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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Archives of virology 45 (1974), S. 382-385 
    ISSN: 1432-8798
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    International journal of biometeorology 17 (1973), S. 239-241 
    ISSN: 1432-1254
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography , Physics
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-2013
    Keywords: Glycine ; GABA ; Convulsants ; Intracellular Recording ; Medullary Reticular Neurones ; Inhibitory Transmitters
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Studies involving intracellular recording during extracellular drug administration have revealed that both glycine and GABA hyperpolarize and increase the membrane conductance of reticulospinal neurones, glycine usually being more effective than GABA. The inhibition of firing of some medullary reticular neurones produced by stimulating the ventrolateral area of the spinal cord (where reticulospinal axons lie) is blocked by strychnine, which blocks the depression by glycine without affecting that by GABA. Such inhibition is not reduced by bicuculline or picrotoxin in concentrations which block the action of GABA, but do not affect that of glycine. The synaptic inhibition of other reticular neurones is blocked by bicuculline or picrotoxin, but not by strychnine. Thus, both glycine and GABA are likely to be inhibitory transmitters in the medullary reticular formation, possibly released from axon collaterals of two different populations of inhibitory reticulospinal neurones.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Colloid & polymer science 250 (1972), S. 262-263 
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 386 (1971), S. 340-344 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Die Geschwindigkeit der Selbstzersetzung von Fe(OH)2 unter Luftausschluß wurde unter Zusatz von Cu(II) (0-6 Atom-%) bei 30 bis 50°C bestimmt. Das Maximum der Geschwindigkeit und ein Minimum der Aktivierungsenergie tritt bei 1% Cu/Fe auf. Dies wird zwei gleichzeitig wirksamen Einflüssen des Cu zugeschrieben: Erstens der Verzerrung des Koordinationskomplexes durch Cu2+, die die Strukturumwandlung in Magnetit erleichtert, dagegen wirkt negativ der Einfluß des Cu, der zur Vergrößerung der Fe(OH)2-Kristalle führt. Röntgenaufnahmen und elektronenmikroskopische Beobachtungen bestätigen die Annahme.
    Notes: The rate of self-decomposition of iron(II) hydroxide doped with various amounts (0-6 atomic%) of Cu(II) was determined in the absence of oxygen at the temperature range of 30 to 50°C. The maximum rate and the minimum activation energy were observed at 1% Cu/Fe. The result was attributed to the two simultaneous actions of Cu2+, i.e., the distortion effect on coordination complex of Fe2+ by Cu2+ to ease the structural transformation to magnetite and the hindering effect on magnetite formation revealed consequently in the growth of Fe(OH)2 crystals. Both effects were proved by X-ray diffraction and election-microscopic observations.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 391 (1972), S. 86-96 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Der Einfluß von Kupfer(II) auf die Kristallisation von α-FeOOHα-FeOOH wurde in mehreren Proben ohne und mit Zusatz von Cu(II)-Ionen (bis zu 5 Atom-%) unter bestimmten Bedingungen dargestellt und röntgeno-graphisch, durch BET, DTA und elektronenmikroskopisch untersucht. Durch Zusatz von 2,5 Atom-% wird die Kristallisation des α-FeOOH vollständig verhindert. Geringe Cu-Zusätze verzögern die Kristallisation. Das Wachsen der Partikel- und Kristallitgrößen von reinem und Cu-dotiertem α-FeOOH unterscheidet sich. Nach der Theorie des Autors wird der Einfluß der Cu2+-Ionen auf die Verzerrung des Koordinationsgitters diskutiert. Es besteht vermutlich ein Zusammenhang zür korrosionshemmenden Wirkung von Kupferzusätzen im Stahl.
    Notes: Various α-FeOOH samples have been prepared with or without addition of Cu(II) (0-5% Cu/Fe) and examined by X-ray diffraction, BET surface area determination, electron-microscopical observation and DTA. Doping with Cu in suitable amounts impedes completely the formation of α-FeOOH. The mechanism of growth, based on the changes of particle size and crystallite dimension, appears to be different between pure and Cu-doped α-FeOOH. The reason of the remarkable effect of Cu on the crystallization process of α-FeOOH is discussed. The effect of Cu is likely relevant to the role of Cu added to anticorrosive steel used in atmospheric environment.
    Additional Material: 12 Ill.
    Type of Medium: Electronic Resource
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