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Subject and Purpose. Results are presented of the solar corona investigations performed with the world famous Ukrainian radio telescopes. The work has been aimed at offering a consistent review of recent achievements in observations of a variety of low-frequency radio emissions from the Sun. Methods and Methodology. The studies of the quiet (thermal) and sporadic (burst-like) radio emissions from the Sun have been carried out with the decameter-wavelength radio telescopes UTR-2, GURT and URAN-2. Specific features of the low-frequency solar radio emissions from a variety of sources are presented, with characterization of the optimized techniques that were applied in each case for evaluating physical parameters of the corona in the areas of decameter-wavelength radio wave generation. Results. The analysis of temporal, frequency and spatial characteristics of solar radio emissions has allowed suggesting a number of models for the coronal electron density distribution, and evaluating magnetic field strengths in the corona. Also, our experimental results have proven to be consistent with the observational data obtained in different frequency ranges and with the use of both ground based and space-borne instruments. Conclusions. The radio observations performed with Ukrainian radio telescopes have permitted studying, with high temporal, frequency and spatial resolutions, solar radio frequency emissions from various localized sources. Along with the large effective area and high sensitivity of the antennas, this permits application of a wide range of methods and tools aimed at detecting and analyzing solar bursts, of both strong and weak intensity, against the background of terrestrial interference of natural or artificial origin.

In this work, four waste paper composites were studied in terms of several photon interaction parameters over the energy region from 0.015 to 15.0 MeV. The waste paper and natural rubber (WP/NR) composites of different densities ranging from ρ = 0.894 to 1.16 gm⋅cm-3 were used for shielding radioactive rubble at different time period stages. Some additives were also used including high-abrasion furnace black, paraffin wax, B4C, as well as magnetite. The deduced parameters of photon interaction: equivalent atomic number Zeq, exposure buildup factor and energy absorption buildup factor have been studied as a function of incident photon energy, WP/NR elemental composition, and for penetration depths, up to 40 mean free path. The Zeq numbers have shown slight variation over the selected incident energy range and buildup factors were found to be modest at low and high photon energy meanwhile their values increase widely over the intermediate energy region. In addition, kerma relative to air for photon energies from 1 to 20 MeV were computed and show dependence upon equivalent atomic numbers. In this work, it was clear that filled samples offer better shielding capabilities than unfilled ones. The obtained data could be useful for radiation physicists and scientists in estimating the γ-irradiation received after applying such shields.

Purpose. To substantiate the breakdown mechanism of capacitor paper on the basis of numerical-field models with segmented cross-sections of cylindrical volumes of air and water, and also use the proposed models to determine the breakdown strength of air in micron-sized gaps under normal conditions. Methodology. The model bases on a finite element solution to an electrostatic problem in a volume of capacitor paper consisting of cellulose and pores with air and water. First, the possible scenarios for the growth of breakdown in capacitor paper are analyzed and to the conclusion is made, that complete breakdown developed from a partial breakdown in the air cavity. A brand of capacitor paper is chosen in such a way that when its thickness changed, the breakdown strength of the electric field changed over a wide range. Then, for the paper with the lowest average electric field intensity the possibility of explaining the complete breakdown by the breakdown of air segments on the basis of the Paschen dependence is checked. Further points of the obtained dependence by constructing models of papers of the same brand and a different thickness under the assumption of the similarity of electrostatic fields are determined. As such a criterion, the constancy of the equivalent effective permittivity are taken. Results. The dependence of the breakdown strength of the air in the range of 1.36...5.54 μm under normal conditions is determined. The obtained relationship is between the Peschot and Taev curves. Originality. For the first time, the possibility of indirectly estimation the breakdown strength of an insulating material using an electrostatic field model is indicated. Practical value. The proposed method for the numerical calculation of the breakdown voltage of air inclusions in the presence of water inclusions in the thickness of solid insulation can be applied to other types of solid thin-layer insulation.

Background. The development of technologies for obtaining materials from plant raw materials, the use of which improves the consumer properties of cardboard and paper products and does not pollute the environment with harmful substances from synthetic polymers, is an urgent problem of our time. Objective. The purpose of the paper is to obtain pulp and nanocellulose from reed stalks by environmentally friendly methods and apply nanocellulose to improve the quality parameters of paper for packaging food products on automatic machines. Methods. To obtain pulp from reed stalks with a minimum residual content of lignin and minerals, two processing stages were used: alkaline extraction and organosolv cooking at a temperature of 97 ± 2 °C. Nanocellulose was obtained by the oxidation of organosolv reed pulp with 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) in the TEMPO / NaBr / NaClO system, which is more environmentally friendly than acid hydrolysis. The resulting nanocellulose was applied to paper samples from waste paper and sulphate unbleached pulp at a consumption from 1 to 3 g/m2. Results. Organosolv pulp was obtained from reed stalks with a residual lignin content of 0.53 % and an ash content of 0.045 %, which was used to obtain nanocellulose. The resulting nanocellulose particles have a transverse size in the range of 5–20 nm, a length of up to several micrometers, and the tensile strength of nanocellulose films is up to 60 MPa. It is shown that the application of nanocellulose to the surface of the samples increases the breaking strength and breaking length, and reduces the surface absorbency of paper. It was determined that with a nanocellulose consumption of up to 3 g/m2, paper samples have indicators that meet the requirements of the standard for paper for packaging food products on automatic machines. Conclusions. The use of nanocellulose from reed stalks as a hardening substance for paper production will allow replacing environmentally harmful polymer additives and up to 50 % of more expensive softwood pulp with waste paper, while maintaining paper quality indicators at the level of standard requirements.

In recent years, concrete in the construction industry has rapidly increased worldwide, including developing countries like India. The raw materials required to produce such a quantity require huge depletion of natural resources. On the other hand, disposal of paper waste, fly ash, and plastic waste is one of the biggest problems faced by many countries, including India, the amount of waste collected and recycled is less compared to disposal quantity. The use of these wastes in concrete reduces the disposal of waste in nature. In this experiment work, the use of these wastes in the concrete has been studied. Preliminary tests like specific gravity, fineness modulus, and water absorption have been carried out on the materials. Various mix designs are prepared by partial replacement of cement with fly ash and paper pulp, and sand is completely replaced with the quarry dust, and coarse aggregate is replaced with shredded plastic waste to create sustainable concrete. A comparative study on the properties like slump cone, the weight of the cubes, compressive strength and split tensile strength, and feasibility of such concrete has been carried out. Results indicated that the weight of cubes started to decrease with the addition of waste. Compressive strength and split tensile strength show that the strength started to fall with the addition of plastic. The cost of concrete decreased with the addition of waste. 5 % of plastic waste in concrete and 3 % of paper pulp, and 5 % of fly ash is considered the optimal replacement percentage.

One of the most energy-intensive processes is the drying process. Therefore, an important task is to reduce heat consumption for drying. Various ways to improve the drying devices of paper and cardboard machines are identified. The main disadvantages of these improvements are given. The limiting factor of heat transfer from water vapor to paper is established. The dependence of thermal resistance on the thickness of the condensate layer is given. The authors have developed a new design for condensate drainage. The developed design allows installing movable siphons without replacement of steam inlet heads of the old type (for fixed siphons) with their insignificant modernization and cutting of an annular groove inside the drying cylinder. This will ensure a minimum level of condensate and eliminate the possibility of suction of steam into the condensate return system. Additionally, this will reduce thermal resistance, heat loss, and reduce energy consumption for paper drying as a whole.

New Ukrainian and world realities set new tasks for the higher educational establishments, which are related to the search for new, modern methods that allow to increase the effectiveness of training. Currently, topical are the issues of not only professional but also the personal development of the student forming the priority in the implementation of educational activities in universities, preparation for future professional activities, as well as for successful interaction in society. The concept of «individual social competence» is an important factor in creating a system of educational process which takes into account aspects of professional development, and at the same time the peculiarities of the formation of the student personality. The author analyses the concept of «competence», considers the key competences for lifelong learning, identified by the European Parliament and the Council of the European Union, including social competence, studies the scientific achievements of Ukrainian and foreign scientists, including G. Gedviliene, H. S. Han, K. M. Kemple, U.P. Kanning, M. Horenburg, G.W. Ladd, H. K. Ma, K. Monahan, M. Monnier, O.V. Varetska, N.I. Hlebova, D.V. Hubareva, O.I. Hura, M.O. Doktorovych, I.B. Zarubinska, O.O. Subina, V.M. Shakhrai. They explored different aspects of social competence of different age categories. The author concludes that, despite different interpretations, all scientists agree that social competence is an acquired skill, it can be formed and developed throughout life. It was also determined that the developed social competence determines the status of the individual in society, it affects the success in professional activities. The high level of social competence allows a person not only to be realized in professional activities, but also to influence the processes in society, which in turn determines its stability. The author’s definition of the concept of «individual social competence» is given in the paper; the author concludes that social competence is an integrated ability that contains other competencies: spiritual, civic, communicative, linguistic; the concept of social competence is closely related to professional competence, without the successful interaction of the individual with society it is impossible to acquire the skills and abilities inherent in a qualified specialist. Thus, an important task for modern higher education is the formation and development of social competence of students, which is the key to successful implementation of the future specialist in professional activities. The educational process should be aimed at forming a system of knowledge about interaction in society, understanding the system of social values, ability to cooperate in society, the ability to communicate constructively, because only a socially competent person can.

Maintaining of the proper predetermined paper pulp consistency on the different stages of the paper or cardboard manufacturing process significantly affects on quality and self cost of manufactured articles. The improvement of precision and repeatability of the paper pulp viscosity and consistency measurements is relevant to paper industry. Objective of the work is to improve the industrial-type paper pulp rotational consistometer. A new method for measurement of paper pulp concentration by means of a rotational viscometer was suggested which enables determining the flow consistency index K and flow behavior index n in the Ostwald-de Waele power law. The influence of the following torques on the measurement results is eliminated thanks to the new method: the friction torque in the seal of the sensitive element, the friction torque in the bearings of the shaft and the torque created under the influence of the flow with distorted flow speed profile. This is achieved by measuring the torque which acts on the sensitive element approaching the selected frequencies of sensitive element rotation both from the lower and higher frequencies. The mean torque value is calculated based on the obtained values. The measurements are conducted for two sensitive element rotation frequencies adjusted in advance. The frequency of sensitive element rotation is changed by means of a frequency converter. It is shown that by using two different rotation frequencies of the sensitive element of a rotational viscometer it is possible to define the flow consistency index and the flow behavior index. Paper pulp viscosity and consistency is defined on the basis of these two indexes. It is also suggested to average the results of viscous friction torque measurement approaching the rotation frequency of the viscometer sensitive element to the working frequency chosen for measurement from the lower and higher frequency ranges. By averaging the results of such measurement the friction torques in sealing and bearings supporting the sensitive element shaft are compensated. By changing the rotation direction of the sensitive element and by further averaging the obtained results it is possible to eliminate the influence of the asymmetrical distribution of paper pulp flow speed in the pipeline. This improves accuracy of the paper pulp consistency measurement.

Background. Development of technology for obtaining peracetic pulp from oat straw and its use in the production of one of the paper mass types. Objective. Determination of peracetic cooking technological parameters’ optimal values for oat straw peracetic cellulose quality indicators. Methods. The oat straw cooking was carried out with peracetic acid at 95 ± 1 °C from 90 to 180 min for hydromodulus 8:1 and 7:1, using a sodium tungstate catalyst. To determine the oat straw peracetic cellulose mechanical indexes, laboratory samples of paper weighing 70 g/m2 were made. Results. Technological parameters’ optimum values (temperature, cooking duration, hydromodulus, hydrogen peroxide and acetic acid concentration) for the oat straw delignification process were established. It is shown that the sodium tungstate catalyst addition to the cooking solution at a rate of up to 1 % of the plant raw material weight helps to reduce the lignin content in cellulose to 15 %. A diagram of the cellulose yield dependence on its residual lignin content for various methods of non-wood plant material species delignification is constructed. The high efficiency of the peracetic method for obtaining cellulose from non-wood plant raw materials, in particular from oat straw, has been confirmed. It is determined that the obtained peracetic cellulose from oat straw has high mechanical indexes. Conclusions. Oat straw peracetic cellulose can be used for the production of paper and cardboard mass types, in particular wrapping paper.

Lipoedema is a chronic progressive disorder of adipose tissue leading to an enlargement of lower extremities. It is considered to be rare; however, the prevalence of the disease is underestimated because it is commonly misdiagnosed as obesity or lymphedema and the general awareness is poor. The etiology of the disorder is considered to be multifarious, including genetic inheritance, hormonal imbalance and microcirculation alterations. Diagnosis is mainly based on medical history and physical examination. Management of lipoedema is focused on reducing the symptoms, improving the quality of life and preventing further progression of the disease. The aim of this paper is to raise the awareness of the disease and provide appropriate clinical guidance for the assessment of lipoedema. We searched through the PubMed/MEDLINE database and took into consideration all of the results available as of 6September, 2020 and outlined the current evidence regarding lipoedema epidemiology, etiology, clinical presentation, differential diagnosis, and management. Better understanding of lipoedema is crucial for establishing an early diagnosis and a proper treatment, which in turn will reduce the psychological and physical implications associated with the disease.

Oil extracted from mobile phone waste recharge scratch cards paper by thermal pyrolysis was investigated. The oil was characterized by its physical, chemical, and functional groups present. The physicochemical characteristics of the oil determined are density 900 kg/m3, viscosity 1.5 mm2s-1, acid value 1.122 mgKOH/g, saponification value 98.175 mgKOH/g and iodine value 22.84 gI2 /100g. The pour point and flashpoints are -15 °C and 90 °C respectively. The Fourier Transform Infrared (FTIR) and Gas Chromatography-Mass Spectroscopy (GC-MS) revealed the presence of aldehydes, ketones, carboxylic acids, esters, alkenes alkanes, ethers, and phenol. This indicates that the oil has industrial applications in chemical, pharmaceutical, and biodiesel production.

A visual test method has been proposed for the evaluation of the gold content. It is based on the linear dependence between the length of the colored zone on an indicator paper and gold(III) concentration. Indicator paper was covered by a polymer film and was in contact with the solution tested along one edge during analysis. It was impregnated by 3-phenyl-2,6-dimercapto-1,4-thiopyrone or by precipitate of its complex with copper(II). Besides Cu(II) can be replaced by the Au(III) ion tested in the composition of this complex. The concentration ranges for Au(III) determination were equal to 0.02−2 mg·L−1 or 4−590 mg·L−1, respectively, in the presence of excess of the transition and noble metals. It was demonstrated the effectiveness of the dynamic preconcentration of Au(III) for the subsequent colorimetric determination on paper filter for the concentration range 0.005–0.3 mg·L−1 (DL 0.02 mg·L−1) by using a sample volume of 10 mL. The developed procedures were successfully utilized for the determination of gold in synthetic mixtures, in auriferous quartz (RSD < 5%), and in ore from Zyryanovsk’s mine (Kazakhstan) with RSD < 8%.

Introduction. An important problem in power transformers resource prognosis is the formation of moisture dynamics trends of transformer insulation. Purpose. Increasing the accuracy of power transformer insulation resource assessment based on accounting of moisture dynamics in interrelation with temperature dynamics. Working out of moisture dynamics model in paper insulation-transformer oil system in conjunction with thermodynamic model, load model and technical maintenance model. Methodology. The mathematical models used for describe the moisture dynamics are grounded on nonlinear differential equations. Interrelation moisture dynamics model with thermodynamic, load and technical maintenance models described by UML model. For confirming the adequacy of model used computer simulation. Results. We have implemented the model of moisture dynamics in power transformers insulation in interrelation with other models, which describe the state of power transformer in operation. The proposed model allows us to form detailed trends of moisture dynamics in power transformers insulation basing on monitoring data or power transformers operational factors simulation results. We have performed computer simulation of moisture exchange processes and calculation of transformer insulation resource for different moisture trends. Originality. The offered model takes into account moisture dynamics in power transformers insulation under the influence of changes of the power transformers thermal mode and operational factors. Practical value. The offered model can be used in power transformers monitoring systems for automation of resource assessment of oil-immersed power transformers paper insulation at different phase of lifecycle. Model also can be used for assessment of projected economic efficiency of power transformers exploitation in projected operating conditions.

Annotation: In the article the paper of three copies of Krakow editions of Polish Herbal 1595 by Marcin of Urzędów, from Lazar printing house is analyzed. In the copies of the edition seven different types of paper were found. This paper was produced by six paper-mills nearby Krakow, and it is typical for Krakow paper market of that time. Paginal location of watermarks, their quantitative and percent composition are defined. Also the exploration includes leaves of one of the copies In 74, restored in 19th century. Instead of missed leaves the paper of the first part of 16th , 17th and 18th century was used to complete the copy.

Introduction. The moral and physical deterioration of medium voltage power cables with phase and zone paper-impregnated insulation requires implementation of quality systems and reliable nondestructive electric diagnostic. Informative indicator of the insulation is the time decay curve of the charging current. It reflects the processes of accumulation of space charges (absorption). The measurements are carried out the 15th since the second direct voltage supply, then – on the 30th and the second on the 60th second. The ratio of the parameters measured in these times gives the dimensionless criteria – absorption coefficients. Three measurements are made at different times, provide a more complete picture of the state of insulation than the measurement of the value of steady leakage (conduction-through), adopted in conventional prevention trials. Purpose. Research and testing methods of diagnostics of power cables with paper-impregnated insulation by absorption and phase characteristics of the belt insulation based on the total measurements. Methodology. A procedure for determining the individual characteristics of phase and zone paper-impregnated insulation based realized on the use of the equivalent circuit of a three-core cable in the metal shell and solved of an over determined system of linear algebraic equations by least squares. Results. The proposed method allows determining the absorption characteristics of the individual phase and zone insulation medium voltage power cables in the overall metal shell at a direct voltage. Individual characteristics reflect the characteristics of cables and allow a greater degree to assess the degree of aging of each of the components of paper-impregnated insulation. Originality. Regardless of the cable connection diagrams probing electric field grabs as the phase, and zone insulation. The cumulative nature of the measurement leads to the fact that the differences in the properties of insulation components are smoothed: the aggregate results of the measurements do not differ for the different schemes of the same type. The individual characteristics of isolation, defined on the basis of the proposed method are more differences than total, indicating that non-symmetrical modes of operation of the cable. Practical value. The values of individual characteristics power cables 6 kV are 3 times more total, because of what their direct measurement may be a problem. The total resistance of several insulation spaces connected in parallel, behind the individual. Smaller values of insulation resistance are measured more easily, especially on short samples cables.

In the optics of attention was the story of the Japanese writer Komatsu Sake "Paper or hair", written in 1963. According to the content, the loss of paper changed the usual way of life of people, becoming a source of existential fears. As we believe, the artistic narrative anticipates the events of our time associated with the spread of the coronavirus infection COVID-19. An artistic description of the situation by a Japanese writer, a phenomenological immersion in reality and theoretical reflections by M. Heidegger's work on the existential of fear helped to reconstruct the psychological States of people in the context of a pandemic and to identify the structure of fear. In modern life, fear manifests itself in three aspects: before-than fear, fearfulness and about-than fear. As a result of the all-embracing nature of fear, the fearogenicity of being is born, which violates the stability of the individual's existence, its being in, dwelling in, and mastering with. The above leads to the individual's awareness of the direction of life towards death, which forces him to adapt to new conditions. As a support of the personality in its opposition to fear, we can call hope and effective manifestations that perform the role of care.

The article examines the scientific work of one of the prominent representatives of the 20th century Azerbaijani piano performing school, Honored Art Worker, Professor Nigar Usubova (1914–1994). N. Usubova devoted an important part of her life to pedagogical activity, raising a generation of talented pianists. She made an exceptional contribution to the development of the Azerbaijani piano school and the definition of its future directions. N. Usubova’s pedagogical principles are reflected in her dissertation work and methodical manual. As it is known, N. Usubova studied in the class of A. Goldenweiser and wrote these scientific works under the guidance of the prominent pianist. An important part of these scientific works is devoted to the study of A. Arensky’s piano creative activity. Here, the musician touched upon the features of the composer’s piano performing, as well as the characteristic features of his music. The research also provides performing characteristics of the works analyzed and covering various genres. The purpose of the research is to study the fundamental results and main performing principles in the scientific works dedicated to A. Arensky’s piano creative work by Nigar Usubova, a brilliant representative of the Azerbaijani piano school of the twentieth century. In these scientific research works, N. Usubova touched upon the features of the prominent composer’s piano creative work, performing principles, circle of images; moreover, analyzed the form, genre, tone and other aspects and conducted research on the background of characteristic features of Russian music. We would like to bring to your attention that N. Usubova’s scientific works have not been published. This raises the scientific significance and relevance of the topic more. These scientific works are the first research work dedicated to the study of A. Arensky’s piano music in the Azerbaijani science of music. The research methodology is based on analytical and theoretical analysis, as well as on the source research method (work with archival materials). The main principle is the study and analysis of the fundamental results obtained by N. Usubova in the study of piano music by A. Arensky The scientific novelty of the research is that for the first time the scientific works of the outstanding pianist Nigyar Usubov are studied, their scientific significance, as well as the issues reflected in those works, are revealed. We would like to bring to your attention that these scientific works reflect N. Usubova’s method of approach to A. Arensky’s piano pieces as a pianist. For this reason, these scientific works are a valuable recommendation for every pianist who turns to A. Arensky’s piano creative work. Conclusions. Nigar Usubova is the author of two scientific works and her scientific creative activity is devoted to the definition of performing features of A. Arensky’s piano creative work. Each of these scientific-methodical works was written under the guidance of a prominent representative of the Russian piano school, pedagogue A. Goldenweiser. In these works, N. Usubova worked on A. Arensky’s creative work in a comprehensive and detailed way. According to the author, A. Arensky’s piano creative work is characterized by the clarity of form and texture, the richness of melodic material, which brings him closer to Tchaikovsky’s chamber music. Although the composer prefers miniature forms in his piano creative work, it is also possible to find virtuoso pieces, etudes, scherzos and capriccios. These works, in particular, influenced the formation of S. Rakhmaninov’s and A. Scriabin’s creative activity. The main characteristic features here are polyphonism, polymelodism and polyrhythmics of the piano texture. Simultaneously, N. Usubova thoroughly studied the influence of Western European composers on the formation of A. Arensky’s creative activity.

Admission Dysfunctions of the lumbosacral spine are among the most common problems related to the movement of contemporary society throughout the world, and its incidence increases with age. In recent years, increased interest in the issues fascia, which until recently was neglected in the etiology of low back pain. One of the therapeutic options that can be applied in the case of chronic pain syndrome lumbar-sacral spine techniques are easing myofascial (ang. Myofascial release, MFR), which is one of the latest methods in the field of manual medicine. Objective of the work The aim of the work was overview AD recently published study on the effectiveness of techniques easing myofascial pain in chronic lumbar-sacral spine. Material and methods To find the current investigate research (publications of the last 5 years) dedicated to MFR in the treatment of chronic pain, lumbar-sacral spine searched the following databases: PubMed, PEDro (Physiotherapy Evidence Database), ScienceDirect and Academic Search Premier. The following keywords: myofascial release, myofascial release therapy, myofascial pain, chronic low back pain. Results 9 qualified to review the studies investigating the effect of loosening myofascial pain and range of motion, functional limitations, muscles, as well as the quality of life in people with chronic pain lumbosacral spine. Conclusions The results of this review show that there is little research on the MFR employs treat ailments low back pain lumbar - sacral. Based on the studies included in this review can be concluded that the MFR can be an effective treatment for back pain lumbar - sacral, but there is a need for further research with a well-developed research procedure that will allow the standardization of this therapeutic method.

The conducted study has shown problems with electronic documents already in the moment of their accession, as well as arrangement and description, storage and providing access to them in the archive. It turned out that, unfortunately, electronic documents are treated only as an addition to paper versions of materials. The study uses method of document analysis (including electronic document), as well as a survey – a questionnaire. The object of the study was a private papers of Professor Stanisław Gorgolewski.

The problems of the creation of the basic reasons of Ukrainian nation’s political identity in the context of cultural and political dimension have been revealed in the article. It has been found that Cyril and Methodians understood the reasons of political division, which had historical and spiritual background. It has been shown that members of Cyril and Methodiy’s company tried to determine the variations of directions in the development of national and political unity and to determine the Ukrainian national - cultural priorities. They argued that the Ukrainian mentality had been formed on the basis of the following dominant principles: respect to the family, esthetical love to their native land, rational and ethical attitude and respect to human life. It has been indicated, that Cyril and Methodians had proven the idea about the state of the national culture, which had transformed into the global culture through Russian culture, although Ukrainian and Russian culture had perceived differently the importance of global processes. Big attention has been paid to the fact that free Ukrainian people had the experience of struggling for the affirmation of present national character, they did not want to form unions that would destroy freedom. The achievements of Ukrainian national freedom have been described primarily in the implementation of the “freedom” of the individual. Statements of the human freedom being the need of self-expression inside the individual freedom by means of obtaining a sign of social freedom have been suggested. It can be provided when collectivism has no pressure on the will of the individual and cannot influence its intellectual potential. The emphasis has been referred to the fact that the psychology of self-defense is based on Ukrainian cultural achievements being the part of its national identity. The forms of language development, the construction of temples, traditional rituals of rural life have been developed. The “live” power laid in national and cultural achievements of Ukrainians as they borrowed the values from other cultures and adapted to their minds. This happened due to the fact that national culture was formed as a specific element of the current world culture and withstand the pressure of “great power.” It has been noted that Ukrainians contributed to the development of Russian culture, they dissolved this so-called Little Russian mentality in the Russian public sphere and popularized Ukrainian spirit. The impact of ideas of European Slavophiles Decembrists, Ukrainian philosophers to the attitudes of Cyril and Methodius has been reviewed. Theoretical and methodological basis to analyze the maturing political identity formed work of contemporary philosophers, political scientists, cultural studies, where they were identified and developed fundamental categories methodology regarding patterns of political thinking Ukrainian nation.

Refinement of the aging integral formula is proposed. A com-puter model of insulation wearing out is developed using refined formula. Computer simulation of power transformer insulation wearing out over the next ten years of life is carried out.

This paper discusses the latest data on the production of selected paper and paperboard, plastic, glass, wood and metal packaging. During the study period 2016-2020/2021, there was an increase in the production of selected paper and paperboard packaging compared to 2016. There has been an increase in the production of paper sacks and bags, cartons made of paper or paperboard other than corrugated and cartons made of paper or paperboard. Among plastic packaging, the production of plastic bags and sacks played a significant role and has been growing steadily since 2016. The production of glass packaging (clear glass bottles with a capacity of less than 2.5 liters for beverages and food) increased between 2016 and 2021. Flat pallets were the dominant product among wood packaging in 2020. The decline in box pallet production was significant not only relative to 2019, but also relative to 2016. In the group of metal packaging with a capacity not exceeding 300 liters, the highest production was recorded for barrels and similar containers for any material (excluding gas), made of aluminium. It reached 93228 tonnes in 2020 and was 2.4% higher than in 2019. The packaging market in Poland and worldwide has been gradually increasing its value over the past years. The production of packaging in Poland in the coming years should grow dynamically, although not as fast as before. Undoubtedly, today the biggest challenge for the packaging industry is the rising prices of raw materials, which can negatively affect the profitability and liquidity situation of manufacturers. In particular, the prices of plastics have gone up considerably, but the costs of pulp, metals, wood and glass are also increasing, so the raw material pressure is now affecting the entire packaging industry

Purpose: comparative analysis of the manifestation of morphological and functional indicators of taekwondo athletes aged 14–15 years. Material and Methods: The study involved 60 taekwondo athletes aged 14–15 years. Athletes’ qualification 1-2 category. At least 5 years of experience in Taekwondo WTF. The assessment of morphological and functional indicators of taekwondo athletes was carried out at the age of 14 and 15 years. Research methods: analysis and generalization of scientific, methodological and special literature, information on the Internet; anthropometric methods; index method; methods of mathematical statistics. Results: The average body weight of taekwondo athletes aged 14-15 increased by 16,5%, and body length by 4,7%. The indicator of chest excursion increased by 4,8%, carpal dynamometry indicators of the left hand increased by 15,2%, the right hand - by 15,3%. 33,6% of 15-year-old athletes are underweight in terms of body mass index, 2,9% are overweight; 14 year olds: 21,56% underweight, 13,7% overweight. Athletes aged 14–15 have a normosthenic body type. According to the constitution of the physique, 7,84% of 14 year old athletes have a strong physique, 15,68% have a good physique, 5,88% have an average physique, 27,45% have a weak physique, 43,15% have a very weak one. 12,12% of 15-year-old taekwondo athletes have a strong physique, 24,24% have a good physique, 9,1% have an average physique, 24,24% have a weak body, and 30,3% have a very weak body. 13,7% of 14-year-old taekwondo athletes have good physical development, 3,9% - average, 76,4% - weak 15-year-old athletes: 17,6% - good physical development, 14,8% - average, 67,6% - weak. Conclusions: The study of morphological and functional indicators is one of the important criteria for the training of taekwondo athletes, the use of indices allows you to move on to relative indicators, that is, to standardize anthropometric indicators and supplement them. This will contribute to the rational selection of means and methods of training athletes, taking into account their personal characteristics. Our research can be used in monitoring the functional state of athletes involved in taekwondo WTF.

The existence of tax havens is an integral phenomenon of the modern stage of the world economy development. They compete with each other on the basis of tax rates, privacy level, quality and speed of the service offered. Determining the impact of tax havens is now a rather pressing issue, deepening which has largely contributed to leakages of information, particularly the Panama Papers. However, the leaks of information from tax havens are not sufficiently covered in the research of both domestic and foreign scholars. The article is aimed at examining the impact of tax havens and the Panama Papers information leak on the world economy. The definition of tax havens and their scale in modern conditions of globalization economy is considered. In the systematization of scientific works the relatively different leaks of information from tax havens were compared and the largest of them was identified. The essence of the activities of Mossack Fonseca, the company that was the victim of the data leak, is disclosed. The dynamics of registered offshore companies within the framework of the Panama Papers leak are substantiated. With the help of a mathematical model, the authors computed a trend vector of movement of the number of companies, which are using the services of offshore zones. As a result of regression trend analysis, it was defined that the number of companies registered by Mossack Fonseca tends to grow (an average of 292 units annually). This indicates that, despite the publication of classified information, the popularity of tax havens continues to increase. The main intermediary countries, which are most popular in tax speculation, are provided. It is determined that the simplicity of formalization and registration of companies, the lack of control over subsidiaries of multinational business groups are key attributes of the activities of tax havens that contribute to their use to avoid paying income taxes and money laundering. The consequences caused by the activities of tax havens and information leaks from them have been formulated. The most important among them are: sanctions provisions and monitoring of offshore activities.

The role of macrophages in chronic periodontitis (CP) is essential, but not well understood. The purpose was a thematic analysis of the literature on contribution of M1/M2 macrophage subpopulations to the pathogenesis of chronic periodontitis, and methodology for macrophages study in order to define directions and approaches for further investigations. Our own research findings as well as papers for the topic by searching the electronic databases (the Google Scholar, PMC, PubMed) were analyzed. M1 macrophages can contribute to CP exacerbation, systemic inflammation enhancement, destruction of periodontal ligament, and inhibition of osteoclastogenesis. M2 macrophages are able both to develop tolerance influenced by LPS of periodontopathogens, and to enhance proinflammatory abilities. Experimental depletion of macrophages using clodronate liposomes can prevent the bone resorption. Influences on M1/M2 in CP with the purpose of treatment are not adequately investigated. Polarization of macrophages is regulated by a wide spectrum of recognizing receptors, cytokines, specific signaling pathways and genetic programs, some of which are used as phenotype markers of certain macrophages. The unique molecules for M1/M2 are absent. Phenotypic markers of M1 and M2 show overlap, so markers combinations are used depending on a purpose and type of macrophages or profile/combination of expressed genes. The article lists markers used in various studies for M1/M2 identification. Conclusions. Most of the data on the role of M1/M2 in CP was obtained using monocyte-derived macrophages in vitro and in animal models. This paper highlights the important role of M1 and M2 subpopulations of macrophages in the pathogenesis of CP in humans. The identification of predominant macrophage phenotypes remains elusive, as well as consequences of influences on them. Immunohistochemical methods are indispensable for human studies at the present stage due to availability of biopsy. A prospect for further scientific research is to study the role of M1 and M2 macrophages in CP pathogenesis in humans.

The purpose of the study is to determine the factors for increasing the representation of the Ukrainian scientific community in the international scientific community and raising the international scientific authority of Ukraine. Used Results of the annual G20 evaluation - the effectiveness of research in 2019, conducted by the Institute of Scientific Information (ISI), part of the Web of Science Group. The principles of introduction of scientometric methods of research of publishing activity of scientists in the international and Ukrainian scientific space are considered. Based on the processing of statistical material and the obtained quantitative estimates, a comparative analysis of the effectiveness of research in the G20 and Ukraine according to the Web of Science. In this area, some differences between Ukraine and countries that are world leaders in the organization of the research process are shown. Recommendations for increasing the representation of the Ukrainian scientific community on the Web of Science platform and raising the international scientific authority of Ukraine are offered.

The paper covers the activity performed at V.O. Sukhomlynskyi State Scientific and Pedagogical Library of Ukraine, which functions as a coordination, Хемчян І. Науково-методичне забезпечення діяльності мережі освітянських бібліотек ISSN 2224-9516 Наукові праці Національної бібліотеки України імені В. І. Вернадського. 2019. Вип. 56 scientific and methodological centre within the system of education libraries under the Ministry of Education and Science of Ukraine and the National Academy of Educational Sciences of Ukraine during the period from 2000 to 2019. Here are the main directions of scientific and methodical work performed in the library: methodical study of changes taken place in certain libraries as well as the system of education libraries in general; development of conceptual, organisational, administrative, regulatory and methodological documents; providing specialists of education libraries with methodological and advisory assistance (including remote help) on library work; expert-diagnostic visits to education libraries for the purpose of library management consulting; creation of the system of methodical publications covering all areas of activity performed by education libraries; maintaining the functioning of the system of education libraries as a single system; introduction of library innovations in the work of education libraries; improvement of professional skills of the specialists of education libraries using different forms and methods; providing access to information resource on librarianship, bibliography studies, bibliology, documentation studies, and information activity in order to meet the professional needs of librarians, educators, and students; scientific cooperation with leading libraries of other systems, departments, institutions, and organisations, regardless form of ownership (including foreign establishments), etc. In the future, the scientific and methodical work of V. O. Sukhomlynskyi State Scientific and Pedagogical Library of Ukraine will be focused on searching for, systematising and transforming progressive knowledge in the field of library science, and on generating new ideas that will further the innovative development of education libraries.

Background. Waste paper recycling is characterized by deterioration in the content of fiber mass on the fourdrinier wire of a paper-making (cardboard-making) machine, which leads to the fiber content increase in the pit water and to an increase in losses of the source fiber raw material with waste water. Objective. The aim of the paper is to evaluate the influence of amphoteric polymer resins (APR) on the fiber content effectiveness on the fourdrinier wire and the pit water contamination degree. Methods. According to standard techniques, the degree of fiber content and water turbidity, which arises in the paper and cardboard production during the formation on the paper-making machine fourdrinier wire, is determined. Results. The graphs of the dependence of the pit water turbidity on the APR consumption for different milling degree for MS-5B-2 and МС-8В-3 waste paper grades have been constructed. The high efficiency of the APR influence on the fiber content degree on the PPM wire is confirmed. The optimal values of technological parameters (milling degree and APR consumption) for the estimation of the APR impact on the pit water quality have been established. It is shown that the most effective APR among the investigated chemical auxiliaries is UltraRez 200, and the optimum consumption of all APR is 4 kg/ton of paper. The investigated APR are located by the effectiveness increasing of the APR influence on the degree of fiber content and the pit water turbidity reduction in the following series: Luresin KS – Eka WS 325 – Kymene 25X-Cel – UltraRez 200 – Fennostrengt PA21. Conclusions. The use of APR allows achieving a high degree of fiber retention on the wire up to 97 % and reduces 50–85 % of the pit water turbidity, reduces the loss of the source fibrous raw material, reduces the fresh water consumption and increases the efficiency of paper and paperboard production from waste paper.

Казакевич Г.М. Видеть разрешенное: фотография и цензура в Российской империи. Целью исследования является рассмотрение истории становления государственного регулирования оборота фотографических изображений в Российской империи и выявление особенностей его применения на практике. Для описания основных механизмов госу- дарственной политики России в отношении фотографического дела использованы традиционные принципы и методы исторического исследования, такие как историзм, системность, критический анализ источников и т. д. Выяснение влия- ния цензурной политики на повседневные практики фотографов-профессионалов и фотолюбителей осуществляется с помощью подходов микроистории. Новизна исследования объясняется постановкой актуальной проблемы и отсутстви- ем подобных работ в историографии. В статье отмечено, что цензурное ведомство было призвано контролировать созда- ние, тиражирование и распространение фотографий и фоторепродукций с целью ограничения доступа населения к изоб- ражениям, угрожающим, по мнению властей, общественной морали, государственному устройству, интересам православ- ной церкви и правящей династии. Автор приходит к выводу, что, будучи крайне строгой с формальной точки зрения, цензурная политика не способна была решить возложенные на нее государством задачи. На практике, механизм контроля действовал неэффективно и лишь создавал дополнительную бюрократическую волокиту, что и привело, в конечном ито- ге, к его частичной ликвидации.In the late 19th – early 20th cc. the Russian imperial authorities were concerned with the fast expansion of the photography. As a result, the public administra- tion undertook efforts to get the new technology under the censor- ship control. The aim of the article is to reveal the theory and practice of the governmental regulation of photography in the Rus- sian empire. Basing on the wide range of archival sources, the author uses traditional methods of the historical study to describe the photography censorship in Russia and employs the approach of microhistory to find out how the censorship affected the everyday life of professional and amateur photographers. The lack of the studies devoted to the relationship between the public authorities and photography in the Russian empire determines the scientific novelty of the paper. From the early 1860ties, both private persons who owned cameras and commercial photographic studios were placed under surveillance of the inspector of publishing facilities and bookstores. Professional photographers were obliged to put their names on all images they produced and keep an account of all their clients. Any photographic activity outside the studio required a special permis- sion of the local authorities. Only members of the photographic societies were allowed to take pictures everywhere in Russia (with an exception of military objects and borderlands) having no certifi- cate from the local governor’s office. Taking and publishing pic- tures of the ruling dynasty members and their residences required a special permission as well. The censorship controlled sharing of the photographic reproductions of the fine art works. The paintings, which (from the censor’s perspective) either propagated revolution- ary and separatist ideas or threatened the reputation of the monar- chy and Orthodox Church, were prevented from exhibiting. The local authorities used to confiscate the photographic reproductions of such paintings. As far as erotic materials were banned com- pletely, the censors paid special attention to any photographic im- ages depicting nudity. The author comes to conclusion, that despite the regulations were strict, the whole system of the state control over the photography was rather ineffective. Having no single law defining benchmarks for evaluating the pictures or even a list of the images banned throughout an empire, the censors used to act selec- tively. Furthermore, in big cities, such as Kyiv, they were too busy to control dozens of photographic studios and amateur photogra- phers. As a result, both photographers and local civil servants ig- nored most of the regulations.

Introduction. High-voltage insulation systems always have some background level of the partial discharges, which does not have any significant effect on the life of the electrical insulation design. At the same time, partial discharges destroy high-voltage insulation, leading to a carburization zone around the defect. This is the «hidden» period of development of the defect. The development of a defect zone, sooner or later, leads to an arc breakdown of the entire insulating gap. Purpose. The substantiation of the efficiency of detection of technological defects in high-voltage solid insulation of electrical insulating structures according to the characteristics of partial discharges. Methodology. The conditions for the occurrence of partial discharges in the thickness of the polymer insulation are considered. The possible values of the voltage of the beginning of partial discharges are determined for a model of a cylindrical air gap near the conductor of a power cable. It is shown that with the same applied voltages to high-voltage insulation, in the latter case, air inclusions of smaller thickness are activated in comparison with a flat structure. Practical value. The efficiency of detection of technological defects in solid composite case insulation of the stator winding of turbo- and hydrogenerators is shown. Based on the comparison of the amplitude of the pulses of partial discharges of positive and negative polarity, the estimated location of the technological defects in the insulation has been established.

The analysis of the three measurement methods of leaf blade area of young bi-axis apple trees on rootstock 54-118 was made. High accuracy of the measurement results by a method of area calculation within a leaf contour on millimeter graph paper (31, 21 cm2) and with help of a method of computer sight using application “Petiole” on Smartphone with operational system Android (31, 28 cm2) was established. The gravimetric method and the use of mobile application “Petiole” appeared to be the most productive as to time consumption to carry out the operation

Objectives This paper focuses on recognising and addressing the challenges of ADHD in early childhood girls. The paper aims to fill a gap in the scientific literature by focusing on the specificity of ADHD in girls, which differs from symptoms in boys. It also aims to raise awareness of the issue of ADHD among parents and teachers and to provide practical therapeutic guidance and educational support that is tailored to the needs of girls with ADHD. Material and methods The source materials for this publication will be various monographs and articles by special educators. The collected material will allow the analytical-critical method to synthetically realise the indicated aim of the work. Results Parents should learn to anticipate potential conflict situations, to exclude them or to plan in such a way that the child can cope with them. It is the parents' task to plan the day in such a way as to introduce a ritual and a daily routine of repetitive activities. Children with Attention Deficit Hyperactivity Disorder need to acquire skills to deal with conflict, emotional labile, anxiety and stress. Conclusions Often undiagnosed girls suffer alone together with their disorder. Close cooperation between parents and teachers is an indispensable element in the treatment of ADHD. A child with ADHD should be allowed to participate in the educational and educational process. It is important to get to know the peer group so that girls with ADHD can learn to recognise themselves and their own reactions and abilities.

This paper indicates significance of generational diversity management in modern business. Due to certain social, political and economic circumstances each generation is specific, with its own skills, interactions and expectations. What is common for all of them is the willingness to find the right employer. The one open to human needs and aware of their work commitment; the one to offer appropriate work surroundings, self- development and adequate gratification. The paper is aimed at presenting those generational disparities, for awareness of them is crucial in efficient human resources management. Worksite is the natural environment, where such age-related experiences and opinions clash, enabling to gain the right perspective and choose the most effective and innovative directing solution. Generationally diverse team brings multilevel benefits for both sites and aids enterprise development.

Conducting a study on this topic is becoming relevant due to the rapid introduction of digital technologies in the agricultural sector, which requires urgent study to effectively address current challenges in agriculture. The purpose of this paper is to analyse innovative approaches to improving the efficiency of economic activity in the agri-food sector. The methods used include the analytical method, classification method, functional method, statistical method, synthesis method, and others. The study found that the use of innovative approaches has significantly improved the productivity and sustainability of the agricultural sector. The use of blockchain technologies has increased trust in the supply chain by providing verified and transparent information on product quality. The analysis of large volumes of data has made it possible to develop specialized solutions and strategies tailored to specific business conditions in different regions. The results show an increase in the resilience of the agricultural sector to changes in economic and climate conditions. The findings of the study highlight the potential of digital transformation as a strategic tool for innovative and sustainable development of the agricultural sector. The study identified key strategies for the future implementation of digital technologies, taking into account the needs of the agricultural sector. The conclusion emphasizes the importance of introducing digital technologies to increase efficiency, improve management and ensure the sustainability of the industry in today’s digital economy. The practical significance of the paper is to analyse and highlight the factors that affect productivity and resource management in agriculture, which serves as a basis for further research and development of specific strategies and recommendations to improve the efficiency of the sector

This paper analyze the nuanced relationship between corporate income tax (CIT ) rate reductions as a tax incentive and foreign direct investments (FDI) across the Western Balkan countries. Additionally, it examines the extent to which they have progressed with their achievements during two decades (2000-2022). The transition of the Western Balkans from a closed and controlled economy to an open market economy has been challenging, but despite this, they have implemented certain policies to compete in the global market. For instance, they have reduced tax rates and offered tax incentives to attract foreign investors. This has had the effect of lowering the average tax rate, specifically in the year 2000, the average tax rate in corporate income tax was around 17%, while in 2023 the average tax rate in corporate income tax is 11%, or 6% lower. However, despite taking measures, the expected results have not been achieved. Privatization of public enterprises has been one of the main investments that these countries have attracted. The paper addresses the problems that have led to poor results and the inability of countries to convince investors for larger investments. In Kosovo, the issue of progress in this area is being overlooked by the government. It is important for Kosovo to recognize that neighboring countries are making significant progress, and therefore, it is critical to conduct research that not only highlights the current situation but also identifies potential solutions for the future.

Hybrid power supply systems (HPSSs) are considered as a good option for electric power supply of remotely located from the grid consumers due to significant fuel savings compared to diesel sets. Quick development and improvement of HPSSs may be achieved using specialized methodologies and programs. In the paper a schematic diagram is proposed and operation principles of a 400 V / 50 Hz HPSS were developed. The system’s main component is the master generating unit of the hydropower plant using a 250 kW induction generator (IG). The voltage of the system is controlled by the controller of the AC/DC power converter. The electrical frequency of the system is controlled by the speed controller of the hydropower turbine. A wind turbine, an energy storage system and a regulated dump load are connected to the IG through the AC/DC converter. Goal. The paper aims to develop a methodology for steady state performance analysis of the hydraulic turbine driven isolated IG operating in parallel through an AC/DC power converter with additional sources and consumers of active power. Methodology. The methodology for evaluation of performance characteristics of the IG operating in the proposed system has been developed. The methodology is based on the equivalent circuit of the system, equations of active and reactive power balance in the system and the superposition method. Results. The equations of frequency, voltage and power regulators of the system are given. The performance characteristics of the IG operating in the system supplying resistive and RL load in «constant voltage – constant frequency» mode are obtained. Novelty. The developed methodology is innovative in taking into account the control algorithms of the system. The comparative analysis of the IG’s performance operating in the stand-alone generating unit and in the generating unit connected to the proposed system is performed. Practical value. The developed methodology can be used for development and performance improvement of hybrid AC power systems.

This paper describes the possibilities of communication through information flows in the tasks of recognition and prediction using the example of assessing the change in the state of defects in materials.In the context of communication between several elements of the system, an important part is the formation of effective information flows and optimal messages. In this context, the grouping of information according to the principle of informativeness is proposed, using the example of the problem of recognition and further forecasting.Information transfer with the Internet of Things involves exchange over wireless networks and network protocols.In the paper, it is proposed to use the segmented area of the recognized object and use it to check the forecast. The paper proposes to use the segmented region of the recognized object in the image and use it to check the prediction. In addition, sensor data can be used to test defect classification. This design of information flows can improve performance.

The purpose of the paper is to thoroughly investigate the intricate relationship between the United States and Azerbaijan from 1991 to 2020, considering diplomatic, political, economic, and security dimensions. Emphasizing the pivotal role of Russian Federation in the South Caucasus, the research seeks to provide a holistic understanding of the factors influencing U.S.-Azerbaijan relations, offering valuable insights into evolving geopolitical dynamics over the three crucial decades. The novelty of the paper lies in its in-depth exploration of three decades of U.S.-Azerbaijan relations, the study provides unique insights into the evolving dynamics, contributing a comprehensive analysis of the multifaceted relationship. Conclusions. The author identifies 4 periods of US-Azerbaijan relations in 1991-2020: 1) 1991-2001, 2) 2001-2007, 3) 2007-2015, and 4) 2015-2020. From 1991 to 2001, the United States underwent a transformative phase in its policy towards Azerbaijan, marked by an increased focus on regional stability and economic partnerships through energy initiatives like the Baku-Tbilisi-Ceyhan pipeline. Security concerns in the South Caucasus also influenced policy decisions, while considerations of democracy and human rights were weighed against broader strategic imperatives. This period set the foundation for subsequent shifts in U.S. policy towards Azerbaijan. In 2001-2007, U.S. policy towards Azerbaijan underwent significant changes, prioritizing the Baku-Tbilisi-Ceyhan pipeline and intensifying efforts in combatting international terrorism. The Global War on Terror played a crucial role, leading to strengthened U.S.-Azerbaijan relations, though democracy promotion took a back seat to energy and security interests. The period from 2007 to 2015 saw a nuanced shift, with decreased U.S. focus on energy and security, increased attention to democracy and human rights, and challenges arising from Azerbaijan’s opposition to the Turkish-Armenian Rapprochement. Azerbaijan’s strategic concerns regarding Nagorno-Karabakh intensified, and U.S. engagement faced limitations in influencing regional outcomes. Between 2015 and 2020, U.S. policy towards Azerbaijan further disengaged across energy, security, and democracy promotion dimensions, influenced by factors like the unconventional oil and gas revolution, decreasing Central Asia significance, rising isolationism, and the Trump administration’s priorities. The U.S. response to regional dynamics, notably the Nagorno-Karabakh conflict, showcased a trend of reduced involvement.

The purpose of the paper is to highlight the development of information-psychological warfare, its history, concepts, technologies and methods, which are one of the most important areas of work in the field of international relations. The concept of ‘information warfare’ has concentrated a number of phenomena from the sphere of mass communications and during the 20th century was called various terms, such as ‘disinformation’, ‘propaganda’, ‘psychological warfare’, ‘psychological operations’. Within the scope of the study, the importance of psychological warfare in today’s context has been examined using the example of Azerbaijan and Armenia. It has been emphasized how Armenia effectively employed psychological warfare tactics and propaganda to gain an advantageous position in the late 20th century. In the early 21st century, the significance of Azerbaijan gaining a superior position in psychological warfare and using propaganda effectively has been discussed. Additionally, the article delves into the importance of using white propaganda during psychological warfare and the drawbacks of black propaganda within the context of the psychological warfare between Azerbaijan and Armenia. The novelty of the paper lies in a comprehensive analysis of information and psychological warfare and operations in the context of the Azerbaijan-Armenian conflict. Conclusions. In the 20th century information and psychological warfare and operations became part of the military policy of states. Now, due to the current situation on the world stage, the methods and means of conducting information warfare are changing and every year they are reaching a higher level. It can also be stated that in the 21st century, information wars have become more widespread. In summary, the historical context and evolution of information warfare demonstrate its enduring significance as a tool for states to achieve their strategic and political goals. As technology and global politics continue to evolve, information warfare is likely to remain a key component of statecraft and international relations.

War brings destruction in the broader sense, forcing millions to flee their homes, and resulting in an increased burden of depression, anxiety, PTSD and other mental and behavioral disorders. This burden grows even more in the framework of pandemics and natural disasters, as social and protection services experience crisis of resources. Providing one-to-one mental health care is no longer feasible for masses of refugee and internally displaced children and adults who need support, and, as a result, the need to have increasing numbers of mental health specialists who intervene in groups becomes more and more emergent. The paper reviews the Positum MGS approach to work with groups of children and adults in refugee settings, and not only, suggests the ‘Positum MGS coaching protocol’ within the framework of group Positive Psychotherapy (PPT after Peseschkian, since 1977)TM. Empirically supported and demonstrated by a case in the paper, the protocol being applied by a Positum MGS trainer or team of trainers, during an in-person training of 4-5 days, helps trainees greatly in learning to use psychosocial transcultural games and related techniques as resilience-building tools with groups of children, adolescents or adults. Either in the position of PPT trainers, psychotherapists, consultants or students, the participants in a Positum MGS core training and coaching or PPT training at basic or master levels with a focus of working with groups, can be supported through the suggested coaching protocol and questions in line with the 5-stage consultation of PPT.

Enterprises develop and interact with the global environment. Their activities are influenced by various factors, and timely identification of the degree of their influence allows forecasting business development and reasonably choosing development strategies. The work is based on the hypothesis that in the global environment, under the influence of internal and external factors, tools can be developed for enterprise assessment and business strategy formation. The puprose of the paper is to develop a toolkit for evaluating an enterprise in a global environment for choosing a development strategy. In the article, the authors conduct a study of the influence of factors of the global environment on the development of the enterprise, propose a model with the help of which it is expedient to forecast the metastate of the enterprise and put forward proposals for choosing an effective development strategy. A structural and logical model for ensuring the stable development of business systems has been proposed. In the process of research, the authors developed a system of indicators that form an integral index that characterizes the effectiveness of the development of business systems. The basis of the integral indicator of the metastate of the development of business systems is a set of indicators for assessing the development and changes in the state of business systems in a dynamic global environment. The economic and mathematical model of estimating the metastate of business systems is considered as a reflection and formalization of the main, essential parameters of business systems development (production, technological and property, personnel, social, financial, material and supply, marketing, foreign trade. The integral metastate index of business systems systematically reflects the effectiveness of the Kharkiv machine-building business systems and allows determining strategies for their development. The selected machine-building enterprises have been grouped by the following types of development strategies: a rapid growth strategy aimed at ensuring the development of enterprises, offensive positions; a strategy of moderate growth and stabilization, characterized by stable parameters of business systems development, adequacy of resources for development, aimed at saving resources and costs, market expansion and development, product upgrades, innovative development; a strategy of curtailment, reduction, which is characterized by negative development trends due to lower profits, reduced assets, reorientation of consumers to other products or markets. As a result of the research, a methodological approach to the assessment of trends in the development of business systems has been developed, which will allow obtaining additional advantages in the global environment. Determination of benefits becomes a basic characteristic for monitoring information provision regarding the organization of enterprise activities in a global environment. The paper makes a contribution to the research of the methodology for assessing the development of enterprises that can be applied to other enterprises, not only to the Kharkiv area. In the event of a change in the influence of global environmental factors, the degree of influence should be specified. The work offers an opportunity to develop further research from the point of view of strategic management, the concept of six sigma, and production optimization.

The paper investigated the audience's perception of the influence of government ownership of NTA on the principle of truth, fairness and balance. The media ownership theory and the social responsibility theory served as the theoretical underpinnings for the study. The study used a mixed method design, including an in-depth interview for the qualitative data and a survey for the quantitative data. The Wimmer and Dominick online sample size calculator was used to determine a sample size of 384 from the population of 555,500. Data was collected using a questionnaire and interview guide. Multi-stage and purposive sampling procedures were used. The results showed the respondents' high knowledge of the journalistic principles of truth, justice, and balance in news reporting. The respondents have a negative perception towards government ownership of NTA and the practices of the journalists regarding truth, fairness, and balance in news reportage, as the ownership affects the practices of journalists in upholding the principle of truth, fairness, and balance in news reportage. The study further revealed that the respondents perceive that the influence of government control of NTA limits the freedom of the press, which is against the ethics and demands of professional journalism. The paper concluded that when news stories are written and framed in the interest of the owners rather than the public interest, it kills journalistic ethics and professionalism as well as the social responsibility role of the media.

In the context of the Fourth Industrial Revolution, characterized by rapid technological advancements and widespread digitization, this paper delves into the evolving paradigms of historical education. Traditional teaching methods are becoming obsolete, given the tech-savvy nature of current learners. This study explores innovative pedagogical approaches that integrate technology, catering to the unique needs of this generation. By reviewing contemporary literature and gathering expert insights, we offer an overview of emerging trends in historical education. Notably, technology is poised to redefine how history is learned. Modern learners gravitate towards boundary-less learning experiences, enabled by resources like ebooks, ICT-based apps, websites, android platforms, VR, and virtual tours. To stay relevant, a significant shift in historical education is imperative. This paper concludes by emphasizing the profound implications of this transition and proposes actionable recommendations for educators and policymakers.

In the 21st century, the issue of energy security is an important challenge for many states. Energy independence is an important component of the country’s national security. That is why its development is considered a priority of the country’s economic policy. Along with the trends of globalization, international energy relations are increasing day by day. However, the issue of energy security and vulnerability is equally on the agenda, which in turn is related to the problems of access to energy resources and the aggressive appeal of industrialized states with this issue, which creates a destabilizing vulnerable environment in the state. This issue was clearly revealed in the background of the 2022-2023 war between Russia and Ukraine. The mentioned issue is one important part of this paper, along with which the issue of renewable energies is also discussed. Renewable energies, the so-called practical way to get rid of petroleum products is growing more and more. Accordingly, the mentioned work considers both issues equally on the example of the European Union’s energy security strategy, within the framework of the Russia-Ukraine war. The paper discusses the European Union’s energy security policy and current challenges.

In this paper, we address the stabilization problem for nonlinear systems in a critical case. Namely, we study the class of canonical nonlinear systems. Canonical nonlinear systems or chain of power integrators is an important subject of research. Studying such systems is complicated by the fact that they cannot be mapped onto linear systems. Moreover, they have the uncontrollable first approximation. Previous results on smooth stabilization of such systems were obtained under the assumption that the powers in the right-hand side are strictly decreasing. In this work, we consider a case of non-increasing powers in the right-hand side for a three-dimensional system. A popular approach for studying such systems is the backstepping method, which is a method of step-wise stabilization. This method requires a sequential investigation of lower-dimensional subsystems. Backstepping enables the study of a wide range of nonlinear triangular systems but requires technically complex and cumbersome computations. Therefore, a natural question arises about constructing stabilizing controls of a simple form. Polynomial controls can serve as an example of such controls. In the paper, we demonstrate that linear controls can be considered as stabilizing controls. We derive sufficient conditions for the coefficients of the linear control that ensure the asymptotic stability of the zero equilibrium point of the corresponding closed-loop system. The asymptotic stability is proven using the Lyapunov function method, which is found as the sum of squares. The negative definiteness of the Lyapunov function derivative in a neighborhood of the origin guarantees asymptotic stability. In contrast to the case of strictly decreasing powers, additional conditions on the control coefficients, apart from their negativity, emerge. The obtained result extends to a broader class of nonlinear systems through stabilization by nonlinear approximation. This allows the consideration of systems with higher-order terms in the right-hand side. The effectiveness of the applied approach is illustrated by several model examples. The method used in this work to investigate the case of non-increasing powers can be applied to systems of higher dimensions.

One of the important directions of theoretical, computational and experimental research related to the improvement and development of new design elements of modern electrical devices, primarily medium voltage circuit breakers and contactors, is the study of not only electromagnetic, but also mechanical processes in these electrical devices. The paper is devoted to the creation and use of computational models for calculating mechanical forces and deformations of an absolutely rigid and real drive shaft of a medium voltage vacuum circuit breaker in static mode with the aim of quantitative comparison of the obtained numerical results. Calculation studies are performed using the finite element method. A comparative analysis of the calculation of mechanical stresses in the drive shaft of a vacuum circuit breaker in a static mode for an absolutely rigid and real shafts is carried out in this paper on the basis of the developed models. The obtained results of computer modeling are given in detail in tabular and graphic forms, including the shape of the deflection of the medium voltage vacuum circuit breaker shaft at the maximum stroke of the actuator of the electrical device under study. It has been demonstrated that the mechanical deformation of the shaft causes a decrease in contact drop and contact pressure forces, but with a correctly selected cross-section, these values are not critical and have little effect on the circuit breaker operation (about 20% and 7%, respectively). It is shown that as a result of shaft bending, additional axial forces appear in the supports, which significantly affect the choice of bearings according to the equivalent static load.

The paper presents a study of the dynamics of the oscillatory dissipative system of two elastically connected pendulums in a magnetic field. Nonlinear normal vibration modes of the pendulum system are studied in the paper taking into account the resistance of the medium, and the damping moment created by the elastic element. A system with two degrees of freedom is considered. The masses of the pendulums in that system differ significantly, which leads to the possibility of localization of oscillations. In the following analysis, the mass ratio was chosen as a small parameter. For approximate calculations of magnetic forces, the Padé approximation, which satisfies the experimental data the most, is used. This approximation provides a very accurate description of magnetic excitation. The presence of external influences in the form of magnetic forces and various types of loads that exist in many engineering systems leads to a significant complication in the analysis of vibration modes of nonlinear systems. A study of nonlinear normal vibration modes in this system was carried out, one of the modes is a connected mode, and the second one is localized. Vibration modes are constructed by the multiples scales method. Both regular and complex behavior is studied when changing system parameters. The influence of these parameters is studied for small and significant initial angles of the pendulum inclination. An analytical solution, which is based on the fourth-order Runge-Kutta method, is compared to numerical simulation results. The initial conditions for calculating the vibration modes were determined by the analytical solution. Numerical simulation, which consists of constructing phase diagrams, trajectories in the configuration space and spectra, allows to estimate the dynamics of the system, which can be both regular and complex. The stability of vibration modes is studied using numerical analysis tests, which are an implementation of the Lyapunov stability criterion. The stability of vibration modes is determined by the estimation of orthogonal deviations of corresponding trajectories of vibration modes in configuration space.

The consumer price index (CPI) is a crucial economic indicator of consumer price inflation, which has an attendance effect on the extent of savings and, hence, on investment capacity. The literature contains different opinions on the relationship between exchange rate and consumer price index; however, given the uniqueness of each country’s economic environment, it became apposite to focus the bearing of this paper on the South African economic context. Thus, this paper evaluates the effect of currency exchange rates on the consumer price index in South Africa. Time series data on CPI and exchange rates were drawn from the Fusion Media investment database and were analysed using the OLS regression. For the independent variables exchange rate, which is the Rand price against the Dollar, the authors applied lagg-2 given the assumption that exchange rate differences might take up to two months to affect the consumer price index. The authors’ assumption draws from the findings of eminent scholars, which indicate that, given sufficient time, changes in domestic prices would fully compensate for exchange rate adjustments. The analysis showed that exchange rate changes significantly and positively affect CPI within the data’s boundaries. The findings offer academic and practical implications for understanding the theoretical short-term period effect of the exchange rate on the consumer price index within the South African setting and for practical economic policy application for advanced policies to cushion potential negative effects on savings and investment. The paper provides an agenda for further study of the application of expanded time series to evaluate the effect of currency exchange rates on CPI over a longer period to unravel a theoretical difference between the short-term and long-term implications of exchange rates on CPI.

The 21st-century social and political environment has continued to evolve and heightens the demand for organisations to provide accountability for the sustainability operations of their businesses. Accordingly, organisations are committing to diverse strategic efforts to provide disclosures on their social and environmental actions to the society and environment where they operate. Corporate social responsibility (CSR) has received support and criticism since its emergence in the corporate realm. This paper aims to portray CSR as beyond mere symbolic legitimacy and propose a corporate-society symbiotic existential framework. The research approach is a critical literature analysis and conceptual framework development. The results show that the corporate and the society co-exist in a reciprocal relationship. Thus, the implication is that some CSR may be more than symbolic legitimacy with potential benefits derivable from committed transparent and pragmatic CSR, which can encourage companies to shift away from symbolic CSR tendencies. The paper recommends the need for organisations to operationalise CSR practices and policy as this has a propensity to enhance corporate legitimate standing, which will assist in reducing business risks and enhance the potential for profit in the long run. In addition, this discourse may be helpful for business schools in their academic studies about CSR and legitimacy theory and would also assist in CSR regulatory initiatives. The value of the paper hinges on the proposed novel framework for corporate-society symbiotic existence, which provides an agenda for future research study and expansion therein. This framework may lead to multiples of modelling in future CSR and corporate governance studies and may also assist in narrowing the gap between legal and normative CSR.

The paper calls into question the development of the digital competence of future philologists, taking into account the Turkish and Ukrainian experiences. The study of digital competence development is attracting increasing interest due to a growing need for experts capable of processing the enormous streams of continuously transmitted information and experts willing to improve their digital skills for professional growth. The purpose of the study is to broaden the current knowledge about the ways of developing digital competence. In this respect, the paper investigates two systems of future philologists' training in Ukraine and Turkey in the Digital Tools for Translation course. The authors analyze the experience of the Turkish and Ukrainian higher education institutions regarding the use of appropriate ICT tools using theoretical and empirical methods. Fifty-two future philologists from Turkey and Ukraine took part in the research. The study presents the results from observing the training and interviews with Ukrainian and Turkish students. The Shapiro-Wilcoxon method (non-parametric criterion) was used to verify the results. An analysis has highlighted the positive experience of Turkish universities, which can be implemented in future philologists training in Ukrainian universities. The findings of this study support the idea that the insufficient level of digital competence development lengthens and complicates the period of adaptation of graduates to modern working conditions. The authors found that the integration of Ukrainian higher education into the European higher education area occurs in times of globalization and the digitalization of society, which radically changes the nature of many activities. This research has clearly shown that digital competence development is more effective with the implementation of a holistic approach when students enhance digital competence while acquiring all other competencies. Our research suggests that the digitalization of education reduces the gap between graduates' digital competence level and modern society's expectations.