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The article examines issues characterizing the demographic situation and socio-economic development of territories, their mutual influence. A review of scientific publications on the stated issues was conducted. The object of the study was the Russian Federation and the South Siberian macroregion (Altai Republic, Altai Krai, Kemerovo, Novosibirsk, Omsk and Tomsk regions), municipalities of the Novosibirsk region. The information basis of the work was open data of the Federal State Statistics Service, territorial bodies of the FSSS, information posted on the websites of the governing bodies of the Novosibirsk region and the mayor’s office of the city of Novosibirsk, the author’s assessments of the discussed problems and processes. Conclusions and recommendations are made.

The assessment of the state of the labor market is traditionally considered from the standpoint of ensuring the economic security of the state. Current trends in the Russian labor market, characterized by a significantly increased demand for personnel in all sectors of the economy, limited labor supply, and record-low unemployment, are unique on the one hand and pose a challenge to the development of the economy as a whole on the other. The article presents the dynamics of the main indicators of the labor market and the factors that caused them, the structural deformation of the market in the context of the digital transformation of the economy, the prospects for the impact of the demographic situation and the underutilization of labor on the state of the labor market. This allowed us to formulate certain areas of influence of the state policy of regulating the labor market.

The article is devoted to the role of science cities in the innovative and socio-economic development of Russia, with special attention paid to the science city of Koltsovo (Novosibirsk region). Its scientific and production complex and innovative infrastructure are considered. The main indicators of the socio-economic development of the science city of Koltsovo are analyzed in comparison with similar indicators of the Novosibirsk region. Particular attention is paid to the budget of Koltsovo, the dynamics of its income and expenses. The article emphasizes the importance of science cities as key elements of the national innovation system.

The article proposes the concept of trans-regional centers of economic growth as key elements of Russia’s spatial development. The main factors in the formation of these centers are systematized and analyzed: natural-geographical, historical-cultural, sociodemographic, economic, institutional, and technological. The evolution of the significance of factors in modern conditions is substantiated: the decreasing role of resource availability with the increasing importance of human capital, innovation potential, and the quality of the institutional environment. The research results are of interest in the context of implementing the Strategy for Spatial Development of the Russian Federation until 2030.

The article defines the age limits of the “youth” category based on the specifics of crime accounting in criminal statistics. The portal of legal statistics and the website of the Prosecutor General’s Office of Russia are used as the main sources of information. The dynamics of the crime rate with the allocation of high, medium and low levels in the Novosibirsk region and in Russia for 2008-2024 is analyzed. The adopted state regulations and regional and municipal programs aimed at reducing youth crime are reflected. A regression model of youth crime in the Novosibirsk region with a linear downward trend was built and a forecast was made until 2026. The seasonality in the identification of criminals among minors and students in the Novosibirsk region is demonstrated.

Crypto-primitives of electronic digital signature (EDS) are quite important components in any information security subsystem of national blockchain ecosystems and platforms. Most of the known EDS schemes are based on the assumption of the computational complexity of large number factorization problems (for example, RSA) or discrete logarithm (such as DSA and ECDSA). However, the obtained scientific and technical results in the field of post-quantum cryptology and quantum computing call into question the sufficiency of the known crypto-primitives of EDS. For this reason, the relevance of new, post-quantum EDS schemes based on such sections of mathematics that are capable of ensuring the quantum stability of the mentioned systems to intruder attacks using a quantum computer is growing. This article presents the results of a critical analysis of the known EDS schemes based on lattice theory. The emphasis is on the practical aspects of using these crypto primitives (efficiency, quantum stability, key size, etc.)

The article considers game-theoretic modeling of researchers’ mobility between cities of own country. Two simple game-theoretic models are constructed. The first model characterizes the decision-making process of a researcher regarding the location of his activity by assessing the probability of success of such activity in conditions of individual or group participation, and is an antagonistic (matrix) game. The second model takes into account the interaction of researchers in a group, expressed through comparison of changes in individual and joint knowledge. Different professional and quantitative composition of researchers in cities generates multiple equilibria, characteristic of coordination and anti-coordination games. The problem of choosing the best Nash equilibrium is proposed to be solved using an additional parameter: the degree of possibility of continuing a scientific topic that was conducted in the city of departure. It is revealed that differences in the degree of such possibilities between cities can form the priority of researchers’ movement.

The paper reports on the process of deposit formation for water-in-oil emulsions of paraffinic and highly paraffinic oils of varying water content. The effect of additives based on polyalkylmethacrylates on the quantity and composition of deposits of water-in-oil emulsions was explored. As shown, the inhibiting ability of K-210 additive was increased upon the deposit formation of water-in-oil emulsions compared to the initial oil. Herewith, the efficiency of its foreign analogue, Flexoil additive, was reduced. As determined, the nature of a change in the composition of paraffinic hydrocarbons in emulsion deposits of anhydrous oil systems was the same in the presence of additives. Therefore there remained the same effect of additives in the presence of water in the oil system.

The content and chemical composition of organic oil-soluble constituents (lipids) of the snow cover, peat and water of the Bakchar bog, which is the typical bog for southern taiga (the northeastern spurs of the Great Vasyugan Mire) were explored by gas chromatography-mass spectrometry. As shown, the composition of lipids in waters is exposed to seasonal fluctuations and formed due to compounds generated in a peat deposit and falling with atmospheric precipitation, and also to components of plants. Lipid content is linked to level dynamics of waters, the quantity of fallen atmospheric precipitation, and air temperature. The amount of lipidic components in waters is maximum in the beginning of spring; their composition is almost identical to peat compounds. When water is diluted with melting snow, lipid content is reduced. Herewith, the fraction of the main groups of lipids: n-alkanes, and n-aldehydes, and also cyclic mono- and sesquiterpenoids present in plants of the early growing season in the snow is increased.  An increase in air temperature and a low amount of atmospheric precipitation lead to an increased fraction of lipids produced by water plants and compounds that are a part of conifer resin (dehydroabietic acid and its derivatives) in water. When the amount of rain precipitation is increased, the diversity of composition and lipid content are reduced in water; C₂₅ and C₂₇ n-alkanes, and also carboxylic acids are prevailing in this case. A reduction of the amount of atmospheric precipitation at the end of summer is accompanied by an increase in the content of triterpenoids, steroids, long-chain esters of carboxylic acid, and tocopherol in water. Furthermore, betulin and its derivatives typical for birch, and also saturated oil hopane derivatives fallen to water resulting from carrying out technical works appear at the survey plot. A month later, in September, human activity products are removed from the waters; the content of biological triterpenoids, and among them, α- and β-amyrin derivatives enriched with red bilberry and cranberry is drastically increased.

In the past few years, the number of studies regarding the application of ionic liquids (IL) as alternative solvents to extract value-added compounds from crude oil fractions has been growing. Ionic liquids can be considered as green solvents due to their very low vapor pressure and wide range of applications with unique physical and chemical properties. In petroleum and hydrocarbon industries, various solvents have been used for treating purposes. However, these solvents have their own limitations as environmental and economical issue. These limitations can be overcome by use of ionic liquids. This paper gives a survey on the latest most popular IL, from their applications to their feasible results in refinery and petrochemical streams. Especially the selective treatment of the Azerbaijan’s crude oil fractions by IL was highlighted and achieved practicable and suitable results were indicated.