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  • Articles: DFG German National Licenses  (3)
  • 1970-1974
  • 1935-1939  (3)
  • 1937  (3)
Source
  • Articles: DFG German National Licenses  (3)
Material
Years
  • 1970-1974
  • 1935-1939  (3)
Year
  • 1
    Electronic Resource
    Electronic Resource
    Über einige Beobachtungen der Änderung der äquivalenten Höhen der Ionosphäre (1937)
    Springer
    The European physical journal 105 (1937), S. 309-318 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Zusammenfassung Mit elektrischen Wellen von 78 m Länge wird die Laufzeit des Echos von derE-Schicht gemessen. Die Höhe dieser Schicht nimmt in den Morgenstunden zu, was sich durch das Entstehen der niedrigeren D-Schicht erklären läßt. DieseD-Schicht muß aber ein ziemlich breites Ionisationsmaximum besitzen, denn nur so läßt sich die scheinbare Wegverlängerung und die wachsende Absorption erklären, die man bei Annäherung an die kritische Frequenz (140 m) dieser Schicht beobachtet.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01330602
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Effect of Centrifuging on Amæba proteus ( Y ) (1937)
    [s.l.] : Nature Publishing Group
    Nature 139 (1937), S. 675-675 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN Amæba proteus, the cytoplasmic bodies are the nutritive spheres, crystals, neutral red bodies, mitochondria, sudanophil fat and a single contractile vacuole. Fig. 1 illustrates the stratification of the various cytoplasmic components according to their specific gravity after ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/139675a0
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Changes in Chloroplast Pigments in Leaves during Senescence (1937)
    [s.l.] : Nature Publishing Group
    Nature 140 (1937), S. 728-728 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Loss of chlorophyll in senescent leaves is a general phenomenon, and various views have been put forward to explain how chlorophyll disappears as the leaf yellows. The possibilities recognized are: (1) the decomposition of chlorophyll into its basic components and the transference of the latter ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/140728a0
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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