[{"user_id":"100325","_id":"63505","language":[{"iso":"eng"}],"article_number":"rnaf074","type":"journal_article","publication":"International Mathematics Research Notices","status":"public","abstract":[{"text":"Abstract\n The main goal of this work is to study the $L^{p}$-asymptotic behavior of solutions to the heat equation on arbitrary rank Riemannian symmetric spaces of non-compact-type $G/K$ for non-bi-$K$ invariant initial data. For initial data $u_{0}$ compactly supported or in a weighted $L^{1}(G/K)$ space with a weight depending on $p\\in [1, \\infty ]$, we introduce a mass function $M_{p}(u_{0})(\\cdot )$, and prove that if $h_{t}$ is the heat kernel on $G/K$, then $$ \\begin{align*} &\\|h_t\\|_p^{-1}\\,\\|u_0\\ast h_t \\, - \\,M_p(u_0)(\\cdot)\\,h_t\\|_p \\rightarrow 0 \\quad \\textrm{as} \\quad t\\rightarrow \\infty.\\end{align*} $$ Interestingly, the $L^{p}$ heat concentration leads to completely different expressions of the mass function for $1\\leq p <2$ and $2\\leq p\\leq \\infty $. If we further assume that the initial data are bi-$K$-invariant, then our mass function boils down to the constant $\\int _{G/K}u_{0}$ in the case $p=1$, and more generally to $\\mathcal{H}{u_{0}}(i\\rho (2/p-1))$ if $1\\leq p<2$, and to $\\mathcal{H}{u_{0}}(0)$ if $2\\leq p \\leq \\infty $. Thus, we improve upon results by Vázquez, Anker et al., and Naik et al., clarifying the nature of the problem.","lang":"eng"}],"author":[{"full_name":"Papageorgiou, Effie","last_name":"Papageorgiou","first_name":"Effie"}],"date_created":"2026-01-06T09:45:00Z","volume":2025,"publisher":"Oxford University Press (OUP)","date_updated":"2026-01-06T09:45:12Z","doi":"10.1093/imrn/rnaf074","title":"L\n p Asymptotics for the Heat Equation on Symmetric Spaces for Non-symmetric Solutions","issue":"7","publication_status":"published","publication_identifier":{"issn":["1073-7928","1687-0247"]},"citation":{"ama":"Papageorgiou E. L          p Asymptotics for the Heat Equation on Symmetric Spaces for Non-symmetric Solutions. International Mathematics Research Notices. 2025;2025(7). doi:10.1093/imrn/rnaf074","ieee":"E. Papageorgiou, “L          p Asymptotics for the Heat Equation on Symmetric Spaces for Non-symmetric Solutions,” International Mathematics Research Notices, vol. 2025, no. 7, Art. no. rnaf074, 2025, doi: 10.1093/imrn/rnaf074.","chicago":"Papageorgiou, Effie. “L          p Asymptotics for the Heat Equation on Symmetric Spaces for Non-Symmetric Solutions.” International Mathematics Research Notices 2025, no. 7 (2025). https://doi.org/10.1093/imrn/rnaf074.","mla":"Papageorgiou, Effie. “L          p Asymptotics for the Heat Equation on Symmetric Spaces for Non-Symmetric Solutions.” International Mathematics Research Notices, vol. 2025, no. 7, rnaf074, Oxford University Press (OUP), 2025, doi:10.1093/imrn/rnaf074.","short":"E. Papageorgiou, International Mathematics Research Notices 2025 (2025).","bibtex":"@article{Papageorgiou_2025, title={L          p Asymptotics for the Heat Equation on Symmetric Spaces for Non-symmetric Solutions}, volume={2025}, DOI={10.1093/imrn/rnaf074}, number={7rnaf074}, journal={International Mathematics Research Notices}, publisher={Oxford University Press (OUP)}, author={Papageorgiou, Effie}, year={2025} }","apa":"Papageorgiou, E. (2025). L          p Asymptotics for the Heat Equation on Symmetric Spaces for Non-symmetric Solutions. International Mathematics Research Notices, 2025(7), Article rnaf074. https://doi.org/10.1093/imrn/rnaf074"},"intvolume":" 2025","year":"2025"},{"publication_status":"published","publication_identifier":{"isbn":["978-3-947647-51-4"],"issn":["2365-4422"]},"citation":{"apa":"Wiechel, D. (2025). Modellbasierte Wirkkettenanalyse zur Bewertung technischer Änderungen (Vol. 432). https://doi.org/10.17619/UNIPB/1-2473","short":"D. Wiechel, Modellbasierte Wirkkettenanalyse Zur Bewertung Technischer Änderungen, Paderborn, 2025.","bibtex":"@book{Wiechel_2025, place={Paderborn}, series={Verlagsschriftenreihe des Heinz Nixdorf Instituts}, title={Modellbasierte Wirkkettenanalyse zur Bewertung technischer Änderungen}, volume={432}, DOI={10.17619/UNIPB/1-2473}, author={Wiechel, Dominik}, year={2025}, collection={Verlagsschriftenreihe des Heinz Nixdorf Instituts} }","mla":"Wiechel, Dominik. Modellbasierte Wirkkettenanalyse Zur Bewertung Technischer Änderungen. 2025, doi:10.17619/UNIPB/1-2473.","ama":"Wiechel D. Modellbasierte Wirkkettenanalyse Zur Bewertung Technischer Änderungen. Vol 432.; 2025. doi:10.17619/UNIPB/1-2473","chicago":"Wiechel, Dominik. Modellbasierte Wirkkettenanalyse Zur Bewertung Technischer Änderungen. Vol. 432. Verlagsschriftenreihe Des Heinz Nixdorf Instituts. Paderborn, 2025. https://doi.org/10.17619/UNIPB/1-2473.","ieee":"D. Wiechel, Modellbasierte Wirkkettenanalyse zur Bewertung technischer Änderungen, vol. 432. Paderborn, 2025."},"intvolume":" 432","place":"Paderborn","year":"2025","author":[{"first_name":"Dominik","full_name":"Wiechel, Dominik","last_name":"Wiechel"}],"date_created":"2026-01-06T20:20:58Z","volume":432,"date_updated":"2026-01-06T20:27:08Z","doi":"10.17619/UNIPB/1-2473","title":"Modellbasierte Wirkkettenanalyse zur Bewertung technischer Änderungen","type":"dissertation","status":"public","abstract":[{"lang":"eng","text":"Der unsystematische und ineffiziente Umgang mit technischen Änderungen führt zuhohen Personalkosten durch Mehraufwand, einer reduzierten Entscheidungsqualität und kannin Projektfehlschlägen resultieren. Herausforderungen beim Umgang mit technischen Änderungenliegen in der Berücksichtigung relevanter Ursache-Wirkungs-Zusammenhänge, der quantitativen und qualitativen Bewertung der Auswirkungen und der effizienten prozessualen Einbindung. Mithilfe eines modellbasierten Lösungsansatzes lassen sich die Auswirkungen technischer Änderungen schneller bewerten und fundierte Entwicklungsentscheidungen treffen. In der vorliegenden Dissertation wird eine Methodik für die Entwicklung modell-basierter Wirkkettenanalysen zur Bewertung technischer Änderungen beschrieben. Durch die modellbasierte Wirkkettenanalyse können direkt oder indirekt von der Änderung betroffene Modellelemente identifiziert werden. Das Datenmodell wird mithilfe von Abfragesprachen analysiert und die Auswirkungen werden mithilfe von integrierten Metriken quantifiziert. Die Ergebnisse der Wirkkettenanalyse werden in rollenspezifischen Sichten bereitgestellt, wodurch eine bedarfsgerechte Entscheidungsunterstützung gewährleistet wird. Die Validierung anhand von vier industriellen Fallstudien belegt die Praxistauglichkeit der Methodik. Die Methodik verbindet das Änderungsmanagement mit den Vorteilen einer modellbasierten Systementwicklung und bildet somit einen synergetischen neuen Forschungsbereich."},{"text":"The unsystematic and inefficient handling of technical changes leads to high personnel costs due to additional work, reduced decision-making quality and can result in project failures. The challenges in dealing with technical changes arise in the consideration of relevant cause-and-effect relationships, the quantitative and qualitative assessment of the effects and the efficient process integration. With the help of a model-based solution approach, the effects of technical changes can be assessed more quickly and profound development decisions can be made. This dissertation describes a methodology for the development of model-based effect chain analyses for the evaluation of technical changes. Model-based effect chain analyses can be used to identify model elements that are directly or indirectly affected by the change. The data model is analysed using query languages and the effects are quantified using integrated metrics. The results of the impact chain analysis are provided in role-specific views, which ensures needs-based decision support. The validation based on four industrial case studies demonstrates the practical applicability of the methodology. The methodology combines change management with the advantages of model-based system development and thus forms a synergetic new area of research.","lang":"eng"}],"series_title":"Verlagsschriftenreihe des Heinz Nixdorf Instituts","user_id":"67161","department":[{"_id":"152"}],"_id":"63511","extern":"1","language":[{"iso":"eng"}]},{"publication_status":"published","citation":{"apa":"Althaus, M., Beverungen, D., Flath, B., Halimeh, H., Hansmeier, P., zur Heiden, P., Kundisch, D., Müller, M., Müller, O., Oberthür, S., Vorbohle, C., Momen Pour Tafreshi, M., Mauß, S., Mücke, A., Müller, J., Peter, M., Schmitt-Chandon, A., Sellerberg, K., & Steinhäuser, M. (2025). Positionspapier Use Case 1: Vernetzte Kulturplattformen.","mla":"Althaus, Maike, et al. Positionspapier Use Case 1: Vernetzte Kulturplattformen. 2025.","short":"M. Althaus, D. Beverungen, B. Flath, H. Halimeh, P. Hansmeier, P. zur Heiden, D. Kundisch, M. Müller, O. Müller, S. Oberthür, C. Vorbohle, M. Momen Pour Tafreshi, S. Mauß, A. Mücke, J. Müller, M. Peter, A. Schmitt-Chandon, K. Sellerberg, M. Steinhäuser, Positionspapier Use Case 1: Vernetzte Kulturplattformen, Universität Paderborn, SICP, 2025.","bibtex":"@book{Althaus_Beverungen_Flath_Halimeh_Hansmeier_zur Heiden_Kundisch_Müller_Müller_Oberthür_et al._2025, place={Universität Paderborn, SICP}, title={Positionspapier Use Case 1: Vernetzte Kulturplattformen}, author={Althaus, Maike and Beverungen, Daniel and Flath, Beate and Halimeh, Haya and Hansmeier, Philipp and zur Heiden, Philipp and Kundisch, Dennis and Müller, Michelle and Müller, Oliver and Oberthür, Simon and et al.}, year={2025} }","chicago":"Althaus, Maike, Daniel Beverungen, Beate Flath, Haya Halimeh, Philipp Hansmeier, Philipp zur Heiden, Dennis Kundisch, et al. Positionspapier Use Case 1: Vernetzte Kulturplattformen. Universität Paderborn, SICP, 2025.","ieee":"M. Althaus et al., Positionspapier Use Case 1: Vernetzte Kulturplattformen. Universität Paderborn, SICP, 2025.","ama":"Althaus M, Beverungen D, Flath B, et al. Positionspapier Use Case 1: Vernetzte Kulturplattformen.; 2025."},"year":"2025","place":"Universität Paderborn, SICP","author":[{"last_name":"Althaus","id":"61896","full_name":"Althaus, Maike","first_name":"Maike"},{"full_name":"Beverungen, Daniel","id":"59677","last_name":"Beverungen","first_name":"Daniel"},{"first_name":"Beate","id":"58896","full_name":"Flath, Beate","orcid":"https://orcid.org/0000-0002-1648-0796","last_name":"Flath"},{"first_name":"Haya","id":"87673","full_name":"Halimeh, Haya","last_name":"Halimeh"},{"full_name":"Hansmeier, Philipp","id":"55603","last_name":"Hansmeier","first_name":"Philipp"},{"first_name":"Philipp","last_name":"zur Heiden","full_name":"zur Heiden, Philipp","id":"64394"},{"full_name":"Kundisch, Dennis","id":"21117","last_name":"Kundisch","first_name":"Dennis"},{"first_name":"Michelle","id":"50286","full_name":"Müller, Michelle","last_name":"Müller"},{"last_name":"Müller","id":"72849","full_name":"Müller, Oliver","first_name":"Oliver"},{"id":"383","full_name":"Oberthür, Simon","last_name":"Oberthür","first_name":"Simon"},{"first_name":"Christian","id":"29951","full_name":"Vorbohle, Christian","last_name":"Vorbohle"},{"full_name":"Momen Pour Tafreshi, Maryam","last_name":"Momen Pour Tafreshi","first_name":"Maryam"},{"first_name":"Sebastian","last_name":"Mauß","full_name":"Mauß, Sebastian"},{"last_name":"Mücke","full_name":"Mücke, Alina","first_name":"Alina"},{"full_name":"Müller, Jörg","last_name":"Müller","first_name":"Jörg"},{"last_name":"Peter","full_name":"Peter, Malte","first_name":"Malte"},{"first_name":"Ariane","last_name":"Schmitt-Chandon","full_name":"Schmitt-Chandon, Ariane"},{"full_name":"Sellerberg, Kerstin","last_name":"Sellerberg","first_name":"Kerstin"},{"full_name":"Steinhäuser, Moritz","last_name":"Steinhäuser","first_name":"Moritz"}],"date_created":"2025-12-10T15:50:35Z","date_updated":"2026-01-07T13:41:32Z","title":"Positionspapier Use Case 1: Vernetzte Kulturplattformen","type":"working_paper","status":"public","user_id":"87673","department":[{"_id":"276"},{"_id":"526"},{"_id":"196"},{"_id":"735"}],"project":[{"_id":"160","name":"DatenraumKultur: Use Case 1 - Kulturplattformen - Datenraum Kultur"}],"_id":"63026","language":[{"iso":"ger"}]},{"issue":"19","publication_identifier":{"issn":["1864-5631","1864-564X"]},"publication_status":"published","intvolume":" 18","citation":{"ama":"Pan Y, Liao L, Zhang X, Liu Y, Su R, Lopez Salas N. Oxidation‐Enhanced Piezocatalytic Activity in Carbon Nitride‐Based Catalysts for Hydrogen and Hydrogen Peroxide Production. ChemSusChem. 2025;18(19). doi:10.1002/cssc.202500980","ieee":"Y. Pan, L. Liao, X. Zhang, Y. Liu, R. Su, and N. Lopez Salas, “Oxidation‐Enhanced Piezocatalytic Activity in Carbon Nitride‐Based Catalysts for Hydrogen and Hydrogen Peroxide Production,” ChemSusChem, vol. 18, no. 19, Art. no. e202500980, 2025, doi: 10.1002/cssc.202500980.","chicago":"Pan, Ying, Luocheng Liao, Xinwen Zhang, Yunya Liu, Ran Su, and Nieves Lopez Salas. “Oxidation‐Enhanced Piezocatalytic Activity in Carbon Nitride‐Based Catalysts for Hydrogen and Hydrogen Peroxide Production.” ChemSusChem 18, no. 19 (2025). https://doi.org/10.1002/cssc.202500980.","short":"Y. Pan, L. Liao, X. Zhang, Y. Liu, R. Su, N. Lopez Salas, ChemSusChem 18 (2025).","mla":"Pan, Ying, et al. “Oxidation‐Enhanced Piezocatalytic Activity in Carbon Nitride‐Based Catalysts for Hydrogen and Hydrogen Peroxide Production.” ChemSusChem, vol. 18, no. 19, e202500980, Wiley, 2025, doi:10.1002/cssc.202500980.","bibtex":"@article{Pan_Liao_Zhang_Liu_Su_Lopez Salas_2025, title={Oxidation‐Enhanced Piezocatalytic Activity in Carbon Nitride‐Based Catalysts for Hydrogen and Hydrogen Peroxide Production}, volume={18}, DOI={10.1002/cssc.202500980}, number={19e202500980}, journal={ChemSusChem}, publisher={Wiley}, author={Pan, Ying and Liao, Luocheng and Zhang, Xinwen and Liu, Yunya and Su, Ran and Lopez Salas, Nieves}, year={2025} }","apa":"Pan, Y., Liao, L., Zhang, X., Liu, Y., Su, R., & Lopez Salas, N. (2025). Oxidation‐Enhanced Piezocatalytic Activity in Carbon Nitride‐Based Catalysts for Hydrogen and Hydrogen Peroxide Production. ChemSusChem, 18(19), Article e202500980. https://doi.org/10.1002/cssc.202500980"},"year":"2025","volume":18,"author":[{"full_name":"Pan, Ying","last_name":"Pan","first_name":"Ying"},{"last_name":"Liao","full_name":"Liao, Luocheng","first_name":"Luocheng"},{"first_name":"Xinwen","last_name":"Zhang","full_name":"Zhang, Xinwen"},{"first_name":"Yunya","full_name":"Liu, Yunya","last_name":"Liu"},{"first_name":"Ran","last_name":"Su","full_name":"Su, Ran"},{"id":"98120","full_name":"Lopez Salas, Nieves","orcid":"https://orcid.org/0000-0002-8438-9548","last_name":"Lopez Salas","first_name":"Nieves"}],"date_created":"2025-11-27T13:13:31Z","date_updated":"2026-01-08T13:00:03Z","publisher":"Wiley","doi":"10.1002/cssc.202500980","title":"Oxidation‐Enhanced Piezocatalytic Activity in Carbon Nitride‐Based Catalysts for Hydrogen and Hydrogen Peroxide Production","publication":"ChemSusChem","type":"journal_article","status":"public","abstract":[{"lang":"eng","text":"Driven by the urgent need for a green, safe, and cost‐effective approach to producing H2 and H2O2—both highly valuable in green energy and environmental protection fields—piezocatalysis, which converts mechanical energy into valuable chemicals, has emerged as a promising solution. However, current catalyst systems face challenges due to the need for materials with both a strong piezoelectric effect and favorable catalytic activity. Herein, the construction of an oxidized carbon nitride (g‐C3N4) matrix anchored with TiO2 nanoparticles via alkaline hydrothermal treatment is reported. Under ultrasonication, the g‐C3N4/TiO2 composite exhibits optimal performance under carefully controlled alkaline hydrothermal conditions. With a low concentration of Ba(OH)2 during hydrothermal treatment, Ba(OH)2 provides an alkaline medium, oxidizing the g‐C3N4 species and introducing structural defects into the g‐C3N4 framework. The disruption of the g‐C3N4 matrix, along with its interaction with TiO2 nanoparticles, enhances the piezoelectric effect. Consequently, the oxidized g‐C3N4/TiO2 composite achieves a remarkable H2 production rate of 4427.2 μmol g−1 and an H2O2 production rate of 809.3 μmol g−1 within 1 h without the addition of any sacrificial agents or cocatalysts. This work presents an effective strategy for the structural optimization of g‐C3N4‐based materials and may inspire new approaches for designing advanced piezocatalysts."}],"user_id":"98120","_id":"62652","language":[{"iso":"eng"}],"article_number":"e202500980"},{"date_updated":"2026-01-08T12:58:07Z","publisher":"Wiley","date_created":"2025-11-27T13:13:16Z","author":[{"first_name":"Li","full_name":"Tao, Li","last_name":"Tao"},{"first_name":"Chun","full_name":"Li, Chun","last_name":"Li"},{"first_name":"Xuejun","full_name":"Lu, Xuejun","last_name":"Lu"},{"first_name":"Rameez Ahmad","full_name":"Mir, Rameez Ahmad","last_name":"Mir"},{"orcid":"https://orcid.org/0000-0002-8438-9548","last_name":"Lopez Salas","id":"98120","full_name":"Lopez Salas, Nieves","first_name":"Nieves"},{"full_name":"Liu, Jian","last_name":"Liu","first_name":"Jian"}],"volume":8,"title":"Adenine and D‐Ribose Coderived Activated Carbon with N‐Methyl‐2‐Pyrrolidone‐Modified Aqueous Electrolyte for Long‐Life Zinc‐Ion Capacitors","doi":"10.1002/batt.202500161","publication_status":"published","publication_identifier":{"issn":["2566-6223","2566-6223"]},"issue":"11","year":"2025","citation":{"ama":"Tao L, Li C, Lu X, Mir RA, Lopez Salas N, Liu J. Adenine and D‐Ribose Coderived Activated Carbon with N‐Methyl‐2‐Pyrrolidone‐Modified Aqueous Electrolyte for Long‐Life Zinc‐Ion Capacitors. Batteries & Supercaps. 2025;8(11). doi:10.1002/batt.202500161","chicago":"Tao, Li, Chun Li, Xuejun Lu, Rameez Ahmad Mir, Nieves Lopez Salas, and Jian Liu. “Adenine and D‐Ribose Coderived Activated Carbon with N‐Methyl‐2‐Pyrrolidone‐Modified Aqueous Electrolyte for Long‐Life Zinc‐Ion Capacitors.” Batteries & Supercaps 8, no. 11 (2025). https://doi.org/10.1002/batt.202500161.","ieee":"L. Tao, C. Li, X. Lu, R. A. Mir, N. Lopez Salas, and J. Liu, “Adenine and D‐Ribose Coderived Activated Carbon with N‐Methyl‐2‐Pyrrolidone‐Modified Aqueous Electrolyte for Long‐Life Zinc‐Ion Capacitors,” Batteries & Supercaps, vol. 8, no. 11, Art. no. e202500161, 2025, doi: 10.1002/batt.202500161.","short":"L. Tao, C. Li, X. Lu, R.A. Mir, N. Lopez Salas, J. Liu, Batteries & Supercaps 8 (2025).","bibtex":"@article{Tao_Li_Lu_Mir_Lopez Salas_Liu_2025, title={Adenine and D‐Ribose Coderived Activated Carbon with N‐Methyl‐2‐Pyrrolidone‐Modified Aqueous Electrolyte for Long‐Life Zinc‐Ion Capacitors}, volume={8}, DOI={10.1002/batt.202500161}, number={11e202500161}, journal={Batteries & Supercaps}, publisher={Wiley}, author={Tao, Li and Li, Chun and Lu, Xuejun and Mir, Rameez Ahmad and Lopez Salas, Nieves and Liu, Jian}, year={2025} }","mla":"Tao, Li, et al. “Adenine and D‐Ribose Coderived Activated Carbon with N‐Methyl‐2‐Pyrrolidone‐Modified Aqueous Electrolyte for Long‐Life Zinc‐Ion Capacitors.” Batteries & Supercaps, vol. 8, no. 11, e202500161, Wiley, 2025, doi:10.1002/batt.202500161.","apa":"Tao, L., Li, C., Lu, X., Mir, R. A., Lopez Salas, N., & Liu, J. (2025). Adenine and D‐Ribose Coderived Activated Carbon with N‐Methyl‐2‐Pyrrolidone‐Modified Aqueous Electrolyte for Long‐Life Zinc‐Ion Capacitors. Batteries & Supercaps, 8(11), Article e202500161. https://doi.org/10.1002/batt.202500161"},"intvolume":" 8","_id":"62651","user_id":"98120","article_number":"e202500161","language":[{"iso":"eng"}],"type":"journal_article","publication":"Batteries & Supercaps","abstract":[{"lang":"eng","text":"\r\n Aqueous zinc (Zn)‐ion capacitors (AZICs) have addressed considerable attention due to their high energy density, low toxicity, and rich abundance of Zn metal. However, the development of ultra‐long cycle life and high energy density AZICs is often hindered by the lack of adequately optimized active carbon (AC) electrodes and compatible electrolytes. Herein, high‐performance, free‐standing AC electrodes for AZICs are derived from sustainable precursors—adenine and D‐ribose—using magnesium chloride hexahydrate as an activation agent via a eutectic template strategy. Furthermore, an aqueous hybrid electrolyte tailored to the designed AC electrodes is developed, significantly enhancing the stability and cycle life of AZICs. The resulting AZIC achieves a high specific capacity of 164.39 F g\r\n −1\r\n at 0.1 A g\r\n −1\r\n and a magnificently long cell life of over 50 000 cycles with nearly 94.5% capacitance retention at 10 000\r\n th\r\n cycles, and 76.3% at 50 000\r\n th\r\n cycle. The pouch cell assembly also demonstrates comparable specific capacitance and energy density to the coin cell, underscoring the potential of large‐scale applications of AZICs.\r\n "}],"status":"public"},{"type":"journal_article","publication":"Transformation Groups","abstract":[{"lang":"eng","text":"Let $M$ be a symplectic manifold carrying a Hamiltonian $S^1$-action with\r\nmomentum map $J:M \\rightarrow \\mathbb{R}$ and consider the corresponding\r\nsymplectic quotient $\\mathcal{M}_0:=J^{-1}(0)/S^1$. We extend Sjamaar's complex\r\nof differential forms on $\\mathcal{M}_0$, whose cohomology is isomorphic to the\r\nsingular cohomology $H(\\mathcal{M}_0;\\mathbb{R})$ of $\\mathcal{M}_0$ with real\r\ncoefficients, to a complex of differential forms on $\\mathcal{M}_0$ associated\r\nwith a partial desingularization $\\widetilde{\\mathcal{M}}_0$, which we call\r\nresolution differential forms. The cohomology of that complex turns out to be\r\nisomorphic to the de Rham cohomology $H(\\widetilde{ \\mathcal{M}}_0)$ of\r\n$\\widetilde{\\mathcal{M}}_0$. Based on this, we derive a long exact sequence\r\ninvolving both $H(\\mathcal{M}_0;\\mathbb{R})$ and $H(\\widetilde{\r\n\\mathcal{M}}_0)$ and give conditions for its splitting. We then define a Kirwan\r\nmap $\\mathcal{K}:H_{S^1}(M) \\rightarrow H(\\widetilde{\\mathcal{M}}_0)$ from the\r\nequivariant cohomology $H_{S^1}(M)$ of $M$ to $H(\\widetilde{\\mathcal{M}}_0)$\r\nand show that its image contains the image of $H(\\mathcal{M}_0;\\mathbb{R})$ in\r\n$H(\\widetilde{\\mathcal{M}}_0)$ under the natural inclusion. Combining both\r\nresults in the case that all fixed point components of $M$ have vanishing odd\r\ncohomology we obtain a surjection $\\check \\kappa:H^\\textrm{ev}_{S^1}(M)\r\n\\rightarrow H^\\textrm{ev}(\\mathcal{M}_0;\\mathbb{R})$ in even degrees, while\r\nalready simple examples show that a similar surjection in odd degrees does not\r\nexist in general. As an interesting class of examples we study abelian polygon\r\nspaces."}],"status":"public","_id":"53412","user_id":"70575","department":[{"_id":"548"}],"article_type":"original","language":[{"iso":"eng"}],"publication_status":"epub_ahead","year":"2025","citation":{"ama":"Delarue B, Ramacher P, Schmitt M. Singular cohomology of symplectic quotients by circle actions and Kirwan  surjectivity. Transformation Groups. Published online 2025. doi:10.1007/s00031-025-09924-0","chicago":"Delarue, Benjamin, Pablo Ramacher, and Maximilian Schmitt. “Singular Cohomology of Symplectic Quotients by Circle Actions and Kirwan  Surjectivity.” Transformation Groups, 2025. https://doi.org/10.1007/s00031-025-09924-0.","ieee":"B. Delarue, P. Ramacher, and M. Schmitt, “Singular cohomology of symplectic quotients by circle actions and Kirwan  surjectivity,” Transformation Groups, 2025, doi: 10.1007/s00031-025-09924-0.","apa":"Delarue, B., Ramacher, P., & Schmitt, M. (2025). Singular cohomology of symplectic quotients by circle actions and Kirwan  surjectivity. Transformation Groups. https://doi.org/10.1007/s00031-025-09924-0","short":"B. Delarue, P. Ramacher, M. Schmitt, Transformation Groups (2025).","bibtex":"@article{Delarue_Ramacher_Schmitt_2025, title={Singular cohomology of symplectic quotients by circle actions and Kirwan  surjectivity}, DOI={10.1007/s00031-025-09924-0}, journal={Transformation Groups}, author={Delarue, Benjamin and Ramacher, Pablo and Schmitt, Maximilian}, year={2025} }","mla":"Delarue, Benjamin, et al. “Singular Cohomology of Symplectic Quotients by Circle Actions and Kirwan  Surjectivity.” Transformation Groups, 2025, doi:10.1007/s00031-025-09924-0."},"date_updated":"2026-01-09T09:27:08Z","date_created":"2024-04-11T12:30:59Z","author":[{"full_name":"Delarue, Benjamin","id":"70575","last_name":"Delarue","first_name":"Benjamin"},{"full_name":"Ramacher, Pablo","last_name":"Ramacher","first_name":"Pablo"},{"last_name":"Schmitt","full_name":"Schmitt, Maximilian","first_name":"Maximilian"}],"title":"Singular cohomology of symplectic quotients by circle actions and Kirwan surjectivity","doi":"10.1007/s00031-025-09924-0"},{"type":"preprint","status":"public","abstract":[{"text":"Let $G$ be a totally disconnected locally compact (tdlc) group. The contraction group $\\mathrm{con}(g)$ of an element $g\\in G$ is the set of all $h\\in G$ such that $g^n h g^{-n} \\to 1_G$ as $n \\to \\infty$. The nub of $g$ can then be characterized as the intersection $\\mathrm{nub}(g)$ of the closures of $\\mathrm{con}(g)$ and $\\mathrm{con}(g^{-1})$.\r\n Contraction groups and nubs provide important tools in the study of the structure of tdlc groups, as already evidenced in the work of G. Willis. It is known that $\\mathrm{nub}(g) = \\{1\\}$ if and only if $\\mathrm{con}(g)$ is closed. In general, contraction groups are not closed and computing the nub is typically a challenging problem.\r\n Maximal Kac-Moody groups over finite fields form a prominent family of non-discrete compactly generated simple tdlc groups. In this paper we give a complete description of the nub of any element in these groups.","lang":"eng"}],"department":[{"_id":"10"},{"_id":"87"},{"_id":"93"}],"user_id":"106729","_id":"63569","external_id":{"arxiv":["arXiv:2508.15506"]},"language":[{"iso":"eng"}],"citation":{"chicago":"Bischof, Sebastian, and Timothée Marquis. “Describing the Nub in Maximal Kac-Moody Groups,” 2025.","ieee":"S. Bischof and T. Marquis, “Describing the nub in maximal Kac-Moody groups.” 2025.","ama":"Bischof S, Marquis T. Describing the nub in maximal Kac-Moody groups. Published online 2025.","mla":"Bischof, Sebastian, and Timothée Marquis. Describing the Nub in Maximal Kac-Moody Groups. 2025.","short":"S. Bischof, T. Marquis, (2025).","bibtex":"@article{Bischof_Marquis_2025, title={Describing the nub in maximal Kac-Moody groups}, author={Bischof, Sebastian and Marquis, Timothée}, year={2025} }","apa":"Bischof, S., & Marquis, T. (2025). Describing the nub in maximal Kac-Moody groups."},"year":"2025","date_created":"2026-01-12T14:12:09Z","author":[{"id":"106729","full_name":"Bischof, Sebastian","last_name":"Bischof","first_name":"Sebastian"},{"first_name":"Timothée","full_name":"Marquis, Timothée","last_name":"Marquis"}],"date_updated":"2026-01-12T14:33:08Z","title":"Describing the nub in maximal Kac-Moody groups"},{"editor":[{"first_name":"Iris","full_name":"Schäfer, Iris","last_name":"Schäfer"},{"first_name":"Alexandra","last_name":"Karentzos","full_name":"Karentzos, Alexandra"},{"first_name":"Martina","last_name":"Wernli","full_name":"Wernli, Martina"}],"status":"public","publication":"Erzählte Mode. Transdisziplinäre Perspektiven auf Text- und Bildgewebe","type":"book_chapter","language":[{"iso":"ger"}],"_id":"60545","department":[{"_id":"18"},{"_id":"434"}],"user_id":"14972","series_title":"Fashion Studies","place":"Bielefeld","year":"2025","page":"19-38","citation":{"ieee":"K. Kraft, “Sich in Worte kleiden. Über das Verhältnis von Texten und Textilien,” in Erzählte Mode. Transdisziplinäre Perspektiven auf Text- und Bildgewebe, I. Schäfer, A. Karentzos, and M. Wernli, Eds. Bielefeld: transcript Verlag, 2025, pp. 19–38.","chicago":"Kraft, Kerstin. “Sich in Worte kleiden. Über das Verhältnis von Texten und Textilien.” In Erzählte Mode. Transdisziplinäre Perspektiven auf Text- und Bildgewebe, edited by Iris Schäfer, Alexandra Karentzos, and Martina Wernli, 19–38. Fashion Studies. Bielefeld: transcript Verlag, 2025. https://doi.org/10.14361/9783839473955-003.","bibtex":"@inbook{Kraft_2025, place={Bielefeld}, series={Fashion Studies}, title={Sich in Worte kleiden. Über das Verhältnis von Texten und Textilien}, DOI={10.14361/9783839473955-003}, booktitle={Erzählte Mode. Transdisziplinäre Perspektiven auf Text- und Bildgewebe}, publisher={transcript Verlag}, author={Kraft, Kerstin}, editor={Schäfer, Iris and Karentzos, Alexandra and Wernli, Martina}, year={2025}, pages={19–38}, collection={Fashion Studies} }","short":"K. Kraft, in: I. Schäfer, A. Karentzos, M. Wernli (Eds.), Erzählte Mode. Transdisziplinäre Perspektiven auf Text- und Bildgewebe, transcript Verlag, Bielefeld, 2025, pp. 19–38.","mla":"Kraft, Kerstin. “Sich in Worte kleiden. Über das Verhältnis von Texten und Textilien.” Erzählte Mode. Transdisziplinäre Perspektiven auf Text- und Bildgewebe, edited by Iris Schäfer et al., transcript Verlag, 2025, pp. 19–38, doi:10.14361/9783839473955-003.","ama":"Kraft K. Sich in Worte kleiden. Über das Verhältnis von Texten und Textilien. In: Schäfer I, Karentzos A, Wernli M, eds. Erzählte Mode. Transdisziplinäre Perspektiven auf Text- und Bildgewebe. Fashion Studies. transcript Verlag; 2025:19-38. doi:10.14361/9783839473955-003","apa":"Kraft, K. (2025). Sich in Worte kleiden. Über das Verhältnis von Texten und Textilien. In I. Schäfer, A. Karentzos, & M. Wernli (Eds.), Erzählte Mode. Transdisziplinäre Perspektiven auf Text- und Bildgewebe (pp. 19–38). transcript Verlag. https://doi.org/10.14361/9783839473955-003"},"publication_identifier":{"eisbn":["978-3-8394-7395-5"],"isbn":["978-3-8376-7395-1"]},"title":"Sich in Worte kleiden. Über das Verhältnis von Texten und Textilien","doi":"10.14361/9783839473955-003","date_updated":"2026-03-10T12:55:01Z","publisher":"transcript Verlag","date_created":"2025-07-08T08:38:17Z","author":[{"last_name":"Kraft","id":"22433","full_name":"Kraft, Kerstin","first_name":"Kerstin"}]},{"publication_status":"published","publication_identifier":{"issn":["2367-3370","2367-3389"],"isbn":["9783031835193","9783031835209"]},"citation":{"apa":"Schäfers, J., & Temmen, K. (2025). The Influence of an Immersive-Collaborative Learning Unit on the Technology Acceptance of 5G and AR of Industrial Mechanic Students. In M. E. Auer & T. Rüütmann (Eds.), Proceedings of the 27th International Conference on Interactive Collaborative Learning (ICL2024), Volume 4 (Vol. 1281, pp. 84 – 91). Springer Nature Switzerland. https://doi.org/10.1007/978-3-031-83520-9_8","mla":"Schäfers, Johannes, and Katrin Temmen. “The Influence of an Immersive-Collaborative Learning Unit on the Technology Acceptance of 5G and AR of Industrial Mechanic Students.” Proceedings of the 27th International Conference on Interactive Collaborative Learning (ICL2024), Volume 4, edited by Michael E. Auer and Tiia Rüütmann, vol. 1281, Springer Nature Switzerland, 2025, pp. 84 – 91, doi:10.1007/978-3-031-83520-9_8.","short":"J. Schäfers, K. Temmen, in: M.E. Auer, T. Rüütmann (Eds.), Proceedings of the 27th International Conference on Interactive Collaborative Learning (ICL2024), Volume 4, Springer Nature Switzerland, Cham, 2025, pp. 84 – 91.","bibtex":"@inbook{Schäfers_Temmen_2025, place={Cham}, series={Lecture Notes in Networks and Systems}, title={The Influence of an Immersive-Collaborative Learning Unit on the Technology Acceptance of 5G and AR of Industrial Mechanic Students}, volume={1281}, DOI={10.1007/978-3-031-83520-9_8}, booktitle={Proceedings of the 27th International Conference on Interactive Collaborative Learning (ICL2024), Volume 4}, publisher={Springer Nature Switzerland}, author={Schäfers, Johannes and Temmen, Katrin}, editor={Auer, Michael E. and Rüütmann, Tiia}, year={2025}, pages={84 – 91}, collection={Lecture Notes in Networks and Systems} }","ama":"Schäfers J, Temmen K. The Influence of an Immersive-Collaborative Learning Unit on the Technology Acceptance of 5G and AR of Industrial Mechanic Students. In: Auer ME, Rüütmann T, eds. Proceedings of the 27th International Conference on Interactive Collaborative Learning (ICL2024), Volume 4. Vol 1281. Lecture Notes in Networks and Systems. Springer Nature Switzerland; 2025:84 – 91. doi:10.1007/978-3-031-83520-9_8","chicago":"Schäfers, Johannes, and Katrin Temmen. “The Influence of an Immersive-Collaborative Learning Unit on the Technology Acceptance of 5G and AR of Industrial Mechanic Students.” In Proceedings of the 27th International Conference on Interactive Collaborative Learning (ICL2024), Volume 4, edited by Michael E. Auer and Tiia Rüütmann, 1281:84 – 91. Lecture Notes in Networks and Systems. Cham: Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-83520-9_8.","ieee":"J. Schäfers and K. Temmen, “The Influence of an Immersive-Collaborative Learning Unit on the Technology Acceptance of 5G and AR of Industrial Mechanic Students,” in Proceedings of the 27th International Conference on Interactive Collaborative Learning (ICL2024), Volume 4, vol. 1281, M. E. Auer and T. Rüütmann, Eds. Cham: Springer Nature Switzerland, 2025, pp. 84 – 91."},"intvolume":" 1281","page":"84 – 91","place":"Cham","author":[{"first_name":"Johannes","last_name":"Schäfers","id":"68949","full_name":"Schäfers, Johannes"},{"last_name":"Temmen","full_name":"Temmen, Katrin","id":"30086","first_name":"Katrin"}],"volume":1281,"date_updated":"2026-03-17T13:49:57Z","main_file_link":[{"url":"https://link.springer.com/chapter/10.1007/978-3-031-83520-9_8"}],"conference":{"name":"International Conference on Interactive Collaborative Learning","start_date":"2024-09-24","end_date":"2024-09-27","location":"Tallinn"},"doi":"10.1007/978-3-031-83520-9_8","type":"book_chapter","status":"public","editor":[{"first_name":"Michael E.","last_name":"Auer","full_name":"Auer, Michael E."},{"first_name":"Tiia","full_name":"Rüütmann, Tiia","last_name":"Rüütmann"}],"series_title":"Lecture Notes in Networks and Systems","user_id":"68949","_id":"65032","year":"2025","date_created":"2026-03-17T13:39:04Z","publisher":"Springer Nature Switzerland","title":"The Influence of an Immersive-Collaborative Learning Unit on the Technology Acceptance of 5G and AR of Industrial Mechanic Students","publication":"Proceedings of the 27th International Conference on Interactive Collaborative Learning (ICL2024), Volume 4","abstract":[{"text":"Despite its status as a key enabling technology, the adoption of 5G in\r\nindustry remains limited, mainly due to a lack of expertise, which can be addressed\r\nby incorporating 5G training into vocational schools. Since Augmented Reality\r\n(AR) faces similar challenges, it is used as the 5G application. This research aims\r\nto determine the extent to which a learning unit using 5G and AR for collaborative\r\nwork can increase the intention to use these technologies in the vocational setting\r\nand gathers the factors that make up 5G acceptance. It is based on the Technology Acceptance Model 2 (TAM2). The sample includes 23 industrial mechanics\r\nstudents who participated in the developed learning unit. All items are scored on\r\nseven-tiered Likert scales (0 “totally disagree”; 6 “totally agree”).\r\nThe results showed a non-significant change in behavioural intention to use\r\n5G, with a mean of 4.95 (SD: 1.18) for the pre-test and 4.43 (SD: 1.68) for the posttest. The change in intention to use AR did not change significantly either, from\r\n3.12 (SD: 1.38) at pre-test to 3.37 (SD: 1.16) at post-test. The factors Perceived\r\nUsefulness, Image, and Relevance had the lowest mean scores, indicating areas for\r\ntargeted improvement. The significant change in Output Quality ratings is likely to\r\nreflect initial overestimation by students. The difference in Behavioural Intentions\r\nbetween 5G and AR suggests that AR may not be an effective technology for\r\nincreasing 5G adoption in educational contexts. One recommendation is to address\r\n5G in the learning unit not only indirectly.","lang":"eng"}],"language":[{"iso":"eng"}],"keyword":["5G","Key Technology","TAM · Augmented Reality","VET"]},{"title":"Bestimmung der Feststoffbettfestigkeit zur Vorhersage von Feststoffbettbrüchen im Einschneckenextruder","date_created":"2026-03-16T14:23:34Z","author":[{"last_name":"Knaup","id":"45124","full_name":"Knaup, Felix","first_name":"Felix"},{"first_name":"Florian","full_name":"Brüning, Florian","id":"72920","last_name":"Brüning"},{"last_name":"Schöppner","id":"20530","full_name":"Schöppner, Volker","first_name":"Volker"}],"date_updated":"2026-03-18T09:11:44Z","citation":{"chicago":"Knaup, Felix, Florian Brüning, and Volker Schöppner. “Bestimmung der Feststoffbettfestigkeit zur Vorhersage von Feststoffbettbrüchen im Einschneckenextruder.” In Technomer 2025 29. Fachtagung, 2025.","ieee":"F. Knaup, F. Brüning, and V. Schöppner, “Bestimmung der Feststoffbettfestigkeit zur Vorhersage von Feststoffbettbrüchen im Einschneckenextruder,” 2025.","ama":"Knaup F, Brüning F, Schöppner V. Bestimmung der Feststoffbettfestigkeit zur Vorhersage von Feststoffbettbrüchen im Einschneckenextruder. In: Technomer 2025 29. Fachtagung. ; 2025.","bibtex":"@inproceedings{Knaup_Brüning_Schöppner_2025, title={Bestimmung der Feststoffbettfestigkeit zur Vorhersage von Feststoffbettbrüchen im Einschneckenextruder}, booktitle={Technomer 2025 29. Fachtagung}, author={Knaup, Felix and Brüning, Florian and Schöppner, Volker}, year={2025} }","short":"F. Knaup, F. Brüning, V. Schöppner, in: Technomer 2025 29. Fachtagung, 2025.","mla":"Knaup, Felix, et al. “Bestimmung der Feststoffbettfestigkeit zur Vorhersage von Feststoffbettbrüchen im Einschneckenextruder.” Technomer 2025 29. Fachtagung, 2025.","apa":"Knaup, F., Brüning, F., & Schöppner, V. (2025). Bestimmung der Feststoffbettfestigkeit zur Vorhersage von Feststoffbettbrüchen im Einschneckenextruder. Technomer 2025 29. Fachtagung."},"year":"2025","publication_identifier":{"isbn":["978-3-939382-17-1"]},"language":[{"iso":"ger"}],"keyword":["Aufschmelzen","Aufschmelzmodellierung","Feststoffbett","melting modeling"],"department":[{"_id":"9"},{"_id":"321"},{"_id":"367"}],"user_id":"59363","_id":"65006","status":"public","publication":"Technomer 2025 29. Fachtagung","type":"conference"},{"citation":{"chicago":"Salm, Maximilian Karl Franz, and Elmar Moritzer. “Einfluss von FFF-Prozessparametern auf die elektrische Leitfähigkeit von leitfähigen TPE-Komposite.” In Technomer 2025 29. Fachtagung, 2025.","ieee":"M. K. F. Salm and E. Moritzer, “Einfluss von FFF-Prozessparametern auf die elektrische Leitfähigkeit von leitfähigen TPE-Komposite,” 2025.","ama":"Salm MKF, Moritzer E. Einfluss von FFF-Prozessparametern auf die elektrische Leitfähigkeit von leitfähigen TPE-Komposite. In: Technomer 2025 29. Fachtagung. ; 2025.","apa":"Salm, M. K. F., & Moritzer, E. (2025). Einfluss von FFF-Prozessparametern auf die elektrische Leitfähigkeit von leitfähigen TPE-Komposite. Technomer 2025 29. Fachtagung.","mla":"Salm, Maximilian Karl Franz, and Elmar Moritzer. “Einfluss von FFF-Prozessparametern auf die elektrische Leitfähigkeit von leitfähigen TPE-Komposite.” Technomer 2025 29. Fachtagung, 2025.","short":"M.K.F. Salm, E. Moritzer, in: Technomer 2025 29. Fachtagung, 2025.","bibtex":"@inproceedings{Salm_Moritzer_2025, title={Einfluss von FFF-Prozessparametern auf die elektrische Leitfähigkeit von leitfähigen TPE-Komposite}, booktitle={Technomer 2025 29. Fachtagung}, author={Salm, Maximilian Karl Franz and Moritzer, Elmar}, year={2025} }"},"year":"2025","publication_identifier":{"isbn":["978-3-939382-17-1"]},"title":"Einfluss von FFF-Prozessparametern auf die elektrische Leitfähigkeit von leitfähigen TPE-Komposite","author":[{"id":"57929","full_name":"Salm, Maximilian Karl Franz","last_name":"Salm","first_name":"Maximilian Karl Franz"},{"first_name":"Elmar","last_name":"Moritzer","full_name":"Moritzer, Elmar","id":"20531"}],"date_created":"2026-03-18T10:00:21Z","date_updated":"2026-03-18T10:02:01Z","status":"public","publication":"Technomer 2025 29. Fachtagung","type":"conference","language":[{"iso":"ger"}],"keyword":["Additive Fertigung","Elektrische Leitfähigkeit","Compounds","TPE","Fused Filament Fabrication"],"department":[{"_id":"9"},{"_id":"321"},{"_id":"367"}],"user_id":"59363","_id":"65048"},{"date_updated":"2026-03-18T10:01:05Z","_id":"65047","date_created":"2026-03-18T10:00:20Z","user_id":"59363","author":[{"first_name":"Jonas","id":"92911","full_name":"Beutelspacher, Jonas","last_name":"Beutelspacher"},{"last_name":"Scharwald","id":"68828","full_name":"Scharwald, David","first_name":"David"},{"first_name":"Elmar","full_name":"Moritzer, Elmar","id":"20531","last_name":"Moritzer"}],"department":[{"_id":"9"},{"_id":"321"},{"_id":"367"}],"title":"Einfluss der Schichtstruktur auf die Druckfestigkeit von FDM-Bauteilen – Ein konzeptioneller Ansatz","language":[{"iso":"ger"}],"publication_identifier":{"isbn":["978-3-939382-17-1"]},"type":"conference","publication":"Technomer 2025 29. Fachtagung","year":"2025","citation":{"chicago":"Beutelspacher, Jonas, David Scharwald, and Elmar Moritzer. “Einfluss der Schichtstruktur auf die Druckfestigkeit von FDM-Bauteilen – Ein konzeptioneller Ansatz.” In Technomer 2025 29. Fachtagung, 2025.","ieee":"J. Beutelspacher, D. Scharwald, and E. Moritzer, “Einfluss der Schichtstruktur auf die Druckfestigkeit von FDM-Bauteilen – Ein konzeptioneller Ansatz,” 2025.","short":"J. Beutelspacher, D. Scharwald, E. Moritzer, in: Technomer 2025 29. Fachtagung, 2025.","bibtex":"@inproceedings{Beutelspacher_Scharwald_Moritzer_2025, title={Einfluss der Schichtstruktur auf die Druckfestigkeit von FDM-Bauteilen – Ein konzeptioneller Ansatz}, booktitle={Technomer 2025 29. Fachtagung}, author={Beutelspacher, Jonas and Scharwald, David and Moritzer, Elmar}, year={2025} }","mla":"Beutelspacher, Jonas, et al. “Einfluss der Schichtstruktur auf die Druckfestigkeit von FDM-Bauteilen – Ein konzeptioneller Ansatz.” Technomer 2025 29. Fachtagung, 2025.","ama":"Beutelspacher J, Scharwald D, Moritzer E. Einfluss der Schichtstruktur auf die Druckfestigkeit von FDM-Bauteilen – Ein konzeptioneller Ansatz. In: Technomer 2025 29. Fachtagung. ; 2025.","apa":"Beutelspacher, J., Scharwald, D., & Moritzer, E. (2025). Einfluss der Schichtstruktur auf die Druckfestigkeit von FDM-Bauteilen – Ein konzeptioneller Ansatz. Technomer 2025 29. Fachtagung."},"status":"public"},{"issue":"76, H. 9/10","citation":{"apa":"Lobner, L., Meyer-Hamme, J., & Schönhärl, K. (2025). Drei Spielfilme über die Wannseekonferenz als Anlass historischen Lernens. Geschichte in Wissenschaft und Unterricht, 76, H. 9/10, 555–571.","ama":"Lobner L, Meyer-Hamme J, Schönhärl K. Drei Spielfilme über die Wannseekonferenz als Anlass historischen Lernens. Geschichte in Wissenschaft und Unterricht. 2025;(76, H. 9/10):555-571.","bibtex":"@article{Lobner_Meyer-Hamme_Schönhärl_2025, title={Drei Spielfilme über die Wannseekonferenz als Anlass historischen Lernens}, number={76, H. 9/10}, journal={Geschichte in Wissenschaft und Unterricht}, author={Lobner, Laura and Meyer-Hamme, Johannes and Schönhärl, Korinna}, year={2025}, pages={555–571} }","mla":"Lobner, Laura, et al. “Drei Spielfilme über die Wannseekonferenz als Anlass historischen Lernens.” Geschichte in Wissenschaft und Unterricht, no. 76, H. 9/10, 2025, pp. 555–71.","short":"L. Lobner, J. Meyer-Hamme, K. Schönhärl, Geschichte in Wissenschaft und Unterricht (2025) 555–571.","chicago":"Lobner, Laura, Johannes Meyer-Hamme, and Korinna Schönhärl. “Drei Spielfilme über die Wannseekonferenz als Anlass historischen Lernens.” Geschichte in Wissenschaft und Unterricht, no. 76, H. 9/10 (2025): 555–71.","ieee":"L. Lobner, J. Meyer-Hamme, and K. Schönhärl, “Drei Spielfilme über die Wannseekonferenz als Anlass historischen Lernens,” Geschichte in Wissenschaft und Unterricht, no. 76, H. 9/10, pp. 555–571, 2025."},"page":"555-571","year":"2025","date_created":"2026-03-18T14:34:51Z","author":[{"full_name":"Lobner, Laura","last_name":"Lobner","first_name":"Laura"},{"full_name":"Meyer-Hamme, Johannes","id":"49623","last_name":"Meyer-Hamme","first_name":"Johannes"},{"first_name":"Korinna","orcid":"0000-0002-7967-3261","last_name":"Schönhärl","full_name":"Schönhärl, Korinna","id":"89037"}],"date_updated":"2026-03-18T14:37:49Z","title":"Drei Spielfilme über die Wannseekonferenz als Anlass historischen Lernens","type":"journal_article","publication":"Geschichte in Wissenschaft und Unterricht","status":"public","user_id":"69283","department":[{"_id":"444"}],"_id":"65057","language":[{"iso":"ger"}]},{"publication_identifier":{"isbn":["978-3-96780-214-6"]},"citation":{"short":"T. Tröster, T. Marten, S. Luig, Methodische Auswahl hochfester Mehrphasenstähle bezüglich ihrer lokalen und globalen Duktilität, Forschungsvereinigung Stahlanwendung e.V. (FOSTA), Düsseldorf, 2025.","bibtex":"@book{Tröster_Marten_Luig_2025, place={Düsseldorf}, series={Salomon, R. (Hrsg.): Forschung für die Praxis / Forschungsvereinigung Stahlanwendung e.V}, title={Methodische Auswahl hochfester Mehrphasenstähle bezüglich ihrer lokalen und globalen Duktilität}, volume={P 1447}, publisher={Forschungsvereinigung Stahlanwendung e.V. (FOSTA)}, author={Tröster, Thomas and Marten, Thorsten and Luig, Simon}, year={2025}, collection={Salomon, R. (Hrsg.): Forschung für die Praxis / Forschungsvereinigung Stahlanwendung e.V} }","mla":"Tröster, Thomas, et al. Methodische Auswahl hochfester Mehrphasenstähle bezüglich ihrer lokalen und globalen Duktilität. Forschungsvereinigung Stahlanwendung e.V. (FOSTA), 2025.","apa":"Tröster, T., Marten, T., & Luig, S. (2025). Methodische Auswahl hochfester Mehrphasenstähle bezüglich ihrer lokalen und globalen Duktilität: Vol. P 1447. Forschungsvereinigung Stahlanwendung e.V. (FOSTA).","chicago":"Tröster, Thomas, Thorsten Marten, and Simon Luig. Methodische Auswahl hochfester Mehrphasenstähle bezüglich ihrer lokalen und globalen Duktilität. Vol. P 1447. Salomon, R. (Hrsg.): Forschung für die Praxis / Forschungsvereinigung Stahlanwendung e.V. Düsseldorf: Forschungsvereinigung Stahlanwendung e.V. (FOSTA), 2025.","ieee":"T. Tröster, T. Marten, and S. Luig, Methodische Auswahl hochfester Mehrphasenstähle bezüglich ihrer lokalen und globalen Duktilität, vol. P 1447. Düsseldorf: Forschungsvereinigung Stahlanwendung e.V. (FOSTA), 2025.","ama":"Tröster T, Marten T, Luig S. Methodische Auswahl hochfester Mehrphasenstähle bezüglich ihrer lokalen und globalen Duktilität. Vol P 1447. Forschungsvereinigung Stahlanwendung e.V. (FOSTA); 2025."},"year":"2025","place":"Düsseldorf","date_created":"2026-03-19T11:37:39Z","author":[{"last_name":"Tröster","id":"553","full_name":"Tröster, Thomas","first_name":"Thomas"},{"first_name":"Thorsten","id":"338","full_name":"Marten, Thorsten","orcid":"0009-0001-6433-7839","last_name":"Marten"},{"first_name":"Simon","id":"71335","full_name":"Luig, Simon","last_name":"Luig"}],"volume":"P 1447","date_updated":"2026-03-19T12:05:17Z","publisher":"Forschungsvereinigung Stahlanwendung e.V. (FOSTA)","title":"Methodische Auswahl hochfester Mehrphasenstähle bezüglich ihrer lokalen und globalen Duktilität","type":"book","status":"public","user_id":"71335","series_title":"Salomon, R. (Hrsg.): Forschung für die Praxis / Forschungsvereinigung Stahlanwendung e.V","department":[{"_id":"9"},{"_id":"321"},{"_id":"149"}],"project":[{"name":"Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"_id":"65062","alternative_title":["Schlussbericht vom 30.09.2024 zu IGF Vorhaben Nr. 21928N (Berichtszeitraum: 01.11.2021 bis 30.04.2024) "],"language":[{"iso":"ger"}]},{"_id":"65079","user_id":"57447","file_date_updated":"2026-03-21T16:53:11Z","type":"book_chapter","status":"public","oa":"1","date_updated":"2026-03-21T17:01:31Z","author":[{"full_name":"Albus, Vanessa","last_name":"Albus","first_name":"Vanessa"}],"doi":"http://educacionypensamiento.colegiohispano.edu.co/index.php/revistaeyp/oai https://educacionypensamiento.colegiohispano.edu.co/index.php/revistaeyp/article/view/186/170","has_accepted_license":"1","publication_status":"published","place":"Santiago de Cali - Valle del Cauca - Colombia","page":"50-59","citation":{"ama":"Albus V. El Canon Filosófico y los Autores Clásicos. In: Revista de Educación & Pensamiento. Nr. 32. Colegiohispanoamericano; 2025:50-59. doi:http://educacionypensamiento.colegiohispano.edu.co/index.php/revistaeyp/oai    https://educacionypensamiento.colegiohispano.edu.co/index.php/revistaeyp/article/view/186/170","apa":"Albus, V. (2025). El Canon Filosófico y los Autores Clásicos. In Revista de Educación & Pensamiento. Nr. 32 (pp. 50–59). Colegiohispanoamericano. http://educacionypensamiento.colegiohispano.edu.co/index.php/revistaeyp/oai    https://educacionypensamiento.colegiohispano.edu.co/index.php/revistaeyp/article/view/186/170","bibtex":"@inbook{Albus_2025, place={Santiago de Cali - Valle del Cauca - Colombia}, title={El Canon Filosófico y los Autores Clásicos}, DOI={http://educacionypensamiento.colegiohispano.edu.co/index.php/revistaeyp/oai    https://educacionypensamiento.colegiohispano.edu.co/index.php/revistaeyp/article/view/186/170}, booktitle={Revista de Educación & Pensamiento. Nr. 32}, publisher={Colegiohispanoamericano}, author={Albus, Vanessa}, year={2025}, pages={50–59} }","short":"V. Albus, in: Revista de Educación & Pensamiento. Nr. 32, Colegiohispanoamericano, Santiago de Cali - Valle del Cauca - Colombia, 2025, pp. 50–59.","mla":"Albus, Vanessa. “El Canon Filosófico y los Autores Clásicos.” Revista de Educación & Pensamiento. Nr. 32, Colegiohispanoamericano, 2025, pp. 50–59, doi:http://educacionypensamiento.colegiohispano.edu.co/index.php/revistaeyp/oai    https://educacionypensamiento.colegiohispano.edu.co/index.php/revistaeyp/article/view/186/170.","chicago":"Albus, Vanessa. “El Canon Filosófico y los Autores Clásicos.” In Revista de Educación & Pensamiento. Nr. 32, 50–59. Santiago de Cali - Valle del Cauca - Colombia: Colegiohispanoamericano, 2025. http://educacionypensamiento.colegiohispano.edu.co/index.php/revistaeyp/oai    https://educacionypensamiento.colegiohispano.edu.co/index.php/revistaeyp/article/view/186/170.","ieee":"V. Albus, “El Canon Filosófico y los Autores Clásicos,” in Revista de Educación & Pensamiento. Nr. 32, Santiago de Cali - Valle del Cauca - Colombia: Colegiohispanoamericano, 2025, pp. 50–59."},"ddc":["100"],"language":[{"iso":"spa"}],"publication":"Revista de Educación & Pensamiento. Nr. 32","abstract":[{"text":"(peer-review)\r\n\r\nfirst published as: „Kanon und Klassiker“, in: Handbuch Philosophie und Ethik, Bd. 1 Didaktik und Methodik, hrsg. von Julian Nida-Rümelin, Irina Spiegel, Markus Tiedemann, Paderborn, 2015, S. 252-260.\r\n\r\ntranslated by Fredy Hernán Prieto Galindo","lang":"eng"}],"file":[{"access_level":"open_access","file_id":"65080","title":"El Canon Filosófico y los Autores Clásicos","description":"„Kanon und Klassiker“, in: Handbuch Philosophie und Ethik, Bd. 1 Didaktik und Methodik, hrsg. von Julian Nida-Rümelin, Irina Spiegel, Markus Tiedemann, Paderborn, 2015, S. 252-260.\nÜbersetzung ins Spanische von Fredy Hernán Prieto Galindo: “El Canon Filosófico y los Autores Clásicos”, in: Revista de Educación & Pensamiento. Nr. 32, 2025, S. 50-59. (peer-review)","date_created":"2026-03-21T16:53:11Z","date_updated":"2026-03-21T16:53:11Z","relation":"main_file","file_name":"ElCanonFilosoficoYLosAutoresClasicos-10497972.pdf","file_size":313963,"creator":"nilsz","content_type":"application/pdf"}],"publisher":"Colegiohispanoamericano","date_created":"2026-03-21T16:55:44Z","title":"El Canon Filosófico y los Autores Clásicos","year":"2025"},{"_id":"62981","department":[{"_id":"27"},{"_id":"518"}],"user_id":"23522","series_title":"PC2 Tech­nic­al Re­port Series","file_date_updated":"2026-03-25T11:50:30Z","type":"report","status":"public","oa":"1","date_updated":"2026-03-25T11:50:31Z","volume":1,"author":[{"id":"116116","full_name":"Ehtesabi, Sadaf","last_name":"Ehtesabi","first_name":"Sadaf"},{"last_name":"Hossain","orcid":"https://orcid.org/0000-0002-0737-7981","id":"114619","full_name":"Hossain, Manoar","first_name":"Manoar"},{"id":"3145","full_name":"Kenter, Tobias","last_name":"Kenter","first_name":"Tobias"},{"first_name":"Andreas","id":"15275","full_name":"Krawinkel, Andreas","last_name":"Krawinkel"},{"first_name":"Lukas","last_name":"Ostermann","full_name":"Ostermann, Lukas","id":"69976"},{"first_name":"Christian","last_name":"Plessl","orcid":"0000-0001-5728-9982","full_name":"Plessl, Christian","id":"16153"},{"last_name":"Riebler","full_name":"Riebler, Heinrich","id":"8961","first_name":"Heinrich"},{"first_name":"Stefan","id":"34009","full_name":"Rohde, Stefan","last_name":"Rohde"},{"orcid":"0000-0002-6268-5397","last_name":"Schade","full_name":"Schade, Robert","id":"75963","first_name":"Robert"},{"last_name":"Schwarz","id":"5312","full_name":"Schwarz, Michael","first_name":"Michael"},{"first_name":"Jens","last_name":"Simon","full_name":"Simon, Jens","id":"15273"},{"id":"61189","full_name":"Winnwa, Nils","last_name":"Winnwa","first_name":"Nils"},{"first_name":"Alex","full_name":"Wiens, Alex","id":"23522","last_name":"Wiens","orcid":"0000-0003-1764-9773"},{"last_name":"Wu","id":"77439","full_name":"Wu, Xin","first_name":"Xin"}],"doi":"10.48550/ARXIV.2512.07401","has_accepted_license":"1","publication_status":"published","place":"Paderborn","intvolume":" 1","page":"33","citation":{"apa":"Ehtesabi, S., Hossain, M., Kenter, T., Krawinkel, A., Ostermann, L., Plessl, C., Riebler, H., Rohde, S., Schade, R., Schwarz, M., Simon, J., Winnwa, N., Wiens, A., & Wu, X. (2025). Otus Supercomputer (Vol. 1). Paderborn Center for Parallel Computing (PC2). https://doi.org/10.48550/ARXIV.2512.07401","short":"S. Ehtesabi, M. Hossain, T. Kenter, A. Krawinkel, L. Ostermann, C. Plessl, H. Riebler, S. Rohde, R. Schade, M. Schwarz, J. Simon, N. Winnwa, A. Wiens, X. Wu, Otus Supercomputer, Paderborn Center for Parallel Computing (PC2), Paderborn, 2025.","mla":"Ehtesabi, Sadaf, et al. Otus Supercomputer. Paderborn Center for Parallel Computing (PC2), 2025, doi:10.48550/ARXIV.2512.07401.","bibtex":"@book{Ehtesabi_Hossain_Kenter_Krawinkel_Ostermann_Plessl_Riebler_Rohde_Schade_Schwarz_et al._2025, place={Paderborn}, series={PC2 Tech­nic­al Re­port Series}, title={Otus Supercomputer}, volume={1}, DOI={10.48550/ARXIV.2512.07401}, publisher={Paderborn Center for Parallel Computing (PC2)}, author={Ehtesabi, Sadaf and Hossain, Manoar and Kenter, Tobias and Krawinkel, Andreas and Ostermann, Lukas and Plessl, Christian and Riebler, Heinrich and Rohde, Stefan and Schade, Robert and Schwarz, Michael and et al.}, year={2025}, collection={PC2 Tech­nic­al Re­port Series} }","chicago":"Ehtesabi, Sadaf, Manoar Hossain, Tobias Kenter, Andreas Krawinkel, Lukas Ostermann, Christian Plessl, Heinrich Riebler, et al. Otus Supercomputer. Vol. 1. PC2 Tech­nic­al Re­port Series. Paderborn: Paderborn Center for Parallel Computing (PC2), 2025. https://doi.org/10.48550/ARXIV.2512.07401.","ieee":"S. Ehtesabi et al., Otus Supercomputer, vol. 1. Paderborn: Paderborn Center for Parallel Computing (PC2), 2025.","ama":"Ehtesabi S, Hossain M, Kenter T, et al. Otus Supercomputer. Vol 1. Paderborn Center for Parallel Computing (PC2); 2025. doi:10.48550/ARXIV.2512.07401"},"keyword":["Otus","Supercomputer","FPGA","PC2","Paderborn Center for Parallel Computing","Noctua 2","HPC"],"ddc":["004"],"language":[{"iso":"eng"}],"report_number":"PC2TR-2025-1","abstract":[{"text":"Otus is a high-performance computing cluster that was launched in 2025 and is operated by the Paderborn Center for Parallel Computing (PC2) at Paderborn University in Germany. The system is part of the National High Performance Computing (NHR) initiative. Otus complements the previous supercomputer Noctua 2, offering approximately twice the computing power while retaining the three node types that were characteristic of Noctua 2: 1) CPU compute nodes with different memory capacities, 2) high-end GPU nodes, and 3) HPC-grade FPGA nodes. On the Top500 list, which ranks the 500 most powerful supercomputers in the world, Otus is in position 164 with the CPU partition and in position 255 with the GPU partition (June 2025). On the Green500 list, ranking the 500 most energy-efficient supercomputers in the world, Otus is in position 5 with the GPU partition (June 2025).\r\n\r\n\r\nThis article provides a comprehensive overview of the system in terms of its hardware, software, system integration, and its overall integration into the data center building to ensure energy-efficient operation. The article aims to provide unique insights for scientists using the system and for other centers operating HPC clusters. The article will be continuously updated to reflect the latest system setup and measurements. ","lang":"eng"}],"file":[{"content_type":"application/pdf","relation":"main_file","creator":"deffel","date_created":"2025-12-09T09:19:12Z","date_updated":"2026-03-25T11:50:30Z","file_name":"2512.07401v1.pdf","file_id":"62982","access_level":"open_access","file_size":4535595}],"publisher":"Paderborn Center for Parallel Computing (PC2)","date_created":"2025-12-09T09:11:04Z","title":"Otus Supercomputer","year":"2025"},{"oa":"1","publisher":"HNI Verlagsschriftenreihe","date_updated":"2026-04-01T06:14:00Z","author":[{"first_name":"Julia","full_name":"Timmermann, Julia","id":"15402","last_name":"Timmermann"},{"full_name":"Götte, Ricarda-Samantha","id":"43992","last_name":"Götte","first_name":"Ricarda-Samantha"},{"full_name":"Junker, Annika","id":"41470","last_name":"Junker","orcid":"0009-0002-6475-2503","first_name":"Annika"},{"last_name":"Hesse","id":"29222","full_name":"Hesse, Michael","first_name":"Michael"},{"full_name":"Schwarzer, Luis","last_name":"Schwarzer","first_name":"Luis"}],"date_created":"2025-09-03T09:35:35Z","volume":"Band 430","title":"DART - Datengetriebene Methoden in der Regelungstechnik","main_file_link":[{"open_access":"1","url":"https://digital.ub.uni-paderborn.de/doi/10.17619/UNIPB/1-2305"}],"doi":"10.17619/UNIPB/1-2305","publication_status":"published","edition":"1. Auflage","year":"2025","place":"Paderborn","citation":{"chicago":"Timmermann, Julia, Ricarda-Samantha Götte, Annika Junker, Michael Hesse, and Luis Schwarzer. DART - Datengetriebene Methoden in der Regelungstechnik. 1. Auflage. Vol. Band 430. Paderborn: HNI Verlagsschriftenreihe, 2025. https://doi.org/10.17619/UNIPB/1-2305.","ieee":"J. Timmermann, R.-S. Götte, A. Junker, M. Hesse, and L. Schwarzer, DART - Datengetriebene Methoden in der Regelungstechnik, 1. Auflage., vol. Band 430. Paderborn: HNI Verlagsschriftenreihe, 2025.","mla":"Timmermann, Julia, et al. DART - Datengetriebene Methoden in der Regelungstechnik. 1. Auflage, vol. Band 430, HNI Verlagsschriftenreihe, 2025, doi:10.17619/UNIPB/1-2305.","short":"J. Timmermann, R.-S. Götte, A. Junker, M. Hesse, L. Schwarzer, DART - Datengetriebene Methoden in der Regelungstechnik, 1. Auflage, HNI Verlagsschriftenreihe, Paderborn, 2025.","bibtex":"@book{Timmermann_Götte_Junker_Hesse_Schwarzer_2025, place={Paderborn}, edition={1. Auflage}, title={DART - Datengetriebene Methoden in der Regelungstechnik}, volume={Band 430}, DOI={10.17619/UNIPB/1-2305}, publisher={HNI Verlagsschriftenreihe}, author={Timmermann, Julia and Götte, Ricarda-Samantha and Junker, Annika and Hesse, Michael and Schwarzer, Luis}, year={2025} }","apa":"Timmermann, J., Götte, R.-S., Junker, A., Hesse, M., & Schwarzer, L. (2025). DART - Datengetriebene Methoden in der Regelungstechnik: Vol. Band 430 (1. Auflage). HNI Verlagsschriftenreihe. https://doi.org/10.17619/UNIPB/1-2305","ama":"Timmermann J, Götte R-S, Junker A, Hesse M, Schwarzer L. DART - Datengetriebene Methoden in der Regelungstechnik. Vol Band 430. 1. Auflage. HNI Verlagsschriftenreihe; 2025. doi:10.17619/UNIPB/1-2305"},"_id":"61118","user_id":"41470","department":[{"_id":"880"},{"_id":"153"}],"language":[{"iso":"ger"}],"type":"book","abstract":[{"text":"Im Zuge der Digitalisierung erfahren maschinelles Lernen und datengetriebene Methoden derzeit eine große Aufmerksamkeit in Wissenschaft und Industrie. Es fehlt jedoch an Grundlagenwissen und Verständnis, wie die datengetriebenen Methoden der Informatik mit bewährten modellbasierten Ingenieursmethoden wie dem modellbasierten Entwurf in der Mechatronik und Methoden der Regelungstechnik sinnvoll kombiniert werden können, um hybride Modelle zu erhalten. Diese ingenieurwissenschaftlichen Methoden basieren auf physikalischen Verhaltensmodellen, die eine besonders verdichtete und interpretierbare Darstellung von Wissen darstellen und insbesondere kausale Zusammenhänge beschreiben. Für spezifische regelungstechnische Anwendungen gibt es umfangreiches Vorwissen in Form von bekannten Strukturen und Informationen, wie z.B. (Teil-)Modelle oder Parametersätze, die auch bei der Anwendung von Methoden wie dem maschinellen Lernen genutzt werden sollten. Eine solche sinnvolle systematische Verknüpfung ist wissenschaftlich, insbesondere im Hinblick auf die industrielle Anwendung, noch nicht ausreichend untersucht worden und sehr vielversprechend. In diesem Beitrag werden die Ergebnisse der Nachwuchsforschungsgruppe DART – Datengetriebene Methoden in der Regelungstechnik vorgestellt. Das Hauptziel war es, die synergetische Kombination von modell- und datengetriebenen Methoden für regelungstechnische Aufgaben zu erforschen und es werden alle wichtigen Forschungsergebnisse aber auch die verwendeten Grundprinzipien des maschinellen Lernens in diesem Beitrag dargestellt.","lang":"eng"},{"text":"In the course of digitalization, machine learning and data-driven methods are currently receiving a great deal of attention in science and industry. However, there is a lack of basic knowledge and understanding of how data-driven methods in computer science can be meaningfully combined with proven model-based engineering methods such as model-based design in mechatronics and control engineering methods to obtain hybrid models. These engineering methods are based on physical models, which represent a particularly condensed and interpretable representation of knowledge and, in particular, describe causal relationships. For specific control engineering applications, there is extensive prior knowledge in the form of known structures and information, such as (partial) models or parameter sets, which should also be used when applying methods such as machine learning. Such a meaningful systematic connection has not yet been sufficiently investigated scientifically, especially with regard to industrial applications, and is very promising. This contribution presents the results of the DART junior research group – Data-driven methods in control engineering. The main objective was to investigate the synergistic combination of model- and data-driven methods for control engineering tasks, and all important research results as well as the basic principles of machine learning used are presented in this publication.","lang":"eng"}],"status":"public"},{"abstract":[{"text":"Reputation systems to rate companies’ performances remain largely unexplored inresearch and are scarcely used in business-to-business (B2B) practice. Such systemsare essential for businesses seeking trustworthy partners, as they help reduce infor-mation asymmetry, lower buyers’ transaction risks, and allow high-quality serviceproviders to justify premium pricing. Unlike traditional review-based systems in thebusiness-to-consumer (B2C) context, we propose a B2B reputation mechanism inwhich buyers commit to a rating payment before a transaction. Once the buyer final-izes the rating, this payment is executed and recorded on a blockchain as an immu-table, secure ledger. Our system mimics natural trust-building mechanisms with rat-ings that are (1) monetary-based, (2) stake-based, (3) non-aggregated, (4) involvecounter-ratings, (5) selectively sellable, (6) individually comparable, (7) stored ona blockchain, (8) and monitored by a third instance. This system provides a novelapproach to fostering trust in B2B transactions by reducing information asymme-try and transaction risk. We illustrate the mechanism’s application in the consultingsector. Our analysis has identified 23 institutional trust and distrust dimensions thatpromote establishing institutional trust through the proposed mechanism. Qualita-tive interviews suggest that, while complex and challenging to apply, this mecha-nism can foster trust in B2B transactions. Given the low maturity in the applicationdomain—rating professional business services with business reputation systems—and solution domain—using monetary stakes for ratings, this system stands as apotential invention.","lang":"eng"}],"file":[{"access_level":"closed","file_name":"Hemmrich_et_al-2025-Information_Systems_and_e-Business_Management.pdf","file_id":"60051","file_size":1440251,"date_created":"2025-05-28T08:05:18Z","creator":"hemmrich","date_updated":"2025-05-28T08:05:18Z","relation":"main_file","success":1,"content_type":"application/pdf"}],"publication":"Information Systems and e-Business Management","ddc":["000"],"keyword":["Information asymmetry","Trust","Reputation system","Monetary rating","Blockchain","Consulting"],"language":[{"iso":"eng"}],"external_id":{"unknown":["https://doi.org/10.1007/s10257-025-00702-9"]},"year":"2025","quality_controlled":"1","issue":"1","title":"Blockchain‑based reputation systemsfor business‑to‑business services: designing a reputation mechanism to reduce information asymmetry in professional consulting","publisher":"Springer","date_created":"2025-05-28T08:12:28Z","status":"public","type":"journal_article","article_type":"original","file_date_updated":"2025-05-28T08:05:18Z","_id":"60050","user_id":"83557","department":[{"_id":"195"}],"jel":["D81","D82","L86","L10","M30"],"citation":{"apa":"Hemmrich, S., Nissen, V., Beverungen, D., & Pauls, J. D. M. (2025). Blockchain‑based reputation systemsfor business‑to‑business services: designing a reputation mechanism to reduce information asymmetry in professional consulting. Information Systems and E-Business Management, 23(1). https://doi.org/10.1007/s10257-025-00702-9","bibtex":"@article{Hemmrich_Nissen_Beverungen_Pauls_2025, title={Blockchain‑based reputation systemsfor business‑to‑business services: designing a reputation mechanism to reduce information asymmetry in professional consulting}, volume={23}, DOI={https://doi.org/10.1007/s10257-025-00702-9}, number={1}, journal={Information Systems and e-Business Management}, publisher={Springer}, author={Hemmrich, Simon and Nissen, Volker and Beverungen, Daniel and Pauls, Josias Daniel Miño}, year={2025} }","short":"S. Hemmrich, V. Nissen, D. Beverungen, J.D.M. Pauls, Information Systems and E-Business Management 23 (2025).","mla":"Hemmrich, Simon, et al. “Blockchain‑based Reputation Systemsfor Business‑to‑business Services: Designing a Reputation Mechanism to Reduce Information Asymmetry in Professional Consulting.” Information Systems and E-Business Management, vol. 23, no. 1, Springer, 2025, doi:https://doi.org/10.1007/s10257-025-00702-9.","ieee":"S. Hemmrich, V. Nissen, D. Beverungen, and J. D. M. Pauls, “Blockchain‑based reputation systemsfor business‑to‑business services: designing a reputation mechanism to reduce information asymmetry in professional consulting,” Information Systems and e-Business Management, vol. 23, no. 1, 2025, doi: https://doi.org/10.1007/s10257-025-00702-9.","chicago":"Hemmrich, Simon, Volker Nissen, Daniel Beverungen, and Josias Daniel Miño Pauls. “Blockchain‑based Reputation Systemsfor Business‑to‑business Services: Designing a Reputation Mechanism to Reduce Information Asymmetry in Professional Consulting.” Information Systems and E-Business Management 23, no. 1 (2025). https://doi.org/10.1007/s10257-025-00702-9.","ama":"Hemmrich S, Nissen V, Beverungen D, Pauls JDM. Blockchain‑based reputation systemsfor business‑to‑business services: designing a reputation mechanism to reduce information asymmetry in professional consulting. Information Systems and e-Business Management. 2025;23(1). doi:https://doi.org/10.1007/s10257-025-00702-9"},"intvolume":" 23","publication_status":"published","has_accepted_license":"1","main_file_link":[{"open_access":"1","url":"https://link.springer.com/epdf/10.1007/s10257-025-00702-9?sharing_token=fOiWqZx_ScKFAKjxu5UqWPe4RwlQNchNByi7wbcMAY6mjxpZFPB3OtpVT0rAZf9eEBt3_qXIVcZ67l3R9JVYasmuCsIimzE-xfP0N5Rimun248j0jFOnL1eBu4rypKSDFnbmR3kJ5xx-HLnCXvPvQPwpm09qOkS9GSNsiG-du60%3D"}],"doi":"https://doi.org/10.1007/s10257-025-00702-9","date_updated":"2026-04-02T04:32:13Z","oa":"1","author":[{"first_name":"Simon","last_name":"Hemmrich","id":"83557","full_name":"Hemmrich, Simon"},{"full_name":"Nissen, Volker","last_name":"Nissen","first_name":"Volker"},{"first_name":"Daniel","last_name":"Beverungen","full_name":"Beverungen, Daniel","id":"59677"},{"first_name":"Josias Daniel Miño","full_name":"Pauls, Josias Daniel Miño","last_name":"Pauls"}],"volume":23},{"_id":"65309","user_id":"83557","department":[{"_id":"195"}],"keyword":["Reputation Systems","Rating systems","monetary ratings","incentive mechanism","systems theory","Market coordination","advanced review system"],"language":[{"iso":"eng"}],"type":"dissertation","status":"public","date_updated":"2026-04-02T04:31:57Z","publisher":"Universität Paderborn","supervisor":[{"first_name":"Daniel","full_name":"Beverungen, Daniel","last_name":"Beverungen"},{"first_name":"Dennis","last_name":"Kundisch","full_name":"Kundisch, Dennis"}],"date_created":"2026-04-02T03:52:09Z","author":[{"first_name":"Simon","full_name":"Hemmrich, Simon","id":"83557","last_name":"Hemmrich"}],"title":"A Design Theory for Blockchain-Based Reputation Systems : Trust and Coordination in B2B Markets","doi":"https://doi.org/10.17619/UNIPB/1-2414","publication_status":"published","year":"2025","place":"Paderborn","citation":{"short":"S. Hemmrich, A Design Theory for Blockchain-Based Reputation Systems : Trust and Coordination in B2B Markets, Universität Paderborn, Paderborn, 2025.","bibtex":"@book{Hemmrich_2025, place={Paderborn}, title={A Design Theory for Blockchain-Based Reputation Systems : Trust and Coordination in B2B Markets}, DOI={https://doi.org/10.17619/UNIPB/1-2414}, publisher={Universität Paderborn}, author={Hemmrich, Simon}, year={2025} }","mla":"Hemmrich, Simon. A Design Theory for Blockchain-Based Reputation Systems : Trust and Coordination in B2B Markets. Universität Paderborn, 2025, doi:https://doi.org/10.17619/UNIPB/1-2414.","apa":"Hemmrich, S. (2025). A Design Theory for Blockchain-Based Reputation Systems : Trust and Coordination in B2B Markets. Universität Paderborn. https://doi.org/10.17619/UNIPB/1-2414","ama":"Hemmrich S. A Design Theory for Blockchain-Based Reputation Systems : Trust and Coordination in B2B Markets. Universität Paderborn; 2025. doi:https://doi.org/10.17619/UNIPB/1-2414","ieee":"S. Hemmrich, A Design Theory for Blockchain-Based Reputation Systems : Trust and Coordination in B2B Markets. Paderborn: Universität Paderborn, 2025.","chicago":"Hemmrich, Simon. A Design Theory for Blockchain-Based Reputation Systems : Trust and Coordination in B2B Markets. Paderborn: Universität Paderborn, 2025. https://doi.org/10.17619/UNIPB/1-2414."},"jel":["D8"],"page":"347"},{"author":[{"first_name":"Peter","last_name":"Bornmann","full_name":"Bornmann, Peter"},{"last_name":"Littmann","full_name":"Littmann, Walter","first_name":"Walter"},{"id":"38259","full_name":"Scheidemann, Claus","last_name":"Scheidemann","first_name":"Claus"},{"first_name":"Tobias","last_name":"Hemsel","id":"210","full_name":"Hemsel, Tobias"}],"date_created":"2026-03-02T11:35:33Z","date_updated":"2026-04-02T12:47:18Z","conference":{"location":"Paderborn, Germany","end_date":"2025-09-25","start_date":"2025-09-21","name":"International Congress on Ultrasonics (ICU)"},"title":"Innovative lead-free ultrasonic bending transducers for low to medium power applications","has_accepted_license":"1","citation":{"apa":"Bornmann, P., Littmann, W., Scheidemann, C., & Hemsel, T. (2025). Innovative lead-free ultrasonic bending transducers for low to medium power applications. International Congress on Ultrasonics (ICU), Paderborn, Germany.","bibtex":"@inproceedings{Bornmann_Littmann_Scheidemann_Hemsel_2025, title={Innovative lead-free ultrasonic bending transducers for low to medium power applications}, author={Bornmann, Peter and Littmann, Walter and Scheidemann, Claus and Hemsel, Tobias}, year={2025} }","short":"P. Bornmann, W. Littmann, C. Scheidemann, T. Hemsel, in: 2025.","mla":"Bornmann, Peter, et al. Innovative Lead-Free Ultrasonic Bending Transducers for Low to Medium Power Applications. 2025.","ieee":"P. Bornmann, W. Littmann, C. Scheidemann, and T. Hemsel, “Innovative lead-free ultrasonic bending transducers for low to medium power applications,” presented at the International Congress on Ultrasonics (ICU), Paderborn, Germany, 2025.","chicago":"Bornmann, Peter, Walter Littmann, Claus Scheidemann, and Tobias Hemsel. “Innovative Lead-Free Ultrasonic Bending Transducers for Low to Medium Power Applications,” 2025.","ama":"Bornmann P, Littmann W, Scheidemann C, Hemsel T. Innovative lead-free ultrasonic bending transducers for low to medium power applications. In: ; 2025."},"year":"2025","user_id":"210","department":[{"_id":"151"}],"_id":"64803","language":[{"iso":"eng"}],"file_date_updated":"2026-04-02T12:46:09Z","ddc":["620"],"type":"conference","file":[{"relation":"main_file","success":1,"content_type":"application/pdf","file_id":"65354","file_name":"ICU_2025_Bornmann.pdf","access_level":"closed","file_size":1878995,"creator":"hemsel","date_created":"2026-04-02T12:46:09Z","date_updated":"2026-04-02T12:46:09Z"}],"status":"public","abstract":[{"lang":"eng","text":"Nowadays ultrasound technology is established in various fields of application like industrial production or medical technology. Besides high power ultrasound applications like ultrasonic cleaning and ultrasonic welding, which are often not strongly restricted regarding their weight, costs, and construction space, there are many applications in the low to medium power range like handheld surgical instruments, medical inhalers, or ultrasonic cutters. For the latter there is often a strong demand for low weight and construction space and low costs to be competitive in mass production. Another challenge that arises from the RoHS-directive [1] is, that new ultrasonic devices should avoid the use of lead-containing PZT-materials. Against this background there is a demand for lead-free, small and lightweight and cost-effective ultrasonic transducers.\r\nIn many of the above-mentioned applications, pre-stressed Bolted-Langevine-Transducers (BLT) based on lead-containing PZT-materials are established to generate ultrasonic vibrations. These are quite advantageous in many ways and can be built tailored to each application and even for high power of thousands of watts. But due to the required steps during their manufacturing process (machining parts, assembly, pre-stressing, frequency tuning, …), these transducers remain expensive. Furthermore, due to the operation in resonance, the construction space of these transducers is linked to their wavelength and cannot be reduced remarkably.\r\nFor these reasons, our aim is to present an innovative lead-free ultrasonic transducer for low to medium power applications, that is based on bending vibrations instead of longitudinal vibrations. This design enables to build very small transducers. Furthermore, due to their simple construction, these transducers can be built at low manufacturing costs and are well suited for industrial mass production. The use of lead-free piezoelectric materials makes this transducer design ready for future applications.\r\nIn our contribution we will present the model-based design of a lead-free 30 kHz bending transducer for applications up to 10 W. Furthermore, the comprehensive experimental analysis of this transducer-prototype in applications like mist generation or ultrasonic drilling will be presented. The results will be compared to a PZT-based bending transducer and a classical BLT to show the potential and limits of these kind of transducers and lead-free materials.\r\n"}]}]