Adjacent Territories Research Articles

<i>Inula aucheriana</i> (Asteraceae), a new species to the flora of Azerbaijan

For the first time, Inula aucheriana DC. is reported for the flora of Azerbaijan. Information is provided on its location in this territory, as well as on its distribution in the Caucasus and adjacent territories.

SIMULATION OF GEOELECTRIC STRUCTURE OF NORTHERN VIETNAM BY 3D INVERSION OF MAGNETOVARIATIONAL TIPPERS

This paper presents the results of constructing a model of the geoelectric structure of Northern Vietnam obtained by 3D inversion of magnetovariational tippers calculated for 13 values of variation periods in a range of 40–10047 s at 12 points where geomagnetic variations are recorded. Inversion is performed using the ModEM software, which makes it possible to construct a model in a 400 × 400 × 200-km spatial region with the center at the Hanoi Observatory (PHU). The resulting model of the geoelectric structure contains two regional blocks separated by the Red River fault region. A conductive block is located in the southwest of the fault region, and a high-resistivity block is located in the northeast. The boundary of the blocks, inclined to the northeast at an angle of about 45°, is visible to a depth of 150 km. The conductive block occupies the region between the Red River and Song Ma faults. Its western boundary could not be localized due to insufficient data in this region. Highly conductive local blocks stand out against the background of the regional conductive block. They usually gravitate toward the faults and are located in a depth range of 10–20 km with a slight inclination to the west on latitudinal profiles and to the south on meridional ones. In a depth range of 12–14 km, they merge into one highly conductive band extending in the northwest and marking the Red River fault system connected to the Gulf of Tonkin waters. Also, there are more massive highly conductive blocks in depth intervals of 20–50 km, which are often associated with upper crustal ones. There is a highly conductive block observed on the latitudinal profile, passing through the central region of the Hanoi Basin, and steeply dipping to the east (75°) to depths of more than 100 km. The deep geoelectric features of the Red River fault system are compared with the geoelectric section under their continuation in Southern Tibet in the adjacent territory in China.

MINERALOGICAL, PETROGRAPHIC, AND LITHOCHEMICAL FEATURES OF THE UPPER JURASSIC–LOWER CRETACEOUS SECTION OF THE NORDVIK PENINSULA (NORTH OF EASTERN SIBERIA)

Some intervals of the Jurassic–Cretaceous strata of the Anabar-Lena sedimentary basin have a certain oil and gas production potential, which can be realized in the synchronous offshore horizons of the adjacent territories of the Arctic shelf. Among the most representative objects in this regard are the outcrops of Upper Jurassic and Lower Cretaceous formations of the Nordvik Peninsula. The main data on the composition and structure of this section were obtained mainly at the beginning of the second half of last century. The results of complex mineralogical, petrographic, and lithochemical studies of the Urdyuk-Khaya and Paksa formations of Cape Urdyuk-Khaya of the Nordvik Peninsula presented in here enabled us to identify 10 boundaries for changing of sedimentation regimes of the paleobasin. It was found that the Urdyuk-Khaya Formation was formed mainly in the conditions of the shelf transition zone (moderate deep water) with low rates of terrigenous material intake, some depletion of oxygen in bottom waters, and a trend towards an increase in the depths of the basin. The basal stratum of the Paksa Formation was formed in offshore conditions with periodically occurring dioxic conditions in bottom waters and extremely low rates of terrigenous material intake. The overlying part of the formation was formed in various parts of offshore transition conditions with a gradual decrease in the depths of the basin, an increase in the oxygen content in the bottom layer of water, and the rate of terrigenous material intake. The main provenance area was igneous rocks of mafic, possibly intermediate composition. There was some influence of felsic igneous rocks, or ancient sedimentary rocks rich in quartz. The parent strata were subjected to moderate and severe chemical weathering, in a warm humid climate. The revealed features of the studied strata are similar to the characteristics of the same-age sediments of the lower reaches of the Anabar River, which determines their high correlation potential and allows us to judge the evolution of the western part of the Anabar-Lena basin.

Estrous cycle regulates cephalic mechanical sensitivity and sensitization of the trigemino-cervical complex in a female rat model of chronic migraine.

The higher incidence of migraines in women compared with men has led to the inclusion of female animals in pain research models. However, the critical role of the hormonal cycle is frequently overlooked, despite its clear correlation with migraine occurrences. In this study, we show in a rat model of migraine induced by repeated dural infusions of an inflammatory soup (IS) that a second IS (IS2) injection performed in proestrus/estrus (PE, high estrogen) female rats evokes higher cephalic mechanical hypersensitivities than when performed in metestrus/diestrus (MD, low estrogen) or ovariectomized (OV) rats. This hypersensitivity induced by IS2 correlates with increased c-Fos expression in outer lamina II (IIo) neurons located in the periorbital projection area of the trigemino-cervical complex (TCC), in PE only. Four IS (IS4) repetition induced an enlargement of c-Fos expression in adjacent territories areas in PE, but not MD or OV animals. Unexpectedly, c-Fos expression in locus coeruleus neurons does not potentiate after IS2 or IS4 injections. To examine the impacts of the hormonal cycle on the physiology of lamina IIo TCC neurons, we performed whole-cell patch-clamp recordings. Second inflammatory soup depolarizes neurons in PE and MD but not in OV rats and enhances excitatory synaptic inputs in PE animals to a greater extent compared with MD and OV rats. These findings show that central TCC sensitization triggered by meningeal nociceptor activation and the resulting cephalic hypersensitivity are modulated by the estrous cycle. This highlights the crucial need to account for not just sex, but also the female estrous cycle in pain research.

Determination of geochemical stability of swamp ecosystems of the taiga zone of Western Siberia to anthropogenic impact

Relevance. The need for scientifically based regulation of impacts on wetland ecosystems taking into account their specificity and geochemical stability. Aim. To determine the geochemical stability of wetlands in the taiga zone of Western Siberia to pollutants for two typical cases associated with: 1) operation of sludge pits; 2) discharge of domestic and industrial wastewater. Methods. Mathematical modeling, statistical methods. Results and conclusions. The authors have carried out the analysis of the results of studies of the chemical composition of wetland waters and extracts from peat and mineral soils of wetlands in the taiga zone of Western Siberia (mainly in the Tomsk region, as well as in the adjacent territories of the Khanty-Mansiysk Autonomous Okrug, Novosibirsk and Omsk regions). They obtained the estimates of the average values of geochemical indicators of wetland waters and peat by the depth of the peat deposit in peat bogs with varying degrees of anthropogenic impact. The paper introduces the method for assessing the anthropogenic impact of wastewater discharge and geomigration on swamps in areas where oil and gas facilities are located (permissible concentrations in wastewater entering swamp ecosystems), taking into account the «geochemical background» and sorption capacity of peat. In particular, the authors substantiated and tested the method for assessing the values of permissible concentrations, which should be considered as a «relatively safe» level of impact on swamp ecosystems, at which secondary pollution of swamp waters is not expected. It is shown that anthropogenic changes are mainly limited vertically by the upper layer of the peat deposit up to 1–2 m, and horizontally (within the active horizon of the peat deposit) – by areas up to 100–200 m.

Topological differentiation of vegetation of the Lublin-Volyn geobotanical district

The position of the Lublin and Volyn (Volhynian) uplands within the geobotanical zonation system is ambiguous and disputable. An analysis of the syntaxonomical diversity and landscape distribution of the egetation of the Lublin and Volyn uplands revealed their similarity, and we consider this whole territory as the Lublin-Volyn geobotanical district of hornbeam-oak, oak forests, and steppe meadows. This district differs from the adjacent territories and is classified within the Central European mixed forests ecoregion. Typical and diagnostic syntaxa have been identified, and ecological-coenotic profiles have been constructed to characterize the distribution patterns of shrub-forest and herbaceous vegetation within the landscape. Based on calculations of phytosociological indicators for the main ecological factors, graphical patterns of their variation were developed. It was determined that the characteristic forests of the district, Tilieto-Carpinetum (Carpinion betulis), are represented by four variants (T.-C. var. galeobdolosum; T.-C. var. hepaticosum; T.-C. var. caricosum pilosae; T.-C. var. isopyrosum). The district is also characterized by the presence of syntaxa associated with carbonate soils, both of the marsh type (Caricion davallianae) and the meadow-steppe type (Cirsio-Brachypodion, Festucion valesiacae), with the dominance of Carex humilis and Stipa capillata. Using DCA-analysis, the correlation between ecological factor indicators and the distribution of plant communities within the ecological space has been established, forming six fields distributed along three vectors: by moisture (aquatic and marsh communities), xerophytism, and chemical properties of soils (meadow-steppe communities), as well as the structure of coenoses with a specific ombroregime (forest communities).

Political Culture and Cyclical Conflict in Ethiopia: Exploring the Generative Dynamics of Political Crisis in the 2020s

Ethiopia is frequently facing serious political–communal conflict. Prevailing narratives attempting to identify causes often focus on presumed ‘ethnic’ groups and inequalities – a perspective crystallized especially in the past ca. 30 years. While Ethiopia as a socio-political domain existed for ages before the Emperor Menilik period (1889–1913) of incorporation of adjacent territories, the question emerges whether the ‘roots’ of recent armed conflicts are as much contemporary-political as historical, and related to an established political culture, based on resilient authoritarian values among both elites and the wider population. Ethiopia’s current unresolved conflict dynamics need a renewed analysis of not only history and ‘political economy’ but also of recent constitutional features and group politics, which strongly impacted on its political culture. On the basis of document study and interviews, I examine crucial features of such recent processes so as to re-evaluate the specific articulations of ethno-regionally based governance in Ethiopia in recent years to find causal elements fuelling the repetitive cycles of conflict.

Polymorphic Loci of Adaptively Significant Genes Selection for Determining Nucleotide Polymorphism of Pinus sylvestris L. Populations in the Urals

Background: Scots Pine is one of the main forest-forming species in boreal forests; it has great economic and ecological significance. This study aimed to develop and test primers for detecting nucleotide polymorphisms in genes that are promising for detecting adaptive genetic variability in populations of Pinus sylvestris in the Urals and adjacent territories. Objectives: The objects of the study were 13 populations of Scots Pine located in the Perm Territory, Chelyabinsk Region, and the Republic of Bashkortostan. Results: Sixteen pairs of primers to loci of potentially adaptively significant genes were developed, from which three pairs of primers were selected to detect the nucleotide diversity of the studied populations. The indicator of total haplotype diversity determined in the three studied loci varied from 0.620 (Pinus-12 locus) to 0.737 (Pinus-11 locus) and, on average, amounted to 0.662. The nucleotide diversity indicators in P. sylvestris in the study region were, on average, low (π = 0.004, θW = 0.013). Their highest values were found at the Pinus-12 locus (π = 0.005; θW = 0.032), and the lowest were found at the Pinus-15 locus (π = 0.003; θW = 0.002). This indicates that Pinus-15 is the most conserved of the three studied loci. In the three studied P. sylvestris loci associated with adaptation to environmental factors, 97 polymorphic positions were identified. The 13 populations of P. sylvestris are characterized by an average level of genetic diversity (Hd = 0.662; π = 0.004; θ = 0.013). Conclusions: The polymorphic loci of adaptively significant genes of P. sylvestris can help identify the adaptive potential of pine forests in conditions of increasing ambient temperatures.

ОЦІНКА ПОТОЧНОГО СТАНУ РАДІАЦІЙНОГО ЗАБРУДНЕННЯ ТЕРИТОРІЇ МАЙДАНЧИКУ УРАНОВОЇ СПАДЩИНИ КОЛИШНЬОГО ВО «ПХЗ»

The article summarizes the results of long-term radioecological monitoring of the environment radioactive state within the former 'Prydniprovsk chemical plant' and adjacent territories at the preparatory stage life cycle of uranium legacy site. Data analysis have been determined the background activity levels of natural radionuclides (in particular 238U, 226Ra, 230Th, 210Pb, 210Po) in soils, underground and surface waters, air (fall density and volume activity), exhalation of 222Rn from the soil surface and its volume activity. The results of the determined dynamics and trends in the formation of pollution of environmental elements, which form the main factors of exposure of workers and the population, are presented. Areas with elevated dose rate (≥0.5 μSv·h-1) occupy more than 30% of the entire legacy site territory. In the soil activity may be 10 to 1000 times higher than background (30-50 Bq·kg-1) and can exceed 1000 times the exemption level. In aerosols 238U and 226Ra activitis exceeding the background (0.1 µBq·m-2·s-1, 11.5 µBq·m3) by 100-200 times only during periods of earthworks, under normal conditions they are up to 1.5-2.0 times. The monthly average activity 222Rn in the air of open space are 4-5 times higher of the background (median 200±68 Bq∙m-3), in some areas they can exceed by up to 50 times. In the buildings premises on the site 222Rn can exceed the reference level (250 Bq∙m-3) by 1-5 times, and in individual basements by up to 100 times. The data analysis proves that main ways of exposure of workers are external gamma radiation, the inhalation exposure routes from aerosol pollution and the spread of OA 222Rn in the air can be significant only for workers work at the legacy site and do not pose a threat to the city's population. Radiation assessment contamination of underground and surface water showed in present conditions aquatic pathways cannot form any significant contributions to the radiation exposure dose of the public. The obtained results and data analysis of monitoring observations were used to substantiate the measures of the remediation strategy legacy site.

Buryatia strelnikovae (Bacillariophyta), a New Species of Diatoms for Science

The study of algological material from tundra lakes of the adjacent territories of the Ust-Lena Reserve (Yakutia) using scanning electron microscopy revealed a new species of diatoms for science Buryatia strelnikovae sp. nov. The new species has morphological similarities with other species of the genus B. oviformis and B. crassa. It differs from the former by large values of the number of striae and areolae of 10 µm, from the latter by smaller length and width of the sash and large values of the number of strokes and areoles of 10 µm, but differs from them in smaller leaf length and width, large values of the number of striae and areolae of 10 µm.

COMPLICATED THERMAL HISTORY OF THE LITHOSPHERIC MANTLE OF THE ANABAR REGION: RECONSTRUCTIONS BASED ON XENOCRYSTS FROM KIMBERLITES

The thermal history and thickness of the lithospheric mantlebeneath the kimberlite fields of the Eastern Anabar shield and adjacent territories of the Siberian craton were reconstructed based on the composition of clinopyroxene xenocrysts from the concentrate of kimberlite heavy fraction and mantle xenoliths. Garnet and spinel peridotites are most abundant in the lithospheric mantle beneath the five studied fields of the Siberian craton. Almost in all fields, the Mg# index of clinopyroxene decreases through depth. In the oldest Chomurdakh kimberlite field, both TiO2 and FeO contents vary slightly. The titanium oxide values markedly vary from 0 to 0.6 wt. % in the Triassic fields. The high titanium oxide contents in minerals are indicative of deep­seated metasomatic transformations of lithospheric mantle blocks in the northern Yakutia kimberlite province. The geotherm was fitted to the PT data set in the Gtherm program with the model involved D. Hasterok and D. Champan. The thermal lithosphere beneath the studied fields retained the thermal thickness up to 260 km. In the period between 430 and 230 Ma, it underwent a significant metasomatic transformation resulting in the formation of high­Fe and high­Ti blocks. It appears, that the thermal thickness declined to 190–200 km only in the north of the Siberian craton during the Jurassic period. This assumption is verified by the values of lithosphere thickness beneath the northern Kuoika field.

Affinities of the Sargat Population in the Baraba Forest-Steppe

Within-group, between-group, and comparative analysis of craniometric data relating to local and chronological samples of the Sargat population (5th century BC to late 3rd / 4th century AD) was carried out. The study focuses on sample from the Baraba forest-steppe. Comparative analysis, performed with the principal component method, included Early Iron Age samples from adjacent territories. No discontinuity was found in the spatio-temporal cranial variation among the Sargat groups. Despite differences between the three Sargat samples (Baraba, Irtysh, and Trans-Ural), they all represent one and the same Caucasoid physical type, characterized by meso-brachycrany, medium-high braincase, wide low, and somewhat flattened face, moderately inclined frontal bone, and protruding nasal bones. The Baraba group differs from two others by a wider face, larger pyriform aperture, and largest dacryal width. Comparative statistical analysis indicates affinities of the male part of Sargat groups with nomads of the Urals and Kazakhstan—Saka, Sauromatians, and Sarmats. Possibly, military campaigns by the Achaemenid state against the nomadic tribal unions of Central Asia in the second half of the 6th century BC triggered the migration process. Initially, migrants moved to the Irtysh basin, and thence to the western (Trans-Ural) and eastern (Baraba) peripheries of the emerging Sargat culture. The female part of the population was less affected by migratory processes. Female samples of the Sargat reveal an autochthonous cranial complex.

Magnetostratigraphy of the upper Jurassic and Lower Cretaceous deposits of the Bolshekhetskaya structural terrace

Relevance. The confinement of hydrocarbon deposits to certain stratigraphic horizons, poor knowledge of the northeast of Western Siberia and adjacent territories, including the magnetostratigraphic method, with their oil and gas potential (over the past 10 years, four unique hydrocarbon deposits have been discovered here), the boreal nature of the deposits, and the need for remote magnetostratigraphic correlations. Aim. To create a magnetostratigraphic reference section of the northeast of Western Siberia. Objects. Sections of deep wells of the Pendomayakhskaya, Vostochno Suzunskaya, Vostochno Lodochnaya and Gorchinskaya areas of the Bolshekhetskaya structural terrace, which exposed the Lower Cretaceous and upper parts of the Upper Jurassic (Yanovstan Formation) deposits. Methods. Paleomagnetic studies were carried out according to standard methods and included sampling of core samples with an "up-down" orientation, sample preparation (kappametry, marking of samples, photographing, sawing), measurement of magnetic susceptibility, temporary cleaning (the samples were located along the field during a week, then a week-against the field with determination of residual magnetization), complete demagnetization by alternating magnetic field, plotting of complete demagnetization, mass cleaning, determination of components of natural residual magnetization, assessment of paleomagnetic stability, identification of forward and reverse polarity zones, construction of paleomagnetic sections. To construct the magnetostratigraphic sections given in this article, the paleomagnetic and biostratigraphic data are linked. For this purpose, magnetochrons were identified using biostratigraphic analysis. Results. The authors have compiled a composite magnetostratigraphic section of the boundary Jurassic-Cretaceous deposits of the Bolshekhetskaya structural terrace and identified four magnetozones with subzones of direct and reverse polarity, compared with the Berriasian ammonite scale. The high information content of the results of magnetostratigraphy research under boreal conditions was noted.

Studies of the cultural layer of the cities of Ufa and Birsk (based on the example of the work of the archaeological expedition of the "Ancient Ufa" museum-reserve)

The article presents the results of an analysis of the latest data of recent years, obtained during archaeological research of the first fortified settlements on the territory of the Republic of Bashkortostan. In the course of the work the analysis reviewed materials from archaeological heritage sites located in the historical center of the modern cities of Ufa (“Hillfort Ufa-II” and “Cultural layer of Ufa dated the late 18th – early 20th century at 29 Sochinskaya street”) and Birsk (“Old Birsk, historical cultural layer and burial ground”). Despite the fact that archaeological sites are subject to a significant anthropogenic influence, the obtained corpus of sources complements the information about the formation of the Russian population and their local tangible culture in chronological terms between 16th and the early 20th century. Studied fragments of pottery revealed differences and features of pottery traditions in the ornamentation, shapes of dishes and additional processing. The materials obtained from the site of Ufa-II indicate local damage (redeposited layer) of the cultural layer and no stratified layers of the New Age. Despite a more significant anthropogenic impact Sochinskaya Street is found with a local patch of preserved cultural layer dated by the period in question. Thus, it will make the reconstruction of the main stages of development of the immediate surroundings of the Ufa Kremlin possible. Alongside it will allow analysis of the adjacent territory. The research on the territory of Birsk documents a good condition of the lower cultural layer of the 17th–18th centuries. The potential of archaeological research of the city lies not only in studying the local features of the tangible culture of the local population, but also in the opportunity to describe the period of the early Russian settlement in Bashkiria in the 16th–18th centuries.

Eastern-Urals radioactive trace as a source of genetic diversity in rodents populations at adjacent territories

Eastern-Urals radioactive trace as a source of genetic diversity in rodents populations at adjacent territories

Integrated approach to determining the identity of the pollution of adjacent territories with oil products

The methodology of arranging laboratory studies of oil-contaminated soils, soils and bottom sediments to determine the source and composition of hydrocarbon contamination is described. The complex approach to laboratory analysis of samples of oil-contaminated soils, soils and bottom sediments is proposed, which allows a highly reliable identification of the potential source of contamination and/or making conclusions about the identity of the contamination of adjacent territories. The proposed complex of analytical methods includes infrared spectrometry, gas chromatography with mass-selective detection, thin-layer chromatography with flame ionization detection and elemental analysis (C, H, N, S, O). Application of the proposed integrated approach allows highly reliable determination of the nature of oil contamination of soils, estimation of the total gross content of oil products and their hydrocarbon composition, and identification of the potential source of pollution. Possible errors in the interpretation of the results of determining the identity of contamination of territories and the importance of using an integrated approach in drawing conclusions about the source (culprit) of pollution are shown using real soil samples taken from oil-contaminated objects and adjacent territories. The importance of taking into account the losses of volatile oil products at the stage of sample preparation for soil contamination with light oil fractions is demonstrated. The use of standard methods of sample preparation (drying of the samples under study) leads to errors in assessing the level of contamination of territories with volatile hydrocarbons and in the choice of methods of remediation of contaminated territories. To minimize losses of volatile hydrocarbons (petrol and naphtha fractions) at the stage of soil sampling and transportation the use of sorbent is proposed. Addition of a sorbent to the soil contaminated with oil products can reduce losses of volatile hydrocarbons by 15 – 20% in the analyzed samples. Application of the developed complex approach makes it possible to determine the features of the individual hydrocarbon composition, group and elemental composition of petroleum products and identify hydrocarbon indicators (markers) inherent only to a certain type of petroleum product.

On the Question of the Social Origins of Early Cossack Communities: Results, Methodology and Prospects of Research

Introduction. Addressing the complex and controversial problem of domestic Cossack studies – the determination of the stage affiliation of early Slavic Cossack communities – the author sets himself the task of summing up many years of discussions, identifying the most promising directions for further research, and identifying the associated methodological guidelines. Methods and materials. Many studies of the problem of the stage affiliation of early Cossack communities, carried out by pre-revolutionary, Soviet, and modern Russian Cossack researchers, as well as works on male unions and communities of the Slavic, Caucasian, and Turkic worlds, served as materials for the article. The analysis of sources and scientific publications was carried out using comparative historical and structural-functional methods, as well as methods of classification and typologization. Analysis. The available scientific papers on the problem were classified based on the social and political prototypes of early Cossack communities determined by scientists. Three groups of versions about the social nature of early Cossack communities have been identified, which correlate them: 1) with state structures; 2) with paramilitary communities that existed in the South Russian steppes and adjacent territories at the same time as the Cossacks; 3) with archaic structures (the so-called military democracy and male unions). Results. Defining the third direction as the most promising, the author of the article suggests expanding research on the cultural and historical comparison of Cossack organizations with archaic male unions and their later forms known in the Turkic, Caucasian, and Slavic worlds. We should start this case by adhering to a set of crucial methodological principles. These principles indicate that male unions were cultural universals, and their correlation with Cossack organizations may indicate not so much (and not only) genetic connections as typological ones. In contrast to the Caucasian and Central Asian unions, Cossack communities arose outside the metropolis, which, on the one hand, led to the need for them to build their own potestar structures and, on the other hand, determined the strong external impact on them from the Russian state. The development of Cossack communities did not follow the path of evolution but was first carried out in the form of a rollback to the archaic and then was associated with a series of sociocultural transformations.

Possibilities of forming a territorial development zone "Vetluga - Sura". Some directions for the development of water tourism and infrastructure

The article proposes the creation of a territorial development zone "Vetluga-Sura" in the Volga Federal District, the purpose of which should be to increase the economic level of remote areas, improve the standard of living of the population, as well as increase the number of residents both along the banks of the Vetluga and Sura rivers and in the adjacent territories of the region. Within the framework of the territorial development zone, public investments in transport infrastructure are envisaged, including the creation of ship passages on the Vetluga and Sura rivers. In this regard, a wide range of investment projects aimed at the development of the tourism cluster, as well as industry, agriculture and other industries in the region are expected. A significant result of the implementation of the Vetluga-Sura territorial development zone may be the revival of passenger and freight traffic on small rivers in the region. The creation of the Vetluga-Sura territorial development zone is proposed as a pilot project to develop a model of territorial development based on the revival of small rivers and subsequent application in more than 20 other regions.

CERTAIN ASPECTS OF RESEARCH WORK IN THE RESTORATION OF THE KYIV VELODROME

Kyiv Velodrome is the oldest sports facility in Ukraine and one of the oldest in Europe. In 2016-2017, the restoration of its track, administrative building, construction of an underground parking lot and reorganization of the adjacent territory were carried out. As part of the scientific and technical support, an examination of the velodrome track was carried out to determine all existing defects and damages and as a result, recommendations for their elimination were provided. In particular, solutions have been developed to repair cracks and recommended measures are aimed at preventing their appearance in the future. Also, within the scope of research work, some experimental studies were carried out with the designed constructions of the bicycle track for their compliance with the technical documentation and to establish durability (in laboratory conditions). The article analyzes and researches the structural and technological solutions proposed in the project documentation for the restoration and arrangement of the bicycle track, providing solutions and recommendations that will ensure the necessary quality and the project's design life. Thus, recommendations are being considered to reduce the likelihood of the appearance of new cracks and the development of existing ones on the track.

All-Russian scientific conference with international participation “Vegetation of the Baikal Region and adjacent territories” (Ulan-Ude, October 26–27, 2023)

Information on All-Russian scientific conference with international participation “Vegetation of the Baikal region and adjacent territories” is presented. The conference was held on October 26–27, 2023 in Ulan-Ude, at the Dorzhi Banzarov Buryat State University.