Sample records for zahlreichen beispielen aus

  1. Reisen im freien Fall - Teil 2: Das Zwillingsparadoxon aus dem Blickwinkel der ART

    NASA Astrophysics Data System (ADS)

    Sonne, Bernd; Weiß, Reinhard

    2013-07-01

    Nachdem wir uns mit den Prinzipien der ART und einigen Beispielen vertraut gemacht haben, kommen wir nun zur Berechnung des Zwillingsparadoxons aus Sicht des reisenden Zwillings. Dabei spielt das Äquivalenzprinzip eine große Rolle. Deshalb wird die Bewegungssituation noch einmal erläutert, diesmal aus Sicht von Katrin. Sie befindet sich in ihrem System S'in Ruhe. In ihrem System läuft die Zeit t'ab. Nach dem Start fühlt Katrin jedoch eine Kraft, die sie als Gravitationskraft interpretieren kann. Sie merkt es daran, dass sie in den Sitz gedrückt wird. Nach einiger Zeit werden die Triebwerke abgeschaltet, und das Raumschiff fliegt mit konstanter Geschwindigkeit weiter, Phase 2. Anschließend wird der Schub der Triebwerke solange umgekehrt, bis das Raumschiff irgendwo mit der Geschwindigkeit null am Umkehrpunkt U landet, Phase 3 (Abb. 15.1). Die Erde, auf der sich Michael befindet, bewegt sich mit x'(t') aus Sicht von Katrin im freien Fall von ihr weg, s. das Experiment mit dem steigenden Fahrstuhl in Abschn. 13.2.1.

  2. The utility of the AusEd driving simulator in the clinical assessment of driver fatigue.

    PubMed

    Desai, Anup V; Wilsmore, Brad; Bartlett, Delwyn J; Unger, Gunnar; Constable, Ben; Joffe, David; Grunstein, Ronald R

    2007-08-01

    Several driving simulators have been developed which range in complexity from PC based driving tasks to advanced "real world" simulators. The AusEd driving simulator is a PC based task, which was designed to be conducive to and test for driver fatigue. This paper describes the AusEd driving simulator in detail, including the technical requirements, hardware, screen and file outputs, and analysis software. Some aspects of the test are standardized, while others can be modified to suit the experimental situation. The AusEd driving simulator is sensitive to performance decrement from driver fatigue in the laboratory setting, potentially making it useful as a laboratory or office based test for driver fatigue risk management. However, more research is still needed to correlate laboratory based simulator performance with real world driving performance and outcomes.

  3. Probleme aus der Physik

    NASA Astrophysics Data System (ADS)

    Vogel, Helmut

    Das beliebte Arbeitsbuch "Probleme aus der Physik" bietet nun auch zur 17. Auflage von Gerthsen Vogel "Physik" (ISBN 3-540-56638-4) mit über 1150 gelösten Aufgaben aus der Physik und ihren Anwendungen in Technik, Astrophysik, Geound Biowissenschaften eine Fülle an Material zum Üben und Weiterlernen, zur Prüfungsvorbereitung und zum Selbststudium. Neu hinzugekommen ist ein Kapitel zur nichtlinearen Dynamik. Aufgaben aller Schwierigkeitsgrade machen "Probleme aus der Physik" unentbehrlich für Studenten der Physik im Haupt- und Nebenfach; Schüler der Leistungskurse Physik finden hier eine hervorragende Ergänzung.

  4. Validity of the AusTOM scales: A comparison of the AusTOMs and EuroQol-5D

    PubMed Central

    Unsworth, Carolyn A; Duckett, Stephen J; Duncombe, Dianne; Perry, Alison; Skeat, Jemma; Taylor, Nicholas

    2004-01-01

    Background Clinicians require brief outcome measures in their busy daily practice to document global client outcomes. Based on the UK Therapy Outcome Measure, the Australian Therapy Outcome Measures were designed to capture global therapy outcomes of occupational therapy, physiotherapy and speech pathology in the Australian clinical context. The aim of this study was to investigate the construct (convergent) validity of the Australian Therapy Outcome Measures (AusTOMs) by comparing it with the EuroQuol-5D (EQ-5D). Methods The research was a prospective, longitudinal cohort study, with data collected over a seven month time period. The study was conducted at a total of 13 metropolitan and rural health-care sites including acute, sub-acute and community facilities. Two-hundred and five clients were asked to score themselves on the EQ-5D, and the same clients were scored by approximately 115 therapists (physiotherapists, speech pathologists and occupational therapists) using the AusTOMs at admission and discharge. Clients were consecutive admissions who agreed to participate in the study. Clients of all diagnoses, aged 18 years and over (a criteria of the EQ-5D), and able to give informed consent were scored on the measures. Spearman rank order correlation coefficients were used to analyze the relationships between scores from the two tools. The clients were scored on the AusTOMs and EQ-5D. Results There were many health care areas where correlations were expected and found between scores on the AusTOMs and the EQ-5D. Conclusion In the quest to measure the effectiveness of therapy services, managers, health care founders and clinicians are urgently seeking to undertake the first step by identifying tools that can measure therapy outcome. AusTOMs is one tool that can measure global client outcomes following therapy. In this study, it was found that on the whole, the AusTOMs and the EQ-5D measure similar constructs. Hence, although the validity of a tool is never

  5. The Yeast Plasma Membrane ATP Binding Cassette (ABC) Transporter Aus1

    PubMed Central

    Marek, Magdalena; Milles, Sigrid; Schreiber, Gabriele; Daleke, David L.; Dittmar, Gunnar; Herrmann, Andreas; Müller, Peter; Pomorski, Thomas Günther

    2011-01-01

    The ATP binding cassette (ABC) transporter Aus1 is expressed under anaerobic growth conditions at the plasma membrane of the yeast Saccharomyces cerevisiae and is required for sterol uptake. These observations suggest that Aus1 promotes the translocation of sterols across membranes, but the precise transport mechanism has yet to be identified. In this study, an extraction and purification procedure was developed to characterize the Aus1 transporter. The detergent-solubilized protein was able to bind and hydrolyze ATP. Mutagenesis of the conserved lysine to methionine in the Walker A motif abolished ATP hydrolysis. Likewise, ATP hydrolysis was inhibited by classical inhibitors of ABC transporters. Upon reconstitution into proteoliposomes, the ATPase activity of Aus1 was specifically stimulated by phosphatidylserine (PS) in a stereoselective manner. We also found that Aus1-dependent sterol uptake, but not Aus1 expression and trafficking to the plasma membrane, was affected by changes in cellular PS levels. These results suggest a direct interaction between Aus1 and PS that is critical for the activity of the transporter. PMID:21521689

  6. Validation of the Australian Propensity for Angry Driving Scale (Aus-PADS).

    PubMed

    Leal, Nerida L; Pachana, Nancy A

    2009-09-01

    The present study used a university sample to assess the test-retest reliability and validity of the Australian Propensity for Angry Driving Scale (Aus-PADS). The scale has stability over time, and convergent validity was established, as Aus-PADS scores correlated significantly with established anger and impulsivity measures. Discriminant validity was also established, as Aus-PADS scores did not correlate with Venturesomeness scores. The Aus-PADS has demonstrated criterion validity, as scores were correlated with behavioural measures, such as yelling at other drivers, gesturing at other drivers, and feeling angry but not doing anything. Aus-PADS scores reliably predicted the frequency of these behaviours over and above other study variables. No significant relationship between aggressive driving and crash involvement was observed. It was concluded that the Aus-PADS is a reliable and valid tool appropriate for use in Australian research, and that the potential relationship between aggressive driving and crash involvement warrants further investigation with a more representative (and diverse) driver sample.

  7. Energiewende 4.0 - Chancen, Erfolgsfaktoren, Herausforderungen, Barrieren für Stadtwerke und Verteilnetzbetreiber

    NASA Astrophysics Data System (ADS)

    Rieger, Volker; Weber, Sven

    Energiewende und Digitalisierung transformieren die Energiewirtschaft in noch nicht da gewesenem Maße. Durch den Wandel des linearen, vertikalen Geschäftsmodells in ein horizontales und vernetztes entstehen neue Geschäftsmodelle, in die vermehrt neue Anbieter aus anderen Branchen und Start-ups eintreten. Auf Basis langjähriger Beratungserfahrung erläutern die Autoren die zukünftige Geschäftslogik der Energiewelt 4.0. Anhand von Beispielen aus anderen Branchen zeigen sie dabei wesentliche Handlungsfelder speziell für regionale Energieunternehmen auf. Um in der neuen Energiewelt relevant zu bleiben, müssen Energieversorger ihre Kunden in den Fokus rücken, sich für Partnerschaften öffnen, in die Leistungsfähigkeit ihrer Infrastruktur investieren und v. a. einen Kulturwandel hin zu mehr Agilität und Offenheit vollführen.

  8. Malignancy Rate in Thyroid Nodules Classified as Bethesda Category III (AUS/FLUS)

    PubMed Central

    Ho, Allen S.; Sarti, Evan E.; Jain, Kunal S.; Wang, Hangjun; Nixon, Iain J.; Shaha, Ashok R.; Shah, Jatin P.; Kraus, Dennis H.; Ghossein, Ronald; Fish, Stephanie A.; Wong, Richard J.; Lin, Oscar

    2014-01-01

    Background: The Bethesda System for Reporting Thyroid Cytopathology is the standard for interpreting fine needle aspiration (FNA) specimens. The “atypia of undetermined significance/follicular lesion of undetermined significance” (AUS/FLUS) category, known as Bethesda Category III, has been ascribed a malignancy risk of 5–15%, but the probability of malignancy in AUS/FLUS specimens remains unclear. Our objective was to determine the risk of malignancy in thyroid FNAs categorized as AUS/FLUS at a comprehensive cancer center. Methods: The management of 541 AUS/FLUS thyroid nodule patients treated at Memorial Sloan–Kettering Cancer Center between 2008 and 2011 was analyzed. Clinical and radiologic features were examined as predictors for surgery. Target AUS/FLUS nodules were correlated with surgical pathology. Results: Of patients with an FNA initially categorized as AUS/FLUS, 64.7% (350/541) underwent immediate surgery, 17.7% (96/541) had repeat FNA, and 17.6% (95/541) were observed. Repeat FNA cytology was unsatisfactory in 5.2% (5/96), benign in 42.7% (41/96), AUS/FLUS in 38.5% (37/96), suspicious for follicular neoplasm in 5.2% (5/96), suspicious for malignancy in 4.2% (4/96), and malignant in 4.2% (4/96). Of nodules with two consecutive AUS/FLUS diagnoses that were resected, 26.3% (5/19) were malignant. Among all index AUS/FLUS nodules (triaged to surgery, repeat FNA, or observation), malignancy was confirmed on surgical pathology in 26.6% [CI 22.4–31.3]. Among AUS/FLUS nodules triaged to surgery, the malignancy rate was 37.8% [CI 33.1–42.8]. Incidental cancers were found in 22.3% of patients. On univariate logistic regression analysis, factors associated with triage to surgery were younger patient age (p<0.0001), increasing nodule size (p<0.0001), and nodule hypervascularity (p=0.032). Conclusions: In patients presenting to a comprehensive cancer center, malignancy rates in nodules with AUS/FLUS cytology are higher than previously estimated, with 26

  9. Physik

    NASA Astrophysics Data System (ADS)

    Gerthsen, Christian; Vogel, Helmut

    Die siebzehnte Auflage des Gerthsen ist zugleich die sechste in der Bearbeitung Helmut Vogels. Der Autor bereichert das klassische Studien- und Nachschlagewerk mit einem neuen Kapitel zur nichtlinearen Dynamik (auch Chaos und Fraktale werden besprochen) sowie acht instruktiven Farbtafeln. Daneben gibt es wieder kleinere Ergänzungen und Korrekturen. Wo die Darstellung wegen der selbstauferlegten Beschränkung im Umfang nicht alle Themen behandeln kann, helfen die mehr als zahlreichen Übungsaufgaben, die im Band Vogel, Probleme aus der Physik, ISBN 3-540-51217-9, mit Beiheft nun auch zur 17. Auflage verwendbar, ausführlich besprochen werden.

  10. Avoiding Thiol Compound Interference: A Nanoplatform Based on High-Fidelity Au-Se Bonds for Biological Applications.

    PubMed

    Hu, Bo; Kong, Fanpeng; Gao, Xiaonan; Jiang, Lulu; Li, Xiaofeng; Gao, Wen; Xu, Kehua; Tang, Bo

    2018-05-04

    Gold nanoparticles (Au NPs) assembled through Au-S covalent bonds have been widely used in biomolecule-sensing technologies. However, during the process, detection distortions caused by high levels of thiol compounds can still significantly influence the result and this problem has not really been solved. Based on the higher stability of Au-Se bonds compared to Au-S bonds, we prepared selenol-modified Au NPs as an Au-Se nanoplatform (NPF). Compared with the Au-S NPF, the Au-Se NPF exhibits excellent anti-interference properties in the presence of millimolar levels of glutathione (GSH). Such an Au-Se NPF that can effectively avoid detection distortions caused by high levels of thiols thus offers a new perspective in future nanomaterial design, as well as a novel platform with higher stability and selectivity for the in vivo application of chemical sensing and clinical therapies. © 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

  11. Clinicopathological factors increased the risk of malignancy in thyroid nodules with atypical or follicular lesions of undetermined significance (AUS/FLUS) risk factor of malignancy in thyroid nodule with AUS/FLUS

    PubMed Central

    Hong, In Ki; Kim, Jun Ho; Cho, Young Up; Park, Shin-Young

    2016-01-01

    Purpose Ultrasound-guided fine needle aspiration (US-FNA) in thyroid nodules is presently most commonly used to identify whether these nodules are benign or malignant. However, atypical or follicular lesions of undetermined significance (AUS/FLUS), as categorized in the Bethesda System for reporting the results of FNA, cannot be classified as benign or malignant. Therefore, several clinical factors should be considered to assess the risk of malignancy in patients with AUS/FLUS. The purpose of the present study was to determine which clinical factor increased the risk of malignancy in patients with AUS/FLUS. Methods A retrospective study was done on 129 patients with fine needle aspiration categorized as AUS/FLUS from January 2011 through April 2015. Univariate and multivariate analyses were performed to assess the independent effect of risk factors such as age, sex, size of nodule, atypical descriptors, and ultrasonography criteria for malignancy. Results We identified that the presence of spiculated margin (odds ratio [OR], 5.655; 95% confidence interval [CI], 2.114-15.131; P = 0.001), nuclear grooving (OR, 3.697; 95% CI, 1.409-9.701; P = 0.008), irregular nuclei (OR, 3.903; 95% CI, 1.442-10.560; P = 0.001) were shown to be significantly related to malignancy on univariate and multivariate analyses. Conclusion We recommend that surgical resection of thyroid nodules be considered in patients with AUS/FLUS showing the histologic findings such as nuclear grooving, irregular nuclei along with spiculated margin of ultrasonographic finding. PMID:27073790

  12. Exploring traditional aus-type rice for metabolites conferring drought tolerance.

    PubMed

    Casartelli, Alberto; Riewe, David; Hubberten, Hans Michael; Altmann, Thomas; Hoefgen, Rainer; Heuer, Sigrid

    2018-01-25

    Traditional varieties and landraces belonging to the aus-type group of rice (Oryza sativa L.) are known to be highly tolerant to environmental stresses, such as drought and heat, and are therefore recognized as a valuable genetic resource for crop improvement. Using two aus-type (Dular, N22) and two drought intolerant irrigated varieties (IR64, IR74) an untargeted metabolomics analysis was conducted to identify drought-responsive metabolites associated with tolerance. The superior drought tolerance of Dular and N22 compared with the irrigated varieties was confirmed by phenotyping plants grown to maturity after imposing severe drought stress in a dry-down treatment. Dular and N22 did not show a significant reduction in grain yield compared to well-watered control plants, whereas the intolerant varieties showed a significant reduction in both, total spikelet number and grain yield. The metabolomics analysis was conducted with shoot and root samples of plants at the tillering stage at the end of the dry-down treatment. The data revealed an overall higher accumulation of N-rich metabolites (amino acids and nucleotide-related metabolites allantoin and uridine) in shoots of the tolerant varieties. In roots, the aus-type varieties were characterised by a higher reduction of metabolites representative of glycolysis and the TCA cycle, such as malate, glyceric acid and glyceric acid-3-phosphate. On the other hand, the oligosaccharide raffinose showed a higher fold increase in both, shoots and roots of the sensitive genotypes. The data further showed that, for certain drought-responsive metabolites, differences between the contrasting rice varieties were already evident under well-watered control conditions. The drought tolerance-related metabolites identified in the aus-type varieties provide a valuable set of protective compounds and an entry point for assessing genetic diversity in the underlying pathways for developing drought tolerant rice and other crops.

  13. The yeast plasma membrane ATP binding cassette (ABC) transporter Aus1: purification, characterization, and the effect of lipids on its activity.

    PubMed

    Marek, Magdalena; Milles, Sigrid; Schreiber, Gabriele; Daleke, David L; Dittmar, Gunnar; Herrmann, Andreas; Müller, Peter; Pomorski, Thomas Günther

    2011-06-17

    The ATP binding cassette (ABC) transporter Aus1 is expressed under anaerobic growth conditions at the plasma membrane of the yeast Saccharomyces cerevisiae and is required for sterol uptake. These observations suggest that Aus1 promotes the translocation of sterols across membranes, but the precise transport mechanism has yet to be identified. In this study, an extraction and purification procedure was developed to characterize the Aus1 transporter. The detergent-solubilized protein was able to bind and hydrolyze ATP. Mutagenesis of the conserved lysine to methionine in the Walker A motif abolished ATP hydrolysis. Likewise, ATP hydrolysis was inhibited by classical inhibitors of ABC transporters. Upon reconstitution into proteoliposomes, the ATPase activity of Aus1 was specifically stimulated by phosphatidylserine (PS) in a stereoselective manner. We also found that Aus1-dependent sterol uptake, but not Aus1 expression and trafficking to the plasma membrane, was affected by changes in cellular PS levels. These results suggest a direct interaction between Aus1 and PS that is critical for the activity of the transporter.

  14. Structural Insights and the Surprisingly Low Mechanical Stability of the Au-S Bond in the Gold-Specific Protein GolB.

    PubMed

    Wei, Wei; Sun, Yang; Zhu, Mingli; Liu, Xiangzhi; Sun, Peiqing; Wang, Feng; Gui, Qiu; Meng, Wuyi; Cao, Yi; Zhao, Jing

    2015-12-16

    The coordination bond between gold and sulfur (Au-S) has been widely studied and utilized in many fields. However, detailed investigations on the basic nature of this bond are still lacking. A gold-specific binding protein, GolB, was recently identified, providing a unique opportunity for the study of the Au-S bond at the molecular level. We probed the mechanical strength of the gold-sulfur bond in GolB using single-molecule force spectroscopy. We measured the rupture force of the Au-S bond to be 165 pN, much lower than Au-S bonds measured on different gold surfaces (∼1000 pN). We further solved the structures of apo-GolB and Au(I)-GolB complex using X-ray crystallography. These structures showed that the average Au-S bond length in GolB is much longer than the reported average value of Au-S bonds. Our results highlight the dramatic influence of the unique biological environment on the stability and strength of metal coordination bonds in proteins.

  15. Wie man Wert aus Smart Data schöpft

    NASA Astrophysics Data System (ADS)

    Schüller, Katharina; Fritsch, Stefan

    Der vorliegende Beitrag diskutiert an einem konkreten Forschungsprojekt, wie aus den Überwachungsdaten von Photovoltaikanlagen Algorithmen entwickelt wurden, die zukünftig die automatisierte Fehlererkennung und damit eine verbesserte Betriebsführung ermöglichen können. Um von Daten zum optimierten Prozess zu gelangen, sind vier Stufen notwendig. Nach der Datenintegration folgen die Qualitätssicherung, dann die Analyse und schließlich die Umsetzung in eine betrieblich nutzbare Anwendung. Für die Entwicklung valider, praxisrelevanter Modelle stellte es sich als unumgänglich heraus, dass bereits frühzeitig die datengenerierenden Prozesse und damit auch die physikalischen Grundlagen der Anlagen nicht nur von den Prozessexperten, sondern genauso von den Data Scientists verstanden wurden: Es genügt eben nicht, Daten zu konsolidieren und in ein Analysetool zu stecken, sondern die Wertschöpfung aus Daten gelingt nur, wenn eine domänen- und kompetenzübergreifend interdisziplinäre Zusammenarbeit erfolgt, in der beide Seiten bereit sind, kontinuierlich voneinander zu lernen.

  16. Use of vegetation health data for estimation of aus rice yield in bangladesh.

    PubMed

    Rahman, Atiqur; Roytman, Leonid; Krakauer, Nir Y; Nizamuddin, Mohammad; Goldberg, Mitch

    2009-01-01

    Rice is a vital staple crop for Bangladesh and surrounding countries, with interannual variation in yields depending on climatic conditions. We compared Bangladesh yield of aus rice, one of the main varieties grown, from official agricultural statistics with Vegetation Health (VH) Indices [Vegetation Condition Index (VCI), Temperature Condition Index (TCI) and Vegetation Health Index (VHI)] computed from Advanced Very High Resolution Radiometer (AVHRR) data covering a period of 15 years (1991-2005). A strong correlation was found between aus rice yield and VCI and VHI during the critical period of aus rice development that occurs during March-April (weeks 8-13 of the year), several months in advance of the rice harvest. Stepwise principal component regression (PCR) was used to construct a model to predict yield as a function of critical-period VHI. The model reduced the yield prediction error variance by 62% compared with a prediction of average yield for each year. Remote sensing is a valuable tool for estimating rice yields well in advance of harvest and at a low cost.

  17. Use of Vegetation Health Data for Estimation of Aus Rice Yield in Bangladesh

    PubMed Central

    Rahman, Atiqur; Roytman, Leonid; Krakauer, Nir Y.; Nizamuddin, Mohammad; Goldberg, Mitch

    2009-01-01

    Rice is a vital staple crop for Bangladesh and surrounding countries, with interannual variation in yields depending on climatic conditions. We compared Bangladesh yield of aus rice, one of the main varieties grown, from official agricultural statistics with Vegetation Health (VH) Indices [Vegetation Condition Index (VCI), Temperature Condition Index (TCI) and Vegetation Health Index (VHI)] computed from Advanced Very High Resolution Radiometer (AVHRR) data covering a period of 15 years (1991–2005). A strong correlation was found between aus rice yield and VCI and VHI during the critical period of aus rice development that occurs during March–April (weeks 8–13 of the year), several months in advance of the rice harvest. Stepwise principal component regression (PCR) was used to construct a model to predict yield as a function of critical-period VHI. The model reduced the yield prediction error variance by 62% compared with a prediction of average yield for each year. Remote sensing is a valuable tool for estimating rice yields well in advance of harvest and at a low cost. PMID:22574057

  18. Zusammenarbeit aus Sicht eines outgesourcten Instandhalters

    NASA Astrophysics Data System (ADS)

    Grüßer, Stefan; Loeven, Heinz-Wilhelm

    Dauerhafter Unternehmenserfolg ist nur mit einer fortschrittlichen Instandhaltung zu erzielen. Durch den enormen Kostendruck infolge der Globalisierung und die Innovationssprünge auf der technischen Seite wird auch die Frage nach der modernen Organisationsform für die Instandhaltung gestellt. Eine Möglichkeit der Kostenoptimierung ist das Outsourcing von Instandhaltungsleistungen. Hierbei ist es unerlässlich, dass sich die Mitarbeiter zum Dienstleister entwickeln. In diesem Beitrag wird die Entwicklung der InfraServ Knapsack von einer internen Instandhaltungsabteilung hin zu einem Industriellen Dienstleister beschrieben und Aspekte der Zusammenarbeit mit externen Kunden aus der Sicht des outgesourcten Instandhalters geschildert. Es werden die wichtigen Entwicklungsschritte zur Dienstleistungsorientierung der früheren Eigeninstandhaltung aufgezeigt. Dieser Beitrag ist nicht als "Königsweg“ zu verstehen, er soll vielmehr anhand der Erfahrungen einer outgesourcten Eigeninstandhaltung Anregungen für die Entwicklung der eigenen Instandhaltungsorganisation liefern.

  19. Energie aus der Tiefe: Geothermische Stromerzeugung

    NASA Astrophysics Data System (ADS)

    Huenges, Ernst

    2004-11-01

    Die Erde birgt überall genug Wärme für die geothermische Erzeugung elektrischen Stroms, die allerdings Wassertemperaturen von über 150 °C braucht. So warme Gesteinsschichten liegen in Mitteleuropa in mindestens 4 km Tiefe. Ein Kraftwerk muss also beim Betrieb über tiefe Bohrungen Wasser durch das Tiefengestein zirkulieren und dort erhitzen. Von Natur aus ist das Gestein jedoch dafür meist zu wenig porös. Deshalb soll das Einpressen von Fluiden unter hohem Druck die natürlichen Risse im Reservoirgestein künstlich vergrößern. Diese Stimulationstechnik erprobte das GeoForschungsZentrum Potsdam erfolgreich an einer 4309 m tiefen Bohrung im Geothermielabor Groß Schönebeck. Eine zweite Bohrung soll nun eine langfristige Wasserzirkulation im Untergrund erforschen. Funktioniert sie stabil, dann soll eine Demonstrationsanlage Strom erzeugen.

  20. Diagnostic Thyroidectomy May Be Preferable in Patients With Suspicious Ultrasonography Features After Cytopathology Diagnosis of AUS/FLUS in the Bethesda System

    PubMed Central

    Lee, Yong Sang; Kim, Hyeung Kyoo; Chang, Hojin; Kim, Seok Mo; Kim, Bup-Woo; Chang, Hang-Seok; Park, Cheong Soo

    2015-01-01

    Abstract Atypia/follicular lesion of undetermined significance (AUS/FLUS) is a new category in the Bethesda System for Reporting Thyroid Cytopathology (BSRTC) for which repeat fine-needle aspiration cytology (FNAC) is recommended. The aim of this study was to identify specific ultrasonography and clinical predictors of malignancy in a subset of thyroid nodules associated with cytology diagnoses of AUS/FLUS. Between January 2011 and December 2102, 5440 patients underwent thyroid surgery at our institution. Of these, 213 patients were diagnosed AUS/FLUS at the preoperative cytopathology diagnosis. The frequency of FNAC and ultrasonography images was compared between patients with cancerous and benign tumors based on their final pathology. Of the 213 patients, 158 (74.2%) were diagnosed with thyroid carcinoma in their final pathology reports. In univariate and multivariate analyses, the frequency of FNAC was not significantly correlated with the cancer diagnosis. Hypoechogenicity (odds ratio 2.521, P = 0.007) and microcalcification (odds ratio 3.247, P = 0.005) were statistically correlated with cancer risk. Although AUS/FLUS in cytopathology is recommended for repeating FNAC in BSRTC, we proposed that thyroid nodules with ultrasonography findings that suggest the possibility of cancer should undergo thyroidectomy with diagnostic intent. PMID:26705204

  1. Vom Urknall zum Durchknall

    NASA Astrophysics Data System (ADS)

    Unzicker, Alexander

    Lautstarker Applaus erhob sich im Salon III/IV des Marriott-Hotels von Crystal City im amerikanischen Bundesstaat Virginia. In dem überfüllten Konferenzraum starrten alle wie gebannt auf die Leinwand, wo nicht mehr zu sehen war als ein nüchternes Diagramm aus zahlreichen Punkten und einer geschwungenen Kurve. Nureine eigenartige Personengruppe konnte sich davon zu Emotionen hinreißen lassen - Physiker auf der Jahrestagung der Astronomischen Gesellschaft, die ihren Begeisterungssturm noch minutenlang fortsetzten. Was war geschehen? Die im Diagramm aufgetragenen Daten bestätigten mit einer nie da gewesenen Genauigkeit ein fundamentales Naturgesetz zur Wärmeabstrahlung von heißen Körpern. 1900 von Max Planck entdeckt, leuchtete es nun in geradezu mathematischer Reinheit auf. Noch sensationeller war der Ursprung der Daten - Mikrowellensignale verschiedener Frequenzen, die nicht aus einem irdischen Labor stammten, sondern von einem heißen Urzustand des Universums! Ein Feuerball aus Wasserstoff und Helium, noch ohne jegliche Strukturen, die irgendwann Leben ermöglichen sollten, ließ damals seinem Licht freien Lauf. Mehr als zehn Milliarden Jahre war es bis zu den Detektoren des vom Menschen gebauten Satelliten COBE unterwegs, der wenige Tage zuvor die Daten übertragen hatte. Wenn ich das alles wie einen Film in meiner Vorstellung ablaufen lasse, bekomme ich immer eine Gänsehaut, als würde ich die inzwischen extrem abgekühlte Strahlung tatsächlich spüren. Ihre Gleichverteilung im Raum macht uns auch deutlich, dass wir uns nicht einbilden dürfen, an einem besonderen Ort im Universum zu leben - intelligente Aliens könnten sich seitdem überall entwickelt haben! Sollten sie - was nicht wahrscheinlich ist - uns wirklich von Zeit zu Zeit über die Schulter schauen, dann hätten sie an jenem Nachmittag des 13. Januar 1990, als der Vortrag stattfand, bestimmt anerkennend mit ihrem großen Kopf genickt.

  2. Using NOAA/AVHRR based remote sensing data and PCR method for estimation of Aus rice yield in Bangladesh

    NASA Astrophysics Data System (ADS)

    Nizamuddin, Mohammad; Akhand, Kawsar; Roytman, Leonid; Kogan, Felix; Goldberg, Mitch

    2015-06-01

    Rice is a dominant food crop of Bangladesh accounting about 75 percent of agricultural land use for rice cultivation and currently Bangladesh is the world's fourth largest rice producing country. Rice provides about two-third of total calorie supply and about one-half of the agricultural GDP and one-sixth of the national income in Bangladesh. Aus is one of the main rice varieties in Bangladesh. Crop production, especially rice, the main food staple, is the most susceptible to climate change and variability. Any change in climate will, thus, increase uncertainty regarding rice production as climate is major cause year-to-year variability in rice productivity. This paper shows the application of remote sensing data for estimating Aus rice yield in Bangladesh using official statistics of rice yield with real time acquired satellite data from Advanced Very High Resolution Radiometer (AVHRR) sensor and Principal Component Regression (PCR) method was used to construct a model. The simulated result was compared with official agricultural statistics showing that the error of estimation of Aus rice yield was less than 10%. Remote sensing, therefore, is a valuable tool for estimating crop yields well in advance of harvest, and at a low cost.

  3. A new leaf rust resistance gene Lr79 mapped in chromosome 3BL from the durum wheat landrace Aus26582.

    PubMed

    Qureshi, Naeela; Bariana, Harbans; Kumran, Vikas Venu; Muruga, Sivasamy; Forrest, Kerrie L; Hayden, Mathew J; Bansal, Urmil

    2018-05-01

    A new leaf rust resistance gene Lr79 has been mapped in the long arm of chromosome 3B and a linked marker was identified for marker-assisted selection. Aus26582, a durum wheat landrace from the A. E. Watkins Collection, showed seedling resistance against durum-specific and common wheat-specific Puccinia triticina (Pt) pathotypes. Genetic analysis using a recombinant inbred line (RIL) population developed from a cross between Aus26582 and the susceptible parent Bansi with Australian Pt pathotype showed digenic inheritance and the underlying loci were temporarily named LrAW2 and LrAW3. LrAW2 was located in chromosome 6BS and this study focused on characterisation of LrAW3 using RILs lacking LrAW2. LrAW3 was incorporated into the DArTseq map of Aus26582/Bansi and was located in chromosome 3BL. Markers linked with LrAW3 were developed from the chromosome survey sequence contig 3B_10474240 in which closely-linked DArTseq markers 1128708 and 3948563 were located. Although bulk segregant analysis (BSA) with the 90 K Infinium array identified 51 SNPs associated with LrAW3, only one SNP-derived KASP marker mapped close to the locus. Deletion bin mapping of LrAW3-linked markers located LrAW3 between bins 3BL11-0.85-0.90 and 3BL7-0.63. Since no other all stage leaf rust resistance gene is located in chromosome 3BL, LrAW3 represented a new locus and was designated Lr79. Marker sun786 mapped 1.8 cM distal to Lr79 and Aus26582 was null for this locus. However, the marker can be reliably scored as it also amplifies a monomorphic fragment that serves as an internal control to differentiate the null status of Aus26582 from reaction failure. This marker was validated among a set of durum and common wheat cultivars and was shown to be useful for marker-assisted selection of Lr79 at both ploidy levels.

  4. Description of the ambulance services participating in the Aus-ROC Australian and New Zealand out-of-hospital cardiac arrest Epistry.

    PubMed

    Beck, Ben; Bray, Janet E; Smith, Karen; Walker, Tony; Grantham, Hugh; Hein, Cindy; Thorrowgood, Melanie; Smith, Anthony; Inoue, Madoka; Smith, Tony; Dicker, Bridget; Swain, Andy; Bosley, Emma; Pemberton, Katherine; McKay, Michael; Johnston-Leek, Malcolm; Cameron, Peter; Perkins, Gavin D; Finn, Judith

    2016-12-01

    The present study aimed to describe and examine similarities and differences in the current service provision and resuscitation protocols of the ambulance services participating in the Aus-ROC Australian and New Zealand out-of-hospital cardiac arrest (OHCA) Epistry. Understanding these similarities and differences is important in identifying ambulance service factors that might explain regional variation in survival of OHCA in the Aus-ROC Epistry. A structured questionnaire was completed by each of the ambulance services participating in the Aus-ROC Epistry. These ambulance services were SA Ambulance Service, Ambulance Victoria, St John Ambulance Western Australia, Queensland Ambulance Service, St John Ambulance NT, St John New Zealand and Wellington Free Ambulance. The survey aimed to describe ambulance service and dispatch characteristics, resuscitation protocols and details of cardiac arrest registries. We observed similarities between services with respect to the treatment of OHCA and dispatch systems. Differences between services were observed in the serviced population; the proportion of paramedics with basic life support, advanced life support or intensive care training skills; the number of OHCA cases attended; guidelines related to withholding or terminating resuscitation attempts; and the variables that might be used to define 'attempted resuscitation'. All seven participating ambulance services were noted to have existing OHCA registries. There is marked variation between ambulance services currently participating in the Aus-ROC Australian and New Zealand OHCA Epistry with respect to workforce characteristics and key variable definitions. This variation between ambulance services might account for a proportion of the regional variation in survival of OHCA. © 2016 Australasian College for Emergency Medicine and Australasian Society for Emergency Medicine.

  5. Characterisation and mapping of adult plant stripe rust resistance in wheat accession Aus27284.

    PubMed

    Nsabiyera, Vallence; Bariana, Harbans S; Qureshi, Naeela; Wong, Debbie; Hayden, Matthew J; Bansal, Urmil K

    2018-07-01

    A new adult plant stripe rust resistance gene, Yr80, was identified in a common wheat landrace Aus27284. Linked markers were developed and validated for their utility in marker-assisted selection. Stripe rust, caused by Puccinia striiformis f. sp. tritici (Pst), is among the most important constraints to global wheat production. The identification and characterisation of new sources of host plant resistance enrich the gene pool and underpin deployment of resistance gene pyramids in new cultivars. Aus27284 exhibited resistance at the adult plant stage against predominant Pst pathotypes and was crossed with a susceptible genotype Avocet S. A recombinant inbred line (RIL) population comprising 121 lines was developed and tested in the field at three locations in 2016 and two in 2017 crop seasons. Monogenic segregation for adult plant stripe rust response was observed among the Aus27284/Avocet S RIL population and the underlying locus was temporarily designated YrAW11. Bulked-segregant analysis using the Infinium iSelect 90K SNP wheat array placed YrAW11 in chromosome 3B. Kompetitive allele specific PCR (KASP) primers were designed for the linked SNPs and YrAW11 was flanked by KASP_65624 and KASP_53292 (3 cM) proximally and KASP_53113 (4.9 cM) distally. A partial linkage map of the genomic region carrying YrAW11 comprised nine KASP and two SSR markers. The physical position of KASP markers in the pseudomolecule of chromosome 3B placed YrAW11 in the long arm and the location of markers gwm108 and gwm376 in the deletion bin 3BL2-0.22 supported this conclusion. As no other stripe rust resistance locus has been reported in chromosome 3BL, YrAW11 was formally designated Yr80. Marker KASP_ 53113 was polymorphic among 94% of 81 Australian wheat cultivars used for validation.

  6. AusLAMP long period magnetotellurics: progress update and new insights into Victorian geology and mineral prospectivity

    NASA Astrophysics Data System (ADS)

    Chopping, R. G.; Duan, J.; Czarnota, K.; Kemp, T.

    2016-12-01

    It is becoming generally accepted that world-class mineral deposits have a footprint on a scale of the lithosphere. For this reason, Australia has embarked on the Australian Lithospheric Architecture Magnetotelluric Project (AusLAMP) to map the conductivity of the mid to lower crust and the lithospheric mantle. AusLAMP is a collaborative project between Geoscience Australia, State and Territory Geological Surveys and Universities. The project aims to collect long-period magnetotelluric data across the Australian continent on a nominal 0.5x0.5° ( 55x55 km) grid. To date, more than 450 sites have been acquired including all sites for the state of Victoria, two-thirds of sites in South Australia and Tasmania, and approximately 25 stations in Western Australia. Progress is ramping up with acquisition to turn to the state of New South Wales, the remainder of South Australia and also acquisition in northern Australia. To support this increasing acquisition activity, additional instruments have been purchased to add to those already in Australia. 3D inversion results are now available for AusLAMP Victoria. In collaboration with the National Computational Infrastructure (NCI), the 3D ModEM codes were optimised for use on the NCI's supercomputer, speeding up large-scale inversions by an order of magnitude. The results of these inversions indicate anomalously conductive lithospheric mantle associated with the central region of Victoria which contains significant mineral deposits and prospectivity, and also anomalous resistive lithosphere associated with the southern extension of the dynamically supported Australian Alps and the Newer Volcanics Province. Modelled conductivities are also consistent with mantle xenolith data from central Victoria. Within the crust, the dominant trend of the data is along elongate north-eastern corridors of conductive material. These results shed new questions on the geological history of this region and the lithospheric architecture of the

  7. The electric dipole moments in the ground states of gold oxide, AuO, and gold sulfide, AuS.

    PubMed

    Zhang, Ruohan; Yu, Yuanqin; Steimle, Timothy C; Cheng, Lan

    2017-02-14

    The B 2 Σ - - X 2 Π 3/2 (0,0) bands of a cold molecular beam sample of gold monoxide, AuO, and gold monosulfide, AuS, have been recorded at high resolution both field free and in the presence of a static electric field. The observed electric field induced splittings and shifts were analyzed to produce permanent electric dipole moments, μ→ el , of 2.94±0.06 D and 2.22±0.05 D for the X 2 Π 3/2 (v = 0) states of AuO and AuS, respectively. A molecular orbital correlation diagram is used to rationalize the trend in ground state μ→ el values for AuX (X = F, Cl, O, and S) molecules. The experimentally determined μ→ el are compared to those computed at the coupled-cluster singles and doubles (CCSD) level augmented with a perturbative inclusion of triple excitations (CCSD(T)) level of theory.

  8. Establishing the Aus-ROC Australian and New Zealand out-of-hospital cardiac arrest Epistry

    PubMed Central

    Bray, Janet; Smith, Karen; Walker, Tony; Grantham, Hugh; Hein, Cindy; Thorrowgood, Melanie; Smith, Anthony; Smith, Tony; Dicker, Bridget; Swain, Andy; Bailey, Mark; Bosley, Emma; Pemberton, Katherine; Cameron, Peter; Nichol, Graham; Finn, Judith

    2016-01-01

    Introduction Out-of-hospital cardiac arrest (OHCA) is a global health problem with low survival. Regional variation in survival has heightened interest in combining cardiac arrest registries to understand and improve OHCA outcomes. While individual OHCA registries exist in Australian and New Zealand ambulance services, until recently these registries have not been combined. The aim of this protocol paper is to describe the rationale and methods of the Australian Resuscitation Outcomes Consortium (Aus-ROC) OHCA epidemiological registry (Epistry). Methods and analysis The Aus-ROC Epistry is designed as a population-based cohort study. Data collection started in 2014. Six ambulance services in Australia (Ambulance Victoria, SA Ambulance Service, St John Ambulance Western Australia and Queensland Ambulance Service) and New Zealand (St John New Zealand and Wellington Free Ambulance) currently contribute data. All OHCA attended by ambulance, regardless of aetiology or patient age, are included in the Epistry. The catchment population is approximately 19.3 million persons, representing 63% of the Australian population and 100% of the New Zealand population. Data are collected using Utstein-style definitions. Information incorporated into the Epistry includes demographics, arrest features, ambulance response times, treatment and patient outcomes. The primary outcome is ‘survival to hospital discharge’, with ‘return of spontaneous circulation’ as a key secondary outcome. Ethics and dissemination Ethics approval was independently sought by each of the contributing registries. Overarching ethics for the Epistry was provided by Monash University HREC (Approval No. CF12/3938—2012001888). A population-based OHCA registry capturing the majority of Australia and New Zealand will allow risk-adjusted outcomes to be determined, to enable benchmarking across ambulance providers, facilitate the identification of system-wide strategies associated with survival from OHCA, and

  9. Das Lektin aus der Erbse Pisum sativum : Bindungsstudien, Monomer-Dimer-Gleichgewicht und Rückfaltung aus Fragmenten

    NASA Astrophysics Data System (ADS)

    Küster, Frank

    2002-11-01

    Das Lektin aus Pisum sativum, der Gartenerbse, ist Teil der Familie der Leguminosenlektine. Diese Proteine haben untereinander eine hohe Sequenzhomologie, und die Struktur ihrer Monomere, ein all-ß-Motiv, ist hoch konserviert. Dagegen gibt es innerhalb der Familie eine große Vielfalt an unterschiedlichen Quartärstrukturen, die Gegenstand kristallographischer und theoretischer Arbeiten waren. Das Erbsenlektin ist ein dimeres Leguminosenlektin mit einer Besonderheit in seiner Struktur: Nach der Faltung in der Zelle wird aus einem Loop eine kurze Aminosäuresequenz herausgeschnitten, so dass sich in jeder Untereinheit zwei unabhängige Polypeptidketten befinden. Beide Ketten sind aber stark miteinander verschränkt und bilden eine gemeinsame strukturelle Domäne. Wie alle Lektine bindet Erbsenlektin komplexe Oligosaccharide, doch sind seine physiologische Rolle und der natürliche Ligand unbekannt. In dieser Arbeit wurden Versuche zur Entwicklung eines Funktionstests für Erbsenlektin durchgeführt und seine Faltung, Stabilität und Monomer-Dimer-Gleichgewicht charakterisiert. Um die spezifische Rolle der Prozessierung für Stabilität und Faltung zu untersuchen, wurde ein unprozessiertes Konstrukt in E. coli exprimiert und mit der prozessierten Form verglichen. Beide Proteine zeigen die gleiche kinetische Stabilität gegenüber chemischer Denaturierung. Sie denaturieren extrem langsam, weil nur die isolierten Untereinheiten entfalten können und das Monomer-Dimer-Gleichgewicht bei mittleren Konzentrationen an Denaturierungsmittel auf der Seite der Dimere liegt. Durch die extrem langsame Entfaltung zeigen beide Proteine eine apparente Hysterese im Gleichgewichtsübergang, und es ist nicht möglich, die thermodynamische Stabilität zu bestimmen. Die Stabilität und die Geschwindigkeit der Assoziation und Dissoziation in die prozessierten bzw. nichtprozessierten Untereinheiten sind für beide Proteine gleich. Darüber hinaus konnte gezeigt werden, dass auch unter

  10. Die Energiebranche am Beginn der digitalen Transformation: aus Versorgern werden Utilities 4.0

    NASA Astrophysics Data System (ADS)

    Doleski, Oliver D.

    Die traditionelle Energieversorgung befindet sich in einer Zäsur. Das seit Jahrzehnten bewährte und stabile Geschäftsmodell einer zuverlässig planbaren, zentralen Energieerzeugung mit anschließender unidirektionaler Verteilung geriet spätestens seit der Energiewende des Jahres 2011 immer mehr unter Druck. Angesichts fortschreitender Digitalisierung und Dezentralisierung einerseits und gestiegener Erwartungshaltung der Kunden gegenüber "ihrem" Versorger andererseits sieht sich die Energiebranche heute einem epochalen Transformationsprozess gegenübergestellt. Bei diesem entwickeln sich aus den monopolistischen Versorgern des 19. und 20. Jahrhunderts (Utility 1.0), über die liberalisierten Energieversorgungsunternehmen (Utility 2.0) und Energiedienstleistungsunternehmen (Utility 3.0) heutiger Prägung, die digitalen Energiedienstleistungsunternehmen (Utility 4.0) von morgen. Oliver D. Doleski beschränkt sich in seinem Beitrag nicht auf die reine Beschreibung dieses Veränderungsprozesses an sich. Vielmehr werden darüber hinaus sowohl die mit dieser Entwicklung verbundenen übergeordneten Ziele als auch die wesentlichen Anforderungen an erfolgreiche Utilities 4.0 skizziert. Das Kapitel endet mit einem prägnanten Überblick profitabler Betätigungsfelder, die zur Sicherung der ökonomischen Zukunft von Energiekonzernen, Regionalversorgern und Stadtwerken beitragen können.

  11. Evolving electrical SCLM models of the Australian continent - results of the South Australia AusLAMP deployment

    NASA Astrophysics Data System (ADS)

    Robertson, K. E.; Thiel, S.; Heinson, G. S.

    2017-12-01

    The Australian Lithospheric Architecture Magnetotelluric Project (AusLAMP) is an Australian initiative to map the Australian continental lithosphere using magnetotelluric (MT) stations to obtain a resistivity model of the subsurface. It is a joint project between Geoscience Australia, state surveys, and Universities. We present new MT 3D inversion results of the largest coherent array of the AusLAMP MT deployments to date covering two-thirds of South Australia, funded largely by the Geological Survey of South Australia with additional funding by Geoscience Australia and The University of Adelaide. The model extends across the South Australian Gawler Craton, including the Eucla Basin to the west of the craton and the Flinders Ranges and Curnamona Province to the east. The MT array covers parts of the Australian lithosphere, which has been largely unexplored with seismic tomography methods and provide a unique insight into the tectonic evolution of the continent. We incorporate 284 long-period (10s-10,000s) MT stations separated roughly every half degree latitude and longitude across an area spanning 1200 km x 800 km, south of latitude -28.5 degrees and from longitude 129 degrees to 141 degrees. We invert 24 discrete periods of the impedance tenor between 7 s and 13,000 s, and 22 different periods of the tipper data between 7s-8000 s period. The results show a heterogeneous lower crust and mantle lithosphere with a primarily resistive mantle (>1000 Ωm) lithosphere in the central and western part of the Gawler Craton and Eucla Domain. The model shows a generally NS oriented electric LAB offset from deeper cratonic lithosphere in the west to a shallow lithosphere along the eastern margin of the Gawler Craton extending further east towards the Proterozoic and Phanerozoic eastern part of Australia. The lower crust is generally resistive with elongated lower crustal conductivity anomalies, which are associated with major translithospheric shear zones likely existent

  12. The Quintessential Bond of Modern Science. The Detection and Characterization of Diatomic Gold Sulfide, AuS.

    NASA Astrophysics Data System (ADS)

    Kokkin, Damian L.; Zhang, Ruohan; Steimle, Timothy; Pearlman, Bradley W.; Wyse, Ian A.; Varberg, Thomas D.

    2015-06-01

    The gold sulfur bond is becoming ever more important to a vast range of scientific endeavors. We have recorded the electronic spectrum of gas-phase AuS, at vibrational resolution, over the 440-740 nm wavelength range. By application of a synergy of production techniques, hot hollow-cathode sputtering source and cold laser ablation molecular beam source, excitation from both spin components of the inverted ^2Π ground state is possible. Excitation into four different excited electronic states involving approximately 100 red-degraded bands has been observed. The four excited states have been characterized as a^4σ1/2, A^2σ^+1/2, B^2σ^-1/2 and C^2Δ_i. The observed red-degraded vibronic bands where then globally analyzed to determine an accurate set of term energies and vibrational constants for the excited and ground electronic states. The electronic configurations from which these states arise will be discussed.

  13. Objectively measured sedentary time, physical activity, and metabolic risk: the Australian Diabetes, Obesity and Lifestyle Study (AusDiab).

    PubMed

    Healy, Genevieve N; Wijndaele, Katrien; Dunstan, David W; Shaw, Jonathan E; Salmon, Jo; Zimmet, Paul Z; Owen, Neville

    2008-02-01

    We examined the associations of objectively measured sedentary time and physical activity with continuous indexes of metabolic risk in Australian adults without known diabetes. An accelerometer was used to derive the percentage of monitoring time spent sedentary and in light-intensity and moderate-to-vigorous-intensity activity, as well as mean activity intensity, in 169 Australian Diabetes, Obesity and Lifestyle Study (AusDiab) participants (mean age 53.4 years). Associations with waist circumference, triglycerides, HDL cholesterol, resting blood pressure, fasting plasma glucose, and a clustered metabolic risk score were examined. Independent of time spent in moderate-to-vigorous-intensity activity, there were significant associations of sedentary time, light-intensity time, and mean activity intensity with waist circumference and clustered metabolic risk. Independent of waist circumference, moderate-to-vigorous-intensity activity time was significantly beneficially associated with triglycerides. These findings highlight the importance of decreasing sedentary time, as well as increasing time spent in physical activity, for metabolic health.

  14. Prevalence, incidence, risk factors and treatment of atrial fibrillation in Australia: The Australian Diabetes, Obesity and Lifestyle (AusDiab) longitudinal, population cohort study.

    PubMed

    Diouf, Ibrahima; Magliano, Dianna J; Carrington, Melinda J; Stewart, Simon; Shaw, Jonathan E

    2016-02-15

    We sought to describe the prevalence, incidence, risk factors and treatment (according to stroke risk) of atrial fibrillation (AF) in the national, population-based Australian Diabetes, Obesity and Lifestyle (AusDiab) study cohort. ECG data were available from 8273/11,247 participants of AusDiab study in 1999/2000 and from 5422 participants in 2004/2005. Minnesota coding was used to identify prevalent and incident cases of AF. 90 prevalent cases of AF (14.1 per 1000) comprising 56 men (mean age 70.5 ± 1.9 years) and 34 women (aged 78.3 ± 1.2 years) were identified in 1999-2000. AF prevalence was associated with sedentary behaviour versus physically active (PR 2.0, 95% CI 1.2-3.6). 53 incident cases of AF (2.0, 95%, CI 1.5-2.6 per 1000 person-year) were subsequently identified in 2004-2005. Increased risk of incident AF was associated with male sex, obesity, history of angina, myocardial infarction and stroke. Both increased weight gain and increased weight loss appeared to be associated with increased risks of developing AF in women, while no obvious association was observed in men. Despite their high risk for stroke, anti-thrombotic therapy was observed in only 39.3% of participants with CHA2DS2-VASC scores ≥ 2. This study contributes to a better understanding of the AF burden. With the ageing population, coordinated efforts will be needed to anticipate the future health care costs related to AF and its impacts on the health care system. This will include appropriate application of anti-thrombotic therapy according to risk of thrombo-embolic events. Copyright © 2015 Elsevier Ireland Ltd. All rights reserved.

  15. Empowering Parents of Australian Infants and Children in Hospital: Translation, Cultural Adaptation, and Validation of the EMpowerment of PArents in The Intensive Care-30-AUS Questionnaire.

    PubMed

    Gill, Fenella J; Wilson, Sally; Aydon, Laurene; Leslie, Gavin D; Latour, Jos M

    2017-11-01

    To translate, culturally adapt, and psychometrically test the EMpowerment of PArents in The Intensive Care-30 questionnaire in Australian pediatric critical care, neonatal, and pediatric ward settings. Cross-sectional, descriptive, multicenter study conducted in two phases; 1) translation and cultural adaptation and 2) validation of the EMpowerment of PArents in The Intensive Care-30 questionnaire. Two Western Australian sites, the PICU and two pediatric wards of a children's hospital and the neonatal unit of a women's and newborn hospital. Parents whose baby or child was admitted to the participating wards or units with a length of hospital stay greater than 24 hours. None. Phase 1: A structured 10-step translation process adhered to international principles of good practice for translation and cultural adaptation of patient-reported outcomes. Thirty parents participated in cognitive debriefing. Phase 2: A total of 328 parents responded to the EMpowerment of PArents in The Intensive Care-30-AUS questionnaire. Reliability was sufficient (Cronbach α at domain level 0.70 -0.82, for each clinical area 0.56-0.86). Congruent validity was adequate between the domains and three general satisfaction items (rs 0.38-0.69). Nondifferential validity showed no significant effect size between three patient or parent demographic characteristics and the domains (Cohen's d < 0.36). Between the different clinical areas, significant differences in responses were found in all domains. The translated and culturally adapted EMpowerment of PArents in The Intensive Care-30-AUS is a reliable and valid questionnaire to measure parent-reported outcomes in pediatric critical care, pediatric ward, and neonatal hospital settings. Using this questionnaire can provide a framework for a standardized quality improvement approach and identification of best practices across specialties, hospital services and for benchmarking similar health services worldwide.

  16. Socio-demographic correlates of prolonged television viewing time in Australian men and women: the AusDiab study.

    PubMed

    Clark, Bronwyn Kay; Sugiyama, Takemi; Healy, Genevieve N; Salmon, Jo; Dunstan, David W; Shaw, Jonathan E; Zimmet, Paul Z; Owen, Neville

    2010-09-01

    Sedentary behaviors, particularly television viewing (TV) time, are associated with adverse health outcomes in adults, independent of physical activity levels. These associations are stronger and more consistent for women than for men. Multivariate regression models examined the sociodemographic correlates of 2 categories of TV time (≥ 2 hours/day and ≥ 4 hours/day); in a large, population-based sample of Australian adults (4950 men, 6001 women; mean age 48.1 years, range 25-91) who participated in the 1999/2000 Australian Diabetes, Obesity, and Lifestyle (AusDiab) study. Some 46% of men and 40% of women watched ≥ 2 hours TV/day; 9% and 6% respectively watched ≥ 4 hours/day. For both men and women, ≥ 2 hours TV/day was associated with less than tertiary education, living outside of state capital cities, and having no paid employment. For women, mid and older age (45-64 and 65+) were also significant correlates of ≥ 2 hours TV/day. Similar patterns of association were observed in those viewing ≥ 4 hours/day. Prolonged TV time is associated with indices of social disadvantage and older age. These findings can inform the understanding of potential contextual influences and guide preventive initiatives.

  17. Construction of Pseudomolecule Sequences of the aus Rice Cultivar Kasalath for Comparative Genomics of Asian Cultivated Rice

    PubMed Central

    Sakai, Hiroaki; Kanamori, Hiroyuki; Arai-Kichise, Yuko; Shibata-Hatta, Mari; Ebana, Kaworu; Oono, Youko; Kurita, Kanako; Fujisawa, Hiroko; Katagiri, Satoshi; Mukai, Yoshiyuki; Hamada, Masao; Itoh, Takeshi; Matsumoto, Takashi; Katayose, Yuichi; Wakasa, Kyo; Yano, Masahiro; Wu, Jianzhong

    2014-01-01

    Having a deep genetic structure evolved during its domestication and adaptation, the Asian cultivated rice (Oryza sativa) displays considerable physiological and morphological variations. Here, we describe deep whole-genome sequencing of the aus rice cultivar Kasalath by using the advanced next-generation sequencing (NGS) technologies to gain a better understanding of the sequence and structural changes among highly differentiated cultivars. The de novo assembled Kasalath sequences represented 91.1% (330.55 Mb) of the genome and contained 35 139 expressed loci annotated by RNA-Seq analysis. We detected 2 787 250 single-nucleotide polymorphisms (SNPs) and 7393 large insertion/deletion (indel) sites (>100 bp) between Kasalath and Nipponbare, and 2 216 251 SNPs and 3780 large indels between Kasalath and 93-11. Extensive comparison of the gene contents among these cultivars revealed similar rates of gene gain and loss. We detected at least 7.39 Mb of inserted sequences and 40.75 Mb of unmapped sequences in the Kasalath genome in comparison with the Nipponbare reference genome. Mapping of the publicly available NGS short reads from 50 rice accessions proved the necessity and the value of using the Kasalath whole-genome sequence as an additional reference to capture the sequence polymorphisms that cannot be discovered by using the Nipponbare sequence alone. PMID:24578372

  18. Validity of a multi-context sitting questionnaire across demographically diverse population groups: AusDiab3.

    PubMed

    Clark, Bronwyn K; Lynch, Brigid M; Winkler, Elisabeth Ah; Gardiner, Paul A; Healy, Genevieve N; Dunstan, David W; Owen, Neville

    2015-12-04

    Sitting time questionnaires have largely been validated in small convenience samples. The validity of this multi-context sitting questionnaire against an accurate measure of sitting time is reported in a large demographically diverse sample allowing assessment of validity in varied demographic subgroups. A subgroup of participants of the third wave of the Australian Diabetes, Obesity, and Lifestyle (AusDiab3) study wore activPAL3™ monitors (7 days, 24 hours/day protocol) and reported their sitting time for work, travel, television viewing, leisure computer use and "other" purposes, on weekdays and weekend days (n = 700, age 36-89 years, 45% men). Correlations (Pearson's r; Spearman's ρ) of the self-report measures (the composite total, contextual measures and items) with monitor-assessed sitting time were assessed in the whole sample and separately in socio-demographic subgroups. Agreement was assessed using Bland-Altman plots. The composite total had a correlation with monitor-assessed sitting time of r = 0.46 (95% confidence interval [CI]: 0.40, 0.52); this correlation did not vary significantly between demographic subgroups (all >0.4). The contextual measure most strongly correlated with monitor-assessed sitting time was work (ρ = 0.25, 95 % CI: 0.17, 0.31), followed by television viewing (ρ = 0.16, 95 % CI: 0.09, 0.24). Agreement of the composite total with monitored sitting time was poor, with a positive bias (B = 0.53, SE 0.04, p < 0.001) and wide limits of agreement (±4.32 h). This multi-context questionnaire provides a total sitting time measure that ranks participants well for the purposes of assessing health associations but has limited accuracy relative to activPAL-assessed sitting time. Findings did not differ in demographic subgroups.

  19. Fine mapping of the chromosome 5B region carrying closely linked rust resistance genes Yr47 and Lr52 in wheat

    USDA-ARS?s Scientific Manuscript database

    The widely effective and linked rust resistance genes Yr47 and Lr52 were previously mapped in the short arm of chromosome 5B in two F3 populations (Aus28183/Aus27229 and Aus28187/Aus27229). The Aus28183/Aus27229 F3 population was advanced to generate an F6 recombinant inbred line (RIL) population t...

  20. Young investigator challenge: Atypia of undetermined significance in thyroid FNA: Standardized terminology without standardized management--a closer look at repeat FNA and quality measures.

    PubMed

    Brandler, Tamar C; Aziz, Mohamed S; Coutsouvelis, Constantinos; Rosen, Lisa; Rafael, Oana C; Souza, Fabiola; Jelloul, Fatima-Zahra; Klein, Melissa A

    2016-01-01

    The Bethesda system (TBS) for the reporting of thyroid cytopathology established the category of atypia of undetermined significance (AUS) with a 7% target rate and a 5% to 15% implied malignancy risk. Recent literature has reported a broad range of AUS rates, subsequent malignancy rates, and discrepant results from repeat fine-needle aspiration (FNA) versus surgical follow-up. Therefore, this study examined AUS data from the Hofstra North Shore-LIJ School of Medicine to determine the best clinical follow-up. Thyroid aspirates interpreted as AUS in 2012-2014 at the Hofstra North Shore-LIJ School of Medicine were collected. Repeat FNA and surgical follow-up data were tabulated to establish AUS, secondary AUS (diagnosed upon repeat FNA follow-up of a primary FNA AUS diagnosis), atypia of undetermined significance/malignancy (AUS:M) ratios (according to the TBS categories), and malignancy rates for AUS. The AUS rate was 8.5% (976/11,481), and there was follow-up data for 545 cases. The AUS:M ratio was 2.0. Repeat FNA was performed for 281 cases; 57 proceeded to surgical intervention. Repeat FNA reclassified 71.17% of the cases. The malignancy rates for AUS cases proceeding directly to surgery and for those receiving a surgical intervention after a repeat AUS diagnosis were 33.33% and 43.75%, respectively. Repeat FNA resulted in definitive diagnostic reclassification for 67.61% of primary AUS cases and reduced the number of patients triaged to surgery, with 56.58% of the cases recategorized as benign. Cases undergoing surgery after repeat AUS had a higher malignancy rate than those going straight to surgery, and this emphasizes the value of repeat FNA in selecting surgical candidates. In addition, this study highlights the utility of AUS rate monitoring as a quality measure that has contributed to the ability of the Hofstra North Shore-LIJ School of Medicine to adhere closely to TBS recommendations. © 2016 American Cancer Society.

  1. Gender disparities in the assessment and management of cardiovascular risk in primary care: the AusHEART study.

    PubMed

    Turnbull, Fiona; Arima, Hisatomi; Heeley, Emma; Cass, Alan; Chalmers, John; Morgan, Claire; Patel, Anushka; Peiris, David; Weekes, Andrew; Anderson, Craig

    2011-06-01

    Studies indicate ongoing gender-based differences in the prevention, detection and management of cardiovascular disease. The aims of this study were to determine whether there are differences in general practitioners' (GPs') perceptions of a patient's cardiovascular risk compared with the patient's estimated risk and in the patient's subsequent medical management according to patient sex. The Australian Hypertension and Absolute Risk Study (AusHEART) was a nationally representative, cluster-stratified, cross-sectional survey among 322 GPs. Each GP was asked to collect data on cardiovascular disease risk factors and their management in 15-20 consecutive patients (age ≥55 years) who presented between April and June, 2008. They were also asked to estimate each patient's absolute risk of a cardiovascular event in the next five years. The main outcomes were the Adjusted Framingham risk, GP estimated risk and proportion of patients receiving blood pressure-lowering, statin and antiplatelet therapy. A total of 5293 patients were recruited to the study, of whom 2968 (56%) were women. Among patients without established cardiovascular disease, the level of agreement between the GP estimated risk and the Adjusted Framingham risk was poor (<50%) and was similarly so for men (kappa coefficient 0.18; 95% confidence interval (CI) 0.14-0.21) and women (0.19; 95% CI 0.16-0.22; P homogeneity = 0.57). For patients with established cardiovascular disease, however, women were more likely to be assigned by the GP to a lower risk category (66% vs. 54%, P < 0.001) and less likely to be prescribed combination (blood pressure-lowering, statin and antiplatelet) (44% vs. 56%, P < 0.001) therapy compared with men, even after adjusting for patient age. Cardiovascular risk is underrecognized and undertreated in Australian primary care patients, with women apparently disproportionately affected. These findings underscore the importance of initiatives to raise awareness of

  2. Axillary Ultrasound After Neoadjuvant Chemotherapy and Its Impact on Sentinel Lymph Node Surgery: Results From the American College of Surgeons Oncology Group Z1071 Trial (Alliance)

    PubMed Central

    Boughey, Judy C.; Ballman, Karla V.; Hunt, Kelly K.; McCall, Linda M.; Mittendorf, Elizabeth A.; Ahrendt, Gretchen M.; Wilke, Lee G.; Le-Petross, Huong T.

    2015-01-01

    Purpose The American College of Surgeons Oncology Group Z1071 trial reported a 12.6% false-negative rate (FNR) for sentinel lymph node (SLN) surgery after neoadjuvant chemotherapy (NAC) in cN1 disease. Patients were not selected for surgery based on response, but a secondary end point was to determine whether axillary ultrasound (AUS) after NAC after fine-needle aspiration cytology can identify abnormal nodes and guide patient selection for SLN surgery. Patients and Methods Patients with T0-4, N1-2, M0 breast cancer underwent AUS after neoadjuvant chemotherapy. AUS images were centrally reviewed and classified as normal or suspicious lymph nodes. AUS findings were tested for association with pathologic nodal status and SLN FNR. The impact of AUS results to select patients for SLN surgery to reduce the FNR was assessed. Results Postchemotherapy AUS images were reviewed for 611 patients. One hundred thirty (71.8%) of 181 AUS-suspicious patients were node positive at surgery compared with 243 (56.5%) of 430 AUS-normal patients (P < .001). Patients with AUS-suspicious nodes had a greater number of positive nodes and greater metastasis size (P < .001). The SLN FNR was not different based on AUS results; however, using a strategy where only patients with normal AUS undergo SLN surgery would potentially reduce the FNR in Z1071 patients with ≥ two SLNs removed from 12.6% to 9.8% when preoperative AUS results are considered as part of SLN surgery. Conclusion AUS is recommended after chemotherapy to guide axillary surgery. An FNR of 9.8% with the combination of AUS and SLN surgery would be acceptable for the adoption of SLN surgery for women with node-positive breast cancer treated with neoadjuvant chemotherapy. PMID:25646192

  3. Axillary Ultrasound After Neoadjuvant Chemotherapy and Its Impact on Sentinel Lymph Node Surgery: Results From the American College of Surgeons Oncology Group Z1071 Trial (Alliance).

    PubMed

    Boughey, Judy C; Ballman, Karla V; Hunt, Kelly K; McCall, Linda M; Mittendorf, Elizabeth A; Ahrendt, Gretchen M; Wilke, Lee G; Le-Petross, Huong T

    2015-10-20

    The American College of Surgeons Oncology Group Z1071 trial reported a 12.6% false-negative rate (FNR) for sentinel lymph node (SLN) surgery after neoadjuvant chemotherapy (NAC) in cN1 disease. Patients were not selected for surgery based on response, but a secondary end point was to determine whether axillary ultrasound (AUS) after NAC after fine-needle aspiration cytology can identify abnormal nodes and guide patient selection for SLN surgery. Patients with T0-4, N1-2, M0 breast cancer underwent AUS after neoadjuvant chemotherapy. AUS images were centrally reviewed and classified as normal or suspicious lymph nodes. AUS findings were tested for association with pathologic nodal status and SLN FNR. The impact of AUS results to select patients for SLN surgery to reduce the FNR was assessed. Postchemotherapy AUS images were reviewed for 611 patients. One hundred thirty (71.8%) of 181 AUS-suspicious patients were node positive at surgery compared with 243 (56.5%) of 430 AUS-normal patients (P < .001). Patients with AUS-suspicious nodes had a greater number of positive nodes and greater metastasis size (P < .001). The SLN FNR was not different based on AUS results; however, using a strategy where only patients with normal AUS undergo SLN surgery would potentially reduce the FNR in Z1071 patients with ≥ two SLNs removed from 12.6% to 9.8% when preoperative AUS results are considered as part of SLN surgery. AUS is recommended after chemotherapy to guide axillary surgery. An FNR of 9.8% with the combination of AUS and SLN surgery would be acceptable for the adoption of SLN surgery for women with node-positive breast cancer treated with neoadjuvant chemotherapy. © 2015 by American Society of Clinical Oncology.

  4. Artificial urinary sphincter

    PubMed Central

    Martins, Francisco E.

    2017-01-01

    Although currently still the gold standard treatment for post-prostatectomy urinary incontinence, the artificial urinary sphincter (AUS) (AMS800) is an invasive procedure with associated risks factors. In this paper, we aim to outline what the scientific literature and what we personally believe are the factors that are useful and/or necessary to mitigate these risks, including both patient factors and surgeon factors. We also review special populations, including transcorporal (TC) AUS approach, AUS with inflatable penile prosthesis, AUS after male urethral sling, AUS erosion management, and AUS after orthotopic urinary diversion. PMID:28904901

  5. Spectrum of risk of malignancy in subcategories of 'atypia of undetermined significance'.

    PubMed

    Olson, Matthew T; Clark, Douglas P; Erozan, Yener S; Ali, Syed Z

    2011-01-01

    To determine if focal 'nuclear atypia' or 'microfollicular architecture' portends a higher risk of malignancy than other subcategories of atypia of undetermined significance (AUS) in thyroid fine-needle aspirations (FNAs). The frequencies of The Bethesda System for Reporting Thyroid Cytopathology (TBSRTC) categories were calculated from 3,956 thyroid FNAs interpreted over a 26-month period at The Johns Hopkins Hospital after adoption of TBSRTC. TBSRTC criteria were applied strictly. The risk of malignancy, specifically for AUS subcategories, was analyzed by cyto-histo correlation. Of the 133 cases diagnosed as AUS, 32% were found to have stageable carcinoma (not incidental microcarcinoma) on resection. When the subset of AUS with 'nuclear atypia' (AUS-N) was separated from other AUS cases, 48% (30/62) of them had stageable carcinoma on resection; of the AUS subset with 'microfollicular architecture' (AUS-F), 27% (8/30) were malignant on resection. The 'suspicious for papillary thyroid carcinoma' (SPTC) group maintained a higher risk of malignancy versus AUS-N (relative risk, RR 1.57; 95% CI 1.23-1.81). The subcategory of 'nuclear atypia' within AUS indicates a higher risk of malignancy than other subcategories of AUS but has a lower risk of malignancy than SPTC does. Thus, it is an important distinction with potential clinical implications. Copyright © 2011 S. Karger AG, Basel.

  6. The contributions of solar ultraviolet radiation exposure and other determinants to serum 25-hydroxyvitamin D concentrations in Australian adults: the AusD Study.

    PubMed

    Kimlin, Michael G; Lucas, Robyn M; Harrison, Simone L; van der Mei, Ingrid; Armstrong, Bruce K; Whiteman, David C; Kricker, Anne; Nowak, Madeleine; Brodie, Alison M; Sun, Jiandong

    2014-04-01

    The Quantitative Assessment of Solar UV [ultraviolet] Exposure for Vitamin D Synthesis in Australian Adults (AusD) Study aimed to better define the relationship between sun exposure and serum 25-hydroxyvitamin D (25(OH)D) concentration. Cross-sectional data were collected between May 2009 and December 2010 from 1,002 participants aged 18-75 years in 4 Australian sites spanning 24° of latitude. Participants completed the following: 1) questionnaires on sun exposure, dietary vitamin D intake, and vitamin D supplementation; 2) 10 days of personal ultraviolet radiation dosimetry; 3) a sun exposure and physical activity diary; and 4) clinical measurements and blood collection for 25(OH)D determination. Our multiple regression model described 40% of the variance in 25(OH)D concentration; modifiable behavioral factors contributed 52% of the explained variance, and environmental and demographic or constitutional variables contributed 38% and 10%, respectively. The amount of skin exposed was the single strongest contributor to the explained variance (27%), followed by location (20%), season (17%), personal ultraviolet radiation exposure (8%), vitamin D supplementation (7%), body mass index (weight (kg)/height (m)(2)) (4%), and physical activity (4%). Modifiable behavioral factors strongly influence serum 25(OH)D concentrations in Australian adults. In addition, latitude was a strong determinant of the relative contribution of different behavioral factors.

  7. Zebrafish aussicht mutant embryos exhibit widespread overexpression of ace (fgf8) and coincident defects in CNS development.

    PubMed

    Heisenberg, C P; Brennan, C; Wilson, S W

    1999-05-01

    During the development of the zebrafish nervous system both noi, a zebrafish pax2 homolog, and ace, a zebrafish fgf8 homolog, are required for development of the midbrain and cerebellum. Here we describe a dominant mutation, aussicht (aus), in which the expression of noi and ace is upregulated. In aus mutant embryos, ace is upregulated at many sites in the embryo, while noi expression is only upregulated in regions of the forebrain and midbrain which also express ace. Subsequent to the alterations in noi and ace expression, aus mutants exhibit defects in the differentiation of the forebrain, midbrain and eyes. Within the forebrain, the formation of the anterior and postoptic commissures is delayed and the expression of markers within the pretectal area is reduced. Within the midbrain, En and wnt1 expression is expanded. In heterozygous aus embryos, there is ectopic outgrowth of neural retina in the temporal half of the eyes, whereas in putative homozygous aus embryos, the ventral retina is reduced and the pigmented retinal epithelium is expanded towards the midline. The observation that aus mutant embryos exhibit widespread upregulation of ace raised the possibility that aus might represent an allele of the ace gene itself. However, by crossing carriers for both aus and ace, we were able to generate homozygous ace mutant embryos that also exhibited the aus phenotype. This indicated that aus is not tightly linked to ace and is unlikely to be a mutation directly affecting the ace locus. However, increased Ace activity may underly many aspects of the aus phenotype and we show that the upregulation of noi in the forebrain of aus mutants is partially dependent upon functional Ace activity. Conversely, increased ace expression in the forebrain of aus mutants is not dependent upon functional Noi activity. We conclude that aus represents a mutation involving a locus normally required for the regulation of ace expression during embryogenesis.

  8. Genetic and molecular characterization of leaf rust resistance in two durum landraces against the durum- specific Puccinia triticina races

    USDA-ARS?s Scientific Manuscript database

    The Portuguese durum landraces, Aus26582 and Aus26579, showed resistance against two very different durum-specific Puccinia triticina (Pt) races CA 1.2 and ETH 12.5-2 collected from California and Ethiopia, respectively. Aus26582 and Aus26579 were crossed with a susceptible landrace Bansi to develop...

  9. The accuracy of preoperative axillary nodal staging in primary breast cancer by ultrasound is modified by nodal metastatic load and tumor biology

    PubMed Central

    Dihge, Looket; Grabau, Dorthe A.; Rasmussen, Rogvi W.; Bendahl, Pär-Ola; Rydén, Lisa

    2016-01-01

    Abstract Background The outcome of axillary ultrasound (AUS) with fine-needle aspiration biopsy (FNAB) in the diagnostic work-up of primary breast cancer has an impact on therapy decisions. We hypothesize that the accuracy of AUS is modified by nodal metastatic burden and clinico-pathological characteristics. Material and methods The performance of AUS and AUS-guided FNAB for predicting nodal metastases was assessed in a prospective breast cancer cohort subjected for surgery during 2009–2012. Predictors of accuracy were included in multivariate analysis. Results AUS had a sensitivity of 23% and a specificity of 95%, while AUS-guided FNAB obtained 73% and 100%, respectively. AUS-FNAB exclusively detected macro-metastases (median four metastases) and identified patients with more extensive nodal metastatic burden in comparison with sentinel node biopsy. The accuracy of AUS was affected by metastatic size (OR 1.11), obesity (OR 2.46), histological grade (OR 4.43), and HER2-status (OR 3.66); metastatic size and histological grade were significant in the multivariate analysis. Conclusions The clinical utility of AUS in low-risk breast cancer deserves further evaluation as the accuracy decreased with a low nodal metastatic burden. The diagnostic performance is modified by tumor and clinical characteristics. Patients with nodal disease detected by AUS-FNAB represent a group for whom neoadjuvant therapy should be considered. PMID:27050668

  10. A comparison of the diagnostic accuracy of magnetic resonance imaging to axillary ultrasound in the detection of axillary nodal metastases in newly diagnosed breast cancer.

    PubMed

    Assing, Matthew A; Patel, Bhavika K; Karamsadkar, Neel; Weinfurtner, Jared; Usmani, Omar; Kiluk, John V; Drukteinis, Jennifer S

    2017-11-01

    Patients with a diagnosis of invasive breast cancer are increasingly undergoing breast magnetic resonance imaging (MRI) for preoperative staging including evaluation of axillary lymph node metastases (ALNM). This retrospective study aims to evaluate the utility of adding axillary ultrasound (AUS) in the preoperative setting when an MRI is planned or has already been performed. This IRB approved, HIPAA compliant study reviewed a total of 271 patients with a new diagnosis of invasive breast cancer at a single institution, between June 1, 2010 and June 30, 2013. The study included patients who received both AUS and MRI for preoperative staging. Data were divided into two cohorts, patients who underwent MRI prior to AUS and those who underwent AUS prior to MRI. AUS and MRI reports were categorized according to BI-RADS criteria as "suspicious" or "not suspicious" for ALNM. In the setting of a negative MRI and subsequent positive AUS, only one out of 25 cases (4%) were positive for metastases after correlating with histologic pathology. MRI detected metastatic disease in four out of 27 (15%) patients who had false-negative AUS performed prior to MRI. Our results indicate the addition of AUS after preoperative MRI does not contribute significantly to increased detection of missed disease. MRI could serve as the initial staging imaging method of the axilla in the setting that AUS is not initially performed and may be valuable in identification of lymph nodes not identified on AUS. © 2017 Wiley Periodicals, Inc.

  11. Axillary Ultrasound Accurately Excludes Clinically Significant Lymph Node Disease in Patients with Early Stage Breast Cancer

    PubMed Central

    Tucker, Natalia S.; Cyr, Amy E.; Ademuyiwa, Foluso O.; Tabchy, Adel; George, Krystl; Sharma, Piyush; Jin, Linda X.; Sanati, Souzan; Aft, Rebecca; Gao, Feng; Margenthaler, Julie A.; Gillanders, William E.

    2016-01-01

    Objective Assess the performance characteristics of axillary ultrasound (AUS) for accurate exclusion of clinically significant axillary lymph node (ALN) disease. Background Sentinel lymph node biopsy (SLNB) is currently the standard of care for staging the axilla in patients with clinical T1–T2, N0 breast cancer. AUS is a noninvasive alternative to SLNB for staging the axilla. Methods Patients were identified using a prospectively maintained database. Sensitivity, specificity, and negative predictive value (NPV) were calculated by comparing AUS findings to pathology results. Multivariate analyses were performed to identify patient and/or tumor characteristics associated with false negative (FN) AUS. A blinded review of FN and matched true negative cases was performed by two independent medical oncologists to compare treatment recommendations and actual treatment received. Recurrence-free survival was described using Kaplan-Meier product limit methods. Results 647 patients with clinical T1–T2, N0 breast cancer underwent AUS between January, 2008 and March, 2013. AUS had a sensitivity of 70%, NPV of 84% and PPV of 56% for the detection of ALN disease. For detection of clinically significant disease (> 2.0 mm), AUS had a sensitivity of 76% and NPV of 89%. FN AUS did not significantly impact adjuvant medical decision making. Patients with FN AUS had recurrence-free survival equivalent to patients with pathologic N0 disease. Conclusions AUS accurately excludes clinically significant ALN disease in patients with clinical T1–T2, N0 breast cancer. AUS may be an alternative to SLNB in these patients where axillary surgery is no longer considered therapeutic, and predictors of tumor biology are increasingly used to make adjuvant therapy decisions. PMID:26779976

  12. Indications for axillary ultrasound use in breast cancer patients.

    PubMed

    Joh, Jennifer E; Han, Gang; Kiluk, John V; Laronga, Christine; Khakpour, Nazanin; Lee, M Catherine

    2012-12-01

    Axillary ultrasound has been adopted for preoperative planning in breast cancer. Our objective was to determine features predictive of abnormal AUS and/or positive axillary node needle biopsy (NBx). Single-institution database of breast cancer patients identified patients with preoperative AUS. Patient characteristics and outcomes were correlated with AUS and NBx. Significant features were identified using univariable and multivariable analysis and correlative statistics. Three hundred thirteen breast cancers were evaluated. Abnormal AUS was demonstrated in 250 cases (80%). Node needle biopsy was performed in 247 cases (79%). Sensitivity and specificity was 93% and 48% for AUS and 86% and 100% for NBx, respectively. Palpable axillary adenopathy was significant in logistic regression model (P < .05). There were positive correlations between tumor grade, clinical T and tumor-node-metastasis stage, invasive ductal carcinoma histology, and inflammatory breast carcinoma with AUS and NBx (P < .05). Clinicopathologic features (grade, histology, tumor size) might help guide judicious use of AUS. Copyright © 2012 Elsevier Inc. All rights reserved.

  13. Lifetime cost of stroke subtypes in Australia: findings from the North East Melbourne Stroke Incidence Study (NEMESIS).

    PubMed

    Dewey, Helen M; Thrift, Amanda G; Mihalopoulos, Cathy; Carter, Robert; Macdonell, Richard A L; McNeil, John J; Donnan, Geoffrey A

    2003-10-01

    Little is known about any variations in resource use and costs of care between stroke subtypes, especially nonhospital costs. The purpose of this study was to describe the patterns of resource use and to estimate the first-year and lifetime costs for stroke subtypes. A cost-of-illness model was used to estimate the total first-year costs and lifetime costs of stroke subtypes for all strokes (subarachnoid hemorrhages excluded) that occurred in Australia during 1997. For each subtype, average cost per case during the first year and the present value of average cost per case over a lifetime were calculated. Resource use data obtained in the North East Melbourne Stroke Incidence Study (NEMESIS) were used. The present value of total lifetime costs for all strokes was Aus 1.3 billion dollars (US 985 million dollars). Total lifetime costs were greatest for ischemic stroke (72%; Aus 936.8 million dollars; US 709.7 million dollars), followed by intracerebral hemorrhage (26%; Aus 334.5 million dollars; US 253.4 million dollars) and unclassified stroke (2%; Aus 30 million dollars; US 22.7 million dollars). The average cost per case during the first year was greatest for total anterior circulation infarction (Aus 28 266 dollars). Over a lifetime, the present value of average costs was greatest for intracerebral hemorrhage (Aus 73 542 dollars), followed by total anterior circulation infarction (Aus 53 020 dollars), partial anterior circulation infarction (Aus 50 692 dollars), posterior circulation infarction (Aus 37 270 dollars), lacunar infarction (Aus 34 470 dollars), and unclassified stroke (Aus 12 031 dollars). First-year and lifetime costs vary considerably between stroke subtypes. Variation in average length of total hospital stay is the main explanation for differences in first-year costs.

  14. Crystallization and preliminary crystallographic analysis of latent, active and recombinantly expressed aurone synthase, a polyphenol oxidase, from Coreopsis grandiflora

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Molitor, Christian; Mauracher, Stephan Gerhard; Rompel, Annette, E-mail: annette.rompel@univie.ac.at

    2015-05-22

    Latent and active aurone synthase purified from petals of C. grandiflora (cgAUS1) were crystallized. The crystal quality of recombinantly expressed latent cgAUS1 was significantly improved by co-crystallization with the polyoxotungstate Na{sub 6}[TeW{sub 6}O{sub 24}] within the liquid–liquid phase-separation zone. Aurone synthase (AUS), a member of a novel group of plant polyphenol oxidases (PPOs), catalyzes the oxidative conversion of chalcones to aurones. Two active cgAUS1 (41.6 kDa) forms that differed in the level of phosphorylation or sulfation as well as the latent precursor form (58.9 kDa) were purified from the petals of Coreopsis grandiflora. The differing active cgAUS1 forms and themore » latent cgAUS1 as well as recombinantly expressed latent cgAUS1 were crystallized, resulting in six different crystal forms. The active forms crystallized in space groups P2{sub 1}2{sub 1}2{sub 1} and P12{sub 1}1 and diffracted to ∼1.65 Å resolution. Co-crystallization of active cgAUS1 with 1,4-resorcinol led to crystals belonging to space group P3{sub 1}21. The crystals of latent cgAUS1 belonged to space group P12{sub 1}1 and diffracted to 2.50 Å resolution. Co-crystallization of recombinantly expressed pro-AUS with the hexatungstotellurate(VI) salt Na{sub 6}[TeW{sub 6}O{sub 24}] within the liquid–liquid phase separation zone significantly improved the quality of the crystals compared with crystals obtained without hexatungstotellurate(VI)« less

  15. Lithospheric scale conductivity anomalies at the Proterozoic-Phanerozoic transition of Australia- Insights from AusLAMP MT data

    NASA Astrophysics Data System (ADS)

    Robertson, K. E.; Thiel, S.; Heinson, G. S.

    2017-12-01

    The intraplate deformation of the north-south trending Neoproterozoic Ikara-Flinders Ranges in South Australia, Australia, draws interest due to its high heat flow, elevated seismicity and the presence of diamondiferous kimberlites and mineral deposits. To the west lies the highly prospective Archean-Paleoproterozoic Gawler Craton, boasting the world's largest IOCG-U deposit, Olympic Dam. The Paleo-Mesoproterozoic Curnamona Province lies to the east, thought to have once been connected to the Gawler Craton and host to the world-class Broken Hill Ag-Pb-Zn deposit. A total of 162 long-period (10 s - 10,000 s) magnetotelluric (MT) stations from the Australia-wide AusLAMP (Australian Lithospheric Architecture Magnetotelluric Project) dataset were used to image the electrical resistivity beneath the Ikara-Flinders Ranges and adjacent Curnamona Province. The most recent acquisition extends this survey region northward to an area predominantly covered with Paleo-Mesozoic sedimentary basins including the most significant on-shore oil and gas region in Australia, the Cooper Basin. The resultant model from 3D inversions using ModEM software shows a relatively resistive Ikara-Flinders Ranges, with two parallel arcuate conductors (the WNAC and ENAC) at 20 to 80 km depth in the Nackara Arc. These conductors correlate well with locations of diamondiferous kimberlites which suggests that the conductors may have derived from the ascent of carbon-rich kimberlite-hosting magma and volatiles up large lithospheric scale structures. The conductors appear to have no correlation with regions of intraplate seismicity within the Ikara-Flinders Ranges which may mean that enhanced pore fluid pressure is not the main cause for the seismicity as was recently proposed. A large conductor covering most of the Curnamona Province (the CC) extends over depths of 10-40 km. The Curnamona Province's most recent tectonothermal activity is from Delamerian reworking during the Cambrian at its margins but

  16. Novel management approach to connecting tube erosion of artificial urinary sphincter.

    PubMed

    Boateng, Akwasi A; Mohamed, Mahmoud A; Mahdy, Ayman E

    2014-04-01

    Artificial urinary sphincter (AUS) erosion often involve the urethral cuff and is managed by complete or partial device removal. Abdominal wall erosion of AUS tubing has not been previously reported and its management is unknown. We report tube erosion (TE) of AUS successfully managed without device explant. An 81-year-old male with AUS for post-prostatectomy incontinence presented with TE at the site of inguinal incision without signs or symptoms of infection. The exposed tube was reduced and wound was closed after copious antibiotic solution irrigation. No complications were noted at 2 month follow up. AUS-TE can be successfully managed conservatively with antiseptic wound site irrigation and reinsertion in absence of infection.

  17. Thyroid cytopathology with an emphasis on the 'atypical cells of uncertain significance' category: a 3-year audit with cytohistologic correlation.

    PubMed

    Fatman, Luvo; Michelow, Pamela

    2015-01-01

    The National Cancer Institute meeting of 2007 resulted in the reporting terminology for thyroid cytopathology. The Bethesda System for Reporting Thyroid Cytopathology (TBSRTC) aims to standardise thyroid cytopathology reporting for cytology centres and clinicians alike. To compare our laboratory's performance against TBSRTC. The second aim was to determine our laboratory's atypia of undetermined significance/follicular cells of undetermined significance (AUS/FLUS) reporting rate and malignant outcomes. Our laboratory subclassifies the AUS/FLUS category into AUS/FLUS not otherwise specified (NOS) and AUS/FLUS cannot exclude malignancy. All thyroid reports were retrieved from our computerised database for the period of January 1, 2008 to March 31, 2011. Histologic correlation was obtained where available, and cases were classified according to their original diagnosis into 1 of the 6 categories of TBSRTC. A total of 1,767 cases were retrieved. The categories were as follows: inadequate (n=415; 23%), benign (n=1,063; 60%), AUS/FLUS (n=141; 8%) [NOS (n=93; 5%) and cannot exclude malignancy (n=48; 3%)] suspicious for follicular/Hürthle cell neoplasm (n=68; 4%), suspicious for malignancy (n=37; 2%) and malignant (n=43; 2%). The malignant rates for the categories were as follows: -6 (26%), 0 (0%), 8 (40%), 9 (38%), 11 (42%), 15 (62.5%), and 15 (94%), respectively. We have shown that the AUS category carries a higher malignant rate than that of the AUS category in TBSRTC of 5-15%. We conclude that subclassifying the AUS/FLUS category into NOS and cannot exclude malignancy helps to better identify patients with an increased risk of malignancy in the AUS/FLUS cannot exclude malignancy category. © 2015 S. Karger AG, Basel.

  18. Ecological relevance of current water quality assessment unit designations in impaired rivers

    USGS Publications Warehouse

    Layhee, Megan J.; Sepulveda, Adam; Ray, Andrew; Mladenka, Greg; Van Every, Lynn

    2016-01-01

    Managers often nest sections of water bodies together into assessment units (AUs) to monitor and assess water quality criteria. Ideally, AUs represent an extent of waters with similar ecological, watershed, habitat and land-use conditions and no overlapping characteristics with other waters. In the United States, AUs are typically based on political or hydrologic boundaries rather than on ecologically relevant features, so it can be difficult to detect changes in impairment status. Our goals were to evaluate if current AU designation criteria of an impaired water body in southeastern Idaho, USA that, like many U.S. waters, has three-quarters of its mainstem length divided into two AUs. We focused our evaluation in southeastern Idaho's Portneuf River, an impaired river and three-quarters of the river is divided into two AUs. We described biological and environmental conditions at multiple reaches within each AU. We used these data to (1) test if variability at the reach-scale is greater within or among AUs and, (2) to evaluate alternate AU boundaries based on multivariate analyses of reach-scale data. We found that some biological conditions had greater variability within an AU than between AUs. Multivariate analyses identified alternative, 2- and 3-group, AUs that reduced this variability. Our results suggest that the current AU designations in the mainstem Portneuf River contain ecologically distinct sections of river and that the existing AU boundaries should be reconsidered in light of the ecological conditions measured at the reach scale. Variation in biological integrity within designated AUs may complicate water quality and biological assessments, influence management decisions or affect where monitoring or mitigation resources are directed.

  19. Comparison of complication rates related to male urethral slings and artificial urinary sphincters for urinary incontinence: national multi-institutional analysis of ACS-NSQIP database.

    PubMed

    Alwaal, Amjad; Harris, Catherine R; Awad, Mohannad A; Allen, Isabel E; Breyer, Benjamin N

    2016-10-01

    Male stress urinary incontinence (SUI) can significantly diminish quality of life and lead to embarrassment and social withdrawal. Surgical therapies, such as male urethral slings and artificial urinary sphincters (AUS), are considered effective and safe treatments for male SUI. Our objective is to evaluate 30-day complications in patients undergoing male slings and AUS placement from a national multicenter database. Data from the American College of Surgeons National Surgical Quality of Improvement Program for 2008-2013 were used to identify patients who underwent male slings and AUS implantation. Trained coders abstracted complication data from the patient record independent of the surgical team. We compared 30-day postoperative complications for male slings and AUS. We examined the relationship between patient factors and complication rates for each procedure type. Overall, 1205 incontinence surgeries in men were identified: 597 male sling placements and 608 AUS implantations. Male sling placement had a lower 30-day postoperative complication rate compared to AUS (2.8 vs. 5.1 %, p = 0.046). Compared to AUS, male sling was associated with fewer urinary tract infections (0.3 vs. 2.0 %, p = 0.020) and return trips to the operating room (1.0 vs. 3.0 %, p < 0.001). Patients with higher BMI were more likely to have a complication, while age, race and Charlson comorbidity index were not associated with higher or lower complication rates. Complications rates for both male sling and AUS are low. Male sling is associated with a lower rate of complications than AUS. These findings allow for better patient perioperative counseling regarding 30-day perioperative complications.

  20. Stress urinary incontinence in female neurological patients: long-term functional outcomes after artificial urinary sphincter (AMS 800TM ) implantation.

    PubMed

    Phé, Véronique; Léon, Priscilla; Granger, Benjamin; Denys, Pierre; Bitker, Marc-Olivier; Mozer, Pierre; Chartier-Kastler, Emmanuel

    2017-03-01

    To report the long-term functional outcomes of artificial urinary sphincter (AUS) implantation in female adult neurological patients suffering from stress urinary incontinence (SUI) due to sphincter deficiency. Female patients with neurological disease suffering from SUI due to sphincter deficiency who underwent AUS (AMS 800 TM ) implantation between 1984 and 2011 were included. Continence rate defined as no need for pads and survival rates of the device without needing explantation or revision using Kaplan-Meier curves were reported. Overall, 26 patients, median age 49.2 years (IQR 28.5-59.7) were included. The median follow-up time was 7.5 years (IQR 3.9-23.8). At the end of follow-up period, 15 patients (57.7%) still had their primary AUS. The AUS was explanted in five women because of infection or erosion. Survival rates, without AUS explantation were 90%, 84%, 84%, and 74% at 5, 10, 15, 20 years, respectively. Survival rates without AUS revision were 75%, 51%, 51%, and 51% at 5, 10, 15, 20 years, respectively. 71.4% of patients with AUS were continent. When considering the 26 initial patients, including the patients in whom the AUS was explanted, the continence rate was 57.7%. For treating neurogenic sphincter deficiency in the long term, the AMS 800 TM can offer a satisfying rate of continence to female patients, with a tolerable rate of explantation and revision. Neurourol. Urodynam. 36:764-769, 2017. © 2016 Wiley Periodicals, Inc. © 2016 Wiley Periodicals, Inc.

  1. Evaluation of uterine ultrasound imaging in cervical radiotherapy; a comparison of autoscan and conventional probe

    PubMed Central

    Cooper, David T; Behrens, Claus F

    2016-01-01

    Objective: In cervical radiotherapy, it is essential that the uterine position is correctly determined prior to treatment delivery. The aim of this study was to evaluate an autoscan ultrasound (A-US) probe, a motorized transducer creating three-dimensional (3D) images by sweeping, by comparing it with a conventional ultrasound (C-US) probe, where manual scanning is required to acquire 3D images. Methods: Nine healthy volunteers were scanned by seven operators, using the Clarity® system (Elekta, Stockholm, Sweden). In total, 72 scans, 36 scans from the C-US and 36 scans from the A-US probes, were acquired. Two observers delineated the uterine structure, using the software-assisted segmentation in the Clarity workstation. The data of uterine volume, uterine centre of mass (COM) and maximum uterine lengths, in three orthogonal directions, were analyzed. Results: In 53% of the C-US scans, the whole uterus was captured, compared with 89% using the A-US. F-test on 36 scans demonstrated statistically significant differences in interobserver COM standard deviation (SD) when comparing the C-US with the A-US probe for the inferior–superior (p < 0.006), left–right (p < 0.012) and anteroposterior directions (p < 0.001). The median of the interobserver COM distance (Euclidean distance for 36 scans) was reduced from 8.5 (C-US) to 6.0 mm (A-US). An F-test on the 36 scans showed strong significant differences (p < 0.001) in the SD of the Euclidean interobserver distance when comparing the C-US with the A-US scans. The average Dice coefficient when comparing the two observers was 0.67 (C-US) and 0.75 (A-US). The predictive interval demonstrated better interobserver delineation concordance using the A-US probe. Conclusion: The A-US probe imaging might be a better choice of image-guided radiotherapy system for correcting for daily uterine positional changes in cervical radiotherapy. Advances in knowledge: Using a novel A-US probe might reduce the uncertainty in

  2. Evaluation of uterine ultrasound imaging in cervical radiotherapy; a comparison of autoscan and conventional probe.

    PubMed

    Baker, Mariwan; Cooper, David T; Behrens, Claus F

    2016-10-01

    In cervical radiotherapy, it is essential that the uterine position is correctly determined prior to treatment delivery. The aim of this study was to evaluate an autoscan ultrasound (A-US) probe, a motorized transducer creating three-dimensional (3D) images by sweeping, by comparing it with a conventional ultrasound (C-US) probe, where manual scanning is required to acquire 3D images. Nine healthy volunteers were scanned by seven operators, using the Clarity(®) system (Elekta, Stockholm, Sweden). In total, 72 scans, 36 scans from the C-US and 36 scans from the A-US probes, were acquired. Two observers delineated the uterine structure, using the software-assisted segmentation in the Clarity workstation. The data of uterine volume, uterine centre of mass (COM) and maximum uterine lengths, in three orthogonal directions, were analyzed. In 53% of the C-US scans, the whole uterus was captured, compared with 89% using the A-US. F-test on 36 scans demonstrated statistically significant differences in interobserver COM standard deviation (SD) when comparing the C-US with the A-US probe for the inferior-superior (p < 0.006), left-right (p < 0.012) and anteroposterior directions (p < 0.001). The median of the interobserver COM distance (Euclidean distance for 36 scans) was reduced from 8.5 (C-US) to 6.0 mm (A-US). An F-test on the 36 scans showed strong significant differences (p < 0.001) in the SD of the Euclidean interobserver distance when comparing the C-US with the A-US scans. The average Dice coefficient when comparing the two observers was 0.67 (C-US) and 0.75 (A-US). The predictive interval demonstrated better interobserver delineation concordance using the A-US probe. The A-US probe imaging might be a better choice of image-guided radiotherapy system for correcting for daily uterine positional changes in cervical radiotherapy. Using a novel A-US probe might reduce the uncertainty in interoperator variability during ultrasound scanning.

  3. Laparoscopic implantation of an artificial urinary sphincter around the prostatic urethra

    PubMed Central

    Chłosta, Piotr; Aboumarzouk, Omar; Bondad, Jasper; Szopiński, Tomasz; Korzelik, Ignacy; Borówka, Andrzej

    2015-01-01

    Objective To report the first laparoscopic periprostatic implantation of an artificial urinary sphincter (AUS) after a transurethral resection of the prostate. Background The implantation of an AUS is a standard procedure for severe urinary incontinence. In men it is usually implanted through a perineal approach, with the cuff placed around the bulbous urethra, bladder neck, or even around the prostate. Method We report a laparoscopic periprostatic implantation of an AUS after a transurethral resection of a prostate in a 72-year-old-man with incontinence. Results The operative duration was 180 min and the blood loss was 150 mL. There were no complications. After activating the AUS the patient was totally continent. Conclusion The laparoscopic periprostatic implantation of an AUS is a safe, effective and considerably less invasive procedure. PMID:26413345

  4. Breast mass characterization using 3D automated ultrasound as an adjunct to digital breast tomosynthesis: A pilot study

    PubMed Central

    Padilla, Frederic; Roubidoux, Marilyn A.; Paramagul, Chintana; Sinha, Sumedha P.; Goodsitt, Mitchell M.; Le Carpentier, Gerald L.; Chan, Heang-Ping; Hadjiiski, Lubomir M.; Fowlkes, Brian J.; Joe, Annette D.; Klein, Katherine A.; Nees, Alexis V.; Noroozian, Mitra; Patterson, Stephanie K.; Pinsky, Renee W.; Hooi, Fong Ming; Carson, Paul L.

    2013-01-01

    Objective To retrospectively evaluate the effect of 3D automated ultrasound (3D-AUS) as an adjunct to digital breast tomosynthesis (DBT) on radiologists’ performance and confidence in discriminating malignant and benign breast masses. Methods Two-view DBT (CC and MLO or Lateral) and single-view 3D-AUS were acquired on 51 patients with (subsequently) biopsy-proven masses (13 malignant, 38 benign). Six experienced radiologists rated, on a 13-point scale, the likelihood of malignancy of an identified mass, first by reading the DBT alone, followed immediately by reading the DBT with automatically co-registered 3D-AUS. The diagnostic performance of each method was measured using ROC analysis. and changes in sensitivity and specificity with the McNemar test. After each reading, radiologists took a survey to rate their confidence level in using DBT alone vs combined DBT/3D-AUS as potential screening modalities. Results The six radiologists had an average area under the ROC curve of 0.92 for both modalities (range 0.89–0.97 for DBT, 0.90–0.94 for DBT/3D-AUS). With BI-RADS rating of 4 as the threshold for biopsy recommendation, the average sensitivity of the radiologists increased from 96% to 100% (p>0.08) with 3D-AUS, while the specificity decreased from 33% to 25% (p>0.28). Survey responses indicated an increased confidence in potentially using DBT for screening when 3D-AUS was added (p<0.05 for each reader). Conclusions In this initial reader study, no significant difference in ROC performance was found with the addition of 3D-AUS to DBT. However, a trend to an improved discrimination of malignancy was observed when adding 3D-AUS. Radiologists’ confidence also improved with DBT/3DAUS compared to DBT alone. PMID:23269714

  5. Survey of cytopathologists and cytotechnologists for the clinical impact of the use of atypia or follicular lesion of undetermined significance.

    PubMed

    Nassar, Aziza; Reynolds, Jordan P; Kerr, Sarah E; Jenkins, Sarah M; Lackore, Kandace A; Bernet, Victor

    2015-01-01

    The cytologic diagnosis of atypia of undetermined significance or follicular lesion of undetermined significance (AUS/FLUS) is controversial because of variation in how it is applied in practice, as well as uncertainty about patient management. We aimed to assess the percentage of thyroid fine-needle aspiration biopsies (FNABs) with AUS/FLUS diagnoses in different North American and European practice settings (e.g. community, academic, etc.), assess whether patients were managed according to current guidelines, and determine patient outcomes. A detailed questionnaire survey was posted in secure websites used separately by cytopathologists and cytotechnologists. The questionnaire was posted from August 1 through December 31, 2013. Endocrinologists and cytopathologists performed 51.7% and 37.1% of thyroid FNABs, respectively. The Bethesda reporting system for thyroid FNAB was used in 90% of practices. The rate of AUS/FLUS varied widely among institutions, with 46.1% of represented institutions reporting AUS/FLUS rates of 3-10%. The median follow-up rate of patients with an initial AUS/FLUS diagnosis was 70% (range, 10-100%). For the majority of represented institutions (86.4%), patients with initial AUS/FLUS diagnosis had follow-up with endocrinologists. Of repeat AUS/FLUS thyroid FNABs, a median of 52% was considered benign, and 18% were suspicious of or positive for malignancy (median, 10% and 7.5%, respectively). Reporting of the AUS/FLUS category varied widely among different institutions. The median follow-up rate was lower than published guidelines. The most common follow-up diagnosis was benign thyroid nodule. Improved standardization of cytologic criteria should be adopted to reduce such variation.

  6. AusEinetter, 2000.

    ERIC Educational Resources Information Center

    AusEinetter, 2000

    2000-01-01

    This document contains two issues of 2000 Australian Early Intervention Network for Mental Health in Young People newsletter. The newsletters disseminate information about the national and local initiatives for intervention and prevention of mental health problems in young children and youth. They also provide information on upcoming workshops and…

  7. AusEinetter, 1998.

    ERIC Educational Resources Information Center

    AusEinetter, 1998

    1998-01-01

    This publication contains the 1998 issues of the Australian Early Intervention Network for Mental Health in Young People newsletters for health professionals. The newsletters disseminate information about the national and local initiatives for intervention and prevention of mental health problems in young children and youth. Each issue also offers…

  8. Reinstatement after human feature-positive discrimination learning.

    PubMed

    Franssen, Mathijs; Claes, Nathalie; Vervliet, Bram; Beckers, Tom; Hermans, Dirk; Baeyens, Frank

    2017-04-01

    In two experiments, using an online conditioned suppression task, we investigated the possibility of reinstatement of extinguished feature-target compound presentations after sequential feature-positive discrimination training in humans. Furthermore, given a hierarchical account of Pavlovian modulation (e.g., Bonardi, 1998; Bonardi and Jennings, 2009), we predicted A-US reinstatement to be stronger than US-only reinstatement. In Experiment 1, participants learned a sequential feature-positive discrimination (X→A + |A - ), which was subsequently extinguished (X→A - ). During the following reinstatement phase, group US-only received US-only presentations (not signalled), group A-US received A-US presentations, and the Control group received exposure to the context, but no CSs or USs, for an equal amount of time. Reinstatement of differential X→A/A responding was observed in the US-only group but not in the Control or A-US groups. Although differential X→A/A responding was not significant in group A-US, responding to the X→A compound was significantly stronger compared to that in group US-only. Hence, it could be the case the group A-US showed stronger reinstatement, but that differential responding was abolished due to excitation gained by A. Experiment 2 was set up to circumvent the acquired excitation of A by testing transfer of the feature after A-US reinstatement to a different target, B. Participants acquired two discriminations, X→A/A and Y→B/B, of which X→A was then extinguished. Subsequently, group A-US received reinforced presentations of A during a reinstatement phase while group Control received exposure to the context. Final testing of the novel X→B compound was hypothesized to show higher responding in group A-US than in group Control, but findings of this approach were limited due to acquired equivalence and/or perceptual factors causing a secondary extinction effect. We conclude to have obtained clear evidence in favour of

  9. Management of the axilla in metaplastic breast carcinoma.

    PubMed

    Murphy, Brittany L; Fazzio, Robert T; Hoskin, Tanya L; Glazebrook, Katrina N; Keeney, Michael G; Habermann, Elizabeth B; Hieken, Tina J

    2018-04-01

    Metaplastic breast cancer (MBC), characterized by admixed epithelial, squamous or mesenchymal elements, constitutes <1% of breast cancers and has a poor prognosis but a paradoxically low reported rate of axillary lymph node (LN) involvement. Due to its rarity, data on appropriate axillary management is lacking, prompting this investigation of LN status and outcomes. We identified 41 MBC patients treated at our institution 2001-2011 who were followed for a median of 66 months. Statistical analyses evaluated axillary ultrasound (AUS), fine needle aspiration (FNA), and sentinel LN biopsy (SLNB) in association with LN status. Median tumor size was 2.7 cm and 76% were triple-negative. Twenty-three patients (56%) had preoperative AUS: 9 (39%) showed ≥1 suspicious LN, 6 proceeded to LN FNA and 3 were confirmed positive. Six patients had neoadjuvant chemotherapy, including 2 FNA LN+. Ten patients were LN+ at operation. Among 19 patients undergoing AUS and axillary surgery, AUS ± FNA sensitivity was 100% and specificity was 94%. LN positivity correlated with increasing tumor size, grade and angiolymphatic invasion. 16 patients recurred, 63% with distant disease (10/16) and one with isolated axillary disease after a negative SLNB not preceded by AUS. Overall SLNB accuracy was 96% (23/24), but absent preoperative AUS, 1/7 (14%) of SLNBs were falsely negative. Our study is the first to specifically address the performance and utility of AUS/FNA and SLNB for MBC patients. AUS/FNA at diagnosis followed by SLN surgery provided accurate nodal staging and critical prognostic information to inform treatment recommendations. We recommend this approach for axillary management of MBC patients.

  10. Readiness of pharmacists and consumers for pharmacy-based chlamydia screening in Australia and Switzerland.

    PubMed

    Arnet, Isabelle; Gudka, Sajni; Salter, Sandra; Hersberger, Kurt E; Clifford, Rhonda

    2018-06-01

    To assess chlamydia knowledge, willingness to undertake pharmacy-based chlamydia testing, and facilitators and barriers to such testing in consumers and community pharmacists, in Australia (AUS) and Switzerland (CH). Statements of interest were retrieved from literature and assembled into a 12-item online survey (English and German versions). Survey was disseminated through Facebook, pharmacies' publicly available emails and professional websites (March 2015). Consumers and pharmacists (AUS: n cons  = 198, n pharm  = 162; CH: n cons  = 209, n pharm  = 223) were predominantly female (>65%). Mean chlamydia knowledge scores (maximum of 8) were higher in Australia in consumers (AUS: 6.8 ± 1.5 vs CH: 4.2 ± 2.4; p < 0.001) and in pharmacists (AUS: 7.1 ± 1.1 vs CH: 6.1 ± 1.4; p < 0.001). High willingness of consumers to seek testing (AUS: 79.3% vs CH: 83.3%, p = 0.3) and of pharmacists to provide testing (AUS: 95.7% vs CH: 80.3%, p < 0.001) was observed. Greatest barrier for consumers was "Embarrassed about asking for a test" (AUS: 47.8% vs CH: 51.2%, p = 0.7) and "No remuneration" for pharmacists (AUS: 40.7% vs CH: 31.8%, p = 0.07). The majority of consumers and pharmacists support pharmacy-based chlamydia testing. There is now emerging evidence that the policy makers in Australia and Switzerland need to develop pharmacy-based chlamydia testing as core business. Copyright © 2018 The Authors. Published by Elsevier B.V. All rights reserved.

  11. Survey of cytopathologists and cytotechnologists for the clinical impact of the use of atypia or follicular lesion of undetermined significance

    PubMed Central

    Nassar, Aziza; Reynolds, Jordan P.; Kerr, Sarah E.; Jenkins, Sarah M.; Lackore, Kandace A.; Bernet, Victor

    2015-01-01

    Background: The cytologic diagnosis of atypia of undetermined significance or follicular lesion of undetermined significance (AUS/FLUS) is controversial because of variation in how it is applied in practice, as well as uncertainty about patient management. We aimed to assess the percentage of thyroid fine-needle aspiration biopsies (FNABs) with AUS/FLUS diagnoses in different North American and European practice settings (e.g. community, academic, etc.), assess whether patients were managed according to current guidelines, and determine patient outcomes. Materials and Methods: A detailed questionnaire survey was posted in secure websites used separately by cytopathologists and cytotechnologists. The questionnaire was posted from August 1 through December 31, 2013. Results: Endocrinologists and cytopathologists performed 51.7% and 37.1% of thyroid FNABs, respectively. The Bethesda reporting system for thyroid FNAB was used in 90% of practices. The rate of AUS/FLUS varied widely among institutions, with 46.1% of represented institutions reporting AUS/FLUS rates of 3–10%. The median follow-up rate of patients with an initial AUS/FLUS diagnosis was 70% (range, 10–100%). For the majority of represented institutions (86.4%), patients with initial AUS/FLUS diagnosis had follow-up with endocrinologists. Of repeat AUS/FLUS thyroid FNABs, a median of 52% was considered benign, and 18% were suspicious of or positive for malignancy (median, 10% and 7.5%, respectively). Conclusions: Reporting of the AUS/FLUS category varied widely among different institutions. The median follow-up rate was lower than published guidelines. The most common follow-up diagnosis was benign thyroid nodule. Improved standardization of cytologic criteria should be adopted to reduce such variation. PMID:26195986

  12. Management of the axilla in metaplastic breast carcinoma

    PubMed Central

    Murphy, Brittany L.; Fazzio, Robert T.; Hoskin, Tanya L.; Glazebrook, Katrina N.; Keeney, Michael G.; Habermann, Elizabeth B.

    2018-01-01

    Background Metaplastic breast cancer (MBC), characterized by admixed epithelial, squamous or mesenchymal elements, constitutes <1% of breast cancers and has a poor prognosis but a paradoxically low reported rate of axillary lymph node (LN) involvement. Due to its rarity, data on appropriate axillary management is lacking, prompting this investigation of LN status and outcomes. Methods We identified 41 MBC patients treated at our institution 2001–2011 who were followed for a median of 66 months. Statistical analyses evaluated axillary ultrasound (AUS), fine needle aspiration (FNA), and sentinel LN biopsy (SLNB) in association with LN status. Results Median tumor size was 2.7 cm and 76% were triple-negative. Twenty-three patients (56%) had preoperative AUS: 9 (39%) showed ≥1 suspicious LN, 6 proceeded to LN FNA and 3 were confirmed positive. Six patients had neoadjuvant chemotherapy, including 2 FNA LN+. Ten patients were LN+ at operation. Among 19 patients undergoing AUS and axillary surgery, AUS ± FNA sensitivity was 100% and specificity was 94%. LN positivity correlated with increasing tumor size, grade and angiolymphatic invasion. 16 patients recurred, 63% with distant disease (10/16) and one with isolated axillary disease after a negative SLNB not preceded by AUS. Overall SLNB accuracy was 96% (23/24), but absent preoperative AUS, 1/7 (14%) of SLNBs were falsely negative. Conclusions Our study is the first to specifically address the performance and utility of AUS/FNA and SLNB for MBC patients. AUS/FNA at diagnosis followed by SLN surgery provided accurate nodal staging and critical prognostic information to inform treatment recommendations. We recommend this approach for axillary management of MBC patients. PMID:29770313

  13. Risk Factors for Erosion of Artificial Urinary Sphincters: A Multicenter Prospective Study

    PubMed Central

    Brant, William O.; Erickson, Bradley A.; Elliott, Sean P.; Powell, Christopher; Alsikafi, Nejd; McClung, Christopher; Myers, Jeremy B.; Voelzke, Bryan B.; Smith, Thomas G.; Broghammer, Joshua A.

    2015-01-01

    OBJECTIVE To evaluate the short- to medium-term outcomes after artificial urinary sphincter (AUS) placement from a large, multi-institutional, prospective, follow-up study. We hypothesize that along with radiation, patients with any history of a direct surgery to the urethra will have higher rates of eventual AUS explantation for erosion and/or infection. MATERIALS AND METHODS A prospective outcome analysis was performed on 386 patients treated with AUS placement from April 2009 to December 2012 at 8 institutions with at least 3 months of follow-up. Charts were analyzed for preoperative risk factors and postoperative complications requiring explantation. RESULTS Approximately 50% of patients were considered high risk. High risk was defined as patients having undergone radiation therapy, urethroplasty, multiple treatments for bladder neck contracture or urethral stricture, urethral stent placement, or a history of erosion or infection in a previous AUS. A total of 31 explantations (8.03%) were performed during the follow-up period. Overall explantation rates were higher in those with prior radiation and prior UroLume. Men with prior AUS infection or erosion also had a trend for higher rates of subsequent explantation. Men receiving 3.5-cm cuffs had significantly higher explantation rates than those receiving larger cuffs. CONCLUSION This outcomes study confirms that urethral risk factors, including radiation history, prior AUS erosion, and a history of urethral stent placement, increase the risk of AUS explantation in short-term follow-up. PMID:25109562

  14. Bioindikation im Grundwasser funktioniert - Erwiderung zum Kommentar von T. Scheytt zum Beitrag "Grundwasserfauna als Indikator für komplexe hydrogeologische Verhältnisse am westlichen Kaiserstuhl" von Gutjahr, S., Bork, J. & Hahn, H.J. in Grundwasser 18 (3), 173-184 (2013)

    NASA Astrophysics Data System (ADS)

    Hahn, Hans Jürgen; Gutjahr, Simon

    2014-09-01

    In seinem Kommentar schließt Traugott Scheytt die faunistische Bioindikation über die Nutzung von Grundwassermessstellen aus methodischen Gründen aus. Er postuliert auch, dass die faunistische Indikation hydrogeologischer Zusammenhänge wegen der eingeschränkten Ausbreitungsfähigkeit der Tiere in Porengrundwasserleitern nicht möglich sei und stellt grundsätzlich die Befunde unserer Untersuchungen am Kaiserstuhl in Frage. Dabei überträgt Herr Scheytt seine Erfahrungen aus der unbelebten Hydrogeologie direkt auf den Lebensraum Grundwasser. Seine Argumentation berücksichtigt dabei weder die Prinzipien der Ökologie noch den aktuellen Stand der grundwasserökologischen Forschung. Wir gehen davon aus, dass für die Untersuchungen am Kaiserstuhl sowohl unsere Arbeitshypothese wie auch die angewandten Methoden und die Interpretation der Ergebnisse der Fragestellung angemessen sind und internationalem, wissenschaftlichem Standard entsprechen. Aus den oben benannten Gründen bleiben wir dabei: Biondikation im Grundwasser funktioniert und sie bietet hervorragende Möglichkeiten, gerade auch für die Hydrogeologie.

  15. Differences in utilisation of gastroprotective drugs between 2001 and 2005 in Australia and Nova Scotia, Canada.

    PubMed

    Tett, Susan E; Sketris, Ingrid; Cooke, Charmaine; van Zanten, Sander Veldhuyzen; Barozzi, Nadia

    2013-07-01

    This study aimed to compare use of histamine H2 receptor antagonists (H2RAs) and proton pump inhibitors (PPIs), 2001-2005, in the elderly and social security beneficiaries in Australia (AUS) and Nova Scotia, Canada (NS). Prescription dispensing data were collected for all subsidised H2RAs and PPIs. In AUS, dispensing data for concession beneficiaries were obtained from the Pharmaceutical Benefits Scheme database. In NS, data were sourced from the Pharmacare database. Relevant population data were used to convert to World Health Organisation Anatomic Therapeutic Chemical defined daily doses (2005) per 1000 beneficiaries per day (DDD/1000/day). Overall use of gastroprotective agents was similar and rising in NS and AUS (100-160 DDD/1000/day) over this 5-year time window. However, the proportion of this use accounted for by PPIs was far higher in AUS (over 85% by 2005) than in NS (23% rising to 35% over the 5 years). In AUS, PPI use rose from 50 to about 140 DDD/1000/day over the 5 years, whereas PPI use in NS rose slowly to less than 60 DDD/1000/day by 2005. H2RA use in NS was always high (over 100 DDD/1000/day), whereas in AUS, H2RA use fell from 54 to around 24 DDD/1000/day over this period. AUS had much higher use of PPIs than NS over 2001-2005. The proportion of PPIs in all gastroprotective agents rose in AUS to be nearly 90%. The differences in utilisation during this time window could lead to differences in health outcomes from either lower gastro-intestinal bleeding risk or higher long-term adverse effects of PPIs. Copyright © 2013 John Wiley & Sons, Ltd.

  16. Supplementation of Mice with Specific Nondigestible Oligosaccharides during Pregnancy or Lactation Leads to Diminished Sensitization and Allergy in the Female Offspring.

    PubMed

    Hogenkamp, Astrid; Knippels, Leon M J; Garssen, Johan; van Esch, Betty C A M

    2015-05-01

    The maternal environment and early life exposure affect immune development in offspring. We investigated whether development of food allergy in offspring is affected by supplementing pregnant or lactating sensitized or nonsensitized mice with a mixture of nondigestible oligosaccharides. Dams were sensitized intragastrically with ovalbumin before mating, with use of cholera toxin (CT) as an adjuvant. Nonsensitized dams received CT only. Dams were fed a control diet or a diet supplemented with short-chain galacto oligosaccharides (scGOSs), long-chain fructo oligosaccharides (lcFOSs), and pectin-derived acidic oligosaccharides (pAOSs) in a ratio of 9:1:2 at a dose of 2% during pregnancy or lactation, resulting in 7 experimental groups. After weaning, offspring were fed a control diet and ovalbumin-CT sensitized. Acute allergic skin responses (ASRs), shock symptoms, body temperature, and specific plasma immunoglobulins were measured upon intradermal ovalbumin challenge. Th2/Th1- and regulatory T cells were analyzed with use of quantitative polymerase chain reaction and flow cytometric analysis in spleen, mesenteric lymph nodes, and blood. Supplementing sensitized pregnant or lactating dams with scGOS/lcFOS/pAOS resulted in lower ASRs in the offspring [offspring of sensitized female mice fed experimental diet during pregnancy (S-Preg): 48 ± 2.1 μm; offspring of sensitized female mice fed experimental diet during lactation (S-Lact): 60 ± 6.2 μm] compared with the sensitized control group (119 ± 13.9 μm). In the S-Lact group, this coincided with an absence of shock symptoms compared with the offspring of sensitized female mice fed control food during pregnancy and lactation (S-Con) and S-Preg groups, and lower ovalbumin-IgG1 [S-Con: 3.8 ± 0.1 arbitrary units (AUs); S-Preg: 3.3 ± 0.1 AUs; S-Lact: 2.4 ± 0.1 AUs] and higher ovalbumin-IgG2a concentrations (S-Con: 1.1 ± 0.1 AUs; S-Preg: 0.8 ± 0.1 AUs; S-Lact: 2.0 ± 0.1 AUs). Supplementing nonsensitized pregnant or

  17. Measurement of consumer preference for treatments used to induce labour: a willingness-to-pay approach.

    PubMed

    Taylor, Susan J.; Armour, Carol L.

    2000-09-01

    AIM: The purpose of the study was to assess the acceptability to consumers of two methods of induction of labour using a willingness-to-pay (WTP) approach. The methods compared were amniotomy plus oxytocin and prostaglandin E2 vaginal gel, followed by oxytocin if necessary. METHODS: A description of each method was presented, in questionnaire format, to pregnant women attending a public hospital ante-natal clinic. Women were asked to choose one of the two treatments, then give a valuation in dollar terms for both their preferred treatment and the alternative. RESULTS: It was found that 73.7% of patients preferred gel. The mean maximum WTP for amniotomy plus oxytocin was Aus$133 while that for gel was Aus$178 (P=0.0001). Those who chose amniotomy plus oxytocin were WTP 90% more for their preferred treatment compared with the alternative (Aus$180 vs. Aus$95). Similarly, those who preferred gel were WTP 90% more for their preferred treatment compared with the alternative (Aus$222 vs. Aus$119). CONCLUSION: Consumers were able to assess drug information provided on the two therapies, make an informed choice and to value that choice. Information obtained in this way, combined with information on costs, could be used in policy decision-making.

  18. Measurement of consumer preference for treatments used to induce labour: a willingness‐to‐pay approach

    PubMed Central

    Taylor, Susan J.; Armour, Carol L.

    2001-01-01

    Aim The purpose of the study was to assess the acceptability to consumers of two methods of induction of labour using a willingness‐to‐pay (WTP) approach. The methods compared were amniotomy plus oxytocin and prostaglandin E2 vaginal gel, followed by oxytocin if necessary. Methods A description of each method was presented, in questionnaire format, to pregnant women attending a public hospital ante‐natal clinic. Women were asked to choose one of the two treatments, then give a valuation in dollar terms for both their preferred treatment and the alternative. Results It was found that 73.7% of patients preferred gel. The mean maximum WTP for amniotomy plus oxytocin was Aus$133 while that for gel was Aus$178 (P=0.0001). Those who chose amniotomy plus oxytocin were WTP 90% more for their preferred treatment compared with the alternative (Aus$180 vs. Aus$95). Similarly, those who preferred gel were WTP 90% more for their preferred treatment compared with the alternative (Aus$222 vs. Aus$119). Conclusion Consumers were able to assess drug information provided on the two therapies, make an informed choice and to value that choice. Information obtained in this way, combined with information on costs, could be used in policy decision‐making. PMID:11281930

  19. Cytotechnologist performance for screening microfollicular atypia in indeterminate thyroid fine-needle aspirates.

    PubMed

    VandenBussche, Christopher J; Olson, Matthew T; Adams, Christina; Ali, Syed Z

    2014-01-01

    We previously identified a high level of accuracy among our cytotechnologists (CTs) for identifying nuclear atypia in thyroid fine-needle aspiration (FNA) specimens. Herewith, we present our CT performance at screening for microfollicular atypia. 8,814 thyroid FNA specimens were identified in our archives, all screened by 1 of 11 CTs and signed out by a cytopathologist. A subsample of cases was categorized either as atypia of uncertain significance (AUS) with microfollicular proliferation (AUS-F) or suspicious for a follicular neoplasm (SFN). The agreement rate was low between CTs and cytopathologists for SFN and AUS-F. Only 55.8% of SFN screening diagnoses were upheld; 27.9% were downgraded to AUS, 10.4% were downgraded to benign, and 5% were upgraded. Of AUS-F screening diagnoses, 35.5% were upheld, 33.7% were downgraded to benign, and 20.2% were upgraded to SFN. Among all cases, two-step discrepancies were uncommon. Most disagreements were one-category discrepancies between AUS-F and SFN. The evaluation of microfollicular atypia is challenging given that certain follicular lesions cannot be definitively diagnosed on cytology, a high level of subjectivity is involved in the interpretation of such lesions, and the presence of nuclear or Hurthle cell atypia may complicate the diagnosis. © 2014 S. Karger AG, Basel.

  20. Participation in population-based case-control studies: does the observed decline vary by socio-economic status?

    PubMed

    Mazloum, Marie; Bailey, Helen D; Heiden, Tamika; Armstrong, Bruce K; de Klerk, Nicholas; Milne, Elizabeth

    2012-05-01

    An Australian study of childhood leukaemia (Aus-ALL) previously reported that control participation was positively associated with socio-economic status (SES). A similar study of childhood brain tumours (Aus-CBT) was carried out 4 years later, and this paper compares control participation and its relationship with SES in the two studies. To assess the representativeness of controls in terms of SES, the addresses of controls were linked to Australian Bureau of Statistics Census 2006 Collection Districts (CDs), and hence to area-based indices of SES. Independent sample t-tests and chi-squared tests were used to compare the SES indices of CDs where Aus-CBT controls lived with those where Aus-ALL controls lived and with those of all CDs where Australian families lived. The overall percentage of eligible families who agreed to participate was lower in Aus-CBT (53.9%) than in Aus-ALL (70.3%). Control families in both studies were of higher SES than the general population, while the distribution of SES among recruited controls was similar in both studies. These findings provide some reassurance that the observed decline in research participation over time may not be associated with an increasingly unrepresentative participant population. © 2012 Blackwell Publishing Ltd.

  1. Variability of oil and gas well productivities for continuous (unconventional) petroleum accumulations

    USGS Publications Warehouse

    Charpentier, Ronald R.; Cook, Troy A.

    2013-01-01

    Over the last decade, oil and gas well productivities were estimated using decline-curve analysis for thousands of wells as part of U.S. Geological Survey (USGS) studies of continuous (unconventional) oil and gas resources in the United States. The estimated ultimate recoveries (EURs) of these wells show great variability that was analyzed at three scales: within an assessment unit (AU), among AUs of similar reservoir type, and among groups of AUs with different reservoir types. Within a particular oil or gas AU (such as the Barnett Shale), EURs vary by about two orders of magnitude between the most productive wells and the least productive ones (excluding those that are dry and abandoned). The distributions of EURs are highly skewed, with most of the wells in the lower part of the range. Continuous AUs were divided into four categories based on reservoir type and major commodity (oil or gas): coalbed gas, shale gas, other low-permeability gas AUs (such as tight sands), and low-permeability oil AUs. Within each of these categories, there is great variability from AU to AU, as shown by plots of multiple EUR distributions. Comparing the means of each distribution within a category shows that the means themselves have a skewed distribution, with a range of approximately one to two orders of magnitude. A comparison of the three gas categories (coalbed gas, shale gas, and other low-permeability gas AUs) shows large overlap in the ranges of EUR distributions. Generally, coalbed gas AUs have lower EUR distributions, shale gas AUs have intermediate sizes, and the other low-permeability gas AUs have higher EUR distributions. The plot of EUR distributions for each category shows the range of variation among developed AUs in an appropriate context for viewing the historical development within a particular AU. The Barnett Shale is used as an example to demonstrate that dividing wells into groups by time allows one to see the changes in EUR distribution. Subdivision into groups

  2. Behaviors of active sunbeds users and their knowledge on the potential health risks; results of cross-sectional study in Poland.

    PubMed

    Gajda, Maksymilian; Kamińska-Winciorek, Grażyna; Wydmański, Jerzy; Tukiendorf, Andrzej; Kowalska, Małgorzata

    2018-06-01

    Current literature review indicates that there is an increase in risk of skin melanoma due to the use of sunbeds. To assess behaviors and opinions about health risk related to tanning. From March 2012 to June of the same year, nonrepresentative cross-sectional study was conducted online concerning knowledge and behaviors during tanning. Data from 4919 people (80% of women, median age 25 years [IQR: 20-36]) were analyzed statistically with R software (level of significance at α = .05). We used the authors "active users of sunbeds" (AUS) criterion, denoting person using it ≥2 times per year with an average sessions lasting ≥5 minutes (cutoff values above 1 quartile). The reference was those not meeting above criteria. A total of 926 persons (18.8%) stated that they use sunbeds, while 680 (13.8%) met the criterion of AUS. Within the AUS group, the median number of visits in the tanning beds rooms was 10 (IQR: 5-15) per year, with single session lasting 9 (IQR: 7-10) minutes. The majority (83.5%) of AUS tanned naked indoors, with only 47.4% to have used safety glasses. These individuals were significantly more likely to be women, better educated, and were considered outdoor tanners. AUS were less aware of the risks associated with sunburns, with equal use of sunscreen and reapplication more frequently (as non-AUS). The level of knowledge in the field of prevention of melanoma was similar in both groups; however, AUS group more frequently took risky behaviors related to sun exposure. © 2018 Wiley Periodicals, Inc.

  3. Reproducibility of atypia of undetermined significance/follicular lesion of undetermined significance category using the bethesda system for reporting thyroid cytology when reviewing slides from different institutions: A study of interobserver variability among cytopathologists.

    PubMed

    Padmanabhan, Vijayalakshmi; Marshall, Carrie B; Akdas Barkan, Guliz; Ghofrani, Mohiedean; Laser, Alice; Tolgay Ocal, Idris; David Sturgis, Charles; Souers, Rhona; Kurtycz, Daniel F I

    2017-05-01

    The Bethesda System for Reporting Thyroid Cytopathology (TBSRTC) offers a six-tiered diagnostic scheme for thyroid Fine Needle Aspiration (FNA): Benign, Atypia of Undetermined Significance/Follicular Lesion of Undetermined Significance (AUS/FLUS), suspicious for follicular neoplasm, suspicious for malignancy, malignant, and unsatisfactory with an aim to standardize diagnostic criteria. Reported rate of AUS/FLUS category in the literature has varied from 3% to 20.5%. The aim of this study was to assess interobserver variability among cytopathologists to assess reproducibility of the AUS/FLUS category. Seven cytopathologists brought FNA cases (a mixture of atypical and non-atypical FNA diagnosis) diagnosed using TBSRTC from their respective institutions which were reviewed and diagnosed by the participants. The analysis assessed interobserver variability among 7 cytopathologists and determined characteristics on the slides which were associated with concordance to the institutional diagnosis. Seventy eight of 125 (62.4%) benign cases were classified as benign by the reviewers and 26 (21%) were called AUS/FLUS on review. A third of the AUS/FLUS cases were called benign on review and 28.2% were classified as suspicious for neoplasia/malignancy. Roughly a third each of the suspicious for follicular neoplasm/suspicious for malignancy cases were classified as AUS/FLUS. When pathologists from different institutions shared their slides, concordance was high for specimens with adequate cellularity and those that were clearly benign but thresholds varied for the other indeterminate categories. Most definite categorization of the AUS/FLUS category was seen on review. Diagn. Cytopathol. 2017;45:399-405. © 2017 Wiley Periodicals, Inc. © 2017 Wiley Periodicals, Inc.

  4. Cleaning of Livefront Electrical Switchgear Using Carbon Dioxide Pellets at Navy Installations

    DTIC Science & Technology

    1998-05-01

    MÄNTENIMIENTO - REPUESTOS ADX 600/- CARATTERISTICHE - CHARACTERISTICS - CARACTERISTIQUES - MERKMALE - CARACTERISTICAS Bicilindrico - Ciclo Diesel 4...Fliehkraftregler - Drehzahlregler - Kurbelgenhäuse aus Aluminium- Druckguss - Zylinder aus Perlitguss - Oelbadluftfilter. Bicilindrico - Ciclo Diesel de

  5. Neuropsychological functioning of siblings of children with autism, siblings of children with developmental language delay, and siblings of children with mental retardation of unknown genetic etiology.

    PubMed

    Pilowsky, Tammy; Yirmiya, Nurit; Gross-Tsur, Varda; Shalev, Ruth S

    2007-03-01

    Neuropsychological functioning of 30 siblings of children with autism (AU-S), 28 siblings of children with mental retardation of (MR-S), and 30 siblings of children with developmental language delay (DLD-S) was compared. Two siblings, both AU-S, received diagnoses of pervasive developmental disorder (PDD). More siblings with cognitive disabilities were found in DLD-S than in AU-S. However, these differences disappeared after excluding diagnosed siblings or after accounting for family membership. In sum, despite the elevated incidence of PDD among AU-S, the neuropsychological functioning of the remaining siblings did not convey specific characteristics related to the genetic risk associated with autism, in contrast to the cognitive functioning of the DLD-S, which did reflect a genetic risk.

  6. Risk Factors for Failure of Male Slings and Artificial Urinary Sphincters: Results from a Large Middle European Cohort Study.

    PubMed

    Hüsch, Tanja; Kretschmer, Alexander; Thomsen, Frauke; Kronlachner, Dominik; Kurosch, Martin; Obaje, Alice; Anding, Ralf; Pottek, Tobias; Rose, Achim; Olianas, Roberto; Friedl, Alexander; Hübner, Wilhelm; Homberg, Roland; Pfitzenmaier, Jesco; Grein, Ulrich; Queissert, Fabian; Naumann, Carsten Maik; Schweiger, Josef; Wotzka, Carola; Nyarangi-Dix, Joanne; Hofmann, Torben; Ulm, Kurt; Bauer, Ricarda M; Haferkamp, Axel

    2017-01-01

    We analysed the impact of predefined risk factors: age, diabetes, history of pelvic irradiation, prior surgery for stress urinary incontinence (SUI), prior urethral stricture, additional procedure during SUI surgery, duration of incontinence, ASA-classification and cause for incontinence on failure and complications in male SUI surgery. We retrospectively identified 506 patients with an artificial urinary sphincter (AUS) and 513 patients with a male sling (MS) in a multicenter cohort study. Complication rates were correlated to the risk factors in univariate analysis. Subsequently, a multivariate logistic regression adjusted to the risk factors was performed. A p value <0.05 was considered statistically significant. A history of pelvic irradiation was an independent risk factor for explantation in AUS (p < 0.001) and MS (p = 0.018). Moreover, prior urethral stricture (p = 0.036) and higher ASA-classification (p = 0.039) were positively correlated with explantation in univariate analysis for AUS. Urethral erosion was correlated with prior urethral stricture (p < 0.001) and a history of pelvic irradiation (p < 0.001) in AUS. Furthermore, infection was correlated with additional procedures during SUI surgery in univariate analysis (p = 0.037) in MS. We first identified the correlation of higher ASA-classification and explantation in AUS. Nevertheless, only a few novel risk factors had a significant influence on the failure of MS or AUS. © 2016 S. Karger AG, Basel.

  7. Intrapartum fetal heart rate monitoring in a combined low- and high-risk population: a controlled clinical trial.

    PubMed

    Neldam, S; Osler, M; Hansen, P K; Nim, J; Smith, S F; Hertel, J

    1986-10-01

    In a prospective clinical randomized investigation 487 women had the condition of the fetus during labour supervised by means of stethoscope (AUS), while 482 women went through labour under surveillance of electronic fetal monitoring, cardiotocography (EFM). 349 women refused to participate in the investigation (NAI) and had delivery conducted according to the normal procedures of the department (70% AUS, 30% EFM). Significantly more pathological fetal heart rate patterns (FHR) were found in the EFM group compared to the AUS group in both the first and the second stage of labour. As a result significantly more vacuum extractions were performed in the EFM group than in the AUS group, while no statistical difference was found between the groups in the incidence of acute cesarean sections carried out for asphyxia. One case of intrapartum death occurred in the AUS group. No differences were found in Apgar scores after 1 and 5 min or in neonatal morbidity at examination on the 2nd and 5th days after delivery. A tendency towards more biochemically compromised children was found in the AUS group. The specificity for both methods was found to be acceptably high (80%), while the predictive value for both methods was low (50%). More research is therefore urgently needed to evaluate supplementary investigations and parameters for the evaluation of the intrapartum fetal condition.

  8. Malformations detected by abdominal ultrasound in children with congenital heart disease.

    PubMed

    Rosa, Rosana Cardoso Manique; Rosa, Rafael Fabiano Machado; Flores, José Antônio Monteiro; Golendziner, Eliete; Oliveira, Ceres Andréia Vieira de; Varella-Garcia, Marileila; Paskulin, Giorgio Adriano; Zen, Paulo Ricardo Gazzola

    2012-12-01

    Extracardiac malformations may be present in patients with congenital heart disease (CHD), bringing greater risk of comorbidity and mortality. Verify frequency and types of abdominal abnormalities detected in children with and without CHD through abdominal ultrasound (AUS), compare the patients in relation to their dysmorphic/cytogenetic findings and perform an estimative of the cost-effectiveness of the screening through AUS. We conducted a cross-sectional study with a control cohort. The cases consisted of patients with CHD admitted for the first time in a pediatric intensive care unit; the controls consisted of children without CHD who underwent AUS at the hospital shortly thereafter a case. All patients with CHD underwent AUS, high-resolution karyotype and fluorescence in situ hybridization (FISH) for microdeletion 22q11.2. AUS identified clinically significant abnormalities in 12.2% of the cases and 5.2% of controls (p= 0.009), with a power of significance of 76.6%. Most malformations with clinical significance were renal anomalies (10.4% in cases and 4.9% in controls; p= 0.034). In Brazil, the cost of an AUS examination for the Unified Health System is US$ 21. Since clinically significant abnormalities were observed in one in every 8.2 CHD patients, the cost to identify an affected child was calculated as approximately US$ 176. Patients with CHD present a significant frequency of abdominal abnormalities detected by AUS, an inexpensive and noninvasive diagnostic method with good sensitivity. The cost of screening for these defects is considerably lower than the cost to treat the complications of late diagnoses of abdominal malformations such as renal disease.

  9. Utility of 18F-fluoro-deoxyglucose emission tomography/computed tomography fusion imaging (18F-FDG PET/CT) in combination with ultrasonography for axillary staging in primary breast cancer.

    PubMed

    Ueda, Shigeto; Tsuda, Hitoshi; Asakawa, Hideki; Omata, Jiro; Fukatsu, Kazuhiko; Kondo, Nobuo; Kondo, Tadaharu; Hama, Yukihiro; Tamura, Katsumi; Ishida, Jiro; Abe, Yoshiyuki; Mochizuki, Hidetaka

    2008-06-09

    Accurate evaluation of axillary lymph node (ALN) involvement is mandatory before treatment of primary breast cancer. The aim of this study is to compare preoperative diagnostic accuracy between positron emission tomography/computed tomography with 18F-fluorodeoxyglucose (18F-FDG PET/CT) and axillary ultrasonography (AUS) for detecting ALN metastasis in patients having operable breast cancer, and to assess the clinical management of axillary 18F-FDG PET/CT for therapeutic indication of sentinel node biopsy (SNB) and preoperative systemic chemotherapy (PSC). One hundred eighty-three patients with primary operable breast cancer were recruited. All patients underwent 18F-FDG PET/CT and AUS followed by SNB and/or ALN dissection (ALND). Using 18F-FDG PET/CT, we studied both a visual assessment of 18F-FDG uptake and standardized uptake value (SUV) for axillary staging. In a visual assessment of 18F-FDG PET/CT, the diagnostic accuracy of ALN metastasis was 83% with 58% in sensitivity and 95% in specificity, and when cut-off point of SUV was set at 1.8, sensitivity, specificity, and accuracy were 36, 100, and 79%, respectively. On the other hand, the diagnostic accuracy of AUS was 85% with 54% in sensitivity and 99% in specificity. By the combination of 18F-FDG PET/CT and AUS to the axilla, the sensitivity, specificity, and accuracy were 64, 94, and 85%, respectively. If either 18F-FDG PET uptake or AUS was positive in allixa, the probability of axillary metastasis was high; 50% (6 of 12) in 18F-FDG PET uptake only, 80% (4 of 5) in AUS positive only, and 100% (28 of 28) in dual positive. By the combination of AUS and 18F-FDG PET/CT, candidates of SNB were more appropriately selected. The axillary 18F-FDG uptake was correlated with the maximum size and nuclear grade of metastatic foci (p = 0.006 and p = 0.03). The diagnostic accuracy of 18F-FDG PET/CT was shown to be nearly equal to ultrasound, and considering their limited sensitivities, the high radiation exposure by 18F

  10. Evaluation of Abdominal Ultrasonography Mass Screening for Hepatocellular Carcinoma in Taiwan

    PubMed Central

    Yeh, Yen-Po; Hu, Tsung-Hui; Cho, Po-Yuan; Chen, Hsiu-Hsi; Yen, Amy Ming-Fang; Chen, Sam Li-Sheng; Chiu, Sherry Yueh-Hsia; Fann, Jean Ching-Yuan; Su, Wei-Wen; Fang, Yi-Jen; Chen, Shih-Tien; San, Hsiao-Ching; Chen, Hung-Pin; Liao, Chao-Sheng

    2014-01-01

    Mass screening with abdominal ultrasonography (AUS) has been suggested as a tool to control adult hepatocellular carcinoma (HCC) in individuals, but its efficacy in reducing HCC mortality has never been demonstrated. This study aimed to assess the effectiveness of reducing HCC mortality by mass AUS screening for HCC based on a program designed and implemented in the Changhua Community-based Integrated Screening (CHCIS) program with an efficient invitation scheme guided by the risk score. We invited 11,114 (27.0%) of 41,219 eligible Taiwanese subjects between 45 and 69 years of age who resided in an HCC high-incidence area to attend a risk score-guided mass AUS screening between 2008 and 2010. The efficacy of reducing HCC mortality was estimated. Of the 8,962 AUS screening attendees (with an 80.6% attendance rate), a total of 16 confirmed HCC cases were identified through community-based ultrasonography screening. Among the 16 screen-detected HCC cases, only two died from HCC, indicating a favorable survival. The cumulative mortality due to HCC (per 100,000) was considerably lower in the invited AUS group (17.26) compared with the uninvited AUS group (42.87) and the historical control group (47.51), yielding age- and gender-adjusted relative mortality rates of 0.69 (95% confidence interval [CI]: 0.56-0.84) and 0.63 (95% CI: 0.52-0.77), respectively. Conclusion: The residents invited to community-based AUS screening for HCC, compared with those who were not invited, showed a reduction in HCC mortality by ∼31% among subjects aged 45-69 years who had not been included in the nationwide vaccination program against hepatitis B virus infection. (Hepatology 2014;59:1840–1849) PMID:24002724

  11. Model non-equilibrium molecular dynamics simulations of heat transfer from a hot gold surface to an alkylthiolate self-assembled monolayer.

    PubMed

    Zhang, Yue; Barnes, George L; Yan, Tianying; Hase, William L

    2010-05-07

    Model non-equilibrium molecular dynamics (MD) simulations are presented of heat transfer from a hot Au {111} substrate to an alkylthiolate self-assembled monolayer (H-SAM) to assist in obtaining an atomic-level understanding of experiments by Wang et al. (Z. Wang, J. A. Carter, A. Lagutchev, Y. K. Koh, N.-H. Seong, D. G. Cahill, and D. D. Dlott, Science, 2007, 317, 787). Different models are considered to determine how they affect the heat transfer dynamics. They include temperature equilibrated (TE) and temperature gradient (TG) thermostat models for the Au(s) surface, and soft and stiff S/Au(s) models for bonding of the S-atoms to the Au(s) surface. A detailed analysis of the non-equilibrium heat transfer at the heterogeneous interface is presented. There is a short time temperature gradient within the top layers of the Au(s) surface. The S-atoms heat rapidly, much faster than do the C-atoms in the alkylthiolate chains. A high thermal conductivity in the H-SAM, perpendicular to the interface, results in nearly identical temperatures for the CH(2) and CH(3) groups versus time. Thermal-induced disorder is analyzed for the Au(s) substrate, the S/Au(s) interface and the H-SAM. Before heat transfer occurs from the hot Au(s) substrate to the H-SAM, there is disorder at the S/Au(s) interface and within the alkylthiolate chains arising from heat-induced disorder near the surface of hot Au(s). The short-time rapid heating of the S-atoms enhances this disorder. The increasing disorder of H-SAM chains with time results from both disorder at the Au/S interface and heat transfer to the H-SAM chains.

  12. Male Sling and Artificial Urethral Sphincter for Male Stress Urinary Incontinence Among Certifying American Urologists.

    PubMed

    Liu, Joceline S; Hofer, Matthias D; Milose, Jaclyn; Oberlin, Daniel T; Flury, Sarah C; Morey, Allen F; Gonzalez, Chris M

    2016-01-01

    To examine case volume characteristics among certifying urologists performing male sling and artificial urinary sphincter (AUS) procedures to evaluate practice patterns in male stress urinary incontinence (SUI). Six-month case log data of certifying urologists (2003-2013) were obtained from the American Board of Urology. Cases specifying Current Procedural Terminology code for male sling, AUS, and removal or revision of either procedure in males ≥18 years were analyzed. Among 1615 urologists (568 certifying and 1047 recertifying) logging at least 1 male incontinence procedure, 2109 (48% of all procedures) male sling and 2284 (52%) AUS cases were identified. The mean age of patients undergoing AUS was 74.9 years and the mean age of patients undergoing sling procedures was 67.3 years (P <.001). An increase in male incontinence procedures from 2003 to 2013 was demonstrated. The rate of male sling procedure increased from 32.7% of incontinence surgeries in 2004 to 45.5% in 2013 (P <.001). Academically affiliated urologists are 1.5 times more likely to perform AUS than male sling for SUI (P <.001). Median number of slings performed was 2 (range 1-40), with 32.7% placing slings exclusively. A small group of certifying urologists (3.4%) accounted for 22% of all male slings placed. This same cohort logged 10.2% of all AUS performed. Surgical management of male SUI varies widely across states (P <.001), with slings performed between 21% and 70% of the time. Overall the number of male incontinence procedures has increased over time, with a growing proportion of male slings. Most slings and AUS cases are performed by a small number of high-volume surgeons. Copyright © 2015 Elsevier Inc. All rights reserved.

  13. Kometen und Asteroiden

    NASA Astrophysics Data System (ADS)

    Borgeest, Ulf; Staude, Jakob; Hahn, Gerhard; Harris, Alan W.; Jaumann, Ralf; Köhler, Ulrich; Kührt, Ekkehard; Schulz, Rita; Neukum, Gerhard; Arnold, Gabriele; Keller, Horst Uwe; Denk, Tilmann; Müller, Thomas; Wulff, André; Maruhn, Nicolaus; Fischer, Daniel; Trieloff, Mario; Althaus, Tilmann

    Contents: Die Kleinkörper des Sonnensystems. Kern, Koma und Schweife. Ziele der Planetenforschung. ROSETTA: Naherkundung von Kometen. Asteroiden: Trümmer aus planetarer Urzeit. Kleinkörper im Infrarotweltall. Selbs beobachten! Apocalypse - not now! Meteoriten - Boten aus der Urzeit des Sonnensystems.

  14. Milch, Milchprodukte, Analoge und Speiseeis

    NASA Astrophysics Data System (ADS)

    Coors, Ursula

    Die Produktpalette Milch und Erzeugnisse aus Milch beinhaltet Konsummilch, die aus Milch oder Bestandteilen der Milch hergestellten Milcherzeugnisse wie Sauermilch-, Joghurt-, Kefir-, Buttermilch-, Sahne-, Kondensmilch-, Trockenmilch- und Molkenerzeugnisse, Milchmisch- und Molkenmischprodukte (Produkte mit beigegebenen Lebensmitteln), Milchzucker, Milcheiweißerzeugnisse, Milchfette und Käse.

  15. Bildanalyse in Medizin und Biologie

    NASA Astrophysics Data System (ADS)

    Athelogou, Maria; Schönmeyer, Ralf; Schmidt, Günther; Schäpe, Arno; Baatz, Martin; Binnig, Gerd

    Heutzutage sind bildgebende Verfahren aus medizinischen Untersuchungen nicht mehr wegzudenken. Diverse Methoden - basierend auf dem Einsatz von Ultraschallwellen, Röntgenstrahlung, Magnetfeldern oder Lichtstrahlen - werden dabei spezifisch eingesetzt und liefern umfangreiches Datenmaterial über den Körper und sein Inneres. Anhand von Mikroskopieaufnahmen aus Biopsien können darüber hinaus Daten über die morphologische Eigenschaften von Körpergeweben gewonnen werden. Aus der Analyse all dieser unterschiedlichen Arten von Informationen und unter Konsultation weiterer klinischer Untersuchungen aus diversen medizinischen Disziplinen kann unter Berücksichtigung von Anamnesedaten ein "Gesamtbild“ des Gesundheitszustands eines Patienten erstellt werden. Durch die Flut der erzeugten Bilddaten kommt der Bildverarbeitung im Allgemeinen und der Bildanalyse im Besonderen eine immer wichtigere Rolle zu. Gerade im Bereich der Diagnoseunterstützung, der Therapieplanung und der bildgeführten Chirurgie bilden sie Schlüsseltechnologien, die den Forschritt nicht nur auf diesen Gebieten maßgeblich vorantreiben.

  16. Usefulness of abdominal ultrasonography in the analysis of endoscopic activity in patients with Crohn's disease: changes following treatment with immunomodulators and/or anti-TNF antibodies.

    PubMed

    Moreno, Nadia; Ripollés, Tomás; Paredes, José María; Ortiz, Inmaculada; Martínez, María Jesús; López, Antonio; Delgado, Fructuoso; Moreno-Osset, Eduardo

    2014-09-01

    The objective of this study was to analyze the accuracy of abdominal ultrasonography (AUS) in the assessment of mucosal healing in patients with Crohn's disease (CD) receiving immunomodulators and/or biological treatment, with ileocolonoscopy as the reference standard. Thirty patients were included in a prospective longitudinal study. All patients underwent ileocolonoscopy and AUS before and after a minimum of one year of treatment. The Crohn's Disease Endoscopic Inflammatory Index of Severity (CDEIS) was used for endoscopic assessment whereas AUS was analyzed by means of bowel wall thickness, color Doppler grade and percentage of increase of parietal enhancement after contrast injection. In the segmental analysis, endoscopic healing was found in 71.2% of the segments and AUS findings were normalized in 62.8%, with a significant correlation between the two techniques (κ=0.76, p<0.001). In the overall assessment performed after treatment, 18 (60%) patients exhibited endoscopic remission (CDEIS <6 points); of these patients, 15 (83.3%) had normalized sonographic findings, with a good correlation between endoscopic remission and sonographic normalization (κ=0.73, p<0.001). Of the three variables assessed by AUS, parietal thickness was the best variable to predict mucosal healing in both analyses, segmental and global. Abdominal ultrasonography is a useful and reliable technique for the assessment of the endoscopic response to treatment with immunomodulators and/or biological drugs in Crohn's disease. AUS is a highly accurate technique for evaluating the healing of the intestinal mucosa. Copyright © 2014 European Crohn's and Colitis Organisation. Published by Elsevier B.V. All rights reserved.

  17. Assessing the activity of perianal Crohn's disease: comparison of clinical indices and computer-assisted anal ultrasound.

    PubMed

    Losco, Alessandra; Viganò, Chiara; Conte, Dario; Cesana, Bruno Mario; Basilisco, Guido

    2009-05-01

    Assessing perianal disease activity is important for the treatment and prognosis of Crohn's disease (CD) patients, but the diagnostic accuracy of the activity indices has not yet been established. The aim of this study was to determine the accuracy and agreement of the Fistula Drainage Assessment (FDA), Perianal Disease Activity Index (PDAI), and computer-assisted anal ultrasound imaging (AUS). Sixty-two consecutive patients with CD and perianal fistulae underwent clinical, FDA, PDAI, and AUS evaluation. Perianal disease was considered active in the presence of visible fistula drainage and/or signs of local inflammation (induration and pain at digital compression) upon clinical examination. The AUS images were analyzed by calculating the mean gray-scale tone of the lesion. The PDAI and gray-scale tone values discriminating active and inactive perianal disease were defined using receiver operating characteristics statistics. Perianal disease was active in 46 patients. The accuracy of the FDA was 87% (confidence interval [CI]: 76%-94%). A PDAI of >4 and a mean gray-scale tone value of 117 maximized sensitivity and specificity; their diagnostic accuracy was, respectively, 87% (CI: 76%-94%) and 81% (CI: 69%-90%). The agreement of the 3 evaluations was fair to moderate. The addition of AUS to the PDAI or FDA increased their diagnostic accuracy to respectively 95% and 98%. The diagnostic accuracy of the FDA, PDAI, and computer-assisted AUS imaging was good in assessing perianal disease activity in patients with CD. The agreement between the techniques was fair to moderate. Overall accuracy can be increased by combining the FDA or PDAI with AUS.

  18. Transcorporal artificial urinary sphincter in radiated and non - radiated compromised urethra. Assessment with a minimum 2 year follow-up.

    PubMed

    Le Long, Erwann; Rebibo, John David; Nouhaud, Francois Xavier; Grise, Philippe

    2016-01-01

    to assess the efficacy of transcorporal artificial urinary sphincter (AUS) implantation on continence for male stress urinary incontinence in cases of prior surgical treatment or/and radiation failure, and as a first option in radiation patients. From March 2007 to August 2012, 37 male patients were treated with transcorporal AUS AMS™ 800. Twelve patients had primary placement of transcorporal cuff, a surgical option due to a previous history of radiation and 25 patients had secondary procedure after failure of AUS or urinary incontinence surgery. Functional urinary outcomes were assessed by daily pad use, 24-hour Pad-test and ICIQ-SF questionnaire. Quality of life and satisfaction were assessed based on I-QoL and PGI-I questionnaires. After a median of 32 months, the continence rate (0 to 1 pad) was 69.7%. Median pad test was 17.5g (0-159), mean ICIQ-SF score was 7.3/21 (±5.4) and mean I-QoL score was 93.9/110. A total of 88% of the patients reported satisfaction with the AUS. The 5-year actuarial revision-free for AUS total device was 51%. Patients for primary implant for radiation were not more likely to experience revision than non-radiation patients. Preservation of erections was reported in half of the potent patients. Transcorporal AUS cuff placement is a useful alternative procedure option for severe male UI treatment, especially in patients with a compromised urethra after prior surgery or radiation. A high continence rate was reported and implantation as first option in radiation patients should be considered.

  19. Current use of the artificial urinary sphincter and its long-term durability: a nationwide survey in Japan.

    PubMed

    Arai, Yoichi; Takei, Mineo; Nonomura, Katsuya; Baba, Shiro; Habuchi, Tomonori; Matsuda, Tadashi; Takahashi, Satoru; Igawa, Mikio; Kaiho, Yasuhiro; Nakagawa, Haruo

    2009-01-01

    Although the artificial urinary sphincter (AUS) is one of the most effective surgical treatments for severe urinary incontinence, little is known about its use in Japan. A nationwide survey was done to determine contemporary trends in AUS use and its long-term durability. Data on AUS units sold in Japan were provided directly by Takai Hospital Supply Co., Ltd., Tokyo, Japan, and a survey form was sent to all 44 institutes where AUS implantation had been carried out. The survey included various demographic and preoperative variables, surgical variables, and postoperative outcomes. Between 1994 and 2007, a total of 100 AUS devices had been provided in Japan. Of the 44 institutes, 24 responded to the survey, and a total of 64 patients were enrolled in the study. Post-urological surgery incontinence accounted for 81.3% of the indications. During the mean follow-up of 50 months, mechanical failure occurred in four (6.2%), and the device was removed in 13 (20.3%) due to infection (14.0%), erosion (4.7%), or urination difficulty (1.5%). Of the 58 patients evaluated, 91.4% reported social continence. Five- and 10-year failure-free rates were 74.8% and 70.1%, respectively. On multivariate analysis, operative time was an independent predictor of treatment failure (P = 0.0334). Considering recent trends in prostate surgery, the AUS may be significantly underused in Japan. Although excellent long-term durability has been achieved, a learning effect appears to be evident. The Japanese urological community needs to provide appropriate patients with this treatment option.

  20. Assessment of Ultrasound Features Predicting Axillary Nodal Metastasis in Breast Cancer: The Impact of Cortical Thickness

    PubMed Central

    Stachs, A.; Thi, A. Tra-Ha; Dieterich, M.; Stubert, J.; Hartmann, S.; Glass, Ä.; Reimer, T.; Gerber, B.

    2015-01-01

    Purpose: To evaluate the accuracy of axillary ultrasound (AUS) in detecting nodal metastasis in patients with early-stage breast cancer and to identify AUS features with high predictive power. Materials and Methods: Prospective single-center preliminary study in 105 patients with a primary diagnosis of breast cancer and clinically negative axilla. AUS was performed using a 12 MHz linear-array transducer before ultrasound-guided needle biopsy. Nodal characteristics (shape, longitudinal-transverse [LT] axis ratio, margins, cortical thickness, hyperechoic hilum) were correlated with histopathological nodal status after SLNB or axillary lymph node dissection (ALND). Results: Nodal metastases were present in 42/105 patients (40.0%). Univariate analyses showed that absence of hyperechoic hilum, round shape, LT axis ratio<2, sharp margins and cortical thickness>3 mm were associated with lymph node metastasis. Multivariate logistic regression analysis revealed cortical thickness > 3 mm as an independent predictive parameter for nodal involvement. Sensitivity, specificity, positive predictive value, negative predictive value and accuracy were 66.7, 74.6, 63.6, 77.0% and 71.4% respectively when cortical thickness > 3 mm was applied as the criterion for AUS positivity. Axillary tumor volume was low in patients with pT1/2 tumors and negative AUS, since only 3.2% of patients had > 2 metastatic lymph nodes. Conclusion: Cortical thickness>3 mm is a reliable predictor of nodal metastatic involvement. Negative AUS does not exclude lymph node metastases, but extensive axillary tumor volume is rare. PMID:27689144

  1. Uncommon pollen walls: reasons and consequences*)

    PubMed Central

    Pacini, Ettore; Hesse, Michael

    2016-01-01

    The mature pollen wall of gymnosperms and angiosperms consists in principle of two fundamentally different layers, the complex, thick sporopolleninous exine and the homogeneous, thin, single-layered pectocellulosic intine. In angiosperms, the typical exine is usually formed by a tectum, columellae, a foot layer, and an endexine. An exine reduction (minimally up to the complete absence) occurs in many unrelated seed plants, without consequences for pollen viability. The intine sometimes also deviates from its common form, being either extremely thick or appearing two- or even three-layered. Environmental factors or developmental constraints are highlighted as being responsible for the various deviating exine and intine forms. Pacini E. & Hesse M, 2012: Unkomplette Pollenwand – Gründe und Konsequenzen Die fertige Pollenwand der Gymnospermen und der Angiospermen besteht im Prinzip aus zwei fundamental verschiedenen Lagen, aus der komplexen, dicken und sporopolleninhältigen Exine, und der homogenen, dünnen, einschichtigen und überwiegend zellulosehältigen Intine. Bei Angiospermen ist die typische Exine aus einem Tectum, aus Columellae, aus einem Foot Layer und zumeist noch aus einer Endexine geformt. In vielen, nicht miteinander verwandten Angiospermen (seltener bei Gymnospermen) is die Exine mehr oder weniger stark reduziert, was allerdings keinen Einfluß auf die Keimungsfähigkeit des Pollens hat. Auch die Intine weicht manchmal von ihrer üblichen Ausbildung ab, ist entweder auffallend dick oder zwei bis dreischichtig. Sowohl Umweltfaktoren als auch embryologisch und entwicklungsgeschichtlich bedingte Hemmungen sind für die abweichenden Exine- und Intineformen verantwortlich. PMID:28904424

  2. Subclassification of the "grey zone" of thyroid cytology; a retrospective descriptive study with clinical, cytological, and histological correlation.

    PubMed

    Bonzanini, Mariella; Amadori, Pierluigi; Morelli, Luca; Fasanella, Silvia; Pertile, Riccardo; Mattiuzzi, Angela; Marini, Giorgio; Niccolini, Mauro; Tirone, Giuseppe; Rigamonti, Marco; Dalla Palma, Paolo

    2011-01-01

    Undetermined thyroid cytology precludes any definitive distinction between malignant and benign lesions. Recently several classifications have been proposed to split this category into two or more cytological subcategories related to different malignancy risk rates. The current study was performed retrospectively to investigate the results obtained separating "undetermined" cytologic reports into two categories: "follicular lesion" (FL) and "atypia of undetermined significance" (AUS). Biochemical, clinical, and echographic features of each category were also retrospectively analyzed. Altogether, 316 undetermined fine-needle aspirated cytologies (FNACs) were reclassified as 74 FL and 242 AUS. Histological control leads to a diagnosis of carcinomas, adenomas, and nonneoplastic lesions, respectively, in 42.2%, 20%, and 37.8% of AUS and in 8.3%, 69.4%, and 22.2% of FL. Among biochemical, clinical, cytological, and echographic outcomes, altered thyroid autoantibodies, multiple versus single nodule, AUS versus FL, and presence of intranodular vascular flow were statistically significant to differentiate adenoma from carcinoma and from nonneoplastic lesions, whereas no significant differences were found between carcinomas and nonneoplastic lesions for these parameters. The results of this retrospective study show that undetermined FNAC category can further be subclassified in AUS and FL, the former showing higher malignancy rate. Further prospective studies are needed to confirm our results.

  3. Association between hyperglycaemia and fracture risk in non-diabetic middle-aged and older Australians: a national, population-based prospective study (AusDiab).

    PubMed

    Gagnon, C; Magliano, D J; Ebeling, P R; Dunstan, D W; Zimmet, P Z; Shaw, J E; Daly, R M

    2010-12-01

    The association between pre-diabetes and fracture risk remains unclear. In this large cohort of middle-aged and older Australian men and women without diabetes, elevated 2-h plasma glucose and pre-diabetes were associated with a reduced 5-year risk of low trauma and all fractures in women, independently of BMI, fasting insulin and other lifestyle factors. We aimed to (1) examine associations between fasting and 2-h plasma glucose (FPG and 2-h PG), fasting insulin and risk of low trauma and all fractures in non-diabetic adults and (2) compare fracture risk between adults with pre-diabetes (impaired glucose tolerance or impaired fasting glucose) and those with normal glucose tolerance (NGT). Six thousand two hundred fifty-five non-diabetic men and women aged ≥40 years with NGT (n = 4,855) and pre-diabetes (n = 1,400) were followed for 5 years in the AusDiab Study. Fractures were self-reported. Five hundred thirty-nine participants suffered at least one fracture (368 women, 171 men), of which the majority (318) occurred after a low-energy trauma (258 women, 60 men). In women, a 2-h PG ≥ 7.2 mmol/L (highest quartile) was associated with a decreased risk of low trauma and all fractures independent of age and BMI [OR (95% CI) for low trauma fractures, 0.59 (0.40-0.88)], but also fasting insulin, smoking, physical activity, history of fracture, dietary calcium and alcohol intake or menopausal status. There was no effect of 2-h PG on fracture risk in men [OR (95% CI), 1.39 (0.60-3.26)] or any relationship between fracture risk and quartiles of FPG or insulin in either sex. Compared to women with NGT, those with pre-diabetes had a reduced risk of fracture [OR (95% CI) for all fractures, 0.70 (0.52-0.95); for low trauma fractures, 0.75 (0.53-1.05)]. Elevated 2-h PG levels and pre-diabetes were inversely associated with low trauma and/or all fractures in non-diabetic women, independent of BMI and fasting insulin levels.

  4. Comparison of abdominal ultrasound and magnetic resonance imaging for detection of abdominal lymphadenopathy in dogs with metastatic apocrine gland adenocarcinoma of the anal sac.

    PubMed

    Anderson, C L; MacKay, C S; Roberts, G D; Fidel, J

    2015-06-01

    Imaging studies in humans with anal and rectal cancer indicate that magnetic resonance imaging (MRI) is a more sensitive technique than abdominal ultrasound (AUS) for the detection of abdominal lymphadenopathy. The purpose of this retrospective study was to directly compare the efficacy of these two techniques in detecting abdominal lymphadenopathy in dogs with apocrine gland adenocarcinoma of the anal sac (AGAAS). Six dogs with histologically confirmed AGAAS and histopathologic confirmation of metastasis to abdominal lymph nodes (LNs) had AUS and abdominal MRI. AUS identified lymphadenopathy in two of six dogs, whereas MRI identified lymphadenopathy in all the six dogs. Lymphadenopathy was predominantly sacral in location, with involvement of the medial iliac and hypogastric LNs in only two cases. These data suggest that MRI is more sensitive than AUS for detecting sacral abdominal lymphadenopathy in dogs with AGAAS. As such, MRI could be considered in any patient with AGAAS for initial staging of this disease. © 2013 Blackwell Publishing Ltd.

  5. Virtual-system-coupled adaptive umbrella sampling to compute free-energy landscape for flexible molecular docking.

    PubMed

    Higo, Junichi; Dasgupta, Bhaskar; Mashimo, Tadaaki; Kasahara, Kota; Fukunishi, Yoshifumi; Nakamura, Haruki

    2015-07-30

    A novel enhanced conformational sampling method, virtual-system-coupled adaptive umbrella sampling (V-AUS), was proposed to compute 300-K free-energy landscape for flexible molecular docking, where a virtual degrees of freedom was introduced to control the sampling. This degree of freedom interacts with the biomolecular system. V-AUS was applied to complex formation of two disordered amyloid-β (Aβ30-35 ) peptides in a periodic box filled by an explicit solvent. An interpeptide distance was defined as the reaction coordinate, along which sampling was enhanced. A uniform conformational distribution was obtained covering a wide interpeptide distance ranging from the bound to unbound states. The 300-K free-energy landscape was characterized by thermodynamically stable basins of antiparallel and parallel β-sheet complexes and some other complex forms. Helices were frequently observed, when the two peptides contacted loosely or fluctuated freely without interpeptide contacts. We observed that V-AUS converged to uniform distribution more effectively than conventional AUS sampling did. © 2015 Wiley Periodicals, Inc.

  6. Effect of microstructure on transformation-induced plasticity of silicon-containing low-alloy steel

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Tomita, Yoshiyuki; Morioka, Kojiro

    1997-04-01

    Fe-0.6C-1.5Si-0.8Mn steel was studied to determine the effect of the microstructure on transformation-induced plasticity (TRIP) of silicon-containing low-alloy steel. A remarkable increase in elongation through TRIP can develop in the steel subjected to the following heat treatments: (1) austemper combined with subcritical annealing (SA Aus-T): subcritical annealing at 993K followed by austempering at 673K and then light tempering (after austenitization at 1173K); (2) austemper coupled with interrupted quenching (IQ Aus-T): interrupted quenching at 533K followed by austempering at 673K and light tempering (after austenization at 1,173K). The SA Aus-T treatment produced the triple structures of carbide-free upper bainite, retained austenitemore » ({gamma}R), and free ferrite. As a result of the IQ Aus-T treatment, the triple structures of carbide-free upper bainite, {gamma}R, and tempered martensite appeared. The results are described and microstructural factors in TRIP are discussed.« less

  7. Natural variation of rice blast resistance gene Pi-d2

    USDA-ARS?s Scientific Manuscript database

    Studying natural variation of rice resistance (R) genes in cultivated and wild rice relatives can predict resistance stability to rice blast fungus. In the present study, the protein coding regions of rice R gene Pi-d2 in 35 rice accessions of subgroups, aus (AUS), indica (IND), temperate japonica (...

  8. Kunststoffe (Polymere)

    NASA Astrophysics Data System (ADS)

    Weißbach, Wolfgang

    Polymere bestehen aus Riesen- oder Makromolekülen, die durch chemische Reaktionen aus einfachen, niedermolekularen Verbindungen entstehen, den Monomeren. Ausgangsstoffe sind überwiegend Kohlenwasserstoffe (KW), die größte Gruppe der C-Verbindungen. Sie müssen reaktionsfähige Stellen besitzen, das sind OH-Gruppen oder Dopppelbindungen.

  9. Practice patterns of post-radical prostatectomy incontinence surgery in Ontario

    PubMed Central

    Wallis, Christopher J.D.; Herschorn, Sender; Liu, Ying; Carr, Lesley K.; Kodama, Ronald T.; Klotz, Laurence H.; Saskin, Refik; Nam, Robert K.

    2014-01-01

    Introduction: We assess the practice patterns of artificial urinary sphincter (AUS) and urethral sling insertion after radical prostatectomy (RP) from a large population-based cohort. Methods: We examined 25 346 men in Ontario, Canada who underwent RP between 1993 and 2006. Using hospital and cancer registry data, we identified patients who subsequently underwent an incontinence procedure. We characterized the practice patterns of post-prostatectomy incontinence procedures across Ontario during the study interval. Results: A total of 703 (2.8%) men underwent subsequent insertion of an AUS and 282 (1.1%) underwent a urethral sling procedure (985 total incontinence procedures, 3.9%) over the study period. During the study period, 121 hospitals performed RP. Among them, 32 (26%) hospitals performed both RP and AUS/sling procedures, and 89 (74%) performed RP only. Four hospitals performed AUS/sling procedures but not RP. Of the 36 institutions that performed AUS/sling procedures, the median annual case volume was 0.29 (interquartile range: 0.083-0.75). Of all incontinence procedures, 56% were performed at 3 academic institutions. When examining observed rates of AUS/sling procedures compared with expected rates from the overall cohort, 15 of 32 hospitals (47%) performed significantly fewer incontinence procedures than expected given their RP case volume (p range: <0.0001–0.0390) and 5 (16%) performed significantly more (p range: <0.0001–0.038). Conclusions: A small number of academic institutions provide most of the surgical care for men with incontinence following RP in Ontario. Many centres that perform RP refer out to other centres to surgically manage their patients’ incontinence. PMID:25408805

  10. Utility of Computed Tomography versus Abdominal Ultrasound Examination to Identify Iliosacral Lymphadenomegaly in Dogs with Apocrine Gland Adenocarcinoma of the Anal Sac.

    PubMed

    Palladino, S; Keyerleber, M A; King, R G; Burgess, K E

    2016-11-01

    Apocrine gland adenocarcinoma of the anal sac (AGAAS) is associated with high rates of iliosacral lymph node metastasis, which may influence treatment and prognosis. Magnetic resonance imaging (MRI) recently has been shown to be more sensitive than abdominal ultrasound examination (AUS) in affected patients. To compare the rate of detection of iliosacral lymphadenomegaly between AUS and computed tomography (CT) in dogs with AGAAS. Cohort A: A total of 30 presumed normal dogs. Cohort B: A total of 20 dogs with AGAAS that underwent AUS and CT. Using cohort A, mean normalized lymph node : aorta (LN : AO) ratios were established for medial iliac, internal iliac, and sacral lymph nodes. The CT images in cohort B then were reviewed retrospectively and considered enlarged if their LN : AO ratio measured 2 standard deviations above the mean normalized ratio for that particular node in cohort A. Classification and visibility of lymph nodes identified on AUS were compared to corresponding measurements obtained on CT. Computed tomography identified lymphadenomegaly in 13 of 20 AGAAS dogs. Of these 13 dogs, AUS correctly identified and detected all enlarged nodes in only 30.8%, and either misidentified or failed to detect additional enlarged nodes in the remaining dogs. Despite limitations in identifying enlargement in all affected lymph nodes, AUS identified at least 1 enlarged node in 100% of affected dogs. Abdominal ultrasound examination is an effective screening test for lymphadenomegaly in dogs with AGAAS, but CT should be considered in any patient in which an additional metastatic site would impact therapeutic planning. Copyright © 2016 The Authors. Journal of Veterinary Internal Medicine published by Wiley Periodicals, Inc. on behalf of the American College of Veterinary Internal Medicine.

  11. Speaker and Accent Variation Are Handled Differently: Evidence in Native and Non-Native Listeners

    PubMed Central

    Kriengwatana, Buddhamas; Terry, Josephine; Chládková, Kateřina; Escudero, Paola

    2016-01-01

    Listeners are able to cope with between-speaker variability in speech that stems from anatomical sources (i.e. individual and sex differences in vocal tract size) and sociolinguistic sources (i.e. accents). We hypothesized that listeners adapt to these two types of variation differently because prior work indicates that adapting to speaker/sex variability may occur pre-lexically while adapting to accent variability may require learning from attention to explicit cues (i.e. feedback). In Experiment 1, we tested our hypothesis by training native Dutch listeners and Australian-English (AusE) listeners without any experience with Dutch or Flemish to discriminate between the Dutch vowels /I/ and /ε/ from a single speaker. We then tested their ability to classify /I/ and /ε/ vowels of a novel Dutch speaker (i.e. speaker or sex change only), or vowels of a novel Flemish speaker (i.e. speaker or sex change plus accent change). We found that both Dutch and AusE listeners could successfully categorize vowels if the change involved a speaker/sex change, but not if the change involved an accent change. When AusE listeners were given feedback on their categorization responses to the novel speaker in Experiment 2, they were able to successfully categorize vowels involving an accent change. These results suggest that adapting to accents may be a two-step process, whereby the first step involves adapting to speaker differences at a pre-lexical level, and the second step involves adapting to accent differences at a contextual level, where listeners have access to word meaning or are given feedback that allows them to appropriately adjust their perceptual category boundaries. PMID:27309889

  12. Transcorporal artificial urinary sphincter in radiated and non - radiated compromised urethra. Assessment with a minimum 2 year follow-up

    PubMed Central

    Long, Erwann Le; Rebibo, John David; Nouhaud, Francois Xavier; Grise, Philippe

    2016-01-01

    ABSTRACT Purpose to assess the efficacy of transcorporal artificial urinary sphincter (AUS) implantation on continence for male stress urinary incontinence in cases of prior surgical treatment or/and radiation failure, and as a first option in radiation patients. Materials and Methods From March 2007 to August 2012, 37 male patients were treated with transcorporal AUS AMS™ 800. Twelve patients had primary placement of transcorporal cuff, a surgical option due to a previous history of radiation and 25 patients had secondary procedure after failure of AUS or urinary incontinence surgery. Functional urinary outcomes were assessed by daily pad use, 24-hour Pad-test and ICIQ-SF questionnaire. Quality of life and satisfaction were assessed based on I-QoL and PGI-I questionnaires. Results After a median of 32 months, the continence rate (0 to 1 pad) was 69.7%. Median pad test was 17.5g (0-159), mean ICIQ-SF score was 7.3/21 (±5.4) and mean I-QoL score was 93.9/110. A total of 88% of the patients reported satisfaction with the AUS. The 5-year actuarial revision-free for AUS total device was 51%. Patients for primary implant for radiation were not more likely to experience revision than non-radiation patients. Preservation of erections was reported in half of the potent patients. Conclusions Transcorporal AUS cuff placement is a useful alternative procedure option for severe male UI treatment, especially in patients with a compromised urethra after prior surgery or radiation. A high continence rate was reported and implantation as first option in radiation patients should be considered. PMID:27286112

  13. [Laparoscopic approach for artificial urinary sphincter implantation in women with severe urinary stress incontinence].

    PubMed

    Trolliet, S; Mandron, E; Lang, H; Jacqmin, D; Saussine, C

    2013-09-01

    To evaluate, feasibility, efficacy and morbidity of laparoscopic artificial urinary sphincter (AUS) implantation in women with severe stress urinary incontinence. Twenty-six women with severe stress urinary incontinence were treated between October 2007 and January 2012 by laparoscopic implantation of an AUS AMS 800 (American medical Systems, Inc., Minnetonka, Minnesota). For 18 patients AUS was primary implanted and, for eight, AUS was revised for a mechanical failure. Three patients had a concomitant laparoscopic vaginal prolapse repair. Mean value was for age 64 years, BMI 27.8kg/m2, and mean maximal urethral closure pressure was 26.75cm of water. Most of the patients (88%) had a history of pelvic or incontinence surgery. The study was a retrospective analysis of operative parameters, complications and functional results. Three conversions in open surgery and five bladder injuries were described. Mean operative time was 149 minutes. Bladder catheter was removed at a mean of day 3.8. Mean post-operative stay was 5 days. Early postoperative complications consist in eight acute transient urinary retentions, two pump migrations, and one vaginal injury. Late post-operative complications consist in one vaginal erosion. Explantation of AUS was performed for these last two patients. Mean follow-up was 20 months. Sixteen patients are totally continent, five have a social continence (1 pad/day) and three need more than one pad/day. Our results compare favorably to literature either for laparoscopic or conventional approach with a limited learning curve. Laparoscopic implantation of AUS in women with severe stress urinary incontinence was feasible and efficient. Copyright © 2013 Elsevier Masson SAS. All rights reserved.

  14. New Partnerships and Education Policy in Asia and the Pacific

    ERIC Educational Resources Information Center

    Cassity, Elizabeth

    2010-01-01

    Forming more effective partnerships with national governments in the Asia-Pacific region has been an important policy focus for the Australian Agency for International Development (AusAID) since 2006. AusAID is increasingly engaging in sector-wide approaches and working through partner government systems. This paper explores how new partnerships…

  15. The Bethesda system for reporting thyroid cytopathology: An experience of 1,382 cases in a community practice setting with the implication for risk of neoplasm and risk of malignancy.

    PubMed

    Wu, Howard Her-Juing; Rose, Crystal; Elsheikh, Tarik M

    2012-05-01

    The Bethesda System for Reporting Thyroid Cytopathology (TBSRTC) has provided a set of uniform diagnostic terminology including benign (B), atypia of undetermined significance (AUS), follicular neoplasm (FN), suspicious for malignancy (SM), malignancy (M), and nondiagnostic (ND) for the interpretation of thyroid fine-needle aspiration (FNA). We applied this terminology on our 1,382 thyroid aspirates in a community practice setting, which included 539 cases of B (39%), 376 cases of AUS (27.2%), 116 cases of FN (8.4%), 37 cases of malignant (2.7%), 36 cases of SM (2.6%), and 278 cases of ND (20.1%). Two hundred twenty-one cases (16%) of thyroid FNA had corresponding follow-up thyroidectomies. Each diagnostic category represented a unique association with risk of malignancy and risk of neoplasm. Based on histologic follow-up, the risk of neoplasm (including benign and malignant neoplasm) was B 14%, AUS 44%, FN 67%, SM 77%, and M 100% and the risk of malignancy was B 3%, AUS 6%, FN 22%, SM 56%, and M 100%. The classification and follow-up recommendation of TBSRTC are appropriate for each category. Both B and AUS are low-risk lesions with low probability of malignancy. FN predicts a higher rate for neoplasm but an intermediate rate for malignancy while SM carries a high risk for malignancy. Copyright © 2011 Wiley-Liss, Inc.

  16. Long-term functional outcomes after artificial urinary sphincter implantation in women with stress urinary incontinence.

    PubMed

    Phé, Véronique; Benadiba, Steeve; Rouprêt, Morgan; Granger, Benjamin; Richard, François; Chartier-Kastler, Emmanuel

    2014-06-01

    To assess the long-term outcomes obtained after artificial urinary sphincter (AUS) implantation in women with stress urinary incontinence (SUI). Women with SUI caused by intrinsic sphincter deficiency who underwent an AUS placement between 1984 and 1992 were included. Explantation, revision and deactivation rates of the AUS were reported. Continence, defined as no pad use, was assessed at the end of the follow-up. Kaplan-Meier survival curves were generated to evaluate the survival rate of the device without explantation or revision. A total of 34 patients were included. The median (interquartile range [IQR]) age of the patients at surgery was 56.5 (50-64.7) years and the median (IQR) follow-up was 17 (12-19) years. Overall, 26 women (74%) still had their AUS in place at the end of the follow-up, while eight patients underwent an explantation of the device. The 10-, 15- and 20-year device survival rates without explantation were 80, 80 and 74%, respectively. The 10-, 15- and 20-year survival rates of the device without revision were 79, 65 and 40%, respectively. After 20 years of follow-up, 11 women still had successful outcomes (61%). The AUS provided satisfactory very long-term functional results among women with SUI caused by intrinsic sphincter deficiency. © 2013 The Authors. BJU International © 2013 BJU International.

  17. 77 FR 5291 - The Designation of Monir Chouka, also Known as Mounir Chouka, Also Known as Abu Adam, Also Known...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-02

    ... DEPARTMENT OF STATE [Public Notice: 7783] The Designation of Monir Chouka, also Known as Mounir Chouka, Also Known as Abu Adam, Also Known as Abu Adam From Germany, also Known as Abu Adam aus... Chouka, also known as Abu Adam from Germany, also known as Abu Adam aus Deutschland, committed, or poses...

  18. TÜV - Zertifizierungen in der Life Science Branche

    NASA Astrophysics Data System (ADS)

    Schaff, Peter; Gerbl-Rieger, Susanne; Kloth, Sabine; Schübel, Christian; Daxenberger, Andreas; Engler, Claus

    Life Sciences [1] (Lebenswissenschaften) sind ein globales Innovationsfeld mit Anwendungen der Bio- und Medizinwissenschaften, der Pharma-, Chemie-, Kosmetik- und Lebensmittelindustrie. Diese Branche zeichnet sich durch eine stark interdisziplinäre Ausrichtung aus, mit Anwendung wissenschaftlicher Erkenntnisse und Einsatz von Ausgangsstoffen aus der modernen Biologie, Chemie und Humanmedizin sowie gezielter marktwirtschaftlich orientierter Arbeit.

  19. A Review of Marine Geophysical Constraints on the Motion Between East and West Antarctica in the Cenozoic (Invited)

    NASA Astrophysics Data System (ADS)

    Cande, S. C.; Stock, J. M.

    2010-12-01

    Motion between East and West Antarctica in the Late Cretaceous and Cenozoic is derived by summing the plate circuit(s) linking East Antarctica to Australia to the Lord Howe Rise to the Pacific plate to West Antarctica (the Aus-Pac plate circuit). We discuss this motion in two parts: motion before and after 42 Ma. For the younger time interval, motion is directly constrained by magnetic anomalies in the Adare Basin, which opened by ultraslow seafloor spreading between 42 and 26 Ma (anomalies 18 to 9). The Adare Basin magnetic anomaly constraints can be combined with magnetic anomaly and fracture zone data from the SEIR (Aus-East Ant to the west of the Balleny FZ and Aus - West Ant to the east) to set up an Aus-East Ant - West Ant three-plate problem. The original solution of this three-plate configuration (Cande et al., 2000) only had data from a very short section of the Adare Basin and obtained an answer with very large uncertainties on the East-West Ant rotation. Better estimates of the East-West Ant rotation have been calculated by adding constraints based on seismically controlled estimates of extension in the Victoria Land Basin (Davey et al., 2006) and constraints from Damaske et al’s (2007) detailed aeromagnetic survey of the Adare Basin and adjacent Northern Basin (Granot et al., 2010). Currently, we are working on improving the accuracy of rotations for the post-42 Ma time interval by taking advantage of an unusual plate geometry that enables us to solve a five-boundary, four-plate configuration. Specifically, motion between the four plates (East Ant, West Ant, Aus and Pac) encompasses two related triple junction systems with five spreading ridge segments (Aus-East Ant, Aus-West Ant, Aus-Pac, Pac-West Ant and East Ant-West Ant) which can be combined and solved simultaneously. For the older, pre-42 Ma time interval, the only way to calculate motion between East and West Antarctica is via the long Aus-Pac plate circuit (although it is possible that

  20. Role of Core Needle Biopsy in the Management of Atypia/Follicular Lesion of Undetermined Significance Thyroid Nodules: Comparison with Repeat Fine-Needle Aspiration in Subcategory Nodules

    PubMed Central

    Na, Dong Gyu; Min, Hye Sook; Lee, Hunkyung; Won, Jae-Kyung; Seo, Hyo Bin; Kim, Ji-Hoon

    2015-01-01

    Background The role of repeat fine-needle aspiration (RFNA) or core needle biopsy (CNB) has not been established in nodules categorized as atypia/follicular lesion of undetermined significance (AUS/FLUS). Objective The purpose of this study was to retrospectively determine whether CNB is more useful for management decisions than RFNA at each subcategory of AUS/FLUS nodules. Methods This study included 158 AUS/FLUS nodules (≥1 cm) from 153 consecutive patients who underwent both RFNA and CNB. The AUS/FLUS nodules were subcategorized into nuclear atypia (NA) and follicular lesions with other atypia (FOA). The diagnostic results and rate of determined management by RFNA and CNB were compared at each subcategory. The diagnostic values of RFNA and CNB for malignancy were evaluated in nodules with final diagnoses. Results CNB showed a lower rate of AUS/FLUS diagnosis, higher rates of benign and follicular neoplasm or suspicious for a follicular neoplasm (FN/SFN) diagnoses (p ≤ 0.038), and marginally higher rates of malignant diagnosis than RFNA in the NA subcategory. CNB showed a higher rate of FN/SFN (p = 0.007) than RFNA in the FOA subcategory. CNB also demonstrated a higher rate of surgery decision than RFNA in both the NA subcategory (20.2 vs. 9.6%, p < 0.001) and FOA subcategory (20.8 vs. 5.6%, p = 0.007), and a higher rate of observation decision only in the NA subcategory (48.1 vs. 35.6%, p = 0.035). CNB demonstrated a higher diagnostic performance for malignancy overall in the nodules compared with RFNA. Conclusion CNB may be more useful for management decisions than RFNA in both the NA and FOA subcategories, and has the potential to be a first-line alternative diagnostic tool in initially diagnosed AUS/FLUS nodules. PMID:26558236

  1. First Results of GPS Time Transfer to Australia

    NASA Technical Reports Server (NTRS)

    Mck.luck, J.; Woodger, J. R.; Wells, J. E.; Churchill, P. N.; Clements, P. A.

    1984-01-01

    A global positioning system (GPS) time transfer unit was installed at Tidbinbilla Deep Space Communications Complex of the DSN in June 1983. It was used to estimate the relationship to UTC(USNO MC) of the Tidbinbilla frequency and time system TID(FTS) based on a hydrogen maser, and to estimate the performance of the Australian free-running time scale UTC(AUS). Data from the first 3 months were analyzed three ways: by two-hop common view using JPL as intermediary; by long-arc interpolation of measurements against space vehicle clocks; and by long arc interpolation of GPS-Time results. Residuals from a single quadratic fit through 3 months of UTC(USNO MC) -TID(FTS) results were white noise with standard error 15 ns, and a flying clock measurement gave 70 ns agreement. A straight line fit through results UTC(USNO MC) - UTC(AUS) gave 90 ns standard error and 120 ns agreement. It is proposed to use the GPS measurements to steer UTC(AUS) to UTC(BIH), and to rename the existing time scale TA(AUS).

  2. Identification of Action Units Related to Affective States in a Tutoring System for Mathematics

    ERIC Educational Resources Information Center

    Padrón-Rivera, Gustavo; Rebolledo-Mendez, Genaro; Parra, Pilar Pozos; Huerta-Pacheco, N. Sofia

    2016-01-01

    Affect is an important element of the learning process both in the classroom and with educational technology. This paper presents analyses in relation to the identification of Action Units (AUs) related to affective states and their impact on learning with a tutoring system. To assess affect, a tool was devised to identify AUs on pictures of human…

  3. Comparative analysis of the complete genome of an epidemic hospital sequence type 203 clone of vancomycin-resistant Enterococcus faecium

    PubMed Central

    2013-01-01

    Background In this report we have explored the genomic and microbiological basis for a sustained increase in bloodstream infections at a major Australian hospital caused by Enterococcus faecium multi-locus sequence type (ST) 203, an outbreak strain that has largely replaced a predecessor ST17 sequence type. Results To establish a ST203 reference sequence we fully assembled and annotated the genome of Aus0085, a 2009 vancomycin-resistant Enterococcus faecium (VREfm) bloodstream isolate, and the first example of a completed ST203 genome. Aus0085 has a 3.2 Mb genome, comprising a 2.9 Mb circular chromosome and six circular plasmids (2 kb–130 kb). Twelve percent of the 3222 coding sequences (CDS) in Aus0085 are not present in ST17 E. faecium Aus0004 and ST18 E. faecium TX16. Extending this comparison to an additional 12 ST17 and 14 ST203 E. faecium hospital isolate genomes revealed only six genomic regions spanning 41 kb that were present in all ST203 and absent from all ST17 genomes. The 40 CDS have predicted functions that include ion transport, riboflavin metabolism and two phosphotransferase systems. Comparison of the vancomycin resistance-conferring Tn1549 transposon between Aus0004 and Aus0085 revealed differences in transposon length and insertion site, and van locus sequence variation that correlated with a higher vancomycin MIC in Aus0085. Additional phenotype comparisons between ST17 and ST203 isolates showed that while there were no differences in biofilm-formation and killing of Galleria mellonella, ST203 isolates grew significantly faster and out-competed ST17 isolates in growth assays. Conclusions Here we have fully assembled and annotated the first ST203 genome, and then characterized the genomic differences between ST17 and ST203 E. faecium. We also show that ST203 E. faecium are faster growing and can out-compete ST17 E. faecium. While a causal genetic basis for these phenotype differences is not provided here, this study revealed conserved genetic

  4. Recognizing Action Units for Facial Expression Analysis

    PubMed Central

    Tian, Ying-li; Kanade, Takeo; Cohn, Jeffrey F.

    2010-01-01

    Most automatic expression analysis systems attempt to recognize a small set of prototypic expressions, such as happiness, anger, surprise, and fear. Such prototypic expressions, however, occur rather infrequently. Human emotions and intentions are more often communicated by changes in one or a few discrete facial features. In this paper, we develop an Automatic Face Analysis (AFA) system to analyze facial expressions based on both permanent facial features (brows, eyes, mouth) and transient facial features (deepening of facial furrows) in a nearly frontal-view face image sequence. The AFA system recognizes fine-grained changes in facial expression into action units (AUs) of the Facial Action Coding System (FACS), instead of a few prototypic expressions. Multistate face and facial component models are proposed for tracking and modeling the various facial features, including lips, eyes, brows, cheeks, and furrows. During tracking, detailed parametric descriptions of the facial features are extracted. With these parameters as the inputs, a group of action units (neutral expression, six upper face AUs and 10 lower face AUs) are recognized whether they occur alone or in combinations. The system has achieved average recognition rates of 96.4 percent (95.4 percent if neutral expressions are excluded) for upper face AUs and 96.7 percent (95.6 percent with neutral expressions excluded) for lower face AUs. The generalizability of the system has been tested by using independent image databases collected and FACS-coded for ground-truth by different research teams. PMID:25210210

  5. The Rice Paradox: Multiple Origins but Single Domestication in Asian Rice

    PubMed Central

    Choi, Jae Young; Platts, Adrian E.; Fuller, Dorian Q.; Hsing (邢禹依), Yue-Ie; Wing, Rod A.

    2017-01-01

    Abstract The origin of domesticated Asian rice (Oryza sativa) has been a contentious topic, with conflicting evidence for either single or multiple domestication of this key crop species. We examined the evolutionary history of domesticated rice by analyzing de novo assembled genomes from domesticated rice and its wild progenitors. Our results indicate multiple origins, where each domesticated rice subpopulation (japonica, indica, and aus) arose separately from progenitor O. rufipogon and/or O. nivara. Coalescence-based modeling of demographic parameters estimate that the first domesticated rice population to split off from O. rufipogon was O. sativa ssp. japonica, occurring at ∼13.1–24.1 ka, which is an order of magnitude older then the earliest archeological date of domestication. This date is consistent, however, with the expansion of O. rufipogon populations after the Last Glacial Maximum ∼18 ka and archeological evidence for early wild rice management in China. We also show that there is significant gene flow from japonica to both indica (∼17%) and aus (∼15%), which led to the transfer of domestication alleles from early-domesticated japonica to proto-indica and proto-aus populations. Our results provide support for a model in which different rice subspecies had separate origins, but that de novo domestication occurred only once, in O. sativa ssp. japonica, and introgressive hybridization from early japonica to proto-indica and proto-aus led to domesticated indica and aus rice. PMID:28087768

  6. Cytological Diagnosis of Follicular Variant of Papillary Thyroid Carcinoma before and after the Bethesda System for Reporting Thyroid Cytopathology.

    PubMed

    Fazeli, Roghayeh; VandenBussche, Christopher J; Bishop, Justin A; Ali, Syed Z

    2016-01-01

    The follicular variant of papillary thyroid carcinoma (FVPTC) is the second most common subtype of papillary carcinoma after the classical variant. The Bethesda System for Reporting Thyroid Cytopathology (TBSRTC) has been introduced to standardize the practice of thyroid fine needle aspiration (FNA) reporting. We evaluated the impact of TBSRTC on the FNA interpretation of histologically proven FVPTCs. Cytology reports of 455 histologically proven FVPTCs were reviewed. The rate of each TBSRTC category was compared between pre- and post-TBSRTC eras. The distribution of FNA diagnoses for pre-TBSRTC cases included suspicious for follicular neoplasm (SFN; n = 51, 28.7%), papillary thyroid carcinoma (PTC; n = 47, 26.4%), suspicious for malignancy (SFM; n = 32, 18%), atypia of undetermined significance (AUS; n = 23, 13%), benign (n = 18, 10.1%), and nondiagnostic (ND; n = 7, 4%). Post-TBSRTC diagnoses were: AUS (n = 68, 24.6%), PTC (n = 64, 23.1%), SFM (n = 50, 18%), SFN and benign (n = 42, 15.2%) and ND (n = 11, 4%). SFN rate decreased significantly from 28.7 to 15.2% (p = 0.001) and AUS increased from 12.9 to 24.5% (p = 0.003). Following implementation of TBSRTC, the frequency of AUS diagnoses on FNA prior to surgical resection increased. Given that the rate of FVPTC diagnoses on thyroidectomy increased over the same period, this suggests that the use of AUS has resulted in greater surgical resection of FVPTC. © 2016 S. Karger AG, Basel.

  7. Alcohol Use Severity Among Hispanic Emerging Adults in Higher Education: Understanding the Effect of Cultural Congruity.

    PubMed

    Cano, Miguel Ángel; Vaughan, Ellen L; de Dios, Marcel A; Castro, Yessenia; Roncancio, Angelica M; Ojeda, Lizette

    2015-01-01

    Identifying and understanding determinants of alcohol use behavior among Hispanic college students is an increasingly important public health issue, particularly during emerging adulthood. Studies examining ethnocultural determinants of alcohol use behavior among Hispanic college students have focused on direct associations with cultural orientation (e.g., acculturation and enculturation); yet there is a need for research that accounts for the complex interplay of other culturally relevant sociocultural factors. This study examined associations of behavioral acculturation, behavioral enculturation, and cultural congruity (perception of cultural fit between the values of the academic environment and the student's personal values) with alcohol use severity (AUS); and tested if gender moderated those associations. A hierarchical linear regression and moderation analysis were conducted on a sample of 167 Hispanic emerging adults (ages 18-25) enrolled in college. All predictor variables entered in the regression model accounted for 20.9% of the variance in AUS. After controlling for demographic variables and depressive symptoms, behavioral acculturation and enculturation did not have a statistically significant association with AUS. Further, gender did not moderate either of these associations. Conversely, greater cultural congruity was associated with lower reports of AUS. A moderation analysis suggested that cultural congruity predicted lower reports of AUS among men, but not among women. This was the first known study to examine the association of cultural congruity with alcohol use. Findings highlight the value of examining contextual factors of culture and moving beyond reductive measures of cultural orientation.

  8. Chips aus Plastik: Organische Elektronik

    NASA Astrophysics Data System (ADS)

    Kiy, Michael

    2003-01-01

    Künstliche organische Materialien werden in Zukunft vermehrt in der Elektronik eingesetzt werden. Obwohl sie gute Isolatoren sind, kann ein ausreichend großes elektrisches Feld in ihnen einen elektrischen Strom fließen lassen. Dazu injizieren Metallelektroden freie Ladungsträger wie Elektronen oder Löcher in das organische Material. Diese Ladungsträgerinjektion kann die elektrischen Eigenschaften geeigneter organischer Materialien vom Isolator bis zum Leiter steuern. Eine zukünftige Domäne solcher Kunststoffe werden einfache, billige Chips sein. Bei den Displays könnten sie bald die konventionellen Flüssigkristallanzeigen technisch überflügeln.

  9. Methodik und Qualität statistischer Erhebungen

    NASA Astrophysics Data System (ADS)

    Krug, Walter; Schmidt, Jürgen; Wiegert, Rolf

    Kapitel 8 wirft einen Blick hinter die Kulissen statistischer Arbeit und ihrer Methoden, insbesondere auch hinter die der amtlichen Statistik: Wie kommen die Myriaden von Zahlen zustande, die heute aus statistischen Quellenwerken aller Art und aus Datenbanken abgerufen werden können? Dabei wird deutlich, welche Schwierigkeiten bei Erhebungen, insbesondere bei Stichprobenerhebungen, zu überwinden sind, wie man Antwortverweigerer kooperativer stimmt, wie sich auch aus kleinen Stichproben auf intelligente Weise verlässliche Ergebnisse erzielen lassen und wie Großstichproben auf europäischer Ebene harmonisiert werden. Am Beispiel des Zensus 2011 wird gezeigt, wie sich eine Kombination von Stichproben und Registerauswertungen als Ersatz für eine Volkszählung nutzen lässt. Mitglieder der Deutschen Statistischen Gesellschaft waren daran kooperativ beteiligt.

  10. First results of GPS time transfer to Australia

    NASA Technical Reports Server (NTRS)

    Luck, J. M.; Woodger, J. R.; Wells, J. E.; Churchill, P. N.; Clements, P. A.

    1985-01-01

    A Global Positioning System time transfer unit built by NBS under contract to JPL was installed at Tidbinbilla Deep Space Communications Complex of the NASA Deep Space Network in June 1983. It has been used to estimate the relationship to UTC(USNO MC) of the Tidbinbilla frequency and time system TID(FTS) based on a hydrogen maser, and thence to estimate the performance of the Australian free-running time scale UTC(AUS). Data from the first three months has been analyzed three ways: by two-hop common view using JPL as intermediary; by long-arc interpolation of measurements against space vehicle clocks; and by long-arc interpolation of GPS-Time results. Residuals from a single quadratic fit through three months of UTC(USNO MC) - TID (FTS) results were white noise with standard error 15 ns, and a flying clock measurement gave 70 ns agreement. A straight line fit through results UTC(USNO MC) - UTC (AUS) gave 90 ns standard error and 120 bns agreement. It is proposed to use the GPS measurements to steer UTS(AUS) to UTC(BIH), and to rename the existing time scale TA(AUS).

  11. Morphogenetic Mechanisms in the Cyclic Regeneration of Hair Follicles and Deer Antlers from Stem Cells

    PubMed Central

    Li, Chunyi; McMahon, Chris

    2013-01-01

    We have made comparisons between hair follicles (HFs) and antler units (AUs)—two seemingly unrelated mammalian organs. HFs are tiny and concealed within skin, whereas AUs are gigantic and grown externally for visual display. However, these two organs share some striking similarities. Both consist of permanent and cyclic/temporary components and undergo stem-cell-based organogenesis and cyclic regeneration. Stem cells of both organs reside in the permanent part and the growth centres are located in the temporary part of each respective organ. Organogenesis and regeneration of both organs depend on epithelial-mesenchymal interactions. Establishment of these interactions requires stem cells and reactive/niche cells (dermal papilla cells for HFs and epidermal cells for AUs) to be juxtaposed, which is achieved through destruction of the cyclic part to bring the reactive cells into close proximity to the respective stem cell niche. Developments of HFs and AUs are regulated by similar endocrine (particularly testosterone) and paracrine (particularly IGF1) factors. Interestingly, these two organs come to interplay during antlerogenesis. In conclusion, we believe that investigators from the fields of both HF and AU biology could greatly benefit from a comprehensive comparison between these two organs. PMID:24383056

  12. Alcohol Use Severity among Hispanic Emerging Adults in Higher Education: Understanding the Effect of Cultural Congruity

    PubMed Central

    Cano, Miguel Ángel; Vaughan, Ellen L.; de Dios, Marcel A.; Castro, Yessenia; Roncancio, Angelica M.; Ojeda, Lizette

    2016-01-01

    Background Identifying and understanding determinants of alcohol use behavior among Hispanic college students is an increasingly important public health issue, particularly during emerging adulthood. Studies examining ethnocultural determinants of alcohol use behavior among Hispanic college students have focused on direct associations with cultural orientation (e.g., acculturation and enculturation); yet there is a need for research that accounts for the complex interplay of other culturally relevant sociocultural factors. Objectives This study examined associations of behavioral acculturation, behavioral enculturation, and cultural congruity (perception of cultural fit between the values of the academic environment and the student's personal values) with alcohol use severity (AUS); and tested if gender moderated those associations. Methods A hierarchical linear regression and moderation analysis were conducted on a sample of 167 Hispanic emerging adults (ages 18 to 25) enrolled in college. Results All predictor variables entered in the regression model accounted for 20.9% of the variance in AUS. After controlling for demographic variables and depressive symptoms, behavioral acculturation and enculturation did not have a statistically significant association with AUS. Further, gender did not moderate either of these associations. Conversely, greater cultural congruity was associated with lower reports of AUS. A moderation analysis suggested that cultural congruity predicted lower reports of AUS among men, but not among women. Conclusions This was the first known study to examine the association of cultural congruity with alcohol use. Findings highlight the value of examining contextual factors of culture and moving beyond reductive measures of cultural orientation. PMID:26574656

  13. U.S. Geological Survey 2013 assessment of undiscovered resources in the Bakken and Three Forks Formations of the U.S. Williston Basin Province

    USGS Publications Warehouse

    Gaswirth, Stephanie B.; Marra, Kristen R.

    2014-01-01

    The Upper Devonian Three Forks and Upper Devonian to Lower Mississippian Bakken Formations comprise a major United States continuous oil resource. Current exploitation of oil is from horizontal drilling and hydraulic fracturing of the Middle Member of the Bakken and upper Three Forks, with ongoing exploration of the lower Three Forks, and the Upper, Lower, and Pronghorn Members of the Bakken Formation. In 2008, the U.S. Geological Survey (USGS) estimated a mean of 3.65 billion bbl of undiscovered, technically recoverable oil resource within the Bakken Formation. The USGS recently reassessed the Bakken Formation, which included an assessment of the underlying Three Forks Formation. The Pronghorn Member of the Bakken Formation, where present, was included as part of the Three Forks assessment due to probable fluid communication between reservoirs. For the Bakken Formation, five continuous and one conventional assessment units (AUs) were defined. These AUs are modified from the 2008 AU boundaries to incorporate expanded geologic and production information. The Three Forks Formation was defined with one continuous and one conventional AU. Within the continuous AUs, optimal regions of hydrocarbon recovery, or “sweet spots,” were delineated and estimated ultimate recoveries were calculated for each continuous AU. Resulting undiscovered, technically recoverable resource estimates were 3.65 billion bbl for the five Bakken continuous oil AUs and 3.73 billion bbl for the Three Forks Continuous Oil AU, generating a total mean resource estimate of 7.38 billion bbl. The two conventional AUs are hypothetical and represent a negligible component of the total estimated resource (8 million barrels of oil).

  14. Incidence of facial clefts in Cambridge, United Kingdom.

    PubMed

    Bister, Dirk; Set, Patricia; Cash, Charlotte; Coleman, Nicholas; Fanshawe, Thomas

    2011-08-01

    The aim of this study was to determine the incidence of facial clefting in Cambridge, UK, using multiple resources of ascertainment and to relate the findings to antenatal ultrasound screening (AUS) detection rates. AUS records from an obstetric ultrasound department, post-natal records from the regional craniofacial unit, and autopsy reports of foetuses over 16 weeks' gestational age from a regional pathology department from 1993 to 1997 were retrospectively reviewed. Cross-referencing between the three data sets identified all cases of facial clefts. Of 23,577 live and stillbirths, 30 had facial clefts. AUS detected 17 of these. Sixteen of the 30 had isolated facial clefts. Others had associated anomalies, chromosomal defects, or syndromes. Percentages and confidence intervals were calculated from the above data. Twenty-one resulted in live births, seven terminations, and two foetal deaths. Overall, detection rate by AUS was 65 percent [67 percent isolated cleft lip, 93 per cent cleft lip and palate (CLP), and 22 percent isolated cleft palate], with no false positives. The incidence of facial clefts was 0.127 percent (95 percent confidence interval 0.089-0.182 percent); the incidence for isolated CLP was lower than previously reported: 0.067 percent (0.042-0.110 percent). With one exception, all terminations were in foetuses with multiple anomalies. The figures presented will enable joint CLP clinics to give parents information of termination rates. The study allows pre-pregnancy counselling of families previously affected by clefting about the reliability of AUS detection rates.

  15. Long-term functional outcomes after artificial urinary sphincter implantation in men with stress urinary incontinence.

    PubMed

    Léon, Priscilla; Chartier-Kastler, Emmanuel; Rouprêt, Morgan; Ambrogi, Vanina; Mozer, Pierre; Phé, Véronique

    2015-06-01

    To evaluate long-term functional outcomes of artificial urinary sphincters (AUSs) and to determine how many men required explantation because of stress urinary incontinence (SUI) caused by sphincter deficiency after prostate surgery. Men who had undergone placement of an AUS (American Medical Systems AMS 800®) between 1984 and 1992 to relieve SUI caused by sphincter deficiency after prostate surgery were included. Continence, defined as no need for pads, was assessed at the end of the follow-up. Kaplan-Meier survival curves estimated the survival rate of the device without needing explantation or revision. In all, 57 consecutive patients were included with a median (interquartile range, IQR) age of 69 (64-72) years. The median (IQR) duration of follow-up was 15 (8.25-19.75) years. At the end of follow-up, 25 patients (43.8%) still had their primary AUS. The AUS was explanted in nine men because of erosion (seven) and infection (two). Survival rates, without AUS explantation, were 87%, 87%, 80%, and 80% at 5, 10, 15, and 20 years, respectively. Survival rates, without AUS revision, were 59%, 28%, 15%, and 5% at 5, 10, 15, and 20 years, respectively. At the end of the follow-up, in intention-to-treat analysis, 77.2% of patients were continent. In the long term (>10 years) the AMS 800 can offer a high rate of continence to men with SUI caused by sphincter deficiency, with a tolerable rate of explantation and revision. © 2014 The Authors. BJU International © 2014 BJU International.

  16. Post-term surveillance and birth outcomes in South Asian-born compared with Australian-born women.

    PubMed

    Yim, C; Wong, L; Cabalag, C; Wallace, E M; Davies-Tuck, M

    2017-02-01

    To determine if apparently healthy post-term South Asian-born (SA) women were more likely to have abnormal post-term fetal surveillance than Australian- and New Zealand-born (AUS/NZ) women, whether those abnormalities were associated with increased rates of obstetric intervention and adverse perinatal outcomes, and whether SA women and their babies were at higher risk of adverse outcomes in the post-term period irrespective of their post-term surveillance outcomes. Post-term surveillance and perinatal outcomes of 145 SA and 272 AUS/NZ nulliparous women with a singleton post-term pregnancy were compared in a retrospective multicentre cohort analysis. Post-term SA women were not significantly more likely to have a low amniotic fluid index (AFI) than AUS/NZ women. However, they were nearly four times more likely (odds ratio 3.75; 95% CI 1.49-9.44) to have an abnormal CTG (P=0.005). Irrespective of maternal region of birth having an abnormal cardiotocography (CTG) or AFI was not associated with adverse intrapartum or perinatal outcomes. However, post-term SA women were significantly more likely than AUS/NZ women to have intrapartum fetal compromise (P=0.03) and an intrapartum cesarean section (P=0.002). Babies of SA women were more also significantly likely to be admitted to the Special Care Nursery or Neonatal Intensive Care Unit (P=0.02). Post-term SA women experience higher rates of fetal compromise (antenatal and intrapartum) and obstetric intervention than AUS/NZ women. Irrespective of maternal region of birth an abnormal CTG or AFI was not predictive of adverse outcomes.

  17. Ein Kredit für Weihnachtsbaumkugeln

    NASA Astrophysics Data System (ADS)

    Tutsch, Sina

    Eine Mathematikerin aus dem DFG-Forschungszentrum Matheon arbeitet an Methoden zur dreidimensionalen Visualisierung. Sie hat die Geschäftsidee, Weihnachtsbaumkugeln mit bewegten Hologrammen herzustellen, die sich individuell gestalten lassen, und plant eine Existenzgründung. Aus einem öffentlichen Förderprogramm erhält sie ein günstiges Darlehen in Höhe von 50 000 Euro. Für die Startphase ihres Unternehmens benötigt sie jedoch den vierfachen Betrag.

  18. Phylogenetically Novel LuxI/LuxR-Type Quorum Sensing Systems Isolated Using a Metagenomic Approach

    PubMed Central

    Nasuno, Eri; Fujita, Masaki J.; Nakatsu, Cindy H.; Kamagata, Yoichi; Hanada, Satoshi

    2012-01-01

    A great deal of research has been done to understand bacterial cell-to-cell signaling systems, but there is still a large gap in our current knowledge because the majority of microorganisms in natural environments do not have cultivated representatives. Metagenomics is one approach to identify novel quorum sensing (QS) systems from uncultured bacteria in environmental samples. In this study, fosmid metagenomic libraries were constructed from a forest soil and an activated sludge from a coke plant, and the target genes were detected using a green fluorescent protein (GFP)-based Escherichia coli biosensor strain whose fluorescence was screened by spectrophotometry. DNA sequence analysis revealed two pairs of new LuxI family N-acyl-l-homoserine lactone (AHL) synthases and LuxR family transcriptional regulators (clones N16 and N52, designated AubI/AubR and AusI/AusR, respectively). AubI and AusI each produced an identical AHL, N-dodecanoyl-l-homoserine lactone (C12-HSL), as determined by nuclear magnetic resonance (NMR) and mass spectrometry. Phylogenetic analysis based on amino acid sequences suggested that AusI/AusR was from an uncultured member of the Betaproteobacteria and AubI/AubR was very deeply branched from previously described LuxI/LuxR homologues in isolates of the Proteobacteria. The phylogenetic position of AubI/AubR indicates that they represent a QS system not acquired recently from the Proteobacteria by horizontal gene transfer but share a more ancient ancestry. We demonstrated that metagenomic screening is useful to provide further insight into the phylogenetic diversity of bacterial QS systems by describing two new LuxI/LuxR-type QS systems from uncultured bacteria. PMID:22983963

  19. The experience of artificial urinary sphincter implantation by a single surgeon in 15 years.

    PubMed

    Shen, Yuan-Chi; Chiang, Po-Hui

    2013-03-01

    Artificial urinary sphincter (AUS) is the gold standard treatment for urinary incontinence owing to sphincter incompetence. We reviewed our experience in AUS implantation. From 1995 to 2009, 19 patients underwent 25 AUS implantations performed by a single surgeon. The cause of incontinence was sphincter incompetence, which was secondary to prostate surgery, neurogenic bladder, radiation, and post-traumatic urethral lesion. Twenty-three prostheses were placed in the bulbar urethra for male patients: 11 AUS cuffs were placed through the perineal approach and 12 through the penoscrotal approach. Two procedures were applied over the bladder neck for the female patients. Through a retrospective review of charts, continence and complications were analyzed. The mean follow-up time was 50.0 ± 42.9 months (range: 2-146 months). There were 16 successful surgeries (64%), and these patients were free from the need for a pad. In eight surgeries (32%), the devices were removed due to infection, while one implantation (4%) was unsuccessful due to perforation into the bulbar urethra. There was a statistically significant difference (p = 0.024) in failure rates between patients who received radiotherapy (100%) and other patients (22.7%). There was no statistically significant difference in dry and revision rates (p > 0.05) between the perineal and penoscrotal approach. Accordingly, over half of the patients with total incontinence benefitted from AUS implantation. In consideration of the high failure rate for patients receiving radiotherapy, caution should be exercised in the use of implantation. Secondary implantation has a satisfactory success rate in selected patients. The same success rate was noted for both perineal and penoscrotal approaches. Copyright © 2013. Published by Elsevier B.V.

  20. Combination therapy for male erectile dysfunction and urinary incontinence.

    PubMed

    Zafirakis, Helen; Wang, Run; Westney, O Lenaine

    2008-01-01

    Urinary incontinence (UI) and erectile dysfunction (ED) are both very prevalent conditions. Insertion of an artificial urinary sphincter (AUS) and penile prosthesis (PP) is an effective and proven method of treatment for both conditions. With advancing age, as well as with increasing populations of patients radically treated for prostate cancer, the occurrence of both conditions found in the same patient is increasing. The purpose of this article was to analyze the available evidence for simultaneous surgical management of male ED and UI using prosthetic devices. The existing literature pertaining to dual implantation of AUS and PP was reviewed. The concomitant insertion of the PP with the male perineal sling was also considered. Concurrent ED and UI are increasingly seen in the post radical prostatectomy population, who are often younger and less willing to suffer with these conditions. Insertion of an AUS and PP, either simultaneously or as a two-stage procedure, appears to be a safe, efficacious and long-lasting method of treatment. The improvements in design of both the AUS and PP as well as the development of the single transverse scrotal incision have made simultaneous insertion of these prostheses possible. Dual implantation of the PP and male sling looks promising in a selected population. In conclusion, the insertion of the AUS and PP for the treatment of concurrent UI and ED is safe and effective. Simultaneous insertion of these prostheses in the same patient offers potential advantages in operative and recovery time and is associated with high patient satisfaction. Combination therapy should therefore be included in the arsenal of treatment of these conditions.

  1. Successful Completion of the Pilot Phase of a Randomized Controlled Trial Comparing Sentinel Lymph Node Biopsy to No Further Axillary Staging in Patients with Clinical T1-T2 N0 Breast Cancer and Normal Axillary Ultrasound

    PubMed Central

    Cyr, Amy E; Tucker, Natalia; Ademuyiwa, Foluso; Margenthaler, Julie A; Aft, Rebecca L; Eberlein, Timothy J; Appleton, Catherine M; Zoberi, Imran; Thomas, Maria A; Gao, Feng; Gillanders, William E

    2016-01-01

    Background Axillary surgery is not considered therapeutic in patients with clinical T1-T2 N0 breast cancer. The importance of axillary staging is eroding in an era where tumor biology, as defined by biomarker and gene expression profile, is increasingly important in medical decision making. We hypothesize that axillary ultrasound (AUS) is a noninvasive alternative to sentinel lymph node biopsy (SLNB), and AUS could replace SLNB without compromising patient care. Study Design Patients with clinical T1-T2 N0 breast cancer and normal AUS were eligible for enrollment. Subjects were randomized to no further axillary staging (Arm 1) versus SLNB (Arm 2). Descriptive statistics were used to describe the results of the pilot phase of the randomized controlled trial. Results 68 subjects were enrolled in the pilot phase of the trial (34 subjects in Arm 1, no further staging; 32 subjects in Arm 2, SLNB, and 2 subjects voluntarily withdrew from the trial). The median age was 61 years (range 40-80) in Arm 1 and 59 years (range 31-81) in Arm 2, and there were no significant clinical or pathologic differences between the arms. Median follow-up was 17 months (range 1-32). The negative predictive value (NPV) of AUS for identification of clinically significant axillary disease (> 2.0 mm) was 96.9%. No axillary recurrences have been observed in either arm. Conclusions Successful completion of the pilot phase of the randomized controlled trial confirms the feasibility of the study design, and provides prospective evidence supporting the ability of AUS to exclude clinically significant disease in the axilla. The results provide strong support for a phase 2 randomized controlled trial. PMID:27212005

  2. The use of the Bethesda terminology in thyroid fine-needle aspiration results in a lower rate of surgery for nonmalignant nodules: a report from a reference center in Turkey.

    PubMed

    Ozluk, Yasemin; Pehlivan, Esmehan; Gulluoglu, Mine G; Poyanli, Arzu; Salmaslioglu, Artur; Colak, Nese; Kapran, Yersu; Yilmazbayhan, Dilek

    2011-12-01

    The Bethesda system (BS) for reporting thyroid fine-needle aspiration (FNA), which classifies nodules as nondiagnostic (ND), benign (B), atypia/follicular lesion of undetermined significance (AUS/FLUS), suspicious for follicular neoplasm (SFN/FN), suspicious for malignancy (SFM), or malignant (M), uses clinically valuable management guidelines. The authors employed a similar in-house classification system (IS) for thyroid FNAs, using the categories of ND, B, suspicious follicular cells (SFC), follicular lesion/neoplasm (FL/FN), SFM, and M. The authors compared IS and BS, and assessed the utility of BS in clinical practice. A total of 581 nodules with cytological/histological follow-up were examined and indeterminate lesions by BS were reclassified. The sensitivity and specificity for malignancy using IS were similar to that of BS (77% vs 99%). However, when SFN/FN and SFM were both considered positive, the results for IS and BS were as follows: sensitivity, 85% versus 85%; specificity, 87% versus 94%; and diagnostic accuracy, 86% versus 90%, respectively. Discrepancies between cytological and histological data were evident in 35 cases among all categories of BS except AUS/FLUS. The rate of surgery for nonmalignant nodules was lesser (20% vs 9%) by BS. Among 34 AUS/FLUS cases with follow-up data, hypocellularity was the case in 11 (46%) nonneoplastic and 10 (100%) neoplastic nodules. The use of BS results in a lower rate of surgery for nonmalignant nodules even though patients with borderline cytopathologic features are still encountered. AUS/FLUS category can be separated into subgroups according to the factors causing difficulties in the interpretation. There is a need of accumulation of AUS/FLUS cases to do further evaluations and studies.

  3. Comparison of outcomes after single or DOUBLE-CUFF artificial urinary sphincter insertion.

    PubMed

    O'Connor, R Corey; Gerber, Glenn S; Avila, Desiderio; Chen, Andrew A; Bales, Gregory T

    2003-10-01

    To assess the effectiveness and complications associated with single and double-cuff artificial urinary sphincter (AUS) implantation for postprostatectomy stress urinary incontinence. A retrospective study of 56 men with postprostatectomy stress urinary incontinence who underwent either single (28 patients) or double (28 patients) cuff AUS placement was performed. Patients in each cohort were matched on the basis of preoperative pad use, risk factors for complications, and age. Patient selection was blinded relative to outcome. Continence, quality of life, and complications were assessed using the Incontinence Impact Questionnaire Short Form (IIQ-7), postoperative pad use, and chart review. The mean age was 67 years for each group. Daily pad use decreased from 7.7 to 1.1 in patients treated with a single-cuff AUS and from 7.8 to 0.7 in patients with a double-cuff AUS (P = 0.25). Complete continence (0 pads daily) was reported in 3 (11%) of 28 men with single-cuff and 12 (43%) of 28 men with double-cuff sphincters (P = 0.008). The IIQ-7 scores improved from 14.8 to 3.1 after single-cuff placement and from 16.3 to 2.5 after double-cuff placement (P = 0.03). With an average follow-up of 41.3 and 21.2 months for the single and double-cuff cohorts, respectively, five complications were reported in the single-cuff recipients and four in the double-cuff patients. A significantly greater rate of complete continence and improvement in the IIQ-7 were seen in men with double-cuff AUS compared with single-cuff devices. Additional study is needed to confirm the relative advantages of double-cuff insertion.

  4. Artificial urinary sphincter implantation in women with stress urinary incontinence: preliminary comparison of robot-assisted and open approaches.

    PubMed

    Peyronnet, Benoit; Vincendeau, Sébastien; Tondut, Lauranne; Bensalah, Karim; Damphousse, Mireille; Manunta, Andréa

    2016-03-01

    We aimed to compare outcomes of open and robot-assisted artificial urinary sphincter (AUS) implantation in female patients. The charts of all female patients who underwent an AUS implantation between 2008 and 2014 in a single center were retrospectively reviewed. From 2008 to 2012, AUS were implanted using an open approach and from 2013 to 2014 using a robot-assisted approach. Perioperative and functional parameters were compared between groups. The primary endpoint was continence status. Twenty-four women were assessed: 16 in the open group and eight in the robot-assisted group. Three patients had neurogenic stress urinary incontinence. Most patients had undergone previous procedures for urinary incontinence (15 in the open group and seven in the robotic group). Mean operative time was similar in both groups (214 vs. 211 min; p = 0.90). Postoperative complicationsrate was lower in the robot-assisted group (25 vs. 75 %; p = 0.02). There was a trend toward a lower intraoperative complication rate (37.5 vs. 62.5 %; p = 0.25), decreased blood loss (17 ml vs. 275 ml; p = 0.22), and shorter length of stay (3.5 vs. 9.3 days; p = 0.09) in the robot-assisted group. Continence rates were comparable in both groups (75 vs. 68.8 %; p = 0.75). Three AUS explantations were needed in the open group (18.8 %) compared with one in the robot-assisted group (12.5 %; p = 0.70). In female patients, the robot-assisted approach compared with open AUS implantation could decrease intraoperative and postoperative complication rates, length of hospital stay, and blood loss.

  5. Long-term Outcomes Following Artificial Urinary Sphincter Placement: An Analysis of 1082 Cases at Mayo Clinic.

    PubMed

    Linder, Brian J; Rivera, Marcelino E; Ziegelmann, Matthew J; Elliott, Daniel S

    2015-09-01

    To evaluate long-term device outcomes following primary artificial urinary sphincter (AUS) implantation. We identified 1802 male patients with stress urinary incontinence that underwent AUS placement from 1983 to 2011. Of these, 1082 (60%) were involving primary implantations and comprise the study cohort. Multiple clinical and surgical variables were evaluated for potential association with treatment failure, defined as any secondary surgery. Patient follow-up was obtained through office examination, operative report, and written or telephone correspondence. Patients undergoing AUS implantation had a median age of 71 years (interquartile range 66-76) and median follow-up of 4.1 years (interquartile range 0.8-7.7). Overall, 338 of 1082 patients (31.2%) underwent secondary surgery, including 89 for device infection and/or erosion, 131 for device malfunction, 89 for urethral atrophy, and 29 for pump malposition or tubing complications. No patient-related risk factors were independently associated with an increased risk of secondary surgery on multivariable analysis. Secondary surgery-free survival was 90% at 1 year, 74% at 5 years, 57% at 10 years, and 41% at 15 years. Primary AUS implantation is associated with acceptable long-term outcomes. Recognition of long-term success is important for preoperative patient counseling. Copyright © 2015 Elsevier Inc. All rights reserved.

  6. Comparison of fatty liver index with noninvasive methods for steatosis detection and quantification

    PubMed Central

    Zelber-Sagi, Shira; Webb, Muriel; Assy, Nimer; Blendis, Laurie; Yeshua, Hanny; Leshno, Moshe; Ratziu, Vlad; Halpern, Zamir; Oren, Ran; Santo, Erwin

    2013-01-01

    AIM: To compare noninvasive methods presently used for steatosis detection and quantification in nonalcoholic fatty liver disease (NAFLD). METHODS: Cross-sectional study of subjects from the general population, a subgroup from the First Israeli National Health Survey, without excessive alcohol consumption or viral hepatitis. All subjects underwent anthropometric measurements and fasting blood tests. Evaluation of liver fat was performed using four noninvasive methods: the SteatoTest; the fatty liver index (FLI); regular abdominal ultrasound (AUS); and the hepatorenal ultrasound index (HRI). Two of the noninvasive methods have been validated vs liver biopsy and were considered as the reference methods: the HRI, the ratio between the median brightness level of the liver and right kidney cortex; and the SteatoTest, a biochemical surrogate marker of liver steatosis. The FLI is calculated by an algorithm based on triglycerides, body mass index, γ-glutamyl-transpeptidase and waist circumference, that has been validated only vs AUS. FLI < 30 rules out and FLI ≥ 60 rules in fatty liver. RESULTS: Three hundred and thirty-eight volunteers met the inclusion and exclusion criteria and had valid tests. The prevalence rate of NAFLD was 31.1% according to AUS. The FLI was very strongly correlated with SteatoTest (r = 0.91, P < 0.001) and to a lesser but significant degree with HRI (r = 0.55, P < 0.001). HRI and SteatoTest were significantly correlated (r = 0.52, P < 0.001). The κ between diagnosis of fatty liver by SteatoTest (≥ S2) and by FLI (≥ 60) was 0.74, which represented good agreement. The sensitivity of FLI vs SteatoTest was 85.5%, specificity 92.6%, positive predictive value (PPV) 74.7%, and negative predictive value (NPV) 96.1%. Most subjects (84.2%) with FLI < 60 had S0 and none had S3-S4. The κ between diagnosis of fatty liver by HRI (≥ 1.5) and by FLI (≥ 60) was 0.43, which represented only moderate agreement. The sensitivity of FLI vs HRI was 56

  7. Identification and mapping of stable QTL with main and epistasis effect on rice grain yield under upland drought stress

    PubMed Central

    2014-01-01

    Background Drought is one of the most important abiotic stresses that cause drastic reduction in rice grain yield (GY) in rainfed environments. The identification and introgression of QTL leading to high GY under drought have been advocated to be the preferred breeding strategy to improve drought tolerance of popular rice varieties. Genetic control of GY under reproductive-stage drought stress (RS) was studied in two BC1F4 mapping populations derived from crosses of Kali Aus, a drought-tolerant aus cultivar, with high-yielding popular varieties MTU1010 and IR64. The aim was to identify QTL for GY under RS that show a large and consistent effect for the trait. Bulk segregant analysis (BSA) was used to identify significant markers putatively linked with high GY under drought. Results QTL analysis revealed major-effect GY QTL: qDTY 1.2 , qDTY 2.2 and qDTY 1.3 , qDTY 2.3 (DTY; Drought grain yield) under drought consistently over two seasons in Kali Aus/2*MTU1010 and Kali Aus/2*IR64 populations, respectively. qDTY 1.2 and qDTY 2.2 explained an additive effect of 288 kg ha−1 and 567 kg ha−1 in Kali Aus/2*MTU1010, whereas qDTY 1.3 and qDTY 2.3 explained an additive effect of 198 kg ha−1 and 147 kg ha−1 in Kali Aus/2*IR64 populations, respectively. Epistatic interaction was observed for DTF (days to flowering) between regions on chromosome 2 flanked by markers RM154–RM324 and RM263–RM573 and major epistatic QTL for GY showing interaction between genomic locations on chromosome 1 at marker interval RM488–RM315 and chromosome 2 at RM324–RM263 in 2012 DS and 2013 DS RS in Kali Aus/2*IR64 mapping populations. Conclusion The QTL, qDTY 1.2 , qDTY 1.3 , qDTY 2.2 , and qDTY 2.3, identified in this study can be used to improve GY of mega varieties MTU1010 and IR64 under different degrees of severity of drought stress through marker-aided backcrossing and provide farmers with improved varieties that effectively combine high yield potential with good yield

  8. An Argument for Consolidation: The ANZUS Carrier Task Force

    DTIC Science & Technology

    2012-06-05

    the USN, assisting U.S. and NATO forces in Operation SLIPPER 18 by providing MSO (including counter piracy and counter-terrorism) as part of the...continues to be a key foreign policy objective of AUS.” 33 At AUSMIN 2010 (AUS-US Ministerial Consultations), the principal forum for bilateral...force tailored specifically to meet the concerns of the IP at a shared price and draw up a force-structure framework. In addition to the CVN, a

  9. Rosazea-Management: Update über allgemeine Maßnahmen und topische Therapieoptionen.

    PubMed

    Schaller, M; Schöfer, H; Homey, B; Hofmann, M; Gieler, U; Lehmann, P; Luger, T A; Ruzicka, T; Steinhoff, M

    2016-12-01

    Obwohl bislang für die Rosazea keine kurative Therapie besteht, können verschiedene Optionen zur Behandlung der Symptome und zur Vorbeugung von Exazerbationen empfohlen werden. Neben Selbsthilfemaßnahme wie der Vermeidung von Triggerfaktoren und einer geeigneten Hautpflege sollte das Rosazea-Management bei Patienten mit erythematöser und leichter bis schwerer papulopustulöser Rosazea die Anwendung topischer Präparate als First-Line-Therapie umfassen. Da Überlappungen der charakteristischen Rosazea-Symptome im klinischen Alltag die Regel sind, sollte die medikamentöse Therapie auf die individuellen Symptome zugeschnitten werden; auch eine Kombinationstherapie kann erforderlich sein. Zu den für die Behandlung der Hauptsymptome der Rosazea zugelassenen Wirkstoffen gehören Brimonidin gegen das Erythem sowie Ivermectin, Metronidazol oder Azelainsäure gegen entzündliche Läsionen. Ihre Wirksamkeit wurde in zahlreichen validen, gut kontrollierten Studien belegt. Darüber hinaus existieren verschiedene nicht zugelassene topische Behandlungsmöglichkeiten, deren Wirksamkeit und Sicherheit noch in größeren, kontrollierten Studien zu untersuchen ist. © 2016 Deutsche Dermatologische Gesellschaft (DDG). Published by John Wiley & Sons Ltd.

  10. Successful Completion of the Pilot Phase of a Randomized Controlled Trial Comparing Sentinel Lymph Node Biopsy to No Further Axillary Staging in Patients with Clinical T1-T2 N0 Breast Cancer and Normal Axillary Ultrasound.

    PubMed

    Cyr, Amy E; Tucker, Natalia; Ademuyiwa, Foluso; Margenthaler, Julie A; Aft, Rebecca L; Eberlein, Timothy J; Appleton, Catherine M; Zoberi, Imran; Thomas, Maria A; Gao, Feng; Gillanders, William E

    2016-08-01

    Axillary surgery is not considered therapeutic in patients with clinical T1-T2 N0 breast cancer. The importance of axillary staging is eroding in an era in which tumor biology, as defined by biomarker and gene expression profile, is increasingly important in medical decision making. We hypothesized that axillary ultrasound (AUS) is a noninvasive alternative to sentinel lymph node biopsy (SLNB), and AUS could replace SLNB without compromising patient care. Patients with clinical T1-T2 N0 breast cancer and normal AUS were eligible for enrollment. Subjects were randomized to no further axillary staging (arm 1) vs SLNB (arm 2). Descriptive statistics were used to describe the results of the pilot phase of the randomized controlled trial. Sixty-eight subjects were enrolled in the pilot phase of the trial (34 subjects in arm 1, no further staging; 32 subjects in arm 2, SLNB; and 2 subjects voluntarily withdrew from the trial). The median age was 61 years (range 40 to 80 years) in arm 1 and 59 years (range 31 to 81 years) in arm 2, and there were no significant clinical or pathologic differences between the arms. Median follow-up was 17 months (range 1 to 32 months). The negative predictive value (NPV) of AUS for identification of clinically significant axillary disease (>2.0 mm) was 96.9%. No axillary recurrences have been observed in either arm. Successful completion of the pilot phase of the randomized controlled trial confirms the feasibility of the study design, and provides prospective evidence supporting the ability of AUS to exclude clinically significant disease in the axilla. The results provide strong support for a phase 2 randomized controlled trial. Copyright © 2016 American College of Surgeons. Published by Elsevier Inc. All rights reserved.

  11. Cost-effectiveness of diet and exercise interventions to reduce overweight and obesity.

    PubMed

    Forster, M; Veerman, J L; Barendregt, J J; Vos, T

    2011-08-01

    To analyze whether two dietary weight loss interventions--the dietary approaches to stop hypertension (DASH) program and a low-fat diet program--would be cost-effective in Australia, and to assess their potential to reduce the disease burden related to excess body weight. We constructed a multi-state life-table-based Markov model in which the distribution of body weight influences the incidence of stroke, ischemic heart disease, hypertensive heart disease, diabetes mellitus, osteoarthritis, post-menopausal breast cancer, colon cancer, endometrial cancer and kidney cancer. The target population was the overweight and obese adult population in Australia in 2003. We used a lifetime horizon for health effects and costs, and a health sector perspective for costs. We populated the model with data identified from Medline and Cochrane searches, Australian Bureau of Statistics published catalogues, Australian Institute of Health and Welfare, and Department of Health and Ageing. Disability adjusted life years (DALYs) averted, incremental cost-effectiveness ratios (ICERs) and proportions of disease burden avoided. ICERs under AUS$50,000 per DALY are considered cost-effective. The DASH and low-fat diet programs have ICERs of AUS$12,000 per DALY (95% uncertainty range: Cost-saving- 68,000) and AUS$13,000 per DALY (Cost-saving--130,000), respectively. Neither intervention reduced the body weight-related disease burden at population level by more than 0.1%. The sensitivity analysis showed that when participants' costs for time and travel are included, the ICERs increase to AUS$75,000 per DALY for DASH and AUS$49,000 per DALY for the low-fat diet. Modest weight loss during the interventions, post-intervention weight regain and low participation limit the health benefits. Diet and exercise interventions to reduce obesity are potentially cost-effective but have a negligible impact on the total body weight-related disease burden.

  12. Co-movement measure of information transmission on international equity markets

    NASA Astrophysics Data System (ADS)

    Al Rahahleh, Naseem; Bhatti, M. Ishaq

    2017-03-01

    Recently, Bhatti and Nguyen (2012) used EVT and various stochastic copulas to study the cross-country co-movements diversification and asset pricing allocation. Weiss (2013) observed that Dynamic Conditional Correlation (DCC) models outperform various copula models. This paper attempts to contribute to the literature on multivariate models for capturing forward and backward return co-movement, spillover effects and volatility linkages. It reflects cross-country forward and backward co-movements more clearly among various coupled international stock markets relating to information transmission and price discovery for making investment decisions. Given the reality of fat-tail or skewed distribution of financial data, this paper proposes the use of VECM-DCC and VAR-DCC models which capture dynamic dependences between the Australian and other selected international financial stock markets. We observe that the return co-movement effects between Australian and Asian countries are bidirectional ((AUS ↔ Hong Kong), (AUS ↔ Japan)) with the exception of Taiwan (AUS → Taiwan). We also observe that the volatility spillover between the Australian and both the UK and the US markets are bidirectional with a larger volatility spillover from both toward the AUS market. Further, the UK market has a higher volatility spillover on the Australian market compared to the US market and the US market has a higher volatility spillover on the UK than that of the Australian market.

  13. Endoscopic ultrasonography in chronic pancreatitis: a comparative prospective study with conventional ultrasonography, computed tomography, and ERCP.

    PubMed

    Buscail, L; Escourrou, J; Moreau, J; Delvaux, M; Louvel, D; Lapeyre, F; Tregant, P; Frexinos, J

    1995-04-01

    The usefulness and accuracy rate of endoscopic ultrasonography (EUS) in the diagnosis of chronic pancreatitis (CP) were prospectively evaluated in 81 patients with suspected pancreatic disease. All underwent EUS, abdominal ultrasonography (AUS), and computed tomography (CT), and endoscopic retrograde cholangiopancreatography (ERCP) was performed in 55 of the cases. The diagnosis of CP was established in 44 patients (CP group) including 24 with a calcified form. No pancreatic disease was observed in 18 patients (control group), and 19 patients had a pancreatic tumor. In the CP group AUS was less accurate than EUS in visualizing the pancreas, performances of CT scan being identical to EUS in this respect. A good correlation was observed between EUS and ERCP for visualization and measurement of the Wirsung duct. The most significant changes observed by EUS in the CP group were dilatation of the main pancreatic duct, heterogeneous echogenicity of the pancreatic parenchyma, and cysts < 20 mm in size even in noncalcified CP or with normal pancreatograms. Sensitivity of EUS for diagnosis of CP was 88% (AUS, 58%; ERCP, 74%; CT scan, 75%), the specificity being 100% for ERCP and EUS, 95% for CT scan, and 75% for AUS. The good performances of EUS allow early diagnosis of CP in symptomatic patients since heterogeneous echogenicity of the pancreatic parenchyma seems to be almost specifically associated with the disease.

  14. The nursing and financial implications of laparoscopic colorectal surgery: data from a randomized controlled trial.

    PubMed

    Norwood, M G A; Stephens, J H; Hewett, P J

    2011-11-01

    The issue of cost effectiveness of laparoscopic surgery remains uncertain and its impact on the ward nursing staff is unaddressed. This study investigated these issues using patients from a single centre admitted to a randomized controlled trial. All patients recruited into the Australasian Laparoscopic Colon Cancer Study (ALCCaS) from The Queen Elizabeth Hospital between January 1999 and March 2005 were included in this study. Data relating to hospital cost were collated from the Hospital Patient Costing System. Nursing interventions were calculated in minutes per patient, using the excelcare Software database. Data from 97 patients were analysed (laparoscopy, 53; open surgery, 44). The median number of hours of nursing input per patient was 80 (27.5-907) h in the open surgery group and 58.5 (15-684.5) h in the laparoscopy group. This difference was further increased after exclusion of patients converted from laparoscopy to open surgery. The median total cost of the procedure was AUS $9698/£ 5631 (AUS $3862-90,397) in the open surgery group and AUS $10,951/£ 6219 (AUS$2337-66,237) in the laparoscopy group. These data suggest that laparoscopic colorectal surgery is equivalent in price to open surgery and there may be added benefits in reduced nursing intensity. © 2011 The Authors. Colorectal Disease © 2011 The Association of Coloproctology of Great Britain and Ireland.

  15. Smoking is associated with increased hepatic lipase activity, insulin resistance, dyslipidaemia and early atherosclerosis in Type 2 diabetes.

    PubMed

    Kong, C; Nimmo, L; Elatrozy, T; Anyaoku, V; Hughes, C; Robinson, S; Richmond, W; Elkeles, R S

    2001-06-01

    We have studied the relationships between hepatic lipase activity, smoking, dyslipidaemia insulin resistance, and early atherosclerosis in 67 Type 2 diabetic subjects, 47 non-smokers and 20 smokers. Insulin resistance was measured using an insulin modified frequently sampled intravenous glucose tolerance test. Early atherosclerosis was assessed using high-resolution ultrasound to measure carotid intima media thickness (IMT) and an arterial ultrasonic score (AUS). Smokers had higher serum cholesterol and triglyceride, lower HDL and HDL2 cholesterol as well as increased hepatic lipase activity. They were also more insulin resistant than non-smokers. Smokers also had higher patient AUS scores. On multiple regression analysis, hepatic lipase activity emerged as the most significant variable affecting patient AUS. We suggest that smoking accentuates the dyslipidaemia of Type 2 diabetic subjects and this is associated with increased hepatic lipase activity. This may be one mechanism whereby smoking further increases the risk of cardiovascular disease in Type 2 diabetes.

  16. Isomorphism and solid solutions among Ag- and Au-selenides

    NASA Astrophysics Data System (ADS)

    Palyanova, Galina A.; Seryotkin, Yurii V.; Kokh, Konstantin A.; Bakakin, Vladimir V.

    2016-09-01

    Au-Ag selenides were synthesized by heating stoichiometric mixtures of elementary substances of initial compositions Ag2-xAuxSe with a step of х=0.25 (0≤х≤2) to 1050 °С and annealing at 500 °C. Scanning electron microscopy, optical microscopy, electron microprobe analysis and X-ray powder diffraction methods have been applied to study synthesized samples. Results of studies of synthesized products revealed the existence of three solid solutions with limited isomorphism Ag↔Au: naumannite Ag2Se - Ag1.94Au0.06Se, fischesserite Ag3AuSe2 - Ag3.2Au0.8Se2 and gold selenide AuSe - Au0.94Ag0.06Se. Solid solutions and AgAuSe phases were added to the phase diagram of Ag-Au-Se system. Crystal-chemical interpretation of Ag-Au isomorphism in selenides was made on the basis of structural features of fischesserite, naumannite, and AuSe.

  17. Einführung

    NASA Astrophysics Data System (ADS)

    Wellenreuther, Günter; Zastrow, Dieter

    Reale Aufgaben der Automatisierungstechnik sind im Allgemeinen sehr komplex. Als umfassender Ausdruck für Steuerungs-, Regelungs- und Visualisierungs-Vorgänge hat sich der Begriff der Automatisierung durchgesetzt. Er beinhaltet, dass Automatisierungsgeräte selbsttätig Programme befolgen und dabei Entscheidungen auf Grund vorgegebener Führungsgrößen und rückgeführter Prozessgrößen aus der Anlage sowie erforderlicher Daten aus internen Speichern des Systems treffen, um daraus notwendige Ausgangsgrößen für den Betriebsprozess zu bilden.

  18. Thyroid fine-needle aspiration reporting rates and outcomes before and after Bethesda implementation within a combined academic and community hospital system.

    PubMed

    Harvey, Aaron M; Mody, Dina R; Amrikachi, Mojgan

    2013-11-01

    The current study compares data from our hospital system before and after the 2008 implementation of the Bethesda System for Reporting Thyroid Cytology (BSRTC). To show the effects the BSRTC has had on the reporting rates and outcomes for thyroid lesions. A search for thyroid fine-needle aspiration biopsies (FNABs) was performed for 2002-2005 (before BSRTC) and 2009-2011 (after BSRTC). Diagnostic outcomes were reviewed for cases with available follow-up. For 2002-2005, cytology reports for 3302 thyroid FNABs were reviewed, and 309 (9.4%) were classified as suspicious. For 2009-2011, cytology reports for 3432 thyroid FNABs were reviewed; 72 (2.1%) were classified as "atypia of undetermined significance or follicular lesion of undetermined significance" (AUS/FLUS), and 142 (4.1%) were classified as suspicious. Follow-up material was available for 31 AUS/FLUS cases (43.0%), and 6 of these cases (19%) were malignant. Follow-up material was available for 60 cases (42.3%) classified as suspicious, and 23 of these cases (38%) were malignant. The AUS/FLUS rate of 2.1% at our institution is at the lower range of the <7% recommended by the BSRTC, and our rate of 19% for risk of malignancy for AUS/FLUS is slightly above the BSRTC recommendation of 5% to 15%. Implementation of the BSRTC did not significantly affect our institution's reporting rates, most likely because an essentially similar classification system was employed before implementation of the BSRTC.

  19. Verbesserte Visualisierung der Koronararterien in MSCT-Daten mit direkter Vergleichbarkeit zur Angiographie

    NASA Astrophysics Data System (ADS)

    Lacalli, Christina; Jähne, Marion; Wesarg, Stefan

    In diesem Beitrag stellen wir neue, automatisierte Verfahren zur Visualisierung der Koronararterien einerseits und für eine direkte Vergleichbarkeit mit konventionellen Angiogrammen andererseits vor. Unser Ansatz umfasst Methoden für die automatische Extraktion des Herzens aus kontrastverstärkten CT-Daten, sowie für die Maskierung grosser kontrastmittelgefüllter Kavitäten des Herzens, um die Sichtbarkeit der Koronararterien bei der Darstellung mittels Volumenrendering zu verbessern. Zum direkten Vergleich mit konventionellen Angiographien wurde ein Verfahren zur automatischen Generierung von Projektionsansichten aus den CT-Daten entwickelt.

  20. The Impact of Diabetes Mellitus and Obesity on Artificial Urinary Sphincter Outcomes in Men.

    PubMed

    Viers, Boyd R; Linder, Brian J; Rivera, Marcelino E; Andrews, Jack R; Rangel, Laureano J; Ziegelmann, Matthew J; Elliott, Daniel S

    2016-12-01

    To evaluate the impact of diabetes and obesity on artificial urinary sphincter (AUS) outcomes. From 1987 to 2011, men with available diabetes and body mass index (BMI) information (568 of 954) undergoing primary AUS placement at our institution were evaluated. The incidence of all-cause reintervention, mechanical failure, atrophy, and erosion or infection was assessed using the Kaplan-Meier method. Multivariable analyses evaluated the association between clinical characteristics and AUS outcomes. In total, 90 (16%) men had diabetes. Median follow-up among alive men without AUS event was 5.9 years. Diabetics had a greater 5-year incidence of erosion/infection (13% vs 8%; P = .025). On multivariable analysis, diabetes was independently associated with an increased risk of erosion/infection (hazard ratio [HR] = 2.26; P = .02); whereas greater BMI was associated with a reduced risk of erosion or infection (obese: HR = 0.39; P = .02; overweight: HR = 0.57; P = .07). Accordingly, in diabetics, greater average postoperative glucose level (176 mg/dL vs 153 mg/dL; P = .04) and use of nonantibiotic coated devices (13 of 62 vs 1 of 28; P = .035) was associated with a greater incidence of erosion or infection. There was no difference in social continence (≤1 pad/day) (45% vs 57%; P = .29) or high-level satisfaction (95% vs 90%; P = .43) among diabetics vs nondiabetics. However, with greater BMI (<25, 25 to <30, and ≥30), there was a decrease in ≤1 pad/day usage (62% vs 61% vs 49%; P = .02). We found that the presence of diabetes was independently associated with a 2.3-fold increased risk of AUS erosion or infection. These findings warrant the consideration of additional periprocedural measures to reduce the risk of this devastating complication. Copyright © 2016 Elsevier Inc. All rights reserved.

  1. Water and Proppant Requirements and Water Production Associated with Undiscovered Petroleum in the Bakken and Three Forks Formations, North Dakota and Montana, USA

    NASA Astrophysics Data System (ADS)

    Haines, S. S.; Varela, B. A.; Thamke, J.; Hawkins, S. J.; Gianoutsos, N. J.; Tennyson, M. E.

    2017-12-01

    Water is used for several stages of oil and gas production, in particular for hydraulic fracturing that is typically used during production of petroleum from low-permeability shales and other rock types (referred to as "continuous" petroleum accumulations). Proppant, often sand, is also consumed during hydraulic fracturing. Water is then produced from the reservoir along with the oil and gas, representing either a disposal consideration or a possible source of water for further petroleum development or other purposes. The U.S. Geological Survey (USGS) has developed an approach for regional-scale estimation of these water and proppant quantities in order to provide an improved understanding of possible impacts and to help with planning and decision-making. Using the new methodology, the USGS has conducted a quantitative assessment of water and proppant requirements, and water production volumes, associated with associated with possible future production of undiscovered petroleum resources in the Bakken and Three Forks Formations, Williston Basin, USA. This water and proppant assessment builds directly from the 2013 USGS petroleum assessment for the Bakken and Three Forks Formations. USGS petroleum assessments incorporate all available geologic and petroleum production information, and include the definition of assessment units (AUs) that specify the geographic regions and geologic formations for the assessment. The 2013 petroleum assessment included 5 continuous AUs for the Bakken Formation and one continuous AU for the Three Forks Formation. The assessment inputs are defined probabilistically, and a Monte Carlo approach provides outputs that include uncertainty bounds. We can summarize the assessment outputs with the mean values of the associated distributions. The mean estimated total volume of water for well drilling and cement for all six continuous AUs is 5.9 billion gallons, and the mean estimated volume of water for hydraulic fracturing for all AUs is 164

  2. Facial expressions and speech acts: experimental evidences on the role of the upper face as an illocutionary force indicating device in language comprehension.

    PubMed

    Domaneschi, Filippo; Passarelli, Marcello; Chiorri, Carlo

    2017-08-01

    Language scientists have broadly addressed the problem of explaining how language users recognize the kind of speech act performed by a speaker uttering a sentence in a particular context. They have done so by investigating the role played by the illocutionary force indicating devices (IFIDs), i.e., all linguistic elements that indicate the illocutionary force of an utterance. The present work takes a first step in the direction of an experimental investigation of non-verbal IFIDs because it investigates the role played by facial expressions and, in particular, of upper-face action units (AUs) in the comprehension of three basic types of illocutionary force: assertions, questions, and orders. The results from a pilot experiment on production and two comprehension experiments showed that (1) certain upper-face AUs seem to constitute non-verbal signals that contribute to the understanding of the illocutionary force of questions and orders; (2) assertions are not expected to be marked by any upper-face AU; (3) some upper-face AUs can be associated, with different degrees of compatibility, with both questions and orders.

  3. ProCare Trial: a phase II randomized controlled trial of shared care for follow-up of men with prostate cancer.

    PubMed

    Emery, Jon D; Jefford, Michael; King, Madeleine; Hayne, Dickon; Martin, Andrew; Doorey, Juanita; Hyatt, Amelia; Habgood, Emily; Lim, Tee; Hawks, Cynthia; Pirotta, Marie; Trevena, Lyndal; Schofield, Penelope

    2017-03-01

    To test the feasibility and efficacy of a multifaceted model of shared care for men after completion of treatment for prostate cancer. Men who had completed treatment for low- to moderate-risk prostate cancer within the previous 8 weeks were eligible. Participants were randomized to usual care or shared care. Shared care entailed substituting two hospital visits with three visits in primary care, a survivorship care plan, recall and reminders, and screening for distress and unmet needs. Outcome measures included psychological distress, prostate cancer-specific quality of life, satisfaction and preferences for care and healthcare resource use. A total of 88 men were randomized (shared care n = 45; usual care n = 43). There were no clinically important or statistically significant differences between groups with regard to distress, prostate cancer-specific quality of life or satisfaction with care. At the end of the trial, men in the intervention group were significantly more likely to prefer a shared care model to hospital follow-up than those in the control group (intervention 63% vs control 24%; P<0.001). There was high compliance with prostate-specific antigen monitoring in both groups. The shared care model was cheaper than usual care (shared care AUS$1411; usual care AUS$1728; difference AUS$323 [plausible range AUS$91-554]). Well-structured shared care for men with low- to moderate-risk prostate cancer is feasible and appears to produce clinically similar outcomes to those of standard care, at a lower cost. © 2016 The Authors BJU International © 2016 BJU International Published by John Wiley & Sons Ltd.

  4. The sensitivity of pre-operative axillary staging in breast cancer: comparison of invasive lobular and ductal carcinoma.

    PubMed

    Topps, A; Clay, V; Absar, M; Howe, M; Lim, Y; Johnson, R; Bundred, N

    2014-07-01

    Axillary ultrasound (AUS) with fine-needle aspiration (FNA) biopsy of abnormal lymph nodes is important for pre-operative staging and planning the surgical management of the axilla. Invasive lobular carcinoma (ILC) metastases are thought to be difficult to detect because the cells are small and on cytology resemble lymphocytes. To investigate this we directly compared the sensitivity of pre-operative axillary staging between ILC and invasive ductal carcinoma (IDC). Consecutive patients that presented in a single breast unit with pure IDC between April 2005 and December 2006 and pure ILC between January 2008 and December 2012 were retrospectively identified from pathology records. Pre-operative axillary ultrasound and FNA biopsy results were compared with post-operative histopathology from the sentinel node biopsy (SNB) or axillary lymph node dissection (ALND). A total of 275 and 142 axillae were identified in the IDC and ILC groups respectively. In the node positive patients there was no significant difference in the sensitivity of AUS (IDC vs. ILC; 58.7% vs. 52.8%). However, there was a significant difference in the sensitivity of ultrasound-guided FNA biopsy of abnormal nodes (IDC vs. ILC; 98.4% vs. 53.6%; p < 0.001). AUS has comparative sensitivities between IDC and ILC populations. In contrast, FNA biopsy of abnormal axillary nodes is clearly less sensitive in the ILC group. In these patients, who have abnormal AUS, we suggest that a core biopsy is required to improve the pre-operative staging and prevent unnecessary surgical procedures. Copyright © 2014 Elsevier Ltd. All rights reserved.

  5. High submuscular placement of urologic prosthetic balloons and reservoirs via transscrotal approach.

    PubMed

    Morey, Allen F; Cefalu, Christopher A; Hudak, Steven J

    2013-02-01

    Traditional placement of inflatable penile prosthesis (IPP) reservoirs and/or artificial urinary sphincter (AUS) balloons into the space of Retzius may be challenging following major pelvic surgery. The aim of this study is to report our 1-year experience using a novel technique for high balloon/reservoir placement beneath the rectus abdominus muscle, thus completely obviating deep pelvic dissection during prosthetic urologic surgery. A retrospective review of all patients who underwent IPP and/or AUS placement between June 2011 and June 2012 was performed. All had AUS balloons and/or IPP reservoirs placed in a submuscular location by bluntly tunneling through the external inguinal ring into a potential space between the transversalis fascia and the rectus abdominus muscle using a long, angled, lung grasping clamp. Patient demographics, perioperative outcomes, and initial follow-up patient-reported outcomes were reviewed. During the study period, 120 submuscular balloons/reservoirs were inserted in 107 consecutive patients who underwent placement of an IPP (61 patients), AUS (33 patients), or both (13 patients). Among our 48 most recent patients, 41 (85%) reported they were totally unable to feel their balloon/reservoir, and all but two patients reported no bother from the submuscular balloon/reservoir placement. Of the 120 total submuscular balloons and reservoirs, surgical time and outcomes of the prosthetic procedures appeared similar to those placed using traditional methods; two reservoirs required revision surgery for repositioning. High submuscular placement of genitourinary prosthetic balloons and reservoirs via a transscrotal approach is both safely and effective, while avoiding deep retropubic dissection. © 2012 International Society for Sexual Medicine.

  6. Artificial urinary sphincter revision for urethral atrophy: Comparing single cuff downsizing and tandem cuff placement.

    PubMed

    Linder, Brian J; Viers, Boyd R; Ziegelmann, Matthew J; Rivera, Marcelino E; Elliott, Daniel S

    2017-01-01

    To compare outcomes for single urethral cuff downsizing versus tandem cuff placement during artificial urinary sphincter (AUS) revision for urethral atrophy. We identified 1778 AUS surgeries performed at our institution from 1990-2014. Of these, 406 were first AUS revisions, including 69 revisions for urethral atrophy. Multiple clinical and surgical variables were evaluated for potential association with device outcomes following revision, including surgical revision strategy (downsizing a single urethral cuff versus placing tandem urethral cuffs). Of the 69 revision surgeries for urethral atrophy at our institution, 56 (82%) were tandem cuff placements, 12 (18%) were single cuff downsizings and one was relocation of a single cuff. When comparing tandem cuff placements and single cuff downsizings, the cohorts were similar with regard to age (p=0.98), body-mass index (p=0.95), prior pelvic radiation exposure (p=0.73) and length of follow-up (p=0.12). Notably, there was no difference in 3-year overall device survival compared between single cuff and tandem cuff revisions (60% versus 76%, p=0.94). Likewise, no significant difference was identified for tandem cuff placement (ref. single cuff) when evaluating the risk of any tertiary surgery (HR 0.95, 95% CI 0.32-4.12, p=0.94) or urethral erosion/device infection following revision (HR 0.79, 95% CI 0.20-5.22, p=0.77). There was no significant difference in overall device survival in patients undergoing single cuff downsizing or tandem cuff placement during AUS revision for urethral atrophy. Copyright® by the International Brazilian Journal of Urology.

  7. Rice Root Architectural Plasticity Traits and Genetic Regions for Adaptability to Variable Cultivation and Stress Conditions1[OPEN

    PubMed Central

    Sandhu, Nitika; Raman, K. Anitha; Torres, Rolando O.; Audebert, Alain; Dardou, Audrey; Kumar, Arvind; Henry, Amelia

    2016-01-01

    Future rice (Oryza sativa) crops will likely experience a range of growth conditions, and root architectural plasticity will be an important characteristic to confer adaptability across variable environments. In this study, the relationship between root architectural plasticity and adaptability (i.e. yield stability) was evaluated in two traditional × improved rice populations (Aus 276 × MTU1010 and Kali Aus × MTU1010). Forty contrasting genotypes were grown in direct-seeded upland and transplanted lowland conditions with drought and drought + rewatered stress treatments in lysimeter and field studies and a low-phosphorus stress treatment in a Rhizoscope study. Relationships among root architectural plasticity for root dry weight, root length density, and percentage lateral roots with yield stability were identified. Selected genotypes that showed high yield stability also showed a high degree of root plasticity in response to both drought and low phosphorus. The two populations varied in the soil depth effect on root architectural plasticity traits, none of which resulted in reduced grain yield. Root architectural plasticity traits were related to 13 (Aus 276 population) and 21 (Kali Aus population) genetic loci, which were contributed by both the traditional donor parents and MTU1010. Three genomic loci were identified as hot spots with multiple root architectural plasticity traits in both populations, and one locus for both root architectural plasticity and grain yield was detected. These results suggest an important role of root architectural plasticity across future rice crop conditions and provide a starting point for marker-assisted selection for plasticity. PMID:27342311

  8. Quantenwelt im Nanozylinder: Elektronische Eigenschaften von Kohlenstoff-Nanoröhrchen

    NASA Astrophysics Data System (ADS)

    Strunk, Christoph

    2005-07-01

    Kohlenstoff-Nanoröhren sind einzelne oder mehrfach ineinander gesteckte molekulare Hohlzylinder. In ihnen bilden Kohlenstoffatome ein Graphit ähnliches Kristallgitter. Diese Fullerene zeichnen sich durch eine außerordentlich hohe Elastizität und Zugfestigkeit aus. In ihren elektronischen Eigenschaften verhalten sie sich entweder wie Halbleiter oder wie metallische Leiter. Aus halbleitenden Nanoröhren konnten bereits winzige Feldeffekttransistoren hergestellt werden, ein erster Schritt hin zu einer molekularen Elektronik. Die Grundlagenforscher interessiert vor allem das Verhalten metallischer Nanoröhren bei tiefen Temperaturen. An ihren elektronischen Systemen lassen sich zum Beispiel Quanteninterferenzphänomene oder Elektron-Elektron-Wechselwirkungen untersuchen.

  9. Flexible binding simulation by a novel and improved version of virtual-system coupled adaptive umbrella sampling

    NASA Astrophysics Data System (ADS)

    Dasgupta, Bhaskar; Nakamura, Haruki; Higo, Junichi

    2016-10-01

    Virtual-system coupled adaptive umbrella sampling (VAUS) enhances sampling along a reaction coordinate by using a virtual degree of freedom. However, VAUS and regular adaptive umbrella sampling (AUS) methods are yet computationally expensive. To decrease the computational burden further, improvements of VAUS for all-atom explicit solvent simulation are presented here. The improvements include probability distribution calculation by a Markov approximation; parameterization of biasing forces by iterative polynomial fitting; and force scaling. These when applied to study Ala-pentapeptide dimerization in explicit solvent showed advantage over regular AUS. By using improved VAUS larger biological systems are amenable.

  10. Cost-Effectiveness of Interventions to Promote Physical Activity: A Modelling Study

    PubMed Central

    Cobiac, Linda J.; Vos, Theo; Barendregt, Jan J.

    2009-01-01

    Background Physical inactivity is a key risk factor for chronic disease, but a growing number of people are not achieving the recommended levels of physical activity necessary for good health. Australians are no exception; despite Australia's image as a sporting nation, with success at the elite level, the majority of Australians do not get enough physical activity. There are many options for intervention, from individually tailored advice, such as counselling from a general practitioner, to population-wide approaches, such as mass media campaigns, but the most cost-effective mix of interventions is unknown. In this study we evaluate the cost-effectiveness of interventions to promote physical activity. Methods and Findings From evidence of intervention efficacy in the physical activity literature and evaluation of the health sector costs of intervention and disease treatment, we model the cost impacts and health outcomes of six physical activity interventions, over the lifetime of the Australian population. We then determine cost-effectiveness of each intervention against current practice for physical activity intervention in Australia and derive the optimal pathway for implementation. Based on current evidence of intervention effectiveness, the intervention programs that encourage use of pedometers (Dominant) and mass media-based community campaigns (Dominant) are the most cost-effective strategies to implement and are very likely to be cost-saving. The internet-based intervention program (AUS$3,000/DALY), the GP physical activity prescription program (AUS$12,000/DALY), and the program to encourage more active transport (AUS$20,000/DALY), although less likely to be cost-saving, have a high probability of being under a AUS$50,000 per DALY threshold. GP referral to an exercise physiologist (AUS$79,000/DALY) is the least cost-effective option if high time and travel costs for patients in screening and consulting an exercise physiologist are considered. Conclusions

  11. Selection of Atypia/Follicular Lesion of Unknown Significance Patients for Surgery Versus Active Surveillance, Without Using Genetic Testing: A Single Institute Experience, Prospective Analysis, and Recommendations.

    PubMed

    Cohen, Oded; Tzelnick, Sharon; Lahav, Yonatan; Schindel, Doron; Halperin, Doron; Yehuda, Moshe

    2017-07-01

    Atypia/follicular lesion of unknown significance (AUS/FLUS) has variable rates of malignancy. The recommended management includes active surveillance (AS), repeated fine-needle aspiration (RFNA), diagnostic surgery, or genetic testing for malignancy. The objective of this study was to assess the management of AUS/FLUS patients in a dedicated thyroid clinic without implementing genetic testing. This was a single institute cohort study of all patients aged ≥18 years who underwent ultrasound-guided FNA thyroid biopsies between January 2009 and January 2013 and were followed until January 2016. The median follow-up time was 4.6 years (range 3.2-6.8 years). Forty-eight (57%) patients were referred to AS, and 36 (43%) patients were referred for diagnostic surgery. Thirty-six (75%) patients from the AS group underwent RFNA. An additional eight patients from the AS group subsequently underwent diagnostic surgery. Malignancies were found in 15/44 (34%) diagnostic surgical samples, and benign cytologies were found in 61.1% of the RFNAs. Analysis of adherence to follow-up in the 36 AS patients showed an adherence rate of only 53%, with males tending to comply better than females did (31.6% vs. 5.8%, respectively; p = 0.052), especially males in their sixth decade of life. Genetic tests for AUS/FLUS patients are accepted today as complementary evaluations in many well-developed health systems. Yet, when these tests are not feasible due to financial or availability issues, careful management of AUS/FLUS patients may still offer good results in the selection of patients for surgery or AS. The present results also indicate that compliance to follow-up schedules is a major consideration when selecting patients for AS.

  12. Using brief self-reports and clinician scales to screen for substance use disorders in psychotic patients.

    PubMed

    Møller, Turid; Linaker, Olav M

    2010-04-01

    The aims of this study were to examine evidence for the concurrent validity of two self-report measures and two staff-report measures measuring alcohol and drug problems in seriously mentally ill people and to examine if psychotic patients under-report their alcohol and drug problems in an early intervention clinic. This is a cross-sectional study of 48 patients (26 inpatients and 22 outpatients) from an early intervention clinic for psychosis. To examine the sensitivity and specificity, we compared both the staff-report measures Clinical Alcohol Use Scale (AUS) and Clinical Drug Use Scale (DUS) and the self-report measures Short Michigan Alcohol Screening Test (SMAST-13) and Drug Abuse Screening Test (DAST-20), with the current ICD-10 diagnostic criteria as the gold-standard for alcohol and drug problems. To examine whether the patients under-report their alcohol and drug problems, we also compared the self-report measures SMAST-13 and DAST-20 with the staff-report measures AUS and DUS and ICD-10 consensus substance abuse diagnoses. The results show that the concurrent validity compared with ICD-10 diagnoses was moderate for both the staff-report measures AUS and DUS and for the self-report measures SMAST-13 and DAST-20. Three out of seven patients under-report alcohol problems and one patient out of seven under-report drug use problems according to consensus ICD-10 substance abuse diagnoses. We conclude that the SMAST-13 and DAST-20 in combination with the AUS and DUS, which are easy and quick to perform, are helpful in establishing a common understanding of the patient's alcohol and drug problems in an early intervention clinic.

  13. Revision of the types of male Sciaridae (Diptera) described from Australia by F.A.A. Skuse.

    PubMed

    Broadley, Adam; Kauschke, Ellen; Mohrig, Werner

    2016-11-17

    A total of 27 male sciarid types described by Skuse (1888 and 1890), held in the Australian National Insect Collection, Canberra, and the Australian Museum, Sydney, were remounted and examined microscopically. Of these, 25 species were described as Sciara Meigen, one as Zygoneura Meigen and one as Trichosia Winnertz. Revision of these species revealed the following: 13 species belong to the genus Bradysia Winnertz (B. amabilis, B. conjuncta, B. crassicornis, B. exsequialis, B. frequens, B. froggatti, B. luctifica, B. maesta, B. mastersi, B. ornatula, B. pernitida, B. pictipes, B. unica), 1 species to the genus Corynoptera Winnertz (C. minutela), 4 species to the genus Austrosciara Schmitz & Mjöberg (Aus. infrequens, Aus. montivaga, Aus. spectabilis, Aus. winnertzi), 2 species to the genus Pseudolycoriella Menzel & Mohrig (Psl. cavatica, Psl. ignobilis), 1 species to the genus Pseudozygomma Mohrig (Pseudoz. maculipennis), 1 species to the genus Sciara Meigen (Sc. tryoni), and 1 species to the genus Scythropochroa Enderlein (Scyth. macleayi). In total 26 species were new combinations. Eight species names were declared as new synonyms: Bradysia pictipes (Skuse, 1888) = Sciara notata Skuse, 1888 syn. n. and = Bradysia seticornis Vilkamaa, Hippa & Mohrig, 2012 (from New Caledonia) syn. n.; Bradysia conjuncta (Skuse, 1890) = Sciara serenipennis Skuse, 1890 syn. n.; Pseudolycoriella cavatica (Skuse, 1888) = Sciara familiaris Skuse, 1888 syn. n. and = Sciara festiva Skuse, 1888 syn. n.; Bradysia luctifica (Skuse, 1888) = Bradysia planistylata Vilkamaa, Hippa & Mohrig, 2012 syn. n.; Sciara tryoni Skuse, 1890 = Sciara insulana Vilkamaa, Hippa & Mohrig, 2015 syn. n. (both species are from New Caledonia); Austrosciara winnertzi (Skuse, 1888) = Sciara rufulenta Edwards, 1927 syn. n. (from New Zealand). Lectotype specimens were designated for 17 species in order to fix the names.

  14. Streamlined research funding using short proposals and accelerated peer review: an observational study.

    PubMed

    Barnett, Adrian G; Herbert, Danielle L; Campbell, Megan; Daly, Naomi; Roberts, Jason A; Mudge, Alison; Graves, Nicholas

    2015-02-07

    Despite the widely recognised importance of sustainable health care systems, health services research remains generally underfunded in Australia. The Australian Centre for Health Services Innovation (AusHSI) is funding health services research in the state of Queensland. AusHSI has developed a streamlined protocol for applying and awarding funding using a short proposal and accelerated peer review. An observational study of proposals for four health services research funding rounds from May 2012 to November 2013. A short proposal of less than 1,200 words was submitted using a secure web-based portal. The primary outcome measures are: time spent preparing proposals; a simplified scoring of grant proposals (reject, revise or accept for interview) by a scientific review committee; and progressing from submission to funding outcomes within eight weeks. Proposals outside of health services research were deemed ineligible. There were 228 eligible proposals across 4 funding rounds: from 29% to 79% were shortlisted and 9% to 32% were accepted for interview. Success rates increased from 6% (in 2012) to 16% (in 2013) of eligible proposals. Applicants were notified of the outcomes within two weeks from the interview; which was a maximum of eight weeks after the submission deadline. Applicants spent 7 days on average preparing their proposal. Applicants with a ranking of reject or revise received written feedback and suggested improvements for their proposals, and resubmissions composed one third of the 2013 rounds. The AusHSI funding scheme is a streamlined application process that has simplified the process of allocating health services research funding for both applicants and peer reviewers. The AusHSI process has minimised the time from submission to notification of funding outcomes.

  15. Automated and objective action coding of facial expressions in patients with acute facial palsy.

    PubMed

    Haase, Daniel; Minnigerode, Laura; Volk, Gerd Fabian; Denzler, Joachim; Guntinas-Lichius, Orlando

    2015-05-01

    Aim of the present observational single center study was to objectively assess facial function in patients with idiopathic facial palsy with a new computer-based system that automatically recognizes action units (AUs) defined by the Facial Action Coding System (FACS). Still photographs using posed facial expressions of 28 healthy subjects and of 299 patients with acute facial palsy were automatically analyzed for bilateral AU expression profiles. All palsies were graded with the House-Brackmann (HB) grading system and with the Stennert Index (SI). Changes of the AU profiles during follow-up were analyzed for 77 patients. The initial HB grading of all patients was 3.3 ± 1.2. SI at rest was 1.86 ± 1.3 and during motion 3.79 ± 4.3. Healthy subjects showed a significant AU asymmetry score of 21 ± 11 % and there was no significant difference to patients (p = 0.128). At initial examination of patients, the number of activated AUs was significantly lower on the paralyzed side than on the healthy side (p < 0.0001). The final examination for patients took place 4 ± 6 months post baseline. The number of activated AUs and the ratio between affected and healthy side increased significantly between baseline and final examination (both p < 0.0001). The asymmetry score decreased between baseline and final examination (p < 0.0001). The number of activated AUs on the healthy side did not change significantly (p = 0.779). Radical rethinking in facial grading is worthwhile: automated FACS delivers fast and objective global and regional data on facial motor function for use in clinical routine and clinical trials.

  16. Evolutionary origins of the emergent ST796 clone of vancomycin resistant Enterococcus faecium

    PubMed Central

    Buultjens, Andrew H.; Lam, Margaret M.C.; Ballard, Susan; Monk, Ian R.; Mahony, Andrew A.; Grabsch, Elizabeth A.; Grayson, M. Lindsay; Pang, Stanley; Coombs, Geoffrey W.; Robinson, J. Owen; Seemann, Torsten; Howden, Benjamin P.

    2017-01-01

    From early 2012, a novel clone of vancomycin resistant Enterococcus faecium (assigned the multi locus sequence type ST796) was simultaneously isolated from geographically separate hospitals in south eastern Australia and New Zealand. Here we describe the complete genome sequence of Ef_aus0233, a representative ST796 E. faecium isolate. We used PacBio single molecule real-time sequencing to establish a high quality, fully assembled genome comprising a circular chromosome of 2,888,087 bp and five plasmids. Comparison of Ef_aus0233 to other E. faecium genomes shows Ef_aus0233 is a member of the epidemic hospital-adapted lineage and has evolved from an ST555-like ancestral progenitor by the accumulation or modification of five mosaic plasmids and five putative prophage, acquisition of two cryptic genomic islands, accrued chromosomal single nucleotide polymorphisms and a 80 kb region of recombination, also gaining Tn1549 and Tn916, transposons conferring resistance to vancomycin and tetracycline respectively. The genomic dissection of this new clone presented here underscores the propensity of the hospital E. faecium lineage to change, presumably in response to the specific conditions of hospital and healthcare environments. PMID:28149688

  17. Cost effectiveness of brief interventions for reducing alcohol consumption.

    PubMed

    Wutzke, S E; Shiell, A; Gomel, M K; Conigrave, K M

    2001-03-01

    The direct costs and health effects of a primary-care-based brief intervention for hazardous alcohol consumption were examined. The total cost of the intervention was calculated from costs associated with: marketing the intervention programme; providing training and support in the use of the intervention materials; physician time required for providing brief advice for 'at-risk' drinkers. The effect of the intervention on health outcomes was expressed in terms of number of life years saved by preventing alcohol-related deaths. This was derived by combining estimates of the impact of the programme if it were implemented nationally with available evidence on the health effects of excess alcohol consumption. Results are based on international trial evidence showing the physical resources required by the intervention and its effectiveness combined with Australian price data. The costs associated with screening and brief advice using the current intervention programme range from Aus$19.14 to Aus$21.50. The marginal costs per additional life year saved were below Aus$1873. The robustness of the model used is supported by an extensive sensitivity analysis. In comparison with existing health promotion strategies the costs and effects of the current intervention are highly encouraging.

  18. A SERS characterization of the stability of polythionates at the gold-electrolyte interface

    NASA Astrophysics Data System (ADS)

    Mirza, Jeff; Smith, Scott R.; Baron, Janet Y.; Choi, Yeonuk; Lipkowski, Jacek

    2015-01-01

    A gold nanorod (AuNR) array electrode was employed to record SERS spectra as a function of immersion time in electrolyte solutions of tetrathionate, trithionate, the [Au(S2O3)2]3- complex, sulfide and thiosulfate. The generalized two-dimensional correlation spectroscopy was employed to deconvolute broad bands in the SERS spectra. The results show that the polythionates, tetrathionate and trithionate, sulfide, and the [Au(S2O3)2]3- complex decompose to form cyclo-S8, polymeric and monoatomic sulfur at the gold surface. The relative amount of these different forms of sulfur in the film formed at the surface depends on the nature of the electrolyte species. The decomposition of tetrathionate leads predominantly to the formation of cyclo-S8. Comparable amounts of all three forms of sulfur are formed in the solution of the [Au(S2O3)2]3- complex. Monoatomic sulfur is formed predominantly at the gold surface in solutions of trithionate and thiosulfate. In contrast to the previous suggestions, the results of this study demonstrate that polythionates are not present in the passive layer during gold leaching from thiosulfate solutions at a prolonged leaching times.

  19. Trends in der IT-Sicherheit

    NASA Astrophysics Data System (ADS)

    Eckert, Claudia

    Ich möchte Ihnen einen Überblick geben über Trends, Challenges, offene Fragestellungen sowie Lösungsansätze aus dem Bereich der IT-Sicherheit. Meine Vorredner haben mir schon eine wunderbare Basis dafür geschaffen, indem sie wichtige Trends im Bereich IT bereits angesprochen haben. Deshalb werde ich auf diese Trends, nämlich das Internet of Things and Services nur noch einmal kurz eingehen, um daran dann die IT-Sicherheitsthemen, die sich aus diesen IT-Trends ergeben, zu skizzieren und anschließend Lösungen vorstellen, die insbesondere im Forschungsumfeld entwickelt werden, aber schon reif sind, auch in die unternehmerische Praxis übernommen zu werden.

  20. Astronomie für Alle. Einführung in die Himmelsbeobachtung

    NASA Astrophysics Data System (ADS)

    Neckel, Thorsten; Neumann, Martin; Staude, Jakob

    2002-12-01

    Contents: Abenteuer Astronomie - Aufbruch zu fremden Welten. Orientierung am Himmel. Das Teleskop - Dein Blick ins All. Der Erdmond. Wir beobachten unseren Mond. Planeten - Unsere Nachbarn im All. Himmelsleuchten in dunkler Nacht - Das Zodiakallicht. Vagabunden im Sonnensystem. Meteore und Feuerkugeln. Meteorite - Faszinierende Materie aus dem Weltall. Kometen - Eisige Zeugen der Urzeit. Der hellste Stern an unserem Himmel. Auf der Sonne ist 'was los! Kosmische Schattenspiele - Sonnen- und Mondfinsternisse. Ferne Sonnen. Die Tiefen des Kosmos - Sternhaufen, Gasnebel und Galaxien. Astrophotographie mit stehender Kamera. Astrophotographie mit nachgeführter Kamera. Der Kosmos im Computer - Software für Hobbyastronomen. Signale aus dem Kosmos - Radioastronomie für Einsteiger.

  1. Meilensteine in der Erforschung der kompakten Objekte

    NASA Astrophysics Data System (ADS)

    Camenzind, Max

    Kompakte Objekte besitzen zum einen eine sehr hohe Dichte, und zum anderen sind sie durch die Tatsache charakterisiert, dass keine nuklearen Reaktionen mehr in ihrem Inneren stattfinden können. Aus diesem Grund können sie im Unterschied zu gewöhnlichen Sternen der Gravitation nicht mehr mit dem Druck des thermischen Gases widerstehen. In den Weißen Zwergen bzw. Neutronensternen wird der Gravitation der Quantendruck eines Elektronengases bzw. einer Neutronenflüssigkeit entgegengesetzt. Ein solches Gas besteht aus Elektronen bzw. Neutronen, die auf ihr niedrigstes Energieniveau zusammengepresst wurden. Durch die daraus resultierende hohe Bewegungsenergie der Fermionen wird der sogenannte Quantendruck erzeugt.

  2. Musik einpacken

    NASA Astrophysics Data System (ADS)

    Loos, Andreas

    Wer schon einmal Nudeln selbst gemacht hat, der weiß: Frische Pasta kann ganz schön pappen. Das ist ein Problem für die Nudelindustrie, denn es ist nicht leicht, mit unregelmäßigen und klebrigen Nudel-Klumpen 500-Gramm-Beutel genau zu füllen. Einige Hersteller verwenden daher "Teilmengenwaagen". Die besitzen bis zu hundert kleineWaagschalen, die über ein Förderband mit jeweils ungefähr 50 Gramm Nudel-Klumpen befüllt werden. Dann kommt Mathematik ins Spiel: Ein Computer wählt die zehn Waagschalen aus, deren Inhalt zusammen die 500 Gramm genau erreicht, und leert sie in einen Beutel aus.

  3. Unfälle mit Kleintransportern

    NASA Astrophysics Data System (ADS)

    Tschirschwitz, Christian

    Auf einer außerörtlichen Bundesstraße geriet ein mit vier Personen besetzter Pkw Toyota Corolla aus letztlich nicht vollständig geklärten Gründen ins Schleudern. Nachdem sich das Fahrzeug beträchtlich entgegen dem Uhrzeigersinn ausgedreht hatte, prallte ein entgegenkommender Kleintransporter VW T4 frontal an die rechte Flanke des Toyota. Der Transporter wurde gedreht, ausgehoben und durch einen Pkw Ford Escort unterfahren. Alle Fahrzeuge kamen in Kollisionsortnähe zum Endstand. Die vier Toyota-Insassen wurden getötet. Aus den anderen Fahrzeugen wurden sechs Personen überwiegend schwer verletzt. Unbeteiligte Zeugen waren nicht vorhanden.

  4. A cost effectiveness analysis of midwife psycho-education for fearful pregnant women - a health system perspective for the antenatal period.

    PubMed

    Toohill, J; Callander, E; Gamble, J; Creedy, D K; Fenwick, J

    2017-07-11

    Psycho-education can reduce childbirth fear and caesarean section numbers. This study determines the cost-effectiveness of a midwife-led psycho-education intervention for women fearful of birth. One thousand four hundred ten pregnant women in south-east Queensland, Australia were screened for childbirth fear (W-DEQ A ≥ 66). Women with high scores (n = 339) were randomised to the BELIEF Study (Birth Emotions and Looking to Improve Expectant Fear) to receive psycho-education (n = 170) at 24 and 34 weeks of pregnancy or to the control group (n = 169). Women in both groups were surveyed 6 weeks postpartum with total cost for health service use during pregnancy calculated. Logistic regression models assessed the odds ratio of having vaginal birth or caesarean section in the study groups. Of 339 women randomised, 184 (54%) women returned data at 6 weeks postpartum (Intervention Group n = 91; Control Group n = 93). Women receiving psycho-education had a higher likelihood of vaginal birth compared to controls (n = 60, 66% vs. n = 54, 58%; OR 2.34). Mean 'treatment' cost for women receiving psycho-education was AUS$72. Mean cost for health services excluding the cost of psycho-education, was less in the intervention group (AUS$1193 vs. AUS$1236), but not significant (p = 0.78). For every five women who received midwife counselling, one caesarean section was averted. The incremental healthcare cost to prevent one caesarean section using this intervention was AUS$145. Costs of delivering midwife psycho-education to women with childbirth fear during pregnancy are offset by improved vaginal birth rates and reduction in caesarean section numbers. Australian New Zealand Controlled Trials Registry ACTRN12612000526875 , 17th May 2012 (retrospectively registered one week after enrolment of first participant).

  5. Can patient safety indicators monitor medical and surgical care at New Zealand public hospitals?

    PubMed

    Hider, Phil; Parker, Karl; von Randow, Martin; Milne, Barry; Lay-Yee, Roy; Davis, Peter

    2014-11-07

    Increasing interest has focused on the safety of hospital care. The AusPSIs are a set of indicators developed from Australian administrative data to reliably identify inpatient adverse events in hospitals. The main aim of this study was to explore the application of the AHRQ/AusPSIs to New Zealand administrative hospital data related to medical and surgical care. Variation over time and across hospitals were also considered for a subset of the more common indicators. AHRQ/AusPSIs were adapted for use with New Zealand National Minimum Dataset administrative data for the period 2001-9. Crude positive event rates for each of the 16 indicators were assessed across New Zealand public hospitals. Variation over time for six more common indicators is presented using statistical control charts. Variation between hospitals was explored using rates adjusted for differences in patient variables including age, sex, ethnicity, rurality of residence, NZDep score and comorbidities. The AHRQ/AusPSIs were applied to New Zealand administrative hospital data and some 99,366 admissions were associated with a positive indicator event. However rates for some indicators were low (<1% of denominator admissions). Over the study period considerable variation in the rate of positive events was evident for the six most common indicators. Likewise there was substantial variation between hospitals in relation to risk adjusted positive event rates Patient safety indicators can be applied to New Zealand administrative hospital data. While infrequent rates hinder the use of some of the indicators, several could now be readily employed as warning flags to help monitor rates of adverse events at particular hospitals. In conjunction with other established or emerging tools, such as audit and trigger tools, the PSIs are now available to promote ongoing quality improvement activities in New Zealand hospitals.

  6. Googling Service Boundaries for Endovascular Clot Retrieval Hub Hospitals in a Metropolitan Setting: Proof-of-Concept Study.

    PubMed

    Phan, Thanh G; Beare, Richard; Chen, Jian; Clissold, Benjamin; Ly, John; Singhal, Shaloo; Ma, Henry; Srikanth, Velandai

    2017-05-01

    There is great interest in how endovascular clot retrieval hubs provide services to a population. We applied a computational method to objectively generate service boundaries for such endovascular clot retrieval hubs, defined by traveling time to hub. Stroke incidence data merged with population census to estimate numbers of stroke in metropolitan Melbourne, Australia. Traveling time from randomly generated addresses to 4 endovascular clot retrieval-capable hubs (Royal Melbourne Hospital [RMH], Monash Medical Center [MMC], Alfred Hospital [ALF], and Austin Hospital [AUS]) estimated using Google Map application program interface. Boundary maps generated based on traveling time at various times of day for combinations of hubs. In a 2-hub model, catchment was best distributed when RMH was paired with MMC (model 1a, RMH 1765 km 2 and MMC 1164 km 2 ) or with AUS (model 1c, RMH 1244 km 2 and AUS 1685 km 2 ), with no statistical difference between models ( P =0.20). Catchment was poorly distributed when RMH was paired with ALF (model 1b, RMH 2252 km 2 and ALF 676 km 2 ), significantly different from both models 1a and 1c (both P <0.05). Model 1a had the greatest proportion of patients arriving within ideal time of 30 minutes followed by model 1c ( P <0.001). In a 3-hub model, the combination of RMH, MMC, and AUS was superior to that of RMH, MMC, and ALF in catchment distribution and travel time. The method was also successfully applied to the city of Adelaide demonstrating wider applicability. We provide proof of concept for a novel computational method to objectively designate service boundaries for endovascular clot retrieval hubs. © 2017 American Heart Association, Inc.

  7. [Non-muscle-invasive bladder cancer: Information transfer from the clinic to the doctor's office : Results of a questionnaire study and presentation of a software solution].

    PubMed

    Lebentrau, S; May, M; Weckermann, D; Speck, T; Wick, A-K; Mathew, M; Schostak, M

    2017-02-01

    The adjuvant treatment of non-muscle-invasive bladder cancer (NMIBC) is based on the individual risk profile (RP) and its sufficient transfer from the clinic to the doctor's office. The objectives of our study were to verify the importance and degree of transfer of RP and recommendation for risk-adapted adjuvant treatment (RAAT) in patients with NMIBC as well as to develop appropriate tools for this purpose, if necessary. An email-based survey distributed to urologists in Brandenburg, Berlin, Bavaria and Lower Saxony explored the questions mentioned above. In addition, a tool for risk stratification and information transfer for patients with NMIBC was developed and validated. From a total of 134 questionnaires analyzed, 55 were from clinic urologists (CUs) and 79 were from ambulant urologists (AUs). Although 9 out of 10 urologists considered the RP of importance, only 29 % of CUs and 24 % of AUs (p = 0.553) confirmed that the RP was always mentioned in medical reports. The recommendation for RAAT was confirmed from 62 % of CUs and 20 % of AUs (p < 0.001). A recommendation for RAAT in the medical report was requested by 86 % of AUs. The risk calculator presented here - to our knowledge the first with integration of the 2004 WHO grading - is delivered in all mathematically possible constellations a RP, according to guideline recommendations. Urologists in the clinic and doctor's office both attach considerable importance to the determination and transfer of RP and the recommendation for RAAT. There was evidence to suggest an overestimation of the quality of medical reports by the CU. The risk calculator provides an easy and cost-neutral option to improve risk stratification and information transfer from the clinic to the doctor's office.

  8. Participation in paediatric cancer studies: timing and approach to recruitment

    PubMed Central

    2013-01-01

    Background Participation in epidemiological studies has fallen significantly over the past 30 years; this has been attributed to a busier lifestyle and longer working hours. In case–control studies, participation among cases is usually higher than among controls due to the personal relevance. In Australia, between 2003 and 2011, we conducted three national population-based case–control studies of risk factors for childhood cancers; brain tumors, acute leukemia and neuroblastoma and Wilms’ tumor. In this sub-study, we aimed to investigate factors that may have influenced study participation and completeness of survey completion. Findings The proportion of incident cases that were eligible to participate was lowest in the brain tumor study (Aus-CBT) (83.1%), as was the proportion of eligible families that consented (57%). The percentage of eligible cases that consented was highest in the leukemia study (Aus-ALL) (80.2%). The mode of invitation used was associated with families’ consent in each of the studies. Families invited in person, at clinic appointments, were more likely to consent than families invited by letter or phone. Timing of invitation following the child’s diagnosis differed among studies but, the likelihood of consent did not appear to be directly related to this. The return of questionnaires, completion of interview, and provision of DNA (blood sample) was highest in Aus-ALL (93%) and lowest in Aus-CBT (81%). Conclusions Studies of childhood cancer, and possibly other childhood diseases, should arrange for the family to be invited in person and, where possible, by a doctor with whom they are familiar. Whilst telephone interviews are time consuming and costly, particularly for large studies, they should be preferred over questionnaires for obtaining complete data. PMID:23656733

  9. Turbulenzübergang in der Rohrströmung: Die Lösung eines alten Rätsels

    NASA Astrophysics Data System (ADS)

    Eckhardt, Bruno; Hof, Björn; Faisst, Holger

    2006-09-01

    Die Strömung von Flüssigkeiten und Gasen durch eine Röhre kann zwei Zustände annehmen. Einer ist laminar, also gleichmäßig geordnet, einer ist zeitlich-räumlich verwirbelt und turbulent. Mit dem Übergang zur Turbulenz nimmt der Strömungswiderstand drastisch zu. Vor etwa 120 Jahren beschrieb Osborne Reynolds bereits das Verhalten der Rohrströmung sehr genau. Er beobachtete, dass der Turbulenzübergang sehr empfindlich von äußeren Störungen abhängt, was bislang rätselhaft blieb. Dieses Rätsel konnte nun mit einer Kombination aus Computerstudien, Konzepten aus der nichtlinearen Dynamik und speziell entwickelten Experimenten gelöst werden.

  10. Chapter 48: Geology and petroleum potential of the Eurasia Basin

    USGS Publications Warehouse

    Moore, Thomas E.; Pitman, Janet K.

    2011-01-01

    The Eurasia Basin petroleum province comprises the younger, eastern half of the Arctic Ocean, including the Cenozoic Eurasia Basin and the outboard part of the continental margin of northern Europe. For the USGS petroleum assessment (CARA), it was divided into four assessment units (AUs): the Lena Prodelta AU, consisting of the deep-marine part of the Lena Delta; the Nansen Basin Margin AU, comprising the passive margin sequence of the Eurasian plate; and the Amundsen Basin and Nansen Basin AUs which encompass the abyssal plains north and south of the Gakkel Ridge spreading centre, respectively. The primary petroleum system thought to be present is sourced in c. 50–44 Ma (Early to Middle Eocene) condensed pelagic deposits that could be widespread in the province. Mean estimates of undiscovered, technically recoverable petroleum resources include <1 billion barrels of oil (BBO) and about 1.4 trillion cubic feet (TCF) of nonassociated gas in Lena Prodelta AU, and <0.4 BBO and 3.4 TCF nonassociated gas in the Nansen Basin Margin AU. The Nansen Basin and Amundsen Basin AUs were not quantitatively assessed because they have less than 10% probability of containing at least one accumulation of 50 MMBOE (million barrels of oil equivalent).

  11. Assessment of Appalachian basin oil and gas resources: Utica-Lower Paleozoic Total Petroleum System: Chapter G.10 in Coal and petroleum resources in the Appalachian basin: distribution, geologic framework, and geochemical character

    USGS Publications Warehouse

    Ryder, Robert T.; Ruppert, Leslie F.; Ryder, Robert T.

    2014-01-01

    Both conventional oil and gas resources and continuous (unconventional) gas resources are present in the UticaLower Paleozoic TPS. Conventional oil and gas resources in the Utica-Lower Paleozoic TPS were assessed by the U.S. Geological Survey (USGS) in 2002 in the following assessment units (AU): (1) the Lower Paleozoic Carbonates in Thrust Belt AU, (2) the Knox Unconformity AU, (3) the Black River-Trenton Hydrothermal Dolomite AU, and (4) the Lockport Dolomite AU. The total estimated undiscovered oil and gas resources for these four AUs, at a mean value, was about 46 million barrels of oil (MMBO) and about 3 trillion cubic feet of gas (TCFG), respectively. In contrast, continuous (unconventional) gas resources in the TPS were assessed by the USGS in 2002 in four AUs associated with the “Clinton” sandstone, Medina sandstone, Medina Group sandstones, Tuscarora Sandstone, and sandstones in the Queenston Shale. The total estimated undiscovered gas for these four AUs, at a mean value, was about 26.8 TCFG. A hypothetical Utica Shale AU for oil(?) and continuous gas is identified in this report. In 2012, the Utica Shale was recognized by the USGS as a continuous AU and was assessed by Kirschbaum and others (2012).

  12. Genetic variation in resistance to blast (Pyricularia oryzae Cavara) in rice (Oryza sativa L.) germplasms of Bangladesh

    PubMed Central

    Khan, Mohammad Ashik Iqbal; Latif, Mohammad Abdul; Khalequzzaman, Mohammad; Tomita, Asami; Ali, Mohammad Ansar; Fukuta, Yoshimichi

    2017-01-01

    Genetic variation in blast resistance was clarified in 334 Bangladesh rice accessions from 4 major ecotypes (Aus, Aman, Boro and Jhum). Cluster analysis of polymorphism data of 74 SSR markers separated these accessions into cluster I (corresponding to the Japonica Group) and cluster II (corresponding to the Indica Group). Cluster II accessions were represented with high frequency in all ecotypes. Cluster II was further subdivided into subclusters IIa and IIb. Subcluster IIa accessions were represented with high frequency in only Aus and Jhum ecotypes. Cluster I accessions were more frequent in the Aman ecotype than in other ecotypes. Distinct variations in resistance were found, and accessions were classified into 4 groups (A1, A2, B1 and B2) based on their reactions to standard differential blast isolates. The most susceptible group was A2 (which included susceptible variety Lijiangxintuanheigu, most of the differential varieties, and a few Bangladesh accessions), followed in order by A1, B2 and B1 (the most resistant). Accessions from 4 ecotypes fell with different frequencies into each of these resistance groups. These results demonstrated that Japonica Group accessions were found mainly in Aman, and Indica Group accessions were distributed across all ecotypes. Susceptible accessions were limited in Aus and Aman. PMID:29398943

  13. The low-bias conducting mechanism of single-molecule junctions constructed with methylsulfide linker groups and gold electrodes

    NASA Astrophysics Data System (ADS)

    Wang, Minglang; Wang, Yongfeng; Sanvito, Stefano; Hou, Shimin

    2017-08-01

    The atomic structure and electronic transport properties of two types of molecular junctions, in which a series of saturated and conjugated molecules are symmetrically connected to gold electrodes through methylsulfide groups, are investigated using the non-equilibrium Green's function formalism combined with density functional theory. Our calculations show that the low-bias junction conductance is determined by the electronic tunneling between the two Au-S donor-acceptor bonds formed at the molecule-electrode interfaces. For alkanes with 4, 6, and 8 carbon atoms in the chain, the Au-S bonds moderately couple with the σ-type frontier molecular orbitals of the alkane backbone and thus prefer to be coplanar with the alkane backbone in the junction. This results in an exponential decrease of the junction conductance as a function of the number of methylene groups. In contrast, the Au-S bonds couple strongly with the π-type orbitals of the 1,4'-bis(methylsulfide)benzene and 4,4'-bis(methylsulfide)biphenyl molecules and thus tend to be perpendicular to the neighboring benzene rings, leading to the rather large junction conductance. Our findings contribute to the understanding of the low-bias conducting mechanism and facilitate the design of molecular electronic devices with methylsulfide groups and gold electrodes.

  14. Montreal electronic artificial urinary sphincters: Our futuristic alternatives to the AMS800™.

    PubMed

    Biardeau, Xavier; Hached, Sami; Loutochin, Oleg; Campeau, Lysanne; Sawan, Mohamad; Corcos, Jacques

    2017-10-01

    We aimed to present three novel remotely controlled hydromechanical artificial urinary sphincters (AUSs) and report their in-vitro and ex-vivo results. We successively developed three distinct hydromechanical AUSs on the basis of the existing AMS800 ™ device by incorporating an electronic pump. No changes were made to the cuff and balloon. The AUS#1 was designed as an electromagnetically controlled device. The AUS#2 and AUS#3 were conceived as Bluetooth 2.1 remotely controlled and Bluetooth 4.0 remotely-controlled, adaptive devices, respectively. In-vitro experiments profiled occlusive cuff pressure (OCP) during a complete device cycle, with different predetermined OCP. Ex-vivo experiments were performed on a fresh pig bladder with 4 cm cuff placed around the urethra. Leak point pressure with different predetermined OCP values was successively measured during cystometry via a catheter at the bladder dome. Our in-vitro and ex-vivo experiments demonstrated that these three novel AUSs provided stable and predetermined OCP - within the physiological range - and completely deflated the cuff, when required, in a limited time compatible with physiological voiding cycles. Our three novel, remotely controlled AUSs showed promising results that should be confirmed by in-vivo experiments focusing on efficacy and safety.

  15. Purification and characterisation of the yeast plasma membrane ATP binding cassette transporter Pdr11p

    PubMed Central

    Laub, Katrine Rude; Marek, Magdalena; Stanchev, Lyubomir Dimitrov; Herrera, Sara Abad; Kanashova, Tamara; Bourmaud, Adèle; Dittmar, Gunnar

    2017-01-01

    The ATP binding cassette (ABC) transporters Pdr11p and its paralog Aus1p are expressed under anaerobic growth conditions at the plasma membrane of the yeast Saccharomyces cerevisiae and are required for sterol uptake. However, the precise mechanism by which these ABC transporters facilitate sterol movement is unknown. In this study, an overexpression and purification procedure was developed with the aim to characterise the Pdr11p transporter. Engineering of Pdr11p variants fused at the C terminus with green fluorescent protein (Pdr11p-GFP) and containing a FLAG tag at the N terminus facilitated expression analysis and one-step purification, respectively. The detergent-solubilised and purified protein displayed a stable ATPase activity with a broad pH optimum near 7.4. Mutagenesis of the conserved lysine to methionine (K788M) in the Walker A motif abolished ATP hydrolysis. Remarkably, and in contrast to Aus1p, ATPase activity of Pdr11p was insensitive to orthovanadate and not specifically stimulated by phosphatidylserine upon reconstitution into liposomes. Our results highlight distinct differences between Pdr11p and Aus1p and create an experimental basis for further biochemical studies of both ABC transporters to elucidate their function. PMID:28922409

  16. Sternbilder und ihre Mythen

    NASA Astrophysics Data System (ADS)

    Fasching, Gerhard

    Aus den Besprechungen: "... Wem bei seinen philosophischen Höhenflügen allerdings die einfachsten Grundlagen fehlen, wer sich am Himmel ähnlich zurechtfindet wie ein Amazonasindianer im Großstadtverkehr, dem seien die Sternbilder und ihre Mythen ans Herz gelegt, die der Wiener Universitätsprofessor Gerhard Fasching zusammengestellt hat... Da werden Wegweiser-Sternkarten für das ganze Jahr gezeigt, die auch einem astronomischen Ignoranten die nächtliche Orientierung ermöglichen. Daneben werden die Sternsagen des Ovid opulent ausgebreitet, das überlieferte Wissen aus verschiedenen Kulturkreisen zitiert und wissenschaftliche Erklärungsmodelle zusammengetragen. Die moderne Weltsicht erscheint dabei nicht als der Weisheit letzter Schluß, sondern nur als derzeit anerkanntes Abbild der Wirklichkeit..." #Ulrich Schnabel/Die Zeit#

  17. Atomic structure of a peptide coated gold nanocluster identified using theoretical and experimental studies

    NASA Astrophysics Data System (ADS)

    Wang, Hui; Li, Xu; Gao, Liang; Zhai, Jiao; Liu, Ru; Gao, Xueyun; Wang, Dongqi; Zhao, Lina

    2016-06-01

    Peptide coated gold nanoclusters (AuNCs) have a precise molecular formula and atomic structure, which are critical for their unique applications in targeting specific proteins either for protein analysis or drug design. To date, a study of the crystal structure of peptide coated AuNCs is absent primarily due to the difficulty of obtaining their crystalline phases in an experiment. Here we study a typical peptide coated AuNC (Au24Peptide8, Peptide = H2N-CCYKKKKQAGDV-COOH, Anal. Chem., 2015, 87, 2546) to figure out its atomic structure and electronic structure using a theoretical method for the first time. In this work, we identify the explicit configuration of the essential structure of Au24Peptide8, Au24(Cys-Cys)8, using density functional theory (DFT) computations and optical spectroscopic experiments, where Cys denotes cysteine without H bonded to S. As the first multidentate ligand binding AuNC, Au24(Cys-Cys)8 is characterized as a distorted Au13 core with Oh symmetry covered by two Au(Cys-Cys) and three Au3(Cys-Cys)2 staple motifs in its atomic structure. The most stable configuration of Au24(Cys-Cys)8 is confirmed by comparing its UV-vis absorption spectrum from time-dependent density-functional theory (TDDFT) calculations with optical absorption measurements, and these results are consistent with each other. Furthermore, we carry out frontier molecular orbital (FMO) calculations to elucidate that the electronic structure of Au24(Cys-Cys)8 is different from that of Au24(SR)20 as they have a different Au/S ratio, where SR represents alkylthiolate. Importantly, the different ligand coatings, Cys-Cys and SR, in Au24(Cys-Cys)8 and Au24(SR)20 cause the different Au/S ratios in the coated Au24. The reason is that the Au/S ratio is crucial in determining the size of the Au core of the ligand protected AuNC, and the size of the Au core corresponds to a specific electronic structure. By the adjustment of ligand coatings from alkylthiolate to peptide, the Au/S ratio

  18. Autoimmune Retinopathy: Current Concepts and Practices (An American Ophthalmological Society Thesis).

    PubMed

    Sen, H Nida; Grange, Landon; Akanda, Marib; Fox, Austin

    2017-08-01

    To elicit and evaluate opinions in the diagnosis and management of nonparaneoplastic autoimmune retinopathy (npAIR) among members of the American Uveitis Society (AUS) and to further the development of consensus and criteria in the diagnosis and management of npAIR. We hypothesize that despite lack of any clear guidelines, a general consensus in the clinical diagnosis and treatment of npAIR exists among uveitis experts. A literature review was performed and a panel of uveitis experts was consulted to formulate a survey regarding the diagnosis and management of npAIR. An online survey of 10 questions was developed, and a link was distributed through the AUS membership discussion list. We defined "general consensus" as meaning that a majority (>50%) of the respondents provided the same answer to a question. Fifty-four members of the AUS responded to the survey. Thirty-eight members (70.4%) see one to three AIR patients per year. Greater than 50% consensus was reached on most items, particularly items relating to diagnostic features and tests (up to 96% consensus). The diagnosis and management of npAIR is challenging, as standardized clinical and laboratory diagnostic criteria have yet to be established. The results of this study support the presence of consensus regarding certain aspects of npAIR, but also indicate the need for developing clear clinical diagnostic criteria and treatment guidelines.

  19. Does abdominal sonography provide additional information over abdominal plain radiography for diagnosis of necrotizing enterocolitis in neonates?

    PubMed

    Dilli, Dilek; Suna Oğuz, S; Erol, Reyhan; Ozkan-Ulu, Hülya; Dumanlı, Hüseyin; Dilmen, Uğur

    2011-03-01

    To explore whether addition of abdominal sonography (AUS) to plain radiography is helpful in the management of premature newborns with necrotizing enterocolitis (NEC). This study is a prospective analysis of 93 premature neonates with NEC who were followed-up in our neonatal intensive care unit between October 2007 and April 2009. Patients were classified into two groups; group I with suspected NEC (stage I) (n = 54) and group II with definite NEC (stage ≥II) (n = 39). Pneumatosis intestinalis (PI) (n = 29), free air (n = 9), and portal venous gas (PVG) (n = 1) were observed in group II on plain radiography. In the same group, echoic free fluid (EFF) (n = 9), PVG (n = 6), PI (n = 5), and focal fluid collection (n = 3) were the most prominent sonographic findings. In patients with intestinal perforation, whereas EFF and bowel wall thinning were observed on AUS, free air was not detected on plain radiography as a sign of intestinal perforation. Our results suggest AUS to be superior to plain radiography on early detection of intestinal perforation by demonstrating PVG and EFF collection. Therefore, it may be life-saving by directing the surgeon to perform surgical intervention in the case of clinical deterioration in the course of NEC.

  20. Web-based Recruiting for a Survey on Knowledge and Awareness of Cervical Cancer Prevention Among Young Women Living in Kanagawa Prefecture, Japan

    PubMed Central

    Miyagi, Etsuko; Motoki, Yoko; Asai-Sato, Mikiko; Taguri, Masataka; Morita, Satoshi; Hirahara, Fumiki; Wark, John D.; Garland, Suzanne M.

    2014-01-01

    Objectives Cervical cancer (CC) incidence and mortality among young women have been increasing in Japan. To develop effective measures to combat this, we assessed the feasibility of using a social networking site (SNS) to recruit a representative sample of young women to conduct a knowledge and attitude study about CC prevention via an internet-based questionnaire. Methods From July 2012 to March 2013, advertising banners targeting women aged 16 to 35 years in Kanagawa Prefecture were placed on Facebook in a similar manner as an Australian (AUS) study conducted in 16- to 25-year-olds in 2010 and on a homepage to advertise our CC advocacy activities. Eligible participants were emailed instructions for accessing our secure Web site where they completed an online survey including demographics, awareness, and knowledge of human papillomavirus (HPV) and CC. Data for the study population were compared with the general Japanese population and the AUS study. Results Among 394 women who expressed interest, 243 (62%) completed the survey, with 52% completing it via Facebook. Women aged 26 to 35 years, living in Yokohama City, with an education beyond high school, were overrepresented. Participants had high awareness and knowledge of HPV and CC, comparable with the AUS study participants. However, the self-reported HPV vaccination rate (22% among participants aged 16–25 years) and the recognition rate of the link between smoking and CC (31%) were significantly lower than in the AUS study (58% and 43%, respectively) (P < 0.05). Significant predictors of high knowledge scores about HPV included awareness of HPV vaccine (P < 0.001) and self-reported HPV vaccination (P < 0.05). Conclusions The SNS and homepage are efficient methods to recruit young women into health surveys, which can effectively be performed online. A nationwide survey using SNSs would be an appropriate next step to better understand the current lack of uptake of the national HPV vaccine program by young women

  1. Characterization of G2P[4] rotavirus strains associated with increased detection in Australian states using the RotaTeq® vaccine during the 2010-2011 surveillance period.

    PubMed

    Donato, Celeste M; Zhang, Zheng Andrew; Donker, Nicole C; Kirkwood, Carl D

    2014-12-01

    The introduction of rotavirus vaccines Rotarix® and RotaTeq® into the Australian National Immunisation Program in July 2007 has resulted in a dramatic decrease in the burden of rotavirus disease. G2P[4] strains became the dominant genotype Australia-wide during the 2010-2011 surveillance period and for the first time since vaccine introduction, a higher proportion were isolated in jurisdictions using RotaTeq® vaccine compared to locations using Rotarix®. Phylogenetic analysis of the VP7 gene of 32 G2P[4] strains identified six genetic clusters, these distinct clusters were also observed in the VP4 gene for a subset of 12 strains. The whole genome was determined for a representative strain of clusters; A (RVA/Human-wt/AUS/SA066/2010/G2P[4]), B (RVA/Human-wt/AUS/WAPC703/2010/G2P[4]), C (RVA/Human-wt/AUS/MON008/2010/G2P[4]) and E (RVA/Human-wt/AUS/RCH041/2010/G2P[4]). All of the strains possessed the archetypal DS-1 like genome constellation G2-P[4]-I2-R2-C2-M2-A2-N2-T2-E2-H2. Three of the strains, SA066, MON008 and WAPC703 clustered together and were distinct to RCH041 for all 11 genes. The VP7 genes of 31/32 of the strains characterized in this study possessed five conserved amino acid substitutions when compared to the G2 VP7 gene present in the RotaTeq® vaccine. Three of the substitutions were in the VP7 antigenic regions A and C, the substitutions A87T, D96N and S213D have been reported in the majority of G2P[4] strains circulating globally over the previous decade. These changes may have improved the ability of strains to circulate in settings of high vaccine use. Copyright © 2014 Elsevier B.V. All rights reserved.

  2. Web-based recruiting for a survey on knowledge and awareness of cervical cancer prevention among young women living in Kanagawa prefecture, Japan.

    PubMed

    Miyagi, Etsuko; Motoki, Yoko; Asai-Sato, Mikiko; Taguri, Masataka; Morita, Satoshi; Hirahara, Fumiki; Wark, John D; Garland, Suzanne M

    2014-09-01

    Cervical cancer (CC) incidence and mortality among young women have been increasing in Japan. To develop effective measures to combat this, we assessed the feasibility of using a social networking site (SNS) to recruit a representative sample of young women to conduct a knowledge and attitude study about CC prevention via an internet-based questionnaire. From July 2012 to March 2013, advertising banners targeting women aged 16 to 35 years in Kanagawa Prefecture were placed on Facebook in a similar manner as an Australian (AUS) study conducted in 16- to 25-year-olds in 2010 and on a homepage to advertise our CC advocacy activities. Eligible participants were emailed instructions for accessing our secure Web site where they completed an online survey including demographics, awareness, and knowledge of human papillomavirus (HPV) and CC. Data for the study population were compared with the general Japanese population and the AUS study. Among 394 women who expressed interest, 243 (62%) completed the survey, with 52% completing it via Facebook. Women aged 26 to 35 years, living in Yokohama City, with an education beyond high school, were overrepresented. Participants had high awareness and knowledge of HPV and CC, comparable with the AUS study participants. However, the self-reported HPV vaccination rate (22% among participants aged 16-25 years) and the recognition rate of the link between smoking and CC (31%) were significantly lower than in the AUS study (58% and 43%, respectively) (P < 0.05). Significant predictors of high knowledge scores about HPV included awareness of HPV vaccine (P < 0.001) and self-reported HPV vaccination (P < 0.05). The SNS and homepage are efficient methods to recruit young women into health surveys, which can effectively be performed online. A nationwide survey using SNSs would be an appropriate next step to better understand the current lack of uptake of the national HPV vaccine program by young women in Japan.

  3. Suggesting the cytologic diagnosis of noninvasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP): A retrospective analysis of atypical and suspicious nodules.

    PubMed

    Strickland, Kyle C; Howitt, Brooke E; Barletta, Justine A; Cibas, Edmund S; Krane, Jeffrey F

    2018-02-01

    The term "noninvasive follicular thyroid neoplasm with papillary-like nuclear features" (NIFTP) has replaced a subset of follicular variant of papillary thyroid carcinoma due to the indolent behavior of such tumors. NIFTPs are most often classified in an "indeterminate" diagnostic category. In the current study, the authors sought to identify cytologic features helpful in distinguishing NIFTP from other entities in these categories, particularly benign nodules. The authors retrospectively evaluated a consecutive cohort of 130 thyroid fine-needle aspiration (FNA) specimens with an indeterminate diagnosis and available histopathologic follow-up. All FNA specimens were evaluated using the ThinPrep method. Each FNA was blindly reviewed by 2 board-certified cytopathologists, who assessed overall cellularity; architectural parameters; and nuclear features, including nuclear pallor and fine chromatin, distinct nucleoli, and irregular nuclear membranes. Each case received a score of 0 to 3, based on the presence or absence of these 3 nuclear features. Nuclear but not architectural features appeared to distinguish NIFTP from benign nodules. Ninety-one percent of the NIFTPs (32 of 35 NIFTPs) received a score of ≥2, compared with 35% of benign nodules (23 of 66 benign nodules) (P<.0001). In contrast, NIFTP could not be differentiated from the invasive/infiltrative follicular variant of papillary thyroid carcinoma using these criteria (P = 1.000). Nuclear scoring was found to be especially useful in atypia of undetermined significance/follicular lesion of undetermined significance (AUS); a score ≥2 enriched for NIFTP (39% vs 3% of AUS cases with a score <2), whereas a score <2 was more likely benign (85% vs 50% of AUS cases with a score ≥2). In indeterminate FNA specimens, the distinction of a possible NIFTP from a benign thyroid nodule can be suggested using a simple nuclear scoring system that is most valuable in AUS aspirates. Cancer Cytopathol 2018;126:86-93. © 2017

  4. Genomic Analysis of Reduced Susceptibility to Tigecycline in Enterococcus faecium

    PubMed Central

    Isnard, Christophe; Cosquer, Thibaud; Odhiambo, Arlène; Bucquet, Fiona; Guérin, François; Giard, Jean-Christophe

    2014-01-01

    Tigecycline (TIG) is approved for use for the treatment of complicated intra-abdominal infections, skin and skin structure infections, as well as pneumonia. Acquired resistance or reduced susceptibility to TIG has been observed in Gram-negative rods, has seldom been reported in Gram-positive organisms, and has not yet been reported in Enterococcus faecium. Using the serial passage method, in vitro mutant AusTig and in vitro mutants HMtig1 and HMtig2 with decreased TIG susceptibility (MICs, 0.25 μg/ml) were obtained from strains E. faecium Aus0004 and HM1070 (MICs, 0.03 μg/ml), respectively. In addition, two vancomycin-resistant E. faecium clinical isolates (EF16 and EF22) with reduced susceptibility to TIG (MICs, 0.5 and 0.25 μg/ml, respectively) were studied. Compared to the wild-type strains, the in vitro mutants also showed an increase in the MICs of other tetracyclines. An efflux mechanism did not seem to be involved in the reduced TIG susceptibility, since the presence of efflux pump inhibitors (reserpine or pantoprazole) did not affect the MICs of TIG. Whole-genome sequencing of AusTig was carried out, and genomic comparison with the Aus0004 genome was performed. Four modifications leading to an amino acid substitution were found. These mutations affected the rpsJ gene (efau004_00094, coding for the S10 protein of the 30S ribosomal subunit), efau004_01228 (encoding a cation transporter), efau004_01636 (coding for a hypothetical protein), and efau004_02455 (encoding the l-lactate oxidase). The four other strains exhibiting reduced TIG susceptibility were screened for the candidate mutations. This analysis revealed that three of them showed an amino acid substitution in the same region of the RpsJ protein. In this study, we characterized for the first time genetic determinants linked to reduced TIG susceptibility in enterococci. PMID:25348531

  5. Genomic analysis of reduced susceptibility to tigecycline in Enterococcus faecium.

    PubMed

    Cattoir, Vincent; Isnard, Christophe; Cosquer, Thibaud; Odhiambo, Arlène; Bucquet, Fiona; Guérin, François; Giard, Jean-Christophe

    2015-01-01

    Tigecycline (TIG) is approved for use for the treatment of complicated intra-abdominal infections, skin and skin structure infections, as well as pneumonia. Acquired resistance or reduced susceptibility to TIG has been observed in Gram-negative rods, has seldom been reported in Gram-positive organisms, and has not yet been reported in Enterococcus faecium. Using the serial passage method, in vitro mutant AusTig and in vitro mutants HMtig1 and HMtig2 with decreased TIG susceptibility (MICs, 0.25 μg/ml) were obtained from strains E. faecium Aus0004 and HM1070 (MICs, 0.03 μg/ml), respectively. In addition, two vancomycin-resistant E. faecium clinical isolates (EF16 and EF22) with reduced susceptibility to TIG (MICs, 0.5 and 0.25 μg/ml, respectively) were studied. Compared to the wild-type strains, the in vitro mutants also showed an increase in the MICs of other tetracyclines. An efflux mechanism did not seem to be involved in the reduced TIG susceptibility, since the presence of efflux pump inhibitors (reserpine or pantoprazole) did not affect the MICs of TIG. Whole-genome sequencing of AusTig was carried out, and genomic comparison with the Aus0004 genome was performed. Four modifications leading to an amino acid substitution were found. These mutations affected the rpsJ gene (efau004_00094, coding for the S10 protein of the 30S ribosomal subunit), efau004_01228 (encoding a cation transporter), efau004_01636 (coding for a hypothetical protein), and efau004_02455 (encoding the l-lactate oxidase). The four other strains exhibiting reduced TIG susceptibility were screened for the candidate mutations. This analysis revealed that three of them showed an amino acid substitution in the same region of the RpsJ protein. In this study, we characterized for the first time genetic determinants linked to reduced TIG susceptibility in enterococci. Copyright © 2015, American Society for Microbiology. All Rights Reserved.

  6. Estimating the recreational-use value for hiking in Bellenden Ker National Park, Australia.

    PubMed

    Nillesen, Eleonora; Wesseler, Justus; Cook, Averil

    2005-08-01

    The recreational-use value of hiking in the Bellenden Ker National Park, Australia has been estimated using a zonal travel cost model. Multiple destination visitors have been accounted for by converting visitors' own ordinal ranking of the various sites visited to numerical weights, using an expected-value approach. The value of hiking and camping in this national park was found to be dollar AUS 250,825 per year, or dollar AUS 144,45 per visitor per year, which is similar to findings from other studies valuing recreational benefits. The management of the park can use these estimates when considering the introduction of a system of user pays fees. In addition, they might be important when decisions need to be made about the allocation of resources for maintenance or upgrade of tracks and facilities.

  7. Extrasolare Monde - schöne neue Welten?

    NASA Astrophysics Data System (ADS)

    Heller, René

    2013-10-01

    Während mittlerweile rund 950 Planeten außerhalb des Sonnensystems gefunden wurden, steht der Nachweis von extrasolaren Monden noch aus. Aktuelle Studien zeigen, dass dies mit der heutigen Technologie zum ersten Mal möglich ist.

  8. Cost-effectiveness analysis of population-based screening of hepatocellular carcinoma: Comparing ultrasonography with two-stage screening

    PubMed Central

    Kuo, Ming-Jeng; Chen, Hsiu-Hsi; Chen, Chi-Ling; Fann, Jean Ching-Yuan; Chen, Sam Li-Sheng; Chiu, Sherry Yueh-Hsia; Lin, Yu-Min; Liao, Chao-Sheng; Chang, Hung-Chuen; Lin, Yueh-Shih; Yen, Amy Ming-Fang

    2016-01-01

    AIM: To assess the cost-effectiveness of two population-based hepatocellular carcinoma (HCC) screening programs, two-stage biomarker-ultrasound method and mass screening using abdominal ultrasonography (AUS). METHODS: In this study, we applied a Markov decision model with a societal perspective and a lifetime horizon for the general population-based cohorts in an area with high HCC incidence, such as Taiwan. The accuracy of biomarkers and ultrasonography was estimated from published meta-analyses. The costs of surveillance, diagnosis, and treatment were based on a combination of published literature, Medicare payments, and medical expenditure at the National Taiwan University Hospital. The main outcome measure was cost per life-year gained with a 3% annual discount rate. RESULTS: The results show that the mass screening using AUS was associated with an incremental cost-effectiveness ratio of USD39825 per life-year gained, whereas two-stage screening was associated with an incremental cost-effectiveness ratio of USD49733 per life-year gained, as compared with no screening. Screening programs with an initial screening age of 50 years old and biennial screening interval were the most cost-effective. These findings were sensitive to the costs of screening tools and the specificity of biomarker screening. CONCLUSION: Mass screening using AUS is more cost effective than two-stage biomarker-ultrasound screening. The most optimal strategy is an initial screening age at 50 years old with a 2-year inter-screening interval. PMID:27022228

  9. Trizentrische Analyse von Kofaktoren und Komorbidität des Pyoderma gangraenosum.

    PubMed

    Jockenhöfer, Finja; Herberger, Katharina; Schaller, Jörg; Hohaus, Katja Christina; Stoffels-Weindorf, Maren; Ghazal, Philipp Al; Augustin, Matthias; Dissemond, Joachim

    2016-10-01

    Das Pyoderma gangraenosum (PG) ist eine seltene, inflammatorische destruktiv-ulzerierende neutrophile Erkrankung mit weitgehend unklarer Pathophysiologie. In dieser Studie wurden die potenziell relevanten Kofaktoren und Begleiterkrankungen von Patienten mit PG aus drei dermatologischen Wundzentren in Deutschland differenziert ausgewertet. Von den insgesamt 121 analysierten Patienten waren Frauen (66,9 %) häufiger betroffen als Männer. Das Alter der Patienten war 18-96 Jahre (Mittelwert [MW]: 59,8); die Wunden hatten eine Größe von 1-600 cm² (MW: 65,6 cm²) und waren überwiegend sehr schmerzhaft (VAS 1-10, MW: 7). Die Unterschenkel waren am häufigsten (71,9 %) betroffen. Bei 12 (9,9 %) Patienten bestanden chronisch entzündliche Darmerkrankungen (5,8 % Colitis ulcerosa; 4,1 % Morbus Crohn), bei 14,1 % der Patienten wurde eine Begleiterkrankung aus dem rheumatischen Formenkreis beschrieben. Neoplasien bestanden bei 20,6 % der Patienten, von denen 6,6 % als hämatologische und 14,1 % als solide Neoplasien klassifiziert wurden. Aus dem Kreis des metabolischen Syndroms wurde bei 69,4 % Patienten eine Adipositas, bei 57,9 % eine arterielle Hypertonie und bei 33,9 % ein Diabetes mellitus diagnostiziert. Diese Datenanalyse bestätigt Assoziationen des PG mit dem metabolischen Syndrom und mit Neoplasien, die zukünftig frühzeitig bei einer zielgerichteten Diagnostik der Patienten beachtet und behandelt werden sollten. © 2016 Deutsche Dermatologische Gesellschaft (DDG). Published by John Wiley & Sons Ltd.

  10. Economic burden of toxicities associated with treating metastatic melanoma in eight countries.

    PubMed

    Wehler, Elizabeth; Zhao, Zhongyun; Pinar Bilir, S; Munakata, Julie; Barber, Beth

    2017-01-01

    Information on costs of managing adverse events (AEs) associated with current treatments in metastatic melanoma is limited. This study estimates costs of AEs in eight countries: Australia (AU), Canada (CA), France (FR), Germany (GE), Italy (IT), the Netherlands (NL), Spain (ES), and the UK. A literature search was conducted to identify grade 3/4 AEs from product label, published trials, conference abstracts, and treatment guidelines. Resource utilization for the management of each type of AE was determined via interviews with 5 melanoma clinicians in each country. Outpatient and inpatient costs were estimated for each type of AE using country-specific tariffs or government/published sources. In outpatient settings, the most costly AEs per incident included cutaneous squamous cell carcinoma (CSCC) (€1063, £720; NL/UK), anemia (€1443, €1329, €1285; ES/IT/FR), peripheral neuropathy (€1289; ES), and immune-related diarrhea (AUS$1,121; AU). In inpatient settings, the most costly AEs per hospitalization included hypophysitis (€10,265; €5316; CAN$9735; AUS$7231: ES/FR/CA/AU), dyspnea (€9077; GE), elevated liver enzymes (€6913, CAN$8030, AUS$6594; FR/CA/AU), CSCC (CAN$8934; CA), peripheral neuropathy (€6977, €4144, CAN$9472; NL/ES/CA), and diarrhea (£4284, €4113; UK/ES). Costs of managing AEs can be significant, and thus effective treatments with lower rates of severe AEs would be valuable.

  11. National Assessment of Oil and Gas Project: Petroleum Systems and Geologic Assessment of Undiscovered Oil and Gas, Hanna, Laramie, and Shirley Basins Province, Wyoming

    USGS Publications Warehouse

    U.S. Geological Survey Hanna, Laramie

    2007-01-01

    INTRODUCTION The purpose of the U.S. Geological Survey?s (USGS) National Oil and Gas Assessment is to develop geologically based hypotheses regarding the potential for additions to oil and gas reserves in priority areas of the United States. The U.S. Geological Survey (USGS) recently completed an assessment of the undiscovered oil and gas potential of the Hanna, Laramie, and Shirley Basins Province in Wyoming and northeastern Colorado. The assessment is based on the geologic elements of each total petroleum system (TPS) defined in the province, including hydrocarbon source rocks (source-rock maturation, hydrocarbon generation, and migration), reservoir rocks (sequence stratigraphy and petrophysical properties), and hydrocarbon traps (trap formation and timing). Using this geologic framework, the USGS defined three TPSs and seven assessment units (AUs) within them; undiscovered resources for three of the seven AUs were quantitatively assessed.

  12. Mikrodaten und statistische Auswertungsmethoden

    NASA Astrophysics Data System (ADS)

    Hujer, Reinhard

    Mit der zunehmenden Verfügbarkeit immer größerer Querschnitts- und Längschnittsdatensätze für Personen, Haushalte und Betriebe sowie deren Verknüpfungen hat sich die mikroökonometrische Forschung in den vergangenen Jahren rasant weiterentwickelt. Dies gilt sowohl aus methodischer als auch aus empirischer, anwendungsorientierter Sicht. Mikrodaten und mikroökonometrische Ansätze dienen dazu, aktuelle, politikrelevante Fragen aufzugreifen, sie zu analysieren und fundierte politische Empfehlungen zu geben, beispielsweise im Rahmen der Arbeitsmarkt- und Sozialpolitik, der Finanzanalyse und der Marketingforschung. Die Deutsche Statistische Gesellschaft (DStatG) und deren Mitglieder haben sich in den Ausschüssen und in Hauptversammlungen kontinuierlich mit den Weiterentwicklungen der mikroökonometrischen Methodik und den empirischen Anwendungen befasst. Zahlreiche Publikationen von Mitgliedern der DStatG haben entscheidend zum kritischen Diskurs und zum wissenschaftlichen Fortschritt in diesem Bereich beigetragen.

  13. Statistik in Naturwissenschaft und Technik

    NASA Astrophysics Data System (ADS)

    Wilrich, Peter-Theodor

    Mit dem Aufschwung von Naturwissenschaft und Technik zu Beginn des 19. Jahrhunderts entstand die mathematische Statistik, angeregt aus der Geodäsie (wie die Methode der kleinsten Quadrate) und der Anthropologie (wie die statistische Analyse mehrdimensionaler Beobachtungen und ihrer stochastischen Abhängigkeiten). Im Gegensatz zu den Wirtschafts- und Sozialwissenschaften, in denen Daten vorwiegend aus Beobachtungsstudien gewonnen werden, stehen in den Naturwissenschaften Experimente im Vordergrund. Daher gehört die statistische Versuchsplanung zu den insbesondere in Naturwissenschaft und Technik angewendeten statistischen Methoden, aber auch die Extremwertstatistik und Lebensdaueranalysen sowie die Methoden der räumlichen Statistik (insbesondere in der Umweltforschung). Im 20. Jahrhundert wurden Stichprobenpläne und Regelkarten (Kontrollkarten) zur Prozessregelung als Hilfsmittel der statistischen Qualitätssicherung entwickelt. Diese Methodenbündel, mit denen sich der Ausschuss Statistik in Naturwissenschaft und Technik immer wieder befasst, werden im Folgenden vorgestellt.

  14. Individuelle Templates für Rekonstruktionen des linken Herzventrikels

    NASA Astrophysics Data System (ADS)

    Feder, Stefan; Falk, Volkmar; Gutberiet, Matthias; Bartz, Dirk

    Bei krankhaften Vergrößerungen des linken Herzventrikels kann eine chirurgische Ventrikelrekonstruktion zur Verbesserung der Herzleistung beitragen. Die dabei erstellte Ventrikelgeometrie ist von entscheidender Bedeutung. Diese Studie befasst sich mit der computerbasierten Planung von individuellen Schablonen (Templates) für Ventrikelrekonstruktionen. Ziel ist es aus Cardio-CT-Daten, präoperativ, patientenindividuelle 3D-Modelle für Ventrikeltemplates zu erstellen. Hierfür wird aus CT-Daten der linksventrikuläre Blutpool segmentiert und daraus das Ventrikeltemplate modelliert. Dies geschieht anhand von zwei Kriterien: dem physiologischen Ventrikelfüllungsvolumen und der hämodynamisch günstigen ellipsoiden Form. Es konnten 20 3D-Templatemodelle mit einem durchschnittlichen Volumen von 144 ml erstellt werden. Die ellipsoide Form konnte durch manuelle Modellierung erreicht werden. Der Nachweis verbesserter Operationsergebnisse muss in nachfolgenden klinischen Studien erbracht werden.

  15. Gas Metal Arc Welding Process Modeling and Prediction of Weld Microstructure in MIL A46100 Armor-Grade Martensitic Steel

    DTIC Science & Technology

    2013-06-01

    acicular/Widmanstatten ferrite (a version of ferrite possessing an acicular/ lenticular - plate morphology which grows into the untransformed aus- tenite...boundary regions which have been transformed into allotriomorphic ferrite, as well as lenticular -shaped Widmanstatten plates advancing from the

  16. Male synthetic sling versus artificial urinary sphincter trial for men with urodynamic stress incontinence after prostate surgery (MASTER): study protocol for a randomised controlled trial.

    PubMed

    Constable, Lynda; Cotterill, Nikki; Cooper, David; Glazener, Cathryn; Drake, Marcus J; Forrest, Mark; Harding, Chris; Kilonzo, Mary; MacLennan, Graeme; McCormack, Kirsty; McDonald, Alison; Mundy, Anthony; Norrie, John; Pickard, Robert; Ramsay, Craig; Smith, Rebecca; Wileman, Samantha; Abrams, Paul

    2018-02-21

    Stress urinary incontinence (SUI) is a frequent adverse effect for men undergoing prostate surgery. A large proportion (around 8% after radical prostatectomy and 2% after transurethral resection of prostate (TURP)) are left with severe disabling incontinence which adversely effects their quality of life and many are reliant on containment measures such as pads (27% and 6% respectively). Surgery is currently the only option for active management of the problem. The overwhelming majority of surgeries for persistent bothersome SUI involve artificial urinary sphincter (AUS) insertion. However, this is expensive, and necessitates manipulation of a pump to enable voiding. More recently, an alternative to AUS has been developed - a synthetic sling for men which elevates the urethra, thus treating SUI. This is thought, by some, to be less invasive, more acceptable and less expensive than AUS but clear evidence for this is lacking. The MASTER trial aims to determine whether the male synthetic sling is non-inferior to implantation of the AUS for men who have SUI after prostate surgery (for cancer or benign disease), judged primarily on clinical effectiveness but also considering relative harms and cost-effectiveness. Men with urodynamic stress incontinence (USI) after prostate surgery, for whom surgery is judged appropriate, are the target population. We aim to recruit men from secondary care urological centres in the UK NHS who carry out surgery for post-prostatectomy incontinence. Outcomes will be assessed by participant-completed questionnaires and 3-day urinary bladder diaries at baseline, 6, 12 and 24 months. The 24-h urinary pad test will be used at baseline as an objective assessment of urine loss. Clinical data will be completed at the time of surgery to provide details of the operative procedures, complications and resource use in hospital. At 12 months, men will also have a clinical review to evaluate the results of surgery (including another 24-h pad test) and to

  17. Three Plate Reconstruction in the Eastern Indian Ocean: New Constraints on Wharton and Australian-Antarctic basins

    NASA Astrophysics Data System (ADS)

    Jacob, J.; Dyment, J.

    2012-12-01

    Understanding the continuous seismicity and repeated occurrence of major earthquakes in Sumatra and the neighboring area requires detailed constrains on the subducting plate. In this study we analyze the past plate kinematics evolution of the Wharton basin, eastern Indian Ocean through a three plate reconstruction involving Australia (AUS), Antarctica (ANT), and India (IND). We compile marine magnetic identifications in the Australian-Antarctic Basin [1,2], the Crozet and Central Indian basins (Yatheesh et al, in prep.) and the Wharton Basin [3]. The Wharton Basin is characterized by an extinct spreading center dated by anomaly 18 (38 Ma). The southern flank of the basin exhibits a continuous sequence of anomalies 20n (42 Ma) to 34n (84 Ma), whereas the northern flank lacks some of the older anomalies because a significant part has been subducted in the Sunda Trench. The three-plate reconstructions have provided set of rotation parameters describing the evolution of IND-AUS. Using these parameters, we have reconstructed the missing isochrons of the northern flank and the detailed geometry of the subducted part of the Wharton basin. Such an exercise provides useful constraints on the age and structure of the plate in subduction under Indonesia. As a byproduct, the three plate reconstruction provided set of rotation parameters for AUS-ANT as well, which constrains the conjugate fit between the basins. Previous studies [1,2,4,5] have achieved such a fit on the base of ill-defined fracture zones. We consider the well-defined fracture zones from the Crozet, Central Indian, and Wharton basins, but avoid using the poor fracture zone imprints from the Australian-Antarctic Basin. As a result from this approach, we conclude that the relative motion of AUS with respect to ANT initially followed a north-south direction, then changed to northwest-southeast at anomaly 32ny, and reverted to northeast southwest at anomaly 24no prior to the establishment of the Southeast Indian

  18. Fine needle aspiration of thyroid nodules in the pediatric population: a 12-year cyto-histological correlation experience at North Shore-Long Island Jewish Health System.

    PubMed

    Lale, Seema A; Morgenstern, Nora N; Chiara, Sugrue; Wasserman, Patricia

    2015-08-01

    Diagnostic evaluation of thyroid nodules by FNA is used in the clinical management triage based on the knowledge of the rate of malignancy of each diagnostic category. The Bethesda System for Reporting Thyroid Cytopathology was published in 2007 by the National Cancer Institute (NCI). Using this classification, we studied our institution's experience in the pediatric population calculating the rate of malignancy for each diagnostic category, comparing our findings to our general patient population and that of the literature. 13,312 thyroid FNAs were performed at our institution between 1998 and 2010. 282 cases were from patients under 19 years of age. We reviewed and reclassified these cases using the new NCI categories, and pursued cytology-surgical follow-up. Of the 282 FNA cases, 20.92% (59) were classified as unsatisfactory (U), 48.22, % (136) benign (B), 2.12% (6) Atypia of undetermined significance (AUS), 14.18% (40) suspicious for follicular neoplasm (FN), 2.12% (6) suspicious for malignancy (SM) and 12.41% (35) positive for malignancy (P). The U-category was further classified into nondiagnostic (ND) 12.41% (35) and cysts (C) 8.51% (24). Seventy-four children had surgical follow-up. The rates of histologically confirmed malignancy were 10% in U (1/10), 0% in B (0/17), 50% in AUS (2/4), 39% in FN (7/18), 100% in SM (4/4) and 100% in P (24/24) categories respectively. Among the U category, malignancy rate was 0% for the ND category and 25% for the C category. To our knowledge, this is the first study to apply the NCI categories to the pediatric population. The rate of malignancy in the U category was only seen in the specimens with cystic component. AUS and FN categories had a higher malignancy rate (50 and 39% respectively) as compared with that of the general population (15 and 30% respectively). Given that the rates of malignancy are higher for cysts and AUS, the literature recommendation to "follow-up and repeat" may not apply to the pediatric population

  19. Population structure of the stable fly, Stomoxys calcitrans (L.) (Diptera: Muscidae) assessed on a global scale using Amplified Fragment Length Polymorphism

    USDA-ARS?s Scientific Manuscript database

    The stable fly, Stomoxys calcitrans (L.) (Diptera: Muscidae), is a major pest of livestock in the United States and worldwide. To assess the genetic variability in geographically distant stable flies, samples were obtained from four biogeographical regions: Nearctic, Neotropical, Palearctic, and Aus...

  20. Unlocking the variation hidden in rice germplasm collections with genomics

    USDA-ARS?s Scientific Manuscript database

    Cultivated Asian rice (Oryza sativa) was domesticated from O. rufipogon (O. nivara). The O. sativa subspecies indica and japonica diverged in ancient times, and based on DNA markers, further subdivided into the five major subpopulations, aus, indica, aromatic, tropical japonica and temperate japoni...

  1. Informal Institutions and the Weaknesses of Human Behavior

    DTIC Science & Technology

    2005-01-01

    der Wirtschafispolitik 2, 2001, S.185-210. * Haucap, Justus, Uwe Pauly & Christian Wey, Collective Wage Setting When Wages Are Generally Binding: An...in an Overlapping Generations Model, Nr. 8/1999. " Henning, Andreas & Wolfgang Greiner, Organknappheit im Transplantationswesen - L6sungs- ansditze aus

  2. Joint Patch and Multi-label Learning for Facial Action Unit Detection

    PubMed Central

    Zhao, Kaili; Chu, Wen-Sheng; De la Torre, Fernando; Cohn, Jeffrey F.; Zhang, Honggang

    2016-01-01

    The face is one of the most powerful channel of nonverbal communication. The most commonly used taxonomy to describe facial behaviour is the Facial Action Coding System (FACS). FACS segments the visible effects of facial muscle activation into 30+ action units (AUs). AUs, which may occur alone and in thousands of combinations, can describe nearly all-possible facial expressions. Most existing methods for automatic AU detection treat the problem using one-vs-all classifiers and fail to exploit dependencies among AU and facial features. We introduce joint-patch and multi-label learning (JPML) to address these issues. JPML leverages group sparsity by selecting a sparse subset of facial patches while learning a multi-label classifier. In four of five comparisons on three diverse datasets, CK+, GFT, and BP4D, JPML produced the highest average F1 scores in comparison with state-of-the art. PMID:27382243

  3. Virtue Quadratic Male Sling for stress incontinence—surgical guide for placement and delayed revision

    PubMed Central

    Rubin, Rachel S.; Xavier, Keith R.

    2017-01-01

    The algorithm for surgical management of post prostatectomy incontinence classically includes male slings and artificial urinary sphincter (AUS) placement. The Virtue Quadratic Male Sling was designed to provide both urethral elevation and prepubic compression making it a viable option for a wider spectrum of incontinent men whose symptoms range from mild to severe. With a focus on two key steps of the surgery, (I) sling fixation (II) use of intraoperative retrograde leak point pressure (RLPP), this guide is intended to outline a safe and efficacious treatment for post-prostatectomy incontinence. Intriguingly, the sling can be revised in the event of refractory or worsening leakage, and does not preclude the placement of an AUS should it be needed. This paper describes a step by step approach to performing the procedure as well as expert tips to improve outcomes and avoid/manage complications that have been learned over the years. PMID:28904899

  4. Aurone synthase is a catechol oxidase with hydroxylase activity and provides insights into the mechanism of plant polyphenol oxidases

    PubMed Central

    Molitor, Christian; Mauracher, Stephan Gerhard

    2016-01-01

    Tyrosinases and catechol oxidases belong to the family of polyphenol oxidases (PPOs). Tyrosinases catalyze the o-hydroxylation and oxidation of phenolic compounds, whereas catechol oxidases were so far defined to lack the hydroxylation activity and catalyze solely the oxidation of o-diphenolic compounds. Aurone synthase from Coreopsis grandiflora (AUS1) is a specialized plant PPO involved in the anabolic pathway of aurones. We present, to our knowledge, the first crystal structures of a latent plant PPO, its mature active and inactive form, caused by a sulfation of a copper binding histidine. Analysis of the latent proenzyme’s interface between the shielding C-terminal domain and the main core provides insights into its activation mechanisms. As AUS1 did not accept common tyrosinase substrates (tyrosine and tyramine), the enzyme is classified as a catechol oxidase. However, AUS1 showed hydroxylase activity toward its natural substrate (isoliquiritigenin), revealing that the hydroxylase activity is not correlated with the acceptance of common tyrosinase substrates. Therefore, we propose that the hydroxylase reaction is a general functionality of PPOs. Molecular dynamics simulations of docked substrate–enzyme complexes were performed, and a key residue was identified that influences the plant PPO’s acceptance or rejection of tyramine. Based on the evidenced hydroxylase activity and the interactions of specific residues with the substrates during the molecular dynamics simulations, a novel catalytic reaction mechanism for plant PPOs is proposed. The presented results strongly suggest that the physiological role of plant catechol oxidases were previously underestimated, as they might hydroxylate their—so far unknown—natural substrates in vivo. PMID:26976571

  5. Pocket ultrasound device as a complement to physical examination for ascites evaluation and guided paracentesis.

    PubMed

    Keil-Ríos, Daniel; Terrazas-Solís, Hiram; González-Garay, Alejandro; Sánchez-Ávila, Juan Francisco; García-Juárez, Ignacio

    2016-04-01

    The pocket ultrasound device (PUD) is a new tool that may be of use in the early detection of ascites. Abdominal ultrasound-guided paracentesis has been reported to decrease the rate of complications due to the procedure, but must be performed in a healthcare setting; this new tool may be a useful on an ambulatory basis. The aim of this study was to determine the diagnostic usefulness of the PUD in the diagnosis of ascites and the safety of guided paracentesis. We conducted a retrospective study that included adult patients suspected of having ascites and in whom an evaluation was performed with the PUD to identify it. Concordance with abdominal ultrasound (AUS) was determined with the Kappa coefficient. Sensitivity (Se), specificity (Sp) and likelihood ratios (LR) were determined and compared with physical examination, AUS, computed tomography and procurement of fluid by paracentesis. Complications resulting from the guided paracentesis were analyzed. 89 participants were included and 40 underwent a paracentesis. The PUD for ascites detection had 95.8 % Se, 81.8 % Sp, 5.27 +LR and 0.05 -LR. It had a concordance with AUS of 0.781 (p < 0.001). Technical problems during the guided paracentesis were present in only two participants (5 %) and three patients (7.5 %) developed minor complications that required no further intervention. There were no severe complications or deaths. This study suggests that the PUD is a reliable tool for ascites detection as a complement to physical examination and appears to be a safe method to perform guided paracentesis.

  6. Complications and Short-Term Explantation Rate Following Artificial Urinary Sphincter Implantation: Results from a Large Middle European Multi-Institutional Case Series.

    PubMed

    Kretschmer, Alexander; Hüsch, Tanja; Thomsen, Frauke; Kronlachner, Dominik; Obaje, Alice; Anding, Ralf; Pottek, Tobias; Rose, Achim; Olianas, Roberto; Friedl, Alexander; Hübner, Wilhelm; Homberg, Roland; Pfitzenmaier, Jesco; Grein, Ulrich; Queissert, Fabian; Naumann, Carsten Maik; Schweiger, Josef; Wotzka, Carola; Nyarangi-Dix, Joanne N; Hofmann, Torben; Seiler, Roland; Haferkamp, Axel; Bauer, Ricarda M

    2016-01-01

    Background/Aims/Objectives: To analyze perioperative complication and short-term explantation rates after perineal or penoscrotal single-cuff and double-cuff artificial urinary sphincter (AUS) implantation in a large middle European multi-institutional patient cohort. 467 male patients with stress urinary incontinence underwent implantation of a perineal single-cuff (n = 152), penoscrotal single-cuff (n = 99), or perineal double-cuff (n = 216) AUS between 2010 and 2012. Postoperative complications and 6-month explantation rates were assessed. For statistical analysis, Fisher's exact test and Kruskal-Wallis rank sum test, and a multiple logistic regression model were used (p < 0.05). Compared to perineal single-cuff AUS, penoscrotal single-cuff implantation led to significantly increased short-term explantation rates (8.6% (perineal) vs. 19.2% (penoscrotal), p = 0.019). The postoperative infection rate was significantly higher after double-cuff compared to single-cuff implantation (6.0% (single-cuff) vs. 13.9% (double-cuff), p = 0.019). The short-term explantation rate after primary double-cuff placement was 6.5% (p = 0.543 vs. perineal single-cuff). In multivariate analysis, the penoscrotal approach (p = 0.004), intraoperative complications (p = 0.005), postoperative bleeding (p = 0.011), and perioperative infection (p < 0.001) were independent risk factors for short-term explantation. Providing data from a large contemporary multi-institutional patient cohort from high-volume and low-volume institutions, our results reflect the current standard of care in middle Europe. We indicate that the penoscrotal approach is an independent risk factor for increased short-term explantation rates. © 2016 S. Karger AG, Basel.

  7. Continuing Professional Development via Social Media or Conference Attendance: A Cost Analysis

    PubMed Central

    Tunnecliff, Jacqueline; Morgan, Prue; Gaida, James; Keating, Jennifer; Clearihan, Lyn; Sadasivan, Sivalal; Ganesh, Shankar; Mohanty, Patitapaban; Weiner, John; Rivers, George; Ilic, Dragan

    2017-01-01

    Background Professional development is essential in the health disciplines. Knowing the cost and value of educational approaches informs decisions and choices about learning and teaching practices. Objective The primary aim of this study was to conduct a cost analysis of participation in continuing professional development via social media compared with live conference attendance. Methods Clinicians interested in musculoskeletal care were invited to participate in the study activities. Quantitative data were obtained from an anonymous electronic questionnaire. Results Of the 272 individuals invited to contribute data to this study, 150 clinicians predominantly from Australia, United States, United Kingdom, India, and Malaysia completed the outcome measures. Half of the respondents (78/150, 52.0%) believed that they would learn more with the live conference format. The median perceived participation costs for the live conference format was Aus $1596 (interquartile range, IQR 172.50-2852.00). The perceived cost of participation for equivalent content delivered via social media was Aus $15 (IQR 0.00-58.50). The majority of the clinicians (114/146, 78.1%, missing data n=4) indicated that they would pay for a subscription-based service, delivered by social media, to the median value of Aus $59.50. Conclusions Social media platforms are evolving into an acceptable and financially sustainable medium for the continued professional development of health professionals. When factoring in the reduced costs of participation and the reduced loss of employable hours from the perspective of the health service, professional development via social media has unique strengths that challenge the traditional live conference delivery format. PMID:28360023

  8. Halorubrum chaoviator sp. nov., a haloarchaeon isolated from sea salt in Baja California, Mexico, Western Australia and Naxos, Greece

    PubMed Central

    Mancinelli, Rocco L.; Landheim, Ragnhild; Sanchez-Porro, Cristina; Dornmayr-Pfaffenhuemer, Marion; Gruber, Claudia; Legat, Andrea; Ventosa, Antonio; Radax, Christian; Ihara, Kunio; White, Melisa R.; Stan-Lotter, Helga

    2011-01-01

    Three halophilic isolates, strains Halo-G*T, AUS-1 and Naxos II, were compared. Halo-G* was isolated from an evaporitic salt crystal from Baja California, Mexico, whereas AUS-1 and Naxos II were isolated from salt pools in Western Australia and the Greek island of Naxos, respectively. Halo-G*T had been exposed previously to conditions of outer space and survived 2 weeks on the Biopan facility. Chemotaxonomic and molecular comparisons suggested high similarity between the three strains. Phylogenetic analysis based on the 16S rRNA gene sequences revealed that the strains clustered with Halorubrum species, showing sequence similarities of 99.2–97.1 %. The DNA–DNA hybridization values of strain Halo-G*T and strains AUS-1 and Naxos II are 73 and 75 %, respectively, indicating that they constitute a single species. The DNA relatedness between strain Halo-G*T and the type strains of 13 closely related species of the genus Halorubrum ranged from 39 to 2 %, suggesting that the three isolates constitute a different genospecies. The G+C content of the DNA of the three strains was 65.5–66.5 mol%. All three strains contained C20C20 derivatives of diethers of phosphatidylglycerol, phosphatidylglyceromethylphosphate and phosphatidylglycerolsulfate, together with a sulfated glycolipid. On the basis of these results, a novel species that includes the three strains is proposed, with the name Halorubrum chaoviator sp. nov. The type strain is strain Halo-G*T (=DSM 19316T =NCIMB 14426T =ATCC BAA-1602T). PMID:19567575

  9. Investigating the Impacts of Global Education Curriculum on the Values and Attitudes of Secondary Students

    ERIC Educational Resources Information Center

    DeNobile, John; Kleeman, Grant; Zarkos, Anastasia

    2014-01-01

    Each year, World Vision and AusAID devote substantial resources to their educational programs. These initiatives include the production and dissemination of Global Education related instructional materials and the provision of professional learning for teachers. Given the substantial funds involved, it is important that we evaluate the…

  10. Interactions Between Monetary and Fiscal Policies in the Euro Area

    DTIC Science & Technology

    2006-03-01

    185-210. "* Haucap, Justus, Uwe Pauly & Christian Wey, Collective Wage Setting When Wages Are Generally Binding: An Antitrust Perspective, Nr. 106 (2000...Generations Model, Nr. 8/1999. "* Henning, Andreas & Wolfgang Greiner, Organknappheit im Transplantationswesen - L6sungs- ansditze aus 6konomischer Sicht, Nr. 7

  11. Structural Behavior Under Precision Impact Tests

    DTIC Science & Technology

    1996-08-01

    ASPECTS OF IMPACT TESTING The problem of impact between two bodies has been studied extensively (for example, Eibl 1987, Feyerabend 1988, Krauthammer...Concrete for Hazard Protection, Edinburgh, Scotland, pp. 175-186. Feyerabend , M., 1988, "Der harte Querstoss auf Stützen aus Stahl und Stahlbeton

  12. Validation of yield component traits identified by GWA mapping in a rice tropical japonica x tropical japonica RIL mapping population

    USDA-ARS?s Scientific Manuscript database

    The Rice Diversity Panel 1 (RDP1) was developed for genome-wide association (GWA) mapping to explore the five diverse rice (Oryza sativa) subpopulations (indica, aus, aromatic, temperate japonica and tropical japonica). RDP1 was evaluated for over 30 agronomic and morphological traits, most of whic...

  13. PubMed

    Hachenberg, Thomas; Kols, Kerstin

    2018-04-01

    Schlichtungsstellen für Arzthaftpflichtfragen bieten Patienten, Ärzten und Versicherern eine Möglichkeit, Arzthaftungsstreitigkeiten außergerichtlich zu klären. In der Rubrik „Fälle der Schlichtungsstelle“ stellen wir abgeschlossene Fälle aus der Schlichtungsstelle für Arzthaftpflichtfragen der norddeutschen Ärztekammern vor.

  14. One-dimensional array of gold nanoparticles fabricated using biotemplate and its application to fine FET

    NASA Astrophysics Data System (ADS)

    Ban, Takahiko; Uenuma, Mutsunori; Migita, Shinji; Okamoto, Naofumi; Ishikawa, Yasuaki; Uraoka, Yukiharu; Yamashita, Ichiro; Yamamoto, Shin-ichi

    2018-06-01

    By synthesizing AuS nanoparticles (NPs) with spherical shell protein (ferritin) and using a V-groove, a one-dimensional array of NPs was formed at the bottom of the V-groove. It has been reported that AuS NPs are converted to Au NPs by UV/ozone treatment. Floating gate memory (FGM) was fabricated by applying this one-dimensional array to V-grooved junctionless (JL) FETs, V-grooved nin-like-type FETs, and pip-like-type FETs, which are fine FETs. In JL-FETs, it is considered that conversion occurred because of good charge storage efficiency, and operation in the opposite direction to normal FGM operation was seen. In the nin-like and pip-like types devices, the same operation as in conventional FGM was shown, and the width of the memory window was about the same size as when one electron entered one NP. The one-dimensional arrangement of the metal NPs used in this study is considered to be applicable to various fields of nanotechnology.

  15. Spritzgießen

    NASA Astrophysics Data System (ADS)

    Bürkle, Erwin; Ammer, Daniel; Würtele, Martin

    Kunststoffe zu spritzgießen ist eine der fortschrittlichsten Verarbeitungstechnologien. Durch Spritzgießen, ein Verfahren der Urformtechnik werden Formteile in der Regel mit komplexer Geometrie vollautomatisch hergestellt. Ausgehend vom Verfahrensablauf werden Thermoplaste, Duroplaste oder Kautschuk in einer Spritzgießmaschine aus dem Feststoffzustand heraus aufgeschmolzen, in einen formgebenden Hohlraum (Werkzeug) eingespritzt, dort verdichtet, abgekühlt oder zur Reaktion gebracht und dann als Formteil aus dem Werkzeug ausgeworfen. Etwa 60 % aller Kunststoffverarbeitungsmaschinen sind Spritzgießmaschinen (Abb. 26.1). Auf ihnen werden Formteile mit sehr niedrigen Massen im mg-Bereich bis hin zu großen Massen in zwei - z. T. sogar auch dreistelligen kg-Bereich hergestellt. Der Prozess des Spritzgießens nutzt in idealer Weise das besondere physikalische Verhalten der Kunststoffe. In einem verhältnismäßig einfachen Prozess werden durch Erwärmen des Kunststoffes und der nachfolgenden Formgebung im Schmelzezustand mit abschließender Abkühlung in einem formgebenden Werkzeug direkt gebrauchsfertige Formteile hergestellt [1, 31].

  16. Cost-effectiveness of monitoring free flaps.

    PubMed

    Subramaniam, Shiva; Sharp, David; Jardim, Christopher; Batstone, Martin D

    2016-06-01

    Methods of free flap monitoring have become more sophisticated and expensive. This study aims to determine the cost of free flap monitoring and examine its cost effectiveness. We examined a group of patients who had had free flaps to the head and neck over a two-year period, and combined these results with costs obtained from business managers and staff. There were 132 free flaps with a success rate of 99%. The cost of monitoring was Aus $193/flap. Clinical monitoring during this time period cost Aus$25 476 and did not lead to the salvage of any free flaps. Cost equivalence is reached between monitoring and not monitoring only at a failure rate of 15.8%. This is to our knowledge the first study to calculate the cost of clinical monitoring of free flaps, and to examine its cost-effectiveness. Copyright © 2016 The British Association of Oral and Maxillofacial Surgeons. All rights reserved.

  17. IFN-Dependent and -Independent Reduction in West Nile Virus Infectivity in Human Dermal Fibroblasts

    PubMed Central

    Hoover, Lisa I.; Fredericksen, Brenda L.

    2014-01-01

    Although dermal fibroblasts are one of the first cell types exposed to West Nile virus (WNV) during a blood meal by an infected mosquito, little is known about WNV replication within this cell type. Here, we demonstrate that neuroinvasive, WNV-New York (WNV-NY), and nonneuroinvasive, WNV-Australia (WNV-AUS60) strains are able to infect and replicate in primary human dermal fibroblasts (HDFs). However, WNV-AUS60 replication and spread within HDFs was reduced compared to that of WNV-NY due to an interferon (IFN)-independent reduction in viral infectivity early in infection. Additionally, replication of both strains was constrained late in infection by an IFN-β-dependent reduction in particle infectivity. Overall, our data indicates that human dermal fibroblasts are capable of supporting WNV replication; however, the low infectivity of particles produced from HDFs late in infection suggests that this cell type likely plays a limited role as a viral reservoir in vivo. PMID:24662674

  18. Use of the Rice Diversity Panel 1 to map traits important for rice improvement

    USDA-ARS?s Scientific Manuscript database

    The ‘Rice Diversity Panel 1’ (RDP1) is composed of 421 diverse Oryza sativa accessions from 79 countries, including indica and aus which belong to the Indica varietal group, and tropical japonica, temperate japonica, and aromatic (Group V) which comprise the Japonica varietal group. This panel was ...

  19. Improving Electrical Engineering Education at the American University of Sharjah through Continuous Assessment

    ERIC Educational Resources Information Center

    Al-Nashash, Hasan; Khaliq, Abdul; Qaddoumi, Nasser; Al-Assaf, Yousef; Assaleh, Khaled; Dhaouadi, Rached; El-Tarhuni, Mohamed

    2009-01-01

    The electrical engineering (ELE) program at the American University of Sharjah (AUS) is designed to fulfill the ABET criteria. Several assessment tools are used to qualitatively and quantitatively measure the level of achievement of the program's educational objectives and outcomes. These tools include alumni, employer, and graduate advisor…

  20. Physik gestern und heute: Visualisierung mit der Schlierenmethode

    NASA Astrophysics Data System (ADS)

    Heering, Peter

    2006-07-01

    Der Name des österreichischen Forschers Ernst Mach ist heute noch mit der Schallgeschwindigkeit verbunden. Diese Auszeichnung resultiert aus Machs Untersuchungen, wie sich Projektile mit Überschallgeschwindigkeit durch die Luft bewegen. Gerade in jüngster Zeit hat die Anwendung derartiger Methoden durch technische Modifikationen wieder einen Aufschwung erfahren.

  1. Normung (Standardisierung)

    NASA Astrophysics Data System (ADS)

    Kostmann, Dirk

    Normung ist aus dem täglichen Leben nicht wegzudenken. In allen Bereichen des Lebens begegnet man Normen, die Aktivitäten reichen von Festlegungen für Kindersitze im Auto über Implantate zum Gelenkersatz bis zu Schraubengrößen oder Verfahren zur Optimierung von Unternehmen.

  2. Attention Deficit Hyperactivity Disorder in Preschool Aged Children. Clinical Approaches to Early Intervention in Child and Adolescent Mental Health, Volume 1.

    ERIC Educational Resources Information Center

    Hazell, Philip

    The need for guidelines for early intervention of children experiencing Attention Deficit Hyperactivity Disorders (ADHD) was identified by the Australian Early Intervention Network (AusEinet). This document attempts to guide appropriate practice in the care of children and adolescents with ADHD. The guidelines are designed to provide information…

  3. Exploring MATESOL Student "Resistance" to Reflection

    ERIC Educational Resources Information Center

    Gunn, Cindy L.

    2010-01-01

    Many teacher training programs, including MATESOL programs, encourage their trainees to be reflective practitioners. The MATESOL program at The American University of Sharjah (AUS) is no exception and offers the students many opportunities for reflection. This article discusses my experience with a recent cohort's reaction to being asked to…

  4. Learning to Lead: A Social Justice Perspective on Understanding Elementary Teacher Leadership in Papua New Guinea

    ERIC Educational Resources Information Center

    Brownlee, Joanne; Scholes, Laura; Farrell, Ann; Davis, Julie; Cook, Donna

    2012-01-01

    Leadership in elementary education is currently recognized as a political imperative in Papua New Guinea (PNG), as the nation develops strategies towards equitable access to schooling. One recent initiative aimed at building educational leadership was an intensive Australian Leadership Award Fellowship (ALAF) program funded by AusAID, involving a…

  5. Cost-effectiveness of molecular testing for thyroid nodules with atypia of undetermined significance cytology.

    PubMed

    Lee, Lawrence; How, Jacques; Tabah, Roger J; Mitmaker, Elliot J

    2014-08-01

    Novel molecular diagnostics, such as the gene expression classifier (GEC) and gene mutation panel (GMP) testing, may improve the management for thyroid nodules with atypia of undetermined significance (AUS) cytology. The cost-effectiveness of an approach combining both tests in different practice settings in North America is unknown. The aim of the study was to determine the cost-effectiveness of two diagnostic molecular tests, singly or in combination, for AUS thyroid nodules. We constructed a microsimulation model to investigate cost-effectiveness from US (Medicare) and Canadian healthcare system perspectives. Low-risk patients with AUS thyroid nodules were simulated. We examined five management strategies: 1) routine GEC; 2) routine GEC + selective GMP; 3) routine GMP; 4) routine GMP + selective GEC; and 5) standard management. Lifetime costs and quality-adjusted life-years were measured. From the US perspective, the routine GEC + selective GMP strategy was the dominant strategy. From the Canadian perspective, routine GEC + selective GMP cost and additional CAN$24 030 per quality-adjusted life-year gained over standard management, and was dominant over the other strategies. Sensitivity analyses reported that the decisions from both perspectives were sensitive to variations in the probability of malignancy in the nodule and the costs of the GEC and GMP. The probability of cost-effectiveness for routine GEC + selective GMP was low. In the US setting, the most cost-effective strategy was routine GEC + selective GMP. In the Canadian setting, standard management was most likely to be cost effective. The cost of these molecular diagnostics will need to be reduced to increase their cost-effectiveness for practice settings outside the United States.

  6. Morphological and Molecular Data Reveal Three Distinct Populations of Indian Wild Rice Oryza rufipogon Griff. Species Complex.

    PubMed

    Singh, Balwant; Singh, Nisha; Mishra, Shefali; Tripathi, Kabita; Singh, Bikram P; Rai, Vandna; Singh, Ashok K; Singh, Nagendra K

    2018-01-01

    Wild relatives of crops possess adaptive mutations for agronomically important traits, which could play significant role in crop improvement for sustainable agriculture. However, global climate change and human activities pose serious threats to the natural habitats leading to erosion of genetic diversity of wild rice populations. The purpose of this study was to explore and characterize India's huge untapped wild rice diversity in Oryza rufipogon Griff. species complex from a wide range of ecological niches. We made strategic expeditions around diversity hot spots in 64 districts of nine different agro-climatic zones of the country and collected 418 wild rice accessions. Significant variation was observed among the accessions for 46 morphological descriptors, allowing classification into O. nivara, O. rufipogon , and O. sativa f. spontanea morpho-taxonomic groups. Genome-specific pSINE1 markers confirmed all the accessions having AA genome, which were further classified using ecotype-specific pSINE1 markers into annual, perennial, intermediate, and an unknown type. Principal component analysis revealed continuous variation for the morphological traits in each ecotype group. Genetic diversity analysis based on multi-allelic SSR markers clustered these accessions into three major groups and analysis of molecular variance for nine agro-climatic zones showed that 68% of the genetic variation was inherent amongst individuals while only 11% of the variation separated the zones, though there was significant correlation between genetic and spatial distances of the accessions. Model based population structure analysis using genome wide bi-allelic SNP markers revealed three sub-populations designated 'Pro-Indica,' 'Pro-Aus,' and 'Mid-Gangetic,' which showed poor correspondence with the morpho - taxonomic classification or pSINE1 ecotypes. There was Pan-India distribution of the 'Pro-Indica' and 'Pro-Aus' sub-populations across agro-climatic zones, indicating a more

  7. Drei neue gamma-Doradus-Sterne aus der ASAS-3 Datenbank

    NASA Astrophysics Data System (ADS)

    Bernhard, Klaus; Huemmerich, Stefan

    2016-02-01

    By analysis of data from the ASAS-3 archive, the stars HD 18011, NSV 16873 and NSV 3272 were identified as multiperiodic gamma Doradus variables. Essential information on these variables is presented, along with unwhitened frequency spectra and statistically significant frequencies, as derived with Period 04.

  8. Assessing Agency of University Students: Validation of the AUS Scale

    ERIC Educational Resources Information Center

    Jääskelä, Päivikki; Poikkeus, Anna-Maija; Vasalampi, Kati; Valleala, Ulla Maija; Rasku-Puttonen, Helena

    2017-01-01

    Fostering agency as a core component of professionalism is seen as a critical task of higher education. However, the tools for assessing university students' agency, and the pedagogical and relational resources needed for its development, are lacking. The present study describes the theoretical foundations and factor structure of the newly…

  9. Maritime Trade Warfare in the 21st Century

    DTIC Science & Technology

    2011-05-04

    and thirty escorts to blockade the entire coast of South Africa and Mozambique in its efforts to stop oil shipments to Rhodesia . 7 In addition, a...use during the Rhodesia blockade, the Royal Navy identified the Greek flagged vessel Joanna V as suspect after she sailed from the Arabian Gulf to

  10. Incorporating Computer-Aided Software in the Undergraduate Chemical Engineering Core Courses

    ERIC Educational Resources Information Center

    Alnaizy, Raafat; Abdel-Jabbar, Nabil; Ibrahim, Taleb H.; Husseini, Ghaleb A.

    2014-01-01

    Introductions of computer-aided software and simulators are implemented during the sophomore-year of the chemical engineering (ChE) curriculum at the American University of Sharjah (AUS). Our faculty concurs that software integration within the curriculum is beneficial to our students, as evidenced by the positive feedback received from industry…

  11. A Systems Engineering Approach to the Development of an Autonomous Sailing Vessel

    DTIC Science & Technology

    2011-01-01

    netbook . Power issues and heat dissipation must also be considered in the selection process. Actuation: Because the system is designed to allow a...use of a lap- top or netbook as the primary processor. While we have used a small form com- puter (Pico system) in the past, the Technical Support

  12. France’s New NATO Policy: Leveraging a Realignment of the Alliance?

    DTIC Science & Technology

    2009-01-01

    things that others only think. Former Socialist foreign minister, Hubert Védrine, put it in particularly stark terms: Were France to become a...see Ronja Kempin and Marco Overhaus, “Kein grosser Sprung in der Entwicklung der ESVP: Lehren aus der französischen Ratpräsidentschaft” [“No great

  13. Offshore Teaching Practice in the Australia-Pacific Technical College: A Case Study in the South Pacific

    ERIC Educational Resources Information Center

    Bailey, Anthony

    2011-01-01

    This paper investigates teaching practices at the Australia-Pacific Technical College (APTC), which comprise a unique official development assistance (ODA) program funded by the Government of Australia (GoA) and managed through the Australian Agency for International Development (AusAid) with the aim of training and equipping workers from the…

  14. An Investigation of the Teacher Advancement Program and Student Performance in Urban Schools

    ERIC Educational Resources Information Center

    Grant, Ginger Madonna

    2010-01-01

    In 2005, the achievement gap between African-American and Caucasian students doubled in the state of Louisiana. Sixty-three percent of the public schools in an urban school district in southeastern Louisiana received an Academically Unacceptable Status (AUS) rating according to Louisiana accountability standards. In 2006, the Louisiana Board of…

  15. Rowing the Weaves of Community Participation: Good Practices in Early Childhood Development (ECD) Program in Rural Central Lombok, West Nusa Tenggara

    ERIC Educational Resources Information Center

    Abdillah, Ali

    2014-01-01

    This paper describes the rural community participation within the context of an integrated early childhood development program initiated by the government of Indonesia in partnership with UNICEF and AusAID in Central Lombok (2008-2010). Based on purposive interviews with relevant stakeholders, as well as an analysis of past documents, researchers'…

  16. On Sources of the Word Length Effect in Young Readers

    ERIC Educational Resources Information Center

    Gagl, Benjamin; Hawelka, Stefan; Wimmer, Heinz

    2015-01-01

    We investigated how letter length, phoneme length, and consonant clusters contribute to the word length effect in 2nd- and 4th-grade children. They read words from three different conditions: In one condition, letter length increased but phoneme length did not due to multiletter graphemes (H"aus"-B"auch"-S"chach"). In…

  17. Computerunterstütztes Modellieren mit Musiknetzen

    NASA Astrophysics Data System (ADS)

    Levens, Ulla

    In der folgenden Ausführung geht es um eine Anwendung von Petri-Netzen im Bereich Musik. Ausgehend von der Implementierung einer speziellen Anwendung, dem Programmsystem ScoreSynth, wird das zugrundeliegende Konzept erläutert und anschließend an einem kleinen Beispiel veranschaulicht. Dieser Beitrag ist ein Auszug aus [Lev95b].

  18. Aureusimines in Staphylococcus aureus are not involved in virulence.

    PubMed

    Sun, Fei; Cho, Hoonsik; Jeong, Do-Won; Li, Chunling; He, Chuan; Bae, Taeok

    2010-12-29

    Recently, dipeptide aureusimines were reported to activate expression of staphylococcal virulence genes, such as alpha-hemolysin, and increase S. aureus virulence. Surprisingly, most of the virulence genes affected by aureusimines form part of the regulon of the SaeRS two component system (TCS), raising the possibility that SaeRS might be directly or indirectly involved in the aureusimine-dependent signaling process. Using HPLC analyses, we confirmed that a transposon mutant of ausA, the gene encoding the aureusimine dipeptide synthesis enzyme, does not produce dipeptides. However, the transposon mutant showed normal hemolysis activity and alpha-hemolysin/SaeP production. Furthermore, the P1 promoter of the sae operon, one of the targets of the SaeRS TCS, showed normal transcription activity. Moreover, in contrast to the original report, the ausA transposon mutant did not exhibit attenuated virulence in an animal infection model. DNA sequencing revealed that the ausA deletion mutant used in the original study has an 83 nt-duplication in saeS. Hemolysis activity of the original mutant was restored by a plasmid carrying the sae operon. A mutant of the sae operon showed elevated resistance to chloramphenicol and erythromycin, two antibiotics widely used during staphylococcal mutagenesis. At 43°C in the presence of erythromycin and aeration, the conditions typically employed for staphylococcal mutagenesis, an saeR transposon mutant grew much faster than a control mutant and the saeR mutant was highly enriched in a mixed culture experiment. Our results show that the previously reported roles of aureusimines in staphylococcal gene regulation and virulence were due to an unintended mutation in saeS, which was likely selected due to elevated resistance of the mutant to environmental stresses. Thus, there is no evidence indicating that the dipeptide aureusimines play a role in sae-mediated virulence factor production or contribute to staphylococcal virulence.

  19. The composition and initial evaluation of a grimace scale in ferrets after surgical implantation of a telemetry probe.

    PubMed

    Reijgwart, Marsinah L; Schoemaker, Nico J; Pascuzzo, Riccardo; Leach, Matthew C; Stodel, Melanie; de Nies, Loes; Hendriksen, Coenraad F M; van der Meer, Miriam; Vinke, Claudia M; van Zeeland, Yvonne R A

    2017-01-01

    Reliable recognition of pain is difficult in ferrets as many currently available parameters are non-specific, inconsistent and/or impractical. Grimace scales have successfully been applied to assess pain in different animal species and might also be applicable to ferrets. To compose a Ferret Grimace Scale (FGS), we studied the facial musculature of ferrets and compared lateral photographs of 19 ferret faces at six time points before and after intraperitoneal telemetry probe implantation. We identified the Action Units (AUs) orbital tightening, nose bulging, cheek bulging, ear changes and whisker retraction as potential indicators of pain in ferrets. To evaluate whether these AUs could reliably be used to identify photographs taken before and after surgery, the photographs were scored 0, 1 or 2 (not, moderately or obviously present) by 11 observers that were blinded to the treatment and timing of the photographs. All AU-scores assigned to the photographs taken five hours after surgery were significantly higher compared to their time-matched baseline scores. Further analysis using the weights that were obtained using a Linear Discriminant Analysis revealed that scoring orbital tightening alone was sufficient to make this distinction with high sensitivity, specificity and accuracy. Including weighted scores for nose bulging, cheek bulging and ear change did not change this. As these AUs had more missing values than orbital tightening, their descriptions should be re-evaluated. Including whisker retraction, which had a negative weight, resulted in lower accuracy and should therefore in its current form be left out of the FGS. Overall, the results of this study suggest that the FGS and the AU orbital tightening in particular could be useful in a multifactorial pain assessment protocol for ferrets. However, before applying the FGS in practice, it should be further validated by incorporating more time points before and after applying (different) painful stimuli, and

  20. Opportunities for Integrated Ecological Analysis across Inland Australia with Standardised Data from Ausplots Rangelands.

    PubMed

    Guerin, Greg R; Sparrow, Ben; Tokmakoff, Andrew; Smyth, Anita; Leitch, Emrys; Baruch, Zdravko; Lowe, Andrew J

    2017-01-01

    Australian rangelands ecosystems cover 81% of the continent but are understudied and continental-scale research has been limited in part by a lack of precise data that are standardised between jurisdictions. We present a new dataset from AusPlots Rangelands that enables integrative rangelands analysis due to its geographic scope and standardised methodology. The method provides data on vegetation and soils, enabling comparison of a suite of metrics including fractional vegetation cover, basal area, and species richness, diversity, and composition. Cover estimates are robust and repeatable, allowing comparisons among environments and detection of modest change. The 442 field plots presented here span a rainfall gradient of 129-1437 mm Mean annual precipitation with varying seasonality. Vegetation measurements include vouchered vascular plant species, growth form, basal area, height, cover and substrate type from 1010 point intercepts as well as systematically recorded absences, which are useful for predictive modelling and validation of remote sensing applications. Leaf and soil samples are sampled for downstream chemical and genomic analysis. We overview the sampling of vegetation parameters and environments, applying the data to the question of how species abundance distributions (SADs) vary over climatic gradients, a key question for the influence of environmental change on ecosystem processes. We found linear relationships between SAD shape and rainfall within grassland and shrubland communities, indicating more uneven abundance in deserts and suggesting relative abundance may shift as a consequence of climate change, resulting in altered diversity and ecosystem function. The standardised data of AusPlots enables such analyses at large spatial scales, and the testing of predictions through time with longitudinal sampling. In future, the AusPlots field program will be directed towards improving coverage of space, under-represented environments, vegetation types

  1. Impact of Reclassification on Thyroid Nodules with Architectural Atypia: From Non-Invasive Encapsulated Follicular Variant Papillary Thyroid Carcinomas to Non-Invasive Follicular Thyroid Neoplasm with Papillary-Like Nuclear Features

    PubMed Central

    Jeon, Min Ji; Song, Dong Eun; Jung, Chan Kwon; Kim, Won Gu; Kwon, Hyemi; Lee, Yu-Mi; Sung, Tae-Yon; Yoon, Jong Ho; Chung, Ki-Wook; Hong, Suck Joon; Baek, Jung Hwan; Lee, Jeong Hyun; Kim, Tae Yong; Shong, Young Kee; Kim, Won Bae

    2016-01-01

    Background The follicular variant of papillary thyroid cancer (FVPTC), especially the encapsulated non-invasive subtype, is a controversial entity. Recent study suggested using ‘non-invasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP)’ for these indolent carcinomas. We evaluated the impact of reclassification from non-invasive encapsulated FVPTCs (EFVPTCs) to NIFTPs in the diagnosis of thyroid nodules with architectural atypia. Methods We reviewed 1301 thyroid nodules with architectural atypia in core needle biopsy (CNB) specimens obtained from March 2012 to February 2013. Nodules were classified into atypia of undetermined significance with architectural atypia (AUS-A, 984, 76%) or follicular neoplasm/suspicious for a follicular neoplasm (FN/SFN, 317, 24%). Among them, diagnostic surgery was performed in 384 nodules (30%). Results In total, 160 nodules (42%) presented final malignant diagnoses including 39 non-invasive encapsulated FVPTCs (10%). The malignancy rate was estimated to be 7–35% in AUS-A nodules and 28–49% in FN/SFN nodules. After reclassification, the malignancy rate was much decreased and estimated to be 5–24% in AUS-A nodules, and 23–39% in FN/SFN nodules. Thyroid nodules with final malignant diagnoses were significantly more likely to have a FN/SFN CNB diagnosis, malignant US features and concomitant nuclear atypia in CNB specimens. However, these factors could not differentiate NIFTPs from other malignancies. Conclusions After reclassification of non-invasive EFVPTCs to NIFTPs, the malignancy rate of thyroid nodules with architectural atypia in CNB specimens was decreased. However, there were no preoperative factors differentiating other malignancies from NIFTPs. The presence of malignant US features or concomitant nuclear atypia might help clinicians deciding diagnostic surgery but, these features also might indicate NIFTPs. PMID:27936121

  2. Long-term outcomes after primary failures of artificial urinary sphincter implantation.

    PubMed

    Wang, Rou; McGuire, Edward J; He, Chang; Faerber, Gary J; Latini, Jerilyn M

    2012-04-01

    To assess our institutional outcomes after primary artificial urinary sphincter (AUS) failures. From 1985 to 2010, a total of 149 patients underwent 318 primary and additional AUS procedures. We classified additional procedures as revisions, replacements, or explantations. At a median of 52 months (range, 6-250 months), 53% of patients had required at least 1 additional procedure beyond their initial implantation. These included 106 (63%) revisions, 42 (24.9%) explantations, and 21 (12.4%) replacements. The most common revision was reservoir upsizing (37/106). Reasons for first revision included recurrent incontinence (56.7%), mechanical malfunction (22%), and infection or erosion (18.6%). Explantations were performed primarily for infection and erosion (64.3%). Median time to first revision was 20.1 months (range, 0.1-173 months) after implantation, with a median of 9.5 months (range, 1-102 months) between revisions. Explantation occurred at a median of 22 months (range, 1-221 months) after implant, and subsequent replacement at a median of 33.6 months (range, 2-138 months). At 5 years, 28/83 (33.7%) patients had undergone no additional procedures. Patients with previous radiation were more likely to experience infection (P = .03; OR 3.99; 95% CI 1.03-15.42). Patients with previous myocardial infarction were more likely to experience erosion (P = .04; OR 2.29; 95% CI 1.05-5.02), and obese patients were more likely to experience mechanical malfunction (P = .04; OR 2.62; 95% CI 1.07-6.4). More than half of patients with an AUS will require additional procedures, most likely revision. Radiation, previous myocardial infarction, and obesity are linked to complications. Median time to first revision or explantation is slightly less than 2 years, indicating that long-term follow-up is required after initial implantation. Copyright © 2012 Elsevier Inc. All rights reserved.

  3. Continuing Professional Development via Social Media or Conference Attendance: A Cost Analysis.

    PubMed

    Maloney, Stephen; Tunnecliff, Jacqueline; Morgan, Prue; Gaida, James; Keating, Jennifer; Clearihan, Lyn; Sadasivan, Sivalal; Ganesh, Shankar; Mohanty, Patitapaban; Weiner, John; Rivers, George; Ilic, Dragan

    2017-03-30

    Professional development is essential in the health disciplines. Knowing the cost and value of educational approaches informs decisions and choices about learning and teaching practices. The primary aim of this study was to conduct a cost analysis of participation in continuing professional development via social media compared with live conference attendance. Clinicians interested in musculoskeletal care were invited to participate in the study activities. Quantitative data were obtained from an anonymous electronic questionnaire. Of the 272 individuals invited to contribute data to this study, 150 clinicians predominantly from Australia, United States, United Kingdom, India, and Malaysia completed the outcome measures. Half of the respondents (78/150, 52.0%) believed that they would learn more with the live conference format. The median perceived participation costs for the live conference format was Aus $1596 (interquartile range, IQR 172.50-2852.00). The perceived cost of participation for equivalent content delivered via social media was Aus $15 (IQR 0.00-58.50). The majority of the clinicians (114/146, 78.1%, missing data n=4) indicated that they would pay for a subscription-based service, delivered by social media, to the median value of Aus $59.50. Social media platforms are evolving into an acceptable and financially sustainable medium for the continued professional development of health professionals. When factoring in the reduced costs of participation and the reduced loss of employable hours from the perspective of the health service, professional development via social media has unique strengths that challenge the traditional live conference delivery format. ©Stephen Maloney, Jacqueline Tunnecliff, Prue Morgan, James Gaida, Jennifer Keating, Lyn Clearihan, Sivalal Sadasivan, Shankar Ganesh, Patitapaban Mohanty, John Weiner, George Rivers, Dragan Ilic. Originally published in JMIR Medical Education (http://mededu.jmir.org), 30.03.2017.

  4. The composition and initial evaluation of a grimace scale in ferrets after surgical implantation of a telemetry probe

    PubMed Central

    Schoemaker, Nico J.; Pascuzzo, Riccardo; Leach, Matthew C.; Stodel, Melanie; de Nies, Loes; Hendriksen, Coenraad F. M.; van der Meer, Miriam; Vinke, Claudia M.; van Zeeland, Yvonne R. A.

    2017-01-01

    Reliable recognition of pain is difficult in ferrets as many currently available parameters are non-specific, inconsistent and/or impractical. Grimace scales have successfully been applied to assess pain in different animal species and might also be applicable to ferrets. To compose a Ferret Grimace Scale (FGS), we studied the facial musculature of ferrets and compared lateral photographs of 19 ferret faces at six time points before and after intraperitoneal telemetry probe implantation. We identified the Action Units (AUs) orbital tightening, nose bulging, cheek bulging, ear changes and whisker retraction as potential indicators of pain in ferrets. To evaluate whether these AUs could reliably be used to identify photographs taken before and after surgery, the photographs were scored 0, 1 or 2 (not, moderately or obviously present) by 11 observers that were blinded to the treatment and timing of the photographs. All AU-scores assigned to the photographs taken five hours after surgery were significantly higher compared to their time-matched baseline scores. Further analysis using the weights that were obtained using a Linear Discriminant Analysis revealed that scoring orbital tightening alone was sufficient to make this distinction with high sensitivity, specificity and accuracy. Including weighted scores for nose bulging, cheek bulging and ear change did not change this. As these AUs had more missing values than orbital tightening, their descriptions should be re-evaluated. Including whisker retraction, which had a negative weight, resulted in lower accuracy and should therefore in its current form be left out of the FGS. Overall, the results of this study suggest that the FGS and the AU orbital tightening in particular could be useful in a multifactorial pain assessment protocol for ferrets. However, before applying the FGS in practice, it should be further validated by incorporating more time points before and after applying (different) painful stimuli, and

  5. Utilization of penile prosthesis and male incontinence prosthetics in Saudi Arabia.

    PubMed

    Alwaal, Amjad; Al-Sayyad, Ahmad J

    2017-01-01

    Erectile dysfunction is a prevalent disease affecting over 50% of men between the ages of 40 and 70 years. Penile prosthesis represents the end of the line treatment when other less invasive therapies fail or are contraindicated. Male stress urinary incontinence can significantly diminish quality of life and lead to embarrassment and social withdrawal. Surgical therapies, such as male urethral slings and artificial urinary sphincters (AUS), are considered effective and safe treatments for male stress incontinence. No data exist on the utilization of penile prosthesis or male incontinence surgical treatment in Saudi Arabia. Generally, urological prosthetic surgery is performed either in private hospitals or in government hospitals. Our aim was to assess the trend of penile prosthesis and male incontinence device utilization in Saudi Arabia. We utilized sales' data of penile prosthetics, male slings, and AUS from the only two companies selling these devices in Saudi Arabia (AMS ® and Coloplast ® ), from January 2013 to December 2016. There were 2599 penile prosthesis implantation procedures done in the study period, with 67% of them performed in private institutions. There was a progressively increased use of penile prosthetics which nearly doubled from 2013 to 2016. The main type of prosthesis utilized was the semirigid type 70% versus 11% of the 2-piece inflatable and 17% of the 3-piece inflatable device. Only 10 slings and 31 AUS were inserted during the same study period. There is an increased utilization of penile prosthetics in Saudi Arabia. The private sector performs the majority of penile prosthesis procedures, and most of them are of the semirigid type. The governmental sector is more likely to perform inflatable penile prosthesis and male incontinence device procedures. Male incontinence prosthetics' use is very limited in Saudi Arabia.

  6. Pre-deployment Heat Acclimatization Guidelines for Disaster Responders.

    PubMed

    Brearley, Matt B

    2016-02-01

    Minimal preparation time is a feature of responding to sudden onset disasters. While equipment and supplies are prepared for deployment at short notice, less is known of the physical preparation of medical responders. With many disaster-prone areas classified as tropical regions, there is potential for responders to endure a combination of high ambient temperatures and relative humidity during deployment. Heat acclimatization, defined as the physiological and perceptual adaptations to frequent elevations of core body temperature (Tc), is a key strategy to improve tolerance of hot conditions by medical responders. Pre-deployment heat acclimatization guidelines were developed based upon the duration of physical training and the subjective rate of perceived exertion (session RPE). An objective of individual training sessions was the perception of body temperature as warm to hot. The guidelines were implemented for Team Bravo (2nd rotation) of the Australian Medical Assistance Team (AusMAT) deployed to Tacloban, Philippines following Typhoon Haiyan in November 2013. The guidelines were distributed electronically five to seven days prior to deployment and were followed by a consultation. A group training session in hot conditions was undertaken prior to departure. The AusMAT responders to utilize the guidelines were based in cool or temperate climates that required extra layers of clothing, training during warmer parts of the days, or warm indoor conditions to achieve session objectives. Responders reported the guidelines were simple to use, applicable to their varied training regimens, and had improved their confidence to work in the heat despite not completing the entire 14 day period. The pre-deployment heat acclimatization guidelines provided AusMAT responders the ability to quantify their physical training and promoted physiological adaptations to maximize health, safety, and performance during deployment. While maintaining year-round heat acclimatization is

  7. Sediment Resuspension and Transport in Water Distribution ...

    EPA Pesticide Factsheets

    Journal article This journal article addresses the question of how likely tank sediments are to be resuspended and to drain from the tank, potentially impacting human health. AUsing computational fluid dynamics software, and sediment models from the literature, a variety of normal tank operating conditions are assessed to evaluate the likelihood of tank sediment resuspension.

  8. Curriculum Development for Teacher Education in the Southern Philippines: A Simultaneous Process of Professional Learning and Syllabus Enhancement

    ERIC Educational Resources Information Center

    Zeegers, Yvonne

    2012-01-01

    This paper reflects on the process of curriculum development in 21 tertiary education institutions in the Southern Philippines. Assisting capacity-building of the teaching profession is an ongoing need in developing countries, but rarely does it extend to pre-service education. In this study of one aspect of a three year AusAid-funded education…

  9. Draft Genome Assembly of a Wolbachia Endosymbiont of Plutella australiana

    PubMed Central

    Ward, Christopher M.

    2017-01-01

    ABSTRACT Wolbachia spp. are endosymbiotic bacteria that infect around 50% of arthropods and cause a broad range of effects, including manipulating host reproduction. Here, we present the annotated draft genome assembly of Wolbachia strain wAus, which infects Plutella australiana, a cryptic ally of the major Brassica pest Plutella xylostella (diamondback moth). PMID:29074653

  10. Contemporary surgical devices for male stress urinary incontinence: a review of technological advances in current continence surgery.

    PubMed

    Chung, Eric

    2017-07-01

    Male stress urinary incontinence (SUI) remains a debilitating condition that adversely impacts all domains of quality of life and is associated with significant social stigma and health economic burden. The incidence of post-prostatectomy urinary incontinence (PPI) depends on the definition of urinary incontinence and the length of patient follow up. In patients with persistent PPI following failure of conservative measures, surgical treatment is recommended although there is no published guideline on when surgery should be performed, and what the best surgical option is. Male slings (MS) can be divided into adjustable or non-adjustable types, and offers an attractive option for patients who wish to avoid mechanical handling during urinary voiding. Published intermediate data supports good safety and efficacy rate in men with mild to moderate degree of SUI. The AMS 800 artificial urinary sphincter (AUS) remains the standard of treatment for complete continence and has the longest efficacy and safety records. Other AUS-like devices are designed to address current AMS 800 limitations but themselves are fraught with their own issues.

  11. Quantensprung Digitalisierung - Energiewirtschaft im 21. Jahrhundert

    NASA Astrophysics Data System (ADS)

    Thyen, Elmar

    Die Energiewende wird ohne eine umfassende Digitalisierung der Energiewirtschaft Stückwerk bleiben. Die historisch gewachsene, aus hunderten fossilen Großkraftwerken getriebene Energieversorgung hat sich durch den Zubau von mehr als einer Millionen dezentraler Erzeugungseinheiten innerhalb der vergangenen 15 Jahren radikal verändert. Zum Ausgleich von Last und Erzeugung, aber auch zum Aufbau neuer Geschäftsfelder ist die digitale Technik unverzichtbar. Ihre Möglichkeiten scheinen nahezu unbegrenzt, ihre Rolle wird in einer zukünftig nahezu vollständig elektrifizierten Gesellschaft zunehmend wichtiger werden. Neue Anbieter drängen auf den Markt und setzen die traditionelle Energiewirtschaft unter Druck. Energieversorger, die sich dem Wandel nicht stellen, drohen den Anschluss zu verpassen. Noch werden Verbundunternehmen und Stadtwerke von weitreichenden regulatorischen Vorgaben geschützt. Beispiele aus anderen Branchen zeigen aber, dass die Digitalisierung im Stande ist, regulatorische Mechanismen außer Kraft zu setzen. Zugleich verhindert die enge Regulierung und ein falsch verstandener Datenschutzbegriff in Deutschland die Entwicklung neuer Geschäftsmodelle, die energie- und volkswirtschaftlich sinnvoll wären.

  12. Wie verstehen Schülerinnen und Schüler den Begriff der Unendlichkeit?

    NASA Astrophysics Data System (ADS)

    Schimmöller, Tabea

    Wie Hilbert bereits feststellte, wirkt die Idee der Unendlichkeit, wie keine andere, schon seit Zeiten sehr anregend und fruchtbar auf den Verstand und bewegt das Gemüt der Menschen. Der Begriff der Unendlichkeit bedarf aber auch, wie kein anderer, der Aufklärung, denn mit ihm eröffnet sich ein weites Feld, welches nicht nur aus vielen verschiedenen Definitionen besteht, sondern auch aus völlig unterschiedlichen Disziplinen. Physiker suchen immer dringender nach einer "Theorie für Alles" oder einer "Weltformel", Kosmologen beschäftigen sich unter anderem mit der Ewigkeit des Universums, Theologen interessiert eher die Unendlichkeit Gottes, Philosophen diskutieren unter anderem Grenzfragen zwischen Naturwissenschaft und Philosophie und die Mathematiker versuchen den Paradoxien des Unendlichen einen Sinn zu geben. Und so wird ersichtlich, dass nichts abstrakter ist als das Unendliche: Obwohl die Unendlichkeit für die unterschiedlichsten Wissenschaften von großer Bedeutung ist, "[ist] in der Wirklichkeit das Unendliche nirgends zu finden, [egal] was für Erfahrungen und Beobachtungen und welcherlei Wissenschaft wir auch heranziehen".

  13. Web-based thyroid imaging reporting and data system: Malignancy risk of atypia of undetermined significance or follicular lesion of undetermined significance thyroid nodules calculated by a combination of ultrasonography features and biopsy results.

    PubMed

    Choi, Young Jun; Baek, Jung Hwan; Shin, Jung Hee; Shim, Woo Hyun; Kim, Seon-Ok; Lee, Won-Hong; Song, Dong Eun; Kim, Tae Yong; Chung, Ki-Wook; Lee, Jeong Hyun

    2018-05-13

    The purpose of this study was to construct a web-based predictive model using ultrasound characteristics and subcategorized biopsy results for thyroid nodules of atypia of undetermined significance/follicular lesion of undetermined significance (AUS/FLUS) to stratify the risk of malignancy. Data included 672 thyroid nodules from 656 patients from a historical cohort. We analyzed ultrasound images of thyroid nodules and biopsy results according to nuclear atypia and architectural atypia. Multivariate logistic regression analysis was performed to predict whether nodules were diagnosed as malignant or benign. The ultrasound features, including spiculated margin, marked hypoechogenicity, calcifications, biopsy results, and cytologic atypia, showed significant differences between groups. A 13-point risk scoring system was developed, and the area under the curve (AUC) of the receiver operating characteristic (ROC) curve of the development and validation sets were 0.837 and 0.830, respectively (http://www.gap.kr/thyroidnodule_b3.php). We devised a web-based predictive model using the combined information of ultrasound characteristics and biopsy results for AUS/FLUS thyroid nodules to stratify the malignant risk. © 2018 Wiley Periodicals, Inc.

  14. Linker Dependent Bond Rupture Force Measurements in Single-Molecule Junctions

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Frei M.; Hybertsen M.; Aradhya S.V.

    We use a modified conducting atomic force microscope to simultaneously probe the conductance of a single-molecule junction and the force required to rupture the junction formed by alkanes terminated with four different chemical link groups which vary in binding strength and mechanism to the gold electrodes. Molecular junctions with amine, methylsulfide, and diphenylphosphine terminated molecules show clear conductance signatures and rupture at a force that is significantly smaller than the measured 1.4 nN force required to rupture the single-atomic gold contact. In contrast, measurements with a thiol terminated alkane which can bind covalently to the gold electrode show conductance andmore » force features unlike those of the other molecules studied. Specifically, the strong Au-S bond can cause structural rearrangements in the electrodes, which are accompanied by substantial conductance changes. Despite the strong Au-S bond and the evidence for disruption of the Au structure, the experiments show that on average these junctions also rupture at a smaller force than that measured for pristine single-atom gold contacts.« less

  15. Effects of magnitude, depth, and time on cellular seismology forecasts

    NASA Astrophysics Data System (ADS)

    Fisher, Steven Wolf

    This study finds that, in most cases analyzed to date, past seismicity tends to delineate zones where future earthquakes are likely to occur. Network seismicity catalogs for the New Madrid Seismic Zone (NMSZ), Australia (AUS), California (CA), and Alaska (AK) are analyzed using modified versions of the Cellular Seismology (CS) method of Kafka (2002, 2007). The percentage of later occurring earthquakes located near earlier occurring earthquakes typically exceeds the expected percentage for randomly distributed later occurring earthquakes, and the specific percentage is influenced by several variables, including magnitude, depth, time, and tectonic setting. At 33% map area coverage, hit percents are typically 85-95% in the NMSZ, 50-60% in AUS, 75-85% in CA, and 75-85% in AK. Statistical significance testing is performed on trials analyzing the same variables so that the overall regions can be compared, although some tests are inconclusive due to the small number of earthquake sample sizes. These results offer useful insights into understanding the capabilities and limits of CS studies, which can provide guidance for improving the seismicity-based components of seismic hazard assessments.

  16. Geology and Assessment of Undiscovered Oil and Gas Resources of the East Barents Basins Province and the Novaya Zemlya Basins and Admiralty Arch Province, 2008

    USGS Publications Warehouse

    Klett, Timothy R.; Moore, Thomas E.; Gautier, D.L.

    2017-11-15

    The U.S. Geological Survey (USGS) recently assessed the potential for undiscovered petroleum resources of the East Barents Basins Province and the Novaya Zemlya Basins and Admiralty Arch Province as part of its Circum-Arctic Resource Appraisal. These two provinces are situated northeast of Scandinavia and the northwestern Russian Federation, on the Barents Sea Shelf between Novaya Zemlya to the east and the Barents Platform to the west. Three assessment units (AUs) were defined in the East Barents Basins Province for this study: the Kolguyev Terrace AU, the South Barents and Ludlov Saddle AU, and the North Barents Basin AU. A fourth AU, defined as the Novaya Zemlya Basins and Admiralty Arch AU, coincides with the Novaya Zemlya Basins and Admiralty Arch Province. These four AUs, all lying north of the Arctic Circle, were assessed for undiscovered, technically recoverable resources, resulting in total estimated mean volumes of ~7.4 billion barrels of crude oil, 318 trillion cubic feet (TCF) of natural gas, and 1.4 billion barrels of natural-gas liquids.

  17. Chapter 19: Geology and petroleum potential of the east Barents Sea Basins and Admiralty Arch

    USGS Publications Warehouse

    Klett, T.R.; Pitman, Janet K.

    2011-01-01

    The US Geological Survey (USGS) recently assessed the potential for undiscovered oil and gas resources of the East Barents Basins and Novaya Zemlya Basins and Admiralty Arch Provinces as part of the USGS Circum-Arctic Resource Appraisal. These two provinces are located NE of Scandinavia and the northwestern Russian Federation, on the Barents Sea Shelf between Novaya Zemlya to the east and the Barents Platform to the west. Three assessment units (AUs) were defined in the East Barents Basins for this study - Kolguyev Terrace Assessment Unit (AU), South Barents Basin and Ludlov Saddle AU, and North Barents Basin AU. A fourth, defined as Novaya Zemlya Basins and Admiralty Arch AU, is coincident with the Novaya Zemlya basins and Admiralty Arch Province. These AUs, all lying north of the Arctic Circle, were assessed for undiscovered, technically recoverable resources resulting in total estimated mean volumes of approximately 7.4 billion barrels of crude oil, 318 trillion cubic feet of natural gas and 1.4 billion barrels of natural gas liquids. ?? 2011 The Geological Society of London.

  18. Sternbilder und ihre Mythen

    NASA Astrophysics Data System (ADS)

    Fasching, Gerhard

    Die Sternbilder, die seit alters her die Menschen in ihren Bann gezogen haben, und die damit verbundenen Mythen werden in zweifacher Weise vorgestellt. Erstens ist es die Absicht, dem Leser zu helfen, sich am Sternenhimmel zurechtzufinden, und zweitens will es ihm die Vielfalt der Bilder vermitteln, die damit verbunden sind. Am Anfang des Buches stehen die prächtigen Erzählungen aus Ovids Metamorphosen. Dann ist vom Sternenhimmel im Jahreskreis die Rede, um den Leser anzuregen, diesen fast unendlichen Bilderreichtum sich selbst durch eigene Beobachtungen zu erschließen. Ein umfangreicher Abschnitt behandelt die einzelnen Sternbilder und das hierzu überlieferte Wissen. Sternkarten und alte Kupferstiche aus dem Bestand der Österreichischen Nationalbibliothek zeigen, wie man sich in früheren Jahrhunderten den Sternenhimmel vorgestellt hat. Sternsagen und Mythen werden erzählt und auch das ptolemäische und das kopernikanische Weltsystem werden einander gegenübergestellt. Ausführliche Sachverzeichnisse mit über 3000 Suchbegriffen erleichtern den Zugang zu Stern- und Sternbildnamen und zur Mythologie.

  19. Degradable Implantate: Entwicklungsbeispiele

    NASA Astrophysics Data System (ADS)

    Ruffieux, Kurt; Wintermantel, Erich

    Resorbierbare Implantate werden seit mehreren Jahrzehnten in der Implantologie eingesetzt. Bekannt wurden diese Biomaterialien mit dem Aufkommen von sich selbst auflösenden Nahtfäden auf der Basis von synthetisch hergestellten Polylactiden und Polyglycoliden in den 70er Jahren. In einem nächsten Schritt wurden Implantate wie Platten und Schrauben zur Gewebefixation aus den gleichen Biomaterialien hergestellt.

  20. Differences between Children and Adults in the Recognition of Enjoyment Smiles

    ERIC Educational Resources Information Center

    Del Giudice, Marco; Colle, Livia

    2007-01-01

    The authors investigated the differences between 8-year-olds (n = 80) and adults (n = 80) in recognition of felt versus faked enjoyment smiles by using a newly developed picture set that is based on the Facial Action Coding System. The authors tested the effect of different facial action units (AUs) on judgments of smile authenticity. Multiple…

  1. The Performance Improvement of the Lagrangian Particle Dispersion Model (LPDM) Using Graphics Processing Unit (GPU) Computing

    DTIC Science & Technology

    2017-08-01

    access to the GPU for general purpose processing .5 CUDA is designed to work easily with multiple programming languages , including Fortran. CUDA is a...Using Graphics Processing Unit (GPU) Computing by Leelinda P Dawson Approved for public release; distribution unlimited...The Performance Improvement of the Lagrangian Particle Dispersion Model (LPDM) Using Graphics Processing Unit (GPU) Computing by Leelinda

  2. Impulsively-Started Flow about Submarine-Shaped Bodies.

    DTIC Science & Technology

    1981-03-01

    extended by Goldstein and Rosenhead [7] in 1936, G6rtler [8,9] in 1944 and 1948, Schuh [10] in 1953, Watson [11] in 1955, and Wundt [12] in 1955. It...231, pp. 104-116, 1955. 12. Wundt , H., "Wachstum der Laminaren Grenzschicht an schrag angestromten Zylindren bei Anfahrt aus der Ruhe," Ing.- Arch., Vol

  3. Draft Genome Assembly of a Wolbachia Endosymbiont of Plutella australiana.

    PubMed

    Ward, Christopher M; Baxter, Simon W

    2017-10-26

    Wolbachia spp. are endosymbiotic bacteria that infect around 50% of arthropods and cause a broad range of effects, including manipulating host reproduction. Here, we present the annotated draft genome assembly of Wolbachia strain wAus, which infects Plutella australiana , a cryptic ally of the major Brassica pest Plutella xylostella (diamondback moth). Copyright © 2017 Ward and Baxter.

  4. Relative Match Intensities at High Altitude in Highly-Trained Young Soccer Players (ISA3600).

    PubMed

    Buchheit, Martin; Hammond, Kristal; Bourdon, Pitre C; Simpson, Ben M; Garvican-Lewis, Laura A; Schmidt, Walter F; Gore, Christopher J; Aughey, Robert J

    2015-03-01

    To compare relative match intensities of sea-level versus high-altitude native soccer players during a 2-week camp at 3600 m, data from 7 sea-level (Australian U17 National team, AUS) and 6 high-altitude (a Bolivian U18 team, BOL) native soccer players were analysed. Two matches were played at sea-level and three at 3600 m on Days 1, 6 and 13. The Yo-Yo Intermittent recovery test (vYo-YoIR1) was performed at sea-level, and on Days 3 and 10. Match activity profiles were measured via 10-Hz GPS. Distance covered >14.4 km.h(-1) (D>14.4 km·h(-1)) and >80% of vYo-YoIR1 (D>80%vYo-YoIR1) were examined. Upon arrival at altitude, there was a greater decrement in vYo-YoIR1 (Cohen's d +1.0, 90%CL ± 0.8) and D>14.4 km·h(-1) (+0.5 ± 0.8) in AUS. D>14.4 km.h(-1) was similarly reduced relative to vYo-YoIR1 in both groups, so that D>80%vYo-YoIR1 remained similarly unchanged (-0.1 ± 0.8). Throughout the altitude sojourn, vYo-YoIR1 and D>14.4 km·h(-1) increased in parallel in AUS, so that D>80%vYo-YoIR1 remained stable in AUS (+6.0%/match, 90%CL ± 6.7); conversely D>80%vYo-YoIR1 decreased largely in BOL (-12.2%/match ± 6.2). In sea-level natives competing at high-altitude, changes in match running performance likely follow those in high-intensity running performance. Bolivian data confirm that increases in 'fitness' do not necessarily translate into greater match running performance, but rather in reduced relative exercise intensity. Key pointsWhen playing at high-altitude, players may alter their activities during matches in relation to their transient maximal physical capacities, possibly to maintain a 'tolerable' relative exercise intensity.While there is no doubt that running performance per se in not the main determinant of match outcomes (Carling, 2013), fitness levels influence relative match intensity (Buchheit et al., 2012, Mendez-Villanueva et al., 2013), which in-turn may impact on decision making and skill performance (Rampinini et al., 2008).In the context of

  5. Comparison of the prevalence and mortality risk of CKD in Australia using the CKD Epidemiology Collaboration (CKD-EPI) and Modification of Diet in Renal Disease (MDRD) Study GFR estimating equations: the AusDiab (Australian Diabetes, Obesity and Lifestyle) Study.

    PubMed

    White, Sarah L; Polkinghorne, Kevan R; Atkins, Robert C; Chadban, Steven J

    2010-04-01

    The Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) is more accurate than the Modification of Diet in Renal Disease (MDRD) Study equation. We applied both equations in a cohort representative of the Australian adult population. Population-based cohort study. 11,247 randomly selected noninstitutionalized Australians aged >or= 25 years who attended a physical examination during the baseline AusDiab (Australian Diabetes, Obesity and Lifestyle) Study survey. Glomerular filtration rate (GFR) was estimated using the MDRD Study and CKD-EPI equations. Kidney damage was defined as urine albumin-creatinine ratio >or= 2.5 mg/mmol in men and >or= 3.5 mg/mmol in women or urine protein-creatinine ratio >or= 0.20 mg/mg. Chronic kidney disease (CKD) was defined as estimated GFR (eGFR) >or= 60 mL/min/1.73 m(2) or kidney damage. Participants were classified into 3 mutually exclusive subgroups: CKD according to both equations; CKD according to the MDRD Study equation, but no CKD according to the CKD-EPI equation; and no CKD according to both equations. All-cause mortality was examined in subgroups with and without CKD. Serum creatinine and urinary albumin, protein, and creatinine measured on a random spot morning urine sample. 266 participants identified as having CKD according to the MDRD Study equation were reclassified to no CKD according to the CKD-EPI equation (estimated prevalence, 1.9%; 95% CI, 1.4-2.6). All had an eGFR >or= 45 mL/min/1.73 m(2) using the MDRD Study equation. Reclassified individuals were predominantly women with a favorable cardiovascular risk profile. The proportion of reclassified individuals with a Framingham-predicted 10-year cardiovascular risk >or= 30% was 7.2% compared with 7.9% of the group with no CKD according to both equations and 45.3% of individuals retained in stage 3a using both equations. There was no evidence of increased all-cause mortality in the reclassified group (age- and sex-adjusted hazard ratio vs no CKD, 1.01; 95% CI, 0

  6. Zweiwegintegration durch zweisprachige Bildung? Ergebnisse aus der Staatlichen Europa-Schule Berlin

    NASA Astrophysics Data System (ADS)

    Meier, Gabriela

    2012-06-01

    While there is no simple recipe of how to respond to the multitude of languages present in many European schools, this article presents a promising alternative to monolingual education. The focus is on Staatliche Europa-Schule Berlin (SESB), a two-way immersion (TWI) model that unites children whose mother tongue is German with children whose mother tongue is another locally spoken language in one class and teaches them together in two languages. Thus in this model, offered by 17 primary schools and 13 secondary schools in Berlin, pupils learn in two languages from and with each other. Based on a largely quantitative, quasi-experimental study with 603 students, evidence is provided that there are a number of peace-linguistic benefits that can promote two-way social integration, besides fostering personal and societal multilingualism. This suggests that TWI education as practised in Berlin could serve as an educational model for other multilingual parts of Europe.

  7. Aus Wirtschaft und Betrieb. Biomasse: Gewinnung und Verarbeitung mit Profilschal-maschinen

    Treesearch

    P. Koch

    1977-01-01

    1963 wurden in den Südstaaten der USA nur 30% der oberund unterirdischen Biomasse der geernteten sog. Southern pines für Schnittholz und Zellstoff verwertet bzw. als getrockneies, gehobletes und abgelängtes Schnittholz oder als Kraftpapier verkauft. Keine der zusammen mit den Kiefern vorkommenden Laubholzarten wurde bisher in nennenswertem Umfan verwertet. Auch heute...

  8. Veterans Affairs: Sustained Management Attention Needed to Address Numerous IT Challenges

    DTIC Science & Technology

    2016-06-22

    territories and the Philippines. The department’s three major components—the Veterans Benefits Administration ( VBA ), the Veterans Health Administration...VHA), and the National Cemetery Administration (NCA)—are primarily responsible for carrying out its mission. More specifically, VBA provides a...used for the determination of benefits, benefits claims processing, patient admission to hospitals and clinics, and access to health records, among

  9. Embankment Criteria and Performance Report. Cheyenne River Basin, South Dakota, Red Dale Gulch Area, Cedar Canyon Dam, Rapid City, South Dakota.

    DTIC Science & Technology

    1983-01-01

    to 14.0 percent in the reservoir area. Liquid limits and plastic indexes ranged from 27 to 30 and 7 to 20, respectively, in the spillway area and 29...1 0 t~ EEA e~ c Ea tt , bedoc All elvthoe scton.. refe Itofeet aofe 9𔃾 -v 12 2*, De toeld Ivsit atod aus rae shon oia o adthe field investmation shwn

  10. Cyber Warfare: An Evolution in Warfare not Just War Theory

    DTIC Science & Technology

    2013-04-05

    cyber warfare is greatly debated. While some argue that Just War Theory is irrelevant to cyber warfare , a careful analysis demonstrates that it is a...useful tool for considering the morality of cyber warfare . This paper examines the application of Just War Theory to cyber warfare and contends that...Just War Theory is a useful tool for considering the morality of cyber warfare .

  11. The Heringen Collections of the US Geological Survey Library, Reston, Virginia

    DTIC Science & Technology

    2008-11-01

    were deep (about 750 meters) and 3 Unveröffentliche Archivquellen aus den Beständen des Werra-Kalibergbau...Intelligence Objectives Agency ( JOIA ), were the ones who actually discovered and opened the Wintershall mine. It was given direct...11 Unlike many other Army names and team designations , this is not an acronym. It is the Greek word for a ‘grove of trees

  12. Die nuklearen Anlagen von Hanford (1943-1987) Eine Fallstudie über die Schnittstellen von Physik, Biologie und die US-amerikanische Gesellschaft zur Zeit des Kalten Krieges

    NASA Astrophysics Data System (ADS)

    Macuglia, Daniele

    Die Geschichte des Kalten Krieges eröffnet viele Möglichkeiten, sich näher mit den Schnittstellen von Physik und Biologie während des 20. Jahrhunderts zu befassen. Nicht nur das Unglück in Tschernobyl aus dem Jahr 1986, auch das Beispiel der nuklearen Anlagen in Hanford in den Vereinigten Staaten zeigt die biologischen Folgen von nuklearer Physik.

  13. Forschungspolitik USA weisen zunehmend ausländische Physikstudenten ab

    NASA Astrophysics Data System (ADS)

    Bührke, Thomas

    2003-11-01

    In keinem anderen Land der Erde ist der Anteil ausländischer Studenten im Fach Physik größer als in den USA. Nach den Terroranschlägen vom 11. September werden jedoch zunehmend ausländische Studenten, insbesondere aus China und dem mittleren Osten, abgewiesen - zum Leidwesen der Studenten und der Universitäten.http://www.aip.org/statistics

  14. Crystals: The Love Child Born from Art and Science

    ERIC Educational Resources Information Center

    Leong, Noby

    2014-01-01

    Noby Leong is a PhD student in Chemistry at University of Adelaide working on the design of new drug delivery systems for medical applications. He's also a science communicator, part of the volunteer blogging community at RiAus and curator of his own blog "The Other Side of Science." In this article Noby shares the highs and lows that…

  15. The fourth crystallographic closest packing unveiled in the gold nanocluster crystal

    NASA Astrophysics Data System (ADS)

    Gan, Zibao; Chen, Jishi; Wang, Juan; Wang, Chengming; Li, Man-Bo; Yao, Chuanhao; Zhuang, Shengli; Xu, An; Li, Lingling; Wu, Zhikun

    2017-03-01

    Metal nanoclusters have recently attracted extensive interest not only for fundamental scientific research, but also for practical applications. For fundamental scientific research, it is of major importance to explore the internal structure and crystallographic arrangement. Herein, we synthesize a gold nanocluster whose composition is determined to be Au60S6(SCH2Ph)36 by using electrospray ionization mass spectrometry and single crystal X-ray crystallography (SCXC). SCXC also reveals that Au60S6(SCH2Ph)36 consists of a fcc-like Au20 kernel protected by a pair of giant Au20S3(SCH2Ph)18 staple motifs, which contain 6 tetrahedral-coordinate μ4-S atoms not previously reported in the Au-S interface. Importantly, the fourth crystallographic closest-packed pattern, termed 6H left-handed helical (6HLH) arrangement, which results in the distinct loss of solid photoluminescence of amorphous Au60S6(SCH2Ph)36, is found in the crystals of Au60S6(SCH2Ph)36. The solvent-polarity-dependent solution photoluminescence is also demonstrated. Overall, this work provides important insights about the structure, Au-S bonding and solid photoluminescence of gold nanoclusters.

  16. Thermally Stable Gold Nanoparticles with a Crosslinked Diblock Copolymer Shell

    NASA Astrophysics Data System (ADS)

    Jang, Se Gyu; Khan, Anzar; Hawker, Craig J.; Kramer, Edward J.

    2010-03-01

    The use of polymer-coated Au nanoparticles prepared using oligomeric- or polymeric-ligands tethered by Au-S bonds for incorporation into block copolymer templates under thermal processing has been limited due to dissociation of the Au-S bond at T > 100^oC where compromises their colloidal stability. We report a simple route to prepare sub-5nm gold nanoparticles with a thermally stable polymeric shell. An end-functional thiol ligand consisting of poly(styrene-b-1,2&3,4-isoprene-SH) is synthesized by anionic polymerization. After a standard thiol ligand synthesis of Au nanoparticles, the inner PI block is cross-linked through reaction with 1,1,3,3-tetramethyldisiloxane. Gold nanoparticles with the cross-linked shell are stable in organic solvents at 160^oC as well as in block copolymer films of PS-b-P2VP annealed in vacuum at 170^oC for several days. These nanoparticles can be designed to strongly segregate to the PS-P2VP interface resulting in very large Au nanoparticle volume fractions φp without macrophase separation as well as transitions between lamellar and bicontinuous morphologies as φp increases.

  17. Realistic facial expression of virtual human based on color, sweat, and tears effects.

    PubMed

    Alkawaz, Mohammed Hazim; Basori, Ahmad Hoirul; Mohamad, Dzulkifli; Mohamed, Farhan

    2014-01-01

    Generating extreme appearances such as scared awaiting sweating while happy fit for tears (cry) and blushing (anger and happiness) is the key issue in achieving the high quality facial animation. The effects of sweat, tears, and colors are integrated into a single animation model to create realistic facial expressions of 3D avatar. The physical properties of muscles, emotions, or the fluid properties with sweating and tears initiators are incorporated. The action units (AUs) of facial action coding system are merged with autonomous AUs to create expressions including sadness, anger with blushing, happiness with blushing, and fear. Fluid effects such as sweat and tears are simulated using the particle system and smoothed-particle hydrodynamics (SPH) methods which are combined with facial animation technique to produce complex facial expressions. The effects of oxygenation of the facial skin color appearance are measured using the pulse oximeter system and the 3D skin analyzer. The result shows that virtual human facial expression is enhanced by mimicking actual sweating and tears simulations for all extreme expressions. The proposed method has contribution towards the development of facial animation industry and game as well as computer graphics.

  18. Realistic Facial Expression of Virtual Human Based on Color, Sweat, and Tears Effects

    PubMed Central

    Alkawaz, Mohammed Hazim; Basori, Ahmad Hoirul; Mohamad, Dzulkifli; Mohamed, Farhan

    2014-01-01

    Generating extreme appearances such as scared awaiting sweating while happy fit for tears (cry) and blushing (anger and happiness) is the key issue in achieving the high quality facial animation. The effects of sweat, tears, and colors are integrated into a single animation model to create realistic facial expressions of 3D avatar. The physical properties of muscles, emotions, or the fluid properties with sweating and tears initiators are incorporated. The action units (AUs) of facial action coding system are merged with autonomous AUs to create expressions including sadness, anger with blushing, happiness with blushing, and fear. Fluid effects such as sweat and tears are simulated using the particle system and smoothed-particle hydrodynamics (SPH) methods which are combined with facial animation technique to produce complex facial expressions. The effects of oxygenation of the facial skin color appearance are measured using the pulse oximeter system and the 3D skin analyzer. The result shows that virtual human facial expression is enhanced by mimicking actual sweating and tears simulations for all extreme expressions. The proposed method has contribution towards the development of facial animation industry and game as well as computer graphics. PMID:25136663

  19. Sustainability of health information systems in developing countries: the case of Fiji.

    PubMed

    Soar, Jeffrey; Gow, Jeff; Caniogo, Vili

    This paper examines the future sustainability of the Fijian Ministry of Health's (MoH) information and communication technology (ITC) system for patient management (PATIS). PATIS was developed with AusAID funding and, as the owner of the system, AusAID has no commercial competence or interest in further development of the system. Thus, the question that arises is: should Fiji adopt a commercially available patient administration system or retain the existing PATIS? In-depth consultations with senior executives and line managers of units that were major users of PATIS were undertaken. Semi-structured interviews and focus group discussion approaches were utilised. The consensus or majority views of the users were that the existing PATIS performed more than adequately. The future sustainability of the system is threatened by the lack of investment in resources (e.g. hardware maintenance and human resources) required to keep the system operating at its optimum. It was found that PATIS provides Fiji with a satisfactory patient administration system. The identified problems with the system are not related to the application per se but rather to an under-investment in resources for its utilisation.

  20. PERFORMANCE IMPROVEMENT OF CREEP-RESISTANT FERRITIC STEEL WELDMENTS THROUGH THERMO-MECHANICAL TREATMENT AND ALLOY DESIGN

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Yamamoto, Yukinori; Babu, Prof. Sudarsanam Suresh; Shassere, Benjamin

    Two different approaches have been proposed for improvement of cross-weld creep properties of the high temperature ferrous structural materials for fossil-fired energy applications. The traditional creep strength-enhanced ferritic (CSEF) steel weldments suffer from Type IV failures which occur at the fine-grained heat affected zone (FGHAZ). In order to minimize the premature failure at FGHAZ in the existing CSEF steels, such as modified 9Cr-1Mo ferritic-martensitic steels (Grade 91), a thermo-mechanical treatment consisting of aus-forging/rolling and subsequent aus-aging is proposed which promotes the formation of stable MX carbonitrides prior to martensitic transformation. Such MX remains undissolved during welding process, even in FGHAZ,more » which successfully improves the cross-weld creep properties. Another approach is to develop a new fully ferrtic, creep-resistant FeCrAl alloy which is essentially free from Type IV failure issues. Fe-30Cr-3Al base alloys with minor alloying additions were developed which achieved a combination of good oxidation/corrosion resistance and improved tensile and creep performance comparable or superior to Grade 92 steel.« less

  1. Physikgeschichte Das Rätsel bleibt

    NASA Astrophysics Data System (ADS)

    Hoffmann, Dieter

    2002-05-01

    Die jüngst erfolgte Veröffentlichung von Dokumenten aus dem Privatarchiv der Familie Bohr [1] über den geheimnisumwitterten Besuch von Werner Heisenberg in Kopenhagen im September 1941 hat in den deutschen Medien große Resonanz gefunden [2]. Tatsächlich verraten uns die jetzt veröffentlichten Dokumente sehr viel mehr über die Zeit ihres Entstehens als über den Besuch selbst.

  2. Challenges to Autonomous Navigation in Complex Urban Terrain

    DTIC Science & Technology

    2012-03-23

    a, Robert E. Karlsen a, Chip DiBerardino b, Edward Mottern b, & N. Joseph Kott, III a aU.S. Army Tank- Automotive Research, Development & Engineering...threat, but this becomes especially challenging when dealing with humans or animals that may change trajectory, suddenly and without warning. The...people and animals . In urban environments, the number of potential vehicle to civilian encounters increases exponentially as the urban population

  3. The U.S. Rebalance and Europe: Convergent Strategies Open Doors to Improved Cooperation

    DTIC Science & Technology

    2014-06-01

    reportedly has sought to sell Eurofighter combat aircraft to India, the Republic of Korea, and Malaysia . And according to press reports, Berlin has discussed...strategic partnerships” or “strategic dialogues” with Japan, Indonesia, the Republic of Korea, Singapore, Malaysia , Aus- tralia, and most recently...Vietnam. Japan and Singapore are France’s largest trading partners in the region after China. Malaysia , the Republic of Korea, Australia, and

  4. THE FASTEST OODA LOOP: THE IMPLICATIONS OF BIG DATA FOR AIR POWER

    DTIC Science & Technology

    2016-06-01

    AIR COMMAND AND STAFF COLLEGE AIR UNIVERSITY THE FASTEST OODA LOOP : THE IMPLICATIONS OF BIG DATA FOR AIR POWER by Aaron J. Dove, Maj, USAF A...Use of Big Data Thus Far..............................................................16 The Big Data Boost To The OODA Loop ...processed with enough accuracy that it required minimal to no human or man-in-the loop vetting of the information through Command and Control (C2

  5. Compendium of Licensable Patents Issued to the Edgewood Research, Development and Engineering Center and Previous Activities.

    DTIC Science & Technology

    1997-01-01

    of Chemical Decontamination Inventors Philip W. Bartram, Noel C. Dibona , James H. Buchanan and Dennis K. Rohrbaugh Abstract An absorption process of...Decontamination Inventors Philip W. Bartram, Noel C. Dibona , James H. Buchanan and Dennis K. Rohrbaugh Abstract An improved method of decontaminating a...Using a Macro-reticular Strong Acid Resin Inventors Philip W. Bartram, Noel C. Dibona , James H. Buchanan, and Dennis K. Rohrbaugh Abstract A

  6. Coordination in Distributed Intelligent Systems Applications

    DTIC Science & Technology

    2009-12-13

    working in the area of Distributed Artificial Intelligence (DAI) unanimously endorses the idea that coordination - a fundamental paradigm - represents a...using the distributed artificial intelligence paradigm. Section 4 discusses the healthcare applications. On the other hand, Section 5 describes...coordination mechanisms should be used is in the control of swarms of UA Vs (unmanned aerial vehicles). The UAVs are considered in this case as highly mobile

  7. Intrathoracic Pressure Regulator for Blood Loss

    DTIC Science & Technology

    2016-05-24

    AFRL-SA-WP-SR-2016-0006 Intrathoracic Pressure Regulator for Blood Loss Richard D. Branson, RRT University of Cincinnati...Special Report 3. DATES COVERED (From – To) September 2011 – October 2013 4. TITLE AND SUBTITLE Intrathoracic Pressure Regulator for Blood Loss 5a...used to treat hypovolemia and cardiac arrest. Preclinical trials demonstrate that ITPR increases venous return and thereby restores blood pressure and

  8. Intrathoracic Pressure Regulator for Blood Loss

    DTIC Science & Technology

    2016-05-01

    AFRL-SA-WP-SR-2016-0006 Intrathoracic Pressure Regulator for Blood Loss Richard D. Branson, RRT University of Cincinnati...Special Report 3. DATES COVERED (From – To) September 2011 – October 2013 4. TITLE AND SUBTITLE Intrathoracic Pressure Regulator for Blood Loss 5a...used to treat hypovolemia and cardiac arrest. Preclinical trials demonstrate that ITPR increases venous return and thereby restores blood pressure and

  9. Response of the auroral electrojet indices to abrupt southward IMF turnings

    NASA Astrophysics Data System (ADS)

    Gjerloev, J. W.; Hoffman, R. A.; Ohtani, S.; Weygand, J.; Barnes, R.

    2010-05-01

    We present results from a study of the behavior of the auroral electrojet indices following abrupt southward turnings of the IMF Bz. The auroral electrojet indices are calculated from observations made by more than 100 ground based stations provided by the SuperMAG collaborators. Based on three simple criteria we selected 73 events. In each event the interval of analysis started at the time of the IMF Bz southward turning and ended 45 minutes later or at the onset of any abrupt energy unloading event in the magnetosphere, regardless of size. We refer to this period as the "pre-unloading phase". To isolate the dependence of the auroral electrojets on the solar induced ionospheric conductivity during this phase we separated the standard AU/AL indices into two new sets of indices defined by the upper and lower envelope of the north-south component for all sunlit stations (AUs/ALs) and for all stations in darkness (AUd/ALd). Based on events and statistical analyses we can conclude that following a southward turning of the IMF Bz the AUd/ALd indices show no measurable response while the AUs/ALs indices clearly intensify. The intensifications of AUs/ALs are dependent on the intensity of the solar wind driver (as measured by IMF Bz or the Akasofu ɛ parameter). The lack of AUd/ALd response does not depend on the intensity of any subsequent substorm. We find that during these isolated events the ionospheric current system is primarily confined to the sunlit ionosphere. This truncated version of the classical global DP-2 current system suggests that auroral electrojet continuity is not maintained across the terminator. Because of its conductivity dependence on the solar zenith angle, this truncated global current pattern is expected to be highly dependent on UT and season and thus can be asymmetric between hemispheres. Thus we argue that the global two-cell DP-2 current system is not a consequence only of a southward turning of the IMF but requires also the reduction of the

  10. Application of the Multi-Doorway Continuum Shell Model to the Magnetic Dipole Strength Distribution in 58Ni

    NASA Astrophysics Data System (ADS)

    Spangenberger, H.; Beck, F.; Richter, A.

    The usual continuum shell model is extended so as to include a statistical treatment of multi-doorway processes. The total configuration space of the nuclear reaction problem is subdivided into the primary doorway states which are coupled by the initial excitation to the nuclear ground state and the secondary doorway states which represent the complicated nature of multi-step reactions. The latter are evaluated within the exciton model which gives the coupling widths between the various finestructure subspaces. This coupling is determined by a statistical factor related to the exciton model and a dynamical factor given by the interaction matrix elements of the interacting excitons. The whole structure defines the multi-doorway continuum shell model. In this work it is applied to the highly fragmented magnetic dipole strength in 58Ni observed in high resolution electron scattering.Translated AbstractAnwendung des Multi-Doorway-Kontinuum-Schalenmodells auf die Verteilung der magnetischen Dipolstärke von 58NiDas Kontinuum-Schalenmodell wurde so erweitert, daß auch statistische Multi-Doorway-Prozesse berücksichtigt werden können. Hierzu wird der Konfigurationsraum unterteilt in den Raum der primären Doorway-Zustände, die direkt aus dem Grundzustand angeregt werden, und den der sekundären Doorway-Zustände, die die komplizierte Struktur der Multi-Step-Reaktionen repräsentieren. Während die primären Doorway-Zustände inclusive ihrer Anregungen mittels üblicher Schalenmodellmethoden beschrieben werden können, werden die sekundären Doorway-Zustände sowie ihre verschiedenen Kopplungen im Rahmen des Exciton-Modells behandelt. Diese Kopplungen sind durch einen aus dem Exciton-Modell resultierenden Faktor sowie durch einen dynamischen Faktor bestimmt, der sich aus dem Matrixelement der wechselwirkenden Excitonen berechnet. Die Struktur der Kopplungen definiert das Multi-Doorway-Kontinuum-Schalenmodell, das hier auf die Beschreibung der stark fragmentierten

  11. Is different better? Models of teaching and their influence on the net financial outcome for general practice teaching posts

    PubMed Central

    2011-01-01

    Background In Australia, training for general practice (GP) occurs within private practices and their involvement in teaching can have significant financial costs. At the same time there are growing demands for clinical places for all disciplines and for GP there is concern that there are insufficient teaching practices to meet the demand at the medical student, prevocational and vocational training levels. One option to address this may be to change how teaching occurs in the practice. A question that arises in posing such an option is whether different models of teaching change the costs for a teaching practice. The aim of this study is to determine the net financial outcome of teaching models in private GP. Methods Modelling the financial implications for a range of teaching options using a costing framework developed from a survey of teaching practices in South Australia. Each option was compared with the traditional model of teaching where one GP supervisor is singularly responsible for one learner. The main outcome measure was net financial outcome per week. Decisions on the model cost parameters were made by the study's Steering Group which comprised of experienced GP supervisors. Four teaching models are presented. Model 1 investigates the gains from teaching multiple same level learners, Models 2 and 3, the benefits of vertically integrated teaching using different permutations, and Model 4 the concept of a GP teacher who undertakes all the teaching. Results There was a significant increase in net benefits of Aus$547 per week (95% confidence intervals $459, $668) to the practice when a GP taught two same level learners (Model 1) and when a senior registrar participated in teaching a prevocational doctor (Model 3, Aus$263, 95% confidence intervals $80, $570). For Model 2, a practice could significantly reduce the loss if a registrar was involved in vertically integrated teaching which included the training of a medical student (Aus$551, 95% confidence

  12. Is different better?: models of teaching and their influence on the net financial outcome for general practice teaching posts.

    PubMed

    Laurence, Caroline O; Black, Linda E; Cheah, Carolyn; Karnon, Jonathan

    2011-07-12

    In Australia, training for general practice (GP) occurs within private practices and their involvement in teaching can have significant financial costs. At the same time there are growing demands for clinical places for all disciplines and for GP there is concern that there are insufficient teaching practices to meet the demand at the medical student, prevocational and vocational training levels. One option to address this may be to change how teaching occurs in the practice. A question that arises in posing such an option is whether different models of teaching change the costs for a teaching practice. The aim of this study is to determine the net financial outcome of teaching models in private GP. Modelling the financial implications for a range of teaching options using a costing framework developed from a survey of teaching practices in South Australia. Each option was compared with the traditional model of teaching where one GP supervisor is singularly responsible for one learner. The main outcome measure was net financial outcome per week. Decisions on the model cost parameters were made by the study's Steering Group which comprised of experienced GP supervisors. Four teaching models are presented. Model 1 investigates the gains from teaching multiple same level learners, Models 2 and 3, the benefits of vertically integrated teaching using different permutations, and Model 4 the concept of a GP teacher who undertakes all the teaching. There was a significant increase in net benefits of Aus$547 per week (95% confidence intervals $459, $668) to the practice when a GP taught two same level learners (Model 1) and when a senior registrar participated in teaching a prevocational doctor (Model 3, Aus$263, 95% confidence intervals $80, $570). For Model 2, a practice could significantly reduce the loss if a registrar was involved in vertically integrated teaching which included the training of a medical student (Aus$551, 95% confidence intervals $419, $718). The GP

  13. Assessment of undiscovered conventional oil and gas resources, onshore Claiborne Group, United Statespart of the northern Gulf of Mexico Basin

    USGS Publications Warehouse

    Hackley, P.C.; Ewing, T.E.

    2010-01-01

    The middle Eocene Claiborne Group was assessed for undiscovered conventional hydrocarbon resources using established U.S. Geological Survey assessment methodology. This work was conducted as part of a 2007 assessment of Paleogene-Neogene strata of the northern Gulf of Mexico Basin, including the United States onshore and state waters (Dubiel et al., 2007). The assessed area is within the Upper Jurassic-CretaceousTertiary composite total petroleum system, which was defined for the assessment. Source rocks for Claiborne oil accumulations are interpreted to be organic-rich, downdip, shaley facies of the Wilcox Group and the Sparta Sand of the Claiborne Group; gas accumulations may have originated from multiple sources, including the Jurassic Smackover Formation and the Haynesville and Bossier shales, the Cretaceous Eagle Ford and Pearsall (?) formations, and the Paleogene Wilcox Group and Sparta Sand. Hydrocarbon generation in the basin started prior to deposition of Claiborne sediments and is currently ongoing. Primary reservoir sandstones in the Claiborne Group include, from oldest to youngest, the Queen City Sand, Cook Mountain Formation, Sparta Sand, Yegua Formation, and the laterally equivalent Cockfield Formation. A geologic model, supported by spatial analysis of petroleum geology data, including discovered reservoir depths, thicknesses, temperatures, porosities, permeabilities, and pressures, was used to divide the Claiborne Group into seven assessment units (AUs) with three distinctive structural and depositional settings. The three structural and depositional settings are (1) stable shelf, (2) expanded fault zone, and (3) slope and basin floor; the seven AUs are (1) lower Claiborne stable-shelf gas and oil, (2) lower Claiborne expanded fault-zone gas, (3) lower Claiborne slope and basin-floor gas, (4) lower Claiborne Cane River, (5) upper Claiborne stable-shelf gas and oil, (6) upper Claiborne expanded fault-zone gas, and (7) upper Claiborne slope and basin

  14. Utility of Shared Versus Isolated Work Setting for Dynamic Team Decision-Making

    DTIC Science & Technology

    1987-12-01

    model of group tasks, which distinguishus amonu eight task types based upon the dimensions of cooperation-coppetition an( conceptual -behavioral, is a...useful framwork for understanding group per- formance. IcGrath’s (1984) viewpoint, that (a) there are many types of existing and concocted groups which... conceptualization , like some other approaches (e.g., Social Impact Theory; for a current sum, ary, see Jackson, 1987), does not specify the actual processes

  15. Robust Network Architecture Against Random Threats in WMD Environments: Theoretical Limits and Recovery Strategies

    DTIC Science & Technology

    2017-08-01

    green energy sources such as the Photovoltaic (PV) and Wind Turbine (WT). All those devices are equipped with Intelligent Electronic Devices (IEDs...equivalent to the connectivity in the wired networks, which is used as a prerequisite to evaluate the functionality of the network applications. Moreover, a...using different access technologies, including wired and wireless, on licensed and unlicensed frequency bands. The objectives can be two-fold in general

  16. JPRS Report East Asia Southeast Asia.

    DTIC Science & Technology

    1987-06-01

    Manun, Gives Political Overview (Phra Udonkhanaphithak Kittiwutto Interview; KHAO PHISET, 18-24 Feb 87) • • 54 Publisher Views Desirability of End to...at Chong Bok, Vietnamese forces have penetrated about 2 km into Thailand and are trying to alter the terrain in preparation for repelling Thai...Australia, Mr Cox said Australia has relaxed its tariffs on textiles , garments, and footwear from Thailand. He added that Aus- tralia would like to

  17. Wirkstoffe, Medikamente und Mathematische Bildverarbeitung

    NASA Astrophysics Data System (ADS)

    Bauer, Günter J.; Lorenz, Dirk A.; Maaß, Peter; Preckel, Hartwig; Trede, Dennis

    Die Entwicklung neuer Medikamente ist langwierig und teuer. Der erste Schritt ist hierbei die Suche nach neuen Wirkstoffkandidaten, die für die Behandlung bislang schwer therapierbarer Krankheiten geeignet sind. Hierfür stehen der Pharma- und Biotechnologieindustrie riesige Substanzbibliotheken zur Verfügung. In diesen Bibliotheken werden die unterschiedlichsten Substanzen gesammelt, die entweder synthetisch hergestellt oder aus Pilzen, Bakterienkulturen und anderen Lebewesen gewonnen werden können.

  18. USMC Installations Command Information Environment: Opportunities and Analysis for Integration of First Responder Communications

    DTIC Science & Technology

    2014-09-01

    becoming a more and more prevalent technology in the business world today. According to Syal and Goswami (2012), cloud technology is seen as a...use of computing resources, applications, and personal files without reliance on a single computer or system ( Syal & Goswami, 2012). By operating in...cloud services largely being web-based, which can be retrieved through most systems with access to the Internet ( Syal & Goswami, 2012). The end user can

  19. History of the Joint Chiefs of Staff: The Joint Chiefs of Staff and the First Indochina War, 1947-1954

    DTIC Science & Technology

    2004-10-01

    ad hoc committee representing the three powers, plus Australia, and New Zealand , who since September 1951 had been allied with the United States in...On 6 October, the military representatives of the United Kingdom, France, Aus- tralia, and New Zealand met with the United States delegation, headed...same interests, attitudes, and fears described by Admiral Davis in Feb- ruary. Australia and New Zealand adhered in general to the United Kingdom

  20. Voluntary Aviation Safety Information-Sharing Process: Preliminary Audit of Distributed FOQA and ASAP Archives Against Industry Statement of Requirements

    DTIC Science & Technology

    2007-04-01

    the underlying parameters are available. Standard data format. Battelle, SAGEM Avionics, and Austin Digital, Inc. agreed upon a standard data format...data was initiated at four airlines by SAGEM Avionics beginning January 1, 2006. Transfer was initiated at one airline by Aus- tin Digital, Inc...internal issues have been resolved. As of April 0, 2006, more than 124,000 flights have been transferred to local archive servers by SAGEM and over

  1. Joint Force Quarterly. Number 28, Spring/Summer 2001

    DTIC Science & Technology

    2001-09-01

    gium, Colombia , Ethiopia, France, Greece, Luxembourg, The Netherlands, Philippines, and Thailand fielded battalion-sized units which were attached to U.S...Army divisions while Turkey deployed an infantry brigade. Naval Forces. Eight allied nations—Aus- tralia, Canada, Colombia , Denmark, The Netherlands...U.S. Air Force, for flavoring his reforms with too much machismo . The authors emphasized that one in five Air Force people would never see a flight

  2. Assessment of undiscovered continuous oil and gas resources in the Monterey Formation, San Joaquin Basin Province, California, 2015

    USGS Publications Warehouse

    Tennyson, Marilyn E.; Charpentier, Ronald R.; Klett, Timothy R.; Brownfield, Michael E.; Pitman, Janet K.; Gaswirth, Stephanie B.; Hawkins, Sarah J.; Lillis, Paul G.; Marra, Kristen R.; Mercier, Tracey J.; Leathers, Heidi M.; Schenk, Christopher J.; Whidden, Katherine J.

    2015-10-06

    Using a geology-based assessment methodology, the U.S. Geological Survey assessed mean volumes of 21 million barrels of oil (MMBO), 27 billion cubic feet of gas, and 1 million barrels of natural gas liquids in two assessment units (AUs) that may contain continuous oil resources. Mean volumes of oil for the individual assessment units are 14 MMBO in the Monterey Buttonwillow AU and 7 MMBO in the Monterey Maricopa AU.

  3. Topical Hazard Evaluation Program of Candidate Insect Repellent AI3-20816-a, US Department of Agriculture Proprietary Compound, September 1978-November 1980.

    DTIC Science & Technology

    1981-02-11

    GROUND, MD 21010 TOPICAL HAZARD EVALUATION PROGRAM OF CANDIDATE INSECT REPELLENT AI 3- 20816 -aUS DEPARTMENT OF AGRICULTURE PROPRIETARY COMPOUND STUDY NO...irritation A13- 20816 -a Photochemical irritation Topical Hazard Evaluation Sensitization Candidate repellent ALD Skin irritation 20. ABSTRACT (Continue an...reverse e e if necessary and identify by block number) A hazard evaluation of candidate insect repellent A13- 20816 -a was performed by means of laboratory

  4. Practice Report / Bericht aus der Praxis: Peer teaching: From method to philosophy.

    PubMed

    Ten Cate, Olle

    2017-11-01

    Peer teaching or peer-assisted learning is a popular topic in the medical education literature. While not one method of education, a categorization is possible according to (a) the developmental distance between learner and peer teacher, (b) the scale or group size of learners in peer teaching arrangements and (c) the extent of formality or structure of the arrangement. That yields many different forms of peer teaching. Viewing peer teaching as a multifaceted method shows several benefits. On a deeper level however peer teaching may be viewed as a philosophy of medical education that has historical roots but aligns well with current thinking of teaching and learning across the continuum of medical education. Copyright © 2017. Published by Elsevier GmbH.

  5. Persönlichkeitsentwicklung als ziel der Bildung: Aus der Sicht eines Psychologen

    NASA Astrophysics Data System (ADS)

    Heinze, Burger

    1990-06-01

    Personality, which is a term almost always used in a positive sense, does not exist from the moment of birth, but it develops under the influence of heredity and environment. Adolescence, which is seen as a transition from childhood to adulthood, raises difficulties in many modern industrialized countries as a result of the often arduous search for individual identity. In this context identity is seen as an interaction between heredity and environment. While developing his own personality, the young person has to maintain an integral existence vis-à-vis himself, society and life. Psychology defines the personality as the sum of numerous psychological characteristics, through which differences between people are revealed. The development of these characteristics is to be seen in the environment, maturation and actions of the individual. It can be subdivided into causes, conditions and processes. Finally the article discusses various aspects of the general question of education. The author concludes that the development of the personality should be an aim of education, but that this aim is presently unattainable because of a lack of clarity in the concept of education.

  6. Gold nanoparticles with different capping systems: an electronic and structural XAS analysis.

    PubMed

    López-Cartes, C; Rojas, T C; Litrán, R; Martínez-Martínez, D; de la Fuente, J M; Penadés, S; Fernández, A

    2005-05-12

    Gold nanoparticles (NPs) have been prepared with three different capping systems: a tetralkylammonium salt, an alkanethiol, and a thiol-derivatized neoglycoconjugate. Also gold NPs supported on a porous TiO(2) substrate have been investigated. X-ray absorption spectroscopy (XAS) has been used to determine the electronic behavior of the different capped/supported systems regarding the electron/hole density of d states. Surface and size effects, as well as the role of the microstructure, have been also studied through an exhaustive analysis of the EXAFS (extended X-ray absorption fine structure) data. Very small gold NPs functionalized with thiol-derivatized molecules show an increase in d-hole density at the gold site due to Au-S charge transfer. This effect is overcoming size effects (which lead to a slightly increase of the d-electron density) for high S:Au atomic ratios and core-shell microstructures where an atomically abrupt Au-S interface likely does not exist. It has been also shown that thiol functionalization of very small gold NPs is introducing a strong distortion as compared to fcc order. To the contrary, electron transfer from reduced support oxides to gold NPs can produce a higher increase in d-electron density at the gold site, as compared to naked gold clusters.

  7. Review of the Bethesda System for Reporting Thyroid Cytopathology: a local study in Bohol Island, Philippines.

    PubMed

    Salillas, Annette L; Sun, Faye Candice S; Almocera, Emelisa G

    2015-01-01

    The aim of this study was to evaluate the adaptability and reproducibility of the Bethesda System for Reporting Thyroid Cytopathology (BSRTC) in a local setting and to determine the risk of malignancy for each category. A retrospective cross-sectional study of 80 thyroid fine-needle aspiration cytology cases using the BSRTC with corresponding histopathology was done between September 2009 and December 2012. Agreement scores were calculated using kappa statistics. Consensus among two readers was attained for 73 cases (91.25%). No disagreement was noted for the malignant cases. The strength of agreement was very good, with a kappa statistic of 0.90. The risk of malignancy observed histologically was as follows: benign 3%, atypia of undetermined significance (AUS) 50%, suspicious for follicular/Hürthle cell neoplasm 50%, suspicious for malignancy 78%, and malignant 100%. In this study, there is an outstanding reproducibility for the classification scheme. The application of the BSRTC as the standardized reporting is readily adaptable and therefore its application in larger medical centers is highly recommended. Our findings of a higher risk of malignancy seen in AUS (50%) and malignant (100%) categories in those who underwent surgical resection corroborated other published studies. Conveying this risk to clinical colleagues is important and will facilitate optimal patient care. © 2015 S. Karger AG, Basel.

  8. A method to quantify and compare clinicians' assessments of patient understanding during counseling of standardized patients.

    PubMed

    Farrell, Michael H; Kuruvilla, Pramita; Eskra, Kerry L; Christopher, Stephanie A; Brienza, Rebecca S

    2009-10-01

    To introduce a method for quantifying clinicians' use of assessment of understanding (AU) questions, and to examine medicine residents' AU usage during counseling of standardized patients about prostate or breast cancer screening. Explicit-criteria abstraction was done on 86 transcripts, using a data dictionary for 4 AU types. We also developed a procedure for estimating the "load" of informational content for which the clinician has not yet assessed understanding. Duplicate abstraction revealed reliability kappa=0.96. Definite criteria for at least one AU were found in 68/86 transcripts (79%). Of these, 2 transcripts contained a request for a teach-back ("what is your understanding of this?"), 2 contained an open-ended AU, 46 (54%) contained only a close-ended AU, and 18 (21%) only contained an "OK?" question. The load calculation identified long stretches of conversation without an AU. Many residents' transcripts lacked AUs, and included AUs were often ineffectively phrased or inefficiently timed. Many patients may not understand clinicians, and many clinicians may be unaware of patients' confusion. Effective AU usage is important enough to be encouraged by training programs and targeted by population-scale quality improvement programs. This quantitative method should be useful in population-scale measurement of AU usage. 2009 Elsevier Ireland Ltd.

  9. Isomorphism and solid solutions among Ag- and Au-selenides

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Palyanova, Galina A.; Seryotkin, Yurii V.; Novosibirsk State University

    Au-Ag selenides were synthesized by heating stoichiometric mixtures of elementary substances of initial compositions Ag{sub 2−x}Au{sub x}Se with a step of x=0.25 (0≤x≤2) to 1050 °C and annealing at 500 °C. Scanning electron microscopy, optical microscopy, electron microprobe analysis and X-ray powder diffraction methods have been applied to study synthesized samples. Results of studies of synthesized products revealed the existence of three solid solutions with limited isomorphism Ag↔Au: naumannite Ag{sub 2}Se – Ag{sub 1.94}Au{sub 0.06}Se, fischesserite Ag{sub 3}AuSe{sub 2} - Ag{sub 3.2}Au{sub 0.8}Se{sub 2} and gold selenide AuSe - Au{sub 0.94}Ag{sub 0.06}Se. Solid solutions and AgAuSe phases were added tomore » the phase diagram of Ag-Au-Se system. Crystal-chemical interpretation of Ag-Au isomorphism in selenides was made on the basis of structural features of fischesserite, naumannite, and AuSe. - Highlights: • Au-Ag selenides were synthesized. • Limited Ag-Au isomorphism in the selenides is affected by structural features. • Some new phases were introduced to the phase diagram Ag-Au-Se.« less

  10. Lymph node metastasis after endoscopic submucosal dissection of a differentiated gastric cancer confined to the mucosa with an ulcer smaller than 30 mm.

    PubMed

    Fujii, Hiroyuki; Ishii, Eiji; Tochitani, Shinako; Nakaji, So; Hirata, Nobuto; Kusanagi, Hiroshi; Narita, Makoto

    2015-01-01

    In the expanded indications for endoscopic resection, Japanese guidelines for gastric cancer include differentiated cancers confined to the mucosa with an ulcer <30 mm. We describe a patient with lymph node metastasis after curative endoscopic submucosal dissection (ESD) for a tumor of this indication. The patient was a 70-year-old man with chronic hepatitis C. He underwent ESD for early gastric cancer in May 2010. Pathology revealed a moderately differentiated adenocarcinoma, 22 × 17 mm in size, that was confined to the mucosa with an ulcer. The horizontal and vertical margins were negative for the tumor. We diagnosed thiscase as curative resection of expanded indication and followed this patient with endoscopy, abdominal ultrasonography (AUS) or enhanced computed tomography (CT) approximately every 6 months. After 17 months, lymph node metastasis was detected with AUS and CT and diagnosed by endoscopic ultrasound-guided fine-needle aspiration biopsy in August 2011. Distal gastrectomy with D2 dissection was carried out in December 2011. Although it is low, the possibility of recurrence should be borne in mind after endoscopic treatment of early gastric cancer, despite its inclusion in the expanded indications for endoscopic resection. © 2014 The Authors. Digestive Endoscopy © 2014 Japan Gastroenterological Endoscopy Society.

  11. Direct Calculation of Short Circuit Reactance, Winding Strength, and Inherent Forms of Output Transformers (Direkte Berechung der Kurzschlussreaktanzen, Wicklungskraefte und Eigenformen von Leistungstransformatoren)

    DTIC Science & Technology

    2001-01-01

    die elektrische Leitfiihigkeit a,. und die relative Permeabilitat Yrn auf. In die Leiter sind harmonisch von der Zeit abhdngige Str ~me eingeprligt, die...Zusammengefasst werden die Beziehungen (5.15) dann durch Mit den Maschen- und Knotengleichungen sind die Abhdngigkeiten der Str ~ime und Span- nungen...besteht aus t Spalten und kennzeichnet die Tore, an denen Str ~me eingeprdgt sind. Daher ist sie gemdl3 [TnT] J,,,5, wenn in Tor bein Strom eingepriigt ist

  12. Dismounted Warrior Network Experiments

    DTIC Science & Technology

    2000-11-01

    Foxtrot Locomotion Human Joystick ODT Joystick Foot Pedal + Head Orientation Visual Display Wireless HMD 4 Projection Desktop Single Screens (WISE... Biomechanics DI-Guy JackML DI-Guy Table 1. VICs Comparison Matrix VIC Alpha is the Dismounted Soldier Simulation (DSS) system developed by Veda, Inc. under a...using a pressure sensitive foot pedal . The user’s head is tracked with a magnetic sensor and is used to control steering through the environment. A

  13. FAA (Federal Aviation Administration) Aviation Forecasts, Fiscal Years 1990-2001

    DTIC Science & Technology

    1990-03-01

    continue the growthdriven aircraft. pattern that began in 1983. The de- mand for FAA operational services isIncreased business use of general atcptd t ...across-the-board fare increases and an have also attempted to restrict the use E aus -. of discount fares by business travelears T ...in the case of purchas- Combining these factors--general ing a turbojet, a decline) are a good economic trends, cost factors, the omen for the

  14. Reducing Prostate Cancer Disparities Through Behavioral and Biologic Epidemiologic Approaches

    DTIC Science & Technology

    2011-09-01

    Approved OMB No. 0704-0188 Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for...DO NOT RETURN YOUR FORM TO THE ABOVE ADDRESS. 1 . REPORT DATE (DD-MM-YYYY) 2. REPORT TYPE 3. DATES COVERED (From - To) 4. TITLE AND SUBTITLE 5a...use of behavioral and biologic epidemiological methods concurrently. I seek to utilize this award to accomplish four main objectives: 1 ) To

  15. Dilemmas in Forward Basing: Understanding the Impact of the American Military Presence in Bahrain

    DTIC Science & Technology

    2014-06-01

    bases, local businessmen, a base workers group, and members of the self -defense force.75 Ultimately, Governor, Ota was voted out of office and a...U.S. access to Turkish soil in 1979 to rescue hostages in Tehran during the Islamic Revolution in Iran. Relations did not begin to heal until after...demonstrators from the roundabout with rubber bullets, and teargas. Four demonstrators were killed during the raid and others died shortly after. The

  16. Teilchenphysik Pentaquarks - existieren sie wirklich?

    NASA Astrophysics Data System (ADS)

    Ziegler, Thomas

    2005-07-01

    Für viel Wirbel sorgte vor zwei Jahren die Entdeckung eines Pentaquarks, eines bis dahin unbekannten Teilchens, das aus vier Quarks und einem Antiquark besteht. Seitdem hat es jedoch Experimente gegeben, welche die Messung nicht bestätigen konnten. Physiker vom Jefferson-Laboratorium in den USA haben nun kürzlich die Ergebnisse eines Experimentes mit sehr hoher Statistik vorgestellt. Auch sie fanden das Pentaquark nicht. Gibt es das Teilchen also gar nicht?

  17. Britain, France and Germany: Priorities for the European Union’s Security and Defense Policy

    DTIC Science & Technology

    2009-12-01

    Ronja Kempin and Marco Overhaus, Kein großer Sprung in der Entwicklung der ESVP: Lehren aus der Französischen EU- Ratspräsidentschaft (Berlin...Power," Survival 37, no. 3 (Autumn 1995), 82–103, 96. 144 Marco Overhaus, "German Foreign Policy and the Shadow of the Past," SAIS Review 25, no. 2...have enforced an arms embargo, Marco Overhaus, a research fellow at the German 171 Thomas

  18. Physik gestern und heute Von der Metallstange zum Hochenergielaser

    NASA Astrophysics Data System (ADS)

    Heering, Peter

    2002-05-01

    Im Mai 1752 wurde in Marly bei Paris auf Anregung des amerikanischen Forschers und Politikers Benjamin Franklin erstmals die elektrische Natur des Blitzes nachgewiesen. Damals beschrieb Franklin auch eine technische Vorrichtung, die als Schutz von Gebäuden vor Blitzschlägen dienen sollte: den Blitzableiter. Diese aus heutiger Sicht scheinbar triviale Vorrichtung wurde aber keineswegs unmittelbar akzeptiert. Und bis heute ist die Forschung zum Schutz von Einrichtungen vor Blitzschlägen nicht abgeschlossen.

  19. Hydrodynamic Drag Reduction

    DTIC Science & Technology

    2015-04-01

    Computational Engineering unstructured RANS/LES/DES solver , Tenasi, was used to predict drag and simulate the free surface flow around the ACV over a...using a second-order accurate Roe approximate Riemann scheme, while viscous fluxes are evaluated using a second-order directional derivative approach...Predictions of rigid body ship motions for the SI75 container ship in incident waves and methodology for a one-way coupling of the Tenasi flow solver

  20. Threshold Lesion Temperatures in Laser-Irradiated Rabbit Eyes

    DTIC Science & Technology

    1975-03-31

    VA. 22151 EI.F.CTROND ltESEAil04 CENTER DIE tJNIVERSITY Of TEXAS AT AUS11N Ausdn, Teas 78712 \\ Die lleotrold011 ........ c.eer at De Uol~ of Taaa...P.E. and choroid, and conductivity and volumetric specific heat for each layer. The temperature sensors were made from 1 mm quartz rod pulled over...detailed description of the probe manufacturing process and its properties can be found elsewhere [Cain and Welch, 1972]. The sensor output first

  1. Conversational Interfaces: A Domain-Independent Architecture for Task-Oriented Dialogues

    DTIC Science & Technology

    2002-12-12

    system ought to be able tofa ilitate the understanding of the intentions of the human operatorand be ause it should be able to ommuni ate the plans...instantiated from the re ipes withnatural language a straightforward task for the dialogue front-end tofa ilitate. Moreover, it is designed so that onstraints...htake advantage of the framework dis ussed in this paper in order tofa iliate more natural dialogues between the human operator and thedevi e. The

  2. Air Cushion Landing System Stability Study.

    DTIC Science & Technology

    1981-02-01

    desirable. A useful result is that the analysis approach employed provides a systematic technique with which a given trunk/vehicle system may be designed ...models. Since for the 48. system analyzed the stability appears better if the side and end elements are truly isolated, the po~zibility of designing a...used to study the stability behavior appears to pro- vide a useful tool for design of systems of this type so that acceptable stability behavior is

  3. Aircraft Structural Design Handbook for Lower Cost Maintenance and Repair

    DTIC Science & Technology

    1977-03-01

    Structure Repair and Maintenance program under Air Force contract F33615-74-C-3101, Project No. 1368, Task No. 136802. The work was performed by...Interchangeability 6.4.5.3 Work Area Consideration 6.5 Life Cycle Cost Impact Considerati ons 6.5.1 Introduction 6.5.2 Objective 6.5.3 Life Cycle Cost...engine sonic vibration, ^auses working of the vane assemblies and their inboard and outboard attach members resulting in fatigue cracks. The constant

  4. Rapid Diagnosis of Arbovirus and Arenavirus Infections by Immunofluorescence.

    DTIC Science & Technology

    1980-01-01

    addition to Banzi virus in the blood of viremic mice, other viruses were tested with a view to correlate in an amplifying cell culture system the result of... Virus identification. Two viruses , F-41451 and Aus-CF 122, partially identified at the originating laboratories, were submitted to YARU for final...two ampules of the corresponding virus stocks and 6 x 0.5 ml of hyperimmune mouse serum were included In the shipment. The viruses and cells used and

  5. Joint Force Quarterly. Number 12, Summer 1996

    DTIC Science & Technology

    1996-08-01

    that the Aus- tralian model is either perfect—it is evolving—or appropriate for other countries. Australia clearly enjoys a unique strategic culture ...Unified Endeavor ’95 and Modeling Effective Training by Ralph W. Passarelli and Frank E. Schwamb 16 Training the Pacific Warriors by Jay B. Yakeley III...changes into the 21st century. It will help us harness the best ef- forts and keep us focused on joint capabilities, not business as usual or

  6. Shock Wave Thermomechanical Processing of Gas Turbine Disks.

    DTIC Science & Technology

    1980-11-01

    8217mad .Jcasfe )a runent td te Navy________________________________________ fiF A T RBN IIIOC AuS IATO D99h O WNGRDIN l~asKSg #in 1Nov 19"i CHDL Is...E’lngattim In Area Specimen No. Plate No. Schedule No. (MPa; tkssj iMPa, tksti M, r’ 1 4 1 1089.7 158.o 12676 181.8 19 3 20.5 2 I 1085.5 157 4 1282 ?4 l53

  7. Effect of molecular conformations on the electronic transport in oxygen-substituted alkanethiol molecular junctions

    NASA Astrophysics Data System (ADS)

    Wang, Minglang; Wang, Hao; Zhang, Guangping; Wang, Yongfeng; Sanvito, Stefano; Hou, Shimin

    2018-05-01

    The relationship between the molecular structure and the electronic transport properties of molecular junctions based on thiol-terminated oligoethers, which are obtained by replacing every third methylene unit in the corresponding alkanethiols with an oxygen atom, is investigated by employing the non-equilibrium Green's function formalism combined with density functional theory. Our calculations show that the low-bias conductance depends strongly on the conformation of the oligoethers in the junction. Specifically, in the cases of trans-extended conformation, the oxygen-dominated transmission peaks are very sharp and well below the Fermi energy, EF, thus hardly affect the transmission around EF; the Au-S interface hybrid states couple with σ-bonds in the molecular backbone forming the conduction channel at EF, resulting in a conductance decay against the molecular length close to that for alkanethiols. By contrast, for junctions with oligoethers in helical conformations, some π-type oxygen orbitals coupling with the Au-S interface hybrid states contribute to the transmission around EF. The molecule-electrode electronic coupling is also enhanced at the non-thiol side due to the specific spatial orientation introduced by the twist of the molecular backbone. This leads to a much smaller conductance decay constant. Our findings highlight the important role of the molecular conformation of oligoethers in their electronic transport properties and are also helpful for the design of molecular wires with heteroatom-substituted alkanethiols.

  8. Wirksamkeit und Sicherheit von Fumarsäureestern in Kombination mit Phototherapie bei Patienten mit moderater bis schwerer Plaque-Psoriasis (FAST).

    PubMed

    Weisenseel, Peter; Reich, Kristian; Griemberg, Wiebke; Merten, Katharina; Gröschel, Christine; Gomez, Natalie Nunez; Taipale, Kirsi; Bräu, Beate; Zschocke, Ina

    2017-02-01

    Die Behandlung von Psoriasis-Patienten mit einer Kombination aus Fumarsäureestern (FSE, Fumaderm ® ) und Phototherapie (UV) ist verbreitet, wurde aber im Rahmen von Studien wenig untersucht. Bisher liegen lediglich Daten aus einer kleinen Pilotstudie vor. Intention dieser Studie war, eine FSE/UV-Kombinationsbehandlung an einem größeren Patientenkollektiv mit mittelschwerer bis schwerer Psoriasis zu untersuchen. In dieser prospektiven, multizentrischen, nichtinterventionellen Studie wurden Daten von Patienten mit FSE/UV-Kombinationstherapie hinsichtlich der Wirksamkeit (PGA' PASI, DLQI, EQ-5D), Sicherheit und Dosierung über einen Zeitraum von zwölf Monaten erfasst und mit Daten einer retrospektiven Studie mit FSE-Monotherapie verglichen. Es wurden Daten von 363 Patienten ausgewertet. Unter der Kombinationstherapie verbesserten sich alle Wirksamkeitsparameter deutlich. Im Vergleich zur Monotherapie mit FSE konnte durch die Kombination mit UV ein schnellerer Wirkeintritt erzielt werden, wobei nach zwölf Monaten kein Unterschied in der Wirksamkeit bestand. Die Dauer und Art der Phototherapie zeigte keinen Einfluss auf die Wirksamkeitsparameter. Allgemein wurde die Kombinationstherapie gut vertragen. Unerwünschte Ereignisse wurden bei 7 % der Patienten berichtet. Die FSE/UV Kombinationstherapie zeigt eine gute Wirksamkeit und Verträglichkeit und kann zu einem schnelleren Wirkeintritt führen. Eine Kombinationstherapie erscheint vor allem in den ersten drei Monaten der FSE Behandlung sinnvoll. © 2017 Deutsche Dermatologische Gesellschaft (DDG). Published by John Wiley & Sons Ltd.

  9. Atypia on breast core needle biopsies: reproducibility and significance.

    PubMed

    Darvishian, Farbod; Singh, Baljit; Simsir, Aylin; Ye, Weimin; Cangiarella, Joan F

    2009-01-01

    This study analyzes the interobserver variability in interpreting atypia on breast core needle biopsies and in each category of atypia calculates the upgrade risk of carcinoma in the subsequent surgical excision. We identified 51 cases of atypia on breast core needle biopsies performed at our institution from January 2003 to August 2006. The atypia was classified into 4 categories: atypical ductal hyperplasia (ADH), atypical lobular hyperplasia (ALH), flat epithelial atypia (FEA), and atypia of undetermined significance (AUS). After a tutorial session, these cases were independently reviewed by four pathologists, whose overall multi-rater kappa value for agreement on different categories of atypia was 0.79 (95% CI, 0.69-0.89), which is within the substantial agreement range. The upgrade risk in each category of atypia was as follows: ADH 20% (p = 0.04); ALH 10% (p = 0.6); FEA 16.6% (p = 0.23), and AUS 100% (p = 0.96). Based on our findings, we conclude that follow-up excision should be performed after a diagnosis of ADH. The upgrade risk did not reach statistical significance in ALH or FEA. Although follow-up excision cannot be strongly recommended in ALH and FEA, it should be considered since the upgrade risk is not negligible. Strict adherence to the diagnostic criteria and tutorial sessions can help pathologists to achieve substantial agreement in interpreting atypia on breast core needle biopsies.

  10. Genomic Sequences of Australian Bluetongue Virus Prototype Serotypes Reveal Global Relationships and Possible Routes of Entry into Australia

    PubMed Central

    Bulach, Dieter M.; Amos-Ritchie, Rachel; Adams, Mathew M.; Walker, Peter J.; Weir, Richard

    2012-01-01

    Bluetongue virus (BTV) is transmitted by biting midges (Culicoides spp.). It causes disease mainly in sheep and occasionally in cattle and other species. BTV has spread into northern Europe, causing disease in sheep and cattle. The introduction of new serotypes, changes in vector species, and climate change have contributed to these changes. Ten BTV serotypes have been isolated in Australia without apparent associated disease. Simplified methods for preferential isolation of double-stranded RNA (dsRNA) and template preparation enabled high-throughput sequencing of the 10 genome segments of all Australian BTV prototype serotypes. Phylogenetic analysis reinforced the Western and Eastern topotypes previously characterized but revealed unique features of several Australian BTVs. Many of the Australian BTV genome segments (Seg-) were closely related, clustering together within the Eastern topotypes. A novel Australian topotype for Seg-5 (NS1) was identified, with taxa spread across several serotypes and over time. Seg-1, -2, -3, -4, -6, -7, -9, and -10 of BTV_2_AUS_2008 were most closely related to the cognate segments of viruses from Taiwan and Asia and not other Australian viruses, supporting the conclusion that BTV_2 entered Australia recently. The Australian BTV_15_AUS_1982 prototype was revealed to be unusual among the Australian BTV isolates, with Seg-3 and -8 distantly related to other BTV sequences from all serotypes. PMID:22514341

  11. Comparative Analysis of the First Complete Enterococcus faecium Genome

    PubMed Central

    Lam, Margaret M. C.; Seemann, Torsten; Bulach, Dieter M.; Gladman, Simon L.; Chen, Honglei; Haring, Volker; Moore, Robert J.; Ballard, Susan; Grayson, M. Lindsay; Johnson, Paul D. R.; Howden, Benjamin P.

    2012-01-01

    Vancomycin-resistant enterococci (VRE) are one of the leading causes of nosocomial infections in health care facilities around the globe. In particular, infections caused by vancomycin-resistant Enterococcus faecium are becoming increasingly common. Comparative and functional genomic studies of E. faecium isolates have so far been limited owing to the lack of a fully assembled E. faecium genome sequence. Here we address this issue and report the complete 3.0-Mb genome sequence of the multilocus sequence type 17 vancomycin-resistant Enterococcus faecium strain Aus0004, isolated from the bloodstream of a patient in Melbourne, Australia, in 1998. The genome comprises a 2.9-Mb circular chromosome and three circular plasmids. The chromosome harbors putative E. faecium virulence factors such as enterococcal surface protein, hemolysin, and collagen-binding adhesin. Aus0004 has a very large accessory genome (38%) that includes three prophage and two genomic islands absent among 22 other E. faecium genomes. One of the prophage was present as inverted 50-kb repeats that appear to have facilitated a 683-kb chromosomal inversion across the replication terminus, resulting in a striking replichore imbalance. Other distinctive features include 76 insertion sequence elements and a single chromosomal copy of Tn1549 containing the vanB vancomycin resistance element. A complete E. faecium genome will be a useful resource to assist our understanding of this emerging nosocomial pathogen. PMID:22366422

  12. An economic evaluation alongside a randomised controlled trial on psycho-education counselling intervention offered by midwives to address women's fear of childbirth in Australia.

    PubMed

    Turkstra, Erika; Mihala, Gabor; Scuffham, Paul A; Creedy, Debra K; Gamble, Jenny; Toohill, Jocelyn; Fenwick, Jennifer

    2017-03-01

    The rate of caesarean section continues to increase, and there is evidence that childbirth fear is a contributing factor. Insufficient evidence is available on the impact of reducing childbirth fear on health-related quality of life and health service use. We undertook an economic evaluation of a psycho-education counselling intervention offered by midwives to address women's fear of childbirth in Australia. Pregnant women (n = 339) with high childbirth fear were randomised to a midwife-led psycho-education intervention for childbirth fear or to usual care. This paper presents the economic evaluation of the intervention based on health-related quality of life and health service use from recruitment to six weeks postpartum (n = 184). The changes in health-related quality of life after birth (EQ-5D-3L: 0.016 vs. 0.010, p = 0.833, for usual care and intervention) and total health care use cost (AUS$10,110 vs. AUS$9980, p = 0.819) were similar between groups. The intervention did not increase costs; however, in a post hoc analysis, the interventions might be cost-effective for those women with very high childbirth fear. This brief psycho-education intervention by midwives did not improve the health-related quality of life of women, and had no impact on overall cost. Copyright © 2016 Elsevier B.V. All rights reserved.

  13. ATP-binding cassette transporters and sterol O-acyltransferases interact at membrane microdomains to modulate sterol uptake and esterification.

    PubMed

    Gulati, Sonia; Balderes, Dina; Kim, Christine; Guo, Zhongmin A; Wilcox, Lisa; Area-Gomez, Estela; Snider, Jamie; Wolinski, Heimo; Stagljar, Igor; Granato, Juliana T; Ruggles, Kelly V; DeGiorgis, Joseph A; Kohlwein, Sepp D; Schon, Eric A; Sturley, Stephen L

    2015-11-01

    A key component of eukaryotic lipid homeostasis is the esterification of sterols with fatty acids by sterol O-acyltransferases (SOATs). The esterification reactions are allosterically activated by their sterol substrates, the majority of which accumulate at the plasma membrane. We demonstrate that in yeast, sterol transport from the plasma membrane to the site of esterification is associated with the physical interaction of the major SOAT, acyl-coenzyme A:cholesterol acyltransferase (ACAT)-related enzyme (Are)2p, with 2 plasma membrane ATP-binding cassette (ABC) transporters: Aus1p and Pdr11p. Are2p, Aus1p, and Pdr11p, unlike the minor acyltransferase, Are1p, colocalize to sterol and sphingolipid-enriched, detergent-resistant microdomains (DRMs). Deletion of either ABC transporter results in Are2p relocalization to detergent-soluble membrane domains and a significant decrease (53-36%) in esterification of exogenous sterol. Similarly, in murine tissues, the SOAT1/Acat1 enzyme and activity localize to DRMs. This subcellular localization is diminished upon deletion of murine ABC transporters, such as Abcg1, which itself is DRM associated. We propose that the close proximity of sterol esterification and transport proteins to each other combined with their residence in lipid-enriched membrane microdomains facilitates rapid, high-capacity sterol transport and esterification, obviating any requirement for soluble intermediary proteins. © FASEB.

  14. Physiographic and land cover attributes of the Puget Lowland and the active streamflow gaging network, Puget Sound Basin

    USGS Publications Warehouse

    Konrad, Christopher; Sevier, Maria

    2014-01-01

    Geospatial information for the active streamflow gaging network in the Puget Sound Basin was compiled to support regional monitoring of stormwater effects to small streams. The compilation includes drainage area boundaries and physiographic and land use attributes that affect hydrologic processes. Three types of boundaries were used to tabulate attributes: Puget Sound Watershed Characterization analysis units (AU); the drainage area of active streamflow gages; and the catchments of Regional Stream Monitoring Program (RSMP) sites. The active streamflow gaging network generally includes sites that represent the ranges of attributes for lowland AUs, although there are few sites with low elevations (less than 60 meters), low precipitation (less than 1 meter year), or high stream density (greater than 5 kilometers per square kilometers). The active streamflow gaging network can serve to provide streamflow information in some AUs and RSMP sites, particularly where the streamflow gage measures streamflow generated from a part of the AU or that drains to the RSMP site, and that part of the AU or RSMP site is a significant fraction of the drainage area of the streamgage. The maximum fraction of each AU or RSMP catchment upstream of a streamflow gage and the maximum fraction of any one gaged basin in an AU or RSMP along with corresponding codes are provided in the attribute tables.

  15. Discrimination between smiling faces: Human observers vs. automated face analysis.

    PubMed

    Del Líbano, Mario; Calvo, Manuel G; Fernández-Martín, Andrés; Recio, Guillermo

    2018-05-11

    This study investigated (a) how prototypical happy faces (with happy eyes and a smile) can be discriminated from blended expressions with a smile but non-happy eyes, depending on type and intensity of the eye expression; and (b) how smile discrimination differs for human perceivers versus automated face analysis, depending on affective valence and morphological facial features. Human observers categorized faces as happy or non-happy, or rated their valence. Automated analysis (FACET software) computed seven expressions (including joy/happiness) and 20 facial action units (AUs). Physical properties (low-level image statistics and visual saliency) of the face stimuli were controlled. Results revealed, first, that some blended expressions (especially, with angry eyes) had lower discrimination thresholds (i.e., they were identified as "non-happy" at lower non-happy eye intensities) than others (especially, with neutral eyes). Second, discrimination sensitivity was better for human perceivers than for automated FACET analysis. As an additional finding, affective valence predicted human discrimination performance, whereas morphological AUs predicted FACET discrimination. FACET can be a valid tool for categorizing prototypical expressions, but is currently more limited than human observers for discrimination of blended expressions. Configural processing facilitates detection of in/congruence(s) across regions, and thus detection of non-genuine smiling faces (due to non-happy eyes). Copyright © 2018 Elsevier B.V. All rights reserved.

  16. The incidence and cost of cardiac surgery adverse events in Australian (Victorian) hospitals 2003-2004.

    PubMed

    Ehsani, Jonathon Pouya; Duckett, Stephen J; Jackson, Terri

    2007-12-01

    The aim of this study was to estimate the incidence of adverse events in acute surgical admissions for cardiac disease in admitted episodes in the year 2003-2004 and to estimate the cost of these complications to the Victorian health system. Cardiac surgery adverse events are among the most frequent and significant contributors to the morbidity, mortality and cost associated with hospitalisation. Patient-level costing data set for major Victorian public hospitals in 2003-2004 was analysed for adverse events using C-prefixed markers, denoting complications that arose during the course of hospital treatment for cardiac surgery diagnosis related groups (DRGs). The cost of adverse events was estimated by linear regression modelling, adjusted for age and co-morbidity. A total of 16,766 multi-day cardiac disease cases were identified, of whom 6,181 (36.85%) had at least one adverse event. Patients with adverse events stayed approximately 7 days longer and had four times the case fatality rate than those without. After adjustment for age and co-morbidity, the presence of an adverse event adds AUS$5,751. The sum of the total cost of adverse events for each DRG was AUS$42.855 million, representing 21.6% of total expenditure on cardiac surgery and adding 27.5% in broad terms to the cardiac surgery budget.

  17. Asian wild rice is a hybrid swarm with extensive gene flow and feralization from domesticated rice

    PubMed Central

    Wang, Hongru; Vieira, Filipe G.; Crawford, Jacob E.; Chu, Chengcai; Nielsen, Rasmus

    2017-01-01

    The domestication history of rice remains controversial, with multiple studies reaching different conclusions regarding its origin(s). These studies have generally assumed that populations of living wild rice, O. rufipogon, are descendants of the ancestral population that gave rise to domesticated rice, but relatively little attention has been paid to the origins and history of wild rice itself. Here, we investigate the genetic ancestry of wild rice by analyzing a diverse panel of rice genomes consisting of 203 domesticated and 435 wild rice accessions. We show that most modern wild rice is heavily admixed with domesticated rice through both pollen- and seed-mediated gene flow. In fact, much presumed wild rice may simply represent different stages of feralized domesticated rice. In line with this hypothesis, many presumed wild rice varieties show remnants of the effects of selective sweeps in previously identified domestication genes, as well as evidence of recent selection in flowering genes possibly associated with the feralization process. Furthermore, there is a distinct geographical pattern of gene flow from aus, indica, and japonica varieties into colocated wild rice. We also show that admixture from aus and indica is more recent than gene flow from japonica, possibly consistent with an earlier spread of japonica varieties. We argue that wild rice populations should be considered a hybrid swarm, connected to domesticated rice by continuous and extensive gene flow. PMID:28385712

  18. Patient reported outcome measures in male incontinence surgery.

    PubMed

    Tran, M G B; Yip, J; Uveili, K; Biers, S M; Thiruchelvam, N

    2014-10-01

    Patient reported outcome measures (PROMs) were used to evaluate outcomes of the artificial urinary sphincter (AUS) and the AdVance™ (American Medical Systems, Minnetonka, MN, US) male sling system (AVMS) for the symptomatic management of male stress urinary incontinence. All male patients with stress urinary incontinence referred to our specialist clinic over a two-year period completed the ICIQ-UI SF (International Consultation on Incontinence Questionnaire on Urinary Incontinence Short Form) and the ICIQ-MLUTS LF (International Consultation on Incontinence Questionnaire on Male Lower Urinary Tract Symptoms Long Form) at consultation as well as at subsequent follow-up appointments. The Wilcoxon signed-rank test for non-parametric paired data was used for pre and postoperative comparisons. The chi-squared test was used for categorical variables. Thirty-seven patients (forty surgical cases) completed a preoperative and at least one follow-up questionnaire. There was a statistically significant improvement in PROMs postoperatively, regardless of mode of surgery (p<0.01). Analysis of the ICIQ-MLUTS LF showed that patients with higher preoperative scores (>25) had greater improvement with an AUS than with the AVMS (p<0.01). This prospective study shows that completion and collection of PROMs as part of routine clinical practice is achievable and useful in the assessment of male stress incontinence surgery. PROMs are important instruments to assess effectiveness of healthcare intervention and they are useful adjuncts in surgical studies.

  19. The Density Matrix for Single-mode Light after k-Photon Absorption

    NASA Astrophysics Data System (ADS)

    Voigt, H.; Bandilla, A.

    In order to continue and generalize the studies of the density matrix of a light field undergoing k-photon absorption, in this paper we put the emphasis on the off-diagonal elements. The solution obtained earlier for the diagonal elements describing the photon statistics can be found as a special case but will not be discussed again. The general solution calculated by recursion shows an asymptotic behaviour if the initial photon number is sufficiently high. Only the initial phase information survives. Illustrating the solution we start with coherent light and a generalized coherent state.Translated AbstractDie Dichtematrix eines Lichtstrahls nach k-Photonen-Absorption aus einer ModeWir führen die Betrachtungen über das Verhalten der Dichtematrix eines Lichtfeldes nach k-Photonen-Absorption aus einer Mode verallgemeinernd weiter und konzentrieren uns auf die Nichtdiagonalelemente. Die im folgenden angegebene allgemeine Lösung, die durch Rekursion gefunden wurde, enthält die schon früher erhaltene, jedoch hier nicht weiter diskutierte Lösung für die Diagonalelemente als Spezialfall. Sie zeigt ferner, daß es einen asymptotischen Zustand gibt, der eine von der Ausgangsintensität unabhängige Information über die Ausgangsphase enthält. Zur Diskussion der Lösung werden verschiedene Anfangsbedingungen betrachtet, so z. B. kohärentes Licht und kohärentes Licht, das ein Medium mit nichtlinearem Brechungsindex durchlaufen hat (Kerr-Effekt).

  20. Undiscovered hydrocarbon resources in the U.S. Gulf Coast Jurassic Norphlet and Smackover Formations

    USGS Publications Warehouse

    Pearson, Ofori N.

    2011-01-01

    The U.S. Geological Survey has completed assessments of undiscovered technically recoverable oil and gas resources in the Jurassic Norphlet and Smackover formations of the onshore coastal plain and State waters of the U.S. Gulf Coast. The Norphlet Formation consists of sandstones and interbedded shales and siltstones deposited during a marine transgression. Along its northeast margin, deposition of the Norphlet was in alluvial fans, fluvial systems, and dune and clastic sabkha environments. Mudstones of the underlying Smackover Formation act as source rocks for Norphlet reservoirs. The Norphlet was divided into the following three assessment units (AUs): the Norphlet Salt Basins and Updip AU, the Norphlet Mobile Bay Deep Gas AU, and the Norphlet South Texas Gas AU. The lower part of the Smackover consists primarily of dark carbonate mudstone and argillaceous limestone deposited in low-energy environments, and is one of the Gulf of Mexico Basin’s major source rocks. The upper part of the Smackover is comprised primarily of grain-supported carbonates deposited in high-energy environments. The Smackover was divided into the following four AUs: the Smackover Updip and Peripheral Fault Zone AU, the Smackover Salt Basin AU, the Smackover South Texas AU, and the Smackover Downdip Continuous Gas AU. Although the Norphlet and Smackover formations have been the focus of extensive exploration and production, they probably still contain significant undiscovered oil and gas resources.

  1. Single-Staged Improved Tubularized Preputial/Penile Skin Flap Urethroplasty for Obliterated Anterior Urethral Stricture: Long-Term Results.

    PubMed

    Xue, Jing-Dong; Xie, Hong; Fu, Qiang; Feng, Chao; Guo, Hui; Xu, Yue-Min

    2016-01-01

    To present an improved tubularized flap (ITF) technique and report the outcome of single-stage urethroplasty using preputial/penile skin flaps (PSFs) for the treatment of obliterative anterior urethral strictures (AUSs). From January 2000 to June 2012, 42 cases of obliterative AUS (3-14 cm, mean 6.38 cm) with urethral plate unsalvageable were treated using PSF-ITF urethroplasty including longitudinal skin flap, circular island flap, L-flap, Q-flap. Patients were divided into 3 groups: pendulous urethral stricture (Group A), bulbar urethral stricture (Group B) and panurethral strictures (Group C). Patients were followed up by uroflowmetry, urethrography and ureteroscope when necessary. The mean follow-up in these patients was 65 months (range 36 months-15 years). The primary success rates at 3-year follow-up were 75, 75 and 60% for Groups A, B and C, respectively. The overall success rates were 85, 83 and 70% with the remedial measure of a single visual internal urethrotomy at 3-year follow-up. A total 60% of the patients in the study completed more than 5 years of follow-up with no additional recurrence. Improved tubularized preputial/PSF urethroplasty with relatively high overall satisfaction is a novel technique for treatment of AUS when there is inadequate urethral plate or obliterative defects. © 2016 S. Karger AG, Basel.

  2. Die Bestimmung der Ephemeridenzeitkorrektur aus Aufnahmen der totalen Sonnenfinsternis vom 30. Juni 1973.

    NASA Astrophysics Data System (ADS)

    Haupt, H. F.; Firneis, M. G.; Fritzer, J. M.

    Photographs of the partial phases of the 1973 June 30 total solar eclipse taken in Mauretania were used to derive the correction ΔT = ET-UT. The introduction describes the problems and history of ΔT determinations. After a brief description of the expedition, location, instruments, and the observations, the reduction is treated in some detail. Probably due to the improper exposure of the films the radius of the Sun turned out too small, while the lunar radius showed a peculiar increase after totality. Correspondingly, this increase resulted in a decrease of the Sun-Moon distances that had to be accounted for by the introduction of a correction function. After having applied this plausible correction several assumptions of ΔT were made in the computations and the one yielding the mean value of the residuals equal to zero, was taken as the ΔT of the date, namely ΔT1973.5 = +54s-91, which is in good agreement with other determinations.

  3. Doktor Johannes Häringshauser - Was seine Bücher über ihn erzählen.

    NASA Astrophysics Data System (ADS)

    Feola, Vittoria

    2009-06-01

    Die Bibliothek des Dr. Johannes Häringshauser (1603-1642) weist ihren Besitzer als Arzt und Gelehrten mit großem geistigen Horizont aus. Hervorzuheben ist sein Interesse für Astronomie und Astrologie. Neben Werken, die unmittelbar mit seinen Studien in Wien und Padua und den Erfordernissen eines Arztes in Zusammenhang zu bringen sind (Klassiker der Heilkunde genauso wie aktuelle medizinische Publikationen), wird in seiner Büchersammlung eine reiche Palette an Themen abgedeckt: Theologie, Philosophie, Philologie, Politik, Geschichte und Länderkunde.

  4. Project Themis: PIV Measurement of Elbow Flow through a Flow Conditioner

    DTIC Science & Technology

    2011-12-01

    validation of the component. CFD simulations, using LH2 , showed that the pipe with a VORTAB generated more vorticity at the exit than the pipe without a...using LH2 , showed that the pipe with a Vortab generated more vorticity at the exit than the pipe without a Vortab. PA#11932 4 Particle Image...number Fluid Vortab location Comment 9,000,000 LH2 9D USET installation 32,000 Air 9D For Validation Additional details • Fluent • k-ε

  5. Die Grundlagen der Fernsehtechnik: Systemtheorie und Technik der Bildübertragung

    NASA Astrophysics Data System (ADS)

    Mahler, Gerhard

    Umfassende Einführung in die Grundlagen der Bewegtbild-Übertragung von den Anfängen bis zum heutigen Stand des digitalen Fernsehens mit einer aus der Praxis entstandenen systemtheoretischen Analyse. Die kompakte und anschaulich bebilderte Darstellung mit elementaren mathematischen Beschreibungen macht es dem Leser leicht, sich in die Bildübertragungstechnik einzuarbeiten. Thematische Einheiten erweitern den Wissensstoff - u.a. zu den Themen visuelle Wahrnehmung, mehrdimensionale Signaldarstellung, Farbmetrik, Digitalisierung, Elektronenoptik - und zeigen deren Anwendung auf die elektronische Bildübertragung.

  6. Elektrische Energieversorgung

    NASA Astrophysics Data System (ADS)

    Schulz, Detlef

    Nur mit einer zuverlässigen und wirtschaftlichen elektrischen Energieversorgung ist eine nachhaltige gesellschaftliche Entwicklung von Industrienationen möglich. Gleichzeitig muss diese selbst so nachhaltig, d. h. umweltverträglich gestaltet werden, dass auch zukünftige Generationen nicht in ihrer Entfaltung behindert werden. Eine versorgungssichere, wirtschaftliche und umweltverträgliche Energiebereitstellung ergibt sich nicht zwingend allein aus einer technisch evolutionären Entwicklung und ist auch bis heute nicht ausschließlich nur mit einer der bekannten Wandlungstechnologien nachweislich realisierbar.

  7. Fitment of ’TAMAM’ Standby Attitude Indicators to Macchi Aircraft.

    DTIC Science & Technology

    1980-08-01

    A.Dr-A .. 7 AIRCRAFT RESEARCH AND DEVELOPMENT UNIT EDINBURGH (AUS--ETC FIG 1/4 FITMENT OF ITAMAM’ STANDBY ATTITUDE INDICATORS TO MACCHI AIRCRA--ETC(U...REPIST( [IC’.4. T SERVICE . . .. , -- 7 i:.)U.,L ATO SHLL ThIS REPORT FITMENT OF ’TAMAM’ STANDBY= ATTITUDE INDICATORS L .-iTO MACCHI AIRCRAFT j APPROVED...TI-683 Isolation: UNCLAS Other c. Summary in Numbers: Isolation: UNCLAS 3 TITLE ] FITMENT OF ’TAMAN’ STANDBY ATTITUDE INDICATORS TO MACCHI AIRCRAFT

  8. Anbindung des SISIS-SunRise-Bibliothekssystems an das zentrale Identitätsmanagement

    NASA Astrophysics Data System (ADS)

    Ebner, Ralf; Pretz, Edwin

    Wir berichten über Konzepte und Implementierungen zur Datenprovisionierung aus den Personenverwaltungssystemen der Technischen Universität München (TUM) über das zentrale Metadirectory am Leibniz-Rechenzentrum (LRZ) in das SISIS-SunRise-Bibliothekssystem der Universitätsbibliothek der TUM (TUB). Es werden drei Implementierungsvarianten diskutiert, angefangen von der Generierung und Übertragung einfacher CSV-Dateien über ein OpenLDAP-basiertes Konzept als Backend für die SISIS-Datenbank bis zur endgültigen Implementierung mit dem OCLC IDM Connector.

  9. Archaeological Test Excavation and Evaluation of Three Prehistoric Sites at Swift Bar, on the Lower Snake River, Southeastern Washington.

    DTIC Science & Technology

    1984-01-01

    Bildschirmmaske gefragt. Anschließend werden die erfaßten Daten in der ent- sprechenden Datenbank abgespeichert. Selbstverständlich ist vor jeder Erfassung...registrierten Softwarcproduktc zunächst in einer Datenbank erstellt und erfaßt und anschließend in eine Datei kopiert. Als Beispiel sei ein Satz angeführt...Softwareprodukten installiert werden. 4.1 Ncurcgistricning von Nutzern für A l’S-DOS 17 Aus der Datenbank , in der die RACF-Pcrmits gespeichelt sind

  10. Measurement of $W$ -Boson Helicity-Fractions in Top-Quark Decays with the CDF II Experiment and Prospects for an Early $$t\\overline{t}$$ Cross-Section Measurement with the CMS Experiment (in German)

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Chwalek, Thorsten

    2010-12-02

    Aus was besteht die Welt? Die Frage nach den fundamentalen Bausteinen der Materie beschaftigte Wissenschaftler und Gelehrte zu allen Zeiten. Ausgehend von abstrakten philosophischen Uberlegungen wurde das Konzept von kleinsten, nicht weiter zerteilbaren Grundbausteinen der Materie bereits einige Jahrhunderte vor Christus von indischen und griechischen Philosophieschulen entwickelt. Etwa 450 v. Chr. pragte Demokrit den Begriff ´atomos, das “Unzerschneidbare”, fur die diskreten Grundbausteine der Materie. Doch erst in der jungeren Vergangenheit konnte dieses philosophische Konzept auch experimentell uberpruft werden.

  11. Lateral Translation of Explosion Crater Ejecta: A Working Model Based Upon Pellet Experiments

    DTIC Science & Technology

    1975-08-19

    OMNEIS IOOCT7?I3 I6LR$I4ALE -aUS6IfniCrkFVICLS INCH# CRATER **OIUSIOC).1.661 MEllERS PIM TttE 996 09 Ror SWt v 7*¶16I’ ff3 ---- PREUICT EtLLEI RA.F...229 Set1? -.4711’ 1.q926 2.r,392 .40497 .35 .40!7, -. 19620 I.?qa ",3645 .76 ____ .11 .570 -. P9979 t.r9t P.0,16. .M247- .457 W604 -.?? Ott .044

  12. IL-6 Receptor Isoforms and Ovarian Cancer

    DTIC Science & Technology

    2013-01-01

    previously de- cribed.27 Groups of mice (n 6) were dministered acetyl salicylic acid (ASA; 00 mg/kg; Sigma, St Louis, MO), phos- hate-buffered saline...indicates P .05. SA, acetyl salicylic acid ; IL6R, interleukin-6 receptor. ath. IL-6 receptor in ovarian tumors. Am J Obstet Gynecol 2010. ause they are...tumor cell proper to increase this effect . Published studies examining IL6-/- and IL6R-/- mice demonstrated a complexity of IL6 signaling for wound

  13. Long-term evaluation of benefits, harms, and cost-effectiveness of the National Bowel Cancer Screening Program in Australia: a modelling study.

    PubMed

    Lew, Jie-Bin; St John, D James B; Xu, Xiang-Ming; Greuter, Marjolein J E; Caruana, Michael; Cenin, Dayna R; He, Emily; Saville, Marion; Grogan, Paul; Coupé, Veerle M H; Canfell, Karen

    2017-07-01

    -effective due to the cancer treatment costs averted (cost-effectiveness ratio compared with no screening at current participation, AUS$3014 [95% uncertainty interval 1807-5583] per life-year saved) in the cost-effectiveness analysis. In the budget impact analysis, reduced annual expenditure on colorectal cancer control is expected by 2030, with expenditure reduced by a cumulative AUS$1·7 billion, AUS$2·0 billion, and AUS$2·1 billion (2015 prices) between 2030 and 2040, at participation rates of 40%, 50%, and 60%, respectively. The NBCSP has potential to save 83 800 lives over the period 2015-40 if coverage rates can be increased to 60%. By contrast, the associated harms, although an important consideration, are at a smaller magnitude at the population level. The programme is highly cost-effective and within a decade of full roll-out, there will be reduced annual health systems expenditure on colorectal cancer control due to the impact of screening. Australia Postgraduate Award PhD Scholarship, Translational Cancer Research Network Top-up scholarship (supported by Cancer Institute NSW) and Cancer Council NSW. Copyright © 2017 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY-NC-ND 4.0 license. Published by Elsevier Ltd.. All rights reserved.

  14. PubMed

    Albers, Andreas E; Kaufmann, Andreas M

    2018-05-01

    Zanotti L et al. Epidermal growth factor receptor detection in serum and saliva as a diagnostic and prognostic tool in oral cancer. Laryngoscope 2017; 127: E408–E414 DER EGF-REZEPTOR (EGFR) IST EIN TRANSMEMBRANREZEPTOR MIT INTRINSISCHER TYROSINKINASE-AKTIVITäT, DER IN ALLEN ZELLARTEN VORKOMMT. DIE ÜBEREXPRESSION DES EGFR IST BEI VERSCHIEDENEN TUMORARTEN NACHWEISBAR, SO AUCH BEIM PLATTENEPITHELKARZINOM IM MUNDRAUM (OSCC). DEN DIAGNOSTISCHEN UND PROGNOSTISCHEN WERT DES EGFR BEIM OSCC AUS SERUM UND SPEICHEL BESTIMMTEN ITALIENISCHE ÄRZTE DER UNIVERSITäT VON BRESCIA.

  15. Simulation of Critical Materials Resource Strategies. Volume 4. Appendix D - Data Base through Scenario 47.

    DTIC Science & Technology

    1983-09-13

    CALEt ’,!IA . . 10 0. 9Y2 1. 087 1 -- _ " 24 C .. -7 4 70 2 5 -:91 - TCTAL 021; . 0 COMPOS I TE IMFRTANCE (LC : 2: TIN ACIOUNT % OF C:OM’O’-:I TE I...NE&’ CALET -ONIA D T I 5 G_ J ’I T A M A t4 : ’: ""L L:: ,AUS TRAL I A FYF. ETHFLt 0. 55 FI’_ IFINE’= C:L T FINLANDr.. EN ".. . 1 GREECE .CEL 16 -:W YU

  16. Probleme bei der Digitalisierung analoger Messwerte

    NASA Astrophysics Data System (ADS)

    Plaßmann, Wilfried

    Messwerte liegen häufig in analoger Form als Spannungswerte vor. Sie werden in eine digital kodierte Form umgesetzt, wenn eine (nahezu) fehlerfreie Übertragung erforderlich ist, wenn Signalverläufe gespeichert werden sollen, wenn eine Weiterverarbeitung erfolgen soll oder wenn Messungen mit sehr geringem Messfehler notwendig sind. Hier soll auf einige Probleme, die durch die Umsetzung entstehen, aus messtechnischer Sicht eingegangen werden. Stichworte: Fehler bei der Digitalisierung; Signal-Quantisierungsgeräusch-Abstand; Verbesserung des Signal-Rausch-Verhältnisses; Abtast-Halte-Glied; Aliasing; Erfassung von Momentanwerten.

  17. Nichtkontinuierliche (zeitdiskrete) Signale

    NASA Astrophysics Data System (ADS)

    Plaßmann, Wilfried

    Zeitdiskrete Signale werden häufig aus zeitkontinuierlichen Signalen durch Abtastung erzeugt. Dass beide Signale gleichwertig sind, zeigt das Abtasttheorem (Kap. 116) von Shannon, sofern die Bedingung nach (116.2), f_{ab}≈(2{,}2 {\\ldots} 4)\\cdot fg) eingehalten wird. Digitale Signale haben Vorteile: Einfache Speicherung, Weiterverarbeitung in Rechnern, wenig störanfällige Übertragung. Für die Bearbeitung dieser Signale dienen die im Kapitel dargestellten Hilfsmittel: Diskrete Fouriertransformation; Schnelle Fouriertransformation; z-Transformation: Darstellung, Sätze zur z-Transformation, Korrespondenzen zu Zeitfunktionen, Beispiele.

  18. Kopf

    NASA Astrophysics Data System (ADS)

    Goldschmid, Alfred; Maier, Wolfgang; Olsson, Lennart; Piekarski, Nadine

    Die Evolution des Wirbeltierkopfes ist ein klassisches Problemfeld der vergleichend en Morphologie. Bereits J.W. von Goethe (1749-1832) und L. Oken (1779-1851) vertraten die Idee eines aus Segmenten bestehenden Schädels. Die Segmente sollten umgewandelten Wirbeln entsprechen; später wurden auch die Hirnnerven den segmentalen Spinalnerven des Rumpfes gleichgesetzt — Vorstellungen, die vor allem gegen Ende des 19. Jh. auf massive Ablehnung stießen. Die moderne Entwicklungsbiologie zei gt jedoch, dass zumindest Teile des Kopfes in ihrer Entwicklung eine deutliche Segmentierung aufweisen.

  19. 20,000 In League Under the Sea: Anonymous Communication, Trust, MLATs, and Undersea Cables

    DTIC Science & Technology

    2015-01-01

    5f. WORK UNIT NUMBER 7. PERFORMING ORGANIZATION NAME( S ) AND ADDRESS(ES) Naval Research Laboratory ,Washington,DC,20375 8. PERFORMING ORGANIZATION...versaries that we use here. The first constraint set we use is: – Allow at most one country that directly sees at least 100,000 Gb/ s (i.e., USA , COL, BRA...500,000 Gb/ s (i.e., USA , AUS, CAN, HKG, IND, GBR, BEL, CHE, ESP, DEU, MEX, ITA, UKR, ARG, SVK, BRA, ROU, SVN, ZAF, POL, HUN, GRC, and FRA). – Allow the

  20. Geologic assessment of undiscovered oil and gas resources: Oligocene Frio and Anahuac Formations, United States Gulf of Mexico coastal plain and State waters

    USGS Publications Warehouse

    Swanson, Sharon M.; Karlsen, Alexander W.; Valentine, Brett J.

    2013-01-01

    Tertiary, combined with the reaction kinetic parameters used in the models. A number of studies indicate that the migration of oil and gas in the Cenozoic Gulf of Mexico basin is primarily vertical, occurring along abundant growth faults associated with sediment deposition or along faults associated with salt domes. The USGS Tertiary assessment team developed a geologic model based on recurring regional-scale structural and depositional features in Paleogene strata to define assessment units (AUs). Three general areas, as described in the model, are found in each of the Paleogene stratigraphic intervals assessed: “Stable Shelf,” “Expanded Fault,” and “Slope and Basin Floor” zones. On the basis of this model, three AUs for the Frio Formation were defined: (1) the Frio Stable Shelf Oil and Gas AU, containing reservoirs with a mean depth of about 4,800 feet in normally pressured intervals; (2) the Frio Expanded Fault Zone Oil and Gas AU, containing reservoirs with a mean depth of about 9,000 feet in primarily overpressured intervals; and (3) the Frio Slope and Basin Floor Gas AU, which currently has no production but has potential for deep gas resources (>15,000 feet). AUs also were defined for the Hackberry trend, which consists of a slope facies stratigraphically in the middle part of the Frio Formation, and the Anahuac Formation. The Frio Basin Margin AU, an assessment unit extending to the outcrop of the Frio (or basal Miocene), was not quantitatively assessed because of its low potential for production. Two proprietary, commercially available databases containing field and well production information were used in the assessment. Estimates of undiscovered resources for the five AUs were based on a total of 1,734 reservoirs and 586,500 wells producing from the Frio and Anahuac Formations. Estimated total mean values of technically recoverable, undiscovered resources are 172 million barrels of oil (MMBO), 9.4 trillion cubic feet of natural gas (TCFG), and 542

  1. Examination of commercially available copper oxide wire particles in combination with albendazole for control of gastrointestinal nematodes in lambs.

    PubMed

    Burke, J M; Miller, J E; Terrill, T H; Smyth, E; Acharya, M

    2016-01-15

    Control of gastrointestinal nematodes (GIN) remains a critical issue due to the prevalence of anthelmintic resistance. The objective of the experiment was to determine the efficacy of copper oxide wire particles (COWP) from three commercial sources and a combination of COWP and albendazole to control GIN and/or Haemonchus contortus in lambs. Naturally infected Katahdin lambs in early June 2014 and 2015 were randomly assigned to receive no COWP (CON; n=9 and 12) or 2g COWP in a gel capsule as Copasure(®) (COP; n=4 and 17; Animax Ltd.), copper oxide-wire form (AUS; n=7 in 2014 only; Pharmplex), Ultracruz™ (ULT; n=8 and 15; Santa Cruz Animal Health™), no COWP and albendazole (CON+alb; n=10 in 2015 only; 15mg/kg BW; Valbazen(®); Zoetis Animal Health), or COWP+alb (n=7 and 11; in 2014, lambs were administered alb on day 3). Lambs grazed grass pastures as a group and were supplemented with 227g/lamb daily of a commercial grain mix (15% crude protein) and the same amount of alfalfa pellets. Feces were collected on days 0 (day of COWP treatment), 7, and 14 for determination of fecal egg counts (FEC). Pooled (2014) or pooled treatment group feces were cultured on days 0, 7, and 14 (2015 only) to determine GIN genera. Data were analyzed using repeated measures in a mixed model, and FEC were log transformed. The predominant GIN on day 0 was H. contortus (87%) in 2014, and there was a mixed population in 2015. The mean FEC was reduced by day 7 in AUS and ULT lambs (treatment×day, P=0.001), and all of the COWP products were similar. By day 14, the AUS FEC were lower than the CON and COP groups. When examining the combination of COWP and synthetic anthelmintic, the FEC of COWP+alb were reduced to nearly 0eggs/g (back-transformed) and lower than the other groups (treatment×day, P=0.001). The percentage of H. contortus in cultured feces was reduced to a greater extent in the COWP than CON or CON+alb groups of lambs. In a mixed GIN population, the COWP products appeared to

  2. Cost-effectiveness analysis of repeat fine-needle aspiration for thyroid biopsies read as atypia of undetermined significance.

    PubMed

    Heller, Michael; Zanocco, Kyle; Zydowicz, Sara; Elaraj, Dina; Nayar, Ritu; Sturgeon, Cord

    2012-09-01

    The 2007 National Cancer Institute (NCI) conference on Thyroid Fine-Needle Aspiration (FNA) introduced the category atypia of undetermined significance (AUS) or follicular lesion of undetermined significance (FLUS). Repeat FNA in 3 to 6 months was recommended for low-risk patients. Compliance with these recommendations has been suboptimal. We hypothesized that repeat FNA would be more effective than diagnostic lobectomy, with decreased costs and improved rates of cancer detection. Cost-effectiveness analysis was performed in which we compared diagnostic lobectomy with repeat FNA. A Markov model was developed. Outcomes and probabilities were identified from literature review. Third-party payer costs were estimated in 2010 US dollars. Outcomes were weighted by use of the quality-of-life utility factors, yielding quality-adjusted life years (QALYs). Monte Carlo simulation and sensitivity analysis were used to examine the uncertainty of probability, cost, and utility estimates. The diagnostic lobectomy strategy cost $8,057 and produced 23.99 QALYs. Repeat FNA cost $2,462 and produced 24.05 QALYs. Repeat FNA was dominant until the cost of FNA increased to $6,091. Dominance of the repeat FNA strategy was not sensitive to the cost of operation or the complication rate. The NCI recommendations for repeat FNA regarding follow-up of AUS/FLUS results are cost-effective. Improving compliance with these guidelines should lead to less overall costs, greater quality of life, and fewer unnecessary operations. Copyright © 2012 Mosby, Inc. All rights reserved.

  3. All roads lead to weediness: Patterns of genomic divergence reveal extensive recurrent weedy rice origins from South Asian Oryza.

    PubMed

    Huang, Zhongyun; Young, Nelson D; Reagon, Michael; Hyma, Katie E; Olsen, Kenneth M; Jia, Yulin; Caicedo, Ana L

    2017-06-01

    Weedy rice (Oryza spp.), a weedy relative of cultivated rice (O. sativa), infests and persists in cultivated rice fields worldwide. Many weedy rice populations have evolved similar adaptive traits, considered part of the 'agricultural weed syndrome', making this an ideal model to study the genetic basis of parallel evolution. Understanding parallel evolution hinges on accurate knowledge of the genetic background and origins of existing weedy rice groups. Using population structure analyses of South Asian and US weedy rice, we show that weeds in South Asia have highly heterogeneous genetic backgrounds, with ancestry contributions both from cultivated varieties (aus and indica) and wild rice. Moreover, the two main groups of weedy rice in the USA, which are also related to aus and indica cultivars, constitute a separate origin from that of Asian weeds. Weedy rice populations in South Asia largely converge on presence of red pericarps and awns and on ease of shattering. Genomewide divergence scans between weed groups from the USA and South Asia, and their crop relatives are enriched for loci involved in metabolic processes. Some candidate genes related to iconic weedy traits and competitiveness are highly divergent between some weed-crop pairs, but are not shared among all weed-crop comparisons. Our results show that weedy rice is an extreme example of recurrent evolution, and suggest that most populations are evolving their weedy traits through different genetic mechanisms. © 2017 John Wiley & Sons Ltd.

  4. Asian wild rice is a hybrid swarm with extensive gene flow and feralization from domesticated rice.

    PubMed

    Wang, Hongru; Vieira, Filipe G; Crawford, Jacob E; Chu, Chengcai; Nielsen, Rasmus

    2017-06-01

    The domestication history of rice remains controversial, with multiple studies reaching different conclusions regarding its origin(s). These studies have generally assumed that populations of living wild rice, O. rufipogon , are descendants of the ancestral population that gave rise to domesticated rice, but relatively little attention has been paid to the origins and history of wild rice itself. Here, we investigate the genetic ancestry of wild rice by analyzing a diverse panel of rice genomes consisting of 203 domesticated and 435 wild rice accessions. We show that most modern wild rice is heavily admixed with domesticated rice through both pollen- and seed-mediated gene flow. In fact, much presumed wild rice may simply represent different stages of feralized domesticated rice. In line with this hypothesis, many presumed wild rice varieties show remnants of the effects of selective sweeps in previously identified domestication genes, as well as evidence of recent selection in flowering genes possibly associated with the feralization process. Furthermore, there is a distinct geographical pattern of gene flow from aus , indica , and japonica varieties into colocated wild rice. We also show that admixture from aus and indica is more recent than gene flow from japonica , possibly consistent with an earlier spread of japonica varieties. We argue that wild rice populations should be considered a hybrid swarm, connected to domesticated rice by continuous and extensive gene flow. © 2017 Wang et al.; Published by Cold Spring Harbor Laboratory Press.

  5. Improved Understanding of the Photosynthetic Response of Seven Rice Genotypes with Different Drought Sensitivity using Light and CO2 Response Curves

    NASA Astrophysics Data System (ADS)

    Mitra, B.; Basu, S.; Bereznyakov, D.; Pereira, A.; Naithani, K. J.

    2015-12-01

    Drought across different agro-climatic regions of the world has the capacity to drastically impact the yield potential of rice. Consequently, there is growing interest in developing drought tolerant rice varieties with high yield. We parameterized two photosynthesis models based on light and CO2 response curves for seven different rice genotypes with different drought survival mechanisms: sensitive (Nipponbar, TEJ), resistance (Bengal, TRJ), avoidance by osmotic adjustment (Kaybonnet, TRJ; IRAT177, TRJ; N22, Aus; Vandana, Aus; and O Glabberrima, 316603). All rice genotypes were grown in greenhouse conditions (24 °C ± 3°C air temperature and ~ 600 μmol m-2 s-1 light intensity) with light/dark cycles of 10/14 h in water filled trays simulating flooded conditions. Measurements were conducted on fully grown plants (35 - 60 days old) under simulated flooded and drought conditions. Preliminary results have shown that the drought sensitive genotype, Nipponbare has the lowest photosynthetic carboxylation capacity (Vcmax) and a similar electron transport rate (Jmax) compared to the drought resistant genotype IRAT 177. Mitochondrial respiration (Rd) of all the genotypes were similar while quantum yield of the drought sensitive genotype was greater than that of the drought resistant genotypes. While both drought tolerant and drought sensitive rice genotypes have the same photosynthetic yield, from an irrigation perspective the former would require less 'drop per grain'. This has enormous economic and management implications on account of dwindling water resources across the world due to drought.

  6. No change in the regional distribution of tidal volume during lateral posture in mechanically ventilated patients assessed by electrical impedance tomography

    PubMed Central

    Bein, Thomas; Ploner, Franz; Ritzka, Markus; Pfeifer, Michael; Schlitt, Hans J; Graf, Bernhard M

    2010-01-01

    We assessed the distribution of regional lung ventilation during moderate and steep lateral posture using electrical impedance tomography (EIT) in mechanically ventilated patients. Seven patients were placed on a kinetic treatment table. An elastic belt containing 16 electrodes was placed around the chest and was connected to the EIT device. Patients were moved to left and right lateral positions in a stepwise (10°) mode up to 60°. EIT images [arbitrary units (AU)] were generated and scanned for assessment of relative ventilation distribution changes [tidal volume (VT)]. A calibration procedure of arbitrary units (AUs) versus ventilator-derived VT performed in all patients during three predefined positions (supine, 60°-left dependent and 60°-right-dependent) showed a significant correlation between VT in supine, left and right lateral positions with the corresponding AUs (r2 = 0·356, P<0·05). Changes in VT were calculated and compared to supine position, and specific regions of interest (ROIs) were analysed. In our study, in contrast to recent findings, a change in lateral positions did not induce a significant change in regional tidal volume distribution. In right lateral positions, a broader variation of VT with a trend towards an increase in the dependently positioned lung was observed in comparison with supine. Lateral positioning promotes the redistribution of ventilation to the ventral regions of the lung. The use of EIT technology might become a helpful tool for understanding and guiding posture therapy in mechanically ventilated patients. PMID:20491842

  7. High intraspecific variability of Echinococcus granulosus sensu stricto in Chile.

    PubMed

    Alvarez Rojas, Cristian A; Ebi, Dennis; Paredes, Rodolfo; Acosta-Jamett, Gerardo; Urriola, Nicole; Roa, Juan Carlos; Manterola, Carlos; Cortes, Sandra; Romig, Thomas; Scheerlinck, Jean-Pierre; Lightowlers, Marshall W

    2017-04-01

    Echinococcus granulosus sensu stricto is the major cause of cystic echinococcosis in most human and animal cases in the world and the most widespread species within the E. granulosus sensu lato complex. E. granulosus s.s. remains endemic in South America together with other species of the Echinococcus genus, especially in some areas in Argentina, Brazil, Chile and Peru. Except for a single human case caused by E. canadensis (G6) described in the literature, only E. granulosus s.s. has been found in the Chilean territory. In the current study 1609bp of the cox1 gene from 69 Chilean isolates of E. granulosus s.s. from humans and animals were analysed. In total, 26 cox1 haplotypes were found, including the widespread haplotype EG01 (22 isolates) and also EGp1 (5), EgRUS7 (1), EgAus02 (1) and EgAus03 (2). Twenty-one different haplotype not previously described were identified from 38 Chilean isolates designated EgCL1-EgCL21. Previous work had described low variability of E. granulosus s.s. in South America, based on isolates from Peru. Results obtained in this work challenge the previously described idea of the low diversity of the parasite in South America, and warrant future investigation on the origin and spread of the parasite in the continent after the Spanish arrival. Copyright © 2016. Published by Elsevier B.V.

  8. Face ethnicity and measurement reliability affect face recognition performance in developmental prosopagnosia: evidence from the Cambridge Face Memory Test-Australian.

    PubMed

    McKone, Elinor; Hall, Ashleigh; Pidcock, Madeleine; Palermo, Romina; Wilkinson, Ross B; Rivolta, Davide; Yovel, Galit; Davis, Joshua M; O'Connor, Kirsty B

    2011-03-01

    The Cambridge Face Memory Test (CFMT, Duchaine & Nakayama, 2006) provides a validated format for testing novel face learning and has been a crucial instrument in the diagnosis of developmental prosopagnosia. Yet, some individuals who report everyday face recognition symptoms consistent with prosopagnosia, and are impaired on famous face tasks, perform normally on the CFMT. Possible reasons include measurement error, CFMT assessment of memory only at short delays, and a face set whose ethnicity is matched to only some Caucasian groups. We develop the "CFMT-Australian" (CFMT-Aus), which complements the CFMT-original by using ethnicity better matched to a different European subpopulation. Results confirm reliability (.88) and validity (convergent, divergent using cars, inversion effects). We show that face ethnicity within a race has subtle but clear effects on face processing even in normal participants (includes cross-over interaction for face ethnicity by perceiver country of origin in distinctiveness ratings). We show that CFMT-Aus clarifies diagnosis of prosopagnosia in 6 previously ambiguous cases. In 3 cases, this appears due to the better ethnic match to prosopagnosics. We also show that face memory at short (<3-min), 20-min, and 24-hr delays taps overlapping processes in normal participants. There is some suggestion that a form of prosopagnosia may exist that is long delay only and/or reflects failure to benefit from face repetition. © 2011 Psychology Press, an imprint of the Taylor & Francis Group, an Informa business

  9. Using artificial neural network and satellite data to predict rice yield in Bangladesh

    NASA Astrophysics Data System (ADS)

    Akhand, Kawsar; Nizamuddin, Mohammad; Roytman, Leonid; Kogan, Felix; Goldberg, Mitch

    2015-09-01

    Rice production in Bangladesh is a crucial part of the national economy and providing about 70 percent of an average citizen's total calorie intake. The demand for rice is constantly rising as the new populations are added in every year in Bangladesh. Due to the increase in population, the cultivation land decreases. In addition, Bangladesh is faced with production constraints such as drought, flooding, salinity, lack of irrigation facilities and lack of modern technology. To maintain self sufficiency in rice, Bangladesh will have to continue to expand rice production by increasing yield at a rate that is at least equal to the population growth until the demand of rice has stabilized. Accurate rice yield prediction is one of the most important challenges in managing supply and demand of rice as well as decision making processes. Artificial Neural Network (ANN) is used to construct a model to predict Aus rice yield in Bangladesh. Advanced Very High Resolution Radiometer (AVHRR)-based remote sensing satellite data vegetation health (VH) indices (Vegetation Condition Index (VCI) and Temperature Condition Index (TCI) are used as input variables and official statistics of Aus rice yield is used as target variable for ANN prediction model. The result obtained with ANN method is encouraging and the error of prediction is less than 10%. Therefore, prediction can play an important role in planning and storing of sufficient rice to face in any future uncertainty.

  10. Exploring the validity of HPQ-based presenteeism measures to estimate productivity losses in the health and education sectors.

    PubMed

    Scuffham, Paul A; Vecchio, Nerina; Whiteford, Harvey A

    2014-01-01

    Illness-related presenteeism (suboptimal work performance) may be a significant factor in worker productivity. Until now, there has been no generally accepted best method of measuring presenteeism across different industries and occupations. This study sought to validate the Health and Work Performance Questionnaire (HPQ)-based measure of presenteeism across occupations and industries and assess the most appropriate method for data analysis. . Work performance was measured using the modified version of the HPQ conducted in workforce samples from the education and health workforce in Queensland, Australia (N = 30,870) during 2005 and 2006. Three approaches to data analysis of presenteeism measures were assessed using absolute performance, the ratio of own performance to others' performance, and the difference between others' and own performance. The best measure is judged by its sensitivity to changes in health indicators. . The measure that best correlated to health indicators was absolute presenteeism. For example, in the health sector, correlations between physical health status and absolute presenteeism were 4 to 5 times greater than the ratio or difference approaches, and in the education sector, these correlations were twice as large. Using this approach, the estimated cost of presenteeism in 2006 was $Aus8338 and $Aus8092 per worker per annum for the health and education sectors, respectively. . The HPQ is a valid measure of presenteeism. Transforming responses by perceived performance of peers is unnecessary as absolute presenteeism correlated best with health indicators. Absolute presenteeism was more insightful for ascertaining the cost of presenteeism.

  11. Einsteins Spuren in den Archiven der Wissenschaft: Physikgeschichte

    NASA Astrophysics Data System (ADS)

    Marx, Werner

    2005-07-01

    Die Erwähnungen und Zitierungen von Einsteins Arbeiten dokumentieren lediglich den quantifizierbaren Anteil von Einsteins Beitrag zur Physik. Gleichwohl belegen sie die außergewöhnliche Resonanz und Langzeitwirkung seiner Arbeiten. Die Häufigkeit der Zitierungen entspricht nicht der allgemeinen Einschätzung ihrer Bedeutung. Insbesondere die Pionierarbeiten werden inzwischen als bekannt vorausgesetzt und nicht mehr explizit zitiert. Interessanterweise ist seine nach 1945 meist zitierte Arbeit nicht eine der Pionierarbeiten zur Quantenphysik oder Relativitätstheorie, sondern jene aus dem Jahr 1935 zum berühmten Einstein-Podolsky-Rosen-Paradoxon.

  12. The CSM testbed matrix processors internal logic and dataflow descriptions

    NASA Technical Reports Server (NTRS)

    Regelbrugge, Marc E.; Wright, Mary A.

    1988-01-01

    This report constitutes the final report for subtask 1 of Task 5 of NASA Contract NAS1-18444, Computational Structural Mechanics (CSM) Research. This report contains a detailed description of the coded workings of selected CSM Testbed matrix processors (i.e., TOPO, K, INV, SSOL) and of the arithmetic utility processor AUS. These processors and the current sparse matrix data structures are studied and documented. Items examined include: details of the data structures, interdependence of data structures, data-blocking logic in the data structures, processor data flow and architecture, and processor algorithmic logic flow.

  13. Terror mit Atomwaffen: reale Gefahr? Nukleare und Radiologische Waffen

    NASA Astrophysics Data System (ADS)

    Harigel, Gert G.

    2006-01-01

    Können Terroristen sich nukleare Massenvernichtungswaffen beschaffen? Dazu müssten sie ausreichende Mengen an waffenfähigem, spaltbarem Material stehlen. Selbst der Bau einer primitiven Atombombe erfordert einen hohen technischen Aufwand und Spezialisten. Wahrscheinlicher ist deshalb der Diebstahl einer kleinen taktischen Kernwaffe. Alternativ könnten Terroristen sich radioaktives Material aus zivilen Quellen beschaffen und daraus eine Schmutzige Bombe bauen. Eine solche radiologische Waffe wäre keine echte Massenvernichtungswaffe, doch ihre psychologische Wirkung könnte stark sein. Das macht sie für Terroristen attraktiv, weswegen diese Gefahr ernst genommen werden muss.

  14. Investigation of Methods to Eliminate Voltage Delay in Li/SOCl2 Cells.

    DTIC Science & Technology

    1980-05-01

    of storage at 550C the surface was completely covered with cubic crystals averaging about 8 pim on an edge (Figure 24). The lithium surface stored at...completely covered with cubic crystals, showing no smooth undercoating at all (Figure 25). The average crystal diameter was approximately 3.3 pim , with a...used. ithi timl acgu ire0d A Ci yst al I me surt ace, oil dr n torage at elevated temlper aI Ite t. T[he out lace, showed ch[ ott ine by EPAC except

  15. CHONDRICHTHYES, Knorpelfische

    NASA Astrophysics Data System (ADS)

    Goldschmid, Alfred

    Die über 1.100 Arten der Knorpelfische sind nur etwa 4% aller heute lebenden Fischarten. Ihrknorpeliges Endoskelett kann zwar verkalken, wird abernie zu Knochen umgebaut. Der Schädel besteht nur aus Neurocranium und Viscerocranium, ein Dermatocranium fehlt. Knochen findet sich nur in den Plakoidschuppen der Körperdecke. Eine Schwimmblase wie bei den Knochenfischen wird nie gebildet. Mund- und Nasenöffnungen liegen ventral; der Endolymphgang bleibt zeitlebens mit der Epidermis verbunden. Der mediale Teil der Beckenflosse der Männchen dient als Kopulationsorgan (Mixopterygium, Klasper) (Abb. 208, 209B) bei der inneren Befruchtung.

  16. Characteristics and outcomes of men who fail to leak on intubated urodynamics prior to artificial urinary sphincter placement.

    PubMed

    Weissbart, Steven J; Coutinho, Karl; Chughtai, Bilal; Sandhu, Jaspreet S

    2014-12-01

    To report the characteristics and anti-incontinence outcomes of men who fail to demonstrate incontinence on intubated urodynamics (UDS). From 2005 to 2013, the records of men who underwent UDS prior to artificial urinary sphincter (AUS) were reviewed. The histories, UDS, endoscopies, and anti-incontinence outcomes of men who failed to demonstrate incontinence on intubated UDS were recorded. In our UDS protocol, the urodynamic urethral catheter was removed and the UDS was repeated to elicit incontinence without the urethral catheter. The valsalva leak point pressure (VLPP) was obtained via the rectal catheter in these men. All men were status post radical prostatectomy for prostate cancer. Nineteen percent (32) of the study population (169) had non-demonstrable incontinence on intubated UDS. Mean age at the time of UDS was 62 (range 48-81). All patients demonstrated incontinence on UDS upon removal of the urethral catheter. Their mean VLPP was 79.3 (SD 36.7). Fifty-six percent (18) of these men had an anastomotic stricture (AS) and 37.5% (12) had a history of radiotherapy treatment, of which six also had an AS. Mean pads per day at the time of UDS was 4.6 (SD 2.9). At a mean follow up of 40.7 months (SD 24.7) from AUS placement, mean pads per day was 0.87 (SD 1.2). Men who fail to demonstrate incontinence on intubated UDS have a high rate of AS and history of radiotherapy treatment, which is a known cause for urethra fibrosis and scarring. Regardless, these men can achieve excellent anti-incontinence outcomes.

  17. Kundenfokus: Startpunkt für die digitale Transformation bei Stadtwerken

    NASA Astrophysics Data System (ADS)

    Fett, Perry; Küller, Philipp

    Big Data, Internet der Dinge, Mobile Computing und soziale Medien - die modernen Informationstechnologien durchdringen den Alltag der meisten Menschen und lösen hierdurch eine digitale Transformation aus. Im Unternehmenskontext manifestiert sich die Digitalisierung durch eine neue Qualität der wissensbasierten Entscheidungsunterstützung und der Automatisierung bzw. Autonomisierung der Geschäftsprozesse. Für Stadtwerke gilt es nun, die Chancen der Digitalisierung zu ihren Gunsten zu nutzen. Ein Startpunkt könnte hierbei sein, wie Stadtwerke zukünftig mit ihren Kunden interagieren. Ausgelöst durch die Liberalisierung der Märkte rückt der Kunde heute stärker in den Mittelpunkt - die Energiewirtschaft steht nun vor der Herausforderung, dem Wettbewerb einen Schritt voraus zu sein und dem Kunden ein absolut positives Kundenerlebnis (Customer Experience) sowohl als Maßnahme zur Kundenbindung als auch zum Kundenaufbau zu bieten. Das vorliegende Kapitel zeigt hierfür die Erfolgskriterien für die gelungene Etablierung des Kundenfokus im eigenen Unternehmen auf. Mit dem Customer-Focus-Cycle-Modell von Fujitsu, angelehnt an den Deming-Kreislauf, wird ein allgemeingültiger Ansatz für ein mögliches Vorgehen beim Aufbau des Kundenfokus vorgestellt. Die sechs Phasen werden dabei anhand praktischer Beispiele erläutert und geben zudem Hinweise zu Methoden und Tools. Aus dem vorgestellten "Werkzeugkasten" wird ferner die Customer-Journey-Methode im Detail erläutert. Weiter soll das präsentierte Reifegradmodell Unternehmen dabei unterstützen, den eigenen Status quo festzustellen und die persönlichen Ziele auf dem Weg zur kundenzentrierten Organisation festzulegen.

  18. Assessing the impact of harm reduction programs on law enforcement in Southeast Asia: a description of a regional research methodology.

    PubMed

    Thomson, Nick; Moore, Tim; Crofts, Nick

    2012-07-09

    For over 15 years the Australian Agency for International Development (AusAID) has been a leading donor for harm reduction projects in Southeast Asia. The recent AusAID-supported harm reduction projects of greatest significance have included the Asia Regional HIV/AIDS Project (AHRP), from 2002 until 2007,1 and the HIV/AIDS Asia Regional Program (HAARP), from 2007 until 2015.2 Both projects included in their design specific strategies for engaging with law enforcement agencies at country level. The main focus of these strategies has been to develop law enforcement harm reduction policy and curriculum, and the design and implementation of specific harm reduction training for law enforcement officers.In July 2008, the Australian Development Research Awards (ADRA) funded the Nossal Institute for Global Health at the University of Melbourne to establish a research project created to assess the influence of harm reduction programs on the policy and operational practices of law enforcement agencies in Southeast Asia, known as the LEHRN Project (Law Enforcement, Harm Reduction, Nossal Institute Project). The ADRA is a unique grant research mechanism that specifically funds development research to improve the understanding and informed decision making of the implementation of Australian aid effectiveness.While the need to engage law enforcement when establishing harm reduction programs was well documented, little was known about the impact or influence of harm reduction programs on policy and practices of law enforcement agencies. The LEHRN Project provided the opportunity to assess the impact of harm reduction programs on law enforcement in Southeast Asia, with a focus on Vietnam, Cambodia and Lao PDR.

  19. Population Dynamics Among six Major Groups of the Oryza rufipogon Species Complex, Wild Relative of Cultivated Asian Rice.

    PubMed

    Kim, HyunJung; Jung, Janelle; Singh, Namrata; Greenberg, Anthony; Doyle, Jeff J; Tyagi, Wricha; Chung, Jong-Wook; Kimball, Jennifer; Hamilton, Ruaraidh Sackville; McCouch, Susan R

    2016-12-01

    Understanding population structure of the wild progenitor of Asian cultivated rice (O. sativa), the Oryza rufipogon species complex (ORSC), is of interest to plant breeders and contributes to our understanding of rice domestication. A collection of 286 diverse ORSC accessions was evaluated for nuclear variation using genotyping-by-sequencing (113,739 SNPs) and for chloroplast variation using Sanger sequencing (25 polymorphic sites). Six wild subpopulations were identified, with 25 % of accessions classified as admixed. Three of the wild groups were genetically and geographically closely related to the O. sativa subpopulations, indica, aus and japonica, and carried O. sativa introgressions; the other three wild groups were genetically divergent, had unique chloroplast haplotypes, and were located at the geographical extremes of the species range. The genetic subpopulations were significantly correlated (r 2  = 0.562) with traditional species designations, O. rufipogon (perennial) and O. nivara (annual), differentiated based on morphology and life history. A wild diversity panel of 95 purified (inbred) accessions was developed for future genetic studies. Our results suggest that the cultivated aus subpopulation is most closely related to an annual wild relative, japonica to a perennial wild relative, and indica to an admixed population of diverse annual and perennial wild ancestors. Gene flow between ORSC and O. sativa is common in regions where rice is cultivated, threatening the identity and diversity of wild ORSC populations. The three geographically isolated ORSC populations harbor variation rarely seen in cultivated rice and provide a unique window into the genetic composition of ancient rice subpopulations.

  20. Analyse der pharmazeutischen Versorgungssituation von Patienten mit Psoriasis-Arthritis auf Basis von Routinedaten der Gesetzlichen Krankenversicherung.

    PubMed

    Sondermann, Wiebke; Ventzke, Julia; Matusiewicz, David; Körber, Andreas

    2018-03-01

    Die Psoriasis-Arthritis (PsA) gehört zu den chronisch entzündlichen Gelenkerkrankungen. Trotz zahlreicher versorgungswissenschaftlicher Studien in Deutschland liegen zur pharmazeutischen Versorgungssituation von PsA-Patienten bisher kaum aktuelle Ergebnisse vor. Mit Hilfe einer systematischen Literaturrecherche sowie anhand von Routinedaten der Allgemeinen Ortskrankenkasse (AOK) Rheinland/Hamburg wird ein aktueller Überblick über die pharmazeutische Versorgung von PsA-Patienten in Deutschland gegeben. Selektiert wurden Versicherte aus dem ambulanten und stationären Bereich, die im 1. und 2. Quartal des Jahres 2014 die gesicherte Abrechnungsdiagnose Psoriasis-Arthritis L40.5+ aufwiesen. Anschließend wurden auf Basis dieser "vorab definierten" Kohorte die Arzneimitteldaten für 5 Jahre (01.01.2010-31.12.2014) abgerufen. Es konnten insgesamt n  =  3205 Versicherte (45 % männlich, 55 % weiblich) der AOK Rheinland/Hamburg mit einer gesicherten PsA-Diagnose selektiert werden. Das Durchschnittsalter betrug 58,9 Jahre. 53,7 % der PsA-Patienten wurden mit systemischen PsA-relevanten Arzneimitteln versorgt. Nichtsteroidale Antirheumatika (NSAR) wurden am häufigsten verordnet, gefolgt von systemischen Glucocorticoiden. Von den selektierten PsA-Patienten, die eine Systemtherapie erhielten, wurden 72,1 % mittels einer Disease-modifying-antirheumatic-Drug (DMARD)-Monotherapie behandelt, gefolgt von der Kombinationstherapie aus DMARDs und Biologika (20,9 %). Die pharmakologische Therapie der PsA muss eine Gewährleistung zwischen adäquater Versorgung der PsA mit Verhinderung der Krankheitsprogression und ökonomischer Verantwortung darstellen. © 2018 Deutsche Dermatologische Gesellschaft (DDG). Published by John Wiley & Sons Ltd.

  1. No change in the regional distribution of tidal volume during lateral posture in mechanically ventilated patients assessed by electrical impedance tomography.

    PubMed

    Bein, Thomas; Ploner, Franz; Ritzka, Markus; Pfeifer, Michael; Schlitt, Hans J; Graf, Bernhard M

    2010-07-01

    We assessed the distribution of regional lung ventilation during moderate and steep lateral posture using electrical impedance tomography (EIT) in mechanically ventilated patients. Seven patients were placed on a kinetic treatment table. An elastic belt containing 16 electrodes was placed around the chest and was connected to the EIT device. Patients were moved to left and right lateral positions in a stepwise (10 degrees ) mode up to 60 degrees. EIT images [arbitrary units (AU)] were generated and scanned for assessment of relative ventilation distribution changes [tidal volume (V(T))]. A calibration procedure of arbitrary units (AUs) versus ventilator-derived V(T) performed in all patients during three predefined positions (supine, 60 degrees-left dependent and 60 degrees-right-dependent) showed a significant correlation between V(T) in supine, left and right lateral positions with the corresponding AUs (r(2) = 0.356, P<0.05). Changes in V(T) were calculated and compared to supine position, and specific regions of interest (ROIs) were analysed. In our study, in contrast to recent findings, a change in lateral positions did not induce a significant change in regional tidal volume distribution. In right lateral positions, a broader variation of V(T) with a trend towards an increase in the dependently positioned lung was observed in comparison with supine. Lateral positioning promotes the redistribution of ventilation to the ventral regions of the lung. The use of EIT technology might become a helpful tool for understanding and guiding posture therapy in mechanically ventilated patients.

  2. Confidence Preserving Machine for Facial Action Unit Detection

    PubMed Central

    Zeng, Jiabei; Chu, Wen-Sheng; De la Torre, Fernando; Cohn, Jeffrey F.; Xiong, Zhang

    2016-01-01

    Facial action unit (AU) detection from video has been a long-standing problem in automated facial expression analysis. While progress has been made, accurate detection of facial AUs remains challenging due to ubiquitous sources of errors, such as inter-personal variability, pose, and low-intensity AUs. In this paper, we refer to samples causing such errors as hard samples, and the remaining as easy samples. To address learning with the hard samples, we propose the Confidence Preserving Machine (CPM), a novel two-stage learning framework that combines multiple classifiers following an “easy-to-hard” strategy. During the training stage, CPM learns two confident classifiers. Each classifier focuses on separating easy samples of one class from all else, and thus preserves confidence on predicting each class. During the testing stage, the confident classifiers provide “virtual labels” for easy test samples. Given the virtual labels, we propose a quasi-semi-supervised (QSS) learning strategy to learn a person-specific (PS) classifier. The QSS strategy employs a spatio-temporal smoothness that encourages similar predictions for samples within a spatio-temporal neighborhood. In addition, to further improve detection performance, we introduce two CPM extensions: iCPM that iteratively augments training samples to train the confident classifiers, and kCPM that kernelizes the original CPM model to promote nonlinearity. Experiments on four spontaneous datasets GFT [15], BP4D [56], DISFA [42], and RU-FACS [3] illustrate the benefits of the proposed CPM models over baseline methods and state-of-the-art semisupervised learning and transfer learning methods. PMID:27479964

  3. Using Computerized Cytomorphometry to Distinguish between Benign and Malignant Cases in Thyroid Fine-Needle Aspiration Cytology.

    PubMed

    Celik, Zeliha Esin; Altinay, Serdar; Kilinc, Fahriye; Arslan, Nur; Yilmaz, Burcu Sanal; Karabagli, Pınar; Ugurluoglu, Ceyhan

    2016-11-01

    Only a small number of studies on computerized cytomorphometry have been performed for thyroid FNAC. The present study aimed to determine the usefulness of computerized cytomorphometry methods to further classify thyroid lesions as benign or malignant and to compare the practicability and value of using Papanicolaou (Pap) and Giemsa stains in thyroid FNAC by evaluating their association to various cytologic nuclear parameters. Fifty-eight thyroid lesions diagnosed by FNAC and categorized according to the Bethesda system for reporting thyroid cytopathology were evaluated in terms of various cytologic nuclear parameters, including nuclear area (NA), nuclear perimeter (NP), nuclear density (ND), long nuclear diameter (LND), and short nuclear diameter (SND). The Pap- and Giemsa-stained slides were examined separately. In the malignant cases, NA, NP, LND, and SND were higher than in the benign cases for both the Pap and Giemsa stains. NA, NP, LND, and SND were higher in Giemsa than Pap for both the benign and malignant groups. Statistically significant differences were detected between the benign and malignant cases in the AUS category. Computerized cytomorphometry is useful in distinguishing between benign and malignant lesions in thyroid FNAC. The measurement of cytologic nuclear parameters in cases suggestive of AUS may be useful for the probable classification of cases as benign or malignant. Although further studies are needed, in nuclear morphometric assessment of thyroid FNAC, Giemsa staining may be more useful and valuable than the Pap stain because of its association with various cytologic nuclear parameters. Diagn. Cytopathol. 2016;44:902-911. © 2016 Wiley Periodicals, Inc. © 2016 Wiley Periodicals, Inc.

  4. New Geodetic Infrastructure for Australia: The NCRIS / AuScope Geospatial Component

    NASA Astrophysics Data System (ADS)

    Tregoning, P.; Watson, C. S.; Coleman, R.; Johnston, G.; Lovell, J.; Dickey, J.; Featherstone, W. E.; Rizos, C.; Higgins, M.; Priebbenow, R.

    2009-12-01

    In November 2006, the Australian Federal Government announced AUS15.8M in funding for geospatial research infrastructure through the National Collaborative Research Infrastructure Strategy (NCRIS). Funded within a broader capability area titled ‘Structure and Evolution of the Australian Continent’, NCRIS has provided a significant investment across Earth imaging, geochemistry, numerical simulation and modelling, the development of a virtual core library, and geospatial infrastructure. Known collectively as AuScope (www.auscope.org.au), this capability area has brought together Australian’s leading Earth scientists to decide upon the most pressing scientific issues and infrastructure needs for studying Earth systems and their impact on the Australian continent. Importantly and at the same time, the investment in geospatial infrastructure offers the opportunity to raise Australian geodetic science capability to the highest international level into the future. The geospatial component of AuScope builds onto the AUS15.8M of direct funding through the NCRIS process with significant in-kind and co-investment from universities and State/Territory and Federal government departments. The infrastructure to be acquired includes an FG5 absolute gravimeter, three gPhone relative gravimeters, three 12.1 m radio telescopes for geodetic VLBI, a continent-wide network of continuously operating geodetic quality GNSS receivers, a trial of a mobile SLR system and access to updated cluster computing facilities. We present an overview of the AuScope geospatial capability, review the current status of the infrastructure procurement and discuss some examples of the scientific research that will utilise the new geospatial infrastructure.

  5. The performance and customization of SAPS 3 admission score in a Thai medical intensive care unit.

    PubMed

    Khwannimit, Bodin; Bhurayanontachai, Rungsun

    2010-02-01

    The aim of this study was to evaluate the performance of Simplified Acute Physiology Score 3 (SAPS 3) admission scores, both the original and a customized version, in mixed medical critically ill patients. A prospective cohort study was conducted over a 2-year period in the medical intensive care unit (MICU) of a tertiary referral university teaching hospital in Thailand. The probability of hospital mortality of the original SAPS 3 was calculated using the general and customized Australasia version (SAPS 3-AUS). The patients were randomly divided into equal calibration and validation groups for customization. A total of 1,873 patients were enrolled. The hospital mortality rate was 28.6%. The general equation of SAPS 3 had excellent discrimination with an area under the receiver operating characteristic curve of 0.933, but poor calibration with the Hosmer-Lemeshow goodness-of-fit H = 106.7 and C = 101.2 (P < 0.001), and it overestimated mortality with a standardized mortality ratio of 0.86 (95% confidence interval, 0.79-0.93). The calibration of SAPS 3-AUS was also poor. The customized SAPS 3 showed a good calibration of all patients in the validation group (H = 14, P = 0.17 and C = 11.3, P = 0.33) and all subgroups according to main diagnosis, age, gender and co-morbidities. The SAPS 3 provided excellent discrimination but poor calibration in our MICU. A first level customization of the SAPS 3 improved the calibration and could be used to predict mortality and quality assessment in our ICU or other ICUs with a similar case mix.

  6. Recreational Anabolic-Androgenic Steroid Use Associated With Liver Injuries Among Brazilian Young Men.

    PubMed

    Schwingel, Paulo Adriano; Cotrim, Helma Pinchemel; Santos, Crimério Ribeiro dos; Santos, Adriano Oliveira dos; Andrade, Antônio Ricardo Cardia Ferraz de; Carruego, Marcos Vinicius Vilas Boas; Zoppi, Cláudio Cesar

    2015-01-01

    The recreational use of anabolic-androgenic steroids (AAS) has reached alarming levels among healthy people. However, several complications have been related to consumption of these drugs, including liver disorders. To evaluate the prevalence of liver injuries in young Brazilian recreational AAS users. Between February/2007 and May/2012 asymptomatic bodybuilders who were ≥18 years old and reported AAS use for ≥6 months were enrolled. All had clinical evaluations, abdominal ultrasound (AUS), and blood tests. 182 individuals were included in the study. The median age (interquartile range) was 26.0 years (22.0-30.0) and all were male. Elevated liver enzyme levels were observed in 38.5% (n = 70) of AAS users, and creatine phosphokinase was normal in 27.1% (n = 19) of them. Hepatic steatosis was observed by AUS in 12.1% of the sample. One individual had focal nodular hyperplasia and another had hepatocellular adenoma. One case each of hepatitis B and C virus infection was found. A diagnosis of toxic liver injury was suggested in 23 (12.6%) AAS users without a history of alcohol or other medications/drugs consumption, or evidence of other liver diseases. Young Brazilian recreational AAS users presented a wide spectrum of liver injuries that included hepatotoxicity, fatty liver, and liver neoplasm. They also presented risk factors for liver diseases such as alcohol consumption and hepatitis B and C virus infection. The results suggest that the risk of AAS use for the liver may be greater than the esthetic benefits, and demonstrate the importance of screening AAS users for liver injuries.

  7. Internal Medicine in World War 2. Volume 1. Activities of Medical Consultants

    DTIC Science & Technology

    1961-01-01

    8217 Administration, Washington, D.C. (on leave of absence from University of Wisconsin Medical School, Madison , Wis.). Formerly Colonel, MC, AUS. HUGmH J MORGAN...4i 0) 400: .W 42 uW C- 1 .., imEI)rEIIIANEAN THEATER IS7 lKwoile clear t hat tilie M\\ edical Sect ion, AFI’IQ. b~ecauise or its p)osit ion lit tlie( th... UW AIIzIt C. i’’vh jiary ill :i rmiti), I Wiw),). New NYoTk: The NInacM~illan Co.. 194. p. ~ 5 EUROPEAN THEATER OF OP1ERATIONS, 36:3 linust ion

  8. Zweitore, Vierpole

    NASA Astrophysics Data System (ADS)

    Plaßmann, Wilfried

    Zweitore (nach DIN 4899; alte Bezeichnung "Vierpole") sind Funktionseinheiten mit zwei Toren, wobei zu jedem Tor ein Klemmenpaar gehört. An eines der Tore wird das Eingangssignal angeschlossen, die zugehörigen Anschlüsse werden mit Eingangsklemmen bezeichnet. Entsprechend wird an den zwei Ausgangsklemmen das Ausgangssignal abgegriffen. Eventuell erforderliche Anschlüsse für eine Stromversorgung werden nicht mitgezählt. Der interne Aufbau besteht aus einer beliebigen Zusammenschaltung von Widerständen, Kondensatoren, Spulen, Transformatoren, Dioden, Transistoren usw. Es wird vorausgesetzt, dass die Zweitore zeitinvariant sind, d. h. die Eigenschaften hängen nicht von der Zeit ab.

  9. Analytische Geometrie

    NASA Astrophysics Data System (ADS)

    Kemnitz, Arnfried

    Der Grundgedanke der Analytischen Geometrie besteht darin, dass geometrische Untersuchungen mit rechnerischen Mitteln geführt werden. Geometrische Objekte werden dabei durch Gleichungen beschrieben und mit algebraischen Methoden untersucht. Behandelt werden folgende Themen: Koordinatensysteme: Kartesisches Koordinatensystem der Ebene und des Raumes, Polarkoordinatensystem der Ebene, Zusammenhang zwischen kartesischen und Polarkoordinaten; Geraden: Geradengleichungen, Abstände von Geraden; Kreise: Kreisgleichungen, Kreisberechnungen; Kugeln; Kegelschnitte; Ellipsen; Hyperbeln; Parabeln; Anwendungen von Kegelschnitten aus Technik und Mathematik; Vektoren: Definitionen, Addition, Multiplikation, Komponentendarstellung in der Ebene und im Raum, Skalarprodukt, Vektorprodukt. Zu den einzelnen Themenkreisen sind Beispiele aufgeführt. Wichtige Regeln und Gesetze sind durch Umrandung besonders kenntlich gemacht.

  10. Herausforderungen durch die deutsche Wiedervereinigung

    NASA Astrophysics Data System (ADS)

    Stäglin, Reiner

    Die Wiedervereinigung stellte auch die Statistik vor große Aufgaben. Die als Organ der staatlichen Planung staatsnah orientierte Statistik der DDR musste auf das zur Neutralität und wissenschaftlichen Unabhängigkeit verpflichtete System der Bundesrepublik umgestellt werden. Ebenso verlangten die Universitäten eine Neuorientierung. Die Deutsche Statistische Gesellschaft hat sich vor allem dreier Aufgaben mit großem Engagement, aber auch mit Bedachtsamkeit angenommen: Aufnahme und Integration der Statistiker aus den neuen Bundesländern in die Gesellschaft, Begleitung der Neuausrichtung des Faches Statistik an deren Hochschulen und Sicherung sowie Nutzung von Datenbeständen der ehemaligen DDR.

  11. A modified form of conjugate gradient method for unconstrained optimization problems

    NASA Astrophysics Data System (ADS)

    Ghani, Nur Hamizah Abdul; Rivaie, Mohd.; Mamat, Mustafa

    2016-06-01

    Conjugate gradient (CG) methods have been recognized as an interesting technique to solve optimization problems, due to the numerical efficiency, simplicity and low memory requirements. In this paper, we propose a new CG method based on the study of Rivaie et al. [7] (Comparative study of conjugate gradient coefficient for unconstrained Optimization, Aus. J. Bas. Appl. Sci. 5(2011) 947-951). Then, we show that our method satisfies sufficient descent condition and converges globally with exact line search. Numerical results show that our proposed method is efficient for given standard test problems, compare to other existing CG methods.

  12. Sternbilder und ihre Mythen

    NASA Astrophysics Data System (ADS)

    Fasching, Gerhard

    Die Sternbilder und die damit verbundenen Mythen helfen, sich am Sternenhimmel zurechtzufinden und vermitteln die Vielfalt der Bilder der Mythologie und der Sternsagen. Sternkarten und alte Kupferstiche aus dem Bestand der Österreichischen Nationalbibliothek zeigen, wie man sich in früheren Jahrhunderten den Sternenhimmel vorgestellt hat. Ausführliche Sachverzeichnisse mit über 3000 Suchbegriffen erleichtern den Zugang zu Stern- und Sternbildnamen und zur Mythologie. Die dritte, erweiterte Auflage gibt für die kommenden Jahrzehnte darüber Auskunft, wo und wann die Planeten aber auch Sternhaufen, Gasnebel und Galaxien am Himmel mühelos aufgefunden werden können.

  13. Psychosocial stress predicts abnormal glucose metabolism: the Australian Diabetes, Obesity and Lifestyle (AusDiab) study.

    PubMed

    Williams, Emily D; Magliano, Dianna J; Tapp, Robyn J; Oldenburg, Brian F; Shaw, Jonathan E

    2013-08-01

    The evidence supporting a relationship between stress and diabetes has been inconsistent. This study examined the effects of stress on abnormal glucose metabolism, using a population-based sample of 3,759, with normoglycemia at baseline, from the Australian Diabetes, Obesity and Lifestyle study. Perceived stress and stressful life events were measured at baseline, with health behavior and anthropometric information also collected. Oral glucose tolerance tests were undertaken at baseline and 5-year follow-up. The primary outcome was the development of abnormal glucose metabolism (impaired fasting glucose, impaired glucose tolerance, and type 2 diabetes), according to WHO 1999 criteria. Perceived stress predicted incident abnormal glucose metabolism in women but not men, after multivariate adjustment. Life events showed an inconsistent relationship with abnormal glucose metabolism. Perceived stress predicted abnormal glucose metabolism in women. Healthcare professionals should consider psychosocial adversity when assessing risk factor profiles for the development of diabetes.

  14. Plentern mit Kiefern--Ergebnisse aus den USA [Plentering with pines--results from the United States

    Treesearch

    James M. Guldin; Don C. Bragg; Andreas Zingg

    2017-01-01

    Until now, scientifically reliable data on plentering of light-demanding tree species in Europe have been lacking. This gap is filled with long-term trials from the USA, among others with southern yellow pines. In the southern state of Arkansas, two plots of 16 hectares were installed in 1936, in the context of a large-scale trial of mixed loblolly pine (...

  15. Assessing the impact of harm reduction programs on law enforcement in Southeast Asia: a description of a regional research methodology

    PubMed Central

    2012-01-01

    For over 15 years the Australian Agency for International Development (AusAID) has been a leading donor for harm reduction projects in Southeast Asia. The recent AusAID-supported harm reduction projects of greatest significance have included the Asia Regional HIV/AIDS Project (AHRP), from 2002 until 2007,1 and the HIV/AIDS Asia Regional Program (HAARP), from 2007 until 2015.2 Both projects included in their design specific strategies for engaging with law enforcement agencies at country level. The main focus of these strategies has been to develop law enforcement harm reduction policy and curriculum, and the design and implementation of specific harm reduction training for law enforcement officers. In July 2008, the Australian Development Research Awards (ADRA) funded the Nossal Institute for Global Health at the University of Melbourne to establish a research project created to assess the influence of harm reduction programs on the policy and operational practices of law enforcement agencies in Southeast Asia, known as the LEHRN Project (Law Enforcement, Harm Reduction, Nossal Institute Project). The ADRA is a unique grant research mechanism that specifically funds development research to improve the understanding and informed decision making of the implementation of Australian aid effectiveness. While the need to engage law enforcement when establishing harm reduction programs was well documented, little was known about the impact or influence of harm reduction programs on policy and practices of law enforcement agencies. The LEHRN Project provided the opportunity to assess the impact of harm reduction programs on law enforcement in Southeast Asia, with a focus on Vietnam, Cambodia and Lao PDR. PMID:22769050

  16. Infrequent Reservoir-Related Complications of Urologic Prosthetics: A Case Series and Literature Review.

    PubMed

    Cui, Tao; Terlecki, Ryan; Mirzazadeh, Majid

    2015-12-01

    Complications related to inflatable penile prosthesis (IPP) and artificial urinary sphincter (AUS) reservoirs are rare, potentially life threatening, and poorly described in the literature. As more devices are implanted, the incidence of reservoir-related complications may increase, and it will be important to recognize the relevant signs and symptoms. We present a case series of reservoir-related complications presenting to our institution for treatment. We also reviewed all accounts of reservoir-related complications within the urologic literature. Three cases of reservoir-related complications are presented. Case 1 involves erosion of an intact AUS reservoir into the cecum of a patient with a history of myelomeningocele and bladder augmentation. Case 2 involves an IPP reservoir causing vascular compression, resulting in open exploration and repositioning of the reservoir. Case 3 involves intraperitoneal migration of a retained IPP reservoir to a subhepatic area, which was then removed laparoscopically. Literature review yielded descriptions of eight cases of intestinal complications, five cases of vascular complications, but zero reports of migration to a subhepatic area. Other notable complications include 20 reported cases of reservoir erosion into the bladder and inguinal herniation of the reservoir. Complications involving urologic prosthesis reservoirs, although rare, can have serious implications for patients. A high index of suspicion and familiarity with treatment options is required in order to allow timely diagnosis and appropriate treatment. Patients with prior major abdominal surgeries seem to be more prone to intestinal complications of reservoirs and warrant special concern. Cui T, Terlecki R, and Mirzazadeh M. Infrequent reservoir-related complications of urologic prosthetics: A case series and literature review. Sex Med 2015;3:334-338.

  17. Assessment of undiscovered oil and gas resources of the Devonian Marcellus Shale of the Appalachian Basin Province

    USGS Publications Warehouse

    Coleman, James L.; Milici, Robert C.; Cook, Troy A.; Charpentier, Ronald R.; Kirshbaum, Mark; Klett, Timothy R.; Pollastro, Richard M.; Schenk, Christopher J.

    2011-01-01

    Using a geology-based assessment methodology, the U.S. Geological Survey (USGS) estimated a mean undiscovered natural gas resource of 84,198 billion cubic feet and a mean undiscovered natural gas liquids resource of 3,379 million barrels in the Devonian Marcellus Shale within the Appalachian Basin Province. All this resource occurs in continuous accumulations. In 2011, the USGS completed an assessment of the undiscovered oil and gas potential of the Devonian Marcellus Shale within the Appalachian Basin Province of the eastern United States. The Appalachian Basin Province includes parts of Alabama, Georgia, Kentucky, Maryland, New York, Ohio, Pennsylvania, Tennessee, Virginia, and West Virginia. The assessment of the Marcellus Shale is based on the geologic elements of this formation's total petroleum system (TPS) as recognized in the characteristics of the TPS as a petroleum source rock (source rock richness, thermal maturation, petroleum generation, and migration) as well as a reservoir rock (stratigraphic position and content and petrophysical properties). Together, these components confirm the Marcellus Shale as a continuous petroleum accumulation. Using the geologic framework, the USGS defined one TPS and three assessment units (AUs) within this TPS and quantitatively estimated the undiscovered oil and gas resources within the three AUs. For the purposes of this assessment, the Marcellus Shale is considered to be that Middle Devonian interval that consists primarily of shale and lesser amounts of bentonite, limestone, and siltstone occurring between the underlying Middle Devonian Onondaga Limestone (or its stratigraphic equivalents, the Needmore Shale and Huntersville Chert) and the overlying Middle Devonian Mahantango Formation (or its stratigraphic equivalents, the upper Millboro Shale and middle Hamilton Group).

  18. Titanisierung von Implantatoberflächen

    NASA Astrophysics Data System (ADS)

    Zimmermann, Hanngörg; Heinlein, Markus; Guldner, Norbert W.

    Titan gilt seit Jahrzehnten als einer der wichtigsten Implantatwerkstoffe in der Medizin. Neben den guten mechanischen Eigenschaften (Leichtigkeit, hohe Festigkeit etc.), besitzen Titanimplantate vor allem eine hervorragende Körperverträglichkeit, so dass die Implantate optimal in den humanen Organismus integriert werden [1]. Ist jedoch aufgrund der Anforderungen an das Implantat eine hohe Flexibilität und/ oder Elastizität gefragt, so scheidet der Werkstoff Titan aufgrund seiner spröden und unflexiblen Materialeigenschaften aus. Die Folge ist der Einsatz von Implantatmaterialien, sowohl künstlichen als auch biologischen Ursprungs, welche nicht selten eine unzureichende Biokompatibilität aufweisen und somit zu Fremdköper- und immunologischen Reaktionen und Einkapselung des Implantates führen können. Die Erhöhung der Körperverträglichkeit, eine Adaption an das biologische Umfeld und eine hohe Biokompatibilität sind demzufolge die wichtigsten Eigenschaften bei der bedarfsgerechten Herstellung von Implantaten und Implantatoberflächen. Zur Gestaltung von innovativen, biokompatiblen Oberflächen stehen unterschiedliche technische Lösungsansätze zur Verfügung. Zum einen besteht die Möglichkeit, geeignete Oberflächeneigenschaften aus dem Grundmaterial selbst zu optimieren. Dies geschieht unter anderem durch Modifikation der Werkstoffoberflächen in Form von Texturierungen und Oberflächenrauhigkeiten. Zum anderen können die Oberflächeneigenschaften unabhängig von denen des Trägermaterials gestaltet werden. Durch Funktionalisierung der Oberflächen mit geeigneten Beschichtungen oder der Zugabe von Medikamenten (Drug Eluting) werden die Kunststoffimplantate dahingehend verändert, dass eine Steigerung der Körperakzeptanz erreicht wird. Die Titanbeschichtung von Implantatoberflächen kombiniert die positiven Materialeigenschaften von Titan und Polymer.

  19. National study of utilization of male incontinence procedures.

    PubMed

    Chughtai, Bilal; Sedrakyan, Art; Isaacs, Abby J; Mao, Jialin; Lee, Richard; Te, Alexis; Kaplan, Steven

    2016-01-01

    We explored re-interventions and short and long term adverse events associated with procedures for male incontinence among Medicare beneficiaries. All inpatient and outpatient claims for a simple random sample of Medicare beneficiaries for 2000-2011 were queried to identify patients of interest. All male patients with an International Classification of Diseases, 9th Edition (ICD-9) diagnosis code for stress incontinence or mixed incontinence were included. Artificial urinary sphincter recipients, patients who underwent a sling operation and those receiving an injection of a bulking agent were identified with Current Procedure Terminology (CPT-4) and ICD-9 Procedure Codes. The entire cohort of 1,246 patients were operated on between 2001 and 2011. 34.9% of them received an artificial urinary sphincter (AUS), 28.7% with a bulking agent, and 36.4% with a sling. There were no statistically significant differences in demographics or comorbidities between the treatment groups, except that more sling patients were obese (P = 0.006) and fewer bulk patients had diabetes (P = 0.007). There are, however, significant changes in procedures selected over time (P < 0.001). In the first year and over the entire follow-up after surgery, patients treated with bulking agents had the most subsequent interventions (40.1% and 52.9%), followed by sling (10.4% and 15.5%), and AUS (2.3% and 20%) (P < 0.001). Post-operative and 90 day complications were low. All three treatments seem to be safe among Medicare beneficiaries with multiple comorbidities. The urological, infectious, and neurological complication occurrences were low. © 2014 Wiley Periodicals, Inc.

  20. Properties of the gold-sulphur interface: from self-assembled monolayers to clusters.

    PubMed

    Bürgi, Thomas

    2015-10-14

    The gold-sulphur interface of self-assembled monolayers (SAMs) was extensively studied some time ago. More recently tremendous progress has been made in the preparation and characterization of thiolate-protected gold clusters. In this feature article we address different properties of the two systems such as their structure, the mobility of the thiolates on the surface and other dynamical aspects, the chirality of the structures and characteristics related to it and their vibrational properties. SAMs and clusters are in the focus of different communities that typically use different experimental approaches to study the respective systems. However, it seems that the nature of the Au-S interfaces in the two cases is quite similar. Recent single crystal X-ray structures of thiolate-protected gold clusters reveal staple motifs characterized by gold ad-atoms sandwiched between two sulphur atoms. This finding contradicts older work on SAMs. However, newer studies on SAMs also reveal ad-atoms. Whether this finding can be generalized remains to be shown. In any case, more and more studies highlight the dynamic nature of the Au-S interface, both on flat surfaces and in clusters. At temperatures slightly above ambient thiolates migrate on the gold surface and on clusters. Evidence for desorption of thiolates at room temperature, at least under certain conditions, has been demonstrated for both systems. The adsorbed thiolate can lead to chirality at different lengths scales, which has been shown both on surfaces and for clusters. Chirality emerges from the organization of the thiolates as well as locally at the molecular level. Chirality can also be transferred from a chiral surface to an adsorbate, as evidenced by vibrational spectroscopy.

  1. Properties of the gold-sulphur interface: from self-assembled monolayers to clusters

    NASA Astrophysics Data System (ADS)

    Bürgi, Thomas

    2015-09-01

    The gold-sulphur interface of self-assembled monolayers (SAMs) was extensively studied some time ago. More recently tremendous progress has been made in the preparation and characterization of thiolate-protected gold clusters. In this feature article we address different properties of the two systems such as their structure, the mobility of the thiolates on the surface and other dynamical aspects, the chirality of the structures and characteristics related to it and their vibrational properties. SAMs and clusters are in the focus of different communities that typically use different experimental approaches to study the respective systems. However, it seems that the nature of the Au-S interfaces in the two cases is quite similar. Recent single crystal X-ray structures of thiolate-protected gold clusters reveal staple motifs characterized by gold ad-atoms sandwiched between two sulphur atoms. This finding contradicts older work on SAMs. However, newer studies on SAMs also reveal ad-atoms. Whether this finding can be generalized remains to be shown. In any case, more and more studies highlight the dynamic nature of the Au-S interface, both on flat surfaces and in clusters. At temperatures slightly above ambient thiolates migrate on the gold surface and on clusters. Evidence for desorption of thiolates at room temperature, at least under certain conditions, has been demonstrated for both systems. The adsorbed thiolate can lead to chirality at different lengths scales, which has been shown both on surfaces and for clusters. Chirality emerges from the organization of the thiolates as well as locally at the molecular level. Chirality can also be transferred from a chiral surface to an adsorbate, as evidenced by vibrational spectroscopy.

  2. Lobular breast cancers lack the inverse relationship between ER/PR status and cell growth rate characteristic of ductal cancers in two independent patient cohorts: implications for tumor biology and adjuvant therapy.

    PubMed

    Wong, Hilda; Lau, Silvia; Cheung, Polly; Wong, Ting Ting; Parker, Andrew; Yau, Thomas; Epstein, Richard J

    2014-11-10

    Although invasive lobular carcinoma (ILC) of the breast differs from invasive ductal carcinoma (IDC) in numerous respects - including its genetics, clinical phenotype, metastatic pattern, and chemosensitivity - most experts continue to manage ILC and IDC identically in the adjuvant setting. Here we address this discrepancy by comparing early-stage ILC and IDC in two breast cancer patient cohorts of differing nationality and ethnicity. The clinicopathologic features of 2029 consecutive breast cancer patients diagnosed in Hong Kong (HK) and Australia (AUS) were compared. Interrelationships between tumor histology and other clinicopathologic variables, including ER/PR and Ki67, were analysed. Two hundred thirty-nine patients were identified with ILC (11.8%) and 1790 patients with IDC. AUS patients were older (p <0.001) and more often postmenopausal (p <0.03) than HK patients. As expected, ILC tumors were lower in grade and proliferative rate, and more often ER-positive and HER2-negative, than IDC (p <0.002); yet despite this, ILC tumors were as likely as IDC to present with nodal metastases (p >0.7). Moreover, whereas IDC tumors exhibited a strongly negative relationship between ER/PR and Ki67 status (p <0.0005), ILC tumors failed to demonstrate any such inverse relationship (p >0.6). These data imply that the primary adhesion defect in ILC underlies a secondary stromal-epithelial disconnect between hormonal signaling and tumor growth, suggesting in turn that this peritumoral feedback defect could reduce both the antimetastatic (adjuvant) and tumorilytic (palliative) efficacy of cytotoxic therapies for such tumors. Hence, we caution against assuming similar adjuvant chemotherapeutic survival benefits for ILC and IDC tumors with similar ER and Ki67, whether based on immunohistochemical or gene expression assays.

  3. Is adding maternal vaccination to prevent whooping cough cost-effective in Australia?

    PubMed

    Van Bellinghen, Laure-Anne; Dimitroff, Alex; Haberl, Michael; Li, Xiao; Manton, Andrew; Moeremans, Karen; Demarteau, Nadia

    2018-05-17

    Pertussis or whooping cough, a highly infectious respiratory infection, causes significant morbidity and mortality in infants. In adolescents and adults, pertussis presents with atypical symptoms often resulting in under-diagnosis and under-reporting, increasing the risk of transmission to more vulnerable groups. Maternal vaccination against pertussis protects mothers and newborns. This evaluation assessed the cost-effectiveness of adding maternal dTpa (reduced antigen diphtheria, Tetanus, acellular pertussis) vaccination to the 2016 nationally-funded pertussis program (DTPa [Diphtheria, Tetanus, acellular Pertussis] at 2, 4, 6, 18 months, 4 years and dTpa at 12-13 years) in Australia. A static cross-sectional population model was developed using a one-year period at steady-state. The model considered the total Australian population, stratified by age. Vaccine effectiveness against pertussis infection was assumed to be 92% in mothers and 91% in newborns, based on observational and case-control studies. The model included conservative assumptions around unreported cases. With 70% coverage, adding maternal vaccination to the existing pertussis program would prevent 8,847 pertussis cases, 422 outpatient cases, 146 hospitalizations and 0.54 deaths per year at the population level. With a 5% discount rate, 138.5 quality-adjusted-life-years (QALYs) would be gained at an extra cost of AUS$ 4.44 million and an incremental cost-effectiveness ratio of AUS$ 32,065 per QALY gained. Sensitivity and scenario analyses demonstrated that outcomes were most sensitive to assumptions around vaccine effectiveness, duration of protection in mothers, and disutility of unreported cases. In conclusion, dTpa vaccination in the third trimester of pregnancy is likely to be cost-effective from a healthcare payer perspective in Australia.

  4. Cytopathology of non-invasive follicular thyroid neoplasm with papillary-like nuclear features: A comparative study with similar patterned papillary thyroid carcinoma variants.

    PubMed

    Mahajan, S; Agarwal, S; Kocheri, N; Jain, D; Mathur, S R; Iyer, V K

    2018-06-01

    Noninvasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP) is a recently described, indolent thyroid tumor, with well-defined histopathological diagnostic criteria. Cytology features are not well documented. We reviewed cytology of histologically proven cases of NIFTP and some of its common differentials to look for salient diagnostic features. Cases reported on histopathology as follicular variant of papillary thyroid carcinoma (FVPTC), or NIFTP between July 2015 and April 2017 having available cytology smears were retrieved and reclassified as NIFTP, FVPTC, and classical papillary thyroid carcinoma with predominant follicular pattern (PTC-FP). Cytological features were assessed, classified as per The Bethesda System for Reporting Cytopathology and compared. There were 23 NIFTP cases, 18 FVPTC and 8 PTC-FP. A microfollicle-predominant pattern was seen in all. Nuclear score was 2 in most NIFTP cases (61%). Pseudoinclusions were absent. NIFTP showed features of atypia of undetermined significance/follicular lesion of undetermined significance (AUS/FLUS) (III) in 61%, follicular neoplasm/suspicious for a follicular neoplasm (FN/SFN) (IV) in 35% and suspicious for malignancy (SFM) (V) in 4%. Most of the FVPTCs were also called FN/SFN (IV) (56%) or AUS/FLUS (III) (22%). Nuclear features did not statistically differ from NIFTP. PTC-FP showed high-grade cytology in 75%, and higher nuclear score (3 in 75%) in contrast to NIFTP (P = .003). NIFTP and FVPTC show a similar distribution among the Bethesda categories hence precluding conclusive distinction on cytology. PTC-FP, in contrast, was found to have a statistically significant higher nuclear score and more commonly showed malignant cytology. © 2018 John Wiley & Sons Ltd.

  5. Adaptation, translation and reliability of the Australian 'Juniors Enjoying Cricket Safely' injury risk perception questionnaire for Sri Lanka.

    PubMed

    Gamage, Prasanna J; Fortington, Lauren V; Finch, Caroline F

    2018-01-01

    Cricket is a very popular sport in Sri Lanka. In this setting there has been limited research; specifically, there is little knowledge of cricket injuries. To support future research possibilities, the aim of this study was to cross-culturally adapt, translate and test the reliability of an Australian-developed questionnaire for the Sri Lankan context. The Australian 'Juniors Enjoying Cricket Safely' (JECS-Aus) injury risk perception questionnaire was cross-culturally adapted to suit the Sri Lankan context and subsequently translated into the two main languages (Sinhala and Tamil) based on standard forward-back translation. The translated questionnaires were examined for content validity by two language schoolteachers. The questionnaires were completed twice, 2 weeks apart, by two groups of school cricketers (males) aged 11-15 years (Sinhala (n=24), Tamil (n=30)) to assess reliability. Test-retest scores were evaluated for agreement. Where responses were <100% agreement, Cohen's kappa (κ) statistics were calculated. Questions with moderate-to-poor test-retest reliability (κ<0.6) were reconsidered for modification. Both the Sinhala and Tamil questionnaires had 100% agreement for questions on demographic data, and 88%-100% agreement for questions on participation in cricket and injury history. Of the injury risk perception questions, 72% (Sinhala) and 90% (Tamil) questions showed a substantial (κ=0.61-0.8) and almost perfect (κ=0.81-1.0) test-retest agreement. The adapted and translated JECS-SL questionnaire demonstrated strong reliability. This is the first study to adapt the JECS-Aus questionnaire for use in a different population, providing an outcome measure for assessing injury risk perceptions in Sri Lankan junior cricketers.

  6. The learning curve of resident physicians using emergency ultrasonography for cholelithiasis and cholecystitis.

    PubMed

    Jang, Timothy B; Ruggeri, Wendy; Dyne, Pamela; Kaji, Amy H

    2010-11-01

    Emergency department bedside ultrasonography (EUS) can expedite treatment for patients. However, it is unknown how much experience is required for competency in the sonographic diagnosis of cholelithiasis and cholecystitis. The objective was to assess the learning curve of physicians training in right upper quadrant (RUQ) EUS. This was a prospective study at an urban, academic emergency department from August 1999 to July 2006. Patients with suspected biliary tract disease underwent RUQ EUS followed by abdominal ultra sonography (AUS) by the Department of Radiology. Results of EUS were compared to AUS using a predesigned, standardized data sheet. A total of 1,837 patients underwent EUS by 127 physicians. The overall sensitivity and specificity of EUS for cholelithiasis were 84% (95% confidence interval [CI] = 81% to 86%) and 86% (95% CI = 83% to 88%), respectively. The overall sensitivity of EUS for ductal dilation, gallbladder wall thickening, pericholecystic fluid, and sludge were each < 60%. When analyzing the EUS test characteristics, for every increase in 10 examinations up to 50 examinations, there was no significant improvement in the sensitivity or specificity for any of these sonographic findings. Moreover, on probit regression analysis, accounting for clustering or correlation among the examinations performed by each of the operators, there was no improvement for detecting any of the sonographic findings except for pericholecystic fluid for every 10 additional examinations performed. When adjusting for operator dependence, performing up to 50 EUS examinations appears to have little effect on the accuracy of RUQ EUS. Rather than simply requiring an arbitrary number of examinations, another method of competency assessment may be necessary. © 2010 by the Society for Academic Emergency Medicine.

  7. Cost calculation and prediction in adult intensive care: a ground-up utilization study.

    PubMed

    Moran, J L; Peisach, A R; Solomon, P J; Martin, J

    2004-12-01

    The ability of various proxy cost measures, including therapeutic activity scores (TISS and Omega) and cumulative daily severity of illness scores, to predict individual ICU patient costs was assessed in a prospective "ground-up" utilization costing study over a six month period in 1991. Daily activity (TISS and Omega scores) and utilization in consecutive admissions to three adult university associated ICUs was recorded by dedicated data collectors. Cost prediction used linear regression with determination (80%) and validation (20%) data sets. The cohort, 1333 patients, had a mean (SD) age 57.5 (19.4) years, (41% female) and admission APACHE III score of 58 (27). ICU length of stay and mortality were 3.9 (6.1) days and 17.6% respectively. Mean total TISS and Omega scores were 117 (157) and 72 (113) respectively. Mean patient costs per ICU episode (1991 dollar AUS) were dollar 6801 (dollar 10311), with median costs of dollar 2534, range dollar 106 to dollar 95,602. Dominant cost fractions were nursing 43.3% and overheads 16.9%. Inflation adjusted year 2002 (mean) costs were dollar 9343 (dollar AUS). Total costs in survivors were predicted by Omega score, summed APACHE III score and ICU length of stay; determination R2, 0.91; validation 0.88. Omega was the preferred activity score. Without the Omega score, predictors were age, summed APACHE III score and ICU length of stay; determination R2, 0.73; validation 0.73. In non-survivors, predictors were age and ICU length of stay (plus interaction), and Omega score (determination R2, 0.97; validation 0.91). Patient costs may be predicted by a combination of ICU activity indices and severity scores.

  8. The Maintenance of Wakefulness Test and driving simulator performance.

    PubMed

    Banks, Siobhan; Catcheside, Peter; Lack, Leon C; Grunstein, Ron R; McEvoy, R Doug

    2005-11-01

    It has been suggested that the Maintenance of Wakefulness Test (MWT) may be clinically useful to assess fitness to drive, yet little is known about the actual relationship between sleep latency and driving performance. This study examined the ability of 2 MWT trials to predict driving-simulator performance in healthy individuals. Experimental. NA. Twenty healthy volunteers (mean age 22.8 years; 9 men). NA. The MWT and driving-simulator performance were examined under 2 conditions-partial sleep deprivation and a combination of partial sleep deprivation and alcohol consumption. Each subject was studied a week apart, with the order randomly assigned. Subjects completed a nighttime 70-minute AusEd driving simulation task and two 40-minute MWT trials, 1 before (MWT1) and 1 after (MWT2) the driving task. In the sleep-deprived condition, the MWT1 sleep latency was inversely correlated with braking reaction time. During the partial sleep deprivation and alcohol condition, the number of microsleeps during the driving task, steering deviation, braking reaction time, and crashes all negatively correlated with the MWT1 sleep latency. Additionally, construction of a receiver-operator characteristic curve revealed that MWT1 sleep latency in the partial sleep deprivation plus alcohol condition significantly discriminated subjects who had a crash from those who did not. These results indicate that sleep latency on the MWT is a reasonable predictor of driving simulator performance in sleepy, alcohol-impaired, normal subjects. Further research is needed to examine the relationship between daytime MWT results and driving simulator performance in sleepy patients (eg, those with obstructive sleep apnea) and in experimentally sleep-deprived normal subjects.

  9. On the Performance of Quorum Replication on the Internet

    DTIC Science & Technology

    2008-10-31

    ISP in Cambridge, MA MA2 ISP in Cambridge, MA MA3 ISP in Martha’s Vineyard, MA MA4 ISP in Massachusetts, MA MD ISP in Laurel, MD MEX National...1523 171 96% 58% MA2 28% 742 1517 230 94% 59% NC 32% 465 616 255 90% 63% ISR2 3% 424 70 400 100% 97% UT1 27% 979 1847 189 96% 55% MA1 29% 645 712 238... MA2 UT2 UT1 CA1 AUS NC NZ TW KR CA2 CA3 Fig. 4. Our crumbling wall quorum system. of the first row are in North America. TW, which has lossy

  10. Influence of α-amylase template concentration on systematic entrapment of highly stable and monodispersed colloidal gold nanoparticles

    NASA Astrophysics Data System (ADS)

    Ananth, A. Nitthin; Ananth, A. Nimrodh; Jose, Sujin P.; Umapathy, S.; Mathavan, T.

    2016-01-01

    Nano gold / α-amylase colloidal dispersions of profound stability were made using simple procedure with a conventional reducing agent. The surface plasmon resonance of the gold nanocrystals was used to quantify the extent of the dispersion stability and functionalization. It is found that the reduced gold nanoparticles were trapped into the protein network without denaturation the structure of α-amylase protein. This kind of entrapment of particles into the protein network prevents clustering of individual gold nanoparticles (6.42 nm ± 0.92 nm) by acting as a natural spacer. Systematic entrapment was facilitated by the affinity of gold to the sulfur moieties (Au-S) in the protein structure.

  11. Semantic Desktop

    NASA Astrophysics Data System (ADS)

    Sauermann, Leo; Kiesel, Malte; Schumacher, Kinga; Bernardi, Ansgar

    In diesem Beitrag wird gezeigt, wie der Arbeitsplatz der Zukunft aussehen könnte und wo das Semantic Web neue Möglichkeiten eröffnet. Dazu werden Ansätze aus dem Bereich Semantic Web, Knowledge Representation, Desktop-Anwendungen und Visualisierung vorgestellt, die es uns ermöglichen, die bestehenden Daten eines Benutzers neu zu interpretieren und zu verwenden. Dabei bringt die Kombination von Semantic Web und Desktop Computern besondere Vorteile - ein Paradigma, das unter dem Titel Semantic Desktop bekannt ist. Die beschriebenen Möglichkeiten der Applikationsintegration sind aber nicht auf den Desktop beschränkt, sondern können genauso in Web-Anwendungen Verwendung finden.

  12. Evaluation der zentralen TUM-Lernplattform

    NASA Astrophysics Data System (ADS)

    Schulze, Elvira; Baume, Matthias; Graf, Stephan; Gergintchev, Ivan

    Die Notwendigkeit der Qualitätssicherung und -kontrolle für innovative universitäre Lehr-/Lernszenarien ist in der Praxis unbestritten. Die Wirksamkeit der Einführung der zentralen Lernplattform CLIX Campus der imc AG an der TUM wurde mittels quantitativer und qualitativer Evaluation überprüft. Als statistische Bewertungsgrundlage wurde der Erreichungsgrad bestimmter Projektziele herangezogen. Aufbauend auf den theoretischen Grundlagen der Evaluation von Bildungsangeboten gibt diese Studie Aufschluss über die Ergebnisse der Datenerhebungen sowie die Einschätzung der Plattform aus Nutzersicht und belegt die wesentliche Bedeutung der durchgängigen IT-Infrastruktur und speziell der einheitlichen Verfügbarkeit der eLearning Angebote.

  13. Der Einfluss der Digitalisierung auf die Organisation eines Unternehmens

    NASA Astrophysics Data System (ADS)

    Walter, Wolfram M.

    Die Digitalisierung schreitet mit großen Schritten voran. Dies wirkt sich nicht nur auf die Gesellschaft im Grundsatz, sondern auch auf das Verhalten der Kunden aus. Neue Kommunikationswege beschleunigen die Interaktion zwischen Unternehmen und Verbraucher. Im Vergleich mit großen Internetfirmen werden etablierte Dienstleistungsunternehmen - vom Energieversorger bis zu Versicherungen - stark unter Druck gesetzt, sich noch intensiver mit dem Kundenservice auseinanderzusetzen. Dies wird nur möglich sein, wenn sich die Organisationen entsprechend positionieren und sich frühzeitig auf die Veränderungen einstellen. Hieraus ergeben sich mehr Chancen als Risiken, zumal es nicht nur neue Prozesse, sondern auch neue Berufsbilder geben wird.

  14. Geschichtlicher Überblick

    NASA Astrophysics Data System (ADS)

    Bölke, Klaus-Peter

    Die Nachweise einer schadlosen Ableitung von Abwässern lassen sich bis weit in die Vergangenheit zurückverfolgen. Sie waren bereits zur damaligen Zeit eine Forderung zur Pflege der öffentlichen Reinlichkeit. Der Kanalisationsbau ist auch immer ein Ausdruck der Kultur eines Volkes gewesen. So kann festgestellt werden, dass im Zusammenhang mit der Hochkultur eines Volkes auch der Kanalbau ein vorherrschendes Thema war. Der Kanalbau steht auch in einem engen Zusammenhang mit dem Wasserleitungsbau. Es ist nur logisch, dass dort wo Wasser teilweise aus großer Entfernung herangeführt worden ist, dieses dann nach Gebrauch auch wieder schadlos beseitigt werden musste.

  15. [Leben im Eismeer - Tauchuntersuchungen zur Biologie arktischer Meerespflanzen und Meerestiere

    PubMed

    Lippert; Karsten; Wiencke

    2000-01-01

    Die Maske wird nochmals auf Dichtigkeit überprüft, der Knoten der Sicherungsleine mit zwei halben Schlägen fixiert, dann rutscht die Taucherin von der Eiskante in das kalte Wasser. Eine halbe Stunde vergeht, bevor ihr Kopf wieder aus dem Eisloch auftaucht und sie ein großes Sammelnetz nach oben reicht, gefüllt mit verschiedenen Arten von Makroalgen. Obwohl noch große Flächen des Kongsfjordes im arktischen Spitzbergen zugefroren sind und das Festland von einer dicken Schneedecke bedeckt ist, hat unter Wasser in den Algenwäldern bereits der Sommer und damit die Saison der Meeresbiologen begonnen.

  16. Berechnung verkehrlicher Substitutionseffekte im Personenverkehr bei Online-Shopping

    NASA Astrophysics Data System (ADS)

    Nerlich, Mark R.; Schiffner, Felix; Vogt, Walter; Rauh, Jürgen; Breidenbach, Petra

    Für Güter des täglichen, mittelfristigen und langfristigen Bedarfs sowie für das Beispiel Baumarktartikel wird das Potenzial für Personenverkehrsaufwand von Einkaufsaktivtäten quantitativ abgeschätzt. Die entwickelten Algorithmen behandeln die einkaufsvorbereitende Information und den eigentlichen Einkauf, d.h. den Erwerb eines Gutes, separat. Informationsaktivitäten haben insbesondere bei höherwertigen Gütern einen hohen Stellenwert und damit auch verkehrliche Relevanz. Wie Berechnungen zeigen, spart Online-Shopping Informations- und Einkaufsverkehrsaufwand im Pkw-Verkehr ein. Die notwendigen Eingangsdaten wie differenzierte Informations- und Einkaufshäufigkeiten sowie verkehrliche Parameter zu Verkehrsmittelwahl, Entfernungen und Wegekopplungen wurden aus eigenen Erhebungen gewonnen.

  17. Unfallaufnahme und Datenerhebung

    NASA Astrophysics Data System (ADS)

    Brösdorf, Klaus-Dieter; Moser, Andreas; Burg, Jürgen

    Unfälle ereignen sich in unterschiedlichen Schweregraden. Man unterscheidet zwischen Unfälle mit nur Sachschaden und in Unfälle mit Personenschaden. Gemäß Statistik [1] machten in Deutschland im Jahr 2005 Unfälle mit Personenschaden (336.619) etwa 15 % der Gesamtanzahl der polizeilich erfassten Unfälle (2.253.992) aus. In den amtlichen Statistiken sind nur polizeilich erfasste Unfälle enthalten. Eine größere Zahl von Unfällen, insbesondere leichtere Unfälle, wird offensichtlich polizeilich nicht gemeldet. Mit den Daten der Versicherungswirtschaft wird die Anzahl der Kfz-Schäden pro Jahr in Deutschland mit 8.673.000 angegeben [2].

  18. Segmentierung von Aortenaneurysmen in CTA-Bildern mit dem statistischen Verfahren der Active Appearance Models

    NASA Astrophysics Data System (ADS)

    Greiner, Katharina; Egger, Jan; Großkopf, Stefan; Kaftan, Jens N.; Dörner, Ralf; Freisleben, Bernd

    In diesem Beitrag werden Active Appearance Models (AAMs) zur Segmentierung der äußeren Kontur von Aortenaneurysmen eingesetzt. Diese Aufgabe ist wegen des geringen Kontrastes zum umliegenden Gewebe und des Aufbaus der teils thrombotisierten oder kalzifizierten Gefäßwände im Bereich eines Aneurysmas so komplex, dass sie aufgrund der Vielgestalt der Kontur in CT-Angiographie-Bildern die Verwendung eines statistischen Modells für Form und eingeschlossene Textur rechtfertigt. Für die Evaluation des Verfahrens wurden verschiedene statistische Modelle aus Schichten von neun CTA-Datensätzen trainiert und die Segmentierung anhand von Leave-One-Out-Tests überprüft.

  19. Limits of quantitation - Yet another suggestion

    NASA Astrophysics Data System (ADS)

    Carlson, Jill; Wysoczanski, Artur; Voigtman, Edward

    2014-06-01

    The work presented herein suggests that the limit of quantitation concept may be rendered substantially less ambiguous and ultimately more useful as a figure of merit by basing it upon the significant figure and relative measurement error ideas due to Coleman, Auses and Gram, coupled with the correct instantiation of Currie's detection limit methodology. Simple theoretical results are presented for a linear, univariate chemical measurement system with homoscedastic Gaussian noise, and these are tested against both Monte Carlo computer simulations and laser-excited molecular fluorescence experimental results. Good agreement among experiment, theory and simulation is obtained and an easy extension to linearly heteroscedastic Gaussian noise is also outlined.

  20. PREFACE: International Conference on the Use of X-ray (and related) Techniques in Arts and Cultural Heritage (XTACH 11)

    NASA Astrophysics Data System (ADS)

    Hamdan, Nasser; El-Khatib, Sami

    2012-07-01

    The International Conference on the Use of X-Ray (and related) Techniques in Arts and Cultural Heritage (XTACH11) was held on 7 and 8 December 2011 at the American University of Sharjah (AUS) in the United Arab Emirates. The conference was organized in collaboration with the International Atomic Energy Agency (IAEA) and the National X-ray Fluorescence Laboratory (NXFL). The conference was inaugurated by Dr Peter Heath, Chancellor of the American University of Shrjah and attended by Mr Kwaku Aning, deputy Director General of the International Atomic Energy and Ambassador Hamad Al-Kaabi, Ambassador of the UAE to the International Atomic Energy university officials, faculty and students. The conference covered a variety of topics including the use of x-ray and micro beam x-ray analysis, synchrotron based techniques, ion beam and neutron based techniques, optical imaging and mass spectroscopy and chromatography techniques as well as best conservation practices. XTACH11 provided an excellent forum for scientists in the region to interact, exchange ideas and to initiate collaborations with each other as well as with the international community. It showcased some of the latest technical developments in the field of non-destructive testing for the diagnosis and conservation of cultural heritage materials. In addition to the presentations by the invited speakers (Rene van Grieken and K Janssens, University of Antwerp, Belgium; Thomas Calligaro, Centre de Recherche et de Restauration des Musees de France; Stefano Ridolfi, Ars Mensurae, Rome, Italy, and Andrzej Markowicz, IAEA, Austria), a total of 25 other research papers were also presented and discussed. Scientists from many countries participated in the conference: Austria, Belgium, Egypt, Italy, India, Iran, Iraq, Jordan, Lebanon, Qatar, Saudi Arabia, Spain, Sri Lanka, Syria, Thailand, the United Arab Emirates and Yemen. The conference concluded with a Discussion Panel. Thomas Calligaro (Centre de Recherché et de

  1. Corporate Regional Responsibility - Warum engagieren sich Unternehmen gemeinsam für ihre Region?. Motive der kollektiven regionalen Verantwortungsübernahme von Unternehmen an den Beispielen des Initiativkreises Ruhr und der Wirtschaftsinitiative FrankfurtRheinMain

    NASA Astrophysics Data System (ADS)

    Schiek, Meike

    2016-03-01

    Companies can voluntarily participate in matters of regional developments, thereby accepting responsibility on a regional level. Referring to the concept of Corporate Social Responsibility (CSR), the term Corporate Regional Responsibility (CRR) is used to describe this behavior. Moreover, companies can form a CRR-corporation with other companies in order to take over a collective CRR. So far, the motives of companies for exercising collective CRR are unknown, thus, corporate resources can not be mobilized and utilized efficiently for regional developments. This article explores the subject of collective CRR and illustrates CRR motives using the example of the two CRR-cooperations Initiativkreis Ruhr and Wirtschaftsinitiative FrankfurtRheinMain.

  2. Vergleich von hydraulischen und chemischen Sedimenteigenschaften aus Spül- und Kernbohrungen im Raum Peine (Norddeutschland)

    NASA Astrophysics Data System (ADS)

    Konrad, C.; Walther, W.; Reimann, T.; Rogge, A.; Stengel, P.; Well, R.

    2008-03-01

    Comparison of hydraulic and chemical properties of sediments from flush- and core drillings in the area of Peine (Germany). Because of financial constraints, investigations of nitrate metabolism are often based on disturbed borehole samples. It is arguable, however, whether disturbed samples are suitable for these types of investigations. Disadvantages of disturbed samples in comparison to undisturbed core samples are well known and include possible contamination of the sample by mud additives, destruction of the sediment formation and the insecurity concerning the correct depth allocation. In this study, boreholes were drilled at three locations to a maximum depth of 50 m. The extracted samples, as intact sediment cores and drill cuttings, were studied with regard to chemical and hydraulic parameters of the aquifer sediments. The results show: 1. hydraulic parameters are not affected by clay-based mud; 2. disturbed samples contain less fine grain material relative to the core samples, and the hydraulic conductivity can only be estimated from catch samples; 3. catch samples contain fewer reducing agents (sulphides, organic carbon) than core samples in hydraulically passive zones (defined as K < 10 6 m · s 1); 4. the results of analyses of disturbed and undisturbed core samples are in good agreement for hydraulically active zones (K ≥ 10 6 m · s 1).

  3. Influence of descriptive terminology on management of atypical thyroid fine-needle aspirates.

    PubMed

    Vivero, Marina; Renshaw, Andrew A; Krane, Jeffrey F

    2014-03-01

    The Bethesda System category of atypia of undetermined significance/follicular lesion of undetermined significance (AUS/FLUS) is used to classify a variety of mild abnormalities in thyroid FNAs. Modifying terminology is often added to FNA reports, but it is unknown whether specific phrases affect clinical management. To answer this question, the authors correlated treatment of patients who had initial AUS/FLUS diagnoses from Baptist Hospital (Miami, Fla) (BH) and Brigham and Women's Hospital (Boston, Mass) (BWH) with the language used in pathology reports. In total, 146 FNAs from BH, including 115 women and 31 men with a median age of 53 years (range, 21-79 years), and 300 FNAs from BWH, including 241 women and 59 men with a median age of 66 years (range, 10-85 years), were included. FNA reports were evaluated for predetermined descriptive phrases and were correlated with subsequent management. More patients with available follow-up underwent excision at BH than at BWH (86% vs 8%; P < .001), and fewer underwent a repeat biopsy (14% vs 92%; P < .001). Qualifiers associated with differing malignancy risk affected patient management (P < .05) at BH, but not at BWH. Reports indicating a scant or limited specimen increased rebiopsy rates at BH (100% vs 4.8%; P < .05), but not at BWH (93% vs 91%; P = .67), as did explicit recommendation for rebiopsy at BH (35% vs 14%; P = .03). No other phrases affected patient management (P > .05). In practice settings that follow The Bethesda System management guidelines, descriptive report terminology does not modify patient treatment. In less standardized settings, terminology associated with differing risk of malignancy on subsequent excision, pathologist recommendations, and phrases indicative of limited sampling significantly alter patient management. © 2013 American Cancer Society.

  4. Pancreatic Lipase Immunoreactivity in Serum of Dogs with Diabetic Ketoacidosis.

    PubMed

    Bolton, T A; Cook, A; Steiner, J M; Fosgate, G T

    2016-07-01

    Diabetic ketoacidosis (DKA) is a relatively common endocrine disorder in dogs and is routinely associated with concurrent pancreatic injury. The aims of this study were to determine the prevalence of pancreatic injury in dogs with DKA based on measurement of pancreatic lipase immunoreactivity in serum (PLI); compare demographic, clinicopathologic, and ultrasonographic findings in dogs with and without evidence of concurrent pancreatic injury; determine the impact of pancreatic injury on duration of hospitalization and short-term outcome. One hundred and nineteen dogs with DKA with or without concurrent pancreatic injury. Retrospective study. Dogs with DKA were divided into three groups on the basis of PLI results: positive for pancreatic injury (PLIpos ), negative for pancreatic injury (PLIneg ), and not tested (PLIna ). Demographics, clinicopathologic test results, findings on abdominal ultrasonography (AUS), duration of hospitalization, and short-term outcome were compared between the three groups. Based on serum PLI activity, 45 dogs (73%) with DKA had evidence of concurrent pancreatic injury. Median total carbon dioxide was significantly lower in the PLIpos dogs compared to the PLIneg dogs. There was fair agreement (κ = 0.26) between serum PLI activity and AUS. Evidence of pancreatic injury was not associated with significantly longer periods of hospitalization (PLIpos median 6 days, range 4-7 days, PLIneg median 4 days, range 3-6 days) and did not influence short-term outcome (PLIpos failure to survive to discharge 11/45, 24%, PLIneg failure to survive to discharge 2/17, 12%). Concurrent pancreatic injury is common in dogs with DKA, but did not affect prognosis in this population of dogs. Copyright © 2016 The Authors. Journal of Veterinary Internal Medicine published by Wiley Periodicals, Inc. on behalf of the American College of Veterinary Internal Medicine.

  5. Infrequent Reservoir‐Related Complications of Urologic Prosthetics: A Case Series and Literature Review

    PubMed Central

    Terlecki, Ryan; Mirzazadeh, Majid

    2015-01-01

    Abstract Introduction and Aim Complications related to inflatable penile prosthesis (IPP) and artificial urinary sphincter (AUS) reservoirs are rare, potentially life threatening, and poorly described in the literature. As more devices are implanted, the incidence of reservoir‐related complications may increase, and it will be important to recognize the relevant signs and symptoms. Methods and Main Outcome Measures We present a case series of reservoir‐related complications presenting to our institution for treatment. We also reviewed all accounts of reservoir‐related complications within the urologic literature Results Three cases of reservoir‐related complications are presented. Case 1 involves erosion of an intact AUS reservoir into the cecum of a patient with a history of myelomeningocele and bladder augmentation. Case 2 involves an IPP reservoir causing vascular compression, resulting in open exploration and repositioning of the reservoir. Case 3 involves intraperitoneal migration of a retained IPP reservoir to a subhepatic area, which was then removed laparoscopically. Literature review yielded descriptions of eight cases of intestinal complications, five cases of vascular complications, but zero reports of migration to a subhepatic area. Other notable complications include 20 reported cases of reservoir erosion into the bladder and inguinal herniation of the reservoir. Conclusion Complications involving urologic prosthesis reservoirs, although rare, can have serious implications for patients. A high index of suspicion and familiarity with treatment options is required in order to allow timely diagnosis and appropriate treatment. Patients with prior major abdominal surgeries seem to be more prone to intestinal complications of reservoirs and warrant special concern. Cui T, Terlecki R, and Mirzazadeh M. Infrequent reservoir‐related complications of urologic prosthetics: A case series and literature review. Sex Med 2015;3:334–338. PMID:26797069

  6. The prevalence of Vitamin D deficiency is higher in adult survivors of childhood cancer.

    PubMed

    Neville, Kristen A; Walker, Jan L; Cohn, Richard J; Cowell, Christopher T; White, Christopher P

    2015-05-01

    It is unclear whether the rate of vitamin D deficiency in paediatric cancer survivors is higher than in the background population, and whether this is of pathological significance. 25OHD was measured in a previously studied group of 208 survivors (n = 108 paediatric 5-17 years, n = 99 adults 18-39 years) and compared with paediatric (5-17 years; n = 132) and adult controls (25-35 years; n = 1393 from the AusDiab cohort) adjusted for age and gender. Relationships with treatment factors (irradiation, bone marrow transplantation and intensity of treatment) along with overweight/obesity (defined by BMI), abdominal adiposity (waist:height ratio >0·5) and hyperinsulinism or abnormal glucose tolerance (HI/aGT) were sought. 25OHD concentrations were similar in paediatric survivors compared with controls (64·3 ± 21·6 nmol/l vs 66·3 ± 22·8 nmol/l), with no effect of age or gender. Adjusted for gender, rates of 25OHD deficiency (<50 nmol/l) were higher in adult survivors compared with AusDiab controls (42·4% vs 20·8%; P < 0·001). Apart from time since diagnosis (P = 0·03), no relationship with treatment factors was detected. In multivariate regression analysis, abdominal adiposity (P = 0·001), but not overweight/obesity by BMI status nor HI/aGT, was associated with significantly lower 25OHD concentrations. Adult survivors are at increased risk of abnormalities in vitamin D compared to the background population, probably reflecting longer time since diagnosis. Like others, we have not identified any contributory treatment-related factors. Vitamin D deficiency does not appear to be associated with the development of abnormal glucose tolerance in this population. © 2015 John Wiley & Sons Ltd.

  7. Oberflächenstrukturierung metallischer Werkstoffe, z. B. für stents

    NASA Astrophysics Data System (ADS)

    Stöver, Michael; Wintermantel, Erich

    Eine topologische Oberflächenmodifikation von metallischen Implantaten kann aus verschiedenen Gründen sinnvoll sein. Im Allgemeinen lassen sich zwei Hauptziele unterscheiden. Zum einen dienen Oberflächen dazu, bestimmte Zellreaktionen zu forcieren. Die Anwendungsbeispiele reichen hier von sehr rauen Oberflächen in Fällen wo eine gute Integration eines Permanentimplantates in das Gewebe erwünscht ist bis hin zu glatt polierten Oberflächen. Letztere werden in erster Linie dort eingesetzt, wo das Implantat in direktem Kontakt mit Blut ist. Ein Beispiel für die Erforderlichkeit einer hohen Rauheit (Rz > 100 μm) sind meist aus Titan gefertigte Schäfte von Gelenksimplantaten [1,2]. Die Autoren machten den Vorschlag, die Aufrauung von Titan- und Edelstahl-Stents analog der Aufrauung bei Hüftprothesenschäften zu versuchen, um eine noch bessere Biokompatibilität zu erreichen. [7, 8 ,9]. Sehr glatte Oberflächen, in der Regel mit Rz Werten von unter 0,1 μm, sind z. B. bei Herzklappenprothesen und der Innenseite von Gefäßstützen gefordert. Mittlere Rauheiten werden oft bei temporären Implantaten eingesetzt, in die in reguliertem Maße Gewebe einwachsen, allerdings keine unlösbare Verbindung bilden sollen. Sehr genau eingestellt werden müssen auch die Oberflächentopographien bei Implantaten in sehr empfindlichen Gebieten wie z. B. der Gehirnregion. Hierbei muss eine gute Verankerung im Gewebe vorhanden sein, um ein Verrutschen des Implantates zu verhindern. Zum anderen darf keine überschüssige Zellproliferation entstehen, um ein Einwachsen in sensible Regionen zu verhindern. Zum anderen werden Oberflächenmikrostrukturen genutzt, um Wirkstoffe in Implantate einzubringen, die lokal über einen bestimmten Zeitraum freigesetzt werden sollen. Als wichtigste Wirkstoffe sind hier Antibiotika und entzündungshemmende Mittel sowie im kardiovaskulären Bereich Proliferationshemmer zu nennen.

  8. XPS and Ag L3-edge XANES characterization of silver and silver-gold sulfoselenides

    NASA Astrophysics Data System (ADS)

    Mikhlin, Yuri L.; Pal'yanova, Galina A.; Tomashevich, Yevgeny V.; Vishnyakova, Elena A.; Vorobyev, Sergey A.; Kokh, Konstantin A.

    2018-05-01

    Gold and silver sulfoselenides are of interest as materials with high ionic conductivity and promising magnetoresistive, thermoelectric, optical, and other physico-chemical properties, which are strongly dependent on composition and structure. Here, we applied X-ray photoelectron spectroscopy and Ag L3 X-ray absorption near-edge structure (XANES) to study the electronic structures of low-temperature compounds and solid solutions Ag2SxSe1-x (0 < x < 1), AgAuS, and Ag3AuSxSe2-x (x = 0, 1, 2). Upon substitution of Se with S, a steady increase in the positive charge at Ag(I) sites and only minor changes in the local charge at chalcogen atoms were found from the photoelectron Ag 3d, S 2p, Se 3d, and Ag M4,5VV Auger spectra. The intensity of the Ag L3-edge peak, which is known to correlate with hole counts in the Ag 4d shell having a formal d10 configuration, was enhanced by 20-25% from Ag2Se to Ag2S and from Ag3AuSe2 to Ag3AuS2. The effect of gold is more pronounced, and the number of Ag d holes and the negative charge of S and Se notably decreased for Au-containing compounds; in particular, the Ag L3-edge peak is about 35% lower for AgAuS relative to Ag2S. At the same time, the Au 4f binding energy and, therefore, charge at Au(I) sites increase with increasing S content due to the transfer of electron density from Au to Ag atoms. It was concluded that the effects mainly originate from shortening of the metal-chalcogen and especially the Ausbnd Ag interatomic distances in substances having similar coordination geometry.

  9. Cord blood Streptococcus pneumoniae‐specific cellular immune responses predict early pneumococcal carriage in high‐risk infants in Papua New Guinea

    PubMed Central

    Francis, J. P.; Richmond, P. C.; Strickland, D.; Prescott, S. L.; Pomat, W. S.; Michael, A.; Nadal‐Sims, M. A.; Edwards‐Devitt, C. J.; Holt, P. G.; Lehmann, D.

    2016-01-01

    Summary In areas where Streptococcus pneumoniae is highly endemic, infants experience very early pneumococcal colonization of the upper respiratory tract, with carriage often persisting into adulthood. We aimed to explore whether newborns in high‐risk areas have pre‐existing pneumococcal‐specific cellular immune responses that may affect early pneumococcal acquisition. Cord blood mononuclear cells (CBMC) of 84 Papua New Guinean (PNG; high endemic) and 33 Australian (AUS; low endemic) newborns were stimulated in vitro with detoxified pneumolysin (dPly) or pneumococcal surface protein A (PspA; families 1 and 2) and compared for cytokine responses. Within the PNG cohort, associations between CBMC dPly and PspA‐induced responses and pneumococcal colonization within the first month of life were studied. Significantly higher PspA‐specific interferon (IFN)‐γ, tumour necrosis factor (TNF)‐α, interleukin (IL)‐5, IL‐6, IL‐10 and IL‐13 responses, and lower dPly‐IL‐6 responses were produced in CBMC cultures of PNG compared to AUS newborns. Higher CBMC PspA‐IL‐5 and PspA‐IL‐13 responses correlated with a higher proportion of cord CD4 T cells, and higher dPly‐IL‐6 responses with a higher frequency of cord antigen‐presenting cells. In the PNG cohort, higher PspA‐specific IL‐5 and IL‐6 CBMC responses were associated independently and significantly with increased risk of earlier pneumococcal colonization, while a significant protective effect was found for higher PspA‐IL‐10 CBMC responses. Pneumococcus‐specific cellular immune responses differ between children born in pneumococcal high versus low endemic settings, which may contribute to the higher risk of infants in high endemic settings for early pneumococcal colonization, and hence disease. PMID:27859014

  10. Cardiometabolic risk in polycystic ovary syndrome: a comparison of different approaches to defining the metabolic syndrome.

    PubMed

    Cussons, Andrea J; Watts, Gerald F; Burke, Valerie; Shaw, Jonathan E; Zimmet, Paul Z; Stuckey, Bronwyn G A

    2008-10-01

    Polycystic ovary syndrome (PCOS) is associated with insulin resistance and features in common with the metabolic syndrome (MetS)--factors shown to predict cardiovascular risk and type 2 diabetes. We investigated the prevalence and characteristics of the MetS in PCOS by three definitions-World Health Organization (WHO), National Cholesterol Education Program Adult Treatment Panel III (NCEP-ATP-III) and International Diabetes Federation (IDF)--and compared that with the background population. Cross-sectional study of 168 women with PCOS and 883 age-matched controls from the Australian Diabetes, Obesity and Lifestyle (AusDiab) study. Prevalence of the MetS in PCOS subjects was 33% by WHO, 37% by NCEP-ATP-III and 40% by IDF criteria, compared with 10% by NCEP-ATP-III and 13% by IDF in controls (P < 0.001). MetS by WHO criteria was not calculated in the AusDiab population. Age was an independent predictor of MetS in PCOS and controls. The prevalence of MetS was significantly higher among those with PCOS (P = 0.027) in obese women (BMI > 30 kg/m(2)), and higher but not significantly so in overweight (BMI 25-30 kg/m(2)) women (P = 0.052). Dehydroepiandrosterone sulphate was associated with a lower risk of the MetS--Odds ratio 0.86 (95% confidence interval, 0.77-0.97, P = 0.011). An approximate 4-fold increase in the prevalence of the MetS in women with PCOS compared with the general population, consistent with the proposed major role of insulin and obesity in the syndrome, implies greater risk of cardiometabolic disease in women with PCOS. However, this estimate is likely to vary according to PCOS definition, ethnicity and different aetiological pathways to PCOS.

  11. The origin of Ag-Au-S-Se minerals in adularia-sericite epithermal deposits: constraints from the Broken Hills deposit, Hauraki Goldfield, New Zealand

    NASA Astrophysics Data System (ADS)

    Cocker, Helen A.; Mauk, Jeffrey L.; Rabone, Stuart D. C.

    2013-02-01

    The 7.1 Ma Broken Hills adularia-sericite Au-Ag deposit is currently the only producing rhyolite-hosted epithermal deposit in the Hauraki Goldfield of New Zealand. The opaque minerals include pyrite, electrum, acanthite (Ag2S), sphalerite, and galena, which are common in other adularia-sericite epithermal deposits in the Hauraki Goldfield and elsewhere worldwide. Broken Hills ores also contain the less common minerals aguilarite (Ag4SeS), naumannite (Ag2Se), petrovskaite (AuAgS), uytenbogaardtite (Ag3AuS2), fischesserite (Ag3AuSe2), an unnamed silver chloride (Ag2Cl), and unnamed Ag ± Au minerals. Uytenbogaardtite and petrovskaite occur with high-fineness electrum. Broken Hills is the only deposit in the Hauraki Goldfield where uytenbogaardtite and petrovskaite have been identified, and these phases appear to have formed predominantly from unmixing of a precursor high-temperature phase under hypogene conditions. Supergene minerals include covellite, chalcocite, Au-rich electrum, barite, and a variety of iron oxyhydroxide minerals. Uytenbogaardtite can form under supergene and hypogene conditions, and textural relationships between uytenbogaardtite and associated high-fineness electrum may be similar in both conditions. Distinguishing the likely environment of formation rests principally on identification of other supergene minerals and documenting their relationships with uytenbogaardtite. The presence of aguilarite, naumannite, petrovskaite, and fischesserite at Broken Hills reflects a Se-rich mineral assemblage. In the Hauraki Goldfield and the western Great Basin, USA, Se-rich minerals are more abundant in provinces that are characterized by bimodal rhyolite-andesite volcanism, but in other epithermal provinces worldwide, the controls on the occurrences of Se-bearing minerals remain poorly constrained, in spite of the unusually high grades associated with many Se-rich epithermal deposits.

  12. ATP-binding cassette transporters and sterol O-acyltransferases interact at membrane microdomains to modulate sterol uptake and esterification

    PubMed Central

    Gulati, Sonia; Balderes, Dina; Kim, Christine; Guo, Zhongmin A.; Wilcox, Lisa; Area-Gomez, Estela; Snider, Jamie; Wolinski, Heimo; Stagljar, Igor; Granato, Juliana T.; Ruggles, Kelly V.; DeGiorgis, Joseph A.; Kohlwein, Sepp D.; Schon, Eric A.; Sturley, Stephen L.

    2015-01-01

    A key component of eukaryotic lipid homeostasis is the esterification of sterols with fatty acids by sterol O-acyltransferases (SOATs). The esterification reactions are allosterically activated by their sterol substrates, the majority of which accumulate at the plasma membrane. We demonstrate that in yeast, sterol transport from the plasma membrane to the site of esterification is associated with the physical interaction of the major SOAT, acyl-coenzyme A:cholesterol acyltransferase (ACAT)-related enzyme (Are)2p, with 2 plasma membrane ATP-binding cassette (ABC) transporters: Aus1p and Pdr11p. Are2p, Aus1p, and Pdr11p, unlike the minor acyltransferase, Are1p, colocalize to sterol and sphingolipid-enriched, detergent-resistant microdomains (DRMs). Deletion of either ABC transporter results in Are2p relocalization to detergent-soluble membrane domains and a significant decrease (53–36%) in esterification of exogenous sterol. Similarly, in murine tissues, the SOAT1/Acat1 enzyme and activity localize to DRMs. This subcellular localization is diminished upon deletion of murine ABC transporters, such as Abcg1, which itself is DRM associated. We propose that the close proximity of sterol esterification and transport proteins to each other combined with their residence in lipid-enriched membrane microdomains facilitates rapid, high-capacity sterol transport and esterification, obviating any requirement for soluble intermediary proteins.—Gulati, S., Balderes, D., Kim, C., Guo, Z. A., Wilcox, L., Area-Gomez, E., Snider, J., Wolinski, H., Stagljar, I., Granato, J. T., Ruggles, K. V., DeGiorgis, J. A., Kohlwein, S. D., Schon, E. A., Sturley, S. L. ATP-binding cassette transporters and sterol O-acyltransferases interact at membrane microdomains to modulate sterol uptake and esterification. PMID:26220175

  13. Does Armodafinil Improve Driving Task Performance and Weight Loss in Sleep Apnea? A Randomized Trial.

    PubMed

    Chapman, Julia Louise; Cayanan, Elizabeth Anne; Hoyos, Camilla Miranda; Serinel, Yasmina; Comas, Maria; Yee, Brendon John; Wong, Keith Keat Huat; Grunstein, Ronald Robert; Marshall, Nathaniel Stuart

    2018-05-18

    RATIONALE Obstructive sleep apnea (OSA) patients unable to tolerate standard treatments have few alternatives. They may benefit from weight loss, but the major symptom of daytime performance impairment may remain during weight loss programs. OBJECTIVES We hypothesized that wakefulness-promoter armodafinil would improve driving task performance over placebo in patients undergoing weight loss. METHODS Placebo-controlled, double-blind, randomized trial of Armodafinil vs Placebo daily for 6 months in patients who were also randomized to one of two diets for six months with follow-up at one year in overweight, adult, OSA patients who had rejected standard treatment and suffered daytime sleepiness. MEASUREMENTS Primary outcome: change in steering deviation in the final 30 minutes of a 90 minute afternoon driving task (AusED) at six months. Epworth Sleepiness Scale, Functional Outcomes of Sleep Questionnaire, fat mass measured by dual-emission X-ray absorptiometry (DXA). MAIN RESULTS Armodafinil improved driving task performance over placebo at three months (12.9cm, 95%CI 4.1 to 21.7, p=0.004), but not the primary timepoint of six months (5.5cm, 95%CI -3.3 to 14.3, p=0.223). Patients on armodafinil lost 2.4kg more fat than those on placebo at six months (95%CI 0.9 to 4.0, p=0.002). Other secondary outcomes were not significantly improved. CONCLUSIONS Armodafinil did not improve driving task performance at the primary endpoint of six months. Armodafinil might be a useful adjunctive to weight loss in OSA patients rejecting conventional treatments but this needs to be directly tested in a specifically designed, properly powered clinical trial. Clinical trial registration available at www.anzctr.org.au, ID ACTRN12611000847910.

  14. Molecular Testing for miRNA, mRNA, and DNA on Fine-Needle Aspiration Improves the Preoperative Diagnosis of Thyroid Nodules With Indeterminate Cytology.

    PubMed

    Labourier, Emmanuel; Shifrin, Alexander; Busseniers, Anne E; Lupo, Mark A; Manganelli, Monique L; Andruss, Bernard; Wylie, Dennis; Beaudenon-Huibregtse, Sylvie

    2015-07-01

    Molecular testing for oncogenic mutations or gene expression in fine-needle aspirations (FNAs) from thyroid nodules with indeterminate cytology identifies a subset of benign or malignant lesions with high predictive value. This study aimed to evaluate a novel diagnostic algorithm combining mutation detection and miRNA expression to improve the diagnostic yield of molecular cytology. Surgical specimens and preoperative FNAs (n = 638) were tested for 17 validated gene alterations using the miRInform Thyroid test and with a 10-miRNA gene expression classifier generating positive (malignant) or negative (benign) results. Cross-sectional sampling of thyroid nodules with atypia of undetermined significance/follicular lesion of undetermined significance (AUS/FLUS) or follicular neoplasm/suspicious for a follicular neoplasm (FN/SFN) cytology (n = 109) was conducted at 12 endocrinology centers across the United States. Qualitative molecular results were compared with surgical histopathology to determine diagnostic performance and model clinical effect. Mutations were detected in 69% of nodules with malignant outcome. Among mutation-negative specimens, miRNA testing correctly identified 64% of malignant cases and 98% of benign cases. The diagnostic sensitivity and specificity of the combined algorithm was 89% (95% confidence interval [CI], 73-97%) and 85% (95% CI, 75-92%), respectively. At 32% cancer prevalence, 61% of the molecular results were benign with a negative predictive value of 94% (95% CI, 85-98%). Independently of variations in cancer prevalence, the test increased the yield of true benign results by 65% relative to mRNA-based gene expression classification and decreased the rate of avoidable diagnostic surgeries by 69%. Multiplatform testing for DNA, mRNA, and miRNA can accurately classify benign and malignant thyroid nodules, increase the diagnostic yield of molecular cytology, and further improve the preoperative risk-based management of benign nodules with

  15. Outcomes of single- vs double-cuff artificial urinary sphincter insertion in low- and high-risk profile male patients with severe stress urinary incontinence.

    PubMed

    Ahyai, Sascha A; Ludwig, Tim A; Dahlem, Roland; Soave, Armin; Rosenbaum, Clemens; Chun, Felix K-H; Fisch, Margit; Schmid, Marianne; Kluth, Luis A

    2016-10-01

    To evaluate continence and complication rates of bulbar single-cuff (SC) and distal bulbar double-cuff (DC) insertion in male patients with severe stress urinary incontinence (SUI) according to whether the men were considered low or high risk for unfavourable artificial urinary sphincter (AUS) outcomes. In all, 180 male patients who underwent AUS implantation between 2009 and 2013 were followed according to institutional standards. Patients with previous pelvic radiation therapy, open bulbar urethral or UI surgery ('high risk') underwent distal bulbar DC (123 patients) insertion, all others ('low risk') had proximal bulbar SC (57) insertion. Primary and secondary endpoints consisted of continence and complication rates. Kaplan-Meier analysis determined explantation-free survival, and Cox regression models assessed risk factors for persistent UI and explantation. The median follow-up was 24 months. Whereas there was no significant difference in pad usage/objective continence after SC vs DC insertion, superior rates of subjective/social continence and less persistent UI were reported by the patients with DC devices (all P ≤ 0.02). Overall, device explantation (erosion, infection or mechanical failure) occurred in 12.8% of patients. While early (<6 weeks) complication rates compared with SC patients were similar (P > 0.05), DC patients had a 5.7-fold higher risk of device explantation during late follow-up (P = 0.02) and significantly shorter explantation-free survival (log-rank, P = 0.003). Distal bulbar DC insertion in patients with a 'high-risk' profile (previous pelvic radiation, urethral surgery) leads to similar objective continence, but higher explantation rates when compared with patients considered 'low risk' with proximal bulbar SCs. Randomised controlled trials comparing both devices will be needed to determine whether the higher explanations rates are attributable to the DC device or to underlying risk factors. © 2016 The Authors BJU International

  16. Gebändigtes Knallgas: Brennstoffzellen im mobilen und stationären Einsatz

    NASA Astrophysics Data System (ADS)

    Waidhas, Manfred; Landes, Harald

    2001-07-01

    Die Brennstoffzelle hat aus technischer Sicht einen hohen Stand erreicht. Die PEMFC konnte ihre Zuverlässigkeit in einer Reihe von Nischenanwendungen, aber auch in Form erster mobiler und dezentraler Prototypen beweisen. Die SOFC und die MCFC konnten bereits in Anlagen von 100 kW und mehr in Erprobung gehen. Um jedoch wirtschaftlich konkur-renzfähig zu den etablierten Technologien der mobilen und dezentralen Energiewandlung zu werden, muss noch eine drastische Kostenreduktion sowohl beim Brennstoffzellen-Stack als auch bei den zu seinem Betrieb notwendigen Hilfsaggregaten erreicht werden. Für Fahrzeugantriebe muss außerdem eine Antwort auf die noch offene Treibstofffrage (Infrastruktur, H2-Erzeugung und H2-Speicherung) gefunden werden.

  17. Management of bladder neck stenosis and urethral stricture and stenosis following treatment for prostate cancer.

    PubMed

    Nicholson, Helen L; Al-Hakeem, Yasser; Maldonado, Javier J; Tse, Vincent

    2017-07-01

    The aim of this review is to examine all urethral strictures and stenoses subsequent to treatment for prostate cancer, including radical prostatectomy (RP), radiotherapy, high intensity focused ultrasound (HIFU) and cryotherapy. The overall majority respond to endoscopic treatment, including dilatation, direct visual internal urethrotomy (DVIU) or bladder neck incision (BNI). There are adjunct treatments to endoscopic management, including injections of corticosteroids and mitomycin C (MMC) and urethral stents, which remain controversial and are not currently mainstay of treatment. Recalcitrant strictures are most commonly managed with urethroplasty, while recalcitrant stenosis is relatively rare yet almost always associated with bothersome urinary incontinence, requiring bladder neck reconstruction and subsequent artificial urinary sphincter (AUS) implantation, or urinary diversion for the devastated outlet.

  18. Zeitspiel ist keine Alternative - Warum der Wandel zur Pflicht wird

    NASA Astrophysics Data System (ADS)

    Dieper, Stephan

    "Wege entstehen dadurch, dass man sie geht." (Franz Kafka) Die Welt der Digitalisierung ist voll von Wegen, die jemand gegangen ist, bevor dort ein Weg war. Manche dieser Wege stellten sich als Sackgasse heraus, manche als Abkürzung und aus anderen wurden ganze Wegenetze und Städte. Die Energiewelt wird durch den digitalen Wandel nicht verschont bleiben. Durch die intelligenten Messsysteme und die zugehörigen, neuen Strukturen werden energiefremden Wettbewerbern Chancen zum Markteintritt eröffnet. EVUs müssen sich darauf einstellen, dass der permanente Wandel nicht mehr enden wird. Doch auch den EVUs eröffnen sich Optionen. Um erfolgreich zu sein, müssen sie lernen loszugehen, ohne das genaue Ziel zu kennen.

  19. Digitalisierung des Bösen: Energiewirtschaft als Cyberopfer

    NASA Astrophysics Data System (ADS)

    Bartsch, Michael; Frey, Stefanie

    Die Energieversorgung ist eine kritische Infrastruktur, da alle anderen Sektoren von der Stromversorgung abhängig sind und eine Störung katastrophale Auswirkungen mit unvorhersehbaren Kaskadeneffekten mit sich bringen würde. Das oberste Ziel der Betreiber ist daher sicherzustellen, dass Maßnahmen für eine störungsfreie Stromversorgung ergriffen werden. Cyberangriffe stellen ein hohes Risiko für die Energieversorgung dar. Dabei kann die Energiewirtschaft von Massenphänomenen wie Cybercrime betroffen sein, aber auch Gegenstand von technisch komplexer Cybersabotage werden, wie bei dem Angriff Ende 2015 auf einen ukrainischen Energieversorger. Die Stromversorgung fiel für mehrere Stunden aus und hatte weitreichende Auswirkungen für die Bevölkerung und Unternehmen.

  20. Mono- and bi-functional arenethiols as surfactants for gold nanoparticles: synthesis and characterization

    PubMed Central

    2011-01-01

    Stable gold nanoparticles stabilized by different mono and bi-functional arenethiols, namely, benzylthiol and 1,4-benzenedimethanethiol, have been prepared by using a modified Brust's two-phase synthesis. The size, shape, and crystalline structure of the gold nanoparticles have been determined by high-resolution electron microscopy and full-pattern X-ray powder diffraction analyses. Nanocrystals diameters have been tuned in the range 2 ÷ 9 nm by a proper variation of Au/S molar ratio. The chemical composition of gold nanoparticles and their interaction with thiols have been investigated by X-ray photoelectron spectroscopy. In particular, the formation of networks has been observed with interconnected gold nanoparticles containing 1,4-benzenedimethanethiol as ligand. PMID:21711615

  1. Statistics in a Trilinear Interacting Stokes-Antistokes Boson System

    NASA Astrophysics Data System (ADS)

    Tänzler, W.; Schütte, F.-J.

    The statistics of a system of four boson modes is treated with simultaneous Stokes-Antistokes interaction taking place. The time evolution is calculated in full quantum manner but in short time approximation. Mean photon numbers and correlations of second order are calculated. Antibunching can be found in the laser mode and in the system of Stokes and Antistokes mode.Translated AbstractStatistik in einem trilinear wechselwirkenden Stokes-Antistokes-BosonensystemDie Statistik eines Systems von vier Bosonenmoden mit gleichzeitiger Stokes-Antistokes-Wechselwirkung wird bei vollquantenphysikalischer Beschreibung in Kurzzeitnäherung untersucht. Mittlere Photonenzahlen und Korrelationen zweiter Ordnung werden berechnet. Dabei wird Antibunching sowohl in der Lasermode allein als auch im System aus Stokes- und Antistokesmode gefunden.

  2. Ab Initio Calculations of Spin-Orbit Coupling for Heavy-Metal Containing Radicals

    NASA Astrophysics Data System (ADS)

    Cheng, Lan

    2016-06-01

    The perturbative treatment of spin-orbit coupling (SOC) on top of scalar-relativistic calculations is a cost-effective alternative to rigorous fully relativistic calculations. In this work the applicability of the perturbative scheme in the framework of spin-free exact two-component theory is demonstrated with calculations of SO splittings and SOC contributions to molecular properties in small heavy-metal containing radicals, including AuO, AuS, and ThO^+. The equation of motion coupled cluster techniques have been used to accurately account for the electron-correlation effects in these radicals, and basis-set effects are carefully analyzed. The computed results are compared with experimental measurements for SO splittings and dipole moments when available.

  3. Topological Insulators in Ternary Compounds with a Honeycomb Lattice

    NASA Astrophysics Data System (ADS)

    Zhang, Hai-Jun; Chadov, Stanislav; Müchler, Lukas; Yan, Binghai; Qi, Xiao-Liang; Kübler, Jürgen; Zhang, Shou-Cheng; Felser, Claudia

    2011-04-01

    We investigate a new class of ternary materials such as LiAuSe and KHgSb with a honeycomb structure in Au-Se and Hg-Sb layers. We demonstrate the band inversion in these materials similar to HgTe, which is a strong precondition for existence of the topological surface states. In contrast with graphene, these materials exhibit strong spin-orbit coupling and a small direct band gap at the Γ point. Since these materials are centrosymmetric, it is straightforward to determine the parity of their wave functions, and hence their topological character. Surprisingly, the compound with strong spin-orbit coupling (KHgSb) is trivial, whereas LiAuSe is found to be a topological insulator.

  4. Input-form data for the U.S. Geological Survey assessment of the Mississippian Barnett Shale of the Bend Arch–Fort Worth Basin Province, 2015

    USGS Publications Warehouse

    Marra, Kristen R.; Charpentier, Ronald R.; Schenk, Christopher J.; Lewan, Michael D.; Leathers-Miller, Heidi M.; Klett, Timothy R.; Gaswirth, Stephanie B.; Le, Phuong A.; Mercier, Tracey J.; Pitman, Janet K.; Tennyson, Marilyn E.

    2016-07-15

    In 2015, the U.S. Geological Survey (USGS) released an updated assessment of undiscovered, technically recoverable shale gas and shale oil resources of the Mississippian Barnett Shale in north-central Texas (Marra and others, 2015). The Barnett Shale was assessed using the standard continuous (unconventional) methodology established by the USGS for two assessment units (AUs): (1) Barnett Continuous Gas AU, and (2) Barnett Mixed Continuous Gas and Oil AU. A third assessment unit, the Western Barnett Continuous Oil AU, was also defined but was not quantitatively assessed because of limited data within the extent of the AU. The purpose of this report is to provide supplemental documentation of the quantitative input parameters applied in the Barnett Shale assessment.

  5. Herstellung von Chitosan und einige Anwendungen

    NASA Astrophysics Data System (ADS)

    Struszczyk, Marcin Henryk

    2001-05-01

    1. Die Deacetylierung von crabshell - Chitosan führte gleichzeitig zu einem drastischen Abfall der mittleren viscosimetrischen Molmasse ( Mv), insbesondere wenn die Temperatur und die Konzentration an NaOH erhöht werden. Diese Parameter beeinflussten jedoch nicht den Grad der Deacetylierung (DD). Wichtig ist jedoch die Quelle des Ausgangsmaterials: Chitin aus Pandalus borealis ist ein guter Rohstoff für die Herstellung von Chitosan mit niedrigem DD und gleichzeitig hoher mittlerer Mv, während Krill-Chitin (Euphausia superba) ein gutes Ausgangsmaterial zur Herstellung von Chitosan mit hohem DD und niedrigem Mv ist. Chitosan, das aus Insekten (Calliphora erythrocephala), unter milden Bedingungen (Temperatur: 100°C, NaOH-Konzentration: 40 %, Zeit: 1-2h ) hergestellt wurde, hatte die gleichen Eigenschaften hinsichtlich DD und Mv wie das aus Krill hergestellte Chitosan. Der Bedarf an Zeit, Energie und NaOH ist für die Herstellung von Insekten-Chitosan geringer als für crabshell-Chitosan vergleichbare Resultaten für DD und Mv. 2. Chitosan wurde durch den Schimmelpilz Aspergillus fumigatus zu Chitooligomeren fermentiert. Die Ausbeute beträgt 25%. Die Chitooligomere wurden mit Hilfe von HPLC und MALDI-TOF-Massenspektrmetrie identifiziert. Die Fermentationsmischung fördert die Immunität von Pflanzen gegen Bakterien und Virusinfektion. Die Zunahme der Immunität schwankt jedoch je nach System Pflanze-Pathogen. Die Fermentation von Chitosan durch Aspergillus fumigatus könnte eine schnelle und billige Methode zur Herstellung von Chitooligomeren mit guter Reinheit und Ausbeute sein. Eine partiell aufgereinigte Fermentationsmischung dieser Art könnte in der Landwirtschaft als Pathogeninhibitor genutzt werden. Durch kontrollierte Fermentation, die Chitooligomere in definierter Zusammensetzung (d.h. definierter Verteilung des Depolymerisationsgrades) liefert, könnte man zu Mischungen kommen, die für die jeweilige Anwendung eine optimale Bioaktivität besitzen. 3

  6. A comparative DFT study of interactions of Au and small gold clusters Aun (n = 2-4) with CH3S and CH2 radicals

    NASA Astrophysics Data System (ADS)

    Blaško, Martin; Rajský, Tomáš; Urban, Miroslav

    2017-03-01

    We compare DFT binding energies (BEs) of Au and small gold clusters interacting with CH3S and CH2 ligands (Aun-L complexes, n = 1-4). The spin state and the binding mechanism in Aun-L varies with the participation of singly occupied non-bonding orbitals or doubly occupied lone-pair orbitals of a ligand and on the number of atoms (even or odd) of Aun. The highest BE, 354 kJ/mol, exhibits the Au3-CH2 complex with the covalent bond in which participate two singly occupied orbitals of the triplet state of CH2. With CH3S the highest BE (277 kJ/mol) is calculated for Au3-SCH3 with the single Au-S bond.

  7. Management of bladder neck stenosis and urethral stricture and stenosis following treatment for prostate cancer

    PubMed Central

    Nicholson, Helen L.; Al-Hakeem, Yasser; Maldonado, Javier J.

    2017-01-01

    The aim of this review is to examine all urethral strictures and stenoses subsequent to treatment for prostate cancer, including radical prostatectomy (RP), radiotherapy, high intensity focused ultrasound (HIFU) and cryotherapy. The overall majority respond to endoscopic treatment, including dilatation, direct visual internal urethrotomy (DVIU) or bladder neck incision (BNI). There are adjunct treatments to endoscopic management, including injections of corticosteroids and mitomycin C (MMC) and urethral stents, which remain controversial and are not currently mainstay of treatment. Recalcitrant strictures are most commonly managed with urethroplasty, while recalcitrant stenosis is relatively rare yet almost always associated with bothersome urinary incontinence, requiring bladder neck reconstruction and subsequent artificial urinary sphincter (AUS) implantation, or urinary diversion for the devastated outlet. PMID:28791228

  8. Auf dem Weg zur digitalen Fakultät - moderne IT Infrastruktur am Beispiel des Physik-Departments der TU München

    NASA Astrophysics Data System (ADS)

    Homolka, Josef

    Der Geschäftsbetrieb einer Universität ist durch zunehmende Digitalisierung und Nutzung elektronischer Medien gekennzeichnet. Die Einführung immer leistungsfähigerer zentraler IT-Systeme führt zu einer komplexen Vielfalt heterogener Benutzer- und Administrationsschnittstellen. Zur Schaffung einer umfassenden benutzerfreundlichen und nahtlosen IT-Infrastruktur ist die Beteiligung aller organisatorischen Einheiten und Ebenen erforderlich. Am Physik-Departement der Technischen Universität München wurden unter Integration eigener Ressourcen mit zentralen Ressourcen, die im Rahmen des IntegraTUM Projektes entwickelt und bereitgestellt wurden, existierende Dienste weiterentwickelt und neue Angebote aufgebaut. Das System, bestehend aus den Komponenten Netzwerk, Arbeitsplatzrechner, Serverinfrastruktur, E-Mail-Service, WWWDienst, Datenhaltung und Software wurde für die Nutzerkreise Studenten und Mitarbeiter im Hinblick auf Anwenderfreundlichkeit und nahtlosen Zugriff optimiert.

  9. Biogeochemische Stoffkreisläufe

    NASA Astrophysics Data System (ADS)

    Brüggemann, Nicolas; Butterbach-Bahl, Klaus

    Der Klimawandel wirkt sich auf biogeochemische Stoffkreisläufe aus. So kann davon ausgegangen werden, dass sich die ökosystemaren Kohlenstoff- und Stickstoffflüsse zwischen Biosphäre, Atmosphäre und Hydrosphäre zukünftig deutlich verändern werden, mit positiven wie auch negativen Rückkopplungseffekten auf den Klimawandel. Der Schwerpunkt dieses Kapitels liegt auf wenig intensiv bis nicht genutzten terrestrischen Ökosystemen, da intensiv landwirtschaftlich genutzte Systeme deutlich stärker von Nutzung und Management beeinflusst werden, als durch den Klimawandel. Die zu erwartenden Veränderungen für die einzelnen betroffenen terrestrischen Ökosysteme werden, soweit möglich, nach Faktoren getrennt dargestellt. Im Fokus stehen Wälder, Moore und Küstengebiete.

  10. Regionalstatistik

    NASA Astrophysics Data System (ADS)

    Eppmann, Helmut; Fürnrohr, Michael

    Viele Aufgaben in Politik, Wirtschaft und Gesellschaft erfordern nicht nur globale, sondern auch regionale Lösungen. Die Regionalstatistik ist deshalb unentbehrlich für viele Planungs- und Entscheidungsprozesse. Ihren Ausbau und ihre Nutzung zu fördern, hat sich der Ausschuss für Regionalstatistik der Deutschen Statistischen Gesellschaft zum Ziel gesetzt. Dieses Kapitel stellt zunächst einige Grundlagen der Regionalstatistik und die Aufgaben des Ausschusses dar. Es folgen das umfangreiche regionalstatistische Datenangebot der Statistischen Ämter des Bundes und der Länder und seine Nutzung. Ein ergänzender Abschnitt ist der Arbeit des Instituts für Bau-, Stadt- und Raumforschung gewidmet. Das Kapitel schließt mit einem Ausblick auf die Weiterentwicklung des regionalstatistischen Datenangebotes aus Sicht der amtlichen Statistik.

  11. Blocking of conditioned taste avoidance induced by wheel running.

    PubMed

    Pierce, W David; Heth, C Donald

    2010-01-01

    In Experiment 1, compared to non-reinforced presentation of a food stimulus (A-->no US), the association of a food stimulus with wheel running (A-->US) blocked subsequent avoidance of a distinctive flavor (X), when both the food and flavor were followed by wheel running (AX-->US). Experiment 2 replicated and extended the blocking effect, demonstrating that the amount of avoidance of X after AX-->wheel training depended on the correlation between A-alone trials and wheel running-the predictiveness of the A stimulus. The present study is the first to demonstrate associative blocking of conditioned taste avoidance (CTA) induced by wheel running and strongly implicates associative learning as the basis for this kind of avoidance. 2009 Elsevier B.V. All rights reserved.

  12. Theoretical prediction of a new stable structure of Au28(SR)20 cluster

    NASA Astrophysics Data System (ADS)

    Sun, Xiangxiang; Wang, Pu; Xiong, Lin; Pei, Yong

    2018-07-01

    A new stable structure of Au28(SR)20 cluster is predicted, which has the same gold core as two known structures but different Au-S framework. The new Au28(SR)20 cluster is proposed to be a key link in the evolution of Au22(SR)18, Au34(SR)22 and Au40(SR)24 clusters. The four clusters belong to a homogenous Au16+6N(SR)16+2N series (N = 1-4). The relative stabilities of the new Au28 isomer structure were confirmed by density functional theory calculations including dispersion corrections (DFT-D). It is found that upon protection of certain SR ligands, the new isomer structure has lower or comparable energies to two known cluster structures.

  13. Realistic facial animation generation based on facial expression mapping

    NASA Astrophysics Data System (ADS)

    Yu, Hui; Garrod, Oliver; Jack, Rachael; Schyns, Philippe

    2014-01-01

    Facial expressions reflect internal emotional states of a character or in response to social communications. Though much effort has been taken to generate realistic facial expressions, it still remains a challenging topic due to human being's sensitivity to subtle facial movements. In this paper, we present a method for facial animation generation, which reflects true facial muscle movements with high fidelity. An intermediate model space is introduced to transfer captured static AU peak frames based on FACS to the conformed target face. And then dynamic parameters derived using a psychophysics method is integrated to generate facial animation, which is assumed to represent natural correlation of multiple AUs. Finally, the animation sequence in the intermediate model space is mapped to the target face to produce final animation.

  14. Anthropometric measures and absolute cardiovascular risk estimates in the Australian Diabetes, Obesity and Lifestyle (AusDiab) Study.

    PubMed

    Chen, Lei; Peeters, Anna; Magliano, Dianna J; Shaw, Jonathan E; Welborn, Timothy A; Wolfe, Rory; Zimmet, Paul Z; Tonkin, Andrew M

    2007-12-01

    Framingham risk functions are widely used for prediction of future cardiovascular disease events. They do not, however, include anthropometric measures of overweight or obesity, now considered a major cardiovascular disease risk factor. We aimed to establish the most appropriate anthropometric index and its optimal cutoff point for use as an ancillary measure in clinical practice when identifying people with increased absolute cardiovascular risk estimates. Analysis of a population-based, cross-sectional survey was carried out. The 1991 Framingham prediction equations were used to compute 5 and 10-year risks of cardiovascular or coronary heart disease in 7191 participants from the Australian Diabetes, Obesity and Lifestyle Study (1999-2000). Receiver operating characteristic curve analysis was used to compare measures of body mass index (BMI), waist circumference, and waist-to-hip ratio in identifying participants estimated to be at 'high', or at 'intermediate or high' absolute risk. After adjustment for BMI and age, waist-to-hip ratio showed stronger correlation with absolute risk estimates than waist circumference. The areas under the receiver operating characteristic curve for waist-to-hip ratio (0.67-0.70 in men, 0.64-0.74 in women) were greater than those for waist circumference (0.60-0.65, 0.59-0.71) or BMI (0.52-0.59, 0.53-0.66). The optimal cutoff points of BMI, waist circumference and waist-to-hip ratio to predict people at 'high', or at 'intermediate or high' absolute risk estimates were 26 kg/m2, 95 cm and 0.90 in men, and 25-26 kg/m2, 80-85 cm and 0.80 in women, respectively. Measurement of waist-to-hip ratio is more useful than BMI or waist circumference in the identification of individuals estimated to be at increased risk for future primary cardiovascular events.

  15. Investitionen aus den BRIC-Staaten. Grund zur Sorge für Unternehmen, Beschäftigte und Kommunen?

    NASA Astrophysics Data System (ADS)

    Franz, Martin; Henn, Sebastian

    2017-04-01

    Investments from BRIC countries - Brazil, Russia, India and China - are playing an increasingly important role in Germany. However, both the public and the potentially affected labour force often adopt sceptical, and sometimes even hostile attitudes towards investors from these countries. This article shows that apart from a few exceptions investors from the BRIC countries are generally better than their reputation precedes. An important conclusion drawn in this paper is that investors should not be received with stereotypes. Rather, it is necessary to perform deeper investigations into their strategies and the specific investment goals in each case. This is all the more necessary to ensure that investments from BRIC countries do not conflict with the domestic firms' interests or of their personnel. In fact, they can assist to increase the competitiveness of German firms, and as such not only prove beneficial for the workforce but also for Germany as a business destination.

  16. Relation between fasting glucose and retinopathy for diagnosis of diabetes: three population-based cross-sectional studies.

    PubMed

    Wong, Tien Y; Liew, Gerald; Tapp, Robyn J; Schmidt, Maria Inês; Wang, Jie Jin; Mitchell, Paul; Klein, Ronald; Klein, Barbara E K; Zimmet, Paul; Shaw, Jonathan

    2008-03-01

    The WHO and American Diabetes Association criteria for diagnosing diabetes mellitus assume the presence of a glycaemic threshold with high sensitivity for identifying retinopathy. However, this assumption is based on data from three previous studies that had important limitations in detecting retinopathy. We aimed to provide updated data for the relation between fasting plasma glucose (FPG) and retinopathy, and to assess the diagnostic accuracy of current FPG thresholds in identifying both prevalent and incident retinopathy. We examined the data from three cross-sectional adult populations: those in the Blue Mountains Eye Study (BMES, Australia, n=3162), the Australian Diabetes, Obesity and Lifestyle Study (AusDiab, Australia, n=2182), and the Multi-Ethnic Study of Atherosclerosis (MESA, USA, n=6079). Retinopathy was diagnosed from multiple retinal photographs of each eye, and graded according to the modified Airlie House Classification system. Plasma glucose concentrations were measured from fasting venous blood samples. The overall prevalence of retinopathy was 11.5% in BMES (95% CI 10.4-12.6%), 9.6% in AusDiab (8.4-10.9), and 15.8% in MESA (14.9-16.7). However, we found inconsistent evidence of a uniform glycaemic threshold for prevalent and incident retinopathy, with analyses suggesting a continuous relation. The widely used diabetes FPG cutoff of 7.0 mmol/L or higher had sensitivity less than 40% (range 14.8-39.1) for detecting retinopathy, with specificity between 80.8% and 95.8%. The area under receiver operating characteristic curves for FPG and retinopathy was low and ranged from 0.56 to 0.61. We saw no evidence of a clear and consistent glycaemic threshold for the presence or incidence of retinopathy across different populations. The current FPG cutoff of 7.0 mmol/L used to diagnose diabetes did not accurately identify people with and without retinopathy. These findings suggest that the criteria for diagnosing diabetes could need reassessment.

  17. Incentives for retaining and motivating health workers in Pacific and Asian countries

    PubMed Central

    Henderson, Lyn N; Tulloch, Jim

    2008-01-01

    This paper was initiated by the Australian Agency for International Development (AusAID) after identifying the need for an in-depth synthesis and analysis of available literature and information on incentives for retaining health workers in the Asia-Pacific region. The objectives of this paper are to: 1. Highlight the situation of health workers in Pacific and Asian countries to gain a better understanding of the contributing factors to health worker motivation, dissatisfaction and migration. 2. Examine the regional and global evidence on initiatives to retain a competent and motivated health workforce, especially in rural and remote areas. 3. Suggest ways to address the shortages of health workers in Pacific and Asian countries by using incentives. The review draws on literature and information gathered through a targeted search of websites and databases. Additional reports were gathered through AusAID country offices, UN agencies, and non-government organizations. The severe shortage of health workers in Pacific and Asian countries is a critical issue that must be addressed through policy, planning and implementation of innovative strategies – such as incentives – for retaining and motivating health workers. While economic factors play a significant role in the decisions of workers to remain in the health sector, evidence demonstrates that they are not the only factors. Research findings from the Asia-Pacific region indicate that salaries and benefits, together with working conditions, supervision and management, and education and training opportunities are important. The literature highlights the importance of packaging financial and non-financial incentives. Each country facing shortages of health workers needs to identify the underlying reasons for the shortages, determine what motivates health workers to remain in the health sector, and evaluate the incentives required for maintaining a competent and motivated health workforce. Decision-making factors and

  18. Patterns of genetic differentiation at MHC class I genes and microsatellites identify conservation units in the giant panda.

    PubMed

    Zhu, Ying; Wan, Qiu-Hong; Yu, Bin; Ge, Yun-Fa; Fang, Sheng-Guo

    2013-10-22

    Evaluating patterns of genetic variation is important to identify conservation units (i.e., evolutionarily significant units [ESUs], management units [MUs], and adaptive units [AUs]) in endangered species. While neutral markers could be used to infer population history, their application in the estimation of adaptive variation is limited. The capacity to adapt to various environments is vital for the long-term survival of endangered species. Hence, analysis of adaptive loci, such as the major histocompatibility complex (MHC) genes, is critical for conservation genetics studies. Here, we investigated 4 classical MHC class I genes (Aime-C, Aime-F, Aime-I, and Aime-L) and 8 microsatellites to infer patterns of genetic variation in the giant panda (Ailuropoda melanoleuca) and to further define conservation units. Overall, we identified 24 haplotypes (9 for Aime-C, 1 for Aime-F, 7 for Aime-I, and 7 for Aime-L) from 218 individuals obtained from 6 populations of giant panda. We found that the Xiaoxiangling population had the highest genetic variation at microsatellites among the 6 giant panda populations and higher genetic variation at Aime-MHC class I genes than other larger populations (Qinling, Qionglai, and Minshan populations). Differentiation index (FST)-based phylogenetic and Bayesian clustering analyses for Aime-MHC-I and microsatellite loci both supported that most populations were highly differentiated. The Qinling population was the most genetically differentiated. The giant panda showed a relatively higher level of genetic diversity at MHC class I genes compared with endangered felids. Using all of the loci, we found that the 6 giant panda populations fell into 2 ESUs: Qinling and non-Qinling populations. We defined 3 MUs based on microsatellites: Qinling, Minshan-Qionglai, and Daxiangling-Xiaoxiangling-Liangshan. We also recommended 3 possible AUs based on MHC loci: Qinling, Minshan-Qionglai, and Daxiangling-Xiaoxiangling-Liangshan. Furthermore, we recommend

  19. Windkraftanlagen

    NASA Astrophysics Data System (ADS)

    Surek, Dominik

    Windturbinenanlagen nutzen die kinetische Energie des Windes bei Geschwindigkeiten von c=4 m/s bis 25 m/s in Nabenhöhe des Windrades zur Stromerzeugung. Die oben genannten Windgeschwindigkeiten liegen im Grenzschichtbereich der ebenen Strömung (Abb. 67.1), die bei Höhen von h=100 m bis 1000 m liegen und in Großstädten mit Skylines bis 2000 m. Die größten Windturbinentürme erreichen gegenwärtig Nabenhöhen von h=160 m und Windraddurchmesser von d=130 m, d. h. mit Flügellängen von L=65 m. Die Windturbinen werden vorrangig mit 3 Schaufeln ausgeführt. Windturbinen mit einer und zwei Schaufeln waren Versuchsgeräte. Die Drehzahl von Windturbinen für Leistungen von P_{T}=2 MW betragen n=12 bis 20 min{}^{-1}. Das Windrad entzieht dem Wind mit der Anströmgeschwindigkeit c 1 nach Betz die Geschwindigkeitsdifferenz c2=(2/3) c1. Der Rest der Windgeschwindigkeit wird für die Abströmung des Windes im Leebereich c3=c1/3 benötigt. Durch den Entzug der Geschwindigkeit im Laufrad bläht sich der Abströmdurchmesser auf d3> d1 auf, der bei der Installation von Windturbinen zu beachten ist (Abb. 67.2) [Gasch und Twele(2013)]. Um die Windturbinen bei starkem Wind von c {}1> 25 m/s zu schützen, werden die Laufschaufeln durch Pitch- oder Stall-Anlagen aus dem Wind gedreht, so dass die Strömung an den Schaufeln abreißt und das Windrad in die Ruhestellung gelangt. Bei der Windgeschwindigkeit c1=25 m/s bis 34 m/s wird der Windrotor abgeschaltet. Die zulässige Maximalgeschwindigkeit liegt aus Festigkeitsgründen etwa bei . Die aktive Blattverdrehung (Pitchregelung) stellt eine Blattwinkelregelung dar, wobei die Profilnase in die Anströmung gedreht wird. Sie benötigen für die Drehzahlreduzierung keine mechanische Bremse.

  20. Incentives for retaining and motivating health workers in Pacific and Asian countries.

    PubMed

    Henderson, Lyn N; Tulloch, Jim

    2008-09-15

    This paper was initiated by the Australian Agency for International Development (AusAID) after identifying the need for an in-depth synthesis and analysis of available literature and information on incentives for retaining health workers in the Asia-Pacific region. The objectives of this paper are to: 1. Highlight the situation of health workers in Pacific and Asian countries to gain a better understanding of the contributing factors to health worker motivation, dissatisfaction and migration. 2. Examine the regional and global evidence on initiatives to retain a competent and motivated health workforce, especially in rural and remote areas. 3. Suggest ways to address the shortages of health workers in Pacific and Asian countries by using incentives. The review draws on literature and information gathered through a targeted search of websites and databases. Additional reports were gathered through AusAID country offices, UN agencies, and non-government organizations. The severe shortage of health workers in Pacific and Asian countries is a critical issue that must be addressed through policy, planning and implementation of innovative strategies--such as incentives--for retaining and motivating health workers. While economic factors play a significant role in the decisions of workers to remain in the health sector, evidence demonstrates that they are not the only factors. Research findings from the Asia-Pacific region indicate that salaries and benefits, together with working conditions, supervision and management, and education and training opportunities are important. The literature highlights the importance of packaging financial and non-financial incentives. Each country facing shortages of health workers needs to identify the underlying reasons for the shortages, determine what motivates health workers to remain in the health sector, and evaluate the incentives required for maintaining a competent and motivated health workforce. Decision-making factors and

  1. Antibakterielle In-vitro-Wirksamkeit ätherischer Öle gegen veterinärmedizinisch relevante Keime klinischer Isolate von Hunden, Katzen und Pferden.

    PubMed

    Bismarck, Doris; Schneider, Marianne; Müller, Elisabeth

    Einleitung: Ätherische Öle sind die Grundlage der Aromatherapie. Unter anderem wird ihnen eine antibakterielle Wirkung zugeschrieben. In dieser Studie sollte die In-vitro-Wirksamkeit ätherischer Öle gegen ein breites Spektrum veterinärmedizinisch relevanter Erreger getestet werden. Methoden: Die antibakterielle Aktivität von 16 ätherischen Ölen wurde mittels Agardiffusionstest bestimmt. Getestet wurden grampositive und gramnegative Erreger, die aus klinischen Isolaten von Hunden, Katzen und Pferden aus der veterinärmedizinischen Routinediagnostik stammten. Die Einteilung der Wirksamkeit in nicht, gering-, mittel- und hochgradig wirksam erfolgte anhand der Größe der Hemmhofradien des Bakterienwachstums. Ergebnisse: Generell zeigten sich sowohl grampositive als auch gramnegative Erreger empfindlich gegen einige der getesteten ätherischen Öle. Nicht nur gegen Staphylokokken, sondern auch gegen Methicillin-resistente Stämme der Staphylokokken wiesen die ätherischen Öle in vitro eine nicht zu vernachlässigende Wirkung auf. Pasteurella multocida stellte sich als eher sensibler Keim heraus, während Pseudomonas aeruginosa als vollkommen resistenter Keim eine Ausnahme bildete. Teebaum-, Oregano-, und Bergbohnenkrautöl waren die potentesten Öle. Zusätzlich zeigten sich bei den grampositiven Erregern Lemongrasöl und bei den gramnegativen Erregern Thymianöl als gut wirksam. Schlussfolgerung: Ätherische Öle verfügen in vitro über eine antibakterielle Aktivität gegen klinische Isolate von Hunden, Katzen und Pferden. Diese Studie bietet eine Grundlage für die Anwendung ätherischer Öle in der Veterinärmedizin. Es zeichneten sich Tendenzen im Wirkspektrum einzelner ätherischer Öle bzw. im Grad der Wirksamkeit ätherischer Öle hinsichtlich einzelner Erregerspezies ab, allerdings lässt sich keine sichere Vorhersage über ihre Wirksamkeit gegen einen spezifischen Keim eines individuellen Patienten treffen. Deswegen sollte vor einer Therapie mit

  2. Comparison of four contemporary risk models at predicting mortality after aortic valve replacement.

    PubMed

    Wang, Tom Kai Ming; Choi, David H M; Stewart, Ralph; Gamble, Greg; Haydock, David; Ruygrok, Peter

    2015-02-01

    Risk stratification for aortic valve replacement (AVR) is desirable given the increased demand for intervention and the introduction of transcatheter aortic valve implantation. We compared the prognostic utility of the European System for Cardiac Operative Risk Evaluation (EuroSCORE), EuroSCORE II, Society of Thoracic Surgeons (STS) score, and an Australasian model (Aus-AVR score) for AVR. We retrospectively calculated the 4 risk scores for patients undergoing isolated AVR at Auckland City Hospital from 2005 to 2012 and assessed their discrimination and calibration for short- and long-term mortality. A total of 620 patients were followed up for 3.8 ± 2.4 years, with an operative mortality of 2.9% (n = 18). The mean EuroSCORE, EuroSCORE II, STS score, and Aus-AVR score was 8.7% ± 8.3%, 3.8% ± 4.7%, 2.8% ± 2.7%, and 3.2% ± 4.8%, respectively. The corresponding C-statistics for operative mortality were 0.752 (95% confidence interval [CI], 0.652-0.852), 0.711 (95% CI, 0.607-0.815), 0.716 (95% CI, 0.593-0.837), and 0.684 (95% CI, 0.557-0.811). The corresponding Hosmer-Lemeshow test P and chi-square values for calibration were .007 and 21.1, .125 and 12.6, .753 and 5.0, and .468 and 7.7. The corresponding Brier scores were 0.0348, 0.0278, 0.0276, and 0.0294. Independent predictors of operative mortality included critical preoperative state, atrial fibrillation, extracardiac arteriopathy, and mitral stenosis. The log-rank test P values were all <.001 for mortality during follow-up for all 4 scores, stratified by quintile. All 4 risk scores discriminated operative mortality after isolated AVR. The EuroSCORE had poor calibration, overestimating operative mortality, although the other 3 scores fitted well with contemporary outcomes. The STS score was the best calibrated in the highest quintile of operative risk. Copyright © 2015 The American Association for Thoracic Surgery. Published by Elsevier Inc. All rights reserved.

  3. Genetic Architecture of Aluminum Tolerance in Rice (Oryza sativa) Determined through Genome-Wide Association Analysis and QTL Mapping

    PubMed Central

    Famoso, Adam N.; Zhao, Keyan; Clark, Randy T.; Tung, Chih-Wei; Wright, Mark H.; Bustamante, Carlos; Kochian, Leon V.; McCouch, Susan R.

    2011-01-01

    Aluminum (Al) toxicity is a primary limitation to crop productivity on acid soils, and rice has been demonstrated to be significantly more Al tolerant than other cereal crops. However, the mechanisms of rice Al tolerance are largely unknown, and no genes underlying natural variation have been reported. We screened 383 diverse rice accessions, conducted a genome-wide association (GWA) study, and conducted QTL mapping in two bi-parental populations using three estimates of Al tolerance based on root growth. Subpopulation structure explained 57% of the phenotypic variation, and the mean Al tolerance in Japonica was twice that of Indica. Forty-eight regions associated with Al tolerance were identified by GWA analysis, most of which were subpopulation-specific. Four of these regions co-localized with a priori candidate genes, and two highly significant regions co-localized with previously identified QTLs. Three regions corresponding to induced Al-sensitive rice mutants (ART1, STAR2, Nrat1) were identified through bi-parental QTL mapping or GWA to be involved in natural variation for Al tolerance. Haplotype analysis around the Nrat1 gene identified susceptible and tolerant haplotypes explaining 40% of the Al tolerance variation within the aus subpopulation, and sequence analysis of Nrat1 identified a trio of non-synonymous mutations predictive of Al sensitivity in our diversity panel. GWA analysis discovered more phenotype–genotype associations and provided higher resolution, but QTL mapping identified critical rare and/or subpopulation-specific alleles not detected by GWA analysis. Mapping using Indica/Japonica populations identified QTLs associated with transgressive variation where alleles from a susceptible aus or indica parent enhanced Al tolerance in a tolerant Japonica background. This work supports the hypothesis that selectively introgressing alleles across subpopulations is an efficient approach for trait enhancement in plant breeding programs and

  4. Double-mode Two-photon Absorption and Enhanced Photon Antibunching Due to Interference

    NASA Astrophysics Data System (ADS)

    Bandilla, A.; Ritze, H.-H.

    Inspired by results of interfering signal and idler from a nondegenerate parametric amplifier we investigate the photon statistics of the resulting field after interference of two components subjected to double-mode two-photon absorption. This absorption process leads to a strong correlation of the participating modes, which can be used to generate fields with photon antibunching in interference experiments. In addition the photon number can be made small, which produces enhanced antibunching.Translated AbstractZwei-Photonen-Absorption aus zwei Moden und durch Interferenz verstärktes photon antibunchingDie quantenmechanische Betrachtung der Interferenz führt zu neuen Ergebnissen, wenn Felder ohne klassisches Analogon betrachtet werden. Insbesondere ergibt sich durch die Reduktion der Photonenzahl durch Interferenz eine effektive Verstärkung des Photon Antibunching, wie von den Verfassern in vorhergehenden Arbeiten gezeigt wurde. Die vorliegende Untersuchung betrachtet die Interferenz von zwei korrelierten Moden, wobei die Korrelation durch Zwei-Photonen-Absorption aus den beiden Moden zustande kommt. In jeder einzelnen Mode ergibt sich lediglich ein gewisses Bunching, wenn man mit kohärentem Licht in beiden Moden beginnt. Es wird die Interferenz der Feldstärke-Komponenten in bestimmten Polarisationsrichtungen untersucht. Zur Vereinfachung wird in den betrachteten Moden die gleiche Anfangsphotonenzahl vorausgesetzt und der Analysator auf minimale Transmittanz gebracht. Das eigentliche Signal entsteht dann durch Einführung einer endlichen Phasenverschiebung zwischen den beiden Moden. Dieses Signal zeigt Antibunching und kann in seiner Intensität beliebig variiert werden, was wegen des (1/n)-Charakters des Antibunching zu seiner Verstärkung führt. Ferner wird gezeigt, daß die zunächst für zwei linear polarisierte Moden durchgeführte Rechnung auf zwei zirkulare Moden sowie auf zwei gegenläufige Strahlen bei der dopplerfreien Zwei-Quanten-Absorption

  5. Methicillin-resistant Staphylococcus aureus in the Australian community: an evolving epidemic.

    PubMed

    Nimmo, Graeme R; Coombs, Geoffrey W; Pearson, Julie C; O'Brien, Francis G; Christiansen, Keryn J; Turnidge, John D; Gosbell, Iain B; Collignon, Peter; McLaws, Mary-Louise

    2006-04-17

    To describe antimicrobial resistance and molecular epidemiology of methicillin-resistant Staphylococcus aureus (MRSA) isolated in community settings in Australia. Survey of S. aureus isolates collected prospectively Australia-wide between July 2004 and February 2005; results were compared with those of similar surveys conducted in 2000 and 2002. Up to 100 consecutive, unique clinical isolates of S. aureus from outpatient settings were collected at each of 22 teaching hospital and five private laboratories from cities in all Australian states and territories. They were characterised by antimicrobial susceptibilities (by agar dilution methods), coagulase gene typing, pulsed-field gel electrophoresis, multilocus sequence typing, SCCmec typing and polymerase chain reaction tests for Panton-Valentine leukocidin (PVL) gene. 2652 S. aureus isolates were collected, of which 395 (14.9%) were MRSA. The number of community-associated MRSA (CA-MRSA) isolates rose from 4.7% (118/2498) of S. aureus isolates in 2000 to 7.3% (194/2652) in 2004 (P = 0.001). Of the three major CA-MRSA strains, WA-1 constituted 45/257 (18%) of MRSA in 2000 and 64/395 (16%) in 2004 (P = 0.89), while the Queensland (QLD) strain increased from 13/257 (5%) to 58/395 (15%) (P = 0.0004), and the south-west Pacific (SWP) strain decreased from 33/257 (13%) to 26/395 (7%) (P = 0.01). PVL genes were detected in 90/195 (46%) of CA-MRSA strains, including 5/64 (8%) of WA-1, 56/58 (97%) of QLD, and 25/26 (96%) of SWP strains. Among health care-associated MRSA strains, all AUS-2 and AUS-3 isolates were multidrug-resistant, and UK EMRSA-15 isolates were resistant to ciprofloxacin and erythromycin (50%) or to ciprofloxacin alone (44%). Almost all (98%) of CA-MRSA strains were non-multiresistant. Community-onset MRSA continues to spread throughout Australia. The hypervirulence determinant PVL is often found in two of the most common CA-MRSA strains. The rapid changes in prevalence emphasise the importance of ongoing

  6. IQM-Reifegradmodell für die Bewertung und Verbesserung des Information Lifecycle Management Prozesses

    NASA Astrophysics Data System (ADS)

    Baškarada, Saša; Gebauer, Marcus; Koronios, Andy; Gao, Jing

    Heutige Organisationen produzieren und speichern mehr Informationen als je zuvor. Der resultierende Informationsüberfluss, zusammen mit einem Mangel an Qualitätssicherung für das Information Lifecycle Management, führt zu einem unsicheren Status der Informationsqualität in vielen Organisationen. Weiterhin hat sich herausgestellt, dass das Bewerten, Verbessern und Steuern der Informationsqualität ein offenkundig schwieriges Unterfangen ist. Dieses Kapitel stellt ein Modell zur Bewertung und Verbesserung der Information Quality Management Capability Maturity (IQM-Reifegrad) vor. Es wird ein Satz von Kriterien vorgestellt, der aus Literaturrecherche und Fallstudien abgeleitet wurde. Die Reifegradindikatoren werden validiert und in einem mehrstufigen Reifegradmodell durch eine Delphi-Studie gruppiert. Das abgeleitete IQM-Reifegradmodell hilft Organisationen ihre bestehenden Praktiken im IQM zu bewerten und potentielle Lücken und Verbesserungsstrategien zu ermitteln.

  7. Die Digitalisierung der Energiewirtschaft: Potenziale und Herausforderungen der IKT-Branche für Utility 4.0

    NASA Astrophysics Data System (ADS)

    Aichele, Christian; Schönberger, Marius

    Energieunternehmen haben auf dem Weg zur digitalen Transformation noch viele Herausforderungen zu bewältigen. Ein besonderer Schwerpunkt liegt derzeit auf der Modernisierung der IT-Systeme. Ausgangspunkt hierzu ist, dass sich bei den Endkonsumenten Mobile Applikationen, Smartphones, Tablet-PCs oder Smart TVs einer immensen Beliebtheit erfreuen. Durch diese Technologien wird die physische und virtuelle Welt in immer weiter zunehmendem Maße miteinander verknüpft. Mobile Applikation können einen wahren Hype hervorrufen und Verhaltensweisen auch nachhaltig verändern (ein Beispiel hierfür ist Pokémon Go, eine App die ein virtuelles Spiel mit der realen Umgebung kombiniert und die erstmalig auch eingefleischte Zocker aus der Anonymität ihrer häuslichen Umgebung hervorlocken konnte und für analoge Bewegung im Freien sorgte).

  8. [Psychological Care for a High Risk Group of Refugees - Concept of Care for the Yazidi Women and Children of the Sonderkontingent Baden-Württemberg in Freiburg].

    PubMed

    Hillebrecht, Jennifer; Helmes, Almut; Bengel, Jürgen

    2018-03-01

    After the genocide of Shingal in August 2014 in Northern Iraq, the humanitarian admissions program Sonderkontingent Baden-Württemberg "Schutzbedürftiger Frauen und Kinder aus dem Nordirak" was implemented. 1100 persons, most of them Yazidis, were hosted by different municipalities in Germany. The target group is a particularly vulnerable group of persons with a high risk for developing post-traumatic stress disorder. We present the concept of care in Freiburg for 205 Yazidi women and children in Freiburg. A stepped-care approach was developed for the psychological care to introduce the Yazidi people to the daily life and to the health care system in Germany. An outreach of psychological services and an interdisciplinary and multidisciplinary cooperation of all services involved were crucial. © Georg Thieme Verlag KG Stuttgart · New York.

  9. Star Formation in Dusty Quasars

    NASA Astrophysics Data System (ADS)

    Lumsden, Stuart; Croom, Scott

    2012-04-01

    Quasar mode feedback is thought to be a crucial ingredient in galaxy formation for luminous merging and star-bursting systems at high redshift. The energy from the active nucleus should cause significant gas outflows, reducing the available free gas reservoir for future star formation. It is currently unknown which observational state best corresponds to the stage at which this "blowout" should occur. We intend to test one possible source population for this transition phase, by studying the molecular gas content in a small, statistically complete sample of 3 K-band selected reddened quasars from the AUS survey. All lie in the redshift range 2

  10. Statistische Physik

    NASA Astrophysics Data System (ADS)

    Fließbach, Torsten

    In der Statistischen Physik befassen wir uns mit Systemen aus sehr vielen Teilchen. Beispiele hierfür sind die Atome eines Gases oder einer Flüssigkeit, die Phononen eines Festkörpers oder die Photonen in einem Plasma. Die Gesetze für die Bewegung einzelner Teilchen sind durch die Mechanik oder die Quantenmechanik gegeben. Aufgrund der großen Zahl der Teilchen (zum Beispiel N = 6 • 1023 für ein Mol eines Gases) sind die Bewegungsgleichungen jedoch nicht auswertbar. Das Ergebnis einer solchen Auswertung, also etwa die Bahnen von 6•1023 Teilchen, wäre auch uninteressant und irrelevant. Die Behandlung dieser Systeme erfolgt daher statistisch, das heißt auf der Grundlage von Annahmen über dieWahrscheinlichkeit verschiedener Bahnen oder Zustände.

  11. U.S. Geological Survey input-data forms for the assessment of the Spraberry Formation of the Midland Basin, Permian Basin Province, Texas, 2017

    USGS Publications Warehouse

    Marra, Kristen R.

    2017-10-24

    In 2017, the U.S. Geological Survey (USGS) completed an updated assessment of undiscovered, technically recoverable oil and gas resources in the Spraberry Formation of the Midland Basin (Permian Basin Province) in southwestern Texas (Marra and others, 2017). The Spraberry Formation was assessed using both the standard continuous (unconventional) and conventional methodologies established by the USGS for three assessment units (AUs): (1) Lower Spraberry Continuous Oil Trend AU, (2) Middle Spraberry Continuous Oil Trend AU, and (3) Northern Spraberry Conventional Oil AU. The revised assessment resulted in total estimated mean resources of 4,245 million barrels of oil, 3,112 billion cubic feet of gas, and 311 million barrels of natural gas liquids. The purpose of this report is to provide supplemental documentation of the input parameters used in the USGS 2017 Spraberry Formation assessment.

  12. Map of assessed tight-gas resources in the United States

    USGS Publications Warehouse

    Biewick, Laura R. H.; ,

    2014-01-01

    This report presents a digital map of tight-gas resource assessments in the United States as part of the U.S. Geological Survey’s (USGS) National Assessment of Oil and Gas Project. Using a geology-based assessment methodology, the USGS quantitatively estimated potential volumes of undiscovered, technically recoverable natural gas resources within tight-gas assessment units (AUs). This is the second digital map product in a series of USGS unconventional oil and gas resource maps. The map plate included in this report can be printed in hard-copy form or downloaded in a Geographic Information System (GIS) data package, including an ArcGIS ArcMap document (.mxd), geodatabase (.gdb), and published map file (.pmf). In addition, the publication access table contains hyperlinks to current USGS tight-gas assessment publications and web pages.

  13. Map of assessed coalbed-gas resources in the United States, 2014

    USGS Publications Warehouse

    ,; Biewick, Laura R. H.

    2014-01-01

    This report presents a digital map of coalbed-gas resource assessments in the United States as part of the U.S. Geological Survey’s (USGS) National Assessment of Oil and Gas Project. Using a geology-based assessment methodology, the USGS quantitatively estimated potential volumes of undiscovered, technically recoverable natural gas resources within coalbed-gas assessment units (AUs). This is the third digital map product in a series of USGS unconventional oil and gas resource maps. The map plate included in this report can be printed in hardcopy form or downloaded in a Geographic Information System (GIS) data package, including an ArcGIS ArcMap document (.mxd), geodatabase (.gdb), and published map file (.pmf). In addition, the publication access table contains hyperlinks to current USGS coalbed-gas assessment publications and web pages.

  14. Die Struktur von schlankem Materialfluss mit Lean Production Kanban und Innovationen

    NASA Astrophysics Data System (ADS)

    Scheid, Wolf-Michael

    In der Literatur wird Materialfluss überwiegend in Spezialdisziplinen betrachtet, etwa der Steuerungslogik, der Logistiktechnik oder dem Supply Chain Management. Ein charakterisierendes Merkmal des Materialflusses ist jedoch, dass er sich aus vielfältigen Einzelbausteinen zusammensetzt, die alle harmonisch abgestimmt sein müssen. Die maximal erreichbare Effizienz wird nicht durch Höchstleistungen in dem einen oder anderen Spezialthema bestimmt, sondern durch das schwächste Glied im gesamten komplexen Netzwerk. Den Schnittstellen zwischen den betroffenen Fachbereichen in einem Unternehmen kommt hier eine ganz besondere Bedeutung zu: Erst ein harmonischer Einklang ermöglicht hohe Effektivität. Dies setzt umfassendes Verständnis für interdisziplinäre Notwendigkeiten, ein hohes Maß an Abstimmung mit den operativen Prozessen und letztlich einen einvernehmlichen Umgang und den Respekt vor den Problemstellungen des Anderen voraus.

  15. Assessment of peripheral skeletal muscle microperfusion in a porcine model of peripheral arterial stenosis by steady-state contrast-enhanced ultrasound and Doppler flow measurement.

    PubMed

    Naehle, Claas P; Steinberg, Verena A; Schild, Hans; Mommertz, Gottfried

    2015-05-01

    Noninvasive measurement of peripheral muscle microperfusion could potentially improve diagnosis, management, and treatment of peripheral arterial disease (PAD) and thus improve patient care. Contrast-enhanced ultrasound (CEUS) as a noninvasive diagnostic tool allows quantification of muscle perfusion. Increasing data on bolus technique CEUS reflecting microperfusion are becoming available, but only limited data on steady-state CEUS for assessment of muscle microperfusion are available. Therefore, the aim of this study was to evaluate steady-state CEUS for assessment of peripheral muscle microperfusion in a PAD animal model. In a porcine animal model, peripheral muscle microperfusion was quantified by steady-state CEUS replenishment kinetics (mean transit time [mTT] and wash-in rate [WiR]) of the biceps femoris muscle during intravenous steady-state infusion of INN-sulfur hexafluoride (SonoVue; Bracco, Geneva, Switzerland). In addition, macroperfusion was quantified at the external femoral artery with a Doppler flow probe. Peripheral muscle microperfusion and Doppler flow measurements were performed bilaterally at rest and under adenosine stress (70 μg/kg body weight) before and after unilateral creation of a moderate external iliac artery stenosis. All measurements could be performed completely in 10 pigs. Compared with baseline measurements, peripheral muscle microperfusion decreased significantly during adenosine stress (rest vs adenosine stress: mTT, 7.8 ± 3.3 vs 21.2 ± 17.8 s, P = .0006; WiR, 58.4 ± 38.1 vs 25.3 ± 15.6 arbitrary units [a.u.]/s, P < .0001; Doppler flow, 122.3 ± 31.4 vs 83.6 ± 28.1 mL/min, P = .0067) and after stenosis creation (no stenosis vs stenosis: mTT, 8.1 ± 3.1 vs 29.2 ± 18.0 s, P = .0469; WiR, 53.0 ± 22.7 vs 13.6 ± 8.4 a.u./s, P = .0156; Doppler flow, 124.2 ± 41.8 vs 65.9 ± 40.0 mL/min, P = .0313). After stenosis creation, adenosine stress led to a further significant decrease of peripheral muscle microperfusion but had no

  16. Practice Report / Bericht aus der Praxis: An exploration of peer tutor roles and recruitment at German medical schools.

    PubMed

    Alvarez, Simone; Schultz, Jobst-Hendrik

    2017-11-01

    Almost all medical faculties in Germany actively employ peer tutors. However, little is known about the roles these tutors play from a faculty point of view. Also, there are only few descriptions of the tutor recruitment and selection processes. 32 of the medical faculties in Germany, where tutors are used in the training of medical students, were asked to provide information on the role and recruitment of tutors by means of a partially standardized questionnaire. At the surveyed faculties (return rate 28%), tutors are mostly employed for the purpose of teaching staff support. Even though desired in individual cases, tutors rarely play an active role in curriculum- or faculty development. The way tutor recruitment is handled strongly depends on the capabilities of the individual faculties and the way tutors are utilized. In many cases this process is structured, consisting of written and oral application phases, in other cases recruitment takes place without formal application procedures. The selection criteria, however, were found to be very similar at most faculties. The role of tutors from the faculties' point of view depends strongly on the respective nature of the tutorials, which are just as diverse as the approaches to tutor recruitment. Copyright © 2017. Published by Elsevier GmbH.

  17. Migration und Flucht aus Afrika südlich der Sahara - Historische Ursachen, aktuelle Auswirkungen, Lösungsansätze

    NASA Astrophysics Data System (ADS)

    Spaeth, Andreas

    2018-04-01

    Since decolonization till todays "New Odyssey" - the current European refugee crisis—(Kingsley 2016) we witnessed an unhindered and unrestricted migration to Europe from Africa south of the Sahara. Regulated migration was even promoted for medical staff, soldiers and seamen. This was induced by a shortage of qualified staff in receiving ex-colonial powers and the need maintaining mercenary armies for todays international conflicts. Political refugees were often hoped to form new western-friendly governments in cases of socialist Ethiopia and dictatorial regimes in esp. ex-Zaire, Togo, Guinea-Conakry, Uganda, Ghana and Zimbabwe. Todays migration out of Africa south of the Sahara is often caused by political and humanitarian crises, but specifically accelerated by the long-lasting negligence of donors for small-scale agricultural development. Land grabbing and the challenge to bring millions of youth with formal training into a meaningful occupation are seen as further important causes of rural outmigration. A "mismatch" between training programs offered especially by international development agencies and training needs for employability is also causing mass-unemployment of youth. An alignment of future development programming with the needs of the poor to assure a "right to stay" should be addressed by international policy makers with highest priority.

  18. Gerbstoffe aus Potentilla officinalis wirken entzündungshemmend im UV-Erythem-Test und bei Anwendung auf atopischer Haut.

    PubMed

    Hoffmann, Julia; Wölfle, Ute; Schempp, Christoph M; Casetti, Federica

    2016-09-01

    Das Rhizom von Potentilla officinalis (PO) ist reich an Gerbstoffen und wird traditionell zur äußerlichen Behandlung von Entzündungen der Haut und der Schleimhäute verwendet. Ziel der vorliegenden Arbeit war die Bestätigung der antiinflammatorischen Eigenschaften von PO mittels eines UV-Erythem-Tests und einer klinischen Anwendungsstudie bei atopischer Haut. Die antiinflammatorische Wirkung eines PO-Extrakts (standardisiert auf 2 % Trockensubstanz) wurde in einer prospektiven, randomisierten, placebokontrollierten Doppelblindstudie mit 40 gesunden Erwachsenen im UV-Erythem-Test im Vergleich zu 1 % Hydrocortisonacetat untersucht. Im Rahmen einer prospektiven nicht kontrollierten Studie wurde die Wirkung und Verträglichkeit der 2 % PO-Creme an zwölf Erwachsenen und zwölf Kindern mit atopischer Haut nach Anwendung über zwei Wochen in einem definierten Testareal anhand eines Teil-SCORAD untersucht. Zusätzlich wurde die Beeinflussung der Hautrötung im Testareal photometrisch gemessen. Im UV-Erythem-Test zeigte die PO-Creme eine signifikante Reduktion des Erythemindex im Vergleich zum Vehikel. Die antiinflammatorische Wirkung des Verums entsprach der der 1 % Hydrocortisonacetat-Creme. Die klinische Studie bei Atopikern zeigte eine signifikante Abnahme des Teil-SCORAD und des Erythems im Testareal. Es wurden keine Unverträglichkeitsreaktionen beobachtet. PO als 2%ige Zubereitung besitzt entzündungshemmende Eigenschaften und ist wirksam und gut verträglich auf atopischer Haut. © 2016 Deutsche Dermatologische Gesellschaft (DDG). Published by John Wiley & Sons Ltd.

  19. Migration und Flucht aus Afrika südlich der Sahara. Historische Ursachen, aktuelle Auswirkungen, Lösungsansätze

    NASA Astrophysics Data System (ADS)

    Spaeth, Andreas

    2018-04-01

    Since decolonization till todays "New Odyssey"—the current European refugee crisis—(Kingsley 2016) we witnessed an unhindered and unrestricted migration to Europe from Africa south of the Sahara. Regulated migration was even promoted for medical staff, soldiers and seamen. This was induced by a shortage of qualified staff in receiving ex-colonial powers and the need maintaining mercenary armies for todays international conflicts. Political refugees were often hoped to form new western-friendly governments in cases of socialist Ethiopia and dictatorial regimes in esp. ex-Zaire, Togo, Guinea-Conakry, Uganda, Ghana and Zimbabwe. Todays migration out of Africa south of the Sahara is often caused by political and humanitarian crises, but specifically accelerated by the long-lasting negligence of donors for small-scale agricultural development. Land grabbing and the challenge to bring millions of youth with formal training into a meaningful occupation are seen as further important causes of rural outmigration. A "mismatch" between training programs offered especially by international development agencies and training needs for employability is also causing mass-unemployment of youth. An alignment of future development programming with the needs of the poor to assure a "right to stay" should be addressed by international policy makers with highest priority.

  20. Direkte Kontakte zu Deutschland aus und in der Ferne (Direct Contact with Germany from and at a Distance).

    ERIC Educational Resources Information Center

    Wicke, Rainer E.

    This guide is a summary of ideas for enhancing the teaching of German through direct contact with Germany or German people without traveling abroad. The following ideas are highlighted: (1) correspondence (pen pals) with students in Germany; (2) audiotape recordings as an alternative to letter writing; (3) the exchange of videotape recordings with…