@inproceedings{62891, author = {{Schneider, Lea and Tenberge, Claudia}}, booktitle = {{Posterbeitrag im Rahmen der Jahrestagung der Deutschen Gesellschaft Für Erziehungswissenschaften (DGFE) Sektion Sonderpädagogik 22.-24.09.2025}}, location = {{Heidelberg}}, title = {{{Zwischen Universität und Unterrichtspraxis: Technikbezogene(s) Interesse und Selbstwirksamkeit von (angehenden) Lehrkräften im Sachunterricht}}}, year = {{2025}}, } @inproceedings{62882, author = {{Osnabrügge, Malin and Tenberge, Claudia}}, booktitle = {{Posterbeitrag im Rahmen der Jahrestagung Digitale Transformation für Schule und Lehrkräftebildung vom 29-30.09.2025 }}, location = {{Postdam }}, title = {{{Digital-gestützt lehren lernen: Technikbezogenen Unterricht zukunftsfähig gestalten}}}, year = {{2025}}, } @inproceedings{62886, author = {{Schneider, Lea and Tenberge, Claudia}}, booktitle = {{Posterbeitrag im Rahmen der Jahrestagung der Deutschen Gesellschaft für technische Bildung (DGTB) vom 18.09.-19.09.2025 in Chemnitz}}, location = {{Chemnitz }}, title = {{{Technische Bildung auf dem Prüfstand – TeBiS reloaded}}}, year = {{2025}}, } @article{62899, abstract = {{Abstract Purpose This protocol outlines the rigorous process for developing the new German guideline on dietary carbohydrate intake and its impact on health-related outcomes, building on a substantial body of evidence regarding carbohydrate quantity and quality. Methods A professional guideline panel has been established, and research questions have been formulated a-priori. The novel methodological approach follows a structured process and adheres to established recommendations for guidelines. Results Umbrella reviews of systematic reviews with meta-analyses of randomized controlled trials or prospective observational studies on carbohydrate quantity and quality in relation to health-related outcomes will be conducted. Relevant aspects of carbohydrate intake include total carbohydrates, dietary sugars, starch, the dietary glycaemic index, the dietary insulin index, dietary glycaemic load, dietary insulin load, dietary fibre, and whole grains. The prioritized outcomes include body weight-related outcomes, type 2 diabetes, dyslipidemia, elevated blood pressure, cardiovascular diseases, cancer, and dental caries and periodontal diseases. The literature search will be conducted in MEDLINE and Epistemonikos starting from 2015, as older reports are likely covered or superseded by more recent ones. The most comprehensive systematic review with meta-analysis with the highest methodological quality standards (according to a modified version of AMSTAR 2) will be selected for each specific association or effect. The certainty of evidence will be rated using the GRADE approach. The guideline development will follow the Evidence-to-Decision (EtD) framework. Conclusions This methodological protocol is in line with international standards and provides transparent framework for the guideline on dietary carbohydrate intake and health-related outcomes of the Germany Nutrition Society. }}, author = {{Schlesinger, Sabrina and Conrad, Johanna and Amini, Anna Maria and Buyken, Anette and Egert, Sarah and Haardt, Julia and Kalotai, Nicole and Kroke, Anja and Schwingshackl, Lukas}}, issn = {{1436-6207}}, journal = {{European Journal of Nutrition}}, number = {{5}}, publisher = {{Springer Science and Business Media LLC}}, title = {{{Dietary carbohydrate intake and health-related outcomes: a protocol for the evidence evaluation methodology for the new guideline on dietary carbohydrate intake of the German nutrition society}}}, doi = {{10.1007/s00394-025-03744-4}}, volume = {{64}}, year = {{2025}}, } @article{62898, abstract = {{Abstract Purpose This umbrella review aimed to investigate the evidence for an association of dietary intake of total protein as well as animal and plant protein with the incidence of coronary heart disease (CHD), stroke and total cardiovascular diseases (CVD). Methods PubMed, Embase and Cochrane Database were systematically searched for systematic reviews (SRs) of prospective studies with or without meta-analysis (MA) published between January 2012 and April 2024. Methodological quality, outcome-specific certainty of evidence, and overall certainty of evidence were assessed using established tools and predefined criteria. Results Ten SRs were considered eligible for the umbrella review; all were based on prospective cohort studies, and six conducted a MA. Dietary intakes of total, animal and plant protein were not associated with the risk of CHD or stroke. For CHD, the overall certainty of evidence for the absence of an association was “probable” for total, animal and plant protein. For stroke and total CVD, the overall certainty of evidence was rated as “possible” for the absence of an association with the intake of total protein and plant protein and insufficient for animal protein intake. Conclusion Given that most SRs on dietary protein intake did not indicate an association, it seems that protein intake plays no major role in the development of CVD. This investigation was registered at PROSPERO as CRD42018082395. }}, author = {{Egert, Sarah and Amini, Anna M. and Klug, Lea and Kalotai, Nicole and Haardt, Julia and Boeing, Heiner and Buyken, Anette and Kroke, Anja and Lorkowski, Stefan and Louis, Sandrine and Nimptsch, Katharina and Schulze, Matthias B. and Schwingshackl, Lukas and Siener, Roswitha and Stangl, Gabriele I. and Zittermann, Armin and Watzl, Bernhard and Ellinger, Sabine}}, issn = {{1436-6207}}, journal = {{European Journal of Nutrition}}, number = {{6}}, publisher = {{Springer Science and Business Media LLC}}, title = {{{Protein intake and cardiovascular diseases: an umbrella review of systematic reviews for the evidence-based guideline on protein intake of the German Nutrition Society}}}, doi = {{10.1007/s00394-025-03746-2}}, volume = {{64}}, year = {{2025}}, } @article{62900, author = {{Hjorth, Therese and Schadow, Alena Marie and Revheim, Ingrid and Spielau, Ulrike and Meyer, Klara and Rieder, Anne and Varela, Paula and Ballance, Simon and Koerner, Antje and Landberg, Rikard and Buyken, Anette and Dierkes, Jutta and Rosendahl-Riise, Hanne}}, issn = {{0002-9165}}, journal = {{The American Journal of Clinical Nutrition}}, number = {{3}}, pages = {{724--732}}, publisher = {{Elsevier BV}}, title = {{{Effectiveness of regular oat β-glucan–enriched bread compared with whole-grain wheat bread on long-term glycemic control in adults at risk of type 2 diabetes: a randomized controlled trial}}}, doi = {{10.1016/j.ajcnut.2025.06.018}}, volume = {{122}}, year = {{2025}}, } @inproceedings{62895, author = {{Schneider, Lea and Tenberge, Claudia}}, booktitle = {{Posterbeitrag im Rahmen der Jahrestagung Der Deutschen Gesellschaft Für Erziehungswissenschaften (DGFE) Kommission Grundschulforschung Und Pädagogik Der Primarstufe 15.-18.09.2025}}, location = {{Vorarlberg }}, title = {{{Technische Bildung zwischen Anspruch und Realität Einblicke in zwei Pilotstudien zur aktuellen Situation technischer Bildung}}}, year = {{2025}}, } @article{62029, author = {{Fahimi, Miriam and Kinder-Kurlanda, Katharina}}, issn = {{2364-2114}}, journal = {{Digital Culture & Society}}, number = {{2}}, pages = {{141--160}}, publisher = {{Transcript Verlag}}, title = {{{Friction in the Materialities of Value. Relating Transparency, Algorithms and Credit Scoring}}}, doi = {{10.14361/dcs-2023-0208}}, volume = {{9}}, year = {{2025}}, } @article{62912, abstract = {{We investigate the dynamics of wave packets in a parabolic optical lattice formed by combining an optical lattice with a global parabolic trap. Our study examines the phase space representation of the system's eigenstates by comparing them to the classical phase space of a pendulum, to which the system effectively maps. The analysis reveals that quantum states can exhibit mixed dynamics by straddling the separatrix. A key finding is that the dynamics around the separatrix enables the controlled creation of highly nonclassical states, distinguishing them from the classical oscillatory or rotational dynamics of the pendulum. By considering a finite momentum of the initial wave packet, we demonstrate various dynamical regimes. Furthermore, a slight energy mismatch between nearly degenerate states localized at opposite turning points of the trap potential results in controlled long-range dynamical tunneling. These results can be interpreted as quantum beating between a clockwise rotating and a counterclockwise rotating pendulum.}}, author = {{Ali, Usman and Holthaus, Martin and Meier, Torsten}}, issn = {{2643-1564}}, journal = {{Physical Review Research}}, number = {{1}}, publisher = {{American Physical Society (APS)}}, title = {{{Wave packet dynamics in parabolic optical lattices: From Bloch oscillations to long-range dynamical tunneling}}}, doi = {{10.1103/physrevresearch.7.013141}}, volume = {{7}}, year = {{2025}}, } @article{62910, abstract = {{Frequency-filtered photon correlations have been proven to be extremely useful in grasping how the detection process alters photon statistics. Harnessing the spectral correlations also permits refinement of the emission and unraveling of previously hidden strong correlations in a plethora of quantum-optical systems under continuous-wave excitation. In this work, we investigate such correlations for time-dependent excitation and develop a methodology to compute efficiently time-integrated correlations, which are at the heart of the photon-counting theory, and subsequently apply it to analyze the photon emission of pulsed systems. By combining this formalism with the —which facilitates frequency-resolved correlations—we demonstrate how spectral filtering enhances single-photon purity and suppresses multiphoton noise in time-bin-encoded quantum states. Specifically, filtering the central spectral peak of a dynamically driven two-level system boosts temporal coherence and improves the fidelity of time-bin entanglement preparation, even under conditions favoring multiphoton emission. These results establish spectral filtering as a critical tool for tailoring photon statistics in pulsed quantum light sources.}}, author = {{Bermúdez-Feijóo, Santiago and Zubizarreta Casalengua, Eduardo and Müller, Kai and Jöns, Klaus D.}}, issn = {{2643-1564}}, journal = {{Physical Review Research}}, number = {{3}}, publisher = {{American Physical Society (APS)}}, title = {{{Spectral correlations of dynamical resonance fluorescence}}}, doi = {{10.1103/jmy9-bd3l}}, volume = {{7}}, year = {{2025}}, } @article{62911, abstract = {{In this paper, we theoretically study the spectral and temporal properties of pulsed spontaneous parametric down-conversion (SPDC) generated in lossy waveguides. Our theoretical approach is based on the formalism of Gaussian states and the Langevin equation, which is elaborated for weak parametric down-conversion and photon-number-unresolved click detection. Using the example of frequency-degenerate type-II SPDC generated under the pump-idler group-velocity-matching condition, we show how the joint-spectral intensity, mode structure, normalized second-order correlation function, and Hong-Ou-Mandel interference pattern depend on internal losses of the SPDC process. We found that the joint-spectral intensity is almost insensitive to internal losses, while the second-order correlation function shows a strong dependence on them, being different for the signal and idler beams in the presence of internal losses. Based on the sensitivity of the normalized second-order correlation function, we show how its measurement can be used to experimentally determine internal losses.}}, author = {{Kopylov, Denis A. and Stefszky, Michael and Meier, Torsten and Silberhorn, Christine and Sharapova, Polina R.}}, issn = {{2643-1564}}, journal = {{Physical Review Research}}, number = {{3}}, publisher = {{American Physical Society (APS)}}, title = {{{Spectral and temporal properties of type-II parametric down-conversion: The impact of losses during state generation}}}, doi = {{10.1103/zp72-7qwl}}, volume = {{7}}, year = {{2025}}, } @inproceedings{62913, author = {{Hunstig, Anna and Peitz, Sebastian and Rose, Hendrik and Meier, Torsten}}, booktitle = {{2024 IEEE 63rd Conference on Decision and Control (CDC)}}, publisher = {{IEEE}}, title = {{{Accelerating the analysis of optical quantum systems using the Koopman operator}}}, doi = {{10.1109/cdc56724.2024.10886589}}, year = {{2025}}, } @inproceedings{62920, author = {{Fox, Marvin Lee and Peeters, Hendrik and Fechner, Sabine}}, booktitle = {{GDCP Jahrestagung}}, keywords = {{Artificial intelligence, education, chemistry}}, location = {{Frankfurt}}, title = {{{KI-Einsatz durch Lernende im Erkenntnisgewinnungsprozess - ein Review}}}, year = {{2025}}, } @article{60568, author = {{Bocchini, Adriana and Kollmann, S. and Gerstmann, Uwe and Schmidt, Wolf Gero and Grundmeier, Guido}}, issn = {{0039-6028}}, journal = {{Surface Science}}, publisher = {{Elsevier BV}}, title = {{{Phosphonic acid adsorption on α-Bi2O3 surfaces}}}, doi = {{10.1016/j.susc.2025.122776}}, volume = {{760}}, year = {{2025}}, } @article{61353, abstract = {{Abstract Muonic hydrogen is an exotic atom where a muon instead of an electron is bound to a proton. The comparably high mass of the muon (≈ 207 · me ) has two important effects, (i) the reduced mass of the system becomes more important, and (ii) the muon is localized much closer to the nucleus. Thus, muonic hydrogen is not only excellently suitable for evaluating highly precise quantum electrodynamic (QED) calculations, but may also be used for assessing new approaches including finite nuclear size (FNS) effects to evaluate the proton structure and improve calculation schemes for the hyperfine splittings of many-particle systems, as e.g. to be implemented in density functional theory (DFT) software packages. Here, starting from Dirac’s equation we calculate the relativistic hyperfine splitting of the ground state and several excited states of muonic hydrogen analytically for different charge and magnetization models. The FNS related hyperfine shifts are compared with the differences between QED calculations and experimental measurements. This comparison also allows to unravel the role of the reduced mass, which is on one hand crucial in case of muonic atoms, but on the other hand is by no means well defined in relativistic quantum mechanics.}}, author = {{Franzke, Katharina L. and Schmidt, Wolf Gero and Gerstmann, Uwe}}, issn = {{1742-6588}}, journal = {{Journal of Physics: Conference Series}}, number = {{1}}, publisher = {{IOP Publishing}}, title = {{{Finite-size and relativistic effects onto hyperfine interaction of muonic hydrogen}}}, doi = {{10.1088/1742-6596/3027/1/012001}}, volume = {{3027}}, year = {{2025}}, } @inproceedings{61352, author = {{Devaraj, Vasanthan and Ruiz Alvarado, Isaac Azahel and Lee, Jongmin and Oh, Jin-Woo and Gerstmann, Uwe and Schmidt, Wolf Gero and Zentgraf, Thomas}}, booktitle = {{2025 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)}}, publisher = {{IEEE}}, title = {{{Dynamic and Reversible Plasmonic Nanogaps From Isolated Dimer Nanoparticles via Self-Assembly}}}, doi = {{10.1109/cleo/europe-eqec65582.2025.11109762}}, year = {{2025}}, } @article{62866, abstract = {{Abstract The development of efficient and broadly applicable n‐doping strategies for organic semiconductors (OSCs) is crucial for advancing the performance of various organic electronic devices. Here, a novel nucleophilic‐attack n‐doping mechanism is unveiled that achieves exceptionally high conductivity in doped OSC films and demonstrates broad applicability across OSCs. The remarkable efficacy of n‐Butyl lithium (n‐BuLi) is highlighted in n‐doping C 60 and PC 61 BM, achieving a conductivity of 1.27 S cm −1 and 2.57 S cm −1 , respectively, which are among the highest reported values for these materials. The investigation reveals that the n‐BuLi anion interacts with electron‐deficient units in OSCs, generating a carbanion that facilitates efficient electron transfer for n‐doping. This mechanism is further validated across diverse fullerenes, polymeric, and small molecule OSCs, and is extendable to other high‐performance dopants such as tert‐Butyllithium (tert‐BuLi) and sodium ethoxide (NaOEt). Device studies show that n‐BuLi‐doped C 60 enables substantially improved diode rectification, attributed to greater junction built‐in potential. These findings establish a unified chemical‐bonding‐based n‐doping paradigm, complementing existing electrophilic‐attack p‐doping concepts, and pave the way for achieving efficient doping of OSCs for advanced organic electronic applications. }}, author = {{Wei, Huan and Wu, Tong and Dong, Chuanding and Chen, Chen and Gong, Zhenqi and Xia, Jiangnan and Peng, Chengyuan and Ding, Jiaqi and Zhang, Yu and Shi, Wenpei and Schumacher, Stefan and Zhang, Xue and Bai, Yugang and Jiang, Lang and Liao, Lei and Nguyen, Thuc‐Quyen and Hu, Yuanyuan}}, issn = {{2198-3844}}, journal = {{Advanced Science}}, publisher = {{Wiley}}, title = {{{Efficient n‐Doping of Organic Semiconductors via a Broadly Applicable Nucleophilic‐Attack Mechanism}}}, doi = {{10.1002/advs.202520487}}, year = {{2025}}, } @article{60992, abstract = {{Non-Hermitian systems hosting exceptional points (EPs) exhibit enhanced sensitivity and unconventional mode dynamics. Going beyond isolated EPs, here we report on the existence of exceptional rings (ERs) in planar optical resonators with specific form of circular dichroism and TE-TM splitting. Such exceptional rings possess intriguing topologies as discussed earlier for condensed matter systems, but they remain virtually unexplored in presence of nonlinearity, for which our photonic platform is ideal. We find that when Kerr-type nonlinearity (or saturable gain) is introduced, the linear ER splits into two concentric ERs, with the larger-radius ring being a ring of third-order EPs. Transitioning from linear to nonlinear regime, we present a rigorous analysis of spectral topology and report enhanced and adjustable perturbation response in the nonlinear regime. Whereas certain features are specific to our system, the results on non-Hermitian spectral topology and nonlinearity-enhanced perturbation response are generic and equally relevant to a broad class of other nonlinear non-Hermitian systems, providing a universal framework for engineering ERs and EPs in nonlinear non-Hermitian systems.}}, author = {{Wingenbach, Jan and Ares Santos, Laura and Ma, Xuekai and Sperling, Jan and Schumacher, Stefan}}, journal = {{Arxiv}}, publisher = {{Arxiv}}, title = {{{Sensitivity and Topology of Exceptional Rings in Nonlinear Non-Hermitian Planar Optical Microcavities}}}, doi = {{10.48550/ARXIV.2507.07099}}, year = {{2025}}, } @article{62926, abstract = {{Abstract Negatively charged boron vacancies () in hexagonal boron nitride (hBN) are emerging as promising solid‐state spin qubits due to their optical accessibility, structural simplicity, and compatibility with photonic platforms. However, quantifying the density of such defects in thin hBN flakes has remained elusive, limiting progress in device integration and reproducibility. Here, an all‐optical method is presented to quantify defect density in hBN by correlating Raman and photoluminescence (PL) signatures with irradiation fluence. Two defect‐induced Raman modes, D1 and D2, are identified and assigned them to vibrational modes of using polarization‐resolved Raman measurements and density functional theory (DFT) calculations. By adapting a numerical model originally developed for graphene, an empirical relationship linking Raman (D1, E 2g ) and PL intensities is established to absolute defect densities. This method is universally applicable across various irradiation types and uniquely suited for thin flakes, where conventional techniques fail. The approach enables accurate, direct, and non‐destructive quantification of spin defect densities down to 10 15  defects/cm 3 , offering a powerful tool for optimizing and benchmarking hBN for quantum optical applications. }}, author = {{Patra, Atanu and Konrad, Paul and Sperlich, Andreas and Biktagirov, Timur and Schmidt, Wolf Gero and Spencer, Lesley and Aharonovich, Igor and Höfling, Sven and Dyakonov, Vladimir}}, issn = {{1616-301X}}, journal = {{Advanced Functional Materials}}, publisher = {{Wiley}}, title = {{{Quantifying Spin Defect Density in hBN via Raman and Photoluminescence Analysis}}}, doi = {{10.1002/adfm.202517851}}, year = {{2025}}, } @article{54110, author = {{Heise, Tillmann}}, issn = {{2195-0598}}, journal = {{Forum Interdisziplinäre Begriffsgeschichte }}, number = {{1}}, pages = {{43--57}}, title = {{{Umkämpfte Semantiken des ‚Europäischen‘ in der Weltanschauungsliteratur der Zwischenkriegszeit}}}, doi = {{https://doi.org/10.13151/fib.2025.01.05}}, volume = {{13/14}}, year = {{2025}}, }