340 research outputs found

    Influence of the reflector of the gas radiator on the intensity of radiant heating

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    The paper deals with the peculiarities of heating large-sized premises using gas infrared emitters, especially the provision of a thermal regime. The influence of the reflector configuration on the intensity of radiant heating is considered.В работе рассматриваются особенности отопления крупногабаритных помещений с использованием газовых инфракрасных излучателей, особенности обеспечения теплового режима. Рассмотрено влияние конфигурации отражателя на интенсивность лучистого отопления

    Language Errors in Translation from Foreign Language into Russian in Written Works of University Students

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    The problem of identifying and correcting language errors in the translation from a foreign language (German and English) into Russian in written works of students is considered. The question of one of the controversial problems in mastering foreign language speech, namely the attitude of teachers and students to grammatical, lexical and stylistic errors, is raised. It is noted that foreign and domestic methodologists have proved the position of error correction as an important element of foreign language teaching methods. The authors of the article pay attention to the work with errors at such a stage of learning as written speech. The article describes the importance of the analysis of language errors in written foreign language speech, as it allows to increase the level of literacy of part-time students in the performance of written tasks. Typical communicative mistakes of Russian-speaking students studying foreign languages are revealed. The article describes the long-term experience of foreign language teachers of a technical University with part-time students, which allows to assert that the work on errors is important not only for improving the language level of students, but also for the teacher. It is argued that the teacher should use error analysis for methodological and didactic developments intended for students

    New methods to detect early manifestations of adverse side effects of glucocorticosteroids in children

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    The article focuses on the early manifestations of adverse side effects in children with nephrotic syndrome receiving glucocorticosteroids. The search for criteria of early side effect manifestations is a real challenge nowadays. The authors developed new diagnostic criteria for early detection of pharmacotherapeutical side effects in children with nephrotic syndrom

    Pathogenetic features of acute naphazoline poisoning in children

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    Acute poisoning by nasal decongestants is an important issue in pediatrics due to physiological and anatomical characteristics of the child’s body and pharmacokinetics of drugs in early childhoo

    The Formation of Indicator Framework for Effective Assessment of Investment Attractiveness of the Region

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    Despite the in-depth study of many theoretical aspects of investment activities and assessment of investment attractiveness, today the impact of the investment policy on the development of an effective strategy and the formation of favorable investment climate is not properly reflected in the contemporary research. At the same time unstable situation in socio-economic development of Russia requires new approaches to the problem of investment activity. In this regard, the article provides indicator framework to assess properly the investment attractiveness of the region's economy relating to foreign direct investment in the current context. At that, the proposed indicator framework is based on a number of principles, which allow achieving the objective assessment of investment attractiveness of regions and feasibility of the concerned indicators. Keywords: foreign direct investment, investment activity, investment climate, assessment of investment attractiveness, region's economy. JEL Classifications: F21; F51; H77; O2

    Сellular composition and cytokine profile of synovial fluid in rheumatoid arthritis

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    Rheumatoid arthritis (RA) ranks first among chronic joint diseases. The disease often affects people at their working age, being accompanied by significant decrease in the life quality of patients and their early disability. Rheumatoid arthritis is an immunoinflammatory rheumatic disease. Therefore, the immune system provides evolving focus of primary damage, its persistence and periodic exacerbation. Elucidation of intercellular relationships mediated by cytokines at various stages of the chronic inflammatory process is required in order to develop immunotherapeutic approaches, aimed for both recovery from exacerbations and maintenance of remission state. Purpose of our study was to evaluate cellular composition and cytokine profile of synovial fluid in the patients with rheumatoid arthritis at acute phase and in remission state.We have studied the samples of synovial fluid taken in 60 patients with rheumatoid arthritis, with 30 subjects being at acute stage of the disease, and 30 patients in remission. Cellular composition and cytokine profile were assessed in the clinical samples. There were 21 women and 9 men at the acute stage (57.0±15.4 years old), with the disease duration of 8.55±6.9 years. The average age of 19 women and 11 men examined in remission state was 53.5±10.9 years, with comparable duration of illness (6.9±5.8 years). The leukocyte phenotyping was performed with a CytoFLEX flow cytometer (Beckman Coulter, USA). The cytokine contents were measured by enzyme immunoassay using a standard set of reagents from the “Proteinovy Contour” LLC (Russia). The results were registered by a Multiscan photometer (Labsystems, Finland).During the disease exacerbation, the leukocyte contents in synovial fluid increased 2.4-fold, as compared to the remission values. The cellular infiltrate was represented by neutrophils, whereas the contents of lymphocytes and monocytes did not change. Increased migration of neutrophils was accompanied by an 8-fold increase in TNFα levels, compared with remission state, and IL-1β levels were increased by 6.3 times. The absolute number of CD3+T lymphocytes, CD16+CD56+B cells, and CD3-CD19+NK during exacerbation was similar to the remission levels. However, the number of T cell subpopulations was changed, i.e., the number of CD4+ lymphocytes was decreased, and CD8+ cell counts were increased, like as numbers of Treg lymphocytes and NKT cells which showed a significant increase. A 4.3-fold increase in the IL-4 concentration during the RA exacerbation suggested the predominance of Th2 immune response. During remission, the concentrations of IL-6 and IFNγ in synovial fluid were increased, respectively, by 1.5 times and by 2.5 times, which is typical for activated Th1 response

    Risk Factors for Obesity Development in Different Periods of Childhood

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    Obesity is an important health problem in many countries. Obesity among the child population is growing steadily, including the Russian Federation. Development of this disease often occurs in childhood and sometimes the origin of obesity goes back to prenatal period. There are a number of endogenous and exogenous factors than play an important role in development of obesity. These are heredity, socioeconomic status of the family, factors which are revealed during pregnancy and child delivery — weight gain, administration of antibacterial drugs and hyperglycemia in mother during her pregnancy, mode of delivery, feeding type and time of complementary food introduction, excessive consumption of calories with food, improper daily routine and lack of sleep, skipping meals, use of gadgets and associated physical inactivity and excessive food intake, marketing of high-calorie foods and others. Prevailing risk factors can be identified for each age period. Study and early identification of risk factors taking into account age of a child is necessary to take timely prevention measures and inform parents and their children about possible reasons and consequences of obesity

    Characteristics of blood pressure level in children with different body weight

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    BACKGROUND: Essential arterial hypertension (AH) develops more often in children with accompanying risk factors — obesity, overweight, positive heredity and genetic predisposition.AIM: Study of peculiarities of arterial hypertension clinical course in adolescents with normal body weight, overweight and obesity.MATERIALS AND METHODS: The study was conducted on children with arterial hypertension who received treatment in two hospitals in Voronezh in 2016–2020. A retrospective analysis of the children’s case histories was carried out taking into account the anamnesis, clinical laboratory and instrumental examination data and the pharmacotherapy. Some children underwent polymerase chain reaction genetic testing to determine pathological alleles of genes regulating blood pressure (BP).RESULTS: 96 patients aged 9 to 17 took part in the study. The group with normal body weight included 38 children (39.6%), median age 16.4 (aged 10.7; 17.9), with overweight — 33 people (34.4%), median age 15.2 (aged 12.0; 17.9), with obesity — 25 children (26.0%), median age 14.5 (aged 9.2; 17.9). Obese children developed arterial hypertension at earlier age (p = 0.023). According to blood pressure daily monitoring (BPDM), pathological values of systolic blood pressure (SBP) during the day (above the 95th percentile) among children with normal body weight were observed in 17 patients (44.7%), with excess body weight — in 14 people (42.4%), with obesity — in 16 people (64%), p = 0.031. Accurate difference values between the groups were obtained in terms of time index (TI) of SBP at night (p = 0.006). Time index of diastolic BP during the day > 50% was observed only in the obese children group — 4 people (16%) (p = 0.042). Pathological alleles of the angiotensinogen gene (AGT: 704 T>C), aldosterone synthase gene (CYP11B2: -344 C>T) and endothelial nitrogen synthase type 3 (NOS3: -786 T> C) were identified most frequently during genetic testing in some patients.CONCLUSION: Children with obesity developed earlier arterial hypertension compared to the same-age children with normal body weight and more often had unfavorable type of arterial hypertension according to BPDM. These results can be used to choose individual therapy and to develop special attention as regards certain target organs damage

    Breastfeeding challenges in infants with nasal breathing difficulties: alternative supplemental feeding methods

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    This review article highlights the features of breastfeeding in case of obstructed nasal breathing in infants, special attention is paid to non-sucking or alternative methods of bottle feeding with expressed breast milk for the period when breastfeeding is not possible or formula supplementation is necessary as an addition to breastfeeding.Breathing through the mouth is considered a pathological adaptation due to difficulty in nasal breathing and is associated with the development of many pathological conditions. There is an evidence base that prolonged breastfeeding is associated with nasal breathing at an older age, as well as the correct formation of the bite. The anatomical and physiological features of the structure of the upper respiratory tract in infants predispose to a more frequent occurrence of difficult nasal breathing compared to adults, which causes difficulties in breastfeeding, up to the refusal of the child’s breast. Therefore, knowledge of modern methods of supplementary feeding with expressed breast milk for this period, as well as ways to effectively and safely deal with nasal congestion in infants, will help doctors and parents to overcome the difficult period of the disease, accompanied by nasal congestion without loss and maintain breastfeeding for as long as possible, in the light of modern data on influence of breast milk on the subsequent life of mother and child.The main method of treatment for nasal congestion of various etiologies is irrigation-elimination therapy. According to the literature, good tolerability and no side effects were found when using a nasal aspirator used in conjunction with isotonic saline
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