TY - JOUR
AU - Tchomgue Simeu, Arnold
AU - Mahnken, Rolf
ID - 44890
IS - 1
JF - PAMM
KW - Electrical and Electronic Engineering
KW - Atomic and Molecular Physics
KW - and Optics
SN - 1617-7061
TI - Goal‐oriented adaptivity based on a model hierarchy of mean‐field and full‐field homogenization methods in elasto‐plasticity
VL - 22
ER -
TY - CHAP
AU - Dorogova, Elizaveta
ED - Oeming, Manfred
ED - Schmidt, Nora
ID - 45266
T2 - Hermeneutiken der Weisheit
TI - Weisheit und moralischer Intellektualismus im Koran aus intertextueller Perspektive
ER -
TY - JOUR
AU - Hanusch, Maximilian
ID - 34833
IS - 4
JF - Indagationes Mathematicae.
KW - Lie group actions and analytic 1-submanifolds
TI - Decompositions of Analytic 1-Manifolds
VL - 34
ER -
TY - GEN
AU - Dorogova, Elizaveta
ID - 45267
T2 - Theologie und Glaube
TI - Rezension zu Martin Breul/Klaus Viertbauer (Hg.), Der Glaube und seine Gründe, Tübingen: Mohr Siebeck 2022, brosch.
ER -
TY - BOOK
AU - Szczepaniak-Kozak, Anna
AU - Farrell, Angela
AU - Ballweg, Sandra
AU - Daase, Andrea
AU - Wąsikiewicz-Firlej, Emilia
AU - Masterson, Mary
ID - 45279
SN - 9783847115632
TI - Promoting multilingual practices in school and home environments
ER -
TY - CHAP
AU - Kulgemeyer, Christoph
AU - Sterzing, Fabian
AU - Hörnlein, Madeleine
ED - Wilhelm, Thomas
ID - 45277
T2 - Digital Physik unterrichten. Grundlagen, Impulse, Perspektiven
TI - Aus Erklärvideos lernen
ER -
TY - JOUR
AB - (1) This work answers the question of whether and to what extent there is a significant difference in mechanical properties when different additive manufacturing processes are applied to the material 1.2709. The Laser-Powder-Bed-Fusion (L-PBF) and Laser-Metal-Deposition (LMD) processes are considered, as they differ fundamentally in the way a part is manufactured. (2) Known process parameters for low-porosity parts were used to fabricate tensile strength specimens. Half of the specimens were heat-treated, and all specimens were tested for mechanical properties in a quasi-static tensile test. In addition, the material hardness was determined. (3) It was found that, firstly, heat treatment resulted in a sharp increase in mechanical properties such as hardness, elastic modulus, yield strength and ultimate strength. In addition to the increase in these properties, the elongation at break also decreases significantly after heat treatment. The choice of process, on the other hand, does not give either process a clear advantage in terms of mechanical properties but shows that it is necessary to consider the essential mechanical properties for a desired application.
AU - Gnaase, Stefan
AU - Niggemeyer, Dennis
AU - Lehnert, Dennis
AU - Bödger, Christian
AU - Tröster, Thomas
ID - 37200
IS - 2
JF - Crystals
KW - Inorganic Chemistry
KW - Condensed Matter Physics
KW - General Materials Science
KW - General Chemical Engineering
SN - 2073-4352
TI - Comparative Study of the Influence of Heat Treatment and Additive Manufacturing Process (LMD & L-PBF) on the Mechanical Properties of Specimens Manufactured from 1.2709
VL - 13
ER -
TY - JOUR
AB - Many applications are driven by Machine Learning (ML) today. While complex ML models lead to an accurate prediction, their inner decision-making is obfuscated. However, especially for high-stakes decisions, interpretability and explainability of the model are necessary. Therefore, we develop a holistic interpretability and explainability framework (HIEF) to objectively describe and evaluate an intelligent system’s explainable AI (XAI) capacities. This guides data scientists to create more transparent models. To evaluate our framework, we analyse 50 real estate appraisal papers to ensure the robustness of HIEF. Additionally, we identify six typical types of intelligent systems, so-called archetypes, which range from explanatory to predictive, and demonstrate how researchers can use the framework to identify blind-spot topics in their domain. Finally, regarding comprehensiveness, we used a random sample of six intelligent systems and conducted an applicability check to provide external validity.
AU - Kucklick, Jan-Peter
ID - 45299
JF - Journal of Decision Systems
KW - Explainable AI (XAI)
KW - machine learning
KW - interpretability
KW - real estate appraisal
KW - framework
KW - taxonomy
SN - 1246-0125
TI - HIEF: a holistic interpretability and explainability framework
ER -
TY - CHAP
AU - Kamcili-Yildiz, Naciye
ED - Yaşar , Sarıkaya
ED - Rothgangel, Martin
ED - Grün, Déborah Kathleen
ED - Soyhun, Mehmet
ID - 42087
T2 - Hadithdidaktik im Diskurs
TI - Sprachsensibles Arbeiten mit Hadithen im Islamischen Religionsunterricht
VL - 6
ER -
TY - CHAP
AU - Kamcili-Yildiz, Naciye
AU - Tautz, Monika
ED - Badawia, Tarek
ED - Topalovic, Said
ID - 42095
T2 - Islamunterricht im Diskurs. Religionspädagogische und fachdidaktische Ansätze
TI - Was heißt religiöses gebildet? Konzepte religiöser Bildung von islamischen Religionspädagogen
ER -
TY - GEN
AU - Aghaei Abrandabadi, Seyed Ali
AU - Bahrololoumi, Faranak
AU - Hajdas, Irka
AU - Jafarian, Rasul
AU - Kordavani, Lili
AU - Marx, Michael
ID - 42223
TI - Radiocarbon Dating Of Manuscripts Kept in the Central Library of the University of Tehran
ER -
TY - CHAP
AU - Aghaei Abrandabadi, Seyed Ali
ED - Blecher, Joel
ED - Brinkmann, Stefanie
ID - 42222
T2 - Hadith Commentary: Continuity and Change
TI - The Hermeneutics of al-Sharīf al-Murtaḍā (d. 436/1044) in the interpretation of Akhbār al-Āḥād in his Kitāb al-Amālī
ER -
TY - BOOK
AU - Hartmann, Alexandra
ID - 36038
SN - 978-3-031-20946-8
TI - The Black Humanist Tradition in Anti-Racist Literature: A Fragile Hope
ER -
TY - BOOK
AU - Teichert, Jeannine
ID - 45310
TI - Wie digitale Medien die kommunikative Aushandlung von Freundschaften verändern
ER -
TY - JOUR
AU - Teichert, Jeannine
AU - Meister., D.M.
ID - 45311
JF - MedienPädagogik
TI - Mediale Identitätsaushandlungen deutscher MigrantInnen im Zuge des Brexit
ER -
TY - CONF
AU - Karakaya, Kadiray
AU - Bodden, Eric
ID - 45312
T2 - 2023 IEEE Conference on Software Testing, Verification and Validation (ICST)
TI - Two Sparsification Strategies for Accelerating Demand-Driven Pointer Analysis
ER -
TY - GEN
AU - Koch, Angelina
ID - 43375
TI - Privacy-Preserving Collection and Evaluation of Log Files
ER -
TY - GEN
AU - Kempkes, Jens Peter
AU - Kreuzhage, Katharina
AU - Kundisch, Dennis
AU - Seutter, Janina
AU - Weskamp, Christoph
ID - 45364
TI - Digitale Transformation im Theater – Mittels Besucherforschung und Entscheidungsunterstützung zur besseren Angebotsgestaltung
VL - 172
ER -
TY - GEN
AB - Aufgrund der Leichtbauweise von Fahrzeugkarosserien werden konventionelle Stahlgüten durch ultrahöchstfeste Stahlwerkstoffe ersetzt. Die hohe Festigkeit dieser Werkstoffe stellt eine Herausforderung für das mechanische Fügen dar. Weil diese Stahlwerkstoffe zunehmend in erhöhter Dicke eingesetzt werden, wird die Leistungsfähigkeit konventioneller Halbhohlstanzniete überschritten. Im Rahmen des Forschungsvorhabens wurde ein Stanzniet erarbeitet, welcher eine Erweiterung des Einsatzbereichs des Halbhohlstanznietens auf stempelseitige Fügeteile aus höchstfesten und ultrahöchstfesten Stahlwerkstoffen bei großer Materialdicke ermöglicht. Zunächst wurden Referenzverbindungen mit handelsüblichen Stanznieten erstellt und analysiert. Durch die simulationsgestützte Ermittlung der Spannungs- und Dehnungsverhältnisse im Stanzniet wurden Ansätze für die Modifizierung der Stanzniete erarbeitet. Ebenso wurde der Einfluss der einzelnen Geometrieparameter des Stanzniets auf die Verformung des Stanzniets und die Verbindungsausbildung untersucht. Parallel dazu, wurden die mechanischen Eigenschaften potenzieller Stanznietwerkstoffe charakterisiert und eine angepasste Wärmebehandlungsstrategie erarbeitet. Durch die Modifizierung der Werkstofflegierung und der Wärmebehandlung kann eine Erhöhung der Festigkeit des Stanznietwerkstoffs um ca. 20 % gegenüber der bisher üblichen Härteklasse H6 erreicht werden. Daher kann eine Stanznietgeometrie mit einem bisher üblichen Nenndurchmesser von 5,5 mm verwendet werden. Die neuen Stanzniete wurden experimentell in einem zweistufigen Kaltumformprozess hergestellt. Abschließend wurde die erarbeitete Lösung basierend auf experimentellen Versuchen analysiert.
AU - Uhe, Benedikt
AU - Meschut, Gerson
ID - 45370
TI - Lösungsstrategien für das Halbhohlstanznieten von höchstfesten und ultrahöchstfesten Stählen mit Aluminiumwerkstoffen
VL - 592
ER -
TY - CHAP
AU - Weiler, David
AU - Burde, Jan-Philipp
AU - Große-Heilmann, Rike Isabel
AU - Lachner, Andreas
AU - Riese, Josef
AU - Schubatzky, Thomas
ED - Meier, Monique
ED - Greefrath, Gilbert
ED - Hammann, Marcus
ED - Wodzinski, Rita
ED - Ziepprecht, Kathrin
ID - 45171
SN - 2524-8677
T2 - Lehr-Lern-Labore und Digitalisierung
TI - Förderung von digitalisierungsbezogenen Kompetenzen von angehenden Physiklehrkräften mit dem SQD-Modell im Projekt DiKoLeP
ER -
TY - JOUR
AB - Abstract
This paper investigates the price impact of the fuel discount in Germany, which was introduced between June and August 2022 to partially compensate increased energy costs. Using the augmented synthetic control method (ASCM) to construct the counterfactual, we provide quantitative evidence to the heated debate concerning the impact of this policy tool and find the fuel discount to have decreased consumer prices of petrol (diesel) by at least 0.30 euro per litre (0.10 euro per litre) on average. The results are robust to various sensitivity checks. Thus, oil companies and petrol stations decreased prices for consumers and passed on about 85 % (65 %) of the discount in case of petrol (diesel). Moreover, we do not find signs of excessive price increases in anticipation of the fuel discount.
AU - Seiler, Volker
AU - Stöckmann, Nico
ID - 45401
JF - German Economic Review
KW - Economics and Econometrics
SN - 1465-6485
TI - The Impact of the German Fuel Discount on Prices at the Petrol Pump
ER -
TY - CONF
AU - Kulgemeyer, Christoph
AU - Sterzing, Fabian
AU - Hörnlein, Madeleine
ED - Van Vorst, Helena
ID - 45398
TI - Von der "Shallowing Hypothese" zur "Illusion of Understanding" -wie wirken Erklärvideos und Lehrbuchtexte auf Wissen und Verstehensillusion?
ER -
TY - CONF
AU - Hörnlein, Madeleine
AU - Kulgemeyer, Christoph
ED - Van Vorst, Helena
ID - 45399
TI - "Aus Erklärvideos lernt man nur oberflächlich" - oder erwirbt man auch Konzeptwissen?
ER -
TY - CHAP
AU - Kamcili-Yildiz, Naciye
ED - Körs, Anna
ID - 45439
T2 - Islamischer Religionsunterricht in Deutschland
TI - Glaubende Grundhaltung als Zugang zum IslamTheologische Kompetenzen von islamischen Religionslehrkräften
ER -
TY - JOUR
AU - Althaus, Maike
AU - Müller, Stefanie Jutta Marianne
AU - Kundisch, Dennis
ID - 45444
JF - International Journal of Cultural Policy
TI - What Price Culture? – A Taxonomy of the Admission Pricing Policy at Museums
ER -
TY - JOUR
AB - The current investigation shows the feasibility of 316L steel powder production via three different argon gas atomisation routes (closed coupled atomisation, free fall atomisation with and without hot gas), along with subsequent sample production by laser powder bed fusion (PBF-LB). Here, a mixture of pure Fe and atomised 316L steel powder is used for PBF-LB to induce a chemical composition gradient in the microstructure. Optical microscopy and μ-CT investigations proved that the samples processed by PBF-LB exhibit very little porosity. Combined EBSD-EDS measurements show the chemical composition gradient leading to the formation of a local fcc-structure. Upon heat treatment (1100 °C, 14 h), the chemical composition is homogeneous throughout the microstructure. A moderate decrease (1060 to 985 MPa) in the sample’s ultimate tensile strength (UTS) is observed after heat treatment. However, the total elongation of the as-built and heat-treated samples remains the same (≈22%). Similarly, a slight decrease in the hardness from 341 to 307 HV1 is observed upon heat treatment.
AU - Pramanik, Sudipta
AU - Andreiev, Anatolii
AU - Hoyer, Kay-Peter
AU - Krüger, Jan Tobias
AU - Hengsbach, Florian
AU - Kircheis, Alexander
AU - Zhao, Weiyu
AU - Fischer-Bühner, Jörg
AU - Schaper, Mirko
ID - 41492
IS - 1
JF - Powders
SN - 2674-0516
TI - Powder Production via Atomisation and Subsequent Laser Powder Bed Fusion Processing of Fe+316L Steel Hybrid Alloy
VL - 2
ER -
TY - JOUR
AB - This paper reveals the 3D character of the intermetallic layer at the aluminum–steel interface which pops
up above the original sample surface during annealing. Popping out of the intermetallics was proven using
atomic force microscopy. The phase expands out of the plane due to the exothermic formation of the Al5Fe2
phase and the feasibility of surface diffusion. Milling by a focused ion beam enabled the comparison of the
chemical composition of the surface layer with the bulk interface, showing no difference. The growth direction
is both towards aluminum and steel — the main diffusion flux is from aluminum towards steel, and the new
intermetallic phase emerges at the steel side. The shortage of Al atoms causes a shift of the intermetallic as a
whole towards aluminum.
AU - Šlapáková, Michaela
AU - Kihoulou, Barbora
AU - Veselý, Jozef
AU - Minárik, Peter
AU - Fekete, Klaudia
AU - Knapek, Michal
AU - Králík, Rostislav
AU - Grydin, Olexandr
AU - Stolbchenko, Mykhailo
AU - Schaper, Mirko
ID - 43441
JF - Vacuum
KW - Al-steel clad
KW - twin-roll casting
KW - 3D characterization
KW - atomic force microscopy
KW - diffusion direction
KW - surface growth
SN - 0042-207X
TI - 3D-structure of intermetallic interface layer in Al–steel clad material
VL - 212
ER -
TY - CHAP
AU - Haase, Michael
AU - Bieber, Maximilian
AU - Tasche, Frederik
AU - Schaper, Mirko
AU - Hoyer, Kay-Peter
AU - Ponik, Bernd
AU - Magyar, Balázs
ED - Kynast, Michael
ED - Eichmann, Michael
ED - Witt, Gerd
ID - 45360
SN - 978-3-446-47941-8
T2 - Proceedings of the 19th Rapid.Tech 3D Conference Erfurt, Germany, 9–11 May 2023
TI - Umsetzung einer optimierten Oberflächenschlitzung zur Wirbelstromverlustreduktion auf der Oberfläche eines additiv gefertigten Permanentmagnet-Rotors
ER -
TY - JOUR
AU - Andreiev, Anatolii
AU - Hoyer, Kay-Peter
AU - Hengsbach, Florian
AU - Haase, Michael
AU - Tasche, Lennart
AU - Duschik, Kristina
AU - Schaper, Mirko
ID - 44078
JF - Journal of Materials Processing Technology
KW - Industrial and Manufacturing Engineering
KW - Metals and Alloys
KW - Computer Science Applications
KW - Modeling and Simulation
KW - Ceramics and Composites
SN - 0924-0136
TI - Powder bed fusion of soft-magnetic iron-based alloys with high silicon content
VL - 317
ER -
TY - GEN
AU - Laux, Florian
AU - Haff, André
AU - Kundisch, Dennis
ID - 45365
TI - Crowdwork in the Age of Algorithms – How Algorithmic Requesters affect the Meaningfulness of Crowdwork
ER -
TY - GEN
AU - Schroeter-Wittke, Harald
ID - 45452
T2 - Jahrbuch für Evangelische Kirchengeschichte des Rheinlandes
TI - Heinrich A. Meyer-Reichenau: "Der kecke Griff nach der Bibel und die davongetragene Beute". Studien zur Predigt und Theologie des Bremer Pfarrers Gottfried Menken (1768-1831)
VL - 72
ER -
TY - GEN
AU - Schroeter-Wittke, Harald
ID - 45453
T2 - Jahrbuch für Evangelische Kirchengeschichte des Rheinlandes
TI - Katharina Herrmann: Gesungene Katechese. Kommunikation durch Popularisierung. Kulturelle Repräsentation eines engagierten protestantischen Christentums im Neuen Geistlichen Lied
VL - 72
ER -
TY - GEN
AU - Schroeter-Wittke, Harald
ID - 45454
T2 - Zeitschrift für Pädagogik und Theologie
TI - Thorsten Knauth/Rainer Möller/Annebelle Pithan (Hg.), Inklusive Religionspädagogik der Vielfalt. Konzeptionelle Grundlagen und didaktische Konkretionen. Münster/New York 2020
VL - 75
ER -
TY - GEN
AU - Schroeter-Wittke, Harald
ID - 45451
T2 - Jahrbuch für Evangelische Kirchengeschichte des Rheinlandes
TI - Volker Leppin: Repräsentation und Reenactment. Spätmittelalterliche Frömmigkeit verstehen
VL - 72
ER -
TY - CHAP
AU - Kruse, Iris
AU - Kanning, Julian
ED - Becker, Karina
ED - Hofmann, Michael
ID - 42034
SN - 978-3-8260-7785-2
T2 - Rassismussensibler Literaturunterricht. Grundlagen, Dimensionen, Herausforderungen, Möglichkeiten.
TI - „Dass so was halt nie, nie wieder passiert…“ – Zum didaktisch perspektivierten rassismuskritischen Potenzial von Holocaust-Bilderbüchern zur Erinnerungsfigur Anne Frank.
ER -
TY - JOUR
AU - Claes, Leander
AU - Feldmann, Nadine
AU - Schulze, Veronika
AU - Meihost, Lars
AU - Kuhlmann, Henrik
AU - Jurgelucks, Benjamin
AU - Walther, Andrea
AU - Henning, Bernd
ID - 45445
IS - 1
JF - Journal of Sensors and Sensor Systems
TI - Inverse procedure for measuring piezoelectric material parameters using a single multi-electrode sample
VL - 12
ER -
TY - GEN
AU - Claes, Leander
AU - Meihost, Lars
AU - Jurgelucks, Benjamin
ID - 45455
TI - Inverse procedure for the identification of piezoelectric material parameters supported by dense neural networks
ER -
TY - GEN
AU - Jurgelucks, Benjamin
ID - 45456
TI - Parameter Identification of Piezoelectrics improved by Neural Networks
ER -
TY - GEN
AU - Kuess, Raphael
ID - 45457
TI - Parameter identification in piezoelectricity based on all-at-once and reduced regularization
ER -
TY - CHAP
AU - Niemann, Sven
ED - Papenbrock, Martin
ED - Tophinke, Doris
ID - 44170
T2 - Kunst und Politik. Jahrbuch der Guernica-Gesellschaft. Schwerpunkt: Politisches Graffiti.
TI - Bomb the System! Politische Pieces als Partizipationspraktik im öffentlichen Raum
VL - 24/2022
ER -
TY - JOUR
AB - AbstractGraffiti 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.
AU - Sherif, Mohamed Ahmed
AU - da Silva, Ana Alexandra Morim
AU - Pestryakova, Svetlana
AU - Ahmed, Abdullah Fathi
AU - Niemann, Sven
AU - Ngomo, Axel-Cyrille Ngonga
ID - 45484
IS - 1
JF - Scientific Data
KW - Library and Information Sciences
KW - Statistics
KW - Probability and Uncertainty
KW - Computer Science Applications
KW - Education
KW - Information Systems
KW - Statistics and Probability
SN - 2052-4463
TI - IngridKG: A FAIR Knowledge Graph of Graffiti
VL - 10
ER -
TY - JOUR
AU - Kruse, Stephan
AU - Serino, Laura
AU - Folge, Patrick Fabian
AU - Echeverria Oviedo, Dana
AU - Bhattacharjee, Abhinandan
AU - Stefszky, Michael
AU - Scheytt, J. Christoph
AU - Brecht, Benjamin
AU - Silberhorn, Christine
ID - 45485
IS - 14
JF - IEEE Photonics Technology Letters
KW - Electrical and Electronic Engineering
KW - Atomic and Molecular Physics
KW - and Optics
KW - Electronic
KW - Optical and Magnetic Materials
SN - 1041-1135
TI - A Pulsed Lidar System With Ultimate Quantum Range Accuracy
VL - 35
ER -
TY - CHAP
AU - Niemann, Sven
ID - 45483
T2 - Document | Archive | Disseminate Graffiti-Scapes
TI - INGRID—Archiving Graffiti in Germany
ER -
TY - GEN
AB - We present a novel method for high-order phase reduction in networks of
weakly coupled oscillators and, more generally, perturbations of reducible
normally hyperbolic (quasi-)periodic tori. Our method works by computing an
asymptotic expansion for an embedding of the perturbed invariant torus, as well
as for the reduced phase dynamics in local coordinates. Both can be determined
to arbitrary degrees of accuracy, and we show that the phase dynamics may
directly be obtained in normal form. We apply the method to predict remote
synchronisation in a chain of coupled Stuart-Landau oscillators.
AU - von der Gracht, Sören
AU - Nijholt, Eddie
AU - Rink, Bob
ID - 45498
T2 - arXiv:2306.03320
TI - A parametrisation method for high-order phase reduction in coupled oscillator networks
ER -
TY - JOUR
AU - Schryen, Guido
AU - Sperling, Martina
ID - 44361
IS - September
JF - Computers & Operations Research
TI - Literature Reviews in Operations Research: A New Taxonomy and a Meta Review
VL - 157
ER -
TY - JOUR
AU - Rossel, Moritz Sebastian
AU - Meschut, Gerson
ID - 45557
JF - BLECHE+ROHRE+PROFILE
TI - Prozesskettensimulation für das Clinchen mit beweglicher Matrize
VL - 02/2023
ER -
TY - DATA
AU - Ali, Manzoor
AU - Saleem, Muhammad
AU - Moussallem, Diego
AU - Sherif, Mohamed
AU - Ngonga Ngomo, Axel-Cyrille
ID - 45560
TI - RELD: A Knowledge Graph of Relation Extraction Datasets
ER -
TY - JOUR
AB - In this work, we discuss the possibility of improving charge neutralization in near ambient pressure X-ray photoelectron spectroscopy by co-irradiating the sample with He I photons of 21.2 eV. This UV-enhanced neutralization of charges is a variation of the so-called environmental charge compensation, which uses the electrons produced by the photoionization of the ambient gas to neutralize the positive charges built at the sample surface. Adding an additional ionization source generates more charges at the sample but also larger amounts of electrons available for neutralization. The final surface charge equilibrium depends on different aspects of the experiment, such as the sample composition and geometry, the total ionization cross sections of the gas compared to the surface materials, the gas used, the luminosity and spot size of the sources used for photoionization, and the energy of the electrons present in the gas phase. Here we illustrate the efficiency of the UV-enhanced neutralization using three different dielectric samples with different geometries (a porous SiO2 monolith with an irregular surface, a flat mica sample, and a thin SiO2 film deposited onto a Si substrate), different X-ray spot sizes, and two different gases (N2 and Ar). The effect of biasing on the efficiency of the sample surface to attract electrons produced in the gas phase is also discussed.
AU - Arcos, Teresa de los
AU - Müller, Hendrik
AU - Weinberger, Christian
AU - Grundmeier, Guido
ID - 45575
IS - 264
JF - Journal of Electron Spectroscopy and Related Phenomena
KW - XPS
KW - Near ambient pressure
KW - Environmental charge compensation
KW - UV
SN - 0368-2048
TI - UV-enhanced environmental charge compensation in near ambient pressure XPS
VL - 264
ER -
TY - CONF
AU - Buschütter, David
AU - Zeller, Jannis
AU - Oltmanns, Stefan
AU - Borowski, Andreas
AU - Kulgemeyer, Christoph
AU - Riese, Josef
AU - Vogelsang, Christoph
ED - van Vorst, Helena
ID - 45567
T2 - Lernen, Lehren und Forschen in einer digital geprägten Welt Gesellschaft für Didaktik der Chemie und Physik Jahrestagung in Aachen 2022
TI - Forschungsdatenmanagement erleichtern durch relationale Datenbanken: Ein Datenmodell für naturwissenschaftsdidaktische Forschung
ER -
TY - CONF
AU - Zwick, Linda
AU - Webersen, Yvonne
AU - Wodzinski, Rita
ED - van Vorst, Helena
ID - 45576
T2 - Lernen, Lehren und Forschen in einer digital geprägten Welt Gesellschaft für Didaktik der Chemie und Physik Jahrestagung in Aachen 2022
TI - Entwicklung von Schülervorstellungen zu NOS & NOSI im Physikunterricht
ER -
TY - CONF
AU - Webersen, Yvonne
ED - van Vorst, Helena
ID - 45577
T2 - Lernen, Lehren und Forschen in einer digital geprägten Welt Gesellschaft für Didaktik der Chemie und Physik Jahrestagung in Aachen 2022
TI - Entwicklung und Evaluation einer NdN-Unterrichtsreihe zur Unterstützung von Lernpfaden
ER -
TY - JOUR
AB - AbstractBased on a literature review of studies on teachers’ professional competence and related assessment tools, this paper introduces a model of teacher education assessment. It is influenced by Miller’s (1990) framework of assessment in medical education and includes, among other aspects, performance assessments. This model is used to understand the potential effects of transferring assessment tools into a digital format with assessment feedback. Five examples for such a transfer will be discussed: three methods for various aspects of communication, a test for pedagogical content knowledge, and a test for content knowledge. All five are established instruments well-described in terms of validity. All five have recently been transferred into a digital format. The analysis of this transfer also reveals a potentially harmful effect of digital assessment. The closer an assessment instrument is to assessing action-related parts of professional competence, the more authenticity is required; however, digitisation tends to decrease this authenticity. This suggests that an increasing number of digital assessment tools in teacher education might result in an even more dominant focus on knowledge tests, ignoring other parts of professional competence. This article highlights the role of authenticity in validity and discusses the most suitable assessment format to address various parts of professional competence. It ends by highlighting the lessons learned from the transfer of assessment instruments into a digital format that other academic disciplines might find interesting.
AU - Kulgemeyer, Christoph
AU - Riese, Josef
AU - Vogelsang, Christoph
AU - Buschhüter, David
AU - Borowski, Andreas
AU - Weißbach, Anna
AU - Jordans, Melanie
AU - Reinhold, Peter
AU - Schecker, Horst
ID - 45562
JF - Zeitschrift für Erziehungswissenschaft
KW - Education
SN - 1434-663X
TI - How authenticity impacts validity: Developing a model of teacher education assessment and exploring the effects of the digitisation of assessment methods Über Validität und Authentizität: Effekte des Transfers von Testinstrumenten in ein digitales Format auf die erhobenen Aspekte der professionellen Handlungskompetenz
ER -
TY - CONF
AU - Große-Heilmann, Rike Isabel
AU - Burde, Jan-Philipp
AU - Riese, Josef
AU - Schubatzky, Thomas
AU - Weiler, David
ED - van Vorst, Helena
ID - 45563
T2 - Lernen, Lehren und Forschen in einer digital geprägten Welt Gesellschaft für Didaktik der Chemie und Physik Jahrestagung in Aachen 2022
TI - Erwerb und Messung fachdidaktischen Wissens zum Einsatz digitaler Medien
ER -
TY - CONF
AU - Jordans, Melanie
AU - Riese, Josef
ED - van Vorst, Helena
ID - 45566
T2 - Lernen, Lehren und Forschen in einer digital geprägten Welt Gesellschaft für Didaktik der Chemie und Physik Jahrestagung in Aachen 2022
TI - Unterrichtsplanung mit sinnvoller Einbettung digitaler Medien im PU
ER -
TY - CONF
AU - Zeller, Jannis
AU - Riese, Josef
ED - van Vorst, Helena
ID - 45565
T2 - Lernen, Lehren und Forschen in einer digital geprägten Welt Gesellschaft für Didaktik der Chemie und Physik Jahrestagung in Aachen 2022
TI - Datenbasierte Fähigkeitsprofile im Physikdidaktischen Wissen
ER -
TY - THES
AU - Castenow, Jannik
ID - 45580
TI - Local Protocols for Contracting and Expanding Robot Formation Problems
ER -
TY - THES
AU - Knollmann, Till
ID - 45579
TI - Online Algorithms for Allocating Heterogeneous Resources
ER -
TY - JOUR
AB - Dielectric metasurfaces provide a unique platform for efficient harmonic generation and optical wavefront manipulation at the nanoscale. Tailoring phase and amplitude of a nonlinearly generated wave with a high emission efficiency using resonance-based metasurfaces is a challenging task that often requires state-of-the-art numerical methods. Here, we propose a simple yet effective approach combining a sampling method with a Monte Carlo approach to design the third-harmonic wavefront generated by all-dielectric metasurfaces composed of elliptical silicon nanodisks. Using this approach, we theoretically demonstrate the full nonlinear 2π phase control with a uniform and highest possible amplitude in the considered parameter space, allowing us to design metasurfaces operating as third harmonic beam deflectors capable of steering light into a desired direction with high emission efficiency. The TH beam deflection with a record calculated average conversion efficiency of 1.2 × 10–1 W–2 is achieved. We anticipate that the proposed approach will be widely applied as alternative to commonly used optimization algorithms with higher complexity and implementation effort for the design of metasurfaces with other holographic functionalities.
AU - Hähnel, David
AU - Förstner, Jens
AU - Myroshnychenko, Viktor
ID - 45596
JF - ACS Photonics
KW - tet_topic_meta
SN - 2330-4022
TI - Efficient Modeling and Tailoring of Nonlinear Wavefronts in Dielectric Metasurfaces
ER -
TY - GEN
AU - Schroeter-Wittke, Harald
ID - 45603
IS - 2
T2 - Praktische Theologie
TI - Gnaden-Gegenwart - Bach als Praktischer Theologe. Zum Amtsantritt des Thomaskantors vor 300 Jahren. Klaus Hock / Thomas Klie (Hg.): Bachzitate, Bielefeld 2021 - Ingo Bredenbach / Volker Leppin / Christoph Schwöbel (Hg.): Bach unter Theologen, Tübingen 2022
VL - 58
ER -
TY - JOUR
AU - FitzGerald, Clare
AU - Fraser, Alec
AU - Kimmitt, Jonathan
AU - Knoll, Lisa
AU - Williams, James
ID - 45655
IS - 3
JF - International Public Management Journal
KW - Public Administration
KW - Business and International Management
SN - 1096-7494
TI - Outcomes-based contracting and public management reform: Lessons from a decade of experimentation
VL - 26
ER -
TY - CONF
AB - The nonlinear optical response of an ensemble of semiconductor quantum dots is analyzed by wave-mixing processes, where we focus on four-wave mixing with two incident pulses. Wave-mixing experiments are often described with semiclassical models, where the light is modeled classically and the material quantum mechanically. Here, however, we use a fully quantized model, where the light is given by a quantum state of light. Quantum light involves more degrees of freedom than classical light as e.g., its photon statistics and quantum correlations, which is a promising resource for quantum devices, such as quantum memories. The light-matter interaction is treated with a Jaynes-Cummings type model and the quantum field is given by a single mode since the quantum dots are embedded in a microcavity. We present numerical simulations of the four-wave-mixing response of a homogeneous system for pulse sequences and find a significant dependence of the result on the photon statistics of the incident pulses. The model constitutes a problem with a large state space which arises from the frequency distribution of the transition energies of the inhomogeneously broadened quantum dot ensemble that is coupled with a quantum light mode. Here we approximate the dynamics by summing over individual quantum dot-microcavity systems. Photon echoes arising from the excitation with different quantum states of light are simulated and compared.
AU - Rose, Hendrik
AU - Grisard, S.
AU - Trifonov, A. V.
AU - Reichhardt, R.
AU - Reichelt, Matthias
AU - Bayer, M.
AU - Akimov, I. A.
AU - Meier, Torsten
ID - 43192
T2 - Ultrafast Phenomena and Nanophotonics XXVII
TI - Theoretical analysis of four-wave mixing on semiconductor quantum dot ensembles with quantum light
VL - 12419
ER -
TY - CHAP
AU - Freymuth, Nina
ED - Balz, HHans-Jürgen
ED - Huneke, Annika
ED - Kuhlmann, Carola
ED - Römisch, Kathrin
ID - 45606
T2 - Diskriminierungsprozesse und Teilhabeperspektiven - Herausforderungen für die Praxis der Inklusion. Ausgewählte Master-Thesen 2018-2022 des Masterstudiengangs "Soziale Inklusion: Gesundheit und Bildung" der Evangelischen Hochschule Rheinland-Westfalen-Lippe
TI - Alternative für alle? Inklusionsspezifische Analyse der AfD und ihrer Wähler*innen
ER -
TY - CONF
AU - Badran, Abdalrhman
AU - Sadeghi-Kohan, Somayeh
AU - Reimer, Jan Dennis
AU - Hellebrand, Sybille
ID - 41875
T2 - 28th IEEE European Test Symposium (ETS'23), May 2023
TI - Approximate Computing: Balancing Performance, Power, Reliability, and Safety
ER -
TY - JOUR
AU - Dieter, Peter
AU - Caron, Matthew
AU - Schryen, Guido
ID - 44383
IS - 1
JF - European Journal of Operational Research (EJOR)
TI - Integrating driver behavior into last-mile delivery routing: Combining machine learning and optimization in a hybrid decision support framework
VL - 311
ER -
TY - GEN
AU - Frick, Bernd
AU - Spiess Bru, Clarissa
AU - Kaimann, Daniel
ID - 45666
TI - Are Women (Really) More Lenient? Gender Differences in Expert Evaluations
VL - 106
ER -
TY - GEN
AU - Kaimann, Daniel
AU - Spiess Bru, Clarissa
ID - 45665
TI - Sounds too Feminine? Brand Gender and The Impact on Professional Critics
VL - 107
ER -
TY - THES
AU - Beck-Werz, Lisa
ID - 45669
TI - Essays on Choices and Behavior in Competitive Situations
ER -
TY - JOUR
AU - Meier, Jana
AU - Janzen, Thomas
AU - Wotschel, Philipp
AU - Vogelsang, Christoph
ID - 45672
JF - die hochschullehre
TI - Rollenspielbasierte Simulationen als Übungs- und Prüfungsformate im Lehramtsstudium. Eine explorative Studie zu Erfahrungen und Einschätzungen aus Studierendensicht.
VL - 9
ER -
TY - JOUR
AU - Blachut, Alisa
AU - Topalović, Elvira
AU - Uhrig, Sissy
ID - 42329
JF - Der Deutschunterricht
TI - Grammatik in deutschen und niederländischen DaF-Lehrbüchern: Synergien für den Deutschunterricht
VL - 3
ER -
TY - BOOK
ED - Topalović, Elvira
ED - Blachut, Alisa
ID - 42328
TI - Grammatische Modelle. Themenschwerpunkt von "Der Deutschunterricht" 3/2023
ER -
TY - CONF
AU - Behler, Felix
ID - 45676
T2 - Narrative Ethics and Character in the Representation of the Past in Contemporary Fiction
TI - (Re-)inventing Biblical Traditions: The Representation of Pontius Pilate in Contemporary Historical Fiction
ER -
TY - BOOK
AU - Herding, Jana
AU - Carle, U.
ID - 45344
TI - Von der Grundschule in die Sekundarstufe. Übergänge ressourcenorientiert gestalten (Hrsg. von Petra Büker)
VL - 10
ER -
TY - JOUR
AU - Zdoupas, Philippos
AU - Laubenstein, Désirée
ID - 45324
IS - 3
JF - Social Sciences
TI - ‘I Feel Well, Accepted and Competent in School’—Determinants of Self-Perceived Inclusion and Academic Self-Concept in Students with Diagnosed Behavioral, Emotional and Social Difficulties (BESD)
VL - 12
ER -
TY - CONF
AU - Hotegni, Sedjro Salomon
AU - Mahabadi, Sepideh
AU - Vakilian, Ali
ID - 45695
KW - Fair range clustering
T2 - Proceedings of the 40th International Conference on Machine Learning, Honolulu, Hawaii, USA. PMLR 202, 2023.
TI - Approximation Algorithms for Fair Range Clustering
ER -
TY - CHAP
AU - Aghaei Abrandabadi, Seyed Ali
ED - Blecher, Joel
ED - Brinkmann, Stefanie
ID - 45696
T2 - Hadith Commentary: Continuity and Change
TI - The Hermeneutics of al-Sharīf al-Murtaḍā (d. 436/1044) in the Interpretation of Akhbār al-Āḥād in his Kitāb al-Amālī
ER -
TY - CONF
AU - Hebrok, Sven Niclas
AU - Nachtigall, Simon
AU - Maehren, Marcel
AU - Erinola, Nurullah
AU - Merget, Robert
AU - Somorovsky, Juraj
AU - Schwenk, Jörg
ID - 43060
T2 - 32nd USENIX Security Symposium
TI - We Really Need to Talk About Session Tickets: A Large-Scale Analysis of Cryptographic Dangers with TLS Session Tickets
ER -
TY - CHAP
AU - Dorogova, Elizaveta
ED - Oeming, Manfred
ED - Schmidt, Nora
ID - 45700
T2 - Hermeneutiken der Weisheit
TI - Weisheit und moralischer Intellektualismus im Koran aus intertextueller Perspektive
ER -
TY - CHAP
AU - Ghaffar, Zishan
ED - Wacker, Marie-Theres
ED - Bechmann, Ulrike
ED - Langer, Gerhard
ID - 45701
T2 - Prophetie in Tenach, Bibel und Qur'an
TI - Prophetologie – Eine Annäherung
ER -
TY - JOUR
AB - Faradaic reactions including charge transfer are often accompanied with diffusion limitation inside the bulk. Conductive two-dimensional frameworks (2D MOFs) with a fast ion transport can combine both - charge transfer and fast diffusion inside their porous structure. To study remaining diffusion limitations caused by particle morphology, different synthesis routes of Cu-2,3,6,7,10,11-hexahydroxytriphenylene (Cu3(HHTP)2), a copper-based 2D MOF, are used to obtain flake- and rod-like MOF particles. Both morphologies are systematically characterized and evaluated for redox-active Li+ ion storage. The redox mechanism is investigated by means of X-ray absorption spectroscopy, FTIR spectroscopy and in situ XRD. Both types are compared regarding kinetic properties for Li+ ion storage via cyclic voltammetry and impedance spectroscopy. A significant influence of particle morphology for 2D MOFs on kinetic aspects of electrochemical Li+ ion storage can be observed. This study opens the path for optimization of redox active porous structures to overcome diffusion limitations of Faradaic processes.
AU - Wrogemann, Jens Matthies
AU - Lüther, Marco Joes
AU - Bärmann, Peer
AU - Lounasvuori, Mailis
AU - Javed, Ali
AU - Tiemann, Michael
AU - Golnak, Ronny
AU - Xiao, Jie
AU - Petit, Tristan
AU - Placke, Tobias
AU - Winter, Martin
ID - 44116
IS - 26
JF - Angewandte Chemie International Edition
KW - General Chemistry
KW - Catalysis
SN - 1433-7851
TI - Overcoming Diffusion Limitation of Faradaic Processes: Property‐Performance Relationships of 2D Conductive Metal‐Organic Framework Cu3(HHTP)2 for Reversible Lithium‐Ion Storage
VL - 62
ER -
TY - JOUR
AB - Since high-order harmonic generation (HHG) from atoms depends sensitively on the polarization of the driving laser field, the polarization gating (PG) technique was developed and applied successfully to generate isolated attosecond pulses from atomic gases. The situation is, however, different in solid-state systems as it has been demonstrated that due to collisions with neighboring atomic cores of the crystal lattice strong HHG can be generated even by elliptically- and circularly-polarized laser fields. Here we apply PG to solid-state systems and find that the conventional PG technique is inefficient for the generation of isolated ultrashort harmonic pulse bursts. In contrast, we demonstrate that a polarization-skewed laser pulse is able to confine the harmonic emission to a time window of less than one-tenth of the laser cycle. This method provides a novel way to control HHG and to generate isolated attosecond pulses in solids.
AU - Song, Xiaohong
AU - Yang, Shidong
AU - Wang, Guifang
AU - Lin, Jianpeng
AU - Wang, Liang
AU - Meier, Torsten
AU - Yang, Weifeng
ID - 45704
IS - 12
JF - Optics Express
KW - Atomic and Molecular Physics
KW - and Optics
SN - 1094-4087
TI - Control of the electron dynamics in solid-state high harmonic generation on ultrafast time scales by a polarization-skewed laser pulse
VL - 31
ER -
TY - JOUR
AU - Zuo, Ruixin
AU - Song, Xiaohong
AU - Ben, Shuai
AU - Meier, Torsten
AU - Yang, Weifeng
ID - 45703
IS - 2
JF - Physical Review Research
KW - General Physics and Astronomy
SN - 2643-1564
TI - Revealing the nonadiabatic tunneling dynamics in solid-state high harmonic generation
VL - 5
ER -
TY - JOUR
AU - Belobo, D. Belobo
AU - Meier, Torsten
ID - 45709
JF - Results in Physics
KW - General Physics and Astronomy
SN - 2211-3797
TI - Manipulation of nonautonomous nonlinear wave solutions of the generalized coupled Gross–Pitaevskii equations with spin–orbit interaction and weak Raman couplings
ER -
TY - GEN
AB - We study analytic aspects of the Dunkl-type Hankel transform, which goes back
to Baker and Forrester and, in an earlier symmetrized version, to Macdonald.
Moreover, we introduce a Dunkl analogue of the Bessel function and K-Bessel
function generalizing those of a symmetric cone. Further, we take a look at
zeta integrals and their distributional extensions in the Dunkl setting. These
distributions are closely related to Dunkl-type Riesz distributions. Further,
we study regularity properties of the zeta distributions and prove a functional
equation relating zeta distributions and their Dunkl transform.
AU - Brennecken, Dominik
ID - 45707
T2 - arXiv:2303.15952
TI - Hankel transform, K-Bessel functions and zeta distributions in the Dunkl
setting
ER -
TY - BOOK
ED - Tatari, Muna
ED - Nassery, Idris
ID - 45705
TI - Dynamics of Tradition: Islamic Law and Theology in Relation
ER -
TY - CHAP
AB - The field of teaching technologies is in constant interplay between educational and industrial advances. Since the beginning of the twenty-first century, digitalization and automatization have become increasingly important. In industrial and social life, we see similar fast-moving developments. These factors challenge education, specifically vocational education, greatly, and raise two very different, yet very much connected questions: how to prepare students for their vocational lives and how to prepare teachers to communicate the necessary competencies to their students? This chapter provides an overview of advances, challenges, and possible solutions, focusing on the three key fields of vocational education in Germany: Industry 4.0, Education 4.0, and innovative teacher education. Most importantly, however, the text examines the continuous interplay between and among these fields. The beginning of the chapter is dedicated to vocational teacher education, in accordance with industrial and educational advances. Specifying this, characteristics of Industry 4.0, as well as students' and teachers' perceptions of Industry 4.0, are discussed. This is followed by an introduction to the concept of so-called learning factories as a possible way of integrating aspects of Industry 4.0 in German vocational schools. The end of the chapter is dedicated to the required changes in educational settings today and in the future. Though Industry 4.0, Education 4.0, and innovative teacher education are each widely discussed in the current literature, the interplay of all three fields reveals a research gap. This chapter tries to close this gap and provide an important contribution to the research field.
AU - Jonas-Ahrend, Gabriela
AU - Vernholz, Mats
AU - Temmen, Katrin
ED - Craig, Cheryl J.
ED - Mena, Juanjo
ED - Kane, Ruth G.
ID - 45552
SN - 1479-3687
T2 - Teacher Education in the Wake of Covid-19
TI - Teaching Technologies: Continuous Interplay Between Educational and Industrial Advances
VL - 41
ER -
TY - JOUR
AU - Schmolke, Tobias
AU - Brunner-Schwer, Christian
AU - Biegler, Max
AU - Rethmeier, Michael
AU - Meschut, Gerson
ID - 45663
IS - 3
JF - Journal of Manufacturing and Materials Processing
TI - On Welding of High-Strength Steels Using Laser Beam Welding and Resistance Spot Weld Bonding with Emphasis on Seam Leak Tightness
VL - 7
ER -
TY - CHAP
AU - Eckel, Julia
ED - Gerling, Winfried
ED - Möring, Sebastian
ED - de Mutiis, Marco
ID - 44461
T2 - Screen-Images. Screenshot, Screencast, In-Game Photography
TI - Screencasting: Documenting Processuality
ER -
TY - JOUR
AU - Häsel-Weide, Uta
ID - 45712
IS - 339
JF - Die Grundschulzeitschrift
TI - Inklusiver Mathematikunterricht. Mathematiklernen in Vielfalt von Kompetenzen, Wegen und Lernsituationen
ER -
TY - JOUR
AU - Graf, Lara Marie
AU - Wienhues, Inga
AU - Häsel-Weide, Uta
ID - 45713
IS - 339
JF - Die Grundschulzeitschrift
TI - Addition und Subtraktion verstehen
ER -
TY - CHAP
AU - Eckel, Julia
AU - Linseisen, Elisa
ED - Steinhoff, Heike
ID - 45716
T2 - Epidemics and Othering. The Biopolitics of COVID-19 in Historical and Cultural Perspectives
TI - The Virus Is Present, Presence Is Virulent: Being Co(m)present With Others in Times of Corona
ER -
TY - GEN
ED - Eckel, Julia
ED - Ernst, Christoph
ED - Schröter, Jens
ID - 36842
IS - 1
KW - tech demo
KW - technology demonstration
KW - demo or die
SN - 1619-1641
T2 - Navigationen - Zeitschrift für Medien- und Kulturwissenschaften
TI - Navigationen: Tech | Demo
VL - 23
ER -
TY - JOUR
AB - AbstractThree prominent low order implicit time integration schemes are the first order implicit Euler-method, the second order trapezoidal rule and the second order Ellsiepen method. Its advantages are stability and comparatively low computational cost, however, they require the solution of a nonlinear system of equations. This paper presents a general approach for the construction of third order Runge–Kutta methods by embedding the above mentioned implicit schemes into the class of ELDIRK-methods. These will be defined to have an Explicit Last stage in the general Butcher array of Diagonal Implicit Runge–Kutta (DIRK) methods, with the consequence, that no additional system of equations must be solved. The main results—valid also for non-linear ordinary differential equations—are as follows: Two extra function calculations are required in order to embed the implicit Euler-method and one extra function calculation is required for the trapezoidal-rule and the Ellsiepen method, in order to obtain the third order properties, respectively. Two numerical examples are concerned with a parachute with viscous damping and a two-dimensional laser beam simulation. Here, we verify the higher order convergence behaviours of the proposed new ELDIRK-methods, and its successful performances for asymptotically exact global error estimation of so-called reversed embedded RK-method are shown.
AU - Mahnken, Rolf
ID - 45757
JF - Computational Mechanics
KW - Applied Mathematics
KW - Computational Mathematics
KW - Computational Theory and Mathematics
KW - Mechanical Engineering
KW - Ocean Engineering
KW - Computational Mechanics
SN - 0178-7675
TI - Derivation of third order Runge–Kutta methods (ELDIRK) by embedding of lower order implicit time integration schemes for local and global error estimation
ER -
TY - CONF
AU - Abbas, Nilab
AU - Bauer, Anna Brigitte
AU - Reinhold, Peter
ED - van Vorst, Helena
ID - 45759
T2 - Lernen, Lehren und Forschen in einer digital geprägten Welt
TI - PSΦ: Entwicklung von Unterstützungsmaßnahmen für Theoretische Physik
ER -
TY - CONF
AU - Bauer, Anna Brigitte
AU - Reinhold, Peter
ED - van Vorst, Helena
ID - 45758
T2 - Lernen, Lehren und Forschen in einer digital geprägten Welt
TI - PSФ: Entwicklung einer abgestimmten Studieneingangsphase (Physik)
ER -
TY - JOUR
AB - Abstract
The development of potential theory heightens the understanding of fundamental interactions in quantum systems. In this paper, the bound state solution of the modified radial Klein-Gordon equation is presented for generalised tanh-shaped hyperbolic potential from the Nikiforov-Uvarov method. The resulting energy eigenvalues and corresponding radial wave functions are expressed in terms of the Jacobi polynomials for arbitrary $l$ states. It is also demonstrated that energy eigenvalues strongly correlate with potential parameters for quantum states. Considering particular cases, the generalised tanh-shaped hyperbolic potential and its derived energy eigenvalues exhibit good agreement with the reported findings. Furthermore, the rovibrational energies are calculated for three representative diatomic molecules, namely $\rm{H_{2}}$, $\rm{HCl}$ and $\rm{O_{2}}$. The lowest excitation energies are in perfect agreement with experimental results. Overall, the potential model is displayed to be a viable candidate for concurrently prescribing numerous quantum systems.
AU - Badalov, Vatan
AU - Badalov, Sabuhi
ID - 45763
JF - Communications in Theoretical Physics
KW - Physics and Astronomy (miscellaneous)
SN - 0253-6102
TI - Generalised tanh-shaped hyperbolic potential: Klein-Gordon equation's bound state solution
ER -
TY - GEN
AU - Simon-Mertens, Florian
ID - 45762
TI - Effizienzanalyse leichtgewichtiger Neuronaler Netze für FPGA-basierte Modulationsklassifikation
ER -
TY - JOUR
AB - A series of new organic donor–π–acceptor dyes incorporating a diquat moiety as a novel electron-acceptor unit have been synthesized and characterized. The analytical data were supported by DFT calculations. These dyes were explored in the aerobic thiocyanation of indoles and pyrroles. Here they showed a high photocatalytic activity under visible light, giving isolated yields of up to 97 %. In addition, the photocatalytic activity of standalone diquat and methyl viologen through formation of an electron donor acceptor complex is presented.
AU - Meier, Armin
AU - Badalov, Sabuhi
AU - Biktagirov, Timur
AU - Schmidt, Wolf Gero
AU - Wilhelm, René
ID - 43827
IS - 22
JF - Chemistry – A European Journal
KW - General Chemistry
KW - Catalysis
KW - Organic Chemistry
SN - 0947-6539
TI - Diquat Based Dyes: A New Class of Photoredox Catalysts and Their Use in Aerobic Thiocyanation
VL - 29
ER -
TY - CONF
AB - RISC-V has received worldwide acceptance in the industry and by the academic community. As of today, multiple
RISC-V applications and variants are under investigation for embedded IoT systems, from resource-limited single-core
processors up to multi-core systems for High-Performance Computing (HPC). Recently, the Grid of Processing Cells
(GPC) platform has been proposed as a scalable parallel grid-oriented network of processor cores with local memories.
This paper describes a prototype design of the GPC platform for hardware implementation at Register-Transfer Level
(RTL) based on modified RISC-V Rocket processors with scratchpad memories. It introduces a scalable Chisel-based
implementation of the modified Rocket cores with RTL generation and a functional test using Verilator simulation. This
work also includes the adaptation of the Chipyard software toolchain to extend the compiler to multi-core grids with
different local address spaces.
AU - Luchterhandt, Lars
AU - Nellius, Tom
AU - Beck, Robert
AU - Dömer, Rainer
AU - Kneuper, Pascal
AU - Müller, Wolfgang
AU - Sadiye, Babak
ID - 45778
T2 - MBMV 2023 - 26. Workshop "Methoden und Beschreibungssprachen zur Modellierung und Verifikation von Schaltungen und Systemen“
TI - Methoden und Beschreibungssprachen zur Modellierung und Verifikation von Schaltungen und Systemen
ER -
TY - JOUR
AB - As a benchmark, the structural, electronic and optical properties of the three main phases of TiO$\rm{_2}$ crystals have been calculated using Hubbard U correction and hybrid functional methods in density-functional theory. These calculations are compared concerning the available experimental observations on pristine TiO$\rm{_2}$ crystals. Modified hybrid functionals, particularly the PBE0 functional with 11.4% fraction of exact exchange, are shown to provide highly accurate atomic structures and also accurate electronic structure data, including optical excitation energies. With $\rm{DFT+U}$, accurate optical spectra are also possible, but only if the Hubbard U is applied on the O $\rm2p$ electrons exclusively. Furthermore, both methods, the 11.4%-PBE0 hybrid functional and the $\rm{DFT+U_p}$ scheme have been used to study TiO$\rm{_2}$ amorphous ultra-thin films, confirming the agreement of the two methods even with respect to small details of the optical spectra. Our results show that the proposed $\rm{DFT+U_p}$ methodology is computationally efficient, but still accurate. It can be applied to well-ordered TiO$\rm{_2}$ polymorphs as well as to amorphous TiO$\rm{_2}$ and will allow for the calculations of complex titania-based structures.
AU - Badalov, Sabuhi
AU - Bocchini, Adriana
AU - Wilhelm, Rene
AU - Kozub, A. L.
AU - Gerstmann, Uwe
AU - Schmidt, Wolf Gero
ID - 45764
JF - Materials Research Express
TI - Rutile, anatase, brookite and titania thin film from Hubbard corrected and hybrid DFT
ER -
TY - CONF
AU - Ecker, Wolfgang
AU - Krstic, Milos
AU - Ulbricht, Markus
AU - Mauderer, Andreas
AU - Jentzsch, Eyck
AU - Koch, Andreas
AU - Koppelmann, Bastian
AU - Müller, Wolfgang
AU - Sadiye, Babak
AU - Bruns, Niklas
AU - Drechsler, Rolf
AU - Müller-Gritschneder, Daniel
AU - Schlamelcher, Jan
AU - Grüttner, Kim
AU - Bormann, Jörg
AU - Kunz, Wolfgang
AU - Heckmann, Reinhold
AU - Angst, Gerhard
AU - Wimmer, Ralf
AU - Becker, Bernd
AU - Faller, Tobias
AU - Palomero Bernardo, Paul
AU - Brinkmann, Oliver
AU - Partzsch, Johannes
AU - Mayr, Christian
ID - 45776
T2 - Scale4Edge – Scaling RISC-V for Edge Applications
TI - Scale4Edge – Scaling RISC-V for Edge Applications
ER -
TY - JOUR
AB - The development of automotive components with reduced greenhouse gas (GHG) emissions is needed to reduce overall vehicle emissions. Life Cycle Engineering (LCE) based on Life Cycle Assessment (LCA) supports this by providing holistic information and improvement potentials regarding eco-efficient products. Key factors influencing LCAs of automotive components, such as material production, will change in the future. First approaches for integrating future scenarios for these key factors into LCE already exist, but they only consider a limited number of parameters and scenarios. This work aims to develop a method that can be practically applied in the industry for integrating prospective LCAs (pLCA) into the LCE of automotive components, considering relevant parameters and consistent scenarios. Therefore, pLCA methods are further developed to investigate the influence of future scenarios on the GHG emissions of automotive components. The practical application is demonstrated for a vehicle component with different design options. This paper shows that different development paths of the foreground and background system can shift the ecological optimum of design alternatives. Therefore, future pathways of relevant parameters must be considered comprehensively to reduce GHG emissions of future vehicles. This work contributes to the methodological and practical integration of pLCA into automotive development processes and provides quantitative results.
AU - Grenz, Julian
AU - Ostermann, Moritz
AU - Käsewieter, Karoline
AU - Cerdas, Felipe
AU - Marten, Thorsten
AU - Herrmann, Christoph
AU - Tröster, Thomas
ID - 45782
IS - 13
JF - Sustainability
KW - prospective LCA
KW - life cycle engineering (LCE)
KW - lightweight design
KW - automotive components
KW - body parts
KW - circular economy
KW - steel
KW - aluminum
KW - hybrid materials
KW - fiber metal laminates
SN - 2071-1050
TI - Integrating Prospective LCA in the Development of Automotive Components
VL - 15
ER -
TY - CONF
AB - The global megatrends of digitization and sustainability lead to new challenges for the design and management of technical products in industrial companies. Product management - as the bridge between market and company - has the task to absorb and combine the manifold requirements and make the right product-related decisions. In the process, product management is confronted with heterogeneous information, rapidly changing portfolio components, as well as increasing product, and organizational complexity. Combining and utilizing data from different sources, e.g., product usage data and social media data leads to promising potentials to improve the quality of product-related decisions. In this paper, we reinforce the need for data-driven product management as an interdisciplinary field of action. The state of data-driven product management in practice was analyzed by conducting workshops with six manufacturing companies and hosting a focus group meeting with experts from different industries. We investigate the expectations and derive requirements leading us to open research questions, a vision for data-driven product management, and a research agenda to shape future research efforts.
AU - Grigoryan, Khoren
AU - Fichtler, Timm
AU - Schreiner, Nick
AU - Rabe, Martin
AU - Panzner, Melina
AU - Kühn, Arno
AU - Dumitrescu, Roman
AU - Koldewey, Christian
ID - 45793
KW - Product Management
KW - Data Analytics
KW - Data-Driven Design
KW - Product-related data
KW - Lifecycle Data
KW - Tool-support
T2 - Procedia CIRP 33
TI - Data-Driven Product Management: A Practitioner-Driven Research Agenda
ER -
TY - JOUR
AB - Abstract
Background
Occupational health interventions for leaders are underrepresented in small and medium-sized enterprises (SMEs). When creating and developing effective occupational health interventions, identification of the specific needs of the target group is regarded as an essential step before planning an intervention. Therefore, the aim of this study was (1) to examine the subjectively experienced work-related stressors of leaders in small and medium-sized IT and technological services enterprises, (2) to explore coping behaviors leaders use to deal with the experienced work-related stressors, (3) to investigate resources supporting the coping process and (4) to identify potentially self-perceived consequences resulting from the experienced stressors.
Methods
Ten semi-structured interviews with leaders in small and medium-sized IT and technological services enterprises were conducted. The interviews were transcribed and analyzed with content-structuring qualitative content analysis in accordance to Kuckartz.
Results
Leaders in small and medium-sized IT and technological services enterprises experience various stressors caused by work organization as well as industry-related stressors and other work-related stressors. To address the experienced stressors, leaders apply problem focused coping behaviors (e.g. performing changes on structural and personal level), emotional focused coping behaviors (e.g. balancing activities, cognitive restructuring) as well as the utilization of social support. Helpful resources for the coping process include organizational, social and personal resources. As a result of the experienced work-related stressors, interviewees stated to experience different health impairments, negative effects on work quality as well as neglect of leisure activities and lack of time for family and friends.
Conclusion
The identified experienced work-related stressors, applied coping behaviors, utilized resources and emerging consequences underpin the urgent need for the development and performance of health-oriented leadership interventions for leaders in small and medium- sized IT and technological services. The results of this study can be used when designing a target-oriented intervention for the examined target group.
AU - Dannheim, Indra
AU - Buyken, Anette
AU - Kroke, Anja
ID - 45807
IS - 1
JF - BMC Public Health
KW - Public Health
KW - Environmental and Occupational Health
SN - 1471-2458
TI - Work-related stressors and coping behaviors among leaders in small and medium-sized IT and technological services enterprises
VL - 23
ER -
TY - JOUR
AB - Abstract
Objective:
To systematically review the impact of choice architecture interventions (CAI) on the food choice of healthy adolescents in a secondary school setting. Factors potentially contributing to the effectiveness of CAI types and numbers implemented and its long-term success were examined.
Design:
PUBMED and Web of Science were systematically searched in October 2021. Publications were included following predefined inclusion criteria and grouped according to number and duration of implemented interventions. Intervention impact was determined by systematic description of the reported quantitative changes in food choice and/or consumption. Intervention types were compared with regards to food selection and sustained effects either during or following the intervention.
Setting:
CAI on food choice of healthy adolescents in secondary schools.
Participants:
Not applicable
Results:
Fourteen studies were included; four randomized controlled trials and five each of controlled or uncontrolled pre-post design, respectively. Four studies implemented a single CAI type, with ten implementing > 1. Three studies investigated CAI effects over the course of a school year either by continuous or repeated data collection, while ten studies’ schools were visited on selected days during intervention. Twelve studies reported desired changes in overall food selection, yet effects were not always significant, and appeared less conclusive for longer term studies.
Conclusions:
This review found promising evidence that CAI can be effective in encouraging favorable food choices in healthy adolescents in a secondary school setting. However, further studies designed to evaluate complex interventions are needed.
AU - Schulte, Eva A.
AU - Winkler, Gertrud
AU - Brombach, Christine
AU - Buyken, Anette
ID - 45806
JF - Public Health Nutrition
KW - Public Health
KW - Environmental and Occupational Health
KW - Nutrition and Dietetics
KW - Medicine (miscellaneous)
SN - 1368-9800
TI - Choice architecture interventions promoting sustained healthier food choice and consumption by students in a secondary school setting: A systematic review of intervention studies
ER -
TY - JOUR
AB - Background: Establishing a healthy lifestyle has a great potential to reduce the prevalence of non-communicable diseases (NCDs) and their risk factors. NCDs contribute immensely to the economic costs of the health care system arising from therapy, medication use, and productivity loss. Aim: The aim of this study was to evaluate the effect of the Healthy Lifestyle Community Program (cohort 2; HLCP-2) on medication use and consequently on medication costs for selected NCDs (diabetes, hypertension, and dyslipidemia). Methods: Data stem from a 24-month non-randomised, controlled intervention trial aiming to improve risk factors for NCDs. Participants completed questionnaires at six measurement time points assessing medication use, from which costs were calculated. The following medication groups were included in the analysis as NCD medication: glucose-lowering medications (GLM), antihypertensive drugs (AHD) and lipid-lowering drugs (LLD). Statistical tests for inter- and intra-group comparison and multiple regression analysis were performed. Results: In total, 118 participants (intervention group [IG]: n = 79; control group [CG]: n = 39) were considered. Compared to baseline medication use decreased slightly in the IG and increased in the CG. Costs for NCD medication were significantly lower in the IG than in the CG after 6 ( p = 0.004), 12 ( p = 0.040), 18 ( p = 0.003) and 24 months ( p = 0.008). After multiple regression analysis and adjusting for confounders, change of costs differed significantly between the groups in all final models. Conclusion: The HLCP-2 was able to moderately prevent an increase of medication use and thus reduce costs for medication to treat NCDs with the greatest impact on AHD. Trial registration German Clinical Trials Register DRKS ( www.drks.de ; reference: DRKS00018775).
AU - Kranz, Ragna-Marie
AU - Kettler, Carmen
AU - Anand, Corinna
AU - Koeder, Christian
AU - Husain, Sarah
AU - Schoch, Nora
AU - Buyken, Anette
AU - Englert, Heike
ID - 45810
JF - Nutrition and Health
KW - Nutrition and Dietetics
KW - General Medicine
KW - Medicine (miscellaneous)
SN - 0260-1060
TI - Effect of a controlled lifestyle intervention on medication use and costs: The Healthy Lifestyle Community Program (cohort 2)
ER -
TY - JOUR
AB - A previous follow-up of the GINIplus study showed that breastfeeding could protect against early eczema. However, effects diminished in adolescence, possibly indicating a “rebound effect” in breastfed children after initial protection. We evaluated the role of early eczema until three years of age on allergies until young adulthood and assessed whether early eczema modifies the association between breastfeeding and allergies. Data from GINIplus until 20-years of age (N = 4058) were considered. Information on atopic eczema, asthma, and rhinitis was based on reported physician’s diagnoses. Adjusted Odds Ratios (aOR) were modelled by using generalized estimating equations. Early eczema was associated with eczema (aORs = 3.2–14.4), asthma (aORs = 2.2–2.7), and rhinitis (aORs = 1.2–2.7) until young adulthood. For eczema, this association decreased with age (p-for-interaction = 0.002–0.006). Longitudinal models did not show associations between breastfeeding and the respective allergies from 5 to 20 years of age. Moreover, early eczema generally did not modify the association between milk feeding and allergies except for rhinitis in participants without family history of atopy. Early eczema strongly predicts allergies until young adulthood. While preventive effects of full breastfeeding on eczema in infants with family history of atopy does not persist until young adulthood, the hypothesis of a rebound effect after initial protection cannot be confirmed.
AU - Libuda, Lars
AU - Filipiak-Pittroff, Birgit
AU - Standl, Marie
AU - Schikowski, Tamara
AU - von Berg, Andrea
AU - Koletzko, Sibylle
AU - Bauer, Carl-Peter
AU - Heinrich, Joachim
AU - Berdel, Dietrich
AU - Gappa, Monika
ID - 45813
IS - 12
JF - Nutrients
KW - Food Science
KW - Nutrition and Dietetics
SN - 2072-6643
TI - Full Breastfeeding and Allergic Diseases—Long-Term Protection or Rebound Effects?
VL - 15
ER -
TY - CONF
AB - The notion of neural collapse refers to several emergent phenomena that have been empirically observed across various canonical classification problems. During the terminal phase of training a deep neural network, the feature embedding of all examples of the same class tend to collapse to a single representation, and the features of different classes tend to separate as much as possible. Neural collapse is often studied through a simplified model, called the unconstrained feature representation, in which the model is assumed to have "infinite expressivity" and can map each data point to any arbitrary representation. In this work, we propose a more realistic variant of the unconstrained feature representation that takes the limited expressivity of the network into account. Empirical evidence suggests that the memorization of noisy data points leads to a degradation (dilation) of the neural collapse. Using a model of the memorization-dilation (M-D) phenomenon, we show one mechanism by which different losses lead to different performances of the trained network on noisy data. Our proofs reveal why label smoothing, a modification of cross-entropy empirically observed to produce a regularization effect, leads to improved generalization in classification tasks.
AU - Nguyen, Duc Anh
AU - Levie, Ron
AU - Lienen, Julian
AU - Kutyniok, Gitta
AU - Hüllermeier, Eyke
ID - 31880
T2 - International Conference on Learning Representations, ICLR
TI - Memorization-Dilation: Modeling Neural Collapse Under Noise
ER -
TY - GEN
AB - Label noise poses an important challenge in machine learning, especially in
deep learning, in which large models with high expressive power dominate the
field. Models of that kind are prone to memorizing incorrect labels, thereby
harming generalization performance. Many methods have been proposed to address
this problem, including robust loss functions and more complex label correction
approaches. Robust loss functions are appealing due to their simplicity, but
typically lack flexibility, while label correction usually adds substantial
complexity to the training setup. In this paper, we suggest to address the
shortcomings of both methodologies by "ambiguating" the target information,
adding additional, complementary candidate labels in case the learner is not
sufficiently convinced of the observed training label. More precisely, we
leverage the framework of so-called superset learning to construct set-valued
targets based on a confidence threshold, which deliver imprecise yet more
reliable beliefs about the ground-truth, effectively helping the learner to
suppress the memorization effect. In an extensive empirical evaluation, our
method demonstrates favorable learning behavior on synthetic and real-world
noise, confirming the effectiveness in detecting and correcting erroneous
training labels.
AU - Lienen, Julian
AU - Hüllermeier, Eyke
ID - 45814
T2 - arXiv:2305.13764
TI - Mitigating Label Noise through Data Ambiguation
ER -
TY - CONF
AU - Özcan, Leon
AU - Fichtler, Timm
AU - Kasten, Benjamin
AU - Koldewey, Christian
AU - Dumitrescu, Roman
ID - 45812
KW - Digital Platform
KW - Platform Strategy
KW - Strategic Management
KW - Platform Life Cycle
KW - Interview Study
KW - Business Model
KW - Business-to-Business
KW - Two-sided Market
KW - Multi-sided Market
TI - Interview Study on Strategy Options for Platform Operation in B2B Markets
ER -
TY - JOUR
AB - As cognitive function is critical for muscle coordination, cognitive training may also improve neuromuscular control strategy and knee function following an anterior cruciate ligament reconstruction (ACLR). The purpose of this case-control study was to examine the effects of cognitive training on joint stiffness regulation in response to negative visual stimuli and knee function following ACLR. A total of 20 ACLR patients and 20 healthy controls received four weeks of online cognitive training. Executive function, joint stiffness in response to emotionally evocative visual stimuli (neutral, fearful, knee injury related), and knee function outcomes before and after the intervention were compared. Both groups improved executive function following the intervention (p = 0.005). The ACLR group had greater mid-range stiffness in response to fearful (p = 0.024) and injury-related pictures (p = 0.017) than neutral contents before the intervention, while no post-intervention stiffness differences were observed among picture types. The ACLR group showed better single-legged hop for distance after cognitive training (p = 0.047), while the healthy group demonstrated no improvement. Cognitive training enhanced executive function, which may reduce joint stiffness dysregulation in response to emotionally arousing images and improve knee function in ACLR patients, presumably by facilitating neural processing necessary for neuromuscular control.
AU - An, Yong Woo
AU - Kim, Kyung-Min
AU - DiTrani Lobacz, Andrea
AU - Baumeister, Jochen
AU - Higginson, Jill S.
AU - Rosen, Jeffrey
AU - Swanik, Charles Buz
ID - 45824
IS - 13
JF - Healthcare
KW - Health Information Management
KW - Health Informatics
KW - Health Policy
KW - Leadership and Management
SN - 2227-9032
TI - Cognitive Training Improves Joint Stiffness Regulation and Function in ACLR Patients Compared to Healthy Controls
VL - 11
ER -
TY - CONF
AB - Many applications require explainable node classification in knowledge graphs. Towards this end, a popular ``white-box'' approach is class expression learning: Given sets of positive and negative nodes, class expressions in description logics are learned that separate positive from negative nodes. Most existing approaches are search-based approaches generating many candidate class expressions and selecting the best one. However, they often take a long time to find suitable class expressions. In this paper, we cast class expression learning as a translation problem and propose a new family of class expression learning approaches which we dub neural class expression synthesizers. Training examples are ``translated'' into class expressions in a fashion akin to machine translation. Consequently, our synthesizers are not subject to the runtime limitations of search-based approaches. We study three instances of this novel family of approaches based on LSTMs, GRUs, and set transformers, respectively. An evaluation of our approach on four benchmark datasets suggests that it can effectively synthesize high-quality class expressions with respect to the input examples in approximately one second on average. Moreover, a comparison to state-of-the-art approaches suggests that we achieve better F-measures on large datasets. For reproducibility purposes, we provide our implementation as well as pretrained models in our public GitHub repository at https://github.com/dice-group/NeuralClassExpressionSynthesis
AU - KOUAGOU, N'Dah Jean
AU - Heindorf, Stefan
AU - Demir, Caglar
AU - Ngonga Ngomo, Axel-Cyrille
ED - Pesquita, Catia
ED - Jimenez-Ruiz, Ernesto
ED - McCusker, Jamie
ED - Faria, Daniel
ED - Dragoni, Mauro
ED - Dimou, Anastasia
ED - Troncy, Raphael
ED - Hertling, Sven
ID - 33734
KW - Neural network
KW - Concept learning
KW - Description logics
T2 - The Semantic Web - 20th Extended Semantic Web Conference (ESWC 2023)
TI - Neural Class Expression Synthesis
VL - 13870
ER -
TY - GEN
AB - Knowledge bases are widely used for information management on the web,
enabling high-impact applications such as web search, question answering, and
natural language processing. They also serve as the backbone for automatic
decision systems, e.g. for medical diagnostics and credit scoring. As
stakeholders affected by these decisions would like to understand their
situation and verify fair decisions, a number of explanation approaches have
been proposed using concepts in description logics. However, the learned
concepts can become long and difficult to fathom for non-experts, even when
verbalized. Moreover, long concepts do not immediately provide a clear path of
action to change one's situation. Counterfactuals answering the question "How
must feature values be changed to obtain a different classification?" have been
proposed as short, human-friendly explanations for tabular data. In this paper,
we transfer the notion of counterfactuals to description logics and propose the
first algorithm for generating counterfactual explanations in the description
logic $\mathcal{ELH}$. Counterfactual candidates are generated from concepts
and the candidates with fewest feature changes are selected as counterfactuals.
In case of multiple counterfactuals, we rank them according to the likeliness
of their feature combinations. For evaluation, we conduct a user survey to
investigate which of the generated counterfactual candidates are preferred for
explanation by participants. In a second study, we explore possible use cases
for counterfactual explanations.
AU - Sieger, Leonie Nora
AU - Heindorf, Stefan
AU - Blübaum, Lukas
AU - Ngonga Ngomo, Axel-Cyrille
ID - 37937
T2 - arXiv:2301.05109
TI - Counterfactual Explanations for Concepts in ELH
ER -
TY - GEN
AB - Label noise poses an important challenge in machine learning, especially in
deep learning, in which large models with high expressive power dominate the
field. Models of that kind are prone to memorizing incorrect labels, thereby
harming generalization performance. Many methods have been proposed to address
this problem, including robust loss functions and more complex label correction
approaches. Robust loss functions are appealing due to their simplicity, but
typically lack flexibility, while label correction usually adds substantial
complexity to the training setup. In this paper, we suggest to address the
shortcomings of both methodologies by "ambiguating" the target information,
adding additional, complementary candidate labels in case the learner is not
sufficiently convinced of the observed training label. More precisely, we
leverage the framework of so-called superset learning to construct set-valued
targets based on a confidence threshold, which deliver imprecise yet more
reliable beliefs about the ground-truth, effectively helping the learner to
suppress the memorization effect. In an extensive empirical evaluation, our
method demonstrates favorable learning behavior on synthetic and real-world
noise, confirming the effectiveness in detecting and correcting erroneous
training labels.
AU - Lienen, Julian
AU - Hüllermeier, Eyke
ID - 45244
T2 - arXiv:2305.13764
TI - Mitigating Label Noise through Data Ambiguation
ER -
TY - JOUR
AB - This article presents the potential-dependent adsorption of two proteins, bovine serum albumin (BSA) and lysozyme (LYZ), on Ti6Al4V alloy at pH 7.4 and 37 °C. The adsorption process was studied on an electropolished alloy under cathodic and anodic overpotentials, compared to the open circuit potential (OCP). To analyze the adsorption process, various complementary interface analytical techniques were employed, including PM-IRRAS (polarization-modulation infrared reflection-absorption spectroscopy), AFM (atomic force microscopy), XPS (X-ray photoelectron spectroscopy), and E-QCM (electrochemical quartz crystal microbalance) measurements. The polarization experiments were conducted within a potential range where charging of the electric double layer dominates, and Faradaic currents can be disregarded. The findings highlight the significant influence of the interfacial charge distribution on the adsorption of BSA and LYZ onto the alloy surface. Furthermore, electrochemical analysis of the protein layers formed under applied overpotentials demonstrated improved corrosion protection properties. These studies provide valuable insights into protein adsorption on titanium alloys under physiological conditions, characterized by varying potentials of the passive alloy.
AU - Duderija, Belma
AU - González-Orive, Alejandro
AU - Ebbert, Christoph
AU - Neßlinger, Vanessa
AU - Keller, Adrian
AU - Grundmeier, Guido
ID - 45828
IS - 13
JF - Molecules
KW - Chemistry (miscellaneous)
KW - Analytical Chemistry
KW - Organic Chemistry
KW - Physical and Theoretical Chemistry
KW - Molecular Medicine
KW - Drug Discovery
KW - Pharmaceutical Science
SN - 1420-3049
TI - Electrode Potential-Dependent Studies of Protein Adsorption on Ti6Al4V Alloy
VL - 28
ER -
TY - CHAP
AU - Keller, Adrian
AU - Grundmeier, Guido
ID - 45829
SN - 9780124095472
T2 - Reference Module in Chemistry, Molecular Sciences and Chemical Engineering
TI - High-speed AFM studies of macromolecular dynamics at solid/liquid interfaces
ER -
TY - CHAP
AU - Kostan, Anastassija
ID - 45833
SN - 9783828877368
T2 - Bedeutung und Implikationen epistemischer Ungerechtigkeit
TI - Die epistemische Gewalt KI-basierter Gesichtserkennung. Wie ein codierter Blick neue Formen der technologisierten Subalternität erschafft
ER -
TY - THES
AB - Reading between the lines has so far been reserved for humans. The present dissertation addresses this research gap using machine learning methods.
Implicit expressions are not comprehensible by computers and cannot be localized in the text. However, many texts arise on interpersonal topics that, unlike commercial evaluation texts, often imply information only by means of longer phrases. Examples are the kindness and the attentiveness of a doctor, which are only paraphrased (“he didn’t even look me in the eye”). The analysis of such data, especially the identification and localization of implicit statements, is a research gap (1). This work uses so-called Aspect-based Sentiment Analysis as a method for this purpose. It remains open how the aspect categories to be extracted can be discovered and thematically delineated based on the data (2). Furthermore, it is not yet explored how a collection of tools should look like, with which implicit phrases can be identified and thus made explicit
(3). Last, it is an open question how to correlate the identified phrases from the text data with other data, including the investigation of the relationship between quantitative scores (e.g., school grades) and the thematically related text (4). Based on these research gaps, the research question is posed as follows: Using text mining methods, how can implicit rating content be properly interpreted and thus made explicit before it is automatically categorized and quantified?
The uniqueness of this dissertation is based on the automated recognition of implicit linguistic statements alongside explicit statements. These are identified in unstructured text data so that features expressed only in the text can later be compared across data sources, even though they were not included in rating categories such as stars or school grades. German-language physician ratings from websites in three countries serve as the sample domain. The solution approach consists of data creation, a pipeline for text processing and analyses based on this. In the data creation, aspect classes are identified and delineated across platforms and marked in text data. This results in six datasets with over 70,000 annotated sentences and detailed guidelines. The models that were created based on the training data extract and categorize the aspects. In addition, the sentiment polarity and the evaluation weight, i. e., the importance of each phrase, are determined. The models, which are combined in a pipeline, are used in a prototype in the form of a web application. The analyses built on the pipeline quantify the rating contents by linking the obtained information with further data, thus allowing new insights.
As a result, a toolbox is provided to identify quantifiable rating content and categories using text mining for a sample domain. This is used to evaluate the approach, which in principle can also be adapted to any other domain.
AU - Kersting, Joschka
ID - 44323
TI - Identifizierung quantifizierbarer Bewertungsinhalte und -kategorien mittels Text Mining
ER -
TY - JOUR
AB - The aim of the present study is to prove the construct validity of the German versions of the Feeling Scale (FS) and the Felt Arousal Scale (FAS) for a progressive muscle relaxation (PMR) exercise. A total of 228 sport science students conducted the PMR exercise for 45 min and completed the FS, the FAS, and the Self-Assessment Manikin (SAM) in a pre-test–post-test design. A significant decrease in arousal (t(227) = 8.296, p < 0.001) and a significant increase in pleasure (t(227) = 4.748, p < 0.001) were observed. For convergent validity, the correlations between the FS and the subscale SAM-P for the valence dimension (r = 0.67, p < 0.001) and between the FAS and the subscale SAM-A for the arousal dimension (r = 0.31, p < 0.001) were significant. For discriminant validity, the correlations between different constructs (FS and SAM-A, FAS and SAM-P) were not significant, whereas the discriminant analysis between the FS and the FAS revealed a negative significant correlation (r = −0.15, p < 0.001). Together, the pattern of results confirms the use of the German versions of the FS and the FAS to measure the affective response for a PMR exercise.
AU - Thorenz, Kristin
AU - Berwinkel, Andre
AU - Weigelt, Matthias
ID - 45857
IS - 7
JF - Behavioral Sciences
KW - Behavioral Neuroscience
KW - General Psychology
KW - Genetics
KW - Development
KW - Ecology
KW - Evolution
KW - Behavior and Systematics
SN - 2076-328X
TI - A Validation Study for the German Versions of the Feeling Scale and the Felt Arousal Scale for a Progressive Muscle Relaxation Exercise
VL - 13
ER -
TY - JOUR
AU - Thorenz, Kristin
AU - Berwinkel, Andre
AU - Weigelt, Matthias
ID - 45856
IS - 06
JF - Psychology
KW - General Earth and Planetary Sciences
KW - General Environmental Science
SN - 2152-7180
TI - A Validation Study of the German Versions of the Feeling Scale and the Felt Arousal Scale for a Passive Relaxation Technique (Autogenic Training)
VL - 14
ER -
TY - JOUR
AU - Topalović, Elvira
AU - Blachut, Alisa
ID - 45861
JF - Der Deutschunterricht
TI - Grammatische Modelle. Einführung in das Themenheft
VL - 3
ER -
TY - JOUR
AU - Schlosser, Florian
AU - Zysk, Sebastian
AU - Walmsley, Timothy G.
AU - Kong, Lana
AU - Zühlsdorf, Benjamin
AU - Meschede, Henning
ID - 45867
JF - Energy Conversion and Management
KW - Energy Engineering and Power Technology
KW - Fuel Technology
KW - Nuclear Energy and Engineering
KW - Renewable Energy
KW - Sustainability and the Environment
SN - 0196-8904
TI - Break-even of high-temperature heat pump integration for milk spray drying
VL - 291
ER -
TY - JOUR
AU - Wolf, Isabel
AU - Holzapfel, Peter K.R.
AU - Meschede, Henning
AU - Finkbeiner, Matthias
ID - 45865
JF - Applied Energy
KW - Management
KW - Monitoring
KW - Policy and Law
KW - Mechanical Engineering
KW - General Energy
KW - Building and Construction
SN - 0306-2619
TI - On the potential of temporally resolved GHG emission factors for load shifting: A case study on electrified steam generation
VL - 348
ER -
TY - JOUR
AB - Perfect vector vortex beams (PVVBs) have attracted considerable interest due to their peculiar optical features. PVVBs are typically generated through the superposition of perfect vortex beams, which suffer from the limited number of topological charges (TCs). Furthermore, dynamic control of PVVBs is desirable and has not been reported. We propose and experimentally demonstrate hybrid grafted perfect vector vortex beams (GPVVBs) and their dynamic control. Hybrid GPVVBs are generated through the superposition of grafted perfect vortex beams with a multifunctional metasurface. The generated hybrid GPVVBs possess spatially variant rates of polarization change due to the involvement of more TCs. Each hybrid GPVVB includes different GPVVBs in the same beam, adding more design flexibility. Moreover, these beams are dynamically controlled with a rotating half waveplate. The generated dynamic GPVVBs may find applications in the fields where dynamic control is in high demand, including optical encryption, dense data communication, and multiple particle manipulation.
AU - Ahmed, Hammad
AU - Ansari, Muhammad Afnan
AU - Li, Yan
AU - Zentgraf, Thomas
AU - Mehmood, Muhammad Qasim
AU - Chen, Xianzhong
ID - 45868
IS - 1
JF - Nature Communications
KW - General Physics and Astronomy
KW - General Biochemistry
KW - Genetics and Molecular Biology
KW - General Chemistry
KW - Multidisciplinary
SN - 2041-1723
TI - Dynamic control of hybrid grafted perfect vector vortex beams
VL - 14
ER -
TY - JOUR
AB - Interference between single photons is key for many quantum optics experiments and applications in quantum technologies, such as quantum communication or computation. It is advantageous to operate the systems at telecommunication wavelengths and to integrate the setups for these applications in order to improve stability, compactness and scalability. A new promising material platform for integrated quantum optics is lithium niobate on insulator (LNOI). Here, we realise Hong-Ou-Mandel (HOM) interference between telecom photons from an engineered parametric down-conversion source in an LNOI directional coupler. The coupler has been designed and fabricated in house and provides close to perfect balanced beam splitting. We obtain a raw HOM visibility of (93.5 ± 0.7) %, limited mainly by the source performance and in good agreement with off-chip measurements. This lays the foundation for more sophisticated quantum experiments in LNOI.
AU - Babel, Silia
AU - Bollmers, Laura
AU - Massaro, Marcello
AU - Luo, Kai Hong
AU - Stefszky, Michael
AU - Pegoraro, Federico
AU - Held, Philip
AU - Herrmann, Harald
AU - Eigner, Christof
AU - Brecht, Benjamin
AU - Padberg, Laura
AU - Silberhorn, Christine
ID - 45850
IS - 14
JF - Optics Express
KW - Atomic and Molecular Physics
KW - and Optics
SN - 1094-4087
TI - Demonstration of Hong-Ou-Mandel interference in an LNOI directional coupler
VL - 31
ER -
TY - JOUR
AB - Die mit dem Forschenden Lernen verbundenen Verständnisse werden in der Literatur als vielfältig bewertet und die damit einhergehenden Auswirkungen als problematisch für Erforschung, hochschuldidaktische Umsetzung sowie Wirkungsannahmen gesehen (Huber & Reinmann, 2019). Vornehmlich in der Lehrkräftebildung entwickelte sich ein eigener Diskurs. Im vorliegenden Aufsatz wird dafür plädiert, die immer wieder benannte spezifische, berufsperspektivische Zielsetzung des Forschenden Lernens in der Lehrkräftebildung stärker theoretisch auszuformulieren, um die Verständnisklärung von Forschendem Lernen vor diesem Hintergrund vorantreiben zu können. Damit einhergehend werden aktuelle Forschungsbefunde und -erkenntnisse des Forschenden Lernens im Praxissemester in Deutschland berichtet und diskutiert. Es werden mögliche Ansatzpunkte für die theoretische Weiterentwicklung und damit verbundene Implikationen für die Praxis aufgezeigt.
AU - Bloh, Bea
AU - Homt, Martina
ID - 45870
IS - 1
JF - PraxisForschungLehrer*innenBildung. Zeitschrift für Schul- Und Professionsentwicklung. (PFLB)
TI - Forschungsperspektiven und -befunde zum Forschenden Lernen im Praxissemester. Plädoyer für eine Zielklärung
VL - 5
ER -
TY - JOUR
AU - Trier, Matthias
AU - Kundisch, Dennis
AU - Beverungen, Daniel
AU - Müller, Oliver
AU - Schryen, Guido
AU - Mirbabaie, Milad
AU - Trang, Simon
ID - 45872
JF - Business & Information Systems Engineering
KW - Information Systems
SN - 2363-7005
TI - Digital Responsibility
ER -
TY - JOUR
AB - BackgroundThe COVID-19 pandemic has led to a deepening of existing inequalities and a rollback of achievements made in gender equality. Women in Global Health (WGH) is a global movement that aims to achieve gender equality in health and increase female leadership in global health. Here, the aim was to understand how the pandemic affects the private and professional lives of women working in global health in different European countries. Suggestions for future pandemic preparedness including how gender perspectives should be integrated into pandemic preparedness and how a women's network such as WGH helped them to overcome the impact of the pandemic were explored.MethodsQualitative semi-structured interviews were conducted in September 2020 with a sample size of nine highly educated women with a mean age of 42.1 years from the different WGH European chapters. The participants were informed of the study and were formally asked for their consent. The interviews were held in English via an online videoconference platform and lasted 20–25 min each. The interviews were audio recorded and transcribed verbatim. Thematic analysis was conducted according to Mayring Qualitative Content Analysis using MAXQDA.ResultsThe pandemic has both positive and negative effects on the professional and private lives of women. It led to an increased workload and stress as well as pressure to publish on COVID-19-related themes. Increased childcare and household responsibilities represented a double burden. The available space was limited if other family members were also working from home. Positive aspects included more time for family or partners and reduced travel. The participants report on perceived gender differences in the experience of the pandemic. International cooperation is considered to be a key factor for future pandemic preparedness. Being part of a women's network such as WGH was perceived as being very supportive in difficult situations during the pandemic.ConclusionThis study provides unique insights into the experiences of women working in global health in different European countries. The COVID-19 pandemic influences their professional and private lives. Perceived gender differences are reported and suggest the need for integrating gender perspectives in pandemic preparedness. Networks for women, such as WGH, can facilitate the exchange of information in crises and provide women with professional and personal support.
AU - Hoffmann, Christina
AU - Schneider, Tamara
AU - Wannous, Chadia
AU - Nyberger, Karolina
AU - Haavardsson, Ingeborg
AU - Gilmore, Brynne
AU - Quigley, Paula
AU - Winkler, Andrea S.
AU - Ludwig, Sabine
ID - 42235
JF - Frontiers in Global Women's Health
KW - Industrial and Manufacturing Engineering
KW - Environmental Engineering
SN - 2673-5059
TI - Impact of COVID-19 on the private and professional lives of highly educated women working in global health in Europe—A qualitative study
VL - 4
ER -
TY - CHAP
AU - Götte, Thorsten
AU - Knollmann, Till
AU - Meyer auf der Heide, Friedhelm
AU - Scheideler, Christian
AU - Werthmann, Julian
ED - Haake, Claus-Jochen
ED - Meyer auf der Heide, Friedhelm
ED - Platzner, Marco
ED - Wachsmuth, Henning
ED - Wehrheim, Heike
ID - 45875
T2 - On-The-Fly Computing -- Individualized IT-services in dynamic markets
TI - Capabilities and Limitations of Local Strategies in Dynamic Networks
VL - 412
ER -
TY - CONF
AU - Brunner-Schwer, Christian
AU - Biegler, Max
AU - Rethmeier, Michael
AU - Schmolke, Tobias
AU - Meschut, Gerson
AU - Spohr, Sebastian
AU - Eckstein, Lutz
ID - 45877
TI - A life cycle assessment of joining processes in the automotive industry, illustrated by the example of an EV battery case
ER -
TY - CHAP
AU - Karl, Holger
AU - Maack, Marten
AU - Meyer auf der Heide, Friedhelm
AU - Pukrop, Simon
AU - Redder, Adrian
ED - Haake, Claus-Jochen
ED - Meyer auf der Heide, Friedhelm
ED - Platzner, Marco
ED - Wachsmuth, Henning
ED - Wehrheim, Heike
ID - 45895
T2 - On-The-Fly Computing -- Individualized IT-services in dynamic markets
TI - On-The-Fly Compute Centers II: Execution of Composed Services in Configurable Compute Centers
VL - 412
ER -
TY - CHAP
AU - Blömer, Johannes
AU - Bobolz, Jan
AU - Eidens, Fabian
AU - Jager, Tibor
AU - Kramer, Paul
ED - Haake, Claus-Jochen
ED - Meyer auf der Heide, Friedhelm
ED - Platzner, Marco
ED - Wachsmuth, Henning
ED - Wehrheim, Heike
ID - 45901
T2 - On-The-Fly Computing -- Individualized IT-services in dynamic markets
TI - Practical Cryptograhic Techniques for Secure and Privacy-Preserving Customer Loyalty Systems
VL - 412
ER -
TY - CHAP
AU - Boschmann, Alexander
AU - Clausing, Lennart
AU - Jentzsch, Felix
AU - Ghasemzadeh Mohammadi, Hassan
AU - Platzner, Marco
ED - Haake, Claus-Jochen
ED - Meyer auf der Heide, Friedhelm
ED - Platzner, Marco
ED - Wachsmuth, Henning
ED - Wehrheim, Heike
ID - 45899
T2 - On-The-Fly Computing -- Individualized IT-services in dynamic markets
TI - Flexible Industrial Analytics on Reconfigurable Systems-On-Chip
VL - 412
ER -
TY - CHAP
AU - Wehrheim, Heike
AU - Platzner, Marco
AU - Bodden, Eric
AU - Schubert, Philipp
AU - Pauck, Felix
AU - Jakobs, Marie-Christine
ED - Haake, Claus-Jochen
ED - Meyer auf der Heide, Friedhelm
ED - Platzner, Marco
ED - Wachsmuth, Henning
ED - Wehrheim, Heike
ID - 45888
T2 - On-The-Fly Computing -- Individualized IT-services in dynamic markets
TI - Verifying Software and Reconfigurable Hardware Services
VL - 412
ER -
TY - CHAP
AU - Gottschalk, Sebastian
AU - Vorbohle, Christian
AU - Kundisch, Dennis
AU - Engels, Gregor
AU - Wünderlich, Nacy V.
ED - Haake, Claus-Jochen
ED - Meyer auf der Heide, Friedhelm
ED - Platzner, Marco
ED - Wachsmuth, Henning
ED - Wehrheim, Heike
ID - 45897
T2 - On-The-Fly Computing -- Individualized IT-services in dynamic markets
TI - Architectural Management of OTF Computing Markets
VL - 412
ER -
TY - CHAP
AU - Blömer, Johannes
AU - Eidens, Fabian
AU - Jager, Tibor
AU - Niehues, David
AU - Scheideler, Christian
ED - Haake, Claus-Jochen
ED - Meyer auf der Heide, Friedhelm
ED - Platzner, Marco
ED - Wachsmuth, Henning
ED - Wehrheim, Heike
ID - 45891
T2 - On-The-Fly Computing -- Individualized IT-services in dynamic markets
TI - Robustness and Security
VL - 412
ER -
TY - CHAP
AU - Bäumer, Frederik Simon
AU - Chen, Wei-Fan
AU - Geierhos, Michaela
AU - Kersting, Joschka
AU - Wachsmuth, Henning
ED - Haake, Claus-Jochen
ED - Meyer auf der Heide, Friedhelm
ED - Platzner, Marco
ED - Wachsmuth, Henning
ED - Wehrheim, Heike
ID - 45882
T2 - On-The-Fly Computing -- Individualized IT-services in dynamic markets
TI - Dialogue-based Requirement Compensation and Style-adjusted Data-to-text Generation
VL - 412
ER -
TY - CHAP
AU - Hanselle, Jonas Manuel
AU - Hüllermeier, Eyke
AU - Mohr, Felix
AU - Ngonga Ngomo, Axel-Cyrille
AU - Sherif, Mohamed
AU - Tornede, Alexander
AU - Wever, Marcel Dominik
ED - Haake, Claus-Jochen
ED - Meyer auf der Heide, Friedhelm
ED - Platzner, Marco
ED - Wachsmuth, Henning
ED - Wehrheim, Heike
ID - 45884
T2 - On-The-Fly Computing -- Individualized IT-services in dynamic markets
TI - Configuration and Evaluation
VL - 412
ER -
TY - CHAP
AU - Haake, Claus-Jochen
AU - Hehenkamp, Burkhard
AU - Polevoy, Gleb
ED - Haake, Claus-Jochen
ED - Meyer auf der Heide, Friedhelm
ED - Platzner, Marco
ED - Wachsmuth, Henning
ED - Wehrheim, Heike
ID - 45878
T2 - On-The-Fly Computing -- Individualized IT-services in dynamic markets
TI - The Market for Services: Incentives, Algorithms, Implementation
VL - 412
ER -
TY - CHAP
AU - Wehrheim, Heike
AU - Hüllermeier, Eyke
AU - Becker, Steffen
AU - Becker, Matthias
AU - Richter, Cedric
AU - Sharma, Arnab
ED - Haake, Claus-Jochen
ED - Meyer auf der Heide, Friedhelm
ED - Platzner, Marco
ED - Wachsmuth, Henning
ED - Wehrheim, Heike
ID - 45886
T2 - On-The-Fly Computing -- Individualized IT-services in dynamic markets
TI - Composition Analysis in Unknown Contexts
VL - 412
ER -
TY - GEN
AB - Label noise poses an important challenge in machine learning, especially in
deep learning, in which large models with high expressive power dominate the
field. Models of that kind are prone to memorizing incorrect labels, thereby
harming generalization performance. Many methods have been proposed to address
this problem, including robust loss functions and more complex label correction
approaches. Robust loss functions are appealing due to their simplicity, but
typically lack flexibility, while label correction usually adds substantial
complexity to the training setup. In this paper, we suggest to address the
shortcomings of both methodologies by "ambiguating" the target information,
adding additional, complementary candidate labels in case the learner is not
sufficiently convinced of the observed training label. More precisely, we
leverage the framework of so-called superset learning to construct set-valued
targets based on a confidence threshold, which deliver imprecise yet more
reliable beliefs about the ground-truth, effectively helping the learner to
suppress the memorization effect. In an extensive empirical evaluation, our
method demonstrates favorable learning behavior on synthetic and real-world
noise, confirming the effectiveness in detecting and correcting erroneous
training labels.
AU - Lienen, Julian
AU - Hüllermeier, Eyke
ID - 45911
T2 - arXiv:2305.13764
TI - Mitigating Label Noise through Data Ambiguation
ER -
TY - GEN
AU - Raeisi Nafchi, Masood
ID - 45917
TI - Reconfigurable Random Forest Implementation on FPGA
ER -
TY - GEN
AU - Yadalam Murali Kumar, Nihal
ID - 45916
TI - Data Analytics for Predictive Maintenance of Time Series Data
ER -
TY - JOUR
AB - This paper aims to present an approach for the planning of carbon low heat supply in a future district heating system based on open data for German cities with existing district heating networks. One focus is on the integration of industrial waste heat and the uncertainty of future waste heat sources as well as restrictions on the use of biomass. For that purpose, knowledge about the energy demand is necessary. In a first step it is shown how the demand around a heating network is estimated with spatial data and a load profile is generated. Local available heat sources are examined according to their suitability and their kind of integration in the heating network. As heat production from different units are optimised, the development of a simulation model will be presented. The simulation is based on the optimisation of the operational costs of the used technologies for heating supply. Different scenarios covering various technologies and economic assumptions are applied. The results show the levelized costs of heating as well as the ecological performance. A sensitivity analysis shows the importance of uncertainties for the economic assumptions. The results showing levelized costs of heating as well as the ecological performance underlining the advantage of excess heat integration.
AU - Divkovic, Denis
AU - Knorr, Lukas
AU - Meschede, Henning
ID - 45931
JF - International Journal of Sustainable Energy Planning and Management
KW - Energy Engineering and Power Technology
KW - Renewable Energy
KW - Sustainability and the Environment
KW - Geography
KW - Planning and Development
SN - 2246-2929
TI - Design approach to extend and decarbonise existing district heating systems - case study for German cities
VL - 38
ER -
TY - JOUR
AB - Abstract
An error estimate for a canonical discretization of the harmonic map heat flow into spheres is derived. The numerical scheme uses standard finite elements with a nodal treatment of linearized unit-length constraints. The analysis is based on elementary approximation results and only uses the discrete weak formulation.
AU - Bartels, Sören
AU - Kovács, Balázs
AU - Wang, Zhangxian
ID - 45971
JF - IMA Journal of Numerical Analysis
KW - Applied Mathematics
KW - Computational Mathematics
KW - General Mathematics
SN - 0272-4979
TI - Error analysis for the numerical approximation of the harmonic map heat flow with nodal constraints
ER -
TY - JOUR
AB - Jede Schwangerschaft bringt physische, psychische und soziale Veränderungen mit sich. Diese können zu Stress und ambivalenten Gefühlen bei Schwangeren führen, die einen starken Einfluss auf das Wohlbefinden und die Gesundheit von Mutter und Kind haben. Zur Förderung eines komplikationslosen Verlaufs der Schwangerschaft wird in der Forschungsliteratur die Stärkung der gesundheitlichen Ressourcen gefordert. Das Zürcher Ressourcen Modell (ZRM) ist ein ressourcenaktivierendes Selbstmanagementtraining, welches nach aktuellen Studienergebnissen die Gefühlsregulierung unterstützen und Stress reduzieren kann. Ziel dieser Studie war die erstmalige Wirksamkeitsprüfung des ZRM in der Schwangerschaft. Angenommen wurde, dass durch die Aktivierung der persönlichen Ressourcen der Schwangeren das Stresserleben reduziert und das subjektive Wohlbefinden gesteigert werden kann. Die Konstrukte „Stress“ und „Wohlbefinden“ wurden anhand von fünf psychometrischen Parametern operationalisiert. Durchgeführt wurde eine quasiexperimentelle unkontrollierte 6‑stündige Online-Interventionsstudie mit dem ZRM im Januar 2021 an N = 32 Schwangeren, basierend auf einem Prä-Post-Follow-up-Design. Zur Überprüfung der gebildeten Hypothesen wurden einfaktorielle Varianzanalysen (rmANOVAs) durchgeführt.
Die 1-faktoriellen rmANOVAs ergaben, dass die ZRM-Intervention das Stresserleben allgemein und schwangerschaftsspezifisch sowie das Angsterleben signifikant senken konnte. Handlungsorientierung nach Misserfolg und emotionales Wohlbefinden konnten signifikant gesteigert werden. Hinsichtlich der subjektiven Vitalität ließ sich lediglich deskriptiv eine Steigerung der Werte verzeichnen.
Die ZRM-Intervention erwies sich als wirksame Methode zur Optimierung der Stressbewältigung und Steigerung des Wohlbefindens während der Schwangerschaft. Es kann zielführend sein, das ZRM-Training als Ergänzung zur üblichen Geburtsvorbereitung einzusetzen. Zukünftige Forschungsarbeiten sollten v. a. die Übertragbarkeit der Ergebnisse unter Einbindung einer Kontrollgruppe sicherstellen.
AU - Schneider, Tamara
AU - Weber, Julia
AU - Bauer, Nicola H.
ID - 45981
JF - Prävention und Gesundheitsförderung
KW - Public Health
KW - Environmental and Occupational Health
SN - 1861-6755
TI - „Löwenstark in der Schwangerschaft!“ Ressourcenaktivierung und Stressreduktion mit dem Zürcher Ressourcen Modell (ZRM®) – eine unkontrollierte Interventionsstudie
ER -
TY - CONF
AB - Variational Quantum Algorithms (VQAs), such as the Quantum Approximate
Optimization Algorithm (QAOA) of [Farhi, Goldstone, Gutmann, 2014], have seen
intense study towards near-term applications on quantum hardware. A crucial
parameter for VQAs is the depth of the variational ansatz used - the smaller
the depth, the more amenable the ansatz is to near-term quantum hardware in
that it gives the circuit a chance to be fully executed before the system
decoheres. This potential for depth reduction has made VQAs a staple of Noisy
Intermediate-Scale Quantum (NISQ)-era research.
In this work, we show that approximating the optimal depth for a given VQA
ansatz is intractable. Formally, we show that for any constant $\epsilon>0$, it
is QCMA-hard to approximate the optimal depth of a VQA ansatz within
multiplicative factor $N^{1-\epsilon}$, for $N$ denoting the encoding size of
the VQA instance. (Here, Quantum Classical Merlin-Arthur (QCMA) is a quantum
generalization of NP.) We then show that this hardness persists even in the
"simpler" setting of QAOAs. To our knowledge, this yields the first natural
QCMA-hard-to-approximate problems. To achieve these results, we bypass the need
for a PCP theorem for QCMA by appealing to the disperser-based NP-hardness of
approximation construction of [Umans, FOCS 1999].
AU - Bittel, Lennart
AU - Gharibian, Sevag
AU - Kliesch, Martin
ID - 34138
IS - 34
T2 - Proceedings of the 38th Computational Complexity Conference (CCC)
TI - The Optimal Depth of Variational Quantum Algorithms Is QCMA-Hard to Approximate
VL - 264
ER -
TY - CHAP
AU - Müller, Inez
ED - Böker, Ines
ID - 45990
SN - 978-3-8260-7919-1
T2 - Interkulturelle Konstellationen in Literaturwissenschaft und Literaturdidaktik. Festschrift für Michael Hofmann
TI - Zur Darstellung der Afrikanischen Europäerin in Geschichte und Gegenwart - Sharon Dodua Otoos Roman 'Adas Raum'
ER -
TY - CHAP
AU - Elrich, Alina
AU - Kaimann, Daniel
AU - Fahr, René
AU - Kundisch, Dennis
AU - Mir Djawadi, Behnud
AU - Müller, Michelle
AU - Poniatowski, Martin
AU - Schäfers, Sabrina
AU - Frick, Bernd
ED - Haake, Claus-Jochen
ED - Meyer auf der Heide, Friedhelm
ED - Platzner, Marco
ED - Wachsmuth, Henning
ED - Wehrheim, Heike
ID - 45880
T2 - On-The-Fly Computing -- Individualized IT-services in dynamic markets
TI - Empirical Analysis in Markets for OTF Services
VL - 412
ER -
TY - JOUR
AU - Su, Ran
AU - Zhang, Jiahui
AU - Wong, Vienna
AU - Zhang, Dawei
AU - Yang, Yong
AU - Luo, Zheng‐Dong
AU - Wang, Xiaojing
AU - Wen, Hui
AU - Liu, Yang
AU - Seidel, Jan
AU - Yang, Xiaolong
AU - Pan, Ying
AU - Li, Fa‐tang
ID - 46018
JF - Advanced Materials
KW - Mechanical Engineering
KW - Mechanics of Materials
KW - General Materials Science
SN - 0935-9648
TI - Engineering Sub‐Nanometer Hafnia‐Based Ferroelectric to Break The Scaling Relation for High‐Efficiency Piezocatalytic Water Splitting
ER -
TY - BOOK
AU - Schreckenberg, Carolin
ID - 46031
SN - 978-3-8288-4924-2
TI - Die junge Käthe Kollwitz in ihrer künstlerischen Findungsphase
VL - KONTEXT Kunst – Vermittlung – Kulturelle Bildung
ER -
TY - JOUR
AB - Intending to counteract Klein’s second discontinuity in teacher education, we explored and applied the innovation of “interface ePortfolio” in the context of a geometry course for preservice teachers (PSTs). The tool offers the possibility of implementing the design principle of profession orientation. In the article, we theoretically clarify what we understand by this principle and locate our innovative concept against this theoretical background. We empirically investigate the extent to which counteraction against the second discontinuity is successful by analyzing reflection texts created in the interface ePortfolio, focusing on PSTs’ perspectives. Our qualitative content analysis shows that most of them perceive the innovation as helpful in the intended sense and indicates that the course concept, in general, and the interface ePortfolio, in particular, have helped establish relevant links between the course content and their later work as teachers.
AU - Hoffmann, Max
AU - Biehler, Rolf
ID - 45786
JF - ZDM – Mathematics Education
KW - General Mathematics
KW - Education
SN - 1863-9690
TI - Implementing profession orientation as a design principle for overcoming Klein’s second discontinuity – preservice teacher’s perspectives on interface activities in the context of a geometry course
ER -
TY - JOUR
AU - Fochmann, Martin
AU - Heinemann-Heile, Vanessa
AU - Huber, Hans-Peter
AU - Maiterth, Ralf
AU - Sureth-Sloane, Caren
ID - 42897
IS - 2
JF - Steuer und Wirtschaft
TI - Zusatzkosten der Besteuerung – Eine Analyse des steuerlichen Verwaltungsaufwands und der subjektiv wahrgenommenen Steuerbelastung
VL - 100
ER -
TY - JOUR
AU - Dieter, Peter
AU - Stumpe, Miriam
AU - Ulmer, Marlin Wolf
AU - Schryen, Guido
ID - 45816
JF - Transportation Research Part D
TI - Anticipatory Assignment of Passengers to Meeting Points for Taxi-Ridesharing
VL - 121
ER -
TY - JOUR
AB - DNA origami nanostructures have emerged as functional materials for applications in various areas of science and technology. In particular, the transfer of the DNA origami shape into inorganic materials using...
AU - Pothineni, Bhanu Kiran
AU - Grundmeier, Guido
AU - Keller, Adrian
ID - 46061
JF - Nanoscale
KW - General Materials Science
SN - 2040-3364
TI - Cation-dependent assembly of hexagonal DNA origami lattices on SiO2 surfaces
ER -
TY - THES
AU - Pukrop, Simon
ID - 45781
TI - On Cloud Assisted, Restricted, and Reosurce Constrained Scheduling
ER -
TY - GEN
AU - Schneider, Fabian
ID - 46053
TI - Utilizing Redundancy in Distributed Heterogeneous Storage
ER -
TY - CHAP
AU - Schwabl, Franziska
AU - Daniel-Söltenfuß, Desiree
ID - 45918
SN - 2512-1170
T2 - Organisation zwischen Theorie und Praxis
TI - Gelingensbedingungen gestaltungsorientierter Schulentwicklung
ER -
TY - GEN
AU - Raeisi Nafchi, Masood
ID - 46075
TI - Reconfigurable Random Forest Implementation on FPGA
ER -
TY - CHAP
AU - Harnack, Maria
ED - Drascek, Daniel
ED - Groschwitz , Helmut
ED - Wolf, Gabriele
ID - 41849
T2 - Kulturerbe als kulturelle Praxis – Kulturerbe in der Beratungspraxis
TI - Potenziale der Kulturerbe-Konvention von 2003. Beispiele aus der Beratungspraxis der Landesstelle Immaterielles Kulturerbe NRW
ER -
TY - CHAP
AU - Mir Djawadi, Behnud
AU - Plaß, Sabrina
AU - Schäfers, Sabrina
ED - Gabbioneta, Claudia
ED - Clemente, Marco
ED - Greenwood, Royston
ID - 46088
SN - 0733-558X
T2 - Organizational Wrongdoing as the “Foundational” Grand Challenge: Consequences and Impact
TI - Peers: Powerful or Negligible? A Systematic Review on Peer Factors and Internal Whistleblowing
VL - 85
ER -
TY - GEN
AU - Ranade, Amruta
ID - 46087
TI - Graph Neural Network-based Anomaly Detection in Smart Grid Energy Consumption
ER -
TY - GEN
AU - Ali, Osama
ID - 46086
TI - Highly accurate deep compressed facial recognition
ER -
TY - JOUR
AU - Hinrichs, Benjamin
AU - Janssen, Daan W.
AU - Ziebell, Jobst
ID - 46100
IS - 1
JF - Journal of Mathematical Analysis and Applications
KW - Applied Mathematics
KW - Analysis
SN - 0022-247X
TI - Super-Gaussian decay of exponentials: A sufficient condition
VL - 528
ER -
TY - GEN
AU - Leineweber, Jonas
ID - 46102
TI - Tagungsbericht: 10/20 Jahre UNESCO-Konvention zum Erhalt des Immateriellen Kulturerbes – Auftaktveranstaltung zum Doppeljubiläum
ER -
TY - GEN
ED - Papenbrock, Martin
ED - Tophinke, Doris
ID - 45674
T2 - Kunst und Politik
TI - Politisches Graffiti
VL - 24
ER -
TY - CHAP
AU - Husic, Ahmed
ED - Khalilizand, Mansooreh
ID - 45702
T2 - The Attributes of God in Islamic Thought: Contemplating Allah
TI - The Omnipotence (al-qudra) and the Will of God (al-irāda) in the Theology of Sayf ad-Dīn al-Āmidī
ER -
TY - GEN
AU - Ashri, Nivedita
ID - 46110
TI - Virtual On-Demand Volunteer System Based on Delaunay Triangulation
ER -
TY - GEN
AB - Let $X=X_1\times X_2$ be a product of two rank one symmetric spaces of
non-compact type and $\Gamma$ a torsion-free discrete subgroup in $G_1\times
G_2$. We show that the spectrum of $\Gamma \backslash X$ is related to the
asymptotic growth of $\Gamma$ in the two direction defined by the two factors.
We obtain that $L^2(\Gamma \backslash G)$ is tempered for large class of
$\Gamma$.
AU - Weich, Tobias
AU - Wolf, Lasse L.
ID - 46117
T2 - arXiv:2304.09573
TI - Temperedness of locally symmetric spaces: The product case
ER -
TY - CHAP
AU - Kruse, Iris
AU - Kanning, Julian
ED - Kruse, Iris
ED - Kanning, Julian
ID - 42043
SN - 978-3-96848-101-2
T2 - So viel Größenwahn muss sein! Kinderliteratur, Schule und Gesellschaft. Zum Bildungsauftrag des Literaturunterrichts in der Grundschule.
TI - Nie wieder! Plädoyer für eine ‚Fragen-generierende-Didaktik-des-staunenden-Erschreckens‘ mit Kinderliteratur zum Holocaust
ER -
TY - CHAP
AU - Kruse, Iris
AU - Kanning, Julian
ED - Kruse, Iris
ED - Kanning, Julian
ID - 45761
SN - 978-3-96848-101-2
T2 - „So viel Größenwahn muss sein!”
TI - Kinderliteratur und die Bildungsverantwortung des Literaturunterrichts. Kindliches Lesen in individueller und gesellschaftlicher Bedeutung.
ER -
TY - CHAP
AU - Kruse, Iris
AU - Terhorst, Sarah
ED - Kruse, Iris
ED - Kanning, Julian
ID - 45760
SN - 978-3-96848-101-2
T2 - „So viel Größenwahn muss sein!”
TI - Arm und ausgegrenzt. Kinderarmut in der Literatur und im lesenden Klassenzimmer.
ER -
TY - JOUR
AB - Sport-related concussions (SRC) are characterized by impaired autonomic control. Heart rate variability (HRV) offers easily obtainable diagnostic approaches to SRC-associated dysautonomia, but studies investigating HRV during sleep, a crucial time for post-traumatic cerebral regeneration, are relatively sparse. The aim of this study was to assess nocturnal HRV in athletes during their return to sports (RTS) after SRC in their home environment using wireless wrist sensors (E4, Empatica, Milan, Italy) and to explore possible relations with clinical concussion-associated sleep symptoms. Eighteen SRC athletes wore a wrist sensor obtaining photoplethysmographic data at night during RTS as well as one night after full clinical recovery post RTS (>3 weeks). Nocturnal heart rate and parasympathetic activity of HRV (RMSSD) were calculated and compared using the Mann–Whitney U Test to values of eighteen; matched by sex, age, sport, and expertise, control athletes underwent the identical protocol. During RTS, nocturnal RMSSD of SRC athletes (Mdn = 77.74 ms) showed a trend compared to controls (Mdn = 95.68 ms, p = 0.021, r = −0.382, p adjusted using false discovery rate = 0.126) and positively correlated to “drowsiness” (r = 0.523, p = 0.023, p adjusted = 0.046). Post RTS, no differences in RMSSD between groups were detected. The presented findings in nocturnal cardiac parasympathetic activity during nights of RTS in SRC athletes might be a result of concussion, although its relation to recovery still needs to be elucidated. Utilization of wireless sensors and wearable technologies in home-based settings offer a possibility to obtain helpful objective data in the management of SRC.
AU - Delling, Anne Carina
AU - Jakobsmeyer, Rasmus
AU - Coenen, Jessica
AU - Christiansen, Nele
AU - Reinsberger, Claus
ID - 45859
IS - 9
JF - Sensors
KW - Electrical and Electronic Engineering
KW - Biochemistry
KW - Instrumentation
KW - Atomic and Molecular Physics
KW - and Optics
KW - Analytical Chemistry
SN - 1424-8220
TI - Home-Based Measurements of Nocturnal Cardiac Parasympathetic Activity in Athletes during Return to Sport after Sport-Related Concussion
VL - 23
ER -
TY - JOUR
AU - Bopp, Frederik
AU - Schall, Johannes
AU - Bart, Nikolai
AU - Vögl, Florian
AU - Cullip, Charlotte
AU - Sbresny, Friedrich
AU - Boos, Katarina
AU - Thalacker, Christopher
AU - Lienhart, Michelle
AU - Rodt, Sven
AU - Reuter, Dirk
AU - Ludwig, Arne
AU - Wieck, Andreas D.
AU - Reitzenstein, Stephan
AU - Müller, Kai
AU - Finley, Jonathan J.
ID - 46133
IS - 16
JF - Physical Review B
SN - 2469-9950
TI - Coherent driving of direct and indirect excitons in a quantum dot molecule
VL - 107
ER -
TY - JOUR
AU - Littmann, Mario
AU - Reuter, Dirk
AU - As, Donat Josef
ID - 46132
IS - 7
JF - physica status solidi (b)
KW - Condensed Matter Physics
KW - Electronic
KW - Optical and Magnetic Materials
SN - 0370-1972
TI - Remote Epitaxy of Cubic Gallium Nitride on Graphene‐Covered 3C‐SiC Substrates by Plasma‐Assisted Molecular Beam Epitaxy
VL - 260
ER -
TY - CHAP
AU - Kruse, Iris
AU - Kanning, Julian
ED - Kruse, Iris
ED - Kanning, Julian
ID - 46125
SN - 978-3-96848-101-2
T2 - So viel Größenwahn muss sein! Kinderliteratur, Schule und Gesellschaft. Zum Bildungsauftrag des Literaturunterrichts in der Grundschule.
TI - "So viel Größenwahn muss sein!". Zur Einführung.
ER -
TY - JOUR
AB - Zusammenfassung
Einleitung Motorische Symptome bei Morbus Parkinson lassen sich durch
körperliche Aktivität modifizieren. Inwiefern dies auch
für nicht-motorische, autonome Symptome gilt, ist weitaus weniger
bekannt. Die Erkrankung weist zudem eine Vielzahl an geschlechterspezifischen
Unterschieden auf. Epidemiologische Untersuchungen deuten zum Beispiel auf einen
besseren primärpräventiven Effekt durch körperliche
Aktivität bei Männern als bei Frauen hin. Daten zu
geschlechterspezifischen Effekten auf das autonome Nervensystem sind jedoch
limitiert. Im Rahmen der vorliegenden Pilotstudie sollen mögliche
geschlechterspezifische Effekte einer Bewegungsintervention auf
Störungen der hämodynamischen Regulation als Manifestation
nicht-motorischer Symptome untersucht werden. Diese sind aufgrund ihrer oft
gegensätzlichen hypo- und hypertonen Ausprägung schwierig
medikamentös zu behandeln, lassen sich aber gegebenenfalls durch
Bewegungsinterventionen modifizieren.
Methodik Bei 42 Patienten und Patientinnen (Alter: 70,3 Jahre; 24
Männer; 18 Frauen) wurden vor und nach einer mehrwöchigen,
stationären Parkinsonkomplexbehandlung hämodynamische Parameter
in einem Schellongtest untersucht. Mittels anschließender
Regressionsanalyse erfolgte eine Quantifizierung der Abhängigkeit von
den Faktoren Alter, Body Mass Index, Krankheitsdauer, Vorerkrankungen,
Sitzendblutdruck und hypotensiv wirkender Medikamente.
Ergebnis Bei 44% der Männer und 46% der Frauen
traten hämodynamische Regulationsstörungen im Stand und in
Rückenlage mindestens einmal auf. Eine vor Therapiebeginn
präsentierte Regulationsstörung im Stand zeigte sich in keiner
Geschlechtergruppe durch die Parkinsonkomplexbehandlung verändert.
Frauen zeigten zu Therapieende jedoch einen signifikant niedrigeren Blutdruck im
Liegen (p=0,022*). Unabhängig von der Komplextherapie
fiel der Blutdruck in Rückenlage bei Frauen nach Orthostasebelastung
höher aus als davor (vor Therapie: p=0,015 *;
nach Therapie: p=0,021*). Jedes Lebensjahr erhöhte das
Risiko für eine hämodynamische Regulationsstörung in
Rückenlage in der Gesamtgruppe um 12,4% (Regressionskoeffizient
B=0,117; p=0,014 *; Exp(B)=1,124).
Schlussfolgerung Systematische Effekte auf Blutdruckwerte im Rahmen von
Orthostasereaktionen durch eine Parkinsonkomplexbehandlung konnten nicht
nachgewiesen werden. Allerdings zeigte sich bei Frauen nach
Parkinsonkomplexbehandlung eine Senkung der Blutdruckwerte in
Rückenlage. Das scheinbar unsystematische, teils geschlechterspezifische
Auftreten hämodynamischer Regulationsstörungen fordert ein
individualmedizinisch angelegtes Vorgehen im therapeutischen Alltag.
AU - Siche-Pantel, Franziska
AU - Jakobsmeyer, Rasmus
AU - Buschfort, Rüdiger
AU - Mühlenberg, Manfred
AU - Michels, Heinke
AU - Oesterschlink, Julian
AU - Reinsberger, Claus
ID - 46137
IS - 02
JF - B&G Bewegungstherapie und Gesundheitssport
KW - General Medicine
SN - 1613-0863
TI - Geschlechterspezifische Effekte in der bewegungstherapeutischen Behandlung von hämodynamischen Regulationsstörungen bei Morbus Parkinson
VL - 39
ER -
TY - JOUR
AB - This work reports a fully guided setup for single-mode squeezing on integrated titanium-indiffused periodically poled nonlinear resonators. A continuous-wave laser beam is delivered and the squeezed field is collected by single-mode fibers; up to −3.17(9) dB of useful squeezing is available in fibers. To showcase the usefulness of such a fiber-coupled device, we applied the generated squeezed light in a fiber-based phase sensing experiment, showing a quantum enhancement in the signal-to-noise ratio of 0.35 dB. Moreover, our investigation of the effect of photorefraction on the cavity resonance condition suggests that it causes system instabilities at high powers.
AU - Domeneguetti, Renato
AU - Stefszky, Michael
AU - Herrmann, Harald
AU - Silberhorn, Christine
AU - Andersen, Ulrik L.
AU - Neergaard-Nielsen, Jonas S.
AU - Gehring, Tobias
ID - 46138
IS - 11
JF - Optics Letters
KW - Atomic and Molecular Physics
KW - and Optics
SN - 0146-9592
TI - Fully guided and phase locked Ti:PPLN waveguide squeezing for applications in quantum sensing
VL - 48
ER -
TY - JOUR
AU - Brosch, Anian
AU - Tinazzi, Fabio
AU - Wallscheid, Oliver
AU - Zigliotto, Mauro
AU - Böcker, Joachim
ID - 46147
JF - IEEE Transactions on Power Electronics
KW - Electrical and Electronic Engineering
SN - 0885-8993
TI - Finite Set Sensorless Control With Minimum a Priori Knowledge and Tuning Effort for Interior Permanent Magnet Synchronous Motors
ER -
TY - CHAP
AU - Janzen, Thomas
AU - Gabel, Stephan
AU - Gampert, Martha
AU - Matz, Frauke
AU - Reckermann, Julia
ED - Mrohs, Lorenz
ED - Hess, Miriam
ED - Lindner, Konstantin
ED - Schlüter, Julia
ED - Overhage, Sven
ID - 46154
T2 - Digitalisierung in der Hochschullehre – Perspektiven und Gestaltungsoptionen
TI - Das DigitELE Tutorial: Eine digitale Lernumgebung in der Englischdidaktik
ER -
TY - JOUR
AB - The rise of exascale supercomputers has fueled competition among GPU vendors, driving lattice QCD developers to write code that supports multiple APIs. Moreover, new developments in algorithms and physics research require frequent updates to existing software. These challenges have to be balanced against constantly changing personnel. At the same time, there is a wide range of applications for HISQ fermions in QCD studies. This situation encourages the development of software featuring a HISQ action that is flexible, high-performing, open source, easy to use, and easy to adapt. In this technical paper, we explain the design strategy, provide implementation details, list available algorithms and modules, and show key performance indicators for SIMULATeQCD, a simple multi-GPU lattice code for large-scale QCD calculations, mainly developed and used by the HotQCD collaboration. The code is publicly available on GitHub.
AU - Mazur, Lukas
AU - Bollweg, Dennis
AU - Clarke, David A.
AU - Altenkort, Luis
AU - Kaczmarek, Olaf
AU - Larsen, Rasmus
AU - Shu, Hai-Tao
AU - Goswami, Jishnu
AU - Scior, Philipp
AU - Sandmeyer, Hauke
AU - Neumann, Marius
AU - Dick, Henrik
AU - Ali, Sajid
AU - Kim, Jangho
AU - Schmidt, Christian
AU - Petreczky, Peter
AU - Mukherjee, Swagato
ID - 46120
JF - Computer Physics Communications
TI - SIMULATeQCD: A simple multi-GPU lattice code for QCD calculations
ER -
TY - JOUR
AU - Altenkort, Luis
AU - Eller, Alexander M.
AU - Francis, Anthony
AU - Kaczmarek, Olaf
AU - Mazur, Lukas
AU - Moore, Guy D.
AU - Shu, Hai-Tao
ID - 46119
IS - 1
JF - Physical Review D
SN - 2470-0010
TI - Viscosity of pure-glue QCD from the lattice
VL - 108
ER -
TY - JOUR
AU - Bruns, Julia
AU - Hagena, Maike
AU - Gasteiger, Hedwig
ID - 46155
JF - Teaching and Teacher Education
KW - Education
SN - 0742-051X
TI - Professional Development Enacted by Facilitators in the Context of Early Mathematics Education: Scaling up or Dilution of Effects?
VL - 132
ER -
TY - BOOK
ED - Biehler, Rolf
ED - Liebendörfer, Michael
ED - Gueudet, Ghislaine
ED - Rasmussen, Chris
ED - Winsløw, Carl
ID - 46157
SN - 1869-4918
TI - Practice-Oriented Research in Tertiary Mathematics Education
ER -
TY - CHAP
AU - Kostan, Anastassija
ED - Loos, Christian
ED - Stephan, Paul
ID - 46174
T2 - Widerständige Glieder. Der Leib als politischer Standort
TI - Feministische Neomaterialismen: Die ontologische Immanenz und posthumanistische Performativität von Natur, Kultur und Technik
ER -
TY - JOUR
AB - While FPGA accelerator boards and their respective high-level design tools are maturing, there is still a lack of multi-FPGA applications, libraries, and not least, benchmarks and reference implementations towards sustained HPC usage of these devices. As in the early days of GPUs in HPC, for workloads that can reasonably be decoupled into loosely coupled working sets, multi-accelerator support can be achieved by using standard communication interfaces like MPI on the host side. However, for performance and productivity, some applications can profit from a tighter coupling of the accelerators. FPGAs offer unique opportunities here when extending the dataflow characteristics to their communication interfaces.
In this work, we extend the HPCC FPGA benchmark suite by multi-FPGA support and three missing benchmarks that particularly characterize or stress inter-device communication: b_eff, PTRANS, and LINPACK. With all benchmarks implemented for current boards with Intel and Xilinx FPGAs, we established a baseline for multi-FPGA performance. Additionally, for the communication-centric benchmarks, we explored the potential of direct FPGA-to-FPGA communication with a circuit-switched inter-FPGA network that is currently only available for one of the boards. The evaluation with parallel execution on up to 26 FPGA boards makes use of one of the largest academic FPGA installations.
AU - Meyer, Marius
AU - Kenter, Tobias
AU - Plessl, Christian
ID - 38041
JF - ACM Transactions on Reconfigurable Technology and Systems
KW - General Computer Science
SN - 1936-7406
TI - Multi-FPGA Designs and Scaling of HPC Challenge Benchmarks via MPI and Circuit-Switched Inter-FPGA Networks
ER -
TY - CHAP
AU - Topalović, Elvira
AU - Drepper, Laura
AU - Härtel, Kira
ED - Bangel, Melanie
ED - Rautenberg, Iris
ID - 46180
T2 - Schriftspracherwerb im Spannungsfeld zwischen Wissen und Können
TI - Lerngegenstand „Doppelkonsonanz“ in der Grundschule: Explizites und implizites Lernen im Längsschnitt
ER -
TY - CHAP
AU - Hansmeier, Tim
AU - Kenter, Tobias
AU - Meyer, Marius
AU - Riebler, Heinrich
AU - Platzner, Marco
AU - Plessl, Christian
ED - Haake, Claus-Jochen
ED - Meyer auf der Heide, Friedhelm
ED - Platzner, Marco
ED - Wachsmuth, Henning
ED - Wehrheim, Heike
ID - 45893
T2 - On-The-Fly Computing -- Individualized IT-services in dynamic markets
TI - Compute Centers I: Heterogeneous Execution Environments
VL - 412
ER -
TY - CONF
AU - Opdenhövel, Jan-Oliver
AU - Plessl, Christian
AU - Kenter, Tobias
ID - 46190
T2 - Proceedings of the 13th International Symposium on Highly Efficient Accelerators and Reconfigurable Technologies
TI - Mutation Tree Reconstruction of Tumor Cells on FPGAs Using a Bit-Level Matrix Representation
ER -
TY - CONF
AU - Faj, Jennifer
AU - Kenter, Tobias
AU - Faghih-Naini, Sara
AU - Plessl, Christian
AU - Aizinger, Vadym
ID - 46188
T2 - Proceedings of the Platform for Advanced Scientific Computing Conference
TI - Scalable Multi-FPGA Design of a Discontinuous Galerkin Shallow-Water Model on Unstructured Meshes
ER -
TY - CONF
AU - Prouveur, Charles
AU - Haefele, Matthieu
AU - Kenter, Tobias
AU - Voss, Nils
ID - 46189
T2 - Proceedings of the Platform for Advanced Scientific Computing Conference
TI - FPGA Acceleration for HPC Supercapacitor Simulations
ER -
TY - CHAP
AB - We present a concept for quantifying evaluative phrases to later compare rating texts numerically instead of just relying on stars or grades. We achievethis by combining deep learning models in an aspect-based sentiment analysis pipeline along with sentiment weighting, polarity, and correlation analyses that combine deep learning results with metadata. The results provide new insights for the medical field. Our application domain, physician reviews, shows that there are millions of review texts on the Internet that cannot yet be comprehensively analyzed because previous studies have focused on explicit aspects from other domains (e.g., products). We identify, extract, and classify implicit and explicit aspect phrases equally from German-language review texts. To do so, we annotated aspect phrases representing reviews on numerous aspects of a physician, medical practice, or practice staff. We apply the best performing transformer model, XLM-RoBERTa, to a large physician review dataset and correlate the results with existing metadata. As a result, we can show different correlations between the sentiment polarity of certain aspect classes (e.g., friendliness, practice equipment) and physicians’ professions (e.g., surgeon, ophthalmologist). As a result, we have individual numerical scores that contain a variety of information based on deep learning algorithms that extract textual (evaluative) information and metadata from the Web.
AU - Kersting, Joschka
AU - Geierhos, Michaela
ED - Cuzzocrea, Alfredo
ED - Gusikhin, Oleg
ED - Hammoudi, Slimane
ED - Quix, Christoph
ID - 46205
SN - 1865-0929
T2 - Data Management Technologies and Applications
TI - Towards Comparable Ratings: Quantifying Evaluative Phrases in Physician Reviews
VL - 1860
ER -
TY - JOUR
AU - Ficara, Elena
AU - Beall, Jc
ID - 46209
IS - 2
JF - History and Philosophy of Logic
TI - Hegelian Conjunction, Hegelian Contradiction
VL - 44
ER -
TY - JOUR
AU - Ficara, Elena
AU - Priest, Graham
ID - 46210
IS - 2
JF - History and Philosophy of Logic
TI - The Formalization of Dialectics
VL - 44
ER -
TY - JOUR
AU - Weber, Daniel
AU - Schenke, Maximilian
AU - Wallscheid, Oliver
ID - 46213
JF - IEEE Access
KW - General Engineering
KW - General Materials Science
KW - General Computer Science
KW - Electrical and Electronic Engineering
SN - 2169-3536
TI - Steady-State Error Compensation for Reinforcement Learning-Based Control of Power Electronic Systems
VL - 11
ER -
TY - CONF
AU - Weber, Daniel
AU - Schenke, Maximilian
AU - Wallscheid, Oliver
ID - 46212
T2 - 2023 International Conference on Future Energy Solutions (FES)
TI - Safe Reinforcement Learning-Based Control in Power Electronic Systems
ER -
TY - JOUR
AB - Ernährungsarmut wird als Problem in Deutschland weitgehend vernachlässigt. Von materieller Ernährungsarmut betroffen sind Menschen, denen es aufgrund fehlender finanzieller Mittel nicht möglich ist, sich gesundheitsfördernd zu ernähren. Etwa 3,5 % der Bevölkerung (rund drei Millionen Menschen) sind durch materielle Ernährungsarmut gefährdet. Damit einher geht oft auch soziale Ernährungsarmut, die Menschen von der sozialen Teilhabe ausschließt, die z. B. durch gemeinsames Essen ermöglicht wird. Essen ist nicht nur von Bedeutung für die körperliche Gesundheit, sondern auch zentral für die psychische Gesundheit und das Wohlbefinden sowie für die soziale Zugehörigkeit, was sich wiederum auf die körperliche Gesundheit auswirkt. Die sozialen Funktionen des Essens werden vielfach übersehen – und bei der Berechnung des Regelbedarfs ausgeblendet. Gerade die Corona-Pandemie hat gezeigt, wie fehlende soziale Kontakte und sozialer Ausschluss sich auf die physische, psychische und soziale Gesundheit auswirken können. Aus Sicht des WBAE (Wissenschaftliche Beirat für Agrarpolitik, Ernährung und gesundheitlichen Verbraucherschutz) ist deshalb der integrative Blick auf die materielle und soziale Ernährungsarmut zentral, da sie sich gegenseitig verstärken können. Diese Stellungnahme befasst sich mit der Frage, wie sich die Corona-Pandemie auf von Ernährungsarmut gefährdete Menschen ausgewirkt hat und was daraus gelernt werden kann. Ein wichtiger Aspekt ist der zeitweilige Wegfall von Essensangeboten in Kitas, Schulen, Tafeln und anderen karitativen Essensangeboten, die ein Sicherheitsnetz für Menschen in Ernährungsarmut darstellen. Die Stellungnahme zieht auf dieser Basis auch Schluss-folgerungen zur Ernährungsarmut außerhalb von Pandemiebedingungen. Im Hinblick auf die Notwendigkeit der Vermeidung von Fehlernährung in Haushalten, die von Ernährungsarmut bedroht sind, kommt der WBAE zu dem Schluss, dass diese Risikogruppe während der Pandemie nicht ausreichend im Fokus der Maßnahmen zur Abmilderung der Pandemiefolgen stand. Dies zeigt sich schon daran, dass kaum Daten erhoben wurden. Deutschland verfügt über kein klares Indikatoren- und Zielsystem und kein Monitoring zur Ernährungsarmut. Die wenigen vorhandenen Daten weisen auf problematische Entwicklungen hin. Insgesamt wurden durch den Bund sehr umfangreiche Mittel zur Bewältigung der wirtschaftlichen und sozialen Folgen der Corona-Pandemie und zur Einkommenssicherung während der Pandemie eingesetzt. Dies ist unter dem Blickwinkel „Ernährungsarmut” positiv zu bewerten. Es ist davon auszugehen, dass diese Maßnahmen verhindert haben, dass noch mehr Haushalte von Ernährungsarmut betroffen waren. Insgesamt zeigt die Analyse jedoch, dass es kaum gezielte Maßnahmen gab, um den Ausfall von Kita- und Schulernährung durch alternative Formen der Bereitstellung von Lebensmitteln oder einer warmen Mahlzeit aufzufangen. Maßnahmen auf Bundesebene fehlten, um Länder, Kommunen und nicht-staatliche Organisationen dabei zu unterstützen. Auswertungen der Pandemiemaßnahmen vergleichbarer Länder zeigen, dass dort schnelle und flexible Maßnahmen zur Bereitstellung von Lebensmitteln eine wichtige Rolle gespielt haben, um armutsgefährdete Haushalte zu unterstützen. In Deutschland wurden vorwiegend finanzielle Transfers genutzt, z. T. zeitlich verzögert und wenig zielgruppenspezifisch. Vor diesem Hintergrund hat der WBAE mögliche Maßnahmen gegen Ernährungsarmut – in Krisen, aber auch generell – untersucht: (1) finanzielle Transfers (einmalig oder fortlaufend), (2) Lebensmittelgutscheine („Voucher“), (3) Lebensmittelpakete und (4) warme Mahlzeiten, wobei die letzten beiden Optionen jeweils zur Abholung oder zur Auslieferung angeboten werden können. Die untersuchten internationalen Beispiele zeigen Möglichkeiten, wie z. T. mit schnellen und teilweise innovativen Ansätzen auf Lockdown-Maßnahmen reagiert wurde. Im Grundsatz spricht aus Sicht des WBAE aber vieles für das deutsche System zur Bekämpfung der Ernährungsarmut, das im Kern auf einem Bürgergeld beruht. Ein solches Bürgergeld muss jedoch ausreichend sein, um materielle und soziale Ernährungsarmut zu vermeiden. Die aktuellen, im Bürgergeld für Essen und Getränke zur Verfügung stehenden Beträge entsprechen allerdings nicht diesem Anspruch. Bei der Einführung des Bürgergelds im Jahr 2023 wurde zwar zeitnah auf die hohe Inflation reagiert. Die Berechnungsmethodik für die Bedarfsermittlung wurde aber nicht angepasst, sodass der Regelsatz nach wie vor nicht für eine gesundheitsfördernde Ernährung ausreicht. Die soziale Funktion von Ernährung wird bei der Berechnung des Regelsatzes nicht berücksichtigt. Um bei akutem Handlungsbedarf, wie z. B. auch bei der derzeitigen Inflation, schneller reagieren zu können, sollten außerdem Systeme zur Auszahlung sozial differenzierter „Krisentransfers” an vulnerable Haushalte mit geringem Verwaltungsaufwand ermöglicht werden. Darüber hinaus sollte für den zentralen Bereich der Kinder-ernährung der Schutz einer adäquaten Grundsicherung durch einen Systemwechsel zu einer integrativen, beitragsfreien und somit nicht-diskriminierenden Kita- und Schulverpflegung ergänzt werden, die zudem den DGE-Qualitätsstandards entspricht. Schließlich sollte der Staat privates, ehrenamtliches Engagement ergänzend fördern, z. B. durch Infrastrukturunterstützung bei karitativen Essensangeboten. Eine Herausforderung der Gestaltung von karitativen Lebensmittelangeboten besteht darin, dass sie oft als stigmatisierend und beschämend wahrgenommen werden und der Nachweis eines Anspruches teils schwierig ist. Zudem bestehen oft nur wenige Wahlmöglichkeiten, sodass individuelle Präferenzen oder Unverträglichkeiten nur sehr eingeschränkt berücksichtigt werden können. Im Hinblick auf die soziale Dimension der Ernährung kommt hinzu, dass wichtige soziale Funktionen des Essens, wie das gemeinsame Essen, also Kommensalität, nicht oder nur sehr eingeschränkt ermöglicht wird. Auch bleiben diejenigen, die versorgt werden, dabei meist unter sich. Vor dem Hintergrund dieser Gesamteinschätzung empfiehlt der WBAE die folgenden, in Abbildung Z 1 dargestellten Maßnahmen (siehe Beitrag). Zusammenfassend betont der WBAE die in Deutschland weiterhin unterschätzten Risiken materieller und sozialer Ernährungsarmut. Im Rahmen der geplanten Nationalen Ernährungsstrategie der Bundesregierung sollte dem Thema Ernährungsarmut aus Sicht des WBAE eine herausgehobene Bedeutung zugemessen werden.
AU - Birner, Regina
AU - Linseisen, Jakob
AU - Arens-Azevedo, Ulrike
AU - Balmann, Alfons
AU - Biesalski, Hans Konrad
AU - Bosy-Westphal, Anja
AU - Buyken, Anette
AU - Döring, Thomas
AU - Feindt, Peter
AU - Götz, Kay-Uwe
AU - Iweala, Sarah
AU - Martínez, José
AU - Nieberg, Hiltrud
AU - Nöthlings, Ute
AU - Pischetsrieder, Monika
AU - Renner, Britta
AU - Spiller, Achim
AU - Voget-Kleschin, Lieske
AU - Weingarten, Peter
AU - Wesseler, Justus
AU - Wieck, Christine
ID - 46214
JF - Berichte über Landwirtschaft
TI - Ernährungsarmut unter Pandemiebedingungen
ER -
TY - JOUR
AU - Renner, Britta
AU - Buyken, Anette
AU - Gedrich, Kurt
AU - Lorkowski, Stefan
AU - Watzl, Bernhard
AU - Linseisen, Jakob
AU - Daniel, Hannelore
AU - Conrad, Johanna
AU - Ferrario, Paola G.
AU - Holzapfel, Christina
AU - Leitzmann, Michael
AU - Richter, Margrit
AU - Simon, Marie-Christine
AU - Sina, Christian
AU - Wirsam, Jan
ID - 46217
JF - Advances in Nutrition
KW - Nutrition and Dietetics
KW - Medicine (miscellaneous)
KW - Food Science
SN - 2161-8313
TI - Perspective: A Conceptual Framework for Adaptive Personalized Nutrition Advice Systems
ER -
TY - CONF
AU - Kaufhold, Marc-André
AU - Bayer, Markus
AU - Bäumler, Julian
AU - Reuter, Christian
AU - Stieglitz, Stefan
AU - Basyurt, Ali Sercan
AU - Mirbabaie, Milad
AU - Fuchß, Christoph
AU - Eyilmez, Kaan
ID - 46216
T2 - Mensch und Computer
TI - CYLENCE: Strategies and Tools for Cross-Media Reporting, Detection, and Treatment of Cyberbullying and Hatespeech in Law Enforcement Agencies
ER -
TY - GEN
AU - Lienen, Christian
AU - Nowosad, Alexander Philipp
AU - Platzner, Marco
ID - 46229
TI - Mapping and Optimizing Communication in ROS 2-based Applications on Configurable System-on-Chip Platforms
ER -
TY - GEN
AU - N., N.
ID - 46221
TI - Improving the End-of-Line Test of Custom-Built Geared Motors using Clustering based on Neural Networks
ER -