44 research outputs found
Peculiaridades do comportamento do consumidor e seu impacto na qualidade de vida
The work features the relevance of the consumer behavior in the Russian economy and their impact on the life quality analysis. The research base on the Russia official statistical data and authors calculations. The authors reviewed a significant number of foreign studies on the life level and quality, as well as the study of consumer behavior. The authors conclusions are consistent with the results of international research teams. Factors that have a significant impact on consumer spending in the Russian economy, such as: cities population density, the access to services, the infrastructure development, a reduction (delay) in the salaries payoff – are singled out. Household consumer behavior in the Russian economy trends are shown, such as: the consumption rationalization, the constant expectation of higher food prices, an increased interest in e-commerce. A conclusion was drawn on the creation of favorable conditions for the development of import substitution in Russia.El trabajo presenta la relevancia del comportamiento del consumidor en la economía rusa y su impacto en el análisis de la calidad de vida. La base de investigación son los datos estadísticos oficiales de Rusia y los cálculos de los autores. Los autores revisaron un número significativo de estudios extranjeros sobre el nivel de vida y la calidad, así como el estudio del comportamiento del consumidor. Las conclusiones de los autores son consistentes con los resultados de los equipos internacionales de investigación. Los factores que tienen un impacto significativo en el gasto de los consumidores en la economía rusa, como la densidad de población de las ciudades, el acceso a los servicios, el desarrollo de infraestructura, una reducción (retraso) en el pago de salarios, se destacan. Se muestra el comportamiento de los consumidores domésticos en la economía rusa, como: la racionalización del consumo, la expectativa constante de precios más altos de los alimentos, un mayor interés en el comercio electrónico. Se llegó a una conclusión sobre la creación de condiciones favorables para el desarrollo de la sustitución de importaciones en Rusia.O artigo apresenta a relevância do comportamento do consumidor na economia russa e seu impacto na análise da qualidade de vida. A base de pesquisa é os dados estatísticos oficiais da Rússia e os cálculos dos autores. Os autores revisaram um número significativo de estudos estrangeiros sobre o padrão de vida e qualidade, bem como o estudo do comportamento do consumidor. As conclusões dos autores são consistentes com os resultados das equipes internacionais de pesquisa. Fatores que têm um impacto significativo sobre os gastos do consumidor na economia russa, tais como a densidade populacional das cidades, o acesso aos serviços, o desenvolvimento de infra-estrutura, a redução (atraso) no pagamento de salários, destacam-se Ele mostra o comportamento dos consumidores domésticos na economia russa, tais como: a racionalização do consumo, a expectativa constante de preços mais altos dos alimentos, um interesse maior no comércio eletrônico. Chegou-se a uma conclusão sobre a criação de condições favoráveis para o desenvolvimento da substituição de importações na Rússia
The Results of Plant Monitoring in the Semistozhki Area of Stavropol Region
Preserving biodiversity is a global problem that was reflected in the Convention on Biological Diversity which appeared in 1992. The adoption of the Convention was an answer to the intensified problem of a significant reduction in the diversity of genetic resources. Botanical gardens are the main centres for preserving the biodiversity of plants that solve the problem of preserving the gene pool. One of the main tasks of botanical gardens is to monitor plant populations in their natural habitats in situ. This paper describes the monitoring of the current state of peonies and sedges in the Semistozhki area of the Andropov district in the Stavropol region. The research determines the growing locations and the belongingness of species to plant associations in the vegetation variety of the Stavropol region. It also determines the species that may be treated as rare due to their limited distribution area. The territory is marked by the presence of Paeonia tenuifolia L., which is a tertiary relict, and Paeonia biebersteiniana Rupr., which is subendimic for Stavropol region. Rear species with low numbers that are not threatened by grave danger of extinction are also present. Carex hordeistichos Vill. and c. otrubae Podp. species in the area are small in number. Their populations in the area are inadequate with young, vegetative and strong specimens lacking. The limiting factors are represented by human agricultural activities. Several specimens of a narrow-leaved peony of pink colour and a big number of petals were planted on an experimental stretch of the botanical garden to continue the analysis ex-situ
Distance Learning as an Educational Trend in Higher Education
The case study research strategy describes variations in the educational and professional trajectories of part-time students in comparison with their attitude to distance learning, the goal of higher education, and their professional future of the individual. This research strategy makes it possible to present distance learning as a modern educational trend. It has been determined that in the system of continuing education, distance learning is (1) a tool for changing a profession, (2) part of a well-thought-out career strategy, (3) a guarantee of employment, (4) a way to legitimize a professional status, (5) a form that facilitates obtaining a diploma of higher education, (6) “future education”, education for the future. The subjective meanings of distance education in connection with motivation, the purpose of training, the attitude of students to it are revealed. For students receiving higher education, this is “self-education,” for those whose goal is a diploma, it is “formality”, “superficial mastering of disciplines.” The authors conclude that the consideration of correspondence education in the context of continuity allows us to identify trends in individualization, diversification (the diversity and variability of educational programs, creating opportunities for choice), informatization, and individualization. An assessment of the prospects for extramural higher education based on the experience of forced distance learning (March-June 2020) is given
Effect of Silver Nanoparticles on the Optoelectronic Properties of Graphene Oxide Films
The effect of Ag nanoparticles (NPs) on the optical and optoelectronic properties of films based on graphene oxide has been studied. In the presence of Ag NPs, the morphology, as well as the thickness of graphene oxide films, were not changed. When Ag NPs were added, a change in the shape and position of the absorption bands and Raman spectra of graphene oxide was observed. It is shown that with the addition of Ag NPs, the G band of graphene oxide shifts to low frequencies, which may be the result of the absence of separate double bonds, while the ID/IG ratio was not changed, as did the number of Gr layers. In the absorption spectrum of the films, along with the absorption band of graphene oxide, a shoulder was registered, which can be associated with the absorption of Ag NPs. The optical density of Gr films with plasmonic NPs is higher than without them. Measurements of the optoelectronic characteristics showed that, in the presence of Ag NPs, an increase in the values of the photocurrent of graphene oxide is observed. The sensitivity of graphene oxide films was increased by almost 20 times when plasmonic NPs were added to them, and the detection ability increased by 25 times. The results obtained can be used in the development of new photosensitive devices for optoelectronic and photocatalytic applications
THE EFFECT OF STRUCTURAL ENTRAPY ON THE STAMPAGING OF SHEETS FROM ALUMINUM ALLOYS
When optimizing the stamping process, it is important to establish patterns of formation of a homogeneous grain structure. The homogeneity of the structure of sheet semi.finished products determines their ability to sheet punching operations. A characteristic of the homogeneity of the structure can be the level of entropy.При оптимизации процесса штамповки актуальным является установление закономерностей формирования однородной зеренной структуры. Однородность структуры листовых полуфабрикатов определяет их способность к операциям листовой штамповки. Характеристикой однородности структуры может служить уровень энтропии
Analysis of Optical Properties of Posterior Surface of Cornea in Patients after Anterior Radial Keratotomy
Taking into account the constant increase in patients with age-related cataracts after radial keratotomy, a careful analysis of both the optical and anatomical properties of the cornea with the examination of the posterior surface is of particular importance.Aim. To analyze the optical properties of the posterior surface of the cornea in patients after anterior radial keratotomy. Materials and methods. An examination of 24 patients (48 eyes) with age-related cataracts of varying degrees of density, myopia and the presence of a previous anterior radial keratotomy or radial-tangential keratotomy in history. The average age of patients was 59.5 years (from 47 to 68), there were 19 women and 5 men.Results. The radius of curvature of the anterior surface in patients after anterior radial keratotomy was 9.45 ± 0.91 mm on average along the meridians, which is significantly more in comparison with these indices in control patients – 7.70 ± 0.19 mm (p = 0.0001). The ratio of the radii of the posterior cornea curvature to the anterior radius on average along the meridians in patients after anterior radial keratotomy was 1.07 ± 0.70, and in control patients – 1.20 ± 0.02 (p = 0.0001). The keratometric index in patients after anterior radial keratotomy was 1.3538 ± 0.0239, and in the control group – 1.3372 ± 0.0003 (p = 0.23).Conclusion. In patients after anterior radial keratotomy, keratometry of the posterior surface of the cornea is significantly higher than in the control. The ratio of the radius of curvature of the posterior cornea to the radius of curvature of the anterior cornea varies significantly after anterior radial keratotomy, which is due to a more pronounced flattening of the posterior cornea. The standard keratometric index (1.3375) is invalid for patients after anterior radial keratotomy and must be calculated individually for each patient when deciding on the operative treatment of cataracts
Structural changes of medium-tech economic sectors under digital transformation of industry
Objective: to describe certain structural changes in industry influenced by digitalization.Methods: general scientific, abstract-logical, dialectical, phenomenological methods, observation, and description.Results: the general statistical characteristics of digitalization in the processing industry are shown, based on the meta-analysis by HSE and Rosstat; two directions of structural changes in industry influenced by digitalization are identified: the growing digital maturity and increased use of the Russian solutions in the field of software and information-telecommunication technologies in general, including the respective equipment; and digitalization of communication processes in the field of sustainable development. Two technological features of industry digitalization are identified, namely: the platform nature and the use of the Russian technological solutions for further industry digitalization.Scientific novelty: it is proposed to consider the digital maturity indicators as an integral indicator of the development of a homogeneous group of economic agents; two directions of structural changes in the industrial sector among medium-tech industries are shown: firstly, the digital maturity growth and the increased use of the Russian solutions in the field of software and information-telecommunication technologies equipment; secondly, digitalization communication processes in the field of sustainable development.Practical significance: the clarification of the interrelationships between the processes of digitalization and industrial development will not only allow a more structured approach to the development of industrial policy research programs for medium-tech industries, but will also create a basis for deepening existing knowledge in this area (which can be used both in industrial companies themselves and in regional, federal, and international projects on digital transformation)
Approaches to managing logistics processes under digital economy
Objective: to review the main management models and approaches to the study of logistics processes in production ecosystems.Methods: abstract-logical, dialectical, phenomenological methods.Results: the main directions and methods of research in the field of digitalization of logistics processes are described; the accelerated growth of e-commerce and force majeure factors (epidemic, a complex of geopolitical factors) are identified as a driver for the development of solutions in the field of improving the efficiency of logistics processes in the Russian economy; promising directions for the development of logistics process management models are identified.Scientific novelty: it is shown that the directions of foreign authors’ research in the field of logistics are broader, while Russian researchers have a significant potential to search for new technological and methodological solutions in this area; the relevance of the research development in the field of logistics processes digitalization is shown, including that on the basis of predictive analysis models.Practical significance: the understanding of problems in the field of logistics, revealed in the work, makes it urgent to develop a set of projects in this area to increase the efficiency of existing digital ecosystems, and also creates a basis for further research in this area
Plasmon effect on triplet-singlet energy transfer in the dye-doped Langmuir-Blodgett films
The effect of silver plasmonic nanoparticles on triplet-singlet energy transfer in the donor-acceptor pair of organic dyes was studied. Layered dye films were prepared on the surface of glass and island silver films using the Langmuir-Blodgett method. Amphiphilic analogs of Rose bengal and polymethine dye were used as donor and acceptor of energy. A polymer monolayer was deposited between monolayers of donor and acceptor molecules to exclude the competing triplet-triplet energy transfer. The spectra of delayed fluorescence and phosphorescence of donor-acceptor films and the delayed luminescence lifetime of donor in these films have been measured. It is shown that a threefold increase in the fluorescence intensity and a twofold increase in the donor phosphorescence intensity are observed on silver island films. The successful triplet-singlet energy transfer is evidenced by both the quenching of donor centers and appearance of sensitized delayed fluorescence of the acceptor with the duration close to the donor triplet lifetime. In the presence of silver nanoparticles, in addition to enhancement in the intensity of the donor emission, an increase in the efficiency of tripletsinglet energy transfer was observed. The obtained results can be used in various optical devices
Basic conditions for care economy development in Russia
Objective: to describe the development of care economy within the sphere of socio-economic relations as a tool for increasing social capital in society. Methods: abstract-logical and dialectical, phenomenological methods. Results: in the scientific literature, care economy is described primarily as a part of the healthcare sector. The article considers it in the context of a broader range of socio-economic services. The article describes the main content of care economy as a sphere of socio-economic relations providing services that ensure normal life-restoring and/or improving health, improving life quality by maintaining more comfortable living conditions. The main reasons for care economy development are highlighted: 1) aging of the population; 2) high costs of providing care services in specialized medical institutions; 3) shadow services provided in the field of care economy. It is established that in the coming years care economy development will dictate certain conditions for the labor and education market development in this segment. Scientific novelty: it is shown that the main content of care economy is not limited to the sphere of medical care, but can be considered more broadly - including care for children, pets, etc.; the relevance of care economy development as a separate sphere of socio-economic relations is shown.Practical significance: the understanding of the content of care economy revealed in this work makes it urgent to create a state system for providing services in the field of care economy, and creates the basis for further research in this area