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The effect of various photoperiod modes of red LED lighting on eggs under incubation on the growth, development of visceral organs, hematological profile of blood, stress level, metabolism, chicken embryos and results of incubation of egg of Lohmann Brown cross has bee studied. On the 21st day, with a 24-hour light mode, embryos showed an increase in body length and weight, muscle stomach, liver and spleen, and at 18- and 12-hour mode – body weight, muscle stomach, liver and spleen. In the absence of light and 12-hour light mode, embryos showed lymphocytopenia and neutrophilia, and increased stress levels. At the 24- and 18 hours modes, the intensity of respiration and level of basal metabolism in embryos on the 21st day increased compared to developing embryos in the absence of light and with 12-hour light impact. The 24- and 18-hour modes were superior in terms of number of chickens bred compared to control and 12-hour lighting mode. The hatching under prolonged light was significantly higher than in absence of light and under 12-hour illumination by 1.99–2.33 p.p. and 4.99– 5.33 %, and hatchability – by 2.16–3.32 p.p. and 3.68–4.84 %. The highest embryonic viability during 19–21 days was detected with round-the–clock lighting, and the highest fetal death was detected with 12-hour lighting. Thus, in the practice of incubation of eggs of the Lohmann Brown cross, it is advisable to use continuous red LED lighting, which contributes to intensive development of chicken embryos and visceral organs (muscle stomach, liver and spleen), stress resistance, optimization of metabolism, increased hatching and hatchability.

The aim of the articleis to explore the role of music streaming platforms in the processes of building Ukrainian national cultural identity. Results.The article notes that the development of new computer technologies, interactive media technologies, and visual arts is an important component of contemporary culture formation in Ukraine. It is proved that interactive tools of communication environments and artistic experience reproduction have gained new opportunities for the formation of national cultural identities and have become a factor of active communication between cultural communities of different countries. The authors of the article argue that music streaming platforms contribute to the involvement of the younger generation in Ukrainian culture, to the development of the music industry in Ukraine, and help Ukrainian performers gain recognition on the international arena. The scientific noveltyof the study lies in the cultural and communicative, national and patriotic interpretation of streaming platform content. The practical significance of the article is reflected in the attempt to find new communication tools with representatives of the younger generation in the context of national cultural identity building. Conclusions.Ukrainian musical culture plays an important role in the formation of national identity. Various genres and types of music, namely folk, classical, and contemporary Ukrainian music show the traditions and cultural customs of the Ukrainian people through different eras and generations. Ukrainian music promotes Ukrainian culture internationally and reflects Ukrainian national identity.

The purpose of the research is to study the specifics of the repertoire palette of foreign folk choirs. Achieving the goal involves determining not only the features of the current repertoire preferences of leading groups but also the prospects that may open up in view of the transformation of listeners' preferences and the demands of today’s audience. The research methodology, while determining the specifics of the repertoire of foreign folk choirs, involves the use of the method of synthesis, which outlines the range of works to which choirmasters turn. The method of analysis is used to study the specifics of the interpretation of folk sources by choirs. The scientific novelty of the research is the selection of foreign folk choirs that operate in Scotland, Britain, France, USA; defining their repertoire palette. Conclusions. The vocal style of the performers and the repertoire are of dominant importance in the formation of the creative face of the ensemble. The study of folk choirs that operate abroad, shows a significant spread of such compositions. Folk choirs were formed in Scotland, Great Britain, France and the USA. Their repertoire consists of folk songs (Celtic, Scottish, Gaelic) and original works, which testifies to the universality and diversity of groups. Some choirs use folk and academic vocal style, where the choice of one or another is determined by the repertoire. Attempts to fully reproduce the folklore layer of musical culture can be traced in the preservation of folk vocal style, type of voting, the fricative basis in the arrangements and so on. Promoting Ukrainian folklore as part of the repertoire of foreign folk choirs is seen as a promising direction. This will contribute to its dissemination, which is important for the preservation of the cultural heritage of the Ukrainian people.

Мета статті — дослідити специфіку народного хорового (пісенного) мистецтва в сучасному просторі України. Вказана мета передбачає окреслення особливостей функціонування колективів цього напряму та визначення мистецьких подій для їхньої популяризації й розвитку. Методологія дослідження. Наукові положення статті аргументовані на рівні методів (емпірико-теоретичний, аналіз і синтез, індукція та дедукція, мистецтвознавчий аналіз), які узагальнюють основні стратегії розвитку народного хорового мистецтва. Аналіз здійснюється за принципом розрізнення провідних українських хорових колективів і визначення основних заходів їхнього розвитку. Результати. Палітра сучасних народних хорів представлена колективами різних типів — навчально-творчі, професійні, аматорські. Провідну роль у формуванні творчого обличчя колективів відіграє художній керівник і хормейстер, який визначає тип репертуару і специфіку його інтерпретації. Хорове пісенне мистецтво України наразі розвивається у напрямку формування індивідуального музичного звучання, що реалізується завдяки зверненню до пісенного фольклору різних регіонів. Потужним джерелом у розвитку народного хорового мистецтва є участь у фестивалях та конкурсах, які сприяють акумуляції творчих зусиль учасників колективів, виступають простором для обміну досвідом і комунікації зі слухацькою аудиторією. Функціонування таких об’єднань як Всеукраїнське хорове товариство імені М. Леонтовича, що є асоціацією Національної всеукраїнської музичної спілки, формує потужне підґрунтя національної культурної політики у питанні розвитку народного хорового мистецтва. Наукова новизна статті полягає у дослідженні основних стратегій розвитку народного хорового (пісенного) мистецтва в сучасному просторі України. Крім того, у визначенні основних типів українських народних хорових колективів, окресленні шляхів формування їхнього індивідуального творчого кредо.

The purpose of the article is to investigate the specifics of folk choral (song) art in the modern Ukrainian space. This purpose involves identifying the features of the functioning of the ensembles working in this field and the identification of artistic events that contribute to their promotion and development. Methods. The scientific provisions of the article are based on the methods (empirical and theoretical one, analysis and synthesis, induction and deduction, and art history analysis), which allowed identifying the main strategies for the development of folk choral art. The analysis is carried on the principle that is used to distinguish the most prominent Ukrainian choirs and identify the main activities that contribute to their development. Results. The diversity of modern folk choirs is represented by various types of ensembles, including educational and creative, professional and amateur ones. A leading role in the formation of the creative image of the ensemble is played by its artistic director and choirmaster. They determine the type of repertoire, the specifics of its interpretation, etc. Now the choral song art of Ukraine is developing towards the formation of an individual musical sound, which is realised by turning to song folklore belonging to different regions. A powerful source for the development of folk choral art is participation in festivals and competitions, which allows accumulating creative efforts of the members of the ensembles. It serves as a space for the experience exchange and communication with the audience. The functioning of associations such as the Mykola Leontovych Ukrainian Choral Society, which is a part of the National All-Ukrainian Music Union, provides a powerful basis for forming the national cultural policy on the development of folk choral art. The article’s scientific novelty consists of researching the main strategies for developing folk choral (song) art in the contemporary Ukrainian space. The main types of Ukrainian folk choirs are identified, and the ways of formation of their individual creative credos, which manifest themselves in the choice of regional folk song material, are outlined.

The reaction of pyrrolo[3,2,1-ij]quinoline-1,2-diones with methyl (het)aryl ketones gave the corresponding 1-(het)arylmethylidenepyrroloquinolin-2-ones, and 1,3-dipolar cycloaddition of the latter to azomethine ylide generated from sarcosine and paraformaldehyde afforded 4-acyl-1,4′,4′,6′-tetramethylspiro[pyrrolidine-3,1′-pyrrolo[3,2,1-ij]quinolin]-2′(4′H)-ones. The synthesized compounds were evaluated for inhibitory activity against blood coagulation factors Xa and XIa.

The purpose of the article is to outline the features of the skill formation in folk song directing. Research methodology. While interpreting the possibilities of applying the director’s knowledge in folk music, the authors of the article use the method of analogy. The analytical method is used to identify the basic principles of creative project formation. Scientific novelty. The article systematizes the elements of folk songs directing and comprehensively characterizes the theatricalisation of folk songs as a part of a mass spectacle. Conclusions. The creation of his own project is very important for the development of the professional skills of a future choirmaster. The performing skills of a singer-choirmaster are associated with the competencies that require the disclosure of performance qualities, as well as the skills of ensemble and choral performance, the ability to understand and interpret music. The article demonstrates that during the training of students of "Folk choral art" specialization, creative skills should be realized in various forms that require the skills of screenwriting, directing. Special attention should be paid to the principle of theatricalisation of folk songs. The use of theatrical forms of presentation of the concert programme requires theoretical development of the script, elaboration of each element of the musical action. The choice of musical repertoire, the creation of an appropriate performance interpretation that would not only reproduce the essential content of a particular song, but also be an integral part of the concert programme need to be taken into consideration. The article reveals that the achievement of such a goal is possible under the condition of building a holistic drama and alternation of folk songs, taking into account the concept chosen by the choirmaster, with coherence in the use of costumes, elements of the ritual action, movements and gestures. The ways of music interpretation related to the authentic and psychological reading of the songs are considered, a wide range of scenography tools - scenery, lighting, costumes that will guarantee the attractiveness of the action, is analysed.

The article is devoted to defining new approaches to understanding the essence of modern inclusive higher education. In order to establish who needs special educational conditions today, a survey of students of the 1st, 3rd and 5th study years was carried out. It showed that most students today need help with communication and integration. Correlation analysis based on the data obtained from the survey gives every opportunity to assert that the links between the questions of it for certain groups of students (target groups of 17-18 years old and 19-20 years old) are pretty strong. Based on this, it was concluded that communication problems in groups of students decrease over time, but over a reasonably long period. Therefore, during the first years of university education, there is a necessity to talk not about inclusion but integration.Special attention was devoted to highlighting the problems of modern inclusive higher education, its socio-cultural aspect and its role in forming society in the future. In addition, instruments were proposed with the help of which it is possible to achieve the fundamental goals of inclusive education.

It is shown that during a porous Si film formation by metal-stimulated etching a barrier layer is formed on a monocrystal p-Si substrate. The rectifying properties of the semiconductor structure can be explained by the fixation of the Fermi level in the near-surface layer of porous Si due to a high concentration of electrically active defects (deep centers or traps). It causes to energy bands bending and the appearance of a potential barrier. The study of Raman scattering showed the absence of size effects and a change in the band gap in the porous Si film. Activation energies of deep centers by the temperature dependence of the current-voltage characteristics and deep level transient spectroscopy study were determined. Keywords: porous silicon, deep level, Raman scattering, current-voltage characteristics, deep level transient spectroscopy.

The paper develops the ideas centered around the proposition that high total factor productivity (TFP) is conducive to social cooperation by drawing the interests of economic and, in more general terms, social agents together. In the first part of the paper, a simple theoretical framework is presented that leads to a typology of social orders which is based upon the stimuli of social agents for cooperation and predation. In the second part, a tentative empirical analysis is conducted (panel-data regression with fixed effects) which provides a crude testimony for the plausibility of the theoretical claim that high TFP is associated with cooperation-fostering institutions. The third part of the paper elaborates on the results of empirical analysis and presents some further hypotheses which are concerned with two quite different subject-matters: on the one hand, with the role of TFP as a possible factor of social cooperation; on the other hand, with the typology of social orders proposed by North, Wallis and Weingast in their “Violence and Social Orders”. The latter theme is integrated in the discussion about TFP, cooperation and predation