Part Of Russia Research Articles

Assessment of Four Major Fish Species Stocks in the Lithuanian and Russian Parts of Curonian Lagoon (SE Baltic Sea) Using CMSY Method

Fisheries in the Curonian Lagoon (1584 km2 coastal lagoon in South-East Baltic) can be classified as artisanal, small-scale, multi-species, and multi-gear. Such types of fisheries are characterised as data-poor and require appropriate investigation methods. We used CMSY (version CMSY_2019_9f. R) to assess maximum sustainable yield (MSY) and related indicators for freshwater bream, roach, pike-perch, and European perch. A decline in pike-perch and roach was identified, while the stocks of freshwater bream and European perch were sustained. As the CMSY model does not consider the impact of environmental factors, the decline in roach stock may be attributed to the increase in salinity rather than to overfishing. In the case of freshwater bream and pike-perch, the method cannot consider the increase of the percentage of small-sized fishes in catches due to the allowance of low-selectivity gears in the fishery. Additionally, in the case of the pike-perch, the model does not take into account the interannual fluctuations in the stock-recruitment system. The assessment of the European perch stock can be considered to be good. However, the accuracy of CMSY is limited, and it should be used for fisheries management only in combination with other methods.

Autographs of the Stolniks Melnitskii in the Ancient Storage of the Pushkin House

The article presents autographs of Nazarii Petrovich, Iakov Nazar’evich and Ivan Nazar’evich Melnitskii kept in the Institute of Russian Literature (Pushkin House) of the Russian Academmy of Science, in the Ancient Storage (Drevlekhranilishche) named after V. I. Malyshev: their letters to their close relative Gavrila Alexandrovich Melnitskii and the Latin-Russian dictionary, the Latin part of which was written by Iakov Nazar’evich Melnitskii. The letters of Iakov and Ivan Melnitskii relate to the different circumstances of the Crimean campaigns of the late 17th century, in the first of which Nazarii Petrovich Melnitski was involved (he was responsible for escorting to Azov suppliers of provisions caught in embezzlement), while his sons Nikita and Semen participated in the second (Nikita served under the command of Patrick Gordon). A letter from Nazarii Melnitski tells about the circumstances of his dispatch to serve in the conquered Tavan’ and Kazykermen’. Letters date back to 1695, 1696, and 1698/99. They were sent from Moscow, presumably, to the estate of G. A. Melnitskii. The Latin-Russian dictionary, in the creation of which Iakov Nazar’evich Melnitskii played the main role, is not only of lexicographic interest. On the one hand, it allows us to evaluate the education of the Petrine generation of service people; on the other hand, — to make some observations regarding the organization of scribal work in creating such books. Iakov Melnitskii not only wrote the Latin part of the dictionary, but also organized people who filled out its Russian part, and paid for their work. Despite the fact that the Russian part of the dictionary was not completed, the book was bound. Iakov Melnitskii gave it a complete look, writing the chapters and placingthe output note on the binding sheets. The article suggests a paleographic analysis of the manuscripts under consideration and demonstrates both the general features characteristic of the manuscript culture of the beginning of the Petrine era and the individual features of each scribe. The article is supplemented by the publication of samples of the handwriting of stolniks Melnitskii and the texts of three their letters.

Новые находки водорослей, грибов, лишайников и мохообразных. 9

First records of cyanoprokaryotic species for the Russian part of the Gulf of Finland of the Baltic Sea, aphyllophoroid fungi for the Yaroslavl Region, myxomycetes for the Republic of Belarus, lichens and allied fungi for the Tver Region, lichens for the Nizhny Novgorod Region, Kabardino-Balkarian and Karachayevo-Circassian republics, and Perm Territory, mosses for the Kursk, Lipetsk and Saratov regions are presented. The data on their localities, habitats, distribution are provided. The specimens are kept in the herbaria of the Komarov Botanical Institute RAS (LE), Department of Botany of St. Petersburg State University (LECB), Kuprevich Institute of Experimental Botany NAS of Belarus (MSK-F), Francisk Skorina Gomel State University of Belarus (GSU), National Research Lobachevsky State University of Nizhny Novgorod (NNSU), Galichya Gora Reserve of the Voronezh State University (VU).

Precipitation and Anthropogenic Activities Jointly Green the China–Mongolia–Russia Economic Corridor

Climate change and anthropogenic activities are widely considered the main factors affecting vegetation growth. However, their relative contributions are under debate. Within the non-climatic impact, detailed human activities, particularly government policy adjustments, are less investigated. In this study, we develop a fractional vegetation coverage (FVC) extraction method based on MODIS-EVI satellite data to analyze the spatiotemporal variation of vegetation and its attributions in the China–Mongolia–Russia Economic Corridor (CMREC). The average FVC has improved, with a general increase of 0.02/10a from 2000 to 2020. We construct a driving factor identification system for FVC change, based on partial and multiple correlation coefficients, and we divide the driving forces of FVC changes into seven climate-driven types and one non-climate-driven type. The results reveal that FVC changes caused by climatic factors account for 28.2% of CMREC. The most prominent greening (19.5%) is precipitation-driven, and is extensively distributed in Khentii Aimag, Mongolia; southeast Inner Mongolia; west Jilin Province; and southwest Heilongjiang Province, China. Moreover, we quantify the relative contribution of climatic and non-climatic factors to significant FVC change using the first-difference multivariate regression method. The results indicate that the effects of non-climatic factors on vegetation change outweigh those of climatic factors in most areas. According to the land cover change and regional policy adjustment, anthropogenic activities such as afforestation, reclamation, and planting structure adjustment explain most vegetation improvement in the Northeast Plain; eastern Inner Mongolia; and the Hetao Irrigation District, China. Meanwhile, both vegetation improvement and degradation disperse concurrently in the Mongolian and Russian parts of CMREC, where climate change and anthropogenic activities positively and negatively affect vegetation change, respectively. Despite the greening in most CMREC, it must be noted that human-induced greening is unsustainable to some degree. The overdevelopment of black soil area and sandy land, adverse effects of afforestation projects, and natural hazards related to weather and climate extremes altogether threaten the local ecological security in the long run. Therefore, governments should develop new desertification countermeasures in accordance with the laws of nature, and enhance international cooperation to guarantee the ecological safety of CMREC.

Макрофиты российской части Калининградского /Вислинского залива (бассейн Балтийского моря)

The authors study the modern composition of the macrophyte flora of the Kaliningrad Bay (The Russian part of the Vistula Lagoon), which includes 116 species: 96 species of vas­cular plants and 20 species of macroalgae. Only 39 species of macrophytes were found in 2021, i. e., 19 species of higher plants and 20 species of macroalgae. Depending on the abiotic factors in the four hydrological regions of the lagoon, the floristic diversity and distribution of macrophytes has its own characteristics. The maximum species diversity (29 species), as well as the biomass of macrophytes, are characteristic of the eastern region, characterized by mini­mal salinity values and a high level of nutrients.

Experience in using the methods of catastrophe theory in describing the dynamics of phytoplankton in the Vistula lagoon of the Baltic Sea

Ideas and methods of catastrophe theory are widely used to analyze “regime shifts” in ecosystems. In this work, the analysis of the seasonal dynamics of phytoplankton in the Russian part of the Vistula Lagoon of the Baltic Sea is carried out on the basis of using the simplest possible model of the catastrophe theory − cusp catastrophe. The total phytoplankton biomass is considered as a state variable. The use of one of the methods of multivariate analysis − principal components method − made it possible to carry out the entire analysis depending on a small number of parameters. A calculation of the control parameters values is carried out using the factor loadings of the main components for the data that characterize the hydro-physical and hydro-chemical regimes as well as the level of biogenic loading on the aquatic ecosystem of the lagoon. It was found that, depending on the specific situation, the same factor or different combinations of factors can play both a stabilizing role and be the cause of destabilization.

Finnmark Platform Composite Tectono-Sedimentary Element, Barents Sea

Abstract The Finnmark Platform Composite Tectono-Sedimentary Element (CTSE), located in the southern Barents Sea, is a northward-dipping monoclinal structural unit. It covers most of the southern Norwegian Barents Sea where it borders the Norwegian mainland. Except for the different age of basement, the CTSE extends eastwards into the Kola Monocline on the Russian part of the Barents Sea. The general water depth varies between 200 and 350 m, and the sea bottom is influenced by Plio-Pleistocene glaciations. A high frequency of scour marks and deposition of moraine materials exists on the platform areas. Successively older strata sub-crop below the Upper Regional Unconformity (URU), which was formed by several glacial periods. Basement rocks of Neoproterozoic age were heavily affected by the Caledonian Orogeny, and previously by the Timanide tectonic compression in the easternmost part of the Finnmark Platform CTSE. Depth to crystalline basement varies considerably and is estimated to be from 4–5 to 10 km. Following the Caledonian orogenesis, the Finnmark Platform was affected by Lower–Middle Carboniferous rifting, sediment input from the Uralian Orogen in the east, the Upper Jurassic–Lower Cretaceous rift phase and the Late Plio-Pleistocene isostatic uplift. A total of eight exploration wells drilled different targets on the platform. Two minor discoveries have been made proving the presence of both oil and gas, and potential sandstone reservoirs of good quality identified in the Visean, Induan, Anisian and Carnian intervals. In addition, thick sequences of Permo-Carboniferous carbonates and spiculitic chert are proven in the eastern Platform area. The deep reservoirs are believed to be charged from Paleozoic sources. A western extension of the Domanik source rocks well documented in the Timan–Pechora Basin may exist towards the eastern part of the Finnmark Platform. In the westernmost part, charge from juxtaposed downfaulted basins may be possible.

THE PROBLEM OF REFORMING THE ARMENIAN VILAYETS OF TURKEY IN THE POLITICS OF THE LEADING POWERS IN 1908-1914

The current problem of the South Caucasus and Russian-Turkish interaction requires constantly to look back to the historical past, where the roots of all Caucasian ethno-territorial conflicts lie. In this regard, the problem of reforming the Armenian vilayets of the Ottoman Empire is urgent for modern international relations. Neither the genocide, nor the current difficulties of the Armenian-Turkish relations can be adequately considered without studying the situation around Armenia at the beginning of the 20th century.Above all, the author examines the problem of reforming the Armenian regions of the Ottoman Empire, taking into account the interests of the leading powers and is placed in the context of the pre-war peace and bloc confrontation. The main research approach of the study is neorealism, which makes the basis of international relations not only states with their interests, but also alliances of states. In addition to the published musical correspondence of Russian diplomats, the work uses sources of personal origin: the memoirs of S. D. Sazonov - the Minister of Foreign Affairs of the Russian Empire, the memoirs of the American Ambassador G. Morgenthau, the diary of the Dutch inspector Louis Konstan Westenenk, archival documents with A. Mandelstam's report on reform projects were introduced into scientific circulation. The study released that the most persistent and consistent position on the reforms of the Armenian vilayets was taken by Russia, which sought to secure the Caucasus, adjacent to Turkey. Refugees were striving from the vilayets to the Russian part of Armenia, therefore, calming down the Armenian population in the Turkish part would contribute to stability in the Caucasian outskirts. However, there was no unanimity in the Entente on the Armenian issue, the outbreak of the First World War prevented the implementation of the project prepared on the eve of the war, as a result, everything turned into genocide for the Armenian people.

The Southern Part of Russian Far East and Korean Peninsula as a Transition Zone between the Boreal and Tropical Faunas of the Waterfleas (Cladocera, Crustacea)

The Southern Part of Russian Far East and Korean Peninsula as a Transition Zone between the Boreal and Tropical Faunas of the Waterfleas (Cladocera, Crustacea)

Knap & Keep

The tradition of lithic caches illustrates a special strategy of storing lithics which were extracted from chaîne opératoire for some time to be kept/hidden in a special place with/without subsequent return and use. For the Palaeolithic – Neolithic/Jōmon of the Far East (Russian part and the Japanese Archipelago) within the frame of 35 000–2400 cal BP, this tradition demonstrates an impressive multiplicity (more than 400 cases), high diversity, duration, dynamics, and local variability. Such an abundant source of data opens rich perspectives for detailed technological analysis, functional interpretations, and interregional correlations, with analogies in the Stone Age cultures of the Near East, Europe, and North America.

MORPHOLOGICAL-SYNTACTIC AND LEXICAL SIGNIFICANCE IN LEXICOGRAPHIC BILINGUALISM (Based on the materials of the edited Lezghin-Russian Dictionary)

This article touches on some morphological-syntactic and lexical issues related to the category of gender, number and case in nouns and issues of the syntactic connection of control and coordination, both in the Lezghin and in the Russian parts of the Lezghin-Russian dictionary we are editing. Based on factual material, the existing problems on the above issues are demonstrated and the importance of compliance with all language standards in practice is emphasized.

The 15 Year Long-Term Survival of Patients with Chronic Myeloid Leukaemia from 35 Regions of Russian Federation: A Follow up of a Multicenter Observation Study Eutos Osp Initiated By European Leukemia NET

The results of long-term follow-up of patients (pts) with chronic myeloid leukemia (CML) do not lose their importance. Data from routine clinical practice are of particular interest. The use of 1 st (imatinib, IM) and 2nd generation TKI (2G TKI) led to a significant increase in survival, so the probability of death associated with CML could be significantly lower than the probability of death due to common causes of death other than CML.To analyze the overall survival (OS) and causes of mortality in CML pts treated in routine clinical practice in Russian Federation for a long period (>15 years) of time.The long-term follow-up data of the Russian part of the European LeukemiaNet (ELN) OSP EUTOS multicenter observational study were evaluated. The analyzed cohort consisted of 678 Ph/BCR-ABL-positive CML pts from 35 regions of Russia diagnosed in 2002-2006 with IM therapy initiation ≤6 months (mo) after diagnosis. Median (Me) age was 47(range 18-81) years (y), 47% males. Chronic phase, accelerated phase and blast crisis at diagnosis was in 631 (93%), 41(6%) and 6(1%) pts, respectively. The annual number of newly diagnosed pts was as follows: 2002 - 15 pts, 2003 - 38 pts, 2004 - 46 pts, 2005 - 206 pts, 2006 - 302 pts. The last update for 209 pts was done in Jun. 2021; last contact for 100 pts - in 2020, for 39pts - in 2019, for the other - before 2018. The date of the last contact/death could not be established for 14 pts. Statistical analysis included 661 pts, the OS was evaluated by Kaplan-Mayer method using the SAS 9.4 package.In total, 331 (50%) pts of the analyzed cohort were alive with the Me follow-up of 180 (range 2-232) mo or 15 y (range 2 mo-19,3 y). All pts started therapy with IM with 25% switched to 2G TKI in subsequent therapy lines. In total, 218 (66%) pts achieved MR4, 183 (55%) pts got MMR; 46 (21%) of these pts with deep molecular response (DMR) were observed in hematology centers of Moscow.The 15-y OS in the total cohort was 63% (CI 59-70%)(fig.1). The OS by age groups was as follows: 18-40yy-75% (CI 73-82%), 40-60yy- 63% (CI 59-70%), 60-80yy- 37% (CI 30-45%). The most complete information was provided by Moscow centers (2 centers, 113 pts). The 15-y OS of pts receiving treatment in Moscow was significantly higher vs pts from other regions (32 centers, 548 pts): 75% vs 60%, p=0,0030 (fig.2).The mortality in the whole cohort of 661 pts was 35% (233 pts). Of these 233 pts, 112(48%) pts deaths were due to CML progression to AP or BP (including non-compliant cases); 3pts (1,5%) died after allogenic stem cell transplantation (infection complications); the cause of death was unknown in 50 (21,5%) pts. The highest death rate from CML progression was at 4-9 y of follow-up. Deaths caused by concomitant diseases were in 68 (29%) pts: coronary artery disease/myocardial infarction/heart failure in 42 (62%) of 68 pts, acute ischemic stroke in 10 (15%) pts, second malignancies (Cr- cancer) in 10 (15%) pts (lung tumor, metastatic esophageal Cr, stomach Cr, brain tumor, sigmoid colon Cr, rectal colon Cr, melanoma, renal Cr, breast tumor, other hematological malignancies), accidents - 1 pt, liver cirrhosis - 2 pts, in 2 cases - respiratory virus infections complicated with pneumonia, 1 pt died due to Covid-19.Conclusions. The long-term follow-up of the multicenter study EUTOS OSP in 35 regions of Russian Federation allows not only to characterize the 15-y OS in CML pts but also provides the long-term outlook of the routine clinical practice. Probably, better OS of CML patients receiving treatment in Moscow (2 centers) may be related to organizational issues of interaction with the federal center, better monitoring and timely switching to 2G TKI therapy. The organization and support of multicenter studies may improve the situation with the treatment of diseases of the blood system. [Display omitted] DisclosuresChelysheva: Novartis Pharma: Speakers Bureau; Pfizer: Speakers Bureau; Pharmstandart: Speakers Bureau; Bristol Myers Squibb: Speakers Bureau. Vinogradova: Pharmstandart: Speakers Bureau; Novartis Pharma: Speakers Bureau; Pfizer: Speakers Bureau; Bristol Myers Squibb: Speakers Bureau. Lomaia: Novartis: Honoraria; Pfizer: Honoraria; BMS: Honoraria; Pharmstandard: Honoraria. Voloshin: Abbvie: Consultancy, Speakers Bureau; Novartis: Consultancy, Speakers Bureau; Astra Zeneca: Consultancy, Speakers Bureau; Pfizer: Consultancy; Biacad: Consultancy, Speakers Bureau. Turkina: Pharmstandart: Speakers Bureau; Pfizer: Speakers Bureau; Bristol Myers Squibb: Speakers Bureau; Novartis Pharma: Speakers Bureau.

Genetic structure of marine and lake forms of Pacific herring Clupea pallasii.

The Pacific herring (Clupea pallasii) is one of the most important species in the commercial fisheries distributed in the North Pacific Ocean and the northeastern European seas. This teleost has marine and lake ecological forms a long its distribution in the Holarctic. However, the level of genetic differentiation between these two forms is not well known. In the present study, we used ddRAD-sequencing to genotype 54 specimens from twelve wild Pacific herring populations from the Kara Sea and the Russian part of the northwestern Pacific Ocean for unveiling the genetic structure of Pacific herring. We found that the Kara Sea population is significantly distinct from Pacific Ocean populations. It was demonstrated that lake populations of Pacific herring differ from one another as well as from marine specimens. Our results show that fresh and brackish water Pacific herring, which inhabit lakes, can be distinguished as a separate lake ecological form. Moreover, we demonstrate that each observed lake Pacific herring population has its own and unique genetic legacy.

Land use analysis of Lake Khanka basin using remote sensing data

The paper presents results of the analysis of the land use map compiled for transboundary Lake Khanka Basin using remote sensing data and geoinformation systems. The map reflects the distribution of 12 land categories in Lake Khanka basin in 2017 (arable land, abandoned arable land, paddy field, abandoned paddy field, shrubs and sparse growth, forest land, open pit, settlements, meadows and pastures, wet meadows and marshes, water bodies, forest cuttings and fire sites). The data of land use structure in the whole Lake’s watershed, in its Russian and Chinese parts are given. Data on the distribution of different land categories in the administrative territories of the rank of districts (Russia) and counties (China) are also presented. The analysis of land use structure showed that about 50 % of the Chinese part of the basin is covered by anthropogenically transformed natural complexes. The share of such lands in the territory of Russia amounts to 28 %. Agriculture is the most important factor in the change of natural complexes in Lake Khanka basin. Before early 1990s, the area of farmland had increased in the basin on both sides of the border, after that there was a significant reduction in cultivated lands, which had lasted for 10 years in the territory of China and for 20 years in Russia. Over the past decade, the area of cultivated areas in the basin and adjacent territories has extended again, which indicates an increase of anthropogenic impact and requires serious attention to monitoring of the ecological state of lands in the basin.

Nizhneleninskoye-Tongjiang international railway bridge: transit functions in the cross-border area

Strengthening interaction in a cross-border area corresponds to the presence of linear infrastructure connecting border areas of neighbouring states. One of the projects, which has been implemented since 2008 in the Russian Far East to connect the Russian and Chinese parts of the Amur area (Priamurie), is the Nizhneleninskoye (Jewish Autonomous Oblast) – Tongjiang (Heilongjiang Province) railway bridge construction. The first combined data on the ongoing changes in the transport infrastructure, the potential trade and industrial development and interaction of border areas near the constructing railway bridge are presented in the paper. It was revealed that the key project result at present is the development of transport and logistics infrastructure that provides a connection between the industrial bases of the Northern China and the Russian Far East and Eastern Siberia. The possibilities of developing an industrial cluster in the bridge sites of the two countries are still being discussed.

Range dynamics of some nemoral species of Lepidoptera in the Russian Far East due to climate change

New finds of seven East Asian Lepidoptera species in the Russian part of the southern Priamurye (Amur Basin area) are presented. Lobocla bifasciata (Bremer et Grey, 1853) (Hesperiidae), Acosmeryx naga (Moore, [1858]) and Rhagastis mongoliana (Butler, [1876]) (Sphingidae) were found in the Amur Oblast’ for the first time. Ambulyx tobii (Inoue, 1976) (Sphingidae) was first discovered in the Khabarovsk Kray; it was also found in the Chernigovsky district of the Primorsky Kray, northward from the previously known localities. New finds of very rare nemoral species, Chrysozephyrus brillantinus (Staudinger, 1887) (Lycaenidae) and Clanis undulosa Moore, 1879 (Sphingidae), in the Khabarovsk Kray are reported. It is shown that the subtropical and tropical species Siglophora sanguinolenta (Moore, 1888) (Nolidae), first collected in Russia in 2020, has successfully naturalized in the southern Khabarovsk Kray. New finds of these species indicate that the species have extended their ranges northward and naturalized in new areas. This has occurred due to climate changes in the Amur River basin over the past decades such as the rising average annual and average air temperatures during cold periods.

The use of short-acting bronchodilators in patients with chronic bronchoobstructive pathology at the present stage

Inhaled short-acting bronchodilators (beta-agonists and M-anticholinergics) have been used for a long time in patients with bronchoobstructive diseases, the main representatives of which are chronic obstructive pulmonary disease (COPD) and bronchial asthma (BA). Given the fact that most patients with COPD and BA are treated with long-acting bronchodilators, the question arises about the place of short-acting drugs in modern treatment algorithms for bronchoobstructive pathology. The data on how many patients take short-acting beta-agonists and M- anticholinergics in real-life clinical practice, and how appropriate it is to use these drugs on top of prolonged drugs are provided. The Russian part of the international POPE-study analyzed the characteristics of outpatients with COPD. It was found that the vast majority of patients have short-acting bronchodilators as part of their therapy, and more than 50% of patients receive a combination of SABA and SAAC, and in most cases this is represented by a combination of fenoterol + ipratropium. Taking into account that the majority of patients with COPD and asthma receive prolonged bronchodilators, important from a practical point of view is the question of the effectiveness of short-acting drugs on the background of prolonged ones. The article discusses these aspects of therapy and provides evidence that the use of SABA and SAAC provides an opportunity to achieve additional bronchodilatation when used against the background of prolonged bronchodilators. Thus, symptomatic use of SABA and SAAC on demand in bronchoobstructive pathology have sufficient justification even in the presence of a combination of prolonged bronchodilators in patient therapy. At the same time, it is necessary to take into account the increased probability of side effects with such drug regimen. The article also discusses the issues of different types of inhalation devices for short-acting bronchodilators (nebulizers and metered-dose aerosol inhalers), provides data on their comparative effectiveness and safety.

Ecological assessment of Eremogone saxatilis (L.) Ikonn habitat on the north-eastern border of the range

Eremogone saxatilis (L.) Ikonn – a Eurasian, boreal-temperate species distributed in the European partof Russia and Southern Siberia. Recently the species occurs in dry pine forests, on the edges, sandy forest glades, inthe steppes. Despite its rather extensive area, this species is specified in the Red Books of different regions of Russia,including the Kirov region. The aim of the research is to study the ecological and coenotic features of the Eremogone saxatilis habitat on the north-eastern border of the range. The research of the species distribution features was carried out inthe protected area “Medvedsky Bor”. On the basis of geobotanical descriptions, the analysis of ecological preferences andrealized ecological potencies of Eremogone saxatilis was carried out, which was realized out according to the amplitudephytoindication scales of D. N. Tsyganov. According to the data obtained, it was found that the studied species does nothave high adaptive capabilities to various environmental conditions. Eremogone saxatilis exists in areas with approximateconditions of its original habitats on the territory of the Kirov region. The main factors for the growth of the species werethe increased illumination and dryness on the poor soils of pine forests in the northern parts of its modern area.

Peculiarities of Tertiary petroleum systems evolution under prograding shelf environment on the continental margin of the East Siberian Sea

The upper part of the sedimentary cover within the East Siberian Sea shelf comprises Cenozoic clinoform deposits, which accumulated in passive continental margin settings. In the Eastern Arctic, the productivity of clinoform deposits has been proved on the Alaska North Slope and in the Beaufort–Mackenzie Basin. Considering that Cenozoic clinoform deposits are widely represented in the Russian part of the Eastern Arctic, they undoubtedly attract considerable interest from the standpoint of hydrocarbons prospecting. However, despite increasingly closer attention to this interval of the sedimentary section, it is still poorly understood due to its complicated geology. The lack of drilled wells in the region imposes a considerable limitation on an understanding of sedimentary basins development. In this situation, geophysical data become the primary source of information for building geologic models in the Russian sector of the Eastern Arctic. An assessment of hypothetical Cenozoic petroleum systems of the East Siberian Sea is the main objective of this paper. It is to be said research performed under high uncertainty of input data. The results obtained from basin analysis and numerical modeling indicate the possibility that an active petroleum system may exist in the Cenozoic sedimentary wedge of the East Siberian Sea. The outlook for the clinoform complex largely depends on the source rock maturity, i.e., higher prospects should be expected in areas where the prograding wedge has maximum thickness. Considering all factors (reservoir quality prediction, proximity to a hydrocarbon kitchen, timing), the Eocene–Oligocene part of the sedimentary section appears to offer the greatest promise within the study area. Here, predominantly oil accumulations may be expected at a depth of 2.5–3.5 km below sea bottom.

The Role of Political and Electoral Technologies in Continuing the Church and Civilization Schism in Ukraine

This article examines the impact of the church schism in 2018 on the change in the civilizational identity of modern Ukrainians. Modern Ukraine is in the zone of the conflict of Russian and Western civilizations, openly expressed since 2014. One of the strategies for resolving the conflict appears to be changing the civilizational identity of the enemy by transforming the cultural core of civilization, which also includes religion and religious practices. The transformation of the civilizational core in Ukraine occurs through the instrumentalization of religion, which turns into a way to solve the internal and foreign policy problems of the modern Ukrainian government. This article studies the history of the establishment of the Orthodox Church of Ukraine (OCU) in 2018, the reception of tomos from the Constantinople Patriarchate and the confrontation between the OCU and the Ukrainian Orthodox Church of the Moscow Patriarchate (UOC-MP), which acts as a conductor of the Russian civilization's influence. The internal goals of the Ukrainian government, achieved through a church schism, include reducing the consolidation of society and strengthening its own position in a fractured society. Their foreign policy objectives involve reducing the cultural influence of Russia, excluding the Russian part of the Ukrainian society from receiving the Russian civilization's values and changing the civilizational identity of Ukrainians. One way to change the civilizational identity of Russians in Ukraine while formally preserving the Orthodox religion in the country involves promoting eucharistic ecclesiology, which is not historically rooted in the Orthodox Church and has been developing since the mid-20th century as an alternative to the universal ecclesiology. The latter assumes that the universal church is not reduced to the sum of its parts, that the criterion for correct faith is the unity of the episcopate, and that maintaining the integrity of the empirical church is one of the values of church communion. Eucharistic ecclesiology presumes that the fullness of grace is contained in each experiential community united by the common Eucharist. Eucharistic ecclesiology aids in instrumentalizing the church and turning it into the spokesperson for the secular interests of communities, which is already happening in Ukraine. This article shows that despite the church schism itself does not remove Ukrainians from the Russian civilizational space, it includes church communication into the foreign policy of reducing the Russian cultural influence in Ukraine and changing the civilizational identity of its inhabitants.