bluuebunny/crossref_metadata_2025_split huggingface dataset:
Data Literacy Education für Studierende aller Fächer. Kompetenzziele, curriculare Integration und didaktische Ausgestaltung interdisziplinärer Lehr-Lern-Angebote
Authors: Bandtel Matthias , Kauz Leonie , Weißker Natalia 
Published: October 2021

ZusammenfassungData Literacy ist eine zentrale Voraussetzung für die aktive Teilhabe an der digitalen Gesellschaft. Allerdings gibt es noch nicht für Studierende aller Fächer Angebote, die ihnen die Entwicklung dieser Schlüsselkompetenz ermöglichen. Der Beitrag diskutiert Herangehensweisen an die Definition von Lernzielen, Möglichkeiten der curricularen Integration und geeignete didaktische Ausgestaltungen von Lehr-Lernsettings. Anhand einer Fallstudie zum Mannheimer Modell Data Literacy Education (modal) und empirischen Befunden aus der Begleitforschung werden potenzielle Umsetzungsstrategien diskutiert. Ziel des Beitrags ist, Impulse und Handlungsempfehlungen für die Integration von Data Literacy Education in Lehre und Lernen für Studierende aller Fächer zu geben.
Medienbildung in der ersten Phase der Lehrkräftebildung und die Bedeutung des medialen Habitus von Lehramtsstudierenden
Authors: Bäsler Sue-Ann 
Published: October 2021

ZusammenfassungDie medienpädagogische Ausbildung und eine positiv erlebte Medienbildung bei angehenden Lehrkräften sind wichtige Voraussetzungen für eine gelungene Medienbildung in Schule und Unterricht. Der Beitrag setzt sich mit den medienbezogenen Vorstellungen von Lehramtsstudierenden in Hinblick auf das Bildungspotenzial von Medien auf der einen und die medienpädagogische Ausbildung in der ersten Phase der Lehrkräftebildung auf der anderen Seite auseinander. Im Beitrag werden Ergebnisse aus einer qualitativ angelegten Forschungsstudie vorgestellt. Ziel der Studie ist die Benennung von Implikationen für die Medienbildung in der Lehrkräftebildung. Das Konzept des medialen Habitus wird dabei als Erklärungsmoment für medienbezogene Vorstellungen herangezogen, empirisch fundiert und weiterentwickelt.
Agiles Lernen digital gestützt: Die Methode eduScrum in der Hochschullehre
Authors: Sturm Nico , Rundnagel Heike 
Published: October 2021

ZusammenfassungDer Beitrag geht, im Rahmen einer explorativen Vorgehensweise, den Fragen nach, inwieweit der Einsatz der digital angereicherten Methode eduScrum in der Hochschullehre den Kompetenzerwerb bei Studierenden sowohl in Bezug auf fachliche und personale als auch im Hinblick auf digitale Kompetenzen fördert. Hierzu werden im Rahmen von Veranstaltungsevaluationen vorgenommene Selbsteinschätzungen der Studierenden über den eigenen Kompetenzzuwachs herangezogen. Als Bezugspunkte für die in der Evaluation erstellten Fragen zur Einschätzung der Kompetenzentwicklung und zur Einordnung der aus diesen Betrachtungen generierten Ergebnisse dienen der „Deutsche Qualifikationsrahmen für Lebenslanges Lernen“ (DQR), der „Qualifikationsrahmen für deutsche Hochschulabschlüsse“ (HQR) und das „Digital Competence Framework for Citizens“ (DigComp 2.1).
Das Wissen und seine Gesellschaft
Authors: Jäckel Michael 
Published: October 2021

ZusammenfassungAls Diderot im 18. Jahrhundert sein Projekt einer Encyclopédie entwickelte, galt es als Versuch, den Kontinent zu erleuchten. Der Zugang zu Wissen sollte sich verändern – ein Beispiel aus vielen, das den Zusammenhang von Wissensordnung und Medienordnung zu verdeutlichen vermag. Dieser Prozess lässt sich historisch auch als eine Zunahme von Formenvielfalt beschreiben.Eine Formenvielfalt muss Institutionen, die eine Wissensordnung repräsentieren, auch dazu veranlassen, herkömmliche Strukturen mit neuen Optionen zu vergleichen. Das vollzieht sich aktuell im Hochschulwesen. In Lehre und Forschung entwickeln sich dadurch potenziell neue Reputationsfelder, auch außerhalb der herkömmlichen „Räume“. Der Beitrag analysiert diese Übergangssituation und verdeutlicht, wie diese Impulse in existierende Wissensordnungen einfließen.
Supersymmetry algebras in arbitrary signature and their R-symmetry groups
Authors: Gall L. , Mohaupt T. 
Published: October 2021

AbstractString theory, specifically type-II superstring theory, can be formulated in any ten-dimensional signature. To facilitate the study of supergravity and superstring theories in this setting, we present a uniform construction of supersymmetry algebras in arbitrary dimension and signature, which generalizes the ideas underlying symplectic Majorana spinors. In our formalism R-symmetry acts on an auxiliary multiplicity space which makes its action manifest. This allows us to provide extensive tables which list the R-symmetry groups of extended supersymmetry algebras for all signatures together with other useful information. Twisted (‘type-*’) supersymmetry algebras in Lorentz signature with non-compact R-symmetry groups are shown to be part of a general pattern resulting from the interplay between complex superbrackets and reality conditions. As an application we show how the relations between type-II string theories in ten and nine dimensions can be extracted from their supersymmetry algebras. We also use our results to determine the special geometry of vector and hypermultiplet scalar manifolds of four-dimensional$$ \mathcal{N} $$N= 2 and three-dimensional$$ \mathcal{N} $$N= 4 supergravity theories for all signatures.
Holographic JT gravity with quartic couplings
Authors: Rathi Hemant , Roychowdhury Dibakar 
Published: October 2021

Abstract
We construct the most general theory of 2D Einstein-dilaton gravity coupled with U(1) gauge fields that contains all the 2-derivative and the 4-derivative interactions allowed by the diffeomorphism invariance. We renormalise the 2D action and obtain the vacuum solution as well as the black hole solution. The vacuum solution in the UV is dominated by Lifshitz2 with dynamical exponent (z = $$ \frac{7}{3} $$

7
3

) while on the other hand, the spacetime curvature diverges as we move towards the deep IR limit. We calculate the holographic stress tensor and the central charge for the boundary theory. Our analysis shows that the central charge goes as the inverse power of the coupling associated to 4-derivative interactions. We also compute the Wald entropy for 2D black holes and interpret its near horizon divergence in terms of the density of states. We compare the Wald entropy with the Cardy formula and obtain the eigen value of Virasoro operator (L0) for our model. Finally, we explore the near horizon structure of 2D black holes and calculate the central charge corresponding to the CFT near horizon. We further show that the near horizon CFT may be recast as a 2D Liouville theory with higher derivative corrections. We study the Weyl invariance of this generalised Liouville theory and identify the Weyl anomaly associated to it. We also comment on the classical vacuum structure of the theory.
O(D,D)-covariant two-loop β-functions and Poisson-Lie T-duality
Authors: Hassler Falk , Rochais Thomas B. 
Published: October 2021

Abstract
We show that the one- and two-loop β-functions of the closed, bosonic string can be written in a manifestly O(D,D)-covariant form. Based on this result, we prove that1) Poisson-Lie symmetric σ-models are two-loop renormalisable and2) their β-functions are invariant under Poisson-Lie T-duality.Moreover, we identify a distinguished scheme in which Poisson-Lie symmetry is manifest. It simplifies the calculation of two-loop β-functions significantly and thereby provides a powerful new tool to advance into the quantum regime of integrable σ-models and generalised T-dualities. As an illustrating example, we present the two-loop β-functions of the integrable λ- and η-deformation.
A new kind of anomaly: on W-constraints for GKM
Authors: Morozov A. 
Published: October 2021

Abstract
We look for the origins of the single equation, which is a peculiar combination of W-constrains, which provides the non-abelian W-representation for generalized Kontsevich model (GKM), i.e. is enough to fix the partition function unambiguously. Namely we compare it with the scalar projection of the matrix Ward identity. It turns out that, though similar, the two equations do not coincide, moreover, the latter one is non-polynomial in time-variables. This discrepancy disappears for the cubic model if partition function is reduced to depend on odd times (belong to KdV sub-hierarchy of KP), but in general such reduction is not enough. We consider the failure of such direct interpretation of the “single equation” as a new kind of anomaly, which should be explained and eliminated in the future analysis of GKM.
Linearized supergravity with a dynamical preferred frame
Authors: Marakulin Arthur , Sibiryakov Sergey 
Published: October 2021

AbstractWe study supersymmetric extension of the Einstein-aether gravitational model where local Lorentz invariance is broken down to the subgroup of spatial rotations by a vacuum expectation value of a timelike vector field called aether. Embedding aether into a chiral vector superfield, we construct the most general action which describes dynamics of linear perturbations around the Lorentz-violating vacuum and is invariant under the linearized supergravity transformations. The analysis is performed both in the off-shell non-minimal superfield formulation of supergravity and in the “on-shell” approach invoking only physical component fields. The resulting model contains a single free coupling, in addition to the standard supergravity parameters. The spectrum of physical excitations features an enhanced on-shell gravity multiplet comprising four states with helicities 2, 3/2, 3/2 and 1 propagating with superluminal velocity. The remaining excitations propagate with the speed of light. We outline the observational constraints on the model following from its low-energy phenomenology.
Well-being of children born after medically assisted reproduction
Authors: Goisis Alice , Myrskylä Mikko 
Published: October 2021

Abstract
Background
The increasing number and proportion of children born after medically assisted reproduction (MAR) has raised concerns and motivated research about the impact of MAR on the well-being and development of children.

Objective
We summarize existing studies on the well-being and development of children conceived through MAR.

Materials and methods
Review of existing studies.

Results
Children conceived through MAR are at increased risk of adverse birth outcomes such as low birthweight and preterm delivery compared to naturally conceived children. The higher rates of multiple births amongst MAR-conceived children continue to represent an important driving factor behind these disparities. Reassuringly, elective single embryo transfer (eSET)—which is associated with more favourable pregnancy outcomes among MAR-conceived children—is becoming more common. Despite the early life health disadvantages, the evidence on later life outcomes such as physical, cognitive and psychosocial development is generally reassuring. On average, MAR-conceived children show similar or better outcomes than naturally conceived children. The selected and advantaged socioeconomic characteristics of parents who conceive through MAR are likely to play an important role in explaining why, on average, MAR-conceived children perform better than naturally conceived children—particularly in terms of cognitive outcomes. In contrast, there is some evidence pointing to potentially increased risks of mental health problems among MAR-conceived children.

Conclusion
There is need for continued monitoring and longer follow-up studies on the well-being of these children in order to better understand whether their outcomes are similar to or different from those of naturally conceived children, and, if so, why.
Medialer und lateraler Meniskuskorbhenkelriss mit vorderer Kreuzbandruptur
Authors: Bernecker Georg-Antonio , Hudetz Damir , Hirschmann Michael T. , Röhm Julian 
Published: October 2021

ZusammenfassungDiese Kasuistik beschreibt den Fall und die Rekonstruktion einer kombinierten medialen und lateralen Korbhenkelläsion des Meniskus mit vorderer Kreuzbandruptur. Als Technik wurde eine Kombination aus Outside-in- und All-inside-Nahttechniken sowie ein ipsilateraler vierfacher Hamstring-Autograft in All-inside-Technik angewendet. Eine 47-jährige Patientin zog sich im Rahmen eines Fahrradsturzes ein Außenrotations-Valgusstress-Trauma des linken Kniegelenks zu. In der Magnetresonanztomographie (MRT) zeigte sich das für die Kombinationsverletzung typische Vierfach-Zeichen, welches auch als Jack-and-Jill-Läsion beschrieben wird. Die Rekonstruktion erfolgte 2 Wochen nach dem Unfall. Eine postoperative Arthrofibrose mit limitierter Knieflexion machte 4 Monate nach initialer Operation eine Revisionsarthroskopie mit Arthrolyse notwendig. Sechs Wochen nach Arthrolyse war die Patientin weiterhin asymptomatisch und erreichte eine aktive Knieflexion von 130°. Die Intention dieser Kasuistik war die Beschreibung dieser seltenen aber komplexen Knieverletzung außerhalb des professionellen Sportbereichs sowie deren operative Versorgung. Die klinischen und radiologischen Verlaufskontrollen zeigten eine regelrechte Rekonstruktion und Reorganisation des medialen und lateralen Meniskus sowie des vorderen Kreuzbands bei freiem und schmerzlosem Bewegungsumfang des Kniegelenks.
Ethics-based auditing of automated decision-making systems: intervention points and policy implications
Authors: Mökander Jakob , Axente Maria 
Published: October 2021

AbstractOrganisations increasingly use automated decision-making systems (ADMS) to inform decisions that affect humans and their environment. While the use of ADMS can improve the accuracy and efficiency of decision-making processes, it is also coupled with ethical challenges. Unfortunately, the governance mechanisms currently used to oversee human decision-making often fail when applied to ADMS. In previous work, we proposed that ethics-based auditing (EBA)—that is, a structured process by which ADMS are assessed for consistency with relevant principles or norms—can (a) help organisations verify claims about their ADMS and (b) provide decision-subjects with justifications for the outputs produced by ADMS. In this article, we outline the conditions under which EBA procedures can be feasible and effective in practice. First, we argue that EBA is best understood as a ‘soft’ yet ‘formal’ governance mechanism. This implies that the main responsibility of auditors should be to spark ethical deliberation at key intervention points throughout the software development process and ensure that there is sufficient documentation to respond to potential inquiries. Second, we frame AMDS as parts of larger sociotechnical systems to demonstrate that to be feasible and effective, EBA procedures must link to intervention points that span all levels of organisational governance and all phases of the software lifecycle. The main function of EBA should, therefore, be to inform, formalise, assess, and interlink existing governance structures. Finally, we discuss the policy implications of our findings. To support the emergence of feasible and effective EBA procedures, policymakers and regulators could provide standardised reporting formats, facilitate knowledge exchange, provide guidance on how to resolve normative tensions, and create an independent body to oversee EBA of ADMS.
Food, farming and trade on the Danube frontier: plant remains from Roman Aelia Mursa (Osijek, Croatia)
Authors: Reed Kelly , Leleković Tino , Lodwick Lisa , Fenwick Rhona , Pelling Ruth , Kroll Helmut 
Published: October 2021

AbstractArchaeobotanical investigations at the Roman town of Aelia Mursa, located near the Danube frontier in modern day Croatia, have revealed an extraordinary assemblage of food remains from a series of pits dated to the early 2nd centuryad. The site yielded a wide array of economically important food remains, including staples such asHordeum(barley),Panicum miliaceum(broomcorn millet),Triticum aestivum(bread wheat),Secale cereale(rye),Lens culinaris(lentil) andVicia faba(broad bean). We also found a range of fruits, nuts, herbs and vegetables, such asDaucus carota(carrot),Cichorium intybus(chicory),Allium sativum(garlic),Ficus carica(fig),Vitis vinifera(grape) andOlea europaea(olive). Further, we found clearly identifiable remains of eggshell, fish bones and scales, unidentifiable fruit flesh and porridge or bread remains, as well as possible animal dung. The site provides important evidence of exotic foods includingPiper nigrum(pepper),Oryzasp. (rice) andPunica granatum(pomegranate). This diverse and unique assemblage provides a tantalising insight into the character of food, farming and trade of the people living on the frontier of the Roman Empire.
Impact of COVID-19 on gynaecological patient care: results of patient’s survey with 327 patients
Authors: Recker F. , Dohmen S. , Egger E. K. , Stope M. B. , Dimitrova D. , Könsgen D. , Ritter M. , Sehouli J. , Bondio M. Gadebusch , Mustea A. 
Published: October 2021

Abstract
Purpose
The pandemic SARS-CoV-2 poses new and unprecedented challenges for health care systems on a national and global level. Although the current situation has been going on for more than 1 year, there is limited data on the impact of the pandemic on general hospital and medical practice care. This survey captures the perspective of patients with gynaecological diseases of this impact.

Methods
Using a paper-based questionnaire, 327 patients were asked about medical care and their experiences during the pandemic at the University Hospital Bonn and the University Hospital Charité Berlin. The study was performed from the 1st June to 30th September 2020.

Results
A total of 327 patients participated in the study: 156 stated to have been tested for coronavirus, and 1 patient reported a positive test. 41.3% of the patients felt insecure about the current situation, 30.4% were concerned about the risk of infection during the hospital stay. The pandemic-specific measures in hospitals and medical practices unsettled 6.8% of patients. 18.1% of patients feared that their gynaecological disease would not be treated adequately due to the pandemic. 55.7% of patients reported that their confidence in their physicians has increased during the pandemic.

Conclusion
The results show that patients’ confidence in the healthcare system and the physicians acting significantly increased during the COVID-19 crisis. Transparent and comprehensive information policy regarding actions and restrictions within the COVID-19 crisis eases patients concerns and improves patients’ confidence in their physicians, which is crucial for a successful treatment’s outcome.
Pregnant and breastfeeding women’s attitudes and fears regarding the COVID-19 vaccination
Authors: Schaal Nora K. , Zöllkau Janine , Hepp Philip , Fehm Tanja , Hagenbeck Carsten 
Published: October 2021

Abstract
Purpose
The COVID-19 vaccination is probably the most important source to fight the COVID-19 pandemic. However, recommendations and possibilities for vaccination for pregnant and breastfeeding women are inconsistent and dynamically changing.

Methods
An anonymous, online, cross-sectional survey was conducted among pregnant and breastfeeding women in Germany between 30th March and 19th April 2021 addressing COVID-19 vaccination attitudes including the underlying reasons for their decision. Additionally, anxiety regarding a SARS-CoV-2 infection and a symptomatic course of the infection were evaluated.

Results
In total, 2339 women (n = 1043 pregnant and n = 1296 breastfeeding) completed the survey. During pregnancy the majority (57.4%) are not in favour of receiving the vaccine, 28.8% are unsure and only 13.8% would get vaccinated at the time of the survey. In contrast, 47.2% would be in favour to receive the vaccine, if more scientific evidence on the safety of the vaccination during pregnancy would be available. Breastfeeding women show higher vaccination willingness (39.5% are in favour, 28.1% are unsure and 32.5% not in favour). The willingness to be vaccinated is significantly related to the women’s anxiety levels of getting infected and to develop disease symptoms. Main reasons for vaccination hesitancy are the women’s perception of limited vaccination-specific information, limited scientific evidence on vaccination safety and the fear to harm the fetus or infant.

Conclusions
The results provide important implications for obstetrical care during the pandemic as well as for official recommendations und information strategies regarding the COVID-19 vaccination.
Investigating time-based expectancy beyond binary timing scenarios: evidence from a paradigm employing three predictive pre-target intervals
Authors: Aufschnaiter Stefanie , Zhao Fang , Gaschler Robert , Kiesel Andrea , Thomaschke Roland 
Published: October 2021

AbstractWhen the duration of a pre-target interval probabilistically predicts the identity of the target, participants typically form time-based expectancies: they respond faster to frequent interval-target combinations than to infrequent ones. Yet, previous research investigating the cognitive time-processing mechanisms underlying time-based expectancy assessed time-based expectancy always in situations with a binary set of intervals (i.e. short vs. long). Here we aim to test whether time-based expectancy transfers to more complex settings with three different predictive time intervals (short, medium, long) in which each predicts one of three different target stimuli with 80% probability. In three experiments we varied how the medium interval was computed (arithmetic mean, geometric mean, or in between both). Our results showed that participants were able to learn the time-event contingencies for the short and the long as well as for the medium interval, and were, thus able to flexibly redirect their target expectancy two times during the course of a trial. The evidence concerning the impact of the manipulation of the medium intervals’ absolute duration on time-based expectancy was, however, mixed, as time-based expectancy for the medium interval could only be observed in one of three reported experiments. In sum, the findings of the present study suggest a previously unknown cognitive flexibility underlying time-based expectancy and offer important theoretical implications, challenging future research on the timing mechanisms involved in time-based expectancy.