[{"date_created":"2025-09-16T13:55:52Z","publisher":"Association for Information Systems (AIS), IEEE Computer Society Press, University of Hawaii (Manoa)","title":"From Engineering to Shaping: A Multiple Case Study on Advancing Service Systems Engineering through Continuous Value Shaping","quality_controlled":"1","year":"2026","language":[{"iso":"eng"}],"keyword":["Continuous Value Shaping","Service Systems Engineering","Service Science","Public Sector","Service Innovation"],"publication":"Proceedings of the 59th Hawaii International Conference on System Sciences (HICSS 2026)","abstract":[{"lang":"eng","text":"Service systems engineering relies on structured, top-down approaches to designing and\r\ninnovating service systems. In today’s dynamic environments—shaped by digital transformation,\r\nevolving provider–user interactions, and shifting societal demands—these approaches face limitations in enabling continuous, context-sensitive innovation. Continuous Value Shaping emerges as a conceptual extension to service systems engineering, promoting more adaptive and co-evolutionary forms of service system development. This study examines how Continuous Value Shaping manifests through a multiple case study of three public sector projects. We identify distinct manifestations and constellations of the concept’s principles that complement classical\r\nSSE practices. As the first empirical exploration of Continuous Value Shaping, the study refines its\r\nconceptual foundation and enhances its accessibility for researchers and practitioners. We conclude with seven empirically derived propositions that inform future service systems engineering initiatives and demonstrate how Continuous Value Shaping supports the dynamic alignment of service systems with societal and systemic demands."}],"author":[{"first_name":"Jannika Marie","id":"74374","full_name":"Schäfer, Jannika Marie","last_name":"Schäfer"},{"full_name":"Rajko, Polina","last_name":"Rajko","first_name":"Polina"},{"full_name":"Angelova, Daniela","last_name":"Angelova","first_name":"Daniela"},{"full_name":"Böhmann, Tilo","last_name":"Böhmann","first_name":"Tilo"}],"date_updated":"2026-02-05T06:57:02Z","conference":{"location":"Maui, Maui, Hawaii, USA","end_date":"2026-01-09","start_date":"2026-01-06","name":"59th Hawaii International Conference on System Sciences (HICSS 2026)"},"publication_status":"published","citation":{"chicago":"Schäfer, Jannika Marie, Polina Rajko, Daniela Angelova, and Tilo Böhmann. “From Engineering to Shaping: A Multiple Case Study on Advancing Service Systems Engineering through Continuous Value Shaping.” In <i>Proceedings of the 59th Hawaii International Conference on System Sciences (HICSS 2026)</i>. Maui, Hawaii, USA: Association for Information Systems (AIS), IEEE Computer Society Press, University of Hawaii (Manoa), 2026.","ieee":"J. M. Schäfer, P. Rajko, D. Angelova, and T. Böhmann, “From Engineering to Shaping: A Multiple Case Study on Advancing Service Systems Engineering through Continuous Value Shaping,” presented at the 59th Hawaii International Conference on System Sciences (HICSS 2026), Maui, Maui, Hawaii, USA, 2026.","ama":"Schäfer JM, Rajko P, Angelova D, Böhmann T. From Engineering to Shaping: A Multiple Case Study on Advancing Service Systems Engineering through Continuous Value Shaping. In: <i>Proceedings of the 59th Hawaii International Conference on System Sciences (HICSS 2026)</i>. Association for Information Systems (AIS), IEEE Computer Society Press, University of Hawaii (Manoa); 2026.","bibtex":"@inproceedings{Schäfer_Rajko_Angelova_Böhmann_2026, place={Maui, Hawaii, USA}, title={From Engineering to Shaping: A Multiple Case Study on Advancing Service Systems Engineering through Continuous Value Shaping}, booktitle={Proceedings of the 59th Hawaii International Conference on System Sciences (HICSS 2026)}, publisher={Association for Information Systems (AIS), IEEE Computer Society Press, University of Hawaii (Manoa)}, author={Schäfer, Jannika Marie and Rajko, Polina and Angelova, Daniela and Böhmann, Tilo}, year={2026} }","mla":"Schäfer, Jannika Marie, et al. “From Engineering to Shaping: A Multiple Case Study on Advancing Service Systems Engineering through Continuous Value Shaping.” <i>Proceedings of the 59th Hawaii International Conference on System Sciences (HICSS 2026)</i>, Association for Information Systems (AIS), IEEE Computer Society Press, University of Hawaii (Manoa), 2026.","short":"J.M. Schäfer, P. Rajko, D. Angelova, T. Böhmann, in: Proceedings of the 59th Hawaii International Conference on System Sciences (HICSS 2026), Association for Information Systems (AIS), IEEE Computer Society Press, University of Hawaii (Manoa), Maui, Hawaii, USA, 2026.","apa":"Schäfer, J. M., Rajko, P., Angelova, D., &#38; Böhmann, T. (2026). From Engineering to Shaping: A Multiple Case Study on Advancing Service Systems Engineering through Continuous Value Shaping. <i>Proceedings of the 59th Hawaii International Conference on System Sciences (HICSS 2026)</i>. 59th Hawaii International Conference on System Sciences (HICSS 2026), Maui, Maui, Hawaii, USA."},"jel":["M15"],"place":"Maui, Hawaii, USA","department":[{"_id":"195"}],"user_id":"74374","_id":"61310","project":[{"_id":"1250","name":"SHAPE : Gestaltung von Dienstleistungsentwicklungsprozessen und lnnovationspartnerschaften mit Unternehmen"}],"type":"conference","status":"public"},{"publication_status":"published","intvolume":"        16","citation":{"apa":"Peters, T. M., &#38; Scharlau, I. (2025). Interacting with fallible AI: Is distrust helpful when receiving AI misclassifications? <i>Frontiers in Psychology</i>, <i>16</i>. <a href=\"https://doi.org/10.3389/fpsyg.2025.1574809\">https://doi.org/10.3389/fpsyg.2025.1574809</a>","mla":"Peters, Tobias Martin, and Ingrid Scharlau. “Interacting with Fallible AI: Is Distrust Helpful When Receiving AI Misclassifications?” <i>Frontiers in Psychology</i>, vol. 16, 2025, doi:<a href=\"https://doi.org/10.3389/fpsyg.2025.1574809\">10.3389/fpsyg.2025.1574809</a>.","short":"T.M. Peters, I. Scharlau, Frontiers in Psychology 16 (2025).","bibtex":"@article{Peters_Scharlau_2025, title={Interacting with fallible AI: Is distrust helpful when receiving AI misclassifications?}, volume={16}, DOI={<a href=\"https://doi.org/10.3389/fpsyg.2025.1574809\">10.3389/fpsyg.2025.1574809</a>}, journal={Frontiers in Psychology}, author={Peters, Tobias Martin and Scharlau, Ingrid}, year={2025} }","ieee":"T. M. Peters and I. Scharlau, “Interacting with fallible AI: Is distrust helpful when receiving AI misclassifications?,” <i>Frontiers in Psychology</i>, vol. 16, 2025, doi: <a href=\"https://doi.org/10.3389/fpsyg.2025.1574809\">10.3389/fpsyg.2025.1574809</a>.","chicago":"Peters, Tobias Martin, and Ingrid Scharlau. “Interacting with Fallible AI: Is Distrust Helpful When Receiving AI Misclassifications?” <i>Frontiers in Psychology</i> 16 (2025). <a href=\"https://doi.org/10.3389/fpsyg.2025.1574809\">https://doi.org/10.3389/fpsyg.2025.1574809</a>.","ama":"Peters TM, Scharlau I. Interacting with fallible AI: Is distrust helpful when receiving AI misclassifications? <i>Frontiers in Psychology</i>. 2025;16. doi:<a href=\"https://doi.org/10.3389/fpsyg.2025.1574809\">10.3389/fpsyg.2025.1574809</a>"},"year":"2025","volume":16,"date_created":"2025-05-02T09:22:39Z","author":[{"first_name":"Tobias Martin","orcid":"0009-0008-5193-6243","last_name":"Peters","id":"92810","full_name":"Peters, Tobias Martin"},{"first_name":"Ingrid","last_name":"Scharlau","orcid":"0000-0003-2364-9489","id":"451","full_name":"Scharlau, Ingrid"}],"date_updated":"2025-05-27T09:10:09Z","doi":"10.3389/fpsyg.2025.1574809","title":"Interacting with fallible AI: Is distrust helpful when receiving AI misclassifications?","publication":"Frontiers in Psychology","type":"journal_article","status":"public","abstract":[{"text":"Due to the application of Artificial Intelligence (AI) in high-risk domains like law or medicine,\r\ntrustworthy AI and trust in AI are of increasing scientific and public relevance. A typical conception,\r\nfor example in the context of medical diagnosis, is that a knowledgeable user receives AIgenerated\r\nclassification as advice. Research to improve such interactions often aims to foster the\r\nuser’s trust, which in turn should improve the combined human-AI performance. Given that AI\r\nmodels can err, we argue that the possibility to critically review, thus to distrust, an AI decision is\r\nan equally interesting target of research.\r\nWe created two image classification scenarios in which the participants received mock-up\r\nAI advice. The quality of the advice decreases for a phase of the experiment. We studied the\r\ntask performance, trust and distrust of the participants, and tested whether an instruction to\r\nremain skeptical and review each piece of advice led to a better performance compared to a\r\nneutral condition. Our results indicate that this instruction does not improve but rather worsens\r\nthe participants’ performance. Repeated single-item self-report of trust and distrust shows an\r\nincrease in trust and a decrease in distrust after the drop in the AI’s classification quality, with no\r\ndifference between the two instructions. Furthermore, via a Bayesian Signal Detection Theory\r\nanalysis, we provide a procedure to assess appropriate reliance in detail, by quantifying whether\r\nthe problems of under- and over-reliance have been mitigated. We discuss implications of our\r\nresults for the usage of disclaimers before interacting with AI, as prominently used in current\r\nLLM-based chatbots, and for trust and distrust research.","lang":"eng"}],"department":[{"_id":"424"},{"_id":"660"}],"user_id":"92810","_id":"59755","project":[{"name":"TRR 318 - C1: TRR 318 - Subproject C1 - Gesundes Misstrauen in Erklärungen","_id":"124"}],"language":[{"iso":"eng"}],"keyword":["trust in AI","trust","distrust","human-AI interaction","Signal Detection Theory","Bayesian parameter estimation","image classification"],"article_type":"original"},{"doi":"10.1002/batt.202500516","title":"Long-Term Cycling Stability of Sodium/Sodium Ion Cells Probed by In Situ Solid-State NMR Spectroscopy","date_created":"2026-02-07T09:13:59Z","author":[{"last_name":"Egert","full_name":"Egert, Sonja","first_name":"Sonja"},{"first_name":"Renuka","last_name":"Remesh","full_name":"Remesh, Renuka"},{"first_name":"Agatha Clarissa","last_name":"Jusdi","full_name":"Jusdi, Agatha Clarissa"},{"first_name":"Yushi","last_name":"Sugawara","full_name":"Sugawara, Yushi"},{"first_name":"Konstantin","full_name":"Schutjajew, Konstantin","last_name":"Schutjajew"},{"full_name":"Oschatz, Martin","last_name":"Oschatz","first_name":"Martin"},{"full_name":"Buntkowsky, Gerd","last_name":"Buntkowsky","first_name":"Gerd"},{"first_name":"Torsten","last_name":"Gutmann","id":"118165","full_name":"Gutmann, Torsten"}],"volume":"n/a","publisher":"John Wiley & Sons, Ltd","date_updated":"2026-02-17T16:18:23Z","citation":{"ama":"Egert S, Remesh R, Jusdi AC, et al. Long-Term Cycling Stability of Sodium/Sodium Ion Cells Probed by In Situ Solid-State NMR Spectroscopy. <i>Batteries &#38; Supercaps</i>. 2025;n/a(n/a):e202500516. doi:<a href=\"https://doi.org/10.1002/batt.202500516\">10.1002/batt.202500516</a>","chicago":"Egert, Sonja, Renuka Remesh, Agatha Clarissa Jusdi, Yushi Sugawara, Konstantin Schutjajew, Martin Oschatz, Gerd Buntkowsky, and Torsten Gutmann. “Long-Term Cycling Stability of Sodium/Sodium Ion Cells Probed by In Situ Solid-State NMR Spectroscopy.” <i>Batteries &#38; Supercaps</i> n/a, no. n/a (2025): e202500516. <a href=\"https://doi.org/10.1002/batt.202500516\">https://doi.org/10.1002/batt.202500516</a>.","ieee":"S. Egert <i>et al.</i>, “Long-Term Cycling Stability of Sodium/Sodium Ion Cells Probed by In Situ Solid-State NMR Spectroscopy,” <i>Batteries &#38; Supercaps</i>, vol. n/a, no. n/a, p. e202500516, 2025, doi: <a href=\"https://doi.org/10.1002/batt.202500516\">10.1002/batt.202500516</a>.","mla":"Egert, Sonja, et al. “Long-Term Cycling Stability of Sodium/Sodium Ion Cells Probed by In Situ Solid-State NMR Spectroscopy.” <i>Batteries &#38; Supercaps</i>, vol. n/a, no. n/a, John Wiley &#38; Sons, Ltd, 2025, p. e202500516, doi:<a href=\"https://doi.org/10.1002/batt.202500516\">10.1002/batt.202500516</a>.","short":"S. Egert, R. Remesh, A.C. Jusdi, Y. Sugawara, K. Schutjajew, M. Oschatz, G. Buntkowsky, T. Gutmann, Batteries &#38; Supercaps n/a (2025) e202500516.","bibtex":"@article{Egert_Remesh_Jusdi_Sugawara_Schutjajew_Oschatz_Buntkowsky_Gutmann_2025, title={Long-Term Cycling Stability of Sodium/Sodium Ion Cells Probed by In Situ Solid-State NMR Spectroscopy}, volume={n/a}, DOI={<a href=\"https://doi.org/10.1002/batt.202500516\">10.1002/batt.202500516</a>}, number={n/a}, journal={Batteries &#38; Supercaps}, publisher={John Wiley &#38; Sons, Ltd}, author={Egert, Sonja and Remesh, Renuka and Jusdi, Agatha Clarissa and Sugawara, Yushi and Schutjajew, Konstantin and Oschatz, Martin and Buntkowsky, Gerd and Gutmann, Torsten}, year={2025}, pages={e202500516} }","apa":"Egert, S., Remesh, R., Jusdi, A. C., Sugawara, Y., Schutjajew, K., Oschatz, M., Buntkowsky, G., &#38; Gutmann, T. (2025). Long-Term Cycling Stability of Sodium/Sodium Ion Cells Probed by In Situ Solid-State NMR Spectroscopy. <i>Batteries &#38; Supercaps</i>, <i>n/a</i>(n/a), e202500516. <a href=\"https://doi.org/10.1002/batt.202500516\">https://doi.org/10.1002/batt.202500516</a>"},"page":"e202500516","year":"2025","issue":"n/a","extern":"1","language":[{"iso":"eng"}],"keyword":["solid-state nmr","hard carbon","in-situ","SiCN","sodium ion batteries"],"user_id":"100715","_id":"63950","status":"public","abstract":[{"text":"Sodium-ion batteries are at the forefront of new, sustainable energy systems required for the global energy transition. 23Na in situ solid-state nuclear magnetic resonance spectroscopy is capable of unraveling structures in working electrochemical cells during the charging and discharging processes. To evaluate its suitability for long-term studies, local sodium environments in sodium/sodium ion cells based on silicon carbonitride and hard carbon materials are tracked for up to 49 cycles (228.5?h). The formation of dendrites as well as the decay of a secondary metallic sodium species is observed, and local structures are analyzed up to the point of capacity degradation and cell failure. Initial points of cell breakdown are reflected in the NMR data by characteristic changes in signal intensities, whereas the degradation of the cells is reflected by a cease to periodic signal intensity fluctuations. Meanwhile, ex situ 23Na NMR spectra of the deactivated cells reveal a complex range of environments for sodium ions.","lang":"eng"}],"type":"journal_article","publication":"Batteries & Supercaps"},{"publication_status":"published","has_accepted_license":"1","publication_identifier":{"isbn":["978-3-88355-454-9"]},"citation":{"ama":"Dargel A, Köhler D, Gude M, Kupfer R. In situ CT unter Temperatur: Thermokammer für thermoplastische FKV-Fügeprozesse. In: Zimmermann M, ed. <i>Tagungsband 43. Vortrags- und Diskussionstagung Werkstoffprüfung 2025</i>. Vol 43. Deutsche Gesellschaft für Materialkunde e.V. (DGM); 2025:165-170.","chicago":"Dargel, Alrik, Daniel Köhler, Maik Gude, and Robert Kupfer. “In situ CT unter Temperatur: Thermokammer für thermoplastische FKV-Fügeprozesse.” In <i>Tagungsband 43. Vortrags- und Diskussionstagung Werkstoffprüfung 2025</i>, edited by Martina Zimmermann, 43:165–70. Sankt Augustin: Deutsche Gesellschaft für Materialkunde e.V. (DGM), 2025.","ieee":"A. Dargel, D. Köhler, M. Gude, and R. Kupfer, “In situ CT unter Temperatur: Thermokammer für thermoplastische FKV-Fügeprozesse,” in <i>Tagungsband 43. Vortrags- und Diskussionstagung Werkstoffprüfung 2025</i>, Dresden, 2025, vol. 43, pp. 165–170.","bibtex":"@inproceedings{Dargel_Köhler_Gude_Kupfer_2025, place={Sankt Augustin}, title={In situ CT unter Temperatur: Thermokammer für thermoplastische FKV-Fügeprozesse}, volume={43}, booktitle={Tagungsband 43. Vortrags- und Diskussionstagung Werkstoffprüfung 2025}, publisher={Deutsche Gesellschaft für Materialkunde e.V. (DGM)}, author={Dargel, Alrik and Köhler, Daniel and Gude, Maik and Kupfer, Robert}, editor={Zimmermann, Martina}, year={2025}, pages={165–170} }","short":"A. Dargel, D. Köhler, M. Gude, R. Kupfer, in: M. Zimmermann (Ed.), Tagungsband 43. Vortrags- und Diskussionstagung Werkstoffprüfung 2025, Deutsche Gesellschaft für Materialkunde e.V. (DGM), Sankt Augustin, 2025, pp. 165–170.","mla":"Dargel, Alrik, et al. “In situ CT unter Temperatur: Thermokammer für thermoplastische FKV-Fügeprozesse.” <i>Tagungsband 43. Vortrags- und Diskussionstagung Werkstoffprüfung 2025</i>, edited by Martina Zimmermann, vol. 43, Deutsche Gesellschaft für Materialkunde e.V. (DGM), 2025, pp. 165–70.","apa":"Dargel, A., Köhler, D., Gude, M., &#38; Kupfer, R. (2025). In situ CT unter Temperatur: Thermokammer für thermoplastische FKV-Fügeprozesse. In M. Zimmermann (Ed.), <i>Tagungsband 43. Vortrags- und Diskussionstagung Werkstoffprüfung 2025</i> (Vol. 43, pp. 165–170). Deutsche Gesellschaft für Materialkunde e.V. (DGM)."},"intvolume":"        43","page":"165-170","place":"Sankt Augustin","author":[{"first_name":"Alrik","full_name":"Dargel, Alrik","id":"114764","last_name":"Dargel"},{"last_name":"Köhler","full_name":"Köhler, Daniel","id":"83408","first_name":"Daniel"},{"full_name":"Gude, Maik","last_name":"Gude","first_name":"Maik"},{"full_name":"Kupfer, Robert","last_name":"Kupfer","first_name":"Robert"}],"volume":43,"date_updated":"2026-02-24T15:12:59Z","conference":{"start_date":"2025-11-27","name":"43. Vortrags- und Diskussionstagung Werkstoffprüfung 2025","location":"Dresden","end_date":"2025-11-28"},"type":"conference","status":"public","editor":[{"first_name":"Martina","full_name":"Zimmermann, Martina","last_name":"Zimmermann"}],"user_id":"114764","project":[{"_id":"130","name":"TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten"},{"name":"TRR 285 - Subproject C04","_id":"148"}],"_id":"64562","file_date_updated":"2026-02-20T14:14:36Z","year":"2025","date_created":"2026-02-20T14:17:33Z","publisher":"Deutsche Gesellschaft für Materialkunde e.V. (DGM)","title":"In situ CT unter Temperatur: Thermokammer für thermoplastische FKV-Fügeprozesse","publication":"Tagungsband 43. Vortrags- und Diskussionstagung Werkstoffprüfung 2025","file":[{"success":1,"relation":"main_file","content_type":"application/pdf","file_size":398450,"access_level":"closed","file_name":"V-31-Dargel_v03.pdf","file_id":"64564","date_updated":"2026-02-20T14:14:36Z","date_created":"2026-02-20T14:14:36Z","creator":"adargel"}],"abstract":[{"lang":"ger","text":"Für das Verständnis und die Weiterentwicklung temperaturgestützter mechanischer Fü-geprozesse mit thermoplastischen Faser-Kunststoff-Verbunden (FKV) ist die zerstörungsfreie Analyse der Materialstruktur im Inneren des Fügepunktes während der Entstehung und Belastung erforderlich. Die Kombination aus Prüfung unter Temperatureinfluss und in situ Computertomographie (CT) eröffnet neue Möglichkeiten für die Fügeprozessanalyse. Dazu wurde dazu eine Thermokammer entwickelt und in eine bestehende in situ CT-Anlage integriert. Anwendungsszenarien sind die Herstellung und Prüfung von Fügepunkten unter Temperatur. Die Erwärmung erfolgt über einzeln regelbare Heizzonen, welche eine gezielte Temperaturführung über die gesamte Probengeometrie ermöglichen. Die Temperaturkurve eines Aufheizversuchs, sowie eine Röntgenprojektion einer Probe innerhalb der Thermokammer validie-ren die Konstruktion."}],"language":[{"iso":"ger"}],"ddc":["620"],"keyword":["in situ CT","Thermokammer","Thermoplastische FKV"]},{"abstract":[{"text":"Classical machine learning techniques often struggle with overfitting and unreliable predictions when exposed to novel conditions. Introducing causality into the modelling process offers a promising way to mitigate these challenges by enhancing predictive robustness. However, constructing an initial causal graph manually using domain knowledge is time-consuming, particularly in complex time series with numerous variables. To address this, causal discovery algorithms can provide a preliminary causal structure that domain experts can refine. This study investigates causal feature selection with domain knowledge using a data center system as an example. We use simulated time-series data to compare \r\ndifferent causal feature selection with traditional machine-learning feature selection methods. Our results show that predictions based on causal features are more robust compared to those derived from traditional methods. These findings underscore the potential of combining causal discovery algorithms with human expertise to improve machine learning applications.","lang":"eng"}],"status":"public","type":"conference","keyword":["Causal Machine Learning","Causality in Time Series","Causal Discovery","Human-Machine  Collaboration"],"language":[{"iso":"eng"}],"_id":"60680","user_id":"72849","department":[{"_id":"196"}],"year":"2025","citation":{"apa":"Zapata Gonzalez, D. R., Meyer, M., &#38; Müller, O. (2025). <i>Bridging the gap between data-driven and theory-driven modelling – leveraging causal machine learning for integrative modelling of dynamical systems</i>. European Conference on Information Systems, Amman, Jordan.","short":"D.R. Zapata Gonzalez, M. Meyer, O. Müller, in: 2025.","bibtex":"@inproceedings{Zapata Gonzalez_Meyer_Müller_2025, title={Bridging the gap between data-driven and theory-driven modelling – leveraging causal machine learning for integrative modelling of dynamical systems}, author={Zapata Gonzalez, David Ricardo and Meyer, Marcel and Müller, Oliver}, year={2025} }","mla":"Zapata Gonzalez, David Ricardo, et al. <i>Bridging the Gap between Data-Driven and Theory-Driven Modelling – Leveraging Causal Machine Learning for Integrative Modelling of Dynamical Systems</i>. 2025.","ama":"Zapata Gonzalez DR, Meyer M, Müller O. Bridging the gap between data-driven and theory-driven modelling – leveraging causal machine learning for integrative modelling of dynamical systems. In: ; 2025.","chicago":"Zapata Gonzalez, David Ricardo, Marcel Meyer, and Oliver Müller. “Bridging the Gap between Data-Driven and Theory-Driven Modelling – Leveraging Causal Machine Learning for Integrative Modelling of Dynamical Systems,” 2025.","ieee":"D. R. Zapata Gonzalez, M. Meyer, and O. Müller, “Bridging the gap between data-driven and theory-driven modelling – leveraging causal machine learning for integrative modelling of dynamical systems,” presented at the European Conference on Information Systems, Amman, Jordan, 2025."},"title":"Bridging the gap between data-driven and theory-driven modelling – leveraging causal machine learning for integrative modelling of dynamical systems","main_file_link":[{"url":"https://aisel.aisnet.org/ecis2025/bus_analytics/bus_analytics/2/"}],"conference":{"end_date":"18.06.2025","location":"Amman, Jordan","name":"European Conference on Information Systems","start_date":"16.06.2025"},"date_updated":"2025-07-22T06:30:37Z","author":[{"first_name":"David Ricardo","last_name":"Zapata Gonzalez","full_name":"Zapata Gonzalez, David Ricardo","id":"105506"},{"first_name":"Marcel","last_name":"Meyer","full_name":"Meyer, Marcel","id":"105120"},{"last_name":"Müller","full_name":"Müller, Oliver","id":"72849","first_name":"Oliver"}],"date_created":"2025-07-21T07:52:03Z"},{"file":[{"relation":"main_file","success":1,"content_type":"application/pdf","file_name":"frobt-12-1598968.pdf","access_level":"closed","file_id":"61331","file_size":36978223,"date_created":"2025-09-17T13:36:09Z","creator":"helebeen","date_updated":"2025-09-17T13:36:09Z"}],"abstract":[{"text":"This study contributes to the evolving field of robot learning in interaction\r\nwith humans, examining the impact of diverse input modalities on learning\r\noutcomes. It introduces the concept of \"meta-modalities\" which encapsulate\r\nadditional forms of feedback beyond the traditional preference and scalar\r\nfeedback mechanisms. Unlike prior research that focused on individual\r\nmeta-modalities, this work evaluates their combined effect on learning\r\noutcomes. Through a study with human participants, we explore user preferences\r\nfor these modalities and their impact on robot learning performance. Our\r\nfindings reveal that while individual modalities are perceived differently,\r\ntheir combination significantly improves learning behavior and usability. This\r\nresearch not only provides valuable insights into the optimization of\r\nhuman-robot interactive task learning but also opens new avenues for enhancing\r\nthe interactive freedom and scaffolding capabilities provided to users in such\r\nsettings.","lang":"eng"}],"publication":"Frontiers in Robotics and AI","language":[{"iso":"eng"}],"ddc":["004"],"keyword":["human-robot interaction","human-in-the-loop learning","reinforcement learning","interactive robot learning","multi-modal feedback","learning from demonstration","preference-based learning","scaffolding in robot learning"],"year":"2025","title":"The power of combined modalities in interactive robot learning","date_created":"2024-07-26T08:35:24Z","publisher":"Frontiers ","status":"public","type":"journal_article","file_date_updated":"2025-09-17T13:36:09Z","extern":"1","funded_apc":"1","article_type":"original","user_id":"50995","project":[{"name":"TRR 318 - B5: TRR 318 - Subproject B5","_id":"123"}],"_id":"55400","citation":{"ama":"Beierling H, Beierling R, Vollmer A-L. The power of combined modalities in interactive robot learning. <i>Frontiers in Robotics and AI</i>. 2025;12.","ieee":"H. Beierling, R. Beierling, and A.-L. Vollmer, “The power of combined modalities in interactive robot learning,” <i>Frontiers in Robotics and AI</i>, vol. 12, 2025.","chicago":"Beierling, Helen, Robin  Beierling, and Anna-Lisa Vollmer. “The Power of Combined Modalities in Interactive Robot Learning.” <i>Frontiers in Robotics and AI</i> 12 (2025).","apa":"Beierling, H., Beierling, R., &#38; Vollmer, A.-L. (2025). The power of combined modalities in interactive robot learning. <i>Frontiers in Robotics and AI</i>, <i>12</i>.","short":"H. Beierling, R. Beierling, A.-L. Vollmer, Frontiers in Robotics and AI 12 (2025).","mla":"Beierling, Helen, et al. “The Power of Combined Modalities in Interactive Robot Learning.” <i>Frontiers in Robotics and AI</i>, vol. 12, Frontiers , 2025.","bibtex":"@article{Beierling_Beierling_Vollmer_2025, title={The power of combined modalities in interactive robot learning}, volume={12}, journal={Frontiers in Robotics and AI}, publisher={Frontiers }, author={Beierling, Helen and Beierling, Robin  and Vollmer, Anna-Lisa}, year={2025} }"},"intvolume":"        12","publication_status":"published","has_accepted_license":"1","main_file_link":[{"url":"https://pmc.ncbi.nlm.nih.gov/articles/PMC12312635/","open_access":"1"}],"author":[{"first_name":"Helen","full_name":"Beierling, Helen","last_name":"Beierling"},{"first_name":"Robin ","full_name":"Beierling, Robin ","last_name":"Beierling"},{"last_name":"Vollmer","full_name":"Vollmer, Anna-Lisa","first_name":"Anna-Lisa"}],"volume":12,"oa":"1","date_updated":"2025-09-17T13:38:18Z"},{"language":[{"iso":"eng"}],"keyword":["Robot learning","Interactive learning systems","Human-robot interaction","Human-in-the-loop machine learning","Teaching and learning"],"article_type":"original","user_id":"50995","_id":"61327","project":[{"_id":"123","name":"TRR 318 - Subproject B5"}],"status":"public","abstract":[{"lang":"eng","text":"Robot learning from humans has been proposed and researched for several decades as a means to enable robots to learn new skills or\r\nadapt existing ones to new situations. Recent advances in artificial intelligence, including learning approaches like reinforcement\r\nlearning and architectures like transformers and foundation models, combined with access to massive datasets, has created attractive\r\nopportunities to apply those data-hungry techniques to this problem. We argue that the focus on massive amounts of pre-collected\r\ndata, and the resulting learning paradigm, where humans demonstrate and robots learn in isolation, is overshadowing a specialized\r\narea of work we term Human-Interactive-Robot-Learning (HIRL). This paradigm, wherein robots and humans interact during the\r\nlearning process, is at the intersection of multiple fields (artificial intelligence, robotics, human-computer interaction, design and others)\r\nand holds unique promise. Using HIRL, robots can achieve greater sample efficiency (as humans can provide task knowledge through\r\ninteraction), align with human preferences (as humans can guide the robot behavior towards their expectations), and explore more\r\nmeaningfully and safely (as humans can utilize domain knowledge to guide learning and prevent catastrophic failures). This can result\r\nin robotic systems that can more quickly and easily adapt to new tasks in human environments. The objective of this paper is to\r\nprovide a broad and consistent overview of HIRL research and to guide researchers toward understanding the scope of HIRL, and\r\ncurrent open or underexplored challenges related to four themes — namely, human, robot learning, interaction, and broader context.\r\nThe paper includes concrete use cases to illustrate the interaction between these challenges and inspire further research according to\r\nbroad recommendations and a call for action for the growing HIRL community"}],"publication":"Transactions on Human-Robot Interaction","type":"journal_article","title":"Human-Interactive Robot Learning: Definition, Challenges, and Recommendations","author":[{"last_name":"Baraka","full_name":"Baraka, Kim ","first_name":"Kim "},{"first_name":"Ifrah","last_name":"Idrees","full_name":"Idrees, Ifrah"},{"first_name":"Taylor Kessler","full_name":"Faulkner, Taylor Kessler","last_name":"Faulkner"},{"first_name":"Erdem","last_name":"Biyik","full_name":"Biyik, Erdem"},{"last_name":"Booth","full_name":"Booth, Serena","first_name":"Serena"},{"first_name":"Mohamed","full_name":"Chetouani, Mohamed","last_name":"Chetouani"},{"first_name":"Daniel H.","last_name":"Grollman","full_name":"Grollman, Daniel H."},{"last_name":"Saran","full_name":"Saran, Akanksha","first_name":"Akanksha"},{"full_name":"Senft, Emmanuel","last_name":"Senft","first_name":"Emmanuel"},{"full_name":"Tulli, Silvia","last_name":"Tulli","first_name":"Silvia"},{"first_name":"Anna-Lisa","full_name":"Vollmer, Anna-Lisa","last_name":"Vollmer"},{"last_name":"Andriella","full_name":"Andriella, Antonio","first_name":"Antonio"},{"first_name":"Helen","full_name":"Beierling, Helen","last_name":"Beierling"},{"first_name":"Tiffany","last_name":"Horter","full_name":"Horter, Tiffany"},{"first_name":"Jens","last_name":"Kober","full_name":"Kober, Jens"},{"full_name":"Sheidlower, Isaac","last_name":"Sheidlower","first_name":"Isaac"},{"full_name":"Taylor, Matthew E.","last_name":"Taylor","first_name":"Matthew E."},{"full_name":"van Waveren, Sanne","last_name":"van Waveren","first_name":"Sanne"},{"full_name":"Xiao, Xuesu","last_name":"Xiao","first_name":"Xuesu"}],"date_created":"2025-09-17T12:42:45Z","date_updated":"2025-09-17T13:40:16Z","citation":{"ama":"Baraka K, Idrees I, Faulkner TK, et al. Human-Interactive Robot Learning: Definition, Challenges, and Recommendations. <i>Transactions on Human-Robot Interaction</i>.","ieee":"K. Baraka <i>et al.</i>, “Human-Interactive Robot Learning: Definition, Challenges, and Recommendations,” <i>Transactions on Human-Robot Interaction</i>.","chicago":"Baraka, Kim , Ifrah Idrees, Taylor Kessler Faulkner, Erdem Biyik, Serena Booth, Mohamed Chetouani, Daniel H. Grollman, et al. “Human-Interactive Robot Learning: Definition, Challenges, and Recommendations.” <i>Transactions on Human-Robot Interaction</i>, n.d.","short":"K. Baraka, I. Idrees, T.K. Faulkner, E. Biyik, S. Booth, M. Chetouani, D.H. Grollman, A. Saran, E. Senft, S. Tulli, A.-L. Vollmer, A. Andriella, H. Beierling, T. Horter, J. Kober, I. Sheidlower, M.E. Taylor, S. van Waveren, X. Xiao, Transactions on Human-Robot Interaction (n.d.).","bibtex":"@article{Baraka_Idrees_Faulkner_Biyik_Booth_Chetouani_Grollman_Saran_Senft_Tulli_et al., title={Human-Interactive Robot Learning: Definition, Challenges, and Recommendations}, journal={Transactions on Human-Robot Interaction}, author={Baraka, Kim  and Idrees, Ifrah and Faulkner, Taylor Kessler and Biyik, Erdem and Booth, Serena and Chetouani, Mohamed and Grollman, Daniel H. and Saran, Akanksha and Senft, Emmanuel and Tulli, Silvia and et al.} }","mla":"Baraka, Kim, et al. “Human-Interactive Robot Learning: Definition, Challenges, and Recommendations.” <i>Transactions on Human-Robot Interaction</i>.","apa":"Baraka, K., Idrees, I., Faulkner, T. K., Biyik, E., Booth, S., Chetouani, M., Grollman, D. H., Saran, A., Senft, E., Tulli, S., Vollmer, A.-L., Andriella, A., Beierling, H., Horter, T., Kober, J., Sheidlower, I., Taylor, M. E., van Waveren, S., &#38; Xiao, X. (n.d.). Human-Interactive Robot Learning: Definition, Challenges, and Recommendations. <i>Transactions on Human-Robot Interaction</i>."},"year":"2025","publication_status":"submitted"},{"jel":["M10"],"citation":{"apa":"Böhmann, T., Roth, A., Satzger, G., Benz, C., Beverungen, D., Boes, A., Breidbach, C., Gersch, M., Gudergan, G., Hogreve, J., Kurtz, C., Langes, B., Leimeister, J. M., Lewandowski, T., Meiren, T., Nägele, R., Paluch, S., Peters, C., Poeppelbuss, J., … Wünderlich, N. V. (2025). Continuous value shaping: A boundary concept for innovating service innovation approaches. <i>Electronic Markets</i>, <i>35</i>(1), Article 27. <a href=\"https://doi.org/10.1007/s12525-025-00771-1\">https://doi.org/10.1007/s12525-025-00771-1</a>","bibtex":"@article{Böhmann_Roth_Satzger_Benz_Beverungen_Boes_Breidbach_Gersch_Gudergan_Hogreve_et al._2025, title={Continuous value shaping: A boundary concept for innovating service innovation approaches}, volume={35}, DOI={<a href=\"https://doi.org/10.1007/s12525-025-00771-1\">10.1007/s12525-025-00771-1</a>}, number={127}, journal={Electronic Markets}, publisher={Springer Science and Business Media LLC}, author={Böhmann, Tilo and Roth, Angela and Satzger, Gerhard and Benz, Carina and Beverungen, Daniel and Boes, Andreas and Breidbach, Christoph and Gersch, Martin and Gudergan, Gerhard and Hogreve, Jens and et al.}, year={2025} }","short":"T. Böhmann, A. Roth, G. Satzger, C. Benz, D. Beverungen, A. Boes, C. Breidbach, M. Gersch, G. Gudergan, J. Hogreve, C. Kurtz, B. Langes, J.M. Leimeister, T. Lewandowski, T. Meiren, R. Nägele, S. Paluch, C. Peters, J. Poeppelbuss, S. Robra-Bissantz, C. Schultz, J.H. Schumann, J. Wirtz, N.V. Wünderlich, Electronic Markets 35 (2025).","mla":"Böhmann, Tilo, et al. “Continuous Value Shaping: A Boundary Concept for Innovating Service Innovation Approaches.” <i>Electronic Markets</i>, vol. 35, no. 1, 27, Springer Science and Business Media LLC, 2025, doi:<a href=\"https://doi.org/10.1007/s12525-025-00771-1\">10.1007/s12525-025-00771-1</a>.","ama":"Böhmann T, Roth A, Satzger G, et al. Continuous value shaping: A boundary concept for innovating service innovation approaches. <i>Electronic Markets</i>. 2025;35(1). doi:<a href=\"https://doi.org/10.1007/s12525-025-00771-1\">10.1007/s12525-025-00771-1</a>","chicago":"Böhmann, Tilo, Angela Roth, Gerhard Satzger, Carina Benz, Daniel Beverungen, Andreas Boes, Christoph Breidbach, et al. “Continuous Value Shaping: A Boundary Concept for Innovating Service Innovation Approaches.” <i>Electronic Markets</i> 35, no. 1 (2025). <a href=\"https://doi.org/10.1007/s12525-025-00771-1\">https://doi.org/10.1007/s12525-025-00771-1</a>.","ieee":"T. Böhmann <i>et al.</i>, “Continuous value shaping: A boundary concept for innovating service innovation approaches,” <i>Electronic Markets</i>, vol. 35, no. 1, Art. no. 27, 2025, doi: <a href=\"https://doi.org/10.1007/s12525-025-00771-1\">10.1007/s12525-025-00771-1</a>."},"intvolume":"        35","publication_status":"published","publication_identifier":{"issn":["1019-6781","1422-8890"]},"has_accepted_license":"1","doi":"10.1007/s12525-025-00771-1","author":[{"last_name":"Böhmann","full_name":"Böhmann, Tilo","first_name":"Tilo"},{"first_name":"Angela","last_name":"Roth","full_name":"Roth, Angela"},{"last_name":"Satzger","full_name":"Satzger, Gerhard","first_name":"Gerhard"},{"first_name":"Carina","last_name":"Benz","full_name":"Benz, Carina"},{"full_name":"Beverungen, Daniel","last_name":"Beverungen","first_name":"Daniel"},{"last_name":"Boes","full_name":"Boes, Andreas","first_name":"Andreas"},{"last_name":"Breidbach","full_name":"Breidbach, Christoph","first_name":"Christoph"},{"full_name":"Gersch, Martin","last_name":"Gersch","first_name":"Martin"},{"first_name":"Gerhard","full_name":"Gudergan, Gerhard","last_name":"Gudergan"},{"first_name":"Jens","last_name":"Hogreve","full_name":"Hogreve, Jens"},{"last_name":"Kurtz","full_name":"Kurtz, Christian","first_name":"Christian"},{"last_name":"Langes","full_name":"Langes, Barbara","first_name":"Barbara"},{"first_name":"Jan Marco","full_name":"Leimeister, Jan Marco","last_name":"Leimeister"},{"full_name":"Lewandowski, Tom","last_name":"Lewandowski","first_name":"Tom"},{"first_name":"Thomas","last_name":"Meiren","full_name":"Meiren, Thomas"},{"full_name":"Nägele, Rainer","last_name":"Nägele","first_name":"Rainer"},{"first_name":"Stefanie","full_name":"Paluch, Stefanie","last_name":"Paluch"},{"first_name":"Christoph","full_name":"Peters, Christoph","last_name":"Peters"},{"full_name":"Poeppelbuss, Jens","last_name":"Poeppelbuss","first_name":"Jens"},{"full_name":"Robra-Bissantz, Susanne","last_name":"Robra-Bissantz","first_name":"Susanne"},{"last_name":"Schultz","full_name":"Schultz, Carsten","first_name":"Carsten"},{"first_name":"Jan H.","last_name":"Schumann","full_name":"Schumann, Jan H."},{"first_name":"Jochen","last_name":"Wirtz","full_name":"Wirtz, Jochen"},{"first_name":"Nancy V.","last_name":"Wünderlich","full_name":"Wünderlich, Nancy V."}],"volume":35,"date_updated":"2025-11-10T10:19:25Z","status":"public","type":"journal_article","file_date_updated":"2025-04-04T06:19:38Z","article_type":"original","article_number":"27","user_id":"59677","department":[{"_id":"195"}],"project":[{"_id":"1250","name":"SHAPE : Gestaltung von Dienstleistungsentwicklungsprozessen und lnnovationspartnerschaften mit Unternehmen"}],"_id":"59335","year":"2025","issue":"1","quality_controlled":"1","title":"Continuous value shaping: A boundary concept for innovating service innovation approaches","date_created":"2025-04-04T06:10:26Z","publisher":"Springer Science and Business Media LLC","file":[{"content_type":"application/pdf","success":1,"relation":"main_file","date_updated":"2025-04-04T06:19:38Z","date_created":"2025-04-04T06:19:38Z","creator":"dabe","file_size":920032,"file_id":"59336","file_name":"Continuous Value Shaping - EM.pdf","access_level":"closed"}],"abstract":[{"text":"Technological advancements and evolving value orientations reshape future value creation and pose new requirements for service innovation. While a variety of disciplines are developing new approaches to drive service innovation, this is primarily done in isolation and generates only fragmented solutions. Sociological theory has proposed “boundary objects” as an effective umbrella for communication and cooperation among communities. Therefore, we introduce continuous value shaping (CVS) as a boundary object describing service innovation approaches along five principles. We reflect on this concept through the different disciplinary lenses of researchers in service marketing, information systems, service engineering, sociology of work, and innovation management. These perspectives highlight how the CVS principles already connect to discourses within the individual disciplines. However, the CVS concept will not only provide an umbrella to embrace existing activities in different academic disciplines. It also assists to identify research themes that will benefit from uniting the power of these disciplines, and it can serve as an integrating framework to conceptualize complex service innovation approaches. Thus, the CVS concept should guide both researchers and practitioners to develop and implement novel innovation and transformation efforts—in and across organizations.","lang":"eng"}],"publication":"Electronic Markets","language":[{"iso":"eng"}],"ddc":["380"],"keyword":["Continuous value shaping (CVS)","Service research","Service innovation","Digitalization","Sustainability","Interdisciplinary research"],"external_id":{"unknown":["https://link.springer.com/article/10.1007/s12525-025-00771-1"]}},{"title":"In Situ Alloying of Ti-6Al-7Nb with Copper Using Laser Powder Bed Fusion","publisher":"MDPI AG","date_created":"2025-12-12T13:11:59Z","year":"2025","quality_controlled":"1","issue":"12","ddc":["620"],"keyword":["Biomaterial","In Situ Alloying","Titanium","Additive Manufacturing"],"language":[{"iso":"eng"}],"abstract":[{"lang":"eng","text":"<jats:p>Titanium alloys are widely employed for biomedical implants due to their high strength, biocompatibility, and corrosion resistance, yet their lack of intrinsic antibacterial activity remains a major limitation. Incorporating copper, an antibacterial and β-stabilising element, offers a promising strategy to enhance implant performance. This study investigates Ti-6Al-7Nb modified with 1–9 wt.% Cu via in situ alloying during metal-based laser powder bed fusion (PBF-LB/M), with the aim of assessing processability, microstructural evolution, and mechanical properties. Highly dense samples (&gt;99.9%) were produced across all Cu levels, though chemical homogeneity strongly depended on processing parameters. Increasing Cu content promoted β-phase stabilisation, Ti2Cu precipitation, and pronounced grain refinement. Hardness and yield strength increased nearly linearly with Cu addition, while ductility decreased sharply at ≥5 wt.% Cu due to intermetallic formation, hot cracking, and brittle fracture. These results illustrate both the opportunities and constraints of rapid alloy screening via PBF-LB/M. Overall, moderate Cu additions of 1–3 wt.% provide the most favourable balance between mechanical performance, manufacturability, and potential antibacterial functionality. These findings provide a clear guideline for the design of Cu-functionalised titanium implants and demonstrate the efficiency of in situ alloy screening for accelerated materials development.</jats:p>"}],"file":[{"date_updated":"2025-12-12T13:12:33Z","creator":"paulstei","date_created":"2025-12-12T13:12:33Z","file_size":20716652,"access_level":"closed","file_id":"63073","file_name":"crystals-15-01053.pdf","content_type":"application/pdf","success":1,"relation":"main_file"}],"publication":"Crystals","main_file_link":[{"open_access":"1","url":"https://doi.org/10.3390/cryst15121053"}],"doi":"10.3390/cryst15121053","date_updated":"2025-12-12T14:02:13Z","oa":"1","author":[{"full_name":"Steinmeier, Paul","last_name":"Steinmeier","first_name":"Paul"},{"last_name":"Hoyer","full_name":"Hoyer, Kay-Peter","first_name":"Kay-Peter"},{"first_name":"Nelson Filipe","full_name":"Lopes Dias, Nelson Filipe","last_name":"Lopes Dias"},{"full_name":"Zielke, Reiner","last_name":"Zielke","first_name":"Reiner"},{"first_name":"Wolfgang","full_name":"Tillmann, Wolfgang","last_name":"Tillmann"},{"full_name":"Schaper, Mirko","last_name":"Schaper","first_name":"Mirko"}],"volume":15,"citation":{"chicago":"Steinmeier, Paul, Kay-Peter Hoyer, Nelson Filipe Lopes Dias, Reiner Zielke, Wolfgang Tillmann, and Mirko Schaper. “In Situ Alloying of Ti-6Al-7Nb with Copper Using Laser Powder Bed Fusion.” <i>Crystals</i> 15, no. 12 (2025). <a href=\"https://doi.org/10.3390/cryst15121053\">https://doi.org/10.3390/cryst15121053</a>.","ieee":"P. Steinmeier, K.-P. Hoyer, N. F. Lopes Dias, R. Zielke, W. Tillmann, and M. Schaper, “In Situ Alloying of Ti-6Al-7Nb with Copper Using Laser Powder Bed Fusion,” <i>Crystals</i>, vol. 15, no. 12, Art. no. 1053, 2025, doi: <a href=\"https://doi.org/10.3390/cryst15121053\">10.3390/cryst15121053</a>.","ama":"Steinmeier P, Hoyer K-P, Lopes Dias NF, Zielke R, Tillmann W, Schaper M. In Situ Alloying of Ti-6Al-7Nb with Copper Using Laser Powder Bed Fusion. <i>Crystals</i>. 2025;15(12). doi:<a href=\"https://doi.org/10.3390/cryst15121053\">10.3390/cryst15121053</a>","apa":"Steinmeier, P., Hoyer, K.-P., Lopes Dias, N. F., Zielke, R., Tillmann, W., &#38; Schaper, M. (2025). In Situ Alloying of Ti-6Al-7Nb with Copper Using Laser Powder Bed Fusion. <i>Crystals</i>, <i>15</i>(12), Article 1053. <a href=\"https://doi.org/10.3390/cryst15121053\">https://doi.org/10.3390/cryst15121053</a>","short":"P. Steinmeier, K.-P. Hoyer, N.F. Lopes Dias, R. Zielke, W. Tillmann, M. Schaper, Crystals 15 (2025).","mla":"Steinmeier, Paul, et al. “In Situ Alloying of Ti-6Al-7Nb with Copper Using Laser Powder Bed Fusion.” <i>Crystals</i>, vol. 15, no. 12, 1053, MDPI AG, 2025, doi:<a href=\"https://doi.org/10.3390/cryst15121053\">10.3390/cryst15121053</a>.","bibtex":"@article{Steinmeier_Hoyer_Lopes Dias_Zielke_Tillmann_Schaper_2025, title={In Situ Alloying of Ti-6Al-7Nb with Copper Using Laser Powder Bed Fusion}, volume={15}, DOI={<a href=\"https://doi.org/10.3390/cryst15121053\">10.3390/cryst15121053</a>}, number={121053}, journal={Crystals}, publisher={MDPI AG}, author={Steinmeier, Paul and Hoyer, Kay-Peter and Lopes Dias, Nelson Filipe and Zielke, Reiner and Tillmann, Wolfgang and Schaper, Mirko}, year={2025} }"},"intvolume":"        15","publication_status":"published","has_accepted_license":"1","publication_identifier":{"issn":["2073-4352"]},"article_type":"original","article_number":"1053","funded_apc":"1","file_date_updated":"2025-12-12T13:12:33Z","_id":"63072","user_id":"69776","department":[{"_id":"158"},{"_id":"321"}],"status":"public","type":"journal_article"},{"title":"Maghemite nanoparticles synthesis via spray flame synthesis and particle characterization by hole in a tube sampling and scanning mobility particle sizing (HIAT-SMPS)","publisher":"Elsevier","date_created":"2024-02-05T12:02:57Z","year":"2024","ddc":["660"],"keyword":["Flame Spray Pyrolysis","SpraySyn2","Spray flame synthesis","Maghemite nanoparticles","Gas to particle-conversion","Hole in a tube sampling"],"language":[{"iso":"eng"}],"abstract":[{"lang":"eng","text":"In order to standardize spray flame synthesis (SFS) studies, intensive work has been done in recent years on the design of burner types. Thus, in 2019, the so-called SpraySyn1 burner was introduced (SS1), which was subsequently characterized in numerical and experimental studies. Based on this research, a modification of the nozzle design was proposed, which has now been considered in the successor model, SpraySyn2 (SS2). As little is known about the effect of the nozzle adaptation on the particle formation, we operated both burners under identical operating conditions to produce maghemite. The final powder comparison showed that SS2 yielded considerable higher specific surface areas (associated with smaller primary particle sizes), lower polydispersity, and higher phase purity. To obtain further information on the size distributions of aggregates and agglomerates generated by SS2, aerosol samples were extracted by hole in a tube (HIAT) sampling and characterized by scanning mobility particle sizing (SMPS). Samples were extracted along the centerline at different heights above the burner (HAB) above the visible flame tip (>7 cm), and quenching experiments were performed to extract the aerosol samples at different dilution rates. Thereby, it was demonstrated that performing detailed quenching experiments is crucial for obtaining representative HIAT-SMPS data. In particular, agglomerates/aggregate sizes were overestimated by up to ~70 % if samples were not sufficiently diluted. If sufficient dilution was applied, distribution widths and mean particle mobility diameters were determined with high accuracy (sample standard derivation <5 %). Our data suggested the evolution of primary particle sizes was mostly completed <7 cm HAB and it was shown aggregates/agglomerates present above the visible flame were compact in structure (non- fractal). The mean diameter of the particle ensemble grew along the centerline from 6.9 nm (7 cm) to 11.4 nm (15 cm), while distribution widths grew from 1.42 to 1.52."}],"publication":"Applications in Energy and Combustion Science","main_file_link":[{"url":"https://www.sciencedirect.com/science/article/pii/S2666352X23001243?ref=cra_js_challenge&fr=RR-1"}],"doi":"https://doi.org/10.1016/j.jaecs.2023.100235","date_updated":"2024-02-05T12:25:00Z","citation":{"chicago":"Tischendorf, Ricardo, Orlando Massopo, Hans-Joachim Schmid, Olek Pyrmak, Sophie Dupont, Fabian Fröde, Heinz Pitsch, and Reinhold Kneer, eds. <i>Maghemite Nanoparticles Synthesis via Spray Flame Synthesis and Particle Characterization by Hole in a Tube Sampling and Scanning Mobility Particle Sizing (HIAT-SMPS)</i>. <i>Applications in Energy and Combustion Science</i>. Elsevier, 2024. <a href=\"https://doi.org/10.1016/j.jaecs.2023.100235\">https://doi.org/10.1016/j.jaecs.2023.100235</a>.","ieee":"R. Tischendorf <i>et al.</i>, Eds., <i>Maghemite nanoparticles synthesis via spray flame synthesis and particle characterization by hole in a tube sampling and scanning mobility particle sizing (HIAT-SMPS)</i>. Elsevier, 2024.","ama":"Tischendorf R, Massopo O, Schmid H-J, et al., eds. <i>Maghemite Nanoparticles Synthesis via Spray Flame Synthesis and Particle Characterization by Hole in a Tube Sampling and Scanning Mobility Particle Sizing (HIAT-SMPS)</i>. Elsevier; 2024. doi:<a href=\"https://doi.org/10.1016/j.jaecs.2023.100235\">https://doi.org/10.1016/j.jaecs.2023.100235</a>","apa":"Maghemite nanoparticles synthesis via spray flame synthesis and particle characterization by hole in a tube sampling and scanning mobility particle sizing (HIAT-SMPS). (2024). In R. Tischendorf, O. Massopo, H.-J. Schmid, O. Pyrmak, S. Dupont, F. Fröde, H. Pitsch, &#38; R. Kneer (Eds.), <i>Applications in Energy and Combustion Science</i>. Elsevier. <a href=\"https://doi.org/10.1016/j.jaecs.2023.100235\">https://doi.org/10.1016/j.jaecs.2023.100235</a>","bibtex":"@book{Tischendorf_Massopo_Schmid_Pyrmak_Dupont_Fröde_Pitsch_Kneer_2024, title={Maghemite nanoparticles synthesis via spray flame synthesis and particle characterization by hole in a tube sampling and scanning mobility particle sizing (HIAT-SMPS)}, DOI={<a href=\"https://doi.org/10.1016/j.jaecs.2023.100235\">https://doi.org/10.1016/j.jaecs.2023.100235</a>}, journal={Applications in Energy and Combustion Science}, publisher={Elsevier}, year={2024} }","mla":"Tischendorf, Ricardo, et al., editors. “Maghemite Nanoparticles Synthesis via Spray Flame Synthesis and Particle Characterization by Hole in a Tube Sampling and Scanning Mobility Particle Sizing (HIAT-SMPS).” <i>Applications in Energy and Combustion Science</i>, Elsevier, 2024, doi:<a href=\"https://doi.org/10.1016/j.jaecs.2023.100235\">https://doi.org/10.1016/j.jaecs.2023.100235</a>.","short":"R. Tischendorf, O. Massopo, H.-J. Schmid, O. Pyrmak, S. Dupont, F. Fröde, H. Pitsch, R. Kneer, eds., Maghemite Nanoparticles Synthesis via Spray Flame Synthesis and Particle Characterization by Hole in a Tube Sampling and Scanning Mobility Particle Sizing (HIAT-SMPS), Elsevier, 2024."},"publication_status":"published","has_accepted_license":"1","_id":"51133","user_id":"98419","department":[{"_id":"150"}],"editor":[{"first_name":"Ricardo","last_name":"Tischendorf","id":"67002","full_name":"Tischendorf, Ricardo"},{"first_name":"Orlando","last_name":"Massopo","id":"98419","full_name":"Massopo, Orlando"},{"first_name":"Hans-Joachim","id":"464","full_name":"Schmid, Hans-Joachim","last_name":"Schmid","orcid":"000-0001-8590-1921"},{"first_name":"Olek","full_name":"Pyrmak, Olek","last_name":"Pyrmak"},{"last_name":"Dupont","full_name":"Dupont, Sophie","first_name":"Sophie"},{"full_name":"Fröde, Fabian","last_name":"Fröde","first_name":"Fabian"},{"last_name":"Pitsch","full_name":"Pitsch, Heinz","first_name":"Heinz"},{"first_name":"Reinhold","last_name":"Kneer","full_name":"Kneer, Reinhold"}],"status":"public","type":"journal_editor"},{"status":"public","abstract":[{"lang":"eng","text":"Reputation systems for companies to rate each other's performance are largely unexplored in research and hardly available in practice. However, these systems are relevant for prospective buyers to find a trustworthy seller. This observation applies especially to short-lived business relationships where fulfilling the performance promise is subject to a high degree of uncertainty. This paper explores the value of a reputation system for a business-to-business (B2B) context and focuses on three novel solutions for designing reputation systems. These solutions include selling ratings, conducting ratings as payments, and employing a counter-rating mechanism. We interview buyers to fathom the added value of these solutions in different contexts. Our findings suggest that such a system is useful for companies acting in less transparent markets and also helps when companies already have a good market overview. Depending on the market conditions and business context, the perceived value of the proposed system varies."}],"type":"conference","publication":"Proceedings of the 57th Hawaii International Conference on System Sciences","language":[{"iso":"eng"}],"keyword":["Electronic Marketing","business-to-business","new design approach","reputation systems","value for buyers."],"user_id":"74374","department":[{"_id":"195"}],"_id":"54916","citation":{"apa":"Hemmrich, S., Schäfer, J. M., Hansmeier, P., &#38; Beverungen, D. (2024). The Value of Reputation Systems in Business Contexts–A Qualitative Study Taking the View of Buyers. <i>Proceedings of the 57th Hawaii International Conference on System Sciences</i>. Hawaii International Conference on System Sciences 2024, Honolulu.","mla":"Hemmrich, Simon, et al. “The Value of Reputation Systems in Business Contexts–A Qualitative Study Taking the View of Buyers.” <i>Proceedings of the 57th Hawaii International Conference on System Sciences</i>, 2024.","bibtex":"@inproceedings{Hemmrich_Schäfer_Hansmeier_Beverungen_2024, title={The Value of Reputation Systems in Business Contexts–A Qualitative Study Taking the View of Buyers}, booktitle={Proceedings of the 57th Hawaii International Conference on System Sciences}, author={Hemmrich, Simon and Schäfer, Jannika Marie and Hansmeier, Philipp and Beverungen, Daniel}, year={2024} }","short":"S. Hemmrich, J.M. Schäfer, P. Hansmeier, D. Beverungen, in: Proceedings of the 57th Hawaii International Conference on System Sciences, 2024.","ieee":"S. Hemmrich, J. M. Schäfer, P. Hansmeier, and D. Beverungen, “The Value of Reputation Systems in Business Contexts–A Qualitative Study Taking the View of Buyers,” presented at the Hawaii International Conference on System Sciences 2024, Honolulu, 2024.","chicago":"Hemmrich, Simon, Jannika Marie Schäfer, Philipp Hansmeier, and Daniel Beverungen. “The Value of Reputation Systems in Business Contexts–A Qualitative Study Taking the View of Buyers.” In <i>Proceedings of the 57th Hawaii International Conference on System Sciences</i>, 2024.","ama":"Hemmrich S, Schäfer JM, Hansmeier P, Beverungen D. The Value of Reputation Systems in Business Contexts–A Qualitative Study Taking the View of Buyers. In: <i>Proceedings of the 57th Hawaii International Conference on System Sciences</i>. ; 2024."},"year":"2024","publication_status":"published","main_file_link":[{"url":"https://www.researchgate.net/profile/Simon-Hemmrich-3/publication/374550987_The_Value_of_Reputation_Systems_in_Business_Contexts_-A_Qualitative_Study_Taking_the_View_of_Buyers/links/652406723ab6cb4ec6d01951/The-Value-of-Reputation-Systems-in-Business-Contexts-A-Qualitative-Study-Taking-the-View-of-Buyers.pdf"}],"conference":{"end_date":"2024-01-06","location":"Honolulu","name":"Hawaii International Conference on System Sciences 2024","start_date":"2024-01-03"},"title":"The Value of Reputation Systems in Business Contexts–A Qualitative Study Taking the View of Buyers","author":[{"first_name":"Simon","last_name":"Hemmrich","id":"83557","full_name":"Hemmrich, Simon"},{"last_name":"Schäfer","id":"74374","full_name":"Schäfer, Jannika Marie","first_name":"Jannika Marie"},{"last_name":"Hansmeier","full_name":"Hansmeier, Philipp","id":"55603","first_name":"Philipp"},{"first_name":"Daniel","full_name":"Beverungen, Daniel","id":"59677","last_name":"Beverungen"}],"date_created":"2024-06-27T09:52:26Z","date_updated":"2024-06-27T10:01:29Z"},{"_id":"56935","user_id":"1112","ddc":["380"],"article_type":"original","keyword":["MINTfluencerin","Frauen in MINT","Wissenschaftskommunikation","Instagram","qualitative Inhaltsanalyse","Gender Media Studies","Gender Science Studies"],"language":[{"iso":"ger"}],"type":"journal_article","publication":"Gender(ed) thoughts","abstract":[{"lang":"ger","text":"Der Neologismus ‚MINTfluencer:in‘ beschreibt reichweitenstarke Profile in sozialen Netzwerken von Frauen in technischen und naturwissenschaftlichen Berufen. Die qualitative Inhaltsanalyse untersucht die unterrepräsentierten Gruppen ‚Scientist Mom‘ und ‚Trans* Scientist‘ auf Instagram aus gendermedialer Perspektive. Es werden Erkenntnisse über das Verhältnis von Wissenschaftskommunikation, Berufsrepräsentation sowie Geschlecht generiert und mit dekonstruktivistischen, intersektionalen Theorien und Heteronormativitätskritik verknüpft. Die Betrachtung der Selbstinszenierung berufstätiger Mütter und transsexueller Wissenschaftler:innen als MINTfluencer:innen erforscht, inwiefern ihr Auftreten als feministische Transformation im Kontext weiblicher Berufsausübung und Sichtbarkeit in männlich dominierten Berufen gesehen werden kann. "}],"status":"public","date_updated":"2024-11-08T10:09:10Z","publisher":"University Goettingen","date_created":"2024-11-07T07:07:27Z","author":[{"first_name":"Ricarda","last_name":"Pätz","id":"73151","full_name":"Pätz, Ricarda"}],"title":"MINTfluencerinnen auf Instagram. Sozialmediale Sichtbarkeit junger Frauen in MINT-Berufen","main_file_link":[{"url":"https://www.gendered-thoughts.de/index.php?id=8&L=0"}],"publication_status":"published","has_accepted_license":"1","quality_controlled":"1","year":"2024","citation":{"mla":"Pätz, Ricarda. “MINTfluencerinnen auf Instagram. Sozialmediale Sichtbarkeit junger Frauen in MINT-Berufen.” <i>Gender(ed) thoughts</i>, University Goettingen, 2024.","short":"R. Pätz, Gender(ed) thoughts (2024).","bibtex":"@article{Pätz_2024, title={MINTfluencerinnen auf Instagram. Sozialmediale Sichtbarkeit junger Frauen in MINT-Berufen}, journal={Gender(ed) thoughts}, publisher={University Goettingen}, author={Pätz, Ricarda}, year={2024} }","apa":"Pätz, R. (2024). MINTfluencerinnen auf Instagram. Sozialmediale Sichtbarkeit junger Frauen in MINT-Berufen. <i>Gender(ed) thoughts</i>.","ama":"Pätz R. MINTfluencerinnen auf Instagram. Sozialmediale Sichtbarkeit junger Frauen in MINT-Berufen. <i>Gender(ed) thoughts</i>. Published online 2024.","ieee":"R. Pätz, “MINTfluencerinnen auf Instagram. Sozialmediale Sichtbarkeit junger Frauen in MINT-Berufen,” <i>Gender(ed) thoughts</i>, 2024.","chicago":"Pätz, Ricarda. “MINTfluencerinnen auf Instagram. Sozialmediale Sichtbarkeit junger Frauen in MINT-Berufen.” <i>Gender(ed) thoughts</i>, 2024."}},{"article_type":"original","keyword":["Deprofessionalisierung","Kooperation","Fachkräfte für das Multiprofessionelle Team(MPT)","Aufgabenprofile in der inklusiven Schule"],"language":[{"iso":"ger"}],"_id":"58066","user_id":"56091","department":[{"_id":"450"}],"abstract":[{"lang":"ger","text":"Der Beitrag untersucht den Einsatz von Fachkräften für das Multiprofessionelle Team im Gemeinsamen Lernen (MPT). Diese meist sozialpädagogisch  ausgebildeten Fachkräfte sind dezidiert für die Unterstützung der Inklusion an Grund-, Sekundar-und Gesamtschulen angestellt.  Erste Befunde (Grüter et al.,2022) und ministeriale Aufgabenbeschreibung (Ministerium für Schule und Bildung des Landes  Nordrhein-Westfalen [MSB NRW], 2022) deuten auf ein offenes, wenig definiertes Tätigkeitsspektrum hin. Mögliche Aufgabengebiete der MPT überschneiden sich mit denen der (sonderpädagogischen)  Lehrkräfte, der Schulsozialarbeiter*innen und –im Hinblick auf die Unterstützung im Unterricht ohne Unterrichtsverantwortung –mit denen der Schulbegleitungen  (Lübeck, 2019).Die Überlappungen legen nahe, dass auch für die MPT das „Zuständigkeitsdiffusitätsproblem“ (Kunze 2016, S.265) gilt und die multiprofessionelle Teamarbeit entsprechend beeinflusst. Da es bislang keine Daten darüber gibt, wie sich die Berufsrolle von MPT-Kräften in der Breite ausgestaltet,  eruiert der Beitrag in einer quantitativen  Studie ebendiese  Frage. Zusätzlich werden die Fragenfokussiert, über welche Qualifikationen und Vorerfahrungen MPT-Kräfte verfügen und mit welchen Akteur*innen MPT-Kräfte in welcher Form kooperieren. Die Untersuchung bezieht sich auf den Einsatz von MPT an Gesamt-und Sekundarschulen in NRW. Insgesamt wurden 109 MPT-Kräfte in Form eines Online-Fragebogens  befragt. Anhand der Ergebnisse konnte ein breites Einsatzgebiet mit vereinzelten Aufgabenschwerpunkten (v.a. im Bereich der sonderpädagogisch orientierten Kleingruppenförderung) der MPT-Kräfteidentifiziert werden. Schnittmengen zu Aufgabenschwerpunkten anderer Berufsgruppen werden unter Berücksichtigung der multiprofessionellen  Kooperation hinsichtlich der Frage diskutiert, ob der Einsatz von MPT-Kräften inklusive Zielstellungen  eher befördert oder im Sinne einer Deprofessionalisierung sonderpädagogischer  Förderung eher entgegensteht."}],"status":"public","type":"journal_article","publication":"Zeitschrift für Inklusion","title":"Bestimmt unbestimmt? - Eine quantitativ-explorative Studie zu Aufgabenprofilen von Fachkräften für das Multiprofessionelle  Team (MPT) an inklusiven Gesamt-und Sekundarschulen in NRW.","main_file_link":[{"url":"https://www.inklusion-online.net/index.php/inklusion-online/article/view/816","open_access":"1"}],"date_updated":"2025-01-23T17:13:11Z","oa":"1","author":[{"id":"56091","full_name":"Meusel, Sarah","last_name":"Meusel","first_name":"Sarah"},{"first_name":"Lukas","full_name":"Müller, Lukas","id":"83570","last_name":"Müller"},{"full_name":"Jesuthasan, Jonitta","id":"94539","last_name":"Jesuthasan","first_name":"Jonitta"}],"date_created":"2025-01-07T10:15:03Z","year":"2024","citation":{"ieee":"S. Meusel, L. Müller, and J. Jesuthasan, “Bestimmt unbestimmt? - Eine quantitativ-explorative Studie zu Aufgabenprofilen von Fachkräften für das Multiprofessionelle  Team (MPT) an inklusiven Gesamt-und Sekundarschulen in NRW.,” <i>Zeitschrift für Inklusion</i>, no. 5, 2024.","chicago":"Meusel, Sarah, Lukas Müller, and Jonitta Jesuthasan. “Bestimmt unbestimmt? - Eine quantitativ-explorative Studie zu Aufgabenprofilen von Fachkräften für das Multiprofessionelle  Team (MPT) an inklusiven Gesamt-und Sekundarschulen in NRW.” <i>Zeitschrift für Inklusion</i>, no. 5 (2024).","ama":"Meusel S, Müller L, Jesuthasan J. Bestimmt unbestimmt? - Eine quantitativ-explorative Studie zu Aufgabenprofilen von Fachkräften für das Multiprofessionelle  Team (MPT) an inklusiven Gesamt-und Sekundarschulen in NRW. <i>Zeitschrift für Inklusion</i>. 2024;(5).","bibtex":"@article{Meusel_Müller_Jesuthasan_2024, title={Bestimmt unbestimmt? - Eine quantitativ-explorative Studie zu Aufgabenprofilen von Fachkräften für das Multiprofessionelle  Team (MPT) an inklusiven Gesamt-und Sekundarschulen in NRW.}, number={5}, journal={Zeitschrift für Inklusion}, author={Meusel, Sarah and Müller, Lukas and Jesuthasan, Jonitta}, year={2024} }","mla":"Meusel, Sarah, et al. “Bestimmt unbestimmt? - Eine quantitativ-explorative Studie zu Aufgabenprofilen von Fachkräften für das Multiprofessionelle  Team (MPT) an inklusiven Gesamt-und Sekundarschulen in NRW.” <i>Zeitschrift für Inklusion</i>, no. 5, 2024.","short":"S. Meusel, L. Müller, J. Jesuthasan, Zeitschrift für Inklusion (2024).","apa":"Meusel, S., Müller, L., &#38; Jesuthasan, J. (2024). Bestimmt unbestimmt? - Eine quantitativ-explorative Studie zu Aufgabenprofilen von Fachkräften für das Multiprofessionelle  Team (MPT) an inklusiven Gesamt-und Sekundarschulen in NRW. <i>Zeitschrift für Inklusion</i>, <i>5</i>."},"publication_status":"published","quality_controlled":"1","issue":"5"},{"main_file_link":[{"url":"https://indrum2024.sciencesconf.org/data/pages/Proceedings_INDRUM2024.pdf","open_access":"1"}],"author":[{"first_name":"Max","orcid":"0000-0002-6964-7123","last_name":"Hoffmann","id":"32202","full_name":"Hoffmann, Max"},{"full_name":"Schlüter, Sarah","last_name":"Schlüter","first_name":"Sarah"}],"date_updated":"2025-01-02T10:45:59Z","oa":"1","citation":{"short":"M. Hoffmann, S. Schlüter, in: A.S. González-Martín, G. Gueudet, I. Florensa, N. Lombard (Eds.), Proceedings of the Fifth Conference of the International Network for Didactic Research in University Mathematics (INDRUM 2024, 10-14 June 2024), Escola Univerist`aria Salesiana de Sarri`a – Univ. Aut`onoma de Barcelona and INDRUM, Barcelona, 2024.","bibtex":"@inproceedings{Hoffmann_Schlüter_2024, place={Barcelona}, title={How Do Advanced Pre-Service Teachers Develop Congruence Theorems for Quadrilaterals?}, booktitle={Proceedings of the Fifth Conference of the International Network for Didactic Research in University Mathematics (INDRUM 2024, 10-14 June 2024)}, publisher={Escola Univerist`aria Salesiana de Sarri`a – Univ. Aut`onoma de Barcelona and INDRUM}, author={Hoffmann, Max and Schlüter, Sarah}, editor={González-Martín, Alejandro S. and Gueudet, Ghislaine and Florensa, Ignasi and Lombard, Nathan}, year={2024} }","mla":"Hoffmann, Max, and Sarah Schlüter. “How Do Advanced Pre-Service Teachers Develop Congruence Theorems for Quadrilaterals?” <i>Proceedings of the Fifth Conference of the International Network for Didactic Research in University Mathematics (INDRUM 2024, 10-14 June 2024)</i>, edited by Alejandro S. González-Martín et al., Escola Univerist`aria Salesiana de Sarri`a – Univ. Aut`onoma de Barcelona and INDRUM, 2024.","apa":"Hoffmann, M., &#38; Schlüter, S. (2024). How Do Advanced Pre-Service Teachers Develop Congruence Theorems for Quadrilaterals? In A. S. González-Martín, G. Gueudet, I. Florensa, &#38; N. Lombard (Eds.), <i>Proceedings of the Fifth Conference of the International Network for Didactic Research in University Mathematics (INDRUM 2024, 10-14 June 2024)</i>. Escola Univerist`aria Salesiana de Sarri`a – Univ. Aut`onoma de Barcelona and INDRUM.","ama":"Hoffmann M, Schlüter S. How Do Advanced Pre-Service Teachers Develop Congruence Theorems for Quadrilaterals? In: González-Martín AS, Gueudet G, Florensa I, Lombard N, eds. <i>Proceedings of the Fifth Conference of the International Network for Didactic Research in University Mathematics (INDRUM 2024, 10-14 June 2024)</i>. Escola Univerist`aria Salesiana de Sarri`a – Univ. Aut`onoma de Barcelona and INDRUM; 2024.","ieee":"M. Hoffmann and S. Schlüter, “How Do Advanced Pre-Service Teachers Develop Congruence Theorems for Quadrilaterals?,” in <i>Proceedings of the Fifth Conference of the International Network for Didactic Research in University Mathematics (INDRUM 2024, 10-14 June 2024)</i>, 2024.","chicago":"Hoffmann, Max, and Sarah Schlüter. “How Do Advanced Pre-Service Teachers Develop Congruence Theorems for Quadrilaterals?” In <i>Proceedings of the Fifth Conference of the International Network for Didactic Research in University Mathematics (INDRUM 2024, 10-14 June 2024)</i>, edited by Alejandro S. González-Martín, Ghislaine Gueudet, Ignasi Florensa, and Nathan Lombard. Barcelona: Escola Univerist`aria Salesiana de Sarri`a – Univ. Aut`onoma de Barcelona and INDRUM, 2024."},"place":"Barcelona","has_accepted_license":"1","publication_status":"published","file_date_updated":"2025-01-02T10:42:21Z","department":[{"_id":"97"},{"_id":"643"}],"user_id":"32202","_id":"57895","status":"public","editor":[{"first_name":"Alejandro S.","full_name":"González-Martín, Alejandro S.","last_name":"González-Martín"},{"full_name":"Gueudet, Ghislaine","last_name":"Gueudet","first_name":"Ghislaine"},{"first_name":"Ignasi","full_name":"Florensa, Ignasi","last_name":"Florensa"},{"first_name":"Nathan","last_name":"Lombard","full_name":"Lombard, Nathan"}],"type":"conference","title":"How Do Advanced Pre-Service Teachers Develop Congruence Theorems for Quadrilaterals?","date_created":"2025-01-02T10:45:53Z","publisher":"Escola Univerist`aria Salesiana de Sarri`a – Univ. Aut`onoma de Barcelona and INDRUM","year":"2024","quality_controlled":"1","language":[{"iso":"eng"}],"keyword":["Teachers’ and students’ practices at university level","Transition to","across and from university mathematics","Teaching and learning of specific topics in university mathematics","Congruence","Quadrilaterals"],"ddc":["370","510"],"file":[{"content_type":"application/pdf","relation":"main_file","success":1,"date_created":"2025-01-02T10:42:21Z","creator":"maxh","date_updated":"2025-01-02T10:42:21Z","file_name":"2024_Hoffmann_Schlueter_CongruenceQuadrilaterals.pdf","file_id":"57896","access_level":"closed","file_size":315111}],"abstract":[{"text":"In our paper, we present a study in which we investigate which strategies pre-service teachers (PSTs) use to find and, if necessary, reject possible candidates for congruence theorems for quadrilaterals. This study was conducted before the PTSs attended a university geometry course. In this way, statements about learning prerequisites can be made. For the study, we analyzed group discussions of PSTs to identify typical approaches and evaluate them from a mathematical perspective. The results can be considered for the further development of courses for PSTs and generate hypotheses\r\nfor further research.","lang":"eng"}],"publication":"Proceedings of the Fifth Conference of the International Network for Didactic Research in University Mathematics (INDRUM 2024, 10-14 June 2024)"},{"keyword":["postmemory","unrelieable telling","war crimes in Austria in the context of the Second World War","Eva Menasse","Raphaela Edelbauer"],"language":[{"iso":"ger"}],"publication":"Von neuen Blicken auf die frühe Nachkriegszeit","publisher":"iudicium","date_created":"2025-01-22T14:00:26Z","title":"Zu den Unwägbarkeiten des Erbes - Unzuverlässiges Postmemory-Erzählen in den Gesellschaftsromanen 'Das flüssige Land' von Raphaela Edelbauer und in 'Dunkelblum' von Eva Menasse","quality_controlled":"1","year":"2024","_id":"58324","user_id":"26755","department":[{"_id":"5"}],"type":"conference","editor":[{"last_name":"Karlsson Hammarfelt","full_name":"Karlsson Hammarfelt, Linda","first_name":"Linda"},{"first_name":"Edgar","full_name":"Platen, Edgar","last_name":"Platen"},{"last_name":"Platen","full_name":"Platen, Petra","first_name":"Petra"}],"status":"public","date_updated":"2025-02-07T13:25:37Z","author":[{"first_name":"Inez","last_name":"Müller","id":"26755","full_name":"Müller, Inez"}],"conference":{"location":"Universität Göteborg / Schweden","end_date":"2023-10-09","start_date":"2023-10-07","name":"13th conference Zur Darstellung von Zeitgeschichte in deutschsprachiger Gegenwartsliteratur"},"publication_status":"published","publication_identifier":{"isbn":["978-3-86205-770-2"]},"place":"München","citation":{"bibtex":"@inproceedings{Müller_2024, place={München}, title={Zu den Unwägbarkeiten des Erbes - Unzuverlässiges Postmemory-Erzählen in den Gesellschaftsromanen “Das flüssige Land” von Raphaela Edelbauer und in “Dunkelblum” von Eva Menasse}, booktitle={Von neuen Blicken auf die frühe Nachkriegszeit}, publisher={iudicium}, author={Müller, Inez}, editor={Karlsson Hammarfelt, Linda and Platen, Edgar and Platen, Petra}, year={2024}, pages={112–126} }","mla":"Müller, Inez. “Zu den Unwägbarkeiten des Erbes - Unzuverlässiges Postmemory-Erzählen in den Gesellschaftsromanen ‘Das flüssige Land’ von Raphaela Edelbauer und in ‘Dunkelblum’ von Eva Menasse.” <i>Von neuen Blicken auf die frühe Nachkriegszeit</i>, edited by Linda Karlsson Hammarfelt et al., iudicium, 2024, pp. 112–26.","short":"I. Müller, in: L. Karlsson Hammarfelt, E. Platen, P. Platen (Eds.), Von neuen Blicken auf die frühe Nachkriegszeit, iudicium, München, 2024, pp. 112–126.","apa":"Müller, I. (2024). Zu den Unwägbarkeiten des Erbes - Unzuverlässiges Postmemory-Erzählen in den Gesellschaftsromanen “Das flüssige Land” von Raphaela Edelbauer und in “Dunkelblum” von Eva Menasse. In L. Karlsson Hammarfelt, E. Platen, &#38; P. Platen (Eds.), <i>Von neuen Blicken auf die frühe Nachkriegszeit</i> (pp. 112–126). iudicium.","ama":"Müller I. Zu den Unwägbarkeiten des Erbes - Unzuverlässiges Postmemory-Erzählen in den Gesellschaftsromanen “Das flüssige Land” von Raphaela Edelbauer und in “Dunkelblum” von Eva Menasse. In: Karlsson Hammarfelt L, Platen E, Platen P, eds. <i>Von neuen Blicken auf die frühe Nachkriegszeit</i>. iudicium; 2024:112-126.","ieee":"I. Müller, “Zu den Unwägbarkeiten des Erbes - Unzuverlässiges Postmemory-Erzählen in den Gesellschaftsromanen ‘Das flüssige Land’ von Raphaela Edelbauer und in ‘Dunkelblum’ von Eva Menasse,” in <i>Von neuen Blicken auf die frühe Nachkriegszeit</i>, Universität Göteborg / Schweden, 2024, pp. 112–126.","chicago":"Müller, Inez. “Zu den Unwägbarkeiten des Erbes - Unzuverlässiges Postmemory-Erzählen in den Gesellschaftsromanen ‘Das flüssige Land’ von Raphaela Edelbauer und in ‘Dunkelblum’ von Eva Menasse.” In <i>Von neuen Blicken auf die frühe Nachkriegszeit</i>, edited by Linda Karlsson Hammarfelt, Edgar Platen, and Petra Platen, 112–26. München: iudicium, 2024."},"page":"112-126"},{"volume":9,"author":[{"first_name":"Umair","orcid":"0000-0001-6714-8729","last_name":"Qudus","full_name":"Qudus, Umair","id":"83392"},{"first_name":"Michael","last_name":"Röder","orcid":"https://orcid.org/0000-0002-8609-8277","full_name":"Röder, Michael","id":"67199"},{"first_name":"Daniel","last_name":"Vollmers","full_name":"Vollmers, Daniel"},{"id":"65716","full_name":"Ngonga Ngomo, Axel-Cyrille","last_name":"Ngonga Ngomo","first_name":"Axel-Cyrille"}],"date_updated":"2025-09-11T09:49:07Z","doi":"10.1145/3627673.3679923","conference":{"location":"Boise, ID, USA","end_date":"2024-10-25","start_date":"2024-10-21","name":"CIKM '24: Proceedings of the 33rd ACM International Conference on Information and Knowledge Management"},"main_file_link":[{"url":"https://dl.acm.org/doi/10.1145/3627673.3679923"}],"has_accepted_license":"1","publication_identifier":{"isbn":["79-8-4007-0436-9/24/10"]},"publication_status":"published","page":"3994 - 3999","intvolume":"         9","citation":{"apa":"Qudus, U., Röder, M., Vollmers, D., &#38; Ngonga Ngomo, A.-C. (2024). ExPrompt: Augmenting Prompts Using Examples as Modern Baseline for Stance Classification. <i>Proceedings of the 33rd ACM International Conference on Information and Knowledge Management</i>, <i>9</i>, 3994–3999. <a href=\"https://doi.org/10.1145/3627673.3679923\">https://doi.org/10.1145/3627673.3679923</a>","short":"U. Qudus, M. Röder, D. Vollmers, A.-C. Ngonga Ngomo, in: Proceedings of the 33rd ACM International Conference on Information and Knowledge Management, ACM, 2024, pp. 3994–3999.","bibtex":"@inproceedings{Qudus_Röder_Vollmers_Ngonga Ngomo_2024, title={ExPrompt: Augmenting Prompts Using Examples as Modern Baseline for Stance Classification}, volume={9}, DOI={<a href=\"https://doi.org/10.1145/3627673.3679923\">10.1145/3627673.3679923</a>}, booktitle={Proceedings of the 33rd ACM International Conference on Information and Knowledge Management}, publisher={ACM}, author={Qudus, Umair and Röder, Michael and Vollmers, Daniel and Ngonga Ngomo, Axel-Cyrille}, year={2024}, pages={3994–3999} }","mla":"Qudus, Umair, et al. “ExPrompt: Augmenting Prompts Using Examples as Modern Baseline for Stance Classification.” <i>Proceedings of the 33rd ACM International Conference on Information and Knowledge Management</i>, vol. 9, ACM, 2024, pp. 3994–99, doi:<a href=\"https://doi.org/10.1145/3627673.3679923\">10.1145/3627673.3679923</a>.","ama":"Qudus U, Röder M, Vollmers D, Ngonga Ngomo A-C. ExPrompt: Augmenting Prompts Using Examples as Modern Baseline for Stance Classification. In: <i>Proceedings of the 33rd ACM International Conference on Information and Knowledge Management</i>. Vol 9. ACM; 2024:3994-3999. doi:<a href=\"https://doi.org/10.1145/3627673.3679923\">10.1145/3627673.3679923</a>","ieee":"U. Qudus, M. Röder, D. Vollmers, and A.-C. Ngonga Ngomo, “ExPrompt: Augmenting Prompts Using Examples as Modern Baseline for Stance Classification,” in <i>Proceedings of the 33rd ACM International Conference on Information and Knowledge Management</i>, Boise, ID, USA, 2024, vol. 9, pp. 3994–3999, doi: <a href=\"https://doi.org/10.1145/3627673.3679923\">10.1145/3627673.3679923</a>.","chicago":"Qudus, Umair, Michael Röder, Daniel Vollmers, and Axel-Cyrille Ngonga Ngomo. “ExPrompt: Augmenting Prompts Using Examples as Modern Baseline for Stance Classification.” In <i>Proceedings of the 33rd ACM International Conference on Information and Knowledge Management</i>, 9:3994–99. ACM, 2024. <a href=\"https://doi.org/10.1145/3627673.3679923\">https://doi.org/10.1145/3627673.3679923</a>."},"user_id":"83392","_id":"56983","project":[{"_id":"412","name":"NEBULA: Nutzerzentrierte KI-basierte Erkennung von Fake-News und Fehlinformationen"}],"file_date_updated":"2024-11-11T13:24:19Z","popular_science":"1","type":"conference","status":"public","date_created":"2024-11-11T13:15:25Z","publisher":"ACM","title":"ExPrompt: Augmenting Prompts Using Examples as Modern Baseline for Stance Classification","quality_controlled":"1","year":"2024","language":[{"iso":"eng"}],"keyword":["Stance Classification","Few-shot in-context learning","Pre-trained large language models"],"ddc":["006"],"publication":"Proceedings of the 33rd ACM International Conference on Information and Knowledge Management","file":[{"file_id":"56984","access_level":"closed","file_name":"public.pdf","file_size":531579,"date_created":"2024-11-11T13:24:19Z","creator":"uqudus","date_updated":"2024-11-11T13:24:19Z","relation":"main_file","success":1,"content_type":"application/pdf"}],"abstract":[{"text":"Detecting the veracity of a statement automatically is a challenge the world is grappling with due to the vast amount of data spread across the web. Verifying a given claim typically entails validating it within the framework of supporting evidence like a retrieved piece of text. Classifying the stance of the text with respect to the claim is called stance classification. Despite advancements in automated fact-checking, most systems still rely on a substantial quantity of labeled training data, which can be costly. In this work, we avoid the costly training or fine-tuning of models by reusing pre-trained large language models together with few-shot in-context learning. Since we do not train any model, our approach ExPrompt is lightweight, demands fewer resources than other stance classification methods and can serve as a modern baseline for future developments. At the same time, our evaluation shows that our approach is able to outperform former state-of-the-art stance classification approaches regarding accuracy by at least 2 percent. Our scripts and data used in this paper are available at https://github.com/dice-group/ExPrompt.","lang":"eng"}]},{"date_updated":"2023-02-06T14:39:51Z","date_created":"2022-09-27T12:39:12Z","author":[{"last_name":"Rieskamp","id":"77643","full_name":"Rieskamp, Jonas","first_name":"Jonas"},{"full_name":"Hofeditz, Lennart","last_name":"Hofeditz","first_name":"Lennart"},{"last_name":"Mirbabaie","id":"88691","full_name":"Mirbabaie, Milad","first_name":"Milad"},{"last_name":"Stieglitz","full_name":"Stieglitz, Stefan","first_name":"Stefan"}],"title":"Approaches to Improve Fairness when Deploying AI-based Algorithms in Hiring – Using a Systematic Literature Review to Guide Future Research","main_file_link":[{"url":"https://hdl.handle.net/10125/102654"}],"conference":{"end_date":"2023-01-06","start_date":"2023-01-03","name":"Proceedings of the Annual Hawaii International Conference on System Sciences (HICSS)"},"year":"2023","citation":{"short":"J. Rieskamp, L. Hofeditz, M. Mirbabaie, S. Stieglitz, in: Proceedings of the Annual Hawaii International Conference on System Sciences (HICSS), 2023.","bibtex":"@inproceedings{Rieskamp_Hofeditz_Mirbabaie_Stieglitz_2023, title={Approaches to Improve Fairness when Deploying AI-based Algorithms in Hiring – Using a Systematic Literature Review to Guide Future Research}, booktitle={Proceedings of the Annual Hawaii International Conference on System Sciences (HICSS)}, author={Rieskamp, Jonas and Hofeditz, Lennart and Mirbabaie, Milad and Stieglitz, Stefan}, year={2023} }","mla":"Rieskamp, Jonas, et al. “Approaches to Improve Fairness When Deploying AI-Based Algorithms in Hiring – Using a Systematic Literature Review to Guide Future Research.” <i>Proceedings of the Annual Hawaii International Conference on System Sciences (HICSS)</i>, 2023.","apa":"Rieskamp, J., Hofeditz, L., Mirbabaie, M., &#38; Stieglitz, S. (2023). Approaches to Improve Fairness when Deploying AI-based Algorithms in Hiring – Using a Systematic Literature Review to Guide Future Research. <i>Proceedings of the Annual Hawaii International Conference on System Sciences (HICSS)</i>. Proceedings of the Annual Hawaii International Conference on System Sciences (HICSS).","chicago":"Rieskamp, Jonas, Lennart Hofeditz, Milad Mirbabaie, and Stefan Stieglitz. “Approaches to Improve Fairness When Deploying AI-Based Algorithms in Hiring – Using a Systematic Literature Review to Guide Future Research.” In <i>Proceedings of the Annual Hawaii International Conference on System Sciences (HICSS)</i>, 2023.","ieee":"J. Rieskamp, L. Hofeditz, M. Mirbabaie, and S. Stieglitz, “Approaches to Improve Fairness when Deploying AI-based Algorithms in Hiring – Using a Systematic Literature Review to Guide Future Research,” presented at the Proceedings of the Annual Hawaii International Conference on System Sciences (HICSS), 2023.","ama":"Rieskamp J, Hofeditz L, Mirbabaie M, Stieglitz S. Approaches to Improve Fairness when Deploying AI-based Algorithms in Hiring – Using a Systematic Literature Review to Guide Future Research. In: <i>Proceedings of the Annual Hawaii International Conference on System Sciences (HICSS)</i>. ; 2023."},"_id":"33490","user_id":"77643","keyword":["fairness in AI","SLR","hiring","AI implementation","AI-based algorithms"],"language":[{"iso":"eng"}],"type":"conference","publication":"Proceedings of the Annual Hawaii International Conference on System Sciences (HICSS)","abstract":[{"lang":"eng","text":"Algorithmic fairness in Information Systems (IS) is a concept that aims to mitigate systematic discrimination and bias in automated decision-making. However, previous research argued that different fairness criteria are often incompatible. In hiring, AI is used to assess and rank applicants according to their fit for vacant positions. However, various types of bias also exist for AI-based algorithms (e.g., using biased historical data). To reduce AI’s bias and thereby unfair treatment, we conducted a systematic literature review to identify suitable strategies for the context of hiring. We identified nine fundamental articles in this context and extracted four types of approaches to address unfairness in AI, namely pre-process, in-process, post-process, and feature selection. Based on our findings, we (a) derived a research agenda for future studies and (b) proposed strategies for practitioners who design and develop AIs for hiring purposes."}],"status":"public"},{"file_date_updated":"2023-03-25T10:01:03Z","_id":"31849","user_id":"32202","department":[{"_id":"97"}],"editor":[{"full_name":"Trigueros, Marı́a","last_name":"Trigueros","first_name":"Marı́a"},{"full_name":"Barquero, Berta","last_name":"Barquero","first_name":"Berta"},{"last_name":"Hochmuth","full_name":"Hochmuth, Reinhard","first_name":"Reinhard"},{"full_name":"Peters, Jana","last_name":"Peters","first_name":"Jana"}],"status":"public","type":"conference","main_file_link":[{"url":"https://hal.univ-reims.fr/INDRUM2022/","open_access":"1"}],"oa":"1","date_updated":"2023-03-25T10:11:35Z","author":[{"id":"32202","full_name":"Hoffmann, Max","last_name":"Hoffmann","orcid":"0000-0002-6964-7123","first_name":"Max"},{"last_name":"Biehler","full_name":"Biehler, Rolf","id":"16274","first_name":"Rolf"}],"place":"Hannover","citation":{"ama":"Hoffmann M, Biehler R. Student Teachers ’ Knowledge of Congruence before a University Course on Geometry. In: Trigueros M, Barquero B, Hochmuth R, Peters J, eds. <i>Proceedings of the Fourth Conference of the International Network for Didactic Research in University Mathematics (INDRUM 2022, 19-22 October 2022)</i>. University of Hannover and INDRUM.; 2023.","ieee":"M. Hoffmann and R. Biehler, “Student Teachers ’ Knowledge of Congruence before a University Course on Geometry,” in <i>Proceedings of the Fourth Conference of the International Network for Didactic Research in University Mathematics (INDRUM 2022, 19-22 October 2022)</i>, 2023.","chicago":"Hoffmann, Max, and Rolf Biehler. “Student Teachers ’ Knowledge of Congruence before a University Course on Geometry.” In <i>Proceedings of the Fourth Conference of the International Network for Didactic Research in University Mathematics (INDRUM 2022, 19-22 October 2022)</i>, edited by Marı́a Trigueros, Berta Barquero, Reinhard Hochmuth, and Jana Peters. Hannover: University of Hannover and INDRUM., 2023.","apa":"Hoffmann, M., &#38; Biehler, R. (2023). Student Teachers ’ Knowledge of Congruence before a University Course on Geometry. In M. Trigueros, B. Barquero, R. Hochmuth, &#38; J. Peters (Eds.), <i>Proceedings of the Fourth Conference of the International Network for Didactic Research in University Mathematics (INDRUM 2022, 19-22 October 2022)</i>. University of Hannover and INDRUM.","short":"M. Hoffmann, R. Biehler, in: M. Trigueros, B. Barquero, R. Hochmuth, J. Peters (Eds.), Proceedings of the Fourth Conference of the International Network for Didactic Research in University Mathematics (INDRUM 2022, 19-22 October 2022), University of Hannover and INDRUM., Hannover, 2023.","mla":"Hoffmann, Max, and Rolf Biehler. “Student Teachers ’ Knowledge of Congruence before a University Course on Geometry.” <i>Proceedings of the Fourth Conference of the International Network for Didactic Research in University Mathematics (INDRUM 2022, 19-22 October 2022)</i>, edited by Marı́a Trigueros et al., University of Hannover and INDRUM., 2023.","bibtex":"@inproceedings{Hoffmann_Biehler_2023, place={Hannover}, title={Student Teachers ’ Knowledge of Congruence before a University Course on Geometry}, booktitle={Proceedings of the Fourth Conference of the International Network for Didactic Research in University Mathematics (INDRUM 2022, 19-22 October 2022)}, publisher={University of Hannover and INDRUM.}, author={Hoffmann, Max and Biehler, Rolf}, editor={Trigueros, Marı́a and Barquero, Berta and Hochmuth, Reinhard and Peters, Jana}, year={2023} }"},"publication_status":"published","has_accepted_license":"1","ddc":["370","510"],"keyword":["Teaching and learning of specific topics in university mathematics","Transition to","across and from university mathematics","Student Teachers","Geometry","Congruence","Double Discontinuity."],"language":[{"iso":"eng"}],"file":[{"content_type":"application/pdf","relation":"main_file","success":1,"date_created":"2023-03-25T10:01:03Z","creator":"maxh","date_updated":"2023-03-25T10:01:03Z","file_id":"43096","file_name":"HoffmannBiehler2022_indrum_congruence.pdf","access_level":"closed","file_size":201942}],"publication":"Proceedings of the Fourth Conference of the International Network for Didactic Research in University Mathematics (INDRUM 2022, 19-22 October 2022)","title":"Student Teachers ’ Knowledge of Congruence before a University Course on Geometry","publisher":"University of Hannover and INDRUM.","date_created":"2022-06-12T11:07:34Z","year":"2023","quality_controlled":"1"},{"year":"2023","citation":{"apa":"Brosig-Koch, J., Hehenkamp, B., &#38; Kokot, J. (2023). Who benefits from quality competition in health care? A theory and a laboratory experiment on the relevance of patient characteristics. <i>Health Economics</i>. <a href=\"https://doi.org/10.1002/hec.4689\">https://doi.org/10.1002/hec.4689</a>","short":"J. Brosig-Koch, B. Hehenkamp, J. Kokot, Health Economics (2023).","bibtex":"@article{Brosig-Koch_Hehenkamp_Kokot_2023, title={Who benefits from quality competition in health care? A theory and a laboratory experiment on the relevance of patient characteristics}, DOI={<a href=\"https://doi.org/10.1002/hec.4689\">10.1002/hec.4689</a>}, journal={Health Economics}, author={Brosig-Koch, Jeannette and Hehenkamp, Burkhard and Kokot, Johanna}, year={2023} }","mla":"Brosig-Koch, Jeannette, et al. “Who Benefits from Quality Competition in Health Care? A Theory and a Laboratory Experiment on the Relevance of Patient Characteristics.” <i>Health Economics</i>, 2023, doi:<a href=\"https://doi.org/10.1002/hec.4689\">10.1002/hec.4689</a>.","ama":"Brosig-Koch J, Hehenkamp B, Kokot J. Who benefits from quality competition in health care? A theory and a laboratory experiment on the relevance of patient characteristics. <i>Health Economics</i>. Published online 2023. doi:<a href=\"https://doi.org/10.1002/hec.4689\">10.1002/hec.4689</a>","chicago":"Brosig-Koch, Jeannette, Burkhard Hehenkamp, and Johanna Kokot. “Who Benefits from Quality Competition in Health Care? A Theory and a Laboratory Experiment on the Relevance of Patient Characteristics.” <i>Health Economics</i>, 2023. <a href=\"https://doi.org/10.1002/hec.4689\">https://doi.org/10.1002/hec.4689</a>.","ieee":"J. Brosig-Koch, B. Hehenkamp, and J. Kokot, “Who benefits from quality competition in health care? A theory and a laboratory experiment on the relevance of patient characteristics,” <i>Health Economics</i>, 2023, doi: <a href=\"https://doi.org/10.1002/hec.4689\">10.1002/hec.4689</a>."},"jel":["I11","D43","C91"],"quality_controlled":"1","title":"Who benefits from quality competition in health care? A theory and a laboratory experiment on the relevance of patient characteristics","doi":"10.1002/hec.4689","date_updated":"2023-04-20T17:16:14Z","author":[{"last_name":"Brosig-Koch","full_name":"Brosig-Koch, Jeannette","first_name":"Jeannette"},{"last_name":"Hehenkamp","id":"37339","full_name":"Hehenkamp, Burkhard","first_name":"Burkhard"},{"first_name":"Johanna","last_name":"Kokot","full_name":"Kokot, Johanna"}],"date_created":"2023-04-20T17:02:41Z","abstract":[{"text":"We study how competition between physicians affects the provision of medical care. In\r\nour theoretical model, physicians are faced with a heterogeneous patient population, in which patients\r\nsystematically vary with regard to both their responsiveness to the provided quality of care and their\r\nstate of health. We test the behavioral predictions derived from this model in a controlled laboratory\r\nexperiment. In line with the model, we observe that competition significantly improves patient benefits\r\nas long as patients are able to respond to the quality provided. For those patients, who are not able\r\nto choose a physician, competition even decreases the patient benefit compared to a situation without\r\ncompetition. This decrease is in contrast to our theoretical prediction implying no change in benefits for\r\npassive patients. Deviations from patient-optimal treatment are highest for passive patients in need of\r\na low quantity of medical services. With repetition, both, the positive effects of competition for active\r\npatients as well as the negative effects of competition for passive patients become more pronounced. Our\r\nresults imply that competition can not only improve but also worsen patient outcome and that patients’\r\nresponsiveness to quality is decisive.","lang":"eng"}],"status":"public","type":"journal_article","publication":"Health Economics","article_type":"original","keyword":["physician competition","patient characteristics","heterogeneity in quality responses","fee-for-service","laboratory experiment"],"language":[{"iso":"eng"}],"project":[{"name":"SFB 901: SFB 901","_id":"1"},{"name":"SFB 901 - A: SFB 901 - Project Area A","_id":"2"},{"name":"SFB 901 - A3: SFB 901 - Subproject A3","_id":"7"}],"_id":"44092","user_id":"37339","department":[{"_id":"280"},{"_id":"475"}]},{"abstract":[{"lang":"eng","text":"Abstract In this work, we report on an improved cell assembly of cylindrical electrochemical cells for 23Na in-situ solid-state NMR (ssNMR) investigations. The cell set-up is suitable for using powder electrode materials. Reproducibility of our cell assembly is analyzed by preparing two cells containing hard carbon (HC) powder as working electrode and sodium metal as reference electrode. Electrochemical storage properties of HC powder electrode derived from carbonization of sustainable cellulose are studied by ssNMR. 23Na in-situ ssNMR monitors the sodiation/desodiation of a Na{\\textbar}NaPF6{\\textbar}HC cell (cell 1) over a period of 22?days, showing high cell stability. After the galvanostatic process, the HC powder material is investigated by high resolution 23Na ex-situ MAS NMR. The formation of ionic sodium species in different chemical environments is obtained. Subsequently, a second Na{\\textbar}NaPF6{\\textbar}HC cell (cell 2) is sodiated for 11?days achieving a capacity of 220?mAh/g. 23Na ex-situ MAS NMR measurements of the HC powder material extracted from this cell clearly indicate the presence of quasi-metallic sodium species next to ionic sodium species. This observation of quasi-metallic sodium species is discussed in terms of the achieved capacity of the cell as well as of side reactions of sodium in this electrode material."}],"status":"public","publication":"Chemsuschem","type":"journal_article","keyword":["solid-state nmr","hard carbon","electrochemical cells","in-situ characterization","sodium"],"language":[{"iso":"eng"}],"extern":"1","_id":"64045","user_id":"100715","year":"2023","page":"e202301300","intvolume":"        17","citation":{"chicago":"Šić, Edina, Konstantin Schutjajew, Ulrich Haagen, Hergen Breitzke, Martin Oschatz, Gerd Buntkowsky, and Torsten Gutmann. “Electrochemical Sodium Storage in Hard Carbon Powder Electrodes Implemented in an Improved Cell Assembly: Insights from In-Situ and Ex-Situ Solid-State NMR.” <i>Chemsuschem</i> 17 (2023): e202301300. <a href=\"https://doi.org/10.1002/cssc.202301300\">https://doi.org/10.1002/cssc.202301300</a>.","ieee":"E. Šić <i>et al.</i>, “Electrochemical Sodium Storage in Hard Carbon Powder Electrodes Implemented in an Improved Cell Assembly: Insights from In-Situ and Ex-Situ Solid-State NMR,” <i>Chemsuschem</i>, vol. 17, p. e202301300, 2023, doi: <a href=\"https://doi.org/10.1002/cssc.202301300\">10.1002/cssc.202301300</a>.","ama":"Šić E, Schutjajew K, Haagen U, et al. Electrochemical Sodium Storage in Hard Carbon Powder Electrodes Implemented in an Improved Cell Assembly: Insights from In-Situ and Ex-Situ Solid-State NMR. <i>Chemsuschem</i>. 2023;17:e202301300. doi:<a href=\"https://doi.org/10.1002/cssc.202301300\">10.1002/cssc.202301300</a>","short":"E. Šić, K. Schutjajew, U. Haagen, H. Breitzke, M. Oschatz, G. Buntkowsky, T. Gutmann, Chemsuschem 17 (2023) e202301300.","mla":"Šić, Edina, et al. “Electrochemical Sodium Storage in Hard Carbon Powder Electrodes Implemented in an Improved Cell Assembly: Insights from In-Situ and Ex-Situ Solid-State NMR.” <i>Chemsuschem</i>, vol. 17, John Wiley &#38; Sons, Ltd, 2023, p. e202301300, doi:<a href=\"https://doi.org/10.1002/cssc.202301300\">10.1002/cssc.202301300</a>.","bibtex":"@article{Šić_Schutjajew_Haagen_Breitzke_Oschatz_Buntkowsky_Gutmann_2023, title={Electrochemical Sodium Storage in Hard Carbon Powder Electrodes Implemented in an Improved Cell Assembly: Insights from In-Situ and Ex-Situ Solid-State NMR}, volume={17}, DOI={<a href=\"https://doi.org/10.1002/cssc.202301300\">10.1002/cssc.202301300</a>}, journal={Chemsuschem}, publisher={John Wiley &#38; Sons, Ltd}, author={Šić, Edina and Schutjajew, Konstantin and Haagen, Ulrich and Breitzke, Hergen and Oschatz, Martin and Buntkowsky, Gerd and Gutmann, Torsten}, year={2023}, pages={e202301300} }","apa":"Šić, E., Schutjajew, K., Haagen, U., Breitzke, H., Oschatz, M., Buntkowsky, G., &#38; Gutmann, T. (2023). Electrochemical Sodium Storage in Hard Carbon Powder Electrodes Implemented in an Improved Cell Assembly: Insights from In-Situ and Ex-Situ Solid-State NMR. <i>Chemsuschem</i>, <i>17</i>, e202301300. <a href=\"https://doi.org/10.1002/cssc.202301300\">https://doi.org/10.1002/cssc.202301300</a>"},"publication_identifier":{"issn":["1864-5631"]},"title":"Electrochemical Sodium Storage in Hard Carbon Powder Electrodes Implemented in an Improved Cell Assembly: Insights from In-Situ and Ex-Situ Solid-State NMR","doi":"10.1002/cssc.202301300","date_updated":"2026-02-17T16:13:10Z","publisher":"John Wiley & Sons, Ltd","volume":17,"author":[{"full_name":"Šić, Edina","last_name":"Šić","first_name":"Edina"},{"first_name":"Konstantin","full_name":"Schutjajew, Konstantin","last_name":"Schutjajew"},{"first_name":"Ulrich","last_name":"Haagen","full_name":"Haagen, Ulrich"},{"last_name":"Breitzke","full_name":"Breitzke, Hergen","first_name":"Hergen"},{"first_name":"Martin","last_name":"Oschatz","full_name":"Oschatz, Martin"},{"last_name":"Buntkowsky","full_name":"Buntkowsky, Gerd","first_name":"Gerd"},{"id":"118165","full_name":"Gutmann, Torsten","last_name":"Gutmann","first_name":"Torsten"}],"date_created":"2026-02-07T16:12:13Z"}]