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  • 1
    Electronic Resource
    Electronic Resource
    Infra-Red Extinction Coefficients for Amorphous and Crystalline Nylon (1962)
    [s.l.] : Nature Publishing Group
    Nature 195 (1962), S. 1093-1094 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] It was found that these results could be explained on the assumption that the films prepared from formic acid were less crystalline than those subjected to heat treatment and that the peak molar extinction coeffi cient of amorphous nylon is about one-sixth that for crystalline nylon1. Further ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/1951093a0
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  • 2
    Electronic Resource
    Electronic Resource
    Disturbance in the Ionospheric F -Region following the Johnston Island Nuclear Explosion (1959)
    [s.l.] : Nature Publishing Group
    Nature 184.1959, 4688, B.A.32-, (2 S.) 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Here we will describe one of the effects on the ionospheric .F-region. We have 10-min. recordings over the period of the first event and 2-min. recordings over the period of the second event. Prior to both events, ionograms at Rarotonga showed the normal undisturbed night F-region. On August 1, ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/184032a0
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  • 3
    Electronic Resource
    Electronic Resource
    Influence of Liquid Films on Fibre Friction (1955)
    [s.l.] : Nature Publishing Group
    Nature 175 (1955), S. 383-383 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The effect is easily demonstrated for a relatively thick glass fibre adhering to a glass plate by adding water and measuring the adhesion as the water evaporates. With a fibre 0-1 cm. in diameter, values of A up to 2 gm./cm. are readily obtained. The adhesion cannot, however, be measured directly ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/175383a0
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  • 4
    Electronic Resource
    Electronic Resource
    A New Type of Diffusion Cathode (1954)
    [s.l.] : Nature Publishing Group
    Nature 174 (1954), S. 1010-1011 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A new type of cathode combining the features of the impregnated W cathode and the moulded cathode has recently been developed. The cathode is made by preparing a mixture of nickel powder and barium-strontium carbonate powder. A small percentage of an appropriate reducing agent is added to the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/1741010a0
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  • 5
    Electronic Resource
    Electronic Resource
    Chromosome Numbers in the Desmids (1953)
    [s.l.] : Nature Publishing Group
    Nature 172 (1953), S. 592-593 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The majority of these cultures were obtained from the Cambridge Culture Collection of Algae and Protozoa. The numbers preceding cultures from this source are those designated in that collection. The count of n = 18 for Cosmarium botrytis has been previously published by me1, but is included here ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/172592a0
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  • 6
    Electronic Resource
    Electronic Resource
    Estimation of the 9 : 10-Dihydroxystearic Acids and their Acyl Derivatives (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 566-567 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The method of estimation to be described takes advantage of the fact that, under suitable conditions, periodic acid oxidizes the 9 : 10-dihydroxystearic acids almost quantitatively to nonaldehyde and azelaic semialdehyde2, of which the former may readily be isolated by distillation in steam and its ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/171566b0
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  • 7
    Electronic Resource
    Electronic Resource
    The Bent Excited State of Acetylene (1952)
    [s.l.] : Nature Publishing Group
    Nature 169 (1952), S. 1101-1102 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Molecular orbital theory indicates that the lowest electronically excited state to which transition is allowed should be of the described symmetry. The a-bond hybridization is plane-trigonal (as in ethylene or benzene), and there is otherwise one 7u-orbital in the CC-bond for shared electrons, and ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/1691101b0
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  • 8
    Electronic Resource
    Electronic Resource
    Spawning of the Male Salmon Parr ( Salmo salar Linn. juv.) (1952)
    [s.l.] : Nature Publishing Group
    Nature 169 (1952), S. 882-882 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] This year (1951) we have observed apparently normal courting by adult males which had previously been sterilized by ligation of the sperm ducts. The orgasm also appeared normal in every way except that no sperm issued from the adult male, and it was therefore possible to observe whether any ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/169882a0
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  • 9
    Electronic Resource
    Electronic Resource
    Effect of Low Temperatures on Infra-Red Spectra (1950)
    [s.l.] : Nature Publishing Group
    Nature 166 (1950), S. 1029-1029 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] We have subjected these ideas to fairly rigorous test by examining the infra-red spectra of a number of compounds at the temperature of liquid helium (4 K.)2,5,6. In order to interpret these spectra, we have made7 a detailed treatment of resolving power and apparent width, taking into account the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/1661029a0
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  • 10
    Electronic Resource
    Electronic Resource
    Behaviour of Mature Male Salmon Parr, Salmo salar juv. L. (1939)
    [s.l.] : Nature Publishing Group
    Nature 143 (1939), S. 162-163 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN a recent account of early and normal sexual maturity in male salmon parr in the Welsh Dee1, we directed attention to the possibility of these young mature males behaving differently in their river movements from other young parr of the same age, immature males and females. The ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/143162a0
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