@phdthesis{Weiss, author = {Weiss, Matthias}, title = {Labor Market Effects of Technological Change and Working Time Reduction}, language = {en} } @incollection{BuchmannSchwaegerl, author = {Buchmann, Thomas and Schw{\"a}gerl, Felix}, title = {Advancing Negative Variability in Model-Driven Software Product Line Engineering}, series = {Communications in Computer and Information Science}, booktitle = {Communications in Computer and Information Science}, publisher = {Springer International Publishing}, address = {Cham}, isbn = {9783319563893}, issn = {1865-0929}, doi = {10.1007/978-3-319-56390-9_1}, pages = {1 -- 26}, abstract = {Model-driven software product line engineering aims at increasing the productivity of development of variational software. The principle of negative variability is realized by a multi-variant domain model, from which elements not needed for specific product variants are removed. The application of negative variability is impeded by two factors: First, metamodel restrictions lead to limited expressiveness of the multi-variant domain model. Second, unintended information loss may occur during product derivation. In this paper, we present two conceptual extensions to model-driven product line engineering based on negative variability, being alternative mappings and surrogates. Alternative mappings virtually extend the multi-variant domain model. Surrogates repair unintended information loss by context-sensitive analyses. Both extensions have been implemented in FAMILE, a model-driven product line tool that is based on EMF. Alternative mappings are defined in a dedicated mapping model. Surrogate rules may be defined in a declarative domain-specific language and are taken into account during product derivation. The added value of alternative mappings and surrogates is demonstrated by a running example, a UML-based graph library.}, language = {en} } @incollection{HeeseThaler, author = {Heese, Carl and Thaler, Tilman}, title = {{\"O}konomisierung des Fachdiskurses? Empirische Analyse der Zeitschrift Sozialmagazin}, series = {Soziale Arbeit in der {\"O}konomisierungsfalle}, booktitle = {Soziale Arbeit in der {\"O}konomisierungsfalle}, editor = {M{\"u}hrel, Eric and Birgmeier, Bernd}, edition = {1. Aufl.}, publisher = {VS Springer}, address = {Wiesbaden}, isbn = {978-3-658-13060-2}, doi = {10.1007/978-3-658-13060-2_7}, pages = {95 -- 106}, abstract = {Die {\"O}konomisierung der Sozialen Arbeit ist ein vieldiskutiertes und kontroverses Th ema. Das Spektrum der Diskussion reicht dabei von der affi rmativen Aufnahme der Th ematik mit Beitr{\"a}gen zu dem relativ neuen Th ema des Sozialmanagements bis zur detaillierten Beschreibung einer negativen sozial-politischen Tendenz, f{\"u}r deren Charakteristik der Begriff der {\"O}konomisierung {\"u}berwiegend pejorativ gebraucht wird. Hier werden h{\"a}ufi g Vorg{\"a}nge problematisiert, indem {\"o}konomische R{\"u}cksichten als imperative Verdr{\"a}ngungen der Eigenlogik der Sozialen Arbeit interpretiert werden. Die affi rmative Aufnahme hat ihren systematischen Niederschlag in der Formulierung von klassischen Sozialmanagementmodellen wie dem Freiburger Managementmodell (siehe Schwarz 2000) und dem Bielefelder Diakonie-Managementmodell (siehe Lohmann 1997) gefunden. Ihr in die Praxis wirkendes Pendant stellt die expansive Entwicklung von Studieng{\"a}ngen f{\"u}r das Sozialmanagement dar (vgl. Boeßenecker/Markert 2007). Der andere Pol der Diskussion wird exemplarisch durch das „Schwarzbuch Soziale Arbeit" (Seithe 2011) repr{\"a}sentiert.}, language = {de} } @article{HeeseStein, author = {Heese, Carl and Stein, Margit}, title = {Auf welche Schl{\"u}sselqualifikationen kommt es an? Ausbilder und Auszubildende bewerten}, series = {Der Modellversuch "Leistungsstarke Auszubildende nachhaltig f{\"o}rdern". Wissenschaftliche Diskussionspapiere}, journal = {Der Modellversuch "Leistungsstarke Auszubildende nachhaltig f{\"o}rdern". Wissenschaftliche Diskussionspapiere}, number = {67}, editor = {Stein, Margit and Heese, Carl}, publisher = {BIBB}, address = {Bonn}, pages = {93 -- 104}, language = {de} } @article{Heese, author = {Heese, Carl}, title = {Modellversuch "Leistungsstarke Auszubildende nachhaltig f{\"o}rdern" - Ziele und Konzeption}, series = {Der Modellversuch "Leistungsstarke Auszubildende nachhaltig f{\"o}rdern"}, journal = {Der Modellversuch "Leistungsstarke Auszubildende nachhaltig f{\"o}rdern"}, number = {67}, editor = {Heese, Carl and Stein, Margits}, publisher = {BIBB}, address = {Bonn}, pages = {19 -- 30}, language = {de} } @incollection{HeeseStein, author = {Heese, Carl and Stein, Margit}, title = {Evaluationsans{\"a}tze in der Modellversuchsforschung}, series = {Wissenschaftliche Begleitforschung bei der Neugestaltung des Lernens}, booktitle = {Wissenschaftliche Begleitforschung bei der Neugestaltung des Lernens}, editor = {Holz, H. and Schremme, D.}, publisher = {Bertelsmann}, address = {Bielefeld}, isbn = {9783763910496}, pages = {221 -- 230}, language = {de} } @article{Heese, author = {Heese, Carl}, title = {Schulentwicklung durch "Pers{\"o}nliche Projekte"}, series = {Schul-Managment: Die Zeitschrift f{\"u}r Schulleitung und Schulpraxis}, volume = {41}, journal = {Schul-Managment: Die Zeitschrift f{\"u}r Schulleitung und Schulpraxis}, number = {5}, publisher = {Cornelsen Schulverlage}, address = {M{\"u}nchen}, issn = {0341-8235}, pages = {27 -- 29}, language = {de} } @article{HeeseWaldmueller, author = {Heese, Carl and Waldm{\"u}ller, Norbert}, title = {Interkulturelles Management: Ben{\"o}tigt das Krankenhaus Integrationsbeauftragte?}, series = {Das Krankenhaus}, volume = {Vol. 102}, journal = {Das Krankenhaus}, publisher = {Kohlhammer}, address = {Stuttgart}, issn = {0340-3602}, pages = {867 -- 869}, language = {de} } @article{Heese, author = {Heese, Carl}, title = {Das Qualit{\"a}tswesen einer Rehaeinrichtung: Wie kann man das als Patient oder Angeh{\"o}riger nutzen?}, series = {Wachkoma und danach}, volume = {9}, journal = {Wachkoma und danach}, number = {4}, editor = {Haferkamp, Hermann}, pages = {52 -- 55}, language = {de} } @article{HeeseWiederer, author = {Heese, Carl and Wiederer, Ralf}, title = {Neue Rollenverteilung in der Arztassistenz}, series = {F{\"u}hren und Wirtschaften im Krankenhaus: F \& W}, volume = {24}, journal = {F{\"u}hren und Wirtschaften im Krankenhaus: F \& W}, number = {5}, publisher = {Bibliomed-Medizinische Verlagsges.}, address = {Melsungen}, pages = {500 -- 502}, language = {de} } @article{SchmidtDenkerDashielletal., author = {Schmidt, Oliver G. and Denker, Ullrich and Dashiell, Michael W. and Jin-Phillipp, Neng Yun and Eberl, Karl and Schreiner, Rupert and Gr{\"a}beldinger, Hedwig and Schweizer, Heinz C. and Christiansen, Silke H. and Ernst, Frank}, title = {Laterally aligned Ge/Si islands: a new concept for faster field-effect transistors}, series = {Materials Science and Engineering B}, volume = {89}, journal = {Materials Science and Engineering B}, number = {1-3}, publisher = {Elsevier}, address = {New York, NY}, issn = {1873-4944}, doi = {10.1016/S0921-5107(01)00810-8}, pages = {101 -- 105}, abstract = {Self-assembled and coherently strained Ge dots were grown on a Si/SiGe superlattice, which was deposited on a flat Si(001) substrate surface patterned with a regular array of straight trenches. The superlattice translates the surface modulation of the substrate into a strain-field modulation, which causes the Ge dots on its surface to form along straight lines above the buried trenches. This approach provides self-assembled Ge dots with excellent lateral periodicity, which might be useful for fabricating dot-based field-effect-transistors (DotFETs). Here, we propose the concept of a modulation-doped p-channel DotFET (p-MOD-DotFET). The p-MOD-DotFET relies on embedded Ge-rich nanostructures, which provide p-channels through the Ge-rich dots. A high Ge concentration in the dots is desirable in order to exploit the high hole mobility of Ge-rich material. We show that the commonly observed Si-Ge intermixing during Si capping of Ge dots can be suppressed by overgrowing the islands at low temperature.}, language = {en} } @incollection{MoralesBaumannPerezetal., author = {Morales, Juan A. and Baumann, Timo and P{\´e}rez, Jos{\´e} L. and Peinado, Antonio M. and G{\´o}mez, {\´A}ngel M.}, title = {Implementaci{\`o}n de un reconocedor distribuido de voz en tiempo real sobre IP}, series = {Actas de las IV Jornadas en Tecnolog{\´i}as del Habla}, booktitle = {Actas de las IV Jornadas en Tecnolog{\´i}as del Habla}, abstract = {En este trabajo se presenta una implementaci{\´o}n de unsistema de reconocimiento distribuido del habla en tiem-po real para su aplicaci{\´o}n en un entorno de Internet. Desa-rrollado como una aplicaci{\´o}n cliente-servidor, el clien-te hace uso del front-end est{\´a}ndar definido por la ETSI.Incluye un detector de voz para s{\´o}lo enviar informaci{\´o}ncuando el locutor habla y la transmisi{\´o}n de la informaci{\´o}nse hace de acuerdo al RFC 3557. El servidor realiza el re-conocimiento utilizando programaci{\´o}n din{\´a}mica, incluyea su vez un detector de voz y utiliza la t{\´e}cnica de mitiga-ci{\´o}n de p{\´e}rdida de paquetes propuesta en el est{\´a}ndar de laETSI. La modularidad del dise{\~n}o permite la utilizaci{\´o}n decualquier otro reconocedor sin que por ello se vean afec-tados los clientes. Las pruebas reales de funcionamientopara la aplicaci{\´o}n particular desarrollada han demostradouna alta fiabilidad en varias condiciones de transmisi{\´o}n.}, language = {es} } @article{NigelGWardVegaBaumann, author = {Nigel G. Ward, and Vega, Alejandro and Baumann, Timo}, title = {Prosodic and Temporal Features for Language Modeling for Dialog}, series = {Speech Communication}, volume = {54}, journal = {Speech Communication}, number = {2}, publisher = {ELSEVIER}, doi = {10.1016/j.specom.2011.07.009}, pages = {161 -- 174}, abstract = {If we can model the cognitive and communicative processes underlying speech, we should be able to better predict what a speaker will do. With this idea as inspiration, we examine a number of prosodic and timing features as potential sources of information on what words the speaker is likely to say next. In spontaneous dialog we find that word probabilities do vary with such features. Using perplexity as the metric, the most informative of these included recent speaking rate, volume, and pitch, and time until end of utterance. Using simple combinations of such features to augment trigram language models gave up to a 8.4\% perplexity benefit on the Switchboard corpus, and up to a 1.0\% relative reduction in word error rate (0.3\% absolute) on the Verbmobil II corpus.}, language = {en} } @incollection{LohmannEichhornBaumann, author = {Lohmann, Kris and Eichhorn, Ole and Baumann, Timo}, title = {Generating Situated Assisting Utterances to Facilitate Tactile-Map Understanding: A Prototype System}, series = {Proceedings of the Third Workshop on Speech and Language Processing for Assistive Technologies (SLPAT), Montreal, Canada, June 7-8, 2012}, booktitle = {Proceedings of the Third Workshop on Speech and Language Processing for Assistive Technologies (SLPAT), Montreal, Canada, June 7-8, 2012}, publisher = {Association for Computational Linguistics}, pages = {56 -- 65}, abstract = {Tactile maps are important substitutes for visual maps for blind and visually impaired people and the efficiency of tactile-map reading can largely be improved by giving assisting utterances that make use of spatial language. In this paper, we elaborate earlier ideas for a system that generates such utterances and present a prototype implementation based on a semantic conceptualization of the movements that the map user performs. A worked example shows the plausibility of the solution and the output that the prototype generates given input derived from experimental data.}, language = {en} } @incollection{AltenbergerNosterScholtesetal., author = {Altenberger, Igor and Noster, Ulf and Scholtes, Berthold and Ritchie, Robert O.}, title = {High Temperature Fatigue of Mechanically Surface Treated Materials}, series = {Shot peening}, booktitle = {Shot peening}, editor = {Wagner, Lothar}, publisher = {Wiley-VCH}, address = {Weinheim; [Cambridge]}, isbn = {9783527606580}, doi = {10.1002/3527606580.ch62}, pages = {483 -- 489}, abstract = {Introduction The most well known effect of mechanical surface treatments on metallic materials is the improvement in fatigue properties. It is therefore not surprising that most of the archival literature on mechanical surface treatments, such as shot peening, deep rolling and laser shock peening, deals with the effect of near-surface properties on fatigue behavior. Most of these studies, however, are confined to room temperature fatigue behavior; in comparision, the effect of mechanical surface treatment on fatigue behavior at high temperatures has been rarely investigated [1-5]. The reason for this disparity can be found in the popular belief that fatigue strength improvement by mechanical surface treatments is mainly due to the presence of compressive residual stresses, and since such stresses should anneal out at elevated temperatures, mechanical surface treatments for high temperature applications would appear questionable. However, this view may be over simplistic as there is always a possibility that the residual stresses may be at least partially stable at elevated temperatures [6]; in addition, other factors may be involved, such as the nature of the near-surface microstructure. Accordingly, it is the objective of this study to examine the role of mechanical surface treatments on the high temperature fatigue behavior of several metallic engineering materials. Moreover, it is the aim of this work to clarify what are the critical temperature "thresholds' at which near-surface microstructures and residual stresses become unstable and whether this can explain the observed fatigue behavior.}, language = {en} } @book{AltenbergerWagnerMhaedeetal., author = {Altenberger, Igor and Wagner, Lothar and Mhaede, Mansour and Juijerm, Patiphan and Noster, Ulf}, title = {Effect of Deep Rolling on the Cyclic Performance of Magnesium and Aluminium Alloys in the Temperature Range 20-250°C}, series = {The 10th International Conference on Shot Peening (ICSP), Conference Proceedings, Tokyo Japan, 15th to 18th September, 2008}, journal = {The 10th International Conference on Shot Peening (ICSP), Conference Proceedings, Tokyo Japan, 15th to 18th September, 2008}, abstract = {Mechanical surface treatments such as deep rolling or laser-shock peening can markedly affect the cyclic performance of light-weight alloys, especially if significant thick work hardened surface regions are induced. At room temperature, the cyclic deformation behaviour is strongly influenced by the nature of the induced near-surface microstructures provided that they remain stable during fatigue loading. At elevated temperatures, the stability of near-surface work hardening and local microstructures plays an even more important role since the process-induced residual compressive stresses are likely to anneal out partially or completely. This overview illustrates to what extent deep rolling can effect the cyclic performance of various wrought light alloys being fatigue loaded in stress control at ambient and elevated temperatures.}, language = {en} } @incollection{NosterAltenbergerRitchieetal., author = {Noster, Ulf and Altenberger, Igor and Ritchie, Robert O. and Scholtes, Berthold}, title = {Isothermal Fatigue Behavior and Residual Stress States of Mechanically Surface Treated Ti-6Al-4V: Laser Shock Peening vs. Deep Rolling}, series = {Shot peening}, booktitle = {Shot peening}, editor = {Wagner, Lothar}, publisher = {Wiley-VCH}, address = {Weinheim; [Cambridge]}, isbn = {9783527606580}, doi = {10.1002/3527606580.ch57}, pages = {447 -- 453}, abstract = {In this paper, the high-temperature fatigue behavior and residual stress states of a Ti-6Al-4V alloy are investigated after mechanical surface treatment. In particular, the two surface treatments investigated, laser shock peening and deep rolling, were observed to result in significantly different residual stress states. The consequent isothermal fatigue behavior at elevated temperatures, characterized using cyclic deformation curves, are discussed in terms of the stability of the near-surface work hardening and compressive residual stresses. Despite pronounced relaxation of the residual stresses, both laser shock peening and deep rolling led to a significant improvement in the cyclic deformation behavior and, hence, increased fatigue lifetimes at elevated temperatures as compared to untreated materials states.}, language = {en} } @article{NosterScholtes, author = {Noster, Ulf and Scholtes, Berthold}, title = {Isothermal strain-controlled quasi-static and cyclic deformation behavior of magnesium wrought alloy AZ31}, series = {International Journal of Materials Research / Zeitschrift f{\"u}r Metallkunde}, volume = {94}, journal = {International Journal of Materials Research / Zeitschrift f{\"u}r Metallkunde}, number = {5}, doi = {10.1515/ijmr-2003-0098}, pages = {559 -- 563}, abstract = {The low-cycle and high-cycle fatigue behavior of the Mg-base wrought alloy AZ31 is investigated in the temperature range 20- 300 °C using total-strain-controlled push - pull tests. It is shown that the mechanical properties of the material are substantially influenced by the direction dependent formation of deformation twins and resulting deformation asymmetry. As a consequence tensile mean stresses develop during total-strain-controlled fatigue tests without mean strain.}, language = {en} } @article{BitscheNosterPeterlechner, author = {Bitsche, Robert and Noster, Ulf and Peterlechner, Christian}, title = {F{\"u}gepartner schl{\"u}ssig zu Leichtbaukomponenten verbinden?}, series = {Lightweight Design}, volume = {1}, journal = {Lightweight Design}, number = {2}, publisher = {Springer}, doi = {10.1007/BF03223528}, pages = {30 -- 34}, abstract = {Kombinationen aus kraft- und formschl{\"u}ssigen Verbindungen erh{\"o}hen die Leistung bei im Hybridguss verbundenen Gussteilen mit Anbau- oder Einlegeteilen und machen separate F{\"u}geprozesse {\"u}berfl{\"u}ssig. Simulations-Methoden unterst{\"u}tzen das Design kraft- und formschl{\"u}ssiger Verbindungen. Ergebnisse eines Ausdr{\"u}ckversuchs zeigen eine relativ gute {\"U}bereinstimmung zwischen gemessenen und mittels Simulation ermittelten Kraft-Weg-Kurven.}, language = {de} } @incollection{BillingerNoster, author = {Billinger, Wolfgang and Noster, Ulf}, title = {Bauteilfertigung}, series = {Leichtbau}, booktitle = {Leichtbau}, editor = {Degischer, Hans Peter}, publisher = {Wiley-VCH}, address = {Weinheim}, isbn = {9783527628247}, doi = {10.1002/9783527628247.ch4}, pages = {247 -- 278}, language = {de} } @book{Schildbach, author = {Schildbach, Ina}, title = {Armut als Unrecht : Zur Aktualit{\"a}t von Hegels Perspektive auf Selbstverwirklichung, Armut und Sozialstaat}, publisher = {transcript}, address = {Bielefeld}, isbn = {978-3-8376-4443-2}, doi = {10.14361/9783839444436}, pages = {376 S.}, abstract = {Seit den Anf{\"a}ngen der b{\"u}rgerlichen Gesellschaft gibt es »k{\"u}nstlich produzierte Armut« (Marx) - k{\"u}nstlich, weil sie, wie Hegel analysiert hat, nicht auf nat{\"u}rlichem Mangel beruht, sondern ihre Notwendigkeit im Recht auf Eigentum liegt. Auch wusste der Philosoph: Ohne materielle Mittel gibt es keine Selbstverwirklichung. Die von Hegel theoretisch vorweggenommenen Konsequenzen wie der Zusammenhang mit geringerer Bildung, k{\"u}rzerer Lebenserwartung und politischer Apathie sind heutzutage empirisch belegt. Ina Schildbach liest Hegel neu und stellt fest: Erkenntnisbringend sind nicht nur seine Einsichten zu Ursachen und Konsequenzen der Armut - auch die staatsfunktionale Perspektive auf Armut als Problem der Obrigkeit offenbart frappierende {\"A}hnlichkeit zum heutigen Diskurs.}, language = {de} } @article{Braun, author = {Braun, Carina N.}, title = {Wenn uns unsere eigene Innovationskraft ausbremst}, series = {changement!}, journal = {changement!}, number = {2}, publisher = {HANDELSBLATT MEDIA GROUP}, address = {Hamburg}, pages = {40 -- 41}, abstract = {Unternehmen stehen unter dem stetigen Druck, innovativ zu sein. Das gelingt nur, wenn Mitarbeiterinnen und Mitarbeiter die neuen Ideen auch umsetzen. Gerade in Zeiten, in denen eine Innovation auf die n{\"a}chste folgt, wird das aber immer schwieriger. Denn die Frequenz und die Erfolgsrate von Innovationen werden von der Belegschaft bewertet und bestimmen {\"u}ber das Engagement in nachfolgenden Innovationsprozessen.}, language = {de} } @misc{Schildbach, author = {Schildbach, Ina}, title = {Rezension vom 08.06.2018 zu: Tanja Munk: Armut als Gegenstand der Ethik. Eine Rechte- und Pflichtenanalyse. Duncker \& Humblot GmbH (Berlin) 2018. ISBN 978-3-428-15075-5}, series = {sozialnet Rezensionen}, journal = {sozialnet Rezensionen}, publisher = {socialnet GmbH}, issn = {2190-9245}, abstract = {In Deutschland stellte Armut vor allem dann ein gr{\"o}ßeres {\"o}ffentliches Thema dar, wenn die Bundesregierung den neuen Bericht {\"u}ber „Lebenslagen in Deutschland", also den landl{\"a}ufig sogenannten „Armuts- und Reichtumsbericht", herausbrachte. Das hat sich in den letzten Jahren ge{\"a}ndert: Mit dem Auftreten von „Patriotische Europ{\"a}er gegen die Islamisierung des Abendlandes" (Pegida) und der „Alternative f{\"u}r Deutschland" (AfD) sind prek{\"a}re Lebenslagen in Politik und den Medien ein zentrales Thema, das vor allem unter dem Schlagwort „die Sorgen und {\"A}ngste der Menschen ernst nehmen" diskutiert wird. Im Fr{\"u}hjahr schließlich erreichte diese Debatte ihren (vorl{\"a}ufigen) H{\"o}hepunkt als Reaktion auf den Beschluss der Essener Tafel, vorerst keine Migranten/innen mehr aufzunehmen. Grund genug also, sich aus wissenschaftlicher Perspektive mit dem Ph{\"a}nomen auseinanderzusetzen. Die Dissertationsschrift „Armut als Gegenstand der Ethik. Eine Rechte- und Pflichtenanalyse" behandelt das Thema aus philosophischer Sicht. Ziel ist die Entwicklung von „Kriterien und Anforderungen […], denen jedwede Ausgestaltung eines menschenw{\"u}rdigen sozialen Minimums gerecht werden muss" (S. 12). Anhand dieser soll schließlich beurteilt werden k{\"o}nnen, „inwieweit ein in der Sozialpolitik und -gesetzgebung oder in der empirischen Sozialforschung verwendetes Armutsverst{\"a}ndnis einer kritischen moralischen {\"U}berpr{\"u}fung standh{\"a}lt oder sich als korrektur- und erg{\"a}nzungsbed{\"u}rftig erweist" (ebd.).}, language = {de} }