@article{StuhrmannHuberKaes2011, author = {Stuhrmann, Bj{\"o}rn and Huber, Florian and K{\"a}s, Josef}, title = {Robust organizational principles of protrusive biopolymer networks in migrating living cells}, series = {Plos One}, volume = {6}, journal = {Plos One}, number = {1}, publisher = {Public Library of Science (PLoS)}, issn = {1932-6203}, doi = {10.1371/journal.pone.0014471}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-34901}, year = {2011}, abstract = {Cell migration is associated with the dynamic protrusion of a thin actin-based cytoskeletal extension at the cell front, which has been shown to consist of two different substructures, the leading lamellipodium and the subsequent lamellum. While the formation of the lamellipodium is increasingly well understood, organizational principles underlying the emergence of the lamellum are just beginning to be unraveled. We report here on a 1D mathematical model which describes the reaction-diffusion processes of a polarized actin network in steady state, and reproduces essential characteristics of the lamellipodium-lamellum system. We observe a steep gradient in filament lengths at the protruding edge, a local depolymerization maximum a few microns behind the edge, as well as a differential dominance of the network destabilizer ADF/cofilin and the stabilizer tropomyosin. We identify simple and robust organizational principles giving rise to the derived network characteristics, uncoupled from the specifics of any molecular implementation, and thus plausibly valid across cell types. An analysis of network length dependence on physico-chemical system parameters implies that to limit array treadmilling to cellular dimensions, network growth has to be truncated by mechanisms other than aging-induced depolymerization, e.g., by myosin-associated network dissociation at the transition to the cell body. Our work contributes to the analytical understanding of the cytoskeletal extension's bisection into lamellipodium and lamellum and sheds light on how cells organize their molecular machinery to achieve motility.}, language = {en} } @article{JohanningBraunEiteneueretal.2011, author = {Johanning, M. and Braun, Alexander and Eiteneuer, D. and Paape, C. and Balzer, C. and Neuhauser, W. and Wunderlich, C.}, title = {Resonance-enhanced isotope-selective photoionization of YbI for ion trap loading}, series = {Applied Physics B}, volume = {103}, journal = {Applied Physics B}, number = {2}, publisher = {Springer Nature}, issn = {1432-0649}, doi = {10.1007/s00340-011-4502-7}, pages = {327 -- 338}, year = {2011}, language = {en} } @misc{OPUS4-2236, title = {Public Service Broadcasting: A German-Ukrainian Exchange of Opinions}, volume = {K{\"o}lner Schriften zur Medien{\"o}konomie}, editor = {Khabyuk, Olexiy and Kops, Manfred}, publisher = {Lit-Verlag}, address = {Berlin}, isbn = {978-3-643-80094-7}, year = {2011}, language = {de} } @incollection{SteffensKueppersSkoda2011, author = {Steffens, Jochen and K{\"u}ppers, Thomas and Skoda, Sabrina}, title = {Psychologische Einflussfaktoren bei der Beurteilung des Innenger{\"a}usches von Elektrofahrzeugen}, series = {5. DEGA-Symposium "E-Mobilit{\"a}t \& Akustik": 21. Oktober 2011, Stuttgart}, booktitle = {5. DEGA-Symposium "E-Mobilit{\"a}t \& Akustik": 21. Oktober 2011, Stuttgart}, address = {Stuttgart}, organization = {Deutsche Gesellschaft f{\"u}r Akustik e.V.}, year = {2011}, language = {de} } @article{SteffensKueppersSkoda2011, author = {Steffens, Jochen and K{\"u}ppers, Thomas and Skoda, Sabrina}, title = {Psychological factors influencing the evaluation of electric vehicle interior noise}, series = {Journal of the Acoustical Society of America}, volume = {130}, journal = {Journal of the Acoustical Society of America}, number = {4}, publisher = {AIP}, doi = {10.1121/1.3655176}, pages = {2546}, year = {2011}, abstract = {Increasing global awareness of the benefits of electromobility has brought about the need for new concepts in terms of the acoustic design of future vehicle generations. This includes both the creative design process and the development of suitable methods for the evaluation of target sounds by trial participants. The main difference between e-car sound surveys and those carried out on familiar sound categories is the potential consumer's lack of experience with electric vehicles. Thus the consumer has no, or very unspecific, expectations in this regard. Several studies have consequently shown that many subjects have to construct their personal frame of reference for evaluation within the listening experiment. However, this is possibly at odds with experience-based expectations relating to the sounds of conventional combustion engines. The result is a conflict of objectives between the traditional and the modern, familiarity and strangeness and not least between driving freedom and ecological awareness. In this context, the authenticity of the sound and the subjective interpretability of the sound information also appear as moderator variables. Moreover, associations with other vehicle categories, for example streetcars, also influence the perceived sound quality. In the course of this contribution, these factors will be expounded and their influence on the evaluation of interior noise discussed.}, language = {en} } @incollection{Khabyuk2011, author = {Khabyuk, Olexiy}, title = {Protecting Public Service Broadcasting from State Intervention}, series = {Public Service Broadcasting: A German-Ukrainian Exchange of Opinions}, booktitle = {Public Service Broadcasting: A German-Ukrainian Exchange of Opinions}, editor = {Khabyuk, Olexiy}, publisher = {Lit-Verlag}, address = {Berlin}, isbn = {978-3-643-80094-7}, pages = {67 -- 74}, year = {2011}, language = {en} } @incollection{MusallVoss2011, author = {Musall, Eike and Voss, Karsten}, title = {Projekte und ihre Merkmale im {\"U}berblich - Teil 2}, series = {Nullenergiegeb{\"a}ude}, booktitle = {Nullenergiegeb{\"a}ude}, editor = {Voss, Karsten and Musall, Eike}, publisher = {Detail, Institut f{\"u}r internationale Architektur-Dokumentation}, address = {M{\"u}nchen}, isbn = {978-3-920034-50-8}, pages = {114 -- 119}, year = {2011}, language = {de} } @incollection{MusallVoss2011, author = {Musall, Eike and Voss, Karsten}, title = {Projekte und ihre Merkmale im {\"U}berblich - Teil 1}, series = {Nullenergiegeb{\"a}ude}, booktitle = {Nullenergiegeb{\"a}ude}, editor = {Voss, Karsten and Musall, Eike}, publisher = {Detail, Institut f{\"u}r internationale Architektur-Dokumentation}, address = {M{\"u}nchen}, isbn = {978-3-920034-50-8}, pages = {50 -- 55}, year = {2011}, language = {de} } @incollection{MusallVoss2011, author = {Musall, Eike and Voss, Karsten}, title = {Plusenergiesiedlung: Freiburg, D 2006}, series = {Nullenergiegeb{\"a}ude}, booktitle = {Nullenergiegeb{\"a}ude}, editor = {Voss, Karsten and Musall, Eike}, publisher = {Detail, Institut f{\"u}r internationale Architektur-Dokumentation}, address = {M{\"u}nchen}, isbn = {978-3-920034-50-8}, pages = {94 -- 99}, year = {2011}, language = {de} } @incollection{ZimmermannCelikIwanskietal.2011, author = {Zimmermann, Peter and {\c{C}}elik, Fatma and Iwanski, Alexandra and Mohr, C. and Neumann, Anna}, title = {Pers{\"o}nlichkeitsunterschiede und ihre Auswirkungen im schulischen Kontext}, series = {Verschiedenheit als Diskurs}, booktitle = {Verschiedenheit als Diskurs}, editor = {Renate, Walthes and Renate, Hinz}, publisher = {Narr Francke Attempto}, address = {T{\"u}bingen}, isbn = {978-3-7720-8401-0}, pages = {151 -- 162}, year = {2011}, language = {de} } @inproceedings{BeckersSchmidtKuesteretal.2011, author = {Beckers, Kristian and Schmidt, Holger and K{\"u}ster, Jan-Christoph and Faßbender, Stephan}, title = {Pattern-Based Support for Context Establishment and Asset Identification of the ISO 27000 in the Field of Cloud Computing}, series = {2011 Sixth International Conference on Availability, Reliability and Security}, booktitle = {2011 Sixth International Conference on Availability, Reliability and Security}, publisher = {IEEE}, address = {Vienna}, isbn = {978-1-4577-0979-1}, doi = {10.1109/ARES.2011.55}, pages = {327 -- 333}, year = {2011}, abstract = {The ISO 27000 is a well-established series of information security standards. The scope for applying these standards can be an organisation as a whole, single business processes or even an IT application or IT infrastructure. The context establishment and the asset identification are among the first steps to be performed. The quality of the results produced when performing these steps has a crucial influence on the subsequent steps such as identifying loss, vulnerabilities, possible attacks and defining countermeasures. Thus, a context analysis to gather all necessary information in the initial steps is important, but is not offered in the standard. In this paper, we focus on the scope of cloud computing systems and present a way to support the context establishment and the asset identification described in ISO 27005. A cloud system analysis pattern and different kinds of stakeholder templates serve to understand and describe a given cloud development problem, i.e. the envisaged IT systems and the relevant parts of the operational environment. We illustrate our support using an online banking cloud scenario.}, language = {en} } @inproceedings{GroteKastsianMoennigmann2011, author = {Grote, Wolfgang and Kastsian, Darya and M{\"o}nnigmann, Martin}, title = {Optimal power system unit commitment with guaranteed local stability}, series = {Proceedings of the 2011 American Control Conference}, booktitle = {Proceedings of the 2011 American Control Conference}, publisher = {IEEE}, issn = {2378-5861}, doi = {10.1109/ACC.2011.5991058}, pages = {4526 -- 4531}, year = {2011}, abstract = {This article deals with the cost optimal commitment of power systems. System stability is often only considered after solving the commitment problem. We show by example that a cost optimization may result in a mode of operation that, while economically optimal, is unstable or has otherwise unacceptable dynamics. As a remedy, we propose to use the so-called normal vector method, which has been developed for the optimization of nonlinear dynamical systems with stability boundaries and uncertain parameters. We apply the method to a small sample power grid, where the optimization goal is to minimize the energy production costs for a given power consumption.}, language = {en} } @book{OPUS4-1998, title = {Nullenergiegeb{\"a}ude: Internationale Projekte zum klimaneutralen Wohnen und Arbeiten}, editor = {Voss, Karsten and Musall, Eike}, publisher = {Detail, Institut f{\"u}r internationale Architektur-Dokumentation}, address = {M{\"u}nchen}, isbn = {978-3-920034-50-8}, year = {2011}, language = {de} } @inproceedings{Musall2011, author = {Musall, Eike}, title = {Null-/Plusenergiegeb{\"a}ude - Erfahrungen und Perspektiven zu klimaneutralen Geb{\"a}uden in Deutschland}, series = {1. Internationaler Plusenergie-Kongress, Bern}, booktitle = {1. Internationaler Plusenergie-Kongress, Bern}, address = {Bern}, year = {2011}, language = {en} } @article{VossMusall2011, author = {Voss, Karsten and Musall, Eike}, title = {Null- und Plusenergiegeb{\"a}ude: Allgemeine Bilanzierungsverfahren und Schnittstellen zur normativen Praxis in Deutschland}, series = {EnEVaktuell}, journal = {EnEVaktuell}, number = {IV}, publisher = {DIN Deutsches Institut f{\"u}r Normung e.V.}, pages = {3 -- 5}, year = {2011}, abstract = {Die Begriffe „Nullenergiehaus" oder „Plusenergiehaus" sind in den letzten Jahren national und international zum Inbegriff f{\"u}r die konsequente Zusammenf{\"u}hrung von Maßnahmen zur drastischen Energieeinsparung und optimierter, dezentraler Nutzung erneuerbarer Energien geworden. Dabei geht es nicht um energieautarke Geb{\"a}ude und die dabei große Herausforderung der saisonalen Energiespeicherung. Grundidee ist, dass die von einem Geb{\"a}ude in ein Netz eingespeiste Energiemenge in der Jahresbilanz mindestens dem Energiebezug entspricht. Sowohl im Kontext der Fortf{\"u}hrung der europ{\"a}ischen Geb{\"a}uderichtline als auch im aktuellen Energiekonzept und Energieforschungsprogramm der Bundesregierung wird das Thema besetzt.}, language = {de} } @article{YangKollmannsbergerDuesteretal.2011, author = {Yang, Zhengxiong and Kollmannsberger, Stefan and D{\"u}ster, Alexander and Ruess, Martin and Garcia, Eduardo Grande and Burgkart, Rainer and Rank, Ernst}, title = {Non-standard bone simulation: interactive numerical analysis by computational steering}, series = {Computing and Visualization in Science}, volume = {14}, journal = {Computing and Visualization in Science}, number = {5}, publisher = {Springer}, doi = {10.1007/s00791-012-0175-y}, pages = {207 -- 216}, year = {2011}, language = {en} } @misc{OPUS4-417, title = {Newsletter 1/2011}, address = {D{\"u}sseldorf}, organization = {Fachhochschule D{\"u}sseldorf}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-6683}, year = {2011}, abstract = {Inhalt: Neues It Konzept : Austausch des E-Mail Servers hat Priorit{\"a}t; Die Campus IT hilft; Microsoft Office Professional privat nutzen; IT Ziele der Fachhochschule D{\"u}sseldorf;}, language = {de} } @inproceedings{Musall2011, author = {Musall, Eike}, title = {Near zero energy home, Net zero energy house, Plus energy building-How is it understood and how is it implemented?}, series = {Danfoss Heating Solutions' Technology Management Event, Billund}, booktitle = {Danfoss Heating Solutions' Technology Management Event, Billund}, address = {Billund}, year = {2011}, language = {en} } @inproceedings{JuerjensOchoaSchmidtetal.2011, author = {J{\"u}rjens, Jan and Ochoa, Mart{\´i}n and Schmidt, Holger and Marchal, Lo{\"i}c and Houmb, Siv Hilde and Islam, Shareeful}, title = {Modelling Secure Systems Evolution: Abstract and Concrete Change Specifications}, series = {Formal Methods for Eternal Networked Software Systems: 11th International School on Formal Methods for the Design of Computer, Communication and Software Systems, SFM 2011, Bertinoro, Italy, June 13-18, 2011. Advanced Lectures}, volume = {LNCS, 6659}, booktitle = {Formal Methods for Eternal Networked Software Systems: 11th International School on Formal Methods for the Design of Computer, Communication and Software Systems, SFM 2011, Bertinoro, Italy, June 13-18, 2011. Advanced Lectures}, editor = {Bernardo, Marco and Issarny, Val{\´e}rie}, publisher = {Springer}, address = {Berlin, Heidelberg}, isbn = {978-3-642-21455-4}, doi = {10.1007/978-3-642-21455-4_15}, pages = {504 -- 526}, year = {2011}, abstract = {Developing security-critical systems is difficult, and there are many well-known examples of vulnerabilities exploited in practice. In fact, there has recently been a lot of work on methods, techniques, and tools to improve this situation already at the system specification and design. However, security-critical systems are increasingly long-living and undergo evolution throughout their lifetime. Therefore, a secure software development approach that supports maintaining the needed levels of security even through later software evolution is highly desirable. In this chapter, we recall the UMLsec approach to model-based security and discuss on tools and techniques to model and verify evolution of UMLsec models.}, language = {en} } @inproceedings{LinnemannEchternachtBreueretal.2011, author = {Linnemann, Christian and Echternacht, David and Breuer, Christopher and Moser, Albert}, title = {Modeling optimal redispatch for the European Transmission grid}, series = {2011 IEEE Trondheim PowerTech,19.06.2011 - 23.06.2011, Trondheim}, booktitle = {2011 IEEE Trondheim PowerTech,19.06.2011 - 23.06.2011, Trondheim}, publisher = {IEEE}, isbn = {978-1-4244-8418-8}, doi = {10.1109/PTC.2011.6019442}, pages = {1 -- 8}, year = {2011}, language = {en} }