bluuebunny/crossref_metadata_2025 huggingface dataset:
Influence of Friction Angles on Earth Pressures in Dry Granular Flow Dynamics and Soil Mechanics
Authors: Kafle Jeevan , Pandey Ramuna , Dangol Bekha Ratna , Tiwari Chet Nath , Kattel Parameswari
Published: January 2023

The earth pressure coefficient (K) determines the nature of (tendency of) deformation of the granular mass during flow or deposition. When flow velocity is increasing, K takes its active state Kact and the flow is divergent. When the flow velocity is decreasing, K takes its passive state Kpas and the flow is convergent. The mathematical relations presented here and their 2-D and 3-D plots highlight that the passive and active earth coefficients strongly depend on the internal angle (δ) and basal angle (ϕ) of frictions. The mathematical relation for dry granular mass flow is extended to find these coefficients in soil mechanics. Results further show that active earth pressure drops as the internal angle of friction increases, but passive earth pressure rises. The earth's pressure is at rest if the wall is in its natural position
Awareness Of Sexual Harassment Among Secondary School Students
Authors: Dawadi Sabina , Chaudhary Tanuja Kumari , Gauro Pooja
Published: January 2023

Sexual harassment has gained global attention and has been recognized as a critical public health concern with significant negative impacts on victims ‘physical and mental health. This study aimed to find out the awareness of sexual harassment among secondary school students in Nawalparasi District, Nepal. The descriptive cross-sectional research design was used to find out the awareness of sexual harassment among secondary-level students in Devchuli Municipality, Nawalparasi. Students studying in grades eight, nine, and ten were identified from two conveniently selected schools out of the 12 private schools in the study area. In total, 150 students took part in the study, and every one of them completed the questionnaire in its entirety. Data entry and analysis were done in Statistical Package for Social Science (SPSS) version 20. The obtained data we reanalyzed using descriptive statistical methods like frequency, percentage, mean, and chi-square to ascertain the relationship between the level of awareness of sexual harassment and the selected socio-demographic characteristics. The findings showed that, among 150 respondents, most (82.0%) had a good level of awareness regarding sexual harassment. According to respondents ‘suggestions for preventing sexual harassment (SH) can be stopped by enacting strict rules, regulations, and policies against those who engage in the practice (85.3%), running awareness campaigns about the issue (83.3%), and offering training on how to handle sexual harassment (75.3%).There was no statistically significant relationship between the level of awareness of sexual harassment and the selected socio-demographic variables. It can be recommended that schools conduct an ongoing sensitization program or awareness campaign to teach students about sexual harassment periodically.
Writing Off: Approaching Modernity through Social Change
Authors: Phuyal Komal Prasad
Published: January 2023

As rupture in the prevailing practices, modernity adopts writing off as one of its diverse ways of bringing the ethos of contemporary time to match up with the aspirations of people. The inner core of the society develops erroneous aspects in its structural foundations over a course of time, whereby promoting social inequalities. Often, the proponents of such system fail to see through the possible implications of such fault line during the inceptions. The fissures in system set onto trouble the people, thereby obstructing the smooth functioning of the society. In such context, the society calls for the intervention of the larger agency, capable of enforcing and sustaining change. The present study examines and analyse slavery as the system that has undergone such change in the history of Nepal. I have taken Chandra Shumsher’s 1924 speech on abolition of slavery and Madan Mani Dixit’s Madhavi (1983) as the primary source of data to explore examine and analyse slavery from the intersection of history and literature in that both Shumsher and Dixit reflection the nature and course of slavery as such. Using the critical perspective of new historicism, the study concludes that modernity employs ‘writing off’ as one of the chief strategies to upgrade the polity with the ethos of contemporaneity.
The Relevance of Buddhist Perspectives to Political Science Education
Authors: Phuyal Shyam Prasad
Published: January 2023

Buddhism aspires to impart truthfulness, beauty, morality, kindness, contentment, and enlightenment in its believers. Buddhism's primary teachings may also provide viewpoints for political science courses. The main objective of this paper is to identify human values and social values in modern society as the essence of Buddhist teachings that are significant in Political Science Education and modern civilization. As a review paper, this paper contains a comprehensive introduction to Buddhism, its basis, teaching methods, and educational approaches. The paper extensively uses secondary data in its methodology. The data were analyzed using the content analysis method, and the findings were discussed as the themes that emerged. Then, a contemplative conclusion on Buddhist teaching and its pedagogical components is included. The major implications of Buddhism for Political Science Education have been indicated. The conclusion is then that Buddhism provides such constructs for education as personal freedom, intelligence, wisdom, moral, talent, non-violence and the secular persons, and that it can be a significant source of the curricular contents for Political Science Education.
नरसिंह अवतार महाकाव्यमा प्रयोगशीलता {Applicability in Narasimha Avatar epic}
Authors: गौतम Gautam तुलसीप्रसाद Tulasiprasad
Published: January 2023

यस लेखमा जगदीश शमशेर राणाद्वारा रचित नरसिंह अवतार महाकाव्यको प्रयोगवादी अवधारणाका आधारमा अध्ययन तथा विश्लेषण गरिएको छ । प्रयोगवाद आफैंमा कुनै वाद होइन, साहित्यमा गरिने नयाँ–नयाँ प्रयोगलाई प्रयोगवादी भन्ने चलन छ । नेपाली कवितामा प्रयोगवाद भन्नाले वि.सं. २०१७ सालको रूपरेखा पत्रिकामा प्रकाशित मोहन कोइरालाको घाइतेयुग कविताबाट सुरु भएको नयाँ कविता धारालाई बुझिन्छ । यस धाराका कवितामा अमूर्त लेखनशैली, सम्प्रेषणहीनता, संरचनागत शिथिलता, नयाँ नयाँ बिम्ब, प्रतीक र मिथकको प्रयोग, विसङ्गतिको प्रस्तुति र अस्तित्ववादी चेत जस्ता कुरा मुख्य विशेषताका रूपमा रहेका छन् । यिनै कुरालाई आधार बनाई यसमा नरसिंह अवतारको विषयवस्तु, कथानक, चरित्र, परिवेश, उद्देश्य, भाषाशैली आदि तत्वहरूको अध्ययन तथा विश्लेषण गरिएको छ । यस अध्ययनबाट प्रस्तुत महाकाव्य विषयवस्तुको छनोटमा, कथानक निर्माणमा, पात्रविधानमा, परिवेश निर्माणमा, उद्देश्यका साथै भाषाशैली आदिको प्रयोगमा परम्परित महाकाव्यक संरचना भन्दा भिन्न र नयाँढाँचाको प्रयोगशील बन्न पुगेको प्रस्ट भएको छ ।
Centaurea debeauxii Gren. & Gordon (Asteraceae, Cardueae), una especie europea, nueva para Uruguay
Authors: Orfeo Crosa O. , Bancheva S.
Published: January 2023

Se describe una nueva especie exótica, naturalizada, de la familia Asteraceae, Centaurea debeauxii, hallada en el Departamento de Montevideo, Uruguay.
PODSTAWY PRAWNE FUNKCJONOWANIA SŁUŻBY CYWILNEJ ZJEDNOCZONEGO KRÓLESTWA, NOWEJ ZELANDII, KANADY I AUSTRALII. UWAGI O CANZUK
Authors: Szczepański Jarosław
Published: January 2023

The presented paper is a result of a comparative analysis of the legal foundations of the civil services or public services, which is more popular name in the narrowly understood Anglosphere countries – the CANZUK group. The comparative study deals not only with the provisions on the employment and the duties of the civil servants of the respective countries but also discusses the Westminster/Whitehall system, which was developed in United Kingdom, on the reformed systems of the former dominions. What is more, in the case of Australia – sometimes described as a place of birth of the Washminster system – remarks on the American influence were added. The article is one part of a cycle “Remarks on CANZUC”, devoted to the analysis of the law and politics of the narrowly understood Anglosphere.
ZASADA "NULLUM CRIMEN SINE LEGE" W ORZECZNICTWIE SĄDÓW ADMINISTRACYJNYCH
Authors: Błachnio-Parzych Anna
Published: January 2023

"Nullum crimen sine lege" is one of the main principles of penal law, to which responsibility for specific administrative offenses, so-called administrative-criminal responsibility, belongs. This principle means that penal offenses and penalties for their commission should be prescribed in statutes, in a manner that is precise and clear. It also requires a strict interpretation of penal law and prohibits retroactive application of provisions introducing and tightening penal responsibility. The importance of this principle under substantive criminal law is reflected in the rulings of the courts. The purpose of this article is to answer the question of how this principle is perceived and whether it plays the same role in the rulings of administrative courts in cases concerning administrative-criminal responsibility.
KILKA UWAG NA TEMAT JĘZYKA USTAWY KARNEJ
Authors: Gardocki Lech
Published: January 2023

The study concerns the linguistic form in which the elements of an action are captured in the process of criminalization. One of the problems raised in this context is the use of colloquial language and the degree to which this way of formulating elements of crimes ensures the clarity of the description of prohibited acts. This is particularly important for the implementation of the guarantee function of criminal law. The author attempts to define a legislative technique that would ensure the protection of individuals against arbitrary interpretation of the provisions of criminal law.
ACADEMIC MOBILITY PROGRAMS AS A MECHANISM FOR IMPLEMENTATION OF THE INTERNATIONALIZATION PROCESS OF POLISH HIGHER EDUCATION
Authors:   Сілезька академія, OSTENDA A.
Published: January 2023

The purpose of the article is to study academic mobility programs that are being implemented in Poland as a mechanism for implementing the internationalization process of higher education and allow to assess the level of the country's involvement in such events and to form further prospects for development in this direction. Author noted that the most important impetus for the development of the internationalization of higher education in the European Union as a whole and in Poland was the Bologna process. Special attention is focused on the fact that the country is an active participant in it, which allows, against the background of preserving the best traditions of the national higher education system, to increase the competitiveness of universities, to join the unified educational space. The importance of academic mobility programs as a mechanism for implementing internationalization processes has been proven. The level of academic mobility development in Poland is analysed. The main trends in the implementation of these processes in institutions of higher education were studied. Approaches have been established that provide the opportunity to achieve diversity in models, priorities, and geography, going beyond the boundaries of the European community. A set of tasks aimed at the academic mobility development in the country and measures implemented to intensify the use of programs in this area have been defined. We argue that academic mobility programs implemented in the country are divided into international (pan-European), those offered at the national level and universities. The characteristic features of several such initiatives, their direction and conditions are analysed. The variety of offers in both Polish and English languages is emphasized, which contributes to attracting the attention of both students and teaching staff from different countries. Attention is focused on certain types of financial support and assistance, which are provided in the form of various scholarships and grants. The need for systematic activity in the direction of the development of academic mobility programs was noted. A set of measures has been formed, which should be implemented at different levels of management (national and university) and aimed at increasing the efficiency and intensification of these processes in Poland. Key words: academic mobility, academic mobility programs, higher education, quality of education, educational space, higher education institution, internationalization of higher education, integration processes.
MAIN DIRECTIONS OF CORRECTION OF EMOTIONAL AND VOLITIONAL SPHERE OF CHILDREN WITH DISORDERS OF THE MUSCULOSKELETAL SYSTEM BY MEANS OF SWIMMING
Authors:   Комунальна Установа «Центр реабілітації осіб з вадами психофізичного розвитку», LITVYAKOV M.
Published: January 2023

The article deals with the main directions of correction of emotional and volitional sphere of children of senior preschool and primary school age with disorders of the musculoskeletal system by means of swimming. Emotional and volitional sphere of a child with musculoskeletal disorders has its own peculiarities and requires a specific approach in the correction of disorders and development. It should be noted that the intellectual development of children with musculoskeletal disorders is directly related to the child's ability to experience complex emotions at different age stages. In this regard, it is appropriate to consider the phenomenon of emotions and the human psyche in general. Disorders of the musculoskeletal system is a complex disease of the central nervous system, which leads not only to motor disorders, but also often leads to mental retardation or pathology, speech impairment, emotional and volitional disorders. The use of water environment for correction of emotional and volitional sphere of children can be based on two methodological bases. Firstly, the acquaintance with a relatively new environment (water), being in it, motor and game activities with adults, peers and toys is a kind of return of the child to its primary natural environment both in the phylogenetic sense (evolution of fish, amphibians, reptiles) and in the ontogenetic aspect (the child's presence in the uterus in the amniotic fluid before birth). This process, reinforced by the method of the atricalization (dosed dramatization) of swimming lessons always fills the child with a capacious spectrum of emotions with the dominance of positive ones (satisfaction, joy, pleasure, elation, interest, etc.). Secondly, being in the water, learning to swim involves the systematic overcoming by the child through his volitional manifestations of various psychologically and physically uncomfortable situations for him: the unknown, anxiety, doubts, uncertainty, fears, fatigue, tactile and muscle discomfort, natural physiological reflexes, etc. This will allow the teacher to form the volitional component of the mental development of children of this contingent. The prospects of research in this direction lie in the search for new opportunities to use swimming equipment in the correction of the emotional and volitional sphere of this category of children. Key words: correction, children, disorders, musculoskeletal system, swimming, emotional-volitional sphere.
ABOUT DEVELOPING OF STUDENTS OF SPECIALTY 016 SPECIAL EDUCATION PRACTICAL SKILLS IN THE ORGANIZATION OF CORRECTIONAL AND DEVELOPMENTAL WORK DURING DISTANCE EDUCATION
Authors:   Бердянський державний педагогічний університет, MYTSYK H. , HUSAK A. ,   Бердянський державний педагогічний університет, CHEREPANOVA A. ,   Бердянський державний педагогічний університет
Published: January 2023

The article draws attention to the peculiarities of the organization of remedial and developed classes for children with special educational needs during distance learning, the importance of modern digital technologies in their provision. It is recognized expedient as the need for time to use distance learning and its technology under extraordinary circumstances. The change of the traditional role of a special education teacher during distance learning is indicated, which is not limited to correctional and pedagogical activities and requires new professional skills. Among other things, the need for a sufficient level of digital awareness of special education teachers, which would allow them to properly organize corrective and developmental work during distance learning for children with special educational needs, using various digital platforms and services for this purpose is justified. The advantages of their use in the corrective and advanced work of a speech therapist with children with speech disorders are considered. An opinion about formation practical skills of the organization of corrective and developed work during distance learning for children with special educational needs of future teacher-speech therapist during their studying in a higher education institution is expressed. As a result, it is a deepening the digital competence of future teacher-speech therapist as an integral component of their professional training. The role and opportunities of higher education in providing practical training of future teacher-speech therapist are clarified on the example of the work of the Educational Speech and Language Therapy Laboratory of the Berdyansk State Pedagogical University as its structural division. Taking into account the available work, the participants of the training-speech laboratory of Berdyansk State Pedagogical University of digital platforms and programs in work with children having problems of broadcasting online are highlighted. Key words: extraordinary circumstances, distance learning, digital technologies, correctional development, future teacher-speech therapist, children with speech disorders, digital didactic exercises.
THE USE OF GAMIFICATION IN THE SYSTEM OF SOCIAL AND PSYCHOLOGICAL FORCIBLY DISPLACED TEENAGERS’ ADAPTATION
Authors:   Бердянський державний педагогічний університет, MYTSYK H. , POPOVA A. ,   Бердянський державний педагогічний університет, BOHDANOVA M. ,   Бердянський державний педагогічний університет
Published: January 2023

The article presents the authors’ view on the problem of social and psychological forcibly displaced teenagers’ adaptation as a result of the armed aggression of the Russian Federation against Ukraine. The importance of studying the foreign colleagues’ experience regarding the methods (measures) used by them is characterized, which allow a forcibly displaced teenagers to adapt quicker to a new educational environment in an unfamiliar country. The essential characteristics of the social and psychological forcibly displaced teenagers’ adaptation were analyzed. It is noted that the school is the main institution that provides the proper conditions for the social and psychological adaptation of forcibly displaced teenagers. The use of gamification method in school conditions as a way of influencing the process of social and psychological forcibly displaced teenagers’ adaptation is substantiated, taking into account the interests of modern teenagers, their fascination with digital means and constant use of the Internet. The structural elements of the gamification method in the educational process are highlighted, and its advantages are indicated. The main tasks of social and psychological teenagers’ adaptation by means of gamification (subcultural identification, self-actualization, emotional attunement) are defined. The algorithm of implementation and use of the gamification method in this process is presented. The feasibility of creating high-quality educational content is emphasized; its elements (dynamics, mechanics and components) are characterized. The importance of the teacher's role when applying the gamification method is accented. It is underlined that the professional competence of the pedagogical and social worker is considered as a necessary condition for achieving the goals determined by the use of gamification. In the context of improving methods that would ensure the effectiveness of social and psychological forcibly displaced teenagers’ adaptation at the stage of their education at school, it is recognized to be quite important to spread one's own efforts in this regard. Key words: armed aggression, forcibly displaced teenagers, social and psychological adaptation, school, gamification.
Prevalence of Compassion Fatigue Among Nursing Staffs Working in High Acuity Clinical Settings, within Dubai Health Authority Hospitals, UAE.
Authors: Ruba Sam Shyarlin , Diabet Osama , Villa Bethzaida , Philipose Jolly , Babu Swapna
Published: January 2023

Background: Compassion Fatigue is common among nurses and can have devastating consequences if not detected early. The impact may be more prevalent where nurses work in emotionally challenging environments, such as high-acuity clinical areas. Studies about compassion fatigue (CF) are plenteous in the western world. Yet, there is a paucity of research attributed to these issues in the gulf region , particularly in UAE. Our study explores the prevalence of Compassion Fatigue among Nurses working in Dubai Health Authority (DHA) hospitals. Methods: Our study used a Descriptive, Cross-sectional design. The Professional Quality of Life Scale version 5 (ProQOL 5) was used for data collection from nurses working in high-acuity clinical areas, in all the DHA hospitals. Results: A total of 525 Nurses returned the completed survey forms. 61% of the participants reported moderate compassion satisfaction while 38.1% reported high levels of compassion satisfaction. 67.6% of  participants reported moderate levels of burnout with 54.7% seeming to be having secondary traumatic stress. Conclusion: the study strongly recommends initiating interventions and strategies aimed at combating compassion fatigue.
WRITING THE GREAT WAR
Authors: Weinrich Arndt
Published: January 2023

From the Treaty of Versailles to the 2018 centenary and beyond, the history of the First World War has been continually written and rewritten, studied and contested, producing a rich historiography shaped by the social and cultural circumstances of its creation. Writing the Great War provides a groundbreaking survey of this vast body of work, assembling contributions on a variety of national and regional historiographies from some of the most prominent scholars in the field. By analyzing perceptions of the war in contexts ranging from Nazi Germany to India’s struggle for independence, this is an illuminating collective study of the complex interplay of memory and history.
OPTIMIZING THE GERMAN WORKFORCE
Authors: Meskill David
Published: January 2023

During the twentieth century, German government and industry created a highly skilled workforce as part of an ambitious program to control and develop the country’s human resources. Yet, these long-standing efforts to match as many workers as possible to skilled vocations and to establish a system of job training have received little scholarly attention, until now. The author’s account of the broad support for this program challenges the standard historical accounts that focus on disagreements over the German political-economic order and points instead to an important area of consensus. These advances are explained in terms of political policies of corporatist compromise and national security as well as industry’s evolving production strategies. By tracing the development of these policies over the course of a century, the author also suggests important continuities in Germany’s domestic politics, even across such different regimes as Imperial, Weimar, Nazi, and post-1945 West Germany.
Debugging procedure of the replica class errors in the production knowledge bases
Authors:   State University of Telecommunications, Pavlenko M. A.
Published: January 2023

The problem of detecting errors in the production knowledge bases of knowledge - oriented information systems that arise at the stage of formation of the knowledge base by experts is considered. It was determined that such errors related to the conflicting opinions of experts and/or limited (imperfect) description of the subject area. There was analyzed approaches for their debugging. Ways to improve existing approaches for debugging static replica errors was shown. Possible ways of applying the obtained solutions to debug errors "contradiction", "redundancy", "incompleteness" was shown. Solutions for expanding the formalized definition of static error of the production network, considering the requirements for the accuracy of information was suggested. The issues of the influence of errors of the “replica” class on the results of derivation according to the rules of the production knowledge base was considered. The possibility of applying the methods of graph theory to solve the problem of error reduction of the "replica" class is proved. An algorithmic structure for detecting and debugging errors of this class has been developed. It allows, in contrast to existing solutions, to detect duplicate vertices at each rank of the graph to which the production knowledge base is reduced. Software implementation for detection and debugging of static errors of incomplete, partial, and complete duplication was developed, using recursion, which allows to reduce the requirements for preparing an array of input data for processing. The obtained solutions meet the requirements of DSTU ISO / IEC 9126, DSTU ISO / IEC 14598 and consider the requirements of the series of standards Software Quality Requirements and Evaluation as the values of the vertices of the graph of the event tree. During problem solving process specifics of the LMS operation are considered, first of all formalizing possibilities in the various aspects of knowledge (aletic, dissociative, causal, diontic) and ensuring a given level of efficiency in finding solutions.
Improving the efficiency of processing big data using the distributed data analysis method
Authors:   State University of Telecommunications, Hordiychuk-Bublivsʹka O. V.
Published: January 2023

Various methods of collecting, storing, and analyzing information should be used to create efficient data processing systems. To solve the problem of finding the necessary information in large data sets, machine learning algorithms are used. Given that most modern large-scale information systems use a huge number of computing devices, it is much more efficient to use distributed data processing technologies. In particular, distributed machine learning is widely used, in which devices are trained on local datasets and send only results to the global model. This approach improves the reliability and confidentiality of data because user information remains on the same device. The article also presents an approach for the analysis of large amounts of information using the algorithm of Singular Value Decomposition (SVD). This algorithm allows both to reduce the amount of information, discarding redundancy, and to predict events based on the identified patterns in the data. The main features of distributed data analysis, the possibility of using complex algorithms for information analysis, and machine learning in such systems are identified. However, the algorithm of Singular Value Decomposition is quite difficult to implement given the distributed architecture. To improve the efficiency of this method in distributed systems, a special modified FedSVD algorithm is proposed. Based on this algorithm, user data is collected from different devices, but the ability to further protect them from possible interference or interception is added. The results of the work can be used in the design of systems for data analysis, increasing the reliability of the user information used, including in corporate information systems, financial or IT areas, etc. The proposed approaches can serve as a basis for the development of information technology for automatic provision of recommendations to users, prediction of emergencies in enterprises.
Analysis of stability of system of defence of information at acceptance of administrative decisions on enterprise in the conditions of destabilizing informative influence
Authors:   State University of Telecommunications, Hrebennikov A. В.
Published: January 2023

In the article the design of the system of defence of information is conducted at the acceptance of administrative decisions on an enterprise in the conditions of destabilizing informative influences. In basis a design is examined model of FitzHue-Nagumo, that designs relaxation vibrations and to the spike of sequence in the non-autonomous model of neuron excited.The aim of the study is construction of mathematical model of the system of defence of information at the acceptance of administrative decisions on an enterprise in the conditions of destabilizing informative influences and by means of that to carry out the quality analysis of the states of the system of defence of information. On the basis of studies undertaken an in-process the mathematical model of the system of defence of information was built at the acceptance of administrative decisions on an enterprise in the conditions of destabilizing informative influences, that gives an opportunity to find out the points of bifurcation, that determine as the proof states of the system of defence are so not proof that characterize vulnerability of the system of defence of information at the acceptance of administrative decisions on an enterprise. It is set that a review on destabilizing informative influence on the acceptance of administrative decisions on an enterprise is characterized the trust of public servant. Due to the set intercommunication between intensity of influence and trust, it was succeeded to build the mathematical model of the system of defence of information at the acceptance of administrative decisions on an enterprise, that gives an opportunity to carry out the quality analysis of the system of defence of information on the basis of points of bifurcations, that characterize the proof and unsteady states of the system of defence. Got analytical dependences of calculation of points of bifurcations, that depend on parameters that characterize defence of confidential information, integrity of information and condition of impossibility of blocking of access to information.
Dynamic solution for multiple question optimization
Authors:   State University of Telecommunications, Tkachenko O. M.
Published: January 2023

The problem of multiple query optimization is considered as a complete optimization problem, the input parameters for optimization are determined: queries, tasks, plans. Proposed and substantiated architecture of the system in which the DBMS with the query optimizer is used - a computer system in which one or more computers (information processing system, one or more client computers, control computer, one or more the number of database servers) are interconnected by the client network and the server network. The data processing system receives the primary request made by one of the client computers, creates one or more secondary requests and transmits them to the database servers, in the case, if necessary, performs links or data updates, as defined in the primary request, and then returns the resulting data to the computer of the client from which the initial request was made. The I / O processing module, query analyzer, query optimizer, query processing module, optimization controller, external memory device are the elements that make up the information processing module. The I / O processing module receives the request from the client computers and the control request from the control computer and responds to these requests. The query optimizer optimizes the query using the query tree generated by the query analyzer, and develops a procedure for a series of operations (query execution plan) to obtain the results of query processing. The query processing module executes the query execution plan developed by the query optimizer. The order of execution of elementary requests which provide the minimum time for one, two and three processors is developed. A comparison of multi-request execution time with joint and incompatible processing depending on the number of processors is presented. The minimum execution time of the query can be achieved by executing elementary queries in the appropriate order, determined by the condition of order.
Structure of the shared data environment of the enterprise with critical infrastructure
Authors:   State University of Telecommunications, Zamriy I. V.
Published: January 2023

The method of creating a shared data environment of the enterprise with a critical infrastructure for integrated automated enterprise management systems is based on a systems approach, which includes a formalized description of many production and business processes; material resources and facilities involved in the operational management of production and its design and technological training. This space provides conditions for the production, distribution, transmission, processing, storage and use of information in all necessary areas of its functional purpose while ensuring very high degrees of reliability and reliability; reengineering of business processes of operational management; transition from function-oriented to process organization of enterprise management; business process management of operational planning; description, visualization and standardization of the electronic structure of the product; technical preparation of production using the electronic structure of the product. The introduction of a single information space allows to provide a number of advantages in addressing security and operation of the enterprise, in management decision-making processes, in identifying and minimizing enterprise risks. The proposed structure of a single information space of the enterprise is developed in accordance with the concept of CALS and provides integration of software and hardware systems using data sources and receivers, which are software products for various purposes. The paper investigates the conditions of organization of an enterprise with critical infrastructure and its information space, as well as the structure of a shared data environment of an enterprise with critical infrastructure with a set of databases based on an object-oriented model.
Information system of analysis of anthropogenic influence on the condition of forest plantations
Authors:   State University of Telecommunications, Shpuryk V. V.
Published: January 2023

Remote sensing of the Earth is a new and modern tool for studying the climatic and geographical situation in the world. In recent years, modern satellite systems have been launched to obtain multidimensional images of the earth's surface with high spatial diversity, and are used in many areas: monitoring of marine objects, forest lands, monitoring and forecasting of crops, disaster monitoring, climate research and more. In recent years, the intensity of forest fires, which is due to climate change and anthropogenic factors, is growing in number and area in Ukraine. Accordingly, the share of fires in the forestry fund, which need to grow new forest, is increasing. The number of cases of illegal deforestation has also increased in recent years. All this is irreparable damage to the environmental situation of our country. The development of space remote sensing and geographic information systems allows the development of new effective methods for assessing the state of forests. The forest cover of Ovruch district of Zhytomyr region was analyzed. This information system uses data from space images taken by the Landsat 5 and 8 satellites. In order to analyze the forest cover of the study area, a thematic map of the forest cover of Ovruch district was created and analyzed. The Bayesian classifier was chosen to classify the breed composition from space images. 7 species of tree species in the forest were identified, among which the largest area is occupied by pine. The territory where there are no forest plantations on the territory of the forest is singled out. Also, for the qualitative analysis of forest cover, the forest cover of this area was analyzed by the number of trees for several decades (1999, 2009 and 2019) for each species separately. All these results are presented graphically.
Improvement of information technology to increase the functional stability of the network using graph theory
Authors:   State University of Telecommunications, Ilyin O. Yu.
Published: January 2023

Improvement of information technology for increase of functional stability of a network by means of the theory of graphs is offered and the geoinformation system of monitoring of a condition of a network on the basis of the theory of stability is developed. The essence of improving information technology is to ensure constant access of users to the network. The work uses the construction of a network based on graphs, consisting of nodes and communication lines between them using a geographic information system for network monitoring. With the development of information technology, geographic information systems have emerged that provide management and display of spatial data. The use of GIS leads to an increase in the number of users of these systems, which increases the amount of information transmitted by networks. The main factor of GIS is fault tolerance - a property of the system that allows it to continue to work in case of error. The effective operation of the network depends on the resistance to external and internal factors affecting the network. Functional stability is determined by the timely redistribution of resources between nodes in order to perform their main tasks during a given time interval. An analysis of existing methods has shown that the methods have a rather complex implementation algorithm and calculation for path connectivity. This does not allow you to detect the problem quickly and provide access to the network in a short time. A monitoring system has been developed that will allow timely detection of breakdowns on the line, report it, and transfer the signal to other lines and nodes. The objectives of the development are: monitoring the functional stability of the network, fault reporting, finding new optimal ways to transmit signals. The created system provides the possibility of reliable network operation at all times. The system contains all the necessary toolkit for a specialist who will work with the application.
Diagnosing the start of a slow HTTP DDoS attack based on two-parameter traffic correlation analysis
Authors:   State University of Telecommunications, Savchenko V. A.
Published: January 2023

The article investigates the problem of detecting slow DDoS attacks based on network traffic analysis. Detecting a slow HTTP attack is a significant challenge because the attacker's behavior can mimic that of a legitimate user with slow resources. The authors proposed a four-zone attack detection architecture based on the analysis of two parameters: the number of connections to the server and the average client response delay time. A technique for detecting slow DDOS attacks based on correlation analysis and parameter forecasting is proposed. The author's approach uses an original two-parameter correlation analysis model based on the number of connections and the average real delay in the network. An algorithm for detecting a slow DDoS attack based on the prediction of two parameters has been developed. These parameters are used both for analysis and for short-term prediction of traffic behavior. The forecasting algorithm uses the method of calculating the posterior trajectory of the time series depending on a priori statistical observations. Prediction of user behavior parameters allows early detection of slow DDoS attacks based on an algorithm for searching for unknown future values for a time series of parameters. Using the relative values of NC and ARNL as prediction parameters makes it possible to build a flexible recognition system adapted to the specifics of a particular system. Simulation of the two-parameter algorithm for detecting slow DDOS attacks based on prediction was carried out and its effectiveness was evaluated. The proposed method is a combination of artificial intelligence and statistical analysis and uses a self-learning algorithm with sufficient attack statistics. Experimental results show that the method is suitable for early detection of attacks such as Slow HTTP Headers, Slow HTTP Body, Slow HTTP Read. Simulation of traffic parameters confirms the method's ability to detect slow attacks at different time intervals, since the accuracy of the forecast depends on the timeliness of the observations. With sufficient statistics of observations, the deviation of the forecast curve can be less than 5%.
Detection of traffic anomalies in the information systems of organizations using Machine Learning methods on the base of algorithms for forecasting category fields
Authors:   State University of Telecommunications, Haidur G. I.
Published: January 2023

The article examines the problem of detecting anomalies in the network traffic of information systems of organizations. Detection of anomalies in network traffic will allow to determine the hidden malicious activity of the data obtained on the basis of protocols that collect statistical data of the network traffic of the information system. This, in turn, will allow you to reduce the load and configure the attributes that will be used to monitor and analyze network traffic. The authors proposed the network traffic anomaly detection architecture, which is divided into functional levels. Protocols were analyzed to collect statistics, namely the Net Flow/IPFIX protocol, which provides comprehensive information based on packet headers. To process and analyze the received data, the authors developed a model for detecting anomalies in the traffic of the information system. The anomaly detection model uses statistical data for their further processing, as well as the possibility of storing data in a repository. All received data is filtered to detect malicious processes, transferred and stored in the repository of the attack database with the possibility of creating warnings and identifying the attack. For the specified model, the use of Machine Learning based on methods of predicting categorical fields is proposed. The work used a dataset with firewall data, which contains information on the number and size of transmitted and received packets of packets, data on the use of malicious software. Using the method, an experimental study of the data was conducted to predict the presence of malicious software in them. The method of forecasting categorical fields using Logistic Regression, SVM, Random Forest Classifier and other classification algorithms was investigated. Based on the obtained data, a confusion matrix was built, which allows to estimate the error of the algorithms.
Analysis of methods of researching the productivity of computer networks
Authors:   State University of Telecommunications, Skakun M. R.
Published: January 2023

The development of computer technologies gave an impetus to the emergence of powerful computer networks for the exchange of production data. The architecture of new computer networks has changed according to the requirements of distributed applications. The owners of modern computer networks are reviewing the strategy of forming networks from production, and the developers of network software products are forced to pay great attention to the productivity and efficiency of the network. Computer network delays are measured in hundredths, sometimes thousandths of a second. However, such minor delays can greatly slow down users when repeated network operations. Today, many organizations face a problem related to the implementation and adaptation of continuous operation software in the structure of the corporate information system. This type of work requires that the network infrastructure and software can support a significant amount of client-server I/O operations. Implementation of one or another information system without careful consideration of network software properties can lead to inefficient implementation of the project, large temporal and financial losses. Thus, the task of applying modern methods of analyzing the performance of computer networks of corporate information systems to increase the efficiency of distributed computing operations in networks is relevant today. Therefore, this article is devoted to the analysis of modern trends in the development of telecommunication systems and computer networks, the reasons that cause delays when working with distributed applications in networks, and their impact on the performance of networks in general. From the existing variety of software and hardware components included in the computer network, the main objects of research are selected: computer, network communication channel, active network equipment, software product.
High-performance wireless network based on IEEE 802.11 flexible architecture
Authors:   State University of Telecommunications, Shmigel B. O.
Published: January 2023

Wireless networks have a key role in operational deployment, mobility, the flexibility of network organization and the variety of possible applications, in many cases being the only economically justified solution. Based on the above, for the deployment of wireless networks, the correct theoretical design of the wireless network is an important issue: the required number of devices, their characteristics, placement, energy characteristics of channels, distribution routes and coverage areas, etc. Correct theoretical analysis will ensure error-free construction of the network for the successful implementation of the tasks and will not lead to the need to attract additional material costs. One of the key tasks of wireless communication construction is a reliable assessment of the energy characteristics of a wireless communication channel. Modern global manufacturers of telecommunications equipment build both backbone equipment and equipment to cover WLAN (wireless local area networks) areas, based on IEEE 802.11 standards. One of the most modern standards of the IEEE 802.11 group is the IEEE 802.11ac standard, which is characterized by several improved technical characteristics compared to its predecessor IEEE 802.11n and older versions. That is why the task of evaluating the performance of modern wireless communication equipment based on IEEE 802.11ac standards and analyzing the evaluation of the energy characteristics of the communication channel to predict the parameters and performance characteristics of a point-to-point, point-to-multipoint or other wireless transmission systems within a certain wireless communication network. The following results of solving this problem are presented in this paper: – theoretical evaluation of the energy characteristics of the wireless communication channel. – laboratory studies of wireless communication equipment of the 802.11ac standard based on simulating a communication line using attenuators. – verification of the results of laboratory studies in field conditions based on the model for assessing the quality of communication in a wireless channel created based on the 802.11ac standard.