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  • 1985-1989
  • 1980-1984  (2)
  • 1984  (2)
Material
Years
  • 1985-1989
  • 1980-1984  (2)
Year
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Research in experimental medicine 184 (1984), S. 59-65 
    ISSN: 1433-8580
    Keywords: Cholecystectomy ; Colorectal tumors ; Mice ; 1,2-Dimethylhydrazine
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The influence of previous cholecystectomy (CCE) on the 1,2-dimethylhydrazine (DMH)-induced colorectal tumorigenesis was examined in 497 female NMRI mice after 14, 20, 24, 28, 33, and 36 weeks of induction time. There were only minor differences between the cholecystectomized and the non-cholecystectomized animals with regard to the percentage of tumor-bearing animals, number of adenomas, and location of the tumors. Only after an induction time of 20 weeks, the operated group had significantly more carcinoma-bearing animals than the non-operated group (P〈0.01,χ 2-test). The implication of these results on known data of epidemiologic studies in human colorectal cancer are discussed.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Acta Polymerica 35 (1984), S. 548-553 
    ISSN: 0323-7648
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Mittels IR- und DSC-Messungen wurde die Kristallisation der Komponenten von Polyethylen-Polypropylen-Mischungen verfolgt. Die Ergebnisse wurden auf Basis der Avrami-Gleichung analysiert. Die Analyse ergab, daß die Kristallisationsgeschwindigkeit des PP vom PE-Gehalt und von der Kristallisationstemperatur abhängt. Oberhalb 122°C bewirkt PE eine Abnahme der Kristallisationsgeschwindigkeit des PP, während unterhalb von 122°C das PE die Kristallisation des PP beschleunigt. Beim PE-Gehalt von 0 bis 50% sowie von 80 bis 100% verursacht PP eine Zunahme der Kristallisationsgeschwindigkeit des PE, im Bereich von 50 bis 80% PE wird dessen Kristallisationsgeschwindigkeit verringert.
    Notes: Using the IR and DSC techniques the crystallization of the components in polyethylene-polypropylene blends was investigated. The results were analyzed in terms of the Avrami equation. The analysis shows that the crystallization rate of PP depends on the PE content and on the temperature of crystallization. Above 122°C PE causes a decrease of the crystallization rate of PP, whereas below 122°C PE accelerates the crystallization of PP. In the ranges of PE content 0 to 50% and 80 to 100% PP causes an increase of the crystallization rate of PE, whereas in the range 50 to 80% PE decreases the rate of crystallization.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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