@inproceedings{26701, abstract = {{Machines are omnipresent. They produce, they transport. Machines facilitate work and assist. The increasing penetration of mechanical engineering by information technology enables considerable benefits. We refer to such systems as advanced mechatronic systems, which relay on the close interaction of mechanics, electric/electronics, control engineering and software engineering. Hence, the design and production of such systems is an interdisciplinary and complex task. Our ambition is a new school for the design of advanced mechatronic systems. Consequently, we need an avant-garde basic system which can be used to develop and to test future applications. The miniature robot BeBot is such a basic system. This robot constitutes the test bench for the applications, being based on modern approaches, such as self-optimization, self-organization and self-coordination as well as on the use of new manufacturing technologies. }}, author = {{Gausemeier, Jürgen and Schierbaum, Thomas and Dumitrescu, Roman and Herbrechtsmeier, Stefan and Jungmann, Alexander}}, booktitle = {{Proceedings of the 9th IEEE International Conference on Industrial Informatics (INDIN)}}, publisher = {{IEEE}}, title = {{{Miniature Robot BeBot: Mechatronic Test Platform for Self-X Properties}}}, year = {{2011}}, } @inproceedings{26702, author = {{Thuy, Andreas}}, booktitle = {{Reconfigurable Communication-centric Systems-on-Chip (ReCoSoC), 2011 6th International Workshop on }}, publisher = {{IEEE Xplore}}, title = {{{ Comparison of periodic and aperiodic task models for cyber-physical-systems}}}, year = {{2011}}, } @article{26705, abstract = {{In the area of dynamic verification of virtual prototypes, functional coverage is a valuable tool for answering the "Are we done?" question and achieving verification closure. Recent verification methodologies such as OVM and UVM contain multi-language support that provides a basic SystemC version. However, due to language shortcoming they cannot be utilized for the same amount of verification tasks in the SystemC ecosystem as in other supported hardware design and verification languages. In this presentation, we propose to boost the verification capabilities of SystemC by implementing functional coverage collection and evaluation according to the same metric as defined in the widely accepted IEEE-1800 SystemVerilog cover group feature. We implement a functional coverage library to enable coverage-driven verification of SystemC designs on multiple levels of abstraction enabling value, transition, and expression coverage. To our knowledge, the overall functionalities are not available in the IEEE-1666 SystemC standard or the SCV add-on library, nor are they complete compared to the aforementioned in any publicly available SystemC library. }}, author = {{Kuznik, Christoph and Müller, Wolfgang}}, journal = {{North American SystemC User Group Meeting (16th)}}, title = {{{Verification Closure of SystemC Designs with Functional Coverage}}}, year = {{2011}}, } @inproceedings{26707, abstract = {{Planar graph routing works provably correct if the underlying network graph is connected and planar. Typically, wireless networks modeled as 2D graphs, are not planar and planar graph routing applied on such unprocessed network graphs may fail. Planarizing a given connected graph by removing intersecting links might be impossible if the outcome still needs to be a connected subgraph. It becomes even more difficult with distributed planarization techniques, where each node is allowed to use only the information about its local neighborhood. Furthermore, it is getting complicated if the nodes' assigned positions do not reflect the exact physical location. With or without exact location information, the outcome might be disconnected, nonplanar, or both of it. With all these unsolvable problems, the question arises how to apply planar graph routing in a realistic network setting? Fortunately, wireless network graphs bear one property which distinguishes them from arbitrary graphs: due to limited communication range, network links cannot become arbitrarily long. In this work we exploit this locality property to build a new localized planarization algorithm, which is location fault tolerant and which produces planar connected graphs in most cases in realistic wireless models. We evaluate our algorithm using the Log Normal Shadowing model and show that our algorithm always produces planar connected graphs in all simulations even when large location errors are present. }}, author = {{Mathews, Emi and Frey, Hannes}}, booktitle = {{IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks (WoWMoM)}}, pages = {{1--9}}, publisher = {{ IEEE Computer Society}}, title = {{{A Localized Planarization Algorithm for Realistic Wireless Networks}}}, year = {{2011}}, } @inproceedings{26710, author = {{Becker, Markus and Zabel, Henning and Müller, Wolfgang and Elfeky, Ahmed and DiPasquale, Anthony}}, booktitle = {{8. Paderborner Workshop Entwurf mechatronischer Systeme, Band 294}}, pages = {{315--327}}, publisher = {{Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn}}, title = {{{Virtual Prototyping softwareintensiver mechatronischer Systeme – Eine Fallstudie}}}, volume = {{294}}, year = {{2011}}, } @article{26711, author = {{Rasche, Christoph and Stern, Claudius and Kleinjohann, Lisa and Kleinjohann, Bernd}}, journal = {{ThinkMind, International Journal On Advances in Software 3 (3&4)}}, pages = {{351--370}}, title = {{{Coordinated Exploration and Goal-Oriented Path Planning using Multiple UAVs}}}, year = {{2011}}, } @inproceedings{26712, author = {{Khaluf, Yara and Mathews, Emi and Rammig, Franz-Josef}}, booktitle = {{14th IEEE International Symposium on Object/Component/Service-Oriented Real-Time Distributed Computing Workshops (ISORCW)}}, pages = {{217--226}}, publisher = {{IEEE Computer Society}}, title = {{{ Self-Organized Cooperation in Swarm Robotics}}}, year = {{2011}}, } @inproceedings{26713, author = {{Klobedanz, Kay and König, A. and Müller, Wolfgang}}, booktitle = {{Proceedings of Design, Automation, Test Europe - DATE2011}}, location = {{14. - 18. Mrz. 2011}}, publisher = {{IEEE Computer Society Press}}, title = {{{A Reconfiguration Approach for Fault-Tolerant FlexRay Networks}}}, year = {{2011}}, } @inproceedings{26714, author = {{Klobedanz, Kay and König, A. and Müller, Wolfgang and Rettberg, Achim}}, booktitle = {{Second IEEE Workshop on Self-Organizing Real-Time Systems - SORT 2011}}, publisher = {{IEEE Computer Society Press}}, title = {{{Self-Reconfiguration for Fault-Tolerant FlexRay Networks}}}, year = {{2011}}, } @inproceedings{26715, abstract = {{SystemC is a versatile C++ based design and verification language, offering various mechanisms and constructs required for embedded systems modeling. Using the add-on SystemC Verification Library (SCV) elemental constrained-random stimuli techniques may be used for verification. However, SCV has several drawbacks such as lack of a functional coverage facility supporting coverage collection on RTL and TLM models. In this article we present a functional coverage library which implements parts of the IEEE 1800-2005 SystemVerilog standard capturing functional coverage throughout the design and verification process, and allows to facilitate coverage-driven verification in SystemC.}}, author = {{Kuznik, Christoph and Müller, Wolfgang}}, booktitle = {{Proceedings of DVCON }}, title = {{{Functional Coverage-driven Verification with SystemC on Multiple Level of Abstraction}}}, year = {{2011}}, } @inproceedings{26716, abstract = {{UML profiles like SysML and MARTE have been a major research topic in electronic system design, but are mainly applied for specification and analysis in early design phases. High-Level Synthesis (HLS), however, addresses the physical implementation aspect of electronic systems, and thus leads to different requirements on the accuracy of models. For this, modular interfaces are a novel object-oriented synthesizable technique to overcome the conflict between a higher degree of abstraction and necessary details for further synthesis. In this paper, we present our approach to use SysML as an adequate modeling language for modular interfaces and C/C++/SystemC-based HLS. We extended SysML with annotations for synthesizable SystemC and high-level synthesis constraints and implemented a code generation scheme to achieve design flow automation. Based on the SysML editor Artisan Studio and an industrial case study, we demonstrate the applicability of SysML as a retargetable front-end for HLS design flows.}}, author = {{Mischkalla, Fabian and He, Da and Müller, Wolfgang}}, booktitle = {{Proceedings of 2nd Workshop on Model Based Engineering for Embedded Systems Design (M-BED)}}, title = {{{A Retargetable SysML-based Front-End for High-Level Synthesis}}}, year = {{2011}}, } @inproceedings{26717, author = {{He, Da and Mischkalla, Fabian and Müller, Wolfgang}}, booktitle = {{Proceedings of 1st international QEMU Users Forum}}, title = {{{A SysML-based Framework with QEMU-SystemC Code Generation}}}, year = {{2011}}, } @book{26726, editor = {{Hellmich, Frank}}, publisher = {{Kohlhammer}}, title = {{{Selbstkonzepte im Grundschulalter – Modelle, empirische Ergebnisse, pädagogische Konsequenzen}}}, year = {{2011}}, } @inbook{26745, author = {{Hellmich, Frank}}, booktitle = {{Didaktik des Unterrichts im Förderschwerpunkt Lernen. Ein Handreichung für Studium und Praxis}}, editor = {{Wember, Franz B. and Heimlich , Ulrich}}, pages = {{294--306}}, publisher = {{Kohlhammer}}, title = {{{Lehren und Lernen im Geometrieunterricht}}}, year = {{2011}}, } @inbook{26749, author = {{Hellmich, Frank}}, booktitle = {{Grundlegende Bildung ohne Brüche}}, editor = {{Kucharz, Diemut and Irion, Thomas and Reinhoffer , Bernd}}, pages = {{215--218}}, publisher = {{Springer VS}}, title = {{{Implizite Fähigkeitstheorien von Grundschulkindern vor dem Übergang auf die weiterführenden Schulen}}}, doi = {{10.1007/978-3-531-94131-8_39}}, volume = {{15}}, year = {{2011}}, } @inbook{26750, author = {{Hellmich, Frank and Günther, Frederike}}, booktitle = {{Selbstkonzepte im Grundschulalter – Modelle, empirische Ergebnisse, pädagogische Konsequenzen}}, editor = {{Hellmich, Frank}}, pages = {{17--46}}, publisher = {{Kohlhammer}}, title = {{{Entwicklung von Selbstkonzepten bei Kindern im Grundschulalter – ein Überblick}}}, year = {{2011}}, } @inbook{26751, author = {{Hellmich, Frank and Niebuhr-Siebert, Sandra}}, booktitle = {{Mehrsprachigkeit: Chance oder Hürde beim Schriftspracherwerb? – empirische Befunde und Beispiele guter Praxis}}, editor = {{Hornberg, Sabine and Valtin, Renate}}, pages = {{287--293}}, publisher = {{Deutsche Gesellschaft für Lesen und Schreiben}}, title = {{{Förderung der Lesekompetenz durch ein wortschatzbasiertes Lesestrategietraining bei Kindern mit Deutsch als Zweitsprache}}}, year = {{2011}}, } @inproceedings{26782, author = {{Becker, Markus}}, booktitle = {{1st International QEMU Users Forum (QUF'11)}}, title = {{{QEMU/SystemC Cosimulation at Different Abstraction Levels}}}, year = {{2011}}, } @inbook{26783, author = {{Adelt, Philipp and Esau, Natascha and Hölscher, Christian and Kleinjohann, Bernd and Kleinjohann, Lisa and Krüger, Martin and Zimmer, Detmar}}, booktitle = {{ Intelligent Mechatronics; Kapitel 10}}, pages = {{169--194}}, publisher = {{InTech Open Access Publisher}}, title = {{{Hybrid Planning for Self-Optimization in Railbound Mechatronic Systems}}}, year = {{2011}}, } @inproceedings{26784, author = {{Gnokam Defo, Gilles Bertrand and Müller, Wolfgang}}, booktitle = {{Methoden und Beschreibungssprachen zur Modellierung und Verifikation von Schaltungen und Systemen (MBMV)}}, title = {{{Synchronisation eines SystemC Restbus-Simulators mit einem Hardware-In-the-Loop FlexRay Netzwerk}}}, year = {{2011}}, } @inproceedings{26787, author = {{Khaluf, Lial and Gerth, Christian and Engels, Gregor}}, booktitle = {{Proceedings of the 23rd international conference on Advanced information systems engineering (CAiSE'11)}}, pages = {{521--535}}, publisher = {{Springer Verlag}}, title = {{{Pattern-Based Modeling and Formalizing of Business Process Quality Constraints}}}, year = {{2011}}, } @inproceedings{26789, abstract = {{Mutation analysis is a powerful tool for white-box testing of the verification environment in order to produce dependable and higher quality software products. However, due to high computational costs and the focus on high-level software languages such as Java mutation analysis is not yet widely used in commercial design flows targeting embedded (software) systems. Here the industry is modeling both hardware and related software parts at higher levels of abstraction, called virtual prototypes, to accelerate parallel development and shorten time-to-market. In this paper we propose a mutation testing verification flow for SystemC based virtual prototypes that may not rely on source code only but on annotated basic blocks and enables mutant creation at assembler level to heavily reduce execution costs and equivalence mutants likelihood.}}, author = {{Kuznik, Christoph and Müller, Wolfgang}}, booktitle = {{Proceedings of the 17th IEEE Pacific Rim International Symposium on Dependable Computing}}, title = {{{Native binary mutation analysis for embedded software and virtual prototypes in SystemC}}}, year = {{2011}}, } @inbook{26792, author = {{Esau, Natascha and Kleinjohann, Lisa}}, booktitle = {{Emotional Engineering}}, pages = {{119--142}}, publisher = {{Springer-Verlag London}}, title = {{{Emotional Robot Competence and Its Use in Robot Behavior Control}}}, year = {{2011}}, } @inproceedings{26794, abstract = {{In this paper we introduce an infrastructure for investigating Organic Computing principles such as self-optimization and self-organization in real-world scenarios based on a heterogeneous society of robots. This infrastructure, the R3PB-Workbench (Remote Real Robots at the University of Paderborn), provides a controlled environment for conducting real-world multi robot experiments, while relieving the developer from common problems like getting a global view of the entire environment and self-localization within this environment. In addition, it provides a communication layer that hides the heterogeneity of the controlled robot types and also facilitates access to each robot's subjective view. Currently we provide three types of mobile robots with different size and capabilities. Since the workbench is easily customizable, it supports the integration of additional types of robots. Hence, the degree of heterogeneity of the robot group conducting the experiments in the scope of our real-world scenario can be modified as needed. Furthermore, we elaborated a multi-robot game as an illustrative real-world scenario, which on the one hand allows for sophisticated scientific investigations and on the other hand is also appealing for an audience, even with little technical background.}}, author = {{Jungmann, Alexander and Lutterbeck, Jan and Werdehausen, Benjamin and Kleinjohann, Bernd and Kleinjohann, Lisa}}, booktitle = {{Proceedings of the 2011 workshop on Organic computing}}, pages = {{41--50}}, publisher = {{ACM}}, title = {{{Towards a Real-World Scenario for Investigating Organic Computing Principles in Heterogeneous Societies of Robots}}}, year = {{2011}}, } @inbook{26805, abstract = {{In this article we present an approach that enables robots to learn how to act and react robustly in continuous and noisy environments while not loosing track of the overall feasibility, i.e. minimising the execution time in order to keep up continuous learning. We do so by combining reinforcement learning mechanisms with techniques belonging to the field of multivariate statistics on three different levels of abstraction: the motivation layer and the two simultaneously learning strategy and skill layers. The motivation layer allows for modelling occasionally contradicting goals in terms of drives in a very intuitive fashion. A drive represents one single goal, that a robot wants to be satisfied, like charging its battery, when it is nearly exhausted, or transporting an object to a target position. The strategy layer encapsulates the main reinforcement learning algorithm based on an abstracted and dynamically adjusted Markovian state space. By means of state abstraction, we minimise the overall state space size in order to ensure feasibility of the learning process in a dynamically changing environment. The skill layer finally realises a generalised learning method for learning reactive low-level behaviours, that enable a robot to interact with the environment.}}, author = {{Jungmann, Alexander and Kleinjohann, Bernd and Richert, Willi}}, booktitle = {{Organic Computing — A Paradigm Shift for Complex Systems, Autonomic Systems}}, pages = {{545--558}}, publisher = {{Springer Basel}}, title = {{{A Fast Hierarchical Learning Approach for Autonomous Robots}}}, doi = {{10.1007/978-3-0348-0130-0_36}}, year = {{2011}}, } @inbook{26810, abstract = {{The paradigm of imitation provides a powerful means for increasing the overall learning speed in a group of robots. While separately exploring the environment in order to learn how to behave with respect to a pre-defined goal, a robot gathers experience based on its own actions and interactions with the surroundings, respectively. By accumulating additional experience via observing the behaviour of other robots, the learning process can be significantly improved in terms of speed and quality. Within this article we present an approach, that enables robots in a multi-robot society to imitate any other available robot without imposing unnecessary restrictions regarding the robots’ design. Therefore, it benefits not only from its own actions, but also from actions that an observed robot performs. In order to realise the imitation paradigm, we solve three main challenges, namely enabling a robot to decide whom and when to imitate, to interpret and thereby understand the behaviour of an observed robot, and to integrate the experience gathered by observation into its individual learning process.}}, author = {{Jungmann, Alexander and Kleinjohann, Bernd and Richert, Willi}}, booktitle = {{Organic Computing — A Paradigm Shift for Complex Systems, Autonomic Systems, Band 1 }}, pages = {{295--307}}, publisher = {{Springer Basel}}, title = {{{Increasing Learning Speed by Imitation in Multi-robot Societies}}}, doi = {{10.1007/978-3-0348-0130-0_19}}, year = {{2011}}, } @article{26904, author = {{Herbst, Antje and Diethelm, Katharina and Cheng, Guo and Alexy, Ute and Icks, Andrea and Buyken, Anette}}, issn = {{0022-3166}}, journal = {{The Journal of Nutrition}}, pages = {{1348--1354}}, title = {{{Direction of Associations between Added Sugar Intake in Early Childhood and Body Mass Index at Age 7 Years May Depend on Intake Levels}}}, doi = {{10.3945/jn.110.137000}}, year = {{2011}}, } @article{26906, abstract = {{AbstractObjectiveNutrition-related health problems such as obesity are frequent among children and adolescents of Turkish descent living in Germany, yet data on their dietary habits are scarce. One reason might be the lack of validated assessment tools for this target group. We therefore aimed to validate protein and K intakes from one 24 h recall against levels estimated from one 24 h urine sample in children and adolescents of Turkish descent living in Germany.DesignCross-sectional analyses comprised estimation of mean differences, Pearson correlation coefficients, cross-classifications and Bland–Altman plots to assess the agreement between the nutritional intake estimated from a single 24 h recall and a single 24 h urine sample collected on the previous day.SettingDortmund, Germany.SubjectsData from forty-three study participants (aged 5–18 years; 26 % overweight) with a traditional Turkish background were included.ResultsThe 24 h recall significantly overestimated mean protein and K intake by 10·7 g/d (95 % CI of mean difference: 0·6, 20·7 g/d) and 344 mg/d (95 % CI 8, 680 mg/d), respectively. Correlations between intake estimates were r = 0·25 (P = 0·1) and 0·31 (P = 0·05). Both methods classified 70 % and 69 % of the participants into the same/adjacent quartile of protein and K intake and misclassified 7 % and 7 %, respectively, into the opposite quartile. Bland–Altman plots indicated a wide scattering of differences in both protein and K intake.ConclusionsAmong children and adolescents of traditional Turkish descent living in Germany, one 24 h recall may only be valid for categorizing subjects into high, medium or low consumers.}}, author = {{Bokhof, Beate and Buyken, Anette and Doğan, Canan and Karaboğa, Arzu and Kaiser, Josa and Sonntag, Antje and Kroke, Anja}}, issn = {{1368-9800}}, journal = {{Public Health Nutrition}}, pages = {{640--647}}, title = {{{Validation of protein and potassium intakes assessed from 24 h recalls against levels estimated from 24 h urine samples in children and adolescents of Turkish descent living in Germany: results from the EVET! Study}}}, doi = {{10.1017/s1368980011002734}}, year = {{2011}}, } @phdthesis{26976, author = {{Mracek, Boris}}, publisher = {{Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn; Band 297}}, title = {{{Untersuchung des dynamischen Verhaltens gekoppelter piezoelektrischer Ultraschallmotoren mit Stoßkontakt}}}, volume = {{Band 297}}, year = {{2011}}, } @inbook{3290, author = {{Gries, Thomas}}, booktitle = {{Zukunftsfähige Wirtschaftspolitik für Deutschland und Europa}}, editor = {{Welfens, Paul J.J.}}, isbn = {{978-3-642-17606-7}}, pages = {{215 -- 246}}, publisher = {{Springer}}, title = {{{Internationale Umweltpolitik bei akkumulierender und asymmetrischer Verschmutzungsdynamik}}}, year = {{2011}}, } @article{3332, author = {{Lettmann, Theodor and Baumann, Michael and Eberling, Markus and Kemmerich, Thomas}}, isbn = {{9783642240157}}, issn = {{0302-9743}}, journal = {{Transactions on Computational Collective Intelligence V}}, pages = {{157--181}}, publisher = {{Springer Berlin Heidelberg}}, title = {{{Modeling Agents and Agent Systems}}}, doi = {{10.1007/978-3-642-24016-4_9}}, year = {{2011}}, } @inproceedings{3454, author = {{Becker, Jörg and Beverungen, Daniel and Breuker, Dominic}}, booktitle = {{XII European Workshop on Efficiency and Productivity Analysis (Abstract)}}, location = {{Verona, Italy}}, title = {{{Conceptualizing Service Network Productivity --- A Looped DEA Approach}}}, year = {{2011}}, } @inproceedings{3455, author = {{Becker, Jörg and Beverungen, Daniel and Breuker, Dominic and Dietrich, Hanns-Alexander and Knackstedt, Ralf and Peter Rauer, Hans}}, booktitle = {{ECIS 2011 Proceedings}}, location = {{Helsinki, Finland}}, pages = {{Paper 111}}, title = {{{How to Model Service Productivity for Data Envelopment Analysis? A Meta-Design Approach}}}, year = {{2011}}, } @inproceedings{3456, author = {{Becker, Jörg and Beverungen, Daniel and Knackstedt, Ralf and Dietrich, Hanns-Alexander and Breuker, Dominic and Peter Rauer, Hans and Sigge, Daniel}}, booktitle = {{XXI. International RESER Conference}}, location = {{Hamburg, Germany}}, pages = {{146----147}}, title = {{{Do we need new theories on service productivity? --- Status Quo and implications from contemporary research}}}, year = {{2011}}, } @inproceedings{3457, author = {{Becker, Jörg and Beverungen, Daniel and Knackstedt, Ralf and Matzner, Martin and Müller, Oliver}}, booktitle = {{Proceedings of the 44th Annual Hawaii International Conference on System Sciences}}, isbn = {{978-1-4244-9618-1}}, issn = {{1530-1605}}, location = {{Koloa, HI, USA}}, title = {{{Information Needs in Service Systems --- A Framework for Integrating Service and Manufacturing Business Processes}}}, doi = {{10.1109/HICSS.2011.243}}, year = {{2011}}, } @inproceedings{3458, author = {{Becker, Jörg and Beverungen, Daniel and Matzner, Martin and Müller, Oliver and Pöppelbuß, Jens}}, booktitle = {{International Conference on Design Science Research in Information Systems and Technology}}, editor = {{Jain, Hemant and P. Sinha, Atish and Vitharana, Padmal}}, pages = {{366----375}}, title = {{{Design Science in Service Research: A Framework-Based Review of IT Artifacts in Germany}}}, doi = {{10.1007/978-3-642-20633-7_26}}, year = {{2011}}, } @inproceedings{3459, author = {{Beverungen, Daniel}}, booktitle = {{32th International Conference on Information Systems (ICIS)}}, location = {{Shanghai, China}}, title = {{{Mapping the Emerging Field of Service Science: Insights from a Citation Network and Cocitation Network Analysis}}}, year = {{2011}}, } @inproceedings{3460, author = {{Beverungen, Daniel and Kohlborn, Thomas and Fielt, Erwin}}, booktitle = {{22nd Australasian Conference on Information Systems (ACIS)}}, location = {{Sydney, Australia}}, title = {{{The Morphology of Service Bundling Settings}}}, year = {{2011}}, } @inproceedings{3461, author = {{Beverungen, Daniel and Wittchen, Marion and Becker, Jörg}}, booktitle = {{Proceedings of the 19th European Conference on Information Systems}}, location = {{Helsinki, Finland}}, title = {{{Where are the participants? Including motivational aspects into theorizing and design in IS Research}}}, year = {{2011}}, } @inproceedings{3462, author = {{Hellingrath, Bernd and Becker, Jörg and Beverungen, Daniel and Böhle, Carsten and Räckers, Michael}}, booktitle = {{EMNet}}, location = {{Limassol, Zypern}}, title = {{{On the Coalescence of Supply Networks and Information Systems}}}, year = {{2011}}, } @article{3502, author = {{Becker, Jörg and Beverungen, Daniel and Knackstedt, Ralf and Müller, Oliver}}, journal = {{Enterprise Modelling and Information Systems Architectures}}, number = {{2}}, pages = {{54----69}}, title = {{{Pricing of Value Bundles: A Multi-Perspective Decision Support Approach}}}, year = {{2011}}, } @book{3620, author = {{Paetz, Nadja-Verena and Ceylan, Firat and Fiehn, Janina and Schworm, Silke and Harteis, Christian}}, publisher = {{VS Verlag für Sozialwissenschaften}}, title = {{{Kompetenz in der Hochschuldidaktik: Ergebnisse einer Delphi-Studie über die Zukunft der Hochschullehre}}}, year = {{2011}}, } @inbook{3628, author = {{Ceylan, Firat and Fiehn, Janina and Paetz, Nadja-Verena and Schworm, Silke and Harteis, Christian}}, booktitle = {{Der Bologna-Prozess aus Sicht der Hochschulforschung}}, editor = {{Nickel, Sigrun}}, pages = {{106--122}}, publisher = {{CHE}}, title = {{{Die Auswirkungen des Bologna-Prozesses--Eine Expertise der Hochschuldidaktik}}}, year = {{2011}}, } @inbook{3630, author = {{Harteis, Christian and Morgenthaler, Barbara and Kugler, Christine and Ittner, Karl-Peter and Roth, Gabriel and Graf, Bernhard}}, booktitle = {{Handbook of intuition research}}, editor = {{Sinclair, Martha}}, pages = {{145--156}}, publisher = {{Edward Elgar}}, title = {{{Intuitive decision making in emergency medicine: an explorative study}}}, year = {{2011}}, } @inbook{3632, author = {{Gruber, Hans and Harteis, Christian}}, booktitle = {{The SAGE Handbook of Workplace Learning}}, editor = {{Malloch, Marg and Cairns, Len and O'Connor, Bridget}}, pages = {{224----235}}, publisher = {{Sage}}, title = {{{Researching workplace learning in Europe}}}, year = {{2011}}, } @inproceedings{3811, author = {{Wachsmuth, Henning and Bujna, Kathrin}}, booktitle = {{Proceedings of 5th International Joint Conference on Natural Language Processing}}, editor = {{Berendt, Bettina and de Vries, Arjen and Fan, Wenfei and Macdonald, Craig and Ounis, Iadh and Ruthven, Ian}}, isbn = {{978-1-4503-0717-8}}, pages = {{632--640}}, title = {{{Back to the Roots of Genres: Text Classification by Language Function}}}, year = {{2011}}, } @inproceedings{3875, author = {{Wachsmuth, Henning and Stein, Benno and Engels, Gregor}}, booktitle = {{20th ACM International Conference on Information and Knowledge Management}}, editor = {{Berendt, Bettina and de Vries, Arjen and Fan, Wenfei and Macdonald, Craig and Ounis, Iadh and Ruthven, Ian}}, isbn = {{978-1-4503-0717-8}}, pages = {{2237--2240}}, title = {{{Constructing Efficient Information Extraction Pipelines}}}, year = {{2011}}, } @book{28933, author = {{Davis, Niki and Eickelmann, Birgit and Patru, Mariana and Schulz-Zander, Renate and Dzvimbo, Peter}}, publisher = {{UNESCO/Kennisnet}}, title = {{{EduSummIT 2011: Restructuring educational systems to move into the digital age}}}, year = {{2011}}, } @misc{2902, author = {{Märtens, Marcus}}, title = {{{The Monotone Complexity of Computing k-Clique on Random Graphs}}}, year = {{2011}}, } @phdthesis{2910, author = {{Naewe, Stefanie}}, publisher = {{Universität Paderborn}}, title = {{{Algorithms for lattice problems with respect to general norms}}}, year = {{2011}}, } @article{2953, author = {{Gries, Thomas and Naudé, Wim}}, journal = {{Journal of Public Economics}}, number = {{3-4}}, pages = {{216 -- 224}}, title = {{{Entrepreneurship and human development - A capability approach}}}, doi = {{10.1016/j.jpubeco.2010.11.008}}, volume = {{95}}, year = {{2011}}, } @article{2954, author = {{Gries, Thomas and Naudé, Wim}}, journal = {{Entrepreneurship Research Journal}}, number = {{3}}, title = {{{Entrepreneurship, Structural Change and a Global Economic Crisis}}}, doi = {{10.2202/2157-5665.1029}}, volume = {{1}}, year = {{2011}}, } @article{2955, author = {{Gries, Thomas and Wieneke, Axel}}, journal = {{Journal of Comparative Economics}}, number = {{2}}, pages = {{221 -- 229}}, title = {{{SME performance in transition economies: The financial regulation and firm level corruption nexus}}}, doi = {{10.1016/j.jce.2010.09.001}}, volume = {{39}}, year = {{2011}}, } @inproceedings{2985, author = {{Ackermann, Marcel R and Blömer, Johannes and Scholz, Christoph}}, title = {{{Hardness and Non-Approximability of Bregman Clustering Problems.}}}, year = {{2011}}, } @inbook{2986, author = {{Blömer, Johannes}}, booktitle = {{Algorithms Unplugged}}, isbn = {{9783642153273}}, pages = {{159--168}}, publisher = {{Springer Berlin Heidelberg}}, title = {{{How to Share a Secret}}}, doi = {{10.1007/978-3-642-15328-0_17}}, year = {{2011}}, } @unpublished{2987, abstract = {{In this paper, we present a deterministic algorithm for the closest vector problem for all l_p-norms, 1 < p < \infty, and all polyhedral norms, especially for the l_1-norm and the l_{\infty}-norm. We achieve our results by introducing a new lattice problem, the lattice membership problem. We describe a deterministic algorithm for the lattice membership problem, which is a generalization of Lenstra's algorithm for integer programming. We also describe a polynomial time reduction from the closest vector problem to the lattice membership problem. This approach leads to a deterministic algorithm that solves the closest vector problem for all l_p-norms, 1 < p < \infty, in time p log_2 (r)^{O (1)} n^{(5/2+o(1))n} and for all polyhedral norms in time (s log_2 (r))^{O (1)} n^{(2+o(1))n}, where s is the number of constraints defining the polytope and r is an upper bound on the coefficients used to describe the convex body.}}, author = {{Blömer, Johannes and Naewe, Stefanie}}, booktitle = {{arXiv:1104.3720}}, title = {{{Solving the Closest Vector Problem with respect to Lp Norms}}}, year = {{2011}}, } @article{3052, author = {{Gries, Thomas and Gravemeyer, Stefan and Xue, Jinjun}}, journal = {{Urban Studies}}, number = {{7}}, pages = {{1457--1475}}, title = {{{Income Determination and Income Discrimination in Shenzhen}}}, doi = {{10.1177/0042098010375317}}, volume = {{48}}, year = {{2011}}, } @article{3053, author = {{Gries, Thomas and Kraft, Manfred and Meierrieks, Daniel}}, journal = {{Applied Economics}}, number = {{30}}, pages = {{4729 -- 4739}}, title = {{{Financial Deepening, Trade Openness and Economic Growth in Latin America and the Caribbean}}}, doi = {{10.1080/00036846.2010.498352}}, volume = {{43}}, year = {{2011}}, } @article{3054, author = {{Gries, Thomas and Krieger, Tim and Meierrieks, Daniel}}, journal = {{Defence and Peace Economics}}, number = {{5}}, pages = {{493 -- 508}}, title = {{{Causal Linkages Between Domestic Terrorism and Economic Growth}}}, doi = {{10.1080/10242694.2010.532943}}, volume = {{22}}, year = {{2011}}, } @article{3058, author = {{Gries, Thomas and Kraft, Manfred and Piek, Christina}}, journal = {{The Annals of Regional Science}}, number = {{3}}, pages = {{707--732}}, title = {{{Interregional Migration, Self-selection and the Returns to Education in Brazil}}}, doi = {{10.1007/s00168-009-0344-1}}, volume = {{46}}, year = {{2011}}, } @inproceedings{3137, author = {{Hofheinz, Dennis and Jager, Tibor and Kiltz, Eike}}, booktitle = {{Advances in Cryptology - ASIACRYPT 2011 - 17th International Conference on the Theory and Application of Cryptology and Information Security, Seoul, South Korea, December 4-8, 2011. Proceedings}}, pages = {{647----666}}, title = {{{Short Signatures from Weaker Assumptions}}}, doi = {{10.1007/978-3-642-25385-0_35}}, year = {{2011}}, } @inproceedings{3138, author = {{Jager, Tibor and Somorovsky, Juraj}}, booktitle = {{Proceedings of the 18th ACM Conference on Computer and Communications Security, CCS 2011, Chicago, Illinois, USA, October 17-21, 2011}}, pages = {{413----422}}, title = {{{How to break XML encryption}}}, doi = {{10.1145/2046707.2046756}}, year = {{2011}}, } @article{3183, author = {{Schneider, Steve and Treharne, Helen and Wehrheim, Heike}}, journal = {{Electr. Notes Theor. Comput. Sci.}}, pages = {{69----80}}, title = {{{Bounded Retransmission in Event-B{\(\parallel\)}CSP: a Case Study}}}, doi = {{10.1016/j.entcs.2011.11.019}}, year = {{2011}}, } @article{3184, author = {{Derrick, John and Schellhorn, Gerhard and Wehrheim, Heike}}, journal = {{{ACM} Trans. Program. Lang. Syst.}}, number = {{1}}, pages = {{4:1----4:43}}, title = {{{Mechanically verified proof obligations for linearizability}}}, doi = {{10.1145/1889997.1890001}}, year = {{2011}}, } @inproceedings{3185, author = {{Ruhroth, Thomas and Wehrheim, Heike and Ziegert, Steffen}}, booktitle = {{37th {EUROMICRO} Conference on Software Engineering and Advanced Applications, {SEAA} 2011, Oulu, Finland, August 30 - September 2, 2011}}, pages = {{83----90}}, title = {{{ReL: {A} Generic Refactoring Language for Specification and Execution}}}, doi = {{10.1109/SEAA.2011.22}}, year = {{2011}}, } @inproceedings{3186, author = {{Derrick, John and Schellhorn, Gerhard and Wehrheim, Heike}}, booktitle = {{{FM} 2011: Formal Methods - 17th International Symposium on Formal Methods, Limerick, Ireland, June 20-24, 2011. Proceedings}}, editor = {{J. Butler, Michael and Schulte, Wolfram}}, pages = {{323----337}}, title = {{{Verifying Linearisability with Potential Linearisation Points}}}, doi = {{10.1007/978-3-642-21437-0_25}}, year = {{2011}}, } @inproceedings{3187, author = {{Steenken, Dominik and Wehrheim, Heike and Wonisch, Daniel}}, booktitle = {{Formal Methods, Foundations and Applications - 14th Brazilian Symposium, {SBMF} 2011, S{\~{a}}o Paulo, Brazil, September 26-30, 2011, Revised Selected Papers}}, editor = {{da Silva Sim{\~{a}}o, Adenilso and Morgan, Carroll}}, pages = {{92----107}}, title = {{{Sound and Complete Abstract Graph Transformation}}}, doi = {{10.1007/978-3-642-25032-3_7}}, year = {{2011}}, } @inproceedings{3188, author = {{Schneider, Steve and Treharne, Helen and Wehrheim, Heike}}, booktitle = {{Proceedings 15th International Refinement Workshop, Refine@FM 2011, Limerick, Ireland, 20th June 2011.}}, editor = {{Derrick, John and A. Boiten, Eerke and Reeves, Steve}}, pages = {{139----154}}, title = {{{A {CSP} Account of Event-B Refinement}}}, doi = {{10.4204/EPTCS.55.9}}, year = {{2011}}, } @inproceedings{26981, author = {{Sondermann-Wölke, Christoph and Sextro, Walter and Reinold, Peter and Trächtler, Ansgar}}, booktitle = {{Technische Zuverlässigkeit –TTZ}}, title = {{{Zuverlässigkeitsorientierte Mehrzieloptimierung zur Aktorrekonfiguration eines X-by-wire-Fahrzeugs}}}, year = {{2011}}, } @phdthesis{26982, author = {{Krol, Rafal}}, publisher = {{Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn, Band 293}}, title = {{{Eine Reduktionsmethode zur Ableitung elektromechanischer Ersatzmodelle für piezoelektrische Wandler unter Verwendung der Finite-Elemente- Methode (FEM)}}}, volume = {{Band 293}}, year = {{2011}}, } @article{27010, author = {{Diethelm, Katharina and Remer, Thomas and Jilani, Hannah and Kunz, Clemens and Buyken, Anette}}, issn = {{0261-5614}}, journal = {{Clinical Nutrition}}, pages = {{640--646}}, title = {{{Associations between the macronutrient composition of the evening meal and average daily sleep duration in early childhood}}}, doi = {{10.1016/j.clnu.2011.05.004}}, year = {{2011}}, } @article{27011, abstract = {{There are no published data regarding the overall dietary glycaemic index (GI) and glycaemic load (GL) of Australian children and adolescents. We therefore aim to describe the dietary GI and GL of participants of the 2007 Australian National Children's Nutrition and Physical Activity Survey (2007ANCNPAS), and to identify the main foods contributing to their GL. Children, aged 2–16 years, who provided two 24 h recalls in the 2007ANCNPAS were included. A final dataset of 4184 participants was analysed. GI of each food item was assigned using a previously published method. GL was calculated, and food groups contributing to the GL were described by age group and sex. The weighted mean dietary GI and GL of the participants were 54 (sd 5) and 136 (sd 44), respectively. Among the nutrients examined, Ca had the highest inverse relationship with GI (P < 0·001), while percentage energy from starch was most positively associated with GI. The association between fibre density and GI was modest, and percentage energy from sugar had an inverse relationship with GI. Daily dietary GL contributed by energy-dense and/or nutrient-poor (EDNP) items in subjects aged 14–16 years was more than doubled that of subjects aged 2–3 years. To conclude, Australian children and adolescents were having a high-GI dietary pattern characterised by high-starchy food intake and low Ca intake. A significant proportion of their dietary GL was from EDNP foods. Efforts to reduce dietary GI and GL in children and adolescents should focus on energy-dense starchy foods.}}, author = {{Chun Yu Louie, Jimmy and Buyken, Anette and Heyer, Kristina and Flood, Victoria M.}}, issn = {{0007-1145}}, journal = {{British Journal of Nutrition}}, pages = {{1273--1282}}, title = {{{Dietary glycaemic index and glycaemic load among Australian children and adolescents}}}, doi = {{10.1017/s0007114511001577}}, year = {{2011}}, } @article{27068, abstract = {{AbstractObjectiveHighly processed foods such as convenience foods usually have a high salt content and therefore might indirectly act as adipogenic due to an increasing consumption of sugar-containing beverages (SCB). We examined the association between dietary salt and body weight status.DesignWe used data on urinary Na excretion as an indicator of dietary salt and BMI standard deviation score (BMI-SDS) and percentage body fat (%BF) of children and adolescents participating in the DONALD (Dortmund Nutritional and Anthropometric Longitudinally Designed) Study.SettingDortmund, Germany.SubjectsChildren and adolescents (n 364) who had at least two 24 h urine samples and two dietary records in the observational period between 2003 and 2009 were considered in our data analysis.ResultsRepeated-measures regression models revealed that urinary Na was positively associated with BMI-SDS (+0·202 SDS/g Na excretion at baseline; P < 0·001) and %BF (+1·303 %BF/g Na excretion at baseline; P < 0·01) at baseline in boys and girls. These associations remained significant after adjustment for SCB consumption and total energy intake. Furthermore, there was a positive trend between baseline Na excretion and the individual change in %BF in the study period (+0·364 increase in %BF/g Na excretion at baseline), which was confirmed after inclusion of SCB consumption or total energy intake. There was no significant association between the change in Na excretion and the concurrent change of either BMI-SDS or %BF in any model.ConclusionsOur results suggest that a high intake of processed salty foods could have a negative impact on body weight status in children and adolescents independently from their consumption of SCB.}}, author = {{Libuda, Lars and Kersting, Mathilde and Alexy, Ute}}, issn = {{1368-9800}}, journal = {{Public Health Nutrition}}, pages = {{433--441}}, title = {{{Consumption of dietary salt measured by urinary sodium excretion and its association with body weight status in healthy children and adolescents}}}, doi = {{10.1017/s1368980011002138}}, year = {{2011}}, } @article{27069, author = {{Alexy, Ute and Cheng, Guo and Libuda, Lars and Hilbig, Annett and Kersting, Mathilde}}, issn = {{0261-5614}}, journal = {{Clinical Nutrition}}, pages = {{78--84}}, title = {{{24h-Sodium excretion and hydration status in children and adolescents - Results of the DONALD Study}}}, doi = {{10.1016/j.clnu.2011.08.014}}, year = {{2011}}, } @article{27076, author = {{Muckelbauer, R. and Libuda, Lars and Clausen, K. and Kersting, M.}}, issn = {{1436-9990}}, journal = {{Bundesgesundheitsblatt - Gesundheitsforschung - Gesundheitsschutz}}, pages = {{339--348}}, title = {{{Ansätze der Übergewichtsprävention durch verbessertes Trinkverhalten im Setting Grundschule}}}, doi = {{10.1007/s00103-010-1224-7}}, year = {{2011}}, } @techreport{2734, author = {{Gries, Thomas and Redlin, Margarete}}, pages = {{24}}, publisher = {{Paderborn University, CIE Center for International Economics}}, title = {{{Trade Openness and Economic Growth: A Panel Causality Analysis}}}, volume = {{2011-06}}, year = {{2011}}, } @article{27466, author = {{Bohl, Benjamin and Kepper, Johannes and Röwenstrunk, Daniel}}, journal = {{DIE TONKUNST}}, number = {{3}}, pages = {{270--276}}, title = {{{Perspektiven Digitaler Musikeditionen aus der Sicht des Edirom-Projekts}}}, volume = {{5}}, year = {{2011}}, } @inbook{27589, author = {{Muckelbauer, R. and Libuda, Lars and Kersting, M.}}, booktitle = {{Developing Children´s Food Products.}}, isbn = {{978-1-84569-431-9 }}, publisher = {{Woodhead Publishing Limited }}, title = {{{Fluids and children’s health. }}}, year = {{2011}}, } @inproceedings{27622, author = {{Nebe, Karsten and Fischer, Holger Gerhard and Klompmaker, Florian and Jung, Helge}}, pages = {{263--273}}, publisher = {{Oldenbourg Wissenschaftsverlag GmbH, M {\ "u} nchen}}, title = {{{Multi-touch, tangible and pen-based interaction in incident planning}}}, year = {{2011}}, } @inproceedings{27623, abstract = {{Kollaboratives Lernen kann im Großen und Ganzen durch verteilte, unterbrochene kooperative Prozesse charakterisiert werden, da die Interaktion mit anderen Lernern und Lehrenden zu verschiedenen Zeiten an verschiedenen Orten stattfindet. Um die zeitlich und räumlich verteilten Lernaktivitäten zu integrieren, muss ein virtueller Lernraum bereitgestellt werden der einerseits als Arena kooperativer Interaktionen dient und andererseits gleichzeitig ein verteiltes externes Gedächtnis durch persistente Lernobjekte bietet. Das Konzept des ko-aktiven Lernens umfasst eine Vielzahl von technischen Konzepten und Funktionen, die kollaboratives Lernen in unterschiedlichsten Lernarrangements unterstützen. }}, author = {{Keil, Reinhard and Selke, Harald}}, booktitle = {{Proc. of Int. Conf. on Improving University Teaching}}, pages = {{191--202}}, title = {{{Virtual Learning Spaces for Co-Active Learning}}}, year = {{2011}}, } @inproceedings{27624, author = {{Paelke, Volker and Nebe, Karsten and Klompmaker, Florian and Jung, Helge}}, title = {{{Multi-Touch Interaction for Disaster Management.}}}}, year = {{2011}}, } @inproceedings{27625, author = {{Keil, Reinhard}}, editor = {{Breiter, A and Wind, M}}, pages = {{165--184}}, publisher = {{Lit Verlag, M {\" u} nster}}, title = {{{Hypothesis- guided technology design as the basis of contextual computer science}}}, year = {{2011}}, } @inproceedings{27626, author = {{Klompmaker, Florian and Nebe, Karsten and Jung, H}}, title = {{{Smart Fiducials: Advanced Tangible Interaction Techniques through Dynamic Visual Paterns}}}, year = {{2011}}, } @inproceedings{27627, author = {{Klompmaker, Florian and Nebe, Karsten and Busch, Clemens and Willemsen, Detlev}}, booktitle = {{Proceedings of the International Conference on Health Informatics}}, title = {{{User Centered Design Process of OSAMI-D: Developing User Interfaces for a Remote Ergometer Training Application}}}, year = {{2011}}, } @inproceedings{27628, author = {{Laroque, Christoph and Schulte, Jonas}}, booktitle = {{Proceedings of the 2011 Spring Simulation Multiconference}}, editor = {{Chinni, M.I and Weed, D}}, title = {{{KoProV: A Learning Approach for Coordinated Learning of Modeling and Simulation Based on Knowledge Modules}}}, year = {{2011}}, } @inproceedings{27629, author = {{Schulte, Jonas}}, booktitle = {{Proceedings of the 13th International Conference on Enterprise Information Systems, SciTePress - Science and Technology Publications, Beijing, China}}, editor = {{Zhang, R and Cordeiro, José and Li, X and Zhang, Z and Zhang, J}}, pages = {{348--357}}, title = {{{WasabiBeans - Web Application Services and Business Integration}}}, year = {{2011}}, } @inproceedings{27630, author = {{Rudolph, S and Niehus, Dominik}}, publisher = {{Universit {\" a} t Paderborn}}, title = {{{Computer scientists, ergonomists and chemists are shaping the future. E-Portofolios support {\ "u} the flow rate in education and training}}}, year = {{2011}}, } @inproceedings{27631, author = {{Schulte, Jonas and Keil, Reinhard and Klaholt, D and Sauer, J}}, booktitle = {{Proceedings of the 13th International Conference on Enterprise Information Systems, SciTePress - Science and Technology Publications, Beijing, China}}, editor = {{Zhang, R and Cordeiro, José and Li, X and Zhang, Z and Zhang, J}}, pages = {{43--52}}, title = {{{Koi School - Towards the Next Level of Communication, Organization and Integration in Education}}}, year = {{2011}}, } @inproceedings{27632, author = {{Schulte, Jonas and Keil, Reinhard and Oberhoff, Andreas}}, editor = {{K {\ "o} hler, Th. and Neumann, J}}, publisher = {{Waxmann Verlag, M { \ "u} nster}}, title = {{{Support {\ "u} support of the co-active research discourse through synergies between e-learning and e-science}}}, year = {{2011}}, } @inproceedings{27633, author = {{Schulte, Jonas and Keil, Reinhard and Rybka, Johann and Ferber, Ferdinand}}, booktitle = {{Proceedings of the 13th International Conference on Enterprise Information Systems, SciTePress - Science and Technology Publications, Bejing, China}}, editor = {{Zhang, R and Cordeiro, J and Li, X and Zhang, Z and Zhang, J}}, pages = {{407--412}}, title = {{{Laboratory 2.0 - Towards and Integrated Research Environment for Engineering Mechanics}}}, year = {{2011}}, } @inproceedings{27634, author = {{Schulte, Jonas and Rybka, Johann and Ferber, Ferdinand and Keil, Reinhard}}, editor = {{K {\ "o} hler, Th. and Neumann, J}}, pages = {{92-- 101}}, publisher = {{Waxmann Verlag, M {\ "u} nster}}, title = {{{KoForum - Cooperative research environment for {\ "u} for cross-organizational scientific Laboratory work}}}, year = {{2011}}, } @phdthesis{27635, author = {{Erren, Patrick}}, publisher = {{Heinz Nixdorf Institut, Universit{\"a}t Paderborn}}, title = {{{Semantic Positioning - Supporting Knowledge Work through Semantic Spatial Arrangements}}}, year = {{2011}}, } @inproceedings{27636, author = {{Fischer, Holger Gerhard and Nebe, Karsten and Klompmaker, Florian}}, pages = {{28--37}}, publisher = {{Springer-Verlag}}, title = {{{A Holistic Model for Integrating Usability Engineering and Software Engineering Enriched with Marketing Activities}}}, year = {{2011}}, } @inproceedings{27637, author = {{Jung, Helge and Nebe, Karsten and Klompmaker, Florian and Fischer, Holger Gerhard}}, pages = {{305--308}}, publisher = {{Oldenbourg Wissenschaftsverlag GmbH, M {\ "u} nchen}}, title = {{{Authenticated entries on multi-touch tables}}}, year = {{2011}}, } @inproceedings{27638, author = {{Nebe, Karsten and Klompmaker, Florian and Jung, Helge and Fischer, Holger Gerhard}}, pages = {{100--109}}, publisher = {{Springer Verlag}}, title = {{{Exploiting New Interaction Techniques for Disaster Control Management using Multitouch-, Tangible- and Pen-based-Interaction}}}, year = {{2011}}, } @inproceedings{27639, author = {{Fischer, Holger Gerhard and Bogner, Christian and Geis, Thomas and Polkehn, Knut and Zimmermann, Dirk}}, pages = {{72--74}}, publisher = {{German UPA}}, title = {{{Der Qualit {\ "a} tsstandard f {\" u} r Usability engineering of the German UPA: Current status of the work}}}, year = {{2011}}, } @inproceedings{2771, author = {{Herrmann, Philipp and Kundisch, Dennis and Rahman, Mohammad}}, booktitle = {{12th Workshop on Information Systems and Economics (WISE)}}, location = {{Shanghai, People's Republic of China}}, title = {{{The Impact of Delegating Decision Making to IT on the Sunk Cost Effect}}}, year = {{2011}}, } @inproceedings{2772, author = {{Herrmann, Philipp and Kundisch, Dennis and Rahman, Mohammad}}, booktitle = {{INFORMS 2011 Annual Meeting, Track Digital Channel and It Usage}}, location = {{Charlotte, USA}}, title = {{{Sunk Cost Effect: The Impact of Delegating Decision Making to IT}}}, year = {{2011}}, } @article{27728, abstract = {{ Context: Whether prepubertal glucocorticoid status impacts on the timing of puberty is not clear. Objective: The objective of the study was to examine the relationship between prepubertal glucocorticoid status and early or late pubertal markers, independent of adrenarchal and nutritional status. Design and Participants: Prospective cohort study of healthy Caucasian children (n = 111, 56 boys) who provided both 24-h urine samples and weighed dietary records 1 and 2 yr before the start of pubertal growth spurt [age at take-off (ATO)]. Measurements: Major urinary glucocorticoid and androgen metabolites determined by gas chromatography-mass spectrometry analysis were summed to assess daily overall cortisol (ΣC21) and adrenal androgen secretion; urinary free cortisol and cortisone measured by RIA were summed (UFF+UFE) as an indicator of potentially bioactive free glucocorticoids. Main Outcomes: The main outcomes included ATO, age at peak height velocity, age at menarche/voice break, ages at Tanner stage 2 for breast (girls) and genital (boys) development, and pubic hair. Results: In girls ΣC21, but not UFF+UFE, was associated with pubertal markers after adjusting for overall adrenal androgen, urinary nitrogen, and body fat. Girls with higher ΣC21 (fourth quartile) reached ATO 0.7 yr (P = 0.01) and menarche 0.9 yr later (P = 0.006) than girls with lower ΣC21 (first quartile). The ΣC21 tended to be also positively associated with age at Tanner stage 2 for breast (P = 0.1), Tanner stage 2 for pubic hair (P = 0.1), and age at peak height velocity (P = 0.06). In boys, neither the ΣC21 nor UFF+UFE was related to pubertal timing. Conclusion: An individually higher prepubertal glucocorticoid secretion level, even in physiological range, appears to delay early and late pubertal timing of healthy girls, particularly their onset of pubertal growth spurt and menarche. }}, author = {{Shi, Lijie and Wudy, Stefan A. and Buyken, Anette and Maser-Gluth, Christiane and Hartmann, Michaela F. and Remer, Thomas}}, issn = {{0021-972X}}, journal = {{The Journal of Clinical Endocrinology & Metabolism}}, pages = {{E891--E898}}, title = {{{Prepubertal Glucocorticoid Status and Pubertal Timing}}}, doi = {{10.1210/jc.2010-2935}}, year = {{2011}}, } @article{27729, author = {{Diethelm, Katharina and Bolzenius, Katja and Cheng, Guo and Remer, Thomas and Buyken, Anette}}, issn = {{1747-7166}}, journal = {{International Journal of Pediatric Obesity}}, pages = {{e114--e123}}, title = {{{Longitudinal associations between reported sleep duration in early childhood and the development of body mass index, fat mass index and fat free mass index until age 7}}}, doi = {{10.3109/17477166.2011.566338}}, year = {{2011}}, }