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  • 1
    Electronic Resource
    Electronic Resource
    The AHA syndrome: arthritis, hives and angioedema (1987)
    Springer
    Rheumatology international 7 (1987), S. 277-279 
    Details
    ISSN: 1437-160X
    Keywords: Arthritis ; Hives ; Angioedema ; Urticaria
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Nine patients who have intermittently exhibited the concurrent triad of arthritis or arthralgia (A), hives or urticaria (H) and angioedema (A), in the absence of associated infection or connective-tissue disease, are reported. The ratio of women to men is 4 : 1, with no apparent age specificity. The duration of the disease has been up to 16 years, with an average of seven acute episodes per year, lasting up to 14 days. Upper-airway angioedema has been severe in four patients. Routine laboratory studies were normal, as were studies of complement levels, and both humoral and cellular immunity. Two samples of synovial fluid from one patient contained a marked preponderance of Ia-positive macrophages. The absence of associated infection and connective-tissue disease suggests this recurrent triad represents a distinct entity, which is designated the AHA syndrome.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00270529
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    D2-meta-carborane-siloxanes. IV. Synthesis of linear, high molecular weight polymers (1977)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Chemistry Edition 15 (1977), S. 2229-2238 
    Details
    ISSN: 0360-6376
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: A new facile route to linear, high molecular weight D2-meta-decacarborane-siloxanes was developed based on the condensation reaction between bisureidosilanes and carborane disilanol. By using NMR to monitor the reaction stoichiometry, polymers with molecular weight ≥250,000 have been prepared. Moreover, because of the mild reaction conditions, structural modifications of the polymer backbone have been readily achieved. These linear, high molecular weight polymers overcome the fabrication difficulties encountered in previously prepared D2-polymers.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1977.170150914
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    D2-m-carborane siloxanes. V. Structure-property relationships (1977)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Physics Edition 15 (1977), S. 723-732 
    Details
    ISSN: 0098-1273
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: D2-m-decacarborane dimethylsiloxane has unusual thermal stability and resistance towards reversion, however, this material exhibits a crystalline phase, Tm at 68°C. To obtain an elastomeric material, this crystallinity is disrupted by replacing 30 to 50% of the m-carborane with p-carborane moieties or by the incorporation of phenyl moieties on the polymer backbone. The latter approach is preferred since improved thermo-oxidative stability accompanies this modification. Correlation of the glass transition temperature and thermo-oxidative stability with the polymer structure are presented.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1977.180150412
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    Paper (German National Licenses)
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