[{"citation":{"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>","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>.","short":"D. Itner, D. Dreiling, H. Gravenkamp, B. Henning, C. Birk, Mechanical Systems and Signal Processing 247 (2026) 113904.","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>.","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>","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} }"},"project":[{"name":"Vollständige Bestimmung der akustischen Materialparameter von Polymeren","_id":"89"}],"oa":"1","status":"public","page":"113904","_id":"63800","user_id":"32616","volume":247,"publication":"Mechanical Systems and Signal Processing","abstract":[{"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.","lang":"eng"}],"date_created":"2026-01-29T08:53:42Z","keyword":["Material parameter estimation","Waveguide","Nonlinear optimization","Inverse problem","Least squares"],"type":"journal_article","department":[{"_id":"49"}],"title":"A modified Levenberg–Marquardt method for estimating the elastic material parameters of polymer waveguides using residuals between autocorrelated frequency responses","year":"2026","publication_identifier":{"issn":["0888-3270"]},"author":[{"full_name":"Itner, Dominik","last_name":"Itner","first_name":"Dominik"},{"id":"32616","first_name":"Dmitrij","last_name":"Dreiling","full_name":"Dreiling, Dmitrij"},{"full_name":"Gravenkamp, Hauke","last_name":"Gravenkamp","first_name":"Hauke"},{"full_name":"Henning, Bernd","first_name":"Bernd","last_name":"Henning","id":"213"},{"last_name":"Birk","first_name":"Carolin","full_name":"Birk, Carolin"}],"publication_status":"published","date_updated":"2026-02-02T12:44:47Z","intvolume":"       247","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"}],"language":[{"iso":"eng"}],"doi":"https://doi.org/10.1016/j.ymssp.2026.113904"},{"publication":"Photonics","issue":"2","abstract":[{"lang":"eng","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."}],"date_created":"2026-02-02T07:18:03Z","keyword":["tet_topic_opticalantenna","tet_topic_numerics","tet_topic_meta"],"type":"journal_article","department":[{"_id":"15"},{"_id":"230"},{"_id":"289"},{"_id":"623"},{"_id":"61"}],"title":"Approximating Incoherent Monochromatic Light Sources in FDTD Simulations","year":"2026","publication_identifier":{"issn":["2304-6732"]},"author":[{"last_name":"Metzner","first_name":"Dominik","full_name":"Metzner, Dominik"},{"first_name":"Jens","last_name":"Potthoff","full_name":"Potthoff, Jens"},{"orcid":"0000-0002-8662-1101","first_name":"Thomas","last_name":"Zentgraf","full_name":"Zentgraf, Thomas","id":"30525"},{"first_name":"Jens","last_name":"Förstner","orcid":"0000-0001-7059-9862","full_name":"Förstner, Jens","id":"158"}],"date_updated":"2026-02-02T21:38:34Z","publication_status":"published","intvolume":"        13","article_type":"original","main_file_link":[{"open_access":"1","url":"https://www.mdpi.com/2304-6732/13/2/128"}],"article_number":"128","language":[{"iso":"eng"}],"doi":"10.3390/photonics13020128","citation":{"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>.","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} }","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>.","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>","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>.","short":"D. Metzner, J. Potthoff, T. Zentgraf, J. Förstner, Photonics 13 (2026)."},"quality_controlled":"1","oa":"1","status":"public","_id":"63827","publisher":"MDPI AG","user_id":"158","volume":13},{"user_id":"117185","doi":"10.1007/978-3-032-08887-1","volume":16144,"editor":[{"full_name":"Hogan, Aidan","last_name":"Hogan","first_name":"Aidan"},{"full_name":"Satoh, Ken","last_name":"Satoh","first_name":"Ken"},{"first_name":"Hasan","last_name":"Dag","full_name":"Dag, Hasan"},{"id":"104470","full_name":"Turhan, Anni-Yasmin","first_name":"Anni-Yasmin","last_name":"Turhan"},{"full_name":"Roman, Dumitru","last_name":"Roman","first_name":"Dumitru"},{"full_name":"Soylu, Ahmet","last_name":"Soylu","first_name":"Ahmet"}],"publisher":"Springer","_id":"63860","language":[{"iso":"eng"}],"series_title":"Lecture Notes in Computer Science","date_updated":"2026-02-04T07:13:38Z","intvolume":"     16144","title":"Rules and Reasoning - 9th International Joint Conference, RuleML+RR 2025, Istanbul, Turkey, September 22-24, 2025, Proceedings","status":"public","year":"2026","publication_identifier":{"isbn":["978-3-032-08886-4"]},"type":"conference_editor","date_created":"2026-02-04T07:12:48Z","citation":{"apa":"Hogan, A., Satoh, K., Dag, H., Turhan, A.-Y., Roman, D., &#38; Soylu, A. (Eds.). (2026). <i>Rules and Reasoning - 9th International Joint Conference, RuleML+RR 2025, Istanbul, Turkey, September 22-24, 2025, Proceedings</i> (Vol. 16144). Springer. <a href=\"https://doi.org/10.1007/978-3-032-08887-1\">https://doi.org/10.1007/978-3-032-08887-1</a>","ieee":"A. Hogan, K. Satoh, H. Dag, A.-Y. Turhan, D. Roman, and A. Soylu, Eds., <i>Rules and Reasoning - 9th International Joint Conference, RuleML+RR 2025, Istanbul, Turkey, September 22-24, 2025, Proceedings</i>, vol. 16144. Springer, 2026.","chicago":"Hogan, Aidan, Ken Satoh, Hasan Dag, Anni-Yasmin Turhan, Dumitru Roman, and Ahmet Soylu, eds. <i>Rules and Reasoning - 9th International Joint Conference, RuleML+RR 2025, Istanbul, Turkey, September 22-24, 2025, Proceedings</i>. Vol. 16144. Lecture Notes in Computer Science. Springer, 2026. <a href=\"https://doi.org/10.1007/978-3-032-08887-1\">https://doi.org/10.1007/978-3-032-08887-1</a>.","short":"A. Hogan, K. Satoh, H. Dag, A.-Y. Turhan, D. Roman, A. Soylu, eds., Rules and Reasoning - 9th International Joint Conference, RuleML+RR 2025, Istanbul, Turkey, September 22-24, 2025, Proceedings, Springer, 2026.","mla":"Hogan, Aidan, et al., editors. <i>Rules and Reasoning - 9th International Joint Conference, RuleML+RR 2025, Istanbul, Turkey, September 22-24, 2025, Proceedings</i>. Springer, 2026, doi:<a href=\"https://doi.org/10.1007/978-3-032-08887-1\">10.1007/978-3-032-08887-1</a>.","ama":"Hogan A, Satoh K, Dag H, Turhan A-Y, Roman D, Soylu A, eds. <i>Rules and Reasoning - 9th International Joint Conference, RuleML+RR 2025, Istanbul, Turkey, September 22-24, 2025, Proceedings</i>. Vol 16144. Springer; 2026. doi:<a href=\"https://doi.org/10.1007/978-3-032-08887-1\">10.1007/978-3-032-08887-1</a>","bibtex":"@book{Hogan_Satoh_Dag_Turhan_Roman_Soylu_2026, series={Lecture Notes in Computer Science}, title={Rules and Reasoning - 9th International Joint Conference, RuleML+RR 2025, Istanbul, Turkey, September 22-24, 2025, Proceedings}, volume={16144}, DOI={<a href=\"https://doi.org/10.1007/978-3-032-08887-1\">10.1007/978-3-032-08887-1</a>}, publisher={Springer}, year={2026}, collection={Lecture Notes in Computer Science} }"}},{"status":"public","jel":["M15"],"conference":{"start_date":"2026-01-06","name":"59th Hawaii International Conference on System Sciences (HICSS 2026)","location":"Maui, Maui, Hawaii, USA","end_date":"2026-01-09"},"user_id":"74374","_id":"61310","publisher":"Association for Information Systems (AIS), IEEE Computer Society Press, University of Hawaii (Manoa)","quality_controlled":"1","project":[{"_id":"1250","name":"SHAPE : Gestaltung von Dienstleistungsentwicklungsprozessen und lnnovationspartnerschaften mit Unternehmen"}],"citation":{"apa":"Schäfer, J. M., Rajko, P., Angelova, D., &#38; Böhmann, T. (2026). From Engineering to Shaping: A Multiple Case Study on Advancing Service Systems Engineering through Continuous Value Shaping. <i>Proceedings of the 59th Hawaii International Conference on System Sciences (HICSS 2026)</i>. 59th Hawaii International Conference on System Sciences (HICSS 2026), Maui, Maui, Hawaii, USA.","ieee":"J. M. Schäfer, P. Rajko, D. Angelova, and T. Böhmann, “From Engineering to Shaping: A Multiple Case Study on Advancing Service Systems Engineering through Continuous Value Shaping,” presented at the 59th Hawaii International Conference on System Sciences (HICSS 2026), Maui, Maui, Hawaii, USA, 2026.","short":"J.M. Schäfer, P. Rajko, D. Angelova, T. Böhmann, in: Proceedings of the 59th Hawaii International Conference on System Sciences (HICSS 2026), Association for Information Systems (AIS), IEEE Computer Society Press, University of Hawaii (Manoa), Maui, Hawaii, USA, 2026.","chicago":"Schäfer, Jannika Marie, Polina Rajko, Daniela Angelova, and Tilo Böhmann. “From Engineering to Shaping: A Multiple Case Study on Advancing Service Systems Engineering through Continuous Value Shaping.” In <i>Proceedings of the 59th Hawaii International Conference on System Sciences (HICSS 2026)</i>. Maui, Hawaii, USA: Association for Information Systems (AIS), IEEE Computer Society Press, University of Hawaii (Manoa), 2026.","mla":"Schäfer, Jannika Marie, et al. “From Engineering to Shaping: A Multiple Case Study on Advancing Service Systems Engineering through Continuous Value Shaping.” <i>Proceedings of the 59th Hawaii International Conference on System Sciences (HICSS 2026)</i>, Association for Information Systems (AIS), IEEE Computer Society Press, University of Hawaii (Manoa), 2026.","ama":"Schäfer JM, Rajko P, Angelova D, Böhmann T. From Engineering to Shaping: A Multiple Case Study on Advancing Service Systems Engineering through Continuous Value Shaping. In: <i>Proceedings of the 59th Hawaii International Conference on System Sciences (HICSS 2026)</i>. Association for Information Systems (AIS), IEEE Computer Society Press, University of Hawaii (Manoa); 2026.","bibtex":"@inproceedings{Schäfer_Rajko_Angelova_Böhmann_2026, place={Maui, Hawaii, USA}, title={From Engineering to Shaping: A Multiple Case Study on Advancing Service Systems Engineering through Continuous Value Shaping}, booktitle={Proceedings of the 59th Hawaii International Conference on System Sciences (HICSS 2026)}, publisher={Association for Information Systems (AIS), IEEE Computer Society Press, University of Hawaii (Manoa)}, author={Schäfer, Jannika Marie and Rajko, Polina and Angelova, Daniela and Böhmann, Tilo}, year={2026} }"},"place":"Maui, Hawaii, USA","publication_status":"published","date_updated":"2026-02-05T06:57:02Z","year":"2026","title":"From Engineering to Shaping: A Multiple Case Study on Advancing Service Systems Engineering through Continuous Value Shaping","author":[{"id":"74374","full_name":"Schäfer, Jannika Marie","first_name":"Jannika Marie","last_name":"Schäfer"},{"full_name":"Rajko, Polina","first_name":"Polina","last_name":"Rajko"},{"last_name":"Angelova","first_name":"Daniela","full_name":"Angelova, Daniela"},{"full_name":"Böhmann, Tilo","last_name":"Böhmann","first_name":"Tilo"}],"language":[{"iso":"eng"}],"abstract":[{"lang":"eng","text":"Service systems engineering relies on structured, top-down approaches to designing and\r\ninnovating service systems. In today’s dynamic environments—shaped by digital transformation,\r\nevolving provider–user interactions, and shifting societal demands—these approaches face limitations in enabling continuous, context-sensitive innovation. Continuous Value Shaping emerges as a conceptual extension to service systems engineering, promoting more adaptive and co-evolutionary forms of service system development. This study examines how Continuous Value Shaping manifests through a multiple case study of three public sector projects. We identify distinct manifestations and constellations of the concept’s principles that complement classical\r\nSSE practices. As the first empirical exploration of Continuous Value Shaping, the study refines its\r\nconceptual foundation and enhances its accessibility for researchers and practitioners. We conclude with seven empirically derived propositions that inform future service systems engineering initiatives and demonstrate how Continuous Value Shaping supports the dynamic alignment of service systems with societal and systemic demands."}],"publication":"Proceedings of the 59th Hawaii International Conference on System Sciences (HICSS 2026)","type":"conference","keyword":["Continuous Value Shaping","Service Systems Engineering","Service Science","Public Sector","Service Innovation"],"department":[{"_id":"195"}],"date_created":"2025-09-16T13:55:52Z"},{"abstract":[{"text":"<jats:title>Abstract</jats:title>\n                  <jats:p>\n                    The relationship between leptin levels and psychiatric disorders has been studied more extensively in adults than in children and adolescents. However, the results are conflicting. We investigated serum leptin levels in children and adolescents (11 to 18.9 years) with psychiatric disorders (\n                    <jats:italic>n</jats:italic>\n                     = 363). Absolute and relative (body-mass-index (BMI)-, sex- and pubertal-stage-adjusted z-scores using reference values of healthy children and adolescents) leptin levels of different patient groups according to diagnosis were compared. The association between leptin levels and depression (Beck Depression Inventory-II) and anxiety (Child Behavior Checklist and Youth Self Report) was examined using regression analysis. Leptin z-scores were higher in patients with psychiatric disorders than in healthy controls (median 1.50,\n                    <jats:italic>p</jats:italic>\n                     &lt; .001). While global tests suggested differences in leptin z-scores between patients with different psychiatric disorders, these differences could not be attributed to diagnosis groups in post-hoc pairwise comparisons. Absolute leptin levels differed between psychiatric disorders (\n                    <jats:italic>p</jats:italic>\n                     &lt; .001). Patients with anorexia nervosa (AN) had the lowest levels, and patients with mood disorders had higher leptin levels than patients with mental disorders other than mood disorders, anxiety or AN. Neither absolute nor relative leptin levels were related to depressive or anxiety symptoms in regression models adjusted for sex and BMI. Significantly elevated BMI-, sex- and puberty-stage-adjusted leptin levels were observed in children and adolescents with psychiatric disorders compared to a reference sample. Further controlled studies are needed to confirm and explain this finding. No relationship was found between absolute or relative leptin levels and symptoms of depression or anxiety.\n                  </jats:p>","lang":"eng"}],"citation":{"ieee":"N. Albers <i>et al.</i>, “Children and adolescents with psychiatric disorders have high relative leptin levels upon adjustment for sex, BMI, and pubertal status,” <i>European Child &#38;amp; Adolescent Psychiatry</i>, 2026, doi: <a href=\"https://doi.org/10.1007/s00787-025-02921-4\">10.1007/s00787-025-02921-4</a>.","apa":"Albers, N., Antel, J., Föcker, M., Libuda, L., Bühlmeier, J., Hirtz, R., Seitz, J., Hinney, A., Hebebrand, J., &#38; Peters, T. (2026). Children and adolescents with psychiatric disorders have high relative leptin levels upon adjustment for sex, BMI, and pubertal status. <i>European Child &#38;amp; Adolescent Psychiatry</i>. <a href=\"https://doi.org/10.1007/s00787-025-02921-4\">https://doi.org/10.1007/s00787-025-02921-4</a>","chicago":"Albers, Nicola, Jochen Antel, Manuel Föcker, Lars Libuda, Judith Bühlmeier, Raphael Hirtz, Jochen Seitz, Anke Hinney, Johannes Hebebrand, and Triinu Peters. “Children and Adolescents with Psychiatric Disorders Have High Relative Leptin Levels upon Adjustment for Sex, BMI, and Pubertal Status.” <i>European Child &#38;amp; Adolescent Psychiatry</i>, 2026. <a href=\"https://doi.org/10.1007/s00787-025-02921-4\">https://doi.org/10.1007/s00787-025-02921-4</a>.","short":"N. Albers, J. Antel, M. Föcker, L. Libuda, J. Bühlmeier, R. Hirtz, J. Seitz, A. Hinney, J. Hebebrand, T. Peters, European Child &#38;amp; Adolescent Psychiatry (2026).","mla":"Albers, Nicola, et al. “Children and Adolescents with Psychiatric Disorders Have High Relative Leptin Levels upon Adjustment for Sex, BMI, and Pubertal Status.” <i>European Child &#38;amp; Adolescent Psychiatry</i>, Springer Science and Business Media LLC, 2026, doi:<a href=\"https://doi.org/10.1007/s00787-025-02921-4\">10.1007/s00787-025-02921-4</a>.","bibtex":"@article{Albers_Antel_Föcker_Libuda_Bühlmeier_Hirtz_Seitz_Hinney_Hebebrand_Peters_2026, title={Children and adolescents with psychiatric disorders have high relative leptin levels upon adjustment for sex, BMI, and pubertal status}, DOI={<a href=\"https://doi.org/10.1007/s00787-025-02921-4\">10.1007/s00787-025-02921-4</a>}, journal={European Child &#38;amp; Adolescent Psychiatry}, publisher={Springer Science and Business Media LLC}, author={Albers, Nicola and Antel, Jochen and Föcker, Manuel and Libuda, Lars and Bühlmeier, Judith and Hirtz, Raphael and Seitz, Jochen and Hinney, Anke and Hebebrand, Johannes and Peters, Triinu}, year={2026} }","ama":"Albers N, Antel J, Föcker M, et al. Children and adolescents with psychiatric disorders have high relative leptin levels upon adjustment for sex, BMI, and pubertal status. <i>European Child &#38;amp; Adolescent Psychiatry</i>. Published online 2026. doi:<a href=\"https://doi.org/10.1007/s00787-025-02921-4\">10.1007/s00787-025-02921-4</a>"},"publication":"European Child &amp; Adolescent Psychiatry","department":[{"_id":"35"},{"_id":"17"},{"_id":"22"}],"type":"journal_article","date_created":"2026-02-05T09:21:46Z","publication_status":"published","date_updated":"2026-02-05T09:22:02Z","author":[{"full_name":"Albers, Nicola","last_name":"Albers","first_name":"Nicola"},{"full_name":"Antel, Jochen","first_name":"Jochen","last_name":"Antel"},{"full_name":"Föcker, Manuel","last_name":"Föcker","first_name":"Manuel"},{"full_name":"Libuda, Lars","last_name":"Libuda","first_name":"Lars"},{"full_name":"Bühlmeier, Judith","last_name":"Bühlmeier","first_name":"Judith"},{"full_name":"Hirtz, Raphael","first_name":"Raphael","last_name":"Hirtz"},{"full_name":"Seitz, Jochen","last_name":"Seitz","first_name":"Jochen"},{"full_name":"Hinney, Anke","first_name":"Anke","last_name":"Hinney"},{"last_name":"Hebebrand","first_name":"Johannes","full_name":"Hebebrand, Johannes"},{"full_name":"Peters, Triinu","last_name":"Peters","first_name":"Triinu"}],"publication_identifier":{"issn":["1018-8827","1435-165X"]},"title":"Children and adolescents with psychiatric disorders have high relative leptin levels upon adjustment for sex, BMI, and pubertal status","status":"public","year":"2026","user_id":"88682","doi":"10.1007/s00787-025-02921-4","_id":"63881","publisher":"Springer Science and Business Media LLC","language":[{"iso":"eng"}]},{"language":[{"iso":"eng"}],"_id":"63880","publisher":"Springer Science and Business Media LLC","user_id":"88682","doi":"10.1186/s40795-026-01260-0","publication_identifier":{"issn":["2055-0928"]},"author":[{"first_name":"Nadja","last_name":"Knoll-Pientka","full_name":"Knoll-Pientka, Nadja"},{"last_name":"Schils","first_name":"Dorina","full_name":"Schils, Dorina"},{"last_name":"Mantwill","first_name":"Katrin","full_name":"Mantwill, Katrin"},{"full_name":"Dinse, Hannah","last_name":"Dinse","first_name":"Hannah"},{"last_name":"Skoda","first_name":"Eva-Maria","full_name":"Skoda, Eva-Maria"},{"full_name":"Bäuerle, Alexander","last_name":"Bäuerle","first_name":"Alexander"},{"first_name":"Martin","last_name":"Teufel","full_name":"Teufel, Martin"},{"full_name":"Libuda, Lars","first_name":"Lars","last_name":"Libuda"}],"status":"public","title":"Adherence to dietary recommendations according to the General Dietary Behavior Inventory (GDBI) and its association with bioelectrical impedance analysis (BIA) parameters among young, healthy and normal weight women","year":"2026","publication_status":"published","date_updated":"2026-02-05T09:21:23Z","date_created":"2026-02-05T09:20:38Z","department":[{"_id":"35"},{"_id":"17"},{"_id":"22"}],"type":"journal_article","citation":{"mla":"Knoll-Pientka, Nadja, et al. “Adherence to Dietary Recommendations According to the General Dietary Behavior Inventory (GDBI) and Its Association with Bioelectrical Impedance Analysis (BIA) Parameters among Young, Healthy and Normal Weight Women.” <i>BMC Nutrition</i>, Springer Science and Business Media LLC, 2026, doi:<a href=\"https://doi.org/10.1186/s40795-026-01260-0\">10.1186/s40795-026-01260-0</a>.","ama":"Knoll-Pientka N, Schils D, Mantwill K, et al. Adherence to dietary recommendations according to the General Dietary Behavior Inventory (GDBI) and its association with bioelectrical impedance analysis (BIA) parameters among young, healthy and normal weight women. <i>BMC Nutrition</i>. Published online 2026. doi:<a href=\"https://doi.org/10.1186/s40795-026-01260-0\">10.1186/s40795-026-01260-0</a>","bibtex":"@article{Knoll-Pientka_Schils_Mantwill_Dinse_Skoda_Bäuerle_Teufel_Libuda_2026, title={Adherence to dietary recommendations according to the General Dietary Behavior Inventory (GDBI) and its association with bioelectrical impedance analysis (BIA) parameters among young, healthy and normal weight women}, DOI={<a href=\"https://doi.org/10.1186/s40795-026-01260-0\">10.1186/s40795-026-01260-0</a>}, journal={BMC Nutrition}, publisher={Springer Science and Business Media LLC}, author={Knoll-Pientka, Nadja and Schils, Dorina and Mantwill, Katrin and Dinse, Hannah and Skoda, Eva-Maria and Bäuerle, Alexander and Teufel, Martin and Libuda, Lars}, year={2026} }","apa":"Knoll-Pientka, N., Schils, D., Mantwill, K., Dinse, H., Skoda, E.-M., Bäuerle, A., Teufel, M., &#38; Libuda, L. (2026). Adherence to dietary recommendations according to the General Dietary Behavior Inventory (GDBI) and its association with bioelectrical impedance analysis (BIA) parameters among young, healthy and normal weight women. <i>BMC Nutrition</i>. <a href=\"https://doi.org/10.1186/s40795-026-01260-0\">https://doi.org/10.1186/s40795-026-01260-0</a>","ieee":"N. Knoll-Pientka <i>et al.</i>, “Adherence to dietary recommendations according to the General Dietary Behavior Inventory (GDBI) and its association with bioelectrical impedance analysis (BIA) parameters among young, healthy and normal weight women,” <i>BMC Nutrition</i>, 2026, doi: <a href=\"https://doi.org/10.1186/s40795-026-01260-0\">10.1186/s40795-026-01260-0</a>.","chicago":"Knoll-Pientka, Nadja, Dorina Schils, Katrin Mantwill, Hannah Dinse, Eva-Maria Skoda, Alexander Bäuerle, Martin Teufel, and Lars Libuda. “Adherence to Dietary Recommendations According to the General Dietary Behavior Inventory (GDBI) and Its Association with Bioelectrical Impedance Analysis (BIA) Parameters among Young, Healthy and Normal Weight Women.” <i>BMC Nutrition</i>, 2026. <a href=\"https://doi.org/10.1186/s40795-026-01260-0\">https://doi.org/10.1186/s40795-026-01260-0</a>.","short":"N. Knoll-Pientka, D. Schils, K. Mantwill, H. Dinse, E.-M. Skoda, A. Bäuerle, M. Teufel, L. Libuda, BMC Nutrition (2026)."},"publication":"BMC Nutrition"},{"abstract":[{"lang":"eng","text":"Proton exchange membranes (PEMs) are essential for fuel cells, yet conventional materials like Nafion suffer from humidity dependence and limited thermal stability. This study introduces sulfonated phenylene-bridged periodic mesoporous organosilicas (PMOs) as promising inorganic–organic hybrid PEMs, synthesized via surfactant-templating with varying alkyl chain lengths for different mesopore sizes. Post-synthetic functionalization involves nitration of phenylene moieties, reduction to amines, and ring-opening of propane or butane sultones to graft sulfonic acid groups via flexible spacers, achieving homogeneous distribution along pore walls. Post-functionalization is confirmed by powder X-ray diffraction (PXRD), revealing preserved 2D hexagonal p6mm ordering and phenylene stacking. N2 physisorption shows type IV isotherms with reduced pore volumes and pore sizes. 1H NMR is used to quantify functionalization degrees. Impedance spectroscopy on pressed pellets demonstrates proton conductivities up to 2 × 10−3 S cm−1 at 30 °C and 90% RH, depending on the functionalization degree, confirming sulfonic acid-mediated conduction."}],"issue":"3","publication":"Nanomaterials","type":"journal_article","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"date_created":"2026-02-05T09:46:20Z","date_updated":"2026-02-05T09:48:27Z","publication_status":"published","intvolume":"        16","title":"Proton-Conducting Sulfonated Periodic Mesoporous Organosilica","year":"2026","author":[{"first_name":"Tobias","last_name":"Wagner","full_name":"Wagner, Tobias"},{"full_name":"Tiemann, Michael","orcid":"0000-0003-1711-2722","first_name":"Michael","last_name":"Tiemann","id":"23547"}],"publication_identifier":{"issn":["2079-4991"]},"doi":"10.3390/nano16030203","main_file_link":[{"open_access":"1"}],"article_number":"203","language":[{"iso":"eng"}],"quality_controlled":"1","citation":{"short":"T. Wagner, M. Tiemann, Nanomaterials 16 (2026).","chicago":"Wagner, Tobias, and Michael Tiemann. “Proton-Conducting Sulfonated Periodic Mesoporous Organosilica.” <i>Nanomaterials</i> 16, no. 3 (2026). <a href=\"https://doi.org/10.3390/nano16030203\">https://doi.org/10.3390/nano16030203</a>.","apa":"Wagner, T., &#38; Tiemann, M. (2026). Proton-Conducting Sulfonated Periodic Mesoporous Organosilica. <i>Nanomaterials</i>, <i>16</i>(3), Article 203. <a href=\"https://doi.org/10.3390/nano16030203\">https://doi.org/10.3390/nano16030203</a>","ieee":"T. Wagner and M. Tiemann, “Proton-Conducting Sulfonated Periodic Mesoporous Organosilica,” <i>Nanomaterials</i>, vol. 16, no. 3, Art. no. 203, 2026, doi: <a href=\"https://doi.org/10.3390/nano16030203\">10.3390/nano16030203</a>.","ama":"Wagner T, Tiemann M. Proton-Conducting Sulfonated Periodic Mesoporous Organosilica. <i>Nanomaterials</i>. 2026;16(3). doi:<a href=\"https://doi.org/10.3390/nano16030203\">10.3390/nano16030203</a>","bibtex":"@article{Wagner_Tiemann_2026, title={Proton-Conducting Sulfonated Periodic Mesoporous Organosilica}, volume={16}, DOI={<a href=\"https://doi.org/10.3390/nano16030203\">10.3390/nano16030203</a>}, number={3203}, journal={Nanomaterials}, publisher={MDPI AG}, author={Wagner, Tobias and Tiemann, Michael}, year={2026} }","mla":"Wagner, Tobias, and Michael Tiemann. “Proton-Conducting Sulfonated Periodic Mesoporous Organosilica.” <i>Nanomaterials</i>, vol. 16, no. 3, 203, MDPI AG, 2026, doi:<a href=\"https://doi.org/10.3390/nano16030203\">10.3390/nano16030203</a>."},"oa":"1","status":"public","user_id":"23547","volume":16,"publisher":"MDPI AG","_id":"63883"},{"citation":{"bibtex":"@book{Ribbat_2026, place={Berlin}, title={In den Tag: Eine kurze Geschichte des Aufwachens}, publisher={Insel}, author={Ribbat, Christoph}, year={2026} }","ama":"Ribbat C. <i>In den Tag: Eine kurze Geschichte des Aufwachens</i>. Insel; 2026.","short":"C. Ribbat, In den Tag: Eine kurze Geschichte des Aufwachens, Insel, Berlin, 2026.","chicago":"Ribbat, Christoph. <i>In den Tag: Eine kurze Geschichte des Aufwachens</i>. Berlin: Insel, 2026.","ieee":"C. Ribbat, <i>In den Tag: Eine kurze Geschichte des Aufwachens</i>. Berlin: Insel, 2026.","apa":"Ribbat, C. (2026). <i>In den Tag: Eine kurze Geschichte des Aufwachens</i>. Insel.","mla":"Ribbat, Christoph. <i>In den Tag: Eine kurze Geschichte des Aufwachens</i>. Insel, 2026."},"place":"Berlin","date_created":"2025-12-29T10:00:07Z","type":"book","author":[{"last_name":"Ribbat","first_name":"Christoph","full_name":"Ribbat, Christoph","id":"426"}],"publication_identifier":{"unknown":["978-3-458-64584-9"]},"title":"In den Tag: Eine kurze Geschichte des Aufwachens","year":"2026","status":"public","date_updated":"2026-02-05T10:59:58Z","publication_status":"published","_id":"63423","publisher":"Insel","language":[{"iso":"ger"}],"page":"166","user_id":"426"},{"type":"book_chapter","department":[{"_id":"208"},{"_id":"640"}],"date_created":"2026-02-05T14:06:22Z","publication":" Medien, Didaktik, Hochschule: Reflexionen und Resonanzen","citation":{"short":"T. Jenert, in: S. Hofhues, E. Lübcke, M. Schiefner-Rohs (Eds.),  Medien, Didaktik, Hochschule: Reflexionen Und Resonanzen, 2026, pp. 91–98.","chicago":"Jenert, Tobias. “Über Das Didaktische in Der Wissenschaft.” In <i> Medien, Didaktik, Hochschule: Reflexionen Und Resonanzen</i>, edited by Sandra Hofhues, Eileen Lübcke, and Mandy Schiefner-Rohs, 91–98, 2026. <a href=\"https://doi.org/9783839424490\">https://doi.org/9783839424490</a>.","apa":"Jenert, T. (2026). Über das Didaktische in der Wissenschaft. In S. Hofhues, E. Lübcke, &#38; M. Schiefner-Rohs (Eds.), <i> Medien, Didaktik, Hochschule: Reflexionen und Resonanzen</i> (pp. 91–98). <a href=\"https://doi.org/9783839424490\">https://doi.org/9783839424490</a>","ieee":"T. Jenert, “Über das Didaktische in der Wissenschaft,” in <i> Medien, Didaktik, Hochschule: Reflexionen und Resonanzen</i>, S. Hofhues, E. Lübcke, and M. Schiefner-Rohs, Eds. 2026, pp. 91–98.","ama":"Jenert T. Über das Didaktische in der Wissenschaft. In: Hofhues S, Lübcke E, Schiefner-Rohs M, eds. <i> Medien, Didaktik, Hochschule: Reflexionen Und Resonanzen</i>. ; 2026:91-98. doi:<a href=\"https://doi.org/9783839424490\">9783839424490</a>","bibtex":"@inbook{Jenert_2026, title={Über das Didaktische in der Wissenschaft}, DOI={<a href=\"https://doi.org/9783839424490\">9783839424490</a>}, booktitle={ Medien, Didaktik, Hochschule: Reflexionen und Resonanzen}, author={Jenert, Tobias}, editor={Hofhues, Sandra and Lübcke, Eileen and Schiefner-Rohs, Mandy}, year={2026}, pages={91–98} }","mla":"Jenert, Tobias. “Über Das Didaktische in Der Wissenschaft.” <i> Medien, Didaktik, Hochschule: Reflexionen Und Resonanzen</i>, edited by Sandra Hofhues et al., 2026, pp. 91–98, doi:<a href=\"https://doi.org/9783839424490\">9783839424490</a>."},"user_id":"71994","doi":"9783839424490","editor":[{"full_name":"Hofhues, Sandra","first_name":"Sandra","last_name":"Hofhues"},{"full_name":"Lübcke, Eileen","first_name":"Eileen","last_name":"Lübcke"},{"full_name":"Schiefner-Rohs, Mandy","last_name":"Schiefner-Rohs","first_name":"Mandy"}],"page":"91-98","_id":"63889","language":[{"iso":"eng"}],"date_updated":"2026-02-05T14:06:59Z","title":"Über das Didaktische in der Wissenschaft","status":"public","year":"2026","author":[{"full_name":"Jenert, Tobias","first_name":"Tobias","orcid":" https://orcid.org/0000-0001-9262-5646","last_name":"Jenert","id":"71994"}]},{"type":"review","oa":"1","date_created":"2026-02-06T07:59:43Z","publication":"Zeitschrift für Angewandte Linguistik","citation":{"apa":"Markewitz, F. (2026). Langrezension zu James McElvennys “Entstehung und Entwicklung der modernen Linguistik. Von den Anfängen bis zum Zweiten Weltkrieg.” In <i>Zeitschrift für Angewandte Linguistik</i> (Vol. 84).","ieee":"F. Markewitz, “Langrezension zu James McElvennys ‘Entstehung und Entwicklung der modernen Linguistik. Von den Anfängen bis zum Zweiten Weltkrieg,’” <i>Zeitschrift für Angewandte Linguistik</i>, vol. 84. 2026.","short":"F. Markewitz, Zeitschrift für Angewandte Linguistik 84 (2026).","chicago":"Markewitz, Friedrich. “Langrezension zu James McElvennys ‘Entstehung und Entwicklung der modernen Linguistik. Von den Anfängen bis zum Zweiten Weltkrieg.’” <i>Zeitschrift für Angewandte Linguistik</i>, 2026.","mla":"Markewitz, Friedrich. “Langrezension zu James McElvennys ‘Entstehung und Entwicklung der modernen Linguistik. Von den Anfängen bis zum Zweiten Weltkrieg.’” <i>Zeitschrift für Angewandte Linguistik</i>, vol. 84, 2026.","ama":"Markewitz F. Langrezension zu James McElvennys “Entstehung und Entwicklung der modernen Linguistik. Von den Anfängen bis zum Zweiten Weltkrieg.” <i>Zeitschrift für Angewandte Linguistik</i>. 2026;84.","bibtex":"@article{Markewitz_2026, title={Langrezension zu James McElvennys “Entstehung und Entwicklung der modernen Linguistik. Von den Anfängen bis zum Zweiten Weltkrieg”}, volume={84}, journal={Zeitschrift für Angewandte Linguistik}, author={Markewitz, Friedrich}, year={2026} }"},"user_id":"67227","volume":84,"main_file_link":[{"url":"https://www.degruyterbrill.com/document/doi/10.1515/zfal-2026-2009/html","open_access":"1"}],"language":[{"iso":"ger"}],"_id":"63898","date_updated":"2026-02-06T07:59:49Z","publication_status":"epub_ahead","intvolume":"        84","year":"2026","status":"public","title":"Langrezension zu James McElvennys 'Entstehung und Entwicklung der modernen Linguistik. Von den Anfängen bis zum Zweiten Weltkrieg'","author":[{"id":"67227","last_name":"Markewitz","first_name":"Friedrich","full_name":"Markewitz, Friedrich"}]},{"type":"review","date_created":"2026-02-06T07:57:32Z","publication":"Journal für Medienlinguistik","issue":"1","citation":{"ieee":"F. Markewitz, “Langrezension zu Larissa Schüllers ‘Kommunikationsarbeit in Telefonzentralen. Eine Wissensgeschichte körperlicher und sprachlicher Praktiken des frühen 20. Jahrhunderts,’” <i>Journal für Medienlinguistik</i>, vol. 8, no. 1. pp. 11–16, 2026.","apa":"Markewitz, F. (2026). Langrezension zu Larissa Schüllers “Kommunikationsarbeit in Telefonzentralen. Eine Wissensgeschichte körperlicher und sprachlicher Praktiken des frühen 20. Jahrhunderts.” In <i>Journal für Medienlinguistik</i> (Vol. 8, Issue 1, pp. 11–16).","mla":"Markewitz, Friedrich. “Langrezension zu Larissa Schüllers ‘Kommunikationsarbeit in Telefonzentralen. Eine Wissensgeschichte körperlicher und sprachlicher Praktiken des frühen 20. Jahrhunderts.’” <i>Journal für Medienlinguistik</i>, vol. 8, no. 1, 2026, pp. 11–16.","bibtex":"@article{Markewitz_2026, title={Langrezension zu Larissa Schüllers “Kommunikationsarbeit in Telefonzentralen. Eine Wissensgeschichte körperlicher und sprachlicher Praktiken des frühen 20. Jahrhunderts”}, volume={8}, number={1}, journal={Journal für Medienlinguistik}, author={Markewitz, Friedrich}, year={2026}, pages={11–16} }","chicago":"Markewitz, Friedrich. “Langrezension zu Larissa Schüllers ‘Kommunikationsarbeit in Telefonzentralen. Eine Wissensgeschichte körperlicher und sprachlicher Praktiken des frühen 20. Jahrhunderts.’” <i>Journal für Medienlinguistik</i>, 2026.","short":"F. Markewitz, Journal für Medienlinguistik 8 (2026) 11–16.","ama":"Markewitz F. Langrezension zu Larissa Schüllers “Kommunikationsarbeit in Telefonzentralen. Eine Wissensgeschichte körperlicher und sprachlicher Praktiken des frühen 20. Jahrhunderts.” <i>Journal für Medienlinguistik</i>. 2026;8(1):11-16."},"user_id":"67227","volume":8,"page":"11-16","_id":"63897","language":[{"iso":"ger"}],"date_updated":"2026-02-06T07:57:55Z","publication_status":"published","intvolume":"         8","title":"Langrezension zu Larissa Schüllers 'Kommunikationsarbeit in Telefonzentralen. Eine Wissensgeschichte körperlicher und sprachlicher Praktiken des frühen 20. Jahrhunderts'","status":"public","year":"2026","author":[{"last_name":"Markewitz","first_name":"Friedrich","full_name":"Markewitz, Friedrich","id":"67227"}]},{"place":"New York, NY, USA","citation":{"mla":"Stachura, Philip, et al. “SORCERI: Streaming Overlay Acceleration for Highly Contracted Electron Repulsion Integral Computations in Quantum Chemistry.” <i>Proceedings of the 2026 ACM/SIGDA International Symposium on Field Programmable Gate Arrays (FPGA ’26)</i>, Association for Computing Machinery, 2026, pp. 224–34, doi:<a href=\"https://doi.org/10.1145/3748173.3779198\">10.1145/3748173.3779198</a>.","bibtex":"@inproceedings{Stachura_Wu_Plessl_Fang_2026, place={New York, NY, USA}, title={SORCERI: Streaming Overlay Acceleration for Highly Contracted Electron Repulsion Integral Computations in Quantum Chemistry}, DOI={<a href=\"https://doi.org/10.1145/3748173.3779198\">10.1145/3748173.3779198</a>}, booktitle={Proceedings of the 2026 ACM/SIGDA International Symposium on Field Programmable Gate Arrays (FPGA ’26)}, publisher={Association for Computing Machinery}, author={Stachura, Philip and Wu, Xin and Plessl, Christian and Fang, Zhenman}, year={2026}, pages={224–234} }","ama":"Stachura P, Wu X, Plessl C, Fang Z. SORCERI: Streaming Overlay Acceleration for Highly Contracted Electron Repulsion Integral Computations in Quantum Chemistry. In: <i>Proceedings of the 2026 ACM/SIGDA International Symposium on Field Programmable Gate Arrays (FPGA ’26)</i>. Association for Computing Machinery; 2026:224-234. doi:<a href=\"https://doi.org/10.1145/3748173.3779198\">10.1145/3748173.3779198</a>","ieee":"P. Stachura, X. Wu, C. Plessl, and Z. Fang, “SORCERI: Streaming Overlay Acceleration for Highly Contracted Electron Repulsion Integral Computations in Quantum Chemistry,” in <i>Proceedings of the 2026 ACM/SIGDA International Symposium on Field Programmable Gate Arrays (FPGA ’26)</i>, 2026, pp. 224–234, doi: <a href=\"https://doi.org/10.1145/3748173.3779198\">10.1145/3748173.3779198</a>.","apa":"Stachura, P., Wu, X., Plessl, C., &#38; Fang, Z. (2026). SORCERI: Streaming Overlay Acceleration for Highly Contracted Electron Repulsion Integral Computations in Quantum Chemistry. <i>Proceedings of the 2026 ACM/SIGDA International Symposium on Field Programmable Gate Arrays (FPGA ’26)</i>, 224–234. <a href=\"https://doi.org/10.1145/3748173.3779198\">https://doi.org/10.1145/3748173.3779198</a>","chicago":"Stachura, Philip, Xin Wu, Christian Plessl, and Zhenman Fang. “SORCERI: Streaming Overlay Acceleration for Highly Contracted Electron Repulsion Integral Computations in Quantum Chemistry.” In <i>Proceedings of the 2026 ACM/SIGDA International Symposium on Field Programmable Gate Arrays (FPGA ’26)</i>, 224–34. New York, NY, USA: Association for Computing Machinery, 2026. <a href=\"https://doi.org/10.1145/3748173.3779198\">https://doi.org/10.1145/3748173.3779198</a>.","short":"P. Stachura, X. Wu, C. Plessl, Z. Fang, in: Proceedings of the 2026 ACM/SIGDA International Symposium on Field Programmable Gate Arrays (FPGA ’26), Association for Computing Machinery, New York, NY, USA, 2026, pp. 224–234."},"project":[{"name":"Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"_id":"63890","publisher":"Association for Computing Machinery","page":"224-234","user_id":"77439","status":"public","date_created":"2026-02-06T06:43:22Z","department":[{"_id":"27"},{"_id":"518"}],"type":"conference","keyword":["electron repulsion integrals","quantum chemistry","atomistic simulation","overlay architecture","fpga acceleration"],"publication":"Proceedings of the 2026 ACM/SIGDA International Symposium on Field Programmable Gate Arrays (FPGA '26)","abstract":[{"lang":"eng","text":"The computation of highly contracted electron repulsion integrals (ERIs) is essential to achieve quantum accuracy in atomistic simulations based on quantum mechanics. Its growing computational demands make energy efficiency a critical concern. Recent studies demonstrate FPGAs’ superior performance and energy efficiency for computing primitive ERIs, but the computation of highly contracted ERIs introduces significant algorithmic complexity and new design challenges for FPGA acceleration.In this work, we present SORCERI, the first streaming overlay acceleration for highly contracted ERI computations on FPGAs. SORCERI introduces a novel streaming Rys computing unit to calculate roots and weights of Rys polynomials on-chip, and a streaming contraction unit for the contraction of primitive ERIs. This shifts the design bottleneck from limited CPU-FPGA communication bandwidth to available FPGA computation resources. To address practical deployment challenges for a large number of quartet classes, we design three streaming overlays, together with an efficient memory transpose optimization, to cover the 21 most commonly used quartet classes in realistic atomistic simulations. To address the new computation constraints, we use flexible calculation stages with a free-running streaming architecture to achieve high DSP utilization and good timing closure.Experiments demonstrate that SORCERI achieves an average 5.96x, 1.99x, and 1.16x better performance per watt than libint on a 64-core AMD EPYC 7713 CPU, libintx on an Nvidia A40 GPU, and SERI, the prior best-performing FPGA design for primitive ERIs. Furthermore, SORCERI reaches a peak throughput of 44.11 GERIS (109 ERIs per second) that is 1.52x, 1.13x, and 1.93x greater than libint, libintx and SERI, respectively. SORCERI will be released soon at https://github.com/SFU-HiAccel/SORCERI."}],"language":[{"iso":"eng"}],"main_file_link":[{"url":"https://dl.acm.org/doi/10.1145/3748173.3779198"}],"doi":"10.1145/3748173.3779198","author":[{"full_name":"Stachura, Philip","first_name":"Philip","last_name":"Stachura"},{"id":"77439","full_name":"Wu, Xin","first_name":"Xin","last_name":"Wu"},{"first_name":"Christian","last_name":"Plessl","orcid":"0000-0001-5728-9982","full_name":"Plessl, Christian","id":"16153"},{"full_name":"Fang, Zhenman","first_name":"Zhenman","last_name":"Fang"}],"publication_identifier":{"isbn":["9798400720796"]},"year":"2026","title":"SORCERI: Streaming Overlay Acceleration for Highly Contracted Electron Repulsion Integral Computations in Quantum Chemistry","date_updated":"2026-02-09T09:16:32Z","publication_status":"published"},{"date_updated":"2026-02-09T07:49:17Z","author":[{"full_name":"Arango-Piñeros, Santiago","first_name":"Santiago","last_name":"Arango-Piñeros"},{"id":"100450","first_name":"Fabian","last_name":"Gundlach","full_name":"Gundlach, Fabian"},{"full_name":"Lemke Oliver, Robert J.","last_name":"Lemke Oliver","first_name":"Robert J."},{"last_name":"McGown","first_name":"Kevin J.","full_name":"McGown, Kevin J."},{"full_name":"Sawin, Will","first_name":"Will","last_name":"Sawin"},{"full_name":"Serrano López, Allechar","last_name":"Serrano López","first_name":"Allechar"},{"last_name":"Shankar","first_name":"Arul","full_name":"Shankar, Arul"},{"full_name":"Varma, Ila","last_name":"Varma","first_name":"Ila"}],"status":"public","title":"Counting number fields of fixed degree by their smallest defining polynomial","year":"2026","user_id":"100450","language":[{"iso":"eng"}],"_id":"64068","abstract":[{"lang":"eng","text":"When do two irreducible polynomials with integer coefficients\r\n  define the same number field? One can define an action of\r\n  $\\mathrm{GL}_2 \\times \\mathrm{GL}_1$ on the space of polynomials of degree $n$ so that for any two\r\n  polynomials $f$ and $g$ in the same orbit, the roots of $f$ may be expressed\r\n  as rational linear transformations of the roots of $g$; thus, they generate\r\n  the same field. In this article, we show that almost all polynomials of\r\n  degree $n$ with size at most $X$ can only define the same number field as\r\n  another polynomial of degree $n$ with size at most $X$ if they lie in the\r\n  same orbit for this group action. (Here we measure the size of polynomials by\r\n  the greatest absolute value of their coefficients.)\r\n  This improves on work of Bhargava, Shankar, and Wang, who proved a similar\r\n  statement for a positive proportion of polynomials. Using this result, we\r\n  prove that the number of degree $n$ fields such that the smallest polynomial\r\n  defining the field has size at most $X$ is asymptotic to a constant times\r\n  $X^{n+1}$ as long as $n\\geq 3$. For $n = 2$, we obtain a precise asymptotic of\r\n  the form $\\frac{27}{π^2} X^2$."}],"citation":{"ieee":"S. Arango-Piñeros <i>et al.</i>, “Counting number fields of fixed degree by their smallest defining polynomial,” <i>arXiv:2602.06943</i>. 2026.","apa":"Arango-Piñeros, S., Gundlach, F., Lemke Oliver, R. J., McGown, K. J., Sawin, W., Serrano López, A., Shankar, A., &#38; Varma, I. (2026). Counting number fields of fixed degree by their smallest defining polynomial. In <i>arXiv:2602.06943</i>.","short":"S. Arango-Piñeros, F. Gundlach, R.J. Lemke Oliver, K.J. McGown, W. Sawin, A. Serrano López, A. Shankar, I. Varma, ArXiv:2602.06943 (2026).","chicago":"Arango-Piñeros, Santiago, Fabian Gundlach, Robert J. Lemke Oliver, Kevin J. McGown, Will Sawin, Allechar Serrano López, Arul Shankar, and Ila Varma. “Counting Number Fields of Fixed Degree by Their Smallest Defining Polynomial.” <i>ArXiv:2602.06943</i>, 2026.","mla":"Arango-Piñeros, Santiago, et al. “Counting Number Fields of Fixed Degree by Their Smallest Defining Polynomial.” <i>ArXiv:2602.06943</i>, 2026.","bibtex":"@article{Arango-Piñeros_Gundlach_Lemke Oliver_McGown_Sawin_Serrano López_Shankar_Varma_2026, title={Counting number fields of fixed degree by their smallest defining polynomial}, journal={arXiv:2602.06943}, author={Arango-Piñeros, Santiago and Gundlach, Fabian and Lemke Oliver, Robert J. and McGown, Kevin J. and Sawin, Will and Serrano López, Allechar and Shankar, Arul and Varma, Ila}, year={2026} }","ama":"Arango-Piñeros S, Gundlach F, Lemke Oliver RJ, et al. Counting number fields of fixed degree by their smallest defining polynomial. <i>arXiv:260206943</i>. Published online 2026."},"publication":"arXiv:2602.06943","type":"preprint","date_created":"2026-02-09T07:48:05Z","external_id":{"arxiv":["2602.06943"]}},{"year":"2026","status":"public","title":"Liquidity Effects of a Wealth Tax on Residential Rental Real Estate","jel":["H22","H23","H24","R31"],"author":[{"last_name":"Maiterth","first_name":"Ralf","full_name":"Maiterth, Ralf"},{"last_name":"Piper","first_name":"Yuri","full_name":"Piper, Yuri","id":"49955"},{"first_name":"Caren","orcid":" 0000-0002-8183-5901","last_name":"Sureth-Sloane","full_name":"Sureth-Sloane, Caren","id":"530"}],"date_updated":"2026-02-09T11:18:25Z","publication_status":"published","_id":"63835","language":[{"iso":"eng"}],"series_title":"TRR 266 Accounting for Transparency Working Paper Series No. 221","doi":"10.2139/ssrn.6147767","user_id":"96670","citation":{"bibtex":"@book{Maiterth_Piper_Sureth-Sloane_2026, series={TRR 266 Accounting for Transparency Working Paper Series No. 221}, title={Liquidity Effects of a Wealth Tax on Residential Rental Real Estate}, DOI={<a href=\"https://doi.org/10.2139/ssrn.6147767\">10.2139/ssrn.6147767</a>}, author={Maiterth, Ralf and Piper, Yuri and Sureth-Sloane, Caren}, year={2026}, collection={TRR 266 Accounting for Transparency Working Paper Series No. 221} }","ama":"Maiterth R, Piper Y, Sureth-Sloane C. <i>Liquidity Effects of a Wealth Tax on Residential Rental Real Estate</i>.; 2026. doi:<a href=\"https://doi.org/10.2139/ssrn.6147767\">10.2139/ssrn.6147767</a>","mla":"Maiterth, Ralf, et al. <i>Liquidity Effects of a Wealth Tax on Residential Rental Real Estate</i>. 2026, doi:<a href=\"https://doi.org/10.2139/ssrn.6147767\">10.2139/ssrn.6147767</a>.","chicago":"Maiterth, Ralf, Yuri Piper, and Caren Sureth-Sloane. <i>Liquidity Effects of a Wealth Tax on Residential Rental Real Estate</i>. TRR 266 Accounting for Transparency Working Paper Series No. 221, 2026. <a href=\"https://doi.org/10.2139/ssrn.6147767\">https://doi.org/10.2139/ssrn.6147767</a>.","short":"R. Maiterth, Y. Piper, C. Sureth-Sloane, Liquidity Effects of a Wealth Tax on Residential Rental Real Estate, 2026.","ieee":"R. Maiterth, Y. Piper, and C. Sureth-Sloane, <i>Liquidity Effects of a Wealth Tax on Residential Rental Real Estate</i>. 2026.","apa":"Maiterth, R., Piper, Y., &#38; Sureth-Sloane, C. (2026). <i>Liquidity Effects of a Wealth Tax on Residential Rental Real Estate</i>. <a href=\"https://doi.org/10.2139/ssrn.6147767\">https://doi.org/10.2139/ssrn.6147767</a>"},"abstract":[{"text":"This article examines the liquidity effects of a wealth tax on residential rental real estate. Using data from a real estate corporation, we simulate the effects of a wealth tax on cash flows from the rental operations. The level of detail of the data enables us to conduct analyses at the annual, regional and year of construction level. A comparison with real estate data from other sources supports external validity. The results of the simulation show that the introduction of a wealth tax can significantly reduce the cash flow from rental operations and lead to liquidity problems. On average over all observations, a wealth tax rate of 2% leads to a negative cash flow after all costs. In general, this finding implies that growth-oriented real estate is more affected by a wealth tax in terms of liquidity than rental yield-oriented real estate. Particularly in large cities with high market values but relatively low rents, the liquidity effects can be more than three times as high as in rural or industrial regions – potentially leading to a relative loss of investment attractiveness. As a wealth tax is decoupled from rental income, the tax burden is very sensitive to market developments, including the interest rate environment. As a result, investments in residential rental real estate are exposed to additional uncertainty. This additional tax uncertainty might impair the willingness to invest and should therefore be taken into account in political discussions on the reintroduction of a wealth tax.","lang":"eng"}],"date_created":"2026-02-02T13:38:29Z","type":"working_paper","department":[{"_id":"187"}]},{"department":[{"_id":"563"}],"type":"conference","date_created":"2026-02-09T14:52:15Z","citation":{"bibtex":"@inproceedings{Humpert_Graunke_Cichon_Ammanagi_Schierbaum_Dumitrescu_2026, title={Generative AI in Systems Engineering: Automated Creation of System Architectures and Early-Stage Calculation in the B2B Sector}, DOI={<a href=\"https://doi.org/10.1109/isse65546.2025.11370000\">10.1109/isse65546.2025.11370000</a>}, booktitle={2025 IEEE International Symposium on Systems Engineering (ISSE)}, publisher={IEEE}, author={Humpert, Lynn and Graunke, Jannis and Cichon, Gerrit and Ammanagi, Anuradha and Schierbaum, Anja and Dumitrescu, Roman}, year={2026} }","chicago":"Humpert, Lynn, Jannis Graunke, Gerrit Cichon, Anuradha Ammanagi, Anja Schierbaum, and Roman Dumitrescu. “Generative AI in Systems Engineering: Automated Creation of System Architectures and Early-Stage Calculation in the B2B Sector.” In <i>2025 IEEE International Symposium on Systems Engineering (ISSE)</i>. IEEE, 2026. <a href=\"https://doi.org/10.1109/isse65546.2025.11370000\">https://doi.org/10.1109/isse65546.2025.11370000</a>.","short":"L. Humpert, J. Graunke, G. Cichon, A. Ammanagi, A. Schierbaum, R. Dumitrescu, in: 2025 IEEE International Symposium on Systems Engineering (ISSE), IEEE, 2026.","ama":"Humpert L, Graunke J, Cichon G, Ammanagi A, Schierbaum A, Dumitrescu R. Generative AI in Systems Engineering: Automated Creation of System Architectures and Early-Stage Calculation in the B2B Sector. In: <i>2025 IEEE International Symposium on Systems Engineering (ISSE)</i>. IEEE; 2026. doi:<a href=\"https://doi.org/10.1109/isse65546.2025.11370000\">10.1109/isse65546.2025.11370000</a>","ieee":"L. Humpert, J. Graunke, G. Cichon, A. Ammanagi, A. Schierbaum, and R. Dumitrescu, “Generative AI in Systems Engineering: Automated Creation of System Architectures and Early-Stage Calculation in the B2B Sector,” 2026, doi: <a href=\"https://doi.org/10.1109/isse65546.2025.11370000\">10.1109/isse65546.2025.11370000</a>.","mla":"Humpert, Lynn, et al. “Generative AI in Systems Engineering: Automated Creation of System Architectures and Early-Stage Calculation in the B2B Sector.” <i>2025 IEEE International Symposium on Systems Engineering (ISSE)</i>, IEEE, 2026, doi:<a href=\"https://doi.org/10.1109/isse65546.2025.11370000\">10.1109/isse65546.2025.11370000</a>.","apa":"Humpert, L., Graunke, J., Cichon, G., Ammanagi, A., Schierbaum, A., &#38; Dumitrescu, R. (2026). Generative AI in Systems Engineering: Automated Creation of System Architectures and Early-Stage Calculation in the B2B Sector. <i>2025 IEEE International Symposium on Systems Engineering (ISSE)</i>. <a href=\"https://doi.org/10.1109/isse65546.2025.11370000\">https://doi.org/10.1109/isse65546.2025.11370000</a>"},"publication":"2025 IEEE International Symposium on Systems Engineering (ISSE)","doi":"10.1109/isse65546.2025.11370000","user_id":"15782","_id":"64075","publisher":"IEEE","language":[{"iso":"eng"}],"date_updated":"2026-02-09T14:52:40Z","publication_status":"published","author":[{"full_name":"Humpert, Lynn","first_name":"Lynn","last_name":"Humpert"},{"first_name":"Jannis","last_name":"Graunke","full_name":"Graunke, Jannis"},{"full_name":"Cichon, Gerrit","last_name":"Cichon","first_name":"Gerrit"},{"last_name":"Ammanagi","first_name":"Anuradha","full_name":"Ammanagi, Anuradha"},{"first_name":"Anja","last_name":"Schierbaum","full_name":"Schierbaum, Anja"},{"full_name":"Dumitrescu, Roman","last_name":"Dumitrescu","first_name":"Roman","id":"16190"}],"year":"2026","title":"Generative AI in Systems Engineering: Automated Creation of System Architectures and Early-Stage Calculation in the B2B Sector","status":"public"},{"publication":"Partizipative Forschung und Empowerment - Erkundungen in Feldern der Sozialen Arbeit ","citation":{"apa":"Vochatzer, S., Schorr, S., Lieb, D., Stange, L., &#38; Kamenik , A. M. (2026). Von der partizipativen Forschung zum Empowerment. Eine methodologische Bestimmung kollaborativer Autoethnografie . In C. Schär, S. Schnurr, H. Berner, F. Eßer, E. Richter, D. Rosenlecherner-Urbanek, &#38; W. Schröer (Eds.), <i>Partizipative Forschung und Empowerment - Erkundungen in Feldern der Sozialen Arbeit </i> (pp. 123–136). Beltz Juventa .","ieee":"S. Vochatzer, S. Schorr, D. Lieb, L. Stange, and A. M. Kamenik , “Von der partizipativen Forschung zum Empowerment. Eine methodologische Bestimmung kollaborativer Autoethnografie ,” in <i>Partizipative Forschung und Empowerment - Erkundungen in Feldern der Sozialen Arbeit </i>, C. Schär, S. Schnurr, H. Berner, F. Eßer, E. Richter, D. Rosenlecherner-Urbanek, and W. Schröer, Eds. Weinheim : Beltz Juventa , 2026, pp. 123–136.","short":"S. Vochatzer, S. Schorr, D. Lieb, L. Stange, A.M. Kamenik , in: C. Schär, S. Schnurr, H. Berner, F. Eßer, E. Richter, D. Rosenlecherner-Urbanek, W. Schröer (Eds.), Partizipative Forschung Und Empowerment - Erkundungen in Feldern Der Sozialen Arbeit , Beltz Juventa , Weinheim , 2026, pp. 123–136.","chicago":"Vochatzer, Stefanie, Sophia Schorr, Daniel  Lieb, Leah  Stange, and Anna Maria Kamenik . “Von Der Partizipativen Forschung Zum Empowerment. Eine Methodologische Bestimmung Kollaborativer Autoethnografie .” In <i>Partizipative Forschung Und Empowerment - Erkundungen in Feldern Der Sozialen Arbeit </i>, edited by Clarissa  Schär, Stefan Schnurr, Heiko Berner, Florian  Eßer, Elisabeth  Richter, Doris Rosenlecherner-Urbanek, and Wolfgang Schröer, 123–36. Weinheim : Beltz Juventa , 2026.","mla":"Vochatzer, Stefanie, et al. “Von Der Partizipativen Forschung Zum Empowerment. Eine Methodologische Bestimmung Kollaborativer Autoethnografie .” <i>Partizipative Forschung Und Empowerment - Erkundungen in Feldern Der Sozialen Arbeit </i>, edited by Clarissa  Schär et al., Beltz Juventa , 2026, pp. 123–36.","ama":"Vochatzer S, Schorr S, Lieb D, Stange L, Kamenik  AM. Von der partizipativen Forschung zum Empowerment. Eine methodologische Bestimmung kollaborativer Autoethnografie . In: Schär C, Schnurr S, Berner H, et al., eds. <i>Partizipative Forschung Und Empowerment - Erkundungen in Feldern Der Sozialen Arbeit </i>. Beltz Juventa ; 2026:123-136.","bibtex":"@inbook{Vochatzer_Schorr_Lieb_Stange_Kamenik _2026, place={Weinheim }, title={Von der partizipativen Forschung zum Empowerment. Eine methodologische Bestimmung kollaborativer Autoethnografie }, booktitle={Partizipative Forschung und Empowerment - Erkundungen in Feldern der Sozialen Arbeit }, publisher={Beltz Juventa }, author={Vochatzer, Stefanie and Schorr, Sophia and Lieb, Daniel  and Stange, Leah  and Kamenik , Anna Maria}, editor={Schär, Clarissa  and Schnurr, Stefan and Berner, Heiko and Eßer, Florian  and Richter, Elisabeth  and Rosenlecherner-Urbanek, Doris and Schröer, Wolfgang}, year={2026}, pages={123–136} }"},"type":"book_chapter","date_created":"2026-02-09T10:51:05Z","place":"Weinheim ","date_updated":"2026-02-09T10:51:15Z","status":"public","title":"Von der partizipativen Forschung zum Empowerment. Eine methodologische Bestimmung kollaborativer Autoethnografie ","year":"2026","author":[{"full_name":"Vochatzer, Stefanie","last_name":"Vochatzer","first_name":"Stefanie","id":"95153"},{"full_name":"Schorr, Sophia","first_name":"Sophia","last_name":"Schorr"},{"first_name":"Daniel ","last_name":"Lieb","full_name":"Lieb, Daniel "},{"full_name":"Stange, Leah ","first_name":"Leah ","last_name":"Stange"},{"last_name":"Kamenik ","first_name":"Anna Maria","full_name":"Kamenik , Anna Maria"}],"user_id":"95153","editor":[{"last_name":"Schär","first_name":"Clarissa ","full_name":"Schär, Clarissa "},{"first_name":"Stefan","last_name":"Schnurr","full_name":"Schnurr, Stefan"},{"last_name":"Berner","first_name":"Heiko","full_name":"Berner, Heiko"},{"last_name":"Eßer","first_name":"Florian ","full_name":"Eßer, Florian "},{"last_name":"Richter","first_name":"Elisabeth ","full_name":"Richter, Elisabeth "},{"first_name":"Doris","last_name":"Rosenlecherner-Urbanek","full_name":"Rosenlecherner-Urbanek, Doris"},{"full_name":"Schröer, Wolfgang","last_name":"Schröer","first_name":"Wolfgang"}],"page":"123-136","_id":"64072","language":[{"iso":"eng"}],"publisher":"Beltz Juventa "},{"author":[{"id":"94632","full_name":"Hollenbach, Johannes","last_name":"Hollenbach","first_name":"Johannes","orcid":"0009-0006-2008-0564"},{"id":"48879","full_name":"Schmitz, Hendrik","first_name":"Hendrik","last_name":"Schmitz"},{"full_name":"Tawiah, Beatrice Baaba","last_name":"Tawiah","first_name":"Beatrice Baaba"}],"publication_identifier":{"issn":["1618-7598","1618-7601"]},"title":"Life-cycle health effects of compulsory schooling","status":"public","year":"2026","date_updated":"2026-02-11T09:27:18Z","publication_status":"published","_id":"64109","publisher":"Springer Science and Business Media LLC","language":[{"iso":"eng"}],"doi":"10.1007/s10198-025-01884-2","user_id":"37953","citation":{"bibtex":"@article{Hollenbach_Schmitz_Tawiah_2026, title={Life-cycle health effects of compulsory schooling}, DOI={<a href=\"https://doi.org/10.1007/s10198-025-01884-2\">10.1007/s10198-025-01884-2</a>}, journal={The European Journal of Health Economics}, publisher={Springer Science and Business Media LLC}, author={Hollenbach, Johannes and Schmitz, Hendrik and Tawiah, Beatrice Baaba}, year={2026} }","ama":"Hollenbach J, Schmitz H, Tawiah BB. Life-cycle health effects of compulsory schooling. <i>The European Journal of Health Economics</i>. Published online 2026. doi:<a href=\"https://doi.org/10.1007/s10198-025-01884-2\">10.1007/s10198-025-01884-2</a>","mla":"Hollenbach, Johannes, et al. “Life-Cycle Health Effects of Compulsory Schooling.” <i>The European Journal of Health Economics</i>, Springer Science and Business Media LLC, 2026, doi:<a href=\"https://doi.org/10.1007/s10198-025-01884-2\">10.1007/s10198-025-01884-2</a>.","short":"J. Hollenbach, H. Schmitz, B.B. Tawiah, The European Journal of Health Economics (2026).","chicago":"Hollenbach, Johannes, Hendrik Schmitz, and Beatrice Baaba Tawiah. “Life-Cycle Health Effects of Compulsory Schooling.” <i>The European Journal of Health Economics</i>, 2026. <a href=\"https://doi.org/10.1007/s10198-025-01884-2\">https://doi.org/10.1007/s10198-025-01884-2</a>.","ieee":"J. Hollenbach, H. Schmitz, and B. B. Tawiah, “Life-cycle health effects of compulsory schooling,” <i>The European Journal of Health Economics</i>, 2026, doi: <a href=\"https://doi.org/10.1007/s10198-025-01884-2\">10.1007/s10198-025-01884-2</a>.","apa":"Hollenbach, J., Schmitz, H., &#38; Tawiah, B. B. (2026). Life-cycle health effects of compulsory schooling. <i>The European Journal of Health Economics</i>. <a href=\"https://doi.org/10.1007/s10198-025-01884-2\">https://doi.org/10.1007/s10198-025-01884-2</a>"},"publication":"The European Journal of Health Economics","abstract":[{"lang":"eng","text":"<jats:title>Abstract</jats:title>\r\n                  <jats:p>We study the effect of education on health (hospital stays, number of diagnosed conditions, poor or bad self-rated health, and body mass index) over the life cycle, using German compulsory schooling reforms as a source of exogenous variation. Our results show clear correlations between educational attainment and better health across all age groups (30 to 74). However, we do not find causal relationships between additional schooling and health or health care utilization, neither earlier nor later in life. A simulated ex-post power analysis shows that this is not due to a lack of statistical power. One reason for the absence of effects may be that the studied compulsory schooling reforms succeeded in raising the educational attainment of the target group - individuals at the lowest educational margin - but did not lead to healthier employment opportunities.</jats:p>"}],"date_created":"2026-02-11T09:26:04Z","department":[{"_id":"281"},{"_id":"475"}],"type":"journal_article"},{"abstract":[{"text":"<jats:title>Abstract</jats:title>\r\n                  <jats:p>We study how gene-environment interactions between education and genetic endowments affect cognition in old age and use this setting to show that – even with a valid instrument – two-stage least squares (2SLS) estimates of interaction effects can be far away from the true effect. This is the case when treatment effects are heterogeneous and compliance to the instrument depends on the interaction variable. We suggest estimating marginal treatment effects to address this problem. Our estimation results show complementarities between education and genetic predisposition in determining later-life memory. The marginal treatment effect estimates suggest substantially larger gene-environment interactions than the 2SLS estimates.</jats:p>","lang":"eng"}],"publication":"The Economic Journal","citation":{"apa":"Hollenbach, J., Schmitz, H., &#38; Westphal, M. (2026). Gene-environment interactions with essential heterogeneity. <i>The Economic Journal</i>, Article ueag010. <a href=\"https://doi.org/10.1093/ej/ueag010\">https://doi.org/10.1093/ej/ueag010</a>","ieee":"J. Hollenbach, H. Schmitz, and M. Westphal, “Gene-environment interactions with essential heterogeneity,” <i>The Economic Journal</i>, Art. no. ueag010, 2026, doi: <a href=\"https://doi.org/10.1093/ej/ueag010\">10.1093/ej/ueag010</a>.","short":"J. Hollenbach, H. Schmitz, M. Westphal, The Economic Journal (2026).","chicago":"Hollenbach, Johannes, Hendrik Schmitz, and Matthias Westphal. “Gene-Environment Interactions with Essential Heterogeneity.” <i>The Economic Journal</i>, 2026. <a href=\"https://doi.org/10.1093/ej/ueag010\">https://doi.org/10.1093/ej/ueag010</a>.","mla":"Hollenbach, Johannes, et al. “Gene-Environment Interactions with Essential Heterogeneity.” <i>The Economic Journal</i>, ueag010, Oxford University Press (OUP), 2026, doi:<a href=\"https://doi.org/10.1093/ej/ueag010\">10.1093/ej/ueag010</a>.","ama":"Hollenbach J, Schmitz H, Westphal M. Gene-environment interactions with essential heterogeneity. <i>The Economic Journal</i>. Published online 2026. doi:<a href=\"https://doi.org/10.1093/ej/ueag010\">10.1093/ej/ueag010</a>","bibtex":"@article{Hollenbach_Schmitz_Westphal_2026, title={Gene-environment interactions with essential heterogeneity}, DOI={<a href=\"https://doi.org/10.1093/ej/ueag010\">10.1093/ej/ueag010</a>}, number={ueag010}, journal={The Economic Journal}, publisher={Oxford University Press (OUP)}, author={Hollenbach, Johannes and Schmitz, Hendrik and Westphal, Matthias}, year={2026} }"},"type":"journal_article","department":[{"_id":"281"},{"_id":"475"}],"date_created":"2026-02-11T09:20:49Z","publication_status":"published","date_updated":"2026-02-11T09:23:15Z","status":"public","title":"Gene-environment interactions with essential heterogeneity","year":"2026","publication_identifier":{"issn":["0013-0133","1468-0297"]},"author":[{"first_name":"Johannes","orcid":"0009-0006-2008-0564","last_name":"Hollenbach","full_name":"Hollenbach, Johannes","id":"94632"},{"full_name":"Schmitz, Hendrik","first_name":"Hendrik","last_name":"Schmitz","id":"48879"},{"full_name":"Westphal, Matthias","last_name":"Westphal","first_name":"Matthias"}],"user_id":"37953","doi":"10.1093/ej/ueag010","article_number":"ueag010","language":[{"iso":"eng"}],"_id":"64108","publisher":"Oxford University Press (OUP)"},{"type":"journal_article","oa":"1","department":[{"_id":"477"}],"date_created":"2026-01-27T16:18:34Z","publication":"die hochschullehre","citation":{"bibtex":"@article{ Hallmann_Mahs_Grant _Baier_ Cerezo Alarcon_Kepper_Steinhardt_2026, title={Selbstgesteuertes Lernen, Partizipation und das 4K-Modell. Lehre in der Kultur der Digitalität}, DOI={<a href=\"https://doi.org/10.3278/HSL2602W\">10.3278/HSL2602W</a>}, journal={die hochschullehre}, author={ Hallmann, Nicole and Mahs, Marie and Grant , Lloyd-Spencer and Baier, Marla Ricarda and  Cerezo Alarcon, Alina Luisa and Kepper, Florian  and Steinhardt, Isabel}, year={2026} }","ama":"Hallmann N, Mahs M, Grant  L-S, et al. Selbstgesteuertes Lernen, Partizipation und das 4K-Modell. Lehre in der Kultur der Digitalität. <i>die hochschullehre</i>. Published online 2026. doi:<a href=\"https://doi.org/10.3278/HSL2602W\">10.3278/HSL2602W</a>","mla":"Hallmann, Nicole, et al. “Selbstgesteuertes Lernen, Partizipation Und Das 4K-Modell. Lehre in Der Kultur Der Digitalität.” <i>Die Hochschullehre</i>, 2026, doi:<a href=\"https://doi.org/10.3278/HSL2602W\">10.3278/HSL2602W</a>.","short":"N.  Hallmann, M. Mahs, L.-S. Grant , M.R. Baier, A.L.  Cerezo Alarcon, F. Kepper, I. Steinhardt, Die Hochschullehre (2026).","chicago":"Hallmann, Nicole, Marie Mahs, Lloyd-Spencer Grant , Marla Ricarda Baier, Alina Luisa  Cerezo Alarcon, Florian  Kepper, and Isabel Steinhardt. “Selbstgesteuertes Lernen, Partizipation Und Das 4K-Modell. Lehre in Der Kultur Der Digitalität.” <i>Die Hochschullehre</i>, 2026. <a href=\"https://doi.org/10.3278/HSL2602W\">https://doi.org/10.3278/HSL2602W</a>.","ieee":"N.  Hallmann <i>et al.</i>, “Selbstgesteuertes Lernen, Partizipation und das 4K-Modell. Lehre in der Kultur der Digitalität,” <i>die hochschullehre</i>, 2026, doi: <a href=\"https://doi.org/10.3278/HSL2602W\">10.3278/HSL2602W</a>.","apa":"Hallmann, N., Mahs, M., Grant , L.-S., Baier, M. R.,  Cerezo Alarcon, A. L., Kepper, F., &#38; Steinhardt, I. (2026). Selbstgesteuertes Lernen, Partizipation und das 4K-Modell. Lehre in der Kultur der Digitalität. <i>Die Hochschullehre</i>. <a href=\"https://doi.org/10.3278/HSL2602W\">https://doi.org/10.3278/HSL2602W</a>"},"doi":"10.3278/HSL2602W","user_id":"68193","main_file_link":[{"open_access":"1","url":"https://www.wbv.de/shop/Selbstgesteuertes-Lernen-Partizipation-und-das-4K-Modell.-Lehre-in-der-Kultur-der-Digitalitaet-HSL2602W"}],"_id":"63777","language":[{"iso":"eng"}],"date_updated":"2026-02-11T12:09:42Z","status":"public","year":"2026","title":"Selbstgesteuertes Lernen, Partizipation und das 4K-Modell. Lehre in der Kultur der Digitalität","author":[{"full_name":" Hallmann, Nicole","first_name":"Nicole","last_name":" Hallmann"},{"full_name":"Mahs, Marie","first_name":"Marie","last_name":"Mahs"},{"last_name":"Grant ","first_name":"Lloyd-Spencer","full_name":"Grant , Lloyd-Spencer"},{"full_name":"Baier, Marla Ricarda","first_name":"Marla Ricarda","last_name":"Baier","id":"68193"},{"full_name":" Cerezo Alarcon, Alina Luisa","last_name":" Cerezo Alarcon","first_name":"Alina Luisa"},{"full_name":"Kepper, Florian ","last_name":"Kepper","first_name":"Florian "},{"full_name":"Steinhardt, Isabel","first_name":"Isabel","last_name":"Steinhardt","orcid":"https://orcid.org/0000-0002-2590-6189","id":"90339"}]},{"ddc":["006"],"user_id":"88024","volume":33,"_id":"63834","publisher":"Springer Science and Business Media LLC","has_accepted_license":"1","status":"public","file_date_updated":"2026-02-11T18:32:52Z","citation":{"ieee":"M. Khedkar, A. Kumar Mondal, and E. Bodden, “A study of privacy-related data collected by Android apps,” <i>Automated Software Engineering</i>, vol. 33, no. 2, Art. no. 45, 2026, doi: <a href=\"https://doi.org/10.1007/s10515-025-00589-3\">10.1007/s10515-025-00589-3</a>.","apa":"Khedkar, M., Kumar Mondal, A., &#38; Bodden, E. (2026). A study of privacy-related data collected by Android apps. <i>Automated Software Engineering</i>, <i>33</i>(2), Article 45. <a href=\"https://doi.org/10.1007/s10515-025-00589-3\">https://doi.org/10.1007/s10515-025-00589-3</a>","chicago":"Khedkar, Mugdha, Ambuj Kumar Mondal, and Eric Bodden. “A Study of Privacy-Related Data Collected by Android Apps.” <i>Automated Software Engineering</i> 33, no. 2 (2026). <a href=\"https://doi.org/10.1007/s10515-025-00589-3\">https://doi.org/10.1007/s10515-025-00589-3</a>.","short":"M. Khedkar, A. Kumar Mondal, E. Bodden, Automated Software Engineering 33 (2026).","mla":"Khedkar, Mugdha, et al. “A Study of Privacy-Related Data Collected by Android Apps.” <i>Automated Software Engineering</i>, vol. 33, no. 2, 45, Springer Science and Business Media LLC, 2026, doi:<a href=\"https://doi.org/10.1007/s10515-025-00589-3\">10.1007/s10515-025-00589-3</a>.","bibtex":"@article{Khedkar_Kumar Mondal_Bodden_2026, title={A study of privacy-related data collected by Android apps}, volume={33}, DOI={<a href=\"https://doi.org/10.1007/s10515-025-00589-3\">10.1007/s10515-025-00589-3</a>}, number={245}, journal={Automated Software Engineering}, publisher={Springer Science and Business Media LLC}, author={Khedkar, Mugdha and Kumar Mondal, Ambuj and Bodden, Eric}, year={2026} }","ama":"Khedkar M, Kumar Mondal A, Bodden E. A study of privacy-related data collected by Android apps. <i>Automated Software Engineering</i>. 2026;33(2). doi:<a href=\"https://doi.org/10.1007/s10515-025-00589-3\">10.1007/s10515-025-00589-3</a>"},"doi":"10.1007/s10515-025-00589-3","article_number":"45","language":[{"iso":"eng"}],"date_updated":"2026-02-11T18:33:12Z","publication_status":"published","intvolume":"        33","year":"2026","title":"A study of privacy-related data collected by Android apps","author":[{"id":"88024","full_name":"Khedkar, Mugdha","first_name":"Mugdha","last_name":"Khedkar"},{"full_name":"Kumar Mondal, Ambuj","first_name":"Ambuj","last_name":"Kumar Mondal"},{"id":"59256","last_name":"Bodden","first_name":"Eric","orcid":"0000-0003-3470-3647","full_name":"Bodden, Eric"}],"publication_identifier":{"issn":["0928-8910","1573-7535"]},"type":"journal_article","department":[{"_id":"76"}],"file":[{"date_created":"2026-02-11T18:32:52Z","creator":"khedkarm","content_type":"application/pdf","success":1,"file_id":"64127","access_level":"closed","file_size":3363479,"file_name":"s10515-025-00589-3-1.pdf","date_updated":"2026-02-11T18:32:52Z","relation":"main_file"}],"date_created":"2026-02-02T12:36:22Z","abstract":[{"text":"<jats:title>Abstract</jats:title>\r\n                  <jats:p>\r\n                    Many Android apps collect data from users, and the European Union’s General Data Protection Regulation (GDPR) mandates clear disclosures of such data collection. However, apps often use third-party code, complicating accurate disclosures. This paper investigates how accurately current Android apps fulfill these requirements. In this work, we present a multi-layered definition of privacy-related data to correctly report data collection in Android apps. We further create a dataset of privacy-sensitive data classes that may be used as input by an Android app. This dataset takes into account data collected both through the user interface and system APIs. Based on this, we implement a semi-automated prototype that detects and labels privacy-related data collected by a given Android app. We manually examine the data safety sections of 70 Android apps to observe how data collection is reported, identifying instances of over- and under-reporting. We compare our prototype’s results with the data safety sections of 20 apps revealing reporting discrepancies. Using the results from two Messaging and Social Media apps (Signal and Instagram), we discuss how app developers under-report and over-report data collection, respectively, and identify inaccurately reported data categories. A broader study of 7,500 Android apps reveals that apps most frequently collect data that can\r\n                    <jats:italic>partially identify</jats:italic>\r\n                    users. Although system APIs consistently collect large amounts of privacy-related data, user interfaces exhibit some more diverse data collection patterns. A more focused study on various domains of apps reveals that the largest fraction of apps collecting personal data belong to the domain of\r\n                    <jats:italic>Messaging and Social Media</jats:italic>\r\n                    . Our findings show that location is collected frequently by apps, specially from the\r\n                    <jats:italic>E-commerce and Shopping</jats:italic>\r\n                    domain. However, it is often under-reported in app data safety sections. Our results highlight the need for greater consistency in privacy-aware app development and reporting practices.\r\n                  </jats:p>","lang":"eng"}],"publication":"Automated Software Engineering","issue":"2"}]