bluuebunny/crossref_metadata_2025 huggingface dataset:
Invasive Brain–Computer Interfaces: 25 Years of Clinical Trials, Scientific and Practical Issues
Authors: Mokienko Olesya A.
Published: December 2024

A brain-computer interface (BCI) is a system that measures brain activity and converts it in real-time into functionally useful outputs to replace, restore, enhance, supplement, and/or improve the natural outputs of the brain. In invasive BCIs, electrodes are placed intracranially for more accurate and faster data exchange between the brain and external devices. The primary medical objective of these technologies is to compensate for motor or speech function in patients with tetraparesis and anarthria. In recent years, the emergence of new neuroimplants for BCIs and the results demonstrated in clinical trials have led to a notable increase in interest in these systems from the scientific community, investors, and the public. This review compares different types of medical invasive BCIs, analyzes and discusses the achievements and unsolved problems of clinical application of these neurotechnologies, as well as possible consequences and risks of their wider use.
Healthcare-Associated Infections: State of the Problem and Prospects
Authors: Akimkin Vasily G. , Brusina Elena B. , Briko Nikolay I. , Tutelyan Alexey V.
Published: December 2024

Currently, the epidemic process of healthcare-associated infections (HAI’s) has a number of features, including a decrease in the intensity of manifestations of the epidemic process of HAI’s in surgery with a simultaneous increase in the proportion of severe forms of infections with loss of function or organ, a high risk of developing HAI’s in children with low and extremely low body weight, the spread of HAI’s pathogens with high epidemic potential, bacteria multiresistant to antimicrobial drugs, a decrease in the frequency of exogenous infection and an increase in infections associated with the formation of a hospital clone. At the same time, it should be noted that there are clear trends in the development of medical technologies, primarily in surgery, concerning the intensification of surgical treatment methods, a decrease in the aggression of medical technologies, an increase in the use of various implants, as well as organ and tissue transplantations. At the same time, the epidemic process of HAI predominantly involves microorganisms from the group of ESKAPE pathogens, which have the ability to “escape” the biocidal action of antimicrobial drugs and a high epidemic potential, necessary and sufficient for their epidemic spread in the hospital environment. In this regard, a mandatory condition for combating the formation of a “hospital” strain (clone) and the further development of group diseases of patients and employees of a medical organization is the introduction of systemic genetic monitoring of microorganisms circulating in the hospital environment using a risk-oriented approach based on systematically organized epidemiological diagnostics. This approach is determined by the need for timely identification of groups and risk factors, both in the context of individual units and the medical organization as a whole, in order to develop effective preventive and anti-epidemic measures.
'Library' in the Language Consciousness of Modern Students: from a Book Depository to a Cultural and Educational Hub (Based on a Free Associative Experiment)
Authors: ZHOVNIR M. M. , LESHCHENKO T. O.
Published: December 2024

Objective. The purpose of the given paper is to record modern students’ perception and interpretation of the library phenomenon, build associative field of the considered stimulus word, and analyze it in details. Basic options for the traditional and updated contextual compatibility of the lexeme library as an educational center, modern enlightening and cultural hub were presented and described in the article. Methods. In order to achieve the stated goal free associative experiment was conducted. General scientific methods of observation, comparison, generalization, description and systematization, as well as linguistic methods of linguistic observation and description were also utilized. Results. The results illustrate expansion of the connecting possibilities of the lexeme library and the transformation in its perception by Ukrainian and foreign students. Conclusions. The study proves that the interpretation of the library phenomenon by modern students doesn’t contradict codified meaning of the lexeme under consideration. Library is associated with learning, reading literature, acquiring new knowledge, skills and abilities. At the same time, the concept of the library has been expanded to correlate it with a renewed space for studying, spending free time, holidays, organizing events, and communicating with acquaintances.
Library as a space for inclusivity and dialogue: experience of transforming Polish libraries on the border of centuries
Authors: PETROVA I. O. , HORB YE. S.
Published: December 2024

Objective. The research aims to analyze the transformations that took place in the Polish system of public libraries in the late 1980s – the early 2000s. Methods. Regarding methodology, the authors handle the concept of “the library” as “the meeting-place”, which presents an interpretation of conclusions made by Emmanuel Levinas, one of the classics of the philosophy of dialogue. Results. The results of the research evidence the concentration of efforts exerted by Polish librarians on the creation of pro-community libraries not meeting the community’s informational needs alone but being the hubs of dialogical interaction of various social groups. Conclusions. The conclusions outline the modern Polish libraries’ tending to expand the range of services provided for readers, taking into consideration severe competition among cultural institutions. The authors have proposed several promising strategies for further study of the problem range. These strategies are determined by the necessity of researching the title based on a broader background to the development of the librarianship theory in the countries of Western Europe and North America.
Digital Curation: Opportunities and Challenges for Ukrainian Libraries
Authors: YAROSHENKO T. О. , IAROSHENKO O. I.
Published: December 2024

Objective. Today digital landscape continues to evolve rapidly, presenting libraries with the dual challenge of not only preserving digital content but also curating it. This is particularly pertinent given the needs of open science and open data, which emphasize searchability, accessibility, interoperability, and reuse (FAIR principles). Methods include a critical review of domestic and international publications on digital curation, official documents, and websites of Ukrainian libraries dedicated to open research data. Results. The current challenges necessitate the development of effective library strategies for digital curation and research data management and the enhancement of librarians' relevant skills through library education and lifelong learning. The paper examines key global trends in digital curation and explores the prospects for implementing these practices in Ukrainian libraries, especially in light of the National Open Science Plan and increased access to research data. The study argues that engagement in and leadership of digital curation practices could significantly transform the role, perception, and identity of academic libraries, thereby enhancing their ongoing relevance to research communities. Additionally, it emphasizes the necessity of advancing librarians' skills and competencies in digital curation and considers the complexities of collaborating with scholars in this context. Conclusions. The study's findings highlight the need to comprehensively consider digital curation as a new library function. It also underscores the role of university libraries in coordinating and advocating for these efforts at the institutional level. Additionally, it suggests the introduction of digital curation as a specialization within the library field, with roles such as data librarian (data curator) who could participate in research groups focused on data management.The article also concludes with an agenda for future research.
Scientific Schools of the Kharkiv State Academy of Culture through the Prism of Google Academy Scientometrics
Authors: KOBIELIEV O. M. , KARPENKO O. O.
Published: December 2024

Objective. The article aims to highlight the role and importance of officially recognized scientific schools at the Kharkiv State Academy of Documentary and Information Culture using data from Google Scholar. The research was conducted during July-August 2024. Methods. The study employs scientometric analysis as the main method for determining the current state of science and technology in the field of social communications, alongside methods of analysis and synthesis. The analysis method was used to study the scientific literature on the research topic, the professional development path of the leaders of the scientific schools of the Kharkiv State Academy of Culture, and the terms used in the study. The synthesis method was used to write the conclusions of the research. Results. The results of the analysis of scientometric profiles of the leaders of these scientific schools in Google Scholar are presented. The study also establishes the expediency of using scientometric analysis of profiles in Google Scholar to determine the state and trends in the development of scientific fields and industries. Conclusions. The article demonstrates the potential of analyzing scientometric profiles of researchers in Google Scholar to assess their overall scientific productivity and the nuances of achievements at different stages of research activities in the field of social communications.
Development of Leadership Qualities of the Managerial Staff as a Factor Influencing the Resilience of the University Library in the Crisis
Authors: ODNOVOLYKOVA O. V. , HLAVCHEVA Y. M.
Published: December 2024

Objective. The purpose of the publication is to determine the role of leadership development of the managerial staff in ensuring the management of the university library in the dynamic crisis conditions of long-term martial law. The article analyses the features of resilient organisations that promptly restore controllability and perform work tasks. The leadership qualities, the development of which is expedient in the team in the conditions of crisis changes, are considered. Methods. The conducted analysis covered the scientific publications on the topic of the study. The study used empirical methods to determine the effectiveness of leadership development among library managers. Results. The influence of the state of technical and social components on the resilience of the organisation is considered. Technical components are difficult to influence by the library administration, unlike social ones. That is why the main focus is on the regulation of social components. Based on the practical results of the library's work, the expediency of forming a leadership style to ensure the library's resilience in crisis conditions is substantiated. Conclusions. Thus, we believe that in crisis conditions, the resilience of an organisation can be enhanced by developing the leadership skills of the library management. During the period of uncertain crisis conditions of martial law, these leadership styles normalise the psychological climate in the team and set employees up for results.
New Roles of a Librarian: The Experience of Grinchenko University
Authors: OPRYSHKO T. S.
Published: December 2024

Objective. The article considers the transformation of the roles of librarians in the modern information society: from information providers to educators, which is a sign of the successful process of internationalization of higher education. The object of the research is the new forms of work of librarians on the example of the experience of Borys Grinchenko Kyiv Metropolitan University and the First Summer School for Beginners and Experienced Scientists “Scientific Career at the International Level: Tools for Researchers and the English Language” held in June 2024. Methods. The methods of marketing and monitoring research are described to determine the most popular topics and emotionally attractive names among the target audience. Results. The results and their discussion focus on the fact that the experience of the Grinchenko University Summer School showed the possibility of high-quality training and advanced training of scientists of different levels and fields of knowledge on the basis of the library of the higher education institution. Conclusions. The change in the role of librarians from information providers to educators in the context of internationalization of higher education is inevitable. Moreover, librarians are forced to be one step ahead of the rest of the university's scientists.
Implementation of Open Science Practices: Experience of the Vernadskyi National Library of Ukraine
Authors: SYMONENKO T. V. , ZAYIKA V. M.
Published: December 2024

Objective. The scientific publication aims to analyse the possibilities of integrating library collections into the open science infrastructure and demonstrate the achievements of the Vernadskyi National Library of Ukraine in this direction. Methods. A comprehensive analysis was applied with elements of a systems approach and comparison to achieve the stated goal. Results. The article describes how the Vernadskyi National Library of Ukraine uses modern technologies and tools to create and maintain an open science infrastructure. The library ensures effective search, access, and reuse of scientific data by using the Open Archive Initiative Protocol for Metadata Handling (OAI-PMH) protocol, developing its own repositories, and integrating with international platforms. Conclusions. The Vernadskyi National Library of Ukraine has an ambitious plan to make its treasures of knowledge – electronic resources collections – even more accessible to the global scientific community. Due to the right strategy for integration into the open science infrastructure, these resources have the potential to significantly enrich the global scientific discourse.
Developments of Teaching Library, Information and Digital Archiving Sciences in Jordan: Al-Hussein Bin Talal University as a Case Study
Authors: AL TAWALBEH SERHAN A. , SULEIMAN RAID J. , AHMED MUSTAFA H.
Published: December 2024

Objective. The study sought to examine the progress of teaching library and information science in several Jordanian universities from their establishment till the present (1921–2022). The study aimed to provide a comprehensive analysis of the development and challenges faced by library and information science programs in Jordan, specifically focusing on the Bachelor's and Master’s Degree programs offered by the Department of Library and Information Technology (DLIT) at Al-Hussein Bin Talal University. Methods. The study employed a descriptive and content analysis methodology to examine the initial stages of establishing the first professional program in teaching library and information science in the late 1970s. The analysis focused on developing the newly created master's program in Information Management and Digital Archiving within the Department of Library and Information Technology in the Faculty of Arts at Al-Hussein Bin Talal University. Results. That academic programs of the four universities lack collaboration and synchronization in enhancing their curricula and teaching methodologies. Currently, there is a lack of sufficient, contemporary, and thorough research or study on the significance of this problem within the higher education system. There is a requirement for greater collaboration and organization among faculty members in Jordan's four universities to evaluate the current situation and propose more efficient approaches to improve teaching in libraries, information, documentation, and digital archiving. In the fields of library, information, and digital archiving the sciences in Jordan are always developing and improving. The Department of Library and Information Technology at Al-Hussein Bin Talal University is experiencing notable progress in its programs to align with the era of information technology. Conclusions. The primary objective of every academic program should be to bridge the disparity between the requirements and competencies of library professionals while considering the pertinent and up-to-date advancements in information technology, telecommunications, and digital transformation.
\(\mathcal{I}\)-STATISTICAL CONVERGENCE OF COMPLEX UNCERTAIN SEQUENCES IN MEASURE
Authors: Halder Amit , Debnath Shyamal
Published: December 2024

The main aim of this paper is to present and explore some of properties of the concept of \(\mathcal{I}\)-statistical convergence in measure of complex uncertain sequences. Furthermore, we introduce the concept of \(\mathcal{I}\)-statistical Cauchy sequence in measure and study the relationships between different types of convergencies. We observe that, in complex uncertain space, every \(\mathcal{I}\)-statistically convergent sequence in measure is \(\mathcal{I}\)-statistically Cauchy sequence in measure, but the converse is not necessarily true.
TRAJECTORIES OF DYNAMIC EQUILIBRIUM AND REPLICATOR DYNAMICS IN COORDINATION GAMES
Authors: Krasovskii Nikolay A. , Tarasyev Alexander M.
Published: December 2024

The paper analyzes average integral payoff indices for trajectories of the dynamic equilibrium and replicator dynamics in bimatrix coordination games. In such games, players receive large payoffs when choosing the same type of behavior. A special feature of a \(2\times2\) coordination game is the presence of three static Nash equilibria. In the dynamic formulation, the trajectories of coordination games are estimated by the average integral payoffs for a wide range of models arising in economics and biology. In optimal control problems and dynamic games, average integral payoffs are used to synthesize guaranteed strategies, which are involved, among other things, in the constructions of the dynamic Nash equilibrium. In addition, average integral payoffs are a natural tool for assessing the quality of trajectories of replicator dynamics. In the paper, we compare values of average integral indices for trajectories of replicator dynamics and trajectories generated by guaranteed strategies in constructing the dynamic Nash equilibrium. An analysis is provided for trajectories of mixed dynamics when the first player plays a guaranteed strategy, and the behavior of replicator dynamics guides the second player.
ON THE MODULAR SEQUENCE SPACES GENERATED BY THE CESÀRO MEAN
Authors: Singh Sukhdev , Malik Toseef Ahmed
Published: December 2024

In this paper, the seminormed Ces\`aro difference sequence space  \( \ell(\mathcal{F}_j, q, g, r, \mu, \Delta_{({s})}^{t}, \mathcal{C})\) is defined by using the  generalized Orlicz function. Some algebraic and topological properties of the space \(\ell(\mathcal{F}_j, q, g, r, \mu, \Delta_{({s})}^{t}, \mathcal{C}) \) are investigated. Various inclusion relations for this sequence space are also studied.
PROPERTIES OF SOLUTIONS IN THE DUBINS CAR CONTROL PROBLEM
Authors: Zimovets Artem A.
Published: December 2024

TThis paper addresses the time-optimal control problem of the Dubins car, which is closely related to the problem of constructing the shortest curve with bounded curvature between two points in a plane. This connection allows researchers to apply both geometric methods and control theory techniques during their investigations. It is established that the time-optimal control for the Dubins car is a piecewise constant function with no more than two switchings. This characteristic enables the categorization of all such controls into several types, facilitating the examination of the solutions to the control problem for each type individually. The paper derives explicit formulas for determining the switching times of the control signal. In each case, necessary and sufficient conditions for the existence of solutions are obtained. For certain control types, the uniqueness of optimal solutions is established. Additionally, the dependence of the movement time on the initial and terminal conditions is studied.
St Mesrop Mashtots: Origins of Image and Name
Authors:   Institute of Archaeology and Ethnography, National Academy of Sciences of the Republic of Armenia, Petrosyan Armen Ye.
Published: December 2024

The article examines the emergence and development of the image of St Mesrop Mashtots, creator of the Armenian alphabet, in the church tradition and folklore of Armenia, where his work was considered a divine miracle. The correspondence of his image with the erazac‘oyc‘ erazahan “dreamdisplaying (and) dream-interpreting” god Tir, the scribe of the supreme god Aramazd, is revealed. The juxtaposition of Christian images with ancient deities was, first of all, based on the correspondence of their functions, and there were circumstances that strengthened this idea. Thus, Mashtots served at the royal court as a scribe-secretary (as Tir was the scribe of the king of the gods); the miraculous vision of Mashtots, in which he saw a right hand writing Armenian letters on a stone, is obviously comparable to a dream. The dreams for the Armenians of the 5th century, who were not yet completely cut off from the pagan religion, had to be sent by the dream-displaying god Tir. The god passed the torch to his successor Christian saint. In light of this interpretation, it seems most likely that the name Mashtots is connected with the consonant appellative maštoc‘ ‘scraper, instrument for scraping off hair/fur of animals’ (from the root mašt- ‘scrape, rip off ’ suffixed with -oc’). In ancient languages, the writing is associated with scraping/scratching in connection with this method of writing on wax, clay and hard materials (cf. Gr. γράφω ‘scrape, write,’ γραμματεύς ‘scribe, secretary,’ Lat. scribere ‘scrape, write,’ scriba ‘scribe, secretary’). The word maštoc‘ in ancient times would mean ‘instrument for scraping/scratching/writing,’ and later, ‘scribe,’ which became the epithet of Mesrop, the heir of the scribe god.
Personal Name as a Marker of a New Semiotic System: Inter-Slavic Parallels (from the National Revival of the 19th c. to Modern Neo-Paganism)
Authors:   Institute for Slavic Studies of the Russian Academy of Sciences, Polyakov Dmitry K.
Published: December 2024

This article examines naming practices in three different types of situations: during the Czech and Slovak National Revival of the first half of the 19th century, in Russia and the USSR in the 1920s, and in contemporary neo-pagan communities of various Slavic countries. Despite the differences in historical and cultural context, these situations are typologically comparable. Each of them involves the construction of a new sign system, in which new anthroponyms play a key role, along with other linguistic and extra-linguistic phenomena. In all three situations there was an anthroponymic boom, a mass creation of new personal names (neo-anthroponyms) that would be used by the bearer of the new code. The source of motivation for name-making in the National Revival and neo-paganism is the traditional, even archaic set of Slavic patterns, since “Slavicness” is seen as the highest value (cf. the Czech 1830s “patriotic names” Pravoslav, Rodomil, Dobromila, etc., or the neo-pagan names Pravdomir, Budislav, Vitoslav, etc.). Anthroponymic practices of the early Soviet Union, on the contrary, focused primarily on other patterns, such as abbreviation (Kim, Marklen, Vilena, etc.), whaile some new personal names were also created following the traditional “Slavic” patterns (Krasnoslav, Novomir). The use of this word-formational pattern in different cultural situations indicates its continuity and great pragmatic potential.
The Etymological Origin of Slovenian Geographical Names with the Morpheme -ov-/-ev-
Authors:   University of Ljubljana, Šekli Matej
Published: December 2024

Bringing into the analysis the geographical names with the morpheme -ov-/-ev- in Slovenian (e.g. Volovica, Rakovica, Bukovica, Brezovica, etc.), the article aims to account for the origin of the morpheme -ov-/-ev- in these type of proper names. The Proto-Slavic suffi x *-ov-/-ev- initially arose within Proto-Slavic u- and ū-stem nouns, and their derivatives. Due to formal and semantic analogy, the suffix in question started to spread from this original position to other masculine and feminine nouns, especially to Proto-Slavic o- and ā-stems, with adjectives in *-ov-ъ playing the decisive role. In terms of semantics, in the analysed names, the morpheme -ov-/-ev- is present in the continuations of those Proto-Slavic u- and ū-stem nouns and those Proto-Slavic o- and ā-stems that belong to semantic fields typical of the u- and ū-stems, i.e. plants and/or parts of plants, geomorphological terminology, animal species etc. The author shows that the studied Slovenian toponyms display the following etymological and derivational formations: 1) adjectives in *-ovъ (e.g. Vrhovo, Bukovo, Brezovo); 2) nomina attributiva, derived from adjectives in *-ov-ъ with the suffixes *-ьcь, *-ikъ, *-ica, *-ъkъ, *-ъka (e.g. Vrhovec, Bukovec, Brezovec), as well as concretised nomina qualitatis in *-ina of the same derivational type (e.g. Bukovina); 3) nomina collectiva, originally derived from the stem in *-ov- with the suffix *-ьje (e.g. Vrhovje, Bukovje); 4) nomina originis with the suffix *-jane: *-ov-jane > *-ovĺane ≥ Sln. -ovlje (e.g. Vrhovlje, Bukovlje); 5) extended adjectives in *-ov-ьnъ, *-ov-ьskъ, *-ov-ьjь (e.g. Cerkovni vrh, Brezovski potok, Volovja reber) and their subsequent derivatives (e.g. Bukovnik, Brezovnik).
Book Review: Language, Mind, and Value, by Severin Schroeder
Authors: Sætre Martin Gullvåg
Published: December 2024

Review of Severin Schroeder, Language, Mind, and Value: Essays on Wittgenstein. London: Anthem Press.
As áreas econômicas-chave segundo Ji Chaoding
Authors: Dabat Christine
Published: December 2024

O eurocentrismo em história constitui um empecilho para vislumbrar o passado, portanto o futuro, de muitas regiões do mundo. Grandes intelectuais e militantes marxistas propuseram uma leitura original da história de seus países, como Caio Prado Jr no Brasil e Ji Chaoding na China. Sua obra-mor Áreas Econômicas-chave na História Chinesa tais como Aparecem no Desenvolvimento de Obras Públicas para o Controle da Água (1936) ofereceu uma solução discreta à posição oficial do Comintern - o ‘modo de produção feudal’ - com implicações práticas no projeto revolucionário em termos de alianças de classes. Numa época muito difícil para seu país, o economista apresentou este estudo detalhado da história econômica da China até 1842. Propôs o conceito de zonas econômicas-chave, valorizando assim a riqueza e sofisticação da organização da sociedade clássica chinesa em questões de gestão da coisa pública, inclusive no campo, frente a desafios ambientais consideráveis. Esta preocupação ecoa debates no movimento comunista internacional e, até hoje, na academia.
La historiografía China, ejemplo de una evolución endógena impactada por Occidente
Authors: Ramírez Ruiz Raul
Published: December 2024

La historiografía china se vino desarrollando al margen de la occidental. Fruto de una civilización propia se construyó sobre unos presupuestos y unas metodologías distintas. El impacto de Occidente sobre China en el siglo XIX, no pudo dejar de influir en ella. Vista la superioridad técnica de Occidente los intelectuales chinos intentaron adaptar su forma de hacer historia a la de los foráneos. En este artículo, partiendo de las propias dudas sobre dicho proceso que hoy día muestran los académicos chinos, pretendemos hacer un repaso a la evolución de la historiografía china desde los primeros intentos de reforma hasta los cambios introducidos por el marxismo y su adaptación a la China de la Reforma y Apertura.
Mitos de origen en la historiografía europea
Authors: Esparza Daniel
Published: December 2024

Los mitos de origen conforman la base de una identidad. Este artículo en perspectiva histórica proporciona una amplia visión de las dinámicas sobre cómo se construyen los entramados de una identidad colectiva a través de los mitos de origen, un tema todavía poco explorado y desarrollado en los estudios sobre construcciones identitarias. Este artículo explica por qué unos mitos de origen tienen éxito y se integran en las sociedades, y por qué otros se quedan en el limitado campo de los eruditos, y se acaban extinguiendo. Se estudian las características esenciales de tres mitos europeos: uno checo (Praotec Čech), y dos españoles (Hispalo y Túbal), a través de fuentes historiográficas desde el medioevo hasta el siglo XIX.
As bases da episteme nacional da mestiçagem
Authors: Mariz Silviana
Published: December 2024

No presente texto, abordamos a mestiçagem como episteme, fundamento conceitual construído pela intelectualidade brasileira e chave-mestra explicativa da formação do país como Estado e nação no século XIX. A partir da produção intelectual de Joaquim Nabuco, Sílvio Romero e Nina Rodrigues, representantes da “geração de 1870”, analisamos a complexidade dos debates e as ambiguidades presentes no processo de construção de teses que buscaram na “raça” as explicações para os problemas de constituição da nação e do “povo” brasileiro; em seguida refletimos sobre como, a partir desse processo, originou-se a tradição de afirmação e celebração da mestiçagem como negação da racialização e da etnização do elemento nacional.
Satisfiability Modulo User Propagators
Authors: Fazekas Katalin , Niemetz Aina , Preiner Mathias , Kirchweger Markus , Szeider Stefan , Biere Armin
Published: December 2024

Modern SAT solvers are often integrated as sub-reasoning engines into more complex tools to address problems beyond the Boolean satisfiability problem. Consider, for example, solvers for Satisfiability Modulo Theories (SMT), combinatorial optimization, model enumeration, and model counting. There, the SAT solver can often provide relevant information beyond the satisfiability answer and the domain knowledge of the embedding system, such as symmetry properties or theory axioms, may benefit the CDCL search. However, this knowledge can often not be efficiently represented in clausal form.
This paper proposes a general interface to inspect and influence the internal behaviour of CDCL SAT solvers. The aim is to capture the essential functionalities that simplify and improve use cases requiring a more fine-grained interaction with the SAT solver than provided via the standard IPASIR interface. For our experiments, the state-of-the-art SAT solver CaDiCaL is extended with the proposed interface and evaluated on two representative use cases: enumerating graphs within the SAT modulo Symmetries framework (SMS), and as the main CDCL(T) SAT engine of the SMT solver cvc5.
6G autonomous radio access network empowered by artificial intelligence and network digital twin
Authors: Liu Guangyi , Deng Juan , Zhu Yanhong , Li Na , Han Boxiao , Wang Shoufeng , Rui Hua , Wang Jingyu , Zhang Jianhua , Cui Ying , Cui Yingping , Yang Yang , Zhang Yan , Wang Jiangzhou , Ouyang Ye , Ye Xiaozhou , Chen Tao , Li Rongpeng , Zhu Yongdong , Zhang Yuanyuan , Yang Li , Bian Sen , Sun Wanfei , Zheng Qingbi , Tong Zhou , Zhang Huimin , Shao Zecai , Wu Jiajun , Kang Mancong
Published: December 2024

The sixth-generation (6G) mobile network implements the social vision of digital twins and ubiquitous intelligence. Contrary to the fifth-generation (5G) mobile network that focuses only on communications, 6G mobile networks must natively support new capabilities such as sensing, computing, artificial intelligence (AI), big data, and security while facilitating Everything as a Service. Although 5G mobile network deployment has demonstrated that network automation and intelligence can simplify network operation and maintenance (O&M), the addition of external functionalities has resulted in low service efficiency and high operational costs. In this study, a technology framework for a 6G autonomous radio access network (RAN) is proposed to achieve a high-level network autonomy that embraces the design of native cloud, native AI, and network digital twin (NDT). First, a service-based architecture is proposed to re-architect the protocol stack of RAN, which flexibly orchestrates the services and functions on demand as well as customizes them into cloud-native services. Second, a native AI framework is structured to provide AI support for the diverse use cases of network O&M by orchestrating communications, AI models, data, and computing power demanded by AI use cases. Third, a digital twin network is developed as a virtual environment for the training, pre-validation, and tuning of AI algorithms and neural networks, avoiding possible unexpected losses of the network O&M caused by AI applications. The combination of native AI and NDT can facilitate network autonomy by building closed-loop management and optimization for RAN.
Statistical Soft Wijsman Convergence
Authors: Bayram Erdal
Published: December 2024

The concept of convergence is a fundamental tool for building or understanding a mathematical structure. In particular, many applied areas of mathematics require the analysis of sets or set-based approximations. A notable example is Wijsman convergence, a type of set convergence defined as the distance from a point to a set as determined by a metric function. Another important concept in our study is soft set theory, which generalizes classical set theory and provides an effective approach to addressing uncertainties in a parametric manner. Building on this foundation, we introduce the concepts of statistical and lacunary statistical convergence in the sense of Wijsman for sequences of closed sets within the framework of soft metric spaces. We establish fundamental properties associated with these types of convergence and explore their interrelationships, resulting in several inclusion results. Furthermore, we utilize a generalized version of the natural density function, referred to as the ϕ-weighted density function, to strengthen our findings.
On the viability of stored waste from processing sulfide ores during the early stages of soil formation
Authors:   Institute of Soil Science and Agrochemistry SB RAS, Artamonova Valentina S. , Bortnikova Svetlana B. ,   Trofimuk Institute of Petroleum Geology and Geodesy
Published: December 2024

The article considers the viability of man-made waste from long-term tailings and bulk waste from the enrichment of gold-bearing ores in the early stages of soil formation for oats and nitrogen-fixing microorganisms, in order to justify their use in environmentally safe surface conservation. It has been established that many metals and metalloids are present in mobile form in soil-like environments, forming secondary sulfates, the main of which is gypsum. New data on the translocation of chemical elements in the roots and sprouts of oats, on the development of colonizing photo- and heterotrophic microorganisms in technogenic conditions are presented. It is reported that habitats with waste matter turned out to be the most viable for plants and microorganisms at neutral acidity values, the dry weight of seedlings in these samples was significantly higher than against the background of acidic ones. The facts of fossilization of vital cyanobacteria and algae have been established using electron microscopy. The information obtained can be used to characterize primary soil formation and modern mechanisms of biogenic concentration of metals in conditions of technogenesis, taken into account in the justification and development of nature-like technologies for the environmentally safe conservation of sulfide-containing waste from ore agglomeration.
The factors of methane concentrations and emission fluxes formation analysis in water reservoirs
Authors:   Russian Scientific Research Institute for Integrated Use and Protection of Water Resources, Gar’kusha Dmitry N. ,   Southern Federal University, Fedorov Yury A. ,   Russian Scientific Research Institute for Integrated Use and Protection of Water Resources,   Southern Federal University, Kosolapov Alexey E. ,   Russian Scientific Research Institute for Integrated Use and Protection of Water Resources, Usova Elena V. ,   Russian Scientific Research Institute for Integrated Use and Protection of Water Resources, Anpilova Evgenia L. ,   Russian Scientific Research Institute for Integrated Use and Protection of Water Resources
Published: December 2024

The article analyzes and summarizes the results of published works aimed at establishing the influence of various natural and anthropogenic factors and processes on the formation, concentration and oxidation of methane in water and sediments, as well as its emission in the "sediments – water – atmosphere" system. It has been established that the variability of concentrations and specific fluxes of methane in reservoirs is associated with the variability of hydrological and morphological features that determine the intensity of production and destruction processes, the nature of mechanical migration of organic and mineral matter and the distribution of lithological types of bottom sediments in different parts of the reservoir. Wind activity and the intake of carbon, nitrogen and phosphorus compounds from the surface of the catchment area (including from anthropogenic sources) and as a result of decomposition of organic matter of soils and vegetation flooded during reservoir filling have a significant impact on the formation of methane concentrations and fluxes. It is shown that when assessing methane emissions into the atmosphere for each reservoir, it is necessary to take into account the peculiarity of the combined influence of natural and anthropogenic factors and processes.
Transformation of biogeocenoses components by species of Reynoutria Houtt. on the example of Moscow agglomeration
Authors:   Lomonosov Moscow State University, Kadetov Nikita G. , Shamonova Maria A. ,   Lomonosov Moscow State University
Published: December 2024

Based on the analysis of original field materials, the direct mechanisms of biogeocenosis components transformation by one of the most aggressive invasive species - representatives of the genus Reynoutria Houtt. - have been studied. The study was conducted within the boundaries of the Moscow agglomeration, where the problem of biological invasions is very acute. Of particular concern are species of the genus Reynoutria, which are more common in urban landscapes than in rural areas, and at the same time can damage the foundations of buildings and communications. It has been shown that with long-term preservation of Reynoutria populations, complete degradation of the original phytocenoses with the destruction of their composition and structure is possible. A large number of roots allows Reynoutria to retain smaller soil particles and thereby change the physical properties of soils. Soil mineralization in places where rhinenutria grows drops by 1,3-2 times compared to control points; surface soil horizons become poorer and are susceptible to salinity. A tendency towards acidification of soils by Reynoutria has been noted. Such a significant transformation of the surface soil horizons indicates the ineffectiveness of mechanical methods of combating Reynoutria, as well as the complexity of land reclamation after removal of the species. The organization of measures aimed at limiting the spread of plants of the genus in the territory of central European Russia is becoming essential.
Analysis of ozone-depleting substances reporting in Russian regions for 2018-2024
Authors:   Applied Ecology, Ural Environmental Research Institute, Racheva Nadezhda L. ,   Perm State University, Belenko Maxim S. ,   Perm State University
Published: December 2024

Depletion of the ozone layer of the atmosphere is one of the global environmental problems, to address which the Montreal Protocol on Substances that Deplete the Ozone Layer was adopted in 1987. The Montreal Protocol calls for a phase-out of the use of substances that deplete the ozone layer. To implement the requirements of the Montreal Protocol, state registration of the circulation of ozone-depleting substances has been organized on the territory of the Russian Federation. The procedure for state accounting of the circulation of ozone-depleting substances and the forms of annual reporting are established by the Russian Government. In this study, for the period 2018-2022 analyzed annual reports on the management of ozone-depleting substances provided by legal entities and individual entrepreneurs to the Russian Ministry of Natural Resources and assessed the dynamics of reporting provided by the Russian regions. It was revealed that the share of the Russian regions, organizations from which do not submit reports on the management of ozone-depleting substances to the Russian Ministry of Natural Resources is on average 36%, despite the fact that the management of ozone-depleting substances in these regions existed. It was established that over the course of five years, more than 50 organizations submitted reports on the management of ozone-depleting substances in just a few the Russian regions. Basically, organizations in the Russian regions either do not report at all, or report, but in small numbers. Based on the results of the work, we can conclude that currently the reporting of legal entities and individual entrepreneurs on the handling of ozone-depleting substances is of a formal nature and does not reflect the real picture of the volume of circulation of ozone-depleting substances in Russia, and therefore state accounting of the circulation of ozone-depleting substances requires improvement.
ENGINEERING-GEOLOGICAL ASSESSMENT OF THE RESULTS OF GEOPHYSICAL RESEARCH FOR SOIL CONSTRUCTION MATERIALS SURVEYING
Authors:   Perm State University, Alvanian K. A. ,   Perm National Research Polytechnic University, Philimonchikov A. A. ,   Perm State University, Tatarkin A. V. ,   Perm State University, Krasilnikov P. A. ,   Perm State University, Batrakova G. M. ,   Perm National Research Polytechnic University, Ashikhmin S. G. ,   Perm National Research Polytechnic University
Published: December 2024

The article provides an assessment of the results of geophysical research using geological exploration methods when searching for deposits of building materials. The staged nature of research is outlined, based on the use of direct geological methods, electrometry geophysical methods, laboratory study, and modern approaches to threedimensional modeling, which makes it possible to increase the efficiency of geological exploration work. The approbation of the described approach is presented. Using this methodology a number of construction materials deposits were discovered in difficult engineering-geological conditions, and the concept of rational subsoil use was implemented during the development of a number of deposits in Western Siberia.
Cross-Correlation Function in the Strike-Slips Mapping by Potential Fields Data (on Example of the Kolbeinsey Ridge Transform Faults)
Authors:   St. Petersburg Mining University named after Catherine II, Senchina N. P. , Asoskov A. E. ,   Russian Geological Research Institute named after A.P. Karpinskiy, Matykina D. A. ,   St. Petersburg Mining University named after Catherine II
Published: December 2024

The paper presents the results of the algorithm testing for estimating the strike-slip amplitude on a simulated (artificially synthesized) field and on a real magnetic field near the Kolbeinsi Ridge. The algorithm is based on the calculation of the cross-correlation function in sliding windows within the study area, and allows quantifying the amplitude of the strike-slip fault and determining its left lateral or right lateral kinematics. The approach is implemented in the form of the author's program WindowXCorr. Testing on the model and on real data shows the performance of the algorithm and the presence of negative elements in the calculation results, which allows talking about the potential of this approach, and the need to refine it taking into account the complexity and polygenic nature of real geophysical data.
Geological and Industrial Types of Deposits. The Chromespinel Type in Alpinotype Hyperbasites
Authors:   Perm State University, Iblaminov R. G.
Published: December 2024

The geological and industrial type chrome-spinel in alpine-type hyperbasites is an important global source of chrome ores. The reasons for the regional geological position of ore-bearing hyperbasites on the northern and southern flanks of the Urals, the structure of the Ray-Izskiy and Kempirsayskiy ore fields, the patterns of the structure of ore deposits on the example of specific deposits, the zoning of ore bodies, and their mineralogical composition are considered. The restytic hypothesis of ore formation has been clarified.
Elimination of ambiguity in estimates of the arrival directions of broadband signals in multisignal bearing mode
Authors:   Saint Petersburg Electrotechnical University "LETI", Russian Federation, Shevchenko Majja Е. , Malyshev Victor N. ,   Saint Petersburg Electrotechnical University "LETI", Russian Federation, Sokolov Sergey S. ,   Saint Petersburg Electrotechnical University "LETI", Russian Federation, Osetrov Alexander V. ,   Saint Petersburg Electrotechnical University "LETI", Russian Federation, Cherepanov Andrey S. ,   Peter the Great St. Petersburg Polytechnic University, Russian Federation
Published: December 2024

Direction finding of wideband signals overlapping in the spectral domain by a fixed antenna array requires the correction of steering vector ambiguity and phase differences corresponding to different spectral components. The spectral components of the same signal correspond to unequal values of the distance in wavelengths between the antennas in the array. A method of steering vector ambiguity correction suitable for subspace methods such as MUSIC and ESPRIT is proposed. The ambiguity in the presence of multiple signals is resolved by correcting phase diffe-rences between antennas for each spectral component, with preliminary correlation of the ambiguous steering vector with unambiguous ones obtained for the low-frequency range of the spectrum using maximum correlation. The corrected steering vector for each spectral component is obtained from the adjusted phase differences between the antennas and is used in the direction finding correlation algorithm to obtain unambiguous estimates of the directions of arrival of the wideband signals. Simulation results for direction finding of five sound wideband signals using a square internally filled antenna array consisting of 16 antennas, based on ESPRIT with the proposed method of ambiguity correction, are presented. The proposed method for correcting the steering vector ambiguity caused by different spectral components of wideband signals in the antenna array allows estimation of their directions of arrival, as is done for narrowband radio signals.
Features of radiometric quantities synthetic images formation in the IR region of the spectrum
Authors:   Motiv NT LLC, Novosibirsk, Russian Federation, Zverev Alexey V. , Ipatov Dmitrij E. ,   Motiv NT LLC, Novosibirsk, Russian Federation
Published: December 2024

Physically correct synthetic images of 3D scenes in a given wavelength range are of great importance in solving some applied problems. Such data generation is based on a physical interactions modelling, including electromagnetic radiation propagation in a scene space. This paper presents the results of a ray tracing mechanism development in a 3D scene modeling software package. An algorithm for calculation radiative heat transfer that allows accounting a radiation from multiple bodies in the scene is proposed. In order to be executed on graphical processors it is implemented in form of shader programs. Each emitted ray, which simulates the propagation of an electromagnetic wave, undergoes no more than two interactions with bodies and makes an addition to an observed area radiation in a number of photons given wavelengths range and solid angle. To evaluate the algorithm a number of model scenes were proposed, on which comparative study was carried out in case of infrared region modeling. As results show, taking into account the mechanisms of radiative heat transfer allow for qualitative improvement of the resulting images and makes a significant contribution to the background signal.