--- _id: '61310' 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 full_name: Schäfer, Jannika Marie id: '74374' last_name: Schäfer - first_name: Polina full_name: Rajko, Polina last_name: Rajko - first_name: Daniela full_name: Angelova, Daniela last_name: Angelova - first_name: Tilo full_name: Böhmann, Tilo last_name: Böhmann citation: 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: 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); 2026.' apa: 'Schäfer, J. M., Rajko, P., Angelova, D., & Böhmann, T. (2026). From Engineering to Shaping: A Multiple Case Study on Advancing Service Systems Engineering through Continuous Value Shaping. Proceedings of the 59th Hawaii International Conference on System Sciences (HICSS 2026). 59th Hawaii International Conference on System Sciences (HICSS 2026), Maui, Maui, Hawaii, USA.' 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} }' 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 Proceedings of the 59th Hawaii International Conference on System Sciences (HICSS 2026). 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.' mla: 'Schäfer, Jannika Marie, et al. “From Engineering to Shaping: A Multiple Case Study on Advancing Service Systems Engineering through Continuous Value Shaping.” 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), 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.' conference: end_date: 2026-01-09 location: Maui, Maui, Hawaii, USA name: 59th Hawaii International Conference on System Sciences (HICSS 2026) start_date: 2026-01-06 date_created: 2025-09-16T13:55:52Z date_updated: 2026-02-05T06:57:02Z department: - _id: '195' jel: - M15 keyword: - Continuous Value Shaping - Service Systems Engineering - Service Science - Public Sector - Service Innovation language: - iso: eng place: Maui, Hawaii, USA project: - _id: '1250' name: 'SHAPE : Gestaltung von Dienstleistungsentwicklungsprozessen und lnnovationspartnerschaften mit Unternehmen' publication: Proceedings of the 59th Hawaii International Conference on System Sciences (HICSS 2026) publication_status: published publisher: Association for Information Systems (AIS), IEEE Computer Society Press, University of Hawaii (Manoa) quality_controlled: '1' status: public title: 'From Engineering to Shaping: A Multiple Case Study on Advancing Service Systems Engineering through Continuous Value Shaping' type: conference user_id: '74374' year: '2026' ... --- _id: '64678' abstract: - lang: eng text: "One of the major topics in the modern automotive industry is reducing emissions and increasing the mileage\r\nrange. To tackle this challenge, on the one hand, modifying the powertrain system is a possibility, and on the\r\nother hand, lightweight design offers various possibilities. Multi-Material Design (MMD) involves designing car\r\nbodies that combine different materials that require joining. Given the variety of materials, mechanical joining\r\nprocesses are preferred. Especially the current development of the Giga/Mega-casting process concerning\r\naluminium casting and the subsequent mechanical joining illustrates the challenges of this material group. In car\r\nproduction, aluminium castings are mainly made from aluminium-silicon (AlSi) alloys. Ultimately, the alloy\r\nsystem's insufficient ductility leads to crack initiation during mechanical joining. Cast parts are therefore often\r\nused in areas of the car body that are exposed to high-pressure loads. For example, self-piercing riveting (SPR) is\r\nused due to its high load-bearing capacity. In this study, improved joinability is demonstrated by influencing the\r\nmicrostructure through tailored solidification rates and a developed heat-treatment chain strategy adapted for\r\nhypoeutectic AlSi systems. Data on microstructure, mechanical, and joining properties are used to develop a\r\nsolidification-joining correlation for the SPR process across a range of Si contents and solidification rates. The\r\npurpose is to develop the ability to produce suitable aluminium castings with sufficient joinability, thereby\r\nimproving versatility." article_type: original author: - first_name: Moritz full_name: Neuser, Moritz id: '32340' last_name: Neuser - first_name: Pia Katharina full_name: Kaimann, Pia Katharina id: '44935' last_name: Kaimann - first_name: Ina full_name: Stratmann, Ina last_name: Stratmann - first_name: Mathias full_name: Bobbert, Mathias id: '7850' last_name: Bobbert - first_name: Johann Moritz Benedikt full_name: Klöckner, Johann Moritz Benedikt last_name: Klöckner - first_name: Moritz full_name: Mann, Moritz last_name: Mann - first_name: Kay-Peter full_name: Hoyer, Kay-Peter id: '48411' last_name: Hoyer - first_name: Gerson full_name: Meschut, Gerson id: '32056' last_name: Meschut orcid: 0000-0002-2763-1246 - first_name: Mirko full_name: Schaper, Mirko id: '43720' last_name: Schaper citation: ama: Neuser M, Kaimann PK, Stratmann I, et al. Solidification-joinability correlation of hypoeutectic aluminium casting alloys for self-piercing riveting (SPR). Journal of Manufacturing Processes. 2026;164. doi:https://doi.org/10.1016/j.jmapro.2026.02.040 apa: Neuser, M., Kaimann, P. K., Stratmann, I., Bobbert, M., Klöckner, J. M. B., Mann, M., Hoyer, K.-P., Meschut, G., & Schaper, M. (2026). Solidification-joinability correlation of hypoeutectic aluminium casting alloys for self-piercing riveting (SPR). Journal of Manufacturing Processes, 164. https://doi.org/10.1016/j.jmapro.2026.02.040 bibtex: '@article{Neuser_Kaimann_Stratmann_Bobbert_Klöckner_Mann_Hoyer_Meschut_Schaper_2026, title={Solidification-joinability correlation of hypoeutectic aluminium casting alloys for self-piercing riveting (SPR)}, volume={164}, DOI={https://doi.org/10.1016/j.jmapro.2026.02.040}, journal={Journal of Manufacturing Processes}, publisher={Elsevier}, author={Neuser, Moritz and Kaimann, Pia Katharina and Stratmann, Ina and Bobbert, Mathias and Klöckner, Johann Moritz Benedikt and Mann, Moritz and Hoyer, Kay-Peter and Meschut, Gerson and Schaper, Mirko}, year={2026} }' chicago: Neuser, Moritz, Pia Katharina Kaimann, Ina Stratmann, Mathias Bobbert, Johann Moritz Benedikt Klöckner, Moritz Mann, Kay-Peter Hoyer, Gerson Meschut, and Mirko Schaper. “Solidification-Joinability Correlation of Hypoeutectic Aluminium Casting Alloys for Self-Piercing Riveting (SPR).” Journal of Manufacturing Processes 164 (2026). https://doi.org/10.1016/j.jmapro.2026.02.040. ieee: 'M. Neuser et al., “Solidification-joinability correlation of hypoeutectic aluminium casting alloys for self-piercing riveting (SPR),” Journal of Manufacturing Processes, vol. 164, 2026, doi: https://doi.org/10.1016/j.jmapro.2026.02.040.' mla: Neuser, Moritz, et al. “Solidification-Joinability Correlation of Hypoeutectic Aluminium Casting Alloys for Self-Piercing Riveting (SPR).” Journal of Manufacturing Processes, vol. 164, Elsevier, 2026, doi:https://doi.org/10.1016/j.jmapro.2026.02.040. short: M. Neuser, P.K. Kaimann, I. Stratmann, M. Bobbert, J.M.B. Klöckner, M. Mann, K.-P. Hoyer, G. Meschut, M. Schaper, Journal of Manufacturing Processes 164 (2026). date_created: 2026-02-26T11:21:24Z date_updated: 2026-02-26T11:22:03Z department: - _id: '43' - _id: '158' - _id: '157' - _id: '321' doi: https://doi.org/10.1016/j.jmapro.2026.02.040 funded_apc: '1' intvolume: ' 164' keyword: - Mechanical joining - Aluminium - Self-piercing riveting - Casting - Microstructure - Joinability AlSi-alloys language: - iso: eng project: - _id: '131' name: TRR 285 - Project Area A - _id: '133' name: TRR 285 - Project Area C - _id: '136' name: TRR 285 - Subproject A02 - _id: '146' name: TRR 285 - Subproject C02 - _id: '130' name: 'TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten' publication: Journal of Manufacturing Processes publication_status: published publisher: Elsevier quality_controlled: '1' status: public title: Solidification-joinability correlation of hypoeutectic aluminium casting alloys for self-piercing riveting (SPR) type: journal_article user_id: '32340' volume: 164 year: '2026' ... --- _id: '64985' abstract: - lang: eng text: Modern industrial development has necessitated a wide range of joining technologies. Self-pierce riveting has become a prevalent technique for sheet metal assembly, especially in automotive applications. Achieving proper joint geometry and adequate load-bearing capacity depends on appropriate tool selection and precise process control. Material properties and condition also play a significant role in process performance. To accommodate the inevitable variations in component characteristics during production, a robust and stable joining process is essential. The study focuses on investigating the influence of preformed joining partners on the joining process and the joint's load capacity. An EN AW-6014 in T4 condition, as well as an HCT590X, are used as materials for this study. For this purpose, an exemplary process chain consisting of the steps of performing, joining, and shear load testing is studied. Each process step is implemented using an FE model to predict the outcome of subsequent steps. For analysis of the influence of pre-strain, an optimisation software is used to plan and execute variations of the process. These variations are used to create a meta-model that can describe the relationships between pre-forming and characteristic parameters of subsequent process steps. The resulting model is validated by comparing simulation and experimental data. Finally, in a novel approach, the robustness of the presented process chain is analyzed in terms of a tolerable performance level for the joining partners. article_number: '100391' author: - first_name: Jean-Patrick full_name: Ludwig, Jean-Patrick id: '76631' last_name: Ludwig - first_name: Emil full_name: Tolke, Emil last_name: Tolke - first_name: Malte Christian full_name: Schlichter, Malte Christian id: '61977' last_name: Schlichter - first_name: Mathias full_name: Bobbert, Mathias id: '7850' last_name: Bobbert - first_name: Gerson full_name: Meschut, Gerson id: '32056' last_name: Meschut orcid: 0000-0002-2763-1246 citation: ama: Ludwig J-P, Tolke E, Schlichter MC, Bobbert M, Meschut G. Numerical analysis of the robustness of self-pierce riveting with pre-formed joining partners. Journal of Advanced Joining Processes. 2026;13. doi:10.1016/j.jajp.2026.100391 apa: Ludwig, J.-P., Tolke, E., Schlichter, M. C., Bobbert, M., & Meschut, G. (2026). Numerical analysis of the robustness of self-pierce riveting with pre-formed joining partners. Journal of Advanced Joining Processes, 13, Article 100391. https://doi.org/10.1016/j.jajp.2026.100391 bibtex: '@article{Ludwig_Tolke_Schlichter_Bobbert_Meschut_2026, title={Numerical analysis of the robustness of self-pierce riveting with pre-formed joining partners}, volume={13}, DOI={10.1016/j.jajp.2026.100391}, number={100391}, journal={Journal of Advanced Joining Processes}, publisher={Elsevier BV}, author={Ludwig, Jean-Patrick and Tolke, Emil and Schlichter, Malte Christian and Bobbert, Mathias and Meschut, Gerson}, year={2026} }' chicago: Ludwig, Jean-Patrick, Emil Tolke, Malte Christian Schlichter, Mathias Bobbert, and Gerson Meschut. “Numerical Analysis of the Robustness of Self-Pierce Riveting with Pre-Formed Joining Partners.” Journal of Advanced Joining Processes 13 (2026). https://doi.org/10.1016/j.jajp.2026.100391. ieee: 'J.-P. Ludwig, E. Tolke, M. C. Schlichter, M. Bobbert, and G. Meschut, “Numerical analysis of the robustness of self-pierce riveting with pre-formed joining partners,” Journal of Advanced Joining Processes, vol. 13, Art. no. 100391, 2026, doi: 10.1016/j.jajp.2026.100391.' mla: Ludwig, Jean-Patrick, et al. “Numerical Analysis of the Robustness of Self-Pierce Riveting with Pre-Formed Joining Partners.” Journal of Advanced Joining Processes, vol. 13, 100391, Elsevier BV, 2026, doi:10.1016/j.jajp.2026.100391. short: J.-P. Ludwig, E. Tolke, M.C. Schlichter, M. Bobbert, G. Meschut, Journal of Advanced Joining Processes 13 (2026). date_created: 2026-03-16T12:30:39Z date_updated: 2026-03-16T12:38:13Z department: - _id: '9' doi: 10.1016/j.jajp.2026.100391 intvolume: ' 13' keyword: - Self-pierce riveting - FE modelling - Plastic pre-deformation - Meta modelling language: - iso: eng project: - _id: '131' name: TRR 285 - Project Area A - _id: '135' name: TRR 285 - Subproject A01 - _id: '130' name: 'TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten' publication: Journal of Advanced Joining Processes publication_identifier: issn: - 2666-3309 publication_status: published publisher: Elsevier BV quality_controlled: '1' status: public title: Numerical analysis of the robustness of self-pierce riveting with pre-formed joining partners type: journal_article user_id: '76631' volume: 13 year: '2026' ... --- _id: '65476' abstract: - lang: eng text: Service research has evolved into an interdisciplinary research field that bridges diverse disciplines, including information systems (IS) and marketing. Nearly two decades ago, the service system concept was introduced as a foundational abstraction in service research, drawing on ideas from the service-dominant logic (S-D logic) of marketing. Despite its widespread adoption in service research, particularly in the IS discipline, the service system concept lacks a solid theoretical foundation. This has resulted in conceptual ambiguity and overlap with related constructs, such as service ecosystems. Moreover, it has largely remained a static analytical lens, insufficiently capturing dynamic service phenomena, including value co-creation and co-destruction, as well as the emergence of institutional arrangements. To address these limitations, we propose Luhmann’s systems theory (LST) as a robust framework for conceptualizing service systems as autopoietic (self-creating) systems, in which communication serves as the fundamental mechanism that drives value co-creation. We derive five theoretical propositions from this re-conceptualization that clarify conceptual ambiguity and allow researchers to explore dynamic service phenomena in greater depth. Given LST’s general approach, our conceptualization provides a theoretically grounded, interdisciplinary foundation for advancing service research. article_number: '37' article_type: original author: - first_name: Daniel full_name: Beverungen, Daniel last_name: Beverungen - first_name: Jens full_name: Poeppelbuss, Jens last_name: Poeppelbuss - first_name: Simon full_name: Hemmrich, Simon last_name: Hemmrich - first_name: Taskeen full_name: Iqbal, Taskeen last_name: Iqbal citation: ama: Beverungen D, Poeppelbuss J, Hemmrich S, Iqbal T. Service through communication—Conceptualizing service systems with Luhmann’s systems theory. Electronic Markets. 2026;36(1). doi:10.1007/s12525-026-00889-w apa: Beverungen, D., Poeppelbuss, J., Hemmrich, S., & Iqbal, T. (2026). Service through communication—Conceptualizing service systems with Luhmann’s systems theory. Electronic Markets, 36(1), Article 37. https://doi.org/10.1007/s12525-026-00889-w bibtex: '@article{Beverungen_Poeppelbuss_Hemmrich_Iqbal_2026, title={Service through communication—Conceptualizing service systems with Luhmann’s systems theory}, volume={36}, DOI={10.1007/s12525-026-00889-w}, number={137}, journal={Electronic Markets}, publisher={Springer Science and Business Media LLC}, author={Beverungen, Daniel and Poeppelbuss, Jens and Hemmrich, Simon and Iqbal, Taskeen}, year={2026} }' chicago: Beverungen, Daniel, Jens Poeppelbuss, Simon Hemmrich, and Taskeen Iqbal. “Service through Communication—Conceptualizing Service Systems with Luhmann’s Systems Theory.” Electronic Markets 36, no. 1 (2026). https://doi.org/10.1007/s12525-026-00889-w. ieee: 'D. Beverungen, J. Poeppelbuss, S. Hemmrich, and T. Iqbal, “Service through communication—Conceptualizing service systems with Luhmann’s systems theory,” Electronic Markets, vol. 36, no. 1, Art. no. 37, 2026, doi: 10.1007/s12525-026-00889-w.' mla: Beverungen, Daniel, et al. “Service through Communication—Conceptualizing Service Systems with Luhmann’s Systems Theory.” Electronic Markets, vol. 36, no. 1, 37, Springer Science and Business Media LLC, 2026, doi:10.1007/s12525-026-00889-w. short: D. Beverungen, J. Poeppelbuss, S. Hemmrich, T. Iqbal, Electronic Markets 36 (2026). date_created: 2026-04-21T13:13:02Z date_updated: 2026-04-21T13:18:35Z ddc: - '380' department: - _id: '195' - _id: '534' doi: 10.1007/s12525-026-00889-w file: - access_level: closed content_type: application/pdf creator: dabe date_created: 2026-04-21T13:14:30Z date_updated: 2026-04-21T13:14:30Z file_id: '65477' file_name: Service is Communication - EM Paper.pdf file_size: 2793039 relation: main_file success: 1 file_date_updated: 2026-04-21T13:14:30Z has_accepted_license: '1' intvolume: ' 36' issue: '1' jel: - L80 keyword: - Service system - Service ecosystem - Systems theory - Service research language: - iso: eng main_file_link: - open_access: '1' url: https://link.springer.com/content/pdf/10.1007/s12525-026-00889-w.pdf oa: '1' project: - _id: '1250' name: 'SHAPE : Gestaltung von Dienstleistungsentwicklungsprozessen und lnnovationspartnerschaften mit Unternehmen' publication: Electronic Markets publication_identifier: issn: - 1019-6781 - 1422-8890 publication_status: published publisher: Springer Science and Business Media LLC quality_controlled: '1' status: public title: Service through communication—Conceptualizing service systems with Luhmann’s systems theory type: journal_article user_id: '59677' volume: 36 year: '2026' ... --- _id: '59708' abstract: - lang: ger text: Die Arbeitszufriedenheit von Lehrkräften gilt als zentrale Komponente für die Qualität des Bil­dungssystems. In inklusiven Schulen müssen Regelschullehrkräfte und sonderpädagogische Lehrkräfte kooperieren, um allen Schüler:innen eine bestmögliche Förderung zu gewährleisten. Dazu benötigen sie jedoch Zeitfenster, die von vielen Lehrkräften als nicht ausreichend benannt werden. Ziel des vorliegenden Beitrags ist es, empirisch zu untersuchen, welche Bedeutung festen Zeitfenstern für die Lehrkräftekooperation im Klassenteam, im Jahrgangsteam und im Fachteam für die Arbeitszufriedenheit zukommt. Weiterhin soll überprüft werden, ob Teile der Zusammenhänge über die Zufriedenheit mit der Kooperationshäufigkeit und die kollektive Selbstwirksamkeitsüberzeugung der Lehrkräfte erklärt werden können. Dazu werden Daten aus dem BMBF-geförderten Projekt BiFoKi mit N=194 Lehrkräften und N=28 Schulleitungen analy­siert. Die Ergebnisse zeigen, dass feste Zeitfenster für die Kooperation in den unterschiedlichen Teams mit einer erhöhten Arbeitszufriedenheit im Zusammenhang stehen und in Teilen über die kollektive Selbstwirksamkeitsüberzeugung mediiert werden. - lang: eng text: The job satisfaction of teachers is considered a central component for the quality of the educa­tion system. In inclusive schools, regular school teachers and special needs teachers must co­operate in order to ensure that all pupils receive the best possible support. To do this, however, they need time slots that many teachers say are not sufficient. The aim of this article is to em­pirically investigate the importance of fixed time slots for teacher cooperation in the class team, the year team and the expert team for job satisfaction. Furthermore, it will be examined whether parts of the correlations can be explained by satisfaction with the frequency of cooperation and the teachers' collective self-efficacy expectations. To this end, data from the BMBF-funded BiFoKi project with N=194 teachers and N=28 head teachers will be analyzed. The results show that fixed time slots for cooperation in the different teams are associated with increased job satisfaction and are mediated in part by collective self-efficacy expectations. alternative_title: - Time for job satisfaction? A quantitative-empirical study on the significance of fixed cooperation times for the job satisfaction of teachers in inclusive schools article_type: original author: - first_name: Verena full_name: Wohnhas, Verena last_name: Wohnhas - first_name: Phillip full_name: Neumann, Phillip id: '95559' last_name: Neumann - first_name: Birgit full_name: Lütje-Klose, Birgit last_name: Lütje-Klose citation: ama: Wohnhas V, Neumann P, Lütje-Klose B. Zeit für Arbeitszufriedenheit? Eine quantitativ-empirische Studie zur Bedeutung fester Kooperationszeiten für die Arbeitszufriedenheit von Lehrkräften in inklusiven Schulen. QfI - Qualifizierung für Inklusion Online-Zeitschrift zur Forschung über Aus-, Fort- und Weiterbildung pädagogischer Fachkräfte. 2025;6(2). doi:10.21248/qfi.167 apa: Wohnhas, V., Neumann, P., & Lütje-Klose, B. (2025). Zeit für Arbeitszufriedenheit? Eine quantitativ-empirische Studie zur Bedeutung fester Kooperationszeiten für die Arbeitszufriedenheit von Lehrkräften in inklusiven Schulen. QfI - Qualifizierung für Inklusion. Online-Zeitschrift zur Forschung über Aus-, Fort- und Weiterbildung pädagogischer Fachkräfte, 6(2). https://doi.org/10.21248/qfi.167 bibtex: '@article{Wohnhas_Neumann_Lütje-Klose_2025, title={Zeit für Arbeitszufriedenheit? Eine quantitativ-empirische Studie zur Bedeutung fester Kooperationszeiten für die Arbeitszufriedenheit von Lehrkräften in inklusiven Schulen}, volume={6}, DOI={10.21248/qfi.167}, number={2}, journal={QfI - Qualifizierung für Inklusion. Online-Zeitschrift zur Forschung über Aus-, Fort- und Weiterbildung pädagogischer Fachkräfte}, publisher={University Library J. C. Senckenberg}, author={Wohnhas, Verena and Neumann, Phillip and Lütje-Klose, Birgit}, year={2025} }' chicago: Wohnhas, Verena, Phillip Neumann, and Birgit Lütje-Klose. “Zeit für Arbeitszufriedenheit? Eine quantitativ-empirische Studie zur Bedeutung fester Kooperationszeiten für die Arbeitszufriedenheit von Lehrkräften in inklusiven Schulen.” QfI - Qualifizierung für Inklusion. Online-Zeitschrift zur Forschung über Aus-, Fort- und Weiterbildung pädagogischer Fachkräfte 6, no. 2 (2025). https://doi.org/10.21248/qfi.167. ieee: 'V. Wohnhas, P. Neumann, and B. Lütje-Klose, “Zeit für Arbeitszufriedenheit? Eine quantitativ-empirische Studie zur Bedeutung fester Kooperationszeiten für die Arbeitszufriedenheit von Lehrkräften in inklusiven Schulen,” QfI - Qualifizierung für Inklusion. Online-Zeitschrift zur Forschung über Aus-, Fort- und Weiterbildung pädagogischer Fachkräfte, vol. 6, no. 2, 2025, doi: 10.21248/qfi.167.' mla: Wohnhas, Verena, et al. “Zeit für Arbeitszufriedenheit? Eine quantitativ-empirische Studie zur Bedeutung fester Kooperationszeiten für die Arbeitszufriedenheit von Lehrkräften in inklusiven Schulen.” QfI - Qualifizierung für Inklusion. Online-Zeitschrift zur Forschung über Aus-, Fort- und Weiterbildung pädagogischer Fachkräfte, vol. 6, no. 2, University Library J. C. Senckenberg, 2025, doi:10.21248/qfi.167. short: V. Wohnhas, P. Neumann, B. Lütje-Klose, QfI - Qualifizierung für Inklusion. Online-Zeitschrift zur Forschung über Aus-, Fort- und Weiterbildung pädagogischer Fachkräfte 6 (2025). date_created: 2025-04-29T08:14:03Z date_updated: 2025-04-29T08:31:28Z department: - _id: '854' doi: 10.21248/qfi.167 intvolume: ' 6' issue: '2' keyword: - Arbeitszufriedenheit - Inklusion - Sonderpädagogik - Kooperation - Selbstwirksamkeit - Schulentwicklung - job satisfaction - Inclusion - Special Education - Self-efficacy - school development language: - iso: ger main_file_link: - open_access: '1' url: https://www.qfi-oz.de/index.php/inklusion/article/view/167 oa: '1' publication: QfI - Qualifizierung für Inklusion. Online-Zeitschrift zur Forschung über Aus-, Fort- und Weiterbildung pädagogischer Fachkräfte publication_identifier: issn: - 2699-2477 publication_status: published publisher: University Library J. C. Senckenberg status: public title: Zeit für Arbeitszufriedenheit? Eine quantitativ-empirische Studie zur Bedeutung fester Kooperationszeiten für die Arbeitszufriedenheit von Lehrkräften in inklusiven Schulen type: journal_article user_id: '95559' volume: 6 year: '2025' ... --- _id: '59872' abstract: - lang: eng text: Lightweight design is a driving concept in modern automotive engineering to minimize resource consumption over a vehicle's lifecycle through multi-material design, which relies on the use of joining techniques in car body fabrication. Multi-material design and the increasing trend towards producing large structural components using the megacasting process pose considerable challenges, particularly in the mechanical joining of aluminium-silicon (AlSi) castings. These castings typically exhibit low ductility and are prone to cracking when mechanically joined. Based on the excellent castability of hypoeutectic AlSi alloys, these are applied in sand casting and die casting as well as in megacasting. With a silicon content between 7 wt% and 12 wt%, these AlSi-alloys have a plate-like silicon phase that initiates cracks during mechanical joining. To enhance the joinability of castings, the research hypothesis is that improved solidification conditions enable a significant modification in the microstructure and therefore, increase the mechanical properties. During the manufacture of the castings using the sand casting process, the solidification conditions within the structural elements are varied to modify the microstructure to obtain castings with graded microstructure. The castings are evaluated using mechanical, microstructural and joining testing methods and finally, a microstructure-joinability correlation is established. article_number: '01081' article_type: original author: - first_name: Moritz full_name: Neuser, Moritz id: '32340' last_name: Neuser - first_name: Malte Christian full_name: Schlichter, Malte Christian id: '61977' last_name: Schlichter - first_name: Kay-Peter full_name: Hoyer, Kay-Peter id: '48411' last_name: Hoyer - first_name: Mathias full_name: Bobbert, Mathias id: '7850' last_name: Bobbert - first_name: Gerson full_name: Meschut, Gerson id: '32056' last_name: Meschut orcid: 0000-0002-2763-1246 - first_name: Mirko full_name: Schaper, Mirko id: '43720' last_name: Schaper citation: ama: Neuser M, Schlichter MC, Hoyer K-P, Bobbert M, Meschut G, Schaper M. Mechanical joinability of microstructurally graded structural components manufactured from hypoeutectic aluminium casting alloys. 44th Conference of the International Deep Drawing Research Group (IDDRG 2025). 2025;408. doi:10.1051/matecconf/202540801081 apa: Neuser, M., Schlichter, M. C., Hoyer, K.-P., Bobbert, M., Meschut, G., & Schaper, M. (2025). Mechanical joinability of microstructurally graded structural components manufactured from hypoeutectic aluminium casting alloys. 44th Conference of the International Deep Drawing Research Group (IDDRG 2025), 408, Article 01081. https://doi.org/10.1051/matecconf/202540801081 bibtex: '@article{Neuser_Schlichter_Hoyer_Bobbert_Meschut_Schaper_2025, title={Mechanical joinability of microstructurally graded structural components manufactured from hypoeutectic aluminium casting alloys}, volume={408}, DOI={10.1051/matecconf/202540801081}, number={01081}, journal={44th Conference of the International Deep Drawing Research Group (IDDRG 2025)}, author={Neuser, Moritz and Schlichter, Malte Christian and Hoyer, Kay-Peter and Bobbert, Mathias and Meschut, Gerson and Schaper, Mirko}, year={2025} }' chicago: Neuser, Moritz, Malte Christian Schlichter, Kay-Peter Hoyer, Mathias Bobbert, Gerson Meschut, and Mirko Schaper. “Mechanical Joinability of Microstructurally Graded Structural Components Manufactured from Hypoeutectic Aluminium Casting Alloys.” 44th Conference of the International Deep Drawing Research Group (IDDRG 2025) 408 (2025). https://doi.org/10.1051/matecconf/202540801081. ieee: 'M. Neuser, M. C. Schlichter, K.-P. Hoyer, M. Bobbert, G. Meschut, and M. Schaper, “Mechanical joinability of microstructurally graded structural components manufactured from hypoeutectic aluminium casting alloys,” 44th Conference of the International Deep Drawing Research Group (IDDRG 2025), vol. 408, Art. no. 01081, 2025, doi: 10.1051/matecconf/202540801081.' mla: Neuser, Moritz, et al. “Mechanical Joinability of Microstructurally Graded Structural Components Manufactured from Hypoeutectic Aluminium Casting Alloys.” 44th Conference of the International Deep Drawing Research Group (IDDRG 2025), vol. 408, 01081, 2025, doi:10.1051/matecconf/202540801081. short: M. Neuser, M.C. Schlichter, K.-P. Hoyer, M. Bobbert, G. Meschut, M. Schaper, 44th Conference of the International Deep Drawing Research Group (IDDRG 2025) 408 (2025). conference: end_date: 2025-06-05 location: Lissabon (Portugal) name: 44th Conference of the International Deep Drawing Research Group (IDDRG 2025) start_date: 2025-06-02 date_created: 2025-05-12T15:21:06Z date_updated: 2026-02-24T13:41:58Z department: - _id: '43' - _id: '158' - _id: '157' - _id: '9' - _id: '321' doi: 10.1051/matecconf/202540801081 intvolume: ' 408' keyword: - Joining - Casting - Self-pierce riveting - Aluminium casting alloy language: - iso: eng main_file_link: - open_access: '1' url: "\thttps://doi.org/10.1051/matecconf/202540801081" oa: '1' project: - _id: '131' name: 'TRR 285 - A: TRR 285 - Project Area A' - _id: '136' name: 'TRR 285 – A02: TRR 285 - Subproject A02' - _id: '135' name: 'TRR 285 – A01: TRR 285 - Subproject A01' - _id: '130' name: 'TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten' publication: 44th Conference of the International Deep Drawing Research Group (IDDRG 2025) publication_status: published quality_controlled: '1' status: public title: Mechanical joinability of microstructurally graded structural components manufactured from hypoeutectic aluminium casting alloys type: journal_article user_id: '7850' volume: 408 year: '2025' ... --- _id: '61149' abstract: - lang: eng text: The use of continuous fiber-reinforced thermoplastics (FRTP) in automotive industry increases due to their excellent material properties and possibility of rapid processing. The scale spanning heterogeneity of their material structure and its influence on the material behavior, however, presents significant challenges for most joining technologies, such as self-piercing riveting (SPR). During mechanical joining, the material structure is significantly altered within and around the joining zone, heavily influencing the material behavior. A comprehensive understanding of the underlying phenomena of material alteration during the SPR process is essential as basis for validating numerical simulations. This study examines the material structure at ten stages of a step-setting test of SPR with two FRTP sheets with glass-fiber reinforcement. Utilizing X-ray computed tomography (CT), the damage phenomena within different areas of the setting test are analyzed three-dimensionally and key parameters are quantified. Dominating phenomena during the penetration of the rivet into the laminate are fiber failure (FF), interfiber failure (IFF) and fiber bending, while delamination, fiber kinking and roving splitting are also observed. At the final stages, the bottom layers of the second sheet collapse and form a bulge into the cavity of the die. author: - first_name: Alrik full_name: Dargel, Alrik id: '114764' last_name: Dargel - first_name: Benjamin full_name: Gröger, Benjamin last_name: Gröger - first_name: Malte Christian full_name: Schlichter, Malte Christian id: '61977' last_name: Schlichter - first_name: Johannes full_name: Gerritzen, Johannes id: '105344' last_name: Gerritzen orcid: 0000-0002-0169-8602 - first_name: Daniel full_name: Köhler, Daniel id: '83408' last_name: Köhler - first_name: Gerson full_name: Meschut, Gerson id: '32056' last_name: Meschut orcid: 0000-0002-2763-1246 - first_name: Maik full_name: Gude, Maik last_name: Gude - first_name: Robert full_name: Kupfer, Robert last_name: Kupfer citation: ama: 'Dargel A, Gröger B, Schlichter MC, et al. LOCAL DEFORMATION AND FAILURE OF COMPOSITES DURING SELF-PIERCING RIVETING: A CT BASED MICROSTRUCTURE INVESTIGATION. In: Gomes JFS, Meguid SA, eds. Proceedings of the 8th International Conference on Integrity-Reliability-Failure (IRF2025). FEUP; 2025. doi:10.24840/978-972-752-323-8' apa: 'Dargel, A., Gröger, B., Schlichter, M. C., Gerritzen, J., Köhler, D., Meschut, G., Gude, M., & Kupfer, R. (2025). LOCAL DEFORMATION AND FAILURE OF COMPOSITES DURING SELF-PIERCING RIVETING: A CT BASED MICROSTRUCTURE INVESTIGATION. In J. F. S. Gomes & S. A. Meguid (Eds.), Proceedings of the 8th International Conference on Integrity-Reliability-Failure (IRF2025). FEUP. https://doi.org/10.24840/978-972-752-323-8' bibtex: '@inproceedings{Dargel_Gröger_Schlichter_Gerritzen_Köhler_Meschut_Gude_Kupfer_2025, place={Porto}, title={LOCAL DEFORMATION AND FAILURE OF COMPOSITES DURING SELF-PIERCING RIVETING: A CT BASED MICROSTRUCTURE INVESTIGATION}, DOI={10.24840/978-972-752-323-8}, booktitle={Proceedings of the 8th International Conference on Integrity-Reliability-Failure (IRF2025)}, publisher={FEUP}, author={Dargel, Alrik and Gröger, Benjamin and Schlichter, Malte Christian and Gerritzen, Johannes and Köhler, Daniel and Meschut, Gerson and Gude, Maik and Kupfer, Robert}, editor={Gomes, J.F. Silva and Meguid, Shaker A.}, year={2025} }' chicago: 'Dargel, Alrik, Benjamin Gröger, Malte Christian Schlichter, Johannes Gerritzen, Daniel Köhler, Gerson Meschut, Maik Gude, and Robert Kupfer. “LOCAL DEFORMATION AND FAILURE OF COMPOSITES DURING SELF-PIERCING RIVETING: A CT BASED MICROSTRUCTURE INVESTIGATION.” In Proceedings of the 8th International Conference on Integrity-Reliability-Failure (IRF2025), edited by J.F. Silva Gomes and Shaker A. Meguid. Porto: FEUP, 2025. https://doi.org/10.24840/978-972-752-323-8.' ieee: 'A. Dargel et al., “LOCAL DEFORMATION AND FAILURE OF COMPOSITES DURING SELF-PIERCING RIVETING: A CT BASED MICROSTRUCTURE INVESTIGATION,” in Proceedings of the 8th International Conference on Integrity-Reliability-Failure (IRF2025), Porto, 2025, doi: 10.24840/978-972-752-323-8.' mla: 'Dargel, Alrik, et al. “LOCAL DEFORMATION AND FAILURE OF COMPOSITES DURING SELF-PIERCING RIVETING: A CT BASED MICROSTRUCTURE INVESTIGATION.” Proceedings of the 8th International Conference on Integrity-Reliability-Failure (IRF2025), edited by J.F. Silva Gomes and Shaker A. Meguid, FEUP, 2025, doi:10.24840/978-972-752-323-8.' short: 'A. Dargel, B. Gröger, M.C. Schlichter, J. Gerritzen, D. Köhler, G. Meschut, M. Gude, R. Kupfer, in: J.F.S. Gomes, S.A. Meguid (Eds.), Proceedings of the 8th International Conference on Integrity-Reliability-Failure (IRF2025), FEUP, Porto, 2025.' conference: end_date: 2025-07-18 location: Porto name: 8th International Conference on Integrity-Reliability-Failure (IRF2025) start_date: 2025-07-15 date_created: 2025-09-08T11:52:45Z date_updated: 2026-02-27T06:45:17Z doi: 10.24840/978-972-752-323-8 editor: - first_name: J.F. Silva full_name: Gomes, J.F. Silva last_name: Gomes - first_name: Shaker A. full_name: Meguid, Shaker A. last_name: Meguid keyword: - self-piercing riveting - computed tomography - thermoplastic composites - process-structure-interaction language: - iso: eng main_file_link: - open_access: '1' url: https://www.researchgate.net/publication/395593556_LOCAL_DEFORMATION_AND_FAILURE_OF_COMPOSITES_DURING_SELF-PIERCING_RIVETING_A_CT_BASED_MICROSTRUCTURE_INVESTIGATION oa: '1' place: Porto project: - _id: '133' name: TRR 285 - Project Area C - _id: '148' name: TRR 285 - Subproject C04 - _id: '130' name: 'TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten' - _id: '131' name: TRR 285 - Project Area A - _id: '137' name: TRR 285 - Subproject A03 - _id: '135' name: TRR 285 - Subproject A01 publication: Proceedings of the 8th International Conference on Integrity-Reliability-Failure (IRF2025) publication_identifier: isbn: - '9789727523238' publication_status: published publisher: FEUP status: public title: 'LOCAL DEFORMATION AND FAILURE OF COMPOSITES DURING SELF-PIERCING RIVETING: A CT BASED MICROSTRUCTURE INVESTIGATION' type: conference user_id: '105344' year: '2025' ... --- _id: '58807' abstract: - lang: eng text: "One of the most important strategies for reducing CO2 emissions in the mobility sector is lightweight construction. In particular, the car body offers several opportunities for weight reduction. Multi-material designs are increasingly being applied to select the most suitable material for the respective load and ultimately achieve synergy effects. For example, aluminium castings are used at the nodes of a spaceframe body. Subsequently, these are joined with profiles to form the bodyshell. To join different materials mechanical joining techniques, such as semi-tubular self-piercing riveting, are deployed. According to the current state of the art, cracks occur in the aluminium castings during the mechanical joining process as a result of the high degree of deformation. Although the aluminium casting alloys of the AlSi-system exhibit low ductility, these alloys reveal excellent castability. In particular, the ability to cast thin structural parts is enabled by the low liquidus point of the near eutectic aluminium casting alloys.\r\nThis study addresses the mechanical joining properties of the near eutectic aluminium casting alloy AlSi12, depending on different microstructures. These are achieved by annealing processes and modifying agents. Through an adapted heat treatment, the previously lamellar morphology can be transformed into a globular morphology, which leads to increased ductility and prevents the formation of cracks during the self-piercing riveting (SPR). The joinability is investigated using different die geometries, whereas the joint formation is analysed regarding crack initiation. To evaluate the increased ductility, microstructural and mechanical tests are performed and finally, a microstructure-joinability correlation is established." article_type: original author: - first_name: Moritz full_name: Neuser, Moritz id: '32340' last_name: Neuser - first_name: Pia Katharina full_name: Holtkamp, Pia Katharina id: '44935' last_name: Holtkamp - first_name: Kay-Peter full_name: Hoyer, Kay-Peter id: '48411' last_name: Hoyer - first_name: Fabian full_name: Kappe, Fabian id: '66459' last_name: Kappe - first_name: Safak full_name: Yildiz, Safak last_name: Yildiz - first_name: Mathias full_name: Bobbert, Mathias id: '7850' last_name: Bobbert - first_name: Gerson full_name: Meschut, Gerson id: '32056' last_name: Meschut orcid: 0000-0002-2763-1246 - first_name: Mirko full_name: Schaper, Mirko id: '43720' last_name: Schaper citation: ama: 'Neuser M, Holtkamp PK, Hoyer K-P, et al. Mechanical properties and joinability of the near-eutectic aluminium casting alloy AlSi12. The Journal of Materials: Design and Applications, Part L. Published online 2025. doi:10.1177/14644207251319922' apa: 'Neuser, M., Holtkamp, P. K., Hoyer, K.-P., Kappe, F., Yildiz, S., Bobbert, M., Meschut, G., & Schaper, M. (2025). Mechanical properties and joinability of the near-eutectic aluminium casting alloy AlSi12. The Journal of Materials: Design and Applications, Part L. 5th International Conference on Materials Design and Applications 2024, Porto, Portugal. https://doi.org/10.1177/14644207251319922' bibtex: '@article{Neuser_Holtkamp_Hoyer_Kappe_Yildiz_Bobbert_Meschut_Schaper_2025, title={Mechanical properties and joinability of the near-eutectic aluminium casting alloy AlSi12}, DOI={10.1177/14644207251319922}, journal={The Journal of Materials: Design and Applications, Part L}, publisher={Sage Publications}, author={Neuser, Moritz and Holtkamp, Pia Katharina and Hoyer, Kay-Peter and Kappe, Fabian and Yildiz, Safak and Bobbert, Mathias and Meschut, Gerson and Schaper, Mirko}, year={2025} }' chicago: 'Neuser, Moritz, Pia Katharina Holtkamp, Kay-Peter Hoyer, Fabian Kappe, Safak Yildiz, Mathias Bobbert, Gerson Meschut, and Mirko Schaper. “Mechanical Properties and Joinability of the Near-Eutectic Aluminium Casting Alloy AlSi12.” The Journal of Materials: Design and Applications, Part L, 2025. https://doi.org/10.1177/14644207251319922.' ieee: 'M. Neuser et al., “Mechanical properties and joinability of the near-eutectic aluminium casting alloy AlSi12,” The Journal of Materials: Design and Applications, Part L, 2025, doi: 10.1177/14644207251319922.' mla: 'Neuser, Moritz, et al. “Mechanical Properties and Joinability of the Near-Eutectic Aluminium Casting Alloy AlSi12.” The Journal of Materials: Design and Applications, Part L, Sage Publications, 2025, doi:10.1177/14644207251319922.' short: 'M. Neuser, P.K. Holtkamp, K.-P. Hoyer, F. Kappe, S. Yildiz, M. Bobbert, G. Meschut, M. Schaper, The Journal of Materials: Design and Applications, Part L (2025).' conference: end_date: 2024-07-05 location: Porto, Portugal name: 5th International Conference on Materials Design and Applications 2024 start_date: 2024-07-04 date_created: 2025-02-24T10:25:31Z date_updated: 2025-02-24T12:25:04Z department: - _id: '43' - _id: '158' - _id: '157' - _id: '9' - _id: '321' doi: 10.1177/14644207251319922 has_accepted_license: '1' keyword: - aluminium - casting - microstructure - joinability - self-piercing riveting language: - iso: eng project: - _id: '131' name: 'TRR 285 - A: TRR 285 - Project Area A' - _id: '136' name: 'TRR 285 – A02: TRR 285 - Subproject A02' - _id: '133' name: 'TRR 285 - C: TRR 285 - Project Area C' - _id: '146' name: 'TRR 285 – C02: TRR 285 - Subproject C02' publication: 'The Journal of Materials: Design and Applications, Part L' publication_status: published publisher: Sage Publications quality_controlled: '1' status: public title: Mechanical properties and joinability of the near-eutectic aluminium casting alloy AlSi12 type: journal_article user_id: '32340' year: '2025' ... --- _id: '60290' abstract: - lang: eng text: The constantly increasing demand for climate protection and resource conservation requires innovative and versatile joining processes that improve adaptability to the joining task and robustness to enable flexible manufacturing on a production line. Therefore, the versatile SPR (V-SPR) and tumbling SPR (T-SPR) were developed. Using the example of a mixed material combination HCT590X+Z (t0 = 1.0 mm) / EN AW-6014 T4 (t0 = 2.0 mm), these processes were examined and compared with regard to the binding mechanisms form closure and force closure using micrographs, non-destructive resistance measurements and destructive torsion tests. For this purpose, a new sample geometry was defined, and the methods were adapted to the SPR process variants. author: - first_name: Stephan full_name: Lüder, Stephan last_name: Lüder - first_name: Pia Katharina full_name: Holtkamp, Pia Katharina id: '44935' last_name: Holtkamp - first_name: Simon full_name: Wituschek, Simon last_name: Wituschek - first_name: Mathias full_name: Bobbert, Mathias id: '7850' last_name: Bobbert - first_name: Gerson full_name: Meschut, Gerson id: '32056' last_name: Meschut orcid: 0000-0002-2763-1246 - first_name: Michael full_name: Lechner, Michael last_name: Lechner - first_name: Hans Christian full_name: Schmale, Hans Christian last_name: Schmale citation: ama: 'Lüder S, Holtkamp PK, Wituschek S, et al. Analysis of the binding mechanisms depending on versatile process variants of self-piercing riveting. In: Meschut G, Bobbert M, Duflou J, et al., eds. Materials Research Proceedings. Vol 52. Sheet Metal 2025. Materials Research Forum LLC; 2025:101-108. doi:10.21741/9781644903551-13' apa: Lüder, S., Holtkamp, P. K., Wituschek, S., Bobbert, M., Meschut, G., Lechner, M., & Schmale, H. C. (2025). Analysis of the binding mechanisms depending on versatile process variants of self-piercing riveting. In G. Meschut, M. Bobbert, J. Duflou, L. Fratini, H. Hagenah, P. A. F. Martins, M. Merklein, & F. Micari (Eds.), Materials Research Proceedings (Vol. 52, pp. 101–108). Materials Research Forum LLC. https://doi.org/10.21741/9781644903551-13 bibtex: '@inproceedings{Lüder_Holtkamp_Wituschek_Bobbert_Meschut_Lechner_Schmale_2025, place={Millersville}, series={Sheet Metal 2025}, title={Analysis of the binding mechanisms depending on versatile process variants of self-piercing riveting}, volume={52}, DOI={10.21741/9781644903551-13}, booktitle={Materials Research Proceedings}, publisher={Materials Research Forum LLC}, author={Lüder, Stephan and Holtkamp, Pia Katharina and Wituschek, Simon and Bobbert, Mathias and Meschut, Gerson and Lechner, Michael and Schmale, Hans Christian}, editor={Meschut, Gerson and Bobbert, Mathias and Duflou, Joost and Fratini, Livan and Hagenah, Hinnerk and Martins, Paulo A. F. and Merklein, Marion and Micari, Fabrizio}, year={2025}, pages={101–108}, collection={Sheet Metal 2025} }' chicago: 'Lüder, Stephan, Pia Katharina Holtkamp, Simon Wituschek, Mathias Bobbert, Gerson Meschut, Michael Lechner, and Hans Christian Schmale. “Analysis of the Binding Mechanisms Depending on Versatile Process Variants of Self-Piercing Riveting.” In Materials Research Proceedings, edited by Gerson Meschut, Mathias Bobbert, Joost Duflou, Livan Fratini, Hinnerk Hagenah, Paulo A. F. Martins, Marion Merklein, and Fabrizio Micari, 52:101–8. Sheet Metal 2025. Millersville: Materials Research Forum LLC, 2025. https://doi.org/10.21741/9781644903551-13.' ieee: 'S. Lüder et al., “Analysis of the binding mechanisms depending on versatile process variants of self-piercing riveting,” in Materials Research Proceedings, Paderborn, 2025, vol. 52, pp. 101–108, doi: 10.21741/9781644903551-13.' mla: Lüder, Stephan, et al. “Analysis of the Binding Mechanisms Depending on Versatile Process Variants of Self-Piercing Riveting.” Materials Research Proceedings, edited by Gerson Meschut et al., vol. 52, Materials Research Forum LLC, 2025, pp. 101–08, doi:10.21741/9781644903551-13. short: 'S. Lüder, P.K. Holtkamp, S. Wituschek, M. Bobbert, G. Meschut, M. Lechner, H.C. Schmale, in: G. Meschut, M. Bobbert, J. Duflou, L. Fratini, H. Hagenah, P.A.F. Martins, M. Merklein, F. Micari (Eds.), Materials Research Proceedings, Materials Research Forum LLC, Millersville, 2025, pp. 101–108.' conference: end_date: 2025-04-03 location: Paderborn name: 21st International Conference on Sheet Metal start_date: 2025-04-01 date_created: 2025-06-20T10:13:22Z date_updated: 2025-06-27T08:19:26Z department: - _id: '630' - _id: '43' - _id: '157' doi: 10.21741/9781644903551-13 editor: - first_name: Gerson full_name: Meschut, Gerson last_name: Meschut - first_name: Mathias full_name: Bobbert, Mathias last_name: Bobbert - first_name: Joost full_name: Duflou, Joost last_name: Duflou - first_name: Livan full_name: Fratini, Livan last_name: Fratini - first_name: Hinnerk full_name: Hagenah, Hinnerk last_name: Hagenah - first_name: Paulo A. F. full_name: Martins, Paulo A. F. last_name: Martins - first_name: Marion full_name: Merklein, Marion last_name: Merklein - first_name: Fabrizio full_name: Micari, Fabrizio last_name: Micari extern: '1' intvolume: ' 52' keyword: - Joining - Self-Piercing Riveting - Sheet Metal language: - iso: eng page: 101 - 108 place: Millersville project: - _id: '131' name: 'TRR 285 - A: TRR 285 - Project Area A' - _id: '138' name: 'TRR 285 – A04: TRR 285 - Subproject A04' - _id: '133' name: 'TRR 285 - C: TRR 285 - Project Area C' - _id: '146' name: 'TRR 285 – C02: TRR 285 - Subproject C02' publication: Materials Research Proceedings publication_identifier: issn: - 2474-395X publication_status: published publisher: Materials Research Forum LLC quality_controlled: '1' series_title: Sheet Metal 2025 status: public title: Analysis of the binding mechanisms depending on versatile process variants of self-piercing riveting type: conference user_id: '44935' volume: 52 year: '2025' ... --- _id: '61309' abstract: - lang: eng text: "Service ecosystems reshape service innovation by enabling value co-creation among diverse actors. However, small and medium-sized enterprises and public organizations face significant challenges navigating and leveraging these ecosystems due to resource constraints, knowledge gaps, and partnership difficulties. While digital innovation hubs have been introduced as potential intermediaries to foster innovation, existing models primarily focus on individual solutions and networking rather than orchestrating service innovation. This study investigates the design of a digital service innovation hub as an orchestrating entity that facilitates service innovation within ecosystems. Under the design science research paradigm, we analyze the challenges faced by small and medium-sized enterprises and public organizations and derive design requirements for these hubs. Based on 17 expert interviews and focus group validations, we define the problem\r\nspace and provide a requirements catalog for designing digital service innovation hubs as a step towards providing holistic support for service innovation initiatives." author: - first_name: Jannika Marie full_name: Schäfer, Jannika Marie id: '74374' last_name: Schäfer - first_name: Jonas full_name: Liebschner, Jonas last_name: Liebschner - first_name: Polina full_name: Rajko, Polina last_name: Rajko - first_name: Henrik full_name: Cohnen, Henrik last_name: Cohnen - first_name: Nina full_name: Lugmair, Nina last_name: Lugmair - first_name: Daniel full_name: Heinz, Daniel last_name: Heinz citation: ama: 'Schäfer JM, Liebschner J, Rajko P, Cohnen H, Lugmair N, Heinz D. Designing Digital Service Innovation Hubs: An Ecosystem Perspective on the Challenges and Requirements of SMEs and the Public Sector. In: Proceedings of the 20th International Conference on Wirtschaftsinformatik (WI 2025). Association for Information Systems (AIS); 2025.' apa: 'Schäfer, J. M., Liebschner, J., Rajko, P., Cohnen, H., Lugmair, N., & Heinz, D. (2025). Designing Digital Service Innovation Hubs: An Ecosystem Perspective on the Challenges and Requirements of SMEs and the Public Sector. Proceedings of the 20th International Conference on Wirtschaftsinformatik (WI 2025). 20th International Conference on Wirtschaftsinformatik (WI 2025), Münster, Germany.' bibtex: '@inproceedings{Schäfer_Liebschner_Rajko_Cohnen_Lugmair_Heinz_2025, place={Münster, Germany}, title={Designing Digital Service Innovation Hubs: An Ecosystem Perspective on the Challenges and Requirements of SMEs and the Public Sector}, booktitle={Proceedings of the 20th International Conference on Wirtschaftsinformatik (WI 2025)}, publisher={Association for Information Systems (AIS)}, author={Schäfer, Jannika Marie and Liebschner, Jonas and Rajko, Polina and Cohnen, Henrik and Lugmair, Nina and Heinz, Daniel}, year={2025} }' chicago: 'Schäfer, Jannika Marie, Jonas Liebschner, Polina Rajko, Henrik Cohnen, Nina Lugmair, and Daniel Heinz. “Designing Digital Service Innovation Hubs: An Ecosystem Perspective on the Challenges and Requirements of SMEs and the Public Sector.” In Proceedings of the 20th International Conference on Wirtschaftsinformatik (WI 2025). Münster, Germany: Association for Information Systems (AIS), 2025.' ieee: 'J. M. Schäfer, J. Liebschner, P. Rajko, H. Cohnen, N. Lugmair, and D. Heinz, “Designing Digital Service Innovation Hubs: An Ecosystem Perspective on the Challenges and Requirements of SMEs and the Public Sector,” presented at the 20th International Conference on Wirtschaftsinformatik (WI 2025), Münster, Germany, 2025.' mla: 'Schäfer, Jannika Marie, et al. “Designing Digital Service Innovation Hubs: An Ecosystem Perspective on the Challenges and Requirements of SMEs and the Public Sector.” Proceedings of the 20th International Conference on Wirtschaftsinformatik (WI 2025), Association for Information Systems (AIS), 2025.' short: 'J.M. Schäfer, J. Liebschner, P. Rajko, H. Cohnen, N. Lugmair, D. Heinz, in: Proceedings of the 20th International Conference on Wirtschaftsinformatik (WI 2025), Association for Information Systems (AIS), Münster, Germany, 2025.' conference: end_date: 17.09.2025 location: Münster, Germany name: 20th International Conference on Wirtschaftsinformatik (WI 2025) start_date: 14.09.2025 date_created: 2025-09-16T13:44:53Z date_updated: 2025-09-16T13:46:05Z department: - _id: '195' jel: - M15 keyword: - service innovation - ecosystem - innovation hubs - SMEs - public sector language: - iso: eng place: Münster, Germany project: - _id: '1250' name: 'SHAPE : Gestaltung von Dienstleistungsentwicklungsprozessen und lnnovationspartnerschaften mit Unternehmen' publication: Proceedings of the 20th International Conference on Wirtschaftsinformatik (WI 2025) publication_status: published publisher: Association for Information Systems (AIS) status: public title: 'Designing Digital Service Innovation Hubs: An Ecosystem Perspective on the Challenges and Requirements of SMEs and the Public Sector' type: conference user_id: '74374' year: '2025' ... --- _id: '59335' abstract: - lang: eng 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. article_number: '27' article_type: original author: - first_name: Tilo full_name: Böhmann, Tilo last_name: Böhmann - first_name: Angela full_name: Roth, Angela last_name: Roth - first_name: Gerhard full_name: Satzger, Gerhard last_name: Satzger - first_name: Carina full_name: Benz, Carina last_name: Benz - first_name: Daniel full_name: Beverungen, Daniel last_name: Beverungen - first_name: Andreas full_name: Boes, Andreas last_name: Boes - first_name: Christoph full_name: Breidbach, Christoph last_name: Breidbach - first_name: Martin full_name: Gersch, Martin last_name: Gersch - first_name: Gerhard full_name: Gudergan, Gerhard last_name: Gudergan - first_name: Jens full_name: Hogreve, Jens last_name: Hogreve - first_name: Christian full_name: Kurtz, Christian last_name: Kurtz - first_name: Barbara full_name: Langes, Barbara last_name: Langes - first_name: Jan Marco full_name: Leimeister, Jan Marco last_name: Leimeister - first_name: Tom full_name: Lewandowski, Tom last_name: Lewandowski - first_name: Thomas full_name: Meiren, Thomas last_name: Meiren - first_name: Rainer full_name: Nägele, Rainer last_name: Nägele - first_name: Stefanie full_name: Paluch, Stefanie last_name: Paluch - first_name: Christoph full_name: Peters, Christoph last_name: Peters - first_name: Jens full_name: Poeppelbuss, Jens last_name: Poeppelbuss - first_name: Susanne full_name: Robra-Bissantz, Susanne last_name: Robra-Bissantz - first_name: Carsten full_name: Schultz, Carsten last_name: Schultz - first_name: Jan H. full_name: Schumann, Jan H. last_name: Schumann - first_name: Jochen full_name: Wirtz, Jochen last_name: Wirtz - first_name: Nancy V. full_name: Wünderlich, Nancy V. last_name: Wünderlich citation: ama: 'Böhmann T, Roth A, Satzger G, et al. Continuous value shaping: A boundary concept for innovating service innovation approaches. Electronic Markets. 2025;35(1). doi:10.1007/s12525-025-00771-1' 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. Electronic Markets, 35(1), Article 27. https://doi.org/10.1007/s12525-025-00771-1' 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={10.1007/s12525-025-00771-1}, 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} }' 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.” Electronic Markets 35, no. 1 (2025). https://doi.org/10.1007/s12525-025-00771-1.' ieee: 'T. Böhmann et al., “Continuous value shaping: A boundary concept for innovating service innovation approaches,” Electronic Markets, vol. 35, no. 1, Art. no. 27, 2025, doi: 10.1007/s12525-025-00771-1.' mla: 'Böhmann, Tilo, et al. “Continuous Value Shaping: A Boundary Concept for Innovating Service Innovation Approaches.” Electronic Markets, vol. 35, no. 1, 27, Springer Science and Business Media LLC, 2025, doi:10.1007/s12525-025-00771-1.' 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). date_created: 2025-04-04T06:10:26Z date_updated: 2025-11-10T10:19:25Z ddc: - '380' department: - _id: '195' doi: 10.1007/s12525-025-00771-1 external_id: unknown: - https://link.springer.com/article/10.1007/s12525-025-00771-1 file: - access_level: closed content_type: application/pdf creator: dabe date_created: 2025-04-04T06:19:38Z date_updated: 2025-04-04T06:19:38Z file_id: '59336' file_name: Continuous Value Shaping - EM.pdf file_size: 920032 relation: main_file success: 1 file_date_updated: 2025-04-04T06:19:38Z has_accepted_license: '1' intvolume: ' 35' issue: '1' jel: - M10 keyword: - Continuous value shaping (CVS) - Service research - Service innovation - Digitalization - Sustainability - Interdisciplinary research language: - iso: eng project: - _id: '1250' name: 'SHAPE : Gestaltung von Dienstleistungsentwicklungsprozessen und lnnovationspartnerschaften mit Unternehmen' publication: Electronic Markets publication_identifier: issn: - 1019-6781 - 1422-8890 publication_status: published publisher: Springer Science and Business Media LLC quality_controlled: '1' status: public title: 'Continuous value shaping: A boundary concept for innovating service innovation approaches' type: journal_article user_id: '59677' volume: 35 year: '2025' ... --- _id: '61410' abstract: - lang: eng text: "Purpose: The purpose of this study is to identify, analyze, and explain the implications that could\r\narise for service settings if AI systems develop, or are perceived to develop, consciousness – the\r\nability to acknowledge their own existence and the capacity for positive or negative experiences.\r\n\r\nDesign/methodology/approach: This study proposes and explores four hypothetical scenarios in\r\nwhich conscious AI in service could manifest. We contextualize our resulting typology in the\r\nhealth service context and integrate extant literature on technology-enabled service, AI\r\nconsciousness, and AI ethics into the narrative.\r\n\r\nFindings: This study provides a unique theoretical contribution to service research in the form of\r\na Type IV theory. It enables future service researchers to apprehend, explain, and predict how\r\nfunctionally conscious AI in service might unfold.\r\n\r\nOriginality: An increasingly prolific public discourse acknowledges that conscious AI systems\r\nmay emerge. Against this backdrop, this study aims to systematically explore a question that is\r\nperhaps the most critical and timely, but also inherently speculative, in relation to AI in service\r\nresearch by introducing much-needed theory and terminology.\r\n\r\nPractical implications: The ethical use of conscious AI in service could emerge as a distinct\r\ncompetitive advantage in the future. Achieving this outcome involves speculative yet actionable\r\nrecommendations that include training, guiding, and controlling how humans engage with such\r\nsystems, developing appropriate wellbeing protocols for functionally conscious AI systems, and\r\nestablishing AI rights and governance frameworks." article_type: original author: - first_name: Christoph full_name: Breidbach, Christoph last_name: Breidbach - first_name: Casper Ferm full_name: Lars-Erik, Casper Ferm last_name: Lars-Erik - first_name: Paul full_name: Maglio, Paul last_name: Maglio - first_name: Daniel full_name: Beverungen, Daniel id: '59677' last_name: Beverungen - first_name: Jochen full_name: Wirtz, Jochen last_name: Wirtz - first_name: Alex full_name: Twigg, Alex last_name: Twigg citation: ama: Breidbach C, Lars-Erik CF, Maglio P, Beverungen D, Wirtz J, Twigg A. Conscious Artificial Intelligence in Service. Journal of Service Management. apa: Breidbach, C., Lars-Erik, C. F., Maglio, P., Beverungen, D., Wirtz, J., & Twigg, A. (n.d.). Conscious Artificial Intelligence in Service. Journal of Service Management. bibtex: '@article{Breidbach_Lars-Erik_Maglio_Beverungen_Wirtz_Twigg, title={Conscious Artificial Intelligence in Service}, journal={Journal of Service Management}, publisher={Emerald}, author={Breidbach, Christoph and Lars-Erik, Casper Ferm and Maglio, Paul and Beverungen, Daniel and Wirtz, Jochen and Twigg, Alex} }' chicago: Breidbach, Christoph, Casper Ferm Lars-Erik, Paul Maglio, Daniel Beverungen, Jochen Wirtz, and Alex Twigg. “Conscious Artificial Intelligence in Service.” Journal of Service Management, n.d. ieee: C. Breidbach, C. F. Lars-Erik, P. Maglio, D. Beverungen, J. Wirtz, and A. Twigg, “Conscious Artificial Intelligence in Service,” Journal of Service Management. mla: Breidbach, Christoph, et al. “Conscious Artificial Intelligence in Service.” Journal of Service Management, Emerald. short: C. Breidbach, C.F. Lars-Erik, P. Maglio, D. Beverungen, J. Wirtz, A. Twigg, Journal of Service Management (n.d.). date_created: 2025-09-23T11:47:47Z date_updated: 2025-11-10T10:22:59Z ddc: - '380' department: - _id: '195' file: - access_level: closed content_type: application/pdf creator: dabe date_created: 2025-11-10T10:20:48Z date_updated: 2025-11-10T10:20:48Z file_id: '62150' file_name: Breidbach et al, 2025_Conscious AI in Service_w link.pdf file_size: 743479 relation: main_file success: 1 file_date_updated: 2025-11-10T10:20:48Z has_accepted_license: '1' keyword: - AI - AI consciousness - AI ethics - service systems language: - iso: eng publication: Journal of Service Management publication_status: inpress publisher: Emerald quality_controlled: '1' status: public title: Conscious Artificial Intelligence in Service type: journal_article user_id: '59677' year: '2025' ... --- _id: '62752' abstract: - lang: eng text: In higher education, assessment/examination procedures should be designed to form a coherent learning process that is aligned with the intended learning objectives and planned learning activities. However, in academic teacher education programmes often use assessment formats that are not well aligned with the demands of teachers' actual professional practice. Performance-based assessments can offer an alternative, for example in the form of role-play-based simulations with trained actors representing typical professional activities in environments of reduced complexity. We have developed such a performance-based assessment format for physics teacher education, analogous to the Objective Structured Teaching Examinations (OSTE) approach used in medical education. The OSTE prototype consists of seven short simulative assessments, reflecting four areas of competence (Instruction, Assessment, Pedagogy and Innovation) that form a 90-minute examination course. In order to investigate prospective physics teachers' perceptions of such an assessment format in terms of its suitability as a summative examination procedure, we piloted the OSTE prototype with N = 34 physics student teachers from three German universities using short questionnaires. The results show that participants perceived the OSTE prototype as authentic and relevant, but they also highlight the need for adequate new learning opportunities to prepare for such simulative examinations to be integrated into teacher education programmes. author: - first_name: Christoph full_name: Vogelsang, Christoph id: '4245' last_name: Vogelsang orcid: 0000-0002-5804-1855 - first_name: Lea full_name: Grotegut, Lea id: '34280' last_name: Grotegut - first_name: Philipp full_name: Wotschel, Philipp id: '89529' last_name: Wotschel - first_name: Thomas full_name: Janzen, Thomas id: '89329' last_name: Janzen orcid: 0009-0003-1941-166X citation: ama: 'Vogelsang C, Grotegut L, Wotschel P, Janzen T. Prospective Physics Teachers’  Perceptions of an Objective Structured  Teaching Examination (OSTE). In: ; 2025.' apa: Vogelsang, C., Grotegut, L., Wotschel, P., & Janzen, T. (2025). Prospective Physics Teachers’  Perceptions of an Objective Structured  Teaching Examination (OSTE). ESERA 2025 Conference, Copenhagen. bibtex: '@inproceedings{Vogelsang_Grotegut_Wotschel_Janzen_2025, place={Copenhagen}, title={Prospective Physics Teachers’  Perceptions of an Objective Structured  Teaching Examination (OSTE)}, author={Vogelsang, Christoph and Grotegut, Lea and Wotschel, Philipp and Janzen, Thomas}, year={2025} }' chicago: Vogelsang, Christoph, Lea Grotegut, Philipp Wotschel, and Thomas Janzen. “Prospective Physics Teachers’  Perceptions of an Objective Structured  Teaching Examination (OSTE).” Copenhagen, 2025. ieee: C. Vogelsang, L. Grotegut, P. Wotschel, and T. Janzen, “Prospective Physics Teachers’  Perceptions of an Objective Structured  Teaching Examination (OSTE),” presented at the ESERA 2025 Conference, Copenhagen, 2025. mla: Vogelsang, Christoph, et al. Prospective Physics Teachers’  Perceptions of an Objective Structured  Teaching Examination (OSTE). 2025. short: 'C. Vogelsang, L. Grotegut, P. Wotschel, T. Janzen, in: Copenhagen, 2025.' conference: end_date: 2025-08-30 location: Copenhagen name: ESERA 2025 Conference start_date: 2025-08-25 date_created: 2025-12-03T08:43:26Z date_updated: 2025-12-03T08:56:29Z department: - _id: '33' keyword: - teacher education - physics - assessment - pre-service teachers language: - iso: eng place: Copenhagen quality_controlled: '1' status: public title: Prospective Physics Teachers' Perceptions of an Objective Structured Teaching Examination (OSTE) type: conference user_id: '4245' year: '2025' ... --- _id: '58874' author: - first_name: Manuel full_name: Fahrbach, Manuel last_name: Fahrbach - first_name: Tobias full_name: Jenert, Tobias id: '71994' last_name: Jenert orcid: ' https://orcid.org/0000-0001-9262-5646' - first_name: Alexander full_name: Fust, Alexander last_name: Fust - first_name: Noah full_name: Bellwald, Noah last_name: Bellwald - first_name: Christoph full_name: Winkler, Christoph last_name: Winkler citation: ama: 'Fahrbach M, Jenert T, Fust A, Bellwald N, Winkler C. Fostering self-regulated entrepreneurial learning in entrepreneurship education. In: Annals of Entrepreneurship Education and Pedagogy - 2025. Edward Elgar Publishing; 2025:249–265. doi:10.4337/9781035325795.00021' apa: Fahrbach, M., Jenert, T., Fust, A., Bellwald, N., & Winkler, C. (2025). Fostering self-regulated entrepreneurial learning in entrepreneurship education. In Annals of Entrepreneurship Education and Pedagogy - 2025 (pp. 249–265). Edward Elgar Publishing. https://doi.org/10.4337/9781035325795.00021 bibtex: '@inbook{Fahrbach_Jenert_Fust_Bellwald_Winkler_2025, title={Fostering self-regulated entrepreneurial learning in entrepreneurship education}, DOI={10.4337/9781035325795.00021}, booktitle={Annals of Entrepreneurship Education and Pedagogy - 2025}, publisher={Edward Elgar Publishing}, author={Fahrbach, Manuel and Jenert, Tobias and Fust, Alexander and Bellwald, Noah and Winkler, Christoph}, year={2025}, pages={249–265} }' chicago: Fahrbach, Manuel, Tobias Jenert, Alexander Fust, Noah Bellwald, and Christoph Winkler. “Fostering Self-Regulated Entrepreneurial Learning in Entrepreneurship Education.” In Annals of Entrepreneurship Education and Pedagogy - 2025, 249–265. Edward Elgar Publishing, 2025. https://doi.org/10.4337/9781035325795.00021. ieee: M. Fahrbach, T. Jenert, A. Fust, N. Bellwald, and C. Winkler, “Fostering self-regulated entrepreneurial learning in entrepreneurship education,” in Annals of Entrepreneurship Education and Pedagogy - 2025, Edward Elgar Publishing, 2025, pp. 249–265. mla: Fahrbach, Manuel, et al. “Fostering Self-Regulated Entrepreneurial Learning in Entrepreneurship Education.” Annals of Entrepreneurship Education and Pedagogy - 2025, Edward Elgar Publishing, 2025, pp. 249–265, doi:10.4337/9781035325795.00021. short: 'M. Fahrbach, T. Jenert, A. Fust, N. Bellwald, C. Winkler, in: Annals of Entrepreneurship Education and Pedagogy - 2025, Edward Elgar Publishing, 2025, pp. 249–265.' date_created: 2025-02-28T14:42:29Z date_updated: 2025-12-08T10:57:18Z department: - _id: '208' - _id: '640' doi: 10.4337/9781035325795.00021 keyword: - Self-Regulated Learning - Entrepreneurship Education - Entrepreneurship Research language: - iso: eng page: 249–265 project: - _id: '618' name: Self-Regulated Learning for Entrepreneurs – Förderung der Selbstregulationsfähigkeit angehender Unternehmer*innen publication: Annals of Entrepreneurship Education and Pedagogy - 2025 publication_identifier: isbn: - '9781035325795' - '9781035325788' - '9781035325795' publication_status: published publisher: Edward Elgar Publishing quality_controlled: '1' status: public title: Fostering self-regulated entrepreneurial learning in entrepreneurship education type: book_chapter user_id: '71994' year: '2025' ... --- _id: '51518' abstract: - lang: eng text: In applications of piezoelectric actuators and sensors, the dependability and particularly the reliability throughout their lifetime are vital to manufacturers and end-users and are enabled through condition-monitoring approaches. Existing approaches often utilize impedance measurements over a range of frequencies or velocity measurements and require additional equipment or sensors, such as a laser Doppler vibrometer. Furthermore, the non-negligible effects of varying operating conditions are often unconsidered. To minimize the need for additional sensors while maintaining the dependability of piezoelectric bending actuators irrespective of varying operating conditions, an online diagnostics approach is proposed. To this end, time- and frequency-domain features are extracted from monitored current signals to reflect hairline crack development in bending actuators. For validation of applicability, the presented analysis method was evaluated on piezoelectric bending actuators subjected to accelerated lifetime tests at varying voltage amplitudes and under external damping conditions. In the presence of a crack and due to a diminished stiffness, the resonance frequency decreases and the root-mean-square amplitude of the current signal simultaneously abruptly drops during the lifetime tests. Furthermore, the piezoelectric crack surfaces clapping is reflected in higher harmonics of the current signal. Thus, time-domain features and harmonics of the current signals are sufficient to diagnose hairline cracks in the actuators. article_number: '521' article_type: original author: - first_name: Osarenren Kennedy full_name: Aimiyekagbon, Osarenren Kennedy id: '9557' last_name: Aimiyekagbon - first_name: Amelie full_name: Bender, Amelie id: '54290' last_name: Bender - first_name: Tobias full_name: Hemsel, Tobias id: '210' last_name: Hemsel - first_name: Walter full_name: Sextro, Walter id: '21220' last_name: Sextro citation: ama: Aimiyekagbon OK, Bender A, Hemsel T, Sextro W. Diagnostics of Piezoelectric Bending Actuators Subjected to Varying Operating Conditions. Electronics. 2024;13(3). doi:10.3390/electronics13030521 apa: Aimiyekagbon, O. K., Bender, A., Hemsel, T., & Sextro, W. (2024). Diagnostics of Piezoelectric Bending Actuators Subjected to Varying Operating Conditions. Electronics, 13(3), Article 521. https://doi.org/10.3390/electronics13030521 bibtex: '@article{Aimiyekagbon_Bender_Hemsel_Sextro_2024, title={Diagnostics of Piezoelectric Bending Actuators Subjected to Varying Operating Conditions}, volume={13}, DOI={10.3390/electronics13030521}, number={3521}, journal={Electronics}, publisher={MDPI AG}, author={Aimiyekagbon, Osarenren Kennedy and Bender, Amelie and Hemsel, Tobias and Sextro, Walter}, year={2024} }' chicago: Aimiyekagbon, Osarenren Kennedy, Amelie Bender, Tobias Hemsel, and Walter Sextro. “Diagnostics of Piezoelectric Bending Actuators Subjected to Varying Operating Conditions.” Electronics 13, no. 3 (2024). https://doi.org/10.3390/electronics13030521. ieee: 'O. K. Aimiyekagbon, A. Bender, T. Hemsel, and W. Sextro, “Diagnostics of Piezoelectric Bending Actuators Subjected to Varying Operating Conditions,” Electronics, vol. 13, no. 3, Art. no. 521, 2024, doi: 10.3390/electronics13030521.' mla: Aimiyekagbon, Osarenren Kennedy, et al. “Diagnostics of Piezoelectric Bending Actuators Subjected to Varying Operating Conditions.” Electronics, vol. 13, no. 3, 521, MDPI AG, 2024, doi:10.3390/electronics13030521. short: O.K. Aimiyekagbon, A. Bender, T. Hemsel, W. Sextro, Electronics 13 (2024). date_created: 2024-02-20T06:46:43Z date_updated: 2024-03-15T16:15:56Z department: - _id: '151' doi: 10.3390/electronics13030521 funded_apc: '1' intvolume: ' 13' issue: '3' keyword: - piezoelectric transducer - self-sensing - fault detection - diagnostics - hairline crack - condition monitoring language: - iso: eng publication: Electronics publication_identifier: issn: - 2079-9292 publication_status: published publisher: MDPI AG quality_controlled: '1' status: public title: Diagnostics of Piezoelectric Bending Actuators Subjected to Varying Operating Conditions type: journal_article user_id: '9557' volume: 13 year: '2024' ... --- _id: '44092' abstract: - lang: eng 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." article_type: original author: - first_name: Jeannette full_name: Brosig-Koch, Jeannette last_name: Brosig-Koch - first_name: Burkhard full_name: Hehenkamp, Burkhard id: '37339' last_name: Hehenkamp - first_name: Johanna full_name: Kokot, Johanna last_name: Kokot citation: 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. Health Economics. Published online 2023. doi:10.1002/hec.4689 apa: Brosig-Koch, J., Hehenkamp, B., & Kokot, J. (2023). Who benefits from quality competition in health care? A theory and a laboratory experiment on the relevance of patient characteristics. Health Economics. https://doi.org/10.1002/hec.4689 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={10.1002/hec.4689}, journal={Health Economics}, author={Brosig-Koch, Jeannette and Hehenkamp, Burkhard and Kokot, Johanna}, year={2023} }' 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.” Health Economics, 2023. https://doi.org/10.1002/hec.4689. 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,” Health Economics, 2023, doi: 10.1002/hec.4689.' 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.” Health Economics, 2023, doi:10.1002/hec.4689. short: J. Brosig-Koch, B. Hehenkamp, J. Kokot, Health Economics (2023). date_created: 2023-04-20T17:02:41Z date_updated: 2023-04-20T17:16:14Z department: - _id: '280' - _id: '475' doi: 10.1002/hec.4689 jel: - I11 - D43 - C91 keyword: - physician competition - patient characteristics - heterogeneity in quality responses - fee-for-service - laboratory experiment language: - iso: eng project: - _id: '1' name: 'SFB 901: SFB 901' - _id: '2' name: 'SFB 901 - A: SFB 901 - Project Area A' - _id: '7' name: 'SFB 901 - A3: SFB 901 - Subproject A3' publication: Health Economics quality_controlled: '1' status: public title: Who benefits from quality competition in health care? A theory and a laboratory experiment on the relevance of patient characteristics type: journal_article user_id: '37339' year: '2023' ... --- _id: '62969' author: - first_name: Pascal full_name: Pollmeier, Pascal id: '44191' last_name: Pollmeier - first_name: Christoph full_name: Vogelsang, Christoph id: '4245' last_name: Vogelsang orcid: 0000-0002-5804-1855 - first_name: Sabine full_name: Fechner, Sabine id: '54823' last_name: Fechner orcid: 0000-0001-5645-5870 citation: ama: 'Pollmeier P, Vogelsang C, Fechner S. Evidence based practice of pre-service teachers. In: 15th Conference of the European Science Education Research Association (ESERA). ; 2023.' apa: Pollmeier, P., Vogelsang, C., & Fechner, S. (2023). Evidence based practice of pre-service teachers. 15th Conference of the European Science Education Research Association (ESERA). 15th Conference of the European Science Education Research Association (ESERA), Cappadocia. bibtex: '@inproceedings{Pollmeier_Vogelsang_Fechner_2023, title={Evidence based practice of pre-service teachers}, booktitle={15th Conference of the European Science Education Research Association (ESERA)}, author={Pollmeier, Pascal and Vogelsang, Christoph and Fechner, Sabine}, year={2023} }' chicago: Pollmeier, Pascal, Christoph Vogelsang, and Sabine Fechner. “Evidence Based Practice of Pre-Service Teachers.” In 15th Conference of the European Science Education Research Association (ESERA), 2023. ieee: P. Pollmeier, C. Vogelsang, and S. Fechner, “Evidence based practice of pre-service teachers,” presented at the 15th Conference of the European Science Education Research Association (ESERA), Cappadocia, 2023. mla: Pollmeier, Pascal, et al. “Evidence Based Practice of Pre-Service Teachers.” 15th Conference of the European Science Education Research Association (ESERA), 2023. short: 'P. Pollmeier, C. Vogelsang, S. Fechner, in: 15th Conference of the European Science Education Research Association (ESERA), 2023.' conference: location: Cappadocia name: 15th Conference of the European Science Education Research Association (ESERA) date_created: 2025-12-08T09:56:33Z date_updated: 2025-12-13T23:45:09Z department: - _id: '386' - _id: '33' keyword: - Epistemologie - Evidenzen - Daten - Umgang mit Daten - Kompetenzen - Studierende - pre-service teachers language: - iso: eng publication: 15th Conference of the European Science Education Research Association (ESERA) quality_controlled: '1' status: public title: Evidence based practice of pre-service teachers type: conference_abstract user_id: '54823' year: '2023' ... --- _id: '30289' abstract: - lang: eng text: This chapter presents a discussion of the concept of agency. Agency is understood as a multifaceted construct describing the idea that human beings make choices, act on these choices, and thereby exercise influence on their own lives as well as their environment. We argue that the concept is discussed from three different perspectives in the literature—transformational, dispositional, and relational—that are each related to learning and development in work contexts. These perspectives do not reflect incompatible positions but rather different aspects of the same phenomena. The chapter also offers an avenue of insight into empirical studies that employ agency as a central concept as well as discussions about concepts that closely overlap with ideas of human beings as agents of power and influence. author: - first_name: Michael full_name: Goller, Michael id: '30984' last_name: Goller orcid: 0000-0002-2820-9178 - first_name: Susanna full_name: Paloniemi, Susanna last_name: Paloniemi citation: ama: 'Goller M, Paloniemi S. Agency: Taking Stock of Workplace Learning Research. In: Research Approaches on Workplace Learning. Springer International Publishing; 2022. doi:10.1007/978-3-030-89582-2_1' apa: 'Goller, M., & Paloniemi, S. (2022). Agency: Taking Stock of Workplace Learning Research. In Research Approaches on Workplace Learning. Springer International Publishing. https://doi.org/10.1007/978-3-030-89582-2_1' bibtex: '@inbook{Goller_Paloniemi_2022, place={Cham}, title={Agency: Taking Stock of Workplace Learning Research}, DOI={10.1007/978-3-030-89582-2_1}, booktitle={Research Approaches on Workplace Learning}, publisher={Springer International Publishing}, author={Goller, Michael and Paloniemi, Susanna}, year={2022} }' chicago: 'Goller, Michael, and Susanna Paloniemi. “Agency: Taking Stock of Workplace Learning Research.” In Research Approaches on Workplace Learning. Cham: Springer International Publishing, 2022. https://doi.org/10.1007/978-3-030-89582-2_1.' ieee: 'M. Goller and S. Paloniemi, “Agency: Taking Stock of Workplace Learning Research,” in Research Approaches on Workplace Learning, Cham: Springer International Publishing, 2022.' mla: 'Goller, Michael, and Susanna Paloniemi. “Agency: Taking Stock of Workplace Learning Research.” Research Approaches on Workplace Learning, Springer International Publishing, 2022, doi:10.1007/978-3-030-89582-2_1.' short: 'M. Goller, S. Paloniemi, in: Research Approaches on Workplace Learning, Springer International Publishing, Cham, 2022.' date_created: 2022-03-13T19:09:20Z date_updated: 2022-03-13T19:14:43Z department: - _id: '452' doi: 10.1007/978-3-030-89582-2_1 keyword: - Agency Workplace learning Professional development Proactivity Self-direction language: - iso: eng place: Cham publication: Research Approaches on Workplace Learning publication_identifier: isbn: - '9783030895815' - '9783030895822' issn: - 2210-5549 - 2210-5557 publication_status: published publisher: Springer International Publishing related_material: link: - relation: other url: https://link.springer.com/chapter/10.1007/978-3-030-89582-2_1#Abs1 status: public title: 'Agency: Taking Stock of Workplace Learning Research' type: book_chapter user_id: '50788' year: '2022' ... --- _id: '30290' abstract: - lang: eng text: The article explores the particular quality of changes introduced through the latest wave of digital transformation of workplaces. It has effects on workflow processes, on distribution of work and tasks, and the mode of distributing working tasks, e.g. through cyber-physical systems. Hence, the changes in work are manifold and require changes in vocational education and training as well as in workplace learning. These changes reveal new challenges for research on workplace learning. Finally, conclusions for future workplace learning research will be developed. author: - first_name: Christian full_name: Harteis, Christian id: '27503' last_name: Harteis orcid: https://orcid.org/0000-0002-3570-7626 citation: ama: 'Harteis C. Research on Workplace Learning in Times of Digitalisation. In: Research Approaches on Workplace Learning. Springer International Publishing; 2022. doi:10.1007/978-3-030-89582-2_19' apa: Harteis, C. (2022). Research on Workplace Learning in Times of Digitalisation. In Research Approaches on Workplace Learning. Springer International Publishing. https://doi.org/10.1007/978-3-030-89582-2_19 bibtex: '@inbook{Harteis_2022, place={Cham}, title={Research on Workplace Learning in Times of Digitalisation}, DOI={10.1007/978-3-030-89582-2_19}, booktitle={Research Approaches on Workplace Learning}, publisher={Springer International Publishing}, author={Harteis, Christian}, year={2022} }' chicago: 'Harteis, Christian. “Research on Workplace Learning in Times of Digitalisation.” In Research Approaches on Workplace Learning. Cham: Springer International Publishing, 2022. https://doi.org/10.1007/978-3-030-89582-2_19.' ieee: 'C. Harteis, “Research on Workplace Learning in Times of Digitalisation,” in Research Approaches on Workplace Learning, Cham: Springer International Publishing, 2022.' mla: Harteis, Christian. “Research on Workplace Learning in Times of Digitalisation.” Research Approaches on Workplace Learning, Springer International Publishing, 2022, doi:10.1007/978-3-030-89582-2_19. short: 'C. Harteis, in: Research Approaches on Workplace Learning, Springer International Publishing, Cham, 2022.' date_created: 2022-03-13T19:11:33Z date_updated: 2022-03-13T19:14:38Z department: - _id: '452' doi: 10.1007/978-3-030-89582-2_19 keyword: - Digitalisation Self organisation Distribution of labour Automation language: - iso: eng place: Cham publication: Research Approaches on Workplace Learning publication_identifier: isbn: - '9783030895815' - '9783030895822' issn: - 2210-5549 - 2210-5557 publication_status: published publisher: Springer International Publishing related_material: link: - relation: other url: https://link.springer.com/chapter/10.1007/978-3-030-89582-2_19#citeas status: public title: Research on Workplace Learning in Times of Digitalisation type: book_chapter user_id: '50788' year: '2022' ... --- _id: '29842' abstract: - lang: eng text: To build successful software products, developers continuously have to discover what features the users really need. This discovery can be achieved with continuous experimentation, testing different software variants with distinct user groups, and deploying the superior variant for all users. However, existing approaches do not focus on explicit modeling of variants and experiments, which offers advantages such as traceability of decisions and combinability of experiments. Therefore, our vision is the provision of model-driven continuous experimentation, which provides the developer with a framework for structuring the experimentation process. For that, we introduce the overall concept, apply it to the experimentation on component-based software architectures and point out future research questions. In particular, we show the applicability by combining feature models for modeling the software variants, users, and experiments (i.e., model-driven) with MAPE-K for the adaptation (i.e., continuous experimentation) and implementing the concept based on the component-based Angular framework. author: - first_name: Sebastian full_name: Gottschalk, Sebastian id: '47208' last_name: Gottschalk - first_name: Enes full_name: Yigitbas, Enes id: '8447' last_name: Yigitbas orcid: 0000-0002-5967-833X - first_name: Gregor full_name: Engels, Gregor id: '107' last_name: Engels citation: ama: 'Gottschalk S, Yigitbas E, Engels G. Model-driven Continuous Experimentation on Component-based Software Architectures . In: Proceedings of the 18th International Conference on Software Architecture Companion . IEEE; 2022. doi:10.1109/ICSA-C54293.2022.00011' apa: Gottschalk, S., Yigitbas, E., & Engels, G. (2022). Model-driven Continuous Experimentation on Component-based Software Architectures . Proceedings of the 18th International Conference on Software Architecture Companion . 18th International Conference on Software Architecture , Hawaii. https://doi.org/10.1109/ICSA-C54293.2022.00011 bibtex: '@inproceedings{Gottschalk_Yigitbas_Engels_2022, title={Model-driven Continuous Experimentation on Component-based Software Architectures }, DOI={10.1109/ICSA-C54293.2022.00011}, booktitle={Proceedings of the 18th International Conference on Software Architecture Companion }, publisher={IEEE}, author={Gottschalk, Sebastian and Yigitbas, Enes and Engels, Gregor}, year={2022} }' chicago: Gottschalk, Sebastian, Enes Yigitbas, and Gregor Engels. “Model-Driven Continuous Experimentation on Component-Based Software Architectures .” In Proceedings of the 18th International Conference on Software Architecture Companion . IEEE, 2022. https://doi.org/10.1109/ICSA-C54293.2022.00011. ieee: 'S. Gottschalk, E. Yigitbas, and G. Engels, “Model-driven Continuous Experimentation on Component-based Software Architectures ,” presented at the 18th International Conference on Software Architecture , Hawaii, 2022, doi: 10.1109/ICSA-C54293.2022.00011.' mla: Gottschalk, Sebastian, et al. “Model-Driven Continuous Experimentation on Component-Based Software Architectures .” Proceedings of the 18th International Conference on Software Architecture Companion , IEEE, 2022, doi:10.1109/ICSA-C54293.2022.00011. short: 'S. Gottschalk, E. Yigitbas, G. Engels, in: Proceedings of the 18th International Conference on Software Architecture Companion , IEEE, 2022.' conference: end_date: 2022-03-15 location: Hawaii name: '18th International Conference on Software Architecture ' start_date: 2022-03-12 date_created: 2022-02-15T07:32:10Z date_updated: 2022-07-04T12:34:53Z ddc: - '000' department: - _id: '66' - _id: '534' doi: 10.1109/ICSA-C54293.2022.00011 file: - access_level: open_access content_type: application/pdf creator: sego date_created: 2022-07-04T12:33:18Z date_updated: 2022-07-04T12:34:52Z file_id: '32322' file_name: ICSA_CR.pdf file_size: 183185 relation: main_file file_date_updated: 2022-07-04T12:34:52Z has_accepted_license: '1' keyword: - continuous experimentation - model-driven - component-based software architectures - self-adaptation language: - iso: eng oa: '1' project: - _id: '1' name: 'SFB 901: SFB 901' - _id: '4' name: 'SFB 901 - C: SFB 901 - Project Area C' - _id: '17' name: 'SFB 901 - C5: SFB 901 - Subproject C5' publication: 'Proceedings of the 18th International Conference on Software Architecture Companion ' publisher: IEEE status: public title: 'Model-driven Continuous Experimentation on Component-based Software Architectures ' type: conference user_id: '47208' year: '2022' ...