TY - JOUR AU - Bruns, Bastian AU - Gross, Michel AU - Grünewald, Marcus AU - Bertsch, Valentin AU - Riese, Julia ID - 52229 JF - Journal of Cleaner Production KW - Industrial and Manufacturing Engineering KW - Strategy and Management KW - General Environmental Science KW - Renewable Energy KW - Sustainability and the Environment KW - Building and Construction SN - 0959-6526 TI - A multi-step framework for the design of a flexible power-to-methane process ER - TY - JOUR AB - In this work, we consider optimal control problems for mechanical systems with fixed initial and free final state and a quadratic Lagrange term. Specifically, the dynamics is described by a second order ODE containing an affine control term. Classically, Pontryagin's maximum principle gives necessary optimality conditions for the optimal control problem. For smooth problems, alternatively, a variational approach based on an augmented objective can be followed. Here, we propose a new Lagrangian approach leading to equivalent necessary optimality conditions in the form of Euler-Lagrange equations. Thus, the differential geometric structure (similar to classical Lagrangian dynamics) can be exploited in the framework of optimal control problems. In particular, the formulation enables the symplectic discretisation of the optimal control problem via variational integrators in a straightforward way. AU - Leyendecker, Sigrid AU - Maslovskaya, Sofya AU - Ober-Blöbaum, Sina AU - Almagro, Rodrigo T. Sato Martín de AU - Szemenyei, Flóra Orsolya ID - 53101 JF - Journal of Computational Dynamics KW - Optimal control problem KW - Lagrangian system KW - Hamiltonian system KW - Variations KW - Pontryagin's maximum principle. SN - 2158-2491 TI - A new Lagrangian approach to control affine systems with a quadratic Lagrange term ER - TY - JOUR AU - Stumpe, Miriam ID - 52092 JF - Transportation Research Procedia SN - 2352-1465 TI - A new mathematical formulation for the simultaneous optimization of charging infrastructure and vehicle schedules for electric bus systems VL - 78 ER - TY - JOUR AB - AbstractApproximation of subdifferentials is one of the main tasks when computing descent directions for nonsmooth optimization problems. In this article, we propose a bisection method for weakly lower semismooth functions which is able to compute new subgradients that improve a given approximation in case a direction with insufficient descent was computed. Combined with a recently proposed deterministic gradient sampling approach, this yields a deterministic and provably convergent way to approximate subdifferentials for computing descent directions. AU - Gebken, Bennet ID - 51208 JF - Computational Optimization and Applications KW - Applied Mathematics KW - Computational Mathematics KW - Control and Optimization SN - 0926-6003 TI - A note on the convergence of deterministic gradient sampling in nonsmooth optimization ER - TY - GEN AU - Baumann, Martin AU - Bengler, Klaus AU - Berndt-Tolzmann, Sandro AU - Brettin, Leon Johann AU - Diermeyer, Frank AU - Fastenmeier, Wolfgang AU - Fleischer, Torsten AU - Flemisch, Frank AU - Frey, Alexander AU - Gräcmann, Nicole AU - Hardes, Tobias AU - Herzberger, Nicolas AU - Hesse, Tobias AU - Huetten, Manuela AU - Klingler, Florian AU - Jipp, Meike AU - Kolarova, Viktoriya AU - Kühn, Matthias AU - Maag, Christian AU - Marx, Torsten AU - Maurer, Markus AU - Merkel, Nora AU - Oehl, Michael AU - Oubaid, Viktor AU - Plum, Lena AU - Riegelhuth, Gerd AU - Salem, Nayel Fabian AU - Schrank, Andreas AU - Shi, Elisabeth AU - Sommer, Christoph AU - Wasser, Joscha AU - Wietfeld, Christian ID - 52872 TI - Abschlussbericht der Arbeitsgruppe "Forschungsbedarf Teleoperation" ER - TY - JOUR AU - Zietlow, Christian AU - Lindner, Jörg ID - 52090 JF - Numerical Algorithms TI - ADMM-TGV image restoration for scientific applications with unbiased parameter choice ER - TY - CONF AU - Schryen, Guido AU - Marrone, Mauricio AU - Yang, Jiaqi ID - 47427 T2 - Proceedings of the 57th Hawaii International Conference on System Science (HICSS 2024) TI - Adopting Generative AI for Literature Reviews: An Epistemological Perspective ER - TY - GEN AU - Treder, Alexandra ID - 50208 T2 - Forschungsportal für Spracherwerb und Migration (daz-portal) TI - Alexandra Treder (Universität Paderborn) rezensiert: Döll, Marion & Michalak, Magdalena (2023): Deutsch als Zweitsprache und inklusive Bildung. [Deutsch als Zweitsprache – Positionen, Perspektiven, Potenziale, Bd. 3]. Münster: Waxmann, 142 Seiten. ISBN 978-3-8309-4711-0. VL - 26 ER - TY - GEN AU - Breckner, Anne ID - 52465 TI - All you need is love… Gedanken für das neue Jahr ER - TY - CHAP AB - Twitter ist jetzt X und befindet sich auf dem absteigenden Ast. Auf diesem Ast sitzt Facebook bereits seit längerem. Der Kurzvideodienst Vine, Vorgänger von TikTok, ist Geschichte. Und auch bei Google klingeln die Alarmglocken angesichts der „neuen“ Konkurrenz durch Microsoft und ChatGPT. Umso dringlicher wird also die Historisierung der „sozialen Medien“, das heißt, sie in ihren historischen Kontext einzuordnen und ihren Mythos zu entzaubern. Dabei wartet das Vorhaben mit einer doppelten Herausforderung auf: Erstens, dass es sich bei den Unternehmen der Branche und zweitens auch bei den dort gebildeten Gemeinschaften um recht flüchtige, wandelhaften Gestalten handelt. Scheitern und Wandel ist Teil der „sozialen Medien“ – und sei es nur in der schnellen Abfolge der Moden des „nächsten großen Dings“. Dementsprechend versucht dieser Beitrag mit einem systematischeren Ansatz als dem der gesellschaftlichen Selbstbeschreibung, die Entwicklung des sozio-digitalen Phänomens „soziale Medien“ in dessen Zeitkontext einzuordnen. AU - Schmitt, Martin ID - 52538 KW - Digitalgeschichte KW - Soziale Medien KW - Technikgeschichte KW - Wirtschaftsgeschichte KW - Digitalisierung KW - Twitter KW - Facebook KW - Meta T2 - Soziale Medien – wie sie wurden, was sie sind TI - Alles geht? Die jüngste Geschichte der „sozialen Medien“. Zwischen Wirtschaft und Gemeinschaft ER - TY - JOUR AU - Kullmer, Gunter AU - Weiß, Deborah AU - Schramm, Britta ID - 51737 JF - Engineering Fracture Mechanics KW - Mechanical Engineering KW - Mechanics of Materials KW - General Materials Science SN - 0013-7944 TI - An alternative and robust formulation of the fatigue crack growth rate curve for long cracks VL - 296 ER - TY - JOUR AB - We propose an indicator for detecting anomalous stock market valuation in real time such that market participants receive timely signals so as to be able to take stabilizing action. Unlike existing approaches, our anomaly indicator introduces three methodological novelties. First, we use an endogenous, purely data-driven, nonparametric trend identification method to separate long-term market movements from more short-term ones. Second, we apply SETAR models that allow for asymmetric expansions and contractions around the long-term trend and find systematic stock price cycles. Third, we implement these findings in our indicator and conduct real-time market forecasts, which have so far been neglected in the literature. Applications of our indicator using monthly S&P 500 stock data from 1970 to the end of 2022 show that short-term anomalous market movements can be identified in real time up to one year ahead. We predict all major anomalies, including the 1987 Bubble and the initial phase of the Financial Crisis that began in 2007. In total, our anomaly indicator identifies more than 80% of all – even minor – anomalous episodes. Thus, smoothing market exaggerations through early signaling seems possible. AU - Fritz, Marlon AU - Gries, Thomas AU - Wiechers, Lukas ID - 50719 JF - Quantitative Finance KW - General Economics KW - Econometrics and Finance KW - Finance SN - 1469-7688 TI - An early indicator for anomalous stock market performance ER - TY - CONF AU - Kruse, Stephan AU - Schwabe, Tobias AU - Kneuper, Pascal AU - Kurz, Heiko G. AU - Meinecke, March-Michael AU - Scheytt, Christoph ID - 50287 T2 - German Microwave Conference (GeMiC) TI - Analysis and Simulation of a Photonic Multiband FMCW Radar Sensor System using Nyquist Pulses ER - TY - JOUR AB - Through tailoring the geometry and design of biomaterials, additive manufacturing is revolutionizing the production of metallic patient-specific implants, e.g., the Ti-6Al-7Nb alloy. Unfortunately, studies investigating this alloy showed that additively produced samples exhibit anisotropic microstructures. This anisotropy compromises the mechanical properties and complicates the loading state in the implant. Moreover, the minimum requirements as specified per designated standards such as ISO 5832-11 are not met. The remedy to this problem is performing a conventional heat treatment. As this route requires energy, infrastructure, labor, and expertise, which in turn mean time and money, many of the additive manufacturing benefits are negated. Thus, the goal of this work was to achieve better isotropy by applying only adapted additive manufacturing process parameters, specifically focusing on the build orientations. In this work, samples orientated in 90°, 45°, and 0° directions relative to the building platform were manufactured and tested. These tests included mechanical (tensile and fatigue tests) as well as microstructural analyses (SEM and EBSD). Subsequently, the results of these tests such as fractography were correlated with the acquired mechanical properties. These showed that 90°-aligned samples performed best under fatigue load and that all requirements specified by the standard regarding monotonic load were met. AU - Milaege, Dennis AU - Eschemann, Niklas AU - Hoyer, Kay-Peter AU - Schaper, Mirko ID - 52738 IS - 2 JF - Crystals KW - Inorganic Chemistry KW - Condensed Matter Physics KW - General Materials Science KW - General Chemical Engineering SN - 2073-4352 TI - Anisotropic Mechanical and Microstructural Properties of a Ti-6Al-7Nb Alloy for Biomedical Applications Manufactured via Laser Powder Bed Fusion VL - 14 ER - TY - CONF AB - What is preventing us from building a NLP system that could help real people in real situations, for instance when they need legal advice but don{’}t understand law? This question is trickier than one might think, because legal systems vary from country to country, so do the law books, availability of data, and incomprehensibility of legalese. In this paper we focus Germany (which employs the civil-law system where, roughly speaking, interpretation of law codes dominates over precedence) and lay a foundational work to address the laymen{’}s legal question answering empirically. We create GerLayQA, a new dataset comprising of 21k laymen{’}s legal questions paired with answers from lawyers and grounded to concrete law book paragraphs. We experiment with a variety of retrieval and answer generation models and provide an in-depth analysis of limitations, which helps us to provide first empirical answers to the question above. AU - Büttner, Marius AU - Habernal, Ivan ED - Graham, Yvette ED - Purver, Matthew ID - 52841 T2 - Proceedings of the 18th Conference of the European Chapter of the Association for Computational Linguistics (Volume 1: Long Papers) TI - Answering legal questions from laymen in German civil law system ER - TY - JOUR AU - Eke, Norbert Otto ID - 50985 JF - Studia theodisca 31 TI - Artaud ± Brecht Peter Weiss’ Theater-Revolution (Marat/Sade) ER - TY - JOUR AU - Weber, Katharina S. AU - Schlesinger, Sabrina AU - Lang, Alexander AU - Straßburger, Klaus AU - Maalmi, Haifa AU - Zhu, Anna AU - Zaharia, Oana-Patricia AU - Strom, Alexander AU - Bönhof, Gidon J. AU - Goletzke, Janina AU - Trenkamp, Sandra AU - Wagner, Robert AU - Buyken, Anette AU - Lieb, Wolfgang AU - Roden, Michael AU - Herder, Christian AU - Roden, M. AU - Al-Hasani, H. AU - Belgardt, B. AU - Lammert, E. AU - Bönhof, G. AU - Geerling, G. AU - Herder, C. AU - Icks, A. AU - Jandeleit-Dahm, K. AU - Kotzka, J. AU - Kuß, O. AU - Rathmann, W. AU - Schlesinger, S. AU - Schrauwen-Hinderling, V. AU - Szendroedi, J. AU - Trenkamp, S. AU - Wagner, R. ID - 50740 JF - Nutrition, Metabolism and Cardiovascular Diseases KW - Cardiology and Cardiovascular Medicine KW - Nutrition and Dietetics KW - Endocrinology KW - Diabetes and Metabolism KW - Medicine (miscellaneous) SN - 0939-4753 TI - Association of dietary patterns with diabetes-related comorbidities varies among diabetes endotypes ER - TY - GEN AU - Schmidt, Rebecca ID - 51301 T2 - SozMethode TI - Automatische Transkriptionssoftware – ein Erfahrungsbericht. ER - TY - JOUR AU - Huybrechts, Yves AU - Karaca, Resul ID - 49772 JF - Synergies Pays germanophones SN - 1866-5268 TI - BelgienNet – une plateforme pour l’accès aux langues et cultures de la Belgique VL - 16 ER - TY - JOUR AB - Negated statements require more processing efforts than assertions. However, in certain contexts, repeating negations undergo adaptation, which over time mitigates the effort. Here, we ask negations hamper visual processing and whether consecutive repetitions mitigate its influence. We assessed the overall attentional capacity and its distribution, the relative weight, quantitatively using the formal Theory of Visual Attention (TVA). Here, we employed a very simple form for negations, binary negations. Negated instructions, expressing the only alternative to the core supposition, were cognitively demanding, resulting in a loss of attentional capacity in three experiments. The overall attentional capacity recovered gradually but stagnated at a lower level than with assertions, even after many repetitions. Additionally, negations distributed the attention equally between target and reference stimulus. Repetitions slightly increased the reference' share of attention. Assertions, on the other hand, shifted the attentional weight towards the target. Few repetitions slightly decreased the bias towards the target, many repetitions increased the bias. AU - Banh, Ngoc Chi AU - Tünnermann, Jan AU - Rohlfing, Katharina J. AU - Scharlau, Ingrid ID - 53072 JF - Attention, Perception, & Psychophysics TI - Benefiting from Binary Negations? Verbal Negations Decrease Visual Attention and Balance Its Distribution ER - TY - JOUR AB - While shallow decision trees may be interpretable, larger ensemble models like gradient-boosted trees, which often set the state of the art in machine learning problems involving tabular data, still remain black box models. As a remedy, the Shapley value (SV) is a well-known concept in explainable artificial intelligence (XAI) research for quantifying additive feature attributions of predictions. The model-specific TreeSHAP methodology solves the exponential complexity for retrieving exact SVs from tree-based models. Expanding beyond individual feature attribution, Shapley interactions reveal the impact of intricate feature interactions of any order. In this work, we present TreeSHAP-IQ, an efficient method to compute any-order additive Shapley interactions for predictions of tree-based models. TreeSHAP-IQ is supported by a mathematical framework that exploits polynomial arithmetic to compute the interaction scores in a single recursive traversal of the tree, akin to Linear TreeSHAP. We apply TreeSHAP-IQ on state-of-the-art tree ensembles and explore interactions on well-established benchmark datasets. AU - Muschalik, Maximilian AU - Fumagalli, Fabian AU - Hammer, Barbara AU - Huellermeier, Eyke ID - 53073 IS - 13 JF - Proceedings of the AAAI Conference on Artificial Intelligence KW - Explainable Artificial Intelligence SN - 2374-3468 TI - Beyond TreeSHAP: Efficient Computation of Any-Order Shapley Interactions for Tree Ensembles VL - 38 ER - TY - GEN AB - What is the power of polynomial-time quantum computation with access to an NP oracle? In this work, we focus on two fundamental tasks from the study of Boolean satisfiability (SAT) problems: search-to-decision reductions, and approximate counting. We first show that, in strong contrast to the classical setting where a poly-time Turing machine requires $\Theta(n)$ queries to an NP oracle to compute a witness to a given SAT formula, quantumly $\Theta(\log n)$ queries suffice. We then show this is tight in the black-box model - any quantum algorithm with "NP-like" query access to a formula requires $\Omega(\log n)$ queries to extract a solution with constant probability. Moving to approximate counting of SAT solutions, by exploiting a quantum link between search-to-decision reductions and approximate counting, we show that existing classical approximate counting algorithms are likely optimal. First, we give a lower bound in the "NP-like" black-box query setting: Approximate counting requires $\Omega(\log n)$ queries, even on a quantum computer. We then give a "white-box" lower bound (i.e. where the input formula is not hidden in the oracle) - if there exists a randomized poly-time classical or quantum algorithm for approximate counting making $o(log n)$ NP queries, then $\text{BPP}^{\text{NP}[o(n)]}$ contains a $\text{P}^{\text{NP}}$-complete problem if the algorithm is classical and $\text{FBQP}^{\text{NP}[o(n)]}$ contains an $\text{FP}^{\text{NP}}$-complete problem if the algorithm is quantum. AU - Gharibian, Sevag AU - Kamminga, Jonas ID - 50406 T2 - arXiv:2401.03943 TI - BQP, meet NP: Search-to-decision reductions and approximate counting ER - TY - CONF AU - Tews, Karina AU - Teutenberg, Dominik AU - Meschut, Gerson AU - Buczek, Moritz AU - Duffe, Tobias AU - Kullmer, Gunter ID - 52212 T2 - 24. Kolloquium: Gemeinsame Forschung in der Klebtechnik TI - Bruchmechanisches Schnittebenenkonzept zur lebensdauergerechten Auslegung von hyperelastischen Klebverbindungen bei multiaxialen und variablen Belastungsamplituden ER - TY - CONF AU - Scholtysik, Michel AU - Rohde, Malte AU - Koldewey, Christian AU - Dumitrescu, Roman ID - 49364 TI - Business strategy taxonomy and solution patterns for the circular economy ER - TY - JOUR AB - Charge transfer mechanism in the deprotonation-induced n-type doping of PCBM. AU - Dong, Chuan-Ding AU - Bauch, Fabian AU - Hu, Yuanyuan AU - Schumacher, Stefan ID - 51221 IS - 5 JF - Physical Chemistry Chemical Physics KW - Physical and Theoretical Chemistry KW - General Physics and Astronomy SN - 1463-9076 TI - Charge transfer in superbase n-type doping of PCBM induced by deprotonation VL - 26 ER - TY - CHAP AU - Labusch, Amelie AU - Eickelmann, Birgit AU - Casamassima, Gianna AU - Drossel, Kerstin AU - Gudmundsdottir, G.B. AU - Kazani, A. AU - Mifsud, L. AU - Symeonaki, M. AU - Teidla-Kunitsõn, G. ED - Holmarsdottir, H.B. ED - Seland, I. ED - Hyggen, C. ED - Roth, M. ID - 51098 T2 - Understanding the everyday digital lives of children and young people TI - Children and young people’s ICT experiences in school education: Participatory research design to engage children and young people as experts in research ER - TY - GEN AU - Staffel, Florian Lukas ID - 51624 IS - 2 T2 - Sehepunkte TI - Christian Marx: Wegbereiter der Globalisierung. Multinationale Unternehmen der westeuropäischen Chemieindustrie in der Zeit nach dem Boom (1960er-2000er Jahre) (= Nach dem Boom), Göttingen 2023. VL - 24 ER - TY - CONF AU - Scholtysik, Michel AU - Rohde, Malte AU - Koldewey, Christian AU - Dumitrescu, Roman ID - 49363 TI - Circular Product-Service-System Ideation Canvas – A Framework for the Design of circular Product-Service-System Ideas ER - TY - JOUR AU - Intveen, Julie ID - 52332 JF - MEIN FACH - Englisch Sek II TI - Commonwealth Connections. Discovering global dynamics through Model UN discourse VL - 1 ER - TY - JOUR AB - Broadband coherent anti-Stokes Raman scattering (BCARS) is a powerful spectroscopy method combining high signal intensity with spectral sensitivity, enabling rapid imaging of heterogeneous samples in biomedical research and, more recently, in crystalline materials. However, BCARS encounters spectral distortion due to a setup-dependent non-resonant background (NRB). This study assesses BCARS reproducibility through a round robin experiment using two distinct BCARS setups and crystalline materials with varying structural complexity, including diamond, 6H-SiC, KDP, and KTP. The analysis compares setup-specific NRB correction procedures, detected and NRB-removed spectra, and mode assignment. We determine the influence of BCARS setup parameters like pump wavelength, pulse width, and detection geometry and provide a practical guide for optimizing BCARS setups for solid-state applications. AU - Hempel, Franz AU - Vernuccio, Federico AU - König, Lukas AU - Buschbeck, Robin AU - Rüsing, Michael AU - Cerullo, Giulio AU - Polli, Dario AU - Eng, Lukas M. ID - 49652 IS - 1 JF - Applied Optics KW - Atomic and Molecular Physics KW - and Optics KW - Engineering (miscellaneous) KW - Electrical and Electronic Engineering SN - 1559-128X TI - Comparing transmission- and epi-BCARS: a round robin on solid-state materials VL - 63 ER - TY - CHAP AU - Treder, Alexandra ED - Cuéllar Valcárcel, María de Lourdes ED - Gerena Meléndez, Alicia Alexesteva ED - Gil Carillo, Ittay Osiris ID - 48943 T2 - Memorias del III Congreso Internacional de Lenguas, Lingüística y Traducción TI - Concepciones de cultura y de encuentros interculturales de futuros/as profesores/as de Alemán como Lengua Extranjera ER - TY - JOUR AB - ELDIRK methods are defined to have an Explicit Last stage in the general Butcher array of Diagonal Implicit Runge-Kutta methods, with the consequence, that no additional system of equations must be solved, compared to the embedded RK method. Two general formulations for second- and third-order ELDIRK methods have been obtained recently in Mahnken [21] with specific schemes, e.g. for the embedded implicit Euler method, the embedded trapezoidal-rule and the embedded Ellsiepen method. In the first part of this paper, we investigate some general stability characteristics of ELDIRK methods, and it will be shown that the above specific RK schemes are not A-stable. Therefore, in the second part, the above-mentioned general formulations are used for further stability investigations, with the aim to construct new second- and third-order ELDIRK methods which simultaneously are A-stable. Two numerical examples are concerned with the curing for a thermosetting material and phase-field RVE modeling for crystallinity and orientation. The numerical results confirm the theoretical results on convergence order and stability. AU - Mahnken, Rolf AU - Westermann, Hendrik ID - 52233 JF - Computational Mechanics KW - Applied Mathematics KW - Computational Mathematics KW - Computational Theory and Mathematics KW - Mechanical Engineering KW - Ocean Engineering KW - Computational Mechanics SN - 0178-7675 TI - Construction of A-stable explicit last-stage diagonal implicit Runge–Kutta (ELDIRK) methods ER - TY - JOUR AU - Uhe, Benedikt AU - Kuball, Clara-Maria AU - Merklein, Marion AU - Meschut, Gerson ID - 51116 JF - Production Engineering TI - Corrosion behaviour of self-piercing riveted joints with uncoated rivets in high nitrogen steel ER - TY - JOUR AB - Abstract Background An infection with SARS-CoV-2 can lead to a variety of symptoms and complications, which can impair athletic activity. Objective We aimed to assess the clinical symptom patterns, diagnostic findings, and the extent of impairment in sport practice in a large cohort of athletes infected with SARS-CoV-2, both initially after infection and at follow-up. Additionally, we investigated whether baseline factors that may contribute to reduced exercise tolerance at follow-up can be identified. Methods In this prospective, observational, multicenter study, we recruited German COVID elite-athletes (cEAs, n = 444) and COVID non-elite athletes (cNEAs, n = 481) who tested positive for SARS-CoV-2 by PCR (polymerase chain reaction test). Athletes from the federal squad with no evidence of SARS-CoV-2 infection served as healthy controls (EAcon, n = 501). Questionnaires were used to assess load and duration of infectious symptoms, other complaints, exercise tolerance, and duration of training interruption at baseline and at follow-up 6 months after baseline. Diagnostic tests conducted at baseline included resting and exercise electrocardiogram (ECG), echocardiography, spirometry, and blood analyses. Results Most acute and infection-related symptoms and other complaints were more prevalent in cNEA than in cEAs. Compared to cEAs, EAcon had a low symptom load. In cNEAs, female athletes had a higher prevalence of complaints such as palpitations, dizziness, chest pain, myalgia, sleeping disturbances, mood swings, and concentration problems compared to male athletes (p < 0.05). Until follow-up, leading symptoms were drop in performance, concentration problems, and dyspnea on exertion. Female athletes had significantly higher prevalence for symptoms until follow-up compared to male. Pathological findings in ECG, echocardiography, and spirometry, attributed to SARS-CoV-2 infection, were rare in infected athletes. Most athletes reported a training interruption between 2 and 4 weeks (cNEAs: 52.9%, cEAs: 52.4%), while more cNEAs (27.1%) compared to cEAs (5.1%) had a training interruption lasting more than 4 weeks (p < 0.001). At follow-up, 13.8% of cNEAs and 9.9% of cEAs (p = 0.24) reported their current exercise tolerance to be under 70% compared to pre-infection state. A persistent loss of exercise tolerance at follow-up was associated with persistent complaints at baseline, female sex, a longer break in training, and age > 38 years. Periodical dichotomization of the data set showed a higher prevalence of infectious symptoms such as cough, sore throat, and coryza in the second phase of the pandemic, while a number of neuropsychiatric symptoms as well as dyspnea on exertion were less frequent in this period. Conclusions Compared to recreational athletes, elite athletes seem to be at lower risk of being or remaining symptomatic after SARS-CoV-2 infection. It remains to be determined whether persistent complaints after SARS-CoV-2 infection without evidence of accompanying organ damage may have a negative impact on further health and career in athletes. Identifying risk factors for an extended recovery period such as female sex and ongoing neuropsychological symptoms could help to identify athletes, who may require a more cautious approach to rebuilding their training regimen. Trial Registration Number DRKS00023717; 06.15.2021—retrospectively registered. AU - Widmann, Manuel AU - Gaidai, Roman AU - Schubert, Isabel AU - Grummt, Maximilian AU - Bensen, Lieselotte AU - Kerling, Arno AU - Quermann, Anne AU - Zacher, Jonas AU - Vollrath, Shirin AU - Bizjak, Daniel Alexander AU - Beckendorf, Claudia AU - Egger, Florian AU - Hasler, Erik AU - Mellwig, Klaus-Peter AU - Fütterer, Cornelia AU - Wimbauer, Fritz AU - Vogel, Azin AU - Schoenfeld, Julia AU - Wüstenfeld, Jan C. AU - Kastner, Tom AU - Barsch, Friedrich AU - Friedmann-Bette, Birgit AU - Bloch, Wilhelm AU - Meyer, Tim AU - Mayer, Frank AU - Wolfarth, Bernd AU - Roecker, Kai AU - Reinsberger, Claus AU - Haller, Bernhard AU - Niess, Andreas M. AU - Birnbaum, Mike Peter AU - Burgstahler, Christof AU - Cassel, Michael AU - Deibert, Peter AU - Esefeld, Katrin AU - Erz, Gunnar AU - Greiss, Franziska AU - Halle, Martin AU - Hesse, Judith AU - Keller, Karsten AU - Kopp, Christine AU - Matits, Lynn AU - Predel, Hans Georg AU - Rüdrich, Peter AU - Schneider, Gerald AU - Stapmanns, Philipp AU - Steinacker, Jürgen Michael AU - Szekessy, Sarah AU - Venhorst, Andreas AU - Zapf, Stephanie AU - Zickwolf, Christian ID - 50798 JF - Sports Medicine KW - Physical Therapy KW - Sports Therapy and Rehabilitation KW - Orthopedics and Sports Medicine SN - 0112-1642 TI - COVID-19 in Female and Male Athletes: Symptoms, Clinical Findings, Outcome, and Prolonged Exercise Intolerance—A Prospective, Observational, Multicenter Cohort Study (CoSmo-S) ER - TY - GEN AU - Ustimova, Magdalina AU - Sadeghi-Kohan, Somayeh AU - Hellebrand, Sybille ID - 51799 TI - Crosstalk-Aware Simulation of Interconnects Using Artificial Neural Networks ER - TY - CHAP AU - Eke, Norbert Otto ED - Egidi, Margreth ED - Peters , Ludmila ED - Schmidt, Jochen ID - 50983 T2 - (Un)verfügbar – Kulturen des Heiligen TI - Das Heilige – Versuch einer Definition ER - TY - JOUR AU - Herdramm, Henrike ID - 52652 JF - BloKK. Der Blog des Zentrums für Komparative Theologie und Kulturwissenschaften KW - Ideologiekritik KW - Tiertheologie KW - Tierethik TI - Das Potenzial von Ideologiekritik im Religionsunterricht ER - TY - CHAP AU - Vasylyeva, Tetyana AU - Ehmke, Timo AU - Gövert, Andre AU - Kassem, Amani AU - Niederhaus, Constanze ID - 52506 T2 - Mehrsprachigkeit in der Schule – Sprachbildung im und durch Sachunterricht TI - DaZ-Kompetenzen angehender Lehrkräfte des Faches Sachunterricht sowie der aus dem Sachunterricht hervorgehenden Fächer ER - TY - JOUR AU - Riese, Julia AU - Fasel, Henrik AU - Pannok, Maik AU - Lier, Stefan ID - 52388 JF - Sustainable Production and Consumption KW - Industrial and Manufacturing Engineering KW - Renewable Energy KW - Sustainability and the Environment KW - Environmental Chemistry KW - Environmental Engineering SN - 2352-5509 TI - Decentralized production concepts for bio-based polymers - implications for supply chains, costs, and the carbon footprint ER - TY - JOUR AU - Arends, Christian AU - Wolf, Lasse Lennart AU - Meinecke, Jasmin AU - Barkhofen, Sonja AU - Weich, Tobias AU - Bartley, Tim ID - 52876 IS - 1 JF - Physical Review Research KW - General Physics and Astronomy SN - 2643-1564 TI - Decomposing large unitaries into multimode devices of arbitrary size VL - 6 ER - TY - GEN AU - Dechert, Christopher AU - Kenig, Eugeny ID - 52573 TI - Der Einfluss von Mikrostrukturen auf die Flüssigkeitsausbreitung in strukturierten Packungen ER - TY - CHAP AU - Dahmen, Stephan ED - Schär, Clarissa ED - Heite, Catrin ED - Magyar-Haas, Veronika ID - 50142 T2 - Responsibilisierung TI - Der Imperativ der Biographisierung und die Ambivalenzen individueller Verantwortungszuschreibung ER - TY - JOUR AB - Miller's rule is an empirical relation between the nonlinear and linear optical coefficients that applies to a large class of materials but has only been rigorously derived for the classical Lorentz model with a weak anharmonic perturbation. In this work, we extend the proof and present a detailed derivation of Miller's rule for an equivalent quantum-mechanical anharmonic oscillator. For this purpose, the classical concept of velocity-dependent damping inherent to the Lorentz model is replaced by an adiabatic switch-on of the external electric field, which allows a unified treatment of the classical and quantum-mechanical systems using identical potentials and fields. Although the dynamics of the resulting charge oscillations, and hence the induced polarizations, deviate due to the finite zero-point motion in the quantum-mechanical framework, we find that Miller's rule is nevertheless identical in both cases up to terms of first order in the anharmonicity. With a view to practical applications, especially in the context of ab initio calculations for the optical response where adiabatically switched-on fields are widely assumed, we demonstrate that a correct treatment of finite broadening parameters is essential to avoid spurious errors that may falsely suggest a violation of Miller's rule, and we illustrate this point by means of a numerical example. AU - Meyer, Maximilian Tim AU - Schindlmayr, Arno ID - 52723 JF - Journal of Physics B: Atomic, Molecular and Optical Physics SN - 0953-4075 TI - Derivation of Miller's rule for the nonlinear optical susceptibility of a quantum anharmonic oscillator ER - TY - CHAP AU - Niemann, Jan AU - Raneck-Kuhlmann, A. AU - Eickelmann, Birgit AU - Drossel, Kerstin AU - Buhl, Heike M. ED - Herzig, B. ED - Eickelmann, Birgit ED - Schwabl, F. ED - Schulze, J. ED - Niemann, Jan ID - 51127 T2 - Lehrkräftebildung in der digitalen Welt – zukunftsorientierte Forschungs- und Praxisperspektiven TI - Determinanten und Typen phasenübergreifenden Transfers in Communities of Practice der Lehrkräftebildung ER - TY - JOUR AB - In applications of piezoelectric actuators and sensors, the dependability and particularly the reliability throughout their lifetime are vital to manufacturers and end-users and are enabled through condition-monitoring approaches. Existing approaches often utilize impedance measurements over a range of frequencies or velocity measurements and require additional equipment or sensors, such as a laser Doppler vibrometer. Furthermore, the non-negligible effects of varying operating conditions are often unconsidered. To minimize the need for additional sensors while maintaining the dependability of piezoelectric bending actuators irrespective of varying operating conditions, an online diagnostics approach is proposed. To this end, time- and frequency-domain features are extracted from monitored current signals to reflect hairline crack development in bending actuators. For validation of applicability, the presented analysis method was evaluated on piezoelectric bending actuators subjected to accelerated lifetime tests at varying voltage amplitudes and under external damping conditions. In the presence of a crack and due to a diminished stiffness, the resonance frequency decreases and the root-mean-square amplitude of the current signal simultaneously abruptly drops during the lifetime tests. Furthermore, the piezoelectric crack surfaces clapping is reflected in higher harmonics of the current signal. Thus, time-domain features and harmonics of the current signals are sufficient to diagnose hairline cracks in the actuators. AU - Aimiyekagbon, Osarenren Kennedy AU - Bender, Amelie AU - Hemsel, Tobias AU - Sextro, Walter ID - 51518 IS - 3 JF - Electronics KW - piezoelectric transducer KW - self-sensing KW - fault detection KW - diagnostics KW - hairline crack KW - condition monitoring SN - 2079-9292 TI - Diagnostics of Piezoelectric Bending Actuators Subjected to Varying Operating Conditions VL - 13 ER - TY - CHAP AU - Ficara, Elena ED - Rutledge, Jonathan ID - 46201 SN - 9781032321097 T2 - Paradox and Contradiction in Theology TI - Dialectical Jesus ER - TY - CHAP AU - Ficara, Elena ED - Schäfer, Gregor ID - 46202 T2 - Hegel's Logic and Politics TI - Dialectics Between Logic and Politics ER - TY - JOUR AU - Göddertz, Nina ID - 48081 JF - Zeitschrift für Pädagogikunterricht TI - Didaktik der Sozialpädagogik – Entwicklungslinien, Diskurse und Herausforderungen. ER - TY - JOUR AU - Schön, Lena AU - Graßl, Benjamin AU - Giese, Henning ID - 49868 JF - Steuer und Wirtschaft TI - Die Kriterien und Zusammensetzung der EU-Blacklist als Grundlage des Steueroasen-Abwehrgesetzes – Eine kritische Würdigung ER - TY - CHAP AU - Peckhaus, Volker ED - Remenyi, Maria ED - Remmert, Volker ED - Schappacher , Norbert ID - 44861 T2 - Geschichte der Tagungen am MFO, 1944 bis 1960er Jahre TI - Die Neuformierung der Mathematischen Logik im Nachkriegsdeutschland ER -