Application of Multimedia Chrestomaty for Developing the Skills of Independent Work in High-Class Guitarists

This article substantiates the relevance and necessity of using information computer technologies in the educational process, including the system of additional music education for children. The paper describes the capabilities of a multimedia reader, including learning to play the guitar to develop the skill of independent work. The definitions are given and the content of such concepts as “independent work”, “the skill of independent work” in relation to playing the guitar is revealed. The conditions providing the development of this skill in children are presented. The content of the developed multimedia reader for the first grades of the children's art school for the guitar class is described. The article presents the results of an experimental research study and analyzes the testing of a multimedia reader in the municipal Autonomous cultural institution “Children's Art School No. 5” in Yekaterinburg.Обосновывается актуальность и необходимость применения информационных компьютерных технологий в образовательном процессе, в том числе в системе дополнительного музыкального образования детей. Описаны возможности мультимедийной хрестоматии при обучении игре на гитаре для развития навыка самостоятельной работы. Даны определения и раскрыто содержание таких понятий, как «самостоятельная работа», «навык самостоятельной работы» применительно к игре на гитаре. Представлены условия, обеспечивающие развитие данного навыка у детей. Описано содержание разработанной мультимедийной хрестоматии для обучающихся первых классов детской школы искусств по классу гитары, рассмотрены результаты опытно-поискового исследования и проведен анализ апробации мультимедийной хрестоматии в муниципальном автономном учреждении культуры «Детская школа искусств № 5» города Екатеринбурга

Dynamics of the Free Surface of a Conducting Liquid in a Near-Critical Electric Field

Near-critical behavior of the free surface of an ideally conducting liquid in an external electric field is considered. Based on an analysis of three-wave processes using the method of integral estimations, sufficient criteria for hard instability of a planar surface are formulated. It is shown that the higher-order nonlinearities do not saturate the instability, for which reason the growth of disturbances has an explosive character.Comment: 19 page

Polyhedral Analysis using Parametric Objectives

The abstract domain of polyhedra lies at the heart of many program analysis techniques. However, its operations can be expensive, precluding their application to polyhedra that involve many variables. This paper describes a new approach to computing polyhedral domain operations. The core of this approach is an algorithm to calculate variable elimination (projection) based on parametric linear programming. The algorithm enumerates only non-redundant inequalities of the projection space, hence permits anytime approximation of the output

Assessing socio-economic damage caused by coxarthrosis in the population

Background. About 40 % of patients diagnosed with coxarthrosis annually seek medical help and receive social support due to this disease. Increased use of an expensive surgery for treatment of coxarthrosis and projected growth of its prevalence in the population determine the relevance of socio-economic analysis. The aim of the study. To assess the value and structure of economic damage caused by the delivering health and social care to patients with coxarthrosis at the state level of the Russian Federation. Methods. To assess economic damage, we used the average annual number of various categories of patients and disabled people with coxarthrosis in the Irkutsk region for 2008–2017. Three main categories were identified: patients who visited the outpatients’ clinic; patients with total hip replacement; disabled people due to coxarthrosis. For each category, we calculated weighted average damage per  1  conventional patient, taking into account direct and indirect costs and subsequent multiplication by the average annual number of individual categories of patients. Calculations were performed in 2017 prices. Results. The average annual socio-economic damage from coxarthrosis amounted to 1.39 (1.34÷1.43) billion rubles or 0.1 % of the gross regional product. The most of the damage (64.4 %) were indirect costs associated with disability due to coxarthrosis, 22.2  % of the total amount were the costs of hip replacement surgery, 13.4 % were the costs of outpatient visits. Indirect economic losses due to disability in patients of working age were 4.2 times higher than losses due to disability of oldage pensioners. Conclusion. The results of the study confirm the economic feasibility of surgical treatment of coxarthrosis, especially in patients of working age

Взаимозависимость природоохранной деятельности и инвестиционной привлекательности: финансы российской металлургии

All countries now share a long-term vision of the importance of implementing technology development and transfer to improve climate resilience and reduce greenhouse gas emissions. Metallurgical enterprises play a significant role in achieving this goal, since they produce a large amount of carbon dioxide emissions into the atmosphere. In connection with the changing operating conditions and changing markets of presence, the issues of ensuring their investment attractiveness are acquiring obvious importance in the framework of the finances of Russian metallurgical companies. The object of the study is an assessment of the investment attractiveness of Russian metallurgical companies. The subject of the study is the relationship between the investment attractiveness of metallurgical companies and the results of their environmental protection activities. The purpose of this study is to identify the interdependence of environmental metrics and the investment attractiveness of steel companies. The methodological basis is a regression analysis of the impact of environmental metrics on the investment attractiveness of metallurgical companies. The authors chose the following indicators of environmental performance: CO2 emissions, energy consumption, water recycling, waste. To assess the investment attractiveness of metallurgical companies, the following indicators were used: revenue, EBITDA, investment in R&D. The authors concluded that the environmental activities of companies have a significant impact on their investment attractiveness. The scientific novelty of the study lies in identifying the interdependence of environmental protection activities and the investment attractiveness of Russian metallurgy companies. The results of the study can be used by both Russian steel companies and institutional investors as part of the development of an investment strategy.В настоящее время все страны разделяют долгосрочное видение важности реализации разработки и передачи технологий для повышения устойчивости к изменению климата и сокращения выбросов парниковых газов. Значительную роль в достижении этой цели играют предприятия металлургической отрасли, поскольку они являются производителями большого количества выбросов углекислого газа в атмосферу. В связи с меняющимися условиями функционирования и сменой рынков присутствия очевидную важность в рамках финансов российских металлургических компаний приобретают вопросы обеспечения их инвестиционной привлекательности. Объектом исследования является оценка инвестиционной привлекательности российских металлургических компаний. Предмет изучения — связь между инвестиционной привлекательностью металлургических компаний и результатами проводимой ими природоохранной деятельности. Целью данного исследования является выявление взаимозависимости экологических метрик и инвестиционной привлекательности металлургических компаний. Методологическую основу составляет регрессионный анализ влияния экологических метрик на инвестиционную привлекательность металлургических компаний. Авторы выбрали следующие показатели экологической деятельности: выбросы CO2 , потребление энергии, вторичное использование воды, отходы. Для оценки инвестиционной привлекательности металлургических компаний использовались следующие показатели: выручка, EBITDA, инвестиции в НИОКР. Авторами сделан вывод о существенном влиянии экологической деятельности компаний на их инвестиционную привлекательность. Научная новизна исследования заключается в выявлении взаимозависимости природоохранной деятельности и инвестиционной привлекательности компаний российской металлургии, результаты исследования могут быть использованы как российскими металлургическими компаниями, так и институциональными инвесторами в рамках разработки инвестиционной стратегии

The clinical aspects ot the sulphonylurea compounds from the position of the cardioprotective approach at patient with type 2 diabetes, using glucocardiomonitoring

BACKGRAUND: Now the trend of Type 2 Diabetes Mellitus (T2DM) management from glucocentric to cardioprotective approach take place, and it especially relevant for the multiple group of patients with T2DM using Sulphonylurea (SU). Meanwhile the synchronized glucocardiomonitoring allowed to providing the accurate information about the cardiometabolic status of patients with T2DM.AIMS: Using the professional glucocardiomonitoring for T2DM-SU patients to investigate the relation between the glycemic variability, integral glycemic parameters and proarrhythmogenic cardiovascular events and the long-term cardiovascular outcomes.MATERIALS AND METHODS: In the observational (randomised for inclusion of patients) controlled trial the SU-patients with the T2DM duration 9,8±6,6 years were included, whom the professional glucocardiomonitoring had been made during 5 days and then the fatal and non-fatal cardiovascular events had been investigated during 5 years. RESULTS: From 283 patients with T2DM 154 patients (the basic group) used gliclazide (original drug Diabeton MB), 129 patients (the control group) used glibenclamide. The relation between the rising of the glycemic variability and cardiovascular events (the prolongation QT interval, the ST depression (dST), ventricular arrhythmias (VAs)) were demonstrated. At the basic and the control groups the coefficient of variation (CV) was 23,0±8,1 and 30,1±10,7% respectively (p<0,001), TIR-HYPO — 0,8±2,4 and 3,5±5,4% (p<0,001), the number of glycemia differences > 4 mmol/L/hr — 2,3±3,6 and 3,5±4,3 (p=0,010), the minimal glycemia level — 4,6±1,0 and 3,9±1,4 mmol/L (p=0,001). The followed differences of cardiovascular parameters were determined: QTc — 412±24 and 423±28 ms (p=0,001), dST — 0,052 [0; 0,275] and 0,109 [0; 0,422] (ratio, p=0,012), VAs — 2,2 [0; 5,9] and 3,5 [0; 8,3] (cases/pts, p=0,008). The long-term cardiovascular outcomes from the gliclazide and glibenclamide therapy (cases/100 pts-years): the total and cardiovascular death — 0,12 [0; 1,74] and 0,76 [0; 4,62] (p=0,062), cardiovascular death -0,12 [0; 1,74] and 0,62 [0; 4,08] (p=0,122), myocardial infarction — 1,56 [0; 6,94] and 2,00 [0; 8,02] (p=0,193), stroke — 0,78 [0; 4,66] and 0,76 [0; 4,62] (p=0,169), chronic heart failure — 0,52 [0; 3,72] and 1,24 [0; 6,06] (p=0,095), MACE — 2,46 [0; 10,1] и 2,62 [0; 9,38] (p=0,095), severe hypoglycemia at home — 2,46 [0; 9,12] и 7,24 [0; 16,68] (p<0,001).CONCLUSIONS: It was demonstrated that the gliclazide (original drug Diabeton MB) administration is characterized with the better quality of glycemia control, the lower glycemic variability, the lower frequency of the SU-associated hypoglycemia, dST, VAs, the lower prolongation QTc interval. The implementation of the synchronized glucocardiomonitoring is necessary for minimization of the cardiovascular T2DM-complications and for the choice of the personalize

PREVALENCE AND STRUCTURAL CHARACTERISTIC OF COXARTHROSIS IN THE UST-ORDYNSK BURYAT DISTRICT

The prevalence of coxarthrosis in Ust-Ordynsk Buryat Region was defined as 19,8 ‰0 This article gives complex characteristics of coxarthrosis in the named region

a direct encoding for nnc polyhedra

We present an alternative Double Description representation for the domain of NNC (not necessarily closed) polyhedra, together with the corresponding Chernikova-like conversion procedure. The representation uses no slack variable at all and provides a solution to a few technical issues caused by the encoding of an NNC polyhedron as a closed polyhedron in a higher dimension space. A preliminary experimental evaluation shows that the new conversion algorithm is able to achieve significant efficiency improvements