@article{61523, abstract = {{AbstractMetasurface holography offers a powerful approach for manipulating wavefronts at the nano and micro scale. Extensive research has been conducted to enhance the multiplexing capacity for diverse wavefronts. However, the independence of multiplexed channels is fundamentally restricted in techniques using single‐layer metasurfaces, resulting in unavoidable crosstalk and the need for post‐filtering of the output wavefronts. Here, a universal wavefront multiplexing concept is presented based on non‐injective transformation. By employing joint optimization on two metasurfaces, different channels can be independently designed without any constraints on the output wavefronts. To validate this approach, ultra‐compact orbital angular momentum (OAM) sorters are designed. In these experiments, the output beams from different channels can be independently mapped to 2D positions with high fineness. In another application of wavefront‐multiplexed holography, 10‐channel multiplexing is experimentally achieved with minimal crosstalk and without the need for post‐processing. These results demonstrate the independence between channels enabled by the non‐injective transformation in the method. The precise wavefront control and high multiplexing capacity underscore its potential for scalable wavefront manipulation devices.}}, author = {{Jin, Xiao and Zentgraf, Thomas}}, issn = {{0935-9648}}, journal = {{Advanced Materials}}, publisher = {{Wiley}}, title = {{{Independent Wavefront Multiplexing with Metasurfaces via Non‐Injective Transformation}}}, doi = {{10.1002/adma.202511823}}, volume = {{38}}, year = {{2026}}, } @inproceedings{64872, author = {{Buhl, Heike M. and Fisher, Josephine Beryl and Rohlfing, Katharina J.}}, booktitle = {{Proceedings of the 3rd TRR 318 Conference: Contextualizing Explanations}}, editor = {{Cimiano, Philipp and Paassen, Benjamin and Vollmer, Anna-Lisa}}, publisher = {{Bielefeld University Press}}, title = {{{Cognitive and Interactive Adaptivity to the Explainee in an Explanatory Dialogue: An Experimental Study}}}, doi = {{10.64136/gumb4700}}, year = {{2026}}, } @article{35700, author = {{Webersen, Yvonne and Delle, Anna Luisa}}, journal = {{Plus Lucis}}, pages = {{20--23}}, title = {{{Physikalische Pseudowissenschaften entlarven am Beispiel von „WaveGuard – der Handyhülle für den gesunden Schlaf“}}}, volume = {{01/2026}}, year = {{2026}}, } @article{61221, author = {{Jimenez, Patricia}}, journal = {{Ethnography & Education}}, title = {{{The Accomplishment of Rights, Obligations and other Expectation: Attending to the Lived Details of Classroom Order to Consider the Ethnographic Grasp of ‘Elusive Emotions’}}}, year = {{2026}}, } @inbook{61220, abstract = {{This chapter presents recurring structures of interactions—and their associated goals—as they occur in explaining processes. It explores how explanations are not delivered in isolation but unfold through dynamic, structured sequences of interaction between participants. Beginning with the smallest units, we examine how individual dialog acts and multimodal signals form micro-patterns within turns. These, in turn, compose meso-level structures such as pragmatic frames, that organize sequences of interaction into meaningful, goal-oriented episodes. At the macro-level, we identify common types of explanatory dialogues, such as inquiry, information-seeking, or deliberation, which are shaped by participants’ goals and situational demands. The chapter highlights how these abstract patterns of structure are instantiated differently across social and situational contexts and proposes that understanding them is crucial for designing socially intelligent and adaptive XAI systems. By analyzing how these structures emerge and function, we o!er a framework for operationalizing explanation structures in a way that supports co-constructive and context-sensitive human-AI interaction.}}, author = {{Jimenez, Patricia and Vollmer, Anna Lisa and Wachsmuth, Henning }}, booktitle = {{Social Explainable AI: Communications of NII Shonan Meetings}}, editor = {{Rohlfing, Katharina and Främling, Kary and Lim, Brian and Alpsancar, Suzana and Thommes, Kirsten}}, publisher = {{Springer Singapore}}, title = {{{Structures Underlying Explanations}}}, year = {{2026}}, } @inbook{57744, author = {{Büttner, Denise}}, booktitle = {{Subjektivierungstheoretische Fachunterrichtsforschung – Erziehungswissenschaft und Fachdidaktiken im Gespräch}}, editor = {{Kuhlmann, Nele and Rabenstein, Kerstin and Roose, Hanna}}, publisher = {{Universitätsverlag Göttingen}}, title = {{{Wie Deutschunterricht zum ‚monolingualen Normraum der Fähigen‘ wird - Ein Blick auf sprachbezogene Subjektivierung im Medium der unterrichtlichen Sache}}}, volume = {{23}}, year = {{2026}}, } @book{36851, abstract = {{Wie kann sozialpädagogisches Handeln erlernt und gelehrt werden? Die Qualifizierungswege für sozialpädagogische Fachkräfte sind vielfältig, mitunter widersprüchlich und in verschiedenen Ebenen eingelagert, von Berufsfachschulen, Fachschulen, Fachhochschulen bis hin zu universitären Studiengängen. Ebenso vielfältig sind die beruflichen Anforderungen an sozialpädagogische Fachkräfte. Der Sammelband widmet sich den unterschiedlichen Zugängen zu einer Didaktik der Sozialpädagogik in Bezug auf die Bildungs-, Lern- und Qualifizierungsprozesse zukünftiger sozialpädagogischer Fachkräfte sowie Lehramtsstudierender mit der beruflichen Fachrichtung Sozialpädagogik.}}, editor = {{Göddertz, Nina and Karber, Anke}}, isbn = {{978-3-8474-2610-3 }}, keywords = {{Ausbildung Kita-Fachkraft, Ausbildung Soziale Arbeit, Care-Berufe, didaktische Grundlagen, Erzieher*innen-Ausbildung, Erzieher-Ausbildung, Fachkräftemangel, Fachrichtung Sozialpädagogik, Lehramt Sozialpädagogik, schulische Ausbildung, soziale Berufe, Sozialpädagogik unterrichten, Sozialpädagogische Ausbildungsgänge, Sozialwesen, Unterricht Soziale Arbeit}}, pages = {{250}}, publisher = {{Barbara Budrich}}, title = {{{Wege zu einer Didaktik der Sozialpädagogik}}}, year = {{2026}}, } @inproceedings{62892, author = {{Schemel, Nele and Tenberge, Claudia}}, location = {{Norrköping, Sweden}}, title = {{{Spiral curricula for 21st-century technology education: Fostering digital and mechanical technology problem-solving}}}, year = {{2026}}, } @inproceedings{62894, author = {{Schneider, Lea and Tenberge, Claudia }}, location = {{PATT 43, Pupils' Attitudes Towards Technology Conference, 2026, Norrköping, Sweden}}, title = {{{The role of teachers’ interest and self-efficacy in implementing technological topics in primary education }}}, year = {{2026}}, } @unpublished{62723, abstract = {{Structural measures of graphs, such as treewidth, are central tools in computational complexity resulting in efficient algorithms when exploiting the parameter. It is even known that modern SAT solvers work efficiently on instances of small treewidth. Since these solvers are widely applied, research interests in compact encodings into (Q)SAT for solving and to understand encoding limitations. Even more general is the graph parameter clique-width, which unlike treewidth can be small for dense graphs. Although algorithms are available for clique-width, little is known about encodings. We initiate the quest to understand encoding capabilities with clique-width by considering abstract argumentation, which is a robust framework for reasoning with conflicting arguments. It is based on directed graphs and asks for computationally challenging properties, making it a natural candidate to study computational properties. We design novel reductions from argumentation problems to (Q)SAT. Our reductions linearly preserve the clique-width, resulting in directed decomposition-guided (DDG) reductions. We establish novel results for all argumentation semantics, including counting. Notably, the overhead caused by our DDG reductions cannot be significantly improved under reasonable assumptions.}}, author = {{Mahmood, Yasir and Hecher, Markus and Groven, Johanna and Fichte, Johannes K.}}, booktitle = {{Pre-print of paper accepted at AAAI 2026}}, title = {{{Structure-Aware Encodings of Argumentation Properties for Clique-width}}}, year = {{2026}}, } @unpublished{62721, abstract = {{We introduce the notion of contrastive ABox explanations to answer questions of the type "Why is a an instance of C, but b is not?". While there are various approaches for explaining positive entailments (why is C(a) entailed by the knowledge base) as well as missing entailments (why is C(b) not entailed) in isolation, contrastive explanations consider both at the same time, which allows them to focus on the relevant commonalities and differences between a and b. We develop an appropriate notion of contrastive explanations for the special case of ABox reasoning with description logic ontologies, and analyze the computational complexity for different variants under different optimality criteria, considering lightweight as well as more expressive description logics. We implemented a first method for computing one variant of contrastive explanations, and evaluated it on generated problems for realistic knowledge bases.}}, author = {{Koopmann, Patrick and Mahmood, Yasir and Ngonga Ngomo, Axel-Cyrille and Tiwari, Balram}}, booktitle = {{Pre-print of paper accepted at AAAI 2026}}, title = {{{Can You Tell the Difference? Contrastive Explanations for ABox Entailments}}}, year = {{2026}}, } @inbook{62947, author = {{Grandrath, Rebecca and Cornelius, Soraya and Pollmeier, Pascal and Fechner, Sabine and Bohrmann-Linde, Claudia and Rubner, Isabel}}, booktitle = {{Sammelband MINT in der Buchreihe Kompetenzzentren für digital gestützte Schul- und Unterrichtsentwicklung}}, keywords = {{Bildung für nachhaltige Entwicklung, BNE, Nachhaltigkeit, Digitalisierung, Digital, KI, Künstliche Intelligenz, Chemie, Chemieunterricht}}, title = {{{Beiträge des ComeNet Chemie zur digitalen Transformation des Chemieunterrichts}}}, year = {{2026}}, } @article{60993, abstract = {{

We determine the distribution of discriminants of wildly ramified elementary-abelian extensions of local and global function fields in characteristic p p . For local and rational function fields, we also give precise formulae for the number of elementary-abelian extensions with a fixed discriminant divisor, which describe a local-global principle.

}}, author = {{Potthast, Nicolas}}, issn = {{1088-6850}}, journal = {{Transactions of the American Mathematical Society}}, number = {{1}}, pages = {{289 -- 340}}, publisher = {{American Mathematical Society (AMS)}}, title = {{{On the asymptotics of elementary-abelian extensions of local and global function fields}}}, doi = {{10.1090/tran/9509}}, volume = {{379}}, year = {{2026}}, } @article{63099, abstract = {{Spray-induced gene silencing (SIGS) employing double-stranded RNA (dsRNA) offers a promising, species-specific approach for protecting crops from insect pests such as the cabbage stem flea beetle (Psylliodes chrysocephala). However, the environmental instability of dsRNA presents a major limitation to its field application. In this study, we evaluate two distinct dsRNA formulation strategies for improved stability and delivery: a bottom-up approach using chitosan-based interpolyelectrolyte complexes (IPEC) and a top-down approach employing functionalized mesoporous silica carriers (SBA-15). Both systems were comprehensively characterized in terms of size, surface potential, porosity, and release behavior. The results revealed that IPECs exhibited release kinetics that were approximately one order of magnitude faster than those of SBA-15 across all tested conditions. The two formulations significantly improved dsRNA stability against UV and heat exposure compared to free dsRNA. In feeding assays with P. chrysocephala, both carriers achieved comparable gene silencing efficacy, though dsRNA@IPEC induced more immediate effects, while dsRNA@SBA-15 displayed delayed but ultimately stronger reduction in consumed leaf area, consistent with its slower release kinetics. We demonstrate that despite structural and mechanistic differences, both delivery platforms effectively stabilized and delivered dsRNA, and offered distinct advantages depending on application needs. This work highlights how formulation strategies are key to successful SIGS and supports the development of robust, field-adaptable formulation technologies for sustainable pest management.}}, author = {{Moorlach, Benjamin W. and Epkenhans, Robert and Ju, Di and Ravidas, Banuja and Weinberger, Christian and Tiemann, Michael and Buente, Judith and Gaerner, Maik and Wortmann, Martin and Scholten, Stefan and Rostas, Michael and Keil, Waldemar and Patel, Anant V.}}, issn = {{0141-8130}}, journal = {{International Journal of Biological Macromolecules}}, publisher = {{Elsevier BV}}, title = {{{DsRNA-based carriers with pH-tuneable release kinetics for effective control of Psylliodes chrysocephala}}}, doi = {{10.1016/j.ijbiomac.2025.149697}}, volume = {{338}}, year = {{2026}}, } @inbook{46202, author = {{Ficara, Elena}}, booktitle = {{Reviving Hegel's Dialectics}}, editor = {{Maraguat, Edgar and Aragüés, Rafael}}, publisher = {{Routledge}}, title = {{{Dialectics Between Logic and Politics}}}, year = {{2026}}, } @inbook{63191, author = {{Kottmann, Brigitte}}, booktitle = {{"Sharing is Caring" - Perspektiven und Praktiken einer diskriminierungs- und machtkritischen Kunstpädagogik.}}, editor = {{Winkler, Antje and Brenne, Andreas}}, isbn = {{978-3-8376-6025-8}}, pages = {{115--128}}, publisher = {{transcript}}, title = {{{Die Feststellung von sonderpädagogischem Förderbedarf. Schulische Strukturen, Kulturen und Praktiken in der Herstellung von Differenz und Ungleichheit.}}}, doi = {{10.14361/9783839400609}}, year = {{2026}}, } @article{63391, abstract = {{This study addresses the challenge of insufficient weld penetration in the outer thin low-carbon steel during resistance spot welding of three-layer dissimilar stack-ups containing advanced high-strength steels. To overcome thermal imbalance constraints, an innovative strategy leveraging plastic shell containment is proposed to elevate the expulsion-free heat input threshold. By applying a combined preheating and ramping current profile, a coordinated “shell-first, nugget-second” sequence is achieved. This mechanism creates a solid-state barrier prior to rapid fusion, effectively preventing expulsion. Experimental results demonstrate that while the reference constant-current schedule fails to maintain a process window under a 2 mm initial gap (IG) disturbance, the proposed strategy significantly enhances process stability. It increases the maximum expulsion-free heat input by 24 % (to 6338 J) under normal conditions and by 77 % (to 6482 J) under the IG condition. Crucially, the increased heat input drives nugget growth across all interfaces, achieving a penetration depth of 0.38 mm (48 % penetration ratio) in the low-carbon steel sheet under the gap condition. These findings validate the strategy’s effectiveness in ensuring weld quality and robustness, which is further confirmed by its transferability to a lowerresistivity DX54D cover sheet.}}, author = {{Yang, Keke and Männer, Leonhard and Wang, Zhuoqun and Olfert, Viktoria and Böhm, Yannic and Hein, David and Meschut, Gerson}}, issn = {{1526-6125}}, journal = {{Journal of Manufacturing Processes}}, number = {{Special issue entitled: ‘Trends on spot joining’ published in Journal of Manufacturing Processes.}}, pages = {{984--1000}}, publisher = {{Elsevier BV}}, title = {{{Process window expansion with transferable applicability in three-layer dissimilar steel resistance spot welding via expulsion prevention}}}, doi = {{10.1016/j.jmapro.2025.12.036}}, volume = {{157}}, year = {{2026}}, } @article{63401, author = {{Thommes, Kirsten and Mehic, Miro}}, issn = {{0965-8564}}, journal = {{Transportation Research Part A: Policy and Practice}}, publisher = {{Elsevier BV}}, title = {{{The persistence of default effects: Evidence from CO2 offsetting in cargo transportation}}}, doi = {{10.1016/j.tra.2025.104838}}, volume = {{204}}, year = {{2026}}, } @article{63418, abstract = {{Manufacturing tolerances have a measurable influence on the structural integrity of self-piercing riveted (SPR) joints in automotive applications, yet their quantitative impact on load-bearing behavior remains insufficiently resolved. This study establishes a validated hierarchical methodology to predict tolerance-dependent failure behavior of SPR joints, progressing from coupon to sub-component scale through an integrated experimental–numerical approach. Five critical manufacturing tolerances, including rivet length (±0.5 mm), rivet head position (±0.3 mm), orthogonality deviation (2.8° and 5°), lateral offset (up to 1.2 mm), and flange overlap reduction (up to 7.5 mm), were investigated. Steel–steel joints exhibited a higher sensitivity to tolerances by a factor of 2–3 compared to steel–aluminum joints. A unified effective rivet length concept was developed to consolidate the geometric effects of all tolerances into a single physically meaningful parameter, enabling load-bearing capacity prediction with R2 > 0.95 across all evaluated loading directions. The sub-component validation employing T-joint specimens indicates a 2–3 fold amplification of tolerance effects at critical structural regions, providing experimental evidence for the hierarchical scaling principle. The methodology was implemented in a tolerance-dependent CONSTRAINED_SPR3 formulation, providing >99 % computational efficiency improvement while maintaining a deviation in maximum force prediction within ±7 %. This framework enables the physically consistent representation of manufacturing variation within large-scale simulations and establishes a transferable basis for tolerance-resilient virtual vehicle development.}}, author = {{Olfert, Viktoria and Yang, Keke and Rochel, Philip and Bähr, Philipp and Hein, David and Sommer, Silke and Meschut, Gerson}}, issn = {{1526-6125}}, journal = {{Journal of Manufacturing Processes}}, number = {{Special issue entitled: ‘Trends on spot joining’ published in Journal of Manufacturing Processes.}}, pages = {{1250--1273}}, publisher = {{Elsevier BV}}, title = {{{Predictive modeling of tolerance-dependent failure behavior of self-pierce riveted joints: From coupon-level tests to sub-component validation}}}, doi = {{10.1016/j.jmapro.2025.12.058}}, volume = {{157}}, year = {{2026}}, } @article{63435, author = {{Claes, Leander and Winkler, Michael}}, issn = {{1468-1218}}, journal = {{Nonlinear Analysis: Real World Applications}}, pages = {{104580}}, publisher = {{Elsevier BV}}, title = {{{Describing smooth small-data solutions to a quasilinear hyperbolic-parabolic system by W 1,P energy analysis}}}, doi = {{10.1016/j.nonrwa.2025.104580}}, volume = {{91}}, year = {{2026}}, }