[{"author":[{"full_name":"Mombeck, Mona Maria","id":"29268","last_name":"Mombeck","first_name":"Mona Maria"}],"date_created":"2024-05-28T08:44:59Z","date_updated":"2026-01-15T10:33:45Z","title":"Pfotenglück - Hunde in der Pädagogik. Vortrag im Rahmen \"50 Jahre UPB\"","citation":{"short":"M.M. Mombeck, in: 2022.","bibtex":"@inproceedings{Mombeck_2022, title={Pfotenglück - Hunde in der Pädagogik. Vortrag im Rahmen “50 Jahre UPB”}, author={Mombeck, Mona Maria}, year={2022} }","mla":"Mombeck, Mona Maria. Pfotenglück - Hunde in der Pädagogik. Vortrag im Rahmen “50 Jahre UPB.” 2022.","apa":"Mombeck, M. M. (2022). Pfotenglück - Hunde in der Pädagogik. Vortrag im Rahmen “50 Jahre UPB.”","ama":"Mombeck MM. Pfotenglück - Hunde in der Pädagogik. Vortrag im Rahmen “50 Jahre UPB.” In: ; 2022.","ieee":"M. M. Mombeck, “Pfotenglück - Hunde in der Pädagogik. Vortrag im Rahmen ‘50 Jahre UPB,’” 2022.","chicago":"Mombeck, Mona Maria. “Pfotenglück - Hunde in der Pädagogik. Vortrag im Rahmen ‘50 Jahre UPB,’” 2022."},"year":"2022","user_id":"29268","_id":"54488","language":[{"iso":"ger"}],"type":"conference","status":"public","abstract":[{"text":"Vortrag 50 Jahre UPB","lang":"ger"}]},{"status":"public","editor":[{"first_name":"Fumio","last_name":"Hiroshima","full_name":"Hiroshima, Fumio"}],"type":"conference","extern":"1","series_title":"RIMS Kôkyûroku","user_id":"99427","_id":"43496","page":"60-73","intvolume":" 2235","citation":{"apa":"Hinrichs, B. (2022). Existence of Ground States in the Infrared-Critial Spin Boson Model. In F. Hiroshima (Ed.), Mathematical aspects of quantum fields and related topics (Vol. 2235, pp. 60–73).","bibtex":"@inproceedings{Hinrichs_2022, series={RIMS Kôkyûroku}, title={Existence of Ground States in the Infrared-Critial Spin Boson Model}, volume={2235}, booktitle={Mathematical aspects of quantum fields and related topics}, author={Hinrichs, Benjamin}, editor={Hiroshima, Fumio}, year={2022}, pages={60–73}, collection={RIMS Kôkyûroku} }","short":"B. Hinrichs, in: F. Hiroshima (Ed.), Mathematical Aspects of Quantum Fields and Related Topics, 2022, pp. 60–73.","mla":"Hinrichs, Benjamin. “Existence of Ground States in the Infrared-Critial Spin Boson Model.” Mathematical Aspects of Quantum Fields and Related Topics, edited by Fumio Hiroshima, vol. 2235, 2022, pp. 60–73.","ama":"Hinrichs B. Existence of Ground States in the Infrared-Critial Spin Boson Model. In: Hiroshima F, ed. Mathematical Aspects of Quantum Fields and Related Topics. Vol 2235. RIMS Kôkyûroku. ; 2022:60-73.","chicago":"Hinrichs, Benjamin. “Existence of Ground States in the Infrared-Critial Spin Boson Model.” In Mathematical Aspects of Quantum Fields and Related Topics, edited by Fumio Hiroshima, 2235:60–73. RIMS Kôkyûroku, 2022.","ieee":"B. Hinrichs, “Existence of Ground States in the Infrared-Critial Spin Boson Model,” in Mathematical aspects of quantum fields and related topics, RIMS, Kyoto, 2022, vol. 2235, pp. 60–73."},"publication_status":"published","conference":{"name":"Mathematical aspects of quantum fields and related topics","start_date":"2021-12-06","end_date":"2021-12-08","location":"RIMS, Kyoto"},"main_file_link":[{"open_access":"1","url":"http://hdl.handle.net/2433/282934"}],"volume":2235,"author":[{"first_name":"Benjamin","orcid":"0000-0001-9074-1205","last_name":"Hinrichs","id":"99427","full_name":"Hinrichs, Benjamin"}],"oa":"1","date_updated":"2026-01-16T09:03:41Z","abstract":[{"lang":"eng","text":"We review recent results on the existence of ground states for the\r\ninfrared-critical spin boson model, which describes the interaction of a\r\nmassless bosonic field with a two-state quantum system. Explicitly, we derive a\r\ncritical coupling $\\lambda_{\\mathsf c}>0$ such that the spin boson model\r\nexhibits a ground state for coupling constants $\\lambda$ with\r\n$|\\lambda|<\\lambda_{\\mathsf c}$. The proof combines a Feynman-Kac-Nelson\r\nformula for the spin boson model with external magnetic field, a 1D-Ising model\r\ncorrelation bound and a compactness argument in Fock space. Elaborating on the\r\nconnection to a long-range 1D-Ising model, we briefly discuss the conjecture\r\nthat the spin boson model does not have a ground state at large coupling. This\r\nnote is based on joint work with David Hasler and Oliver Siebert."}],"publication":"Mathematical aspects of quantum fields and related topics","language":[{"iso":"eng"}],"external_id":{"arxiv":["2204.00287"]},"year":"2022","title":"Existence of Ground States in the Infrared-Critial Spin Boson Model","date_created":"2023-04-14T04:56:51Z"},{"oa":"1","date_updated":"2026-01-16T09:02:30Z","volume":23,"author":[{"full_name":"Hasler, David","last_name":"Hasler","first_name":"David"},{"orcid":"0000-0001-9074-1205","last_name":"Hinrichs","full_name":"Hinrichs, Benjamin","id":"99427","first_name":"Benjamin"},{"first_name":"Oliver","last_name":"Siebert","full_name":"Siebert, Oliver"}],"doi":"10.1007/s00023-022-01160-6","main_file_link":[{"open_access":"1"}],"publication_identifier":{"issn":["1424-0637","1424-0661"]},"publication_status":"published","intvolume":" 23","page":"2819-2853","citation":{"apa":"Hasler, D., Hinrichs, B., & Siebert, O. (2022). FKN Formula and Ground State Energy for the Spin Boson Model with External Magnetic Field. Annales Henri Poincaré, 23(8), 2819–2853. https://doi.org/10.1007/s00023-022-01160-6","bibtex":"@article{Hasler_Hinrichs_Siebert_2022, title={FKN Formula and Ground State Energy for the Spin Boson Model with External Magnetic Field}, volume={23}, DOI={10.1007/s00023-022-01160-6}, number={8}, journal={Annales Henri Poincaré}, publisher={Springer Science and Business Media LLC}, author={Hasler, David and Hinrichs, Benjamin and Siebert, Oliver}, year={2022}, pages={2819–2853} }","short":"D. Hasler, B. Hinrichs, O. Siebert, Annales Henri Poincaré 23 (2022) 2819–2853.","mla":"Hasler, David, et al. “FKN Formula and Ground State Energy for the Spin Boson Model with External Magnetic Field.” Annales Henri Poincaré, vol. 23, no. 8, Springer Science and Business Media LLC, 2022, pp. 2819–53, doi:10.1007/s00023-022-01160-6.","chicago":"Hasler, David, Benjamin Hinrichs, and Oliver Siebert. “FKN Formula and Ground State Energy for the Spin Boson Model with External Magnetic Field.” Annales Henri Poincaré 23, no. 8 (2022): 2819–53. https://doi.org/10.1007/s00023-022-01160-6.","ieee":"D. Hasler, B. Hinrichs, and O. Siebert, “FKN Formula and Ground State Energy for the Spin Boson Model with External Magnetic Field,” Annales Henri Poincaré, vol. 23, no. 8, pp. 2819–2853, 2022, doi: 10.1007/s00023-022-01160-6.","ama":"Hasler D, Hinrichs B, Siebert O. FKN Formula and Ground State Energy for the Spin Boson Model with External Magnetic Field. Annales Henri Poincaré. 2022;23(8):2819-2853. doi:10.1007/s00023-022-01160-6"},"_id":"43492","user_id":"99427","article_type":"original","extern":"1","type":"journal_article","status":"public","publisher":"Springer Science and Business Media LLC","date_created":"2023-04-14T04:49:36Z","title":"FKN Formula and Ground State Energy for the Spin Boson Model with External Magnetic Field","issue":"8","year":"2022","external_id":{"arxiv":["2106.08659 "]},"language":[{"iso":"eng"}],"publication":"Annales Henri Poincaré","abstract":[{"lang":"eng","text":"We consider the spin boson model with external magnetic field. We prove a path integral formula for the heat kernel, known as Feynman–Kac–Nelson (FKN) formula. We use this path integral representation to express the ground state energy as a stochastic integral. Based on this connection, we determine the expansion coefficients of the ground state energy with respect to the magnetic field strength and express them in terms of correlation functions of a continuous Ising model. From a recently proven correlation inequality, we can then deduce that the second order derivative is finite. As an application, we show existence of ground states in infrared-singular situations."}]},{"user_id":"99427","_id":"43501","language":[{"iso":"eng"}],"extern":"1","type":"dissertation","status":"public","date_created":"2023-04-14T05:09:10Z","author":[{"last_name":"Hinrichs","orcid":"0000-0001-9074-1205","id":"99427","full_name":"Hinrichs, Benjamin","first_name":"Benjamin"}],"supervisor":[{"first_name":"David","last_name":"Hasler","full_name":"Hasler, David"}],"oa":"1","date_updated":"2026-01-16T09:03:08Z","main_file_link":[{"open_access":"1"}],"doi":"10.22032/dbt.51516","title":"Existence of Ground States for Infrared-Critical Models of Quantum Field Theory","citation":{"apa":"Hinrichs, B. (2022). Existence of Ground States for Infrared-Critical Models of Quantum Field Theory. https://doi.org/10.22032/dbt.51516","short":"B. Hinrichs, Existence of Ground States for Infrared-Critical Models of Quantum Field Theory, Jena, 2022.","mla":"Hinrichs, Benjamin. Existence of Ground States for Infrared-Critical Models of Quantum Field Theory. 2022, doi:10.22032/dbt.51516.","bibtex":"@book{Hinrichs_2022, place={Jena}, title={Existence of Ground States for Infrared-Critical Models of Quantum Field Theory}, DOI={10.22032/dbt.51516}, author={Hinrichs, Benjamin}, year={2022} }","chicago":"Hinrichs, Benjamin. Existence of Ground States for Infrared-Critical Models of Quantum Field Theory. Jena, 2022. https://doi.org/10.22032/dbt.51516.","ieee":"B. Hinrichs, Existence of Ground States for Infrared-Critical Models of Quantum Field Theory. Jena, 2022.","ama":"Hinrichs B. Existence of Ground States for Infrared-Critical Models of Quantum Field Theory.; 2022. doi:10.22032/dbt.51516"},"year":"2022","place":"Jena"},{"year":"2022","title":"Light backscattering from numerical analog of planetary regoliths","publisher":"Copernicus GmbH","date_created":"2022-11-23T12:03:29Z","file":[{"content_type":"application/pdf","relation":"main_file","date_updated":"2022-11-23T12:07:10Z","date_created":"2022-11-23T12:07:10Z","creator":"fossie","file_size":645190,"access_level":"open_access","file_id":"34137","file_name":"2022-09 Grynko - EPSC2022 conference -151-print.pdf"}],"ddc":["530"],"keyword":["tet_topic_scattering"],"language":[{"iso":"eng"}],"citation":{"bibtex":"@inproceedings{Grynko_Shkuratov_Alhaddad_Förstner_2022, title={Light backscattering from numerical analog of planetary regoliths}, DOI={10.5194/epsc2022-151}, publisher={Copernicus GmbH}, author={Grynko, Yevgen and Shkuratov, Yuriy and Alhaddad, Samer and Förstner, Jens}, year={2022} }","short":"Y. Grynko, Y. Shkuratov, S. Alhaddad, J. Förstner, in: Copernicus GmbH, 2022.","mla":"Grynko, Yevgen, et al. Light Backscattering from Numerical Analog of Planetary Regoliths. Copernicus GmbH, 2022, doi:10.5194/epsc2022-151.","apa":"Grynko, Y., Shkuratov, Y., Alhaddad, S., & Förstner, J. (2022). Light backscattering from numerical analog of planetary regoliths. 16th Europlanet Science Congress 2022, Granada, Spain. https://doi.org/10.5194/epsc2022-151","chicago":"Grynko, Yevgen, Yuriy Shkuratov, Samer Alhaddad, and Jens Förstner. “Light Backscattering from Numerical Analog of Planetary Regoliths.” Copernicus GmbH, 2022. https://doi.org/10.5194/epsc2022-151.","ieee":"Y. Grynko, Y. Shkuratov, S. Alhaddad, and J. Förstner, “Light backscattering from numerical analog of planetary regoliths,” presented at the 16th Europlanet Science Congress 2022, Granada, Spain, 2022, doi: 10.5194/epsc2022-151.","ama":"Grynko Y, Shkuratov Y, Alhaddad S, Förstner J. Light backscattering from numerical analog of planetary regoliths. In: Copernicus GmbH; 2022. doi:10.5194/epsc2022-151"},"publication_status":"published","has_accepted_license":"1","doi":"10.5194/epsc2022-151","conference":{"name":"16th Europlanet Science Congress 2022","start_date":"2022-09-18","end_date":"2022-09-23","location":"Granada, Spain"},"oa":"1","date_updated":"2026-01-17T16:42:35Z","author":[{"first_name":"Yevgen","last_name":"Grynko","full_name":"Grynko, Yevgen","id":"26059"},{"first_name":"Yuriy","full_name":"Shkuratov, Yuriy","last_name":"Shkuratov"},{"full_name":"Alhaddad, Samer","id":"42456","last_name":"Alhaddad","first_name":"Samer"},{"first_name":"Jens","orcid":"0000-0001-7059-9862","last_name":"Förstner","full_name":"Förstner, Jens","id":"158"}],"status":"public","type":"conference_abstract","file_date_updated":"2022-11-23T12:07:10Z","project":[{"name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"_id":"34136","user_id":"158","department":[{"_id":"61"},{"_id":"230"}]},{"citation":{"ama":"Kullmer G, Weiss D, Krome S, A. Richard H. Entwicklung Einer Einspannvorrichtung Für Axialrissproben Zur Ermittlung von Bruchmechanischen Kennwerten Für Rohre. LibreCat University; 2022. doi:10.48447/BR-2022-011","ieee":"G. Kullmer, D. Weiss, S. Krome, and H. A. Richard, Entwicklung einer Einspannvorrichtung für Axialrissproben zur Ermittlung von bruchmechanischen Kennwerten für Rohre. LibreCat University, 2022.","chicago":"Kullmer, G., D. Weiss, S. Krome, and H. A. Richard. Entwicklung Einer Einspannvorrichtung Für Axialrissproben Zur Ermittlung von Bruchmechanischen Kennwerten Für Rohre. LibreCat University, 2022. https://doi.org/10.48447/BR-2022-011.","short":"G. Kullmer, D. Weiss, S. Krome, H. A. Richard, Entwicklung Einer Einspannvorrichtung Für Axialrissproben Zur Ermittlung von Bruchmechanischen Kennwerten Für Rohre, LibreCat University, 2022.","bibtex":"@book{Kullmer_Weiss_Krome_A. Richard_2022, title={Entwicklung einer Einspannvorrichtung für Axialrissproben zur Ermittlung von bruchmechanischen Kennwerten für Rohre}, DOI={10.48447/BR-2022-011}, publisher={LibreCat University}, author={Kullmer, G. and Weiss, D. and Krome, S. and A. Richard, H.}, year={2022} }","mla":"Kullmer, G., et al. Entwicklung Einer Einspannvorrichtung Für Axialrissproben Zur Ermittlung von Bruchmechanischen Kennwerten Für Rohre. LibreCat University, 2022, doi:10.48447/BR-2022-011.","apa":"Kullmer, G., Weiss, D., Krome, S., & A. Richard, H. (2022). Entwicklung einer Einspannvorrichtung für Axialrissproben zur Ermittlung von bruchmechanischen Kennwerten für Rohre. LibreCat University. https://doi.org/10.48447/BR-2022-011"},"status":"public","year":"2022","type":"research_data","doi":"10.48447/BR-2022-011","title":"Entwicklung einer Einspannvorrichtung für Axialrissproben zur Ermittlung von bruchmechanischen Kennwerten für Rohre","user_id":"57245","author":[{"last_name":"Kullmer","full_name":"Kullmer, G.","first_name":"G."},{"last_name":"Weiss","full_name":"Weiss, D.","first_name":"D."},{"first_name":"S.","full_name":"Krome, S.","last_name":"Krome"},{"first_name":"H.","full_name":"A. Richard, H.","last_name":"A. Richard"}],"date_created":"2026-01-20T13:23:23Z","date_updated":"2026-01-20T13:24:40Z","publisher":"LibreCat University","_id":"63667"},{"quality_controlled":"1","year":"2022","date_created":"2022-10-20T15:06:39Z","publisher":"Springer International Publishing","title":"Traffic Estimation and MPC-Based Traffic Light System Control in Realistic Real-Time Traffic Environments","publication":"Communications in Computer and Information Science","abstract":[{"lang":"eng","text":"Modern traffic control systems are key to cope with current and future traffic challenges. In this paper information obtained from a microscopic traffic estimation using various data sources is used to feed a new developed traffic control approach. The presented method can control a traffic area with multiple traffic light systems (TLS) reacting to individual road users and pedestrians. In contrast to widespread green time extension techniques, this control selects the best phase sequence by analyzing the current traffic state reconstructed in SUMO and its predicted progress. To achieve this, the key aspect of the control strategy is to use Model Predictive Control (MPC). In order to maintain realism for real world applications, among other things, the traffic phase transitions are modelled in detail and integrated within the prediction. For the efficiency, the approach incorporates a fuzzy logic preselection of all phases reducing the computational effort. The evaluation itself is able to be easily adjusted to focus on various objectives like low occupancies, reducing waiting times and emissions, few number of phase transitions etc. determining the best switching times for the selected phases. Exemplary traffic simulations demonstrate the functionality of the MPC-based control and, in addition, some aspects under development like the real-world communication network are also discussed."}],"language":[{"iso":"eng"}],"keyword":["Traffic control","Traffic estimation","Real-time","MPC","Fuzzy","Isolated intersection","Networked intersection","Sensor fusion"],"related_material":{"record":[{"id":"24159","relation":"continues","status":"public"}]},"publication_identifier":{"isbn":["9783031170973","9783031170980"],"issn":["1865-0929","1865-0937"]},"publication_status":"published","page":"232–254","intvolume":" 1612","citation":{"short":"K. Malena, C. Link, L. Bußemas, S. Gausemeier, A. Trächtler, in: C. Klein, M. Jarke, M. Helfert, K. Berns, O. Gusikhin (Eds.), Communications in Computer and Information Science, Springer International Publishing, Cham, 2022, pp. 232–254.","bibtex":"@inbook{Malena_Link_Bußemas_Gausemeier_Trächtler_2022, place={Cham}, series={Communications in Computer and Information Science}, title={Traffic Estimation and MPC-Based Traffic Light System Control in Realistic Real-Time Traffic Environments}, volume={1612}, DOI={10.1007/978-3-031-17098-0_12}, booktitle={Communications in Computer and Information Science}, publisher={Springer International Publishing}, author={Malena, Kevin and Link, Christopher and Bußemas, Leon and Gausemeier, Sandra and Trächtler, Ansgar}, editor={Klein, Cornel and Jarke, Mathias and Helfert, Markus and Berns, Karsten and Gusikhin, Oleg}, year={2022}, pages={232–254}, collection={Communications in Computer and Information Science} }","mla":"Malena, Kevin, et al. “Traffic Estimation and MPC-Based Traffic Light System Control in Realistic Real-Time Traffic Environments.” Communications in Computer and Information Science, edited by Cornel Klein et al., vol. 1612, Springer International Publishing, 2022, pp. 232–254, doi:10.1007/978-3-031-17098-0_12.","apa":"Malena, K., Link, C., Bußemas, L., Gausemeier, S., & Trächtler, A. (2022). Traffic Estimation and MPC-Based Traffic Light System Control in Realistic Real-Time Traffic Environments. In C. Klein, M. Jarke, M. Helfert, K. Berns, & O. Gusikhin (Eds.), Communications in Computer and Information Science (Vol. 1612, pp. 232–254). Springer International Publishing. https://doi.org/10.1007/978-3-031-17098-0_12","chicago":"Malena, Kevin, Christopher Link, Leon Bußemas, Sandra Gausemeier, and Ansgar Trächtler. “Traffic Estimation and MPC-Based Traffic Light System Control in Realistic Real-Time Traffic Environments.” In Communications in Computer and Information Science, edited by Cornel Klein, Mathias Jarke, Markus Helfert, Karsten Berns, and Oleg Gusikhin, 1612:232–254. Communications in Computer and Information Science. Cham: Springer International Publishing, 2022. https://doi.org/10.1007/978-3-031-17098-0_12.","ieee":"K. Malena, C. Link, L. Bußemas, S. Gausemeier, and A. Trächtler, “Traffic Estimation and MPC-Based Traffic Light System Control in Realistic Real-Time Traffic Environments,” in Communications in Computer and Information Science, vol. 1612, C. Klein, M. Jarke, M. Helfert, K. Berns, and O. Gusikhin, Eds. Cham: Springer International Publishing, 2022, pp. 232–254.","ama":"Malena K, Link C, Bußemas L, Gausemeier S, Trächtler A. Traffic Estimation and MPC-Based Traffic Light System Control in Realistic Real-Time Traffic Environments. In: Klein C, Jarke M, Helfert M, Berns K, Gusikhin O, eds. Communications in Computer and Information Science. Vol 1612. Communications in Computer and Information Science. Springer International Publishing; 2022:232–254. doi:10.1007/978-3-031-17098-0_12"},"place":"Cham","volume":1612,"author":[{"first_name":"Kevin","id":"36303","full_name":"Malena, Kevin","orcid":"0000-0003-1183-4679","last_name":"Malena"},{"full_name":"Link, Christopher","id":"38249","last_name":"Link","first_name":"Christopher"},{"first_name":"Leon","last_name":"Bußemas","id":"51118","full_name":"Bußemas, Leon"},{"first_name":"Sandra","last_name":"Gausemeier","full_name":"Gausemeier, Sandra","id":"17793"},{"first_name":"Ansgar","last_name":"Trächtler","id":"552","full_name":"Trächtler, Ansgar"}],"date_updated":"2026-01-26T08:49:52Z","doi":"10.1007/978-3-031-17098-0_12","type":"book_chapter","status":"public","editor":[{"first_name":"Cornel","full_name":"Klein, Cornel","last_name":"Klein"},{"first_name":"Mathias","last_name":"Jarke","full_name":"Jarke, Mathias"},{"first_name":"Markus","last_name":"Helfert","full_name":"Helfert, Markus"},{"first_name":"Karsten","last_name":"Berns","full_name":"Berns, Karsten"},{"first_name":"Oleg","full_name":"Gusikhin, Oleg","last_name":"Gusikhin"}],"department":[{"_id":"153"}],"series_title":"Communications in Computer and Information Science","user_id":"552","_id":"33849"},{"title":"Assistant nurses and orientation to care robot use in three European countries","doi":"10.1080/0144929x.2022.2042736","publisher":"Informa UK Limited","date_updated":"2026-01-28T09:49:05Z","date_created":"2026-01-28T09:48:50Z","author":[{"first_name":"Outi","full_name":"Tuisku, Outi","last_name":"Tuisku"},{"first_name":"Rose-Marie","last_name":"Johansson-Pajala","full_name":"Johansson-Pajala, Rose-Marie"},{"last_name":"Hoppe","id":"73093","full_name":"Hoppe, Julia Amelie","first_name":"Julia Amelie"},{"full_name":"Pekkarinen, Satu","last_name":"Pekkarinen","first_name":"Satu"},{"first_name":"Lea","last_name":"Hennala","full_name":"Hennala, Lea"},{"first_name":"Kirsten","id":"72497","full_name":"Thommes, Kirsten","last_name":"Thommes"},{"full_name":"Gustafsson, Christine","last_name":"Gustafsson","first_name":"Christine"},{"first_name":"Helinä","full_name":"Melkas, Helinä","last_name":"Melkas"}],"volume":42,"year":"2022","citation":{"ama":"Tuisku O, Johansson-Pajala R-M, Hoppe JA, et al. Assistant nurses and orientation to care robot use in three European countries. Behaviour & Information Technology. 2022;42(6):758-774. doi:10.1080/0144929x.2022.2042736","chicago":"Tuisku, Outi, Rose-Marie Johansson-Pajala, Julia Amelie Hoppe, Satu Pekkarinen, Lea Hennala, Kirsten Thommes, Christine Gustafsson, and Helinä Melkas. “Assistant Nurses and Orientation to Care Robot Use in Three European Countries.” Behaviour & Information Technology 42, no. 6 (2022): 758–74. https://doi.org/10.1080/0144929x.2022.2042736.","ieee":"O. Tuisku et al., “Assistant nurses and orientation to care robot use in three European countries,” Behaviour & Information Technology, vol. 42, no. 6, pp. 758–774, 2022, doi: 10.1080/0144929x.2022.2042736.","apa":"Tuisku, O., Johansson-Pajala, R.-M., Hoppe, J. A., Pekkarinen, S., Hennala, L., Thommes, K., Gustafsson, C., & Melkas, H. (2022). Assistant nurses and orientation to care robot use in three European countries. Behaviour & Information Technology, 42(6), 758–774. https://doi.org/10.1080/0144929x.2022.2042736","mla":"Tuisku, Outi, et al. “Assistant Nurses and Orientation to Care Robot Use in Three European Countries.” Behaviour & Information Technology, vol. 42, no. 6, Informa UK Limited, 2022, pp. 758–74, doi:10.1080/0144929x.2022.2042736.","short":"O. Tuisku, R.-M. Johansson-Pajala, J.A. Hoppe, S. Pekkarinen, L. Hennala, K. Thommes, C. Gustafsson, H. Melkas, Behaviour & Information Technology 42 (2022) 758–774.","bibtex":"@article{Tuisku_Johansson-Pajala_Hoppe_Pekkarinen_Hennala_Thommes_Gustafsson_Melkas_2022, title={Assistant nurses and orientation to care robot use in three European countries}, volume={42}, DOI={10.1080/0144929x.2022.2042736}, number={6}, journal={Behaviour & Information Technology}, publisher={Informa UK Limited}, author={Tuisku, Outi and Johansson-Pajala, Rose-Marie and Hoppe, Julia Amelie and Pekkarinen, Satu and Hennala, Lea and Thommes, Kirsten and Gustafsson, Christine and Melkas, Helinä}, year={2022}, pages={758–774} }"},"intvolume":" 42","page":"758-774","publication_status":"published","publication_identifier":{"issn":["0144-929X","1362-3001"]},"issue":"6","language":[{"iso":"eng"}],"_id":"63778","user_id":"72497","department":[{"_id":"178"},{"_id":"184"}],"status":"public","type":"journal_article","publication":"Behaviour & Information Technology"},{"editor":[{"full_name":"Harmening, Anda-Lisa ","last_name":"Harmening","first_name":"Anda-Lisa "},{"first_name":"Stefanie","last_name":"Leinfeller","full_name":"Leinfeller, Stefanie"},{"first_name":"Rebecca","last_name":"Meier","full_name":"Meier, Rebecca"}],"status":"public","type":"book_chapter","publication":"Wissenstransfer als Aufgabe, Herausforderung und Chance kulturwissenschaftlicher Forschung. ","alternative_title":["Wissenstransfer als Aufgabe, Herausforderung und Chance kulturwissenschaftlicher Forschung. Interdisziplinäre Studien des Paderborner Graduiertenzentrums für Kulturwissenschaften"],"language":[{"iso":"eng"}],"_id":"63386","user_id":"87912","place":"Darmstadt","year":"2022","citation":{"ieee":"K. Elbwart and D. Keatinge, “Teaching Language Internationally – Wissenstransfer in einem deutsch-kanadischen Lehrprojekt in der Lehrer*innenausbildung,” in Wissenstransfer als Aufgabe, Herausforderung und Chance kulturwissenschaftlicher Forschung. , A.-L. Harmening, S. Leinfeller, and R. Meier, Eds. Darmstadt: wbg academic, 2022, pp. 201–229.","chicago":"Elbwart, Katharina, and Dagmar Keatinge. “Teaching Language Internationally – Wissenstransfer in Einem Deutsch-Kanadischen Lehrprojekt in Der Lehrer*innenausbildung.” In Wissenstransfer Als Aufgabe, Herausforderung Und Chance Kulturwissenschaftlicher Forschung. , edited by Anda-Lisa Harmening, Stefanie Leinfeller, and Rebecca Meier, 201–29. Darmstadt: wbg academic, 2022.","ama":"Elbwart K, Keatinge D. Teaching Language Internationally – Wissenstransfer in einem deutsch-kanadischen Lehrprojekt in der Lehrer*innenausbildung. In: Harmening A-L, Leinfeller S, Meier R, eds. Wissenstransfer Als Aufgabe, Herausforderung Und Chance Kulturwissenschaftlicher Forschung. . wbg academic; 2022:201-229.","apa":"Elbwart, K., & Keatinge, D. (2022). Teaching Language Internationally – Wissenstransfer in einem deutsch-kanadischen Lehrprojekt in der Lehrer*innenausbildung. In A.-L. Harmening, S. Leinfeller, & R. Meier (Eds.), Wissenstransfer als Aufgabe, Herausforderung und Chance kulturwissenschaftlicher Forschung. (pp. 201–229). wbg academic.","mla":"Elbwart, Katharina, and Dagmar Keatinge. “Teaching Language Internationally – Wissenstransfer in Einem Deutsch-Kanadischen Lehrprojekt in Der Lehrer*innenausbildung.” Wissenstransfer Als Aufgabe, Herausforderung Und Chance Kulturwissenschaftlicher Forschung. , edited by Anda-Lisa Harmening et al., wbg academic, 2022, pp. 201–29.","short":"K. Elbwart, D. Keatinge, in: A.-L. Harmening, S. Leinfeller, R. 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Interdisziplinäre Studien des Paderborner Graduiertenzentrums für Kulturwissenschaften. . wbg academic; 2022."},"year":"2022","date_created":"2026-02-03T14:51:00Z","author":[{"first_name":"Katharina","full_name":"Elbwart, Katharina","id":"87912","last_name":"Elbwart"},{"id":"128","full_name":"Keatinge, Dagmar","last_name":"Keatinge","first_name":"Dagmar"}],"publisher":"wbg academic","date_updated":"2026-02-03T14:52:37Z","title":"Teaching Language Internationally – Wissenstransfer in einem deutsch-kanadischen Lehrprojekt in der Lehrer*innenausbildung"},{"publication":"F&E Edition: Teaching the United States: Past, Present and Future Visions","type":"journal_article","status":"public","user_id":"87912","_id":"63845","language":[{"iso":"eng"}],"page":"23-34","intvolume":" 27","citation":{"ama":"Alfes L, Elbwart K. Painting America - Fostering visual literacy through art to teach US-American history and culture in EFL classrooms. 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Elbwart, F&E Edition: Teaching the United States: Past, Present and Future Visions 27 (2022) 23–34.","bibtex":"@article{Alfes_Elbwart_2022, title={Painting America - Fostering visual literacy through art to teach US-American history and culture in EFL classrooms}, volume={27}, journal={F&E Edition: Teaching the United States: Past, Present and Future Visions}, author={Alfes, Luisa and Elbwart, Katharina}, year={2022}, pages={23–34} }","apa":"Alfes, L., & Elbwart, K. (2022). Painting America - Fostering visual literacy through art to teach US-American history and culture in EFL classrooms. F&E Edition: Teaching the United States: Past, Present and Future Visions, 27, 23–34."},"year":"2022","volume":27,"date_created":"2026-02-03T14:44:31Z","author":[{"full_name":"Alfes, Luisa","last_name":"Alfes","first_name":"Luisa"},{"last_name":"Elbwart","id":"87912","full_name":"Elbwart, Katharina","first_name":"Katharina"}],"date_updated":"2026-02-03T14:46:41Z","title":"Painting America - Fostering visual literacy through art to teach US-American history and culture in EFL classrooms"},{"type":"journal_article","publication":"Praxis Englisch ","status":"public","_id":"63846","user_id":"87912","language":[{"iso":"eng"}],"year":"2022","citation":{"ama":"Elbwart K. English Only? Multilingualism in EFL classrooms. Praxis Englisch . 2022;3:44-46.","ieee":"K. Elbwart, “English Only? Multilingualism in EFL classrooms,” Praxis Englisch , vol. 3, pp. 44–46, 2022.","chicago":"Elbwart, Katharina. “English Only? Multilingualism in EFL Classrooms.” Praxis Englisch 3 (2022): 44–46.","bibtex":"@article{Elbwart_2022, title={English Only? Multilingualism in EFL classrooms}, volume={3}, journal={Praxis Englisch }, author={Elbwart, Katharina}, year={2022}, pages={44–46} }","mla":"Elbwart, Katharina. “English Only? Multilingualism in EFL Classrooms.” Praxis Englisch , vol. 3, 2022, pp. 44–46.","short":"K. Elbwart, Praxis Englisch 3 (2022) 44–46.","apa":"Elbwart, K. (2022). English Only? Multilingualism in EFL classrooms. Praxis Englisch , 3, 44–46."},"page":"44-46","intvolume":" 3","date_updated":"2026-02-03T14:46:36Z","author":[{"first_name":"Katharina","id":"87912","full_name":"Elbwart, Katharina","last_name":"Elbwart"}],"date_created":"2026-02-03T14:45:15Z","volume":3,"title":"English Only? Multilingualism in EFL classrooms"},{"page":"171-176","citation":{"apa":"Freitag, C. (2022). Vergleichende Perspektive aus dem gleichen Bundesland - ein Kommentar aus Paderborn. In G. Klewin, K. te Poel, & M. Heinrich (Eds.), Empirische Studien zum Praxissemester: Untersuchungen zum Bielefelder Modell (1st ed., pp. 171–176). Waxmann.","mla":"Freitag, Christine. “Vergleichende Perspektive aus dem gleichen Bundesland - ein Kommentar aus Paderborn.” Empirische Studien zum Praxissemester: Untersuchungen zum Bielefelder Modell, edited by Gabriele Klewin et al., 1st ed., Waxmann, 2022, pp. 171–76.","short":"C. Freitag, in: G. Klewin, K. te Poel, M. Heinrich (Eds.), Empirische Studien zum Praxissemester: Untersuchungen zum Bielefelder Modell, 1st ed., Waxmann, Münster, 2022, pp. 171–176.","bibtex":"@inbook{Freitag_2022, place={Münster}, edition={1}, title={Vergleichende Perspektive aus dem gleichen Bundesland - ein Kommentar aus Paderborn}, booktitle={Empirische Studien zum Praxissemester: Untersuchungen zum Bielefelder Modell}, publisher={Waxmann}, author={Freitag, Christine}, editor={Klewin, Gabriele and te Poel, Kathrin and Heinrich, Martin}, year={2022}, pages={171–176} }","ieee":"C. Freitag, “Vergleichende Perspektive aus dem gleichen Bundesland - ein Kommentar aus Paderborn,” in Empirische Studien zum Praxissemester: Untersuchungen zum Bielefelder Modell, 1st ed., G. Klewin, K. te Poel, and M. Heinrich, Eds. Münster: Waxmann, 2022, pp. 171–176.","chicago":"Freitag, Christine. “Vergleichende Perspektive aus dem gleichen Bundesland - ein Kommentar aus Paderborn.” In Empirische Studien zum Praxissemester: Untersuchungen zum Bielefelder Modell, edited by Gabriele Klewin, Kathrin te Poel, and Martin Heinrich, 1st ed., 171–76. Münster: Waxmann, 2022.","ama":"Freitag C. Vergleichende Perspektive aus dem gleichen Bundesland - ein Kommentar aus Paderborn. In: Klewin G, te Poel K, Heinrich M, eds. Empirische Studien zum Praxissemester: Untersuchungen zum Bielefelder Modell. 1st ed. Waxmann; 2022:171-176."},"place":"Münster","year":"2022","edition":"1","publication_identifier":{"isbn":["978-3830945307"]},"publication_status":"published","title":"Vergleichende Perspektive aus dem gleichen Bundesland - ein Kommentar aus Paderborn","author":[{"last_name":"Freitag","id":"20560","full_name":"Freitag, Christine","first_name":"Christine"}],"date_created":"2023-01-19T09:59:34Z","date_updated":"2026-02-05T13:27:39Z","publisher":"Waxmann","status":"public","editor":[{"last_name":"Klewin","full_name":"Klewin, Gabriele","first_name":"Gabriele"},{"last_name":"te Poel","full_name":"te Poel, Kathrin","first_name":"Kathrin"},{"first_name":"Martin","full_name":"Heinrich, Martin","last_name":"Heinrich"}],"publication":"Empirische Studien zum Praxissemester: Untersuchungen zum Bielefelder Modell","type":"book_chapter","language":[{"iso":"ger"}],"department":[{"_id":"453"}],"user_id":"10831","_id":"37538"},{"publication_status":"published","year":"2022","citation":{"ama":"Awais M, Platzner M. Automated Framework for Fast Synthesis of Approximate Hardware Accelerators. In: 2022 IFIP/IEEE 30th International Conference on Very Large Scale Integration (VLSI-SoC). IEEE; 2022. doi:10.1109/vlsi-soc54400.2022.9939606","ieee":"M. Awais and M. Platzner, “Automated Framework for Fast Synthesis of Approximate Hardware Accelerators,” 2022, doi: 10.1109/vlsi-soc54400.2022.9939606.","chicago":"Awais, Muhammad, and Marco Platzner. “Automated Framework for Fast Synthesis of Approximate Hardware Accelerators.” In 2022 IFIP/IEEE 30th International Conference on Very Large Scale Integration (VLSI-SoC). IEEE, 2022. https://doi.org/10.1109/vlsi-soc54400.2022.9939606.","apa":"Awais, M., & Platzner, M. (2022). Automated Framework for Fast Synthesis of Approximate Hardware Accelerators. 2022 IFIP/IEEE 30th International Conference on Very Large Scale Integration (VLSI-SoC). https://doi.org/10.1109/vlsi-soc54400.2022.9939606","bibtex":"@inproceedings{Awais_Platzner_2022, title={Automated Framework for Fast Synthesis of Approximate Hardware Accelerators}, DOI={10.1109/vlsi-soc54400.2022.9939606}, booktitle={2022 IFIP/IEEE 30th International Conference on Very Large Scale Integration (VLSI-SoC)}, publisher={IEEE}, author={Awais, Muhammad and Platzner, Marco}, year={2022} }","short":"M. Awais, M. Platzner, in: 2022 IFIP/IEEE 30th International Conference on Very Large Scale Integration (VLSI-SoC), IEEE, 2022.","mla":"Awais, Muhammad, and Marco Platzner. “Automated Framework for Fast Synthesis of Approximate Hardware Accelerators.” 2022 IFIP/IEEE 30th International Conference on Very Large Scale Integration (VLSI-SoC), IEEE, 2022, doi:10.1109/vlsi-soc54400.2022.9939606."},"publisher":"IEEE","date_updated":"2026-02-11T10:20:33Z","date_created":"2026-02-11T10:20:04Z","author":[{"last_name":"Awais","full_name":"Awais, Muhammad","first_name":"Muhammad"},{"first_name":"Marco","last_name":"Platzner","full_name":"Platzner, Marco"}],"title":"Automated Framework for Fast Synthesis of Approximate Hardware Accelerators","doi":"10.1109/vlsi-soc54400.2022.9939606","type":"conference","publication":"2022 IFIP/IEEE 30th International Conference on Very Large Scale Integration (VLSI-SoC)","status":"public","_id":"64115","user_id":"64665","department":[{"_id":"78"}]},{"type":"journal_article","publication":"Batteries and Supercaps","abstract":[{"text":"Abstract Polymer-derived silicon carbonitride ceramic (SiCN) is used as an electrode material to prepare cylindrical sodium/sodium ion cells for solid-state NMR investigations. During galvanostatic cycling structural changes of the environment of sodium/sodium ions are investigated by applying 23Na in-situ solid-state NMR. Changes of the signals assigned to sodium metal, intercalated sodium cation and sodium cation originating from the electrolyte are monitored as well as the occurrence of an additional signal in the region of metallic sodium. The intensity of this additional signal changes periodically with the cycling process indicating the reversibility of structures formed and deformed during the galvanostatic cycling. To identify interactions of sodium/sodium ions with the SiCN electrode materials, the cycled SiCN material is studied by 23Na ex-situ MAS NMR at high spinning rates of 20 and 50 kHz to obtain appropriate spectral resolution.","lang":"eng"}],"status":"public","_id":"64042","user_id":"100715","language":[{"iso":"eng"}],"extern":"1","year":"2022","citation":{"ieee":"E. Sic et al., “SiCN Ceramics as Electrode Materials for Sodium/Sodium Ion Cells Insights from 23Na In-Situ Solid-State NMR,” Batteries and Supercaps, vol. 5, p. e202200066, 2022, doi: 10.1002/batt.202200066.","chicago":"Sic, Edina, Marco Melzi d’Eril, Konstantin Schutjajew, Magdalena J. Graczyk-Zajac, Hergen Breitzke, Ralf Riedel, Martin Oschatz, Torsten Gutmann, and Gerd Buntkowsky. “SiCN Ceramics as Electrode Materials for Sodium/Sodium Ion Cells Insights from 23Na In-Situ Solid-State NMR.” Batteries and Supercaps 5 (2022): e202200066. https://doi.org/10.1002/batt.202200066.","ama":"Sic E, Melzi d’Eril M, Schutjajew K, et al. SiCN Ceramics as Electrode Materials for Sodium/Sodium Ion Cells Insights from 23Na In-Situ Solid-State NMR. Batteries and Supercaps. 2022;5:e202200066. doi:10.1002/batt.202200066","bibtex":"@article{Sic_Melzi d’Eril_Schutjajew_Graczyk-Zajac_Breitzke_Riedel_Oschatz_Gutmann_Buntkowsky_2022, title={SiCN Ceramics as Electrode Materials for Sodium/Sodium Ion Cells Insights from 23Na In-Situ Solid-State NMR}, volume={5}, DOI={10.1002/batt.202200066}, journal={Batteries and Supercaps}, author={Sic, Edina and Melzi d’Eril, Marco and Schutjajew, Konstantin and Graczyk-Zajac, Magdalena J. and Breitzke, Hergen and Riedel, Ralf and Oschatz, Martin and Gutmann, Torsten and Buntkowsky, Gerd}, year={2022}, pages={e202200066} }","mla":"Sic, Edina, et al. “SiCN Ceramics as Electrode Materials for Sodium/Sodium Ion Cells Insights from 23Na In-Situ Solid-State NMR.” Batteries and Supercaps, vol. 5, 2022, p. e202200066, doi:10.1002/batt.202200066.","short":"E. Sic, M. Melzi d’Eril, K. Schutjajew, M.J. Graczyk-Zajac, H. Breitzke, R. Riedel, M. Oschatz, T. Gutmann, G. Buntkowsky, Batteries and Supercaps 5 (2022) e202200066.","apa":"Sic, E., Melzi d’Eril, M., Schutjajew, K., Graczyk-Zajac, M. J., Breitzke, H., Riedel, R., Oschatz, M., Gutmann, T., & Buntkowsky, G. (2022). SiCN Ceramics as Electrode Materials for Sodium/Sodium Ion Cells Insights from 23Na In-Situ Solid-State NMR. Batteries and Supercaps, 5, e202200066. https://doi.org/10.1002/batt.202200066"},"intvolume":" 5","page":"e202200066","date_updated":"2026-02-17T16:13:15Z","date_created":"2026-02-07T16:10:25Z","author":[{"full_name":"Sic, Edina","last_name":"Sic","first_name":"Edina"},{"first_name":"Marco","last_name":"Melzi d’Eril","full_name":"Melzi d’Eril, Marco"},{"first_name":"Konstantin","full_name":"Schutjajew, Konstantin","last_name":"Schutjajew"},{"full_name":"Graczyk-Zajac, Magdalena J.","last_name":"Graczyk-Zajac","first_name":"Magdalena J."},{"first_name":"Hergen","last_name":"Breitzke","full_name":"Breitzke, Hergen"},{"first_name":"Ralf","last_name":"Riedel","full_name":"Riedel, Ralf"},{"full_name":"Oschatz, Martin","last_name":"Oschatz","first_name":"Martin"},{"first_name":"Torsten","last_name":"Gutmann","full_name":"Gutmann, Torsten","id":"118165"},{"last_name":"Buntkowsky","full_name":"Buntkowsky, Gerd","first_name":"Gerd"}],"volume":5,"title":"SiCN Ceramics as Electrode Materials for Sodium/Sodium Ion Cells Insights from 23Na In-Situ Solid-State NMR","doi":"10.1002/batt.202200066"},{"issue":"11","publication_identifier":{"issn":["0969-0239"]},"intvolume":" 29","page":"6283–6299","citation":{"apa":"Roesler, L., Hoefler, M. V., Breitzke, H., Wissel, T., Herr, K., Heise, H., Gutmann, T., & Buntkowsky, G. (2022). Dirhodium complex immobilization on modified cellulose for highly selective heterogeneous cyclopropanation reactions. Cellulose, 29(11), 6283–6299. https://doi.org/10.1007/s10570-022-04654-y","short":"L. Roesler, M.V. Hoefler, H. Breitzke, T. Wissel, K. Herr, H. Heise, T. Gutmann, G. Buntkowsky, Cellulose 29 (2022) 6283–6299.","mla":"Roesler, L., et al. “Dirhodium Complex Immobilization on Modified Cellulose for Highly Selective Heterogeneous Cyclopropanation Reactions.” Cellulose, vol. 29, no. 11, 2022, pp. 6283–6299, doi:10.1007/s10570-022-04654-y.","bibtex":"@article{Roesler_Hoefler_Breitzke_Wissel_Herr_Heise_Gutmann_Buntkowsky_2022, title={Dirhodium complex immobilization on modified cellulose for highly selective heterogeneous cyclopropanation reactions}, volume={29}, DOI={10.1007/s10570-022-04654-y}, number={11}, journal={Cellulose}, author={Roesler, L. and Hoefler, M. V. and Breitzke, H. and Wissel, T. and Herr, K. and Heise, H. and Gutmann, Torsten and Buntkowsky, G.}, year={2022}, pages={6283–6299} }","chicago":"Roesler, L., M. V. Hoefler, H. Breitzke, T. Wissel, K. Herr, H. Heise, Torsten Gutmann, and G. Buntkowsky. “Dirhodium Complex Immobilization on Modified Cellulose for Highly Selective Heterogeneous Cyclopropanation Reactions.” Cellulose 29, no. 11 (2022): 6283–6299. https://doi.org/10.1007/s10570-022-04654-y.","ieee":"L. Roesler et al., “Dirhodium complex immobilization on modified cellulose for highly selective heterogeneous cyclopropanation reactions,” Cellulose, vol. 29, no. 11, pp. 6283–6299, 2022, doi: 10.1007/s10570-022-04654-y.","ama":"Roesler L, Hoefler MV, Breitzke H, et al. Dirhodium complex immobilization on modified cellulose for highly selective heterogeneous cyclopropanation reactions. Cellulose. 2022;29(11):6283–6299. doi:10.1007/s10570-022-04654-y"},"year":"2022","volume":29,"date_created":"2026-02-07T16:06:07Z","author":[{"full_name":"Roesler, L.","last_name":"Roesler","first_name":"L."},{"first_name":"M. V.","last_name":"Hoefler","full_name":"Hoefler, M. V."},{"last_name":"Breitzke","full_name":"Breitzke, H.","first_name":"H."},{"last_name":"Wissel","full_name":"Wissel, T.","first_name":"T."},{"last_name":"Herr","full_name":"Herr, K.","first_name":"K."},{"full_name":"Heise, H.","last_name":"Heise","first_name":"H."},{"first_name":"Torsten","id":"118165","full_name":"Gutmann, Torsten","last_name":"Gutmann"},{"first_name":"G.","full_name":"Buntkowsky, G.","last_name":"Buntkowsky"}],"date_updated":"2026-02-17T16:13:54Z","doi":"10.1007/s10570-022-04654-y","title":"Dirhodium complex immobilization on modified cellulose for highly selective heterogeneous cyclopropanation reactions","publication":"Cellulose","type":"journal_article","status":"public","abstract":[{"lang":"eng","text":"A novel, efficient approach for the functionalization of microcrystalline cellulose (MCC) is presented. The as-obtained material allows the immobilization of chiral dirhodium catalysts preserving their enantioselectivity in asymmetric cyclopropanation reactions. As model, microcrystalline cellulose is modified with a polyethylene glycol derived linker, and Rh-2(S-DOSP)(4) is grafted on the material to produce a heterogeneous catalyst. SEM images at different stages of the immobilization show an unchanging uniform morphology, providing constantly good separation characteristics. The modification of the cellulose material with the polyethylene derived linker and the immobilization process are monitored using DNP enhanced H-1 -{\\textgreater} C-13 CP MAS NMR, quantitative F-19 MAS NMR, TGA and ICP-OES analysis, confirming the success of the immobilization as well as the stability of bonds between the used linker molecule and the cellulose material. Finally, the evaluation of the produced catalyst is demonstrated in the asymmetric cyclopropanation reaction between styrene and methyl(E)-2-diazo-4-phenylbut-3-enoate showing excellent enantioselectivity with an ee of nearly 90% over a wide temperature range as well as good recyclability characteristics in four consecutive catalysis cycles."}],"user_id":"100715","_id":"64030","extern":"1","language":[{"iso":"eng"}]},{"title":"Strong Cluster-Supported Brønsted Acids: Hexanuclear Niobium Cluster Compounds with Protonated Crown Ether Cations: (Crown-H)2[Nb6Cl12iX6a] (X = Cl or Br) and the Intermediate [Nb6Cl16(H2O)2]·4 dioxane","publisher":"American Chemical Society","date_updated":"2026-02-17T16:16:07Z","volume":61,"author":[{"first_name":"Jonas","last_name":"Koenig","full_name":"Koenig, Jonas"},{"last_name":"Gutmann","full_name":"Gutmann, Torsten","id":"118165","first_name":"Torsten"},{"first_name":"Gerd","last_name":"Buntkowsky","full_name":"Buntkowsky, Gerd"},{"first_name":"Martin","last_name":"Koeckerling","full_name":"Koeckerling, Martin"}],"date_created":"2026-02-07T15:48:14Z","year":"2022","intvolume":" 61","page":"15983–15990","citation":{"ama":"Koenig J, Gutmann T, Buntkowsky G, Koeckerling M. Strong Cluster-Supported Brønsted Acids: Hexanuclear Niobium Cluster Compounds with Protonated Crown Ether Cations: (Crown-H)2[Nb6Cl12iX6a] (X = Cl or Br) and the Intermediate [Nb6Cl16(H2O)2]·4 dioxane. Inorganic Chemistry. 2022;61(40):15983–15990.","chicago":"Koenig, Jonas, Torsten Gutmann, Gerd Buntkowsky, and Martin Koeckerling. “Strong Cluster-Supported Brønsted Acids: Hexanuclear Niobium Cluster Compounds with Protonated Crown Ether Cations: (Crown-H)2[Nb6Cl12iX6a] (X = Cl or Br) and the Intermediate [Nb6Cl16(H2O)2]·4 Dioxane.” Inorganic Chemistry 61, no. 40 (2022): 15983–15990.","ieee":"J. Koenig, T. Gutmann, G. Buntkowsky, and M. Koeckerling, “Strong Cluster-Supported Brønsted Acids: Hexanuclear Niobium Cluster Compounds with Protonated Crown Ether Cations: (Crown-H)2[Nb6Cl12iX6a] (X = Cl or Br) and the Intermediate [Nb6Cl16(H2O)2]·4 dioxane,” Inorganic Chemistry, vol. 61, no. 40, pp. 15983–15990, 2022.","mla":"Koenig, Jonas, et al. “Strong Cluster-Supported Brønsted Acids: Hexanuclear Niobium Cluster Compounds with Protonated Crown Ether Cations: (Crown-H)2[Nb6Cl12iX6a] (X = Cl or Br) and the Intermediate [Nb6Cl16(H2O)2]·4 Dioxane.” Inorganic Chemistry, vol. 61, no. 40, American Chemical Society, 2022, pp. 15983–15990.","short":"J. Koenig, T. Gutmann, G. Buntkowsky, M. Koeckerling, Inorganic Chemistry 61 (2022) 15983–15990.","bibtex":"@article{Koenig_Gutmann_Buntkowsky_Koeckerling_2022, title={Strong Cluster-Supported Brønsted Acids: Hexanuclear Niobium Cluster Compounds with Protonated Crown Ether Cations: (Crown-H)2[Nb6Cl12iX6a] (X = Cl or Br) and the Intermediate [Nb6Cl16(H2O)2]·4 dioxane}, volume={61}, number={40}, journal={Inorganic Chemistry}, publisher={American Chemical Society}, author={Koenig, Jonas and Gutmann, Torsten and Buntkowsky, Gerd and Koeckerling, Martin}, year={2022}, pages={15983–15990} }","apa":"Koenig, J., Gutmann, T., Buntkowsky, G., & Koeckerling, M. (2022). Strong Cluster-Supported Brønsted Acids: Hexanuclear Niobium Cluster Compounds with Protonated Crown Ether Cations: (Crown-H)2[Nb6Cl12iX6a] (X = Cl or Br) and the Intermediate [Nb6Cl16(H2O)2]·4 dioxane. Inorganic Chemistry, 61(40), 15983–15990."},"issue":"40","language":[{"iso":"eng"}],"extern":"1","_id":"63994","user_id":"100715","abstract":[{"text":"Six cluster salts which consist of hexanuclear cluster anions [Nb6Cl12iX6a]2– (X = Cl or Br) and protonated crown ether molecules (15-crown-5 (15cr5) and 12-crown-4 (12cr4)) or crown ether-stabilized oxonium cations as well as one compound consisting of neutral cluster units, [Nb6Cl16(H2O)2]·4 dioxane, were synthesized in good to high yields. The single-crystal X-ray structures of six of these compounds were determined. The cation/anion ratios and the bond distances confirm in all cases oxidized cluster cores with 14 cluster-based electrons. The cations of the cluster salts are either sandwich-type dimers of the formula [(15cr5)H]22+ or [(15cr5)(H3O)]22+ with the protons or oxonium ions embedded in between the crown ether rings or monomeric units in the case of [(12cr4)H]+. 1H NMR investigations show that the cluster salts are strong Brønsted acids. The fact that the cluster core of [Nb6Cl16(H2O)2]·4 dioxane is oxidized but still carries water ligands indicates that within the multi-step reaction sequence of the formation of the cluster-supported acids, the oxidation step happens much faster than the ligand exchange steps. Temperature-dependent 2H MAS NMR spectra of deuterium-exchanged [(15cr5)H]2[Nb6Cl18]·2 CHCl3 are indicative of dynamic processes of the hydrogen-bonded protons within the crown ether molecule. Six cluster salts which consist of hexanuclear cluster anions [Nb6Cl12iX6a]2– (X = Cl or Br) and protonated crown ether molecules (15-crown-5 (15cr5) and 12-crown-4 (12cr4)) or crown ether-stabilized oxonium cations as well as one compound consisting of neutral cluster units, [Nb6Cl16(H2O)2]·4 dioxane, were synthesized in good to high yields. The single-crystal X-ray structures of six of these compounds were determined. The cation/anion ratios and the bond distances confirm in all cases oxidized cluster cores with 14 cluster-based electrons. The cations of the cluster salts are either sandwich-type dimers of the formula [(15cr5)H]22+ or [(15cr5)(H3O)]22+ with the protons or oxonium ions embedded in between the crown ether rings or monomeric units in the case of [(12cr4)H]+. 1H NMR investigations show that the cluster salts are strong Brønsted acids. The fact that the cluster core of [Nb6Cl16(H2O)2]·4 dioxane is oxidized but still carries water ligands indicates that within the multi-step reaction sequence of the formation of the cluster-supported acids, the oxidation step happens much faster than the ligand exchange steps. Temperature-dependent 2H MAS NMR spectra of deuterium-exchanged [(15cr5)H]2[Nb6Cl18]·2 CHCl3 are indicative of dynamic processes of the hydrogen-bonded protons within the crown ether molecule.","lang":"eng"}],"status":"public","publication":"Inorganic Chemistry","type":"journal_article"},{"status":"public","abstract":[{"text":"Abstract Herein we report the mechanochemical Friedel-Crafts alkylation of 1,3,5-triphenylbenzene (TPB) with two organochloride cross-linking agents, dichloromethane (DCM) and chloroform (CHCl3), respectively. During a thorough milling parameter evaluation, the DCM-linked polymers were found to be flexible and extremely sensitive toward parameter changes, which even enables the synthesis of a polymer with a SSABET of 1670 m2/g, on par with the solution-based reference. Contrary, CHCl3-linked polymers are exhibiting a rigid structure, with a high porosity that is widely unaffected by parameter changes. As a result, a polymer with a SSABET of 1280 m2/g could be generated in as little as 30 minutes, outperforming the reported literature analogue in terms of synthesis time and SSABET. To underline the environmental benefits of our fast and solvent-free synthesis approach, the green metrics are discussed, revealing an enhancement of the mass intensity, mass productivity and the E-factor, as well as of synthesis time and the work-up in comparison to the classical synthesis. Therefore, the mechanochemical polymerization is presented as a versatile tool, enabling the generation of highly porous polymers within short reaction times, with a minimal use of chlorinated cross-linker and with the possibility of a post polymerization modification.","lang":"eng"}],"publication":"Journal of Polymer Science","type":"journal_article","extern":"1","language":[{"iso":"eng"}],"user_id":"100715","_id":"63997","page":"62–71","intvolume":" 60","citation":{"ieee":"A. Krusenbaum et al., “The mechanochemical Friedel-Crafts polymerization as a solvent-free cross-linking approach toward microporous polymers,” Journal of Polymer Science, vol. 60, no. 1, pp. 62–71, 2022, doi: 10.1002/pol.20210606.","chicago":"Krusenbaum, Annika, Jonathan Geisler, Fabien Joel Leon Kraus, Sven Grätz, Mark Valentin Höfler, Torsten Gutmann, and Lars Borchardt. “The Mechanochemical Friedel-Crafts Polymerization as a Solvent-Free Cross-Linking Approach toward Microporous Polymers.” Journal of Polymer Science 60, no. 1 (2022): 62–71. https://doi.org/10.1002/pol.20210606.","ama":"Krusenbaum A, Geisler J, Kraus FJL, et al. The mechanochemical Friedel-Crafts polymerization as a solvent-free cross-linking approach toward microporous polymers. Journal of Polymer Science. 2022;60(1):62–71. doi:10.1002/pol.20210606","short":"A. Krusenbaum, J. Geisler, F.J.L. Kraus, S. Grätz, M.V. Höfler, T. Gutmann, L. Borchardt, Journal of Polymer Science 60 (2022) 62–71.","mla":"Krusenbaum, Annika, et al. “The Mechanochemical Friedel-Crafts Polymerization as a Solvent-Free Cross-Linking Approach toward Microporous Polymers.” Journal of Polymer Science, vol. 60, no. 1, 2022, pp. 62–71, doi:10.1002/pol.20210606.","bibtex":"@article{Krusenbaum_Geisler_Kraus_Grätz_Höfler_Gutmann_Borchardt_2022, title={The mechanochemical Friedel-Crafts polymerization as a solvent-free cross-linking approach toward microporous polymers}, volume={60}, DOI={10.1002/pol.20210606}, number={1}, journal={Journal of Polymer Science}, author={Krusenbaum, Annika and Geisler, Jonathan and Kraus, Fabien Joel Leon and Grätz, Sven and Höfler, Mark Valentin and Gutmann, Torsten and Borchardt, Lars}, year={2022}, pages={62–71} }","apa":"Krusenbaum, A., Geisler, J., Kraus, F. J. L., Grätz, S., Höfler, M. V., Gutmann, T., & Borchardt, L. (2022). The mechanochemical Friedel-Crafts polymerization as a solvent-free cross-linking approach toward microporous polymers. Journal of Polymer Science, 60(1), 62–71. https://doi.org/10.1002/pol.20210606"},"year":"2022","issue":"1","doi":"10.1002/pol.20210606","title":"The mechanochemical Friedel-Crafts polymerization as a solvent-free cross-linking approach toward microporous polymers","volume":60,"date_created":"2026-02-07T15:50:44Z","author":[{"full_name":"Krusenbaum, Annika","last_name":"Krusenbaum","first_name":"Annika"},{"full_name":"Geisler, Jonathan","last_name":"Geisler","first_name":"Jonathan"},{"last_name":"Kraus","full_name":"Kraus, Fabien Joel Leon","first_name":"Fabien Joel Leon"},{"full_name":"Grätz, Sven","last_name":"Grätz","first_name":"Sven"},{"first_name":"Mark Valentin","last_name":"Höfler","full_name":"Höfler, Mark Valentin"},{"first_name":"Torsten","last_name":"Gutmann","id":"118165","full_name":"Gutmann, Torsten"},{"last_name":"Borchardt","full_name":"Borchardt, Lars","first_name":"Lars"}],"date_updated":"2026-02-17T16:16:01Z"},{"date_created":"2026-02-07T15:44:52Z","author":[{"first_name":"Markus M.","full_name":"Hoffmann, Markus M.","last_name":"Hoffmann"},{"last_name":"Kealy","full_name":"Kealy, Joseph D.","first_name":"Joseph D."},{"first_name":"Torsten","last_name":"Gutmann","id":"118165","full_name":"Gutmann, Torsten"},{"full_name":"Buntkowsky, Gerd","last_name":"Buntkowsky","first_name":"Gerd"}],"volume":67,"publisher":"American Chemical Society","date_updated":"2026-02-17T16:16:54Z","doi":"10.1021/acs.jced.1c00759","title":"Densities, Viscosities, and Self-Diffusion Coefficients of Several Polyethylene Glycols","issue":"1","citation":{"ieee":"M. M. Hoffmann, J. D. Kealy, T. Gutmann, and G. Buntkowsky, “Densities, Viscosities, and Self-Diffusion Coefficients of Several Polyethylene Glycols,” Journal of Chemical and Engineering Data, vol. 67, no. 1, pp. 88–103, 2022, doi: 10.1021/acs.jced.1c00759.","chicago":"Hoffmann, Markus M., Joseph D. Kealy, Torsten Gutmann, and Gerd Buntkowsky. “Densities, Viscosities, and Self-Diffusion Coefficients of Several Polyethylene Glycols.” Journal of Chemical and Engineering Data 67, no. 1 (2022): 88–103. https://doi.org/10.1021/acs.jced.1c00759.","ama":"Hoffmann MM, Kealy JD, Gutmann T, Buntkowsky G. Densities, Viscosities, and Self-Diffusion Coefficients of Several Polyethylene Glycols. Journal of Chemical and Engineering Data. 2022;67(1):88–103. doi:10.1021/acs.jced.1c00759","bibtex":"@article{Hoffmann_Kealy_Gutmann_Buntkowsky_2022, title={Densities, Viscosities, and Self-Diffusion Coefficients of Several Polyethylene Glycols}, volume={67}, DOI={10.1021/acs.jced.1c00759}, number={1}, journal={Journal of Chemical and Engineering Data}, publisher={American Chemical Society}, author={Hoffmann, Markus M. and Kealy, Joseph D. and Gutmann, Torsten and Buntkowsky, Gerd}, year={2022}, pages={88–103} }","mla":"Hoffmann, Markus M., et al. “Densities, Viscosities, and Self-Diffusion Coefficients of Several Polyethylene Glycols.” Journal of Chemical and Engineering Data, vol. 67, no. 1, American Chemical Society, 2022, pp. 88–103, doi:10.1021/acs.jced.1c00759.","short":"M.M. Hoffmann, J.D. Kealy, T. Gutmann, G. Buntkowsky, Journal of Chemical and Engineering Data 67 (2022) 88–103.","apa":"Hoffmann, M. M., Kealy, J. D., Gutmann, T., & Buntkowsky, G. (2022). Densities, Viscosities, and Self-Diffusion Coefficients of Several Polyethylene Glycols. Journal of Chemical and Engineering Data, 67(1), 88–103. https://doi.org/10.1021/acs.jced.1c00759"},"intvolume":" 67","page":"88–103","year":"2022","user_id":"100715","_id":"63983","language":[{"iso":"eng"}],"extern":"1","type":"journal_article","publication":"Journal of Chemical and Engineering Data","status":"public","abstract":[{"text":"Polyethylene glycol (PEG) is increasingly used as an alternative green chemical solvent. New experimental measurements on density, viscosity, and self-diffusion coefficient are presented for PEG200, PEG400, and several binary mixtures of tri- and hexaethylene glycol covering a temperature range from 298.15 to 358.15 K. Because PEGs are polydisperse, the exact compositions of PEG200 from six different vendors are analytically determined and found to be comparable. Thus, only two of the most differing PEG200 samples are further examined. The effects of water as the most common impurity on densities, viscosities, and self-diffusion coefficients are inspected as well as the results of the “dry” samples obtained by extrapolation to zero water content. The obtained results are carefully compared to the available literature data. The temperature dependence of these physical properties is investigated and found to be linear for density, while viscosity and self-diffusion coefficients follow the Arrhenius law. Attempts to calculate the properties of the binary mixtures and PEG200 samples from the mole fraction weighted average of the physical properties of the mixture components result in reasonable agreement. Agreement between calculated and measured molar volumes is within measurement uncertainty. Agreement of calculated and measured viscosities is mostly within a few percent but increases with decreasing temperature (largest viscosities) reaching values of up to 15%. Similarly, calculated and measured self-diffusion coefficients mostly agree within 20%, which is near the measurement uncertainty, but overestimates increase to 30% for the highest temperatures (largest self-diffusion coefficients).","lang":"eng"}]}]