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  • Articles: DFG German National Licenses  (57)
  • 1935-1939  (21)
  • 1930-1934  (36)
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  • Articles: DFG German National Licenses  (57)
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  • 1
    Electronic Resource
    Electronic Resource
    Radioactivity of Potassium (1934)
    [s.l.] : Nature Publishing Group
    Nature 134 (1934), S. 377-377 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SOME time ago one of us attacked the problem of the radioactivity of potassium by carrying out a partial separation of its isotopes and determining the atomic weight and the radioactivity of the ‘heavy’ fraction obtained. The fact that the ‘heavy’ fraction was found to be more active than the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/134377a0
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Lead Content of Rocks. (1931)
    [s.l.] : Nature Publishing Group
    Nature 128 (1931), S. 1038-1039 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN recent years various geochemical problems have arisen which make it important that our scanty knowledge of the lead content of rocks should be amplified and made more precise. To this end we have determined the lead in a series of samples, representing in all about 220 rocks, some of which ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/1281038a0
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Quantitative Analysis by X-Rays. (1930)
    [s.l.] : Nature Publishing Group
    Nature 125 (1930), S. 776-777 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN their interesting letter to NATURE of April 5, p. 524, Prof. T. H. Laby and Mr. C. E. Eddy agree with many of the statements in my address to the British Association, but dissent in some respects from my conclusions. According to their view, I was not sufficiently generous in stating the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/125776b0
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Exchange of Phosphorus Atoms in Plants and Seeds (1937)
    [s.l.] : Nature Publishing Group
    Nature 139 (1937), S. 149-150 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN a letter to NATURE1 we communicated the results of experiments carried out on maize plants using radioactive phosphorus as an indicator of the behaviour of the phosphorus atoms. The results obtained showed unambiguously that the greater part of the phosphorus atoms present in ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/139149a0
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Action of Slow Neutrons on Rare Earth Elements (1936)
    [s.l.] : Nature Publishing Group
    Nature 137 (1936), S. 185-185 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN view of the discrepancy between the values obtained by different workers for the periods and the intensity of radiation emitted by the radio rare earth elements1–5 after neutron bombardment, we carried out a detailed investigation on this subject and also on the absorption of ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/137185a0
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  • 6
    Electronic Resource
    Electronic Resource
    Selective Absorption of Neutrons by Gold (1936)
    [s.l.] : Nature Publishing Group
    Nature 137 (1936), S. 149-150 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Six small gold disks, 15 mm. in diameter and 0.5 mm. thick, were placed in a hole in a cadmium plate and irradiated by slow neutrons, by putting the whole arrangement in a cavity in a large block of paraffin wax, near a radon-beryllium source. On measuring the activities of the successive ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/137149b0
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Atomic Dynamics of Plant Growth (1936)
    [s.l.] : Nature Publishing Group
    Nature 137 (1936), S. 66-67 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SOME years ago, one of us investigated the circulation of lead1 in plants using a radioactive lead isotope as indicator. Recent developments in nuclear chemistry make it possible to prepare radioactive isotopes of several of the light elements which, in contrast with lead, are the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/137066a0
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    Radioactive Indicators in the Study of Phosphorus Metabolism in Rats (1935)
    [s.l.] : Nature Publishing Group
    Nature 136 (1935), S. 754-755 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] RECENT progress in the production of radioactive isotopes by neutron bombardment makes the radioactive isotope of phosphorus 15P32 easily accessible. This isotope, which has a half-life value of 17 days, can be utilised as an indicator of inactive phosphorus in the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/136754a0
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    Paper (German National Licenses)
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  • 9
    Electronic Resource
    Electronic Resource
    Artificial Radioactivity of Dysprosium and other Rare Earth Elements (1935)
    [s.l.] : Nature Publishing Group
    Nature 136 (1935), S. 103-103 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN their pioneer work on artificial radioactivity through neutron bombardment, Fermi and his collaborators announced the discovery of the activity of some of the rare earth elements, namely, of lanthanum, praseodymium, neodymium, samarium and gadolinium. Recently, Sugden1 found ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/136103a0
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  • 10
    Electronic Resource
    Electronic Resource
    Radiopotassium and other Artificial Radio-elements (1935)
    [s.l.] : Nature Publishing Group
    Nature 135 (1935), S. 580-580 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN a letter published in NATURE of January 19, it was shown that the bombardment of scandium with neutrons leads, beside the formation of an active scandium isotope1 20Sc46, to the formation of a new potassium isotope 19K42 ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/135580a0
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    Paper (German National Licenses)
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