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Introduction. The classical model of higher education, with a class-based system, does not meet the challenges of modern reality. Discussions are currently underway on the need to transform the higher education system. Methodology. The purpose of this study, based on the identification of factors affecting the current state of higher education, is to determine the direction of transformation of the role of the teacher and, accordingly, what approaches and teaching methods are currently required. The study uses a systematic approach that makes it possible to study individual elements of the education system, their interrelation and mutual influence, changes in the higher education system as a whole and its individual elements under the influence of environmental challenges, resulting in the transformation of the system as a whole, as well as the adjustment of the norms and rules of the system, the role and functions of individual elements. Leading experts and analysts, using foresight, have analyzed the changes that are taking place and will take place in various professional fields, including education, and have presented the results of their research in the form of an Atlas of Future Professions. Discussion. In the context of the development of information technologies, information challenge, changes in teaching methods are needed, primarily in higher education. Based on the analysis of this Atlas, it is possible to draw conclusions which direction higher education will be transformed in, and how the educational process will change, what the guidelines in teaching methods will be. The article analyzes the changing role of the teacher in the educational process, the transformation in teaching methods, especially student-centered education and their significance in the teaching process. Special attention is also paid to new approaches to the educational paradigm related to interdisciplinarity. Conclusion. Particular attention is paid to the interdisciplinary approach while teaching students of “Foreign Regional Studies” specialty, various approaches to explaining the concept of “interdisciplinarity” are proposed.

Introduction. Implementation of digital technology for teaching philosophy in higher education requires new approaches to the content quality assessment. Writing assignments, engaging students in creating texts where the use of philosophical terms is implied, can become the source of data for Philosophy course efficiency analysis and evaluation. They can also enable the research of the students’ vision with the quantitative methods of text analysis. The article aims at evaluating the particular assignment efficiency on Social and Political Philosophy within the Philosophy course implying quantitative content analysis. Methodology. The suggested research implements quantitative content analysis for determining the frequency of social and political philosophy terms in students’ texts for the writing assignment. The essay’s corpus is generated from the assignment “Utopia” in the online course “Philosophy” for 2nd-year bachelor students that is aimed at describing their vision of humanity’s future. The acquired results were broadly categorized into two groups: general terms and the terminology relating specifically to social and political philosophy topics. Discussion. The research results demonstrate that the most frequently used nouns in the students’ essays represent the most general terms of social and political philosophy. However, specific terminology is implemented by the students relatively rarely. Conclusion. The research results confirm the hypothesis that quantitative content analysis of student-generated texts in the online course can become the data source for improving the course content and assignments. In this particular case, quantitative content analysis of social and political terms implementation for the student-generated text corpus in assignment “Utopia” demonstrates the necessity to pay more attention to specific terminology of social and political philosophy while teaching the course. Quantitative methods implementation for student assignments analysis revealed the opportunities to use them as a source of data for sociophilosopical research of students’ vision for the future of humanity.

Introduction. Our society is moving towards globalization, informatization, digitization, but the individual is not getting happier. And yet, man is distinguished from all other known species by the ability to be happy. Moreover, a lot of human problems, stem from his “unhappiness”. The subject to bring up a happy man is gaining in importance. Thus, the UN resolution “Happiness: a holistic approach to development” defines the pursuit of happiness as one of the main goals of mankind. The methodological basis of the study was a socio-cultural approach which allowed to identify the main contexts for the definition of happiness. Research method - analysis of philosophical, psychological, cultural, pedagogical texts. Revealing views, positions of evidence in the general subject field is the upbringing of a happy person. The article deals with the concepts of M. Argyle, V. Tatarkevich, D. A. Leontiev, E. Fromm, A. Maslow, K. Rogers. The key contexts for the definition of happiness, identified as a result of socio-cultural analysis, are extrapolated to pedagogy. Based on the ideas of classical teachers K. D. Ushinsky, A. Nill, A. S. Makarenko, V. A. Sukhomlinsky on the topic of happiness, fundamental conclusions have been drawn. In order to bring up a happy person, it is necessary to: to create an understanding of the universal connection of man to the world, to show the dependence of an individual’s happiness on the happiness of others; to help the pupils to find a cause that will give meaning to the soul; to develop the desire to realize their potential in socially meaningful activities and creativity; to learn to see the joyful prospects of tomorrow; to support not the desire for pleasure and the avoidance of suffering, but the abilities and skills to overcome adversity. Pupils should be made aware of their responsibility for their happiness and that of others, and should develop a sense of measure and moral limits in the pursuit of happiness.

The main properties of copper that determine its preferable application areas are high electrical conductance and thermal conductivity, as well as high stability against corrosion. The mechanical characteristics of metals may be affected by introducing trace additives of inert ceramic materials (modifying agents), which would be crystallization centres, altering micro- and macrostructure. For better wetting with the melt, ceramic particles are to be plated with metals through the joint treatment of ceramic powders and metals in planetary centrifugal activators. To study the effect of modification on copper properties, four molds were prepared to obtain cylindrical samples 30 mm in diameter, with different modifying agents: 1) B₄C/Cu/Cr, 2) (WC/TiC)/Cu/Cr, 3) ferrocerium MTs50Zh6 (an alloy of iron and a mixture of rare earth metals), 4) without additives. The amount of the active phase (ceramics and rare-earth metals) was 0.03 wt. % of the cast mass. It is discovered that samples 1 and 2 exhibit the smallest standard deviations of hardness from the mean values, which may be the sign of more uniform crystallization of the melt in the cases when B₄C and WC/TiC are used as modifying agents. Standard deviations for samples 1-4 with respect to HBW (Brinell hardness) are 1.90, 1.37, 6.29, 2.54, respectively, and with respect to HV (Vickers hardness) - 2.39, 2.89, 6.53, 5.28, respectively. The improvement of corrosion stability in comparison with non-modified sample after exposure for 43 h in 11 % HNO₃ solution was 9.3, 2.2, -10.9, 0.0 %, respectively, and after exposure for 127 h - 13.1, 15.4, 14.6, 0.0 %, respectively. The grain size of samples modified with ceramic refractory particles decreased by a factor of 2.4-3.0 in comparison with the reference sample, while the grain size of samples modified with rare-earth metals, on the contrary, increased by a factor of 1.5-1.7. The size of subgrains in all the modified samples was 1.3-5 times smaller than that in the reference sample.

Analysis of literature data in the field of synthesis and study of the physical and chemical properties of mono-, bi-, tri-, tetracyclic and adamantyl-containing esters of (meth)acrylic acids is systematized and presented in the review. The reactions under consideration involve the synthesis of these compounds by means of esterification of acids with cyclic alcohols, transesterification, as well as the addition of (meth)acrylic acids to unsaturated alicyclic hydrocarbons, etc. The main directions of the practical application of polycycloalkyl-containing (meth)acrylates are indicated. It is stressed that the functionalization of the double bond in norbornene-containing compounds makes it possible to obtain a wide class of functional derivatives with potential chemical activity. The results of studies carried out by the authors of this review on the addition of acrylic acids to the derivatives of cyclo- and polycycloolefins are presented. Studies on the synthesis of the derivatives of acrylic esters of cyclohexene, norbornene, dicyclopentadiene and tetracyclododecene containing hydroxyl, alkoxy, carboxyl, as well as siloxane, isocyanate and other nitrogen-containing groups are considered. It has been shown that these compounds are reactive monomers for obtaining practically valuable polymers used in many industrial areas.

Optimal parameters for determining As by the photometric method have been established. Results of arsenic determination in rocks and soils by means of photometry are presented. This method is distinguished by the low detection limit (0.1 g/t) and economic efficiency in comparison with other modern analytical methods (atomic absorption spectrometry, atomic emission spectrometry with inductively coupled plasma, and mass spectrometry with inductively coupled plasma). For rocks and soils containing organic matter, the applicability of the existing methods of acid decomposition and melting was evaluated. The results of As determination by means of photometry were compared with its certified contents in the State Standard Samples of rocks (SGKhM-1, SGKhM-3, SG-3, SZR-2, SKD-1, SGKh-1), and with the data obtained by means of mass spectrometry with inductively coupled plasma on volcanoclastic greywacke. The parameters of As determination by means of photometry were optimized. It is recommended to use the photometric method for mass determination of arsenic in rocks and soils.

Beneficiation of ilmenite ores from the Ha Tinh deposit (Vietnam) is studied by means of electromagnetic, electrostatic separation, and flotation. The dependences of the mass of the obtained magnetic fraction on the current strength and on benefication degree are determined for different numbers of the stages of magnetic separation. The conditions for the change in the concentration of the titanium product depending on the voltage on the electrodes in the process of electrostatic separation are studied. It is shown that separation brings the heavy magnetic fraction apart from the waste rock, while subsequent flotation provides a high efficiency of rutile separation from impurity components. For flotation concentration of the product after separation processes, it is established that process efficiency depends on titanium concentration in the product to be concentrated. As a result of beneficiation, ilmenite concentrate containing more than 50% TiO₂ is obtained, which meets the most stringent requirements of the market. The design of the laboratory facility and the fluorination reactor is described, as well as the materials used to manufacture them. The research methodology is described in detail. During the fluorination of the obtained concentrate with elemental fluorine, the dependences of conversion degree on the time and temperature of fluorination are investigated (S-shaped curves). It is determined that the process is complete (conversion degree is more than 98 %) within 5 min at 700 °C. The features of the fluorination of the obtained concentrate are analyzed on the basis of kinetic equations. The activation energy and preexponential factor in the Yander kinetic equation are determined. It is shown that fluorination kinetics are limited by diffusion processes (supply and removal of reagents) rather than by the rate of the chemical reaction itself.

Thorough investigation of the decomposition of eudialyte concentrate by means of sorption conversion in low-concentration sulphuric acid solutions is carried out. The effect of process conditions on the efficiency of decomposition of acid-soluble minerals from the concentrate and sorption of valuable metals and natural radionuclides from the concentrate by the sorbent is studied. It is shown that the sorption of rare earth elements, manganese, uranium and thorium, which are rather stable against hydrolysis under experimental conditions, is achieved within a broad range of process parameters. The optimal conditions for the sorption of zirconium (hafnium), niobium (tantalum) and titanium by the sorbent differ due to different hydrolytic stability of these elements in low-concentration acid solutions. The choice of optimal process conditions should be determined by economic reasonability because it is impossible to achieve a high recovery of all valuable components at the same time.

Two models of deconvolution of the first-order scattering Raman spectra of semi-coking solid products and initial coals of low metamorphism stage are compared. The results obtained by analyzing the spectra within both models are consistent with each other. It is shown that the I _D/ I _G parameter loses its informational value if additional functions describing the vibrations of C-C bonds with different types of carbon atom hybridization are used. Graphitization degree and the proportion of edge defects in graphite planes may be considered as the main numerical characteristics of imperfection in the carbon frame of low-metamorphised coal and the products of its pyrolysis.

Electron microscopy and X-ray fluorescence spectroscopy were used to study the effect of the cooling parameters of the melt obtained by reductive melting of the Chuktukon rare metal ore on the composition of the silicate and metal phases formed. The conditions for ore reduction and melt cooling are established, ensuring the predominant transition of iron, manganese, niobium and titanium into the metallic phase, and rare earth elements concentrating in the silicate phase, which is important for subsequent stages of ore processing. With relatively rapid cooling of the melt, the slag and metal parts of the system are homogeneous. In contrast, with a slow decrease in temperature, the formation of several phases with different chemical compositions is observed in both parts of the system.