[{"publication":"Engineering Computations","type":"journal_article","status":"public","abstract":[{"text":"<jats:sec>\r\n                    <jats:title>Purpose</jats:title>\r\n                    <jats:p>The purpose of this paper is to develop new methods of error representation to improve the accuracy and numerical efficiency of a posteriori and goal-oriented adaptive framework of elastoplasticity with Prandtl–Reuss type material laws.</jats:p>\r\n                  </jats:sec>\r\n                  <jats:sec>\r\n                    <jats:title>Design/methodology/approach</jats:title>\r\n                    <jats:p>To obtain new methods of error representation for a posteriori and goal-oriented error estimators, weak forms of primal and dual problems are investigated starting with the initial boundary value problem (IBVP). Then, we approximate both problems using temporal discretization. Additionally, we introduce a secant form considering the nonlinearity of elasto-plastic constitutive equations, which is approximated by a tangent form. Finally, we obtain numerical primal and dual solutions and their corresponding error approximations of discretized primal and dual problems, allowing to build several goal-oriented a posteriori error estimators on temporal and spatial adaptive refinement by inserting primal solutions, dual solutions and their error approximations as arguments in residuals of both weak forms as well as in the secant form of the bilinear residual.</jats:p>\r\n                  </jats:sec>\r\n                  <jats:sec>\r\n                    <jats:title>Findings</jats:title>\r\n                    <jats:p>An elasto-plastic material is investigated in a framework of goal-oriented error estimator by using separately several methods of error representation to deal with either temporal or spatial adaptive refinement, as well as with both refinements leading to an effective reduction of computational effort. Specifically, new error representations based on goal-oriented error estimators are presented and obtained from primal and dual residuals, which use only primal solutions or only dual solutions or a combination of primal and dual solutions as arguments. Error representations obtained from primal residuals and evaluated using only primal arguments do not require the formulation of a dual problem.</jats:p>\r\n                  </jats:sec>\r\n                  <jats:sec>\r\n                    <jats:title>Research limitations/implications</jats:title>\r\n                    <jats:p>The effectiveness of the different proposed methods is illustrated by an example of a perforated sheet for adaptive spatial refinement where new mesh adaptation methods of error representation are compared against existing mesh adaptation methods such as uniform mesh refinement, mesh refinement based on gradient indicators and adjoint-based methods in literature. The framework generates a balanced mesh consisting of fine, medium and coarse elements for accurate results, avoiding a numerically costly simulation with only fine elements.</jats:p>\r\n                  </jats:sec>\r\n                  <jats:sec>\r\n                    <jats:title>Originality/value</jats:title>\r\n                    <jats:p>All new proposed methods of error representation successfully estimate actual errors during mesh adaptivity. Furthermore, the proposed methods of error representation allow us to obtain significant reduction and equidistribution of spatial error at the end of the mesh adaptivity process. Their application to a framework of goal-oriented error estimation due to time and mesh adaptivity remains an open issue.</jats:p>\r\n                  </jats:sec>","lang":"eng"}],"department":[{"_id":"9"},{"_id":"952"},{"_id":"321"}],"user_id":"85414","_id":"63676","language":[{"iso":"eng"}],"publication_identifier":{"issn":["0264-4401","1758-7077"]},"quality_controlled":"1","publication_status":"published","page":"1-40","citation":{"apa":"Tchomgue Simeu, A., Caylak, I., &#38; Ostwald, R. (2026). Error representations for goal-oriented                    <i>a posteriori</i>                    error estimation in elasto-plasticity with applications to mesh adaptivity. <i>Engineering Computations</i>, 1–40. <a href=\"https://doi.org/10.1108/ec-12-2023-0975\">https://doi.org/10.1108/ec-12-2023-0975</a>","mla":"Tchomgue Simeu, Arnold, et al. “Error Representations for Goal-Oriented                    <i>a Posteriori</i>                    Error Estimation in Elasto-Plasticity with Applications to Mesh Adaptivity.” <i>Engineering Computations</i>, Emerald, 2026, pp. 1–40, doi:<a href=\"https://doi.org/10.1108/ec-12-2023-0975\">10.1108/ec-12-2023-0975</a>.","short":"A. Tchomgue Simeu, I. Caylak, R. Ostwald, Engineering Computations (2026) 1–40.","bibtex":"@article{Tchomgue Simeu_Caylak_Ostwald_2026, title={Error representations for goal-oriented                    <i>a posteriori</i>                    error estimation in elasto-plasticity with applications to mesh adaptivity}, DOI={<a href=\"https://doi.org/10.1108/ec-12-2023-0975\">10.1108/ec-12-2023-0975</a>}, journal={Engineering Computations}, publisher={Emerald}, author={Tchomgue Simeu, Arnold and Caylak, Ismail and Ostwald, Richard}, year={2026}, pages={1–40} }","chicago":"Tchomgue Simeu, Arnold, Ismail Caylak, and Richard Ostwald. “Error Representations for Goal-Oriented                    <i>a Posteriori</i>                    Error Estimation in Elasto-Plasticity with Applications to Mesh Adaptivity.” <i>Engineering Computations</i>, 2026, 1–40. <a href=\"https://doi.org/10.1108/ec-12-2023-0975\">https://doi.org/10.1108/ec-12-2023-0975</a>.","ieee":"A. Tchomgue Simeu, I. Caylak, and R. Ostwald, “Error representations for goal-oriented                    <i>a posteriori</i>                    error estimation in elasto-plasticity with applications to mesh adaptivity,” <i>Engineering Computations</i>, pp. 1–40, 2026, doi: <a href=\"https://doi.org/10.1108/ec-12-2023-0975\">10.1108/ec-12-2023-0975</a>.","ama":"Tchomgue Simeu A, Caylak I, Ostwald R. Error representations for goal-oriented                    <i>a posteriori</i>                    error estimation in elasto-plasticity with applications to mesh adaptivity. <i>Engineering Computations</i>. Published online 2026:1-40. doi:<a href=\"https://doi.org/10.1108/ec-12-2023-0975\">10.1108/ec-12-2023-0975</a>"},"year":"2026","author":[{"first_name":"Arnold","last_name":"Tchomgue Simeu","id":"83075","full_name":"Tchomgue Simeu, Arnold"},{"first_name":"Ismail","full_name":"Caylak, Ismail","id":"75","last_name":"Caylak"},{"last_name":"Ostwald","orcid":"0000-0003-2147-8444","id":"106876","full_name":"Ostwald, Richard","first_name":"Richard"}],"date_created":"2026-01-21T06:49:18Z","date_updated":"2026-01-21T06:50:58Z","publisher":"Emerald","doi":"10.1108/ec-12-2023-0975","title":"Error representations for goal-oriented                    <i>a posteriori</i>                    error estimation in elasto-plasticity with applications to mesh adaptivity"},{"keyword":["electrocatalysis","Co3O4","EQCM-D","OER"],"language":[{"iso":"eng"}],"abstract":[{"text":"Cobalt spinel (Co3O4) catalysts are widely studied in scope of the electrocatalytic oxygen evolution reaction (OER), yet the role of interfacial structural transformation under anodic bias remains under debate. Here, we employ an operando approach, combining a fast electrochemical quartz crystal microbalance with dissipation monitoring (EQCM-D), electrochemical impedance spectroscopy (EIS), and Raman spectroscopy to investigate interfacial transformations of Co3O4 nanoparticle electrodes in alkaline electrolyte. We identify two distinct regimes during the anodic sweep prior to the macroscopic OER onset. At lower potentials, the catalyst interface remains mechanically rigid while reversibly associating several OH−/H2O species per oxidized cobalt site. At higher potentials, pronounced softening of the interface occurs alongside further uptake of electrolyte species. This indicates amorphization and a ‘swelling process’ beyond simple adsorption. Notably, an electrochemical conditioning treatment can suppress mass and compliance hysteresis without affecting OER activity, suggesting that most incorporated electrolyte species do not participate in the OER. EIS further reveals that OER intermediates form well below the apparent OER onset potential. These results advance our mechanistic understanding of interfacial transformations in cobalt-based OER catalysts and establish EQCM-D as a sensitive operando technique for probing electrocatalyst transformations.","lang":"eng"}],"publication":"ChemCatChem","title":"Interfacial Softening and Electrolyte Uptake in Co<sub>3</sub>O<sub>4</sub> OER Catalysts: Insight from <i>Operando</i> Spectroscopy and Fast EQCM‐D","publisher":"Wiley","date_created":"2026-01-20T19:33:40Z","year":"2026","quality_controlled":"1","issue":"2","article_number":"e01104","_id":"63675","department":[{"_id":"985"}],"user_id":"116779","status":"public","type":"journal_article","doi":"10.1002/cctc.202501104","main_file_link":[{"open_access":"1"}],"date_updated":"2026-01-20T19:36:51Z","oa":"1","volume":18,"author":[{"first_name":"Christian","last_name":"Leppin","full_name":"Leppin, Christian","id":"117722"},{"full_name":"Placke‐Yan, Carsten","last_name":"Placke‐Yan","first_name":"Carsten"},{"first_name":"Georg","full_name":"Bendt, Georg","last_name":"Bendt"},{"first_name":"Sheila","last_name":"Hernandez","full_name":"Hernandez, Sheila"},{"first_name":"Kristina","last_name":"Tschulik","full_name":"Tschulik, Kristina"},{"last_name":"Schulz","full_name":"Schulz, Stephan","first_name":"Stephan"},{"first_name":"Julia","id":"116779","full_name":"Linnemann, Julia","last_name":"Linnemann","orcid":"0000-0001-6883-5424"}],"intvolume":"        18","citation":{"apa":"Leppin, C., Placke‐Yan, C., Bendt, G., Hernandez, S., Tschulik, K., Schulz, S., &#38; Linnemann, J. (2026). Interfacial Softening and Electrolyte Uptake in Co<sub>3</sub>O<sub>4</sub> OER Catalysts: Insight from <i>Operando</i> Spectroscopy and Fast EQCM‐D. <i>ChemCatChem</i>, <i>18</i>(2), Article e01104. <a href=\"https://doi.org/10.1002/cctc.202501104\">https://doi.org/10.1002/cctc.202501104</a>","mla":"Leppin, Christian, et al. “Interfacial Softening and Electrolyte Uptake in Co<sub>3</sub>O<sub>4</sub> OER Catalysts: Insight from <i>Operando</i> Spectroscopy and Fast EQCM‐D.” <i>ChemCatChem</i>, vol. 18, no. 2, e01104, Wiley, 2026, doi:<a href=\"https://doi.org/10.1002/cctc.202501104\">10.1002/cctc.202501104</a>.","short":"C. Leppin, C. Placke‐Yan, G. Bendt, S. Hernandez, K. Tschulik, S. Schulz, J. Linnemann, ChemCatChem 18 (2026).","bibtex":"@article{Leppin_Placke‐Yan_Bendt_Hernandez_Tschulik_Schulz_Linnemann_2026, title={Interfacial Softening and Electrolyte Uptake in Co<sub>3</sub>O<sub>4</sub> OER Catalysts: Insight from <i>Operando</i> Spectroscopy and Fast EQCM‐D}, volume={18}, DOI={<a href=\"https://doi.org/10.1002/cctc.202501104\">10.1002/cctc.202501104</a>}, number={2e01104}, journal={ChemCatChem}, publisher={Wiley}, author={Leppin, Christian and Placke‐Yan, Carsten and Bendt, Georg and Hernandez, Sheila and Tschulik, Kristina and Schulz, Stephan and Linnemann, Julia}, year={2026} }","ieee":"C. Leppin <i>et al.</i>, “Interfacial Softening and Electrolyte Uptake in Co<sub>3</sub>O<sub>4</sub> OER Catalysts: Insight from <i>Operando</i> Spectroscopy and Fast EQCM‐D,” <i>ChemCatChem</i>, vol. 18, no. 2, Art. no. e01104, 2026, doi: <a href=\"https://doi.org/10.1002/cctc.202501104\">10.1002/cctc.202501104</a>.","chicago":"Leppin, Christian, Carsten Placke‐Yan, Georg Bendt, Sheila Hernandez, Kristina Tschulik, Stephan Schulz, and Julia Linnemann. “Interfacial Softening and Electrolyte Uptake in Co<sub>3</sub>O<sub>4</sub> OER Catalysts: Insight from <i>Operando</i> Spectroscopy and Fast EQCM‐D.” <i>ChemCatChem</i> 18, no. 2 (2026). <a href=\"https://doi.org/10.1002/cctc.202501104\">https://doi.org/10.1002/cctc.202501104</a>.","ama":"Leppin C, Placke‐Yan C, Bendt G, et al. Interfacial Softening and Electrolyte Uptake in Co<sub>3</sub>O<sub>4</sub> OER Catalysts: Insight from <i>Operando</i> Spectroscopy and Fast EQCM‐D. <i>ChemCatChem</i>. 2026;18(2). doi:<a href=\"https://doi.org/10.1002/cctc.202501104\">10.1002/cctc.202501104</a>"},"publication_identifier":{"issn":["1867-3880","1867-3899"]},"publication_status":"published"},{"citation":{"apa":"Schneijderberg, C., Wieczorek, O., &#38; Steinhardt, I. (2026). <i>The Handbook of Qualitative and Quantitative Content Analysis</i>. Routledge. <a href=\"https://doi.org/10.4324/9781003496397\">https://doi.org/10.4324/9781003496397</a>","short":"C. Schneijderberg, O. Wieczorek, I. Steinhardt, The Handbook of Qualitative and Quantitative Content Analysis, Routledge, London, 2026.","bibtex":"@book{Schneijderberg_Wieczorek_Steinhardt_2026, place={London}, title={The Handbook of Qualitative and Quantitative Content Analysis}, DOI={<a href=\"https://doi.org/10.4324/9781003496397\">10.4324/9781003496397</a>}, publisher={Routledge}, author={Schneijderberg, Christian and Wieczorek, Oliver and Steinhardt, Isabel}, year={2026} }","mla":"Schneijderberg, Christian, et al. <i>The Handbook of Qualitative and Quantitative Content Analysis</i>. Routledge, 2026, doi:<a href=\"https://doi.org/10.4324/9781003496397\">10.4324/9781003496397</a>.","ieee":"C. Schneijderberg, O. Wieczorek, and I. Steinhardt, <i>The Handbook of Qualitative and Quantitative Content Analysis</i>. London: Routledge, 2026.","chicago":"Schneijderberg, Christian, Oliver Wieczorek, and Isabel Steinhardt. <i>The Handbook of Qualitative and Quantitative Content Analysis</i>. London: Routledge, 2026. <a href=\"https://doi.org/10.4324/9781003496397\">https://doi.org/10.4324/9781003496397</a>.","ama":"Schneijderberg C, Wieczorek O, Steinhardt I. <i>The Handbook of Qualitative and Quantitative Content Analysis</i>. Routledge; 2026. doi:<a href=\"https://doi.org/10.4324/9781003496397\">10.4324/9781003496397</a>"},"place":"London","year":"2026","publication_status":"published","publication_identifier":{"isbn":["9781003496397"]},"main_file_link":[{"open_access":"1","url":"https://www.taylorfrancis.com/books/9781003496397"}],"doi":"10.4324/9781003496397","title":"The Handbook of Qualitative and Quantitative Content Analysis","date_created":"2026-01-21T10:48:39Z","author":[{"first_name":"Christian","last_name":"Schneijderberg","full_name":"Schneijderberg, Christian"},{"full_name":"Wieczorek, Oliver","last_name":"Wieczorek","first_name":"Oliver"},{"first_name":"Isabel","full_name":"Steinhardt, Isabel","id":"90339","orcid":"https://orcid.org/0000-0002-2590-6189","last_name":"Steinhardt"}],"oa":"1","date_updated":"2026-01-21T10:50:44Z","publisher":"Routledge","status":"public","abstract":[{"text":"Translated from German, The Handbook of Qualitative and Quantitative Content Analysis is a comprehensive handbook which offers an application-orientated introduction to qualitative and quantitative content analysis methods.\r\n\r\nThe book provides explanations for beginners from bachelor level onwards on how to select an appropriate qualitative or quantitative content analysis method and how to use the chosen method(s) depending on research interest and amount of data. Part 1 defines the basics of qualitative and quantitative content analysis and empirical research, including research quality conventions and how to do interpretation; Part 2 is a practical guide to classical qualitative content analysis and semi-automated quantitative content analysis; and Part 3 introduces Python alongside automated techniques such as correspondence analysis, semantic network analysis, sentiment analysis, and topic modelling using generative and deep learning algorithms. Each of these sections are enriched with extensive examples and cover a range of software applications, including AntConc, MAXQDA, Python, and VosViewer.\r\n\r\nThis is the ideal resource for anyone interested in content analysis research methods across the social sciences, humanities, and data sciences.","lang":"eng"}],"type":"book","popular_science":"1","alternative_title":["Introduction to Classical, Digital, AI-supported, and Automated Data Analysis"],"language":[{"iso":"eng"}],"user_id":"90339","department":[{"_id":"121"}],"_id":"63686"},{"publication_status":"published","has_accepted_license":"1","citation":{"chicago":"Albers, Timm. “Von Brüchen und Brücken. Sprachliche Bildung im Übergang von der Kita zur Schule.” <i>Jugendhilfereport</i> 01–2026 (2026).","ieee":"T. Albers, “Von Brüchen und Brücken. Sprachliche Bildung im Übergang von der Kita zur Schule,” <i>Jugendhilfereport</i>, vol. 01–2026, 2026.","ama":"Albers T. Von Brüchen und Brücken. Sprachliche Bildung im Übergang von der Kita zur Schule. <i>Jugendhilfereport</i>. 2026;01-2026.","mla":"Albers, Timm. “Von Brüchen und Brücken. Sprachliche Bildung im Übergang von der Kita zur Schule.” <i>Jugendhilfereport</i>, vol. 01–2026, 2026.","short":"T. Albers, Jugendhilfereport 01–2026 (2026).","bibtex":"@article{Albers_2026, title={Von Brüchen und Brücken. Sprachliche Bildung im Übergang von der Kita zur Schule}, volume={01–2026}, journal={Jugendhilfereport}, author={Albers, Timm}, year={2026} }","apa":"Albers, T. (2026). Von Brüchen und Brücken. Sprachliche Bildung im Übergang von der Kita zur Schule. <i>Jugendhilfereport</i>, <i>01–2026</i>."},"year":"2026","date_created":"2026-01-21T09:18:01Z","author":[{"first_name":"Timm","last_name":"Albers","full_name":"Albers, Timm","id":"48393"}],"volume":"01-2026","date_updated":"2026-01-21T10:56:36Z","title":"Von Brüchen und Brücken. Sprachliche Bildung im Übergang von der Kita zur Schule","type":"journal_article","publication":"Jugendhilfereport","status":"public","user_id":"48393","department":[{"_id":"461"}],"_id":"63678","language":[{"iso":"ger"}],"article_type":"original","ddc":["050"]},{"language":[{"iso":"ger"}],"user_id":"84452","_id":"63694","status":"public","type":"journal_article","publication":"die hochschullehre","main_file_link":[{"open_access":"1","url":"https://die-hochschullehre.de/articles/349/files/6968cf812df64.pdf"}],"doi":"10.3278/HSL2607W","title":"Erbwort oder Buchwort? Decoding the Disciplines in Romanistikseminaren","author":[{"first_name":"Irene Dorothea","last_name":"Kunert","id":"84452","full_name":"Kunert, Irene Dorothea"}],"date_created":"2026-01-21T13:12:47Z","volume":12,"oa":"1","date_updated":"2026-01-21T13:13:00Z","citation":{"ieee":"I. D. Kunert, “Erbwort oder Buchwort? Decoding the Disciplines in Romanistikseminaren,” <i>die hochschullehre</i>, vol. 12, pp. 81–96, 2026, doi: <a href=\"https://doi.org/10.3278/HSL2607W\">10.3278/HSL2607W</a>.","chicago":"Kunert, Irene Dorothea. “Erbwort oder Buchwort? Decoding the Disciplines in Romanistikseminaren.” <i>die hochschullehre</i> 12 (2026): 81–96. <a href=\"https://doi.org/10.3278/HSL2607W\">https://doi.org/10.3278/HSL2607W</a>.","ama":"Kunert ID. Erbwort oder Buchwort? Decoding the Disciplines in Romanistikseminaren. <i>die hochschullehre</i>. 2026;12:81-96. doi:<a href=\"https://doi.org/10.3278/HSL2607W\">10.3278/HSL2607W</a>","apa":"Kunert, I. D. (2026). Erbwort oder Buchwort? Decoding the Disciplines in Romanistikseminaren. <i>die hochschullehre</i>, <i>12</i>, 81–96. <a href=\"https://doi.org/10.3278/HSL2607W\">https://doi.org/10.3278/HSL2607W</a>","short":"I.D. Kunert, die hochschullehre 12 (2026) 81–96.","mla":"Kunert, Irene Dorothea. “Erbwort oder Buchwort? Decoding the Disciplines in Romanistikseminaren.” <i>die hochschullehre</i>, vol. 12, 2026, pp. 81–96, doi:<a href=\"https://doi.org/10.3278/HSL2607W\">10.3278/HSL2607W</a>.","bibtex":"@article{Kunert_2026, title={Erbwort oder Buchwort? Decoding the Disciplines in Romanistikseminaren}, volume={12}, DOI={<a href=\"https://doi.org/10.3278/HSL2607W\">10.3278/HSL2607W</a>}, journal={die hochschullehre}, author={Kunert, Irene Dorothea}, year={2026}, pages={81–96} }"},"intvolume":"        12","page":"81-96","year":"2026"},{"title":"Umgang mit digitalen Medien im Jugendalter","date_updated":"2026-01-22T08:19:59Z","publisher":"Springer","author":[{"full_name":"Kurock, Ricarda","id":"78797","last_name":"Kurock","first_name":"Ricarda"},{"first_name":"Lisa","last_name":"Jungkeim","full_name":"Jungkeim, Lisa"},{"first_name":"Nicole","last_name":"Kuhn","id":"38556","full_name":"Kuhn, Nicole"}],"date_created":"2026-01-22T08:18:56Z","place":"Berlin","year":"2026","citation":{"apa":"Kurock, R., Jungkeim, L., &#38; Kuhn, N. (2026). Umgang mit digitalen Medien im Jugendalter. In B. Kracke &#38; P. Noack (Eds.), <i>Handbuch Entwicklungs- und Erziehungspsychologie</i> (2nd ed.). Springer.","short":"R. Kurock, L. Jungkeim, N. Kuhn, in: B. Kracke, P. Noack (Eds.), Handbuch Entwicklungs- Und Erziehungspsychologie, 2nd ed., Springer, Berlin, 2026.","bibtex":"@inbook{Kurock_Jungkeim_Kuhn_2026, place={Berlin}, edition={2}, title={Umgang mit digitalen Medien im Jugendalter}, booktitle={Handbuch Entwicklungs- und Erziehungspsychologie}, publisher={Springer}, author={Kurock, Ricarda and Jungkeim, Lisa and Kuhn, Nicole}, editor={Kracke, Bärbel and Noack, Peter }, year={2026} }","mla":"Kurock, Ricarda, et al. “Umgang Mit Digitalen Medien Im Jugendalter.” <i>Handbuch Entwicklungs- Und Erziehungspsychologie</i>, edited by Bärbel Kracke and Peter  Noack, 2nd ed., Springer, 2026.","ieee":"R. Kurock, L. Jungkeim, and N. Kuhn, “Umgang mit digitalen Medien im Jugendalter,” in <i>Handbuch Entwicklungs- und Erziehungspsychologie</i>, 2nd ed., B. Kracke and P. Noack, Eds. Berlin: Springer, 2026.","chicago":"Kurock, Ricarda, Lisa Jungkeim, and Nicole Kuhn. “Umgang Mit Digitalen Medien Im Jugendalter.” In <i>Handbuch Entwicklungs- Und Erziehungspsychologie</i>, edited by Bärbel Kracke and Peter  Noack, 2nd ed. Berlin: Springer, 2026.","ama":"Kurock R, Jungkeim L, Kuhn N. Umgang mit digitalen Medien im Jugendalter. In: Kracke B, Noack P, eds. <i>Handbuch Entwicklungs- Und Erziehungspsychologie</i>. 2nd ed. Springer; 2026."},"edition":"2","keyword":["Mediennutzung","Soziale Medien","Digitale Kompetenzen","Peers","Familie"],"language":[{"iso":"eng"}],"_id":"63696","department":[{"_id":"427"}],"user_id":"38556","abstract":[{"lang":"ger","text":"Das Kapitel beleuchtet, wie digitale Medien von Jugendlichen genutzt werden und wie diese Nutzung die Entwicklung von Jugendlichen beeinflusst, indem Einblicke in Nutzungsmuster, Chancen und Risiken digitaler Medien sowie in den Stand digitaler Kompetenzen gegeben werden. Zwei zentrale Sozialisationsinstanzen (Familie und Peers) werden genauer beleuchtet. Ziel ist es, pädagogische und gesellschaftliche Strategien zur Förderung digitaler Mündigkeit aufzuzeigen."}],"editor":[{"first_name":"Bärbel","full_name":"Kracke, Bärbel","last_name":"Kracke"},{"first_name":"Peter ","last_name":"Noack","full_name":"Noack, Peter "}],"status":"public","publication":"Handbuch Entwicklungs- und Erziehungspsychologie","type":"book_chapter"},{"title":"An unholy trinity: TFNP, polynomial systems, and the quantum  satisfiability problem","date_updated":"2026-01-23T07:53:03Z","volume":362,"author":[{"first_name":"Marco","full_name":"Aldi, Marco","last_name":"Aldi"},{"orcid":"0000-0002-9992-3379","last_name":"Gharibian","full_name":"Gharibian, Sevag","id":"71541","first_name":"Sevag"},{"full_name":"Rudolph, Dorian","id":"57863","last_name":"Rudolph","first_name":"Dorian"}],"date_created":"2024-12-30T13:55:27Z","year":"2026","page":"7:1-7:24","intvolume":"       362","citation":{"ama":"Aldi M, Gharibian S, Rudolph D. An unholy trinity: TFNP, polynomial systems, and the quantum  satisfiability problem. In: <i>17th Innovations in Theoretical Computer Science Conference (ITCS 2026)</i>. Vol 362. ; 2026:7:1-7:24.","chicago":"Aldi, Marco, Sevag Gharibian, and Dorian Rudolph. “An Unholy Trinity: TFNP, Polynomial Systems, and the Quantum  Satisfiability Problem.” In <i>17th Innovations in Theoretical Computer Science Conference (ITCS 2026)</i>, 362:7:1-7:24, 2026.","ieee":"M. Aldi, S. Gharibian, and D. Rudolph, “An unholy trinity: TFNP, polynomial systems, and the quantum  satisfiability problem,” in <i>17th Innovations in Theoretical Computer Science Conference (ITCS 2026)</i>, 2026, vol. 362, p. 7:1-7:24.","short":"M. Aldi, S. Gharibian, D. Rudolph, in: 17th Innovations in Theoretical Computer Science Conference (ITCS 2026), 2026, p. 7:1-7:24.","mla":"Aldi, Marco, et al. “An Unholy Trinity: TFNP, Polynomial Systems, and the Quantum  Satisfiability Problem.” <i>17th Innovations in Theoretical Computer Science Conference (ITCS 2026)</i>, vol. 362, 2026, p. 7:1-7:24.","bibtex":"@inproceedings{Aldi_Gharibian_Rudolph_2026, title={An unholy trinity: TFNP, polynomial systems, and the quantum  satisfiability problem}, volume={362}, booktitle={17th Innovations in Theoretical Computer Science Conference (ITCS 2026)}, author={Aldi, Marco and Gharibian, Sevag and Rudolph, Dorian}, year={2026}, pages={7:1-7:24} }","apa":"Aldi, M., Gharibian, S., &#38; Rudolph, D. (2026). An unholy trinity: TFNP, polynomial systems, and the quantum  satisfiability problem. <i>17th Innovations in Theoretical Computer Science Conference (ITCS 2026)</i>, <i>362</i>, 7:1-7:24."},"publication_status":"published","language":[{"iso":"eng"}],"_id":"57866","external_id":{"arxiv":["2412.19623"]},"user_id":"71541","abstract":[{"lang":"eng","text":"The theory of Total Function NP (TFNP) and its subclasses says that, even if\r\none is promised an efficiently verifiable proof exists for a problem, finding\r\nthis proof can be intractable. Despite the success of the theory at showing\r\nintractability of problems such as computing Brouwer fixed points and Nash\r\nequilibria, subclasses of TFNP remain arguably few and far between. In this\r\nwork, we define two new subclasses of TFNP borne of the study of complex\r\npolynomial systems: Multi-homogeneous Systems (MHS) and Sparse Fundamental\r\nTheorem of Algebra (SFTA). The first of these is based on B\\'ezout's theorem\r\nfrom algebraic geometry, marking the first TFNP subclass based on an algebraic\r\ngeometric principle. At the heart of our study is the computational problem\r\nknown as Quantum SAT (QSAT) with a System of Distinct Representatives (SDR),\r\nfirst studied by [Laumann, L\\\"auchli, Moessner, Scardicchio, and Sondhi 2010].\r\nAmong other results, we show that QSAT with SDR is MHS-complete, thus giving\r\nnot only the first link between quantum complexity theory and TFNP, but also\r\nthe first TFNP problem whose classical variant (SAT with SDR) is easy but whose\r\nquantum variant is hard. We also show how to embed the roots of a sparse,\r\nhigh-degree, univariate polynomial into QSAT with SDR, obtaining that SFTA is\r\ncontained in a zero-error version of MHS. We conjecture this construction also\r\nworks in the low-error setting, which would imply SFTA is contained in MHS."}],"status":"public","publication":"17th Innovations in Theoretical Computer Science Conference (ITCS 2026)","type":"conference"},{"publication_status":"published","publication_identifier":{"issn":["1359-4311"]},"citation":{"chicago":"Schumacher, Daniel, Gabriela Guevara-Carrion, Tina Kasper, Andreas Paul, Andreas Elsner, Bettina Peters, Wenke Wollny, et al. “Aging of Polyurethane Foam: Experimental Analysis and Modeling of Cell Gas Composition and Thermal Conductivity.” <i>Applied Thermal Engineering</i> 289 (2026). <a href=\"https://doi.org/10.1016/j.applthermaleng.2026.129850\">https://doi.org/10.1016/j.applthermaleng.2026.129850</a>.","ieee":"D. Schumacher <i>et al.</i>, “Aging of polyurethane foam: Experimental analysis and modeling of cell gas composition and thermal conductivity,” <i>Applied Thermal Engineering</i>, vol. 289, Art. no. 129850, 2026, doi: <a href=\"https://doi.org/10.1016/j.applthermaleng.2026.129850\">10.1016/j.applthermaleng.2026.129850</a>.","ama":"Schumacher D, Guevara-Carrion G, Kasper T, et al. Aging of polyurethane foam: Experimental analysis and modeling of cell gas composition and thermal conductivity. <i>Applied Thermal Engineering</i>. 2026;289. doi:<a href=\"https://doi.org/10.1016/j.applthermaleng.2026.129850\">10.1016/j.applthermaleng.2026.129850</a>","apa":"Schumacher, D., Guevara-Carrion, G., Kasper, T., Paul, A., Elsner, A., Peters, B., Wollny, W., Bluemel, M., Hoelscher, H., Brzoska-Steinhaus, N., Heil, K., Schleelein, L., Becker, W., Gries, U., &#38; Vrabec, J. (2026). Aging of polyurethane foam: Experimental analysis and modeling of cell gas composition and thermal conductivity. <i>Applied Thermal Engineering</i>, <i>289</i>, Article 129850. <a href=\"https://doi.org/10.1016/j.applthermaleng.2026.129850\">https://doi.org/10.1016/j.applthermaleng.2026.129850</a>","bibtex":"@article{Schumacher_Guevara-Carrion_Kasper_Paul_Elsner_Peters_Wollny_Bluemel_Hoelscher_Brzoska-Steinhaus_et al._2026, title={Aging of polyurethane foam: Experimental analysis and modeling of cell gas composition and thermal conductivity}, volume={289}, DOI={<a href=\"https://doi.org/10.1016/j.applthermaleng.2026.129850\">10.1016/j.applthermaleng.2026.129850</a>}, number={129850}, journal={Applied Thermal Engineering}, publisher={Elsevier BV}, author={Schumacher, Daniel and Guevara-Carrion, Gabriela and Kasper, Tina and Paul, Andreas and Elsner, Andreas and Peters, Bettina and Wollny, Wenke and Bluemel, Marcus and Hoelscher, Heike and Brzoska-Steinhaus, Nicola and et al.}, year={2026} }","mla":"Schumacher, Daniel, et al. “Aging of Polyurethane Foam: Experimental Analysis and Modeling of Cell Gas Composition and Thermal Conductivity.” <i>Applied Thermal Engineering</i>, vol. 289, 129850, Elsevier BV, 2026, doi:<a href=\"https://doi.org/10.1016/j.applthermaleng.2026.129850\">10.1016/j.applthermaleng.2026.129850</a>.","short":"D. Schumacher, G. Guevara-Carrion, T. Kasper, A. Paul, A. Elsner, B. Peters, W. Wollny, M. Bluemel, H. Hoelscher, N. Brzoska-Steinhaus, K. Heil, L. Schleelein, W. Becker, U. Gries, J. Vrabec, Applied Thermal Engineering 289 (2026)."},"intvolume":"       289","date_updated":"2026-01-23T12:53:26Z","author":[{"first_name":"Daniel","last_name":"Schumacher","full_name":"Schumacher, Daniel"},{"last_name":"Guevara-Carrion","full_name":"Guevara-Carrion, Gabriela","first_name":"Gabriela"},{"id":"94562","full_name":"Kasper, Tina","last_name":"Kasper","orcid":"0000-0003-3993-5316 ","first_name":"Tina"},{"first_name":"Andreas","last_name":"Paul","full_name":"Paul, Andreas","id":"7828"},{"first_name":"Andreas","full_name":"Elsner, Andreas","id":"16124","last_name":"Elsner"},{"first_name":"Bettina","full_name":"Peters, Bettina","id":"62920","last_name":"Peters"},{"full_name":"Wollny, Wenke","last_name":"Wollny","first_name":"Wenke"},{"first_name":"Marcus","full_name":"Bluemel, Marcus","last_name":"Bluemel"},{"last_name":"Hoelscher","full_name":"Hoelscher, Heike","first_name":"Heike"},{"full_name":"Brzoska-Steinhaus, Nicola","last_name":"Brzoska-Steinhaus","first_name":"Nicola"},{"first_name":"Klaus","last_name":"Heil","full_name":"Heil, Klaus"},{"first_name":"Lukas","full_name":"Schleelein, Lukas","last_name":"Schleelein"},{"full_name":"Becker, Wolfgang","last_name":"Becker","first_name":"Wolfgang"},{"full_name":"Gries, Ulrich","last_name":"Gries","first_name":"Ulrich"},{"full_name":"Vrabec, Jadran","last_name":"Vrabec","first_name":"Jadran"}],"volume":289,"doi":"10.1016/j.applthermaleng.2026.129850","type":"journal_article","status":"public","_id":"63720","user_id":"7828","department":[{"_id":"728"}],"article_type":"original","article_number":"129850","quality_controlled":"1","year":"2026","publisher":"Elsevier BV","date_created":"2026-01-23T12:48:07Z","title":"Aging of polyurethane foam: Experimental analysis and modeling of cell gas composition and thermal conductivity","publication":"Applied Thermal Engineering","abstract":[{"text":"The aging behavior of closed-cell polyurethane (PUR) foam, a material widely used in household refrigeration, is studied by examining the variation of cell gas composition and thermal conductivity over time. Aging is primarily driven by gas permeation, wherein the initially present cell gases carbon dioxide and cyclopentane are progressively replaced by nitrogen and oxygen from the ambient, resulting in an increased thermal conductivity and reduced insulation performance. The cell gas composition is measured over 1400 days employing gas chromatography, and the thermal conductivity of the foam is measured over 190 days. Morphological foam characteristics, such as average cell diameter, are determined via scanning electron microscopy and barrier measurements are performed to estimate the effective diffusion coefficient of oxygen. To simulate the aging process, one-dimensional and three-dimensional models are developed for both diffusive mass transfer as well as heat transfer. The present model for the thermal conductivity explicitly accounts for condensation effects, i.e. partial condensation of cyclopentane and carbon dioxide occurring at around 12°C, which significantly influences the insulation behavior of the foam. Sensitivity analyses indicate that an initial cell gas pressure of approximately 0.7 bar yields results that closely coincide with the experimental measurements, where the three-dimensional model demonstrates better accuracy. These measurements and simulations provide valuable insights for evaluating and predicting the long-term degradation of the insulation performance of PUR foams.","lang":"eng"}],"keyword":["Polyurethane","Foam","Gas permeation","Diffusion models","Thermal conductivity","Condensation","Gas chromatography","Scanning electron microscopy"],"language":[{"iso":"eng"}]},{"title":"Nachhaltiges Clubsterben? Überlegungen zu Kommodifizierung und Nachhaltigkeit im Kontext des Clubsterbens in Deutschland (im Erscheinen)","conference":{"start_date":"2024-09-27","name":"Clubsterben: Sozioökonomischer Wandel und urbane Musikkulturen","location":"Albert-Ludwigs-Universität Freiburg","end_date":"2024-09-28"},"date_updated":"2026-01-23T13:06:23Z","author":[{"last_name":"Flath","orcid":"https://orcid.org/0000-0002-1648-0796","full_name":"Flath, Beate","id":"58896","first_name":"Beate"}],"date_created":"2025-08-15T07:43:54Z","year":"2026","citation":{"chicago":"Flath, Beate. “Nachhaltiges Clubsterben? Überlegungen zu Kommodifizierung und Nachhaltigkeit im Kontext des Clubsterbens in Deutschland (im Erscheinen).” In <i>Clubsterben: Sozioökonomischer Wandel und urbane Musikkulturen</i>, edited by Michael  Fischer, Lorenz  Rommelspacher, and Martin  Lücke, n.d.","ieee":"B. Flath, “Nachhaltiges Clubsterben? Überlegungen zu Kommodifizierung und Nachhaltigkeit im Kontext des Clubsterbens in Deutschland (im Erscheinen),” in <i>Clubsterben: Sozioökonomischer Wandel und urbane Musikkulturen</i>, M. Fischer, L. Rommelspacher, and M. Lücke, Eds. .","ama":"Flath B. Nachhaltiges Clubsterben? Überlegungen zu Kommodifizierung und Nachhaltigkeit im Kontext des Clubsterbens in Deutschland (im Erscheinen). In: Fischer M, Rommelspacher L, Lücke M, eds. <i>Clubsterben: Sozioökonomischer Wandel und urbane Musikkulturen</i>.","apa":"Flath, B. (n.d.). Nachhaltiges Clubsterben? Überlegungen zu Kommodifizierung und Nachhaltigkeit im Kontext des Clubsterbens in Deutschland (im Erscheinen). In M. Fischer, L. Rommelspacher, &#38; M. Lücke (Eds.), <i>Clubsterben: Sozioökonomischer Wandel und urbane Musikkulturen</i>.","mla":"Flath, Beate. “Nachhaltiges Clubsterben? Überlegungen zu Kommodifizierung und Nachhaltigkeit im Kontext des Clubsterbens in Deutschland (im Erscheinen).” <i>Clubsterben: Sozioökonomischer Wandel und urbane Musikkulturen</i>, edited by Michael  Fischer et al.","bibtex":"@inbook{Flath, title={Nachhaltiges Clubsterben? Überlegungen zu Kommodifizierung und Nachhaltigkeit im Kontext des Clubsterbens in Deutschland (im Erscheinen)}, booktitle={Clubsterben: Sozioökonomischer Wandel und urbane Musikkulturen}, author={Flath, Beate}, editor={Fischer, Michael  and Rommelspacher, Lorenz  and Lücke, Martin } }","short":"B. Flath, in: M. Fischer, L. Rommelspacher, M. Lücke (Eds.), Clubsterben: Sozioökonomischer Wandel und urbane Musikkulturen, n.d."},"quality_controlled":"1","publication_status":"submitted","language":[{"iso":"ger"}],"_id":"60931","department":[{"_id":"36"}],"user_id":"58896","editor":[{"first_name":"Michael ","full_name":"Fischer, Michael ","last_name":"Fischer"},{"full_name":"Rommelspacher, Lorenz ","last_name":"Rommelspacher","first_name":"Lorenz "},{"first_name":"Martin ","full_name":"Lücke, Martin ","last_name":"Lücke"}],"status":"public","publication":"Clubsterben: Sozioökonomischer Wandel und urbane Musikkulturen","type":"book_chapter"},{"intvolume":"         4","citation":{"mla":"Flath, Beate. “Livemusikkulturen, Virtualitäten und Metamorphosen: Perspektiven auf das kulturökonomische Konzept der Baumol’schen Kostenkrankheit.” <i>~Vibes - The IASPM D-A-CH Series</i>, vol. 4.","bibtex":"@article{Flath, title={Livemusikkulturen, Virtualitäten und Metamorphosen: Perspektiven auf das kulturökonomische Konzept der Baumol’schen Kostenkrankheit}, volume={4}, journal={~Vibes - The IASPM D-A-CH Series}, author={Flath, Beate} }","short":"B. Flath, ~Vibes - The IASPM D-A-CH Series 4 (n.d.).","apa":"Flath, B. (n.d.). Livemusikkulturen, Virtualitäten und Metamorphosen: Perspektiven auf das kulturökonomische Konzept der Baumol’schen Kostenkrankheit. <i>~Vibes - The IASPM D-A-CH Series</i>, <i>4</i>.","ama":"Flath B. Livemusikkulturen, Virtualitäten und Metamorphosen: Perspektiven auf das kulturökonomische Konzept der Baumol’schen Kostenkrankheit. <i>~Vibes - The IASPM D-A-CH Series</i>. 4.","chicago":"Flath, Beate. “Livemusikkulturen, Virtualitäten und Metamorphosen: Perspektiven auf das kulturökonomische Konzept der Baumol’schen Kostenkrankheit.” <i>~Vibes - The IASPM D-A-CH Series</i> 4 (n.d.).","ieee":"B. Flath, “Livemusikkulturen, Virtualitäten und Metamorphosen: Perspektiven auf das kulturökonomische Konzept der Baumol’schen Kostenkrankheit,” <i>~Vibes - The IASPM D-A-CH Series</i>, vol. 4."},"year":"2026","quality_controlled":"1","publication_status":"submitted","conference":{"start_date":"07.11.2024","name":"Metadaten | Metainformationen. Populäre Musik und ihre Metamorphosen","location":"Zürich ","end_date":"09.11.2024"},"title":"Livemusikkulturen, Virtualitäten und Metamorphosen: Perspektiven auf das kulturökonomische Konzept der Baumol’schen Kostenkrankheit","volume":4,"author":[{"last_name":"Flath","orcid":"https://orcid.org/0000-0002-1648-0796","id":"58896","full_name":"Flath, Beate","first_name":"Beate"}],"date_created":"2025-07-07T13:21:32Z","date_updated":"2026-01-23T13:09:30Z","status":"public","publication":"~Vibes - The IASPM D-A-CH Series","type":"journal_article","language":[{"iso":"ger"}],"department":[{"_id":"36"}],"user_id":"58896","_id":"60537"},{"_id":"63722","series_title":"Comparative Theology, Islam, and Society","user_id":"53425","department":[{"_id":"550"},{"_id":"469"}],"language":[{"iso":"eng"}],"type":"book_editor","abstract":[{"text":"This volume presents  insights from the 2025 ITS-Colloquium on Comparative Theology and So-cial Work, exploring how theological concepts and interreligious dialogue inform and critically engage  social practice. \r\nDrawing on insights  from education, psychosocial support, military chaplaincy, and community-building, it reveals the transformative potential of comparative theology in addressing migration, marginalization, and social fragmentation. The contributions critically examine the ethical depth and practical challenges of integrating religious perspectives into social work, offering valuable insights for theory and praxis in pluralistic societies, while also showing the limits and challenges of theoretical models.\r\nOverall, when critically and contextually applied, impulses from comparative theology offer both conceptual depth and practical tools for ethical, inclusive, and transformative social engagement.\r\n\r\n","lang":"eng"}],"editor":[{"first_name":"Gülbahar","last_name":"Erdem","full_name":"Erdem, Gülbahar"},{"first_name":"Tarik","last_name":"Eroglu","full_name":"Eroglu, Tarik","id":"113848"},{"last_name":"Lebock","orcid":"0009-0005-7485-1902","id":"53425","full_name":"Lebock, Sarah","first_name":"Sarah"}],"status":"public","date_updated":"2026-01-26T01:37:23Z","publisher":"DeGruyter","date_created":"2026-01-26T01:30:25Z","volume":6,"title":"Comparative Theology and Social Work: Exploring Theory and Praxis in Pluralistic Societies","conference":{"end_date":"2025-09-17","location":"Paderborn","name":"International Meeting on Comparative Theology 2026","start_date":"2025-09-16"},"publication_status":"unpublished","publication_identifier":{"unknown":["978-3-11-224-223-0"]},"quality_controlled":"1","year":"2026","citation":{"ama":"Erdem G, Eroglu T, Lebock S, eds. <i>Comparative Theology and Social Work: Exploring Theory and Praxis in Pluralistic Societies</i>. Vol 6. DeGruyter","chicago":"Erdem, Gülbahar, Tarik Eroglu, and Sarah Lebock, eds. <i>Comparative Theology and Social Work: Exploring Theory and Praxis in Pluralistic Societies</i>. Vol. 6. Comparative Theology, Islam, and Society. DeGruyter, n.d.","ieee":"G. Erdem, T. Eroglu, and S. Lebock, Eds., <i>Comparative Theology and Social Work: Exploring Theory and Praxis in Pluralistic Societies</i>, vol. 6. DeGruyter.","apa":"Erdem, G., Eroglu, T., &#38; Lebock, S. (Eds.). (n.d.). <i>Comparative Theology and Social Work: Exploring Theory and Praxis in Pluralistic Societies</i> (Vol. 6). DeGruyter.","bibtex":"@book{Erdem_Eroglu_Lebock, series={Comparative Theology, Islam, and Society}, title={Comparative Theology and Social Work: Exploring Theory and Praxis in Pluralistic Societies}, volume={6}, publisher={DeGruyter}, collection={Comparative Theology, Islam, and Society} }","mla":"Erdem, Gülbahar, et al., editors. <i>Comparative Theology and Social Work: Exploring Theory and Praxis in Pluralistic Societies</i>. DeGruyter.","short":"G. Erdem, T. Eroglu, S. Lebock, eds., Comparative Theology and Social Work: Exploring Theory and Praxis in Pluralistic Societies, DeGruyter, n.d."},"intvolume":"         6"},{"title":"An Axiomatization of the Banzhaf Index to Measure Influence in Qualitative Comparative Analysis","doi":"10.1007/s00182-026-00978-2","main_file_link":[{"open_access":"1","url":"https://link.springer.com/article/10.1007/s00182-026-00978-2#citeas"}],"date_updated":"2026-01-26T12:42:04Z","oa":"1","publisher":"Springer","volume":55,"date_created":"2026-01-26T12:30:50Z","author":[{"id":"20801","full_name":"Haake, Claus-Jochen","last_name":"Haake","first_name":"Claus-Jochen"},{"first_name":"Martin","full_name":"Schneider, Martin","id":"471","orcid":"https://orcid.org/0000-0002-6961-3716","last_name":"Schneider"}],"year":"2026","intvolume":"        55","citation":{"short":"C.-J. Haake, M. Schneider, International Journal of Game Theory 55 (2026).","mla":"Haake, Claus-Jochen, and Martin Schneider. “An Axiomatization of the Banzhaf Index to Measure Influence in Qualitative Comparative Analysis.” <i>International Journal of Game Theory</i>, vol. 55, Springer, 2026, doi:<a href=\"https://doi.org/10.1007/s00182-026-00978-2\">10.1007/s00182-026-00978-2</a>.","bibtex":"@article{Haake_Schneider_2026, title={An Axiomatization of the Banzhaf Index to Measure Influence in Qualitative Comparative Analysis}, volume={55}, DOI={<a href=\"https://doi.org/10.1007/s00182-026-00978-2\">10.1007/s00182-026-00978-2</a>}, journal={International Journal of Game Theory}, publisher={Springer}, author={Haake, Claus-Jochen and Schneider, Martin}, year={2026} }","apa":"Haake, C.-J., &#38; Schneider, M. (2026). An Axiomatization of the Banzhaf Index to Measure Influence in Qualitative Comparative Analysis. <i>International Journal of Game Theory</i>, <i>55</i>. <a href=\"https://doi.org/10.1007/s00182-026-00978-2\">https://doi.org/10.1007/s00182-026-00978-2</a>","ieee":"C.-J. Haake and M. Schneider, “An Axiomatization of the Banzhaf Index to Measure Influence in Qualitative Comparative Analysis,” <i>International Journal of Game Theory</i>, vol. 55, 2026, doi: <a href=\"https://doi.org/10.1007/s00182-026-00978-2\">10.1007/s00182-026-00978-2</a>.","chicago":"Haake, Claus-Jochen, and Martin Schneider. “An Axiomatization of the Banzhaf Index to Measure Influence in Qualitative Comparative Analysis.” <i>International Journal of Game Theory</i> 55 (2026). <a href=\"https://doi.org/10.1007/s00182-026-00978-2\">https://doi.org/10.1007/s00182-026-00978-2</a>.","ama":"Haake C-J, Schneider M. An Axiomatization of the Banzhaf Index to Measure Influence in Qualitative Comparative Analysis. <i>International Journal of Game Theory</i>. 2026;55. doi:<a href=\"https://doi.org/10.1007/s00182-026-00978-2\">10.1007/s00182-026-00978-2</a>"},"quality_controlled":"1","keyword":["Banzhaf index","axiomatization","QCA","explanatory power"],"language":[{"iso":"eng"}],"_id":"63731","department":[{"_id":"205"},{"_id":"475"},{"_id":"185"}],"user_id":"20801","abstract":[{"text":"The Banzhaf power index can be used to quantify the explanatory power of single conditions in a configurational analysis that aims at identifying whether combinations of conditions are sufficient for an outcome. The latter method is an integral part of the Qualitative Comparative Analysis (QCA) approach. It is widely used in the literature, e.g., in the field of International Management. Haake and Schneider (2023) give a rigorous description of the connection between the empirical and game theoretic modeling. To justify that the Banzhaf index is an appropriate tool to measure the influence of a condition, this paper discusses a novel axiomatization of the Banzhaf index that uses axioms that are directly linked to the QCA methodology. As a side result, we demonstrate that in our model the Banzhaf index can be reinterpreted as an average of Shapley-Shubik indices.","lang":"eng"}],"status":"public","publication":"International Journal of Game Theory","type":"journal_article"},{"publication_status":"published","publication_identifier":{"isbn":["9783658478391","9783658478407"]},"place":"Wiesbaden","year":"2026","citation":{"chicago":"Steinhausen, Julia. “„Mind the gap“: Mentoring für Frauen in der Statuspassage Studium – Promotion.” In <i>Praxishandbuch Mentoring in der Wissenschaft</i>, edited by Renate Petersen, Mechthild Budde, Pia Brocke, Gitta Doebert, and Helga Rudack. Wiesbaden: Springer Fachmedien Wiesbaden, 2026. <a href=\"https://doi.org/10.1007/978-3-658-47840-7_22\">https://doi.org/10.1007/978-3-658-47840-7_22</a>.","ieee":"J. Steinhausen, “„Mind the gap“: Mentoring für Frauen in der Statuspassage Studium – Promotion,” in <i>Praxishandbuch Mentoring in der Wissenschaft</i>, R. Petersen, M. Budde, P. Brocke, G. Doebert, and H. Rudack, Eds. Wiesbaden: Springer Fachmedien Wiesbaden, 2026.","ama":"Steinhausen J. „Mind the gap“: Mentoring für Frauen in der Statuspassage Studium – Promotion. In: Petersen R, Budde M, Brocke P, Doebert G, Rudack H, eds. <i>Praxishandbuch Mentoring in der Wissenschaft</i>. Springer Fachmedien Wiesbaden; 2026. doi:<a href=\"https://doi.org/10.1007/978-3-658-47840-7_22\">10.1007/978-3-658-47840-7_22</a>","bibtex":"@inbook{Steinhausen_2026, place={Wiesbaden}, title={„Mind the gap“: Mentoring für Frauen in der Statuspassage Studium – Promotion}, DOI={<a href=\"https://doi.org/10.1007/978-3-658-47840-7_22\">10.1007/978-3-658-47840-7_22</a>}, booktitle={Praxishandbuch Mentoring in der Wissenschaft}, publisher={Springer Fachmedien Wiesbaden}, author={Steinhausen, Julia}, editor={Petersen, Renate and Budde, Mechthild and Brocke, Pia and Doebert, Gitta and Rudack, Helga}, year={2026} }","mla":"Steinhausen, Julia. “„Mind the gap“: Mentoring für Frauen in der Statuspassage Studium – Promotion.” <i>Praxishandbuch Mentoring in der Wissenschaft</i>, edited by Renate Petersen et al., Springer Fachmedien Wiesbaden, 2026, doi:<a href=\"https://doi.org/10.1007/978-3-658-47840-7_22\">10.1007/978-3-658-47840-7_22</a>.","short":"J. Steinhausen, in: R. Petersen, M. Budde, P. Brocke, G. Doebert, H. Rudack (Eds.), Praxishandbuch Mentoring in der Wissenschaft, Springer Fachmedien Wiesbaden, Wiesbaden, 2026.","apa":"Steinhausen, J. (2026). „Mind the gap“: Mentoring für Frauen in der Statuspassage Studium – Promotion. In R. Petersen, M. Budde, P. Brocke, G. Doebert, &#38; H. Rudack (Eds.), <i>Praxishandbuch Mentoring in der Wissenschaft</i>. Springer Fachmedien Wiesbaden. <a href=\"https://doi.org/10.1007/978-3-658-47840-7_22\">https://doi.org/10.1007/978-3-658-47840-7_22</a>"},"publisher":"Springer Fachmedien Wiesbaden","date_updated":"2026-01-27T08:40:42Z","date_created":"2026-01-27T08:30:07Z","author":[{"full_name":"Steinhausen, Julia","last_name":"Steinhausen","first_name":"Julia"}],"title":"„Mind the gap“: Mentoring für Frauen in der Statuspassage Studium – Promotion","doi":"10.1007/978-3-658-47840-7_22","type":"book_chapter","publication":"Praxishandbuch Mentoring in der Wissenschaft","editor":[{"first_name":"Renate","last_name":"Petersen","full_name":"Petersen, Renate"},{"first_name":"Mechthild","full_name":"Budde, Mechthild","last_name":"Budde"},{"full_name":"Brocke, Pia","last_name":"Brocke","first_name":"Pia"},{"first_name":"Gitta","last_name":"Doebert","full_name":"Doebert, Gitta"},{"first_name":"Helga","full_name":"Rudack, Helga","last_name":"Rudack"}],"status":"public","_id":"63752","user_id":"5833","keyword":["Mentoring","Frauen","Wissenschaft"],"language":[{"iso":"ger"}]},{"status":"public","type":"journal_article","publication":"kunststoffland NRW report","language":[{"iso":"eng"}],"_id":"63784","user_id":"44116","department":[{"_id":"9"},{"_id":"367"},{"_id":"321"}],"year":"2026","citation":{"ama":"Trienens D, Brüning F, Schöppner V. Wo Forschung, KI und Praxis aufeinandertreffen. <i>kunststoffland NRW report</i>. 2026;03-2025.","chicago":"Trienens, Dorte, Florian Brüning, and Volker Schöppner. “Wo Forschung, KI Und Praxis Aufeinandertreffen.” <i>Kunststoffland NRW Report</i> 03–2025 (2026).","ieee":"D. Trienens, F. Brüning, and V. Schöppner, “Wo Forschung, KI und Praxis aufeinandertreffen,” <i>kunststoffland NRW report</i>, vol. 03–2025, 2026.","apa":"Trienens, D., Brüning, F., &#38; Schöppner, V. (2026). Wo Forschung, KI und Praxis aufeinandertreffen. <i>Kunststoffland NRW Report</i>, <i>03–2025</i>.","mla":"Trienens, Dorte, et al. “Wo Forschung, KI Und Praxis Aufeinandertreffen.” <i>Kunststoffland NRW Report</i>, vol. 03–2025, 2026.","bibtex":"@article{Trienens_Brüning_Schöppner_2026, title={Wo Forschung, KI und Praxis aufeinandertreffen}, volume={03–2025}, journal={kunststoffland NRW report}, author={Trienens, Dorte and Brüning, Florian and Schöppner, Volker}, year={2026} }","short":"D. Trienens, F. Brüning, V. Schöppner, Kunststoffland NRW Report 03–2025 (2026)."},"title":"Wo Forschung, KI und Praxis aufeinandertreffen","date_updated":"2026-01-28T10:09:53Z","author":[{"first_name":"Dorte","last_name":"Trienens","id":"44116","full_name":"Trienens, Dorte"},{"first_name":"Florian","last_name":"Brüning","full_name":"Brüning, Florian","id":"72920"},{"first_name":"Volker","last_name":"Schöppner","full_name":"Schöppner, Volker","id":"20530"}],"date_created":"2026-01-28T10:09:30Z","volume":"03-2025"},{"publication":"Bezugsnotwendigkeiten in der Grundschule. Pädagogik und Fachdidaktik in der Grundschulbildung","type":"book_chapter","editor":[{"first_name":"Markus","last_name":"Peschel","full_name":"Peschel, Markus"},{"full_name":"Kihm, Pascal","last_name":"Kihm","first_name":"Pascal"},{"last_name":"Platz","full_name":"Platz, Melanie","first_name":"Melanie"},{"last_name":"Gebauer","full_name":"Gebauer, Lea Marie","first_name":"Lea Marie"}],"status":"public","_id":"63791","department":[{"_id":"458"}],"user_id":"26718","language":[{"iso":"ger"}],"publication_identifier":{"isbn":["978-3-7815-2751-5"]},"publication_status":"published","edition":"1","place":"Bad Heilbrunn","year":"2026","page":"143-154","citation":{"apa":"Schlesier, J., Rank, A., Then, D., Pohlmann-Rother, S., Herding, J., Büker, P., &#38; Carle, U. (2026). Transitionen von Kindern mit erschwerten Lern- und Teilhabevoraussetzungen begleiten. In M. Peschel, P. Kihm, M. Platz, &#38; L. M. Gebauer (Eds.), <i>Bezugsnotwendigkeiten in der Grundschule. Pädagogik und Fachdidaktik in der Grundschulbildung</i> (1st ed., pp. 143–154). Julius Klinkhardt.","bibtex":"@inbook{Schlesier_Rank_Then_Pohlmann-Rother_Herding_Büker_Carle_2026, place={Bad Heilbrunn}, edition={1}, title={Transitionen von Kindern mit erschwerten Lern- und Teilhabevoraussetzungen begleiten}, booktitle={Bezugsnotwendigkeiten in der Grundschule. Pädagogik und Fachdidaktik in der Grundschulbildung}, publisher={Julius Klinkhardt}, author={Schlesier, Juliane and Rank, Astrid and Then, Daniel and Pohlmann-Rother, Sanna and Herding, Jana and Büker, Petra and Carle, Ursula}, editor={Peschel, Markus and Kihm, Pascal and Platz, Melanie and Gebauer, Lea Marie}, year={2026}, pages={143–154} }","mla":"Schlesier, Juliane, et al. “Transitionen von Kindern mit erschwerten Lern- und Teilhabevoraussetzungen begleiten.” <i>Bezugsnotwendigkeiten in der Grundschule. Pädagogik und Fachdidaktik in der Grundschulbildung</i>, edited by Markus Peschel et al., 1st ed., Julius Klinkhardt, 2026, pp. 143–54.","short":"J. Schlesier, A. Rank, D. Then, S. Pohlmann-Rother, J. Herding, P. Büker, U. Carle, in: M. Peschel, P. Kihm, M. Platz, L.M. Gebauer (Eds.), Bezugsnotwendigkeiten in der Grundschule. Pädagogik und Fachdidaktik in der Grundschulbildung, 1st ed., Julius Klinkhardt, Bad Heilbrunn, 2026, pp. 143–154.","ama":"Schlesier J, Rank A, Then D, et al. Transitionen von Kindern mit erschwerten Lern- und Teilhabevoraussetzungen begleiten. In: Peschel M, Kihm P, Platz M, Gebauer LM, eds. <i>Bezugsnotwendigkeiten in der Grundschule. Pädagogik und Fachdidaktik in der Grundschulbildung</i>. 1st ed. Julius Klinkhardt; 2026:143-154.","chicago":"Schlesier, Juliane, Astrid Rank, Daniel Then, Sanna Pohlmann-Rother, Jana Herding, Petra Büker, and Ursula Carle. “Transitionen von Kindern mit erschwerten Lern- und Teilhabevoraussetzungen begleiten.” In <i>Bezugsnotwendigkeiten in der Grundschule. Pädagogik und Fachdidaktik in der Grundschulbildung</i>, edited by Markus Peschel, Pascal Kihm, Melanie Platz, and Lea Marie Gebauer, 1st ed., 143–54. Bad Heilbrunn: Julius Klinkhardt, 2026.","ieee":"J. Schlesier <i>et al.</i>, “Transitionen von Kindern mit erschwerten Lern- und Teilhabevoraussetzungen begleiten,” in <i>Bezugsnotwendigkeiten in der Grundschule. Pädagogik und Fachdidaktik in der Grundschulbildung</i>, 1st ed., M. Peschel, P. Kihm, M. Platz, and L. M. Gebauer, Eds. Bad Heilbrunn: Julius Klinkhardt, 2026, pp. 143–154."},"date_updated":"2026-01-28T14:42:41Z","publisher":"Julius Klinkhardt","author":[{"first_name":"Juliane","last_name":"Schlesier","full_name":"Schlesier, Juliane"},{"full_name":"Rank, Astrid","last_name":"Rank","first_name":"Astrid"},{"first_name":"Daniel","last_name":"Then","full_name":"Then, Daniel"},{"first_name":"Sanna","last_name":"Pohlmann-Rother","full_name":"Pohlmann-Rother, Sanna"},{"last_name":"Herding","full_name":"Herding, Jana","id":"34404","first_name":"Jana"},{"last_name":"Büker","full_name":"Büker, Petra","id":"21978","first_name":"Petra"},{"full_name":"Carle, Ursula","last_name":"Carle","first_name":"Ursula"}],"date_created":"2026-01-28T14:41:43Z","title":"Transitionen von Kindern mit erschwerten Lern- und Teilhabevoraussetzungen begleiten"},{"quality_controlled":"1","publication_identifier":{"eissn":["2199-8825"]},"publication_status":"published","issue":"8","year":"2026","intvolume":"        12","page":"97-111","citation":{"ama":"Vernholz M, Temmen K. Motive Ingenieurstudierender für den Besuch (fach-)didaktischer Lehrveranstaltungen im Projekt EduTech Net OWL. <i>die hochschullehre</i>. 2026;12(8):97-111. doi:<a href=\"https://doi.org/10.3278/HSL2608W\">10.3278/HSL2608W</a>","ieee":"M. Vernholz and K. Temmen, “Motive Ingenieurstudierender für den Besuch (fach-)didaktischer Lehrveranstaltungen im Projekt EduTech Net OWL,” <i>die hochschullehre</i>, vol. 12, no. 8, pp. 97–111, 2026, doi: <a href=\"https://doi.org/10.3278/HSL2608W\">10.3278/HSL2608W</a>.","chicago":"Vernholz, Mats, and Katrin Temmen. “Motive Ingenieurstudierender für den Besuch (fach-)didaktischer Lehrveranstaltungen im Projekt EduTech Net OWL.” <i>die hochschullehre</i> 12, no. 8 (2026): 97–111. <a href=\"https://doi.org/10.3278/HSL2608W\">https://doi.org/10.3278/HSL2608W</a>.","apa":"Vernholz, M., &#38; Temmen, K. (2026). Motive Ingenieurstudierender für den Besuch (fach-)didaktischer Lehrveranstaltungen im Projekt EduTech Net OWL. <i>die hochschullehre</i>, <i>12</i>(8), 97–111. <a href=\"https://doi.org/10.3278/HSL2608W\">https://doi.org/10.3278/HSL2608W</a>","mla":"Vernholz, Mats, and Katrin Temmen. “Motive Ingenieurstudierender für den Besuch (fach-)didaktischer Lehrveranstaltungen im Projekt EduTech Net OWL.” <i>die hochschullehre</i>, vol. 12, no. 8, wbv Publikation, 2026, pp. 97–111, doi:<a href=\"https://doi.org/10.3278/HSL2608W\">10.3278/HSL2608W</a>.","short":"M. Vernholz, K. Temmen, die hochschullehre 12 (2026) 97–111.","bibtex":"@article{Vernholz_Temmen_2026, title={Motive Ingenieurstudierender für den Besuch (fach-)didaktischer Lehrveranstaltungen im Projekt EduTech Net OWL}, volume={12}, DOI={<a href=\"https://doi.org/10.3278/HSL2608W\">10.3278/HSL2608W</a>}, number={8}, journal={die hochschullehre}, publisher={wbv Publikation}, author={Vernholz, Mats and Temmen, Katrin}, year={2026}, pages={97–111} }"},"date_updated":"2026-01-28T15:17:48Z","publisher":"wbv Publikation","volume":12,"author":[{"first_name":"Mats","last_name":"Vernholz","orcid":"0000-0001-5175-357X","full_name":"Vernholz, Mats","id":"76955"},{"first_name":"Katrin","last_name":"Temmen","full_name":"Temmen, Katrin","id":"30086"}],"date_created":"2026-01-28T15:17:16Z","title":"Motive Ingenieurstudierender für den Besuch (fach-)didaktischer Lehrveranstaltungen im Projekt EduTech Net OWL","doi":"10.3278/HSL2608W","publication":"die hochschullehre","type":"journal_article","status":"public","_id":"63798","department":[{"_id":"300"}],"user_id":"76955","language":[{"iso":"ger"}]},{"ddc":["000"],"file_date_updated":"2025-10-06T17:04:28Z","language":[{"iso":"eng"}],"_id":"61528","department":[{"_id":"277"}],"user_id":"72850","status":"public","file":[{"date_created":"2025-10-06T17:04:28Z","creator":"schryen","date_updated":"2025-10-06T17:04:28Z","access_level":"closed","file_id":"61529","file_name":"Using AI to measure IS progress_HICSS2026_Final091425.pdf","file_size":430613,"content_type":"application/pdf","relation":"main_file","success":1}],"publication":"Proceedings of the 59th Hawaii International Conference on System Sciences","type":"conference","title":"Using Google’s Natural Language Model to Measure Growth of Knowledge in Information Systems Research","date_updated":"2026-01-31T15:24:01Z","date_created":"2025-10-06T17:00:46Z","author":[{"last_name":"Hassan","full_name":"Hassan, Nik","first_name":"Nik"},{"first_name":"Mauricio","last_name":"Marrone","full_name":"Marrone, Mauricio"},{"first_name":"Guido","last_name":"Schryen","full_name":"Schryen, Guido","id":"72850"},{"first_name":"Jack","full_name":"Yang, Jack","last_name":"Yang"}],"year":"2026","place":"Lahaina, Hawaii, USA","citation":{"apa":"Hassan, N., Marrone, M., Schryen, G., &#38; Yang, J. (2026). Using Google’s Natural Language Model to Measure Growth of Knowledge in Information Systems Research. <i>Proceedings of the 59th Hawaii International Conference on System Sciences</i>.","mla":"Hassan, Nik, et al. “Using Google’s Natural Language Model to Measure Growth of Knowledge in Information Systems Research.” <i>Proceedings of the 59th Hawaii International Conference on System Sciences</i>, 2026.","bibtex":"@inproceedings{Hassan_Marrone_Schryen_Yang_2026, place={Lahaina, Hawaii, USA}, title={Using Google’s Natural Language Model to Measure Growth of Knowledge in Information Systems Research}, booktitle={Proceedings of the 59th Hawaii International Conference on System Sciences}, author={Hassan, Nik and Marrone, Mauricio and Schryen, Guido and Yang, Jack}, year={2026} }","short":"N. Hassan, M. Marrone, G. Schryen, J. Yang, in: Proceedings of the 59th Hawaii International Conference on System Sciences, Lahaina, Hawaii, USA, 2026.","chicago":"Hassan, Nik, Mauricio Marrone, Guido Schryen, and Jack Yang. “Using Google’s Natural Language Model to Measure Growth of Knowledge in Information Systems Research.” In <i>Proceedings of the 59th Hawaii International Conference on System Sciences</i>. Lahaina, Hawaii, USA, 2026.","ieee":"N. Hassan, M. Marrone, G. Schryen, and J. Yang, “Using Google’s Natural Language Model to Measure Growth of Knowledge in Information Systems Research,” 2026.","ama":"Hassan N, Marrone M, Schryen G, Yang J. Using Google’s Natural Language Model to Measure Growth of Knowledge in Information Systems Research. In: <i>Proceedings of the 59th Hawaii International Conference on System Sciences</i>. ; 2026."},"has_accepted_license":"1"},{"citation":{"ama":"Itner D, Dreiling D, Gravenkamp H, Henning B, Birk C. A modified Levenberg–Marquardt method for estimating the elastic material parameters of polymer waveguides using residuals between autocorrelated frequency responses. <i>Mechanical Systems and Signal Processing</i>. 2026;247:113904. doi:<a href=\"https://doi.org/10.1016/j.ymssp.2026.113904\">https://doi.org/10.1016/j.ymssp.2026.113904</a>","ieee":"D. Itner, D. Dreiling, H. Gravenkamp, B. Henning, and C. Birk, “A modified Levenberg–Marquardt method for estimating the elastic material parameters of polymer waveguides using residuals between autocorrelated frequency responses,” <i>Mechanical Systems and Signal Processing</i>, vol. 247, p. 113904, 2026, doi: <a href=\"https://doi.org/10.1016/j.ymssp.2026.113904\">https://doi.org/10.1016/j.ymssp.2026.113904</a>.","chicago":"Itner, Dominik, Dmitrij Dreiling, Hauke Gravenkamp, Bernd Henning, and Carolin Birk. “A Modified Levenberg–Marquardt Method for Estimating the Elastic Material Parameters of Polymer Waveguides Using Residuals between Autocorrelated Frequency Responses.” <i>Mechanical Systems and Signal Processing</i> 247 (2026): 113904. <a href=\"https://doi.org/10.1016/j.ymssp.2026.113904\">https://doi.org/10.1016/j.ymssp.2026.113904</a>.","mla":"Itner, Dominik, et al. “A Modified Levenberg–Marquardt Method for Estimating the Elastic Material Parameters of Polymer Waveguides Using Residuals between Autocorrelated Frequency Responses.” <i>Mechanical Systems and Signal Processing</i>, vol. 247, 2026, p. 113904, doi:<a href=\"https://doi.org/10.1016/j.ymssp.2026.113904\">https://doi.org/10.1016/j.ymssp.2026.113904</a>.","short":"D. Itner, D. Dreiling, H. Gravenkamp, B. Henning, C. Birk, Mechanical Systems and Signal Processing 247 (2026) 113904.","bibtex":"@article{Itner_Dreiling_Gravenkamp_Henning_Birk_2026, title={A modified Levenberg–Marquardt method for estimating the elastic material parameters of polymer waveguides using residuals between autocorrelated frequency responses}, volume={247}, DOI={<a href=\"https://doi.org/10.1016/j.ymssp.2026.113904\">https://doi.org/10.1016/j.ymssp.2026.113904</a>}, journal={Mechanical Systems and Signal Processing}, author={Itner, Dominik and Dreiling, Dmitrij and Gravenkamp, Hauke and Henning, Bernd and Birk, Carolin}, year={2026}, pages={113904} }","apa":"Itner, D., Dreiling, D., Gravenkamp, H., Henning, B., &#38; Birk, C. (2026). A modified Levenberg–Marquardt method for estimating the elastic material parameters of polymer waveguides using residuals between autocorrelated frequency responses. <i>Mechanical Systems and Signal Processing</i>, <i>247</i>, 113904. <a href=\"https://doi.org/10.1016/j.ymssp.2026.113904\">https://doi.org/10.1016/j.ymssp.2026.113904</a>"},"page":"113904","intvolume":"       247","publication_status":"published","publication_identifier":{"issn":["0888-3270"]},"main_file_link":[{"open_access":"1","url":"https://www.sciencedirect.com/science/article/pii/S0888327026000610/pdfft?md5=16e8493b44527f4ab0a6d13f634a01c3&pid=1-s2.0-S0888327026000610-main.pdf"}],"doi":"https://doi.org/10.1016/j.ymssp.2026.113904","author":[{"first_name":"Dominik","last_name":"Itner","full_name":"Itner, Dominik"},{"full_name":"Dreiling, Dmitrij","id":"32616","last_name":"Dreiling","first_name":"Dmitrij"},{"first_name":"Hauke","last_name":"Gravenkamp","full_name":"Gravenkamp, Hauke"},{"first_name":"Bernd","full_name":"Henning, Bernd","id":"213","last_name":"Henning"},{"full_name":"Birk, Carolin","last_name":"Birk","first_name":"Carolin"}],"volume":247,"oa":"1","date_updated":"2026-02-02T12:44:47Z","status":"public","type":"journal_article","user_id":"32616","department":[{"_id":"49"}],"project":[{"_id":"89","name":"Vollständige Bestimmung der akustischen Materialparameter von Polymeren"}],"_id":"63800","year":"2026","title":"A modified Levenberg–Marquardt method for estimating the elastic material parameters of polymer waveguides using residuals between autocorrelated frequency responses","date_created":"2026-01-29T08:53:42Z","abstract":[{"lang":"eng","text":"In this contribution, we address the estimation of the frequency-dependent elastic parameters of polymers in the ultrasound range, which is formulated as an inverse problem. This inverse problem is implemented as a nonlinear regression-type optimization problem, in which the simulation signals are fitted to the measurement signals. These signals consist of displacement responses in waveguides, focusing on hollow cylindrical geometries to enhance the simulation efficiency. To accelerate the optimization and reduce the number of model evaluations and wait times, we propose two novel methods. First, we introduce an adaptation of the Levenberg–Marquardt method derived from a geometrical interpretation of the least-squares optimization problem. Second, we introduce an improved objective function based on the autocorrelated envelopes of the measurement and simulation signals. Given that this study primarily relies on simulation data to quantify optimization convergence, we aggregate the expected ranges of realistic material parameters and derive their distributions to ensure the reproducibility of optimizations with proper measurements. We demonstrate the effectiveness of our objective function modification and step adaptation for various materials with isotropic material symmetry by comparing them with the Broyden–Fletcher–Goldfarb–Shanno method. In all cases, our method reduces the total number of model evaluations, thereby shortening the time to identify the material parameters."}],"publication":"Mechanical Systems and Signal Processing","language":[{"iso":"eng"}],"keyword":["Material parameter estimation","Waveguide","Nonlinear optimization","Inverse problem","Least squares"]},{"year":"2026","issue":"2","quality_controlled":"1","title":"Approximating Incoherent Monochromatic Light Sources in FDTD Simulations","date_created":"2026-02-02T07:18:03Z","publisher":"MDPI AG","abstract":[{"text":"Light-emitting diodes (LEDs) are becoming increasingly important across various sectors of the lighting industry and are being used more frequently. In the field of symbolic projection, research is increasingly focusing on implementing light modulation using energy-efficient, incoherent LEDs rather than lasers. Since light modulation in micro- and nano-optics is typically achieved through phase modulation, Finite-Difference Time-Domain (FDTD) simulations are employed for analysis. The objective of this article is to investigate different approaches for approximating incoherent monochromatic light sources within FDTD simulations. To this end, two approaches based on dipole sources are considered, as well as a method involving plane waves with modulated wavefronts based on Cosine–Fourier functions and a method based on the superposition of Gaussian beams. These methods are evaluated in terms of their accuracy using a two-dimensional double-slit configuration and are compared against a fully incoherent analytical reference.","lang":"eng"}],"publication":"Photonics","language":[{"iso":"eng"}],"keyword":["tet_topic_opticalantenna","tet_topic_numerics","tet_topic_meta"],"citation":{"bibtex":"@article{Metzner_Potthoff_Zentgraf_Förstner_2026, title={Approximating Incoherent Monochromatic Light Sources in FDTD Simulations}, volume={13}, DOI={<a href=\"https://doi.org/10.3390/photonics13020128\">10.3390/photonics13020128</a>}, number={2128}, journal={Photonics}, publisher={MDPI AG}, author={Metzner, Dominik and Potthoff, Jens and Zentgraf, Thomas and Förstner, Jens}, year={2026} }","mla":"Metzner, Dominik, et al. “Approximating Incoherent Monochromatic Light Sources in FDTD Simulations.” <i>Photonics</i>, vol. 13, no. 2, 128, MDPI AG, 2026, doi:<a href=\"https://doi.org/10.3390/photonics13020128\">10.3390/photonics13020128</a>.","short":"D. Metzner, J. Potthoff, T. Zentgraf, J. Förstner, Photonics 13 (2026).","apa":"Metzner, D., Potthoff, J., Zentgraf, T., &#38; Förstner, J. (2026). Approximating Incoherent Monochromatic Light Sources in FDTD Simulations. <i>Photonics</i>, <i>13</i>(2), Article 128. <a href=\"https://doi.org/10.3390/photonics13020128\">https://doi.org/10.3390/photonics13020128</a>","ama":"Metzner D, Potthoff J, Zentgraf T, Förstner J. Approximating Incoherent Monochromatic Light Sources in FDTD Simulations. <i>Photonics</i>. 2026;13(2). doi:<a href=\"https://doi.org/10.3390/photonics13020128\">10.3390/photonics13020128</a>","ieee":"D. Metzner, J. Potthoff, T. Zentgraf, and J. Förstner, “Approximating Incoherent Monochromatic Light Sources in FDTD Simulations,” <i>Photonics</i>, vol. 13, no. 2, Art. no. 128, 2026, doi: <a href=\"https://doi.org/10.3390/photonics13020128\">10.3390/photonics13020128</a>.","chicago":"Metzner, Dominik, Jens Potthoff, Thomas Zentgraf, and Jens Förstner. “Approximating Incoherent Monochromatic Light Sources in FDTD Simulations.” <i>Photonics</i> 13, no. 2 (2026). <a href=\"https://doi.org/10.3390/photonics13020128\">https://doi.org/10.3390/photonics13020128</a>."},"intvolume":"        13","publication_status":"published","publication_identifier":{"issn":["2304-6732"]},"main_file_link":[{"open_access":"1","url":"https://www.mdpi.com/2304-6732/13/2/128"}],"doi":"10.3390/photonics13020128","author":[{"full_name":"Metzner, Dominik","last_name":"Metzner","first_name":"Dominik"},{"first_name":"Jens","full_name":"Potthoff, Jens","last_name":"Potthoff"},{"id":"30525","full_name":"Zentgraf, Thomas","orcid":"0000-0002-8662-1101","last_name":"Zentgraf","first_name":"Thomas"},{"first_name":"Jens","orcid":"0000-0001-7059-9862","last_name":"Förstner","full_name":"Förstner, Jens","id":"158"}],"volume":13,"oa":"1","date_updated":"2026-02-02T21:38:34Z","status":"public","type":"journal_article","article_number":"128","article_type":"original","user_id":"158","department":[{"_id":"15"},{"_id":"230"},{"_id":"289"},{"_id":"623"},{"_id":"61"}],"_id":"63827"},{"date_updated":"2026-02-03T10:59:36Z","oa":"1","author":[{"id":"27419","full_name":"Hannebohm, Ronja","last_name":"Hannebohm","first_name":"Ronja"}],"volume":12,"main_file_link":[{"url":"https://www.wbv.de/shop/Paderborner-Beitraege-2025-HSLT2601W","open_access":"1"}],"doi":"10.3278/HSL2606W","publication_status":"published","publication_identifier":{"issn":["2199–8825"]},"citation":{"chicago":"Hannebohm, Ronja. “Potenziale der Portfolioarbeit für den Aufbau vernetzten Wissens im Bachelorstudium: Eine Explorationsstudie im Studienfach Komparatistik/Vergleichende Literatur- und Kulturwissenschaft.” <i>die hochschullehre: Interdisziplinäre Zeitschrift für Studium und Lehre</i> 12 (2026): 65–80. <a href=\"https://doi.org/10.3278/HSL2606W\">https://doi.org/10.3278/HSL2606W</a>.","ieee":"R. Hannebohm, “Potenziale der Portfolioarbeit für den Aufbau vernetzten Wissens im Bachelorstudium: Eine Explorationsstudie im Studienfach Komparatistik/Vergleichende Literatur- und Kulturwissenschaft,” <i>die hochschullehre: Interdisziplinäre Zeitschrift für Studium und Lehre</i>, vol. 12, pp. 65–80, 2026, doi: <a href=\"https://doi.org/10.3278/HSL2606W\">10.3278/HSL2606W</a>.","ama":"Hannebohm R. Potenziale der Portfolioarbeit für den Aufbau vernetzten Wissens im Bachelorstudium: Eine Explorationsstudie im Studienfach Komparatistik/Vergleichende Literatur- und Kulturwissenschaft. <i>die hochschullehre: Interdisziplinäre Zeitschrift für Studium und Lehre</i>. 2026;12:65-80. doi:<a href=\"https://doi.org/10.3278/HSL2606W\">10.3278/HSL2606W</a>","apa":"Hannebohm, R. (2026). Potenziale der Portfolioarbeit für den Aufbau vernetzten Wissens im Bachelorstudium: Eine Explorationsstudie im Studienfach Komparatistik/Vergleichende Literatur- und Kulturwissenschaft. <i>die hochschullehre: Interdisziplinäre Zeitschrift für Studium und Lehre</i>, <i>12</i>, 65–80. <a href=\"https://doi.org/10.3278/HSL2606W\">https://doi.org/10.3278/HSL2606W</a>","bibtex":"@article{Hannebohm_2026, title={Potenziale der Portfolioarbeit für den Aufbau vernetzten Wissens im Bachelorstudium: Eine Explorationsstudie im Studienfach Komparatistik/Vergleichende Literatur- und Kulturwissenschaft}, volume={12}, DOI={<a href=\"https://doi.org/10.3278/HSL2606W\">10.3278/HSL2606W</a>}, journal={die hochschullehre: Interdisziplinäre Zeitschrift für Studium und Lehre}, publisher={wbv}, author={Hannebohm, Ronja}, year={2026}, pages={65–80} }","short":"R. Hannebohm, die hochschullehre: Interdisziplinäre Zeitschrift für Studium und Lehre 12 (2026) 65–80.","mla":"Hannebohm, Ronja. “Potenziale der Portfolioarbeit für den Aufbau vernetzten Wissens im Bachelorstudium: Eine Explorationsstudie im Studienfach Komparatistik/Vergleichende Literatur- und Kulturwissenschaft.” <i>die hochschullehre: Interdisziplinäre Zeitschrift für Studium und Lehre</i>, vol. 12, wbv, 2026, pp. 65–80, doi:<a href=\"https://doi.org/10.3278/HSL2606W\">10.3278/HSL2606W</a>."},"page":"65-80","intvolume":"        12","_id":"61463","user_id":"27419","department":[{"_id":"116"}],"article_type":"original","type":"journal_article","status":"public","publisher":"wbv","date_created":"2025-09-29T12:34:48Z","title":"Potenziale der Portfolioarbeit für den Aufbau vernetzten Wissens im Bachelorstudium: Eine Explorationsstudie im Studienfach Komparatistik/Vergleichende Literatur- und Kulturwissenschaft","quality_controlled":"1","year":"2026","keyword":["Portfolioarbeit","portfolio work","vernetztes Wissen","knowledge networks","Beobachtung","naturalistic observation","Inhaltsanalyse","content analysis"],"language":[{"iso":"ger"}],"publication":"die hochschullehre: Interdisziplinäre Zeitschrift für Studium und Lehre","abstract":[{"text":"Vernetztes Wissen ist ein zentrales Lernziel des Hochschulstudiums, insbesondere im interdisziplinär angelegten Studienfach Komparatistik. Um den Aufbau vernetzten Wissens bei Bachelorstudierenden der Komparatistik zu unterstützen, ist in diesem Projekt Portfolioarbeit eingesetzt worden, die als Methode selbsttätigen und selbstreflexiven Lernens geeignet erscheint, zur Auseinandersetzung mit Lerninhalten zu motivieren und zur Kompetenzentwicklung der Studierenden beizutragen. Mittels unstrukturierter Beobachtungen der Portfolioarbeit im Seminar sind inhaltliche Effekte und methodische Entwicklungen erfasst worden. Anhand anteilig quantitativer, überwiegend qualitativer Inhaltsanalysen der Portfolios sind konkrete Vernetzungen zwischen Lerninhalten ermittelt worden. Die Explorationsstudie zeigt veränderte Perspektiven und geweckte Interessen bei den Studierenden durch die Portfolioarbeit sowie vielfältige Kontextualisierungen, Vergleiche und Verknüpfungen in den Portfolios auf und bietet hierdurch einen möglichen Ansatzpunkt für strukturelle Empfehlungen für das Studienfach Komparatistik.","lang":"ger"},{"lang":"eng","text":"Knowledge networks are a central learning objective in higher education, especially in the inherently interdisciplinary discipline of comparative literary and cultural studies. To support the development of knowledge networks with undergraduate students of comparative literary and cultural studies, this project utilized portfolio work as a method of self-actuating and self-reflective learning suitable for motivating examinations of learning contents and contributing to students’ skill development. Using naturalistic observations of the portfolio work within the seminar, effects and developments were recorded. With partly quantitative, predominantly qualitative content analyses of the portfolios, concrete connections between learning contents were determined. The explorative study shows changed perspectives and peaked interests of the students because of portfolio work as well as diverse contextualisations, comparisons and connections in the portfolios, thus offering a possible starting point for structural recommendations for the discipline of comparative literary and cultural studies."}]}]