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  1. Article ; Online: Optimizing the Gut Microbiota for Individualized Performance Development in Elite Athletes

    Svenja Nolte / Karsten Krüger / Claudia Lenz / Karen Zentgraf

    Biology, Vol 12, Iss 12, p

    2023  Volume 1491

    Abstract: The human gut microbiota can be compared to a fingerprint due to its uniqueness, hosting trillions of living organisms. Taking a sport-centric perspective, the gut microbiota might represent a physiological system that relates to health aspects as well ... ...

    Abstract The human gut microbiota can be compared to a fingerprint due to its uniqueness, hosting trillions of living organisms. Taking a sport-centric perspective, the gut microbiota might represent a physiological system that relates to health aspects as well as individualized performance in athletes. The athletes’ physiology has adapted to their exceptional lifestyle over the years, including the diversity and taxonomy of the microbiota. The gut microbiota is influenced by several physiological parameters and requires a highly individual and complex approach to unravel the linkage between performance and the microbial community. This approach has been taken in this review, highlighting the functions that the microbial community performs in sports, naming gut-centered targets, and aiming for both a healthy and sustainable athlete and performance development. With this article, we try to consider whether initiating a microbiota analysis is practicable and could add value in elite sport, and what possibilities it holds when influenced through a variety of interventions. The aim is to support enabling a well-rounded and sustainable athlete and establish a new methodology in elite sport.
    Keywords human gut microbiota ; performance ; elite sport ; exercise metabolism ; individualization ; Biology (General) ; QH301-705.5
    Subject code 796
    Language English
    Publishing date 2023-12-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: "Orte, an denen man wachsen kann" – Empirische Rekonstruktionen von Sinnzuschreibungen im Zusammenhang mit der Eröffnung zweier norwegischer Gedenkstätten

    Claudia Lenz / Peter Schröder

    Forum: Qualitative Social Research, Vol 19, Iss

    2018  Volume 3

    Abstract: Der vorliegende Artikel ist das Resultat eines kleinen interdisziplinären Projekts zu Geschichtsbewusstsein, in dem wir Verfahren und Denkweisen von "Memory Research" – selbst ein interdisziplinäres Unterfangen – und Gesprächsforschung als linguistische ... ...

    Abstract Der vorliegende Artikel ist das Resultat eines kleinen interdisziplinären Projekts zu Geschichtsbewusstsein, in dem wir Verfahren und Denkweisen von "Memory Research" – selbst ein interdisziplinäres Unterfangen – und Gesprächsforschung als linguistische und soziologische Disziplin kombiniert haben. Basis für die empirische Arbeit waren Interviews mit BesucherInnen der Eröffnungszeremonien für das Center for Studies of Holocaust and Religious Minorities (HL-Zentrum) in Oslo und das Falstad-Zentrum nördlich von Trondheim, Gedenkstätte eines ehemaligen SS-Strafgefangenenlagers und Menschenrechtszentrum. Der Artikel ist gleichzeitig ein programmatischer Versuch zu zeigen, dass Geschichtsbewusstsein am verlässlichsten in der Rekonstruktion von konkreter sprachlicher Interaktion zugänglich wird. Im ersten Teil des Artikels beleuchten wir die öffentliche Erinnerungskultur im Zusammenhang mit dem Holocaust und der deutschen Besatzung in Norwegen und reflektieren über die Funktion von Erinnerungsstätten. Dieser Teil bildet den Rahmen für die folgenden mikroanalytischen Rekonstruktionen zweier Gesprächsausschnitte, in denen wir die Brechungen zwischen offizieller Erinnerungskultur und privaten Sinngebungsprozessen und Orientierungsbedürfnissen sichtbar machen.
    Keywords Erinnerungskultur ; Erinnerungspolitik ; Geschichtsbe­wusstsein ; inter­kulturelle Kom­munikation ; Ge­sprächsanalyse ; Konversations­analyse ; soziale Interaktion ; Positionierung im Gespräch ; Umgang mit Kooperation im Gespräch ; Umgang mit Identität ; Interview ; Social sciences (General) ; H1-99
    Subject code 900
    Language German
    Publishing date 2018-09-01T00:00:00Z
    Publisher FQS
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article ; Online: Inscripciones-rescripciones-suprascripciones

    Claudia Lenz

    Estudios Sociológicos, Vol 24, Iss

    lecturas de los relatos de la resistencia de una mujer noruega

    2006  Volume 71

    Keywords Guerra mundial ; 1939-1945 ; Causas ; Noruega ; Narraciones personales ; Børsum ; Social Sciences ; H ; Sociology (General) ; HM401-1281
    Language Spanish
    Publishing date 2006-01-01T00:00:00Z
    Publisher Colegio de México
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article ; Online: Determination of time of death by blinded post-mortem interrogation of cardiac implantable electrical devices

    Korbinian Lackermair / Florian Fischer / Johannes Manhart / Eva Scheurer / Matthias Graw / Diana Boy / Claudia Lenz / Bonnie Hartrampf / Antonia Kellnar / Lauren Sams / Heidi Estner / Stephanie Fichtner

    Scientific Reports, Vol 12, Iss 1, Pp 1-

    2022  Volume 6

    Abstract: Abstract Postmortal interrogation of cardiac implantable electrical devices (CIED) may contribute to the determination of time of death in forensic medicine. Recent studies aimed to improve estimation of time of death by combining findings from autopsy, ... ...

    Abstract Abstract Postmortal interrogation of cardiac implantable electrical devices (CIED) may contribute to the determination of time of death in forensic medicine. Recent studies aimed to improve estimation of time of death by combining findings from autopsy, CIED interrogation and patients´ medical history. CIED from deceased undergoing forensic autopsy were included, if time of death remained unclear after forensic assessment. CIED explanted from deceased with known time of death were analysed as a control cohort. CIED were sent to our device interrogation lab and underwent analysis blinded for autopsy findings, medical history and police reports. The accuracy of time of death determination and the accuracy of time of death in the control cohort served as primary outcome. A total of 87 CIED were analysed. The determination of time of death was possible in 54 CIED (62%, CI 52–72%). The accuracy of the estimated time of death was 92.3% in the control cohort. Certain CIED type and manufacturers were associated with more successful determination. Blinded postmortal analysis enables a valid determination of the time of death in the majority of CIED. Analysis of explanted CIED in a cardiological core lab is feasible and should be implemented in forensic medicine.
    Keywords Medicine ; R ; Science ; Q
    Subject code 610
    Language English
    Publishing date 2022-05-01T00:00:00Z
    Publisher Nature Portfolio
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article ; Online: Changes in Cell Wall Dimensions during the Different Stages of Furfuryl Alcohol Modification

    Nadine Herold / Claudia Lenz / Alexander Pfriem

    BioResources, Vol 9, Iss 3, Pp 4756-

    2014  Volume 4763

    Abstract: Furfuryl alcohol modification of wood is a well-known process for wood property enhancement. The present project focuses on veneer molding for high-value applications using the plasticizing effect of furfuryl alcohol. Adding maleic anhydride to furfuryl ... ...

    Abstract Furfuryl alcohol modification of wood is a well-known process for wood property enhancement. The present project focuses on veneer molding for high-value applications using the plasticizing effect of furfuryl alcohol. Adding maleic anhydride to furfuryl alcohol leads to an acid-catalyzed polymerization of furfuryl alcohol at elevated temperatures, fixing the shape of the veneer. In contrast to water or water vapor treatment, furfuryl alcohol-modified cell walls face a lower degree of shrinkage due to the polymer formation and possibly experience less drying-induced cracks. Earlier studies show a distinct influence of maleic anhydride on the curing of furfuryl alcohol. To determine the impact of different maleic anhydride contents on the polymer formation and the corresponding shrinkage of wood cell walls, microscopic studies were carried out on various maple microtome sections (Acer sp.), i.e., when dry, water-impregnated, after furfuryl alcohol impregnation, and after curing at elevated temperatures. At each state, the cell walls of 30 appointed early wood cells were determined by cell wall area measurements. The lowest shrinkage of impregnated samples was realized by using 10 wt% maleic anhydride in the impregnation solution and after 48 h soaking. Here, cell wall shrinkage could be reduced by approx. 42.6% compared to water-impregnation.
    Keywords Furfuryl alcohol modification ; Maleic anhydride content ; Microscopy ; Plasticization ; Shrinkage ; Wood cell wall ; Chemistry ; QD1-999 ; Science ; Q
    Language English
    Publishing date 2014-06-01T00:00:00Z
    Publisher North Carolina State University
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  6. Article: Identification of deceased based on sternal bone computed tomography features

    Weiss, Geraldine / Holger Wittig / Eva Scheurer / Rahel Ruprecht / Claudia Lenz

    Forensic science international. 2018 May, v. 286

    2018  

    Abstract: Identification of deceased with unclear identity is a common problem in forensic science, whereby radiologic comparison can be applied as method for identification. As this comparison is mostly made on a visual basis, it is highly dependent on the ... ...

    Abstract Identification of deceased with unclear identity is a common problem in forensic science, whereby radiologic comparison can be applied as method for identification. As this comparison is mostly made on a visual basis, it is highly dependent on the examiner and often lacks standardized procedures and statistical support. The aim of this study therefore was to develop a reproducible and examiner independent method for radiologic identification (RADid) based on morphometric and morphological features of sternal bone computed tomography (CT). Furthermore, the feasibility of an automated comparison of a post-mortem (PM) case against a database of ante-mortem (AM) cases was evaluated.44 in situ PM CT scans of sternal bone and their corresponding AM CT scans were analysed and reproducible features were selected based on intra- and interrater reliability assessments. The selected features were further tested by contrasting AM and PM data. Moreover, an automated identity evaluation was developed by calculating the number of matching features between each PM case and an AM database consisting of 94 cases including the 44 with corresponding PM scans.Several features showed to be reliable according to their resulting correlation coefficient values (greater or equal to 0.60). The suitability and stability of these features was confirmed by contrasting AM and PM CT scans. Finally, the automated comparison was successful in 76.7% of the cases, whereby an unambiguous identification was possible in 65.1%.The present study reflects the benefits of a standardized and statistically established identification method and demonstrates the high potential of the sternal bone as a suitable structure for RADid.
    Keywords computed tomography ; correlation ; databases ; forensic sciences ; morphometry
    Language English
    Dates of publication 2018-05
    Size p. 233-238.
    Publishing place Elsevier B.V.
    Document type Article
    ZDB-ID 424042-x
    ISSN 1872-6283 ; 0379-0738
    ISSN (online) 1872-6283
    ISSN 0379-0738
    DOI 10.1016/j.forsciint.2018.03.018
    Database NAL-Catalogue (AGRICOLA)

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  7. Article ; Online: Hippocampal volume correlates with attenuated negative psychotic symptoms irrespective of antidepressant medication

    Raffaele Bernasconi / Renata Smieskova / André Schmidt / Fabienne Harrisberger / Nora Maria Raschle / Claudia Lenz / Anna Walter / Andor Simon / Anita Riecher-Rössler / Ernst-Wilhelm Radue / Undine E. Lang / Paolo Fusar-Poli / Stefan J. Borgwardt

    NeuroImage: Clinical, Vol 8, Iss C, Pp 230-

    2015  Volume 237

    Abstract: Background: Individuals with at-risk mental state for psychosis (ARMS) often suffer from depressive and anxiety symptoms, which are clinically similar to the negative symptomatology described for psychosis. Thus, many ARMS individuals are already being ... ...

    Abstract Background: Individuals with at-risk mental state for psychosis (ARMS) often suffer from depressive and anxiety symptoms, which are clinically similar to the negative symptomatology described for psychosis. Thus, many ARMS individuals are already being treated with antidepressant medication. Objectives: To investigate clinical and structural differences between psychosis high-risk individuals with or without antidepressants. Methods: We compared ARMS individuals currently receiving antidepressants (ARMS-AD; n = 18), ARMS individuals not receiving antidepressants (ARMS-nonAD; n = 31) and healthy subjects (HC; n = 24), in terms of brain structure abnormalities, using voxel-based morphometry. We also performed region of interest analysis for the hippocampus, anterior cingulate cortex, amygdala and precuneus. Results: The ARMS-AD had higher ‘depression’ and lower ‘motor hyperactivity’ scores than the ARMS-nonAD. Compared to HC, there was significantly less GMV in the middle frontal gyrus in the whole ARMS cohort and in the superior frontal gyrus in the ARMS-AD subgroup. Compared to ARMS-nonAD, the ARMS-AD group showed more gray matter volume (GMV) in the left superior parietal lobe, but less GMV in the left hippocampus and the right precuneus. We found a significant negative correlation between attenuated negative symptoms and hippocampal volume in the whole ARMS cohort. Conclusion: Reduced GMV in the hippocampus and precuneus is associated with short-term antidepressant medication and more severe depressive symptoms. Hippocampal volume is further negatively correlated with attenuated negative psychotic symptoms. Longitudinal studies are needed to distinguish whether hippocampal volume deficits in the ARMS are related to attenuated negative psychotic symptoms or to antidepressant action.
    Keywords Structural MRI ; Antidepressant medication ; Hippocampus ; Precuneus ; Negative psychotic symptoms ; Computer applications to medicine. Medical informatics ; R858-859.7 ; Neurology. Diseases of the nervous system ; RC346-429
    Subject code 150
    Language English
    Publishing date 2015-01-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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