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  • 1
    Electronic Resource
    Electronic Resource
    Cause of Wear in Sheeps' Teeth (1959)
    [s.l.] : Nature Publishing Group
    Nature 184 (1959), S. 1583-1584 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Our approach is based on the knowledge that opal-phytoliths are secreted within pasture and fodder plants in varying amounts. In fact, practically all the silicon in mature plants is in the form of these solid mineral particles2. Furthermore, we have obtained opal-phytoliths in the faeces of sheep ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/1841583b0
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  • 2
    Electronic Resource
    Electronic Resource
    Influence of the Ambient Medium on the Breakdown Voltage of Sheet Insulating Materials (1958)
    [s.l.] : Nature Publishing Group
    Nature 181 (1958), S. 1726-1726 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] This reasoning was investigated by the measurement of SO-c./s. breakdown voltage of films of cellulose triacetate and polyethylene terephthalate in air over a range of pressures from that corresponding to rough vacuum up to about 8 atmospheres. The electric strength of the air, therefore, was ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/1811726b0
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  • 3
    Electronic Resource
    Electronic Resource
    Vitamin B 12 Distribution between Plasma and Cells (1957)
    [s.l.] : Nature Publishing Group
    Nature 180 (1957), S. 1043-1044 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Citrated or heparinized blood from (a) healthy individuals, (6) patients with untreated pernicious anaemia, and (c) a patient with total gastrectomy was assayed with Euglena gracilis and Ochromonas maUutmensis by methods outlined previously2'3-5. The pernicious aracmia patients were untreated at ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/1801043a0
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  • 4
    Electronic Resource
    Electronic Resource
    Lipid Globules in Cells (1957)
    [s.l.] : Nature Publishing Group
    Nature 180 (1957), S. 947-949 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The course of cytological research would have 1 been very different if chromatin had been as invisible in routine microscopical preparations as lipid globules are, and lipid globules the most evident objects in cells. There has been a curious tendency to disregard lipid globules, or to mention them ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/180947a0
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  • 5
    Electronic Resource
    Electronic Resource
    Expression of Sex in Flowering Plants (1957)
    [s.l.] : Nature Publishing Group
    Nature 180 (1957), S. 614-615 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The greater part of this literature, however, deals with dioecious species of Melandrium, which have furnished the test material for so many other studies of sex-inheritance and expression. Both 'sexes' in these species produce androecial and gynoecial primordia ; but usually only one of these ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/180614a0
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  • 6
    Electronic Resource
    Electronic Resource
    Fine Structure of Tobacco Mosaic Virus (1956)
    [s.l.] : Nature Publishing Group
    Nature 178 (1956), S. 636-637 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The present findings result from a study directed at increasing the visibility of macromolecules in the electron microscope, and in particular from evaporating heavy metal at angles (with respect to the substrate) close to 0 . A sample of the Ul strain4 of tobacco mosaic virus, buffered to pH 6.8 ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/178636a0
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  • 7
    Electronic Resource
    Electronic Resource
    Action of Pepsin on Synthetic Substrates (1956)
    [s.l.] : Nature Publishing Group
    Nature 178 (1956), S. 145-146 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Since Haldane2 has shown that a hydrolysis will follow a logarithmic course when the affinity of one of the products for the enzyme is the same as that of the substrate, experiments on the inhibiting effects of the products were again made. In these experiments it was found that concentrations of ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/178145b0
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  • 8
    Electronic Resource
    Electronic Resource
    Distribution of 5-Carboxymethylhydantoinase (1959)
    [s.l.] : Nature Publishing Group
    Nature 184 (1959), S. 1314-1314 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] dZ-5-Carboxymethylhydantoin-14C was synthesized from orotate-14C as previously described3 with specific activity of 1-9X106 c.p.m./pmole. Enzyme assay was based on the hydrolysis of 5-carboxy-methylhydantoin-14C (3 X 10~4 moles) to carbamylaspartate-14C during 1 hour incubation at 37 C., £〉H ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/1841314a0
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  • 9
    Electronic Resource
    Electronic Resource
    A. or mµ in Electron Microscopy? (1959)
    [s.l.] : Nature Publishing Group
    Nature 183 (1959), S. 416-416 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] It is clear that the last digit is not significant, and indeed this follows from theoretical considerations. It would be unreasonable to express all measurements made with the light microscope in 'decimicrons', but a better case could be made for this than for the use of the angstrom as the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/183416a0
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  • 10
    Electronic Resource
    Electronic Resource
    Electric-breakdown Tracks in ‘Perspex’ (1956)
    [s.l.] : Nature Publishing Group
    Nature 177 (1956), S. 886-887 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] In order to investigate this problem, polythene, 'Perspex', and polystyrene specimens have been broken down between needle-point electrodes in high-quality transformer oil at room temperature, provision being made to short-circuit the breakdown path in the specimen within a few micro-seconds of the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/177886a0
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