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  • 1955-1959  (5)
  • 1
    Electronic Resource
    Electronic Resource
    Determination of Magnesium Content of Calcium Phosphates and Commerical Lime (1958)
    s.l. : American Chemical Society
    Analytical chemistry 30 (1958), S. 1991-1993 
    Details
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ac60144a033
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Selective Inhibition of Ribonucleic Acid Synthesis in Staphylococcus aureus by Vancomycin (1959)
    [s.l.] : Nature Publishing Group
    Nature 184 (1959), S. 1894-1895 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] During investigations on the mode of action of vancomycin (free base) on S. aureus it was found that after its addition to a logarithmic-phase culture both nephelos and optical density readings continued to increase for a period of about 60 min., although at a reduced rate. During this same ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/1841894b0
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Zur Physiologie und Pathophysiologie körpereigener Amine (1956)
    Springer
    Journal of molecular medicine 34 (1956), S. 799-801 
    Details
    ISSN: 1432-1440
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Zusammenfassung 1. Einleitend wird eine kurze Übersicht der theoretischen bzw. empirischen Grundlagen für die hier unternommenen Untersuchungen gegeben. 2. Es wird versucht, den Aminbestand des Urins mittels einer neuen Modifikation zweidimensionaler Papierelektrophorese und -chromatographie abzuklären. Bisher wurden 18 flüchtige Amine festgestellt, von denen 5 bekannter Natur waren (Ammoniak, Methylamin, Dimethylamin, Piperidin und Nicotin). 3. Ein weiteres, bisher nur bei Lebererkrankungen festgestelltes flüchtiges Amin (Colamin) wurde auch bei Gesunden nachgewiesen. 4. Neu wurde dasÄthylamin undPyrrolidin identifiziert. Von weiteren 10 flüchtigen Aminen konnten dieR f - uneE f -Werte festgestellt werden; die Identifizierung ist aber noch nicht erfolgt. 5. Quantitativ konnte ein Unterschied zwischen normal und pathologisch hinsichtlich eines noch nicht charakteristischen flüchtigen Amines mit denR f - undE f -Werten von je 0,46 festgestellt werden.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01468050
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Hydrodynamic properties of polyelectrolytes. Part I. Poly-4-vinyl-N-n-butylpyridinium bromide (1956)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Polymer Science 21 (1956), S. 463-472 
    Details
    ISSN: 0022-3832
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The viscosity, streaming birefringence, and sedimentation of a sample of poly-4-vinyl-N-n-butylpyridinium bromide have been measured in aqueous and in sodium chloride solutions. The theory of Peterlin for concentrated solutions has been found to be in agreement with the results. Values of the molecular weight have been calculated by different methods and a value of 9 × 105 has been chosen.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1956.120219910
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Hydrodynamic properties of polyelectrolytes. Part II. Poly-4-vinylpyridine (1956)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Polymer Science 21 (1956), S. 473-482 
    Details
    ISSN: 0022-3832
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The hydrodynamic properties of fractionated samples of poly-4-vinylpyridine have been studied. The intrinsic viscosities and the Huggins' constant (k′) have been obtained. The effect of shear on the viscosity disappears at high dilution. The sedimentation constants (S0) have been measured, and the streaming birefringence has been investigated at various concentrations and shear gradients. The Peterlin theory for concentrated solutions is in good agreement with the results for the orientation angle, but is not so well in accord with the magnitude of the birefringence. The partial specific volume is low (0.685). Molecular weights have been calculated for the fractions, and it is concluded that the shape of the molecules in solution approximates to that of a stiff coil.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1956.120219911
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    Paper (German National Licenses)
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