[{"publication":"Johann Gottfried Herder. Die Formation seines Werkes in Bückeburg 1771–1776","department":[{"_id":"446"}],"type":"book_chapter","date_created":"2024-11-25T18:43:35Z","intvolume":" 80","date_updated":"2025-01-16T18:16:05Z","publication_status":"published","author":[{"id":"16220","full_name":"Süßmann, Johannes","orcid":"0000-0001-5716-0863","last_name":"Süßmann","first_name":"Johannes"}],"publication_identifier":{"isbn":["978-3-8353-5687-0","978-3-8353-8698-3"]},"year":"2024","title":"Aus Reflexion in Unmittelbarkeit. Herders Bückeburger Geschichtsphilosophie","language":[{"iso":"ger"}],"series_title":"Schaumburger Studien","citation":{"short":"J. Süßmann, in: S. Brüdermann, L. van Laak (Eds.), Johann Gottfried Herder. Die Formation seines Werkes in Bückeburg 1771–1776, Wallstein, Göttingen, 2024, pp. 171–189.","chicago":"Süßmann, Johannes. “Aus Reflexion in Unmittelbarkeit. Herders Bückeburger Geschichtsphilosophie.” In Johann Gottfried Herder. Die Formation seines Werkes in Bückeburg 1771–1776, edited by Stefan Brüdermann and Lothar van Laak, 80:171–189. Schaumburger Studien. Göttingen: Wallstein, 2024.","apa":"Süßmann, J. (2024). Aus Reflexion in Unmittelbarkeit. Herders Bückeburger Geschichtsphilosophie. In S. Brüdermann & L. van Laak (Eds.), Johann Gottfried Herder. Die Formation seines Werkes in Bückeburg 1771–1776 (Vol. 80, pp. 171–189). Wallstein.","ieee":"J. Süßmann, “Aus Reflexion in Unmittelbarkeit. Herders Bückeburger Geschichtsphilosophie,” in Johann Gottfried Herder. Die Formation seines Werkes in Bückeburg 1771–1776, vol. 80, S. Brüdermann and L. van Laak, Eds. Göttingen: Wallstein, 2024, pp. 171–189.","ama":"Süßmann J. Aus Reflexion in Unmittelbarkeit. Herders Bückeburger Geschichtsphilosophie. In: Brüdermann S, Laak L van, eds. Johann Gottfried Herder. Die Formation seines Werkes in Bückeburg 1771–1776. Vol 80. Schaumburger Studien. Wallstein; 2024:171–189.","bibtex":"@inbook{Süßmann_2024, place={Göttingen}, series={Schaumburger Studien}, title={Aus Reflexion in Unmittelbarkeit. Herders Bückeburger Geschichtsphilosophie}, volume={80}, booktitle={Johann Gottfried Herder. Die Formation seines Werkes in Bückeburg 1771–1776}, publisher={Wallstein}, author={Süßmann, Johannes}, editor={Brüdermann, Stefan and Laak, Lothar van}, year={2024}, pages={171–189}, collection={Schaumburger Studien} }","mla":"Süßmann, Johannes. “Aus Reflexion in Unmittelbarkeit. Herders Bückeburger Geschichtsphilosophie.” Johann Gottfried Herder. Die Formation seines Werkes in Bückeburg 1771–1776, edited by Stefan Brüdermann and Lothar van Laak, vol. 80, Wallstein, 2024, pp. 171–189."},"place":"Göttingen","status":"public","editor":[{"first_name":"Stefan","last_name":"Brüdermann","full_name":"Brüdermann, Stefan"},{"last_name":"Laak","first_name":"Lothar van","full_name":"Laak, Lothar van"}],"volume":80,"user_id":"16220","_id":"57407","publisher":"Wallstein","page":"171–189"},{"status":"public","page":"2933-2938","publisher":"Wiley","_id":"59616","user_id":"62844","volume":366,"citation":{"ieee":"A. Hoppe, A. J. Stepen, L. Köring, and J. Paradies, “Tris(pentafluorophenyl)borane‐Catalyzed Functionalization of Benzylic C−F Bonds,” Advanced Synthesis & Catalysis, vol. 366, no. 13, pp. 2933–2938, 2024, doi: 10.1002/adsc.202400511.","apa":"Hoppe, A., Stepen, A. J., Köring, L., & Paradies, J. (2024). Tris(pentafluorophenyl)borane‐Catalyzed Functionalization of Benzylic C−F Bonds. Advanced Synthesis & Catalysis, 366(13), 2933–2938. https://doi.org/10.1002/adsc.202400511","chicago":"Hoppe, Axel, Arne J. Stepen, Laura Köring, and Jan Paradies. “Tris(Pentafluorophenyl)Borane‐Catalyzed Functionalization of Benzylic C−F Bonds.” Advanced Synthesis & Catalysis 366, no. 13 (2024): 2933–38. https://doi.org/10.1002/adsc.202400511.","short":"A. Hoppe, A.J. Stepen, L. Köring, J. Paradies, Advanced Synthesis & Catalysis 366 (2024) 2933–2938.","mla":"Hoppe, Axel, et al. “Tris(Pentafluorophenyl)Borane‐Catalyzed Functionalization of Benzylic C−F Bonds.” Advanced Synthesis & Catalysis, vol. 366, no. 13, Wiley, 2024, pp. 2933–38, doi:10.1002/adsc.202400511.","bibtex":"@article{Hoppe_Stepen_Köring_Paradies_2024, title={Tris(pentafluorophenyl)borane‐Catalyzed Functionalization of Benzylic C−F Bonds}, volume={366}, DOI={10.1002/adsc.202400511}, number={13}, journal={Advanced Synthesis & Catalysis}, publisher={Wiley}, author={Hoppe, Axel and Stepen, Arne J. and Köring, Laura and Paradies, Jan}, year={2024}, pages={2933–2938} }","ama":"Hoppe A, Stepen AJ, Köring L, Paradies J. Tris(pentafluorophenyl)borane‐Catalyzed Functionalization of Benzylic C−F Bonds. Advanced Synthesis & Catalysis. 2024;366(13):2933-2938. doi:10.1002/adsc.202400511"},"quality_controlled":"1","oa":"1","title":"Tris(pentafluorophenyl)borane‐Catalyzed Functionalization of Benzylic C−F Bonds","year":"2024","author":[{"id":"62844","full_name":"Hoppe, Axel","first_name":"Axel","last_name":"Hoppe"},{"first_name":"Arne J.","last_name":"Stepen","full_name":"Stepen, Arne J."},{"last_name":"Köring","first_name":"Laura","full_name":"Köring, Laura"},{"last_name":"Paradies","first_name":"Jan","orcid":"0000-0002-3698-668X","full_name":"Paradies, Jan","id":"53339"}],"publication_identifier":{"issn":["1615-4150","1615-4169"]},"date_updated":"2025-04-22T06:11:59Z","publication_status":"published","intvolume":" 366","main_file_link":[{"url":"https://advanced.onlinelibrary.wiley.com/doi/10.1002/adsc.202400511","open_access":"1"}],"language":[{"iso":"eng"}],"doi":"10.1002/adsc.202400511","issue":"13","publication":"Advanced Synthesis & Catalysis","abstract":[{"text":"AbstractThe activation of C(sp3)−F bonds by the commercially available catalyst B(C6F5)3 is reported and applied in reactions with arenes, allylic, vinylic and acetylenic silanes, and olefins to achieve a variety of C−C bond formations (45 examples).","lang":"eng"}],"date_created":"2025-04-22T05:59:08Z","type":"journal_article","keyword":["fluoride","bond activation","borane","Lewis acid","C-C bond formation"],"department":[{"_id":"389"}]},{"date_created":"2024-05-12T16:33:41Z","place":"Paderborn","department":[{"_id":"446"},{"_id":"550"}],"oa":"1","type":"misc","citation":{"ama":"Süßmann J. Religion und Freiheit.; 2024.","bibtex":"@book{Süßmann_2024, place={Paderborn}, series={BloKK. Der Blog des Zentrums für Komparative Theologie und Kulturwissenschaften}, title={Religion und Freiheit}, author={Süßmann, Johannes}, year={2024}, collection={BloKK. Der Blog des Zentrums für Komparative Theologie und Kulturwissenschaften} }","mla":"Süßmann, Johannes. Religion und Freiheit. 2024.","chicago":"Süßmann, Johannes. Religion und Freiheit. BloKK. Der Blog des Zentrums für Komparative Theologie und Kulturwissenschaften. Paderborn, 2024.","short":"J. Süßmann, Religion und Freiheit, Paderborn, 2024.","apa":"Süßmann, J. (2024). Religion und Freiheit.","ieee":"J. Süßmann, Religion und Freiheit. Paderborn, 2024."},"project":[{"_id":"1114","name":"Der Begriff der \"Religion\" in der Frühen Neuzeit"}],"language":[{"iso":"ger"}],"_id":"54235","series_title":"BloKK. Der Blog des Zentrums für Komparative Theologie und Kulturwissenschaften","main_file_link":[{"open_access":"1","url":"https://blogs.uni-paderborn.de/zekkblog/2024/05/10/religion-und-freiheit/"}],"user_id":"16220","author":[{"id":"16220","full_name":"Süßmann, Johannes","last_name":"Süßmann","orcid":"0000-0001-5716-0863","first_name":"Johannes"}],"status":"public","title":"Religion und Freiheit","year":"2024","publication_status":"published","date_updated":"2025-04-24T16:25:48Z"},{"publication":"Jahrbuch Sexualitäten 2024","citation":{"mla":"Vukadinovic, Vojin Sasa. “Das It-Girl der Vernunft als Echo der Verhältnisse. Heide Heinz (1939–2022).” Jahrbuch Sexualitäten 2024, 1st ed., Wallstein Verlag, 2024, pp. 199–207.","ama":"Vukadinovic VS. Das It-Girl der Vernunft als Echo der Verhältnisse. Heide Heinz (1939–2022). In: Jahrbuch Sexualitäten 2024. 1st ed. Wallstein Verlag; 2024:199-207.","bibtex":"@inbook{Vukadinovic_2024, place={Göttingen}, edition={1}, title={Das It-Girl der Vernunft als Echo der Verhältnisse. Heide Heinz (1939–2022)}, booktitle={Jahrbuch Sexualitäten 2024}, publisher={Wallstein Verlag}, author={Vukadinovic, Vojin Sasa}, year={2024}, pages={199–207} }","apa":"Vukadinovic, V. S. (2024). Das It-Girl der Vernunft als Echo der Verhältnisse. Heide Heinz (1939–2022). In Jahrbuch Sexualitäten 2024 (1st ed., pp. 199–207). Wallstein Verlag.","ieee":"V. S. Vukadinovic, “Das It-Girl der Vernunft als Echo der Verhältnisse. Heide Heinz (1939–2022),” in Jahrbuch Sexualitäten 2024, 1st ed., Göttingen: Wallstein Verlag, 2024, pp. 199–207.","short":"V.S. Vukadinovic, in: Jahrbuch Sexualitäten 2024, 1st ed., Wallstein Verlag, Göttingen, 2024, pp. 199–207.","chicago":"Vukadinovic, Vojin Sasa. “Das It-Girl der Vernunft als Echo der Verhältnisse. Heide Heinz (1939–2022).” In Jahrbuch Sexualitäten 2024, 1st ed., 199–207. Göttingen: Wallstein Verlag, 2024."},"date_created":"2025-05-18T18:39:03Z","place":"Göttingen","type":"book_chapter","year":"2024","status":"public","title":"Das It-Girl der Vernunft als Echo der Verhältnisse. Heide Heinz (1939–2022)","publication_identifier":{"isbn":["978-3-8353-5635-6 "]},"author":[{"full_name":"Vukadinovic, Vojin Sasa","first_name":"Vojin Sasa","last_name":"Vukadinovic","id":"107131"}],"publication_status":"published","date_updated":"2025-05-20T15:02:52Z","page":"199-207","_id":"59936","publisher":"Wallstein Verlag","edition":"1","language":[{"iso":"ger"}],"user_id":"107131"},{"_id":"59832","language":[{"iso":"eng"}],"editor":[{"full_name":"Barberi, Alessandro","first_name":"Alessandro","last_name":"Barberi"},{"full_name":"Serloth, Barbara","last_name":"Serloth","first_name":"Barbara"},{"id":"107131","full_name":"Vukadinovic, Vojin Sasa","last_name":"Vukadinovic","first_name":"Vojin Sasa"}],"user_id":"107131","publication_identifier":{"isbn":["978-3-89656-344-6"]},"year":"2024","title":"Siebter Oktober Dreiundzwanzig","status":"public","date_updated":"2025-05-30T09:02:13Z","publication_status":"published","date_created":"2025-05-06T16:33:40Z","type":"journal_editor","citation":{"ama":"Barberi A, Serloth B, Vukadinovic VS, eds. Siebter Oktober Dreiundzwanzig.; 2024.","bibtex":"@book{Barberi_Serloth_Vukadinovic_2024, title={Siebter Oktober Dreiundzwanzig}, number={10}, journal={ZUKUNFT. Die Diskussionszeitschrift für Politik, Gesellschaft und Kultur}, year={2024} }","mla":"Barberi, Alessandro, et al., editors. “Siebter Oktober Dreiundzwanzig.” ZUKUNFT. Die Diskussionszeitschrift Für Politik, Gesellschaft Und Kultur, no. 10, 2024.","short":"A. Barberi, B. Serloth, V.S. Vukadinovic, eds., Siebter Oktober Dreiundzwanzig, 2024.","chicago":"Barberi, Alessandro, Barbara Serloth, and Vojin Sasa Vukadinovic, eds. Siebter Oktober Dreiundzwanzig. ZUKUNFT. Die Diskussionszeitschrift Für Politik, Gesellschaft Und Kultur, 2024.","apa":"Siebter Oktober Dreiundzwanzig. (2024). In A. Barberi, B. Serloth, & V. S. Vukadinovic (Eds.), ZUKUNFT. Die Diskussionszeitschrift für Politik, Gesellschaft und Kultur (Issue 10).","ieee":"A. Barberi, B. Serloth, and V. S. Vukadinovic, Eds., Siebter Oktober Dreiundzwanzig, no. 10. 2024."},"publication":"ZUKUNFT. Die Diskussionszeitschrift für Politik, Gesellschaft und Kultur","issue":"10"},{"status":"public","volume":124,"user_id":"117661","_id":"60047","publisher":"Springer Science and Business Media LLC","page":"3421-3431","citation":{"ama":"Wenzel C, Liebig T, Swoboda A, et al. Machine learning predicts peak oxygen uptake and peak power output for customizing cardiopulmonary exercise testing using non-exercise features. European Journal of Applied Physiology. 2024;124(11):3421-3431. doi:10.1007/s00421-024-05543-x","bibtex":"@article{Wenzel_Liebig_Swoboda_Smolareck_Schlagheck_Walzik_Groll_Goulding_Zimmer_2024, title={Machine learning predicts peak oxygen uptake and peak power output for customizing cardiopulmonary exercise testing using non-exercise features}, volume={124}, DOI={10.1007/s00421-024-05543-x}, number={11}, journal={European Journal of Applied Physiology}, publisher={Springer Science and Business Media LLC}, author={Wenzel, Charlotte and Liebig, Thomas and Swoboda, Adrian and Smolareck, Rika and Schlagheck, Marit Lea and Walzik, David and Groll, Andreas and Goulding, Richie P. and Zimmer, Philipp}, year={2024}, pages={3421–3431} }","mla":"Wenzel, Charlotte, et al. “Machine Learning Predicts Peak Oxygen Uptake and Peak Power Output for Customizing Cardiopulmonary Exercise Testing Using Non-Exercise Features.” European Journal of Applied Physiology, vol. 124, no. 11, Springer Science and Business Media LLC, 2024, pp. 3421–31, doi:10.1007/s00421-024-05543-x.","short":"C. Wenzel, T. Liebig, A. Swoboda, R. Smolareck, M.L. Schlagheck, D. Walzik, A. Groll, R.P. Goulding, P. Zimmer, European Journal of Applied Physiology 124 (2024) 3421–3431.","chicago":"Wenzel, Charlotte, Thomas Liebig, Adrian Swoboda, Rika Smolareck, Marit Lea Schlagheck, David Walzik, Andreas Groll, Richie P. Goulding, and Philipp Zimmer. “Machine Learning Predicts Peak Oxygen Uptake and Peak Power Output for Customizing Cardiopulmonary Exercise Testing Using Non-Exercise Features.” European Journal of Applied Physiology 124, no. 11 (2024): 3421–31. https://doi.org/10.1007/s00421-024-05543-x.","apa":"Wenzel, C., Liebig, T., Swoboda, A., Smolareck, R., Schlagheck, M. L., Walzik, D., Groll, A., Goulding, R. P., & Zimmer, P. (2024). Machine learning predicts peak oxygen uptake and peak power output for customizing cardiopulmonary exercise testing using non-exercise features. European Journal of Applied Physiology, 124(11), 3421–3431. https://doi.org/10.1007/s00421-024-05543-x","ieee":"C. Wenzel et al., “Machine learning predicts peak oxygen uptake and peak power output for customizing cardiopulmonary exercise testing using non-exercise features,” European Journal of Applied Physiology, vol. 124, no. 11, pp. 3421–3431, 2024, doi: 10.1007/s00421-024-05543-x."},"intvolume":" 124","date_updated":"2025-06-02T09:34:21Z","publication_status":"published","author":[{"last_name":"Wenzel","first_name":"Charlotte","full_name":"Wenzel, Charlotte"},{"full_name":"Liebig, Thomas","first_name":"Thomas","last_name":"Liebig"},{"full_name":"Swoboda, Adrian","last_name":"Swoboda","first_name":"Adrian"},{"first_name":"Rika","last_name":"Smolareck","full_name":"Smolareck, Rika"},{"full_name":"Schlagheck, Marit Lea","first_name":"Marit Lea","orcid":"0000-0002-8913-6080 ","last_name":"Schlagheck","id":"117661"},{"full_name":"Walzik, David","last_name":"Walzik","first_name":"David"},{"first_name":"Andreas","last_name":"Groll","full_name":"Groll, Andreas"},{"full_name":"Goulding, Richie P.","last_name":"Goulding","first_name":"Richie P."},{"first_name":"Philipp","last_name":"Zimmer","full_name":"Zimmer, Philipp"}],"publication_identifier":{"issn":["1439-6319","1439-6327"]},"title":"Machine learning predicts peak oxygen uptake and peak power output for customizing cardiopulmonary exercise testing using non-exercise features","year":"2024","doi":"10.1007/s00421-024-05543-x","language":[{"iso":"eng"}],"abstract":[{"text":"Abstract\r\n Purpose\r\n Cardiopulmonary exercise testing (CPET) is considered the gold standard for assessing cardiorespiratory fitness. To ensure consistent performance of each test, it is necessary to adapt the power increase of the test protocol to the physical characteristics of each individual. This study aimed to use machine learning models to determine individualized ramp protocols based on non-exercise features. We hypothesized that machine learning models will predict peak oxygen uptake ($$\\dot{V}$$\r\n \r\n V\r\n ˙\r\n \r\n O2peak) and peak power output (PPO) more accurately than conventional multiple linear regression (MLR).\r\n \r\n Methods\r\n The cross-sectional study was conducted with 274 (♀168, ♂106) participants who performed CPET on a cycle ergometer. Machine learning models and multiple linear regression were used to predict $$\\dot{V}$$\r\n \r\n V\r\n ˙\r\n \r\n O2peak and PPO using non-exercise features. The accuracy of the models was compared using criteria such as root mean square error (RMSE). Shapley additive explanation (SHAP) was applied to determine the feature importance.\r\n \r\n Results\r\n The most accurate machine learning model was the random forest (RMSE: 6.52 ml/kg/min [95% CI 5.21–8.17]) for $$\\dot{V}$$\r\n \r\n V\r\n ˙\r\n \r\n O2peak prediction and the gradient boosting regression (RMSE: 43watts [95% CI 35–52]) for PPO prediction. Compared to the MLR, the machine learning models reduced the RMSE by up to 28% and 22% for prediction of $$\\dot{V}$$\r\n \r\n V\r\n ˙\r\n \r\n O2peak and PPO, respectively. Furthermore, SHAP ranked body composition data such as skeletal muscle mass and extracellular water as the most impactful features.\r\n \r\n Conclusion\r\n Machine learning models predict $$\\dot{V}$$\r\n \r\n V\r\n ˙\r\n \r\n O2peak and PPO more accurately than MLR and can be used to individualize CPET protocols. Features that provide information about the participant's body composition contribute most to the improvement of these predictions.\r\n \r\n Trial registration number\r\n DRKS00031401 (6 March 2023, retrospectively registered).\r\n ","lang":"eng"}],"extern":"1","issue":"11","publication":"European Journal of Applied Physiology","type":"journal_article","date_created":"2025-05-27T07:54:52Z"},{"citation":{"ieee":"M. M. Hoffmann, A. A. Gonzalez, M. T. Huynh, K. K. Miller, T. Gutmann, and G. Buntkowsky, “Densities, Viscosities, and Self-Diffusion Coefficients of Octan-1-ol and Related Ether-Alcohols,” Journal of Chemical & Engineering Data, vol. 69, no. 8, pp. 2688–2699, 2024, doi: 10.1021/acs.jced.4c00195.","apa":"Hoffmann, M. M., Gonzalez, A. A., Huynh, M. T., Miller, K. K., Gutmann, T., & Buntkowsky, G. (2024). Densities, Viscosities, and Self-Diffusion Coefficients of Octan-1-ol and Related Ether-Alcohols. Journal of Chemical & Engineering Data, 69(8), 2688–2699. https://doi.org/10.1021/acs.jced.4c00195","short":"M.M. Hoffmann, A.A. Gonzalez, M.T. Huynh, K.K. Miller, T. Gutmann, G. Buntkowsky, Journal of Chemical & Engineering Data 69 (2024) 2688–2699.","chicago":"Hoffmann, Markus M., Anthony A. Gonzalez, Mandy T. Huynh, Kashane K. Miller, Torsten Gutmann, and Gerd Buntkowsky. “Densities, Viscosities, and Self-Diffusion Coefficients of Octan-1-Ol and Related Ether-Alcohols.” Journal of Chemical & Engineering Data 69, no. 8 (2024): 2688–2699. https://doi.org/10.1021/acs.jced.4c00195.","mla":"Hoffmann, Markus M., et al. “Densities, Viscosities, and Self-Diffusion Coefficients of Octan-1-Ol and Related Ether-Alcohols.” Journal of Chemical & Engineering Data, vol. 69, no. 8, American Chemical Society, 2024, pp. 2688–2699, doi:10.1021/acs.jced.4c00195.","bibtex":"@article{Hoffmann_Gonzalez_Huynh_Miller_Gutmann_Buntkowsky_2024, title={Densities, Viscosities, and Self-Diffusion Coefficients of Octan-1-ol and Related Ether-Alcohols}, volume={69}, DOI={10.1021/acs.jced.4c00195}, number={8}, journal={Journal of Chemical & Engineering Data}, publisher={American Chemical Society}, author={Hoffmann, Markus M. and Gonzalez, Anthony A. and Huynh, Mandy T. and Miller, Kashane K. and Gutmann, Torsten and Buntkowsky, Gerd}, year={2024}, pages={2688–2699} }","ama":"Hoffmann MM, Gonzalez AA, Huynh MT, Miller KK, Gutmann T, Buntkowsky G. Densities, Viscosities, and Self-Diffusion Coefficients of Octan-1-ol and Related Ether-Alcohols. Journal of Chemical & Engineering Data. 2024;69(8):2688–2699. doi:10.1021/acs.jced.4c00195"},"status":"public","user_id":"100715","volume":69,"page":"2688–2699","_id":"63980","publisher":"American Chemical Society","extern":"1","abstract":[{"text":"Density, viscosity, and self-diffusion coefficients are reported for octan-1-ol and the related ether-alcohols 2-pentoxy-ethan-1-ol, 3-butoxypropan-1-ol, 4-propoxybutan-1-ol, 5-ethoxypentan-1-ol, and 6-methoxyhexan-1-ol covering temperature ranges from 298.15 to 359.15 K. These new data reveal structure–property relationships affected by the presence and the position of the ether moiety in the molecular structure of the ether-alcohols. Compared to octan-1-ol, the presence of the ether moiety causes an increase in intermolecular hydrogen bonding interactions, resulting in higher densities. The increase in density is less pronounced for those ether-octanols that engage in intramolecular hydrogen bonding. As for the effects of the ether moiety on the dynamics, these are generally faster for the ether-alcohols compared to octan-1-ol, suggesting that hydrogen bonding between ether oxygen and hydroxy hydrogen is weaker compared to hydrogen bonding between two hydroxy groups. The activation energies obtained from an Arrhenius analysis are higher for translational motion than for momentum transfer for all alcohols. There are additional finer details across the ether alcohols for these activation barriers. These differences cancel out for the mathematical product of self-diffusion coefficient and viscosity (Dη). The effect of water impurities on the studied properties was also investigated and found to lead to small increases in densities for all alcohols. Viscosities decrease for octan-1-ol and 2-pentoxyethan-1-ol but increase for the other ether-alcohols that can engage in intramolecular hydrogen bonding. Density, viscosity, and self-diffusion coefficients are reported for octan-1-ol and the related ether-alcohols 2-pentoxy-ethan-1-ol, 3-butoxypropan-1-ol, 4-propoxybutan-1-ol, 5-ethoxypentan-1-ol, and 6-methoxyhexan-1-ol covering temperature ranges from 298.15 to 359.15 K. These new data reveal structure–property relationships affected by the presence and the position of the ether moiety in the molecular structure of the ether-alcohols. Compared to octan-1-ol, the presence of the ether moiety causes an increase in intermolecular hydrogen bonding interactions, resulting in higher densities. The increase in density is less pronounced for those ether-octanols that engage in intramolecular hydrogen bonding. As for the effects of the ether moiety on the dynamics, these are generally faster for the ether-alcohols compared to octan-1-ol, suggesting that hydrogen bonding between ether oxygen and hydroxy hydrogen is weaker compared to hydrogen bonding between two hydroxy groups. The activation energies obtained from an Arrhenius analysis are higher for translational motion than for momentum transfer for all alcohols. There are additional finer details across the ether alcohols for these activation barriers. These differences cancel out for the mathematical product of self-diffusion coefficient and viscosity (Dη). The effect of water impurities on the studied properties was also investigated and found to lead to small increases in densities for all alcohols. Viscosities decrease for octan-1-ol and 2-pentoxyethan-1-ol but increase for the other ether-alcohols that can engage in intramolecular hydrogen bonding.","lang":"eng"}],"issue":"8","publication":"Journal of Chemical & Engineering Data","type":"journal_article","date_created":"2026-02-07T15:43:54Z","date_updated":"2026-02-17T16:16:59Z","intvolume":" 69","title":"Densities, Viscosities, and Self-Diffusion Coefficients of Octan-1-ol and Related Ether-Alcohols","year":"2024","author":[{"full_name":"Hoffmann, Markus M.","last_name":"Hoffmann","first_name":"Markus M."},{"full_name":"Gonzalez, Anthony A.","last_name":"Gonzalez","first_name":"Anthony A."},{"full_name":"Huynh, Mandy T.","last_name":"Huynh","first_name":"Mandy T."},{"full_name":"Miller, Kashane K.","last_name":"Miller","first_name":"Kashane K."},{"last_name":"Gutmann","first_name":"Torsten","full_name":"Gutmann, Torsten","id":"118165"},{"full_name":"Buntkowsky, Gerd","first_name":"Gerd","last_name":"Buntkowsky"}],"publication_identifier":{"issn":["0021-9568"]},"doi":"10.1021/acs.jced.4c00195","language":[{"iso":"eng"}]},{"author":[{"id":"38131","full_name":"Uhe, Benedikt","last_name":"Uhe","first_name":"Benedikt"},{"full_name":"Kuball, Clara-Maria","last_name":"Kuball","first_name":"Clara-Maria"},{"last_name":"Merklein","first_name":"Marion","full_name":"Merklein, Marion"},{"id":"32056","full_name":"Meschut, Gerson","last_name":"Meschut","first_name":"Gerson","orcid":"0000-0002-2763-1246"}],"year":"2024","status":"public","title":"Corrosion behaviour of self-piercing riveted joints with uncoated rivets in high nitrogen steel","date_updated":"2026-02-27T10:06:00Z","_id":"51116","language":[{"iso":"eng"}],"doi":"10.1007/s11740-024-01262-6","user_id":"53912","citation":{"chicago":"Uhe, Benedikt, Clara-Maria Kuball, Marion Merklein, and Gerson Meschut. “Corrosion Behaviour of Self-Piercing Riveted Joints with Uncoated Rivets in High Nitrogen Steel.” Production Engineering, 2024. https://doi.org/10.1007/s11740-024-01262-6.","short":"B. Uhe, C.-M. Kuball, M. Merklein, G. Meschut, Production Engineering (2024).","ama":"Uhe B, Kuball C-M, Merklein M, Meschut G. Corrosion behaviour of self-piercing riveted joints with uncoated rivets in high nitrogen steel. Production Engineering. Published online 2024. doi:10.1007/s11740-024-01262-6","bibtex":"@article{Uhe_Kuball_Merklein_Meschut_2024, title={Corrosion behaviour of self-piercing riveted joints with uncoated rivets in high nitrogen steel}, DOI={10.1007/s11740-024-01262-6}, journal={Production Engineering}, author={Uhe, Benedikt and Kuball, Clara-Maria and Merklein, Marion and Meschut, Gerson}, year={2024} }","apa":"Uhe, B., Kuball, C.-M., Merklein, M., & Meschut, G. (2024). Corrosion behaviour of self-piercing riveted joints with uncoated rivets in high nitrogen steel. Production Engineering. https://doi.org/10.1007/s11740-024-01262-6","mla":"Uhe, Benedikt, et al. “Corrosion Behaviour of Self-Piercing Riveted Joints with Uncoated Rivets in High Nitrogen Steel.” Production Engineering, 2024, doi:10.1007/s11740-024-01262-6.","ieee":"B. Uhe, C.-M. Kuball, M. Merklein, and G. Meschut, “Corrosion behaviour of self-piercing riveted joints with uncoated rivets in high nitrogen steel,” Production Engineering, 2024, doi: 10.1007/s11740-024-01262-6."},"publication":"Production Engineering","abstract":[{"lang":"eng","text":"Self-piercing riveting is an established joining technique for lightweight materials. To increase the sustainability of the rivet manufacturing process, the authors of the present paper have developed an approach for shortening the process chain by omitting the heat treatment and rivet coating. To do this, use is made of high nitrogen steel as the rivet material. Successful joining with these rivets has already been proven, and it has also been shown that a competitive joint strength can be achieved with these rivets. Up until now, no studies have been conducted of the corrosion behaviour of uncoated rivets in high nitrogen steel compared to conventional rivets made of heat-treatable steel with a coating of Almac® or zinc-nickel with topcoat, and the corrosion behaviour of joints manufactured with these rivets has also not been investigated. Furthermore, the suitability of rivets in high nitrogen steel for structures undergoing cathodic dip painting has not been evaluated to date. These are therefore the aims of the research work presented in this paper. Corrosion behaviour is tested by exposing rivets and joints to a salt spray atmosphere. Cross-cut tests are conducted in order to classify the adhesion of cathodic dip paint to the different rivet surfaces and materials. The results of the experimental test show that the cathodic dip paint has sufficient adhesion to the uncoated rivets in high nitrogen steel and that these rivets can therefore be used in the manufacture of car bodies. Due to the stainless properties of the high nitrogen steel, better corrosion resistance is seen by comparison to the commonly used coatings of Almac® and zinc-nickel with topcoat. A study of the corrosion behaviour of the joints shows that the rivet head diameter and rivet head position, in particular, are decisive for preventing crevice corrosion under the rivet head and contact corrosion within the joint. "}],"quality_controlled":"1","date_created":"2024-02-01T15:51:01Z","department":[{"_id":"157"}],"type":"journal_article"},{"project":[{"name":"TRR 285 – B01: TRR 285 - Subproject B01","_id":"140"},{"_id":"52","name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing"},{"name":"TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten","_id":"130"}],"citation":{"bibtex":"@inproceedings{Devulapally_Martin_Tröster_2024, title={Non-rotationally symmetric joints – Mechanisms and load bearing capacity}, DOI={10.21741/9781644903131-183}, booktitle={Materials Research Proceedings}, publisher={Materials Research Forum LLC}, author={Devulapally, Deekshith Reddy and Martin, Sven and Tröster, Thomas}, year={2024} }","ama":"Devulapally DR, Martin S, Tröster T. Non-rotationally symmetric joints – Mechanisms and load bearing capacity. In: Materials Research Proceedings. Materials Research Forum LLC; 2024. doi:10.21741/9781644903131-183","mla":"Devulapally, Deekshith Reddy, et al. “Non-Rotationally Symmetric Joints – Mechanisms and Load Bearing Capacity.” Materials Research Proceedings, Materials Research Forum LLC, 2024, doi:10.21741/9781644903131-183.","chicago":"Devulapally, Deekshith Reddy, Sven Martin, and Thomas Tröster. “Non-Rotationally Symmetric Joints – Mechanisms and Load Bearing Capacity.” In Materials Research Proceedings. Materials Research Forum LLC, 2024. https://doi.org/10.21741/9781644903131-183.","short":"D.R. Devulapally, S. Martin, T. Tröster, in: Materials Research Proceedings, Materials Research Forum LLC, 2024.","ieee":"D. R. Devulapally, S. Martin, and T. Tröster, “Non-rotationally symmetric joints – Mechanisms and load bearing capacity,” 2024, doi: 10.21741/9781644903131-183.","apa":"Devulapally, D. R., Martin, S., & Tröster, T. (2024). Non-rotationally symmetric joints – Mechanisms and load bearing capacity. Materials Research Proceedings. https://doi.org/10.21741/9781644903131-183"},"oa":"1","status":"public","user_id":"76837","publisher":"Materials Research Forum LLC","_id":"55638","abstract":[{"lang":"eng","text":"Abstract. Traditionally, joints are cylindrical and rotationally symmetric. In the present study, non-rotationally symmetric joints are used for joining steel and Glass mat-reinforced thermoplastic sheets (GMT). In addition, the study also analyzes the impact of non-rotational symmetric joint rotation on the load-bearing capacity. Single lap joint specimens were fabricated using the In-Mold assembly technique for joining steel sheets with GMT. Tensile shear tests were performed on different orientations of the joint geometry, and it was observed that changing the joint orientation influences the load-bearing capacity. The joints are constitutively modeled using beam elements and the influence of joint rotation on load distribution is examined through a static simulation study. "}],"publication":"Materials Research Proceedings","department":[{"_id":"149"},{"_id":"321"},{"_id":"9"}],"type":"conference","date_created":"2024-08-19T08:29:22Z","publication_status":"published","date_updated":"2026-02-27T10:50:30Z","author":[{"id":"76837","full_name":"Devulapally, Deekshith Reddy","first_name":"Deekshith Reddy","last_name":"Devulapally"},{"full_name":"Martin, Sven","last_name":"Martin","first_name":"Sven","id":"38177"},{"id":"553","full_name":"Tröster, Thomas","last_name":"Tröster","first_name":"Thomas"}],"publication_identifier":{"issn":["2474-395X"]},"title":"Non-rotationally symmetric joints – Mechanisms and load bearing capacity","year":"2024","doi":"10.21741/9781644903131-183","language":[{"iso":"eng"}],"main_file_link":[{"open_access":"1"}]},{"user_id":"16199","volume":6,"publisher":"American Physical Society (APS)","_id":"61253","status":"public","project":[{"_id":"52","name":"Computing Resources Provided by the Paderborn Center for Parallel Computing"},{"_id":"53","name":"TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten zu funktionellen Strukturen"},{"_id":"56","name":"TRR 142 - Project Area C"},{"_id":"173","name":"TRR 142; TP C09: Ideale Erzeugung von Photonenpaaren für Verschränkungsaustausch bei Telekom Wellenlängen"}],"citation":{"ama":"Heinisch N, Köcher N, Bauch D, Schumacher S. Swing-up dynamics in quantum emitter cavity systems: Near ideal single photons and entangled photon pairs. Physical Review Research. 2024;6(1). doi:10.1103/physrevresearch.6.l012017","bibtex":"@article{Heinisch_Köcher_Bauch_Schumacher_2024, title={Swing-up dynamics in quantum emitter cavity systems: Near ideal single photons and entangled photon pairs}, volume={6}, DOI={10.1103/physrevresearch.6.l012017}, number={1L012017}, journal={Physical Review Research}, publisher={American Physical Society (APS)}, author={Heinisch, Nils and Köcher, Nikolas and Bauch, David and Schumacher, Stefan}, year={2024} }","mla":"Heinisch, Nils, et al. “Swing-up Dynamics in Quantum Emitter Cavity Systems: Near Ideal Single Photons and Entangled Photon Pairs.” Physical Review Research, vol. 6, no. 1, L012017, American Physical Society (APS), 2024, doi:10.1103/physrevresearch.6.l012017.","short":"N. Heinisch, N. Köcher, D. Bauch, S. Schumacher, Physical Review Research 6 (2024).","chicago":"Heinisch, Nils, Nikolas Köcher, David Bauch, and Stefan Schumacher. “Swing-up Dynamics in Quantum Emitter Cavity Systems: Near Ideal Single Photons and Entangled Photon Pairs.” Physical Review Research 6, no. 1 (2024). https://doi.org/10.1103/physrevresearch.6.l012017.","apa":"Heinisch, N., Köcher, N., Bauch, D., & Schumacher, S. (2024). Swing-up dynamics in quantum emitter cavity systems: Near ideal single photons and entangled photon pairs. Physical Review Research, 6(1), Article L012017. https://doi.org/10.1103/physrevresearch.6.l012017","ieee":"N. Heinisch, N. Köcher, D. Bauch, and S. Schumacher, “Swing-up dynamics in quantum emitter cavity systems: Near ideal single photons and entangled photon pairs,” Physical Review Research, vol. 6, no. 1, Art. no. L012017, 2024, doi: 10.1103/physrevresearch.6.l012017."},"doi":"10.1103/physrevresearch.6.l012017","article_number":"L012017","language":[{"iso":"eng"}],"date_updated":"2025-09-12T11:18:05Z","publication_status":"published","intvolume":" 6","title":"Swing-up dynamics in quantum emitter cavity systems: Near ideal single photons and entangled photon pairs","year":"2024","author":[{"id":"90283","last_name":"Heinisch","orcid":"0009-0006-0984-2097","first_name":"Nils","full_name":"Heinisch, Nils"},{"last_name":"Köcher","first_name":"Nikolas","full_name":"Köcher, Nikolas","id":"79191"},{"first_name":"David","last_name":"Bauch","full_name":"Bauch, David"},{"last_name":"Schumacher","first_name":"Stefan","orcid":"0000-0003-4042-4951","full_name":"Schumacher, Stefan","id":"27271"}],"publication_identifier":{"issn":["2643-1564"]},"type":"journal_article","department":[{"_id":"15"},{"_id":"170"},{"_id":"297"},{"_id":"35"},{"_id":"230"},{"_id":"429"},{"_id":"27"}],"date_created":"2025-09-12T11:16:31Z","abstract":[{"lang":"eng","text":"In the SUPER scheme (Swing-UP of the quantum EmitteR population), excitation of a quantum emitter is achieved with two off-resonant, red-detuned laser pulses. This allows the generation of high-quality single photons without the need of complex laser stray light suppression or careful spectral filtering. In the present work, we extend this promising method to quantum emitters, specifically semiconductor quantum dots, inside a resonant optical cavity. A significant advantage of the SUPER scheme is identified in that it eliminates re-excitation of the quantum emitter by suppressing photon emission during the excitation cycle. This, in turn, leads to almost ideal single-photon purity, overcoming a major factor typically limiting the quality of photons generated with quantum emitters in high-quality cavities. We further find that for cavity-mediated biexciton emission of degenerate photon pairs, the SUPER scheme leads to near-perfect biexciton initialization with very high values of polarization entanglement of emitted photon pairs.\r\n \r\n \r\n \r\n \r\n Published by the American Physical Society\r\n 2024\r\n \r\n \r\n "}],"issue":"1","publication":"Physical Review Research"},{"date_created":"2025-10-21T11:21:41Z","type":"journal_article","keyword":["Intergroup contact","Anti-Islam attitudes","Anti-Muslim attitudes","Prejudice","Youth"],"issue":"1","publication":"Zeitschrift für Religion, Gesellschaft und Politik","extern":"1","abstract":[{"text":"Background Anti-Muslim and anti-Islam attitudes are widespread in contemporary western societies. A grassroots movement of mosques tries to reduce prejudice by organizing guided mosque tours for non-Muslims. While this is an opportunity for intergroup contact in a social psychological sense, contact occurs under sometimes difficult conditions. As yet, its effects have not been investigated empirically. Objective We examine (a) whether visits have an immediate and medium-term effect on prejudice toward Islam and (b) how they change the visitors’ subjective images of Muslims. Methods (a) We survey N = 324 secondary school students in a three-wave panel study in 6 guided mosque tours in different parts of Germany, including a control sample. The tour programme was in line with common practice in the mosques. Standardized measurements were taken immediately before and after the tour and again several months later. (b) We asked about subjective images of Muslims and had subjects report their spontaneous associations with the term Muslim. Results (a) Most, but not all, mosque visits significantly alleviate anti-Islam prejudice in the short term. The effects fall off after several months. (b) After the visit, the image of Muslims possessed more concrete religious content, while negative and menacing associations, such as oppression of women, threat, or so-called Islamic State have decreased. Conclusions Outgroup contact in a mosque works as predicted by the intergroup contact research, even under less than optimal conditions. However, there is potential for improvement of the setup of tours in the interest of a more sustainable impact.","lang":"eng"}],"language":[{"iso":"eng"}],"doi":"10.1007/s41682-023-00161-4","title":"Do Guided Mosque Tours Alleviate the Prejudice of Non-Muslims against Islam and Muslims? Evidence from a Quasi-Experimental Panel Study from Germany","year":"2024","publication_identifier":{"issn":["2510-1226"]},"author":[{"last_name":"Janzen","first_name":"Olga","full_name":"Janzen, Olga"},{"full_name":"Diekmann, Isabell","last_name":"Diekmann","first_name":"Isabell","id":"119325"},{"full_name":"Tsolak, Dorian","first_name":"Dorian","last_name":"Tsolak"},{"full_name":"Salentin, Kurt","first_name":"Kurt","last_name":"Salentin"}],"date_updated":"2025-10-21T12:09:06Z","intvolume":" 8","citation":{"short":"O. Janzen, I. Diekmann, D. Tsolak, K. Salentin, Zeitschrift Für Religion, Gesellschaft Und Politik 8 (2024) 129–159.","chicago":"Janzen, Olga, Isabell Diekmann, Dorian Tsolak, and Kurt Salentin. “Do Guided Mosque Tours Alleviate the Prejudice of Non-Muslims against Islam and Muslims? Evidence from a Quasi-Experimental Panel Study from Germany.” Zeitschrift Für Religion, Gesellschaft Und Politik 8, no. 1 (2024): 129–159. https://doi.org/10.1007/s41682-023-00161-4.","ieee":"O. Janzen, I. Diekmann, D. Tsolak, and K. Salentin, “Do Guided Mosque Tours Alleviate the Prejudice of Non-Muslims against Islam and Muslims? Evidence from a Quasi-Experimental Panel Study from Germany,” Zeitschrift für Religion, Gesellschaft und Politik, vol. 8, no. 1, pp. 129–159, 2024, doi: 10.1007/s41682-023-00161-4.","apa":"Janzen, O., Diekmann, I., Tsolak, D., & Salentin, K. (2024). Do Guided Mosque Tours Alleviate the Prejudice of Non-Muslims against Islam and Muslims? Evidence from a Quasi-Experimental Panel Study from Germany. Zeitschrift Für Religion, Gesellschaft Und Politik, 8(1), 129–159. https://doi.org/10.1007/s41682-023-00161-4","bibtex":"@article{Janzen_Diekmann_Tsolak_Salentin_2024, title={Do Guided Mosque Tours Alleviate the Prejudice of Non-Muslims against Islam and Muslims? Evidence from a Quasi-Experimental Panel Study from Germany}, volume={8}, DOI={10.1007/s41682-023-00161-4}, number={1}, journal={Zeitschrift für Religion, Gesellschaft und Politik}, publisher={Springer VS}, author={Janzen, Olga and Diekmann, Isabell and Tsolak, Dorian and Salentin, Kurt}, year={2024}, pages={129–159} }","ama":"Janzen O, Diekmann I, Tsolak D, Salentin K. Do Guided Mosque Tours Alleviate the Prejudice of Non-Muslims against Islam and Muslims? Evidence from a Quasi-Experimental Panel Study from Germany. Zeitschrift für Religion, Gesellschaft und Politik. 2024;8(1):129–159. doi:10.1007/s41682-023-00161-4","mla":"Janzen, Olga, et al. “Do Guided Mosque Tours Alleviate the Prejudice of Non-Muslims against Islam and Muslims? Evidence from a Quasi-Experimental Panel Study from Germany.” Zeitschrift Für Religion, Gesellschaft Und Politik, vol. 8, no. 1, Springer VS, 2024, pp. 129–159, doi:10.1007/s41682-023-00161-4."},"page":" 129–159","_id":"61900","publisher":"Springer VS","user_id":"119325","volume":8,"status":"public"},{"date_created":"2024-10-31T09:11:21Z","keyword":["Digitalisierung","Digitalgeschichte","Umweltgeschichte","Anthropozän","Computer","Rechenzentrum","Digital History"],"type":"conference","oa":"1","department":[{"_id":"514"},{"_id":"615"}],"citation":{"mla":"Schmitt, Martin. Digitalisierung Und Umwelt – Eine Verflochtene Digitalgeschichte Der Gegenwart Im Angesicht Des Klimawandels. 2024.","bibtex":"@article{Schmitt_2024, series={Ringvorlesung UPB4Future}, title={Digitalisierung und Umwelt – eine verflochtene Digitalgeschichte der Gegenwart im Angesicht des Klimawandels}, author={Schmitt, Martin}, year={2024}, collection={Ringvorlesung UPB4Future} }","ama":"Schmitt M. Digitalisierung und Umwelt – eine verflochtene Digitalgeschichte der Gegenwart im Angesicht des Klimawandels. Published online 2024.","ieee":"M. Schmitt, “Digitalisierung und Umwelt – eine verflochtene Digitalgeschichte der Gegenwart im Angesicht des Klimawandels.” 2024.","apa":"Schmitt, M. (2024). Digitalisierung und Umwelt – eine verflochtene Digitalgeschichte der Gegenwart im Angesicht des Klimawandels.","short":"M. Schmitt, (2024).","chicago":"Schmitt, Martin. “Digitalisierung Und Umwelt – Eine Verflochtene Digitalgeschichte Der Gegenwart Im Angesicht Des Klimawandels.” Ringvorlesung UPB4Future, 2024."},"project":[{"name":"Digitalgeschichte des Anthropozäns. Über das Zusammenspiel von Umwelt und digitalen Technologien seit Mitte des 20. Jahrhunderts","_id":"1210"}],"main_file_link":[{"open_access":"1","url":"https://videos.uni-paderborn.de/channel/video/upb-for-future-die-nachhaltigkeitsringvorlesung-ss24-8/219151ea07ef8d695935cc3d04583065/103"}],"language":[{"iso":"eng"}],"_id":"56840","series_title":"Ringvorlesung UPB4Future","user_id":"100968","status":"public","title":"Digitalisierung und Umwelt – eine verflochtene Digitalgeschichte der Gegenwart im Angesicht des Klimawandels","year":"2024","author":[{"first_name":"Martin","last_name":"Schmitt","full_name":"Schmitt, Martin","id":"100968"}],"date_updated":"2025-10-21T16:40:20Z"},{"date_created":"2024-03-12T15:35:33Z","keyword":["Digitalgeschichte","Soziale Medien","Technikgeschichte","World Wide Web","Digitalisierung"],"type":"book_chapter","department":[{"_id":"514"},{"_id":"615"}],"publication":"Soziale Medien – wie sie wurden, was sie sind ","abstract":[{"text":"Sind „soziale Medien“ überhaupt ein Thema für die Geschichtswissenschaft? Ja, denn die längere Geschichte der Digitalisierung, in der die „sozialen Medien“ einzuordnen sind, zählt bereits über 80 Jahre. Konrad Zuse und andere Ingenieure entwickelten seit 1941 die ersten Digitalcomputer, Unternehmer*innen, Wissenschaftler*innen und Staatenlenker*innen setzten diese seit den 1950er Jahren für ihre Zwecke ein, die Zivilgesellschaft adaptierte sie in den darauffolgenden Dekaden – all das prägte die sozio-digitale Landschaft der späteren „sozialen Medien“. Als unmittelbar „nach dem Boom“ etwa um 1970 zahlreiche Industriegesellschaften einen strukturellen Wandel in Wirtschaft, Gesellschaft und Politik durchlebten, war eine Antwort darauf die vermehrte Digitalisierung und Vernetzung. Daraus entwickelte sich die 1990er Jahre als markante Dekade von World Wide Web, Google und Chatdiensten. Die Entwicklung der „sozialen Medien“ ist also unter anderem in eine ökonomische und gesellschaftliche Entwicklung der Aufmerksamkeitsökonomie und in die längeren Veränderungen von Wirtschafts- und Gesellschaftsordnungen der Ausdifferenzierung und partiellen Individualisierung seit den 1960er Jahren einzuordnen. Dadurch lässt sich besser verstehen, welche Prämissen ihnen zugrunde lagen, welche Möglichkeitsräume und Probleme sich daraus ergaben und warum sie die heutige Öffentlichkeit in einer bestimmten Art und Weise dominieren – ohne sie jedoch zu determinieren.","lang":"ger"}],"main_file_link":[{"open_access":"1","url":"https://www.bpb.de/themen/medien-journalismus/soziale-medien/545765/die-vorgeschichte-der-sozialen-medien/"}],"language":[{"iso":"eng"}],"title":"Die Vorgeschichte der „sozialen Medien“. Über die Träume digitaler Vergemeinschaftung und freier Kommunikation","year":"2024","corporate_editor":["Bundeszentrale für politische Bildung"],"author":[{"full_name":"Schmitt, Martin","first_name":"Martin","last_name":"Schmitt","id":"100968"}],"date_updated":"2025-10-21T16:41:46Z","place":"Bonn","oa":"1","citation":{"apa":"Schmitt, M. (2024). Die Vorgeschichte der „sozialen Medien“. Über die Träume digitaler Vergemeinschaftung und freier Kommunikation. In Bundeszentrale für politische Bildung (Ed.), Soziale Medien – wie sie wurden, was sie sind . Bundeszentrale für politische Bildung.","ieee":"M. Schmitt, “Die Vorgeschichte der „sozialen Medien“. Über die Träume digitaler Vergemeinschaftung und freier Kommunikation,” in Soziale Medien – wie sie wurden, was sie sind , Bundeszentrale für politische Bildung, Ed. Bonn: Bundeszentrale für politische Bildung, 2024.","chicago":"Schmitt, Martin. “Die Vorgeschichte Der „sozialen Medien“. Über Die Träume Digitaler Vergemeinschaftung Und Freier Kommunikation.” In Soziale Medien – Wie Sie Wurden, Was Sie Sind , edited by Bundeszentrale für politische Bildung. Bonn: Bundeszentrale für politische Bildung, 2024.","short":"M. Schmitt, in: Bundeszentrale für politische Bildung (Ed.), Soziale Medien – Wie Sie Wurden, Was Sie Sind , Bundeszentrale für politische Bildung, Bonn, 2024.","mla":"Schmitt, Martin. “Die Vorgeschichte Der „sozialen Medien“. Über Die Träume Digitaler Vergemeinschaftung Und Freier Kommunikation.” Soziale Medien – Wie Sie Wurden, Was Sie Sind , edited by Bundeszentrale für politische Bildung, Bundeszentrale für politische Bildung, 2024.","ama":"Schmitt M. Die Vorgeschichte der „sozialen Medien“. Über die Träume digitaler Vergemeinschaftung und freier Kommunikation. In: Bundeszentrale für politische Bildung, ed. Soziale Medien – Wie Sie Wurden, Was Sie Sind . Bundeszentrale für politische Bildung; 2024.","bibtex":"@inbook{Schmitt_2024, place={Bonn}, title={Die Vorgeschichte der „sozialen Medien“. Über die Träume digitaler Vergemeinschaftung und freier Kommunikation}, booktitle={Soziale Medien – wie sie wurden, was sie sind }, publisher={Bundeszentrale für politische Bildung}, author={Schmitt, Martin}, editor={Bundeszentrale für politische Bildung}, year={2024} }"},"quality_controlled":"1","_id":"52511","publisher":"Bundeszentrale für politische Bildung","user_id":"100968","status":"public","jel":["N7"]},{"related_material":{"link":[{"url":"https://www.wochenschau-verlag.de/Geschichtskulturen-im-digitalen-Wandel/41629","relation":"confirmation"},{"relation":"other","url":"https://www.sehepunkte.de/2025/10/39906.html","description":"Rezension für sehepunkte von Jana Dunz-Keck, Deutsches Historisches Institut, Washington, DC"}]},"publication":"Geschichtskulturen im digitalen Wandel?","department":[{"_id":"6"},{"_id":"444"}],"type":"book_chapter","date_created":"2024-08-19T08:30:31Z","publication_status":"published","date_updated":"2025-10-24T09:18:33Z","publication_identifier":{"isbn":["978-3-7344-1629-3"],"issn":["1435-7658"]},"author":[{"first_name":"Olaf","last_name":"Hartung","orcid":"0009-0007-8673-250X","full_name":"Hartung, Olaf","id":"79451"}],"year":"2024","title":"Geschichtskulturen im digitalen Wandel? – Zu den Gründen und Zielen dieses Bandes","series_title":"Forum Historisches Lernen","language":[{"iso":"ger"}],"project":[{"_id":"827","name":"GdW: Geschichte im digitalen Wandel? Geschichtskultur – Erinnerungspraktiken – Historisches Lernen"}],"quality_controlled":"1","citation":{"apa":"Hartung, O. (2024). Geschichtskulturen im digitalen Wandel? – Zu den Gründen und Zielen dieses Bandes. In O. Hartung, A. Krebs, & J. Meyer-Hamme (Eds.), Geschichtskulturen im digitalen Wandel? (1st ed., pp. 9–32). Wochenschau Verlag.","ieee":"O. Hartung, “Geschichtskulturen im digitalen Wandel? – Zu den Gründen und Zielen dieses Bandes,” in Geschichtskulturen im digitalen Wandel?, 1st ed., O. Hartung, A. Krebs, and J. Meyer-Hamme, Eds. Frankfurt/M.: Wochenschau Verlag, 2024, pp. 9–32.","short":"O. Hartung, in: O. Hartung, A. Krebs, J. 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Multinationale Unternehmen der westeuropäischen Chemieindustrie in der Zeit nach dem Boom (1960er-2000er Jahre) (= Nach dem Boom), Göttingen 2023.","intvolume":" 24","date_updated":"2025-11-23T18:56:26Z","_id":"51624","language":[{"iso":"ger"}],"main_file_link":[{"url":"https://www.sehepunkte.de/2024/02/38365.html","open_access":"1"}],"volume":24,"user_id":"27829","citation":{"bibtex":"@article{Staffel_2024, title={Christian Marx: Wegbereiter der Globalisierung. Multinationale Unternehmen der westeuropäischen Chemieindustrie in der Zeit nach dem Boom (1960er-2000er Jahre) (= Nach dem Boom), Göttingen 2023.}, volume={24}, number={2}, journal={Sehepunkte}, author={Staffel, Florian}, year={2024} }","ama":"Staffel F. Christian Marx: Wegbereiter der Globalisierung. Multinationale Unternehmen der westeuropäischen Chemieindustrie in der Zeit nach dem Boom (1960er-2000er Jahre) (= Nach dem Boom), Göttingen 2023. Sehepunkte. 2024;24(2).","mla":"Staffel, Florian. “Christian Marx: Wegbereiter der Globalisierung. Multinationale Unternehmen der westeuropäischen Chemieindustrie in der Zeit nach dem Boom (1960er-2000er Jahre) (= Nach dem Boom), Göttingen 2023.” Sehepunkte, vol. 24, no. 2, 2024.","short":"F. Staffel, Sehepunkte 24 (2024).","chicago":"Staffel, Florian. “Christian Marx: Wegbereiter der Globalisierung. Multinationale Unternehmen der westeuropäischen Chemieindustrie in der Zeit nach dem Boom (1960er-2000er Jahre) (= Nach dem Boom), Göttingen 2023.” Sehepunkte, 2024.","ieee":"F. Staffel, “Christian Marx: Wegbereiter der Globalisierung. Multinationale Unternehmen der westeuropäischen Chemieindustrie in der Zeit nach dem Boom (1960er-2000er Jahre) (= Nach dem Boom), Göttingen 2023.,” Sehepunkte, vol. 24, no. 2. 2024.","apa":"Staffel, F. (2024). Christian Marx: Wegbereiter der Globalisierung. Multinationale Unternehmen der westeuropäischen Chemieindustrie in der Zeit nach dem Boom (1960er-2000er Jahre) (= Nach dem Boom), Göttingen 2023. In Sehepunkte (Vol. 24, Issue 2)."},"publication":"Sehepunkte","issue":"2","date_created":"2024-02-20T15:10:06Z","department":[{"_id":"514"}],"oa":"1","type":"review"},{"doi":"10.4230/LIPIcs.ECOOP.2024.36","language":[{"iso":"eng"}],"series_title":"Leibniz International Proceedings in Informatics (LIPIcs)","intvolume":" 313","date_updated":"2025-12-04T10:41:59Z","author":[{"id":"55745","full_name":"Schiebel, Fabian Benedikt","last_name":"Schiebel","first_name":"Fabian Benedikt","orcid":"0009-0008-6867-9802"},{"full_name":"Sattler, Florian","first_name":"Florian","last_name":"Sattler"},{"first_name":"Philipp Dominik","last_name":"Schubert","full_name":"Schubert, Philipp Dominik"},{"full_name":"Apel, Sven","first_name":"Sven","last_name":"Apel"},{"orcid":"0000-0003-3470-3647","first_name":"Eric","last_name":"Bodden","full_name":"Bodden, Eric","id":"59256"}],"publication_identifier":{"issn":["1868-8969"],"isbn":["978-3-95977-341-6"]},"year":"2024","title":"Scaling Interprocedural Static Data-Flow Analysis to Large C/C++ Applications: An Experience Report","department":[{"_id":"76"},{"_id":"662"}],"type":"conference","date_created":"2024-11-04T13:37:23Z","publication":"38th European Conference on Object-Oriented Programming (ECOOP 2024)","volume":313,"editor":[{"last_name":"Aldrich","first_name":"Jonathan","full_name":"Aldrich, Jonathan"},{"full_name":"Salvaneschi, Guido","first_name":"Guido","last_name":"Salvaneschi"}],"user_id":"15249","_id":"56863","publisher":"Schloss Dagstuhl – Leibniz-Zentrum für Informatik","page":"36:1–36:28","status":"public","place":"Dagstuhl, Germany","citation":{"bibtex":"@inproceedings{Schiebel_Sattler_Schubert_Apel_Bodden_2024, place={Dagstuhl, Germany}, series={Leibniz International Proceedings in Informatics (LIPIcs)}, title={Scaling Interprocedural Static Data-Flow Analysis to Large C/C++ Applications: An Experience Report}, volume={313}, DOI={10.4230/LIPIcs.ECOOP.2024.36}, booktitle={38th European Conference on Object-Oriented Programming (ECOOP 2024)}, publisher={Schloss Dagstuhl – Leibniz-Zentrum für Informatik}, author={Schiebel, Fabian Benedikt and Sattler, Florian and Schubert, Philipp Dominik and Apel, Sven and Bodden, Eric}, editor={Aldrich, Jonathan and Salvaneschi, Guido}, year={2024}, pages={36:1–36:28}, collection={Leibniz International Proceedings in Informatics (LIPIcs)} }","ama":"Schiebel FB, Sattler F, Schubert PD, Apel S, Bodden E. Scaling Interprocedural Static Data-Flow Analysis to Large C/C++ Applications: An Experience Report. In: Aldrich J, Salvaneschi G, eds. 38th European Conference on Object-Oriented Programming (ECOOP 2024). Vol 313. Leibniz International Proceedings in Informatics (LIPIcs). Schloss Dagstuhl – Leibniz-Zentrum für Informatik; 2024:36:1–36:28. doi:10.4230/LIPIcs.ECOOP.2024.36","mla":"Schiebel, Fabian Benedikt, et al. “Scaling Interprocedural Static Data-Flow Analysis to Large C/C++ Applications: An Experience Report.” 38th European Conference on Object-Oriented Programming (ECOOP 2024), edited by Jonathan Aldrich and Guido Salvaneschi, vol. 313, Schloss Dagstuhl – Leibniz-Zentrum für Informatik, 2024, p. 36:1–36:28, doi:10.4230/LIPIcs.ECOOP.2024.36.","short":"F.B. Schiebel, F. Sattler, P.D. Schubert, S. Apel, E. Bodden, in: J. Aldrich, G. Salvaneschi (Eds.), 38th European Conference on Object-Oriented Programming (ECOOP 2024), Schloss Dagstuhl – Leibniz-Zentrum für Informatik, Dagstuhl, Germany, 2024, p. 36:1–36:28.","chicago":"Schiebel, Fabian Benedikt, Florian Sattler, Philipp Dominik Schubert, Sven Apel, and Eric Bodden. “Scaling Interprocedural Static Data-Flow Analysis to Large C/C++ Applications: An Experience Report.” In 38th European Conference on Object-Oriented Programming (ECOOP 2024), edited by Jonathan Aldrich and Guido Salvaneschi, 313:36:1–36:28. Leibniz International Proceedings in Informatics (LIPIcs). Dagstuhl, Germany: Schloss Dagstuhl – Leibniz-Zentrum für Informatik, 2024. https://doi.org/10.4230/LIPIcs.ECOOP.2024.36.","ieee":"F. B. Schiebel, F. Sattler, P. D. Schubert, S. Apel, and E. Bodden, “Scaling Interprocedural Static Data-Flow Analysis to Large C/C++ Applications: An Experience Report,” in 38th European Conference on Object-Oriented Programming (ECOOP 2024), 2024, vol. 313, p. 36:1–36:28, doi: 10.4230/LIPIcs.ECOOP.2024.36.","apa":"Schiebel, F. B., Sattler, F., Schubert, P. D., Apel, S., & Bodden, E. (2024). Scaling Interprocedural Static Data-Flow Analysis to Large C/C++ Applications: An Experience Report. In J. Aldrich & G. Salvaneschi (Eds.), 38th European Conference on Object-Oriented Programming (ECOOP 2024) (Vol. 313, p. 36:1–36:28). Schloss Dagstuhl – Leibniz-Zentrum für Informatik. https://doi.org/10.4230/LIPIcs.ECOOP.2024.36"}},{"citation":{"ieee":"C. Arends, L. L. Wolf, J. Meinecke, S. Barkhofen, T. Weich, and T. Bartley, “Decomposing large unitaries into multimode devices of arbitrary size,” Physical Review Research, vol. 6, no. 1, Art. no. L012043, 2024, doi: 10.1103/physrevresearch.6.l012043.","apa":"Arends, C., Wolf, L. L., Meinecke, J., Barkhofen, S., Weich, T., & Bartley, T. (2024). Decomposing large unitaries into multimode devices of arbitrary size. Physical Review Research, 6(1), Article L012043. https://doi.org/10.1103/physrevresearch.6.l012043","chicago":"Arends, Christian, Lasse Lennart Wolf, Jasmin Meinecke, Sonja Barkhofen, Tobias Weich, and Tim Bartley. “Decomposing Large Unitaries into Multimode Devices of Arbitrary Size.” Physical Review Research 6, no. 1 (2024). https://doi.org/10.1103/physrevresearch.6.l012043.","short":"C. Arends, L.L. Wolf, J. Meinecke, S. Barkhofen, T. Weich, T. Bartley, Physical Review Research 6 (2024).","mla":"Arends, Christian, et al. “Decomposing Large Unitaries into Multimode Devices of Arbitrary Size.” Physical Review Research, vol. 6, no. 1, L012043, American Physical Society (APS), 2024, doi:10.1103/physrevresearch.6.l012043.","bibtex":"@article{Arends_Wolf_Meinecke_Barkhofen_Weich_Bartley_2024, title={Decomposing large unitaries into multimode devices of arbitrary size}, volume={6}, DOI={10.1103/physrevresearch.6.l012043}, number={1L012043}, journal={Physical Review Research}, publisher={American Physical Society (APS)}, author={Arends, Christian and Wolf, Lasse Lennart and Meinecke, Jasmin and Barkhofen, Sonja and Weich, Tobias and Bartley, Tim}, year={2024} }","ama":"Arends C, Wolf LL, Meinecke J, Barkhofen S, Weich T, Bartley T. Decomposing large unitaries into multimode devices of arbitrary size. Physical Review Research. 2024;6(1). doi:10.1103/physrevresearch.6.l012043"},"_id":"52876","publisher":"American Physical Society (APS)","user_id":"48188","volume":6,"status":"public","date_created":"2024-03-26T08:52:05Z","keyword":["General Physics and Astronomy"],"type":"journal_article","department":[{"_id":"623"},{"_id":"15"}],"issue":"1","publication":"Physical Review Research","article_number":"L012043","language":[{"iso":"eng"}],"doi":"10.1103/physrevresearch.6.l012043","title":"Decomposing large unitaries into multimode devices of arbitrary size","year":"2024","author":[{"last_name":"Arends","first_name":"Christian","full_name":"Arends, Christian","id":"43994"},{"id":"45027","last_name":"Wolf","first_name":"Lasse Lennart","orcid":"0000-0001-8893-2045","full_name":"Wolf, Lasse Lennart"},{"full_name":"Meinecke, Jasmin","first_name":"Jasmin","last_name":"Meinecke"},{"full_name":"Barkhofen, Sonja","first_name":"Sonja","last_name":"Barkhofen","id":"48188"},{"first_name":"Tobias","orcid":"0000-0002-9648-6919","last_name":"Weich","full_name":"Weich, Tobias","id":"49178"},{"id":"49683","full_name":"Bartley, Tim","first_name":"Tim","last_name":"Bartley"}],"publication_identifier":{"issn":["2643-1564"]},"date_updated":"2025-12-04T13:38:49Z","publication_status":"published","intvolume":" 6"},{"status":"public","volume":6,"user_id":"27150","_id":"54288","publisher":"American Physical Society (APS)","project":[{"name":"QuPoPCoRN: QUPOPCORN: Quantum Particles on Programmable Complex Reconfigurable Networks","_id":"216"}],"citation":{"apa":"De, S., Ansari, V., Sperling, J., Barkhofen, S., Brecht, B., & Silberhorn, C. (2024). Realization of high-fidelity unitary operations on up to 64 frequency bins. Physical Review Research, 6(2), Article L022040. https://doi.org/10.1103/physrevresearch.6.l022040","ieee":"S. De, V. Ansari, J. Sperling, S. Barkhofen, B. Brecht, and C. Silberhorn, “Realization of high-fidelity unitary operations on up to 64 frequency bins,” Physical Review Research, vol. 6, no. 2, Art. no. L022040, 2024, doi: 10.1103/physrevresearch.6.l022040.","short":"S. De, V. Ansari, J. Sperling, S. Barkhofen, B. Brecht, C. Silberhorn, Physical Review Research 6 (2024).","chicago":"De, Syamsundar, Vahid Ansari, Jan Sperling, Sonja Barkhofen, Benjamin Brecht, and Christine Silberhorn. “Realization of High-Fidelity Unitary Operations on up to 64 Frequency Bins.” Physical Review Research 6, no. 2 (2024). https://doi.org/10.1103/physrevresearch.6.l022040.","mla":"De, Syamsundar, et al. “Realization of High-Fidelity Unitary Operations on up to 64 Frequency Bins.” Physical Review Research, vol. 6, no. 2, L022040, American Physical Society (APS), 2024, doi:10.1103/physrevresearch.6.l022040.","ama":"De S, Ansari V, Sperling J, Barkhofen S, Brecht B, Silberhorn C. Realization of high-fidelity unitary operations on up to 64 frequency bins. Physical Review Research. 2024;6(2). doi:10.1103/physrevresearch.6.l022040","bibtex":"@article{De_Ansari_Sperling_Barkhofen_Brecht_Silberhorn_2024, title={Realization of high-fidelity unitary operations on up to 64 frequency bins}, volume={6}, DOI={10.1103/physrevresearch.6.l022040}, number={2L022040}, journal={Physical Review Research}, publisher={American Physical Society (APS)}, author={De, Syamsundar and Ansari, Vahid and Sperling, Jan and Barkhofen, Sonja and Brecht, Benjamin and Silberhorn, Christine}, year={2024} }"},"intvolume":" 6","date_updated":"2025-12-18T16:14:39Z","publication_status":"published","author":[{"last_name":"De","first_name":"Syamsundar","full_name":"De, Syamsundar"},{"last_name":"Ansari","first_name":"Vahid","full_name":"Ansari, Vahid"},{"full_name":"Sperling, Jan","first_name":"Jan","last_name":"Sperling","orcid":"0000-0002-5844-3205","id":"75127"},{"first_name":"Sonja","last_name":"Barkhofen","full_name":"Barkhofen, Sonja","id":"48188"},{"orcid":"0000-0003-4140-0556 ","last_name":"Brecht","first_name":"Benjamin","full_name":"Brecht, Benjamin","id":"27150"},{"full_name":"Silberhorn, Christine","first_name":"Christine","last_name":"Silberhorn","id":"26263"}],"publication_identifier":{"issn":["2643-1564"]},"title":"Realization of high-fidelity unitary operations on up to 64 frequency bins","year":"2024","doi":"10.1103/physrevresearch.6.l022040","language":[{"iso":"eng"}],"article_number":"L022040","abstract":[{"lang":"eng","text":"The ability to apply user-chosen large-scale unitary operations with high fidelity to a quantum state is key to realizing future photonic quantum technologies. Here, we realize the implementation of programmable unitary operations on up to 64 frequency-bin modes. To benchmark the performance of our system, we probe different quantum walk unitary operations, in particular, Grover walks on four-dimensional hypercubes with similarities exceeding 95% and quantum walks with 400 steps on circles and finite lines with similarities of 98%. Our results open a path toward implementing high-quality unitary operations, which can form the basis for applications in complex tasks, such as Gaussian boson sampling.\r\n \r\n \r\n \r\n \r\n Published by the American Physical Society\r\n 2024\r\n \r\n \r\n "}],"publication":"Physical Review Research","issue":"2","department":[{"_id":"623"},{"_id":"288"},{"_id":"15"}],"type":"journal_article","date_created":"2024-05-14T12:40:48Z"},{"user_id":"31496","volume":391,"page":"3023-3054","publisher":"Springer Science and Business Media LLC","_id":"63248","status":"public","citation":{"mla":"Winkler, Michael. “Externally Forced Blow-up and Optimal Spaces for Source Regularity in the Two-Dimensional Navier–Stokes System.” Mathematische Annalen, vol. 391, no. 2, Springer Science and Business Media LLC, 2024, pp. 3023–54, doi:10.1007/s00208-024-02987-6.","bibtex":"@article{Winkler_2024, title={Externally forced blow-up and optimal spaces for source regularity in the two-dimensional Navier–Stokes system}, volume={391}, DOI={10.1007/s00208-024-02987-6}, number={2}, journal={Mathematische Annalen}, publisher={Springer Science and Business Media LLC}, author={Winkler, Michael}, year={2024}, pages={3023–3054} }","ama":"Winkler M. Externally forced blow-up and optimal spaces for source regularity in the two-dimensional Navier–Stokes system. Mathematische Annalen. 2024;391(2):3023-3054. doi:10.1007/s00208-024-02987-6","ieee":"M. Winkler, “Externally forced blow-up and optimal spaces for source regularity in the two-dimensional Navier–Stokes system,” Mathematische Annalen, vol. 391, no. 2, pp. 3023–3054, 2024, doi: 10.1007/s00208-024-02987-6.","apa":"Winkler, M. (2024). Externally forced blow-up and optimal spaces for source regularity in the two-dimensional Navier–Stokes system. Mathematische Annalen, 391(2), 3023–3054. https://doi.org/10.1007/s00208-024-02987-6","short":"M. Winkler, Mathematische Annalen 391 (2024) 3023–3054.","chicago":"Winkler, Michael. “Externally Forced Blow-up and Optimal Spaces for Source Regularity in the Two-Dimensional Navier–Stokes System.” Mathematische Annalen 391, no. 2 (2024): 3023–54. https://doi.org/10.1007/s00208-024-02987-6."},"doi":"10.1007/s00208-024-02987-6","language":[{"iso":"eng"}],"date_updated":"2025-12-18T20:13:05Z","publication_status":"published","intvolume":" 391","title":"Externally forced blow-up and optimal spaces for source regularity in the two-dimensional Navier–Stokes system","year":"2024","publication_identifier":{"issn":["0025-5831","1432-1807"]},"author":[{"full_name":"Winkler, Michael","last_name":"Winkler","first_name":"Michael","id":"31496"}],"type":"journal_article","date_created":"2025-12-18T19:02:09Z","abstract":[{"lang":"eng","text":"Abstract\r\n The Navier–Stokes system \r\n \r\n $$\\begin{aligned} \\left\\{ \\begin{array}{l} u_t + (u\\cdot \\nabla ) u =\\Delta u+\\nabla P + f(x,t), \\\\ \\nabla \\cdot u=0, \\end{array} \\right. \\end{aligned}$$\r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n u\r\n t\r\n \r\n +\r\n \r\n (\r\n u\r\n ·\r\n ∇\r\n )\r\n \r\n u\r\n =\r\n Δ\r\n u\r\n +\r\n ∇\r\n P\r\n +\r\n f\r\n \r\n (\r\n x\r\n ,\r\n t\r\n )\r\n \r\n ,\r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n ∇\r\n ·\r\n u\r\n =\r\n 0\r\n ,\r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n is considered along with homogeneous Dirichlet boundary conditions in a smoothly bounded planar domain \r\n \r\n $$\\Omega $$\r\n \r\n Ω\r\n \r\n \r\n . It is firstly, inter alia, observed that if \r\n \r\n $$T>0$$\r\n \r\n \r\n T\r\n >\r\n 0\r\n \r\n \r\n \r\n and \r\n \r\n $$\\begin{aligned} \\int _0^T \\bigg \\{ \\int _\\Omega |f(x,t)| \\cdot \\ln ^\\frac{1}{2} \\big (|f(x,t)|+1\\big ) dx \\bigg \\}^2 dt <\\infty , \\end{aligned}$$\r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n ∫\r\n 0\r\n T\r\n \r\n \r\n {\r\n \r\n \r\n ∫\r\n Ω\r\n \r\n \r\n |\r\n f\r\n \r\n (\r\n x\r\n ,\r\n t\r\n )\r\n \r\n |\r\n \r\n ·\r\n \r\n ln\r\n \r\n 1\r\n 2\r\n \r\n \r\n \r\n (\r\n \r\n \r\n |\r\n f\r\n \r\n (\r\n x\r\n ,\r\n t\r\n )\r\n \r\n |\r\n \r\n +\r\n 1\r\n \r\n )\r\n \r\n d\r\n x\r\n \r\n \r\n }\r\n \r\n 2\r\n \r\n d\r\n t\r\n <\r\n ∞\r\n ,\r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n then for all divergence-free \r\n \r\n $$u_0\\in L^2(\\Omega ;{\\mathbb {R}}^2)$$\r\n \r\n \r\n \r\n u\r\n 0\r\n \r\n ∈\r\n \r\n L\r\n 2\r\n \r\n \r\n (\r\n Ω\r\n ;\r\n \r\n \r\n R\r\n \r\n 2\r\n \r\n )\r\n \r\n \r\n \r\n \r\n , a corresponding initial-boundary value problem admits a weak solution u with \r\n \r\n $$u|_{t=0}=u_0$$\r\n \r\n \r\n \r\n \r\n u\r\n |\r\n \r\n \r\n t\r\n =\r\n 0\r\n \r\n \r\n =\r\n \r\n u\r\n 0\r\n \r\n \r\n \r\n \r\n . For any positive and nondecreasing \r\n \r\n $$L\\in C^0([0,\\infty ))$$\r\n \r\n \r\n L\r\n ∈\r\n \r\n C\r\n 0\r\n \r\n \r\n (\r\n \r\n [\r\n 0\r\n ,\r\n ∞\r\n )\r\n \r\n )\r\n \r\n \r\n \r\n \r\n such that \r\n \r\n $$\\begin{aligned} \\frac{L(\\xi )}{\\ln ^\\frac{1}{2} \\xi } \\rightarrow 0 \\qquad \\text{ as } \\xi \\rightarrow \\infty , \\end{aligned}$$\r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n L\r\n (\r\n ξ\r\n )\r\n \r\n \r\n \r\n ln\r\n \r\n 1\r\n 2\r\n \r\n \r\n ξ\r\n \r\n \r\n →\r\n 0\r\n \r\n \r\n as\r\n \r\n ξ\r\n →\r\n ∞\r\n ,\r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n this is complemented by a statement on nonexistence of such a solution in the presence of smooth initial data and a suitably constructed \r\n \r\n $$f:\\Omega \\times (0,T)\\rightarrow {\\mathbb {R}}^2$$\r\n \r\n \r\n f\r\n :\r\n Ω\r\n ×\r\n \r\n (\r\n 0\r\n ,\r\n T\r\n )\r\n \r\n →\r\n \r\n \r\n R\r\n \r\n 2\r\n \r\n \r\n \r\n \r\n fulfilling \r\n \r\n $$\\begin{aligned} \\int _0^T \\bigg \\{ \\int _\\Omega |f(x,t)| \\cdot L\\big (|f(x,t)|\\big ) dx \\bigg \\}^2 dt < \\infty . \\end{aligned}$$\r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n ∫\r\n 0\r\n T\r\n \r\n \r\n {\r\n \r\n \r\n ∫\r\n Ω\r\n \r\n \r\n |\r\n f\r\n \r\n (\r\n x\r\n ,\r\n t\r\n )\r\n \r\n |\r\n \r\n ·\r\n \r\n L\r\n \r\n (\r\n \r\n |\r\n f\r\n \r\n (\r\n x\r\n ,\r\n t\r\n )\r\n \r\n |\r\n \r\n )\r\n \r\n d\r\n x\r\n \r\n \r\n \r\n }\r\n \r\n 2\r\n \r\n d\r\n t\r\n <\r\n ∞\r\n .\r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n This resolves a fine structure in the borderline case \r\n \r\n $$p=1$$\r\n \r\n \r\n p\r\n =\r\n 1\r\n \r\n \r\n \r\n and \r\n \r\n $$q=2$$\r\n \r\n \r\n q\r\n =\r\n 2\r\n \r\n \r\n \r\n appearing in results on existence of weak solutions for sources in \r\n \r\n $$L^q((0,T);L^p(\\Omega ;{\\mathbb {R}}^2))$$\r\n \r\n \r\n \r\n L\r\n q\r\n \r\n \r\n (\r\n \r\n (\r\n 0\r\n ,\r\n T\r\n )\r\n \r\n ;\r\n \r\n L\r\n p\r\n \r\n \r\n (\r\n Ω\r\n ;\r\n \r\n \r\n R\r\n \r\n 2\r\n \r\n )\r\n \r\n )\r\n \r\n \r\n \r\n \r\n when \r\n \r\n $$p\\in (1,\\infty ]$$\r\n \r\n \r\n p\r\n ∈\r\n (\r\n 1\r\n ,\r\n ∞\r\n ]\r\n \r\n \r\n \r\n and \r\n \r\n $$q\\in [1,\\infty ]$$\r\n \r\n \r\n q\r\n ∈\r\n [\r\n 1\r\n ,\r\n ∞\r\n ]\r\n \r\n \r\n \r\n satisfy \r\n \r\n $$\\frac{1}{p}+\\frac{1}{q}\\le \\frac{3}{2}$$\r\n \r\n \r\n \r\n 1\r\n p\r\n \r\n +\r\n \r\n 1\r\n q\r\n \r\n ≤\r\n \r\n 3\r\n 2\r\n \r\n \r\n \r\n \r\n , and on nonexistence if here \r\n \r\n $$p\\in [1,\\infty )$$\r\n \r\n \r\n p\r\n ∈\r\n [\r\n 1\r\n ,\r\n ∞\r\n )\r\n \r\n \r\n \r\n and \r\n \r\n $$q\\in [1,\\infty )$$\r\n \r\n \r\n q\r\n ∈\r\n [\r\n 1\r\n ,\r\n ∞\r\n )\r\n \r\n \r\n \r\n are such that \r\n \r\n $$\\frac{1}{p}+\\frac{1}{q}>\\frac{3}{2}$$\r\n \r\n \r\n \r\n 1\r\n p\r\n \r\n +\r\n \r\n 1\r\n q\r\n \r\n >\r\n \r\n 3\r\n 2\r\n \r\n \r\n \r\n \r\n ."}],"issue":"2","publication":"Mathematische Annalen"}]