Клинические особенности течения герпесвирусной инфекции, вызванной вирусом varicella zoster, в детском возрасте

Contains literature and own observation data referred to the course, peculiarities of clinical aspects, complications and modern therapy of herpes viral diseases, caused by Varicella-Zoster virus at children.Приведены данные литературы и собственных наблюдений о течении, особенностях клинических проявлений, осложнениях и современной терапии герпесвирусных заболеваний, вызванных вирусом varicella zoster, у детей

Migration processes in the context of political collisions: Factors and social and economic consequences

Europe is undergoing the strongest migration crisis that in terms of its importance can be compared with the migration crisis caused by the Second World War. This article researches the coherence of “catastrophic” hypothesis related to the current migration crisis in Europe, and considers the risks and consequences of this crisis for the social and economic development of the European region. The materials stated in the article enable the authors to make the following conclusions: Migration as an objective phenomenon that comes with globalization phenomena will always maintain its historical focus from the lagging regions of the world in terms of economic and social development to more developed and democratically free regions, The current migration crisis in Europe has been caused by an abrupt increase in the migrants’ inflow to the region (2-5 times during 2015 as compared to 2014), as well as by the lack of coordination in the actions of representatives of the executive power of European countries, including the lack of distinct and efficient measures aiming at regulating the abruptly increased migration inflow, The “catastrophic” scenarios of the current migration crisis based on historical parallels (for example, the fall of the Western Roman Imperia and the Holy Roman Empire of the German nation) offered in some scientific and publicist articles have insufficiently objective grounds, Countries of Europe (and including the European Union) must take into account and forecast probable risks that will come with the current migration crisis (social and political instability that will cause destructive phenomena in economy), and The European region may extract potential profits from the migration crisis, successively pursuing the policy of securitization, integration and assimilation of migrants and herewith finding the balance between the efficient tolerance to newcomers and the required level of safety for the indigenous population. © 2017, ASERS Publishing House. All rights reserved

Migration processes in the context of political collisions: Factors and social and economic consequences

Europe is undergoing the strongest migration crisis that in terms of its importance can be compared with the migration crisis caused by the Second World War. This article researches the coherence of “catastrophic” hypothesis related to the current migration crisis in Europe, and considers the risks and consequences of this crisis for the social and economic development of the European region. The materials stated in the article enable the authors to make the following conclusions: Migration as an objective phenomenon that comes with globalization phenomena will always maintain its historical focus from the lagging regions of the world in terms of economic and social development to more developed and democratically free regions, The current migration crisis in Europe has been caused by an abrupt increase in the migrants’ inflow to the region (2-5 times during 2015 as compared to 2014), as well as by the lack of coordination in the actions of representatives of the executive power of European countries, including the lack of distinct and efficient measures aiming at regulating the abruptly increased migration inflow, The “catastrophic” scenarios of the current migration crisis based on historical parallels (for example, the fall of the Western Roman Imperia and the Holy Roman Empire of the German nation) offered in some scientific and publicist articles have insufficiently objective grounds, Countries of Europe (and including the European Union) must take into account and forecast probable risks that will come with the current migration crisis (social and political instability that will cause destructive phenomena in economy), and The European region may extract potential profits from the migration crisis, successively pursuing the policy of securitization, integration and assimilation of migrants and herewith finding the balance between the efficient tolerance to newcomers and the required level of safety for the indigenous population. © 2017, ASERS Publishing House. All rights reserved

The role of investments for the economy of the Russian Federation

© 2020, Universidad del Zulia. All rights reserved. The article analyzes the concept of investments, their forms, types, as well as the impact on the economic climate in the country via comparative quantitative research methods. As a result, the characteristic of the structure of the main investing countries in the economy of Russia, the recipient countries of direct investments from the Russian Federation is given and a high percentage of the process of investing in a country is the returning capital of organizations from abroad. In conclusion, investments are the lever of progressive formation and positive actions for economic processes in the country

Пленочные материалы на основе полиэтилена с наночастицами кремния и карбида кремния

Polyethylene films containing 0.1-1.5% of mass of n-SiС and n-Si nanoparticles have been produced by the extrusion method. Using the spectral analysis method, it was found that the obtained films absorb UV radiation in the range 200-400 nm, which is harmful to organic substance. The average particle sizes and the quality of their dispersion in the films were determined by X-ray diffraction analysis. Using differential scanning calorimetry and physical and mechanical tests, it was found that nanoparticles did not affect the formation of the internal structure of the matrix polyethylene. The degree of crystallinity, the melting point and crystallization remain unchanged. The properties of the film surface, studied by the tribological, triboelectric methods and the determination of the wetting angle, remain constant and do not differ from the properties of PE films with nanoparticle content 0.1-1%. At 1.5% n-SiC content, a change in the surface microrelief is diagnosed, leading to a slight increase in the friction coefficient of the films. The polyethylene films filled with n-SiС and n-Si obtained in this work are recommended for use as UV protective coatings for various purposes.В настоящей научно-исследовательской работе экструзионным способом были получены полиэтиленовые пленки, содержащие 0,1-1,5% (мас.) наночастицы n-SiС и n-Si, полученные плазмохимическим методом. С помощью спектрального метода анализа установлено, что полученные пленки поглощают УФ-излучение в диапазоне 200-400 нм, губительное для органической материи. Методом рентгеноструктурного анализа были определены средние размеры частиц и качество их диспергирования в пленках. Методами дифференциальной сканирующей калориметрии и физико-механических испытаний установлено, что наночастицы не влияют на формирование внутренней структуры полиэтилена (ПЭ) матрицы. Степень кристалличности, температуры плавления и кристаллизации остаются неизменными. Свойства поверхности пленок, исследуемые трибологическими, трибоэлектрическими методами и определением краевого угла смачивания, остаются постоянными и не отличаются от свойств ПЭ-пленок при содержании наночастиц от 0,1 до 1%. При 1,5% содержании n-SiС диагностируется изменение микрорельефа поверхности, приводящее к небольшому росту коэффициента трения пленок. Полученные в работе наполненные n-SiС и n-Si полиэтиленовые пленки рекомендуются для использования в качестве УФ защитных покрытий различного назначения

The role of investments for the economy of the Russian Federation [El papel de las inversiones para la economía de la federación de rusia]

The article analyzes the concept of investments, their forms, types, as well as the impact on the economic climate in the country via comparative quantitative research methods. As a result, the characteristic of the structure of the main investing countries in the economy of Russia, the recipient countries of direct investments from the Russian Federation is given and a high percentage of the process of investing in a country is the returning capital of organizations from abroad. In conclusion, investments are the lever of progressive formation and positive actions for economic processes in the country. © 2020, Universidad del Zulia. All rights reserved

Film Materials Based on Polyethylene with Silicon Nanoparticles and Silicon Carbide

Abstract: In this research and development, the extrusion method was used to obtain polyethylene films containing 0.1–1.5 wt % n-SiC and n-Si nanoparticles obtained by the plasma chemical method. Using the spectral analysis method, it was found that the films obtained absorb UV radiation in the range of 200–400 nm, which is harmful to organic matter. The method of X-ray structural analysis was used to determine the average size of particles and the quality of their dispersion in the films. Differential scanning calorimetry and physicomechanical tests have shown that nanoparticles do not affect the formation of the internal structure of the polyethylene (PE) matrix. The degree of crystallinity, melting point, and crystallization point remain unchanged. The properties of the surface of the films, studied by tribological and triboelectric methods and determination of the contact angle, remain constant and do not differ from the properties of PE films with a nanoparticle content from 0.1 to 1%. At 1.5% nSiC content, a change in the surface microrelief is diagnosed, leading to a small increase in the film friction coefficient. The polyethylene films filled with n-SiC and n-Si obtained in this work are recommended for use as UV protective coatings for various purposes. © 2021, Pleiades Publishing, Ltd

Phylloplane Biodiversity and Activity in the City at Different Distances from the Traffic Pollution Source

The phylloplane is an integrated part of green infrastructure which interacts with plant health. Taxonomic characterization of the phylloplane with the aim to link it to ecosystem functioning under anthropogenic pressure is not sufficient because only active microorganisms drive biochemical processes. Activity of the phylloplane remains largely overlooked. We aimed to study the interactions among the biological characteristics of the phylloplane: taxonomic diversity, functional diversity and activity, and the pollution grade. Leaves of Betula pendula were sampled in Moscow at increasing distances from the road. For determination of phylloplane activity and functional diversity, a MicroResp tool was utilized. Taxonomic diversity of the phylloplane was assessed with a combination of microorganism cultivation and molecular techniques. Increase of anthropogenic load resulted in higher microbial respiration and lower DNA amount, which could be viewed as relative inefficiency of phylloplane functioning in comparison to less contaminated areas. Taxonomic diversity declined with road vicinity, similar to the functional diversity pattern. The content of Zn in leaf dust better explained the variation in phylloplane activity and the amount of DNA. Functional diversity was linked to variation in nutrient content. The fraction of pathogenic fungi of the phylloplane was not correlated with any of the studied elements, while it was significantly high at the roadsides. The bacterial classes Gammaproteobacteria and Cytophagia, as well as the Dothideomycetes class of fungi, are exposed to the maximal effect of distance from the highway. This study demonstrated the sensitivity of the phylloplane to road vicinity, which combines the effects of contaminants (mainly Zn according to this study) and potential stressful air microclimatic conditions (e.g., low relative air humidity, high temperature, and UV level). Microbial activity and taxonomic diversity of the phylloplane could be considered as an additional tool for bioindication. © 2022 by the author. Licensee MDPI, Basel, Switzerland