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  • 1970-1974  (7)
  • 1960-1964  (3)
  • 1945-1949  (1)
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Year
  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of medicinal chemistry 16 (1973), S. 959-961 
    ISSN: 1520-4804
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of neurochemistry 19 (1972), S. 0 
    ISSN: 1471-4159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract— After isolated rat brain preparations were perfused with fluid containing either mannose or glucose as metabolic substrate, extracts from the rapidly frozen cerebral cortex were prepared and analysed. Brains perfused with mannose contained somewhat lower levels of glucose-6-phosphate and fructose diphosphate than those perfused with glucose but the contents of other glycolytic intermediates were quite similar in both groups. The level of mannose-6-phosphate was high in brains perfused with either glucose or mannose, but higher in the latter. In both cases, the ratio of mannose-6-phosphate to fructose-6-phosphate was very high, suggesting that phosphomannose isomerase (EC 5.3.1.8) may be important in the regulation of glycolysis. The levels of adenine nucleotides and creatine phosphate and the redox ratios were not significantly different with mannose as substrate than with glucose. The contents of free amino acids in brains perfused with mannose did not differ significantly from those in brains perfused with glucose. Our results show that mannose is a satisfactory substrate for the brain under these experimental conditions since it maintains the energy reserves and oxidative status of the cerebral tissue and does not alter the levels of amino acids.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Metroeconomica 12 (1960), S. 0 
    ISSN: 1467-999X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 162 (1948), S. 261-262 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN continuation of our previous analysis of the decay scheme of 181Hf1, we have carried the work further with higher resolving power and using a spectrometer with a thin Geiger-Müller window. We have also carried out delayed coincidence measurements to study the ...
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Mineralium deposita 7 (1972), S. 292-313 
    ISSN: 1432-1866
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Description / Table of Contents: Zusammenfassung Als Beitrag zur Klärung der Genese der Kupferlagerstätten in der Singhbhum Shear Zone, Indien, wurden geochemische Untersuchungen an Erzen und Nebengestein durchgeführt. Spurengehalte von Cu, Co, Ni, Pb, Zn, Cd, Ag, Mn, Hg wurden mit Hilfe der AAS bestimmt, ihre Verteilung innerhalb der Zone und der angrenzenden Gesteinstypen wird diskutiert. Auf Grund der vorliegenden geochemischen Daten wird folgende Deutung zur Entstehung der Erzlagerstätten gegeben: Die Bildung der Singhbhum-Erzvorkommen ist das Ergebnis einer Folge langandauernder und sich überschneidender geologischer Prozesse, wie intensiver Scherung, syntektonischer Granitisation und damit verbundener Mobilisierung der oben genannten Elemente. Die präkambrischen Metasedimente und Metavulkanite innerhalb der Scherzone und ihrer näheren Umgebung sind als „Muttergesteine“ der erzbildenden Elemente anzusehen. Die Bildung der Lagerstätte ist das Resultat der Diffusion von Lösungen und ihres Absatzes in physikalisch-chemisch günstigen „Struktur-Fallen“, gebildet im Anschluß an die Scherung.
    Notes: Abstract The genesis of the copper ore deposits of the Singhbhum shear zone, India, has been worked out through a detailed geochemical examination of the ores and the country rocks. Following different techniques of atomic absorption, the abundances of Cu, Co, Ni, Pb, Zn, Cd, Ag, Mn and Hg were determined and the trace element characteristics of the principal rock units in and outside the shear zone have been compiled and critically evaluated. The data suggest that the ore deposits are the result of a sequence of long-continued and over-lapping geological processes culminating in intense shearing, syntectonic granitization and considerable mobilization of the ore elements. The Precambrian metasedimentary and metavolcanic rocks of the shear zone, as well as those enclosing it, served as the source, while diffusion of the ore constituents and their precipitation in physicochemically favourable structural traps, formed in response to shearing, resulted in the formation of the deposits.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 198 (1963), S. 408-408 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Samples, mostly clays, with occasional siltstone, were macerated in nitric acid and potassium hydroxide followed by separation in a heavy liquid of specific gravity 2*3. The light crop was taken and centrifuged. The sediment collected was mounted in glycerine jelly. The grains can be described ...
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 29 (1973), S. 903-904 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Résumé Sachant que le facteur entérotoxique peut être développé dans les vibrions non-agglutinables par transfer animal, nous avons déterminé les activités enzymatiques (mucinase, protéase, lécithinase) de ces vibrions. Après ce transfert l'activité lécithinasique a augmenté, et cette activité est semblable à celle d'un virus (V. cholerae). Nous supposons que l'augmentation du facteur entérotoxique est causée par celle de l'activité de la lécithinase.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Mineralium deposita 8 (1973), S. 204-206 
    ISSN: 1432-1866
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Economic change & restructuring 10 (1970), S. 133-142 
    ISSN: 1574-0277
    Source: Springer Online Journal Archives 1860-2000
    Topics: Economics
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Economic change & restructuring 4 (1964), S. 29-40 
    ISSN: 1574-0277
    Source: Springer Online Journal Archives 1860-2000
    Topics: Economics
    Type of Medium: Electronic Resource
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