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  • Nature Publishing Group  (46)
  • Springer Science + Business Media
  • 1940-1944  (46)
  • 1940  (46)
  • 1
    Electronic Resource
    Electronic Resource
    Parahydrogen Conversion on Tungsten (1940)
    [s.l.] : Nature Publishing Group
    Nature 146 (1940), S. 401-402 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THIS reaction1 has been reinvestigated using a reaction tube containing a second short filament adjacent to the catalyst filament, so that adsorbed films on the latter might be detected by a measurement of their contact potential2. In this way it was shown that the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/146401d0
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  • 2
    Electronic Resource
    Electronic Resource
    Origin of the Frow Remedy for Acarine Disease of Honey Bees (1940)
    [s.l.] : Nature Publishing Group
    Nature 145 (1940), S. 824-824 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN 1927, Mr. R. W. Frow, of Wickenby, Lincolnshire, introduced the use of the remedy (since known by his name) as a cure for acarine disease. Mr. Frow informs one of us (A. D. B.) that he has no record of the origin of the formula, but believes that he read of it in a newspaper as a means of ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/145824b0
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  • 3
    Electronic Resource
    Electronic Resource
    The Possibility of Detecting a Doubly-Charged Proton by the Photographic Method (1940)
    [s.l.] : Nature Publishing Group
    Nature 146 (1940), S. 777-777 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] BHABHA1 has recently shown, on theoretical grounds, that there probably exists a proton having a double charge. Such a particle might be expected to occur in the nuclear explosions produced by cosmic rays, and it has been suggested that the most likely way of detecting it would ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/146777a0
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  • 4
    Electronic Resource
    Electronic Resource
    Energy and Entropy of Extension and Spreading of Mobile Monolayers (1940)
    [s.l.] : Nature Publishing Group
    Nature 146 (1940), S. 406-406 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THERMODYNAMICS reveals in two-dimensional systems a peculiar state of matter in which an extremely large amount of heat is required to increase the distance between the molecules by about thirty-five per cent without a change of temperature or of state. In three-dimensional systems at ordinary ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/146406a0
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  • 5
    Electronic Resource
    Electronic Resource
    A Possible Case of Polyploidy in a Prosobranch Mollusc (1940)
    [s.l.] : Nature Publishing Group
    Nature 146 (1940), S. 368-368 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN his recent useful summary in NATURE of July 27, on evidence for polyploidy in hermaphrodite groups of animals, Dr. M. J. D. White remarks that in the pulmonate molluscs (Helix pomatia possibly excepted) there is no evidence of polyploidy. Dr. White will therefore be interested in a possible ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/146368a0
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  • 6
    Electronic Resource
    Electronic Resource
    Colour Vision and Chromaticity Scales (1940)
    [s.l.] : Nature Publishing Group
    Nature 146 (1940), S. 155-158 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] COLOUR VISION IT is no easy matter to assess the value of recent additions to our knowledge about colour and colour vision. So much fundamental information had been recorded twenty-five or fifty years ago by Konig, Abney, Helmholtz, v. Kries, Hering and other pioneers, that modern work appears at ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/146155a0
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  • 7
    Electronic Resource
    Electronic Resource
    Sulphanilamide as a Specific Inhibitor of Carbonic Anhydrase (1940)
    [s.l.] : Nature Publishing Group
    Nature 146 (1940), S. 164-165 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] CARBONIC anhydrase which catalyses the reversible reaction H2CO3 ⇄ CO2 + H2O is present in large concentrations in the red blood corpuscles and some cells of gastric mucosa of mammals. This enzyme plays an important part in accelerating the carbon ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/146164a0
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  • 8
    Electronic Resource
    Electronic Resource
    Radiation and ‘Stuffiness’ (1940)
    [s.l.] : Nature Publishing Group
    Nature 146 (1940), S. 62-62 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] WHILE difficult to define, the sensation of ‘stuffiness’ is easily recognized subjectively by everyone. Since the sensation can be caused by overheating, it is essential in work on stuffiness to make sure that the human subjects of the experiment are comfortable as regards warmth. ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/146062a0
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  • 9
    Electronic Resource
    Electronic Resource
    Depth of Focus of Microscope Objectives (1940)
    [s.l.] : Nature Publishing Group
    Nature 145 (1940), S. 1018-1019 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IT is usually assumed that the depth of focus, t, of a well-corrected microscope objective is given by one or other of the following formulæ: ... where N is the refractive index of the medium through which the light travels, λ the wave-length of the light used, and N.A. the numerical aperture ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/1451018b0
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  • 10
    Electronic Resource
    Electronic Resource
    Crystal Structure of Phosphorus Pentabromide (1940)
    [s.l.] : Nature Publishing Group
    Nature 145 (1940), S. 971-971 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IT has been shown1 that phosphorus pentachloride has an ionic type of crystal structure which is tetragonal and contains [PCl4]+ and [PCl6]− groups. Phosphorus pentabromide is entirely different in crystalline form. It is ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/145971a0
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