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  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of the American Chemical Society 60 (1938), S. 2566-2566 
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Analytical chemistry 35 (1963), S. 2161-2164 
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Analytical chemistry 28 (1956), S. 1161-1163 
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
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  • 4
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Analytical chemistry 30 (1958), S. 1217-1218 
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
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  • 5
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 181 (1958), S. 568-569 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] In 100 adult cats we have found dorsal (posterior) protrusions in 26, a total of 91 disks being affected. Two types could be distinguished: in one the protruded mass perforated the annulus fibrosus, and in the other it caused a bulge without passing right through the annulus. The distribution of ...
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  • 6
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Industrial & engineering chemistry 54 (1962), S. 29-35 
    ISSN: 1520-5045
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Chromatographia 5 (1972), S. 521-524 
    ISSN: 1612-1112
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Die genaue Identifizierung biologischer Proben ist eine der grundsätzlichen Forderungen der theoretischen und der angewandten Biologie. Die Pyrolyse-GLC bietet die Möglichkeit der Schnellerkennung einer spezifischen biochemischen Zusammensetzung und dadurch, innerhalb gewisser Grenzen, der Identifizierung einer Probe. Bei Verwendung eines normalen Flammenionisations-Detektors werden alle nennenswerten Pyrolyseprodukte aufgezeichnet, und das Resultat ist oft nur von begrenztem Interesse, da die Kohlenhydrate und Lipide, die den größten Teil derartiger Proben darstellen können, im wesentlichen ähnliche Diagramme ergeben. Sie neigen dazu, die stärker interessierenden Unterschiede zu verdecken, die hauptsächlich in den Protein-Fraktionen zu finden sein dürften. Der kürzlich entwickelte Stickstoff-Detektor mit Rubidium-Chlorid bietet die Möglichkeit, sich speziell auf diese und ähnliche interessierende biochemische Stoffe „einzustellen”; die Anwendungsmöglichkeiten dieser Technik werden diskutiert.
    Abstract: Résumé L'identification certaine d'échantillons biologiques est une exigence fondamentale de la biologie pure et appliquée. La CGL avec pyrolyse offre la possibilité d'une reconnaissance rapide de la composition biochimique particulière d'un échantillon et donc, dans certaines limites, de son identification. Avec un système normal de détection par ionisation de flamme, tous les produits importants de pyrolyse sont mis en évidence; le résultat ainsi obtenu est souvent d'un intérêt limité, puisque les hydrates de carbone et les lipides, qui peuvent former la partie la plus importante des échantillons, donnent des chromatogrammes plus ou moins semblables et sont susceptibles de masquer les différences plus remarquables qu'on peut attendre surtout dans la fraction des protéines. Le système de détection d'azote (utilisant le chlorure de rubidium, qui a été mis au point récemment) offre la possibilité d'une détection spécifique des produits de pyrolyse des protéines et d'autres substances biochimiques d'un intérêt particulier. Les possibilités d'application de cette technique sont discutées.
    Notes: Summary The accurate identification of biological specimens is one of the basic requirements of pure and applied biology. Pyrolysis — GLC offers the possibility of rapid recognition of a specific biochemical composition and therefore, within limits, identification of a specimen. With a normal flame ionisation detection system, all major products of pyrolysis are recorded and the results are frequently of only limited interest, since carbohydrates and lipids, which may form the major part of such samples, give broadly similar patterns, and tend to mask the more interesting differences which are likely to be mainly in the protein fractions. The recently developed nitrogen detection system involving rubidium chloride, offers the possibility of ‘tuning in’ specifically to these and other interesting biochemicals and the potential usefulness of this technique is discussed.
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  • 8
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 292 (1981), S. 767-768 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Neonatally induced transplantation tolerance requires the acceptance of an allogeneic skin graft3, and such tolerance seems coincidental with the inability of lymphocytes from these skin-graft-tolerant animals to generate cytotoxic lymphocytes against alloantigens of the tolerated strain4'5. In ...
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  • 9
    ISSN: 1572-8862
    Keywords: X-Ray emission spectra; magnetic multilayers ; electronic structure ; thin-film growth ; interlayer coupling
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Soft x-ray fluorescence spectroscopy has been used to examine the electronic structure of deeply buried silicide thin films that arise in Fe/Si multilayers. These systems exhibit antiferromagnetic (AF) coupling of the Fe layers, despite their lack of a noble metal spacer layer found in most GMR materials. Also, the degree of coupling is very dependent on preparation conditions, especially spacer layer thickness and growth temperature. The valence band spectra are quite different for films with different spacerlayer thickness yet are very similar for films grown at different growth temperatures. The latter result is surprising since AF coupling is strongly dependent on growth temperature. Combining near-edge x-ray absorption with the fluorescence data demonstrates that the local bonding structure in the silicide spacer layer in epitaxial films which exhibit AF coupling are metallic. These results indicate the equal roles of crystalline coherence and electronic structure in determining the magnetic properties of these systems.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Agroforestry systems 20 (1992), S. 117-139 
    ISSN: 1572-9680
    Keywords: browse ; Leucaena ; Chamaecytisus ; Atriplex ; acacia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Experience with browse plants in Australia is briefly reviewed in terms of their forage value to animals, their economic value to the landholder and their ecological contribution to landscape stability. Of the cultivated species only two have achieved any degree of commercial acceptance (Leucaena leucocephala and Chamaecytisus palmensis). Both of these are of sufficiently high forage value to be used as the sole source of feed during seasonal periods of nutritional shortage. Both are also leguminous shrubs that establish readily from seed. It is suggested that a limitation in their present use is the reliance on stands of single species which leaves these grazing systems vulnerable to disease and insects. Grazing systems so far developed for high production and persistence of cultivated species involve short periods of intense grazing followed by long periods of recovery. Similar management may be necessary in the arid and semi-arid rangelands where palatable browse species are in decline.
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