TY - CHAP
AU - Herzig, Bardo
AU - Engemann, Mario
ED - Maurer, C.
ED - Rincke, K.
ED - Hemmer, M.
ID - 33303
T2 - Fachliche Bildung und digitale Transformation - Fachdidaktische Forschung und Diskurse. Fachtagung der Gesellschaft für Fachdidaktik 2020
TI - Lehrerkooperation und Digitalisierung - Gestaltung digital-kooperativer Arbeitsbeziehungen von Lehrkräften und ReferendarInnen am Beispiel des Schulfachs Pädagogik
ER -
TY - CONF
AB - 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.
AU - Unruh, Roland
AU - Lange, Jarren
AU - Schafmeister, Frank
AU - Böcker, Joachim
ID - 29938
KW - Solid-State Transformer
KW - Zero sequence voltage
KW - Fault handling strategy
KW - Power balance control technique
KW - Three-phase system
SN - 978-9-0758-1537-5
T2 - 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe)
TI - Adaptive Zero-Sequence Voltage Injection for Modular Solid-State Transformer to Compensate for Asymmetrical Fault Conditions
ER -
TY - CHAP
AU - Markewitz, Friedrich
ED - Bär, Jochen
ID - 32698
T2 - Historische Text- und Diskurssemantik. Jahrbuch für Germanistische Sprachgeschichte
TI - Das historische Schulprogramm als wissenschaftssystemische Textsorte: Reflexionen zu seiner para- und peritextuellen Ausgestaltung
VL - 11
ER -
TY - CHAP
AU - Markewitz, Friedrich
ED - Braun, Christian
ID - 32695
T2 - Sprache des Todes – Sprache des Sterbens
TI - 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
ER -
TY - CHAP
AU - Markewitz, Friedrich
ED - Ächtler, Norman
ID - 32707
T2 - Schulprogramme Höherer Lehranstalten. Interdisziplinäre Perspektiven auf eine wiederentdeckte bildungs- und kulturwissenschaftliche Quellengattung
TI - Zum programmatischen Potenzial des Schulprogramms
ER -
TY - GEN
AU - Weich, Tobias
AU - Budde, Julia
ID - 32099
T2 - arXiv:2103.02968v1
TI - Wave Front Sets of Nilpotent Lie Group Representations
ER -
TY - GEN
AU - Pawelczyk, Sebastian
AU - Jesinghausen, Steffen
AU - Schmid, Hans-Joachim
ID - 24202
TI - Charakterisierung des Fließverhaltens von Frischbeton – Entwicklung eines adaptiven Rheometers (ACCR) und Einfluss von Maßnahmen zur Sedimentationsprävention
ER -
TY - JOUR
AU - Öhlschläger, Claudia
ID - 32896
JF - ZfdPh, Heft 2/2021
TI - Wiederholung. Zu einem temporalen und ästhetischen Muster passiv erfahrener Zeit in feuilletonistischen Städtebildern Siegfried Kracauers.
VL - 140
ER -
TY - CHAP
AB - 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.
AU - Can, Magdalena
AU - Müller, Mareike
AU - Niederhaus, Constanze
ED - Gamper, Jana
ED - Hövelbrinks, Britta
ED - Schlauch, Julia
ID - 32055
SN - 9783823384946
T2 - Lockdown, Homeschooling und Social Distancing – der Zweitspracherwerb unter akut veränderten Bedingungen der COVID-19-Pandemie
TI - Digitale Zugänge zu kommunikativer Praxis schaffen: Eine explorative Interviewstudie im Projekt Sprachbegleitung Geflüchteter
ER -
TY - JOUR
AU - Goller, Michael
AU - Caruso, Carina
AU - Harteis, Christian
ID - 26689
IS - 2
JF - International Journal of Research on Vocational and Educational Training
TI - Digitalisation in agriculture: Knowledge and learning requirements of German diary farmers
VL - 8
ER -
TY - JOUR
AB - 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.
AU - Lee, Soo Jeung
AU - Schneijderberg, Christian
AU - Kim, Yangson
AU - Steinhardt, Isabel
ID - 33372
IS - 17
JF - Sustainability
KW - world university rankings
KW - citation
KW - first-citation speed
KW - Minerva
KW - Studies in Higher Education
SN - 2071-1050
TI - Have Academics’ Citation Patterns Changed in Response to the Rise of World University Rankings? A Test Using First-Citation Speeds
VL - 13
ER -
TY - JOUR
AB - 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.
AU - Hirtz, Raphael
AU - Libuda, Lars
AU - Hinney, Anke
AU - Föcker, Manuel
AU - Bühlmeier, Judith
AU - Holterhus, Paul-Martin
AU - Kulle, Alexandra
AU - Kiewert, Cordula
AU - Hebebrand, Johannes
AU - Grasemann, Corinna
ID - 27575
JF - Frontiers in Psychiatry
SN - 1664-0640
TI - Size Matters: The CAG Repeat Length of the Androgen Receptor Gene, Testosterone, and Male Adolescent Depression Severity
ER -
TY - JOUR
AB - (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.
AU - Föcker, Manuel
AU - Timmesfeld, Nina
AU - Bühlmeier, Judith
AU - Zwanziger, Denise
AU - Führer, Dagmar
AU - Grasemann, Corinna
AU - Ehrlich, Stefan
AU - Egberts, Karin
AU - Fleischhaker, Christian
AU - Wewetzer, Christoph
AU - Wessing, Ida
AU - Seitz, Jochen
AU - Herpertz-Dahlmann, Beate
AU - Hebebrand, Johannes
AU - Libuda, Lars
ID - 27571
JF - Nutrients
SN - 2072-6643
TI - 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
ER -
TY - JOUR
AB - 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.
AU - Freff, Jana
AU - Schwarte, Kathrin
AU - Bröker, Lisa
AU - Bühlmeier, Judith
AU - Kraft, Isabelle
AU - Öztürk, Dana
AU - Hinney, Anke
AU - Arolt, Volker
AU - Dannlowski, Udo
AU - Romer, Georg
AU - Baune, Bernhard T.
AU - Hebebrand, Johannes
AU - Föcker, Manuel
AU - Alferink, Judith
ID - 26632
JF - Scientific Reports
SN - 2045-2322
TI - Alterations in B cell subsets correlate with body composition parameters in female adolescents with anorexia nervosa
ER -
TY - JOUR
AU - Hebebrand, Johannes
AU - Antel, Jochen
AU - Tan, Susanne
AU - Wabitsch, Martin
AU - Wiesing, Urban
AU - Barth, Nikolaus
AU - Ludwig, Christine
AU - Bühlmeier, Judith
AU - Libuda, Lars
AU - Milos, Gabriella
AU - Hinney, Anke
ID - 26525
JF - Zeitschrift für Kinder- und Jugendpsychiatrie und Psychotherapie
SN - 1422-4917
TI - Kurzzeitige Behandlung von Patient_innen mit Anorexia nervosa mit rekombinant hergestelltem Human-Leptin (Metreleptin): Rasch einsetzende positive Effekte auf Stimmung, Kognition und Verhalten
ER -
TY - JOUR
AU - Kißling, Magdalena
ID - 33410
JF - Der Deutschunterrich (2)
TI - Vom ‚Komaglotzen‘ zum literar- und medienästhetischen Lernen. Konzeptualisierung eines fernsehseriellen Lehr-Lern-Settings am Beispiel des Teen Dramas ANNE WITH AN E.
ER -
TY - CHAP
AU - Kißling, Magdalena
ED - Dembeck, Till
ED - Pavlik, Jennifer
ID - 33419
T2 - Medienwissenschaften und Mediendidaktik im Dialog – Zum Status Quo von Medienbildung im Deutschunterricht
TI - Intermedialer Literaturunterricht. Ein medienintegratives Differenzierungskonzept zur Förderung literarästhetischen Lernens am Beispiel ausgewählter Kinderromane für die Sekundarstufe I
ER -
TY - CHAP
AU - Kißling, Magdalena
ID - 33420
T2 - 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
TI - Einleitung
ER -
TY - CHAP
AU - Öhlschläger, Claudia
AU - Schneider, Martin
ED - Steigerwald, Jörn
ID - 32898
T2 - Komparatistik heute. Aktuelle Positionen der Vergleichenden Literatur- und Kulturwissenschaft
TI - Passivität als Widerstand gegen die Macht der Verhältnisse? "Bartleby, the scrivener" aus literaturwissenschaftlicher und ökonomischer Perspektive
ER -
TY - CHAP
AU - Knickenberg, Margarita
AU - Stöcker, A
AU - Zurbriggen, Carmen
ED - Resch, K
ED - Lindner, K.-T.
ED - Streese, B
ED - Proyer, M
ED - Schwab, S
ID - 33433
T2 - Inklusive Schule und Schulentwicklung Theoretische Grundlagen, empirische Befunde und Praxisbeispiele aus Deutschland, Österreich und der Schweiz.
TI - Inklusives Klassenklima. Zur Bedeutung der sozialen Dimension des Klassenklimas unter Berücksichtigung von Heterogenität
ER -