@article{51737, author = {{Kullmer, Gunter and Weiß, Deborah and Schramm, Britta}}, issn = {{0013-7944}}, journal = {{Engineering Fracture Mechanics}}, keywords = {{Mechanical Engineering, Mechanics of Materials, General Materials Science}}, publisher = {{Elsevier BV}}, title = {{{An alternative and robust formulation of the fatigue crack growth rate curve for long cracks}}}, doi = {{10.1016/j.engfracmech.2023.109826}}, volume = {{296}}, year = {{2024}}, } @article{50719, abstract = {{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.}}, author = {{Fritz, Marlon and Gries, Thomas and Wiechers, Lukas}}, issn = {{1469-7688}}, journal = {{Quantitative Finance}}, keywords = {{General Economics, Econometrics and Finance, Finance}}, pages = {{1--14}}, publisher = {{Informa UK Limited}}, title = {{{An early indicator for anomalous stock market performance}}}, doi = {{10.1080/14697688.2023.2281529}}, year = {{2024}}, } @inproceedings{50287, author = {{Kruse, Stephan and Schwabe, Tobias and Kneuper, Pascal and Kurz, Heiko G. and Meinecke, March-Michael and Scheytt, Christoph}}, booktitle = {{German Microwave Conference (GeMiC) }}, title = {{{Analysis and Simulation of a Photonic Multiband FMCW Radar Sensor System using Nyquist Pulses}}}, year = {{2024}}, } @article{52738, abstract = {{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.}}, author = {{Milaege, Dennis and Eschemann, Niklas and Hoyer, Kay-Peter and Schaper, Mirko}}, issn = {{2073-4352}}, journal = {{Crystals}}, keywords = {{Inorganic Chemistry, Condensed Matter Physics, General Materials Science, General Chemical Engineering}}, number = {{2}}, publisher = {{MDPI AG}}, title = {{{Anisotropic Mechanical and Microstructural Properties of a Ti-6Al-7Nb Alloy for Biomedical Applications Manufactured via Laser Powder Bed Fusion}}}, doi = {{10.3390/cryst14020117}}, volume = {{14}}, year = {{2024}}, } @inproceedings{52841, abstract = {{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.}}, author = {{Büttner, Marius and Habernal, Ivan}}, booktitle = {{Proceedings of the 18th Conference of the European Chapter of the Association for Computational Linguistics (Volume 1: Long Papers)}}, editor = {{Graham, Yvette and Purver, Matthew}}, pages = {{2015–2027}}, publisher = {{Association for Computational Linguistics}}, title = {{{Answering legal questions from laymen in German civil law system}}}, year = {{2024}}, } @article{50985, author = {{Eke, Norbert Otto}}, journal = {{Studia theodisca 31 }}, pages = {{1--19}}, title = {{{Artaud ± Brecht Peter Weiss’ Theater-Revolution (Marat/Sade)}}}, year = {{2024}}, } @article{50740, author = {{Weber, Katharina S. and Schlesinger, Sabrina and Lang, Alexander and Straßburger, Klaus and Maalmi, Haifa and Zhu, Anna and Zaharia, Oana-Patricia and Strom, Alexander and Bönhof, Gidon J. and Goletzke, Janina and Trenkamp, Sandra and Wagner, Robert and Buyken, Anette and Lieb, Wolfgang and Roden, Michael and Herder, Christian and Roden, M. and Al-Hasani, H. and Belgardt, B. and Lammert, E. and Bönhof, G. and Geerling, G. and Herder, C. and Icks, A. and Jandeleit-Dahm, K. and Kotzka, J. and Kuß, O. and Rathmann, W. and Schlesinger, S. and Schrauwen-Hinderling, V. and Szendroedi, J. and Trenkamp, S. and Wagner, R.}}, issn = {{0939-4753}}, journal = {{Nutrition, Metabolism and Cardiovascular Diseases}}, keywords = {{Cardiology and Cardiovascular Medicine, Nutrition and Dietetics, Endocrinology, Diabetes and Metabolism, Medicine (miscellaneous)}}, publisher = {{Elsevier BV}}, title = {{{Association of dietary patterns with diabetes-related comorbidities varies among diabetes endotypes}}}, doi = {{10.1016/j.numecd.2023.12.026}}, year = {{2024}}, } @misc{51301, author = {{Schmidt, Rebecca}}, booktitle = {{SozMethode}}, title = {{{Automatische Transkriptionssoftware – ein Erfahrungsbericht. }}}, year = {{2024}}, } @article{49772, author = {{Huybrechts, Yves and Karaca, Resul}}, issn = {{1866-5268}}, journal = {{Synergies Pays germanophones}}, pages = {{119--131}}, publisher = {{GERFLINT}}, title = {{{BelgienNet – une plateforme pour l’accès aux langues et cultures de la Belgique}}}, volume = {{16}}, year = {{2024}}, } @article{53072, abstract = {{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.}}, author = {{Banh, Ngoc Chi and Tünnermann, Jan and Rohlfing, Katharina J. and Scharlau, Ingrid}}, journal = {{Attention, Perception, & Psychophysics}}, title = {{{Benefiting from Binary Negations? Verbal Negations Decrease Visual Attention and Balance Its Distribution}}}, year = {{2024}}, } @article{53073, abstract = {{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.}}, author = {{Muschalik, Maximilian and Fumagalli, Fabian and Hammer, Barbara and Huellermeier, Eyke}}, issn = {{2374-3468}}, journal = {{Proceedings of the AAAI Conference on Artificial Intelligence}}, keywords = {{Explainable Artificial Intelligence}}, number = {{13}}, pages = {{14388--14396}}, publisher = {{Association for the Advancement of Artificial Intelligence (AAAI)}}, title = {{{Beyond TreeSHAP: Efficient Computation of Any-Order Shapley Interactions for Tree Ensembles}}}, doi = {{10.1609/aaai.v38i13.29352}}, volume = {{38}}, year = {{2024}}, } @unpublished{50406, abstract = {{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.}}, author = {{Gharibian, Sevag and Kamminga, Jonas}}, booktitle = {{arXiv:2401.03943}}, title = {{{BQP, meet NP: Search-to-decision reductions and approximate counting}}}, year = {{2024}}, } @inproceedings{52212, author = {{Tews, Karina and Teutenberg, Dominik and Meschut, Gerson and Buczek, Moritz and Duffe, Tobias and Kullmer, Gunter}}, booktitle = {{24. Kolloquium: Gemeinsame Forschung in der Klebtechnik}}, location = {{Köln}}, title = {{{Bruchmechanisches Schnittebenenkonzept zur lebensdauergerechten Auslegung von hyperelastischen Klebverbindungen bei multiaxialen und variablen Belastungsamplituden}}}, year = {{2024}}, } @inproceedings{49364, author = {{Scholtysik, Michel and Rohde, Malte and Koldewey, Christian and Dumitrescu, Roman}}, title = {{{Business strategy taxonomy and solution patterns for the circular economy}}}, year = {{2024}}, } @article{51221, abstract = {{Charge transfer mechanism in the deprotonation-induced n-type doping of PCBM.}}, author = {{Dong, Chuan-Ding and Bauch, Fabian and Hu, Yuanyuan and Schumacher, Stefan}}, issn = {{1463-9076}}, journal = {{Physical Chemistry Chemical Physics}}, keywords = {{Physical and Theoretical Chemistry, General Physics and Astronomy}}, number = {{5}}, pages = {{4194--4199}}, publisher = {{Royal Society of Chemistry (RSC)}}, title = {{{Charge transfer in superbase n-type doping of PCBM induced by deprotonation}}}, doi = {{10.1039/d3cp05105f}}, volume = {{26}}, year = {{2024}}, } @inbook{51098, author = {{Labusch, Amelie and Eickelmann, Birgit and Casamassima, Gianna and Drossel, Kerstin and Gudmundsdottir, G.B. and Kazani, A. and Mifsud, L. and Symeonaki, M. and Teidla-Kunitsõn, G.}}, booktitle = {{Understanding the everyday digital lives of children and young people }}, editor = {{Holmarsdottir, H.B. and Seland, I. and Hyggen, C. and Roth, M.}}, pages = {{321--350}}, publisher = {{Palgrave Macmillan}}, title = {{{Children and young people’s ICT experiences in school education: Participatory research design to engage children and young people as experts in research}}}, doi = {{https://doi.org/10.1007/978-3-031-46929-9}}, year = {{2024}}, } @misc{51624, author = {{Staffel, Florian Lukas}}, booktitle = {{Sehepunkte}}, number = {{2}}, title = {{{Christian Marx: Wegbereiter der Globalisierung. Multinationale Unternehmen der westeuropäischen Chemieindustrie in der Zeit nach dem Boom (1960er-2000er Jahre) (= Nach dem Boom), Göttingen 2023.}}}, volume = {{24}}, year = {{2024}}, } @inproceedings{49363, author = {{Scholtysik, Michel and Rohde, Malte and Koldewey, Christian and Dumitrescu, Roman}}, title = {{{Circular Product-Service-System Ideation Canvas – A Framework for the Design of circular Product-Service-System Ideas}}}, year = {{2024}}, } @article{52332, author = {{Intveen, Julie}}, journal = {{MEIN FACH - Englisch Sek II}}, title = {{{Commonwealth Connections. Discovering global dynamics through Model UN discourse}}}, volume = {{1}}, year = {{2024}}, } @article{49652, abstract = {{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.}}, author = {{Hempel, Franz and Vernuccio, Federico and König, Lukas and Buschbeck, Robin and Rüsing, Michael and Cerullo, Giulio and Polli, Dario and Eng, Lukas M.}}, issn = {{1559-128X}}, journal = {{Applied Optics}}, keywords = {{Atomic and Molecular Physics, and Optics, Engineering (miscellaneous), Electrical and Electronic Engineering}}, number = {{1}}, publisher = {{Optica Publishing Group}}, title = {{{Comparing transmission- and epi-BCARS: a round robin on solid-state materials}}}, doi = {{10.1364/ao.505374}}, volume = {{63}}, year = {{2024}}, }