TY - GEN A1 - Morel, T. A1 - Castro, Norberto A1 - Fossati, Luca A1 - Hubrig, Swetlana A1 - Langer, N. A1 - Przybilla, Norbert A1 - Schöller, Markus A1 - Carroll, Thorsten Anthony A1 - Ilyin, Ilya A1 - Irrgang, Andreas A1 - Oskinova, Lida A1 - Schneider, Fabian R. N. A1 - Simon Díaz, Sergio A1 - Briquet, Maryline A1 - González, Jean-Francois A1 - Kharchenko, Nina A1 - Nieva, M.-F. A1 - Scholz, Ralf-Dieter A1 - de Koter, Alexander A1 - Hamann, Wolf-Rainer A1 - Herrero, Artemio A1 - Maíz Apellániz, Jesus A1 - Sana, Hugues A1 - Arlt, Rainer A1 - Barbá, Rodolfo H. A1 - Dufton, Polly A1 - Kholtygin, Alexander A1 - Mathys, Gautier A1 - Piskunov, Anatoly E. A1 - Reisenegger, Andreas A1 - Spruit, H. A1 - Yoon, S.-C. T1 - The B fields in OB stars (BOB) survey T2 - Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe N2 - The B fields in OB stars (BOB) survey is an ESO large programme collecting spectropolarimetric observations for a large number of early-type stars in order to study the occurrence rate, properties, and ultimately the origin of magnetic fields in massive stars. As of July 2014, a total of 98 objects were observed over 20 nights with FORS2 and HARPSpol. Our preliminary results indicate that the fraction of magnetic OB stars with an organised, detectable field is low. This conclusion, now independently reached by two different surveys, has profound implications for any theoretical model attempting to explain the field formation in these objects. We discuss in this contribution some important issues addressed by our observations (e.g., the lower bound of the field strength) and the discovery of some remarkable objects. T3 - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - 821 KW - magnetic fields KW - stars: early-type KW - stars: magnetic fields KW - stars: individual (HD 164492C, CPD –57 ◦ 3509, HD 54879, β CMa, ε CMa) Y1 - 2020 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-415238 SN - 1866-8372 IS - 821 ER - TY - INPR A1 - Martin, C.-I. A1 - Schulze, Bert-Wolfgang T1 - The quantisation of edge symbols N2 - We investigate operators on manifolds with edges from the point of view of the symbolic calculus induced by the singularities. We discuss new aspects of the quantisation of edge-degenerate symbols which lead to continuous operators in weighted edge spaces. T3 - Preprint - (2005) 19 Y1 - 2005 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-29959 ER - TY - JOUR A1 - Chang, D. -C. A1 - Viahmoudi, M. Hedayat A1 - Schulze, Bert-Wolfgang T1 - PSEUDO-DIFFERENTIAL ANALYSIS WITH TWISTED SYMBOLIC STRUCTURE JF - Journal of nonlinear and convex analysis : an international journal N2 - This paper is devoted to pseudo-differential operators and new applications. We establish necessary extensions of the standard calculus to specific classes of operator-valued symbols occurring in principal symbolic hierarchies of operators on manifolds with singularities or stratified spaces. KW - Pseudo-differential operators KW - boundary value problems KW - operator valued symbols KW - Fourier transform Y1 - 2016 SN - 1345-4773 SN - 1880-5221 VL - 17 SP - 1889 EP - 1937 PB - Yokohama Publishers CY - Yokohama ER - TY - JOUR A1 - Chang, D. -C. A1 - Schulze, Bert-Wolfgang T1 - Calculus on spaces with higher singularities JF - Journal of pseudo-differential operators and applications N2 - We establish extensions of the standard pseudo-differential calculus to specific classes of operators with operator-valued symbols occurring in symbolic hierarchies motivated by manifolds with higher singularities or stratified spaces. KW - Pseudo-differential operators KW - Operator-valued symbols KW - Fourier and Mellin transform Y1 - 2017 U6 - https://doi.org/10.1007/s11868-016-0180-x SN - 1662-9981 SN - 1662-999X VL - 8 SP - 585 EP - 622 PB - Springer CY - Basel ER - TY - THES A1 - Wang, Victor-C. T1 - Injury and illness risk factors for elite athletes in training environment T1 - Verletzung und Krankheit Risikofaktoren für Elite-Athleten im Trainingsumfeld BT - a comparison between Germany and Taiwan BT - ein Vergleich zwischen Deutschland und Taiwan N2 - Since 1998, elite athletes’ sport injuries have been monitored in single sport event, which leads to the development of first comprehensive injury surveillance system in multi-sport Olympic Games in 2008. However, injury and illness occurred in training phases have not been systematically studied due to its multi-facets, potentially interactive risk related factors. The present thesis aim to address issues of feasibility of establishing a validated measure for injury/illness, training environment and psychosocial risk factors by creating the evaluation tool namely risk of injury questionnaire (Risk-IQ) for elite athletes, which based on IOC consensus statement 2009 recommended content of preparticipation evaluation(PPE) and periodic health exam (PHE). A total of 335 top level athletes and a total of 88 medical care providers from Germany and Taiwan participated in tow “cross-sectional plus longitudinal” Risk-IQ and MCPQ surveys respectively. Four categories of injury/illness related risk factors questions were asked in Risk-IQ for athletes while injury risk and psychological related questions were asked in MCPQ for MCP cohorts. Answers were quantified scales wise/subscales wise before analyzed with other factors/scales. In addition, adapted variables such as sport format were introduced for difference task of analysis. Validated with 2-wyas translation and test-retest reliabilities, the Risk-IQ was proved to be in good standard which were further confirmed by analyzed results from official surveys in both Germany and Taiwan. The result of Risk-IQ revealed that elite athletes’ accumulated total injuries, in general, were multi-factor dependent; influencing factors including but not limited to background experiences, medical history, PHE and PPE medical resources as well as stress from life events. Injuries of different body parts were sport format and location specific. Additionally, medical support of PPE and PHE indicated significant difference between German and Taiwan. The result of the present thesis confirmed that it is feasible to construct a comprehensive evalua-tion instrument for heterogeneous elite athletes cohorts’ risk factor analysis for injury/illness oc-curred during their non-competition periods. In average and with many moderators involved, Ger-man elite athletes have superior medical care support yet suffered more severe injuries than Tai-wanese counterparts. Opinions of injury related psychological issues reflected differently on vari-ous MCP groups irrespective of different nationalities. In general, influencing factors and interac-tions existed among relevant factors in both studies which implied further investigation with multiple regression analysis is needed for better understanding. N2 - Seit 1998 werden Sportverletzungen von Elitesportlern in Einzeldisziplinen untersucht und überwacht. Daraus entwickelte sich das erste Überwachungssystem von Sportverletzungen für verschiedene Sportdisziplinen, das zum ersten Mal 2008 bei den Olympischen Spielen zum Einsatz kam. Verletzungen und Krankheiten, die aus dem Training resultieren können, wurden bisher noch nicht systematisch beschrieben, da die potentiellen Verletzungsfaktoren vielfältig sein können. Die vorliegende Dissertation hat zum Ziel, Fragen der Zweckmäßigkeit einer validierten Maßnahme zum Verletzungsrisiko und den damit verbundenen psychosozialen Faktoren zu untersuchen. Ausgangspunkt für die Untersuchung ist das IOC consensus statement aus dem Jahr 2009 mit den beiden Bereichen PPE und PHE. 335 Elitesportler und 88 sportmedizinische Versorger aus Deutschland und Taiwan nahmen (zwischen Oktober 2013 und Februar 2014) an einer Querschnitts- und Längsstudie (Risk-IQ und MCPQ) teil. In der Risk-IQ-Umfrage unter den Elitesportlern wurden Fragen zu vier Kategorien von Verletzungsfaktoren gestellt. Die sportmedizinischen Versorger beantworteten Fragen zu Verletzungsrisiken und psychologische Fragen. Die Antworten wurden in Skalen und Unterskalen quantifiziert, bevor sie mit anderen Faktoren analysiert wurden. Darüber hinaus wurden angepasste Variablen wie zum Beispiel das Sportformat eingeführt. Im Vorfeld der Studie wurden die Übersetzungen der Umfragefragen validiert und Reliabilitäts-Test und Retests durchgeführt, bevor die Umfragen in Deutschland und Taiwan durchgeführt wurden. Das Ergebnis der Umfrage unter den Elitesportlern zeigt, dass die Sportverletzungen im Allgemeinen von verschiedenen Faktoren abhängig sind: Trainingserfahrungen, Leistungsniveau, medizinische Vorgeschichte, PHE und PPE Ressourcen sowie von psychosozialem Stress, der durch bestimmte Erlebnisse oder Schicksalsschläge ausgelöst werden kann. Die Art der Verletzungen werden durch die Sportart und den Trainingsort beeinflusst. Auch die medizinische Versorgung im Rahmen der PPE und PHE ist signifikant verschieden zwischen Deutschland und Taiwan. Im Ergebnis zeigt sich, dass es anhand eines umfassenden Erhebungsinstruments möglich ist, Verletzungsfaktoren für Elite-Athleten zu identifizieren. Zusammenfassend lässt sich sagen, dass deutsche Elitesportler eine bessere medizinische Versorgung genießen als taiwanische Elitesportler. Allerdings sind sie auch von schwereren Verletzungen betroffen. Die Antworten zu den psychosozialen Einflussfaktoren gehen auseinander und lassen sich nicht auf Sportler einer Nationalität beschränken. KW - injury and illness KW - risk factors KW - elite athlete KW - sport training KW - Germany KW - Taiwan KW - Risikofaktoren KW - Verletzung KW - Elite-Athleten KW - Deutschland KW - Taiwan KW - injury surveillance KW - multi-sports KW - IOC KW - Olympic Games KW - national Olympic committees (NOCs) KW - international sport federations (IFs) KW - international competition participation KW - training phases KW - interaction KW - feasibility KW - validated measure KW - training environment KW - psychosocial KW - evaluation tool KW - sport injury KW - questionnaire KW - Risk-IQ KW - IOC consensus statement 2009 KW - pre-participation evaluation (PPE) KW - periodic health exam (PHE) KW - medical care providers (MCP) KW - medical care providers questionnaire (MCPQ) KW - cross-sectional KW - longitudinal KW - intra-class correlation coefficient (ICC) KW - factor analysis KW - scales KW - sport format KW - sport location KW - 2-wyas translation KW - forward and backward translation KW - test-retest reliabilities KW - multi-factor KW - medical history KW - medical resources KW - stress KW - inventory of life events (ILE) KW - perceived stress scale (PSS) KW - overtraining syndrome KW - body parts KW - medical education KW - medical support KW - comprehensive evaluation instrument KW - heterogeneous cohorts KW - non-competition periods KW - moderators KW - severe injury KW - opinions KW - nationalities KW - interactions KW - multiple logistic regression KW - Colorado injury report system (CIRS) KW - sport injury risk factors model KW - TRIPP model KW - stress and injury model KW - Bland and Altman plot Y1 - 2016 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-100925 ER - TY - JOUR A1 - Kleinpeter, Erich A1 - Koch, Andreas A1 - Fischer, G. A1 - Askolin, C.-P. T1 - 13 C NMR, 15 N NMR and quantum-chemical study of the tautomerism of 2-substituted 5-ME-7-OH-1,2,4-triazolo[1,5- a]pyrimidines Y1 - 1997 ER - TY - JOUR A1 - Shprits, Yuri Y. A1 - Kellerman, Adam C . A1 - Aseev, Nikita A1 - Drozdov, Alexander A1 - Michaelis, Ingo T1 - Multi-MeV electron loss in the heart of the radiation belts JF - Geophysical research letters N2 - Significant progress has been made in recent years in understanding acceleration mechanisms in the Earth's radiation belts. In particular, a number of studies demonstrated the importance of the local acceleration by analyzing the radial profiles of phase space density (PSD) and observing building up peaks in PSD. In this study, we focus on understanding of the local loss using very similar tools. The profiles of PSD for various values of the first adiabatic invariants during the previously studied 17 January 2013 storm are presented and discussed. The profiles of PSD show clear deepening minimums consistent with the scattering by electromagnetic ion cyclotron waves. Long-term evolution shows that local minimums in PSD can persist for relatively long times. During considered interval of time the deepening minimums were observed around L* = 4 during 17 January 2013 storm and around L* = 3.5 during 1 March 2013 storm. This study shows a new method that can help identify the location, magnitude, and time of the local loss and will help quantify local loss in the future. This study also provides additional clear and definitive evidence that local loss plays a major role for the dynamics of the multi-MeV electrons. Y1 - 2017 U6 - https://doi.org/10.1002/2016GL072258 SN - 0094-8276 SN - 1944-8007 VL - 44 IS - 3 SP - 1204 EP - 1209 PB - American Geophysical Union CY - Washington ER -