@article{8618, author = {{Scheibner, R and König, M and Reuter, Dirk and Wieck, A D and Gould, C and Buhmann, H and Molenkamp, L W}}, issn = {{1367-2630}}, journal = {{New Journal of Physics}}, title = {{{Quantum dot as thermal rectifier}}}, doi = {{10.1088/1367-2630/10/8/083016}}, year = {{2008}}, } @article{4187, abstract = {{We study phonon-assisted electron tunneling in semiconductor quantum dot molecules. In particular, singletsinglet relaxation in a two-electron-doped structure is considered. The influence of Coulomb interaction is discussed via comparison with a single-electron system. We find that the relaxation rate reaches similar values in the two cases but the Coulomb interaction shifts the maximum rates toward larger separations between the dots. The difference in electron-phonon interaction between deformation potential and piezoelectric coupling is investigated. We show that the phonon-induced tunneling between two-electron singlet states is a fast process, taking place on the time scales of the order of a few tens of picoseconds.}}, author = {{Grodecka, A. and Machnikowski, P. and Förstner, Jens}}, issn = {{1098-0121}}, journal = {{Physical Review B}}, keywords = {{tet_topic_qd}}, number = {{8}}, publisher = {{American Physical Society (APS)}}, title = {{{Phonon-assisted tunneling between singlet states in two-electron quantum dot molecules}}}, doi = {{10.1103/physrevb.78.085302}}, volume = {{78}}, year = {{2008}}, } @article{4317, abstract = {{Phonon-assisted singlet-singlet relaxation in semiconductor quantum dot molecules is studied theoretically. Laterally coupled quantum dot structures doped with two electrons are considered. We take into account interaction with acoustic phonon modes via deformation potential and piezoelectric coupling. We show that piezoelectric mechanism for the considered system is of great importance and for some ranges of quantum dot molecule parameters is the dominant contribution to relaxation. It is shown that the phonon-assisted tunneling is much faster (down to ∼ 6 ps even at zero temperature) in comparison with other decoherence processes. The influence of Coulomb interaction is discussed and its consequences are indicated. We calculate the relaxation rates for GaAs quantum dot molecules and study the dependence on quantum dot size, distance and offset between the constituent quantum dots. In addition the temperature dependence of the tunneling rates is analyzed.}}, author = {{Grodecka, Anna and Machnikowski, Paweł and Förstner, Jens}}, issn = {{1610-1634}}, journal = {{physica status solidi (c)}}, keywords = {{tet_topic_qd}}, number = {{2}}, pages = {{474--478}}, publisher = {{Wiley}}, title = {{{Theoretical study of phononassisted singlet-singlet relaxation in two-electron semiconductor quantum dot molecules}}}, doi = {{10.1002/pssc.200880319}}, volume = {{6}}, year = {{2008}}, } @article{35349, abstract = {{The effect of Berry’s phase on the nuclear quadrupole resonance (NQR) spectra of rotating powder samples is studied experimentally, and its application for the determination of the electric field gradient asymmetry η is demonstrated. The NQR frequency splittings, which are observed for the spin 3/2 nucleus of 35Cl in powder samples of p-dichlorobenzene (C6H4Cl2) and cyanuric chloride (C3N3Cl3), are interpreted as a manifestation of Berry’s phase, associated with the adiabatically changing Hamiltonian due to sample rotation. The accumulation of Berry’s phase during the rotation process is responsible for the observed dependence of the NQR line shape on the rotation frequency and the asymmetry parameter. The proposed method for the determination of η involves the analysis of the NQR powder patterns of the rotating samples.}}, author = {{Sinyavsky, Nikolay and Maćkowiak, Mariusz and Schmidt, Claudia}}, issn = {{1865-7109}}, journal = {{Zeitschrift für Naturforschung A}}, keywords = {{Physical and Theoretical Chemistry, General Physics and Astronomy, Mathematical Physics}}, number = {{1-2}}, pages = {{81--87}}, publisher = {{Walter de Gruyter GmbH}}, title = {{{Manifestation of Berry’s Phase in Nuclear Quadrupole Resonance Spectra of Rotating Powder Samples}}}, doi = {{10.1515/zna-2008-1-214}}, volume = {{63}}, year = {{2008}}, } @article{35351, author = {{Medronho, B. and Shafaei, S. and Szopko, R. and Miguel, M. G. and Olsson, U. and Schmidt, Claudia}}, issn = {{0743-7463}}, journal = {{Langmuir}}, keywords = {{Electrochemistry, Spectroscopy, Surfaces and Interfaces, Condensed Matter Physics, General Materials Science}}, number = {{13}}, pages = {{6480--6486}}, publisher = {{American Chemical Society (ACS)}}, title = {{{Shear-Induced Transitions between a Planar Lamellar Phase and Multilamellar Vesicles: Continuous versus Discontinuous Transformation}}}, doi = {{10.1021/la800326a}}, volume = {{24}}, year = {{2008}}, } @inbook{35350, author = {{Schmidt, Claudia}}, booktitle = {{Modern Magnetic Resonance}}, isbn = {{9781402038945}}, publisher = {{Springer Netherlands}}, title = {{{Rheo-NMR Spectroscopy}}}, doi = {{10.1007/1-4020-3910-7_168}}, year = {{2008}}, } @inproceedings{7642, author = {{Piegdon, Karoline A. and Matthias, Heinrich and Meier, Cedrik and Kitzerow, Heinz-Siegfried}}, booktitle = {{Emerging Liquid Crystal Technologies III}}, editor = {{Chien, Liang-Chy}}, publisher = {{SPIE}}, title = {{{Tunable optical properties of photonic crystals and semiconductor microdisks using liquid crystals}}}, doi = {{10.1117/12.774194}}, year = {{2008}}, } @article{36070, author = {{Schlegel-Matthies, Kirsten}}, issn = {{0342-5088}}, journal = {{Haushalt & Bildung}}, number = {{2}}, pages = {{3--5}}, publisher = {{Schneider-Verlag}}, title = {{{Konsumentinnen und Konsumenten - politisch denkende und moralisch handelnde Akteure}}}, volume = {{85}}, year = {{2008}}, } @inbook{51035, author = {{Hansen, Stefan and Kukuk, Marc and Braun, Sebastian}}, booktitle = {{Sozialisation und Sport im Lebensverlauf. Jahrestagung der dvs-Sektion Sportsoziologie in Kooperation mit der dvs-Sektion Sportpädagogik vom 17. - 19. September in Chemnitz ; Abstracts}}, editor = {{Nagel, Siegfried}}, pages = {{40--41}}, publisher = {{Czwalina}}, title = {{{Kompetenzerwerb zum und durch Bürgerengagement. Evaluation eines formellen Ausbildungsprogramms im Sport}}}, year = {{2008}}, } @book{35011, abstract = {{Sportvereine sind seit Langem erheblichen Belastungsproben durch neue Anforderungen und höhere Erwartungen ausgesetzt. Als Reaktion hierauf schaffen sie neue Sportangebote, verändern ihre Mitgliedschaftsbedingungen oder stellen bezahlte Mitarbeiter an. Mit Erfolg: die Vereinsmitgliedschaften im DOSB steigen und die Gesamtzahl der Vereine wächst. Die Sportvereine haben, wie es scheint, die Probleme im Griff. Doch dieses Wachstum birgt auch Risiken. Insbesondere die Tendenz zur Ausweitung bezahlter Mitarbeit unter veränderten Bedingungen ehrenamtlichen Engagements macht den Vereinen Sorgen. Die Konsequenzen dieser Entwicklung sind noch lange nicht absehbar, und nach wie vor ist offen, wie Hauptberuflichkeit und Ehrenamtlichkeit problemlos miteinander verzahnt werden könnte. An dieser Forschungslücke ansetzend werden in diesem Buch basierend auf einer Analyse des aktuellen Forschungsstandes die Effizienz- und Effektivitätskriterien der Mitarbeit im Verein betrachtet und deren Reflexionsdefizite aufgedeckt. Hierauf aufbauend wird auf der Grundlage der soziologischen Systemtheorie eine allgemeine Vereinstheorie entwickelt und Vertrauen als Schlüssel zum Vereinserfolg dechiffriert. }}, author = {{Meier, Heiko}}, isbn = {{9783639043488}}, pages = {{236}}, publisher = {{VDM}}, title = {{{Mitarbeit im Sport – eine reine Vertrauenssache}}}, year = {{2008}}, } @inbook{34999, author = {{Meier, Heiko and Thiel, Ansgar}}, booktitle = {{Sport in Deutschland - Bestandsaufnahme und Perspektiven}}, editor = {{Schweer, Martin K.W.}}, isbn = {{9783631564134}}, pages = {{129--146}}, publisher = {{Peter Lang}}, title = {{{Wie innovationsfähig ist der Sportverein? Eine Analyse am Beispiel der Einrich-tung hauptberuflicher Mitarbeiterstellen}}}, volume = {{1}}, year = {{2008}}, } @article{54950, abstract = {{The mechanisms by which proteases activate the epithelial sodium channel (ENaC) are not yet fully understood. We investigated the effect of extracellular proteases on rat ENaC heterologously expressed in Xenopus laevis oocytes. Application of trypsin increased ENaC whole-oocyte currents by about 8-fold without a concomitant increase in channel surface expression. The stimulatory effect of trypsin was preserved in oocytes expressing alphagamma-ENaC, but was abolished in oocytes expressing alphabeta-ENaC. Thus, the gamma-subunit appears to be essential for channel activation by extracellular proteases. Site-directed mutagenesis of a putative prostasin cleavage site in the extracellular loop of the gamma-subunit revealed that mutating the 181Lys residue to alanine (gammaK181A) increases ENaC baseline whole-oocyte currents, decreases channel surface expression, and largely reduces the stimulatory effect of extracellular proteases (trypsin, chymotrypsin and human neutrophil elastase). In single-channel recordings from outside-out patches we demonstrated that the gammaK181A mutation essentially abolishes the activation of near-silent channels by trypsin, while a stimulatory effect of trypsin on channel gating is preserved. This apparent dual effect of trypsin on channel gating and on the recruitment of near-silent channels was confirmed by experiments using the beta518C mutant ENaC which can be converted to a channel with an open probability of nearly one by exposure to a sulfhydryl reagent. Interestingly, the gammaK181A mutation results in the spontaneous appearance of a 67 kDa fragment of the gamma-subunit in the plasma membrane which can be prevented by a furin inhibitor and also occurs after channel activation by extracellular trypsin. This suggests that the mutation promotes channel cleavage and activation by endogenous proteases. This would lower the pool of near-silent channels and explain the constitutive activation and reduced responsiveness of the mutant channel to extracellular proteases. We conclude that the mutated site (K181A) affects a region in the gamma-subunit of ENaC that is functionally important for the activation of near-silent channels by extracellular proteases.}}, author = {{Diakov, Alexei and Bera, Katarzyna and Mokrushina, Marianna and Krueger, Bettina and Korbmacher, Christoph}}, journal = {{The Journal of Physiology}}, number = {{19}}, pages = {{4587–4608}}, publisher = {{Wiley}}, title = {{{Cleavage in the γ-subunit of the epithelial sodium channel (ENaC) plays an important role in the proteolytic activation of near-silent channels}}}, doi = {{10.1113/jphysiol.2008.154435}}, volume = {{586}}, year = {{2008}}, } @inbook{28960, author = {{Grimminger-Seidensticker, Elke}}, booktitle = {{Sport - Integration - Europe. Widening Horizons in Intercultural Education}}, editor = {{Gieß-Stüber, P. and Blecking, D.}}, pages = {{304--315}}, publisher = {{Schneider}}, title = {{{Promoting intercultural competence in the continuing education of physical education teachers}}}, year = {{2008}}, } @inbook{28961, author = {{Grimminger-Seidensticker, Elke}}, booktitle = {{Sport - Integration - Europa. Neue Horizonte für interkulturelle Bildung}}, editor = {{Gieß-Stüber, P. and Blecking, D.}}, pages = {{313--324}}, publisher = {{Schneider}}, title = {{{Die Förderung interkultureller Kompetenz in der Sportlehrerfortbildung}}}, year = {{2008}}, } @inbook{28965, author = {{Grimminger-Seidensticker, Elke and Gieß-Stüber, P.}}, booktitle = {{Sport - Integration - Europe. Widening Horizons in Intercultural Education}}, editor = {{Gieß-Stüber, P. and Blecking, D.}}, pages = {{297--303}}, publisher = {{Schneider}}, title = {{{Reflexive interculturality as a development objective for schools and school sport}}}, year = {{2008}}, } @inbook{28966, author = {{Grimminger-Seidensticker, Elke and Gieß-Stüber, P.}}, booktitle = {{Sport - Integration - Europa. Neue Horizonte für interkulturelle Bildung}}, editor = {{Gieß-Stüber, P. and Blecking, D.}}, pages = {{305--312}}, publisher = {{Schneider}}, title = {{{Reflexive Interkulturalität als Schul(sport)entwicklungsperspektive}}}, year = {{2008}}, } @inbook{28962, author = {{Grimminger-Seidensticker, Elke}}, booktitle = {{Sport - Integration - Europe. Widening Horizons in Intercultural Education}}, editor = {{Gieß-Stüber, P. and Blecking, D.}}, pages = {{19--24}}, publisher = {{Schneider}}, title = {{{Study structures for physical education teachers in comparison}}}, year = {{2008}}, } @inbook{28963, author = {{Grimminger-Seidensticker, Elke}}, booktitle = {{Sport - Integration - Europa. Neue Horizonte für interkulturelle Bildung}}, editor = {{Gieß-Stüber, P. and Blecking, D.}}, pages = {{15--20}}, publisher = {{Schneider}}, title = {{{(Sport-)Lehrerbildung im europäischen Vergleich}}}, year = {{2008}}, } @inbook{28923, author = {{Grimminger-Seidensticker, Elke and Gieß-Stüber, P.}}, booktitle = {{Handbuch Sportdidaktik}}, editor = {{Lange, H. and Sinning, S.}}, pages = {{223--244}}, publisher = {{Splitta}}, title = {{{Kultur und Fremdheit als sportdidaktische Perspektive}}}, year = {{2008}}, } @book{28973, editor = {{Grimminger-Seidensticker, Elke}}, publisher = {{Schneider}}, title = {{{Sport - Integration - Europa. Bibliographie}}}, year = {{2008}}, }