1,347 research outputs found
The Disciples of A.R Kovalevsky: Yu.G. Litvinenko
No full textВ статье освещается жизнь и научное наследие Ю.Г. Литвиненко (1929-1990) -одного из ведущих украинских индологов, ученика выдающегося ориенталиста А.П. Ковалевскго. Научное наследие Ю.Г Литвинвнко условно разделено на четыре рубрики; 1) труды по истории рабочего движения в Британской Индии; 2) сочинения гю истории индийского коммунистического движения; 3) работы по истории национально-освободительного движения народов Индии: 4) индологические публикации в Украинской советской энциклопедии. Автор пришел к выводу, что хотя Ю.Г Литвиненко и не выдвинул фундаментальных концепций истории индийского рабочего и национально-освободительного движения, внес посильный вклад в становление и развитие украинской индологии.The life and scientific heritage of one of thB leading Ukrainian indologist, a disciple of the prominent orientalist A.P. Kovalevsky, Yu.G. Litvinenko (1929-1990). There are studied in the article Yu.G. Litvinenko’s scientific heritage is conditionally divided into four parts: 1) works from the history of the labour movement in the British India; 2) essays on the history of Indian communist movement; 3) studies on the history of national liberation movement of Indian peoples; 4) indological publications in the Ukrainian Soviet Encyclopedia. The author concluded that though Yu.G. Litvinenko has not promoted any fundamental conception of the history of the Indian labour and national liberation movement he had made certain contributions in rise and development of Ukrainian indology
The Disciples of A.R Kovalevsky: Yu.G. Litvinenko
No full textВ статье освещается жизнь и научное наследие Ю.Г. Литвиненко (1929-1990) -одного из ведущих украинских индологов, ученика выдающегося ориенталиста А.П. Ковалевскго. Научное наследие Ю.Г Литвинвнко условно разделено на четыре рубрики; 1) труды по истории рабочего движения в Британской Индии; 2) сочинения гю истории индийского коммунистического движения; 3) работы по истории национально-освободительного движения народов Индии: 4) индологические публикации в Украинской советской энциклопедии. Автор пришел к выводу, что хотя Ю.Г Литвиненко и не выдвинул фундаментальных концепций истории индийского рабочего и национально-освободительного движения, внес посильный вклад в становление и развитие украинской индологии.The life and scientific heritage of one of thB leading Ukrainian indologist, a disciple of the prominent orientalist A.P. Kovalevsky, Yu.G. Litvinenko (1929-1990). There are studied in the article Yu.G. Litvinenko’s scientific heritage is conditionally divided into four parts: 1) works from the history of the labour movement in the British India; 2) essays on the history of Indian communist movement; 3) studies on the history of national liberation movement of Indian peoples; 4) indological publications in the Ukrainian Soviet Encyclopedia. The author concluded that though Yu.G. Litvinenko has not promoted any fundamental conception of the history of the Indian labour and national liberation movement he had made certain contributions in rise and development of Ukrainian indology
Topics in Energy Release and Particle Acceleration in the Heliosphere
No full textThis thesis investigates both the release of energy in solar flares, and the acceleration and transport of particles in various astrophysical situations. While numerical simulations are central to this thesis, these are always motivated by analytical arguments.
A review of flare energy release is given in Chapter 2, with results presented in Chapters 3 and 4. The main goal of the flare work is to investigate the effect of viscosity on energy release rates. Scaling arguments and exact solutions of the magnetohydrodynamic equations are used to interpret the results of two-dimensional numerical simulations of magnetic reconnection. The results support viscous energy dissipation accounting for a significant fraction of flare energy release.
Chapter 5 contains an introduction to astrophysical particle acceleration, using the Fokker-Planck formulation. The theory introduced in this chapter is used to study electron transport in solar flare loops (Section 5.5). A key aspect of the analysis is the expression of the Fokker-Planck equation as a system of stochastic differential equations. A generalisation to the flare loop hard X-ray emission prediction of Conway et al. (1998) is obtained, giving a stronger dependence on density for dispersed initial distributions.
Chapter 6 uses the methods of the previous chapter to study the acceleration of cosmic-rays at the heliospheric termination shock. The applicability of the focused acceleration mechanism of Schlickeiser and Shalchi (2008) is examined using numerical simulations, which are interpreted using analytical arguments based on averaging the stochastic equations. The results show significant limitations in assuming a near-isotropic distribution, a requirement for the focused acceleration mechanism. In addition, momentum diffusion provides a significant effect that cannot be neglected. The theory is extended to include focused deceleration and pure momentum diffusion
Long-term macro-econometric models
No full textVoitenko S. V. Long-term macro-econometric models / S. V. Voitenko, A. Litvinenko // Тиждень науки-2019. Електротехнічний факультет. Тези доповідей науково-практичної конференції, Запоріжжя, 15-19 квітня 2019 р. / Редкол. : В. В. Наумик (відпов. ред.) Електрон. дані. – Запоріжжя : НУ «Запорізька політехніка», 2019. – С. 254-255
The effect of the dynamic adsorption mode on impedance of composite structures with porous silicon
No full textImpedance and optical properties of pressed composites based on microcrystalline and nanoporous silicon powders were studied. Porous silicon crystallites were obtained by stain etching of initial microcrystalline silicon powder. Oxygen passivation of the surface during porous-powder formation provided stability of composite characteristics. An analysis of experimental dependences of the impedance in a frequency range of 1-106 Hz allowed separation of contributions of grain bulk and crystallite interfaces to the total composite conductivity. The results of the study of the time dependences of the impedance were used to determine the variation rates of electrical parameters of composite structures under dynamic adsorption-desorption influence of external reactants (H2O and C2H5OH). © 2010 Pleiades Publishing, Ltd
Hierarchy of Bases for Serendipity Finite Element with the Biquadratic Interpolation
No full textHierarchy of Bases for Serendipity Finite Element with the Biquadratic Interpolation / I. O. Astionenko, O. I. Litvinenko, G. Ya. Tuluchenko, N. V. Osipova, A. N. Khomchenko // Book of Abstract. Eight International Conference on Application of Mathematics in Technical and Natural Sciences : Euro-American Consortium for Promoting the Application of Mathematics in Technical and Natural Sciences / ed. by M. Todorov. – Albena, Bulgaria, 2016. – P. 9–10
Theoretical methods to the study of adaptation pupils to the educational environment in critical periods of development
No full textЛитвиненко Наталья Валерьевна, доктор психологических наук, профессор, заведующий кафедрой педагогики дошкольного и начального образования, Оренбургский государственный педагогический университет, г. Оренбург, [email protected]. Natalya V. Litvinenko, Doctor of Psychological Science, Professor, Head of department of Pedagogy of preschool and primary education, Orenburg State Pedagogical University, Orenburg, [email protected]На основе анализа научной литературы в статье констатируется, что в настоящее время имеет место экстенсивно-эмпирический путь развития проблемы адаптации школьников к образовательной среде, накопление, как правило, фрагментарных эмпирических данных и их описание. В связи с этим актуальным для педагогической психологии является методологическое согласование этих данных для обоснования теоретических подходов к исследованию адаптации школьников к образовательной среде в критические периоды развития. Осмысление знаний об адаптации, которые получены в комплексе наук о человеке, позволяют рассматривать ее как процесс взаимодействия личности и социальной среды, содействующий усвоению личностью общественных норм и ценностей, формированию отношения к ним, освоению способов деятельности и типов межличностных отношений и реализации личностного потенциала. Исходя из этого, обосновываются теоретические подходы к исследованию адаптации школьников к образовательной среде в критические периоды развития – антропологический, субъектный и системный подходы. В статье отмечается, что в совокупности данные подходы позволяют организовать изучение адаптационного процесса с учетом возрастно-типологической (социальная ситуация развития) и индивидуальной (личностные особенности) компонент психического развития ребенка и определить комплекс психологических факторов, условий успешности данного процесса, его внутриличностных детерминант. The author analysed scientific literature and made the conclusion in the article that now extensive-empirical way of development of the problem of the pupil's adaptation to educational environment exists in science. The accumulation of fragmental empirical facts and their description also take place. In connection with it the relevant problem of pedagogic psychology is the methodic concordance of these facts for substantiation of theoretical methods studying the pupil's adaptation to educational environment in different critical periods of development. The substantiation of the knowledge of the adaptation which was got by complex of sciences about the human being let to consider the adaptation to be the process of the interaction between the person and social environment. This process promotes the adoption of the social norms, values and the formation of the attitude to them, the adoption of the methods of activity and types of the interpersonal relations and the realization of the personal potential. In the article the author proves his choice of three methods: anthropological, systematic, subjective. And with their help the author investigates the adaptation of the pupils for the educational environment during the critical periods of development. These methods let the author to study the adaptation process with taking into account the two components of the child’s psychological development: the social situation of the development and the personal peculiarities. The author pointed the psychology factors, the conditions of the successful adaptation process and it’s inner personal determinants
The Impact of the Murder of Alexander Litvinenko on British Policy towards Russia
No full textBakalářská práce s názvem "Vliv vraždy Alexandra Litviněnka na britskou politiku vůči Rusku" se zabývá problematikou britské politiky k Rusku v reakci na vraždu Alexandra Litviněnka, která významně ochladila vzájemné vztahy. Práce se soustředí na analýzu bezpečnostních a diplomatických kroků britské vlády a jejich souvislost s ekonomickými strategiemi, jež je interpretována skrze teoretický rámec práce - teorii kanadského politologa Kaleviho Holstiho. Holstiho teorie, která pojednává o interakci bezpečnostních a ekonomických opatření států v situaci vnějšího ohrožení, poskytuje vodítko k porozumění podoby britské reakce. V rámci osvětlení kontextu je poskytnut přehled vzájemných vztahů a britské politiky vůči Rusku před událostí a podrobný popis života i tragické smrti Alexandra Litiviněnka. Zkoumanou problematikou je období okolo jednoho a půl roku po vraždě, aby se výzkum vyhnul vlivu jiných událostí na britskou politiku. Na základě prostudované sekundární literatury a dostupných primárních zdrojů je výsledkem této práce analýza politiky britské vlády vůči Rusku v návaznosti na incident a posouzení nerovnoměrnost reakce v různých dimenzích zahraniční politiky ve světle teorie Kaleviho Holstiho o chování států při vnějším ohrožení.The bachelor thesis titled "The Impact of the Murder of Alexander Litvinenko on British Policy towards Russia" deals with the issue of British policy towards Russia in response to the murder of Alexander Litvinenko, which significantly cooled bilateral relations. The thesis focuses on the analysis of the security and diplomatic actions of the British government and their connection with economic strategies, which is interpreted through the theoretical framework of the thesis - the theory of Canadian political scientist Kalevi Holsti. Holsti's theory, which discusses the interaction of states' security and economic measures in the face of external threats, provides a guide to understanding the shape of the British response. To illuminate the context, an overview of the British policy towards Russia prior to the event is provided, as well as a detailed account of the life and tragic death of Alexander Litvinenko. The period of around one and a half year after the murder is examined to avoid the influence of other events on British policy. Based on the secondary literature studied and the primary sources available, the outcome of this thesis is an analysis of the British government's policy towards Russia in the wake of the incident and an assessment of the unevenness of the response across different...Department of European StudiesKatedra evropských studiíFakulta sociálních vědFaculty of Social Science
Wave energy dissipation by anisotropic viscosity in magnetic x-points
No full textThe viscous dissipation of axial field disturbances in planar magnetic X-points is examined. It is emphasized that an accurate treatment requires a nonisotropic tensor viscosity whose components are governed by the local magnetic field. Numerical solutions are constructed, which compare the buildup of viscous forces using the tensor formulation against a simplified model based on conventional shear viscosity. The scaling of the global energy-loss rate with the viscosity coefficient is shown to follow for both the traditional shear viscosity and the Braginskii bulk viscosity. This suggests that viscous wave dissipation can occur quite rapidly, in a few tens of Alfvén times. The results imply that large-scale disturbances, generated by magnetic reconnection in the solar corona, should dissipate in a time on the order of a few minutes and significantly contribute to coronal heating
Particle acceleration scalings based on exact analytic models for magnetic reconnection
No full textObservations suggest that particle acceleration in solar flares occurs in the magnetic reconnection region above the flare loops. Theoretical models for particle acceleration by the reconnection electric field, however, employ heuristic configurations for electric and magnetic fields in model current sheets, which are not solutions to the MHD reconnection problem. In the present study, particle acceleration is discussed within the context of a self-consistent MHD reconnection solution. This has the advantage of allowing poorly constrained local parameters in the current sheet region to be expressed in terms of the boundary conditions and electric resistivity of the global solution. The resulting acceleration model leads to energy gains that are consistent with those for high-energy particles in solar flares. The overall self-consistency of the approach is discussed
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