@article{22517, author = {{Köller, Katharina and Tophinke, Doris}}, journal = {{Der Deutschunterricht}}, number = {{3}}, pages = {{2–13}}, publisher = {{Friedrich Verlag}}, title = {{{Das ,rechte Schreiben‘ lernen. Von der Buchstabiermethode zur sprachsystematischen Vermittlung}}}, volume = {{LXXIII}}, year = {{2021}}, } @inbook{35877, author = {{Krämer, Anike}}, booktitle = {{ Trans* und Inter* Studies - Aktuelle Forschungsbeiträge aus dem deutschsprachigen Raum}}, isbn = {{978-3-98634-117-6}}, title = {{{Die Konstruktion der medizinischen Deutungsmacht auf Inter*}}}, year = {{2021}}, } @inbook{35882, author = {{Krämer, Anike}}, booktitle = {{Gewissheit. Beiträge und Debatten zum 3. Sektionskongress der Wissenssoziologie}}, isbn = {{978-3-7799-6281-6}}, pages = {{565--575}}, title = {{{Die (Un)Gewissheit der Zweigeschlechtlichkeit. Aushandlungen von Eltern intergeschlechtlicher Kinder}}}, year = {{2021}}, } @inbook{32059, author = {{Asmacher, Judith and Borowoski, Damaris and Böttger, Lydia and Islinger, Günter and Robers, Christin}}, booktitle = {{Universitäre Weiterbildungen im Handlungsfeld von Deutsch als Zweitsprache}}, editor = {{Asmacher, Judith and Serrand, Catherine and Roll, Heike}}, isbn = {{978-3-8309-4303-7}}, pages = {{113--142}}, publisher = {{Waxmann Verlag}}, title = {{{Zur Wirkung der universitären DaZ-Weiterbildungen an den Standorten Duisburg-Essen, Münster und Paderborn. Auswertung von schriftlichen Reflexionen teilnehmender Lehrkräfte}}}, year = {{2021}}, } @book{36100, author = {{Becker, Rieke}}, isbn = {{978-3-86218-137-7}}, keywords = {{Universitätsgeschichte, Universität Hamburg, Universitätsjubiläen, Hochschuljubiläen, Jubiläumskultur, Festkulturforschung}}, pages = {{152}}, publisher = {{Dölling und Galitz}}, title = {{{„Kein Grund zum Feiern“. Die Jubiläen der Universität Hamburg 1969 und 1994 im Zeichen politischer Konflikte}}}, volume = {{14}}, year = {{2021}}, } @inbook{36457, author = {{Lauert, Markus}}, booktitle = {{Leben am Hof zu Neuhaus. Biografische Skizzen zur Hofkultur einer fürstbischöflichen Residenz}}, editor = {{Neuwöhner, Andreas and Wolfram, Lars}}, pages = {{162–183}}, title = {{{Gottfried Wilhelm Leibniz: zu Besuch bei Ferdinand von Fürstenberg}}}, volume = {{88}}, year = {{2021}}, } @article{25227, abstract = {{AbstractQuantum well (QW) heterostructures have been extensively used for the realization of a wide range of optical and electronic devices. Exploiting their potential for further improvement and development requires a fundamental understanding of their electronic structure. So far, the most commonly used experimental techniques for this purpose have been all-optical spectroscopy methods that, however, are generally averaging in momentum space. Additional information can be gained by angle-resolved photoelectron spectroscopy (ARPES), which measures the electronic structure with momentum resolution. Here we report on the use of extremely low-energy ARPES (photon energy ~ 7 eV) to increase depth sensitivity and access buried QW states, located at 3 nm and 6 nm below the surface of cubic-GaN/AlN and GaAs/AlGaAs heterostructures, respectively. We find that the QW states in cubic-GaN/AlN can indeed be observed, but not their energy dispersion, because of the high surface roughness. The GaAs/AlGaAs QW states, on the other hand, are buried too deep to be detected by extremely low-energy ARPES. Since the sample surface is much flatter, the ARPES spectra of the GaAs/AlGaAs show distinct features in momentum space, which can be reconducted to the band structure of the topmost surface layer of the QW structure. Our results provide important information about the samples’ properties required to perform extremely low-energy ARPES experiments on electronic states buried in semiconductor heterostructures.}}, author = {{Hajlaoui, Mahdi and Ponzoni, Stefano and Deppe, Michael and Henksmeier, Tobias and As, Donat Josef and Reuter, Dirk and Zentgraf, Thomas and Springholz, Gunther and Schneider, Claus Michael and Cramm, Stefan and Cinchetti, Mirko}}, issn = {{2045-2322}}, journal = {{Scientific Reports}}, title = {{{Extremely low-energy ARPES of quantum well states in cubic-GaN/AlN and GaAs/AlGaAs heterostructures}}}, doi = {{10.1038/s41598-021-98569-6}}, volume = {{11}}, year = {{2021}}, } @inbook{37133, author = {{Felder, Ekkehard and Schuster, Britt-Marie and Spranz-Fogasy, Thomas}}, booktitle = {{Linguistik und Medizin}}, editor = {{Iakushevich, Marina and Ilg, Yvonne and Schnedermann, Theresa}}, keywords = {{Fachkommunikation}}, publisher = {{De Gruyter}}, title = {{{Diagnosen (h)erstellen – Sprachwissenschaftliche Zugänge}}}, doi = {{10.1515/9783110688696-002}}, year = {{2021}}, } @inbook{37132, author = {{Schuster, Britt-Marie}}, booktitle = {{Protest, Protestieren, Protestkommunikation}}, editor = {{Dang-Anh, Mark and Meer, Dorothee and Wyss, Eva L.}}, keywords = {{Kommunikationsgeschichte}}, publisher = {{De Gruyter}}, title = {{{Widersprechen als diskursive Praktik. Illustriert an der Widerstandskommunikation gegen den Nationalsozialismus (1933–1945)}}}, doi = {{10.1515/9783110759082-004}}, year = {{2021}}, } @inbook{37130, author = {{Schuster, Britt-Marie and Wilk, Nicole M.}}, booktitle = {{Sprache des Sterbens – Sprache des Todes. Linguistische und interdisziplinäre Perspektivierungen eines zentralen Aspekts menschlichen Daseins}}, editor = {{Braun, Christian}}, keywords = {{Textsemantik}}, publisher = {{De Gruyter}}, title = {{{Bedeutungsvarianz und sozialer Stil}}}, doi = {{10.1515/9783110694734-010}}, year = {{2021}}, } @inbook{40922, author = {{Foerster, Anne}}, booktitle = {{Geschlecht macht Herrschaft – Interdisziplinäre Studien zu vormoderner Macht und Herrschaft / Gender Power Sovereignty – Interdisciplinary Studies on Premodern Power}}, editor = {{Stieldorf, Andrea}}, pages = {{341--365}}, title = {{{Gender and Authority – The Entanglement of Two Concepts in High Medieval Historiography}}}, doi = {{10.14220/9783737013437.341}}, volume = {{15}}, year = {{2021}}, } @inbook{40921, author = {{Foerster, Anne}}, booktitle = {{Kinderlosigkeit im Mittelalter}}, editor = {{Toepfer, Regina and Wahring, Bettina}}, pages = {{393--411}}, title = {{{Die Witwenschaft kinderloser Königinnen im Hochmittelalter}}}, doi = {{0000-0002-3848-3592}}, volume = {{26,2}}, year = {{2021}}, } @inbook{34976, author = {{Jacob, Joachim and Süßmann, Johannes}}, booktitle = {{The Reception of Antiquity in the Age of Enlightenment. English Edition ed. by Christina C. Harker. Translated by Duncan Alexander Smart}}, editor = {{Jacob, Joachim and Süßmann, Johannes}}, isbn = {{978-90-04-33935-4}}, pages = {{XI–XV and fig. 1, p. 117}}, publisher = {{Brill}}, title = {{{Introduction}}}, doi = {{10.1163/2468-3418_bnps12_sim_231446}}, volume = {{12}}, year = {{2021}}, } @misc{48787, author = {{Hartung, Olaf}}, booktitle = {{H-Soz-Kult}}, publisher = {{Clio-online - Historisches Fachinformationssystem e.V.}}, title = {{{Rezension von: Jörg van Norden, Thomas Must, Lars Deile, Peter Riedel, Susan Krause und Wanda Schürenberg (Hgg.): Geschichtsdidaktische Grundbegriffe. Ein Bilderbuch für Studium, Lehre und Beruf. Hannover 2020}}}, year = {{2021}}, } @inproceedings{21572, author = {{Ridderbusch, Steffen and Offen, Christian and Ober-Blöbaum, Sina and Goulart, Paul}}, booktitle = {{2021 60th IEEE Conference on Decision and Control (CDC)}}, location = {{Austin, TX, USA}}, pages = {{2896}}, publisher = {{IEEE}}, title = {{{Learning ODE Models with Qualitative Structure Using Gaussian Processes }}}, doi = {{10.1109/CDC45484.2021.9683426}}, year = {{2021}}, } @inbook{29838, author = {{Hartung, Olaf and Krebs, Alexandra and Fastlabend-Vargas, Daniel and Meyer-Hamme, Johannes}}, booktitle = {{Theorie und Praxis in der Lehrerbildung.Verhältnisbestimmungen aus der Perspektive von Fachdidaktiken}}, editor = {{Caruso, Carina and Harteis, Christian and Gröschner, Alexander}}, isbn = {{9783658325671 }}, pages = {{63--81}}, publisher = {{Springer VS}}, title = {{{Der steinige Weg vom Wissen zum Können: Zum schwierigen Ver­hältnis von Theorie und Praxis bei der Betreuung zukünftiger Geschichtslehrkräfte in Langzeitpraktika}}}, year = {{2021}}, } @inproceedings{29893, abstract = {{Phase-shift modulated full bridge converters suffer from thermal imbalances of the inverter switches. The lagging leg switches are subject to larger commutation currents compared to those of the leading leg as the transformer current reduces in the freewheeling interval. Furthermore, after this interval, the energy in the series inductance may not be large enough to achieve zero-voltage switching (ZVS) for the leading leg. Both effects result in thermal imbalances. This paper analyzes the alternating-asymmetrical phase-shift modulation to achieve balanced conduction and switching losses for all four switches while showing that this modulation is easily implemented on standard DSPs. The modulation has been implemented to LLC converters where experimental measurement results proved its effectiveness for LLC converters by reducing the temperature deviation from 6.3 K to only 0.2 K such that the peak temperature is reduced from 95 °C to 92 °C. The paper also proves that the modulation can be utilized to improve the efficiency of LLC converters operated at very low gains while simultaneously reducing the junction temperature of all four switches compared to the conventional complementary modulation. Finally, EMI implications are analyzed, which show that the modulation may be beneficial for reducing the common-mode emissions around the operating frequency.}}, author = {{Rehlaender, Philipp and Unruh, Roland and Schafmeister, Frank and Böcker, Joachim}}, booktitle = {{2021 IEEE Applied Power Electronics Conference and Exposition (APEC)}}, isbn = {{978-1-7281-8950-5}}, keywords = {{Phase-Shifted Full Bridge, Full-Bridge Converter, Phase-Shift Control, Phase-Shift Modulation, LLC Converter, Thermal Balancing}}, location = {{Phoenix, AZ, USA}}, publisher = {{IEEE}}, title = {{{Alternating Asymmetrical Phase-Shift Modulation for Full-Bridge Converters with Balanced Switching Losses to Reduce Thermal Imbalances}}}, doi = {{10.1109/apec42165.2021.9487104}}, year = {{2021}}, } @techreport{36060, abstract = {{Merging a sample of 492 merger and acquisition (M&A) announcements from 284 acquiring firms across Europe and North America with data from 5-year single-name credit default swaps (CDSs) written on stock-listed acquiring firms between 2005 and 2018, the paper at hand empirically analyzes the CDS investors’ risk perceptions of M&A announcements using event study methodologies. As a baseline result, we provide evidence for significantly positive cumulative average abnormal CDS spread changes for both, European and North American acquirers suggesting that CDS investors perceive an increase in the acquiring firms’ credit risk exposures due to M&A announcements. Our baseline finding holds under several robustness checks, especially when controlling for the robustness of the empirical design. Moreover, results from a large variety of sensitivity analyses reveal a number of deal and firm characteristics that may explain why CDS investors from our sample expect an increase in the acquirers’ credit risk exposures due to forthcoming M&A transactions. }}, author = {{Hippert, Benjamin and Uhde, André}}, keywords = {{credit default swaps, risk perception of CDS investors, mergers and acquisitions, event study}}, title = {{{CDS Investors’ Risk Perceptions of M&A Announcements}}}, year = {{2021}}, } @inproceedings{29308, abstract = {{In this paper we present our system for the Detection and Classification of Acoustic Scenes and Events (DCASE) 2021 Challenge Task 4: Sound Event Detection and Separation in Domestic Environments, where it scored the fourth rank. Our presented solution is an advancement of our system used in the previous edition of the task.We use a forward-backward convolutional recurrent neural network (FBCRNN) for tagging and pseudo labeling followed by tag-conditioned sound event detection (SED) models which are trained using strong pseudo labels provided by the FBCRNN. Our advancement over our earlier model is threefold. First, we introduce a strong label loss in the objective of the FBCRNN to take advantage of the strongly labeled synthetic data during training. Second, we perform multiple iterations of self-training for both the FBCRNN and tag-conditioned SED models. Third, while we used only tag-conditioned CNNs as our SED model in the previous edition we here explore sophisticated tag-conditioned SED model architectures, namely, bidirectional CRNNs and bidirectional convolutional transformer neural networks (CTNNs), and combine them. With metric and class specific tuning of median filter lengths for post-processing, our final SED model, consisting of 6 submodels (2 of each architecture), achieves on the public evaluation set poly-phonic sound event detection scores (PSDS) of 0.455 for scenario 1 and 0.684 for scenario as well as a collar-based F1-score of 0.596 outperforming the baselines and our model from the previous edition by far. Source code is publicly available at https://github.com/fgnt/pb_sed.}}, author = {{Ebbers, Janek and Haeb-Umbach, Reinhold}}, booktitle = {{Proceedings of the 6th Detection and Classification of Acoustic Scenes and Events 2021 Workshop (DCASE2021)}}, isbn = {{978-84-09-36072-7}}, pages = {{226–230}}, title = {{{Self-Trained Audio Tagging and Sound Event Detection in Domestic Environments}}}, year = {{2021}}, } @phdthesis{37520, author = {{Cornel, Stefanie}}, isbn = {{978-3-7815-2428-6}}, title = {{{Differenz und Normalität in der Grundschule. Subjektive Theorien von Studierenden im Praxissemester }}}, year = {{2021}}, }