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  • 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
    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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  • 3
    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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  • 4
    Electronic Resource
    Electronic Resource
    Mechanism of Decomposition of Hydrogen Peroxide by Catalase (1939)
    [s.l.] : Nature Publishing Group
    Nature 144 (1939), S. 787-788 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] WE have recently suggested1 that the decomposition of hydrogen peroxide by catalase is brought about by thesuccessive reduction of the catalase iron by the peroxide and its re-oxidation by molecular oxygen; the reaction proceeding accordingto the following equations: ... The ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/144787b0
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  • 5
    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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  • 6
    Electronic Resource
    Electronic Resource
    The Meson and Cosmology (1939)
    [s.l.] : Nature Publishing Group
    Nature 144 (1939), S. 548-548 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The mean life τ0 (τ0 ∼ 2.5 × 10−6 sec.) of a meson at rest gives us a new fundamental constant of the dimension of time which lies intermediate between the ‘atomic constant’ ... and the ‘cosmological constant’ t0 (t0 ∼ 2 × ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/144548a0
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  • 7
    Electronic Resource
    Electronic Resource
    Effect of Tube-Length on the Visibility of Dust Particles with an Oil-immersion Objective (1939)
    [s.l.] : Nature Publishing Group
    Nature 144 (1939), S. 327-327 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] WHEN a well-corrected oil-immersion objective is used to examine dust particles mounted in a medium such as Canada balsam, of similar refractive index to the oil, the finer particles will give a very similar image on either side of the correct focus, provided the objective is used at the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/144327a0
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  • 8
    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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  • 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
    Reduction of the Ctenidia in the Lamellibranchia (1939)
    [s.l.] : Nature Publishing Group
    Nature 144 (1939), S. 206-206 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The ctenidia of a typical lamellibranch are each composed of two demibranchs arranged one on each side of the ctenidial axis. In three families, however, the Lucinidæ, the Montacutidæ and the Teredinidæ, the ctenidium is composed of one demibranch only. A list of such lamellibranchs found in ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/144206a0
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