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  • Nature Publishing Group  (51)
  • Wiley-Blackwell  (16)
  • 1980-1984
  • 1935-1939  (67)
  • 1939  (67)
  • 1
    Digitale Medien
    Digitale Medien
    X-Rays and the Cyclol Hypothesis (1939)
    [s.l.] : Nature Publishing Group
    Nature 143 (1939), S. 897-897 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [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 ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/143897a0
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  • 2
    Digitale Medien
    Digitale Medien
    Structure of the Dimeric Forms of o- Iso propenyl-phenols (1939)
    [s.l.] : Nature Publishing Group
    Nature 144 (1939), S. 865-865 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] o-HYDROXYisoPROPENYL compounds, for example (1), readily polymerize to dimeric forms on long standing or on treatment with hydrogen chloride1. These dimerides can be distilled under diminished pressure and are generally resinous at ordinary temperature, but they yield well ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/144865a0
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  • 3
    Digitale Medien
    Digitale Medien
    Interpretation of Plant Structure (1939)
    [s.l.] : Nature Publishing Group
    Nature 144 (1939), S. 571-575 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] STRUCTURE AND FUNCTION UNDER the influence of Darwin's concept of 'survival of the fittest', a tendency to assume all structural features to be adaptive was strengthened. It is, of course, essential that the structure of plant organs should enable them to carry out their functions adequately; but ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/144571a0
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  • 4
    Digitale Medien
    Digitale Medien
    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
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [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 ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/144327a0
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  • 5
    Digitale Medien
    Digitale Medien
    Deuteron Bombardment of Silver (1939)
    [s.l.] : Nature Publishing Group
    Nature 144 (1939), S. 547-547 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [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 ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/144547a0
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  • 6
    Digitale Medien
    Digitale Medien
    The Meson and Cosmology (1939)
    [s.l.] : Nature Publishing Group
    Nature 144 (1939), S. 548-548 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [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 × ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/144548a0
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  • 7
    Digitale Medien
    Digitale Medien
    Dipterous Larvæ and Wound Treatment (1939)
    [s.l.] : Nature Publishing Group
    Nature 144 (1939), S. 516-517 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] During the war of 1914–18, W. S. Baer1, in the United States, noticed that when troops wounded in battle had been lying out on the ground unat-tended for some time, their wounds very commonly became infested with larvae of certain kinds of flies. He noticed specially that when ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/144516c0
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  • 8
    Digitale Medien
    Digitale Medien
    A Derived Patterson Analysis of the Skeleton of the Cyclol C 2 Molecule (1939)
    [s.l.] : Nature Publishing Group
    Nature 143 (1939), S. 648-649 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] RECENT publications by Wrinch1, and in particular by Wrinch and Langmuir2, have suggested that the Patterson analyses obtained by Crowfoot3 for air-dried insulin crystals can be interpreted with some precision if one assumes that the basis of the structure of the insulin molecule is the skeleton of ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/143648a0
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  • 9
    Digitale Medien
    Digitale Medien
    Rapid Graphical Analysis of Circuit Performance by the Use of Logarithmic Charts (1939)
    [s.l.] : Nature Publishing Group
    Nature 143 (1939), S. 897-898 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] IN connexion with some recent work, use has been made of charts with log (| impedance |) and log (frequency) as axes, and the properties of this plane have been found to lend themselves to graphical use. The chief properties are: The impedances of the three circuit elements (resistance, ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/143897c0
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  • 10
    Digitale Medien
    Digitale Medien
    Chromosomes of Cimex (1939)
    [s.l.] : Nature Publishing Group
    Nature 143 (1939), S. 78-78 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] THE conclusions drawn from the numbers of chromosomes found during spermatogenesis in Cimex spp.1 require considerable modification as a result of the examination of further material. New evidence of the nature of the variable elements and of their numerical range has given a ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/143078a0
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