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  • Nature Publishing Group  (39)
  • Cambridge University Press  (8)
  • 1980-1984
  • 1940-1944  (47)
  • 1942  (47)
  • 1
    Digitale Medien
    Digitale Medien
    Mechanism of Metallic Friction (1942)
    [s.l.] : Nature Publishing Group
    Nature 150 (1942), S. 197-199 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] AN experimental investigation of the kinetic friction of non-lubricated metals has shown that, in general, friction cannot be regarded as a surface effect. Penetration and distortion occur to some depth beneath the surface, and the frictional force and the nature of sliding are both influenced by ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/150197a0
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Interrelationship of Vitamins A and E (1942)
    [s.l.] : Nature Publishing Group
    Nature 150 (1942), S. 91-92 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] THE effect of vitamin E in preserving vitamin A in oil solution1 and increasing the store of vitamin A in the liver of the rat2 suggests that there is an interdependence of the two vitamins which should become apparent in other ways. The failure of ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/150091a0
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Homology of the Campaniform Organs on the Wing of Drosophila melanogaster (1942)
    [s.l.] : Nature Publishing Group
    Nature 150 (1942), S. 375-375 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] IN the normal wing of Drosophila the campaniform sensilla have been noted by McEwen1, and have been shortly described by Hertweck2 who termed them “kuppelformige Organe”. They are arranged in well-defined positions which include several large groups at the base of ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/150375a0
    Standort Signatur Erwartet Verfügbarkeit
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  • 4
    Digitale Medien
    Digitale Medien
    Sexuality in Dugesia tigrina (syn. Planaria maculata ) (1942)
    [s.l.] : Nature Publishing Group
    Nature 150 (1942), S. 351-351 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] INDIVIDUALS of the striped variety of Dugesia tigrina collected in the summer of 1935 in the pond behind the Episcopal Church, Falmouth, Mass., have been maintained in the laboratory in finger bowls containing tap water and have been fed beef liver twice or three times a week. During their ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/150351a0
    Standort Signatur Erwartet Verfügbarkeit
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  • 5
    Digitale Medien
    Digitale Medien
    Preparation of Deoxycholic Acid (1942)
    [s.l.] : Nature Publishing Group
    Nature 150 (1942), S. 211-211 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] THE problem of obtaining deoxycholic acid (3, 12-dihydroxy cholanic acid) in quantity has been rendered acute by present conditions, implying the closure of the sources (largely German) of pure bile acids. Isolation from bile is laborious and yields are uncertain. Since the acid is now widely ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/150211b0
    Standort Signatur Erwartet Verfügbarkeit
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  • 6
    Digitale Medien
    Digitale Medien
    The Polygene Concept (1942)
    [s.l.] : Nature Publishing Group
    Nature 150 (1942), S. 154-154 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] DR. PAUL G. 'ESPINASSE voices1 misgivings about Mather's polygenic interpretation of selection which are, no doubt, widely felt outside the field of genetics. Each step in the development of genetic theory has given rise to such misgivings. Mather's explanations of his ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/150154a0
    Standort Signatur Erwartet Verfügbarkeit
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  • 7
    Digitale Medien
    Digitale Medien
    Influence of Potassium on Sugar Metabolism (1942)
    [s.l.] : Nature Publishing Group
    Nature 150 (1942), S. 768-769 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] IN a recent communication1 Leibowitz and Kupermintz have demonstrated that in cultures of E. coli in M/60 glucose containing potassium chloride in a concentration of M/250 the potassium stimulates the utilization of the sugar in a similar manner to that noted by Pulver and ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/150768a0
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  • 8
    Digitale Medien
    Digitale Medien
    Electron Lenses (1942)
    [s.l.] : Nature Publishing Group
    Nature 150 (1942), S. 650-652 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] AS soon as H. Busch had established the analogy between axially symmetrical electromagnetic fields and optical lenses, a question very naturally suggested itself: "Can we make electron lenses as perfect as the highly corrected lenses of modern optics ?" Compared with light optics the new science ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/150650a0
    Standort Signatur Erwartet Verfügbarkeit
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  • 9
    Digitale Medien
    Digitale Medien
    Intravenous Glucose Tolerance Curve (1942)
    [s.l.] : Nature Publishing Group
    Nature 150 (1942), S. 522-523 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] IN the usual intravenous glucose tolerance test, the blood-sugar is measured at intervals after a single rapid (2–3 min.) injection of glucose, and plotted against the time, as in the accompanying diagram. The resulting curve has hitherto been called hyperbolic, parabolic, and so on; but on ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/150522a0
    Standort Signatur Erwartet Verfügbarkeit
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  • 10
    Digitale Medien
    Digitale Medien
    A New Active Constituent of Pyrethrum Flower (1942)
    [s.l.] : Nature Publishing Group
    Nature 150 (1942), S. 153-153 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] THE pyrethrin content as determined by the chemical process is the only factor that influences the market value of pyrethrum, as it is held that a close relationship exists between the amount of pyrethrin present and the number of insects killed. The results of our experiments (see graph) ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/150153a0
    Standort Signatur Erwartet Verfügbarkeit
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