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  • 1970-1974  (2)
  • 1960-1964
  • 1970  (2)
  • Alpha-Methyl-Para-Tyrosine  (1)
  • Physics  (1)
Materialart
Erscheinungszeitraum
  • 1970-1974  (2)
  • 1960-1964
Jahr
  • 1
    ISSN: 1432-2072
    Schlagwort(e): Lysergic Acid Diethylamide ; Para-Chlorophenylalanine ; Alpha-Methyl-Para-Tyrosine ; Operant Conditioning
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract The bar-pressing behavior of hungry rats was maintained by a fixed-ratio schedule of food reinforcement. At 5 and 12 days after pretreatment with p-chlorophenylalanine (PCPA), a subtreshold dose (20 μg/kg) of lysergic acid diethylamide (LSD) was found to disrupt this behavior. No such disruption occurred when PCPA pretreatment was followed by either a distracting external stimulus (tone) or a low dose of D-amphetamine (0.3 mg/kg). Sensitivity to LSD was apparently unaffected by pretreatment with α-methyl-p-tyrosine (AMPT).
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    New York : Wiley-Blackwell
    Journal of Polymer Science Part A-1: Polymer Chemistry 8 (1970), S. 629-640 
    ISSN: 0449-296X
    Schlagwort(e): Physics ; Polymer and Materials Science
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Notizen: Phosphorus-containing polyurethans of the formula were prepared by interfacial polymerization of 1,4-butanebischloroformate and p-xylylene-α, α-bischloroformate with bis(m-aminophenyl)alkylphosphine oxides. The polymers had number average molecular weights up to 8600. A test of the stability to alkali of one of the polymers (R=CH3, X=1,4-C6H4) showed it to be as resistant as nonphosphorus analogs, and a film of this polymer exhibited self-extinguishing properties. Thermal degradation of the phosphorus polymers, which began at approximately 230°C, occurred by an initial first-order process, releasing chiefly carbon dioxide. The energies of activation for the maximum rates of weight loss were 31-37 kcal/mole.
    Zusätzliches Material: 2 Ill.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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