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  • 1980-1984  (4)
  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of the American Chemical Society 103 (1981), S. 2734-2743 
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 87 (1983), S. 3682-3688 
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-0584
    Keywords: AKR Leukemia ; Vincristine ; Recruitment
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary In order to investigate the influence of a cell-cycle specific agent on the cytokinetic behavior of a leukemic cell population in vivo, labeling studies with tritiated thymidine (3HTDR) followed by administration of vincristine (VCR) were performed on thymic cells of advanced AKR leukemic mice and evaluated utilizing a combined autoradiographic-Feulgen-microspectrophotometric technique. Twelve hours after a single drug injection the stathmokinetic effect of VCR was observed as reflected by an accumulation of cells in the S/G2-M phase of the mitotic cycle. Within 28 h this effect was no longer evident, but the significant increase in % unlabeled S/G2-M cells strongly suggested an influx of previously non-proliferating cells into the proliferating compartment (recruitment).
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 33 (1982), S. 83-88 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: A study of the dealloying resistance of noble metal dental alloys.In connection with the development of low gold dental alloys the corrosion resistance of homogeneous gold-palladium-silver-experimental alloys was investigated in a chloride solution. Analogous measurements were made with several noble metal containing intermetallic phases which may be present in dental alloys of more complex composition. The results indicate a high corrosion resistance of the homogeneous gold-palladium-silver-alloys, since their free corrosion potentials are always situated within a region of their anodic polarization curves, where the current density of metal dissolution is extremely low. Within the composition limits of these alloys the substitution of gold by palladium did not reduce the extension of this “region of immunity” in a significant way. Intermetallic phases, however, as present in the systems silver-tin, silver-palladium-tin and silver-palladium-indium show a clearly restricted “region of immunity” and, at the free corrosion potential, are dissolved at a relatively high rate.
    Notes: Im Zusammenhang mit der Entwicklung goldarmer Dentallegierungen wurde in einem Chloridelektrolyten die, Korrosionsbeständigkeit homogener Gold-Palladium-Silber-Modellegierungen untersucht. Analoge Messungen wurden an verschiedenen edelmetallhaltigen intermetallischen Phasen durchgeführt, die in komplizierter zusammengesetzten Dentallegierungen auftreten können. Die Meßergebnisse zeigen, daß die Gold-Palladium-Silber-Legierungen eine hohe Korrosionsbeständigkeit aufweisen, da ihre Korrosionspotentiale durchweg in jenem Bereich ihrer anodischen Stromspannungskurve liegen, in dem die Geschwindigkeit der Metallauflösung extrem klein ist. Die Ausdehnung dieses “Resistenzbereiches” wird nicht wesentlich verkleinert, wenn innerhalb der hier vorgegebenen Grenzen Gold teilweise durch Palladium substituiert wird. Intermetallische Phasen der Systeme Silber-Zinn, Silber-Palladium-Zinn und Silber-Palladium-Indium weisen dagegen einen deutlich eingeschränkten Resistenzbereich auf und werden bereits beim Korrosionspotential vergleichsweise schnell aufgelöst.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
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