@article{52758, author = {{Harder, Hans and Peitz, Sebastian}}, title = {{{On the continuity and smoothness of the value function in reinforcement learning and optimal control}}}, year = {{2024}}, } @unpublished{52342, abstract = {{We introduce the concept of a k-token signed graph and study some of its combinatorial and algebraic properties. We prove that two switching isomorphic signed graphs have switching isomorphic token graphs. Moreover, we show that the Laplacian spectrum of a balanced signed graph is contained in the Laplacian spectra of its k-token signed graph. Besides, we introduce and study the unbalance level of a signed graph, which is a new parameter that measures how far a signed graph is from being balanced. Moreover, we study the relation between the frustration index and the unbalance level of signed graphs and their token signed graphs. }}, author = {{Dalfó, C. and Fiol, M. A. and Steffen, Eckhard}}, booktitle = {{arXiv:2403.02924}}, title = {{{On token signed graphs}}}, year = {{2024}}, } @article{50409, abstract = {{AbstractBackgroundReal‐world problems are important in math instruction, but they do not necessarily trigger students' task motivation. Personalizing real‐world problems by (1) matching problems to students' shared living environment (context personalization) and (2) asking students to pose their own problems (active personalization) might be two interventions to increase students' task motivation.AimIn the current study, we investigated the effects of context personalization and active personalization on students' self‐efficacy expectations, intrinsic value, attainment value, utility value, and cost.SampleThe participants were 28 fifth‐ and sixth‐grade students who voluntarily took part in a six‐month afterschool program in which they posed problems with the aim of creating a math walk in their hometown.MethodUsing a within‐subjects design, at the end of the afterschool program, the students rated their self‐efficacy expectations and task values for four self‐developed problems associated with their hometown, four peer‐developed problems associated with their hometown, and four instructor‐provided problems associated with unfamiliar locations.ResultsStudents reported higher self‐efficacy expectations, intrinsic value, attainment value, and utility value for active‐personalized than non‐personalized problems. To a lesser extent, context personalization promoted intrinsic value and attainment value. No effect was found for cost.ConclusionsActive personalization (i.e. asking students to pose their own real‐world problems) is suited to enhance students' task motivation, specifically their self‐efficacy expectations, intrinsic value, attainment value, and utility value. Context personalization still boosts students' intrinsic value and attainment value. Implementation in classroom instruction is discussed.}}, author = {{Schoenherr, Johanna}}, issn = {{0007-0998}}, journal = {{British Journal of Educational Psychology}}, keywords = {{Developmental and Educational Psychology, Education}}, publisher = {{Wiley}}, title = {{{Personalizing real‐world problems: Posing own problems increases self‐efficacy expectations, intrinsic value, attainment value, and utility value}}}, doi = {{10.1111/bjep.12653}}, year = {{2024}}, } @inbook{51130, author = {{Eickelmann, Birgit and Barbovschi, M. and Holmarsdottir, H.B. and Parsanoglou, D. and Sisask, M. and Labusch, Amelie}}, booktitle = {{Understanding the everyday digital lives of children and young people}}, editor = {{Holmarsdottir, H.B. and Seland, I. and Hyggen, C. and Roth, M.}}, publisher = {{Palgrave Macmillan}}, title = {{{Perspectives of children and young people on their education as preparing for their future in the digital age: In-depth qualitative study in five European countries.}}}, doi = {{10.1007/978-3-031-46929-9}}, year = {{2024}}, } @misc{50815, author = {{Schulz, Maurice}}, title = {{{Phosphorhaltige Lasersinter-Materialien mit Flammschutzwirkung: Optimierung und Analyse der Recyclingfähigkeit (Studienarbeit)}}}, year = {{2024}}, } @article{51104, author = {{Liang, Qian and Ma, Xuekai and Gu, Chunling and Ren, Jiahuan and An, Cunbin and Fu, Hongbing and Schumacher, Stefan and Liao, Qing}}, journal = {{Journal of the American Chemical Society (JACS)}}, title = {{{Photochemical Reaction Enabling the Engineering of Photonic Spin−Orbit Coupling in Organic-Crystal Optical Microcavities}}}, doi = {{10.1021/jacs.3c11373}}, year = {{2024}}, } @inbook{50982, author = {{Eke, Norbert}}, booktitle = {{andererseits. Yearbook of Transatlantic German Studies 11/12 (2022/23)}}, editor = {{Donahue, William Collins and Mein, Georg and Parr, Rolf}}, pages = {{349--362}}, publisher = {{transcript Verlag}}, title = {{{Poetologien mehrdeutigen Erinnerns in der deutschsprachigen Gegenwartsliteratur.}}}, year = {{2024}}, } @book{52725, editor = {{Becher, Andrea}}, publisher = {{Klinkhardt}}, title = {{{Politische Bildung im Sachunterricht. Potenziale - Positionen - Perspektiven}}}, year = {{2024}}, } @unpublished{51204, abstract = {{Given a real semisimple connected Lie group $G$ and a discrete torsion-free subgroup $\Gamma < G$ we prove a precise connection between growth rates of the group $\Gamma$, polyhedral bounds on the joint spectrum of the ring of invariant differential operators, and the decay of matrix coefficients. In particular, this allows us to completely characterize temperedness of $L^2(\Gamma\backslash G)$ in this general setting.}}, author = {{Lutsko, Christopher and Weich, Tobias and Wolf, Lasse Lennart}}, booktitle = {{arXiv:2402.02530}}, title = {{{Polyhedral bounds on the joint spectrum and temperedness of locally symmetric spaces}}}, year = {{2024}}, } @inbook{51258, author = {{Schroeter-Wittke, Harald and Jacke, Christoph}}, booktitle = {{(Un)verfügbar - Kulturen des Heiligen}}, editor = {{Egidi, Margreth and Peters, Ludmila and Schmidt, Jochen}}, isbn = {{978-3-8376-6611-3}}, pages = {{273--300}}, publisher = {{Bielefeld University Press}}, title = {{{Pop-Ikonen. Transformationen des Heiligen in der deutschen Pop(musik)kultur}}}, year = {{2024}}, }