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  • 1
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    High-affinity choline transport in proteoliposomes derived from rat cortical synaptosomes (1982)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1982-08-27
    Description: Functional high- and low-affinity choline transport processes from rat cortical plasma membranes were reconstituted in phosphatidylcholine bilayer liposomes. The high-affinity choline transporter demonstrated a pharmacological profile and ion dependency that were identical to those of intact synaptosomes. This preparation may be used to further characterize choline transport and, with appropriate supplementation, to investigate the release of acetylcholine in the absence of synaptic vesicles.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Meyer, E M -- Cooper, J R -- NS 09836/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1982 Aug 27;217(4562):843-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7100928" target="_blank"〉PubMed〈/a〉
    Keywords: Acetylcholine/metabolism ; Animals ; Biological Transport ; Cell Membrane/metabolism ; Chlorides/metabolism ; Choline/*metabolism ; Kinetics ; Lipid Bilayers/metabolism ; Liposomes/*metabolism ; Phosphatidylcholines/metabolism ; Rats ; Sodium/metabolism ; Synaptosomes/*metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
    Electronic Resource
    Electronic Resource
    Electronic specific heat of YBa2Cu3O6+x from 1.8 to 300 K (1994)
    Springer
    Journal of superconductivity 7 (1994), S. 243-249 
    Details
    ISSN: 1572-9605
    Keywords: Electronic specific heat ; superconductivity ; pseudogap ; Fermi statistics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology , Physics
    Notes: Abstract We have determined for the first time the electronic specific heatγ(x, T) of YBa2Cu3O6+x for 0.16≤x≤0.97 from 1.8 to 300 K. Weakly superconducting behavior betweenx=0.4 and 0.8 progresses rapidly to strong coupling BCS-like superconducting and metallic normal state behavior forx〉 0.9. However, the continuous development of the entropyS(x, T) withx andT across the entire series suggests a progressive modification of the low-energy spin spectrum with hole doping rather than a simple band model. Fermi statistics andk-space pairing for allx is indicated by the magnitude andT-dependence ofS(x, T). Pseudogap behavior inS(x, T) is observed over a temperature region aboveT c , which increases rapidly with oxygen depletion to around 200 K forx∼0.7. This loss of entropy reflects normal-state correlations apparently unrelated to the superconducting pairing.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00730405
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    Paper (German National Licenses)
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