TY - CHAP A1 - Hahn, A. A1 - Kost, A. T1 - Comparison of Fields and Shielding in Perforated Aluminium and Steel Boxes T2 - Selected papers from the Tenth Biennial IEEE Conference on Electromagnetic Field Computation (CEFC '02), Perugia University, Perugia, Italy, June 16 - 19, 2002 Y1 - 2002 PB - IEEE Magnetics Soc. CY - Piscataway ER - TY - CHAP A1 - Hahn, A. A1 - Kost, A. A1 - Jänicke, Lutz A1 - Miethner, K. T1 - Fields and shielding by eddy currents in perforated boxes T2 - Proceedings, ISTET'01, XI. International Symposium on Theoretical Electrical Engineering, August 19 - 22, 2001, Linz, Austria, Vol. 1 Y1 - 2001 SN - 3-9501491-1-2 SP - 55 EP - 60 CY - Linz ER - TY - GEN A1 - Maqbool, Fawad A1 - Maaß, Fabian A1 - Buhl, Johannes A1 - Hahn, Marlon A1 - Hajavifard, Ramin A1 - Walther, Frank A1 - Tekkaya, A. Erman A1 - Bambach, Markus T1 - Targeted residual stress generation in single and two point incremental sheet forming (ISF) T2 - Archive of Applied Mechanics Y1 - 2021 U6 - https://doi.org/10.1007/s00419-021-01935-z SN - 1432-0681 SN - 0939-1533 VL - 91 IS - 8 SP - 3465 EP - 3487 ER - TY - GEN A1 - von Werder, Dina A1 - Aubele, Maria A1 - Regnath, Franziska A1 - Tebbe, Elisabeth A1 - Mladenov, Dejan A1 - von Rheinbaben, Victoria A1 - Hahn, Elisabeth A1 - Schäfer, Daniel A1 - Biersack, Katharina A1 - Adorjan, Kristina A1 - Stubbe, Hans C. A1 - Bogaerts, Katleen A1 - Jörres, Rudolf A. A1 - Nowak, Dennis A1 - Van den Bergh, Omer A1 - Glasauer, Stefan A1 - Lehnen, Nadine T1 - Increased breathlessness in post-COVID syndrome despite normal breathing patterns in a rebreathing challenge T2 - Scientific reports N2 - Severe symptoms in the absence of measurable body pathology are a frequent hallmark of post-COVID syndrome. From a Bayesian Brain perspective, such symptoms can be explained by incorrect internal models that the brain uses to interpret sensory signals. In this pre-registered study, we investigate whether induced breathlessness perception during a controlled CO2rebreathing challenge is reflected by altered respiratory measures (physiology and breathing patterns), and propose different computational mechanisms that could explain our findings in a Bayesian Brain framework. We analysed data from 40 patients with post-COVID syndrome and 40 healthy participants. Results from lung function, neurological and neurocognitive examination of all participants were within normal limits on the day of the experiment. Using a Bayesian repeated-measures ANOVA, we found that patients’ breathlessness was strongly increased (BF10,baseline =8.029, BF10,rebreathing =11636, BF10,recovery =43662) compared to controls. When excluding patients who hyperventilated (N = 8, 20%) during the experiment from the analysis, differences in breathlessness remained (BF10,baseline =1.283, BF10,rebreathing =126.812, BF10,recovery =751.282). For physiology and breathing patterns, all evidence pointed towards no difference between the two groups (0.307  BF10 < 0.704). In summary, we found intact breathing patterns and physiology but increased symptom perception in patients with post-COVID syndrome. Y1 - 2025 U6 - https://doi.org/10.1038/s41598-025-11728-x SN - 2045-2322 VL - 15 IS - 1 SP - 1 EP - 15 PB - Springer Nature CY - [London] ER -