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  • Nature Publishing Group  (51)
  • 2020-2023
  • 1970-1974
  • 1965-1969
  • 1945-1949
  • 1935-1939  (51)
  • 1939  (51)
  • 1
    Electronic Resource
    Electronic Resource
    X-Rays and the Cyclol Hypothesis (1939)
    [s.l.] : Nature Publishing Group
    Nature 143 (1939), S. 897-897 
    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 the vector map described by Fankuchen and Riley1 to which Dr. Wrinch has taken exception in her recent letter2 was merely to show that the cyclol C2 skeleton does not contribute anything to the specific character of the observed X-ray ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/143897a0
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  • 2
    Electronic Resource
    Electronic Resource
    Comparing Resistances of Four-Terminal Resistors (1939)
    [s.l.] : Nature Publishing Group
    Nature 144 (1939), S. 982-982 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Two communications regarding the comparison of four-terminal resistances, the first by Mr. Arvon Glynno and a further one by Prof. John Dowling, have recently appeared1 in NATURE. I would like to point out that the method described by Mr. Glynno is already well known and will be found in ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/144982a0
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  • 3
    Electronic Resource
    Electronic Resource
    Synthesis of Coenzymes I and II (1939)
    [s.l.] : Nature Publishing Group
    Nature 144 (1939), S. 943-943 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] DURING the past year, two biological methods for the determination of coenzymes I and II in blood have been reported1,2. Kohn and Klein, using the method described by Kohn, have reported recently the in vitro synthesis of the pyridine coenzymes I and II by human ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/144943a0
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  • 4
    Electronic Resource
    Electronic Resource
    Decomposition of Hydrogen Peroxide by Catalase (1939)
    [s.l.] : Nature Publishing Group
    Nature 144 (1939), S. 1091-1091 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THAT the catalytic decomposition of hydrogen peroxide by catalase requires the presence of molecular oxygen was demonstrated by a number of manometric experiments previously described1. Being, however, well aware of certain difficulties in this kind of work, we have given a ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/1441091a0
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  • 5
    Electronic Resource
    Electronic Resource
    Recent Work on Experimental Parthenogenesis (1939)
    [s.l.] : Nature Publishing Group
    Nature 144 (1939), S. 1036-1038 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IT is proposed here to outline some recent biological and cytological studies in experimental parthenogenesis. The rearing of reproductive parthenogones and parthenogenetic strains after experimental treatment has been achieved only once. The Russian worker, Astaurov1, after subjecting unfertilized ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/1441036a0
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  • 6
    Electronic Resource
    Electronic Resource
    Fission of Uranium under Deuterpn Bombardment (1939)
    [s.l.] : Nature Publishing Group
    Nature 144 (1939), S. 707-707 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SINCE the phenomenon of neutron-induced fission of the uranium and thorium nuclei is now indisputably established, attention may be turned to the possible efficacy of other bombarding particles in this respect. An outline is here presented of evidence suggesting that high-energy deuterons are, ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/144707a0
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  • 7
    Electronic Resource
    Electronic Resource
    A New Technique for the Spreading of Proteins and the ‘Spreading Number’ (1939)
    [s.l.] : Nature Publishing Group
    Nature 144 (1939), S. 629-630 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The ordinary volatile solvents employed for fatty substances cannot be used for the spreading of protein monolayers on the surface of water, since the majority of proteins are soluble only in water. Hughes and Rideal1 have spread proteins directly from the dry crystal, the amount ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/144629b0
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  • 8
    Electronic Resource
    Electronic Resource
    Vitamin B 1 and Acetate Oxidation by Bacteria (1939)
    [s.l.] : Nature Publishing Group
    Nature 144 (1939), S. 633-634 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] It is now known1 that vitamin B1 may be a necessary factor for the growth of bacteria. Bacteria can, however, be grown with minimal amounts of vitamin B1 and such bacteria (for example, Staphy-lococcus aureus) may show enhanced metabolic activities so far as ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/144633b0
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  • 9
    Electronic Resource
    Electronic Resource
    Role of Dietary Choline in Neurohumour Production (1939)
    [s.l.] : Nature Publishing Group
    Nature 144 (1939), S. 376-376 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE lipotropic action of choline1 and the role of cholino in the formation of acetylcholine have not hitherto been studied in the same experimental animals. It seems reasonable to suppose, however, that, in addition to the production of the familiar fatty liver, lack of dietary ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/144376a0
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  • 10
    Electronic Resource
    Electronic Resource
    Deuteron Bombardment of Silver (1939)
    [s.l.] : Nature Publishing Group
    Nature 144 (1939), S. 547-547 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] We have bombarded pure silver with a few microampere-hours of 9 Mv. deuterons from the Cavendish cyclotron and have used a Geiger counter for investigating the radioactive radiations. The activities observed are listed below in order of prominence. (1) A negative electron activity of 2·4 ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/144547a0
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