ABSTRACT
As preventive, curative and restorative measures in modern conditions of the spread of infectious diseases (Covid 19), the use of sorption materials and detoxification methods with their use in hemosorption are of particular importance. It is known that hemosorption is an effective method of detoxification of the body, and no less important is the use of safe sorbents in relation to the shaped elements of blood, both time-tested sorbents and new, less studied, but more promising from the point of view of their safe production technology. The purpose of this work is to study with the help of scanning flow cytometry the effect of a sorbent with carbon nanofiber A1203@PDMS/CNF in comparison with a carbon-free sorbent A1203@PDMS on morphofunctional parameters erythrocytes. The study of the physico-chemical properties of sorbents was carried out according to standard methods. The biological properties of sorbents were evaluated by its effect on erythrocytes of erythrocyte concentrate during hemoperfusion of blood through columns with sorbents using the method of scanning flow cytometry according to the standard method. The data obtained using the method of scanning flow cytometry made it possible to conclude that the studied sorbents do not have a traumatic effect on the morphofunctional parameters of erythrocytes. The introduction of carbon nanofiber into the composition of the sorbent in an amount of 0.02% improves the functional parameters of blood erythrocytes both in comparison with the initial donor blood and compared to the sorbent without carbon. © 2022 IEEE.
ABSTRACT
Introduction. The unexpected transition to online teaching in spring 2020 resulted in educational institutions differently equipped in terms of technology, methodology and academic staff preparedness. Moreover, educational institutions faced with a totally new working environment. One may assume that during the pandemic, education systems of most countries crossed the Rubicon, and now there is no going back. What learning and teaching will be like in the future depends, to a large extent, on the lessons the teaching community will learn. The aim of the research was to find out how successful the emergency transition to teaching foreign languages online was and to identify technological resources necessary to maintain the quality of foreign language teaching and learning in different educational formats. Methodology and research methods. The research was carried out in line with the learner-centered activity approach and principles of distant teaching and learning;it also included analysis of online teaching practices across the world before and during the COVID-19 pandemic. The research data was collected via three surveys conducted (with Google forms) among foreign language teachers of MGIMO University (1329 questionnaires) in April, June and September, 2020;15 heads of foreign language(s) departments (July 2020), and 201 MGIMO students (September 2020). The data was analysed using IBM SPSS Statistics: correlation and cross tabulation analyses, linear regression analysis, and ANOVA. Results. In the course of the research, the correlations between class activities, selfstudy assignments, forms of assessment, and students' engagement in learning have been established;as well as the fact that individual approach in teaching has a positive effect on students' activity, responsibility and academic independence. Furthermore, the problems in online teaching have been identified: classes were not communicative enough, nor teaching sufficiently individualised;besides, the quality of assessment declined with the transition to online learning format. Scientific novelty. An attempt has been made to evaluate the experience of remote teaching foreign languages at university level after the emergency shift to online learning format, and to find out its potential for maintaining (and, in prospect, improving) the quality of language education. Practical significance. Class activities, self-study assignments and forms of testing found the most effective in this research can be of use to foreign language teachers working online. The need to provide individual trajectories for students to develop communicative competence in a foreign language has been established, which is important for course, programme and teaching materials designers. © 2022 Russian State Vocational Pedagogical University. All rights reserved.
ABSTRACT
The main directions and approaches to the implementation of measures for the prevention and treatment of the disease caused by the novel coronavirus SARS-CoV-2 against the backdrop of the further spread of the COVID-19 epidemic are presented. Experience shows that in infection of many thousands of people, some of them are asymptomatic and pauci-symptomatic, severe or critical cases are observed in up to 1/3 of the patients that may need intensive care. The quality, effectiveness and final result of medical care depend on the level of professional, organizational, material, technical, psychological preparation of the healthcare system, the entire community of specialists, including infectious disease specialists, resuscitators, general practitioners, etc., middle and junior medical workers. © HIV Infection and Immunosuppressive Disorders
ABSTRACT
In this number, we begin publication of case series devoted to epidemiology, clinical picture, diagnosis, treatment, prevention, medical and social consequences of COVID-19. Taking into account the situation anxiety, infection scope and spread rate, involvement of the whole nation into the problem irrespective of gender, age, social affiliations along with comprehensive observing social and medical prevention measures, preemptive training and continuing education of medical specialists are essential considering that novel coronavirus is new not only viewed from its molecular biological features perspective but also from the perspective of possible difficulties of diagnosis and treatment, clinical features, high risk of development of critical conditions and complications, high mortality rate that has been shown by an example of China, USA, and European Countries. In the first report, we tried to highlight the experience gained in the study of novel coronavirus nature, epidemiology, pathogenesis and clinical manifestations, give information from literature sources based on the experience of our colleagues in coping with serious disease and its consequences. © 2020 Baltic Medical Educational Center.
ABSTRACT
The main directions and approaches to the implementation of measures for the prevention and treatment of the disease caused by the novel coronavirus SARS-CoV-2 against the backdrop of the further spread of the COVID-19 epidemic are presented. Experience shows that in infection of many thousands of people, some of them are asymptomatic and pauci-symptomatic, severe or critical cases are observed in up to 1/3 of the patients that may need intensive care. The quality, effectiveness and final result of medical care depend on the level of professional, organizational, material, technical, psychological preparation of the healthcare system, the entire community of specialists, including infectious disease specialists, resuscitators, general practitioners, etc., middle and junior medical workers. © 2020 Baltic Medical Educational Center.