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1,471 results on '"Paulsen, Friedrich"'

5. The Chemicals between Us--First Results of the Cluster Analyses on Anatomy Embalming Procedures in the German-Speaking Countries

Author

Kerner, Alexander Michael, Biedermann, Uta, Bräuer, Lars, Caspers, Svenja, Doll, Sara, Engelhardt, Maren, Filler, Timm J., Ghebremedhin, Estifanos, Gundlach, Stefanie, Hayn-Leichsenring, Gregor U., Heermann, Stephan, Hettwer-Steeger, Ingrid, Hiepe, Laura, Hirt, Bernhard, Hirtler, Lena, Hörmann, Rom, Kulisch, Christoph, Lange, Tobias, Leube, Rudolf, Meuser, Annika Hela, Müller-Gerbl, Magdalena, Nassenstein, Christina, Neckel, Peter H., Nimtschke, Ute, Paulsen, Friedrich, Prescher, Andreas, Pretterklieber, Michael, Schliwa, Stefanie, Schmidt, Katja, Schmiedl, Andreas, Schomerus, Christof, Schulze-Tanzil, Gundula, Schumacher, Udo, Schumann, Sven, Spindler, Volker, Streicher, Johannes, Tschernig, Thomas, Unverzagt, Axel, Valentiner, Ursula, Viebahn, Christoph, Wedel, Thilo, Weigner, Janet, Weninger, Wolfgang J., Westermann, Jürgen, Weyers, Imke, Waschke, Jens, and Hammer, Niels

Abstract

Hands-on courses utilizing preserved human tissues for educational training offer an important pathway to acquire basic anatomical knowledge. Owing to the reevaluation of formaldehyde limits by the European Commission, a joint approach was chosen by the German-speaking anatomies in Europe (Germany, Austria, Switzerland) to find commonalities among embalming protocols and infrastructure. A survey comprising 537 items was circulated to all anatomies in German-speaking Europe. Clusters were established for "ethanol"-, formaldehyde-based ("FA"), and "other" embalming procedures, depending on the chemicals considered the most relevant for each protocol. The logistical framework, volumes of chemicals, and infrastructure were found to be highly diverse between the groups and protocols. Formaldehyde quantities deployed per annum were three-fold higher in the "FA" (223 L/a) compared to the "ethanol" (71.0 L/a) group, but not for "other" (97.8 L/a), though the volumes injected per body were similar. "FA" was strongly related to table-borne air ventilation and total fixative volumes =1000 L. "Ethanol" was strongly related to total fixative volumes >1000 L, ceiling- and floor-borne air ventilation, and explosion-proof facilities. Air ventilation was found to be installed symmetrically in the mortuary and dissection facilities. Certain predictors exist for the interplay between the embalming used in a given infrastructure and technical measures. The here-established cluster analysis may serve as decision supportive tool when considering altering embalming protocols or establishing joint protocols between institutions, following a best practice approach to cater toward best-suited tissue characteristics for educational purposes, while simultaneously addressing future demands on exposure limits.

Published
2023
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16. The legal and ethical framework governing body donation in Europe – 2nd update on current practice

Author

Brenner, Erich, Bleys, Ronald L.A.W., de Caro, Raffaele, Catereniuc, Ilia, Chirculescu, Andy R.M., Destrieux, Christophe, Eppler, Elisabeth, Filgueira, Luis, Kachlik, David, Kiss, Péter, Lee, Clive, Matveeva, Niki, Natsis, Konstantinos, Pais, Diogo, Paulsen, Friedrich, Piagkou, Maria, Quondamatteo, Fabio, Reglődi, Dóra, Şendemir, Erdoğan, Tranum-Jensen, Jørgen, Tutkuviene, Janina, and Vázquez Osorio, María Teresa

Published
2024
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24. Positive Effects of Medical Hypnosis on Test Anxiety in First Year Medical Students

Author

Hammer, Christian M., Scholz, Michael, Bischofsberger, Larissa, Hammer, Alexander, Kleinsasser, Benedikt, Paulsen, Friedrich, and Burger, Pascal H. M.

Abstract

Test anxiety of 625 medical students was assessed at semester start and two days prior to two oral exams with the PAF questionnaire [Prüfungsangstfragebogen]. Global and subscale scores for the categories "emotionality," "worry," "interference," and "lack of confidence" were obtained at three time points. The first assessment was used to identify those participants (n = 104) who showed the highest PAF scores. Medical hypnosis against test anxiety was performed with one half ten days before the first exam. The other half served as a matched, untreated control group. The mean global PAF scores and the "emotionality" and "lack of confidence" scores showed a statistically significant reduction from assessment to assessment within the hypnosis group, but not in the control group. "Interference" increased significantly in the control group but not in the hypnosis group. In conclusion, medical hypnosis seems to be beneficial and effective in helping students reduce test anxiety.

Published
2022
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34. Morphological Evidence for a Unique Neuromuscular Functional Unit of the Human Vocalis Muscle.

Author

Tracicaru, Rareș-Vasile, Bräuer, Lars, Döllinger, Michael, Schicht, Martin, Tillmann, Bernhard, Hînganu, Delia, Hristian, Liliana, Hînganu, Marius Valeriu, and Paulsen, Friedrich

Abstract

Human vocalization is a complex process that is still only partially understood. Previous studies have suggested the possibility of a localized neuromuscular network of the larynx. Here we investigate this structure in human dissection specimens using multiple immunofluorescence and transmission electron microscopy (TEM). In the area of the pars interna of the thyroarytenoid muscle, muscle fibers are present that are clearly differentiated from skeletal or cardiac muscle cells and show an intermediate ultrastructure. In addition, intramuscular neurons are present that are detectable by both electron and fluorescence microscopy and may have a sensory function in a local neuronal network. Also, several types of sensory and motor synapses are detectable and distributed throughout the pars interna of the thyroarytenoid muscle, with multisynaptic muscle fibers being a common feature. These findings suggest the existence of a previously unrecognized type of muscle fiber coupled to an intramuscular neuronal network, the presence of which could explain functional peculiarities at the laryngeal level. [ABSTRACT FROM AUTHOR]

Published
2024
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