@article{25605,
  abstract     = {{The nonlinear process of second harmonic generation (SHG) in monolayer (1L) transition metal dichalcogenides (TMD), like WS2, strongly depends on the polarization state of the excitation light. By combination of plasmonic nanostructures with 1L-WS2 by transferring it onto a plasmonic nanoantenna array, a hybrid metasurface is realized impacting the polarization dependency of its SHG. Here, we investigate how plasmonic dipole resonances affect the process of SHG in plasmonic–TMD hybrid metasurfaces by nonlinear spectroscopy. We show that the polarization dependency is affected by the lattice structure of plasmonic nanoantenna arrays as well as by the relative orientation between the 1L-WS2 and the individual plasmonic nanoantennas. In addition, such hybrid metasurfaces show SHG in polarization states, where SHG is usually forbidden for either 1L-WS2 or plasmonic nanoantennas. By comparing the SHG in these channels with the SHG generated by the hybrid metasurface components, we detect an enhancement of the SHG signal by a factor of more than 40. Meanwhile, an attenuation of the SHG signal in usually allowed polarization states is observed. Our study provides valuable insight into hybrid systems where symmetries strongly affect the SHG and enable tailored SHG in 1L-WS2 for future applications.}},
  author       = {{Spreyer, Florian and Ruppert, Claudia and Georgi, Philip and Zentgraf, Thomas}},
  issn         = {{1936-0851}},
  journal      = {{ACS Nano}},
  number       = {{10}},
  pages        = {{16719--16728}},
  title        = {{{Influence of Plasmon Resonances and Symmetry Effects on Second Harmonic Generation in WS2–Plasmonic Hybrid Metasurfaces}}},
  doi          = {{10.1021/acsnano.1c06693}},
  volume       = {{15}},
  year         = {{2021}},
}

@inproceedings{20115,
  author       = {{Skitalinskaya, Gabriella and Klaff, Jonas and Wachsmuth, Henning}},
  booktitle    = {{Proceedings of the 16th Conference of the European Chapter of the Association for Computational Linguistics}},
  pages        = {{1718--1729}},
  title        = {{{Learning From Revisions: Quality Assessment of Claims in Argumentation at Scale}}},
  year         = {{2021}},
}

@inproceedings{20125,
  abstract     = {{Datacenter applications have different resource requirements from network and developing flow scheduling heuristics for every workload is practically infeasible. In this paper, we show that deep reinforcement learning (RL) can be used to efficiently learn flow scheduling policies for different workloads without manual feature engineering. Specifically, we present LFS, which learns to optimize a high-level performance objective, e.g., maximize the number of flow admissions while meeting the deadlines. The LFS scheduler is trained through deep RL to learn a scheduling policy on continuous online flow arrivals. The evaluation results show that the trained LFS scheduler admits 1.05x more flows than the greedy flow scheduling heuristics under varying network load.}},
  author       = {{Hasnain, Asif and Karl, Holger}},
  booktitle    = {{2021 IEEE 18th Annual Consumer Communications & Networking Conference (CCNC)}},
  keywords     = {{Flow scheduling, Deadlines, Reinforcement learning}},
  location     = {{Las Vegas, USA}},
  publisher    = {{IEEE Computer Society}},
  title        = {{{Learning Flow Scheduling}}},
  doi          = {{https://doi.org/10.1109/CCNC49032.2021.9369514}},
  year         = {{2021}},
}

@inproceedings{20244,
  author       = {{Gottschalk, Sebastian and Kirchhoff, Jonas and Engels, Gregor}},
  booktitle    = {{Business Modeling and Software Design}},
  editor       = {{Shishkov, Boris}},
  location     = {{Sofia}},
  title        = {{{Extending Business Model Development Tools with Consolidated Expert Knowledge }}},
  doi          = {{10.1007/978-3-030-79976-2_1}},
  year         = {{2021}},
}

@article{27970,
  author       = {{Barclay, AW and LSA, Augustin and Brighenti, F and Delport, E and Henry, CJ and Sievenpiper, JL and Usic, K and Yuexin, Y and Zurbau, A and TMS, Wolever and Astrup, A and Bulló, M and Buyken, Anette and Ceriello, A and Ellis, PR and Vanginkel, MA and CWC, Kendall and La Vecchia, C and Livesey, G and Poli, A and Riccardi, G and Salas-Salvadó, J and Trichopoulou, A and Bhaskaran, K and DJA, Jenkins and Willett, WC and Brand-Miller, JC}},
  issn         = {{2072-6643}},
  journal      = {{Nutrients}},
  number       = {{9}},
  title        = {{{Dietary Glycaemic Index Labelling: A Global Perspective.}}},
  doi          = {{10.3390/nu13093244}},
  volume       = {{13}},
  year         = {{2021}},
}

@article{27995,
  abstract     = {{<jats:title>Zusammenfassung</jats:title><jats:p>Studien zum Übergang von der Grund- in die weiterführende Schule gibt es zu zahlreichen Themen. Wie Grundschulen den Übergang zur weiterführenden Schule gestalten, wurde bislang jedoch kaum erforscht. Auf Basis des Forschungsstands werden relevante Maßnahmen identifiziert. In einer online-Befragung an 106 Grundschulen in Nordrhein-Westfalen wurde erfasst, inwiefern diese Maßnahmen tatsächlich umgesetzt werden und als wie relevant bzw. schwierig ihre Umsetzung erachtet wird. Die Ergebnisse werden verglichen mit Daten einer Studie, die 2002 an 71 Grundschulen durchgeführt wurde. Es zeigt sich eine hohe Stabilität der Gestaltung in den letzten 15 Jahren. Maßnahmen, die auf stufenübergreifender Kooperation basieren, werden heute zwar häufiger praktiziert, stehen aber weiterhin am Ende der Rangreihe.</jats:p>}},
  author       = {{van Ophuysen, Stefanie and Schürer, Sina and Bloh, Bea}},
  issn         = {{1865-3553}},
  journal      = {{Zeitschrift für Grundschulforschung}},
  pages        = {{149--167}},
  title        = {{{Die Gestaltung des Übergangs zur Weiterführenden Schule – Welche Maßnahmen wurden und werden an Grundschulen in NRW praktiziert?}}},
  doi          = {{10.1007/s42278-020-00101-8}},
  year         = {{2021}},
}

@inproceedings{27997,
  author       = {{Homt, Martina and Bloh, Bea}},
  location     = {{Mainz}},
  title        = {{{Die Perspektive von Referendar*innen auf Forschendes Lernen}}},
  year         = {{2021}},
}

@article{28017,
  abstract     = {{Processing aluminum alloys employing powder bed fusion of metals (PBF-LB/M) is becoming more attractive for the industry, especially if lightweight applications are needed. Unfortunately, high-strength aluminum alloys such as AA7075 are prone to hot cracking during PBF-LB/M, as well as welding. Both a large solidification range promoted by the alloying elements zinc and copper and a high thermal gradient accompanied with the manufacturing process conditions lead to or favor hot cracking. In the present study, a simple method for modifying the powder surface with titanium carbide nanoparticles (NPs) as a nucleating agent is aimed. The effect on the microstructure with different amounts of the nucleating agent is shown. For the aluminum alloy 7075 with 2.5 ma% titanium carbide nanoparticles, manufactured via PBF-LB/M, crack-free samples with a refined microstructure having no discernible melt pool boundaries and columnar grains are observed. After using a two-step ageing heat treatment, ultimate tensile strengths up to 465 MPa and an 8.9% elongation at break are achieved. Furthermore, it is demonstrated that not all nanoparticles used remain in the melt pool during PBF-LB/M.}},
  author       = {{Heiland, Steffen and Milkereit, Benjamin and Hoyer, Kay-Peter and Zhuravlev, Evgeny and Keßler, Olaf and Schaper, Mirko}},
  journal      = {{Materials}},
  keywords     = {{grain refinement, crack reduction, laser beam melting, aluminum alloy, titanium carbide, nanoparticle, PBF-LB/M}},
  title        = {{{Requirements for Processing High-Strength AlZnMgCu Alloys with PBF-LB/M to Achieve Crack-Free and Dense Parts}}},
  doi          = {{https://doi.org/10.3390/ma14237190}},
  year         = {{2021}},
}

@article{28099,
  abstract     = {{N-body methods are one of the essential algorithmic building blocks of high-performance and parallel computing. Previous research has shown promising performance for implementing n-body simulations with pairwise force calculations on FPGAs. However, to avoid challenges with accumulation and memory access patterns, the presented designs calculate each pair of forces twice, along with both force sums of the involved particles. Also, they require large problem instances with hundreds of thousands of particles to reach their respective peak performance, limiting the applicability for strong scaling scenarios. This work addresses both issues by presenting a novel FPGA design that uses each calculated force twice and overlaps data transfers and computations in a way that allows to reach peak performance even for small problem instances, outperforming previous single precision results even in double precision, and scaling linearly over multiple interconnected FPGAs. For a comparison across architectures, we provide an equally optimized CPU reference, which for large problems actually achieves higher peak performance per device, however, given the strong scaling advantages of the FPGA design, in parallel setups with few thousand particles per device, the FPGA platform achieves highest performance and power efficiency.}},
  author       = {{Menzel, Johannes and Plessl, Christian and Kenter, Tobias}},
  issn         = {{1936-7406}},
  journal      = {{ACM Transactions on Reconfigurable Technology and Systems}},
  number       = {{1}},
  pages        = {{1--30}},
  title        = {{{The Strong Scaling Advantage of FPGAs in HPC for N-body Simulations}}},
  doi          = {{10.1145/3491235}},
  volume       = {{15}},
  year         = {{2021}},
}

@article{28104,
  author       = {{Wende, Marc and Fischer, Florian and Kenig, Eugeny}},
  isbn         = {{978-88-95608-86-0}},
  journal      = {{Chemical Engineering Transactions}},
  pages        = {{697--702}},
  publisher    = {{AIDIC}},
  title        = {{{Numerical and Experimental Investigation of Zero-Gravity  Distillation Units }}},
  doi          = {{10.3303/CET2188116}},
  volume       = {{88}},
  year         = {{2021}},
}

@article{28198,
  author       = {{Steinrück, Hans-Georg}},
  issn         = {{2158-3226}},
  journal      = {{AIP Advances}},
  number       = {{11}},
  pages        = {{115119}},
  title        = {{{General relationship between salt concentration and x-ray absorption for binary electrolytes}}},
  doi          = {{10.1063/5.0072947}},
  volume       = {{11}},
  year         = {{2021}},
}

@book{28253,
  abstract     = {{In diesem Arbeitsbuch werden die Wege der 1959 in Westfalen geborenen und heute v.a. in Berlin lebenden Judith Kuckart zurückverfolgt – und zwar in den Gattungen Prosa, Theater, Hör-Feature und Film sowie im Bereich Tanz: In all diesen Gattungen hat die Künstlerin seit den 1980er Jahren ein umfassendes OEuvre entwickelt. Im vorliegenden Band werden erstmals alle ihre Schaffensbereiche thematisiert und in ihren Zusammenhängen betrachtet. Dies geschieht mittels wissenschaftlicher Essays, künstlerischer und persönlicher Kurzbeiträge sowie ausführlicher Gespräche mit Judith Kuckart. Ihr künstlerisches Leben und Werk wird auf diese Weise in seinen vielfältigen Aspekten erfasst und der wissenschaftlichen und kulturellen Öffentlichkeit präsentiert.}},
  editor       = {{Elit, Stefan and Canaris, Johanna}},
  isbn         = {{9783631843079}},
  keywords     = {{Erzählverfahren deutschsprachige Gegenwartsliteratur Tanztheater Westfalen Heimat Hörspiel}},
  pages        = {{358}},
  publisher    = {{Peter Lang}},
  title        = {{{Arbeitsbuch Judith Kuckart. Erzählen – Theater – Tanz}}},
  volume       = {{9}},
  year         = {{2021}},
}

@article{28349,
  abstract     = {{Das Auftreten der COVID-19-Pandemie stellt Fremdsprachenkurse vielerorts vor Herausforderungen. Unter Zuhilfenahme diverser digitaler Tools werden nicht nur Lernmaterialien online geteilt, sondern auch die Interaktion zwischen Lehrenden und Lernenden sowie der Lernenden untereinander in den virtuellen Raum verlagert. Qualitative Interviews mit den Beteiligten erfassen, wie diese mit den Herausforderungen videogestützten Sprachunterrichts umgehen und welche Strategien sie wählen, um Sprachenlernen zu ermöglichen. Die Ergebnisse zeigen auf, wo seitens der Kursorganisation und -durchführung Handlungsbedarf besteht.
-----
The rise of the COVID-19 pandemic challenges the teaching and learning of foreign languages at many institutions. The implementation of various digital tools aids not only the online sharing of learning materials, but also shifts teacher-learner and learner-learner interaction to the virtual space. Via qualitative interviews, this study examines how both teachers and learners handle the challenges of language instruction based on videoconferences, and what strategies they employ to enable language learning. The results highlight areas in need of improvement in terms of course organization and facilitation.}},
  author       = {{Drumm, Sandra and Müller, Mareike and Stenzel, Nadja}},
  issn         = {{2511-0853}},
  journal      = {{Informationen Deutsch als Fremdsprache}},
  keywords     = {{German language courses at university, interaction, digital space, language learning/teaching via videoconference}},
  number       = {{5}},
  pages        = {{496--515}},
  title        = {{{Digitale Räume geben und nehmen: Unterrichtsinteraktion in DSH-Kursen während der COVID-19-Pandemie}}},
  doi          = {{10.1515/infodaf-2021-0069}},
  volume       = {{48}},
  year         = {{2021}},
}

@inproceedings{28350,
  abstract     = {{In recent years, we observe an increasing amount of software with machine learning components being deployed. This poses the question of quality assurance for such components: how can we validate whether specified requirements are fulfilled by a machine learned software? Current testing and verification approaches either focus on a single requirement (e.g., fairness) or specialize on a single type of machine learning model (e.g., neural networks).
In this paper, we propose property-driven testing of machine learning models. Our approach MLCheck encompasses (1) a language for property specification, and (2) a technique for systematic test case generation. The specification language is comparable to property-based testing languages. Test case generation employs advanced verification technology for a systematic, property dependent construction of test suites, without additional user supplied generator functions. We evaluate MLCheck using requirements and data sets from three different application areas (software
discrimination, learning on knowledge graphs and security). Our evaluation shows that despite its generality MLCheck can even outperform specialised testing approaches while having a comparable runtime}},
  author       = {{Sharma, Arnab and Demir, Caglar and Ngonga Ngomo, Axel-Cyrille and Wehrheim, Heike}},
  booktitle    = {{Proceedings of the 20th IEEE International Conference on Machine Learning and Applications (ICMLA)}},
  publisher    = {{IEEE}},
  title        = {{{MLCHECK–Property-Driven Testing of Machine Learning Classifiers}}},
  year         = {{2021}},
}

@phdthesis{28371,
  author       = {{Drewel, Marvin}},
  isbn         = {{978-3-947647-16-3}},
  publisher    = {{Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn}},
  title        = {{{Systematik zum Einstieg in die Plattformökonomie}}},
  volume       = {{397}},
  year         = {{2021}},
}

@phdthesis{28372,
  author       = {{Frank, Maximilian}},
  isbn         = {{978-3-947647-17-0}},
  publisher    = {{Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn}},
  title        = {{{Systematik zur Planung des organisationalen Wandels zum Smart Service-Anbieter}}},
  volume       = {{398}},
  year         = {{2021}},
}

@phdthesis{28374,
  author       = {{Bretz, Lukas}},
  isbn         = {{978-3-947647-20-0}},
  publisher    = {{Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn}},
  title        = {{{Rahmenwerk zur Planung und Einführung von Systems Engineering und Model-Based Systems Engineering}}},
  volume       = {{401}},
  year         = {{2021}},
}

@inproceedings{28440,
  author       = {{Triebus, Marcel and Reitz, Alexander and Grydin, Olexandr and Grenz, Julian and Schneidt, Andreas and Erhardt, Rüdiger and Tröster, Thomas and Schaper, Mirko}},
  booktitle    = {{13th European LS-DYNA Conference 2021}},
  location     = {{Ulm}},
  title        = {{{Forming Simulation of Tailored Press Hardened Parts}}},
  year         = {{2021}},
}

@inproceedings{28443,
  author       = {{Rossel, Moritz Sebastian and Meschut, Gerson}},
  booktitle    = {{11. Fügetechnisches Gemeinschaftskolloquium}},
  title        = {{{Steigerung der Prognosegüte mechanischer Fügeprozesssimulationen durch den Einsatz einer fügespezifischen Reibmodellierung basierend auf einer experimentellen Parametrisierung}}},
  year         = {{2021}},
}

@inproceedings{28446,
  author       = {{Wehde, Janis and Bloh, Bea}},
  location     = {{Osnabrück}},
  title        = {{{Die Reflexion der eigenen Lehrtätigkeit von Studierenden in Praxisphasen durch Forschendes Lernen: Prädiktiver Einfluss subjektiver Normen im schulischen und universitären Kontext}}},
  year         = {{2021}},
}