Health assessment of students of universities of the city of Yekaterinburg

The article presents the results of a survey of 4th-year students of three higher educational institutions in Yekaterinburg about the presence of diseases of various systems. The assessment of physical activity of students and the frequency of their stay in the fresh air was carried out. Statistics on Smoking among this audience are compiled.В статье представлены результаты опроса студентов 4 курса трех высших учебных заведений города Екатеринбурга о наличии у них заболеваний различных систем. Проведена оценка физической активности учащихся и частоты их нахождения на свежем воздухе. Составлена статистика курения среди данной аудитории

The effect of transition metal substitution in the perovskite-type oxides on the physicochemical properties and the catalytic performance in diesel soot oxidation

The paper is focused on the Fe for Co substitution effect on the redox and catalytic properties in the perovskite structure of GdFeO3. The solid oxides with the composition GdFe1xCoxO3 (x = 0; 0.2; 0.5; 0.8; 1) were obtained by the sol-gel method and characterized by various methods: Xray diffraction (XRD), temperature-programmed reduction (H2-TPR), N2 sorption, temperatureprogrammed desorption of oxygen (TPD-O2), simultaneous thermal analysis (STA), and X-ray photoelectron spectroscopy (XPS). The H2-TPR results showed that an increase in the cobalt content in the GdFe1xCoxO3 (x = 0; 0.2; 0.5; 0.8; 1) leads to a decrease in the reduction temperature. Using the TPD-O2 and STA methods, the lattice oxygen mobility is increasing in the course of the substitution of Fe for Co. Thus, the Fe substitution in the perovskite leads to an improvement in the oxygen reaction ability. Experiments on the soot oxidation reveal that catalytic oxidation ability increases in the series: GdFe0.5Co0.5O3 < GdFe0.2Co0.8O3 < GdCoO3, which is in good correlation with the increasing oxygen mobility according to H2-TPR, TPD-O2, and STA results. The soot oxidation over GdFeO3 and GdFe0.8Co0.2O3 is not in this range due to the impurities of iron oxides and higher specific surface area

Health assessment of students of universities of the city of Yekaterinburg

The article presents the results of a survey of 4th-year students of three higher educational institutions in Yekaterinburg about the presence of diseases of various systems. The assessment of physical activity of students and the frequency of their stay in the fresh air was carried out. Statistics on Smoking among this audience are compiled.В статье представлены результаты опроса студентов 4 курса трех высших учебных заведений города Екатеринбурга о наличии у них заболеваний различных систем. Проведена оценка физической активности учащихся и частоты их нахождения на свежем воздухе. Составлена статистика курения среди данной аудитории