@book{65868, author = {{Herold-Blasius, Raja and Kleinschmidt, Vera}}, publisher = {{TU Dortmund}}, title = {{{Digitale Escape Games in der Hochschullehre – Seminarkonzept}}}, doi = {{http://dx.doi.org/10.17877/DE290R-26557}}, year = {{2026}}, } @article{65810, author = {{Zapata Gonzalez, David Ricardo and Meyer, Marcel and Zalipski, Kevin and Müller, Oliver}}, issn = {{0306-2619}}, journal = {{Applied Energy}}, publisher = {{Elsevier BV}}, title = {{{Temporal causal feature selection for robust machine learning modelling of data center operations}}}, doi = {{10.1016/j.apenergy.2026.127984}}, volume = {{417}}, year = {{2026}}, } @book{66045, abstract = {{ Over the last decades, Comparative Theology has established itself in varying methodological ways while considering the reality and plurality of religions. Although Comparative Theology can be a confessional or a non-confessional endeavor, most protagonists and theorists have been Western Christians. This could lead to the conclusion that Comparative Theology is in fact a Christian undertaking and implicitly or explicitly bound to conceptions like Christology. Furthermore, it could be argued that there is a certain asymmetry of power in the discourse between religions when the parameters of Comparative Theology are defined mainly by Christian theologians. This volume aims to be the first step to programmatically and conceptionally explore the possibility of a genuinely Islamic Comparative Theology in a constructive endeavor. This endeavor should neither be misunderstood as an apologetic questioning of the status quo in Comparative Theology nor as a project that deconstructs Comparative Theology. Rather, by searching for new approaches from the Islamic traditions it opens up ways and forms of learning, hermeneutically complementary with prominent attitudes, methods in Comparative Theology. }}, editor = {{Nassery, Idris and Ghaffar, Zishan}}, isbn = {{978-3-11-143539-8}}, issn = {{2942-7975}}, keywords = {{Comparative Theology, Islamic Theology, Islamic Comparative Theology}}, publisher = {{De Gruyter}}, title = {{{Defining Islamic Comparative Theology}}}, doi = {{https://doi.org/10.1515/9783111435695}}, volume = {{Volume 1}}, year = {{2026}}, } @inbook{66048, author = {{Ghaffar, Zishan}}, booktitle = {{Defining Islamic Comparative Theology}}, editor = {{Nassery, Idris and Ghaffar, Zishan}}, keywords = {{Covenant Theology, Qur'an, Comparative Theology, Islamic Comparative Theology}}, publisher = {{De Gruyter}}, title = {{{Chapter 5 Covenant Theology in the Qur’an—Challenges and Insights for Comparative Theology from a Muslim Perspective}}}, doi = {{https://doi.org/10.1515/9783111435695-006}}, volume = {{Volume 1}}, year = {{2026}}, } @article{66052, abstract = {{This article examines the use of the Arabic term khalīfah in the Qur’an through the lens of its implicit historical-political theology. To achieve this, the study employs a comparative analysis of the concept of vicarious kingship within the Syriac tradition. The findings suggest that the Qur’an rejects the notion of a historical replacement or substitution of believing individuals or groups with new ones. Furthermore, it challenges the framework of a political theology that envisions the typological and eschatological fulfillment of messianic rulership. Instead, the term khalīfah primarily emphasizes the inherently political nature of humanity, in which each individual is continuously accountable to their Creator.}}, author = {{Ghaffar, Zishan}}, journal = {{Journal of the International Qur’anic Studies Association}}, pages = {{1--27}}, publisher = {{De Gruyter Brill}}, title = {{{History and political Theology: The term khalīfah in the Qur’an}}}, doi = {{https://doi.org/10.1515/jiqsa-2024-0016}}, volume = {{11}}, year = {{2026}}, } @phdthesis{66043, author = {{Wehde, Janis}}, title = {{{Empirische Studien zur Demokratiebildung im Lehramtsstudium in Nordrhein-Westfalen}}}, doi = {{10.17619/UNIPB/1-2629}}, year = {{2026}}, } @article{66060, author = {{Claes, Leander and Winkler, Michael}}, issn = {{1420-9004}}, journal = {{Nonlinear Differential Equations and Applications NoDEA}}, number = {{4}}, publisher = {{Springer Science and Business Media LLC}}, title = {{{Local strong solutions in a quasilinear Moore-Gibson-Thompson type model for thermoviscoelastic evolution in a standard linear solid}}}, doi = {{10.1007/s00030-026-01239-7}}, volume = {{33}}, year = {{2026}}, } @article{66059, author = {{Kapustenko, Petro and Tovazhnyanskyy, Leonid and Arsenyeva, Olga and Riese, Julia and Varbanov, Petar Sabev}}, issn = {{1290-0729}}, journal = {{International Journal of Thermal Sciences}}, publisher = {{Elsevier BV}}, title = {{{Selection of the mini- and micro-channels geometry for improved heat recuperation in specific industrial conditions}}}, doi = {{10.1016/j.ijthermalsci.2026.111129}}, volume = {{229}}, year = {{2026}}, } @inproceedings{66058, author = {{Breuing, Friederike}}, location = {{Paderborn}}, title = {{{Building Bridges – Partizipation und Reflexion mit der LEGO® SERIOUS PLAY®-Methode fördern}}}, year = {{2026}}, } @article{66057, author = {{Bullerjahn, Nils and Kovács, Balázs}}, journal = {{ArXiv}}, title = {{{Error estimates for $A$-stable backward difference full discretizations of Willmore flow of closed surfaces}}}, doi = {{10.48550/arXiv.2606.25934}}, year = {{2026}}, } @inbook{66061, author = {{Breckner, Anne}}, booktitle = {{Religious Diversity and Global Concerns}}, editor = {{Bergmann , Claudia }}, pages = {{223--246}}, publisher = {{Aschendorff}}, title = {{{The Lord’s Prayer and its place in the London Underground. Reflections on religious diversity and a parody based on a central sacred text}}}, doi = {{10.17438/25179}}, year = {{2026}}, } @article{66030, abstract = {{Die Frage, ob bei einer Verbraucherbürgschaft, die in einer Außergeschäftsraumsituation abgegeben worden ist, ein Wider-rufsrecht besteht, ist seit nunmehr 30 Jahren umstritten. Der BGH hatte im Jahr 2020 in einem Grundsatzurteil das Widerrufsrecht abgelehnt - nur neun Monate vor der erneuten Ände-rung des für diese Frage entscheidenden § 312 BGB. Der Beitrag zeigt, dass die Abgabe einer Bürgschaftserklärung notwendigerweise mit der Bereitstellung personenbezogener Daten verbunden ist. Dies eröffnet aufgrund des überobligatorisch weit gefassten Tatbestands des neuen § 312 Abs. 1a BGB den Anwendungsbereich des Verbrauchervertragsrechts und begründet damit das Widerrufsrecht nach § 312g BGB.}}, author = {{Bartlitz, David}}, issn = {{0022-6882}}, journal = {{JuristenZeitung}}, number = {{12}}, pages = {{537--545}}, publisher = {{Mohr Siebeck}}, title = {{{Die Widerruflichkeit der Verbraucherbürgschaft – a never ending story}}}, doi = {{10.1628/jz-2026-0161}}, volume = {{81}}, year = {{2026}}, } @article{66036, abstract = {{Light-assisted metal oxide-based chemiresistive gas sensors are widely explored for operation at relatively low temperatures, yet the investigation of the role of irradiance, as opposed to wavelength, remains underrepresented. Here, we systematically quantify the irradiance-dependent behavior of ordered mesoporous In2O3 under visible light illumination. Photoconductivity measurements reveal two distinct irradiance regimes consistent with trap-limited transport at low power and recombination- or saturation-limited transport at high power. Gas sensing experiments towards CO and H2 show a pronounced non-monotonic response, reaching maximum responses of 0.74 for 135 ppm CO at 67 mW cm−2 and 0.64 for 90 ppm H2 at 11 mW cm−2, followed by strong suppression at higher irradiance. Illumination also accelerated the response kinetics. At 60 ppm, t90 decreases from 96 to 12 s for CO and 141 to 27 s for H2, corresponding to an 8- and 5-fold faster response time, respectively. Near-ambient pressure-XPS under controlled atmosphere and density functional theory calculations indicate defect-mediated excitation. Oxygen vacancy states and illumination-induced modification of surface oxygen species govern this behavior. The results establish irradiance as a critical mechanistic parameter that determines whether In2O3 operates in a surface-controlled or bulk photoconductive regime. These findings highlight the need to explicitly optimize and report irradiance in illuminated gas sensor studies, and not only the power consumption of the light source.}}, author = {{Voth, Sven and Zhao, Zhenyu and Baier, Dominik and Glass, Alexandra and Elgabarty, Hossam and Sandberg, Oskar J. and Grundmeier, Guido and Tiemann, Michael and Smått, Jan-Henrik and Anttu, Nicklas and de los Arcos, Teresa and Weinberger, Christian}}, issn = {{2379-3694}}, journal = {{ACS Sensors}}, keywords = {{resistive gas sensing, indium oxide, photoactivation, irradiance, photoconductivity, charge carrier dynamics, oxygen vacancies}}, publisher = {{American Chemical Society (ACS)}}, title = {{{Role of Irradiance in Light-Activated In2O3Gas Sensors: Why More Light Is Not Always Better}}}, doi = {{10.1021/acssensors.6c01100}}, year = {{2026}}, } @article{66040, abstract = {{Magnetron-sputtered CNx thin films are primarily employed as hard, low-friction protective and tribological coatings, as solar cells, and for catalytic applications. Lower growth rates and a reduced N content, favoring graphitic sp2 structures, hinder industrial scalability due to prolonged deposition times and produce softer, less dense films with inferior hardness, elasticity, and wear resistance. Carbon nitride films deposited by magnetron sputtering exhibit growth behavior strongly influenced by plasma–surface interactions. However, nitrogen resputtering and reduced film growth rates are commonly attributed to chemical etching by positive ions. We propose an additional, unreported power-dependent mechanism involving negative ions formed at the carbon target. These ions are accelerated through the plasma sheath, reaching the substrate with high kinetic energy and inducing both chemical and physical resputtering. This effect is localized to the geometrical projection of the target, as shown by spatially resolved analysis: ellipsometry reveals thickness reduction, and x-ray photoelectron spectroscopy and Raman spectroscopy indicate nitrogen depletion within this region. Correlation between stoichiometry and structural signatures confirms the decisive role of negative ions in modifying the film composition and microstructure. At the same time, the composition of the gas mixture exerts only a minor effect.}}, author = {{Wieschhoff, Christian and Theile-Rasche, Chantal and Wang, Fuzeng and Prib, Michael and Moldt, Viktoria Daniela Dorothea and Grundmeier, Guido and Salas, Nieves López and de los Arcos de Pedro, Maria Teresa}}, issn = {{0021-8979}}, journal = {{Journal of Applied Physics}}, number = {{24}}, publisher = {{AIP Publishing}}, title = {{{Influence of negative ions on the stoichiometry and structure of carbon nitride films deposited by reactive magnetron sputtering}}}, doi = {{10.1063/5.0335780}}, volume = {{139}}, year = {{2026}}, } @article{66041, author = {{Voth, Sven and Zhao, Zhenyu and Baier, Dominik and Glass, Alexandra and Elgabarty, Hossam and Sandberg, Oskar J. and Grundmeier, Guido and Tiemann, Michael and Smått, Jan-Henrik and Anttu, Nicklas and de los Arcos de Pedro, Maria Teresa and Weinberger, Christian}}, issn = {{2379-3694}}, journal = {{ACS Sensors}}, publisher = {{American Chemical Society (ACS)}}, title = {{{Role of Irradiance in Light-Activated In 2 O 3 Gas Sensors: Why More Light Is Not Always Better}}}, doi = {{10.1021/acssensors.6c01100}}, year = {{2026}}, } @article{66042, author = {{Qudsia, Syeda and Weiss, Alexander and Sirkiä, Saara and Wang, Fuzeng and Rosqvist, Emil and de los Arcos de Pedro, Maria Teresa and Weinberger, Christian and Halme, Janne and Kemell, Marianna and Smått, Jan-Henrik}}, issn = {{0169-4332}}, journal = {{Applied Surface Science}}, publisher = {{Elsevier BV}}, title = {{{Influence of deposition temperature and thickness of ALD-TiO2 on planar perovskite solar cell performance}}}, doi = {{10.1016/j.apsusc.2026.166755}}, volume = {{736}}, year = {{2026}}, } @inproceedings{66037, author = {{Letzel-Alt, V and Hassani, S and Löper, Marwin Felix and Hellmich, Frank}}, publisher = {{Universität Bielefeld}}, title = {{{„I matter!?“ – Eine Studie zur Vorbildfunktion von Lehrkräften im inklusiven Klassenzimmer. Vortrag auf der 90. Sektionstagung der Arbeitsgruppe für Empirische Pädagogische Forschung (AEPF) in der DGfE. Thema: „Wissen|schaf[f]t|Ordnung? Zur Dynamik von Wissensordnungen in erziehungswissenschaftlicher Forschung, Gesellschaft und Pädagogik“. (angenommen)}}}, year = {{2026}}, } @article{66067, abstract = {{Abstract Mechanical joining processes have played an increasingly important role in the manufacturing of modern lightweight structures due to a greater variety of materials. The growing number of joining tasks requires a large number of joining elements. Friction spun joint connectors (FSJC) offer an innovative approach that meets the growing demand for flexibility. This process combines rotational movement and axial force to create targeted friction heating, enabling the production of FSJCs and the joining of various sheet metal materials. The shape of the FSJC can be optimally adapted to the joining situation in question, providing a significant advantage in terms of process chain versatility. This paper investigates FSJCs made of the steel grades C45E+C (1.1191) and 115CrV3 (1.2210), the effect of in situ quenching during the joining process. The influences of the essential parameters of rotational speed, feed rate, and FSJC length on the mechanical properties after quenching are being focused on and compared to similar conditions during joining without quenching. At the same time, the material change is analyzed to determine the effect of different alloy approaches on hardness profiles and strength characteristics in cross-tensile testing. For this purpose, systematic test series with varying process parameters are conducted and evaluated using hardness measurements and cross-tensile tests.}}, author = {{Nordieker, Ansgar Bernhard and Homberg, Werner}}, issn = {{0972-2815}}, journal = {{Transactions of the Indian Institute of Metals}}, number = {{6}}, publisher = {{Springer Science and Business Media LLC}}, title = {{{Quenching During Thermomechanical Joining Using Friction Spun Joint Connectors}}}, doi = {{10.1007/s12666-026-03846-5}}, volume = {{79}}, year = {{2026}}, } @article{66074, abstract = {{Abstract This study investigates how secondary students construct and evaluate decision trees in an open exploratory task using CODAP. By analyzing students’ tree products and oral self-reports, we identified different data-based and context-based approaches to predictor selection and stopping criteria. Students engaged with key ideas of predictive modeling, including classification, model construction, accuracy, generalization, and interpretability. Informal exploration offered rich opportunities for subsequent teaching by enabling students to begin reconstructing central technical ideas and critical tensions of predictive modeling through diverse but meaningful reasoning approaches.}}, author = {{Fleischer, Franz Yannik and Biehler, Rolf}}, issn = {{1863-9690}}, journal = {{ZDM – Mathematics Education}}, publisher = {{Springer Science and Business Media LLC}}, title = {{{Informal approaches to predictive modeling: fostering data literacy and critical engagement through decision tree construction}}}, doi = {{10.1007/s11858-026-01806-3}}, year = {{2026}}, } @unpublished{65073, abstract = {{We study the large-time behavior of the continuous-time heat kernel and of solutions to the heat equation on homogeneous trees. First, we derive sharp asymptotic formulas for the heat kernel as $t\to\infty$. Second, using them, we show that solutions with initial data in weighted $\ell^1$ classes, asymptotically factorize in $\ell^p$ norms, $p\in[1,\infty]$, as the product of the heat kernel, times a $p$-mass function, dependent on the initial condition and $p$. The $p$-mass function is described in terms of boundary averages associated with Busemann functions for $p<2$, while for $p\ge 2$, it is expressed through convolution with the ground spherical function. For comparison, the case of the integers shows that a single constant mass determines the asymptotics of solutions to the heat equation for all $p$, emphasizing the influence of the graph geometry on heat diffusion.}}, author = {{Papageorgiou, Efthymia}}, booktitle = {{2603.11232}}, title = {{{Long-time asymptotics for the heat kernel and for heat equation solutions on homogeneous trees}}}, year = {{2026}}, }