Search Results - (Author, Cooperation:Z. W. Brown)

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  1. 1
    Staff View
    Publication Date:
    2012-06-09
    Publisher:
    American Association for the Advancement of Science (AAAS)
    Print ISSN:
    0036-8075
    Electronic ISSN:
    1095-9203
    Topics:
    Biology
    Chemistry and Pharmacology
    Computer Science
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    Arctic Regions ; Biomass ; Diatoms/growth & development ; *Eutrophication ; *Ice Cover ; Light ; Nitrates/analysis ; Oceans and Seas ; Photosynthesis ; Photosystem II Protein Complex/analysis ; Phytoplankton/*growth & development ; Seawater/chemistry
    Published by:
    http://www.aaas.org/

    Latest Papers from Table of Contents or Articles in Press
  2. 2
    Brown, Z. W. ; Amit, Z. ; Rockman, G. E.
    Springer
    Published 1979
    Staff View
    ISSN:
    1432-2072
    Keywords:
    Acetaldehyde ; Ethanol ; Intraventricular self administration ; Rats
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Medicine
    Notes:
    Abstract For 11 consecutive days, naive rats were maintained in operant chambers where they were given the opportunity to self-administer acetaldehyde (1,2, or 5% v/v), ethanol (2 or 10% v/v), or pH control solutions directly into the cerebral ventricles. Only the animals that had access to the 2 and 5% acetaldehyde solutions showed rates of lever pressing significantly higher than controls. It is suggested that acetaldehyde rather than ethanol itself may mediate the positive reinforcing effects of ethanol in the brain.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF00427509

    Articles: DFG German National Licenses
  3. 3
    Amit, Z. ; Brown, Z. W. ; Sklar, L. S.
    Springer
    Published 1976
    Staff View
    ISSN:
    1432-2072
    Keywords:
    Morphine ; Intraventricular ; Self-administration
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Medicine
    Notes:
    Abstract Male Wistar rats implanted with cannulae aimed at the left lateral cerebral ventricle were individually maintained in Skinner boxes for 11 consecutive days. Animals were neither predependent on morphine nor shaped to press the operant lever. Experimental animals (n=7) obtained intraventricular infusions of a 1% morphine HCl solution (2 μl per 5-s infusion) for each lever press while control animals (n=7) received only the vehicle. Four animals were yoked to experimental animals and received equivalent but non-contingent morphine HCl infusions. The mean number of lever presses per day for the experimental group was significantly higher than for the vehicle control or yoked control groups suggesting that naive rats will work for the positive reinforcing properties of morphine when it is infused centrally.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF00496864

    Articles: DFG German National Licenses