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  • Nature Publishing Group  (15)
  • Geological Society of London  (2)
  • 1965-1969  (13)
  • 1955-1959  (4)
  • 1
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 224 (1969), S. 283-284 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Carworth Farm rats (type E) were fed diets containing 10 or 30 p.p.m. of the photo-isomer for 13 weeks, then killed; and the brain, liver, adipose tissue and blood were removed for analysis by gas-liquid chromatography (Fig. 2). Two peaks were evident from extracts of all the tissues: one ...
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  • 2
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 217 (1968), S. 550-551 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The relevant spin resonance spectrum (Fig. la and b) could be completely simulated (Fig. Ic) if the following splitting constants were assumed: a1= 1.135 gauss (two protons); a2= 1.562 gauss (two protons); a3 = 2.362 gauss (two protons); a4= 5.196 gauss (two protons); a5 = 5.469 gauss (two ...
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  • 3
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 214 (1967), S. 534-534 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Anaerobic topsoil values (?NH4 ? N) and aerobic topsoil values (? (NH44-NO34-NO2) ? N) were correlated with maize fertilizer experimental data obtained from a small number of trials (twenty sites) carried out in western Tanzania. The air dry topsoils (0-15 cm) used in the incubation tests were ...
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  • 4
    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. ...
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  • 5
    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 ...
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  • 6
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 205 (1965), S. 121-124 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] LEAKEY, Tobias and Napier have given a preliminary account of specimens which in their opinion belong to a hitherto unknown species of the genus Homo1. They re-defined the latter genus and proposed the species name H. habilis, with definition, for the new taxon which includes specimens discovered ...
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  • 7
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 182 (1958), S. 1607-1608 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The first effects were observed on trees in field trials which had been treated with phenyl mercury acetate, and appeared 4 5 months after the last application of the fungicide. These effects took the form of a severe leaf scorch such as is often associated with the use of phytotoxic materials. ...
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  • 8
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 180 (1957), S. 521-522 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN May 1956 Dr. C. K. Brain, at that time working in the Department of Vertebrate Palaeontology and Physical Anthropology of the Transvaal Museum on the australopithecine-bearing breccias, discovered some stone artefacts in breccia rubble near a small pit 55 ft. west of the Sterkfontein Type Site. ...
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  • 9
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 184 (1959), S. 583-585 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A MEASURE of controversy has been aroused by-Dart's thesis that Australopithecus used bones, horns and teeth as implements. Evidence for this view has mainly come from Makapansgat, but it is the purpose of this article to report the discovery of a bone implement at Sterkfontein. This single find ...
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  • 10
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 215 (1967), S. 33-35 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The dynamics of the diffusion of organochlorine pesticides in ecosystems can be described by a model based on the theory of sets. The model shows that research which relies on measurement of the pesticide at different periods of time can lead to misleading ...
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