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  • Articles  (307)
  • Articles: DFG German National Licenses  (307)
  • 1930-1934  (214)
  • 1920-1924  (93)
  • Medicine  (307)
  • 1
    Electronic Resource
    Electronic Resource
    Use of the Centrifuge in Determining the Density of Small Crystals (1934)
    [s.l.] : Nature Publishing Group
    Nature 134 (1934), S. 809-810 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE accurate measurement of crystal density has recently acquired increased importance, since it is necessary to know this quantity in order to use X-ray methods for determining the molecular weights of unknown chemical substances. But the usual crystallographic methods of density measurement, ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/134809b0
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  • 2
    Electronic Resource
    Electronic Resource
    X-Ray Photographs of Crystalline Pepsin (1934)
    [s.l.] : Nature Publishing Group
    Nature 133 (1934), S. 794-795 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] FOUR weeks ago, Dr. G. Millikan brought us some crystals of pepsin prepared by Dr. Philpot in the laboratory of Prof. The Svedberg, Uppsala. They are in the form of perfect hexagonal bipyramids up to 2 mm. in length, of axial ratio c/a = 2.3 ± 0.1. When examined in their mother liquor, they ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/133794b0
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  • 3
    Electronic Resource
    Electronic Resource
    A New Trio1 from the Urine of Pregnant Mares (1933)
    [s.l.] : Nature Publishing Group
    Nature 132 (1933), S. 102-102 
    Details
    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, ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/132102a0
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  • 4
    Electronic Resource
    Electronic Resource
    Crystal Structure of Vitamin B 1 and of Adenine Hydrochloride (1933)
    [s.l.] : Nature Publishing Group
    Nature 131 (1933), S. 911-912 
    Details
    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 ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/131911b0
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  • 5
    Electronic Resource
    Electronic Resource
    Absorption Spectrum of Vitamin A at Low Temperatures (1933)
    [s.l.] : Nature Publishing Group
    Nature 131 (1933), S. 582-583 
    Details
    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 ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/131582c0
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  • 6
    Electronic Resource
    Electronic Resource
    Growth in Muscle (1933)
    [s.l.] : Nature Publishing Group
    Nature 132 (1933), S. 172-172 
    Details
    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 ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/132172a0
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  • 7
    Electronic Resource
    Electronic Resource
    The Expanding Universe (1932)
    [s.l.] : Nature Publishing Group
    Nature 130 (1932), S. 507-508 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN NATURE of July 2, Prof. Milne has published a very simple and attractive explanation of the phenomenon that has given rise to so much speculation among recent cosmogonists. The sole defect in his clear analysis is that the material particles that form the universe are taken initially to have ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/130507b0
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  • 8
    Electronic Resource
    Electronic Resource
    Literature for Jerusalem University (1921)
    [s.l.] : Nature Publishing Group
    Nature 107 (1921), S. 333-333 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] AT the third annual conference of the Inter-University Jewish Federation held at Oriel College, Oxford, on August 3, 1920, it was unanimously resolved, in response to a request of the Zionist Organisation, to render every possible assistance to all efforts on behalf of the Hebrew University at ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/107333b0
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  • 9
    Electronic Resource
    Electronic Resource
    Isotopes: Their Number and Classification (1921)
    [s.l.] : Nature Publishing Group
    Nature 107 (1921), S. 202-203 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] ONE of the most remarkable characteristics of atoms is their predilection for the number 2 or for even numbers. The nuclei of atoms are now considered to be built up from hydrogen nuclei, which may be called positive electrons or protons. Suppose these to be P in number. Combined with these are ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/107202a0
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  • 10
    Electronic Resource
    Electronic Resource
    Natural History of Porto Santo (1921)
    [s.l.] : Nature Publishing Group
    Nature 107 (1921), S. 10-11 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE Island of Porto Santo, one of the Madeira group, is probably best known to biologists on account of the famous rabbit still found commonly there. Darwin showed that the animal differed conspicuously from the English rabbit, and inferred that it had evolved into a new race since its ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/107010a0
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