@inproceedings{29938, abstract = {{Modular solid-state transformers (SSTs) are a promising technology in converting power from a 10kV three-phase medium voltage to a lower DC-voltage in the range of 100…400V to provide pure DC power to applications such as electrolyzers for hydrogen generation, data centers with a DC power distribution and DC micro grids. Modular SSTs which can be interpreted as modular multilevel converters with an isolated DC-DC output stage per module, are designed with redundant modules to increase reliability. Usually, each of the three arms operates independently, and therefore, only a fixed number of faulty modules can be compensated in each arm, even if all modules are operational in the remaining two arms. With the proposed zero-sequence voltage injection, up to 100% more faulty modules can be compensated in an arm by employing the same hardware. In addition, module power imbalances are nearly eliminated by utilizing a fundamental frequency zero-sequence voltage. A dominant 3rd harmonic zero-sequence voltage injection in combination with the 5th, 7th and several higher order harmonics with adaptive (small) amplitudes minimize the required arm voltages at steady-state. For nominal operation or symmetrical faults, the proposed technique is equivalent to the well known Min-Max voltage injection, which already reduces the peak arm voltage by 13.4% compared to a constant star point potential. A statistical analysis proves, that the expected number of tolerable faulty modules of the 1MW SST increases by 12% without the need for additional hardware.}}, author = {{Unruh, Roland and Lange, Jarren and Schafmeister, Frank and Böcker, Joachim}}, booktitle = {{23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe)}}, isbn = {{978-9-0758-1537-5}}, keywords = {{Solid-State Transformer, Zero sequence voltage, Fault handling strategy, Power balance control technique, Three-phase system}}, location = {{Ghent, Belgium}}, publisher = {{IEEE}}, title = {{{Adaptive Zero-Sequence Voltage Injection for Modular Solid-State Transformer to Compensate for Asymmetrical Fault Conditions}}}, doi = {{https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570542}}, year = {{2021}}, } @inbook{32698, author = {{Markewitz, Friedrich}}, booktitle = {{Historische Text- und Diskurssemantik. Jahrbuch für Germanistische Sprachgeschichte}}, editor = {{Bär, Jochen}}, pages = {{161--175}}, title = {{{Das historische Schulprogramm als wissenschaftssystemische Textsorte: Reflexionen zu seiner para- und peritextuellen Ausgestaltung}}}, volume = {{11}}, year = {{2021}}, } @inbook{32695, author = {{Markewitz, Friedrich}}, booktitle = {{Sprache des Todes – Sprache des Sterbens}}, editor = {{Braun, Christian}}, pages = {{121--140}}, title = {{{Aber das Getto ist grausam, es hält seine Opfer fest in seinen faulenden Zähnen“ - Zum sprachlichen Umgang mit der drohenden Vernichtung im Diskursraum des Gettos Litzmannstadt}}}, year = {{2021}}, } @inbook{32707, author = {{Markewitz, Friedrich}}, booktitle = {{Schulprogramme Höherer Lehranstalten. Interdisziplinäre Perspektiven auf eine wiederentdeckte bildungs- und kulturwissenschaftliche Quellengattung}}, editor = {{Ächtler, Norman}}, pages = {{65--88}}, title = {{{Zum programmatischen Potenzial des Schulprogramms}}}, year = {{2021}}, } @unpublished{32099, author = {{Weich, Tobias and Budde, Julia}}, booktitle = {{arXiv:2103.02968v1}}, title = {{{Wave Front Sets of Nilpotent Lie Group Representations}}}, year = {{2021}}, } @misc{24202, author = {{Pawelczyk, Sebastian and Jesinghausen, Steffen and Schmid, Hans-Joachim}}, title = {{{Charakterisierung des Fließverhaltens von Frischbeton – Entwicklung eines adaptiven Rheometers (ACCR) und Einfluss von Maßnahmen zur Sedimentationsprävention}}}, year = {{2021}}, } @article{32896, author = {{Öhlschläger, Claudia}}, journal = {{ZfdPh, Heft 2/2021}}, pages = {{221--234}}, title = {{{Wiederholung. Zu einem temporalen und ästhetischen Muster passiv erfahrener Zeit in feuilletonistischen Städtebildern Siegfried Kracauers.}}}, volume = {{140}}, year = {{2021}}, } @inbook{32055, abstract = {{Aufgrund der Einschränkungen im Rahmen der COVID-19-Pandemie sind viele Geflüchtete von Zugängen zur Aneignung der deutschen Sprache und damit von gesellschaftlicher und bildungsbezogener Teilhabe abgeschnitten. Die vorliegende Untersuchung erkundet, inwiefern das bislang präsenzbasierte Projekt Sprachbegleitung Geflüchteter pandemiebedingt auch digital vermittelte Zugänge zu Interaktions- und Sprachlerngelegenheiten schaffen und so die Auswirkungen der gesellschaftlichen und bildungsbezogenen Isolation für Geflüchtete in Gemeinschaftsunterkünften abmildern kann. Aufbauend auf einer Fragebogenuntersuchung werden dazu die Erfahrungen und Sichtweisen drei afghanischer bzw. iranischer Geflüchteter mittels episodischer Interviews elizitiert und im Rahmen einer qualitativen Inhaltsanalyse ausgewertet. Damit wird explorativ erforscht, welche Grenzen und Chancen digitaler Zugänge zu Interaktion und kommunikativer Praxis sich skizzieren lassen und welche Konsequenzen sich für die Gestaltung von Sprachlern- und Partizipationsmöglichkeiten für Geflüchtete ableiten lassen.}}, author = {{Can, Magdalena and Müller, Mareike and Niederhaus, Constanze}}, booktitle = {{Lockdown, Homeschooling und Social Distancing – der Zweitspracherwerb unter akut veränderten Bedingungen der COVID-19-Pandemie}}, editor = {{Gamper, Jana and Hövelbrinks, Britta and Schlauch, Julia}}, isbn = {{9783823384946}}, pages = {{195–222}}, publisher = {{Narr}}, title = {{{Digitale Zugänge zu kommunikativer Praxis schaffen: Eine explorative Interviewstudie im Projekt Sprachbegleitung Geflüchteter}}}, doi = {{10.24053/9783823394945}}, year = {{2021}}, } @article{26689, author = {{Goller, Michael and Caruso, Carina and Harteis, Christian}}, journal = {{International Journal of Research on Vocational and Educational Training}}, number = {{2}}, pages = {{208--223}}, title = {{{Digitalisation in agriculture: Knowledge and learning requirements of German diary farmers}}}, volume = {{8}}, year = {{2021}}, } @article{33372, abstract = {{Academics may actively respond to the expectations of the academic status market, which have largely been shaped by the World University Rankings (WURs). This study empirically examines how academics’ citation patterns have changed in response to the rise of an “evaluation environment” in academia. We regard the WURs to be a macro-level trigger for cementing a bibliometric-based evaluation environment in academia. Our analyses of citation patterns in papers published in two higher education journals explicitly considered three distinct periods: the pre-WURs (1990–2003), the period of WURs implementation (2004–2010), and the period of adaption to WURs (2011–2017). We applied the nonparametric Kaplan–Meier method to compare first-citation speeds of papers published across the three periods. We found that not only has first-citation speed become faster, but first-citation probability has also increased following the emergence of the WURs. Applying Cox proportional hazard models to first-citation probabilities, we identified journal impact factors and third-party funding as factors influencing first-citation probability, while other author- and paper-related factors showed limited effects. We also found that the general effects of different factors on first-citation speeds have changed with the emergence of the WURs. The findings expand our understanding of the citation patterns of academics in the rise of WURs and provide practical grounds for research policy as well as higher education policy.}}, author = {{Lee, Soo Jeung and Schneijderberg, Christian and Kim, Yangson and Steinhardt, Isabel}}, issn = {{2071-1050}}, journal = {{Sustainability}}, keywords = {{world university rankings, citation, first-citation speed, Minerva, Studies in Higher Education}}, number = {{17}}, publisher = {{MDPI AG}}, title = {{{Have Academics’ Citation Patterns Changed in Response to the Rise of World University Rankings? A Test Using First-Citation Speeds}}}, doi = {{10.3390/su13179515}}, volume = {{13}}, year = {{2021}}, } @article{27575, abstract = {{There is a distinct increase in the prevalence of depression with the onset of puberty. The role of peripubertal testosterone levels in boys in this context is insufficiently understood and may be modulated by a functional polymorphism of the androgen receptor gene (AR), a variable number of CAG repeats. Moreover, there is preliminary evidence that the relationship between testosterone, CAG repeat length, and the severity of depressive symptoms may differ between subclinical and overt depression, but this has neither been studied in a clinical sample of adolescents with depression nor compared between subclinical and overt depression in an adequately powered study. To investigate the relationship between free testosterone, CAG repeat length of the AR, depression status (subclinical vs. overt), and the severity of depressive symptoms, 118 boys treated as in- or daycare patients at a single psychiatric hospital were studied. Of these, 73 boys had at least mild depressive symptoms according to the Beck Depression Inventory-II (BDI-II > 13). Higher-order moderation analysis in the multiple regression framework revealed a constant relationship between free testosterone and depression severity irrespective of the number of CAG repeats in adolescents with a BDI-II score ≤ 13. In adolescents with a BDI-II score > 13, however, there was a significant negative relationship between free testosterone and BDI-II score in patients with <19 CAG repeats and a significant positive relationship regarding free testosterone and BDI-II score in those with more than 28 CAG repeats, even when considering important covariates. These results suggest that the effects of testosterone on mood in male adolescents with depression depend on the genetic make-up of the AR as well as on depression status. This complex relationship should be considered by future studies addressing mental health issues against an endocrine background and may, moreover, contribute to tailored treatment concepts in psychiatric medicine, especially in adults.}}, author = {{Hirtz, Raphael and Libuda, Lars and Hinney, Anke and Föcker, Manuel and Bühlmeier, Judith and Holterhus, Paul-Martin and Kulle, Alexandra and Kiewert, Cordula and Hebebrand, Johannes and Grasemann, Corinna}}, issn = {{1664-0640}}, journal = {{Frontiers in Psychiatry}}, title = {{{Size Matters: The CAG Repeat Length of the Androgen Receptor Gene, Testosterone, and Male Adolescent Depression Severity}}}, doi = {{10.3389/fpsyt.2021.732759}}, year = {{2021}}, } @article{27571, abstract = {{(1) Background: Evidence has accumulated that patients with anorexia nervosa (AN) are at higher risk for vitamin D deficiency than healthy controls. In epidemiologic studies, low 25(OH) vitamin D (25(OH)D) levels were associated with depression. This study analyzed the relationship between 25(OH)D serum levels in adolescent patients and AN and depressive symptoms over the course of treatment. (2) Methods: 25(OH)D levels and depressive symptoms were analyzed in 93 adolescent (in-)patients with AN from the Anorexia Nervosa Day patient versus Inpatient (ANDI) multicenter trial at clinic admission, discharge, and 1 year follow up. Mixed regression models were used to analyze the relationship between 25(OH)D levels and depressive symptoms assessed by the Beck Depression Inventory (BDI-II). (3) Results: Although mean 25(OH)D levels constantly remained in recommended ranges (≥50 nmol/L) during AN treatment, levels decreased from (in)patient admission to 1 year follow up. Levels of 25(OH)D were neither cross-sectionally, prospectively, nor longitudinally associated with the BDI-II score. (4) Conclusions: This study did not confirm that 25(OH)D levels are associated with depressive symptoms in patients with AN. However, increasing risks of vitamin D deficiency over the course of AN treatment indicate that clinicians should monitor 25(OH)D levels.}}, author = {{Föcker, Manuel and Timmesfeld, Nina and Bühlmeier, Judith and Zwanziger, Denise and Führer, Dagmar and Grasemann, Corinna and Ehrlich, Stefan and Egberts, Karin and Fleischhaker, Christian and Wewetzer, Christoph and Wessing, Ida and Seitz, Jochen and Herpertz-Dahlmann, Beate and Hebebrand, Johannes and Libuda, Lars}}, issn = {{2072-6643}}, journal = {{Nutrients}}, title = {{{Vitamin D Level Trajectories of Adolescent Patients with Anorexia Nervosa at Inpatient Admission, during Treatment, and at One Year Follow Up: Association with Depressive Symptoms}}}, doi = {{10.3390/nu13072356}}, year = {{2021}}, } @article{26632, abstract = {{AbstractAnorexia nervosa (AN) is a severe eating disorder and often associated with altered humoral immune responses. However, distinct B cell maturation stages in peripheral blood in adolescents with AN have not been characterized. Treatment effects and the relationship between clinical and B cell parameters are also not fully understood. Here we investigated the phenotype of circulating B cell subsets and the relationship with body composition in adolescents with AN before (T0, n = 24) and after 6 weeks (T1, n = 20) of treatment. Using multi-parameter flow cytometry, we found increased percentages of antigen-experienced B cells and plasmablasts in patients with AN compared to healthy controls (n = 20). In contrast, percentages of CD1d+CD5+ B cells and transitional B cells with immunoregulatory roles were reduced at T0 and T1. These B cell frequencies correlated positively with fat mass, fat mass index (FMI), free fat mass index, and body mass index standard deviation score. In addition, scavenger-like receptor CD5 expression levels were downregulated on transitional B cells and correlated with fat mass and FMI in AN. Our findings that regulatory B cell subgroups were reduced in AN and their strong relationship with body composition parameters point toward an impact of immunoregulatory B cells in the pathogenesis of AN.}}, author = {{Freff, Jana and Schwarte, Kathrin and Bröker, Lisa and Bühlmeier, Judith and Kraft, Isabelle and Öztürk, Dana and Hinney, Anke and Arolt, Volker and Dannlowski, Udo and Romer, Georg and Baune, Bernhard T. and Hebebrand, Johannes and Föcker, Manuel and Alferink, Judith}}, issn = {{2045-2322}}, journal = {{Scientific Reports}}, title = {{{Alterations in B cell subsets correlate with body composition parameters in female adolescents with anorexia nervosa}}}, doi = {{10.1038/s41598-020-80693-4}}, year = {{2021}}, } @article{26525, author = {{Hebebrand, Johannes and Antel, Jochen and Tan, Susanne and Wabitsch, Martin and Wiesing, Urban and Barth, Nikolaus and Ludwig, Christine and Bühlmeier, Judith and Libuda, Lars and Milos, Gabriella and Hinney, Anke}}, issn = {{1422-4917}}, journal = {{Zeitschrift für Kinder- und Jugendpsychiatrie und Psychotherapie}}, pages = {{1--5}}, title = {{{Kurzzeitige Behandlung von Patient_innen mit Anorexia nervosa mit rekombinant hergestelltem Human-Leptin (Metreleptin): Rasch einsetzende positive Effekte auf Stimmung, Kognition und Verhalten}}}, doi = {{10.1024/1422-4917/a000775}}, year = {{2021}}, } @article{33410, author = {{Kißling, Magdalena}}, journal = {{Der Deutschunterrich (2) }}, pages = {{89--94}}, title = {{{Vom ‚Komaglotzen‘ zum literar- und medienästhetischen Lernen. Konzeptualisierung eines fernsehseriellen Lehr-Lern-Settings am Beispiel des Teen Dramas ANNE WITH AN E.}}}, year = {{2021}}, } @inbook{33419, author = {{Kißling, Magdalena}}, booktitle = {{Medienwissenschaften und Mediendidaktik im Dialog – Zum Status Quo von Medienbildung im Deutschunterricht}}, editor = {{Dembeck, Till and Pavlik, Jennifer}}, pages = {{151--171}}, publisher = {{Erich Schmidt Verlag}}, title = {{{Intermedialer Literaturunterricht. Ein medienintegratives Differenzierungskonzept zur Förderung literarästhetischen Lernens am Beispiel ausgewählter Kinderromane für die Sekundarstufe I}}}, year = {{2021}}, } @inbook{33420, author = {{Kißling, Magdalena}}, booktitle = {{Kinder- und Jugendliteratur intermedial. Unterrichtsanregungen und -materialien zum literarischen Lernen im Medienverbund anhand von Emil und die Detektive (Gym/Ge) und Jakob der Lügner (BK). Erstellt von Masterstudierenden der Universität Paderborn}}, pages = {{2--6}}, publisher = {{Universitätsbibliothek, Open Access}}, title = {{{Einleitung}}}, year = {{2021}}, } @inbook{32898, author = {{Öhlschläger, Claudia and Schneider, Martin }}, booktitle = {{Komparatistik heute. Aktuelle Positionen der Vergleichenden Literatur- und Kulturwissenschaft}}, editor = {{Steigerwald, Jörn}}, pages = {{159--173}}, publisher = {{Brill/Fink}}, title = {{{Passivität als Widerstand gegen die Macht der Verhältnisse? "Bartleby, the scrivener" aus literaturwissenschaftlicher und ökonomischer Perspektive}}}, year = {{2021}}, } @inbook{33433, author = {{Knickenberg, Margarita and Stöcker, A and Zurbriggen, Carmen}}, booktitle = {{Inklusive Schule und Schulentwicklung Theoretische Grundlagen, empirische Befunde und Praxisbeispiele aus Deutschland, Österreich und der Schweiz.}}, editor = {{Resch, K and Lindner, K.-T. and Streese, B and Proyer, M and Schwab, S}}, publisher = {{Waxmann}}, title = {{{Inklusives Klassenklima. Zur Bedeutung der sozialen Dimension des Klassenklimas unter Berücksichtigung von Heterogenität}}}, year = {{2021}}, } @inbook{33434, author = {{Knickenberg, Margarita and Zurbriggen, Carmen}}, booktitle = {{G. Hagenauer & D. Raufelder (Hrsg.), Soziale Eingebundenheit. Sozialbeziehungen im Fokus von Schule und Lehrer*innenbildung}}, editor = {{Hagenauer, G and Raufelder, D}}, pages = {{335--350}}, publisher = {{Waxmann}}, title = {{{Die Bedeutsamkeit von Peers für Jugendliche in der Sekundarstufe und in der Freizeit}}}, year = {{2021}}, }