نتایج جستجو برای: perkin
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This work was done during the tenure of a British Council Scholarship (1957-59) and a grant from the Consejo Nacional de Investigaciones Cientificas y T6cnicas, (Buenos Aires, Argentina) (1959-60). The author is indebted to Dr R. A. Kekwick for his helpful advice and criticism and for his invaluable assistance in the preparation of the manuscript and to Mr Brian Jordan for much technical assiet...
Syntheses of organometallic initiators were conducted under a nitrogen atmosphere using standard Schlenk techniques. All reagents were of commercial grade and obtained from Sigma-Aldrich Co.. Solvents and the propionic acid used for the preparation of initiators were carefully dried and distilled under nitrogen atmosphere prior to use. TEMPO was sublimated and stored under nitrogen atmosphere. ...
The title compound, C(4)H(6)O(2)S(4), was prepared by repeating, with subtle improvements, a multi-step route originally described by Mott & Barany [J. Chem. Soc. Perkin Trans. 1 (1984) ▶, pp. 2615-2621]. The title compound was obtained for the first time as a crystalline material. The two [(methyl-sulfan-yl)carbon-yl]sulfenyl moieties are essentially perpendic-ular to each other, each approxim...
Material and methods Eight genotypes of 4 most common SNPs localised in GPX1, GPX4, TXNRD2 and SEP15 were selected. Genotyping was performed in 93 affected and 186 unaffected matched BRCA1 carriers as well as on pairs matched 1:1 consisting of 108 breast, 50 ovarian and 105 prostate consecutive cancer patients and healthy controls. The following techniques for laboratory analyses have been appl...
Background: Numerous studies have shown that serum levels of trace elements including zinc play an essential role in regulation hypertension. Objective: The objective current study is to evaluate the differences among hypertensive and non-hypertensive male participants from Peshawar Khyber Pakhtun Khwa Pakistan. Method: comprised 140 adult males (70 70 non-hypertensive). subject’s age, weight, ...
ABSTRACT Introduction Dynamic stretching is a particular form of training. Currently, there little research in academia about dynamic sports dancing. Objective Explore the role functional training dance sports. Methods 60 dancers with history ankle injuries were randomly divided into control and experimental group. All performed protocol twice week, lasting 45 minutes, for eight weeks. A sessio...
BACKGROUND Type 2 diabetes results from failure of the β-cells to compensate for increased insulin demand due to abnormal levels of metabolic factors. The ob/ob(lep-/-) mouse has been extensively studied as an animal model of type 2 diabetes. Previous studies have shown a correlation between β-cell function and bioluminescent imaging in lean genetically engineered mice. The ability to noninvasi...
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