Structural features of Ni-Cr-Si-B materials obtained by different technologies

This study considers the structural features of Ni-Cr-Si-B (Ni - base; 15.1 % Cr; 2 % Si; 2 % B; 0.4 % C) materials obtained by different methods. The self-fluxing coatings were deposited by plasma spraying on the tubes from low carbon steel. Bulk cylinder specimens of 20 mm diameter and 15 mm height were obtained by spark plasma sintering (SPS). The structure and phase composition of these materials were investigated by optical microscopy (OM), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray diffractometry (XRD). The major phases of coatings and sintered materials are [gamma]-Ni, Ni[3]B, CrB and Cr[7]C[3]. We demonstrate that the particle unmelted in the process of plasma spraying or SPS consist of [gamma]-Ni-NEB eutectic and also CrB and Cr[7]C[3] inclusions. The prolonged exposure of powder to high temperatures as well as slow cooling rates by SPS provide for the growth of the structural components as compared to those of plasma coatings materials. High cooling rates at the plasma spraying by melted particles contribute to the formation of supersaturated solid solution of Cr, Si and Fe in [gamma]-Ni. The structure of the melted particles in sintering material has gradient composition: the core constituted of Ni grains of 10 μm with [gamma]-Ni-Ni[3]B eutectic on the edges. The results of the experiment demonstrate that the sintering material has a smaller microhardness in comparison with plasma coatings (650 and 850 MPa, respectively), but at the same time the material has higher density (porosity less than 1 %) than plasma coatings (porosity about 2.. .3 %)

ETIOPATHOGENETIC THERAPY OF INFLAMMATORY DERMATOSES

In chronic dermatoses significantly increases the colonization of skin by bacteria and fungi, which can have a negative impact on the course of inflammatory process. Cream Candiderm is a modern combined topical drug that has anti-inflammatory, antibacterial and antifungal activity.The aim of the study was to assess the efficacy, safety and tolerability of the cream Candiderm in the treatment of patients with eczema and atopic dermatitis.Material and methods. 37 patients with AD and 28 patients with eczema. Applied cream Candiderm 2 times a day, which was applied to the affected area of the skin. Before and on the 14 day of therapy was conducted bacteriological examination of the microflora of the skin rashes.Results: at 14 days in patients with eczema remission was achieved in 17 (61 %) patients, significant improvement 6 (21 %), improvement in 4 (14 %), lack of effect in 1 (4 %); in patients with AD remission was observed in 23 (62 %) patients, significant improvement in 7 (19 %), and improvement in 5 (14 %), lack of effect in 2 (5 %).Conclusions: high clinical efficacy of the cream of Candiderm allows recommending it for topical therapy of patients with eczema and atopic dermatitis

Nature and society: the origins of conflict and the possibilities of harmony

The aim of the study – study this problem in order to identify new ways to solve it. Therefore, various historical approaches to understanding the relationship between society and nature are shown, the causes of the conflict that led to an ecological catastrophe are considered, the possibilities of returning to harmonious unity on a new cultural basis are considered.Цель исследования - изучить данную проблему с целью определения новых возможностей ее решения. Поэтому показаны различные исторические подходы к пониманию взаимосвязи общества и природы, рассмотрены причины возникновения конфликта, которые привели к экологической катастрофе, рассмотрены возможности возвращения к гармоничному единству на новой культурной основе

Bioethical problem of medical fault

The aim of the study - to research the problem of interpreting the term “medical mistake” by a bioethical and legal point of view.Цель исследования - изучить проблему трактовки термина «врачебная ошибка» с биоэтической и правовой точки зрения

Current status of the temperature and humidity regime of the troposphere in the Siberian sector in different circulation periods

The paper studies the long-term dynamics of air temperature and relative humidity anomaly indices in the surface layer and at different levels of the troposphere in Siberia and neighboring regions (European and Far Eastern sectors). As the main cause of the observed variations in climatic parameters we considered circulation factors, which were taken into account using the typification of macrocirculation processes proposed by B.L. Dzerdzeevsky. Seasonal differences were revealed in the distribution of anomaly indices and the area occupied by anomalies of different signs of annual and monthly mean temperature and relative air humidity, which are most pronounced during circulation periods of increased duration of meridional northern processes in the Siberian sector and in the Northern Hemisphere as a whole. The highest rates of change in the temperature regime in the Siberian sector over recent decades have been observed at the level of the isobaric surface AT–700 hPa (3 km), which affects the advective-dynamic factors of surface cyclo- and frontogenesis, as well as the processes of cloud formation and precipitation. In general, an increase in the heat content of the lower and middle troposphere and a decrease in the relative moisture content near the tropopause can be accompanied by an increase in the amount of the potential energy and convective instability energy reserves and can lead to an increase in climate risks in the Siberian sector

The philosophy of russian cosmism

The article examines the philosophy of Russian cosmism, as well as describes the concepts and directions of the largest representatives of this theory. The central idea of Russian cosmism - the idea of a "common cause" as the regulation of relations between man and the universe-is particularly relevant in the context of the global environmental crisisВ статье рассматривается философия русского космизма, а также описываются концепции и направления крупнейших представителей данной теории. Центральная идея русского космизма, - идея "общего дела" как регуляции отношений человека и Вселенной представляется особенно актуальной в условиях глобального экологического кризиса

ANALYSIS AND FORECASTING THE DYNAMICS OF ADVERTISING BOTS ACTIVITY

When introducing a new product or service to the market, a manufacturer or retailer is faced with the need to develop a promotion strategy. Taking into account the recent trends in e-commerce and social media marketing, it makes sense to evaluate the possibility of borrowing promotion strategies from producers of abstract, potentially  monetized electronic content. The article considers the activity of advertising bots using the example of the social network Facebook. The paper carries out an autocorrelation analysis of the observation results and reveals the frequency of automated requests to the user by advertising bots. The authors construct an autoregressive model of the dynamics of the activity of advertising bots and verbalize Facebook’s strategy to increase traffic to the  information space controlled by the social network

Analysis of views on the system of doctor-patient relationships of students of the ural state medical university

The purpose of the study is to determine the dominant, most preferred model of the doctor–patient relationship and to study the possible attitude of future healthcare workers towards patients.Цель исследования – определить доминирующую, наиболее предпочтительную модель взаимоотношений «врач-пациент» и изучить возможное отношение к пациентам у будущих работников сферы здравоохранения

Dynamics of endothelial function indexes in patients with post-Covid syndrome using a combination drug of ethylmethylhydroxyperidine succinate/vitamin B6

Aim: to evaluate endothelial function in patients after COVID-19 before and after treatment with combination drug of ethylmethylhydroxyperidine succinate (EMHPS)/vitamin B