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  • Electronic Resource  (14)
  • 1960-1964  (14)
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  • Electronic Resource  (14)
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  • 11
    Electronic Resource
    Electronic Resource
    Some Microstructures of Complex Morphology Observed in Preparations of Carbonaceous Chondrites made under Sterile Conditions (1963)
    [s.l.] : Nature Publishing Group
    Nature 197 (1963), S. 1245-1248 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] VARIOUS classes of microstructures in the 5-30(jL size-range have recently been examined in samples of carbonaceous meteorites by Claus and Nagy1-3, who have named the objects "organized elements". On the basis of detailed morphological studies and staining reactions with biological dyes, Claus and ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/1971245a0
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    Paper (German National Licenses)
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  • 12
    Electronic Resource
    Electronic Resource
    Evidence of an Extraterrestrial Origin for Some Organic Constituents of Meteorites (1963)
    [s.l.] : Nature Publishing Group
    Nature 197 (1963), S. 1290-1290 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Samples of Orgueil, Murray, Mokoia and Haripura meteorites were extracted separately for 6 h in a Soxhlot apparatus with a 9: 1 benzene-methanol mixture. The solvent was evaporated from the extract and the isotopic composition determined of the hydrogen, carbon and sulphur of residues from each ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/1971290a0
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    Paper (German National Licenses)
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  • 13
    Electronic Resource
    Electronic Resource
    Organic constituents of the carbonaceous chondrites (1963)
    Springer
    Space science reviews 1 (1963), S. 647-682 
    Details
    ISSN: 1572-9672
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract From a brief discussion of forms of meteorite carbon it is concluded that almost all the carbon in the carbonaceous chondrites is present as organic matter. Attempts to extract and identify this organic matter are then reviewed. It is shown that only 25 per cent has been extracted and only about 5 per cent chemically characterized. Of this 5 per cent most is a complex mixture of hydroxylated aromatic acids together with various hydrocarbons of the paraffin, naphthene and aromatic series. Small amounts of amino acids, sugars and fatty acids also are present. The possible chemical nature of the major fraction is discussed. It is suggested to be a mixture of high-molecular weight aromatic and hydrocarbon polymers. Possible sources of contamination of the meteorites are described and evidence indicating a general lack of organic contaminants is presented. It is concluded that most of the organic constituents are indigenous to the meteorites and are extra terrestial in origin. Synthetic processes for the compounds are mentioned and it is concluded that the organic material is probably of abiogenic origin. A brief review on studies of “organized elements” contained within the meteorites is presented. Difficulties of identification are discussed and photographs of some micro-structures of several carbonaceous chondrites are presented. No final conclusion about the nature of these objects is possible, but some appear to be various indigenous organic and mineral structures, while others are terrestrial contaminants.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00212447
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    Paper (German National Licenses)
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  • 14
    Electronic Resource
    Electronic Resource
    Some steps in the degradation of naphthalene acetic acid (1963)
    Springer
    Plant and soil 18 (1963), S. 338-345 
    Details
    ISSN: 1573-5036
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary A pseudomonad capable of using napthalene acetic acid as sole carbon source was isolated from soil. The route of decomposition proceeded through α-naphthol, salicyclic acid, and catechol. Similarities of this route to that for the breakdown of indole acetic acid are indicated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01347233
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    Paper (German National Licenses)
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