FACTORIAL, TYPICAL AND REGIONAL ASPECTS OF THE INTERNATIONAL COMPETITIVENESS OF THE NATIONAL TOURIST PRODUCT

The issue of the competitiveness of the touristic product has been considered. The structure of the most popular international index for competitiveness in the travel and tourism sphere, publishing by the World Economic Forum, has been analyzed. The main types of tourism have been highlighted, affecting the structure and dynamics of the tourist flow. The importance of the regional aspect in evaluating the international competitiveness of the national tourist product has been determined. The experience of creating a tourist cluster in Northern Caucasus has been analyzed. Also a form of stimulation to the domestic and inbound tourism has been considered as special economic zones of tourist-recreational type. It has been concluded, that the tourist clusters and special economic zones of tourist-recreational type promote increasing of the competitiveness of the regions and of the national tourist product as a whole

Functional Potential of Multilingual Text in Urban Space: a Linguistic-Semiotic Perspective

This article analyzes the functional potential of multilingual texts within urban spaces from a linguistic-semiotic perspective. The study uses a sample of 1590 multilingual texts, consisting of photographs of graffiti objects found in four cities in Southern Russia: Nalchik, the Novorossiysk agglomeration (Novorossiysk and Myskhako), Pyatigorsk, and Rostov-on-Don. The methods used include continuous sampling of multilingual texts, content analysis of their verbal elements, semiotic analysis of their graphic elements, comparative and contrastive methods, and quantitative data processing techniques. The phenomenon of graffiti is analyzed from linguistic and linguo-semiotic perspectives, with a distinction made between graffiti and street art. The authors describe the ontology of graffiti in the urban environment through a series of important dichotomies: visibility / invisibility, performance / risk / art, and sanction/unsanction. The functions of graffiti are also examined in detail, including their integrative-identifying function, self-presentation function, protest function, subversive function, and advertising / propaganda function. The study concludes that multilingual texts, represented in the form of graffiti within urban spaces, have significant functional potential

The problems of system introduction of dual education: em-ployer's position

Статья посвящена проблемам и противоречиям, связанным с внедрением дуального обучения в системе профессионального образования. Рассматриваются пути и особенности внедрения практико-ориентированного обучения с позиций работодателя.This article is devoted to the problems and contradictions, which are connected with the introduction of dual education in the system of the professional education. The author considers ways and features of introduction of the praktiko-focused training from the employer's position

Model of the influence of the speed of communication and ambient temperature on the electric power consumption of an electric bus

The development of the electric bus fleet, observed in the world and, in particular, in the Russian Federation, leads to the emergence of new scientific and practical problems that need to be addressed. So, at present, when electric buses are put into operation, in practice, problems arise with the choice of a rational urban regular route and the organization of charging infrastructure on it. To solve this problem, you need to know the power consumption of an electric bus, which depends on the operating conditions. This article analyzes scientific research in the field of modeling electricity consumption by an electric bus. Such an analysis and study of the experience of operating an electric bus in Tyumen made it possible to single out the factors on which electricity consumption depends. In the course of the study, a hypothesis was formulated: the factors characterizing the operating conditions on the route can be taken into account by one indicator «speed of communication». At the same time, until now, no direct influence of the ambient temperature on the power consumption of an electric bus has been revealed. Therefore, the aim of the study is to study the effect of traffic speed and ambient temperature on the electricity consumption of an electric bus on a regular urban route. To achieve this goal, a passive experiment was carried out, during which data was obtained on the functioning of electric buses, the technical parameters of the charging stations and the ambient temperature. To test the hypothesis, the initial amount of experimental information was processed using statistical data processing methods. It was found that a decrease in the speed of communication causes an increase in the consumption of electricity by an electric bus. During the analysis of the influence of the ambient air temperature on the considered output parameter, it was revealed that when it deviates from the value equal to + 4 °C, an increase in the consumption of electricity by the electric bus is observed. As a result, the established regularities of the influence of the speed of communication and the ambient air temperature on the electricity consumption of an electric bus and their mathematical models will become the basis for further research for the development of a methodology for rationing electricity consumption by an electric bus on a regular city route

The role and principles of tourist zoning in Bulgaria

The article describes the experience with tourist zoning in Bulgaria - main principles and goals of the tourism zoning into separate tourist regions. The tourist regions and their main indicators have been analyzed. The Concept was approved in 2015 and plays a key role in the development of the Bulgarian tourist product on the international market and the popularization of the country as an all-year round tourist destination. Currently the tourist zoning occupied the entire territory of the country and consists of nine regions: Danube Region, Balkan Mountains Region, Rose Valley Region, Thracian Region, Rhodope Region, Rila-Pirin Region, Sofia Region, Northern Seaside Region, Southern Seaside Region. Each of the above regions has its own specialization and uniqueness, which allows for a more effective regional marketing and makes each region more recognizable. The article summarizes the system of management of the regions and the government’s support in the creation of organizations which participate in the management of the tourist regions. A comparative analysis of the tourist zoning has been made in comparison with other EU countries like Ireland, Croatia, and Romania. The result of the analysis shows that the other countries also have regions with disproportionate allocation of territory and level of development of tourist development. As a conclusion, a well-developed tourist zoning is an effective instrument for the development of the tourism potential and the diversification of the tourist product taking into account the needs of the international markets. The tourist zoning experience can be used by Russia in the development of a marketing plan for the international market for tourist services

Morphology of the rat’s brain in four vessels model of ischemic stroke after administration of carbamylated darbepoetin

The aim was the study of the cerebroprotective effect of carbamylated darbepoetin in a four-vessel model of rat brain ischemia-reperfusion. A massive preconditioning cerebroprotective effect of carbamylated darbepoetin in the fourth group of animals and massive ischemic changes of the hippocampal and cortical neurons in the third group were revealed. These were manifested by karyopyknosis, karyorrhexis, and violation of stratification of CA1-CA3 layers of the hippocampu

Galectin-9 influences the Tim-3 molecule expression in natural killer different subpopulations

Galectin-9 is a b-galactoside binding lectin with expressed immunoregulatory activity. During pregnancy galectin-9 is produced by trophoblast cells and regulates the function of natural killer (NK) cells at the maternal-fetal interface via binding to Tim-3 (T-cell Ig and mucin domain-containing protein 3) molecules. Natural killer (NK) lymphocytes belong to the innate lymphoid cells, which have a cytotoxic effect on target cells and are capable of producing a large number of regulatory factors (cytokines, chemokines). Decidual NK have a tolerant phenotype and play a leading role in the regulation of invasive trophoblast growth and provide peripheral immune tolerance in the area of uteroplacental contact. Peripheral NK cells express Tim-3 molecules. Galectin-9 concentration is increased in peripheral blood during physiologic pregnancy. At pregnancy phenotype and functions of peripheral NK cells are changed to maintain the maternal–fetal immune tolerance. Peripheral NK cells migrate to the maternal-fetal interface and are transformed into a decidual NK-like phenotype cells. Galectin-9 concentration is decreased in women with a  complicated  pregnancy and miscarriage. However the galectin-9 effects on different NK cell subpopulations of peripheral blood are not investigated. Therefore, we studied the galectin-9 influence on phenotype transformation and Tim-3 expression of NK cells isolated from peripheral blood of healthy non-pregnant fertile women. CD56+NK cells were obtained by immunomagnetic separation and cultivated in vitro during 72 hours with cytokines (IL-2 and IL-15). Galectin-9 (5 ng/mL) and anti-Tim-3 (10 mg) antibodies were added to the NK cultures. Galectin-9 concentration is corresponded to its level during first trimester of physiologic pregnancy. The number of regulatory NK (CD16-CD56bright), cytotoxic NK (CD16+CD56dim/-) cells and Tim-3 expression on different NK subpopulations were assessed by flow cytometry. It was found that Tim-3 was expressed on all subpopulations of peripheral blood NK cells (CD16-CD56brightNK, CD16+CD56dimNK, CD16+CD56-NK). Incubation with galectin-9 increased the expression of Tim-3 on regulatory CD16-CD56brightNK cells and did not change on cytotoxic CD16+CD56dim/-NK cells. Galectin-9 reduced the percentage of cytotoxic CD16+CD56dimNK in culture, but did not influence the number of regulatory CD16-CD56bright NK and cytotoxic CD16+CD56-NK cells. Thus, galectin-9 regulates Tim-3 molecule expression and NK cell subpopulation distributions in vitro culture

Influence of Magnetic Field on Properties of Cement Compound on the Base of Boron-Containing LRW

At present boron-containing LRW cementation is an actual objective. At traditional cementing the grout on the base of boron containing LRW does not only harden, but also even does not stiffen. To obtain a cement compound with satisfactory regulated properties, a number of additives, for example, alkali (to correct pH), hydroxide or calcium salts, alkali metal hydrosilicates are applied, which complicates technology and requires LRW chemical continuous composition control

ТЕХНОЛОГИЧЕСКОЕ РАЗВИТИЕ ФГУП «РосРАО» В РАМКАХ СОЗДАНИЯ ОТРАСЛЕВОЙ ИНФРАСТРУКТУРЫ ПЕРЕРАБОТКИ, КОНДИЦИОНИРОВАНИЯ И ХРАНЕНИЯ РАДИОАКТИВНЫХ ОТХОДОВ

This article describes promising technological solutions for the processing, storage and transportation of radioactive waste (RW) implemented by a leading Russian enterprise specializing in the field of radioactive waste management. Federal State Unitary Enterprise "RosRAO" performs nationallevel tasks to ensure nuclear, radiation and environmental safety in the treatment of all types of radioactive waste. To date, FSUE "RosRAO" has a number of ready-made solutions aimed at saving resources while maintaining the radiation and environmental safety by reducing logistics costs due to using large containers for transportation and storage; maximum recycling of waste at the site of its formation or interim storage with the help of mobile systems; creation and operation of easily erected facilities for temporary storage of solid radioactive waste before transferring it for conditioning or disposal. In recent years, we completed a number of major projects focused on improving the radioecological situation on the territory of Russia. The Regional Centre for conditioning and long-term storage of radioactive waste, largest in Russia, was put into operation in Sayda Guba in Murmansk region. Works for state needs were performed to bring radiationhazardous objects to a safe state and to reclaim territories of the Russian Federation subjects exposed to radiation as a result of past activities in the Trans-Baikal and Stavropol territories, Kirov, Moscow, Ivanovo and Orenburg regions.Описаны перспективные технологические решения по переработке, хранению, транспортированию радиоактивных отходов (РАО), внедряемые ведущим в РФ специализированным предприятием в области обращения с РАО. ФГУП «РосРАО» выполняет государственные задачи по обеспечению ядерной, радиационной, экологической безопасности при обращении со всеми видами РАО. К настоящему времени ФГУП «РосРАО» имеет ряд готовых решений, направленных на экономию ресурсов при сохранении радиационной и экологической безопасности путем снижения логистических издержек за счет использования крупнотоннажных контейнеров для транспортирования и хранения; максимальной переработки РАО на месте их образования или промежуточного хранения с помощью мобильных комплексов; создания и эксплуатации легковозводимых сооружений для временного хранения твердых радиоактивных отходов до передачи на кондиционирование или захоронение. В последние годы завершен ряд крупных проектов, направленных на улучшение радиоэкологической обстановки на территории России: введен в эксплуатацию крупнейший в России Региональный Центр кондиционирования и долговременного хранения РАО в Сайда Губе Мурманской области, выполнены работы для государственных нужд по приведению в безопасное состояние радиационно опасных объектов и рекультивации территорий субъектов РФ, подвергшихся радиационному воздействию в результате прошлой деятельности в Ставропольском и Забайкальском краях, Кировской, Московской, Ивановской, Оренбургской областях

Определение возможности модернизации системы на основе дугового плазмотрона для газотермического напыления керамических материалов с использованием топливного вихревого интенсификатора. Часть II: Теплотехническая оценка и экспериментальное тестирование

The main trends in the field of improving thermal spraying processes for ceramic coatings formation is, along with enhancement of coating properties, also the reducing the energy consumption for the process. In this regard, one of the important directions for improving these technologies with plasma is the development of their new versions, using the principle of adding inexpensive fuel-oxidizing mixtures based on hydrocarbons (natural gas, liquefied gas) with air. This type of plasma-fuel type of spraying will be promising for application at the present time, first of all, in order to obtain refractory functional coatings. For this purpose, the opportunity for upgrading an industrial unit/system for plasma spraying of powder materials with arc plasma torch of 25–40 kW power was investigated with the use of experimental variant of a fuel gas-vortex intensifier. Herewith the thermal engineering assessment for possible parameters of the generated high-temperature flow from the torch with this intensifier was carried out to compare these with established thermodynamic characteristics on the applicability range of this system for optimization of the oxide and carbide coating spraying process (using the examples of Al2O3, Cr3C2 and other powders); and gas dynamic and heat transfer calculations of the intensifier operating regimes in this model unit was also performed. New regimes, which were analyzed in our research as the simulants of Al2O3 spraying, have the advantage over the N2-plasma regimes from the point of view of such kinetic parameter of powder processing as ability of heating factor of hot gas medium. Taking into account the calculated data, the experimental system was developed based on the standard spraying unit UPU-3D with a fuel intensifier of the selected design and the preliminary testing of its operation was carried out at the power of 30±2 kW under the following combination of gases in the torch: nitrogen and mixture of liquefied petroleum gas with air. This system has shown the stable operation in certain range of parameters and, according to the zonal calorimetrical measurement and photo-registration of jets, it provides 30–35 % more energy emission from torch generated jet (with attached fuel vortex chamber) in atmospheric conditions, in a comparison with the torch regime with pure N2-plasma with the same power on the arc of plasma heater. Use of the system creates an opportunity to spray carbide powders as well as oxide ones at improved intensity of coating producing in a comparison with standard regimes of commercial spraying units with N2 or Ar plasmas.К основным тенденциям в технологиях газотермического напыления керамических покрытий, наряду с оптимизацией их свойств, относится и снижение энергоемкости процесса. При этом одно из направлений в данных процессах с плазмой – это разработка новых их вариантов с использованием введения в теплоноситель недорогих смесей углеводородов с окислителем. Для решения этой задачи рассмотрена возможность модернизации промышленной системы для напыления порошковых материалов на основе дугового плазмотрона на 25–40 кВт путем применения пробного варианта топливного газо-вихревого интенсификатора. При этом сделана упрощенная теплотехническая оценка возможных параметров генерируемой высокотемпературной струи плазмотрона с данным интенсификатором для сравнения с термодинамическими данными по применимости данных систем с целью формирования оксидных и карбидных покрытий (на примере Al2O3, Cr3C2 и других порошков), а также газодинамический и тепловой расчет режимов плазменно-топливного интенсификатора в такой системе. Изученные новые режимы – имитаторы напыления Al2O3, имеют преимущество над азотно-плазменными режимами с точки зрения кинетического параметра нагрева порошков – фактора нагревательной способности (ability of heating factor, AHF) газовой среды. С учетом полученных данных выполнена разработка экспериментальной системы на базе стандартной установки напыления УПУ-3Д с интенсификатором выбранной конструкции и проведено тестирование ее работы при мощности 30 ±2 кВт и сочетании газов: азота и смеси сжиженного газа (пропан-бутана) с воздухом. Система показала стабильную работу в определенном интервале параметров и, согласно результатам предварительных калориметрических измерений и фоторегистрации струй, обеспечивает внешнее энерговыделение от выходящей из плазмотрона с топливной насадкой струи больше на 30–35 % по сравнению с вариантом работы данного нагревателя с азотной плазмой при той же мощности на дуге. Использование системы открывает возможность для напыления как карбидных, так и оксидных порошков при повышенной производительности получения покрытий в сравнении с традиционными режимами промышленных установок на азотной или аргоновой плазме