@inproceedings{38397, author = {{El-Darawy, M. and Pfau, T. and Woerdehoff, C. and Koch, B. and Hoffmann, S. and Peveling, R. and Porrmann, M. and Noé, Reinhold}}, booktitle = {{2008 34TH EUROPEAN CONFERENCE ON OPTICAL COMMUNICATION (ECOC)}}, isbn = {{978-1-4244-2228-9}}, title = {{{Realtime 40 krad/s Polarization Tracking with 6 dB PDL in Digital Synchronous Polarization-Multiplexed QPSK Receiver}}}, year = {{2008}}, } @inbook{40424, author = {{Grotjahn, Rebecca}}, booktitle = {{Performativität und Performance. Geschlecht in Musik, Theater und MedienKunst}}, editor = {{Oster, Martina and Ernst, Waltraud and Gerards, Marion }}, isbn = {{978-3-8258-0660-6 }}, pages = {{299–309}}, publisher = {{LIT Verlag}}, title = {{{Eine ‚Stimme von fast männlicher Färbung – Zarah Leander und die nationalsozialistische Geschlechterordnung}}}, volume = {{8}}, year = {{2008}}, } @inbook{41741, author = {{Tumat, Antje}}, booktitle = {{Erich Wolfgang Korngold – Wunderkind der Moderne oder letzter Romantiker?}}, editor = {{Stollberg, Arne }}, isbn = {{978-3-88377-954-6}}, pages = {{261--286}}, publisher = {{edition text+kritik}}, title = {{{Zwischen Oper und Filmmusik: Erich Wolfgang Korngolds Musiken zu William Shakespeares „Viel Lärmen um Nichts“ und Hans Müllers „Der Vampir oder die Gejagten“}}}, year = {{2008}}, } @inproceedings{42416, author = {{Fuchs, Christian}}, booktitle = {{Qué es información? (What is information?) In Proceedings of the First International Meeting of Experts in Information Theories. An Interdisciplinary Approach (Primer Encuentro Internacional de Expertos Teorías de la Información. Un enfoque interdisciplinar)}}, editor = {{María Díaz Nafria, José and Salto Alemany, Francisco}}, isbn = {{978-84-9773-451-6}}, location = {{León, Spain}}, pages = {{247--316}}, publisher = {{Universidad de León}}, title = {{{Towards a Critical Theory of Information}}}, year = {{2008}}, } @article{25980, abstract = {{Mesoporous SBA-15 (space group p6mm), KIT-6 (Ia3d) and KIT-5 (Fm3m) silicas, exhibiting different 2-D and 3-D channel- or cage-like pore structure and pore dimensions have been used as supports for iron oxide nanoparticles. The iron modification of the silica was performed according to a frequently used impregnation technique from aqueous iron nitrate solution. The materials were characterized by nitrogen physisorption, X-ray diffraction, TEM–EDX, Moessbauer spectroscopy, and temperature-programmed reduction (TPR) and tested in the catalytic decomposition of methanol. It is established that the location and dispersion of iron oxide nanoparticles are affected by the pore topology of the support. The most homogeneously dispersed iron oxide nanoparticles are observed using silica host matrix exhibiting a 3-D channel-like structure and pore diameters about 7 nm, and the thus-obtained composites exhibit high catalytic activity and selectivity in methanol decomposition to CO and hydrogen. For all the samples, characterized with a low mesopore volume and small pore diameters/pore entrances, the formation of larger iron oxide particles, mainly located on the outer surface, is observed. Inhomogeneously dispersed iron oxide particles with a large fraction of isolated, strongly interacting with the support, iron species, and possessing low catalytic activity and usually high selectivity to methane, are found for the silicas with relatively larger pores/pore entrances.}}, author = {{Tsoncheva, Tanya and Rosenholm, Jessica and Linden, Mika and Kleitz, Freddy and Tiemann, Michael and Ivanova, Ljubomira and Dimitrov, Momtchil and Paneva, Daniela and Mitov, Ivan and Minchev, Christo}}, issn = {{1387-1811}}, journal = {{Microporous and Mesoporous Materials}}, pages = {{327--337}}, title = {{{Critical evaluation of the state of iron oxide nanoparticles on different mesoporous silicas prepared by an impregnation method}}}, doi = {{10.1016/j.micromeso.2007.10.005}}, year = {{2008}}, } @inbook{25983, abstract = {{Nanoporous semiconducting metal oxide materials (In2O3, WO3) with uniform pore systems, large specific surface areas (80 m2 g−1), and pore-wall crystallinity were prepared by structure replication, using KIT-6 silica as a template. The products show improved properties as gas sensors (for methane or butanone) as compared to non-porous samples. In addition, porous WO3 samples with comparable porosity (prepared by conventional ‘soft templating’, using pluronic P123), which are amorphous on the atomic length scale show poorer gas sensitivity, indicating that crystallinity is a crucial factor in the sensing process.}}, author = {{Waitz, Thomas and Wagner, Thorsten and Kohl, Claus-Dieter and Tiemann, Michael}}, booktitle = {{Zeolites and related materials: Trends, targets and challenges, Proceedings of the 4th International FEZA Conference}}, issn = {{0167-2991}}, title = {{{New mesoporous metal oxides as gas sensors}}}, doi = {{10.1016/s0167-2991(08)80227-3}}, year = {{2008}}, } @inbook{25984, abstract = {{Mesoporous ceria was synthesized by using both CMK-3 carbon and SBA-15 silica as structure matrices. All products exhibit uniform mesopores with diameters of 5-6 nm in a two-dimensional periodic arrangement in addition to varying amounts of interparticle porosity. The gas sensing properties (methane detection) of ordered mesoporous ceria was compared to a non-porous sample.}}, author = {{ROGGENBUCK, JAN and Tiemann, Michael}}, booktitle = {{Nanoporous Materials}}, title = {{{Mesoporous Ceria by Structure Replication from Various Porous Matrices}}}, doi = {{10.1142/9789812779168_0019}}, year = {{2008}}, } @inbook{43729, author = {{Schroeter-Wittke, Harald}}, booktitle = {{Tanz und Religion. Theologische Perspektiven}}, editor = {{Keuchen, Marion and Lenz, Matthias and Leutzsch, Martin and Schroeter-Wittke, Harald}}, pages = {{9--28}}, title = {{{ "Das Reich Gottes lässt sich nicht ertanzen" (Heinz Zahrnt). 6 Auftakte zum Verhältnis von Tanz und Religion}}}, year = {{2008}}, } @inbook{23485, abstract = {{The ultrafast dynamics of optical excitations in semiconductors and semiconductor nanostructures can be computed on a microscopic theoretical basis using the semiconductor Bloch equations. This set of equations allows one to nonperturbatively evaluate light-field-induced intraband and interband excitations and is also well suited for the analysis of many-body effects such as excitonic resonances and carrier-carrier and carrier-phonon scattering processes. In this article we start with a description of an experimental observation of coherent spin photocurrents, then we briefly introduce the theoretical approach and review some results of our theory concerning the microscopic description of the ultrafast coherent optical generation and the temporal decay of charge and spin currents in semiconductor nanostructures. The computed transients show an enhanced damping of the spin current relative to the charge current as a consequence of Coulomb scattering between carriers with opposite spin. The influence of quantum kinetic memory effects on the dynamics of the photocurrents is analyzed by evaluating the scattering terms beyond the Markov approximation.}}, author = {{Meier, Torsten and Duc, Huynh Thanh and Vu, Quang Tuyen and Pasenow, Bernhard and Hübner, Jens and Chatteryee, Sangam and Rühle, Wolfgang W. and Haug, Hartmut and Koch, Stephan W.}}, booktitle = {{Advances in Solid State Physics}}, isbn = {{978-3-540-38234-8}}, pages = {{199--210}}, publisher = {{Springer}}, title = {{{Ultrafast Dynamics of Optically-Induced Charge and Spin Currents in Semiconductors}}}, doi = {{10.1007/978-3-540-38235-5_15}}, year = {{2008}}, } @inbook{24979, abstract = {{The ultrafast dynamics of optical excitations in semiconductors and semiconductor nanostructures can be computed on a microscopic theoretical basis using the semiconductor Bloch equations. This set of equations allows one to nonperturbatively evaluate light-field-induced intraband and interband excitations and is also well suited for the analysis of many-body effects such as excitonic resonances and carrier-carrier and carrier-phonon scattering processes. In this article we start with a description of an experimental observation of coherent spin photocurrents, then we briefly introduce the theoretical approach and review some results of our theory concerning the microscopic description of the ultrafast coherent optical generation and the temporal decay of charge and spin currents in semiconductor nanostructures. The computed transients show an enhanced damping of the spin current relative to the charge current as a consequence of Coulomb scattering between carriers with opposite spin. The influence of quantum kinetic memory effects on the dynamics of the photocurrents is analyzed by evaluating the scattering terms beyond the Markov approximation.}}, author = {{Meier, Torsten and Duc, Huynh Thanh and Vu, Quang Tuyen and Pasenow, Bernhard and Hübner, Jens and Chatteryee, Sangam and Rühle, Wolfgang W. and Haug, Hartmut and Koch, Stephan W.}}, booktitle = {{Advances in Solid State Physics}}, isbn = {{978-3-540-38234-8}}, pages = {{199--210}}, publisher = {{Springer}}, title = {{{Ultrafast Dynamics of Optically-Induced Charge and Spin Currents in Semiconductors}}}, doi = {{10.1007/978-3-540-38235-5_15}}, year = {{2008}}, } @inbook{34945, author = {{Süßmann, Johannes}}, booktitle = {{Geistliche Fürsten und Geistliche Staaten in der Spätphase des Alten Reiches}}, editor = {{Braun, Bettina and Menne, Mareike and Ströhmer, Michael}}, isbn = {{978-3-928471-72-5}}, pages = {{223–237}}, publisher = {{bibliotheca academica}}, title = {{{Bauen als Politik. Zum Versuch des Fürstbischofs Johann Philipp Franz von Schönborn, das Hochstift Würzburg in ein Gemeinwesen zu verwandeln}}}, year = {{2008}}, } @inbook{57793, author = {{Bernard, Christiane and Langer, Antje}}, booktitle = {{Drogenmärkte. Strukturen und Szenen des Kleinhandels.}}, editor = {{Werse, Bernd}}, isbn = {{ISBN 9783593386355}}, pages = {{299--327}}, publisher = {{Campus}}, title = {{{Zug um Zug. Drogenhandel und Prostitution als Finanzierungspraktiken von Crackkonsumentinnen}}}, year = {{2008}}, } @inproceedings{64524, author = {{Friedrich, Claus-Stefan and Gerhardt, Nils Christopher and Hofmann, Martin and Schmitz, Georg and Mienkina, Martin P. and Eder, Annika}}, booktitle = {{4th European Conference of the International Federation for Medical and Biological Engineering}}, pages = {{444 -- 447}}, title = {{{Evaluation of simplex codes for photoacoustic coded excitation}}}, doi = {{10.1007/978-3-540-89208-3_105}}, volume = {{1}}, year = {{2008}}, } @book{17566, author = {{Meyer auf der Heide, Friedhelm}}, isbn = {{ISBN 978-3-939350-41-5}}, publisher = {{Fakultät für Elektrotechnik, Informatik und Mathematik, Universität Paderborn}}, title = {{{The European Integrated Project "Dynamically Evolving, Large Scale Information Systems (DELIS)"}}}, volume = {{222}}, year = {{2008}}, } @inproceedings{25395, author = {{Ngonga Ngomo, Axel-Cyrille and Schumacher, Frank}}, booktitle = {{Human Interface and the Management of Information. Methods, Techniques and Tools in Information Design, Symposium on Human Interface 2007, Held as Part of {HCI} International 2007, Beijing, China, July 22-27, 2007, Proceedings Part {I}}}, editor = {{J. Smith, Michael and Salvendy, Gavriel}}, pages = {{507--516}}, publisher = {{Springer}}, title = {{{Involving the User in Semantic Search}}}, doi = {{10.1007/978-3-540-73345-4\_58}}, volume = {{4557}}, year = {{2007}}, } @inproceedings{2020, author = {{Onus, Melih and W. Richa, Andrea and Scheideler, Christian}}, booktitle = {{Proceedings of the Nine Workshop on Algorithm Engineering and Experiments, ALENEX 2007, New Orleans, Louisiana, USA, January 6, 2007}}, isbn = {{978-1-61197-287-0}}, title = {{{Linearization: Locally Self-Stabilizing Sorting in Graphs}}}, doi = {{10.1137/1.9781611972870.10}}, year = {{2007}}, } @inproceedings{2024, author = {{Awerbuch, Baruch and Scheideler, Christian}}, booktitle = {{Distributed Computing, 21st International Symposium, DISC 2007, Lemesos, Cyprus, September 24-26, 2007, Proceedings}}, isbn = {{978-3-540-75141-0}}, pages = {{33----47}}, publisher = {{Springer}}, title = {{{A Denial-of-Service Resistant DHT}}}, doi = {{10.1007/978-3-540-75142-7_6}}, volume = {{4731}}, year = {{2007}}, } @proceedings{2025, editor = {{Aspnes, James and Scheideler, Christian and Arora, Anish and Madden, Samuel}}, isbn = {{978-3-540-73089-7}}, title = {{{Distributed Computing in Sensor Systems, Third IEEE International Conference, DCOSS 2007, Santa Fe, NM, USA, June 18-20, 2007, Proceedings}}}, doi = {{10.1007/978-3-540-73090-3}}, volume = {{4549}}, year = {{2007}}, } @inproceedings{24276, abstract = {{We define a natural generalization of the prominent k-server problem, the k-resource problem. It occurs in metric spaces with some demands and resources given at its points. The demands may vary with time, but the total demand may never exceed k. The goal of an online algorithm is to satisfy demands by moving resources, while minimizing the cost for transporting resources. We give an asymptotically optimal O(log(min {n,k}))-competitive randomized algorithm and an O(min {k,n})-competitive deterministic one for the k-resource problem on uniform metric spaces consisting of n points. This extends known results for paging to the more general setting of k-resource. Basing on the results for uniform metric spaces, we develop a randomized algorithm solving the k-resource and the k-server problem on metric spaces which can be decomposed into components far away from each other. The algorithm achieves a competitive ratio of O(log(min {n,k})), provided that it has some extra resources more than the optimal algorithm. }}, author = {{Bienkowski, Marcin and Kutyłowski, Jarosław}}, booktitle = {{Lecture Notes in Computer Science}}, issn = {{0302-9743}}, title = {{{The k-Resource Problem on Uniform and on Uniformly Decomposable Metric Spaces}}}, doi = {{10.1007/978-3-540-73951-7_30}}, year = {{2007}}, } @book{24366, abstract = {{Dieses Buch beschäftigt sich mit Algorithmen und Methoden der Peer-to-Peer-Netzwerke und gibt einen Einblick in die aktuelle Forschung. Ursprünglich waren Peer-to-Peer-Netzwerke nur für File-Sharing konzipiert. Mittlerweile hat sich Peer-to-Peer zum Paradigma für Rechnernetzwerke entwickelt. Ziel dieses Buches ist es, dem Leser ein grundlegendes Verständnis der Techniken hinter den aktuellen Peer-to-Peer-Netzwerken aufzuzeigen und im nächsten Schritt Algorithmen vorzustellen, die vielleicht erst in einigen Jahren umgesetzt werden. Das Buch richtet sich in erster Linie an Informatiker (Studenten ab dem 5. Semester). Aber auch interessierte Nichtinformatiker können von diesem Buch profitieren, wobei grundlegende Kenntnisse aus den Bereichen der Mathematik und Informatik vorausgesetzt werden. Die Ziele, Kernaussagen und Ergebnisse sollten jedoch auch ohne akademischen Hintergrund klar werden.}}, author = {{Mahlmann, Peter and Schindelhauer, Christian}}, isbn = {{9783540339915}}, publisher = {{Springer}}, title = {{{Peer-to-Peer-Netzwerke}}}, doi = {{10.1007/978-3-540-33992-2}}, year = {{2007}}, }