1,208 research outputs found

    The role of Belgorod’ mass-media in forming of public agenda

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    The article reveals the modalities of mass-media’s influence on public consciousness. The correlation of political, public and media agendas has also been investigated. For the first time the investigation has been made with consideration for a region, by the example of the Belgorod Regio

    Readiness of future teachers for sociocultural education of children in modern conditions of society development

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    The modern sociocultural situation of the development of society involves taking into account all aspects of human life in the educational process. Are our students - future preschool teachers - ready to build their activities taking into account socio-cultural aspects. The authors consider the characteristic of readiness, highlighting motivational and value-based component (awareness of the importance of their process, readiness for continuous improvement and professional development, highlighting the values of professional activity), activity-technological component (knowledge of the ways of interaction with the subjects of the pedagogical process, design of the educational and educational process, the use of modern teaching tools (IT), information and knowledge component (knowledge of the specifics of preschool childhood, modern trends in the development of society and education, learning technologies). The study shows the insufficient level of development of the 2nd and the 3rd components of the readiness of future teachers. The proposed methods of professional training of future teachers of preschool education are associated with the use of business games, conducting master classes, studying the technological component of the educational process

    Public management of smart cities: European experience

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    The article presents a rethinking of the results of research in the field of smart city management based on publications in Spain and the Netherlands. Three areas of research have been identified. The first one offers scientific studies of smart city management and recommendations for improving the effectiveness of smart management based on a clear understanding of the degree of legitimacy of decision-making. The author considers these processes in comparison with the Russian scientists approaches, and focuses on the important conclusion of foreign scientists that technology alone will not make the city smarter: the construction of a smart city requires a political understanding of technology, a process approach to management, an emerging smart city, and a focus on both economic benefits and other public values. The second group of articles, considered by the author, presents a more comprehensive view of the concepts of smart cities, with smart governance, combining, presumably, innovative structures and new technologies, new communication channels aimed at the constant functioning of the city management system and the environment for cooperation and citizen engagement. The third group of publications deals with critical aspects of the development of smart governance in practice and the resulting consequences, in particular, the reassessment of the ability of the private sector to develop and implement intelligent technologies, the predominance of a technocratic approach to decision-making, the inability to ensure impartiality and objectivity, the lack of the ability to analyse urban data, cloud computing on digital platforms to stimulate production in a collaborative environment. Their conclusion about the need for “smart management” to pay attention to the processes of socio-spatial development is quite correlated with the conclusions of Russian scientists

    Modification of fluid lipid and mobile protein fractions of reticulocyte plasma membranes affects agonist-stimulated adenylate cyclase. Application of the percolation theory

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    AbstractThe technique of fluorescence recovery after photobleaching was used to measure the lateral mobility of membrane integral proteins in reticulocyte plasma membranes which were treated to modify the ‘fluid’ lipid or immobilized protein fractions, hence increasing the relative prevalence of obstacles to protein lateral motion. This was achieved by either: (1) treating the plasma membranes with phospholipase A2 followed by extraction of the hydrolysis products using fatty-acid-free bovine serum albumin, resulting in a decrease in the membrane ‘fluid’ lipid portion; or (2) preincubating the plasma membranes with polylysines, resulting in plasma membrane protein aggregation and immobilization. As the prevalence of obstacles to lateral motion increased in plasma membranes through the treatments described above, the mobility of the membrane integral proteins diminished. Experimental results for the dependence of protein mobility on the prevalence of obstacles to lateral motion were compared to theoretical data in order to verify the applicability of the percolation theory to reticulocyte plasma membranes. The influence of a decrease in the ‘fluid’ lipid and an increase in the immobilized membrane protein fractions upon the hormone-stimulated adenylate cyclase activity has been studied as well. As the ‘solid’ lipid and immobilized membrane protein fractions decreased, both the hormone-stimulated adenylate cyclase activity and the fraction of β-adrenergic receptors with high affinity to hormone diminished. It was shown that this correlation can be caused by a decrease in membrane fraction accessible to the movement of the interacting proteins of the adenylate cyclase complex. Hormonal stimulation of adenylate cyclase is discussed in terms of the percolation theory

    Unconventional magnetism of non-uniform distribution of Co in TiO2 nanoparticles

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    High-resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD) analysis, electron paramagnetic resonance (EPR), X-ray absorption spectroscopy (XAS), magnetic methods, and density-functional theory (DFT) calculations were applied for the investigations of Co-doped anatase TiO2 nanoparticles (∼20 nm). It was found that high-spin Co2+ ions prefer to occupy the interstitial positions in the TiO2 lattice which are the most energetically favourable in compare to the substitutional those. A quantum mechanical model which operates mainly on two types of Co2+ – Co2+ dimers with different negative exchange interactions and the non-interacting paramagnetic Co2+ ions provides a satisfactorily description of magnetic properties for the TiO2:Co system. © 2020 Elsevier B.V.Russian Foundation for Basic Research. Ministry of Science and Higher Education of the Russian Federatio

    Capability assessment for application of clay mixture as barrier material for irradiated zirconium alloy structure elements long-term processing for storage during decommissioning of uranium-graphite nuclear reactors

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    The radionuclide composition and the activity level of the irradiated zirconium alloy E110, the radionuclide immobilization strength and the retention properties of the mixed clay barrier material with respect to the radionuclides identified in the alloy were investigated to perform the safety assessment of handling structural units of zirconium alloy used for the technological channels in uranium-graphite reactors. The irradiated zirconium alloy waste contained the following activation products:{93m}Nb and the long-lived {94}Nb, {93}Zr radionuclides. Radionuclides of {60}Co, {137}Cs, {90}Sr, and actinides were also present in the alloy. In the course of the runs no leaching of niobium and zirconium isotopes from the E110 alloy was detected. Leach rates were observed merely for {60}Co and {137}Cs present in the deposits formed on the internal surface of technological channels. The radionuclides present were effectively adsorbed by the barrier material. To ensure the localization of radionuclides in case of the radionuclide migration from the irradiated zirconium alloy into the barrier material, the sorption properties were determined of the barrier material used for creating the long-term storage point for the graphite stack from uranium-graphite reactors
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