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  • Articles  (47)
  • Nature Publishing Group  (43)
  • American Association for the Advancement of Science (AAAS)
  • Ovid Technologies
  • Springer Science + Business Media
  • 2015-2019
  • 1930-1934  (47)
  • 1933  (47)
Collection
  • Articles  (47)
Years
  • 2015-2019
  • 1930-1934  (47)
Year
  • 1
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 132 (1933), S. 102-102 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] RECENTLY, Dr. André Girard very kindly placed at our disposal a large quantity of an extract of the urine of pregnant mares from which the keto-hydroxyœstrin had been previously removed. Attempts to isolate from the neutral fraction of this extract, the sterol degradation product pregnandiol, ...
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  • 2
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 131 (1933), S. 911-912 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] CRYSTALS of vitamin B1 (hydrochloride) from various sources have been examined. All have been found to be substantially identical in form and X-ray patterns. A very slight difference in optical properties may, however, point to the existence of a variable amount of impurity in solid ...
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  • 3
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 131 (1933), S. 582-583 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] WE have been trying to devise more precise physical criteria for the recognition of biologically important molecules. Obviously, the only ultimate test for such a molecule is its action on living organisms. Physical tests can, however, be used as a guide to decide whether it is worth while to ...
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  • 4
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 132 (1933), S. 172-172 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN the growth of the eye muscles of plaice, I have made an observation which may concern the general problem of muscular development. When transverse sections were taken of the head of a young plaice 4 cm. long, its internal rectus was seen to consist of 42 distinct fibres. Similar sections ...
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  • 5
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 132 (1933), S. 523-523 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] WE have just received NATURE of June 3 and 17, containing letters by Messrs. Schafer and Goodall, and Appleton, Ratcliffe and White on the fine-structure of the ionosphere as observed in the United States and Great Britain. A series of experiments made in Australia in September and October 1932 ...
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  • 6
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 132 (1933), S. 277-277 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] DURING the past three years a very serious reduction in the growth of Zostera marina has taken place on the Atlantic coast of North America. Practically the whole coast-line from New Brunswick to North Carolina is affected and in some areas the reduction amounts to its total disappearance. A ...
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  • 7
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 131 (1933), S. 129-130 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] OF recent years considerable attention has been focused on the behaviour of insulation under electrical stresses of very short duration. The importance of these studies need not be emphasised; suffice it to say that investigations in conjunction with the cathode ray oscillograph on all forms of ...
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  • 8
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 132 (1933), S. 751-751 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The following preliminary optical examinations have been made. Chrysene crystallised in monoclinic plates showing the forms (001), (110) and (100). There is a marked tendency to twin on the c face. (010) is the optic axial plane with γ making 10° to the c axis in the obtuse angle. The ...
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  • 9
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 132 (1933), S. 747-747 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE β-ray activity of radioactive bodies has until now proved to be a very baffling problem. The points at issue are summarised in Gamow's “Constitution of Atomic Nuclei”, etc. (pp. 52–54), and in “Radiations from Radioactive Bodies” by Rutherford, Chadwick and Ellis (p. 385). They are also ...
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  • 10
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 132 (1933), S. 317-318 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] I HAVE investigated some of the phenomena mentioned by Mr. J. H. Coste1 and Dr. S. C. Blacktin2 under this heading. There appear to be two distinct actions concerned: (a) The ‘Blacktin effect’3, consisting of periodic concentric light and dark zones, ...
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