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  • 1995-1999
  • 1990-1994
  • 1985-1989  (2)
  • 1986  (2)
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  • 1995-1999
  • 1990-1994
  • 1985-1989  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Ultrastructure of monkey (Macaca radiata) spermatozoa: effect of gossypol in vivo (1986)
    Springer
    Urological research 14 (1986), S. 247-252 
    Details
    ISSN: 1434-0879
    Keywords: Monkey spermatozoa ; Gossypol effect ; In vivo examination ; Ultrastructure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The present study examines the ultrastructure of ejaculated spermatoza from bonnet monkey, Macaca radiata under noraml conditions, with gossypol treatment and during recovery from such treatment. Monkeys were fed orally with gossypol acetic acid (GAA) for 3 months (4 mg/monkey/5 days a weak). Semen samples collected by electroejaculation, and the spermatozoa were examined using both light and electron microscopy. The degree of motility was also noted by Kalla et al. [12]. Ejaculated spermatoza were immotile 90 days after GAA treatment, but little evidence for any abnormality in the spermatozoa could be seen by light microscopy. Some ultrastructural changes were observed, but not to the extent previously reported in spermatozoa of Macaca fascicularis [23]. After termination of treatment, semen samples were obtained every 5th day until sperm count and motility recovered to the normal level. After 90 days only a small proportion of spermatozoa showed abnormal structure. We conclude that in a subhuman animal model gossypol induced effects on sperm motility and morphology are reversible.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00256567
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Work function and barrier heights of transition metal silicides (1986)
    Springer
    Applied physics 40 (1986), S. 71-77 
    Details
    ISSN: 1432-0630
    Keywords: 73.40
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The work function of 13 polycrystalline transition metal suicides was measured by photoemission in uhv. Their values are discussed in relationship to their Schottky barrier heights on n-Si. While there appears to be a weak correlation for a certain group of transition metal suicides, the values of the 5d-noble metal suicides including some of the lattice matched Ni suicides appear to be completely uncorrelated. Experimental values of work functions are compared to the values proposed previously by Freeouf.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00616480
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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