@misc{28855, author = {{Eickelmann, Birgit}}, publisher = {{Monitor Lehrerbildung}}, title = {{{Nachhaltiger Digitalisierungsschub im Schulbereich und in der Lehrkräftebildung durch die Pandemie? – Schön wär’s}}}, year = {{2020}}, } @article{28856, author = {{Eickelmann, Birgit}}, journal = {{BildungsImpulseRuhr}}, number = {{7}}, pages = {{8--11}}, publisher = {{Regionalverband Ruhr}}, title = {{{Strukturelle Rahmenbedingung der Digitalisierung im Schulbereich in NRW – neue Forschungsbefunde und mögliche Perspektiven für nachhaltig wirksame Entwicklungen}}}, year = {{2020}}, } @inbook{28858, author = {{Gerick, Julia and Eickelmann, Birgit}}, booktitle = {{Beiträge zur Lehrerbildung und Bildungsforschung. Digital?! Perspektiven der Digitalisierung für den Lehrerberuf und die Lehrerbildung}}, editor = {{Rothland, Martin and Herrlinger, Simone}}, pages = {{87--103}}, publisher = {{Waxmann}}, title = {{{Lehrerbildung und Digitalisierung. Ein empirischer Blick auf der Grundlage der Studie ICILS 2018}}}, volume = {{6}}, year = {{2020}}, } @inbook{28859, author = {{Eickelmann, Birgit and Drossel, Kerstin}}, booktitle = {{ Encyclopedia of Education and Information Technologies}}, editor = {{Tatnall, Arthur}}, isbn = {{9783030105754}}, pages = {{1577--1589}}, publisher = {{Springer}}, title = {{{Students’ computer literacy and the use of tablets in upper secondary schools}}}, doi = {{10.1007/978-3-030-10576-1}}, year = {{2020}}, } @inproceedings{28860, author = {{Labusch, Amelie and Eickelmann, Birgit}}, booktitle = {{Proceedings of International Conference on Computational Thinking Education 2020 }}, editor = {{Kong, Siu Cheung and Hoppe, Heinz Ulrich and Hsu, Ting-chia and Huang, Rong-Huai and Kuo, Bor-Chen and Li, Robert Kwok-Yiu and Looi, Chee-kit and Milard, Marcelo and Shih, Ju-Ling and Sin, Kuen Fung and Song, Ki-sang and Specht, Marcus and Sullivan, Florence and Vahrenhold, Jan}}, pages = {{2--7}}, publisher = {{The Education University of Hong Kong}}, title = {{{Computational thinking competences in countries from three different continents in the mirror of students' characteristics and school learning}}}, year = {{2020}}, } @article{28865, author = {{Gerick, Julia and Eickelmann, Birgit and Steglich, Emilie}}, journal = {{Fachzeitschrift für Schul- und Unterrichtsentwicklung}}, number = {{4}}, pages = {{8--10}}, title = {{{Modellschulen ‚Lernen mit digitalen Medien‘ in der Pandemie-Zeit – Gestaltungsansätze und Lessons Learnt}}}, volume = {{51}}, year = {{2020}}, } @inbook{28866, author = {{Labusch, Amelie and Vennemann, Mario and Eickelmann, Birgit}}, booktitle = {{ICILS 2018 #NRW. Vertiefende Analysen und Befunde für Nordrhein-Westfalen im internationalen Vergleich}}, editor = {{Eickelmann, Birgit and Labusch, Amelie and Drossel, Kerstin and Vennemann, Mario}}, pages = {{249--258}}, publisher = {{Waxmann}}, title = {{{Sozial- und migrationsbedingte Disparitäten im Bereich ‚Computational Thinking‘ von Schülerinnen und Schülern}}}, year = {{2020}}, } @inbook{28871, author = {{Labusch, Amelie and Eickelmann, Birgit and Vahrenhold, Jan and Vennemann, Mario}}, booktitle = {{ICILS 2018 #NRW. Vertiefende Analysen und Befunde für Nordrhein-Westfalen im internationalen Vergleich}}, editor = {{Eickelmann, Birgit and Labusch, Amelie and Drossel, Kerstin and Vennemann, Mario}}, pages = {{201--214}}, publisher = {{Waxmann}}, title = {{{Kompetenzen im Bereich ‚Computational Thinking‘ von Schülerinnen und Schülern im internationalen Vergleich}}}, year = {{2020}}, } @inbook{28873, author = {{Vennemann, Mario and Labusch, Amelie and Eickelmann, Birgit}}, booktitle = {{ICILS 2018 #NRW. Vertiefende Analysen und Befunde für Nordrhein-Westfalen im internationalen Vergleich }}, editor = {{Eickelmann, Birgit and Labusch, Amelie and Drossel, Kerstin and Vennemann, Mario}}, pages = {{179--188}}, publisher = {{Waxmann}}, title = {{{Die Nutzung digitaler Medien aus der Perspektive der Schülerinnen und Schüler}}}, year = {{2020}}, } @inbook{28875, author = {{Vahrenhold, Jan and Vennemann, Mario and Labusch, Amelie and Eickelmann, Birgit}}, booktitle = {{ICILS 2018 #NRW. Vertiefende Analysen und Befunde für Nordrhein-Westfalen im internationalen Vergleich}}, editor = {{Eickelmann, Birgit and Labusch, Amelie and Drossel, Kerstin and Vennemann, Mario}}, pages = {{137--154}}, publisher = {{Waxmann}}, title = {{{Der Informatikunterricht aus Sicht schulischer Akteurinnen und Akteure – Analysen und Perspektiven}}}, year = {{2020}}, } @inbook{28877, author = {{Eickelmann, Birgit and Heldt, Melanie and Port, Sonja}}, booktitle = {{ICILS 2018 #NRW. Vertiefende Analysen und Befunde für Nordrhein-Westfalen im internationalen Vergleich}}, editor = {{Eickelmann, Birgit and Labusch, Amelie and Drossel, Kerstin and Vennemann, Mario}}, pages = {{67--74}}, publisher = {{Waxmann}}, title = {{{ Rolle des schulischen Ganztags für das Lernen mit digitalen Medien}}}, year = {{2020}}, } @inbook{28878, author = {{Heldt, Melanie and Labusch, Amelie and Eickelmann, Birgit and Port, Sonja}}, booktitle = {{ICILS 2018 #NRW. Vertiefende Analysen und Befunde für Nordrhein-Westfalen im internationalen Vergleich}}, editor = {{Eickelmann, Birgit and Labusch, Amelie and Drossel, Kerstin and Vennemann, Mario}}, pages = {{55--66}}, publisher = {{Waxmann}}, title = {{{Konzeptionelle Verankerung digitaler Medien in schulisches Lernen und Lehren}}}, year = {{2020}}, } @article{28881, author = {{Gerick, Julia and Eickelmann, Birgit and Steglich, Emilie}}, journal = {{SchulManagement. Fachzeitschrift für Schul- und Unterrichtsentwicklung}}, number = {{4}}, pages = {{8--10}}, title = {{{Modellschulen ‚Lernen mit digitalen Medien‘ in der Pandemie-Zeit – Gestaltungsansätze und Lessons Learnt}}}, volume = {{51}}, year = {{2020}}, } @article{28886, author = {{Eickelmann, Birgit}}, journal = {{SchulManagement. Fachzeitschrift für Schul- und Unterrichtsentwicklung}}, number = {{5}}, pages = {{15--16}}, title = {{{Schulleitung und Digitalisierung. Fünf Thesen}}}, volume = {{51}}, year = {{2020}}, } @misc{28888, author = {{Gerick, Julia and Eickelmann, Birgit and Steglich, Emilie}}, publisher = {{Universität Hamburg/Universität Paderborn}}, title = {{{Ergebnisse der wissenschaftlichen Begleitung der Evaluation des Projekts ‚Lernen mit digitalen Medien‘ an den Förderzentren Geistige Entwicklung/Körperliche und motorische Entwicklung in Schleswig-Holstein ergänzt um eine Vertiefungsuntersuchung im Kontext des Lernens mit digitalen Medien unter Pandemie-Bedingungen}}}, year = {{2020}}, } @misc{28896, author = {{Gerick, Julia and Eickelmann, Birgit}}, publisher = {{Universität Braunschweig/Universität Paderborn}}, title = {{{Ergebnisse der vertiefenden Untersuchung der Modellschulen ‚Lernen mit digitalen Medien‘ (Phase III) in Schleswig-Holstein mit Fokus auf der Gestaltung von Schule in der Zeit der Corona-Pandemie}}}, year = {{2020}}, } @misc{28899, author = {{Gerick, Julia and Eickelmann, Birgit}}, publisher = {{Universität Hamburg/Universität Paderborn}}, title = {{{Ergebnisse der wissenschaftlichen Begleitung der Evaluation der dritten Phase des Projekts ‚Lernen mit digitalen Medien‘ mit dem Schwerpunkt auf digitalen Medien im Fachunterricht an Modellschulen in Schleswig-Holstein}}}, year = {{2020}}, } @article{28902, author = {{Eickelmann, Birgit}}, journal = {{Fachmagazin für Schule in der digitalen Welt}}, pages = {{6--13}}, title = {{{Re-Definition der digitalisierungsbezogenen Schulleitungsfunktionen in der Pandemie-Zeit. Plan BD #02 Leadership}}}, year = {{2020}}, } @article{28907, author = {{Gerick, Julia and Eickelmann, Birgit and Vennemann, Mario}}, journal = {{Journal für Schulentwicklung}}, number = {{4}}, pages = {{8--14}}, title = {{{Digitalisierungsbezogene Professionalisierung von Lehrpersonen. Befunde zu Aktivitäten, Gelegenheiten und schulischen Prioritäten aus ICILS 2013 und ICILS 2018 im Vergleich}}}, volume = {{24}}, year = {{2020}}, } @misc{28910, booktitle = {{Journal für Schulentwicklung}}, editor = {{Eickelmann, Birgit and Kummer Wyss, Annemarie}}, number = {{4}}, publisher = {{Studienverlag}}, title = {{{Fortbildung im digitalen Zeitalter}}}, volume = {{24}}, year = {{2020}}, } @article{29045, author = {{Engels, Gregor}}, issn = {{2366-6145}}, journal = {{Gruppe. Interaktion. Organisation. Zeitschrift für Angewandte Organisationspsychologie (GIO)}}, pages = {{363--370}}, title = {{{Der digitale Fußabdruck, Schatten oder Zwilling von Maschinen und Menschen}}}, doi = {{10.1007/s11612-020-00527-9}}, year = {{2020}}, } @article{29161, author = {{Eke, Norbert}}, journal = {{www.literaturkommission.lwl.org/media/filer_public/cb/ad/cbad76c2-23ac-4cb1-ade3-883dcbd1bbf0/broschure_roes_210x210.pdf }}, pages = {{S. 14--23}}, title = {{{Annette-von-Droste-Hülshoff-Preis 2020 Michael Roes im Gespräch mit LWL-Direktor Matthias Löb und Prof. Dr. Norbert Otto Eke, }}}, year = {{2020}}, } @misc{29166, author = {{Eke, Norbert}}, booktitle = {{Literaturwissenschaftliches Jahrbuch }}, number = {{61}}, pages = {{S. 385--390}}, publisher = {{Duncker & Humblot }}, title = {{{[zu:] Cristina Rossi: Sinn und Struktur. Zugänge zu den Collagen Herta Müllers. Würzburg: Königshausen & Neumann, 2019}}}, year = {{2020}}, } @article{27013, abstract = {{AbstractFlavonoids are suggested to reduce disease risk. Since dietary habits are acquired during early life, describing age and time trends of flavonoid intake and major food sources are important for monitoring and disease prevention in later life. We aimed to describe total flavonoid intake and food sources and to investigate age and time trends of flavonoid intake in 3–18-year-olds, from the Dortmund Nutritional and Anthropometric Longitudinally Designed study from 1985 to 2016. Intake was assessed annually using 3-d weighed food records (WFR). Flavonoid values were assigned using the United States Department of Agriculture database. Foods contributing to intake were determined. Age and time trends in total flavonoid and isoflavone density were analysed by sex with PROC MIXED. In total, 1312 children completed 10 758 WFR. Across all ages, daily mean total flavonoid density was lower in boys compared with girls (134 v. 146 mg/4184 kJ) and no difference in median isoflavone density (0·04 mg/4184 kJ per d) was found. The top five foods contributing to total flavonoid intake were apple with peel (15·0/17·1 %), strawberries (5·9/6·1 %), chocolate spread (3·9/3·5 %), orange juice (3·5/3·4 %) and pasta (3·5/3·4 %) for boys and girls, respectively. Overall, in boys, total flavonoid density decreased over the course of age and time. In girls, there was no association with age or time. In both sexes, isoflavone density followed a U-shaped age trend with no change over time. From a public health perspective, the overall observed downwards trend of flavonoid intake in boys deserves attention. Future initiatives should be tailored at maintaining a high flavonoid density as children age, specifically among boys.}}, author = {{Rienks, Johanna and Penczynski, Katharina J. and Schmitting, Sarah and Buyken, Anette and Nöthlings, Ute}}, issn = {{0007-1145}}, journal = {{British Journal of Nutrition}}, pages = {{1198--1206}}, title = {{{Dietary flavonoids among children and adolescents in the Dortmund Nutritional and Anthropometric Longitudinally Designed (DONALD) study: intake, food sources and trends from 1985 until 2016}}}, doi = {{10.1017/s000711452000183x}}, year = {{2020}}, } @article{27019, abstract = {{AbstractTo examine the hypothesis that normalization of low circulating leptin levels in patients with anorexia nervosa ameliorates hyperactivity, three seriously ill females with hyperactivity were treated off-label with metreleptin (recombinant human leptin) for up to 14 days. Drive for activity, repetitive thoughts of food, inner restlessness, and weight phobia decreased in two patients. Surprisingly, depression improved rapidly in all patients. No serious adverse events occurred. Due to obvious limitations of uncontrolled case series, placebo-controlled clinical trials are mandatory to confirm the observed rapid onset of beneficial effects. Our findings suggest an important role of hypoleptinemia in the mental and behavioral phenotype of anorexia nervosa.}}, author = {{Milos, Gabriella and Antel, Jochen and Kaufmann, Lisa-Katrin and Barth, Nikolaus and Koller, Antonia and Tan, Susanne and Wiesing, Urban and Hinney, Anke and Libuda, Lars and Wabitsch, Martin and von Känel, Roland and Hebebrand, Johannes}}, issn = {{2158-3188}}, journal = {{Translational Psychiatry}}, title = {{{Short-term metreleptin treatment of patients with anorexia nervosa: rapid on-set of beneficial cognitive, emotional, and behavioral effects}}}, doi = {{10.1038/s41398-020-00977-1}}, year = {{2020}}, } @article{27020, author = {{Peters, Triinu and Nüllig, Lena and Antel, Jochen and Naaresh, Roaa and Laabs, Björn-Hergen and Tegeler, Lisa and Amhaouach, Chaima and Libuda, Lars and Hinney, Anke and Hebebrand, Johannes}}, issn = {{1664-8021}}, journal = {{Frontiers in Genetics}}, title = {{{The Role of Genetic Variation of BMI, Body Composition, and Fat Distribution for Mental Traits and Disorders: A Look-Up and Mendelian Randomization Study}}}, doi = {{10.3389/fgene.2020.00373}}, year = {{2020}}, } @inproceedings{27051, author = {{Augustine, John and Hinnenthal, Kristian and Kuhn, Fabian and Scheideler, Christian and Schneider, Philipp}}, booktitle = {{Proceedings of the 2020 ACM-SIAM Symposium on Discrete Algorithms, SODA 2020, Salt Lake City, UT, USA, January 5-8, 2020}}, editor = {{Chawla, Shuchi}}, pages = {{1280--1299}}, publisher = {{SIAM}}, title = {{{Shortest Paths in a Hybrid Network Model}}}, doi = {{10.1137/1.9781611975994.78}}, year = {{2020}}, } @article{27091, abstract = {{Die Verfügbarkeit von Daten aus dem Betrieb hat durch die Einführung von vernetzten intelligenten Fertigungssystemen (cyber-physische Systeme) stark zugenommen. Hieraus eröffnen sich Erfolg versprechende Möglichkeiten für Smart Services und damit verbundene neue Geschäftsfelder. Voraussetzung für den Eintritt in ein neues Geschäft mit Smart Services ist eine fundierte Geschäftsstrategie. Wir zeigen die zentralen Gestaltungsfelder von Smart Service-Strategien auf und erläutern, wie sechs von uns ermittelte Normstrategien bei der Formulierung einer attraktiven Strategie helfen können.}}, author = {{Koldewey, Christian and Frank, Maximilian and Gausemeier, Jürgen and Bäsecke, Alexander and Chohan, Nadia and Reinhold, Jannik}}, journal = {{ZWF, Zeitschrift für wirtschaftliche Fabrikplanung 115(7-8)}}, pages = {{524--528}}, title = {{{Systematische Entwicklung von Normstrategien für Smart Services}}}, year = {{2020}}, } @inproceedings{27092, author = {{Gausemeier, Jürgen and Eckelt, Daniel and Dülme, Christian}}, booktitle = {{Handbuch Gestaltung digitaler und vernetzter Arbeitswelten}}, editor = {{Maier, Günter and Engels, Gregor and Steffen, Eckhard}}, pages = {{35--57}}, publisher = {{Springer-Verlag}}, title = {{{Strategische Planung}}}, year = {{2020}}, } @article{27096, author = {{Koldewey, Christian and Meyer, Maurice and Stockbruegger, Patrick and Dumitrescu, Roman and Gausemeier, Jürgen}}, journal = {{Procedia CIRP (91)}}, pages = {{851--857}}, title = {{{Framework and Functionality Patterns for Smart Service Innovation}}}, year = {{2020}}, } @inproceedings{27097, author = {{Pierenkemper, Christoph and Gausemeier, Jürgen}}, booktitle = {{Proceeding of the ISPIM Connects, 1. - 4. Mrz. 2020}}, publisher = {{International Society for Professional Innovation Management (ISPIM)}}, title = {{{Developing Strategies for Digital Transformation in SMEs with Maturity Models}}}, year = {{2020}}, } @article{27098, author = {{Drewel, Marvin and Özcan, Leon and Koldewey, Christian and Gausemeier, Jürgen}}, journal = {{Creativity and Innovation Management}}, title = {{{Pattern‐based development of digital platforms}}}, year = {{2020}}, } @article{27130, author = {{Poddubnyi, Vladimir I. and Trächtler, Ansgar and Warkentin, Andreas and Henke, Christian}}, journal = {{Vestnik Mashinostroeniya}}, pages = {{26--29}}, title = {{{Mechanical and mathematical model of a caterpillar drive with a triangular contour for solving problems of vertical dynamics of a tracked vehicle}}}, doi = {{10.36652/0042-4633-2020-12-26-29}}, year = {{2020}}, } @inproceedings{27477, author = {{Rettinghaus, Klaus and Röwenstrunk, Daniel and Kepper, Johannes}}, location = {{Tufts University, Medford, MA, USA}}, title = {{{Integrating Score Rendition in the MEI Garage}}}, year = {{2020}}, } @phdthesis{27642, author = {{Hüttner , Matthias }}, title = {{{Einfluss umgebungsbedingter Alterung auf das Werkstoffverhalten unverstärkter, kurzfaserverstärkter und gewebeverstärkter Thermoplaste }}}, year = {{2020}}, } @phdthesis{27643, author = {{Heiderich, Gilmar}}, title = {{{Modellbasierte Beschreibung und Validierung der Glasfaserverkürzung im Spritzgießplastifizieraggregat mittels analytischer und und diskreter Ansätze }}}, year = {{2020}}, } @phdthesis{27644, author = {{Bayazian, Hoda}}, title = {{{Evaluation of LLDPE and PLA Films Manufactured with High Speed}}}, year = {{2020}}, } @phdthesis{27645, author = {{Sporkmann, Frederik }}, title = {{{Modellierung der Materialströmung auf gleichläufigen Doppelschneckenextrudern mit Hilfe der Performance Mapping Methode}}}, year = {{2020}}, } @phdthesis{27646, author = {{Resonnek, Verena}}, title = {{{Entwicklung einer Zylindertemperatureinstellungsregelung auf Basis von Fuzzy-Logik }}}, year = {{2020}}, } @inbook{27721, author = {{Homt, Martina and Bloh, Bea and Grosser, Christine}}, booktitle = {{Forschendes Lernen in der Lehrer/innenbildung. Implikationen für Wissenschaft und Praxis}}, editor = {{Basten, M. and Mertens, C. and Schöning, A. and Wolf, E.}}, pages = {{165--176}}, title = {{{Die Einstellung angehender Lehrkräfte zu Forschendem Lernen im Praxissemester und Referendariat}}}, year = {{2020}}, } @article{27795, author = {{Kupriyanova, Yuliya and Zaharia, Oana Patricia and Bobrov, Pavel and Karusheva, Yanislava and Burkart, Volker and Szendroedi, Julia and Hwang, Jong-Hee and Roden, Michael and Roden, M. and Al-Hasani, H. and Burkart, V. and Buyken, Anette and Geerling, G. and Hwang, J.H. and Herder, C. and Icks, A. and Jandeleit-Dahm, K. and Kahl, S. and Kotzka, J. and Kuss, O. and Lammert, E. and Trenkamp, S. and Rathmann, W. and Szendroedi, J. and Ziegler, D.}}, issn = {{0168-8278}}, journal = {{Journal of Hepatology}}, pages = {{1028--1037}}, title = {{{Early changes in hepatic energy metabolism and lipid content in recent-onset type 1 and 2 diabetes mellitus}}}, doi = {{10.1016/j.jhep.2020.11.030}}, year = {{2020}}, } @article{27797, abstract = {{Abstract Objective To provide a systematic overview of world dietary sugar and sugar-sweetened beverage (SSB) intake trends in children and adolescents. Data Sources Medline, Embase, and the Cochrane Central Register of Controlled Trials in the Cochrane Library were searched through January 2019 to identify longitudinal follow-up studies with time-trend data and repeated cross-sectional studies. Data Extraction Data from studies reporting ≥ 2 measurements (sugars, SSB, or sweets/candy) over ≥ 2 years and included ≥ 20 healthy, normal- or overweight children or adolescents aged 1–19 years. Data Analysis Data from 43 articles (n = 4 prospective cohort studies; n = 39 repeated cross-sectional studies) from 15 countries (n = 8 European countries plus Australia, Canada, China, South Korea, Mexico, Russia, and the United States) are presented narratively. According to the risk of bias in nonrandomized studies of interventions tool, 34 studies were judged to have a moderate risk of bias, and 5 to have a serious risk of bias. Conclusions Consumption among US children and adolescents increased substantially in the decades preceding 2000, followed by a faster and continued decline. As a whole, other international intake trends did not reveal drastic increases and decreases in SSB and dietary sugars; they tended to change only slightly across 3 decades. }}, author = {{Della Corte, Karen and Fife, Jessica and Gardner, Alexis and Murphy, Britta L and Kleis, Linda and Della Corte, Dennis and Schwingshackl, Lukas and LeCheminant, James D and Buyken, Anette}}, issn = {{0029-6643}}, journal = {{Nutrition Reviews}}, pages = {{274--288}}, title = {{{World trends in sugar-sweetened beverage and dietary sugar intakes in children and adolescents: a systematic review}}}, doi = {{10.1093/nutrit/nuaa070}}, year = {{2020}}, } @article{27799, abstract = {{Dietary fibre is a generic term describing non-absorbed plant carbohydrates and small amounts of associated non-carbohydrate components. The main contributors of fibre to the diet are the cell walls of plant tissues, which are supramolecular polymer networks containing variable proportions of cellulose, hemicelluloses, pectic substances, and non-carbohydrate components, such as lignin. Other contributors of fibre are the intracellular storage oligosaccharides, such as fructans. A distinction needs to be made between intrinsic sources of dietary fibre and purified forms of fibre, given that the three-dimensional matrix of the plant cell wall confers benefits beyond fibre isolates. Movement through the digestive tract modifies the cell wall structure and may affect the interactions with the colonic microbes (e.g., small intestinally non-absorbed carbohydrates are broken down by bacteria to short-chain fatty acids, absorbed by colonocytes). These aspects, combined with the fibre associated components (e.g., micronutrients, polyphenols, phytosterols, and phytoestrogens), may contribute to the health outcomes seen with the consumption of dietary fibre. Therefore, where possible, processing should minimise the degradation of the plant cell wall structures to preserve some of its benefits. Food labelling should include dietary fibre values and distinguish between intrinsic and added fibre. Labelling may also help achieve the recommended intake of 14 g/1000 kcal/day.}}, author = {{Augustin, Livia S. A. and Aas, Anne-Marie and Astrup, Arnie and Atkinson, Fiona S. and Baer-Sinnott, Sara and Barclay, Alan W. and Brand-Miller, Jennie C. and Brighenti, Furio and Bullo, Monica and Buyken, Anette and Ceriello, Antonio and Ellis, Peter R. and Ha, Marie-Ann and Henry, Jeyakumar C. and Kendall, Cyril W. C. and La Vecchia, Carlo and Liu, Simin and Livesey, Geoffrey and Poli, Andrea and Salas-Salvadó, Jordi and Riccardi, Gabriele and Riserus, Ulf and Rizkalla, Salwa W. and Sievenpiper, John L. and Trichopoulou, Antonia and Usic, Kathy and Wolever, Thomas M. S. and Willett, Walter C. and Jenkins, David J. A.}}, issn = {{2072-6643}}, journal = {{Nutrients}}, title = {{{Dietary Fibre Consensus from the International Carbohydrate Quality Consortium (ICQC)}}}, doi = {{10.3390/nu12092553}}, year = {{2020}}, } @article{27800, abstract = {{ A lower 24-h urine pH (24h-pH), i.e., a higher renal excretion of free protons, at a given acid load to the body, denotes a reduction in the kidney’s capacity for net acid excretion (NAE). There is increasing evidence, not only for patients with type 2 diabetes but also for healthy individuals, that higher body fatness or waist circumference (WC) has a negative impact on renal function to excrete acids (NAE). We hypothesized that adiposity-related inflammation molecules might mediate this relation between adiposity and renal acid excretion function. Twelve biomarkers of inflammation were measured in fasting blood samples from 162 adult participants (18–25 yr old) of the Dortmund Nutritional and Anthropometric Longitudinally Designed (DONALD) study who had undergone anthropometric measurements and collected 24-h urine samples. Both Baron and Kenny’s (B&K’s) steps to test mediation and causal mediation analysis were conducted to examine the potential mediatory roles of biomarkers of inflammation in the WC-24-h pH relationship after strictly controlling for laboratory-measured NAE. In B&K’s mediation analysis, leptin, soluble intercellular adhesion molecule 1 (sICAM-1), and adiponectin significantly associated with the outcome 24-h pH and attenuated the WC-pH relation. In agreement herewith, causal mediation analysis estimated the “natural indirect effects” of WC on 24-h pH via leptin ( P = 0.01) and adiponectin ( P = 0.03) to be significant, with a trend for sICAM-1 ( P = 0.09). The calculated proportions mediated by leptin, adiponectin, and sICAM-1 were 64%, 23%, and 12%, respectively. Both mediation analyses identified an inflammatory cytokine (leptin) and an anti-inflammatory cytokine (adiponectin) along with sICAM-1 as being potentially involved in mediating adiposity-related influences on renal acid excretion capacity. }}, author = {{Hua, Yifan and Herder, Christian and Kalhoff, Hermann and Buyken, Anette and Esche, Jonas and Krupp, Danika and Wudy, Stefan A. and Remer, Thomas}}, issn = {{1931-857X}}, journal = {{American Journal of Physiology-Renal Physiology}}, pages = {{F469--F475}}, title = {{{Inflammatory mediators in the adipo-renal axis: leptin, adiponectin, and soluble ICAM-1}}}, doi = {{10.1152/ajprenal.00257.2020}}, year = {{2020}}, } @article{27801, author = {{Nyasordzi, Juliana and Penczynski, Katharina and Remer, Thomas and Buyken, Anette}}, issn = {{1932-6203}}, journal = {{PLOS ONE}}, title = {{{Early life factors and their relevance to intima-media thickness of the common carotid artery in early adulthood}}}, doi = {{10.1371/journal.pone.0233227}}, year = {{2020}}, } @article{27803, author = {{Schwingshackl, Lukas and Neuenschwander, Manuela and Hoffmann, Georg and Buyken, Anette and Schlesinger, Sabrina}}, issn = {{0002-9165}}, journal = {{The American Journal of Clinical Nutrition}}, pages = {{917--918}}, title = {{{Reply to Khan et al.}}}, doi = {{10.1093/ajcn/nqaa006}}, year = {{2020}}, } @article{27806, abstract = {{AbstractTrend analyses based on dietary records suggest decreases in the intakes of total sugar (TS), added and free sugar since 2005 among children and adolescents in Germany. In terms of age trends, TS intake decreased with increasing age. However, self-reported sugar intake in epidemiological studies is criticised, as it may be prone to bias due to selective underreporting. Furthermore, adolescents are more susceptible to underreporting than children. We thus analysed time and age trends in urinary fructose excretion (FE), sucrose excretion (SE) and the sum of both (FE + SE) as biomarkers for sugar intake among 8·5–16·5-year-old adolescents. Urinary sugar excretion was measured by UPLC-MS/MS in 997 24-h urine samples collected from 239 boys and 253 girls participating in the Dortmund Nutritional and Anthropometric Longitudinally Designed (DONALD) study cohort between 1990 and 2016. Time and age trends of log-transformed FE, SE and FE + SE were analysed using polynomial mixed-effects regression models. Between 1990 and 2016, FE as well as FE + SE decreased (linear time trend: P = 0·0272 and P < 0·0001, respectively). A minor increase in excretion during adolescence was confined to FE (linear age trend: P = 0·0017). The present 24-h excretion measurements support a previously reported dietary record-based decline in sugar intake since 2005. However, the previously seen dietary record-based decrease in TS from childhood to late adolescence was not confirmed by our biomarker analysis, suggesting a constant sugar intake for the period of adolescence.}}, author = {{Perrar, Ines and Gray, Nicola and Kuhnle, Gunter G. and Remer, Thomas and Buyken, Anette and Alexy, Ute}}, issn = {{0007-1145}}, journal = {{British Journal of Nutrition}}, pages = {{164--172}}, title = {{{Sugar intake among German adolescents: trends from 1990 to 2016 based on biomarker excretion in 24-h urine samples}}}, doi = {{10.1017/s0007114520000665}}, year = {{2020}}, } @article{27807, abstract = {{There is no question that elevated postprandial glycemia is a significant driver of common chronic diseases globally [...]}}, author = {{Brand-Miller, Jennie and Buyken, Anette}}, issn = {{2072-6643}}, journal = {{Nutrients}}, title = {{{The Relationship between Glycemic Index and Health}}}, doi = {{10.3390/nu12020536}}, year = {{2020}}, } @article{27826, author = {{Drossel, Kerstin and Kampmeyer, Meike}}, journal = {{Friedrich Jahresheft #schuleDIGITAL}}, pages = {{58--59}}, title = {{{Lehrerkooperation im Zeitalter der Digitalisierung – Potenziale, Herausforderungen und Gelingensbedingungen}}}, volume = {{38}}, year = {{2020}}, } @article{27827, author = {{Drossel, Kerstin and Heldt, Melanie}}, journal = {{Schulmanagement}}, number = {{2}}, pages = {{36--39}}, title = {{{Die Rolle der Schulleitung in Kooperationsprozessen im Zeitalter der Digitalisierung}}}, year = {{2020}}, } @inbook{27828, author = {{Eickelmann, Birgit and Drossel, Kerstin}}, booktitle = {{Bewegungen - Beiträge zum 26. Kongress der Deutschen Gesellschaft für Erziehungswissenschaft}}, editor = {{van Ackeren, Isabell and Bremer, Helmut and Kessl, Fabian and Koller, Hans Christoph and Pfaff, Nicolle and Rotter, Caroline and Klein, Dominique and Salaschek, Ulrich}}, pages = {{57--82}}, publisher = {{Barbara Budrich}}, title = {{{Lehrer*innenbildung und Digitalisierung - Konzepte und Entwicklungsperspektiven}}}, year = {{2020}}, } @inbook{27829, author = {{Drossel, Kerstin and Heldt, Melanie and Eickelmann, Birgit}}, booktitle = {{Bildung, Schule und Digitalisierung}}, editor = {{Kaspar, Kai and Becker-Mrotzek, Michael and Hofhues, Sandra and König, Johannes and Schmeinck, Daniela}}, pages = {{45--50}}, publisher = {{Waxmann}}, title = {{{Die Implementation digitaler Medien in den Unterricht gemeinsam gestalten: Lehrer*innenbildung durch medienbezogene Kooperation}}}, year = {{2020}}, } @book{27832, author = {{Eickelmann, Birgit and Drossel, Kerstin and Heldt, Melanie}}, publisher = {{Vodafone Stiftung}}, title = {{{Schule auf Distanz. Perspektiven und Empfehlungen für den Schulalltag. Eine repräsentative Befragung von Lehrkräften in Deutschland}}}, year = {{2020}}, } @article{27833, author = {{Eickelmann, Birgit and Drossel, Kerstin and Heldt, Melanie}}, journal = {{Schulmanagement. Fachzeitschrift für Schul- und Unterrichtsentwicklung}}, number = {{3}}, pages = {{28--31}}, title = {{{Vorteile digital fortgeschrittener Schulen in der Pandemie-Zeit. Ergebnisse einer repräsentativen Lehrkräftebefragung}}}, volume = {{51}}, year = {{2020}}, } @article{27834, author = {{Drossel, Kerstin and Heldt, Melanie}}, journal = {{Schulmagazin 5-10}}, pages = {{11--14}}, title = {{{Medienbezogene Lehrerkooperation. Kooperationsformen und thematische Schwerpunkte}}}, year = {{2020}}, } @inbook{27835, author = {{Drossel, Kerstin and Eickelmann, Birgit}}, booktitle = {{(Neue) Formen der Differenzierung. Schul- und Klassenprofilierung im Spannungsfeld gesellschaftlicher Teilhabe und sozialer Ungleichheit}}, editor = {{Keßler, Catharina I. and Nolte, Sonja}}, pages = {{181--197}}, publisher = {{Waxmann}}, title = {{{Digitalisierung als Schulprofil am Gymnasium - eine längsschnittliche Untersuchung zur Entwicklung der computerbezogenen Kompetenzen}}}, year = {{2020}}, } @article{27837, abstract = {{Abstract Background The ongoing digitalization poses new challenges for schools concerning students’ digital skills. In this context, the International Computer and Information Literacy Study (IEA-ICILS 2018) has identified substantial social disparities concerning computer and information literacy of grade 8 students. Furthermore, it has been observed that many schools, especially those located in socioeconomically challenged areas, are particularly engaged in supporting students’ digital literacy and innovatively designing learning processes with information and communications technology (ICT). Empirical studies have made it apparent that some schools have high average achievements concerning domains such as reading literacy and mathematics in spite of socioeconomically challenged student bodies. These schools are regarded as being organizationally resilient. This contribution focusses on these organizationally resilient schools with regard to the domain of computer and information literacy. It aims to investigate how these schools can be classified as a typology according to selected school and/or teacher characteristics. Methods As a first step, representative samples of IEA-ICILS 2018 are used to identify organizationally resilient schools by using students’ achievement measures (plausible values) and their background information regarding their families’ socio-economic status. In order to develop a typology, latent profile analyses (LPA) are conducted by using input and process indicators on the school level, which have been proven to be relevant for implementation through existing empirical research. Results About one twentieth of the schools examined in this contribution can be regarded as organizationally resilient and can be allocated onto a typology of three school types that are characterized by different school-level factors. Conclusions The international comparison permits the conclusion that the phenomenon of organizational resilience is also existent with regard to the content domain of computer and information literacy. However, the proportion of resilient schools is subject to considerable variation between countries. }}, author = {{Drossel, Kerstin and Eickelmann, Birgit and Vennemann, Mario}}, issn = {{2196-0739}}, journal = {{Large-scale Assessments in Education}}, pages = {{1--19}}, title = {{{Schools overcoming the digital divide: in depth analyses towards organizational resilience in the computer and information literacy domain}}}, doi = {{10.1186/s40536-020-00087-w}}, volume = {{8}}, year = {{2020}}, } @inbook{27840, author = {{Vennemann, Mario and Drossel, Kerstin and Eickelmann, Birgit}}, booktitle = {{ICILS 2018 #NRW. Vertiefende Analysen und Befunde für Nordrhein-Westfalen im internationalen Vergleich}}, editor = {{Eickelmann, Birgit and Labusch, Amelie and Drossel, Kerstin and Vennemann, Mario}}, pages = {{235--248}}, publisher = {{Waxmann}}, title = {{{Sozial- und migrationsbedingte Disparitäten in den computer- und informationsbezogenen Kompetenzen von Schülerinnen und Schülern}}}, year = {{2020}}, } @inbook{27850, author = {{Eickelmann, Birgit and Drossel, Kerstin and Gerick, Julia}}, booktitle = {{ICILS 2018 #NRW. Vertiefende Analysen und Befunde für Nordrhein-Westfalen im internationalen Vergleich}}, editor = {{Eickelmann, Birgit and Labusch, Amelie and Drossel, Kerstin and Vennemann, Mario}}, pages = {{123--136}}, publisher = {{Waxmann}}, title = {{{Die Perspektive der Schulleitung auf Prioritäten zum Lernen und Lehren mit digitalen Medien}}}, year = {{2020}}, } @inbook{27851, author = {{Eickelmann, Birgit and Drossel, Kerstin and Niemann, Jan}}, booktitle = {{ICILS 2018 #NRW. Vertiefende Analysen und Befunde für Nordrhein-Westfalen im internationalen Vergleich}}, editor = {{Eickelmann, Birgit and Labusch, Amelie and Drossel, Kerstin and Vennemann, Mario}}, pages = {{111--122}}, publisher = {{Waxmann}}, title = {{{Lehrerfortbildung zum Lernen und Lehren mit digitalen Medien}}}, year = {{2020}}, } @article{27859, author = {{Heldt, Melanie and Drossel, Kerstin and Eickelmann, Birgit}}, journal = {{Schulmanagement-Handbuch}}, number = {{3}}, pages = {{19--37}}, title = {{{Lieber gemeinsam als alleine!? Ein Überblick über die Situation unterrichtsbezogener Lehrerkooperationen im Zeitalter der Digitalisierung in Deutschland}}}, volume = {{175}}, year = {{2020}}, } @inbook{27860, author = {{Tondeur, Jo and Petko, Dominik and Barma, Sylvie and Christensen, Rhonda and Drossel, Kerstin and Eichhorn, Koos and Knezek, Gerald and Mukama, Evode and Schmidt-Crawford, Denise and Starkey, Louise and Thabano Nleya, Paul}}, booktitle = {{Report of EDUsummIT 2019. Learners and learning contexts: new alignments for the digital age}}, editor = {{Fisser, Petra and Phillips, Michael}}, pages = {{70--75}}, publisher = {{EDUsummIT}}, title = {{{Advancing Conceptual Models of Technology Integration in Education: Implications for Researchers, Practitioners and Policymakers}}}, year = {{2020}}, } @inbook{27863, author = {{Drossel, Kerstin and Heldt, Melanie and Eickelmann, Birgit}}, booktitle = {{Bildung, Schule und Digitalisierung}}, editor = {{Kaspar, Kai and Becker-Mrozek, Michael and Hofhues, Sandra and König, Johannes and Schmeinck, Daniela}}, pages = {{45--50}}, publisher = {{Waxmann}}, title = {{{Lehrer*innenbildung durch medienbezogene Kooperation}}}, year = {{2020}}, } @article{27864, abstract = {{Abstract Background Due to the increasing use of information and communication technology, computer-related skills are important for all students in order to participate in the digital age (Fraillon, J., Ainley, J., Schulz, W., Friedman, T. & Duckworth, D. (2019). Preparing for life in a digital world: IEA International Computer and Information Literacy Study 2018 International Report. Amsterdam: International Association for the Evaluation of Educational Achievement (IEA). Retrieved from https://www.iea.nl/sites/default/files/2019-11/ICILS%202019%20Digital%20final%2004112019.pdf). Educational systems play a key role in the mediation of these skills (Eickelmann. Second Handbook of Information Technology in Primary and Secondary Education. Cham: Springer, 2018). However, previous studies have shown differences in students’ computer and information literacy (CIL). Although various approaches have been used to explain these differences, process data, such as response times, have never been taken into consideration. Based on data from the IEA-study ICILS 2013 of the Czech Republic, Denmark and Germany, this secondary analysis examines to what extent response times can be used as an explanatory approach for differences in CIL also within different groups of students according to student background characteristics (gender, socioeconomic background and immigrant background). Methods First, two processing profiles using a latent profile analysis (Oberski, D. (2016). Mixture Models: Latent Profile and Latent Class Analysis. In J. Robertson & M. Kaptein (Eds.), Modern Statistical Methods for HCI (pp. 275–287). Switzerland: Springer. 10.1007/978-3-319-26633-6) based on response times are determined—a fast and a slow processing profile. To detect how these profiles are related to students’ CIL, also in conjunction with students’ background characteristics (socioeconomic and immigrant background), descriptive statistics are used. Results The results show that in the Czech Republic and Germany, students belonging to the fast processing profile have on average significantly higher CIL than students allocated to the slow processing profile. In Denmark, there are no significant differences. Concerning the student background characteristics in the Czech Republic, there are significant negative time-on-task effects for all groups except for students with an immigrant background and students with a high parental occupational status. There are no significant differences in Denmark. For Germany, a significant negative time-on-task effect can be found among girls. However, the other examined indicators for Germany are ambiguous. Conclusions The results show that process data can be used to explain differences in students’ CIL: In the Czech Republic and Germany, there is a correlation between response times and CIL (significant negative time-on-task effect). Further analysis should also consider other aspects of CIL (e.g. reading literacy). What becomes clear, however, is that when interpreting and explaining differences in competence, data should also be included that relates to the completion process during testing. }}, author = {{Heldt, Melanie and Massek, Corinna and Drossel, Kerstin and Eickelmann, Birgit}}, issn = {{2196-0739}}, journal = {{Large-scale Assessments in Education}}, pages = {{1--20}}, title = {{{The relationship between differences in students’ computer and information literacy and response times: an analysis of IEA-ICILS data}}}, doi = {{10.1186/s40536-020-00090-1}}, volume = {{8}}, year = {{2020}}, } @article{27865, author = {{Eickelmann, Birgit and Drossel, Kerstin}}, journal = {{SchulVerwaltung Baden-Württemberg}}, number = {{12}}, pages = {{328--331}}, title = {{{Schulschließungen und Perspektiven für die Pandemie-Zeit}}}, volume = {{29}}, year = {{2020}}, } @inbook{27866, author = {{Drossel, Kerstin and Eickelmann, Birgit}}, booktitle = {{Mobile Medien im Schulkontext (Reihe Medienbildung und Gesellschaft)}}, editor = {{Meister, Dorothee M. and Midt, Ilka}}, pages = {{135--153}}, publisher = {{Springer}}, title = {{{Der Einsatz von Tablets am Gymnasium und der Zusammenhang mit der Entwicklung computerbezogener Kompetenzen von Schüler*innen}}}, year = {{2020}}, } @inbook{27867, author = {{Eickelmann, Birgit and Drossel, Kerstin}}, booktitle = {{Encyclopedia of Education and Information Technologies}}, editor = {{Tatnall, Arthur}}, isbn = {{9783030105754}}, pages = {{1577--1589}}, publisher = {{Springer}}, title = {{{Students’ computer literacy and the use of tablets in upper secondary schools}}}, doi = {{10.1007/978-3-030-10576-1}}, year = {{2020}}, } @book{27869, author = {{Eickelmann, Birgit and Drossel, Kerstin}}, publisher = {{Vodafone Stiftung}}, title = {{{Digitales Potenzial. Erfolgreiche Förderung digitaler Kompetenzen von Schülerinnen und Schülern an nicht-gymnasialen Schulen der Sekundarstufe I}}}, year = {{2020}}, } @misc{27873, author = {{Teidla-Kunitsõn, Gertha}}, publisher = {{LibreCat University}}, title = {{{ICT usage across Europe: A literature review and an overview of existing data}}}, doi = {{10.6084/M9.FIGSHARE.12906737}}, year = {{2020}}, } @article{21016, author = {{Dalvandi, Sadegh and Doherty, Simon and Dongol, Brijesh and Wehrheim, Heike}}, journal = {{Dagstuhl Artifacts Ser.}}, number = {{2}}, pages = {{15:1--15:2}}, title = {{{Owicki-Gries Reasoning for C11 RAR (Artifact)}}}, doi = {{10.4230/DARTS.6.2.15}}, volume = {{6}}, year = {{2020}}, } @inproceedings{21017, author = {{Dalvandi, Sadegh and Doherty, Simon and Dongol, Brijesh and Wehrheim, Heike}}, booktitle = {{34th European Conference on Object-Oriented Programming, {ECOOP} 2020, November 15-17, 2020, Berlin, Germany (Virtual Conference)}}, editor = {{Hirschfeld, Robert and Pape, Tobias}}, pages = {{11:1--11:26}}, publisher = {{Schloss Dagstuhl - Leibniz-Zentrum f{\"{u}}r Informatik}}, title = {{{Owicki-Gries Reasoning for C11 RAR}}}, doi = {{10.4230/LIPIcs.ECOOP.2020.11}}, volume = {{166}}, year = {{2020}}, } @inproceedings{21018, author = {{Richter, Cedric and Wehrheim, Heike}}, booktitle = {{35th {IEEE/ACM} International Conference on Automated Software Engineering, {ASE} 2020, Melbourne, Australia, September 21-25, 2020}}, pages = {{1016--1028}}, publisher = {{{IEEE}}}, title = {{{Attend and Represent: A Novel View on Algorithm Selection for Software Verification}}}, year = {{2020}}, } @proceedings{21019, editor = {{Ahrendt, Wolfgang and Wehrheim, Heike}}, isbn = {{978-3-030-50994-1}}, publisher = {{Springer}}, title = {{{Tests and Proofs - 14th International Conference, TAP@STAF 2020, Bergen, Norway, June 22-23, 2020, Proceedings [postponed]}}}, doi = {{10.1007/978-3-030-50995-8}}, volume = {{12165}}, year = {{2020}}, } @article{21022, author = {{Allgaier, M. and Ansari, V. and Donohue, J. M. and Eigner, Christof and Quiring, V. and Ricken, R. and Brecht, Benjamin and Silberhorn, Christine}}, issn = {{2469-9926}}, journal = {{Physical Review A}}, title = {{{Pulse shaping using dispersion-engineered difference frequency generation}}}, doi = {{10.1103/physreva.101.043819}}, volume = {{101}}, year = {{2020}}, } @article{21024, author = {{Ansari, Vahid and Donohue, John M. and Brecht, Benjamin and Silberhorn, Christine}}, issn = {{1094-4087}}, journal = {{Optics Express}}, number = {{19}}, title = {{{Remotely projecting states of photonic temporal modes}}}, doi = {{10.1364/oe.395593}}, volume = {{28}}, year = {{2020}}, } @inbook{21078, author = {{Menke, Peter}}, booktitle = {{Kommunikationsdynamiken zwischen Mündlichkeit und Schriftlichkeit. Festschrift für Barbara Job zum 60. Geburtstag}}, editor = {{Kluge, Bettina and Mihatsch, Wiltrud and Schaller, Birte}}, pages = {{225–244}}, publisher = {{Narr Francke Attempto}}, title = {{{»ich wusste doch irgendwas war zu einfach«. Gesprächsanalytische Betrachtungen von Proberunden zum Lernen von Gesellschaftsspielen}}}, year = {{2020}}, } @misc{21117, author = {{Manegold, Philipp}}, title = {{{On Batch Proofs of Partial Knowledge}}}, year = {{2020}}, } @misc{21118, author = {{Anonymous, Anonymous}}, title = {{{Measuring the Performance of SNARK Libraries}}}, year = {{2020}}, } @misc{21119, author = {{Westerwelle, Max}}, title = {{{Trapdoors and Sampling Procedures for Lattice-Based Cryptographic Constructions}}}, year = {{2020}}, } @misc{21121, author = {{Anonymous, Anonymous}}, title = {{{Benchmarking the Efficiency of Secure Multiparty Computation for Real World Problems}}}, year = {{2020}}, } @article{21126, author = {{Pekkarinen, Satu and Hennala, Lea and Tuisku, Outi and Gustafsson, Christine and Johansson-Pajala, Rose-Marie and Thommes, Kirsten and Hoppe, Julia Amelie and Melkas, Helinä}}, issn = {{1569-1101}}, journal = {{Gerontechnology}}, title = {{{Care robots in society: Knowledge and orientation needs}}}, doi = {{10.4017/gt.2020.19.s.69664}}, year = {{2020}}, } @article{21127, author = {{Johansson-Pajala, Rose-Marie and Thommes, Kirsten and Hoppe, Julia Amelie and Tuisku, Outi and Hennala, Lea and Pekkarinen, Satu and Melkas, Helinä and Gustafsson, Christine}}, issn = {{1569-1101}}, journal = {{Gerontechnology}}, title = {{{The need for care robot orientation in elder care services}}}, doi = {{10.4017/gt.2020.19.s.69574}}, year = {{2020}}, } @techreport{21152, abstract = {{In modern lightweight designs, it is important to find a compromise between the strength and the weight of the construction detail. Hence, hybrid structures made of aluminum and steel materials are increasingly being used in automotive applications. Due to limitations in the quality of resistance spot welding, self-piercing riveting can be used as an alternative process to join sheets from different material groups. The aim of this project is to develop a computational method to assess the self-piercing riveted components subjected to the cyclic loads. To achieve this goal, two approaches are followed: Evaluation unsing internal forces: A substitute model is developed to describe the stiffness of self-piercing riveted joints subjected to different loading conditions. The parameters of the substitute model are identified and the internal force components acting on the joint are evaluated. The model provides the basis for the subsequent fatigue life estimation of self-piercing riveted components. For joints subjected to low bending moments, the fatigue life of components can be estimated accurately. Due to lack of specimen geometries producing pure bending and the combination of tension-bending forces, it is not possible to estimate the fatigue life of complex components subjected to high bending moments. Based on the results of [Mesc 16], the methodology is further developed to determine the stresses acting on the joint and to characterize the joining point with the use of simulations. The local concept proposed in the FKM guideline nonlinear provides the basis for the analytical assessment of self-piercing riveted components. In this regard, the cyclic behavior of the material and the local stresses are required as input data. The cyclic behavior of the aluminum EN AW-6181A-T6 and steel HX340LAD sheets were already determined in the previous project. Subsequently, in this project the properties of the rivet made of 38B2 steel are identified. The finite element analysis using elastic-plastic material behavior is used to determine the stresses in the joint subjected to the cyclic loads. To verify the model, the results of simulations and experiments are compared concerning the crack initiation zone as well as the determined number of cycles. To determine the stresses that can be used for the analytical assessment, the damage relevant load components need to be identified. In this regard, it is recommended to use the normal stress perpendicular to the crack propagation direction, the stress of crack opening mode I. Using the damage parameter PRAM and considering the support factors according to the FKM guideline nonlinear, a reliable estimation of the crack initiation zone within the joint is possible. Regarding the joint made of aluminum sheet EN AW-6181A, the methodology is able to provide promising results. However, regarding the joints made of aluminum EN AW-6181A and steel HX340LAD sheets, there is still potential to improve the results. The reasons for this are described in chapter 7.2.5 and 7.2.6. An analytical fatigue assessment is relatively easy to achieve with procedure 1. However, contrary to the objective formulated above, expensive fatigue tests are necessary to determine the failure conditions (strength values). This disadvantage can be circumvented by determining the strength information of individual joining points under different load types using procedure 2. The latter, in return, is not suitable for the assessment of complex components with several joining points. Due to the increasing calculation times of the simulation, the application in this case is not economically reasonable. By the described combination of method 1 and 2, the disadvantages of the two individual concepts can be compensated. An analytical fatigue assessment of self-piercing riveted components can be carried out based on the cyclic material behavior. The objective of the project was achieved.}}, author = {{Otroshi, Mortaza and Meschut, Gerson and Masendorf, Lukas and Esderts, Alfons}}, isbn = {{978-3-86776-602-9}}, pages = {{282}}, publisher = {{Europäische Forschungsgesellschaft für Blechverarbeitung e.V. (EFB)}}, title = {{{Simulationsbasierte Betriebsfestigkeitsanalyse stanzgenieteter Bauteile}}}, year = {{2020}}, } @inproceedings{21174, abstract = {{Overcoming a range of challenges that traditional therapy faces, VRET yields great potential for the treatment of phobias such as acrophobia, the fear of heights. We investigate this potential and present playful user-generated treatment (PUT), a novel game-based approach for VRET. Based on a requirement analysis consisting of a literature review and semi-structured interviews with professional therapists, we designed and implemented the PUT concept as a two-step VR game design. To validate our approach, we conducted two studies. (1) In a study with 31 non-acrophobic subjects, we investigated the effect of content creation on player experience, motivation and height perception, and (2) in an online survey, we collected feedback from professional therapists. Both studies reveal that the PUT approach is well applicable. In particular, the analysis of the user study shows that the design phase leads to increased interest and enjoyment without notably influencing affective measures during the exposure session. Our work can help guiding researchers and practitioners at the intersection of game design and exposure therapy.}}, author = {{Alexandrovsky, Dmitry and Volkmar, Georg and Spliethöver, Maximilian and Finke, Stefan and Herrlich, Marc and Döring, Tanja and Smeddinck, Jan David and Malaka, Rainer}}, booktitle = {{Proceedings of the Annual Symposium on Computer-Human Interaction in Play}}, isbn = {{9781450380744}}, pages = {{32–45}}, publisher = {{Association for Computing Machinery}}, title = {{{Playful User-Generated Treatment: A Novel Game Design Approach for VR Exposure Therapy}}}, doi = {{10.1145/3410404.3414222}}, year = {{2020}}, } @phdthesis{21205, author = {{Wolf, Verena}}, title = {{{Service System Innovation: An Ambidexterity Perspective}}}, year = {{2020}}, } @phdthesis{21209, abstract = {{Die additive Fertigung mittels Laser Powderbed Fusion Verfahren (L-PBF) von Metallen wird zunehmend genutzt, um Funktionsbauteile endkonturnah zu fertigen. Die in der vor-liegenden Arbeit untersuchte Parameter- und Prozessoptimierung liefert einen Beitrag zur wirtschaftlichen Nutzung des L-PBF und zeigt, dass höhere Aufbauraten bei der ganzheit-lichen Betrachtung des Prozesses realisierbar sind. Die Parameter- und Prozessoptimierung erfordert eine Untersuchung des Einflusses der Fertigungs- und Nachbearbeitungsparameter auf das erzeugte Volumen sowie auf die Mikrostruktur und die resultierenden Materialeigenschaften. Das Ziel der vorliegenden Arbeit ist die Entwicklung einer optimierten Prozessführung mit abschließender Bewer-tung der Wirtschaftlichkeit. Mit dem entwickelten Gesamtprozess wird eine um den Faktor 1,6 höhere Aufbaurate erzielt. Des Weiteren wird die Methodik zur Erarbeitung des opti-mierten Prozessfensters beschrieben, sodass die Herangehensweise auf weitere Werk-stoffe angewendet werden kann. Die mechanischen Eigenschaften werden für den stati-schen und dynamischen Lastfall untersucht und mit der Mikrostruktur korreliert. Abschlie-ßend wird die Prozessoptimierung zur Fertigung eines Demonstrators eingesetzt und wirtschaftlich validiert. Die Ergebnisse zeigen, dass durch das hier angewendete Vorge-hen eine Prozesszeitreduktion von 22,5% und eine Kostenreduktion von 11% realisiert werden kann.}}, author = {{Ahlers, Dominik}}, isbn = {{978-3844074246}}, keywords = {{Additive Manufacturing, SLM}}, pages = {{137}}, publisher = {{Shaker}}, title = {{{Parameter- und Prozessoptimierung für den additiven Fertigungsprozess im Pulverbett am Beispiel der Legierung Ti6Al4V }}}, volume = {{19}}, year = {{2020}}, } @inbook{21216, author = {{Jakob, Eva Alexandra and Hansjürgen, Lea}}, booktitle = {{Wettbewerbsfähigkeit von Start-ups, Erfolgreiche Düsseldorfer Unternehmen}}, editor = {{Lutz, Eva and Süß, Stefan}}, pages = {{91--106}}, publisher = {{düsseldorf university press}}, title = {{{Volunteer World GmbH – Schildkrötenretten als Business Case}}}, doi = {{10.1515/9783110663839-008}}, year = {{2020}}, } @article{21239, abstract = {{The electrochemical nitrogen reduction reaction (NRR) to ammonia (NH3) is a promising alternative route for an NH3 synthesis at ambient conditions to the conventional high temperature and pressure Haber--Bosch process without the need for hydrogen gas. Single metal ions or atoms are attractive candidates for the catalytic activation of non-reactive nitrogen (N2), and for future targeted improvement of NRR catalysts, it is of utmost importance to get detailed insights into structure-performance relationships and mechanisms of N2 activation in such structures. Here, we report density functional theory studies on the NRR catalyzed by single Au and Fe atoms supported in graphitic C2N materials. Our results show that the metal atoms present in the structure of C2N are the reactive sites, which catalyze the aforesaid reaction by strong adsorption and activation of N2. We further demonstrate that a lower onset electrode potential is required for Fe--C2N than for Au--C2N. Thus, Fe--C2N is theoretically predicted to be a potentially better NRR catalyst at ambient conditions than Au--C2N owing to the larger adsorption energy of N2 molecules. Furthermore, we have experimentally shown that single sites of Au and Fe supported on nitrogen-doped porous carbon are indeed active NRR catalysts. However, in contrast to our theoretical results, the Au-based catalyst performed slightly better with a Faradaic efficiency (FE) of 10.1{\%} than the Fe-based catalyst with an FE of 8.4{\%} at −0.2 V vs. RHE. The DFT calculations suggest that this difference is due to the competitive hydrogen evolution reaction and higher desorption energy of ammonia.}}, author = {{Sahoo, Sudhir K. and Heske, Julian Joachim and Antonietti, Markus and Qin, Qing and Oschatz, Martin and Kühne, Thomas}}, journal = {{ACS Applied Energy Materials}}, number = {{10}}, pages = {{10061--10069}}, publisher = {{American Chemical Society}}, title = {{{Electrochemical N2 Reduction to Ammonia Using Single Au/Fe Atoms Supported on Nitrogen-Doped Porous Carbon}}}, doi = {{10.1021/acsaem.0c01740}}, volume = {{3}}, year = {{2020}}, } @article{21241, abstract = {{In this work, a high-throughput screening of binary and ternary pnictide- and halide-based compounds is performed to identify promising p-type transparent conductors. Our investigation profits from the emergence of open-access databases based on ab-initio results. The band gap, stability, hole effective mass, and p-type dopability are employed for the materials screening and the validity of these descriptors is discussed. Among the final candidates, BaSiN2 is the most promising compound.}}, author = {{Wiebeler, Hendrik and Kormath Madam Raghupathy, Ramya and Mirhosseini, S. Hossein and Kühne, Thomas}}, journal = {{Journal of Physics: Materials}}, number = {{1}}, pages = {{015004}}, publisher = {{{IOP} Publishing}}, title = {{{Virtual screening of nitrogen-, phosphorous- and halide-containing materials as p-type transparent conductors}}}, doi = {{10.1088/2515-7639/abc762}}, volume = {{4}}, year = {{2020}}, } @article{21257, abstract = {{Digital data on tangible and intangible cultural assets is an essential part of daily life, communication and experience. It has a lasting influence on the perception of cultural identity as well as on the interactions between research, the cultural economy and society. Throughout the last three decades, many cultural heritage institutions have contributed a wealth of digital representations of cultural assets (2D digital reproductions of paintings, sheet music, 3D digital models of sculptures, monuments, rooms, buildings), audio-visual data (music, film, stage performances), and procedural research data such as encoding and annotation formats. The long-term preservation and FAIR availability of research data from the cultural heritage domain is fundamentally important, not only for future academic success in the humanities but also for the cultural identity of individuals and society as a whole. Up to now, no coordinated effort for professional research data management on a national level exists in Germany. NFDI4Culture aims to fill this gap and create a user-centered, research-driven infrastructure that will cover a broad range of research domains from musicology, art history and architecture to performance, theatre, film, and media studies. The research landscape addressed by the consortium is characterized by strong institutional differentiation. Research units in the consortium's community of interest comprise university institutes, art colleges, academies, galleries, libraries, archives and museums. This diverse landscape is also characterized by an abundance of research objects, methodologies and a great potential for data-driven research. In a unique effort carried out by the applicant and co-applicants of this proposal and ten academic societies, this community is interconnected for the first time through a federated approach that is ideally suited to the needs of the participating researchers. To promote collaboration within the NFDI, to share knowledge and technology and to provide extensive support for its users have been the guiding principles of the consortium from the beginning and will be at the heart of all workflows and decision-making processes. Thanks to these principles, NFDI4Culture has gathered strong support ranging from individual researchers to high-level cultural heritage organizations such as the UNESCO, the International Council of Museums, the Open Knowledge Foundation and Wikimedia. On this basis, NFDI4Culture will take innovative measures that promote a cultural change towards a more reflective and sustainable handling of research data and at the same time boost qualification and professionalization in data-driven research in the domain of cultural heritage. This will create a long-lasting impact on science, cultural economy and society as a whole.}}, author = {{Altenhöner, Reinhard and Blümel, Ina and Boehm, Franziska and Bove, Jens and Bicher, Katrin and Bracht, Christian and Brand, Ortrun and Dieckmann, Lisa and Effinger, Maria and Hagener, Malte and Hammes, Andrea and Heller, Lambert and Kailus, Angela and Kohle, Hubertus and Ludwig, Jens and Münzmay, Andreas and Pittroff, Sarah and Razum, Matthias and Röwenstrunk, Daniel and Sack, Harald and Simon, Holger and Schmidt, Dörte and Schrade, Torsten and Walzel, Annika-Valeska and Wiermann, Barbara}}, issn = {{2367-7163}}, journal = {{Research Ideas and Outcomes}}, title = {{{NFDI4Culture - Consortium for research data on material and immaterial cultural heritage}}}, doi = {{10.3897/rio.6.e57036}}, year = {{2020}}, } @inbook{21268, author = {{Huhmann, Tobias and Eilterts, Katja and Schulte, Carsten and Winkelnkemper, Felix}}, booktitle = {{Digitales Lernen in der Grundschule II: Aktuelle Trends in Forschung und Praxis}}, publisher = {{Waxmann Verlag}}, title = {{{Der Darstellungsflüchtigkeit im Geometrieunterricht durch digitale Unterstützung entgegenwirken}}}, year = {{2020}}, } @article{21269, author = {{Ködding, Patrick and Reinhold, Jannik and Scholtysik, Michel and Dumitrescu, Roman}}, issn = {{1690-4524}}, journal = {{Journal of Systemics, Cybernetics and Informatics}}, number = {{2}}, pages = {{pp. 14--19}}, title = {{{Consulting via Research in IMPRESS}}}, volume = {{18}}, year = {{2020}}, } @article{21281, author = {{Drewel, Marvin and Özcan, Leon and Koldewey, Christian and Gausemeier, Jürgen}}, issn = {{0963-1690}}, journal = {{Creativity and Innovation Management}}, title = {{{Pattern‐based development of digital platforms}}}, doi = {{10.1111/caim.12415}}, year = {{2020}}, } @article{21282, abstract = {{ In recent times societal crises such as the coronavirus disease 2019 outbreak have given rise to a tension between formal ‘command and control’ and informal social media activated self-organising information and communication systems that are utilised for crisis management decision-making. Social media distrust affects the dissemination of disaster information as it entails shifts in media perception and participation but also changes in the way individuals and organisations make sense of information in critical situations. So far, a little considered notion in this domain is the concept of sense-giving. Originating from organisational theory, it is used to explain the mechanisms behind intentional information provision that fosters collective meaning creation. In our study, we seek to understand the potential impact of sense-giving from Twitter crisis communication generated during the Hurricane Harvey disaster event. Social network and content analyses performed with a dataset of 9,414,463 tweets yielded insights into how sense-giving occurs during a large-scale disaster event. Theoretically, we specified (1) perpetual sense-giving, which relies primarily on topical authority and frequency; as well as (2) intermittent sense-giving, which occurs from high value of message content and leverage of popularity, that is, retweets. Our findings emphasise the importance of information-rich actors in communication networks and the leverage of their influence in crises such as coronavirus disease 2019 to reduce social media distrust and facilitate sense-making. }}, author = {{Mirbabaie, Milad and Bunker, Deborah and Stieglitz, Stefan and Marx, Julian and Ehnis, Christian}}, issn = {{0268-3962}}, journal = {{Journal of Information Technology}}, pages = {{195--213}}, title = {{{Social media in times of crisis: Learning from Hurricane Harvey for the coronavirus disease 2019 pandemic response}}}, doi = {{10.1177/0268396220929258}}, year = {{2020}}, } @article{21287, abstract = {{Peer-to-peer markets are especially suitable for the analysis of online ratings as they represent two-sided markets that match buyers to sellers and thus lead to reduced scope for opportunistic behavior. We decompose the online ratings by focusing on the customer’s decision-making process in a leading peer-to-peer ridesharing platform. Using data from the leading peer-to-peer ridesharing platform BlaBlaCar, we analyze 17,584 users registered between 2004 and 2014 and their online ratings focusing on the decomposition of the explicit determinants reflecting the variance of online ratings. We find clear evidence to suggest that a driver’s attitude towards music, pets, smoking, and conversation has a significantly positive influence on his received online ratings. However, we also show that the interaction of female drivers and their attitude towards pets has a significantly negative effect on average ratings.}}, author = {{Kaimann, Daniel}}, issn = {{2071-1050}}, journal = {{Sustainability}}, number = {{15}}, title = {{{Behind the Review Curtain: Decomposition of Online Consumer Ratings in Peer-to-Peer Markets}}}, doi = {{10.3390/su12156185}}, volume = {{12}}, year = {{2020}}, } @article{21306, author = {{Stieglitz, Stefan and Wilms, Konstantin and Mirbabaie, Milad and Hofeditz, Lennart and Brenger, Bela and López, Ania and Rehwald, Stephanie}}, issn = {{1932-6203}}, journal = {{PLOS ONE}}, title = {{{When are researchers willing to share their data? – Impacts of values and uncertainty on open data in higher education}}}, doi = {{10.1371/journal.pone.0234172}}, year = {{2020}}, } @inproceedings{21315, author = {{Hofeditz, L. and Mirbabaie, Milad and Stieglitz, S.}}, booktitle = {{Proceedings of the 31st Australasian Conference on Information Systems}}, title = {{{Virtually Extended Coworking Spaces – The Reinforcement of Social Proximity, Motivation and Knowledge Sharing Through ICT}}}, year = {{2020}}, } @inproceedings{21316, author = {{Mirbabaie, Milad and Marx, J. and Braun, L.-M. and Stieglitz, S.}}, booktitle = {{Proceedings of the 31st Australasian Conference on Information Systems}}, title = {{{Digital Detox – Mitigating Digital Overuse in Times of Remote Work and Social Isolation}}}, year = {{2020}}, } @inproceedings{21317, author = {{Marx, J. and Brünker, F. and Mirbabaie, Milad and Hochstrate, E.}}, booktitle = {{Proceedings of the 31st Australasian Conference on Information Systems}}, title = {{{‘Conspiracy Machines’ - The Role of Social Bots during the COVID-19 ‘Infodemic’}}}, year = {{2020}}, } @inproceedings{21318, author = {{Fromm, J. and Mirbabaie, Milad and Stieglitz, S.}}, booktitle = {{Proceedings of the Twenty-Eight European Conference on Information Systems}}, title = {{{A Systematic Review of Empirical Affordance Studies: Recommendations for Affordance Research in Information Systems}}}, year = {{2020}}, } @inproceedings{21319, author = {{Mirbabaie, Milad and Stieglitz, S. and Lambertz, L.}}, booktitle = {{Proceedings of the 15th International Conference on Wirtschaftsinformatik}}, title = {{{The Usage of Twitter Data for Early Crisis Detection}}}, year = {{2020}}, } @inproceedings{21320, author = {{Brünker, F. and Marx, J. and Ross, B. and Mirbabaie, Milad and Stieglitz, S.}}, booktitle = {{Proceedings of the 15. Internationaler Kongress Für Wirtschaftsinformatik}}, title = {{{‘The Tireless Selling-Machine’ – Commercial Deployment of Social Bots during Black Friday Season on Twitter}}}, year = {{2020}}, } @inproceedings{21321, author = {{Fromm, J. and Mirbabaie, Milad and Stieglitz, S.}}, booktitle = {{Proceedings of the 15. Internationaler Kongress Für Wirtschaftsinformatik}}, title = {{{The Effects of Virtual Reality Affordances and Constraints on Negative Group Effects during Brainstorming Sessions}}}, year = {{2020}}, } @inproceedings{21322, author = {{Brünker, F. and Wischnewski, M. and Mirbabaie, Milad and Meinert, J.}}, booktitle = {{Proceedings of the 51nd Hawaii International Conference on System Sciences}}, title = {{{The Role of Social Media during Social Movements – Observations from the #metoo Debate on Twitter}}}, year = {{2020}}, } @misc{21324, author = {{Chandrakar, Khushboo}}, title = {{{Comparison of Feature Selection Techniques to Improve Approximate Circuit Synthesis}}}, year = {{2020}}, } @inproceedings{21377, author = {{Pierenkemper, Christoph and Gausemeier, Jürgen}}, booktitle = {{Proceeding of the ISPIM Connects}}, location = {{Bangkok}}, title = {{{Developing Strategies for Digital Transformation in SMEs with Maturity Models}}}, year = {{2020}}, } @article{21379, author = {{Dumitrescu, Roman and Drewel, Marvin and Falkowski, Tommy}}, journal = {{ZWF, Zeitschrift für wirtschaftliche Fabrikplanung}}, number = {{1-2}}, pages = {{86 -- 90}}, title = {{{KI-Marktplatz: Das Ökosystem für Künstliche Intelligenz in der Produktentstehung}}}, year = {{2020}}, } @inproceedings{21380, author = {{Anacker, Harald and Dumitrescu, Roman and Kharatyan, Aschot and Lipsmeier, Andre}}, booktitle = {{Proceedings of the Design Society}}, location = {{Cavtat}}, pages = {{1195--1204}}, title = {{{Pattern based systems engineering – application of solution patterns in the design of intelligent technical systems}}}, year = {{2020}}, } @inproceedings{21381, author = {{Lipsmeier, Andre and Kühn, Arno and Joppen, Robert and Dumitrescu, Roman}}, booktitle = {{Procedia CIRP}}, number = {{88}}, pages = {{173--178}}, title = {{{Process for the development of a digital strategy}}}, year = {{2020}}, } @inproceedings{21382, author = {{Japs, Segej and Kharatyan, Aschot and Tekaat, Julian and Kaiser, Lydia and Dumitrescu, Roman}}, booktitle = {{Proceedings of the Design Society}}, location = {{Cavtat}}, title = {{{Method for 3D-Environment Driven Domain Knowledge Elicitaion and System Model Generation}}}, year = {{2020}}, } @inproceedings{21383, author = {{Jürgenhake, Christoph and Anacker, Harald and Dumitrescu, Roman}}, booktitle = {{Proceedings of the IEEE}}, location = {{Dortmund}}, title = {{{The digital Stadium – From future scenarios to technology and business model development}}}, year = {{2020}}, } @inproceedings{21384, author = {{Röltgen, Daniel and Dumitrescu, Roman}}, booktitle = {{Procedia CIRP}}, number = {{91}}, pages = {{93--100}}, title = {{{Classification of Industrial Augmented Reality Use Cases}}}, year = {{2020}}, } @inproceedings{21385, author = {{Hobscheidt, Daniela and Kühn, Arno and Dumitrescu, Roman}}, booktitle = {{Procedia CIRP}}, number = {{91}}, pages = {{832–837}}, title = {{{Development of risk-optimized implementation paths for Industry 4.0 based on socio-technical pattern}}}, year = {{2020}}, } @inproceedings{21386, author = {{Wortmann, Fabio and Ellermann, Kai and Kühn, Arno and Dumitrescu, Roman}}, booktitle = {{Procedia CIRP}}, number = {{91}}, pages = {{559--564}}, title = {{{Ideation for digital platforms based on a companies‘ ecosystem}}}, year = {{2020}}, } @inproceedings{21387, author = {{Dyck, Florian and Stöcklein, Jörg and Eckertz, Daniel and Dumitrescu, Roman}}, booktitle = {{Virtual, Augmented and Mixed Reality. Design and Interaction }}, location = {{Copenhagen}}, pages = {{37--49}}, title = {{{Mixed Mock-up – Development of an Interactive Augmented Reality System for Assembly Planning}}}, year = {{2020}}, } @inproceedings{21388, author = {{Bretz, Lukas and Koenemann, Ulf and Anacker, Harald and Dumitrescu, Roman}}, booktitle = {{Procedia CIRP}}, number = {{91}}, pages = {{101--106}}, title = {{{A contribution to the design of organizational structures suitable for Systems Engineering}}}, year = {{2020}}, } @inproceedings{21389, author = {{Hillebrand, Michael and Greinert, Matthias and Herzog, Otthein and Dumitrescu, Roman}}, booktitle = {{Proceedings of the 2020 IEEE 15th International Conference of System of Systems Engineering (SoSE)}}, location = {{Budapest}}, pages = {{163--168}}, title = {{{Advanced Monkey Testing for connected autonomous systems}}}, year = {{2020}}, } @inproceedings{21390, author = {{Hillebrand, Michael and Lakhani, Mohsin and Dumitrescu, Roman}}, booktitle = {{Procedia Manufacturing 52}}, number = {{52}}, pages = {{266--271}}, title = {{{A design methodology for deep reinforcement learning for autonomous Systems}}}, doi = {{https://doi.org/10.1016/j.promfg.2020.11.044}}, year = {{2020}}, } @inbook{21391, author = {{Reinhart, Felix and von Enzberg, Sebastian and Kühn, Arno and Dumitrescu, Roman}}, booktitle = {{Machine Learning for Cyber Physical Systems. Technologien für die intelligente Automation (Technologies for Intelligent Automation)}}, editor = {{Beyerer, Jürgen and Maier, Alexander and Niggemann, Oliver}}, pages = {{25--33}}, publisher = {{Springer Vieweg, Berlin, Heidelberg}}, title = {{{Machine Learning for Process-X: A Taxonomy}}}, volume = {{11}}, year = {{2020}}, } @inproceedings{21392, author = {{Henkenjohann, Mark and Joppen, Robert and Köchling, Daniel and von Enzberg, Sebastian and Kühn, Arno and Dumitrescu, Roman}}, booktitle = {{Procedia CIRP}}, location = {{Gulf of Naples}}, title = {{{Identification and specification of standard modules in production for a material flow simulation}}}, year = {{2020}}, } @inproceedings{21394, author = {{Grote, Eva-Maria and Pfeifer, Stefan and Röltgen, Daniel and Kühn, Arno and Dumitrescu, Roman}}, booktitle = {{Proceedings of the 2020 IEEE International Symposium on Systems Engineering}}, location = {{Wien}}, title = {{{Towards defining role models in Advanced Systems Engineering}}}, year = {{2020}}, } @inbook{21395, author = {{Dumitrescu, Roman and Tschirner, Christian and Bansmann, Michael}}, booktitle = {{Handbuch Gestaltung digitaler und vernetzter Arbeitswelten}}, editor = {{Maier, Günter and Engels, Gregor and Steffen, Eckhard}}, pages = {{405--432}}, publisher = {{Springer-Verlag GmbH}}, title = {{{Systems Engineering als Grundlage der Gestaltung digitaler Arbeitswelten in der Produktentstehung}}}, year = {{2020}}, } @inbook{21396, abstract = {{Verifiable random functions (VRFs) are essentially digital signatures with additional properties, namely verifiable uniqueness and pseudorandomness, which make VRFs a useful tool, e.g., to prevent enumeration in DNSSEC Authenticated Denial of Existence and the CONIKS key management system, or in the random committee selection of the Algorand blockchain. Most standard-model VRFs rely on admissible hash functions (AHFs) to achieve security against adaptive attacks in the standard model. Known AHF constructions are based on error-correcting codes, which yield asymptotically efficient constructions. However, previous works do not clarify how the code should be instantiated concretely in the real world. The rate and the minimal distance of the selected code have significant impact on the efficiency of the resulting cryptosystem, therefore it is unclear if and how the aforementioned constructions can be used in practice. First, we explain inherent limitations of code-based AHFs. Concretely, we assume that even if we were given codes that achieve the well-known Gilbert-Varshamov or McEliece-Rodemich-Rumsey-Welch bounds, existing AHF-based constructions of verifiable random functions (VRFs) can only be instantiated quite inefficiently. Then we introduce and construct computational AHFs (cAHFs). While classical AHFs are information-theoretic, and therefore work even in presence of computationally unbounded adversaries, cAHFs provide only security against computationally bounded adversaries. However, we show that cAHFs can be instantiated significantly more efficiently. Finally, we use our cAHF to construct the currently most efficient verifiable random function with full adaptive security in the standard model.}}, author = {{Jager, Tibor and Niehues, David}}, booktitle = {{Lecture Notes in Computer Science}}, isbn = {{9783030384708}}, issn = {{0302-9743}}, keywords = {{Admissible hash functions, Verifiable random functions, Error-correcting codes, Provable security}}, location = {{Waterloo, Canada}}, title = {{{On the Real-World Instantiability of Admissible Hash Functions and Efficient Verifiable Random Functions}}}, doi = {{10.1007/978-3-030-38471-5_13}}, year = {{2020}}, } @article{21403, abstract = {{Es werden die Anwendungsvoraussetzungen des § 6a GrEStG unter Berücksichtigung der jüngsten BFH-Rspr. dargestellt und ein tabellarischer Überblick über die einzelnen Entscheidungen gegeben. Ausgehend von den Urteilsfällen wird auf die grunderwerbsteuerliche Behandlung von verschiedenen Umwandlungen eingegangen. In einem Ausblick wird der Bezug zum aktuellen Gesetzgebungsverfahren zur Reform der GrESt hergestellt.}}, author = {{Binder, Sebastian and Lorenz, Johannes}}, journal = {{Der Konzern}}, number = {{3}}, pages = {{98--104}}, title = {{{Update zur grunderwerbsteuerlichen Konzernklausel vor dem Hintergrund der jüngsten BFH-Rechtsprechung}}}, volume = {{18}}, year = {{2020}}, } @techreport{21406, abstract = {{Previous accounting research shows that taxes affect decision making by individuals and firms. Most studies assume that agents have an accurate perception regarding their tax burden. However, there is a growing body of literature analyzing whether taxes are indeed perceived correctly. We review 127 studies on the measurement of tax misperception and its behavioral implications. The review reveals that many taxpayers have substantial tax misperceptions that lead to biased decision making. We develop a Behavioral Taxpayer Response Model on the impact of provided tax information on tax perception. Besides individual traits, characteristics of the tax information and the decision environment determine the extent of tax misperception. We discuss opportunities for future research and methodological limitations. While there is much evidence on tax misperception at the individual level, we hardly find any research at the firm level. Little is known about the real effects of managers’ tax misperception and on how tax information is strategically managed to impact stakeholders. This research gap is surprising as a large part of the accounting literature analyzes decision making and disclosure of firms. We recommend a mixed-method approach combining experiments, surveys, and archival data analyses to improve the knowledge on tax misperception and its consequences.}}, author = {{Blaufus, Kay and Chirvi, Malte and Huber, Hans-Peter and Maiterth, Ralf and Sureth-Sloane, Caren}}, title = {{{Tax Misperception and Its Effects on Decision Making - a Literature Review}}}, volume = {{No. 39}}, year = {{2020}}, } @techreport{21407, author = {{Bornemann, Tobias and Schipp, Adrian and Sureth-Sloane, Caren}}, title = {{{ 2018/2019 Umfrage zur Steuerkomplexität in deutschen Finanzverwaltungen}}}, doi = {{10.52569/ILCP9945}}, year = {{2020}}, } @inbook{21408, abstract = {{This study presents a model in which heterogenous, risk-averse agents can use either (legal) tax optimisation or (illegal) tax evasion to reduce their tax burden and thus increase their utility. In addition to introducing individual variables like risk aversion or income, we allow agents to observe the behaviour of their neighbours. Depending on the behaviour of their peer group’s members, the agents’ utilities may increase or decrease, respectively. Simulation results show that taxpayers favour illegal evasion over legal optimisation in most cases. We find that interactions between taxpayers and their social networks have a deep impact on aggregate behaviour. Parameter changes such as increasing audit rates affect the results, often being intensified by social interactions. The effect of such changes varies depending on whether or not a fraction of agents is considered inherently honest.}}, author = {{Diller, Markus and Lorenz, Johannes and Meier, David}}, booktitle = {{ Operations Research Proceedings 2019}}, editor = {{Neufeld, Janis S. and Buscher, Udo and Lasch, Rainer and Möst, Dominik and Schönberger, Jörn}}, isbn = {{978-3-030-48439-2}}, pages = {{633--639}}, publisher = {{Springer}}, title = {{{Tax Avoidance and Social Control}}}, doi = {{10.1007/978-3-030-48439-2_77}}, year = {{2020}}, } @techreport{21409, abstract = {{European regulation mandates public country-by-country reporting for banks and is expected to increase reputational costs in case of tax haven activities. We test whether the availability of additional public information on the locations of banks' subsidiaries reduces their tax haven presence. In a preliminary difference-in-difference analysis we find that indeed, tax haven presence in “Dot-Havens” has declined significantly after the introduction of mandatory public country-by-country reporting for European banks, as compared to the insurance industry which is not subject to this regulation.}}, author = {{Eberhartinger, Eva and Speitmann, Raffael and Sureth-Sloane, Caren}}, title = {{{Real Effects of Public Country-by-Country Reporting and the Firm Structure of European Banks}}}, volume = {{#2020-01}}, year = {{2020}}, } @techreport{21410, abstract = {{We analyze the impact of trust on bargaining behavior between auditor and auditee in a tax setting. We study the effect of interpersonal trust and trust in government on both taxpayer and tax auditor. In an experiment with variation in pairwise trust settings, we find evidence that both kinds of trust affect the bargaining behavior, albeit in different ways. While trust in government increases taxpayers’ tax offers, interpersonal trust may lead to more concessionary behavior of tax auditors moderated by trust in government. Our findings help tax authorities to shape programs to enhance compliance in an atmosphere of trust.}}, author = {{Eberhartinger, Eva and Speitmann, Raffael and Sureth-Sloane, Caren}}, title = {{{How Does Trust Affect Concessionary Behavior in Tax Bargaining?}}}, volume = {{No. 41}}, year = {{2020}}, } @techreport{21411, abstract = {{This study examines the visibility of the GAAP effective tax rate (ETR) in firms’ financial statements as a distinct disclosure choice. Applying a game-theory disclosure model for voluntary disclosure strategies of firms to a tax setting, we argue that firms face a trade-off in their ETR disclosure decisions. On the one hand, firms have an incentive to enhance their ETR disclosure when the ratio offers shareholders “favourable conditions”, for example in terms of higher expected after-tax cash-flows. On the other hand, the disclosure of a favourable low ETR could attract the attention of tax auditors and the public and ultimately result in disclosure costs. We empirically test disclosure behaviour by examining the relation between disclosure visibility and different ETR conditions that reflect different stakeholder specific costs and benefits. While we find that unfavourable ETR conditions are not highlighted, we observe higher disclosure visibility for favourable ETRs (smooth, close to the industry average, decreasing). Additional analyses reveal that this high visibility is characteristic of firm-years with only moderately decreasing ETRs at usual ETR levels, while extreme ETRs are not highlighted. Interestingly and in contrast to our main results, a subsample of family firms do not seem to highlight favourable ETRs.}}, author = {{Flagmeier, Vanessa and Müller, Jens and Sureth-Sloane, Caren}}, title = {{{When Do Firms Highlight Their Effective Tax Rate?}}}, volume = {{No. 37}}, year = {{2020}}, } @article{21412, author = {{Heile, Vanessa and Huber, Hans-Peter and Maiterth, Ralf and Sureth-Sloane, Caren}}, journal = {{Deutsches Steuerrecht}}, number = {{42}}, pages = {{2327--2334}}, title = {{{Steuerliche Maßnahmen als nützliches Mittel zur Bewältigung der Corona-Krise? - Ergebnisse einer Unternehmensbefragung}}}, volume = {{58}}, year = {{2020}}, } @techreport{21414, author = {{Heile, Vanessa and Huber, Hans-Peter and Maiterth, Ralf and Sureth-Sloane, Caren}}, title = {{{Umfrage: Steuerliche Verwaltungskosten, steuerliche Corona-Soforthilfemaßnahmen und Investitionen in der Krise}}}, doi = {{10.52569/RUHF6645}}, year = {{2020}}, } @article{21415, abstract = {{This article comprehensively reviews Australia’s corporate income tax complexity as faced by multinational corporations (MNCs) and compares it to the average of the remaining OECD countries. Building on unique survey data, I find that the Australian tax code is considerably more complex than the OECD average, which is mainly due to overly complex anti-avoidance legislation, such as regulations on transfer pricing, general anti-avoidance or controlled foreign corporations (CFC). In contrast, Australia’s tax framework, which covers processes and features such as tax law enactment or tax audits, is close to the OECD average. A more detailed analysis yields further interesting insights. For example, excessive details in the tax code and the time between the announcement of a tax law change and its enactment turn out to be serious issues in Australia relative to the remaining OECD countries. }}, author = {{Hoppe, Thomas}}, journal = {{Australian Tax Forum}}, number = {{4}}, pages = {{451--475}}, title = {{{Tax Complexity in Australia – a Survey-Based Comparison to the OECD Average}}}, volume = {{35}}, year = {{2020}}, } @techreport{21416, abstract = {{This article comprehensively reviews Australia’s corporate income tax complexity as faced by multinational corporations (MNCs) and compares it to the average of the remaining OECD countries. Building on unique survey data, I find that the Australian tax code is considerably more complex than the OECD average, which is mainly due to overly complex anti-avoidance legislation, such as regulations on transfer pricing, general anti-avoidance or controlled foreign corporations (CFC). In contrast, Australia’s tax framework, which covers processes and features such as tax law enactment or tax audits, is close to the OECD average. A more granular analysis yields further interesting insights. For example, excessive details in the tax code and the time between the announcement of a tax law change and its enactment turn out to be serious issues in Australia relative to the remaining OECD countries.}}, author = {{Hoppe, Thomas}}, title = {{{Tax Complexity in Australia - A Survey-Based Comparison to the OECD Average}}}, volume = {{No. 14}}, year = {{2020}}, } @techreport{21417, author = {{Hoppe, Thomas and Schanz, Deborah and Schipp, Adrian and Siegel, Felix and Sturm, Susann and Sureth-Sloane, Caren}}, title = {{{2018 Global MNC Tax Complexity Survey}}}, doi = {{10.52569/RPVO1003}}, year = {{2020}}, } @techreport{21418, abstract = {{This paper introduces an index that comprehensively measures the complexity of countries’ corporate income tax systems faced by multinational corporations. It builds on surveys of highly experienced tax consultants of the largest international tax services networks. The index, called the Tax Complexity Index (TCI), is composed of a tax code subindex covering tax regulations and a tax framework subindex covering tax processes and features. For a sample of 100 countries, we find that tax complexity varies considerably across countries, and tax code and framework complexity also vary within countries. Among others, tax complexity is strongly driven by the complexity of transfer pricing regulations in the tax code and tax audits in the tax framework. When analyzing the associations with other country characteristics, we identify different patterns. For example, with regard to GDP, we find a positive association with tax code complexity and a negative association with tax framework complexity, suggesting that highly economically developed countries tend to have more complex tax codes and less complex frameworks. Overall, our tax complexity measures can serve as valuable proxies in future research and supportive tools for a variety of firm decisions and national and international tax policy discussions.}}, author = {{Hoppe, Thomas and Schanz, Deborah and Sturm, Susann and Sureth-Sloane, Caren}}, title = {{{Measuring Tax Complexity Across Countries: A Survey Study on MNCs}}}, volume = {{No. 5}}, year = {{2020}}, } @techreport{21419, abstract = {{This paper analyzes the association between tax complexity and foreign direct investments (FDI) based on the newly developed Tax Complexity Index (TCI) and its components. For a sample of 15,607 new foreign subsidiaries, we find no association between total tax complexity, as proxied by the TCI, and the location probability. When we decompose the TCI into tax code complexity and tax framework complexity, we find opposing associations. Tax code complexity is positively related to the location probability, while tax framework complexity is negatively related to it. These associations are, for example, driven by the complexity of transfer pricing and loss offset regulations in the tax code and the dimensions guidance, audits, as well as filing and payments, in the tax framework. In additional analyses, we find that the associations are sensitive to certain characteristics, such as country-specific and firm-specific characteristics. For example, the positive tax code association diminishes when tax rates are high. Overall, we are the first to provide empirical evidence on potential cost-benefit tradeoffs of tax complexity for FDI and thereby enhance prior literature, which has primarily focused on the costs of tax complexity.}}, author = {{Hoppe, Thomas and Schanz, Deborah and Sturm, Susann and Sureth-Sloane, Caren and Voget, Johannes}}, title = {{{The Relation between Tax Complexity and Foreign Direct Investments: Evidence Across Countries}}}, volume = {{No. 13}}, year = {{2020}}, } @article{21422, author = {{Sureth-Sloane, Caren}}, journal = {{AWV-Informationen}}, number = {{5}}, pages = {{16--19}}, title = {{{Steuerkomplexität als Standortfaktor. So komplex ist das Steuersystem in Deutschland}}}, year = {{2020}}, } @misc{21432, abstract = {{Robots are becoming increasingly autonomous and more capable. Because of a limited portable energy budget by e.g. batteries, and more demanding algorithms, an efficient computation is of interest. Field Programmable Gate Arrays (FPGAs) for example can provide fast and efficient processing and the Robot Operating System (ROS) is a popular middleware used for robotic applications. The novel ReconROS combines version 2 of the Robot Operating System with ReconOS, a framework for integrating reconfigurable hardware. It provides a unified interface between software and hardware. ReconROS is evaluated in this thesis by implementing a Sobel filter as the video processing application, running on a Zynq-7000 series System on Chip. Timing measurements were taken of execution and transfer times and were compared to theoretical values. Designing the hardware implementation is done by C code using High Level Synthesis and with the interface and functionality provided by ReconROS. An important aspect is the publish/subscribe mechanism of ROS. The Operating System interface functions for publishing and subscribing are reasonably fast at below 10 ms for a 1 MB color VGA image. The main memory interface performs well at higher data sizes, crossing 100 MB/s at 20 kB and increasing to a maximum of around 150 MB/s. Furthermore, the hardware implementation introduces consistency to the execution times and performs twice as fast as the software implementation.}}, author = {{Henke, Luca-Sebastian}}, title = {{{Evaluation of a ReconOS-ROS Combination based on a Video Processing Application}}}, year = {{2020}}, } @inproceedings{21438, author = {{Japs, Segej and Kharatyan, Aschot and Kaiser, Lydia and Dumitrescu, Roman}}, booktitle = {{Proceedings of the 16th International Design Conference (DESIGN 2020)}}, location = {{Cavtat}}, title = {{{CONSENS 3D: Method for 3D-Environment Driven Domain Knowledge Elicitaion and System Model Generation}}}, year = {{2020}}, } @inproceedings{21439, author = {{Pfeifer, Stefan and Seidenberg, Tobias and Jürgenhake, Christoph and Anacker, Harald and Dumitrescu, Roman}}, booktitle = {{Procedia Manufacturing}}, title = {{{Towards a modular product architecture for electric ferries using Model- Based Systems Engineering}}}, year = {{2020}}, } @inproceedings{21440, author = {{Wiecher, Carsten and Japs, Sergej and Kaiser, Lydia and Greenyer, Joel and Wolff, Carsten and Dumitrescu, Roman}}, booktitle = {{ACM/IEEE 23rd International Conference on Model Driven Engineering Languages and Systems (MODELS ’20 Companion)}}, title = {{{Scenarios in the Loop: Integrated Requirements Analysis and Automotive System Validation}}}, year = {{2020}}, } @inproceedings{21441, author = {{Yee, Jingye and Low, Cheng Yee and Ong, P. and Soh, WS and Hannapiah, Fazah Akhtar and Zakaria, NC and von Enzberg, Sebastian and Asmar, Laban and Dumitrescu, Roman}}, booktitle = {{IOP Conference Series: Materials Science and Engineering}}, title = {{{Verification of Mathematical Model for Upper Limb Spasticity with Clinical Data}}}, doi = {{10.1088/1757-899x/824/1/012013}}, year = {{2020}}, } @article{21444, author = {{Heggemann, Thomas and Homberg, Werner and Sapli, Hüseyin}}, issn = {{2351-9789}}, journal = {{Procedia Manufacturing}}, pages = {{36--42}}, title = {{{Combined Curing and Forming of Fiber Metal Laminates}}}, doi = {{10.1016/j.promfg.2020.04.118}}, year = {{2020}}, } @inproceedings{21480, author = {{Anjorin, Anthony and Weidmann, Nils and Oppermann, Robin and Fritsche, Lars and Schürr, Andy}}, booktitle = {{Proceedings of the 23rd ACM/IEEE International Conference on Model Driven Engineering Languages and Systems, MODELS 2020}}, editor = {{Syriani, Eugene and Sahraoui, Houari and de Lara, Juan and Abrahao, Silvia}}, isbn = {{9781450370196}}, location = {{Virtual Event, Canada}}, publisher = {{ACM}}, title = {{{Automating test schedule generation with domain-specific languages}}}, doi = {{10.1145/3365438.3410991}}, year = {{2020}}, } @inproceedings{21481, author = {{Weidmann, Nils and Fritsche, Lars and Anjorin, Anthony}}, booktitle = {{Proceedings of the 13th ACM SIGPLAN International Conference on Software Language Engineering, SLE 2020}}, editor = {{Lämmel, Ralf and Tratt, Laurcence and de Lara, Juan}}, isbn = {{9781450381765}}, location = {{Virtual Event, USA}}, publisher = {{ACM}}, title = {{{A search-based and fault-tolerant approach to concurrent model synchronisation}}}, doi = {{10.1145/3426425.3426932}}, year = {{2020}}, } @inproceedings{21482, author = {{Weidmann, Nils and Anjorin, Anthony and Cheney, James}}, booktitle = {{Proceedings of the Eleventh International Workshop on Graph Computation Models, GCM@STAF 2020}}, editor = {{Hoffmann, Berthold and Minas, Mark}}, issn = {{2075-2180}}, location = {{Online-Workshop}}, pages = {{1--12}}, publisher = {{EPTCS}}, title = {{{VICToRy: Visual Interactive Consistency Management in Tolerant Rule-based Systems}}}, doi = {{10.4204/eptcs.330.1}}, year = {{2020}}, } @inproceedings{21483, author = {{Jovanovikj, Ivan and Weidmann, Nils and Yigitbas, Enes and Anjorin, Anthony and Sauer, Stefan and Engels, Gregor}}, booktitle = {{Proceedings of the First International Conference on Systems Modelling and Management, ICSMM 2020 }}, editor = {{Babur, Önder and Denil, Joachim and Vogel-Heuser, Birgit}}, isbn = {{9783030581664}}, issn = {{1865-0929}}, location = {{Bergen, Norway}}, publisher = {{Springer}}, title = {{{A Model-Driven Mutation Framework for Validation of Test Case Migration}}}, doi = {{10.1007/978-3-030-58167-1_2}}, year = {{2020}}, } @misc{21486, booktitle = {{ERCIM News}}, editor = {{Bernijazov, Ruslan and Özcan, Leon and Dumitrescu, Roman}}, number = {{122}}, pages = {{36--37}}, title = {{{AI Marketplace – The Ecosystem for Artificial Intelligence in Product Creation }}}, year = {{2020}}, } @inproceedings{21522, author = {{Sapli, Hüseyin and Heggemann, Thomas and Homberg, Werner}}, location = {{Karlsruhe}}, title = {{{Combined Curing and Deep Drawing of Fiber Metal Laminates to Spherical Hybrid Components}}}, year = {{2020}}, } @inproceedings{21534, author = {{Bengs, Viktor and Hüllermeier, Eyke}}, booktitle = {{International Conference on Machine Learning}}, pages = {{778--787}}, title = {{{Preselection Bandits}}}, year = {{2020}}, } @unpublished{21536, abstract = {{We consider a resource-aware variant of the classical multi-armed bandit problem: In each round, the learner selects an arm and determines a resource limit. It then observes a corresponding (random) reward, provided the (random) amount of consumed resources remains below the limit. Otherwise, the observation is censored, i.e., no reward is obtained. For this problem setting, we introduce a measure of regret, which incorporates the actual amount of allocated resources of each learning round as well as the optimality of realizable rewards. Thus, to minimize regret, the learner needs to set a resource limit and choose an arm in such a way that the chance to realize a high reward within the predefined resource limit is high, while the resource limit itself should be kept as low as possible. We derive the theoretical lower bound on the cumulative regret and propose a learning algorithm having a regret upper bound that matches the lower bound. In a simulation study, we show that our learning algorithm outperforms straightforward extensions of standard multi-armed bandit algorithms.}}, author = {{Bengs, Viktor and Hüllermeier, Eyke}}, booktitle = {{arXiv:2011.00813}}, title = {{{Multi-Armed Bandits with Censored Consumption of Resources}}}, year = {{2020}}, } @article{21539, author = {{Ortmann, Regina and Pelster, Matthias and Wengerek, Sascha Tobias}}, issn = {{1544-6123}}, journal = {{Finance Research Letters}}, title = {{{COVID-19 and investor behavior}}}, doi = {{10.1016/j.frl.2020.101717}}, year = {{2020}}, } @inproceedings{21541, abstract = {{In this publication, the near-field to far-field transformation using the self-built near-field scanner NFS3000 is examined with regard to its geometry. This device allows to measure electric and magnetic fields in small distances to the DUT (Device under Test) with high geometric precision and high sensitivity. Leading to a fast examination of EMC (Electromagnetic Compatibility) problems, because the electromagnetic properties are better understandable and therefore easier to solve than e.g. measurements in a far-field chamber. In addition, it is possible to extrapolate the near-fields into the far-field and to determine the radiation pattern of antennas and emitting objects. For this purpose, this paper deals with the basis of this transformation, the so-called surface equivalence theorem. This principle is then adapted to the measurement of near-field scanners and implemented accordingly. Due to the non-ideal design of the near-field scanner, the effects on a far-field transformation are finally presented and discussed.}}, author = {{Lange, Sven and Schroder, Dominik and Hedayat, Christian and Hangmann, Christian and Otto, Thomas and Hilleringmann, Ulrich}}, booktitle = {{2020 International Symposium on Electromagnetic Compatibility - EMC EUROPE}}, isbn = {{978-1-7281-5580-7}}, issn = {{2325-0364 }}, keywords = {{Near-Field Scanner, Near-Field to Far-Field Transformation, Directivity, Surface Equivalence Theorem, Huygens’ Box}}, location = {{Rome, Italy }}, publisher = {{IEEE}}, title = {{{Investigation of the Surface Equivalence Principle on a Metal Surface for a Near-Field to Far-Field Transformation by the NFS3000}}}, doi = {{10.1109/emceurope48519.2020.9245697}}, year = {{2020}}, } @inbook{21542, abstract = {{Using near-field (NF) scan data to predict the far-field (FF) behaviour of radiating electronic systems represents a novel method to accompany the whole RF design process. This approach involves so-called Huygens' box as an efficient radiation model inside an electromagnetic (EM) simulation tool and then transforms the scanned NF measured data into the FF. For this, the basic idea of the Huygens'box principle and the NF-to-FF transformation are briefly presented. The NF is measured on the Huygens' box around a device under test using anNF scanner, recording the magnitude and phase of the site-related magnetic and electric components. A comparison between a fullwave simulation and the measurement results shows a good similarity in both the NF and the simulated and transformed FF.Thus, this method is applicable to predict the FF behaviour of any electronic system by measuring the NF. With this knowledge, the RF design can be improved due to allowing a significant reduction of EM compatibility failure at the end of the development flow. In addition, the very efficient FF radiation model can be used for detailed investigations in various environments and the impact of such an equivalent radiation source on other electronic systems can be assessed.}}, author = {{Schröder, Dominik and Lange, Sven and Hangmann, Christian and Hedayat, Christian}}, booktitle = {{Tensorial Analysis of Networks (TAN) Modelling for PCB Signal Integrity and EMC Analysis}}, isbn = {{9781839530494}}, keywords = {{Huygens' box, NF-to-FF transformation, efficient FF radiation model, FF behaviour, EMI assessment, PCB, near-field measurements, efficient radiation model, far-field behaviour, RF design process, far-field prediction, Huygens'box principle, fullwave simulation, electronic system radiation, equivalent radiation source, electromagnetic simulation tool, near-field scan data, EM compatibility failure reduction}}, pages = {{315--346 (32)}}, publisher = {{ The Institution of Engineering and Technology (IET)}}, title = {{{Far-field prediction combining simulations with near-field measurements for EMI assessment of PCBs}}}, doi = {{10.1049/pbcs072e_ch14}}, year = {{2020}}, } @inbook{21579, author = {{Berger, Thomas and Lanza, Lukas Johannes}}, booktitle = {{Progress in Differential-Algebraic Equations II}}, isbn = {{9783030539047}}, issn = {{2199-7497}}, title = {{{Observers for Differential-Algebraic Systems with Lipschitz or Monotone Nonlinearities}}}, doi = {{10.1007/978-3-030-53905-4_9}}, year = {{2020}}, } @inproceedings{21584, author = {{Gatica, Carlos Paiz and Platzner, Marco}}, booktitle = {{Machine Learning for Cyber Physical Systems (ML4CPS 2017)}}, isbn = {{9783662590836}}, issn = {{2522-8579}}, title = {{{Adaptable Realization of Industrial Analytics Functions on Edge-Devices using Reconfigurable Architectures}}}, doi = {{10.1007/978-3-662-59084-3_9}}, year = {{2020}}, } @article{21608, author = {{Meschede, Henning}}, issn = {{0960-1481}}, journal = {{Renewable Energy}}, pages = {{1480--1491}}, title = {{{Analysis on the demand response potential in hotels with varying probabilistic influencing time-series for the Canary Islands}}}, doi = {{10.1016/j.renene.2020.06.024}}, year = {{2020}}, } @article{17331, author = {{Graf-Schlattmann, Marcel and Meister, Dorothee M. and Oevel, Gudrun and Wilde, Melanie}}, journal = {{Forschungsperspektiven auf Digitalisierung in Hochschulen, Zeitschrift für Hochschulentwicklung}}, number = {{1}}, title = {{{Kollektive Veränderungsbereitschaft als zentraler Erfolgsfaktor von Digitalisierungsprozessen an Hochschulen}}}, volume = {{15}}, year = {{2020}}, } @article{17335, author = {{Hampel, Uwe and Schubert, Markus and Döß, Alexander and Sohr, Johanna and Vishwakarma, Vineet and Repke, Jens‐Uwe and Gerke, Sören J. and Leuner, Hannes and Rädle, Matthias and Kapoustina, Viktoria and Schmitt, Lucas and Grünewald, Marcus and Brinkmann, Jost H. and Plate, Dominik and Kenig, Eugeny and Lutters, Nicole and Bolenz, Lukas and Buckmann, Felix and Toye, Dominique and Arlt, Wolfgang and Linder, Thomas and Hoffmann, Rainer and Klein, Harald and Rehfeldt, Sebastian and Winkler, Thomas and Bart, Hans‐Jörg and Wirz, Dominic and Schulz, Jonas and Scholl, Stephan and Augustin, Wolfgang and Jasch, Katharina and Schlüter, Florian and Schwerdtfeger, Natalie and Jahnke, Stefan and Jupke, Andreas and Kabatnik, Christoph and Braeuer, Andreas Siegfried and D'Auria, Mirko and Runowski, Thomas and Casal, Maria Francisco and Becker, Karsten and David, Anna‐Lena and Górak, Andrzej and Skiborowski, Mirko and Groß, Kai and Qammar, Hina}}, issn = {{0009-286X}}, journal = {{Chemie Ingenieur Technik}}, pages = {{926--948}}, title = {{{Recent Advances in Experimental Techniques for Flow and Mass Transfer Analyses in Thermal Separation Systems}}}, doi = {{10.1002/cite.202000076}}, volume = {{92}}, year = {{2020}}, } @inbook{17337, author = {{Jazayeri, Bahar and Schwichtenberg, Simon and Küster, Jochen and Zimmermann, Olaf and Engels, Gregor}}, booktitle = {{Advanced Information Systems Engineering}}, isbn = {{9783030494346}}, issn = {{0302-9743}}, title = {{{Modeling and Analyzing Architectural Diversity of Open Platforms}}}, doi = {{10.1007/978-3-030-49435-3_3}}, year = {{2020}}, } @inbook{17347, abstract = {{Peer-to-Peer news portals allow Internet users to write news articles and make them available online to interested readers. Despite the fact that authors are free in their choice of topics, there are a number of quality characteristics that an article must meet before it is published. In addition to meaningful titles, comprehensibly written texts and meaning- ful images, relevant tags are an important criteria for the quality of such news. In this case study, we discuss the challenges and common mistakes that Peer-to-Peer reporters face when tagging news and how incorrect information can be corrected through the orchestration of existing Natu- ral Language Processing services. Lastly, we use this illustrative example to give insight into the challenges of dealing with bottom-up taxonomies.}}, author = {{Bäumer, Frederik Simon and Kersting, Joschka and Buff, Bianca and Geierhos, Michaela}}, booktitle = {{Information and Software Technologies}}, editor = {{Audrius, Lopata and Rita, Butkienė and Daina, Gudonienė and Vilma, Sukackė}}, location = {{Kaunas, Litauen}}, pages = {{368----382}}, publisher = {{Springer}}, title = {{{Tag Me If You Can: Insights into the Challenges of Supporting Unrestricted P2P News Tagging}}}, doi = {{https://doi.org/10.1007/978-3-030-59506-7_30}}, volume = {{1283}}, year = {{2020}}, } @inproceedings{17348, author = {{Kucklick, Jan-Peter and Müller, Oliver}}, booktitle = {{Symposium on Statistical Challenges in Electronic Commerce Research (SCECR)}}, title = {{{Location, location, location: Satellite image-based real-estate appraisal}}}, year = {{2020}}, } @inproceedings{17349, author = {{Grabo, Matti and Staggenborg, Christoph and Kenig, Eugeny}}, location = {{Frankfurt am Main}}, title = {{{Modellierung und Optimierung makroverkapselter Latentwärmespeicherelemente für ein luftgeführtes Wärmespeichersystem}}}, year = {{2020}}, } @inbook{17352, author = {{Moritzer, Elmar and Hüttner, Matthias and Henning, Bernd and Webersen, Manuel}}, booktitle = {{Advances in Polymer Processing 2020}}, editor = {{Hopmann, Christian and Dahlmann, Rainer}}, isbn = {{9783662608081}}, location = {{Aachen}}, publisher = {{Springer}}, title = {{{The Influence of Hydrothermal Aging on the Material Properties of Continuous Fiber-Reinforced Thermoplastics and its Non-Destructive Characterization}}}, doi = {{10.1007/978-3-662-60809-8_16}}, year = {{2020}}, } @article{17358, abstract = {{Approximate circuits trade-off computational accuracy against improvements in hardware area, delay, or energy consumption. IP core vendors who wish to create such circuits need to convince consumers of the resulting approximation quality. As a solution we propose proof-carrying approximate circuits: The vendor creates an approximate IP core together with a certificate that proves the approximation quality. The proof certificate is bundled with the approximate IP core and sent off to the consumer. The consumer can formally verify the approximation quality of the IP core at a fraction of the typical computational cost for formal verification. In this paper, we first make the case for proof-carrying approximate circuits and then demonstrate the feasibility of the approach by a set of synthesis experiments using an exemplary approximation framework.}}, author = {{Witschen, Linus Matthias and Wiersema, Tobias and Platzner, Marco}}, issn = {{1557-9999}}, journal = {{IEEE Transactions On Very Large Scale Integration Systems}}, keywords = {{Approximate circuit synthesis, approximate computing, error metrics, formal verification, proof-carrying hardware}}, number = {{9}}, pages = {{2084 -- 2088}}, publisher = {{IEEE}}, title = {{{Proof-carrying Approximate Circuits}}}, doi = {{10.1109/TVLSI.2020.3008061}}, volume = {{28}}, year = {{2020}}, } @article{17359, abstract = {{In this article, we focus on the acceleration of a chemical reaction simulation that relies on a system of stiff ordinary differential equation (ODEs) targeting heterogeneous computing systems with CPUs and field-programmable gate arrays (FPGAs). Specifically, we target an essential kernel of the coupled chemistry aerosol-tracer transport model to the Brazilian developments on the regional atmospheric modeling system (CCATT-BRAMS). We focus on a linear solve step using the QR factorization based on the modified Gram-Schmidt method as the basis of the ODE solver in this application. We target Intel hardware accelerator research program (HARP) architecture with the OpenCL programming environment for these early experiments. Our design exploration reveals a hardware design that is up to 4 times faster than the original iterative Jacobi method used in this solver. Still, even with hardware support, the overall performance of our QR-based hardware is lower than its original software version.}}, author = {{Alberto Oliveira de Souza Junior, Carlos and Bispo, João and Cardoso, João M. P. and Diniz, Pedro C. and Marques, Eduardo}}, issn = {{2079-9292}}, journal = {{Electronics}}, keywords = {{pc2-harp-ressources}}, title = {{{Exploration of FPGA-Based Hardware Designs for QR Decomposition for Solving Stiff ODE Numerical Methods Using the HARP Hybrid Architecture}}}, doi = {{10.3390/electronics9050843}}, year = {{2020}}, } @article{17361, author = {{Johansson-Pajala, Rose-Marie and Thommes, Kirsten and Hoppe, Julia Amelie and Tuisku, Outi and Hennala, Lea and Pekkarinen, Satu and Melkas, Helina and Gustafsson, Christine}}, journal = {{International Journal of Social Robotics}}, pages = {{1--15}}, title = {{{Care Robot Orientation: What, Who and How? Potential Users` Perceptions}}}, doi = {{10.1007/s12369-020-00619-y}}, year = {{2020}}, } @article{17366, author = {{Hoppe, Julia Amelie and Johansson-Pajala, Rose-Marie and Gustafsson, Christine and Melkas, Helinä and Tusku, Outi and Pekkarinen, Satu and Hennala, Lea}}, issn = {{2364-9208}}, journal = {{Industrie 4.0 Management}}, title = {{{Technologieorientierung zu Assistenzrobotik – Welche Akzeptanz besteht bei der Einführung von Assistenzrobotik für die Pflege älterer Menschen?}}}, volume = {{2}}, year = {{2020}}, } @inbook{17367, author = {{Hoppe, Julia Amelie and Johansson-Pajala, Rose-Marie and Gustafsson, Christine and Melkas, Helinä and Tusku, Outi and Pekkarinen, Satu and Hennala, Lea and Thommes, Kirsten}}, booktitle = {{Aging between Participation and Simulation - Ethical Dimensions of Socially Assistive Technologies in elderly care }}, editor = {{Haltaufderheide, Joschka and Hovemann, Johanna and Vollmann, Jochen}}, pages = {{139--156}}, publisher = {{De Gruyter}}, title = {{{Assistive robots in care: Expectations and perceptions of older people}}}, doi = {{10.1515/9783110677485-009}}, year = {{2020}}, } @inproceedings{17368, author = {{Vorbohle, Christian and Szopinski, Daniel and Kundisch, Dennis}}, editor = {{Shishkov, B.}}, isbn = {{978-3-030-52305-3}}, location = {{Potsdam, Germany}}, publisher = {{Springer}}, title = {{{Business Model Dependencies: Towards conceptualizing dependencies for extending modeling languages for business models}}}, volume = {{391}}, year = {{2020}}, } @article{17369, author = {{Ho, Nam and Kaufmann, Paul and Platzner, Marco}}, journal = {{International Journal of Hybrid intelligent Systems}}, publisher = {{IOS Press}}, title = {{{Evolution of Application-Specific Cache Mappings}}}, year = {{2020}}, } @inproceedings{17370, abstract = {{ We consider a natural extension to the metric uncapacitated Facility Location Problem (FLP) in which requests ask for different commodities out of a finite set \( S \) of commodities. Ravi and Sinha (SODA 2004) introduced the model as the \emph{Multi-Commodity Facility Location Problem} (MFLP) and considered it an offline optimization problem. The model itself is similar to the FLP: i.e., requests are located at points of a finite metric space and the task of an algorithm is to construct facilities and assign requests to facilities while minimizing the construction cost and the sum over all assignment distances. In addition, requests and facilities are heterogeneous; they request or offer multiple commodities out of $S$. A request has to be connected to a set of facilities jointly offering the commodities demanded by it. In comparison to the FLP, an algorithm has to decide not only if and where to place facilities, but also which commodities to offer at each. To the best of our knowledge we are the first to study the problem in its online variant in which requests, their positions and their commodities are not known beforehand but revealed over time. We present results regarding the competitive ratio. On the one hand, we show that heterogeneity influences the competitive ratio by developing a lower bound on the competitive ratio for any randomized online algorithm of \( \Omega ( \sqrt{|S|} + \frac{\log n}{\log \log n} ) \) that already holds for simple line metrics. Here, \( n \) is the number of requests. On the other side, we establish a deterministic \( \mathcal{O}(\sqrt{|S|} \cdot \log n) \)-competitive algorithm and a randomized \( \mathcal{O}(\sqrt{|S|} \cdot \frac{\log n}{\log \log n} ) \)-competitive algorithm. Further, we show that when considering a more special class of cost functions for the construction cost of a facility, the competitive ratio decreases given by our deterministic algorithm depending on the function.}}, author = {{Castenow, Jannik and Feldkord, Björn and Knollmann, Till and Malatyali, Manuel and Meyer auf der Heide, Friedhelm}}, booktitle = {{Proceedings of the 32nd ACM Symposium on Parallelism in Algorithms and Architectures}}, isbn = {{9781450369350}}, keywords = {{Online Multi-Commodity Facility Location, Competitive Ratio, Online Optimization, Facility Location Problem}}, title = {{{The Online Multi-Commodity Facility Location Problem}}}, doi = {{10.1145/3350755.3400281}}, year = {{2020}}, } @inproceedings{17371, author = {{Castenow, Jannik and Kling, Peter and Knollmann, Till and Meyer auf der Heide, Friedhelm}}, booktitle = {{Proceedings of the 32nd ACM Symposium on Parallelism in Algorithms and Architectures}}, isbn = {{9781450369350}}, title = {{{Brief Announcement: A Discrete and Continuous Study of the Max-Chain-Formation Problem: Slow Down to Speed up}}}, doi = {{10.1145/3350755.3400263}}, year = {{2020}}, } @article{17375, author = {{Zhou, Jiaqi and Khazaei, Mohammad and Ranjbar, Ahmad and Wang, Vei and Kühne, Thomas D. and Ohno, Kaoru and Kawazoe, Yoshiyuki and Liang, Yunye}}, journal = {{J. Mater. Chem. C}}, pages = {{5211--5221}}, publisher = {{The Royal Society of Chemistry}}, title = {{{Modulation of nearly free electron states in hydroxyl-functionalized MXenes: a first-principles study}}}, doi = {{10.1039/C9TC06837F}}, volume = {{8}}, year = {{2020}}, } @article{17379, author = {{Kumar Sahoo, Sudhir and Heske, Julian Joachim and Azadi, Sam and Zhang, Zhenzhe and V Tarakina, Nadezda and Oschatz, Martin and Z. Khaliullin, Rustam and Antonietti, Markus and Kühne, Thomas}}, journal = {{Scientific Reports}}, number = {{1}}, title = {{{On the Possibility of Helium Adsorption in Nitrogen Doped Graphitic Materials}}}, doi = {{10.1038/s41598-020-62638-z}}, volume = {{10}}, year = {{2020}}, } @article{17381, author = {{Elgabarty, Hossam and Kampfrath, Tobias and Bonthuis, Douwe Jan and Balos, Vasileios and Kaliannan, Naveen Kumar and Loche, Philip and Netz, Roland R. and Wolf, Martin and K{\, Thomas D. and Sajadi, Mohsen}}, journal = {{Science Advances}}, number = {{17}}, publisher = {{American Association for the Advancement of Science}}, title = {{{Energy transfer within the hydrogen bonding network of water following resonant terahertz excitation}}}, doi = {{10.1126/sciadv.aay7074}}, volume = {{6}}, year = {{2020}}, } @article{17382, author = {{Rengaraj, Varadarajan and Lass, Michael and Plessl, Christian and Kühne, Thomas D.}}, issn = {{2079-3197}}, journal = {{Computation}}, number = {{2}}, pages = {{39}}, publisher = {{MDPI AG}}, title = {{{Accurate Sampling with Noisy Forces from Approximate Computing}}}, doi = {{10.3390/computation8020039}}, volume = {{8}}, year = {{2020}}, } @article{17384, author = {{Elgabarty, Hossam and Kühne, Thomas D.}}, journal = {{Phys. Chem. Chem. Phys.}}, pages = {{10397--10411}}, publisher = {{The Royal Society of Chemistry}}, title = {{{Tumbling with a limp: local asymmetry in water's hydrogen bond network and its consequences}}}, doi = {{10.1039/C9CP06960G}}, volume = {{22}}, year = {{2020}}, } @article{17386, author = {{Kühne, Thomas D. and Iannuzzi, Marcella and Del Ben, Mauro and Rybkin, Vladimir V. and Seewald, Patrick and Stein, Frederick and Laino, Teodoro and Khaliullin, Rustam Z. and Schütt, Ole and Schiffmann, Florian and al., et}}, issn = {{1089-7690}}, journal = {{The Journal of Chemical Physics}}, number = {{19}}, pages = {{194103}}, publisher = {{AIP Publishing}}, title = {{{CP2K: An electronic structure and molecular dynamics software package - Quickstep: Efficient and accurate electronic structure calculations}}}, doi = {{10.1063/5.0007045}}, volume = {{152}}, year = {{2020}}, } @article{17390, author = {{Chantakit, Teanchai and Schlickriede, Christian and Sain, Basudeb and Meyer, Fabian and Weiss, Thomas and Chattham, Nattaporn and Zentgraf, Thomas}}, issn = {{2327-9125}}, journal = {{Photonics Research}}, number = {{9}}, pages = {{1435--1440}}, publisher = {{OSA}}, title = {{{All-dielectric silicon metalens for two-dimensional particle manipulation in optical tweezers}}}, doi = {{10.1364/prj.389200}}, volume = {{8}}, year = {{2020}}, } @inproceedings{17398, author = {{Turcanu, Ion and Engel, Thomas and Sommer, Christoph}}, booktitle = {{2019 IEEE Vehicular Networking Conference (VNC)}}, isbn = {{9781728145716}}, title = {{{Fog Seeding Strategies for Information-Centric Heterogeneous Vehicular Networks}}}, doi = {{10.1109/vnc48660.2019.9062816}}, year = {{2020}}, } @inproceedings{17405, author = {{Frank, Maximilian and Gausemeier, Juergen and Hennig-Cardinal von Widdern, Nils and Koldewey, Christian and Menzefricke, Joern Steffen and Reinhold, Jannik}}, booktitle = {{Proceedings of the ISPIM connects}}, publisher = {{International Society for Professional Innovation Management (ISPIM)}}, title = {{{A reference process for the Smart Service business: development and practical implications}}}, year = {{2020}}, } @inproceedings{17406, author = {{Becker, Julia-Kristin and Joachim, Klemens and Koldewey, Christian and Reinhold, Jannik and Dumitrescu, Roman}}, booktitle = {{Proceedings of the 2020 ISPIM Innovation Conference (Virtual) Event "Innovating in Times of Crisis"}}, publisher = {{ISPIM Innovation Conference}}, title = {{{Scaling Digital Business Models: A Case from the Automotive Industry}}}, year = {{2020}}, } @inproceedings{17407, author = {{Tornede, Alexander and Wever, Marcel Dominik and Hüllermeier, Eyke}}, booktitle = {{Discovery Science}}, title = {{{Extreme Algorithm Selection with Dyadic Feature Representation}}}, year = {{2020}}, } @inproceedings{17408, author = {{Hanselle, Jonas Manuel and Tornede, Alexander and Wever, Marcel Dominik and Hüllermeier, Eyke}}, booktitle = {{KI 2020: Advances in Artificial Intelligence}}, title = {{{Hybrid Ranking and Regression for Algorithm Selection}}}, year = {{2020}}, } @inbook{17411, abstract = {{Many dynamical systems possess symmetries, e.g. rotational and translational invariances of mechanical systems. These can be beneficially exploited in the design of numerical optimal control methods. We present a model predictive control scheme which is based on a library of precomputed motion primitives. The primitives are equivalence classes w.r.t. the symmetry of the optimal control problems. Trim primitives as relative equilibria w.r.t. this symmetry, play a crucial role in the algorithm. The approach is illustrated using an academic mobile robot example.}}, author = {{Flaßkamp, Kathrin and Ober-Blöbaum, Sina and Peitz, Sebastian}}, booktitle = {{Advances in Dynamics, Optimization and Computation}}, editor = {{Junge, Oliver and Schütze, Oliver and Froyland, Gary and Ober-Blöbaum, Sina and Padberg-Gehle, Kathrin}}, isbn = {{9783030512637}}, issn = {{2198-4182}}, publisher = {{Springer}}, title = {{{Symmetry in Optimal Control: A Multiobjective Model Predictive Control Approach}}}, doi = {{10.1007/978-3-030-51264-4_9}}, year = {{2020}}, } @inproceedings{17424, author = {{Tornede, Tanja and Tornede, Alexander and Wever, Marcel Dominik and Mohr, Felix and Hüllermeier, Eyke}}, booktitle = {{Proceedings of the ECMLPKDD 2020}}, title = {{{AutoML for Predictive Maintenance: One Tool to RUL Them All}}}, doi = {{10.1007/978-3-030-66770-2_8}}, year = {{2020}}, } @article{17426, abstract = {{The development of renewable energies and smart mobility has profoundly impacted the future of the distribution grid. An increasing bidirectional energy flow stresses the assets of the distribution grid, especially medium voltage switchgear. This calls for improved maintenance strategies to prevent critical failures. Predictive maintenance, a maintenance strategy relying on current condition data of assets, serves as a guideline. Novel sensors covering thermal, mechanical, and partial discharge aspects of switchgear, enable continuous condition monitoring of some of the most critical assets of the distribution grid. Combined with machine learning algorithms, the demands put on the distribution grid by the energy and mobility revolutions can be handled. In this paper, we review the current state-of-the-art of all aspects of condition monitoring for medium voltage switchgear. Furthermore, we present an approach to develop a predictive maintenance system based on novel sensors and machine learning. We show how the existing medium voltage grid infrastructure can adapt these new needs on an economic scale.}}, author = {{Hoffmann, Martin W. and Wildermuth, Stephan and Gitzel, Ralf and Boyaci, Aydin and Gebhardt, Jörg and Kaul, Holger and Amihai, Ido and Forg, Bodo and Suriyah, Michael and Leibfried, Thomas and Stich, Volker and Hicking, Jan and Bremer, Martin and Kaminski, Lars and Beverungen, Daniel and zur Heiden, Philipp and Tornede, Tanja}}, issn = {{1424-8220}}, journal = {{Sensors}}, title = {{{Integration of Novel Sensors and Machine Learning for Predictive Maintenance in Medium Voltage Switchgear to Enable the Energy and Mobility Revolutions}}}, doi = {{10.3390/s20072099}}, year = {{2020}}, } @article{17433, author = {{Wang, D. Q. and Reuter, Dirk and Wieck, A. D. and Hamilton, A. R. and Klochan, O.}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, title = {{{Two-dimensional lateral surface superlattices in GaAs heterostructures with independent control of carrier density and modulation potential}}}, doi = {{10.1063/5.0009462}}, year = {{2020}}, } @article{17434, author = {{Kunnathully, Vinay S. and Riedl, Thomas and Trapp, Alexander and Langer, Timo and Reuter, Dirk and Lindner, Jörg K.N.}}, issn = {{0022-0248}}, journal = {{Journal of Crystal Growth}}, title = {{{InAs heteroepitaxy on nanopillar-patterned GaAs (111)A}}}, doi = {{10.1016/j.jcrysgro.2020.125597}}, year = {{2020}}, } @article{17435, author = {{Geier, M. and Freudenfeld, J. and Silva, J. T. and Umansky, V. and Reuter, Dirk and Wieck, A. D. and Brouwer, P. W. and Ludwig, S.}}, issn = {{2469-9950}}, journal = {{Physical Review B}}, title = {{{Electrostatic potential shape of gate-defined quantum point contacts}}}, doi = {{10.1103/physrevb.101.165429}}, year = {{2020}}, } @article{17436, abstract = {{The study of electron transport in low-dimensional systems is of importance, not only from a fundamental point of view, but also for future electronic and spintronic devices. In this context heterostructures containing a two-dimensional electron gas (2DEG) are a key technology. In particular GaAs/AlGaAs heterostructures, with a 2DEG at typically 100 nm below the surface, are widely studied. In order to explore electron transport in such systems, low-resistance ohmic contacts are required that connect the 2DEG to macroscopic measurement leads at the surface. Here we report on designing and measuring a dedicated device for unraveling the various resistance contributions in such contacts, which include pristine 2DEG series resistance, the 2DEG resistance under a contact, the contact resistance itself, and the influence of pressing a bonding wire onto a contact. We also report here a recipe for contacts with very low resistance values that remain below 10 Ω for annealing times between 20 and 350 s, hence providing the flexibility to use this method for materials with different 2DEG depths. The type of heating, temperature ramp rate and gas forming used for annealing is found to strongly influence the annealing process and hence the quality of the resulting contacts.}}, author = {{Javaid Iqbal, Muhammad and Reuter, Dirk and Wieck, Andreas Dirk and van der Wal, Caspar}}, issn = {{1286-0042}}, journal = {{The European Physical Journal Applied Physics}}, title = {{{Characterization of low-resistance ohmic contacts to a two-dimensional electron gas in a GaAs/AlGaAs heterostructure}}}, doi = {{10.1051/epjap/2020190202}}, year = {{2020}}, } @article{17437, author = {{Ebler, C. and Labud, P. A. and Rai, A. K. and Reuter, Dirk and Wieck, A. D. and Ludwig, A.}}, issn = {{2469-9950}}, journal = {{Physical Review B}}, title = {{{Electrical detection of excitonic states by time-resolved conductance measurements}}}, doi = {{10.1103/physrevb.101.125303}}, year = {{2020}}, } @article{17523, abstract = {{Compact and robust cold atom sources are increasingly important for quantum research, especially for transferring cutting-edge quantum science into practical applications. In this study, we report on a novel scheme that uses a metasurface optical chip to replace the conventional bulky optical elements used to produce a cold atomic ensemble with a single incident laser beam, which is split by the metasurface into multiple beams of the desired polarization states. Atom numbers ~107 and temperatures (about 35 μK) of relevance to quantum sensing are achieved in a compact and robust fashion. Our work highlights the substantial progress toward fully integrated cold atom quantum devices by exploiting metasurface optical chips, which may have great potential in quantum sensing, quantum computing, and other areas.}}, author = {{Zhu, Lingxiao and Liu, Xuan and Sain, Basudeb and Wang, Mengyao and Schlickriede, Christian and Tang, Yutao and Deng, Junhong and Li, Kingfai and Yang, Jun and Holynski, Michael and Zhang, Shuang and Zentgraf, Thomas and Bongs, Kai and Lien, Yu-Hung and Li, Guixin}}, issn = {{2375-2548}}, journal = {{Science Advances}}, number = {{31}}, publisher = {{American Association for the Advancement of Science}}, title = {{{A dielectric metasurface optical chip for the generation of cold atoms}}}, doi = {{10.1126/sciadv.abb6667}}, volume = {{6}}, year = {{2020}}, } @article{17578, author = {{Schweizer, Swetlana and Becker-Staines, Anna and Tröster, Thomas}}, issn = {{0956-053X}}, journal = {{Waste Management}}, pages = {{74--82}}, title = {{{Separation and reclamation of automotive hybrid structures made of metal and fibre-reinforced plastic}}}, doi = {{10.1016/j.wasman.2020.04.042}}, year = {{2020}}, } @article{17589, author = {{Sonnenrein, G. and Baumhögger, Elmar and Elsner, A. and Morbach, A. and Neukötter, M. and Paul, A. and Vrabec, J.}}, issn = {{0140-7007}}, journal = {{International Journal of Refrigeration}}, title = {{{Improving the performance of household refrigerating appliances through the integration of phase change materials in the context of the new global refrigerator standard IEC 62552:2015}}}, doi = {{10.1016/j.ijrefrig.2020.07.025}}, year = {{2020}}, } @unpublished{17605, abstract = {{Syntactic annotation of corpora in the form of part-of-speech (POS) tags is a key requirement for both linguistic research and subsequent automated natural language processing (NLP) tasks. This problem is commonly tackled using machine learning methods, i.e., by training a POS tagger on a sufficiently large corpus of labeled data. While the problem of POS tagging can essentially be considered as solved for modern languages, historical corpora turn out to be much more difficult, especially due to the lack of native speakers and sparsity of training data. Moreover, most texts have no sentences as we know them today, nor a common orthography. These irregularities render the task of automated POS tagging more difficult and error-prone. Under these circumstances, instead of forcing the POS tagger to predict and commit to a single tag, it should be enabled to express its uncertainty. In this paper, we consider POS tagging within the framework of set-valued prediction, which allows the POS tagger to express its uncertainty via predicting a set of candidate POS tags instead of guessing a single one. The goal is to guarantee a high confidence that the correct POS tag is included while keeping the number of candidates small. In our experimental study, we find that extending state-of-the-art POS taggers to set-valued prediction yields more precise and robust taggings, especially for unknown words, i.e., words not occurring in the training data.}}, author = {{Heid, Stefan Helmut and Wever, Marcel Dominik and Hüllermeier, Eyke}}, booktitle = {{Journal of Data Mining and Digital Humanities}}, publisher = {{episciences}}, title = {{{Reliable Part-of-Speech Tagging of Historical Corpora through Set-Valued Prediction}}}, year = {{2020}}, } @techreport{17703, abstract = {{Employing a unique sample of 2,849 tariff imposition announcements by and against the United States (U.S.) over the period from 2018 to 2019, this study analyzes the impact of recent tariff announcements on share prices from 859 U.S. companies. We provide evidence for negative (cumulative) average abnormal stock returns due to tariff announcements during a symmetric three-day event window. We suggest that stock market investors expect adverse impacts of tariff impositions, e.g. a decrease in the companies' future cash flows and a threat of retaliation. The negative wealth effects are observed irrespective of whether the Trump administration announces safeguard tariffs to protect domestic firms or a retaliation is declared by foreign countries. Moreover, building several subsamples, we find that the adverse impact is mostly driven by announcements involving China and is associated with a variety of sector, tariff, trade and firm characteristics.}}, author = {{Wengerek, Sascha Tobias}}, keywords = {{event study, international relations, protectionism, strategic trade policy, tariffs, trade conflict}}, pages = {{63}}, title = {{{Share price reactions to tariff imposition announcements in the Trump era - An event study of the trade conflict}}}, year = {{2020}}, } @article{17730, author = {{Ortmann, Regina and Pelster, Matthias and Wengerek, Sascha Tobias}}, issn = {{1544-6123}}, journal = {{Finance Research Letters}}, title = {{{COVID-19 and investor behavior}}}, doi = {{10.1016/j.frl.2020.101717}}, volume = {{37}}, year = {{2020}}, }