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O N Ragozin

Biographic Data

ID771640
NAMEO N Ragozin
GIVEN NAMESO N
FAMILY NAMERagozin
SIGNATURERAGOZIN O N
AFFILIATIONSKhanty-Mansiysk State Medical Academy
ORCID0000-0002-5318-9623
VERIFIEDYes
TOTAL WORKS16
TOTAL CITATIONS4
AUTHOR COUNT16
EDITOR COUNT0
FIRST PUBLICATION YEAR2016
LATEST PUBLICATION YEAR2026
H-INDEX1
  • Chronobiological characteristics of hemodynamic parameters in residents of northern regions with different blood pressure levels

    Open Access•Daniil V Surinov, O N Ragozin et al.•ARTICLE•Ekologiya Cheloveka (Human Ecology•2026

    Background: The prevalence of hypertension in northern regions is higher than the Russian national average, at 49% versus 45%. The harsh climate of the North contributes to maladaptation manifested as desynchronosis. It is therefore advisable to evaluate the role of circadian rhythm disturbances in regulating blood pressure in the pathogenesis of hypertension. Aim: This study aimed to investigate sex- and age-related variations in circadian rhyth…

  • Relationship between variations in population health disorders in a subarctic region and heliogeophysical factors and oxygen status of surface air under different levels of solar activity

    Open Access•O N Ragozin, E Yu Shalamova et al.•ARTICLE•Ekologiya Cheloveka (Human Ecology•2025

    BACKGROUND: It is generally recognized that human health depends on the changes of space weather. However, the cyclic interactions of specific groups of diseases with the main components of solar radiation and its derivatives remain unresolved. AIM: The work aimed to assess the stability of time series of health disorders in the northern population, as well as linear and phase synchronization with heliogeophysical factors and oxygen status depend…

  • Circannual variations in partial oxygen density depending on solar activity level and climatic zone

    Open Access•O N Ragozin, Livhuwani Muthelo et al.•ARTICLE•Ekologiya Cheloveka (Human Ecology•2025•References: 10

    BACKGROUND: Some medical weather classifications identify reduced partial oxygen density in the air as a key parameter affecting human well-being. This parameter can be modulated not only by meteorological factors but also by the helio-geophysical environment. It should be noted that synoptic combinations with elevated oxygen content are not considered among the weather types, although several studies have shown that hyperoxia can have adverse ef…

  • The contribution of weather factors to seasonal variations in oxygen partial density in different climatic zones

    Open Access•O N Ragozin, И В Радыш et al.•ARTICLE•Ekologiya Cheloveka (Human Ecology•2025•References: 9

    Background: Currently, there is growing concern about changes in the oxygen content in the surface air layer. There are weather classifications where the determining meteotropic effect affecting human health is the value of oxygen partial density, but among these types of weather, hyperoxia situations are not considered, although in a number of studies attention has been drawn to the negative impact on human health of high oxygen content in inhal…

  • Influence of solar radiation components on partial oxygen density in the surface air layer in subarctic and subtropical regions

    Open Access•O N Ragozin, Livhuwani Muthelo et al.•ARTICLE•Ekologiya Cheloveka (Human Ecology•2025•References: 10

    BACKGROUND: Solar radiation consists of electromagnetic radiation and the solar wind. It becomes nonlinear during solar flares, with increased wave radiation and the emission of large amounts of charged particles. Increased solar radiation intensity alters the Earth’s light and thermal balance and geomagnetic activity, affecting both weather and oxygen status.AIM: To assess the effect of solar radiation components on changes in partial oxygen den…

  • Natural and climatic conditions and health status of the indigenous peoples of the North (on the example of Khanty-Mansiysk)

    Open Access•O N Ragozin, E Yu Shalamova et al.•ARTICLE•Bulletin of Ugric studies•2024

    an urgent problem of medicine in the North is the preservation of the health of indigenous peoples. The study confirmed the presence of the influence of weather and helioclimatic factors on the morphofunctional features of the body of the indigenous population. It allowed us to conclude that it is advisable to carry out medical, technological and psychological support of violations of time organization of functions among the inhabitants of the No…

  • Assessment of the physical development of children of indigenous peoples of the North with consideration of morphological and functional parameters

    Open Access•O N Ragozin•ARTICLE•Bulletin of Ugric studies•2023

    Введение.В статье рассматриваются особенности физического развития детей коренных малочисленных народов Севера в периоде новорождённости.При оценке уровня и гармоничности физического развития учитывались как морфологические, так и функциональные показатели

  • Gender and age-specific patterns of ambulance calls in Khanty-Mansiysk depending on the epidemiological situation

    Open Access•O N Ragozin, A B Gudkov et al.•ARTICLE•Ekologiya Cheloveka (Human Ecology•2023•References: 23

    BACKGROUND: The number of ambulance calls serves as an objective indicator of the disruption in population health associated with maladaptation or an increase in health disorders in harsh conditions of the North. This becomes especially apparent when the epidemiological situation shifts, highlighting the importance of this issue. AIM: To study the gender- and age-specific patterns of emergency calls for ambulance services in the population of Kha…

  • Photoperiodic stability and distribution of chronotypes in young residents of the North with different organization of activities

    Open Access•O N Ragozin, A B Gudkov et al.•ARTICLE•Ekologiya Cheloveka (Human Ecology•2022•References: 14

    AIM: To assess individual subjective chronotypic properties in residents of Khanty-Mansiysk under the influence of such biotropic and social stress factors as regular daytime and aperiodically presented shift daytime and nighttime employment.MATERIALS AND METHODS: This study involved students (100 girls and 53 boys) of Khanty-Mansi Autonomous Okrug Yugra with a daily study load and employees of the Ambulance station (31 women and 26 men) in Khant…

  • Temporal variations in mortality from the main causes of death in 20142018 in Khanty-Mansiysk autonomous district-Ugra (Western Siberia)

    Open Access•O N Ragozin, E Yu Shalamova et al.•ARTICLE•Ekologiya Cheloveka (Human Ecology•2020•References: 6

    The aim of this work is to analyze the temporal variations in mortality from the main groups of diseases and external causes in the period 2014-2018 in Khanty-Mansiysk Autonomous Okrug - Ugra (Western Siberia). Methods. Data on mortality wereobtained from the Medical Information and Analytical Center in Khanty-Mansiysk. To test the hypothesis about cyclic variations in mortality, wavelet analysis was applied. Results. Fluctuations in death rates …

  • The influence of variations in solar activity on the health of population of the Northern region

    Open Access•E R Ragozina, Vladimir I Korchin et al.•ARTICLE•Bulletin of Ugric studies•2019•Cited by: 1

    Введение.Насколько влияет солнечная активность циркумполярных областей на возникновение и обострения заболеваний населения северного региона, какова чувствительность и специфичность патологии к гелиофизическим факторам; возникает ли реакция на экзогенный фактор in situ, опережает его или запаздывает?Все эти вопросы и определили актуальность данного исследования

  • Factor Analysis of Hemodynamics Daily Parameters in Students of the Northern Medical University

    Open Access•E Yu Shalamova, R Safonova et al.•ARTICLE•Ekologiya Cheloveka (Human Ecology•2018•References: 7

    The purpose was to find out the hidden common factors characterizing the relationship between the parameters of daily hemodynamics in students of the northern medical university. Methods. A factor analysis of hemodynamics data obtained during the daily monitoring of arterial pressure and heart rate in students of Khanty-Mansiysk State Medical Academy (35 boys and 61 girls) was carried out. Results. The analysis revealed two factors in groups. Acc…

  • Intersystem Interrelations of Functional Parameters and Psychosocial Characteristics of Students of Medical University in the North

    Open Access•E Yu Shalamova, R Safonova et al.•ARTICLE•Ekologiya Cheloveka (Human Ecology•2018•References: 9

    The aim of the study is a possibility justification of the functional state correction of students in the learning environment through development of adaptive behavior skills in stress and increase of subjective evaluation of life quality. Methods: research and analysis of cardiac rhythm variability parameters, functional state of the central nervous system, daily monitoring of heart rate and blood pressure, indicators of life quality associated …

  • Wavelet Analysis of Climate Factors Variations of Khanty-Mansiysk City

    Open Access•O N Ragozin, Vladimir I Korchin et al.•ARTICLE•Ekologiya Cheloveka (Human Ecology•2017•Cited by: 1•References: 4

    The aim of this study is to identify the complex temporary cycles in fluctuations of climatic factors in Khanty-Mansiysk using wavelet analysis. The dynamics of temperature fluctuations in the period 2001 and 2014 shows a significant circannual cycle. Variations of barometric pressure are polycyclic. Descending capacity of rhythms with a period of 5.57 years; 1.02 years and rhythms close to the semiannual, seasonal and cirradian: 173.4 days; 109.…

  • Intersexual Differences in Daily Variations of the Central Hemodynamic Parameters in Students of the Northern Medical University

    Open Access•E Yu Shalamova, V R Safonova et al.•ARTICLE•Ekologiya Cheloveka (Human Ecology•2016

    Parameters of central hemodynamics in young men and women - junior students of the medical faculty of Khanty-Mansiysk State Medical Academy have been studied. As a result of daily monitoring, the average daily indicators of heart rate (HR), systolic (SBP) and diastolic (DBP), mean arterial pressure (MAP), pulse (PP) blood pressure, vegetative index Kerdo (VIK) were detected. The values of HR, SBP, DBP, VIK, SBP time index, DBP time index, SBP var…

  • Biorythmological Particulars and Elements of the Desynchronosis of the Central Hemodynamics Parameters in the Students of the Northern Medical Higher Educational Institution

    Open Access•E Yu Shalamova, O N Ragozin et al.•ARTICLE•Ekologiya Cheloveka (Human Ecology•2016•Cited by: 2

    The parameters of central hemodynamics in young men and women, junior students of the medical faculty of the Khanty-Mansiysk State Medical Academy were analyzed in this study. Values of cardio hemodynamic indicators and vegetation index Kerdo are obtained by 24-hour monitoring. Arrhythmic type prevailed among boys and girls; the second largest type was evening type; the number of students with morning chronotype was limited. Significant differenc…

  • Biorythmological Particulars and Elements of the Desynchronosis of the Central Hemodynamics Parameters in the Students of the Northern Medical Higher Educational Institution

    Open Access•E Yu Shalamova, O N Ragozin et al.•ARTICLE•Ekologiya Cheloveka (Human Ecology•2016•Cited by: 2

    The parameters of central hemodynamics in young men and women, junior students of the medical faculty of the Khanty-Mansiysk State Medical Academy were analyzed in this study. Values of cardio hemodynamic indicators and vegetation index Kerdo are obtained by 24-hour monitoring. Arrhythmic type prevailed among boys and girls; the second largest type was evening type; the number of students with morning chronotype was limited. Significant differenc…

  • The influence of variations in solar activity on the health of population of the Northern region

    Open Access•E R Ragozina, Vladimir I Korchin et al.•ARTICLE•Bulletin of Ugric studies•2019•Cited by: 1

    Введение.Насколько влияет солнечная активность циркумполярных областей на возникновение и обострения заболеваний населения северного региона, какова чувствительность и специфичность патологии к гелиофизическим факторам; возникает ли реакция на экзогенный фактор in situ, опережает его или запаздывает?Все эти вопросы и определили актуальность данного исследования

  • Wavelet Analysis of Climate Factors Variations of Khanty-Mansiysk City

    Open Access•O N Ragozin, Vladimir I Korchin et al.•ARTICLE•Ekologiya Cheloveka (Human Ecology•2017•Cited by: 1•References: 4

    The aim of this study is to identify the complex temporary cycles in fluctuations of climatic factors in Khanty-Mansiysk using wavelet analysis. The dynamics of temperature fluctuations in the period 2001 and 2014 shows a significant circannual cycle. Variations of barometric pressure are polycyclic. Descending capacity of rhythms with a period of 5.57 years; 1.02 years and rhythms close to the semiannual, seasonal and cirradian: 173.4 days; 109.…

  • Intersexual Differences in Daily Variations of the Central Hemodynamic Parameters in Students of the Northern Medical University

    Open Access•E Yu Shalamova, V R Safonova et al.•ARTICLE•Ekologiya Cheloveka (Human Ecology•2016

    Parameters of central hemodynamics in young men and women - junior students of the medical faculty of Khanty-Mansiysk State Medical Academy have been studied. As a result of daily monitoring, the average daily indicators of heart rate (HR), systolic (SBP) and diastolic (DBP), mean arterial pressure (MAP), pulse (PP) blood pressure, vegetative index Kerdo (VIK) were detected. The values of HR, SBP, DBP, VIK, SBP time index, DBP time index, SBP var…

  • Biorythmological Particulars and Elements of the Desynchronosis of the Central Hemodynamics Parameters in the Students of the Northern Medical Higher Educational Institution

    Open Access•E Yu Shalamova, O N Ragozin et al.•ARTICLE•Ekologiya Cheloveka (Human Ecology•2016•Cited by: 2

    The parameters of central hemodynamics in young men and women, junior students of the medical faculty of the Khanty-Mansiysk State Medical Academy were analyzed in this study. Values of cardio hemodynamic indicators and vegetation index Kerdo are obtained by 24-hour monitoring. Arrhythmic type prevailed among boys and girls; the second largest type was evening type; the number of students with morning chronotype was limited. Significant differenc…

  • Wavelet Analysis of Climate Factors Variations of Khanty-Mansiysk City

    Open Access•O N Ragozin, Vladimir I Korchin et al.•ARTICLE•Ekologiya Cheloveka (Human Ecology•2017•Cited by: 1•References: 4

    The aim of this study is to identify the complex temporary cycles in fluctuations of climatic factors in Khanty-Mansiysk using wavelet analysis. The dynamics of temperature fluctuations in the period 2001 and 2014 shows a significant circannual cycle. Variations of barometric pressure are polycyclic. Descending capacity of rhythms with a period of 5.57 years; 1.02 years and rhythms close to the semiannual, seasonal and cirradian: 173.4 days; 109.…

  • Factor Analysis of Hemodynamics Daily Parameters in Students of the Northern Medical University

    Open Access•E Yu Shalamova, R Safonova et al.•ARTICLE•Ekologiya Cheloveka (Human Ecology•2018•References: 7

    The purpose was to find out the hidden common factors characterizing the relationship between the parameters of daily hemodynamics in students of the northern medical university. Methods. A factor analysis of hemodynamics data obtained during the daily monitoring of arterial pressure and heart rate in students of Khanty-Mansiysk State Medical Academy (35 boys and 61 girls) was carried out. Results. The analysis revealed two factors in groups. Acc…

  • Intersystem Interrelations of Functional Parameters and Psychosocial Characteristics of Students of Medical University in the North

    Open Access•E Yu Shalamova, R Safonova et al.•ARTICLE•Ekologiya Cheloveka (Human Ecology•2018•References: 9

    The aim of the study is a possibility justification of the functional state correction of students in the learning environment through development of adaptive behavior skills in stress and increase of subjective evaluation of life quality. Methods: research and analysis of cardiac rhythm variability parameters, functional state of the central nervous system, daily monitoring of heart rate and blood pressure, indicators of life quality associated …

  • The influence of variations in solar activity on the health of population of the Northern region

    Open Access•E R Ragozina, Vladimir I Korchin et al.•ARTICLE•Bulletin of Ugric studies•2019•Cited by: 1

    Введение.Насколько влияет солнечная активность циркумполярных областей на возникновение и обострения заболеваний населения северного региона, какова чувствительность и специфичность патологии к гелиофизическим факторам; возникает ли реакция на экзогенный фактор in situ, опережает его или запаздывает?Все эти вопросы и определили актуальность данного исследования

  • Temporal variations in mortality from the main causes of death in 20142018 in Khanty-Mansiysk autonomous district-Ugra (Western Siberia)

    Open Access•O N Ragozin, E Yu Shalamova et al.•ARTICLE•Ekologiya Cheloveka (Human Ecology•2020•References: 6

    The aim of this work is to analyze the temporal variations in mortality from the main groups of diseases and external causes in the period 2014-2018 in Khanty-Mansiysk Autonomous Okrug - Ugra (Western Siberia). Methods. Data on mortality wereobtained from the Medical Information and Analytical Center in Khanty-Mansiysk. To test the hypothesis about cyclic variations in mortality, wavelet analysis was applied. Results. Fluctuations in death rates …

  • Photoperiodic stability and distribution of chronotypes in young residents of the North with different organization of activities

    Open Access•O N Ragozin, A B Gudkov et al.•ARTICLE•Ekologiya Cheloveka (Human Ecology•2022•References: 14

    AIM: To assess individual subjective chronotypic properties in residents of Khanty-Mansiysk under the influence of such biotropic and social stress factors as regular daytime and aperiodically presented shift daytime and nighttime employment.MATERIALS AND METHODS: This study involved students (100 girls and 53 boys) of Khanty-Mansi Autonomous Okrug Yugra with a daily study load and employees of the Ambulance station (31 women and 26 men) in Khant…

  • Assessment of the physical development of children of indigenous peoples of the North with consideration of morphological and functional parameters

    Open Access•O N Ragozin•ARTICLE•Bulletin of Ugric studies•2023

    Введение.В статье рассматриваются особенности физического развития детей коренных малочисленных народов Севера в периоде новорождённости.При оценке уровня и гармоничности физического развития учитывались как морфологические, так и функциональные показатели

  • Gender and age-specific patterns of ambulance calls in Khanty-Mansiysk depending on the epidemiological situation

    Open Access•O N Ragozin, A B Gudkov et al.•ARTICLE•Ekologiya Cheloveka (Human Ecology•2023•References: 23

    BACKGROUND: The number of ambulance calls serves as an objective indicator of the disruption in population health associated with maladaptation or an increase in health disorders in harsh conditions of the North. This becomes especially apparent when the epidemiological situation shifts, highlighting the importance of this issue. AIM: To study the gender- and age-specific patterns of emergency calls for ambulance services in the population of Kha…

  • Natural and climatic conditions and health status of the indigenous peoples of the North (on the example of Khanty-Mansiysk)

    Open Access•O N Ragozin, E Yu Shalamova et al.•ARTICLE•Bulletin of Ugric studies•2024

    an urgent problem of medicine in the North is the preservation of the health of indigenous peoples. The study confirmed the presence of the influence of weather and helioclimatic factors on the morphofunctional features of the body of the indigenous population. It allowed us to conclude that it is advisable to carry out medical, technological and psychological support of violations of time organization of functions among the inhabitants of the No…

  • Relationship between variations in population health disorders in a subarctic region and heliogeophysical factors and oxygen status of surface air under different levels of solar activity

    Open Access•O N Ragozin, E Yu Shalamova et al.•ARTICLE•Ekologiya Cheloveka (Human Ecology•2025

    BACKGROUND: It is generally recognized that human health depends on the changes of space weather. However, the cyclic interactions of specific groups of diseases with the main components of solar radiation and its derivatives remain unresolved. AIM: The work aimed to assess the stability of time series of health disorders in the northern population, as well as linear and phase synchronization with heliogeophysical factors and oxygen status depend…

  • Circannual variations in partial oxygen density depending on solar activity level and climatic zone

    Open Access•O N Ragozin, Livhuwani Muthelo et al.•ARTICLE•Ekologiya Cheloveka (Human Ecology•2025•References: 10

    BACKGROUND: Some medical weather classifications identify reduced partial oxygen density in the air as a key parameter affecting human well-being. This parameter can be modulated not only by meteorological factors but also by the helio-geophysical environment. It should be noted that synoptic combinations with elevated oxygen content are not considered among the weather types, although several studies have shown that hyperoxia can have adverse ef…

  • The contribution of weather factors to seasonal variations in oxygen partial density in different climatic zones

    Open Access•O N Ragozin, И В Радыш et al.•ARTICLE•Ekologiya Cheloveka (Human Ecology•2025•References: 9

    Background: Currently, there is growing concern about changes in the oxygen content in the surface air layer. There are weather classifications where the determining meteotropic effect affecting human health is the value of oxygen partial density, but among these types of weather, hyperoxia situations are not considered, although in a number of studies attention has been drawn to the negative impact on human health of high oxygen content in inhal…

  • Influence of solar radiation components on partial oxygen density in the surface air layer in subarctic and subtropical regions

    Open Access•O N Ragozin, Livhuwani Muthelo et al.•ARTICLE•Ekologiya Cheloveka (Human Ecology•2025•References: 10

    BACKGROUND: Solar radiation consists of electromagnetic radiation and the solar wind. It becomes nonlinear during solar flares, with increased wave radiation and the emission of large amounts of charged particles. Increased solar radiation intensity alters the Earth’s light and thermal balance and geomagnetic activity, affecting both weather and oxygen status.AIM: To assess the effect of solar radiation components on changes in partial oxygen den…

  • Chronobiological characteristics of hemodynamic parameters in residents of northern regions with different blood pressure levels

    Open Access•Daniil V Surinov, O N Ragozin et al.•ARTICLE•Ekologiya Cheloveka (Human Ecology•2026

    Background: The prevalence of hypertension in northern regions is higher than the Russian national average, at 49% versus 45%. The harsh climate of the North contributes to maladaptation manifested as desynchronosis. It is therefore advisable to evaluate the role of circadian rhythm disturbances in regulating blood pressure in the pathogenesis of hypertension. Aim: This study aimed to investigate sex- and age-related variations in circadian rhyth…

Human Health and Disease (10 works) · Healthcare Systems and Public Health (8 works) · Medicine (8 works) · Geography (6 works) · Internal Medicine (6 works) · Blood pressure (5 works) · Environmental Science (5 works) · Psychology (5 works) · Rhythm (5 works) · Spaceflight effects on biology (5 works)

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