TY - JOUR AB - AbstractIncreasing average temperatures and heat waves are having devasting impacts on human health and well-being but studies of heat impacts and how people adapt are rare and often confined to specific locations. In this study, we explore how analysis of conversations on social media can be used to understand how people feel about heat waves and how they respond. We collected global Twitter data over four months (from January to April 2022) using predefined hashtags about heat waves. Topic modelling identified five topics. The largest (one-third of all tweets) was related to sports events. The remaining two-thirds could be allocated to four topics connected to communication about climate-related heat or heat waves. Two of these were on the impacts of heat and heat waves (health impacts 20%; social impacts 16%), one was on extreme weather and climate change attribution (17%) and the last one was on perceptions and warning (13%). The number of tweets in each week corresponded well with major heat wave occurrences in Argentina, Australia, the USA and South Asia (India and Pakistan), indicating that people posting tweets were aware of the threat from heat and its impacts on the society. Among the words frequently used within the topic ‘Social impacts’ were ‘air-conditioning’ and ‘electricity’, suggesting links between coping strategies and financial pressure. Apart from analysing the content of tweets, new insights were also obtained from analysing how people engaged with Twitter tweets about heat or heat waves. We found that tweets posted early, and which were then shared by other influential Twitter users, were among the most popular. Finally, we found that the most popular tweets belonged to individual scientists or respected news outlets, with no evidence that misinformation about climate change-related heat is widespread. AU - Zander, Kerstin K. AU - Rieskamp, Jonas AU - Mirbabaie, Milad AU - Alazab, Mamoun AU - Nguyen, Duy ID - 36834 JF - Natural Hazards KW - Earth and Planetary Sciences (miscellaneous) KW - Atmospheric Science KW - Water Science and Technology SN - 0921-030X TI - Responses to heat waves: what can Twitter data tell us? ER - TY - JOUR AB - The study explores differences between three user types in the top tweets about the 2015 “refugee crisis” in Germany and presents the results of a quantitative content analysis. All tweets with the keyword “Flüchtlinge” posted for a monthlong period following September 13, 2015, the day Germany decided to implement border controls, were collected (N = 763,752). The top 2,495 tweets according to number of retweets were selected for analysis. Differences between news media, public and private actor tweets in topics, tweet characteristics such as tone and opinion expression, links, and specific sentiments toward refugees were analyzed. We found strong differences between the tweets. Public actor tweets were the main source of positive sentiment toward refugees and the main information source on refugee support. News media tweets mostly reflected traditional journalistic norms of impartiality and objectivity, whereas private actor tweets were more diverse in sentiments toward refugees. AU - Kapidzic, Sanja AU - Frey, Felix AU - Neuberger, Christoph AU - Stieglitz, Stefan AU - Mirbabaie, Milad ID - 36877 JF - International Journal of Communication KW - refugee crisis 2015 KW - Germany KW - social media KW - Twitter KW - user types SN - 1932-8036 TI - Crisis Communication on Twitter: Differences Between User Types in Top Tweets About the 2015 “Refugee Crisis” in Germany VL - 17 ER - TY - JOUR AB - Abstract. The miniaturisation of components leads to new demands on measurement systems. One of these is the resolution. As a volumetric analysis method and method of non-destructive testing, industrial X-ray computed tomography (XCT) has the ability to measure geometrical features and their corresponding dimensions without destroying them and can therefore be used for quality assurance. However, the concept of resolution is not trivial for XCT and has not yet been finally clarified. In particular, the interface structural resolution, the detectability of two surfaces facing each other after surface segmentation, faces a lack of a test specimen, a corresponding measurand and a reliable method. Simulation-based XCT investigations of a method to determine this type of resolution are presented in this article using the geometry of a test specimen that contains several radially arranged holes of the same size. The borehole diameters correspond to the distance between the holes to investigate the resolvability of surfaces and interfaces. The evaluation is based on mean and extreme values of grey value profiles between the individual boreholes of the reconstructed volume. It is shown that the geometrical detectability of the test specimen surface and interface can be extended by a reasonable choice of the threshold value for surface segmentation within a defined interval. With regard to the resolving capability, a distinction is made between assured detectability and possible detectability, as well as the threshold value used when using the ISO50 threshold for surface segmentation and measurement chain completion. AU - Busch, Matthias AU - Hausotte, Tino ID - 36800 IS - 1 JF - Journal of Sensors and Sensor Systems KW - Electrical and Electronic Engineering KW - Instrumentation SN - 2194-878X TI - Simulation-based investigation of the metrological interface structural resolution capability of X-ray computed tomography scanners VL - 12 ER - TY - CONF AU - zur Heiden, Philipp AU - Priefer, Jennifer AU - Beverungen, Daniel ID - 35893 T2 - Proceedings of the 56th Conference on System Sciences TI - Location-Based Service and Location-Contextualizing Service: Conceptualizing the Co-creation of Value with Location Information ER - TY - CONF AU - Neumann, Stefan AU - Meschut, Gerson AU - Otroshi, Mortaza AU - Kneuper, Florian AU - Schulze, Andre AU - Tekkaya, Erman ID - 36839 TI - Mechanically Joined Extrusion Profiles for Battery Trays ER - TY - CHAP AU - Liebendörfer, Michael AU - Büdenbender-Kuklinski, Christiane AU - Lankeit, Elisa AU - Schürmann, Mirko AU - Biehler, Rolf AU - Schaper, Niclas ID - 35681 SN - 1869-4918 T2 - Practice-Oriented Research in Tertiary Mathematics Education TI - Framing Goals of Mathematics Support Measures ER - TY - CONF AU - Hofeditz, Lennart AU - Erle, Lukas AU - Timm, Lara AU - Mirbabaie, Milad ID - 37165 T2 - Proceedings of the 55th Hawaii International Conference System Sciences (HICSS) (forthcoming) TI - How Virtuous are Virtual Influencers?–A Qualitative Analysis of Virtual Actors’ Virtues on Instagram ER - TY - JOUR AU - Julin, Sofia AU - Keller, Adrian AU - Linko, Veikko ID - 33447 JF - Bioconjugate Chemistry KW - Organic Chemistry KW - Pharmaceutical Science KW - Pharmacology KW - Biomedical Engineering KW - Bioengineering KW - Biotechnology SN - 1043-1802 TI - Dynamics of DNA Origami Lattices VL - 34 ER - TY - BOOK ED - Biehler, Rolf ED - Liebendörfer, Michael ED - Gueudet, Ghislaine ED - Rasmussen, Chris ED - Winsløw, Carl ID - 37469 SN - 1869-4918 TI - Practice-Oriented Research in Tertiary Mathematics Education ER - TY - CONF AB - Since historical times, cartographic maps have revealed spatial relations and enabled decisions and processes. Geographic Information Systems (GIS) allow for acquisition, management, analysis, and presentation of geospatial objects. With free geospatial data becoming available through open data policies and an increasing amount of digitally connected objects in the Internet of Things (IoT), GIS are becoming indispensable to Information Systems (IS) research. However, the consideration and relevance of GIS has only been investigated rarely. We examine, how and in which fields of application GIS have been studied in the IS literature and elicit the importance of GIS regarding their design and usage. A systematic literature review leads us to develop four research propositions. Our results indicate that GIS are still an undeservedly underrepresented discipline in IS and should be more theorized, put center-stage in design-oriented research, and considered for creating superior value co-creation in service systems. AU - Priefer, Jennifer ED - Bui, T.X. ED - Sprague, R.H. ID - 37497 KW - GIS KW - Industry 4.0 KW - and Sustainability KW - geographic information systems KW - geospatial data KW - gis KW - information systems research KW - literature review T2 - Proceedings of the 56th Hawaii International Conference on System Sciences TI - Geographic Information Systems in Information Systems Research - Review and Research Prospects ER - TY - CONF AU - Schrader, Elena AU - Bernijazov, Ruslan AU - Foullois, Marc AU - Hillebrand, Michael AU - Kaiser, Lydia AU - Dumitrescu, Roman ID - 37553 T2 - 2022 IEEE International Symposium on Systems Engineering (ISSE) TI - Examples of AI-based Assistance Systems in context of Model-Based Systems Engineering ER - TY - CONF AU - Richter, Cedric AU - Haltermann, Jan Frederik AU - Jakobs, Marie-Christine AU - Pauck, Felix AU - Schott, Stefan AU - Wehrheim, Heike ID - 35426 T2 - 37th IEEE/ACM International Conference on Automated Software Engineering TI - Are Neural Bug Detectors Comparable to Software Developers on Variable Misuse Bugs? ER - TY - CONF AU - Schott, Stefan AU - Pauck, Felix ID - 36848 T2 - 2022 IEEE 22nd International Working Conference on Source Code Analysis and Manipulation (SCAM) TI - Benchmark Fuzzing for Android Taint Analyses ER - TY - CONF AU - Pauck, Felix ID - 35427 T2 - 37th IEEE/ACM International Conference on Automated Software Engineering TI - Scaling Arbitrary Android App Analyses ER - TY - JOUR AB - Chemical phenomena are only observable on a macroscopic level, whereas they are explained by entities on a non-visible level. Students often demonstrate limited ability to link these different levels. Augmented reality (AR) offers the possibility to increase contiguity by embedding virtual models into hands-on experiments. Therefore, this paper presents a pre- and post-test study investigating how learning and cognitive load are influenced by AR during hands-on experiments. Three comparison groups (AR, animation and filmstrip), with a total of N = 104 German secondary school students, conducted and explained two hands-on experiments. Whereas the AR group was allowed to use an AR app showing virtual models of the processes on the submicroscopic level during the experiments, the two other groups were provided with the same dynamic or static models after experimenting. Results indicate no significant learning gain for the AR group in contrast to the two other groups. The perceived intrinsic cognitive load was higher for the AR group in both experiments as well as the extraneous load in the second experiment. It can be concluded that AR could not unleash its theoretically derived potential in the present study. AU - Peeters, Hendrik AU - Habig, Sebastian AU - Fechner, Sabine ID - 37613 IS - 2 JF - Multimodal Technologies and Interaction KW - augmented reality KW - chemistry education KW - models KW - experiment KW - cognitive load SN - 2414-4088 TI - Does Augmented Reality Help to Understand Chemical Phenomena during Hands-On Experiments?–Implications for Cognitive Load and Learning VL - 7 ER - TY - CONF AU - Hoya, Fabian Karl AU - Schulze, Jan Roland AU - Blumberg, Eva AU - Hellmich, Frank ID - 35892 TI - Effekte des Feedbacks von Lehrkräften auf die Selbstwirksamkeitsüberzeugungen und die intrinsische Motivation von Kindern im naturwissenschaftlichen Sachunterricht der Grundschule. Vortrag auf der 10. Tagung der Gesellschaft für Empirische Bildungsforschung (GEBF). Thema: „Bildung zwischen Unsicherheit und Evidenz“ ER - TY - THES AU - Kröker, Michael ID - 37640 TI - Experimentelle und modellbasierte Untersuchungen zum Prozessverhalten von teilkristallinen Materialien im Spritzgießsonderverfahren GITBlow ER - TY - THES AB - Für den Erwerb fachmethodischer Fähigkeiten stellen Laborpraktika eine zentrale Lerngelegenheiten des Physikstudiums dar. Trotz ihrer hohen Bedeutung fehlt ein hochschulfachdidaktischer Diskurs zu einer lehr-lerntheoretischen Fundierung. Zudem wird ihre Lernwirksamkeit aufgrund der bestehenden didaktischen Gestaltung kritisiert. Die weit verbreiteten engmaschigen Aufgabenstellungen enthalten keine Anreize zur tiefergehenden Auseinandersetzung mit den Inhalten. Um der Diskrepanz zwischen den Zielsetzungen und den von den Lernenden erworbenen Fähigkeiten entgegenzuwirken, liegen aktuell nur wenige und zudem nur punktuelle Grundlagen für eine evidenzbasierte Überarbeitung dieses Veranstaltungsformates vor. Ziel dieser Arbeit ist daher, einen Vorschlag für ein performanzorientiertes Kompetenzstrukturmodell auf universitärem Niveau zu entwickeln, das die Inhaltsbereiche, die experimentellen Fähigkeiten und Fertigkeiten sowie die Qualitätsausprägungen experimenteller Handlungen systematisiert.Die Modellierung ist auf Basis der Analyse videografierter experimenteller Performanz von 16 unterschiedlich fähigen Proband:innen realisiert worden. Für die Entwicklung der Dimensionen Fachmethodik und Qualitätsausprägung werden unter Nutzung der qualitativen Forschungsansätze Dokumentarische Methode und Typenbildung die charakteristischen Merkmale universitären Experimentierens identifiziert und anschließend systematisiert. Zur Prüfung der Passung des Modells zur Perspektive der Wissenschaft Physik ist ein Interrating mit einem Fachwissenschaftler durchgeführt worden, das sehr gute Übereinstimmungswerte liefert. Die Passung des Modells zur Perspektive der Praktikumsleiter:innen ist durch ein Expertenrating erfolgt. Ein Rangfolgen-Vergleich zeigt hohe Übereinstimmungswerte. AU - Bauer, Anna Brigitte ID - 37645 TI - Experimentelle Kompetenz Physikstudierender ER - TY - CONF AU - Ksouri-Gerwien, C. AU - Vorbohle, Christian ID - 33488 T2 - Proceedings of the 55th Hawaii International Conference on System Sciences (HICSS) TI - Supporting Business Model Decision-making in B2B Ecosystems: A Framework for Using System Dynamics ER - TY - CHAP AU - Öhlschläger, Claudia ED - Borsò, Vittorià ED - Schahadat, Schamma ID - 37722 T2 - Grundthemen der Literaturwissenschaft: Weltliteratur. TI - Literaturen vom 19. bis zum 21. Jahrhundert (thematische, ästhetische, mediale Transformationen hin zu einer technologisch aufgerüsteten Weltkommunikation) VL - 8 ER -