bluuebunny/crossref_metadata_2025 huggingface dataset:
Abundance of Eurasian lynx in the mountain taiga of the Southern Urals
Authors:   Ilmen State Nature Reserve SU FRC MG UB RAS, Kiseleva Natalia V. , Poddubnaya Nadezhda Ya. ,   Cherepovets State University
Published: October 2024

The study aims to analyze the dynamics of the Eurasian lynx in the mountain taiga, and to search for the factors affecting the numbers of this predator. The study was conducted in the Southern Urals (Russia) from 2008 to 2019. The dynamics of lynx and its main prey numbers Capreolus pygargus, Lepus timidus and L. europaeus, Tetrao urogallus and Bonasa bonasia is based on the data obtained during the complex winter census (CWC). Annual CWCs were performed in Chelyabinsk Oblast with total area of 23.445.5 km². The hypotheses on the influence of snow depth on the number of lynx and the relationship between the dynamics of the predator and prey abundances were tested using regression method. The relationship between the number of lynx and snow depth were obtained using Spearman's coefficient. The number of lynxes varied from 51 to 281 individuals, population density - from 0.09 lynx/100 km2 to 0.48 lynx/100 km2 . The lowest abundances were recorded in 2013 and 2016. In the winters of 2013 and 2016, the snow depth was 2.0-2.5 times greater than on average for long-term observations. However, no significant decrease in the number of the Siberian roe deer was observed in these years, while the number of lynxes decreased by 2 times compared to the previous years. No significant correlation was found between the abundance of lynxes and the Siberian roe deer, r = 0.25 ± 0.3. A negative relationship was found between the amount of precipitation and the winter number of lynxes (r = -0.717 ± 0.22; p ˂ 0.05). The amount of snow cover in the Southern Ural Mountains is an important factor affecting the distribution of ungulates. The snow depth may determine the lynx presence both directly and through the changes in the number of its main prey.
Television Journalism on the Covid 19 Disaster in Indonesia: Conditions, Perceptions and Production Process
Authors:   State Islamic University of Sultan Syarif Kasim Riau, Indonesia, Musfialdy Musfialdy , Hidayat Dadang Rahmat ,   University of Padjadjaran, Indonesia, Karlinah Siti ,   University of Padjadjaran, Indonesia, Wahyudin Uud ,   University of Padjadjaran, Indonesia
Published: October 2024

COVID-19 (Coronavirus Diseases 2019) is a group of viruses from the subfamily Orthocronavirinae in the Coronaviridae family and the order Nidovirales. In Indonesia, dozens of journalists and television editors were exposed to Covid-19, people were stressed, and some even died as a result. The Covid-19 pandemic also caused an increase in people's information needs at that time. This study aims to analyze the conditions, perceptions, and production processes of television journalism during the COVID-19 pandemic in Indonesia, especially on iNews TV, and Metro TV. This research uses an interpretive/subjective paradigm with a constructive approach. This research uses a qualitative case study research methodology. The conclusion of this study is that the condition of Television Journalism during the Covid-19 Pandemic in Indonesia experienced disruption and change. The condition of the television industry experienced a great and deadly disruption. The production process pattern has not changed, but the production process has experienced a very significant change. In the midst of the pros and cons of Covid-19 information, the perception of journalists and television editors remains on data findings in the field that are verified by valid and reliable sources. The positive impact of the Covid-19 pandemic is accelerating the process of convergence of information and communication technology for journalists and television editors. In addition, a journalist is required to have many skills. Keywords: Conditions, perceptions, production, television journalists, COVID-19.
Maintaining Business During Covid-19 Pandemic Through Social Media: A Content Analysis of Indonesian Football Club Instagram Account
Authors:   Sebelas Maret University, Indonesia, Kurniawan Yosia Enggar , Ardianto Deny Tri ,   Sebelas Maret University, Indonesia, Widodo Andreas Slamet ,   Sebelas Maret University, Indonesia
Published: October 2024

Indonesia has become the largest football industry with a huge fan base. Football continues to become a profitable brand and generates extraordinary profits, considering that football has a wide and large market share. As a brand, many football clubs have realized the power of branding in marketing clubs outside the club's local market through branding strategies carried out into content on social media. Currently, social media has become a popular and effective new media in the branding strategy of a football club. Their Instagram account has gained millions of followers in recent years, creating an effective medium for sales and promotion. Many Indonesian big brands agree to sponsor the club as a way to promote their products as well. However, the global pandemic hit from March 2020 to August 2021, and there was a long hiatus for football matches, considering the branding activity of a football club is very dependent on the passing of matches in a competition. Football matches become the 'main product' that attracts the attention of fans and sponsors. Due to this catastrophe, how can football clubs in Indonesia maintain business during the COVID-19 pandemic through Instagram content? Using a semi-structured interview with internal parties of a big football club in Indonesia, this study generates some practical summaries and implications on how to maintain business during the COVID-19 pandemic. The result shows the significant influence of the COVID-19 pandemic on the content analysis of the Football Club in Indonesia through Instagram. Keywords: COVID-19, football, content analysis, social media, Instagram.
Pembentukan Instrumen Pengukuran Perancangan Strategik: Pendekatan Analisis Faktor Penerokaan
Authors:   Universiti Kebangsaan Malaysia, Zakaria Nurzakira Afnee , Mahbob Maizatul Haizan ,   Universiti Kebangsaan Malaysia, Johori Md Rozalafri ,   Universiti Islam Selangor
Published: October 2024

Sektor awam merupakan agensi yang amat penting dalam melaksanakan segala perancangan strategik kerajaan yang mana ia menentukan hala tuju kementerian dalam memenuhi keperluan masyarakat dan negara. Namun begitu, terdapat kesukaran dalam membangunkan skala atau instrumen baharu yang mana peringkat awal penyelidikan terdapat ketidakpastian tentang sifat dimensi yang wujud serta terdapat kesukaran dalam membuat hipotesis untuk mengenal pasti faktor yang terbaik bagi menerangkan hubungan antara item. Justeru penyelidik menggunakan Analisis Faktor Penerokaan (EFA) untuk menentukan keabsahan instrumen persepsi untuk penyelidikan rintis responden terhadap (1) dimensi struktur organisasi, (2) dimensi budaya organisasi, (3) dimensi modal insan, dan (4) dimensi teknologi komunikasi. Kajian kuantitatif ini menggunakan rekabentuk tinjauan dengan borang soal selidik diedarkan melalui google form. Borang ini diedarkan secara dalam talian kepada penjawat awam pelbagai peringkat perjawatan yang mana mendapat maklumbalas seramai 100 responden. Hasil analisis EFA mendapati bahawa faktor penerokaan menunjukkan empat dimensi dengan nilai pengukur Kaiser-Meyer-Olkin (KMO) iaitu satu indeks pengukuran bagi kecukupan sampel mempunyai nilai Eigen lebih besar daripada nilai yang disyorkan iaitu 0.60 dan nilai Ujian Sphericity Bartlett adalah signifikan (χ2(190) = 3367.661, p < 0.05) dengan nilai Cronbach’s Alpha > 0.900. Penggunaan Analisis Faktor Penerokaan (EFA) dalam kajian ini memberi informasi yang penting kerana ia membolehkan penyelidik untuk mengenal pasti item utama yang mempengaruhi dimensi perancangan strategik di sektor awam melalui komunikasi modal sosial. Kata kunci: Analisis faktor penerokaan, sektor awam, perancangan strategik, komunikasi modal sosial, kuantitatif.
Networking Your Way into Mental Illness: SLR of Social Media Usage Among Malaysian Youth
Authors:   Universiti Pendidikan Sultan Idris, Malaysia, Victor Stephanie Ann , Yusuf Sarina ,   Universiti Pendidikan Sultan Idris, Malaysia, Abdul Kadir Khairulnissa ,   Ministry of Health Malaysia
Published: October 2024

Youths are the most common group with social media utilisation as they are the biggest group of internet users. Their social media usage, however, poses a threat to them in the form of mental illness. Besides, there are still insufficient studies that systematically review existing literature on Malaysian youth groups concerning their social media usage and mental illness. Following that, this study aims to identify the forms of mental illness that are affecting Malaysian youths. It also highlights the specific areas and content of research that should be the focus of future studies. Therefore, this systematic literature review on the mental illness outcomes associated with social media usage among Malaysian youth is guided by ROSES (Reporting Standards for Systematic Evidence Syntheses). This study selected articles from reputable and widely recognised databases including Scopus and PubMed. Based on the thematic analysis, this review has four main themes focusing on the mental illness outcome from social media usage, namely 1) distress, 2) fear, 3) depression, and 4) anxiety. The identified themes contribute to a deeper understanding of the potential psychological impact of social media on this population thereby facilitating the development of targeted interventions and strategies to promote mental well-being among Malaysian youths. Keywords: Social media, mental illness, Malaysian, youths, literature review.
Stress-induced phosphoprotein 1 expression in the endometrium and myometrium of patients with adenomyosis
Authors: Shalina Maria A. , Yarmolinskaya Maria I. , Beganova Alexandra K. , Tral Tatiana G. , Tolibova Gulrukhsor Kh.
Published: October 2024

BACKGROUND: The study of stress-induced phosphoprotein 1 in the pathogenesis of adenomyosis is not only of theoretical interest, but this protein may be also considered as a potential biomarker of the disease.
AIM: The aim of this study was to evaluate stress-induced phosphoprotein 1 expression in the endometrium and heterotopic foci in women with isolated adenomyosis and in combination with benign hyperproliferative diseases of the reproductive organs.
MATERIALS AND METHODS: This study enrolled 66 women aged 21 to 47 years (34.9 ± 6.7 years), including 49 patients with adenomyosis and 17 women in the control group. The main group was divided into subgroups depending on the concomitant hyperproliferative disease such as isolated adenomyosis (n = 36), adenomyosis combined with uterine fibroids (n = 8), and adenomyosis combined with endometriosis (n = 5). The patients underwent endometrial biopsy and multifocal myometrial biopsy. Histological and immunohistochemical studies were performed to assess stress-induced phosphoprotein 1 expression in the glandular and stromal components of the endometrium and ectopic endometrial tissue within the uterine myometrium.
RESULTS: We found increased stress-induced phosphoprotein 1 expression in the adenomyosis lesion compared to that in the myometrium of the control group, regardless of the phase of the menstrual cycle (p 0.001). When studying stress-induced phosphoprotein 1 expression in the endometrium of the main group in the proliferative phase of the menstrual cycle, an increase was found, but the differences were not significant. Stress-induced phosphoprotein 1 expression in the secretory phase of the menstrual cycle was higher in the glandular component of the endometrium of patients with adenomyosis compared to the levels in women in the control group (p 0.05).
CONCLUSIONS: The increased expression of stress-induced phosphoprotein 1 in the glandular component of the adenomyosis lesion indicates a potential role of the protein in the pathogenesis of the disease. However, further research is needed to determine its practical significance.
Las mujeres de Sección Femenina: Una aproximación interseccional a los perfiles de su militancia y los motivos de afiliación
Authors: Rodríguez López Sofía
Published: October 2024

Este artículo aborda la identidad de las mujeres del partido único durante el franquismo, analizando sus orígenes sociales como «camisas viejas» de la Falange, y la inflación en las filas de FET-JONS durante y después del conflicto bélico. Utilizando las diversas aproximaciones teóricas a la organización, cronologías y estudios de caso de toda España, trataremos de entender cuál era el poder de atracción de la única organización política femenina de curso legal durante la dictadura, en las primeras etapas de su existencia. Fue en la trayectoria reaccionaria de las familias acomodadas donde observamos cómo se conminó a sus hijas a apoyar, primero, las campañas en contra de la secularización del Estado republicano; votar a las derechas en 1933, y resarcir después a «sus caídos» en la Guerra Civil. En palabras de Pilar Primo de Rivera, lo más importante no era la organización adulta ni sus juventudes, «que son como las almenas de nuestras torres, [sino] esos muertos que son realmente nuestros cimientos, que son nuestras raíces».
Commentary on Verna Vazquez-Diaz de Leon “The Interactive Role of Music as a Facilitator for Mother–Infant Bonding in Early Motherhood”
Authors: Ilari Beatriz
Published: October 2024

The following is a commentary on Vazquez’ two-part study of mothers’ everyday uses of music and their relationships to the quality of mother-child interaction and bonding. The commentary considers how Vazquez’ findings are linked to the experiences and meanings of motherhood in modern times, including the stressors and pressures that many women experience as they begin their journeys as new mothers. The commentary presents three main points: the necessity to listen to maternal voices, the need to diversify study samples, and the recognition that mothers are a diverse group.
Embodiment Consciousness in Music Performance Pedagogy
Authors: Alves Anderson César , Nogueira Marcos
Published: October 2024

The acquisition of expertise in music performance and its pedagogy, depends on, beyond specific musical skills, employing resources from other fields of knowledge and considering sensory, motor, and affective capacities at each step of the music learning process. We studied the teaching practices of three expert clarinet teachers to investigate their didactic procedures, evaluating how those practices could be related to their students’ high levels of performance. The method gathered data from a “protocol joint analysis” and semi-structured interviews with teachers and their students. Data analysis revealed a particular set of pedagogical skills observed in the didactic procedures of these expert teachers. These teaching strategies were common to all three case studies and revealed themselves as a last didactic resource to overcome complex problems at the highest level of proficiency in musical interpretation. We call that pedagogical expertise field Embodiment Consciousness in Music Performance. This field of competence describes the systematic didactic use of metaphor to access performers’ sensorimotor and affective memories, whose semantic contents can thereby be accessed to support performance actions.
The Interactive Role of Music as a Facilitator for Mother–Infant Bonding in Early Motherhood
Authors: Vazquez-Diaz de Leon Verna
Published: October 2024

This two-part study explored if mothers’ uses of music in everyday life enhanced and facilitated the quality of mother–infant interactions, and consequently influenced maternal bonding. Study 1 was an exploratory qualitative study, which analysed the patterns of the mothers’ general uses of music and general experiences of motherhood. Study 2 analysed and explored the effects of mothers’ self-selected music on the quality of mother–infant interactions. The second study was based on a two-week trial with a mixed-method design including quantitative and qualitative approaches. It examined how mothers’ self-selected uses of music (maternal singing and listening to music) might influence parental stress, maternal attachment, and the quality of mother–infant interactions over the two-week period. The general findings suggested that mothers’ self-selected uses of music during daily mother–infant interactions can enhance face-to-face interactions. Furthermore, it served as an effective tool for promoting mothers’ sense of well-being. Finally, a cycle of three elements was observed: mothers’ musical responses influenced the infants’ musical responses by the synchrony of behavioral parameters between mother and infant.
Metaphor in Music Pedagogy and Its Connection to Embodiment Consciousness
Authors: Whalley J. Harry
Published: October 2024

This paper provides a commentary on “Embodiment Consciousness in Music Performance Pedagogy” by Alves and Nogueira, developing the notion that metaphorical language and extra-musical information can allow expert teachers to convey various teaching strategies. I expand upon some of the themes that are addressed in the article and the concept of metaphor in particular. This opens up some interesting ideas around how metaphors are culturally understood phenomena, ones that expert teachers can use to their advantage. The authors provide a framework in which this can be understood in terms of embodiment consciousness. However, there is room for more nuance as it relates to process.
Addressing Nutrition Risk in Older Adults in Community Settings
Authors: Macasaet Megan , Dhaliwal Rupinder , Chan Catherine
Published: October 2024

Nutrition risk, and subsequent malnutrition, can be common in community- dwelling older adults in Europe and other high-income regions. While a major factor in predicting loss of independence, hospitalization and mortality, they also largely preventable, but older adults often have limited supports to prevent or manage nutrition concerns in communities, compared with hospital settings. Primary care and other community settings are well-situated to provide screening and follow-up, although several barriers may exist when implementing preventative or curative interventions. Indeed, malnutrition prevalence in older adults ranges from less than 1% to almost 20% in high-income countries, which suggests there is disparity in prevention and treatment strategies. This narrative review aims to highlight the prevalence and costs of malnutrition, then focus on recent examples of community-based nutrition risk mitigation to guide the establishment of care pathways for malnutrition management in primary and community care. In particular, care pathways incorporating routine screening, which includes monitoring of dietary intake and weight of patients, with risk-based follow-up are shown to reduce nutrition risk. Likewise, leveraging both medical interventions from dietitians and non- medical interventions such as addressing food insecurity or social isolation are required to mitigate nutrition risk.
Implementation of diversity combining for radio monitoring of frequency-modulated signals
Authors: Faustov I.S. , Tokarev A.B. , Kozmin V.A.
Published: October 2024

Formulation of the problem. Radio monitoring of short-range systems is often complicated by the presence of fading due to the complex interference pattern at the receiving point. An effective method of combating fading is a diversity combining. Standard methods of diversity combining require an estimate of the amplitude multiplier and (or) phase shifts when adding signals, which significantly complicates the procedure of spaced reception. The aim of the work is to explore the possibilities of a diversity combining without the need to estimate a complex channel multiplier. Results: the possibility of providing high noise immunity without the need to estimate the radio channel profile for signals with Gaussian frequency-shift keying (GFSK) in conditions of slow flat fading is demonstrated. A method has been developed for receiving GFSK signals, which makes it possible to combine two or more receiving channels to increase noise immunity in multipath conditions. Practical significance. The presented method has a relatively low computational complexity and makes it possible to increase the efficiency of radio monitoring systems.
Method of formation of relay interference with the use of fiber-optic elements
Authors: Simonyan A. A. , Skripachev V. O.
Published: October 2024

The work is devoted to the use of fiber-optic elements in order to ensure the isolation of the receiving and transmitting path of the repeater under the stipulation that it is placed on board of the aircraft. The objective of the article is to consider in detail the possibility of formation of a relay interference with the use of fiber-optic elements and ensuring the isolation of the transceiver path. Technical solutions for formation and provision of isolation of the receiving and transmitting path have been proposed. Empirically, the result of a time delay has been obtained, sufficient to endow the spectral components with additional components, ensuring the suppression of the carrier oscillation of at least 10 dB. The presented results form the basis for modernization and industrial production of promising electronic suppression systems, and allow using new techniques for setting relay interference at ready-made active interference stations.
Two-stage deployment kinematics of petal type radio astronomical antenna
Authors: Bujakas V. I. , Glotov M. D.
Published: October 2024

A two-stage deployment of the petal type antenna for space radio telescope has been proposed. At the first stage, preliminary unstressed low-precision deployment of the antenna has been carried out. At the second stage, high-precision fixation of the final state of open reflector has been realized. To fix the final state of the open antenna self-setting locks have been proposed. Results of computer and physical simulation of the new deployment system have been presented.
A priori parameter estimation of space SAR operating in the sliding spotlight scan mode and in the terrain observation mode by progressive scans
Authors: Kozlov V. A. , Kurganov V. V. , Petrov A. S.
Published: October 2024

In the detailed mode of operation of the synthetic aperture radar (SAR), an improved level of geometric resolution of the terrain in a small frame is achieved. If, however, the frame length exceeds the size of the bottom trace in the azimuthal direction, then it is necessary to use a sliding spotlight operation mode (SSL), in which antenna pattern is scanned in the swath along the azimuth angle. To increase the width of the swath, ScanSAR mode is used. In the traditional implementation of this mode, image serration occurs. This effect can be eliminated by using terrain observation by progressive scans mode (TOPS)). In this mode, when shooting a frame, the antenna pattern runs quickly and alternately through all the specified partial swath bands. Despite the presence of a large number of publications in domestic and foreign literature devoted to the analysis of the main parameters of SAR operating in SSL and TOPS modes, there is a need to clarify calculation methods and increase the number of system parameters issued by them, which generally determine the basic appearance of the equipment. The purpose of the work is to clarify and detail the presentation of the methodology for a priori estimation of an increased number of parameters describing the main system characteristics of space SAR operating in SSL and TOPS. The paper develops and describes in detail a methodology with an exhaustive list of calculation ratios for a priori estimation of parameters describing the main system characteristics of space SAR operating in SSL and TOPS. Based on it, algorithms and software modules have been developed that allow you to perform calculations and display the results in a visual graphical form. Examples of computer calculations of 12 system parameters dependencies on the angle of sight of space radars operating in these two modes are given. The application of the developed methodology makes it possible to quickly perform an a priori assessment of a variety of basic system parameters of space radars operating in SSL and TOPS modes, which facilitates the selection of the most acceptable basic appearance of the equipment for practical implementation.
Development of manufacturing technology of polarization parabolic antenna reflectors for antennas of millimeter wave band
Authors: Zefirov V. L. , Lyubimova T. P. , Suchkova L. N. , Kuchin S. V. , Kuznetsova L. R.
Published: October 2024

Structurally antenna with rotation of the polarization plane consists of three main elements: an irradiator, a parabolic transreflector and a flat twist-reflector. A common problem for such antennas is complexity of the manufacture of the main element – parabolic transreflector. The purpose of the article is search for unreinforced foiled material, research the possibility of manufacturing parabolic transreflector by the photochemical method of making printed boards, as well as forming blanks for parabolic forming them. The article considers a new method of manufacturing of a parabolic transreflector for an antenna made of foil-fluoroplastic with a rotation of polarization plane. The technology of forming conductors with a width of 75 microns with a step of 225 microns by the photochemical method (according to the technology of manufacturing printed circuit boards) with subsequent molding of the workpiece to obtain a given parabolic form, has been developed. The main technological operations of manufacturing a parabolic transreflector have been described. The proposed solutions indicate the prospects of the developed technology manufacturing of polarization parabolic antenna reflectors for millimeter wave antennas.
RFID Tag technology (transponders) as a method of automation of business processes and production processes
Authors: Gorbachev A.S. , Moiseenko A.R. , Gluzdakova S.A.
Published: October 2024

An urgent problem currently posed in this article is the need to assess and understand the potential of RFID tag technology (transponders) as an innovative method of automating business processes and production processes. In today's world, companies are facing increasing demands for efficiency, accuracy and speed of operations, and the introduction of RFID technology may represent a solution to improve these indicators. However, companies face challenges in the form of high implementation costs, difficulties in integrating with existing systems, as well as issues of data security and confidentiality. In this regard, it is necessary to consider the advantages and disadvantages of RFID technology and offer recommendations on the successful implementation of this technology to improve the efficiency and competitiveness of companies. To explore the possibility of automating business processes and production processes through the use of RFID tags and reader technology. The analysis of the technical characteristics of RFID tag technology (transponders) and the possibilities of application for automation of business processes and production processes is carried out. The advantages and disadvantages of the technology are highlighted. The diagrams of the components and the principle of operation of the system are obtained. The options for using the technology in the automation of business processes and production processes are proposed. The obtained research results can be used in the automation of business processes and production processes, as well as in the processes of storage and sale of products.
Analysis of models and development of a software package for assessing the impact of vibration effects of vehicles on urban infrastructure
Authors: Stepanov K.D. , Druzhinina O.V. , Petrov A.A.
Published: October 2024

The direction associated with the construction and research of models that can be used to predict the impact of vibration effects of vehicles on surrounding infrastructure facilities is relevant given the increasing pace of civil engineering in large cities and taking into account the expansion of transport networks. The development of models for evaluating vibration effects and for subsequent use in monitoring and diagnostic systems requires the use of modern methods of nonlinear analysis, discrete mathematics, as well as tools for the development of expert systems and artificial intelligence technologies. The purpose of the article is to obtain the results of the analysis of a complex mathematical model of spatial interactions, the development of algorithmic support and a description of the structure of a software package for assessing the impact of vibration effects of vehicles on urban infrastructure. A model of spatial interactions is proposed to assess the levels of vibration exposure with the construction of a graph of the placement of objects connected by vibration propagation channels and using the mathematical apparatus of modeling hybrid dynamic systems, expert knowledge and fuzzy rules of logical inference. Examples of constructing a model of spatial interactions taking into account three objects of vibrational observation are considered. The VibCalcAlg algorithm has been developed to calculate the states of a three-component model. The structure of the VibCalc software package is described, which includes a block of fuzzy logic, a block of model construction and a block of visualization. The results can be used in solving mathematical modeling problems related to the assessment and prediction of vibration impacts in the field of transport and civil engineering, as well as in solving environmental protection problems. The results are aimed at improving intelligent monitoring systems and decision support systems in the design, construction and operation of transport facilities.
Computer simulation of DDOS attacks on continuous monitoring systems
Authors: Gayvoronskiy A.I. , Kochkarov A.A. , Shchetinin E.Y. , Prokopchina S.V.
Published: October 2024

The task of building models and analyzing the protection of continuous monitoring systems from cyber-attacks is currently becoming particularly relevant due to the rapid development and implementation of monitoring systems in various industries. Despite the constant development of the field, the task of identifying potential information threats to such systems remains at the same level with the development of means and methods of conducting cyber-attacks. The purpose of this work is to develop a DDOS attack model for a spatially distributed continuous monitoring system with a hierarchical structure of connections between sensors. To define various criteria for the functionality of a spatially distributed continuous monitoring system when exchanging messages between the elements (sensors) of the system. Results. During the study, the authors performed a number of experiments using computer modeling. Computer simulations of DDoS attacks on a spatially distributed continuous monitoring system were carried out in cases of system operation with and without load. The criteria of the system's operability over time are defined, and an approach to determining the system's serviceability based on Amdahl's law and evaluating the acceleration of the system is proposed. It is shown by the example of computer experiments that the model has practical significance, and the results of applying the model can be used to reduce the risks associated with DDoS attacks.
On assessing the reliability of real-time systems at the operational stage
Authors: Volosenkov V.O. , Khramov M.Yu. , Novikov E.S.
Published: October 2024

Information management systems operating in real time are characterized by increased reliability requirements. The problem of reliability is becoming increasingly important due to the constant complication of the systems being developed, the expansion of the range of tasks assigned to them, is complex and relevant in modern conditions. Reliability assessment methods and models are constantly being developed and refined, since reliability is one of the key quality problems of modern distributed real-time systems. The article discusses methods for ensuring the reliability of complex systems at the operational stage. Approaches for evaluating reliability indicators of complex systems at the operational stage are presented. The issues of ensuring the reliability of complex systems at the stage of operation are considered. The basic basic concepts of reliability are defined. Approaches for evaluating reliability indicators of complex systems at the operational stage are presented. The analysis of models and methods for assessing the reliability of complex systems at the operational stage is carried out.
Influence on the soliton of changes in the nonlinearity coefficient of the medium
Authors: Chumakov S.O.
Published: October 2024

The problem of solitons propagation (electromagnetic waves in the form of solitons) in a medium with a varying nonlinearity coefficient along the propagation trajectory is considered. Сonducted research have shown that the changes occur in the width and amplitude of the soliton while maintaining its energy, with a change in the nonlinearity coefficient of the medium. It is shown that with a sharp change in the nonlinearity coefficient, the soliton is partially destroyed and part of its energy is emitted, i.e. dissipated by the medium. It is shown that an increase in the nonlinearity coefficient leads to a noticeable increase in the amplitude of the soliton with a simultaneous decrease in its width.
Application of wireless communication in space networks for functional redundancy
Authors: Bruskov A.A. , Artyushenko V.M.
Published: October 2024

Problem setting. In accordance with the Federal Space Programme, a great deal of work is currently being done to strengthen and develop the space potential of the Russian Federation. Their aim was to expand and increase the efficiency of the use of outer space in order to meet economic, scientific and other national economic challenges. Spacecraft and space networks, like engineering objects, degrade and fail over time. In order to meet the requirements of spacecraft, modern methods of improving survivability should be developed and used. Purpose. Explore the possibility of using wireless communications in space networks for functional backup. Results. It has been demonstrated that consideration of a simple network of two spacecraft provides a significant improvement in survivability with respect to endogenous failures. It had been shown that increasing the number of spacecraft in the network offered additional benefits in survivability. Practical significance. The results obtained allow using this experience for other studies of functional redundancy in spacecraft. Studies had shown that increasing the number of spacecraft in the network offered additional reliability advantages.
Cybersecurity of systems implementing data intensive domains. Part 1. The place of cybersecurity in the protection of information
Authors: Budzko V.I. , Korolev V.I. , Belenkov V.G. , Keyer P.A.
Published: October 2024

The current stage of development of Russian society is characterized by the digital transformation of all its spheres, including economics, science, healthcare, education, culture, etc. One of the directions of such transformation is the widespread use of artificial intelligence technologies (AIT). AIT have a significant potential to transform society and people's lives – from trade and healthcare to transport and cybersecurity, as well as the environment. At the same time, AIT entail risks of managing information security (IS), which can negatively affect individuals, groups, organizations, sectors of the economy and society as a whole. The article analyzes additional features of managing automated systems (AS) IS of due to their use of the capabilities of AIT and multilayer neural networks (MNN). The characteristic features of the threats associated with the training and testing of MNN and influencing the AIT-risks for such AS are also identified. The paper presents a classification of AS security threats using vulnerabilities specific to the MNN. The features that have a significant impact on the way AIT-risks are implemented when using software components using and not using MNN are determined. The article defines the features of managing AS information security due to their use of the capabilities of AIT and MNN, which must be taken into account when developing, implementing and operating such AS.
Modeling the long-term preservation of archival documents using digital twins
Authors: Solovyev A.V.
Published: October 2024

Despite the fact that an analysis of modern scientific works shows the active use of digital twins, primarily in industrial production, and, partly, in other areas of the economy and society, the use of digital twin technologies in the field of archival storage has not yet been considered. However, in the context of the digital transformation of the economy and society, the criticality of the safety of digital data in general and documents in particular increases significantly. For example, the digital economy program of the Russian Federation defines data in digital form as a key production factor in digitalization. On the other hand, ensuring the safety of valuable documents is an important government task, which in the context of digitalization must be solved at a qualitatively new level. The goal of the work is to develop a concept for modeling the long-term preservation of archival documents using digital twin technology. The article proves the relevance of using digital twin technologies for organizing long-term storage of documents and digital data. The work identifies the problems of archival storage and shows the need to improve the efficiency of archival storage. A formal formulation of the problem of organizing archival storage of documents using digital twins has been completed. Mathematical models for simulating archival storage conditions, as well as technologies for monitoring the safety and reconstruction of documents, are proposed. The need to use 3D/4D printing technologies and artificial intelligence is considered. The effectiveness of archival storage using digital twins was assessed. Based on the author’s experience in developing large digital archival solutions, we can conclude that the conceptual solutions proposed in the article would significantly help in ensuring the safety of documents of various types and storage periods. Preliminary calculations show that the expected security efficiency when applying the proposed concept will increase by 5–10 times.
Fomento de las fortalezas del ocio familiar en el entorno rural: perspectivas de los adolescentes
Authors: Hernández Prados María Ángeles
Published: October 2024

Revalorizar las fortalezas del ocio familiar es una necesidad evidenciada por la pandemia, especialmente en la etapa de la adolescencia, que no debe quedar en el olvido con independencia del contexto de residencia. Este estudio pretende conocer las fortalezas que los adolescentes matriculados en centros rurales atribuyen al ocio familiar y su significación en función de la nacionalidad, rendimiento académico, el curso y la nacionalidad de los padres. 546 adolescentes de la zona rural murciana cumplimentaron un cuestionario ad hoc de 50 ítems. Los resultados muestran que los adolescentes de entornos rurales, a nivel general, identifican positivamente su ocio familiar y, de forma específica, la convivencia, la comunicación y la unión familiar como las principales fortalezas desarrolladas. Además, la nacionalidad de padres e hijos, el curso y el rendimiento académico son variables de significación respecto a la percepción del ocio familiar. Finalmente, se subraya la necesidad de instaurar nuevos servicios de ocio que regeneren las prácticas de ocio desde el papel de las instituciones y los centros escolares.
Percepción y satisfacción del profesorado de lenguas en secundaria y bachillerato hacia los programas de formación. Un análisis experimental
Authors: Gómez Devís María Begoña
Published: October 2024

El docente actúa según concepciones personales propias de su interacción con los otros y del contexto socioeducativo en el que se desenvuelve. Con el propósito de aproximarnos a su actividad cognitiva ―pensamiento― se presenta una investigación que indaga el imaginario del profesorado de lenguas (ESO y Bachillerato en la ciudad de Valencia y área metropolitana) sobre la formación inicial y continuada según las variables sexo/género y lengua meta. Para ello se ha diseñado y validado un cuestionario que reúne aspectos relacionados con la observación, reflexión y concienciación respecto de los procesos vinculados a su formación y desarrollo profesional. Entre las conclusiones más relevantes del estudio se obtienen tendencias divergentes en función de la lengua que se enseña (L1, L2 y LE) y el sexo/género del educador.
Hermenéutica del burnout: una tematización bioética a la luz de la condición humana
Authors: García Uribe John Camilo
Published: October 2024

Propósito/Contexto. El síndrome de burnout como enfermedad trasciende lo laboral y abarca también factores sociales, históricos e individuales. El propósito de este artículo es tematizar el burnout como un asunto bioético que puede ser analizado a través de la condición humana descrita por Hannah Arendt; parte de esta tematización implica el develamiento de tensiones que convergen tanto el plano conceptual como en el ámbito práctico de la evolución y el diagnóstico de la enfermedad.
Metodología/Enfoque. La propuesta metodológica se sustenta en dos momentos: en primer lugar, se toman herramientas de la fenomenología hermenéutica para analizar la traducción y la definición del burnout, esbozando repercusiones teóricas y prácticas de ello. En segundo lugar, se hace una lectura a través de los conceptos labor, trabajo y acción de Hannah Arendt y algunos aportes teóricos de Ricardo Maliandi de la ética como tematización del ethos, según lo cual, se propone entonces una tematización bioética del burnout a la luz de la condición humana y los niveles de reflexión ética.
Resultados/Hallazgos. Los resultados presentan la conflictividad de la traducción y la definición actual del burnout, así como lo contradictorio que puede ser manejar el estrés en un mercado laboral que requiere de personas con competencias de trabajo bajo presión, sin fracasar en el intento al enfermarse por ello.
Discusión/Conclusiones/Contribuciones. Una tematización bioética del burnout es más que necesaria para exponer traducciones y definiciones problemáticamente anestésicas, pero también para develar fenómenos de normalización de discursos y prácticas de trabajo bajo presión que pueden conllevar a la consecuencia de reducir, fáctica y teóricamente, la vita activa a solo la labor por la mera supervivencia y este esfuerzo por sobrevivir puede atentar contra la supervivencia misma.
Electrochemical synthesis of substituted 2-amino-4H-chromen-3-carbonitrides based on cross-conjugated dienone derivatives of cyclohexane and malononitrile
Authors:   Saratov State University, Nikulin Alexandr V. , Burashnikova Marina M. ,   Saratov State University, Vasilkova Natalya O. ,   Saratov State University, Krivenko Adel P. ,   Saratov State University
Published: October 2024

The relevance of research in the field of chemistry of compounds of a number of 2-aminochromen(pyran)-3-carbonitrile is due to their practical significance and numerous transformation possibilities. Over the past two decades, there has been a dynamic development of the electrochemical synthesis of compounds of this series, which is determined by the possibility of eliminating expensive or toxic reagents, conducting reactions at normal temperatures and pressure in electrolyzers of a fairly simple design and other advantages. Based on the efficiency and environmental friendliness of this method, we have for the first time synthesized 2-aminotetrahydro-4H-chromene-3-carbonitriles based on available cross-conjugated dienone derivatives of cyclohexane series and malononitrile under electrolysis conditions (platinum cathode, graphite anode, KBr electrolyte, 80% EtOH). The control over the course of the reaction and the electrochemical behavior of all components has been carried out using cyclic voltammetry. The analysis of the voltammograms made it possible to establish the direct activation of the methylene component at the cathode with the formation of the anion -CH(CN)2. A comparison of the electrochemical synthesis of chromencarbonitriles with the chemical one indicates a significant advantage of electrosynthesis due to the exclusion of a toxic organic catalyst, reduction of reaction time with good yields of products, as well as the possibility of monitoring reactions using cyclic voltammetry, dispersion of products.
The effect of cetylamine on the absorption spectra and protolytic properties of lumogallion and magnezon HS
Authors:   Saratov State University, Tyunina Yulia A. , Shalabay Sofya A. ,   Saratov State University, Yurasov Nikolay A. ,   Saratov State University, Shtykov Sergei N. ,   Saratov State University
Published: October 2024

The interaction of monoazo compounds lumogallion (LG) and magnezon HS (MHS) with cetylamine (CA) in a wide pH range has been studied using a spectrophotometric method.It has been shown that the formation of ionic associates of CA under the interaction of its cation with sulfo group of azo compounds in the pH range 1–4 does not change the electronic absorption spectra of the azodyes. The interaction of CA at dissociated OH groups conjugated with the π-system of the azo compounds leads to a bathochromic shift in the maximum of the absorption spectrum of the corresponding ionic form of the reagents by 15 and 30 nm for the doubly and triply charged forms of LG, respectively, and by 50 nm for the doubly charged form of MHS. The shift in the maximum of the absorption spectrum is accompanied by the shift in the apparent pK value of the reagents by 2–4 pH units, caused by the binding of the dissociated form of the reagents. The reason for these changes in the absorption spectra and protolytic properties of both reagents is the formation of hydrophobically hydrated ionic associates of azo compounds with the cetylamine cation.
Density of scots pine seedlings in pine forests under the influence of emissions from the Karabash copper smelter and forest fires
Authors:   Ilmen State Reserve, South Urals Federal Research Center of Mineralogy and Geoecology of the Urals Branch of the Russian Academy of Sciences, Kuyantseva Nadezhda B. , Mumber Alexander G. ,   Ilmen State Reserve, South Urals Federal Research Center of Mineralogy and Geoecology of the Urals Branch of the Russian Academy of Sciences, Molchanova Darya A. ,   Institute of Plant and Animal Ecology UB RAS, Veselkin Denis V. ,   Institute of Plant and Animal Ecology UB RAS
Published: October 2024

We assessed the features of natural pine regeneration in forests with different ages of ground fires in the Southern Urals depending on the level of heavy metal pollution. Using the materials obtained from 81 sample plots laid in maturing, mature and over-mature pine forests of natural origin in three types of forest growth conditions (TFGC 1 – TFGC 3), the relationship between the density of pine seedlings and the state of forest stands (crown density, stand age, vital status index), with the characteristics of vegetation condition (total number of species, total projective cover of herb-shrub layer, projective cover of bryophytes layer), with external influences (pollution level, distance from emission source, duration of fire disturbance), and with the methodological features of the study (accounting year) was analyzed. The high variability of estimates of the density of pine seedlings did not allow us to identify the relationship between the density of seedlings and the level of pollution and/or fire disturbances. The density of seedlings is nonlinearly related to the protective cover of the herb-shrub layer. With increasing coverage of the herb-shrub layer, the density of seedlings increased in areas with high levels of pollution and decreased in areas with background pollution.