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  • 11
    Electronic Resource
    Electronic Resource
    A New Active Constituent of Pyrethrum Flower (1942)
    [s.l.] : Nature Publishing Group
    Nature 150 (1942), S. 153-153 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE pyrethrin content as determined by the chemical process is the only factor that influences the market value of pyrethrum, as it is held that a close relationship exists between the amount of pyrethrin present and the number of insects killed. The results of our experiments (see graph) ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/150153a0
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  • 12
    Electronic Resource
    Electronic Resource
    Quantum Theory and Diffuse X-Ray Reflexions (1942)
    [s.l.] : Nature Publishing Group
    Nature 149 (1942), S. 373-374 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE origin of certain anomalous X-ray reflexions' J. that is to say, intensity maxima the presence of which cannot be explained by the usual diffraction theory, has recently been the subject of investigation in many laboratories. Some account of the work carried out in Great Britain was given at a ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/149373a0
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  • 13
    Electronic Resource
    Electronic Resource
    Family Allowances (1942)
    [s.l.] : Nature Publishing Group
    Nature 149 (1942), S. 656-658 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE subject of family allowances-assistance given in cash rather than in kind, to meet the cost of maintaining children during the period of their dependency-bids fair to become a live political issue. It is now nearly twenty years since Miss Eleanor Kathbone's much-debated book, "The Disinherited ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/149656a0
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  • 14
    Electronic Resource
    Electronic Resource
    Input Impedances of Vacuum Thermo-junctions at Ultra-High Frequencies (1942)
    [s.l.] : Nature Publishing Group
    Nature 149 (1942), S. 668-669 
    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 analysing impedances at ultra-high frequencies using Lecher wires, recently described by Flint and Williams1, has been used to examine a number of thermojunctions the D.C. heater resistances of which varied between 100 and 1,600 ohms. The frequency employed ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/149668b0
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  • 15
    Electronic Resource
    Electronic Resource
    Breakdown of Self-Incompatibility by α-Naphthalene Acetamide (1942)
    [s.l.] : Nature Publishing Group
    Nature 149 (1942), S. 610-610 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SELF-incompatible Petunia, Tagetes, Trifolium repens and Brassica oleracea have been made self-compatible by spraying the flowering plants with a solution of α-naphthalene acetamide1. This new technique has many possibilities to the plant breeder, but without a more complete ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/149610a0
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  • 16
    Electronic Resource
    Electronic Resource
    Absorption of Minimal Doses of β-Carotene by Vitamin A-Deficient Rats (1942)
    [s.l.] : Nature Publishing Group
    Nature 149 (1942), S. 611-611 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] WIDE differences between the theoretically expected and experimentally obtained potencies of pure vitamin A as compared with β-carotene have led to a considerable amount of speculation1,2 on the possible manner of conversion of carotene into vitamin A in vivo. While there is no ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/149611a0
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  • 17
    Electronic Resource
    Electronic Resource
    Dispersion of Cellulose Strands in Cell Walls (1942)
    [s.l.] : Nature Publishing Group
    Nature 149 (1942), S. 580-581 
    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 letter in NATURE1 Prof. Frey-Wyssling directs attention to the importance in cell wall studies of the angular dispersion of the constituent cellulose micelles and refers to my papers as ignoring this property. Cell wall physics is a study in which there is already ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/149580a0
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  • 18
    Electronic Resource
    Electronic Resource
    Advance in Invention: Its Relation to World Peace (1942)
    [s.l.] : Nature Publishing Group
    Nature 149 (1942), S. 542-544 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A YEAR after the outbreak of the present War the results were published of a study of the causes of the failure to preserve peace. The members of the study group are described as mainly officers of international organizations with headquarters at Geneva, meeting unofficially and able therefore to ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/149542a0
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  • 19
    Electronic Resource
    Electronic Resource
    Structure of the Branchiæ of Careinus maenas (1942)
    [s.l.] : Nature Publishing Group
    Nature 149 (1942), S. 472-473 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] NOTHING is known concerning the histology of the branchiæ of Cardnus mænas, except for a brief account using Bouin-fixed material1. By fixation in Champy, whole-mount preparations of strips of a lamella stained in iron alum hæmatoxylin show that a system of branching tube-like ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/149472b0
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  • 20
    Electronic Resource
    Electronic Resource
    A Photographic Method of Estimating the Mass of the Mesotron (1942)
    [s.l.] : Nature Publishing Group
    Nature 149 (1942), S. 302-302 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] WE have described1 a method of estimating the mass of secondary particles with heavy ionization tracks in photographic emulsion which are due to some component of the cosmic ray. The method is based upon the determination of the kinetic energies of these particles and of protons ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/149302a0
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