Russian-Chinese relations in the field of agriculture during the COVID‑19 pandemic

Современная ситуация, связанная с пандемией COVID-19, оказывает значительное влияние на международное экономическое сотрудничество в сельском хозяйстве и инвестиционные проекты, связанные с этой сферой. Работа посвящена теме сотрудничества России и Китая в это непростое время.The current situation associated with the COVID-19 pandemic has a significant impact on international economic cooperation in agriculture and investment projects related to this area. This article is devoted to the topic of cooperation between Russia and China at this difficult time

Scanning Probe Microscopy of Elastomers with Mineral Fillers

The results of a comprehensive study of the newly synthesized elastomeric composites filled with micro- and nanoscale modified shungite and also taurit, diatomit, and neosyl fillers are presented. The surface structure study of the prepared composites was conducted using scanning probe microscopy. The use of microscopy allowed visualization of the distribution patterns of filler aggregates and agglomerates in composites. The morphology and micro-nanometer size ranges of these aggregates in the synthesized materials are determined. The proposed method of grinding shungite, taurit, diatomit, and neosyl fillers allows significantly increasing the strength characteristics of these composites. The correlation between the reinforcement of the elastic-strength properties and the distribution of the used fillers in the rubber matrix was established

Morphological changes in the brain in liver cirrhosis of alcoholic and viral etiology

Background. Hepatic encephalopathy is an actual problem of modern medicine. However, its pathogenesis and histological picture are currently insufficiently studied. Less is known about the impact of the nature of primary liver disease on pathogenesis and histological picture of hepatic encephalopathy. This determines the relevance of further morphological studies of the brain in the late stages of liver cirrhosis of various etiologies.The aim. To establish and compare the morphological changes in the brain in alcoholic liver cirrhosis and viral (hepatitis C virus (HCV)) cirrhosis.Materials and methods. The morphological study of the brain of 40 deceased in outcome of HCV-associated cirrhosis and 23 patients died in outcome of chronic alcoholism was carried out. Histological changes in various parts of the brain were studied using survey and elective stains. The immunohistochemical study of HCV NS3 and CD68 expression in different brain regions was performed in cases of HCV-infection.Results. The changes of neurons, glial cells and cerebral microvessels underlie in the basis of morphological picture of brain damage in both studied groups underlie that corresponds to the “classical” model of hepatic encephalopathy pathogenesis. At the same time, a number of morphological features were observed. The most prominent differences concerned the manifestations of the glial reaction. The productive changes of macroglial cells with the appearance of multiple Alzheimer’s astrocytes type 2 as well as spongious changes in subcortical white matter dominated in the observations of alcoholic cirrhosis. In contrast, microglia cells reaction (microgliosis) in white matter was noticed in HCV-associated cirrhosis.Conclusions. The differences in histological signs of brain in the terminal stages of liver disease of viral and alcoholic etiology are shown. They broaden current idea of morphological picture of hepatic encephalopathy, and may be used to study its pathogenesis

PROGRAM COMPLEX OF THE MULTICRITERIA COMPARATIVE ANALYSIS OF ECONOMIC SYSTEMS

The paper describes the software system of multi-criteria analysis of comparative economic systems - agraphical environment, which includes software andgraphical implementation of six algorithms (modules)of the multi-criteria analysis. To check the adequacy of the results of the program algorithms are comparedwith manual calculations

Impact of the Genre of Oral Discourse on the Distribution of Lexical and Grammatical Errors in 6-yearolds with Primary Speech Underdevelopment

В статье рассматривается влияние жанра устного дискурса на частоту и распределение ошибок в речи детей с первичным недоразвитием речи.The given paper is devoted to an urgent and underinvestigated issue - the impact of the genre of oral discourse on the frequency and distribution of errors in the speech of children with primary developmental speech/language disorder. Russian logopedic literature contains no linguo-statistical studies of speech/language errors of children with primary speech underdevelopment. The current study aims at experimental testing of the hypothesis that the distribution of errors may depend not only on linguistic competence, but also on the genre of the discourse produced by the child

Создание электропроводных резин с использованием смесевых композиций технического углерода

Positive influence on a complex of technological, physico-mechanical and electric elastomeric material properties at use of a combination of carbon black and the certain order of their introduction was establishedРассмотрено влияние введения смесевых наполнителей на комплекс технологических, физико-механических и электрических характеристик резин на основе каучука СКМС-30АРКПН. В качестве наполнителей были использованы пары наполнителей технический углерод марки П 367Э и П 803 и технический углерод марки УМ 85 и П 803. Выбран оптимальный режим введения технического углерода в резинов