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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Naunyn-Schmiedeberg's archives of pharmacology 260 (1968), S. 269-274 
    ISSN: 1432-1912
    Keywords: Substance P ; Physalaemin ; Gall Bladder ; Pancreatic Secretion ; Substanz P ; Physalämin ; Gallenblase ; Pankreas-Sekretion
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung 1. Substanz P-Extrakt aus Hirn (4150 E/mg Protein) und das Physalämin-ähnliche Peptid Pro-Asp(NH2)-Lys-Phe-Tyr-Gly-Leu-Eti-NH2 kontrahieren beim Hund die Gallenblase und stimulieren die Pancreas-Sekretion. Die Sekretion von Lebergalle bleibt konstant oder nimmt ab. Die Wirkung des Substanz P-Extraktes wird durch Inkubation mit Chymotrypsin zerstört. 2. Roher Substanz P-Extrakt aus Darm (22 E/mg Protein) wirkt wesentlich stärker als Hirnextrakt, wahrscheinlich wegen seines zusätzlichen Gehaltes an Sekretin und/oder Cholecystokinin. 3. Substanz P ist auch in diesen Wirkungen dem Physalämin und seinen Abkömmlingen sehr ähnlich.
    Notes: Summary 1. Substance P-extract from brain (4150 u/mg protein) and the physalaemin-like peptide Pro-Asp(NH2)-Lys-Phe-Tyr-Gly-Leu-Eti-NH2 contract the gall bladder and stimulate pancreatic secretion in the dog. Hepatic bile flow remains constant or is decreased. The activity of the substance P-extract is destroyed by incubation with chymotrypsin. 2. Crude substance P-extract from the intestine (22 u/mg protein) is much more effective than brain extract, probably because of its additional content of secretin and/or cholecystokinin. 3. In these actions, as in others, a close similarity between substance P and physalaemin derivatives is evident.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 98 (1995), S. 289-296 
    ISSN: 1434-6036
    Keywords: 05.40.+j ; 05.60.+w ; 72.10.-d
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We investigate the influence of the environment on coherent quantum transport. While random processes with classical stochastic potentials can be treated in the concept of phase memory, this is not possible for fully quantized system-plus-reservoir models. In the latter case, the decay of coherences is not only depending on the coupled dynamics, but also crucially on the special geometry of the physical system in regard. We introduce a microscopic model with localized environmental modes where the geometry dependence is removed and calculate the coherence length.
    Type of Medium: Electronic Resource
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