412 research outputs found

    Educational ecosystem in conditions of digital transformation

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    Currently, there is an active digital transformation of management practices and processes in the world, associated with the emergence of an ecosystem approach. The ecosystem approach is being actively implemented in all spheres of the economy and society. This phenomenon has not bypassed the education sphere. The article considers the priority tasks and trends in the development of education that meet the global challenges of the changing world economy, and aimed at developing a new paradigm of training throughout life. The purpose of the study is to analyze the factors influencing the creation of an educational ecosystem of the future, designed to form and develop a culture of lifelong learning, and, consequently, to the need for the introduction of network models based on elements of joint and voluntary learning. The research methods are comparative and causal analysis of management decisions. As a result of the study, the authors identify the elements of the educational and personnel ecosystems that affect the business processes of an organization in the context of digital transformation. It will significantly accelerate the possibilities of cooperation between the real sector of the economy, the educational ecosystem and the state within the framework of the above changes. The ecosystem transformation of education will allow to educate a new generation that will lead the transition to the effective and harmonious development of world civilization. The ecosystem approach will change the traditional ways of learning, discovering, acting on the principles of cooperation. These changes are aimed at dialogue in terms of business training in the conditions of digitalisation of the economy between the educational ecosystem and the business environment. Therefore, it is the personnel service for business processes that should be given increased attention to representatives of the real sector of the economy, the scientific community and educational institutions

    Spin correlations and Dzyaloshinskii-Moriya interaction in Cs2_2CuCl4_4

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    We report on electron spin resonance (ESR) studies of the spin relaxation in Cs2_2CuCl4_4. The main source of the ESR linewidth at temperatures T150T \leq 150 K is attributed to the uniform Dzyaloshinskii-Moriya interaction. The vector components of the Dzyaloshinskii-Moriya interaction are determined from the angular dependence of the ESR spectra using a high-temperature approximation. Both the angular and temperature dependence of the ESR linewidth have been analyzed using a self-consistent quantum-mechanical approach. In addition analytical expressions based on a quasi-classical picture for spin fluctuations are derived, which show good agreement with the quantum-approach for temperatures T2J/kB15T \geq 2J/k_{\rm B} \approx 15 K. A small modulation of the ESR linewidth observed in the acac-plane is attributed to the anisotropic Zeeman interaction, which reflects the two magnetically nonequivalent Cu positions

    Adaptation of the sulfophosphovanillin method of analysis of total lipids for various biological objects as exemplified by <i>Drosophila melanogaster</i>

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    Lipid metabolism is crucial in physiology. In recent decades the model object Drosophila melanogaster has been actively used in the study of the fundamental issues of lipid metabolism and its disorders, including obesity, as well as in the search for therapeutic goals for the treatment of metabolic disorders in humans. Quick and accurate quantification of lipid content is an important step in solving these problems. For the first time the method of quantitative measurement of total lipids with the use of the sulfophosphovanillin (SPV) method was described by Zöllner and colleagues in 1962, and adapted for insects by Van Handel on females of the yellow fever mosquito Aedes aegypti. The advantages of this method compared to traditional gravimetric and chromatographic methods of analysis are the use of a small amount of biological material, lack of need for complex manipulations with the sample, its high sensitivity, reproducibility and simplicity of implementation with a minimum set of equipment. Here, a modification of the Van Handel protocol is described, which allows the method to be adapted for quantitative determination of total lipids for various organisms as exemplified a widely used model, D. melanogaster. To test the effectiveness of the modified method, we measured the content of total lipids in D. melanogaster females carrying hypomorphic mutations of the dilp6 and dfoxo insulin signaling pathway genes compared to the wild-type Canton-S line, and showed that dilp6 took part in the regulation of fat metabolism, while dfoxo did not. The results obtained emphasize the effectiveness of the colorimetric method with the use of SPV reaction and spectrophotometry for the quantitative analysis of total lipids

    The neuroendocrine stress-response in insects: the history of the development of the concept

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    The neuroendocrine stress-response is an effective defense mechanism against adverse influences of various nature. This reaction is universal and appears in response to stimuli that are unusual not just for living and habitat of the species, but also for each population. Here we review a progressive change of theoretical concepts, approaches and methods of research in this scientific field: beginning with the development of the stress concept by H. Selye and up to the present day. In 1982 H. Selye defined stress as a combination of stereotypical phylogenetic programmed  reactions of the organism that are caused by any strong, superstrong or extreme influences and are followed by a reorganization of the organism’s adaptive forces. The stress-causing agent was named a stressor. In the dy namics of the complex of nonspecific protectiveadaptive reactions that respond to a stressful influence aimed at cultivating the organism’s resistance to any factor, it is possible to logically identify three stages (“the Selye triad”): 1) alarm state, 2) resistance state, 3) exhaustion state. The duration and the expression of each stage can vary depending on the nature and strength of the stressor agent, the species of the animal and the physiological state of the organism. The lack of a hypothalamic-pituitary-adrenocortical system in insects was considered a proof of their inability to develop a stress reaction of the warm-blooded animals’ type. Nevertheless, since the early 1980s, enough evidence of the development of stress reaction in insects has been gathered, which emphasizes the conservative nature of the stress reaction in mammals and insects. The similarity in the neurochemical and physiological changes in invertebrates and vertebrates in response to a stressful influence indicates that the response to a stressor is a complex of ancient mechanisms preserved in evolution. Insects present unique opportunities for experimentation, which can allow us to understand the basic mechanisms of stress reactions. In insect larvae the mechanism of stress reaction has been studied in detail. In this century, the main efforts of researchers are aimed at studying the mechanisms of stress reaction in imago and genetic control of its individual links. The study of stress reaction in insects has both theoretical importance, as it demonstrates the convergence of evolutionary pathways of adaptive transformations in such distant taxa as insects and mammals, and practical importance, since the patterns of this reaction’s mechanisms can be used in modeling hereditary or acquired human diseases, in developing breeding methods for economically valuable insects and in finding ways to fight insect pest

    Features of Financial and Economic Development in the Period of Coronavirus: Experience of the Baltic States as Members of the European Union

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    The combination of two types of crisis: epidemiological and economic creates a fundamentally new and difficult situation for European integration. The authors do not share a view suggesting a qualitative weakening or even a complete disintegration of the European Union. However, the processes taking place are not indicative of the ordinary nature of the problems. In these circumstances, contradictions are escalating not only between North and South, which has been much written about recently, but also between West and East of the EU. “East’ includes the Baltic states in dire need of financial resources right now

    «Зеленое» финансирование и ESG: возможность для устойчивого социально-экономического развития

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    The implementation of the sustainable development strategy and the formation of a “green” economy model provide for the reorientation of financial resources, accounting by economic entities and public authorities and management of ESG-principles and the development of “green” financing tools.The purpose of the paper is to develop theoretical provisions and modeling of the impact of “green” financing on the socio-economic development of the subjects of the Russian Federation.Methods of data mining were used with temporary delays and corresponding lags responses of endogenous indicators, as well as cluster and correlation analysis. The result of the study was the specification of the economic content of the definition of “green” financing, as well as the construction of econometric models of the degree of interrelationship between “green” financing and the socio-economic development of the regions of Russia. The authors described the economic content of the definition of “green” financing, developed econometric models of the degree of interdependence of “green” financing and socioeconomic growth of Russia’s regions, calculated an integral indicator of sustainable socio-economic development of the regions of the Russian Federation taking into account ESGfactors (social risks, environmental risks, quality of management). Clustering of Russian regions according to the level of influence of “green” financing on their socio-economic development has also been carried out.The article concludes that the relationship between the level of socio-economic development of the regions of the Russian Federation and the volume of “green” financing is direct, strong, and can be expressed by increasing linear regression. The prospects for further research may be related to the assessment of the real needs of the volumes of “green” financing in the context of ensuring sustainable economic growth.Реализация стратегии устойчивого развития и формирование модели «зеленой» экономики предусматривают переориентацию финансовых ресурсов, учет хозяйствующими субъектами и органами государственной власти и управления ESG-принципов и развитие инструментов «зеленого» финансирования.Цель работы —  развитие теоретических положений и моделирование влияния «зеленого» финансирования на социально-экономическое развитие субъектов Российской Федерации.Использованы методы интеллектуального анализа данных с учетом временных запаздываний и соответствующих лаговых откликов эндогенных показателей, а также кластерный и корреляционный анализ. Авторы конкретизировали экономическое содержание дефиниции «зеленое» финансирование, построили эконометрические модели степени взаимосвязи «зеленого» финансирования и социально-экономического развития регионов России, рассчитали интегральный показатель устойчивого социально-экономического развития регионов РФ с учетом ESG-факторов (социальные риски, экологические риски, качество управления). Также осуществлена кластеризация регионов России по уровню влияния «зеленого» финансирования на их социально-экономическое развитие.Сделан вывод о том, что связь между уровнем социально-экономического развития регионов РФ и объемом «зеленого» финансирования —  прямая, сильная, может быть выражена возрастающей линейной регрессией. Перспективы дальнейших исследований могут быть связаны с оценкой реальных потребностей объемов «зеленого» финансирования в контексте обеспечения устойчивого экономического роста

    Structural, thermodynamic, and local probe investigations of a honeycomb material Ag3_{3}LiMn2_{2}O6_{6}

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    The system Ag[Li1/3_{1/3}Mn2/3_{2/3}]O2_{2} belongs to a quaternary 3R-delafossite family and crystallizes in a monoclinic symmetry with space group C2/mC\,2/m and the magnetic Mn4+^{4+}(S=3/2S=3/2) ions form a honeycomb network in the abab-plane. An anomaly around 50 K and the presence of antiferromagnetic (AFM) coupling (Curie-Weiss temperature θCW51\theta_{CW}\sim-51 K) were inferred from our magnetic susceptibility data. The magnetic specific heat clearly manifests the onset of magnetic ordering in the vicinity of 48\,K and the recovered magnetic entropy, above the ordering temperature, falls short of the expected value, implying the presence of short-range magnetic correlations. The (ESR) line broadening on approaching the ordering temperature TNT_{{\rm N}} could be described in terms of a Berezinski-Kosterlitz-Thouless (BKT) scenario with TKT=40(1)T_{{\rm KT}}=40(1) K. 7^{7}Li NMR line-shift probed as a function of temperature tracks the static susceptibility (Kiso_{iso}) of magnetically coupled Mn4+^{4+} ions. The 7^{7}Li spin-lattice relaxation rate (1/TT1_{1}) exhibits a sharp decrease below about 50 K. Combining our bulk and local probe measurements, we establish the presence of an ordered ground state for the honeycomb system Ag3_{3}LiMn2_{2}O6_{6}.Our ab-initio electronic structure calculations suggest that in the abab-plane, the nearest neighbor (NN) exchange interaction is strong and AFM, while the next NN and the third NN exchange interactions are FM and AFM respectively. In the absence of any frustration the system is expected to exhibit long-range, AFM order, in agreement with experiment.Comment: 11 pages, 13 figures, accepted in Phys Rev

    INFLUENCE OF ORGANIZATIONAL CULTURE ON CORPORATE BRAND

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    Brand, being a significant intangible resource, requires special attention not only from marketers, but also from the management of the organization, as its formation affects various aspects of production and economic activity. The given review of the Russian and foreign points of view on interrelation of organizational culture of corporation and its brand, allows us to make a conclusion about necessity of further in-depth studying of this issue. The mutual influence of the organizational culture of the corporation and its brand at the deep level has been revealed and substantiated in the article. The study results of the influence of the organizational culture main components such as corporate culture, corporate social responsibility, on the corporation brand, – have been reflected. Special attention has been paid to the effective interaction with the media, which are a brand guide for the target audience

    The transcription factor dFOXO controls the expression of insulin pathway genes and lipids content under heat stress in <i>Drosophila melanogaster</i>

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    The insulin/insulin-like growth factor signaling (IIS) pathway is one of the key elements in an organism’s response to unfavourable conditions. The deep homology of this pathway and its evolutionary conservative role in controlling the carbohydrate and lipid metabolism make it possible to use Drosophila melanogaster for studying its functioning. To identify the properties of interaction of two key IIS pathway components under heat stress in D. melanogaster (the forkhead box O transcription factor (dFOXO) and insulin-like peptide 6 (DILP6), which intermediates the dFOXO signal sent from the fat body to the insulin-producing cells of the brain where DILPs1–5 are synthesized), we analysed the expression of the genes dilp6, dfoxo and insulin-like receptor gene (dInR) in females of strains carrying the hypomorphic mutation dilp641 and hypofunctional mutation foxoBG01018. We found that neither mutation influenced dfoxo expression and its uprise under short-term heat stress, but both of them disrupted the stress response of the dilp6 and dInR genes. To reveal the role of identified disruptions in metabolism control and feeding behaviour, we analysed the effect of the dilp641 and foxoBG01018 mutations on total lipids content and capillary feeding intensity in imago under normal conditions and under short-term heat stress. Both mutations caused an increase in these parameters under normal conditions and prevented decrease in total lipids content following heat stress observed in the control strain. In mutants, feeding intensity was increased under normal conditions; and decreased following short-term heat stress in all studied strains for the first 24 h of observation, and in dilp641 strain, for 48 h. Thus, we may conclude that dFOXO takes part in regulating the IIS pathway response to heat stress as well as the changes in lipids content caused by heat stress, and this regulation is mediated by DILP6. At the same time, the feeding behaviour of imago might be controlled by dFOXO and DILP6 under normal conditions, but not under heat stress

    Professional Career of a Teacher as a Psychological and Pedagogical Problem

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    В статье рассматривается понятие профессиональная карьера педагога, сущность профессиональной карьеры педагога, проводится контент-анализ данного понятия с точки зрения психолого-педагогической науки.The article deals with the concept of a professional career of a teacher, the essence of a professional career of a teacher, and provides a content analysis of this concept from the point of view of psychological and pedagogical science
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