Management of educational services’ quality at higher education institutions

Quality management of educational services is a meaningful effect on the educational process, with a view to achieving the optimum combination of all its characteristics. The authors studied factors influencing the quality of education in the University, and the criteria of the quality assurance system of education to facilitate its evaluationУправление качеством образовательных услуг необходимо для целенаправленного воздействия на образовательный процесс с целью достижения оптимального сочетания всех его характеристик. Авторами изучены факторы, оказывающие влияние на управление качеством образования в вузе, и критерии системы обеспечения качества образования, позволяющие произвести его оценк

Electronic structure of β-RbSm(MoO4)(2) and chemical bonding in molybdates

Microcrystals of orthorhombic rubidium samarium molybdate, β-RbSm(MoO4)2, have been fabricated by solid state synthesis at T = 450 °C, 70 h, and at T = 600 °C, 150 h. The crystal structure has been refined by the Rietveld method in space group Pbcn with cell parameters a = 5.0984(2), b = 18.9742(6) and c = 8.0449(3) Å (RB = 1.72%). Thermal properties of β-RbSm(MoO4)2 were traced by DSC over the temperature range of T = 20–965 °C, and the earlier reported β ↔ α phase transition at T ∼ 860–910 °C was not verified. The electronic structure of β-RbSm(MoO4)2 was studied by employing theoretical calculations and X-ray photoelectron spectroscopy. It has been established that the O 2p-like states contribute mainly to the upper part of the valence band and occupy the valence band maximum, whereas the Mo 4d-like states contribute mainly to the lower part of the valence band. Chemical bonding effects have been analysed from the element core level binding energy data. In addition, it was found that the luminescence spectrum of β-RbSm(MoO4)2 is rather peculiar among the Sm3+ containing materials. The optical refractive index dispersion in β-RbSm(MoO4)2 was also predicted by the first-principles calculations

Phase diagrams for the M2MoO4–Ln2(MoO4)3–Hf(MoO4)2 systems, where M = Li–Cs, Tl and Ln = La–Lu

In this paper, the results of systematic studies of complex molybdate systems M2MoO4–Ln2(MoO4)3–Hf(MoO4)2 (M = Li–Cs, Tl; Ln = La–Lu) are presented. Subsolidus phase diagrams of ternary systems were constructed and new triple molybdates were obtained. The optimum synthesis conditions for poly- and monocrystalline form were determined. According to single-crystal data, the structure of one of the representatives of triple molybdates was determined.In this paper, the results of systematic studies of complex molybdate systems M2MoO4–Ln2(MoO4)3–Hf(MoO4)2 (M = Li–Cs, Tl; Ln = La–Lu) are presented. Subsolidus phase diagrams of ternary systems were constructed and new triple molybdates were obtained. The optimum synthesis conditions for poly- and monocrystalline form were determined. According to single-crystal data, the structure of one of the representatives of triple molybdates was determined

The crystal growth and properties of novel magnetic double molybdate RbFe5_{5}(MoO4_{4})7_{7} with mixed Fe3+^{3+}/Fe2+^{2+}states and 1D negative thermal expansion

Single crystals of new compound RbFe$_5$(MoO$_4$)$_7$ were successfully grown by the flux method, and their crystal structure was determined using the X-ray single-crystal diffraction technique. The XRD analysis showed that the compound crystallizes in the monoclinic space group P21/m, with unit cell parameters a = 6.8987(4), b = 21.2912(12) and c = 8.6833(5) Å, β = 102.1896(18)°, V = 1246.66(12) Å$^3$, Z (molecule number in the unit cell) = 2, R-factor (reliability factor) = 0.0166, and T = 293(2) K. Raman spectra were collected on the single crystal to show the local symmetry of MoO$_4$ tetrahedra, after the confirmation of crystal composition using energy dispersive X-ray spectroscopy (EDS). The polycrystalline samples were synthesized by a solid-state reaction in the Ar atmosphere; the particle size and thermal stability were investigated by scanning electron microscopy (SEM) and differential scanning calorimetry (DSC) analyses. The compound decomposes above 1073 K in an Ar atmosphere with the formation of Fe(III) molybdate. The thermal expansion coefficient along the c direction has the value α = −1.3 ppm K$^{−1}$ over the temperature range of 298–473 K. Magnetic measurements revealed two maxima in the magnetization below 20 K, and paramagnetic behavior above 50 K with the calculated paramagnetic moment of 12.7 μB per formula unit is in good agreement with the presence of $_3$Fe$^{3+}$ and $_2$Fe$^{3+}$ in the high-spin (HS) state. The electronic structure of RbFe5(MoO4)7 is comparatively evaluated using X-ray photoelectron spectroscopy (XPS) and density functional theory (DFT) calculations

Проверка значимости случайного эффекта для деградационной гамма-модели

Gamma degradation models with fixed or random effects are widely used for reliability analysis. In this paper, the problem of testing significance of random effects for the gamma degradation model is considered. We propose two statistical tests which enable to reveal the existence of random effects in degradation data corresponding to the gamma degradation model. The first test is the well known likelihood ratio test and the second one is based on the variance estimate of the random parameter of the “random-effect” gamma degradation model. These tests have been compared in terms of power with Monte-Carlo simulation method. Moreover, the example of GaAs lasers degradation analysis has been considered

Оптимальное планирование эксперимента на основе винеровской деградационной модели с ковариатами

The Wiener degradation models with covariates are widely used for reliability analysis. In this paper, an algorithm for constructing an optimal design, which includes determining optimal stress levels, number of tested devices and time moments for measuring the degradation index, has been developed. The proposed algorithm is based on the optimization of some functional of the Fisher information matrix under restrictions on stress levels, experiment duration and minimum time interval between measurements of the degradation index. Moreover, the example of LED degradation analysis has been considered

INTER-ETHNIC HARMONY AS A PROMISING DIRECTION FOR STRATEGIC PLANNING OF NATIONAL SECURITY POLICY IN THE RUSSIAN FEDERATION AT THE REGIONAL LEVEL (ON EXAMPLE OF REPUBLIC OF BURYATIA)

The rapidly globalizing socio-political, state-legal and fi nancial-economic development of national societies and states creates threats to ensure their national security. The crisis in international relations, which has deepened in recent decades, has given rise to new forms and methods of the infl uence of the international community and the countries of the core of the world capitalist system on states that are opposed to the planned expansion of the dominant Western interpretations of the social structure. One of the effectively used areas of infl uence on the state in order to undermine its national security are inter-ethnic, inter-religious and interracial relations. The results of such an impact on states with the goal of undermining its national security are: the growth and escalation of interethnic, interfaith and interracial confl icts; the emergence of centrifugal trends in public administration; cultivation in society of fascist, Nazi, xenophobic, extremist ideological teachings; the implementation of large-scale internal migration of the population, undermining the stability of its economic development. Ensuring effective strategic planning of the national security policy in the Russian Federation requires the development and implementation of its new promising areas. As one of the promising areas of strategic planning of the national security policy in the Russian Federation at the regional level (using the example of the Republic of Buryatia), inter-ethnic harmony is provided. Under the interethnic consent in this study, using the positive experience of its provision in the Republic of Buryatia, the authors propose to designate the kind of interethnic tolerance inherent in some zones of long-term and good-neighborly interethnic contacts, characterized by the absolute predominance of non-confl ict, complementary interactions between ethnic groups and their representatives over other forms of such interaction, as well as the general positive context of interethnic interaction. Its provision will require the implementation of a system of comprehensive measures at the federal and regional level, the purpose of which will be to create favorable conditions for the development of the country as a whole, as well as of the individual peoples inhabiting it, in the atmosphere of good-neighborly relations, positive interethnic, intercultural and inter-religious dialogue