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  • 11
    Electronic Resource
    Electronic Resource
    The Chemistry of the Lipids (1946)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Biochemistry 15 (1946), S. 93-118 
    Details
    ISSN: 0066-4154
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Chemistry and Pharmacology , Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.bi.15.070146.000521
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  • 12
    Electronic Resource
    Electronic Resource
    Concurrent Measurement of Renin and Angiotensin in the Circulation of the Dog (1967)
    [s.l.] : Nature Publishing Group
    Nature 215 (1967), S. 853-855 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] We report here an extension of this work in which changes in the concentration of plasma renin, the rate of generation of angiotensin and the concentration of angiotensin in the blood were measured concurrently. Fig. 1. Dog 2. The responses of three blood-bathed tissues to (i) angio-tensin infused ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/215853a0
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  • 13
    Electronic Resource
    Electronic Resource
    Evolutionary Similarities between Pancreatic Proteolytic Enzymes (1965)
    [s.l.] : Nature Publishing Group
    Nature 207 (1965), S. 1157-1159 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IT is now generally agreed that the amino-acid sequence of a protein is determined by the nucleotide sequence of its parent gene, so that comparison of the sequences of related proteins can provide clues about their genetic origins. If we compare similar proteins from different species we may hope ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/2071157a0
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  • 14
    Electronic Resource
    Electronic Resource
    Characterization of Boron Deficiency in Soybeans (1969)
    Oxford, UK : Blackwell Publishing Ltd
    Physiologia plantarum 22 (1969), S. 0 
    Details
    ISSN: 1399-3054
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Boron-deficient soybean roots have a rosette appearance at the terminals caused by the death of the root primordium and the initiation of new root primordia. The root tips show some darkening, swelling, and then a collapse of the tissue. The petiole s of B-deficient plants are very brittle.Physiologically, B-deficiency in HA-soybeans does not appear to involve an interference in the transport of photosynthate (C14 distribution) or precursors required for citrate synthesis in the roots.More Ca 45 was found in the tops of B-sufficient than B-deficient plants, but the opposite trend existed in the root sap. Boron deficiency symptoms were accentuated by maintaining a relatively low pH of the prenutrient solution by the addition of K salts.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1399-3054.1969.tb07854.x
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  • 15
    Electronic Resource
    Electronic Resource
    Fe and Ca Uptake as Related to Root-Sap and Stem-Exudate Citrate in Soybeans (1966)
    Oxford, UK : Blackwell Publishing Ltd
    Physiologia plantarum 19 (1966), S. 0 
    Details
    ISSN: 1399-3054
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Two soybean varieties that differentially absorb and translocate iron were used to compare root-sap citrate with stem-exudate citrate as they are involved in the uptake of Fe and Ca. The status of Fe and PO4 in the prenutrient solution determined the citrate concentration in the root sap and the citrate translocated in the stem exudate. There was a parallel between the iron and the citrate translocated in the stem exudate, but this relationship did not appear to exist for the citrate and Fe concentrations in the root sap.Iron stress (deficiency) promoted the accumulation of citrate in the root-sap, but there was not a concomitant increase of citrate in the stem exudate. In iron-deficient soybeans, phosphate stress also promoted the accumulation of citrate in the root sap, and here, stem-exudate citrate and root-sap citrate more nearly followed the same trends. The citrate pool in the root appears to result from a deficiency of iron and may not be directly involved in the absorption and translocation of iron from the growth medium. Increasing amounts of phosphate in the prenutrient decreased both the citrate and Fe in the root sap and stem exudate.The factors controlling the uptake of Fe are rather specific and are not related to the uptake of radioactive Ca 45 in soybeans regardless of soybean variety, degree of iron stress, or citrate concentration in the root.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1399-3054.1966.tb07087.x
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  • 16
    Electronic Resource
    Electronic Resource
    Ethyl 6,7-bis(cyclopropylmethoxy)-4-hydroxy-3-quinolinecarboxylate, a potent anticoccidial agent (1968)
    Springer
    Cellular and molecular life sciences 24 (1968), S. 1188-1189 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Zusammenfassung Synthese und Wirkung gengen Coccidia des 6,7-bis(Cyclopropylmethoxy)-4-hydroxy-chinolin-3-carbonsäureäthylesters werden beschrieben.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02146611
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  • 17
    Electronic Resource
    Electronic Resource
    Metallic Delay Lenses (1949)
    [s.l.] : Nature Publishing Group
    Nature 163 (1949), S. 324-325 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] AN experimental study of the metallic delay lens described by Kock1 has been made in this Establishment, using a lens constructed of parallel strips as in Fig. 1, the E vector being normal to the line of the strips. The dimensions were such that Kock's formula for refractive ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/163324a0
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  • 18
    Electronic Resource
    Electronic Resource
    Structure of Citrinin (1948)
    [s.l.] : Nature Publishing Group
    Nature 162 (1948), S. 72-73 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN view of the recent communication on this topic by Cram1 to the editor of the Journal of the American Chemical Society, we wish to record that in the course of an extensive investigation on the chemistry of citrinin initiated in these laboratories in 1945, the synthesis of ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/162072b0
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  • 19
    Electronic Resource
    Electronic Resource
    A New Technique for Studying the Helium Film (1947)
    [s.l.] : Nature Publishing Group
    Nature 160 (1947), S. 670-670 
    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 the properties of the helium film and the mechanism of the transport in this film have been investigated systematically1. However, all these measurements were carried out with the bulk liquid present, and the film was therefore always under the vapour ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/160670a0
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  • 20
    Electronic Resource
    Electronic Resource
    Decomposition of the water-soluble fraction of sudangrass residue in soil (1968)
    Springer
    Plant and soil 28 (1968), S. 467-470 
    Details
    ISSN: 1573-5036
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Ground sudangrass forage was extracted at room temperature with demineralized water. The insoluble residue, the water-soluble residue, unextracted sudangrass and the recombined soluble and insoluble fractions were incubated in remoistened, air-dried soil to measure the influence of the water-soluble fraction on net carbon dioxide evolution. The maximum rate of carbon dioxide evolution from the check soil and from any treatment containing the water-soluble fraction of sudangrass occurred about 14 hours after initiation of incubation. Maximum rate of carbon dioxide evolution from the soil treated with the insoluble residue occurred about 39 hours after initiation of the incubation. The rate of carbon dioxide evolution from the soil which received the water-soluble residue was not significantly different from the rate from the check soil after 44 hours of incubation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01373596
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