@book{42949, author = {{Fuchs, Christian}}, isbn = {{9781032362724}}, publisher = {{Routledge}}, title = {{{Digital Democracy and the Digital Public Sphere}}}, volume = {{6}}, year = {{2023}}, } @unpublished{40982, abstract = {{Effective photoinduced charge transfer makes molecular bimetallic assemblies attractive for applications as active light induced proton reduction systems. For a more sustainable future, development of competitive base metal dyads is mandatory. However, the electron transfer mechanisms from the photosensitizer to the proton reduction catalyst in base metal dyads remain so far unexplored. We study a Fe-Co dyad that exhibits photocatalytic H2 production activity using femtosecond X-ray emission spectroscopy, complemented by ultrafast optical spectroscopy and theoretical time-dependent DFT calculations, to understand the electronic and structural dynamics after photoexcitation and during the subsequent charge transfer process from the FeII photosensitizer to the cobaloxime catalyst. Using this novel approach, the simultaneous measurement of the transient Kalpha X-ray emission at the iron and cobalt K-edges in a two-colour experiment is enabled making it possible to correlate the excited state dynamics to the electron transfer processes. The methodology, therefore, provides a clear and direct spectroscopic evidence of the Fe->Co electron transfer responsible for the proton reduction activity.}}, author = {{Nowakowski, Michał and Huber-Gedert, Marina and Elgabarty, Hossam and Kubicki, Jacek and Kertem, Ahmet and Lindner, Natalia and Khakhulin, Dimitry and Lima, Frederico Alves and Choi, Tae-Kyu and Biednov, Mykola and Piergies, Natalia and Zalden, Peter and Kubicek, Katerina and Rodriguez-Fernandez, Angel and Salem, Mohammad Alaraby and Kühne, Thomas and Gawelda, Wojciech and Bauer, Matthias}}, booktitle = {{arxiv}}, title = {{{Ultrafast two-colour X-ray emission spectroscopy reveals excited state landscape in a base metal dyad}}}, year = {{2023}}, } @inproceedings{42163, abstract = {{The article shows how to learn models of dynamical systems from data which are governed by an unknown variational PDE. Rather than employing reduction techniques, we learn a discrete field theory governed by a discrete Lagrangian density $L_d$ that is modelled as a neural network. Careful regularisation of the loss function for training $L_d$ is necessary to obtain a field theory that is suitable for numerical computations: we derive a regularisation term which optimises the solvability of the discrete Euler--Lagrange equations. Secondly, we develop a method to find solutions to machine learned discrete field theories which constitute travelling waves of the underlying continuous PDE.}}, author = {{Offen, Christian and Ober-Blöbaum, Sina}}, booktitle = {{Geometric Science of Information}}, editor = {{Nielsen, F and Barbaresco, F}}, keywords = {{System identification, discrete Lagrangians, travelling waves}}, location = {{Saint-Malo, Palais du Grand Large, France}}, pages = {{569--579}}, publisher = {{Springer, Cham.}}, title = {{{Learning discrete Lagrangians for variational PDEs from data and detection of travelling waves}}}, doi = {{10.1007/978-3-031-38271-0_57}}, volume = {{14071}}, year = {{2023}}, } @article{29240, abstract = {{The principle of least action is one of the most fundamental physical principle. It says that among all possible motions connecting two points in a phase space, the system will exhibit those motions which extremise an action functional. Many qualitative features of dynamical systems, such as the presence of conservation laws and energy balance equations, are related to the existence of an action functional. Incorporating variational structure into learning algorithms for dynamical systems is, therefore, crucial in order to make sure that the learned model shares important features with the exact physical system. In this paper we show how to incorporate variational principles into trajectory predictions of learned dynamical systems. The novelty of this work is that (1) our technique relies only on discrete position data of observed trajectories. Velocities or conjugate momenta do not need to be observed or approximated and no prior knowledge about the form of the variational principle is assumed. Instead, they are recovered using backward error analysis. (2) Moreover, our technique compensates discretisation errors when trajectories are computed from the learned system. This is important when moderate to large step-sizes are used and high accuracy is required. For this, we introduce and rigorously analyse the concept of inverse modified Lagrangians by developing an inverse version of variational backward error analysis. (3) Finally, we introduce a method to perform system identification from position observations only, based on variational backward error analysis.}}, author = {{Ober-Blöbaum, Sina and Offen, Christian}}, issn = {{0377-0427}}, journal = {{Journal of Computational and Applied Mathematics}}, keywords = {{Lagrangian learning, variational backward error analysis, modified Lagrangian, variational integrators, physics informed learning}}, pages = {{114780}}, publisher = {{Elsevier}}, title = {{{Variational Learning of Euler–Lagrange Dynamics from Data}}}, doi = {{10.1016/j.cam.2022.114780}}, volume = {{421}}, year = {{2023}}, } @article{29236, abstract = {{The numerical solution of an ordinary differential equation can be interpreted as the exact solution of a nearby modified equation. Investigating the behaviour of numerical solutions by analysing the modified equation is known as backward error analysis. If the original and modified equation share structural properties, then the exact and approximate solution share geometric features such as the existence of conserved quantities. Conjugate symplectic methods preserve a modified symplectic form and a modified Hamiltonian when applied to a Hamiltonian system. We show how a blended version of variational and symplectic techniques can be used to compute modified symplectic and Hamiltonian structures. In contrast to other approaches, our backward error analysis method does not rely on an ansatz but computes the structures systematically, provided that a variational formulation of the method is known. The technique is illustrated on the example of symmetric linear multistep methods with matrix coefficients.}}, author = {{McLachlan, Robert and Offen, Christian}}, journal = {{Journal of Geometric Mechanics}}, keywords = {{variational integrators, backward error analysis, Euler--Lagrange equations, multistep methods, conjugate symplectic methods}}, number = {{1}}, pages = {{98--115}}, publisher = {{AIMS Press}}, title = {{{Backward error analysis for conjugate symplectic methods}}}, doi = {{10.3934/jgm.2023005}}, volume = {{15}}, year = {{2023}}, } @article{37654, abstract = {{Recently, Hamiltonian neural networks (HNN) have been introduced to incorporate prior physical knowledge when learning the dynamical equations of Hamiltonian systems. Hereby, the symplectic system structure is preserved despite the data-driven modeling approach. However, preserving symmetries requires additional attention. In this research, we enhance the HNN with a Lie algebra framework to detect and embed symmetries in the neural network. This approach allows to simultaneously learn the symmetry group action and the total energy of the system. As illustrating examples, a pendulum on a cart and a two-body problem from astrodynamics are considered.}}, author = {{Dierkes, Eva and Offen, Christian and Ober-Blöbaum, Sina and Flaßkamp, Kathrin}}, issn = {{1054-1500}}, journal = {{Chaos}}, number = {{6}}, publisher = {{AIP Publishing}}, title = {{{Hamiltonian Neural Networks with Automatic Symmetry Detection}}}, doi = {{10.1063/5.0142969}}, volume = {{33}}, year = {{2023}}, } @inbook{46473, author = {{Dehmel, Lukas}}, booktitle = {{Grundlagen der Erwachsenen- und Weiterbildungsforschung}}, editor = {{Kondratjuk, Maria}}, pages = {{125--127}}, publisher = {{utb}}, title = {{{6.3.2 Medienpädagogische Professionalisierung in der beruflichen Weiterbildung. Eine Studie aus Perspektive der biografischen Medienforschung. Steckbrief zur Dissertation.}}}, year = {{2023}}, } @article{46471, author = {{Unterstell, Rembert}}, journal = {{german research – Magazine of the Deutsche Forschungsgemeinschaft}}, number = {{1}}, pages = {{8--11}}, title = {{{„Allowing the Economy to Breathe Even During the Crisis“ – Interview with Tax Expert Caren Sureth-Sloane}}}, year = {{2023}}, } @proceedings{46474, editor = {{Ade, Larissa and Breiwe, René and Dehmel, Lukas and Wolf, Karsten D. and Rummler, Klaus and Dander, Valentin and Grünberger, Nina and Schiefner-Rohs, Mandy}}, number = {{53}}, title = {{{ENT | GRENZ | UNGEN in der Medienpädagogik. Perspektiven im Anschluss an den 28. Kongress der DGfE}}}, doi = {{doi.org/10.21240/mpaed/53.X}}, year = {{2023}}, } @article{46472, author = {{Dehmel, Lukas and Meister, Dorothee and Gerhardts, Lara}}, journal = {{Zeitschrift MedienPädagogik}}, number = {{53}}, pages = {{55--75}}, title = {{{Die Entgrenzung von Kommunikationskulturen in Lehrpersonenkollegien. Reflexion einer unbeabsichtigten Begleiterscheinung der Arbeit mit Tablets.}}}, doi = {{https://doi.org/10.21240/mpaed/53/2023.06.12.X }}, year = {{2023}}, } @inbook{46475, abstract = {{Dieser Beitrag bietet verschiedene professionelle Perspektiven auf den popmusikalischen Kommunikationsprozesses innerhalb postdigitaler Popmusikjournalismuskulturen. Neben einer wissenschaftlichen Rahmung, Übersicht und Strukturierung des Untersuchungsfelds und des Forschungsstands versammelt der Beitrag multiperspektivische Thesen, die journalistische Praktiken und ihre Reflexionen von Produktion über Distribution und Rezeption/Nutzung bis zur Weiterverarbeitung inklusive Archivierung/Institutionalisierung/Musealisierung aufgreifen und herausstellen. Die aufgestellten Thesen gelten als Aufschlag für die zukünftige Analyse des so fundamentalen und doch auch immer wieder übersehenen Berufsfeldes und seiner Rezeption zwischen Faszination und Exploitation.}}, author = {{Godlewsky, Tanja and Jacke, Christoph and Roenneke, Stefanie and Venker, Thomas}}, booktitle = {{Musik und Internet. Aktuelle Phänomene populärer Kulturen}}, editor = {{Moormann, Peter and Ruth, Nicolas}}, isbn = {{9783658391447}}, issn = {{2626-6199}}, publisher = {{Springer Fachmedien Wiesbaden}}, title = {{{Pop(musik)journalismen zwischen Printmagazin-Krise und postdigitaler Realität – Forschungsüberblick und multiperspektivische Thesen}}}, doi = {{10.1007/978-3-658-39145-4_11}}, year = {{2023}}, } @inproceedings{46476, abstract = {{Abstract. Increasing resource efficiency is a major challenge and affects almost every aspect of social and economic life. The mobility sector in particular is responsible for a large share of primary energy consumption and is increasingly in the focus of public interest. One possibility to adress these challenges is to reduce the vehicle weight by means of lightweight construction technologies such as multi-material systems. These assemblies consist of workpieces with different mechanical and geometrical properties, which poses a major challenge for joining technology. Mechanical joining processes such as semi-tubular self-piercing riveting are often used in the production of these assemblies, but due to their process characteristics, they are rigid and can only react to changing process variables to a limited extent. One way to increase the versatility of self-piercing riveting is to superimpose a tumbling kinematics on the punch. During tumbling, an angular offset of the punch axis to the tool axis is set and the contact area between punch and workpiece is reduced. In this work, investigations were carried out to determine how the tumbling strategy, consisting of the parameters tumbling angle, tumbling onset and tumbling kinematics, affects the material flow of the rivet element. For this purpose, experimental tests are conducted with the typical materials of conventional multi-material systems and the geometric joint formations are determined by means of macrographs. }}, author = {{Wituschek, S. and Elbel, L. and Lechner, M.}}, booktitle = {{Materials Research Proceedings}}, issn = {{2474-395X}}, publisher = {{Materials Research Forum LLC}}, title = {{{Versatile self-piercing riveting with a tumbling superimposed punch}}}, doi = {{10.21741/9781644902479-122}}, year = {{2023}}, } @article{46468, author = {{Lange, Nina Amelie and Schapeler, Timon and Höpker, Jan Philipp and Protte, Maximilian and Bartley, Tim}}, issn = {{2469-9926}}, journal = {{Physical Review A}}, number = {{2}}, publisher = {{American Physical Society (APS)}}, title = {{{Degenerate photons from a cryogenic spontaneous parametric down-conversion source}}}, doi = {{10.1103/physreva.108.023701}}, volume = {{108}}, year = {{2023}}, } @article{46478, author = {{Bartelheimer, Christian and zur Heiden, Philipp and Berendes, Carsten Ingo and Beverungen, Daniel}}, issn = {{0960-085X}}, journal = {{European Journal of Information Systems}}, keywords = {{Library and Information Sciences, Information Systems}}, pages = {{1--34}}, publisher = {{Informa UK Limited}}, title = {{{Designing digital actor engagement platforms for local high streets: an action design research study}}}, doi = {{10.1080/0960085x.2023.2242847}}, year = {{2023}}, } @phdthesis{46482, abstract = {{Ever increasing demands on the performance of microchips are leading to ever more complex semiconductor technologies with ever shrinking feature sizes. Complex applications with high demands on safety and reliability, such as autonomous driving, are simultaneously driving the requirements for test and diagnosis of VLSI circuits. Throughout the life cycle of a microchip, uncertainties occur that affect its timing behavior. For example, weak circuit structures, aging effects, or process variations can lead to a change in the timing behavior of the circuit. While these uncertainties do not necessarily lead to a change of the functional behavior, they can lead to a reliability problem. With modular and hybrid compaction two test instruments are presented in this work that can be used for X-tolerant test response compaction in the built-in Faster-than-At-Speed Test (FAST) which is used to detect uncertainties in VLSI circuits. One challenge for test response compaction during FAST is the high and varying X-rate at the outputs of the circuit under test. By dividing the circuit outputs into test groups and separately compacting these test groups using stochastic compactors, the modular compaction is able to handle these high and varying X-rates. To deal with uncertainties on logic interconnects, a method for distinguishing crosstalk and process variation is presented. In current semiconductor technologies, the number of parasitic coupling capacitances between logic interconnects is growing. These coupling capacitances can lead to crosstalk, which causes increased current flow in the logic interconnects, which in turn can lead to increased electromigration. In the presented method, delay maps describing the timing behavior of the circuit outputs at different operating points are used to train artificial neural networks which classify the tested circuits into fault-free and faulty.}}, author = {{Sprenger, Alexander}}, keywords = {{Testantwortkompaktierung, Prozessvariation, Silicon Lifecycle Management}}, pages = {{xi, 160}}, publisher = {{Universität Paderborn}}, title = {{{Testinstrumente und Testdatenanalyse zur Verarbeitung von Unsicherheiten in Logikblöcken hochintegrierter Schaltungen}}}, doi = {{10.17619/UNIPB/1-1787}}, year = {{2023}}, } @inproceedings{46485, abstract = {{We present a miniaturized pulse shaping device that creates an arbitrary dispersion through the interaction of multiple metasurfaces on less than 2 mm3 volume. For this, a metalens and a grating-metasurface between two silver mirrors are fabricated. The grating contains further phase information to achieve the device's pulse shaping functionality.}}, author = {{Geromel, René and Georgi, Philip and Protte, Maximilian and Bartley, Tim and Huang, Lingling and Zentgraf, Thomas}}, booktitle = {{CLEO: Fundamental Science 2023}}, location = {{San Jose, USA}}, publisher = {{Optica Publishing Group}}, title = {{{Dispersion control with integrated plasmonic metasurfaces}}}, doi = {{10.1364/cleo_fs.2023.fth4d.3}}, year = {{2023}}, } @article{44851, abstract = {{We present the fabrication of strain-free quantum dots in the In0.53Ga0.47As/In0.52Al0.48As-system lattice matched to InP, as future sources for single and entangled photons for long-haul fiber-based quantum communication in the optical C-band. We achieved these quantum dots by local droplet etching via InAl droplets in an In0.52Al0.48As layer and subsequent filling of the holes with In0.53Ga0.47As. Here, we present detailed investigations of the hole morphologies measured by atomic force microscopy. Statistical analysis of a set of nanoholes reveals a high degree of symmetry for nearly half of them when etched at optimized temperatures. Overgrowth with 50–150 nm In0.52Al0.48As increases their diameter and elongates the holes along the [01̄1]-direction. By systematically scanning the parameter space, we were able to fill the holes with In0.53Ga0.47As, and by capping the filled holes and performing photoluminescence measurements, we observe photoluminescence emission in the O-band up into the C-band depending on the filling height of the nanoholes.}}, author = {{Deutsch, D. and Buchholz, C. and Zolatanosha, V. and Jöns, K. D. and Reuter, D.}}, issn = {{2158-3226}}, journal = {{AIP Advances}}, keywords = {{General Physics and Astronomy}}, number = {{5}}, publisher = {{AIP Publishing}}, title = {{{Telecom C-band photon emission from (In,Ga)As quantum dots generated by filling nanoholes in In0.52Al0.48As layers}}}, doi = {{10.1063/5.0147281}}, volume = {{13}}, year = {{2023}}, } @article{46480, author = {{Müller, Hendrik and Weinberger, Christian and Grundmeier, Guido and de los Arcos de Pedro, Maria Teresa}}, issn = {{0368-2048}}, journal = {{Journal of Electron Spectroscopy and Related Phenomena}}, keywords = {{Physical and Theoretical Chemistry, Spectroscopy, Condensed Matter Physics, Atomic and Molecular Physics, and Optics, Radiation, Electronic, Optical and Magnetic Materials}}, publisher = {{Elsevier BV}}, title = {{{UV-enhanced environmental charge compensation in near ambient pressure XPS}}}, doi = {{10.1016/j.elspec.2023.147317}}, volume = {{264}}, year = {{2023}}, } @article{46486, author = {{Pfeifer, Florian and Knorr, Lukas and Schlosser, Florian and Marten, Thorsten and Tröster, Thomas}}, issn = {{1848-9257}}, journal = {{Journal of Sustainable Development of Energy, Water and Environment Systems}}, keywords = {{Energy Engineering and Power Technology, Water Science and Technology, Environmental Science (miscellaneous), Renewable Energy, Sustainability and the Environment}}, number = {{3}}, pages = {{1--20}}, publisher = {{SDEWES Centre}}, title = {{{Ecological and Economic Feasibility of Inductive Heating for Sustainable Press Hardening Processes}}}, doi = {{10.13044/j.sdewes.d11.0450}}, volume = {{11}}, year = {{2023}}, } @inproceedings{45371, author = {{Elsner, Julia and Tenberge, Claudia and Fechner, Sabine}}, booktitle = {{Lernen, Lehren und Forschen in einer digital geprägten Welt}}, editor = {{van Vorst, Helena}}, pages = {{925--928}}, title = {{{Videoanalyse des Modellierprozesses von Grundschüler*innen}}}, volume = {{43}}, year = {{2023}}, } @techreport{46491, author = {{Kundisch, Dennis}}, pages = {{12--13}}, title = {{{#DIGITALENTS - Digital Talents Programm geht in die zweite Runde}}}, volume = {{1}}, year = {{2023}}, } @article{45656, author = {{Kempkes, J. P. and Kreuzhage, K. and Kundisch, Dennis and Seutter, Janina and Weskamp, Christoph}}, journal = {{Kultur Management Network Magazin}}, title = {{{Digitale Transformation im Theater – Mittels Besucherforschung und Entscheidungsunterstützung zur besseren Angebotsgestaltung}}}, volume = {{172}}, year = {{2023}}, } @inproceedings{46502, author = {{Gräßler, Iris and Wiechel, Dominik}}, booktitle = {{2023 18th Annual System of Systems Engineering Conference (SoSe)}}, location = {{Lille}}, publisher = {{IEEE}}, title = {{{Customized impact analyses for technical engineering changes}}}, doi = {{10.1109/sose59841.2023.10178484}}, year = {{2023}}, } @article{46503, abstract = {{ Purpose The purpose of this study is to investigate the manufacturability of Fe-3Si lattice structures and the resulting mechanical properties. This study could lead to the successful processing of squirrel cage conductors (a lattice structure by design) of an induction motor by additive manufacturing in the future. Design/methodology/approach The compression behaviour of two lattice structures where struts are arranged in a face-centred cubic position and vertical edges (FCCZ), and struts are placed at body-centred cubic (BCC) positions, prepared by laser powder bed fusion (LPBF), is explored. The experimental investigations are supported by finite element method (FEM) simulations. Findings The FCCZ lattice structure presents a peak in the stress-strain curve, whereas the BCC lattice structure manifests a plateau. The vertical struts aligned along the compression direction lead to a significant increase in the load-carrying ability of FCCZ lattice structures compared to BCC lattice structures. This results in a peak in the stress-strain curve. However, the BCC lattice structure presents the bending of struts with diagonal struts carrying the major loads with struts near the faceplate receiving the least load. A high concentration of geometrically necessary dislocations (GNDs) near the grain boundaries along cell formation is observed in the microstructure. Originality/value To the best of the authors’ knowledge, this is the first study on additive manufacturing of Fe-3Si lattice structures. Currently, there are no investigations in the literature on the manufacturability and mechanical properties of Fe-3Si lattice structures. }}, author = {{Pramanik, Sudipta and Hoyer, Kay-Peter and Schaper, Mirko}}, issn = {{1355-2546}}, journal = {{Rapid Prototyping Journal}}, keywords = {{Industrial and Manufacturing Engineering, Mechanical Engineering}}, number = {{6}}, pages = {{1257--1269}}, publisher = {{Emerald}}, title = {{{Experimental and finite element method investigation on the compression behaviour of FCCZ and BCC lattice structures of additively manufactured Fe-3Si samples}}}, doi = {{10.1108/rpj-06-2022-0190}}, volume = {{29}}, year = {{2023}}, } @article{46507, author = {{Pramanik, Sudipta and Milaege, Dennis and Hein, Maxwell and Andreiev, Anatolii and Schaper, Mirko and Hoyer, Kay-Peter}}, issn = {{1438-1656}}, journal = {{Advanced Engineering Materials}}, keywords = {{Condensed Matter Physics, General Materials Science}}, number = {{14}}, publisher = {{Wiley}}, title = {{{An Experimental and Computational Modeling Study on Additively Manufactured Micro‐Architectured Ti–24Nb–4Zr–8Sn Hollow‐Strut Lattice Structures}}}, doi = {{10.1002/adem.202201850}}, volume = {{25}}, year = {{2023}}, } @unpublished{46504, author = {{Andreiev, Anatolii and Hoyer, Kay-Peter and Hengsbach, Florian and Haase, Michael and Schaper, Mirko}}, publisher = {{Elsevier BV}}, title = {{{Powder Bed Fusion of Soft-Magnetic Iron-Silicon-Based Alloys: Advantages and Challenges}}}, doi = {{10.2139/ssrn.4369485}}, year = {{2023}}, } @inproceedings{46514, abstract = {{Purpose: Data integration and applications across knowledge graphs (KGs) rely heavily on the discovery of links between resources within these KGs. Geospatial link discovery algorithms have to deal with millions of point sets containing billions of points. Methodology: To speed up the discovery of geospatial links, we propose COBALT. COBALT combines the content measures with R-tree indexing. The content measures are based on the area, diagonal and distance of the minimum bounding boxes of the polygons which speeds up the process but is not perfectly accurate. We thus propose two polygon splitting approaches for improving the accuracy of COBALT. Findings: Our experiments on real-world datasets show that COBALT is able to speed up the topological relation discovery over geospatial KGs by up to 1.47 × 104 times over state-of-the-art linking algorithms while maintaining an F-Measure between 0.7 and 0.9 depending on the relation. Furthermore, we were able to achieve an F-Measure of up to 0.99 by applying our polygon splitting approaches before applying the content measures. Value: The process of discovering links between geospatial resources can be significantly faster by sacrificing the optimality of the results. This is especially important for real time data-driven applications such as emergency response, location-based services and traffic management. In future work, additional measures, like the location of polygons or the name of the entity represented by the polygon, could be integrated to further improve the accuracy of the results.}}, author = {{Becker, Alexander and Ahmed, Abdullah Fathi Ahmed and Sherif, Mohamed and Ngonga Ngomo, Axel-Cyrille}}, booktitle = {{SEMANTiCS}}, keywords = {{ahmed becker dice ngonga sail sherif}}, location = {{Leipzig, Germany}}, title = {{{COBALT: A Content-Based Similarity Approach for Link Discovery over Geospatial Knowledge Graphs}}}, year = {{2023}}, } @article{46517, author = {{Ahmed, Abdullah Fathi and Sherif, Mohamed Ahmed and Ngomo, Axel-Cyrille Ngonga}}, issn = {{2169-3536}}, journal = {{IEEE Access}}, keywords = {{General Engineering, General Materials Science, General Computer Science, Electrical and Electronic Engineering}}, pages = {{1--1}}, publisher = {{Institute of Electrical and Electronics Engineers (IEEE)}}, title = {{{NELLIE: Never-Ending Linking for Linked Open Data}}}, doi = {{10.1109/access.2023.3300694}}, year = {{2023}}, } @inbook{46516, abstract = {{Linked knowledge graphs build the backbone of many data-driven applications such as search engines, conversational agents and e-commerce solutions. Declarative link discovery frameworks use complex link specifications to express the conditions under which a link between two resources can be deemed to exist. However, understanding such complex link specifications is a challenging task for non-expert users of link discovery frameworks. In this paper, we address this drawback by devising NMV-LS, a language model-based verbalization approach for translating complex link specifications into natural language. NMV-LS relies on the results of rule-based link specification verbalization to apply continuous training on T5, a large language model based on the Transformerarchitecture. We evaluated NMV-LS on English and German datasets using well-known machine translation metrics such as BLUE, METEOR, ChrF++ and TER. Our results suggest that our approach achieves a verbalization performance close to that of humans and outperforms state of the art approaches. Our source code and datasets are publicly available at https://github.com/dice-group/NMV-LS.}}, author = {{Ahmed, Abdullah Fathi Ahmed and Firmansyah, Asep Fajar and Sherif, Mohamed and Moussallem, Diego and Ngonga Ngomo, Axel-Cyrille}}, booktitle = {{Natural Language Processing and Information Systems}}, isbn = {{9783031353192}}, issn = {{0302-9743}}, publisher = {{Springer Nature Switzerland}}, title = {{{Explainable Integration of Knowledge Graphs Using Large Language Models}}}, doi = {{10.1007/978-3-031-35320-8_9}}, year = {{2023}}, } @inproceedings{46522, author = {{Vogelsang, Christoph and Janzen, Thomas and Meier, Jana and Wotschel, Philipp}}, location = {{Potsdam}}, title = {{{„Die Prüfungen werden mich sicherlich nicht zu einer besseren Lehrkraft machen.“ Wie beurteilen Studierende Prüfungen und Feedback im Lehramtsstudium?}}}, year = {{2023}}, } @inproceedings{46524, author = {{Wotschel, Philipp and Vogelsang, Christoph and Janzen, Thomas and Meier, Jana}}, location = {{Potsdam}}, title = {{{Als Lehrkraft gut beraten? Entwicklung und Erprobung eines handlungsnahen Prüfungsformates zur Erfassung von Beratungskompetenz von Lehramtsstudierenden}}}, year = {{2023}}, } @inproceedings{46518, abstract = {{Purpose: This study addresses the limitations of current short abstracts of DBpedia entities, which often lack a comprehensive overview due to their creating method (i.e., selecting the first two-three sentences from the full DBpedia abstracts). Methodology: We leverage pre-trained language models to generate abstractive summaries of DBpedia abstracts in six languages (English, French, German, Italian, Spanish, and Dutch). We performed several experiments to assess the quality of generated summaries by language models. In particular, we evaluated the generated summaries using human judgments and automated metrics (Self-ROUGE and BERTScore). Additionally, we studied the correlation between human judgments and automated metrics in evaluating the generated summaries under different aspects: informativeness, coherence, conciseness, and fluency. Findings: Pre-trained language models generate summaries more concise and informative than existing short abstracts. Specifically, BART-based models effectively overcome the limitations of DBpedia short abstracts, especially for longer ones. Moreover, we show that BERTScore and ROUGE-1 are reliable metrics for assessing the informativeness and coherence of the generated summaries with respect to the full DBpedia abstracts. We also find a negative correlation between conciseness and human ratings. Furthermore, fluency evaluation remains challenging without human judgment. Value: This study has significant implications for various applications in machine learning and natural language processing that rely on DBpedia resources. By providing succinct and comprehensive summaries, our approach enhances the quality of DBpedia abstracts and contributes to the semantic web community}}, author = {{Zahera, Hamada Mohamed Abdelsamee and Vitiugin, Fedor and Sherif, Mohamed and Castillo, Carlos and Ngonga Ngomo, Axel-Cyrille}}, booktitle = {{SEMANTiCS}}, keywords = {{dice enexa kiam ngonga porque sherif zahera}}, location = {{Leipzig, Germany}}, title = {{{Using Pre-trained Language Models for Abstractive DBpedia Summarization: A Comparative Study}}}, year = {{2023}}, } @misc{45558, abstract = {{Graffiti is an urban phenomenon that is increasingly attracting the interest of the sciences. To the best of our knowledge, no suitable data corpora are available for systematic research until now. The Information System Graffiti in Germany project (Ingrid) closes this gap by dealing with graffiti image collections that have been made available to the project for public use. Within Ingrid, the graffiti images are collected, digitized and annotated. With this work, we aim to support the rapid access to a comprehensive data source on Ingrid targeted especially by researchers. In particular, we present IngridKG, an RDF knowledge graph of annotated graffiti, abides by the Linked Data and FAIR principles. We weekly update IngridKG by augmenting the new annotated graffiti to our knowledge graph. Our generation pipeline applies RDF data conversion, link discovery and data fusion approaches to the original data. The current version of IngridKG contains 460,640,154 triples and is linked to 3 other knowledge graphs by over 200,000 links. In our use case studies, we demonstrate the usefulness of our knowledge graph for different applications.}}, author = {{Sherif, Mohamed and Morim da Silva, Ana Alexandra and Pestryakova, Svetlana and Ahmed, Abdullah Fathi Ahmed and Niemann, Sven and Ngonga Ngomo, Axel-Cyrille}}, publisher = {{LibreCat University}}, title = {{{IngridKG: A FAIR Knowledge Graph of Graffiti}}}, doi = {{10.5281/ZENODO.7560242}}, year = {{2023}}, } @article{46542, abstract = {{Multiprotein adsorption from complex body fluids represents a highly important and complicated phenomenon in medicine. In this work, multiprotein adsorption from diluted human serum at gold and oxidized iron surfaces is investigated at different serum concentrations and pH values. Adsorption-induced changes in surface topography and the total amount of adsorbed proteins are quantified by atomic force microscopy (AFM) and polarization-modulation infrared reflection absorption spectroscopy (PM-IRRAS), respectively. For both surfaces, stronger protein adsorption is observed at pH 6 compared to pH 7 and pH 8. PM-IRRAS furthermore provides some qualitative insights into the pH-dependent alterations in the composition of the adsorbed multiprotein films. Changes in the amide II/amide I band area ratio and in particular side-chain IR absorption suggest that the increased adsorption at pH 6 is accompanied by a change in protein film composition. Presumably, this is mostly driven by the adsorption of human serum albumin, which at pH 6 adsorbs more readily and thereby replaces other proteins with lower surface affinities in the resulting multiprotein film.}}, author = {{Huang, Jingyuan and Qiu, Yunshu and Lücke, Felix and Su, Jiangling and Grundmeier, Guido and Keller, Adrian}}, issn = {{1420-3049}}, journal = {{Molecules}}, keywords = {{Chemistry (miscellaneous), Analytical Chemistry, Organic Chemistry, Physical and Theoretical Chemistry, Molecular Medicine, Drug Discovery, Pharmaceutical Science}}, number = {{16}}, publisher = {{MDPI AG}}, title = {{{Multiprotein Adsorption from Human Serum at Gold and Oxidized Iron Surfaces Studied by Atomic Force Microscopy and Polarization-Modulation Infrared Reflection Absorption Spectroscopy}}}, doi = {{10.3390/molecules28166060}}, volume = {{28}}, year = {{2023}}, } @article{46543, abstract = {{The influence of nanoscale surface topography on protein adsorption is highly important for numerous applications in medicine and technology. Herein, ferritin adsorption at flat and nanofaceted, single-crystalline Al2O3 surfaces is investigated using atomic force microscopy and X-ray photoelectron spectroscopy. The nanofaceted surfaces are generated by the thermal annealing of Al2O3 wafers at temperatures above 1000 °C, which leads to the formation of faceted saw-tooth-like surface topographies with periodicities of about 160 nm and amplitudes of about 15 nm. Ferritin adsorption at these nanofaceted surfaces is notably suppressed compared to the flat surface at a concentration of 10 mg/mL, which is attributed to lower adsorption affinities of the newly formed facets. Consequently, adsorption is restricted mostly to the pattern grooves, where the proteins can maximize their contact area with the surface. However, this effect depends on the protein concentration, with an inverse trend being observed at 30 mg/mL. Furthermore, different ferritin adsorption behavior is observed at topographically similar nanofacet patterns fabricated at different annealing temperatures and attributed to different step and kink densities. These results demonstrate that while protein adsorption at solid surfaces can be notably affected by nanofacet patterns, fine-tuning protein adsorption in this way requires the precise control of facet properties.}}, author = {{Pothineni, Bhanu K. and Kollmann, Sabrina and Li, Xinyang and Grundmeier, Guido and Erb, Denise J. and Keller, Adrian}}, issn = {{1422-0067}}, journal = {{International Journal of Molecular Sciences}}, keywords = {{Inorganic Chemistry, Organic Chemistry, Physical and Theoretical Chemistry, Computer Science Applications, Spectroscopy, Molecular Biology, General Medicine, Catalysis}}, number = {{16}}, publisher = {{MDPI AG}}, title = {{{Adsorption of Ferritin at Nanofaceted Al2O3 Surfaces}}}, doi = {{10.3390/ijms241612808}}, volume = {{24}}, year = {{2023}}, } @inproceedings{46459, author = {{Kouagou, N’Dah Jean and Heindorf, Stefan and Demir, Caglar and Ngomo, Axel-Cyrille Ngonga}}, booktitle = {{NeSy}}, pages = {{430–431}}, publisher = {{CEUR-WS.org}}, title = {{{Neural Class Expression Synthesis (Extended Abstract)}}}, volume = {{3432}}, year = {{2023}}, } @inbook{46572, abstract = {{Indonesian is classified as underrepresented in the Natural Language Processing (NLP) field, despite being the tenth most spoken language in the world with 198 million speakers. The paucity of datasets is recognized as the main reason for the slow advancements in NLP research for underrepresented languages. Significant attempts were made in 2020 to address this drawback for Indonesian. The Indonesian Natural Language Understanding (IndoNLU) benchmark was introduced alongside IndoBERT pre-trained language model. The second benchmark, Indonesian Language Evaluation Montage (IndoLEM), was presented in the same year. These benchmarks support several tasks, including Named Entity Recognition (NER). However, all NER datasets are in the public domain and do not contain domain-specific datasets. To alleviate this drawback, we introduce IndQNER, a manually annotated NER benchmark dataset in the religious domain that adheres to a meticulously designed annotation guideline. Since Indonesia has the world’s largest Muslim population, we build the dataset from the Indonesian translation of the Quran. The dataset includes 2475 named entities representing 18 different classes. To assess the annotation quality of IndQNER, we perform experiments with BiLSTM and CRF-based NER, as well as IndoBERT fine-tuning. The results reveal that the first model outperforms the second model achieving 0.98 F1 points. This outcome indicates that IndQNER may be an acceptable evaluation metric for Indonesian NER tasks in the aforementioned domain, widening the research’s domain range.}}, author = {{Gusmita, Ria Hari and Firmansyah, Asep Fajar and Moussallem, Diego and Ngonga Ngomo, Axel-Cyrille}}, booktitle = {{Natural Language Processing and Information Systems}}, isbn = {{9783031353192}}, issn = {{0302-9743}}, location = {{Derby, UK}}, publisher = {{Springer Nature Switzerland}}, title = {{{IndQNER: Named Entity Recognition Benchmark Dataset from the Indonesian Translation of the Quran}}}, doi = {{10.1007/978-3-031-35320-8_12}}, year = {{2023}}, } @article{46569, abstract = {{AbstractExternal visualization (i.e., physically embodied visualization) is central to the teaching and learning of mathematics. As external visualization is an important part of mathematics at all levels of education, it is diverse, and research on external visualization has become a wide and complex field. The aim of this scoping review is to characterize external visualizations in recent mathematics education research in order to develop a common ground and guide future research. A qualitative content analysis of the full texts of 130 studies published between 2018 and 2022 applied a deductive-inductive coding procedure to assess four dimensions: visualization product or process, type of visualization, media, and purpose. The analysis revealed different types of external visualizations including visualizations with physical resemblance ranging from pictorial to abstract visualizations as well as three types of visualizations with structural resemblance: length, area, and relational visualizations. Future research should include measures of visualization products or processes to help explain the demands and affordances that different types of visualizations present to learners and teachers.}}, author = {{Schoenherr, Johanna and Schukajlow, Stanislaw}}, issn = {{1863-9690}}, journal = {{ZDM – Mathematics Education}}, keywords = {{General Mathematics, Education}}, publisher = {{Springer Science and Business Media LLC}}, title = {{{Characterizing external visualization in mathematics education research: a scoping review}}}, doi = {{10.1007/s11858-023-01494-3}}, year = {{2023}}, } @inbook{46560, author = {{Vochatzer, Stefanie}}, booktitle = {{Creative Approaches to Climate and Peace Education. An Educationr’s Guide to Using Storytelling and Art}}, editor = {{Bentz , Julia }}, pages = {{48}}, publisher = {{Leibniz Insitute for Educational Media, Georg Eckert Institute}}, title = {{{My first contact with the Foodsharing Initiative}}}, year = {{2023}}, } @techreport{46534, abstract = {{We study the effect of education on health (hospital stays, number of diagnosed conditions, self-rated poor health, and obesity) over the life-cycle in Germany, using compulsory schooling reforms as a source of exogenous variation. Our results suggest a positive correlation of health and education which increases over the life-cycle. We do not, however, find any positive local average treatment effects of an additional year of schooling on health or health care utilization for individuals up to age 79. An exception is obesity, where positive effects of schooling start to be visible around age 60 and become very large in age group 75-79. The results in age group 75-79 need to be interpreted with caution, however, due to small sample size and possible problems of attrition.}}, author = {{Schmitz, Hendrik and Tawiah, Beatrice Baaba}}, keywords = {{Education, health, life-cycle effects, compulsory schooling}}, publisher = {{RWI - Leibniz-Institut für Wirtschaftsforschung, Ruhr-University Bochum, TU Dortmund University, University of Duisburg-Essen}}, title = {{{Life-cycle health effects of compulsory schooling}}}, volume = {{1006}}, year = {{2023}}, } @inproceedings{46575, author = {{Baci, Alkid and Heindorf, Stefan}}, booktitle = {{CIKM}}, title = {{{Accelerating Concept Learning via Sampling}}}, year = {{2023}}, } @techreport{46521, author = {{Freise, Diana and Schiele, Valentin and Schmitz, Hendrik}}, issn = {{1556-5068}}, keywords = {{General Earth and Planetary Sciences, General Environmental Science}}, publisher = {{Elsevier BV}}, title = {{{Housing Situations and Local COVID-19 Infection Dynamics – A Case Study With Small-Area Data}}}, doi = {{10.2139/ssrn.4372490}}, year = {{2023}}, } @unpublished{46579, abstract = {{The Koopman operator has become an essential tool for data-driven analysis, prediction and control of complex systems, the main reason being the enormous potential of identifying linear function space representations of nonlinear dynamics from measurements. Until now, the situation where for large-scale systems, we (i) only have access to partial observations (i.e., measurements, as is very common for experimental data) or (ii) deliberately perform coarse graining (for efficiency reasons) has not been treated to its full extent. In this paper, we address the pitfall associated with this situation, that the classical EDMD algorithm does not automatically provide a Koopman operator approximation for the underlying system if we do not carefully select the number of observables. Moreover, we show that symmetries in the system dynamics can be carried over to the Koopman operator, which allows us to massively increase the model efficiency. We also briefly draw a connection to domain decomposition techniques for partial differential equations and present numerical evidence using the Kuramoto--Sivashinsky equation.}}, author = {{Peitz, Sebastian and Harder, Hans and Nüske, Feliks and Philipp, Friedrich and Schaller, Manuel and Worthmann, Karl}}, booktitle = {{arXiv:2307.15325}}, title = {{{Partial observations, coarse graining and equivariance in Koopman operator theory for large-scale dynamical systems}}}, year = {{2023}}, } @techreport{46536, abstract = {{We study the effect of education on vaccination against COVID-19 and influenza in Germany and Europe. Our identification strategy makes use of changes in compulsory schooling laws and allows to estimate local average treatment effects for individuals between 59 and 91 years of age. We find no significant effect of an additional year of schooling on vaccination status in Germany. Pooling data from Europe, we conclude that schooling increases the likelihood to vaccinate against COVID by an economically negligible effect of one percentage point (zero for influenza). However, we find indications that additional schooling increases fear of side effects from COVID vaccination.}}, author = {{Monsees, Daniel and Schmitz, Hendrik}}, keywords = {{COVID, influenza, vaccination, education, compulsory schooling}}, publisher = {{RWI - Leibniz-Institut für Wirtschaftsforschung, Ruhr-University Bochum, TU Dortmund University, University of Duisburg-Essen}}, title = {{{The effect of compulsory schooling on vaccination against COVID and Influenza}}}, volume = {{1011}}, year = {{2023}}, } @inproceedings{46426, abstract = {{One of the main challenges for next generation automotive radars is the improvement of angular resolution to a sub-degree level. In this context, wide aperture automotive radars of 1m length or more and resolution close to 0.1° in azimuth and 0.5° in elevation could be beneficial. To enable coherent processing of arrays with such large aperture, prior (i.e offline) and online calibration are necessary: channel imbalances (gains and phases) and three dimensional coordinates of transmit and receive elements need to be determined. We propose a calibration strategy based on alternating steps between the two subtasks of i) channel imbalance estimation with ‘known’ array positions, by applying a singular value decomposition to the resulting tensor calculus problem; and ii) antenna position estimation with ’known’ channel imbalances, by numerically maximizing the Bayesian posterior probability; in both cases operating on range/Doppler snapshots of disjoint targets (with potentially unknown locations). Simulation studies based on the parameters of a MIMO 8x6 linear sparse array show promising results as long as the initial position errors do not exceed half a wavelength (2mm), beyond which we observe strong effects of ambiguity. Experimental results with real measurements show that after calibration in laboratory conditions, our MIMO 8x6 demonstrator with 50cm aperture is able to resolve two targets at the same range with angular separation at least as close as 0.4°.}}, author = {{Greiff, Christian and Mateos-Núñez, David and Simoni, Renato and González-Huici, Maria and Kruse, Stephan and Scheytt, J. Christoph and Kolk, Karl and Höller, Christian and Kurz, Heiko Gustav and Meinecke, Marc-Michael and Gisder, Thomas}}, booktitle = {{2023 24th International Radar Symposium (IRS)}}, location = {{Berlin, Germany}}, publisher = {{IEEE}}, title = {{{Calibration of Large Coherent MIMO Radar Arrays: Channel Imbalances and 3D Antenna Positions}}}, doi = {{10.23919/IRS57608.2023.10172475}}, year = {{2023}}, } @inproceedings{42459, author = {{Ostermann, Moritz and Behm, Jonathan and Marten, Thorsten and Tröster, Thomas}}, booktitle = {{WerkstoffPlus Auto 13. Fachtagung für neue Fahrzeug- und Werkstoffkonzepte}}, location = {{Stuttgart}}, title = {{{NeMo.bil - Dekarbonisierung des Verkehrs mithilfe von Leichtbau-Fahrzeugschwärmen}}}, year = {{2023}}, } @article{45984, author = {{Kaur, Mannat and Ramulu, Harshini Sri and Acar, Yasemin and Fiebig, Tobias}}, journal = {{Proc. ACM Hum. Comput. Interact.}}, number = {{CSCW1}}, pages = {{1–38}}, title = {{{"Oh yes! over-preparing for meetings is my jam :)": The Gendered Experiences of System Administrators}}}, doi = {{10.1145/3579617}}, volume = {{7}}, year = {{2023}}, } @article{45983, author = {{Bouma-Sims, Elijah and Acar, Yasemin}}, journal = {{Proc. ACM Hum. Comput. Interact.}}, number = {{CSCW1}}, pages = {{1–31}}, title = {{{Beyond the Boolean: How Programmers Ask About, Use, and Discuss Gender}}}, doi = {{10.1145/3579461}}, volume = {{7}}, year = {{2023}}, } @article{46622, author = {{Vöing, Nerea}}, journal = {{Lehren im Leben - Blog der Stiftung Innovation in der Hochschullehre}}, title = {{{16 Fragen, 16 Antworten: In unserer Rubrik „Lehren im Leben” stellen wir Menschen vor, die Hochschullehre gestalten. Folge 6: Dr. Nerea Vöing}}}, volume = {{6}}, year = {{2023}}, } @unpublished{46614, abstract = {{We discuss in which cases the Dunkl convolution of distributions, possibly both with non-compact support, can be defined and study its analytic properties. We prove results on the (singular-)support of Dunkl convolutions. Based on this, we are able to prove a theorem on elliptic regularity for a certain class of Dunkl operators, called elliptic Dunkl operators. Finally, for the root systems of type A we consider the Dunkl-type Riesz distributions, prove that their Dunkl convolution exists and compute their convolution.}}, author = {{Brennecken, Dominik}}, booktitle = {{arXiv:2308.07710}}, title = {{{Dunkl convolution and elliptic regularity for Dunkl operators}}}, year = {{2023}}, } @article{46623, author = {{Vöing, Nerea}}, journal = {{Trafohaus//Lehre (Podcast der HD Sachsen)}}, title = {{{Ein Blick auf Lehre und Lernen in Hochschulen durch die Brille der Hochschuldidaktik"}}}, year = {{2023}}, } @techreport{46624, author = {{Vöing, Nerea and Arnold, Maik and Reisas, Sabine}}, title = {{{Lehrentwicklung durch Scholarship of Teaching and Learning – mit SoTL Hochschullehre beforschen, weiterentwickeln und teilen}}}, year = {{2023}}, } @article{45602, author = {{Karakaya, Yasin and Somnitz, H. and Hermsen, A. and Gonchikzhapov, Munko and Kasper, Tina}}, issn = {{2666-352X}}, journal = {{Applications in Energy and Combustion Science}}, keywords = {{Metastable particles, Nanomaterials, Quartz-crystal-microbalance, Molecular-beam mass spectrometry, Tetramethylsilane, Reaction kinetics}}, publisher = {{Elsevier BV}}, title = {{{Revisiting the initial reaction rates for TMS combustion and a new evidence for metastable silica nanoparticles in the gas-phase synthesis}}}, doi = {{10.1016/j.jaecs.2023.100152}}, volume = {{14}}, year = {{2023}}, } @inproceedings{46451, abstract = {{New technologies and materials carry significant potential for sustainable production and use of products. As an example, Additive Manufacturing technologies and materials promise lightweight design and energy efficient use of parts. Exhausting the full potential requires: a) consideration of uncertainties with respect to future capabilities, and b) upgradeable design guidelines to cover advancements consistently. The proposed approach merges concepts of Design-for-X with foresight algorithms of Scenario-Technique to derive actionable knowledge. It is validated by an application in the field of Additive Manufacturing, namely Metal Fused Deposition Modelling. Engineers benefit from the intuitive access to heterogeneous types of sustainability related information.}}, author = {{Gräßler, Iris and Mozgova, Iryna and Pottebaum, Jens and Ott, Manuel and Jung, Philipp and Hesse, Philipp}}, booktitle = {{Procedia CIRP ICME}}, editor = {{Teti, Roberto}}, keywords = {{Design-for-X, Scenario-Technique, sustainability, uncertainty, Life-Cycle Engineering, Additive Manufacturing, Circular Economy}}, location = {{Gulf of Naples}}, publisher = {{Elsevier}}, title = {{{Handling of uncertainties in the design of sustainable Additive Manufacturing products by merging Design-for-X and Scenario-Technique}}}, year = {{2023}}, } @article{46644, abstract = {{A reliable, but cost-effective generation of single-photon states is key for practical quantum communication systems. For real-world deployment, waveguide sources offer optimum compatibility with fiber networks and can be embedded in hybrid integrated modules. Here, we present what we believe to be the first chip-size fully integrated fiber-coupled heralded single photon source (HSPS) module based on a hybrid integration of a nonlinear lithium niobate waveguide into a polymer board. Photon pairs at 810 nm (signal) and 1550 nm (idler) are generated via parametric down-conversion pumped at 532 nm in the LiNbO3 waveguide. The pairs are split in the polymer board and routed to separate output ports. The module has a size of (2 × 1) cm^2 and is fully fiber-coupled with one pump input fiber and two output fibers. We measure a heralded second-order correlation function of g_h(2)=0.05 with a heralding efficiency of η_h=3.5% at low pump powers}}, author = {{Kießler, Christian and Conradi, Hauke and Kleinert, Moritz and Quiring, Viktor and Herrmann, Harald and Silberhorn, Christine}}, issn = {{1094-4087}}, journal = {{Optics Express}}, keywords = {{Atomic and Molecular Physics, and Optics}}, number = {{14}}, publisher = {{Optica Publishing Group}}, title = {{{Fiber-coupled plug-and-play heralded single photon source based on Ti:LiNbO3 and polymer technology}}}, doi = {{10.1364/oe.487581}}, volume = {{31}}, year = {{2023}}, } @inbook{46647, abstract = {{SoTL ist eine forschungsbasierte Haltung, die die Hochschullehre verbessern und innovieren will. Das deutschsprachige SoTL-Netzwerk hat fünf Thesen formuliert, die SoTL als Grundhaltung und Motor für Lehrentwicklung betonen. Der Beitrag diskutiert diese Thesen und stellt Aktivitäten des Netzwerks vor, die SoTL an Hochschulen und Universitäten fördern und vernetzen wollen. Dabei wird auch die Rolle der »Teacher-Researcher« hervorgehoben.}}, author = {{Arnold, Maik and Vöing, Nerea and Reisas, Sabine}}, booktitle = {{Hochschulbildung: Lehre und Forschung}}, isbn = {{9783837661804}}, issn = {{2749-7623}}, publisher = {{transcript Verlag}}, title = {{{Scholarship of Teaching and Learning (SoTL) als Motor für eine inter- und transdisziplinäre Hochschuldidaktik}}}, doi = {{10.14361/9783839461808-022}}, year = {{2023}}, } @inproceedings{46493, author = {{Weller, Julian and Roesmann, Daniel and Eggert, Sönke and von Enzberg, Sebastian and Gräßler, Iris and Dumitrescu, Roman}}, booktitle = {{Procedia CIRP}}, issn = {{2212-8271}}, pages = {{514--520}}, publisher = {{Elsevier BV}}, title = {{{Identification and prediction of standard times in machining for precision steel tubes through the usage of data analytics}}}, doi = {{10.1016/j.procir.2023.01.011}}, volume = {{119}}, year = {{2023}}, } @inproceedings{46646, author = {{Althaus, Maike and Grieger, Nicole and Vorbohle, Christian and Müller, Michelle and Kundisch, Dennis}}, location = {{Madrid, Spanien}}, title = {{{Business Models for Cultural Event Platforms - A Taxonomy Approach}}}, year = {{2023}}, } @inproceedings{46591, author = {{Mapura Ramirez, Luz Alejandra and Kenig, Eugeny Y.}}, location = {{Frankfurt am Main}}, title = {{{Zur Berechnug von flüssigkeitsseitigen Stoffübergagnskoeffizienten für Strukturpackungen}}}, year = {{2023}}, } @article{23428, abstract = {{The Koopman operator has become an essential tool for data-driven approximation of dynamical (control) systems in recent years, e.g., via extended dynamic mode decomposition. Despite its popularity, convergence results and, in particular, error bounds are still quite scarce. In this paper, we derive probabilistic bounds for the approximation error and the prediction error depending on the number of training data points; for both ordinary and stochastic differential equations. Moreover, we extend our analysis to nonlinear control-affine systems using either ergodic trajectories or i.i.d. samples. Here, we exploit the linearity of the Koopman generator to obtain a bilinear system and, thus, circumvent the curse of dimensionality since we do not autonomize the system by augmenting the state by the control inputs. To the best of our knowledge, this is the first finite-data error analysis in the stochastic and/or control setting. Finally, we demonstrate the effectiveness of the proposed approach by comparing it with state-of-the-art techniques showing its superiority whenever state and control are coupled.}}, author = {{Nüske, Feliks and Peitz, Sebastian and Philipp, Friedrich and Schaller, Manuel and Worthmann, Karl}}, journal = {{Journal of Nonlinear Science}}, title = {{{Finite-data error bounds for Koopman-based prediction and control}}}, doi = {{10.1007/s00332-022-09862-1}}, volume = {{33}}, year = {{2023}}, } @unpublished{46649, abstract = {{Different conflicting optimization criteria arise naturally in various Deep Learning scenarios. These can address different main tasks (i.e., in the setting of Multi-Task Learning), but also main and secondary tasks such as loss minimization versus sparsity. The usual approach is a simple weighting of the criteria, which formally only works in the convex setting. In this paper, we present a Multi-Objective Optimization algorithm using a modified Weighted Chebyshev scalarization for training Deep Neural Networks (DNNs) with respect to several tasks. By employing this scalarization technique, the algorithm can identify all optimal solutions of the original problem while reducing its complexity to a sequence of single-objective problems. The simplified problems are then solved using an Augmented Lagrangian method, enabling the use of popular optimization techniques such as Adam and Stochastic Gradient Descent, while efficaciously handling constraints. Our work aims to address the (economical and also ecological) sustainability issue of DNN models, with a particular focus on Deep Multi-Task models, which are typically designed with a very large number of weights to perform equally well on multiple tasks. Through experiments conducted on two Machine Learning datasets, we demonstrate the possibility of adaptively sparsifying the model during training without significantly impacting its performance, if we are willing to apply task-specific adaptations to the network weights. Code is available at https://github.com/salomonhotegni/MDMTN.}}, author = {{Hotegni, Sedjro Salomon and Peitz, Sebastian and Berkemeier, Manuel Bastian}}, booktitle = {{arXiv:2308.12243}}, pages = {{13}}, title = {{{Multi-Objective Optimization for Sparse Deep Neural Network Training}}}, year = {{2023}}, } @article{46637, author = {{Gonchikzhapov, Munko and Kasper, Tina}}, issn = {{2666-352X}}, journal = {{Applications in Energy and Combustion Science}}, keywords = {{Nanoparticle synthesis, Flame spray pyrolysis, SpraySyn burner, Flame structure, Species distribution, Temperature distribution}}, publisher = {{Elsevier BV}}, title = {{{Thermal and chemical structure of ethanol and 2-ethylhexanoic acid/ethanol SpraySyn flames}}}, doi = {{10.1016/j.jaecs.2023.100174}}, volume = {{15}}, year = {{2023}}, } @article{21600, abstract = {{Many problems in science and engineering require an efficient numerical approximation of integrals or solutions to differential equations. For systems with rapidly changing dynamics, an equidistant discretization is often inadvisable as it results in prohibitively large errors or computational effort. To this end, adaptive schemes, such as solvers based on Runge–Kutta pairs, have been developed which adapt the step size based on local error estimations at each step. While the classical schemes apply very generally and are highly efficient on regular systems, they can behave suboptimally when an inefficient step rejection mechanism is triggered by structurally complex systems such as chaotic systems. To overcome these issues, we propose a method to tailor numerical schemes to the problem class at hand. This is achieved by combining simple, classical quadrature rules or ODE solvers with data-driven time-stepping controllers. Compared with learning solution operators to ODEs directly, it generalizes better to unseen initial data as our approach employs classical numerical schemes as base methods. At the same time it can make use of identified structures of a problem class and, therefore, outperforms state-of-the-art adaptive schemes. Several examples demonstrate superior efficiency. Source code is available at https://github.com/lueckem/quadrature-ML.}}, author = {{Dellnitz, Michael and Hüllermeier, Eyke and Lücke, Marvin and Ober-Blöbaum, Sina and Offen, Christian and Peitz, Sebastian and Pfannschmidt, Karlson}}, journal = {{SIAM Journal on Scientific Computing}}, number = {{2}}, pages = {{A579--A595}}, title = {{{Efficient time stepping for numerical integration using reinforcement learning}}}, doi = {{10.1137/21M1412682}}, volume = {{45}}, year = {{2023}}, } @inbook{46691, author = {{Dahms, Frederik and Homberg, Werner}}, booktitle = {{Lecture Notes in Mechanical Engineering}}, isbn = {{9783031410222}}, issn = {{2195-4356}}, location = {{Cannes, France}}, publisher = {{Springer Nature Switzerland}}, title = {{{Analysis and Modelling of the Deformation in the Manufacture of Flange-Contours by the Combined Friction-Spinning and Flow-Forming Process}}}, doi = {{10.1007/978-3-031-41023-9_72}}, year = {{2023}}, } @inproceedings{46665, author = {{Garnefeld, I. and Böhm, Eva and Hanf, L. and Helm, S.}}, booktitle = {{2023 AMA Summer Academic Conference, San Francisco, CA}}, location = {{San Francisco, CA}}, title = {{{Unboxing video effectiveness – Does speech matter?}}}, year = {{2023}}, } @inproceedings{46666, author = {{Kessing, K. and Garnefeld, I. and Böhm, Eva}}, booktitle = {{EMAC Annual Conference, Odense, Denmark}}, location = {{Odense, Denmark.}}, title = {{{The dark and bright side of online reviews in manufacturer online shops}}}, year = {{2023}}, } @inproceedings{46667, author = {{Hanf, L. and Garnefeld, I. and Böhm, Eva and Helm, S.}}, booktitle = {{EMAC Annual Conference, Odense, Denmark}}, location = {{Odense, Denmark}}, title = {{{Stimulating engagement with unboxing videos – Does speech matter?}}}, year = {{2023}}, } @inproceedings{46739, author = {{Sadeghi-Kohan, Somayeh and Hellebrand, Sybille and Wunderlich, Hans-Joachim}}, booktitle = {{2023 53rd Annual IEEE/IFIP International Conference on Dependable Systems and Networks Workshops (DSN-W)}}, publisher = {{IEEE}}, title = {{{Low Power Streaming of Sensor Data Using Gray Code-Based Approximate Communication}}}, doi = {{10.1109/dsn-w58399.2023.00056}}, year = {{2023}}, } @inproceedings{46740, author = {{Janzen, Thomas and Wotschel, Philipp and Meier, Jana and Vogelsang, Christoph}}, booktitle = {{EARLI 2023}}, location = {{Thessaloniki, Greece}}, title = {{{Assessing pre-service EFL teachers’ feedback performance in role-play-based simulations}}}, year = {{2023}}, } @article{46741, author = {{Zscherp, Mario Fabian and Jentsch, Silas Aurel and Müller, Marius Johannes and Lider, Vitalii and Becker, Celina and Chen, Limei and Littmann, Mario and Meier, Falco and Beyer, Andreas and Hofmann, Detlev Michael and As, Donat Josef and Klar, Peter Jens and Volz, Kerstin and Chatterjee, Sangam and Schörmann, Jörg}}, issn = {{1944-8244}}, journal = {{ACS Applied Materials & Interfaces}}, keywords = {{General Materials Science}}, number = {{33}}, pages = {{39513--39522}}, publisher = {{American Chemical Society (ACS)}}, title = {{{Overcoming the Miscibility Gap of GaN/InN in MBE Growth of Cubic InxGa1–xN}}}, doi = {{10.1021/acsami.3c06319}}, volume = {{15}}, year = {{2023}}, } @inproceedings{33722, author = {{Müller, Michelle and Neumann, Jürgen}}, booktitle = {{Proceedings of the 55th Hawaii International Conference on System Sciences (HICSS)}}, location = {{Maui, Hawaii, USA}}, title = {{{Bring me my Meal on your Wheel - An Empirical Analysis of the Impact of Food Delivery Platforms on Local Restaurant Employment}}}, year = {{2023}}, } @article{44143, abstract = {{AbstractWorking conditions of knowledge workers have been subject to rapid change recently. Digital nomadism is no longer a phenomenon that relates only to entrepreneurs, freelancers, and gig workers. Corporate employees, too, have begun to uncouple their work from stationary (home) offices and 9-to-5 schedules. However, pursuing a permanent job in a corporate environment is still subject to fundamentally different values than postulated by the original notion of digital nomadism. Therefore, this paper explores the work identity of what is referred to as ‘corporate nomads’. By drawing on identity theory and the results of semi-structured interviews, the paper proposes a conceptualization of the corporate nomad archetype and presents nine salient identity issues of corporate nomads (e.g., holding multiple contradictory identities, the flexibility paradox, or collaboration constraints). By introducing the ‘corporate nomad’ archetype to the Information Systems literature, this article helps to rethink established conceptions of “home office” and socio-spatial configurations of knowledge work.}}, author = {{Marx, Julian and Stieglitz, Stefan and Brünker, Felix and Mirbabaie, Milad}}, issn = {{2363-7005}}, journal = {{Business & Information Systems Engineering}}, keywords = {{Information Systems}}, publisher = {{Springer Science and Business Media LLC}}, title = {{{Home (Office) is where your Heart is}}}, doi = {{10.1007/s12599-023-00807-w}}, year = {{2023}}, } @article{46487, author = {{Zander, K.K. and Nguyen, D. and Mirbabaie, Milad and Garnett, S.T.}}, issn = {{2212-4209}}, journal = {{International Journal of Disaster Risk Reduction}}, keywords = {{Geology, Safety Research, Geotechnical Engineering and Engineering Geology, Building and Construction}}, publisher = {{Elsevier BV}}, title = {{{Aware but not prepared: understanding situational awareness during the century flood in Germany in 2021}}}, doi = {{10.1016/j.ijdrr.2023.103936}}, volume = {{96}}, year = {{2023}}, } @book{45863, abstract = {{In the proposal for our CRC in 2011, we formulated a vision of markets for IT services that describes an approach to the provision of such services that was novel at that time and, to a large extent, remains so today: „Our vision of on-the-fly computing is that of IT services individually and automatically configured and brought to execution from flexibly combinable services traded on markets. At the same time, we aim at organizing markets whose participants maintain a lively market of services through appropriate entrepreneurial actions.“ Over the last 12 years, we have developed methods and techniques to address problems critical to the convenient, efficient, and secure use of on-the-fly computing. Among other things, we have made the description of services more convenient by allowing natural language input, increased the quality of configured services through (natural language) interaction and more efficient configuration processes and analysis procedures, made the quality of (the products of) providers in the marketplace transparent through reputation systems, and increased the resource efficiency of execution through reconfigurable heterogeneous computing nodes and an integrated treatment of service description and configuration. We have also developed network infrastructures that have a high degree of adaptivity, scalability, efficiency, and reliability, and provide cryptographic guarantees of anonymity and security for market participants and their products and services. To demonstrate the pervasiveness of the OTF computing approach, we have implemented a proof-of-concept for OTF computing that can run typical scenarios of an OTF market. We illustrated the approach using a cutting-edge application scenario – automated machine learning (AutoML). Finally, we have been pushing our work for the perpetuation of On-The-Fly Computing beyond the SFB and sharing the expertise gained in the SFB in events with industry partners as well as transfer projects. This work required a broad spectrum of expertise. Computer scientists and economists with research interests such as computer networks and distributed algorithms, security and cryptography, software engineering and verification, configuration and machine learning, computer engineering and HPC, microeconomics and game theory, business informatics and management have successfully collaborated here.}}, author = {{Haake, Claus-Jochen and Meyer auf der Heide, Friedhelm and Platzner, Marco and Wachsmuth, Henning and Wehrheim, Heike}}, pages = {{247}}, publisher = {{Heinz Nixdorf Institut, Universität Paderborn}}, title = {{{On-The-Fly Computing -- Individualized IT-services in dynamic markets}}}, doi = {{10.17619/UNIPB/1-1797}}, volume = {{412}}, year = {{2023}}, } @article{45458, author = {{Stieglitz, Stefan and Mirbabaie, Milad and Deubel, Annika and Braun, Lea-Marie and Kissmer, Tobias}}, issn = {{0268-4012}}, journal = {{International Journal of Information Management}}, keywords = {{Library and Information Sciences, Computer Networks and Communications, Information Systems}}, publisher = {{Elsevier BV}}, title = {{{The potential of digital nudging to bridge the gap between environmental attitude and behavior in the usage of smart home applications}}}, doi = {{10.1016/j.ijinfomgt.2023.102665}}, volume = {{72}}, year = {{2023}}, } @article{46746, author = {{Mirbabaie, Milad and Marx, Julian and Erle, Lukas}}, issn = {{1943-7544}}, journal = {{Pacific Asia Journal of the Association for Information Systems}}, title = {{{Digital Nudge Stacking and Backfiring: Understanding Sustainable E-Commerce Purchase Decisions}}}, year = {{2023}}, } @misc{46753, abstract = {{Die Energieaufnahme von Haushaltskältegeräten ist seit den 1990er Jahren erheblich gesunken. Dieser Wert wird von den Herstellern im Neuzustand der Geräte unter Normbedingungen bestimmt. Wie jedes technische System unterliegen jedoch auch Haushaltskältegeräte einem Alterungsprozess, der zu einem Anstieg der Energieaufnahme über die Zeit führt. Im Rahmen dieser Dissertation wurde auf der Grundlage von 100 Messungen der Energieaufnahme, die an 32 Geräten über einen Zeitraum von 21 Jahren durchgeführt wurden, ein Alterungsmodell entwickelt. Dieses Modell ist das erste, das mit Hilfe von Daten der Energieaufnahme real gealterter Geräte entwickelt wurde. Es beschreibt einen Anstieg der Energieaufnahme von 27 % über die durchschnittliche Einsatzzeit eines Haushaltskältegeräts von 16 Jahren. Der stärkste Anstieg erfolgt in den ersten fünf Betriebsjahren. Durch Diffusionsvorgänge in dem im Gehäuse verbauten Polyurethan-Schaum wird das im Zellgas vorhandene Kohlenstoffdioxid durch Luft ersetzt. Hierdurch steigt die Wärmeleitfähigkeit des Schaums um ca. 33 % an, wodurch sich die Energieaufnahme der Geräte erhöht. Des Weiteren wurde der Einsatz von Paraffinen als Phasenwechselmaterial in Haushaltskältegeräten untersucht. Durch deren Einsatz konnte die Energieaufnahme gesenkt und die Funktionalität der Geräte gesteigert werden. Hierfür sind detaillierte Kenntnisse der Materialkenndaten der Paraffine notwendig. Die Wärmeleitfähigkeit der verschiedenen Paraffin-Stoffgruppen in der festen Phase ist jedoch bisher nur unzureichend untersucht worden. Daher wurde ein Messaufbau entwickelt, mit dem die Wärmeleitfähigkeit von festem Paraffin bestimmt werden kann, und es wurden entsprechende Messungen durchgeführt.}}, author = {{Paul, Andreas}}, publisher = {{LibreCat University}}, title = {{{Analyse von Alterungsmechanismen im Hinblick auf die Effizienz von Haushaltskältegeräten}}}, doi = {{10.17619/UNIPB/1-1784}}, year = {{2023}}, } @article{34114, abstract = {{Qualitative comparative analysis (QCA) enables researchers in international management to better understand how the impact of a single explanatory factor depends on the context of other factors. But the analytical toolbox of QCA does not include a parameter for the explanatory power of a single explanatory factor or “condition”. In this paper, we therefore reinterpret the Banzhaf power index, originally developed in cooperative game theory, to establish a goodness-of-fit parameter in QCA. The relative Banzhaf index we suggest measures the explanatory power of one condition averaged across all sufficient combinations of conditions. The paper argues that the index is especially informative in three situations that are all salient in international management and call for a context-sensitive analysis of single conditions, namely substantial limited diversity in the data, the emergence of strong INUS conditions in the analysis, and theorizing with contingency factors. The paper derives the properties of the relative Banzhaf index in QCA, demonstrates how the index can be computed easily from a rudimentary truth table, and explores its insights by revisiting selected papers in international management that apply fuzzy-set QCA. It finally suggests a three-step procedure for utilizing the relative Banzhaf index when the causal structure involves both contingency effects and configurational causation. }}, author = {{Haake, Claus-Jochen and Schneider, Martin}}, journal = {{Journal of International Management}}, keywords = {{Qualitative comparative analysis, Banzhaf power index, causality, explanatory power}}, publisher = {{Elsevier}}, title = {{{Playing games with QCA: Measuring the explanatory power of single conditions with the Banzhaf index}}}, year = {{2023}}, } @inproceedings{46757, author = {{Schwerin, Imke and Häsel-Weide, Uta}}, booktitle = {{International Symposium in Elementary Mathematics Teaching. Proceedings: New Directions in Elementary Mathematics Education}}, editor = {{Novotna, J. and Moraova, H.}}, location = {{Prag}}, pages = {{297--305}}, publisher = {{Charles University}}, title = {{{Second grader´s understanding of doubling and halfing in various representations}}}, year = {{2023}}, } @inbook{46758, author = {{Schmidt, Rebekka and Tenberge, Claudia and Häsel-Weide, Uta}}, booktitle = {{Aktive Teilhabe fördern – ICM und Student Engagement in der Hochschullehre}}, editor = {{Vöing, N. and Schmidt, R. and Neiske, I.}}, pages = {{297--318}}, publisher = {{Visual Ink Publishing}}, title = {{{Lehre in Zeiten von Digitalisierung und Inklusion - Beispiele aus drei Fächern}}}, year = {{2023}}, } @article{46103, author = {{A. Erofeeva, Maria and Klowait, Nils and Zababurin, Denis}}, issn = {{2413-144X}}, journal = {{Sociology of Power}}, keywords = {{General Medicine}}, number = {{3}}, pages = {{156--181}}, publisher = {{The Russian Presidential Academy of National Economy and Public Administration}}, title = {{{How to Speak Silently — Rethinking Materiality, Agency, and Communicative Competence in Virtual Reality}}}, doi = {{10.22394/2074-0492-2022-3-156-181}}, volume = {{34}}, year = {{2023}}, } @article{46483, abstract = {{The demands on joining technology are constantly increasing due to the consistent lightweight construction and the associated increasing material mix. To meet these requirements, the adaptability of the joining processes must be improved to be able to process different material combinations and to react to challenges caused by deviations in the process chain. One example of a highly adaptable process due to the two-step process sequence is thermomechanical joining with Friction Spun Joint Connectors (FSJCs) that can be individually adapted to the joint. In this paper, the potentials of the adaption in the two-stage joining process with aluminium auxiliary joining elements are investigated. To this end, it is first investigated whether a thermomechanical forming process can be used to achieve a uniform and controlled manufacturing regarding the process variable of the temperature as well as the geometry of the FSJC. Based on the successful proof of the high and good repeatability in the FSJC manufacturing, possibilities, and potentials for the targeted influencing of the process and FSJC geometry are shown, based on an extensive variation of the process input variables (delivery condition and thus mechanical properties of the raw parts as well as the process parameters of rotational speed and feed rate). Here it can be shown that above all, the feed rate of the final forming process has the strongest influence on the process and thus also offers the strongest possibilities for influencing it.}}, author = {{Borgert, Thomas and Henke, Maximilian and Homberg, Werner}}, issn = {{2504-4494}}, journal = {{Journal of Manufacturing and Materials Processing}}, keywords = {{Industrial and Manufacturing Engineering, Mechanical Engineering, Mechanics of Materials}}, number = {{4}}, publisher = {{MDPI AG}}, title = {{{Investigations on the Influences of the Thermomechanical Manufacturing of Aluminium Auxiliary Joining Elements}}}, doi = {{10.3390/jmmp7040147}}, volume = {{7}}, year = {{2023}}, } @inbook{46752, abstract = {{Due to current global challenges regarding energy security as well as climate change the importance of preserving the nature and all available resources is steadily increasing. In order to achieve the energy-saving and climate targets, it is not only necessary to develop new processes and processing possibilities, but also to optimise known process chains with regard to energy and resource efficiency in the area of production technology. Here, the recycling of supposed production waste represents an opportunity to save energy. In addition to the conventional and smelting metallurgical recycling process, extensive research activities have therefore been carried out for alternative solid-state recycling processes. One example is the friction-induced recycling process, which has been used in past studies to demonstrate the energy- and resource-efficient production of semi-finished products from aluminium scrap such as chips. In addition, properties like chemical composition and strength can be adjusted locally and in terms of processing time. This can be used to improve the versatility of further processing steps.}}, author = {{Borgert, Thomas and Homberg, Werner}}, booktitle = {{Lecture Notes in Mechanical Engineering}}, isbn = {{9783031413407}}, issn = {{2195-4356}}, publisher = {{Springer Nature Switzerland}}, title = {{{Friction-Induced Recycled Aluminium Semi-finished Products in Thermo-mechanical Joining Technology}}}, doi = {{10.1007/978-3-031-41341-4_1}}, year = {{2023}}, } @book{44719, abstract = {{„Lerne deinen Körper besser kennen“, „Das Beste für deine Gesundheit“ und „Ihre Transformation beginnt jetzt“ - mit Versprechen wie diesen vermitteln die Produkttexte von Wearables wie Fitnesstracker und Smartwatches ein ganz bestimmtes Bild ihrer vorgesehenen Nutzer*innen und deren Nutzung. Verbunden mit den kleinen, am Handgelenk getragenen Geräten sind Fragen nach Erkenntnisgewinn und Kontrollverlust, Selbstoptimierung und Quantifizierungslogiken, Eigenverantwortung und Fremdsteuerung. Die vorliegende Arbeit widmet sich diesem komplexen Spannungsfeld und verfolgt dabei einen multiperspektivischen Ansatz: im Rahmen einer Dispositivanalyse werden die einzelnen Elemente des Wearable-Dispositivs als eigenständige, empirisch zu untersuchende Analysegegenstände betrachtet, um so das Zusammenwirken und die komplexe Beziehung von Diskursen, Gegenständen, Nutzung, Subjekten und Gesellschaft zu erforschen. Ein besonderes Erkenntnisinteresse liegt dabei auf dem Wissen, was sich über Wearables etabliert hat und sich in den Alltagspraktiken der Nutzer*innen widerspiegelt sowie bei der Frage nach den möglichen Funktionen und Auswirkungen des Wearable-Dispositivs. }}, author = {{Schloots, Franziska Margarete}}, isbn = {{9783658409012}}, issn = {{2512-112X}}, keywords = {{Selbstvermessung, Dispositivanalyse, Gesundheitsdiskurs, Quantifizierungsgesellschaft, Wearables, Selbstoptimierung}}, publisher = {{Springer Fachmedien Wiesbaden}}, title = {{{Mit dem Leben Schritt halten - Eine Analyse des Wearable-Dispositivs}}}, doi = {{10.1007/978-3-658-40902-9}}, year = {{2023}}, } @inproceedings{46762, author = {{Tchomgue Simeu, Arnold and Mahnken, Rolf}}, booktitle = {{XI International Conference on Adaptive Modeling and Simulation}}, publisher = {{CIMNE}}, title = {{{Mesh- and model adaptivity for elasto-plastic mean-field and full-field homogenization based on downwind and upwind approximations}}}, doi = {{10.23967/admos.2023.054}}, year = {{2023}}, } @article{46642, abstract = {{ Purpose This study aims to conceptually propose and empirically validate a path perspective on the servitization process of manufacturing firms. It identifies a customer and an outcome path to servitization, sheds light on the pivotal role of digital technology usage for both value-creating paths and explores their financial and relational performance outcomes. Design/methodology/approach The authors use a mixed-method approach, combining a qualitative study with a cross-sectional survey in the USA, the UK and Germany. Findings Manufacturing firms choose between two generic paths to servitization, a customer and an outcome path. Digital technology usage is equally important for both value-creating paths. Progress on the outcome path has a positive effect on firms’ financial performance, whereas the customer path has an indirect effect only, fully mediated by firms’ relational performance. Customer tenure and customer’s open-mindedness are contingency variables in the digital technology usage – servitization path – firm performance framework. Research limitations/implications A path perspective is useful to conceptualize the servitization processes in manufacturing industries. Future research should investigate the sequential choice of servitization paths and explore its drivers and performance outcomes. Practical implications To create and claim superior value for their customers, managers can choose between two servitization paths, leading to differential performance outcomes. While digital technology usage is key to progress on both paths, it is particularly effective for newly acquired customers on the customer path. Suppliers should target their value-creating service offerings at open-minded customer firms to reap their full performance potential. Originality/value Propose and empirically validate a path-perspective on servitization. Understand the pivotal importance of digital technology usage for both servitization paths. }}, author = {{Harrmann, Lisa Katharina and Eggert, Andreas and Böhm, Eva}}, issn = {{0309-0566}}, journal = {{European Journal of Marketing}}, keywords = {{Marketing}}, number = {{3}}, pages = {{834--857}}, publisher = {{Emerald}}, title = {{{Digital technology usage as a driver of servitization paths in manufacturing industries}}}, doi = {{10.1108/ejm-11-2021-0914}}, volume = {{57}}, year = {{2023}}, } @article{46765, abstract = {{Über zwei Drittel der Anfänger*innen im Übergangssystem verfügen maximal über einen Hauptschul-/Mittelschulabschluss. Sie sind damit überrepräsentiert, was sich weniger durch ihre Kompetenzen als mit ihrem sozioökonomischen Status und klassenspezifischen Nachqualifizierungsverhalten erklären lässt.}}, author = {{Sommer, Christian}}, issn = {{00059536}}, journal = {{Berufsbildung. Zeitschrift für Theorie-Praxis-Dialog}}, keywords = {{Social inequality, Transition system}}, pages = {{9--13}}, publisher = {{wbv}}, title = {{{Der Hauptschulabschluss als sozial selektiver Hauptzulieferer des Übergangssystems}}}, doi = {{10.3278/BB2303W}}, volume = {{199}}, year = {{2023}}, } @inbook{46234, author = {{Süßmann, Johannes}}, booktitle = {{Monumenta. Erinnerungsorte zwischen Weser und Lippe. Die Monumenta Paderbornensia des Ferdinand von Fürstenberg}}, editor = {{Diekmann, Julia and Moors, Markus and Neuwöhner, Andreas}}, isbn = {{978-3-506-79364-5}}, pages = {{40–71}}, publisher = {{Brill | Schöningh}}, title = {{{»In der Art von Inschriften«. Emblematische Inschriftendichtung als Darstellungsprinzip von Ferdinand von Fürstenbergs Monumenta Paderbornensia (1669 und 1672)}}}, doi = {{https://doi.org/10.30965/9783657793648_005}}, volume = {{92}}, year = {{2023}}, } @article{45323, author = {{Zdoupas, Philippos and Laubenstein, Désirée}}, journal = {{European Journal of Special Needs Education (Latest Articles)}}, number = {{5}}, pages = {{717--730}}, title = {{{Perceptions of inclusion in students with diagnosed behavioural, emotional and social difficulties (BESD) displaying internalising and externalising behaviour in inclusive and special education}}}, doi = {{10.1080/08856257.2022.2159281}}, volume = {{38}}, year = {{2023}}, } @book{46276, author = {{Zdoupas, Philippos and Lara, Kuhlhoff and Martin, Grust and Jaekel, Anne-Marie and Jan, Ehlert}}, pages = {{21}}, publisher = {{LibreCat University}}, title = {{{Entwicklungszielgespräche in der Sekundarstufe I - Systemisches Coaching mit Schüler:innen nach dem GROW-Modell}}}, doi = {{10.17619/UNIPB/1-1756}}, year = {{2023}}, } @article{46760, author = {{Schubatzky, Thomas and Burde, Jan-Philipp and Große-Heilmann, Rike and Haagen-Schützenhöfer, Claudia and Riese, Josef and Weiler, David}}, issn = {{0360-1315}}, journal = {{Computers & Education}}, keywords = {{Education, General Computer Science}}, publisher = {{Elsevier BV}}, title = {{{Predicting the development of digital media PCK/TPACK: The role of PCK, motivation to use digital media, interest in and previous experience with digital media}}}, doi = {{10.1016/j.compedu.2023.104900}}, year = {{2023}}, } @article{46784, author = {{Wallscheid, Oliver and Peitz, Sebastian and Stenner, Jan and Weber, Daniel and Boshoff, Septimus and Meyer, Marvin and Chidananda, Vikas and Schweins, Oliver}}, issn = {{2475-9066}}, journal = {{Journal of Open Source Software}}, keywords = {{General Earth and Planetary Sciences, General Environmental Science}}, number = {{89}}, publisher = {{The Open Journal}}, title = {{{ElectricGrid.jl - A Julia-based modeling and simulationtool for power electronics-driven electric energy grids}}}, doi = {{10.21105/joss.05616}}, volume = {{8}}, year = {{2023}}, } @inbook{46787, abstract = {{SoTL ist eine forschungsbasierte Haltung, die die Hochschullehre verbessern und innovieren will. Das deutschsprachige SoTL-Netzwerk hat fünf Thesen formuliert, die SoTL als Grundhaltung und Motor für Lehrentwicklung betonen. Der Beitrag diskutiert diese Thesen und stellt Aktivitäten des Netzwerks vor, die SoTL an Hochschulen und Universitäten fördern und vernetzen wollen. Dabei wird auch die Rolle der »Teacher-Researcher« hervorgehoben.}}, author = {{Arnold, Maik and Vöing, Nerea and Reisas, Sabine}}, booktitle = {{Hochschulbildung: Lehre und Forschung}}, isbn = {{9783837661804}}, issn = {{2749-7623}}, publisher = {{transcript Verlag}}, title = {{{Scholarship of Teaching and Learning (SoTL) als Motor für eine inter- und transdisziplinäre Hochschuldidaktik}}}, doi = {{10.14361/9783839461808-022}}, year = {{2023}}, } @article{45480, abstract = {{For improved and rational design of catalysts, in-depth knowledge of their formation and structural evolution during synthesis is a key parameter. Thus, preparation of a Ni methanation catalyst derived from...}}, author = {{Prinz, Nils and Strübbe, Sven and Bauer, Matthias and Zobel, Mirijam}}, issn = {{1144-0546}}, journal = {{New Journal of Chemistry}}, keywords = {{Materials Chemistry, General Chemistry, Catalysis}}, publisher = {{Royal Society of Chemistry (RSC)}}, title = {{{Structural transitions during Ni nanoparticle formation by decomposition of a Ni-containing metal-organic framework using in-situ total scattering}}}, doi = {{10.1039/d3nj00493g}}, year = {{2023}}, } @inbook{46795, author = {{Böker, Ines and Willeke, Stephanie}}, booktitle = {{Neue Perspektiven einer kulturwissenschaftlich orientierten Literaturdidaktik}}, editor = {{Hofmann, Michael and Thielking, Sigrid}}, title = {{{"Nicht das erste Mal, dass ich die Orientierung verloren habe" – Transkulturalität und Deutschdidaktik im Dialog}}}, year = {{2023}}, } @inbook{46797, author = {{Böker, Ines}}, booktitle = {{Interkulturelle Konstellationen in Literaturwissenschaft und Literaturdidaktik}}, editor = {{Böker, Ines and Schulte Eickholt, Swen}}, title = {{{Kurze Bestandsaufnahme zum postmigrantischen Theater und postmigrantischer Theaterwissenschaft}}}, year = {{2023}}, } @book{46798, editor = {{Böker, Ines and Schulte Eickholt, Swen}}, pages = {{644}}, title = {{{Interkulturelle Konstellationen in Literaturwissenschaft und Literaturdidaktik}}}, year = {{2023}}, } @techreport{46804, abstract = {{In common law systems, firms’ litigation risk depends both on written laws and how courts interpret these laws. Using 321 U.S. circuit court rulings, we introduce a novel measure capturing courts’ attitudes towards defendants in securities lawsuits. Our results confirm that financial misreporting firms in more defendant-friendly circuits face fewer lawsuits. Consistent with lower expected litigation costs, firms in these circuits face less negative market reactions when misreporting is revealed, invest less in preventing misreporting, and are more likely to engage in aggressive misreporting. We conclude that defendant-friendly precedents reduce firms’ legal liability and worsen their financial reporting quality. }}, author = {{Franke, Benedikt and Huang, Allen and Li, Reeyarn and Wang, Hui}}, title = {{{Securities Law Precedents, Legal Liability, and Financial Reporting Quality}}}, year = {{2023}}, } @inbook{46809, author = {{Rossel, M. and Meschut, G.}}, booktitle = {{Lecture Notes in Mechanical Engineering}}, isbn = {{9783031413407}}, issn = {{2195-4356}}, publisher = {{Springer Nature Switzerland}}, title = {{{Modeling and Parameterization for a 3D Simulation of Clinching with an Extensible Die}}}, doi = {{10.1007/978-3-031-41341-4_9}}, year = {{2023}}, } @article{46818, abstract = {{AbstractObjectiveConcerns about short‐ and long‐term consequences of repetitive heading contributed to heading restrictions in youth football in some countries. This prospective longitudinal cohort study aims to describe heading exposure in children's and youth football over two seasons using standardized video analysis.MethodsAll matches and training sessions of a male Under‐11 (n = 29), Under‐15 (n = 28), Under‐19 (n = 38), and female Under‐17 (n = 39) team were videotaped during the seasons 2019–2020 and 2020–2021. Heading frequencies and characteristics were analyzed. Individual heading exposure is presented as average incidence rates (IR) per 1000 match/training hours.ResultsIn 275 matches and 673 training sessions, 22 921 headers were observed. Heading IR per player in matches was 1256 (Under‐11 m), 1608 (Under‐15 m), 1050 (Under‐17 f), and 1966 (Under‐19 m). In training sessions, IR per player was 739 (Under‐11 m), 2206 (Under‐15 m), 1661 (Under‐17 f), and 1419 (Under‐19 m). Five Under‐15 males headed the ball five to eight times per training on average. Most headers were performed without heading duels. Flight distance was predominantly 5–20 m (54%) in matches and <5 m (65%) in training. While head impact location most frequently was at frontal areas, one‐third of all headers in Under‐11 in matches hit temporal, parietal, and occipital parts of the head.ConclusionHeading incidence was low in the youngest age group, whereas (predominantly five) Under‐15 males showed very high heading exposures in training. In assessment and regulation of heading burden, training sessions and individual heading behavior should specifically be addressed. Recommendations for heading the ball in practice should account for individual and age‐related differences.}}, author = {{Reeschke, Rebecca and Haase, Franziska Katharina and Dautzenberg, Lena and Krutsch, Werner and Reinsberger, Claus}}, issn = {{0905-7188}}, journal = {{Scandinavian Journal of Medicine & Science in Sports}}, keywords = {{Physical Therapy, Sports Therapy and Rehabilitation, Orthopedics and Sports Medicine}}, number = {{9}}, pages = {{1821--1830}}, publisher = {{Wiley}}, title = {{{Training matters: Heading incidence and characteristics in children's and youth football (soccer) players}}}, doi = {{10.1111/sms.14408}}, volume = {{33}}, year = {{2023}}, }