Food security and import substitution: major strategic objectives of contemporary agricultural policy

Rural areas and the agricultural sector are currently experiencing a radically new social and economic situation which barely fits the existing national agricultural policy as a long-term instrument for stimulating the agri-food market and government’s support of the agrarian sector and, primarily, agriculture that underlies it. In the age of globalization of national agri-food markets, food supply security based on import substitution can be ensured in a macro-economic environment that favors the development of a competitive agricultural industry. The main factor preventing the industry from developing is the unequal inter-industrial exchange biased against the rural economy. The article proposes the author’s simple tried and tested schema for evaluating how inter-industry pricing relationships and governmental financial support (in the form of subsidies) to agricultural organizations affect their margins. The evaluation leads to the following conclusions: – Given its real contribution to the national economy, the agro-industry is self-sufficient for its own development, i.e. the state objectively has the potential to increase its expenses on the elimination of the negative consequences from an unequal inter-industry exchange; – Federal expenditures on such state support must secure a margin for agricultural goods producers that enables stimuli for workers’ efficiency and an affordable credit system for the technical and technological upgrade of the facilities required for the production of competitive goods; – The issues of competitive growth of agricultural products require solutions primarily on a federal scale. An essential factor of competitive growth of individual types of national food and agricultural raw materials should involve science proven EEU agricultural treaties. The article discusses the major priorities in developing a common agricultural policy in the new integration institution

THE INFLUENCE OF FOLK DANCING ON THE AESTHETIC DEVELOPMENT OF PRESCHOOL AGE CHILDREN

The influence of folk dancing on the aesthetic development of preschool age children is investigated. For understanding this issue, the age peculiarities of preschool age children are examined. In the process of studying the problem, methodological and psycho-pedagogical literature is studied. Ideas and views of outstanding pedagogues and psychologists of the past on the aesthetic development of preschool age children are briefly researched. Two groups of the social tasks, typical of aesthetic education, are formed; in the process of teaching folk dances, the means of aesthetic education are disclosed and the methods of aesthetic education are characterized. The methods of teaching folk dancing at the choreography lessons are described.Keywords: folk dance, aesthetic education, children, preschool age, teacher.кандидат педагогічних наук, Алтухов В. А. Вплив народних танців на естетичний розвиток дітей дошкільного віку/ Харківський національний педагогічний університет імені Г.С. Сковороди, Україна, Харків Досліджено вплив народних танців на естетичний розвиток дітей дошкільного віку. Для осмислення цього питання розглянуто вікові особливості дітей дошкільного віку. У процесі дослідження заявленої проблеми була вивчена методична та психолого-педагогічна література. Коротко досліджено ідеї та погляди видатних педагогів і психологів минулого щодо естетичного розвитку дітей дошкільного віку. Сформульовано дві групи соціальних завдань, які має естетичне виховання; розкрито засоби естетичного виховання в процесі навчання народним танцям та охарактеризовані методи естетичного виховання. Схарактеризовано методи навчання народному танцю на уроках хореографії. Ключові слова: народний танець, естетичне виховання, діти, дошкільний вік, педагог.Кандидат педагогических наук, Алтухов В. А.  Влияние народных танцев на эстетическое развитие детей дошкольного возраста / Харьковский Национальный педагогический университет имени Г. С. Сковороды, Украина, ХарьковИсследовано влияние народных танцев на эстетическое развитие детей дошкольного возраста. Для осмысления этого вопроса рассмотрены возрастные особенности детей дошкольного возраста. В процессе исследования заявленной проблемы была изучена методическая и психолого-педагогическая литература. Кратко исследованы идеи и взгляды выдающихся педагогов и психологов прошлого относительно эстетического развития детей дошкольного возраста. Сформулированы две группы социальных задач, которые характерны для эстетического воспитания; раскрыты средства эстетического воспитания в процессе обучения народным танцам и охарактеризованы методы эстетического воспитания. Охарактеризовано методы обучения народному танцу на уроках хореографии. Ключевые слова: народный танец, эстетическое воспитание, дети, дошкольный возраст, педагог

Polarization effects in the reaction e++e−→ρ++ρ−e^++e^-\to \rho^+ +\rho^- and determination of the ρ−\rho - meson form factors in the time--like region

The electron positron annihilation reaction into four pion production has been studied, through the channel $e^++e^-\to \bar \rho+\rho$. The differential (and total) cross sections and various polarization observables for this reaction have been calculated in terms of the electromagnetic form factors of the corresponding $\gamma^*\rho\rho$ current. The elements of the spin--density matrix of the $\rho -$meson were also calculated. Numerical estimations have been done, with the help of phenomenological form factors obtained in the space--like region of the momentum transfer squared and analytically extended to the time-like region.Comment: 19 pages, 2 figures, to appear in Phys Rev

DEVELOPMENT OF A MODEL FOR THE PRODUCTION OF METAL-POWDER COMPOSITIONS BASED ON CO-CR ALLOYS BY ELECTROEROSIVE DISPERSION

Abstract. The main requirement for powders for additive 3d technologies is the spherical shape of theparticles. Such particles are most compactly packed into a certain volume and ensure the "fluidity" of the powder composition in the supply systems of the material with minimal resistance. The wide use of the EED method for processing metal waste into powders for the purpose of their reuse and application in additive technologies is hampered by the lack in the scientific and technical literature of full-fledged information on the effect of the initial composition, regimes and media on the properties of powders and technologies of practical application. Therefore, in order to develop technologies for the reuse of electroerosive powders and to evaluate the effectiveness of their use, complex theoretical and experimental studies are required. The aim of the work was to develop a model for the production of metal powder compositions on the basis of Co-Cr alloys by electroerosive dispersion. Based on the results of the conducted studies, it has been established that the optimum parameters for the process of obtaining powder materials by the method of electroerosive dispersion of butyl alcohol are: capacitance of discharge capacitors 48 μF, voltage on electrodes 100 V, repetition rate of pulses 120 Hz

Suppressed absolute negative conductance and generation of high-frequency radiation in semiconductor superlattices

We show that space-charge instabilities (electric field domains) in semiconductor superlattices are the attribute of absolute negative conductance induced by small constant and large alternating electric fields. We propose the efficient method for suppression of this destructive phenomenon in order to obtain a generation at microwave and THz frequencies in devices operating at room temperature. We theoretically proved that an unbiased superlattice with a moderate doping subjected to a microwave pump field provides a strong gain at third, fifth, seventh, etc. harmonics of the pump frequency in the conditions of suppressed domains.Comment: 8 pages. Development of cond-mat/0503216 . Version 2: Final version, erratum is include

Intercomparison of five nets used for mesozooplankton sampling

Intercomparison of nets commonly used for mesozooplankton sampling in the Black and Mediterranean seas was attempted within SESAME (Southern European Seas: Assessing and Modelling Ecosystem Changes) project. Five nets were compared: three Juday nets equipped with 150 μm, 180 μm and 200 μm mesh size, Nansen net (100 μm mesh size) and WP2 (200 μm mesh size). Replicated samples were collected at one station in the western Black Sea offshore waters in April 2009. Collected samples were analyzed at species level (except for meroplankton), stages (for copepods) and size length. A decrease of total abundance values was observed with increasing mesh size, due to the significantly higher numbers of animals smaller than 1 mm in the samples obtained by fine mesh size than with coarser nets. Few comparisons were revealed significant for the abundance of animals with 1-2 mm length, while no significance was detected for specimens larger than 2 mm. The above differences resulted in discripancies between nets regarding species and stages composition. Biomass values did not differ significantly between nets, due to the strong contribution to total biomass of the large animals fraction (Calanus euxinus). The smallest and the largest animals revealed high variability between replicates collected by Nansen, Juday- 200 μm and WP2 nets. Correction factors were calculated for the conversion of abundance values between each couple of nets. The detected differences between nets regarding the abundance and biomass, the community taxonomic composition and size structure, as well as the estimated correction factors, provide useful information for the harmonization of data obtained by the above nets in the Black Sea

Subterahertz chaos generation by coupling a superlattice to a linear resonator

We investigate the effects of a linear resonator on the high-frequency dynamics of electrons in devices exhibiting negative differential conductance. We show that the resonator strongly affects both the dc and ac transport characteristics of the device, inducing quasiperiodic and high-frequency chaotic current oscillations. The theoretical findings are confirmed by experimental measurements of a GaAs=AlAs miniband semiconductor superlattice coupled to a linear microstrip resonator. Our results are applicable to other active solid state devices and provide a generic approach for developing modern chaos-based high-frequency technologies including broadband chaotic wireless communication and superfast random-number generation