9 results on '"A. Devyatkin"'
Search Results
2. Study of the emotional state of the offspring of rats treated with aqueous plant extracts
- Author
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Pavlova Olga, Gulenko Olga, Zhelonkin Nikolai, Devyatkin Anatoly, and Shestitko Yegor
- Subjects
Environmental sciences ,GE1-350 - Abstract
The influence of biologically active compounds on the functional state of the central nervous system and the emotional component in rats can be evaluated by using behavioral methods, which are based on studying the exploratory behavior of animals in an environment new to them. One such method is the study of animal behavior in an elevated cross-shaped maze with open and closed arms and the Porsolt "despair" test. The aim of our study was to investigate the emotional state of the offspring of rats treated with aqueous plant extracts of Centella asiatica, Ginkgo biloba, Eleuterococcus and a mixture of aqueous extracts of Centella asiatica and Ginkgo biloba. The study of the emotional state of the offspring of rats treated with aqueous plant extracts was performed on 3 month old animals obtained in the experiment from males (20 animals) and females (50 animals), which received aqueous plant extracts at a dose of 30 mg/100 g of the animal body weight, in the volume of 1 ml for 30 days. Conclusions: Aqueous extracts of Centella asiatica, Ginkgo biloba and Eleutherococcus have pronounced nootropic activity, as the evaluation of animal anxiety level in the Elevated Cross Maze test and depression level in the Porsolt Despair Behavior test show a significant difference in the behavior of intact rats and offspring rats, receiving aqueous plant extracts as an additional load and the most pronounced effect is observed with the complex application of extracts of Centella asiatica and Ginkgo biloba.
- Published
- 2022
- Full Text
- View/download PDF
3. Approaches for forecasting of socioeconomic impacts to the spread of COVID-19 with territorial differences of Russian regions
- Author
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Devyatkin Dmitry, Otmakhova Yulia, and Usenko Natalia
- Subjects
covid-19 pandemic ,socioeconomic and interterritorial impacts ,recurrentneural network ,long-short term memory ,forecasting ,region ,Environmental sciences ,GE1-350 - Abstract
The COVID-19 pandemic has brought severe demographical, socioeconomic, and territorial impacts. Those challenges require the world community to develop both response measures and anticipation of new threats. Therefore, creating the modern tools to forecast various indicators of the impact intensity pandemic becomes important and relevant for consideration and evaluation of interregional differences. This paper presents deep neural network models to predict a viral pandemic's effects in the regional cluster of Moscow and its neighbors. They are based on recurrent and Transformer-like architectures and utilize the attention mechanism to consider the features of the neighbor regions and dependencies between various indicators. These models are trained on heterogeneous data, including daily cases and deaths, the diseased age structure, transport, and hospital availability of the regions. The experimental evaluation shows that the demographic and healthcare features can significantly improve the accuracy of economic impact prediction. We also revealed that the neighboring regions' data helps predict the outburst's healthcare and economic impact. Namely, that data helps to improve accuracy for both the number of infected and the unemployment rate. The impact forecasting would help to develop strategies to reduce inter-territorial inequality due to the pandemic.
- Published
- 2021
- Full Text
- View/download PDF
4. Study of changes in catalase activity in rat brain under mechanical influence on hemato-ophthalmic barrier
- Author
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Devyatkin Anatoly, Pavlova Olga, Gulenko Olga, and Boriskin Pavel
- Subjects
Environmental sciences ,GE1-350 - Abstract
Hemato-ophthalmic barrier protects nervous system tissues from adverse factors. Against the background of inflammatory process caused by mechanical trauma of the eye, large molecules are able to penetrate the eyeball. At present, the mechanism of restoring the homeostatic balance of the body under oxidative stress caused by mechanical trauma of the eye is poorly studied. The aim of the study was to study the dynamics of catalase activity in rat brain tissue under oxidative stress caused by mechanical influence on hemato-ophthalmic barrier. Materials and methods: the study was conducted on white male rats of six months of age in the amount of 150 pieces. The activity of catalase in brain tissue was studied before the experiment, as well as on the 1st, 3rd, 5th, 7th and 14th day of the experiment using the standard Korolyuk M.A. method. The obtained digital material was statistically processed by non-parametric statistical analysis. Conclusion: The activity of catalase in the rat brain under oxidative stress caused by mechanical action on the hemato-ophthalmic barrier is most effectively stabilized in the standard therapy of mechanical eye injury with the addition of quercetin in the form of injections.
- Published
- 2020
- Full Text
- View/download PDF
5. Study of superoxiddismutase activity dynamics in rat skeletal muscle tissue under mechanical influence on hemato-ophthalmic barrier
- Author
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Devyatkin Anatoly, Pavlova Olga, Gulenko Olga, Boriskin Pavel, and Tulaeva Olga
- Subjects
Environmental sciences ,GE1-350 - Abstract
Hemato-ophthalmic barrier is one of the mechanisms of body resistance. One of the complications of mechanical trauma of the eye and violation of the hemato-ophthalmic barrier is the emergence of oxidative stress on the background of the general inflammatory process. Normally, oxidative stress in the skeletal muscle tissue is not a damaging agent, but when intensified by other factors, it promotes pathological changes in the body. Objective: to study the dynamics of superoxiddismutase (SOD) activity in rat skeletal muscle tissue under oxidative stress caused by mechanical action on the hemato-ophthalmic barrier. Materials and methods: The study was carried out on pedigree matured male rats in the amount of 150 pieces. The activity of SOD in skeletal muscle tissue was studied before the experiment, as well as on the 1st, 3rd, 5th, 7th and 14th day of the experiment using the standard technique of V.S. Gurevich. The obtained digital material was subjected to statistical processing by means of non-parametric statistical analysis. Conclusion: SOD activity in rat skeletal muscle tissue under oxidative stress caused by mechanical action on hemato-ophthalmic barrier is most effectively stabilized in standard therapy of mechanical eye injury with the addition of quercetin in the form of injections.
- Published
- 2020
- Full Text
- View/download PDF
6. Ecological Education as a Factor of Mining Engineer Training
- Author
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Sigareva Elena, Devyatkin Gennady, and Baturin Sergey
- Subjects
Environmental sciences ,GE1-350 - Abstract
To reduce environmental tension the development of Kuzbass ecological culture is of great importance. Its most significant component is environmental education, in general, and the training of mining engineers with high level of ecological education, in particular. The presence of environmental education in the field of nature management cannot yet become a guarantor of environmental problems solution. It should be embodied in the behavior of a person, in the image of his life, in the system of values, in his ecological worldview. Educational reforms have become a response to the challenges posed by the social-and-economic development to the personality of a specialist, including the personality of a mining engineer in Russia and its regions. To identify the features of environmental education in the transition to the sustainable development it is important to set the main links in the system of continuous education and their peculiarities, which radically change the quality of training of mining engineers and the demand for specialists in the labor market.
- Published
- 2018
- Full Text
- View/download PDF
7. Study of changes in catalase activity in rat brain under mechanical influence on hemato-ophthalmic barrier
- Author
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Olga Gulenko, Pavel Boriskin, Anatoly Devyatkin, and Olga Pavlova
- Subjects
0301 basic medicine ,Nervous system ,lcsh:GE1-350 ,medicine.medical_specialty ,Digital material ,biology ,Chemistry ,Brain tissue ,Rat brain ,medicine.disease_cause ,03 medical and health sciences ,030104 developmental biology ,0302 clinical medicine ,medicine.anatomical_structure ,Endocrinology ,Catalase ,030220 oncology & carcinogenesis ,Internal medicine ,biology.protein ,medicine ,Statistical analysis ,Homeostasis ,Oxidative stress ,lcsh:Environmental sciences - Abstract
Hemato-ophthalmic barrier protects nervous system tissues from adverse factors. Against the background of inflammatory process caused by mechanical trauma of the eye, large molecules are able to penetrate the eyeball. At present, the mechanism of restoring the homeostatic balance of the body under oxidative stress caused by mechanical trauma of the eye is poorly studied. The aim of the study was to study the dynamics of catalase activity in rat brain tissue under oxidative stress caused by mechanical influence on hemato-ophthalmic barrier. Materials and methods: the study was conducted on white male rats of six months of age in the amount of 150 pieces. The activity of catalase in brain tissue was studied before the experiment, as well as on the 1st, 3rd, 5th, 7th and 14th day of the experiment using the standard Korolyuk M.A. method. The obtained digital material was statistically processed by non-parametric statistical analysis. Conclusion: The activity of catalase in the rat brain under oxidative stress caused by mechanical action on the hemato-ophthalmic barrier is most effectively stabilized in the standard therapy of mechanical eye injury with the addition of quercetin in the form of injections.
- Published
- 2020
8. Study of superoxiddismutase activity dynamics in rat skeletal muscle tissue under mechanical influence on hemato-ophthalmic barrier
- Author
-
Olga Gulenko, Pavel Boriskin, Olga Pavlova, Anatoly Devyatkin, and Olga Tulaeva
- Subjects
0301 basic medicine ,lcsh:GE1-350 ,medicine.medical_specialty ,Body resistance ,Digital material ,Chemistry ,medicine.disease_cause ,Standard technique ,03 medical and health sciences ,030104 developmental biology ,0302 clinical medicine ,Endocrinology ,Internal medicine ,Male rats ,medicine ,Skeletal Muscle Tissue ,Statistical analysis ,Statistical processing ,030217 neurology & neurosurgery ,Oxidative stress ,lcsh:Environmental sciences - Abstract
Hemato-ophthalmic barrier is one of the mechanisms of body resistance. One of the complications of mechanical trauma of the eye and violation of the hemato-ophthalmic barrier is the emergence of oxidative stress on the background of the general inflammatory process. Normally, oxidative stress in the skeletal muscle tissue is not a damaging agent, but when intensified by other factors, it promotes pathological changes in the body. Objective: to study the dynamics of superoxiddismutase (SOD) activity in rat skeletal muscle tissue under oxidative stress caused by mechanical action on the hemato-ophthalmic barrier. Materials and methods: The study was carried out on pedigree matured male rats in the amount of 150 pieces. The activity of SOD in skeletal muscle tissue was studied before the experiment, as well as on the 1st, 3rd, 5th, 7th and 14th day of the experiment using the standard technique of V.S. Gurevich. The obtained digital material was subjected to statistical processing by means of non-parametric statistical analysis. Conclusion: SOD activity in rat skeletal muscle tissue under oxidative stress caused by mechanical action on hemato-ophthalmic barrier is most effectively stabilized in standard therapy of mechanical eye injury with the addition of quercetin in the form of injections.
- Published
- 2020
9. Ecological Education as a Factor of Mining Engineer Training.
- Author
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Tyulenev, M., Zhironkin, S., Khoreshok, A., Vöth, S., Cehlár, M., Nuray, D., Janocko, J., Anyona, S., Tan, Y., Abay, A., Sigareva, Elena, Devyatkin, Gennady, and Baturin, Sergey
- Published
- 2018
- Full Text
- View/download PDF
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