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1

Entwicklung von Real Time PCR-Methoden zur Bestimmung von Mandel und Haselnuss in Lebensmitteln.  

E-print Network

??Die vorliegende Diplomarbeit beschreibt die Entwicklung, Optimierung und Validierung einer Singleplex Real Time PCR-Methode zur Bestimmung von potentiell allergener Mandel und einer Duplex Real Time… (more)

Leidinger, Caroline

2009-01-01

2

Bestimmung des ep{Wirkungsquerschnittes von Beauty-Quarks  

E-print Network

Bestimmung des ep{Wirkungsquerschnittes von Beauty-Quarks durch ihren semileptonischen Zerfall in Myonen mit dem H1-Detektor bei HERA Determination of the ep Cross Section for Beauty Quarks via werden die sichtbaren ep-Wirkungsquerschnitte fur schwere Quarks in dem kinematischen Bereich Q2

3

GC-MS-Bestimmung von Ethylglucuronid im Serum mit Propylglucuronid als internem Standard  

Microsoft Academic Search

Zusammenfassung   Es werden die chromatographischen Eigenschaften von Acetyl- und PFP- (Perfluorpropionyl-) derivaten einiger synthetisch dargestellter\\u000a Alkylglucuronide auf einer OV-1-Kapillarsule sowie die massenspektrometrischen Daten mitgeteilt. Die homologen Derivate zeigen\\u000a weitgehende bereinstimmung im Fragmentierungsmuster. Es wird hieraus auf die Struktur von Diacyl-alkylglucuronidlactonen\\u000a geschlossen. Es wird die Bestimmung von Ethylglucuronid als PFP-Derivat im Serum unter Zusatz von 20 mg\\/L Propylglucuronid\\u000a als innerem Standard

G. Sticht; H. Käferstein; M. Staak

1997-01-01

4

Zur Bestimmung bromhaltiger Konservierungsmittel in Wein  

Microsoft Academic Search

Zusammenfassung Die quantitative Bestimmung von Bromessigsäure und deren Estern in Wein wurde bezüglich ihrer Fehlerquellen untersucht. Nach Extraktion der Bromessigsäure und Verseifung mit Lauge kann das entstandene Bromid entweder — nach Oxydation zu Bromat — titriert werden oder — nach Reaktion mit Phenolrot und Chloramin-T zu Bromphenolblau — photometrisch bei 585 nm bestimmt werden. Die Ursachen für positive und negative

Gerald Kainz; Gustav Böhm; Gerhard Sontag

1976-01-01

5

Die Bestimmung der Körperlänge von Feten auf Grund der Maße einiger flacher Knochen  

Microsoft Academic Search

Die erörterten Untersuchungen haben erwiesen, daß nach den durchgeführten Korrelations-, Regressions- und Signifikanzberechnungen praktisch das Os zygomaticum, die Maxilla, Costa III und Mandibula nach dem folgenden Schema zur Bestimmung der Körperlänge unbekannter Feten wohl brauchbar sind: die in Millimetern gemessene Länge der Maxilla und des Os zygomaticum ergibt — mit 2 multipliziert, in Zentimeter ausgedrückt —, und die in Millimetern

I. Gy. Fazekas; F. Kósa

1966-01-01

6

Über den Phosphatidgehalt von Kakaopulver und Kakaofett und zur Frage der Bestimmung eines Zusatzes von Lecithin zu Kakaowaren  

Microsoft Academic Search

Zusammenfassung 1.Der Phosphatidgehalt im alkoholischen Auszug von 6 verschiedenen Kakaopulvern ohne Lecithinzusatz lag zwischen 0,389 und 0,980% (berechnet als Lecithin: P2O5×11,32 und bezogen auf die fettfreie Trockensubstanz). Bei 2 präparierten Kakaopulvern betrug der Phosphatidgehalt 0,389 und 0,552%; die Verhältniszahl des alkohollöslichen P2O5 zum Gesamt-P2O5 war 1:63,6 und 1:44,6. Bei den anderen 4 Kakaopulvern, von denen 2 als unpräpariert bezeichnet waren,

K. Braunsdorf

1937-01-01

7

Schnellmethode zur Isolierung und Bestimmung von 3,4-Benzpyren in Lebensmitteln  

Microsoft Academic Search

Summary A method for the isolation and the quantitative determination of benzo(a)pyrene in food is described. The material is suspended in petroleum-ether. Benzo(a)pyrene is extracted from the organic phase as a water-soluble caffeine-complex. After re-extracting and purifying by column chromatography on silica gel the quantitative evaluation of benzo(a)pyrene is carried out by thinlayer chromatography and fluorimetric scanning of the cellulose

Christian Gertz

1978-01-01

8

Quantitative Bestimmung der wasserlöslichen Vitamine in verschiedenen Obst- und Gemüsesäften mittels HPLC und massenspektrometrischer Analyse.  

E-print Network

??Die Anreicherung an Vitaminen und zusätzlichen Nährstoffen von Obst- und Gemüsesäften ist in den letzten Jahren gestiegen. Produkthersteller werben gezielt mit hohem, reichhaltigem Vitamingehalt ihrer… (more)

Wagner, Sophie-Marie

2011-01-01

9

Die Bestimmung von Forschungsthemen in Max-Planck-Instituten im Spannungsfeld wissenschaftlicher und außerwissenschaftlicher Interessen: Ein Forschungsbericht  

Microsoft Academic Search

Heute steht im Zentrum der öffentlichen Diskussion die Frage, wie sich der praktische Nutzen der Wissenschaft für Wirtschaft und Gesellschaft maximieren lässt. Die empirische Untersuchung, deren Ergebnisse in diesem Bericht dargestellt werden, geht von der umgekehrten Frage aus: Wie beeinflusst die gesellschaftliche Einbettung von Forschungseinrichtungen, vermittelt über die Auswahl von Forschungsthemen, die Entwicklung der Wissenschaft? Gegenstand der Untersuchung waren Institute

Renate Mayntz

2001-01-01

10

Zur stoffwechselphysiologischen bedeutung von mannit und trehalose in Agaricus bisporus (Eine gaschromatographische studie)  

Microsoft Academic Search

Es wird eine gaschromatographische Methode zur simultanen Bestimmung von Mannit und Trehalose in Pilzextrakten beschrieben und damit die Zusammensetzung der Neutralfraktionen einiger Basidiomyceten-species untersucht.

Dora Rast

1965-01-01

11

Das polyzystische Ovarialsyndrom: Im Spannungsfeld von Hormonen und Stoffwechsel  

Microsoft Academic Search

schen Messungen und Hirsutismus-Score. Ein Hormonstatus mit Bestimmung von Androgenen ist unerlässlich, ein LHRH-Test kann weitere diagnos- tische Hinweise liefern. Weiters sollten zur meta- bolischen Abklärung ein oraler Glukosetoleranz- test, eine Messung der Körperfettverteilung und die Bestimmung eines Lipidstatus erfolgen. Thera- peutisch ist vor allem bei adipösen Frauen eine Lebensstilintervention am wichtigsten, zusätzlich kommen Insulinsensitizer und orale Kontrazeptiva zum Einsatz.

E. Wehr; B. Obermayer-Pietsch

2010-01-01

12

Indirekte Bestimmung des Gesamtglucosinolatgehaltes von Rapssamen mittels Röntgenfluorescenzanalyse  

Microsoft Academic Search

The introduction of oilseed-rape cultivars poor in glucosinolates within the EC necessitates methods for a precise, rapid as well as simple determination of the total content of glucosinolates in oilseed-rape. In contrast with the methods commonly used (GC, HPLC, palladium test and reflectrometry) the indirect procedure presented here is based on the rather close correlation between glucosinolate content and the

E. Schnug; S. Haneklaus

1987-01-01

13

QUANTITATIVE BESTIMMUNG DER 9-OXODECENSURE IM LEBENSZYKLUS DER KAPBIENE  

E-print Network

each with 70-80 young workers of Apis mellifera car- nica in small cages. The Cape bees started worker bees had no 9- OD though they layed eggs. 12 out of 18 bees, which did not oviposit, produced 9-OD direkten gaschromatographischen Methode wurde die 9-Oxodecensäure (9-OD) quantitativ bestimmt. * Mit

Boyer, Edmond

14

ESCA: Eine Methode zur Bestimmung von Elementen und ihren Bindungszuständen in der Oberfläche von Festkörpern  

Microsoft Academic Search

ESCA — or Electron Spectroscopy for Chemical Analysis (the term used by its inventor, Siegbahn)-is based on the effects of X-rays on the inner orbitals of atoms and is applicable to all substances. Routine ESCA investigations are carried out chiefly on solids. The information is provided by photo- and Auger electrons, which are emitted from the surfaces of solids without

R. Holm; S. Storp

1978-01-01

15

Pharmakokinetik von Etoposidphosphat.  

E-print Network

??In der vorliegenden Arbeit wird die Pharmakokinetik des Zytostatikums Etoposid nach intravenöser Gabe von Etoposid-Phosphat untersucht. Die quantitative Analyse wurde mit der 252-Californium-Plasma-Desorptions-Massenspektrometrie nach Chloroformextraktion… (more)

Barth, Axel

2004-01-01

16

Neue biosensorische Prinzipien für die Hämoglobin-A1c Bestimmung  

NASA Astrophysics Data System (ADS)

Hämoglobin-A1c (HbA1c) ist ein Hämoglobin (Hb)-Subtypus, der durch nicht-enzymatische Glykierung des N-terminalen Valinrestes der Hämoglobin-beta-Kette entsteht. Das gemessene Verhältnis von HbA1c zum Gesamt-Hämoglobin (5-20 % bei Diabetikern) repräsentiert den Mittelwert der Blutglucosekonzentration über einen zweimonatigen Zeitraum und stellt zur Beurteilung der diabetischen Stoffwechsellage eine Ergänzung zur Akutkontrolle der Glukosekonzentration dar. Ziel der vorliegenden Arbeit war es, einen amperometrischen Biosensor für die Bestimmung des medizinisch relevanten Parameters HbA1c zu entwickeln. Durch Selektion geeigneter Bioerkennungselemente und deren Immobilisierung unter Erhalt der Bindungsfunktion für die Zielmoleküle Hämoglobin bzw. HbA1c wurden spezifische, hochaffine und regenerationsstabile Sensoroberflächen geschaffen. Für die Entwicklung des HbA1c-Biosensors wurden zwei Konzepte - Enzymsensor und Immunosensor - miteinander verglichen. Die enzymatische Umsetzung von HbA1c erfolgte mit der Fructosylamin Oxidase (FAO) aus Pichia pastoris N 1-1 unter Freisetzung von H2O2, welches sowohl optisch über eine Indikatorreaktion als auch elektrochemisch nach Einschluss der FAO in PVA-SbQ und Fixierung des Immobilisats vor einer H2O2-Elektrode nachgewiesen wurde. Die Kalibration des Enzymsensors mit der HbA1c-Modellsubstanz Fructosyl-Valin ergab Nachweisgrenzen, die ausserhalb des physiologisch relevanten HbA1c-Konzentrationsbereich lagen. Aus der Umsetzung von glykierten Peptiden mit einer nicht HbA1c analogen Aminosäurensequenz, z.B. Fructosyl-Valin-Glycin wurde zudem eine geringe HbA1c-Spezifität abgeleitet. Für den Immunosensor wurden zwei heterogene Immunoassay-Formate unter Verwendung von hochaffinen und spezifischen Antikörpern in Kombination mit Glucose Oxidase (GOD) als Markerenzym zum Nachweis von HbA1c untersucht. Beim indirekt-kompetitiven Immunoassay wurde anstelle des kompletten HbA1c-Moleküls das glykierte Pentapeptid Fructosyl-Valin-Histidin-Leucin-Threonin-Prolin (glkPP) als Kompetitor und Affinitätsligand immobilisiert und so eine regenerierfähige Oberfläche geschaffen. Beim Sandwich-Immunoassay wurde im ersten Schritt Gesamt-Hämoglobin an die mit Haptoglobin (Hp) modifizierte Festphase angereichert und im zweiten Schritt der gebundene HbA1c-Anteil nachgewiesen. Für die Konstruktion des HbA1c-Immunosensors wurden Affinitätsmatrizen durch Modifizierung von Cellulose-Dialysemembranen mit glkPP bzw. Hp hergestellt. Grundlegend studiert wurde die Aktivierung der Cellulose-Membranen mit 1,1'-Carbonyldiimidazol (CDI) und 1-Cyano-4-dimethylaminopyridintetrafluoroborat (CDAP) als Aktivierungsagenzien. Eine gerichtete Immobilisierung der Liganden wurde realisiert, indem glkPP über dessen C-Terminus (einzige Carboxylatgruppe) und Hp über dessen periodat-oxidiertem Kohlenhydratrest an die amino- oder hydrazidfunktionalisierte Membranen kovalent gekoppelt wurden. Mit dem Einsatz der glkPP- und Hp-modifizierten Membranen in der elektrochemischen Messzelle war erstmalig der biosensorische Nachweis von HbA1c möglich. Als Transduktor diente eine Pt-Elektrode, an der das von der GOD generierte H2O2 umgesetzt und ein mit der HbA1c-Konzentration korrelierendes Stromsignal erzeugt wurde. Die Immunosensoren zeigten Ansprechzeiten von 3 s. Mit dem Immunosensor auf Basis des indirekt-kompetitiven Testprinzips wurde eine Kalibrationskurve für HbA1c im Bereich von 0,25-30 µg/ml (3,9-465 nM, CV 3-9 %) mit Assayzeiten von 60 min und mit dem Immunosensor im Sandwich-Format eine Kalibrationskurve im Bereich von 0,5-5 µg/ml (7,8-78 nM; 5-50 % HbA1c vom Gesamt-Hb, CV 6-10 %, 3 h) aufgenommen. Hemoglobin-A1c (HbA1c) is a hemoglobin subtype formed by non-enzymatic reaction of glucose with the N-terminus of the beta-polypeptide chains. As it reflects the glycemic status of diabetics over the preceding 8-12 weeks, the determination of HbA1c has become an established procedure in the management of diabetes mellitus. It is measured as the percentage of total hemoglobin. Up to 5 % HbA1c are considered as

Stöllner, Daniela

2002-06-01

17

Bestimmung von Metallspuren in Polymeren mit Hilfe der Atom-Absorptionsspektrophotometrie  

Microsoft Academic Search

Atomic absorption spectrophotometry allows quick and exact determination of both ppm and percent quantities of metals in polymers. Preferably 2% solutions of soluble polymers are analyzed. Polymers insoluble in a suitable solvent are ashed in H2SO4\\/H2O2. For volatile metal compounds a double precipitating method followed by enrichment of trace metals is described. The following polymers are studied: polystyrene, cellulose esters,

M. Olivier

1969-01-01

18

Multimethode zur Bestimmung der Rückstände von Chemotherapeùtica, Antiparasitica und Wachstumsförderern in Lebensmitteln tierischer Herkunft  

Microsoft Academic Search

Summary Chloramphenicol and meticlorpindol may be determined by HPLC with UV-detection with a limit of 0.02–0.03 mg\\/kg. Residues of 0.001 mg\\/kg Chloramphenicol are determined by Capillary-GC with an ECD after an additional clean up step using chromatography on a miniaturized silica column, followed by a silylation step. HMDS\\/TMCS\\/Pyridine forms the disilylated Chloramphenicol. In samples of eggs, milk and meat the

Rainer Malisch

1987-01-01

19

Coulometrische Bestimmung niedriger Konzentrationen von Piperidin in wäßriger Lösung neben Ammoniak  

Microsoft Academic Search

A method for the determination of low concentrations of piperidine in aqueous solutions (0.1–10 mg\\/l) has been worked out, based on the coulometric titration with bromine at pH 8. In the presence of ammonia the sum of piperidine and ammonia is determined coulometrically and ammonia separately according to Nessler's photometric method. The piperidine content results from the difference. Piperidine concentrations

Vladimír Talášek; Jan Vošta; Jaroslav Eliášek

1967-01-01

20

ORIGINAL ARTICLE Genetic regulation of plasma von Willebrand factor levels  

E-print Network

ORIGINAL ARTICLE Genetic regulation of plasma von Willebrand factor levels: quantitative trait loci Hughes Medical Institute, Hematology/Oncology Division, and Department of Internal Medicine, Ann Arbor of plasma von Willebrand factor levels: quantitative trait loci analysis in a mouse model. J Thromb Haemost

Broman, Karl W.

21

Rasche und genaue Bestimmung von Ethanol mittels einer Oxidase-Elektrode in einem Strömungs-Injektions-System  

Microsoft Academic Search

Summary An alcohol oxidase electrode — without chemical immobilization of the enzyme — has been constructed for the rapid determination of ethanol in beverages. A layer of cigarette paper impregnated with a 20%-alcohol oxidase solution was mounted onto a Clark oxygen electrode and covered by a dialysis membrane. The half life of the entrapped enzyme was 6.5 days. The electrode

Anita Schelter-Graf; Horst Huck; Hanns-Ludwig Schmidt

1983-01-01

22

Produktmanagement von Mediengütern  

Microsoft Academic Search

Medien sind Vermittlungsträger von Informationen zwischen Quelle und Empfänger. Sie werden daher als Kommunikationsmittel\\u000a von Menschen verstanden. Umgangssprachlich ist der Begriff Medien vor allem mit den Massenmedien verbunden (Schumann\\/Hess\\u000a 2005, S. 5 ff.). Massenmedien - wie etwa das Fernsehen oder Hörfunk - sind Distributionskanäle von Medieninhalten. So ist\\u000a eine Zeitschrift ein Bündel von Inhalten in Form von Fotos und Texten

Michel Clement

23

Entwicklung einer Mikrotiterplatten basierten Methode zur Bestimmung der Ferric Reducing Ability of Plasma (FRAP).  

E-print Network

??Intensive körperliche Aktivität ist nachweislich mit einer vermehrten Bildung freier Radikale sowie der Gefahr von oxidativem Stress verbunden. Freie Radikale schädigen allerdings nicht grundsätzlich. Ihre… (more)

Valentini, Judit

2009-01-01

24

Bestimmung der Körperlänge und des Alters menschlicher Feten aut Grund der Schädelbasisknochenmaße  

Microsoft Academic Search

Zusammenfassung Verfasser haben Messung der Schädelbasisknochen (Ala parva, Ala magna, Corpus ossis sphenoidalis, Pars petrosa et mastoidea, Pars basilaris, Pars lateralis ossis occipitalis) von 138 totgeborenen oder einige Stunden nach der Geburt gestorbenen menschlichen Feten (71 ? und 67 ?) mit einer Länge von 9–55 cm vorgenommen, die Regressionsgleichung der Schädelbasisknochenmaße im Verhältnis zur Körperlänge, ihre Korrelationskoeffizienten (r) und die

I. Gy. Fazekas; F. Kósa

1967-01-01

25

Bestimmung der Körperlänge und des Lebensalters menschlicher Feten auf Grund der Größenmaße der Gesichtsknochen  

Microsoft Academic Search

Es wurden die Gesichtsknochenmaße (Os nasale, Concha nasalis inferior, Vomer, Os palatinum, Os zygomaticum, Maxilla, Mandibula) von 138 menschlichen Feten (71 Knaben und 67 Mädchen mit einer Körperlänge zwischen 9 und 55 cm) bestimmt.

I. Gy. Fazekas; F. Kósa

1967-01-01

26

Theodore von Karman  

NASA Technical Reports Server (NTRS)

Theodore von Karman. NACA: In the eyes of most aeronautical experts, the overall record of Max Munk in aerodynamic research falls short of that achieved by fellow immigrant Theodore von Karman (the short man in the double breasted coat in the middle), shown here visiting Langley in December 1926. People in the photo include Max Munk, aerodynamic researcher; Theodore von Karman; George Lewis, director of research; Henry Reid, engineer in charge; Fred Weick, PRT head; Paul Hemke; Elliott Reid, future Stanford University Professor.

1926-01-01

27

Rheologie von Beschichtungen  

NASA Astrophysics Data System (ADS)

Die Rheologie beschreibt die Fließ- und Deformationseigenschaften von Materialien. Der Begriff Rheologie ist aus dem Griechischen abgeleitet: rhein - fließen. Erst im Jahre 1930 entwickelte E.C. Bingham und M. Reiner in Easton (USA) die Rheologie zu einer eigenständigen Wissenschaft. Aber bereits seit dem 17. Jahrhundert wurden wesentliche Einzelbeiträge zu Fließphänomenen veröffentlich, so z.B. 1676 von R. Hooke (Hookesches Gesetz) und 1687 von I. Newton (Newtonsches Gesetz). Die Rheologie hat sich bis heute immer mehr zu einer interdisziplinären Wissenschaft entwickelt, die die mechanischen Eigenschaften von Materialien charakterisiert.

Schäffler, Michael

28

Dr. Wernher Von Braun  

NASA Technical Reports Server (NTRS)

Dr. Wernher Von Braun (left) and Fred W. Kelley examine a ST-100 Stellar Instrument Platform in the astrionics lab. Dr. Von Braun, then deputy associate administrator for planning, NASA, was visiting on the anniversary of the establishment of the Marshall Space Flight Center.

1999-01-01

29

Leopold von Buch  

USGS Multimedia Gallery

This portrait of Leopold von Buch(1774-1853) was painted in the 1920s by Abner Lowe. Geologist, Paleontologist, and Graduate of the mining academy, Frieburg, Germany, von Buch is largely known for finding flaws in Abraham G. Werner's hypothesis (rocks from aqueous origins). Some of his more importan...

2009-07-22

30

KKLAVIERABENDLAVIERABEND DER KLAVIERKLASSE VON  

E-print Network

Fantasie Impromptu cis-moll 1. Walzer Des-Dur aus drei Walzer Op. 66 Etude c-moll Op. 10 Nr. 12 (Revolutionsetude) Uli Schinkmann 10 M10 MINUTENINUTEN P PAUSEAUSE Alexander Scriabin Fantasie orte -- Die Klavierklasse von Valerij Petasch Mit freundlicher Unterstützung von Piano Blomeier Stets

Pfeifer, Holger

31

Bestimmung der Körperlänge und des Alters menschlicher Feten auf Grund der Schädeldachknochenmasse  

Microsoft Academic Search

Zusammenfassung An 138 totgeborenen oder wenige Stunden nach der Geburt gestorbenen menschlichen Feten — 71 männliche und 67 weibliche mit einer Körperlänge von 9–55 cm — wurden Höhe und Breite der Schädeldachknochen (Squama frontalis, Squama temporalis, Annulus tympanicus, Os parietale, Squama occipitalis) bestimmt.

I. Gy. Fazekas; F. Kósa

1967-01-01

32

Dr. Wernher von Braun  

NASA Technical Reports Server (NTRS)

Dr. von Braun is looking out from a 10th floor window of building 4200 at the Marshall Space Flight Center (MSFC). He was the first Center Director and served as the Director from July 1960 through February 1970. Following World War II, Dr. von Braun and his German colleagues arrived in the United States under the Project Paperclip (American acquisition of German rocket experts) to continue their rocket development work. In 1950, von Braun and his German Rocket Team (also called the Peenemuende Team) were transferred from Ft. Bliss, Texas to Huntsville, Alabama to work for the Army's rocket program at Redstone Arsenal and later, NASA's Marshall Space Flight Center (MSFC). Under Dr. von Braun's leadership, MSFC developed the Saturn V launch vehicle, which placed the first men, two American astronauts, on the Moon. Wernher von Braun's life was dedicated to expanding man's knowledge through the exploration of space.

2004-01-01

33

Dr. Wernher Von Braun  

NASA Technical Reports Server (NTRS)

Dr. Wernher Von Braun (right), Deputy Associate Administrator for planning, National Aeronautics and Space Administration, inspects the mockup of the Saturn Workshop during a visit marking the 10th anniversary of the Marshall Center. Shown with Dr. Von Braun, from left to right, are Karl Heimburg, Director of the astronautics lab; Herman K. Weidner, Director of Science and Engineering, and George Hardy of the Astronautics lab.

1999-01-01

34

Dr. Wernher Von Braun  

NASA Technical Reports Server (NTRS)

Dr. Wernher Von Braun (right), Deputy Associate Administrator for Planning, National Aeronautics and Space Administration, inspects the mockup of the Saturn Workshop during a visit marking the 10th anniversary of the Marshall Center. Shown with Dr. Von Braun, from left to right, are Karl Heimburg, Director of the Astronautics Lab; Herman K. Weidner, Director of Science and Engineering, and George Hardy of the Astronautics Lab.

1999-01-01

35

Wirkung von Transaminaseinhibitoren auf die Tryptophan-abhängige Pigmentbildung von Malassezia furfur.  

E-print Network

??Die vorliegende Arbeit untersucht die Wirkung von Transaminaseinhibitoren auf die Pigmentbildung von Malassezia furfur. Das Phänomen der Pigmentbildung von Malassezia furfur durch Verstoffwechselung der Aminosäure… (more)

Vöhrs, Inga Susanne Gabriele

2010-01-01

36

Dr. Wernher Von Braun  

NASA Technical Reports Server (NTRS)

Marshall Space Flight Center director Wernher Von Braun and his family were honored with a series of events prior to his relocation to Washington, D.C. where he was assigned duties at NASA headquarters as deputy associate administrator for planning. Here he is shown with General Richard Drury and Hazel Toftoy, widow of General H.N. Toftoy.

1999-01-01

37

Viruskörper von Rumex obtusifolius  

Microsoft Academic Search

Zusammenfassung Im Sommer 1956 wurde in Zagreb eine gro\\\\e Anzahl vonRumex obtusi-folius- Pflanzen beobachtet, die an einer Mosaikkrankheit litten. In den Blatt-Epidermiszellen dieser Pflanzen wurden amorphe X-Körper gefunden. Die Krankheit ist durch Verimpfung des infizierten Zellsaftes auf die gesunden Pflanzen übertragbar.

Davor Mili?i?; Vlatko Brali?

1958-01-01

38

Sanierung von Abdichtungen  

NASA Astrophysics Data System (ADS)

Mängelrügen an Bauwerksabdichtungen haben in den letzten Jahren deutlich zugenommen. Eine Ursache sind die in den letzten Jahrzehnten gestiegenen höheren Nutzungsanforderungen von Kellerräumen und der hieraus resultierenden Sensibilität der Nutzer zu sehen. Während Keller früher ausschließlich unbeheizt waren und für untergeordnete Lagerzwecke genutzt wurden, werden Kellerräume heutzutage gemäß [17.26] vielfach zum Beispiel als Fitnessräume, Partykeller, Hobbyräume, Saunabereiche und Arbeitsbereiche hochwertig genutzt.

Bonk, Michael

39

Dr. Wernher Von Braun  

NASA Technical Reports Server (NTRS)

Shown viewing the Apollo telescope mockup are, from left to right, Charles Donlan, deputy associate administrator for manned space flight; Dr. Wernher Von Braun, Marshall Space Flight Center director; William Horton, astrionics lab; Dr. Thomas Paine, NASA deputy administrator; Warner Kuers, director of the ME lab.

1999-01-01

40

Zur Komplexität von Entscheidungssituationen  

Microsoft Academic Search

Zusammenfassung: Der Entscheidungsbegriff kann am besten von einem Handlungsbe- griff ausgehend definiert werden, der die Frage der Zurechnung einer Selektion in den Mittelpunkt stellt. Die Entscheidung ist dann ein Spezialfall einer Handlung in Form einer dem Handelnden zurechenbaren relationalen Thematisierung der Selektion seines Handelns. Wenn man so optiert, müssen die klassischen Annahmen der Entscheidungs- theorie überdacht werden. Im Zentrum des

Niklas Luhmann

2009-01-01

41

Erfolgsfaktoren von Partnerprogrammen  

Microsoft Academic Search

Beeindruckend ist die Welt des Affiliate-Marketing, ganz ohne Zweifel. Dabei ist das Prinzip von Partnerprogrammen so alt wie der Handel selbst. Vielleicht kennen auch Sie das Bild großer orientalischer Basare, deren kleine Gassen zwischen den Ständen der Händler oftmals so eng und verschachtelt sind, dass viele vorsichtige Touristen erst gar nicht den Versuch unternehmen, in die Mitte des Marktplatzes vorzudringen,

Alexander Kösters

42

THE VON NEUMANN SYNDROME  

Microsoft Academic Search

Because of high energy consumption our computer-based infrastructure may become unafiordable - without reinvent- ing the entire computing discipline, also due to cope with the manycore programming crisis. The paper highlights facts, trends, and a roadmap to by-pass this crisis and to reach new horizons. The term von Neumann syndrome has been coined by C. V. Ramamoorthy in reply to

Reiner Hartenstein

2010-01-01

43

Die Äsungszusammensetzung des Alpensteinwildes ( Capra i. ibex L.) in Abhängigkeit von Jahreszeit, Alter und Äsungsangebot in Graubünden  

Microsoft Academic Search

554 von Steinwild stammende Panseninhalte wurden auf ihre botanische Zusammensetzung hin untersucht. Die Analysenergebnisse zeigen, daß sich diese Tierart vorwiegend von Gräsern ernährt. Eine Bevorzugung dieser Pflanzengruppe gegenüber Kräutern, Zwergsträuchern und Nadelgehölzen ließ sich durch Erhebungen des potentiellen Nahrungsangebotes auf den Äsungsflächen eindeutig nachweisen. Der quantitative Anteil der Gräser betrug in jeder Jahreszeit über 80%. Im Herbst und Winter bildeten

E. Klansek; I. Vavra; K. Onderscheka

1995-01-01

44

QUANTITATIVE ANALYSES A Model of How Interreflections  

E-print Network

QUANTITATIVE ANALYSES A Model of How Interreflections Can Affect Color Appearance Michael S. Langer.langer@tuebingen.mpg.de) Contract grant sponsor: Alexander von Humboldt Research Fellowship © 2000 John Wiley & Sons, Inc. S218 COLOR research and application #12;such as terrains,4 and so conclusions about color appearance

Langer, Michael

45

Bestimmung der Mutarotation von Monosacchariden mittels Gas-Chromatographie — Aufklärung verschiedener Fructose und Sorboseformen mit Gas-Chromatographie, Infrarot- und Massenspektroskopie  

Microsoft Academic Search

The mutarotation of a monosaccharide in solution can be investigated by gas chromatography. After varying time intervals the dissolved monosaccharides were deep-frozen with liquid air, lyophilized, silylated and the a- and ß-forms gas-chromatographically determined. The calculated velocity constants for glucose are in good agreement with the results from rotation measurements.

H.-C. Curtius; J. A. Völlmin; M. Müller

1968-01-01

46

Bestimmung von Standzeiten bei wechselnden Beanspruchungen mit einer Lebensanteil-Regel. Teil 2: Anwendung der Lebensanteil-Regel auf simulierte Kühlmitteldurchflu?störungen eines natriumgekühlten Brutreaktors  

NASA Astrophysics Data System (ADS)

The impact on the time to rupture of unirradiated fuel rod cladding tubes caused by specific coolant flow losses in LMFBRs was simulated by interrupting for several hours an internal-pipe-pressure stress-rupture test ( T= 650° C; P = 380 bar) by a temperature transient ( T T = 850°C ; P = 50 bar) after a test time of a few days. The residual time to rupture after the transient was determined experimentally and by calculation. It decreases depending upon the duration of the transient from 1600 h up to a few tenths of an hour. During the period of high temperature the material structure undergoes major changes, so that the residual time to rupture cannot be calculated with the life-fraction rule by Robinson. A modified life-fraction rule ("LAR"), taking into account structural changes, allows the respective materials damage and, hence, also the residual time to rupture to be calculated.

Schäfer, Ludwig

1986-04-01

47

Multianalysenmethode zur routinemäßigen Bestimmung der Aflatoxine B 1 , B 2 , G 1 und G 2 sowie von Citrinin, Ochratoxin A, Patulin, Penicillinsäure und Sterigmatocystin in verschimmelten Nahrungsmitteln  

Microsoft Academic Search

A simple method for the routine examination of molded rice, wheat bread and other vegetable foodstuffs is described. The mycotoxins are first extracted with acetonitrile\\/4% KCl and cyclohexane and then transferred into a dichloromethane phase. The aflatoxins are determined fluorometrically after separation by two-dimensional TLC (chloroform\\/acetone=9\\/1 and dichloromethane\\/acetonitrile=8\\/2). The other mycotoxins are analogously separated with toluene\\/ethylacetate\\/formic acid=6\\/3\\/1 and benzene\\/ acetic

Heike Johann; Klaus Dose

1983-01-01

48

Nichtwässrige derivative Headspace Festphasenmikroextraktion in Verbin- dung mit GC-MS in der Haaranalyse - eine sensitive Methode zur Bestimmung von Cannabis und Alkoholmissbrauch  

Microsoft Academic Search

Objective: In general, headspace solid phase microextraction (HS-SPME) as a method of sample preparation of hair for drugs is performed from aqueous hair hydrolysates or hair extracts. Therefore, the method is limited to an extraction temperature below the boiling point of the aqueous phase (100-120 °C, depending on the salt content) and cannot be combined with in- sample derivatization by

Johannes Schräder; Thomas Nadulski; Fritz Pragst

49

Autoradiographische Bestimmung der DNS-Verdopplungszeit und anderer Teil-Phasen des Zell-Zyklus bei fetalen Zellarten der Ratte  

Microsoft Academic Search

Bei Ratten-Feten am 20. Tag der Gravidität wurden bei einer Reihe von Zellarten die DNS-Verdopplungszeit (S-Phase), die Generationszeit und die anderen Teil-Phasen des Zell-Zyklus nach zwei verschiedenen Methoden bestimmt.

K. Wegener; S. Hollweg; W. Maurer

1964-01-01

50

Werkzeuge zur Performanceanalyse von datenbankanwendungen am Beispiel von ADABAS D  

Microsoft Academic Search

Zusammenfassung  ??Performancesteigerung ist beim Einsatz von RDBMS ein Kernthema. Während häufig noch detailliertes Know How der RDBMS-Architektur\\u000a und Erfahrung dafür erforderlich sind, werden von einzelnen Datenbankherstellern Instrumente angeboten, die dem Administrator\\u000a die notwendigen Analysen weitestgehend abnehmen. Dies wird am Beispiel von Adabas D und den Werkzeugen x_wizard und Diagnose\\u000a Monitor gezeigt.

Jochen Hartmann; Liane Will

1997-01-01

51

Mechanische Eigenschaften von Fadenmaterialien zur Verankerung von Kreuzbandtransplantaten  

Microsoft Academic Search

Zusammenfassung  \\u000a Bei der Verwendung von Semitendinosussehnen für die vordere Kreuzbandplastik kommen textile Materialen als Konnektoren für\\u000a die Verankerung zum Einsatz. Vor Abschluss der ossären Integration besitzt die Verankerung hinsichtlich der biomechanischen\\u000a Stabilität große Bedeutung. Die folgende Studie untersuchte die maximale Zuglast sowie die irreversible und elastische Elongation\\u000a von Nr. 6 Ethibond, 5-mm Mersilene- und 5-mm-Polylenetape in Form von Schlaufen in

R. Becker; M. Schröder; C. Stärke; M. Röpke; W. Nebelung

2000-01-01

52

Undergraduate Quantitative  

E-print Network

Undergraduate Quantitative Research Methods with: Childhood Studies | Geography | Politics | Social.ac.uk/study The University of Bristol is introducing a new quantitative research methods pathway to a range of social science new courses, work placements and pathways to Why enhance your degree with quantitative research

Bristol, University of

53

Prozessorientiertes Qualitätscontrolling von Dienstleistungen  

Microsoft Academic Search

Die Qualität von Dienstleistungen ist im Rahmen der Erfolgsfaktorenforschung als eine wesentliche Determinante des Unternehmensergebnisses\\u000a identifiziert worden (Buzzell\\/ Gale 1989, S. 7f., 41, 91ff.)- Die Qualitätsorientierung und somit auch das Qualitätsmanagement\\u000a spielen demnach eine wesentliche Rolle in der Unternehmensplanung eines Dienstleisters. Der durch das Qualitätsmanagement\\u000a zu sichernde ökonomische Erfolgsbeitrag ist jedoch nur realisierbar, wenn die dem Qualitätsniveau entgegengebrachte Kundenwertschätzung\\u000a mindestens

Martin Benkenstein; Ariane von Stenglin

54

Untersuchung von Fhn mit Hilfe von in situ-und  

E-print Network

? · Konzepte, Analogien, Fragen 2. Das GAP-Projekt (MAP 1999): · Topographie des Wipptales · Instrumentierung 3 ? 2. Beziehung zwischen Strömung unter (gap flow) und über Kammniveau ? 3. 3D Verteilung von) Hydraulische Theorie (Smith, 1985) MAP Science Plan 1998 1. Bedeutung von seitlichen und vertikalen Verengungen

Gohm, Alexander

55

Theodore von Karman  

NASA Technical Reports Server (NTRS)

Dr. Theodore von Karman, co-founder of the Jet Propulsion Laboratory (JPL) Pasadena, California was an aeronautical theoretician. His contributions in the fields of aerodynamics and aeronautical engineering are well documented and well known to every aerospace engineer. He was the first winner of the prestigious U.S. Medal of Science presented to him by President John F. Kennedy. As well as being co-founder of JPL, he also was principal founder of a major rocket propulsion firm (Aerojet-General Corp.), the top science advisor to the U.S. Air Force during its transition to jet propulsion aircraft and the top science advisor to NATO. He was, during much of this time, the fountainhead of aerodynamic thought as head of the Guggenheim Aeronautical Laboratory at the California Institute of Technology (GALCIT) in Pasadena, California. In the May 1956 issue of the Journal of Aeronautical Sciences, it was said of him that 'No other man has had so great an impact on the development of aeronautical science in this country. Hundreds of young men became his students and scientific collaborators and were inspired to greater effort.' Dr. William H. Pickering, then director of JPL said in 1960 'We wouldn't have an aeronautical science as we know it today, if it weren't for Dr. Thoedore von Karman.' Under his guidance, Caltech's 10 foot wind tunnel was designed, built and operated. Industry firms such as Douglas, Northrop, Hughes, Lockheed, North American, Vultee and Consolidated all tested new aeronautical designs and concepts in GALCIT's tunnel. Even Boeing's own high-speed wind tunnel was heavily influenced by suggestions from von Karman. The National Advisory Committee for Aeronautics (NACA) became so concerned about GALCIT's growing influence over West coast aviation, it erected the Ames Laboratory in Sunnyvale, California in part to deter an ever widening aeronautical gap that had formed between NACA and GALCIT. From 1936 to 1940, Caltech stood alone as the only university-based rocket research center. Von Karman gambled his prestige by supporting Frank Malina and H.S. Tsien's work on rocketry. Other institutions of higher learning dismissed such research as 'fantastical' and left such endeavors to visionaries like Robert Goddard. Foundational theoretical research by Von Karman gave rise to the first successful solid-fuel rocket engine firings. This led to federal funding for studies that lead to a form of aircraft rocket propulsion called Jet Assisted Take-Off or (JATO). Success in this endeavor led to von Karman establishing two more highly regarded institutions; both originally dedicated to rocketry: the Aerojet Engineering Company and the Jet Propulsion Laboratory. The last years of his life were spent in Paris, his favorite city. His interest in aeronautical research and contributions to it never waned. He organized in Paris the NATO Advisory Group for Aeronautical Research and Development (AGARD). Staffed by American and European scientists eager to serve, its many committees investigated such disciplines as propulsion, aerodynamics and electronics. The legacy of his personable leadership and 'soft touch' approach to problem solving was only equalled by his genius.

1950-01-01

56

John von Neumann: Formative Years  

Microsoft Academic Search

This biographical essay by von Neumann's younger brother traces the development of John von Neumann's axiomatic method to his early environment. Nicholas Vonneuman sees the early contact with eminent scientists and scholars in their parents' house and the discussion of management practices at dinner conversations as shaping experiences in his brother's life. His mother's motto \\

Nicholas Vonneuman

1989-01-01

57

Dr. Wernher Von Braun  

NASA Technical Reports Server (NTRS)

Dr. Thomas Paine, Deputy Administrator of the National Aeronautics and Space Administration, examines an ordinary man's shoe outfitted for use in the Saturn I workshop. Pictured from the left in the Saturn I workshop mockup are William Brooksbank, propulsion and vehicle engineering laboratory; Dr. Paine; Dr. Wernher Von Braun, Marshall Center director; Colonel Clare F. Farley, Executive Officer in the Office Of The Administrator; and Charles J. Donlan, Deputy Associate Administrator for Manned Space Flight, Technical. the shoe Dr. Paine is holding has a unique fastener built into the sole to allow an astronaut to move about on the workshop floor and to remain in one position if he desires.

1999-01-01

58

On Weakly von Neumann regular rings  

Microsoft Academic Search

In this paper, we define and study a particular case of von Neumann regular notion called a weak von Neumann regular ring. It shown that the polynomial ring $R[x]$ is weak von Neumann regular if and only if $R$ has exactly two idempotent elements. We provide necessary and sufficient conditions for $ R=A\\\\propto E $ to be a weak von

Mohammed Kabbour; Najib Mahdou

2009-01-01

59

Quantitative NMR  

NSDL National Science Digital Library

This site features a learning module focused on principles and practice of NMR for quantitative analysis, an application less commonly associated with the technique than is structure determination. Links to simulation packages are included.

Korir, Albert K.; Larive, Cynthia K.

2011-07-18

60

von Karman Vortices  

NASA Technical Reports Server (NTRS)

Each of these swirling clouds is the result of a meteorological phenomenon known as a von Karman vortex. These vortices appeared over Alexander Selkirk Island in the southern Pacific Ocean. Rising precipitously from the surrounding waters, the island's highest point is nearly a mile (1.6 km) above sea level. As wind-driven clouds encounter this obstacle, they flow around it to form large, spinning eddies. This image was acquired by Landsat 7's Enhanced Thematic Mapper plus (ETM+) sensor on September 15, 1999. This is a false-color composite image made using shortwave infrared, infrared, and near-infrared wavelengths. Image provided by the USGS EROS Data Center Satellite Systems Branch.

2002-01-01

61

Experimental Quantum Cryptography Diplomarbeit von  

E-print Network

Experimental Quantum Cryptography Diplomarbeit von Henning Weier angefertigt unter der Anleitung Classical Cryptography 7 2.1 Overview: DES and Triple DES . . . . . . . . . . . 18 2.6.2 Asymmetric Cryptography: RSA

Weinfurter, Harald

62

Die Gleichnisse von dem Wahlverwandschaften  

E-print Network

KU ScholarWorks | The University of Kansas Pre-1923 Dissertations and Theses Collection Die Gleichnisse von dem Wahlverwandschaften 1911 by Mattie Kent This work was digitized by the KU Libraries’ Office of Scholarly Communication and Copyright...

Kent, Mattie

1911-01-01

63

Von Willebrand Disease (For Parents)  

MedlinePLUS

... in 1926. As a group, bleeding disorders (including hemophilia ) are rare. Von Willebrand disease is the most ... that is missing or defective when someone has hemophilia.) People with vWD have bleeding problems because the ...

64

von Braun and German Publisher  

NASA Technical Reports Server (NTRS)

In this photograph, Guenter Ogger of Capitol Magazine, West Germany, greets Marshall Space Flight Center Director, Dr. Wernher von Braun. Mr. Ogger interviewed the famous rocket scientist for his magazine.

1969-01-01

65

Zur allelopathischen Wirkung von Forstunkräutern  

Microsoft Academic Search

Zusammenfassung  Es wurde die Wirkung wäßriger Extrakte von fünf Unkrautarten (Agropyron repens, Capsella bursa pastoris, Lamium amplexicaule, Senecio vulgaris, Sonchus oleraceus) auf die Wurzellänge, den Anteil toter Wurzelspitzen und auf die Seitenwurzelbildung von in Quarzsand wachsendenPicea abies-Keimlingen untersucht. Zwischen den Extrakten aus verschiedenen Unkrautarten bestanden zum Teil sehr deutliche Wirkungsunterschiede.\\u000a Die Wurzellänge wurde bei höheren Extraktkonzentrationen generell reduziert, bei geringeren traten

H. J. Schuck; P. Schütt; Adelheid von Sydow

1976-01-01

66

John von Neumann, the Mathematician  

Microsoft Academic Search

Imagine a poll to choose the best-known mathematician of the twentieth century. No doubt the winner would be John von Neumann.\\u000a Reasons are seen, for instance, in the title of the excellent biography [M] by Macrae: John von Neumann. The Scientific Genius who Pioneered the Modern Computer, Game Theory, Nuclear Deterrence, and\\u000a Much More. Indeed, he was a fundamental figure

Domokos Szász

2011-01-01

67

Richard von Volkmann  

PubMed Central

Richard von Volkmann (1830–1889), one of the most important surgeons of the 19th century, is regarded as one of the fathers of orthopaedic surgery. He was a contemporary of Langenbeck, Esmarch, Lister, Billroth, Kocher, and Trendelenburg. He was head of the Department of Surgery at the University of Halle, Germany (1867–1889). His popularity attracted doctors and patients from all over the world. He was the lead physician for the German military during two wars. From this experience, he compared the mortality of civilian and war injuries and investigated the general poor hygienic conditions in civilian hospitals. This led him to introduce the “antiseptic technique” to Germany that was developed by Lister. His powers of observation and creativity led him to findings and achievements that to this day bear his name: Volkmann’s contracture and the Hueter-Volkmann law. Additionally, he was a gifted writer; he published not only scientific literature but also books of children’s fairy tales and poems under the pen name of Richard Leander, assuring him a permanent place in the world of literature as well as orthopaedics. PMID:18196438

Willy, Christian; Schneider, Peter; Engelhardt, Michael; Hargens, Alan R.

2008-01-01

68

Quantitative Thinking.  

ERIC Educational Resources Information Center

An appeal for more research to determine how to educate children as effectively as possible is made. Mathematics teachers can readily examine the educational problems of today in their classrooms since learning progress in mathematics can easily be measured and evaluated. Since mathematics teachers have learned to think in quantitative terms and…

DuBridge, Lee A.

69

Exponential size distribution of von Willebrand factor.  

PubMed

Von Willebrand Factor (VWF) is a multimeric protein crucial for hemostasis. Under shear flow, it acts as a mechanosensor responding with a size-dependent globule-stretch transition to increasing shear rates. Here, we quantify for the first time, to our knowledge, the size distribution of recombinant VWF and VWF-eGFP using a multilateral approach that involves quantitative gel analysis, fluorescence correlation spectroscopy, and total internal reflection fluorescence microscopy. We find an exponentially decaying size distribution of multimers for recombinant VWF as well as for VWF derived from blood samples in accordance with the notion of a step-growth polymerization process during VWF biosynthesis. The distribution is solely described by the extent of polymerization, which was found to be reduced in the case of the pathologically relevant mutant VWF-IIC. The VWF-specific protease ADAMTS13 systematically shifts the VWF size distribution toward smaller sizes. This dynamic evolution is monitored using fluorescence correlation spectroscopy and compared to a computer simulation of a random cleavage process relating ADAMTS13 concentration to the degree of VWF breakdown. Quantitative assessment of VWF size distribution in terms of an exponential might prove to be useful both as a valuable biophysical characterization and as a possible disease indicator for clinical applications. PMID:24010664

Lippok, Svenja; Obser, Tobias; Müller, Jochen P; Stierle, Valentin K; Benoit, Martin; Budde, Ulrich; Schneppenheim, Reinhard; Rädler, Joachim O

2013-09-01

70

Aufbau und Vergleich von Karten mit Hilfe von annotierten Mittelachsen zur  

E-print Network

-/Lokalisierung Studienarbeit Richard Bade Richard.Bade@student.uni-magdeburg.de Otto-von-Guericke-Universität Magdeburg 39106 Magdeburg Unter Betreuung von: Michael Fiegert Michael.Fiegert@siemens.com Siemens AG CT IC 6 OttoAufbau und Vergleich von Karten mit Hilfe von annotierten Mittelachsen zur Re

71

TTO-VON-GUER ICKE-UNIVERSIT  

E-print Network

O TTO-VON-GUER ICKE-UNIVERSIT �TMAGDEBUR G Otto-von-Guericke-Universit¨at Magdeburg Fakult¨at f Durchsatzsteigerung von bis zu 95% gegen¨uber der Nutzung eines einzigen Funkkanals. Weiterhin wurde nachgewiesen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 3.1.1 Ma�nahmen zur Erm¨oglichung zuverl¨assiger Kommunikation . 23 3.1.2 Verarbeitung von Paketen

72

Rays and souls in von Mangoldt planes  

E-print Network

We study rays and critical points of Busemann functions in von Mangoldt planes, which has applications to the structure of open complete manifolds with lower radial curvature bounds. We compute the set of souls for every von Mangoldt plane of nonnegative curvature. We show that each cone in the Euclidean 3-space can be smoothed to a von Mangoldt plane.

Belegradek, Igor

2011-01-01

73

Heft 127 Oliver Witt Erosionsstabilitt von  

E-print Network

Heft 127 Oliver Witt Erosionsstabilität von Gewässersedimenten und deren Bedeutung für den Erlangung der Würde eines Doktor-Ingenieurs (Dr.-Ing.) genehmigte Abhandlung Vorgelegt von Oliver Witt aus ausgewählter Stauhaltungen des Oberrheins von Dr.-Ing. Oliver Witt Eigenverlag des Instituts für Wasserbau der

Cirpka, Olaf Arie

74

Otto-von-Guericke-Universitat Magdeburg Diplomarbeit  

E-print Network

Otto-von-Guericke-Universit¨at Magdeburg Diplomarbeit Fourier Based Rendering Verfasser: Martin University, Vancouver (Canada) torsten@cs.sfu.ca Otto-von-Guericke Universit¨at, Magdeburg (Germany) klaus@isg.cs.uni-magdeburg.de #12;Spindler, Martin: Fourier Based Rendering, Diplomarbeit Otto-von-Guericke-Universit¨at, Magdeburg

Zhang, Richard "Hao"

75

Bestimmung der Körperlänge und des Lebensalters menschlicher Feten auf Grund der ersten Hand und ersten Fußwurzelknochenmaße, sowie der Größe des Atlas und des Epistropheus-Wirbelbogens  

Microsoft Academic Search

Es wurden die Größenmaße des I. Hand- und des I. Fußwurzelknochens und des Atlas- und Epistropheuswirbelbogens von 138 totgeborenen oder wenige Stunden nach der Geburt gestorbenen menschlichen Feten — 71 Knaben und 67 Mädchen mit einer Länge von 9–55 cm — bestimmt.

I. Gy. Fazekas; F. Kósa

1967-01-01

76

Aktivierung von Kohle mittels Kohlenstoffdioxyd  

Microsoft Academic Search

Zusammenfassung  \\u000a \\u000a \\u000a \\u000a 1. \\u000a \\u000a Einer jeden Temperatur entspricht eine — von der Temperatur abhngige — optimale Aktivierungsdauer, die bei greren Geschwindigkeiten\\u000a des CO2-Stromes und mit steigender Temperaturimmer krzer wird. bersteigt die Aktivierungsdauer den entsprechenden optimalen Wert,\\u000a so sinkt die Aktivitt der Kohle. Die Aktivitt wurde — mit gleichen Resultaten — an der Adsorption von C6H5OH, Cl2, C6H6 gemessen. Nur in einigen wenigen

P. P. Kosakewitsch; N. A. Ismailow

1931-01-01

77

Die Entwicklung von Psystatix Informatikprojekt  

E-print Network

Mathematik der Universität Bern von Frank Wettstein und Niklaus Jordi im Winter 2004/2005 Betreut durch: Prof) Neubrückstrasse 10 Neubrückstrasse 10 3012 Bern 3012 Bern #12;02.05.2005 Niklaus Jordi, Frank Wettstein 2

Nierstrasz, Oscar

78

Die Systemarchitektur von Windows 7  

Microsoft Academic Search

\\u000a Windows 7 ist die siebte und damit gegenwärtig neueste Version der Windows- Betriebssystem-Familie. Über die „7” im Namen\\u000a gab es viele Spekulationen: Ist die „7” eine Anlehnung an den Nachnamen von Bill Gates als einem der drei Microsoft-Gründern?\\u000a Schließlich ist das „G” der siebte Buchstabe im Alphabet.

Martin Grotegut

79

Rasche Bildung von Entmischungskörpern in Zellsäften von Buxus sempervirens  

Microsoft Academic Search

Zusammenfassung Die Zellen der unteren Blattepidermis vonBuxus sempervirens zeigen bei Behandlung mit starken (2—4 mol) KCNS-Lösungen nicht bloß die bekannten Erscheinungen der Kappen- und Tonoplastenplasmolyse, sondern es treten verschiedene Entmischungen in der Vakuole auf, und schließlich bleibt nach dem Platzen des Tonoplasten ein kugeliger, fester Körper in der Zelle als Rückstand liegen. Besser lassen sich diese Vorgänge an vitalgefärbten Zellen

Assunta Flasch; Helmut Kinzel

1954-01-01

80

Hermann von Helmholtz-Zentrum fr Kulturtechnik des Hermann von Helmholtz-Zentrums fr  

E-print Network

Hermann von Helmholtz-Zentrum für Kulturtechnik Satzung des Hermann von Helmholtz-Zentrums für/2008 3 Satzung des Hermann von Helmholtz-Zentrums für Kulturtechnik (HZK) Am 7. Dezember 2007 hat das Hermann von Helmholtz-Zentrum für Kulturtechnik die folgende �nderung der Satzung vom 06.03.2000 (Amtl

Röder, Beate

81

Duplikationen von Untereinheiten der chromosomalen DNS während der Evolution von Chironomus thummi  

Microsoft Academic Search

1.An Feulgen-gefärbten Speicheldrüsen-Chromosomen des Unterart-Bastards von Chironomus thummi wurden 30 verschiedene Querscheiben auf subspezifische Differenzen des DNS-Gehalts cytophotometrisch untersucht. Mit der gleichen Technik wurde die Höhe von DNS-Differenzen an den heterochromatischen Kinetochorscheiben der Speicheldrüsen-Chromosomen von Chironomus plumosus bestimmt.2.Bei subspezifischer Differenz des DNS-Gehalts enthalten die Querscheiben von Ch. thummi thummi das 2-, 4-, 8- oder 16fache an DNS wie ihre Homologen

H.-G. Keyl

1965-01-01

82

Unerlaubte Weitergabe von privaten Daten zwischen Android-Apps  

E-print Network

Unerlaubte Weitergabe von privaten Daten zwischen Android-Apps Analyse eines Szenarios #12;Unerlaubte Weitergabe von privaten Daten zwischen Android-Apps Abstract Malware unter Android kann Weitergabe von privaten Daten zwischen Android-Apps Inhaltsverzeichnis Inhaltsverzeichnis Glossar III

Apel, Sven

83

Bemerkungen zu der Arbeit von N. Uri: “Die katalytische Zersetzung von Wasserstoffsuperoxyd durch Mischkatalysatoren”  

Microsoft Academic Search

Die im Titel genannte Arbeit handelt von Katalyse in Gegenwart zweier Zusätze, von denen jeder einzelne an sich nicht zu katalysieren vermag. Dieser interessante Fall regt an, einen Mechanismus aufzuzeigen, der solches in dem betreffenden Substrat — Wasserstoffsuperoxyd, katalysiert bei Zusammenbestehen von Molybdat-(Wolframat-) und Cupriion — zu leisten vermag. Unter kritischer Diskussion einzelner in der genannten Arbeit enthaltener Ansätze wird

E. Abel

1950-01-01

84

Comparison of Filtering Methods for fMRI Datasets F. Kruggel, D. Y. von Cramon, and X. Descombes  

E-print Network

Comparison of Filtering Methods for fMRI Datasets F. Kruggel, D. Y. von Cramon, and X. Descombes August 31, 1998 When studying complex cognitive tasks using func- tional magnetic resonance imaging (fMRI is modulated onto foreground patches obtained from event-related fMRI experiments. Quantitative performance

Catholique de Louvain, Université

85

Elektrische und spektroskopische Charakterisierung von organischen Feldeffekttransistor-Strukturen.  

E-print Network

??In dieser Arbeit werden die Resultate aus den elektrischen Untersuchungen an organischen Feldeffekttransistoren (OFETs) auf der Basis von Pentacen und von verschiedenen Perylentetracarbonsäurediimid-Derivaten (PTCDI) vorgestellt… (more)

Lehmann, Daniel

2009-01-01

86

Langzeitstudie zum Fortpflanzungsverhalten von Testudo hermanni boettgeri und Testudo marginata.  

E-print Network

??Im Zeitraum von 1997 bis 2011 wurde eine Langzeitstudie zur Reproduktion von Landschildkröten durchgeführt. Dabei wurde je eine Gruppe der östlichen Unterart der Griechischen Landschildkröte,… (more)

Riener, Robert

2012-01-01

87

Molekulare und immunologische Charakterisierung von Profilin aus Weizen (Triticum aestivum).  

E-print Network

??Krankheiten die nach dem Verzehr von Weizenprodukten bzw. nach der Inhalation von Weizenmehl auftreten sind Zöliakie, Weizenallergie und Bäckerasthma. Eine weitere, jedoch selten auftretende Krankheit,… (more)

Forstenlechner, Peter

2008-01-01

88

List of Publications Utz von Wagner  

E-print Network

.; Wedig, W. V.: Nonlinear Stochastic Car Vibrations. ZAMM 81(2), 235 ­ 236, 2001. [10] von Wagner, U.; Hagedorn, P.; Nguyen, M. N.: Nonlinear Behavior of Piezo- Beam-Systems Subjected to Weak Electric Field. Proceedings of ASME DETC 2001, Pittsburgh, VIB 21488. #12;[11] Wedig, W. V.; von Wagner, U.: Stochastic Car

Berlin,Technische Universität

89

Dr. Wernher Von Braun at a picnic.  

NASA Technical Reports Server (NTRS)

Dr. Wernher Von Braun, director of the Marshall Space Flight Center, stakes claim to a table for the picnic celebrating man's first lunar landing. With Dr. Von Braun are his wife, Maria (seated, right), and son, Peter (back to camera). His daughter, Margrit, was also present, but is hidden from view by friends in this view.

1999-01-01

90

Dr. Wernher Von Braun greeting dignitaries.  

NASA Technical Reports Server (NTRS)

Dr. Wernher Von Braun, left, greets vice president Spiro T. Agnew in the Launch Control Center for the Apollo 14 mission. Between Dr. Von Braun and Mr. Agnew are their Royal Highnesses, The Prince and Princess of Spain. The royal visitors greeted the launch control team in th enter after the launch of Apollo 14.

1999-01-01

91

Die Absorptionsspektren von Vanadium, Titan und Scandium  

Microsoft Academic Search

Zusammenfassung Unter Benutzung eines elektrischen Ofens nach dem Muster der Öfen von A. King werden die Absorptionslinien der Dämpfe von Vanadium, Titan und Scandium bei 20000 C ermittelt. Die quantentheoretische Deutung dieser Ergebnisse gelingt unter Benutzung der bisher bekannten Gesetzmäßigkeiten in den Bogenspektren dieser Elemente, die einer kritischen Durchsicht unterzogen und insbesondere bei Titan durch Angabe neuer Multipletts vervollständigt werden.

H. Gieseler; W. Grotrian

1924-01-01

92

Die kombinierte Kompressionsmarknagelarthrodese von OSG und USG  

Microsoft Academic Search

Zusammenfassung Die operative Versteifung von oberem (OSG) und unterem Sprunggelenk (USG) ist bei fortgeschrittenen degenerativen Veränderungen beider Gelenke unterschiedlicher Genese auch bei zunehmender Verbreitung des Oberflächenersatzes am OSG die Therapie der Wahl. Bisher sind verschiedene Techniken zur tibiotalokalkanealen Arthrodese beschrieben worden, wobei sich die Kompressionsarthrodese mit internen Implantaten durchgesetzt hat. 20 Patienten, bei denen die kombinierte Arthrodese von OSG und

M. Goebel; T. Mückley; L. Gerdesmeyer; M. Militz; V. Bühren

2003-01-01

93

STRUKTURELLE GRUNDLAGEN UND MECHANIK VON ZYTOGELEN  

E-print Network

Naturwissenschaften Vorgelegt im Fachbereich Biologie der Johann Wolfgang Goethe-Universität in Frankfurt am Main von Oliver Wagner aus Köln Frankfurt 2000 (DF1) #12;ii vom Fachbereich Biologie der Johann Wolfgang GoetheSTRUKTURELLE GRUNDLAGEN UND MECHANIK VON ZYTOGELEN Dissertation zur Erlangung des Doktorgrades der

Wagner, Oliver

94

Verstehen und Verarbeiten von Bildern J. Baumeister  

E-print Network

Fachbereich Mathematik Johann Wolfgang Goethe ­ Universit¨at, Robert Mayer Strasse 6 ­ 10, D 60054 FrankfurtVerstehen und Verarbeiten von Bildern J. Baumeister 2. Mai 2000 Zusammenfassung: Mit der Zunahme der Rechnerleistung moderner Computer gewinnt die digi- tale Verarbeitung von Bildern eine

Baumeister, Johann

95

Quantitative Languages KRISHNENDU CHATTERJEE  

E-print Network

Quantitative Languages KRISHNENDU CHATTERJEE IST Austria (Institute of Science and Technology of Science and Technology Austria) and EPFL, Switzerland Quantitative generalizations of classical languages) to define several natural classes of quantitative languages over finite and infinite words; in particular

Doyen, Laurent

96

Von Karman Vortices over Broutona  

NASA Technical Reports Server (NTRS)

These Von Karman vortices formed over the islands of Broutona, Chirpoy, and Brat Chirpoyev ('Chirpoy's Brother'), all part of the Kuril Islands chain between Russia's Kamchatka Peninsula and Japan. This image was acquired by the Landsat 7 Enhanced Thematic Mapper plus (ETM+) sensor on May 6, 2000. This is a false-color composite image made using infrared, near-infrared, and red wavelengths. The image has also been sharpened using the sensor's panchromatic band. Image provided by the USGS EROS Data Center Satellite Systems Branch

2002-01-01

97

Seite 1 von 1 Interessenvertretung der Gasthrenden an der  

E-print Network

Seite 1 von 1 Interessenvertretung der Gasthörenden an der Carl von Ossietzky Universität Oldenburg Sprecher der Interessenvertretung der Gasthörenden der Carl von Ossietzky Universität Oldenburg wurde Lehre, das problemlose Miteinander von Jung und Alt, die gute Zusammenarbeit mit dem Center für

98

Otto von Guericke Universitat Magdeburg Fakultat fur Informatik  

E-print Network

Otto von Guericke Universit¨at Magdeburg Fakult¨at f¨ur Informatik Masterarbeit Forensisch sicheres sicheres L¨oschen in relationalen Datenbankmanagementsystemen Masterarbeit, Otto von Guericke Universit 3 2.1 L¨oschen und Anonymisieren von personenbezogenen Daten . . . . . . . 3 2.2 Architekturen von

Apel, Sven

99

Elektronische Charakterisierung von Silizium-Nanopartikeln aus der Gasphase  

E-print Network

;#12;Mit dem Wissen w¨achst der Zweifel. Johann Wolfgang von Goethe #12;#12;Zusammenfassung In derElektronische Charakterisierung von Silizium-Nanopartikeln aus der Gasphase Diplomarbeit zur Universit¨at Duisburg-Essen am Lehrstuhl von Prof. Dr. A. Lorke von Ingo Pl¨umel Duisburg, Juni 2004 #12

Lorke, Axel

100

Herausgegeben von der Prsidentin der Georg-August-Universitt Gttingen Redaktion: Von-Siebold-Str. 2 Telefon: E-Mail  

E-print Network

Herausgegeben von der Präsidentin der Georg-August-Universität Göttingen Redaktion: Von zur Bachelorarbeit ist der Erwerb von insgesamt mindestens 138 C aus Pflicht-, Wahlpflicht und zwei der folgenden oder der nach Buchstabe b. noch nicht belegten Module im Umfang von insgesamt

Gollisch, Tim

101

Herausgegeben von der Prsidentin der Georg-August-Universitt Gttingen Redaktion: Von-Siebold-Str. 2 Telefon: E-Mail  

E-print Network

Herausgegeben von der Präsidentin der Georg-August-Universität Göttingen Redaktion: Von folgenden oder der nach Buchstabe b. noch nicht belegten Module im Umfang von insgesamt wenigstens 10 C.04.2013/Nr. 19 Seite 542 B.Phy.5001 Die Vermittlung und Untersuchung von strömungsphysikalischen Vorgängen im

Gollisch, Tim

102

Kombination von chemischen und biologischen Methoden zum Abbau von Mineralölkohlenwasserstoffen im Boden.  

E-print Network

??Die Aufgabenstellung dieser Arbeit bestand darin, eine neue Methode zum Abbau von Mineralölkohlenwasserstoffe im Boden zu entwickeln, welche chemische mit biologischen Abbautechniken verbindet und somit… (more)

Hörnig, Juliane

2014-01-01

103

Von Kármán between Aachen and Pasadena  

NASA Astrophysics Data System (ADS)

In the Introduction the reader is referred back to the academic ceremonials held after Theodore von Kármán's death in Aachen in May 1963. His work as the first director of the Aerodynamisches Institut (Institute of Aerodynamics) of the RWTH Aachen University of Technology from 1913 on and his initiative to re-establish international cooperation after World War I, resulting in the International Union of Theoretical and Applied Mechanics (IUTAM), are commented on. The following chapter describes von Kármán's relation to his former teacher Ludwig Prandtl. Some of von Kármán's scientific contributions during his time in Aachen are briefly reviewed. Thereafter, his first contacts to the California Institute of Technology are covered. Finally, the scientific and political circumstances, which led to von Kármán's decision to leave Germany in the early thirties, are elucidated in some detail. The English translation of the titles of the Aachen papers is given in Appendix I.

Krause, Egon; Kalkmann, Ulrich

2013-05-01

104

Herstellung von Chitosan und einige Anwendungen  

NASA Astrophysics Data System (ADS)

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. Die aus Chitosan-Dispersionen hergestellten MCChB-Filme weisen bessere mechanische Eigenschaften (Bruchfestigkeit, Dehnung) und eine höhere Wasseraufnahmefähigkeit auf als Filme, die nach herkömmlichen Methoden aus sauerer Lösung hergestellt werden. Die Einführung von Proteinen ändert die mechanischen Eigenschaften der MCChB-Filme abhängig von der Art, der Proteine sowie des DD und der Mv des eingesetzte Chitosan. Die Zugabe von Protein beschleunigt den biologischen Abbau der MCChB-Filme. Aus den untersuchten MCChB-Filmen mit Proteinzusatz können leichte, reißfeste und dennoch elastische Materialen hergestellt werden. 4. Mit Hilfe von MCChB-Dispersion kann Papier modifiziert werden. Dadurch werden die mechanischen Eigenschaften verbessert und die Wasseraufnahme wird verringert. Die Zugabe von Proteinen verringert das Wasseraufnahmevermögen noch weiter. Ein geringes Wasseraufnahmevermögen ist der bedeutendste Faktor bei der Papierherstellung. Auch Papier, das mit einem MCChB-Protein-Komplexe modifiziert wurde, zeigt gute mechanische Eigenschaften. 5. Wird Chitosan durch unmittelbare Einführung von MCChB auf Cellulose-Fasern aufgebracht, so erhält man eine netzartige Struktur, während durch Ausfällung aufgebrachtes Chitosan eine dünne Schicht auf den Cellulose-Fasern bildet. Die netzartige Struktur erleichtert die Bioabbaubarkeit, während die Schichtstruktur diese erschwert. 6. Die guten mechanischen Eigenschaften, die geringe Wasseraufnahmefähigkeit und die mit Cellulose vergleichbare Bioabbaubarkeit von Papier, das mit MCChB modifiziert wurde, lassen MCChB für die Veredlung von Papier nützlich erscheinen. 1. Deacetylation of the crustacean chitosan causes drastically decrease in the Mv with increasing reaction temperature and time as well as the concentration of sodium hydroxide. However, the DD are relatively less affected. Pandalus borealis is a good source for production of chitosan having high Mv and low DD, whereas chitosan of medium to low Mv can ideally be prepared using krill chitin. Insect chitosan is prepared under milder condition a

Struszczyk, Marcin Henryk

2001-05-01

105

Alexander Hinneburg Konvertierung von CSV nach Arff  

E-print Network

�bung 3 Alexander Hinneburg #12;Aufgabe 1 · Konvertierung von CSV nach Arff ­ Durch Klicken im Weka Explorer ­ Kommando Zeile java -cp "c:\\Programme\\Weka-3-4\\weka.jar" weka.core.converters.CSVLoader genes = AML #12;Aufgabe 2 #12;Aufgabe 3 · Teilen der Daten mit Edit-Fkt von Weka · Teil A ­ alles richtig

Hinneburg, Alexander

106

Theoretische Aspekte in der Vergleichmäßigung von Schüttgütern  

Microsoft Academic Search

Zusammenfassung  Voraussetzung für den Aufbau und die Auslegung einer wirksamen Vergleichmäßigungsanlage ist die Kenntnis der Schwankungscharakteristik\\u000a des zu vergleichmäßigenden Merkmals im polydispersen Gutstrom. Der vielfach für die Auslegung herangezogene Materialbedarf\\u000a in der nachfolgenden Prozesseinheit führt zumeist zu nachhaltigen Fehlplanungen und Fehlentscheidungen in der apparativen\\u000a Ausrüstung der Vergleichmäßigungsanlage. Die Zeitfolgen von Merkmalswerten in Schüttgutmasseströmen gehorchen in den seltensten\\u000a Fällen einer Normalverteilung von

A. Böhm

2007-01-01

107

On 2-von Neumann Regular Rings  

Microsoft Academic Search

In this article, we consider 2-von Neumann regular rings, that is, rings R with the property that, if F2 ? F1 ? F0 ? E ? 0 is an exact sequence of R-modules with F0, F1, and F2 finitely generated free modules, then the module E is projective. For each positive integer m, as well as for m = ?, we exhibit a class of 2-von Neumann regular rings with

Najib Mahdou

2005-01-01

108

L’elaboratore di von Neumann  

Microsoft Academic Search

\\u000a \\u000a John von Neumann nacque ebreo ed ungherese a Budapest il 28 dicembre 1903 come Janos Neumann, e morì cattolico e statunitense a Washington l’8 febbraio 1957 con il nome con cui tutti lo conoscono. Teorizzò il funzionamento\\u000a di un calcolatore tramite programmi immessi nella memoria centrale, insieme a dati da elaborare. Il grande merito di John von Neumann fu dimostrare

Giovanni Carlo Ettorre

109

von Laue's Theorem and Its Applications  

E-print Network

von Laue's theorem, as well as its generalized form, is strictly proved in detail for its sufficient and necessary condition (SNC). This SNC version of Laue's theorem is used to analyze the classical electron. It is shown in general that, the total (Abraham=Minkowski) EM momentum and energy for the electrostatic field confined in a finite region of space cannot constitute a Lorentz four-vector. A deriving von Laue's theorem, which provides a criterion for a Lorentz invariant, is also presented.

Changbiao Wang

2015-01-14

110

Dr. von Braun With German Rocket Experimenters  

NASA Technical Reports Server (NTRS)

Dr. von Braun was among a famous group of rocket experimenters in Germany in the 1930s. This photograph is believed to be made on the occasion of Herman Oberth's Kegelduese liquid rocket engine being certified as to performance during firing. From left to right are R. Nebel, Dr. Ritter, Mr. Baermueller, Kurt Heinish, Herman Oberth, Klaus Riedel, Wernher von Braun, and an unidentified person.

1930-01-01

111

Modellierung von Aktienanlagen bei laufenden Umschichtungen und einer Besteuerung von Veräußerungsgewinnen  

Microsoft Academic Search

Dieser Beitrag entwickelt ein Verfahren, das die Komplexität der Endvermögensberechnung von Aktienanlagen unter Berücksichtigung der Besteuerung und regelmäßiger Portfolioumschichtung erheblich reduziert. Bisher ist eine vergleichbar präzise Berechnung wegen rekursiver Abhängigkeiten sehr aufwändig. Die Belastungswirkungen verschiedener Besteuerungsverfahren von Aktienanlagen sind unter der Verwendung des hergeleiteten Verfahrens nun einfacher bestimmbar, sogar dann, wenn sie sich im Zeitpunkt des Steuerzugriffs unterscheiden (Aktienfonds, Zertifikate,

Martin Fochmann; Dominik Rumpf

2008-01-01

112

Vorschlag fr Diplomarbeitsthema Untersuchung von bergewicht und Adipositas anhand von ROC-GLM-Modellen  

E-print Network

-GLM-Modellen Beschreibung: In der Arbeit Growth around puberty as predictor of adult obesity von Toschke et al. (2008 in US children. Applied Statistics, 48, 533-51 Pepe, M.S. (2003). The Statistical Evaluation of Medical, T., von Kries R. (2008). Growth around puberty as predictor of adult obesity. Eur J Clin Nutr

Gerkmann, Ralf

113

Ungewöhnliche Bildung von Brutkörpern an der Blattspitze von Dicranum tauricum SAPEHIN  

Microsoft Academic Search

Dicranum tauricum SAPEHIN (syn. D. strictum SCHLEICH .) war früher in Deutschland ein sehr seltenes Moos, das zwischen 1865 und 1930 im Gebiet von nur elf, und bis 1972 in 24 Messtischblättern nachg ewiesen wurde. Während HEGEWALD (1972) die rasche Zunahme von Fundorten noch auf die bessere Informations- und Reisemöglichkeiten der Bryologen zurückführte und eine Ausbreitung für unwahrscheinlich hielt, schrieb

Norbert J. Stapper

114

Dr. Wernher Von Braun with Dr. Christian Barnard.  

NASA Technical Reports Server (NTRS)

Dr. Christian Barnard Tours Marshall Space Flight Center. Shown in Dr. Von Braun's office are (left to right): Dr. Ernst Sthulinger, a representative from General Electric, Dr. Wernher Von Braun, Dr. Christian Barnard, and Dr. Eberhard Rees.

1999-01-01

115

Zur Kenntnis der Permeabilitätseigenschaften von Hippuris Vulgaris L  

Microsoft Academic Search

Zusammenfassung Die in den von Wahry (1936) für Luft- und Wasserblattzellen vonHippuris vulgaris L. vorgelegten Permeabilitätsreihen auftretenden Eigentümlichkeiten gaben den Anlaß zu einer näheren Untersuchung der Permeabilität dieser Zellen für einige Anelektrolyte.

J. E. Elo

1939-01-01

116

Otto-von-Guericke-Universitt Magdeburg School of Computer Science  

E-print Network

Otto-von-Guericke-Universität Magdeburg School of Computer Science Department of Technical Diplomarbeit, Otto-von-Guericke-Universität Magdeburg, 2007. #12;CONTENTS I Contents Contents i List of Figures

Apel, Sven

117

Otto-von-Guericke-Universitat Magdeburg Fakultat fur Informatik  

E-print Network

Otto-von-Guericke-Universit¨at Magdeburg Fakult¨at f¨ur Informatik Institut f¨ur verteilte Systeme Diplomarbeit Vergleich von Routingmetriken in drahtlosen Maschennetzwerken Jens Wien¨obst 5. Oktober 2007

118

Untersuchung zur Klassifizierung, Identifizierung und Differenzierung von Yersinia Arten.  

E-print Network

??Zur Identifizierung und Differenzierung von Y. pestis wurden mehrere PCR-Methoden entwickelt sowie eine Multiplex-PCR zur gleichzeitigen Identifizierung von Stämmen der Spezies Y. pestis und Y.… (more)

Amann, Sabine

2007-01-01

119

Zur Morphologie des Zentralnervensystems von Erethizon dorsatum , Linnaeus (Rodentia, Hystricomorpha)  

Microsoft Academic Search

Das Gehirn von Erethizon dorsatum (E. dorsatum dorsatum, Linnaeus 1758) wird beschrieben. Es ergibt sich bei der Analyse von 6 Gehirnen aus der gleichen Subspecies eine starke Variabilität in der Form der Hemisphären. Der Quotient Hypothalamuslänge: Großhirnlänge schwankt zwischen 0,21 und 0,29 mit einem Durchschnittswert von 0,25 Für Hystrix cristata, hodgsoni und javanicus wurde ein Wert von 0,26 errechnet. Der

G. Pilleri

1960-01-01

120

f¨ ur die Berechnung von digital rekonstruierten Rontgenbildern  

Microsoft Academic Search

Kurzfassung. Das Raycasting ist ein etabliertes Verfahren zur Berech- nung von Digital Rekonstruierten Rontgenbildern (DRRs), also auf Ba- sis von CT-Daten approximierten Radiographien, welche die Projektion eines Summationsbilds des 3D-CT-Volumens auf eine zweidimensionale Bildebene darstellen. Die Wirkung eines von einem Raycasting-Strahl durchquerten Voxels auf das Ergebnispixel im DRR kann unter anderem mit Hilfe von Transferfunktionen berechnet werden, die den Grauwert

Axel Newe; Richard Rascher-Friesenhausen; Heinz-Otto Peitgen

121

Otto-von-Guericke-Universitt Magdeburg Arbeitsgruppe Echtzeitsysteme und Kommunikation  

E-print Network

Otto-von-Guericke-Universität Magdeburg Arbeitsgruppe Echtzeitsysteme und Kommunikation Technische ist die Hamming-Distanz definiert? b) Berechnen Sie die Hamming-Distanz von Code-Wörtern anhand von-Bit-Fehlerkorrektur sinnvoll, die Codewortlänge möglichst lang zu wählen? Wie hängt konkret die Länge von der Anzahl der

122

Koinfektion vonKoinfektion von Chlamydia pneumoniaeChlamydia pneumoniae undund HaemophilusHaemophilus influenzaeinfluenzae im humanen Lungengewebsmodellim humanen Lungengewebsmodell  

E-print Network

Koinfektion vonKoinfektion von Chlamydia pneumoniaeChlamydia pneumoniae undund HaemophilusEinleitung Chlamydophila pneumoniae (Cpn) und nontypeable Haemo- philus influenzae (NTHI) sind häufig vorkommende respirato

Groppe, Jinghua

123

Über die Atmung von menschlichen Hirntumoren und Hirngewebe in vitro  

Microsoft Academic Search

Zusammenfassung Die O2-Aufnahme und CO2-Abgabe von menschlichen Hirngeweben und Hirntumoren wurden nach der Warburg-Methode bestimmt. Das vorgelegte Material stammt von 104 Einzelgeweben, die aus einem Operationsgut von 66 an intracraniellen Prozessen operierten Patienten gewonnen wurden.

H. Dohr

1961-01-01

124

EINBLICKE Nr. 46 / Herbst 2007 Carl von Ossietzky Universitt Oldenburg  

E-print Network

unter die Lupe: Frankensteins Monster, erdacht von der englischen Romantikerin Mary Shelley, Oskar the literary and cultural history of three quite different monsters: in Mary Shelly's Gothic novel Frankenstein:Boris Karloff (1887-1969) in derVerfil- mung von Mary Shelleys Frankenstein von 1931. #12;EINBLICKE NR.46 15

Oldenburg, Carl von Ossietzky Universität

125

Interessenvertretung der Gasthrenden an der Carl von Ossietzky Universitt Oldenburg  

E-print Network

Interessenvertretung der Gasthörenden an der Carl von Ossietzky Universität Oldenburg 1 Bericht für �ltere Studierende an Universitäten. Hier durfte die Carl von Ossietzky Universität Oldenburg das Zusammenleben von Jung und Alt förderlich ist. #12;Interessenvertretung der Gasthörenden an der

126

Zelltyp-spezifische Mikroanalyse von Arabidopsis thaliana-Blättern  

Microsoft Academic Search

Im ersten Teil der Arbeit wurden Strategien zur Analyse von Transkripten erarbeitet. Die ersten Versuche zielten darauf ab, in mit Glaskapillaren genommenen Einzelzellproben verschiedener Gewebeschichten RT-PCR durchzuführen, um spezifische Transkripte nachweisen zu können. Dies gelang für eine Reihe von Genen aus verschiedenen Pflanzenspezies. Dabei konnten sowohl Transkripte stark wie auch schwach exprimierter Gene nachgewiesen werden. Für die Erstellung von Gewebe-spezifischen

Stephan Peter Brandt

2002-01-01

127

Otto-von-Guericke-University Magdeburg School of Computer Science  

E-print Network

Otto-von-Guericke-University Magdeburg School of Computer Science Department of Technical 20, 2008 Advisors: Prof. Dr. rer. nat. habil. Gunter Saake Otto-von-Guericke-University Magdeburg¨um, Thomas: Reasoning about Feature Model Edits Bachelor Thesis, Otto-von-Guericke-University Magdeburg, 2008

Kaestner, Christian

128

Otto-von-Guericke-Universitat Magdeburg Fakultat fur Informatik  

E-print Network

Otto-von-Guericke-Universit¨at Magdeburg Fakult¨at f¨ur Informatik Institut f¨ur Technische und (IVS) Otto-von-Guericke-Universit¨at Magdeburg Fakult¨at f¨ur Informatik Postfach 4120, D­39016 Programmie- rung eingebetteter Systeme Diplomarbeit, Otto-von-Guericke-Universit¨at Magdeburg, 2008. #12;i

Apel, Sven

129

Mehr Markt im Hochschulbereich: Zur Effizienz und Gerechtigkeit von Studiengebühren  

Microsoft Academic Search

Das Bundesverfassungsgericht hat gesprochen: Das im Hochschulrahmengesetz enthaltene Verbot, bis zum ersten berufsqualifizierenden Abschluß Studiengebühren zu erheben, ist nichtig. Damit ist in Deutschland die Bahn frei für die Einführung von Studiengebühren. Aber sollten die Bundesländer, die in ihren Hochschulgesetzen die Erhebung von Studiengebühren vorgesehen haben, von diesem Recht auch Gebrauch machen? Für viele Studierende, für die Gewerkschaften, für zahlreiche Politiker,

Dieter Schmidtchen; Roland Kirstein

2005-01-01

130

Otto-von-Guericke-Universitat Magdeburg Fakultat fur Informatik  

E-print Network

Otto-von-Guericke-Universit¨at Magdeburg Fakult¨at f¨ur Informatik Institut f¨ur Verteilte Systeme-Hoc-Netzen Diplomarbeit, Otto-von-Guericke-Universit¨at Magdeburg, 2005. #12;Danksagung W¨ahrend der Entstehung dieser, von ihnen zu lernen, mit ihnen vieles zu unternehmen und dass mein Studium hier lehrreich, spannend

131

Otto-von-Guericke-Universitat Magdeburg Fakultat fur Informatik  

E-print Network

Otto-von-Guericke-Universit¨at Magdeburg Fakult¨at f¨ur Informatik Institut f¨ur Technische und Germany #12;Rosenm¨uller, Marko: Merkmalsorientierte Programmierung in C++ Diplomarbeit Otto-von-Guericke ­ FOP) ist ein Paradigma der Softwareentwicklung, welches das Erstellen von Software durch das

Apel, Sven

132

Otto von Guericke University Magdeburg Faculty of Computer Science  

E-print Network

Otto von Guericke University Magdeburg Faculty of Computer Science Department of Technical Study Thesis, Otto von Guericke University Magdeburg, 2009. #12;I Acknowledgements I would like to thank, Dipl.-Wirtsch.-Inf. Thomas Leich, Dipl.-Wirt.-Inform. Christian K¨astner, Dr.-Ing. Sven Apel Otto von

Apel, Sven

133

Otto-von-Guericke University Magdeburg School of Computer Science  

E-print Network

Otto-von-Guericke University Magdeburg School of Computer Science Department of Technical. Dr. rer. nat. habil. Gunter Saake, Dipl.-Wirtsch.-Inf. Thomas Leich Otto-von-Guericke University Bachelor Thesis, Otto-von-Guericke University Magde- burg, 2009. #12;CONTENTS I Contents Contents i List

Kaestner, Christian

134

Otto-von-Guericke-University Magdeburg School of Computer Science  

E-print Network

Otto-von-Guericke-University Magdeburg School of Computer Science Department of Technical: Stefan Kegel March 21, 2009 Supervisor: Prof. Dr. rer. nat. habil. Gunter Saake Otto-von-Guericke: Streamed verification of a data stream management benchmark Thesis, Otto-von-Guericke-University Magdeburg

Kaestner, Christian

135

Otto-von-Guericke-Universitat Magdeburg Fakultat fur Informatik  

E-print Network

Otto-von-Guericke-Universit¨at Magdeburg Fakult¨at f¨ur Informatik Institut f¨ur Technische und Modularisierungstechniken und ihre Bedeutung f¨ur qualitativ hochwertige Software Diplomarbeit, Otto-von-Guericke 1 2 Grundlagen 3 2.1 Definition der Qualit¨at von Software . . . . . . . . . . . . . . . . . . . . 3

Apel, Sven

136

Fakultt fr Informatik Otto-von-Guericke-Universitt Magdeburg  

E-print Network

Fakultät für Informatik Otto-von-Guericke-Universität Magdeburg Nr.: FIN-014-2009 Flexible Runtime Arbeitsgruppe Datenbanken #12;Fakultät für Informatik Otto-von-Guericke-Universität Magdeburg Nr.: FIN-014. Saake Arbeitsgruppe Datenbanken #12;Impressum (§ 5 TMG): Herausgeber: Otto-von-Guericke

Kaestner, Christian

137

Fakultt fr Informatik Otto-von-Guericke-Universitt Magdeburg  

E-print Network

Fakultät für Informatik Otto-von-Guericke-Universität Magdeburg Nr.: FIN-04-2012 Analysis Schaefer, Gunter Saake Arbeitsgruppe Datenbanken #12;Fakultät für Informatik Otto-von-Guericke (Internet) Elektronische Zeitschriftenreihe der Fakultät für Informatik der Otto-von-Guericke

Apel, Sven

138

Otto-von-Guericke Universitat Magdeburg Fakultat fur Informatik  

E-print Network

Otto-von-Guericke Universit¨at Magdeburg Fakult¨at f¨ur Informatik Master´s Thesis Entwicklung Master´s Thesis, Otto-von-Guericke Universit¨at Magdeburg, 2010. #12;Danksagung An dieser Stelle m . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 3.2.2 FeatureHouse . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 3.3 Abbildung von

Kaestner, Christian

139

Otto-von-Guericke-Universitt Magdeburg Fakultt fr Informatik  

E-print Network

Otto-von-Guericke-Universität Magdeburg Fakultät für Informatik Institut für Verteilte Systeme ein verteiltes, DSP-basiertes Steuerungssystem eines Rasterkraftmikroskops März 2004 vorgelegt von Kurzfassung Mit Hilfe der Rastersondenmikroskopie ist es möglich, einen kleinen Ausschnitt der Oberfläche von

140

Versuche zum Einfluß von Herbiziden auf die Embryonalentwicklung von Phasianus colchicus spec. (L.) und Coturnix coturnix japonica (L.)  

Microsoft Academic Search

Zusammenfassung Dargestellt werden Versuche über den Einfluß von Herbiziden mit den Wirkstoffen 2,4-D, MCPA und 2,4,5-T auf die Embryonalentwicklung vonPhasianus colchicus spec. (L.) undCoturnix coturnix japonica (L.). Angeregt wurden die Versuche durch Untersuchungsbefunde vonLutz-Ostertag undLutz (1970), die nach Besprühen von Fasanen-, Rebhuhn- und Rothuhneiern mit einem 2,4-D-haltigen Präparat in normaler Aufwandmenge hohe Mortalitätsraten sowie Anomalien und Sterilität fanden.

H. Spittler

1976-01-01

141

Von Neumann Entropy-Preserving Quantum Operations  

E-print Network

For a given quantum state $\\rho$ and two quantum operations $\\Phi$ and $\\Psi$, the information encoded in the quantum state $\\rho$ is quantified by its von Neumann entropy $\\S(\\rho)$. By the famous Choi-Jamio{\\l}kowski isomorphism, the quantum operation $\\Phi$ can be transformed into a bipartite state, the von Neumann entropy $\\S^{\\mathrm{map}}(\\Phi)$ of the bipartite state describes the decoherence induced by $\\Phi$. In this Letter, we characterize not only the pairs $(\\Phi, \\rho)$ which satisfy $\\S(\\Phi(\\rho))=\\S(\\rho)$, but also the pairs $(\\Phi, \\Psi)$ which satisfy $\\S^{\\mathrm{map}}(\\Phi\\circ\\Psi) = \\S^{\\mathrm{map}}(\\Psi)$.

Lin Zhang; Junde Wu

2011-10-12

142

6 Funktionen 6.3 Deklaration von Funktionen (,,Prototyp") 6-20(196) 6.3 Deklaration von Funktionen (,,Prototyp")  

E-print Network

ihrer Definition Deklaration1.c 4 #include 5 6 // (Vorab-)Deklaration von pong(): ,,Prototyp" 7 int pong(int i); 8 9 // Deklaration/Definition von ping() 10 int ping(int k) 11 { 12 printf("Ping-"); 13 14 // Benutzung von pong() vor Definition möglich wegen obiger Deklaration 15 return pong(k - 1

Arndt, Holger

143

Qualitative and Quantitative  

E-print Network

Qualitative and Quantitative Reliability AssessmentKARAMA KANOUN, MOHAMED KAÃ?NICHE, and JEAN-CLAUDE LAPRIE French National Organization for Scientific Research Traditional system reliability efforts have

Kaâniche, Mohamed

144

Aufbau eines Experimentes zur Messung der Emissionswahrscheinlichkeit von Bremsstrahlung im alpha-Zerfall von Polonium-210.  

E-print Network

??Die Emissionswahrscheinlichkeit von Bremsstrahlung kann in den meisten Fällen sehr gut semi-klassisch beschrieben werden. Beim Alpha-Zerfall jedoch tunnelt das Alpha-Teilchen durch die Coulomb-Barriere des Kernes,… (more)

Boie, Hans-Hermann

145

Einleitung Chevalley-Basis von L Satz von Kostant Zulassige Gitter Ende Chevalley-Gruppen  

E-print Network

Einleitung Chevalley-Basis von L Satz von Kostant Zul¨assige Gitter Ende Chevalley-Gruppen Justus-Liebig-Universit¨at Gie�en Stephan Weispfenning Mathematisches Institut Justus-Liebig-Universit¨at Gie�en 18.03.2011 Stephan Weispfenning ­ Seminarvortrag ¨uber Chevalley-Gruppen in Darmstadt ­ Justus-Liebig-Universit¨at Gie�en #12

Waldecker, Rebecca

146

20 Kombination von C++ und Java 20-1(368) 20 Kombination von C++ und Java  

E-print Network

20 Kombination von C++ und Java 20-1(368) 20 Kombination von C++ und Java Inhalt 20.1 Java Native Interface (JNI) 20.1.1 C++-Funktionen aus Java aufrufen 20.1.2 Java-Funktionen aus C++ aufrufen 20.2 gcj und das Compiled Native Interface (CNI) 20.2.1 C++-Funktionen aus Java aufrufen 20.2.2 Java-Funktionen aus

Arndt, Holger

147

20 Kombination von C++ und Java 20-1 20 Kombination von C++ und Java  

E-print Network

20 Kombination von C++ und Java 20-1 20 Kombination von C++ und Java Inhalt 20.1 Java Native Interface (JNI) 20.1.1 C++-Funktionen aus Java aufrufen 20.1.2 Java-Funktionen aus C++ aufrufen 20.2 gcj und das Cygnus Native Interface (CNI) 20.2.1 C++-Funktionen aus Java aufrufen 20.2.2 Java-Funktionen aus C

Arndt, Holger

148

A note on derivations of Murray-von Neumann algebras.  

PubMed

A Murray-von Neumann algebra is the algebra of operators affiliated with a finite von Neumann algebra. In this article, we first present a brief introduction to the theory of derivations of operator algebras from both the physical and mathematical points of view. We then describe our recent work on derivations of Murray-von Neumann algebras. We show that the "extended derivations" of a Murray-von Neumann algebra, those that map the associated finite von Neumann algebra into itself, are inner. In particular, we prove that the only derivation that maps a Murray-von Neumann algebra associated with a factor of type II1 into that factor is 0. Those results are extensions of Singer's seminal result answering a question of Kaplansky, as applied to von Neumann algebras: The algebra may be noncommutative and may even contain unbounded elements. PMID:24469831

Kadison, Richard V; Liu, Zhe

2014-02-11

149

A note on derivations of Murray–von Neumann algebras  

PubMed Central

A Murray–von Neumann algebra is the algebra of operators affiliated with a finite von Neumann algebra. In this article, we first present a brief introduction to the theory of derivations of operator algebras from both the physical and mathematical points of view. We then describe our recent work on derivations of Murray–von Neumann algebras. We show that the “extended derivations” of a Murray–von Neumann algebra, those that map the associated finite von Neumann algebra into itself, are inner. In particular, we prove that the only derivation that maps a Murray–von Neumann algebra associated with a factor of type II1 into that factor is 0. Those results are extensions of Singer’s seminal result answering a question of Kaplansky, as applied to von Neumann algebras: The algebra may be noncommutative and may even contain unbounded elements. PMID:24469831

Kadison, Richard V.; Liu, Zhe

2014-01-01

150

Von Steinadler ( Aquila chrysaëtos ) in Tirol  

Microsoft Academic Search

Zusammenfassung Nachdem im Jahre 1958\\/59 in Tirol der Bestand an Steinadlern durch Abschuß von mindestens 20 Exemplaren stark reduziert worden war, wurde gefordert, daß weiteren Abschüssen genaue wissenschaftliche Untersuchungen über Bestand u. dgl. vorausgehen müssen. In den folgenden Jahren wurden 13 beflogene Horste kontrolliert und die Jungadler beringt. Stichprobenartige Untersuchungen gaben dabei auch über die Ernährung der Jungen Aufschluß. Schließlich

F. Niederwolfsgruber

1964-01-01

151

Hermann von Helmholtz (1821-1894)  

E-print Network

Hermann von Helmholtz (1821-1894) Notes for Multimedia Fluid Mechanics Cambridge University Press, 2008 The breadth of Helmholtz's interests and contributions is outstanding. He is one of the rare the freedom to speculate on fundamental issues. The life of Helmholtz perfectly illustrates his point

�cole Normale Supérieure

152

Guido von Pirquet: Austrian pioneer of astronautics  

NASA Technical Reports Server (NTRS)

The works of Guido von Pirquet, Austrian pioneer of rocketry, were assessed. Major emphasis was given to Pirquet's calculation of the route to Venus which in fact was followed by the first Russian rocket to Venus. Of interest also is Pirquet's valuable construction of a space station and his analysis of interstellar space flight.

Sykora, F.

1977-01-01

153

Dr. Wernher Von Braun presents a certificate  

NASA Technical Reports Server (NTRS)

Dr. Wernher Von Braun (left), director of the Marshall Space Flight Center, presents a humorous certificate to Major General Charles W. Eifler, commanding general of Redstone Arsenal, at the close of a farewell luncheon for the general prior to General Eifler moving to a new European duty station.

1999-01-01

154

Paul von ragué schleyer (1930-2014).  

PubMed

Paul von Ragué Schleyer, Graham Perdue Professor at the University of Georgia passed away on November 21, 2014. Schleyer was an eminent and prolific physical organic chemist, whose pioneering contributions included the application of computational chemistry to broad fields of physical organic, inorganic, organometallic, and mechanistic chemistry concepts. PMID:25620623

Olah, George A; Prakash, G K Surya

2015-02-16

155

Heinz von Foerster and the Mansfield Amendment  

Microsoft Academic Search

Heinz von Foerster was the founder and director of the Biological Computer Laboratory (BCL) at the University of Illinois in Urbana-Champaign. BCL existed from 1957 to 1976.In 1976 Heinz retired and moved to California. One revealing story about Heinz and the Biological Computer Laboratory concerns the Mansfield Amendment, which led to the closing of BCL. I was a graduate student

Stuart Umpleby

156

The von Nardroff Color Mixing Apparatus  

Microsoft Academic Search

Ernest von Nardroff gave his name to the color mixing apparatus shown in Fig. 1. The basic idea behind this demonstration is to produce three beams of colored light that may be projected onto a white surface. If beams of red, blue, and green are overlapped to produce a figure like a three leaf clover or a Venn diagram, the

Thomas B. Greenslade

2005-01-01

157

Genetics Home Reference: Von Willebrand disease  

MedlinePLUS

... nosebleeds, and excessive bleeding or oozing following an injury, surgery, or dental work. Mild forms of von Willebrand disease may become apparent only when abnormal bleeding occurs following surgery or a serious injury. Women with this condition typically have heavy or ...

158

BER DIE WIRKUNG VON POLLENEXTRAKTEN UND DUFTSTOFFEN  

E-print Network

Ã?BER DIE WIRKUNG VON POLLENEXTRAKTEN UND DUFTSTOFFEN AUF DAS SAMMEL- UND WERBEVERHALTEN HÃ?SELNDER MATTERS ON THE COLLECTING AND RECRUITING ACTIVITIES OF HONEY-BEES ( 4PIS MELLIFICA L.) 1. With extracts of alder-pollen, hazel pollen, and a mixture of pollen it was possible to release vivid dancing among bees

Boyer, Edmond

159

Normalizers of Finite von Neumann Algebras  

E-print Network

\\subseteq M is an inclusion of separable II_1 factors. We show that N_M(B) imposes a certain "discrete" structure on the generated von Neumann algebra. By analyzing the bimodule structure of certain subalgebras of N_M(B)'', this leads to a "Galois...

Cameron, Jan Michael

2010-10-12

160

Einsatz von Web Services im Semantic Web  

E-print Network

Einsatz von Web Services im Semantic Web am Beispiel der RACER Engine und OWL-QL Jan Galinski Aufbau der Arbeit . . . . . . . . . . . . . . . . . . . . . 2 2 Grundlagen 5 2.1 Semantic Web . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.1.1 Komponenten des Semantic Web . . . . . . . . . . . . . . . . . . . . 6 2.1.2 Repräsentation

Moeller, Ralf

161

J. W. von Goethe und die Entomologie  

Microsoft Academic Search

J. W. von Goethe is famous for his Faust I and II, where we find wonderful verses about various insects (very interesting for entomologists); he investigated the anatomy, behaviour and the way of life of some moths (posthum published by KUHN, 1987) as well and he has known the biology of the army worms {Lycoria militaris Nowicki) and some interesting

J. W. von Goethe; Wolfgang Schedl

162

Entwicklung von Landnutzungsszenarien für landschaftsökologische Fragestellungen  

NASA Astrophysics Data System (ADS)

Die Landschaften Mitteleuropas sind das Resultat einer langwierigen Geschichte menschlicher Landnutzung mit ihren unterschiedlichen, z.T. konkurrierenden Nutzungsansprüchen. Durch eine überwiegend intensive Beanspruchung haben die direkten und indirekten Auswirkungen der Landnutzung in vielen Fällen zu Umweltproblemen geführt. Die Disziplin der Landschaftsökologie hat es sich zur Aufgabe gemacht, Konzepte für eine nachhaltige Nutzung der Landschaft zu entwickeln. Eine wichtige Fragestellung stellt dabei die Abschätzung der möglichen Folgen von Landnutzungsänderungen dar. Für die Analyse der relevanten Prozesse in der Landschaft werden häufig mathematische Modelle eingesetzt, welche es erlauben die Landschaft unter aktuellen Verhältnissen oder hinsichtlich veränderter Rahmenbedingungen zu untersuchen. Die hypothetische Änderung der Landnutzung, die als Landnutzungsszenario bezeichnet wird, verkörpert eine wesentliche Modifikation der Rahmenbedingungen, weil Landnutzung mageblich Einfluss auf die natürlichen Prozesse der Landschaft nimmt. Während die Antriebskräfte einer solchen Änderung überwiegend von sozio-ökonomischen und politischen Entscheidungen gesteuert werden, orientiert sich die exakte Verortung der Landnutzungsänderungen an den naturräumlichen Bedingungen und folgt z.T. erkennbaren Regeln. Anhand dieser Vorgaben ist es möglich, räumlich explizite Landnutzungsszenarien zu entwickeln, die als Eingangsdaten für die Modellierung verschiedener landschaftsökologischer Fragestellungen wie z.B. für die Untersuchung des Einflusses der Landnutzung auf den Wasserhaushalt, die Erosionsgefahr oder die Habitatqualität dienen können. Im Rahmen dieser Dissertation wurde das rasterbasierte deterministische Allokationsmodell luck (Land Use Change Scenario Kit) für die explizite Verortung der Landnutzungsänderungen entwickelt. Es basiert auf den in der Landschaftsökologie üblichen räumlichen Daten wie Landnutzung, Boden sowie Topographie und richtet sich bei der Szenarienableitung nach den Leitbildern der Landschaftsplanung. Das Modell fut auf der Hypothese, dass das Landnutzungsmuster als Funktion seiner landschaftsökologischen Faktoren beschrieben werden kann. Das Veränderungspotenzial einer Landnutzungseinheit resultiert im Modell aus einer Kombination der Bewertung der relativen Eignung des Standortes für die jeweilige Landnutzung und der Berücksichtigung von Standorteigenschaften der umliegenden Nachbarn. Die Durchführung der Landnutzungsänderung im Modell ist iterativ angelegt, um den graduellen Prozess des Landschaftswandels nachvollziehen zu können. Als Fallbeispiel für die Anwendung solcher räumlich expliziten Landnutzungsszenarien dient die Fragestellung, inwieweit Landnutzungsänderungen die Hochwasserentstehung beeinflussen. Um den Einfluss auf die Hochwasserentstehung für jede der Landnutzungskategorien – bebaute, landwirtschaftlich genutzte und naturnahe Flächen – abschätzen zu können, wird im Landnutzungsmodell luck exemplarisch für jede Kategorie ein Teilmodell für die Veränderung von Landnutzung angeboten: 1) Ausdehnung der Siedlungsfläche: Dieses Teilmodell fut auf der Annahme, dass sich Siedlungen nur in direkter Nachbarschaft bereits bestehender Bebauung und bevorzugt entlang von Entwicklungsachsen ausbreiten. Steile Hangneigungen stellen für potenzielle Standorte ein Hemmnis bei der Ausbreitung dar. 2) Stilllegung von Grenzertragsackerflächen: Gemä der Hypothese, dass sich die Stilllegung von Ackerflächen an der potenziellen Ertragsleistung der Standorte orientiert, werden in diesem Teilmodell alle Ackerstandorte dahingehend bewertet und die Flächen mit der geringsten Leistungsfähigkeit stillgelegt. Bei homogenen Gebietseigenschaften werden die Stilllegungsflächen zufällig auf die Ackerfläche verteilt. 3) Etablierung von Schutzgebieten in Ufer- und Auenbereichen: Ausgehend von der These, dass sich entlang von Flüssen sensible Flächen befinden, deren Schutz positive Folgen für das Leistungsvermögen der Landschaft haben kann, w

Fritsch, Uta

2002-04-01

163

How I treat type 2 variant forms of von Willebrand disease.  

PubMed

Type 2 von Willebrand disease (VWD) includes a wide range of qualitative abnormalities of von Willebrand factor structure and function resulting in a variable bleeding tendency. According to the current classification, 4 different subtypes can be identified, each with distinctive phenotypic and therapeutic characteristics. Current available laboratory methods allow a straightforward approach to VWD subtyping, and although the precise molecular characterization remains complex, it is not required for appropriate treatment of the vast majority of cases. Desmopressin can be useful only in a few type 2 cases compared with patients with actual quantitative deficiency (type 1), most often in variants with a nearly normal multimeric pattern (type 2M). However, since no laboratory test accurately predicts response to desmopressin, a trial test should always be performed in all type 2 VWD patients, with the exception of type 2B ones. Replacement therapy with plasma-derived von Willebrand factor-factor VIII concentrates represents the safe mainstay of treatment of all patients, particularly those not responding to desmopressin or requiring a sustained hemostatic correction because of major surgery or bleeding. A significant patient bleeding history correlates with increased bleeding risk and should be considered in tailoring the optimal antihemorrhagic prophylaxis in the individual patient. PMID:25477497

Tosetto, Alberto; Castaman, Giancarlo

2015-02-01

164

Numerical study of impeller-driven von Kármán flows via a volume penalization method  

NASA Astrophysics Data System (ADS)

Studying strongly turbulent flows is still a major challenge in fluid dynamics. It is highly desirable to have comparable experiments to obtain a better understanding of the mechanisms generating turbulence. The von Kármán flow apparatus is one of those experiments that has been used in various turbulence studies by different experimental groups over the last two decades. The von Kármán flow apparatus produces a highly turbulent flow inside a cylinder vessel driven by two counter-rotating impellers. The studies cover a broad range of physical systems including incompressible flows, especially water and air, magnetohydrodynamic systems using liquid metal for understanding the important topic of the dynamo instability, particle tracking to study Lagrangian type turbulence and recently quantum turbulence in super-fluid helium. Therefore, accompanying numerical studies of the von Kármán flow that compare quantitatively data with those from experiments are of high importance for understanding the mechanism producing the characteristic flow patterns. We present a direct numerical simulation (DNS) version the von Kármán flow, forced by two rotating impellers. The cylinder geometry and the rotating objects are modelled via a penalization method and implemented in a massive parallel pseudo-spectral Navier–Stokes solver. From the wide range of different impellers used in von Kármán water and sodium experiments we choose a special configuration (TM28), in order to compare our simulations with the according set of well documented water experiments. Though this configuration is different from the one in the final VKS experiment (TM73), using our method it is quite easy to change the impeller shape to the one actually used in VKS. The decomposition into poloidal and toroidal components and the mean velocity field from our simulations are in good agreement with experimental results. In addition, we analysed the flow structure close to the impeller blades, a region hardly accessible to experiments. Depending on the blade geometry different vortex topologies are found. The very promising results imply that our numerical modelling could also be applied to other physical systems and configurations driven by the von Kármán flow.

Kreuzahler, S.; Schulz, D.; Homann, H.; Ponty, Y.; Grauer, R.

2014-10-01

165

Quantitative dispersion microscopy  

PubMed Central

Refractive index dispersion is an intrinsic optical property and a useful source of contrast in biological imaging studies. In this report, we present the first dispersion phase imaging of living eukaryotic cells. We have developed quantitative dispersion microscopy based on the principle of quantitative phase microscopy. The dual-wavelength quantitative phase microscope makes phase measurements at 310 nm and 400 nm wavelengths to quantify dispersion (refractive index increment ratio) of live cells. The measured dispersion of living HeLa cells is found to be around 1.088, which agrees well with that measured directly for protein solutions using total internal reflection. This technique, together with the dry mass and morphology measurements provided by quantitative phase microscopy, could prove to be a useful tool for distinguishing different types of biomaterials and studying spatial inhomogeneities of biological samples. PMID:21113234

Fu, Dan; Choi, Wonshik; Sung, Yongjin; Yaqoob, Zahid; Dasari, Ramachandra R.; Feld, Michael

2010-01-01

166

Quantitative PCR Protocol  

NSDL National Science Digital Library

This protocol describes how to genotype mice using Quantitative Polymerase Chain Reaction (PCR). The protocol focuses specifically on Ts65Dn mice, but can be used as a basis for genotyping ohter strains.

The Jackson Laboratory (The Jackson Laboratory)

2012-01-06

167

Quantitative receptor autoradiography  

SciTech Connect

Quantitative receptor autoradiography addresses the topic of technical and scientific advances in the sphere of quantitative autoradiography. The volume opens with a overview of the field from a historical and critical perspective. Following is a detailed discussion of in vitro data obtained from a variety of neurotransmitter systems. The next section explores applications of autoradiography, and the final two chapters consider experimental models. Methodological considerations are emphasized, including the use of computers for image analysis.

Boast, C.A.; Snowhill, E.W.; Altar, C.A.

1986-01-01

168

Early turbulence in von Karman swirling flow of polymer solutions  

NASA Astrophysics Data System (ADS)

We present quantitative experimental results on the transition to early turbulence in von Karman swirling flow of water- and water-sugar-based polymer solutions compared to the transition to turbulence in their Newtonian solvents by measurements of solely global quantities as torque ?(t) and pressure p(t) with large statistics as a function of Re. For the first time the transition values of Re_c\\textit{turb} to fully developed turbulence and turbulent drag reduction regime Re_c\\textit{TDR} are obtained as functions of elasticity El by using the solvents with different viscosities and polymer concentrations ?. Two scaling regions for fundamental turbulent characteristics are identified and they correspond to the turbulent and TDR regimes. Both Re_c\\textit{turb} and Re_c\\textit{TDR} are found via the dependence of the friction coefficient Cf and Cp, defined through scaled average torque \\bar? and rms pressure fluctuations p\\textit{rms} , respectively, on Re for different El and ? and via the limits of the two scaling regions.

Burnishev, Yuri; Steinberg, Victor

2015-01-01

169

Compositional Quantitative Reasoning Krishnendu Chatterjee  

E-print Network

Compositional Quantitative Reasoning Krishnendu Chatterjee UC Berkeley Luca de Alfaro UC Santa Cruz express a wide variety of quantitative system prop- erties, such as resource consumption, price rules for compositional reasoning have quantitative counterparts in our setting. While our general

Henzinger, Thomas A.

170

Zeno Dynamics of von Neumann Algebras  

E-print Network

The dynamical quantum Zeno effect is studied in the context of von Neumann algebras. We identify a localized subalgebra on which the Zeno dynamics acts by automorphisms. The Zeno dynamics coincides with the modular dynamics of that subalgebra, if an additional assumption is satisfied. This relates the modular operator of that subalgebra to the modular operator of the original algebra by a variant of the Kato-Lie-Trotter product formula.

Andreas U. Schmidt

2002-03-06

171

Zur Morphologie des Gynözeums von Berberis  

Microsoft Academic Search

Zusammenfassung An Hand abnorm dimerer Gynözeen vonBerberis vulgaris wird die Frage nach einer möglichen Pseudomonomerie desBerberis-Pistills neuerlich aufgeworfen. Der hier mögliche Vergleich zwischen sicheren Einzelkarpellen mit dem normalen Pistill ergibt aber einwandfrei, daß in beiden Organen die Bündel einander vollkommen entsprechen, daß also im normalen Gynözeum keine Restbündel eventuell eingeschmolzener Karpelle vorhanden sind und daß dieses Gynözeum somit echt monomer

Walter Leinfellner

1957-01-01

172

Versuche zur vegetativen Annäherung von Steinkleeraten ( Melilotus )  

Microsoft Academic Search

1.Mit dem Ziel der vegetativen Annäherung vonMelilotus albus einerseits sowieM. sulcatus undM. messanensis andererseits wurden 2553 reziproke Pfropfungen durchgeführt. Die Reiser der zweijährigen ArtM. albus bildeten nach dem Anwachsen auf den beiden anderen einjährigen Arten an der Pfropfstelle starke Wucherungen aus. Deshalb starben bei diesen Pfropfungen bedeutend mehr Reiser ab als bei den Kombinationen mitM. albus als Unterlage. Als vermutliche

Erich Tellhelm

1965-01-01

173

Heinrich Von Kleist Und Die Romantik  

E-print Network

Stimmungsreichen: Es zieht ihn unwiderstehlich zur Romantik. Freilich besass Kleist auch Eigenschaften, die die Romantik garnicht kannte. So haelt sich Kleist von dem Phrasennebel, dem romantisch Verschwommenen fern; der witzige, hoehnische Uebermut der andern... Romantiker war ihm nicht eigen. Die mit dem eigenen Kunstwerk spie- lende Ironie kennt er nicht; er beachtet streng die Ge- setze des Dramas. In knappe Form mit erschuetternder Wucht huellt er nur das Wesentliche ein, und je groesser die Charaktere, je...

Kliewer, Johann Carl

1914-06-01

174

Seite 1 von 1 Universitt Hamburg  

E-print Network

Seite 1 von 1 In der Universität Hamburg U N I V E R S I T � T S K O L L E G Fakultät Wirtschafts/wissenschaftlicher Mitarbeiter im Projekt ,,Hamburger Einführungsmodul in das erfolgreiche Studium ­ Hemisphere" im Rahmen des Universität Hamburg wird seit April 2012 durch Drittmittel aus dem Qualitätspakt Lehre (BMBF) ermöglicht. Es

Hamburg,.Universität

175

Fakultt fr Informatik Otto-von-Guericke-Universitt Magdeburg  

E-print Network

Fakultät für Informatik Otto-von-Guericke-Universität Magdeburg Nr.: FIN-15-2008 Refactoring Feature Modules Martin Kuhlemann Arbeitsgruppe Datenbanken #12;Fakultät für Informatik Otto-von-Guericke;Impressum (§ 10 MDStV): Herausgeber: Otto-von-Guericke-Universität Magdeburg Fakultät für Informatik Der

Apel, Sven

176

Fakultt fr Informatik Otto-von-Guericke-Universitt Magdeburg  

E-print Network

Fakultät für Informatik Otto-von-Guericke-Universität Magdeburg Nr.: M. Kuhlemann, C. Kästner, S-Oriented Programming #12;Fakultät für Informatik Otto-von-Guericke-Universität Magdeburg Nr.: FIN-006-2011 An Algebra Datenbanken Technical report (Internet) Elektronische Zeitschriftenreihe der Fakultät für Informatik der Otto-von-Guericke

Apel, Sven

177

Otto-von-Guericke-Universitt Magdeburg Fakultt fr Informatik  

E-print Network

Otto-von-Guericke-Universität Magdeburg Fakultät für Informatik Institut für Verteilte Systeme-Netzwerken Diplomarbeit, Otto-von-Guericke-Universität Magdeburg, 2008. #12;Danksagung Ich möchte diese Gelegenheit nutzen unterstützt haben. III #12;IV #12;Kurzfassung Diese Arbeit beschäftigt sich mit der Entwicklung von Verfahren

178

Fakultt fr Informatik Otto-von-Guericke-Universitt Magdeburg  

E-print Network

Fakultät für Informatik Otto-von-Guericke-Universität Magdeburg Nr.: FIN-013-2009 Combining Static Arbeitsgruppe Datenbanken #12;Impressum (§ 5 TMG): Herausgeber: Otto-von-Guericke-Universität Magdeburg Fakultät für Informatik Der Dekan Verantwortlich für diese Ausgabe: Otto-von-Guericke-Universität Magdeburg

Apel, Sven

179

Fakultt fr Informatik Otto-von-Guericke-Universitt Magdeburg  

E-print Network

Fakultät für Informatik Otto-von-Guericke-Universität Magdeburg Nr.: FIN-04-2011 Flexible Dynamic Otto-von-Guericke-Universität Magdeburg Nr.: 3 FIN-04-2011 Flexible Dynamic Software Updates of Java der Fakultät für Informatik der Otto-von-Guericke-Universität Magdeburg ISSN 1869-5078 #12;Impressum

Apel, Sven

180

Fakultt fr Informatik Otto-von-Guericke-Universitt Magdeburg  

E-print Network

Fakultät für Informatik Otto-von-Guericke-Universität Magdeburg Nr.: FIN-02-2008 Language, Martin Kuhlemann, Don Batory Arbeitsgruppe Datenbanken #12;Impressum (§ 10 MDStV): Herausgeber: Otto-von-Guericke-Universität Magdeburg Fakultät für Informatik Der Dekan Verantwortlich für diese Ausgabe: Otto-von-Guericke

Kaestner, Christian

181

OTTO-VON-GUERICKE-UNIVERSITT MAGDEBURG Fakultt fr Mathematik  

E-print Network

OTTO-VON-GUERICKE-UNIVERSIT�T MAGDEBURG Fakultät für Mathematik PSF 4120 39016 Magdeburg Wettbewerb 2008" veranstaltet die Fakultät für Mathematik der Otto-von-Guericke Universität Magdeburg einen Format 0,80 m x 1 m und bei Plastiken die Höhe von 1 m nicht überschreiten. Die besten und originellsten

Henk, Martin

182

Fakultt fr Informatik Otto-von-Guericke-Universitt Magdeburg  

E-print Network

Fakultät für Informatik Otto-von-Guericke-Universität Magdeburg Nr.: FIN-11-2008 Colloquium) Arbeitsgruppe Automaten und Formale Sprachen #12;Impressum (§ 10 MDStV): Herausgeber: Otto-von-Guericke-Universität Magdeburg Fakultät für Informatik Der Dekan Verantwortlich für diese Ausgabe: Otto-von-Guericke

183

Otto-von-Guericke-Universitt Magdeburg Fakultt fr Informatik  

E-print Network

Otto-von-Guericke-Universität Magdeburg Fakultät für Informatik Institut für Technische und.-Ing. Christian Kästner, Dipl.-Wirtsch.-Inf. Thomas Leich Otto-von-Guericke-Universität Magdeburg Fakultät für-Präprozessor- konfigurierten Anwendungen Diplomarbeit, Otto-von-Guericke-Universität Magdeburg, 2010. #12;Danksagung An dieser

Kaestner, Christian

184

Effizienter Betrieb von Xenon-Excimer-Entladungen bei hoher Leistungsdichte.  

E-print Network

??In der vorliegenden Arbeit wurde der Betrieb dielektrisch behinderte Entladung bei hoher Leistungsdichte und hoher Effizienz untersucht. Hierbei wurde eine Abhängigkeit der homogenen Entladung von… (more)

Paravia, Mark

2010-01-01

185

Current therapy in children and adolescents with von Willebrand disease  

PubMed Central

Abstract The article represents a review of recent data about the therapy of von Willebrand disease in children and adolescents (hereditary as well as acquired forms of the disease). The treatment of bleeding events in these patients, the indications in different subtypes, and the future lines of research are mentioned. Abbreviations: Ag VWF = von Willebrand antigen, VWD = von Willebrand disease, DDAVP = arginine-vasopressin, EACA = epsilon aminocaproic acid, VWF = von Willebrand factor, VIIc F = the VIIth factor of coagulation, VIIIc F = the VIIIth factor of coagulation, IgG = immunoglobulin G, T/2 = half-time, WVF – Rco = the ristocetin cofactor. PMID:25408737

Buga-Corbu, I; Arion, C

2014-01-01

186

Molekulare Mechanismen zur Absorption von wasserlöslichen Vitaminen und deren Einflussfaktoren.  

E-print Network

??Die intestinale Absorption der wasserlöslichen Vitamine, Biotin, Pantothensäure, Niacin, Thiamin, Pyridoxin, Riboflavin, Ascorbinsäure und Folsäure wird von substratspezifischen Transportmechanismen vermittelt. Es kann gesagt werden, dass… (more)

Stieger, Daniela

2012-01-01

187

Berufliche Sozialisationserfahrungen von Menschen mit Down-Syndrom.  

E-print Network

??Die vorliegende Diplomarbeit hat zum Ziel, mit Hilfe eines qualitativ empirischen Forschungsansatzes einen Einblick in die gesellschaftliche Teilhabe einer Gruppe von insgesamt sechs Personen mit… (more)

Russold, Bettina

2009-01-01

188

Die europäische Öffentlichkeit im Lichte des Vertrags von Lissabon.  

E-print Network

??Insbesondere seit der Politisierung der Europäischen Union durch den Vertrag von Maastricht wird die Debatte um ein existentes Öffentlichkeitsdefizit der Europäischen Union offen geführt (Gerhards… (more)

Stern, Thomas

2011-01-01

189

Phänotypische Plastizität und Fitness annueller Ackerwildkrautpopulationen von Standorten unterschiedlicher Nutzungsgeschichte.  

E-print Network

??Die Auswirkungen unterschiedlicher ackerbaulicher Nutzungsgeschichte auf die Fitness von Arabidopsis thaliana- und Viola arvensis-Populationen wurden untersucht. Die dabei verwendeten Versuchspflanzen wurden aus dem bis zu… (more)

Schubert, Patrick

2003-01-01

190

Morphometrische Vermessungen von MRT-Aufnahmen des Kiefergelenks.  

E-print Network

??Ziel: Die bildgebende Diagnostik des Temporomandibulargelenkes (TMJ) mit der MRT ist bereits seit einigen Jahren eine etablierte Methode zur Diagnostik von Funktionsstörungen und degenerativen Veränderungen… (more)

Griethe, Mathias

2005-01-01

191

Dr. von Braun and Army Ballistics Missile Agency (ABMA) Group  

NASA Technical Reports Server (NTRS)

This photograph of Dr. von Braun, shown here to the left of General Bruce Medaris, was taken in the fall of 1959, immediately prior to Medaris' retirement from the Army. At the time, von Braun and his associates worked for the Army Ballistics Missile Agency in Huntsville, Alabama. Those in the photograph have been identified as Ernst Stuhlinger, Frederick von Saurma, Fritz Mueller, Hermarn Weidner, E.W. Neubert (partially hidden), W.A. Mrazek, Karl Heimburg, Arthur Rudolph, Otto Hoberg, von Braun, Oswald Lange, Medaris, Helmut Hoelzer, Hans Maus, E.D. Geissler, Hans Heuter, and George Constan.

1959-01-01

192

Quantitative Autonomic Testing  

PubMed Central

Disorders associated with dysfunction of autonomic nervous system are quite common yet frequently unrecognized. Quantitative autonomic testing can be invaluable tool for evaluation of these disorders, both in clinic and research. There are number of autonomic tests, however, only few were validated clinically or are quantitative. Here, fully quantitative and clinically validated protocol for testing of autonomic functions is presented. As a bare minimum the clinical autonomic laboratory should have a tilt table, ECG monitor, continuous noninvasive blood pressure monitor, respiratory monitor and a mean for evaluation of sudomotor domain. The software for recording and evaluation of autonomic tests is critical for correct evaluation of data. The presented protocol evaluates 3 major autonomic domains: cardiovagal, adrenergic and sudomotor. The tests include deep breathing, Valsalva maneuver, head-up tilt, and quantitative sudomotor axon test (QSART). The severity and distribution of dysautonomia is quantitated using Composite Autonomic Severity Scores (CASS). Detailed protocol is provided highlighting essential aspects of testing with emphasis on proper data acquisition, obtaining the relevant parameters and unbiased evaluation of autonomic signals. The normative data and CASS algorithm for interpretation of results are provided as well. PMID:21788940

Novak, Peter

2011-01-01

193

Assay of the von Willebrand factor (VWF) propeptide to identify patients with type 1 von Willebrand disease with decreased VWF survival  

PubMed Central

Type 1 von Willebrand disease (VWD) is characterized by a partial quantitative deficiency of von Willebrand factor (VWF). Few VWF gene mutations have been identified that cause dominant type 1 VWD. The decreased survival of VWF in plasma has recently been identified as a novel mechanism for type 1 VWD. We report 4 families with moderately severe type 1 VWD characterized by low plasma VWF:Ag and FVIII:C levels, proportionately low VWF:RCo, and dominant inheritance. A decreased survival of VWF in affected individuals was identified with VWF half-lives of 1 to 3 hours, whereas the half-life of VWF propeptide (VWFpp) was normal. DNA sequencing revealed a single (heterozygous) VWF mutation in affected individuals, S2179F in 2 families, and W1144G in 2 families, neither of which has been previously reported. We show that the ratio of steady-state plasma VWFpp to VWF:Ag can be used to identify patients with a shortened VWF half-life. An increased ratio distinguished affected from unaffected individuals in all families. A significantly increased VWFpp/VWF:Ag ratio together with reduced VWF:Ag may indicate the presence of a true genetic defect and decreased VWF survival phenotype. This phenotype may require an altered clinical therapeutic approach, and we propose to refer to this phenotype as type-1C VWD. PMID:16835381

Haberichter, Sandra L.; Balistreri, Michael; Christopherson, Pamela; Morateck, Patricia; Gavazova, Stefana; Bellissimo, Daniel B.; Manco-Johnson, Marilyn J.; Gill, Joan Cox; Montgomery, Robert R.

2006-01-01

194

Bildung, Phasentransfer und Toxizität halogenierter Desinfektionsnebenprodukte im Aufbereitungszyklus von Schwimmbeckenwasser - Schwerpunkt stickstoffhaltige Verbindungen.  

E-print Network

??In dieser Dissertation wurden Bildungsbedingungen von stickstoffhaltigen Desinfektionsnebenprodukten (DNP) im Schwimmbeckenwasser und deren Verteilung in die Luft von Hallenschwimmbädern untersucht. Die Stoffklasse der Chloramine und… (more)

Schmalz, Christina

2012-01-01

195

Nachweis von Erdnuss- und Sesamallergenen mittels PCR und Real-time PCR.  

E-print Network

??Aktuelle Studien berichten, dass die Prävalenz von Lebensmittelallergien in industrialisierten Ländern steigt. Da die Aufnahme von Erdnüssen und Sesam bei sensibilisierten Personen oft schwere allergische… (more)

Rilling, Kristina

2010-01-01

196

In-vivo Untersuchungen zur Modulation der Pharmakokinetik von Capecitabin durch den monoklonalen Antikörper Cetuximab.  

E-print Network

??Im Rahmen dieser Diplomarbeit wurden die Pharmakokinetik und die metabolische Aktivierung von CCB und seiner Metabolite, unter dem Einfluss von Cetuximab, einem monoklonalen Antikörper, untersucht.… (more)

Kitzmüller, Marie Kathrin

2014-01-01

197

Quantitative glycomics strategies.  

PubMed

The correlations between protein glycosylation and many biological processes and diseases are increasing the demand for quantitative glycomics strategies enabling sensitive monitoring of changes in the abundance and structure of glycans. This is currently attained through multiple strategies employing several analytical techniques such as capillary electrophoresis, liquid chromatography, and mass spectrometry. The detection and quantification of glycans often involve labeling with ionic and/or hydrophobic reagents. This step is needed in order to enhance detection in spectroscopic and mass spectrometric measurements. Recently, labeling with stable isotopic reagents has also been presented as a very viable strategy enabling relative quantitation. The different strategies available for reliable and sensitive quantitative glycomics are herein described and discussed. PMID:23325767

Mechref, Yehia; Hu, Yunli; Desantos-Garcia, Janie L; Hussein, Ahmed; Tang, Haixu

2013-04-01

198

Quantitative phase spectroscopy  

PubMed Central

Quantitative phase spectroscopy is presented as a novel method of measuring the wavelength-dependent refractive index of microscopic volumes. Light from a broadband source is filtered to an ~5 nm bandwidth and rapidly tuned across the visible spectrum in 1 nm increments by an acousto-optic tunable filter (AOTF). Quantitative phase images of semitransparent samples are recovered at each wavelength using off-axis interferometry and are processed to recover relative and absolute dispersion measurements. We demonstrate the utility of this approach by (i) spectrally averaging phase images to reduce coherent noise, (ii) measuring absorptive and dispersive features in microspheres, and (iii) quantifying bulk hemoglobin concentrations by absolute refractive index measurements. Considerations of using low coherence illumination and the extension of spectral techniques in quantitative phase measurements are discussed. PMID:22567588

Rinehart, Matthew; Zhu, Yizheng; Wax, Adam

2012-01-01

199

Critical Quantitative Inquiry in Context  

ERIC Educational Resources Information Center

This chapter briefly traces the development of the concept of critical quantitative inquiry, provides an expanded conceptualization of the tasks of critical quantitative research, offers theoretical explanation and justification for critical research using quantitative methods, and previews the work of quantitative criticalists presented in this…

Stage, Frances K.; Wells, Ryan S.

2014-01-01

200

Quantitative Population Ecology  

NSDL National Science Digital Library

Dr. Alexei Sharov of the Department of Entomology at Virginia Tech has put together this excellent teaching resource on quantitative population ecology. The online resource contains thirteen lecture handouts and eight labs, targeting beginning graduate or advanced undergraduate students; the course requires a basic understanding of statistics and ecology. Each chapter contains a concise introduction to the topic plus several more detailed subsections. The chapters are well organized and easy to navigate, and include useful color illustrations and mathematical equations. For educators and students of quantitative population ecology alike, this exceptional resource is hard to beat.

201

3. Chemismus und Pollenreprsentanz der Lindentracht. W von der Ohe*, HW von der Ohe' H  

E-print Network

gesammelt. Die Analysen umfaß- ten: Gewicht der Honigblasen; Saccharid- spektren (HPLC) von Nektar should be obtained via new methods. Genetically uniform bee colonies without food reserves were exposed spectra (HPLC) of nectar, sac content and honey; the quantity of pollen grains in sac content and honey

Boyer, Edmond

202

Untersuchungen Über die Eignung von Peptonen zur PrÜfung der Schwefelwasserstoffbildung von Brucellen  

Microsoft Academic Search

Zusammenfassung Unter den auf ihre Eignung zum Nachweis der Schwefelwasserstoffbildung von Brucellen geprÜften Nährmedien verschiedener Zusammensetzung erwies sich eine Fleischextraktbouillon am geeignetsten, die das aus Fleisch durch tryptische Verdauung hergestellte Pepton Merck enthielt und deren Traubenzuckergehalt 0,1% nicht Übersteigen durfte. Ein auf der Grundlage dieses Nährmediums hergestellter Agarnährboden war ebenfalls brauchbar. Im Rahmen der Typenbestimmung der Brucellen stellt die Fähigkeit,

Wilhelm Wundt

1958-01-01

203

Quantitative criteria for insomnia  

Microsoft Academic Search

Formal diagnostic systems (DSM-IV, ICSD, and ICD-10) do not provide adequate quantitative criteria to diagnose insomnia. This may not present a serious problem in clinical settings where extensive interviews determine the need for clinical management. However, lack of standard criteria introduce disruptive variability into the insomnia research domain. The present study reviewed two decades of psychology clinical trials for insomnia

K. L. Lichstein; H. H. Durrence; D. J. Taylor; A. J. Bush; B. W. Riedel

2003-01-01

204

Neurofibromatosis of von Recklinghausen: A Quantitative Study of the Epidermal Keratinocyte and Melanocyte Populations  

Microsoft Academic Search

The numerical keratinocyte to melanocyte relation was studied in café au lait spots and adjacent normally pigmented skin of 9 patients with classical neurofibromatosis. Compared to normal skin of healthy individuals, the keratinocyte:melanocyte ratio distributions obtained in neurofibromatosis indicated a shift to lower values in the biopsies of café au lait spots and normally pigmented skin. These results are evidence

Edgar Frenk; Alfio Marazzi

1984-01-01

205

B. Von Frey Test C. Cold Allodynia INTRODUCTION  

E-print Network

B. Von Frey Test C. Cold Allodynia A INTRODUCTION NAc in the transition to chronic pain 1 to 5) · Two groups of animals: -Short Term Group (SNI n=11 & Sham n=9) sacrificed at 5 days post day. ·Mechanical sensitivity (Von Frey) and cold allodynia tests were assessed twice before surgery

Apkarian, A. Vania

206

Justus von Liebig Preis voor Johan van Arendonk  

Microsoft Academic Search

In mei jl. is de Justus von Liebig Preis 2006 toegekend aan prof. dr. Johan A.M. van Arendonk, hoogleraar Veehouderij en Genetica bij de Animal Sciences Group van Wageningen Universiteit. De Justus von Liebig Preis is een prestigieuze onderscheiding, die sinds 1949 jaarlijks wordt toegekend aan een wetenschapper die een belangrijke bijdrage heeft geleverd aan de ontwikkeling van de Europese

Arendonk van J. A. M

2006-01-01

207

A genetic register for von Hippel-Lindau disease  

Microsoft Academic Search

A genetic register for von Hippel-Lindau disease was set up in the north west of England in 1990. Population statistics, clinical features, age at onset, and survival of 83 people affected with von Hippel-Lindau (VHL) disease were studied. In addition, the effectiveness of the screening programme used and the occurrence of central nervous system haemangioblastomas in the general population were

I R Maddock; A Moran; E R Maher; M D Teare; A Norman; S J Payne; R Whitehouse; C Dodd; M Lavin; N Hartley; M Super; D G Evans

1996-01-01

208

Interessenvertretung der Gasthrenden an der Carl von Ossietzky Universitt Oldenburg  

E-print Network

Interessenvertretung der Gasthörenden an der Carl von Ossietzky Universität Oldenburg Rede zur Veranstaltungen und lobten das problemlose Miteinander zwischen Jung und Alt. Dafür auch ihnen, liebe des Bachelor- und #12;Interessenvertretung der Gasthörenden an der Carl von Ossietzky Universität

209

VON NEUMANN E A TEORIA DE ALGEBRAS DE OPERADORES  

E-print Network

VON NEUMANN E A TEORIA DE ´ALGEBRAS DE OPERADORES Ruy Exel Respondendo a um question´ario elaborado pela "National Academy of Sciences" dos EUA, von Neumann considerou seu trabalho em teoria de para diversas teorias emergentes na ´epoca, dentre as quais se destaca a mec^anica qu^antica. No que

Exel, Ruy

210

VON NEUMANN E A TEORIA DE ALGEBRAS DE OPERADORES  

E-print Network

VON NEUMANN E A TEORIA DE â?? ALGEBRAS DE OPERADORES Ruy Exel Respondendo a um questionâ??ario elaborado pela ``National Academy of Sciences'' dos EUA, von Neumann considerou seu trabalho em teoria de para diversas teorias emergentes na â??epoca, dentre as quais se destaca a mecâ??anica quâ??antica. No que

Exel, Ruy

211

Von Neumann e a Teoria Algebra de Operadores  

E-print Network

Von Neumann e a Teoria de ' Algebra de Operadores RUY EXEL R espondendo a um question' ario elaborado pela National Academy of Sciences dos EUA, von Neumann considerou seu trabalho em teoria de precisa para diversas teorias emergentes na 'epoca, dentre as quais se destaca a mecâ??anica qu

Kohayakawa, Yoshiharu

212

Über die Nahrung von Limax (Heynemannia) maximus L  

Microsoft Academic Search

Zusammenfassung  Aus den mikroskopischen Untersuchungen der Exkremente im Freiland gefangener Tiere, vor allem aber aus biologischen Versuchen, geht hervor, daßLimax (Heynemannia) maximus L. chlorophyllhaltige Pflanzen wohl nur in der Not verzehrt und sich in der Hauptsache von Wurzeln, Knollen und Früchten (in freier Wildbahn von Pilzen, Früchten und Blüten) ernährt.

Ewald Frömming

1952-01-01

213

Kant and Maria von Herbert: Reticence vs. Deception  

E-print Network

Kant and Maria von Herbert: Reticence vs. Deception JAMES EDWIN MAHON In `Duty and Desolation'1 Rae Langton examines an exchange of letters in the 1790s between Kant and Maria von Herbert, a young Austrian noblewoman who was devoted to Kant's critical philoso- phy, and argues for a number of claims. She argues

Marsh, David

214

Vergleich der Verträglichkeit von Prothionamid und Ethionamid im Doppelblindversuch  

Microsoft Academic Search

Zusammenfassung In einem Doppelblindversuch an 90 Patienten wurde die Verträglichkeit von PTH und ETH miteinander verglichen. Die Auswertung der Ergebnisse nach verschiedenen Gesichtspunkten ergab in jedem Falle eindeutig oder signifikant eine bessere Verträglichkeit von PTH im Vergleich zu ETH. PTH ist als eines der führenden antituberkulösen Mittel anzusehen.

I. Schütz; K. L. Radenbach; W. Siegler; K. Bartmann

1969-01-01

215

Seite 1 von 6 ARBEITEN IN FORSCHUNG UND LEHRE  

E-print Network

-Projekt (7th Framework) #12;Seite 2 von 6 2.5 IT-Service-Management (ITSM-BMW) Inhalt: Entwicklung einer Service-Design-Methode, durch die die Dienste systematisch erfasst und beschrieben werden, die bei BMW von der Zentralen IT-Abteilung den Geschäftspartnern innerhalb und au�erhalb des BMW

Abeck, Sebastian

216

Management von Kultur-und Non-Profit-Organisationen  

E-print Network

Management von Kultur- und Non-Profit-Organisationen Autor Prof. Dr. Manfred Bruhn Marketing für Non-Profit-Organisationen Studienbrief MKN0410 Fernstudium postgradual Leseprobe #12;Das Werk ist Literaturverzeichnis IX Vorwort XXV 1 Grundlagen des Non-Profit-Marketings 1 1.1 Grundlagen und Besonderheiten von Non-Profit

Pinnau, René

217

Von den Anfngen der Astronomie zur modernen Astrophysik  

E-print Network

Hamburger Sternwarte in Bergedorf ist ein kulturhistorisches Ensem- ble von internationalem Rang bzgl. der Vorträgen zur historischen Ent- wicklung. Die Hamburger Sternwarte ist jedoch auch eine moderne Förderverein Hamburger Sternwarte e. V., von der Hamburger Sternwarte und vom Zentrum für Geschichte der

Hamburg,.Universität

218

Seite 1 von 3 Max-Planck-Forschungspreis  

E-print Network

Seite 1 von 3 Max-Planck-Forschungspreis Hinweise für eine vollständige Nominierung Erforderliche Sie dabei besonders auf folgende Punkte: Die Alexander von Humboldt-Stiftung und die Max-Planck-Gesellschaft verleihen gemeinsam den vom Bundesministerium für Bildung und Forschung gestifteten Max-Planck

219

Max-Planck-Institut zur Erforschung von Gemeinschaftsgtern  

E-print Network

Max-Planck-Institut zur Erforschung von Gemeinschaftsgütern Zum 1. April 2014 suchen wir mehrere einzuarbeiten? Dann freuen wir uns über Ihre Bewerbung! Das Max-Planck-Institut zur Erforschung von Qualifikation ausdrücklich auf sich zu bewerben. Die Max-Planck-Gesellschaft ist bemüht, mehr schwerbehinderte

Rauhut, Holger

220

Endothelial cell synthesis of von Willebrand antigen II, von Willebrand factor, and von Willebrand factor/von Willebrand antigen II complex.  

PubMed Central

von Willebrand antigen II (vW AgII) and von Willebrand factor (vWf) are immunochemically distinct proteins that are deficient in the plasma and platelets of patients with severe von Willebrand's disease. Normal human umbilical vein endothelial cells were cultured in the presence of [35S]methionine. Crossed immunoelectrophoresis of endothelial cell supernates and detergent-solubilized endothelial cells demonstrated specific incorporation of the [35S]methionine into vW AgII. Furthermore, when endothelial cells were lysed in the presence of proteolytic inhibitors, a second, less anodal peak was identified on crossed immunoelectrophoresis. This peak represented a complex of vW AgII and vWf and demonstrated a reaction of complete identity with the vW AgII immunoprecipitate. When plasma, serum, or platelets were evaluated by crossed immunoelectrophoresis, this "complex" peak was not present. When antibodies to vWf, fibronectin, or fibrinogen were present in the first dimension of crossed immunoelectrophoresis, only the antibodies to vWf removed the complex. Radioiodinated polyclonal and monoclonal antibodies to vWf also localized vWf to this complex. Under reducing conditions, sodium dodecyl sulfate-polyacrylamide gel electrophoresis of [35S]methionine-labeled immunoprecipitates indicated that the molecular weight of vW AgII is 98,000 and that vWf was present as two species of 220,000 and 260,000 mol wt, respectively. Immunofluorescent microscopy of endothelial cells demonstrated colocalization of vW AgII and vWf in endothelial cells with intense immunostaining of the same subcellular granules. Images PMID:3872883

McCarroll, D R; Levin, E G; Montgomery, R R

1985-01-01

221

Wernher von Braun and Saturn IB on Launch Pad  

NASA Technical Reports Server (NTRS)

Dr. Wernher von Braun stands in front of a Saturn IB launch vehicle at Kennedy Space Flight Center. Dr. von Braun led a team of German rocket scientists, called the Rocket Team, to the United States, first to Fort Bliss/White Sands, later being transferred to the Army Ballistic Missile Agency at Redstone Arsenal in Huntsville, Alabama. They were further transferred to the newly established NASA/Marshall Space Flight Center (MSFC) in Huntsville, Alabama in 1960, and Dr. von Braun became the first Center Director. Under von Braun's direction, MSFC developed the Mercury-Redstone, which put the first American in space; and later the Saturn rockets, Saturn I, Saturn IB, and Saturn V. The Saturn V launch vehicle put the first human on the surface of the Moon, and a modified Saturn V vehicle placed Skylab, the first United States' experimental space station, into Earth orbit. Dr. von Braun was MSFC Director from July 1960 to February 1970.

1968-01-01

222

Ms. Christa von Hillebrandt-Andrade Christa von Hillebrandt-Andrade is the Caribbean Tsunami Center Director of the  

E-print Network

Ms. Christa von Hillebrandt-Andrade Christa von Hillebrandt-Andrade is the Caribbean Tsunami Center and tsunami monitoring, warning and education services becoming a regional leader in this field. She has been. She is an internationally recognized expert in seismology and tsunamis. She has participated

Gilbes, Fernando

223

Approximate von Neumann entropy for directed graphs  

NASA Astrophysics Data System (ADS)

In this paper, we develop an entropy measure for assessing the structural complexity of directed graphs. Although there are many existing alternative measures for quantifying the structural properties of undirected graphs, there are relatively few corresponding measures for directed graphs. To fill this gap in the literature, we explore an alternative technique that is applicable to directed graphs. We commence by using Chung's generalization of the Laplacian of a directed graph to extend the computation of von Neumann entropy from undirected to directed graphs. We provide a simplified form of the entropy which can be expressed in terms of simple node in-degree and out-degree statistics. Moreover, we find approximate forms of the von Neumann entropy that apply to both weakly and strongly directed graphs, and that can be used to characterize network structure. We illustrate the usefulness of these simplified entropy forms defined in this paper on both artificial and real-world data sets, including structures from protein databases and high energy physics theory citation networks.

Ye, Cheng; Wilson, Richard C.; Comin, César H.; Costa, Luciano da F.; Hancock, Edwin R.

2014-05-01

224

Superfluid high REynolds von Kármán experiment.  

PubMed

The Superfluid High REynolds von Kármán experiment facility exploits the capacities of a high cooling power refrigerator (400 W at 1.8 K) for a large dimension von Kármán flow (inner diameter 0.78 m), which can work with gaseous or subcooled liquid (He-I or He-II) from room temperature down to 1.6 K. The flow is produced between two counter-rotating or co-rotating disks. The large size of the experiment allows exploration of ultra high Reynolds numbers based on Taylor microscale and rms velocity [S. B. Pope, Turbulent Flows (Cambridge University Press, 2000)] (R? > 10000) or resolution of the dissipative scale for lower Re. This article presents the design and first performance of this apparatus. Measurements carried out in the first runs of the facility address the global flow behavior: calorimetric measurement of the dissipation, torque and velocity measurements on the two turbines. Moreover first local measurements (micro-Pitot, hot wire,…) have been installed and are presented. PMID:25362417

Rousset, B; Bonnay, P; Diribarne, P; Girard, A; Poncet, J M; Herbert, E; Salort, J; Baudet, C; Castaing, B; Chevillard, L; Daviaud, F; Dubrulle, B; Gagne, Y; Gibert, M; Hébral, B; Lehner, Th; Roche, P-E; Saint-Michel, B; Bon Mardion, M

2014-10-01

225

Energy & Climate: Getting Quantitative  

NASA Astrophysics Data System (ADS)

A noted environmentalist claims that buying an SUV instead of a regular car is energetically equivalent to leaving your refrigerator door open for seven years. A fossil-fuel apologist argues that solar energy is a pie-in-the-sky dream promulgated by na"ive environmentalists, because there's nowhere near enough solar energy to meet humankind's energy demand. A group advocating shutdown of the Vermont Yankee nuclear plant claims that 70% of its electrical energy is lost in transmission lines. Around the world, thousands agitate for climate action, under the numerical banner ``350.'' Neither the environmentalist, the fossil-fuel apologist, the antinuclear activists, nor most of those marching under the ``350'' banner can back up their assertions with quantitative arguments. Yet questions about energy and its environmental impacts almost always require quantitative answers. Physics can help! This poster gives some cogent examples, based on the newly published 2^nd edition of the author's textbook Energy, Environment, and Climate.

Wolfson, Richard

2011-11-01

226

Explanatory chapter: quantitative PCR.  

PubMed

Quantitative PCR (qPCR), also called real-time PCR or quantitative real-time PCR, is a PCR-based technique that couples amplification of a target DNA sequence with quantification of the concentration of that DNA species in the reaction. This method enables calculation of the starting template concentration and is therefore a frequently used analytical tool in evaluating DNA copy number, viral load, SNP detection, and allelic discrimination. When preceded by reverse-transcription PCR, qPCR is a powerful tool to measure mRNA expression and is the gold standard for microarray gene expression data confirmation. Given the broad applications of qPCR and the many technical variations that have been developed, a brief survey of qPCR, including technical background, available chemistries, and data analysis techniques will provide a framework for both experimental design and evaluation. PMID:24011054

Dymond, Jessica S

2013-01-01

227

Biochemical specificity of von Economo neurons in hominoids  

PubMed Central

Von Economo neurons (VENs) are defined by their thin, elongated cell body and long dendrites projecting from apical and basal ends. These distinctive neurons are mostly present in anterior cingulate (ACC) and fronto-insular (FI) cortex, with particularly high densities in cetaceans, elephants, and hominoid primates (i.e., humans and apes). This distribution suggests that VENs contribute to specializations of neural circuits in species that share both large brain size and complex social cognition, possibly representing an adaptation to rapidly relay socially-relevant information over long distances across the brain. Recent evidence indicates that unique patterns of protein expression may also characterize VENs, particularly involving molecules that are known to regulate gut and immune function. In this study, we used quantitative stereologic methods to examine the expression of three such proteins that are localized in VENs – activating-transcription factor 3 (ATF3), interleukin 4 receptor (IL4R?) and neuromedin B (NMB). We quantified immunoreactivity against these proteins in different morphological classes of ACC layer V neurons of hominoids. Among the different neuron types analyzed (pyramidal, VEN, fork, enveloping, and other multipolar), VENs showed the greatest percentage that displayed immunostaining. Additionally, a higher proportion of VENs in humans were immunoreactive to ATF3, IL4R?, and NMB than in other apes. No other ACC layer V neuron type displayed a significant species difference in the percentage of immunoreactive neurons. These findings demonstrate that phylogenetic variation exists in the protein expression profile of VENs, suggesting that humans might have evolved biochemical specializations for enhanced interoceptive sensitivity. PMID:21140465

Stimpson, Cheryl D.; Tetreault, Nicole A.; Allman, John M.; Jacobs, Bob; Butti, Camilla; Hof, Patrick R.; Sherwood, Chet C.

2010-01-01

228

Primary enzyme quantitation  

DOEpatents

The disclosure relates to the quantitation of a primary enzyme concentration by utilizing a substrate for the primary enzyme labeled with a second enzyme which is an indicator enzyme. Enzyme catalysis of the substrate occurs and results in release of the indicator enzyme in an amount directly proportional to the amount of primary enzyme present. By quantifying the free indicator enzyme one determines the amount of primary enzyme present.

Saunders, G.C.

1982-03-04

229

Quantitative nondestructive evaluation  

Microsoft Academic Search

Quantitative Nondestructive Evaluation (QNDE) provides techniques to assess deterioration of a material or a structure, and to detect and characterize discrete flaws. It plays, therefore, an important role in the prevention of failure. QNDE techniques are used in processing, manufacturing and for in-service inspection. QNDE is particularly important for the in-service inspection of high-cost and critical load-bearing structures whose failure

J. D Achenbach

2000-01-01

230

Computational vaccinology: quantitative approaches.  

PubMed

The immune system is hierarchical and has many levels, exhibiting much emergent behaviour. However, at its heart are molecular recognition events that are indistinguishable from other types of biomacromolecular interaction. These can be addressed well by quantitative experimental and theoretical biophysical techniques, and particularly by methods from drug design. We review here our approach to computational immunovaccinology. In particular, we describe the JenPep database and two new techniques for T cell epitope prediction. One is based on quantitative structure-activity relationships (a 3D-QSAR method based on CoMSIA and another 2D method based on the Free-Wilson approach) and the other on atomistic molecular dynamic simulations using high performance computing. JenPep (http://www.jenner.ar.uk/ JenPep) is a relational database system supporting quantitative data on peptide binding to major histocompatibility complexes, TAP transporters, TCR-pMHC complexes, and an annotated list of B cell and T cell epitopes. Our 2D-QSAR method factors the contribution to peptide binding from individual amino acids as well as 1-2 and 1-3 residue interactions. In the 3D-QSAR approach, the influence of five physicochemical properties (volume, electrostatic potential, hydrophobicity, hydrogen-bond donor and acceptor abilities) on peptide affinity were considered. Both methods are exemplified through their application to the well-studied problem of peptide binding to the human class I MHC molecule HLA-A*0201. PMID:14712934

Flower, Darren R; McSparron, Helen; Blythe, Martin J; Zygouri, Christianna; Taylor, Debra; Guan, Pingping; Wan, Shouzhan; Coveney, Peter V; Walshe, Valerie; Borrow, Persephone; Doytchinova, Irini A

2003-01-01

231

Quantitative chemical analysis  

SciTech Connect

Quantitative Chemical Analysis is an excellent text for a classical undergraduate course in quantitative analysis. The greatest strengths of the text are the superb organization and the programmed approach toward the presentation of the material. It is directed at an audience with a minimal background in chemistry (i.e., one year of freshman-level chemistry) and provides introductory material (i.e., basic organic chemistry, stoichiometry, and solution equilibria) in the first chapter for those who need it. The book covers the basic principles of the quantitative treatment of data, including the concepts of accuracy, precision, and basic statistical methods. As in any classical text on this subject, the text is biased toward methods involving solution equilibria. Consequently, the bulk of the discussion centers on gravimetric analysis, pH, complexation, and oxidation-reduction titrations. The principles of electroanalytical measurements are explained clearly, and several chapters on potentiometric and amperometric methods are adequately detailed. Supplementary information concerning the basics of the other instrumental techniques is provided in the last 10 chapters.

Manhan, S.L.

1986-01-01

232

Organisation von Sammlungen LACE Experimente mit LACE Musik als Daten Vorlesung Maschinelles Lernen  

E-print Network

Organisation von Sammlungen LACE Experimente mit LACE Musik als Daten Vorlesung Maschinelles Lernen Dortmund 28.1.2014 1 von 71 #12;Organisation von Sammlungen LACE Experimente mit LACE Musik als Daten Gliederung 1 Organisation von Sammlungen Web 2.0 Clustering verteilter Daten 2 LACE 3 Experimente mit LACE 4

Morik, Katharina

233

Evidence-based recommendations on the treatment of von Willebrand disease in Italy  

PubMed Central

Background von Willebrand disease (VWD) is the most common hereditary bleeding disorder affecting both males and females. It arises from quantitative or qualitative defects of von Willebrand factor (VWF) and causes bleeding of mucous membranes and soft tissues. The aim of treatment is to correct the dual defect of haemostasis caused by the abnormal/reduced VWF and the concomitant deficiency of factor VIII (FVIII). Material and methods This document contains evidence-based recommendations for the management of VWD compiled by AICE (the Italian Association of Haemophilia Centres). All the evidence supporting these recommendations are based on non-randomised comparative studies or case series, because randomised controlled clinical trials or meta-analyses are not available for this disease. Results and conclusions Desmopressin (DDAVP) is the treatment of choice for patients with type 1 VWD with FVIII and VWF levels of 10 U/dL or more, while VWF/FVIII concentrates are indicated for those who are unresponsive or insufficiently responsive to DDAVP (severe type 1, type 2 and 3 VWD). VWF concentrates devoid of FVIII, not yet licensed in Italy, may be considered for short-term prophylaxis in elective surgery or for long-term secondary prophylaxis. PMID:19503633

Mannucci, Pier Mannuccio; Franchini, Massimo; Castaman, Giancarlo; Federici, Augusto B.

2009-01-01

234

Quantitative Shape Analysis Radu Rugina  

E-print Network

Quantitative Shape Analysis Radu Rugina Computer Science Department Cornell University Ithaca, NY 14853 rugina@cs.cornell.edu Abstract. This paper presents a static analysis that computes quantitative structures and is able to extract quantitative information about the height and the balancing

Rugina, Radu

235

Quantitative Languages Krishnendu Chatterjee1  

E-print Network

Quantitative Languages Krishnendu Chatterjee1 , Laurent Doyen2 , and Thomas A. Henzinger2 1 University of California, Santa Cruz 2 EPFL, Lausanne, Switzerland Abstract. Quantitative generalizations with transition weights) to define several natural classes of quantitative languages over finite and infinite

Henzinger, Thomas A.

236

Compositional Quantitative Reasoning # Krishnendu Chatterjee  

E-print Network

Compositional Quantitative Reasoning # Krishnendu Chatterjee UC Berkeley Luca de Alfaro UC Santa can express a wide variety of quantitative system prop­ erties, such as resource consumption, price rules for compositional reasoning have quantitative counterparts in our setting. While our general

Henzinger, Thomas A.

237

Quantitative Methods II Winter 2012  

E-print Network

1 of 3 Quantitative Methods II Winter 2012 Meets: Thursdays 9am ­ 11:50am Professor: Jonathan.northwestern.edu This course is intended to be a continuation of the quantitative methods sequence that began with Quantitative assumptions are violated. We will then discuss various methods researchers use to overcome these obstacles

Bustamante, Fabián E.

238

Schichtübergreifende Früherkennung von Verbindungsausfällen in drahtlosen Mesh-Netzwerken  

NASA Astrophysics Data System (ADS)

Drahtlose Mesh-Netzwerke (WMNs) bilden aufgrund ihrer Selbstorganisation ein flexibles Kommunikationssystem. Bei der Erkennung einzelner Verbindungsausfälle, die bei der Integration mobiler Teilnehmer unvermeidbar sind, ist bei aktuellen Routingprotokollen die Kommunikation jedoch für mehrere Sekunden unterbrochen. In dieser Arbeit wird gezeigt, wie durch Nutzung von Informationen aus der MAC-Schicht ein Ausfall frühzeitig erkannt und dadurch die Anzahl der Paketverluste von mehreren Hundert auf maximal vier reduziert werden kann. Hierdurch wird die Zuverlässigkeit und Verfügbarkeit von WMNs erhöht und ihr Einsatz für Echtzeit-Anwendungen ermöglicht.

Lindhorst, Timo

239

Bleeding time, blood groups and von Willebrand factor.  

PubMed

The bleeding time in healthy volunteers was determined according to both the Ivy and the Simplate II techniques. A significantly longer bleeding time in people with blood group O than in people with non-O blood groups was demonstrated with both techniques. This difference could not be attributed to a difference in sex ratio, platelet count or haematocrit. The mean level of von Willebrand factor in blood group O is lower than in non-O blood groups, but we found no association between the level of von Willebrand factor and the bleeding time, despite the very broad range of von Willebrand factor levels in the subjects examined. PMID:2818940

Caekebeke-Peerlinck, K M; Koster, T; Briët, E

1989-10-01

240

A screening method for the simultaneous determination of putrescine, cadaverine, histamine, spermidine and spermine in fish by means of high pressure liquid chromatography of their 5-dimethylaminonaphthalene-l-sulphonyl derivatives  

Microsoft Academic Search

Zusammenfassung Eine einfache und schnelle Methode für die Extraktion, Derivatisierung und Bestimmung von Putrescin, Cadaverin, Histamin, Spermidin und Spermin als 5-Dimethylaminonaphthalin-1-sulfonyl-Derivate mit Hilfe der Hochdruck-Flüssigchromatographie (HPLC).

Jan Rosier; Carlos Van Peteghem

1988-01-01

241

Seite 1 von 4 Leistungs-und Gebhrenkatalog Zentrale Service-Einheit Transkriptomanalyselabor, Justus-von-Liebig-Weg 11, Raum 1.239a, Tel. 0551-39-22316  

E-print Network

, Justus-von-Liebig-Weg 11, Raum 1.239a, Tel. 0551-39-22316 Stand: Mai 2013 Leistungs- und Gebührenkatalog;Seite 2 von 4 Leistungs- und Gebührenkatalog Zentrale Service-Einheit Transkriptomanalyselabor, Justus-von-Liebig 3 von 4 Leistungs- und Gebührenkatalog Zentrale Service-Einheit Transkriptomanalyselabor, Justus-von-Liebig

Gollisch, Tim

242

Trace formulae in finite von Neumann algebras  

NASA Astrophysics Data System (ADS)

The dissertation is devoted to some aspects of spectral perturbation theory in the context of finite von Neumann algebras. The central results are analogs of the Birman-Schwinger principle and the Birman-Krein formula for the xi-index, a spectral parameter independent counterpart of Krein's spectral shift function. The proofs of the main results are based on diverse properties of the operator logarithm and argument averaged with respect to a normal tracial state that are derived in this work. In addition, formula representations for the xi-index and the xi-function are obtained and the concept of the xi-index is related to that of the spectrum distribution function for some random operators.

Skripka, Anna

243

Of von Willebrand factor and platelets.  

PubMed

Hemostasis and pathological thrombus formation are dynamic processes that require multiple adhesive receptor-ligand interactions, with blood platelets at the heart of such events. Many studies have contributed to shed light on the importance of von Willebrand factor (VWF) interaction with its platelet receptors, glycoprotein (GP) Ib-IX-V and ?IIb?3 integrin, in promoting primary platelet adhesion and aggregation following vessel injury. This review will recapitulate our current knowledge on the subject from the rheological aspect to the spatio-temporal development of thrombus formation. We will also discuss the signaling events generated by VWF/GPIb-IX-V interaction, leading to platelet activation. Additionally, we will review the growing body of evidence gathered from the recent development of pathological mouse models suggesting that VWF binding to GPIb-IX-V is a promising target in arterial and venous pathological thrombosis. Finally, the pathological aspects of VWF and its impact on platelets will be addressed. PMID:25297919

Bryckaert, Marijke; Rosa, Jean-Philippe; Denis, Cécile V; Lenting, Peter J

2015-01-01

244

Quantitative Hyperspectral Reflectance Imaging  

PubMed Central

Hyperspectral imaging is a non-destructive optical analysis technique that can for instance be used to obtain information from cultural heritage objects unavailable with conventional colour or multi-spectral photography. This technique can be used to distinguish and recognize materials, to enhance the visibility of faint or obscured features, to detect signs of degradation and study the effect of environmental conditions on the object. We describe the basic concept, working principles, construction and performance of a laboratory instrument specifically developed for the analysis of historical documents. The instrument measures calibrated spectral reflectance images at 70 wavelengths ranging from 365 to 1100 nm (near-ultraviolet, visible and near-infrared). By using a wavelength tunable narrow-bandwidth light-source, the light energy used to illuminate the measured object is minimal, so that any light-induced degradation can be excluded. Basic analysis of the hyperspectral data includes a qualitative comparison of the spectral images and the extraction of quantitative data such as mean spectral reflectance curves and statistical information from user-defined regions-of-interest. More sophisticated mathematical feature extraction and classification techniques can be used to map areas on the document, where different types of ink had been applied or where one ink shows various degrees of degradation. The developed quantitative hyperspectral imager is currently in use by the Nationaal Archief (National Archives of The Netherlands) to study degradation effects of artificial samples and original documents, exposed in their permanent exhibition area or stored in their deposit rooms.

Klein, Marvin E.; Aalderink, Bernard J.; Padoan, Roberto; de Bruin, Gerrit; Steemers, Ted A.G.

2008-01-01

245

Changes in Thermodynamic Stability of von Willebrand Factor Differentially Affect the Force-Dependent Binding to Platelet GPIb?  

PubMed Central

Abstract In circulation, plasma glycoprotein von Willebrand Factor plays an important role in hemostasis and in pathological thrombosis under hydrodynamic forces. Mutations in the A1 domain of von Willebrand factor cause the hereditary types 2B and 2M von Willebrand disease that either enhance (2B) or inhibit (2M) the interaction of von Willebrand factor with the platelet receptor glycoprotein Ib?. To understand how type 2B and 2M mutations cause clinically opposite phenotypes, we use a combination of protein unfolding thermodynamics and atomic force microscopy to assess the effects of two type 2B mutations (R1306Q and I1309V) and a type 2M mutation (G1324S) on the conformational stability of the A1 domain and the single bond dissociation kinetics of the A1-GPIb? interaction. At physiological temperature, the type 2B mutations destabilize the structure of the A1 domain and shift the A1-GPIb? catch to slip bonding to lower forces. Conversely, the type 2M mutation stabilizes the structure of the A1 domain and shifts the A1-GPIb? catch to slip bonding to higher forces. As a function of increasing A1 domain stability, the bond lifetime at low force decreases and the critical force required for maximal bond lifetime increases. Our results are able to distinguish the clinical phenotypes of these naturally occurring mutations from a thermodynamic and biophysical perspective that provides a quantitative description of the allosteric coupling of A1 conformational stability with the force dependent catch to slip bonding between A1 and GPIb?. PMID:19619477

Auton, Matthew; Sedlák, Erik; Marek, Jozef; Wu, Tao; Zhu, Cheng; Cruz, Miguel A.

2009-01-01

246

33. HISTORIC VIEW OF WERNHER VON BRAUN LOOKS THROUGH THE ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

33. HISTORIC VIEW OF WERNHER VON BRAUN LOOKS THROUGH THE PERISCOPE FROM THE CONTROL ROOM AT TEST STAND NO. 1, PEENEMUENDE. - Marshall Space Flight Center, Redstone Rocket (Missile) Test Stand, Dodd Road, Huntsville, Madison County, AL

247

61. VON BRAUN BLOCKHOUSE (BUILDING 1592): VIEW FROM SOUTHWEST, WITH ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

61. VON BRAUN BLOCKHOUSE (BUILDING 1592): VIEW FROM SOUTHWEST, WITH MILL BUILDING IN BACKGROUND - White Sands Missile Range, V-2 Rocket Facilities, Near Headquarters Area, White Sands, Dona Ana County, NM

248

Heard Island / Von Karman vortices in the Indian Ocean  

NASA Technical Reports Server (NTRS)

Heard Island at 51 degrees south latitude is heavily obscured by clouds. Gravity waves and the beginnings of von Karman vortex swirls appear in the stratus cloud deck downwind of the snow-capped island.

1995-01-01

249

Director von Braun Presents General Medaris With Golf Bag  

NASA Technical Reports Server (NTRS)

Marshall Space Flight Center Director Wernher von Braun presents General J.B. Medaris with a new golf bag. General Medaris, (left) was a Commander of the Army Ballistic Missile Agency (ABMA) in Redstone Arsenal, Alabama during 1955 to 1958.

1959-01-01

250

Types of Minne in Hartmann von Aue's Erec and Iwein  

E-print Network

The Arthurian Legends Erec and Iwein, adapted from material by Chrétien de Troyes by Hartmann von Aue discuss, among other things, the issue of minne, the Middle High German term for "love." In this study, I use close ...

Faber, Jenny Susanna

2012-08-31

251

1. Historic American Buildings Survey David von Riesen, Photographer July ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

1. Historic American Buildings Survey David von Riesen, Photographer July 1965 BARRACKS (West), Left - BARRACKS (East), Right (Combined into New Barn) - Fort Larned, Barracks (West), Larned, Pawnee County, KS

252

1. Historic American Buildings Survey David von Riesen, Photographer July ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

1. Historic American Buildings Survey David von Riesen, Photographer July 1965 BARRACKS (West), Left - BARRACKS (East), Right (Combined into New Barn) - Fort Larned, Barracks (East), Larned, Pawnee County, KS

253

The case of polar lows Hans von Storch13  

E-print Network

(~50 km) dynamical downscaling #12;Set-up of multi-decadal simulation CEP/NCAR reanalysis 1/ CLM 2-1990) and B1,A1B,A2- scenarios for period 2070-2100. Dynamically downscaled using CLM. #12;Zahn and von Storch lows Zahn and von Storch, 2008,PLS: Polar Low Season (Jul-Jun) #12;Downscaling vs. "obs" C=0,72 NCEP

Zahn, Matthias

254

Risiko und Resilienz im Leben von Kindern aus multiethnischen Familien  

Microsoft Academic Search

\\u000a Während des größten Teils meines Berufslebens war es mein Privileg, Kinder aus multiethnischen Familien studieren und mit\\u000a ihnen arbeiten zu können, Kinder, die in verschiedenen Gegenden der USA sowie auf verschiedenen Kontinenten in Entwicklungsländern\\u000a aufwuchsen. Die Einsichten, die ich hieraus gewann, stammen von Großstadtkindern im Osten der USA, Einwandererfamilien und\\u000a Flüchtlingen in Kalifornien sowie den Kindern von Kauai. Und nicht

Emmy E. Werner

255

Teoria de conjuntos segun von Neumann Antonio Montalban  

E-print Network

Teor´ia de conjuntos seg´un von Neumann Antonio Montalb´an 19 de agosto de 2004 Resumen Probamos que, dentro de la teor´ia de von Neumann (V N), hay un modelo natural de la teor´ia de Zermelo de ZF + (elecci´on) + (cardinal inaccesible). 1. Introducci´on En este articulo estudiamos la teor´ia

Montalbán, Antonio

256

Sinnesorgane auf den Antennen von Lithobius forficatus L. (Myriapoda, Chilopoda)  

Microsoft Academic Search

Zusammenfassung  Sensilla trichodea auf den Antennen vonLithobius forficatus L. wurden licht-, raster- und durchstrahlungselektronenmikroskopisch untersucht. Jede Antenne trgt beim ausgewachsenen Tier\\u000a etwa 2000 dieser Organe, von denen jedes ber 18 Sinneszeen und mindestens 3 Hllzellen verfgt. Der Haarschaft ist ungefhr\\u000a 100–150?m lang, sehr elastisch und beweglich aufgehngt. Er verfgt ber eine Pore in der Spitze, bis zu der 17 Dendriten ziehen.

Thomas Keil

1976-01-01

257

Enossale Implantatversorgung von Tumorpatienten mit dem Bone-Lock-System  

Microsoft Academic Search

Zusammenfassung Die implantologische Versorgung von Patienten nach ablativer Tumorchirurgie und Defektrekonstruktion erfolgt meist abseits strenger Maßstäbe der Erfolgsbeurteilung. Deshalb untersuchten wir die von Juni 1990 bis Juni 1996 bei 58 Tumorpatienten enoral gesetzten 210 Implantate regelmäßig nach. Verwendung fand ausschließlich das enossale Bone-Lock-Implantatsystem (Howmedica Leibinger GmbH, Freiburg). Untersucht wurden der Plaqueindex (Silness und Löe), der Sulkusblutungsindex (Löe), die Sondierungstiefe, die

A. Kovács; Johann Wolfgang

1998-01-01

258

Dr. Wernher von Braun and Associates With Saturn 1  

NASA Technical Reports Server (NTRS)

Pictured in front of the Saturn 1 launch vehicle are (L to R): Dr. Rocco Petrone, Director of Launch Operations at Kennedy Space Center; Dr. Werher von Braun, Director of Marshall Space Flight Center; Dr. Oswald Lange, Director of the Saturn Systems Office; Mr. Hans. H. Maus, Director of Fabrication and Assembly Engineering Division; and Dr. Hans Gruene, Deputy Director of Launch Operations Directorate. Maus and Gruene were original members of von Braun's rocket team.

1961-01-01

259

Wernher von Braun with German Officers and Others  

NASA Technical Reports Server (NTRS)

General Erich Fellgiebel, head of the German Army Information Service during World War II, congratulates members of the von Braun rocket team from Peenemunde for their October 3, 1942 A4 flight. Pictured front center is General Erich Fellgiebel. Shaking hands are General Walter Dornberger (left) and General Janssen, commanding officer of Peenemuende with Rudolph Hermarn to their right. Picture left to right in the back row are Wernher von Braun, Captain Stoelzel, Luftwaffe, and Dr. Gerhard Reisig.

1942-01-01

260

Variabilität des Reviergesangs des Buchfinken (Fringilla coelebs) zur Raum-Zeit-Beschreibung von Metapopulationen  

NASA Astrophysics Data System (ADS)

Der Buchfinkengesang wurde in Potsdam in zwei Hauptpopulationen über drei Jahre aufgenommen. Jedes Individuum wurde eindeutig am individuellen Strophentypenrepertoire identifiziert. Ein weiterer Punkt der die individuelle Wiedererkennung bestätigt ist die hohe Standorttreue der adulten Männchen. Die beschriebene Methode eignet sich für die Untersuchung von gesamten Populationen, um den Wandel des Gesangs von Populationen in Raum und Zeit zu beschreiben. Die Haupterkenntnisse der Arbeit sind: - Die Gesamtanzahl der Grundstrophentypen innerhalb einer Population bleibt über Jahre konstant. - Die relative Häufigkeit jedes einzelnen Strophentyps variiert von Jahr zu Jahr und von Population zu Population. - Gesangslernen erfolgt exakt mit einem Korrektheitsgrad von mindestens 96%. - Das Song-Sharing ist innerhalb der Population hoch. Die diskutierten Mechanismen für das Song-Sharing sind: Die Lebenserwartung, das Zugverhalten, das Lernverhalten, die Etabliertheit von Strophentypen, Weibchenpräferenzen und die Reaktionen der territorialen Männchen. - Weiterhin wurde ein Modell zur kulturellen Evolution des Buchfinkengesangs programmiert, um die Rolle der Einflussfaktoren, wie Fehlerquote, Abwanderungsrate und Laufzeit zu ermitteln. Der Wandel des Dialektes erfolgt graduell in Raum und Zeit. Daher sind keine scharfen Dialektgrenzen anzutreffen. Trotz dieser Tatsache markieren die etablierten Strophentypen die Population. 50 % der Juvenilen siedeln am Geburtsort, auf diese Weise bleibt der Dialekt erhalten und Inzest wird vermieden. -Analysiert man das Repertoire benachbarten Männchen bei isolierten Alleen, so entspricht die Gesangsangleichung in etwa dem Zufall. -Intraindividuelle Vergleiche der quantitativen Parameter des jeweiligen Strophentyps wurden saisonal und annuell durchgeführt. Saisonal konnten für einen Strophentyp ein Trend ermittelt werden. Bei jährlichen Vergleichen konnten intraindividuell ausschließlich nicht signifikante Ergebnisse ermittelt werden, wohingegen die interindividuelle Variation in zwei Fällen signifikant war. In einem Fall bestand ein Trend und in einem weiteren Fall war die Variationsunterschiede nicht signifikant. - Der Verlauf der Brutsaison lässt sich an der jährlichen Gesangsaktivität nachvollziehen. Chaffinch song was recorded in Potsdam in two major populations of chaffinches over a period of three years. Each male was identified unambiguously because of their individual song type repertoires. These are usually easy to distinguish from sonagrams as the variation is discontinuous. A further point for individual recognition is the fixed territorial behaviour of adult males. The described method is employed to examine whole populations and to observe changes with space and time in the song of a population. The major findings of the study are: - The total amount of basic song types in each population is constant over years. - The quantity of each basic song type is different and varies from year to year and from population to population. - Song copying is extremely accurate on at least 96% of occasions. - Song-type sharing is high within populations. Discussed mechanisms for song neighbourhoods are: expectation of life, semi-migratory behaviour, learning skills, establishment of song types, female choice and male vs male interaction. Furthermore a model of cultural evolution of chaffinch song was programmed to determine the role of factors like error rate, rate of emigration and running time. The changes are gradual in space and time. Hence the dialect borders are smooth. Despite this fact established song types mark the population. As every second juvenile bird settles in the population of his birth inbreeding is avoided and the dialect structure is retained. - Analysing the repertoires of neighbouring males (“next door neighbours”) in isolated avenues to examine mutual influences suggests that these have the same amount of song types in common than would be expected by chance. - Within intraindividual comparisons the quantitative parameters of the same son

Nolte, Björn

2003-10-01

261

Quantitative evolutionary design  

PubMed Central

The field of quantitative evolutionary design uses evolutionary reasoning (in terms of natural selection and ultimate causation) to understand the magnitudes of biological reserve capacities, i.e. excesses of capacities over natural loads. Ratios of capacities to loads, defined as safety factors, fall in the range 1.2-10 for most engineered and biological components, even though engineered safety factors are specified intentionally by humans while biological safety factors arise through natural selection. Familiar examples of engineered safety factors include those of buildings, bridges and elevators (lifts), while biological examples include factors of bones and other structural elements, of enzymes and transporters, and of organ metabolic performances. Safety factors serve to minimize the overlap zone (resulting in performance failure) between the low tail of capacity distributions and the high tail of load distributions. Safety factors increase with coefficients of variation of load and capacity, with capacity deterioration with time, and with cost of failure, and decrease with costs of initial construction, maintenance, operation, and opportunity. Adaptive regulation of many biological systems involves capacity increases with increasing load; several quantitative examples suggest sublinear increases, such that safety factors decrease towards 1.0. Unsolved questions include safety factors of series systems, parallel or branched pathways, elements with multiple functions, enzyme reaction chains, and equilibrium enzymes. The modest sizes of safety factors imply the existence of costs that penalize excess capacities. Those costs are likely to involve wasted energy or space for large or expensive components, but opportunity costs of wasted space at the molecular level for minor components. PMID:12122135

Diamond, Jared

2002-01-01

262

[Carl Friedrich von Weizsäcker - physicist and philosopher].  

PubMed

The subject of this paper is the philosopher Carl Friedrich von weizsäcker, especially under the aspect of the relation between physics and philosophy in his works. The decisive role of time in physics as well as in philosophy is described, and thereof is derived the comprehension of probability as a predicted relative frequency. Consequently quantum mechanics is interpreted as a theory of probability that uses "quantum logic" instead of classical propositional logic that is used in "normal" probability. The philosophical fruit of that is the interpretation of potentiality as the modality of the future. Weizsäcker's proposals for a justification of physics a priori are dealt with as well as his approach to a theory of "ur-objects", which are atoms in the strictest sense: q-bits.--Questions of Weizsäcker's personality are addressed: His role in the development of the nuclear reactor and atomic bomb in Nazi time, his enthusiasm and his religiousness as well as his efforts towards world peace. PMID:24974618

Drieschner, Michael

2014-01-01

263

Quantitive DNA Fiber Mapping  

SciTech Connect

Several hybridization-based methods used to delineate single copy or repeated DNA sequences in larger genomic intervals take advantage of the increased resolution and sensitivity of free chromatin, i.e., chromatin released from interphase cell nuclei. Quantitative DNA fiber mapping (QDFM) differs from the majority of these methods in that it applies FISH to purified, clonal DNA molecules which have been bound with at least one end to a solid substrate. The DNA molecules are then stretched by the action of a receding meniscus at the water-air interface resulting in DNA molecules stretched homogeneously to about 2.3 kb/{micro}m. When non-isotopically, multicolor-labeled probes are hybridized to these stretched DNA fibers, their respective binding sites are visualized in the fluorescence microscope, their relative distance can be measured and converted into kilobase pairs (kb). The QDFM technique has found useful applications ranging from the detection and delineation of deletions or overlap between linked clones to the construction of high-resolution physical maps to studies of stalled DNA replication and transcription.

Lu, Chun-Mei; Wang, Mei; Greulich-Bode, Karin M.; Weier, Jingly F.; Weier, Heinz-Ulli G.

2008-01-28

264

Workshop on quantitative dynamic stratigraphy  

SciTech Connect

This document discusses the development of quantitative simulation models for the investigation of geologic systems. The selection of variables, model verification, evaluation, and future directions in quantitative dynamic stratigraphy (QDS) models are detailed. Interdisciplinary applications, integration, implementation, and transfer of QDS are also discussed. (FI)

Cross, T.A.

1988-04-01

265

Strategische Planung und quantitative Modellierung  

Microsoft Academic Search

Zusammenfassung Quantitative Modellierung möchte zur Entscheidungsfindung beitragen. Bevor untersucht wird, ob sie dies im strategischen Bereich tut, wird die Frage gestellt, ob die tatsächlichen strategischen Entscheidungen, die die Zukunft einer Unternehmung gestalten, innerhalb des formalen Prozesses der strategischen Unternehmensplanung fallen. Die Frage wird überwiegend verneint. Solange die Dinge so stehen, ist es nicht verwunderlich, daß quantitative Entscheidungsmodelle nichts beitragen können.

F. Hanssmann

1982-01-01

266

QUANTITATIVE 15N NMR SPECTROSCOPY  

EPA Science Inventory

Line intensities in 15N NMR spectra are strongly influenced by spin-lattice and spin-spin relaxation times, relaxation mechanisms and experimental conditions. Special care has to be taken in using 15N spectra for quantitative purposes. Quantitative aspects are discussed for the 1...

267

Quantitatively Analyzing Stealthy Communication Channels  

E-print Network

Quantitatively Analyzing Stealthy Communication Channels Patrick Butler, Kui Xu, and Danfeng and quantitatively analyze new techniques that can be used to hide malicious DNS activities both at the host and control protocol was studied by researchers in [22]. In This work has been supported in part by NSF grant

Ryder, Barbara G.

268

Quantitative analysis of software architectures  

Microsoft Academic Search

Quantitative analysis of software systems is a critical issue in the development of applications for heterogeneous distributed and mobile systems. It has been recognised that performance analysis should be integrated in the software development life cycle since the early stages. We focus on quantitative analysis of software architectures (SA) and in particular on performance models and languages to represent, evaluate

Simonetta Balsamo; Marco Bernardoand; Vincenzo Grassi

269

Sonderwirtschaftszone oder Förderung von Wachstumskernen - wie sollte eine zukünftige Ost-Förderung gestaltet werden?  

Microsoft Academic Search

Wieder einmal ist der Aufbau Ost in die Diskussion gekommen: Sonderwirtschaftszone oder Förderung von Wachstumskernen - was ist der richtige Weg, um Deutschland wieder auf Wachstumskurs zu bringen? Für Dr. Klaus von Dohnanyi, Bundesminister a.D. und Vorsitzender des \\

Klaus von Dohnanyi; Matthias Platzeck; Joachim Weimann; Helmut Seitz; Martin Gillo

2004-01-01

270

78 FR 61948 - Culturally Significant Objects Imported for Exhibition Determinations: “Franz von Stuck”  

Federal Register 2010, 2011, 2012, 2013

...Significant Objects Imported for Exhibition Determinations: ``Franz von Stuck'' SUMMARY: Notice is hereby given of the following...determine that the objects to be included in the exhibition ``Franz von Stuck,'' imported from abroad for temporary...

2013-10-07

271

Ampullary somatostatinoma associated with von Recklinghausen's neurofibromatosis presenting as obstructive jaundice.  

PubMed

A case of von Recklinghausen's disease associated with a somatostatinoma of the pancreas causing obstructive jaundice is described. Discussion on the association of von Recklinghausen's disease with somatostatinoma is presented. PMID:8654616

Tan, C C; Hall, R I; Semeraro, D; Irons, R P; Freeman, J G

1996-06-01

272

Einfache Grauwert-Transferfunktion für die Berechnung von digital rekonstruierten Röntgenbildern  

Microsoft Academic Search

Das Raycasting ist ein etabliertes Verfahren zur Berechnung von Digital Rekonstruierten Röntgenbildern (DRRs), also auf Basis von CT-Daten approximierten Radiographien, welche die Projektion eines Summationsbilds des 3D-CT-Volumens auf eine zweidimensionale Bildebene darstellen. Die Wirkung eines von einem Raycasting-Strahl durchquerten Voxels auf das Ergebnispixel im DRR kann unter anderem mit Hilfe von Transferfunktionen berechnet werden, die den Grauwert des Voxels in

Axel Newe; Richard Rascher-Friesenhausen; Heinz-Otto Peitgen

2008-01-01

273

Quantum enveloping algebras with von Neumann regular Cartan-like generators and the Pierce decomposition  

E-print Network

Quantum bialgebras derivable from Uq(sl2) which contain idempotents and von Neumann regular Cartan-like generators are introduced and investigated. Various types of antipodes (invertible and von Neumann regular) on these bialgebras are constructed, which leads to a Hopf algebra structure and a von Neumann-Hopf algebra structure, respectively. For them, explicit forms of some particular R-matrices (also, invertible and von Neumann regular) are presented, and the latter respects the Pierce decomposition.

Steven Duplij; Sergey Sinel'shchikov

2008-06-19

274

Innovation im Mittelstand am Beispiel Der Senkung Von Mobilitätskosten Durch Schwarmintelligenz"  

NASA Astrophysics Data System (ADS)

Die zunehmende Vernetzung von Einzelsystemen im Fahrzeug wird durch den Einsatz weiterer Kommunikationsverbindungen (CAR2X-Kommunikation) zu einer hierarchischen Struktur führen, die den Austausch von Informationen zwischen einer Vielzahl von verteilten heterogenen Subsystemen auf mobilen und stationären Plattformen ermöglicht. Die primären Ziele einer solchen Vernetzung von Cyber-Physical Systems sind die Bereitstellung neuer Dienste im Fahrzeug, die Erhöhung der Verkehrssicherheit sowie die effektive Steuerung der weiter wachsenden Verkehrsströme.

Fischer, Hieronymus

275

Gamma Stability in Free Product von Neumann Algebras  

NASA Astrophysics Data System (ADS)

Let {(M, \\varphi) = (M_1, \\varphi_1) * (M_2, \\varphi_2)} be a free product of arbitrary von Neumann algebras endowed with faithful normal states. Assume that the centralizer {M_1^{\\varphi_1}} is diffuse. We first show that any intermediate subalgebra {M_1 subset Q subset M} which has nontrivial central sequences in M is necessarily equal to M 1. Then we obtain a general structural result for all the intermediate subalgebras {M_1 subset Q subset M} with expectation. We deduce that any diffuse amenable von Neumann algebra can be concretely realized as a maximal amenable subalgebra with expectation inside a full nonamenable type III1 factor. This provides the first class of concrete maximal amenable subalgebras in the framework of type III factors. We finally strengthen all these results in the case of tracial free product von Neumann algebras.

Houdayer, Cyril

2014-11-01

276

von Neumann algebras and Free Probability RMS meeting, ISI Bengaluru, May 13 2009  

E-print Network

von Neumann algebras and Free Probability RMS meeting, ISI Bengaluru, May 13 2009 V.S. Sunder von Neumann algebras and Free Probability RMS meeting, ISI Bengaluru, M #12;Groups and algebras Groups: V.S. Sunder IMSc, Chennai von Neumann algebras and Free Probability RMS meeting, ISI Bengaluru, M

Sunder, V S

277

Der Aufschluß von Radiumsulfat mit Ionenaustauschharzen und die Abtrennung des Radiums D und Poloniums vom Radium  

Microsoft Academic Search

Es wird ein Verfahren beschrieben, welches die Abtrennung von Ra D, Ra E und Po vom schwerlöslichen Radium-Bariumsulfat gestattet. Po wird durch Auflösen des Sulfats in konz. Schwefelsäure und Wiederausfällen desselben durch Zugabe von Wasser zu 90–100% in Lösung gehalten. Das Sulfat kann durch Rühren mit einem Gemisch aus Kationen- und Anionenaustauscher aufgeschlossen werden. Die Abtrennung des Radiums D von

W. Dedek

1960-01-01

278

Methoden zur optischen Qualitatskontrolle Anwendung in der Produktion von Xenon-Lampen  

E-print Network

Methoden zur optischen Qualit¨atskontrolle Anwendung in der Produktion von Xenon Arbeit werden Methoden zur optischen Qualit¨atskontrolle von Xenon- Lampen evaluiert. Die automatische-Nearest-Neighbor eingeteilt werden. Die besten Ergebnisse bei der Klassifikation von geschwei�ten und ungeschwei�ten Xenon

279

Programa Final Programa Final A Obra e o Legado de John von Neumann  

E-print Network

Programa Final Programa Final A Obra e o Legado de John von Neumann Instituto de Matem'atica e lembrar e debater a extraordin'aria obra e o legado do matem'atico h'ungaro­ americano John von Neumann~ao de John von Neumann, o encontro contar'a com palestras em algumas das principais 'areas de contribui

Kohayakawa, Yoshiharu

280

MMAATTHHEEMMAATTIISSCCHHEE LLIIEEDDEERR--LLIISSTTEE Zusammengestellt von Martin Mattheis, Frauenlob-Gymnasium Mainz Stand: 18. Februar 2013  

E-print Network

://www.hjcaspar.de/werzahlen.htm 2. Goethe, Johann Wolfgang von: Das Hexeneinmaleins. Vertont durch Joseph Haydn Veröffentlicht in. Tüfteleien für Tüftler und Laien, Dümmler 1983 2 , S. 13f. (von einer Vorlage des Goethe MMAATTHHEEMMAATTIISSCCHHEE LLIIEEDDEERR--LLIISSTTEE Zusammengestellt von Martin Mattheis

van Straten, Duco

281

MMAATTHHEEMMAATTIISSCCHHEE LLIIEEDDEERR--LLIISSTTEE Zusammengestellt von Martin Mattheis, Frauenlob-Gymnasium Mainz Stand: 26. Oktober 2014  

E-print Network

://www.hjcaspar.de/werzahlen.htm 2. Goethe, Johann Wolfgang von: Das Hexeneinmaleins. Vertont durch Joseph Haydn Veröffentlicht in. Tüfteleien für Tüftler und Laien, Dümmler 1983 2 , S. 13f. (von einer Vorlage des Goethe MMAATTHHEEMMAATTIISSCCHHEE LLIIEEDDEERR--LLIISSTTEE Zusammengestellt von Martin Mattheis

van Straten, Duco

282

Zum 65. Geburtstag von Frau Univer-sittsprofessorin Dr. Irene Schulz veran-  

E-print Network

1975 an der Johann Wolfgang von Goethe Universität in Frankfurt für Physiologie. AlsZum 65. Geburtstag von Frau Univer- sitätsprofessorin Dr. Irene Schulz veran- staltete das von Prof. Dr. Schulz zur vorklinischen Forschung und ihre Konzentration auf die Zellfor- schung. Der

Huber, Patrick

283

Int J Hematol . Author manuscript von Willebrand factor: at the crossroads of bleeding and thrombosis  

E-print Network

Int J Hematol . Author manuscript Page /1 8 von Willebrand factor: at the crossroads of bleeding and thrombotic conditions ( ).Figure 1 VWF in Bleeding Hereditary von Willebrand disease The discovery of VWF is intricately linked to the history of bleeding disorders. Von Willebrand disease (VWD), identified in 1926

Boyer, Edmond

284

Quantitative analysis of 'calanchi  

NASA Astrophysics Data System (ADS)

Three years (2006 - 2009) of monitoring data from two calanchi sites located in the western Sicilian Appennines are analyzed and discussed: the data comes from two networks of erosion pins and a rainfall gauge station. The aim of the present research is to quantitatively analyze the effects of erosion by water and to investigate their relationships with rainfall trends and specific properties of the two calanchi fronts. Each of the sites was equipped with a grid of randomly distributed erosion pins, made of 41 nodes for the "Catalfimo" site, and 13 nodes for the "Ottosalme" site (in light of the general homogeneity of its geomorphologic conditions); the erosion pins consist in 2 cm graded iron stakes, 100 cm long, with a section having a diameter of 1.6 cm. Repeated readings at the erosion pins allowed to estimate point topographic height variations; a total number of 21 surveys have been made remotely by acquiring high resolution photographs from a fixed view point. Since the two calanchi sites are very close each other (some hundred meters), a single rainfall gauge station was installed, assuming a strict climatic homogeneity of the investigated area. Rainfall data have been processed to derive the rain erosivity index signal, detecting a total number of 27 erosive events. Despite the close distance between the two sites, because of a different geologic setting, the calanchi fronts are characterized by the outcropping of different levels of the same formation (Terravecchia fm., Middle-Late Miocene); as a consequence, both mineralogical, textural and geotechnical (index) properties, as well as the topographic and geomorphologic characteristics, change. Therefore, in order to define the "framework" in which the two erosion pin grids have been installed, 40 samples of rock have been analyzed, and a geomorphologic detailed survey has been carried out; in particular, plasticity index, liquid limit, carbonate, pH, granulometric fractions and their mineralogic properties, electrical conductivity and sodium adsorption ratio (SAR), have been characterized. The analysis of the data allows to define relationships between the response of each erosion pin and the erosive rainfall events, the micro-hydrologic of its position and lithotechnical properties of the outcropping rocks. The estimations of the mean annual erosion rate and of the erosivity index, as well as results of the terrain analysis, largely agree with available data from literature observed in similar sites affected by calanchi development. Moreover, the gained results well reflect the differences of the morphologic features and their distribution on the two calanchi fronts; of particular interest is the spatial distribution and variability of piping landforms that markedly influence the development of gullies, specially on "Catalfimo" site, where a high frequency of pipes of different typologies can be detected.

Agnesi, Valerio; Cappadonia, Chiara; Conoscenti, Christian; Costanzo, Dario; Rotigliano, Edoardo

2010-05-01

285

Quantitative Genetics, House Sparrows and a Multivariate  

E-print Network

NTNU Quantitative Genetics, House Sparrows and a Multivariate Gaussian Markov Random Field Model Quantitative Genetics, House Sparrows and a Multivariate Gaussian Markov Random Field Model ­ p.1/25 #12;NTNU Quantitative Genetics Quantitative genetics is the study of quantitative characters. It is based

Steinsland, Ingelin

286

Erkennen und Bewerten von Dysfunktionen und Schmerzphänomenen im kraniomandibulären System  

Microsoft Academic Search

Zusammenfassung  \\u000a Der logische Aufbau der Untersuchungssequenz erlaubt die volle Integration des Systems in die tägliche Praxis. Sie schafft\\u000a ein Maximum an diagnostischer Sicherheit. Dabei lebt die Sicherheit der Aussagen aus der Untersuchungskaskade von der Menge\\u000a und Qualität der von jedem einzelnen Arzt durchgeführten Untersuchungen und der darauf aufbauenden Therapie.\\u000a \\u000a \\u000a \\u000a Die genaue Differenzierung der Funktionsstörungen des kraniomandibulären Systems (CMS) in dento-\\/okklusogene,

S. Kopp; W. G. Sebald; G. Plato

2000-01-01

287

On Incremental Quantitative Verification for Probabilistic Systems  

E-print Network

On Incremental Quantitative Verification for Probabilistic Systems Marta Kwiatkowska, David Parker, Hongyang Qu and Mateusz Ujma Department of Computer Science, University of Oxford Abstract Quantitative for adaptive systems. We argue the need for incremental quantitative verification techniques which are able

Oxford, University of

288

Better Quality in Synthesis through Quantitative Objectives #  

E-print Network

Better Quality in Synthesis through Quantitative Objectives # Roderick Bloem 1 , Krishnendu quantitative properties to measure the ``goodness'' of an implementation. Using games with corresponding quantitative objectives, we can synthesize ``optimal'' implementations, which are preferred among the set

Henzinger, Thomas A.

289

Quantitative Verification Techniques for Biological Processes  

E-print Network

of a rich selection of quantitative properties. 1 Introduction Recent research has had considerable successDRAFT Quantitative Verification Techniques for Biological Processes Marta Kwiatkowska, Gethin approach but, by employing formal verification techniques, compute exact quantitative mea- sures as opposed

Oxford, University of

290

Multizentrische prospektive kontrollierte Studie zur Therapie der chronisch myeloischen Leukämie. Vergleich von Busulfan, Hydroxyurea und Interferon alpha (Stand April 1990)  

Microsoft Academic Search

Zusammenfassung In einer multizentrischen Studie wird geprüft, ob der Einsatz von Hydroxyurea oder von Interferon alpha anstatt von Bulsulfan die Dauer der chronischen Phase bei Patienten mit Philadelphia-Chromo-som-positiver CML verlängert. Zusätzliche Ziele sind die Prüfung, ob sich der Typ der Krankheitsevolution und die terminalen Phasen bei den verschiedenen Therapiegruppen unterscheiden, sowie die pro-, spektive Erkennung von Prognosekriterien für die Dauer

R. Hehlmann; H. Heimpel; B. Heinze; A. Georgii; H. J. Kolb; D. K. Hossfeld; P. v. Wussow; A. Hochhaus; M. Grießhammer; V. Diehl; P. D. Wickramanayake; W. Gallmeier; C. Falge; U. Essers; L. Bergmann; P. Meyer; F. Walther; L. Kanz; U. Queißer; J. Hohnloser; M. Westerhausen; U. R. Kleeberg; A. Heilein; A. Käbisch; F. Heiss; R. Zimmermann; G. Meuret; A. Tichelli; W. E. Berdel; N. Schmitz; F.-J. Tigges; H. Eimermacher; L. Schmid; H. Löffler; H. Pralle; W. Queißer; R. Burkhardt; H. Ansari; J. Hasford

1991-01-01

291

Developing Geoscience Students' Quantitative Skills  

NASA Astrophysics Data System (ADS)

Sophisticated quantitative skills are an essential tool for the professional geoscientist. While students learn many of these sophisticated skills in graduate school, it is increasingly important that they have a strong grounding in quantitative geoscience as undergraduates. Faculty have developed many strong approaches to teaching these skills in a wide variety of geoscience courses. A workshop in June 2005 brought together eight faculty teaching surface processes and climate change to discuss and refine activities they use and to publish them on the Teaching Quantitative Skills in the Geosciences website (serc.Carleton.edu/quantskills) for broader use. Workshop participants in consultation with two mathematics faculty who have expertise in math education developed six review criteria to guide discussion: 1) Are the quantitative and geologic goals central and important? (e.g. problem solving, mastery of important skill, modeling, relating theory to observation); 2) Does the activity lead to better problem solving? 3) Are the quantitative skills integrated with geoscience concepts in a way that makes sense for the learning environment and supports learning both quantitative skills and geoscience? 4) Does the methodology support learning? (e.g. motivate and engage students; use multiple representations, incorporate reflection, discussion and synthesis) 5) Are the materials complete and helpful to students? 6) How well has the activity worked when used? Workshop participants found that reviewing each others activities was very productive because they thought about new ways to teach and the experience of reviewing helped them think about their own activity from a different point of view. The review criteria focused their thinking about the activity and would be equally helpful in the design of a new activity. We invite a broad international discussion of the criteria(serc.Carleton.edu/quantskills/workshop05/review.html).The Teaching activities can be found on the Teaching Quantitative Skills in the Geosciences website (serc.Carleton.edu/quantskills/). In addition to the teaching activity collection (85 activites), this site contains a variety of resources to assist faculty with the methods they use to teach quantitative skills at both the introductory and advanced levels; information about broader efforts in quantitative literacy involving other science disciplines, and a special section of resources for students who are struggling with their quantitative skills. The site is part of the Digital Library for Earth Science Education and has been developed by geoscience faculty in collaboration with mathematicians and mathematics educators with funding from the National Science Foundation.

Manduca, C. A.; Hancock, G. S.

2005-12-01

292

The Role of Audience in Quantitative Writing  

NSDL National Science Digital Library

This workshop entails the reading of a highly quantitative article, summarizing it for a different audience, and reflecting upon what choices and opportunities audience presents for quantitative writers.

Julian Westerhout

293

Der Effekt von Sotalol vs. Metoprolol auf die Häufigkeit von Kammertachykardien, Kammerflimmern und Vorhofflimmern bei Patienten mit implantierbarem Cardioverter-Defibrillator .  

E-print Network

??Eine Betablockertherapie ist bei den meisten Patienten mit ICD aufgrund der Grunderkrankung (Herzinsuffizienz, KHK) indiziert. Unklar ist weiterhin, ob der Klasse III antiarrhythmische Effekt von… (more)

Fernengel, Adina

2007-01-01

294

Dr. Wernher Von Braun near the mobile launcher.  

NASA Technical Reports Server (NTRS)

Dr. George Mueller, NASA associate administrator for manned space flight, and Dr. Wernher Von Braun (right), director of the Marshall Space Flight Center, are seen near the mobile launcher carrying a 363 foot tall Saturn V space launch vehicle as the rocket is rolled from the vehicle assembly building at KSC for its three mile trip to the launch pad.

1999-01-01

295

Discriminating between the von Neumann and Lüders reduction rule  

E-print Network

Given an ensemble of systems in an unknown state, as well as an observable $\\hat A$ and a physical apparatus which performs a measurement of $\\hat A$ on the ensemble, whose detailed working is unknown ('black box'), how can one test whether the L\\"uders or von Neumann reduction rule applies?

G. C. Hegerfeldt; R. Sala Mayato

2011-11-04

296

Acceleration Waves in the von Karman Plate Theory  

E-print Network

In the present work we study acceleration waves in plate-like bodies using the balance laws for the time-dependent von Karman equations presented in [P. A. Djondjorov and V. M. Vassilev, Conservation Laws and Group-Invariant Solutions of the von Karman Equations, Int. J. Nonlinear Mech. 31 (1), pp. 73-87, (1986)]. Two of these balance laws correspond to the time-dependent von Karman equations themselves. They are used to define acceleration waves in thin isotropic elastic plates as discontinuity solutions with finite jumps of second derivatives of the displacement field at a certain curve - the wave front. These two balance laws lead through Hadamard's lemma and Kotchin's theorem to a set of jump conditions on the wave front. Similarly, the other balance laws lead to additional and independent jump conditions on the curve of discontinuity. Several examples are given to illustrate the effect of involving jump conditions of that kind in analysis of acceleration waves in plates. The examples are composed on the basis of three families of group-invariant solutions to the time-dependent von Karman equations. They present three kinds of waveforms pertaining to the class of the so-called relatively undistorded progressive waves. We analyze the propagation of this special kind of acceleration waves into a known state of plate motion.

Peter A. Djondjorov; Vassil M. Vassilev

2000-06-27

297

Abwehrreaktionen der Wirtstiere von Polymorphus boschadis Schr. (Acanthocephala)  

Microsoft Academic Search

Bei Befall durch Polymorphus boschadis treten in Gammarus keinerlei zelluläre Abwehrmechanismen in Erscheinung, wohl aber ist parasitäre Kastration des Wirtes festzustellen. Da die überwiegende Mehrzahl der Gammariden nur von 1–2 Parasiten befallen ist, muß angenommen werden, daß humorale Wirkungen eine weitere Infektion unmöglich machen. Am Entendarm bringt Polymorphus eigenartige Knötchenbildungen mit senkrecht zur Oberfläche des Parasiten verlaufenden Bindegewebsfibrillen hervor. Weitere

Otto Pflugfelder

1956-01-01

298

Vorarbeiten zur monographischen Darstellung von Wildpflanzensortimenten: Agrostemma L  

Microsoft Academic Search

Zusammenfassung Agrostemma githago ist ein typisches Saatgut-Unkraut, das zu den Segetalarten mit konvergentem Entwicklungstyp gehört; es hat sich in seinen Samenmerkmalen an die von ihm begleiteten Kulturpflanzen, vor allem an Getreide, anpassen können und ist dabei selbst Domestikationsvorgängen unterworfen worden. Dadurch ist es zu Adaptationen gekommen, wie sie vor allem bei der Evolution sekundärer Kulturpflanzen (z. B. Roggen, Hafer) eine

Karl Hammer; Peter Hanelt; Helmut Knüpffer

1982-01-01

299

Von Hippel-Lindau disease in pregnancy: A brief review  

Microsoft Academic Search

The hormonal and hemodynamic effects of pregnancy accelerate the growth of hemangioblastomas in Von Hippel-Lindau syndrome (VHL), leading to increased symptoms and risk to both the mother and fetus. A review of the literature on the treatment of VHL in pregnancy would suggest surgical intervention should be considered with worsening clinical status. Introducing this review is a description of our

Melanie G. Hayden; Rosanne Gephart; Paul Kalanithi; Dean Chou

2009-01-01

300

Volume-preserving Mesh Skinning Wolfram von Funck1  

E-print Network

Volume-preserving Mesh Skinning Wolfram von Funck1 , Holger Theisel2 , Hans-Peter Seidel1 1 MPI,hpseidel}@mpi-inf.mpg.de, theisel@isg.cs.uni-magdeburg.de Abstract We present a straightforward, yet effective approach to volume-preserving mesh skinning. After each skinned mesh deformation, a volume correction is applied which moves

301

Dr. von Braun, Governor Wallace and NASA Administrator Webb  

NASA Technical Reports Server (NTRS)

In this photograph are Alabama Governor George Wallace (left), Marshall Space Flight Center Dr. Wernher von Braun (Center) and NASA Administrator James Webb (right). Governor Wallace and Dr. Webb were at MSFC to witness the first test firing of a Saturn V Booster, along with members of the Alabama legislature and press reporters.

1965-01-01

302

Dr. von Braun with Governor Wallace and NASA Administrator Webb  

NASA Technical Reports Server (NTRS)

Governor of Alabama George Wallace (left), NASA Administrator James Webb and Marshall Space Flight Center (MSFC) Director Dr. von Braun during a tour of MSFC on June 8, 1965. Governor Wallace and Dr. Webb were at MSFC to witness the first test firing of a Saturn V Booster, along with members of the Alabama legislature and press reporters.

1965-01-01

303

Coarse graining and decoherence translated into von Neumann language  

Microsoft Academic Search

The notions of coarse graining and decoherence, introduced recently by Gell-Mann and Hartle for quantum cosmology, have been reformulated in usual terms of the formal von Neumann measurement theory. The formalism of continuous measurement has shown to be equivalent to coarse graining, with the soft version of decoserence. The author is grateful to Nordita and to the Niels Bohr Institute

Lajos Diósi

1992-01-01

304

Por: Christa von Hillebrandt-Andrade Investigadora Auxiliar y Directora  

E-print Network

Por: Christa von Hillebrandt-Andrade Investigadora Auxiliar y Directora Gisela Báez, 2004, M 6.6 #12;Tsunami Océano Indico, 26 de Diciembre de 2004 #12;antes Kalutara, Sri Lanka Dec. 26, 2004 Tsunami durante Natural Color, High Resolution Quick Bird Satellite Image Digital Globe #12

Gilbes, Fernando

305

The education of Ehrenfried Walther von Tschirnhaus (1651-1708).  

PubMed

Ehrenfried Walther von Tschirnhaus, mathematician, inventor, and correspondent of Spinoza, is often thought to have studied medicine at Leiden, though documentation of this fact has been lacking. Tschirnhaus' medical education is here documented, along with the nature of his medical practice. PMID:24585587

Adler, Jacob

2015-02-01

306

EINBLICKE Nr. 44 / Herbst 2006 Carl von Ossietzky Universitt Oldenburg  

E-print Network

EINBLICKE Nr. 44 / Herbst 2006 Carl von Ossietzky Universität Oldenburg Hannah Arendt und Martin Herbst 1924 war die junge Königsber- gerin Hannah Arendt mit einer Gruppe gleichgesinnter Freunde nach auf erneuern. Der junge Hochschullehrer verliebte sich in die bildschöne intelligente Studentin. Man

Boll, Susanne

307

Messung der Turbulenz und von Turbulenzkomponenten mit Hilfe der Koronaentladung  

Microsoft Academic Search

Zusammenfassung Es werden Meßergebnisse zum Existenzbereich der Korona mitgeteilt bei Parametern, die für die anemometrische Verwendung der Korona passend gewählt wurden. Für eine Entladung in strömendem Gas wird der Einfluß der Strömungsgeschwindigkeit auf den Koronastrom untersucht und verschiedene Wirkungen werden quantitativ getrennt. Die obere Grenzfrequenz des Koronaanemometers wird abgeschätzt. An Hand des Verlaufs der anemometrischen Steilheit in Abhängigkeit von der

Wilhelm Fucks

1954-01-01

308

Untersuchungen über die Antigenstruktur von Intermediärstämmen aus der Gattung Brucella  

Microsoft Academic Search

Zusammenfassung Die Verteilung der A- und M-Antigene bei zweierlei Intermediärstämmen aus der Gattung Brucella wurde mit Hilfe quantitativer Absättigungsverfahren untersucht. Drei Intermediärstämme, die sich biochemisch wie Br. abortus verhielten, jedoch von monospezifischen Melitensisseren agglutiniert wurden, zeigten gegenüber typischen Melitensisstämmen geringe, aber regelmäßig nachweisbare Differenzen, die dafür sprachen, daß diese Intermediärstämme weniger A-Antigen enthielten als typische Melitensisstämme. 18 Intermediärstämme, die sich

Wilhelm Wundt

1959-01-01

309

THE FINE STRUCTURE OF VON EBNER'S GLAND OF THE RAT  

Microsoft Academic Search

The fine structure of von Ebner's gland was studied in untreated rats and rats stimulated to secrete by fasting-refeeding or injection of pilocarpine . Cytological features were similar to those reported for pancreas and parotid gland . Abundant granular endoplasmic reticulum filled the basal portion of the cell, a well-developed Golgi complex was located in the vicinity of the nucleus,

ARTHUR R. HAND

2009-01-01

310

John von Neumann Institute for Computing Monte Carlo Protein Folding  

E-print Network

John von Neumann Institute for Computing Monte Carlo Protein Folding: Simulations of Met://www.fz-juelich.de/nic-series/volume20 #12;#12;Monte Carlo Protein Folding: Simulations of Met-Enkephalin with Solvent-Accessible Area difficulties in applying Monte Carlo methods to protein folding. The solvent-accessible area method, a popular

Hsu, Hsiao-Ping

311

Von Kármán's Constant in Atmospheric Boundary Layer Flow: Reevaluated  

Microsoft Academic Search

A field experiment has been carried out with the specific objective in mind to determine the value of von Kármán's constant in atmospheric boundary layer flow, and also to investigate its possible dependence on the surface Rossby number Ro0. Data from three field measurement campaigns at Marsta, Sweden, were used in the analysis. Depending on the ground cover: deep snow

Ulf Högström

1985-01-01

312

BIOMEDICINE: Contact--How Platelets Touch von Willebrand Factor  

NSDL National Science Digital Library

Access to the article is free, however registration and sign-in are required. The initiation of clotting at sites of vascular injury involves the adhesion of platelets to von Willebrand factor (VWF) via the surface glycoprotein GPIba. In a Perspective, Sadler discusses a new structural analysis (Huizinga et al.) that sheds light on how platelet GPIba interacts with VWF.

J. Evan Sadler (Washington University School of Medicine;Department of Medicine, Department of Biochemistry and Molecular Biophysics, and Howard Hughes Medical Institute)

2002-08-16

313

Wernher von Braun: Reflections on His Contributions to Space Exploration  

NASA Technical Reports Server (NTRS)

In 1950, Dr. Wernher von Braun and approximately 100 of his team members came to Huntsville, Alabama, to begin work with the Army on what would later become America's historic space program. He would later serve as the first director of the Marshall Space Flight Center and led the development of the Saturn V launch vehicle that launched seven crewed American mission to the moon, as well as America s first space station, Skylab. Von Braun is best known for his team s technical achievements. He realized his dream of exploring outer space by helping place humans on the moon. His engineering and managerial talent during the Apollo era had contributed to a technological revolution. He was by all accounts a good engineer, but he was only one among many. What set Von Braun apart were his charisma, his vision, and his leadership skills. He inspired loyalty and dedication in the people around him. He understood the importance of communicating his vision to his team, to political and business leaders and the public. Today, the Marshall Center continues his vision by pursuing engineering and scientific projects that will continue to open space to exploration. This presentation will discuss Von Braun's impact on Huntsville, the Marshall Center, the nation and the world and look at his contributions in context of where world space exploration is today.

Goldman, Arthur E.

2012-01-01

314

Otto von Guericke and 17th century cosmology  

Microsoft Academic Search

Otto von Guericke's scientific method was based on reason and experimental science. His cosmology was embedded in theology and can be interpreted as a refutation of Descartes' worldview. He used Nicolaus Cusanus' theory of quantities in order to characterize space. The notion of space has to be distinguished from that of world or heaven. Forces play a crucial role in

Eberhard Knobloch

2004-01-01

315

Ernst von Glasersfeld's Radical Constructivism and Truth as Disclosure  

ERIC Educational Resources Information Center

In this essay Clarence Joldersma explores radical constructivism through the work of its most well-known advocate, Ernst von Glasersfeld, who combines a sophisticated philosophical discussion of knowledge and truth with educational practices. Joldersma uses Joseph Rouse's work in philosophy of science to criticize the antirealism inherent in…

Joldersma, Clarence W.

2011-01-01

316

Durchzug und Übersommern von Limikolen im nördlichen Vorland des Kaspi  

Microsoft Academic Search

Zusammenfassung Ledige, nicht brütende Individuen vonTringa ochropus, T. nebularia, T. glareola, Charadrius hiaticula, C. morinellus, Gallinago gallinago, Calidris minuta, C. alpina, C. ferruginea undPhalaropus lobatus werden im nördlichen Prikaspija während des ganzen Sommerhalbjahres angetroffen; sie führen hier eine seßhafte Lebensweise.

A. N. Poslawski

1968-01-01

317

Professor Oberth and Dr. von Braun at ARS Banquet  

NASA Technical Reports Server (NTRS)

Dr. Wernher von Braun holds the coveted Hermarn Oberth award presented to him by Professor Oberth during the banquet hosted by the Alabama Section of the American Rocket Society (ARS), on October 19, 1961. The Oberth award was given for outstanding technical contributions to the field of astronautics or for the promotion and advancement of astronautical sciences.

1961-01-01

318

Wilhelm von Humboldt's Idea of "Bildung" and Education.  

ERIC Educational Resources Information Center

The importance of Wilhelm von Humboldt's work in educational philosophy is little known outside of Germany and even there he is more often criticized than praised. This is unfortunate because his contributions to education and other areas had an important impact on other philosophers of his period and are well worth considering today. In his main…

Stubbs, Elsina

319

Neandertaler, Hobbits und Schimpansen: Was unterscheidet sie von uns?  

E-print Network

Neandertaler, Hobbits und Schimpansen: Was unterscheidet sie von uns? Seniorenuniversität Bern 19. November 2010 Jürg Kohli Prof. em. Genetik #12;Titel Text Jürg Kohli #12;Hobbit 2003 Jürg Kohli Homo;Ueberblick Jürg Kohli - Einleitung: Neandertaler, Hobbit, Schimpansen - Molekulargenetik: Gene, Genome

Mühlemann, Oliver

320

Management von Kultur-und Non-Profit-Organisationen  

E-print Network

Management von Kultur- und Non-Profit-Organisationen Autorin Dr. Saskia Reither Berufsbilder und Handlungsfelder im Non-Profit-Sektor Studienbrief MKN1040 Fernstudium postgradual Leseprobe #12;Das Werk ist.1.1 Was versteht man unter Non-Profit-Organisationen? 1 1.1.2 Renaissance des zivilgesellschaftlichen Engagements

Pinnau, René

321

Using Hard AI Problems For Security Luis von Ahn1  

E-print Network

CAPTCHA: Using Hard AI Problems For Security Luis von Ahn1 , Manuel Blum1 , Nicholas J. Hopper1.J. Watson Research Center, Yorktown Heights NY 10598, USA Abstract. We introduce captcha, an automated test a captcha can be used to solve an unsolved Artifi- cial Intelligence (AI) problem. We provide several novel

von Ahn, Luis

322

Harnsäure als zusätzliche stickstoffquelle Für larven von Lasioderma Serricorne F  

Microsoft Academic Search

Larven von Lasioderma serricorne F. sind in der Lage, bei Unterdosierung des Caseins in synthetischen Diäten Guanin, Xanthin, Harnsäure und Allantoin als zusätzliche N- Quellen zu verwerten. Die Bedeutung für den Proteinhaushalt der Larven Bowie die Beteiligung der Symbionten werden diskutiert.

Gerhard Jurzitza

1966-01-01

323

Elektronenoptische Untersuchungen der Körperdecke von Arion rufus L. ( Pulmonata )  

Microsoft Academic Search

Zusammenfassung Es wird ein Überblick über das Oberflächenepithel der WegschneckeArion rufus L. gegeben. Beschrieben werden Flimmerepithel und das Saumepithel, welches den größten Teil der Oberfläche bedeckt. An gewissen Stellen dieses Epithels kommt blasige Sekretion vor, bei deren Verlauf die Mikrovilli verschwinden, um zunächst die Zellen zu einem „Zinnenepithel“ werden zu lassen, welches später von der Oberfläche große Kugeln abschnürt.

Günter Wondrak

1968-01-01

324

Amphiphilic hard body mixtures Matthias Schmidt and Christian von Ferber  

E-print Network

Amphiphilic hard body mixtures Matthias Schmidt and Christian von Ferber Institut fu¨r Theoretische Received 16 June 2001; published 29 October 2001 In order to study ternary amphiphilic mixtures, we and amphiphilic particles, where the hydrophilic head is modeled as a hard sphere and the hydrophobic tail

Ott, Albrecht

325

Intraoperative Neuronavigation von Hirntumoren unter Einschluss des Tractus corticospinalis mit Hilfe von Diffusion Tensor Imaging und Fiber Tracking  

Microsoft Academic Search

Zusammenfassung Ziel: Durch Integration des Fiber Tracking in die intraoperative Neuronavigation sollten die Lage der kortikospinalen Bahnen bei der Operation von Hirntumoren dargestellt und gleichzeitig die Lokalisation der Trajektorien mit einer unabhängigen Methode auf Ortsgenauigkeit überprüft werden. Patienten und Methodik: Dazu wurden bei 21 Patienten MR-Untersuchungen mit Diffusion Tensor Imaging (DTI) durchgeführt, die Tensorenfelder berechnet und die Bahnenverläufe mittels eines

Paulo Roberto Dellani; Martin Glaser; Andrei Tropine; Goran Vucurevic; Thomas Bauermann; Paulo Roberto Wille; Ulrich Strecker; Axel Stadie; Axel Perneczky; Peter Stoeter

2004-01-01

326

Bidirectional quantitative force gradient microscopy  

NASA Astrophysics Data System (ADS)

Dynamic operation modes of scanning force microscopy based on probe resonance frequency detection are very successful methods to study force-related properties of surfaces with high spatial resolution. There are well-recognized approaches to measure vertical force components as well as setups sensitive to lateral force components. Here, we report on a concept of bidirectional force gradient microscopy that enables a direct, fast, and quantitative real space mapping of force component derivatives in both the perpendicular and a lateral direction. It relies solely on multiple-mode flexural cantilever oscillations related to vertical probe excitation and vertical deflection sensing. Exploring this concept we present a cantilever-based sensor setup and corresponding quantitative measurements employing magnetostatic interactions with emphasis on the calculation of mode-dependent spring constants that are the foundation of quantitative force gradient studies.

Reiche, Christopher F.; Vock, Silvia; Neu, Volker; Schultz, Ludwig; Büchner, Bernd; Mühl, Thomas

2015-01-01

327

Zelltyp-spezifische Mikroanalyse von Arabidopsis thaliana-Blättern  

NASA Astrophysics Data System (ADS)

Im ersten Teil der Arbeit wurden Strategien zur Analyse von Transkripten erarbeitet. Die ersten Versuche zielten darauf ab, in mit Glaskapillaren genommenen Einzelzellproben verschiedener Gewebeschichten RT-PCR durchzuführen, um spezifische Transkripte nachweisen zu können. Dies gelang für eine Reihe von Genen aus verschiedenen Pflanzenspezies. Dabei konnten sowohl Transkripte stark wie auch schwach exprimierter Gene nachgewiesen werden. Für die Erstellung von Gewebe-spezifischen Expressionsprofilen war es notwendig, die in vereinigten Zellproben enthaltene mRNA zunächst zu amplifizieren, um eine ausreichende Menge für Arrayhybridisierungen zu erhalten. Vor der Vermehrung wurde die mRNA revers transkribiert. Es wurden daran anschließend verschiedene Amplifikationsstrategien getestet: Die neben Tailing, Adapterligation und anderen PCR-basierenden Protokollen getestete Arbitrary-PCR hat sich in dieser Arbeit als einfache und einzige Methode herausgestellt, die mit so geringen cDNA-Mengen reproduzierbar arbeitet. Durch Gewebe-spezifische Array-hybridisierungen mit der so amplifizierten RNA konnten schon bekannte Expressionsmuster verschiedener Gene, vornehmlich solcher, die an der Photosynthese beteiligt sind, beobachtet werden. Es wurden aber auch eine ganze Reihe neuer offensichtlich Gewebe-spezifisch exprimierter Gene gefunden. Exemplarisch für die differentiell exprimierten Gene konnte das durch Arrayhybridisierungen gefundene Expressionsmuster der kleinen Untereinheit von Rubisco verifiziert werden. Hierzu wurden Methoden zum Gewebe-spezifischen Northernblot sowie semiquantitativer und Echtzeit-Einzelzell-RT-PCR entwickelt. Im zweiten Teil der Arbeit wurden Methoden zur Analyse von Metaboliten einschließlich anorganischer Ionen verwendet. Es stellte sich heraus, daß die multiparallele Methode der Gaschromatographie-Massenspektrometrie keine geeignete Methode für die Analyse selbst vieler vereinigter Zellinhalte ist. Daher wurde auf Kapillarelektrophorese zurückgegriffen. Eine Methode, die mit sehr kleinen Probenvolumina auskommt, eine hohe Trennung erzielt und zudem extrem geringe Detektionslimits besitzt. Die Analyse von Kohlenhydraten und Anionen erfordert eine weitere Optimierung. Über UV-Detektion konnte die K+-Konzentration in verschiedenen Geweben von A. thaliana bestimmt werden. Sie lag in Epidermis und Mesophyll mit ca. 25 mM unterhalb der für andere Pflanzenspezies (Solanum tuberosum und Hordeum vulgare) publizierten Konzentration. Weiter konnte gezeigt werden, daß zwölf freie Aminosäuren mittels einer auf Kapillarelektrophorese basierenden Methode in vereinigten Zellproben von Cucurbita maxima identifiziert werden konnten. Die Übertragung der Methode auf A. thaliana-Proben muß jedoch weiter optimiert werden, da die Sensitivität selbst bei Laser induzierter Fluoreszenz-Detektion nicht ausreichte. Im dritten und letzten Teil der Arbeit wurde eine Methode entwickelt, die die Analyse bekannter wie unbekannter Proteine in Gewebe-spezifischen Proben ermöglicht. Hierzu wurde zur Probennahme mittels mechanischer Mikrodissektion eine alternative Methode zur Laser Capture Microdissection verwendet, um aus eingebetteten Gewebeschnitten distinkte Bereiche herauszuschneiden und somit homogenes Gewebe anzureichern. Aus diesem konnten die Proteine extrahiert und über Polyacrylamidgelelektrophorese separariert werden. Banden konnten ausgeschnitten, tryptisch verdaut und massenspektrometrisch die Primärsequenz der Peptidfragmente bestimmt werden. So konnten als Hauptproteine im Mesophyll die große Untereinheit von Rubisco sowie ein Chlorophyll bindendes Protein gefunden werden. Die in dieser Arbeit entwickelten und auf die Modellpflanze Arabidopsis thaliana angewandten Einzelzellanalysetechniken erlauben es in Zukunft, physiologische Prozesse besser sowohl räumlich als auch zeitlich aufzulösen. Dies wird zu einem detaillierteren Verständnis mannigfaltiger Vorgänge wie Zell-Zell-Kommunikation, Signalweiterleitung oder Pflanzen-Pathogen-Interaktionen führen. The subject of this thesis was the analys

Brandt, Stephan Peter

2002-04-01

328

Quantitative Literacy for Social Justice  

ERIC Educational Resources Information Center

In this article, we argue that many adults lack the "numeracy" needed to function in a maximally effective manner in their vocational, civic, and personal lives. We believe schools need to foster skills in quantitative literacy (QL), an inclination and ability to make reasoned decisions using general world knowledge and fundamental mathematics in…

Wiest, Lynda R.; Higgins, Heidi J.; Frost, Janet Hart

2007-01-01

329

Quantitative analysis using chromatographic techniques  

SciTech Connect

The book is divided into nine contributed chapters. Chapter 1 is an elementary introduction to the concepts of the chromatographic process. Chapter 2 is a brief discussion of the detectors used in liquid chromatography; many similar and more comprehensive reviews exist. Quantitative measurements in liquid chromatography are discussed in Chapter 3 with examples taken from the author's work. The most popular detectors used in gas chromatography are reviewed in Chapter 4, which is followed by a treatment of quantitative analysis with gas chromatography (Chapter 5). A good portion of Chapter 6 dealing with quantitative thin-layer chromatography is taken from an earlier book by one of the authors, but the discussion of errors is new and more complete than those in Chapter 3 and 5. Chapter 7 deals with the application of quantitative chromatographic methods to the analysis of pharmaceuticals. The desiderata of automated analytical methods are discussed in Chapter 8; it concludes with a discussion of the use of robots for the preparation of samples and the loading of them into otherwise fully automated chromatographic systems. In Chapter 9 an introduction is given to the complex matter of extracting information from the shapes of peaks generated by liquid chromatography.

Katz, E.

1987-01-01

330

Quantitative Research in Written Composition.  

ERIC Educational Resources Information Center

Offered as an introductory guide to teachers interested in approaching written English as a "second dialect" that students must master, this review covers quantitative investigations of written language. The first section deals with developmental studies, describing how a variety of researchers have related written structure to writer maturity.…

Gebhard, Ann O.

331

Quantitative Proteomics Isotope Coding Proteomics  

E-print Network

Smaller final tag ­ more informative MS/MS spectra Coefficient-of-variation in test system ­ 10% #12 side chains) - isomeric/isobaric labels (MS/MS based readout) Reporter Balance PRG Peptide 145 amu Facilitates quantitation of PTMs #12;control test 1 test 2 test 3 reduce, alkylate, digest label combine

Richardson, David

332

Quantitative genomics of female reproduction  

Technology Transfer Automated Retrieval System (TEKTRAN)

Numerous quantitative trait loci (QTL) for reproductive traits in domestic livestock have been described in the literature. In this chapter, the components needed for detection of reproductive trait QTL are described, including collection of phenotypes, genotypes, and the appropriate statistical ana...

333

CROP & SOIL SCIENCES Quantitative Genomics  

E-print Network

CROP & SOIL SCIENCES Quantitative Genomics Committee Membership Dr. Scott Jackson - committee chair Dr. Peng-Wah Chee Department of Crop & Soil Sciences Department of Crop & Soil Sciences University of Horticulture Department of Crop & Soil Sciences University of Georgia University of Georgia 2360 Rainwater Rd

Arnold, Jonathan

334

A Quantitative Infrared Spectroscopy Experiment.  

ERIC Educational Resources Information Center

Although infrared spectroscopy is used primarily for qualitative identifications, it is possible to use it as a quantitative tool as well. The use of a standard curve to determine percent methanol in a 2,2,2-trifluoroethanol sample is described. Background information, experimental procedures, and results obtained are provided. (JN)

Krahling, Mark D.; Eliason, Robert

1985-01-01

335

Quantitative Models in Marketing Research  

Microsoft Academic Search

Advances in data collection and data storage techniques have enabled marketing researchers to study the individual characteristics of a large range of transactions and purchases, in particular the effects of household-specific characteristics. This 2001 book presents important and practically relevant quantitative models for marketing research. Each model is presented in detail with a self-contained discussion, which includes: a demonstration of

Philip Hans Franses; Richard Paap

2001-01-01

336

Automated Quantitative Histomorphometry in Osteoarthritis  

E-print Network

Automated Quantitative Histomorphometry in Osteoarthritis Eigil Mølvig Jensen Supervised by Bjarne in the preclinical phase when researching for compounds as drug candidates. In the matter of osteoarthritis (degenerative joint disease), part of the research includes test on mice which spontaneously develop the disease

337

SAFETY ANALYSIS QUANTITATIVE ANALYSIS ON  

E-print Network

and opposite right-turn (please note that vehicles travel along the left side of the road in Japan) traffic caused about 95% of all the traffic accidents, can be considered quantitatively in this model. Very of previous work on traffic accident modeling. Then, we describe our microscopic methodology for modeling AG

Wang, Yinhai

338

Tubular von Hippel-Lindau Knockout Protects against Rhabdomyolysis-Induced AKI  

PubMed Central

Renal hypoxia occurs in AKI of various etiologies, but adaptation to hypoxia, mediated by hypoxia-inducible factor (HIF), is incomplete in these conditions. Preconditional HIF activation protects against renal ischemia-reperfusion injury, yet the mechanisms involved are largely unknown, and HIF-mediated renoprotection has not been examined in other causes of AKI. Here, we show that selective activation of HIF in renal tubules, through Pax8-rtTA–based inducible knockout of von Hippel-Lindau protein (VHL-KO), protects from rhabdomyolysis-induced AKI. In this model, HIF activation correlated inversely with tubular injury. Specifically, VHL deletion attenuated the increased levels of serum creatinine/urea, caspase-3 protein, and tubular necrosis induced by rhabdomyolysis in wild-type mice. Moreover, HIF activation in nephron segments at risk for injury occurred only in VHL-KO animals. At day 1 after rhabdomyolysis, when tubular injury may be reversible, the HIF-mediated renoprotection in VHL-KO mice was associated with activated glycolysis, cellular glucose uptake and utilization, autophagy, vasodilation, and proton removal, as demonstrated by quantitative PCR, pathway enrichment analysis, and immunohistochemistry. In conclusion, a HIF-mediated shift toward improved energy supply may protect against acute tubular injury in various forms of AKI. PMID:23970125

Fähling, Michael; Mathia, Susanne; Paliege, Alexander; Koesters, Robert; Mrowka, Ralf; Peters, Harm; Persson, Pontus Börje; Neumayer, Hans-Hellmut; Bachmann, Sebastian

2013-01-01

339

Instrumentation for Studies of Cochlear Mechanics: From von Békésy forward  

PubMed Central

Georg von Békésy designed the instruments needed for his research. He also created physical models of the cochlea allowing him to manipulate the parameters (such as volume elasticity) that could be involved in controlling traveling waves. This review is about the specific devices that he used to study the motion of the basilar membrane thus allowing the analysis that lead to his Nobel Prize Award. The review moves forward in time mentioning the subsequent use of von Békésy’s methods and later technologies important for motion studies of the organ of Corti. Some of the seminal findings and the controversies of cochlear mechanics are mentioned in relation to the technical developments. PMID:22975360

Nuttall, Alfred L; Fridberger, Anders

2012-01-01

340

von Willebrand’s disease diagnosis and laboratory issues  

PubMed Central

Summary In this paper, the recent developments in the diagnosis and laboratory issues of von Willebrand’s disease (VWD) are presented. Dr. Castaman reviews the functional tests available for the diagnosis of VWD and their pathophysiological significance, focusing on which tests are best used in the diagnosis and classification of VWD. Dr Montgomery reviews an emerging issue that is accelerated clearance of von Willebrand factor (VWF) occurring in some variants of VWD. This phenotype can be suspected by the presence of an increased ratio between the VWF propeptide and the VWF antigen. These patients have typically a robust, but short-lived increase of FVIII and VWF after desmopressin. Dr Meschengieser reviews the determinants of bleeding after surgery in patients with VWD, emphasizing the role of bleeding history in predicting this risk. PMID:20590859

CASTAMAN, G.; MONTGOMERY, R. R.; MESCHENGIESER, S. S.; HABERICHTER, S. L.; WOODS, A. I.; LAZZARI, M. A.

2015-01-01

341

Diagnosis of von Willebrand disease in South Island, New Zealand.  

PubMed

New Zealand is a small country of two islands and 4 million people, of which 1 million reside in the South Island. Canterbury Health Laboratories provides laboratory services to the whole of South Island and lower parts of North Island. There are 155 Von Willebrand disease (VWD) patients in our South Island database, of which 17 have type 2 and 3 have type 3 VWD. A brief overview of diagnostic services for VWD being followed in our region is detailed in this article. We strive continually to advance the repertoire of diagnostic tests. We also present an analysis of our experience with a flow-based functional Von Willebrand factor assay. The VWD patients are managed by hemostasis team members, who also provide screening and educational input to affected families. The Haemophilia Foundation of New Zealand is an active patient support group providing education and support both directed individually and in the group setting, through residential educational camps. PMID:22102199

Rajagopal, Rajeev; Smith, Mark P

2011-07-01

342

Dr. Wernher Von Braun at the launch of Apollo 11.  

NASA Technical Reports Server (NTRS)

Mission officials relax, all smiles, a few moments after the successful launch of the Apollo 11 spacecraft by Saturn V vehicle AS-506. Relieved of the tension of waiting through the countdown are (left to right) Charles W. Matthews, NASA deputy associate administrator for manned space flight; Dr. Wernher Von Braun, Director of the Marshall Space Flight Center; Dr. George E. Meuller, NASA associate administrator for manned spaceflight, and Lt. General Samuel C. Phillips, director of the Apollo program.

1999-01-01

343

Integrierte Unternehmensplanung zur Steuerung von Projekt und Periode — Ein Vorgehensmodell  

Microsoft Academic Search

Zum Begriff der „integrierten Unternehmensplanung“ sind unterschiedliche Definitionen zu finden. Im folgenden Artikel wird\\u000a unter einer integrierten Unternehmensplanung die Zusammenfassung aller Teilplanungen eines Unternehmens zur Darstellung eines\\u000a Unternehmensergebnisses verstanden. Implementierungsmethoden und Anwendungsbeispiele für eine erfolgreiche Einführung von\\u000a ressort-, segment- oder produktübergreifenden Planungssystemen sind selten bzw. nicht vorhanden. Das im Nachfolgenden dargestellte\\u000a Vorgehensmodell zeigt den Weg zu einer erfolgreichen Implementierung eines

Rainer Hönemann; Stephan Niggemann

344

Novel functions of the von Hippel-Lindau tumor suppressor  

Microsoft Academic Search

In the research presented in this thesis we studied possible tumor suppressing activities of pVHL. A general introduction about tumor suppressing activities of the von Hippel-Lindau (VHL) tumor suppressor is summarized in Chapter 1. In Chapter 2, we identified that expression and activity of the transcription factor E2F1 is negatively regulated by pVHL in a HIFalpha-independent manner. The majority (around

D. A. Mans

2008-01-01

345

Haemostatic and replacement therapy in von Willebrand disease.  

PubMed

A variety of haemostatic agents can be helpful for patients with von Willebrand disease in case of bleeding. There are orally administered substances, such as tranexamic acid, oestrogens and prednisone; agents for topical or local use; and medicines for injection or infusion, including desmopressin, blood plasma products and recombinant activated factor VII. The choice depends on the type of haemorrhage, the severity of the disease, presence of inhibitors, availability and cost. Some of these aspects are reviewed here. PMID:23401901

Schulman, S

1999-05-01

346

Untersuchungen über die Biologie von Ustilago violacea (Pers.) Fuck  

Microsoft Academic Search

1.In einer einfachen Nährlösung zeigte der untersuchte Stamm von Ustilago violacea f. Melandrii nur mit Saponin als Kohlenstoffquelle einigermaßen befriedigendes Wachstum.2.Steigende Saponinkonzentrationen bis zu 5% üben keinen hemmenden Einfluß auf das Wachstum des Pilzes aus.3.Kohlenstoffquellen wie Arabinose, Sorbit, Mannit, Lävulose, Glucose, Mannose, Saccharose, Maltose und Salicin, die für sich allein und auch in Kombinationen unter sich für den Pilz ungenügend

S. Blumer

1937-01-01

347

The Radon-Nikodym theorem for von neumann algebras  

Microsoft Academic Search

Let ? be a faithful normal semi-finite weight on a von Neumann algebraM. For each normal semi-finite weight ? onM, invariant under the modular automorphism group ? of ?, there is a unique self-adjoint positive operatorh, affiliated with the sub-algebra of fixed-points for ?, such that ?=?(h·). Conversely, each suchh determines a ?-invariant normal semi-finite weight. An easy application of

Gert K. Pedersen; Masamichi Takesaki

1973-01-01

348

Experimental observation of von Kármán vortices during drop impact.  

PubMed

The observation of von Kármán type vortices during the impact of water droplets onto a pool of water is reported. Shadowgraph imaging and laser-sheet visualization are used to document these events. The appearance of these vortices occurs within theoretically predicted regions in a Reynolds-splash number parameter space. In addition, and also in agreement with theoretical predictions, smooth splashing, with vortices absent, is found for smaller Reynolds number. PMID:23214641

Castrejón-Pita, A A; Castrejón-Pita, J R; Hutchings, I M

2012-10-01

349

Wireless LAN Konfiguration von FAU-VPN unter Windows XP  

E-print Network

Wireless LAN Konfiguration von FAU-VPN unter Windows XP mit Cisco AnyConnect #12;04.10.2010 wlan Cisco AnyConnect 2.3.0254 Cisco IPSec 5.0.05.0290 Notebook DELL Latitude E4200 Windows Vista Enteprise Servicepack 2 WLAN-Chipsatz Intel WiFi Link 5100 AGN OpenVPN 2.1_rc19 Cisco AnyConnect 2.3.0254 Cisco IPSec 5

Fiebig, Peter

350

Wireless LAN Konfiguration von FAU-VPN unter Windows XP  

E-print Network

Wireless LAN Konfiguration von FAU-VPN unter Windows XP mit Cisco IPSec #12;04.10.2010 wlan Cisco AnyConnect 2.3.0254 Cisco IPSec 5.0.05.0290 Notebook DELL Latitude E4200 Windows Vista Enteprise Servicepack 2 WLAN-Chipsatz Intel WiFi Link 5100 AGN OpenVPN 2.1_rc19 Cisco AnyConnect 2.3.0254 Cisco IPSec 5

Fiebig, Peter

351

On the von Neumann reflection of shock waves  

NASA Astrophysics Data System (ADS)

Numerical results with the irregular reflection of weak shock waves are presented. Computations were performed by the Eulerian scheme of an explicit second-order Godunov type. This method is based on the combination of Piecewise Parabolic Method (PPM) developed by Colella with three stage Runge-Kutta time integration scheme. The various types of irregular shock reflection are presented. Especially the problem on the von Neumann reflection of weak shock waves is discussed.

Higashino, Fumio; Miura, Yoshiro; Wada, Yasuhiro; Ogawa, Satoru

1992-12-01

352

John von Neumann and Klaus Fuchs: an Unlikely Collaboration  

Microsoft Academic Search

I discuss the origin of the idea of making a fusion (hydrogen) bomb and the physics involved in it, and then turn to the design\\u000a proposed for one by the unlikely collaborators John von Neumann and Klaus Fuchs in a patent application they filed at Los\\u000a Alamos in May 1946, which Fuchs passed on to the Russians in March 1948,

Jeremy Bernstein

2010-01-01

353

Anwendung von Thionol, Thionolin und Thionin als titanometrische Indicatoren  

Microsoft Academic Search

Die Verbindungen Thionol, Thionolin und Thionin sind als Indicatoren für visuelle Titrationen mit Titan(III) unter den in der Arbeit angegebenen Bedingungen geeignet. Die Ergebnisse der Titration von K2Cr2O7, FeCl3, AuCl3, NH4VO3, H2[PtCl6], K3[Fe(CN)6] und OsO4 sind angegeben.

E. Ruži?ka; J. Adámek

1963-01-01

354

Die hypopeltaten Sepalen von Viola arvensis und Viola mirabilis  

Microsoft Academic Search

Zusammenfassung Die Sepalen vonViola arvensis undViola mirabilis und möglicherweise allerViola-Arten sind, wie die Untersuchungen der äußeren Morphologie, der Ontogenie, der Histogenie und der Bündelmorphologie ergeben, hypopeltat-schildförmige bzw.-schlauchförmige Blätter, deren dorsale Querzone zu dem basalen Anhängsel auswächst. Durch diesen Spreitenbau, der beiViola nur bei den Kelchblättern auftritt, erweisen sich diese als laminale Kelchblätter.

Irmgard Jäger

1963-01-01

355

Heat equation on the arithmetic von Koch snowflake  

Microsoft Academic Search

.   We investigate the asymptotic behaviour of the heat content as the time t? 0 for an s-adic von Koch snowflake generated by a square. We show that the heat content satisfies a functional equation which, after\\u000a appropriate transformations, takes the form of an inhomogeneous renewal equation. We obtain the structure of the solution\\u000a of this equation in the arithmetic

M. van den Berg

2000-01-01

356

Beiträge zur Frage der Wirtsfindung des Miracidiums von Fasciola Hepatica  

Microsoft Academic Search

1.Die Miracidien von Fasciola hepatica sind (positiv) rheotaktisch.2.Sie zeigen positive oder negative Chemotaxis je nach der Natur der im Wasser gelösten Stoffe. Bestimmte Stoffe wirken aktivitätssteigernd (stimulierend).3.Die optischen Reaktionen sind topisch in gleichmäßig beleuchteten Bezirken, phobisch an einer Hell-Dunkelgrenze. Bei schwachen und mittleren Intensitäten sind die Tiere positiv phototaktisch, bei hohen Lichtintensitäten dagegen negativ phototaktisch.4.Aus 12–16 cm Entfernung werden die

Walter Neuhaus

1941-01-01

357

Philipp Frank, Richard von Mises, and the Frank-Mises  

Microsoft Academic Search

.  The theoretical physicist Philipp Frank (1884–1966) and the applied mathematician Richard von Mises (1883–1953) both received\\u000a their university education in Vienna shortly after 1900 and became friends at the latest during the Great War.They were attached\\u000a to the Vienna Circle of Logical Positivists and wrote an influential two-part work on the differential and integral equations\\u000a of mechanics and physics, the

Reinhard Siegmund-Schultze

2007-01-01

358

Über die Körpertemperaturen und den Wärmehaushalt von Apis mellifica  

Microsoft Academic Search

Die Körpertemperaturen von Bienen (Apis mellifica) wurden an Einzeltieren innerhalb und außerhalb des sozialen Verbandes mit Thermoelementen geringer Wärmekapazität (2,68·10-6 cal·grd-1) und unwesentlicher Wärmeableitung (3,5·10-7 cal·grd-1·sec-1) bestimmt. Bei der Sammeltätigkeit liegt die Thoraxtemperatur der Tänzerinnen außerhalb des Stockes durchschnittlich 10° über der Umgebung. Im Stock hat sie einen etwas höheren Betrag. Bei Erreichen einer Temperaturzone um 36° tritt eine Regulation

Harald Esch

1960-01-01

359

Dr. von Braun In Front of a Display of Missiles  

NASA Technical Reports Server (NTRS)

In this photo, Director of the US Army Ballistic Missile Agency (ABMA) Development Operations Division, Dr. Wernher von Braun, is standing before a display of Army missiles celebrating ABMA's Fourth Open House. The missiles in the background include (left to right) a satellite on a Juno II shroud with a Nike Ajax pointing left in front of a Jupiter missile. The Lacrosse is in front of the Juno II. The Nike Hercules points skyward in front of the Juno II and the Redstone.

1960-01-01

360

Von eingebetteten Systemen zu Cyber-Physical Systems  

Microsoft Academic Search

\\u000a Das Hauptanliegen des Papiers ist, ein Paradigma für Probleme mit neuartigen Integrationsanforderungen für Forschung und Entwicklung\\u000a in verteilten eingebetteten Echtzeitsystemen zu motivieren und vorzustellen, nämlich den Begriff Cyber-Physical Systems. Bei\\u000a einer in letzter Zeit stark zunehmenden Anzahl von Realzeitanwendungen können ohne die Berücksichtigung solcher Forderungen\\u000a keine praktisch brauchbaren Lösungen erwartet werden. Einige Anwendungsfelder werden angesprochen. Im Einzelnen werden dann\\u000a für

Rorst F. Wedde; Sebastian Lehnhoff; Christian Rehtanz; Olav Krause

2009-01-01

361

The British Interplanetary Society - Val Cleaver and Wernher von Braun  

NASA Astrophysics Data System (ADS)

This article is concerned with the early relationship between Wernher von Braun and the British Interplanetary Society (BIS). The BIS/Wernher von Braun/Val Cleaver correspondence files located here at the US Space & Rocket Center in Huntsville, Alabama are unparalleled. As one reads the stimulating comments between Cleaver and von Braun, the need to share their thoughts prevails. Following is an excerpt from one letter that whets ones appetite for more. 10 June 1951 Cleaver writes, “I'm so glad you enjoyed my last letter, and look forward to your promised further contribution to our discussion of the ethics of science in general and astronautics in particu- lar. As regards the one particular point on which you found yourself unable to hold your fire, I should say there are really two distinct issues at stake:. . .” This article attempts to represent the best of the letters as they goad each other on scientific principles, means to prevent wars, and other philosophic ideas.

Willhite, I. P.

362

Astronomische Kupferstiche von Gottfried Teuber für Erhard Weigel  

NASA Astrophysics Data System (ADS)

Zum Spektrum nichtverbaler Zeugnisse aus der Geschichte der Wissenschaften zählen auch die zahlreichen bildhaften Dokumente, auf denen die Objekte der wissenschaftlichen Untersuchung festgehalten sind, darunter auch die Kupferstiche (später Fotografien), die den astronomischen Büchern und Schriften beigegeben worden sind. Welcher wissenschaftshistorisch relevante Informationsgehalt ist nun solchen nichtverbalen Zeugnissen neben dem künstlerischen Aspekt der Illustration des Textes zuzubilligen? In Form einer Fallstudie soll im Vortrag ein bisher wenig beachteter Aspekt einer Antwort auf diese Frage angerissen werden. Im Rahmen dieser Fallstudie werden einige Kupferstiche aus dem Himmels=Zeiger`` von Erhard W eigel (1625-1699) vorgestellt, seit 1653 Professor für Mathematik an der Universität Jena und maßgeblicher Initiator der Kalenderreform in den protestantischen Ländern von 1699. Die in diesen Stichen enthaltenen Informationen können grob in drei Gruppen eingeteilt werden: A Aussagen zur Astronomie (dargestellte Himmelserscheinung), B Aussagen zur Drucktechnik (und künstlerischen Gestaltung), C Aussagen zur Biographie (des Herstellers bzw. Auftraggebers). Meines Erachtens ist der Aspekt C in der Historiographie bisher nicht erkannt worden. Hierauf soll mit einem Beispiel aufmerksam gemacht werden, wobei es um die Biographien von zwei Personen geht: die des Buchautors (Weigel) und die des Herstellers des Kupferstiches (Gottfried Teuber). Die Auswertung des Beispiels zeigt, daß durch Beachtung der sonst unauffällig erscheinenden Hersteller eines Kupferstiches Ansatzpunkte gefunden werden können, um Material für die noch unzureichend erforschte Beziehung zwischen den Gelehrten aus der ersten Reihe und deren Gehilfen aufzuspüren.

Herbst, Klaus-Dieter

363

Acquired Von Willebrand's Syndrome in Systemic Lupus Erythematosus  

PubMed Central

Acquired von Willebrand syndrome (AVWS) is an uncommon, underdiagnosed, and heterogeneous disease which is increasingly recognized as a cause of bleeding diatheses. Systemic lupus erythematosus (SLE) is an infrequent cause of AVWS. Herein, we report a case of AVWS diagnosed during the initial presentation of SLE in a previously healthy young man with no family history of bleeding diathesis who presented with worsening epistaxis, gastrointestinal bleeding, and anasarca. He was found to have severe anemia and prolonged activated partial thromboplastin time (aPTT) with severely decreased levels of von Willebrand factor (VWF) measurements in addition to markedly decreased factor VIII levels. Further evaluation revealed nephrotic syndrome and interstitial lung disease due to SLE. He initially received combination therapy with intravenous immunoglobulin (IVIG) and von Willebrand factor/factor VIII concentrates without significant improvement. Treatment with steroids, cyclophosphamide, and rituximab was followed by clinical improvement evidenced by cessation of bleeding. The short follow-up did not allow us to definitely prove the therapeutic effect of immunosuppressive treatment on AVWS in SLE patients. This case adds to the literature supporting the relationship between AVWS and SLE and highlights the importance of combination therapy in the treatment of severe AVWS as well as the role of IVIG, cyclophosphamide, and rituximab in AVWS associated with SLE. PMID:25544909

Strakhan, Marianna; Gralla, Richard J.; Reed, Louis J.

2014-01-01

364

Laboratory identification of von Willebrand disease: technical and scientific perspectives.  

PubMed

The correct diagnosis and classification of von Willebrand disease (von Willebrand disorder; vWD) is crucial because the presenting biological activity of von Willebrand factor (vWF) determines both the hemorrhagic risk and subsequent clinical management. Many laboratory assays are employed, given that assay limitations and vWD heterogeneity results in no single test being able detect all forms of vWD. Minimal laboratory identification requires assessments of vWF:antigen, factor (F) VIII:coagulant activity, and functional vWF (using vWF:ristocetin cofactor activity and vWF:collagen-binding activity). Tests to help subclassify vWD include ristocetin-induced platelet aggregation, vWF:multimers, and vWF:FVIII binding assays. New diagnostic developments are now influencing vWD diagnosis, including advancements in methodologies, automation, new platelet function analyzers, genetic mutational analysis, and a better understanding of therapeutic pharmacokinetics. This review focuses on the current recommended laboratory process for investigation of vWD from a practical scientific technical laboratory perspective. Selection of appropriate combination test panels and testing sequence is crucial for the proper diagnosis and classification of congenital vWD. PMID:16862518

Favaloro, Emmanuel J

2006-07-01

365

Acquired Von Willebrand's Syndrome in Systemic Lupus Erythematosus.  

PubMed

Acquired von Willebrand syndrome (AVWS) is an uncommon, underdiagnosed, and heterogeneous disease which is increasingly recognized as a cause of bleeding diatheses. Systemic lupus erythematosus (SLE) is an infrequent cause of AVWS. Herein, we report a case of AVWS diagnosed during the initial presentation of SLE in a previously healthy young man with no family history of bleeding diathesis who presented with worsening epistaxis, gastrointestinal bleeding, and anasarca. He was found to have severe anemia and prolonged activated partial thromboplastin time (aPTT) with severely decreased levels of von Willebrand factor (VWF) measurements in addition to markedly decreased factor VIII levels. Further evaluation revealed nephrotic syndrome and interstitial lung disease due to SLE. He initially received combination therapy with intravenous immunoglobulin (IVIG) and von Willebrand factor/factor VIII concentrates without significant improvement. Treatment with steroids, cyclophosphamide, and rituximab was followed by clinical improvement evidenced by cessation of bleeding. The short follow-up did not allow us to definitely prove the therapeutic effect of immunosuppressive treatment on AVWS in SLE patients. This case adds to the literature supporting the relationship between AVWS and SLE and highlights the importance of combination therapy in the treatment of severe AVWS as well as the role of IVIG, cyclophosphamide, and rituximab in AVWS associated with SLE. PMID:25544909

Taveras Alam, Sara; Alexis, Karenza; Sridharan, Ashwin; Strakhan, Marianna; Elrafei, Tarek; Gralla, Richard J; Reed, Louis J

2014-01-01

366

Licht als Stimulationsfaktor in der Biotopwahl von Katzendrosseln (Dumetella carolinensis, Mimidae)  

Microsoft Academic Search

Zusammenfassung Laboruntersuchungen zur Bedeutung von Lichtintensität und Lichtintensitätsunterschieden auf die Biotopwahl von Katzendrosseln ergaben, verglichen mit anderen Parametern (Blattgröße, Blattform), nur schwache Vorzugswahlen. Diese Ergebnisse stützen die These, daß insulare (Bermuda-)Populationen vonDumetella carolinensis weitere, weniger stereotyp festgelegte ökologische Nischen besiedeln als Festlands-Populationen der Art. Die möglichen Hinweise, daß sowohl hohe als auch besonders niedere Lichtintensitätsunterschiede die Wahl des Vogels beeinflussen,

Hans Oelke; Peter H. Klopfer

1970-01-01

367

Der Differenzierungsgrad von Chondrozyten und ihre Vorbehandlung mit „platelet-derived-growth-factor“  

Microsoft Academic Search

Zusammenfassung  \\u000a Derzeitige Methoden für die gesicherte Reparation von artikulären Knorpeldefekten sind noch nicht etabliert. In der vorliegenden\\u000a Studie habe wir das Potential von artikulären Knorpelzellen, perichondralen Zellen und Zellen der costochondralen Ruhezone\\u000a untersucht, neuen Knorpel zu bilden, nachdem diese Zellen in resorbierbare Gewebeträger inkorporiert und in Muskelpouche von\\u000a Nacktmäusen implantiert wurden. In-vitro-Studien haben gezeigt, dass der „platelet derived growth factor-BB“

C. H. Lohmann; Z. Schwartz; G. G. Niederauer; B. D. Boyan

2000-01-01

368

Programa Final Programa Fin* A Obra e o Legado de John von Neumann  

E-print Network

legado do matem'atico h'ungaro- americano John von Neumann (1903-1957), cientista e pensador que ____________________________________________________________________________* *___________ A Obra e o Legado de John von Neumann Instituto de Matem'atica e Estat'istica, USP jogos, a an'alise num'erica e a meteorologia. Al'em da presen,ca do irm"ao de John von Neumann, o

Kohayakawa, Yoshiharu

369

Heimüberwachung („home monitoring“) von Kindern und Jugendlichen: Vorschläge für die praktische Anwendung  

Microsoft Academic Search

Zusammenfassung  Umfangreiche ambulante Betreuungsstrukturen, immer leistungsfähigere Technik und nicht zuletzt das Bedürfnis von Eltern, auch\\u000a chronisch kranke Kinder im häuslichen Milieu betreuen zu wollen, stellt an Heimüberwachungssysteme höhere Anforderungen.\\u000a \\u000a Schwierigkeiten bereiten Indikationsstellung, Dauer der Anwendung sowie die Auswahl der jeweils benötigten Geräte.\\u000a \\u000a \\u000a Die vorliegende Leitlinie zur Heimüberwachung von Kindern und Jugendlichen wurde im Sinne von formal bewerteten („evidence level“) Aussagen der

T. Erler; U. Beyer; B. Hoch; G. Jorch; K. Klementz; A. Kramer; E. Paditz; C. F. Poets; L. Wessel; A. Wiater

2009-01-01

370

Die Bedeutung der Gaußschen Normalverteilung für Struktur, Sorption und Rheologie von Holz  

Microsoft Academic Search

Zusammenfassung  Die Eigenschaften von Lebewesen werden durch eine Reihe von ueren Umstnden beeinflut, die im wesentlichen entweder frdernd\\u000a oder hemmend sein knnen Mathematisch lt sich die Verteilung von Wahrscheinlichkeiten durch ein Binom darstellen. Einen\\u000a berblick darber liefern Staffelbilder, die im Fall einer statistischen Verteilung in eine Gausche Glockenkurve bergehen.\\u000a Bereits der belgische Statistiker Quetelet und Sir Francis Galton zeigten da die

Franz Kollmann

1965-01-01

371

Von Sympathisanten und Kollateralschäden. Die bleibende Bedeutung des „zu interessierenden Dritten“ für den transnationalen Terrorismus  

Microsoft Academic Search

Zusammenfassung  Anders als von Herfried Münkler konstatiert ist eine für die Botschaften irregulärer Gewaltakteure empfängliche und unterstützungswillige\\u000a Öffentlichkeit auch für das Terrornetzwerk Al-Qaida von zentraler Bedeutung. Die in den vergangenen Jahren zu beobachtende\\u000a Intention der Terroristen, eine Maximierung materieller Schäden und von Todesopfern in der Zivilbevölkerung herbeizuführen,\\u000a belegt keineswegs das Fehlen jeglicher politischer Zielsetzungen. Sie ist vielmehr das Ergebnis einer bewussten

Christoph Schwarz; Ralph Rotte

2010-01-01

372

Früh- und Differentialdiagnose von Parkinson-Syndromen unter besonderer Berücksichtigung des Steele-Richardson-Olszewski-Syndroms.  

E-print Network

??In der Differentialdiagnose von Parkinson-Syndromen wurden in frühen und in fortgeschrittenen Stadien insgesamt 138 Patienten mit der Verdachtsdiagnose eines Morbus Parkinson und mit der Verdachtsdiagnose… (more)

Arnold, Guy

2001-01-01

373

Der Einsatz von Lactoferrin und Epigallocatechingallat in der Prophylaxe parodontaler Erkrankungen der Katze.  

E-print Network

??Parodontopathien sind die am häufigsten vorkommenden Erkrankungen von Hund und Katze. Vor allem bei Katzen beschränken sich Prophylaxemaßnahmen häufig auf eine wiederholte Plaque- und Zahnsteinentfernung… (more)

Gorissen, Sonja

2004-01-01

374

Archetypische Vaterfiguren bei Ingeborg Bachmann unter besonderer Berücksichtigung der Rezeption von C. G. Jung.  

E-print Network

??Die Arbeit analysiert in ausgewählten Texten aus dem „Todesarten“-Zyklus von Ingeborg Bachmann das Verhältnis der weiblichen Hauptpersonen zu den Vaterfiguren. Dabei spielt Carl Gustav Jungs… (more)

Moser, Florian Johannes

2010-01-01

375

Über die Verwendung mikrochemischer Nachweise in der Metallographie. I. Mitteilung: Die richtige Erkennung von Schwefelseigerungen  

Microsoft Academic Search

Zusammenfassung  1. Der mikrochemische Sulfidnachweis mittels der Jod-Azidreaktion nachF. Feigl ermöglicht die Identifizierung auch von Spuren von Sulfidschwefel sowohl im Abdruckverfahren nachE. Heyn undO. Bauer als auch in jenem vonR. Baumann.\\u000a \\u000a 2. Der positive Ausfall der Sulfidreaktion nachFeigl an den schwarzen und gelben Flecken, die bei Ausführung eines Sublimatabduruckes erhalten werden, beweisen einwandfrei das\\u000a Vorliegen von sulfidisch gebundenem Schwefel.\\u000a \\u000a \\u000a \\u000a 3. Phosphide

M. Nießner

1930-01-01

376

Spektroskopische und thermodynamische Untersuchungen zur Komplexierung von trivalentem Curium mit anorganischen Liganden bei erhöhten Temperaturen.  

E-print Network

??Die vorliegende Dissertation beschäftigt sich mit der Komplexierung von dreiwertigen Actiniden bei erhöhten Temperaturen. Die Motivation der Arbeit ist es, ein besseres Verständnis der geochemischen… (more)

Skerencak, Andrej

2010-01-01

377

Untersuchungen zur Anatomie und Histologie des Verdauungstrakts von Thamnophis sirtalis sirtalis unter spezieller Berücksichtigung der Drüsen.  

E-print Network

??Die vorgelegte Arbeit beschreibt die spezielle Anatomie und Histologie des Verdauungstrakts von Thamnophis sirtalis sirtalis als Prototyp einer aktiv jagenden Schlange. Hierfür wurden 9 Strumpfbandnattern… (more)

Teschner, Katja

2009-01-01

378

Untersuchungen zur Regulation des Tryptophan-abhängigen Sekundärmetabolismus von Malassezia furfur.  

E-print Network

??Malassezia-Hefen, Teil der residenten Hautflora, gelten als Erreger der PV. Untersucht wurden Auswirkungen des Aminostickstoffmilieus auf Wachstum, Morphologie und Sekundärmetabolismus von M. furfur. Nach Primärkultur… (more)

Barchmann, Thorsten Dieter

2010-01-01

379

Auswirkungen von Delta-9-tetrahydrocannabinol und standardisiertem Cannabisextrakt auf den interhemisphäriellen Transfer.  

E-print Network

??Hintergrund: Eine verbesserte intermanuelle Koordination beim alternierenden Fingertapping von Schizophreniepatienten wird als Ausdruck eines veränderten interhemisphäriellen Transfers angesehen. Die derzeitig diskutierte Beteiligung des endogenen Cannabinoidsystems… (more)

Weinberg, Gordon

2008-01-01

380

Pharmakokinetik von Capecitabin in der Dreifachkombinations-Chemotherapie mit Oxaliplatin und Cetuximab.  

E-print Network

??In der vorliegenden Diplomarbeit analysierten wir Blutproben von Patienten, die aufgrund eines Kolorektalkarzinoms mit Xeloda® therapiert wurden. Die Behandlung erfolgte mittels CCB, das in Kombination… (more)

Klebermass, Eva-Maria

2013-01-01

381

Einsatz von Bone-morphogenetic Protein7 (BMP7) in der Behandlung von Pseudarthrosen der oberen und unteren Extremität  

Microsoft Academic Search

„Bone-morphogenetic Proteins“ (BMP) sind Knochenwachstumsfaktoren, die osteoinduktiv wirken. Seit 1992 kann BMP-7 als rekombinantes humanes (rh) Protein gentechnisch hergestellt werden. Nachdem tierexperimentelle und klinische Studien gezeigt hatten, dass rhBMP-7 die Neubildung von Knochen in ossären Defekten und Pseudarthrosen induziert, ist es seit 2001 in Europa zugelassen. Die Osteoinduktion ist in etwa so effektiv wie eine autologe Spongiosaplastik, jedoch ohne die

M. Diefenbeck; F. Wagner; T. Mückley; G. O. Hofmann

2005-01-01

382

Quantitative genetics of intraspecies hybrids.  

PubMed

Quantitative genetics generally is based on the properties of the randomly fertilized (RF) population or inbred derivatives of it. Simple hybrids and hybrid swarms do not conform to this model; and only some properties of hybrid means appear to have been available. In this paper, several genetical properties are derived, including genotype and allele frequencies, genotypic variance, broad-sense heritability, and outbreeding coefficient. The earlier mean is confirmed, and hybrid vigour is examined critically. These results make it possible to evaluate quantitatively both natural selection and forward selection (in plant breeding) from hybrids. An important finding is that hybrids with maximum hybrid vigour do not maximize genetic advance from forward selection, i.e. evolution is unlikely to enhance hybrid vigour. Another finding is that the concepts of additive genetic variance and narrow-sense heritability are inappropriate for hybrids, owing to the genetic disequilibrium inherent from their origin, and to the ephemeral nature of their population structure. PMID:10651921

Gordon, I L

1999-12-01

383

Quantitative nuclear magnetic resonance spectrometry  

Microsoft Academic Search

The purities of the widely-used herbicide glyphosate (N-(phosphonomethyl)glycine), and the insecticide profenofos (O-(4-bromo-2-chlorophenyl) O-ethyl S-propyl phosphorothioate) were determined by 1H and 31P quantitative nuclear magnetic resonance (QNMR) spectrometry using an internal standard. QNMR does not need a standard reference of the same target analyte, in contrast to chromatographic methods, but only a compound containing the nucleus of interest. Sodium acetate

Tareq Saed Al Deen; D Brynn Hibbert; James M Hook; Robert J Wells

2002-01-01

384

Quantitative Evaluation Of Teleoperator Performance  

NASA Technical Reports Server (NTRS)

Report describes experiments on remote manual control of robotic manipulator. Experiments conducted to evaluate quantitatively relative effectiveness of several control modes: various combinations of position control, rate control, remote compliance, and feedback from force and torque sensors. Tasks evaluated: removing thermal blanket, unbolting electrical panel, and handling bundles of electrical wires and electrical connectors on simulated solar Max satellite by means of remotely controlled robot in teleoperation laboratory.

Das, Hari; Zak, Haya; Kim, Won S.; Bejczy, Antal K.; Schenker, Paul S.

1992-01-01

385

Defective dimerization of von Willebrand factor subunits due to a Cys-> Arg mutation in type IID von Willebrand disease.  

PubMed Central

The same heterozygous T -> C transition at nt 8567 of the von Willebrand factor (vWF) transcript was found in two unrelated patients with type III) von Willebrand disease, with no other apparent abnormality. In one family, both alleles were normal in the parents and one sister; thus, the mutation originated de novo in the proposita. The second patient also had asymptomatic parents who, however, were not available for study. The structural consequences of the identified mutation, resulting in the CyS2010 -> Arg substitution, were evaluated by expression of the vWF carboxyl-terminal domain containing residues 1366-2050. Insect cells infected with recombinant baculovirus expressing normal vWF sequence secreted a disulfide linked dimeric molecule with an apparent molecular mass of 150 kDa before reduction, yielding a single band of 80 kDa after disulfide bond reduction. In contrast, cells expressing the mutant fragment secreted a monomeric molecule of apparent molecular mass of 80 kDa, which remained unchanged after reduction. We conclude that CyS2010 is essential for normal dimerization of vWF subunits through disulfide bonding of carboxyl-terminal domains and that a heterozygous mutation in the corresponding codon is responsible for defective multimer formation in type III) von Willebrand disease. Images Fig. 1 Fig. 2 Fig. 4 PMID:8622978

Schneppenheim, R; Brassard, J; Krey, S; Budde, U; Kunicki, T J; Holmberg, L; Ware, J; Ruggeri, Z M

1996-01-01

386

Quantitative analysis of glycated proteins.  

PubMed

The proposed protocol presents a comprehensive approach for large-scale qualitative and quantitative analysis of glycated proteins (GP) in complex biological samples including biological fluids and cell lysates such as plasma and red blood cells. The method, named glycation isotopic labeling (GIL), is based on the differential labeling of proteins with isotopic [(13)C6]-glucose, which supports quantitation of the resulting glycated peptides after enzymatic digestion with endoproteinase Glu-C. The key principle of the GIL approach is the detection of doublet signals for each glycated peptide in MS precursor scanning (glycated peptide with in vivo [(12)C6]- and in vitro [(13)C6]-glucose). The mass shift of the doublet signals is +6, +3 or +2 Da depending on the peptide charge state and the number of glycation sites. The intensity ratio between doublet signals generates quantitative information of glycated proteins that can be related to the glycemic state of the studied samples. Tandem mass spectrometry with high-energy collisional dissociation (HCD-MS2) and data-dependent methods with collision-induced dissociation (CID-MS3 neutral loss scan) are used for qualitative analysis. PMID:24417557

Priego-Capote, Feliciano; Ramírez-Boo, María; Finamore, Francesco; Gluck, Florent; Sanchez, Jean-Charles

2014-02-01

387

Quantitative studies of immunofluorescent staining*  

PubMed Central

Reproducible titres of indirect immunofluorescent (IF) staining with antinuclear factor (ANF)-containing sera could be obtained with different antihuman IgG conjugates by quantitative adjustments of their characteristics. Conversely, one ANF yielded a broad range of ANF titre (80-640) upon appropriate adjustments of the conjugate characteristics. The same and related characteristics of the conjugates also afforded a basis for quantitatively defining the conditions under which non-specific staining (NSS) appeared. The salient characteristics of the anti-IgG conjugates include: (1) their strength of antiglobulin (expressed as units/ml of precipitating antibody or ?g antibody N/ml); (2) their apparent fluorescein concentration (in ?g F/ml); (3) their protein concentration (in mg/ml). Optical and immunologic sensitivity ratios are calculated from these conjugate characteristics. Optical sensitivity (expressed as fluorescein concentration to protein concentration (F/P) ratios), immunological sensitivities (expressed as units/1% protein) and the dilution employed serve to characterize quantitatively anti-IgG conjugates adequately to define their specific and non-specific staining properties. PMID:4179321

Beutner, Ernst H.; Sepulveda, Marion R.; Barnett, Eugene V.

1968-01-01

388

On Quantitative Software Verification Marta Kwiatkowska  

E-print Network

software. The lecture will give an overview of current research directions in quantitative softwareOn Quantitative Software Verification Marta Kwiatkowska Oxford University Computing Laboratory guided by counterexample traces [1]. The vast majority of software verification research to date has

Oxford, University of

389

Quantitative Estimation: One, Two, or Three Abilities?  

ERIC Educational Resources Information Center

Examines relationships among tests for numerosity, measurement, and computational estimation, and recognizes tests for numerical facility and quantitative reasoning using principal components analysis. Identifies two components. The first component aligned computational estimation with numerical facility and general quantitative reasoning while…

Hogan, Thomas P.; Brezinski, Kristen L.

2003-01-01

390

Quantitative artificial neural network for electronic noses  

Microsoft Academic Search

This paper reports a quantitative artificial neural network (ANN) to implement an electronic nose (enose). A new approach was proposed by the combination of ANN with fundamental aspects of analytical chemistry, especially with the concept of relative error (RE) in quantitative analysis. Thus, both the qualitative and quantitative requirements for ANN in implementing enose can be satisfied. Converging criterion while

Yu Lu; Liping Bian; Pengyuan Yang

2000-01-01

391

Expressiveness and Closure Properties for Quantitative Languages,  

E-print Network

Expressiveness and Closure Properties for Quantitative Languages, Krishnendu Chatterjee1 , Laurent automata with nu- merical weights on transitions. They can define quantitative languages L that assign about these quantitative languages. We first show that the set of words with value greater than

Doyen, Laurent

392

Quantitative Generalizations of Languages # Thomas A. Henzinger  

E-print Network

Quantitative Generalizations of Languages # Thomas A. Henzinger EPFL, Switzerland, and University languages, namely, the theory of the #­regular languages. There are two common, orthogonal quantitative generalizations of languages. In the first quantitative view, a language is a set of probability spaces on words

Henzinger, Thomas A.

393

A Quantitative Evaluation of Symmetry Detection Algorithms  

E-print Network

A Quantitative Evaluation of Symmetry Detection Algorithms Po-Chun Chen1 , James Hays2 , Seungkyu. This paper presents a sys- tematic, quantitative evaluation of rotation, reflection and translation sym-defined quantitative evaluation scheme for an effective validation and comparison of different symmetry detection

394

Quantitative Stochastic Parity Games Krishnendu Chatterjee  

E-print Network

Quantitative Stochastic Parity Games Krishnendu Chatterjee Marcin Jurdzi´nski Thomas A. Henzinger which a player has a strategy to win with probability 1 (or with positive probability). The quantitative polynomial-time algorithms both for the qualitative and the quantitative solution. The running time

Jurdziñski, Marcin

395

From Boolean to Quantitative Synthesis Pavol Cern  

E-print Network

From Boolean to Quantitative Synthesis Pavol Cerný IST Austria cernyp@ist.ac.at Thomas A in order for the program to meet the specification. In this paper, we argue that quantitative objectives objective that models performance. Other quantitative notions useful in synthesis include fault tolerance

Cerny, Pavol

396

Better Quality in Synthesis through Quantitative Objectives  

E-print Network

Better Quality in Synthesis through Quantitative Objectives Roderick Bloem1 , Krishnendu Chatterjee responses quickly but does not gen- erate unnecessary responses. We use quantitative properties to measure the "goodness" of an implementation. Using games with corresponding quantitative objectives, we can synthesize

Henzinger, Thomas A.

397

Expressiveness and Closure Properties for Quantitative Languages #,##  

E-print Network

Expressiveness and Closure Properties for Quantitative Languages #,## Krishnendu Chatterjee 1 are nondeterministic automata with nu­ merical weights on transitions. They can define quantitative languages L questions about these quantitative languages. We first show that the set of words with value greater than

Doyen, Laurent

398

Quantitative Generalizations of Languages Thomas A. Henzinger  

E-print Network

Quantitative Generalizations of Languages Thomas A. Henzinger EPFL, Switzerland, and University languages, namely, the theory of the -regular languages. There are two common, orthogonal quantitative generalizations of languages. In the first quantitative view, a language is a set of probability spaces on words

Henzinger, Thomas A.

399

Quantitative Analysis of Dynamic Network Protocols \\Lambda  

E-print Network

Quantitative Analysis of Dynamic Network Protocols \\Lambda Oded Goldreich y Amir Herzberg z Adrian Segall x January 3, 1994 Abstract We present a quantitative approach to the analysis of dynamic net­ work is `useful' only after some `warming up' period since it recovered. To compare the quantitative approach

Goldreich, Oded

400

RECENT ADVANCES IN QUANTITATIVE NEUROPROTEOMICS  

PubMed Central

The field of proteomics is undergoing rapid development in a number of different areas including improvements in mass spectrometric platforms, peptide identification algorithms and bioinformatics. In particular, new and/or improved approaches have established robust methods that not only allow for in-depth and accurate peptide and protein identification and modification, but also allow for sensitive measurement of relative or absolute quantitation. These methods are beginning to be applied to the area of neuroproteomics, but the central nervous system poses many specific challenges in terms of quantitative proteomics, given the large number of different neuronal cell types that are intermixed and that exhibit distinct patterns of gene and protein expression. This review highlights the recent advances that have been made in quantitative neuroproteomics, with a focus on work published over the last five years that applies emerging methods to normal brain function as well as to various neuropsychiatric disorders including schizophrenia and drug addiction as well as of neurodegenerative diseases including Parkinson’s disease and Alzheimer’s disease. While older methods such as two-dimensional polyacrylamide electrophoresis continued to be used, a variety of more in-depth MS-based approaches including both label (ICAT, iTRAQ, TMT, SILAC, SILAM), label-free (label-free, MRM, SWATH) and absolute quantification methods, are rapidly being applied to neurobiological investigations of normal and diseased brain tissue as well as of cerebrospinal fluid (CSF). While the biological implications of many of these studies remain to be clearly established, that there is a clear need for standardization of experimental design and data analysis, and that the analysis of protein changes in specific neuronal cell types in the central nervous system remains a serious challenge, it appears that the quality and depth of the more recent quantitative proteomics studies is beginning to shed light on a number of aspects of neuroscience that relates to normal brain function as well as of the changes in protein expression and regulation that occurs in neuropsychiatric and neurodegenerative disorders. PMID:23623823

Craft, George E; Chen, Anshu; Nairn, Angus C

2014-01-01

401

Quantitative biology of single neurons  

PubMed Central

The building blocks of complex biological systems are single cells. Fundamental insights gained from single-cell analysis promise to provide the framework for understanding normal biological systems development as well as the limits on systems/cellular ability to respond to disease. The interplay of cells to create functional systems is not well understood. Until recently, the study of single cells has concentrated primarily on morphological and physiological characterization. With the application of new highly sensitive molecular and genomic technologies, the quantitative biochemistry of single cells is now accessible. PMID:22915636

Eberwine, James; Lovatt, Ditte; Buckley, Peter; Dueck, Hannah; Francis, Chantal; Kim, Tae Kyung; Lee, Jaehee; Lee, Miler; Miyashiro, Kevin; Morris, Jacqueline; Peritz, Tiina; Schochet, Terri; Spaethling, Jennifer; Sul, Jai-Yoon; Kim, Junhyong

2012-01-01

402

High speed quantitative digital microscopy  

NASA Technical Reports Server (NTRS)

Modern digital image processing hardware makes possible quantitative analysis of microscope images at high speed. This paper describes an application to automatic screening for cervical cancer. The system uses twelve MC6809 microprocessors arranged in a pipeline multiprocessor configuration. Each processor executes one part of the algorithm on each cell image as it passes through the pipeline. Each processor communicates with its upstream and downstream neighbors via shared two-port memory. Thus no time is devoted to input-output operations as such. This configuration is expected to be at least ten times faster than previous systems.

Castleman, K. R.; Price, K. H.; Eskenazi, R.; Ovadya, M. M.; Navon, M. A.

1984-01-01

403

Elektronenmikroskopische Untersuchungen zur funktionellen Morphologie des Ionentransportes in der Salzdrüse von Larus argentatus  

Microsoft Academic Search

In Verbindung von analytisch-chemischen und elektronenmikroskopischen Präparationsmethoden konnten die intra vitam transportierten Na+- und Cl-I- onen im Gewebe der Salzdrüse von Larus argentatus während der Fixation gefällt werden. An der Lokalisation der Reaktionsprodukte und aus dem Vergleich ihrer Verteilung in den Zellen der aktiven und denen der inaktiven Salzdrüse wurden die Transportwege der Ionen ermittelt: Die Natriumionen werden im allgemeinen

Hans Komnick; Ute Komnick

1963-01-01

404

Über den Mechanismus der Wirkung von Licht auf die Hoden der Vögel (Passer domesticus)  

Microsoft Academic Search

Zusammenfassung 1.In der Zeit vom 1. Dezember 1934 bis zum 20. März 1935 wurden Versuche über die Wirkung von elektrischem Licht auf Sperlingsmännchen ausgeführt.2.Es wurden vier Versuchsserien angesetzt, in denen die Sperlinge in drei Käfige gesetzt wurden; die Käfige 1 und 2 wurden täglich von 5 bis 10 Uhr abends belichtet; Käfig 3 wurde während dieser Belichtung mit schwarzem Stoff

Sophie Ivanova

1935-01-01

405

NULL CONTROLLABILITY OF THE VON K ARM AN THERMOELASTIC PLATES UNDER  

E-print Network

NULL CONTROLLABILITY OF THE VON K ´ARM ´AN THERMOELASTIC PLATES UNDER THE CLAMPED OR FREE Controllability of the von Kármán Thermoelastic Plates Under the Clamped or Free Mechanical Boundary Conditions MECHANICAL BOUNDARY CONDITIONS By George Avalos IMA Preprint Series # 2008 ( November 2004 ) INSTITUTE

406

Gromutter Anna Pinner an Enkelin Ruth Alexander (Transkription von Karola Nick)  

E-print Network

Gro�mutter Anna Pinner an Enkelin Ruth Alexander (Transkription von Karola Nick) Charlottenburg, 11 Ruthchen, grüsse viel- mals Alexanders und sei selbst gegrüsst und geküsst von Deiner alten Ahnfrau Anna gelassen, garnicht, um meiner Freude über Deinen lieben Brief entsprechenden Ausdruck zu geben. So kann ich

Zeilberger, Doron

407

TOPOLOGICAL OPTIMIZATION OF STRUCTURES SUBJECT TO A VON MISES STRESS CONSTRAINT  

E-print Network

TOPOLOGICAL OPTIMIZATION OF STRUCTURES SUBJECT TO A VON MISES STRESS CONSTRAINT S. AMSTUTZ AND A functionals that leads to a pointwise constraint on the Von Mises stress field. The associated topological.A. NOVOTNY Abstract. The topological asymptotic analysis provides the sensitivity of a given shape functional

Samuel, Amstutz

408

76 FR 36166 - Culturally Significant Objects Imported for Exhibition; Determinations: “Gabriel von Max: Be...  

Federal Register 2010, 2011, 2012, 2013

...Gabriel von Max: Be-Tailed Cousins and Phantasms of the Soul'' SUMMARY: Notice is hereby given of the following determinations...Gabriel von Max: Be-Tailed Cousins and Phantasms of the Soul,'' imported from abroad for temporary exhibition within...

2011-06-21

409

Justus von Liebig (1803–1873): a chemist's contributions to anaesthesia  

Microsoft Academic Search

Justus von Liebig (1803–1873), one of the great 19th century chemists, did much basic work in chemistry. By applying the knowledge of organic chemistry to animal and human physiology and to agricultural science, he became the founder of physiological chemistry and agricultural chemistry. von Liebig is well known until today as inventor of “Liebig's Beef Extract” and chemical fertilizer. Through

W Schwarz; U. v Hintzenstern

2002-01-01

410

September 18, 2010, Champaign-Urbana,Illinois, USA Celebration for Diter Von Wettstein  

E-print Network

September 18, 2010, Champaign-Urbana,Illinois, USA Celebration for Diter Von Wettstein "Man är blek to Diter von Wettstein on receiving the 2009 Lifetime Achievement Award of the Rebeiz Foundation He Wettstein had once served as a Professor of Botany in Göttingen, then in Munich and as a Director

Govindjee "Gov"

411

An Alternative Perspective on von Winterfeldt et al.'s (1997) Test of Consequence Monotonicity  

ERIC Educational Resources Information Center

D. von Winterfeldt, N.-K. Chung, R. D. Luce, and Y. Cho (see record 1997-03378-008) provided several tests for consequence monotonicity of choice or judgment, using certainty equivalents of gambles. The authors reaxiomatized consequence monotonicity in a probabilistic framework and reanalyzed von Winterfeldt et al.'s main experiment via a…

Ho, Moon-Ho R.; Regenwetter, Michel; Niederee, Reinhard; Heyer, Dieter

2005-01-01

412

Eine einfache Vorrichtung zur Stromteilung am Ausgang von Glaskapillarsäulen hoher Trennleistung  

Microsoft Academic Search

Unter Verwendung von Glas- und Platinkapillaren läßt sich auf einfache Weise eine Vorrichtung herstellen, die sich für das Splitten des Gasstroms am Ausgang von Glaskapillarsäulen hoher Trennleistung vorzüglich eignet. Dieser Stromteiler ist mit einer Spülgazuleitung versehen, welche gestattet, das Splitverhätlnis in weiten Grenzen ohne Trennleistungsverluste kontinuierlich zu verändern.

F. Etzweiler; N. Neuner-Jehle

1973-01-01

413

Wilhelm von Hboldt and James Parkinson. An appraisal of observation and creativity  

Microsoft Academic Search

Wilhelm von Humboldt (1767–1835) was an educational reformer, a statesman serving Frederick William III, King of Prussia and a philologist, who influenced the contemporary linguist Chomsky. Moreover von Humbolt was a prolific writer, he kept up a substantial correspondence with family and a circle of acquaintances. His letters also contain references to his physical fitness. In the year of James

J. P. W. F. Lakke

1996-01-01

414

Zur Unterscheidung von Thamnobryum subserratum (Hook. ex Harv.) Nog. & Z. Iwats. und Thamnobryum neckeroides (Hook.)  

Microsoft Academic Search

Zusammenfassung: Die Unterschiede zwischen den jüngst in Europa nachgewiesenen Thamnobryum subserratum, welches unter diesem Namen aus Japan und als Th. allegheniense aus Nordamerika bekannt ist, sowie dem zuvor nur aus dem westlichen Nordamerika bekannten Thamnobryum neckeroides und dem heimischen Thamnobryum alopecurum sind nach der Literatur zusammengestellt und an Hand von Herbarmaterial illustriert. Die Variabilität von Thamnobryum alopecurum ist diskutiert. Abstract:

E. Lawton; Jan-Peter Frahm

415

Neufunde von Sycidium G. Sandberger (nova class., Charophyta?) aus dem Devon der Eifel  

Microsoft Academic Search

Zusammenfassung  Beschreibung vonSycidium volborthi eijelicum nov. subsp. undSycidium cf. reticulatum G. Sandberger aus dem Mittel-Devon. Der Nachweis von Poren führt zu einer erneuten Kurzdiskussion über die systematisch problematische\\u000a Stellung der Gruppe (Sycidiphyceae nova class.). Notizen zur Ökologie.

W. Langer Bonn

1976-01-01

416

großen Hitzeschockproteins von 70 kD nachgewiesen. Bei Milben-Weibchen und  

E-print Network

Milben. Gefördert durch die DFG (Ha 1625/3-2). Heatshock proteins in bees and mites Varroa jacobsoni. In dem untersuchten Zeitrahmen von 3 h fiel die maximale Expression von Hsp 70 bei Milben auf einer control by the biotech- nological procedure of hyperthermia is based on the fact that bees and mites

Paris-Sud XI, Université de

417

Is there a better non-parametric alternative to von Kries scaling?  

E-print Network

Is there a better non-parametric alternative to von Kries scaling? David H. Foster and Kamila scaling, but these predic- tions are not perfectly accurate. Here, a non-parametric method was used- ferences in degrees of freedom, the non-parametric model gave significantly better predictions than von

Foster, David H.

418

Von Willebrand factor: At the crossroads of bleeding and thrombosis Ccile V. Denis 1,2  

E-print Network

Von Willebrand factor: At the crossroads of bleeding and thrombosis Cécile V. Denis 1,2 and Peter J contributes to the role of VWF in hemorrhagic and thrombotic conditions (Figure 1). 2. VWF in Bleeding 2.1 Hereditary von Willebrand disease The discovery of VWF is intricately linked to the history of bleeding

Boyer, Edmond

419

In memory of Eugene (Jen?) von Gothard: a pioneering nineteenth century Hungarian astrophysicist  

NASA Astrophysics Data System (ADS)

Eugene von Gothard was a Hungarian engineer/scientist, instrument-maker and astrophysicist who founded the Herény Astrophysical Observatory in 1881 and carried out pioneering work in astronomical photography and spectroscopy. In this paper we provide biographical material about von Gothard and describe his observatory, before discussing his astronomical observations and the contribution that hemade to the early development of astrophysics.

Vincze, Ildik? J.; Jankovics, István

2012-07-01

420

Reevaluation of McCulloch-Pitts-von Neumann's clock.  

PubMed

In neuroscience research, a firing pattern expression, called a firing snapshot, defined by firing counts of multiple neurons in discrete time-bin is frequently used. However, the firing pattern expression over multiple neurons requires synchronization commonly known as a "central clock" in computation circuits to externally control or observe multi-neuron firing. Since it is not appropriate to hypothesize the central clock in the brain, we have to reconsider the synchronization assumption. We found the historical origins of central clock synchronization in the works of McCulloch, Pitts and von Neumann and propose an alternative perspective to study neural processing without the central clock. In the "First draft of a report on the EDVAC" known as the first proposal of store-program type computer, von Neumann incorporated McCulloch and Pitts' arbitrary assumption of constant synaptic delay into the logical circuit modeling. He introduced a constant pulse delay stabilized by a central clock to synchronize multiple pulse lines. This constant delay carried over to automaton theory by von Neumann and then theoretical neuroscience as an integral part of distributed representation and firing pattern analysis. Instead, we propose a rethinking of neuronal processing by focusing on a variable synaptic delay. We review neuron-type dependent differences and point out that the maximum inter-stimulus interval which can affect the last stimulus response is longer than the minimum inter-spike interval, indicating the possibility of asynchronous input summation without a firing rate level clock. This fundamental baseline contributes to the investigation of time consuming processes: e.g., the compression of appositional synaptic inputs with duration into a single firing. PMID:25458264

Ohta, Hiroyuki

2015-01-01

421

Orthopaedic surgery in patients with von Willebrand disease.  

PubMed

Patients with von Willebrand disease (VWD) may need orthopaedic surgery because of disabling chronic arthropathy due to recurrent joint bleeding. They may also require this surgery independently of their haemostasis disorder. Knowledge regarding the management of orthopaedic surgery in VWD is limited. Description of management of orthopaedic surgery in patients with VWD, based upon retrospective data collection and analysis of 32 orthopaedic procedures carried out over a period of 33 years in 23 patients was the aim of this study. Of 32 procedures, six were minor (three hand surgery, one foot surgery, two others) and 26 were major (seven joint replacements, nine arthroscopic procedures, two foot surgery, eight others). Twenty-two procedures were performed using replacement therapy with plasma-derived concentrates containing both factor VIII (FVIII) and von Willebrand factor (VWF). Two procedures in patients with acquired von Willebrand syndrome (AWVS) were performed using FVIII-VWF concentrates associated with intravenous immunoglobulins, or desmopressin plus tranexamic acid. Seven procedures were performed using desmopressin alone and one using intravenous immunoglobulins in AVWS. Bleeding complications occurred in seven procedures (22%). In one patient, an anti-VWF antibody was diagnosed after surgery. Anticoagulant prophylaxis of venous thromboembolism was implemented in four cases only and in two instances there was excessive bleeding. In conclusion, control of surgical haemostasis was achieved in most patients with VWD undergoing orthopaedic surgery. The control of haemostasis combined with an adequate surgical technique and early post-operative rehabilitation are warranted for the successful performance of orthopaedic surgery in VWD, which requires the involvement of specialized haemophilia centres. PMID:23992395

Siboni, S M; Biguzzi, E; Solimeno, L P; Pasta, G; Mistretta, C; Mannucci, P M; Peyvandi, F

2014-01-01

422

Semi-quantitative fluorescence analysis of calcein binding as a measurement of in vitro mineralization.  

PubMed

We describe a new, highly sensitive semiquantitative method for rapid measurement of in vitro mineralization using calcein. Fluorescence analysis of the calcein bound to the calcium phosphate (hydroxyapatite) allows direct quantitation of extracellular matrix mineral content in monolayer cultures of bone-forming cells such as primary osteoblasts or osteosarcoma cells. Osteosarcoma cell lines UMR 106 and SaOS-2 were used to demonstrate that qualitatively, calcein was bound to the same regions of the mineralized cell monolayer as seen by conventional histological staining with von Kossa or Alizarin Red S. Moreover, total bound calcein could be quantitated by direct fluorescence analysis using a Cytofluor II plate reader. Changes in cell monolayer calcein fluorescence were shown to correlate well with direct colorimetric measurement of acid-solubilized Ca+2 from parallel cultures. Relative mineral quantitation by calcein fluorescence is rapid and more sensitive than colorimetric Ca+2 assays, can be performed directly on unfixed or fixed cell monolayers, and does not require the use of radioisotopes. The cell monolayer remains intact and potentially available for further analysis. PMID:10908418

Hale, L V; Ma, Y F; Santerre, R F

2000-07-01

423

Hydrogelsysteme auf Basis UV-polymerisierbarer Biopolymere für den Aufbau von Gewebemimetika mittels Inkjet-Bioprinting am Beispiel von hyalinem Knorpel.  

E-print Network

??Gegenstand der Arbeit war die Darstellung von Biopolymer-basierten, gewebeähnlichen Hydrogelsystemen und deren Formulierung als Biotinten für das Inkjet-Bioprinting. Dafür wurden zwei Bestandteile der natürlichen extrazellulären… (more)

Hoch, Eva

2013-01-01

424

Echtzeitfhigkeit fr Mesh-Netzwerke in der Automatisierung Andre Herms, Otto-von-Guericke Univ. Magdeburg, Institut fr Verteilte Systeme  

E-print Network

Echtzeitfähigkeit für Mesh-Netzwerke in der Automatisierung Andre Herms, Otto-von-Guericke Univ. Magdeburg, Institut für Verteilte Systeme Georg Lukas, Otto-von-Guericke Univ. Magdeburg, Institut für Handhabbarkeit und höhere Ausfallsicherheit bringen Mesh-Netzwerke, die bereits von einigen Herstellern angeboten

425

Otto-von-Guericke Universitt Magdeburg Delft University of Technology Institut fr Verfahrenstechnik DelftChemTech  

E-print Network

Otto-von-Guericke Universität Magdeburg Delft University of Technology Institut für in Delft, the Netherlands. The research is performed during February-August 2008 at the Otto-von-Guericke, for a possibility to do my master thesis abroad. He contacted Prof. Tomas at the Otto-von-Guericke Universität

Luding, Stefan

426

Die Chromosomenzahlen von tschechoslowakischen Arten der Gattung Knautia L. ( Dipsacaceae )  

Microsoft Academic Search

Die Chromosomenzahlen von den tschechoslowakischen Sippen der GattungKnautia L. sind angegeben:K. drymeia\\u000a Heuffel subsp.drymeia—2n = 40 (41,42),K. slovaca\\u000a Št?pánek— 2n = 20,K. arvensis (L.)Coulter subsp.arvensis—2n = 20, 40 (39, 41),K. arvensis (L.)Coulter s. 1.—2n = 20,K. kitaibelii\\u000a (Schult.) Borbás—2n = 20 (39, 41),K. dipsacifolia\\u000a Kreutzer subsp.dipsacifolia—2n = 60,K. dipsacifolia agg.—2n = 40, 50, 60. Keine taxonomisch wertvolle morphologische Unterschiede zwischen

Jan Št?pánek

1982-01-01

427

Otto von Guericke and 17th century cosmology  

NASA Astrophysics Data System (ADS)

Otto von Guericke's scientific method was based on reason and experimental science. His cosmology was embedded in theology and can be interpreted as a refutation of Descartes' worldview. He used Nicolaus Cusanus' theory of quantities in order to characterize space. The notion of space has to be distinguished from that of world or heaven. Forces play a crucial role in this respect described by Athanasius Kircher in his "Celestial Journey". Guericke read this work very diligently. In spite of some obvious similarities between Guericke's and Newton's scientific aims and methods there are crucial differences between the scientific convictions and results of these scholars.

Knobloch, Eberhard

428

An inequality related to uncertainty principle in von Neumann algebras  

E-print Network

Recently Kosaki proved an inequality for matrices that can be seen as a kind of new uncertainty principle. Independently, the same result was proved by Yanagi, Furuichi and Kuriyama. The new bound is given in terms of Wigner-Yanase-Dyson informations. Kosaki himself asked if this inequality can be proved in the setting of von Neumann algebras. In this paper we provide a positive answer to that question and moreover we show how the inequality can be generalized to an arbitrary operator monotone function.

Paolo Gibilisco; Tommaso Isola

2008-04-16

429

von Kármán vortex street within an impacting drop.  

PubMed

The splashing of a drop impacting onto a liquid pool produces a range of different sized microdroplets. At high impact velocities, the most significant source of these droplets is a thin liquid jet emerging at the start of the impact from the neck that connects the drop to the pool. We use ultrahigh-speed video imaging in combination with high-resolution numerical simulations to show how this ejecta gives way to irregular splashing. At higher Reynolds numbers, its base becomes unstable, shedding vortex rings into the liquid from the free surface in an axisymmetric von Kármán vortex street, thus breaking the ejecta sheet as it forms. PMID:23004991

Thoraval, Marie-Jean; Takehara, Kohsei; Etoh, Takeharu Goji; Popinet, Stéphane; Ray, Pascal; Josserand, Christophe; Zaleski, Stéphane; Thoroddsen, Sigurdur T

2012-06-29

430

Karl Ernst von Baer (1792-1876) and evolution.  

PubMed

The research program of Karl Ernst von Baer (1792-1876) intended to enhance the comparative approach of animal classification by demonstrating vertebrate affinities (homology). Baer visualized his ideas on development and evolution with an unpublished figure of a branching tree. To buttress his reflections on how species-specific embryogenesis produces a branching tree, he worked out a cladogram-like chart, depicting the ontogeny and phylogeny of vertebrate embryos. For Baer, changes in development were responsible for changes in phenotype. I will offer a new interpretation of Baer's ideas about evolution showing that he believed in the transformation of species and announced such views publicly. PMID:23319342

Brauckmann, Sabine

2012-01-01

431

von Kármán Vortex Street within an Impacting Drop  

NASA Astrophysics Data System (ADS)

The splashing of a drop impacting onto a liquid pool produces a range of different sized microdroplets. At high impact velocities, the most significant source of these droplets is a thin liquid jet emerging at the start of the impact from the neck that connects the drop to the pool. We use ultrahigh-speed video imaging in combination with high-resolution numerical simulations to show how this ejecta gives way to irregular splashing. At higher Reynolds numbers, its base becomes unstable, shedding vortex rings into the liquid from the free surface in an axisymmetric von Kármán vortex street, thus breaking the ejecta sheet as it forms.

Thoraval, Marie-Jean; Takehara, Kohsei; Etoh, Takeharu Goji; Popinet, Stéphane; Ray, Pascal; Josserand, Christophe; Zaleski, Stéphane; Thoroddsen, Sigurdur T.

2012-06-01

432

[Gastrointestinal autonomic nerve tumor (GANT) associated with Von Recklinghausen's disease].  

PubMed

Here we describe a case of gastrointestinal autonomic nerve tumor (GANT) arosen in a patient with von Recklinghausen's disease. To the best of our knowledge, only four other similar cases have been previously reported in the literature. Histologically, the tumour was composed of spindle shaped cells arranged in short bundles. The neoplastic cells had pleomorphic nuclei and numerous mitoses. Immunohistochemical investigation displayed evidence of neural differentiation. Neoplastic cells were diffusely anti-synaptophysin, anti-neuron specific enolase and anti-vimentin positive. The clinicopathological features of the present case are described and discussed together with those of the other previously reported cases. PMID:10221001

Damiani, S; Schildkraut, P; Riguzzi, P; Biasiucci, A; Tardio, M L; Eusebi, V

1998-12-01

433

The Amalgamated Free Product of Hyperfinite von Neumann Algebras  

E-print Network

embedding, rst de ned by Dykema in [Dyk93]. De nition 15. Let A = L(Fr) and B = L(Fr0) for r nd a semicircular system ! = fXtgt2T and a copy of R, the hyper nite II1... The Amalgamated Free Product of Hyper nite von Neumann Algebras. (May 2012) Daniel Ernest Redelmeier, B.Math, University of Waterloo; M.Math, University of Waterloo Chair of Advisory Committee: Dr. Kenneth Dykema We examine the amalgamated free product...

Redelmeier, Daniel

2012-07-16

434

Richtlinien zur Vermeidung von Gender Bias in der Gesundheitsforschung  

Microsoft Academic Search

Zusammenfassung  Für die Gesundheitsforschung im deutschsprachigen Raum existieren, anders als in den USA und Kanada, bisher keine Richtlinien,\\u000a welche die angemessene Berücksichtigung geschlechtsspezifischer Belange definieren. Auf der Basis eines für das kanadische\\u000a Gesundheitsministerium erarbeiteten Leitfadens werden im Rahmen eines vom BMBF geforderten Public-Health-P rojekts entsprechende\\u000a Richtlinien für den deutschsprachigen Raum formuliert.\\u000a \\u000a Der Beitrag führt von der Definition der Arten geschlechtsspezzfischer Verzerrungseffekte

Margrit Eichler; Judith Fuchs; Ulrike Maschewsky-Schneider

2000-01-01

435

Teaching quantitative biology: goals, assessments, and resources.  

PubMed

More than a decade has passed since the publication of BIO2010, calling for an increased emphasis on quantitative skills in the undergraduate biology curriculum. In that time, relatively few papers have been published that describe educational innovations in quantitative biology or provide evidence of their effects on students. Using a "backward design" framework, we lay out quantitative skill and attitude goals, assessment strategies, and teaching resources to help biologists teach more quantitatively. Collaborations between quantitative biologists and education researchers are necessary to develop a broader and more appropriate suite of assessment tools, and to provide much-needed evidence on how particular teaching strategies affect biology students' quantitative skill development and attitudes toward quantitative work. PMID:25368425

Aikens, Melissa L; Dolan, Erin L

2014-11-01

436

Teaching quantitative biology: goals, assessments, and resources  

PubMed Central

More than a decade has passed since the publication of BIO2010, calling for an increased emphasis on quantitative skills in the undergraduate biology curriculum. In that time, relatively few papers have been published that describe educational innovations in quantitative biology or provide evidence of their effects on students. Using a “backward design” framework, we lay out quantitative skill and attitude goals, assessment strategies, and teaching resources to help biologists teach more quantitatively. Collaborations between quantitative biologists and education researchers are necessary to develop a broader and more appropriate suite of assessment tools, and to provide much-needed evidence on how particular teaching strategies affect biology students' quantitative skill development and attitudes toward quantitative work. PMID:25368425

Aikens, Melissa L.; Dolan, Erin L.

2014-01-01

437

Independent segregation of von Hippel-Lindau disease and cerebral cavernomas  

PubMed Central

A probable diagnosis of von Hippel-Lindau disease was made in a two generation family in which the proband had a phaeochromocytoma, renal cysts, and multiple cerebral cavernomas. His sister had multiple similar cerebral vascular lesions and his father died from renal carcinoma aged 42. Although the family did not satisfy the conventional diagnostic criteria for von Hippel-Lindau disease, an underlying germline mutation in the von Hippel-Lindau disease tumour suppressor gene was identified in the proband. Molecular genetic analysis not only confirmed the putative diagnosis of the disease in the proband but also showed that the cerebral vascular lesions segregated independently from the von Hippel-Lindau disease mutation. This report exemplifies how molecular genetic investigations can enhance the diagnosis and management of families with suspected von Hippel-Lindau disease, particularly when the manifestations, as in this family, are not typical.?? PMID:9408111

Webster, A.; Fisher, R.; Ginsberg, L.; Maher, E.

1997-01-01

438

Karl ernst von Baer's 'Uber Entwickelungsgeschichte der Thiere II' and its unpublished drawings.  

PubMed

In 1828 Karl Ernst von Baer (1792-1876) published his seminal Uber Entwickelungsgeschichte der Thiere. Beobachtung und Reflexion. In the preface he announced that a second volume with one copper plate would be finished 'in a few weeks'. However, it took nine years until the unfinished second volume was released, with four copperplates. In his 'Autobiography', von Baer did not clarify the reasons why he did not finish his research program of comparative embryology. The paper attempts to elucidate them, furnished by archival documents and von Baer's unpublished embryological drawings. Our sketch of a few figures will show that (1) von Baer searched for 'analogies' (homologies) as a unifying principle and (2) explained the mechanisms of embryogenesis by physiological reasoning (electromagnetism). The main objective is to show that technical problems in illustrating and conceptual difficulties impeded von Baer's ambitious research program. PMID:16302690

Tammiksaar, Erki; Brauckmann, Sabine

2004-01-01

439

Monte Carlo turbulence simulation using rational approximations to von Karman spectra  

NASA Technical Reports Server (NTRS)

Turbulence simulation is computationally much simpler using rational spectra, but turbulence falls off as f exp -5/3 in frequency ranges of interest to aircraft response and as predicted by von Karman's model. Rational approximations to von Karman spectra should satisfy three requirements: (1) the rational spectra should provide a good approximation to the von Karman spectra in the frequency range of interest; (2) for stability, the resulting rational transfer function should have all its poles in the left half-plane; and (3) at high frequencies, the rational spectra must fall off as an integer power of frequency, and since the -2 power is closest to the -5/3 power, the rational approximation should roll off as the -2 power at high frequencies. Rational approximations to von Karman spectra that satisfy these three criteria are presented, along with spectra from simulated turbulence. Agreement between the spectra of the simulated turbulence and von Karman spectra is excellent.

Campbell, C. W.

1986-01-01

440

Quantitative ultrasonic phased array imaging  

NASA Astrophysics Data System (ADS)

When imaging with ultrasonic phased arrays, what do we actually image? What quantitative information is contained in the image? Ad-hoc delay-and-sum methods such as the synthetic aperture focusing technique (SAFT) and the total focusing method (TFM) fail to answer these questions. We have shown that a new quantitative approach allows the formation of flaw images by explicitly inverting the Thompson-Gray measurement model. To examine the above questions, we have set up a software simulation test bed that considers a 2-D scalar scattering problem of a cylindrical inclusion with the method of separation of variables. It is shown that in SAFT types of imaging the only part of the flaw properly imaged is the front surface specular response of the flaw. Other responses (back surface reflections, creeping waves, etc.) are improperly imaged and form artifacts in the image. In the case of TFM-like imaging the quantity being properly imaged is an angular integration of the front surface reflectivity. The other, improperly imaged responses are also averaged, leading to a reduction in some of the artifacts present. Our results have strong implications for flaw sizing and flaw characterization with delay-and-sum images.

Engle, Brady J.; Schmerr, Lester W., Jr.; Sedov, Alexander

2014-02-01

441

Quantitative evaluation of Alzheimer's disease  

NASA Astrophysics Data System (ADS)

We propose a single, quantitative metric called the disease evaluation factor (DEF) and assess its efficiency at estimating disease burden in normal, control subjects (CTRL) and probable Alzheimer's disease (AD) patients. The study group consisted in 75 patients with a diagnosis of probable AD and 75 age-matched normal CTRL without neurological or neuropsychological deficit. We calculated a reference eigenspace of MRI appearance from reference data, in which our CTRL and probable AD subjects were projected. We then calculated the multi-dimensional hyperplane separating the CTRL and probable AD groups. The DEF was estimated via a multidimensional weighted distance of eigencoordinates for a given subject and the CTRL group mean, along salient principal components forming the separating hyperplane. We used quantile plots, Kolmogorov-Smirnov and ?2 tests to compare the DEF values and test that their distribution was normal. We used a linear discriminant test to separate CTRL from probable AD based on the DEF factor, and reached an accuracy of 87%. A quantitative biomarker in AD would act as an important surrogate marker of disease status and progression.

Duchesne, S.; Frisoni, G. B.

2009-02-01

442

Quantitative approaches to computational vaccinology.  

PubMed

This article reviews the newly released JenPep database and two new powerful techniques for T-cell epitope prediction: (i) the additive method; and (ii) a 3D-Quantitative Structure Activity Relationships (3D-QSAR) method, based on Comparative Molecular Similarity Indices Analysis (CoMSIA). The JenPep database is a family of relational databases supporting the growing need of immunoinformaticians for quantitative data on peptide binding to major histocompatibility complexes and to the Transporters associated with Antigen Processing (TAP). It also contains an annotated list of T-cell epitopes. The database is available free via the Internet (http://www.jenner.ac.uk/JenPep). The additive prediction method is based on the assumption that the binding affinity of a peptide depends on the contributions from each amino acid as well as on the interactions between the adjacent and every second side-chain. In the 3D-QSAR approach, the influence of five physicochemical properties (steric bulk, electrostatic potential, local hydrophobicity, hydrogen-bond donor and hydrogen-bond acceptor abilities) on the affinity of peptides binding to MHC molecules were considered. Both methods were exemplified through their application to the well-studied problem of peptides binding to the human class I MHC molecule HLA-A*0201. PMID:12067414

Doytchinova, Irini A; Flower, Darren R

2002-06-01

443

Quantitative risk assessment system (QRAS)  

NASA Technical Reports Server (NTRS)

A quantitative risk assessment system (QRAS) builds a risk model of a system for which risk of failure is being assessed, then analyzes the risk of the system corresponding to the risk model. The QRAS performs sensitivity analysis of the risk model by altering fundamental components and quantifications built into the risk model, then re-analyzes the risk of the system using the modifications. More particularly, the risk model is built by building a hierarchy, creating a mission timeline, quantifying failure modes, and building/editing event sequence diagrams. Multiplicities, dependencies, and redundancies of the system are included in the risk model. For analysis runs, a fixed baseline is first constructed and stored. This baseline contains the lowest level scenarios, preserved in event tree structure. The analysis runs, at any level of the hierarchy and below, access this baseline for risk quantitative computation as well as ranking of particular risks. A standalone Tool Box capability exists, allowing the user to store application programs within QRAS.

Weinstock, Robert M (Inventor); Smidts, Carol S (Inventor); Mosleh, Ali (Inventor); Chang, Yung-Hsien (Inventor); Swaminathan, Sankaran (Inventor); Groen, Francisco J (Inventor); Tan, Zhibin (Inventor)

2001-01-01

444

Quantitative Characterization of Nanostructured Materials  

SciTech Connect

The two-and-a-half day symposium on the "Quantitative Characterization of Nanostructured Materials" will be the first comprehensive meeting on this topic held under the auspices of a major U.S. professional society. Spring MRS Meetings provide a natural venue for this symposium as they attract a broad audience of researchers that represents a cross-section of the state-of-the-art regarding synthesis, structure-property relations, and applications of nanostructured materials. Close interactions among the experts in local structure measurements and materials researchers will help both to identify measurement needs pertinent to â??real-worldâ? materials problems and to familiarize the materials research community with the state-of-the-art local structure measurement techniques. We have chosen invited speakers that reflect the multidisciplinary and international nature of this topic and the need to continually nurture productive interfaces among university, government and industrial laboratories. The intent of the symposium is to provide an interdisciplinary forum for discussion and exchange of ideas on the recent progress in quantitative characterization of structural order in nanomaterials using different experimental techniques and theory. The symposium is expected to facilitate discussions on optimal approaches for determining atomic structure at the nanoscale using combined inputs from multiple measurement techniques.

Dr. Frank (Bud) Bridges, University of California-Santa Cruz

2010-08-05

445

Clinical Utility of Quantitative Imaging.  

PubMed

Quantitative imaging (QI) is increasingly applied in modern radiology practice, assisting in the clinical assessment of many patients and providing a source of biomarkers for a spectrum of diseases. QI is commonly used to inform patient diagnosis or prognosis, determine the choice of therapy, or monitor therapy response. Because most radiologists will likely implement some QI tools to meet the patient care needs of their referring clinicians, it is important for all radiologists to become familiar with the strengths and limitations of QI. The Association of University Radiologists Radiology Research Alliance Quantitative Imaging Task Force has explored the clinical application of QI and summarizes its work in this review. We provide an overview of the clinical use of QI by discussing QI tools that are currently used in clinical practice, clinical applications of these tools, approaches to reporting of QI, and challenges to implementing QI. It is hoped that these insights will help radiologists recognize the tangible benefits of QI to their patients, their referring clinicians, and their own radiology practice. PMID:25442800

Rosenkrantz, Andrew B; Mendiratta-Lala, Mishal; Bartholmai, Brian J; Ganeshan, Dhakshinamoorthy; Abramson, Richard G; Burton, Kirsteen R; Yu, John-Paul J; Scalzetti, Ernest M; Yankeelov, Thomas E; Subramaniam, Rathan M; Lenchik, Leon

2015-01-01

446

The von Neumann model of measurement in quantum mechanics  

SciTech Connect

We describe how to obtain information on a quantum-mechanical system by coupling it to a probe and detecting some property of the latter, using a model introduced by von Neumann, which describes the interaction of the system proper with the probe in a dynamical way. We first discuss single measurements, where the system proper is coupled to one probe with arbitrary coupling strength. The goal is to obtain information on the system detecting the probe position. We find the reduced density operator of the system, and show how Lüders rule emerges as the limiting case of strong coupling. The von Neumann model is then generalized to two probes that interact successively with the system proper. Now we find information on the system by detecting the position-position and momentum-position correlations of the two probes. The so-called 'Wigner's formula' emerges in the strong-coupling limit, while 'Kirkwood's quasi-probability distribution' is found as the weak-coupling limit of the above formalism. We show that successive measurements can be used to develop a state-reconstruction scheme. Finally, we find a generalized transform of the state and the observables based on the notion of successive measurements.

Mello, Pier A. [Instituto de Física, Universidad Nacional Autónoma de México, Apdo. Postal 20-364, 01000 México, D. F. (Mexico)

2014-01-08

447

von Willebrand factor, Jedi knight of the bloodstream.  

PubMed

When blood vessels are cut, the forces in the bloodstream increase and change character. The dark side of these forces causes hemorrhage and death. However, von Willebrand factor (VWF), with help from our circulatory system and platelets, harnesses the same forces to form a hemostatic plug. Force and VWF function are so closely intertwined that, like members of the Jedi Order in the movie Star Wars who learn to use "the Force" to do good, VWF may be considered the Jedi knight of the bloodstream. The long length of VWF enables responsiveness to flow. The shape of VWF is predicted to alter from irregularly coiled to extended thread-like in the transition from shear to elongational flow at sites of hemostasis and thrombosis. Elongational force propagated through the length of VWF in its thread-like shape exposes its monomers for multimeric binding to platelets and subendothelium and likely also increases affinity of the A1 domain for platelets. Specialized domains concatenate and compact VWF during biosynthesis. A2 domain unfolding by hydrodynamic force enables postsecretion regulation of VWF length. Mutations in VWF in von Willebrand disease contribute to and are illuminated by VWF biology. I attempt to integrate classic studies on the physiology of hemostatic plug formation into modern molecular understanding, and point out what remains to be learned. PMID:24928861

Springer, Timothy A

2014-08-28

448

Moyal's Characteristic Function, the Density Matrix and von Neumann's Idempotent  

E-print Network

In the Wigner-Moyal approach to quantum mechanics, we show that Moyal's starting point, the characteristic function $M(\\tau,\\theta)=\\int \\psi^{*}(x)e^{i(\\tau {\\hat p}+\\theta{\\hat x})}\\psi(x)dx$, is essentially the primitive idempotent used by von Neumann in his classic paper "Die Eindeutigkeit der Schr\\"odingerschen Operatoren". This paper provides the original proof of the Stone-von Neumann equation. Thus the mathematical structure Moyal develops is simply a re-expression of what is at the heart of quantum mechanics and reproduces exactly the results of the quantum formalism. The "distribution function" $F(X,P,t)$ is simply the quantum mechanical density matrix expressed in an $( X,P)$-representation, where $X$ and $P$ are the mean co-ordinates of a cell structure in phase space. The whole approach therefore clearly has little to do with classical statistical theories but is a consequence of a non-commutative nature of the theory.

Basil J. Hiley

2014-08-25

449

Decoherent histories for a particle coupled to a von Neumann apparatus  

E-print Network

Using the Gell-Mann and Hartle formalism of generalized quantum mechanics of closed systems, we study coarse-grained decoherent histories. The system under consideration is one-dimensional and consists of a particle coupled to a von Neumann apparatus that measures its position. The particle moves in a quadratic potential; in particular we consider a driven harmonic oscillator. The real line is divided into intervals of the same length, and coarse-grained histories are defined by the arithmetic average of the initial and final position of the particle to be within one of these intervals. The position of the pointer correlates with this arithmetic average. In addition a constant term is added to this average, which is a result of the presence of a driving force on the oscillator. We investigate decoherence for such histories via the decoherence functional for the particle-apparatus. An exact expression for this functional has been derived. If the particle or the pointer of the apparatus is in an exact position state initially, then exact decoherence ensues, and the relative probability for such histories is obtained. If the initial state of the particle, which is centered at some arbitrary point in the $x$-axis, is narrow compared to the width of the intervals on the~$x$-axis, then we obtain approximate decoherence. The same result follows if the initial state of the pointer is narrow. In these two situations, we evaluate expressions for the decoherence functional qualitatively and quantitatively. In the latter case we obtain the first two terms in an expansion in powers of the width of the initial state of the particle or the pointer respectively. Approximate relative probabilities can be assigned in this case, and we have obtained an expansion up to second order in powers of the width of the initial state for an expression for an upper bound of these probabilities.

Francesc S. Roig

2014-05-23

450

Quantitative bispectra from multifield inflation  

NASA Astrophysics Data System (ADS)

After simplifying and improving the non-Gaussian formalism we developed in previous work, we derive a quantitative expression for the three-point correlator (bispectrum) of the curvature perturbation in general multiple-field inflation models. Our result describes the evolution of non-Gaussianity on superhorizon scales caused by the nonlinear influence of isocurvature perturbations on the adiabatic perturbation during inflation. We then study a simple quadratic two-field potential and find that, when slow roll breaks down and the field trajectory changes direction in field space, the non-Gaussianity can become large. However, for the simple models studied to date, the magnitude of this non-Gaussianity decays away after the isocurvature mode is converted into the adiabatic mode.

Rigopoulos, G. I.; Shellard, E. P. S.; van Tent, B. J. W.

2007-10-01

451

Master's internship proposal A Theory of Quantitative Languages  

E-print Network

Master's internship proposal A Theory of Quantitative Languages Where : Laboratoire Sp view is limited and we advocate a richer notion of language and correctness, namely quantitative languages and quantitative correctness. From a mathematical standpoint, a quantitative language assigns

Doyen, Laurent

452

Recent Developments in Quantitative Proteomics  

PubMed Central

Proteomics is the study of proteins on a large scale, encompassing the many interests scientists and physicians have in their expression and physical properties. Proteomics continues to be a rapidly expanding field, with a wealth of reports regularly appearing on technology enhancements and scientific studies using these new tools. This review focuses primarily on the quantitative aspect of protein expression and the associated computational machinery for making large-scale identifications of proteins and their post-translational modifications. The primary emphasis is on the combination of liquid chromatography-mass spectrometry (LC-MS) methods and associated tandem mass spectrometry (LC-MS/MS). Tandem mass spectrometry, or MS/MS, involves a second analysis within the instrument after a molecular dissociative event in order to obtain structural information including but not limited to sequence information. This review further focuses primarily on the study of in vitro digested proteins known as bottom-up or shotgun proteomics. A brief discussion of recent instrumental improvements precedes a discussion on affinity enrichment and depletion of proteins, followed by a review of the major approaches (label-free and isotope-labeling) to making protein expression measurements quantitative, especially in the context of profiling large numbers of proteins. Then a discussion follows on the various computational techniques used to identify peptides and proteins from LC-MS/MS data. This review article then includes a short discussion of LC-MS approaches to three-dimensional structure determination and concludes with a section on statistics and data mining for proteomics, including comments on properly powering clinical studies and avoiding over-fitting with large data sets. PMID:20620221

Becker, Christopher H.; Bern, Marshall

2010-01-01

453

Quantitative behavior analysis and human values.  

PubMed

Many scientists believe that among the virtues of quantitative science are that its facts are free from personal, social, political, economic, and other cultural influences, or at least, if they are not, they should be. Radical behaviorism suggests, however, that a science of behavior must apply to peoples' everyday professional behaviors, including those of quantitative behavior analysts. The behaviors of quantitative behavior analysts, however, like the behaviors of everyone else, depend on the cultures to which they belong. A quantitative science of behavior must therefore describe and explain the cultural and human values of quantitative behavior analysts. In this sense, a quantitative science of behavior must apply to itself. No such "reflexive behavior analysis" currently exists and its development might shed considerable light on the basic nature of behavior analysis. PMID:17418984

Shimp, Charles P

2007-06-01

454

Quantitative and Qualitative Research: Beyond the Debate  

Microsoft Academic Search

Psychology has been a highly quantitative field since its conception as a science. However, a qualitative approach to psychological\\u000a research has gained increasing importance in the last decades, and an enduring debate between quantitative and qualitative\\u000a approaches has arisen. The recently developed Mixed Methods Research (MMR) addresses this debate by aiming to integrate quantitative\\u000a and qualitative approaches. This article outlines

Omar Gelo; Diana Braakmann; Gerhard Benetka

2008-01-01

455

Answering Critical Questions Using Quantitative Data  

ERIC Educational Resources Information Center

Drawing on the work of several prominent scholars, the author describes the evolution of quantitative critical inquiry and compares this perspective to traditional research paradigms. (Contains 1 table.)

Stage, Frances K.

2007-01-01

456

Towards accurate imputation of quantitative genetic interactions  

E-print Network

Recent technological breakthroughs have enabled high-throughput quantitative measurements of hundreds of thousands of genetic interactions among hundreds of genes in Saccharomyces cerevisiae. However, these assays often ...

Krogan, Nevan J.

457

Efficacy and safety during formulation switch of a pasteurized VWF/FVIII concentrate: results from an Italian prospective observational study in patients with von Willebrand disease.  

PubMed

Von Willebrand disease (VWD) is an inherited bleeding disorder caused by the quantitative or qualitative deficiency of von Willebrand factor (VWF). Replacement therapy with plasma-derived VWF/factor VIII (FVIII) concentrates is required in patients unresponsive to desmopressin. To assess the efficacy, safety and ease of use of a new, volume-reduced (VR) formulation of VWF/FVIII concentrate Haemate(®) P in patients requiring treatment for bleeding or prophylaxis for recurrent bleeding or for invasive procedures. Pharmacoeconomic variables were also recorded. Data were analysed using descriptive statistics. This was a multicentre, prospective, observational study. Consecutively enrolled patients received Haemate(®) P VR according to their needs, and were followed for 24 months. Of the 121 patients enrolled, 25.6% had type 3 VWD and more than 40% had severe disease. All patients were followed for 2 years, for a total of 521 visits. On-demand treatment was given to 61.9% of patients, secondary long-term prophylaxis to 25.6% and prophylaxis for surgery, dental or invasive procedures to 45.5%. The response to treatment was rated as good to excellent in >93-99% of interventions. The new formulation was well tolerated by all patients with no report of drug-related adverse events. The switch to volume-reduced Haemate(®) P was easy to perform and infusion duration was decreased twofold compared with the previous formulation. Volume-reduced Haemate(®) P was at least as effective and well-tolerated as the previous formulation. PMID:22957493

Castaman, G; Coppola, A; Zanon, E; Boeri, E; Musso, M; Siragusa, S; Federici, A B; Mancuso, G; Barillari, G; Biasoli, C; Feola, G; Franchini, M; Moratelli, S; Gamba, G; Schinco, P; Valdrè, L; Dragani, A; Mazzucconi, G; Tagliaferri, A; Morfini, M

2013-01-01

458

Quantitative approach of speleothems fluorescence  

NASA Astrophysics Data System (ADS)

In this study, we propose a framework to interpret quantitatively the fluorescence of speleothems organic matter (OM) by the way of a bank of water-extracted organic matter. Due to its efficiency to described dissolved organic matter (DOM) characteritics, fluorescence has been used to determined DOM signatures in natural systems, water circulations, OM transfer from soils, OM evolution in soils or recently, DOM changes in engineered treatment systems. Fluorescence has also been used in speleothems studies, mainly as a growth indicator. Only few studies interpret it as an environmental proxy. Indeed, the fluorescence of OM provides information on the type of organic molecules trapped in speleothems and their evolutions. But the most direct information given by fluorescence is the variation of OM quantities. Actually, increase of fluorescence intensity is generally related to an increase in OM quantity but may also be induced by calcite optical effect or qualitative change of OM. However, analytical technics used in water environments cannot be used for speleothem samples. In this study we propose to give a frame to interpret quantitatively the fluorescence signal of speleothems. 3 different samples of stalagmites from french northern Prealps were used. To allow the quantification of the fluorescence signal, we need to measure the fluorescence and the quantity of organic matter on the same sample. OM of speleothems was extracted by an acid digestion method and analysed with a spectrofluorimeter. However, it was not possible to quantify directly the OM, as the extract solvant was a high-concentrated acid. To solve this problem, a calibration using soil extracts was realised. Soils were chosen in order to represent the diversity of OM present in the environment above the caves. Attention was focused on soil and vegetation types, and landuse. Organic material was water extracted from soils and its fluorescence was also measured. Total organic carbon was performed on the same samples. This allow to compare the two fluorescence signals. A range of OM concentrations can be then attributed to the speleothem signal. Fluorescence measurements were also realised on solid samples, using the MUESLI (Muesli Uses Emission Fluorescence for Line scanning and Imaging). Comparison with the two fluorescence signals, will evaluate the adaptability of the concentrations range for solid measurements, generally used. This method offers the possibility to associate a fluorescence signal on solid speleothem, with a non-destructive method, to an environmental range of organic carbon quantities.

Quiers, Marine; Perrette, Yves; Poulenard, Jérôme; Chalmin, Emilie; Revol, Morgane

2014-05-01

459

Superior mediastinal paraganglioma associated with von Hippel-Lindau syndrome: report of a case  

PubMed Central

Extra-adrenal pheochromocytomas are termed paragangliomas. Paragangliomas in the mediastinum, especially the superior mediastinum, are extremely rare. It is known that paragangliomas or pheochromocytomas occur in combination with von Hippel-Lindau syndrome. We present the case of a non-functional superior mediastinal paraganglioma in a patient with von Hippel-Lindau syndrome, without a familial history suggestive of the condition. This case highlights that we should be aware of possible sporadic von Hippel-Lindau syndrome in patients with a mediastinal paraganglioma. PMID:24678933

2014-01-01

460

On conjugate families and Jeffreys priors for von Mises–Fisher distributions  

PubMed Central

This paper discusses characteristics of standard conjugate priors and their induced posteriors in Bayesian inference for von Mises–Fisher distributions, using either the canonical natural exponential family or the more commonly employed polar coordinate parameterizations. We analyze when standard conjugate priors as well as posteriors are proper, and investigate the Jeffreys prior for the von Mises–Fisher family. Finally, we characterize the proper distributions in the standard conjugate family of the (matrix-valued) von Mises–Fisher distributions on Stiefel manifolds. PMID:23805026

Hornik, Kurt; Grün, Bettina

2013-01-01

461

Das Spannungsverhältnis von Zurückweisung und Ausweitung des Experiments nach Wundts einzelwissenschaftlicher Begründung der Psychologie  

Microsoft Academic Search

\\u000a Der Versuch Wilhelm Wundts, das methodische Instrumentarium seiner Psychologie als eine Synthese von induktiv-experimentellen\\u000a Verfahren (fü‚elementare‘ Prozesse) und von deduzierend-nichtexperimentellen Verfahren (fü‚höhere, ‚komplexe‘ Prozesse) zu\\u000a konzipieren, barg von vornherein die Gefahr in sich, die ‚Einheit‘ dieser ‚neuen Wissenschaft‘ zu sprengen. In der Tat zeichneten\\u000a sich schon bald nach der Schaffung der konzeptionellen und institutionellen Grundpfeiler (1873\\/74 Lehrbuch, 1879 Institut,\\u000a 1881\\/83

Georg Eckardt

462

Gesellschaft, Lebensgemeinschaft, Ökosystem - Über die Kongruenz von politischen und ökologischen Theorien der Entwicklung  

NASA Astrophysics Data System (ADS)

Im Jahr 1859 veröffentlichte Charles Darwin "On the Origin of Species“. Seine Evolutionstheorie ist das wohl spektakulärste Beispiel einer naturwissenschaftlichen Theorie großer gesellschaftlicher Relevanz. Ihre verschiedenen Facetten wurden in der Öffentlichkeit kontrovers diskutiert, unter anderem auch ihre Anwendung zur Erklärung von Zuständen und Prozessen menschlicher Gesellschaften. Zum Teil wurde die Seiensweise der Natur - scheinbar unabhängig von gesellschaftlichen Interessen - für die Erklärung und Legitimation gesellschaftlicher Zustände oder die Legitimation von politischen Ideologien herangezogen (Sozialdarwinismus). Denn Gesellschaft funktioniere ja so, wie Darwin die Natur erklärt habe: es herrsche z. B. Konkurrenzkampf, Auslese und Arbeitsteilung, Erfolg hätten diejenigen, die sich an die Bedingungen am Besten anpassten.

Voigt, Annette

463

Quantitative relationships in delphinid neocortex  

PubMed Central

Possessing large brains and complex behavioral patterns, cetaceans are believed to be highly intelligent. Their brains, which are the largest in the Animal Kingdom and have enormous gyrification compared with terrestrial mammals, have long been of scientific interest. Few studies, however, report total number of brain cells in cetaceans, and even fewer have used unbiased counting methods. In this study, using stereological methods, we estimated the total number of cells in the neocortex of the long-finned pilot whale (Globicephala melas) brain. For the first time, we show that a species of dolphin has more neocortical neurons than any mammal studied to date including humans. These cell numbers are compared across various mammals with different brain sizes, and the function of possessing many neurons is discussed. We found that the long-finned pilot whale neocortex has approximately 37.2 × 109 neurons, which is almost twice as many as humans, and 127 × 109 glial cells. Thus, the absolute number of neurons in the human neocortex is not correlated with the superior cognitive abilities of humans (at least compared to cetaceans) as has previously been hypothesized. However, as neuron density in long-finned pilot whales is lower than that in humans, their higher cell number appears to be due to their larger brain. Accordingly, our findings make an important contribution to the ongoing debate over quantitative relationships in the mammalian brain. PMID:25505387

Mortensen, Heidi S.; Pakkenberg, Bente; Dam, Maria; Dietz, Rune; Sonne, Christian; Mikkelsen, Bjarni; Eriksen, Nina

2014-01-01

464

A quantitative philology of introspection  

PubMed Central

The cultural evolution of introspective thought has been recognized to undergo a drastic change during the middle of the first millennium BC. This period, known as the “Axial Age,” saw the birth of religions and philosophies still alive in modern culture, as well as the transition from orality to literacy—which led to the hypothesis of a link between introspection and literacy. Here we set out to examine the evolution of introspection in the Axial Age, studying the cultural record of the Greco-Roman and Judeo-Christian literary traditions. Using a statistical measure of semantic similarity, we identify a single “arrow of time” in the Old and New Testaments of the Bible, and a more complex non-monotonic dynamics in the Greco-Roman tradition reflecting the rise and fall of the respective societies. A comparable analysis of the twentieth century cultural record shows a steady increase in the incidence of introspective topics, punctuated by abrupt declines during and preceding the First and Second World Wars. Our results show that (a) it is possible to devise a consistent metric to quantify the history of a high-level concept such as introspection, cementing the path for a new quantitative philology and (b) to the extent that it is captured in the cultural record, the increased ability of human thought for self-reflection that the Axial Age brought about is still heavily determined by societal contingencies beyond the orality-literacy nexus. PMID:23015783

Diuk, Carlos G.; Slezak, D. Fernandez; Raskovsky, I.; Sigman, M.; Cecchi, G. A.

2012-01-01

465

Quantitative relationships in delphinid neocortex.  

PubMed

Possessing large brains and complex behavioral patterns, cetaceans are believed to be highly intelligent. Their brains, which are the largest in the Animal Kingdom and have enormous gyrification compared with terrestrial mammals, have long been of scientific interest. Few studies, however, report total number of brain cells in cetaceans, and even fewer have used unbiased counting methods. In this study, using stereological methods, we estimated the total number of cells in the neocortex of the long-finned pilot whale (Globicephala melas) brain. For the first time, we show that a species of dolphin has more neocortical neurons than any mammal studied to date including humans. These cell numbers are compared across various mammals with different brain sizes, and the function of possessing many neurons is discussed. We found that the long-finned pilot whale neocortex has approximately 37.2 × 10(9) neurons, which is almost twice as many as humans, and 127 × 10(9) glial cells. Thus, the absolute number of neurons in the human neocortex is not correlated with the superior cognitive abilities of humans (at least compared to cetaceans) as has previously been hypothesized. However, as neuron density in long-finned pilot whales is lower than that in humans, their higher cell number appears to be due to their larger brain. Accordingly, our findings make an important contribution to the ongoing debate over quantitative relationships in the mammalian brain. PMID:25505387

Mortensen, Heidi S; Pakkenberg, Bente; Dam, Maria; Dietz, Rune; Sonne, Christian; Mikkelsen, Bjarni; Eriksen, Nina

2014-01-01

466

Dr. von Braun Standing by Five F-1 Engines  

NASA Technical Reports Server (NTRS)

A pioneer of America's space program, Dr. von Braun stands by the five F-1 engines of the Saturn V launch vehicle. This Saturn V vehicle is an actual test vehicle which has been displayed at the U.S. Space Rocket Center in Huntsville, Alabama. Designed and developed by Rocketdyne under the direction of the Marshall Space Flight Center, a cluster of five F-1 engines was mounted on the Saturn V S-IC (first) stage. The engines measured 19-feet tall by 12.5-feet at the nozzle exit and burned 15 tons of liquid oxygen and kerosene each second to produce 7,500,000 pounds of thrust. The S-IC stage is the first stage, or booster, of a 364-foot long rocket that ultimately took astronauts to the Moon.

2004-01-01

467

Die Cuticula von Polyxenus lagurus L. (Diplopoda, Pselaphognatha)  

Microsoft Academic Search

Zusammenfassung  \\u000a \\u000a \\u000a \\u000a 1. \\u000a \\u000a Die Cuticula vonPolyxenus lagurus (L. 1758) wurde histologisch, histochemisch und elektronenoptisch untersucht.\\u000a \\u000a \\u000a \\u000a \\u000a 2. \\u000a \\u000a Sie besteht aus zwei Schichten, einer inneren Endocuticula und einer nicht stark sklerotisierten Epicuticula.\\u000a \\u000a \\u000a \\u000a \\u000a 3. \\u000a \\u000a In der Epicuticula konnten keine Lipoide oder Lipoproteine nach gewiesen werden. Die Proteine werden durch phenolische Gruppen\\u000a gegerbt.\\u000a \\u000a \\u000a \\u000a \\u000a 4. \\u000a \\u000a Elektronenmikroskopische Aufnahmen zeigen eine homogene Textur der Epicuticula. Die Endocuticula ist

Gerhard Seifert

1967-01-01

468

ADAMTS13 and von Willebrand Factor in Thrombotic Thrombocytopenic Purpura.  

PubMed

Pathogenesis of thrombotic thrombocytopenic purpura (TTP) was a mystery for over half a century until the discovery of ADAMTS13. ADAMTS13 is primarily synthesized in the liver, and its main function is to cleave von Willebrand factor (VWF) anchored on the endothelial surface, in circulation, and at the sites of vascular injury. Deficiency of plasma ADAMTS13 activity (<10%) resulting from mutations of the ADAMTS13 gene or autoantibodies against ADAMTS13 causes hereditary or acquired (idiopathic) TTP. ADAMTS13 activity is usually normal or modestly reduced (>20%) in other forms of thrombotic microangiopathy secondary to hematopoietic progenitor cell transplantation, infection, and disseminated malignancy or in hemolytic uremic syndrome. Plasma infusion or exchange remains the initial treatment of choice to date, but novel therapeutics such as recombinant ADAMTS13 and gene therapy are under development. Moreover, ADAMTS13 deficiency has been shown to be a risk factor for the development of myocardial infarction, stroke, cerebral malaria, and preeclampsia. PMID:25587650

Zheng, X Long

2015-01-14

469

Beschiessung v. Reims durch die Armee des Generaloberst von Einem  

E-print Network

TRANSCRIPTION; MESSAGE: M. Lieben. Teile Euch nur eben mit, dass ich von Fritz heute eine Karte erhalten habe. Geschrieben am 8. ds. Mts. und abgestempelt am 10. ds. Mts. Ist also nicht lange unterwegs gewesen. Es geht Ihm noch gut. Hat bis jetzt...TRANSLATION; MESSAGE: My dears, just letting you know that I got a post card from Fritz today. Written on the 8th of this month, postmarked on the 10th. So not long in coming. He's still doing well. Still didn't get any package from me. Too bad! Otherwise nothing of importance. Did mother send my black and white dress yet? I'm okay, and you too I hope? Sincere greetings from your Gertrud Written in a hurry!; SENT TO: To Mr. [A.?] Hornseck, Dortmund, Kö rnebackstr. 1, (care of Aug. Klö nne Company). Dolberg, 14 April 1916....

Burger, J. [illustrator

2012-03-05

470

von Willebrand factor is a cofactor in complement regulation.  

PubMed

Several complement proteins interact with hemostatic factors. We discovered that von Willebrand factor (VWF) acts as a cofactor for factor I-mediated cleavage of complement C3b, thereby shutting down complement activation. The complement regulatory function of VWF multimers depends on their size. Smaller VWF multimers enhance cleavage of C3b but large and ultra-large VWF (ULVWF) multimers have no effect on C3b cleavage and permit default complement activation. We conclude that normal plasma VWF multimers prevent complement activation and steer the complement pathway toward generation of inactivated C3b (iC3b). ULVWF multimers, as are present in patients with thrombotic microangiopathy, lack an inhibitory effect on complement and permit complement activation. PMID:25395424

Feng, Shuju; Liang, Xiaowen; Kroll, Michael H; Chung, Dominic W; Afshar-Kharghan, Vahid

2015-02-01

471

[Carl Friedrich von Weizsäcker's design of a unity of physics].  

PubMed

As I learned in many conversations with Carl Friedrich von Weizsäcker, he saw his place in the history of science deriving from his "Theory of Urs". This theory will establish the unity of science on the basis of quantum bits. Any attempts to find some "fundamental bricks"--of whatever kind--must fail because of the antinomies of atomism. An abstract quantum bit is a structure quantum that cannot be conceived as a particle in space and time. However, it is clear, solely for logical reasons, that a quantum bit is an ultimate and indecomposable entity. Weizsäcker's revolutionary goal was--already 50 years ago--to unite quantum theory with cosmology and, on these grounds, proceed to a theory of elementary particles. The article gives a short overview of Weizsäcker's approach to the unity of physics, ending with a brief summary of what has been achieved in that endeavour up to now. PMID:24974600

Görnitz, Thomas

2014-01-01

472

[Carl Friedrich von Weizsäcker and the Society of German Scientists].  

PubMed

The Federation of German Scientists (VDW) was founded in 1959 as West-German pendant of the Federation of American Scientists and as West-German group of the Pugwah Conferences. From the beginning, Carl Friedrich von Weizsäcker played a leading role in the VDW and pleaded for influencing politicians by scientifically and politically uncontestable studies, in the 1960s mainly of the effects of nuclear war and world food affairs. These studies were conducted by a research institute in Hamburg funded by external funds, industry and banks. It was the nucleus of the "Max Planck Institute for living conditions of the technical-industrial world" founded in Starnberg in 1969. Due to a "super inheritance", the research institute was continued in addition to the Starnberg institute. Young Marxist social scientists published several studies here which the executive board of the VDW disapproved of. Numerous prominent members left the VDW, donations decreased rapidly. In 1975, the research institute was closed down. PMID:24974613

Bieber, Hans-Joachim

2014-01-01

473

Dynamo threshold detection in the von Kármán sodium experiment  

NASA Astrophysics Data System (ADS)

Predicting dynamo self-generation in liquid metal experiments has been an ongoing question for many years. In contrast to simple dynamical systems for which reliable techniques have been developed, the ability to predict the dynamo capacity of a flow and the estimate of the corresponding critical value of the magnetic Reynolds number (the control parameter of the instability) has been elusive, partly due to the high level of turbulent fluctuations of flows in such experiments (with kinetic Reynolds numbers in excess of 106). We address these issues here, using the von Kármán sodium experiment and studying its response to an externally applied magnetic field. We first show that a dynamo threshold can be estimated from analysis related to critical slowing down and susceptibility divergence, in configurations for which dynamo action is indeed observed. These approaches are then applied to flow configurations that have failed to self-generate magnetic fields within operational limits, and we quantify the dynamo capacity of these configurations.

Miralles, Sophie; Bonnefoy, Nicolas; Bourgoin, Mickael; Odier, Philippe; Pinton, Jean-François; Plihon, Nicolas; Verhille, Gautier; Boisson, Jean; Daviaud, François; Dubrulle, Bérengère

2013-07-01

474

VON MISES-FISHER MIXTURE MODEL OF THE DIFFUSION ODF  

PubMed Central

High angular resolution diffusion imaging (HARDI) permits the computation of water molecule displacement probabilities over the sphere. This probability is often referred to as the orientation distribution function (ODF). In this paper we present a novel model for representing this diffusion ODF namely, a mixture of von Mises-Fisher (vMF) distributions. Our model is compact in that it requires very few parameters to represent complicated ODF geometries which occur specifically in the presence of heterogeneous nerve fiber orientations. We present a Riemannian geometric framework for computing intrinsic distances (in closed-form) and for performing interpolation between ODFs represented by vMF mixtures. We also present closed-form equations for entropy and variance based anisotropy measures that are then computed and illustrated for real HARDI data from a rat brain. PMID:19759891

McGraw, Tim; Vemuri, Baba C.; Yezierski, Bob; Mareci, Thomas

2009-01-01

475

VON MISES-FISHER MIXTURE MODEL OF THE DIFFUSION ODF.  

PubMed

High angular resolution diffusion imaging (HARDI) permits the computation of water molecule displacement probabilities over the sphere. This probability is often referred to as the orientation distribution function (ODF). In this paper we present a novel model for representing this diffusion ODF namely, a mixture of von Mises-Fisher (vMF) distributions. Our model is compact in that it requires very few parameters to represent complicated ODF geometries which occur specifically in the presence of heterogeneous nerve fiber orientations. We present a Riemannian geometric framework for computing intrinsic distances (in closed-form) and for performing interpolation between ODFs represented by vMF mixtures. We also present closed-form equations for entropy and variance based anisotropy measures that are then computed and illustrated for real HARDI data from a rat brain. PMID:19759891

McGraw, Tim; Vemuri, Baba C; Yezierski, Bob; Mareci, Thomas

2006-01-01

476

[Reference relationships between human and animal in Hildegard von Bingen].  

PubMed

In "De animalibus", the 7th book in the "Liber simplicis medicinae", Hildegard von Bingen describes the characteristics of four-footed land animals. Some of these have a special relationship with humans in that they embody moral qualities. An explanation for this is already given in the preface, which states that human intelligence recognizes these qualities, declaring that "You are this or that sort of creature". Since the relationship that animals have with nature shares a degree of similarity with that of man's, they can be regarded as symbolic representatives for particular human traits and characteristics. The article at hand presents Hildegard von Bingen's descriptions of the monkey, the lion, the bear, the rabbit, the dog, the cat, the wolf, the lynx, and the donkey. While the monkey just mimics man's behaviour and is imperfect in both settings, the lion embodies will power. The bear on the other hand stands for unbridled sexual desire, while in the rabbit the gentleness of a sheep is united with the bounce of a deer. The lynx is regarded as hedonistic, the donkey as stupid, and the wolf as surrounded by dangerous sylphs. In Hildegard's depictions, exotic and native animal species display rather extraordinary behavioural traits, and the medieval Christian world view of the author conveys unexpected relationships between humans and animals. In addition to empirical observation and experience, Hildegard also relies on folkloristic beliefs and magical practices related to explanatory models of her time. She allows largely unknown sources into her animal lore but never strays from her ultimate goal of having it serve to instruct people. In doing so, Hildegard removed herself far from the common tradition of medieval animal portraits. PMID:23155757

Riethe, Peter

2012-01-01

477

Dynamics of Diffusion Flames in von Karman Swirling Flows Studied  

NASA Technical Reports Server (NTRS)

Von Karman swirling flow is generated by the viscous pumping action of a solid disk spinning in a quiescent fluid media. When this spinning disk is ignited in an oxidizing environment, a flat diffusion flame is established adjacent to the disk, embedded in the boundary layer (see the preceding illustration). For this geometry, the conservation equations reduce to a system of ordinary differential equations, enabling researchers to carry out detailed theoretical models to study the effects of varying strain on the dynamics of diffusion flames. Experimentally, the spinning disk burner provides an ideal configuration to precisely control the strain rates over a wide range. Our original motivation at the NASA Glenn Research Center to study these flames arose from a need to understand the flammability characteristics of solid fuels in microgravity where slow, subbuoyant flows can exist, producing very small strain rates. In a recent work (ref. 1), we showed that the flammability boundaries are wider and the minimum oxygen index (below which flames cannot be sustained) is lower for the von Karman flow configuration in comparison to a stagnation-point flow. Adding a small forced convection to the swirling flow pushes the flame into regions of higher strain and, thereby, decreases the range of flammable strain rates. Experiments using downward facing, polymethylmethacrylate (PMMA) disks spinning in air revealed that, close to the extinction boundaries, the flat diffusion flame breaks up into rotating spiral flames (refs. 2 and 3). Remarkably, the dynamics of these spiral flame edges exhibit a number of similarities to spirals observed in biological systems, such as the electric pulses in cardiac muscles and the aggregation of slime-mold amoeba. The tail of the spiral rotates rigidly while the tip executes a compound, meandering motion sometimes observed in Belousov-Zhabotinskii reactions.

Nayagam, Vedha; Williams, Forman A.

2002-01-01

478

John von Neumann and Klaus Fuchs: an Unlikely Collaboration  

NASA Astrophysics Data System (ADS)

I discuss the origin of the idea of making a fusion (hydrogen) bomb and the physics involved in it, and then turn to the design proposed for one by the unlikely collaborators John von Neumann and Klaus Fuchs in a patent application they filed at Los Alamos in May 1946, which Fuchs passed on to the Russians in March 1948, and which with substantial modifications was tested on the island of Eberiru on the Eniwetok atoll in the South Pacific on May 8, 1951. This test showed that the fusion of deuterium and tritium nuclei could be ignited, but that the ignition would not propagate because the heat produced was rapidly radiated away. Meanwhile, Stanislaw Ulam and C.J. Everett had shown that Edward Teller’s Classical Super could not work, and at the end of December 1950, Ulam had conceived the idea of super compression, using the energy of a fission bomb to compress the fusion fuel to such a high density that it would be opaque to the radiation produced. Once Teller understood this, he invented a greatly improved, new method of compression using radiation, which then became the heart of the Ulam-Teller bomb design, which was tested, also in the South Pacific, on November 1, 1952. The Russians have freely acknowledged that Fuchs gave them the fission bomb, but they have insisted that no one gave them the fusion bomb, which grew out of design involving a fission bomb surrounded by alternating layers of fusion and fission fuels, and which they tested on November 22, 1955. Part of the irony of this story is that neither the American nor the Russian hydrogen-bomb programs made any use of the brilliant design that von Neumann and Fuchs had conceived as early as 1946, which could have changed the entire course of development of both programs.

Bernstein, Jeremy

2010-03-01

479

Terminal Platelet Production is Regulated by Von Willebrand Factor  

PubMed Central

It is established that proplatelets are formed from mature megakaryocytes (MK) as intermediates before platelet production. Recently, the presence of proplatelets was described in blood incubated in static conditions. We have previously demonstrated that platelet and proplatelet formation is upregulated by MK exposure to high shear rates (1800 s?1) on immobilized von Willebrand factor (VWF). The purpose of the present study was to investigate whether VWF is involved in the regulation of terminal platelet production in blood. To this end, Vwf ?/? mice, a model of severe von Willebrand disease, were used to create a situation in which blood cells circulate in a vascular tree that is completely devoid of VWF. Murine platelets were isolated from Vwf ?/? and Vwf +/+ blood, exposed to VWF at 1800 s?1 in a microfluidic platform, and examined by means of videomicroscopy, as well as fluorescence and activation studies. Proplatelets became visible within 5 minutes, representing 38% of all platelets after 12 minutes and 46% after 28 min. The proportion of proplatelets was 1.8-fold higher in blood from Vwf?/? mice than from Vwf+/+ mice, suggesting a role of VWF in vivo. Fragmentation of these proplatelets into smaller discoid platelets was also observed in real-time. Platelets remained fully activatable by thrombin. Compensation of plasmatic VWF following hydrodynamic gene transfer in Vwf?/? mice reduced the percentage of proplatelets to wild-type levels. A thrombocytopenic mouse model was studied in the flow system, 7 days after a single 5-FU injection. Compared to untreated mouse blood, a 2-fold increase in the percentage of proplatelets was detected following exposure to 1800 s?1 on VWF of samples from mice treated with 5-FU. In conclusion, VWF and shear stress together appear to upregulate proplatelet reorganization and platelet formation. This suggests a new function for VWF in vivo as regulator of bloodstream thrombopoiesis. PMID:23737952

Poirault-Chassac, Sonia; Nguyen, Kim Anh; Pietrzyk, Audrey; Casari, Caterina; Veyradier, Agnes; Denis, Cecile V.; Baruch, Dominique

2013-01-01

480

The Complexity of Quantitative Information Flow Problems  

Microsoft Academic Search

In this paper, we investigate the computational complexity of quantitative information flow (QIF) problems. Information-theoretic quantitative relaxations of noninterfer- ence (based on Shannon entropy) have been introduced to enable more fine-grained reasoning about programs in situa- tions where limited information flow is acceptable. The QIF bounding problem asks whether the information flow in a given program is bounded by a

Pavol Cerný; Krishnendu Chatterjee; Thomas A. Henzinger

2011-01-01

481

Article de synthse Revue bibliographique quantitative  

E-print Network

— Quantitative review on the use of anabolic hormones in ruminants for meat pro- duction. 1. AnimalArticle de synthèse Revue bibliographique quantitative sur l'utilisation des hormones anabolisantes par ces hormones. Chez le mâle castré traité par des associations oestrogène/androgène et chez la

Boyer, Edmond

482

Using Popular Culture to Teach Quantitative Reasoning  

ERIC Educational Resources Information Center

Popular culture provides many opportunities to develop quantitative reasoning. This article describes a junior-level, interdisciplinary, quantitative reasoning course that uses examples from movies, cartoons, television, magazine advertisements, and children's literature. Some benefits from and cautions to using popular culture to teach…

Hillyard, Cinnamon

2007-01-01

483

Degree: Bachelor of Science Major: Quantitative Biology  

E-print Network

Degree: Bachelor of Science Major: Quantitative Biology The College of Arts and Sciences administers an interdisciplinary major pro- gram in Quantitative Biology leading to the Bachelor of Science degree. The major provides a strong background in mathematics, biology, chemistry and physics appro

Cakoni, Fioralba

484

Quantitative Literacy: A Science Literacy Perspective  

Microsoft Academic Search

I begin with a note of personal bias: I believe that the mathematics goals of the American Association for the Advancement of Science (AAAS) are closer to the quantitative literacy (QL) goals discussed in Mathematics and Democracy: The Case for Quantitative Literacy (Steen 2001) than either the goals of the new National Council of Teachers of Mathematics (NCTM) standards or

George D. Nelson

485

Table Reading Skills as Quantitative Literacy  

ERIC Educational Resources Information Center

The American Institutes for Research (2006) recently reported that 20% of U.S. students graduating from four-year colleges and universities and 30% of those completing two-year degrees have quantitative literacy skills at only a basic level. Sociologists are currently working on a variety of approaches to incorporate quantitative literacy into…

Wills, Jeremiah B.; Atkinson, Maxine P.

2007-01-01

486

Quantitative Aspects of Behaviour Network Verification  

E-print Network

Quantitative Aspects of Behaviour Network Verification Christopher Armbrust, Thorsten Ropertz, Lisa Kiekbusch, and Karsten Berns Robotics Research Lab, Department of Computer Science, University://rrlab.cs.uni-kl.de/ Abstract. This paper presents quantitative aspects of an approach for the modelling and verification

Berns, Karsten

487

On Bounding Problems of Quantitative Information Flow  

E-print Network

On Bounding Problems of Quantitative Information Flow Hirotoshi Yasuoka Tohoku University yasuoka@kb.ecei.tohoku.ac.jp Tachio Terauchi Nagoya University terauchi@is.nagoya-u.ac.jp February 2, 2012 Abstract Researchers have proposed formal definitions of quantitative informa- tion flow based on information theoretic notions

Banbara, Mutsunori

488

Features for Image Retrieval: A Quantitative Comparison  

E-print Network

Features for Image Retrieval: A Quantitative Comparison Thomas Deselaers, Daniel Keysers well-known features for image re- trieval are quantitatively compared and their correlation is analyzed systems was the QBIC system [4]. Other popular research sys- tems are BlobWorld [1], VIPER/GIFT [16

Deselaers, Thomas

489

Computational Revision of Quantitative Scienti c Models  

E-print Network

; Quantitative Model Revision 337 Like earlier research on computational scienti#12;c discovery, our general apComputational Revision of Quantitative Scienti#12;c Models Kazumi Saito, 1 Pat Langley, 2 Trond,grenagerg@cs.stanford.edu 3 Ecosystem Science and Technology Branch NASA Ames Research Center, MS 242-4 Mo#11;ett Field

Langley, Pat

490

A Quantitative Framework for Software Restructuring  

E-print Network

Research A Quantitative Framework for Software Restructuring BYUNG-KYOO KANG1 and JAMES M. BIEMAN2 introduce a quantitative framework for software restructuring. In the frame- work, restructuring decisions- surement and metrics; software design Contract grant sponsor: NASA Langley Research Center; Contract grant

Bieman, James M.

491

Applying Quantitative Marketing Techniques to the Internet  

E-print Network

Applying Quantitative Marketing Techniques to the Internet by Alan L. Montgomery Carnegie Mellon reserved #12;Abstract: Quantitative models have proved valuable in predicting consumer behavior. This is not the case. Many methods used in promotion, pricing, forecasting, and control in marketing research

Faloutsos, Christos

492

On Bounding Problems of Quantitative Information Flow  

E-print Network

. Researchers have attempted to formalize the definition of quantitative infor- mation flow by appealingOn Bounding Problems of Quantitative Information Flow Hirotoshi Yasuoka1 and Tachio Terauchi2 1. Researchers have proposed formal definitions of quantita- tive information flow based on information theoretic

Banbara, Mutsunori

493

PREPRINT 2007:20 A quantitative approach  

E-print Network

PREPRINT 2007:20 A quantitative approach for Polymerase Chain Reaction based on a Hidden Markov approach for Polymerase Chain Reaction based on a Hidden Markov Model Nadia Lalam Department vetenskaper Göteborg 2007 #12;A quantitative approach for Polymerase Chain Reaction based on a Hidden Markov

Patriksson, Michael

494

An Overview of Quantitative Risk Assessment of  

E-print Network

Challenger accident in 1986, NASA has begun incorporating QRA in decisions concerning the Space ShuttleAn Overview of Quantitative Risk Assessment of Space Shuttle Propulsion Elements Fayssal M. Safie of the application of the quantitative risk assessment (QRA) methods to the NASA Space Shuttle system. The NASA QRA

Christian, Eric

495

Quantitative photoacoustic imaging in radiative transport regime  

E-print Network

Quantitative photoacoustic imaging in radiative transport regime Alexander V. Mamonov Kui Ren July 6, 2012 Abstract The objective of quantitative photoacoustic tomography (QPAT) is to reconstruct inside the media. There have been extensive theoretical and com- putational studies on the inverse

Ren, Kui

496

Fehler begehen - Mathematik verstehen Über die Bedeutung von Fehlern für das Verstehen  

NASA Astrophysics Data System (ADS)

Auch wenn eine historisch oder systematisch umfassende Darstellung zur Fehlerthematik bislang nicht vorliegt, ist die Idee, einer Fehleranalyse unter der Leitfrage, welche Fehler von Schülerinnen und Schülern aufgrund welcher epistemologischen Überzeugungen begangen werden, zentralen Raum für die Betrachtung von Verstehensprozessen einzuräumen, nicht neu. So ist es geradezu ein Charakteristikum einer modernen konstruktivistischen Didaktik, die eigenen Fehler von Lernenden als ihre individuellen Lerngelegenheiten zu begreifen, die einen wichtigen Motor für den subjektiven Lernfortschritt bilden. Diese Sichtweise wurzelt aus psychologischer Perspektive in Analysen in der Tradition Piagets, der in Abkehr von einer quantitativen, psychometrischen Beschreibung kognitiver Prozesse, wie sie sich zum Beispiel in Intelligenztheorien nach Binet findet, qualitativ zu beschreiben versuchte, in welcher Weise Kinder und Jugendliche denken und urteilen. Doch auch schon in der klassischen Philosophie sind entsprechende Ansätze zu finden. Prominente Beispiele hierfür sind die Idolenlehre Bacons und die Ideenlehre Platons.

Käser, Udo

497

Rede des Prsidenten, Prof. Peter Gruss zur Festveranstaltung zum 150. Geburtstag von Max Planck  

E-print Network

Rede des Präsidenten, Prof. Peter Gruss zur Festveranstaltung zum 150. Geburtstag von Max Planck-PLANCK-GESELLSCHAFT Rede des Präsidenten #12;Präsidenten der European Physical Society, Herrn Kolwas. Auch mehrere

498

Über größenabhängige Änderungen von körperproportionen bei möwen (Larus ridibundus, L. canus, L. argentatus, L. marinus)  

Microsoft Academic Search

Zusammenfassung Die Skelette der Lachmöwe(Larus ridibundus), Sturmmöwe(Larus canus), Silbermöwe(Larus argentatus) und Mantelmöwe(Larus marinus) wurden so vermessen, daß gesicherte Schlüsse auf die statische Beanspruchung und Festigkeit von Extremitätenknochen und Schwungfedern gezogen werden können.

Lore Dinnendahl; Gustav Kramer

1957-01-01

499

Synthese von Edelmetallclustern auf S-Layern und deren katalytische Eigenschaften.  

E-print Network

??Bakterielle Zellhüllenproteine (S-Layer) können als formgebende Muster für die bottom-up Materialsynthese Verwendung finden. Auf S-Layern von Bacillus sphaericus und Sporosarcina ureae lassen sich nasschemisch Platin-… (more)

Kirchner, Alexander

2005-01-01

500

Diffusion und Phasenbildung bei der Abscheidung von Chalkopyritabsorbern auf transparenten oxidischen Leitern.  

E-print Network

??Bei der Abscheidung von Cu(In,Ga)Se2 auf transparenten oxidischen Leitern (TCOs) wie ZnO kommt es zu störender Interdiffusion und Fremdphasenbildung an der Grenzfläche. Als Modellsysteme wurden… (more)

Höpfner, Britta

2014-01-01