[{"project":[{"_id":"298","name":"FOR 2863: Metrologie für die THz Kommunikation (Meteracom)"},{"name":"FOR 2863: Metrologie für die THz Kommunikation, TP: Ultrabreitbandige Abtastung","_id":"308"},{"_id":"313","name":"FOR 2863: Metrologie für die THz Kommunikation, TP C3: Skalierbares THz Transceiver Impairment Modell"}],"citation":{"chicago":"Weizel, Maxim, Meysam Bahmanian, and J. Christoph Scheytt. “Integrated Photonically Assisted Samplers.” In Metrology for THz Communications. Cham: Springer Nature Switzerland, 2026. https://doi.org/10.1007/978-3-032-01986-8_29.","ama":"Weizel M, Bahmanian M, Scheytt JC. Integrated Photonically Assisted Samplers. In: Metrology for THz Communications. Springer Nature Switzerland; 2026. doi:10.1007/978-3-032-01986-8_29","short":"M. Weizel, M. Bahmanian, J.C. Scheytt, in: Metrology for THz Communications, Springer Nature Switzerland, Cham, 2026.","bibtex":"@inbook{Weizel_Bahmanian_Scheytt_2026, place={Cham}, title={Integrated Photonically Assisted Samplers}, DOI={10.1007/978-3-032-01986-8_29}, booktitle={Metrology for THz Communications}, publisher={Springer Nature Switzerland}, author={Weizel, Maxim and Bahmanian, Meysam and Scheytt, J. Christoph}, year={2026} }","mla":"Weizel, Maxim, et al. “Integrated Photonically Assisted Samplers.” Metrology for THz Communications, Springer Nature Switzerland, 2026, doi:10.1007/978-3-032-01986-8_29.","apa":"Weizel, M., Bahmanian, M., & Scheytt, J. C. (2026). Integrated Photonically Assisted Samplers. In Metrology for THz Communications. Springer Nature Switzerland. https://doi.org/10.1007/978-3-032-01986-8_29","ieee":"M. Weizel, M. Bahmanian, and J. C. Scheytt, “Integrated Photonically Assisted Samplers,” in Metrology for THz Communications, Cham: Springer Nature Switzerland, 2026."},"oa":"1","place":"Cham","status":"public","user_id":"44271","_id":"65601","publisher":"Springer Nature Switzerland","abstract":[{"lang":"eng","text":"High-speed ADCs operating in the tens of gigahertz up to potentially terahertz range are largely constrained by the jitter in their clock sources. By incorporating photonically assisted samplers that exploit the ultralow jitter of specific mode-locked lasers (MLLs) as analogue ADC frontends, the performance limits of data converters can be pushed to achieve unprecedented levels of accuracy. Continuous advancements in electronic-photonic integration (silicon photonics) are clearing the path for integrating these systems on a chip scale, thereby leading to increased scalability, as well as reduced cost and power consumption."}],"publication":"Metrology for THz Communications","department":[{"_id":"58"}],"type":"book_chapter","date_created":"2026-05-11T07:51:04Z","publication_status":"published","date_updated":"2026-05-11T07:58:06Z","author":[{"id":"44271","full_name":"Weizel, Maxim","last_name":"Weizel","orcid":"0000-0003-2699-9839","first_name":"Maxim"},{"id":"69233","last_name":"Bahmanian","first_name":"Meysam","full_name":"Bahmanian, Meysam"},{"id":"37144","orcid":"0000-0002-5950-6618 ","first_name":"J. Christoph","last_name":"Scheytt","full_name":"Scheytt, J. Christoph"}],"publication_identifier":{"issn":["0342-4111","1556-1534"],"isbn":["9783032019851","9783032019868"]},"year":"2026","title":"Integrated Photonically Assisted Samplers","doi":"10.1007/978-3-032-01986-8_29","language":[{"iso":"eng"}],"main_file_link":[{"url":"https://link.springer.com/content/pdf/10.1007/978-3-032-01986-8.pdf","open_access":"1"}]},{"place":"Cham","oa":"1","citation":{"apa":"Wrana, D., Weizel, M., Haussmann, S., Bahmanian, M., Kallfass, I., & Scheytt, J. C. (2026). Simulation and Modelling of Electronic and Photonic Components. In Metrology for THz Communications. Springer Nature Switzerland. https://doi.org/10.1007/978-3-032-01986-8_36","ieee":"D. Wrana, M. Weizel, S. Haussmann, M. Bahmanian, I. Kallfass, and J. C. Scheytt, “Simulation and Modelling of Electronic and Photonic Components,” in Metrology for THz Communications, Cham: Springer Nature Switzerland, 2026.","chicago":"Wrana, Dominik, Maxim Weizel, Simon Haussmann, Meysam Bahmanian, Ingmar Kallfass, and J. Christoph Scheytt. “Simulation and Modelling of Electronic and Photonic Components.” In Metrology for THz Communications. Cham: Springer Nature Switzerland, 2026. https://doi.org/10.1007/978-3-032-01986-8_36.","short":"D. Wrana, M. Weizel, S. Haussmann, M. Bahmanian, I. Kallfass, J.C. Scheytt, in: Metrology for THz Communications, Springer Nature Switzerland, Cham, 2026.","mla":"Wrana, Dominik, et al. “Simulation and Modelling of Electronic and Photonic Components.” Metrology for THz Communications, Springer Nature Switzerland, 2026, doi:10.1007/978-3-032-01986-8_36.","ama":"Wrana D, Weizel M, Haussmann S, Bahmanian M, Kallfass I, Scheytt JC. Simulation and Modelling of Electronic and Photonic Components. In: Metrology for THz Communications. Springer Nature Switzerland; 2026. doi:10.1007/978-3-032-01986-8_36","bibtex":"@inbook{Wrana_Weizel_Haussmann_Bahmanian_Kallfass_Scheytt_2026, place={Cham}, title={Simulation and Modelling of Electronic and Photonic Components}, DOI={10.1007/978-3-032-01986-8_36}, booktitle={Metrology for THz Communications}, publisher={Springer Nature Switzerland}, author={Wrana, Dominik and Weizel, Maxim and Haussmann, Simon and Bahmanian, Meysam and Kallfass, Ingmar and Scheytt, J. Christoph}, year={2026} }"},"project":[{"_id":"298","name":"FOR 2863: Metrologie für die THz Kommunikation (Meteracom)"},{"_id":"308","name":"FOR 2863: Metrologie für die THz Kommunikation, TP: Ultrabreitbandige Abtastung"},{"_id":"313","name":"FOR 2863: Metrologie für die THz Kommunikation, TP C3: Skalierbares THz Transceiver Impairment Modell"}],"_id":"65602","publisher":"Springer Nature Switzerland","user_id":"44271","status":"public","date_created":"2026-05-11T07:58:34Z","type":"book_chapter","department":[{"_id":"58"}],"publication":"Metrology for THz Communications","abstract":[{"lang":"eng","text":"This chapter explores the crucial role of simulation and modelling of electronic and photonic components for terahertz (THz) systems. THz-related challenges already begin with setting up the signal generation and sampling parameters and continue with the realistic modelling of the electronic and photonic building blocks. Hereby, photonic components require not only the modelling of the optical signal propagation but also the modelling of the electronic interface in the THz regime. Furthermore, when advancing to the simulation of systems like fully integrated electronic transmit and receive frontends or photonically assisted analogue-to-digital converters (ADCs), it is up to the designer to find a suitable level of abstraction. Size, complexity, and available computational power versus accuracy must be taken into consideration and prioritized against each other."}],"main_file_link":[{"open_access":"1","url":"https://link.springer.com/content/pdf/10.1007/978-3-032-01986-8.pdf"}],"language":[{"iso":"eng"}],"doi":"10.1007/978-3-032-01986-8_36","year":"2026","title":"Simulation and Modelling of Electronic and Photonic Components","author":[{"last_name":"Wrana","first_name":"Dominik","full_name":"Wrana, Dominik"},{"full_name":"Weizel, Maxim","last_name":"Weizel","first_name":"Maxim"},{"full_name":"Haussmann, Simon","last_name":"Haussmann","first_name":"Simon"},{"full_name":"Bahmanian, Meysam","first_name":"Meysam","last_name":"Bahmanian"},{"last_name":"Kallfass","first_name":"Ingmar","full_name":"Kallfass, Ingmar"},{"first_name":"J. Christoph","last_name":"Scheytt","full_name":"Scheytt, J. Christoph"}],"publication_identifier":{"issn":["0342-4111","1556-1534"],"isbn":["9783032019851","9783032019868"]},"publication_status":"published","date_updated":"2026-05-11T09:28:52Z"},{"citation":{"mla":"Turhan, Anni-Yasmin, and Jonni Virtema, editors. Foundations of Information and Knowledge Systems - 14th International Symposium, FoIKS 2026, Hanover, Germany, March 23-26, 2026, Proceedings. Springer, 2026, doi:10.1007/978-3-032-21540-6.","bibtex":"@book{Turhan_Virtema_2026, series={Lecture Notes in Computer Science}, title={Foundations of Information and Knowledge Systems - 14th International Symposium, FoIKS 2026, Hanover, Germany, March 23-26, 2026, Proceedings}, volume={16475}, DOI={10.1007/978-3-032-21540-6}, publisher={Springer}, year={2026}, collection={Lecture Notes in Computer Science} }","ama":"Turhan A-Y, Virtema J, eds. Foundations of Information and Knowledge Systems - 14th International Symposium, FoIKS 2026, Hanover, Germany, March 23-26, 2026, Proceedings. Vol 16475. Springer; 2026. doi:10.1007/978-3-032-21540-6","ieee":"A.-Y. Turhan and J. Virtema, Eds., Foundations of Information and Knowledge Systems - 14th International Symposium, FoIKS 2026, Hanover, Germany, March 23-26, 2026, Proceedings, vol. 16475. Springer, 2026.","apa":"Turhan, A.-Y., & Virtema, J. (Eds.). (2026). Foundations of Information and Knowledge Systems - 14th International Symposium, FoIKS 2026, Hanover, Germany, March 23-26, 2026, Proceedings (Vol. 16475). Springer. https://doi.org/10.1007/978-3-032-21540-6","short":"A.-Y. Turhan, J. Virtema, eds., Foundations of Information and Knowledge Systems - 14th International Symposium, FoIKS 2026, Hanover, Germany, March 23-26, 2026, Proceedings, Springer, 2026.","chicago":"Turhan, Anni-Yasmin, and Jonni Virtema, eds. Foundations of Information and Knowledge Systems - 14th International Symposium, FoIKS 2026, Hanover, Germany, March 23-26, 2026, Proceedings. Vol. 16475. Lecture Notes in Computer Science. Springer, 2026. https://doi.org/10.1007/978-3-032-21540-6."},"type":"conference_editor","date_created":"2026-05-11T08:46:09Z","date_updated":"2026-05-11T08:50:25Z","intvolume":" 16475","status":"public","title":"Foundations of Information and Knowledge Systems - 14th International Symposium, FoIKS 2026, Hanover, Germany, March 23-26, 2026, Proceedings","year":"2026","publication_identifier":{"isbn":["978-3-032-21539-0"]},"user_id":"117185","doi":"10.1007/978-3-032-21540-6","volume":16475,"editor":[{"full_name":"Turhan, Anni-Yasmin","first_name":"Anni-Yasmin","last_name":"Turhan","id":"104470"},{"last_name":"Virtema","first_name":"Jonni","full_name":"Virtema, Jonni"}],"language":[{"iso":"eng"}],"_id":"65605","series_title":"Lecture Notes in Computer Science","publisher":"Springer"},{"intvolume":" 31","date_updated":"2026-05-12T11:54:07Z","publication_status":"published","publication_identifier":{"issn":["1435-4934"]},"author":[{"last_name":"Dargel","first_name":"Alrik","full_name":"Dargel, Alrik"},{"full_name":"Troschitz, Juliane","first_name":"Juliane","last_name":"Troschitz"},{"first_name":"Maik","last_name":"Gude","full_name":"Gude, Maik"},{"full_name":"Kupfer, Robert","first_name":"Robert","last_name":"Kupfer"}],"title":"In-situ CT of Viscoelastic Plastic Materials: A Radiography-Based Lead Time Determination for Composite–Metal Joints at Elevated Temperature","year":"2026","doi":"10.58286/32601","language":[{"iso":"eng"}],"main_file_link":[{"url":"https://www.ndt.net/search/docs.php3?id=32601"}],"abstract":[{"text":"In-situ computed tomography (CT) experiments on materials with time-dependent mechanical behaviour are affected by relaxationinduced motion, which can lead to image blur and motion-related artefacts if scans are initiated before relaxation-induced motion has subsided. Scan start times are therefore commonly defined based on force relaxation or force-gradient criteria, although these signals do not directly quantify image-relevant specimen motion. In this work, a radiography-based approach is presented to estimate relaxation-induced motion via pixel shifts from projection images acquired prior to CT scans. These projection-based pixel shift estimates of relaxation-induced motion are related to scan-specific image blur observed in the reconstructed volumes. Thereby, a direct link between specimen motion during the scan and CT image quality is established. The method is demonstrated for thermo-mechanically loaded specimens with pronounced temperature-dependent material behaviour, where relaxation-induced motion persists over extended time scales. The results show that projection-based pixel shift estimation provides a physically meaningful and experimentally accessible basis for defining scan start criteria. CT acquisition can be initiated based on an allowable level of relaxation-induced motion, rather than waiting for mechanical equilibrium to be reached. The proposed approach therefore offers a direct, image-related framework for scan timing in in-situ CT experiments on time-dependent materials.","lang":"eng"}],"publication":"e-Journal of Nondestructive Testing","issue":"3","type":"conference","date_created":"2026-05-07T08:46:18Z","status":"public","volume":31,"user_id":"7850","_id":"65577","publisher":"NDT.net GmbH & Co. KG","project":[{"_id":"148","name":"TRR 285 - Subproject C04"},{"name":"TRR 285 - Project Area C","_id":"133"},{"_id":"130","name":"TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten"}],"citation":{"bibtex":"@inproceedings{Dargel_Troschitz_Gude_Kupfer_2026, title={In-situ CT of Viscoelastic Plastic Materials: A Radiography-Based Lead Time Determination for Composite–Metal Joints at Elevated Temperature}, volume={31}, DOI={10.58286/32601}, number={3}, booktitle={e-Journal of Nondestructive Testing}, publisher={NDT.net GmbH & Co. KG}, author={Dargel, Alrik and Troschitz, Juliane and Gude, Maik and Kupfer, Robert}, year={2026} }","ama":"Dargel A, Troschitz J, Gude M, Kupfer R. In-situ CT of Viscoelastic Plastic Materials: A Radiography-Based Lead Time Determination for Composite–Metal Joints at Elevated Temperature. In: E-Journal of Nondestructive Testing. Vol 31. NDT.net GmbH & Co. KG; 2026. doi:10.58286/32601","mla":"Dargel, Alrik, et al. “In-Situ CT of Viscoelastic Plastic Materials: A Radiography-Based Lead Time Determination for Composite–Metal Joints at Elevated Temperature.” E-Journal of Nondestructive Testing, vol. 31, no. 3, NDT.net GmbH & Co. KG, 2026, doi:10.58286/32601.","short":"A. Dargel, J. Troschitz, M. Gude, R. Kupfer, in: E-Journal of Nondestructive Testing, NDT.net GmbH & Co. KG, 2026.","chicago":"Dargel, Alrik, Juliane Troschitz, Maik Gude, and Robert Kupfer. “In-Situ CT of Viscoelastic Plastic Materials: A Radiography-Based Lead Time Determination for Composite–Metal Joints at Elevated Temperature.” In E-Journal of Nondestructive Testing, Vol. 31. NDT.net GmbH & Co. KG, 2026. https://doi.org/10.58286/32601.","ieee":"A. Dargel, J. Troschitz, M. Gude, and R. Kupfer, “In-situ CT of Viscoelastic Plastic Materials: A Radiography-Based Lead Time Determination for Composite–Metal Joints at Elevated Temperature,” in e-Journal of Nondestructive Testing, 2026, vol. 31, no. 3, doi: 10.58286/32601.","apa":"Dargel, A., Troschitz, J., Gude, M., & Kupfer, R. (2026). In-situ CT of Viscoelastic Plastic Materials: A Radiography-Based Lead Time Determination for Composite–Metal Joints at Elevated Temperature. E-Journal of Nondestructive Testing, 31(3). https://doi.org/10.58286/32601"}},{"quality_controlled":"1","project":[{"_id":"133","name":"TRR 285 - Project Area C"},{"_id":"149","name":"TRR 285 - Subproject C05"},{"_id":"130","name":"TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten"}],"citation":{"ieee":"L. Butzhammer, “Conversion between detector- and rotary-table-related misalignment parameterisations for unified projection-matrix-based geometry calibration in dimensional X-ray computed tomography,” Precision Engineering, vol. 100, pp. 377–400, 2026, doi: 10.1016/j.precisioneng.2026.03.015.","mla":"Butzhammer, Lorenz. “Conversion between Detector- and Rotary-Table-Related Misalignment Parameterisations for Unified Projection-Matrix-Based Geometry Calibration in Dimensional X-Ray Computed Tomography.” Precision Engineering, vol. 100, Elsevier BV, 2026, pp. 377–400, doi:10.1016/j.precisioneng.2026.03.015.","apa":"Butzhammer, L. (2026). Conversion between detector- and rotary-table-related misalignment parameterisations for unified projection-matrix-based geometry calibration in dimensional X-ray computed tomography. Precision Engineering, 100, 377–400. https://doi.org/10.1016/j.precisioneng.2026.03.015","bibtex":"@article{Butzhammer_2026, title={Conversion between detector- and rotary-table-related misalignment parameterisations for unified projection-matrix-based geometry calibration in dimensional X-ray computed tomography}, volume={100}, DOI={10.1016/j.precisioneng.2026.03.015}, journal={Precision Engineering}, publisher={Elsevier BV}, author={Butzhammer, Lorenz}, year={2026}, pages={377–400} }","short":"L. Butzhammer, Precision Engineering 100 (2026) 377–400.","ama":"Butzhammer L. Conversion between detector- and rotary-table-related misalignment parameterisations for unified projection-matrix-based geometry calibration in dimensional X-ray computed tomography. Precision Engineering. 2026;100:377-400. doi:10.1016/j.precisioneng.2026.03.015","chicago":"Butzhammer, Lorenz. “Conversion between Detector- and Rotary-Table-Related Misalignment Parameterisations for Unified Projection-Matrix-Based Geometry Calibration in Dimensional X-Ray Computed Tomography.” Precision Engineering 100 (2026): 377–400. https://doi.org/10.1016/j.precisioneng.2026.03.015."},"oa":"1","status":"public","user_id":"7850","volume":100,"page":"377-400","publisher":"Elsevier BV","_id":"65153","publication":"Precision Engineering","type":"journal_article","department":[{"_id":"630"}],"date_created":"2026-03-26T15:25:23Z","publication_status":"published","date_updated":"2026-05-12T11:38:52Z","article_type":"original","intvolume":" 100","year":"2026","title":"Conversion between detector- and rotary-table-related misalignment parameterisations for unified projection-matrix-based geometry calibration in dimensional X-ray computed tomography","author":[{"full_name":"Butzhammer, Lorenz","first_name":"Lorenz","last_name":"Butzhammer"}],"publication_identifier":{"issn":["0141-6359"]},"doi":"10.1016/j.precisioneng.2026.03.015","main_file_link":[{"url":"https://www.sciencedirect.com/science/article/pii/S0141635926000851/pdfft?md5=5f0cd152522e4ff286a245f033269774&pid=1-s2.0-S0141635926000851-main.pdf","open_access":"1"}],"language":[{"iso":"eng"}]},{"date_updated":"2026-05-12T14:06:08Z","publication_status":"published","intvolume":" 1185","title":"A Numerical Study on the Mutual Influence of Joint Orientation and Component Geometry in Non-Rotationally Symmetric Clinched Joints","year":"2026","author":[{"full_name":"Devulapally, Deekshith Reddy","first_name":"Deekshith Reddy","last_name":"Devulapally"},{"full_name":"Tröster, Thomas","first_name":"Thomas","last_name":"Tröster"}],"publication_identifier":{"issn":["1662-9752"]},"doi":"10.4028/p-0tiihi","language":[{"iso":"eng"}],"abstract":[{"lang":"eng","text":"Clinched joints with non-rotationally symmetric geometries exhibit orientation-dependent mechanical behavior that is commonly neglected in structural-scale simulations. Reuleaux triangle shaped clinched joints, in particular, show pronounced in-plane anisotropy depending on their orientation. While such effects have been studied at joint and specimen scale, their relevance at the structural level remains largely unexplored. In this work, the influence of joint orientation on the bending response of a joined structure is investigated using numerical simulations. A simplified joint replacement model based on the *CONSTRAINED_SPR2 point-connector formulation in LS-DYNA is employed, with parameters calibrated from previously obtained experimental force displacement data. A hat shaped profile structure subjected to three-point bending is analyzed in a parametric study considering variations in joint orientation, joint spacing, and profile geometry. The results show that joint orientation has little influence during the initial deformation phase but becomes increasingly significant at larger displacements, where joint behavior governs load transfer. Orientation dependent effects are found to influence the global force displacement response and local load redistribution among joints, with magnitudes comparable to those induced by changes in joint spacing and structural geometry. The findings confirm that joint orientation effects remain relevant at the structural level and should be considered in the design of structures assembled using non-rotationally symmetric clinched joints."}],"publication":"Materials Science Forum","type":"conference","department":[{"_id":"149"},{"_id":"321"},{"_id":"9"}],"date_created":"2026-04-22T08:19:27Z","status":"public","user_id":"76837","volume":1185,"page":"161-169","publisher":"Trans Tech Publications, Ltd.","_id":"65483","project":[{"_id":"130","name":"TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten"},{"_id":"140","name":"TRR 285 - Subproject B01"},{"name":"Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"citation":{"ama":"Devulapally DR, Tröster T. A Numerical Study on the Mutual Influence of Joint Orientation and Component Geometry in Non-Rotationally Symmetric Clinched Joints. In: Materials Science Forum. Vol 1185. Trans Tech Publications, Ltd.; 2026:161-169. doi:10.4028/p-0tiihi","bibtex":"@inproceedings{Devulapally_Tröster_2026, title={A Numerical Study on the Mutual Influence of Joint Orientation and Component Geometry in Non-Rotationally Symmetric Clinched Joints}, volume={1185}, DOI={10.4028/p-0tiihi}, booktitle={Materials Science Forum}, publisher={Trans Tech Publications, Ltd.}, author={Devulapally, Deekshith Reddy and Tröster, Thomas}, year={2026}, pages={161–169} }","mla":"Devulapally, Deekshith Reddy, and Thomas Tröster. “A Numerical Study on the Mutual Influence of Joint Orientation and Component Geometry in Non-Rotationally Symmetric Clinched Joints.” Materials Science Forum, vol. 1185, Trans Tech Publications, Ltd., 2026, pp. 161–69, doi:10.4028/p-0tiihi.","chicago":"Devulapally, Deekshith Reddy, and Thomas Tröster. “A Numerical Study on the Mutual Influence of Joint Orientation and Component Geometry in Non-Rotationally Symmetric Clinched Joints.” In Materials Science Forum, 1185:161–69. Trans Tech Publications, Ltd., 2026. https://doi.org/10.4028/p-0tiihi.","short":"D.R. Devulapally, T. Tröster, in: Materials Science Forum, Trans Tech Publications, Ltd., 2026, pp. 161–169.","apa":"Devulapally, D. R., & Tröster, T. (2026). A Numerical Study on the Mutual Influence of Joint Orientation and Component Geometry in Non-Rotationally Symmetric Clinched Joints. Materials Science Forum, 1185, 161–169. https://doi.org/10.4028/p-0tiihi","ieee":"D. R. Devulapally and T. Tröster, “A Numerical Study on the Mutual Influence of Joint Orientation and Component Geometry in Non-Rotationally Symmetric Clinched Joints,” in Materials Science Forum, 2026, vol. 1185, pp. 161–169, doi: 10.4028/p-0tiihi."}},{"type":"book_chapter","department":[{"_id":"458"}],"date_created":"2026-05-12T14:23:18Z","publication":"Transitions to School in the 21st Century. Insights from National and International Research, Policy, and Practice","citation":{"apa":"Büker, P., Herding, J., Henke, V., Seifert, A., & Velten, K. (2026). Critical Review of Research and Policy on Transitions to School from 2000 to 2024 in Germany. In B. Perry & S. Dockett (Eds.), Transitions to School in the 21st Century. Insights from National and International Research, Policy, and Practice (pp. 421–435). Springer Nature.","ieee":"P. Büker, J. Herding, V. Henke, A. Seifert, and K. Velten, “Critical Review of Research and Policy on Transitions to School from 2000 to 2024 in Germany,” in Transitions to School in the 21st Century. Insights from National and International Research, Policy, and Practice, B. Perry and S. Dockett, Eds. Springer Nature, 2026, pp. 421–435.","short":"P. Büker, J. Herding, V. Henke, A. Seifert, K. Velten, in: B. Perry, S. Dockett (Eds.), Transitions to School in the 21st Century. Insights from National and International Research, Policy, and Practice, Springer Nature, 2026, pp. 421–435.","chicago":"Büker, Petra, Jana Herding, Vanessa Henke, Anja Seifert, and Katrin Velten. “Critical Review of Research and Policy on Transitions to School from 2000 to 2024 in Germany.” In Transitions to School in the 21st Century. Insights from National and International Research, Policy, and Practice, edited by Bob Perry and Sue Dockett, 421–35. Springer Nature, 2026.","mla":"Büker, Petra, et al. “Critical Review of Research and Policy on Transitions to School from 2000 to 2024 in Germany.” Transitions to School in the 21st Century. Insights from National and International Research, Policy, and Practice, edited by Bob Perry and Sue Dockett, Springer Nature, 2026, pp. 421–35.","ama":"Büker P, Herding J, Henke V, Seifert A, Velten K. Critical Review of Research and Policy on Transitions to School from 2000 to 2024 in Germany. In: Perry B, Dockett S, eds. Transitions to School in the 21st Century. Insights from National and International Research, Policy, and Practice. Springer Nature; 2026:421-435.","bibtex":"@inbook{Büker_Herding_Henke_Seifert_Velten_2026, title={Critical Review of Research and Policy on Transitions to School from 2000 to 2024 in Germany}, booktitle={Transitions to School in the 21st Century. Insights from National and International Research, Policy, and Practice}, publisher={Springer Nature}, author={Büker, Petra and Herding, Jana and Henke, Vanessa and Seifert, Anja and Velten, Katrin}, editor={Perry, Bob and Dockett, Sue}, year={2026}, pages={421–435} }"},"user_id":"26718","editor":[{"full_name":"Perry, Bob","first_name":"Bob","last_name":"Perry"},{"first_name":"Sue","last_name":"Dockett","full_name":"Dockett, Sue"}],"page":"421-435","language":[{"iso":"eng"}],"_id":"65610","publisher":"Springer Nature","publication_status":"published","date_updated":"2026-05-12T14:23:51Z","title":"Critical Review of Research and Policy on Transitions to School from 2000 to 2024 in Germany","status":"public","year":"2026","author":[{"id":"21978","full_name":"Büker, Petra","first_name":"Petra","last_name":"Büker"},{"last_name":"Herding","first_name":"Jana","full_name":"Herding, Jana"},{"full_name":"Henke, Vanessa","first_name":"Vanessa","last_name":"Henke"},{"first_name":"Anja","last_name":"Seifert","full_name":"Seifert, Anja"},{"full_name":"Velten, Katrin","first_name":"Katrin","last_name":"Velten"}],"publication_identifier":{"eisbn":["978-3-032-10436-6"]}},{"has_accepted_license":"1","status":"public","ddc":["370"],"user_id":"94416","page":"181-205","_id":"65613","publisher":"OAPublishing Collective","quality_controlled":"1","file_date_updated":"2026-05-13T07:22:52Z","citation":{"ama":"Schmidt R, Drath H, Steinhardt I. Stereotype Darstellungen im Bild Reconstructing Differences and Stereotypes in Pictures. MedienPädagogik: Zeitschrift für Theorie und Praxis der Medienbildung. Published online 2026:181-205. doi:10.21240/mpaed/00/2026.05.12.x","bibtex":"@article{Schmidt_Drath_Steinhardt_2026, title={Stereotype Darstellungen im Bild Reconstructing Differences and Stereotypes in Pictures}, DOI={10.21240/mpaed/00/2026.05.12.x}, journal={MedienPädagogik: Zeitschrift für Theorie und Praxis der Medienbildung}, publisher={OAPublishing Collective}, author={Schmidt, Rebecca and Drath, Hannah and Steinhardt, Isabel}, year={2026}, pages={181–205} }","mla":"Schmidt, Rebecca, et al. “Stereotype Darstellungen im Bild Reconstructing Differences and Stereotypes in Pictures.” MedienPädagogik: Zeitschrift für Theorie und Praxis der Medienbildung, OAPublishing Collective, 2026, pp. 181–205, doi:10.21240/mpaed/00/2026.05.12.x.","chicago":"Schmidt, Rebecca, Hannah Drath, and Isabel Steinhardt. “Stereotype Darstellungen im Bild Reconstructing Differences and Stereotypes in Pictures.” MedienPädagogik: Zeitschrift für Theorie und Praxis der Medienbildung, 2026, 181–205. https://doi.org/10.21240/mpaed/00/2026.05.12.x.","short":"R. Schmidt, H. Drath, I. Steinhardt, MedienPädagogik: Zeitschrift für Theorie und Praxis der Medienbildung (2026) 181–205.","apa":"Schmidt, R., Drath, H., & Steinhardt, I. (2026). Stereotype Darstellungen im Bild Reconstructing Differences and Stereotypes in Pictures. MedienPädagogik: Zeitschrift für Theorie und Praxis der Medienbildung, 181–205. https://doi.org/10.21240/mpaed/00/2026.05.12.x","ieee":"R. Schmidt, H. Drath, and I. Steinhardt, “Stereotype Darstellungen im Bild Reconstructing Differences and Stereotypes in Pictures,” MedienPädagogik: Zeitschrift für Theorie und Praxis der Medienbildung, pp. 181–205, 2026, doi: 10.21240/mpaed/00/2026.05.12.x."},"oa":"1","external_id":{"unknown":["https://www.medienpaed.com/article/view/2066/1619"]},"date_updated":"2026-05-13T07:24:31Z","publication_status":"published","title":"Stereotype Darstellungen im Bild Reconstructing Differences and Stereotypes in Pictures","year":"2026","publication_identifier":{"issn":["1424-3636"]},"author":[{"full_name":"Schmidt, Rebecca","orcid":"https://orcid.org/0000-0002-2516-359X","last_name":"Schmidt","first_name":"Rebecca","id":"94416"},{"first_name":"Hannah","last_name":"Drath","full_name":"Drath, Hannah"},{"id":"90339","orcid":"https://orcid.org/0000-0002-2590-6189","last_name":"Steinhardt","first_name":"Isabel","full_name":"Steinhardt, Isabel"}],"doi":"10.21240/mpaed/00/2026.05.12.x","alternative_title":["Analyse von Bildmaterial digital verfügbarer Unterrichtsmaterialien","Analysis of Digital Teaching Materials"],"main_file_link":[{"url":"https://www.medienpaed.com/article/view/2066/1619","open_access":"1"}],"language":[{"iso":"ger"}],"abstract":[{"lang":"eng","text":"Lehrer:innen nutzen und veröffentlichen Unterrichtsmaterial auf verschiedenen Plattformen. Da diese Materialien, anders als Schulbücher, kein Qualitätssicherungsverfahren durchlaufen, wird aktuell die Frage nach der Verantwortung für die Qualitätssicherung dieses Materials diskutiert. Abbildungen von Menschen im Unterrichtsmaterial transportieren soziokulturelle und pädagogische Inhalte, die eine kritische Prüfung erfordern. Dieser Beitrag adressiert die Frage, welche Differenzkonstruktionen und Stereotypisierungen im Bildmaterial von digital verfügbarem Unterrichtsmaterial vorhanden sind. Verwendet wurde ein Materialkorpus drei verschiedener Plattformen mit Unterrichtsmaterialien der Sekundarstufe 1 (5. – 10. Klasse) mit 329 Bildern von Menschen (Zeichnungen und Fotografien). Dieser wurde analysiert in Bezug auf die deskriptive Häufigkeit der Darstellung bestimmter Personengruppen sowie qualitativ und intersektional mit der hermeneutischen Sequenzanalyse. Zentrale Ergebnisse sind, dass vor allem Personen dargestellt werden, die in maximal einer Dimension von der weissen, heterosexuellen, nicht behinderten Norm abweichen. Darstellungen von sichtbaren Behinderungen und People of Color (BIPoC) kommen kaum vor. Diversität wird vereinzelt in Gruppenbildern dargestellt, jedoch nicht in Familienbildern. Othering und negative emotionale Konnotationen sind in den Darstellungen erkennbar, wenn z. B. Schwarzsein als Abweichung von der Norm verstanden wird, Körperproportionen verzerrt oder Sportler:innen als unsicher dargestellt werden. Die Analyse von digital bereitgestelltem Unterrichtsmaterial macht deutlich, dass ähnliche Problematiken zu beobachten sind, wie sie durch die Schulbuchforschung für Schulbücher beschrieben werden."}],"publication":"MedienPädagogik: Zeitschrift für Theorie und Praxis der Medienbildung","type":"journal_article","department":[{"_id":"121"},{"_id":"477"}],"file":[{"relation":"main_file","date_updated":"2026-05-13T07:22:52Z","file_name":"2066_Schmidt+et+al_final.pdf","access_level":"closed","file_size":1205719,"file_id":"65614","content_type":"application/pdf","success":1,"creator":"schmidt6","date_created":"2026-05-13T07:22:52Z"}],"date_created":"2026-05-13T07:20:59Z"},{"abstract":[{"lang":"eng","text":"Self-piercing riveting (SPR) is a well-established joining technique in lightweight construction, as it enables the joining of different materials without requiring pre-drilling. However, the necessary adaptation of the rivet-die combination to the respective material and thickness combinations requires a large number of specific tool sets, which significantly limits the process's flexibility. To overcome these limitations, the versatile self-piercing riveting (V-SPR) was developed, which features enhanced punch actuation in combination with a multi-range-capable rivet . In this context, the concept of a movable die was introduced, which enables an extended process window and adaptable joint formation. Kappe et al. presented initial studies demonstrating the potential of this approach . However, a detailed numerical understanding of the underlying mechanisms remains lacking. This paper presents a numerical analysis of V-SPR with a movable die using a finite element (FE) model. The model includes deformable rivets, sheet metal materials and a kinematically controlled die with adjustable movement. A parameter study was conducted to analyse the influence of die movement on the material flow of the rivet and sheets, as well as joint formation. The simulations were validated using selected experimental data. The goal is to compare the joint geometries achieved with fixed and moving dies and expand the process windows of VSPR. The results demonstrate that the movable-die concept significantly enhances the material flow of both the sheets and the rivet, resulting in a noticeably larger and more reliable interlock than what is achievable with V-SPR using a fixed die. The numerical analyses support the observations reported by Kappe et al. and extend them by providing a quantitative description of how die displacement influences the resulting interlock size. Moreover, the ability to precisely control the die movement makes it possible to join challenging sheet-metal combinations that are difficult to process with conventional setups, particularly in cases involving thicker sheet materials."}],"publication":"Materials Science Forum","department":[{"_id":"43"},{"_id":"157"}],"type":"journal_article","date_created":"2026-05-13T07:33:27Z","intvolume":" 1185","date_updated":"2026-05-13T07:38:46Z","publication_status":"published","author":[{"first_name":"Pia Katharina","last_name":"Kaimann","full_name":"Kaimann, Pia Katharina"},{"full_name":"Bobbert, Mathias","last_name":"Bobbert","first_name":"Mathias"},{"last_name":"Meschut","first_name":"Gerson","full_name":"Meschut, Gerson"}],"publication_identifier":{"issn":["1662-9752"]},"year":"2026","title":"Numerical Analysis of the Influence of a Movable Die on Joint Formation in Versatile Self-Piercing Riveting","doi":"10.4028/p-8jkha8","language":[{"iso":"eng"}],"project":[{"name":"TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten","_id":"130"},{"_id":"133","name":"TRR 285 - Project Area C"},{"_id":"146","name":"TRR 285 - Subproject C02"}],"quality_controlled":"1","citation":{"ieee":"P. K. Kaimann, M. Bobbert, and G. Meschut, “Numerical Analysis of the Influence of a Movable Die on Joint Formation in Versatile Self-Piercing Riveting,” Materials Science Forum, vol. 1185, pp. 149–160, 2026, doi: 10.4028/p-8jkha8.","apa":"Kaimann, P. K., Bobbert, M., & Meschut, G. (2026). Numerical Analysis of the Influence of a Movable Die on Joint Formation in Versatile Self-Piercing Riveting. Materials Science Forum, 1185, 149–160. https://doi.org/10.4028/p-8jkha8","short":"P.K. Kaimann, M. Bobbert, G. Meschut, Materials Science Forum 1185 (2026) 149–160.","chicago":"Kaimann, Pia Katharina, Mathias Bobbert, and Gerson Meschut. “Numerical Analysis of the Influence of a Movable Die on Joint Formation in Versatile Self-Piercing Riveting.” Materials Science Forum 1185 (2026): 149–60. https://doi.org/10.4028/p-8jkha8.","mla":"Kaimann, Pia Katharina, et al. “Numerical Analysis of the Influence of a Movable Die on Joint Formation in Versatile Self-Piercing Riveting.” Materials Science Forum, vol. 1185, Trans Tech Publications, Ltd., 2026, pp. 149–60, doi:10.4028/p-8jkha8.","bibtex":"@article{Kaimann_Bobbert_Meschut_2026, title={Numerical Analysis of the Influence of a Movable Die on Joint Formation in Versatile Self-Piercing Riveting}, volume={1185}, DOI={10.4028/p-8jkha8}, journal={Materials Science Forum}, publisher={Trans Tech Publications, Ltd.}, author={Kaimann, Pia Katharina and Bobbert, Mathias and Meschut, Gerson}, year={2026}, pages={149–160} }","ama":"Kaimann PK, Bobbert M, Meschut G. Numerical Analysis of the Influence of a Movable Die on Joint Formation in Versatile Self-Piercing Riveting. Materials Science Forum. 2026;1185:149-160. doi:10.4028/p-8jkha8"},"status":"public","volume":1185,"user_id":"44935","_id":"65615","publisher":"Trans Tech Publications, Ltd.","page":"149-160"},{"citation":{"ama":"Bürgel C, Siepmann D. La French Pattern Bank : un dictionnaire onomasiologique des valences à l’intention des apprenants avancés du FLE . Actes du Congrès Mondial de Linguistique française 2026 - 10ème Congrès Mondial de Linguistique Française. Published online 2026.","bibtex":"@article{Bürgel_Siepmann_2026, title={La French Pattern Bank : un dictionnaire onomasiologique des valences à l’intention des apprenants avancés du FLE }, journal={Actes du Congrès Mondial de Linguistique française 2026 - 10ème Congrès Mondial de Linguistique Française}, author={Bürgel, Christoph and Siepmann, Dirk}, year={2026} }","mla":"Bürgel, Christoph, and Dirk Siepmann. “La French Pattern Bank : Un Dictionnaire Onomasiologique Des Valences à l’intention Des Apprenants Avancés Du FLE .” Actes Du Congrès Mondial de Linguistique Française 2026 - 10ème Congrès Mondial de Linguistique Française, 2026.","short":"C. Bürgel, D. Siepmann, Actes Du Congrès Mondial de Linguistique Française 2026 - 10ème Congrès Mondial de Linguistique Française (2026).","chicago":"Bürgel, Christoph, and Dirk Siepmann. “La French Pattern Bank : Un Dictionnaire Onomasiologique Des Valences à l’intention Des Apprenants Avancés Du FLE .” Actes Du Congrès Mondial de Linguistique Française 2026 - 10ème Congrès Mondial de Linguistique Française, 2026.","apa":"Bürgel, C., & Siepmann, D. (2026). La French Pattern Bank : un dictionnaire onomasiologique des valences à l’intention des apprenants avancés du FLE . Actes Du Congrès Mondial de Linguistique Française 2026 - 10ème Congrès Mondial de Linguistique Française.","ieee":"C. Bürgel and D. Siepmann, “La French Pattern Bank : un dictionnaire onomasiologique des valences à l’intention des apprenants avancés du FLE ,” Actes du Congrès Mondial de Linguistique française 2026 - 10ème Congrès Mondial de Linguistique Française, 2026."},"publication":"Actes du Congrès Mondial de Linguistique française 2026 - 10ème Congrès Mondial de Linguistique Française","date_created":"2026-01-29T13:26:24Z","type":"journal_article","author":[{"full_name":"Bürgel, Christoph","first_name":"Christoph","last_name":"Bürgel","id":"58448"},{"full_name":"Siepmann, Dirk","first_name":"Dirk","last_name":"Siepmann"}],"status":"public","title":"La French Pattern Bank : un dictionnaire onomasiologique des valences à l’intention des apprenants avancés du FLE ","year":"2026","date_updated":"2026-05-13T08:17:39Z","_id":"63814","language":[{"iso":"eng"}],"user_id":"43976"},{"citation":{"chicago":"Homt, Martina, Bea Bloh, and Janis Wehde. “Perspektiven angehender Lehrkräfte auf Forschendes Lernen – eine qualitative Längsschnittstudie im Referendariat und Berufseinstieg.” Zeitschrift für Bildungsforschung, 2026. https://doi.org/10.1007/s35834-025-00506-4.","short":"M. Homt, B. Bloh, J. Wehde, Zeitschrift für Bildungsforschung (2026).","apa":"Homt, M., Bloh, B., & Wehde, J. (2026). Perspektiven angehender Lehrkräfte auf Forschendes Lernen – eine qualitative Längsschnittstudie im Referendariat und Berufseinstieg. Zeitschrift für Bildungsforschung. https://doi.org/10.1007/s35834-025-00506-4","ieee":"M. Homt, B. Bloh, and J. Wehde, “Perspektiven angehender Lehrkräfte auf Forschendes Lernen – eine qualitative Längsschnittstudie im Referendariat und Berufseinstieg,” Zeitschrift für Bildungsforschung, 2026, doi: 10.1007/s35834-025-00506-4.","ama":"Homt M, Bloh B, Wehde J. Perspektiven angehender Lehrkräfte auf Forschendes Lernen – eine qualitative Längsschnittstudie im Referendariat und Berufseinstieg. Zeitschrift für Bildungsforschung. Published online 2026. doi:10.1007/s35834-025-00506-4","bibtex":"@article{Homt_Bloh_Wehde_2026, title={Perspektiven angehender Lehrkräfte auf Forschendes Lernen – eine qualitative Längsschnittstudie im Referendariat und Berufseinstieg}, DOI={10.1007/s35834-025-00506-4}, journal={Zeitschrift für Bildungsforschung}, publisher={Springer Science and Business Media LLC}, author={Homt, Martina and Bloh, Bea and Wehde, Janis}, year={2026} }","mla":"Homt, Martina, et al. “Perspektiven angehender Lehrkräfte auf Forschendes Lernen – eine qualitative Längsschnittstudie im Referendariat und Berufseinstieg.” Zeitschrift für Bildungsforschung, Springer Science and Business Media LLC, 2026, doi:10.1007/s35834-025-00506-4."},"quality_controlled":"1","oa":"1","status":"public","_id":"61441","publisher":"Springer Science and Business Media LLC","user_id":"11674","publication":"Zeitschrift für Bildungsforschung","abstract":[{"text":"Das hochschuldidaktische Konzept des Forschenden Lernens gilt als zentrales Element der universitären Lehrkräftebildung in Deutschland und ist in fast allen Bundesländern Bestandteil des Praxissemesters. Damit einhergehende Erwartungen im Hinblick auf den Professionalisierungsprozess von Lehrkräften fokussieren insbesondere die Vermittlung einer forschenden Grundhaltung, die auf eine nicht-wissenschaftsferne Berufsausübung abzielt. Wir fassen die forschende Grundhaltung als Professionsüberzeugung, die aus einer kognitiven, affektiven und handlungsbezogenen Komponente besteht und untersuchen die Komponenten im Zusammenspiel sowie im Längsschnitt.\r\n Mittels teilstrukturierter Interviews mit 22 angehenden Lehrkräften im Referendariat und Berufseinstieg, die sich im Praxissemester mit Forschendem Lernen befasst haben, werden das Verständnis (kognitive Komponente) und die Bedeutsamkeit (affektive und handlungsbezogene Komponente) Forschenden Lernens in der jeweiligen Ausbildungs- bzw. Berufsphase erfragt. Die Daten werden inhaltsanalytisch sowie typenbildend ausgewertet, um das Verständnis und die Bedeutsamkeit in der jeweiligen Phase, längsschnittliche Entwicklungen sowie das Verhältnis von Verständnis und Bedeutsamkeit herauszuarbeiten. Die Befunde zeigen, dass die Verständnisse von Forschendem Lernen sowohl im Referendariat als auch im Berufseinstieg variieren. Zudem ist das Konzept – laut Schilderungen der Befragten – durchaus bedeutsam für ihre Lern- und Handlungspraxis, jedoch nicht für alle und in unterschiedlich ausgeprägter Form. Die Typenbildung verdeutlicht, dass die fehlende Bedeutsamkeit Forschenden Lernens mit Fehlkonzepten einhergeht und eine höhere Bedeutsamkeit erkennbar ist, wenn Adaptionsleistungen hinsichtlich des Konzepts vorgenommen werden. Insgesamt ist im Sinne der Auffassung als Professionsüberzeugung die Anbahnung einer forschenden Grundhaltung bei einigen Befragten erkennbar. Implikationen für eine künftige Hochschulbildung ergeben sich u. a. mit Blick auf die Unterstützung von Studierenden bei Adaptionsleistungen für die (jeweilige) Praxis.","lang":"ger"}],"date_created":"2025-09-25T08:41:00Z","department":[{"_id":"456"},{"_id":"43"}],"type":"journal_article","author":[{"first_name":"Martina","last_name":"Homt","full_name":"Homt, Martina","id":"11674"},{"id":"69910","full_name":"Bloh, Bea","first_name":"Bea","last_name":"Bloh"},{"id":"82257","first_name":"Janis","last_name":"Wehde","orcid":"0009-0008-0720-7828","full_name":"Wehde, Janis"}],"publication_identifier":{"issn":["2190-6890","2190-6904"]},"year":"2026","title":"Perspektiven angehender Lehrkräfte auf Forschendes Lernen – eine qualitative Längsschnittstudie im Referendariat und Berufseinstieg","date_updated":"2026-05-13T11:04:50Z","publication_status":"published","language":[{"iso":"ger"}],"main_file_link":[{"open_access":"1","url":"https://doi.org/10.1007/s35834-025-00506-4"}],"alternative_title":["Perspectives of prospective teachers on research-based learning—a qualitative longitudinal study during teacher training and career entry"],"doi":"10.1007/s35834-025-00506-4"},{"language":[{"iso":"eng"}],"article_number":"56","doi":"10.1007/s44245-026-00230-x","author":[{"last_name":"Einwag","first_name":"Jonathan-Markus","full_name":"Einwag, Jonathan-Markus"},{"first_name":"Maximilian","last_name":"Wiemer","full_name":"Wiemer, Maximilian"},{"last_name":"Wartzack","first_name":"Sandro","full_name":"Wartzack, Sandro"},{"first_name":"Stefan","last_name":"Goetz","full_name":"Goetz, Stefan"}],"publication_identifier":{"issn":["2731-6564"]},"year":"2026","title":"A hybrid knowledge based and data based approach for efficient clinch joint design","intvolume":" 5","date_updated":"2026-05-13T11:50:48Z","publication_status":"published","date_created":"2026-05-13T11:46:44Z","type":"journal_article","publication":"Discover Mechanical Engineering","issue":"1","abstract":[{"text":"Abstract\r\n The design of clinch joints is a cost- and time-intensive iterative process due to the complex relationships between tool and process parameters and the resulting joint properties. To address this, this contribution proposes a novel hybrid workflow that combines knowledge- and data-based approaches. Relationships are categorized based on their knowledge quality and the need for a quantitative prediction. Well-established, generalizable relationships are formalized in an ontology as design guidelines (no quantification required) or SWRL rules (quantification required) to model expert knowledge. In contrast, hard-to-formalize or not-fully-understood relationships are treated with regression models for continuous or classification models for binary criteria. These approaches are combined in a generic user interface (GUI), where the ontology can be accessed using predefined SPARQL queries to select and adapt parameters using expert knowledge. These parameters are then used as input for the metamodels. The developed workflow is evaluated on two exemplary joining tasks to illustrate, how designers can retrieve similar prior joints, adapt parameters using the encoded design rules and predict resulting joint properties under varying process conditions. In summary, the combination of ontology and metamodels facilitates the transition of trial and error into an efficient, documentable design process.","lang":"eng"}],"_id":"65620","publisher":"Springer Science and Business Media LLC","volume":5,"user_id":"107109","status":"public","citation":{"apa":"Einwag, J.-M., Wiemer, M., Wartzack, S., & Goetz, S. (2026). A hybrid knowledge based and data based approach for efficient clinch joint design. Discover Mechanical Engineering, 5(1), Article 56. https://doi.org/10.1007/s44245-026-00230-x","ieee":"J.-M. Einwag, M. Wiemer, S. Wartzack, and S. Goetz, “A hybrid knowledge based and data based approach for efficient clinch joint design,” Discover Mechanical Engineering, vol. 5, no. 1, Art. no. 56, 2026, doi: 10.1007/s44245-026-00230-x.","short":"J.-M. Einwag, M. Wiemer, S. Wartzack, S. Goetz, Discover Mechanical Engineering 5 (2026).","chicago":"Einwag, Jonathan-Markus, Maximilian Wiemer, Sandro Wartzack, and Stefan Goetz. “A Hybrid Knowledge Based and Data Based Approach for Efficient Clinch Joint Design.” Discover Mechanical Engineering 5, no. 1 (2026). https://doi.org/10.1007/s44245-026-00230-x.","mla":"Einwag, Jonathan-Markus, et al. “A Hybrid Knowledge Based and Data Based Approach for Efficient Clinch Joint Design.” Discover Mechanical Engineering, vol. 5, no. 1, 56, Springer Science and Business Media LLC, 2026, doi:10.1007/s44245-026-00230-x.","ama":"Einwag J-M, Wiemer M, Wartzack S, Goetz S. A hybrid knowledge based and data based approach for efficient clinch joint design. Discover Mechanical Engineering. 2026;5(1). doi:10.1007/s44245-026-00230-x","bibtex":"@article{Einwag_Wiemer_Wartzack_Goetz_2026, title={A hybrid knowledge based and data based approach for efficient clinch joint design}, volume={5}, DOI={10.1007/s44245-026-00230-x}, number={156}, journal={Discover Mechanical Engineering}, publisher={Springer Science and Business Media LLC}, author={Einwag, Jonathan-Markus and Wiemer, Maximilian and Wartzack, Sandro and Goetz, Stefan}, year={2026} }"},"project":[{"_id":"130","name":"TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten"},{"_id":"132","name":"TRR 285 - Project Area B"},{"name":"TRR 285 - Subproject B05","_id":"144"}]},{"user_id":"43976","language":[{"iso":"eng"}],"_id":"65609","date_updated":"2026-05-13T13:04:42Z","title":"Zur Einführung in den Themenschwerpunkt Lexiko-Grammatik im Fremdsprachenunterricht","year":"2026","status":"public","author":[{"id":"58448","full_name":"Bürgel, Christoph","last_name":"Bürgel","first_name":"Christoph"}],"type":"journal_article","date_created":"2026-05-12T13:37:24Z","publication":"Fremdsprachen Lehren und Lernen (FLuL), 7-14 ","citation":{"ama":"Bürgel C. Zur Einführung in den Themenschwerpunkt Lexiko-Grammatik im Fremdsprachenunterricht. Fremdsprachen Lehren und Lernen (FLuL), 7-14 . Published online 2026.","bibtex":"@article{Bürgel_2026, title={Zur Einführung in den Themenschwerpunkt Lexiko-Grammatik im Fremdsprachenunterricht}, journal={Fremdsprachen Lehren und Lernen (FLuL), 7-14 }, author={Bürgel, Christoph}, year={2026} }","mla":"Bürgel, Christoph. “Zur Einführung in Den Themenschwerpunkt Lexiko-Grammatik Im Fremdsprachenunterricht.” Fremdsprachen Lehren Und Lernen (FLuL), 7-14 , 2026.","short":"C. Bürgel, Fremdsprachen Lehren Und Lernen (FLuL), 7-14 (2026).","chicago":"Bürgel, Christoph. “Zur Einführung in Den Themenschwerpunkt Lexiko-Grammatik Im Fremdsprachenunterricht.” Fremdsprachen Lehren Und Lernen (FLuL), 7-14 , 2026.","apa":"Bürgel, C. (2026). Zur Einführung in den Themenschwerpunkt Lexiko-Grammatik im Fremdsprachenunterricht. Fremdsprachen Lehren Und Lernen (FLuL), 7-14 .","ieee":"C. Bürgel, “Zur Einführung in den Themenschwerpunkt Lexiko-Grammatik im Fremdsprachenunterricht,” Fremdsprachen Lehren und Lernen (FLuL), 7-14 , 2026."}},{"date_created":"2026-05-13T14:05:19Z","department":[{"_id":"150"},{"_id":"624"},{"_id":"9"}],"type":"bachelorsthesis","citation":{"apa":"Peitz, R. (2026). Einfluss von Misch-, Material- und Prozessparametern auf die Koaleszenz flammgeschützter Pulver im Lasersintern.","ieee":"R. Peitz, Einfluss von Misch-, Material- und Prozessparametern auf die Koaleszenz flammgeschützter Pulver im Lasersintern. 2026.","short":"R. Peitz, Einfluss von Misch-, Material- Und Prozessparametern Auf Die Koaleszenz Flammgeschützter Pulver Im Lasersintern, 2026.","chicago":"Peitz, Robin. Einfluss von Misch-, Material- Und Prozessparametern Auf Die Koaleszenz Flammgeschützter Pulver Im Lasersintern, 2026.","mla":"Peitz, Robin. Einfluss von Misch-, Material- Und Prozessparametern Auf Die Koaleszenz Flammgeschützter Pulver Im Lasersintern. 2026.","ama":"Peitz R. Einfluss von Misch-, Material- Und Prozessparametern Auf Die Koaleszenz Flammgeschützter Pulver Im Lasersintern.; 2026.","bibtex":"@book{Peitz_2026, title={Einfluss von Misch-, Material- und Prozessparametern auf die Koaleszenz flammgeschützter Pulver im Lasersintern}, author={Peitz, Robin}, year={2026} }"},"supervisor":[{"id":"464","full_name":"Schmid, Hans-Joachim","last_name":"Schmid","first_name":"Hans-Joachim","orcid":"000-0001-8590-1921"},{"id":"3959","orcid":"https://orcid.org/0000-0003-2611-5298","first_name":"Steffen","last_name":"Jesinghausen","full_name":"Jesinghausen, Steffen"},{"id":"72307","full_name":"Neitzel, Fabian","first_name":"Fabian","orcid":"0009-0004-8412-3645 ","last_name":"Neitzel"}],"_id":"65624","language":[{"iso":"eng"}],"user_id":"72307","author":[{"first_name":"Robin","last_name":"Peitz","full_name":"Peitz, Robin"}],"year":"2026","title":"Einfluss von Misch-, Material- und Prozessparametern auf die Koaleszenz flammgeschützter Pulver im Lasersintern","status":"public","date_updated":"2026-05-13T14:05:22Z"},{"publication":"Information Systems","citation":{"mla":"Skolik, Alexander Marcus, et al. “A Modular Large Language Model Agent Architecture for Adaptive and Autonomous Process-Aware Execution.” Information Systems, 102748, Elsevier BV, 2026, doi:10.1016/j.is.2026.102748.","ama":"Skolik AM, Kaltenpoth SB, Beverungen D, Müller O. A modular large language model agent architecture for adaptive and autonomous process-aware execution. Information Systems. Published online 2026. doi:10.1016/j.is.2026.102748","bibtex":"@article{Skolik_Kaltenpoth_Beverungen_Müller_2026, title={A modular large language model agent architecture for adaptive and autonomous process-aware execution}, DOI={10.1016/j.is.2026.102748}, number={102748}, journal={Information Systems}, publisher={Elsevier BV}, author={Skolik, Alexander Marcus and Kaltenpoth, Sascha Benjamin and Beverungen, Daniel and Müller, Oliver}, year={2026} }","apa":"Skolik, A. M., Kaltenpoth, S. B., Beverungen, D., & Müller, O. (2026). A modular large language model agent architecture for adaptive and autonomous process-aware execution. Information Systems, Article 102748. https://doi.org/10.1016/j.is.2026.102748","ieee":"A. M. Skolik, S. B. Kaltenpoth, D. Beverungen, and O. Müller, “A modular large language model agent architecture for adaptive and autonomous process-aware execution,” Information Systems, Art. no. 102748, 2026, doi: 10.1016/j.is.2026.102748.","chicago":"Skolik, Alexander Marcus, Sascha Benjamin Kaltenpoth, Daniel Beverungen, and Oliver Müller. “A Modular Large Language Model Agent Architecture for Adaptive and Autonomous Process-Aware Execution.” Information Systems, 2026. https://doi.org/10.1016/j.is.2026.102748.","short":"A.M. Skolik, S.B. Kaltenpoth, D. Beverungen, O. Müller, Information Systems (2026)."},"date_created":"2026-05-14T11:19:08Z","type":"journal_article","title":"A modular large language model agent architecture for adaptive and autonomous process-aware execution","year":"2026","status":"public","publication_identifier":{"issn":["0306-4379"]},"author":[{"full_name":"Skolik, Alexander Marcus","orcid":"0009-0006-2519-1765","first_name":"Alexander Marcus","last_name":"Skolik","id":"92908"},{"id":"50640","first_name":"Sascha Benjamin","last_name":"Kaltenpoth","full_name":"Kaltenpoth, Sascha Benjamin"},{"id":"59677","full_name":"Beverungen, Daniel","first_name":"Daniel","last_name":"Beverungen"},{"full_name":"Müller, Oliver","last_name":"Müller","first_name":"Oliver","id":"72849"}],"date_updated":"2026-05-14T11:20:02Z","publication_status":"published","article_number":"102748","_id":"65626","language":[{"iso":"eng"}],"publisher":"Elsevier BV","doi":"10.1016/j.is.2026.102748","user_id":"92908"},{"project":[{"name":"FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken für Leistungsschallanwendungen (NEPTUN)","_id":"245"}],"citation":{"bibtex":"@inproceedings{Friesen_Hölscher_Siegmund_Claes_Henning_2026, place={96th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM)}, title={Experimental and Numerical Investigation of Jump Phenomena in the Frequency Response of Piezoelectric Systems}, author={Friesen, Olga and Hölscher, Jonas and Siegmund, Michael B. K. and Claes, Leander and Henning, Bernd}, year={2026} }","ama":"Friesen O, Hölscher J, Siegmund MBK, Claes L, Henning B. Experimental and Numerical Investigation of Jump Phenomena in the Frequency Response of Piezoelectric Systems. In: ; 2026.","mla":"Friesen, Olga, et al. Experimental and Numerical Investigation of Jump Phenomena in the Frequency Response of Piezoelectric Systems. 2026.","short":"O. Friesen, J. Hölscher, M.B.K. Siegmund, L. Claes, B. Henning, in: 96th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM), 2026.","chicago":"Friesen, Olga, Jonas Hölscher, Michael B. K. Siegmund, Leander Claes, and Bernd Henning. “Experimental and Numerical Investigation of Jump Phenomena in the Frequency Response of Piezoelectric Systems.” 96th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM), 2026.","ieee":"O. Friesen, J. Hölscher, M. B. K. Siegmund, L. Claes, and B. Henning, “Experimental and Numerical Investigation of Jump Phenomena in the Frequency Response of Piezoelectric Systems,” 2026.","apa":"Friesen, O., Hölscher, J., Siegmund, M. B. K., Claes, L., & Henning, B. (2026). Experimental and Numerical Investigation of Jump Phenomena in the Frequency Response of Piezoelectric Systems."},"type":"conference_abstract","department":[{"_id":"49"}],"place":"96th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM)","date_created":"2026-05-13T14:24:34Z","date_updated":"2026-05-13T14:25:54Z","title":"Experimental and Numerical Investigation of Jump Phenomena in the Frequency Response of Piezoelectric Systems","status":"public","year":"2026","author":[{"id":"44026","full_name":"Friesen, Olga","first_name":"Olga","last_name":"Friesen"},{"id":"73952","first_name":"Jonas","last_name":"Hölscher","full_name":"Hölscher, Jonas"},{"full_name":"Siegmund, Michael B. K.","last_name":"Siegmund","first_name":"Michael B. K."},{"id":"11829","full_name":"Claes, Leander","first_name":"Leander","last_name":"Claes","orcid":"0000-0002-4393-268X"},{"id":"213","last_name":"Henning","first_name":"Bernd","full_name":"Henning, Bernd"}],"user_id":"44026","_id":"65625","language":[{"iso":"eng"}]},{"citation":{"apa":"Meise, A. T., Cord-Landwehr, T., Boeddeker, C., Delcroix, M., Nakatani, T., & Haeb-Umbach, R. (2026). Loose Coupling of Spectral and Spatial Models for Multi-Channel Diarization and Enhancement of Meetings in Dynamic Environments. ICASSP 2026 - 2026 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP). 2026 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) , Barcelona. https://doi.org/10.1109/icassp55912.2026.11463540","ieee":"A. T. Meise, T. Cord-Landwehr, C. Boeddeker, M. Delcroix, T. Nakatani, and R. Haeb-Umbach, “Loose Coupling of Spectral and Spatial Models for Multi-Channel Diarization and Enhancement of Meetings in Dynamic Environments,” presented at the 2026 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) , Barcelona, 2026, doi: 10.1109/icassp55912.2026.11463540.","chicago":"Meise, Adrian Tobias, Tobias Cord-Landwehr, Christoph Boeddeker, Marc Delcroix, Tomohiro Nakatani, and Reinhold Haeb-Umbach. “Loose Coupling of Spectral and Spatial Models for Multi-Channel Diarization and Enhancement of Meetings in Dynamic Environments.” In ICASSP 2026 - 2026 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP). IEEE, 2026. https://doi.org/10.1109/icassp55912.2026.11463540.","short":"A.T. Meise, T. Cord-Landwehr, C. Boeddeker, M. Delcroix, T. Nakatani, R. Haeb-Umbach, in: ICASSP 2026 - 2026 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), IEEE, 2026.","mla":"Meise, Adrian Tobias, et al. “Loose Coupling of Spectral and Spatial Models for Multi-Channel Diarization and Enhancement of Meetings in Dynamic Environments.” ICASSP 2026 - 2026 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), IEEE, 2026, doi:10.1109/icassp55912.2026.11463540.","ama":"Meise AT, Cord-Landwehr T, Boeddeker C, Delcroix M, Nakatani T, Haeb-Umbach R. Loose Coupling of Spectral and Spatial Models for Multi-Channel Diarization and Enhancement of Meetings in Dynamic Environments. In: ICASSP 2026 - 2026 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP). IEEE; 2026. doi:10.1109/icassp55912.2026.11463540","bibtex":"@inproceedings{Meise_Cord-Landwehr_Boeddeker_Delcroix_Nakatani_Haeb-Umbach_2026, title={Loose Coupling of Spectral and Spatial Models for Multi-Channel Diarization and Enhancement of Meetings in Dynamic Environments}, DOI={10.1109/icassp55912.2026.11463540}, booktitle={ICASSP 2026 - 2026 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)}, publisher={IEEE}, author={Meise, Adrian Tobias and Cord-Landwehr, Tobias and Boeddeker, Christoph and Delcroix, Marc and Nakatani, Tomohiro and Haeb-Umbach, Reinhold}, year={2026} }"},"project":[{"name":"Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"external_id":{"arxiv":["https://arxiv.org/abs/2601.16077"]},"oa":"1","conference":{"location":"Barcelona","name":" 2026 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) "},"status":"public","publisher":"IEEE","_id":"65606","user_id":"79268","publication":"ICASSP 2026 - 2026 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)","abstract":[{"text":"Sound capture by microphone arrays opens the possibility to exploit spatial, in addition to spectral, information for diarization and signal enhancement, two important tasks in meeting transcription. However, there is no one-to-one mapping of positions in space to speakers if speakers move. Here, we address this by proposing a novel joint spatial and spectral mixture model, whose two submodels are loosely coupled by modeling the relationship between speaker and position index probabilistically. Thus, spatial and spectral information can be jointly exploited, while at the same time allowing for speakers speaking from different positions. Experiments on the LibriCSS data set with simulated speaker position changes show great improvements over tightly coupled subsystems.","lang":"eng"}],"date_created":"2026-05-11T14:20:48Z","department":[{"_id":"54"},{"_id":"1063"}],"type":"conference","keyword":["mixture models","meeting processing","diarization","source separation"],"author":[{"id":"79268","full_name":"Meise, Adrian Tobias","first_name":"Adrian Tobias","last_name":"Meise"},{"first_name":"Tobias","last_name":"Cord-Landwehr","full_name":"Cord-Landwehr, Tobias","id":"44393"},{"id":"40767","last_name":"Boeddeker","first_name":"Christoph","full_name":"Boeddeker, Christoph"},{"last_name":"Delcroix","first_name":"Marc","full_name":"Delcroix, Marc"},{"last_name":"Nakatani","first_name":"Tomohiro","full_name":"Nakatani, Tomohiro"},{"first_name":"Reinhold","last_name":"Haeb-Umbach","full_name":"Haeb-Umbach, Reinhold","id":"242"}],"title":"Loose Coupling of Spectral and Spatial Models for Multi-Channel Diarization and Enhancement of Meetings in Dynamic Environments","year":"2026","date_updated":"2026-05-15T08:17:25Z","language":[{"iso":"eng"}],"main_file_link":[{"open_access":"1","url":"https://arxiv.org/pdf/2601.16077"}],"doi":"10.1109/icassp55912.2026.11463540"},{"date_created":"2026-05-15T06:14:51Z","department":[{"_id":"477"}],"type":"journal_article","citation":{"ama":"Bilecen B, Diekmann I, Faist T. What’s Next? Micro‐ and Meso‐Level Predictors of Mobility Intentions Among International Chinese Students in Germany. Global Networks. 2026;26(3). doi:10.1111/glob.70059","bibtex":"@article{Bilecen_Diekmann_Faist_2026, title={What’s Next? Micro‐ and Meso‐Level Predictors of Mobility Intentions Among International Chinese Students in Germany}, volume={26}, DOI={10.1111/glob.70059}, number={3}, journal={Global Networks}, publisher={Wiley}, author={Bilecen, Başak and Diekmann, Isabell and Faist, Thomas}, year={2026} }","mla":"Bilecen, Başak, et al. “What’s Next? Micro‐ and Meso‐Level Predictors of Mobility Intentions Among International Chinese Students in Germany.” Global Networks, vol. 26, no. 3, Wiley, 2026, doi:10.1111/glob.70059.","short":"B. Bilecen, I. Diekmann, T. Faist, Global Networks 26 (2026).","chicago":"Bilecen, Başak, Isabell Diekmann, and Thomas Faist. “What’s Next? Micro‐ and Meso‐Level Predictors of Mobility Intentions Among International Chinese Students in Germany.” Global Networks 26, no. 3 (2026). https://doi.org/10.1111/glob.70059.","apa":"Bilecen, B., Diekmann, I., & Faist, T. (2026). What’s Next? Micro‐ and Meso‐Level Predictors of Mobility Intentions Among International Chinese Students in Germany. Global Networks, 26(3). https://doi.org/10.1111/glob.70059","ieee":"B. Bilecen, I. Diekmann, and T. Faist, “What’s Next? Micro‐ and Meso‐Level Predictors of Mobility Intentions Among International Chinese Students in Germany,” Global Networks, vol. 26, no. 3, 2026, doi: 10.1111/glob.70059."},"issue":"3","publication":"Global Networks","abstract":[{"text":"**ABSTRACT**

While studying abroad, international students not only pursue academic qualifications but also begin to imagine and plan their future mobility trajectories. One central decision concern is whether to remain in the host country after graduation or return to the country of origin or move to another country. This article investigates the individual and social factors that shape post‐graduation work intentions among international Chinese students in Germany, the second‐largest international student group in the country. Drawing on original survey data from the Bright Futures project (2018), we analyse how life satisfaction, romantic partnerships, career aspirations and social networks influence students’ likelihood of planning to work in Germany after graduation. Using binary logistic regression models, we find that higher life satisfaction, valuing meaningful employment and having a partner in Germany are all significantly associated with intentions to stay. In contrast, the geographical location of broader personal networks shows no significant effect. These findings contribute to migration and higher education research by foregrounding the role of subjective well‐being and certain forms of relational embeddedness in shaping students’ imagined futures. Rather than treating international students as passive participants in education‐driven mobility, we highlight how personal and emotional factors influence their transition into potential long‐term migrants.

","lang":"eng"}],"_id":"65628","publisher":"Wiley","volume":26,"doi":"10.1111/glob.70059","user_id":"119325","publication_identifier":{"issn":["1471-0374"]},"author":[{"first_name":"Başak","last_name":"Bilecen","full_name":"Bilecen, Başak"},{"first_name":"Isabell","last_name":"Diekmann","full_name":"Diekmann, Isabell"},{"first_name":"Thomas","last_name":"Faist","full_name":"Faist, Thomas"}],"year":"2026","status":"public","title":"What’s Next? Micro‐ and Meso‐Level Predictors of Mobility Intentions Among International Chinese Students in Germany","intvolume":" 26","date_updated":"2026-05-15T06:15:09Z"},{"year":"2026","title":"An unholy trinity: TFNP, polynomial systems, and the quantum satisfiability problem","status":"public","author":[{"first_name":"Marco","last_name":"Aldi","full_name":"Aldi, Marco"},{"last_name":"Gharibian","orcid":"0000-0002-9992-3379","first_name":"Sevag","full_name":"Gharibian, Sevag","id":"71541"},{"first_name":"Dorian","last_name":"Rudolph","full_name":"Rudolph, Dorian","id":"57863"}],"date_updated":"2026-05-15T08:40:28Z","publication_status":"published","intvolume":" 362","page":"7:1-7:24","language":[{"iso":"eng"}],"_id":"57866","user_id":"71541","volume":362,"publication":"17th Innovations in Theoretical Computer Science Conference (ITCS 2026)","citation":{"mla":"Aldi, Marco, et al. “An Unholy Trinity: TFNP, Polynomial Systems, and the Quantum  Satisfiability Problem.” 17th Innovations in Theoretical Computer Science Conference (ITCS 2026), vol. 362, 2026, p. 7:1-7:24.","ama":"Aldi M, Gharibian S, Rudolph D. An unholy trinity: TFNP, polynomial systems, and the quantum  satisfiability problem. In: 17th Innovations in Theoretical Computer Science Conference (ITCS 2026). Vol 362. ; 2026:7:1-7:24.","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., & Rudolph, D. (2026). An unholy trinity: TFNP, polynomial systems, and the quantum  satisfiability problem. 17th Innovations in Theoretical Computer Science Conference (ITCS 2026), 362, 7:1-7:24.","ieee":"M. Aldi, S. Gharibian, and D. Rudolph, “An unholy trinity: TFNP, polynomial systems, and the quantum  satisfiability problem,” in 17th Innovations in Theoretical Computer Science Conference (ITCS 2026), 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.","chicago":"Aldi, Marco, Sevag Gharibian, and Dorian Rudolph. “An Unholy Trinity: TFNP, Polynomial Systems, and the Quantum  Satisfiability Problem.” In 17th Innovations in Theoretical Computer Science Conference (ITCS 2026), 362:7:1-7:24, 2026."},"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."}],"external_id":{"arxiv":["2412.19623"]},"date_created":"2024-12-30T13:55:27Z","type":"conference","department":[{"_id":"7"},{"_id":"623"}]},{"user_id":"71541","language":[{"iso":"eng"}],"_id":"61777","date_updated":"2026-05-15T08:40:07Z","status":"public","year":"2026","title":"How hard is it to verify a classical shadow?","author":[{"first_name":"Georgios","last_name":"Karaiskos","full_name":"Karaiskos, Georgios"},{"full_name":"Rudolph, Dorian","first_name":"Dorian","last_name":"Rudolph","id":"57863"},{"full_name":"Meyer, Johannes Jakob","last_name":"Meyer","first_name":"Johannes Jakob"},{"last_name":"Eisert","first_name":"Jens","full_name":"Eisert, Jens"},{"orcid":"0000-0002-9992-3379","last_name":"Gharibian","first_name":"Sevag","full_name":"Gharibian, Sevag","id":"71541"}],"type":"conference","department":[{"_id":"7"},{"_id":"623"}],"external_id":{"arxiv":["2510.08515"]},"date_created":"2025-10-10T13:45:07Z","abstract":[{"lang":"eng","text":"Classical shadows are succinct classical representations of quantum states\r\nwhich allow one to encode a set of properties P of a quantum state rho, while\r\nonly requiring measurements on logarithmically many copies of rho in the size\r\nof P. In this work, we initiate the study of verification of classical shadows,\r\ndenoted classical shadow validity (CSV), from the perspective of computational\r\ncomplexity, which asks: Given a classical shadow S, how hard is it to verify\r\nthat S predicts the measurement statistics of a quantum state? We show that\r\neven for the elegantly simple classical shadow protocol of [Huang, Kueng,\r\nPreskill, Nature Physics 2020] utilizing local Clifford measurements, CSV is\r\nQMA-complete. This hardness continues to hold for the high-dimensional\r\nextension of said protocol due to [Mao, Yi, and Zhu, PRL 2025]. Among other\r\nresults, we also show that CSV for exponentially many observables is complete\r\nfor a quantum generalization of the second level of the polynomial hierarchy,\r\nyielding the first natural complete problem for such a class."}],"publication":"International Colloquium on Automata, Languages, and Programming (ICALP)","citation":{"ieee":"G. Karaiskos, D. Rudolph, J. J. Meyer, J. Eisert, and S. Gharibian, “How hard is it to verify a classical shadow?,” 2026.","apa":"Karaiskos, G., Rudolph, D., Meyer, J. J., Eisert, J., & Gharibian, S. (2026). How hard is it to verify a classical shadow? International Colloquium on Automata, Languages, and Programming (ICALP).","short":"G. Karaiskos, D. Rudolph, J.J. Meyer, J. Eisert, S. Gharibian, in: International Colloquium on Automata, Languages, and Programming (ICALP), 2026.","chicago":"Karaiskos, Georgios, Dorian Rudolph, Johannes Jakob Meyer, Jens Eisert, and Sevag Gharibian. “How Hard Is It to Verify a Classical Shadow?” In International Colloquium on Automata, Languages, and Programming (ICALP), 2026.","mla":"Karaiskos, Georgios, et al. “How Hard Is It to Verify a Classical Shadow?” International Colloquium on Automata, Languages, and Programming (ICALP), 2026.","bibtex":"@inproceedings{Karaiskos_Rudolph_Meyer_Eisert_Gharibian_2026, title={How hard is it to verify a classical shadow?}, booktitle={International Colloquium on Automata, Languages, and Programming (ICALP)}, author={Karaiskos, Georgios and Rudolph, Dorian and Meyer, Johannes Jakob and Eisert, Jens and Gharibian, Sevag}, year={2026} }","ama":"Karaiskos G, Rudolph D, Meyer JJ, Eisert J, Gharibian S. How hard is it to verify a classical shadow? In: International Colloquium on Automata, Languages, and Programming (ICALP). ; 2026."}}]