@article{8636, author = {{Berstermann, T. and Auer, T. and Kurtze, H. and Schwab, M. and Yakovlev, D. R. and Bayer, M. and Wiersig, J. and Gies, C. and Jahnke, F. and Reuter, Dirk and Wieck, A. D.}}, issn = {{1098-0121}}, journal = {{Physical Review B}}, title = {{{Systematic study of carrier correlations in the electron-hole recombination dynamics of quantum dots}}}, doi = {{10.1103/physrevb.76.165318}}, year = {{2007}}, } @article{8637, author = {{Koop, E. J. and Lerescu, A. I. and Liu, J. and van Wees, B. J. and Reuter, Dirk and Wieck, A. D. and van der Wal, C. H.}}, issn = {{1557-1939}}, journal = {{Journal of Superconductivity and Novel Magnetism}}, pages = {{433--441}}, title = {{{The Influence of Device Geometry on Many-Body Effects in Quantum Point Contacts: Signatures of the 0.7 Anomaly, Exchange and Kondo}}}, doi = {{10.1007/s10948-007-0289-5}}, year = {{2007}}, } @article{8640, author = {{GÜRTLER, A. and ZEITLER, U. and MAAN, J. C. and Reuter, Dirk and WIECK, A. D.}}, issn = {{0217-9792}}, journal = {{International Journal of Modern Physics B}}, pages = {{1589--1593}}, title = {{{CYCLOTRON RESONANCE IN COUPLED BILAYERS IN HIGH MAGNETIC FIELDS}}}, doi = {{10.1142/s0217979207043257}}, year = {{2007}}, } @article{8642, author = {{Grbić, Boris and Leturcq, Renaud and Ihn, Thomas and Ensslin, Klaus and Reuter, Dirk and Wieck, Andreas D.}}, issn = {{0031-9007}}, journal = {{Physical Review Letters}}, title = {{{Aharonov-Bohm Oscillations in the Presence of Strong Spin-Orbit Interactions}}}, doi = {{10.1103/physrevlett.99.176803}}, year = {{2007}}, } @article{8643, author = {{Syperek, M. and Yakovlev, D. R. and Greilich, A. and Misiewicz, J. and Bayer, M. and Reuter, Dirk and Wieck, A. D.}}, issn = {{0031-9007}}, journal = {{Physical Review Letters}}, title = {{{Spin Coherence of Holes inGaAs/(Al,Ga)AsQuantum Wells}}}, doi = {{10.1103/physrevlett.99.187401}}, year = {{2007}}, } @article{8644, author = {{Deviatov, E. V and Kapustin, A. A and Dolgopolov, V. T and Lorke, A and Reuter, Dirk and Wieck, A. D}}, issn = {{0295-5075}}, journal = {{Europhysics Letters (EPL)}}, title = {{{Evidence for the Luttigger liquid density of states in transport across the incompressible stripe at fractional filling factors}}}, doi = {{10.1209/0295-5075/77/37002}}, year = {{2007}}, } @article{8645, author = {{Blokland, J. H. and Wijnen, F. J. P. and Christianen, P. C. M. and Zeitler, U. and Maan, J. C. and Kailuweit, P. and Reuter, Dirk and Wieck, A. D.}}, issn = {{1098-0121}}, journal = {{Physical Review B}}, title = {{{Hole levels in InAs self-assembled quantum dots}}}, doi = {{10.1103/physrevb.75.233305}}, year = {{2007}}, } @article{35353, author = {{Siebert, Hartmut and Quijada-Garrido, Isabel and Vermant, Jan and Noirez, Laurence and Burghardt, Wesley R. and Schmidt, Claudia}}, issn = {{1022-1352}}, journal = {{Macromolecular Chemistry and Physics}}, keywords = {{Materials Chemistry, Organic Chemistry, Polymers and Plastics, Physical and Theoretical Chemistry, Condensed Matter Physics}}, number = {{19–20}}, pages = {{2161--2172}}, publisher = {{Wiley}}, title = {{{Director Orientation of Nematic Side-Chain Liquid Crystalline Polymers Under Shear Flow: Comparison of a Flow-Aligning and a Non-Flow-Aligning Polysiloxane}}}, doi = {{10.1002/macp.200700248}}, volume = {{208}}, year = {{2007}}, } @article{51111, author = {{Braun, Sebastian and Kukuk, Marc}}, journal = {{Arbeitspapiere des Forschungszentrum für bürgerschaftliches Engagement}}, number = {{1}}, pages = {{1--40}}, title = {{{Corporate Cititzenship. Gesellschaftliches Engagement von Wirtschaftsunternehmen in Deutschland}}}, volume = {{1}}, year = {{2007}}, } @article{29680, author = {{Schmalhorst, J. and Thomas, A. and Kämmerer, S. and Schebaum, O. and Ebke, D. and Sacher, Marc and Reiss, G. and Hütten, A. and Turchanin, A. and Gölzhäuser, A. and Arenholz, E.}}, issn = {{1098-0121}}, journal = {{Physical Review B}}, keywords = {{Condensed Matter Physics, Electronic, Optical and Magnetic Materials}}, number = {{1}}, publisher = {{American Physical Society (APS)}}, title = {{{Transport properties of magnetic tunnel junctions withCo2MnSielectrodes: The influence of temperature-dependent interface magnetization and electronic band structure}}}, doi = {{10.1103/physrevb.75.014403}}, volume = {{75}}, year = {{2007}}, } @article{29679, author = {{Schmalhorst, Jan and Ebke, Daniel and Sacher, Marc and Liu, Ning-Ning and Thomas, Andy and Reiss, Gnter and Htten, Andreas and Arenholz, Elke}}, issn = {{0018-9464}}, journal = {{IEEE Transactions on Magnetics}}, keywords = {{Electrical and Electronic Engineering, Electronic, Optical and Magnetic Materials}}, number = {{6}}, pages = {{2806--2808}}, publisher = {{Institute of Electrical and Electronics Engineers (IEEE)}}, title = {{{Chemical and Magnetic Interface Properties of Tunnel Junctions With Co$_2$MnSi/Co$_2$FeSi Multilayer Electrode Showing Large Tunneling Magnetoresistance}}}, doi = {{10.1109/tmag.2007.893475}}, volume = {{43}}, year = {{2007}}, } @article{54935, abstract = {{Expression of connective tissue growth factor (CTGF) in endothelial cells is modulated by shear stress affecting the organization of the cytoskeleton. The molecular connection between alterations of actin and CTGF expression was investigated in human umbilical vein endothelial cells (HUVEC) and a microvascular endothelial cell line. Overexpression of nonpolymerizable monomeric actin R62D interfered with stress fiber formation in HUVEC and concomitantly reduced immunoreactive CTGF. In microvascular endothelial cells, flow-dependent upregulation of CTGF was prevented by this actin mutant. In contrast, overexpression of actin S14C strengthened filamentous actin and increased CTGF expression. These data indicated an inverse relationship between CTGF expression and monomeric actin. Coexpression of the mutant actins and different CTGF promoter constructs revealed an actin-sensitive site between 3 and 4.5 kb of the CTGF promoter. A CArG-like box at -3791 bp was responsible for actin-dependent CTGF induction as shown by mutagenesis. Overexpression of actin S14C activated the nonmutated promoter significantly more strongly than the mutated promoter. Actin polymerization is regulated by the small GTPase RhoA and activation of serum response factor (SRF). Overexpression of constitutively active RhoA or SRF significantly increased CTGF protein synthesis. The 4.5-kb promoter construct, but not the construct with a mutation in the CArG box, was activated by SRF or RhoA, providing evidence for a functional role of this site in CTGF induction. These findings provide novel evidence that monomeric actin is the connecting link between alterations in the cytoskeleton and CTGF gene expression and demonstrate the importance of SRF in regulating CTGF transcription.}}, author = {{Muehlich, Susanne and Cicha, Iwona and Garlichs, Christoph D. and Krueger, Bettina and Posern, Guido and Goppelt-Struebe, Margarete}}, journal = {{American Journal of Physiology-Cell Physiology}}, number = {{5}}, pages = {{C1732–C1738}}, publisher = {{American Physiological Society}}, title = {{{Actin-dependent regulation of connective tissue growth factor}}}, doi = {{10.1152/ajpcell.00552.2006}}, volume = {{292}}, year = {{2007}}, } @inproceedings{54946, abstract = {{The investigation and the development of self-organizing systems are especially needed for operation and control in massively distributed systems such as Sensor and Actor Networks (SANETs). The main issues addressed by self-organization techniques are scalability, network lifetime, and real-time support. In the literature, biological principles are often cited as inspirations for technical solutions, especially in the domain of self-organization. This concept already resulted in a good number of solutions with significant impact such as ant-based routing and immune system inspired network security solutions. In this paper, another specific biological field is investigated: cellular signaling cascades for event-specific reaction initiated by individual cells in collaboration with their direct neighbors. Information between cells are transmitted via proteins and result in the cascade of protein–protein or protein–DNA interactions to produce a specific cellular answer, e.g. the activation of cells or the transmission of mediators. These processes are programmed in every individual cell and lead to a coordinated reaction on a higher organization platform. We transferred these mechanisms to operation and control in SANETs. In particular, a rule-based processing scheme relying on the main concepts of cellular signaling cascades has been developed. It is relying on simple local rules and providing problem specific reaction such as local actuation control and data manipulation. We describe this Rule-based Sensor Network (RSN) technology and demonstrate comparative simulation results that show the feasibility of our approach.}}, author = {{Dressler, Falko and Dietrich, Isabel and German, Reinhard and Krueger, Bettina}}, booktitle = {{1st ACM/ICST International Conference on Autonomic Computing and Communication Systems (Autonomics 2007)}}, publisher = {{Association for Computing Machinery (ACM)}}, title = {{{Efficient Operation in Sensor and Actor Networks Inspired by Cellular Signaling Cascades}}}, doi = {{10.1145/1365562.1365572}}, year = {{2007}}, } @inproceedings{54947, abstract = {{In Wireless Sensor Networks (WSNs), address-based routing approaches often lead to severe problems due to node mobility, energy-saving sleep-cycles, and often missing or unreliable address information. Data-centric routing schemes such as flooding or gossiping solve these problems but may lead to congestion or starvation. Based on biologically inspired mechanisms known from cellular signaling pathways, we discovered potentials in enhancing the communication required for self-organization in network environments suffering from data paths with low reliability and time variations of the reliability. Using an importance factor for particular transmissions in combination with feedback loops, the overall quality of the global system can be increased. The resulting algorithm, Weighted Probabilistic Data Dissemination (WPDD), includes an inherent adaptation to changing network conditions. Congestion control is supported as well as prioritized data communication. This paper outlines the working behavior of WPDD and demonstrates its applicability based on selected simulation results.}}, author = {{Dressler, Falko and German, Reinhard and Krueger, Bettina}}, booktitle = {{IEEE Frontiers in the Convergence of Bioscience and Information Technologies (FBIT 2007)}}, pages = {{827–832}}, publisher = {{Institute of Electrical and Electronics Engineers (IEEE)}}, title = {{{Adaptive Data Dissemination in Sensor Networks using WPDD}}}, doi = {{10.1109/FBIT.2007.23}}, year = {{2007}}, } @inbook{28967, author = {{Grimminger-Seidensticker, Elke and Gieß-Stüber, P. and Schmerbitz, H. and Seidensticker, W.}}, booktitle = {{Standardisierung, Profilierung, Professionalisierung. Herausforderungen für den Schulsport}}, editor = {{Fessler, N. and Stibbe, G.}}, pages = {{143--159}}, publisher = {{Afra}}, title = {{{Reflexive Interkulturalität als Schul(sport)entwicklungs-perspektive - Skizze einer Schulfallstudie an der Laborschule Bielefeld}}}, year = {{2007}}, } @inbook{28969, author = {{Grimminger-Seidensticker, Elke and Gieß-Stüber, P.}}, booktitle = {{Beruf: Sportlehrer/in}}, editor = {{Miethling, W.-D. and Gieß-Stüber, P.}}, pages = {{110--133}}, publisher = {{Schneider}}, title = {{{Sportpädagogische Herausforderungen durch eine multikulturelle Schülerschaft – Ein Plädoyer für die Ausbildung interkultureller Kompetenz von Sportlehrkräften}}}, year = {{2007}}, } @article{22613, author = {{de los Arcos de Pedro, Maria Teresa and Oelhafen, Peter and Thommen, Verena and Mathys, Daniel}}, issn = {{1932-7447}}, journal = {{The Journal of Physical Chemistry C}}, pages = {{16392--16396}}, title = {{{The Influence of Catalyst's Oxidation Degree on Carbon Nanotube Growth as a Substrate-Independent Parameter}}}, doi = {{10.1021/jp074928q}}, year = {{2007}}, } @article{22612, author = {{de los Arcos de Pedro, Maria Teresa and Oelhafen, P and Mathys, D}}, issn = {{0957-4484}}, journal = {{Nanotechnology}}, title = {{{Optical characterization of alignment and effective refractive index in carbon nanotube films}}}, doi = {{10.1088/0957-4484/18/26/265706}}, year = {{2007}}, } @article{39765, author = {{Strauß, Jochen and Hoischen, Andreas and Kitzerow, Heinz-Siegfried}}, issn = {{1542-1406}}, journal = {{Molecular Crystals and Liquid Crystals}}, keywords = {{Condensed Matter Physics, General Materials Science, General Chemistry}}, number = {{1}}, pages = {{281/[2147]--291/[2157]}}, publisher = {{Informa UK Limited}}, title = {{{An Efficient Optical Method to Detect Phase Transitions in Liquid Crystals}}}, doi = {{10.1080/15421400590955703}}, volume = {{439}}, year = {{2007}}, } @article{39782, author = {{Kitzerow, Heinz-Siegfried}}, issn = {{1058-725X}}, journal = {{Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals}}, keywords = {{Condensed Matter Physics}}, number = {{1}}, pages = {{457--472}}, publisher = {{Informa UK Limited}}, title = {{{Dual-Frequency Addressable Gratings Based on Polymer-Dispersed Liquid Crystals}}}, doi = {{10.1080/10587259808025109}}, volume = {{321}}, year = {{2007}}, }