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  • Blackwell Publishing Ltd  (14)
  • American Geophysical Union (AGU)
  • American Physical Society (APS)
  • 1980-1984  (14)
  • 1950-1954
  • 1940-1944
  • 1981  (14)
  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Sedimentology 28 (1981), S. 0 
    ISSN: 1365-3091
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    International journal of immunogenetics 8 (1981), S. 0 
    ISSN: 1744-313X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: Haemagglutination inhibition studies using isolated membrane components from rat red blood cells showed that the activity of the major antigenic system RT2 was contained exclusively in the glycoprotein fraction and confirmed immunochemically the existence of two alleles, RT2a and RT2b. The SDS-PAGE analysis of the membrane showed two interconvertible glycoproteins of apparent molecular weight 72,000 and 36,000, and the higher molecular weight component appeared to be a dimer of the lower molecular weight one. Analysis of the various membrane preparations after 125I-labelling showed that the glycoproteins existed in at least two molecular species on the surface of the red cells and that one species was more readily radio-iodinated and dimerized than the other. The RT2 antigenic specificities were preferentially associated with this component.
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Fatigue & fracture of engineering materials & structures 4 (1981), S. 0 
    ISSN: 1460-2695
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract —In recent years the low fatigue growth rate regime has been the subject of extensive study revealing its complex and often seemingly inconsistent nature. The value of alternating stress intensity at threshold ΔKTh) is sensitive to a range of variables which include mean stress, stress history, monotonie and cyclic yield strength, grain size and environment. A degree of coherency may be achieved by interpreting the data in terms of a crack closure mechanism which is a function of surface roughness. Experiments, in which the surface roughness (φ) has been altered by the introduction of non-metallic inclusions, give insight into the significance of crack closure in this regime.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    International journal of immunogenetics 8 (1981), S. 0 
    ISSN: 1744-313X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: The genetic basis of allogeneic restriction in the transfer of delayed type hypersensitivity (DTH) to soluble Listeria monocytogenes antigens (LMA) in rats was analysed using a set of congenic strains. The DTH parameter assayed was the localization of radiolabelled donor lymphoblasts in subcutaneous antigen stimulation sites in the ear. Sharing of the RT1.B region between the donor and host was essential for the transfer of DTH to LMA, which suggests that the RT1.B region codes for restriction elements controlling antigen recognition by TDTH cells. The recombinant haplotype RT1r1 was exceptional in that transfer of DTH to A-region matched recipients was, at least in part, possible. Measurement of donor lymphoblast localization in DTH sites afforded an opportunity to quantify allogeneic effects influencing localization of sensitized donor cells in DTH sites borne by alien recipients. Both RT1.B and RT1.A region differences could induce allogeneic effects, but they were an order of magnitude lower than those based on restricted recognition by donor T cells.
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  • 5
    ISSN: 1744-313X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: The classification of the RT1.A phenotypes of a large number of inbred and congenic strains of rats, including those prototypic for all of the known RT1.A phenotypes, was done by examining the reactivity of a variety of unabsorbed antisera with cells of the different strains. The data were analysed by the techniques of numerical taxonomy without reference to the previous classification by the classical serological methods. The most effective way of analysing the data was the use of the Jaccard correlation coefficient and the average linkage method of statistical analysis. Four conclusions were drawn from this study. First, the RT2 antigens must be matched in the donor and recipient pair used to raise the anti-RT1 (MHC) antiserum or spurious typing results can occur due to the presence of anti-RT2 antibodies. Second, using anti-RT1 antisera raised in RT2 compatible pairs of rats, the classification of inbred and congenic strains into the RT1.A phenotypes on the basis of classical serological studies was confirmed. Third, two groups of closely related RT1.Ac phenytopes were found (a, f, d and b, m). Fourth, the AUG and PVG strains, both of which carry the the RT1.Ac phenotype, are quite distantly related on the basis of this taxonomic analysis and the RTl.Ag and RT1.An phenotypes are the most distantly related compared to all of the other rat strains and to each other. These data provide further evidence that the RT1 polymorphism of the rat is very limited, especially in respect of man and mouse.
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  • 6
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    International journal of immunogenetics 8 (1981), S. 0 
    ISSN: 1744-313X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    International journal of immunogenetics 8 (1981), S. 0 
    ISSN: 1744-313X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: Variation in enzyme activity of liver neuraminidase and in electrophoretic mobility of liver α-mannosidase is controlled by a gene or by independently acting genes linked to the major histocompatibility complex of the rat.
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  • 8
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 46 (1981), S. 0 
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Two relatively new protein isolation techniques (the Aqueous Extraction Process and the Membrane Isolation Process) were combined to obtain a single isolation procedure to produce protein and oil food products from undefatted soybeans. Three lots of soybeans were processed using aqueous extraction, centrifugation and industrial ultrafiltration membranes to obtain either a full-fat, low-fat or intermediate-fat product and an oil cream. Proximate and amino acid analyses, nitrogen solubility profiles, and storage tests were made on spray dried products. Mean membrane permeation rates achieved ranged from 20–42.6 gfd. Protein products possessed high nitrogen solubilities below pH 3.5 and above pH 7, and were desirably light in collor.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 46 (1981), S. 0 
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Two significant protein isolation techniques (the Aqueous Extraction Process and the Membrane Isolation Process) were combined to obtain a new processing strategy for producing oil and protein food products from raw peanuts. Three varieties of peanuts were processed to obtain either a low-fat isolate or a full-fat product and an oil cream using aqueous extraction, centrifugation and industrial ultrafiltration membranes. Proximate and amino acid analyses and nitrogen solubility profiles were made on spray-dried products. Mean membrane permeation rates achieved exceeded 70 gallons per sq ft per day (gfd). Protein products possessed high nitrogen solubility, a bland taste, and were desirably light in color.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 46 (1981), S. 0 
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: The time-temperature relationships for the inactivation of crude toxins prepared from Clostridium botulinum type F strain Wall 8 and type G strain G89 were determined in three different heating menstrua. Toxins dilated to 7,700–32,000 mouse LD50 units/0.5 ml in beef and mushroom patties (pH 6.05), in 0.1M phosphate buffer (pH 6.05), and in 00.1M acetate buffer (pH 5.0) were heated at temperatures from 65.6–76.7°C. In the beef patties, inactivation times ranged from an average of 108.1–1.6 min for type F toxin, and from an average of 158.8–1.8 min for type G toxin. Less time was required in phosphate buffer.
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