Jürgen Schmitt

Darmstadt University of Applied Sciences

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Antje Bormann

Darmstadt University of Applied Sciences

Ulrich Burbaum

Darmstadt University of Applied Sciences

Clément M. L. Werner

University of Zurich

Dieter Naumann

Robert Koch Institute

Peter Lasch

Robert Koch Institute

Thomas Udelhoven

Universität Trier

Volha Shapaval

Norwegian University of Life Sciences

Hans‐Curt Flemming

Nanyang Technological University

Achim Köhler

Norwegian University of Life Sciences

Alejandra Bosch

Consejo Nacional de Investigaciones Científicas y Técnicas

Cooperative Institutions

National Research Council Canada

University of Zurich

University Hospital of Zurich

Robert Koch Institute

Philipps University of Marburg

Heidelberg University

University of North Carolina at Chapel Hill

Consejo Nacional de Investigaciones Científicas y Técnicas

Centre National de la Recherche Scientifique

Centre Hospitalier Régional et Universitaire de Nancy

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[Is the primary lesion in Behcet's disease a venous "tropism" vascularity? (author's transl)].

PubMed (1979)

Jürgen Schmitt D Barrucand D Favre J Floquet

The authors studied eight cases of Behcet's disease, all of which were characterized by different degrees of phlebitis disorders. They also reviewed the anatomical and clinical features of a similar type, reported in the published literature. They stress the frequency and severity of changes in the veins in the localization of the various symptomatic lesions of the affection. From these results, they conclude that the primary lesion in this disease could be a phenomenon of vascularity of mainly venous-"tropism" which would explain the proteiform clinical features of Behcet's aphthosis.

Vascularity

Fulminant

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Citations (1)

A robust metabolomics approach for the evaluation of human embryos fromin vitrofertilization

The Analyst (2021)

Cecilia Beatriz Fígoli Marcelo Garcea Claudio Bisioli Valeria Tafintseva Volha Shapaval

The identification of the most competent embryos for transfer to the uterus constitutes the main challenge of in vitro fertilization (IVF). We established a metabolomic-based approach by applying Fourier transform infrared (FTIR) spectroscopy on 130 samples of 3-day embryo culture supernatants from 26 embryos that implanted and 104 embryos that failed. On examining the internal structure of the data by unsupervised multivariate analysis, we found that the supernatant spectra of nonimplanted embryos constituted a highly heterogeneous group. Whereas ∼40% of these supernatants were spectroscopically indistinguishable from those of successfully implanted embryos, ∼60% exhibited diverse, heterogeneous metabolic fingerprints. This observation proved to be the direct result of pregnancy's multifactorial nature, involving both intrinsic embryonic traits and external characteristics. Our data analysis strategy thus involved one-class modelling techniques employing soft independent modelling of class analogy that identified deviant fingerprints as unsuitable for implantation. From these findings, we could develop a noninvasive Fourier-transform-infrared-spectroscopy-based approach that represents a shift in the fundamental paradigm for data modelling applied in assisted-fertilization technologies.

10.1039/d1an01191j

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Citations (10)

Festigkeit und Formänderungseigenschaften der Böden

Springer eBooks (2021)

Jürgen Schmitt Ulrich Burbaum Antje Bormann

10.1007/978-3-658-32893-1_7

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Citations (1)

Wasserhaltung

Springer eBooks (2024)

Jürgen Schmitt Ulrich Burbaum Antje Bormann

10.1007/978-3-8348-2004-4_5

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Numerische Ermittlung von Baugrundschwingungen bei dynamisch belasteten Fundamenten: Empfehlungen zur Modellierung

geotechnik (2024)

Winfried Schepers Ronald Brinkgreve Kira Holtzendorff Dirk Wegener Silke Appel

Abstract In der Praxis tätige geotechnisch Planende kommen in zunehmendem Maße mit dynamischen Fragestellungen in Berührung. Hersteller von geotechnischer Berechnungssoftware haben entsprechend ihre ursprünglich für statische Aufgabenstellungen konzipierten Produkte um die Möglichkeit zur Lösung von Wellenausbreitungsproblemen im Baugrund erweitert. Den Anwendern fehlt aber häufig die notwendige Erfahrung zur Durchführung dieser Art von numerischen Berechnungen. Die Arbeitskreise 1.4 „Baugrunddynamik“ und 1.6 „Numerik in der Geotechnik“ der Deutschen Gesellschaft für Geotechnik (DGGT) haben diese Entwicklung aufgegriffen und einen gemeinsamen Unterarbeitskreis „Numerik in der Baugrunddynamik“ gegründet. Der vorliegende Beitrag stellt die aktuellen Ergebnisse der Arbeit des Unterarbeitskreises vor und fasst die gewonnenen Erkenntnisse in Form von Empfehlungen zusammen.

10.1002/gete.202400016

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Evaluation of Ground Reaction and Convergence Relative to Possibility of Entrapment for Shielded Tunnel Boring Machines

ISRM International Symposium on In-Situ Rock Stress (2016)

Rohola Hasanpour Jürgen Schmitt

Shielded cable

Entrapment

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Biodegradation ofcis-1,4-Polyisoprene Rubbers by Distinct Actinomycetes: Microbial Strategies and Detailed Surface Analysis

Applied and Environmental Microbiology (2000)

Alexandros Linos Mahmoud M. Berekaa Rudolf Reichelt Ulrike Keller Jürgen Schmitt

ABSTRACT Several actinomycetes isolated from nature were able to use both natural rubber (NR) and synthetic cis -1,4-polyisoprene rubber (IR) as a sole source of carbon. According to their degradation behavior, they were divided into two groups. Representatives of the first group grew only in direct contact to the rubber substrate and led to considerable disintegration of the material during cultivation. The second group consisted of weaker rubber decomposers that did not grow adhesively, as indicated by the formation of clear zones (translucent halos) around bacterial colonies after cultivation on NR dispersed in mineral agar. Taxonomic analysis of four selected strains based on 16S rRNA similarity examinations revealed two Gordonia sp. strains, VH2 and Kb2, and one Mycobacterium fortuitum strain, NF4, belonging to the first group as well as one Micromonospora aurantiaca strain, W2b, belonging to the second group. Schiff's reagent staining tests performed for each of the strains indicated colonization of the rubber surface, formation of a bacterial biofilm, and occurrence of compounds containing aldehyde groups during cultivation with NR latex gloves. Detailed analysis by means of scanning electron microscopy yielded further evidence for the two different microbial strategies and clarified the colonization efficiency. Thereby, strains VH2, Kb2, and NF4 directly adhered to and merged into the rubber material, while strain W2b produced mycelial corridors, especially on the surface of IR. Fourier transform infrared spectroscopy comprising the attenuated total reflectance technique was applied on NR latex gloves overgrown by cells of the Gordonia strains, which were the strongest rubber decomposers. Spectra demonstrated the decrease in number of cis -1,4 double bonds, the formation of carbonyl groups, and the change of the overall chemical environment, indicating that an oxidative attack at the double bond is the first metabolic step of the biodegradation process.

Strain (injury)

10.1128/aem.66.4.1639-1645.2000

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Citations (172)

[The differentiation of animal proteins using vertical polyacrylamid gel electrophoresis. 4. Serum proteins of the Carnivora].

PubMed (1970)

Jürgen Schmitt U Dürr

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Adsorption and desorption of different organic matter fractions on iron oxide

Geochimica et Cosmochimica Acta (1995)