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  • 1
    Electronic Resource
    Electronic Resource
    Constitution of Vitamin C (1933)
    [s.l.] : Nature Publishing Group
    Nature 131 (1933), S. 274-275 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN our first communication1 we proposed the formulation of vitamin C as a furane- or cyclopentane-derivative. In consideration of further investigations which we have made, we now consider the furane type of structure (i and ii) well established. This conclusion rests upon the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/131274b0
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  • 2
    Electronic Resource
    Electronic Resource
    Assimilation of Minerals by Higher Plants (1963)
    [s.l.] : Nature Publishing Group
    Nature 197 (1963), S. 843-846 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] AT the present time there are sixteen elements which are known to be required for the growth and development of higher green plants: carbon, hydrogen, oxygen, potassium, calcium, magnesium, nitrogen, phosphorus, sulphur, boron, chlorine, copper, iron, manganese, molybdenum and zinc. The first nine ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/197843a0
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  • 3
    Electronic Resource
    Electronic Resource
    Successful Development of Chick Embryos Nourished by Yolk-Sac Perfusion with Calcium-Low Media (1963)
    [s.l.] : Nature Publishing Group
    Nature 197 (1963), S. 257-259 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE abundant supply of yolk and white in the hen's egg hampers direct study of chick-embryo nutrition. In order to remove yolk nutrients and maintain essentially normal relationships between the embryo, its membranes, and the shell, techniques were devised first to replace the yolk of three-day ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/197257a0
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  • 4
    Electronic Resource
    Electronic Resource
    Antenatal Sex Determination (1956)
    [s.l.] : Nature Publishing Group
    Nature 177 (1956), S. 330-330 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Since Barr el al.1, in 1949 in Nature, described morphological sex differences of the nerve cell nuclei of cats, their observations have been repeated on several human and animal cell types. The observation that the cell nuclei of the amniotic membrane in cats2 and of the oral epithelium of newborn ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/177330a0
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  • 5
    Electronic Resource
    Electronic Resource
    Action Potentials from Internal Laryngeal Muscles during Phonation (1956)
    [s.l.] : Nature Publishing Group
    Nature 177 (1956), S. 340-341 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] fig. 1 (^4) Subject A. H.s 64 years; left m.thyreo-arytaenoideus internus, intonation of 'e', frequency 265 c./s. (a) Directly recorded action potentials ; (b) mean action potential amplitude ; (c) voice recorded on microphone (B) Subject C, 8., 55 years; right m.thyreo-arytaenoideus internus, ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/177340a0
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  • 6
    Electronic Resource
    Electronic Resource
    Scientific Appraisal of Singing Voices (1954)
    [s.l.] : Nature Publishing Group
    Nature 173 (1954), S. 574-574 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] WHILE it has long been possible to describe exactly the 'spectrum' of voices in speech, no detailed knowledge has hitherto been available about the spectrum of the trained singing voice, especially the timbre. In earlier investigations, the physical conditions were not exactly defined1, and in ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/173574a0
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  • 7
    Electronic Resource
    Electronic Resource
    Production of Bacterial Mutants with Nitrous Acid (1959)
    [s.l.] : Nature Publishing Group
    Nature 183 (1959), S. 1829-1830 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Nitrous acid inactivates bacterial cells, reducing the ability of a suspension to form colonies. In the experiments described here, the rate of inactivation varied with differences in the state of metabolism of the cells. Those with active metabolism gave higher rates of inactivation per unit time ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/1831829a0
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  • 8
    Electronic Resource
    Electronic Resource
    Adrenocorticotropic Hormone in the Pituitary Gland of the Whale (1951)
    [s.l.] : Nature Publishing Group
    Nature 167 (1951), S. 691-692 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Attempts to isolate a pure preparation of the adrenocorticotropic hormone of whale pituitaries according to the method of Fishman4 resulted in much loss of active material; furthermore, the activity of the final product was not considerably increased over that of the reprecipitated hormone ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/167691b0
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  • 9
    Electronic Resource
    Electronic Resource
    A single methyl group prevents the mischarging of a tRNA (1994)
    [s.l.] : Nature Publishing Group
    Nature structural biology 1 (1994), S. 580-582 
    Details
    ISSN: 1072-8368
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Medicine
    Notes: [Auszug] Sir — Because of the structural similarity of tRNAs, expression of their aminoacylation identity1,2 requires rejection of non-cognate tRNAs by aminoacyl-tRNA synthetases. It has been shown with yeast tRNAAsp that negative discrimination prevents its mischarging by arginyl-tRNA synthetase ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/nsb0994-580
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  • 10
    Electronic Resource
    Electronic Resource
    Hydrogenation of Vitamin B 1 (1936)
    [s.l.] : Nature Publishing Group
    Nature 138 (1936), S. 1097-1098 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] WHEN treated with platinum-black or with hydro-sulphite, vitamin B1 is easily reduced. Crystalline preparations from Hoffmann-La Roche and from I. G. Farben were used. They gave identical results. Hydrogenation with platinum-black was measured in Warburg-Barcroft manometers. In ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/1381097b0
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