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  • 11
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 156 (1945), S. 721-721 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE publication of the note by Dr. Julian Huxley prompts me to record some observations of a similar phenomenon in 1944. At the beginning of October flowering was noticed on a tree of Aesculus hippocastanum at Twickenham, Middlesex, in circumstances similar to those described by Dr. ...
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  • 12
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 128 (1931), S. 1078-1078 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] AFTER reading the letter from Dr. R. C. Menzies in NATURE of Nov. 28, I wrote to him stating what I believe to be the cause of the orientation of the growing crystals at the liquid surface, and it is at his suggestion (letter dated Nov. 30) that I submit this note for publication. The ...
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  • 13
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 127 (1931), S. 708-708 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] I HAVE for some years been investigating the action of drugs on mammalian spermatozoa, under the auspices of the Birth Control Investigation Committee. Finding that certain drugs seemed to stimulate sperms to higher activity, I have recently made a special study of this problem. I have used ...
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  • 14
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 126 (1930), S. 279-279 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE interesting observation recorded by Dr. C. J. Smithells in Nature of July 26 is not new. During the course of a long series of experiments on ‘metal colouring’ at the Birmingham Technical College about thirty years ago, it was found that copper articles, which had been coloured by immersion ...
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  • 15
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 164 (1949), S. 1093-1094 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] DURING the long period of drought and abnormally high temperatures of June and early July 1949, many bushes of Euonymus japonicus in the Bristol area were observed to possess a white incrustation on the upper surface of the leaves. In cases of weakly growing bushes, almost all leaves were ...
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  • 16
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 164 (1949), S. 1049-1050 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] MOLECULES of the type of symm-dibenzcyclo-octadiene (I) are probably able to exist in two stereoisomeric forms, a rigid trans form (Ia), and a mobile cis form (Ib) which can assume a variety of configurations. The two would be interconvertible only by breaking and reforming a C—C bond. This ...
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  • 17
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 164 (1949), S. 745-745 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] MICROSCOPIC findings of Baker and his collaborators1 have repeatedly confirmed the observation of Henneberg2 that the microbial decomposition of carbohydrates in the gastro-intestinal tract may be accompanied by extensive synthesis of iodophile material within the ...
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  • 18
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 163 (1949), S. 732-732 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE examination of different species or mutants of moulds calls for a simple and compact apparatus in which fermentations can be conducted in large numbers. The ‘shaken flask’ technique1 has proved of great value, but even this requires a good deal of space if many tests are to ...
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  • 19
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 163 (1949), S. 282-282 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE introduction of a technique for cutting ultrathin sections of biological tissue with the conventional microtome1 has also made feasible the sectioning of isolated cells for the electron microscope. Bacterial cells were chosen as a first example because of convenient size, ...
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  • 20
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 161 (1948), S. 770-771 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE existence of pollen dimorphism in the genus Armeria was discovered by Kulczyński1 during the investigation of Dryas-containing beds near Przemyśl in Poland. Iversen2 showed that in living European material of A. maritima (Mill.) Willd., plants with Type A and ...
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