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  • 1985-1989  (3)
  • Polya's theorem  (2)
  • Human T-lymphotropic virus Type I  (1)
  • 1
    Digitale Medien
    Digitale Medien
    Complexes of block copolymers in solution: Tree approximation (1989)
    Springer
    Journal of statistical physics 57 (1989), S. 1069-1098 
    Details
    ISSN: 1572-9613
    Schlagwort(e): Block copolymers ; generating function ; Polya's theorem ; gelation
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract We determine the statistical properties of block copolymer complexes in solution. These complexes are assumed to have the topological structure of (i) a tree or of (ii) a line-dressed tree. In case the structure is that of a tree, the system is shown to undergo a gelation transition at sufficiently high polymer concentration. However, if the structure is that of a line-dressed tree, this transition is absent. Hence, we show the assumption about the topological structure to be relevant for the statistical properties of the system. We determine the average size of the complexes and calculate the viscosity of the system under the assumption that the complexes geometrically can be treated as porous spheres.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01020049
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  • 2
    Digitale Medien
    Digitale Medien
    High IgM antibody to human T-lymphotropic virus type I in systemic lupus erythematosus (1986)
    Springer
    Journal of clinical immunology 6 (1986), S. 234-241 
    Details
    ISSN: 1573-2592
    Schlagwort(e): Human T-lymphotropic virus Type I ; systemic lupus erythematosus ; serum antibody
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract Twenty-six percent of 53 systemic lupus erythematosus sera had high levels of IgM antibody to human T-lymphotropic virus Type I, significantly more than the 5% of normal controls. Neither IgG antibodies to Type I virus nor IgM or IgG antibodies to Type II virus were increased in lupus. Further analysis using competition immunoassay and Western blot techniques also suggested that the IgM Type I antibodies in lupus sera were directed against viral antigens but did not completely exclude a nonviral reaction. Other studies also have not found IgG antibodies to the Type I virus but have not tested for IgM antibodies. Our study suggests that human T-lymphotropic virus Type I or a related virus may be involved in the pathogenesis of some cases of systemic lupus erythematosus.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00918703
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  • 3
    Digitale Medien
    Digitale Medien
    Complexes of block copolymers in solution: A graph-theoretical approach (1989)
    Springer
    Journal of statistical physics 57 (1989), S. 1099-1122 
    Details
    ISSN: 1572-9613
    Schlagwort(e): Block copolymers ; generating function method ; Polya's theorem ; gelation ; nonnested structures
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract We determine the statistical properties of block copolymers in solution. These complexes are assumed to have the topological structure of connected graphs with “nonnested” loops and cycles. The generating function method is used to determine the number of topologically different complexes containing a given number of block copolymers. It is shown that at sufficiently high concentration the system undergoes a transition to a gel phase. Furthermore, the average number of polymers per complex is calculated. Finally, the relative increase in viscosity is found under the assumption that the complexes can be treated as porous spheres.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01020050
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