Utilizando tecnologías modernas para el desarrollo de ventajas competitivas del turismo regional

In the current socio-economic conditions, tourism represents a traditional area where active use of modern technologies is observed. The large number of tourism destinations provides the need for systematization of information, which facilitates the formation of routes or tours, and ensures the development of tourism based on the uniform use of tourism resource

Characteristics of hotel premises in Belgorod city

Hotel industry is regarded as one of the factors in the development of tourism and the initial basis for planning the production of the tourist product. It determines the specificity of the development of tourism, being the basis for the production of the tourism product in planning the priorities of the investment policy. The article presents the results of the authors’s research, as well as materials open print and electronic resources. The authors analyzed the state of hotel real estate market of Belgorod, the structure of the number of rooms, hotel occupancy assessed by type of rooms, highlighted promising areas of the hotel business. It should be noted, that the development of domestic tourism, the growth of business and cultural activity in the region will contribute to the further development of tourism infrastructure and, in particular, the hotel industryyesБелгородский государственный университе

Spatially Ordered Matrix of Nanostructured Tin–Tungsten Oxides Nanocomposites Formed by Ionic Layer Deposition for Gas Sensing

The process of layer-by-layer ionic deposition of tin-tungsten oxide films on smooth silicon substrates and nanoporous anodic alumina matrices has been studied. To achieve the film deposition, solutions containing cationic SnF2 or SnCl2 and anionic Na2WO4 or (NH4)2O·WO3 precursors have been used. The effect of the solution compositions on the films deposition rates, morphology, composition, and properties was investigated. Possible mechanisms of tin-tungsten oxide films deposition into the pores and on the surface of anodic alumina are discussed. The electro-physical and gas-sensitive properties of nanostructured SnxWyOz films have been investigated. The prepared nanocomposites exhibit stable semiconductor properties characterized by high resistance and low temperature coefficient of electrical resistance of about 1.6 × 10 −3 K −1. The sensitivity of the SnxWyOz films to 2 and 10 ppm concentrations of ammonia at 523 K was 0.35 and 1.17, respectively. At concentrations of 1 and 2 ppm of nitrogen dioxide, the sensitivity was 0.48 and 1.4, respectively, at a temperature of 473 K. At the temperature of 573 K, the sensitivity of 1.3 was obtained for 100 ppm of ethanol. The prepared nanostructured tin-tungsten oxide films showed promising gas-sensitivity, which makes them a good candidate for the manufacturing of gas sensors with high sensitivity and low power consumption

Characteristics of hotel premises in Belgorod city

yesHotel industry is regarded as one of the factors in the development of tourism and the initial basis for planning the production of the tourist product. It determines the specificity of the development of tourism, being the basis for the production of the tourism product in planning the priorities of the investment policy. The article presents the results of the authors’s research, as well as materials open print and electronic resources. The authors analyzed the state of hotel real estate market of Belgorod, the structure of the number of rooms, hotel occupancy assessed by type of rooms, highlighted promising areas of the hotel business. It should be noted, that the development of domestic tourism, the growth of business and cultural activity in the region will contribute to the further development of tourism infrastructure and, in particular, the hotel industryБелгородский государственный университе

Improvement of Technology for Management of Freight Rolling Stock on Railway Transport

We performed a statistical analysis of the time series of the volumes of cargo transportation. Studies have shown sufficiently high accuracy of prediction relative to the actual values of a railway transport system based on the mathematical apparatus of artificial neural network. The experiment revealed that the mean absolute percentage error for the volumes of transportation of grain and the products of flour mills amounted to 5.56 %. Given that railway transport is a fairly inert system, indicator of 5.56 % is sufficient for management decision making. By having predicted the level of cargo transportation, we determined the required number of wagons of a particular type, which would conform to the conditions of transportation of this particular cargo.The optimal technology of organization of railway wagon flows implies minimization of operational costs for the transportation of cargo. In order to find the best variant to move the wagons, we proposed to take into account irregularity factor, or seasonality. The application on the railway network of the result of solution of the proposed model enables the dispatcher, the one who handles wagons, to make rational management decisions. Such technology makes it possible to take both long-term and operational decisions directly in the system of organization of railway wagon flows.To automate management decision-making by operational personnel of railway transport, we simulated organization of wagon flows using the software. The simulation was carried out on a virtual polygon of railways. The procedure for obtaining rational decisions when managing freight rolling stock is universal and makes it possible to perform calculations for polygons of any size and at arbitrary time of plannin

Preterm birth: from understanding of pathogenesis to pregnancy management

Preterm birth is an important issue in the current obstetrics as it is associated with perinatal morbidity and mortality. Today, most studies are aimed at understanding of the pathogenesis of preterm delivery. The known data on cytokine gene polymorphism indicate that in women with preterm birth, the presence of pro-inflammatory dominant alleles is typical. This may lead to increased production of pro-inflammatory cytokines in the utero-placental complex and may also initiate preterm delivery. At present, studies are under way to identify genes that determine the duration of the gestation period. A better understanding of the preterm birth pathogenesis is expected to help prevent this unfortunate outcome and decrease perinatal morbidity and mortality

The health status of children born through assisted reproductive technologies: probable risks and possible complications

Most of the negative consequences for the health and development of children born through assisted reproductive technologies are related to health status of their mothers, i.e. infertility, age and the related metabolic, genetic and epigenetic changes affecting the quality of gametes and pregnancy. Improvement of the current techniques of in vitro fertilization, preimplantation genetic diagnosis and other preventive measures will have a favorable effect on the health status of such children