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  • 1
    Electronic Resource
    Electronic Resource
    Sex Mechanism in Coccinia indica Wight and Arn. (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 330-331 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A careful examination of the somatic complement in diploid male (Fig. I,a) and female (Fig. 1,b) and of meiotic complement in pollen mother cells has definitely established that male of C. indica is the heterogametic sex with XY type of sex-chromosomes. Of this, Y is bigger than X while the latter ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/170330a0
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  • 2
    Electronic Resource
    Electronic Resource
    A Simple Rotating-Cell Double-Beam Unit for Spectrometers (1952)
    [s.l.] : Nature Publishing Group
    Nature 169 (1952), S. 1108-1108 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Polystyrene sheet was chosen as our first test material for ease of manipulation. This choice was particularly unfortunate, since the wave-lengt'hs of the strong absorption bands of this material do not fall near those of strong water-vapour absorption. It is for this reason, together with the low ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/1691108a0
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  • 3
    Electronic Resource
    Electronic Resource
    Absorption of Ultrasonics in Liquids from Thermal Considerations (1950)
    [s.l.] : Nature Publishing Group
    Nature 166 (1950), S. 828-829 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The experiments were conducted with a quartz plate having the fundamental at 420 kc./sec. placed in the liquid contained in a double-walled calorimeter. The usual corrections for the pronounced dielectric heating of the liquid and for radiation loss were made. Seven organic liquids were studied and ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/166828b0
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  • 4
    Electronic Resource
    Electronic Resource
    Volume Rectification in Zincite (1951)
    [s.l.] : Nature Publishing Group
    Nature 168 (1951), 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] The zincite crystal cut in the form of a cube was mounted between two plane electrodes of large contact area pressed tightly against the opposite faces. Having applied a constant radio-frequency voltage from a tuned circuit to the electrodes, the rectified curre.it was measured by a suitably ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/168162c0
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  • 5
    Electronic Resource
    Electronic Resource
    A Simple Rotating-Cell Double-Beam Unit for Spectrometers (1952)
    [s.l.] : Nature Publishing Group
    Nature 169 (1952), S. 748-749 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] By mounting a pair of absorption cells in a suitable holder in front of the entrance slit of the monochromator, it is possible to make the cells rotate at such a speed that the radiation beam passes into the monochromator with a chopping frequency equal to vc. In this type of double-beam system, it ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/169748a0
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  • 6
    Electronic Resource
    Electronic Resource
    Paper Chromatography of Phosphoric Esters (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 800-801 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Upward migration at 4 C. on acid-washed2 paper is used in a similar manner to Bandurski and Axelrod, but the solvents used (Table 1) give higher R p values and shorter running times than Hanes and Isherwood's mixtures, and tend to give smaller spots than Bandurski and Axelrod's mixtures. R p ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/170800a0
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  • 7
    Electronic Resource
    Electronic Resource
    A Trigonometric Series used in Physical Problems (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 308-309 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The series concerned is: v sin(n n -f 9 J.(0,p; x), say, 0 〈 x 〈 w, and 〉4(0,9; x) can be expressed as -9 [ (6,2 ) + (9,2a?)], where n -f 0 The transformations for c(0,a?) and s(0,#) were obtained by G. H. Hardy4. Putting 0 = 9 and taking the sum of.A (0,0; x) and A(0, 0; x), one ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/171308b0
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  • 8
    Electronic Resource
    Electronic Resource
    Nature of Heinz Bodies (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 84-85 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Electron micrographs made of erythrocytes containing Heinz bodies, however, cast some doubt on the latter interpretation. Thus, the inclusion bodies appear as unusually opaque structures (Fig. 1), similar to those shown by JTung10 earlier. The electron micrographs strongly suggest that the Heinz ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/171084a0
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  • 9
    Electronic Resource
    Electronic Resource
    Nucleic Acids of Rickettsiæ (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 846-847 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] We have recently analysed the deoxyribonucleic acid of another rickettsia from the same host. Deoxyribonucleic acid was isolated2 from epidemic typhus rickettsise (R. prowazeki) grown in chick yolk-sac endothelium, and the purine and pyrimidine bases estimated3 after hydrolysis in perchloric acid ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/170846a0
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  • 10
    Electronic Resource
    Electronic Resource
    Proline and Hydroxyproline in Leaves (1952)
    [s.l.] : Nature Publishing Group
    Nature 170 (1952), S. 579-580 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fresh leaves were extracted with ethyl alcohol by blending 20-gm. portions with 80 ml. of alcohol (final concentration, 75 per cent) in a Waring blendor for about 5 min. After centrifuging, the alcohol extract was well shaken with three times its volume of chloroform and again centrifuged. The ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/170579b0
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