Pub Date : 2021-12-13DOI: 10.34014/mpphe.2021-165-168
I. A. Potapova, E.V. Nielina, N. V. Prokhorova
Humic substances represent the most extensive and reactive class of natural compounds. A more nature-saving way is to obtain humus substances from solid combustible minerals and waste from their processing. The ability of these compounds to form stable complexes with heavy metals, which increases with their directed chemical modification, has been experimentally confirmed. The effectiveness of the phenol-formaldehyde condensation method for the modification of initial humus substances has been confirmed. The interaction of humic and himatomelanic acids with formaldehyde leads to an increase in sorption activity in comparison with the initial humic acids with respect to heavy metals. This aspect has been studied and confirmed in model experiments with copper ions. Key words: humic substances, brown coal, humic and himatomelanic acids, directed chemical modification, hydroxymethyl (methyl) derivatives, heavy metals, copper ions, complex formation.
{"title":"Metal storage capacity evaluation of humic and himatomelanic acids hydroxymethyl derivatives obtained from brown coal","authors":"I. A. Potapova, E.V. Nielina, N. V. Prokhorova","doi":"10.34014/mpphe.2021-165-168","DOIUrl":"https://doi.org/10.34014/mpphe.2021-165-168","url":null,"abstract":"Humic substances represent the most extensive and reactive class of natural compounds. A more nature-saving way is to obtain humus substances from solid combustible minerals and waste from their processing. The ability of these compounds to form stable complexes with heavy metals, which increases with their directed chemical modification, has been experimentally confirmed. The effectiveness of the phenol-formaldehyde condensation method for the modification of initial humus substances has been confirmed. The interaction of humic and himatomelanic acids with formaldehyde leads to an increase in sorption activity in comparison with the initial humic acids with respect to heavy metals. This aspect has been studied and confirmed in model experiments with copper ions. \u0000Key words: humic substances, brown coal, humic and himatomelanic acids, directed chemical modification, hydroxymethyl (methyl) derivatives, heavy metals, copper ions, complex formation.","PeriodicalId":378573,"journal":{"name":"Materialy VIII Vserossijskoj konferencii s mezhdunarodnym uchastiem «Mediko-fiziologicheskie problemy jekologii cheloveka»","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128423463","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-13DOI: 10.34014/mpphe.2021-203-206
N.O. Fokeeva, O. Yakovleva
Type 2 diabetes accounts for up to 90% of all diabetes cases. It is known that people with type 2 diabetes are often obese. Long-term complications also include problems with the cardiovascular, nervous and urinary systems. The model of type 2 diabetes mellitus based on a diet rich of fat and carbohydrates was used in the work. We observed a significant increase in the body weight of mice and sugar levels in their blood. Morphometric analysis of the pancreas showed an increase of its mass coefficient. Tactile sensitivity measurement showed an increase in its threshold. The developed model is quite suitable for analyzing the diabetes progression and its side effects on the body. Key words: diabetes mellitus type 2, obesity, pancreas, tactile sensitivity.
{"title":"Progression of a 2nd type diabetes mellitus model on mice with usage of a calorie diet","authors":"N.O. Fokeeva, O. Yakovleva","doi":"10.34014/mpphe.2021-203-206","DOIUrl":"https://doi.org/10.34014/mpphe.2021-203-206","url":null,"abstract":"Type 2 diabetes accounts for up to 90% of all diabetes cases. It is known that people with type 2 diabetes are often obese. Long-term complications also include problems with the cardiovascular, nervous and urinary systems. The model of type 2 diabetes mellitus based on a diet rich of fat and carbohydrates was used in the work. We observed a significant increase in the body weight of mice and sugar levels in their blood. Morphometric analysis of the pancreas showed an increase of its mass coefficient. Tactile sensitivity measurement showed an increase in its threshold. The developed model is quite suitable for analyzing the diabetes progression and its side effects on the body. \u0000Key words: diabetes mellitus type 2, obesity, pancreas, tactile sensitivity.","PeriodicalId":378573,"journal":{"name":"Materialy VIII Vserossijskoj konferencii s mezhdunarodnym uchastiem «Mediko-fiziologicheskie problemy jekologii cheloveka»","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124912140","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-13DOI: 10.34014/mpphe.2021-22-24
O.V. Baranova, K.V. Romanov, N. G. Dmitrieva
The features of improving resistance to gravitational overload and motion sickness in aviation specialists by means of physical training are considered, the orientation, structure, content and methodology of physical training are determined. The data obtained allow us to conclude that the developed training methods have a positive effect on many functional indicators of the body of pilots, which contributes to adaptation to flight activities in a short time. Key words: gravitational overload, motion sickness, physical training, flight activity.
{"title":"Physical training as a means of increasing the body's resistance to adverse factors","authors":"O.V. Baranova, K.V. Romanov, N. G. Dmitrieva","doi":"10.34014/mpphe.2021-22-24","DOIUrl":"https://doi.org/10.34014/mpphe.2021-22-24","url":null,"abstract":"The features of improving resistance to gravitational overload and motion sickness in aviation specialists by means of physical training are considered, the orientation, structure, content and methodology of physical training are determined. The data obtained allow us to conclude that the developed training methods have a positive effect on many functional indicators of the body of pilots, which contributes to adaptation to flight activities in a short time. \u0000Key words: gravitational overload, motion sickness, physical training, flight activity.","PeriodicalId":378573,"journal":{"name":"Materialy VIII Vserossijskoj konferencii s mezhdunarodnym uchastiem «Mediko-fiziologicheskie problemy jekologii cheloveka»","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122562704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-13DOI: 10.34014/mpphe.2021-150-153
N. Mishchenko, S.V. Lyalyakin, L. Shirkin, E. Knyazeva, T. Trifonova
In the course of the study, the adaptive state of VlSU students was assessed by temporal, spectral, cardiointervalographic and integral indicators of heart rate variability. The characteristic of the state of the regulatory systems of students is given. The obtained results can serve as a certain addition to the understanding of the peculiarities of the process of adaptation of young students in the conditions of studying at higher school. Key words: heart rate variability (HRV), students, adaptation, regulatory systems, sympathetic and parasympathetic influence.
{"title":"Assessment of the adaptive state of students based on the analysis of heart rate variability indicators","authors":"N. Mishchenko, S.V. Lyalyakin, L. Shirkin, E. Knyazeva, T. Trifonova","doi":"10.34014/mpphe.2021-150-153","DOIUrl":"https://doi.org/10.34014/mpphe.2021-150-153","url":null,"abstract":"In the course of the study, the adaptive state of VlSU students was assessed by temporal, spectral, cardiointervalographic and integral indicators of heart rate variability. The characteristic of the state of the regulatory systems of students is given. The obtained results can serve as a certain addition to the understanding of the peculiarities of the process of adaptation of young students in the conditions of studying at higher school. \u0000Key words: heart rate variability (HRV), students, adaptation, regulatory systems, sympathetic and parasympathetic influence.","PeriodicalId":378573,"journal":{"name":"Materialy VIII Vserossijskoj konferencii s mezhdunarodnym uchastiem «Mediko-fiziologicheskie problemy jekologii cheloveka»","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122581081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-13DOI: 10.34014/mpphe.2021-11-14
Zh.A. Antonova
The investigation was carried out on the basis of analysis of data from stationary monitoring stations for atmospheric pollution during two-year period (2020-2021) and the city's zoning scheme. As a result of the investigation priority pollutants were identified for the right-bank and left-bank parts of Ulyanovsk. According to the list of priority pollutants, a number of prospective sources of these emissions were identified. Key words: stationary observation posts, priority pollutants, pollution sources, mobile posts, environmental standards.
{"title":"Comparative characteristic of atmospheric air quality on the right-bank and left-bank parts of Ulyanovsk","authors":"Zh.A. Antonova","doi":"10.34014/mpphe.2021-11-14","DOIUrl":"https://doi.org/10.34014/mpphe.2021-11-14","url":null,"abstract":"The investigation was carried out on the basis of analysis of data from stationary monitoring stations for atmospheric pollution during two-year period (2020-2021) and the city's zoning scheme. As a result of the investigation priority pollutants were identified for the right-bank and left-bank parts of Ulyanovsk. According to the list of priority pollutants, a number of prospective sources of these emissions were identified. \u0000Key words: stationary observation posts, priority pollutants, pollution sources, mobile posts, environmental standards.","PeriodicalId":378573,"journal":{"name":"Materialy VIII Vserossijskoj konferencii s mezhdunarodnym uchastiem «Mediko-fiziologicheskie problemy jekologii cheloveka»","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121686477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-13DOI: 10.34014/mpphe.2021-206-208
O. Frolova, S. Ermolaeva, I.A. Tumozov
The object of the study of enzymatic antioxidants in the blood serum of white mice were 30 outbred white male and female mice of the same age and approximately of the same weight. The animals were divided into 3 groups: one control group and two experimental ones in which the mice consumed water with a high content of total iron and manganese (II) ion (over 5 MPC).This study revealed that the activity of glutathione transferase as a marker of antioxidant defense increased among the male mice in the experimental group after experiencing a 12-week-long intoxication, however the level of malondialdehyde in their blood serum indicated insignificant oxidative stress. Keywords: iron, manganese, drinking water, glutathione transferase, malondialdehyde, antioxidant defense, oxidative stress.
{"title":"Oxidative stress and antioxidant enzyme levelsin the blood serum of white mice when exposed to iron and manganese in drinking water under experimental conditions","authors":"O. Frolova, S. Ermolaeva, I.A. Tumozov","doi":"10.34014/mpphe.2021-206-208","DOIUrl":"https://doi.org/10.34014/mpphe.2021-206-208","url":null,"abstract":"The object of the study of enzymatic antioxidants in the blood serum of white mice were 30 outbred white male and female mice of the same age and approximately of the same weight. The animals were divided into 3 groups: one control group and two experimental ones in which the mice consumed water with a high content of total iron and manganese (II) ion (over 5 MPC).This study revealed that the activity of glutathione transferase as a marker of antioxidant defense increased among the male mice in the experimental group after experiencing a 12-week-long intoxication, however the level of malondialdehyde in their blood serum indicated insignificant oxidative stress. \u0000Keywords: iron, manganese, drinking water, glutathione transferase, malondialdehyde, antioxidant defense, oxidative stress.","PeriodicalId":378573,"journal":{"name":"Materialy VIII Vserossijskoj konferencii s mezhdunarodnym uchastiem «Mediko-fiziologicheskie problemy jekologii cheloveka»","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129942584","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-13DOI: 10.34014/mpphe.2021-139-142
A. Maksimov
The paper considers modern approaches to the zoning of territories and the selection of people for life in extreme environmental conditions, taking into account modern geopolitical challenges. It is shown that it is possible, based on the allostasis concept, to conduct not only the selection of persons with a high level of nonspecific resistance, but also to quantify the degree of extremity of environmental factors using the standard represpiration test. Key words: adaptation, extreme conditions, selection, hypoxia, cold, rerespiration, allostatic load.
{"title":"Modern problems of regionalization of territories and human adaptation in regions with extreme natural and climatic conditions","authors":"A. Maksimov","doi":"10.34014/mpphe.2021-139-142","DOIUrl":"https://doi.org/10.34014/mpphe.2021-139-142","url":null,"abstract":"The paper considers modern approaches to the zoning of territories and the selection of people for life in extreme environmental conditions, taking into account modern geopolitical challenges. It is shown that it is possible, based on the allostasis concept, to conduct not only the selection of persons with a high level of nonspecific resistance, but also to quantify the degree of extremity of environmental factors using the standard represpiration test. \u0000Key words: adaptation, extreme conditions, selection, hypoxia, cold, rerespiration, allostatic load.","PeriodicalId":378573,"journal":{"name":"Materialy VIII Vserossijskoj konferencii s mezhdunarodnym uchastiem «Mediko-fiziologicheskie problemy jekologii cheloveka»","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130642948","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-13DOI: 10.34014/mpphe.2021-36-40
M. Bocharov
The influence of acute normobaric hypoxia (ANH) on the male heart chronotropic effects was studied. Thus, a mild degree of ANH (14.5 % O2, 20 min), causing a decrease in blood oxygenation by 6.3 abs. %, accompanied by an initial (by 5 min) decrease in the RR and QT intervals. The average degree of ANH (12.3% O2) leads to a decrease in blood oxygenation by 19.7 abs. %. At the same time, in inverse relationship to the developing hypoxemia, RR and QT significantly decrease. Corrected values (Pc, PQc, QRSc, QTc) increase during the action period of an average degree of hypoxia, indicating an increase in the proportion of atrial contraction time, atrioventricular conduction of excitation and electrical ventricular systole in the total RR duration, which, apparently, provides optimal systolic heart effect. Key words: human, hypoxia, blood oxygenation, cardiointervals.
{"title":"Temporary cardiointerval organization with varying degrees of acute normobaric hypoxia in a healthy person","authors":"M. Bocharov","doi":"10.34014/mpphe.2021-36-40","DOIUrl":"https://doi.org/10.34014/mpphe.2021-36-40","url":null,"abstract":"The influence of acute normobaric hypoxia (ANH) on the male heart chronotropic effects was studied. Thus, a mild degree of ANH (14.5 % O2, 20 min), causing a decrease in blood oxygenation by 6.3 abs. %, accompanied by an initial (by 5 min) decrease in the RR and QT intervals. The average degree of ANH (12.3% O2) leads to a decrease in blood oxygenation by 19.7 abs. %. At the same time, in inverse relationship to the developing hypoxemia, RR and QT significantly decrease. Corrected values (Pc, PQc, QRSc, QTc) increase during the action period of an average degree of hypoxia, indicating an increase in the proportion of atrial contraction time, atrioventricular conduction of excitation and electrical ventricular systole in the total RR duration, which, apparently, provides optimal systolic heart effect. \u0000Key words: human, hypoxia, blood oxygenation, cardiointervals.","PeriodicalId":378573,"journal":{"name":"Materialy VIII Vserossijskoj konferencii s mezhdunarodnym uchastiem «Mediko-fiziologicheskie problemy jekologii cheloveka»","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116138477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-13DOI: 10.34014/mpphe.2021-81-84
E. Gorbaneva, M.P. Mitsulina, Yu.V. Ryabchuk
In this study, using the example of the Cooper test, pulse zones were identified in percentage ratio, which allow indirectly judging the contribution of a particular energy supply system for each athlete during cyclic work. Keywords: Cooper's test, energy supply, athletes-game players, pulse zones, heart rate monitoring, Polar.
{"title":"Study of the energy supply of muscular activity in the Cooper test among sportsmen-gamers according to the individual heart rate response to the load","authors":"E. Gorbaneva, M.P. Mitsulina, Yu.V. Ryabchuk","doi":"10.34014/mpphe.2021-81-84","DOIUrl":"https://doi.org/10.34014/mpphe.2021-81-84","url":null,"abstract":"In this study, using the example of the Cooper test, pulse zones were identified in percentage ratio, which allow indirectly judging the contribution of a particular energy supply system for each athlete during cyclic work. \u0000Keywords: Cooper's test, energy supply, athletes-game players, pulse zones, heart rate monitoring, Polar.","PeriodicalId":378573,"journal":{"name":"Materialy VIII Vserossijskoj konferencii s mezhdunarodnym uchastiem «Mediko-fiziologicheskie problemy jekologii cheloveka»","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116490391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-13DOI: 10.34014/mpphe.2021-246-249
A. V. Shulepov, I. Shperling, Yu. V. Yurkevich, N. V. Shperling
The experiments were performed on 280 male Wistar rats weighing 300-340 g. The design of the study included: modeling of compression injury of the soft tissues of the thigh, local injection of the preparation of hyaluronic acid "Gialift 3.5" into the area of damage 3 hours after the cessation of compression, taking into account the results after 7, 14 and 28 days. The introduction of hyaluronic acid into the area of compression injury of soft tissues reduces the severity of myoglobinemia, increases the immunohistochemical density of VEGF-positive cells, improves the perfusion characteristics of microcirculation, oxygen saturation, and specific oxygen consumption by tissues. Keywords: traumatic muscle ischemia, hyaluronic acid, myoglobin, microcirculation, metabolism, laser Doppler flowmetry, morphometry.
{"title":"The effectiveness of early local administration of hyaluronic acid in experimental traumatic ischemia of the limb muscles","authors":"A. V. Shulepov, I. Shperling, Yu. V. Yurkevich, N. V. Shperling","doi":"10.34014/mpphe.2021-246-249","DOIUrl":"https://doi.org/10.34014/mpphe.2021-246-249","url":null,"abstract":"The experiments were performed on 280 male Wistar rats weighing 300-340 g. The design of the study included: modeling of compression injury of the soft tissues of the thigh, local injection of the preparation of hyaluronic acid \"Gialift 3.5\" into the area of damage 3 hours after the cessation of compression, taking into account the results after 7, 14 and 28 days. The introduction of hyaluronic acid into the area of compression injury of soft tissues reduces the severity of myoglobinemia, increases the immunohistochemical density of VEGF-positive cells, improves the perfusion characteristics of microcirculation, oxygen saturation, and specific oxygen consumption by tissues. \u0000Keywords: traumatic muscle ischemia, hyaluronic acid, myoglobin, microcirculation, metabolism, laser Doppler flowmetry, morphometry.","PeriodicalId":378573,"journal":{"name":"Materialy VIII Vserossijskoj konferencii s mezhdunarodnym uchastiem «Mediko-fiziologicheskie problemy jekologii cheloveka»","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134046590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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