TY - JOUR A1 - Pierobon, Chiara T1 - European Union, civil society and local ownership in Kyrgyzstan: analysing patterns of adaptation, reinterpretation and contestation in the prevention of violent extremism (PVE) JF - Central Asian Survey N2 - In the last decade, a growing body of literature has investigated the promotion of good governance, rule of law, democracy and human rights in Central Asia through funding from the European Union (EU). Most of this research has taken an EU-centric approach and is concerned with the supply side of external democratization. As a result, little is known about how EU projects are implemented on the ground and what EU-funded civil society organizations consider to be their priorities. This article investigates the agency of such organizations in Kyrgyzstan by focusing on their contribution to one particular EU instrument: the Instrument contributing to Stability and Peace (IcSP), and its programme: Strengthening Resilience to Violence and Extremism (STRIVE). The findings offer new insights into the processes of adaptation, reinterpretation and contestation through which EU-funded organizations exercise ownership while engaging in the prevention of violent extremism (PVE). Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:898-opus4-87378 VL - 41 IS - 4 SP - 752 EP - 769 PB - Taylor & Francis ER - TY - JOUR A1 - Pierobon, Chiara T1 - EU’s support to civil society in Kazakhstan: A pilot evaluation of the social capital generated JF - Evaluation N2 - In the last decade, several studies have been devoted to the analysis of the EU’s support to civil society abroad, but only recently has scholarly attention turned to Central Asia. Most of the research in this field has adopted a macro-level perspective, concerned with the supply side of external democratization, and has examined external assistance to civil society in terms of democratization ideal types and typologies. The main contribution of this study consists of a meso-level analysis of the outcomes of the EU’s support to civil society in terms of production of social capital, conceived as the raw material of civil society itself. More precisely, the article evaluates the first wave of grants awarded to civil society organizations in Kazakhstan as part of two EU funding schemes—the European Instrument for Democracy and Human Rights and the Non-State Actors and Local Authorities in Development. The article sheds new light on the use of social capital and its two dimensions-structural and cognitive-as heuristic tools for evaluating civil society support programs. Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:898-opus4-87394 VL - 25 IS - 2 SP - 207 EP - 223 PB - Sage ER - TY - CHAP A1 - Schwägerl, Felix A1 - Uhrig, Sabrina A1 - Westfechtel, Bernhard T1 - A Graph-based Algorithm for Three-way Merging of Ordered Collections in EMF Models T2 - Science of Computer Programming N2 - In EMF models, ordered collections appear as the values of multi-valued structural features. Traditional, text-based version control systems do not sufficiently support three-way merging of ordered collections inside EMF models since they cannot guarantee a consistent result. The operation three-way merging is defined as follows: based on a common base version b, two alternative versions and were developed by copying and modifying the base version. To reconcile these changes, a merged version m is to be created as a common successor of and . In this paper, we present a graph algorithm to solve the problem of three-way merging of ordered collections in EMF models. Each version of a collection can be represented by means of a linearly ordered graph. To create the merged version, these graphs are combined to a merged collection graph using set formula. To create the merged collection, a generalized topological sort is performed on the merged collection graph. Conflicts occur in case the order of elements cannot be deduced automatically; these conflicts are resolved either interactively or by default rules. We have implemented the merge algorithm in our tool BTMerge, which performs a consistency-preserving three-way merge of versions of EMF models being instances of arbitrary Ecore models. Our implementation relies on an alternative form of representing multiple versions of a collection, namely a versioned collection graph which forms a superimposition of collection versions. The algorithm presented here is purely state-based. Matching and merging of collections are clearly separated sub-problems. Insertions and deletions performed on the elements of the collection are propagated into the merged version in a consistent way. Our algorithm makes only minimal assumptions with regard to the underlying product model and thus may be applied to ordered collections inside plain text or XML files. By taking arbitrary move operations into account, the algorithm considerably goes beyond the functionality of contemporary merge tools which cannot adequately handle move operations. KW - EMF Models KW - Model Merging KW - Graph Algorithms Y1 - 2014 U6 - https://doi.org/10.1016/j.scico.2015.02.008 VL - 113 IS - Part 1 SP - 51 EP - 81 ER - TY - CHAP A1 - Buchmann, Thomas A1 - Schwägerl, Felix T1 - Breaking the Boundaries of Meta Models and Preventing Information Loss in Model-Driven Software Product Lines T2 - Proceedings of the 11th International Conference on Evaluation of Novel Software Approaches to Software Engineering, Vol 1, 2016, Rome, Italy N2 - Model-driven software product line engineering is an integrating discipline for which tool support has become available recently. However, existing tools are still immature and have several weaknesses. Among others, limitations in variability, caused by meta model restrictions, and unintended information loss are not addressed. 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 allow for unconstrained variability, mitigating meta model restrictions by virtually extending the underlying multi-variant domain model. Surrogates prevent unintended information loss during product derivation based on a contextsensitive product analysis, which can be controlled by a declarative OCL-based language. Both extensions have been implemented in FAMILE, a model-driven product line tool that is based on EMF, provides dedicated consistency repair mechanisms, and completely automates application engineering. The added value of alternative mappings and surrogates is demonstrated by a running example. KW - Software Product Lines KW - Model-Driven Development KW - Unconstrained Variability KW - Information Loss KW - Negative Variability KW - Application Engineering Y1 - 2016 U6 - https://doi.org/10.5220/0005789100730083 SP - 83 PB - SCITEPRESS - Science and and Technology Publications ER - TY - CHAP A1 - Schwägerl, Felix A1 - Uhrig, Sabrina A1 - Westfechtel, Bernhard T1 - Model-based tool support for consistent three-way merging of EMF models T2 - ACME '13, Proceedings of the workshop on ACadeMics Tooling with Eclipse N2 - Inadequate version control has been identified as a major obstacle to the application of model-driven software engineering. In particular, sophisticated support for merging model versions is urgently needed. We present a tool for merging of EMF models which may be applied to instances of arbitrary Ecore models. The tool advances the state of the art by guaranteeing a consistent merge result. Furthermore, it detects and resolves not only context-free, but also context-sensitive conflicts. Our merge tool is model-based; it relies on EMF for its implementation. Initial experiences gained from its application confirm that the merge tool operates both accurately and efficiently. Y1 - 2013 U6 - https://doi.org/10.1145/2491279.2491281 PB - ACM CY - New York, NY, USA ER - TY - JOUR A1 - Empacher, Christina A1 - Kamps, Udo A1 - Schmiedt, Anja Bettina T1 - Prediction intervals for future Pareto record claims JF - European Actuarial Journal N2 - Stochastic models and methods for quantifying extreme events are of interest in numerous disciplines. Within this paper, statistical prediction of extreme claims or losses in insurance industry is considered based on upper record values, which describe successively largest observations in a sequence of data over time. The problem of predicting a future record value (here in particular, a future record claim) based on a sequence of previously observed record values (here, past record claims) is addressed by means of prediction intervals. For an underlying Pareto distribution, respective exact and approximate intervals from the literature are summarized and modified and new ones are developed. In a simulation study, these prediction intervals are evaluated and compared regarding coverage frequency and length. The impact of the number of observed record values as well as the choice of the Pareto distribution is discussed. In the case of a small number of record values, the use of k-th record values is considered as an option for statistical analyses to predict, e.g., second largest record claims. Selected prediction methods are applied to several real data sets, which turn out to perform well and to be able to capture the magnitude of future record claims, even for fairly small numbers of record observations. For comparison, generalized Pareto distributions are fitted to real data sets and a corresponding point predictor as well as a respective upper prediction interval for the next record to appear are derived and evaluated. Y1 - 2024 U6 - https://doi.org/10.1007/s13385-024-00397-1 SN - 2190-9733 VL - 15 IS - 1 SP - 163 EP - 197 PB - Springer ER - TY - JOUR A1 - Heckner, Markus A1 - Schneidermeier, Tim A1 - Hastreiter, Isabella A1 - Wolff, Christian T1 - Der Newbie, der Fortgeschrittene und der Power-User. Warum es nicht reicht, “einfach mal die Nutzer zu fragen” JF - i-com N2 - Innerbetriebliche Software entwickelt sich häufig über Jahre hinweg inkrementell weiter, sammelt so Schritt für Schritt Funktionen an und verliert an Übersichtlichkeit. Soll diese Software hinsichtlich ihrer Gebrauchstauglichkeit optimiert werden, müssen aus Sicht eines externen Usability-Beraters zunächst die Domäne des Kunden verstanden und die Arbeitsprozesse analysiert werden. In der Analyse muss insbesondere der Umgang unterschiedlicher Nutzergruppen mit der Software berücksichtigt werden, um fundierte Neuvorschläge in einem Redesign erarbeiten zu können. In diesem Erfahrungsbericht beschreiben wir anhand eines konkreten Praxisbeispiels Eigenschaften von Nut-zergruppen und deren Einfluss auf die Analyse, und warum es nicht reicht, die Nutzer „einfach mal zu fragen, wie sie die Software denn finden". Y1 - 2012 U6 - https://doi.org/10.1524/icom.2012.0038 VL - 11 IS - 3 SP - 47 EP - 50 PB - DeGruyter ER - TY - JOUR A1 - Heinrich, Bernd A1 - Zellner, Gregor A1 - Leist, Susanne T1 - Service integrators in business networks - The importance of relationship values JF - Electronic Markets N2 - To realise the potentials of CRM (customer relationship management), relationship-specific processes need to be designed and implemented in companies. This is all the more important and complicated in business networks where two or more actors collaborate to serve the customers. A good collaboration within business networks is the basis for understanding the customer process and identifying customer needs. But, even in these days of customer orientation, transaction orientation is still a matter of strong interest, and the following questions remain to be answered: What is the difference between relationship-oriented processes and transaction-oriented processes, and how can relationship-oriented processes be designed for a business network? The authors give first answers to both questions by using a systematic, goal-oriented specialisation of generic actions. To give an example, one relationship-oriented process will be designed and specified for a certain customer process in the course of this paper. Y1 - 2011 U6 - https://doi.org/10.1007/s12525-011-0075-x VL - 21 IS - 4 SP - 215 EP - 235 PB - Springer ER - TY - CHAP A1 - Griesberger, Philipp A1 - Leist, Susanne A1 - Zellner, Gregor T1 - Analysis of techniques for business process improvement T2 - 19th European Conference on Information Systems, ECIS 2011, Helsinki, Finland, June 9-11, 2011 N2 - This paper is about identifying and analyzing techniques that can be used in a business process improvement (BPI) situation. To determine suitable techniques, the term BPI is defined and criteria are derived to analyze the usability of the selected techniques. Over 300 techniques from various improvement methods were reduced to those techniques which can be applied to help improve business processes and, in particular, to support the act of improvement. Identifying these techniques is helpful, because in most cases the act of improvement is a black box that lacks guidelines or structured procedures. In our research we developed an evaluation scheme to analyze the usability of BPI techniques and give hints about how to select a suitable technique for a certain improvement situation. Y1 - 2011 UR - https://www.researchgate.net/publication/221408836_Analysis_of_techniques_for_business_process_improvement ER - TY - JOUR A1 - Schöpf, Nicolas T1 - Der Qualifikationsrahmen als Weg in mehr Wettbewerb? Potenziale und Herausforderungen europäischer Bildungspolitik für die Erwachsenenbildung JF - DIE-Zeitschrift für Erwachsenenbildung N2 - Der vorliegende Beitrag sondiert Potenziale und Gefährdungen, die für die Erwachsenenbildung aus dem Prozess der Europäisierung von Bildungspolitik resultieren. Die zugehörigen strukturellen Wirkmechanismen im Spannungsfeld von Kooperation und Konkurrenz belegt der Text am Beispiel des Europäischen Qualifikationsrahmens (EQR). Mit dem Zweck einer besseren Vergleichbarkeit von Bildungssystemen und Bildungsgängen geht vom EQR unweigerlich der Impuls zu mehr Wettbewerb einher, international wie national. Der Autor ordnet diese Dynamik in die übergreifenden bildungspolitischen Prozesse ein, die mit Bolgna, Lissabon und Kopenhagen assoziiert werden. KW - Auswirkung KW - Bildungspolitik KW - Europa KW - Europäischer Qualifikationsrahmen KW - Kompetenz KW - Leistungsmessung KW - Qualifikation KW - Weiterbildung Y1 - 2010 U6 - https://doi.org/10.3278/DIE1002W045 SN - 0945-3164 IS - 2 SP - 45 EP - 48 PB - Bertelsmann CY - Bielefeld ER - TY - JOUR A1 - Schöpf, Nicolas T1 - Stiefkind Weiterbildung? Anmerkungen zur Diskussion um die Europäisierung der Berufsbildung JF - Wirtschaft und Berufserziehung : W & B ; Zeitschrift für Berufsbildung und Bildungspolitik N2 - ECVET wird gegenwärtig hauptsächlich im Zusammenhang mit der Verbesserung und Flexibilisierung des Ausbildungssystems diskutiert, während die berufliche Weiterbildung noch eine untergeordnete Rolle spielt. Der Beitrag beleuchtet Anknüpfungspunkte und Handlungsfelder für die berufliche Weiterbildung. Als Handlungsfelder rücken Transparenz und Vergleichbarkeit der Weiterbildungsergebnisse und Transparenz und Vergleichbarkeit ausländischer Qualifikationen in den Blick. ECVET könnte heterogene Prozesse der Weiterbildung angesichts standardisiert beschriebener Lernergebnisse vergleichbar und erzielte Kompetenzen über regionale und trägerbezogene Grenzen hinweg verwertbar machen. (BIBB-Doku). KW - Berufsausbildung KW - Berufsbildung KW - Europäische Union KW - Kreditpunktesystem KW - Lernergebnis KW - Lernergebnisorientierung KW - Weiterbildung Y1 - 2009 SN - 0341-339X VL - 61 IS - 10 SP - 28 EP - 30 PB - Ziel CY - Augsburg ER - TY - JOUR A1 - Schöpf, Nicolas T1 - Lernergebnisse – Schlüssel für die Verständigung in Europa? Perspektiven für die Erwachsenen- und Weiterbildung JF - Bildung für Europa : Journal der Nationalen Agentur beim Bundesinstitut für Berufsbildung Y1 - 2011 SN - 1616-5837 IS - 15 SP - 33 EP - 34 PB - Nationale Agentur beim Bundesinstitut für Berufsbildung ER - TY - JOUR A1 - Schöpf, Nicolas T1 - Die Qual der Wahl. Fragen der Weiterbildungsorganisation und des Einsatzes von eLearning in Unternehmen JF - IT-Mittelstand Y1 - 2005 IS - 12 SP - 54 EP - 58 PB - MEDIENHAUS Verlag GmbH ER - TY - JOUR A1 - Schöpf, Nicolas T1 - Anstöße aus Europa JF - Personal Y1 - 2009 IS - 4 SP - 18 EP - 20 ER - TY - JOUR A1 - Schöpf, Nicolas T1 - Grenzkontrollen. Erleichtert die Öffnung von Bildungswegen kontinuierliches Lernen? JF - Berufs- und Wirtschaftspädagogik Online N2 - "Individuelle Bildungsverläufe sind nur zu einem Teil das Ergebnis aktiver persönlicher Planung und Steuerung. Oftmals sind sie das Resultat von Selektion, systemischen Schranken und Abschottungen zwischen Teilen des Bildungssystems. Die Grenzen, die es auf individuellen Bildungspfaden zu überschreiten gilt, sind vielfältig: Sie existieren zwischen Jahrgangsklassen, zwischen Grund- und weiterführenden Schulen bis hin zur Hochschule oder zwischen Übergangssystem, beruflicher und akademischer Bildung. Gegenwärtig verbindet sich insbesondere mit Ansätzen der Europäisierung der Aus- und Weiterbildung die Hoffnung, Bildungswege zu öffnen und damit die Möglichkeiten lebenslanges Lernen zu erweitern: Die Rede ist dabei von einer Verbesserung der transnationalen Mobilität der Lernenden und der Durchlässigkeit nationaler Bildungssysteme. Es geht dabei also um die Anerkennung von Lernergebnissen, die im Ausland erzielt wurden, und ihre Anrechnung auf deutsche Bildungsgänge und um die Anerkennung und Anrechnung von Lernergebnissen zwischen Subsystemen der Bildung in Deutschland. Die Debatte um Durchlässigkeit macht dabei auf mehrere Aspekte aufmerksam: Die Frage, unter welchen Gesichtspunkten Anerkennung diskutiert wird, verweist unter anderem auf das klassische Verhältnis von Qualifizierung und Bildung, von Speziellem und Allgemeinem der Bildung. Damit verknüpft stellt sich zudem die Frage, inwieweit auch das Thema Durchlässigkeit eine Rolle für Entwicklungen spielt, die gegenwärtig als Neuvermessung des Bildungssystems diskutiert werden." (Autorenreferat; BIBB-Doku). KW - Anerkennung KW - Anrechnung KW - Auslandsaufenthalt KW - Berufsbildungssystem KW - Bildungsabschluss KW - Bildungssystem KW - Durchlässigkeit KW - Mobilität Y1 - 2010 UR - http://www.bwpat.de/ausgabe18/schoepf_bwpat18.pdf SN - 0945-3164 IS - 18 PB - bwp ER - TY - JOUR A1 - Zürner, Christian T1 - Religiöse Bildung in der säkularisierten Gesellschaft. Grundsatzüberlegungen mit Bezug auf den Philosophen Jürgen Habermas JF - Freies Christentum : auf der Suche nach neuen Wegen Y1 - 2007 SN - 0931-3834 VL - 59 IS - 3 SP - 67 EP - 69 ER - TY - JOUR A1 - Thieme, Dorothea A1 - Langer, G. A1 - Behrens, Johann T1 - Das Wissen Pflegender zur Kompressionstherapie - Studie zur Therapie der akuten tiefen Beinvenenthrombose JF - Pflegezeitschrift Y1 - 2009 VL - 62 IS - 5 SP - 296 EP - 301 ER - TY - JOUR A1 - Thieme, Dorothea A1 - Landenberger, M. T1 - Therapie der akuten tiefen Beinvenenthrombose - eine Literaturrecherche: Verbandtechniken im Vergleich JF - Pflegezeitschrift Y1 - 2009 VL - 62 IS - 4 SP - 206 EP - 209 ER - TY - JOUR A1 - Thieme, Dorothea A1 - Langer, G. A1 - Behrens, Johann T1 - Befragung Pflegender zur Kompressionstherapie bei akuter tiefer Beinvenenthrombose JF - Pflegezeitschrift Y1 - 2010 VL - 63 IS - 3 SP - 162 EP - 167 ER - TY - JOUR A1 - Zürner, Christian T1 - ... geheimnisvolle Dinge, die ich in Worten nicht aufsetzen kann : Ästhetik in der religiösen Bildung JF - Evangelische Aspekte Y1 - 2006 VL - 16 IS - 1 SP - 27 EP - 30 ER - TY - JOUR A1 - Zürner, Christian T1 - Auf der Suche nach Identität… JF - Arnoldshainer Akzente : Nachrichten aus der Evangelischen Akademie Y1 - 2009 SN - 0934-7119 IS - 1 ER - TY - JOUR A1 - Schöpf, Nicolas T1 - Mit Kompetenzpässen die Talente ihrer Mitarbeiter kennen und entwickeln JF - Personal im Fokus Y1 - 2013 IS - 8 SP - 30 EP - 32 ER - TY - JOUR A1 - Schöpf, Nicolas A1 - Iseler, K. A1 - Sausele, I. T1 - Persistenz und Verschwinden. Pädagogische Organisationen im historischen Kontext JF - Zeitschrift für Soziologie der Erziehung und Sozialisation Y1 - 2007 SN - 1436-1957 VL - 27 IS - 4 SP - 442 EP - 447 PB - Beltz Juventa ER - TY - JOUR A1 - Ott, Christian A1 - Rosengarth, Katharina A1 - Doenitz, Christian A1 - Hoehne, Julius A1 - Wendl, Christina A1 - Dodoo-Schittko, Frank A1 - Lang, Elmar Wolfgang A1 - Schmidt, Nils Ole A1 - Goldhacker, Markus T1 - Preoperative Assessment of Language Dominance through Combined Resting-State and Task-Based Functional Magnetic Resonance Imaging JF - Journal of personalized medicine N2 - Brain lesions in language-related cortical areas remain a challenge in the clinical routine. In recent years, the resting-state fMRI (RS-fMRI) was shown to be a feasible method for preoperative language assessment. The aim of this study was to examine whether language-related resting-state components, which have been obtained using a data-driven independent-component-based identification algorithm, can be supportive in determining language dominance in the left or right hemisphere. Twenty patients suffering from brain lesions close to supposed language-relevant cortical areas were included. RS-fMRI and task-based (TB-fMRI) were performed for the purpose of preoperative language assessment. TB-fMRI included a verb generation task with an appropriate control condition (a syllable switching task) to decompose language-critical and language-supportive processes. Subsequently, the best fitting ICA component for the resting-state language network (RSLN) referential to general linear models (GLMs) of the TB-fMRI (including models with and without linguistic control conditions) was identified using an algorithm based on the Dice index. Thereby, the RSLNs associated with GLMs using a linguistic control condition led to significantly higher laterality indices than GLM baseline contrasts. LIs derived from GLM contrasts with and without control conditions alone did not differ significantly. In general, the results suggest that determining language dominance in the human brain is feasible both with TB-fMRI and RS-fMRI, and in particular, the combination of both approaches yields a higher specificity in preoperative language assessment. Moreover, we can conclude that the choice of the language mapping paradigm is crucial for the mentioned benefits. KW - resting-state fMRI KW - task-based fMRI KW - brain mapping KW - language assessment KW - data-driven analysis Y1 - 2021 U6 - https://doi.org/10.3390/jpm11121342 VL - 11 IS - 12 PB - MDPI ER - TY - GEN A1 - Ott, Christian A1 - Rosengarth, K. A1 - Doenitz, Christian A1 - Hoehne, Julius A1 - Wendl, C. A1 - Dodoo-Schittko, Frank A1 - Lang, Elmar Wolfgang A1 - Schmidt, Nils Ole A1 - Goldhacker, Markus T1 - Preoperative assessment of language dominance through combined resting-state and task-based functional magnetic resonance imaging T2 - Brain and Spine N2 - Background: Brain lesions in language-related cortical areas remain a challenge in the clinical routine. In recent years the resting-state fMRI (rs-fMRI) was shown to be a feasible method for preoperative language assessment. The aim of this study was to examine whether language-related resting-state components, which have been obtained using a data-driven independent-component-based identification algorithm, can be supportive in determining language dominance in the left or right hemisphere. Methods: Twenty patients suffering from brain lesions close to supposed language relevant cortical areas were included. Rs-fMRI and task-based (tb-fMRI) were performed for the purpose of preoperative language assessment. Tb-fMRI included a verb generation task with an appropriate control condition (a syllable switching task) to decompose language critical and language supportive processes. Subsequently, the best fitting ICA component for the resting-state language network (RSLN) referential to general linear models (GLMs) of the tb-fMRI (including models with and without linguistic control conditions) was identified using an algorithm based on the Dice-index. Results: The RSLNs associated with GLMs using a linguistic control condition led to significantly higher laterality indices than GLM baseline contrasts. LIs derived from GLM contrasts with and without control conditions alone did not differ significantly. Conclusion: In general, the results suggest that determining language dominance in the human brain is feasible both with tb-fMRI and rs-fMRI, and in particular, the combination of both approaches yields a higher specificity in preoperative language assessment. Moreover, we can conclude that the choice of the language mapping paradigm is crucial for the mentioned benefits. Y1 - 2021 U6 - https://doi.org/10.1016/j.bas.2021.100523 VL - 1 IS - Suppl. 2 PB - Elsevier ER - TY - JOUR A1 - Goldhacker, Markus A1 - Tomé, Ana Maria A1 - Greenlee, Mark W. A1 - Lang, Elmar Wolfgang T1 - Frequency-Resolved Dynamic Functional Connectivity Reveals Scale-Stable Features of Connectivity-States JF - Frontiers in Human Neuroscience N2 - Investigating temporal variability of functional connectivity is an emerging field in connectomics. Entering dynamic functional connectivity by applying sliding window techniques on resting-state fMRI (rs-fMRI) time courses emerged from this topic. We introduce frequency-resolved dynamic functional connectivity (frdFC) by means of multivariate empirical mode decomposition (MEMD) followed up by filter-bank investigations. In general, we find that MEMD is capable of generating time courses to perform frdFC and we discover that the structure of connectivity-states is robust over frequency scales and even becomes more evident with decreasing frequency. This scale-stability varies with the number of extracted clusters when applying k-means. We find a scale-stability drop-off from k = 4 to k = 5 extracted connectivity-states, which is corroborated by null-models, simulations, theoretical considerations, filter-banks, and scale-adjusted windows. Our filter-bank studies show that filter design is more delicate in the rs-fMRI than in the simulated case. Besides offering a baseline for further frdFC research, we suggest and demonstrate the use of scale-stability as a possible quality criterion for connectivity-state and model selection. We present first evidence showing that connectivity-states are both a multivariate, and a multiscale phenomenon. A data repository of our frequency-resolved time-series is provided. Y1 - 2018 U6 - https://doi.org/10.3389/fnhum.2018.00253 SN - 1662-5161 VL - 12 SP - 1 EP - 16 PB - Frontiers Research Foundation CY - Lausanne ER - TY - JOUR A1 - Fellner, Marie-Christin A1 - Volberg, Gregor A1 - Wimber, Maria A1 - Goldhacker, Markus A1 - Greenlee, Mark W. A1 - Hanslmayr, Simon T1 - Spatial mnemonic encoding: Theta power decreases and medial temporal lobe BOLD increases co-occur during the usage of the method of loci JF - eNeuro N2 - The method of loci is one, if not the most, efficient mnemonic encoding strategy. This spatial mnemonic combines the core cognitive processes commonly linked to medial temporal lobe (MTL) activity: spatial and associative memory processes. During such processes, fMRI studies consistently demonstrate MTL activity, while electrophysiological studies have emphasized the important role of theta oscillations (3–8 Hz) in the MTL. However, it is still unknown whether increases or decreases in theta power co-occur with increased BOLD signal in the MTL during memory encoding. To investigate this question, we recorded EEG and fMRI separately, while human participants used the spatial method of loci or the pegword method, a similarly associative but nonspatial mnemonic. The more effective spatial mnemonic induced a pronounced theta power decrease source localized to the left MTL compared with the nonspatial associative mnemonic strategy. This effect was mirrored by BOLD signal increases in the MTL. Successful encoding, irrespective of the strategy used, elicited decreases in left temporal theta power and increases in MTL BOLD activity. This pattern of results suggests a negative relationship between theta power and BOLD signal changes in the MTL during memory encoding and spatial processing. The findings extend the well known negative relation of alpha/beta oscillations and BOLD signals in the cortex to theta oscillations in the MTL. KW - EEG KW - fMRI KW - memory encoding KW - method of loci KW - mnemonics KW - theta oscillations Y1 - 2016 U6 - https://doi.org/10.1523/ENEURO.0184-16.2016 SN - 2373-2822 VL - 3 IS - 6 SP - 1 EP - 16 PB - Society for Neuroscience CY - Washington, DC ER - TY - JOUR A1 - Goldhacker, Markus A1 - Keck, P. A1 - Igel, A. A1 - Lang, Elmar Wolfgang A1 - Tomé, Ana Maria T1 - A multi-variate blind source separation algorithm JF - Computer Methods and Programs in Biomedicine N2 - Background and objective The study follows the proposal of decomposing a given data matrix into a product of independent spatial and temporal component matrices. A multi-variate decomposition approach is presented, based on an approximate diagonalization of a set of matrices computed using a latent space representation. Methods The proposed methodology follows an algebraic approach, which is common to space, temporal or spatiotemporal blind source separation algorithms. More specifically, the algebraic approach relies on singular value decomposition techniques, which avoids computationally costly and numerically instable matrix inversion. The method is equally applicable to correlation matrices determined from second order correlations or by considering fourth order correlations. Results The resulting algorithms are applied to fMRI data sets either to extract the underlying fMRI components or to extract connectivity maps from resting state fMRI data collected for a dynamic functional connectivity analysis. Intriguingly, our algorithm shows increased spatial specificity compared to common approaches, while temporal precision stays similar. Conclusion The study presents a novel spatiotemporal blind source separation algorithm, which is both robust and avoids parameters that are difficult to fine tune. Applied on experimental data sets, the new method yields highly confined and focused areas with least spatial extent in the retinotopy case, and similar results in the dynamic functional connectivity analyses compared to other blind source separation algorithms. Therefore, we conclude that our novel algorithm is highly competitive and yields results, which are superior or at least similar to existing approaches. KW - Blind source separation KW - Independent component analysis KW - fMRI KW - Resting state KW - Retinotopy KW - Spatio temporal Y1 - 2017 U6 - https://doi.org/10.1016/j.cmpb.2017.08.019 SN - 1872-7565 SN - 0169-2607 VL - 151 SP - 91 EP - 99 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Wein, Simon A1 - Deco, Gustavo A1 - Tomé, Ana Maria A1 - Goldhacker, Markus A1 - Malloni, Wilhelm M. A1 - Greenlee, Mark W. A1 - Lang, Elmar Wolfgang T1 - Brain Connectivity Studies on Structure-Function Relationships: A Short Survey with an Emphasis on Machine Learning JF - Computational intelligence and neuroscience N2 - This short survey reviews the recent literature on the relationship between the brain structure and its functional dynamics. Imaging techniques such as diffusion tensor imaging (DTI) make it possible to reconstruct axonal fiber tracks and describe the structural connectivity (SC) between brain regions. By measuring fluctuations in neuronal activity, functional magnetic resonance imaging (fMRI) provides insights into the dynamics within this structural network. One key for a better understanding of brain mechanisms is to investigate how these fast dynamics emerge on a relatively stable structural backbone. So far, computational simulations and methods from graph theory have been mainly used for modeling this relationship. Machine learning techniques have already been established in neuroimaging for identifying functionally independent brain networks and classifying pathological brain states. This survey focuses on methods from machine learning, which contribute to our understanding of functional interactions between brain regions and their relation to the underlying anatomical substrate. KW - Brain Mapping KW - Brain/diagnostic imaging KW - Diffusion Tensor Imaging KW - Machine Learning KW - Magnetic Resonance Imaging KW - Nerve Net/diagnostic imaging KW - Neural Pathways/diagnostic imaging KW - Structure-Activity Relationship Y1 - 2021 U6 - https://doi.org/10.1155/2021/5573740 SP - 1 EP - 31 PB - Hindawi ER - TY - CHAP A1 - Wostmann, Rene A1 - Schlunder, Philipp A1 - Temme, Fabian A1 - Klinkenberg, Ralf A1 - Kimberger, Josef A1 - Spichtinger, Andrea A1 - Goldhacker, Markus A1 - Deuse, Jochen T1 - Conception of a Reference Architecture for Machine Learning in the Process Industry T2 - 2020 IEEE International Conference on Big Data (Big Data): 10.12.2020 - 13.12.2020 Atlanta, GA, USA N2 - The increasing global competition demands continuous optimization of products and processes from companies in the process industry. Where conventional methods of Lean Management and Six Sigma reach their limits, new opportunities and challenges arise through increasing connectivity in the Industrial Internet of Things and machine learning. The majority of industrial projects do not reach the deployment or are isolated solutions, as the structures for data integration, training, deployment and maintenance of models are not established. This paper presents the conception of a reference architecture for machine learning in the process industry to support companies in implementing their own specific structures. The focus is on the development process and an exemplary implementation in the brewing industry. KW - Big data KW - Companies KW - Industrial Internet of Things KW - Industries KW - Machine learning KW - Optimization KW - process industry KW - Production KW - Reference architecture KW - Six sigma KW - Training Y1 - 2020 SN - 978-1-7281-6251-5 U6 - https://doi.org/10.1109/bigdata50022.2020.9378290 SP - 1726 EP - 1735 PB - IEEE ER - TY - JOUR A1 - Plank, Tina A1 - Rosengarth, Katharina A1 - Schmalhofer, Carolin A1 - Goldhacker, Markus A1 - Brandl-Rühle, Sabine A1 - Greenlee, Mark W. T1 - Perceptual learning in patients with macular degeneration JF - Frontiers in psychology N2 - Patients with age-related macular degeneration (AMD) or hereditary macular dystrophies (JMD) rely on an efficient use of their peripheral visual field. We trained eight AMD and five JMD patients to perform a texture-discrimination task (TDT) at their preferred retinal locus (PRL) used for fixation. Six training sessions of approximately one hour duration were conducted over a period of approximately 3 weeks. Before, during and after training twelve patients and twelve age-matched controls (the data from two controls had to be discarded later) took part in three functional magnetic resonance imaging (fMRI) sessions to assess training-related changes in the BOLD response in early visual cortex. Patients benefited from the training measurements as indexed by significant decrease (p = 0.001) in the stimulus onset asynchrony (SOA) between the presentation of the texture target on background and the visual mask, and in a significant location specific effect of the PRL with respect to hit rate (p = 0.014). The following trends were observed: (i) improvement in Vernier acuity for an eccentric line-bisection task; (ii) positive correlation between the development of BOLD signals in early visual cortex and initial fixation stability (r = 0.531); (iii) positive correlation between the increase in task performance and initial fixation stability (r = 0.730). The first two trends were non-significant, whereas the third trend was significant at p = 0.014, Bonferroni corrected. Consequently, our exploratory study suggests that training on the TDT can enhance eccentric vision in patients with central vision loss. This enhancement is accompanied by a modest alteration in the BOLD response in early visual cortex. KW - perceptual learning KW - fMRI BOLD KW - cortical plasticity KW - visual cortex KW - macular degeneration Y1 - 2014 U6 - https://doi.org/10.3389/fpsyg.2014.01189 SN - 1664-1078 VL - 5 SP - 1 EP - 14 PB - Frontiers Research Foundation CY - Lausanne ER - TY - GEN A1 - Greenlee, Mark W. A1 - Anstis, Stuart A1 - Rosengarth, Katharina A1 - Goldhacker, Markus A1 - Brandl-Rühle, Sabine A1 - Plank, Tina T1 - Neural correlates of perceptual filling-in: fMRI evidence in the foveal projection zone of patients with central scotoma T2 - Journal of Vision / Vision Sciences Society Annual Meeting Abstract N2 - Patients with juvenile retinal dystrophy often report that they are unaware of their central scotoma, suggesting the presence of perceptual filling-in. We used functional Magnetic Resonance Imaging (fMRI) to determine possible neural correlates of perceptual filling-in in patients with retinal distrophy and clinically established central scotoma in both eyes. The data of 5 patients (Stargardt disease, cone-rod dystrophy; mean age 45 yrs; scotoma diameter 10-20°) and of 5 normally sighted controls were analyzed. Fixation behaviour and perimetry were measured with a Nidek microperimeter. Magnetic resonance imaging was performed using a Siemens 3T Allegra scanner. We stimulated the central visual field (30 deg) with a vertically oriented, low spatial frequency (1 c/deg) high-contrast sinewave grating that was either a) continuous, or b) was interrupted by a central grey disk. The disk was either slightly larger than the scotoma (detectable on 75% of trials) or slightly smaller (detectable on 25% of trials). To control for attention, an eccentric fixation task was performed during scanning. Data were analyzed using SPM8 (GLM with ROI analysis to obtain percent signal change for foveal projection zone). Results: for all patients, the BOLD signal in the foveal projection area was significantly higher for the small disk (i.e., condition leading to complete filling-in) than for the large disk (i.e., no filling-in). This effect was absent in the control subjects. Our findings support the existence of an active neural process that leads to filling-in in patients with central visual field scotomata. Y1 - 2012 U6 - https://doi.org/10.1167/12.9.1303 SN - 1534-7362 VL - 12 IS - 9 PB - ARVO ER - TY - JOUR A1 - Goldhacker, Markus A1 - Rosengarth, Katharina A1 - Plank, Tina A1 - Greenlee, Mark W. T1 - The effect of feedback on performance and brain activation during perceptual learning JF - Vision research N2 - We investigated the role of informative feedback on the neural correlates of perceptual learning in a coherent-motion detection paradigm. Stimulus displays consisted of four patches of moving dots briefly (500 ms) presented simultaneously, one patch in each visual quadrant. The coherence level was varied in the target patch from near threshold to high, while the other three patches contained only noise. The participants judged whether coherent motion was present or absent in the target patch. To guarantee central fixation, a secondary RSVP digit-detection task was performed at fixation. Over six training sessions subjects learned to detect coherent motion in a predefined quadrant (i.e., the learned location). Half of our subjects were randomly assigned to the feedback group, where they received informative feedback after each response during training, whereas the other group received non-informative feedback during training that a response button was pressed. We investigated whether the presence of informative feedback during training had an influence on the learning success and on the resulting BOLD response. Behavioral data of 24 subjects showed improved performance with increasing practice. Informative feedback promoted learning for motion displays with high coherence levels, whereas it had little effect on learning for displays with near-threshold coherence levels. Learning enhanced fMRI responses in early visual cortex and motion-sensitive area MT+ and these changes were most pronounced for high coherence levels. Activation in the insular and cingulate cortex was mainly influenced by coherence level and trained location. We conclude that feedback modulates behavioral performance and, to a lesser extent, brain activation in areas responsible for monitoring perceptual learning. KW - Perceptual learning KW - Functional MRI KW - Feedback KW - Coherent motion detection Y1 - 2014 U6 - https://doi.org/10.1016/j.visres.2013.11.010 SN - 1878-5646 SN - 0042-6989 VL - 99 SP - 99 EP - 110 PB - Elsevier CY - Amsterdam ER - TY - CHAP A1 - Wein, S. A1 - Tomé, Ana Maria A1 - Goldhacker, Markus A1 - Greenlee, Mark W. A1 - Lang, Elmar Wolfgang T1 - Hybridizing EMD with cICA for fMRI Analysis of Patient Groups T2 - 2019 41st Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC): 23-27 July 2019, Berlin, Germany N2 - Independent component analysis (ICA), as a data driven method, has shown to be a powerful tool for functional magnetic resonance imaging (fMRI) data analysis. One drawback of this multivariate approach is, that it is naturally not convenient for analysis of group studies. Therefore various techniques have been proposed in order to overcome this limitation of ICA. In this paper a novel ICA based work-flow for extracting resting state networks from fMRI group studies is proposed. An empirical mode decomposition (EMD) is used to generate reference signals in a data driven manner, which can be incorporated into a constrained version of ICA (cICA), what helps to overcome the inherent ambiguities. The results of the proposed workflow are then compared to those obtained by a widely used group ICA approach. It is demonstrated that intrinsic modes, extracted by EMD, are suitable to serve as references for cICA to obtain typical resting state patterns, which are consistent over subjects. This novel processing pipeline makes it transparent for the user, how comparable activity patterns across subjects emerge, and also the trade-off between similarity across subjects and preserving individual features can be well adjusted and adapted for different requirements in the new work-flow. KW - biomedical MRI KW - data analysis KW - independent component analysis KW - medical image processing Y1 - 2019 U6 - https://doi.org/10.1109/EMBC.2019.8856355 SP - 194 EP - 197 PB - IEEE ER - TY - JOUR A1 - Goldhacker, Markus A1 - Fellner, Marie-Christin A1 - Volberg, G. A1 - Mullinger, K. J. A1 - Greenlee, Mark W. A1 - Hanslmayr, Simon T1 - Spurious correlations in simultaneous EEG-fMRI driven by in-scanner movement JF - NeuroImage N2 - Simultaneous EEG-fMRI provides an increasingly attractive research tool to investigate cognitive processes with high temporal and spatial resolution. However, artifacts in EEG data introduced by the MR scanner still remain a major obstacle. This study, employing commonly used artifact correction steps, shows that head motion, one overlooked major source of artifacts in EEG-fMRI data, can cause plausible EEG effects and EEG–BOLD correlations. Specifically, low-frequency EEG (< 20 Hz) is strongly correlated with in-scanner movement. Accordingly, minor head motion (< 0.2 mm) induces spurious effects in a twofold manner: Small differences in task-correlated motion elicit spurious low-frequency effects, and, as motion concurrently influences fMRI data, EEG–BOLD correlations closely match motion-fMRI correlations. We demonstrate these effects in a memory encoding experiment showing that obtained theta power (~ 3–7 Hz) effects and channel-level theta–BOLD correlations reflect motion in the scanner. These findings highlight an important caveat that needs to be addressed by future EEG-fMRI studies. Y1 - 2016 U6 - https://doi.org/10.1016/j.neuroimage.2016.03.031 VL - 133 IS - June SP - 354 EP - 366 PB - Elsevier ER - TY - JOUR A1 - Wein, Simon A1 - Tomé, Ana Maria A1 - Goldhacker, Markus A1 - Greenlee, Mark W. A1 - Lang, Elmar Wolfgang T1 - A Constrained ICA-EMD Model for Group Level fMRI Analysis JF - Frontiers in Neuroscience N2 - Independent component analysis (ICA), being a data-driven method, has been shown to be a powerful tool for functional magnetic resonance imaging (fMRI) data analysis. One drawback of this multivariate approach is that it is not, in general, compatible with the analysis of group data. Various techniques have been proposed to overcome this limitation of ICA. In this paper, a novel ICA-based workflow for extracting resting-state networks from fMRI group studies is proposed. An empirical mode decomposition (EMD) is used, in a data-driven manner, to generate reference signals that can be incorporated into a constrained version of ICA (cICA), thereby eliminating the inherent ambiguities of ICA. The results of the proposed workflow are then compared to those obtained by a widely used group ICA approach for fMRI analysis. In this study, we demonstrate that intrinsic modes, extracted by EMD, are suitable to serve as references for cICA. This approach yields typical resting-state patterns that are consistent over subjects. By introducing these reference signals into the ICA, our processing pipeline yields comparable activity patterns across subjects in a mathematically transparent manner. Our approach provides a user-friendly tool to adjust the trade-off between a high similarity across subjects and preserving individual subject features of the independent components. Y1 - 2020 U6 - https://doi.org/10.3389/fnins.2020.00221 SN - 1662-453X SN - 1662-4548 VL - 14 SP - 1 EP - 10 PB - frontiers ER - TY - JOUR A1 - Goldhacker, Markus A1 - Al-Subari, Karema A1 - Al-Baddai, Saad A1 - Tomé, Ana Maria A1 - Faltermeier, Rupert A1 - Lang, Elmar Wolfgang T1 - EMDLAB: A toolbox for analysis of single-trial EEG dynamics using empirical mode decomposition JF - Journal of Neuroscience Methods N2 - Background: Empirical mode decomposition (EMD) is an empirical data decomposition technique. Recently there is growing interest in applying EMD in the biomedical field. New method: EMDLAB is an extensible plug-in for the EEGLAB toolbox, which is an open software environment for electrophysiological data analysis. Results: EMDLAB can be used to perform, easily and effectively, four common types of EMD: plain EMD, ensemble EMD (EEMD), weighted sliding EMD (wSEMD) and multivariate EMD (MEMD) on EEG data. In addition, EMDLAB is a user-friendly toolbox and closely implemented in the EEGLAB toolbox. Comparison with existing methods: EMDLAB gains an advantage over other open-source toolboxes by exploiting the advantageous visualization capabilities of EEGLAB for extracted intrinsic mode functions (IMFs) and Event-Related Modes (ERMs) of the signal. Conclusions: EMDLAB is a reliable, efficient, and automated solution for extracting and visualizing the extracted IMFs and ERMs by EMD algorithms in EEG study. Y1 - 2015 U6 - https://doi.org/10.1016/j.jneumeth.2015.06.020 VL - 253 IS - September SP - 193 EP - 205 PB - Elsevier CY - AMsterdam ER - TY - CHAP A1 - Goldhacker, Markus A1 - Tomé, Ana Maria A1 - Greenlee, Mark W. A1 - Lang, Elmar Wolfgang T1 - Early meta-level: deeper understanding of connectivity-states and consequences for state definition T2 - 21st Annual Meeting of the Organization for Human Brain Mapping, June 14-18, 2015, Honolulu, Hawaii Y1 - 2015 U6 - https://doi.org/10.13140/RG.2.1.2561.3929 PB - Academic Press CY - San Diego, CA ER - TY - VIDEO A1 - Al-Subari, Karema A1 - Al-Baddai, Saad A1 - Tomé, Ana Maria A1 - Goldhacker, Markus A1 - Faltermeier, Rupert A1 - Lang, Elmar Wolfgang T1 - EMDLAB-toolbox- tutorial video Y1 - 2015 UR - https://www.researchgate.net/publication/280492172_EMDLAB-toolbox-_tutorial_video ER - TY - JOUR A1 - Greenlee, Mark W. A1 - Rosengarth, Katharina A1 - Schmalhofer, Carolin A1 - Goldhacker, Markus A1 - Brandl-Rühle, Sabine A1 - Plank, Tina T1 - Perceptual learning in patients with central scotomata due to hereditary and age-related macular dystrophy JF - Journal of Vision N2 - Hereditary and age-related forms of macular dystrophy (MD) are characterized by loss of cone function in the fovea, leading to central scotomata and eccentric fixation at the so-called preferred retinal locus (PRL). We investigated whether perceptual learning enhances visual abilities at the PRL. We also determined the neural correlates (3-Tesla fMRI) of learning success. Twelve MD patients (eight with age-related macular dystrophy, four with hereditary macular dystrophies) were trained on a texture discrimination task (TDT) over six days. Patients underwent three fMRI sessions (before, during and after training) while performing the TDT (target at PRL or opposite PRL). Reading speed, visual acuity (Vernier task) and contrast sensitivity were also assessed before and after training. With one exception, all patients showed improved performance (i.e. significant decrease in stimulus onset asynchronies and reaction times, significant increase in hit rates) on the TDT. Eight patients also showed moderate increases in reading speed, six patients showed improved thresholds in contrast sensitivity and nine patients showed improved thresholds in a vernier visual acuity task after TDT training. We found an increase in BOLD response in the projections zone of the PRL in the primary visual cortex in nine of twelve patients after training. The change in fMRI signal correlated (r = .8; p = .02) with the patients’ performance enhancements when the target was in the PRL. The results suggest that perceptual learning can enhance eccentric vision and cortical processing in MD patients. Y1 - 2014 U6 - https://doi.org/10.1167/14.10.666 SN - 1468-4233 SN - 0301-0066 VL - 14 IS - 10 PB - ARVO ER - TY - JOUR A1 - Goldhacker, Markus A1 - Rosengarth, Katharina A1 - Anstis, Stuart A1 - Wirth, Anna A1 - Plank, Tina A1 - Greenlee, Mark W. T1 - FMRI evidence for perceptual filling-in in patients with macular dystrophy JF - Perception Y1 - 2013 UR - https://www.researchgate.net/publication/298247764_FMRI_evidence_for_perceptual_filling-in_in_patients_with_macular_dystrophy SN - 1468-4233 SN - 0301-0066 VL - 42 SP - 72 EP - 73 ER - TY - BOOK A1 - Schultz, David A1 - Jain, Brijnesh T1 - Nonsmooth Analysis and Subgradient Methods for Averaging in Dynamic Time Warping Spaces N2 - Time series averaging in dynamic time warping (DTW) spaces has been successfully applied to improve pattern recognition systems. This article proposes and analyzes subgradient methods for the problem of finding a sample mean in DTW spaces. The class of subgradient methods generalizes existing sample mean algorithms such as DTW Barycenter Averaging (DBA). We show that DBA is a majorize-minimize algorithm that converges to necessary conditions of optimality after finitely many iterations. Empirical results show that for increasing sample sizes the proposed stochastic subgradient (SSG) algorithm is more stable and finds better solutions in shorter time than the DBA algorithm on average. Therefore, SSG is useful in online settings and for non-small sample sizes. The theoretical and empirical results open new paths for devising sample mean algorithms: nonsmooth optimization methods and modified variants of pairwise averaging methods. Y1 - 2017 U6 - https://doi.org/10.48550/arXiv.1701.06393 ER - TY - CHAP A1 - Schöpf, Nicolas ED - Engel, Nicolas ED - Sausele-Bayer, Ines T1 - Lernen in Mikroorganisationen : Berufspädagogische Anmerkungen zu einem offenen Forschungsfeld T2 - Organisation : ein pädagogischer Grundbegriff (Erlanger Beiträge zur Pädagogik; 15) Y1 - 2014 UR - https://content.e-bookshelf.de/media/reading/L-2916742-3d390c5ca0.pdf SN - 978-3-8309-3060-0 SP - 185 EP - 200 PB - Waxmann CY - Münster; New York ER - TY - CHAP A1 - Schöpf, Nicolas A1 - Beutner, S. ED - Reglin, Thomas ED - Schöpf, Nicolas ED - Loebe, Herbert T1 - Lern- und Arbeitsaufgaben – Handlungsorientierung – Prozessorientierung. Fallbeispiele aus der betrieblichen Praxis T2 - Prozessorientierung in der Ausbildung. Ausbildung im Arbeitsprozess. - (Wirtschaft und Bildung ; 39) KW - *pubEx Y1 - 2005 SN - 978-3-7639-3280-1 PB - Bertelsmann CY - Bielefeld ER - TY - CHAP A1 - Schöpf, Nicolas ED - Reglin, Thomas ED - Schöpf, Nicolas T1 - Lernen im und mit dem Internet – Die WebQuest-Didaktik T2 - eLearning für die betriebliche Praxis . - (Wirtschaft und Bildung ; 30) Y1 - 2005 SN - 978-3-7639-3112-5 SP - 181 EP - 195 PB - Bertelsmann CY - Bielefeld ER - TY - CHAP A1 - Zürner, Christian ED - Keil, Werner ED - Goer, Charis T1 - Vom Göttlichen in der Musik. Wilhelm Heinrich Wackenroders Berglinger-Text “Die Wunder der Tonkunst” T2 - "Seelenaccente"-"Ohrenphysiognomik" : Zur Musikanschauung E.T.A. Hoffmanns, Heinses und Wackenroders. - (Diskordanzen - Studien zur neueren Musikgeschichte ; 8) Y1 - 2000 SN - 978-3-487-11262-6 SP - 297 EP - 337 PB - Olms, Georg CY - Hildesheim ER - TY - THES A1 - Zürner, Christian T1 - Ästhetische Bildung und Frühromanik : Kritische Dialoge zwischen Wilhelm Wackenroder und Theodor W. Adorno T2 - Villigst Perspektiven Y1 - 2006 SN - 978-3-8258-9171-8 VL - 8 PB - LIT CY - Berlin ER - TY - CHAP A1 - Zürner, Christian ED - Fritsch-Oppermann, Sybille T1 - Vom Erzählen : Gedanken zur Abschlußdiskussion T2 - Sofies Welt : ein interreligiöser Dialog über Geschichte, Philosophie und Wirklichkeit ; Dokumentation einer Tagung der Evangelischen Akademie Loccum vom 8. bis 10. Mai 1998 - (Loccumer Protokolle ; 19/98) Y1 - 1998 SP - 150 EP - 152 PB - Evangelische Akademie Loccum ER - TY - CHAP A1 - Schreiner, Rupert A1 - Mulot, M. A1 - Gauggel, H. P. A1 - Schweizer, H. A1 - Laue, C. K. A1 - Wallenstein, R. T1 - Dynamic and spectral properties of red DFB lasers T2 - Technical Digest. Summaries of papers presented at the Conference on Lasers and Electro-Optics. Postconference Technical Digest (IEEE Cat. No.01CH37170) ; Baltimore, May 6 - 11, 2001 (Trends in optics and photonics series ; 56) N2 - Summary form only given. Narrow linewidth GaInP/AlGaInP DFB lasers are promising light sources for spectroscopy, for optical data storage systems and for plastic optical fiber WDM applications. However, little is known about the dynamic behavior of red DFB lasers. In this paper, we report on the dynamic and spectral properties of those devices. The lasers were first characterized under cw operation at 25/spl deg/C. Threshold currents are /spl sim/14 mA (475 /spl mu/m length) and /spl sim/18 mA (900 /spl mu/m length). The lasers show stable single mode emission at 680 nm with a SMSR better than -25 dB. The spectral linewidth of the 900 /spl mu/m long devices was measured by using a scanning-Fabry-Perot interferometer. Y1 - 2001 UR - http://ieeexplore.ieee.org/document/947498/ SN - 1-55752-662-1 U6 - https://doi.org/10.1109/CLEO.2001.947498 SP - 81 EP - 82 PB - IEEE ER - TY - CHAP A1 - Sterner, Michael ED - Faulstich, Martin ED - Mocker, Mario T1 - WBGU Gutachten - zukunftsfähige Bioenergie und nachhaltige Landnutzung T2 - Biomasse & Abfall : Emissionen mindern und Rückstände nutzen (Verfahren & Werkstoffe für die Energietechnik ; 5) Y1 - 2009 SN - 9783981039146 SP - 23 EP - 28 PB - Dorner Printconcept CY - Sulzbach-Rosenberg ER - TY - BOOK ED - Reglin, Thomas ED - Schöpf, Nicolas ED - Loebe, Herbert T1 - Prozessorientierung in der Ausbildung : Ausbildung im Arbeitsprozess T3 - Wirtschaft und Bildung N2 - Der vorliegende Band versammelt Beiträge von Berufsbildungsexperten zu Organisation, Didaktik und betrieblicher Praxis prozessorientierter Ausbildung. KW - Arbeitsprozess KW - Betriebliche Ausbildung KW - Deutschland KW - Handlungsorientiertes Lernen Y1 - 2005 SN - 978-3-7639-3280-1 VL - 39 PB - Bertelsmann CY - Bielefeld ER -