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  • Springer  (69)
  • Nature Publishing Group  (6)
  • Oxford University Press
  • 1945-1949  (75)
  • 1
    Electronic Resource
    Electronic Resource
    Zum Problem des Stoffwechsels der Brenztraubensäurein vivo (1948)
    Springer
    Cellular and molecular life sciences 4 (1948), S. 31-31 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Following intravenous injection of pyruvic acid (PA) in the form of the sodium salt in the normal rabbit the level of PA in the blood rises, falling again to the initial level after 60 minutes. In the case of the alloxandiabetic animal the elimination of PA administered in equal doses is markedly retarded. If animals are used that suffer from a progredient alloxan diabetes leading to death in coma, an increased endogenous hyperpyruviæmia can be demonstrated. Insulin plays no part in the regulation of PA metabolism; through the application of aneurin, however, one succeeds in enabling the organism to make use of PA. A separate report will deal with the complex relations holding in endogenous hyperpyruviæmia in coma.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02164291
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  • 2
    Electronic Resource
    Electronic Resource
    Candida (Nectaromyces) Reukaufii als Fettbildner (1948)
    Springer
    Archives of microbiology 14 (1948), S. 113-127 
    Details
    ISSN: 1432-072X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Zusammenfassung Die in Blütennektarien vorkommende Candida (Nectaromyces) Reukaufii verändert bei Lüftungskultur ihre Form völlig. Statt der dort vorhandenen „Kreuzform” treten Sproßzellen auf (nur bei gewissen Stämmen werden auch in Kultur noch Kreuzzellen gebildet), die unter geeigneten Bedingungen stark verfetten und ein dem Olivenöl ähnliches Öl enthalten. Diese Bedingungen sind: Gute Versorgung mit Wirkstoffen (in erster Linie Biotin), dürftige Ernährung mit Stickstoff, sehr kräftige Lüftung, p h-Wert nicht unter 5 bis 4,5. Es werden dann Fett-Koeffizienten bis zu 15 (gelegentlich noch wenig darüber) erzielt. Als Wirkstofflieferanten können Molke und die verschiedenartigsten Pflanzenextrakte herangezogen werden, als Zuckerquellen Holzzucker und Rübenzucker; Xylose wird ebenfalls zur Fettbildung verwertet. Die Begleiterscheinungen guter Fettbildung sind: Hohe absolute Trockensubstanzbildung, hoher ökonomischer Koeffizient, geringer prozentiger Eiweißgehalt und geringer Eiweiß-Koeffizient. Fett- und Eiweiß-Stoffwechsel verlaufen in diesem Sinne stets gegensätzlich. Die Fettbildung schließt sich an die vollendete Eiweißbildung an, ist somit ein Spätstadium der Entwicklung, das durch die geeigneten Kulturbedingungen offenbar erzwungen wird.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00446582
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  • 3
    Electronic Resource
    Electronic Resource
    Relation Between Fountain Pressure and Heat Current in Helium II (1948)
    [s.l.] : Nature Publishing Group
    Nature 162 (1948), S. 67-68 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Allen and Reekie1 directed attention to the fact that the fountain-pressure difference ΔP at the ends of a narrow slit or capillary produced by a temperature difference is, in the absence of mass flow, exactly proportional to the heat current W appearing simultaneously with the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/162067b0
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  • 4
    Electronic Resource
    Electronic Resource
    Cultivation of the Erythrocytic Form of Plasmodium gallinaceum in Tissue Cultures of Embryonic Chicken Brain (1947)
    [s.l.] : Nature Publishing Group
    Nature 160 (1947), S. 155-156 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN previous experiments a method was found for the cultivation of the exoerythrocytic form of Plasmodium gallinaceum in tissue cultures of embryonic chicken brain. It was found that proliferation of the parasites in tissue culture cells is very slow, and that the initial stages are difficult to ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/160155b0
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  • 5
    Electronic Resource
    Electronic Resource
    Constitution of ‘Pure’ Cellulose (1949)
    [s.l.] : Nature Publishing Group
    Nature 164 (1949), S. 786-787 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE word ‘cellulose’ possesses two connotations: in a technical sense it denotes products obtained by certain processes from vegetable material; in a chemical sense it is commonly used for a linear high-molecular polysaccharide composed solely of glucose residues linked by α 1-4 glucosidic ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/164786b0
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  • 6
    Electronic Resource
    Electronic Resource
    Fibrous Proteins (1949)
    [s.l.] : Nature Publishing Group
    Nature 164 (1949), S. 33-34 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Rubber-like Properties of Hair Keratin IT follows from the classical work of Joule 1 that the restoring force of stretched rubber is due to thermal motion. Meyer, y. Susich and Valk 2 showed for rubber at 100–300) per cent extension that the force at constant extension is proportional to the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/164033a0
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  • 7
    Electronic Resource
    Electronic Resource
    Classification of Fibrous Proteins (1949)
    [s.l.] : Nature Publishing Group
    Nature 164 (1949), S. 34-35 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fibrous proteins have been classified by Astbury1 into two groups, the keratin–myosin–fibrinogen group and the collagen group. The first group exhibits ‘long-range’ elasticity, which is attributed to attractive forces tending to establish a special folding of the protein chains in the contracted ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/164034b0
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  • 8
    Electronic Resource
    Electronic Resource
    Contingency (1949)
    Springer
    Synthese 〈Dordrecht〉 8 (1949), S. 73-90 
    Details
    ISSN: 1573-0964
    Source: Springer Online Journal Archives 1860-2000
    Topics: Natural Sciences in General , Philosophy
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00485890
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  • 9
    Electronic Resource
    Electronic Resource
    Purification et cristallisation de l'α-amylase de salive (1947)
    Springer
    Cellular and molecular life sciences 3 (1947), S. 455-455 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The crystallization and recrystallization of human salivary α-amylase are described.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02148809
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  • 10
    Electronic Resource
    Electronic Resource
    Le degré de polymérisation de l'amylose, de l'amylopectine et du glycogène (1947)
    Springer
    Cellular and molecular life sciences 3 (1947), S. 370-371 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary A colorimetric method based on the reducing power of the aldehydic end group has been developed in order to determine the M. W. of polysaccharides. It has been found that corn amylose contains chain molecules of much higher degree of polymerization than potato amylose.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02154722
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