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  • 1980-1984  (1)
  • 1965-1969  (1)
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  • 1
    Digitale Medien
    Digitale Medien
    Impairment of learning or memory in the mature and old rat by diazepam (1981)
    Springer
    Psychopharmacology 73 (1981), S. 304-305 
    Details
    ISSN: 1432-2072
    Schlagwort(e): Diazepam ; Passive-avoidance ; Agedependent ; Learning ; Memory
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract Old and mature adult rats were injected IV with diazepam 30 s prior to the initial session in a step-through task. Fifteen hours after the initial session diazepam produced an age-dependent impairment of the step-through task. It is concluded that diazepam probably decreased the passive-avoidance responding of the animals by causing an agedependent impairment of learning or memory.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00422422
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    On the uniqueness of the flagellum ofThiobacillus thiooxidans (1967)
    Springer
    Antonie van Leeuwenhoek 33 (1967), S. 196-202 
    Details
    ISSN: 1572-9699
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract The flagellum of the obligate chemolithotrophThiobacillus thiooxidans was found to retain its integrity and function under environmental conditions that characterize it as among the most stable of alloplasmatic structures. Although a simple, presumably unsheathed organelle approximately 17 mµ in diameter, it is operationally active at a hydrogen ion concentration measured as low as pH 0.6. It was found to resist 1 hr exposures at 37 C to 6m urea, 10m acetamide, 1n H2SO4, 2°o trypsin, and heating to 70 C for 45 min at pH 5.0. It was, however, destroyed after 1 hr in 10n H2SO4 at room temperature. In addition, the flagellum can be synthesized at pH 1.1, but only in the presence of sulfur. The synthesis requires a longer time than in chemoorganotrophic cubacteria.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02045551
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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    Artikel (Nationallizenzen)
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