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Digitale Medien

Complement-activating properties of IgM rheumatoid factors reacting with IgG subclasses (1995)

Sato, Y. ; Watanabe, H. ; Kogure, A. ; [weitere]

Springer

Clinical rheumatology 14 (1995), S. 425-428

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ISSN: 1434-9949

Schlagwort(e): IgM Rheumatoid Factor ; Complement Activation ; IgG Subclass ; Rheumatoid Arthritis

Quelle: Springer Online Journal Archives 1860-2000

Thema: Medizin

Notizen: Summary To estimate the complement-activating property (CAP) of IgM rheumatoid factor (RF), which was purified from synovial fluids of patients with rheumatoid arthritis, in a reaction with each IgG subclass, the activation and binding of C4 in the classical pathway of complement by IgM RF was measured in an enzyme-linked immunosorbent assay using biotinylated F(ab')2 antibody to human C4. The CAP of IgM RF reacting with IgG3 was significantly higher than that of IgM RFs bound to the other IgG subclasses (P〈0.01). These results suggest that IgM RF reacting with IgG3 in synovial fluid could induce a greater degree of complement-dependent inflammation in RA synovium than IgM RF reacting with other IgG subclasses.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF02207676

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Digitale Medien

Normal-state and superconducting properties of Sr2RuO4 (1996)

Maeno, Y. ; Nishizaki, S. ; Yoshida, K. ; [weitere]

Springer

Journal of low temperature physics 105 (1996), S. 1577-1586

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ISSN: 1573-7357

Schlagwort(e): 74.25.−q ; 74.70.−b

Quelle: Springer Online Journal Archives 1860-2000

Thema: Physik

Notizen: Abstract We discuss some of the current issues on the copper-free layered perovskite superconductor Sr2RuO4, for which a sharp transition at Tc = 1.2 K has been reproducibly obtained. The normal state is characterized as an essentially twodimensional Fermi liquid, and the coherent interlayer transport is established only at low temperatures. The cylindrical Fermi surface observed by de Haas-van Alphen experiments is consistent with other thermodynamic and transport properties. Although the specific heat jump across Tcconfirms the bulk superconductivity, the large residual T-linear term which correlates with the variation in Tcis unusual and suggestive of unconventional pairing.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF00753925

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Digitale Medien

Crossover from 3D to 2D metallic conduction in Sr2RuO4 (1996)

Yoshida, K. ; Maeno, Y. ; Nishizaki, S. ; [weitere]

Springer

Journal of low temperature physics 105 (1996), S. 1593-1598

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ISSN: 1573-7357

Schlagwort(e): 72.15.Lh ; 74.25.Fy ; 74.70.−b

Quelle: Springer Online Journal Archives 1860-2000

Thema: Physik

Notizen: Abstract We have investigated the normal-state conduction of superconducting Sr2RuO4 (Tc ∼ 1K), which is isostructural to La2−xSrxCuO4. The resistivity of single crystals shows a crossover at TM∼130K from 3D metallic conduction at lower temperatures to 2D one at higher temperatures. Concerning the temperature dependence of the out-of-plane resistivity, we present a systematic interpretation based on competition between the life time of the quasiparticles and the time for the quasiparticles to travel between the adjacent RuO2 planes.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF00753927

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