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  • Nature Publishing Group  (3)
  • Geological Society of London
  • 1975-1979
  • 1965-1969  (3)
  • 1966  (3)
Collection
Publisher
Years
  • 1975-1979
  • 1965-1969  (3)
Year
  • 1
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 212 (1966), S. 1037-1038 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The three main modes of entry of a compound into the human body are inhalation, absorption through the skin, and ingestion. In the case of the population not exposed to insecticides by their occupation in the United States20, food was found to contribute more than 90 per cent of the DDT absorbed. ...
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 209 (1966), S. 957-960 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN his comments on my views on the validity of the supposed taxon H. habilis, Tobias exhibits misapprehension of the basis of my criticism as well as confusion over some basic principles of taxonomy. The existence of some detectable differences between the known specimens attributed to H. habilis ...
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 211 (1966), S. 1202-1203 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] In these investigations, release of ammonium-nitrogen was followed using the soil perfusion technique and the accumulation of nitrate-nitrogen (nitrification) was used as an index of mineralization. Fifty grams of Guelph loam (2 to 5 mm mesh, pH. 7-0-7-3) were perfused with 200 ml. of distilled ...
    Type of Medium: Electronic Resource
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