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  • 1975-1979  (5)
  • 1
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 279 (1979), S. 391-396 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Myoplasmic calcium transients in response to pulse depolarisations have been monitored using the dye antipyralazo III, which provides a linear measure of the change in cytoplasmic free calcium concentration. Intramembrane charge movements were recorded simultaneously with the calcium transients. ...
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 265 (1977), S. 556-560 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Whole muscles or muscle fibre bundles stimulated to produce propagated action potentials exhibit an increase in optical transparency shortly after the action potential11,12. In these conditions the transparency increase follows a time course generally similar to that of latency relaxation11, the ...
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    International urology and nephrology 9 (1977), S. 255-265 
    ISSN: 1573-2584
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract In acute serum sickness glomerulonephritis induced in rabbits by large doses of BSA, the relationship of the host's immunological status and the severity of renal histological changes was studied. It was found that good antibody producers developed more severe renal lesions. The higher avidity of antibodies enhances the inflammatory effect of immune complexes. Kidney is favoured for deposition of immune complexes especially in the case of chronic immune complex formation in the presence of antigen excess. Diminished phagocytic function of leukocytes (probably decreased immune complex saturating capacity) may also contribute to the severity of renal histological alterations.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    International urology and nephrology 10 (1978), S. 349-353 
    ISSN: 1573-2584
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Journal of thermal analysis and calorimetry 13 (1978), S. 141-147 
    ISSN: 1572-8943
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Résumé Afin d'étudier la relation entre les données obtenues et la préparation et les caractéristiques morphologiques des échantillons le PVC a été utilisé comme substance modèle pour les mesures thermiques effectuées par les auteurs. Le PVC traité était un polymère commercial en suspension, Ongrovil S 155, fabriqué par Borsodi Vegyi Kombinát. Le processus thermique complet a été suivi par TG et TGD en atmosphère d'air et d'argon, à l'aide du thermoanalyseur Du Pont 990. L'analyse des gaz dégagés s'est effectuée dans un appareil construit par les auteurs. La Chromatographie en phase gazeuse des produits résultant de la pyrolyse s'est effectuée en utilisant un pyrolyseur type Hamilton et un chromatographe Carlo Erba avec un détecteur d'ionisation de flamme. Les études ont mis en évidence le dégagement de benzène et d'autres composés du polymère initial ainsi qu'une altération qui dépend des caractériques morphologiques des échantillons; ces phénomènes sont attribués au mécanisme de la dégradation thermique du PVC.
    Abstract: Zusammenfassung Um die Abhängigkeit der erhaltenen Angaben von der Vorbereitung und den morphologischen Charakteristika der Proben zu untersuchen wurde PVC als Modellsubstanz bei thermischen Messungen eingesetzt. Das behandelte PVC war ein handelsübliches Suspensionspolymer Ongrovil S 155, hergestellt von der Eirma Borsodi Vegyi Kombinat. Der ganze thermische Vorgang wurde mittels TG und DTG-Messungen in Luft und in Argon-Atmospäre unter Einsatz des Du Pont 990 Thermoanalyser verfolgt. Die Analyse des entwickelten Gases wurde in einem Eigenbau-Gerät durchgeführt. Die Pyrolysen-Gaschromatographie wurde mittels eines Hamilton Pyrolysegeräts und eines Carlo Erba Chromatographen mit Flammenionisationsdetektor durchgeführt. Die Prüfungen zeigten die Entwicklung von Benzol und anderer Verbindungen aus dem Ausgangspolymer und eine von den morphologischen Eigenschaften der Proben abhängige Änderung, welche dem unterschiedlichen Mechanismus der thermischen Zersetzung von PVC zugeschrieben wurde.
    Notes: Abstract PVC was used as a model substance to study the dependence of thermal measurement data on the preparation and morphological characteristics of samples The PVC treated was a commercially available suspension polymer, Ongrovil S 155, produced by the Borsodi Vegyi Kombinát. The whole thermal process was followed by TG and DTG measurements in air and argon atmospheres by means of a Du Pont 990 Thermoanalyzer. Evolved-gas analysis was performed with a home-made apparatus. Pyrolysis gas chromatography was accomplished using a Hamilton type pyrolyzer and a Carlo Erba Chromatograph furnished with a flame ionization detector. The investigations showed benzene and other components to be evolved from the initial polymer and an alteration depending on the morphological characteristics of the samples. This was suggested to be due to the different mechanisms of thermal degradation of the PVC.
    Type of Medium: Electronic Resource
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