TY - GEN AU - Eickelmann, Birgit ID - 28855 TI - Nachhaltiger Digitalisierungsschub im Schulbereich und in der Lehrkräftebildung durch die Pandemie? – Schön wär’s ER - TY - JOUR AU - Eickelmann, Birgit ID - 28856 IS - 7 JF - BildungsImpulseRuhr TI - Strukturelle Rahmenbedingung der Digitalisierung im Schulbereich in NRW – neue Forschungsbefunde und mögliche Perspektiven für nachhaltig wirksame Entwicklungen ER - TY - CHAP AU - Gerick, Julia AU - Eickelmann, Birgit ED - Rothland, Martin ED - Herrlinger, Simone ID - 28858 T2 - Beiträge zur Lehrerbildung und Bildungsforschung. Digital?! Perspektiven der Digitalisierung für den Lehrerberuf und die Lehrerbildung TI - Lehrerbildung und Digitalisierung. Ein empirischer Blick auf der Grundlage der Studie ICILS 2018 VL - 6 ER - TY - CHAP AU - Eickelmann, Birgit AU - Drossel, Kerstin ED - Tatnall, Arthur ID - 28859 SN - 9783030105754 T2 - Encyclopedia of Education and Information Technologies TI - Students’ computer literacy and the use of tablets in upper secondary schools ER - TY - CONF AU - Labusch, Amelie AU - Eickelmann, Birgit ED - Kong, Siu Cheung ED - Hoppe, Heinz Ulrich ED - Hsu, Ting-chia ED - Huang, Rong-Huai ED - Kuo, Bor-Chen ED - Li, Robert Kwok-Yiu ED - Looi, Chee-kit ED - Milard, Marcelo ED - Shih, Ju-Ling ED - Sin, Kuen Fung ED - Song, Ki-sang ED - Specht, Marcus ED - Sullivan, Florence ED - Vahrenhold, Jan ID - 28860 T2 - Proceedings of International Conference on Computational Thinking Education 2020 TI - Computational thinking competences in countries from three different continents in the mirror of students' characteristics and school learning ER - TY - JOUR AU - Gerick, Julia AU - Eickelmann, Birgit AU - Steglich, Emilie ID - 28865 IS - 4 JF - Fachzeitschrift für Schul- und Unterrichtsentwicklung TI - Modellschulen ‚Lernen mit digitalen Medien‘ in der Pandemie-Zeit – Gestaltungsansätze und Lessons Learnt VL - 51 ER - TY - CHAP AU - Labusch, Amelie AU - Vennemann, Mario AU - Eickelmann, Birgit ED - Eickelmann, Birgit ED - Labusch, Amelie ED - Drossel, Kerstin ED - Vennemann, Mario ID - 28866 T2 - ICILS 2018 #NRW. Vertiefende Analysen und Befunde für Nordrhein-Westfalen im internationalen Vergleich TI - Sozial- und migrationsbedingte Disparitäten im Bereich ‚Computational Thinking‘ von Schülerinnen und Schülern ER - TY - CHAP AU - Labusch, Amelie AU - Eickelmann, Birgit AU - Vahrenhold, Jan AU - Vennemann, Mario ED - Eickelmann, Birgit ED - Labusch, Amelie ED - Drossel, Kerstin ED - Vennemann, Mario ID - 28871 T2 - ICILS 2018 #NRW. Vertiefende Analysen und Befunde für Nordrhein-Westfalen im internationalen Vergleich TI - Kompetenzen im Bereich ‚Computational Thinking‘ von Schülerinnen und Schülern im internationalen Vergleich ER - TY - CHAP AU - Vennemann, Mario AU - Labusch, Amelie AU - Eickelmann, Birgit ED - Eickelmann, Birgit ED - Labusch, Amelie ED - Drossel, Kerstin ED - Vennemann, Mario ID - 28873 T2 - ICILS 2018 #NRW. Vertiefende Analysen und Befunde für Nordrhein-Westfalen im internationalen Vergleich TI - Die Nutzung digitaler Medien aus der Perspektive der Schülerinnen und Schüler ER - TY - CHAP AU - Vahrenhold, Jan AU - Vennemann, Mario AU - Labusch, Amelie AU - Eickelmann, Birgit ED - Eickelmann, Birgit ED - Labusch, Amelie ED - Drossel, Kerstin ED - Vennemann, Mario ID - 28875 T2 - ICILS 2018 #NRW. Vertiefende Analysen und Befunde für Nordrhein-Westfalen im internationalen Vergleich TI - Der Informatikunterricht aus Sicht schulischer Akteurinnen und Akteure – Analysen und Perspektiven ER - TY - CHAP AU - Eickelmann, Birgit AU - Heldt, Melanie AU - Port, Sonja ED - Eickelmann, Birgit ED - Labusch, Amelie ED - Drossel, Kerstin ED - Vennemann, Mario ID - 28877 T2 - ICILS 2018 #NRW. Vertiefende Analysen und Befunde für Nordrhein-Westfalen im internationalen Vergleich TI - Rolle des schulischen Ganztags für das Lernen mit digitalen Medien ER - TY - CHAP AU - Heldt, Melanie AU - Labusch, Amelie AU - Eickelmann, Birgit AU - Port, Sonja ED - Eickelmann, Birgit ED - Labusch, Amelie ED - Drossel, Kerstin ED - Vennemann, Mario ID - 28878 T2 - ICILS 2018 #NRW. Vertiefende Analysen und Befunde für Nordrhein-Westfalen im internationalen Vergleich TI - Konzeptionelle Verankerung digitaler Medien in schulisches Lernen und Lehren ER - TY - JOUR AU - Gerick, Julia AU - Eickelmann, Birgit AU - Steglich, Emilie ID - 28881 IS - 4 JF - SchulManagement. Fachzeitschrift für Schul- und Unterrichtsentwicklung TI - Modellschulen ‚Lernen mit digitalen Medien‘ in der Pandemie-Zeit – Gestaltungsansätze und Lessons Learnt VL - 51 ER - TY - JOUR AU - Eickelmann, Birgit ID - 28886 IS - 5 JF - SchulManagement. Fachzeitschrift für Schul- und Unterrichtsentwicklung TI - Schulleitung und Digitalisierung. Fünf Thesen VL - 51 ER - TY - DATA AU - Gerick, Julia AU - Eickelmann, Birgit AU - Steglich, Emilie ID - 28888 TI - 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 ER - TY - DATA AU - Gerick, Julia AU - Eickelmann, Birgit ID - 28896 TI - 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 ER - TY - DATA AU - Gerick, Julia AU - Eickelmann, Birgit ID - 28899 TI - 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 ER - TY - JOUR AU - Eickelmann, Birgit ID - 28902 JF - Fachmagazin für Schule in der digitalen Welt TI - Re-Definition der digitalisierungsbezogenen Schulleitungsfunktionen in der Pandemie-Zeit. Plan BD #02 Leadership ER - TY - JOUR AU - Gerick, Julia AU - Eickelmann, Birgit AU - Vennemann, Mario ID - 28907 IS - 4 JF - Journal für Schulentwicklung TI - Digitalisierungsbezogene Professionalisierung von Lehrpersonen. Befunde zu Aktivitäten, Gelegenheiten und schulischen Prioritäten aus ICILS 2013 und ICILS 2018 im Vergleich VL - 24 ER - TY - GEN ED - Eickelmann, Birgit ED - Kummer Wyss, Annemarie ID - 28910 IS - 4 T2 - Journal für Schulentwicklung TI - Fortbildung im digitalen Zeitalter VL - 24 ER - TY - JOUR AU - Engels, Gregor ID - 29045 JF - Gruppe. Interaktion. Organisation. Zeitschrift für Angewandte Organisationspsychologie (GIO) SN - 2366-6145 TI - Der digitale Fußabdruck, Schatten oder Zwilling von Maschinen und Menschen ER - TY - JOUR AU - Eke, Norbert ID - 29161 JF - www.literaturkommission.lwl.org/media/filer_public/cb/ad/cbad76c2-23ac-4cb1-ade3-883dcbd1bbf0/broschure_roes_210x210.pdf TI - Annette-von-Droste-Hülshoff-Preis 2020 Michael Roes im Gespräch mit LWL-Direktor Matthias Löb und Prof. Dr. Norbert Otto Eke, ER - TY - GEN AU - Eke, Norbert ID - 29166 IS - 61 T2 - Literaturwissenschaftliches Jahrbuch TI - [zu:] Cristina Rossi: Sinn und Struktur. Zugänge zu den Collagen Herta Müllers. Würzburg: Königshausen & Neumann, 2019 ER - TY - JOUR AB - 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. AU - Rienks, Johanna AU - Penczynski, Katharina J. AU - Schmitting, Sarah AU - Buyken, Anette AU - Nöthlings, Ute ID - 27013 JF - British Journal of Nutrition SN - 0007-1145 TI - 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 ER - TY - JOUR AB - 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. AU - Milos, Gabriella AU - Antel, Jochen AU - Kaufmann, Lisa-Katrin AU - Barth, Nikolaus AU - Koller, Antonia AU - Tan, Susanne AU - Wiesing, Urban AU - Hinney, Anke AU - Libuda, Lars AU - Wabitsch, Martin AU - von Känel, Roland AU - Hebebrand, Johannes ID - 27019 JF - Translational Psychiatry SN - 2158-3188 TI - Short-term metreleptin treatment of patients with anorexia nervosa: rapid on-set of beneficial cognitive, emotional, and behavioral effects ER - TY - JOUR AU - Peters, Triinu AU - Nüllig, Lena AU - Antel, Jochen AU - Naaresh, Roaa AU - Laabs, Björn-Hergen AU - Tegeler, Lisa AU - Amhaouach, Chaima AU - Libuda, Lars AU - Hinney, Anke AU - Hebebrand, Johannes ID - 27020 JF - Frontiers in Genetics SN - 1664-8021 TI - The Role of Genetic Variation of BMI, Body Composition, and Fat Distribution for Mental Traits and Disorders: A Look-Up and Mendelian Randomization Study ER - TY - CONF AU - Augustine, John AU - Hinnenthal, Kristian AU - Kuhn, Fabian AU - Scheideler, Christian AU - Schneider, Philipp ED - Chawla, Shuchi ID - 27051 T2 - Proceedings of the 2020 ACM-SIAM Symposium on Discrete Algorithms, SODA 2020, Salt Lake City, UT, USA, January 5-8, 2020 TI - Shortest Paths in a Hybrid Network Model ER - TY - JOUR AB - 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. AU - Koldewey, Christian AU - Frank, Maximilian AU - Gausemeier, Jürgen AU - Bäsecke, Alexander AU - Chohan, Nadia AU - Reinhold, Jannik ID - 27091 JF - ZWF, Zeitschrift für wirtschaftliche Fabrikplanung 115(7-8) TI - Systematische Entwicklung von Normstrategien für Smart Services ER - TY - CONF AU - Gausemeier, Jürgen AU - Eckelt, Daniel AU - Dülme, Christian ED - Maier, Günter ED - Engels, Gregor ED - Steffen, Eckhard ID - 27092 T2 - Handbuch Gestaltung digitaler und vernetzter Arbeitswelten TI - Strategische Planung ER - TY - JOUR AU - Koldewey, Christian AU - Meyer, Maurice AU - Stockbruegger, Patrick AU - Dumitrescu, Roman AU - Gausemeier, Jürgen ID - 27096 JF - Procedia CIRP (91) TI - Framework and Functionality Patterns for Smart Service Innovation ER - TY - CONF AU - Pierenkemper, Christoph AU - Gausemeier, Jürgen ID - 27097 T2 - Proceeding of the ISPIM Connects, 1. - 4. Mrz. 2020 TI - Developing Strategies for Digital Transformation in SMEs with Maturity Models ER - TY - JOUR AU - Drewel, Marvin AU - Özcan, Leon AU - Koldewey, Christian AU - Gausemeier, Jürgen ID - 27098 JF - Creativity and Innovation Management TI - Pattern‐based development of digital platforms ER - TY - JOUR AU - Poddubnyi, Vladimir I. AU - Trächtler, Ansgar AU - Warkentin, Andreas AU - Henke, Christian ID - 27130 JF - Vestnik Mashinostroeniya TI - Mechanical and mathematical model of a caterpillar drive with a triangular contour for solving problems of vertical dynamics of a tracked vehicle ER - TY - CONF AU - Rettinghaus, Klaus AU - Röwenstrunk, Daniel AU - Kepper, Johannes ID - 27477 TI - Integrating Score Rendition in the MEI Garage ER - TY - THES AU - Hüttner , Matthias ID - 27642 TI - Einfluss umgebungsbedingter Alterung auf das Werkstoffverhalten unverstärkter, kurzfaserverstärkter und gewebeverstärkter Thermoplaste ER - TY - THES AU - Heiderich, Gilmar ID - 27643 TI - Modellbasierte Beschreibung und Validierung der Glasfaserverkürzung im Spritzgießplastifizieraggregat mittels analytischer und und diskreter Ansätze ER - TY - THES AU - Bayazian, Hoda ID - 27644 TI - Evaluation of LLDPE and PLA Films Manufactured with High Speed ER - TY - THES AU - Sporkmann, Frederik ID - 27645 TI - Modellierung der Materialströmung auf gleichläufigen Doppelschneckenextrudern mit Hilfe der Performance Mapping Methode ER - TY - THES AU - Resonnek, Verena ID - 27646 TI - Entwicklung einer Zylindertemperatureinstellungsregelung auf Basis von Fuzzy-Logik ER - TY - CHAP AU - Homt, Martina AU - Bloh, Bea AU - Grosser, Christine ED - Basten, M. ED - Mertens, C. ED - Schöning, A. ED - Wolf, E. ID - 27721 T2 - Forschendes Lernen in der Lehrer/innenbildung. Implikationen für Wissenschaft und Praxis TI - Die Einstellung angehender Lehrkräfte zu Forschendem Lernen im Praxissemester und Referendariat ER - TY - JOUR AU - Kupriyanova, Yuliya AU - Zaharia, Oana Patricia AU - Bobrov, Pavel AU - Karusheva, Yanislava AU - Burkart, Volker AU - Szendroedi, Julia AU - Hwang, Jong-Hee AU - Roden, Michael AU - Roden, M. AU - Al-Hasani, H. AU - Burkart, V. AU - Buyken, Anette AU - Geerling, G. AU - Hwang, J.H. AU - Herder, C. AU - Icks, A. AU - Jandeleit-Dahm, K. AU - Kahl, S. AU - Kotzka, J. AU - Kuss, O. AU - Lammert, E. AU - Trenkamp, S. AU - Rathmann, W. AU - Szendroedi, J. AU - Ziegler, D. ID - 27795 JF - Journal of Hepatology SN - 0168-8278 TI - Early changes in hepatic energy metabolism and lipid content in recent-onset type 1 and 2 diabetes mellitus ER - TY - JOUR AB - 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. AU - Della Corte, Karen AU - Fife, Jessica AU - Gardner, Alexis AU - Murphy, Britta L AU - Kleis, Linda AU - Della Corte, Dennis AU - Schwingshackl, Lukas AU - LeCheminant, James D AU - Buyken, Anette ID - 27797 JF - Nutrition Reviews SN - 0029-6643 TI - World trends in sugar-sweetened beverage and dietary sugar intakes in children and adolescents: a systematic review ER - TY - JOUR AB - 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. AU - Augustin, Livia S. A. AU - Aas, Anne-Marie AU - Astrup, Arnie AU - Atkinson, Fiona S. AU - Baer-Sinnott, Sara AU - Barclay, Alan W. AU - Brand-Miller, Jennie C. AU - Brighenti, Furio AU - Bullo, Monica AU - Buyken, Anette AU - Ceriello, Antonio AU - Ellis, Peter R. AU - Ha, Marie-Ann AU - Henry, Jeyakumar C. AU - Kendall, Cyril W. C. AU - La Vecchia, Carlo AU - Liu, Simin AU - Livesey, Geoffrey AU - Poli, Andrea AU - Salas-Salvadó, Jordi AU - Riccardi, Gabriele AU - Riserus, Ulf AU - Rizkalla, Salwa W. AU - Sievenpiper, John L. AU - Trichopoulou, Antonia AU - Usic, Kathy AU - Wolever, Thomas M. S. AU - Willett, Walter C. AU - Jenkins, David J. A. ID - 27799 JF - Nutrients SN - 2072-6643 TI - Dietary Fibre Consensus from the International Carbohydrate Quality Consortium (ICQC) ER - TY - JOUR AB - 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. AU - Hua, Yifan AU - Herder, Christian AU - Kalhoff, Hermann AU - Buyken, Anette AU - Esche, Jonas AU - Krupp, Danika AU - Wudy, Stefan A. AU - Remer, Thomas ID - 27800 JF - American Journal of Physiology-Renal Physiology SN - 1931-857X TI - Inflammatory mediators in the adipo-renal axis: leptin, adiponectin, and soluble ICAM-1 ER - TY - JOUR AU - Nyasordzi, Juliana AU - Penczynski, Katharina AU - Remer, Thomas AU - Buyken, Anette ID - 27801 JF - PLOS ONE SN - 1932-6203 TI - Early life factors and their relevance to intima-media thickness of the common carotid artery in early adulthood ER - TY - JOUR AU - Schwingshackl, Lukas AU - Neuenschwander, Manuela AU - Hoffmann, Georg AU - Buyken, Anette AU - Schlesinger, Sabrina ID - 27803 JF - The American Journal of Clinical Nutrition SN - 0002-9165 TI - Reply to Khan et al. ER - TY - JOUR AB - 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. AU - Perrar, Ines AU - Gray, Nicola AU - Kuhnle, Gunter G. AU - Remer, Thomas AU - Buyken, Anette AU - Alexy, Ute ID - 27806 JF - British Journal of Nutrition SN - 0007-1145 TI - Sugar intake among German adolescents: trends from 1990 to 2016 based on biomarker excretion in 24-h urine samples ER - TY - JOUR AB - There is no question that elevated postprandial glycemia is a significant driver of common chronic diseases globally [...] AU - Brand-Miller, Jennie AU - Buyken, Anette ID - 27807 JF - Nutrients SN - 2072-6643 TI - The Relationship between Glycemic Index and Health ER - TY - JOUR AU - Drossel, Kerstin AU - Kampmeyer, Meike ID - 27826 JF - Friedrich Jahresheft #schuleDIGITAL TI - Lehrerkooperation im Zeitalter der Digitalisierung – Potenziale, Herausforderungen und Gelingensbedingungen VL - 38 ER - TY - JOUR AU - Drossel, Kerstin AU - Heldt, Melanie ID - 27827 IS - 2 JF - Schulmanagement TI - Die Rolle der Schulleitung in Kooperationsprozessen im Zeitalter der Digitalisierung ER - TY - CHAP AU - Eickelmann, Birgit AU - Drossel, Kerstin ED - van Ackeren, Isabell ED - Bremer, Helmut ED - Kessl, Fabian ED - Koller, Hans Christoph ED - Pfaff, Nicolle ED - Rotter, Caroline ED - Klein, Dominique ED - Salaschek, Ulrich ID - 27828 T2 - Bewegungen - Beiträge zum 26. Kongress der Deutschen Gesellschaft für Erziehungswissenschaft TI - Lehrer*innenbildung und Digitalisierung - Konzepte und Entwicklungsperspektiven ER - TY - CHAP AU - Drossel, Kerstin AU - Heldt, Melanie AU - Eickelmann, Birgit ED - Kaspar, Kai ED - Becker-Mrotzek, Michael ED - Hofhues, Sandra ED - König, Johannes ED - Schmeinck, Daniela ID - 27829 T2 - Bildung, Schule und Digitalisierung TI - Die Implementation digitaler Medien in den Unterricht gemeinsam gestalten: Lehrer*innenbildung durch medienbezogene Kooperation ER - TY - BOOK AU - Eickelmann, Birgit AU - Drossel, Kerstin AU - Heldt, Melanie ID - 27832 TI - Schule auf Distanz. Perspektiven und Empfehlungen für den Schulalltag. Eine repräsentative Befragung von Lehrkräften in Deutschland ER - TY - JOUR AU - Eickelmann, Birgit AU - Drossel, Kerstin AU - Heldt, Melanie ID - 27833 IS - 3 JF - Schulmanagement. Fachzeitschrift für Schul- und Unterrichtsentwicklung TI - Vorteile digital fortgeschrittener Schulen in der Pandemie-Zeit. Ergebnisse einer repräsentativen Lehrkräftebefragung VL - 51 ER - TY - JOUR AU - Drossel, Kerstin AU - Heldt, Melanie ID - 27834 JF - Schulmagazin 5-10 TI - Medienbezogene Lehrerkooperation. Kooperationsformen und thematische Schwerpunkte ER - TY - CHAP AU - Drossel, Kerstin AU - Eickelmann, Birgit ED - Keßler, Catharina I. ED - Nolte, Sonja ID - 27835 T2 - (Neue) Formen der Differenzierung. Schul- und Klassenprofilierung im Spannungsfeld gesellschaftlicher Teilhabe und sozialer Ungleichheit TI - Digitalisierung als Schulprofil am Gymnasium - eine längsschnittliche Untersuchung zur Entwicklung der computerbezogenen Kompetenzen ER - TY - JOUR AB - 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. AU - Drossel, Kerstin AU - Eickelmann, Birgit AU - Vennemann, Mario ID - 27837 JF - Large-scale Assessments in Education SN - 2196-0739 TI - Schools overcoming the digital divide: in depth analyses towards organizational resilience in the computer and information literacy domain VL - 8 ER - TY - CHAP AU - Vennemann, Mario AU - Drossel, Kerstin AU - Eickelmann, Birgit ED - Eickelmann, Birgit ED - Labusch, Amelie ED - Drossel, Kerstin ED - Vennemann, Mario ID - 27840 T2 - ICILS 2018 #NRW. Vertiefende Analysen und Befunde für Nordrhein-Westfalen im internationalen Vergleich TI - Sozial- und migrationsbedingte Disparitäten in den computer- und informationsbezogenen Kompetenzen von Schülerinnen und Schülern ER - TY - CHAP AU - Eickelmann, Birgit AU - Drossel, Kerstin AU - Gerick, Julia ED - Eickelmann, Birgit ED - Labusch, Amelie ED - Drossel, Kerstin ED - Vennemann, Mario ID - 27850 T2 - ICILS 2018 #NRW. Vertiefende Analysen und Befunde für Nordrhein-Westfalen im internationalen Vergleich TI - Die Perspektive der Schulleitung auf Prioritäten zum Lernen und Lehren mit digitalen Medien ER - TY - CHAP AU - Eickelmann, Birgit AU - Drossel, Kerstin AU - Niemann, Jan ED - Eickelmann, Birgit ED - Labusch, Amelie ED - Drossel, Kerstin ED - Vennemann, Mario ID - 27851 T2 - ICILS 2018 #NRW. Vertiefende Analysen und Befunde für Nordrhein-Westfalen im internationalen Vergleich TI - Lehrerfortbildung zum Lernen und Lehren mit digitalen Medien ER - TY - JOUR AU - Heldt, Melanie AU - Drossel, Kerstin AU - Eickelmann, Birgit ID - 27859 IS - 3 JF - Schulmanagement-Handbuch TI - Lieber gemeinsam als alleine!? Ein Überblick über die Situation unterrichtsbezogener Lehrerkooperationen im Zeitalter der Digitalisierung in Deutschland VL - 175 ER - TY - CHAP AU - Tondeur, Jo AU - Petko, Dominik AU - Barma, Sylvie AU - Christensen, Rhonda AU - Drossel, Kerstin AU - Eichhorn, Koos AU - Knezek, Gerald AU - Mukama, Evode AU - Schmidt-Crawford, Denise AU - Starkey, Louise AU - Thabano Nleya, Paul ED - Fisser, Petra ED - Phillips, Michael ID - 27860 T2 - Report of EDUsummIT 2019. Learners and learning contexts: new alignments for the digital age TI - Advancing Conceptual Models of Technology Integration in Education: Implications for Researchers, Practitioners and Policymakers ER - TY - CHAP AU - Drossel, Kerstin AU - Heldt, Melanie AU - Eickelmann, Birgit ED - Kaspar, Kai ED - Becker-Mrozek, Michael ED - Hofhues, Sandra ED - König, Johannes ED - Schmeinck, Daniela ID - 27863 T2 - Bildung, Schule und Digitalisierung TI - Lehrer*innenbildung durch medienbezogene Kooperation ER - TY - JOUR AB - 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. AU - Heldt, Melanie AU - Massek, Corinna AU - Drossel, Kerstin AU - Eickelmann, Birgit ID - 27864 JF - Large-scale Assessments in Education SN - 2196-0739 TI - The relationship between differences in students’ computer and information literacy and response times: an analysis of IEA-ICILS data VL - 8 ER - TY - JOUR AU - Eickelmann, Birgit AU - Drossel, Kerstin ID - 27865 IS - 12 JF - SchulVerwaltung Baden-Württemberg TI - Schulschließungen und Perspektiven für die Pandemie-Zeit VL - 29 ER - TY - CHAP AU - Drossel, Kerstin AU - Eickelmann, Birgit ED - Meister, Dorothee M. ED - Midt, Ilka ID - 27866 T2 - Mobile Medien im Schulkontext (Reihe Medienbildung und Gesellschaft) TI - Der Einsatz von Tablets am Gymnasium und der Zusammenhang mit der Entwicklung computerbezogener Kompetenzen von Schüler*innen ER - TY - CHAP AU - Eickelmann, Birgit AU - Drossel, Kerstin ED - Tatnall, Arthur ID - 27867 SN - 9783030105754 T2 - Encyclopedia of Education and Information Technologies TI - Students’ computer literacy and the use of tablets in upper secondary schools ER - TY - BOOK AU - Eickelmann, Birgit AU - Drossel, Kerstin ID - 27869 TI - Digitales Potenzial. Erfolgreiche Förderung digitaler Kompetenzen von Schülerinnen und Schülern an nicht-gymnasialen Schulen der Sekundarstufe I ER - TY - DATA AU - Teidla-Kunitsõn, Gertha ID - 27873 TI - ICT usage across Europe: A literature review and an overview of existing data ER - TY - JOUR AU - Dalvandi, Sadegh AU - Doherty, Simon AU - Dongol, Brijesh AU - Wehrheim, Heike ID - 21016 IS - 2 JF - Dagstuhl Artifacts Ser. TI - Owicki-Gries Reasoning for C11 RAR (Artifact) VL - 6 ER - TY - CONF AU - Dalvandi, Sadegh AU - Doherty, Simon AU - Dongol, Brijesh AU - Wehrheim, Heike ED - Hirschfeld, Robert ED - Pape, Tobias ID - 21017 T2 - 34th European Conference on Object-Oriented Programming, {ECOOP} 2020, November 15-17, 2020, Berlin, Germany (Virtual Conference) TI - Owicki-Gries Reasoning for C11 RAR VL - 166 ER - TY - CONF AU - Richter, Cedric AU - Wehrheim, Heike ID - 21018 T2 - 35th {IEEE/ACM} International Conference on Automated Software Engineering, {ASE} 2020, Melbourne, Australia, September 21-25, 2020 TI - Attend and Represent: A Novel View on Algorithm Selection for Software Verification ER - TY - GEN ED - Ahrendt, Wolfgang ED - Wehrheim, Heike ID - 21019 SN - 978-3-030-50994-1 TI - Tests and Proofs - 14th International Conference, TAP@STAF 2020, Bergen, Norway, June 22-23, 2020, Proceedings [postponed] VL - 12165 ER - TY - JOUR AU - Allgaier, M. AU - Ansari, V. AU - Donohue, J. M. AU - Eigner, Christof AU - Quiring, V. AU - Ricken, R. AU - Brecht, Benjamin AU - Silberhorn, Christine ID - 21022 JF - Physical Review A SN - 2469-9926 TI - Pulse shaping using dispersion-engineered difference frequency generation VL - 101 ER - TY - JOUR AU - Ansari, Vahid AU - Donohue, John M. AU - Brecht, Benjamin AU - Silberhorn, Christine ID - 21024 IS - 19 JF - Optics Express SN - 1094-4087 TI - Remotely projecting states of photonic temporal modes VL - 28 ER - TY - CHAP AU - Menke, Peter ED - Kluge, Bettina ED - Mihatsch, Wiltrud ED - Schaller, Birte ID - 21078 T2 - Kommunikationsdynamiken zwischen Mündlichkeit und Schriftlichkeit. Festschrift für Barbara Job zum 60. Geburtstag TI - »ich wusste doch irgendwas war zu einfach«. Gesprächsanalytische Betrachtungen von Proberunden zum Lernen von Gesellschaftsspielen ER - TY - GEN AU - Manegold, Philipp ID - 21117 TI - On Batch Proofs of Partial Knowledge ER - TY - GEN AU - Anonymous, Anonymous ID - 21118 TI - Measuring the Performance of SNARK Libraries ER - TY - GEN AU - Westerwelle, Max ID - 21119 TI - Trapdoors and Sampling Procedures for Lattice-Based Cryptographic Constructions ER - TY - GEN AU - Anonymous, Anonymous ID - 21121 TI - Benchmarking the Efficiency of Secure Multiparty Computation for Real World Problems ER - TY - JOUR AU - Pekkarinen, Satu AU - Hennala, Lea AU - Tuisku, Outi AU - Gustafsson, Christine AU - Johansson-Pajala, Rose-Marie AU - Thommes, Kirsten AU - Hoppe, Julia Amelie AU - Melkas, Helinä ID - 21126 JF - Gerontechnology SN - 1569-1101 TI - Care robots in society: Knowledge and orientation needs ER - TY - JOUR AU - Johansson-Pajala, Rose-Marie AU - Thommes, Kirsten AU - Hoppe, Julia Amelie AU - Tuisku, Outi AU - Hennala, Lea AU - Pekkarinen, Satu AU - Melkas, Helinä AU - Gustafsson, Christine ID - 21127 JF - Gerontechnology SN - 1569-1101 TI - The need for care robot orientation in elder care services ER - TY - GEN AB - 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. AU - Otroshi, Mortaza AU - Meschut, Gerson AU - Masendorf, Lukas AU - Esderts, Alfons ID - 21152 SN - 978-3-86776-602-9 TI - Simulationsbasierte Betriebsfestigkeitsanalyse stanzgenieteter Bauteile ER - TY - CONF AB - 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. AU - Alexandrovsky, Dmitry AU - Volkmar, Georg AU - Spliethöver, Maximilian AU - Finke, Stefan AU - Herrlich, Marc AU - Döring, Tanja AU - Smeddinck, Jan David AU - Malaka, Rainer ID - 21174 SN - 9781450380744 T2 - Proceedings of the Annual Symposium on Computer-Human Interaction in Play TI - Playful User-Generated Treatment: A Novel Game Design Approach for VR Exposure Therapy ER - TY - THES AU - Wolf, Verena ID - 21205 TI - Service System Innovation: An Ambidexterity Perspective ER - TY - THES AB - 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. AU - Ahlers, Dominik ID - 21209 KW - Additive Manufacturing KW - SLM SN - 978-3844074246 TI - Parameter- und Prozessoptimierung für den additiven Fertigungsprozess im Pulverbett am Beispiel der Legierung Ti6Al4V VL - 19 ER - TY - CHAP AU - Jakob, Eva Alexandra AU - Hansjürgen, Lea ED - Lutz, Eva ED - Süß, Stefan ID - 21216 T2 - Wettbewerbsfähigkeit von Start-ups, Erfolgreiche Düsseldorfer Unternehmen TI - Volunteer World GmbH – Schildkrötenretten als Business Case ER - TY - JOUR AB - 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. AU - Sahoo, Sudhir K. AU - Heske, Julian Joachim AU - Antonietti, Markus AU - Qin, Qing AU - Oschatz, Martin AU - Kühne, Thomas ID - 21239 IS - 10 JF - ACS Applied Energy Materials TI - Electrochemical N2 Reduction to Ammonia Using Single Au/Fe Atoms Supported on Nitrogen-Doped Porous Carbon VL - 3 ER - TY - JOUR AB - 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. AU - Wiebeler, Hendrik AU - Kormath Madam Raghupathy, Ramya AU - Mirhosseini, S. Hossein AU - Kühne, Thomas ID - 21241 IS - 1 JF - Journal of Physics: Materials TI - Virtual screening of nitrogen-, phosphorous- and halide-containing materials as p-type transparent conductors VL - 4 ER - TY - JOUR AB - 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. AU - Altenhöner, Reinhard AU - Blümel, Ina AU - Boehm, Franziska AU - Bove, Jens AU - Bicher, Katrin AU - Bracht, Christian AU - Brand, Ortrun AU - Dieckmann, Lisa AU - Effinger, Maria AU - Hagener, Malte AU - Hammes, Andrea AU - Heller, Lambert AU - Kailus, Angela AU - Kohle, Hubertus AU - Ludwig, Jens AU - Münzmay, Andreas AU - Pittroff, Sarah AU - Razum, Matthias AU - Röwenstrunk, Daniel AU - Sack, Harald AU - Simon, Holger AU - Schmidt, Dörte AU - Schrade, Torsten AU - Walzel, Annika-Valeska AU - Wiermann, Barbara ID - 21257 JF - Research Ideas and Outcomes SN - 2367-7163 TI - NFDI4Culture - Consortium for research data on material and immaterial cultural heritage ER - TY - CHAP AU - Huhmann, Tobias AU - Eilterts, Katja AU - Schulte, Carsten AU - Winkelnkemper, Felix ID - 21268 T2 - Digitales Lernen in der Grundschule II: Aktuelle Trends in Forschung und Praxis TI - Der Darstellungsflüchtigkeit im Geometrieunterricht durch digitale Unterstützung entgegenwirken ER - TY - JOUR AU - Ködding, Patrick AU - Reinhold, Jannik AU - Scholtysik, Michel AU - Dumitrescu, Roman ID - 21269 IS - 2 JF - Journal of Systemics, Cybernetics and Informatics SN - 1690-4524 TI - Consulting via Research in IMPRESS VL - 18 ER - TY - JOUR AU - Drewel, Marvin AU - Özcan, Leon AU - Koldewey, Christian AU - Gausemeier, Jürgen ID - 21281 JF - Creativity and Innovation Management SN - 0963-1690 TI - Pattern‐based development of digital platforms ER - TY - JOUR AB - 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. AU - Mirbabaie, Milad AU - Bunker, Deborah AU - Stieglitz, Stefan AU - Marx, Julian AU - Ehnis, Christian ID - 21282 JF - Journal of Information Technology SN - 0268-3962 TI - Social media in times of crisis: Learning from Hurricane Harvey for the coronavirus disease 2019 pandemic response ER - TY - JOUR AB - 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. AU - Kaimann, Daniel ID - 21287 IS - 15 JF - Sustainability SN - 2071-1050 TI - Behind the Review Curtain: Decomposition of Online Consumer Ratings in Peer-to-Peer Markets VL - 12 ER - TY - JOUR AU - Stieglitz, Stefan AU - Wilms, Konstantin AU - Mirbabaie, Milad AU - Hofeditz, Lennart AU - Brenger, Bela AU - López, Ania AU - Rehwald, Stephanie ID - 21306 JF - PLOS ONE SN - 1932-6203 TI - When are researchers willing to share their data? – Impacts of values and uncertainty on open data in higher education ER - TY - CONF AU - Hofeditz, L. AU - Mirbabaie, Milad AU - Stieglitz, S. ID - 21315 T2 - Proceedings of the 31st Australasian Conference on Information Systems TI - Virtually Extended Coworking Spaces – The Reinforcement of Social Proximity, Motivation and Knowledge Sharing Through ICT ER - TY - CONF AU - Mirbabaie, Milad AU - Marx, J. AU - Braun, L.-M. AU - Stieglitz, S. ID - 21316 T2 - Proceedings of the 31st Australasian Conference on Information Systems TI - Digital Detox – Mitigating Digital Overuse in Times of Remote Work and Social Isolation ER - TY - CONF AU - Marx, J. AU - Brünker, F. AU - Mirbabaie, Milad AU - Hochstrate, E. ID - 21317 T2 - Proceedings of the 31st Australasian Conference on Information Systems TI - ‘Conspiracy Machines’ - The Role of Social Bots during the COVID-19 ‘Infodemic’ ER - TY - CONF AU - Fromm, J. AU - Mirbabaie, Milad AU - Stieglitz, S. ID - 21318 T2 - Proceedings of the Twenty-Eight European Conference on Information Systems TI - A Systematic Review of Empirical Affordance Studies: Recommendations for Affordance Research in Information Systems ER - TY - CONF AU - Mirbabaie, Milad AU - Stieglitz, S. AU - Lambertz, L. ID - 21319 T2 - Proceedings of the 15th International Conference on Wirtschaftsinformatik TI - The Usage of Twitter Data for Early Crisis Detection ER - TY - CONF AU - Brünker, F. AU - Marx, J. AU - Ross, B. AU - Mirbabaie, Milad AU - Stieglitz, S. ID - 21320 T2 - Proceedings of the 15. Internationaler Kongress Für Wirtschaftsinformatik TI - ‘The Tireless Selling-Machine’ – Commercial Deployment of Social Bots during Black Friday Season on Twitter ER - TY - CONF AU - Fromm, J. AU - Mirbabaie, Milad AU - Stieglitz, S. ID - 21321 T2 - Proceedings of the 15. Internationaler Kongress Für Wirtschaftsinformatik TI - The Effects of Virtual Reality Affordances and Constraints on Negative Group Effects during Brainstorming Sessions ER - TY - CONF AU - Brünker, F. AU - Wischnewski, M. AU - Mirbabaie, Milad AU - Meinert, J. ID - 21322 T2 - Proceedings of the 51nd Hawaii International Conference on System Sciences TI - The Role of Social Media during Social Movements – Observations from the #metoo Debate on Twitter ER - TY - GEN AU - Chandrakar, Khushboo ID - 21324 TI - Comparison of Feature Selection Techniques to Improve Approximate Circuit Synthesis ER - TY - CONF AU - Pierenkemper, Christoph AU - Gausemeier, Jürgen ID - 21377 T2 - Proceeding of the ISPIM Connects TI - Developing Strategies for Digital Transformation in SMEs with Maturity Models ER - TY - JOUR AU - Dumitrescu, Roman AU - Drewel, Marvin AU - Falkowski, Tommy ID - 21379 IS - 1-2 JF - ZWF, Zeitschrift für wirtschaftliche Fabrikplanung TI - KI-Marktplatz: Das Ökosystem für Künstliche Intelligenz in der Produktentstehung ER - TY - CONF AU - Anacker, Harald AU - Dumitrescu, Roman AU - Kharatyan, Aschot AU - Lipsmeier, Andre ID - 21380 T2 - Proceedings of the Design Society TI - Pattern based systems engineering – application of solution patterns in the design of intelligent technical systems ER - TY - CONF AU - Lipsmeier, Andre AU - Kühn, Arno AU - Joppen, Robert AU - Dumitrescu, Roman ID - 21381 IS - 88 T2 - Procedia CIRP TI - Process for the development of a digital strategy ER - TY - CONF AU - Japs, Segej AU - Kharatyan, Aschot AU - Tekaat, Julian AU - Kaiser, Lydia AU - Dumitrescu, Roman ID - 21382 T2 - Proceedings of the Design Society TI - Method for 3D-Environment Driven Domain Knowledge Elicitaion and System Model Generation ER - TY - CONF AU - Jürgenhake, Christoph AU - Anacker, Harald AU - Dumitrescu, Roman ID - 21383 T2 - Proceedings of the IEEE TI - The digital Stadium – From future scenarios to technology and business model development ER - TY - CONF AU - Röltgen, Daniel AU - Dumitrescu, Roman ID - 21384 IS - 91 T2 - Procedia CIRP TI - Classification of Industrial Augmented Reality Use Cases ER - TY - CONF AU - Hobscheidt, Daniela AU - Kühn, Arno AU - Dumitrescu, Roman ID - 21385 IS - 91 T2 - Procedia CIRP TI - Development of risk-optimized implementation paths for Industry 4.0 based on socio-technical pattern ER - TY - CONF AU - Wortmann, Fabio AU - Ellermann, Kai AU - Kühn, Arno AU - Dumitrescu, Roman ID - 21386 IS - 91 T2 - Procedia CIRP TI - Ideation for digital platforms based on a companies‘ ecosystem ER - TY - CONF AU - Dyck, Florian AU - Stöcklein, Jörg AU - Eckertz, Daniel AU - Dumitrescu, Roman ID - 21387 T2 - Virtual, Augmented and Mixed Reality. Design and Interaction TI - Mixed Mock-up – Development of an Interactive Augmented Reality System for Assembly Planning ER - TY - CONF AU - Bretz, Lukas AU - Koenemann, Ulf AU - Anacker, Harald AU - Dumitrescu, Roman ID - 21388 IS - 91 T2 - Procedia CIRP TI - A contribution to the design of organizational structures suitable for Systems Engineering ER - TY - CONF AU - Hillebrand, Michael AU - Greinert, Matthias AU - Herzog, Otthein AU - Dumitrescu, Roman ID - 21389 T2 - Proceedings of the 2020 IEEE 15th International Conference of System of Systems Engineering (SoSE) TI - Advanced Monkey Testing for connected autonomous systems ER - TY - CONF AU - Hillebrand, Michael AU - Lakhani, Mohsin AU - Dumitrescu, Roman ID - 21390 IS - 52 T2 - Procedia Manufacturing 52 TI - A design methodology for deep reinforcement learning for autonomous Systems ER - TY - CHAP AU - Reinhart, Felix AU - von Enzberg, Sebastian AU - Kühn, Arno AU - Dumitrescu, Roman ED - Beyerer, Jürgen ED - Maier, Alexander ED - Niggemann, Oliver ID - 21391 T2 - Machine Learning for Cyber Physical Systems. Technologien für die intelligente Automation (Technologies for Intelligent Automation) TI - Machine Learning for Process-X: A Taxonomy VL - 11 ER - TY - CONF AU - Henkenjohann, Mark AU - Joppen, Robert AU - Köchling, Daniel AU - von Enzberg, Sebastian AU - Kühn, Arno AU - Dumitrescu, Roman ID - 21392 T2 - Procedia CIRP TI - Identification and specification of standard modules in production for a material flow simulation ER - TY - CONF AU - Grote, Eva-Maria AU - Pfeifer, Stefan AU - Röltgen, Daniel AU - Kühn, Arno AU - Dumitrescu, Roman ID - 21394 T2 - Proceedings of the 2020 IEEE International Symposium on Systems Engineering TI - Towards defining role models in Advanced Systems Engineering ER - TY - CHAP AU - Dumitrescu, Roman AU - Tschirner, Christian AU - Bansmann, Michael ED - Maier, Günter ED - Engels, Gregor ED - Steffen, Eckhard ID - 21395 T2 - Handbuch Gestaltung digitaler und vernetzter Arbeitswelten TI - Systems Engineering als Grundlage der Gestaltung digitaler Arbeitswelten in der Produktentstehung ER - TY - CHAP AB - 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. AU - Jager, Tibor AU - Niehues, David ID - 21396 KW - Admissible hash functions KW - Verifiable random functions KW - Error-correcting codes KW - Provable security SN - 0302-9743 T2 - Lecture Notes in Computer Science TI - On the Real-World Instantiability of Admissible Hash Functions and Efficient Verifiable Random Functions ER - TY - JOUR AB - 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. AU - Binder, Sebastian AU - Lorenz, Johannes ID - 21403 IS - 3 JF - Der Konzern TI - Update zur grunderwerbsteuerlichen Konzernklausel vor dem Hintergrund der jüngsten BFH-Rechtsprechung VL - 18 ER - TY - GEN AB - 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. AU - Blaufus, Kay AU - Chirvi, Malte AU - Huber, Hans-Peter AU - Maiterth, Ralf AU - Sureth-Sloane, Caren ID - 21406 TI - Tax Misperception and Its Effects on Decision Making - a Literature Review VL - No. 39 ER - TY - GEN AU - Bornemann, Tobias AU - Schipp, Adrian AU - Sureth-Sloane, Caren ID - 21407 TI - 2018/2019 Umfrage zur Steuerkomplexität in deutschen Finanzverwaltungen ER - TY - CHAP AB - 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. AU - Diller, Markus AU - Lorenz, Johannes AU - Meier, David ED - Neufeld, Janis S. ED - Buscher, Udo ED - Lasch, Rainer ED - Möst, Dominik ED - Schönberger, Jörn ID - 21408 SN - 978-3-030-48439-2 T2 - Operations Research Proceedings 2019 TI - Tax Avoidance and Social Control ER - TY - GEN AB - 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. AU - Eberhartinger, Eva AU - Speitmann, Raffael AU - Sureth-Sloane, Caren ID - 21409 TI - Real Effects of Public Country-by-Country Reporting and the Firm Structure of European Banks VL - #2020-01 ER - TY - GEN AB - 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. AU - Eberhartinger, Eva AU - Speitmann, Raffael AU - Sureth-Sloane, Caren ID - 21410 TI - How Does Trust Affect Concessionary Behavior in Tax Bargaining? VL - No. 41 ER - TY - GEN AB - 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. AU - Flagmeier, Vanessa AU - Müller, Jens AU - Sureth-Sloane, Caren ID - 21411 TI - When Do Firms Highlight Their Effective Tax Rate? VL - No. 37 ER - TY - JOUR AU - Heile, Vanessa AU - Huber, Hans-Peter AU - Maiterth, Ralf AU - Sureth-Sloane, Caren ID - 21412 IS - 42 JF - Deutsches Steuerrecht TI - Steuerliche Maßnahmen als nützliches Mittel zur Bewältigung der Corona-Krise? - Ergebnisse einer Unternehmensbefragung VL - 58 ER - TY - GEN AU - Heile, Vanessa AU - Huber, Hans-Peter AU - Maiterth, Ralf AU - Sureth-Sloane, Caren ID - 21414 TI - Umfrage: Steuerliche Verwaltungskosten, steuerliche Corona-Soforthilfemaßnahmen und Investitionen in der Krise ER - TY - JOUR AB - 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. AU - Hoppe, Thomas ID - 21415 IS - 4 JF - Australian Tax Forum TI - Tax Complexity in Australia – a Survey-Based Comparison to the OECD Average VL - 35 ER - TY - GEN AB - 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. AU - Hoppe, Thomas ID - 21416 TI - Tax Complexity in Australia - A Survey-Based Comparison to the OECD Average VL - No. 14 ER - TY - GEN AU - Hoppe, Thomas AU - Schanz, Deborah AU - Schipp, Adrian AU - Siegel, Felix AU - Sturm, Susann AU - Sureth-Sloane, Caren ID - 21417 TI - 2018 Global MNC Tax Complexity Survey ER - TY - GEN AB - 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. AU - Hoppe, Thomas AU - Schanz, Deborah AU - Sturm, Susann AU - Sureth-Sloane, Caren ID - 21418 TI - Measuring Tax Complexity Across Countries: A Survey Study on MNCs VL - No. 5 ER - TY - GEN AB - 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. AU - Hoppe, Thomas AU - Schanz, Deborah AU - Sturm, Susann AU - Sureth-Sloane, Caren AU - Voget, Johannes ID - 21419 TI - The Relation between Tax Complexity and Foreign Direct Investments: Evidence Across Countries VL - No. 13 ER - TY - JOUR AU - Sureth-Sloane, Caren ID - 21422 IS - 5 JF - AWV-Informationen TI - Steuerkomplexität als Standortfaktor. So komplex ist das Steuersystem in Deutschland ER - TY - GEN AB - 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. AU - Henke, Luca-Sebastian ID - 21432 TI - Evaluation of a ReconOS-ROS Combination based on a Video Processing Application ER - TY - CONF AU - Japs, Segej AU - Kharatyan, Aschot AU - Kaiser, Lydia AU - Dumitrescu, Roman ID - 21438 T2 - Proceedings of the 16th International Design Conference (DESIGN 2020) TI - CONSENS 3D: Method for 3D-Environment Driven Domain Knowledge Elicitaion and System Model Generation ER - TY - CONF AU - Pfeifer, Stefan AU - Seidenberg, Tobias AU - Jürgenhake, Christoph AU - Anacker, Harald AU - Dumitrescu, Roman ID - 21439 T2 - Procedia Manufacturing TI - Towards a modular product architecture for electric ferries using Model- Based Systems Engineering ER - TY - CONF AU - Wiecher, Carsten AU - Japs, Sergej AU - Kaiser, Lydia AU - Greenyer, Joel AU - Wolff, Carsten AU - Dumitrescu, Roman ID - 21440 T2 - ACM/IEEE 23rd International Conference on Model Driven Engineering Languages and Systems (MODELS ’20 Companion) TI - Scenarios in the Loop: Integrated Requirements Analysis and Automotive System Validation ER - TY - CONF AU - Yee, Jingye AU - Low, Cheng Yee AU - Ong, P. AU - Soh, WS AU - Hannapiah, Fazah Akhtar AU - Zakaria, NC AU - von Enzberg, Sebastian AU - Asmar, Laban AU - Dumitrescu, Roman ID - 21441 T2 - IOP Conference Series: Materials Science and Engineering TI - Verification of Mathematical Model for Upper Limb Spasticity with Clinical Data ER - TY - JOUR AU - Heggemann, Thomas AU - Homberg, Werner AU - Sapli, Hüseyin ID - 21444 JF - Procedia Manufacturing SN - 2351-9789 TI - Combined Curing and Forming of Fiber Metal Laminates ER - TY - CONF AU - Anjorin, Anthony AU - Weidmann, Nils AU - Oppermann, Robin AU - Fritsche, Lars AU - Schürr, Andy ED - Syriani, Eugene ED - Sahraoui, Houari ED - de Lara, Juan ED - Abrahao, Silvia ID - 21480 SN - 9781450370196 T2 - Proceedings of the 23rd ACM/IEEE International Conference on Model Driven Engineering Languages and Systems, MODELS 2020 TI - Automating test schedule generation with domain-specific languages ER - TY - CONF AU - Weidmann, Nils AU - Fritsche, Lars AU - Anjorin, Anthony ED - Lämmel, Ralf ED - Tratt, Laurcence ED - de Lara, Juan ID - 21481 SN - 9781450381765 T2 - Proceedings of the 13th ACM SIGPLAN International Conference on Software Language Engineering, SLE 2020 TI - A search-based and fault-tolerant approach to concurrent model synchronisation ER - TY - CONF AU - Weidmann, Nils AU - Anjorin, Anthony AU - Cheney, James ED - Hoffmann, Berthold ED - Minas, Mark ID - 21482 SN - 2075-2180 T2 - Proceedings of the Eleventh International Workshop on Graph Computation Models, GCM@STAF 2020 TI - VICToRy: Visual Interactive Consistency Management in Tolerant Rule-based Systems ER - TY - CONF AU - Jovanovikj, Ivan AU - Weidmann, Nils AU - Yigitbas, Enes AU - Anjorin, Anthony AU - Sauer, Stefan AU - Engels, Gregor ED - Babur, Önder ED - Denil, Joachim ED - Vogel-Heuser, Birgit ID - 21483 SN - 1865-0929 T2 - Proceedings of the First International Conference on Systems Modelling and Management, ICSMM 2020 TI - A Model-Driven Mutation Framework for Validation of Test Case Migration ER - TY - GEN ED - Bernijazov, Ruslan ED - Özcan, Leon ED - Dumitrescu, Roman ID - 21486 IS - 122 T2 - ERCIM News TI - AI Marketplace – The Ecosystem for Artificial Intelligence in Product Creation ER - TY - CONF AU - Sapli, Hüseyin AU - Heggemann, Thomas AU - Homberg, Werner ID - 21522 TI - Combined Curing and Deep Drawing of Fiber Metal Laminates to Spherical Hybrid Components ER - TY - CONF AU - Bengs, Viktor AU - Hüllermeier, Eyke ID - 21534 T2 - International Conference on Machine Learning TI - Preselection Bandits ER - TY - GEN AB - 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. AU - Bengs, Viktor AU - Hüllermeier, Eyke ID - 21536 T2 - arXiv:2011.00813 TI - Multi-Armed Bandits with Censored Consumption of Resources ER - TY - JOUR AU - Ortmann, Regina AU - Pelster, Matthias AU - Wengerek, Sascha Tobias ID - 21539 JF - Finance Research Letters SN - 1544-6123 TI - COVID-19 and investor behavior ER - TY - CONF AB - 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. AU - Lange, Sven AU - Schroder, Dominik AU - Hedayat, Christian AU - Hangmann, Christian AU - Otto, Thomas AU - Hilleringmann, Ulrich ID - 21541 KW - Near-Field Scanner KW - Near-Field to Far-Field Transformation KW - Directivity KW - Surface Equivalence Theorem KW - Huygens’ Box SN - 2325-0364 T2 - 2020 International Symposium on Electromagnetic Compatibility - EMC EUROPE TI - Investigation of the Surface Equivalence Principle on a Metal Surface for a Near-Field to Far-Field Transformation by the NFS3000 ER - TY - CHAP AB - 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. AU - Schröder, Dominik AU - Lange, Sven AU - Hangmann, Christian AU - Hedayat, Christian ID - 21542 KW - Huygens' box KW - NF-to-FF transformation KW - efficient FF radiation model KW - FF behaviour KW - EMI assessment KW - PCB KW - near-field measurements KW - efficient radiation model KW - far-field behaviour KW - RF design process KW - far-field prediction KW - Huygens'box principle KW - fullwave simulation KW - electronic system radiation KW - equivalent radiation source KW - electromagnetic simulation tool KW - near-field scan data KW - EM compatibility failure reduction SN - 9781839530494 T2 - Tensorial Analysis of Networks (TAN) Modelling for PCB Signal Integrity and EMC Analysis TI - Far-field prediction combining simulations with near-field measurements for EMI assessment of PCBs ER - TY - CHAP AU - Berger, Thomas AU - Lanza, Lukas Johannes ID - 21579 SN - 2199-7497 T2 - Progress in Differential-Algebraic Equations II TI - Observers for Differential-Algebraic Systems with Lipschitz or Monotone Nonlinearities ER - TY - CONF AU - Gatica, Carlos Paiz AU - Platzner, Marco ID - 21584 SN - 2522-8579 T2 - Machine Learning for Cyber Physical Systems (ML4CPS 2017) TI - Adaptable Realization of Industrial Analytics Functions on Edge-Devices using Reconfigurable Architectures ER - TY - JOUR AU - Meschede, Henning ID - 21608 JF - Renewable Energy SN - 0960-1481 TI - Analysis on the demand response potential in hotels with varying probabilistic influencing time-series for the Canary Islands ER - TY - JOUR AU - Graf-Schlattmann, Marcel AU - Meister, Dorothee M. AU - Oevel, Gudrun AU - Wilde, Melanie ID - 17331 IS - 1 JF - Forschungsperspektiven auf Digitalisierung in Hochschulen, Zeitschrift für Hochschulentwicklung TI - Kollektive Veränderungsbereitschaft als zentraler Erfolgsfaktor von Digitalisierungsprozessen an Hochschulen VL - 15 ER - TY - JOUR AU - Hampel, Uwe AU - Schubert, Markus AU - Döß, Alexander AU - Sohr, Johanna AU - Vishwakarma, Vineet AU - Repke, Jens‐Uwe AU - Gerke, Sören J. AU - Leuner, Hannes AU - Rädle, Matthias AU - Kapoustina, Viktoria AU - Schmitt, Lucas AU - Grünewald, Marcus AU - Brinkmann, Jost H. AU - Plate, Dominik AU - Kenig, Eugeny AU - Lutters, Nicole AU - Bolenz, Lukas AU - Buckmann, Felix AU - Toye, Dominique AU - Arlt, Wolfgang AU - Linder, Thomas AU - Hoffmann, Rainer AU - Klein, Harald AU - Rehfeldt, Sebastian AU - Winkler, Thomas AU - Bart, Hans‐Jörg AU - Wirz, Dominic AU - Schulz, Jonas AU - Scholl, Stephan AU - Augustin, Wolfgang AU - Jasch, Katharina AU - Schlüter, Florian AU - Schwerdtfeger, Natalie AU - Jahnke, Stefan AU - Jupke, Andreas AU - Kabatnik, Christoph AU - Braeuer, Andreas Siegfried AU - D'Auria, Mirko AU - Runowski, Thomas AU - Casal, Maria Francisco AU - Becker, Karsten AU - David, Anna‐Lena AU - Górak, Andrzej AU - Skiborowski, Mirko AU - Groß, Kai AU - Qammar, Hina ID - 17335 JF - Chemie Ingenieur Technik SN - 0009-286X TI - Recent Advances in Experimental Techniques for Flow and Mass Transfer Analyses in Thermal Separation Systems VL - 92 ER - TY - CHAP AU - Jazayeri, Bahar AU - Schwichtenberg, Simon AU - Küster, Jochen AU - Zimmermann, Olaf AU - Engels, Gregor ID - 17337 SN - 0302-9743 T2 - Advanced Information Systems Engineering TI - Modeling and Analyzing Architectural Diversity of Open Platforms ER - TY - CHAP AB - 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. AU - Bäumer, Frederik Simon AU - Kersting, Joschka AU - Buff, Bianca AU - Geierhos, Michaela ED - Audrius, Lopata ED - Rita, Butkienė ED - Daina, Gudonienė ED - Vilma, Sukackė ID - 17347 T2 - Information and Software Technologies TI - Tag Me If You Can: Insights into the Challenges of Supporting Unrestricted P2P News Tagging VL - 1283 ER - TY - CONF AU - Kucklick, Jan-Peter AU - Müller, Oliver ID - 17348 T2 - Symposium on Statistical Challenges in Electronic Commerce Research (SCECR) TI - Location, location, location: Satellite image-based real-estate appraisal ER - TY - GEN AU - Grabo, Matti AU - Staggenborg, Christoph AU - Kenig, Eugeny ID - 17349 TI - Modellierung und Optimierung makroverkapselter Latentwärmespeicherelemente für ein luftgeführtes Wärmespeichersystem ER - TY - CHAP AU - Moritzer, Elmar AU - Hüttner, Matthias AU - Henning, Bernd AU - Webersen, Manuel ED - Hopmann, Christian ED - Dahlmann, Rainer ID - 17352 SN - 9783662608081 T2 - Advances in Polymer Processing 2020 TI - The Influence of Hydrothermal Aging on the Material Properties of Continuous Fiber-Reinforced Thermoplastics and its Non-Destructive Characterization ER - TY - JOUR AB - 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. AU - Witschen, Linus Matthias AU - Wiersema, Tobias AU - Platzner, Marco ID - 17358 IS - 9 JF - IEEE Transactions On Very Large Scale Integration Systems KW - Approximate circuit synthesis KW - approximate computing KW - error metrics KW - formal verification KW - proof-carrying hardware SN - 1063-8210 TI - Proof-carrying Approximate Circuits VL - 28 ER - TY - JOUR AB - 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. AU - Alberto Oliveira de Souza Junior, Carlos AU - Bispo, João AU - Cardoso, João M. P. AU - Diniz, Pedro C. AU - Marques, Eduardo ID - 17359 JF - Electronics KW - pc2-harp-ressources SN - 2079-9292 TI - Exploration of FPGA-Based Hardware Designs for QR Decomposition for Solving Stiff ODE Numerical Methods Using the HARP Hybrid Architecture ER - TY - JOUR AU - Johansson-Pajala, Rose-Marie AU - Thommes, Kirsten AU - Hoppe, Julia Amelie AU - Tuisku, Outi AU - Hennala, Lea AU - Pekkarinen, Satu AU - Melkas, Helina AU - Gustafsson, Christine ID - 17361 JF - International Journal of Social Robotics TI - Care Robot Orientation: What, Who and How? Potential Users` Perceptions ER - TY - JOUR AU - Hoppe, Julia Amelie AU - Johansson-Pajala, Rose-Marie AU - Gustafsson, Christine AU - Melkas, Helinä AU - Tusku, Outi AU - Pekkarinen, Satu AU - Hennala, Lea ID - 17366 JF - Industrie 4.0 Management SN - 2364-9208 TI - Technologieorientierung zu Assistenzrobotik – Welche Akzeptanz besteht bei der Einführung von Assistenzrobotik für die Pflege älterer Menschen? VL - 2 ER - TY - CHAP AU - Hoppe, Julia Amelie AU - Johansson-Pajala, Rose-Marie AU - Gustafsson, Christine AU - Melkas, Helinä AU - Tusku, Outi AU - Pekkarinen, Satu AU - Hennala, Lea AU - Thommes, Kirsten ED - Haltaufderheide, Joschka ED - Hovemann, Johanna ED - Vollmann, Jochen ID - 17367 T2 - Aging between Participation and Simulation - Ethical Dimensions of Socially Assistive Technologies in elderly care TI - Assistive robots in care: Expectations and perceptions of older people ER - TY - CONF AU - Vorbohle, Christian AU - Szopinski, Daniel AU - Kundisch, Dennis ED - Shishkov, B. ID - 17368 SN - 978-3-030-52305-3 TI - Business Model Dependencies: Towards conceptualizing dependencies for extending modeling languages for business models VL - 391 ER - TY - JOUR AU - Ho, Nam AU - Kaufmann, Paul AU - Platzner, Marco ID - 17369 JF - International Journal of Hybrid intelligent Systems TI - Evolution of Application-Specific Cache Mappings ER - TY - CONF AB - 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. AU - Castenow, Jannik AU - Feldkord, Björn AU - Knollmann, Till AU - Malatyali, Manuel AU - Meyer auf der Heide, Friedhelm ID - 17370 KW - Online Multi-Commodity Facility Location KW - Competitive Ratio KW - Online Optimization KW - Facility Location Problem SN - 9781450369350 T2 - Proceedings of the 32nd ACM Symposium on Parallelism in Algorithms and Architectures TI - The Online Multi-Commodity Facility Location Problem ER - TY - CONF AU - Castenow, Jannik AU - Kling, Peter AU - Knollmann, Till AU - Meyer auf der Heide, Friedhelm ID - 17371 SN - 9781450369350 T2 - Proceedings of the 32nd ACM Symposium on Parallelism in Algorithms and Architectures TI - Brief Announcement: A Discrete and Continuous Study of the Max-Chain-Formation Problem: Slow Down to Speed up ER - TY - JOUR AU - Zhou, Jiaqi AU - Khazaei, Mohammad AU - Ranjbar, Ahmad AU - Wang, Vei AU - Kühne, Thomas D. AU - Ohno, Kaoru AU - Kawazoe, Yoshiyuki AU - Liang, Yunye ID - 17375 JF - J. Mater. Chem. C TI - Modulation of nearly free electron states in hydroxyl-functionalized MXenes: a first-principles study VL - 8 ER - TY - JOUR AU - Kumar Sahoo, Sudhir AU - Heske, Julian Joachim AU - Azadi, Sam AU - Zhang, Zhenzhe AU - V Tarakina, Nadezda AU - Oschatz, Martin AU - Z. Khaliullin, Rustam AU - Antonietti, Markus AU - Kühne, Thomas ID - 17379 IS - 1 JF - Scientific Reports TI - On the Possibility of Helium Adsorption in Nitrogen Doped Graphitic Materials VL - 10 ER - TY - JOUR AU - Elgabarty, Hossam AU - Kampfrath, Tobias AU - Bonthuis, Douwe Jan AU - Balos, Vasileios AU - Kaliannan, Naveen Kumar AU - Loche, Philip AU - Netz, Roland R. AU - Wolf, Martin AU - K{\, Thomas D. AU - Sajadi, Mohsen ID - 17381 IS - 17 JF - Science Advances TI - Energy transfer within the hydrogen bonding network of water following resonant terahertz excitation VL - 6 ER - TY - JOUR AU - Rengaraj, Varadarajan AU - Lass, Michael AU - Plessl, Christian AU - Kühne, Thomas D. ID - 17382 IS - 2 JF - Computation SN - 2079-3197 TI - Accurate Sampling with Noisy Forces from Approximate Computing VL - 8 ER - TY - JOUR AU - Elgabarty, Hossam AU - Kühne, Thomas D. ID - 17384 JF - Phys. Chem. Chem. Phys. TI - Tumbling with a limp: local asymmetry in water's hydrogen bond network and its consequences VL - 22 ER - TY - JOUR AU - Kühne, Thomas D. AU - Iannuzzi, Marcella AU - Del Ben, Mauro AU - Rybkin, Vladimir V. AU - Seewald, Patrick AU - Stein, Frederick AU - Laino, Teodoro AU - Khaliullin, Rustam Z. AU - Schütt, Ole AU - Schiffmann, Florian AU - al., et ID - 17386 IS - 19 JF - The Journal of Chemical Physics SN - 1089-7690 TI - CP2K: An electronic structure and molecular dynamics software package - Quickstep: Efficient and accurate electronic structure calculations VL - 152 ER - TY - JOUR AU - Chantakit, Teanchai AU - Schlickriede, Christian AU - Sain, Basudeb AU - Meyer, Fabian AU - Weiss, Thomas AU - Chattham, Nattaporn AU - Zentgraf, Thomas ID - 17390 IS - 9 JF - Photonics Research SN - 2327-9125 TI - All-dielectric silicon metalens for two-dimensional particle manipulation in optical tweezers VL - 8 ER - TY - CONF AU - Turcanu, Ion AU - Engel, Thomas AU - Sommer, Christoph ID - 17398 SN - 9781728145716 T2 - 2019 IEEE Vehicular Networking Conference (VNC) TI - Fog Seeding Strategies for Information-Centric Heterogeneous Vehicular Networks ER - TY - CONF AU - Frank, Maximilian AU - Gausemeier, Juergen AU - Hennig-Cardinal von Widdern, Nils AU - Koldewey, Christian AU - Menzefricke, Joern Steffen AU - Reinhold, Jannik ID - 17405 T2 - Proceedings of the ISPIM connects TI - A reference process for the Smart Service business: development and practical implications ER - TY - CONF AU - Becker, Julia-Kristin AU - Joachim, Klemens AU - Koldewey, Christian AU - Reinhold, Jannik AU - Dumitrescu, Roman ID - 17406 T2 - Proceedings of the 2020 ISPIM Innovation Conference (Virtual) Event "Innovating in Times of Crisis" TI - Scaling Digital Business Models: A Case from the Automotive Industry ER - TY - CONF AU - Tornede, Alexander AU - Wever, Marcel Dominik AU - Hüllermeier, Eyke ID - 17407 T2 - Discovery Science TI - Extreme Algorithm Selection with Dyadic Feature Representation ER - TY - CONF AU - Hanselle, Jonas Manuel AU - Tornede, Alexander AU - Wever, Marcel Dominik AU - Hüllermeier, Eyke ID - 17408 T2 - KI 2020: Advances in Artificial Intelligence TI - Hybrid Ranking and Regression for Algorithm Selection ER - TY - CHAP AB - 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. AU - Flaßkamp, Kathrin AU - Ober-Blöbaum, Sina AU - Peitz, Sebastian ED - Junge, Oliver ED - Schütze, Oliver ED - Froyland, Gary ED - Ober-Blöbaum, Sina ED - Padberg-Gehle, Kathrin ID - 17411 SN - 2198-4182 T2 - Advances in Dynamics, Optimization and Computation TI - Symmetry in Optimal Control: A Multiobjective Model Predictive Control Approach ER - TY - CONF AU - Tornede, Tanja AU - Tornede, Alexander AU - Wever, Marcel Dominik AU - Mohr, Felix AU - Hüllermeier, Eyke ID - 17424 T2 - Proceedings of the ECMLPKDD 2020 TI - AutoML for Predictive Maintenance: One Tool to RUL Them All ER - TY - JOUR AB - 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. AU - Hoffmann, Martin W. AU - Wildermuth, Stephan AU - Gitzel, Ralf AU - Boyaci, Aydin AU - Gebhardt, Jörg AU - Kaul, Holger AU - Amihai, Ido AU - Forg, Bodo AU - Suriyah, Michael AU - Leibfried, Thomas AU - Stich, Volker AU - Hicking, Jan AU - Bremer, Martin AU - Kaminski, Lars AU - Beverungen, Daniel AU - zur Heiden, Philipp AU - Tornede, Tanja ID - 17426 JF - Sensors SN - 1424-8220 TI - Integration of Novel Sensors and Machine Learning for Predictive Maintenance in Medium Voltage Switchgear to Enable the Energy and Mobility Revolutions ER - TY - JOUR AU - Wang, D. Q. AU - Reuter, Dirk AU - Wieck, A. D. AU - Hamilton, A. R. AU - Klochan, O. ID - 17433 JF - Applied Physics Letters SN - 0003-6951 TI - Two-dimensional lateral surface superlattices in GaAs heterostructures with independent control of carrier density and modulation potential ER - TY - JOUR AU - Kunnathully, Vinay S. AU - Riedl, Thomas AU - Trapp, Alexander AU - Langer, Timo AU - Reuter, Dirk AU - Lindner, Jörg K.N. ID - 17434 JF - Journal of Crystal Growth SN - 0022-0248 TI - InAs heteroepitaxy on nanopillar-patterned GaAs (111)A ER - TY - JOUR AU - Geier, M. AU - Freudenfeld, J. AU - Silva, J. T. AU - Umansky, V. AU - Reuter, Dirk AU - Wieck, A. D. AU - Brouwer, P. W. AU - Ludwig, S. ID - 17435 JF - Physical Review B SN - 2469-9950 TI - Electrostatic potential shape of gate-defined quantum point contacts ER - TY - JOUR AB - 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. AU - Javaid Iqbal, Muhammad AU - Reuter, Dirk AU - Wieck, Andreas Dirk AU - van der Wal, Caspar ID - 17436 JF - The European Physical Journal Applied Physics SN - 1286-0042 TI - Characterization of low-resistance ohmic contacts to a two-dimensional electron gas in a GaAs/AlGaAs heterostructure ER - TY - JOUR AU - Ebler, C. AU - Labud, P. A. AU - Rai, A. K. AU - Reuter, Dirk AU - Wieck, A. D. AU - Ludwig, A. ID - 17437 JF - Physical Review B SN - 2469-9950 TI - Electrical detection of excitonic states by time-resolved conductance measurements ER - TY - JOUR AB - 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. AU - Zhu, Lingxiao AU - Liu, Xuan AU - Sain, Basudeb AU - Wang, Mengyao AU - Schlickriede, Christian AU - Tang, Yutao AU - Deng, Junhong AU - Li, Kingfai AU - Yang, Jun AU - Holynski, Michael AU - Zhang, Shuang AU - Zentgraf, Thomas AU - Bongs, Kai AU - Lien, Yu-Hung AU - Li, Guixin ID - 17523 IS - 31 JF - Science Advances SN - 2375-2548 TI - A dielectric metasurface optical chip for the generation of cold atoms VL - 6 ER - TY - JOUR AU - Schweizer, Swetlana AU - Becker-Staines, Anna AU - Tröster, Thomas ID - 17578 JF - Waste Management SN - 0956-053X TI - Separation and reclamation of automotive hybrid structures made of metal and fibre-reinforced plastic ER - TY - JOUR AU - Sonnenrein, G. AU - Baumhögger, Elmar AU - Elsner, A. AU - Morbach, A. AU - Neukötter, M. AU - Paul, A. AU - Vrabec, J. ID - 17589 JF - International Journal of Refrigeration SN - 0140-7007 TI - 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 ER - TY - GEN AB - 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. AU - Heid, Stefan Helmut AU - Wever, Marcel Dominik AU - Hüllermeier, Eyke ID - 17605 T2 - Journal of Data Mining and Digital Humanities TI - Reliable Part-of-Speech Tagging of Historical Corpora through Set-Valued Prediction ER - TY - GEN AB - 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. AU - Wengerek, Sascha Tobias ID - 17703 KW - event study KW - international relations KW - protectionism KW - strategic trade policy KW - tariffs KW - trade conflict TI - Share price reactions to tariff imposition announcements in the Trump era - An event study of the trade conflict ER - TY - JOUR AU - Ortmann, Regina AU - Pelster, Matthias AU - Wengerek, Sascha Tobias ID - 17730 JF - Finance Research Letters SN - 1544-6123 TI - COVID-19 and investor behavior VL - 37 ER -