1,041 research outputs found

    Horizon Formation in High-Energy Particles Collision

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    We investigate a classical formation of a trapped surface in 4-dimensional flat space-time in a process of a non-head-on collision of two high-energy particles which are treated as Aichelburg-Sexl shock waves. From the condition of the horizon volume local maximality an equation for the trapped surface is deduced. Using a known solution on the shocks we find a time-dependent solution describing the trapped surface between the shocks. We analyze the horizon appearance and evolution. Obtained results may describe qualitatively the horizon formation in higher dimensional space-time.Comment: Latex2e, 8 pages, 6 figures, references adde

    The Visegrad Group: is common policy towards Russia possible and necessary?

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    The article is devoted to the Visegrad Group that includes such “new” EU member - states, as Poland, Hungary, the Czech and Slovak Republics. The authors try to reveal a possibility of their consolidated policy towards Russia within the European Union. They come to a conclusion that, despite differences of interests, the common approach is possible in regard to Eastern dimension of ENP and especially on energy security matters, though it will not have a clearly binding characterye

    Compound Feed Technology in Sturgeon Fish Aquiculture

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    The modern fish processing industry of the Russian Federation sets the task of increasing the efficiency of the use and development of the resource potential of the fishery complex by means of aquaculture and mariculture development, including sturgeon fish breeding. In this case, complex processing through the rational use of by-products of fish and hydrobiont. In Russia, China, the EU and other countries, most fish processing enterprises do not rationally use by-products of fish cutting, which leads to violation of environmental safety (waste deposits are littered with waste from the fishing industry). The article discusses the prospects of using alternative plant materials in the diet of sturgeon fish, presents the recipes for full extruded compound feed for this group of organisms, the quality indicators of compound feed for sturgeon. A comprehensive assessment of the quality of compound feed products was obtained according to the physicochemical and structural indicators of compound feed. The optimal terms and conditions of storage of the obtained feed were found. Based on the performed tests, it was concluded that it is advisable to use raw materials of plant origin in the composition of compound feed, which contributes to the growth of the live weight of fish, leads to the replacement of the costly components of the compound feed with cheaper raw materials of plant origin, provided that the nutritional value is not reduced, and the period and conditions of storage meet the existing requirements

    DISTANT LEARNING TECHNOLOGY FOR MARITIME ENGLISH: PROS AND CONS

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    В статье рассмотрены понятия дистанционных образовательных технологий (ДОТ), электронного обучения (ЭО) и дистанционного образования (ДО), представленные в нормативных документах Российской Федерации. Проанализированы характерные особенности применения ДОТ в процессе реализации программ высшего образования. Выявлены и обоснованы преимущества и сложности использования ДОТ в процессе освоения языковых дисциплин, морского английского в частностиThe article is devoted to the concepts of distant learning technology (DOT), e-learning (EO) and online education (DO), found in the national regulations of the Russian Federation. The characteristics of the DOT implementation into the higher education programs are learnt. The article discovers the advantages and difficulties of using DOT in the mastering language, in particular, maritime Englis

    Features of Muscle Tissue Microstructure of Cattle in Industrial Agglomerations under the Environmental Pressure Conditions

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    The intensive development of the industrial sector, intensification of the agro-industrial complex, associated with the use of various fertilizers, active use of modern household chemicals lead to the constant increase in xenobiotics in the environment in both rural and urban agglomerations. There are settlements and farms within the industrial areas, therefore, the issue of accumulation of ecotoxicants in the organs and tissues of an animal, as well as the impact on the state of its health, is of particular importance. In the regions with tough environmental situation associated with anthropogenic contamination, xenobiotics of anthropogenic origin can directly or indirectly modify the activity of various body systems. The integral characteristic that reflects adaptive modifications of biota is the morphological and functional status of organs and tissues of an animal, including the state of muscle tissue. An analysis of the regenerative plastic potential of muscle tissue allows finding innovative approaches to assessing the effects of environmental impacts on animals. Up to the present day, the morphological and functional characteristics of muscle tissue in young animals and adult cattle have not been sufficiently studied in the conditions of the tough environmental situation of the Central Federal District of the Russian Federation. The issue of ecological pathologies of organs in productive animals is quite urgent for the territory of the Central Federal District with its developed agro-industrial complex and industry. The study of animals from the agglomeration of the large chemical plant showed that cattle react differently to pollutants. The animals demonstrated changes not only in hematological and biochemical parameters, but also in the morphological and functional status of muscle tissue

    Scattered Light Measurement for the Birefringence Distribution Estimations

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    The technique based on the digital processing of recorded scattered light distribution enabling for the measurement of the birefringence profile in non-uniform anisotropic materials was proposed. Keywords: measurement technique, birefringence distribution, scattered light, tempered glas

    Digital breakthrough: will public administration be smart enough in a digital state and how smart are the elite and citizens

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    The digital society is considered as a superintelligent society of a hybrid type, corresponding to the sixth technological order, in which the transgression of virtual relations into the real socio-cultural world is carried out, the hybrid collective mind is accumulated and intelligently used. The article raises the question – is it possible for subject-subject smart public administration in Russia, whether the subjects of management are smart and qualified enough in the context of digitalization, whether they will be able to effectively use smart technologies and smart services. To do this, the author discusses, first, the problem of what is a smart subject of management and how to measure the degree of smartness. In the discourse of digital society, the measurement of the degree of smartness of the subject of management is based on: the ability of an individual to perform managerial functions and on the possession of digital competencies. Secondly, the issue of assessing the current situation in Russia is investigated, i.e. to what extent digitalization creates conditions for the functioning of smart governance in Russia. The model of a centralized ecosystem of an IT-state of a service nature in Russia is implemented on a single architecture with the inclusion of components of state remote control of the objects of supervision, as well as on the principles of “human independence” and interdepartmental interaction. The model includes a set of public services of a consumer nature with multichannel access and the use of “intelligent agents”. Thirdly, to what extent the subjects of government, acting on behalf of the state, use the provided opportunities. It is concluded that modern official documents regulating the processes of building a digital state do not consider digitalization as a mechanism that ensures the humanization and democratization of relations between government and society. Fourthly, discussing the presence of subjects of government acting on behalf of citizens, the author emphasized that the state has provided for the availability of a barrier-free information environment that provides high-quality public, medical and social services, but the issue of citizens as subjects of governance in digitalization processes is not provided. They act as clients and a source of information. The signs of the subject of management among citizens in modern management practice are revealed in terms of the possibilities of expressing their position, recognizing the need for joint actions in collecting critical information and exercising control over the implementation of decisions, the presence of some partnership in the interaction of authorities with the public. It is shown that these processes are at the beginning of their development today, the underdevelopment of services for public participation in managerial decision-making processes is emphasized, while the results of the digitalization are disputable and contradictory both at the theoretical and practical levels

    The Basis and Possibility of Students’ Participation in Supply Chain Entrepreneurship (Case Study: Primorsky Territory)

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    Abstract- The current stage of development of the Russian economy, indicated by the increase in food sanctions, unemployment and the decline in growth rates, requires the introduction of import substitution mechanisms and a significant strengthening of the national entrepreneurship environment. Youth entrepreneurship plays a special role in the development of Russian small and medium-sized businesses. At the strategic and legislative levels, various programs are developed to support small business in this area. However, there are still some barriers, limiting the spread of small and medium-sized business among young people. In this regard, the problem of agitation of entrepreneurship among young people is important. This article presents the results of selective study, in which the supply chain entrepreneurial climate among the students of higher educational institutions of Primorsky Territory, using the method of sociological survey. The readiness of young people to start their own business was analysed, and unfavourable factors, complicating the development of this process, were identified. The authors defined key competences, determining the entrepreneur. The conclusion was made about the need for development, and necessary measures of state support for youth supply chain entrepreneurship. Keywords- supply chain entrepreneurship, Primorsky Territory, business incubator, small business, young people, Russia

    Three-dimensional distribution of the magnetic field and the flux in locally magnetized two-layer ferromagnetic objects

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    Numerical simulation of the spatial distribution of the magnetic field and the flux in two-layer objects is executed. The possibility of measuring the depth of a highly coercive layer on a soft magnetic core by the magnetic field measured on the surface of the object in the interpolar space of a U-shaped electromagnet is theoretically and experimentally shown. © 2016 Author(s)

    Influence of experimental metabolic syndrome on bioimpedance spectroscopy indicators of rat body

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    The objective of this experiment was to establish sex-related differences in the parameters of bioimpedance spectroscopy of the Wistar rat’s bodies in the experimental metabolic syndrome (endocrine-salt model). Sexual dependencies of bioimpedance measurements in intact animals have been determined for the first time: males have higher amount of total fluid, but lower one of total fat. The intra/extracellular fluid balance in males is characterized with ratio  2:1, while in females is the other one - 1:1. For the first time the formation of the metabolic syndrome has already been determined on the seventh day in females which lead to decreasing in the percentage of total fat and to changing  of the intra / extracellular fluid balance to ‘male’ type -  2:1. The last one should be considered as a sign of intracellular hyperhydration. In males the examined parameters have been being within the control values ​​throughout 21 days of experiment
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