Regions Of Siberia Research Articles

Cereals Export Factors and Impact on Wheat Price in Russian Regions

The study describes the problems of wheat exports from Russian regions. The Russian Federation is one of the largest exporters of grain. Taking into account the development of biotechnology in the world, this type of resource claims to be a «new oil.» In the light of this, the Government of the Russian Federation set the task of doubling the export of agricultural products and raw materials until 2024. At the same time, the most promising areas of export are determined – India and China. Speaking of the latter, wheat exports to China began in 2014 and by the end of 2020 accounts for less than 1 % of the total Russian wheat exports. It is assumed that export growth in the Asian direction should be due to the regions of Siberia (Krasnoyarsk Territory, Novosibirsk Region, Omsk Region and Altai Territory), which have never been the main exporters of wheat. In this regard, it becomes necessary to update the scientific provisions of the logistics doctrine based on the results of empirical studies of wheat export factors from Russian regions. The debate on this issue rests on different approaches to determining the significance of export factors. The article provides an overview of key modern approaches, including theories of export and production potential. Based on the integrated approach, as well as machine training methods, the study proposes an analysis of the array of monthly data by 72 regions from 2007 to 2021 years, which includes a set of parameters of export and production potential. As a result, a linear classifier model is proposed, which allows guessing the export status of the region with an accuracy of 96 % based on a set of factors. It is determined that market factors increase the probability of export, while factors of production potential (with the exception of flour production) reduce this probability. This conclusion supports the idea of an integral approach, according to which with the development of primary and deep grain processing in the regions, exports are expected to decrease, while the development of the «free» grain market and an increase in wheat reserves on elevators leads to an increase in Russian grain exports. Thus, taking into account these circumstances, proposals have been formed to increase wheat exports from Siberian regions, which make it possible to offset the negative impact of exports not on the price situation within the regions and to comply with the interests of domestic processors and grain traders

Металлические изделия из памятников саргатской культуры Притоболья

The article is devoted to the presentation of the results of an analytical study of metal products from the Sargatka culture sites of the Tobol river region by X-ray fluorescence analysis to clarify the directions of contacts of the local population. As a result of the analysis, we have received evidence of the wide distribution of products made of pure copper (Сu), tin bronze (Cu+Sn) and brass (Cu+Zn) among the population of the Sargatka culture, and we also noted the use of rare alloys not previously identified on the materials of the Sargatka culture: leaded brass (Cu+Zn+Pb) and leadtin bronze (Cu+Pb+Sn). Such a variety of alloys indicates the presence of broad trade and exchange relations among the population of the Sargatka culture at different stages of its existence. The new data do not contradict the idea widespread in the literature about the receipt of ingots and products made of pure copper from Itkul metallurgists, as well as things made of bronze with a high tin content from Central Asia, the Volga region, the Cisurals, the eastern regions of Siberia, Altai and Transbaikal. The new material allowed us to draw a conclusion about the origin of lead-tin bronze products from the Xiongnu of Transbaikal, and jewelry made of double and three-component leaded brass from the population of the Kushan period of Northern Bactria.

Strong Time-Consistency of a Core: An Application to the Pollution Control Problem in Eastern Siberia

In this paper, we study the (strong) time-consistency property of the core for a linear-quadratic differential game of pollution control with nonzero absorption coefficient and real values of the model parameters. The values of parameters are evaluated based on the data for the largest aluminum enterprises of Eastern Siberia region of the Russian Federation for the year 2016. The obtained results are accompanied with illustrations.

High Voltage of the City: The Development of Siberian Historical Urban Studies in the Works of an Irkutsk Historian (to the 70th Anniversary of the Birth of Professor Vadim Shakherov)

The article provides the analysis of the main stages in the research career of the famous historian, urbanist and expert in the history of Siberian entrepreneurship, Doctor of Historical Sciences, Professor V. Shakherov. The evolution of the scholar’s scientific interests is highlighted in the text. The author outlines the main areas of the scientist’s research: studying the role of the city in building economic and socio-cultural environment of Siberia in the period from the 18th to the early 20th century, history of merchant class and entrepreneurship in pre-revolutionary Siberia, history of banking and credit system of the region, historic and cultural monuments of Siberia. The article presents the analysis of Shakherov’s major works, which reflect his contribution to the development of Siberian studies. Special attention is paid to his scientific, pedagogical and social activity aimed at preserving historical heritage of Irkutsk. The author of the article emphasizes that the research career of V. Shakherov and History Faculty of Irkutsk State University are tightly connected.

Ecologico-economic Substantiation of Environmental Remediation of Rock Disposal Dump at the Coal-mining Regions of Siberia and the Far East

Based on the remote sensing data, the aggregated information has been provided on rock disposal dumps of the surface and abandoned coal deposits in the mining regions of Siberia and the Far East. High-resolution satellite images have helped to square the acreage of slope grade horizontal alignments of rock disposal dumps, as well as the yielding capacity of plant ecosystems on the dump slopes. The rock dumps architecture has been proposed to ensure the ecological balance generation at the appropriate pace. The economic indicators of the remedial ecology package work at the rock dumps have been provided.

ОЦЕНКА ПОТЕНЦИАЛА ОСВОЕНИЯ МИНЕРАЛЬНО-СЫРЬЕВЫХ РЕСУРСОВ РЕГИОНА С УЧЕТОМ МЕЖОТРАСЛЕВОГО БАЛАНСА (НА ПРИМЕРЕ ТУВЫ)

It is shown that the territory of Tuva is distinguished by the richness and diversity of mineral resources. A brief description of the main deposits of the republic (coal, non-ferrous metals, ore gold), which will be developed in the next 5-10 years, is given. An economic assessment of the development potential of Tuva's mineral resources was carried out using the methods of the revenue approach and intersectoral modeling. The assessment of the most significant mineral deposits of Tuva shows their high economic efficiency of implementation. During the implementation of projects for the development of deposits in the region (coal of the Ulug-Khem basin, Kyzyl-Tashty polymetallic deposit, Ak-SUG copper-porphyry deposit, Kar-Beldyr ore gold deposit) The GRP of the republic may increase sevenfold. It is also projected to increase tax revenues and create more than seven thousand new jobs. It is shown that the widespread implementation of investment projects in the field of subsurface use is caused by infrastructure restrictions (energy, transport), first of all - the lack of railway communication both with nearby regions of Siberia and with cross-border territories. The removal of infrastructure restrictions can not only create a developed mining complex in the region, but also turn it into one of the promising regions of Siberia, given its cross-border potential for trade and economic development.

Fungal Metagenome of Chernevaya Taiga Soils: Taxonomic Composition, Differential Abundance and Factors Related to Plant Gigantism.

The Chernevaya taiga of Western Siberia is a unique and complex ecosystem, distinguished by the unusually large sizes of herbaceous plants, the reasons for which are poorly understood. Here, we explored the fungal diversity of the Chernevaya taiga soils in the Tomsk regions of Western Siberia in comparison with other soil types. The soil biomes of Chernevaya taiga and the control regions were investigated using Illumina ITS rRNA sequencing, and taxonomic analysis revealed a predominance of fungal phyla in the different soils. These results demonstrate that the fungi of the Chernevaya taiga regions have a higher species diversity (Faith’s PD) vs. the control soils, and the diversity is due more to the sampling sites rather than to the seasons (Bray-Curtis distance). We studied most of the differentially abundant taxa among the soil types, and we annotated the taxa with their ecological guilds and trophic types. Some of the abundant fungal taxa in the summer- and fall-Chernevaya taiga samples belong to the phylum Glomeromycota—arbuscular mycorrhizal symbiotrophs, which are known to establish symbiotic relationships and enhance plant growth. Additionally, several OTUs were assigned to novel genera in the Glomeraceae and Claroideoglomeraceae families. Our findings add a potential explanation of the high productivity and plant gigantism in Chernevaya taiga and expand our knowledge of fungal biodiversity.

Increasing fire and logging disturbances in Siberian boreal forests: a case study of the Angara region

Forest disturbances are a critical environmental issue globally and within the boreal biome, yet detailed attribution and trends in disturbances are lacking for many Siberian regions. The Angara region located in the southern taiga of Central Siberia has experienced significant disturbances during the past several decades and is a hotspot of change in Eurasia. Here we estimated fire and logging disturbances using MODIS and Landsat data for the period 2002–2020 across the Angara region and analyzed the resulting trends. Average annual burned and logged area was about 220 and 31 thousand ha or 2 and 0.3% of the study area, respectively. In total, about 4.1 million ha (38% of the region) and 0.6 million ha (6% of the region) were disturbed by fires and logging, respectively. Spatial analysis showed that almost 50% of fires were ignited within 2 km of anthropogenic features such as settlements, roads and logged areas. Almost 5% of the Angara region was burned two or more times during the 19 years of observations. Improved and strictly-enforced conservation and management policies are required to halt continued forest degradation in the Angara region and similarly-affected boreal forests in Siberia.

TRANSIENT ELECTROMAGNETIC SOUNDING IN 2D, 3D, AND 4D MODES: SEQUENCE OF GEOLOGICAL EXPLORATION ACTIVITIES

From 1980s, electromagnetic prospecting is an integral component of geophysical techniques for oil and gas exploration in many regions of the Russian Federation. Electromagnetic methods are used at all stages of geological exploration, including reconnaissance, discovery, prospecting and appraisal, and economic mining. In oil and gas exploration, the most commonly used technique is the near-field transient electromagnetic sounding (TEM). On the other hand, for each of these stages, specific tasks of electromagnetic prospecting have not been clearly defined yet. Furthermore, there are no standard requirements to the volume of a priori geological and geophysical information, which is sufficient for solving a geological problem. If such information is lacking or insufficient, a geological problem may be incorrectly stated and/or improperly correlated with the current stage of works. Our study aims to define which geological problems should be addressed by electromagnetic survey at the different stages of geological exploration, and to specify the requirements to the availability of a priori geological and geophysical information. We have analyzed the electromagnetic data from the regions of East and West Siberia, which have different geological settings. The main geological problems that can be solved by the seismic and electromagnetic techniques are determined. We propose a set of geophysical survey operations, which is optimal for oil and gas exploration. An effective sequence of electromagnetic prospecting stages is determined, and preliminary and accompanying surveys are specified. The requirements to the availability of a priori information are proposed, and its volume is defined. Geological problems are defined with respect to the corresponding stages of geological exploration. Special attention is given to approaches to the mineral resource estimation and calculation of hydrocarbon reserves, taking into account electromagnetic survey results. It is proposed to use the electromagnetic data at the stage of prospecting and appraisal, which aims to assess the resources of categories D l and D 0 , as well as at the exploration stage for estimating the reserves of category C 2 in new and explored fields. Approaches to the economic assessment of using electromagnetic surveys as part of the geological exploration are discussed. Our study shows that a correct sequence of electromagnetic prospecting operations at each stage can ensure obtaining an original geological dataset of the given stage and thus providing a proper basis for the next stage of oil-gas field investigation.

Social marginalization in regions of Siberia and Far East of Russia: Factors, Features, Trends

The social marginalization is one of the most acute problems of modern Russia as it results in its development slowdown and a loss in its social and human capital. The marginalization is particularly wide-spread in the regions of the Asian part of the country. The marginalization is characterized by a complex of problems including the social diseases, the spread of crimes in various forms, the economic and social benefits deprivation, etc. Due to the impoverishment of the human capital, the progress is slow in the Siberian and Far Eastern regions, and this threatens the sustainable economic development here. In this paper, the authors propose a system of indicators and a methodology enabling a comprehensive assessment of the social marginalization. An attempt is made in the paper to link some statistical indicators of the social deprivation with the most striking characteristics of the marginalization in the society. Also, in the paper, the heterogeneity and the regional specificity of this phenomenon are shown. The main factors of geographic, economic, cultural and institutional origin making their impact on the level of marginalization have also been identified.

Breeding of spring turnip rape, Brassica rapa L. var. subsp.campestris (L.) A.R Clapham at All-Russian Research Institute of Oil Crops

Turnip rape, Brassica rapa L. var. sabsp. Campestris (L.) A.R.Clapham belongs to the large cabbage family (Brassicacea). Spring turnip rape among other oilseeds of the Brassicacea family occupies an important place and can be highly productive in the Northern regions of the European part, in the arid zones of the Lower Volga region, in the northern forest-steppe and subtaiga regions of Western and Eastern Siberia, where the longer growing season sometimes hinders rapeseed to achieve its full potential. Spring turnip rape ripens 13-15 days earlier than rapeseed; it is less heat- and drought-sensitive. However, interest in industrial cultivation of spring turnip rape appeared in the 70s of the last century after the creation of non-erucic and low-glucosinolate varieties, with the oil equivalent to olive oil in its fatty acid composition. Spring turnip rape has been bred at V.S. Pustovoyt All-Russian Research Institute of Oils Crops (VNIIMK) since 1982. The yellow-seeded varieties, Vostochnaya, Yantarnaya, and Zolotistaya, were created. The objective of this research was to find a new promising breeding material for creating varieties of 000-type spring turnip rape from heterogeneous populations of the available VNIIMK varieties. To obtain a new source material, we used the pedigree method, followed by an assessment of the progeny of elite plants isolated from Yantarnaya and Zolotistaya. The result of our six-year efforts was four new promising samples No. 815, 844, 816, and 820, which exceed the standard variety, Zolotistaya, in seed yield by 10-14%. The oil content of seeds of the isolated samples varied from 47.8 to 48.6%, and exceeded the standard variety by 0.3–0.7% in three of them. Promising cultivars either had the same or lower weight of 1000 seeds (2.4-3.0 g), in comparison with Zolotistaya. All selected samples of turnip rape were characterized by a low glucosinolate content in seeds – 13.5–14.5 μmol g-1, and the fatty acid composition corresponded to the requirements for high-quality salad oils with erucic acid levels of 0.04–0.20% and a high content of oleic acid – 65.8–67.4%. After additional assessment, the best variety will be submitted for the State test.

Specificity and efficiency of agriculture in regions of Southern Siberia bordering Mongolia

Subject. The article addresses the influence of the status and place of border territories on the state and efficiency of agriculture in regions of South Siberia bordering Mongolia. Objectives. The purpose of the study is to identify the specifics of agriculture in the territories bordering Mongolia in southern Siberia and assess its effectiveness. Methods. The study employs comparison of various characteristics of constituent entities of the Russian Federation, which are in specific conditions, among themselves and with the rest of the regions of corresponding federal districts; typification of border territories, taking into account the status of subjects, their location and trans-boundary nature; fiscal equalization of constituent entities of the Russian Federation. Results. The paper states that the specifics of border regions of southern Siberia is a high share of agriculture in the output, especially in the Republic of Altai and Tyva. However, these two republics differ significantly in the structure of agricultural production. The economic efficiency of the agrarian sphere is substantially diversified and its level impedes sustainable development. Conclusions. To increase the efficiency of agricultural production in border regions of southern Siberia it is important to increase governmental financial support at the federal level; to improve estimated fiscal capacity of border subjects of the Russian Federation so that they could support agricultural producers from their own budgets.

Freshwater gastropods of the western part of the Kola Peninsula and northern Karelia (northern Europe)

The species composition and distribution of freshwater gastropods in the western part of the Kola Peninsula and northern Karelia has been studied. The explored region lies in the far north of Europe and covers several landscape zones: from the northern taiga to the tundra. In sum, seventeen species were found, for each of them the distribution maps and photographs of intraspecific forms of conchological variability are presented. The taxonomic remarks are also given when appropriate. Gyraulus acronicus (Planorbidae) and Ampullacena balthica (Lymnaeidae) are the most common species in the studied region. Two species ( Ampullacena balthica and Galba truncatula ) have been recorded in the Barents Sea islands off the Kola Peninsula. A single non-indigenous species, Physella acuta (Physidae) has been registered in the studied territory. Based on the results of a comparison of the faunas of gastropods from various areas within the whole territory studied and other regions of northern Europe and Western Siberia, it has been shown that the most dramatic reduction in the species composition occurs during the transition from taiga to tundra landscapes.

Natural Occurrence of Alternaria Fungi and Associated Mycotoxins in Small-Grain Cereals from The Urals and West Siberia Regions of Russia.

Alternaria fungi dominate the grain microbiota in many regions of the world; therefore, the detection of species that are able to produce mycotoxins has received much attention. A total of 178 grain samples of wheat, barley and oat obtained from the Urals and West Siberia regions of Russia in 2017–2019 were included in the study. Grain contamination with Alternaria fungi belonging to sections Alternaria and Infectoriae was analysed using qPCR with specific primers. The occurrence of four mycotoxins produced by Alternaria, AOH, AME, TEN, and TeA, was defined by HPLC-MS/MS. Alternaria DNA was found in all analysed grain samples. The prevalence of DNA of Alternaria sect. Alternaria fungi (range 53 × 10−4–21,731 × 10−4 pg/ng) over the DNA of Alternaria sect. Infectoriae (range 11 × 10−4‒4237 × 10−4 pg/ng) in the grain samples was revealed. Sixty-two percent of grain samples were contaminated by at least two Alternaria mycotoxins. The combination of TEN and TeA was found most often. Eight percent of grain samples were contaminated by all four mycotoxins, and only 3% of samples were free from the analysed secondary toxic metabolites. The amounts varied in a range of 2–53 µg/kg for AOH, 3–56 µg/kg for AME, 3–131 µg/kg for TEN and 9–15,000 µg/kg for TeA. To our knowledge, a new global maximum level of natural contamination of wheat grain with TeA was detected. A positive correlation between the amount of DNA from Alternaria sect. Alternaria and TeA was observed. The significant effects of cereal species and geographic origin of samples on the amounts of DNA and mycotoxins of Alternaria spp. in grain were revealed. Barley was the most heavily contaminated with fungi belonging to both sections. The content of AOH in oat grain was, on average, higher than that found in wheat and barley. The content of TEN in the grain of barley was lower than that in wheat and similar to that in oat. The content of TeA did not depend on the cereal crop. The effect of weather conditions (summer temperature and rainfall) on the final fungal and mycotoxin contamination of grain was discussed. The frequent co-occurrence of different Alternaria fungi and their mycotoxins in grain indicates the need for further studies investigating this issue.

Woody and semi-woody species in the collection “Rare and endangered plant species of Siberia” (Novosibirsk)

. The article presents the results of the conservation of woody and semi-woody species under introductionconditions in the collection “Rare and endangered plant species of Siberia” of the Central Siberian Botanical Garden (Novosibirsk). This collection was founded in 1965 years. The analysis of the fund of this collection is carried out. For a longtime (more than 10 years), 22 woody and semi-woody species from 14 families from 8 regions of Siberia are grown in thecollection. Four species are endemic: Sedum populifolium Pallas, Cotoneaster lucidus Schlecht., Sibiraea altaiensis (Laxm.)Schneider and Tilia sibirica Fisher ex Bayer. Most of the species are represented in the collection by small populations. Thisis due to the problems of reproduction of species in the conditions of culture, for many of which methods of vegetative andseed reproduction have not been developed. The traditional method of reproduction used for herbaceous plants – laboratory-greenhouse-soil. This method is often ineffective for woody species due to the long pregenerative period and low biological longevity of seeds. In the introduction, microecological conditions are selected for each species, since they belongto different ecological groups. Among the introduced species there are 13 mesophytes, 8 xerophytes, 1 xeromesophyte. Thearticle presents literary and original information about the methods of reproduction of cultivated species.

Siberian Expeditions of Employees of the IDR FCTAS RAS

In the framework of the implementation of phase a result, the RFBR grant "modeling scenarios of spatial development of Siberia and the Far East of Russia 2030: features of the settlement system" (2019-2021) in may-June 2021 employees go FCTAS RAS wounds were conducted three surveys поездкиvв regions of Western Siberia (in 2020 two expeditions in 4 of the subject in the far East, and in 2019, four expeditions in 10 regions of Siberia and the Far East).

LITHOLOGICAL AND FACIAL FEATURES, COMPOSITION, AND SEDIMENTATION CONDITIONS OF TERRIGENOUS-CARBONATE ROCKS OF THE MOTY GROUP (SHAMAN CLIFF, IRKUTSK REGION)

We have studied terrigenous-carbonate rocks in the area near the Sayan mountains in the Irkutsk Region (Russia), specifically at the Shaman Cliff, being the stratotype area of rocks that belong to the Moty group. The cliff’s lower part is composed of sandstones, which fragments gradually decrease in size upward the cross-section. The middle and upper parts are composed of sandy dolomites and dolomites, respectively. In terms of material characteristics, the terrigenous rocks correspond to arkoses. According to the genetic typification, the arkoses are composed of destructed primary igneous rocks. The terrigenous-carbonate rocks contain a carbonate component that gradually increases in the upper part of the cross-section. In the Shaman Cliff cross-section, we distinguish 32 lithological units and eight lithologicalgenetic types of deposits. Paleogeodynamic conditions are reconstructed for the formation of the sedimentation basin. Our study of the Shaman formation reveals specific features of the lithological facies, which suggest that these rocks accumulated in a coastal environment affected by tides. In the study area, clastic materials were mainly removed from an orogen that formed due to the Vendian accretion-collision events in the southern folded frame of the Siberian platform. Dolomites composing the upper part of the cliff are attributed to the Irkutsk formation of the Moty group. Their lithological features give evidence of shallow-marine conditions of their formation, without any supply of clastic material, which contributed to mass dispersal of the Cambrian biota described in [Marusin et al., 2021]. It is our first initiative to draw a boundary between the Shaman and Irkutsk formations of the Moty Group along the base of the carbonate eluvial breccia unit that marks the stratigraphic break. In the cross-section, this boundary represents the border between the Upper Vendian and Lower Cambrian.Our conclusions are generally consistent with the ideas of most researchers about the Late Vendian evolution of the southern margin of the Siberian platform. The results of our study can be used in further investigation of this area and provide a basis for correlating the studied strata with the same-age reference cross-sections of other regions in Siberia.

Introduction of the species of the genera Cotoneaster Medik. and × Sorbocotoneaster pozdnjakovii Pojark. from the Siberian flora in the Botanical Garden acad. A. V. Fomin of Taras Shevchenko National University of Kiev (message 1, Cotoneaster)

The range of most species of the genus Cotoneaster Medik. located in the mountainous regions of Asia.According to the latest report by Janette Fryer and Bertil Hylmo, the genus Cotoneaster is represented by 2 subgenuses,11 sections and 37 series. Cotoneasters of Siberian flora: C. commixtus, C. laxiflorus, C. lucidus, C. megalocarpus, C. multiflorus, C. popovii, C. tjulinae, C. uniflorus, C. yakuticus, located in 2 subgenuses, 4 sections, 4 series. Collection of speciesof the genus Cotoneaster in the Botanical Garden acad. A.V. Fomin was created according the method of genus complexesby F. N. Rusanov, starting from 1972. The source material was attracted both by the extraction of seeds from the catalogsof foreign and Russian botanical gardens, and by the collection of seeds and living material in places of natural growth.Two expeditions were carried out to the regions of Siberia. The first one – Yakutsk in 1982 (10.08 – 29.08) along the route Kiev – Novosibirsk – Irkutsk – Tomsk – Krasnoyarsk – Aldan – Irkutsk – Kiev. The second – Central Siberian in 1983(24.07 – 17.08) along the route: Kiev – Irkutsk – Davsha – Nizhne –Angarsk – Severo –Baikalsk – Ulan –Ude – Kyakhta –Irkutsk – Chita – Moscow – Kiev. Morphological descriptions of annual shoots leaves, flowers, fruits, seeds of three typesof Cotoneasters: C. laxiflorus, C. lucidus, C. neo-popovii, micrographs of endocarp of bones, columns are given. The material is illustrated with photographs of plants introduced in the north-west of Ukraine (Kiev).

Association of blood pressure and coronary heart disease in women of an open population of a moderately urbanized city of Western Siberia

Objective. The aim of this study was to assess the association between the level of blood pressure (BP) and the prevalence of coronary heart disease (CHD) in women of working age in an open population of a moderately urbanized Siberian city (on the model of Tyumen).Design and methods. We included 1000 women of an open urban population aged 25–64 years, 250 people in each of four decades of life (among persons 25–34, 35–44, 45–54, 55–-64 years old), selected by the method of a random representative sample from the electoral lists of the administrative district of Tyumen, the response was 70,3% (703 participants). In all subjects we measured BP; assessed the presence of coronary artery disease — according to standardized epidemiological methods: based on the extended criteria, “definite” CHD (strict criteria) and “possible” CHD (non-strict criteria) were distinguished. Statistical analysis was performed using STATISTICA 12.0 software, the differences were considered significant at p-level ≤ 0,005.Results. Almost every third woman (25–64 years old) had increased BP (34,7 %), the frequency of increased BP grows with age, reaching 63,3 % in the older group. Low awareness of high BP and low adherence to treatment were found. There was a correlation between the prevalence of CHD and BP level and age. In the presence of increased systolic BP, the chance of developing CHD in women aged 25–64 years in the open population increases by 1,9–2,7 times (p < 0,05), in the presence of increased diastolic BP, the chance of developing CHD according to extended criteria increases by 2,1 times (odds ratio = 2,08, 95 % confidence interval (1,15; 3,74)).Conclusions. Our results can be used for improving the strategy of primary cardiovascular prevention in preventive programs of the Western Siberia region.

ИЗМЕНЕНИЯ СОЛНЕЧНОЙ РАДИАЦИИ НА ТЕРРИТОРИИ СЕВЕРНОЙ ЕВРАЗИИ В ТЕПЛОЕ ВРЕМЯ ГОДА ЗА МНОГОЛЕТНИЙ ПЕРИОД ПО ДАННЫМ ИЗМЕРЕНИЙ И МОДЕЛИ РЕКОНСТРУКЦИИ

A reconstruction model of surface solar radiation (SR) is developed. The results of reconstructing the interannual SR variability for the period of 1968-2016 are tested against the observations at MSU (Lomonosov Moscow State University) Meteorological Observatory for the warm season (May-September), the comparison showed a good agreement (the coefficient of determination R2 = 0.8). The analysis of temporal variations in SR over Northern Eurasia (40-80 N; 10 W-180 E) due to various factors revealed that in most cases there has been a trend toward an SR increase since 1979. In addition, it is demonstrated that the long-term SR variability over Northern Eurasia was effectively explained by variations in the cloud transmission of Sr, except for the polluted regions of Siberia and China and several stations in Northern Europe, where the aerosol factor dominates in some cases.