Zobrazeno 1 - 10
of 85
pro vyhledávání: '"A. V. Yefimov"'
Publikováno v:
Advanced Engineering Research, Vol 19, Iss 2, Pp 164-169 (2019)
Introduction. The heating efficiency or regulation of the operating temperature of the fluid located in the gauge tank of a mobile pumping unit (PU) using the exhaust system of the internal combustion engine (ICE) is studied. The paper objective is t
Externí odkaz:
https://doaj.org/article/f138f6e1506a4052955ede4d95eeda29
Autor:
Stanislav V. Yefimov
Publikováno v:
Journal of Pharmacy & Pharmacognosy Research, Vol 9, Iss 6, Pp 803-812 (2021)
Context: In pharmacy products, glutathione and vitamin C are often present together. Both components not only enhance each other’s action but also protect each other from oxidation, forming an antioxidant couple. The work is devoted to the developm
Externí odkaz:
https://doaj.org/article/eb5c62d97cf949009f631f3aef07b18b
Autor:
Stanislav V. Yefimov
Publikováno v:
Journal of Pharmacy & Pharmacognosy Research, Vol 8, Iss 4, Pp 299-307 (2020)
Context: Sodium calcium ethylenediaminetetraacetic acid (EDTA) is used to bind metal ions in the practice of chelation therapy, such as treating mercury and lead poisoning. This therapy is used to treat the complication of repeated blood transfusions
Externí odkaz:
https://doaj.org/article/6ec2ce4e14444caab0e787aa5d3671a6
Autor:
Stanislav V. Yefimov
Publikováno v:
Scholars Academic Journal of Pharmacy. 12:74-78
Electrolyte solutions consisting of acids, bases, and their salts have one or more singular points. These special points include the equivalence points of the titration curves and the coordinates (composition) of the maximum buffer capacity of the bu
Autor:
Stanislav V. Yefimov
Publikováno v:
Scholars Academic Journal of Pharmacy. 12:67-73
Previously, we found that methylcobalamin spontaneously converts to hydroxocobalamin at room temperature in aqueous and methanol solutions protected from light. The kinetics and rate constants were determined. This work is devoted to the validation o
Autor:
Stanislav V. Yefimov
Publikováno v:
Scholars Academic Journal of Biosciences. 11:122-129
The paper considers the state of the system, which is an electrolyte solution containing an acid and a base in various ratios. The general equation of the state of the system is derived. Methods are proposed to solve the general equation for the conc
Autor:
Stanislav V. Yefimov
Publikováno v:
Scholars Academic Journal of Pharmacy. 11:176-181
This work aimed to determine the stability of methylcobalamin in injection solutions under light-protected conditions, identify the products of its spontaneous transformation, and determine the kinetics of these transformations. We have found that me
Autor:
Stanislav V. Yefimov
Publikováno v:
South Asian Research Journal of Pharmaceutical Sciences. 4:75-82
The work is devoted to statistical methods for determining the comparative sensitivity of sterility analyzers with a binary scale: 1/0, +/-. The paper considers both traditional statistical test methods namely the direct binomial test, the McNemar te
Autor:
Stanislav V. Yefimov
Publikováno v:
Scholars Academic Journal of Pharmacy. 10:94-99
The work is devoted to determining the comparative efficiency of analyzers with a binary scale: 1/0, +/-, yes/no. Such a task arises, for example, when validating a new method of microbiological analysis for sterility when comparing the results of th
Autor:
Stanislav V. Yefimov
Publikováno v:
South Asian Research Journal of Pharmaceutical Sciences. 4:41-47
We were tasked with testing a multicomponent aqueous solution for injection used in veterinary medicine. The composition of the solution included the following components: folic acid, tryptophan, nicotinic acid, thiamine hydrochloride, ascorbic acid,