23 research outputs found

    Influence of Wet Heat Treatment on the Performance Properties of Fabrics of Different Fibrous Composition

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    The article deals with the issues of changing the qualitative characteristics of dress fabrics under the influence of wet-heat returns. For the study, the fabrics in question were washed (the number of washes was 1, 5, 10). A comprehensive analysis of the results of testing dress fabrics for options before washing and after washing was carried out

    Small entrepreneurship’s impact on the development of Central Federal District regions

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    © 2016 Taylor & Francis Group, London.In this article, we examine the influence of small entrepreneurship on the main indicators of the Central Federal District regions development for the period from 2002 to 2012. As a result of regression analysis, a statistically significant association between indicators of small entrepreneurship and development of the Central Federal District is revealed

    Theoretical correlation between possible evidences of neutrino chiral oscillations and polarization measurements

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    Reporting about the formalism with the Dirac equation we describe the dynamics of chiral oscillations for a fermionic particle non-minimally coupling with an external magnetic field. For massive particles, the chirality and helicity quantum numbers represent different physical quantities of representative importance in the study of chiral interactions, in particular, in the context of neutrino physics. After solving the interacting Hamiltonian (Dirac) equation for the corresponding {\em fermionic} Dirac-{\em type} particle (neutrino) and quantifying chiral oscillations in the Dirac wave packet framework, we avail the possibility of determining realistic neutrino chirality conversion rates by means of (helicity) polarization measurements. We notice that it can become feasible for some particular magnetic field configurations with large values of {\boldmathBB} orthogonal to the direction of the propagating particle.Comment: 12 pages, 2 figure

    Competitiveness of professional education: Purposes, tasks and factors of its participation in the international educational services market

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    © 2014 Copyright for this article is retained by the author(s). The article is directed at research of professional education competitiveness problem under the conditions of the international educational integration. The essence of competitiveness of professional education is revealed in it and such components as: competitiveness of specialty and higher educational institution, competitiveness of vocational training, competitiveness of educational services, competitiveness of a student, competitiveness of a graduate and competitiveness of an expert are also revealed here. The purposes and tasks are presented in the article, the features of competitiveness of professional education are revealed, and also factors of competitive participation of the Russian professional education at the international market of educational services are defined

    Spin half fermions with mass dimension one: theory, phenomenology, and dark matter

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    We provide the first details on the unexpected theoretical discovery of a spin-one-half matter field with mass dimension one. It is based upon a complete set of dual-helicity eigenspinors of the charge conjugation operator. Due to its unusual properties with respect to charge conjugation and parity, it belongs to a non-standard Wigner class. Consequently, the theory exhibits non-locality with (CPT)^2 = - I. We briefly discuss its relevance to the cosmological `horizon problem'. Because the introduced fermionic field is endowed with mass dimension one, it can carry a quartic self-interaction. Its dominant interaction with known forms of matter is via Higgs, and with gravity. This aspect leads us to contemplate the new fermion as a prime dark matter candidate. Taking this suggestion seriously we study a supernova-like explosion of a galactic-mass dark matter cloud to set limits on the mass of the new particle and present a calculation on relic abundance to constrain the relevant cross-section. The analysis favours light mass (roughly 20 MeV) and relevant cross-section of about 2 pb. Similarities and differences with the WIMP and mirror matter proposals for dark matter are enumerated. In a critique of the theory we bare a hint on non-commutative aspects of spacetime, and energy-momentum space.Comment: 78 pages [Changes: referee-suggested improvements, additional important references, and better readability

    Particle Physics Approach to Dark Matter

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    We review the main proposals of particle physics for the composition of the cold dark matter in the universe. Strong axion contribution to cold dark matter is not favored if the Peccei-Quinn field emerges with non-zero value at the end of inflation and the inflationary scale is superheavy since, under these circumstances, it leads to unacceptably large isocurvature perturbations. The lightest neutralino is the most popular candidate constituent of cold dark matter. Its relic abundance in the constrained minimal supersymmetric standard model can be reduced to acceptable values by pole annihilation of neutralinos or neutralino-stau coannihilation. Axinos can also contribute to cold dark matter provided that the reheat temperature is adequately low. Gravitinos can constitute the cold dark matter only in limited regions of the parameter space. We present a supersymmetric grand unified model leading to violation of Yukawa unification and, thus, allowing an acceptable b-quark mass within the constrained minimal supersymmetric standard model with mu>0. The model possesses a wide range of parameters consistent with the data on the cold dark matter abundance as well as other phenomenological constraints. Also, it leads to a new version of shifted hybrid inflation.Comment: 32 pages including 6 figures, uses svmult.cls, some clarifications added, lectures given at the Third Aegean Summer School "The Invisible Universe: Dark Matter and Dark Energy", 26 September-1 October 2005, Karfas, Island of Chios, Greece (to appear in the proceedings

    Small entrepreneurship’s impact on the development of Central Federal District regions

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    © 2016 Taylor & Francis Group, London.In this article, we examine the influence of small entrepreneurship on the main indicators of the Central Federal District regions development for the period from 2002 to 2012. As a result of regression analysis, a statistically significant association between indicators of small entrepreneurship and development of the Central Federal District is revealed

    Small entrepreneurship’s impact on the development of Central Federal District regions

    No full text
    © 2016 Taylor & Francis Group, London.In this article, we examine the influence of small entrepreneurship on the main indicators of the Central Federal District regions development for the period from 2002 to 2012. As a result of regression analysis, a statistically significant association between indicators of small entrepreneurship and development of the Central Federal District is revealed

    Small entrepreneurship’s impact on the development of Central Federal District regions

    No full text
    © 2016 Taylor & Francis Group, London.In this article, we examine the influence of small entrepreneurship on the main indicators of the Central Federal District regions development for the period from 2002 to 2012. As a result of regression analysis, a statistically significant association between indicators of small entrepreneurship and development of the Central Federal District is revealed

    Competitiveness of professional education: Purposes, tasks and factors of its participation in the international educational services market

    No full text
    © 2014 Copyright for this article is retained by the author(s). The article is directed at research of professional education competitiveness problem under the conditions of the international educational integration. The essence of competitiveness of professional education is revealed in it and such components as: competitiveness of specialty and higher educational institution, competitiveness of vocational training, competitiveness of educational services, competitiveness of a student, competitiveness of a graduate and competitiveness of an expert are also revealed here. The purposes and tasks are presented in the article, the features of competitiveness of professional education are revealed, and also factors of competitive participation of the Russian professional education at the international market of educational services are defined
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