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Germer CT, Herrmann P, Hofmann S. Nachruf auf Jörg Rüdiger Siewert. Chirurgie (Heidelb) 2024; 95:219-220. [PMID: 38360871 DOI: 10.1007/s00104-024-02046-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/17/2024]
Affiliation(s)
- C-T Germer
- Klinik für Allgemein‑, Viszeral‑, Transplantations‑, Gefäß- und Kinderchirurgie, Universitätsklinikum Würzburg, Zentrum Operative Medizin (ZOM), Oberdürrbacher Str. 6, 97080, Würzburg, Deutschland.
| | - P Herrmann
- Springer Medizin Verlag, Fachzeitschriften Medizin, Heidelberg, Deutschland
| | - S Hofmann
- Springer Medizin Verlag, Fachzeitschriften Medizin, Heidelberg, Deutschland
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Kegel S, Achenbach P, Bacca S, Barnea N, Beričič J, Bosnar D, Correa L, Distler MO, Esser A, Fonvieille H, Friščić I, Heilig M, Herrmann P, Hoek M, Klag P, Kolar T, Leidemann W, Merkel H, Mihovilovič M, Müller J, Müller U, Orlandini G, Pochodzalla J, Schlimme BS, Schoth M, Schulz F, Sfienti C, Širca S, Spreckels R, Stöttinger Y, Thiel M, Tyukin A, Walcher T, Weber A. Measurement of the α-Particle Monopole Transition Form Factor Challenges Theory: A Low-Energy Puzzle for Nuclear Forces? Phys Rev Lett 2023; 130:152502. [PMID: 37115897 DOI: 10.1103/physrevlett.130.152502] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 10/06/2022] [Accepted: 01/26/2023] [Indexed: 06/19/2023]
Abstract
We perform a systematic study of the α-particle excitation from its ground state 0_{1}^{+} to the 0_{2}^{+} resonance. The so-called monopole transition form factor is investigated via an electron scattering experiment in a broad Q^{2} range (from 0.5 to 5.0 fm^{-2}). The precision of the new data dramatically supersedes that of older sets of data, each covering only a portion of the Q^{2} range. The new data allow the determination of two coefficients in a low-momentum expansion, leading to a new puzzle. By confronting experiment to state-of-the-art theoretical calculations, we observe that modern nuclear forces, including those derived within chiral effective field theory that are well tested on a variety of observables, fail to reproduce the excitation of the α particle.
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Affiliation(s)
- S Kegel
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - P Achenbach
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - S Bacca
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
- Helmholtz-Institut Mainz, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - N Barnea
- Racah Institute of Physics, Hebrew University, 91904 Jerusalem, Israel
| | - J Beričič
- Jožef Stefan Institute, SI-1000 Ljubljana, Slovenia
| | - D Bosnar
- Department of Physics, Faculty of Science, University of Zagreb, 10000 Zagreb, Croatia
| | - L Correa
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
- Université Clermont Auvergne, CNRS/IN2P3, LPC, F-63000 Clermont-Ferrand, France
| | - M O Distler
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - A Esser
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - H Fonvieille
- Université Clermont Auvergne, CNRS/IN2P3, LPC, F-63000 Clermont-Ferrand, France
| | - I Friščić
- Department of Physics, Faculty of Science, University of Zagreb, 10000 Zagreb, Croatia
| | - M Heilig
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - P Herrmann
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - M Hoek
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - P Klag
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - T Kolar
- Jožef Stefan Institute, SI-1000 Ljubljana, Slovenia
- Faculty of Mathematics and Physics, University of Ljubljana, SI-1000 Ljubljana, Slovenia
| | - W Leidemann
- Dipartimento di Fisica, Università di Trento, Via Sommarive 14, I-38123 Trento, Italy
- Instituto Nazionale di Fisica Nucleare, TIFPA, Via Sommarive 14, I-38123 Trento, Italy
| | - H Merkel
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - M Mihovilovič
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
- Jožef Stefan Institute, SI-1000 Ljubljana, Slovenia
| | - J Müller
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - U Müller
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - G Orlandini
- Dipartimento di Fisica, Università di Trento, Via Sommarive 14, I-38123 Trento, Italy
- Instituto Nazionale di Fisica Nucleare, TIFPA, Via Sommarive 14, I-38123 Trento, Italy
| | - J Pochodzalla
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - B S Schlimme
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - M Schoth
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - F Schulz
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - C Sfienti
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - S Širca
- Jožef Stefan Institute, SI-1000 Ljubljana, Slovenia
- Faculty of Mathematics and Physics, University of Ljubljana, SI-1000 Ljubljana, Slovenia
| | - R Spreckels
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - Y Stöttinger
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - M Thiel
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - A Tyukin
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - T Walcher
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - A Weber
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
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Van der Merwe B, Herrmann P, Jacobs K. Hericium ophelieae sp. nov., a novel species of Hericium (Basidiomycota: Russulales, Hericiaceae) from the Southern Afrotemperate forests of South Africa. Mycology 2023; 14:133-141. [PMID: 37152849 PMCID: PMC10161958 DOI: 10.1080/21501203.2023.2191636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023] Open
Abstract
A novel species of Hericium was recently collected in the Afrotemperate forests (Knysna - Amatole region) of Southern Africa. The novel species shares many similar, dentate features common to other species in Hericium, and its basidiome first appears stark white and yellows with age. However, the substrate choice and gloeocystidia and basidiospore sizes of the specimens collected were distinct from other Hericium species. This was confirmed by sequencing the ITS and 28S genetic markers, respectively. The novel species is described as Hericium ophelieae sp. nov. and appears unique as it grows on hardwoods indigenous to Southern Africa. The species has larger basidiospores and wider gloeocystidia compared to its closest relative. H. ophelieae sp. nov. is the first endemic species of the medicinal mushroom genus Hericium to be described from Southern Africa, and the second to be described from Africa, after its closest relative, H. bembedjaense, which was isolated in Cameroon. Although this is the first Hericium to be described from the Southern African region, there are likely others to be discovered, and this study highlights the need for further research into the fungal diversity of Afrotemperate environments.
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Radic M, Herrmann P, Haberland P, Riese CR. Development of a Business Model Resilience Framework for Managers and Strategic Decision-makers. Schmalenbach Z Betriebswirtsch Forsch 2022; 74:575-601. [PMID: 35880024 PMCID: PMC9301619 DOI: 10.1007/s41471-022-00135-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 06/22/2022] [Indexed: 12/27/2022]
Abstract
Following the massive impact of the Covid-19 pandemic on the global economy and on small and medium-sized enterprises (SMEs) in particular, the concept of resilience has experienced a renaissance. As an organizational concept, business model resilience describes the extent to which an organization can maintain or quickly recover its value proposition despite unexpected current or future disruptions (Palzkill-Vorbeck 2018). Although research has been conducted in this area for decades, there is still a lack of a unified framework that brings together the findings from research and links them to organizational practice. The paper addresses this gap by developing a framework for business model resilience and demonstrating its practical relevance for organizational performance during the Covid-19 pandemic in 2020. The framework includes 11 factors that characterize the resilience of an organization's business model. For managers and decision-makers, the framework is an opportunity to assess and improve the resilience of their organizations. For researchers, the framework is an important foundation for transferring the concept of business model resilience into organizational practice.
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Affiliation(s)
- M. Radic
- Fraunhofer IMW, Leipzig, Germany
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Stephani C, Herrmann P, Ritter CO, Lotz J, Saager L, Meissner K, Moerer O. Anatomic lung recruitment in the early phase of severe COVID-19-pneumonia. Pulmonology 2021; 27:345-347. [PMID: 33551267 PMCID: PMC7825885 DOI: 10.1016/j.pulmoe.2020.12.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 12/19/2020] [Accepted: 12/30/2020] [Indexed: 11/09/2022] Open
Affiliation(s)
- C Stephani
- Department for Anesthesiology, University Medical Center Göttingen, Robert-Koch-Strasse 40, 37075 Göttingen, Germany
| | - P Herrmann
- Department for Anesthesiology, University Medical Center Göttingen, Robert-Koch-Strasse 40, 37075 Göttingen, Germany
| | - C O Ritter
- Institute for Diagnostic and Interventional Radiology, University Medical Center Göttingen, Robert-Koch-Strasse 40, 37075 Göttingen, Germany
| | - J Lotz
- Institute for Diagnostic and Interventional Radiology, University Medical Center Göttingen, Robert-Koch-Strasse 40, 37075 Göttingen, Germany
| | - L Saager
- Department for Anesthesiology, University Medical Center Göttingen, Robert-Koch-Strasse 40, 37075 Göttingen, Germany
| | - K Meissner
- Department for Anesthesiology, University Medical Center Göttingen, Robert-Koch-Strasse 40, 37075 Göttingen, Germany
| | - O Moerer
- Department for Anesthesiology, University Medical Center Göttingen, Robert-Koch-Strasse 40, 37075 Göttingen, Germany.
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Germer CT, Herrmann P. Professor Dr. Dr. h.c. mult. Henning Dralle verabschiedet. Chirurg 2020. [DOI: 10.1007/s00104-020-01316-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Araos J, Staffieri F, Herrmann P. Lung aeration and volumes following recruitment maneuvers with three different airway pressures in healthy anesthetized and mechanically ventilated dogs: a pilot study. Vet Anaesth Analg 2020. [DOI: 10.1016/j.vaa.2020.07.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Dralle H, Herrmann P. [Julius Springer Prize for Surgery 2020]. Chirurg 2020; 91:481-482. [PMID: 32347314 DOI: 10.1007/s00104-020-01181-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- H Dralle
- Klinik für Allgemein‑, Viszeral- und Transplantationschirurgie, Sektion Endokrine Chirurgie, Medizinisches Zentrum, Universitätsklinikum Essen, Hufelandstr. 55, 45147, Essen, Deutschland.
| | - P Herrmann
- Springer Medizin Verlag GmbH, Heidelberg, Deutschland
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Herrmann P, Griebenow R. Erklärung zu finanziellen und nichtfinanziellen Interessen in CME-Fortbildungen von Springer Medizin. Internist (Berl) 2019; 60:709-710. [DOI: 10.1007/s00108-019-0619-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Herrmann P, Griebenow R. [Declaration of financial and non-financial interests in CME courses of Springer Medizin : Implementation of the regulation on the "Code on Continuing Medical Education" of the Medical Chamber North Rhine]. Oper Orthop Traumatol 2019; 31:165-166. [PMID: 31190242 DOI: 10.1007/s00064-019-0596-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Affiliation(s)
- P Herrmann
- Springer Medizin Verlag, Tiergartenstraße 17, 69121, Heidelberg, Deutschland.
| | - R Griebenow
- Ärztekammer Nordrhein, Düsseldorf, Deutschland
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Herrmann P, Griebenow R. Erklärung zu finanziellen und nichtfinanziellen Interessen in CME-Fortbildungen von Springer Medizin. Schmerz 2019. [DOI: 10.1007/s00482-019-0377-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Herrmann P, Griebenow R. Erklärung zu finanziellen und nichtfinanziellen Interessen in CME-Fortbildungen von Springer Medizin. Monatsschr Kinderheilkd 2019. [DOI: 10.1007/s00112-019-0687-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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13
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Herrmann P, Griebenow R. Erklärung zu finanziellen und nichtfinanziellen Interessen in CME-Fortbildungen von Springer Medizin. Z Herz- Thorax- Gefäßchir 2019. [DOI: 10.1007/s00398-019-0303-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Herrmann P, Griebenow R. Erklärung zu finanziellen und nichtfinanziellen Interessen in CME-Fortbildungen von Springer Medizin. Rechtsmedizin (Berl) 2019. [DOI: 10.1007/s00194-019-0315-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Herrmann P, Griebenow R. Erklärung zu finanziellen und nichtfinanziellen Interessen in CME-Fortbildungen von Springer Medizin. Z Gerontol Geriatr 2019. [DOI: 10.1007/s00391-019-01541-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Herrmann P, Griebenow R. Erklärung zu finanziellen und nichtfinanziellen Interessen in CME-Fortbildungen von Springer Medizin. Unfallchirurg 2019. [DOI: 10.1007/s00113-019-0637-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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17
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Herrmann P, Griebenow R. Erklärung zu finanziellen und nichtfinanziellen Interessen in CME-Fortbildungen von Springer Medizin. Z Rheumatol 2019; 78:213-214. [DOI: 10.1007/s00393-019-0615-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Herrmann P, Griebenow R. Erklärung zu finanziellen und nichtfinanziellen Interessen in CME-Fortbildungen von Springer Medizin. Notf Rett Med 2019. [DOI: 10.1007/s10049-019-0577-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Herrmann P, Griebenow R. Erklärung zu finanziellen und nichtfinanziellen Interessen in CME-Fortbildungen von Springer Medizin. Ophthalmologe 2019; 116:214-215. [DOI: 10.1007/s00347-019-0868-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Herrmann P, Griebenow R. Erklärung zu finanziellen und nichtfinanziellen Interessen in CME-Fortbildungen von Springer Medizin. Anaesthesist 2019; 68:177-178. [DOI: 10.1007/s00101-019-0545-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Herrmann P, Griebenow R. [Declaration of financial and non-financial interests in CME courses of Springer Medizin : Implementation of the regulation on the "Code on Continuing Medical Education" of the Medical Chamber North Rhine]. Orthopade 2019; 48:193-194. [PMID: 30788518 DOI: 10.1007/s00132-019-03706-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Affiliation(s)
- P Herrmann
- Springer Medizin Verlag, Tiergartenstraße 17, 69121, Heidelberg, Deutschland.
| | - R Griebenow
- Ärztekammer Nordrhein, Düsseldorf, Deutschland
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Wimberger P, Link T, Herrmann P, Kobelt D, Vassileva Y, Kerstin F, Kuhlmann J, Stein U. Clinical relevance of circulating MACC1 and S100A4 transcripts in serum of ovarian cancer patients. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy285.174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Birtel J, Gliem M, Holz FG, Herrmann P. Bildgebung und molekulargenetische Diagnostik zur Charakterisierung von Netzhautdystrophien. Ophthalmologe 2018; 115:1021-1027. [DOI: 10.1007/s00347-018-0779-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
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Hagemann C, Neuhaus N, Dahlmann M, Kessler AF, Kobelt D, Herrmann P, Eyrich M, Freitag B, Freitag B, Linsenmann T, Monoranu CM, Ernestus R, Löhr M, Stein U. P01.050 Circulating MACC1 transcript plasma levels in glioblastoma patients segregate together with prognostic markers and treatment response. Neuro Oncol 2018. [DOI: 10.1093/neuonc/noy139.092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- C Hagemann
- University of Würzburg, Department of Neurosurgery, Tumorbiology Laboratory, Würzburg, Germany
| | - N Neuhaus
- University of Würzburg, Department of Neurosurgery, Tumorbiology Laboratory, Würzburg, Germany
| | - M Dahlmann
- Experimental and Clinical Research Center, Charite Universitätsmedizin Berlin and Max-Delbrück-Center for Molecular Medicine in the Helmholtz-Association, Berlin, Germany
| | - A F Kessler
- University of Würzburg, Department of Neurosurgery, Tumorbiology Laboratory, Würzburg, Germany
| | - D Kobelt
- Experimental and Clinical Research Center, Charite Universitätsmedizin Berlin and Max-Delbrück-Center for Molecular Medicine in the Helmholtz-Association, Berlin, Germany
| | - P Herrmann
- Experimental and Clinical Research Center, Charite Universitätsmedizin Berlin and Max-Delbrück-Center for Molecular Medicine in the Helmholtz-Association, Berlin, Germany
| | - M Eyrich
- University of Würzburg, Department of Pediatric Hematology/Oncology, Würzburg, Germany
| | - B Freitag
- University of Würzburg, Department of Pediatric Hematology/Oncology, Würzburg, Germany
| | - B Freitag
- University of Würzburg, Department of Pediatric Hematology/Oncology, Würzburg, Germany
| | - T Linsenmann
- University of Würzburg, Department of Neurosurgery, Tumorbiology Laboratory, Würzburg, Germany
| | - C M Monoranu
- University of Würzburg, Department of Neuropathology, Würzburg, Germany
| | - R Ernestus
- University of Würzburg, Department of Neurosurgery, Tumorbiology Laboratory, Würzburg, Germany
| | - M Löhr
- University of Würzburg, Department of Neurosurgery, Tumorbiology Laboratory, Würzburg, Germany
| | - U Stein
- Experimental and Clinical Research Center, Charite Universitätsmedizin Berlin and Max-Delbrück-Center for Molecular Medicine in the Helmholtz-Association, Berlin, Germany
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Esser A, Thiel M, Achenbach P, Aulenbacher K, Baunack S, Beričič J, Bosnar D, Correa L, Dehn M, Distler MO, Fonvieille H, Friščić I, Gorchtein M, Heidrich S, Herrmann P, Hoek M, Kegel S, Kohl Y, Kolar T, Kreidel HJ, Maas FE, Merkel H, Mihovilovič M, Müller J, Müller U, Nillius F, Palatchi C, Paschke KD, Pochodzalla J, Schlimme BS, Schoth M, Schulz F, Širca S, Spruck B, Štajner S, Tioukine V, Tyukin A, Weber A, Sfienti C. First Measurement of the Q^{2} Dependence of the Beam-Normal Single Spin Asymmetry for Elastic Scattering off Carbon. Phys Rev Lett 2018; 121:022503. [PMID: 30085726 DOI: 10.1103/physrevlett.121.022503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 05/27/2018] [Indexed: 06/08/2023]
Abstract
We report on the first Q^{2}-dependent measurement of the beam-normal single spin asymmetry A_{n} in the elastic scattering of 570 MeV vertically polarized electrons off ^{12}C. We cover the Q^{2} range between 0.02 and 0.05 GeV^{2}/c^{2} and determine A_{n} at four different Q^{2} values. The experimental results are compared to a theoretical calculation that relates A_{n} to the imaginary part of the two-photon exchange amplitude. The result emphasizes that the Q^{2} behavior of A_{n} given by the ratio of the Compton to charge form factors cannot be treated independently of the target nucleus.
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Affiliation(s)
- A Esser
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - M Thiel
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - P Achenbach
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - K Aulenbacher
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - S Baunack
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - J Beričič
- Jožef Stefan Institute, SI-1000 Ljubljana, Slovenia
| | - D Bosnar
- Department of Physics, Faculty of Science, University of Zagreb, 10000 Zagreb, Croatia
| | - L Correa
- Clermont Université, Université Blaise Pascal, CNRS/IN2P3, LPC, BP 10448, F-63000 Clermont-Ferrand, France
| | - M Dehn
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - M O Distler
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - H Fonvieille
- Clermont Université, Université Blaise Pascal, CNRS/IN2P3, LPC, BP 10448, F-63000 Clermont-Ferrand, France
| | - I Friščić
- Department of Physics, Faculty of Science, University of Zagreb, 10000 Zagreb, Croatia
| | - M Gorchtein
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - S Heidrich
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - P Herrmann
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - M Hoek
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - S Kegel
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - Y Kohl
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - T Kolar
- Jožef Stefan Institute, SI-1000 Ljubljana, Slovenia
- Department of Physics, University of Ljubljana, SI-1000 Ljubljana, Slovenia
| | - H-J Kreidel
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - F E Maas
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - H Merkel
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - M Mihovilovič
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
- Jožef Stefan Institute, SI-1000 Ljubljana, Slovenia
| | - J Müller
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - U Müller
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - F Nillius
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - C Palatchi
- University of Virginia, Charlottesville, Virginia 22903, USA
| | - K D Paschke
- University of Virginia, Charlottesville, Virginia 22903, USA
| | - J Pochodzalla
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - B S Schlimme
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - M Schoth
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - F Schulz
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - S Širca
- Jožef Stefan Institute, SI-1000 Ljubljana, Slovenia
- Department of Physics, University of Ljubljana, SI-1000 Ljubljana, Slovenia
| | - B Spruck
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - S Štajner
- Jožef Stefan Institute, SI-1000 Ljubljana, Slovenia
| | - V Tioukine
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - A Tyukin
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - A Weber
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
| | - C Sfienti
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, D-55099 Mainz, Germany
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Stratmann V, Kretz M, Herrmann P. Zum Herausgeberwechsel bei Der Urologe. Urologe A 2018; 57:1-2. [DOI: 10.1007/s00120-017-0562-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Herrmann P, Ansari T, Southgate A, Varanou Jenkins A, Partington L, Carvalho C, Janes S, Lowdell M, Sibbons PD, Birchall MA. In vivo implantation of a tissue engineered stem cell seeded hemi-laryngeal replacement maintains airway, phonation, and swallowing in pigs. J Tissue Eng Regen Med 2017; 13:1943-1954. [PMID: 29048769 DOI: 10.1002/term.2596] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Revised: 08/15/2017] [Accepted: 10/09/2017] [Indexed: 01/27/2023]
Abstract
Laryngeal functional impairment relating to swallowing, vocalisation, and respiration can be life changing and devastating for patients. A tissue engineering approach to regenerating vocal folds would represent a significant advantage over current clinical practice. Porcine hemi-larynx were de-cellularised under negative pressure. The resultant acellular scaffold was seeded with human bone marrow derived mesenchymal stem cells and primary human epithelial cells. Seeded scaffolds were implanted orthotopically into a defect created in the thyroid cartilage in 8 pigs and monitored in vivo for 2 months. In vivo assessments consisted of mucosal brushing and bronchoscopy at 1, 2, 4, and 8 weeks post implantation followed by histological evaluation post termination. The implanted graft had no adverse effect on respiratory function in 6 of the 8 pigs; none of the pigs had problems with swallowing or vocalisation. Six out of the 8 animals survived to the planned termination date; 2 animals were terminated due to mild stenosis and deep tissue abscess formation, respectively. Human epithelial cells from mucosal brushings could only be identified at Weeks 1 and 4. The explanted tissue showed complete epithelialisation of the mucosal surface and the development of rudimentary vocal folds. However, there was no evidence of cartilage remodelling at the relatively early censor point. Single stage partial laryngeal replacement is a safe surgical procedure. Replacement with a tissue engineered laryngeal graft as a single procedure is surgically feasible and results in appropriate mucosal coverage and rudimentary vocal fold development.
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Affiliation(s)
- P Herrmann
- NPIMR, Harrow, UK.,UCL Ear Institute, Royal National Throat Nose and Ear Hospital, London, UK
| | | | | | - A Varanou Jenkins
- Department Lungs for Living Research Centre, Division of Medicine, Rayne Building, University College London, London, UK
| | - L Partington
- Department of Haematology, University College London, London, UK
| | - C Carvalho
- Department of Haematology, University College London, London, UK
| | - S Janes
- Department Lungs for Living Research Centre, Division of Medicine, Rayne Building, University College London, London, UK
| | - M Lowdell
- Department of Haematology, University College London, London, UK
| | | | - M A Birchall
- UCL Ear Institute, Royal National Throat Nose and Ear Hospital, London, UK
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Herrmann P, Waydhas C, Wrede C, Böttiger BW. Zwanzig Jahre Notfall + Rettungsmedizin. Notf Rett Med 2017. [DOI: 10.1007/s10049-017-0369-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Rohr UP, Herrmann P, Ilm K, Zhang H, Lohmann S, Reiser A, Muranyi A, Smith J, Burock S, Osterland M, Leith K, Singh S, Brunhoeber P, Bowermaster R, Tie J, Christie M, Wong HL, Waring P, Shanmugam K, Gibbs P, Stein U. Prognostic value of MACC1 and proficient mismatch repair status for recurrence risk prediction in stage II colon cancer patients: the BIOGRID studies. Ann Oncol 2017; 28:1869-1875. [DOI: 10.1093/annonc/mdx207] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023] Open
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Geiseler G, Herrmann P, Reps KH, Wüstner R. Über die Hydrolyse- und Deuterolysegeschwindigkeit niedermolekularer Alkansulfochloride. Z PHYS CHEM 2017. [DOI: 10.1515/zpch-1962-22117] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Herrmann P, Arnold Κ, Klose G. Untersuchung von zeitabhängigen Prozessen und Sättigungserscheinungen in einem AB-Spektrum bei intramolekularem chemischen Austausch mit Hilfe eines Analogcomputers. Z PHYS CHEM 2017. [DOI: 10.1515/zpch-1973-25328] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Schnetzke M, Aytac S, Herrmann P, Wölfl C, Grützner PA, Heppert V, Guehring T. [Postoperative implant-associated osteomyelitis of the shoulder: Hardware-retaining revision concept using temporary drainage]. Unfallchirurg 2016; 118:520-6. [PMID: 24127077 DOI: 10.1007/s00113-013-2520-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
BACKGROUND Posttraumatic and postoperative osteomyelitis (PPO) is a subgroup of bone infections with increasing importance. However, to date no standardized reoperation concept exists particularly for patients with PPO of the shoulder region. Therefore the purpose of this study was to evaluate a revision concept including débridement, irrigation, and insertion of temporary drainage with hardware retention until healing. PATIENTS AND METHODS A total of 31 patients with PPO were included with a proximal humerus fracture (n = 14), clavicle fracture (n = 10), or AC-joint separation (n = 7). In all, 27 of these patients could be followed for > 1 year. RESULTS Hardware retention until fracture or ligament healing could be achieved in > 83%. Six patients required follow-up débridement due to recurrent infections, but then were unremarkable. Clinical outcome showed excellent Constant scores (91.6 ± 2.8). CONCLUSION A cost-efficient, simple, and successful revision concept for patients with PPO of the shoulder region is described.
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Affiliation(s)
- M Schnetzke
- Klinik für Unfallchirurgie und Orthopädie, BG Unfallklinik Ludwigshafen, Ludwig-Guttmann-Straße 13, 67071, Ludwigshafen, Deutschland
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Herrmann P, Günay H. Integration der zahnärztlichen Gesundheitsfrühförderung in die Frühe Hilfe – Erfahrungen und Ergebnisse aus dem Modellprojekt Pro Kind. Gesundheitswesen 2016. [DOI: 10.1055/s-0036-1578847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Moerer O, Harnisch LO, Herrmann P, Zippel C, Quintel M. Patient-Ventilator Interaction During Noninvasive Ventilation in Simulated COPD. Respir Care 2015; 61:15-22. [DOI: 10.4187/respcare.04141] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Abstract
OBJECTIVE Treatment of late and chronic infections, which require the replacement of all the infected implant material. INDICATIONS All infections lasting more than 4 weeks that have been proven to be bacterial and/or obvious signs of infection. CONTRAINDICATIONS Unsuitable for anesthesia, high acute infection with sepsis and risk for bacteremia with danger to life, large soft tissue damage where plastic surgery coverage is not possible. SURGICAL TECHNIQUE Arthrotomy, synovectomy, removal of all foreign bodies including all residue of polymethylmethacrylate (PMMA), jet lavage, spacer, drainage, wound closure or temporary closure using vacuum sealing. POSTOPERATIVE MANAGEMENT Bed rest with a leg brace and drainage until daily drainage volume is <50 ml, then mobilization with no weight-bearing in an orthesis, 4 weeks systemic antibiotics, after 2 weeks without antibiotics aspiration of the joint, when no bacteria are found reimplantation of a revision TKA (total knee arthroplasty) and with plastic surgery for coverage (gastrognemius flap) if necessary, when bacteria are found again revision with exchange of the spacer. RESULTS In the literature, the success rate for both the one-stage or the two-stage procedure is about 80-95%. In our very nonhomogeneous collective the overall rate of success is about 81%.
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Affiliation(s)
- P Herrmann
- Abteilung Unfall-, Wirbelsäulen- und Gelenkchirurgie, Asklepios-Südpfalzklinik Kandel, Luitpoldstr. 14, 76870 Kandel, Germany.
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Krohne TU, Herrmann P, Kopitz J, Rüther K, Holz FG. [Juvenile neuronal ceroid lipofuscinosis. Ophthalmologic findings and differential diagnosis]. Ophthalmologe 2010; 107:606-11. [PMID: 20454901 DOI: 10.1007/s00347-009-2106-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Neuronal ceroid lipofuscinoses (NCL) are a heterogeneous group of neurodegenerative diseases with mostly autosomal recessive inheritance whose common feature is the intralysosomal accumulation of ceroid lipofuscin. With varying manifestation ages the diseases result in cognitive and motor deterioration, epilepsy, diffuse retinal degeneration, and eventually death. Juvenile ceroid lipofuscinosis (JNCL, CLN3, Batten disease) has the distinctive feature that the ophthalmologic symptoms precede the neurologic symptoms by several years, and thus the ophthalmologist plays a central role in early diagnosis. Important clinical signs of JNCL include bull's eye maculopathy, severely reduced Ganzfeld ERG already at initial presentation, and unusually rapid progression of the functional decline. If JNCL is clinically suspected the diagnosis can be made by means of a standard blood smear and confirmed by genetic detection of the mutation. Although causal therapeutic options are currently only in the developmental stage, early diagnosis by the ophthalmologist is of utmost importance to allow for medical and educational support of the affected child and for adequate counseling of the parents.
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Affiliation(s)
- T U Krohne
- Department of Cell Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.
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Stein U, Burock S, Herrmann P, Wendler I, Niederstrasser M, Wernecke K, Schlag P. 13LBA S100A4 transcripts in blood of colon, rectal, and gastric cancer patients: development of a new blood-based assay for improved diagnosis and prognosis. EJC Suppl 2009. [DOI: 10.1016/s1359-6349(09)72048-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Raupach T, Bahr F, Herrmann P, Lüthje L, Andreas S. Erhöhung der Atemarbeit bei COPD ist nicht mit einer Zunahme der Sympathikus-Aktivität assoziiert. Pneumologie 2008. [DOI: 10.1055/s-2008-1074408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Abstract
Neurohumoral activation has been shown to be present in hypoxic patients with chronic obstructive pulmonary disease (COPD). The aims of the present study were to investigate whether there is sympathetic activation in COPD patients in the absence of hypoxia and whether slow breathing has an impact on sympathoexcitation and baroreflex sensitivity. Efferent muscle sympathetic nerve activity, blood pressure, cardiac frequency and respiratory movements were continuously measured in 15 COPD patients and 15 healthy control subjects. Baroreflex sensitivity was analysed by autoregressive spectral analysis and the alpha-angle method. At baseline, sympathetic nerve activity was significantly elevated in COPD patients and baroreflex sensitivity was decreased (5.0+/-0.6 versus 8.9+/-0.8 ms.mmHg(-1)). Breathing at a rate of 6 breaths.min(-1) caused sympathetic activity to drop significantly in COPD patients (from 61.3+/-4.6 to 53.0+/-4.3 bursts per 100 heartbeats) but not in control subjects (39.2+/-3.2 versus 37.5+/-3.3 bursts per 100 heartbeats). In both groups, slow breathing significantly enhanced baroreflex sensitivity. In conclusion, sympathovagal imbalance is present in normoxic chronic obstructive pulmonary disease patients. The possibility of modifying these changes by slow breathing may help to better understand and influence this systemic disease.
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Affiliation(s)
- T Raupach
- Dept of Cardiology and Pneumology, Georg-August University Göttingen, Göttingen, Germany
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Bruns CJ, Herrmann P, Huber S, Tischer A, Hesler CV, Luckner M, Jauch KW, Heeschen C. Identifikation und Charakterisierung von hoch-metastatischen und therapie-resistenten Tumorstammzellen beim Pankreaskarzinom. Z Gastroenterol 2007. [DOI: 10.1055/s-2007-992760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Raupach T, Bahr F, Herrmann P, Lüthje L, Hasenfuß G, Andreas S. Atemfrequenz-Reduktion senkt die sympathische Aktivität von COPD-Patienten. Pneumologie 2007. [DOI: 10.1055/s-2007-973398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Diehm N, Baumgartner I, Silvestro A, Herrmann P, Triller J, Schmidli J, Do DD, Dinkel HP. Automated software supported versus manual aorto-iliac diameter measurements in CT angiography of patients with abdominal aortic aneurysms: Assessment of inter- and intraobserver variation. VASA 2005; 34:255-61. [PMID: 16363281 DOI: 10.1024/0301-1526.34.4.255] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Background: Open surgical or endovascular abdominal aortic aneurysm (AAA) relies on precise preprocedual imaging. Purpose of this study was to assess inter- and intraobserver variation of software-supported automated and manual multi row detector CT angiography (MDCTA) in aortoiliac diameter measurements before AAA repair. Patients and methods: Thirty original MDCTA data sets (4 times 2mm collimation) of patients scheduled for endovascular AAA repair were studied on a dedicated software capable of creating two-dimensional reformatted planes orthogonal to the aortoiliac center-line. Measurements were performed twice with a four-week interval between readings. Data were analysed by two blinded readers at random order. Two different measurement methods were performed: reader-assisted freehand wall-to-wall measurement and semi-automatic measurement. Results: Aortoiliac diameters were significantly underestimated by the semi-automatic method as compared to reader-assisted measurements (p < 0.0031). Intraobserver variability of AAA diameter calculation was not significant (p > 0.15) for reader-assisted measurements except for the diameter of the left common iliac artery in reader 2 (p = 0.0045) and it was not significant (p > 0.14) using the semi-automatic method. Interobserver variability was not significant for AAA diameter measurements using the reader-assisted method and for proximal neck analysis with the semi-automatic method (p > 0.27). Relevant interobserver variation was observed for semi-automatic measurement of maximum AAA (p = 0.0007) and iliac artery diameters (p = 0.024). Conclusions: Dedicated MDCTA software provides a useful tool to minimize aortoiliac diameter measurement variation and to improve imaging precision before AAA repair. For reliable AAA diameter analysis the reader-assisted freehand measurement method is recommended to be applied to a set of reformatted CT data as provided by the software used in this study.
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Affiliation(s)
- N Diehm
- Swiss Cardiovascular Center, Divisions of Angiology, Inselspital, University Hospital, Bern, Switzerland.
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Tischendorf JJ, Crede S, Herrmann P, Bach N, Bömeke C, Manns MP, Schaefer O, Trautwein C. Diagnosenverschlüsselung durch Medizinische Dokumentationsassistentin oder Stationsarzt. Dtsch Med Wochenschr 2004; 129:1731-5. [PMID: 15295683 DOI: 10.1055/s-2004-829024] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
BACKGROUND AND OBJECTIVE Starting in 2004 the patient budget in Germany will be calculated according to the Diagnosis Related Group (DRG) system, by which system the monetary reward of a unit will be directly related to the quality of documentation e. g. diagnosis and procedures. The aim of this study was to compare the quality of documentation by a medical documentation assistant (MDA) with the usual practice of documentation by the ward physician (WP). Additionally, the effect of introducing a completely changed organizational process was tested. METHODS In a prospective study on the ward of a gastroenterology unit two different approaches of medical documentation were compared. In a first six-month period diagnosis and procedures were encoded by WP. In the following six months an MDA was introduced and involved in the encoding process. RESULTS In the first six months 221 patients (mean age 55 +/- 16,2 years, 55,7 % males) were evaluated, whereas in the following six months 305 patients (mean age 53 +/- 15,4 years, 59,9 % males) were included. The introduction of an MDA improved medical documentation and economical reference numbers: with an increase of diagnosis per case to 7,43 (in first six months 5,53), patient complexity and comorbidity level (PCCL) to 2,5 (in first six months 2,13), case-mix index to 1,04 (in first six months 0,98). Additionally the medial hospitalization time decreased from 11,2 to 8,1 days. The average daily reimbursement increased in the MDA group from 423 Euro to 603 Euro. This was calculated on the basis of a basic case factor of 2900 Euro. CONCLUSION Introduction of an MDA in a gastroenterology ward increases the quality of documentation and results in an improved presentation of DRG-relevant efforts with a better reimbursement of medical costs.
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Affiliation(s)
- J J Tischendorf
- Abteilung für Gastroenterologie, Hepatologie und Endokrinologie, Medizinische Hochschule Hannover
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Roth H, Luecke T, Deventer B, Joachim A, Herrmann P, Quintel M. Pulmonary gas distribution during ventilation with different inspiratory flow patterns in experimental lung injury -- a computed tomography study. Acta Anaesthesiol Scand 2004; 48:851-61. [PMID: 15242429 DOI: 10.1111/j.1399-6576.2004.00430.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND There is still controversy about the optimal inspiratory flow pattern for ventilation of patients with acute lung injury. The aim of this study was to compare the effects of pressure-controlled ventilation (PCV) with a decelerating inspiratory flow with volume-controlled ventilation (VCV) with constant inspiratory flow on pulmonary gas distribution (PGD) in experimentally induced ARDS. METHODS Sixteen adult sheep were randomized to be ventilated with PCV or VCV after surfactant depletion by repeated bronchoalveolar lavage. Positive end-expiratory pressure (PEEP) was increased in a stepwise manner from zero end-expiratory pressure (ZEEP) to 7, 14 and 21 cm H(2)O in hourly intervals. Respiratory rate, inspiration-to-expiration ratio and tidal volume were kept constant. Central hemodynamics, gas exchange and airway pressures were measured. Electron beam computed tomographic (EBCT) scans of the entire lungs were performed at baseline (preinjury) and each level of end-expiratory pressure during an inspiratory and expiratory hold maneuver. The lungs were three-dimensionally reconstructed and volumetric assessments were made separating the lungs into four subvolumes classified as overinflated, normally aerated, poorly aerated and nonaerated. RESULTS Pressure-controlled ventilation led to a decrease in peak airway pressure and an increase in mean airway pressure. No differences between groups were found regarding plateau pressures, hemodynamics and gas exchange. Recruitment, defined as a decrease in expiratory lung volume classified as nonaerated, was similar in both groups and predominantly associated with PEEP. Overinflated lung volumes were increased with PCV. CONCLUSIONS In this model of acute lung injury, ventilation with decelerating inspiratory flow had no beneficial effects on PGD when compared with ventilation with constant inspiratory flow, while the increase in overinflated lung volumes may raise concerns regarding potential ventilator-associated lung injury.
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Affiliation(s)
- H Roth
- Department of Anesthesiology and Critical Care, University Hospital of Mannheim, Faculty of Clinical Medicine, University of Heidelberg, Heidelberg, Germany
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Luecke T, Roth H, Joachim A, Herrmann P, Deventer B, Weisser G, Pelosi P, Quintel M. Effects of end-inspiratory and end-expiratory pressures on alveolar recruitment and derecruitment in saline-washout-induced lung injury -- a computed tomography study. Acta Anaesthesiol Scand 2004; 48:82-92. [PMID: 14674978 DOI: 10.1111/j.1399-6576.2004.00265.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
BACKGROUND Lung protective ventilation using low end-inspiratory pressures and tidal volumes (VT) has been shown to impair alveolar recruitment and to promote derecruitment in acute lung injury. The aim of the present study was to compare the effects of two different end-inspiratory pressure levels on alveolar recruitment, alveolar derecruitment and potential overdistention at incremental levels of positive end-expiratory pressure. METHODS Sixteen adult sheep were randomized to be ventilated with a peak inspiratory pressure of either 35 cm H2O (P35, low VT) or 45 cm H2O (P45, high VT) after saline washout-induced lung injury. Positive end-expiratory pressure (PEEP) was increased in a stepwise manner from zero (ZEEP) to 7, 14 and 21 cm of H2O in hourly intervals. Tidal volume, initially set to 12 ml kg(-1), was reduced according to the pressure limits. Computed tomographic scans during end-expiratory and end-inspiratory hold were performed along with hemodynamic and respiratory measurements at each level of PEEP. RESULTS Tidal volumes for the two groups (P35/P45) were: 7.7 +/- 0.9/11.2 +/- 1.3 ml kg(-1) (ZEEP), 7.9 +/- 2.1/11.3 +/- 1.3 ml kg(-1) (PEEP 7 cm H2O), 8.3 +/- 2.5/11.6 +/- 1.4 ml kg(-1) (PEEP 14 cm H2O) and 6.5 +/- 1.7/11.0 +/- 1.6 ml kg(-1) (PEEP 21 cm H2O); P < 0.001 for differences between the two groups. Absolute nonaerated lung volumes during end-expiration and end-inspiration showed no difference between the two groups for given levels of PEEP, while tidal-induced changes in nonaerated lung volume (termed cyclic alveolar instability, CAI) were larger in the P45 group at low levels of PEEP. The decrease in nonaerated lung volume was significant for PEEP 14 and 21 cm H2O in both groups compared with ZEEP (P < 0.005). Over-inflated lung volumes, although small, were significantly higher in the P45 group. Significant respiratory acidosis was noted in the P35 group despite increases in the respiratory rate. CONCLUSION Limiting peak inspiratory pressure and VT does not impair alveolar recruitment or promote derecruitment when using sufficient levels of PEEP.
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Affiliation(s)
- T Luecke
- Department of Anesthesiology and Intensive Care, University Hospital of Mannheim, Faculty of Clinical Medicine, University of Heidelberg, Germany
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Chaignon V, Sanchez-Neira I, Herrmann P, Jaillard B, Hinsinger P. Copper bioavailability and extractability as related to chemical properties of contaminated soils from a vine-growing area. Environ Pollut 2003; 123:229-238. [PMID: 12628202 DOI: 10.1016/s0269-7491(02)00374-3] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Vineyard soils have been contaminated by Cu as a consequence of the long-term use of Cu salts as fungicides against mildew. This work aimed at identifying which soil parameters were the best related to Cu bioavailability, as assessed by measuring the concentrations of Cu in shoots and roots of tomato cropped (in lab conditions) over a range of 29 (24 calcareous and five acidic) Cu-contaminated topsoils from a vine-growing area (22-398 mg Cu kg(-1)). Copper concentrations in tomato shoots remained in the adequate range and were independent of soil properties and soil Cu content. Conversely, strong, positive correlations were found between root Cu concentration, total soil Cu, EDTA- or K-pyrophosphate-extractable Cu and organic C contents in the 24 calcareous soils, suggesting a prominent role of organic matter in the retention and bioavailability of Cu. Such relations were not observed when including the five acidic soils in the investigated population, suggesting a major pH effect. Root Cu concentration appeared as a much more sensitive indicator of soil Cu bioavailability than shoot Cu concentration. Simple extractions routinely used in soil testing procedures (total and EDTA-extractable Cu) were adequate indicators of Cu bioavailability for the investigated calcareous soils, but not when different soil types were considered (e.g. acidic versus calcareous soils).
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Affiliation(s)
- V Chaignon
- Institut National de la Recherche Agronomique (INRA), UMR Sol & Environnement, Place Viala, F-34060 Montpellier Cedex 1, France
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Wieland E, Herrmann P. Module zur zertifizierten Fort- und Weiterbildung in den Springer-Facharztzeitschriften. Urologe A 2001. [DOI: 10.1007/s001200170029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Glugla M, Perevezentsev A, Niyongabo D, Penzhorn RD, Bell A, Herrmann P. A Permcat reactor for impurity processing in the JET Active Gas Handling System. Fusion Engineering and Design 2000. [DOI: 10.1016/s0920-3796(00)00209-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Abstract
Mechanical ventilation is the mainstay of therapy for acute lung injury, a disease with remainingly high morbidity and mortality. As a result of an improved understanding that mechanical ventilation itself can contribute to and aggravate the disease process, the term ventilator-associated lung injury (VALI) has been introduced. Main risk factor for VALI are (1) alveolar overdistention caused by excessivly high tidal volumes and/or inspiratory pressures (volu-/barotrauma), as well as (2) cyclic alveolar collapse promoted by insufficient endexpiratory pressure. So called "lung-protective ventilatory strategies" aim at minimizing these risk factors by the use of small tidal volumes and high PEEP levels. High frequency oscillatory ventilation (HFOV) can be regarded as an ultimate form of this approach, combining minimal pressure changes with a high continuous distending pressure (CDP). That CDP is generated using high fresh gas flows ("Super-CPAP"), while a piston pump incorporated into the system creates an oscillatory flow at frequencies ranging from 3-7 Hz. An initial lung volume recruitment manoeuvre is mandatory for the optimal use of HFOV. Whereas for many years HFOV is a well established therapy for the infant respiratory distress syndrome, experience in adults is still rare. First results, however, look promising, and HFOV might as well turn out as a valuable treatment modalitiy for ARDS.
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Affiliation(s)
- T Luecke
- Institut für Anästhesiologie und Operative Intensivmedizin, Universitätsklinikum Mannheim gGmbH, Theodor-Kutzer-Ufer, 68167 Mannhelm.
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