bluuebunny/crossref_metadata_2025 huggingface dataset:
Countering the Instrumentalization of Migrants as an Element of the External Dimension of EU Immigration Policy
Authors: Voynikov V. V
Published: November 2024

The problem of the instrumentalisation of migrants has a long history, but within the EU it was noticed only after the events on the EU-Belarus border in 2021. The Commission prepared a package of legislative proposals, which, among other things, gives Member States the opportunity to derogate from the current asylum rules. These provisions caused a negative reaction from a number of member states, the expert community and non-governmental organizations. The purpose of this article is to identify the reasons for the legislative implementation of the concept of in-strumentalisation of migrants, to identify the key characteristics of the relevant provisions, as well as their compliance with the current rules of the Common European Asylum System and the international obligations of member states. The author comes to the conclusion that the preparation of proposals in the field of countering the use of immigrants was carried out in conditions where the increased securitisation of migration policy coincided with a significant deterioration in EU relations with Russia and Belarus. For this reason, this proposal is politically motivated. An analysis of the proposed measures suggests that they could lead to unjustified differentiation of asylum seekers solely on the ground that they entered into EU from the territory of certain third country. In addition, the provisions of the proposal will contribute to further legal uncertainty and lower asylum standards. The proposed legislative measures are unlikely to solve the problem of immigration in EU, but can increase tensions in relations with neighboring countries.
EU Energy Crisis and the European Energy Market
Authors: Roginko S. A
Published: November 2024

The article analyses the state of the EU energy market during the energy crisis of 2020-2023 and its development taking into account the climate agenda and the European Union’s self-restrictions on the import of primary fossil energy resources. The article examines the role of the climate agenda in the adoption of measures distorting the energy sector and provoking a full-scale energy crisis. It revealed itself in decrease of the reliability of energy supply, which became hostage of weather conditions due to increasing the share of renewable energy sources in the energy sector. The author scrutinises the main fuel segments of this market, assesses their volatility, and gives a forecast of its development for the period up to 2030-2045; analyses the EU's actions in the context of a shortage of fuel resources, their negative consequences for energy-intensive industries. Trends in rising prices for all types of energy resources, leading to the general deindustrialisation of Europe, provoked by the European energy crisis and the decision of the EU, which abandoned the main supplier of energy resources - Russia, are explored. It is stated that this decision was not provided with alternatives comparable in scope and conditions. Possibilities and prospects for the export of Russian energy resources to EU countries in the context of sanctions are predicted, including the possibility that the goal set by the European Union to abandon Russian fossil fuels by 2027 will not be achieved. It is concluded that the European Union is turning into a region of energy poverty, in which, instead of the declared sustainable energy, European consumers face unstable energy supplies, possibilities of blackouts and significantly increased electricity bills.
Captive swedes and the formation of mathematical cartography in Siberia (1711–1722)
Authors: Borodaev Vadim B. , Kontev Arkady V.
Published: November 2024

After the defeat of Charles XII at Poltava, thousands of soldiers and officers of his army ended up in Russian captivity. Many of them were then exiled beyond the Urals, where they lived from 1711 to 1722. It is the Swedish officers that the beginnings of mathematical cartography of Siberia are associated with. The article analyzes the aspects of the work of the best known Swedish cartographer, Captain Philip Johan Tabbert (Philipp Johann von Strahlenberg) and provides information about other Swedes who engaged in cartography. At the early stage of the formation of mathematical cartography, an important problem was converting Russian linear measures into degrees. Various ratios used by both the Swedish captives and the Russian land surveyors are given. The methodology for longitude coordinates determination was studied based on the analysis of the maps and diary entries, made by Tabbert during D. G. Messerschmidt’s expedition. Indirect evidence of measurements of latitudinal coordinates, carried out by Swedish captives before the arrival of Russian surveyors in Siberia, has been collected. All of this enabled the analysis of mathematical basis of the two manuscript maps made by the Swedes in Siberia. It is concluded that the geographical maps, drawn in the Siberian captivity by Charles XII’s officers, continued the European tradition of mapping Siberia, being a separate stage in this process. What distinguished such maps was that their authors lived in the region they mapped. The Swedish captives became the first cartographers of Siberia, who created mathematically precise geographical maps with a grade grid, rather than hand-drawn, artistic maps. At the same time, Swedish officers’ efforts associated with creating geographical maps of Siberia had no impact on the development of Russian cartography. It was not the Swedes who broke the tradition of cartographic isography but, rather, the Russian graduates of the Maritime Academy who began working in Siberia in 1719.
M. I. Ravich-Shcherbo, the founder of the scientific School of biological chemistry in Kursk
Authors: Nikishina Nina A. , Dolgareva Svetlana A. , Tkachenko Pavel V.
Published: November 2024

The article is devoted to scientific and teaching activities of the Soviet biochemist M. I. Ravich-Shcherbo whose scientific career was largely spent in Kursk. The results of his studies into the development of ways to control malaria, carried out jointly with I. A. Smorodintsev and A. N. Adova during their work at the Tropical Institute of the RSFSR Peopleʼs Commissariat of Public Health (Narkomzdrav) in the 1920s and 1930s, and his research aimed at reducing the incidence of syphilis, conducted at the V. M. Bronner State Institute for Venereal Diseases in the 1930s – 1950s, are analyzed. His contribution to the development of wound healing and radiopaque contrast agents during World War II is also shown. Particular attention is given to the results of the studies into the mechanisms of biosynthesis of antibodies, gamma-globulin metabolism, and the ways to regulate these processes, carried out by Ravich-Shcherbo’s postgraduate and postdoctoral students in the 1950s – 1970s. The article also sheds light on the history of the scientific school of biological chemistry that became established at the Kursk Medical Institute.
“Materials of the School of ‘Mathematical and Navigational Sciences’ under the jurisdiction of the armory chamber” from N. P. Durov’s collection as a historical source
Authors: Kleitman Alexander L.
Published: November 2024

The School of Mathematical and Navigational Sciences, the first specialized technical educational institution in Russia, was founded on the initiative of Peter the Great in Moscow in 1701. Subsequently, the Maritime Academy in St. Petersburg (1715) was set up, based on the School’s Navigators’ Classes. Most of the School’s documents were lost during the fire in the Naval Cadet Corps in 1771. A set of manuscript documents bound together, comprising the Navigation School’s bookkeeping documentation, has been preserved in the personal fonds of N. P. Durov (1831–1879), professor at the Institute of the Corps of Railway Engineers (St. Petersburg) and historian of science and technology, deposited at the Russian State Library’s Manuscript Department. This manuscript has so far remained unpublished and little-known to researchers. Durov was a renowned bibliophile and collector of manuscripts and books. Many unique handwritten materials ended up in his library after the acquisition of a part of the book collection that belonged to a collector and amateur archeographer A. I. Sulakadzev. However, as our research proved, Durov obtained these Navigation School’s manuscript documents from the home library of the writer B. M. Fedorov. After Durovʼs death, these documents were purchased by the Moscow book dealer V. V. Gautier and subsequently acquired from him by the Library of the Moscow Public Museum. This manuscript is an important source on the history of the creation and early years of the Navigation School. It includes petitions to the Tsar from its future students and the documents of both the School and the Armory that contain information about the educational process organization and the first naval cadets’ everyday life.
Current state and prospects for the development of the green economy of Azerbaijan
Authors: Atakishiev Mushvig
Published: November 2024

In recent years, the green economy and sustainable development have become major issues of particular concern to economists. The green economy is considered the most reliable model of sustainable development. The widespread application of the concept of “green” economy from the point of view of improving the standard of living and social well-being of the population is one of the most important tasks of the present and future. In this regard, one of the important issues is the development and implementation of governmental programs containing the concept of a “green” economy. It involves finding the new, environmentally friendly sources of energy to start the economic “engine”. The concept of sustainable development includes the creation of “green” jobs, rational use of natural resources, production of environmentally friendly products, the use of harmless and low-waste fuels, and a sustainable increase in the standard of living and well-being of the population. In the article, the author examines in detail the current situation in the world and in the Republic of Azerbaijan, as well as the efforts made by its government to achieve sustainable development based on a green economy. The main goal of the study is to assess the role of the green economy in sustainable development.
Entrepreneurial university in Russia: a reassembling?
Authors: Chepurenko Alexander , Sutormina Anastasiya
Published: November 2024

The article analyzes the genesis of the entrepreneurial university model and the experience of its Anglo-Saxon version transfer to the Russian institutional environment in 2010–2020: non-organic character of the entrepreneurial function in Russian universities, in the perception of both administrators and the bulk of the academics; closeness of some leading technical universities to external stakeholders (business angels and venturers) due to the secrecy of the research conducted; unwillingness and/or inability of the academics to invest own time and energy in the creation and conduct of business; failure of the administration to take into account the interests of teams of start-upers, which generates disbelief in the possibility of implementing a business project at the university; the focus of the university administration on supporting student entrepreneurship and underestimating or ignoring the need to create conditions for the development of entrepreneurial activity of academic staff. A new approach (“reassembly”) of a poorly working model based on a different understanding of the possibilities and actors of the “triple helix” is proposed, which may be more adequate under the current conditions.
Ethical and Epistemological Status of a Dead Body in the Context of Development of Tissue and Organ Donation
Authors: Popova Olga Vladimirovna
Published: November 2024

In the article, on the example of the development of human organ and tissue donation, the ethical and related epistemological status of a dead body is considered. Important factors in their formation are socio-cultural and religious traditions, worldview prerequisites, as well as family attitudes and ideas about private life. Based on these factors, moral conflicts were considered that arise in the process of developing new liberal forms of organ donation and organ transplantation, based on a resource approach to the dead body and demonstrating the existing tension between understanding the (dead) body as a common good and the idea of the body as a private thing. It is shown that in the process of developing the practice of organ and tissue donation, the ethical and epistemological status of a dead human body is problematized in the existing system of value dichotomies — between commodifiable and non-commodifiable, public and private, autonomous and instrumentalized relationship to the human body.
Person Walking: Walkability as a Factor of Production of Urban Everyday Life
Authors: Sharova Veronika Leont'evna
Published: November 2024

The subject of the article is a walk as a specific practice of a persons daily life in a city, as well as the phenomenon of walkability: the feature of an environment to be suitable for a person to move on foot. The article notes that the term walkability itself is new and is used mainly in the field of Urban Studies. At the same time, the phenomenon itself — a persons walk in the space of the city — was comprehended much earlier in the context of philosophy, social theory and socio-political thought. Based on the work of Walter Benjamin, Michel de Certeau, Guy Debord, it is shown that the origin of the aimless walk is chronologically connected with the Modern era, and in terms of the organization of the habitat, it correlates with a certain stage in the development of cities. The article also analyze a number of political aspects of walkability; in particular, it is noted that the nature of power spatiality in the urban environment largely determines its accessibility / inaccessibility for pedestrians, determines the routes of a person’s movement around the city, marks the boundaries of “places of memory”, and so on. It is concluded that increasing the level and quality of walkability in modern cities is not only expedient from a utilitarian, urban planning point of view, but also politically fair in relation to a person — a resident of these cities.
The Riddle of the “Great Person”. The European Wanderings of Prince Pyotr Alekseevich Golitsyn
Authors: Kara-Murza Alexey Alekseevich
Published: November 2024

The article attempts to solve a riddle that has occupied historians for 250 years. We are talking about the authorship of travel notes by a certain “Great Person” who made a great European voyage in 1697–1699: from Moscow to Holland, then south along the Rhine to Southern Germany; through the Austrian Alps to the states of Italy and further, repeating the return journey from Venice to Amsterdam, through Hamburg and Riga to Moscow. For a long time it was believed that the “Great Person” was the young Russian Tsar Peter Romanov, who went to Europe in those years as part of the Great Embassy. However, the routes of Peter I and the unknown Anonymous person obviously do not coincide, and this prompted historians to take a closer look at other candidates for “Great Person”. In recent years, a mysterious Anonymous Person has been sought among the second-rate participants of the Great Embassy, who for some reason broke away from the parent group. Gradually, the opinion was formed that the “Great Person” is just an “idle traveler”, and his travel notes are nothing more than a “tourist diary”. Based on the study of new materials, the author of this article proves that a personal friend of Tsar Peter, the future famous diplomat and statesman, Prince Peter Alekseevich Golitsyn (1660–1722) traveled around Europe under the name of a “Great Person”.
Anthropological Aspects of Local Cults: Theoretical and Methodological Approaches to Studying Religious Sites of Memory
Authors: Shakhnovich Marianna M.
Published: November 2024

The article deals with theoretical approaches to the analysis of anthropological aspects of religious places of memory associated with the veneration of Christian saints. This form of religious practice is often a kind of refraction of a dogmatically formalized official religious system, passed through the prism of traditional beliefs, sometimes of archaic origin, in which the objects of worship are both officially fixed material objects (icons, sometimes sculptural images of saints or Mother-of-God, worship crosses), and unofficial locally revered shrines, including springs, stones, trees, and even landscapes. The author analyzes essentialist and non-essentialist theories used to interpret local cults of saints associated with the veneration of natural objects: the theory of dual faith (dvoeverie) and “Orthodox animism”, folk religion, lived religion, vernacular religion, material religion. The most successful methodological approach to explain the historical and cultural survival of religious places of memory, according to the author, is the actor-network theory of B. Latour. Being a non-essentialist approach, the actor-network theory does not distinguish between different types of actors: people, natural objects, and supernatural actors. Natural objects create a network between pilgrims and supernatural actors, which manifests itself in direct worship practices, an important element of which are appropriate votive offerings. Natural actors carry out the function of mediation between the worlds, connecting a person with a supernatural actor who is constantly invisibly present in a sacred place, and thus a network is built that has an important psychological significance for believers, thereby determining the social significance of religious places of memory.
About the Coincidence of the Unclear Essence of Time and Human
Authors: Girenok Fyodor I.
Published: November 2024

The article substantiates the idea that human lives in time, and animals live in space. Animals evolve, and human hallucinates, because to hallucinate means, according to the author, to live in time. Analyzing the ideas of Parmenides, the author shows that to live in time means to go beyond what is, to what is not. The principle of the difference between truth and apparent things allows the author to come to the conclusion that intelligence is a product of evolution, and consciousness is the product of an explosion of hallucinations that occurred in the Late Paleolithic era. If the psyche is considered as navigation of the movement of living organisms among things, then consciousness is understood as navigation in the world of images, or, what is the same, as navigation in the picture of the world. It follows that consciousness is not a part of the psyche. In this regard, there is a problem of distinguishing between human, organic and artificial intelligence. To do this, the author introduces the concept of hallucenosis, understanding by it the relationship of objects of thoughts and feelings of a person. Organic intelligence is built into the instinct of living organisms, human intelligence is built into consciousness. Artificial intelligence is mathematical navigation in the world of numbers. Organic intelligence needs biogeocenosis, human intelligence needs hallucenosis. Artificial intelligence does not need either. Organic intelligence is used to navigate the world of sounds, colors and smells. Whereas human intelligence works in the field of forms and time. The obscure essence of human and the obscure essence of time, the author concludes, coincide.
Time in the Works of F.M. Dostoevsky: Ontological and Anthropological Interpretations
Authors: Kholodnova Ksenia N.
Published: November 2024

The article analyzes the problem of time in the following works by F.M. Dostoevsky: the novel “Demons” and the novella “Notes from the Underground”. The main method of the article is anthropological analysis, which will help achieve the purpose of this study and show the connection between man and time. The author suggests moving away from the already familiar interpretation of time in the works of F.M. Dostoevsky, namely, to stop considering time as an ontological category and talk about eschatological and apocalyptic time or even about overcoming it. The study analyzes the views of N.A. Berdyaev, M.M. Bakhtin and V.A. Podoroga on this problem in the works of F.M. Dostoevsky, their shortcomings are revealed and an alternative, anthropological interpretation of time is proposed. It is, in our opinion, that is the closest to the truth in the space of F.M. Dostoevsky’s philosophical anthropology. The scientific novelty of the research lies in the fact that the author for the first time in the scientific literature substantiates the idea that time in the selected works of F.M. Dostoevsky appears only with a person, becomes a property of his conscious life and is not an ontological, but an anthropological category. A person becomes someone who lives in time because he is “chained to himself, looking inside his self” (F.I. Girenok). But at the same time, a person does not live in space, because he does not turn to what is outside of it. The closeness of a person in himself makes him a temporary, not a spatial being, which, in our opinion, was demonstrated by F.M. Dostoevsky.
Between Donating and Alienating: Face Transplants and the Problem of Biomedical Objectification of Human Being
Authors: Patrakova Alina P.
Published: November 2024

The paper addresses some philosophical aspects of face transplantation and starts with a brief overview of more or less successful surgeries in international clinical practice. Related discussions about medical and ethical risks are also brought into the picture. The issue of the ethical and axiological grounds and consequences of face allotransplantation is placed into the context of a broader problem of biomedical objectification. The author suggests understanding the biomedical objectification in that the patient is regarded as a clinical body taken out of the psychosocial context of her/his life, considered redundant for diagnostic and therapeutic tasks. This view finds expression in various practices that alienate the patient’s subjectivity, including the alienation of her/his name, face or body from her/his personality. Within the existent donation practices, two types of biomedical objectification can be outlined, such as instrumentalisation and alienation for protective purposes. In terms of face transplant, objectification as instrumentalisation consists in reducing the face to a collection of tissues and turning it into a biomedical artifact endowed with instrumental value. In this context, the distinction between the notions of “somatic face” (facial structures) and “psychosocial face” (subject identity) is introduced. As for alienation for protective purposes, the recipient who has to adjust to her/his new face is required to detach from the donor’s personality. The author concludes that face transplantation, similar to donation practices in general, may cause the tension between the rhetoric of gift-giving, essential for the development of transplantology, and the logic of alienation inherent in biomedicine.
Ethnocultural and Ethnopsychological Principles of Working with Foreign Students
Authors: Lazutova Natalya M.
Published: November 2024

Ethnocultural and ethnopsychological features of interaction with foreign students require the creation of certain educational technologies and creative trajectories of communication in the learning process. In this case, cognition is based on understanding as a result of cognitive operations, and education is based on “confirmation” of reality as a condition for the formation of a professional’s personality. These are two wings for mastering independent creative flight. The purpose of the work is to demonstrate the principles of information modeling in the educational process with the cooperation of representatives of different ethnic cultures. The teaching of professional disciplines involves, depending on the subject, creative modeling of the structure, the actual algorithm and the compositional solution of effective knowledge transfer. The game principle in such modeling is expressed in the elements of the training that remove linguistic barriers. Each component of such a model is largely correlated with the content of the ethnocultural space and the ethnopsychological field of foreign students at the group and individual levels. The teacher becomes a kind of “guide” not only to the profession, but also to the culture and traditions of the country in which students receive their education. In the classroom, an intellectual atmosphere is created through the disclosure of various cultural codes that manifest themselves in the process of communication and reflect the original perception of reality. The professional worldview is formed as a result of the synthesis of ethnocultural ideas about the world, that is, monocultural concepts are fused into multicultural systems that define the individual author’s handwriting of a professional.
Nostalgia of Sound: The Social and Cultural Phenomenon of the “Soviet Wave” Music Community
Authors: Abramov Roman N. , Voinkov Alexander V.
Published: November 2024

Nostalgia for the late Soviet past takes various forms and is intertwined in complex ways with global trends to look to the past for inspiration in creating new examples of mass culture. New generations of those who were born and raised after the collapse of the Soviet system are being introduced to nostalgic reminiscences. The article analyzes the socio-cultural phenomenon of electronic music Soviet Wave, which combines the stylistics of the late Soviet popular culture and contemporary electronic music. This phenomenon can be understood as post-nostalgia for the late Soviet, since it involves members of the younger generation who know about the Soviet from the stories of their parents and the media. In addition, the “Soviet Wave” is also analyzed as part of the general trend of retromania described by S. Reynolds. Reynolds, where there is an endless reference to the musical styles of the past in the creation of new works. The main concept of the phenomenon of the Soviet Wave is the idea of “ersatz-nostalgia” by A. Appadurai, which suggests the contemporary experience of the past without a corresponding life experience and collective historical memory, but based on the popular patterns of mass culture, in the representations of which the past has already undergone profound transformation. Nostalgia for the late Soviet past takes various forms and is intertwined in complex ways with global trends to look to the past for inspiration in creating new examples of mass culture. The article presents a brief history of the formation and evolution of the musical culture of “Soviet Wave” in the Russian subcultural scene, shows the connection of the aesthetics of this trend with the nostalgic mood of the late Soviet period, reveals the elements of ersatz and techno nostalgia (T. Pinch, D. Reyneke), examines the relationship of this phenomenon with the broader trends in contemporary mass culture in the international context. “The Soviet Wave” is also considered as an element of cultural citizenship formation and transformational museumfication of the Soviet. The article is based on the results of the author’s empirical research, which included interviews with musicians working in the “Soviet Wave” genre.
Diversity of Stomatocysts of Golden Algae (Chrysophyceae) from the Plankton of Reservoirs of the Mountain Forest Zone of South Urals
Authors: Snit’ko L. V. , Snit’ko V. P.
Published: November 2024

According to the data of scanning electron microscopy, in the plankton of the reservoirs, lakes, rivers of the mountain-forest zone of Southern Urals, 33 morphotypes of stomatocysts of Chrysophyceae, 8 of which were found for the first time in Russia, one morphotype was described as new to science. The description of each morphotype is accompanied by a SEM micrography, geographical location, and environmental characteristics. Unornamented stomatocysts with a spherical form are predominant in abundance in plankton. Ornamented stomatocysts with a spherical form are predominant in diversity in plankton. The maximum diversity of stomatocysts is observed in spring and in autumn. The revealed high diversity of stomatocysts indicates a significant diversity of golden algae in the South Ural region.
Effect of Global Warming on the Fish Population Parameters in the Upper Volga Reservoirs
Authors: Gerasimov Yu. V. , Solomatin Yu. I. , Bazarov М. I. , Lаpshin О. М. , Tsvetkov А. I.
Published: November 2024

As a result of global warming, the average annual water temperature has significantly increased in the Upper Volga reservoirs. Warming and the subsequent deterioration of the oxygen regime had a significant effect on most of the fish populations inhabiting temperate waters. This led to changes in the population structure of many fish species. Such phenomena as the disappearance or a sharp decline in the abundance of cold-water species (European smelt, vendace, burbot and pike) in the Rybinsk reservoir coincided with the period of warming. The disappearance of European smelt in the Rybinsk Reservoir and the favorable temperature regime contributed to the appearance and rapid increase in the abundance of the Caspian invader, the Black Sea sprat, which occupied the empty niche of the European smelt and became instead the dominant species in the pelagic zone of the Upper Volga reservoirs. Warming resulted in a decrease in the abundance and the growth rate of burbot and pike. Climate warming had an indirect effect on many species through oxygen deficiency or transformation of the forage base (ruff, zander, perch, roach), which also led to a decrease in abundance and the growth rate.
Temperature Adaptation in the Postembryonic Development of Acanthocephalus tenuirostris (Palaeacanthocephala: Echinorhynchidae)
Authors: Mikhailova E. I.
Published: November 2024

Under experimental conditions, the larval development of a fish parasite, Acanthocephalus tenuirostris was studied. This species is common in the eastern regions of Russia from Primorye Territory to the upper reaches of the Kolyma River. The material for the experiments was collected in different areas of the Magadan region which is located mainly in the subarctic climate zone. In several series of experiments, the infection and maintenance of intermediate hosts, the isopod Asellus hilgendorfii, took place at a constant temperature 15°C. In all cases, no more than 45 days were required for the formation of the final cystacanth stage. At the same time, in the hemocoel of isopods a large number of other larval stages were present simultaneously with cystacants. An additional experiment was conducted for the first 45 days at 15°C and the next 207 days at 4–6°C, showed the possibility of further development of larvae at low temperatures. Based on the comparison with the data available in the literature on the development times of European Acanthocephalus species living in temperate climates, it is concluded that the A. tenuirostris has anadaptation to a cold climate, whichprovides a twofold acceleration of the rate ofits development relative to larval A. lucii in Europe.
SPECIFIED GLOBAL POINCARE–BENDIXSON ANNULUS WITH THE LIMIT CYCLE OF THE RAYLEIGH SYSTEM
Authors: Li Y. , Grin A. A , Kuzmich A. V
Published: November 2024

In the work of A. Grin and K. Schneider [1] two algebraic transversal ovals, which form the Poincare–Bendixson annulus 𝐴(𝜆), are analytically constructed. This annulus contains the unique limit cycle of the Rayleigh equation ¨ 𝑥+𝜆( ˙ 𝑥2/3−1) ˙ 𝑥+𝑥 = 0 for all values of the parameter 𝜆 > 0. In the constructed annulus 𝐴(𝜆) inner boundary consists of zero-level set of the Dulac–Cherkas function and outer boundary represents the diffeomorphic image corresponding boundary of such an annulus for the van der Pol system. In this paper new methods of construction two Dulac–Cherkas functions are worked out. With help of these functions a better inner boundary of the Poincare–Bendixson annulus 𝐴(𝜆) depending on the parameter is found. Also, for the Rayleigh system, a procedure for direct finding a polynomial whose zero-level set contains a transversal oval used as the outer boundary 𝐴(𝜆) is proposed. Then we determine the interval for 𝜆 where the better outer boundary of the annulus is a closed contour, which composed from two arcs of the constructed oval and two arcs of non-closed curves belonging to zerolevel set of one from Dulac–Cherkas functions. Thus, finally the specified global Poincare–Bendixson annulus for the limit cycle of the Rayleigh system is presented.
MULTIDIMENSIONAL AUTONOMOUS DIFFERENTIAL SYSTEM WITH UNIT MEASURE OF INSTABILITY AND MASSIVE PARTICULAR STABILITY
Authors: Bondarev A. A.
Published: November 2024

An example of non-one-dimensional autonomous differential system is constructed, in which, on the one hand, all solutions starting in the exterior of the unit ball, tend to zero with unlimited growth of time, and on the other hand, a relative measure of the initial conditions of those solutions that begin in the ball with a center at the zero and move away from it at a sufficient distance with increasing time, approaches arbitrary close to unity as the radius of the ball tends to zero. The nonlinear system constructed in this work also has a zero linear approximation along the zero solution.
ON THE DETERMINATION OF THE STATIONARY TEMPERATURE IN AN UNLIMITED STRIP
Authors: Alimov Sh. A. , Kudaybergenov A. K
Published: November 2024

The problem of determining the stationary temperature at the upper boundary of the strip under known conditions at the lower boundary is considered. The existence and uniqueness of the solution to this problem are proved.
ON A NON-LOCAL PROBLEM FOR THE GELLERSTEDT EQUATION WITH SINGULAR COEFFICIENTS
Authors: Mirsaburov M. , Turaev R. N
Published: November 2024

The question of the unambiguous solvability of a non-local boundary value problem with conditions of the Bitsadze–Samarskii and Frankl type for a mixed type equation with singular coefficients is investigated.
Study of the Photovoltaic Parameters of Inorganic Solar Cells Based on Cu2O and CuO
Authors: Saenko A. V. , Bilyk G. E. , Smirnov V. A.
Published: November 2024

A theoretical study of the photovoltaic parameters of inorganic solar cells based on ZnO/Cu2O and ZnO/CuO heterojunctions was carried out to improve the energy conversion efficiency. The influence of the thickness, charge carrier concentration and band gap of Cu2O and CuO films, as well as ZnO, on the photovoltaic parameters of solar cells has been studied. The simulation results showed that the efficiency of solar cells is significantly affected by the contact potential difference, the diffusion length of minority charge carriers, the amount of generated photocurrent and the recombination rate. The maximum efficiency of a solar cell based on ZnO/Cu2O was obtained equal to 10,63%, which is achieved with a band gap, thickness and charge carrier concentration in Cu2O equal to 1.9 eV, 5 μm and 1015 cm–3 and band gap, thickness and the concentration of charge carriers in ZnO is equal to 3,4 eV, 20 nm and 1019 cm–3, as well as the displacement of the edges of the conduction bands is 0.8 eV. For a solar cell based on ZnO/CuO, a maximum efficiency of 18.27% was obtained with a band gap, thickness and charge carrier concentration in CuO equal to 1.4 eV, 3 μm and 1017 cm–3, as well as a displacement of the conduction band edges of 0.03 eV. The obtained results of modeling solar cells can be used in the design and manufacture of inexpensive and efficient photovoltaic structures.
The Film «Against all Odds» by Yuri Ilyenko at the Crossroads of Cultures
Authors: Viren Denis Georgievich
Published: November 2024

The article is devoted to the Soviet-Yugoslav (more precisely Ukrainian-Montenegrin) film of 1972, a unique example of a co-production in the socialist era. On the one hand, «Against all odds» develops the artistic method of Ukrainian poetic cinema of the late 1960s with its avant-garde visuality, the leveling of verbal means of expression and the desire for ethnography. On the other hand, the film declared Montenegrin cinematography as potentially separate from others in the SFRY (primarily from the Serbian one). Ilyenko works with a complex, encrypted language, full of metaphors and understatement, thanks to which the work remains open for interpretation in various aspects – both in formal and in content.
Marble-hosted noble spinel deposits from the Luc Yen District (Vietnam): mineral equilibria involving corundum and spinel
Authors: Krivovichev V. G. , Kuksa К. А. , Sokolov P. B. , Gutyryak S. Е.
Published: November 2024

Thermodynamic analysis is carried out for the model systems: (1) Na–Ca–Mg–A1–Si–CO2–H2O and (2) Ca–Mg–A1–Si–CO2–H2O. In each systems the mineral equilibria involving dolomite, calcite, spinel, corundum, pargasite, hydroxylclinohumite, and diaspore are considered. A diagram of the multisystem in coordinates μH2O-μCO2is constructed. Analysis showed a significant influence of chemical potentials of water and carbon dioxide in the mineral-forming medium on stability of corundum and spinel in marbles. The conditions of the spinel formation during metamorphism of protolith consisting of carbonate sediments with evaporites lenses and terrigenous material (smectites, bauxites, etc.), are considered in detail. The conditions of the replacement of spinel by corundum during retrograde metamorphism are determined depending on the mole fraction of CO2 in the fluid and temperature at pressure of 5 kbar.
Powdery midlew is a dangerous disease of spring triticale in the far east
Authors: Aseeva T. A. , Zenkina K. V.
Published: November 2024

The studies were carried out in 2015–2022. in order to determine the degree of damage to collection samples of spring triticale by powdery mildew in the soil and climatic conditions of the Khabarovsk Territory of the Far East. The object of research is 84 samples of various ecological and geographical origins. The weather conditions during the research period were contrasting; with the normal precipitation for April–August being 466 mm, the excess was 16…263 mm; waterlogging contributed to an increase in relative air humidity to 100 %. The soil of the experimental plot is heavy loamy meadow-brown podzolized-gley. The distribution (R) of powdery mildew in triticale crops was high (80…100 %), the intensity of development (P) reached epiphytotic values annually. Collection varieties of spring triticale were distributed according to the intensity of disease development: moderately susceptible (13 samples), susceptible (35 samples), highly susceptible (36 samples). High correlation coefficients were calculated between the amount of precipitation in the booting-earing phase and the degree of infection of plants with powdery mildew (r = 0.861…0.897), and a linear regression equation was compiled that shows the dependence of the intensity of development of the powdery mildew pathogen and the amount of precipitation in the second ten days of June. Thus, spring triticale varieties were identified that have average susceptibility to powdery mildew pathogens (P = 30…40 %): Amore, Saur, Prag 409, Dagvo (Russia), Lana, Lotos (Belarus), Zgurivskiy, Oberig Kharkovskiy (Ukraine), 70 HN 458 (Canada), Je 57 (USA), Anoas 5, MX 51 (Mexico), Tleridal (Switzerland).
Fodder and seed productivity of the bonfire awnless of the selection of Omsk agrarian scientific center
Authors: Puzikov A. N. , Yusova O. A. , Momonov A. Kh. , Dubinin A. V.
Published: November 2024

The study was conducted in 2019–2023 in the Omsk region in order to assess the feed and seed productivity of varieties of bonfire awnless selected of the Omsk Agrarian Scientific Center and the selection of the most promising material from the studied material for further use in breeding work. The material was varieties SibNIISHoz-189 (standard), SibNIISHoz-88, Titan, SibNIISHoz-99, Elbrus and Effect. Three cycles were carried out: summer sowing in 2019, 2020 and 2021, accounting years, respectively, 2020–2021; 2021–2022 and 2022–2023. During the experiments, the yield of green mass and absolutely dry matter, seed productivity were evaluated, biochemical analyses of the green mass of varieties were carried out to determine the content of the mass fraction of protein and fiber. In all years of the research, during the growing season, increased air temperature was noted, exceeding the long-term average data by 1.6…1.8 ºС and a large deficit of precipitation. The GTC values by year were: 2020–0.60; 2021–0.56; 2022–1.02; 2023–0.85, with the optimal –1.13. On average, over 3 cycles of research, a significant excess over the standard was characterized by: in terms of green mass yield – varieties SibNIISKhoz-88 and SibNIISKhoz-99 (9.6 and 7.3 % of st.); in terms of absolutely dry matter yield – SibNIISKhoz-88, SibNIISKhoz-99, Titan and Effect (7.8…11.1 % to st.); in terms of seed yield – SibNIISKhoz-99, Elbrus, Effect and Titan (16.5…22.8 % to st.). The mass fraction of protein in the green mass of the Effect variety, on average, over 3 evaluation cycles significantly exceeded the standard by 0.8 %, while the fiber content was at the standard level.
Influence of grazing intensity on organic carbon deposition in pasture soil
Authors: Boitsova L. V. , Neprimerova S. V.
Published: November 2024

The study was conducted to study the effect of cattle grazing intensity on the deposition of organic carbon (Corg) in pasture soil. The work was carried out in 2010 on soddy-medium podzolic sandy loam soil in the Leningrad region. Three pasture areas were identified according to grazing intensity: weak (section 1), medium (section 2), strong (section 3). Corg and carbon in the clay fraction of the soil (Cclay) were determined according to the method of I. V. Tyurin. The sludge fraction (1 µm) was isolated using sedimentation and centrifugation. X-ray analysis of soil minerals was carried out in samples of the clay fraction of the soil on a DRON-3M diffractometer, Cu Kα tube mode 30 mA, 30 kV, from 3.5 to 75°, goniometer rotation speed 1° per minute. The soil of site 3 was distinguished by the minimum content of Corg in both periods of the survey (May – 16 C g/kg of soil; July – 27.8 C g/kg). The Corg value in the July samples was 1.3 times less compared to site 2 and 1.2 times less than site 1. Cclay values varied in the range: in May 40.8…108.9 C g/kg fractions, in July 99.7…140.9 C g/kg fraction. The content of Cclay in July samples from site 3 was 1.3 times higher than the content in samples from site 2 and 1.4 times from site 1. The variation in the enrichment coefficient (Esoc) was 1.78…3.50 in May, 2 in July .89…5.07. The highest Esoc was recorded for the soil of site 3 in July; its values exceeded the values in sites 1 and 2 by 1.75 times. The mineral depositing organic matter in the clay fraction of the soil of the site with high grazing intensity was mica with a deficiency of cations (r = 0.90). The increase in grazing intensity led to an increase in the content of Cclay.
Conceptual model of digital nitrogen management in agricultural crops
Authors: Kalichkin V. K. , Maksimovich K. Yu. , Fedorov D. S. , Garafutdinova L. V.
Published: November 2024

The research was aimed at developing a conceptual model of digital nitrogen management in crops. Cognitive analysis of the knowledge structure in this subject area, conceptual modeling of digital nitrogen management in agrophytocenoses using object-oriented approach and Unified Modeling Language (UML) were used. A detailed system of diagrams was created, encompassing class, process, and interaction diagrams. The model is anchored on three abstract objects: class (7 in total), attribute (32), and inter-class relationships (18), which distribute the main concepts, emphasizing the complexity and multifaceted approaches to digital nitrogen management. The central class is «Agrophytocenosis», which directly interacts with 5 classes and indirectly with 1 class. Attributes are integral to the classes and reflect their specific characteristics. To depict the interaction between the classes and their attributes, four types of relationships are employed in the model: «dependency», «association», «aggregation», and «inner class». In the process diagram of the digital nitrogen management system, two primary subsystems are highlighted: the analysis and planning subsystem and the adjustment subsystem, as well as tools and sources for data acquisition and processing. A distinctive feature of the developed conceptual model is the application of the temporality principle, integrating static and dynamic processes in the digital nitrogen management system within the agrophytocenosis.Subsystems for analysis, planning and adjustment of emerging conditions in the management areas allow ensuring more efficient use of nitrogen fertilizers in crops.The conceptual model is aimed at developing a hardware-software complex for diagnostics of nitrogen nutrition of cultivated plants and management of fertilizer application based on modern digital monitoring and data processing tools.
ІНФОРМАЦІЙНЕ ЗАБЕЗПЕЧЕННЯ РЕФЛЕКСИВНОГО УПРАВЛІННЯ БІЗНЕС-ПРОЦЕСАМИ АГРОПІДПРИЄМСТВ В УМОВАХ ДІДЖИТАЛІЗАЦІЇ
Authors: ГРИНОВЕЦЬ Маркіян , КУЧЕР Леся , КУЧЕР Анатолій
Published: November 2024

This paper provides a theoretical justification for information support for reflexive management of business processes of agricultural enterprises in the context of digitalization based on an integrated approach. The information and analytical needs of agribusiness subjects have been identified and systematized. The data on common software products for collecting, processing, using and storing information by its types that can be used by agricultural enterprises are summarized. The article argues that the effectiveness of information support for reflexive management of business processes of agricultural enterprises in conditions of digitalization largely depends on the systematization, structuring, and diversification of information. These aspects enable agricultural enterprises to adapt to changing business conditions, optimize production processes, efficiently manage resources, and forecast operational outcomes. A comprehensive approach to information support, which includes the integration of various software products, enhances the management efficiency of agricultural enterprises, despite potential challenges related to system compatibility and integration. It is substantiated that agricultural enterprises should focus on the constant updating and modernization of their information systems, adapting them to the latest technologies, market demands, and their own informational needs. Another important aspect is the development of staff skills in utilizing these systems, ensuring their effective application. Finally, strategic planning and data analysis from information systems can become key factors in making well-founded management decisions, increasing the competitiveness and efficiency of the agricultural enterprise.