@inproceedings{63083, author = {{Fechner, Sabine and van Vorst, Helena}}, booktitle = {{Ebook of the ESERA 2011 conference. Science learning and citizenship (S. 135–141)}}, editor = {{Bruguiére, C. and Tiberghien , A. and Clément , P.}}, title = {{{Characteristics of real life contexts and their influence on student interest in learning chemistry}}}, 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}}, } @inbook{12742, author = {{Hagengruber, Ruth Edith}}, booktitle = {{Emilie Du Châtelet between Leibniz and Newton}}, editor = {{Hagengruber, Ruth}}, isbn = {{9789400720749}}, pages = {{1--59}}, publisher = {{Springer VS}}, title = {{{Emilie Du Châtelet and the Transformation of Metaphysics}}}, year = {{2012}}, } @article{52225, author = {{Schäfer, Mirko and Wagner, Johannes and Schlüter, Alexander and Hesselbach, Jens}}, issn = {{2305-9974}}, journal = {{SNE Simulation Notes Europe}}, number = {{1}}, pages = {{1--6}}, publisher = {{ARGESIM Arbeitsgemeinschaft Simulation News}}, title = {{{Energy Flows in Industrial Buildings and Machines using the Example of a Node Model}}}, doi = {{10.11128/sne.22.tn.10103}}, volume = {{22}}, year = {{2012}}, } @inproceedings{24033, abstract = {{The need for intelligent resource management (IRM) spans across a multitude of applications. To address this requirement, we present EP-IRM, an event processing system recognising composite events given multiple sources of information in order to support IRM. EP-IRM has been deployed in two real-world applications. Moreover, with a small effort it may be used in a wide range of applications requiring IRM. We present an evaluation of the system, and discuss the lessons learnt during its development and deployment.}}, author = {{Artikis, Alexander and Marterer, Robin and Pottebaum, Jens and Paliouras, Georgios}}, booktitle = {{Proceedings of the 20th European Conference on Artificial Intelligence}}, isbn = {{9781614990970}}, pages = {{943--948}}, publisher = {{{IOS Press}}}, title = {{{Event Processing for Intelligent Resource Management}}}, doi = {{10.3233/978-61499-098-7-943}}, year = {{2012}}, } @inbook{65338, author = {{Droß-Krüpe, Kerstin}}, booktitle = {{Ordnungsrahmen antiker Ökonomien. Ordnungskonzepte und Steuerungsmechanismen antiker Wirtschaftssysteme im Vergleich}}, editor = {{Günther, S.}}, pages = {{215--226}}, title = {{{Stoff und Staat - Überlegungen zur Interaktion von Textilökonomie und römischer Staatlichkeit im 1.-3. Jh. n.Chr.}}}, year = {{2012}}, } @article{65339, author = {{Droß-Krüpe, Kerstin}}, journal = {{MBAH}}, pages = {{95--113}}, title = {{{Zwischen Markt und Werkstatt tritt der Verleger? Überlegungen zur Existenz des Verlagssystems in der römischen Kaiserzeit}}}, volume = {{29}}, year = {{2012}}, } @inbook{65337, author = {{Droß-Krüpe, Kerstin}}, booktitle = {{Kleidung und Identität in religiösen Kontexten der römischen Kaiserzeit}}, editor = {{Schrenk, S. and Vössing, K.}}, pages = {{163--173}}, title = {{{Textilproduktion in Heiligtümern der römischen Kaiserzeit}}}, volume = {{4}}, year = {{2012}}, } @article{22920, author = {{Gries, Thomas and Prior, Ulrich and Sureth-Sloane, Caren}}, journal = {{Journal of Public Economic Theory}}, number = {{3}}, pages = {{521--545}}, title = {{{A Tax Paradox for Investment Decisions under Uncertainty}}}, doi = {{10.1007/BF03342734}}, volume = {{14}}, year = {{2012}}, } @article{8556, abstract = {{We consider the space of complete rank two collineations. Starting from its description as a limit of GIT-quotients of a Grassmanian G(2, n) by a certain $\mathbb{C}^*$-action, we determine the Cox ring by means of toric ambient modifications.}}, author = {{Hausen, Jürgen and Liebendörfer, Michael}}, issn = {{1522-2616}}, journal = {{Mathematische Nachrichten}}, number = {{8-9}}, pages = {{974--980}}, title = {{{The Cox ring of the space of complete rank two collineations}}}, doi = {{10.1002/mana.201100043}}, volume = {{285}}, year = {{2012}}, } @article{35278, author = {{Magyar, Balázs and Sauer, B and Horák, P}}, issn = {{1785-8860}}, journal = {{Acta Polytechnica Hungarica}}, number = {{6}}, pages = {{233--252}}, title = {{{Tribological Investigation of K Type Worm Gear Drives}}}, volume = {{9}}, year = {{2012}}, } @article{66786, abstract = {{This article focuses on ancestry as a controversial marker of Britishness/Germanness. Considering developments in nationality law and large-scale survey data for England and Germany, it illustrates that macrocontextual distinctions into civic and ethnic nations tend to overestimate cross-national differences, while underestimating important within-country variations according to people’s educational background. The fact that—in both countries—higher levels of formal education are strongly associated with more ethnically inclusive notions of legitimate national membership underlines the formative potential of formal education in contemporary multicultural societies.}}, author = {{Pöllmann, Andreas}}, issn = {{2158-2440}}, journal = {{Sage Open}}, number = {{4}}, pages = {{1--6}}, publisher = {{SAGE Publications}}, title = {{{Locating ancestry in notions of Britishness/Germanness: Beyond waning myths of civic and ethnic nations}}}, doi = {{10.1177/2158244012466666}}, volume = {{2}}, year = {{2012}}, } @misc{66818, author = {{Pöllmann, Andreas}}, booktitle = {{Sociology}}, issn = {{0038-0385}}, number = {{4}}, pages = {{773--774}}, publisher = {{SAGE Publications}}, title = {{{Negotiating political identities: Multiethnic schools and youth in Europe}}}, doi = {{10.1177/0038038512444946}}, volume = {{46}}, year = {{2012}}, } @inproceedings{1120, abstract = {{SCM is a simple, modular and flexible system for web monitoring and customer interaction management. In our view, its main advantages are the following: It is completely web based. It combines all technologies, data, software agents and human agents involved in the monitoring and customer interaction process. It can be used for messages written in any natural language. Although the prototype of SCM is designed for classifying and processing messages about mobile-phone related problems in social networks, SCM can easily be adapted to other text types such as discussion board posts, blogs or emails. Unlike comparable systems, SCM uses linguistic technologies to classify messages and recognize paraphrases of product names. For two reasons, product name paraphrasing plays a major role in SCM: First, product names typically have many, sometimes hundreds or thousands of intralingual paraphrases. Secondly, product names have interlingual paraphrases: The same products are often called or spelt differently in different countries and/or languages. By mapping product name variants to an international canonical form, SCM allows for answering questions like Which statements are made about this mobile phone in which languages/in which social networks/in which countries/...? The SCM product name paraphrasing engine is designed in such a way that standard variants are assigned automatically, regular variants are assigned semiautomatically and idiosyncratic variants can be added manually. With this and similar features we try to realize our philosophy of simplicity, modularity and flexibility: Whatever can be done automatically is done automatically. But manual intervention is always possible and easy and it does not conflict in any way with the automatic functions of SCM.}}, author = {{Schuster, Jörg and Lee, Yeong Su and Kobothanassi, Despina and Bargel, Matthias and Geierhos, Michaela}}, booktitle = {{International Conference on Information Society (i-Society 2011)}}, isbn = {{978-1-61284-148-9}}, keywords = {{Social Media Business Integration, Contact Center Application Support, Monitoring Social Conversations, Social Customer Interaction Management, Monitoring, Software Agents}}, location = {{London, UK}}, pages = {{153--158}}, publisher = {{IEEE}}, title = {{{SCM - A Simple, Modular and Flexible Customer Interaction Management System}}}, year = {{2011}}, } @inbook{1121, abstract = {{This paper presents a novel linguistic information extraction approach exploiting analysts’ stock ratings for statistical decision making. Over a period of one year, we gathered German stock analyst reports in order to determine market trends. Our goal is to provide business statistics over time to illustrate market trends for a user-selected company. We therefore recognize named entities within the very short stock analyst reports such as organization names (e.g. BASF, BMW, Ericsson), analyst houses (e.g. Gartner, Citigroup, Goldman Sachs), ratings (e.g. buy, sell, hold, underperform, recommended list) and price estimations by using lexicalized finite-state graphs, so-called local grammars. Then, company names and their acronyms respectively have to be cross-checked against data the analysts provide. Finally, all extracted values are compared and presented into charts with different views depending on the evaluation criteria (e.g. by time line). Thanks to this approach it will be easier and even more comfortable in the future to pay attention to analysts’ buy/sell signals without reading all their reports.}}, author = {{Lee, Yeong Su and Geierhos, Michaela}}, booktitle = {{Modeling and Using Context: 7th International and Interdisciplinary Conference, CONTEXT 2011, Karlsruhe, Germany, September 26-30, 2011, Proceedings}}, editor = {{Beigl, Michael and Christiansen, Henning and Roth-Berghofer, Thomas R. and Kofod-Petersen, Anders and Coventry, Kenny R. and Schmidtke, Hedda R.}}, isbn = {{9783642242786}}, location = {{Karlsruhe, Germany}}, pages = {{173--184}}, publisher = {{Springer}}, title = {{{Buy, Sell, or Hold? Information Extraction from Stock Analyst Reports}}}, doi = {{10.1007/978-3-642-24279-3_19}}, volume = {{6967}}, year = {{2011}}, } @inproceedings{1122, abstract = {{Within this paper, we will describe a new approach to customer interaction management by integrating social networking channels into existing business processes. Until now, contact center agents still read these messages and forward them to the persons in charge of customer’s in the company. But with the introduction of Web 2.0 and social networking clients are more likely to communicate with the companies via Facebook and Twitter instead of filling data in contact forms or sending e-mail requests. In order to maintain an active communication with international clients via social media, the multilingual consumer contacts have to be categorized and then automatically assigned to the corresponding business processes (e.g. technicalservice, shipping, marketing, and accounting). This allows the company to follow general trends in customer opinions on the Internet, but also record two-sided communication for customer relationship management.}}, author = {{Geierhos, Michaela and Lee, Yeong Su and Bargel, Matthias}}, booktitle = {{Multilingual Resources, Multilingual Applications: Proceedings of the Conference of the German Society for Computational Linguistics and Language Technology (GSCL) 2011}}, editor = {{Hedeland, Hanna and Schmidt, Thomas and Wörner, Kai}}, issn = {{0176-599X}}, keywords = {{Classification of Multilingual Customer Contacts, Contact Center Application Support, Social Media Business Integration}}, location = {{Hamburg, Germany}}, pages = {{219--222}}, publisher = {{University of Hamburg}}, title = {{{Processing Multilingual Customer Contacts via Social Media}}}, volume = {{96}}, year = {{2011}}, } @inproceedings{1123, abstract = {{Within this paper, we describe the special requirements of a semantic annotation scheme used for biographical event extraction in the framework of the Europeancollaborative research project Biographe. This annotationscheme supports interlingual search for people due to its multilingual support covering four languages such as English, German, French and Dutch.}}, author = {{Geierhos, Michaela and Bouraoui, Jean-Leon and Watrin, Patrick}}, booktitle = {{Multilingual Resources, Multilingual Applications. Proceedings of the Conference of the German Society for Computational Linguistics and Language Technology (GSCL) 2011}}, editor = {{Hedeland, Hanna and Schmidt, Thomas and Wörner, Kai}}, issn = {{0176-599X}}, keywords = {{Biographical Event Extraction for Interlingual People Search, Semantic Annotation Scheme}}, location = {{Hamburg, Germany}}, pages = {{45--50}}, publisher = {{University of Hamburg}}, title = {{{Towards Multilingual Biographical Event Extraction}}}, volume = {{96}}, year = {{2011}}, } @article{1125, abstract = {{Since customers first share their problems with a social networking community before directly addressing a company, social networking sites such as Facebook, Twitter, MySpace or Foursquare will be the interface between customer and company. For this reason, it is assumed that social networks will evolve into a common communication channel – not only between individuals but also between customers and companies. However, social networking has not yet been integrated into customer interaction management (CIM) tools. In general, a CIM application is used by the agents in a contact centre while communicating with the customers. Such systems handle communication across multiple different channels, such as e-mail, telephone, Instant Messaging, letter etc. What we do now is to integrate social networking into CIM applications by adding another communication channel. This allows the company to follow general trends in customer opinions on the Internet, but also record two-sided communication for customer service management and the company’s response will be delivered through the customer’s preferred social networking site.}}, author = {{Geierhos, Michaela}}, issn = {{17982340}}, journal = {{Journal of Advances in Information Technology}}, keywords = {{Social Media Business Integration, Multichannel Customer Interaction Management, Contact Centre Application Support}}, number = {{4}}, pages = {{222--233}}, publisher = {{Engineering and Technology Publishing (ETPub)}}, title = {{{Customer Interaction 2.0: Adopting Social Media as Customer Service Channel}}}, doi = {{10.4304/jait.2.4.222-233}}, volume = {{2}}, year = {{2011}}, } @article{20947, abstract = {{Alkylphosphonic acids of different alkyl chain lengths were adsorbed on electrochemically polished NiTi surfaces from ethanolic solutions. The electropolishing process led to passive films mainly composed of Ti-oxyhydroxide. The surface showed nanoscopic etching pits with a depths of about 2 nm and a diameter of about 20 nm. The interfacial binding mechanism of the phosphonic acid group to the oxyhydroxide surface and the ordering of the monolayer were spectroscopically analysed by means of infrared reflection absorption FTIR-spectroscopy with (PM-IRRAS) and without (IRRAS) photoelastic modulation. The comparison of IRRAS and PM-IRRAS data of the long chain octadecylphosphonic acid monolayer proved that the binding mechanism of the phosphonic acid group to the oxyhydroxide surface is based on a mono-or bidentate bond, which is not stable in the presence of high water activities. An alkyl chain length of 17 CH2 groups is required for the formation of self-assembled monolayers, which are stable in aqueous environments. These long chain aliphatic organophosphonic acid monolayers were shown to inhibit anodic and cathodic surface reactions. (C) 2010 Elsevier B.V. All rights reserved.}}, author = {{Maxisch, M. and Ebbert, Christoph and Torun, B. and Fink, N. and de los Arcos, T. and Lackmann, J. and Maier, H. J. and Grundmeier, Guido}}, issn = {{1873-5584}}, journal = {{APPLIED SURFACE SCIENCE}}, number = {{6}}, pages = {{2011--2018}}, title = {{{PM-IRRAS studies of the adsorption and stability of organophosphonate monolayers on passivated NiTi surfaces}}}, doi = {{10.1016/j.apsusc.2010.09.044}}, volume = {{257}}, year = {{2011}}, } @article{9765, abstract = {{The multi-objective optimal design of a piezoelectric sandwich ultrasonic transducer is studied. The maximum vibration amplitude and the minimum electrical input power are considered as optimization objectives. Design variables involve continuous variables (dimensions of the transducer) and discrete variables (material types). Based on analytical models, the optimal design is formulated as a constrained multi-objective optimization problem. The optimization problem is then solved by using the elitist non-dominated sorting genetic algorithm (NSGA-II) and Pareto-optimal designs are obtained. The optimized results are analyzed and the preferred design is proposed. The optimization procedure presented in this contribution can be applied in multi-objective optimization problems of other piezoelectric transducers.}}, author = {{Hemsel, Tobias and Fu, Bo and Jing, Yi and Fu, Xuan}}, journal = {{Key Engineering Materials}}, pages = {{1808--1812}}, publisher = {{Trans Tech Publ}}, title = {{{Multi-Objective Optimization of a Piezoelectric Sandwich Ultrasonic Transducer by Using Elitist Non-Dominated Sorting Genetic Algorithm}}}, doi = {{10.4028/www.scientific.net/KEM.474-476.1808}}, volume = {{474 - 476}}, year = {{2011}}, }