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  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 11 (1964), S. 0 
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: SYNOPSIS. A comparison of the effects upon trypsin-dispersed chick liver cell cultures of a virulent (Jones' Barn) and a non-pathogenic (Lahore) strain of Trichomonas gallinae revealed significant differences in behavior of the parasites in cell cultures and in the response of such cultures. The virulent strain multiplies faster in nutrient medium in the presence of cell cultures; stimulates great activity of the macrophages; is not handled effectively by these phagocytes in which it can multiply causing their ultimate destruction; is found significantly more often within the cytoplasm of the liver epithelial and fibroblast-like cells; causes very much more profound degenerative changes in all the cells, both invaded and non-invaded; and suppresses effectively the division rate of the fibroblast-like cells. On the other hand, the nonpathogenic strain multiplies at a lower rate in the presence of cell cultures; stimulates less activity of the macrophages; is handled readily by these phagocytes in which it multiplies only very rarely, if ever; is found seldom within the liver epithelial and fibroblast-like cells; causes far less degeneration of all the cell culture elements; and suppresses significantly less the dlvision rate of the fibroblast-like cells.At the end of a 20–24 hour period typically only a few living cells are left in cultures exposed even to attenuated isolates of the virulent strain, whereas those inoculated with the mild one do not show much degeneration even after 28 hours. The effects upon the cell cultures of cell-free filtrates of actively growing trichomonad cultures are relatively minor, but the changes caused by the filtrates of cultures of Jones' Barn strain appear to be more extensive than those caused by similar filtrates of Lahore strain.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of the American Chemical Society 82 (1960), S. 2164-2166 
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A METHOD for measuring the affinity of volatile organic compounds for free electrons in the vapour phase has recently been described1. Using this method it was found that most classes of hydrocarbons had little or no affinity for electrons with thermal energies; exceptions to this rule were, ...
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Medical & biological engineering & computing 1 (1963), S. 293-303 
    ISSN: 1741-0444
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Description / Table of Contents: Résumé Aperçu de la bibliographie traitant des effets biologiques des champs magnétiques appliqués. Les effets sur lesquels il est rapporté varient suivant la nature du champs en question et la durée de l'application. La création de magnétophosphènes par l'application de champs magnétiques (d'une certaine fréquence) est un phénomène connu. La question principale semble, à l'heure actuelle, être le mode d'action responsable de ce phénomène. L'expérience a démontré que des champs statiques non uniformes, moyens à très forts, influent sur des tissus à croissance rapide. Des champs statiques dont la force atteint approximativement celle du champ magnétique terrestre, provoquent des modifications dans le déroulement de cycles biologiques.
    Abstract: Zusammenfassung Ubersicht über die Literatur, welche die bilogischen Wirkungen angelegter Magnetfelder behandelt. Die Auswirkungen, über die berichtet wird, ändern sich je nach dem einwirkenden Feld bzw. der Wirkungsdauer des Feldes. Die Erzeugung von Magnetophosphenen durch Einkung von Wechselfeldern (bestimmter Frequenzen) ist eine bekannte Erscheinung. Gegenwärtig scheint die Hauptfrage die Wirkungsweise zu sein, welche diese Erscheinung auslöst. Mittlerè bis sehr starke, uneinheitliche statische Felder haben erwiesenermaßen Wirkungen auf schnell wachsende Gewebe. Statische Felder, deren Stärken ungefähr an die des Erdfeldes heranreichen sollen Änderungen im Ablau biologischer Zyklen hervorrufen.
    Notes: Abstract The literature relevant to the biological effects of applied magnetic fields has been reviewed. Reported effects vary with the type of field applied and the duration of application. The production of magneto phosphenes by the application of alternating fields (of certain frequencies) is a well accepted phenomenon. The major question, at this time, seems to be the mode of action responsible. Medium to high strength, non-uniform, steady-state fields have well documented effects upon rapidly growing tissues. Steady-state fields with strengths approximating the natural geomagnetic field are reported to produce alterations in the pattern of biological cycles.
    Type of Medium: Electronic Resource
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  • 5
    Publication Date: 1960-05-01
    Print ISSN: 0002-7863
    Electronic ISSN: 1520-5126
    Topics: Chemistry and Pharmacology
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  • 6
    Publication Date: 1962-02-01
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Springer Nature
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