Modelling and Calculation of Adaptive Devices of Automation, Control and Protection for Intellectual Electric Grid in Scilab Freeware Computer Mathematic Package

В работе исследованы возможности адаптации свободно распространяемого пакета компьютерной математики Scilab для решения специализированных вычислительных задач. Для этого в Scilab осуществлено моделирование и расчет ряда адаптивных устройств автоматики, управления и защиты для интеллектуальных электрических сетей, включая возобновляемые источники энергии. Были исследованы возможности пакета Scilab для выполнения последовательных расчетов с использованием большого числа математических функций, решения систем линейных алгебраических уравнений, анализа результата, решения задач оптимизации, построения двумерных и трехмерных графиков функций и др. Все расчетные решения, полученные для Scilab, были проанализированы в сравнении с аналогичными решениями, полученными для Mathcad. Полученные результаты подтверждают возможность использования Scilab для указанных целей и демонстрируют ряд преимуществ при применении пакета в обучении на электротехнических специальностях и проведении научных исследований

What drugs do hypertension patients take in clinical practice? Structure of antihypertensive drugs in a large siberian region

Objective. To assess the frequency of prescribing of different groups of antihypertensive drugs (AHD) in the treatment of patients with arterial hypertension (AH) among patients of the Krasnoyarsk territory according to the Russian epidemiological studies ESSE-RF.Materials and methods. 1,603 persons aged 25–64 years, selected through systematic stratified multistage randomization among the population attached to the four outpatient clinics of Krasnoyarsk and Berezovsky district hospital were studied. All included subjects were subjected to a detailed survey of office blood pressure measurements. Results. The proportion of those on monotherapy was 53.4%. The most commonly accepted AHD, including in the combination therapy, were angiotensin-converting enzyme inhibitors (ACEI) – in 51% of cases, beta-blockers – 28.9 percent, angiotensin receptor blockers (ARBS) – 25,2%, diuretics – 23,2%, calcium channel blockers (CCB) – 11.9%, central action drugs – 2.0% and alpha-blockers – 0.4 percent. Beta-blockers often were taken by those of younger age – 38.1 per cent, mainly men aged 25–34 years (50.0 per cent). Among the combinations of AHD the most frequently encountered combination was ACEI + diuretic (6,8%), followed by rthe frequency of prescription by ARBS + diuretic, beta-blocker + diuretics, ARBS + CCB, ACE-I + CCB.Conclusion. The frequent prescription of ACE inhibitors and insignificant use of central action is noted. The high level of violence of use of AHD monotherapy in patients with hypertension (53,4%) is alarming, which may be one of the reason for the relatively low efficiency of antihypertensive therapy (31.6 percent). Beta-blockers were indicated unreasonably often for young men with hypertension aged 25–34 years

COMORBIDITIES OF ISCHEMIC HEART DISEASE WITH OTHER NON-COMMUNICABLE DISEASES IN ADULT POPULATION: AGE AND RISK FACTORS ASSOCIATION

Aim. To study the prevalence of ischemic heart disease as one of the most common cardiovascular disorders, together with arterial hypertension (AH), diabetes mellitus (DM) and liver diseases (LD) in adult (25-64 y.o.) population of selected RF regions, the variance of those with gender and age, and association of cardiovascular risk factors (FR).Material and methods. Into analysis we included the results of representative selections studies from 13 RF regions, studied according to the program of multicenter study ESSE-RF during the years 2012­2014; totally 21923 patients studied. Investigation included standard questioning, including anamnesis. For statistics we used applied software SAS.Results. In men the prevalence of IHD is associated with the growth of comorbidity from 0 in the age group 25-34 y. to 77% in the age 55-64 y., almost duplicating every decade. For women there is analogic tendency, less prominent. In men there are significant associations only with AH, which increases the risk of IHD 2,5 times, though in women together with AH the associations are significant for LD. Comorbidities with DM do not influence the prevalence of IHD in men and women. At the same time, any association with two diseases increases the risk of IHD >304 times. The most negative is the association of all three diseases, with which IHD is 8,7 times more prevalent, than in their absence. Using multidimensional logistic regression after correction for the age and comorbidity in the patients with IHD of both genders, there are associations revealed of high density cholesterol lipoproteids (HDL) in blood and abdominal obesity. In men there are also positive associations with smoking and negative — with increased cholesterol.Conclusion. Comorbidities of IHD with AH, DM and LD in adult population are common, are associated with the general FR, are increasing with the age. Taking modern tendencies of population ageing, it is plausible to expect an increase of the prevalence of comorbidities, that requires a necessity of the healthcare services to these changes

SOCIAL AND ECONOMIC GRADIENTS OF BEHAVIORAL RISK FACTORS IN RUSSIAN POPULATION (BY THE ESSE-RF STUDY)

Aim. To study social and economic gradients — educational and occupational statuses, wealth level, behavioral risk factors (FR) in Russian population by the ESSE-RF data.Material and methods. The data for the analysis consisted of representative selections of 13 regions of RF (n=22906) participants of the study, incl. men (n=8353) and women (n=13553) of 25-64 y.o., with response 80%. We calculated the odds ratios for the presence of behavioral FR: smoking, excessive alcohol consumption, insufficient physical activity (IPA), nonrational food consumption, anxiety and depressive disorders, — in persons from different social and economic groups by education level, type of inhabitation, professional status, wealth level.Results. Higher education was associated with better FR profile, except IPA (negative association) and alcohol consumption (absence of association). "White in general had less FR probability than Blue, excl. IPA and psychoemotional deviations (in men). As for the wealth association with the FR there is backward gradient, i.e. lesser the income, higher the risk of FR presence, excl. IPA and excessive alcohol intake in women. For example, in very wealthy men the odds ratio for depressive states was 3,09 [95% CI 2,08-4,57] comparing to the persons with low income. The type of territory of inhabitance was associated with less behavioral FR in Russian population, as significant associations are found only for depression and excessive salt consumption in both genders and IPA in men. Conclusion. The significant social and economic gradients of behavioral FR prevalence are found, the direction of those is not necessary the same as in European countries. The analysis of association with social and economic parameters would help to develop the directed preventive interventions

AWARENESS AND TREATMENT SPECIFICS OF STATIN THERAPY IN PERSONS WITH VARIOUS CARDIOVASULAR RISK: THE STUDY ESSE-RF

Aim. To assess rate of familiarity and specifics of treatment with statins among the citizens of economically active age with various cardiovascular risk by the data from epidemiological study ESSE-RF (Epidemiology of Cardiovascular Diseases in Different Russian Federation Regions). Material and methods. In the work the data from ESSE-RF study was used,  of representative  selection  of non-organized  male and  female inhabitants aged 25-64 y.o. from 13 regions, investigated during 2012-2014. Responded ~80%. The study included questionning by standard scale that included data on the anamnesis, etc. Lipid profile, including total cholesterol  (TC), cholesterol  of lipoproteids low and high density were measured at SSRCPM and RSPCC.Results. Analysis of the whole selection showed that 20% of men and 32% of women knew their TC, and 13,6% and 18,2% were even familiar having increased  level of TC. Part of those with high and very high risk was 31,3%, incl. men — 42,2%, women — 30,9%. Statins took ~7,0% of patients from this risk category. Effectiveness of treatment (target levels reached  of low density cholesterol) in these groups of men and women was 14,4% and 4,8%, respectively.Conclusion. The data obtained in populational study points on insufficient knowledge and low rate of statin treatment  of the persons with high and very high cardiovascular  risk in RF, which confirms the anxiety provoking data of registries and other studies. The data dictates necessity  of development  and implementation of specific educational programs for citizens, of physician improvement and availability of cheap but effective lipid-lowering medications