This work focuses on the comparison of H evolution in the hydrolysis of boron-containing hydrides (NaBH, NHBH, and (CHNHBH)) over the Co metal catalyst and the CoO-based catalysts. The CoO catalysts were activated in the reaction medium, and a small amount of CuO was added to activate CoO under the action of weaker reducers (NHBH, (CHNHBH)). The high activity of CoO has been previously associated with its reduced states (nanosized CoB).
View Article and Find Full Text PDFThis work describes the mathematical modeling of the thermal decomposition of the complex compound [Ni(En)](ClO) (En = CHN = ethylenediamine) in an inert atmosphere under non-isothermal conditions. This process is characterized by several simultaneous and intense stages: elimination of ethylenediamine from the nickel coordination sphere, decomposition of perchlorate anions, and explosive-like oxidation of free or bound ethylenediamine. These stages overlap and merge into a one step on the differential thermogravimetric curve.
View Article and Find Full Text PDFObjective: The aim: The purpose of the article is to study the challenges and prospects for the development of national health financing systems against the background of a pandemic.
Patients And Methods: Materials and methods: Our research consists of two interrelated stages. At the first stage, the central task was to determine the size of the drop in world GDP.
Results of comparison of nuchal translucency measurments (NT) and parameters of the biochemical analysis of blood serum of pregnant women in the first trimester and after use of assisted reproductive technologies (in vitro fertilization and cytoplasmic sperm injection (ICSI)) are submitted. It was shown that NT does not differ from those of women with spontaneous pregnancy, and parameters of biochemical markers tend only to change. After ICSI use concentration of free beta-HCG authentically increases.
View Article and Find Full Text PDFResults of cytogenetic investigation of the rate and the types of chromosome aberrations in lymphocytes of peripheric blood in 31 infertile women are presented. The high frequency of karyotype abnormalities (16.4%) has been shown in the studied group.
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