The Didactic Potential of University Electronic Information and Educational Environment in the Context of a Pandemic

The article outlines the possibilities of using a University Electronic Information-Educational Environment (EIEE) that facilitates the University educational process in the context of a pandemic considering the variety of applicable e-learning tools and difficulties encountered by teachers and students in organizing and implementing distance learning within this period. The major objective of the article is revealing the didactic potential and technologies for providing remote access to University educational resources for arranging the educational process. Study results. The study identified E-resources and electronic environment activities that found to be the most popular between educational process participants in the period of forced transition to distance learning. Besides, the authors list the main difficulties in distance learning arrangement and suggested ways in their overcoming aided by EIEE didactic possibilities and potential. The principal research methods are questionnaire survey, expert assessment method and statistical processing of quantitative research results. The practical implications of the study comprise recommendations development for distance learning arrangement providing for modifying various components of students’ training system in higher education institutions, which is especially important not only in the context of a pandemic, but also under standard academic situations. The paper sets the direction of further research in upgrading the education system. The materials of the article can be helpful to teachers of higher educational institutions, further education establishments, to heads of educational institutions and school teachers in resolving the issues of organizing educational activities in the context of a pandemic for successful fulfillment of the basic educational programs

Innovative trends in recreation: aspects of psychoanalysis and art resources

Purpose: the problem of updating the art features of psychoanalytic concepts in the perspective of innovations in the recreation. Material & Methods: theoretical analysis and synthesis of domestic and foreign publications on the research problem. Results: analyzed current trends current research in the field of health and recreational activities. The paper considers the classical aspects of the art modification of psychoanalysis in the context of innovation strategies in recreation. Conclusions: theoretically probable positive effect of the implementation of the ideas of psychoanalysis and possibilities of art in productive innovation recreative process

Changes in Profiles of Classes and of Individual Polyphenols in Leaves of <i>Spiraea chamaedryfolia</i> and <i>Spiraea media</i> along an Altitudinal Gradient

Plants in high-altitude habitats are exposed to severe environmental stressors, including extreme temperatures and irradiation, which can have wide-ranging effects on changes of secondary-metabolite profiles in higher plants. Altitude-related variation of levels of polyphenols in organs of medicinal and food plant species has not yet been investigated sufficiently. This study was focused on variation in quantitative profiles of classes and of individual biologically active phenolic compounds in leaf extracts of resource species Spiraea chamaedryfolia and Spiraea media from the family Rosaceae in coenopopulations of the Altai Mountains, along an altitudinal gradient. High-performance liquid chromatography revealed 22 polyphenolic compounds in the extracts of S. media leaves, with the main polyphenolic compounds being flavonols. Sixteen compounds were found in S. chamaedryfolia leaf extracts, and the major ones were flavonols and a flavanone. Opposite responses to changes in the altitude-associated growth conditions were documented for levels of some individual polyphenolic compounds. With an increase in altitude, concentrations of chlorogenic acid and of flavanone in the extracts of S. chamaedryfolia leaves significantly increased, while concentrations of cinnamic acid, astragalin, and kaempferol diminished. A statistically significant positive correlation between the altitude of plant habitats and total levels of polyphenols and phenolcarboxylic acids was detected. In leaf extracts from S. media, an altitude increase was significantly positively correlated with astragalin, avicularin, and cinnamic acid levels and negatively correlated with hyperoside concentration

The Didactic Potential of University Electronic Information and Educational Environment in the Context of a Pandemic

The article outlines the possibilities of using a University Electronic Information-Educational Environment (EIEE) that facilitates the University educational process in the context of a pandemic considering the variety of applicable e-learning tools and difficulties encountered by teachers and students in organizing and implementing distance learning within this period. The major objective of the article is revealing the didactic potential and technologies for providing remote access to University educational resources for arranging the educational process. Study results. The study identified E-resources and electronic environment activities that found to be the most popular between educational process participants in the period of forced transition to distance learning. Besides, the authors list the main difficulties in distance learning arrangement and suggested ways in their overcoming aided by EIEE didactic possibilities and potential. The principal research methods are questionnaire survey, expert assessment method and statistical processing of quantitative research results. The practical implications of the study comprise recommendations development for distance learning arrangement providing for modifying various components of students’ training system in higher education institutions, which is especially important not only in the context of a pandemic, but also under standard academic situations. The paper sets the direction of further research in upgrading the education system. The materials of the article can be helpful to teachers of higher educational institutions, further education establishments, to heads of educational institutions and school teachers in resolving the issues of organizing educational activities in the context of a pandemic for successful fulfillment of the basic educational programs.En el artículo se esbozan las posibilidades de utilizar un Entorno Educativo de Información Electrónica Universitaria (EIEE) que facilite el proceso educativo de la Universidad en el contexto de una pandemia, teniendo en cuenta la variedad de instrumentos de aprendizaje electrónico aplicables y las dificultades con que tropiezan los profesores y los estudiantes para organizar y aplicar la enseñanza a distancia en este período. El principal objetivo del artículo es revelar el potencial didáctico y las tecnologías para proporcionar acceso a distancia a los recursos educativos de la Universidad para organizar el proceso educativo. Resultados del estudio. En el estudio se identificaron los recursos electrónicos y las actividades del entorno electrónico que resultaron ser las más populares entre los participantes en el proceso educativo en el período de transición forzosa a la enseñanza a distancia. Además, los autores enumeran las principales dificultades en la organización de la enseñanza a distancia y sugieren formas de superarlas con la ayuda de las posibilidades y el potencial didáctico del EIEE. Los principales métodos de investigación son la encuesta por cuestionario, el método de evaluación por expertos y el procesamiento estadístico de los resultados de la investigación cuantitativa. Las consecuencias prácticas del estudio comprenden la elaboración de recomendaciones para la organización de la enseñanza a distancia que prevean la modificación de diversos componentes del sistema de formación de los estudiantes en las instituciones de enseñanza superior, lo que es especialmente importante no sólo en el contexto de una pandemia, sino también en situaciones académicas normales. El documento establece la dirección de las investigaciones futuras para mejorar el sistema educativo. Los materiales del artículo pueden ser útiles para los profesores de las instituciones de educación superior, los establecimientos de educación superior, los directores de las instituciones educativas y los profesores de las escuelas para resolver los problemas de organización de las actividades educativas en el contexto de una pandemia para el cumplimiento exitoso de los programas educativos básicos

The simulation of carbon material structure based on polyacrylonitrile obtained under IR heating

Since recently an economically efficient method including IR heating has been used for the synthesis of polymer based functional carbon nanocrystalline materials. One of the most widely used polymers having a broadest range of physicochemical properties and various applications is polyacrylonitrile (PAN). Under IR heating PAN undergoes chemical and structural transformations and a polyconjugated system forms with an increase in heating intensity. However, there are still no data on the quantitative and qualitative effects of carbon, nitrogen, hydrogen or metal atoms on the structural stability and configuration of the PAN based carbon material. We have for the first time determined using the MNDO semiempirical quantum chemical model for a carbon material (CM) structure based on heat treated polyacrylonitrile (PAN) that an increase in the N content from 14 to 18 atoms in CM monoatomic layers C46N14H10, C44N16H12, and C42N18H14 and in the H content from 12 to 22 atoms in CM monoatomic layers C44N16H12 and C44N16H22 leads to a decrease in the binding energy (Eb) from 7.40 and 7.12 to 6.88 and 6.25 eV, respectively, and to an increase in the difference between the maximum and minimum bond length (Δl), between the maximum and minimum valence angle (Δθ), and between the maximum and minimum local charge (Δq) from 0.176 Е, 12.0°, and 0.487 to 0.238 Е, 20.8°, and 0.613, respectively, and promotes curving of the CM structure. Quantum chemical simulation results are confirmed by the element analysis of the CM specimens and FeNi3/C nanocomposite. When the IR heating temperature was increased from 30 to 500 °С, the concentrations of N (СN) and H (СH) in the CM and in the FeNi3/C nanocomposite decreased from 27 to 18 and 10 wt% and from 6 to 1 and 0.5 wt%, respectively