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  • 1990-1994  (5)
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Materialart
Erscheinungszeitraum
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  • 1
    Digitale Medien
    Digitale Medien
    Ground rules (1992)
    [s.l.] : Nature Publishing Group
    Nature 357 (1992), S. 373-374 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] "WHERE there is no vision, the people perish"; or, as a marginal note in the better bibles puts it, "will become unruly". Many recent events justify the suggested variant, but the first is more relevant in the present context. That biblical exegisis comes naturally because ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/357373a0
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Boring sperm (1991)
    [s.l.] : Nature Publishing Group
    Nature 351 (1991), S. 704-704 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] SIR - By using the title "Sperm whale", Daedalus' research team emphasizes that it thinks only of aggression as a factor in sperm competition1. But the race is not to the swift. Having reached the neighbourhood of an ovum, sperm must bore through a mass of cumulus cells. When one gets into the ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/351704c0
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    The career of F. W. Twort (1990)
    [s.l.] : Nature Publishing Group
    Nature 343 (1990), S. 504-504 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] SIR-By using the title 'What happened?' to R. A. Slepecky's letter1, you seem to be inviting further comment on the career of F. W. Twort. His work after the discovery of bacteriophage in 19152, his ideas about biological replication and the relationship of organisms to one another, and his ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/343504a0
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 4
    Digitale Medien
    Digitale Medien
    Logic and luck (1993)
    [s.l.] : Nature Publishing Group
    Nature 365 (1993), S. 703-704 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] ALTHOUGH several distinguished and usually critical scientists were well aware that Twort was an exceptionally imaginative and able research worker, he never gained widespread recognition. One reason was the peculiar structure of the Brown Animal and Sanatory Institution of which he was ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/365703a0
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 5
    Digitale Medien
    Digitale Medien
    Some factors controlling carotene destruction by chloroplasts in vitro (1994)
    Springer
    Plant foods for human nutrition 45 (1994), S. 35-46 
    Details
    ISSN: 1573-9104
    Schlagwort(e): Carotene ; Chloroplasts ; Leaf protein ; Alum ; Calcium ; Citrate
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
    Notizen: Abstract Loss of β carotene from moist leaf protein stored with a preservative, is closely simulated by the destruction of β carotene by acetone extracted chloroplasts (stroma) suspended in acetone containing 30% water. During this exposure, stroma lose destructive ability, but it is restored by mercaptoacetate and other reducing agents. Stroma can therefore be used repeatedly. This catalytic process is activated by removing intrinsic inhibitors, predominantly calcium, by extraction at pHs less than 4, or by alum. The objective is to find inhibitors which would be acceptable in a food. That restricts choice. Citrate, tartarate and phosphate are among the more attractive possibilities.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01091227
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