419 research outputs found

    Increase housing provision of citizens as a priority direction of social and economic development of the region

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    Set out the results of the study provide citizens with housing as a priority direction of social and economic development of the market; showed the causes of low housing provision of citizens of the Belgorod region, made conclusions and identified measures to increase housing provision in the cities of RussiayesBelgorod State National Research Universit

    From the Economic Union to the Harmonisation of Higher Education in the BRICS Countries: The Experience of RUDN University

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    Since 2009 when Brazil, Russia, India, and China (South Africa since 2011) joined in the international organisation aimed at the economic development of the countries, and gain financial stability, the relations between the countries too boosted via political and cultural cooperation. The new economic, political and social environment has a high demand for competent specialists ready to work in various national agendas and interrelated frameworks of the BRICS. In this context, it is argued that professional training in the countries under discussion should be correlated as it provides grounds for quality assurance in education that contributes to the nations’ sustainable development, safety, and human rights provision. This situation determines the topicality of the issue. The objective of this research is to study the higher educational environment in the BRICS countries and to compare some aspects of professional training. In doing so, the study aims to present the experience of RUDN University as one of the BRICS university network members. The hypothesis states that the harmonisation of higher education systems within regional organisations can contribute to the enhancement of both international standards and individual learning paths, thus fostering youth rights for education in line with quality standards and individual preferences. To accomplish the objectives of the study, it uses the following methods - the review of the current research, formal document and online resources on higher education in the BRICS countries; the survey of the undergraduates, graduates, and postgraduates on their motivation to academic mobility, and collaboration in the frameworks of BRICS higher education. The data has been analysed employing the methods of statistical processing, qualitative and quantitative methods. The findings of the current research include the outcomes and findings on the harmonisation of higher education in the frameworks of BRICS higher education. The study will contribute to further development of BRICS countries education and the harmonisation of higher education. &nbsp

    The impact of Nd3+/La3+ substitution on the cation distribution and phase diagram in the La2SrAl2O7-Nd2SrAl2O7 system

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    Received: 28.04.2018. Accepted: 09.05.2018. Published: 10.05.2018.The effect of isovalent cation substitution of lanthanum atoms in the structure of La2SrAl2O7 oxide, and phase equilibria (solidus-liquidus curves) in the binary system La2SrAl2O7-Nd2SrAl2O7 were studied. It was found that Nd3+ substitution for La3+ has effect on the structure of La2SrAl2O7 in respect of the character of cation distribution in the solid solution La2–xNdxSrAl2O7 from statistically disordered to the ordered one where strontium cations predominantly occupied the rock-salt layers, as reflected by the solidus-liquidus lines

    Orbitally induced hierarchy of exchange interactions in zigzag antiferromagnetic state of honeycomb silver delafossite Ag3Co2SbO6

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    We report the revised crystal structure, static and dynamic magnetic properties of quasi-two dimensional honeycomb-lattice silver delafossite Ag3Co2SbO6. The magnetic susceptibility and specific heat data are consistent with the onset of antiferromagnetic long range order at low temperatures with N\'eel temperature TN ~ 21.2 K. In addition, the magnetization curves revealed a field-induced (spin-flop type) transition below TN in moderate magnetic fields. The GGA+U calculations show the importance of the orbital degrees of freedom, which maintain a hierarchy of exchange interaction in the system. The strongest antiferromagnetic exchange coupling was found in the shortest Co-Co pairs and is due to direct and superexchange interactions between the half-filled xz+yz orbitals pointing directly to each other. The other four out of six nearest neighbor exchanges within the cobalt hexagon are suppressed, since for these bonds active half-filled orbitals turned out to be parallel and do not overlap. The electron spin resonance (ESR) spectra reveal a Gaussian shape line attributed to Co2+ ion in octahedral coordination with average effective g-factor g=2.3+/-0.1 at room temperature and shows strong divergence of ESR parameters below 120 K, which imply an extended region of short-range correlations. Based on the results of magnetic and thermodynamic studies in applied fields, we propose the magnetic phase diagram for the new honeycomb-lattice delafossite

    Unification and Finite Model Property for Linear Step-Like Temporal Multi-Agent Logic with the Universal Modality

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    This paper proposes a semantic description of the linear step-like temporal multi-agent logic with the universal modality LTK.slU\mathcal{LTK}.sl_U based on the idea of non-reflexive non-transitive nature of time. We proved a finite model property and projective unification for this logic

    Consumer behavior in the context of global economic transformations

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    Transition to alternative methods of service and omnichannelity allows the buyer to be more demanding and discerning. The current trends in the development of retail trade caused by globalization forcing the redistribution of consumer budget from a high-margin offline cart to a low-margin online cart that instigate not only the necessity of transformations in management, but also the study of consumer behavior. Dynamical development of trading innovative technologies allows the buyers not only to expand the range of their aspiration, but also to become participants in the cognitive and learning processes, where the acquirement of the new experience and emotions influences the traditional ways of making purchases on offline trading. To remain competitive, retailers should not only provide high-quality goods and services at the best prices, but also to contribute to their high-quality and get-to-able supply. Most purchasing decisions are made "by feel", that contradict to the theories of rational choice and theories using marketing concepts. The article gives views on the factors and criteria that determine consumers behavior in online and offline trade.peer-reviewe

    Kinetics and Mechanism of the Kabachnik-Fields Reaction:. III. Effect of the Nature of the Carbonyl Compound on the Kinetics and Mechanism of the Kabachnik-Fields Reaction. a Unified Reaction Mechanism

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    The Kabachnik-Fields reaction in the series of substituted benzaldehydes can occur, depending on the nature of the carbonyl compound, via imine or hydroxyphosphonate formation. A unified reaction mechanism is proposed, involving both possible routes

    Molecular genetic methods for identifying raw materials in meat products: Diversity, opportunities and prospects

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    In the current economic situation, after easing the Covid pandemic restrictions, almost all laboratories, which are focused on evaluation of the conformity of food products, have faced issues in supplying for their laboratories. In this regard, in the last years many laboratories have been forced to validate new approaches and introduce new methods for assessing conformity of the food products. Very often it is not possible to use only one method to resolve the issue of the food product ingredients, especially for the purpose of traceability of their names and the used raw materials, listed on the label. Survey of the raw food materials to determine whether they correspond to the type name is a simpler task, in contrast to survey of the multicomponent food product. Many researchers have to estimate the opportunities and feasibility of application of various methodologies in their workplaces. Therefore, this review is relevant for the researchers in this field, as it focuses on aspects and special features of similar methodologies. The prospect of molecular genetic methods for identification of the raw materials used for manufacturing of meat products is presented below. This review also represents characteristics of methods for identification of the sources of raw materials used for the manufacturing of the meat products, based on the recognition of species-specific sections within the nucleic acids structures. The variety of methods (hybridization methods, polymerase chain reaction, different types of isothermal amplifications, methods using CRISPR/Cas systems), the principles of their implementation, and achieved analytical characteristics are considered. The capacities and competitive potential of various methods are discussed, as well as approaches being developed to overcome the existing limitations.In the current economic situation, after easing the Covid pandemic restrictions, almost all laboratories, which are focused on evaluation of the conformity of food products, have faced issues in supplying for their laboratories. In this regard, in the last years many laboratories have been forced to validate new approaches and introduce new methods for assessing conformity of the food products. Very often it is not possible to use only one method to resolve the issue of the food product ingredients, especially for the purpose of traceability of their names and the used raw materials, listed on the label. Survey of the raw food materials to determine whether they correspond to the type name is a simpler task, in contrast to survey of the multicomponent food product. Many researchers have to estimate the opportunities and feasibility of application of various methodologies in their workplaces. Therefore, this review is relevant for the researchers in this field, as it focuses on aspects and special features of similar methodologies. The prospect of molecular genetic methods for identification of the raw materials used for manufacturing of meat products is presented below. This review also represents characteristics of methods for identification of the sources of raw materials used for the manufacturing of the meat products, based on the recognition of species-specific sections within the nucleic acids structures. The variety of methods (hybridization methods, polymerase chain reaction, different types of isothermal amplifications, methods using CRISPR/Cas systems), the principles of their implementation, and achieved analytical characteristics are considered. The capacities and competitive potential of various methods are discussed, as well as approaches being developed to overcome the existing limitations

    Kinetics and Mechanism of the Kabachnik-Fields Reaction: II. Kabachnik-Fields Reaction in the System Dialkyl Hydrogen Phosphite-Benzaldehyde-Cyclohexylamine

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    The Kabachnik-Fields reaction in the ternary system dialkyl hydrogen phosphite-benzaldehyde-cyclohexylamine involves intermediate hydroxyphosphonate formation followed by substitution of the hydroxyl by an amino group. The reaction rate depends on the structure of the dialkyl hydrogen phosphite and on the nature of the solvent
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