@inbook{63696, abstract = {{Das Kapitel beleuchtet, wie digitale Medien von Jugendlichen genutzt werden und wie diese Nutzung die Entwicklung von Jugendlichen beeinflusst, indem Einblicke in Nutzungsmuster, Chancen und Risiken digitaler Medien sowie in den Stand digitaler Kompetenzen gegeben werden. Zwei zentrale Sozialisationsinstanzen (Familie und Peers) werden genauer beleuchtet. Ziel ist es, pädagogische und gesellschaftliche Strategien zur Förderung digitaler Mündigkeit aufzuzeigen.}}, author = {{Kurock, Ricarda and Jungkeim, Lisa and Kuhn, Nicole}}, booktitle = {{Handbuch Entwicklungs- und Erziehungspsychologie}}, editor = {{Kracke, Bärbel and Noack, Peter }}, keywords = {{Mediennutzung, Soziale Medien, Digitale Kompetenzen, Peers, Familie}}, publisher = {{Springer}}, title = {{{Umgang mit digitalen Medien im Jugendalter}}}, year = {{2026}}, } @inproceedings{57866, abstract = {{The theory of Total Function NP (TFNP) and its subclasses says that, even if one is promised an efficiently verifiable proof exists for a problem, finding this proof can be intractable. Despite the success of the theory at showing intractability of problems such as computing Brouwer fixed points and Nash equilibria, subclasses of TFNP remain arguably few and far between. In this work, we define two new subclasses of TFNP borne of the study of complex polynomial systems: Multi-homogeneous Systems (MHS) and Sparse Fundamental Theorem of Algebra (SFTA). The first of these is based on B\'ezout's theorem from algebraic geometry, marking the first TFNP subclass based on an algebraic geometric principle. At the heart of our study is the computational problem known as Quantum SAT (QSAT) with a System of Distinct Representatives (SDR), first studied by [Laumann, L\"auchli, Moessner, Scardicchio, and Sondhi 2010]. Among other results, we show that QSAT with SDR is MHS-complete, thus giving not only the first link between quantum complexity theory and TFNP, but also the first TFNP problem whose classical variant (SAT with SDR) is easy but whose quantum variant is hard. We also show how to embed the roots of a sparse, high-degree, univariate polynomial into QSAT with SDR, obtaining that SFTA is contained in a zero-error version of MHS. We conjecture this construction also works in the low-error setting, which would imply SFTA is contained in MHS.}}, author = {{Aldi, Marco and Gharibian, Sevag and Rudolph, Dorian}}, booktitle = {{17th Innovations in Theoretical Computer Science Conference (ITCS 2026)}}, pages = {{7:1--7:24}}, title = {{{An unholy trinity: TFNP, polynomial systems, and the quantum satisfiability problem}}}, volume = {{362}}, year = {{2026}}, } @article{63720, abstract = {{The aging behavior of closed-cell polyurethane (PUR) foam, a material widely used in household refrigeration, is studied by examining the variation of cell gas composition and thermal conductivity over time. Aging is primarily driven by gas permeation, wherein the initially present cell gases carbon dioxide and cyclopentane are progressively replaced by nitrogen and oxygen from the ambient, resulting in an increased thermal conductivity and reduced insulation performance. The cell gas composition is measured over 1400 days employing gas chromatography, and the thermal conductivity of the foam is measured over 190 days. Morphological foam characteristics, such as average cell diameter, are determined via scanning electron microscopy and barrier measurements are performed to estimate the effective diffusion coefficient of oxygen. To simulate the aging process, one-dimensional and three-dimensional models are developed for both diffusive mass transfer as well as heat transfer. The present model for the thermal conductivity explicitly accounts for condensation effects, i.e. partial condensation of cyclopentane and carbon dioxide occurring at around 12°C, which significantly influences the insulation behavior of the foam. Sensitivity analyses indicate that an initial cell gas pressure of approximately 0.7 bar yields results that closely coincide with the experimental measurements, where the three-dimensional model demonstrates better accuracy. These measurements and simulations provide valuable insights for evaluating and predicting the long-term degradation of the insulation performance of PUR foams.}}, author = {{Schumacher, Daniel and Guevara-Carrion, Gabriela and Kasper, Tina and Paul, Andreas and Elsner, Andreas and Peters, Bettina and Wollny, Wenke and Bluemel, Marcus and Hoelscher, Heike and Brzoska-Steinhaus, Nicola and Heil, Klaus and Schleelein, Lukas and Becker, Wolfgang and Gries, Ulrich and Vrabec, Jadran}}, issn = {{1359-4311}}, journal = {{Applied Thermal Engineering}}, keywords = {{Polyurethane, Foam, Gas permeation, Diffusion models, Thermal conductivity, Condensation, Gas chromatography, Scanning electron microscopy}}, publisher = {{Elsevier BV}}, title = {{{Aging of polyurethane foam: Experimental analysis and modeling of cell gas composition and thermal conductivity}}}, doi = {{10.1016/j.applthermaleng.2026.129850}}, volume = {{289}}, year = {{2026}}, } @inbook{60931, author = {{Flath, Beate}}, booktitle = {{Clubsterben: Sozioökonomischer Wandel und urbane Musikkulturen}}, editor = {{Fischer, Michael and Rommelspacher, Lorenz and Lücke, Martin }}, location = {{Albert-Ludwigs-Universität Freiburg}}, title = {{{Nachhaltiges Clubsterben? Überlegungen zu Kommodifizierung und Nachhaltigkeit im Kontext des Clubsterbens in Deutschland (im Erscheinen)}}}, year = {{2026}}, } @article{60537, author = {{Flath, Beate}}, journal = {{~Vibes - The IASPM D-A-CH Series}}, location = {{Zürich }}, title = {{{Livemusikkulturen, Virtualitäten und Metamorphosen: Perspektiven auf das kulturökonomische Konzept der Baumol’schen Kostenkrankheit}}}, volume = {{4}}, year = {{2026}}, } @book{63722, abstract = {{This volume presents insights from the 2025 ITS-Colloquium on Comparative Theology and So-cial Work, exploring how theological concepts and interreligious dialogue inform and critically engage social practice. Drawing on insights from education, psychosocial support, military chaplaincy, and community-building, it reveals the transformative potential of comparative theology in addressing migration, marginalization, and social fragmentation. The contributions critically examine the ethical depth and practical challenges of integrating religious perspectives into social work, offering valuable insights for theory and praxis in pluralistic societies, while also showing the limits and challenges of theoretical models. Overall, when critically and contextually applied, impulses from comparative theology offer both conceptual depth and practical tools for ethical, inclusive, and transformative social engagement. }}, editor = {{Erdem, Gülbahar and Eroglu, Tarik and Lebock, Sarah}}, location = {{Paderborn}}, publisher = {{DeGruyter}}, title = {{{Comparative Theology and Social Work: Exploring Theory and Praxis in Pluralistic Societies}}}, volume = {{6}}, year = {{2026}}, } @inbook{63211, author = {{Dockter, Cornelia and Lebock, Sarah and Wiesenhütter, Lukas }}, booktitle = {{Religion and Health - Comparative-theological Approaches}}, editor = {{Dockter, Cornelia and Lebock, Sarah and Wiesenhütter, Lukas}}, issn = {{2629-8848}}, pages = {{VII--XV}}, publisher = {{Brill - Schöningh}}, title = {{{Introduction}}}, volume = {{44}}, year = {{2026}}, } @book{63210, editor = {{Dockter, Cornelia and Lebock, Sarah and Wiesenhütter, Lukas}}, issn = {{2629-8848}}, location = {{Paderborn}}, publisher = {{Brill - Schöningh}}, title = {{{Religion and Health - Comparative-Theological Approaches}}}, volume = {{44}}, year = {{2026}}, } @inproceedings{61492, abstract = {{This paper deals with the development and results of a prediction framework for traffic light control systems as well as the usage and benefits of such predictions in green light optimal speed advisory (GLOSA) scenarios. Various machine learning methods like support vector machines, neural networks or reinforcement learning were evaluated for their applicability in the prediction context and compared based on their efficiency and most importantly accuracy. The resulting prediction framework uses decision tree ensemble models combined with certain model knowledge to forecast different control strategies. This method was chosen due to its best performance in various test scenarios. Very high accuracy and fidelity were achieved for standard control methods like fixed-time, time-of-day-based and 'ordinary' traffic-based programs. Only for the more sophisticated model predictive control which was tested lower accuracies were achieved. For the upcoming GLOSA application the penetration of equipped vehicles was varied for different traffic scenarios and control strategies. Results showcase high potentials for enhancing urban mobility and reducing environmental impact by lower emissions and waiting times. However, it is also clear from the studies presented in this contribution that the coordination of the control strategy with the GLOSA vehicles is of enormous importance.}}, author = {{Malena, Kevin and Link, Christopher and Gausemeier, Sandra and Trächtler, Ansgar}}, booktitle = {{2025 IEEE 28th International Conference on Intelligent Transportation Systems (ITSC)}}, keywords = {{ML, Prediction, Tree Ensembles, GLOSA}}, location = {{Gold Coast (Australia)}}, publisher = {{IEEE}}, title = {{{ML-based Prediction Framework for varying Traffic Signal Control Strategies and its GLOSA-application}}}, volume = {{28}}, year = {{2026}}, } @article{63731, abstract = {{The Banzhaf power index can be used to quantify the explanatory power of single conditions in a configurational analysis that aims at identifying whether combinations of conditions are sufficient for an outcome. The latter method is an integral part of the Qualitative Comparative Analysis (QCA) approach. It is widely used in the literature, e.g., in the field of International Management. Haake and Schneider (2023) give a rigorous description of the connection between the empirical and game theoretic modeling. To justify that the Banzhaf index is an appropriate tool to measure the influence of a condition, this paper discusses a novel axiomatization of the Banzhaf index that uses axioms that are directly linked to the QCA methodology. As a side result, we demonstrate that in our model the Banzhaf index can be reinterpreted as an average of Shapley-Shubik indices.}}, author = {{Haake, Claus-Jochen and Schneider, Martin}}, journal = {{International Journal of Game Theory}}, keywords = {{Banzhaf index, axiomatization, QCA, explanatory power}}, publisher = {{Springer}}, title = {{{An Axiomatization of the Banzhaf Index to Measure Influence in Qualitative Comparative Analysis}}}, doi = {{10.1007/s00182-026-00978-2}}, volume = {{55}}, year = {{2026}}, } @inbook{63752, author = {{Steinhausen, Julia}}, booktitle = {{Praxishandbuch Mentoring in der Wissenschaft}}, editor = {{Petersen, Renate and Budde, Mechthild and Brocke, Pia and Doebert, Gitta and Rudack, Helga}}, isbn = {{9783658478391}}, keywords = {{Mentoring, Frauen, Wissenschaft}}, publisher = {{Springer Fachmedien Wiesbaden}}, title = {{{„Mind the gap“: Mentoring für Frauen in der Statuspassage Studium – Promotion}}}, doi = {{10.1007/978-3-658-47840-7_22}}, year = {{2026}}, } @article{63784, author = {{Trienens, Dorte and Brüning, Florian and Schöppner, Volker}}, journal = {{kunststoffland NRW report}}, title = {{{Wo Forschung, KI und Praxis aufeinandertreffen}}}, volume = {{03-2025}}, year = {{2026}}, } @inbook{63791, author = {{Schlesier, Juliane and Rank, Astrid and Then, Daniel and Pohlmann-Rother, Sanna and Herding, Jana and Büker, Petra and Carle, Ursula}}, booktitle = {{Bezugsnotwendigkeiten in der Grundschule. Pädagogik und Fachdidaktik in der Grundschulbildung}}, editor = {{Peschel, Markus and Kihm, Pascal and Platz, Melanie and Gebauer, Lea Marie}}, isbn = {{978-3-7815-2751-5}}, pages = {{143--154}}, publisher = {{Julius Klinkhardt}}, title = {{{Transitionen von Kindern mit erschwerten Lern- und Teilhabevoraussetzungen begleiten}}}, year = {{2026}}, } @article{63798, author = {{Vernholz, Mats and Temmen, Katrin}}, issn = {{2199-8825}}, journal = {{die hochschullehre}}, number = {{8}}, pages = {{97--111}}, publisher = {{wbv Publikation}}, title = {{{Motive Ingenieurstudierender für den Besuch (fach-)didaktischer Lehrveranstaltungen im Projekt EduTech Net OWL}}}, doi = {{10.3278/HSL2608W}}, volume = {{12}}, year = {{2026}}, } @inproceedings{61528, author = {{Hassan, Nik and Marrone, Mauricio and Schryen, Guido and Yang, Jack}}, booktitle = {{Proceedings of the 59th Hawaii International Conference on System Sciences}}, title = {{{Using Google’s Natural Language Model to Measure Growth of Knowledge in Information Systems Research}}}, year = {{2026}}, } @article{63800, abstract = {{In this contribution, we address the estimation of the frequency-dependent elastic parameters of polymers in the ultrasound range, which is formulated as an inverse problem. This inverse problem is implemented as a nonlinear regression-type optimization problem, in which the simulation signals are fitted to the measurement signals. These signals consist of displacement responses in waveguides, focusing on hollow cylindrical geometries to enhance the simulation efficiency. To accelerate the optimization and reduce the number of model evaluations and wait times, we propose two novel methods. First, we introduce an adaptation of the Levenberg–Marquardt method derived from a geometrical interpretation of the least-squares optimization problem. Second, we introduce an improved objective function based on the autocorrelated envelopes of the measurement and simulation signals. Given that this study primarily relies on simulation data to quantify optimization convergence, we aggregate the expected ranges of realistic material parameters and derive their distributions to ensure the reproducibility of optimizations with proper measurements. We demonstrate the effectiveness of our objective function modification and step adaptation for various materials with isotropic material symmetry by comparing them with the Broyden–Fletcher–Goldfarb–Shanno method. In all cases, our method reduces the total number of model evaluations, thereby shortening the time to identify the material parameters.}}, author = {{Itner, Dominik and Dreiling, Dmitrij and Gravenkamp, Hauke and Henning, Bernd and Birk, Carolin}}, issn = {{0888-3270}}, journal = {{Mechanical Systems and Signal Processing}}, keywords = {{Material parameter estimation, Waveguide, Nonlinear optimization, Inverse problem, Least squares}}, pages = {{113904}}, title = {{{A modified Levenberg–Marquardt method for estimating the elastic material parameters of polymer waveguides using residuals between autocorrelated frequency responses}}}, doi = {{https://doi.org/10.1016/j.ymssp.2026.113904}}, volume = {{247}}, year = {{2026}}, } @article{63827, abstract = {{Light-emitting diodes (LEDs) are becoming increasingly important across various sectors of the lighting industry and are being used more frequently. In the field of symbolic projection, research is increasingly focusing on implementing light modulation using energy-efficient, incoherent LEDs rather than lasers. Since light modulation in micro- and nano-optics is typically achieved through phase modulation, Finite-Difference Time-Domain (FDTD) simulations are employed for analysis. The objective of this article is to investigate different approaches for approximating incoherent monochromatic light sources within FDTD simulations. To this end, two approaches based on dipole sources are considered, as well as a method involving plane waves with modulated wavefronts based on Cosine–Fourier functions and a method based on the superposition of Gaussian beams. These methods are evaluated in terms of their accuracy using a two-dimensional double-slit configuration and are compared against a fully incoherent analytical reference.}}, author = {{Metzner, Dominik and Potthoff, Jens and Zentgraf, Thomas and Förstner, Jens}}, issn = {{2304-6732}}, journal = {{Photonics}}, keywords = {{tet_topic_opticalantenna, tet_topic_numerics, tet_topic_meta}}, number = {{2}}, publisher = {{MDPI AG}}, title = {{{Approximating Incoherent Monochromatic Light Sources in FDTD Simulations}}}, doi = {{10.3390/photonics13020128}}, volume = {{13}}, year = {{2026}}, } @article{61463, abstract = {{Vernetztes Wissen ist ein zentrales Lernziel des Hochschulstudiums, insbesondere im interdisziplinär angelegten Studienfach Komparatistik. Um den Aufbau vernetzten Wissens bei Bachelorstudierenden der Komparatistik zu unterstützen, ist in diesem Projekt Portfolioarbeit eingesetzt worden, die als Methode selbsttätigen und selbstreflexiven Lernens geeignet erscheint, zur Auseinandersetzung mit Lerninhalten zu motivieren und zur Kompetenzentwicklung der Studierenden beizutragen. Mittels unstrukturierter Beobachtungen der Portfolioarbeit im Seminar sind inhaltliche Effekte und methodische Entwicklungen erfasst worden. Anhand anteilig quantitativer, überwiegend qualitativer Inhaltsanalysen der Portfolios sind konkrete Vernetzungen zwischen Lerninhalten ermittelt worden. Die Explorationsstudie zeigt veränderte Perspektiven und geweckte Interessen bei den Studierenden durch die Portfolioarbeit sowie vielfältige Kontextualisierungen, Vergleiche und Verknüpfungen in den Portfolios auf und bietet hierdurch einen möglichen Ansatzpunkt für strukturelle Empfehlungen für das Studienfach Komparatistik.}}, author = {{Hannebohm, Ronja}}, issn = {{2199–8825}}, journal = {{die hochschullehre: Interdisziplinäre Zeitschrift für Studium und Lehre}}, keywords = {{Portfolioarbeit, portfolio work, vernetztes Wissen, knowledge networks, Beobachtung, naturalistic observation, Inhaltsanalyse, content analysis}}, pages = {{65--80}}, publisher = {{wbv}}, title = {{{Potenziale der Portfolioarbeit für den Aufbau vernetzten Wissens im Bachelorstudium: Eine Explorationsstudie im Studienfach Komparatistik/Vergleichende Literatur- und Kulturwissenschaft}}}, doi = {{10.3278/HSL2606W}}, volume = {{12}}, year = {{2026}}, } @article{63838, abstract = {{Industrial electrification is increasing to reduce fossil fuel dependence, alongside a growing share of volatile renewables. A secure and reliable energy supply is crucial for industry, leading to a shift from centralised to decentralised grid structures. DC microgrids becoming increasingly popular in industry, since they enable energy recuperation from braking, reduce components and cables, and integrate storage and local generation to manage supply interruptions or peak loads. EVs add further synergies by serving as mobile storage units, helping to store and redistribute locally generated renewable energy. This paper analyses how EV integration in droop-controlled DC grids can contribute to a more stable, low-emission and peak-reduced load profile to the supply grid through load shifting and bridge interruptions. A droop-controlled DC grid model has been developed, incorporating an EV charging park based on probability functions. Scalable scenarios allow for diverse condition analysis using an energy management system that utilises fuzzy logic and sequential MILP optimisation. It has been shown that a 7% improvement of coefficient represented grid-serving behaviour is possible by load shifting. It has also been demonstrated that an optimised EMS can reduce the demand-based CO2 emissions by 41kg for a representative day compared to a fuzzy logic EMS. At the same time peak load is decreased yielding a more constant residual load. These results highlight the potential of a controlled bidirectional charging infrastructure in DC grids and underscore the need to explicitly consider charging processes to ensure a residual load as constant as possible.}}, author = {{Rahlf, Henning Christoph and Knorr, Lukas and Althoff, Simon and Meschede, Henning}}, issn = {{2666-9552}}, journal = {{Smart Energy}}, keywords = {{DC-grid, Droop control, Grid-serving behaviour, Grid stability, Bidirectional charging, Sequential decision, MILP optimisation}}, publisher = {{Elsevier BV}}, title = {{{Analysis of bidirectional EV charging infrastructures within industrial DC grids}}}, doi = {{10.1016/j.segy.2026.100227}}, year = {{2026}}, } @proceedings{63860, editor = {{Hogan, Aidan and Satoh, Ken and Dag, Hasan and Turhan, Anni-Yasmin and Roman, Dumitru and Soylu, Ahmet}}, isbn = {{978-3-032-08886-4}}, publisher = {{Springer}}, title = {{{Rules and Reasoning - 9th International Joint Conference, RuleML+RR 2025, Istanbul, Turkey, September 22-24, 2025, Proceedings}}}, doi = {{10.1007/978-3-032-08887-1}}, volume = {{16144}}, year = {{2026}}, }