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We present new data on the composition and U-Pb (LA-ICP-MS) age of detrital zircons from the Carboniferous sedimentary rocks of the Siberian Platform cover, in which diamonds and accessory minerals were found, namely, the Baeronovka Formation in the southwest and the Tushama and Kata formations at the center of the Siberian Platform. The geochemical characteristics and results of analysis of minerals of the heavy fraction from the Baeronovka Formation indicate a predominantly felsic composition of the provenance rocks. The latter are, most likely, the rocks of the Cis-Sayan uplift of the Siberian Platform basement, including mostly Paleoproterozoic granitoids and volcanic rocks of the South Siberian postcollisional magmatic belt. Smaller amounts of detrital material got into the sedimentation basin of the Baeronovka Formation through the destruction of early Paleozoic rocks at the northern segment of the Central Asian Orogenic Belt. The geochemical characteristics of the terrigenous rocks of the Carboniferous Tushama and Kata formations testify to a felsic composition of the provenance rocks, but the mineral compositions of the heavy fractions indicate different compositions of these rocks. These data and the age of detrital zircons suggest that the Neoproterozoic sedimentary rocks and middle Paleozoic igneous rocks of the Baikal-Patom zone on the southern margin of the Siberian Platform and the Middle Paleozoic igneous rocks of the Vilyui rift and the Yakut diamondiferous province are the main provenances for the Tushama and Kata formations. The established differences in the composition and age of provenance rocks for the Carboniferous sandstones of different areas of the Siberian Platform confirm the earlier conclusions about the existence of several local sedimentary basins within it in the Devonian-Carboniferous. These basins formed after the middle Paleozoic tectonomagmatic activity accompanied by diamondiferous lamproite and kimberlite magmatism.

The paper considers the age, composition, and genesis of granitoids of the Soktui massif, a petrotype of the Kukul’bei Complex of Mesozoic rare-metal granites in Transbaikalia. The Soktui massif is heterogeneous; it comprises several petrographic varieties: monzogranite-monzoleucogranites and microleucogranites of the major intrusive phase and alaskites, alkali-feldspathic granite porphyry, granodiorites, and quartz syenites of the phase of additional intrusions. According to the obtained U-Pb geochronological data, the ages of all varieties are the same within the analytical error and correspond to the Early Cretaceous. The granitoids are diverse in geochemical characteristics: The monzogranite-monzoleucogranites of the major intrusive phase belong to the rare-metal plumasite type, and the rocks of the phase of additional intrusions show signs of A -type granitoids. The geochemical and isotope characteristics of the rocks confirm the contribution of both continental crustal substrates and deep-seated mantle-derived magmas to their formation. The contents of volatiles in micas and the composition of fluid and melt inclusions indicate the involvement of two types of fluids in the magma generation: reduced chloride (probably mantle) and more oxidized fluoride (presumably of lower-crust origin). All melts were generated at depths of no more than 30 km, and the depth of the massif formation was shallower than 8 km. Based on the obtained data, we propose a model for the formation of the massif rocks.

The study compares in detail the signals of an electromagnetic tool with toroidal coils which were measured in an electrolytic tank with a borehole and numerically calculated in its three-dimensional geoelectric model. For each electrical resistivity of the electrolyte, we performed the profiling of the air-tank and tank-borehole boundaries during round-trips of the tool. The values of the coupling coefficient of the measured and modeled signals have been determined for the entire set of frequencies and positions of the measuring coils in the summary and differential operating regimes. We have identified a pair of signals with a virtually constant coupling coefficient at varying electrolyte mineralization. Drawing on this pair, transformations of the tool signals into the apparent electrical resistivities of the geoenvironment have been constructed. The resulting transformation graphs allow a reliable recalculation of the measured signals of the toroidal tool into the apparent electrical resistivity distribution in the near-wellbore space, which is necessary for the petrophysical interpretation of the field log data.

Paleointensity determinations of the geomagnetic field in the Proterozoic were obtained using a set of rocks sampled from intrusive bodies in the north of the Siberian platform aged ~1500 Ma. Magnetic and thermomagnetic properties of rocks were studied in detail. X-ray diffraction and electron microscopic analyses were performed. It is shown that single- and small pseudo-single-domain magnetite grains serve as carriers of the characteristic natural remanent magnetization component. Paleointensity B _anc was determined using the Thellier-Coe method with the checkpoint procedure (test heating to lower temperatures) and the Wilson-Burakov method. A total of 22 determinations (34 with duplicates) satisfying modern reliability criteria were obtained for six sites. All of them exhibit low values of the field magnitude and virtual dipole moment. They change within a range of (4.7-17.6) μT and (1.21-3.85) ×10²² Am², respectively, which is approximately four times lower than their mean values in the modern era. Paleointensity determinations for the Proterozoic presented in the international database and the inclination function a ( I ) = 1/(1 + 3cos²(I))^1/2 were subjected to a joint analysis. It is revealed that the data on the diagram ( B _anc, a(I)) are divided into high- and low-paleointensity clusters. At the same time, both clusters indicate a dipole field geometry regardless of intensity. The analysis confirms the hypothesis of the bimodal geomagnetic field generation regime in the Proterozoic, which may indicate the absence of a solid inner core in the early and middle Proterozoic, attributing its formation to a later era (Ediacaran).

In recent years, in Russia one observes an increase in the number of administrative complaints about housing and communal services. The increase in the number of appeals may be caused by various factors not directly related to the state of housing: institutional contradictions, new forms of competition in the market, public sentiments, etc. The communication component of the complaint remains unchanged. However, the transition to a new form of interaction through digital state portals may have affected the ways of information delivery and the rules of communication between complainants and responsible persons. The purpose of this article is to identify changes in the institution of administrative complaints during the transition to state digital portals. Using the program written by the author, an automated data collection of 670,000 complaints about housing and communal services in 17,000 apartment buildings on the portal “Nash St. Petersburg" was conducted. It was established that the simplification of filing complaints on the digital portal led to the formation of a “‘gray mass" of appeals, for which there is no clear geographic focus and unity of issues. The gray mass includes complaints of “‘activists " and residents with non-typical single appeals. The main increase in the number of complaints is not due to new users of the portal, but due to the increase in appeals from activists, who account for up to 80% of the total number of complaints. A transformation of the rules of filing and reviewing complaints has been revealed, which allows the institution of administrative complaints to function in a relatively new environment. The portal administration develops new mechanisms to curb the flow of appeals, filtering contentless complaints, focusing on the most problematic issues. Residents instead of generating an excessive volume of complaints cooperate around previously submitted appeals, confirming the relevance of the problems. This mechanism greatly increases the level of satisfaction of residents with solving the reported problems. The results of the study allow us to identify the transforming elements of the institute of administrative complaints, new drivers and barriers to developing this communication tool in the present-day Russia.

To date, the question of whether investments are a driver of innovative development, what factors and conditions ensure the achievement of the expected innovative effects remains debatable. The purpose of this study is to investigate the relationship between investment in fixed assets and indicators of innovation development in the region. The object of the study is the regions of the South of Russia. The source of information was panel data from the Federal State Statistics Service for the regions of the Southern Federal District for the period from 2005 to 2022. The research employs comparative and correlation analysis. The authors put forward the following hypotheses: 1) investment and innovation activities in times of crisis are activated in those regions that have high indicators of socio-economic development; 2) there is a positive relationship between investments and innovations at the regional level, while for entities with higher indicators of socio-economic development, this relationship is expressed more strongly. The results of the study generally confirmed the hypothesis that the relationship between investments in fixed assets and innovation is manifested more strongly in regions with a high level of socio-economic development. With regard to the second hypothesis, the results of the analysis are ambiguous, which does not allow us to fully confirm or refute the assumption that there is a positive relationship between investments in fixed assets and indicators of innovative development of regions. The difference in strength and orientation between the indicators of investment and innovation activity is explained by the sectoral specifics of the socio-economic complexes of the regions, as well as the specifics of regional factors and conditions. It is concluded that in order to stimulate innovative processes in the regions, state support for the technological renewal of production through investments in new highly effective technologies is necessary.

The purpose of the study is to identify key areas and possible ways to introduce digital tools in the process of participator budgeting in order to improve its efficiency, transparency and accessibility for citizens and authorities. The research used a systematic approach, methods of classification and systematization, methods of assessments and scientific abstractions, as well as methods of analysis and synthesis of information, in-depth interview method. Based on the Russian experience, the research results in the field of digitalization of mechanisms of civic participation in state and municipal governance are presented. Digital solutions leading to transformations in the framework of participator budgeting are considered, existing barriers are identified and methods to overcome them are proposed. Practical steps to a successful implementation of digital technologies in this sphere are identified, and the basis for strategic scenarios of digitalization is developed. The authors reviewed and analyzed the mistakes made in developing a strategy for the development of digital solutions in budgeting initiatives in order to optimize future processes and improve their efficiency. The main task in the field of digitalization of participator budgeting at present is the formation of strategic approaches to its implementation, with consistent improvement of the functionality of portals of participatory budgeting based on federal and regional standards of digitalization, inclusion, data security and efficiency of digital solutions. The research material can be used in the development of approaches to harmonize sectoral strategic and program documents, drafting program documents for the development of participatory budgeting in the constituent entities of the Russian Federation and implementing digital solutions in the work of regional competence centers for participatory budgeting.

In Russia, the transition of territorial organization and local self-government to a single-level management system is aimed at improving the level and quality of performance by regional and municipal authorities of their powers to resolve issues of local importance. The reform should ensure the integrated and sustainable development of municipal territories, create conditions for overcoming the unevenness of their socio-economic development. However, to date, the Russian scientific community has not yet developed an unambiguous understanding of the results of the transformations of the two-level system of the territorial organization of local self-government, because the issues of assessing their social, economic, legal and managerial consequences have not been sufficiently studied, knowledge of which should be used by regional authorities in the future to develop managerial decisions in the process of creating municipal and urban districts. The article analyzes the preliminary results of the administrative-territorial reform of local self-government on the example of the Stavropol Krai, which acts as a pilot region for its implementation. The methodology of this research is based on general scientific methods that combine institutional, economic and sociological approaches to analyze the problems and opportunities for the development of local self-government in Russia. The result of the study confirms the submitted hypothesis that the administrative-territorial reform of local self-government carried out in Stavropol Krai, as of today, has not improved the sustainability of socio-economic development of the region as a whole. Also, the reform has not contributed to equalizing the asymmetry of development of its municipalities, improving the efficiency of municipal officials, and revitalizing the operation of territorial public self-government.

The Strategy for the Large-Scale Development of the Western Macro-region of the PRC is an important national regional economic development strategy to deepen the reform and opening-up policy measures during the period of rapid economic development of the People’s Republic of China. This Strategy was formally put forward in 2000, after which it has passed through such historic stages as studying and formulating domestic policy measures, accelerating infrastructure construction, prioritising key areas, optimising environmental protection and improving people’s quality of life. In more than 20years of putting this national strategy into practice, China’s western macro-region has made significant achievements in increasing the total economy, reorganising the industrial structure, attracting investment, building infrastructure, improving the degree of opening up to the outside world, and improving people’s quality of life and the environment. Applying the regional economic development quality evaluation index system, we can find that the effect of improving the quality of regional economic development in the Western macro-region is very significant. The West is a macro-region of the PRC with vast areas. Due to the geographical factor, the Western macroregion continues to face challenges in development, such as difficulties in industrial transformation and modernisation, weak regional capacity for technological innovation and heavy debt burden. It will take a long time for the macro-region to get rid of external financial support as well as to achieve endogenous economic development. Regional development requires domestic policy support and coordinated development between developed and developing regions. At the same time, building the Western macro-region’s self-reliant development capability as well as the ability to develop independently is the key to ensuring the ultimate success of the Strategy for the Large-Scale Development of the Western Macro-Region of the PRC.

The article reviews the main directions of research into the problems of regional economic policy within the framework of the Siberian scientific school, including the development of the theory of regional economic policy, consistent with the transformation processes in the economy of regions in the environment of global turbulence and geopolitical shifts; identification of objective trends, contradictions and features of regional policy in the context of a new structure of economic interactions of regional systems; theoretical and methodological justification of institutional structures providing the implementation of regional policy amid external challenges and threats; improvement of regional policy adaptation mechanisms given redirection of regions’ foreign economic relations under sanction restrictions.