23 research outputs found
Influence of Wet Heat Treatment on the Performance Properties of Fabrics of Different Fibrous Composition
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
© 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
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 {\boldmath} 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
© 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
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
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
© 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
© 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
© 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
© 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