@article{25957, abstract = {{Poröse Funktionsmaterialien wie halbleitende Metalloxide, Kohlenstoff-Formen oder auch Silica werden aktuell von verschiedenen Wissenschaftsdisziplinen intensiv für Bereiche der Energiespeicherung, Sensorik, Katalyse und Stofftrennung erforscht. Im Beitrag werden schwerpunktmäßig geordnet-mesoporöse Silica-Materialien behandelt, die seit etwa 20 Jahren synthetisch zugänglich sind. Neben den Grundlagen der Herstellung über ein Templat-Verfahren werden im Beitrag auch drei Experimente vorgestellt, die im Chemieunterricht oder Schülerlabor durchgeführt werden können. Zudem wird gezeigt, dass sich verschiedene Aspekte aus dem Kompetenzbereich Fachwissen mit Hilfe des Themas „Mesoporöse Silica“ miteinander vernetzen lassen.}}, author = {{Wilke, Timm and Haffer, Stefanie and Tiemann, Michael and Waitz, Thomas}}, issn = {{0944-5846}}, journal = {{CHEMKON}}, pages = {{67--72}}, title = {{{Mesoporöse Silica - Moderne Funktionsmaterialien im Chemieunterricht}}}, doi = {{10.1002/ckon.201210170}}, year = {{2012}}, } @inbook{44767, author = {{Rinkens, H.-D. and Hilligus, A. and Herzig, Bardo}}, booktitle = {{40 Jahre Universität Paderborn}}, editor = {{Freese, P.}}, pages = {{282--290}}, publisher = {{Media Print}}, title = {{{PLAZ – Lehrerbildung in Paderborn}}}, year = {{2012}}, } @inproceedings{46877, author = {{Schack, Thomas and Güldenpenning, Iris and Koester, Dirk}}, booktitle = {{Abstracts of the 54. Conference of Experimental Psychologists (TeaP 2012)}}, editor = {{Bröder, A and Erdfelder, E. and Hilbig, B. and Meiser, T. and Pohl, R. and Stahlberg, D.}}, location = {{Mannheim}}, pages = {{330}}, publisher = {{Pabst Science Publishers}}, title = {{{Die Rolle motorischer Expertise bei der Wahrnehmung komplexer Handlungen}}}, doi = {{https://doi.org/10.23668/psycharchives.881}}, year = {{2012}}, } @inproceedings{46909, author = {{Güldenpenning, Iris and Spiegel, Marnie Ann and Schack, Thomas}}, booktitle = {{Abstracts of the 54. Conference of Experimental Psychologists (TeaP 2012)}}, editor = {{Bröder, A. and Erdfelder, E. and Hilbig, B. and Meiser, T. and Pohl, R. and Stahlberg, D.}}, location = {{Lengerich}}, pages = {{46}}, publisher = {{Pabst Science Publishers}}, title = {{{That’s how we roll - Learning the Kayak Roll improves the ability to mentally rotate objects}}}, doi = {{https://doi.org/10.23668/psycharchives.881}}, year = {{2012}}, } @inproceedings{47038, author = {{Koester, D. and Güldenpenning, Iris and Schack, T.}}, booktitle = {{48. Kongress der Deutschen Gesellschaft für Psychologie (DGPs)}}, editor = {{Riemann, R.}}, pages = {{169}}, publisher = {{Pabst Science Publishers}}, title = {{{Zur Funktion motorischer Expertise in der Bewegungswahrnehmung: Eine EEG-Studie}}}, year = {{2012}}, } @inbook{44076, author = {{Meydani, Elnaz and Bahonar, Marziyeh and Gholami, Bahareh and Raeesi Vanani, Iman and Sohrabi, Babak}}, booktitle = {{Advances in Business and Management. Volume 5}}, editor = {{D. Nelson, William}}, isbn = {{978-1-62100-563-6}}, title = {{{Data Mining and Decision Making}}}, year = {{2012}}, } @article{15872, author = {{Montgomery, Neil A. and Hedley, Gordon J. and Ruseckas, Arvydas and Denis, Jean-Christophe and Schumacher, Stefan and Kanibolotsky, Alexander L. and Skabara, Peter J. and Galbraith, Ian and Turnbull, Graham A. and Samuel, Ifor D. W.}}, issn = {{1463-9076}}, journal = {{Physical Chemistry Chemical Physics}}, title = {{{Dynamics of fluorescence depolarisation in star-shaped oligofluorene-truxene molecules}}}, doi = {{10.1039/c2cp24141b}}, year = {{2012}}, } @article{18542, abstract = {{We present recent advances in numerical implementations of hybrid functionals and the GW approximation within the full-potential linearized augmented-plane-wave (FLAPW) method. The former is an approximation for the exchange–correlation contribution to the total energy functional in density-functional theory, and the latter is an approximation for the electronic self-energy in the framework of many-body perturbation theory. All implementations employ the mixed product basis, which has evolved into a versatile basis for the products of wave functions, describing the incoming and outgoing states of an electron that is scattered by interacting with another electron. It can thus be used for representing the nonlocal potential in hybrid functionals as well as the screened interaction and related quantities in GW calculations. In particular, the six-dimensional space integrals of the Hamiltonian exchange matrix elements (and exchange self-energy) decompose into sums over vector–matrix–vector products, which can be evaluated easily. The correlation part of the GW self-energy, which contains a time or frequency dependence, is calculated on the imaginary frequency axis with a subsequent analytic continuation to the real axis or, alternatively, by a direct frequency convolution of the Green function G and the dynamically screened Coulomb interaction W along a contour integration path that avoids the poles of the Green function. Hybrid-functional and GW calculations are notoriously computationally expensive. We present a number of tricks that reduce the computational cost considerably, including the use of spatial and time-reversal symmetries, modifications of the mixed product basis with the aim to optimize it for the correlation self-energy and another modification that makes the Coulomb matrix sparse, analytic expansions of the interaction potentials around the point of divergence at k=0, and a nested density and density-matrix convergence scheme for hybrid-functional calculations. We show CPU timings for prototype semiconductors and illustrative results for GdN and ZnO. }}, author = {{Friedrich, Christoph and Betzinger, Markus and Schlipf, Martin and Blügel, Stefan and Schindlmayr, Arno}}, issn = {{1361-648X}}, journal = {{Journal of Physics: Condensed Matter}}, number = {{29}}, publisher = {{IOP Publishing}}, title = {{{Hybrid functionals and GW approximation in the FLAPW method}}}, doi = {{10.1088/0953-8984/24/29/293201}}, volume = {{24}}, year = {{2012}}, } @article{4104, abstract = {{We report on the molecular beam epitaxy growth of cubic GaN on 3C–SiC (001) nanostructures. Transmission electron microscopy (TEM) studies show phase-pure cubic GaN crystals with a low defect density on top of the post shaped 3C–SiC nanostructures and GaN grown on their sidewalls, which is dominated by {111} planar defects. The nanostructures, aligned parallel and perpendicular to the [110] directions of the substrate, are located in anti-phase domains of the 3C–SiC/Si (001) substrate. These anti-phase domains strongly influence the optimum growth of GaN layers in these regions. TEM measurements demonstrate a different stacking fault density in the cubic GaN epilayer in these areas.}}, author = {{Kemper, R.M. and Hiller, L. and Stauden, T. and Pezoldt, J. and Duschik, K. and Niendorf, T. and Maier, H.J. and Meertens, D. and Tillmann, K. and As, D.J. and Lindner, Jörg}}, issn = {{0022-0248}}, journal = {{Journal of Crystal Growth}}, location = {{Nara (Japan)}}, pages = {{291--294}}, publisher = {{Elsevier BV}}, title = {{{Growth of cubic GaN on 3C–SiC/Si (001) nanostructures}}}, doi = {{10.1016/j.jcrysgro.2012.10.011}}, volume = {{378}}, year = {{2012}}, } @book{57439, editor = {{Biehler, Rolf and Pratt, D.}}, title = {{{Probability in Reasoning About Data and Risk. ZDM The International Journal on Mathematics Edu-cation, 44(7) }}}, year = {{2012}}, } @inbook{57570, author = {{Biehler, Rolf and Hoppenbrock, Axel and Klemm, Juliane and Liebendörfer, Michael and Wassong, Thomas}}, booktitle = {{CETL-MSOR Conference Proceedings 2011}}, editor = {{Waller, D.}}, pages = {{21--27}}, publisher = {{The Maths, Stats & OR Network}}, title = {{{Training of student teaching assistants and e-learning via math-bridge–Two projects at the German Centre for Higher Mathematics Education}}}, year = {{2012}}, } @article{45163, author = {{Rapp, K. and Klenk, J. and Benzinger, P. and Franke, Sebastian and Denkinger, M. D. and Peter, R.}}, journal = {{Aging clinical and experimental research - first published: 06.02.2012}}, title = {{{(for the ActiFE Ulm Study Group). Physical performance and daily walking duration: associations in 1,271 women and men aged 65-95 years}}}, doi = {{10.3275/8264}}, year = {{2012}}, } @inproceedings{60458, abstract = {{Digital 3D models are key components in many industrial and scientific sectors. In numerous domains polygonmeshes have become a de facto standard for model representation. In practice meshes often have a number ofdefects and flaws that make them incompatible with quality requirements of specific applications. Hence, repairingsuch defects in order to achieve compatibility is a highly important task - in academic as well as industrial applications. In this tutorial we first systematically analyze typical application contexts together with their requirementsand issues, as well as the various types of defects that typically play a role. Subsequently, we considerexisting techniques to process, repair, and improve the structure, geometry, and topology of imperfect meshes,aiming at making them appropriate to case-by-case requirements. We present seminal works and key algorithms,discuss extensions and improvements, and analyze the respective advantages and disadvantages depending onthe application context. Furthermore, we outline directions where further research is particularly important orpromising.}}, author = {{Campen, Marcel and Attene, Marco and Kobbelt, Leif}}, booktitle = {{Eurographics 2012 Tutorials}}, title = {{{A Practical Guide to Polygon Mesh Repairing}}}, doi = {{10.2312/CONF/EG2012/TUTORIALS/T4}}, year = {{2012}}, } @article{52868, author = {{Grimme, Britta and Lipinski, John and Schöner, Gregor}}, journal = {{Experimental brain research}}, pages = {{185–200}}, publisher = {{Springer}}, title = {{{Naturalistic arm movements during obstacle avoidance in 3D and the identification of movement primitives}}}, volume = {{222}}, year = {{2012}}, } @inproceedings{19845, abstract = {{In dieser Arbeit stellen wir ein flexibles System zur Entwicklung und Evaluation von 3-D-Renderingalgorithmen vor, das die Visualisierung komplexer virtueller Szenen auf einem breiten Spektrum an Geräten erlaubt. Die Aufbereitung und Echtzeitdarstellung solcher virtueller Szenen, wie sie beispielsweise aus detaillierten CAD-Daten erzeugt werden, stellt in vielerlei Hinsicht eine algorithmische und technische Herausforderung dar. Die 3-D-Szenendaten können nach dem Dateiimport aus einem Austauschformat in eine Vielzahl unterschiedlicher Datenstrukturen überführt werden. Es muss ein geeignetes Renderingverfahren ausgewählt und eingestellt werden, welches sowohl die Eigenschaften der Szene (Zahl der Polygone, Grad der Verdeckung etc.) als auch die Fähigkeiten der Hardware berücksichtigt. Auf der einen Seite stellt die Darstellung auf mobilen Endgeräten wie Smartphones besonders hohe Anforderungen aufgrund der Speicherbeschränkung und der geringen Leistungsfähigkeit der Grafikhardware. Auf der anderen Seite stehen bei Großprojektionssystemen, wie beispielsweise dem HD-Visualisierungscenter des Heinz Nixdorf Instituts, die hohe Bildqualität bei stereoskopischer Darstellung und die Unterstützung von Trackingsystemen im Vordergrund. Der Fokus des von uns entwickelten Systems PADrend liegt in der Bereitstellung einer flexiblen und leicht erweiterbaren Grundlage für die Entwicklung und Evaluation von 3-D-Renderingalgorithmen und räumlichen Datenstrukturen im Bereich der Forschung und der universitären Ausbildung. Durch den modularen Aufbau und die große Bandbreite an unterstützten Systemen wird gewährleistet, dass eine Vielzahl unterschiedlicher Entwicklungen und Anwendungen auf PADrend aufsetzen können. In diesem Artikel geben wir einen Überblick über den Aufbau und die Fähigkeiten des Systems. Des Weiteren geben wir ein Beispiel für ein Anwendungsszenario, in dem PADrend eingesetzt wird: die Visualisierung von architektonischen Modellen auf einem Multiprojektionssystem.}}, author = {{Jähn, Claudius and Petring, Ralf and Eikel, Benjamin}}, booktitle = {{Augmented & Virtual Reality in der Produktentstehung}}, pages = {{159----170}}, publisher = {{Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn}}, title = {{{PADrend: Platform for Algorithm Development and Rendering}}}, volume = {{295}}, year = {{2011}}, } @inproceedings{19909, abstract = {{September 2011}}, author = {{Büker, Petra and Berning, Hanna}}, title = {{{Das Praxissemester in der Ausbildungsregion der Universität Paderborn. Vortrag im Rahmen des Symposions: Das neue Grundschullehramt in NRW an der 20. Jahrestagung der Kommission "Grundschulforschung und Pädagogik in der Primarstufe" der Deutschen Gesellschaft für Erziehungswissenschaft. Universität Paderborn}}}, year = {{2011}}, } @inproceedings{19910, abstract = {{September 2011}}, author = {{Büker, Petra and Hüpping, Birgit}}, title = {{{Sichtweisen, Handlungslogiken und Belastungserleben von Grundschullehrer/innen im Umgang mit kultureller Vielfalt: Forschungsbefunde aus der Paderborner Professionsstudie Pro-LEG. Vortrag an der 20. Jahrestagung der Kommission "Grundschulforschung und Pädagogik in der Primarstufe" der Deutschen Gesellschaft für Erziehungswissenschaft. Universität Paderborn}}}, year = {{2011}}, } @inproceedings{19911, abstract = {{September 2011}}, author = {{Büker, Petra and Bührmann, Thorsten and Kordulla, Agnes}}, title = {{{Schul- und Kindergartenentwicklung als neues interdisziplinäres Forschungsfeld: Methodologische Herausforderungen am Beispiel des Paderborner Modellprojektes "Kinderbildungshaus". Vortrag an der 20. Jahrestagung der Kommission "Grundschulforschung und Pädagogik der Primarstufe" der Deutschen Gesellschaft für Erziehungswissenschaften. Universität Paderborn}}}, year = {{2011}}, } @inproceedings{26660, abstract = {{During rescue scenarios it is indispensable to obtain an overview of the situation. Unmanned aerial vehicles (UAVs) can gather the necessary information in a fast and efficient way. This paper presents an approach for path planning in 3D environments offering a solution to explore disaster areas including, e.g., partially or completely destroyed buildings. Using multiple UAVs decreases the time needed to receive a complete overview if the problem of coordination and task allocation is solved. We present an approach for the use of multiple UAVs. The UAVs work in a distributed manner without any central coordination instance and cover the exploration of terrains as well as goal-oriented path planning. When using multiple UAVs redundant exploration is avoided through the use of inter-UAV-communication. The approach is based on potential fields and uses the simplicity of the gradient method to calculate paths for fast exploration of the terrain. }}, author = {{Rasche, Christoph and Stern, Claudius and Kleinjohann, Lisa and Kleinjohann, Bernd}}, booktitle = {{The 5th International Conference on Automation, Robotics and Applications (ICARA 2011)}}, title = {{{A Distributed Multi-UAV Path Planning Approach for 3D Environments}}}, year = {{2011}}, } @inproceedings{26699, abstract = {{In this paper, we introduce a test bed for demonstrating and investigating self-x properties, such as self-optimization and self-organization, within the scope of multi-robot societies under realistic conditions. By doing so, we shift the investigation and demonstration of biologically inspired mechanisms from the simulative point of view to a dynamic and more complex realistic environment. For this purpose, we developed a controlled real-world environment to overcome common problems such as self-localization. Furthermore, we elaborated a concept for a descriptive robotic real-world game. By means of this game, we provide an instrument, which is easily accessible for any kind of audience on the one hand, while it still leaves enough space for an extensive scientific investigation on the other hand.}}, author = {{Jungmann, Alexander and Lutterbeck, Jan and Werdehausen, Benjamin and Kleinjohann, Bernd}}, booktitle = {{Proceedings of the 9th IEEE International Conference on Industrial Informatics (INDIN)}}, publisher = {{IEEE}}, title = {{{A Test Bed for Investigating Self-X Properties in Multi-Robot Societies}}}, year = {{2011}}, }