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  • 1
    Electronic Resource
    Electronic Resource
    The Status of the Protozoa (1948)
    [s.l.] : Nature Publishing Group
    Nature 161 (1948), S. 587-589 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] II Death in Protozoa and Metazoa IT has been said by opponents of the cell-theory that since a single protozoon corresponds with a whole metazoon and not with a single cell, one might expect to find in Protozoa something corresponding to somatic death; and this is supposed to be represented by ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/161587a0
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  • 2
    Electronic Resource
    Electronic Resource
    The Status of the Protozoa (1948)
    [s.l.] : Nature Publishing Group
    Nature 161 (1948), S. 548-551 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE purpose of this article is to consider whether the Protozoa are to be regarded as cells and whether the animals so named form a natural group. The Cell as a Unit In order to decide whether a given object is or is not a cell, it is necessary to have definite ideas as to the meaning of that ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/161548a0
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  • 3
    Electronic Resource
    Electronic Resource
    Relationships in the Plumbaginaceæ (1948)
    [s.l.] : Nature Publishing Group
    Nature 161 (1948), S. 400-400 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] POLLEN- and associated stigma-dimorphism within the family Plumbaginaceæ were discovered in 1883 by McCleod1, who observed them in Limonium. Since then, the range of genera showing pollen-dimorphism has been extended by various authors2–5to include Armeria, ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/161400a0
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  • 4
    Electronic Resource
    Electronic Resource
    Failure of Sulphanilamide to Inhibit Calcification of Bone (1948)
    [s.l.] : Nature Publishing Group
    Nature 161 (1948), S. 273-274 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] BENESCH and co-workers1 have reported almost complete absence of calcification in the bones of rat fœtuses at term, following administration of large doses of sulphanilamide and sulphapyridine to the mothers during the last seven to ten days of the gestation period. Their report ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/161273b0
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  • 5
    Electronic Resource
    Electronic Resource
    Effect of Adrenaline Solutions on Oat Roots (1945)
    [s.l.] : Nature Publishing Group
    Nature 155 (1945), S. 544-544 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A SOLUTION of adrenaline, which is a catechol derivative, oxidizes in the presence of air and much more readily when some phenolases1 are present. Solutions of adrenaline in tap water can inhibit the growth of oat roots in the concentrations indicated below. ... In ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/155544a0
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  • 6
    Electronic Resource
    Electronic Resource
    Sex in Melandrium (1947)
    [s.l.] : Nature Publishing Group
    Nature 159 (1947), S. 34-34 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE development of stamens in pistillate plants of Melandrium under the influence of Ustilago violacea (Pers.) Fuckel is well known. Recently, this action has been simulated by treatment of plants with the animal hormone testosterone, while the reverse change has been caused by ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/159034a0
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  • 7
    Electronic Resource
    Electronic Resource
    “Criteria of Hybridity” (1947)
    [s.l.] : Nature Publishing Group
    Nature 159 (1947), S. 546-546 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] I REGRET that ambiguity in my article “Criteria of Hybridity”1 has caused Prof. E. Anderson inconvenience. While discussing the ‘index method’ of investigating natural populations, I made the statement: “In the majority of cases known to the author where this method has been ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/159546a0
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  • 8
    Electronic Resource
    Electronic Resource
    Criteria of Hybridity (1947)
    [s.l.] : Nature Publishing Group
    Nature 159 (1947), S. 221-223 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE importance of the study of natural hybridization is obvious in view of the large part it plays in the process of evolution. There have been considerable differences of opinion, first as to the possibility of recognizing natural hybrids and, secondly, as to the status of the parents once the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/159221a0
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  • 9
    Electronic Resource
    Electronic Resource
    A Correlation between Redox Potentials and Synergisms in Resting Bacteria (1947)
    [s.l.] : Nature Publishing Group
    Nature 159 (1947), S. 197-198 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE destruction of nicotinic acid by suspensions of resting Pseudomonas fluorescens has been shown to be an enzymatic oxidation1. We have found that the oxygen uptake was decreased when methylene blue was added, but was not affected upon addition of sulphapyridine. However, after ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/159197b0
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  • 10
    Electronic Resource
    Electronic Resource
    Structure of the ‘Sydnones’ (1946)
    [s.l.] : Nature Publishing Group
    Nature 158 (1946), S. 703-703 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IT has been shown by J. C. Earl1 that the N-nitroso-N-arylglycines, for example, Ph.N (NO).CH2.CO2H, on treatment with acetic anhydride lose a molecule of water, giving monomolecular anhydro derivatives which have been termed ‘sydnones’. The structure ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/158703a0
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