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  • 1
    Electronic Resource
    Electronic Resource
    Intensities of Discrete Radio Sources in Cygnus and Cassiopeia at 22.6 Mc.s. (1954)
    [s.l.] : Nature Publishing Group
    Nature 173 (1954), S. 819-820 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Recordings of the intensity of the discrete radio sources in Cygnus and Cassiopeia were made between June and November 1953. Ionospheric conditions frequently caused violent amplitude fluctuations, and at times there were not only severe decreases of intensity but also increases from the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/173819a0
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  • 2
    Electronic Resource
    Electronic Resource
    Radiation-Widths of Nuclear Energy-Levels (1954)
    [s.l.] : Nature Publishing Group
    Nature 173 (1954), S. 942-943 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE radiation-widths of levels of low excitation can, if sufficiently narrow (~ 10~6 eV.), be determined directly from the life-time of the state. The vast majority of levels, however, have much greater widths, which are often obtainable from properties of the nuclear reactions in which the levels ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/173942a0
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  • 3
    Electronic Resource
    Electronic Resource
    Effects of Alkyl Groups in Nucleophilic Substitution (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 301-302 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The polar requirements of the unimolecular mechanism (reaction 9) are clear. The rate-determining process consists of the separation of the expelled group with the electrons of the C X bond, and it should be facilitated unconditionally by electron release to the reaction centre. Consistently, it is ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/171301a0
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  • 4
    Electronic Resource
    Electronic Resource
    Abdominal Mechano-Receptors in Dytiscus and Locusta (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 531-532 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] DURING an investigation of the nervous control of respiratory movements in the water beetle Dytiscus marginalia, electrophysiological evidence has been obtained for the existence of sense organs responsive to these movements. The abdominal movements consist of an active expiratory phase in which ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/170531a0
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  • 5
    Electronic Resource
    Electronic Resource
    Triphenylchloroethylene, Tritylmethyl Chloride and Related Halides (1951)
    [s.l.] : Nature Publishing Group
    Nature 167 (1951), S. 986-987 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Tritylmethyl chloride (m.p. 101-5 ) was obtained in good yield from triphenylmethyl sodium and methylene chloride in ethereal solution. Tritylmethyl bromide (m.p. 93 ) was prepared similarly, but in poor yield. An attempt to obtain the iodide (see below) by the same method gave triphenylmethane and ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/167986b0
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  • 6
    Electronic Resource
    Electronic Resource
    ‘Giant’ Fibres in Dragonfly Nymphs (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 87-88 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fig. 1. Anax. Histogram to show sizes and frequencies of nerve fibres in the right and left commissures between the 3rd and 4th abdominal ganglia. The number of fibres is plotted on a logarithmic scale Histologically, the 'giant' fibres are of interest because they are surrounded by a definite ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/171087b0
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  • 7
    Electronic Resource
    Electronic Resource
    A Test of the Interpretation of X-Ray Patterns of Micelles (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 1017-1017 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] In the first place, their multilayers, built upon the chrome plate from surface films, have dimensions parallel to the chrome surface far greater than the corresponding dimensions of lamellar micelles as commonly postulated in soap solutions. This will greatly modify their distribution of ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/1651017a0
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  • 8
    Electronic Resource
    Electronic Resource
    A Synthesis of Sparteine (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 35-36 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] In each case the last step is thought to proceed through the stages : reduction to an alcohol-dehydration-reduction. The condensation reactions suggested are obviously of the same kind as those proposed by Robinson for other alkaloids. Moreover, they clearly point to a close relationship between ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/165035a0
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  • 9
    Electronic Resource
    Electronic Resource
    Resistance to a Plant Disease associated with High Glucose Content of Leaf (1953)
    [s.l.] : Nature Publishing Group
    Nature 172 (1953), S. 316-316 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Clouston has found (private communication from Dr. II. L. Knight) that leaf extracts of blackarm-resistant cottons had a stronger reducing action on Fehling solution and considered that this might be associated with the mechanism of blackarm resistance. We have confirmed this for synthesized ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/172316a0
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  • 10
    Electronic Resource
    Electronic Resource
    A New View of the Arylhydroxylamine Rearrangement (1951)
    [s.l.] : Nature Publishing Group
    Nature 168 (1951), S. 909-910 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] This communication presents the view that there are actually at least two classes of rearrangements among the examples formulated above ; that most of them are, indeed, electrophilic rearrangements ; but that the arylhydroxylamine rearrangement, in particular, exemplifies the opposite process, a ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/168909a0
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