Mathematical Models of Video-Sequences of Digital Half-Tone Images

This chapter is devoted to Mathematical Models (MM) of Digital Half-Tone Images (DHTI) and their video-sequences presented as causal multi-dimensional Markov Processes (MP) on discrete meshes. The difficulties of MM development for DHTI video-sequences of Markov type are shown. These difficulties are related to the enormous volume of computational operations required for their realization. The method of MM-DHTI construction and their statistically correlated video-sequences on the basis of the causal multi-dimensional multi-value MM is described in detail. Realization of such operations is not computationally intensive; Markov models from the second to fourth order demonstrate this. The proposed method is especially effective when DHTI is represented by low-bit (4-8 bits) binary numbers

Development of Nonlinear Filtering Algorithms of Digital Half-Tone Images

This chapter is devoted to solving the problem of algorithms and structures investigations for Radio Receiver Devices (RRD) with the aim of the nonlinear filtering of Digital Half-Tone Images (DHTI) representing the discrete-time and discrete-value random Markovian process with a number of states greater than two. At that, it is assumed that each value of the DHTI element is represented by the binary g-bit number, whose bits are transmitted via digital communication links in the presence of Additive White Gaussian Noise (AWGN). The authors present the qualitative analysis of the optimal DHTI filtering algorithm. The noise immunity of the optimal radio receiver device for the DHTI filtering with varying quantization and dimension levels is investigated

Role of direct exchange and Dzyaloshinskii-Moriya interactions in magnetic properties of graphene derivatives: C2_2F and C2_2H

According to the Lieb's theorem the ferromagnetic interaction in graphene-based materials with bipartite lattice is a result of disbalance between the number of sites available for $p_z$ electrons in different sublattices. Here, we report on another mechanism of the ferromagnetism in functionalized graphene that is the direct exchange interaction between spin orbitals. By the example of the single-side semihydrogenated (C$_2$H) and semifluorinated (C$_2$F) graphene we show that such a coupling can partially or even fully compensate antiferromagnetic character of indirect exchange interactions reported earlier [Phys. Rev. B {\bf 88}, 081405(R) (2013)]. As a result, C$_2$H is found to be a two-dimensional material with the isotropic ferromagnetic interaction and negligibly small magnetic anisotropy, which prevents the formation of the long-range magnetic order at finite temperature in accordance with the Mermin-Wagner theorem. This gives a rare example of a system where direct exchange interactions play a crucial role in determining a magnetic structure. In turn, C$_2$F is found to be at the threshold of the antiferromagnetic-ferromagnetic instability, which in combination with the Dzyaloshinskii-Moriya interaction can lead to a skyrmion state.Comment: 10 page

Model of Economic Phenomenon

As is known, economic phenomena represent the most important part of the subject of economic science. However, modern economic theory avoids a clear definition of this category. Thus, it remains unclear what is economic phenomena, and thus the economy is in its essence as suc

Interação entre as autoridades e o setor sem fins lucrativos na Federação Russa: restrições de recursos e desenvolvimento

The aim of the work is to study the conditions of Russian NPO functioning, the key problems and the trends of their development, and to develop the mechanisms that provide constructive practices for cooperation between the state and the non-profit sector. The results of statistical studies illustrate a high level of territorial differentiation among the representatives of the non-commercial sector, which creates inequality in terms of access to social services, the opportunities to meet the social needs of the population, the development of civil society, the involvement of social groups for the development and the implementation of managerial decisions in the social sphere. A low level of financial and infrastructural security of NPO activities, the lack of voluntary support lead to the reduction of trends and the volume of social assistance for the population. Currently, the interaction of local government and non-profit public organizations is characterized by rather narrow models of cooperation. The leading mechanism that can provide the necessary modernization of non-profit organization activities, the increase of their role and representation in public problem solution, is an intersectoral social partnership that can provide constructive coordination of key agent positions in the social space, an effective interaction of government bodies, population and public organizations.El objetivo del trabajo es estudiar las condiciones de funcionamiento de las OSFL rusas, los problemas clave y las tendencias de su desarrollo, y desarrollar los mecanismos que proporcionan prácticas constructivas para la cooperación entre el estado y el sector sin fines de lucro. Los resultados de los estudios estadísticos ilustran un alto nivel de diferenciación territorial entre los representantes del sector no comercial, que crea desigualdad en términos de acceso a los servicios sociales, las oportunidades para satisfacer las necesidades sociales de la población, el desarrollo de la sociedad civil, la participación de grupos sociales para el desarrollo y la implementación de decisiones gerenciales en el ámbito social. Un bajo nivel de seguridad financiera y de infraestructura de las actividades de OSFL, la falta de apoyo voluntario conducen a la reducción de las tendencias y al volumen de asistencia social para la población. Actualmente, la interacción del gobierno local y las organizaciones públicas sin fines de lucro se caracteriza por modelos de cooperación bastante estrechos. El mecanismo principal que puede proporcionar la modernización necesaria de las actividades de organizaciones sin fines de lucro, el aumento de su función y representación en la solución de problemas públicos, es una asociación social intersectorial que puede proporcionar una coordinación constructiva de puestos de agentes clave en el espacio social, una interacción efectiva de organismos gubernamentales, población y organizaciones públicas.O objetivo do trabalho é estudar as condições operacionais das organizações sem fins lucrativos russas, os principais problemas e tendências de seu desenvolvimento e desenvolver mecanismos que forneçam práticas construtivas de cooperação entre o Estado e o setor sem fins lucrativos. Os resultados dos estudos estatísticos ilustram um alto nível de diferenciação territorial entre os representantes do setor não comercial, o que gera desigualdade em termos de acesso a serviços sociais, oportunidades de atender às necessidades sociais da população, desenvolvimento da sociedade civil , a participação de grupos sociais para o desenvolvimento e implementação de decisões gerenciais no campo social. Um baixo nível de segurança financeira e infraestrutura das atividades da NPO, a falta de apoio voluntário leva à redução de tendências e ao volume de assistência social para a população. Atualmente, a interação do governo local e organizações públicas sem fins lucrativos é caracterizada por modelos de cooperação bastante estreitos. O principal mecanismo que pode proporcionar a necessária modernização das atividades das organizações sem fins lucrativos, o aumento de sua função e representação na solução de problemas públicos, é uma associação social intersetorial que pode proporcionar uma coordenação construtiva de posições de agentes o espaço social, uma interação efetiva de agências governamentais, população e organizações públicas

Ultrasound investigation in pregnant women with diabetes mellitus

Introduction. Ultrasound (US) has been used in obstetrics for more than 30 years and is considered to be reliable, simple, quick in results, painless and cheap method. The aim: to optimize the use of US in childbirth in pregnant women with diabetes and determine the outcome of childbirth, taking into account the condition of the fetus and newborn. Materials and methods. 52 pregnant women, among them 32 with diabetes mellitus (pre-gestational diabetes was in 20 persons and 12 persons had gestational diabetes) have been examined.  The average age of pregnant women in the main group was 29.8 ± 5.4 years, in the control group - 25.7 ± 4.3 years. All women in the main and control groups were primiparous. The gestation period in the main group was 39.1 ± 0.5 weeks [38.0; 39.6], in the control group - 39.5 ± 0.7 [38.4; 40.5] weeks. Clinical-laboratory and instrumental examinations were made. Control group consisted of  20 physiologically pregnant women. To determine the condition and size of the fetus and its progress in labor, immediately at the end of the first and during the second staage of labor, transabdominal and transperineal US and Doppler examination were performed with device HD 11 XE Phillips (USA). Results. Pregnant women with diabetes are more likely to have a pathological second stage of labors due to macrosomia and problems with the birth of the fetus, as evidenced by the lack of increased angle of progress and decreased head-perineal distance. The data obtained indicate the prospects of using ultrasound in childbirth as an objective non-invasive method for predicting the likelihood of vaginal birth, which will reduce operative delivery and perinatal pathology. Conclusions. The use of ultrasound in childbirth in women with diabetes and diabetic fetopathy can determine the possibility of complications in the promotion of the fetus, including clinical narrow pelvis, shoulder dystocia, the occurrence of distress, as evidenced by the Apgar scale and CLS. Intraparietal ultrasound helps to guide the plan of childbirth, reduce the frequency of cesarean delivery, perinatal morbidity and mortality, and birth trauma

Supply Chain Infrastructure Development in Russian Economy

Abstract- The article is devoted to the study of the activities of Zemstvo institutions for the development of supply chain infrastructure in the XIX-early XX centuries; identification of the role of the Zemstvo reform in the formation of supply chain infrastructure at the local level. Supply Chain infrastructure provides the means for chain economic entities and firms sharing a common interest to participate in a mutual exchange. Despite the fact that the provision of supply chain services was not among the priorities of the Zemstvos, significant results were achieved. The retrospective analysis allowed us to highlight the advantages and disadvantages of the Zemstvo self-government system. The comparative method helped to identify trends in the financial and economic support of Zemstvo bodies at various stages of the Zemstvo reform, and to analyze key indicators of supply chain infrastructure development. It is concluded that the success of the Zemstvo self-government bodies in the development of supply chain infrastructure was due to the availability of significant organizational resources, ensuring sustainable interaction of Zemstvos with the population, active support for local initiatives and the formation of a system of public control. The authors note that the experience of implementing the principle of consolidation of the main directions of management activities for the development of supply chain infrastructure, formed by local authorities, can be in demand in modern conditions and adapted to the current system of local government in Russia for economy efficiency

Role of Coulomb correlation on magnetic and transport properties of doped manganites: La0.5Sr0.5MnO3 and LaSr2Mn2O7

Results of LSDA and LSDA+U calculations of the electronic structure and magnetic configurations of the 50% hole-doped pseudocubic perovskite La0.5Sr0.5MnO3 and double layered LaSr2Mn2O7 are presented. We demonstrate that the on-site Coulomb correlation (U) of Mn d electrons has a very different influence on the (i) band formations, (ii) magnetic ground states, (iii) interlayer exchange interactions, and (iv) anisotropy of the electrical transport in these two manganites. A possible reason why the LSDA failures in predicting observed magnetic and transport properties of the double layered compound - in contrast to the doped perovskite manganite - is considered on the basis of a p-d hybridization analysis.Comment: 11 pages, 3 figure

Design of professional career by future experts in the sphere of art and culture

The problem of planning of professional life is discussed by experts in the field of art and culture, experience of application of active forms of education with use of presentation during psychology and pedagogical lessons is described in the article, aspects of efficiency of their realization in training of students of higher education institution are considered, possibilities of application of modern means of presentation in the course of professional formation of future specialist producer are revealed. Problems of design of a professional way of a personality in the context of modern social and economic conditions are complicated by unstable conditions, characterized by social, economic and political changes, prompt transformations in the sphere of values and purposes of personality that predetermines essentially new requirements to psychological structure of the personality which would provide the most effective self-realization and success in professional activity. That means that actual tendencies of process of vocational training of future experts in the sphere of art are ways of application of means of modern technologies in the course of training. We believe that use of active forms of education with use of presentation, and also analysis of perceived phenomena by students will form readiness of future experts of the sphere of art and culture for design of own professional future.peer-reviewe

Structure peculiarities of cementite and their influence on the magnetic characteristics

The iron carbide $Fe_3C$ is studied by the first-principle density functional theory. It is shown that the crystal structure with the carbon disposition in a prismatic environment has the lowest total energy and the highest energy of magnetic anisotropy as compared to the structure with carbon in an octahedron environment. This fact explains the behavior of the coercive force upon annealing of the plastically deformed samples. The appearance of carbon atoms in the octahedron environment can be revealed by Mossbauer experiment.Comment: 10 pages, 3 figures, 3 tables. submitted to Phys.Rev.