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Sample records for olga rastrigina ija

  1. IJA: an efficient algorithm for query processing in sensor networks.

    PubMed

    Lee, Hyun Chang; Lee, Young Jae; Lim, Ji Hyang; Kim, Dong Hwa

    2011-01-01

    One of main features in sensor networks is the function that processes real time state information after gathering needed data from many domains. The component technologies consisting of each node called a sensor node that are including physical sensors, processors, actuators and power have advanced significantly over the last decade. Thanks to the advanced technology, over time sensor networks have been adopted in an all-round industry sensing physical phenomenon. However, sensor nodes in sensor networks are considerably constrained because with their energy and memory resources they have a very limited ability to process any information compared to conventional computer systems. Thus query processing over the nodes should be constrained because of their limitations. Due to the problems, the join operations in sensor networks are typically processed in a distributed manner over a set of nodes and have been studied. By way of example while simple queries, such as select and aggregate queries, in sensor networks have been addressed in the literature, the processing of join queries in sensor networks remains to be investigated. Therefore, in this paper, we propose and describe an Incremental Join Algorithm (IJA) in Sensor Networks to reduce the overhead caused by moving a join pair to the final join node or to minimize the communication cost that is the main consumer of the battery when processing the distributed queries in sensor networks environments. At the same time, the simulation result shows that the proposed IJA algorithm significantly reduces the number of bytes to be moved to join nodes compared to the popular synopsis join algorithm. PMID:22319375

  2. Benchmarking the OLGA lower-hybrid full-wave code for a future integration with ALOHA

    NASA Astrophysics Data System (ADS)

    Preinhaelter, J.; Hillairet, J.; Urban, J.

    2014-02-01

    The ALOHA [1] code is frequently used as a standard to solve the coupling of lower hybrid grills to the plasma. To remove its limitations on the linear density profile, homogeneous magnetic field and the fully decoupled fast and slow waves in the determination of the plasma surface admittance, we exploit the recently developed efficient full wave code OLGA [2]. There is simple connection between these two codes, namely, the plasma surface admittances used in ALOHA-2D can be expressed as the slowly varying parts of the coupling element integrands in OLGA and the ALOHA coupling elements are then linear combinations of OLGA coupling elements. We developed AOLGA module (subset of OLGA) for ALOHA. An extensive benchmark has been performed. ALOHA admittances differ from AOLGA results mainly for N∥in the inaccessible region but the coupling elements differ only slightly. We compare OLGA and ALOHA for a simple 10-waveguide grill operating at 3.7 GHz and the linear density profile as it is used in ALOHA. Hence we can detect pure effects of fast and slow waves coupling on grill efficiency. The effects are weak for parameters near the optimum coupling and confirm the ALOHA results validity. We also compare the effect of the plasma surface density and the density gradient on the grill coupling determined by OLGA and ALOHA.

  3. Gastrites chroniques à hélicobacter pylori: évaluation des systèmes OLGA et OLGIM

    PubMed Central

    Slama, Sana Ben; Ghachem, Dorra Ben; Dhaoui, Amen; Jomni, Mohamed Taieb; Dougui, Mohamed Hédi; Bellil, Khadija

    2016-01-01

    La gastrite chronique à Helicobacter pylori (H pylori) présente un risque de cancérisation en rapport avec l'atrophie et la métaplasie intestinale. Deux nouvelles classifications, OLGA (Operative Link on Gastritis Assessment) et OLGIM (Operative Link on Gastritic Intestinal Metaplasia assessment) ont été proposées pour individualiser les formes à haut risque évolutif (stades III et IV). Le but de ce travail est d’évaluer les classifications de OLGA et de OLGIM au cours des gastrites chroniques à H pylori. Nous avons réalisé une étude descriptive transversale portant sur 100 cas de gastrite chronique à H pylori. La réévaluation des paramètres du Sydney System de l'atrophie et de la métaplasie intestinale, de l'antre et du corps gastrique, a permis de définir respectivement les stades OLGA et OLGIM. Le risque évolutif de nos gastrites à H pylori était de 6% selon OLGA et de 7% selon OLGIM. Une liaison significative a été révélée entre l’âge et OLGA. Les gastrites à haut risque selon OLGIM, étaient significativement associées à une atrophie modérée à sévère. Les formes à haut risque selon OLGA s'associaient dans plus de 80% des cas à une métaplasie intestinale. OLGA et OLGIM présentaient une corrélation positive et hautement significative entre elles avec une discordance évaluée à 5%. Les classifications de OLGA et OLGIM, en complément au Sydney System, permettent de sélectionner les formes de gastrites à haut risque nécessitant une surveillance étroite. PMID:27200133

  4. Sensitivity of the OLGA and VCM models to erroneous marker placement: effects on 3D-gait kinematics.

    PubMed

    Groen, B E; Geurts, M; Nienhuis, B; Duysens, J

    2012-03-01

    Gait data need to be reliable to be valuable for clinical decision-making. To reduce the impact of marker placement errors, the Optimized Lower Limb Gait Analysis (OLGA) model was developed. The purpose of this study was to assess the sensitivity of the kinematic gait data to a standard marker displacement of the OLGA model compared with the standard Vicon Clinical Manager (VCM) model and to determine whether OLGA reduces the errors due to the most critical marker displacements. Healthy adults performed six gait sessions. The first session was a standard gait session. For the following sessions, 10mm marker displacements were applied. Kinematic data were collected for both models. The root mean squares of the differences (RMS) were calculated for the kinematics of the displacement sessions with respect to the first session. The results showed that the RMS values were generally larger than the stride-to-stride variation except for the pelvic kinematics. For the ankle, knee and hip kinematics, OLGA significantly reduced the averaged RMS values for most planes. The shank, knee and thigh anterior-posterior marker displacements resulted in RMS values exceeding 10°. OLGA reduced the errors due to the knee and thigh marker displacements, but not the errors due to the ankle marker displacements. In conclusion, OLGA reduces the effect of erroneous marker placement, but does not fully compensate all effects, indicating that accurate marker placement remains of crucial importance for adequate 3D-gait analysis and subsequent clinical decision-making.

  5. Surface Hydrology in Global River Basins in the Off-Line Land-Surface GEOS Assimilation (OLGA) System

    NASA Technical Reports Server (NTRS)

    Bosilovich, Michael G.; Yang, Runhua; Houser, Paul R.

    1998-01-01

    Land surface hydrology for the Off-line Land-surface GEOS Analysis (OLGA) system and Goddard Earth Observing System (GEOS-1) Data Assimilation System (DAS) has been examined using a river routing model. The GEOS-1 DAS land-surface parameterization is very simple, using an energy balance prediction of surface temperature and prescribed soil water. OLGA uses near-surface atmospheric data from the GEOS-1 DAS to drive a more comprehensive parameterization of the land-surface physics. The two global systems are evaluated using a global river routing model. The river routing model uses climatologic surface runoff from each system to simulate the river discharge from global river basins, which can be compared to climatologic river discharge. Due to the soil hydrology, the OLGA system shows a general improvement in the simulation of river discharge compared to the GEOS-1 DAS. Snowmelt processes included in OLGA also have a positive effect on the annual cycle of river discharge and source runoff. Preliminary tests of a coupled land-atmosphere model indicate improvements to the hydrologic cycle compared to the uncoupled system. The river routing model has provided a useful tool in the evaluation of the GCM hydrologic cycle, and has helped quantify the influence of the more advanced land surface model.

  6. [Atrophy in the mucosa neighboring an intestinal-type gastric adenocarcinoma by comparing the Sydney vs. OLGA systems].

    PubMed

    Ramírez-Mendoza, Pablo; Hernández-Briseño, Liliana; Casarrubias-Ramírez, Moisés; Alvarado-Cabrero, Isabel; Ángeles-Garay, Ulises

    2015-01-01

    Introducción: el carcinoma gástrico ocasiona al año unas 700 000 muertes en el mundo. El objetivo de este artículo es evaluar la atrofia en la mucosa vecina al adenocarcinoma gástrico tipo intestinal comparando los sistemas Sídney y OLGA. Diferencias en el rendimiento diagnóstico impulsarían el empleo de alguno. Métodos: estudiamos 28 sujetos con adenocarcinoma gástrico tipo intestinal (Lauren), que comparamos con 32 casos sin neoplasia, ambos grupos con gastrectomía total. Dos patólogos evaluaron la atrofia en el epitelio de cuerpo y antro no neoplásico con los sistemas Sídney y OLGA. Se obtuvieron la media, mediana y distribución de frecuencias por escala de medición, así como la distribución de las variables del estudio. Se calculó la sensibilidad, especificidad y los valores predictivos para cáncer gástrico gracias a dicotomizar las escalas con resultado positivo y negativo para atrofia avanzada. Resultados: veinticuatro de 28 casos con adenocarcinoma gástrico tipo intestinal mostraron atrofia avanzada con OLGA con una sensibilidad y especificidad de 77 y 85 % respectivamente. Con el sistema Sídney, 4 de 28 mostraron atrofia avanzada con una sensibilidad y especificidad de 14 y 100 % respectivamente. Conclusiones: el sistema OLGA tiene elevada sensibilidad y especificidad (77 y 85 % respectivamente) para reconocer cambios preneoplásicos en la mucosa vecina al cáncer gástrico. Empero, OLGA no mostró atrofia avanzada en adenomas foveolares con displasia de alto grado, ni en adenocarcinomas en las porciones proximales del estómago.

  7. Quantitative determination of Amaryllidaceae alkaloids from Galanthus reginae-olgae subsp. vernalis and in vitro activities relevant for neurodegenerative diseases.

    PubMed

    Conforti, Filomena; Loizzo, Monica Rosa; Marrelli, Mariangela; Menichini, Federica; Statti, Giancarlo A; Uzunov, Dimitar; Menichini, Francesco

    2010-01-01

    In the present work the qualitative and quantitative analysis of Amaryllidaceae-type alkaloids in the aerial parts and bulbs of Galanthus reginae-olgae Orph. subsp. vernalis Kamari is presented for the first time using GC-MS analysis. The alkaloids galanthamine, lycorine, and tazettine were identified in both extracts while crinine and neronine were found only in the bulbs. The yield of alkaloid fraction from bulbs (36.8%) is very high compared to the yield from aerial parts (9.34%). Lycorine was the major component in both fractions. The antioxidant potential was determined by three complementary methods. The preparations to reduce the stable free radical DPPH to the yellow-colored 1,1-diphenyl-2-picrylhydrazyl with IC(50) values of 39 and 29 mug/mL for MeOH extracts from aerial parts and bulbs, respectively. The higher activity was given by EtOAc fraction of aerial parts with IC(50) of 10 mug/mL. This activity is probably due to the presence in EtOAc fraction of polar compounds such as polyphenols. The fraction exhibited a significant antioxidant capacity also in the beta-carotene-linoleic acid test system. A higher level of antioxidant activity was observed for EtOAc fraction from bulbs with IC(50) of 10 mug/mL after 30 min and 9 mug/mL after 60 min of incubation. In contrast, the fraction from bulbs performed poorly in the lipid peroxidation liposomes assay. Significant activity was obtained for dichloromethane fraction from aerial parts (IC(50) of 74 mug/mL). The major abundance of alkaloid in dichloromethane fraction may be responsible of the bulbs anti-cholinesterase highest activity (38.5%) at 0.5 mg/mL.

  8. Energy Consumption of Battery-Operated Screwdriver at Assembling Fixed Threaded Joints / Akumulatora Skrūvgrieža Elektroenerģijas Patēriņa Aprēķins, Veicot Nekustīga Vītņu Savienojuma Salikšanu Atkarībā No Operatora Reakcijas Laika

    NASA Astrophysics Data System (ADS)

    Grinevich, I.; Mozga, N.; Rudzitis, J.

    2013-10-01

    The electrical energy consumption of battery-operated screwdrivers, which are widely used in many industries, e.g. automotive, heavy, chemical, etc., can be considerably reduced. This would allow increasing the service life of a battery and reducing the time of its charging, thus increasing the productivity and decreasing the prime cost of this battery. It is shown that up to 17.9% of electrical energy could be saved at assembling fixed threaded joints by removing power from the screwdriver immediately after reaching the required tightening torque. Dotajā rakstā uzmanība tiek pievērsta akumulatora skrūvgrieža elektroenerģijas patēriņa samazināšanas iespējām sakarā ar problēmas aktualitāti šīs grupas plaši pielietotajiem instrumentiem. Elektroenerģijas patēriņa samazināšana masveida ražošanā, kur tiek izmantoti akumulatora skrūvgrieži, ļautu paildzināt akumulatora baterijas kalpošanas mūžu un samazināt uzlādēšanas laiku, kas, savukārt, novestu pie ražības palielināšanas un produkcijas pašizmaksas samazināšanas.

  9. Functional Training for Initiating Joint Attention in Children with Autism

    ERIC Educational Resources Information Center

    Naoi, Nozomi; Tsuchiya, Ritsu; Yamamoto, Jun-Ichi; Nakamura, Katsuki

    2008-01-01

    The present study aimed to examine the controlling variables for initiating joint attention (IJA) in three children with autism. During the baseline, target objects were presented in a location where the child could see them, but the adult could not, and the emergence of IJA was assessed. Children with autism showed some IJA skills during the…

  10. Final grant report to the U.S. Department of Energy (DOE): Olga Taussky Todd Celebration of Careers in Mathematics for Women.

    SciTech Connect

    Case, Bettye Anne

    2002-06-03

    This grant was proposed to be supplemental funding for a conference which would be documented by publication of conference information in the AWM Newsletter, and then inclusion of the Proceedings and other information generated in a book. The conference was held and documented in the AWM Newsletter (Vol. 29, No. 6; Vol. 30, No. 1 (attached)). Work is in progress on the extensive and complicated related publication which involves 50 authors beyond those from the conference. The Celebration was held at the Mathematical Sciences Research Institute in Berkeley, Calif. It was attended by over 100 women and men mathematicians. Plenary talks, panels, and poster sessions were held.

  11. Joint Attention Initiation with and without Positive Affect: Risk Group Differences and Associations with ASD Symptoms

    ERIC Educational Resources Information Center

    Gangi, Devon N.; Ibañez, Lisa V.; Messinger, Daniel S.

    2014-01-01

    Infants at risk for autism spectrum disorders (ASD) may have difficulty integrating smiles into initiating joint attention (IJA) bids. A specific IJA pattern, anticipatory smiling, may communicate preexisting positive affect when an infant smiles at an object and then turns the smile toward the social partner. We compared the development of…

  12. A Brief Report: Quantifying and Correlating Social Behaviors in Children with Autism Spectrum Disorders

    ERIC Educational Resources Information Center

    Johnson, Ashley L.; Gillis, Jennifer M.; Romanczyk, Raymond G.

    2012-01-01

    The current study investigated social behaviors, including initiating joint attention (IJA), responding to joint attention (RJA), social orienting, and imitation in 14 children with an autism spectrum disorder (ASD) compared to 12 typically developing children (TD). Results indicated that IJA and RJA were positively correlated with social…

  13. Brief report: High and low level initiations of joint attention, and response to joint attention: differential relationships with language and imitation.

    PubMed

    Pickard, Katherine E; Ingersoll, Brooke R

    2015-01-01

    Frequency of high-level (showing/pointing) and low-level (coordinated gaze shifts) behaviors on the Early Social Communication Scales are often used as a measure of joint attention initiations (IJA). This study examined the degree to which these skills and response to joint attention (RJA; e.g. gaze following) were differentially related to measures of language and imitation in 53 children with autism spectrum disorder between the ages of 22 and 93 months. High-level and low-level IJA were not associated with each other, and only high-level IJA was associated with RJA, and language and imitation measures. High-level IJA and RJA were unique predictors of imitation, while RJA was a unique predictor of language. Findings indicate that IJA involves distinct skills, with high-level behaviors more closely related to social-communication skills.

  14. 13b,13c-Di-2-pyridyl-5,7,12,13b,13c,14-hexa­hydro-6H,13H-5a,6a,12a,13a-tetra­azabenz[5,6]azuleno[2,1,8-ija]benz[f]azulene-6,13-dione methanol hemisolvate

    PubMed Central

    Li, Lin; Wang, Zhi-Guo; Wang, Yu-Zhou

    2008-01-01

    The title compound, C30H24N6O2·0.5CH3OH, a glycoluril derivative with two pyridine substituents on the convex face of the glycoluril system, is an important inter­mediate for the synthesis of more complex glycoluril derivatives. The compound crystallizes with two independent mol­ecules in the asymmetric unit, one of which exhibits disorder of one benzene ring over two orientations with refined site occupancy factors 0.65 (4):0.35 (4). The crystal structure contains several short C—H⋯O contacts, and the methanol mol­ecule forms an O—H⋯O hydrogen bond to one of the glycoluril mol­ecules. PMID:21200705

  15. Astrobiology and Habitability Studies Supporting Mars Research and Missions

    NASA Astrophysics Data System (ADS)

    Foing, B. H.; Thiel, C.; Direito, S.; Ehrenfreund, P.; Roling, W.; Martins, Z.; Sephton, M.; Stoker, C.; Zhavaleta, J.; Orzechowska, G.; Kidd, R.; Quinn, R.; Kotler, M.; Eurogeomars Mdrs Team

    2011-03-01

    During EuroGeoMars 2009 campaign, we characterized the mineralogy, organic compounds and microbiology of selected samples from different geological sites, and established correlations (Special Issue: “Astrobiology field research in Moon/Mars analog environments”: IJA 2011).

  16. Chief Stephen's Parky: One Year in the Life of an Athapascan Girl. The Council for Indian Education Series.

    ERIC Educational Resources Information Center

    Chandonnet, Ann

    This book tells the fictional story of Olga, the wife of Chief Stephen, leader of a Tanaina Athapascan village on Cook Inlet, northwest of Anchorage, Alaska. Olga works for one full year with great courage and independence trapping ground squirrels and gathering materials needed to tan, dye, and sew furs to make a parka for her husband. She uses…

  17. A comparison of contexts for assessing joint attention in toddlers on the autism spectrum

    PubMed Central

    Roos, Elizabeth M.; McDuffie, Andrea S.; Weismer, Susan Ellis; Ann Gernsbacher, Morton

    2009-01-01

    Children on the autism spectrum often demonstrate atypical joint attention, leading some researchers to consider joint attention defecits a core feature of the autism spectrum. Structured measures, such as the Early Social Communication Scales (ESCS), are commonly used to provide a metric of joint attention. To explore the assessment of joint attention in multiple contexts, we implemented an alternative system for coding joint attention behaviors. We compared initiation of joint attention (IJA) and response to joint attention (RJA) behaviors coded from naturalistic examiner–child play samples with similar IJA and RJA behaviors elicited within the structured ESCS protocol. Participants were 20 toddlers on the autism spectrum. Levels of IJA and RJA within the two assessment contexts were significantly and positively correlated, providing support for the use of naturalistic sampling of joint attention skills as a viable alternative, or supplement, to structured measures. PMID:18445736

  18. A test of flushing procedures to control salt-water intrusion at the W. P. Franklin Dam near Ft. Myers, Florida and The magnitude and extent of salt-water contamination in the Caloosahatchee River between La Belle and Olga, Florida

    USGS Publications Warehouse

    Boggess, Durward H.

    1970-01-01

    During low-flow periods, salty water from the tidal part of the Caloosahatchee River moves upstream during boat lockages at the W. P. Franklin Darn near Ft. Myers, Florida, as shown on figure L Salty water enters the lock chamber through openings of the downstream sector gates which separate tidal and fresh water; when the upstream gates open, some of the salty water moves into the upper pool, probably as a density current. Repeated injections of salty water cause a progressive increase in the salinity of the upstream water. The salty water moves upstream within the deeper parts of the river channel as far as 5 or more miles above the lock. Some mixing of the high-chloride deeper water and the fresher shallow water occurs in the affected reach above the lock, probably as a result of wind and waves, and turbulence created by boat traffic.

  19. 76 FR 12317 - Shoshone Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-07

    ... Forest Service Shoshone Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Shoshone Resource Advisory Committee (Committee) will meet in Thermopolis, Wyoming... Broadway, Thermopolis, Wyoming. FOR FURTHER INFORMATION CONTACT: Olga Troxel, Resource Advisory...

  20. 77 FR 56607 - Shoshone Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-13

    ... Forest Service Shoshone Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Shoshone Resource Advisory Committee (Committee) is holding a meeting on September... INFORMATION CONTACT: Olga Troxel, Resource Advisory Committee Coordinator, Shoshone National Forest...

  1. 76 FR 41196 - Shoshone Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-13

    ... Forest Service Shoshone Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Shoshone Resource Advisory Committee (Committee) will meet in Thermopolis, Wyoming...: Olga Troxel, Resource Advisory Committee Coordinator, Shoshone National Forest Supervisor's...

  2. 76 FR 3081 - Shoshone Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-19

    ... Forest Service Shoshone Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Shoshone Resource Advisory Committee (Committee) will hold a conference call on.... FOR FURTHER INFORMATION CONTACT: Olga Troxel, Resource Advisory Committee Coordinator,...

  3. 76 FR 22672 - Shoshone Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-22

    ... Forest Service Shoshone Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Shoshone Resource Advisory Committee (Committee) will meet in Thermopolis, Wyoming... CONTACT: Olga Troxel, Resource Advisory Committee Coordinator, Shoshone National Forest...

  4. 77 FR 47360 - Shoshone Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-08

    ... Forest Service Shoshone Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Shoshone Resource Advisory Committee (Committee) will hold a conference call on.... FOR FURTHER INFORMATION CONTACT: Olga Troxel, Resource Advisory Committee Coordinator,...

  5. Operative link on gastritis assessment stage is an appropriate predictor of early gastric cancer

    PubMed Central

    Zhou, Ying; Li, Hai-Yan; Zhang, Jing-Jing; Chen, Xiao-Yu; Ge, Zhi-Zheng; Li, Xiao-Bo

    2016-01-01

    AIM: To assess the predictive value of Operative Link on Gastritis Assessment (OLGA) and Operative Link on Gastric Intestinal Metaplasia Assessment (OLGIM) stages in gastric cancer. METHODS: A prospective study was conducted with 71 patients with early gastric cancer (EGC) and 156 patients with non-EGC. All patients underwent endoscopic examination and systematic biopsy. Outcome measures were assessed and compared, including the Japanese endoscopic gastric atrophy (EGA) classification method and the modified OLGA method as well as the modified OLGIM method. Helicobacter pylori (H. pylori) status was determined for all study participants. Stepwise logistic regression modeling was performed to analyze correlations between EGC and the EGA, OLGA and OLGIM methods. RESULTS: For patients with EGC and patients with non-EGC, the proportions of moderate-to-severe EGA cases were 64.8% and 44.9%, respectively (P = 0.005), the proportions of OLGA stages III-IV cases were 52.1% and 22.4%, respectively (P < 0.001), and the proportions of OLGIM stages III-IV cases were 42.3% and 19.9%, respectively (P < 0.001). OLGA stage and OLGIM stage were significantly related to EGA classification; specifically, logistic regression modeling showed significant correlations between EGC and moderate-to-severe EGA (OR = 1.95, 95% CI: 1.06-3.58, P = 0.031) and OLGA stages III-IV (OR = 3.14, 95%CI: 1.71-5.81, P < 0.001), but no significant correlation between EGC and OLGIM stages III-IV (P = 0.781). H. pylori infection rate was significantly higher in patients with moderate-to-severe EGA (75.0% vs 54.1%, P = 0.001) or OLGA/OLGIM stages III-IV (OLGA: 83.6% vs 55.8%, P < 0.001; OLGIM: 83.6% vs 57.8%, P < 0.001). CONCLUSION: OLGA classification is optimal for EGC screening. A surveillance program including OLGA stage and H. pylori infection status may facilitate early detection of gastric cancer. PMID:27053859

  6. Dependence of the transition from Townsend to glow discharge on secondary emission

    NASA Astrophysics Data System (ADS)

    Raizer, Yu. P.; Ebert, Ute; Šijačić, D. D.

    2004-07-01

    In a recent paper,

    Šijačić and Ebert [Phys. Rev. E. 66, 006410 (2002)
    ] systematically studied the transition from Townsend to glow discharge, referring to older work by von Engel and M. Steenbeck [Elektrische Gasentladungen. Ihre Physik und Technik (Springer, Berlin 1934), Vol. II] up to Raizer [Gas Discharge Physics (Springer, Berlin, 1991)]. Šijačić and Ebert stated that this transition strongly depends on secondary emission γ from the cathode. We show here that the earlier results of von Engel and Raizer on the small current expansion about the Townsend limit actually are the limit of small γ of the Šijačić and Ebert expression, and that for larger γ the old and the Šijačić and Ebert new results vary by no more than a factor of 2. We discuss the γ dependence of the transition, which is rather strong for short gaps.

  7. Brief Report: High and Low Level Initiations of Joint Attention, and Response to Joint Attention--Differential Relationships with Language and Imitation

    ERIC Educational Resources Information Center

    Pickard, Katherine E.; Ingersoll, Brooke R.

    2015-01-01

    Frequency of high-level (showing/pointing) and low-level (coordinated gaze shifts) behaviors on the Early Social Communication Scales are often used as a measure of joint attention initiations (IJA). This study examined the degree to which these skills and response to joint attention (RJA; e.g. gaze following) were differentially related to…

  8. Speech Compensation for Time-Scale-Modified Auditory Feedback

    ERIC Educational Resources Information Center

    Ogane, Rintaro; Honda, Masaaki

    2014-01-01

    Purpose: The purpose of this study was to examine speech compensation in response to time-scale-modified auditory feedback during the transition of the semivowel for a target utterance of /ija/. Method: Each utterance session consisted of 10 control trials in the normal feedback condition followed by 20 perturbed trials in the modified auditory…

  9. Commentary on: "Toward Computer-Based Support of Metacognitive Skills: A Computational Framework to Coach Self Explanation"

    ERIC Educational Resources Information Center

    Conati, Cristina

    2016-01-01

    This paper is a commentary on "Toward Computer-Based Support of Meta-Cognitive Skills: a Computational Framework to Coach Self-Explanation", by Cristina Conati and Kurt Vanlehn, published in the "IJAED" in 2000 (Conati and VanLehn 2010). This work was one of the first examples of Intelligent Learning Environments (ILE) that…

  10. Res-E Support Policies in the Baltic States: Electricity Price Aspect (Part II)

    NASA Astrophysics Data System (ADS)

    Bobinaite, V.; Priedite, I.

    2015-04-01

    Increasing volumes of electricity derived from renewable energy sources (RES-E) affect the electricity market prices and the prices for final electricity consumers in the Baltic States. The results of a multivariate regression analysis show that in 2013 the RES-E contributed to decreasing the electricity market prices in the Baltic States. However, the final electricity consumers pay for the promotion of RES-E through the approved RES-E component which has a tendency to increase. It is estimated that in 2013 the net benefits from the wind electricity promotion were achieved in Lithuania and Latvia while the net cost - in Estonia. This suggests that the economic efficiency of the wind electricity support scheme based on the application of feed-in tariffs was higher than that based on the feed-in premium. Rakstā analizēta elektroenerģijas ražošanas no atjaunojamiem energoresursiem (AER-E) palielināšanas ietekme uz elektroenerģijas tirgus cenu un gala cenu elektroenerģijas lietotājiem Baltijas valstīs. Daudzfaktoru regresijas analīzes rezultāti atklāja, ka AER-E 2013. gadā varētu samazināt elektroenerģijas tirgus cenas Baltijas valstīs. Tomēr jāņem vērā, ka elektroenerģijas lietotāja gala cenā ir iekļauta AER-E atbalsta komponente, kurai ir raksturīgi palielināties. Aprēķināts, ka no vēja elektroenerģijas ražošanas Latvijā un Lietuvā tika iegūta tīrā peļņa, bet Igaunijā tikai nosedza pašizmaksu. Tas liecina, ka vēja elektroenerģijas atbalsta shēmai, kas balstīta uz obligātā iepirkuma atbalsta principu, ir augstāka ekonomiskā efektivitāte, nekā atbalsta shēmai, kas balstīta uz piemaksu par no AER saražoto elektroenerģiju obligātā iepirkuma ietvaros.

  11. Brief Report: Joint Attention and Information Processing in Children with Higher Functioning Autism Spectrum Disorders.

    PubMed

    Mundy, Peter; Kim, Kwanguk; McIntyre, Nancy; Lerro, Lindsay; Jarrold, William

    2016-07-01

    Theory suggests that information processing during joint attention may be atypical in children with Autism Spectrum Disorder (ASD). This hypothesis was tested in a study of school-aged children with higher functioning ASD and groups of children with symptoms of ADHD or typical development. The results indicated that the control groups displayed significantly better recognition memory for pictures studied in an initiating joint attention (IJA) rather than responding to joint attention (RJA) condition. This effect was not evident in the ASD group. The ASD group also recognized fewer pictures from the IJA condition than controls, but not the RJA condition. Atypical information processing may be a marker of the continued effects of joint attention disturbance in school aged children with ASD. PMID:27062035

  12. Joint attention initiation with and without positive affect: risk group differences and associations with ASD symptoms.

    PubMed

    Gangi, Devon N; Ibañez, Lisa V; Messinger, Daniel S

    2014-06-01

    Infants at risk for autism spectrum disorders (ASD) may have difficulty integrating smiles into initiating joint attention (IJA) bids. A specific IJA pattern, anticipatory smiling, may communicate preexisting positive affect when an infant smiles at an object and then turns the smile toward the social partner. We compared the development of anticipatory smiling at 8, 10, and 12 months in infant siblings of children with ASD (high-risk siblings) and without ASD (low-risk siblings). High-risk siblings produced less anticipatory smiling than low-risk siblings, suggesting early differences in communicating preexisting positive affect. While early anticipatory smiling distinguished the risk groups, IJA not accompanied by smiling best predicted later severity of ASD-related behavioral characteristics among high-risk siblings. High-risk infants appear to show lower levels of motivation to share positive affect with others. However, facility with initiating joint attention in the absence of a clear index of positive affective motivation appears to be central to the prediction of ASD symptoms. PMID:24281421

  13. Multiculturalism and AIDS: different communities mean different educational messages required

    PubMed Central

    Lechky, O

    1997-01-01

    Having a multitude of different ethnic communities forces Canada's AIDS educators to use many different methods to deliver their messages. These range from an AIDS bingo game that has been used to educate natives in northern Manitoba to attempts to take AIDS education to the streets of Toronto. With AIDS education, reports Olga Lechky, one message definitely does not fit all. PMID:9164407

  14. Access and Success with Less: Improving Productivity in Broad-Access Postsecondary Institutions

    ERIC Educational Resources Information Center

    Jenkins, Davis; Rodriguez, Olga

    2013-01-01

    Achieving national goals for increased college completion in a time of scarce resources will require the postsecondary institutions that enroll the majority of undergraduates--community colleges and less-selective public universities--to graduate more students at a lower cost. Davis Jenkins and Olga Rodriguez examine research on how these…

  15. Revision of the new world genus Crassomicrodus Ashmead (Hymenoptera, Braconidae, Agathidinae), with an identification key to species

    PubMed Central

    Figueroa, José Isaac; Sharkey, Michael Joseph; Nápoles, Jesus Romero; García, José Antonio Sánchez; Martínez, Ana Mabel; López-Martínez, Victor; Pineda, Samuel

    2011-01-01

    Abstract A key to species and descriptions are presented for 14 species of the New World genus Crassomicrodus Ashmead. Seven new species, Crassomicrodus azteca, Crassomicrodus clypealis, Crassomicrodus costaricensis, Crassomicrodus jalisciensis, Crassomicrodus mariae, Crassomicrodus oaxaquensis,and Crassomicrodus olgae are described. Crassomicrodus fenestratus (Viereck) is synonymized with Crassomicrodus nigriceps (Cresson). Crassomicrodus melanopleurus (Ashmead) is recognized as a valid species. PMID:22144862

  16. 78 FR 64510 - Center for Scientific Review; Notice of Closed Meetings

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-29

    ..., Bethesda, MD 20892 (Virtual Meeting). Contact Person: Tomas Drgon, PhD., Scientific Review Officer, Center... (Virtual Meeting). Contact Person: Olga A Tjurmina, PhD., Scientific Review Officer, Center for Scientific..., 6701 Rockledge Drive, Bethesda, MD 20892 (Virtual Meeting). Contact Person: Dana Jeffrey Plude,...

  17. Creative Dramatics. Beginnings Workshop.

    ERIC Educational Resources Information Center

    Gabriel, Julia; Sidlovskaya, Olga; Stotter, Ruth; Haugen, Kirsten; Leithold, Naomi

    2000-01-01

    Presents five articles on using creative dramatics in early childhood education: (1) "Drama: A Rehearsal for Life" (Julia Gabriel); (2) "Fairy Tales Enhance Imagination and Creative Thinking" (Olga Sidlovskaya); (3) "Starting with a Story" (Ruth Stotter); (4) "Using Creative Dramatics to Include All Children" (Kirsten Haugen); and (5) "Helping…

  18. 77 FR 47593 - Shoshone Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-09

    ... Forest Service Shoshone Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Shoshone Resource Advisory Committee (Committee) will hold a meeting on September 19...-6241 to facilitate entry into the building. FOR FURTHER INFORMATION CONTACT: Olga Troxel,...

  19. 77 FR 27717 - Marine Mammals; File No. 16919

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-11

    .... ACTION: Notice; receipt of application. SUMMARY: Notice is hereby given that Eye of the Whale (Olga von... in due form for a permit to conduct research on humpback whales (Megaptera novaeangliae). DATES... continue a long-term census of humpback whales in Prince William Sound and adjacent waters of Alaska. Up...

  20. Anton Chekhov: Yalta Years, 1899-1904.

    ERIC Educational Resources Information Center

    Brinkle, Lydle

    Anton Pavlovich Chekhov spent 6 of the last 7 years of his life at Yalta (located on the Crimean Peninsula) where he had a house constructed in order that he might live in a climate favorable to his failing health. During these years Chekhov married the actress Olga Knipper and met Leo Tolstoy, who was near the end of his life. Chekhov also…

  1. Language across Cultures. Proceedings of a Symposium (St. Patrick's College, Dublin, Ireland, July 8-9, 1983).

    ERIC Educational Resources Information Center

    Mathuna, Liam Mac; Singleton, David

    Papers presented at the symposium on the relationship between language and culture include, in addition to an opening adress: "Sociosemiotics Across Cultures" (Wolfgang Kuhlwein); "Translation Across Languages or Across Cultures?" (Albrecht Neubert); "Grammatical Categories Across Cultures" (Olga Tomic); "On Taking Language Tests: What the…

  2. 75 FR 15678 - Certain Purified Carboxymethylcellulose from the Netherlands: Extension of Time Limit for...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-30

    ... Requests for Revocation in Part, 74 FR 42873 (August 25, 2009). This review covers the period July 1, 2008... Determination Deadlines Pursuant to the Tariff Act of 1930, As Amended, 70 FR 24533 (May 10, 2005). We intend to... INFORMATION CONTACT: Olga Carter, Edythe Artman, or Angelica Mendoza, Office 7, AD/CVD Operations,...

  3. 78 FR 23827 - Designation of Eighteen Individuals Pursuant to the Sergei Magnitsky Rule of Law Accountability...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-22

    ... (a.k.a. KRIVORUCHKO, Alex; a.k.a. KRIVORUCHKO, Alexei); DOB 25 Aug 1977; POB Moscow Region, Russia..., Olga G.; DOB 29 Jul 1962; POB Moscow, Russia (individual) . 5. DROGANOV, Aleksey O.; DOB 11 Oct 1975; POB Lesnoi Settlement, Pushkin Area, Moscow Region, Russia (individual) . 6. KARPOV, Pavel; DOB 27...

  4. White matter integrity, hippocampal volume, and cognitive performance of a world-famous nonagenarian track-and-field athlete.

    PubMed

    Burzynska, A Z; Wong, C N; Chaddock-Heyman, L; Olson, E A; Gothe, N P; Knecht, A; Voss, M W; McAuley, E; Kramer, A F

    2016-01-01

    Physical activity (PA) and cardiorespiratory fitness (CRF) are associated with successful brain and cognitive aging. However, little is known about the effects of PA, CRF, and exercise on the brain in the oldest-old. Here we examined white matter (WM) integrity, measured as fractional anisotropy (FA) and WM hyperintensity (WMH) burden, and hippocampal (HIPP) volume of Olga Kotelko (1919-2014). Olga began training for competitions at age of 77 and as of June 2014 held over 30 world records in her age category in track-and-field. We found that Olga's WMH burden was larger and the HIPP was smaller than in the reference sample (58 healthy low-active women 60-78 years old), and her FA was consistently lower in the regions overlapping with WMH. Olga's FA in many normal-appearing WM regions, however, did not differ or was greater than in the reference sample. In particular, FA in her genu corpus callosum was higher than any FA value observed in the reference sample. We speculate that her relatively high FA may be related to both successful aging and the beneficial effects of exercise in old age. In addition, Olga had lower scores on memory, reasoning and speed tasks than the younger reference sample, but outperformed typical adults of age 90-95 on speed and memory. Together, our findings open the possibility of old-age benefits of increasing PA on WM microstructure and cognition despite age-related increase in WMH burden and HIPP shrinkage, and add to the still scarce neuroimaging data of the healthy oldest-old (>90 years) adults.

  5. Micro-grid for on-site wind-and-hydrogen powered generation

    NASA Astrophysics Data System (ADS)

    Suskis, P.; Andreiciks, A.; Steiks, I.; Krievs, O.; Kleperis, J.

    2014-02-01

    The authors propose a micro-grid for autonomous wind-and-hydrogen power generation thus replacing such traditional fossil-fuelled equipment as domestic diesel generators, gas micro-turbines, etc. In the proposed microgrid the excess of electrical energy from a wind turbine is spent on electrolytic production of hydrogen which is then stored under low-pressure in absorbing composite material. The electrolyser has a non-traditional feeding unit and electrode coatings. The proposed DC/DC conversion topologies for different micro-grid nodes are shown to be well-designed. The prototypes elaborated for the converters and hydrogen storage media were tested and have demonstrated a good performance. Rakstā piedāvātā mikrotīkla izpēte ir veikta ar mērķi izstrādāt autonomu, uz vēja un ūdeņraža enerģiju balstītu elektroapgādes sistēmu, kas varētu aizvietot tradicionālās fosilā kurināmā sistēmas, piemēram, mājsaimniecību dīzeļa ģeneratorus, gāzes mikroturbīnas u.c. Mikrotīkla elektroapgādes sistēmā vēja agregāta saražotā elektroenerģija tiek pārveidota atbilstoši standarta maiņsprieguma elektroapgādes parametriem un piegādāta slodzei. Pārpalikusī enerģija tiek pārveidota un uzkrāta ūdeņraža formā, izmantojot elektrolīzes iekārtu un kompozītmateriālu uzkrājēju. Ja pieejamā vēja enerģija nenosedz slodzes enerģijas patēriņu, elektroenerģijas padeves funkciju ar atbilstoša energoelektronikas pārveidotāja palīdzību pārņem ūdeņraža degvielas elements. Ja, savukārt, slodzei nav nepieciešama enerģija, no vēja saražoto enerģiju izmanto elektrolīzes iekārta un tā tiek uzkrāta ūdeņraža formā, atbilstoši uzkrājēja ietilpībai. Piedāvātajā mikrotīklā ir izmantota elektrolīzes iekārta ar netradicionāliem elektrodu pārklājumiem un barošanas bloku, kā arī zemspiediena kompozītmateriālu ūdeņraža uzkrājējs. Galvenie mikrotīkla elektriskās enerģijas pārveidošanas mezgli ir

  6. Astrobiology Results from ILEWG EuroMoonMars Analogue Field Research

    NASA Astrophysics Data System (ADS)

    Foing, Bernard H.

    . v’t Houd (8), A. Bruneau (6,9), M. Cross (6,7), V. Maivald (10), C. Orgel (6), A. Elsaesser (4), S.O.L. Direito (2,4), W.F.M. Röling (2), G.R. Davies (2); EuroGeoMars2009 Team, DOMMEX-ILEWG EuroMoonMars 2010-2013 Teams (1) ESA/ ESTEC, Postbus 299, 2200 AG Noordwik, NL; (2) Vrije Universiteit, Amsterdam, Faculty of Earth & Life Sciences, De Boelelaan 1085, 1081 HV Amsterdam, NL; (3) NASA Ames Research Centre; US; (4) Leiden Institute of Chemistry, NL; (5) Space Policy Institute, GWU, Washington D.C., USA; (6) ILEWG; (7) CPSX; (8) Cerberus Blackshore, ESIC Noordwijk, NL; (9) ENSC Bordeaux; (10) DLR, Bremen References: Foing, Stoker & Ehrenfreund (Editors, 2011) “Astrobiology field Research in Moon/Mars Analogue Environments”, Special Issue of International Journal of Astrobiology , IJA 2011, 10, vol.3. 137-305; [1] Foing B. et al. (2011) Field astrobiology research at Moon-Mars analogue site: Instruments and methods, IJA 2011, 10 (3), 141; [2] Clarke, J., Stoker, C. Concretions in exhumed & inverte channels near Hanksville Utah: implications for Mars, (IJA 2011, 10 (3), 162; [3] Thiel et al., (2011) PCR-based analysis of microbial communities during the EuroGeoMars campaign at Mars Desert Research Station, Utah. (IJA 2011, 10 (3), 177; [4] Direito et al. (2011). A wide variety of putative extremophiles and large beta-diversity at the Mars Desert Research Station (Utah). (IJA 2011, 10 (3), 191; [5] Orzechowska, G. et al (20110 analysis of Mars Analog soils using solid Phase Microextraction, Organics solvent extraction and GCMS, (IJA 2011, 10 (3), 209; [6] Kotler et al. (2011). Analysis of mineral matrices of planetary soils analogs from the Utah Desert. (IJA 2011, 10 (3), 221; [7] Martins et al. (2011). Extraction of amino acids from soils close to the Mars Desert Research Station (MDRS), Utah. (IJA 2011, 10 (3), 231; [8] Ehrenfreund et al. (2011) Astrobiology and habitability studies in preparation for future Mars missions: trends from investigating minerals

  7. Habitability & Astrobiology Research in Mars Terrestrial Analogues

    NASA Astrophysics Data System (ADS)

    Foing, Bernard

    2014-05-01

    Journal of Astrobiology , IJA 2011, 10, vol. 3. 137-305 [1] Foing B. et al. (2011) Field astrobiology research at Moon-Mars analogue site: Instruments and methods, IJA 2011, 10 (3), 141;[2] Clarke, J., Stoker, C. Concretions in exhumed & inverted channels near Hanksville Utah: implications for Mars, (IJA 2011, 10 (3), 162;[3] Thiel et al., (2011) PCR-based analysis of microbial communities during the EuroGeoMars campaign at Mars Desert Research Station, Utah. (IJA 2011, 10 (3), 177;[4] Direito et al. (2011). A wide variety of putative extremophiles and large beta-diversity at the Mars Desert Research Station (Utah). (IJA 2011, 10 (3), 191;[5] Orzechowska, G. et al (20110 analysis of Mars Analog soils using solid Phase Microextraction, Organics solvent extraction and GCMS, (IJA 2011, 10 (3), 209; [6] Kotler et al. (2011). Analysis of mineral matrices of planetary soils analogs from the Utah Desert. (IJA 2011, 10 (3), 221; [7] Martins et al. (2011). Extraction of amino acids from soils close to the Mars Desert Research Station (MDRS), Utah. (IJA 2011, 10 (3), 231; [8] Ehrenfreund et al. (2011) Astrobiology and habitability studies in preparation for future Mars missions: trends from investigating minerals, organics and biota. (IJA 2011, 10 (3), 239; [9] Stoker C. et al (2011) Mineralogical, Chemical, Organic & Microbial Properties of Subsurface Soil Cores from Mars Desert Research Station, a Phyllosilicate and Sulfate Rich Mars Analog Site, IJA 2011, 10 (3), 269; [10] Rodrigues L. et al (2014, in preparation) Preventing biocontamination during sterile sampling; [11] Rodrigues L. et al (2014, in preparation) Microbial diversity in MDRS rocks and soils; [12] ILEWG EuroMoonMars Team, (2014, special issue in preparation) Results from ILEWG EuroMoonMars campaign 2013 **Acknowledgements: B.H.Foing (1, 2, 6), C. Stoker (3), P. Ehrenfreund (4, 5), I. Rammos (2), L. Rodrigues (2), A. Svendsen (2), D. Oltheten (2), K. Nebergall (6), M. Battler (6, 7), H. v't Houd (8), A. Bruneau (6

  8. Slug sizing/slug volume prediction, state of the art review and simulation

    SciTech Connect

    Burke, N.E.; Kashou, S.F.

    1995-12-01

    Slug flow is a flow pattern commonly encountered in offshore multiphase flowlines. It is characterized by an alternate flow of liquid slugs and gas pockets, resulting in an unsteady hydrodynamic behavior. All important design variables, such as slug length and slug frequency, liquid holdup, and pressure drop, vary with time and this makes the prediction of slug flow characteristics both difficult and challenging. This paper reviews the state of the art methods in slug catcher sizing and slug volume predictions. In addition, history matching of measured slug flow data is performed using the OLGA transient simulator. This paper reviews the design factors that impact slug catcher sizing during steady state, during transient, during pigging, and during operations under a process control system. The slug tracking option of the OLGA simulator is applied to predict the slug length and the slug volume during a field operation. This paper will also comment on the performance of common empirical slug prediction correlations.

  9. TL dating of Upper Palaeolithic sites in the Coa Valley (Portugal)

    NASA Astrophysics Data System (ADS)

    Valladas, Hélène; Mercier, Norbert; Froget, Laurence; Joron, Jean Louis; Louis Reyss, Jean; Aubry, Thierry

    2001-12-01

    In 1992, numerous animal engravings in styles associated with the Upper Palaeolithic (Gravetian to Magdalenian) were discovered along a long stretch of the schist cliffs bordering the Côa Valley (Northern Portugal). This suggested that not only caves and rock-shelters but also open-air Pleistocene sites may have been decorated in this manner more often than previously believed. Attempts to date the engravings themselves (radiocarbon of patination, micro-erosion analysis) were unsatisfactory, yielding contradictory and widely scattered dates. We are now reporting thermoluminescence ages of 15 burnt quartzite pebbles excavated in 1997 at three sites (Cardina, Olga Grande Sul, Quinta da Barca Sul) near the decorated cliffs. The ages of the Cardina and Olga Grande Sul pebbles indicated human presence at the sites between 30 and 27 ka ago, during the Gravetian period. The Quinta da Barca Sul pebbles were 13-10 ka old, indicating that humans were also present in the Valley during the Magdalenian period.

  10. Changing conditions of mantle wedge melting across arc as illustrated by changing iron isotopes compositions

    NASA Astrophysics Data System (ADS)

    Foden, J. D.; Halverson, G. P.; Sossi, P.; Elburg, M. A.

    2009-12-01

    Active volcanoes in the eastern Sunda Arc , Indonesia are distributed across a wide range of position above the active Benioff Zone. These include the near fore-arc tholeiite suite from Ija volcano on Flores Island which is about 100 Km above the slab. Then at successively greater depths are the archetypal calcalkaline suites of Rinjani and Batur volcanoes on Lombok and Bali and then the rear arc alkalic suites from Tambora, Sangeang Api and Batu Tara. The latter approaching 200km above the slab. The fore-arc volcano Ija is clearly influenced by hydrous fluid flux from the slab, having high Ba/Th and U/Nb ratios. The strongly undersaturated alkalic suites from Tambora and Batu Tara are highly enriched in LIL incompatible elements, but do not have sufficiently anomalously high 87Sr/86Sr or Pb isotopic ratios or low 143Nd/144Nd ratios to explain this anomaly as entirely due to significantly larger components of subducted sediment. This implies that these rear arc volcanoes are the product of smaller percentage melting of the supra-slab mantle wedge. This is also consistent with the determined lower water content of Tambora basalts compared with Ija fore-arc basalts. δ56Fe values were determined and show a systematic increase across the arc that is equivalent to that determined by other workers between some global MORB and OIB suites the bulk earth. This is like across arc variation described elsewhere (New Britain; Dauphas et al., 2009). It appears that this stable isotope fractionation results from the changed mode of melt percolation and extraction from the deeper, rear arc mantle wedge domains compared to the shallow fore-arc.

  11. Astrobiology Results from ILEWG EuroMoonMars Analogue Field Research

    NASA Astrophysics Data System (ADS)

    Foing, Bernard H.

    . v’t Houd (8), A. Bruneau (6,9), M. Cross (6,7), V. Maivald (10), C. Orgel (6), A. Elsaesser (4), S.O.L. Direito (2,4), W.F.M. Röling (2), G.R. Davies (2); EuroGeoMars2009 Team, DOMMEX-ILEWG EuroMoonMars 2010-2013 Teams (1) ESA/ ESTEC, Postbus 299, 2200 AG Noordwik, NL; (2) Vrije Universiteit, Amsterdam, Faculty of Earth & Life Sciences, De Boelelaan 1085, 1081 HV Amsterdam, NL; (3) NASA Ames Research Centre; US; (4) Leiden Institute of Chemistry, NL; (5) Space Policy Institute, GWU, Washington D.C., USA; (6) ILEWG; (7) CPSX; (8) Cerberus Blackshore, ESIC Noordwijk, NL; (9) ENSC Bordeaux; (10) DLR, Bremen References: Foing, Stoker & Ehrenfreund (Editors, 2011) “Astrobiology field Research in Moon/Mars Analogue Environments”, Special Issue of International Journal of Astrobiology , IJA 2011, 10, vol.3. 137-305; [1] Foing B. et al. (2011) Field astrobiology research at Moon-Mars analogue site: Instruments and methods, IJA 2011, 10 (3), 141; [2] Clarke, J., Stoker, C. Concretions in exhumed & inverte channels near Hanksville Utah: implications for Mars, (IJA 2011, 10 (3), 162; [3] Thiel et al., (2011) PCR-based analysis of microbial communities during the EuroGeoMars campaign at Mars Desert Research Station, Utah. (IJA 2011, 10 (3), 177; [4] Direito et al. (2011). A wide variety of putative extremophiles and large beta-diversity at the Mars Desert Research Station (Utah). (IJA 2011, 10 (3), 191; [5] Orzechowska, G. et al (20110 analysis of Mars Analog soils using solid Phase Microextraction, Organics solvent extraction and GCMS, (IJA 2011, 10 (3), 209; [6] Kotler et al. (2011). Analysis of mineral matrices of planetary soils analogs from the Utah Desert. (IJA 2011, 10 (3), 221; [7] Martins et al. (2011). Extraction of amino acids from soils close to the Mars Desert Research Station (MDRS), Utah. (IJA 2011, 10 (3), 231; [8] Ehrenfreund et al. (2011) Astrobiology and habitability studies in preparation for future Mars missions: trends from investigating minerals

  12. Molecular phylogeny of Incarvillea (Bignoniaceae) based on ITS and trnL-F sequences.

    PubMed

    Chen, Shaotian; Guan, Kaiyun; Zhou, Zhekun; Olmstead, Richard; Cronk, Quentin

    2005-04-01

    Incarvillea is a herbaceous and temperate member of Bignoniaceae, previously divided into four subgenera, Niedzwedzkia, Amphicome, Incarvillea, and Pteroscleris. Niedzwedzkia and Amphicome have in the past been treated as independent genera. Different relationships have been proposed for the four subgenera. Here, maximum parsimony analysis using ITS and trnL-F sequences resulted in similar trees and showed that the genus is monophyletic. Analysis of the combined data resulted in a single tree with five major clades highly supported and well resolved. The relationships of the five major clades are (subgenus Niedzwedzkia (Incarvillea olgae (subgenus Amphicome (subgenus Incarvillea, subgenus Pteroscleris)))). All four subgenera are well supported for monophyly, with the exception of subgenus Incarvillea, represented here by I. sinensis and I. olgae. Incarvillea olgae is not closely related to I. sinensis, a conclusion supported by morphology. The two basal monotypic subgenera are found in Central Asia. The most species-rich subgenus, Pteroscleris, has 10 species in the Himalaya-Hengduan Mountains and may have dispersed early from central Asia to eastern Asia. Short branch lengths on the molecular trees within Pteroscleris suggest a recent and rapid radiation of this rosette-forming subgenus, perhaps connected with the uplift of the Himalaya-Hengduan massif.

  13. Results from Global Land-Surface Data Assimilation Methods

    NASA Technical Reports Server (NTRS)

    Radakovich, Jon D.; Houser, Paul R.; daSilva, Arlindo; Bosilovich, Michael G.; Einaudi, Franco (Technical Monitor)

    2001-01-01

    Realistic representation of the land surface is crucial in global climate modeling (GCM). Recently, the Mosaic land-surface Model (LSM) has been driven off-line using GEOS DAS (Goddard Earth Observing System Data Assimilation System) atmospheric forcing, forming the Off-line Land-surface Global Assimilation (OLGA) system. This system provides a computationally efficient test bed for land surface data assimilation. Here, we validate the OLGA simulation of surface processes and the assimilation of ISCCP surface temperatures. Another component of this study as the incorporation of the Physical-space Statistical Analysis System (PSAS) into OLGA, in order to assimilate surface temperature observations from the International Satellite Cloud Climatology Project (ISCCP). To counteract the subsequent forcing of the analyzed skin temperature back to the initial state following the analysis. incremental bias correction (IBC) was included in the assimilation. The IBC scheme effectively removed the time mean bias, but did not remove him in the mean diurnal cycle. Therefore, a diurnal him correction (DBC) scheme was developed, where the time-dependent bias was modeled with a sine wave parameterization. In addition, quality control of the ISCCP data and anisotropic temperature correction were implemented in PSAS. Preliminary results showed a substantial impact from the inclusion of PSAS and DBC that was visible in the surface meteorology fields and energy budget. Also, the monthly mean diurnal cycle from the experiment closely matched the diurnal cycle from the observations.

  14. Assessment of Wind Shear and Wind Energy Potential in the Baltic Sea Region of Latvia

    NASA Astrophysics Data System (ADS)

    Bezrukovs, V.; Bezrukovs, Vl.; Zacepins, A.; Komashilovs, V.

    2015-04-01

    The paper is devoted to the investigation into the wind energy potential based on long-term observations of the wind speed and energy density fluctuations at heights from 10 to 160 m on the Baltic Sea coast of Latvia. During the observations (2004 - 2013), the wind speed and direction values were measured, and the statistical database was accumulated using a LOGGER 9200 Symphonie measuring systems mounted on 60 m masts - one on the western coast and another on the north-east of Latvia. From June 2011 to May 2012, these measurements were complemented with the data for the heights from 40 to 160 m obtained by means of a ZephIR lidar and with the metrological data provided by "Latvian Environment, Geology and Meteorology Centre" for the same period. The graphs of seasonal fluctuations in the wind speed were obtained for the heights up to 160 m by measurements over the period of 2007 - 2013. The results of the research on the wind speed distribution up to 200 m are promising for evaluation of the wind energy potential of Latvia and will be helpful in assessment of prospective sites for construction of WPPs. Zinātniskais raksts ir veltīts pētījumam par vēja enerģijas potenciālu Latvijas teritorijā, Baltijas jūras piekrastē, balstoties uz ilgtermiņa vēja ātruma un vēja enerģijas blīvuma svārstību novērojumiem no 10 līdz 160 metriem augstumā. Vēja ātruma un vēja virziena mērījumu dati tika iegūti un apkopoti statistiskajā datubāzē laika periodā no 2004 līdz 2013. gadam, izmantojot mērīšanas sistēmu LOGGER 9200 Symphonie, kas bija ierīkotā uz 60 metru augsta masta - viena rietumu piekrastē un otra Latvijas ziemeļu-austrumos. No 2011. gada jūnija līdz 2012. gada maijam mērījumu datubāze tika papildināta ar datiem, kas tika iegūti ar lidaruZephIR augstumos no 40 līdz 160 metriem, un datiem no "Latvijas Vides, ģeoloģijas un meteoroloģijas centra" tam pašam laika periodam. Analizējot mērījumus 2007. g.-2013. g., grafiki ar

  15. Real Time Mud Gas Logging During Drilling of DFDP-2B

    NASA Astrophysics Data System (ADS)

    Mathewson, L. A.; Toy, V.; Menzies, C. D.; Zimmer, M.; Erzinger, J.; Niedermann, S.; Cox, S.

    2015-12-01

    The Deep Fault Drilling Project (DFDP) aims to improve our understanding of the Alpine Fault Zone, a tectonically active mature fault system in New Zealand known to rupture in large events, by deep scientific drilling. The borehole DFDP-2B approached the Alpine Fault at depth, reaching a final depth of 892 m (820 m true vertical depth). Online gas analysis (OLGA) while drilling tracked changes in the composition of gases extracted from the circulating drill mud. The composition of fluids from fault zones can provide information about their origins, flow rates and -paths, fluid-rock interactions along these paths, and the permeability structure of the faulted rock mass. Apart from an atmospheric input, the gases in drilling mud derive from the pore space of rock, crushed at the drill bit, and from permeable layers intersected by the borehole. The rapid formation of mud wall cake seals the borehole from further fluid inflow, hence formation-derived gases enter mostly at the depth of the drill bit. OLGA analyses N2, O2, Ar, CO2, CH4, He, and H2 on a mass spectrometer, hydrocarbons CH4, C2H6, C3H8, i-C4H10, and n-C4H10 on a gas chromatograph, and Rn using a lucas-cell detector. Gas was sampled for offline analyses on noble gas and stable isotopes to complement the OLGA dataset. The principle formation-derived gases found in drilling mud during drilling of DFDP-2 were CO2 and CH4, with smaller component of H2 and He2. High radon activity is interpreted to reflect intervals of active fluid flow through highly fractured and faulted rock. 3He/4He values in many samples were extremely air-contaminated, i.e. there was almost no excess of non-atmospheric He. The 3He/4He values measured at 236 m and 610 m, which are the only analyses with uncertainties <100%, are very similar to those measured in hot springs along the Alpine Fault, e.g. Fox River (0.64 Ra), Copland (0.42 Ra), Lower Wanganui (0.81 Ra). We will compare these data to those gathered using OLGA and discuss the

  16. Extension of spatiotemporal chaos in glow discharge-semiconductor systems

    SciTech Connect

    Akhmet, Marat Fen, Mehmet Onur; Rafatov, Ismail

    2014-12-15

    Generation of chaos in response systems is discovered numerically through specially designed unidirectional coupling of two glow discharge-semiconductor systems. By utilizing the auxiliary system approach, [H. D. I. Abarbanel, N. F. Rulkov, and M. M. Sushchik, Phys. Rev. E 53, 4528–4535 (1996)] it is verified that the phenomenon is not a chaos synchronization. Simulations demonstrate various aspects of the chaos appearance in both drive and response systems. Chaotic control is through the external circuit equation and governs the electrical potential on the boundary. The expandability of the theory to collectives of glow discharge systems is discussed, and this increases the potential of applications of the results. Moreover, the research completes the previous discussion of the chaos appearance in a glow discharge-semiconductor system [D. D. Šijačić U. Ebert, and I. Rafatov, Phys. Rev. E 70, 056220 (2004).].

  17. Extension of spatiotemporal chaos in glow discharge-semiconductor systems.

    PubMed

    Akhmet, Marat; Rafatov, Ismail; Fen, Mehmet Onur

    2014-12-01

    Generation of chaos in response systems is discovered numerically through specially designed unidirectional coupling of two glow discharge-semiconductor systems. By utilizing the auxiliary system approach, [H. D. I. Abarbanel, N. F. Rulkov, and M. M. Sushchik, Phys. Rev. E 53, 4528-4535 (1996)] it is verified that the phenomenon is not a chaos synchronization. Simulations demonstrate various aspects of the chaos appearance in both drive and response systems. Chaotic control is through the external circuit equation and governs the electrical potential on the boundary. The expandability of the theory to collectives of glow discharge systems is discussed, and this increases the potential of applications of the results. Moreover, the research completes the previous discussion of the chaos appearance in a glow discharge-semiconductor system [D. D. Šijačić U. Ebert, and I. Rafatov, Phys. Rev. E 70, 056220 (2004).].

  18. High resolution dating of moraines on Kodiak Island, Alaska links Atlantic and North Pacific climatic changes during the late glacial

    SciTech Connect

    Mann, D.H. . Alaska Quaternary Center)

    1992-01-01

    Much less is known about the paleoclimate and paleoceanography of the North Pacific than the North Atlantic despite the North Pacific's important role in the global ocean-climate system. Kodiak Island lies in the northwestern Gulf of Alaska astride the eastern end of the Aleutian Low. On southwestern Kodiak Island, coastal bluffs section a series of moraines, kettle ponds, and bogs formed between 15 and 9 ka BP. Distinctive tephras from volcanoes on the Alaska Peninsula provide time-lines within the stratigraphy. Deformation events recorded in sediment stacks from basins within glaciotectonic landforms allows precise dating of glacial events. An ice cap occupied the Kodiak archipelago during the last glaciation. Three glacial advances of the southwestern margin of this ice cap occurred after 15 ka BP. At 13.4 ka, piedmont ice lobes formed large push moraines extending into Shelikof Strait during the Low Cape Advance. The less-extensive Tundra Advance culminated between 12 and 11.7 ka BP followed by glacier retreat then readvance to form the prominent Olga Moraine system between 11 and 10 ka BP. The timing of the Tundra and Olga Advances correlates closely with that of the Older and Younger Dryas cold episodes in northwestern Europe suggesting that these climatic oscillations were synchronous throughout the northern hemisphere.

  19. Gastritis: the histology report.

    PubMed

    Rugge, Massimo; Pennelli, Gianmaria; Pilozzi, Emanuela; Fassan, Matteo; Ingravallo, Giuseppe; Russo, Valentina M; Di Mario, Francesco

    2011-03-01

    Gastritis is defined as inflammation of the gastric mucosa. In histological terms, it is distinguishable into two main categories, i.e. non-atrophic and atrophic. In the gastric mucosa, atrophy is defined as the loss of appropriate glands. There are several etiological types of gastritis, their different etiology being related to different clinical manifestations and pathological features. Atrophic gastritis (resulting mainly from long-standing Helicobacter pylori infection) is a major risk factor for the onset of (intestinal type) gastric cancer. The extent and site of the atrophic changes correlate significantly with the cancer risk. The current format for histology reporting in cases of gastritis fails to establish an immediate link between gastritis phenotype and risk of malignancy. Building on current knowledge of the biology of gastritis, an international group of pathologists [Operative Link for Gastritis Assessment (OLGA)] has proposed a system for reporting gastritis in terms of its stage (the OLGA Staging System): this system places the histological phenotypes of gastritis on a scale of progressively increasing gastric cancer risk, from the lowest (Stage 0) to the highest (Stage IV). The aim of this tutorial is to provide unequivocal information on how to standardize histology reports on gastritis in diagnostic practice.

  20. Development of Solar Powered Feeding Scheme for Wireless Sensor Networks in low Solar Density Conditions / Bezvadu Sensoru Tīklu Elektroapgādes Sistēmas Izstrāde, Kas Izmanto Saules Paneļus Un Darbojas Pazeminātas Saules Radiācijas Apstākļos

    NASA Astrophysics Data System (ADS)

    Kondratjevs, K.; Zabasta, A.; Selmanovs-Pless, V.

    2015-08-01

    In the recent years, there has been significant research focus on the safety and reliability of data harvesting and optimal energy consuming by wireless sensor network nodes. If external electrical power fails, the node needs to be able to send notifications to the utility demanding the use of backup energy strategies. The authors of the research offer an approach that can help to use PV panels as an alternative power source for WSN nodes in particular irradiation conditions. Survey and testing of the main types of PV panels offered on the market in conditions closed to real ones, in which WSN nodes are maintained, have been implemented. Based on the test results, maximum power control module parameters can be calculated in order to achieve the best effectiveness of the power control system for a selected type of PV panel or panel group. The novelty of the research is an approach that includes an original test bed design for PV testing, PV testing method and selection of design and MPP control module parameters, which ensure maximum effectiveness of WSN node power feeding. Pēdējos gados vairāki pētījumi ir veltīti problēmām, kas ir saistītas ar enerģijas patēriņa mazināšanu un efektīvu izmantošanu bezvadu sensoru tīklu mezglos. Kad sensors mezgls ir izsmēlis enerģijas krājumu, tas vairs nefunkcionē un atslēdzas no kopēja tīkla, kas var būtiski ietekmēt visa tīkla veiktspēju. Šī pētījuma mērķis ir izveidot barošanas vadības moduli, lai nodrošinātu stabilu elektroapgādes spriegumu autonomi strādājošiem radio signāla atkārtotājiem, sensoriem vai vārtejām, kas darbojas bezvadu sensoru tīklos. Pētījuma ietvaros izstrādāta metode saules paneļu kvalitatīvai salīdzināšanai starp tehnoloģijām vai savā starpā, izvērtējot to atbilstību mērķa pielietojumam. Izstrādātā metode sniedz iespēju veikt kontrolētus testus pie variējošiem, simulētiem gaismas apstākļiem, ļauj prognozēt enerģijas resursus

  1. Biorefinery Technologies for Biomass Conversion Into Chemicals and Fuels Towards Zero Emissions (Review) / Nulles Emisiju Princips Biomasas Konversijas Tehnoloģijās Aizstājot Fosilos Resursus (Pārskata Raksts)

    NASA Astrophysics Data System (ADS)

    Gravitis, J.; Abolins, J.

    2013-10-01

    ģijām, bet ražošanas sistēmu projektēšanai - biomasas konversijas tehnoloģiju klasterizācijā. Aplūkojot virkni konkrētu tehnoloģisko risinājumu, TSA - biomasas autohidrolīzi tvaika sprādzienā tai skaitā, iztirzātas ar biomasas konversiju, izmantošanu un augstas pievienotās vērtības produktiem - ķīmiskiem savienojumiem un degvielām, saistītās ekololoģiskās un energoefektivitātes problēmas. Uzsverot biomasas TSA pirmapstrādes universālo nozīmi dažādo tehnoloģisko kompleksu struktūrā, aplūkota TSA ietekme uz vidi, demonstrējot eMerģijas (enerģētiskās atmiņas) pieeju un "ilgtspējas" indeksu izmantošanu. Lai gan pie sasniegtā tehnoloģiskās attīstības līmeņa un patreizējiem fosilo enerģijas nesēju patēriņa tempiem nav iespējams tos pilnībā aizstāt ar bioenerģiju, bioenerģijas sektora tehnoloģiju pilnveidošana ir svarīga arī bioresursu racionālas izmantošanas un citos aspektos. Latvijas enerģētiskās neatkarības kontekstā būtiska nozīme ir tradicionālo bioenerģijas resursu izmantošanas efektivitātes celšanai un inovatīvo bioenerģijas tehnoloģiju valstiskam atbalstam.u nulles

  2. Biorefinery Technologies for Biomass Conversion Into Chemicals and Fuels Towards Zero Emissions (Review) / Nulles Emisiju Princips Biomasas Konversijas Tehnoloģijās Aizstājot Fosilos Resursus (Pārskata Raksts)

    NASA Astrophysics Data System (ADS)

    Gravitis, J.; Abolins, J.

    2013-10-01

    ģijām, bet ražošanas sistēmu projektēšanai - biomasas konversijas tehnoloģiju klasterizācijā. Aplūkojot virkni konkrētu tehnoloģisko risinājumu, TSA - biomasas autohidrolīzi tvaika sprādzienā tai skaitā, iztirzātas ar biomasas konversiju, izmantošanu un augstas pievienotās vērtības produktiem - ķīmiskiem savienojumiem un degvielām, saistītās ekololoģiskās un energoefektivitātes problēmas. Uzsverot biomasas TSA pirmapstrādes universālo nozīmi dažādo tehnoloģisko kompleksu struktūrā, aplūkota TSA ietekme uz vidi, demonstrējot eMerģijas (enerģētiskās atmiņas) pieeju un „ilgtspējas" indeksu izmantošanu. Lai gan pie sasniegtā tehnoloģiskās attīstības līmeņa un patreizējiem fosilo enerģijas nesēju patēriņa tempiem nav iespējams tos pilnībā aizstāt ar bioenerģiju, bioenerģijas sektora tehnoloģiju pilnveidošana ir svarīga arī bioresursu racionālas izmantošanas un citos aspektos. Latvijas enerģētiskās neatkarības kontekstā būtiska nozīme ir tradicionālo bioenerģijas resursu izmantošanas efektivitātes celšanai un inovatīvo bioenerģijas tehnoloģiju valstiskam atbalstam.u nulles

  3. Sail-Type Wind Turbine for Autonomous Power Supplay: Possible Use in Latvia

    NASA Astrophysics Data System (ADS)

    Sakipova, S.; Jakovics, A.

    2014-12-01

    Under the conditions of continuous increase in the energy consumption, sharply rising prices of basic energy products (gas, oil, coal), deterioration of environment, etc., it is of vital importance to develop methods and techniques for heat and power generation from renewables. The paper considers the possibility to use a sail-type wind turbine for autonomous power supply in Latvia, taking into account its climatic conditions. The authors discuss the problems of developing a turbine of the type that would operate efficiently at low winds, being primarily designed to supply power to small buildings and farms distant from centralized electricity networks. The authors consider aerodynamic characteristics of such a turbine and the dependence of the thrust moment of its pilot model on the airflow rate at different angles of attack. The pilot model with a changeable blade shape has been tested and shows a good performance. Darbs veltīts vienam no atjaunojamo enerģiju veidiem - vēja enerģijai, analizētas tās izmantošanas iespējas. Vispirms īsi raksturota vēja enerģijas izmantošana pasaulē, kā arī vērtētas izmantošanas perspektīvas no inženiertehniskā un klimatisko apstākļu viedokļa. Turpinājumā raksturota situācija Latvijā, t. sk., arī vēja potenciāla pieejamība dažādos reģionos, kā arī vēja enerģijas izmantošanas efektivitāti raksturojošie lielumi. Konstatējot problēmu, rast vēja turbīnu risinājumus Latvijas apstākļiem ar maziem vidējiem vēja ātrumiem, izveidots buras tipa turbīnas modelis. Šī modeļa raksturlielumu izpēte veikta vēja tunelī Karagandas universitātē, konstatējot relatīvi labus efektivitātes rādītājus tiešai un pretējai vēja plūsmai. Izmantojot mērījumu rezultātus, ierosināti sistēmas uzlabojumi, kurus plānots pētīt turpmāk. Šādas sistēmas potenciāli var rast lietojumu tur, kur nepieciešami autonomi enerģijas avoti.

  4. Acceleration Disturbances onboard of Geodetic Precision Space Laboratories

    NASA Astrophysics Data System (ADS)

    Peterseim, Nadja; Jakob, Flury; Schlicht, Anja

    Bartlomiej Oszczak, b@dgps.pl University of Warmia and Mazury in Olsztyn, Poland, Olsztyn, Poland Olga Maciejczyk, omaciejczyk@gmail.com Poland In this paper there is presented the study on the parameters of the ASG-EUPOS real-time RTK service NAWGEO such as: accuracy, availability, integrity and continuity. Author's model is used for tests. These parameters enable determination of the quality of received information and practical applications of the service. Paper includes also the subject related to the NAWGEO service and algorithms used in determination of mentioned parameters. The results of accuracy and precision analyses and study on availability demonstrated that NAWGEO service enables a user a position determination with a few centimeters accuracy with high probability in any moment of time.

  5. First chemical separation and identification of Seaborgium

    SciTech Connect

    Tuerler, A.; Eichler, B.; Jost, D.T.; Hoffman, D.C.

    1997-12-31

    The chemical properties of element 106 (Seaborgium, Sg) were successfully studied using the On-line Gas Chromatography Apparatus (OLGA III). After chemical separation of Sg in the form of volatile oxichlorides the nuclides {sup 265}Sg and {sup 266}Sg were unambiguously identified and their half-lives were determined for the first time. The Sg nuclides were produced from the {sup 248}Cm({sup 22}Ne, 4,5n){sup 266,265}Sg reaction at the GSI Darmstadt UNILAC accelerator. Simultaneously, short-lived W nuclides were produced from a small admixture of {sup 152}Gd to the Cm target material. As predicted by relativistic calculations and by extrapolations of chemical properties, it was demonstrated that Sg oxichlorides are indeed less volatile than their lighter homologue W- and Mo-oxichlorides.

  6. Large-scale properties of the solar wind in the inner heliosphere

    NASA Astrophysics Data System (ADS)

    Khabarova, Olga; Obridko, Vladimir; Zharkova, Valentina; Veselov, Mikhail

    Since the solar wind phenomenon has been revealed and confirmed, one of the most intriguing problems was to understand processes in the solar atmosphere and their relation with the solar wind characteristics at different distances from the Sun. Analysis of multi-spacecraft measurements of plasma parameters and the interplanetary magnetic field provides us with knowledge about the heliosphere from global to small scales. Comparisons of observations with models, describing small-scale processes, usually give more positive results than in the case of models comparison with the solar wind properties at the scales larger than several proton gyroradii. For example, Parker-like models face with big problems in their attempts to predict the solar wind plasma and, especially, the behaviour of the interplanetary magnetic field. Observations show that the radial component of the interplanetary magnetic field depends on heliolatitude and radially decreases with a slope of -5/3 instead of the predicted slope of -2 (Khabarova, Obridko, ApJ, 2012; Khabarova, Astronomy Reports, 2013). This may be determined by small-scale processes occurring in some vicinity of the heliospheric current sheet and related to the magnetic reconnection (Zharkova, Khabarova, ApJ, 2012). In this report we present results of data analysis of eight spacecraft to study variations of plasma, the electric and magnetic field with distance and heliolatitude. begin{enumerate} Zharkova V., Khabarova O., Particle Acceleration in the Reconnecting Heliospheric Current Sheet: Solar Wind Data Versus 3D PIC Simulations, Astrophysical Journal, 2012, V.752, 1, 35 doi:10.1088/0004-637X/752/1/35 begin{enumerate} Khabarova Olga, and Obridko Vladimir, Puzzles of the Interplanetary Magnetic Field in the Inner Heliosphere, 2012, Astrophysical Journal, 761, 2, 82, doi:10.1088/0004-637X/761/2/82 begin{enumerate} Khabarova Olga V., The interplanetary magnetic field: radial and latitudinal dependences. Astronomy Reports, 2013

  7. High-Temperature Nuclear Reactors (Overview. Part 1) / Augstas Temperatūras Kodolreaktori (Pārskata raksts) 1. daļa

    NASA Astrophysics Data System (ADS)

    Ekmanis, J.; Tomsons, E.; Zeltiņš, N.

    2013-02-01

    At the Generation IV International Forum (GIF) of 2001 the measures were approved which are necessary for the development of future generation nuclear reactors (NRs). Six best high-temperature NR technologies were selected, with the main criteria being the safe and economically profitable operation, long-term use, protection against the employment of nuclear material for military purposes and terroristic attacks as well as technologies of fuel close cycle in order to increase the amount of fission material and decrease the amount of highly radioactive waste. In four of the technologies, apart from electricity production also hydrogen is obtained. Part 1 presents a generalized description of the high-temperature NRs, their comparative characteristics and history, with the stopped and operational HTNRs outlined. The properties of different type nuclear fuels are described in detail Ceturtās paaudzes kodolreaktoru starptautiskā forumā 2001.gadā nolēma par nepieciešamiem pasākumiem nākamās paaudzes kodolreaktoru izstrādei. Ir atlasītas sešas reaktoru tehnoloģijas, kuras lietderīgi turpmāk izstrādāt. Tās atlasītas ņemot vērā to drošu un ekonomiski izdevīgu darbību, ilgtspējīgu izmantošanu, aizsardzību pret materiālu izmantošanu militārām vajadzībām un teroristu uzbrukumiem, slēgtā degvielas cikla izmantošanu, lai palielinātu kodoldalīšanās materiālu daudzumu un samazinātu augstas aktivitātes atkritumu daudzumu, kurus būs jāapglabā. Četras no plānotām tehnoloģijām bez elektroenerģijas ieguves varēs ražot ūdeņradi. 1. daļā ietverts vispārīgs apraksts par augstas temperatūras kodolreaktoriem, to salīdzinājums pēc raksturlielumiem, pēc attīstības vēstures. Apskatīti gan apturētie, gan strādājošie reaktori, to kodoldegvielas

  8. Methods for Estimation of the Riverflow Potential for Hydrokinetic Power Generation

    NASA Astrophysics Data System (ADS)

    Kalnacs, A.; Kalnacs, J.; Mutule, A.; Persis, U.

    2014-04-01

    The authors propose methods for estimation of the potential of riverflows for electricity production at hydrokinetic power plants. The methods can be applied to any river or its span where it is possible to move using a floating means. The methodical part includes validation of the flow velocity and bed depth measurement data using the available statistics as well as a case study. Analysis of the in-river measurement results for the selected spans of river Daugava shows that the flow rate variations exert only a minor influence on the flow velocity at particular sites. This testifies the hydrokinetic power plants as stable and predictable sources of electrical energy, both in a long term and, especially, in a short one. The proposed estimation methods could be useful in explorations of rivers, making them simpler and cheaper. Rakstā ir aprakstīta metodika upes posmu potenciāla novērtēšanai elektroenerģijas ražošanai ar hidrokinētiskajām iekārtām. Metodiku var izmantot jebkuras upes vai upes posma vērtēšanai, kurā iespējams pārvietoties ar laivu vai citu peldlīdzekli un noturēt šo peldlīdzekli nekustīgu attiecībā pret upes krastiem. Metodika atvieglo un samazina izmaksas turpmākiem pētījumiem. Straumju ātruma mērījumu datu validācijai un papildus informācijai upju (posmu) novērtēšanai, ļoti noderīgi ir upju novērojumu staciju statistiskie dati par upju caurteces apjomiem. To izmantošana ir iekļauta metodikā un tās lietošanas piemērā. Balstoties uz Daugavā veikto mērījumu analīzi, ir secināts, ka caurplūdes izmaiņas maz ietekmē straumes ātrumu konkrētajā vietā. Tas apliecina, ka hidrokinētiskās iekārtas ir stabils un viegli prognozējams elektroenerģijas avots gan ilgtermiņā, gan, jo sevišķi, īstermiņā.

  9. The magnetic flux excess effect as a consequence of non-Parker radial evolution of interplanetary magnetic field

    NASA Astrophysics Data System (ADS)

    Khabarova, Olga

    2015-04-01

    The “magnetic flux excess” effect is exceeding of magnetic flux Fs=4π|Br|r2 measured by distant spacecraft over the values obtained through measurements at the Earth’s orbit (Owens et al., JGR, 2008). Theoretically, its conservation should take place at any heliocentric distance r further than 10 solar radii, which means that the difference between the flux measured at 1 AU and Fs observed in another point in the heliosphere should be zero. However, the difference is negative closer to the Sun and increasingly positive at larger heliocentric distances. Possible explanations of this effect are continuously discussed, but the consensus is yet not reached.It is shown that a possible source of this effect is the solar wind expansion not accordingly with the Parker solution at least at low heliolatitudes. The difference between the experimentally found (r-5/3) and commonly used (r-2) radial dependence of the radial component of the IMF Br may lead to mistakes in the IMF point-to-point recalculations (Khabarova & Obridko, ApJ, 2012; Khabarova, Astronomy Reports, 2013). Using the observed Br (r) dependence, it is easy to find the variation of difference between the magnetic flux Fs(r) at certain heliocentric distance r and Fs_1AU at 1 AU, which can be calculated as Fs(r)-Fs_1AU =4π·(B1AU /[1AU]-5/3) (r2-5/3 -[1AU]2-5/3) (Khabarova, Astronomy Reports, 2013).The possible influence of presence of the heliospheric current sheet near the ecliptic plane on the picture of magnetic field lines and consequent deviation from the Parker's model is discussed.- Khabarova Olga, and Obridko Vladimir, Puzzles of the Interplanetary Magnetic Field in the Inner Heliosphere, 2012, Astrophysical Journal, 761, 2, 82, doi:10.1088/0004-637X/761/2/82, http://arxiv.org/pdf/1204.6672v2.pdf- Olga V. Khabarova, The interplanetary magnetic field: radial and latitudinal dependences. Astronomy Reports, 2013, Vol. 57, No. 11, pp. 844-859, http://arxiv.org/ftp/arxiv/papers/1305/1305.1204.pdf

  10. Investigation of geotechnical parameters from CSEM mapping and monitoring data at the oases Kharga and Baris of Sahara desert, Egypt

    NASA Astrophysics Data System (ADS)

    Hachay, Olga; Khachay, Oleg; Attia, Magdy; Khalil, Ahmed; Mekkawi, Mahmoud; Soliman, Mamdouh

    2016-04-01

    The site of investigation, oasis Kharga, is located at about 600 km south of Cairo, Egypt; Baris is about 90 km from Kharga also to south and towards more inside the desert. The work was aimed to investigate the rock mass stability at Baris and to estimate the water intake in the Oasis Kharga. A controlled source electromagnetic (CSEM) approach developed earlier by IGF UB RAS (Geophysical Federal Institute, Ural Branch of Russian Academy of Science) is applied to image the ranked deformation levels in the massive structure of the Baris. The wide profile system of observation has been used to monitor the three components of the alternating magnetic field along predefined measuring lines in the study area. Here we can show the first results that we shall continue during some cycles of monitoring. The second part of our work was linked with mapping the massif structure inside the oasis City, where only using our device we could construct the geoelectrical sections for 5 profiles and show the real structure of the water volume and its complicated structure up to 200 meters depth recording the values of real not apparent resistivity. The analytical treatments provided good information about the structure of the rock massive and its rank of degradation, the lateral distribution of the geotechnical heterogeneity, and finally a conclusive outcome about foundation stability. We can conclude that the general dynamic state close to the destruction level within the investigation areas is getting worse over the time; this is reflected in the crack's densities and positions, also on the changes in the lateral distribution of geoelectrical heterogeneity as an indicator of the saturation of the surface rock in the study area with water [1,2]. References 1. Magdy A. Atya, Olga A. Hachay, Mamdouh M. Soliman, Oleg Y. Khachay, Ahmed B. Khalill, Mahmoud Gaballah, Fathy F.Shaaban and Ibrahim A.El. Hemali. CSEM imaging of the near surface dynamics and its impact for foundation stability

  11. The origin of fluids and gases in the DFDP-2B borehole, New Zealand; insight from on-line mud gas monitoring

    NASA Astrophysics Data System (ADS)

    Mathewson, Loren; Wiersberg, Thomas; Niedermann, Samuel; Erzinger, Joerg; Menzies, Catriona; Toy, Virginia; Zimmer, Martin

    2016-04-01

    The Deep Fault Drilling Project (DFDP) aims to improve our understanding of the Alpine Fault Zone, a tectonically active fault system in New Zealand known to rupture in large events, by deep scientific drilling. The borehole DFDP-2B approached the Alpine Fault at depth, reaching a final depth of 892 m. During drilling, gas was extracted from returning drilling mud and changes in the gas composition were tracked by mass spectrometry (N2, O2, Ar, CO2, CH4, He, and H2), gas chromatography (CH4, C2H6, C3H8, i/n-C4H10), and alpha-spectrometry for 222Rn. The rapid formation of mud wall cake seals the borehole from fluid inflow along the borehole; hence formation-derived gases enter mostly at the drill bit during drilling. Gas was sampled for offline analyses on noble gas and stable isotopes to complement the dataset. Apart from an atmospheric input, the gases in drilling mud derive from the pore space of rock, crushed at the drill bit, and from permeable layers intersected by the borehole. OLGA thus may provide information on fluid origins, flow rates and paths, fluid-rock interactions along these paths, and the permeability structure of the faulted rock mass. The principle formation-derived gases found in drilling mud during drilling of DFDP-2 were CO2 (≤1.7 vol.-%), H2 (<2.5 vol.-%), and CH4 (≤0.18 vol.-%), with minor contributions of He. Zones of enhanced gas concentrations and high radon activity are interpreted to reflect intervals of active fluid flow through highly fractured and faulted rock. Air-corrected 3He/4He values of samples from 236m (0.68 Ra), 610m (1.03 Ra) and 707m (0.63 Ra) show mantle helium contributions similar to those measured in hot springs along the Alpine Fault, e.g. Fox River (0.64 Ra), Copland (0.42 Ra), Lower Wanganui (0.81 Ra). CH4/C2H6 (~20) and δ13C of methane (-31.7 ‰ PDB) underpin a thermogenic origin of hydrocarbons at depths below 600m, while mixing with biogenic gas is indicated at shallower depth (δ13C of methane= -46.7

  12. Field Research and Laboratory Sample Analysis of Dust-Water-Organics-Life from Mars Analogue Extreme Environments

    NASA Astrophysics Data System (ADS)

    Foing, Bernard H.; Ehrenfreund, Pascale; ILEWG EuroMoonMars Team

    2015-08-01

    , IJA 2011, 10, vol. 3. 137-305Credits: ILEWG EuroMoonMars Team

  13. Electric Machines with Non-Radially Mounted Rectangular Permanent Magnets / Elektriskās Mašīnas Ar Prizmatiskiem Neradiāli Novietotiem Pastāvīgajiem Magnētiem

    NASA Astrophysics Data System (ADS)

    Levin, N.; Pugachev, V.; Dirba, J.; Lavrinovicha, L.

    2013-04-01

    The authors analyze the advantages and disadvantages of brushless synchronous electric machines with radially and non-radially mounted rectangular permanent magnets. The results show that the proposed nonradial mounting of permanent magnets considered in the paper, in several cases (e.g. multi-pole brushless generators with tooth windings of the armature) allows achievement of the following advantages: better technology of manufacturing the electric machine owing to simple packing of the stator winding in the stator open slots, which also increases the copper slot fillfactor; reduction in the mass-and-size of permanent magnets at least twice; significantly lower cost of the electric machine; and, finally, its greater specific power. Darbā tiek analizētas priekšrocības un trūkumi sinhronām bezkontaktu mašīnām ar radiāli un neradiāli novietotiem prizmatiskiem pastāvīgajiem magnētiem. Parādīts, ka vairākos gadījumos, piemēram, daudzpolu bezkontaktu sinhronajos ģeneratoros ar zobu tinumiem, neradiāls pastāvīgo magnētu izvietojums nodrošina vairākas priekšrocības: uzlabojas mašīnas izgatavošanas tehnoloģija, jo statora atvērtajās rievās vieglāk novietot tinumus un iespējams sasniegt augstāku rievas aizpildījuma koeficientu; samazinās pastāvīgo magnētu masa un izmaksas; palielinās mašīnas īpatnēja jauda.

  14. Biophotonic technologies for non-invasive assessment of skin condition and blood microcirculation

    NASA Astrophysics Data System (ADS)

    Spigulis, J.

    2012-10-01

    The main results obtained at the author’s laboratory over the recent five years with respect to optical in-vivo skin assessment are reviewed. The exploited optical properties of human skin are briefly regarded, with following description of the newly developed methods and prototype devices. In particular, six non-invasive diagnostic and monitoring technologies based on skin autofluorescence photobleaching, diffuse reflectance spectrometry, multispectral skin imaging, and remission photoplethysmography have been proposed, experimentally implemented, and clinically tested. Sniegts pārskats par autora laboratorijā pēdējo piecu gadu laikā iegūtajiem in-vivo ādas optiskā novērtējuma svarīgākajiem rezultātiem. Īsumā aplūkotas dzīvas ādas optiskās īpašības, turpinājumā aprakstot jaunradītās metodes un prototipa ierīces. Piedāvātas, eksperimentāli realizētas un klīniski pārbaudītas sešas neinvazīvas diagnostikas un monitoringa tehnoloģijas, kas balstītas uz ādas autofluorescences fotoizbalēšanu, difūzās refleksijas spektrometriju, multispektrālu ādas attēlošanu un remisijas fotopletizmogrāfiju.

  15. Physical and Technical Energy Problems: Testing of the Prototype for State Estimation of Large-Scale Power Systems / Lielo Energosistēmu Stāvokļa Novērtēšanas Prototipa Testēšana

    NASA Astrophysics Data System (ADS)

    Kochukov, O.; Briņķis, K.; Mutule, A.

    2013-08-01

    The paper describes the algorithm for distributed state estimation (SE) and is focused on its testing and validation. For this purpose, different events in the modeled power system of the 330-750 kV electrical ring Latvia - Lithuania - Belarus - Smolensk - Moscow - St. Petersburg - Estonia - Latvia were considered. The methods for testing the Inter-TSO SE prototype and dynamic network monitoring & modeling are based on comparison of the available SCADA data about real events with those of SE calculation. In total, four operational states were studied, including initial, accident and two post-accident operational states Rakstā tiek aprakstīti, testēti un novērtēti izkliedēta stāvokļa novērtēšanas algoritmi. Testēšanas nolūkos tika izmantoti dažādi 330-750 kV elektriskā loka Latvija - Lietuva - Baltkrievija - Smoļenska - Maskava - Pēterburga - Igaunija - Latvija modelēti scenāriji. Prototipa testēšanas metodoloģija balstīta uz pieejamo SCADA datu salīdzināšanu ar stāvokļa novērtēšanas prototipa aprēķina rezultātiem. Kopumā apskatīti sākotnējais, avārijas un divi pēcavārijas režīmi

  16. Small Hydropower in Latvia and Intellectualization of its Operating Systems / Par Mazo HIDROENERĢĒTIKU LATVIJĀ un TĀS Staciju VADĪBAS SISTĒMAS INTELEKTUALIZĀCIJU

    NASA Astrophysics Data System (ADS)

    Mahnitko, A.; Gerhards, J.; Linkevics, O.; Varfolomejeva, R.; Umbrasko, I.

    2013-12-01

    The authors estimate the potential for power generation from water resources of small and medium-sized rivers, which are abundant in Latvia. They propose the algorithm for optimal operation of a small-scale hydropower plant (SHPP) at the chosen optimality criterion in view of the plant's participation in the market. The choice of SHPP optimization algorithm is made based on two mathematical programming methods - dynamic and generalized reduced gradient ones. Approbation of the algorithm is illustrated by an example of optimized SHPP operation. Darbā analizētas tradicionālo un pieejamo vietējo atjaunojamo energoresursu - mazo un vidējo upju hidroresursa izmantošanas iespējas Latvijas enerģētikā. Tiek sniegts faktiskais materiāls šajā jautājumā, kas iegūts, balstoties uz oficiālos avotos publicētiem citu autoru iepriekš veiktajiem pētījumiem. Tiek atzīmēts, ka teritoriju, kas atrodas mazo upju tuvumā un nav ietvertas centralizētās elektroapgādes sistēmā, saimnieciskā apgūšana rada apstākļus patērētāju stimulēšanai izmantot autonomus vietējos energoresursus, ieskaitot hidroenerģiju, izmantojošas mazas jaudas energoiekārtas. Atjaunojamās enerģijas tehnoloģiju un iekārtu pastāvīga attīstība un pilnveidošanās veicinās mazo upju plūsmas izmantošanas elektroenerģijas ražošanas efektivitātes paaugstināšanos. Mūsdienu enerģētikas attīstības koncepcija, kas balstīta uz viedo tīklu (smart grids) izveidi, ļauj paaugstināt mazās hidroenerģētikas darbības efektivitāti, integrējot to elektroenerģētiskajā sistēmā. Mazo hidroelektrostaciju (MHES) darbības vadības sistēmas intelektualizācijas pamatā jābūt kompleksam algoritmam un programmām, kas ļauj tiešsaistes (online) režīmā nodrošināt izdevīgu MHES darbības grafiku (režīmu) maksimālā ienākuma gūšanai, balstoties uz zināmu elektroenerģijas cenas prognozi attiecīgajam laika periodam (diennaktij). MHES darbības optimiz

  17. Analysis of the interplanetary magnetic field observations at different heliocentric distances

    NASA Astrophysics Data System (ADS)

    Khabarova, Olga

    2013-04-01

    Multi-spacecraft measurements of the interplanetary magnetic field (IMF) from 0.29 AU to 5 AU along the ecliptic plane have demonstrated systematic deviations of the observed IMF strength from the values predicted on the basis of the Parker-like radial extension models (Khabarova, Obridko, 2012). In particular, it was found that the radial IMF component |Br| decreases with a heliocentric distance r with a slope of -5/3 (instead of r-2 expansion law). The current investigation of multi-point observations continues the analysis of the IMF (and, especially, Br) large-scale behaviour, including its latitudinal distribution. Additionally, examples of the mismatches between the expected IMF characteristics and observations at smaller scales are discussed. It is shown that the observed effects may be explained by not complete IMF freezing-in to the solar wind plasma. This research was supported by the Russian Fund of Basic Researches' grants Nos.11-02-00259-a, and 12-02-10008-K. Khabarova Olga, and Obridko Vladimir, Puzzles of the Interplanetary Magnetic Field in the Inner Heliosphere, 2012, Astrophysical Journal, 761, 2, 82, doi:10.1088/0004-637X/761/2/82, http://arxiv.org/pdf/1204.6672v2.pdf

  18. Planetary Systems and the Origins of Life

    NASA Astrophysics Data System (ADS)

    Pudritz, Ralph; Higgs, Paul; Stone, Jonathon

    2013-01-01

    Preface; Part I. Planetary Systems and the Origins of Life: 1. Observations of extrasolar planetary systems Shay Zucker; 2. The atmospheres of extrasolar planets L. Jeremy Richardson and Sara Seager; 3. Terrestrial planet formation Edward Thommes; 4. Protoplanetary disks, amino acids and the genetic code Paul Higgs and Ralph Pudritz; 5. Emergent phenomena in biology: the origin of cellular life David Deamer; Part II. Life on Earth: 6. Extremophiles: defining the envelope for the search for life in the Universe Lynn Rothschild; 7. Hyperthermophilic life on Earth - and on Mars? Karl Stetter; 8. Phylogenomics: how far back in the past can we go? Henner Brinkmann, Denis Baurain and Hervé Philippe; 9. Horizontal gene transfer, gene histories and the root of the tree of life Olga Zhaxybayeva and J. Peter Gogarten; 10. Evolutionary innovation versus ecological incumbency Adolf Seilacher; 11. Gradual origins for the Metazoans Alexandra Pontefract and Jonathan Stone; Part III. Life in the Solar System?: 12. The search for life on Mars Chris McKay; 13. Life in the dark dune spots of Mars: a testable hypothesis Eörs Szathmary, Tibor Ganti, Tamas Pocs, Andras Horvath, Akos Kereszturi, Szaniszlo Berzci and Andras Sik; 14. Titan: a new astrobiological vision from the Cassini-Huygens data François Raulin; 15. Europa, the Ocean Moon: tides, permeable ice, and life Richard Greenberg; Index.

  19. Comparison of different methods for the assessment of the urban heat island in Stuttgart, Germany

    NASA Astrophysics Data System (ADS)

    Ketterer, Christine; Matzarakis, Andreas

    2015-09-01

    This study of the urban heat island (UHI) aims to support planning authorities by going beyond the traditional way of urban heat island studies. Therefore, air temperature as well as the physiologically equivalent temperature (PET) were applied to take into account the effect of the thermal atmosphere on city dwellers. The analysis of the urban heat island phenomenon of Stuttgart, Germany, includes a long-term frequency analysis using data of four urban and one rural meteorological stations. A (high resolution map) of the UHI intensity and PET was created using stepwise multiple linear regression based on data of car traverses as well as spatial data. The mapped conditions were classified according to the long-term frequency analysis. Regarding climate change, the need for adaptation measures as urban greening is obvious. Therefore, a spatial analysis of quantification of two scenarios of a chosen study area was done by the application of a micro-scale model. The nocturnal UHI of Stuttgart is during 15 % stronger than 4 K in the city center during summer when daytime heat stress occurs during 40 %. A typical summer condition is mapped using statistical approach to point out the most strained areas in Stuttgart center and west. According to the model results, the increase in number of trees in a chosen area (Olga hospital) can decrease PET by 0.5 K at 22:00 CET but by maximum 27 K at 14:00 CET.

  20. Comparison of different methods for the assessment of the urban heat island in Stuttgart, Germany.

    PubMed

    Ketterer, Christine; Matzarakis, Andreas

    2015-09-01

    This study of the urban heat island (UHI) aims to support planning authorities by going beyond the traditional way of urban heat island studies. Therefore, air temperature as well as the physiologically equivalent temperature (PET) were applied to take into account the effect of the thermal atmosphere on city dwellers. The analysis of the urban heat island phenomenon of Stuttgart, Germany, includes a long-term frequency analysis using data of four urban and one rural meteorological stations. A (high resolution map) of the UHI intensity and PET was created using stepwise multiple linear regression based on data of car traverses as well as spatial data. The mapped conditions were classified according to the long-term frequency analysis. Regarding climate change, the need for adaptation measures as urban greening is obvious. Therefore, a spatial analysis of quantification of two scenarios of a chosen study area was done by the application of a micro-scale model. The nocturnal UHI of Stuttgart is during 15 % stronger than 4 K in the city center during summer when daytime heat stress occurs during 40 %. A typical summer condition is mapped using statistical approach to point out the most strained areas in Stuttgart center and west. According to the model results, the increase in number of trees in a chosen area (Olga hospital) can decrease PET by 0.5 K at 22:00 CET but by maximum 27 K at 14:00 CET.

  1. Permian nonmarine bivalve zonation of the East European platform

    NASA Astrophysics Data System (ADS)

    Silantiev, V. V.

    2014-01-01

    New finds and revision of available collections of nonmarine bivalves provided grounds for development of a zonal scale for terrestrial sequences of the Permian System based on species belonging to the genus Palaeomutela Amalitzky, 1891, which are characterized by regular changes in the structure of the shell hinge. The scale includes two parallel zonal successions that are based on the stratigraphic distribution and evolutionary trends of two morphological lineages of the genus. The zonal succession based on development of the P. umbonata group (dwellers of mobile waters and silty-psammitic substrates) includes 11 range zones: stegocephalum, ovatiformis, umbonata, quadriangularis, krotowi, wohrmani, numerosa, ulemensis, keyserlingi, curiosa, golubevi. The zonal succession based on development of the P. castor group (dwellers of calm waters and silty-pelitic substrates) includes eight range zones: larae, castor, olgae, doratioformis, marposadica, fischeri, obunca, amalitzkyi. The proposed zonal units are correlated with scales based on ostracod, fish, and tetrapod fossils. New species Palaeomutela golubevi sp. nov. and P. amalitzkyi sp. nov. are described with the extended diagnosis of the genus Palaeomutela.

  2. New Space Weather and Nonlinear Waves and Processes Prize announced for 2013

    NASA Astrophysics Data System (ADS)

    Thompson, Victoria

    2012-01-01

    At the 2011 Fall Meeting in San Francisco, Calif., AGU announced the creation of a new award: the Space Weather and Nonlinear Waves and Processes Prize. The prize, which is being made possible by a generous contribution from longtime AGU members and NASA Jet Propulsion Laboratory (JPL), California Institute of Technology, scientists Bruce Tsurutani and Olga Verkhoglyadova, will recognize an AGU member scientist and will come with a $10,000 award. Tsurutani has served as a researcher with JPL since 1972 and is currently a senior research scientist. He was also the president of AGU's Space Physics and Aeronomy section from 1990 to 1992 and is a recipient of AGU's John Adam Fleming Medal, given “for original research and technical leadership in geomagnetism, atmospheric electricity, aeronomy, space physics, and related sciences.” Verkhoglyadova served as a professor of space physics in the Department of Astrophysics and Space Physics at Taras Shevchenko National University of Kyiv, in the Ukraine, prior to coming to the United States. Their leadership and dedication to AGU and to their field are apparent in their passion for this prize.

  3. Free-living nematode species (Nematoda) dwelling in hydrothermal sites of the North Mid-Atlantic Ridge

    NASA Astrophysics Data System (ADS)

    Tchesunov, Alexei V.

    2015-12-01

    Morphological descriptions of seven free-living nematode species from hydrothermal sites of the Mid-Atlantic Ridge are presented. Four of them are new for science: Paracanthonchus olgae sp. n. (Chromadorida, Cyatholaimidae), Prochromadora helenae sp. n. (Chromadorida, Chromadoridae), Prochaetosoma ventriverruca sp. n. (Desmodorida, Draconematidae) and Leptolaimus hydrothermalis sp. n. (Plectida, Leptolaimidae). Two species have been previously recorded in hydrothermal habitats, and one species is recorded for the first time in such an environment. Oncholaimus scanicus (Enoplida, Oncholaimidae) was formerly known from only the type locality in non-hydrothermal shallow milieu of the Norway Sea. O. scanicus is a very abundant species in Menez Gwen, Lucky Strike and Lost City hydrothermal sites, and population of the last locality differs from other two in some morphometric characteristics. Desmodora marci (Desmodorida, Desmodoridae) was previously known from other remote deep-sea hydrothermal localities in south-western and north-eastern Pacific. Halomonhystera vandoverae (Monhysterida, Monhysteridae) was described and repeatedly found in mass in Snake Pit hydrothermal site. The whole hydrothermal nematode assemblages are featured by low diversity in comparison with either shelf or deep-sea non-hydrothermal communities. The nematode species list of the Atlantic hydrothermal vents consists of representatives of common shallow-water genera; the new species are also related to some shelf species. On the average, the hydrothermal species differ from those of slope and abyssal plains of comparable depths by larger sizes, diversity of buccal structures, presence of food content in the gut and ripe eggs in uteri.

  4. New hadronic currents in TAUOLA: for confrontation with the experimental data

    NASA Astrophysics Data System (ADS)

    Wąs, Z.

    2012-04-01

    The status of implementation of new hadronic currents into the Monte Carlo system for simulation of τ-lepton production and decay in high-energy accelerator experiments is reviewed. Since the τ-lepton conference in 2010 substantial progress was achieved: (i) For the TAUOLA Monte Carlo generator of τ-lepton decays, automated and simultaneous use of many versions of form factors for the calculation of optional weights for fits was developed and checked to work in the Belle and BaBar software environment. Alternative parameterizations of hadronic currents based on the Resonance Chiral approach are available now. This was achieved for more than 88% of the total τ hadronic width. (ii) the TAUOLA universal interface based on HepMC (the C++ event record) is available. This is the case for C++ users of PHOTOS Monte Carlo for radiative corrections in decays, as well. An algorithm for weighted events to explore spin effects in analysis of hard processes was prepared. (iii) Kernels featuring a complete first-order matrix element are available now for PHOTOS users interested in decays of Z and W bosons. New tests with different options of matrix elements for those and for K decays are available as well. Presented results illustrate the status of the projects performed in collaboration with Zofia Czyczula, Nadia Davidson, Tomasz Przedziński, Olga Shekhovtsova, Elżbieta Richter-Wąs, Pablo Roig, Qingjun Xu and others.

  5. TAUOLA for simulation of tau decay and production: perspectives for precision low energy and LHC applications

    NASA Astrophysics Data System (ADS)

    Wąs, Z.

    2011-09-01

    The status of Monte Carlo system for the simulation of τ-lepton production and decay in high-energy accelerator experiments is reviewed. Since the previous τ-lepton conference in 2008 some practical modifications have been introduced: (i) For the TAUOLA Monte Carlo generator of τ-lepton decays, automated and simultaneous use of many versions of form-factors for the calculation of optional weights for fits was developed and checked to work in the Belle and BaBar software environment. Work on alternative parametrizations of hadronic decays is advanced. (ii) the TAUOLA universal interface based on HepMC (the C++ event record) is now public. A similar interface for PHOTOS is now also public. (iii) Extension of the PHOTOS Monte Carlo for QED bremsstrahlung in decays featuring kernels based on complete first order matrix element are gradually becoming widely available thanks to properties of the new, HepMC based interface. (iv) Systematic tests of the programs with the help of MC-TESTER are now available for FORTRAN and C++ users. The results presented here illustrate the status of the projects performed in collaboration with Nadia Davidson, Piotr Golonka, Gizo Nanava, Tomasz Przedziński, Olga Shekhovtsova, Elżbieta Richter-W̨as, Pablo Roig, Qingjun Xu and others.

  6. Slug-sizing/slug-volume prediction: State of the art review and simulation

    SciTech Connect

    Burke, N.E.; Kashou, S.F.

    1996-08-01

    Slug flow is a flow pattern commonly encountered in offshore multiphase flowlines. It is characterized by an alternate flow of liquid slugs and gas pockets, resulting in an unsteady hydrodynamic behavior. All important design variables, such as slug length and slug frequency, liquid holdup, and pressure drop, vary with time and this makes the prediction of slug flow characteristics both difficult and challenging. This paper reviews the state of the art methods in slug-catcher sizing and slug-volume predictions. In addition, history matching of measured slug flow data is performed using the OLGA transient simulator. This paper reviews the design factors that impact slug-catcher sizing during steady state, during transient, during pigging, and during operations under a process-control system. The slug-tracking option of the simulator is applied to predict the slug length and the slug volume during a field operation. This paper will also comment on the performance of common empirical slug-prediction correlations.

  7. Summary of the 2nd International Symposium on Arthrogryposis, St. Petersburg, Russia, September 17-19, 2014.

    PubMed

    Hall, Judith G; Agranovich, Olga; Ogranovich, Alga; Pontén, Eva; Pontén, Ava; van Bosse, Harold J P

    2015-06-01

    Enormous progress has been made in understanding the etiology and therapies for arthrogryposis (multiple congenital contractures). A 2nd International Symposium on Arthrogryposis was sponsored by the Turner Institute in St. Petersburg, Russia. Olga Agranovich, Head of the Arthrogryposis Department of the Turner Institute, organized this special meeting. Care providers from multiple disciplines from all over the world representing 18 nations attended. Participants included: Pediatric orthopedic specialists, rehabilitation physicians, occupational therapists, physical therapists, medical geneticists, neurologists, craniofacial physicians, psychologists, developmental biologists, as well as representatives from parent support groups. The 1st symposium established the need for a collaborative and interdisciplinary approach to the treatment of arthrogryposis, engagement of parent support organizations, and the aim for more research. The Second Symposium highlighted the continuing need for more research on various therapies, identification of different types of arthrogryposis, standardized descriptions of severity, development of new orthotics, improved prenatal diagnosis, and studying adult outcome. Major progress has been made on both upper and lower limb treatments.

  8. Report on the 2011 Critical Assessment of Function Annotation (CAFA) meeting

    SciTech Connect

    Friedberg, Iddo

    2015-01-21

    The Critical Assessment of Function Annotation meeting was held July 14-15, 2011 at the Austria Conference Center in Vienna, Austria. There were 73 registered delegates at the meeting. We thank the DOE for this award. It helped us organize and support a scientific meeting AFP 2011 as a special interest group (SIG) meeting associated with the ISMB 2011 conference. The conference was held in Vienna, Austria, in July 2011. The AFP SIG was held on July 15-16, 2011 (immediately preceding the conference). The meeting consisted of two components, the first being a series of talks (invited and contributed) and discussion sections dedicated to protein function research, with an emphasis on the theory and practice of computational methods utilized in functional annotation. The second component provided a large-scale assessment of computational methods through participation in the Critical Assessment of Functional Annotation (CAFA). The meeting was exciting and, based on feedback, quite successful. There were 73 registered participants. The schedule was only slightly different from the one proposed, due to two cancellations. Dr. Olga Troyanskaya has canceled and we invited Dr. David Jones instead. Similarly, instead of Dr. Richard Roberts, Dr. Simon Kasif gave a closing keynote. The remaining invited speakers were Janet Thornton (EBI) and Amos Bairoch (University of Geneva).

  9. Predictability of Malaria Transmission Intensity in the Mpumalanga Province, South Africa, Using Land Surface Climatology and Autoregressive Analysis

    NASA Technical Reports Server (NTRS)

    Grass, David; Jasinski, Michael F.; Govere, John

    2003-01-01

    There has been increasing effort in recent years to employ satellite remotely sensed data to identify and map vector habitat and malaria transmission risk in data sparse environments. In the current investigation, available satellite and other land surface climatology data products are employed in short-term forecasting of infection rates in the Mpumalanga Province of South Africa, using a multivariate autoregressive approach. The climatology variables include precipitation, air temperature and other land surface states computed by the Off-line Land-Surface Global Assimilation System (OLGA) including soil moisture and surface evaporation. Satellite data products include the Normalized Difference Vegetation Index (NDVI) and other forcing data used in the Goddard Earth Observing System (GEOS-1) model. Predictions are compared to long- term monthly records of clinical and microscopic diagnoses. The approach addresses the high degree of short-term autocorrelation in the disease and weather time series. The resulting model is able to predict 11 of the 13 months that were classified as high risk during the validation period, indicating the utility of applying antecedent climatic variables to the prediction of malaria incidence for the Mpumalanga Province.

  10. Estimating the Soil Instability from CSEM Monitoring Data at the City of 15th May, Egypt

    NASA Astrophysics Data System (ADS)

    Hachay, Olga, ,, Prof.; Atya, Magdy, ,, Prof.; Khachay, Oleg; El Sayed, El Said A. El Sayed1 A.

    2014-05-01

    The site of investigation, 15th May city, is a new suburb of Helwan, at about 35 km south of Cairo, Egypt. The work is aimed to investigate the rock mass stability at 'Quarter 27' in 15th May City. A controlled source electromagnetic (CSEM) approach developed earlier by IGF UB RAS (Geophysical Federal Institute, Ural Branch of Russian Academy of Science) is applied to image the ranked deformation levels in the massive structure. The wide profile system of observation has been used to monitor the three components of the alternating magnetic field along predefined measuring lines in the study area. Four cycles of observation have been carried out in 2008, 2010, 2011, and 2012. The acquired data sets have been subjected to analytical processing procedure to estimate the changes in the geotechnical parameters during the time of these four cycles of observation. The analytical treatments provided good information about the structure of the rock massive and its rank of degradation, the lateral distribution of the geotechnical heterogeneity, and finally a conclusive outcome about foundation stability. We conclude that the general dynamic state close to the destruction level within the investigation area is getting worse over the time; this is reflected in the crack's densities and positions, also on the changes in the lateral distribution of geoelectric heterogeneity as an indicator of the saturation of the surface rock in the study area with water [1]. 1. Magdy A. Atya, Olga A. Hachay, Mamdouh M. Soliman, Oleg Y. Khachay, Ahmed B. Khalill, Mahmoud Gaballah, Fathy F.Shaaban and Ibrahim A.El. Hemali. CSEM imaging of the near surface dynamics and its impact for foundation stability at quarter 27,15-th of May City, Helwan, Egypt. // Earth sciences research journal, 2010,Vol.14, N1, p.76-87.

  11. Enhancements of Tow-Steering Design Techniques: Design of Rectangular Panel Under Combined Loads

    NASA Technical Reports Server (NTRS)

    Tatting, Brian F.; Setoodeh, Shahriar; Gurdal, Zafer

    2005-01-01

    An extension to existing design tools that utilize tow-steering is presented which is used to investigate the use of elastic tailoring for a flat panel with a central hole under combined loads of compression and shear. The elastic tailoring is characterized by tow-steering within individual lamina as well as a novel approach based on selective reinforcement, which attempts to minimize compliance through the use of Cellular Automata design concepts. The selective reinforcement designs lack any consideration of manufacturing constraints, so a new tow-steered path definition was developed to translate the prototype selective reinforcement designs into manufacturable plies. The minimum weight design of a flat panel under combined loading was based on a model provided by NASA-Langley personnel and analyzed by STAGS within the OLGA design environment. Baseline designs using traditional straight fiber plies were generated, as well as tow-steered designs which incorporated parallel, tow-drop, and overlap plies within the laminate. These results indicated that the overlap method provided the best improvement with regards to weight and performance as compared to traditional constant stiffness monocoque panels, though the laminates did not measure up to similar designs from the literature using sandwich and isogrid constructions. Further design studies were conducted using various numbers of the selective reinforcement plies at the core and outer surface of the laminate. None of these configurations exhibited notable advantages with regard to weight or buckling performance. This was due to the fact that the minimization of the compliance tended to direct the major stresses toward the center of the panel, which decreased the ability of the structure to withstand loads leading to instability.

  12. Estimating the geotechnical Parameters from CSEM monitoring Data for the Buildings and the Environment at the City of 15th May, Egypt

    NASA Astrophysics Data System (ADS)

    Hachay, Olga; Atya, Magdy; Khachay, Oleg

    2015-04-01

    The site of investigation, 15th May city, is a new suburb of Helwan, at about 35 km south of Cairo, Egypt. The work is aimed to investigate the rock mass stability at "Quarter 27" in 15th May City, which is linked with cracks formation into the buildings. A controlled source electromagnetic (CSEM) approach developed earlier by IGF UB RAS (Geophysical Federal Institute, Ural Branch of Russian Academy of Science) is applied to image the ranked deformation levels in the massive structure. The wide profile system of observation has been used to monitor the three components of the alternating magnetic field along predefined measuring lines in the study area. Four cycles of observation have been carried out in 2008, 2010, 2011, and 2012. The acquired data sets have been subjected to analytical processing procedure to estimate the changes in the geotechnical parameters during the time of these four cycles of observation. The analytical treatments provided good information about the structure of the rock massive and its rank of degradation, the lateral distribution of the geotechnical heterogeneity, and finally a conclusive outcome about foundation stability. We conclude that the general dynamic state close to the destruction level within the investigation area is getting worse over the time; this is reflected in the crack's densities and positions, also on the changes in the lateral distribution of geoelectric heterogeneity as an indicator of the saturation of the surface rock in the study area with water [1]. Reference 1. Magdy A. Atya, Olga A. Hachay, Mamdouh M. Soliman, Oleg Y. Khachay, Ahmed B. Khalill, Mahmoud Gaballah, Fathy F.Shaaban and Ibrahim A.El. Hemali. CSEM imaging of the near surface dynamics and its impact for foundation stability at quarter 27,15-th of May City, Helwan, Egypt. // Earth sciences research journal, 2010,Vol.14, N1, p.76-87.

  13. Gastric cancer: Prevention, screening and early diagnosis

    PubMed Central

    Pasechnikov, Victor; Chukov, Sergej; Fedorov, Evgeny; Kikuste, Ilze; Leja, Marcis

    2014-01-01

    Gastric cancer continues to be an important healthcare problem from a global perspective. Most of the cases in the Western world are diagnosed at late stages when the treatment is largely ineffective. Helicobacter pylori (H. pylori) infection is a well-established carcinogen for gastric cancer. While lifestyle factors are important, the efficacy of interventions in their modification, as in the use of antioxidant supplements, is unconvincing. No organized screening programs can be found outside Asia (Japan and South Korea). Although several screening approaches have been proposed, including indirect atrophy detection by measuring pepsinogen in the circulation, none of them have so far been implemented, and more study data is required to justify any implementation. Mass eradication of H. pylori in high-risk areas tends to be cost-effective, but its adverse effects and resistance remain a concern. Searches for new screening biomarkers, including microRNA and cancer-autoantibody panels, as well as detection of volatile organic compounds in the breath, are in progress. Endoscopy with a proper biopsy follow-up remains the standard for early detection of cancer and related premalignant lesions. At the same time, new advanced high-resolution endoscopic technologies are showing promising results with respect to diagnosing mucosal lesions visually and targeting each biopsy. New histological risk stratifications (classifications), including OLGA and OLGIM, have recently been developed. This review addresses the current means for gastric cancer primary and secondary prevention, the available and emerging methods for screening, and new developments in endoscopic detection of early lesions of the stomach. PMID:25320521

  14. Influence of Terrestrial Weathering on the Magnetic Record of a LL Chondrite

    NASA Astrophysics Data System (ADS)

    Kohout, T.; Kletetschka, G.; Wasilewski, P.

    2001-12-01

    The origin of our solar system may have been accompanied by transient energetic events capable of magnetizing the materials from which the solid bodies in the solar system formed. The magnetic field associated with some of some of these events should have been recorded by the magnetic mineralogy contained within meteorites. To extract this information from meteorites many noise components must be carefully eliminated. The fusion crust has long been established as restricted to a thin layer on the surface of meteorite. Magnetic screening of the fusion crust that relates to Murchison meteorite indicates that during the entry and landing at least 6 mm thick layer is affected by terrestrial TRM acquisition. Many of the meteorite finds have long term residence in the terrestrial oxidized environment. This weathering is the subject of this study. The meteorite in question landed in the Libya stony desert and has obvious surface weathering that can be referred to as desert varnish. The consequent iron oxide mineralization introduced very stable origin of very stable chemical remanent magnetization. The magnetic remanence in fragments without the desert varnish is between 20 - 50 % of the oxidized ones. The orientation of this CRM appears to be random indicating that the sample may have rotated during the long period of aeolian transport and varnish formation. Magnetization of the white matrix samples (20 - 50 % of weathered ones) is thermally more stable and also randomly oriented. The range of NRM/SIRM values for both mineralogies varies between 10-2 and 10-3. Acknowledgements: This work would not be possible without help of following people: Jakub Haloda, Petr Jakes, Marcela Bukovanska, Petr Pruner, Vladimir Kohout, Libuse Kohoutova, Vladimir Kohout, Olga Kohoutova.

  15. Access and success with less: improving productivity in broad-access postsecondary institutions.

    PubMed

    Jenkins, Davis; Rodríguez, Olga

    2013-01-01

    Achieving national goals for increased college completion in a time of scarce resources will require the postsecondary institutions that enroll the majority of undergraduates--community colleges and less-selective public universities--to graduate more students at a lower cost. Davis Jenkins and Olga Rodriguez examine research on how these "broad-access" institutions can do so without sacrificing access or quality. Research indicates that the strategies broad-access institutions have relied on in the past to cut costs--using part-time instructors and increasing student-faculty ratios--may in fact reduce productivity and efficiency. The limited evidence available suggests that some of the most popular strategies for improving student success are not cost-effective. New strategies to cut costs and improve college success are therefore imperative. Some believe that redesigning courses to make use of instructional technologies will lead to better outcomes at lower cost, although the evidence is mixed. Recently, a growing number of institutions are going beyond redesigning courses and instead changing the way they organize programs and supports along the student's "pathway" through college. These efforts are promising, but their effects on cost per completion are not yet certain. Meager funding has so far hampered efforts by policy makers to fund colleges based on outcomes rather than how many students they enroll, but some states are beginning to increase the share of appropriations tied to outcomes. Jenkins and Rodriquez argue that as policy makers push colleges to lower the cost per graduate, they must avoid providing incentives to lower academic standards. They encourage policy makers to capitalize on recent research on the economic value of postsecondary education to measure quality, and urge colleges and universities to redouble efforts to define learning outcomes and measure student mastery. PMID:25522651

  16. Outreach and capacity building activities for engaging youth and public in Exploration

    NASA Astrophysics Data System (ADS)

    Foing, Bernard H.

    ., Ehrenfreund P., Astrobiology field research in Moon/Mars , IJA, 10,Special Issue 03 (2011) https://www.google.nl/?gfe_rd=cr&ei=D4MHU5CMB4ve8gfzl4DQCg#q=ilewg+euromoonmars http://www.aliciaframis.com/Moonlife_Concept.html http://www.artscatalyst.org/experiencelearning/detail/itaccus/

  17. Chemical composition of particulate matter in Spain: modelling evaluation of the CALIOPE system for 2004

    NASA Astrophysics Data System (ADS)

    Pay, María. Teresa; Piot, Matthias; Jorba, Oriol; Basart, Sara; Gassó, Santiago; Dabdub, Donald; Jiménez-Guerrero, Pedro; Querol, Xavier; Pandolfi, Marco; María Baldasano, José

    2010-05-01

    In the frame of the CALIOPE project, a high-resolution air quality forecasting system, WRF-ARW/HERMES/CMAQ/BSC-DREAM8b, has been developed and applied to the European domain (12km x 12km, 1hr) as well as to the Iberian Peninsula domain (4km x 4km, 1hr) to provide air quality forecasts for Spain (http://www.bsc.es/caliope/). The vertical resolution of the CMAQ chemistry-transport model for gas-phase and aerosols has been increased from 8 to 15 layers in order to simulate vertical exchanges more accurately. Gas phase boundary conditions are provided by the LMDz-INCA2 global climate-chemistry model. The BSC-DREAM8b model simulates long-range transport of mineral dust over the domains under study. The HERMES model system, using a bottom-up approach, was adopted to estimate emissions for the Iberian Peninsula simulation at 4km x 4km horizontal resolution, every hour. The present contribution describes a thorough quantitative evaluation study performed for a reference year (2004). Model simulations are compared with ground-based measurements from the EMEP and Spanish air quality networks. The speciation of PM10 and PM2.5 from 8 stations of the CSIC-IJA network is analyzed to evaluate the model chemical composition of particulate matter. Results show that model predictions for relevant gas phase species, such as ozone, are in very good agreement (less than 25% gross error) with observations. Concerning the chemical composition of particulate matter, PM2.5 nitrate and sulphate model predictions are better simulated than for other species; good agreement between model and observations is found throughout the year (correlations around 0.6). Results also show that carbonaceous aerosol concentrations are substantially under-predicted during the entire year, most likely due to a lack of some secondary organic aerosol formation pathways in the model. Good correlation for coarse Na+ is found due to its inertness. Concentrations of fine Na+ are slightly under-predicted due to

  18. Operational air quality forecasting system for Spain: CALIOPE

    NASA Astrophysics Data System (ADS)

    Baldasano, J. M.; Piot, M.; Jorba, O.; Goncalves, M.; Pay, M.; Pirez, C.; Lopez, E.; Gasso, S.; Martin, F.; García-Vivanco, M.; Palomino, I.; Querol, X.; Pandolfi, M.; Dieguez, J. J.; Padilla, L.

    2009-12-01

    The European Commission (EC) and the United States Environmental Protection Agency (US-EPA) have shown great concerns to understand the transport and dynamics of pollutants in the atmosphere. According to the European directives (1996/62/EC, 2002/3/EC, 2008/50/EC), air quality modeling, if accurately applied, is a useful tool to understand the dynamics of air pollutants, to analyze and forecast the air quality, and to develop programs reducing emissions and alert the population when health-related issues occur. The CALIOPE project, funded by the Spanish Ministry of the Environment, has the main objective to establish an air quality forecasting system for Spain. A partnership of four research institutions composes the CALIOPE project: the Barcelona Supercomputing Center (BSC), the center of investigation CIEMAT, the Earth Sciences Institute ‘Jaume Almera’ (IJA-CSIC) and the CEAM Foundation. CALIOPE will become the official Spanish air quality operational system. This contribution focuses on the recent developments and implementation of the integrated modelling system for the Iberian Peninsula (IP) and Canary Islands (CI) with a high spatial and temporal resolution (4x4 sq. km for IP and 2x2 sq. km for CI, 1 hour), namely WRF-ARW/HERMES04/CMAQ/BSC-DREAM. The HERMES04 emission model has been specifically developed as a high-resolution (1x1 sq. km, 1 hour) emission model for Spain. It includes biogenic and anthropogenic emissions such as on-road and paved-road resuspension production, power plant generation, ship and plane traffic, airports and ports activities, industrial and agricultural sectors as well as domestic and commercial emissions. The qualitative and quantitative evaluation of the model was performed for a reference year (2004) using data from ground-based measurement networks. The products of the CALIOPE system will provide 24h and 48h forecasts for O3, NO2, SO2, CO, PM10 and PM2.5 at surface level. An operational evaluation system has been developed

  19. Charging of the Electric Vehicles in Private Sector: Technical and Economic Aspects

    NASA Astrophysics Data System (ADS)

    Grackova, L.; Oleinikova, I.; Klavs, G.

    2014-12-01

    The economic aspect considered in the work is related to the charging of an electric vehicle (EV) at a single private house when this is done every day. To perform the relevant cost estimation it was necessary to determine: the average annual electricity consumption under the condition of everyday charging an EV and the average electricity consumption off the mains for covering a distance of 100 km by an EV and the time in hours for its charging. Comparison is made for the day-time intervals from which it is possible to choose the preferable for proper loading the electric line and the most beneficial for the consumer. Under analysis are two EV connection scenarios for 100 individual households from which 10%, 20% and 30% have EVs, with 8-h duration of each charging at the current of 13A. The authors consider the consumption and electric energy payment packages which - with planned opening of the electric energy market on January 1, 2015 - will offer the clients the enterprises rendering services on the electric energy sale. Šajā rakstā tiek analizēts vidējais diennakts elektroenerģijas patēriņš un diennakts slodzes grafiki privātmājās apstākļos, kad privātmājas īpašnieki lādē elektroautomobili katru dienu vidējam brauciena attālumam 100 km. Elektroautomobiļa uzlādes režīmi tiek analizēti, ņemot vērā patēriņa elektriskās slodzes grafika kvalitāti raksturojošos rādītājus un patērētāja ekonomiskos ieguvumus. Lai novērtētu ekonomiski stimulētu patērētāju elektroautomobiļa uzlādes laika izvēles ietekmi uz diennakts elektriskās slodzes aizpildījuma koeficientu, tika izveidoti un analizēti 2 scenāriji, kas apraksta 100 privātmāju ar dažādu elektroautomobiļu piederības īpatsvaru divas atšķirīgas automobiļu uzlādes gadījumus.

  20. Greenhouse Gas Emission Reduction Due to Improvement of Biodegradable Waste Management System

    NASA Astrophysics Data System (ADS)

    Bendere, R.; Teibe, I.; Arina, D.; Lapsa, J.

    2014-12-01

    ārdāmo atkritumu apsaimniekošanas statistikas datu novērtējums atbilstoši likumdošanas prasībām. Izmantojot matemātisko modelēšanas programmu WAMPS, analizēti trīs dažādi bioloģisko noārdāmo atkritumu apsaimniekošanas scenāriji, kuriem veikts vides ietekmes novērtējums, kas izteikts klimata pārmaiņu potenciālā - tonnas CO2 ekv. Darbā secināts, ka lielākais siltumnīcefektu (SEG) avots atkritumu apsaimniekošanas ir atkritumu poligoni (Bāzes scenārijs), ko galvenokārt ietekmē CH4 rašanās, organiskajiem atkritumiem sadaloties anaerobos apstākļos. Būtisku pozitīvo efektu SEG emisiju samazināšanā dod atkritumu pārstrāde otrreizējās izejvielās un sadedzināšana cementa ražotnē, kas ļauj samazināt dabīgo izejmateriālu un fosilo enerģijas resursu patēriņu. Attīstot pārtikas atkritumu pārstrādi biogāzē, lietderīgi veidot alternatīvās vai izmantot esošās sistēmas, kas nodrošina iegūtās enerģijas un digestāta patēriņu, t.i lauksaimniecība, transports vai komunālie pakalpojumi. Lai no zaļajiem dārza atkritumiem iegūtu augstvērtīgu kompostu, valstī jārada tam nepieciešami likumdošanas un ekonomiskie instrumenti, kas veicina komposta tirgus attīstību.

  1. [Ol'ha Petrivna Chepinoha--a founder of investigations of nucleic acids in biochemistry in Ukraine. To the 100th anniversary of birthday, 1.07.1907--27.04.1983].

    PubMed

    Vynohradova, R P

    2008-01-01

    Olga Petrivna Chepinoga, doctor of science (biology), senior scientific worker, was born on July 1, 1907, in Kyiv. She graduated from the 1st Kyiv Medical Institute (1927-1931). In 1931-1935 she worked at various medical institutions of Ukraine. In 1935 O. P. Chepinoga was employed by the Institute of Biochemistry of the National Academy of Sciences of the Ukr.SSR as a laborant, then as an assistant, junior and senior scientific worker. In 1940 O. P. Chepinoga defended a thesis for a Candidate's degree, and from 1941 she was given a rank of the senior scientific worker. During the Great Patriotic War she served in the armed forces of the Soviet Army (1941-1945) as a medical officer in the rank of captain. In 1944-1963 she worked at the Instutute of Biochemistry of the AS of the Ukr.SSR as a senior scientific worker, and in 1963-1965 headed the Laboratory of Nucleic Acids. In 1952 O. P. Chepinoga defended a thesis for Doctor's degree in biology On Biologic Role of Nucleic Acids. Investigations of O. P. Chepinoga were first devoted to oxidation processes in muscles in various physiologic conditions, physico-chemical properties of myosin and its ATPase activity. Since 1948 her scientific interests had been concentrating on studying the biologic role and metabolism of nucleic acids, their transformation in the organism in norm and in pathological states. She was the first to find that various proteins interacted with DNA molecule. The highest activity of DNAse and RNAse was revealed in the organs which permanently synthesize proteins (liver, spleen, pancreas). Under quantitative undifferentiated growth of malignant tumors (Brown-Pierse carcinoma and Crocker sarcoma) the great part belongs to the process of DNA disintegrations; DNAse activity increases considerably in the animal and human blood that is not observed at other somatic diseases and is of great diagnostic value. Considerable shifts in DNAse activity at various pathologies were not found. The enrichment of

  2. Results of the round table "Impact of natural and man-made hazards on urban areas"

    NASA Astrophysics Data System (ADS)

    Bostenaru-Dan, Maria; Olga Gociman, Cristina; Hostiuc, Constantin; Mihaila, Marina; Gheorghe (Popovici), Diana Alexandra; Anghelache, Mirela Adriana; Dutu, Andreea; Tascu-Stavre, Miroslav

    2015-04-01

    On Thursday the 6th of November a round table was organised at the Centre of Architectural and Urban Studies of the "Ion Mincu" University of Architecture and Urban Planning on the topic of this session. It included a review of the previous editions, and an outlook to the edition this year. We shared publications, and a publication is in work from the round table itself. The series of round tables at the Centre of Architectural and Urban Studies is an innitiative of Constantin Hostiuc, the secretary general of the centre. This round table was organised by Maria Bostenaru Dan, and moderated by Cristina Olga Gociman, who currently runs a project on a related topic. From the various ways to approach the effects of hazards, up to the disatrous ones, on urban areas, we consider the most suitable the approach to the impact. From the point of view of natural sciences and of the engineering ones this was approached a number of times, and newly social sciences are included as well. The role of planning and design for a better prevention, and even post-disaster intervention is ignored many times though. The goal of the round table was to bring together multidisciplinary approaches (architecture, urban planning, seismology, geography, structural engineering, ecology, communication sciences, art history) on a problem set from this point of view. Discussed topics were: 1. Assessment and mapping methods of the impact of natural hazards on urban areas (preventive, postdisaster) 2. Visualisation and communication techniques of the assessed impact, including GIS, internet, 3D 3. Strategies for the reduction of the impact of natural hazards on urban areas 4. Suitable methods of urban design for the mitigation of the effects of disasters in multihazard case 5. Partnership models among the involved actors in the decision process for disaster mitigaton 6. Urban planning instruments for risc management strategies (ex. master plan) 7. Lessons learned from the relationship between hazard

  3. Gas Phase Chromatography of some Group 4, 5, and 6 Halides

    SciTech Connect

    Sylwester, Eric Robert

    1998-10-01

    Gas phase chromatography using The Heavy Element Volatility Instrument (HEVI) and the On Line Gas Apparatus (OLGA III) was used to determine volatilities of ZrBr{sub 4}, HfBr{sub 4}, RfBr{sub 4}, NbBr{sub 5}, TaOBr{sub 3}, HaCl{sub 5}, WBr{sub 6}, FrBr, and BiBr{sub 3}. Short-lived isotopes of Zr, Hf, Rf, Nb, Ta, Ha, W, and Bi were produced via compound nucleus reactions at the 88-Inch Cyclotron at Lawrence Berkeley National Laboratory and transported to the experimental apparatus using a He gas transport system. The isotopes were halogenated, separated from the other reaction products, and their volatilities determined by isothermal gas phase chromatography. Adsorption Enthalpy ({Delta}H{sub a}) values for these compounds were calculated using a Monte Carlo simulation program modeling the gas phase chromatography column. All bromides showed lower volatility than molecules of similar molecular structures formed as chlorides, but followed similar trends by central element. Tantalum was observed to form the oxybromide, analogous to the formation of the oxychloride under the same conditions. For the group 4 elements, the following order in volatility and {Delta}H{sub a} was observed: RfBr{sub 4} > ZrBr{sub 4} > HfBr{sub 4}. The {Delta}H{sub a} values determined for the group 4, 5, and 6 halides are in general agreement with other experimental data and theoretical predictions. Preliminary experiments were performed on Me-bromides. A new measurement of the half-life of {sup 261}Rf was performed. {sup 261}Rf was produced via the {sup 248}Cm({sup 18}O, 5n) reaction and observed with a half-life of 74{sub -6}{sup +7} seconds, in excellent agreement with the previous measurement of 78{sub -6}{sup +11} seconds. We recommend a new half-life of 75{+-}7 seconds for {sup 261}Rf based on these two measurements. Preliminary studies in transforming HEVI from an isothermal (constant temperature) gas phase chromatography instrument to a thermochromatographic (variable temperature

  4. Unlocking the secrets of the universe, Rosetta lander named Philae

    NASA Astrophysics Data System (ADS)

    2004-02-01

    Philae is the island in the river Nile on which an obelisk was found that had a bilingual inscription including the names of Cleopatra and Ptolemy in Egyptian hieroglyphs. This provided the French historian Jean-François Champollion with the final clues that enabled him to decipher the hieroglyphs of the Rosetta Stone and unlock the secrets of the civilisation of ancient Egypt. Just as the Philae Obelisk and the Rosetta Stone provided the keys to an ancient civilisation, the Philae lander and the Rosetta orbiter aim to unlock the mysteries of the oldest building blocks of our Solar System - comets. Germany, France, Italy and Hungary are the main contributors to the lander, working together with Austria, Finland, Ireland and the UK. The main contributors held national competitions to select the most appropriate name. Philae was proposed by 15-year-old Serena Olga Vismara from Arluno near Milan, Italy. Her hobbies are reading and surfing the internet, where she got the idea of naming the lander Philae. Her prize will be a visit to Kourou to attend the Rosetta launch. Study of Comet Churyumov-Gerasimenko will allow scientists to look back 4600 million years to an epoch when no planets existed and only a vast swarm of asteroids and comets surrounded the Sun. On arrival at the comet in 2014, Philae will be commanded to self-eject from the orbiter and unfold its three legs, ready for a gentle touchdown. Immediately after touchdown, a harpoon will be fired to anchor Philae to the ground and prevent it escaping from the comet's extremely weak gravity. The legs can rotate, lift or tilt to return Philae to an upright position. Philae will determine the physical properties of the comet's surface and subsurface and their chemical, mineralogical and isotopic composition. This will complement the orbiter's studies of the overall characterisation of the comet's dynamic properties and surface morphology. Philae may provide the final clues enabling the Rosetta mission to unlock

  5. [Ol'ha Petrivna Chepinoha--a founder of investigations of nucleic acids in biochemistry in Ukraine. To the 100th anniversary of birthday, 1.07.1907--27.04.1983].

    PubMed

    Vynohradova, R P

    2008-01-01

    Olga Petrivna Chepinoga, doctor of science (biology), senior scientific worker, was born on July 1, 1907, in Kyiv. She graduated from the 1st Kyiv Medical Institute (1927-1931). In 1931-1935 she worked at various medical institutions of Ukraine. In 1935 O. P. Chepinoga was employed by the Institute of Biochemistry of the National Academy of Sciences of the Ukr.SSR as a laborant, then as an assistant, junior and senior scientific worker. In 1940 O. P. Chepinoga defended a thesis for a Candidate's degree, and from 1941 she was given a rank of the senior scientific worker. During the Great Patriotic War she served in the armed forces of the Soviet Army (1941-1945) as a medical officer in the rank of captain. In 1944-1963 she worked at the Instutute of Biochemistry of the AS of the Ukr.SSR as a senior scientific worker, and in 1963-1965 headed the Laboratory of Nucleic Acids. In 1952 O. P. Chepinoga defended a thesis for Doctor's degree in biology On Biologic Role of Nucleic Acids. Investigations of O. P. Chepinoga were first devoted to oxidation processes in muscles in various physiologic conditions, physico-chemical properties of myosin and its ATPase activity. Since 1948 her scientific interests had been concentrating on studying the biologic role and metabolism of nucleic acids, their transformation in the organism in norm and in pathological states. She was the first to find that various proteins interacted with DNA molecule. The highest activity of DNAse and RNAse was revealed in the organs which permanently synthesize proteins (liver, spleen, pancreas). Under quantitative undifferentiated growth of malignant tumors (Brown-Pierse carcinoma and Crocker sarcoma) the great part belongs to the process of DNA disintegrations; DNAse activity increases considerably in the animal and human blood that is not observed at other somatic diseases and is of great diagnostic value. Considerable shifts in DNAse activity at various pathologies were not found. The enrichment of

  6. Development of Extended Content Standards for Biodiversity Data

    NASA Astrophysics Data System (ADS)

    Hugo, Wim; Schmidt, Jochen; Saarenmaa, Hannu

    2013-04-01

    , SOS, NetCDF), with a use-case dependent 'payload' embedded into the data stream. This enables the re-use of the abstract schema, and sometimes the implementation specification (for example XML, JSON, or NetCDF conventions) across services. An explicit aim will be to make the XML implementation specification re-usable as a DwC and a GML (SOS end WFS) extension. (1) Olga Lyashevska, Keith D. Farnsworth, How many dimensions of biodiversity do we need?, Ecological Indicators, Volume 18, July 2012, Pages 485-492, ISSN 1470-160X, 10.1016/j.ecolind.2011.12.016. (2) GEO BON: Workshop on Essential Biodiversity Variables (27-29 February 2012, Frascati, Italy). (http://www.earthobservations.org/geobon_docs_20120227.shtml)

  7. [It is a long way from Slagelse to Sebastopol].

    PubMed

    Braun, E

    1999-01-01

    Frederik Lov, Olga Kulago, participated in the defense of Sebastopol in 1942 and was evacuated to Caucasus. After the war she studied medicine and graduated in 1950. She worked as an obstetrician until her retirement in 1977. PMID:11639157

  8. Sequence variability of Rhizobiales orthologs and relationship with physico-chemical characteristics of proteins

    PubMed Central

    2011-01-01

    , volume and electrostatic charge. Conclusions These findings revealed that even when orthologs perform the same function in each genomic background, their sequences reveal important evolutionary tendencies and differences related to adaptation. This article was reviewed by: Dr. Purificación López-García, Prof. Jeffrey Townsend (nominated by Dr. J. Peter Gogarten), and Ms. Olga Kamneva. PMID:21970442

  9. Preface

    NASA Astrophysics Data System (ADS)

    Mashonkina, Lyudmila I.

    2013-05-01

    The JENAM symposium "Physics of Stars" took place on the 5th and 6th July of 2011 in Saint-Petersburg. This symposium had a wide-ranging look at observational and theoretical studies of stars and stellar systems. Several talks were devoted to accurate determination of fundamental stellar parameters, such as star's mass, radius, effective temperature, surface gravity, chemical composition. This is particularly crucial to fully exploit the data from the new generation of large ground-based telescopes and future space missions like the GAIA one. Viktor Orlov reported the measurements of stellar mass for a few multiple systems and also the investigation of their dynamical stability. To improve the determination of parameters of the components in an eclipsing binary system including a Wolf-Rayet star, Eleonora Antokhina and her co-workers updated their synthesis model by accounting for the absorption in the expanding stellar wind. The variable stars are excellent laboratories to study the physical processes either occurring at certain stages of stellar evolution or caused by the interaction of a star with its companion or circumstellar medium. Nikolay Samus reported the discovery of hundreds of new variable stars in their work on digitalization of the Moscow stacks of sky photographs. The exotic star VSX J052807.9+725606, with a very strong asymmetry of maxima, wavelength dependence of amplitude, and the shift of the secondary minimum from the phase 0.5, was discovered by Natalia Virnina. Michael E. Contadakis and his co-workers presented the additional observational evidences for weak transient optical oscillations of the red dwarf AD Leo. Spectral variability of the two massive luminous stars in the M33 galaxy was studied by Olga Maryeva. Alex Dudorov and Sergei Zamozdra and Alexander Grigoriev et al. discussed the theoretical and observational problems of star formation. Galina Dremova presented the numerical algorithm for computing the tidal torque constants for a

  10. Experience in applying acoustopolarization method for rock samples from the Kola (SG-3), German (KTB) and Finnish (OKU) investigation boreholes

    NASA Astrophysics Data System (ADS)

    Gorbatsevich, Felix F.

    2013-04-01

    , Poligraf Publ., pp. 131-134. 2. Emmermann R. and Lauterjing J. The German Continental Deep Drilling Program KTB: Overview and major results // Journ. of Geoph. Res.-V.102. No. B8. - P18, 179-18,201. 3. Felix F. Gorbatsevich, Mikhail V. Kovalevsky, Olga M. Trishina. Characteristics of elastic properties of the crystalline rock samples from the Outokumpu deep drill hole: results of acoustopolariscopic laboratory measurements // Special Volume. Geological Survey of Finland. Special Paper 51, 2011. P. 207-218.

  11. [USE OF COMPLEMENTARY AND ALTERNATIVE MEDICINE AMONG FAMILY MEDICINE PATIENTS--EXAMPLE OF THE TOWN OF ČAKOVEC].

    PubMed

    Vitale, Ksenija; Munđar, Roko; Sović, Slavica; Bergman-Marković, Biserka; Janev Holcer, Nataša

    2014-12-01

    The use of complementary and alternative medicine (CAM) is widespread around the world including Croatia. The number of studies that investigate both quantitative and qualitative use of CAM in Croatia is limited. The aim of this study was to investigate the use of CAM among family medicine patients in the town of Čakovec and the rate they report it to their family doctor. This was a cross-sectional study in a sample of 300 patients that visited primary health center for any reason. We used anonymous questionnaire already employed in a previous investigation (Čižmešija et al. 2008), which describes socioeconomic characteristics, modalities of CAM use, and reasons for use. We also added questions on the type of herbs used and use of over-the-counter vitamin and mineral supplements. On data analysis we used descriptive statistics, χ2-test and Fisher's exact test, while the level of statistical significance was set at p ≤ 0.05. The response rate was 76%. Out of the total number of patients, 82% used some modality of CAM. Women, patients with secondary school education, employed and retired persons used CAM more often. Students and pupils reported least use of CAM. The most commonly used were herbs (87%), bioenergy (29%), diet therapy (28%), chiropractics (22%), and homeopathy and acupuncture (11% each). Vitamin and mineral supplements were used by 77% of study subjects. CAM was most frequently used for respiratory, urinary and musculoskeletal problems, as well as to improve overall health condition. Of the respondents that reported CAM use, 55% believed it would help them, 43% used it because they wanted to try something new, while only 2% indicated dissatisfaction with their physician as the reason for using CAM. Statistically, there were more subjects that used CAM and did not notify their family doctor about it, which could indicate poor communication between family doctors and health care users. Our results are consistent with a previous quantitative study

  12. Systems astrobiology for a reliable biomarker on exo-worlds

    NASA Astrophysics Data System (ADS)

    Chela Flores, Julian

    2013-04-01

    moons of our solar system (Chela-Flores, 2010), and will learn in the foreseeable future with the JUICE Mission will be relevant to systems astrobiology. The distribution of systems of habitable worlds with their biomarkers will be testable in the short term with forthcoming space missions: FINNESSE, EChO and TESS. This would justify subsequent use of quantitative systems biology methods that are available from its repertoire of analytic approaches. References Catling et al. (2005). Why O2 is required by complex life on habitable planets and the concept of planetary "oxygenation time", Astrobiology, 5, 415-438. Chela-Flores, J. (2010). Instrumentation for the search of habitable ecosystems in the future exploration of Europa and Ganymede. International Journal of Astrobiology, 9, 101-108. http://www.ictp.it/~chelaf/jcf_IJA_2010.pdf Chela-Flores, J. (2013). From systems chemistry to systems astrobiology: Life in the universe as an emergent phenomenon. Published online: 26 July 2012. International Journal of Astrobiology, 12,8-16. http://www.ictp.it/~chelaf/Int_J_AB_SAB_3.pdf Kiang, N.Y., et al (2007). Spectral signatures of photosynthesis II. Astrobiology 7, 252-274. Kipping, D. M. et al (2012). The Hunt for Exomoons with Kepler. arXiv:1201.0752 [astro-ph.EP]. Wolstencroft, R.D. and Raven, J.A. (2002). Photosynthesis: likelihood of occurrence and possibility of detection on earth-like planets. Icarus 157, 535-548.

  13. Undercar Electrical Generator for Railway Passenger Cars: Improvement of Efficiency / Dzelzceļa Pasažieru Zemvagona Elektriskā Ģeneratora Efektivitātes Uzlabošana

    NASA Astrophysics Data System (ADS)

    Levin, N.; Kamolins, E.; Gusakov, A.; Pugachev, V.

    2013-04-01

    Passenger cars of the railway transport are being constantly improved, thus becoming ever more comfortable for public conveyance. These cars are fitted with air conditioners, installations for heating and forced ventilation, heaters, refrigerators; lighting, radio and TV sets; communication equipment, etc. All the listed fittings need continuous and secure electricity supply from a primary independent source. The paper considers the possibilities of meeting requirements for particular power supply systems - first of all for undercar generators. At operation of such a high-power generator under rugged conditions it should be highly reliable, possessing a reasonable mass and high efficiency. The existing designs of these generators still do not meet the listed requirements in full measure. To improve the efficiency of the undercar generator it is proposed to integrate its excitation winding into the armature one, thus reducing the copper consumption, losses and mass, while - which is the most important - considerably raising reliability of the generator and its availability factor. Dzelzceļa transporta pasažieru vilcienu vagoni nepārtraukti tiek pilnveidoti ar mērķi paaugstināt pasažieru komforta līmeni pārvadājumu laikā. Šādi pasažieru vagoni aprīkoti ar gaisa kondicionēšanas, apsildes, ventilācijas, ūdens uzsildīšanas, saldēšanas, apgaismes, radio, televīzijas, sakaru u.c. iekārtām. Visām pieminētajām iekārtām to darbības laikā ir nepieciešama nepārtraukta un droša elektroenerģijas apgāde no primāra neatkarīga avota. Darbā tiek izskatīta elektroapgādes sistēma, kura spētu nodrošināt izvirzītās prasības. Pie šīs sistēmas, pirmkārt, pieder zemvagona ģenerators. Tam ir jābūt paaugstinātas jaudas, smagos darba apstākļos jānodrošina augsts drošums, ar pieņemamu masu un augstu lietderības koeficientu. Šādu ģeneratoru esošās konstrukcijas pilnā mērā nespēj nodrošināt iepriekš minētās pras

  14. Effect of Microwave Pre-Processing of Pelletized Biomass on its Gasification and Combustion / Mikroviļnu Priekšapstrādes Ietekme Uz Granulētas Biomasas Gazifikācijas Un Degšanas Procesiem

    NASA Astrophysics Data System (ADS)

    Barmina, I.; Līckrastiņa, A.; Valdmanis, J.; Valdmanis, R.; Zaķe, M.; Arshanitsa, A.; Telysheva, G.; Solodovnik, V.

    2013-08-01

    tījumu rezultātā konstatēts, ka mikroviļņu priekšapstrāde nodrošina intensīvāku biomasas gazifikāciju, ātrāku gaistošo savienojumu veidošanos, uzliesmošanu un pilnīgāku sadedzināšanu ar sekojošu saražotās īpatnējā siltuma enerģijas pieaugumu

  15. Evaluation of the chemically speciated particulate matter from a high-resolution air quality modeling system over the Iberian Peninsula

    NASA Astrophysics Data System (ADS)

    Pay, M. T.; Piot, M.; Jimenez-Guerrero, P.; Jorba, O.; Perez, C.; Baldasano, J. M.

    2009-04-01

    data on particle chemical composition, measurements of PM10 and PM2.5 chemical composition have been made available through the CSIC-IJA for this study. The provided data is spatially and temporally well distributed over eight stations in the Iberian Peninsula and for the whole year 2004, respectively. The model outputs were compared with the daily averages of each aerosol compounds. Statistics and graphics methods are used to describe model skills and weaknesses. The results of this work demonstrate that evaluation of PM from WRF-ARW/HERMES/CMAQ/DREAM with chemically speciated particulate matter measurements over an entire year (2004) is needed in order to identify which aerosol compounds are not well characterized in the model. PM2.5 sulphate model performance is better than for other species; a large consistency between model and observations was found throughout the year, possibly because sulphate formation chemistry is well understood and the emissions of sulphate precursors are well characterized in HERMES emission model. Carbonaceous aerosol concentration is substantially underpredicted during the entire 2004, most likely due, in part, to a lack of some secondary organic aerosol formation pathways in the model. According to marine aerosol, underestimation of fine Na+ concentration was found, possible due to missed sources of Na+ besides sea salt (mineral dust, surf zone emissions is not included). Fine Cl- concentration is also underestimated because heterogeneous reactions are not taken into account and transfer from PM10 to PM2.5 is not considered. Good correlation for coarse Na+ is found due to its inertness. This kind of information is essential to establish improvement strategies for the prediction of the particulate matter mass over the Iberian Peninsula and to achieve the standards set in European Directives for modelling applications.

  16. Identity of Innovative Multifunctional Material Manufacturing Business in Latvia / Inovatīvu Daudzfunkcionālo Materiālu Ražotāju Identitāte Latvijā

    NASA Astrophysics Data System (ADS)

    Geipele, I.; Staube, T.; Ciemleja, G.; Zeltins, N.; Ekmanis, Yu.

    2015-08-01

    The publication comprises the results from the practical scientific investigation to define the profile and distinctions of the Latvian innovative multifunctional material manufacturing industry. The research is carried out by a holistic approach, including expert interviews, qualitative analysis of the official register data, practical survey, and financial data analysis. The paper seeks to give the detailed data on a technological profile of the mentioned representative companies, if there is a synergy or tough competition in the Latvian market. The current research is topical, because it is unique and does not have analogues in Latvia, and the research is timely due to correspondence with recently stated Research and Innovation Strategies for Smart Specialisation in Latvia. The main findings are associated with recognition of the factors that make impact on commercialisation of the finished goods, obtained financial results and planned directions of development of the respondent companies. Publikācija sniedz veiktā zinātniski praktiskā pētījuma rezultātus, kura ietvaros tika noteikts Latvijas inovatīvu daudzfunkcionālo materiālu ražotāju darbības profils un identitāte. Pētījumā tika izmantota kompleksās analīzes metode, kas ietvēra ekspertu intervijas, uzņēmumu oficiāli reģistrēto datu kvalitatīvo analīzi, zinātniski praktisko aptauju, kā arī pētāmo uzņēmumu finanšu darbības rezultātu analīzi. Zinātniskais darbs sniedz izsmeļošu informāciju par mērķa uzņēmumu tehnoloģisko profilu un pēta, vai Latvijas mērķa ražošanas nozarē ir sinerģijas vai sīvās konkurences pazīmes. Šim zinātniskajam pētījumam ir noteikta aktualitāte saskaņā ar tā unikalitāti Latvijas valsts mērogā un atbilstība Viedās specializācijas stratēģijai. Pētījuma galvenie secinājumi ir saistīti ar uzņēmumu produkcijas komercializācijas ietekmējošo faktoru apzināšanu, sasniegtajiem finansiālajiem rezultātiem un pl

  17. Developed Design for Humeral Head Replacement Using 3D Surface Mapping

    NASA Astrophysics Data System (ADS)

    Salah, H. R.

    2014-12-01

    Works. Biomehaniskajam PKGN dizainam tika atlasīti piemēroti materiāli. Apspriesta dažādu biomateriālu ar metālisko pamatu reakcija uz mainīgām slodzēm. Tiek piedāvāta pleca kaula galviņas - kā anatomiskas, tā mākslīgas - trīs dimensijas mērīšanas metodoloģijas. Dota datortomogrāfisko precīzo mērījumu rezultātu detalizēta interpretācija.

  18. Latvian Waste Management Modelling in View of Environmental Impact Reduction / Latvijas Atkritumu SAIMNIECĪBAS ATTĪSTĪBA un TĀS RADĪTĀS Ietekmes UZ Vidi SAMAZINĀŠANAS MODELĒŠANA

    NASA Astrophysics Data System (ADS)

    Teibe, I.; Bendere, R.; Arina, D.

    2013-12-01

    In the work, the life-cycle assessment approach is applied to the planning of waste management development in a seaside region (Piejūra) using the Waste Management Planning System (WAMPS) program. In Latvia, the measures to be taken for the climate change mitigation are of utmost importance - especially as related to the WM performance, since a disposal of biodegradable waste presents the primary source of GHG emissions. To reduce the amount of such waste is therefore one of the most significant goals in the State WM plan for 2013-2020, whose adoption is the greatest challenge for municipalities. The authors analyse seven models which involve widely employed biomass processing methods, are based on experimental data and intended for minimising the direct disposal of organic mass at the solid waste landfills. The numerical results obtained evidence that the thermal or biotechnological treatment of organic waste substantially reduces the negative environmental impact of WM practices - by up to 6% as compared with the currently existing. Klimata pārmaiņu samazināšanas pasākumi Latvijā atkritumu saimniecības sektorā ir īpaši svarīgi. jo bioloģiski sadalāmo atkritumu apglabāšana ir viens no būtiskākajiem SEG emisiju avotiem valstī. Pētījumā modelēti virkne sadzīves atkritumu apsaimniekošanas modeļi. kas ietver plašāk izmantotās biomasas pārstrādes metodes un samazina tiešu organiskās masas apglabāšanu cieto sadzīves atkritumu poligonos. Atkritumu apsaimniekošanas modeļu radītās vides ietekmes novērtēšanai izmantota WAMPS (Waste Management Planning System) programma, kas balstīta uz atkritumu apsaimniekošanas procesu dzīves cikla novērtējumu vienā no desmit Latvijas atkritumu apsaimniekošanas reģioniem - Piejūra. Iegūtie kvantitatīvie rezultāti norāda. ka organiskās atkritumu masas pārstrāde un stabilizēšana, izmantojot biotehnoloģijas vai termisko pārstrādi, būtiski samazina atkritumu apsaimniekošanas rad

  19. Fused Deposition Modelling as Rapid Prototyping for Structural Material Improvement: Analytical Solution / Ātrās Prototipēšanas Ar Kausēšanas Metodi Strukturālā Uzlabojuma Analītisks Risinājums

    NASA Astrophysics Data System (ADS)

    Brensons, I.; Polukoshko, S.

    2013-10-01

    Fused deposition modelling (FDM) is one of the most effective rapid prototyping (RP) techniques due to its low cost, available materials and versatility. In FDM, a part of material (usually plastic) is made by heating this material to the molten state, and from the melt it is extruded through a nozzle and deposited on a surface. In the article, an alternative RP method is considered for improvement of the mechanical properties of a rapid prototype. The authors propose an analytical solution which allows for achievement of this purpose via advanced technologies. The base materials applied in RP technology can be combined with liquid resin which solidifies after a definite time. This makes it possible to create a channel through the prototype and fill it with another material having better mechanical properties. The optimal channel sizes can be chosen in order to raise the strength of material parts. Darbā tiek apskatīts ātrās prototipēšanas veids, kura pamatā ir detaļas veidošana, izmantojot kausētu materiālu parasti plastmasu. Šī detaļu veidošanas metode ir kļuvusi par vienu no visizplatītākajām tās zemo izmaksu, pieejamo materiālu un daudzpusības dēļ. Šī raksta mērķis ir izpētīt alternatīvu veidu, kā uzlabot prototipu mehāniskās īpašības, tādējādi palielinot printētu detaļu izmantošanu kā gala produktu. Raksts piedāvā analītisku risinājumu, kā uzlabot ātro prototipu mehāniskās īpašības, uzlabojot tehnoloģiskos procesus, kas iesaistīti detaļu izgatavošanā. Darba pamatā tiek izmantota 3D printēšanas tehnoloģijas iespēja veidot iekšējus kanālus bez ģeometriskiem ierobežojumiem, kā rezultātā ir iespējams izveidot iekšēju kanālu shēmu, ko pēc tam piepilda ar citu materiālu, kam ir labākas mehāniskās īpašības kā pamata materiālam. Pildīšanai izmantotais materiāls ir epoksīda sveķi, kas pieļauj vieglu iepildīšanu šķidrā fāzē, un sniedz labas mehāniskās īpašības p

  20. Verochka Zingan or recollections from the Physics Department of the Moscow University

    NASA Astrophysics Data System (ADS)

    Gaina, Alex; Gaina, Danielle A.

    . Laufer, Yu. El'nitskii, Gh. Nemtoi, Yu. Oprunenko, N.N. Semenov, Varun Sahni, A.A. Starobinskii, Liusea Burca, Serge Rollet, Tatyana Davydova, Zinaida Uglichina (Khafizova), T.Filippova, V.S. Filippov, Vera Zingan (Stefanovici), B.A. Gaina, E.F. Gaina, Valeri Gaina, A. Kirnitskii, M. Kavalerchik, Margarita Kavalerchik, Mark Rainis, L.I. Sedov, D. Mangeron, S. Taltu (Coanda), Z. Sali(Chitoroaga, Kitoroage), Raisa M. Gorbachova, Maria Bulgaru, S. Pavlichenko, Nadezhda Shishkan, A.N. Matveev, N.Ya. Tyapunina, D.F. Kiselev, V.A. Petukhov, N.Ch. Krutitskaya, G.N. Medvedev, A.A. Shishkin,I.A. Shishmarev,A.G. Sveshnikov, A.B. Vasil'eva, A.G. Yagola, I.I. Ol'hovskii, V.V. Kravtsov, V.V.Petkevich, V.I. Grigor'ev, V.S. Rostovskii, V.V. Balashov, B.I. Spasskii, V.D. Krivchenkov, M.B. Menskii, V.Ya. Fainberg, V.G. Kadyshevskii, B.K. Kerimov, V.A. Matveev, I.A. Kvasnikov, D.V. Gal'tsov, V.R. Khalilov, G.A. Chizhov,I.A. Obukhov, V.N. Melnikov, A.A. Logunov, A.N. Tavkhelidze,Yu.S. Vladimirov, N.F. Florea (Floria), B.A. Lysov, V.D. Kukin, 601-academic group (1977), A.R. Khokhlov, P.L. Kapitza, S.P. Kapitza, Ion C. Inculet, Ion I. Inculet,W. Bittner, Nikolay Florea (Floria), M.M. Heraskov, N.V. Sklifosovskii, N.N. Bantysh-Kamenskii, N.D. Zelinskii, Olga Crusevan (Krushevan), Eugenia Crusevan (Krushevan),L.S. Berg, I. Buzdugan (Buzdyga),S.G. Lazo, M.K. Grebenchya (Grebencea), V.T. Kondurar (Conduraru), E.A. Grebenikov, K.F. Teodorchik, V.A. Albitzky, M.V. Nazarov, Tatiana Nazarova, V. P. Oleinikov, O.V. Bolshakov, D.M. Nikolaev, V. Afanas'ev, Olga Tatarinskaya, Yu.V. Karaganchou, B.A. Volkov, V.K. Turta, S. Varzar, C. Sochichiu, V.B. Braginsky, V.S. Fursov, L.I. Brezhnev, V.I. Sobolev (INP MSU), V.A. Smirnov (INP MSU), L.D. Landau, M.A. Leontovich, A.G. Loskutova, Yu.M. Loskutov, N.S. Akulov, V.B. Gostev, A.R. Frenkin, N.N. Kolesnikov, A. Vasil'ev, V.N. Tsytovich, Ya.A. Frenkel, N.V. Mitskievich, E.A. Grebenikov, A.N. Prokopenya, A. Einstein, L.I. Sedov, A.N. Kolmogorov, V.I. Arnold, G

  1. Verochka Zingan or recollections from the Physics Department of the Moscow University

    NASA Astrophysics Data System (ADS)

    Gaina, Alex; Gaina, Danielle A.

    . Laufer, Yu. El'nitskii, Gh. Nemtoi, Yu. Oprunenko, N.N. Semenov, Varun Sahni, A.A. Starobinskii, Liusea Burca, Serge Rollet, Tatyana Davydova, Zinaida Uglichina (Khafizova), T.Filippova, V.S. Filippov, Vera Zingan (Stefanovici), B.A. Gaina, E.F. Gaina, Valeri Gaina, A. Kirnitskii, M. Kavalerchik, Margarita Kavalerchik, Mark Rainis, L.I. Sedov, D. Mangeron, S. Taltu (Coanda), Z. Sali(Chitoroaga, Kitoroage), Raisa M. Gorbachova, Maria Bulgaru, S. Pavlichenko, Nadezhda Shishkan, A.N. Matveev, N.Ya. Tyapunina, D.F. Kiselev, V.A. Petukhov, N.Ch. Krutitskaya, G.N. Medvedev, A.A. Shishkin,I.A. Shishmarev,A.G. Sveshnikov, A.B. Vasil'eva, A.G. Yagola, I.I. Ol'hovskii, V.V. Kravtsov, V.V.Petkevich, V.I. Grigor'ev, V.S. Rostovskii, V.V. Balashov, B.I. Spasskii, V.D. Krivchenkov, M.B. Menskii, V.Ya. Fainberg, V.G. Kadyshevskii, B.K. Kerimov, V.A. Matveev, I.A. Kvasnikov, D.V. Gal'tsov, V.R. Khalilov, G.A. Chizhov,I.A. Obukhov, V.N. Melnikov, A.A. Logunov, A.N. Tavkhelidze,Yu.S. Vladimirov, N.F. Florea (Floria), B.A. Lysov, V.D. Kukin, 601-academic group (1977), A.R. Khokhlov, P.L. Kapitza, S.P. Kapitza, Ion C. Inculet, Ion I. Inculet,W. Bittner, Nikolay Florea (Floria), M.M. Heraskov, N.V. Sklifosovskii, N.N. Bantysh-Kamenskii, N.D. Zelinskii, Olga Crusevan (Krushevan), Eugenia Crusevan (Krushevan),L.S. Berg, I. Buzdugan (Buzdyga),S.G. Lazo, M.K. Grebenchya (Grebencea), V.T. Kondurar (Conduraru), E.A. Grebenikov, K.F. Teodorchik, V.A. Albitzky, M.V. Nazarov, Tatiana Nazarova, V. P. Oleinikov, O.V. Bolshakov, D.M. Nikolaev, V. Afanas'ev, Olga Tatarinskaya, Yu.V. Karaganchou, B.A. Volkov, V.K. Turta, S. Varzar, C. Sochichiu, V.B. Braginsky, V.S. Fursov, L.I. Brezhnev, V.I. Sobolev (INP MSU), V.A. Smirnov (INP MSU), L.D. Landau, M.A. Leontovich, A.G. Loskutova, Yu.M. Loskutov, N.S. Akulov, V.B. Gostev, A.R. Frenkin, N.N. Kolesnikov, A. Vasil'ev, V.N. Tsytovich, Ya.A. Frenkel, N.V. Mitskievich, E.A. Grebenikov, A.N. Prokopenya, A. Einstein, L.I. Sedov, A.N. Kolmogorov, V.I. Arnold, G

  2. Key mechanisms of metabolic changes in mountain pine and larch under drought in the Swiss National Park

    NASA Astrophysics Data System (ADS)

    Churakova, Olga; Bigler, Christof; Bryukhanova, Marina; Siegwolf, Rolf

    2014-05-01

    intrinsic water use efficiency. Carbon isotopes ratios of specific sugar compounds such as sucrose, raffinose, fructose, ribose and pinitol in needle and wood samples will help to evaluate the impact of drought on the carbohydrate balance and carbon allocation. Analyzing the oxygen isotopic compositions of soil water, sap water (water in branches) and precipitation we will determine the role of the different water sources for tree growth under drought conditions. The proposed work will provide a unique opportunity to assess the survival potential of mountain pine and larch trees exposed to drought that will help to estimate risks of modern climatic changes and forest damage. This project was supported by Marie Heim-Vögtlin Programme PMPDP2_145507/1 granted to Olga Churakova (Sidorova). References: Allen CD et al. (2010) A global overview of drought and heat-induced tree mortality reveals emerging climate change risks for forests Forest Ecology and Management 259:660-684 Bigler C, Rigling A (2013) Precision and accuracy of tree-ring-based death dates of mountain pines in the Swiss National Park. Trees - Structure and Function. 27: 1703-1712 CH 2011 Swiss Climate Change Scenarios CH2011. In. C2SM, MeteoSwiss, ETH, NCCR Climate, and OcCC, p 88

  3. Decay properties of {sup 265}Sg(Z=106) and {sup 266}Sg(Z=106)

    SciTech Connect

    Tuerler, A.; Dressler, R.; Eichler, B.; Gaeggeler, H.W.; Jost, D.T. |; Schaedel, M.; Bruechle, W.; Gregorich, K.E.; Trautmann, N.; Taut, S.

    1998-04-01

    The presently known most neutron-rich isotopes of element 106 (seaborgium, Sg), {sup 265}Sg and {sup 266}Sg, were produced in the fusion reaction {sup 22}Ne+{sup 248}Cm at beam energies of 121 and 123 MeV. Using the On-Line Gas chemistry Apparatus OLGA, a continuous separation of Sg was achieved within a few seconds. Final products were assayed by {alpha}-particle and spontaneous fission (SF) spectrometry. {sup 265}Sg and {sup 266}Sg were identified by observing time correlated {alpha}-{alpha}-({alpha}) and {alpha}-SF decay chains. A total of 13 correlated decay chains of {sup 265}Sg (with an estimated number of 2.8 random correlations) and 3 decay chains of {sup 266}Sg (0.6 random correlations) were identified. Deduced decay properties were T{sub 1/2}=7.4{sub {minus}2.7}{sup +3.3} s (68{percent} c.i.) and E{sub {alpha}}=8.69 MeV (8{percent}), 8.76 MeV (23{percent}), 8.84 MeV (46{percent}), and 8.94 MeV (23{percent}) for {sup 265}Sg; and T{sub 1/2}=21{sub {minus}12}{sup +20} s (68{percent} c.i.) and E{sub {alpha}}=8.52 MeV (33{percent}) and 8.77 MeV (66{percent}) for {sup 266}Sg. The resolution of the detectors was between 50{endash}100 keV (full width at half maximum). Upper limits for SF of {le}35{percent} and {le}82{percent} were established for {sup 265}Sg and {sup 266}Sg, respectively. The upper limits for SF are given with a 16{percent} error probability. Using the lower error limits of the half-lives of {sup 265}Sg and {sup 266}Sg, the resulting lower limits for the partial SF half-lives are T{sub 1/2}{sup SF}({sup 265}Sg){ge}13 s and T{sub 1/2}{sup SF}({sup 266}Sg){ge}11 s. Correspondingly, the partial {alpha}-decay half-lives are between T{sub 1/2}{sup {alpha}}({sup 265}Sg)=4.7{endash}16.5 s (68{percent} c.i.) and T{sub 1/2}{sup {alpha}}({sup 266}Sg)=9{endash}228 s (68{percent} c.i.), using the upper and lower error limits of the half-lives of {sup 265}Sg and {sup 266}Sg. The lower limit on the partial SF half-life of {sup 266}Sg is in good agreement with

  4. Environmental Project of I.E.S. Antoni Maura

    NASA Astrophysics Data System (ADS)

    Crespi Salom, Pere

    2010-05-01

    Environmental Project of I.E.S. Antoni Maura Author(s): Pere Crespí i Salom Teacher of Department of Biology and Geology and Environmental Coordinator (2009-2010) from I.E.S. Antoni Maura . Mallorca. Illes Balears. Spain Teachers participating in the project : Myriam Fuentes Milani, Olga Ballester Nebot, Antoni Salom Ruiz, Julio René Loayza Casanova, Puy Aguirre Rémirez, Yolanda Martínez Laserna, Jaume Puppo Lama, Carme Arrom , Dolors Aguiló Segura, Marga Ordinas Boter, Angel Fernàndez Albertí , Immaculada Suau López, Antònia Florit Torrandell, Isabel Mateu Arcos, Román Piña Valls i Pere Crespí Salom. Our institute takes part since 2004 in adapting environmentally the schools in the Balearics which consists of developing activities which aim is that both teachers and students acquire habits so as to apply to their ordinary lives though different participative commissions ( 10-15 teachers): 1st commission: recycling and reusing materials. Enough bins in the classrooms and floors: yellow for plastic, blue for paper, and green for the other. We tend to use recycled materials in different celebrations such as Carnival, Christmas, Saint Jordi and Environmental day. We also organise workshops for the teachers to develop afterwards with the students and nature of environmental exposures. 2nd commission: Scatter information ( MonMaura, Maurifull, Green window and website).Throughout different means we inform the teachers and students about all the school activities and where to consult.( www.iesantonimaura.net, Playful area , environmental project ). 3rd commission: Reusing text books.( there is a students service of borrowing books and giving them back at the end of the school year if the book is in good use.) 4th commission: Improving the school surroundings, the back garden and garden with native plants. Department of Biology and Geology is responsible for caring for an organic garden and in turn improve the center's garden with native plants within the

  5. A Long-Term Space Astrophysics Research Program: The Evolution of the Quasar Continuum

    NASA Technical Reports Server (NTRS)

    Elvis, M.; Oliversen, Ronald K. (Technical Monitor)

    2001-01-01

    Four papers have been written. One reports on the major study funded by this grant: a pan-chromatic study of the quasar continuum at redshift 3. Two others make use of the quasar continuum shapes to find the minimum total accretion luminosity of the Universe, and hence the efficiency and spin of supermassive black holes; the second shows that the reemission of absorbed quasar radiation alleviates a major problem with galaxy formation and the FIR background. The last paper recognizes the role quasars may play in the initial formation of dust in the early Universe. The major study of a sample of z=3 and its comparison with a sample of z=0.l quasars across the whole X-ray to radio spectrum was completed and accepted for publication in ApJ Supplements. This study comprises the thesis work of Olga Kuhn. The two samples are matched in evolved luminosity, and so should be sampling the same black hole population at different z, and in different accretion states. Despite this no strong differences were found between the samples, except in the 'small bump' region of the optical/UV. This region is dominated by FeII emission, and may indicate abundance evolution in quasars. The lack of overall spectral changes argues strongly against a single population of quasars fading over cosmic time, and for a multiple generation, or multiple outburst model for quasars. A study of the total luminosity absorbed from quasars and re-emitted in the infrared produced two results (reported in two papers): The minimum intrinsic luminosity/Gpc(3) from AGN compared with the measured mass density in supermassive black holes [Gpc(-3)] requires a conversion efficiency of accreted mass into luminosity of greater than 15%. Non-rotating black holes cannot exceed 5% efficiency, while rapidly rotating black holes can reach 47%. Hence our result requires that most supermassive black holes must be rapidly rotating. The second result comes from considering the contribution that the re-radiated quasar

  6. Evidence for post last-glacial-maximum punctuated sea level rise found on the eastern Mediterranean coast of Israel

    NASA Astrophysics Data System (ADS)

    Katz, Oded; Goodman-Tchernov, Beverly

    2015-04-01

    The eustatic sea level curve for the eastern Mediterranean presents a general trend characterized by rapid post last-glacial-maximum rise (20,000 years ago), slowing approximately 6000 years ago and stabilizing at current sea-level 4000 years ago. Sea level evidence from portions of the Israeli coastline, suggest minimal to no hydro-glacio-isostatic influence on the local relative sea level curve, and no tectonic offsets for at least the past two thousand years. Recently, a submerged series of relict wave cut notches and erosional pits were identified along a sequence of coastal sites located approximately 20 km from one another (Michmoret, Olga, Caesarea, Dor) at 3 m and 6 m water depths. The features were carved into an upper-Pleistocene to Holocene eolianite sandstone, the age of which was previously constrained by OSL measurements to MIS 1-3. Elsewhere, similar features are widely used as sea-level markers. In this study, at some of the sites, we found a coinciding 3 m to 6 m submerged cliff with overhanging upper part, morphology that is comparable to the morphology of the modern coastal cliff. These submerged features should either suggest a tectonic offset, which is not favorable for the study area, or they might suggest that sea level rise has not been gradual, but rather punctuated, exhibiting pulses of sea level rise followed by periods of sea level stagnation. For the study site, the last stagnation took place at a few meters below current sea-level and enabled the development of the observed wave induced morphology within the eolianite. At present sea level, similar features exist and are being actively formed within the same host rock. At some of the sites, artificially-cut archaeological features from about the last 2000 years present with notches or erosional pits thereby providing insight into the period of time required for their creation due to their archaeological associations. Sea level rise might impacts the coastline significantly, with

  7. In memoriam: George Martin Baer, DVM, MPH, 1936-2009. The father of oral rabies vaccination.

    PubMed

    Grunenwald, Paul E

    2009-01-01

    George Martin Baer, known for his development of the oral rabies vaccine instrumental in rabies control in Europe, died on 2 June 2009 at the age of 73 in Mexico City, Mexico. He was born on 12 January 1936 in London, England, to German immigrants who had fled Nazi Germany. His family emigrated to the United States in 1940 where he grew up in New Rochelle, New York. George had a love of animals, particularly horses, which may have influenced his career path. He earned an undergraduate degree in agricultural sciences in 1954 from Cornell University followed by a degree in veterinary medicine in 1959. He then went on to earn a master's degree in public health in 1960 from the University of Michigan. During some time in Mexico, George met and fell in love with his wife, Maria Olga Lara. Thanks to James H. Steele, his long-time friend and mentor, he started his public health career with the Centers for Disease Control (CDC) and was assigned to the New York State Health Department where he learned epidemiology and virology. He went on to work on bat rabies at the CDC's Southwest Rabies Investigations Laboratory in New Mexico. From 1966 to 1969, he worked with the National Institute for Livestock Research (Instituto Nacional de Investigaciones Pecuarias: INIP) in Mexico and helped develop the Plan Derriengue to control paralytic bovine rabies which became the early work in the development of Mexico's rabies control programmes. He returned to Atlanta in 1969 to direct the CDC Rabies Laboratory. There, he led a team of researchers in developing an oral rabies vaccine for wildlife, earning him the title 'The Father of Oral Rabies Vaccination'. His text, The Natural History of Rabies, first published in 1975 and again in 1991, continues to be a definitive international reference for rabies control. After his retirement, George returned to Mexico and continued his research and training, working to develop not only public health programmes, but new researchers as well. At the

  8. A Giant of Astronomy and a Quantum of Solace - James Bond filming at Paranal

    NASA Astrophysics Data System (ADS)

    2008-03-01

    our director, Marc Forster and production designer, Dennis Gassner, both for its exceptional design and its remote location in the Atacama desert. It is a true oasis and the perfect hide-out for Dominic Greene, our villain, whom 007 is tracking in our new James Bond film." In addition to the shooting at the Residencia, further action will take place at the Paranal airstrip. The film crew present on Paranal includes Englishman Daniel Craig, taking again the role of James Bond, French actor Mathieu Amalric, leading lady Olga Kurylenko, from the Ukraine, as well as acclaimed Mexican actors, Joaquin Cosio and Jesus Ochoa. This cast from across Europe and Latin America mirrors the international staff that works for ESO at Paranal. After leaving Paranal at the end of the week, the film crew will shoot in other locations close to Antofagasta. Other sequences have been filmed in Panama and, following the Chilean locations, the unit will be travelling to Italy and Austria before returning to Pinewood Studios near London in May. QUANTUM OF SOLACE will be released in the UK on 31 October 2008, and in the US and internationally on 7 November 2008.

  9. EDITORIAL: XIII Mexican Workshop on Particles and Fields

    NASA Astrophysics Data System (ADS)

    Barranco, Juan; Contreras, Guillermo; Delepine, David; Napsuciale, Mauro

    2012-08-01

    Electroweak and Flavor Physics in whose classification we had Quark masses and mixing, Electroweak Symmetry Breaking, Heavy Quark Physics, Neutrinos, CP Violation, CKM and Rare Decays. The working group for this topic was formed by David Delepine, Lorenzo Díaz, Gerardo Herrera and Olga Félix Beltrán. The three topics included invited talks dedicated to reviewing theoretical and experimental aspects of the corresponding topic. We had also plenary topical sessions during the mornings and early afternoons and parallel thematic sessions were held late in the afternoons. The reviews sessions were delivered by invited speakers of international prestige on the corresponding subjects and having an active collaboration with the Mexican scientific community. The plenary topical sessions and parallel thematic sessions were given by active researchers both from abroad and working in México. The program included also a permanent poster session and the organizing committee awarded the best poster - a decision made by the three working groups - with a silver medal. On Sunday 23 October, we had an excursion to the ancient archaeological site of Plazuelas near Penjamo (Guanajuato). Plazuelas is a prehispanic archaeological site located just north of San Juan el Alto, some 2.7 kilometers north of federal highway 90 (Penjamo-Guadalajara), and about 11 kilometers west of the city of Penjamo in the state of Guanajuato, Mexico. The site has been recently opened to the public. This site is a very complex city, it was edified following the natural landscape surrounding it. This city was occupied between 600 and 900 a.C. After spending some time at this very interesting archaeological site, we went to Hacienda Corralejo, an hacienda where Tequila Corralejo is produced and we had a guided visit of the 'Tequilera' where the famous Corralejo blue bottle of Tequila is made. Hacienda Corralejo is very close to the orginal Hacienda where Miguel Hidalgo (a Mexican independence hero) was born which now

  10. Editorial

    NASA Astrophysics Data System (ADS)

    Dimitrijevic, M. S.; Popovic, L. C.

    . Orlov Paolo Paolicchi Paul Paquet Genadij I. Pinigin Sylvie Sahal-Brechot Dan Selaru N. D. Simonenko Eduardo Simonneau A. Shul'ga Magdalena Stavinschi Cristina Stoica T. I. Suchkova Emil Tatomir Svetlana A. Tolchelnikova-Muri V. I. Turenkov Margarita Yu. Volyanskaya A. Yu. Yacenko Vincento Zappala G. Zhen-Nian We are grateful to these authors for having chosen our journal, thereby conferring on the Serbian Astronomical Journal an international standing. This is also a suitable opportunity to thank the numerous referees who contributed to our Journal being better. During this period the referees officially registered (a number of them, mainly belonging to the editorial boards, remain unregistered) have been (in Brackets is the number of papers they reviewed): Trajko Angelov (11) Jelisaveta Arsenijevic (4) Olga Atanackovic-Vukmanovic (4) Milutin Blagojevic (1) Markyan S. Chubey (1) B. Ciric (2) Miodrag Dacic (2) Milan S. Dimitrijevic (43) Gojko Djurasevic (1) B. Djuric (1) Dragutin Djurovic (5) Stevica Djurovic (3) Petar Grujic (5) Slobodan Jankov (1) Zoran Knezevic (7) Nikola Konjevic (6) Vladimir Krsljanin (2) Aleksandar Kubicela (12) Mike Kuzmanoski (10) Jaroslav Labat (1) Jovan Lazovic (1) Ilija Lukacevic (5) Jovan Malisic (1) Milan Mijatov (1) Jelena Milogradov-Turin (2) Vladeta Milovanovic (6) Ljubisa Mitic (22) Radovan Mrkic (1) Ranko Muzijevic (4) Slobodan Ninkovic (30) Dragomir Olevic (3) Nada Pejovic (1) Georgije Popovic (18) Luka C. Popovic (12) Sofija Sadzakov (28) Jovan Simovljevic (7) Nicholas Spyrou (1) Bozidar Stanic (1) Miroljub Starcevic (1) S. Starcevic (1) Magdalena Stavinschi (1) Dragoljub Stefanovic (1) Dusan Saletic (9) Stevo Segan (1) Branislav Sevarlic (16) Djordje Teleki (10) Istvan Vince (42) Mirjana Vukicevic-Karabin (1) Vincento Zappala (1) Danilo Zulevic (2) In our register, in which M.S.D. began entering the submitted articles from January 1st, 1984, up to now, 455 of them are inscribed. A part of them has been published in Publications of

  11. Editorial

    NASA Astrophysics Data System (ADS)

    Dimitrijevic, M. S.; Popovic, L. C.

    . Orlov Paolo Paolicchi Paul Paquet Genadij I. Pinigin Sylvie Sahal-Brechot Dan Selaru N. D. Simonenko Eduardo Simonneau A. Shul'ga Magdalena Stavinschi Cristina Stoica T. I. Suchkova Emil Tatomir Svetlana A. Tolchelnikova-Muri V. I. Turenkov Margarita Yu. Volyanskaya A. Yu. Yacenko Vincento Zappala G. Zhen-Nian We are grateful to these authors for having chosen our journal, thereby conferring on the Serbian Astronomical Journal an international standing. This is also a suitable opportunity to thank the numerous referees who contributed to our Journal being better. During this period the referees officially registered (a number of them, mainly belonging to the editorial boards, remain unregistered) have been (in Brackets is the number of papers they reviewed): Trajko Angelov (11) Jelisaveta Arsenijevic (4) Olga Atanackovic-Vukmanovic (4) Milutin Blagojevic (1) Markyan S. Chubey (1) B. Ciric (2) Miodrag Dacic (2) Milan S. Dimitrijevic (43) Gojko Djurasevic (1) B. Djuric (1) Dragutin Djurovic (5) Stevica Djurovic (3) Petar Grujic (5) Slobodan Jankov (1) Zoran Knezevic (7) Nikola Konjevic (6) Vladimir Krsljanin (2) Aleksandar Kubicela (12) Mike Kuzmanoski (10) Jaroslav Labat (1) Jovan Lazovic (1) Ilija Lukacevic (5) Jovan Malisic (1) Milan Mijatov (1) Jelena Milogradov-Turin (2) Vladeta Milovanovic (6) Ljubisa Mitic (22) Radovan Mrkic (1) Ranko Muzijevic (4) Slobodan Ninkovic (30) Dragomir Olevic (3) Nada Pejovic (1) Georgije Popovic (18) Luka C. Popovic (12) Sofija Sadzakov (28) Jovan Simovljevic (7) Nicholas Spyrou (1) Bozidar Stanic (1) Miroljub Starcevic (1) S. Starcevic (1) Magdalena Stavinschi (1) Dragoljub Stefanovic (1) Dusan Saletic (9) Stevo Segan (1) Branislav Sevarlic (16) Djordje Teleki (10) Istvan Vince (42) Mirjana Vukicevic-Karabin (1) Vincento Zappala (1) Danilo Zulevic (2) In our register, in which M.S.D. began entering the submitted articles from January 1st, 1984, up to now, 455 of them are inscribed. A part of them has been published in Publications of

  12. EDITORIAL: Ongoing climatic change in Northern Eurasia: justification for expedient research

    NASA Astrophysics Data System (ADS)

    Groisman, Pavel; Soja, Amber J.

    2009-12-01

    season weather in Kazakhstan C K Wright, K M de Beurs, Z K Akhmadieva, P Y Groisman and G M Henebry Climate change in Inner Mongolia from 1955 to 2005—trends at regional, biome and local scales N Lu, B Wilske, J Ni, R John and J Chen Application of the Snowmelt Runoff model in the Kuban river basin using MODIS satellite images M V Georgievsky Record Russian river discharge in 2007 and the limits of analysis A I Shiklomanov and R B Lammers Paleoclimatic reconstructions for the south of Valdai Hills (European Russia) as paleo-analogs of possible regional vegetation changes under global warming E Novenko, A Olchev, O Desherevskaya and I Zuganova Diagnosis of the record discharge of Arctic-draining Eurasian rivers in 2007 Michael A Rawlins, Mark C Serreze, Ronny Schroeder, Xiangdong Zhang and Kyle C McDonald Studies of the cryosphere in Northern Eurasia Groundwater storage changes in arctic permafrost watersheds from GRACE and in situ measurements Reginald R Muskett and Vladimir E Romanovsky Changes in snow cover over Northern Eurasia in the last few decades O N Bulygina, V N Razuvaev and N N Korshunova Modeling sub-sea permafrost in the East Siberian Arctic Shelf: the Dmitry Laptev Strait D Nicolsky and N Shakhova Snow cover basal ice layer changes over Northern Eurasia since 1966 Olga N Bulygina, Pavel Ya Groisman, Vyacheslav N Razuvaev and Vladimir F Radionov Snow cover and permafrost evolution in Siberia as simulated by the MGO regional climate model in the 20th and 21st centuries I M Shkolnik, E D Nadyozhina, T V Pavlova, E K Molkentin and A A Semioshina Studies of the biosphere in Northern Eurasia The influence of regional surface soil moisture anomalies on forest fires in Siberia observed from satellites A Bartsch, H Balzter and C George Change and persistence in land surface phenologies of the Don and Dnieper river basins V Kovalskyy and G M Henebry Effects of climatic changes on carbon dioxide and water vapor fluxes in boreal forest ecosystems of European part of

  13. Argonne National Laboratory summary site environmental report for calendar year 2007.

    SciTech Connect

    Golchert, N. W.

    2009-05-22

    , partners divided work equally and began to carefully summarize. Groups summaries were edited, not only within groups, but also by other groups, in order to acquire a different perspective. Finally, Mr. Howard, our Biology II instructor, took a final look at the products before sending them off for the final review by Argonne. The final project was a 16-page pamphlet. The students reacted positively to the project. Asked if she was glad that she chose to work on the Argonne project, Katie Hanson said, 'Yes. I have enjoyed having the opportunity to become a published author. Also, it is an honor to be able to work with a prestigious, nationally recognized laboratory such as Argonne'. There were difficult aspects as well. Student Olga Zagariya said the hardest part of the project was 'trying to choose which information to put in the summary and which information to leave out, because it all seemed to be important'. It seems that everyone was satisfied with his or her section.

  14. Experimental investigation of effect of surface gravity waves and spray on heat and momentum flux at strong wind conditions

    NASA Astrophysics Data System (ADS)

    Troitskaya, Yuliya; Sergeev, Daniil; Vdovin, Maxim; Kandaurov, Alexander; Ermakova, Olga; Kazakov, Vassily

    2015-04-01

    instability. This work was supported by the Russian Foundation of Basic Research (13-05-00865, 14-05-91767, 13-05-12093, 15-05-) and Alexander Kandaurov, Maxim Vdovin and Olga Ermakova acknowledge partial support from Russian Science Foundation (Agreement No. 14-17-00667).

  15. PREFACE: International Conference on Inverse Problems 2010

    NASA Astrophysics Data System (ADS)

    Hon, Yiu-Chung; Ling, Leevan

    2011-03-01

    Sciences, South KoreaYu Jiang, Hokkaido University, JapanDe-Xing Kong, Zhejiang University, ChinaOlga Krivorotko, Novosibirsk State University, RussiaPhilipp Küegler, Austrian Academy of Sciences, AustriaKiwoon Kwon, Dongguk University, South KoreaChun-Kong Law, National Sun Yat-sen University, TaiwanJune-Yub Lee, Ewha Womans University, South KoreaMing Li, City University of Hong Kong, HKSARMikyoung Lim, Korea Advanced Institute of Science and Technology (KAIST), South KoreaJijun Liu, Southeast University, ChinaXiaodong Liu, Chinese Academy of Sciences, ChinaFuming Ma, Jilin University, ChinaHang Ma, Shanghai University, ChinaValdemar Melicher, Ghent University, BelgiumGen Nakamura, Hokkaido University, JapanLong Tuan Nguyen, Ruhr-Universitat Bochum, GermanyEtibar Panakhov, Firat University, TurkeyRobert Plato, University of Siegen, GermanyJean-Pierre Puel, The University of Tokyo, JapanHans-Jürgen Reinhardt, University of Siegen, GermanyMaxim Shishlenin, Sobolev Institute of Mathematics, RussiaIlya Silvestrov, Institute of Petroleum Geology and Geophysics SB RAS, RussiaMourad Sini, Austrian Academy of Sciences, AustriaJán Sládek, Slovak Academy of Sciences, SlovakiaZhijun Tan, Sun Yat-sen University, ChinaQuan-Fang Wang, The Chinese University of Hong Kong, HKSARWenyan Wang, The University of Tokyo, JapanPihua Wen, Queen Mary, University of London, UKZhihai Xiang, Tsinghua University, ChinaXiang-Tuan Xiong, Northwest Normal University, ChinaDinghua Xu, Zhejiang Sci-Tech University, ChinaYongzhi Steve Xu, University of Louisville, USAJiaqing Yang, Chinese Academy of Sciences, ChinaJian Zhang, Sichuan Normal University, ChinaYing Zhang, Fudan University, ChinaTing Zhou, University of Washington, USAJianxin Zhu, Zhejiang University, China Advisory BoardH Thomas Banks, North Carolina State University, USATony F Chan, The Hong Kong University of Science and Technology, HKSARHeinz W Engl, Johannes Kepler Universitát Linz, AustriaRainer Kress, Georg-August-Universitát G

  16. PREFACE: 6th International Conference on Aperiodic Crystals (APERIODIC'09)

    NASA Astrophysics Data System (ADS)

    Grimm, Uwe; McGrath, Rónán; Degtyareva, Olga; Sharma, Hem Raj

    2010-04-01

    essential support during the organising stage and during the conference itself, and we would particularly like to thank the conference secretary, Mrs Angie Reid, for her excellent administrative support before, during and after the conference, and for her help in the production of this volume. We are very much indebted to out co-editors, Dr Olga Degtyareva (Edinburgh) and Dr Hem Raj Sharma (Liverpool), for their contributions to the editing of this volume. Finally, and most of all, we would like to thank all participants of the conference for coming to Liverpool, for contributing by presenting their recent work and taking part in discussions, and for creating such an enjoyable and fruitful collegiate atmosphere throughout the week. Last but not least we would like to express our gratitude for the generous financial support we received from the Open University, the University of Liverpool and the Institute of Physics (Mathematical and Theoretical Physics Group and Thin Films and Surfaces Group). The International Union of Crystallography provided financial sponsorship which was allocated to support the participation of 15 young scientists. The European Network of Excellence on Complex Metallic Alloys provided travel and subsistence support to members of participating organisations. Rónán McGrath Uwe Grimm Conference photograph

  17. PREFACE: Nano- and microfluidics Nano- and microfluidics

    NASA Astrophysics Data System (ADS)

    Jacobs, Karin

    2011-05-01

    compressible fluids Kerstin Falk and Klaus Mecke Wetting, roughness and flow boundary conditions Olga I Vinogradova and Aleksey V Belyaev Molecular transport and flow past hard and soft surfaces: computer simulation of model systems F Léonforte, J Servantie, C Pastorino, and M Müller Simulations of slip flow on nanobubble-laden surfaces J Hyväluoma, C Kunert and J Harting Electrophoretic transport of biomolecules across liquid-liquid interfaces Thomas Hahn, Götz Münchow and Steffen Hardt Wetting morphologies and their transitions in grooved substrates Ralf Seemann, Martin Brinkmann, Stephan Herminghaus, Krishnacharya Khare, Bruce M Law, Sean McBride, Konstantina Kostourou, Evgeny Gurevich, Stefan Bommer, Carsten Herrmann and Dominik Michler Imbibition in mesoporous silica: rheological concepts and experiments on water and a liquid crystal Simon Gruener, and Patrick Huber Theory and simulations of water flow through carbon nanotubes: prospects and pitfalls Douwe Jan Bonthuis, Klaus F Rinne, Kerstin Falk, C Nadir Kaplan, Dominik Horinek, A Nihat Berker, Lydéric Bocquet, and Roland R Netz Structure and flow of droplets on solid surfaces P Müller-Buschbaum, D Magerl, R Hengstler, J-F Moulin, V Körstgens, A Diethert, J Perlich, S V Roth, M Burghammer, C Riekel, M Gross, F Varnik, P Uhlmann, M Stamm, J M Feldkamp and C G Schroer Stability and dynamics of droplets on patterned substrates: insights from experiments and lattice Boltzmann simulations F Varnik, M Gross, N Moradi, G Zikos, P Uhlmann, P Müller-Buschbaum, D Magerl, D Raabe, I Steinbach and M Stamm Micro-capsules in shear flow R Finken, S Kessler and U Seifert Micro-rheology on (polymer-grafted) colloids using optical tweezers C Gutsche, M M Elmahdy, K Kegler, I Semenov, T Stangner, O Otto, O Ueberschär, U F Keyser, M Krueger, M Rauscher, R Weeber, J Harting, Y W Kim, V Lobaskin, R R Netz, and F Kremer Dynamics of colloids in confined geometries L Almenar and M Rauscher Dynamics of red blood cells and vesicles in

  18. EDITORIAL: Ongoing climatic change in Northern Eurasia: justification for expedient research

    NASA Astrophysics Data System (ADS)

    Groisman, Pavel; Soja, Amber J.

    2009-12-01

    season weather in Kazakhstan C K Wright, K M de Beurs, Z K Akhmadieva, P Y Groisman and G M Henebry Climate change in Inner Mongolia from 1955 to 2005—trends at regional, biome and local scales N Lu, B Wilske, J Ni, R John and J Chen Application of the Snowmelt Runoff model in the Kuban river basin using MODIS satellite images M V Georgievsky Record Russian river discharge in 2007 and the limits of analysis A I Shiklomanov and R B Lammers Paleoclimatic reconstructions for the south of Valdai Hills (European Russia) as paleo-analogs of possible regional vegetation changes under global warming E Novenko, A Olchev, O Desherevskaya and I Zuganova Diagnosis of the record discharge of Arctic-draining Eurasian rivers in 2007 Michael A Rawlins, Mark C Serreze, Ronny Schroeder, Xiangdong Zhang and Kyle C McDonald Studies of the cryosphere in Northern Eurasia Groundwater storage changes in arctic permafrost watersheds from GRACE and in situ measurements Reginald R Muskett and Vladimir E Romanovsky Changes in snow cover over Northern Eurasia in the last few decades O N Bulygina, V N Razuvaev and N N Korshunova Modeling sub-sea permafrost in the East Siberian Arctic Shelf: the Dmitry Laptev Strait D Nicolsky and N Shakhova Snow cover basal ice layer changes over Northern Eurasia since 1966 Olga N Bulygina, Pavel Ya Groisman, Vyacheslav N Razuvaev and Vladimir F Radionov Snow cover and permafrost evolution in Siberia as simulated by the MGO regional climate model in the 20th and 21st centuries I M Shkolnik, E D Nadyozhina, T V Pavlova, E K Molkentin and A A Semioshina Studies of the biosphere in Northern Eurasia The influence of regional surface soil moisture anomalies on forest fires in Siberia observed from satellites A Bartsch, H Balzter and C George Change and persistence in land surface phenologies of the Don and Dnieper river basins V Kovalskyy and G M Henebry Effects of climatic changes on carbon dioxide and water vapor fluxes in boreal forest ecosystems of European part of

  19. Poster Session C

    PubMed Central

    2014-01-01

    end we established a resource of SRM assays for CRL complexes and their interactors. This resource comprises assays for over 300 proteins including all cullins, their known adaptors and substrate receptors as well as known CRL regulators and E2 ligases. We will use this resource to accurately quantify changes in affinity purified CRL complexes comparing HIV-1 and mock infected cells. Additionally, infections with Vif, Vpu or Vpr deleted HIV-1 mutants will allow linking specific CRL PPIs to each of the viral proteins. For the APs we generated Jurkat T cell lines stably expressing tetracycline inducible versions of 6 tagged cullins (CUL1, CUL2, CUL3, CUL4A/B, and CUL5) and their 4 respective adapter proteins (SKP1, TCEB1, TCEB2, and DDB1). This project will provide the first comprehensive, quantitative dynamic CRL PPI network in the context of HIV-1 infection and potentially reveal new ubiquitin ligase-substrate relationships modulated by the viral proteins Vif, Vpu and Vpr. C.13 Validating Plasma-based Biomarkers for Ovarian Cancer Using Targeted Proteomics Ruth Hüttenhain1, Meena Choi2, Ching-Yun Chang2, Daniela Dinulescu3, Olga Vitek2, Emma Nimèus-Malmström4, Ruedi Aebersold5 1University of California, San Francisco, CA, USA; 2Purdue University, IN, USA; 3Dana-Farber/Harvard Cancer Institute, Boston, MA, USA; 4Lund University, Sweden; 5ETH Zurich, Switzerland The identification of protein biomarkers for early detection of ovarian cancer (OC) promises to improve management and outcome of the disease. Protein biomarker research is currently hampered by the limited availability of quantitative assays that would allow for sensitive and reproducible quantification of candidate biomarkers in complex samples such as blood plasma. In recent years selected reaction monitoring (SRM), a targeted mass spectrometric method has emerged and promises to overcome the aforementioned limitation. Here, we describe a large-scale biomarker validation study for OC using an SRM