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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    European journal of clinical pharmacology 45 (1993), S. 279-281 
    ISSN: 1432-1041
    Keywords: Rheumatoid arthritis ; Acetylator phenotype ; polymorphism ; sulphamethazine
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary Acetylator phenotype has been determined with sulphamethazine (sulphadimidine) in 69 Spanish patients with rheumatoid arthritis (48 females), all of whom were on second line therapy, and in 96 age-matched normal controls (54 females). Thirty-two patients (46.4%) and 56 controls (58.3%) were classified as slow acetylators. On analysing separately the females in both groups, 37.5% of patients and 63% of controls were found to be slow acetylators. No difference was found in the males (patients 66.3% and controls 52.4% slow acetylators). Rapid acetylator phenotype may be a risk factor for the development of severe rheumatoid arthritis in women.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Naturwissenschaften 45 (1958), S. 508-508 
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Journal of materials science 22 (1987), S. 2707-2716 
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Several austenizing treatments carried out on different types of quench-temper and carburizing steels confirm the relationship which exists between austenitic grain size and the treatment time and temperature parameters. A relationship has been established between the three variables, a regression plane linking them being obtained. A mathematical model is proposed which permits the treatment parameterP to be calculated theoretically, and making it possible to obtain from only chemical composition and austenizing temperature the data required to obtain the Jominy curve. The experimental results for diverse steels and the resulting structures agree with those obtained theoretically. A calculation programme has been developed in accordance with the model we present for both manufacture and quality control. Its industrial use has been widely verified.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Hot torsion tests were conducted to simulate forging processes in two vanadium microalloyed steels, types 40MVS6 and 30MSiV62, varying both the conditions of test temperature and time as well as the strain and strain-rate conditions, in order to obtain final results comparable to the classic Q+T steels, direct from the forge. The Zener-Hollomon equations were also calculated, indicating the conditions of application which theoretically permit the prediction of forging parameters, in accordance with the needs or possibilities of an industrial plant.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1612-1112
    Keywords: Column liquid chromatography ; Micellar liquid chromatography ; Diethyldithiocarbamates ; Metal complexes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary This paper presents the, chromatographic retention of Co(II), Ni(II) and Cu(II) as diethyldithiocarbamate complexes in the presence of hexadecyltrimethylammonium bromide/ethanol/water systems, as mobile phase, by reversed phase high performance liquid chromatography. The presence of an organic modifier reduces the retention times and improves the efficiency. In order to evaluate the interaction between the metal complexes and the mixed micellar system the values of solute binding constants are calculated in, two ways: a) Arunyanart and Cline-Love's treatment and b) multiple regression analysis taking account of the ethanol percentages.
    Type of Medium: Electronic Resource
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