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  • Blackwell Publishing Ltd  (95)
  • American Physical Society (APS)
  • American Geophysical Union (AGU)
  • 1980-1984  (95)
  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 404 (1983), S. 0 
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 48 (1983), 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 combination of zinc (II) with phytic acid has been investigated under a variety of reaction conditions. With the P:Zn ratios used, i.e. 1:1 or 6:1, in the preparations elemental analyses of the isolated products indicated P:Zn ratios of either 1, 1.2 or 1.5 dependent upon the initial P:Zn ratios and the various bases and salts used in the preparations. Of the total number of experiments carried out elemental analyses indicated that only about 25% of the isolated complexes had stoichiometric atomic ratios.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 45 (1980), 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: Differential Scanning Calorimetry (DSC) was used to study gelatinization phenomena of corn, potato, acid-modified corn and smooth pea, and various legume starches. Two endothermic transitions were observed for starches heated in the presence of limited amounts of water (starch/water = 46–48% w/w). The effect of starch concentration on the shape of these two endotherms was studied for three legume starches. Considering the starch granule as a spherulite, the experimental data were treated thermodynamically by applying equations describing phase transitions of semi-crystalline polymers. Experimental evidence suggested that a solvation-assisted melting of starch crystallites took place during gelatinization and that the process was facilitated by the presence of the amorphous parts of the granule. The enthalpy change, ΔH, associated with the gelatinization varied among these starches within a range of 2.6–4.4 Cal/g. A comparison between DSC transition temperatures and characteristic gelatinization temperatures obtained by other methods was also made.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    International journal of immunogenetics 9 (1982), S. 0 
    ISSN: 1744-313X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: Recently, Gill and Kunz (1979, 1980) reported an MHC-linked recessive mutation in the rat, grc, which causes reduced viability and male sterility. Using a mouse anti-tsemilethal antiserum and a rat anti-grc antiserum, we have obtained evidence that the grc haplotype codes for t-antigens.
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  • 5
    ISSN: 1744-313X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: The MHC restriction criteria for T cells activating macrophages in vivo and mediating antimicrobiol resistance to Listeria monocytogenes were determined. Antimicribiol resistance could be transferred by T cell in order of decreasing efficiency from syngeneic. RT1A. compatible, RTI.B compatible and RT1 incompatible donors. Alloreactive T cells responding to either A locus or B locus encoded antigens in a graft-versus-host reaction were also able to activate macrophages. Approximately five times as many MLC-reactive precursors responded to B locus alloantigens as to A locus alloantigens, but A-resticted Listeria-specific T cells wre considerably more numerous (or more efficient) in Listeriainfected hosts than were B-restricted, Listeria-specific T cells. This was unexpected, since A-restricted, Listeria-specific T cells failed to transfer delayed hypersensitivity (DTH) to soluble bacterial antigens.
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  • 6
    ISSN: 1744-313X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: This study nvestigates the dicordance between the restriction criteria required for the transfer of cellular resistance to Listeria monocytogenes (LM) and those for the transfer of delayed type hypersensitivity to Listeria antigens. Infective bacteria elicity both RTl.A-restricted T cells and RT1.B.-restricted T cells. Both populations of t cells mediate lymphoblast localization and macrophage accumulation, which are reactions characteristic of delayed type hypersensitivity (DTH), and cause macrophage activation with rapid and efficient bacterial elimination, which is an expression of cellular resistance. If alcohol-killed Listeria organisms (pLMA) are injected, only the RTl.B-restricted T cell subset is triggered. Direct comparison of lymphoblast localization in LM infection sites and the expression of resistance of resistance revealed that efficient resistance may be mediated by small numbers of lymphoblasts and that below a certain threshold there is no correlation between lymphoblast localization and the level of resistance.
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  • 7
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    International journal of immunogenetics 9 (1982), S. 0 
    ISSN: 1744-313X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: Among 290 F2 progeny of an r10 x ACP cross were two recombinants which allowed the loci for glyoxalase-1 and neuraminidase-1 to be mapped relative to the RT1.A and dw-3 loci in the major histocompatibility complex (MHC) of the rat. In 673 progeny of the same cross there was a recombinant between ft and dw-3, and in 403 progeny of the backcross BY1 x (BY1 x BDIX)F1 there was another recombinant between ft and dw-3. These data, combined with those from previous studies, provide the information for constructing a detailed map of the rat major histocompatibility complex: the gene order and size in the rat are very similar to those in the mouse and different from those in man and in the other species that have been studied. Comparison of the structures of the MHC in the various species leads to a hypothesis about the evolution of the MHC which involves sequential duplications of the genes coding for class I and class II loci and an inversion in the prototypic muridae which placed the class II loci between the class I loci.
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  • 8
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    International journal of immunogenetics 9 (1982), S. 0 
    ISSN: 1744-313X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: Polymorphism of serum acid phosphatase was detected by electrofocusing in acrylamide gel. The locus has two alleles Apsa and Apsb that segregated in the backcross progeny (A x B) Fl x B in a 1:1 ratio. The phenotype APS-A is dominant in the F1 generation. The gene for serum acid phosphatase segregated independently of the major histocompatibility complex and of the sex of the rats.
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  • 9
    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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  • 10
    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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