@article{66836, abstract = {{This qualitative case study investigates how automated feedback from a widely accessible digital curriculum resource influences students’ mathematics learning. Drawing on a dialogic feedback framework, the study analyzes students’ feedback processes in an ecologically valid learning context. Grounded in a sociocultural perspective, the framework integrates Carless’ dialogic conceptualization of feedback, Shute’s feedback typology, and Vergnaud’s scheme theory. Eight eighth-graders from a German secondary school worked individually on percentage problems at home, video-recorded via online conferencing. Data included screen recordings and think-aloud protocols, which were analyzed using qualitative text analysis. Results reveal large individual differences in feedback processes—students vary in when and how they access feedback messages and how they make sense of them. Successfully solving a task after feedback does not always indicate understanding; in some cases, feedback aided procedural completion without conceptual insight. The effectiveness depended on the alignment between task design, feedback message content, and students’ actual difficulties. The study concludes that qualitative analysis of feedback processes with digital technologies in ecologically valid settings is necessary to target specific student difficulties and promote learning.}}, author = {{Rezat, Sebastian}}, issn = {{1863-9690}}, journal = {{ZDM – Mathematics Education}}, publisher = {{Springer Science and Business Media LLC}}, title = {{{Students’ mathematical feedback processes using a digital curriculum resource: A qualitative perspective}}}, doi = {{10.1007/s11858-026-01821-4}}, year = {{2026}}, } @techreport{65862, abstract = {{This study examines how private peers’ disclosure transparency affects public firms’ information environment, captured through analyst forecast behavior. Focusing on the most important private firms operating in U.S. industries, we investigate whether private peer disclosure—despite differing substantially from public firm disclosure—is incorporated into analysts’ forecasts. In a cross-sectional analysis, we document lower forecast quality in industries where private peers’ disclosure intensity is low. In contrast, when private peers’ disclosure intensity is high, forecast quality does not differ from that in industries with only public peers. We find consistent results for a subsample of U.S. private peers. Consistent with this interpretation, a difference-in-differences analysis documents increased analyst forecast activity around the disclosure dates of private peers. Together, these findings indicate that analysts incorporate private peers’ information when these peers are both economically important and sufficiently transparent, and highlight that variation in private firms’ disclosure intensity generates heterogenous externalities for public firms. Overall, our evidence supports a cost-benefit trade-off in analysts’ information acquisition, and, by documenting the relevance of private peers’ information for public firms, contributes to the debate on the externalities of private firms’ disclosure transparency.}}, author = {{Beyer, Bianca and Flagmeier, Vanessa and Kosi, Urska}}, issn = {{1556-5068}}, publisher = {{TRR 266 Accounting for Transparency}}, title = {{{Private Peers’ Disclosure Transparency and Public Firms’ Information Environment}}}, doi = {{10.2139/ssrn.4438123}}, year = {{2026}}, } @techreport{66347, author = {{Rahali, Mahdi and Kosi, Urska and Gassen, Joachim}}, title = {{{The spatial and sectoral incidence of Germany’s COVID-19 insolvency gap}}}, year = {{2026}}, } @techreport{65896, author = {{Böing, Dennis and Kosi, Urska}}, title = {{{Dissemination of information by small caps}}}, year = {{2026}}, } @book{65644, abstract = {{Eine zentrale Herausforderung in der Professionalisierung pädagogischer Fach- und Lehrkräfte besteht in der Relation von eher theoretischen und praktischen Ausbildungsbestandteilen. Beispielsweise fühlen sich angehende Lehrkräfte durch ihr Studium häufig nicht ausreichend auf die beruflichen Anforderungen vorbereitet. Daher wird verstärkt versucht, Curricula von Ausbildungs- und Studiengängen deutlicher an den tatsächlichen professionellen Handlungsanforderungen zu orientieren und auch in frühen Ausbildungsphasen verstärkt Elemente beruflicher Praxis zu integrieren. Dieser Band nimmt die Handlungsorientierung in der Ausbildung von Lehrkräften und pädagogischen Fachkräften theoretisch-konzeptionell sowie empirisch in den Blick. Zudem werden innovative Lehransätze aufgezeigt, die den Fokus auf eine Stärkung einer solchen Handlungsorientierung legen, z.B. durch simulationsbasierte Lern- und Prüfungsformate. Es handelt sich um den zweiten Band der Reihe Paderborner Beiträge zur Bildungsforschung und Lehrkräftebildung, die von der PLAZ – Professional School of Education herausgegeben wird.}}, editor = {{Vogelsang, Christoph and Grotegut, Lea and Bruns, Julia and Riese, Josef and Fechner, Sabine}}, isbn = {{9783818801052}}, publisher = {{Waxmann Verlag GmbH}}, title = {{{Handlungsorientierung in der Ausbildung von Lehrkräften und pädagogischen Fachkräften. Konzeptionen und Forschungsperspektiven}}}, doi = {{10.31244/9783818851057}}, year = {{2026}}, } @inbook{66861, author = {{Mindt, Ilka}}, booktitle = {{Evolving Englishes}}, isbn = {{9781003522041}}, publisher = {{Routledge}}, title = {{{Authentic Englishes.nrw: Digital teaching and learning materials for varieties of English}}}, doi = {{10.4324/9781003522041-13}}, year = {{2026}}, } @inproceedings{66864, abstract = {{When signing digital documents, users often insert scanned or digitized handwritten signatures, which provide no assurance of a document’s authenticity and integrity. Cryptographic signatures offer such guarantees, but are rarely adopted due to persistent usability challenges. This paper explores the potential of digital identity wallets for securely and intuitively signing documents with verified personal data. To this end, we developed IdentitySign, an open-source prototype application, and evaluated it through a user study (N=74). Our results indicate good usability but also reveal potential pitfalls for this and similar wallet-based signature applications, such as unjustified trust in documents with signatures that are cryptographically valid but signed by the wrong signer. We provide guidelines and insights for creating user-centric, secure, and trustworthy digital signage applications using identity wallets.}}, author = {{Last, Yorick}}, booktitle = {{Proceedings of the Twenty-Second Symposium on Usable Privacy and Security}}, location = {{Hannover, Germany}}, title = {{{IdentitySign: Design and User Study of a Prototype Application for Digitally Signing Documents Using an Identity Wallet}}}, year = {{2026}}, } @article{66480, abstract = {{Background – This study draws on data from a larger international project exploring parents' perceptions of the education of their children with special educational needs and/or disabilities (SEND). Using responses from 1, 309 parents in Australia, England, Germany, and Norway it examines parental satisfaction with mainstream and special schools, and parents' school placement preferences, including willingness to change schools. Parental satisfaction is assessed as an overall evaluation of how well the child's school placement meets their needs, without distinguishing between specific aspects of the school experience. The study also explores whether the child's level of support is associated with these perceptions. Based on a human rights perspective, we highlight parents’ perspectives and their role in the development of more inclusive education systems, without promoting one model of schooling over another. Methods – Responses from 1, 309 parents across four countries were analysed using descriptive and inferential statistics. Non-parametric tests compared satisfaction across school types, chi-squared tests assessed associations with willingness to change schools, and binary logistic regression examined whether level of support was associated with parents' willingness to change school placement. Results – Parents in England, Germany, and Norway reported higher satisfaction with special schools than with mainstream schools. No statistically significant difference was observed in Australia. Parents of children in special schools were less likely to report considering changing schools, particularly in England and Norway. Higher pupil support needs were significantly associated with parents’ willingness to change school across the combined sample. These findings suggest that parental satisfaction with their child's education and their preferences regarding school placement may be shaped by both school type and how well pupils' support needs are perceived to be met. Discussion and conclusion – The role of parents as key stakeholders in developing inclusive education systems, consistent with the Convention on the Rights of Persons with Disabilities (CRPD) is emphasised. While parents in special schools in three of the four countries reported higher satisfaction, the reasons for this remain unclear. Understanding the factors shaping parental satisfaction is essential for developing inclusive and responsive learning environments. These findings offer a starting point for future research on how education systems can better align policy commitments with families’ lived experiences.}}, author = {{Johansson, Veslemøy Maria Fossum and Gibson, Suanne and Woodcock, Stuart and Dechsling, Anders and Kullmann, Harry and Herrebrøden, Marte Karoline and Ulriksen, Line Britt and Nordahl-Hansen, Anders}}, issn = {{2504-284X}}, journal = {{Frontiers in Education}}, keywords = {{human rights, inclusion, inclusive education, international study, parents, school development, special educational needs}}, publisher = {{Frontiers Media SA}}, title = {{{Parental (dis)satisfaction with school placement to achieve inclusion: a cross-country comparison}}}, doi = {{10.3389/feduc.2026.1710708}}, volume = {{11}}, year = {{2026}}, } @inbook{44862, author = {{Peckhaus, Volker}}, booktitle = {{New Perspectives on Neo-Kantianism and the Sciences}}, editor = {{Pulte, Helmut and Baedke, Jan and Koenig, Daniel and Nickel, Gregor}}, pages = {{17--37}}, publisher = {{Routledge}}, title = {{{(Neo-)Kantian Foundation of Foundations: The Göttingen Case}}}, year = {{2025}}, } @article{32099, author = {{Weich, Tobias and Budde, Julia}}, journal = {{Journal of Functional Analysis}}, number = {{1}}, title = {{{Wave Front Sets of Nilpotent Lie Group Representations}}}, doi = {{ https://doi.org/10.1016/j.jfa.2024.110684}}, volume = {{288}}, year = {{2025}}, } @inbook{56854, author = {{Schuster, Britt-Marie and Bubenhofer, Noah}}, booktitle = {{Germanistische Linguistik. Genese, Zustand und Zukunft eines Faches im Spiegel der RGL}}, editor = {{Schuster, Britt-Marie and Bubenhofer, Noah and Habermann, Mechthild and Hausendorf, Heiko}}, pages = {{1--18}}, publisher = {{de Gruyter}}, title = {{{Facetten der Germanistischen Linguistik: Bestandsaufnahme und Perspektiven}}}, year = {{2025}}, } @book{56851, editor = {{Schuster, Britt-Marie and Bubenhofer, Noah and Habermann, Mechthild and Hausendorf, Heiko}}, title = {{{Germanistische Linguistik. Genese, Zustand und Zukunft eines Faches im Spiegel der RGL}}}, volume = {{336}}, year = {{2025}}, } @article{56960, author = {{Black, Tobias}}, issn = {{0893-9659}}, journal = {{Applied Mathematics Letters}}, publisher = {{Elsevier BV}}, title = {{{Absence of dead-core formations in chemotaxis systems with degenerate diffusion}}}, doi = {{10.1016/j.aml.2024.109361}}, volume = {{161}}, year = {{2025}}, } @inbook{57020, abstract = {{AbstractIn this symposium we investigate students’ agency of selecting and using (digital) resources for developing their own learning paths. For that, we first review the literature related to students’ selection and use of resources in mathematics education in different pedagogical settings (presentation 1). Second, we develop insights from the different studies that participate in this symposium (presentation 2–6), at school as well as at university level. Results show that attempts have been made to provide students opportunities to develop agency of their mathematics learning, in particular with the development and provision of numerous digital tools and learning resources at university level and related to innovative pedagogical approaches. At the same time, it is not obvious how these tools and resources help students to develop deeper conceptual understandings. Certainly, students often ‘demand’ more student-centered and autonomous education approaches (e.g., at university level), also in mathematics education. Further, it seems that authentic problem-based education approaches are more motivating for students. These ‘innovative’ approaches necessitate particular types of structure and support for students. Moreover, they require different ways of providing resources that students can and want to interact with, and that help students to navigate through the curriculum to develop their own learning paths. At the same time, teachers also need support on how to orchestrate student learning with the available resources in such environments, so to be able to attend to students’ individual needs. The symposium comprised altogether six presentations:Birgit Pepin & Sebastian Rezat: Students’ agency of selecting and using (digital) resources for developing their own learning paths: An overviewAnnalisa Cusi & Agnese I. Telloni: Learning through digital curriculum resource design: students’ reflections on their role as designersVilma Mesa, Lelia Burley-Sanford, Xinyi Hao, & Carlos Quiroz: Interactive features in university textbooks and their use by teachers and studentsSebastian Rezat: Fostering university students’ reading and understanding of mathematical text in a flipped classroom approach with a digital marking toolBirgit Pepin & Ulises Salinas: Challenge/problem-based mathematics learning at university level: The case of the modeling weekFarzad Radmehr: Problem-posing: An inclusive activity for improving teaching and learning of mathematics at university level}}, author = {{Pepin, Birgit and Rezat, Sebastian}}, booktitle = {{Recent Advances in Mathematics Textbook Research and Development}}, editor = {{Qi, Chunxia and Fan, Lianghuo and Liu, Jian and Liu, Qimeng and Dong, Lianchun}}, isbn = {{9789819784257}}, pages = {{123–126}}, publisher = {{Springer Nature}}, title = {{{Symposium—Towards innovative practices in mathematics education: Teachers’ and students’ choice and use of digital resources}}}, doi = {{10.1007/978-981-97-8426-4_17}}, year = {{2025}}, } @inbook{57022, abstract = {{AbstractEven in the digital age, learning mathematics at an academic level still requires much interaction with mathematical texts. Understanding and developing disciplinary literacy skills at all levels is an increasing matter of interest.}}, author = {{Rezat, Sebastian}}, booktitle = {{Recent Advances in Mathematics Textbook Research and Development}}, editor = {{Qi, Chunxia and Fan, Lianghuo and Liu, Jian and Liu, Qimeng and Dong, Lianchun}}, isbn = {{9789819784257}}, pages = {{133–136}}, publisher = {{Springer Nature}}, title = {{{Fostering university students’ reading and understanding of mathematical text in a flipped classroom approach with a digital marking tool}}}, doi = {{10.1007/978-981-97-8426-4_20}}, year = {{2025}}, } @inbook{56852, author = {{Schuster, Britt-Marie and Georgi, Christopher}}, booktitle = {{Germanistische Linguistik. Genese, Zustand und Zukunft eines Faches im Spiegel der RGL}}, editor = {{Schuster, Britt-Marie and Bubenhofer, Noah and Habermann, Mechthild and Hausendorf, Heiko}}, pages = {{189–220}}, publisher = {{de Gruyter}}, title = {{{Beispiele geben, Belege anführen und Daten erheben. Diachrone Untersuchung zur Herstellung empirischer Evidenz}}}, volume = {{336}}, year = {{2025}}, } @inproceedings{58227, author = {{Brockmeier, Jan and Kruse, Stephan and Scheytt, J. Christoph}}, booktitle = {{German Microwave Conference 2025}}, location = {{Dresden}}, title = {{{A Mach-Zehnder-Modulator based FMCW Lidar Emulator in C-Band}}}, year = {{2025}}, } @inbook{58313, author = {{Mildorf, Jarmila}}, booktitle = {{Pandemic Storytelling}}, editor = {{Alber, Jan and de Muijnck, Deborah and Jumpertz, Jessica }}, isbn = {{978-90-04-51985-5 }}, pages = {{83--96}}, publisher = {{Brill}}, title = {{{Crisis and Creativity: Poetry in Times of Corona}}}, volume = {{3}}, year = {{2025}}, } @article{58351, author = {{Godau, Marc and Maxelon, Dominik and Neuhausen, Timo}}, journal = {{Auditive Medienkulturen. ‘The Evolution of Sound’? Soundkulturelle Praktiken in Social Media-Mikroformaten}}, keywords = {{Algorithmen, Musikpraxis, Postdigitalität, Songwriting, TikTok}}, title = {{{Algorithmische Hyperawareness im Songwriting von Plattform-Musiker:innen. Postdigitale Subjektivität und die Transformation musikkultureller Praktiken auf TikTok und Co.}}}, year = {{2025}}, } @article{58353, abstract = {{Abstract Statistics and machine learning are critical because they play an essential role in our everyday lives and the careers we may pursue in the future. It may be beneficial to introduce machine learning, such as decision trees (DTs), at an early stage of education. The data-based construction of DTs is an example of a machine learning process, which can be addressed in mathematics or statistics teaching because of relatively low prior knowledge requirements. This paper focuses on investigating how sixth-grade students create and evaluate data-based DTs. The basis is a teaching unit that aims to lay the foundation for machine learning and enhance students’ understanding of the process. We investigate students’ processes in detail while they build DTs with data cards about food items to predict whether a new item is recommendable. After the teaching unit, an interview study examines students’ strategies for creating decision trees. The findings contribute to understanding students’ learning processes and the challenges when working with decision trees.}}, author = {{Podworny, Susanne and Biehler, Rolf and Fleischer, Yannik}}, issn = {{1863-9690}}, journal = {{ZDM – Mathematics Education}}, publisher = {{Springer Science and Business Media LLC}}, title = {{{Young students’ engagement with data to create decision trees}}}, doi = {{10.1007/s11858-024-01649-w}}, year = {{2025}}, }