scholarly journals Assessment of the pathogenesis of visual impairment naval specialists of the arctic zone of the russian federation during the polar night

2022 ◽  
Vol 7 (4) ◽  
pp. 84-89
Author(s):  
A. N. Zhekalov ◽  
I. Yu. Mishin

Introduction. The climatogeographic conditions of the Arctic Zone of the Russian Federation are determined by the proximity to the North Pole of the Earth and are characterized by a number of certain cyclical changes that do not take place in the middle latitudes — the polar day and the polar night. The high-latitude location determines the long period of the polar night, lasting from 98 to 133 days. Being the hallmark of the Arctic, the polar night is an integral part of service in the Arctic region, it has an impact on every geographically involved person, without exception.Purpose of work. To assess the mechanisms of the pathogenesis of visual impairment that develop during the polar night in naval specialists.Materials and research methods. The study involved 92 people. The surveyed contingent is male contract servicemen of the Navy, aged from 21 to 45 years. The analysis of the morbidity structure according to the ophthalmological profile was carried out during the polar night from November 20, 2020 to January 20, 2021 using an epidemiological method of a case-control study. The assessment of unfavorable climatic and geographical factors of the Arctic region during the polar night was carried out by the method of analytical observation and data recording from November 20, 2020 to January 20, 2021 using the example of the Novaya Zemlya archipelago, Belushya Guba village. On the basis of an integral analysis of epidemiological indicators, climatogeographic and clinical and morphological observations, a pathophysiological assessment of diseases of the organ of vision, developing during the polar night in naval specialists, was carried out.Research results show a high level of ophthalmological morbidity during the polar night among naval specialists serving on the Novaya Zemlya archipelago.Conclusions. Climatogeographic factors of the Arctic region have a polyetiological effect on the formation of mechanisms of pathogenesis of disorders of visual functions that develop in naval specialists during the polar night.

2020 ◽  
Vol 161 ◽  
pp. 01018 ◽  
Author(s):  
E V Vorontsova ◽  
A L Vorontsov

The article presents an assessment of the current ecological status of the Arctic zone of the Russian Federation as a promising area of active industrial development. Acknowledging the current negative environmental consequences of human activities in the Arctic, the authors raise the issue of environmental risks in the Arctic region, which inevitably arise due to the intensification of resource extraction in these areas. From the standpoint of a risk-based approach, the authors insist on the need to take into account the environmental safety requirements in the Arctic region when conducting any kind of business and other activities, taking into account the particular vulnerability of the Arctic ecosystems and the climate-forming significance of this region for the entire planet. In their opinion, at present, the problem of environmental safety in the Russian Arctic is aggravated by several unfavorable factors: environmental damage accumulated over a long period of previous economic and military activities; the lack of the necessary legal framework to regulate resource extraction activities in the region, taking into account new environmental requirements; Russia’s lack of the latest eco-friendly technologies for offshore hydrocarbon production. Each of these factors is capable of provoking irreversible environmental consequences, and, accordingly, each of them should be subjected to in-depth scientific evaluation in the framework of strategic and project-economic planning.


Author(s):  
Tatiana Nokelaynen

Transport accessibility is one of the main categories in transport research and planning of socio-economic development of territories. For Russia, which has the largest area of the northern and arctic territories, this problem is especially urgent. The presence and condition of the road network determines the territorial integrity and unity of the economic space, therefore fulfilling the most important strategic task of the spatial integration of the country. Automobile transport in the Arctic zone of the Russian Federation is poorly developed and is characterized by a low density of the public network. Its main features are the disunity of the road network, the heterogeneous degree of transport development of the territories and the noticeable role of winter roads in the road infrastructure. An integral part of the transport logistics of the Arctic regions of Russia are winter roads, which allow transportation in the winter season at the lowest cost. The purpose of this study is to develop a database structure and thematic mapping of automobile roads in the Arctic zone of the Russian Federation, taking into account the seasonality of their operation. As a result of this work, a classification of winter automobile roads and ice crossings of the Arctic territories was developed and an overview map “Seasonal road transport accessibility of the Arctic region of Russia” at a scale of 1:20,000,000 was compiled. The map demonstrates the contrast between the relatively good winter transport development of the territory and summer impassability. On the basis of statistical materials, maps “Density of all-season motorable roads” and “Level of motorization” were compiled, which give an idea of the differentiation of the regions of the Arctic zone of the Russian Federation by these indicators. A high level of motorization significantly exceeds the capacity of the existing roads. This is due to the fact that off-road transport is the only guarantor of mobility for the population of hard-to-reach settlements.


2021 ◽  
Vol 22 (3) ◽  
pp. 42-46
Author(s):  
A. N. Zhekalov ◽  
◽  
I. U. Mishin ◽  

Aim. To carry out a pathophysiological substantiation of the specificity of diseases of the organ of vision, developing under the influence of a complex of climatic and geographical factors of the Arctic region. Materials and methods. Using a retrospective epidemiological method of case-control study on the basis of branch No. 8 of FGKU 1469 VMKG of the Ministry of Defense of Russia, an analysis of the morbidity structure by ophthalmological profile for a three-year period (2018-2020) among military personnel aged 18 to 45 years military service in the Novaya Zemlya archipelago, Belushya Guba village. The method of analytical observation and data recording was used to assess the complex of unfavorable climatic and geographical factors of the Arctic region on the example of the Novaya Zemlya archipelago, Belushya Guba village. On the basis of an integral assessment of epidemiological and climatogeographic observations, a pathophysiological substantiation of the specificity of nosological groups of diseases of the organ of vision, developing under the influence of a complex of unfavorable factors of the Arctic region, is given. Results. The study involved 237 people. During the study period, 540 requests for ophthalmological help were registered. Of these, 64.26% are pathologies of inflammatory genesis, 32.6% are refractive disorders, 3.14% are diseases, the pathogenesis of which is associated with metabolic disorders in the body. The pathophysiological substantiation of the revealed morbidity structure according to the ophthalmological profile is due to the influence of a complex of unfavorable climatic and geographical factors of the Arctic region. Under the influence of wind and low temperatures, the structure of the tear film changes, the secretion of the meibomian glands becomes more viscous, as a result of which its concentration in the tear fluid decreases, and the eyes lose their protective barrier. The congealed secret clogs the ducts of the meibomian glands, which leads to their inflammation – meibomyitis. In turn, the insufficiency of the tear film provokes a decrease, and in more severe cases, a complete loss of natural tear production and the development of dry eye syndrome. The development of acute and chronic conjunctivitis is facilitated by a decrease in the reactivity of the body due to hypovitaminosis against the background of exposure to irritating climatic factors. With inflammation of the mucous membrane of the eyelids, the frequency of inflammatory diseases of the lacrimal ducts and the lacrimal gland increases, which causes obstruction of the lacrimal tubules and hyperfunction of the lacrimal glands. On a polar night, the perception of bright lighting is aggravated, a long stay near which provokes the development of a spasm of accommodation and subsequently its habitual excessive stress. Lack of natural light during the polar night is a predisposing factor for the development of myopia. In addition, during the polar night, there is a high probability of developing A-vitamin deficiency, which results in impaired night vision, damage to the conjunctiva, and in more severe cases, the cornea. In the spring or early summer, when there is snow, and solar activity is high, the ultraviolet rays reflected from the snow enter the eyes, causing a retinal burn, ultraviolet ophthalmia develops. Conclusion. The impact of a complex of climatic and geographic factors of the Arctic region on the body provokes a restructuring of regulatory physiological processes and the launch of pathogenetic mechanisms leading to the emergence and development of inflammatory diseases of the eye and its accessory apparatus, refractive disorders, as well as pathology, which is based on metabolic disorders.


2019 ◽  
Vol 1 ◽  
pp. 1-1
Author(s):  
Andrey Medvedev ◽  
Natalia Alekseenko ◽  
Maria Arsentyeva

<p><strong>Abstract.</strong> The Arctic region is currently at the next stage of increased interest not only from the Arctic States, but also from the entire world community. The main pollutants in the region are oil and gas products, heavy metals, chemical and radioactive contamination. The Arctic region of the Russian Federation has experienced a strong anthropogenic impact of radionuclides due to the use of nuclear energy. The main source of pollution is nuclear testing. About 132 tests were conducted on Novaya Zemlya, including 87 atmospheric, 3 underwater and 42 underground tests. Another source of radioactive contamination is the operation of the naval and civil nuclear fleet, as well as nuclear power plants (on the Kola Peninsula and in Bilibino). Until 1963, most of the tests were carried out in the atmosphere and under water, but after the signing of the Moscow Treaty on August 5, 1963, which prohibits the testing of nuclear weapons in three environments (under water, in the atmosphere and outer space), all tests were carried out underground, in tunnels and wells.</p><p>The object of research and mapping is the territory of the Novaya Zemlya archipelago and the nuclear test site located on it. On the territory of the nuclear test site constantly there was an assessment of the radioecological situation. The scientific community is interested in the processes taking place on the New Earth. The territory of the archipelago is constantly involved in various Arctic programs aimed at monitoring the level of environmental pollution and reducing the number of sources of pollution.</p><p>The aim of this work is to create multi-time animations of nuclear tests and the results of radionuclide pollution. These animated cartographic images differ not only in their time scales, but also a large set of qualitative and quantitative characteristics that characterize the results of anthropogenic influence.</p><p>As sources for creation of cartographic animations were: field data, remote sensing data (RS), Open sources, marine navigation maps, DEM’s (AsterDem, ArcticDem, GEBCO), meteorological data, thematic maps (including atlases), topographic maps, literary sources. The main part of the information about Novaya Zemlya archipelago was taken from the works of the Arctic marine complex expedition, which are devoted to the nature, history, archeology and culture of the archipelago. To obtain complete information about the explosions and their energy release ranges, additional open sources were used, from which it is possible to learn about the type of explosion, its power and location (geographical coordinates).</p><p>Dynamic geo-imagery was developed and established by the following method: study of object mapping and the collection of primary spatial data – creation script dynamic geo-imagery – the creation of a geodatabase of research – the creation of the thematic maps and layout of geo-imagery in the graphic editor – create animations with different time scales.</p><p>During the creation of cartographic animations based on the collected data, a multi-time multi-scale cartographic animation was developed, which allowed using the original graphical solution to visualize three interconnected time scales, which allowed to visualize the processes of infiltration and propagation of radioactive inert gases.</p>


2020 ◽  
pp. 92-97
Author(s):  
Aleksey Mikhailovich Khorev

The prospects and problems of using the Northern sea route for transportation of raw materials are examined. The author makes an attempt to study the current state of the Northern sea route as the most important transport corridor of the Arctic region, and analyzes the existing problems that reduce the economic efficiency of cargo transit along the NSR. The ways to improve the efficiency of transportation of raw materials along the Northern sea route are reviewed. The author assesses the importance of the Arctic region for the Russian Federation as a whole, as well as he points out the need for its development in the near future.


Author(s):  
Pavel A. Anisimov ◽  

The article examines the main challenges to the national security of the Russian Federation in the Arctic region. In particular, the author analyzes the reasons for the behavioral patterns of Russia and the NATO countries in relation to the Arctic through the prism of a realistic paradigm in the theory of international relations. It is the comprehensive approach to the consideration of the Arctic situation that determines the novelty and relevance of the study. In connection with the discovery and development of large mineral deposits, the role of the Arctic region in modern world political processes has increased. Also, since the late 20th – early 21st century, the Arctic has been in the focus of increased attention of international actors due to its geopolitical importance. All this makes it a priority for Russia. The intensification of the economic activity of the Russian Federation in the Arctic, as well as the implementation of such projects as the Northern Sea Route, has become the cause of the growing tensions in the region. The United States and other NATO countries, whose geopolitical interests are affected, are not only strengthening their anti-Russian rhetoric, but also increasing their military presence. In turn, this is perceived by the Russian side as a strategic threat and leads to mirror measures, including the deployment of a military infrastructure and an increase in the number of military exercises. However, despite growing tensions in the Arctic, Russia has consistently demonstrated its readiness for open dialogue and cooperation with its Western partners.


2021 ◽  
Vol 5 (12) ◽  
pp. 70-81
Author(s):  
Dmitrii L. Kondratovich ◽  

The article discusses aspects that determine the economic interests of the Arctic countries and affect the provision of economic growth and economic security of the Russian Federation. The author examines the current trends of economic activity in the Arctic, analyzes state strategies and other documents that determine the policy of states in the Arctic region. The purpose of this work was to study international economic aspects affecting the economic security of the Arctic territories of the Russian Federation. To achieve this goal, the following tasks were formulated: to study the Arctic strategies of the Arctic states; to structure the most important economic aspects affecting the economic security of the Russian Federation; to determine the basis for the development of cooperation and interaction between the Arctic states. The article concludes that despite the emerging problems and distrust between the Arctic states, there is an interest in building relationships based on respect for mutual interests and equal dialogue.


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