DEVELOPMENT OF STUDENTS’ COMMUNICATIVE CULTURE VIA ONLINE FOREIGN LANGUAGE INTERACTION

The article focuses on the use of digital technologies in the foreign language learning process and the formation of students’ communicative culture via online interaction. The issue discussed in this paper is very urgent because nowadays digital technologies are viewed as a comprehensive means of teaching a foreign language in a higher educational institution. General cultural competency and communicative culture, particularly, are considered as an integrative quality of a specialist concerning his potential for self-realization in his future career. In this regard, the actual problem is the methodically correct organisation of the educational process for students’ cultural development on the basis of digital technologies. The research is aimed at the theoretical substantiation of pedagogical effectiveness of the organization of online training in foreign language communication as a condition for the formation of the communicative culture of undergraduate students as well as the generalization of the results of experimental training. To verify the productivity of digital resources in foreign language training and cultural development of university students the authors conducted a pedagogical experiment using theoretical and empirical methods of scientific research. The results of the experiment proved the effectiveness of online teaching in mastering communicative culture components

ECOLOGICAL WORLDVIEW FORMATION OF ENGINEERING STUDENTS IN THE CONTEXT OF FOREIGN LANGUAGE TRAINING

The educational space of a non-linguistic university makes it possible to conduct a purposeful process of forming the ecological worldview and culture of future specialists in the logic of their professional development. According to the authors, the eco-oriented content of teaching a foreign language can make a great contribution to the implementation of this mission due to the great general cultural and educational potential of this discipline. The paper offers a comprehensive theoretical substantiation of the problem under study, reveals the essence, structure and methodology of the ecological worldview formation of engineering students. The authors make an attempt to model the educational process on the basis of interactive pedagogical technologies, the use of which allows students of non-linguistic areas to solve communicative problems on the basis of environmental topics. The totality of data obtained as a result of the experimental work carried out by the authors confirms the effectiveness of students’ ecological worldview formation through the inclusion of environmental-oriented content in the system of language training at the university

Evaluation of Colon-Specific Plasma Nanovesicles as New Markers of Colorectal Cancer

Purpose: Developing new and efficient approaches for the early diagnosis of colorectal cancer (CRC) is an important issue. Circulating extracellular nanovesicles (ENVs) present a promising class of cancer markers. Cells of well-differentiated adenocarcinomas retain the molecular characteristics of colon epithelial cells, and the ENVs secreted by these cells may have colon-specific surface markers. We hypothesize that an increase in the number of ENVs carrying colon-specific markers could serve as a diagnostic criterion for colorectal cancer. Experimental design: Potential colon-specific markers were selected based on tissue-specific expression profile and cell surface membrane localization data. Plasma was collected from CRC patients (n = 48) and healthy donors (n = 50). The total population of ENVs was isolated with a two-phase polymer system. ENVs derived from colon epithelium cells were isolated using immune-beads with antibodies to colon-specific markers prior to labelling with antibodies against exosomal tetraspanins (CD63 and CD9) and quantification by flow cytometry. Results: The number of ENVs positive for single colon cancer markers was found to be significantly higher in the plasma of CRC patients compared with healthy donors. The efficacy of detection depends on the method of ENV labelling. The diagnostic efficacy was estimated by ROC analysis (the AUC varied between 0.71 and 0.79). The multiplexed isolation of colon-derived ENVs using immune-beads decorated with antibodies against five markers allowed for a further increase in the diagnostic potency of the method (AUC = 0.82). Conclusions: ENVs derived from colon epithelium may serve as markers of differentiated CRC (adenocarcinomas). The composition of ligands used for capturing colon-derived ENVs and their method of labelling are critical for the efficacy of this proposed diagnostic approach

Voluntariado en educación superior como base para el desarrollo profesional de los docentes

The purpose of this paper is to define the role of volunteer activities in the professional development of future teachers who are currently students attending higher education institutions. The main research method used in this work is descriptive and qualitative, since analyze a number of volunteer students in the Pedagogical Institute at Ammosov North-Eastern Federal University (Sakha, Russia) on the basis of results of annual NEFU sociological research for the period 2017-2019 and examining their motivation for volunteering through a survey. Students volunteered in a wide range of activities: educational programs, academic practical training, preparation of scientific papers, and implementation of socially significant projects. When the pedagogical university students arranged their volunteer activities to relate to their future professional activities, they significantly broadened their knowledge about the chosen profession, reinforced their motivation for professional development, and generated adequate self-assessments of their personal and professional qualities as future teachers. In conclusion: professionally oriented volunteer activity as part of educating future teachers develops not only the required professional qualities and competencies but also becomes a stage of their professionalization, helping them to find their place of employment faster and developing their social and professional skill sets. The practical implications of the study lie in the possibility of using the research results to arrange volunteer activities at universities.El propósito de este trabajo es definir el papel de las actividades de voluntariado en el desarrollo profesional de los futuros docentes que actualmente son estudiantes de instituciones de educación superior. El principal método de investigación utilizado en este trabajo es descriptivo y cualitativo, ya que analiza un número de estudiantes voluntarios en el Instituto Pedagógico de la Universidad Federal del Nordeste de Ammosov (Sakha, Rusia) sobre la base de los resultados de la investigación sociológica anual de NEFU “Estudiante” para el período 2017-2019 y examinar su motivación por ser voluntario(a) a través de una encuesta. Los estudiantes se ofrecieron como voluntarios en una amplia gama de actividades: programas educativos, formación práctica académica, preparación de artículos científicos e implementación de proyectos socialmente significativos. Cuando los estudiantes universitarios de  pedagogía organizaron sus actividades de voluntariado para relacionarlas con sus futuras actividades profesionales, ampliaron significativamente sus conocimientos sobre la profesión elegida, reforzaron su motivación para el desarrollo profesional y generaron adecuadas autoevaluaciones de sus cualidades personales y profesionales como futuros docentes. En conclusión: la actividad de voluntariado con orientación profesional como parte de la formación de futuros profesores desarrolla no solo las cualidades y competencias profesionales requeridas, sino que también se convierte en una etapa de su profesionalización, ayudándoles a encontrar su lugar de trabajo más rápidamente y desarrollando sus habilidades sociales y profesionales. Las implicaciones prácticas del estudio radican en la posibilidad de utilizar los resultados de la investigación para organizar actividades de voluntariado en las universidades

The choice of soil models in the design of deep excavation in soft soils of Viet Nam

The use of diaphragm wall to protect the depth excavation is quite common in Viet Nam. Prediction of diaphragm wall deformations is required to choose the method of construction, and also for control of process of erection of an underground construction. Currently, there are many programs to calculate the deformation of the diaphragm wall, including software Plaxis. This paper considers the choice of a computational model for soils in the Hanoi - Viet Nam region of Mohr Coulomb (MC) and Hardening Soil (HS) and comparison of the calculation results with the measured data. Such investigations were conducted first

The choice of soil models in the design of deep excavation in soft soils of Viet Nam

The use of diaphragm wall to protect the depth excavation is quite common in Viet Nam. Prediction of diaphragm wall deformations is required to choose the method of construction, and also for control of process of erection of an underground construction. Currently, there are many programs to calculate the deformation of the diaphragm wall, including software Plaxis. This paper considers the choice of a computational model for soils in the Hanoi - Viet Nam region of Mohr Coulomb (MC) and Hardening Soil (HS) and comparison of the calculation results with the measured data. Such investigations were conducted first

Changes in temperature regime of soil in cryolithozone considering climate warming

The current climate change in Russia is characterized as continuing warming. There is an increase of the deformity and accident rate for buildings located in the cryolithozone. It is necessary to identify regions that in the future will be most susceptible to the permafrost degradation and associated risks for existing buildings and structures, which require considering climate warming in the forecast estimates. The purpose of this study was to assess the impact of climate warming on the temperature regime of the soils of the Norilsk district. Numerical modeling of the temperature variation of soil considering air temperature increase according to the regional climate model of the Voeikov MGO on 60 years showed temperature rise of permafrost, lowering its top and increasing the thickness of the seasonally thawed layer. The warming of the climate in the area will have a significant impact on the temperature regime of the soil and will lead to a violation of the operational suitability of existing buildings and structures. In the Norilsk region climate warming should be regarded as a significant accident occurrence factor, which should be considered when calculating the bases in the cryolithozone for the entire period of construction and operation of facilities

СОВЕРШЕНСТВОВАНИЕ КОНСТРУКТИВНО-ТЕХНОЛОГИЧЕСКИХ РЕШЕНИЙ И МЕТОДОВ РАСЧЕТА ПОКРЫТИЙ ПОДЗЕМНЫХ СООРУЖЕНИЙ

Предмет исследования: напряженно-деформированное состояние конструкций покрытий подземных сооружений, устраиваемых открытым способом, из разных видов бетона с монолитной связью слоев. Цели: верификация конечно-элементных программных комплексов, используемых для расчета напряженно-деформированного состояния грунтовых массивов, применительно к многослойным конструкциям покрытий с монолитной связью слоев. Материалы и методы: использованы методы компьютерного моделирования напряженно-деформированного состояния многослойных изгибаемых конструкций покрытий из разных видов бетона с монолитной связью слоев, используемых в малозаглубленных подземных сооружениях. В качестве программного обеспечения применен конечно-элементный программный комплекс ZSOIL. Результаты: определены рациональные области применения конструкций покрытий малозаглубленных подземных сооружений, которые способны воспринимать силовые вертикальные нагрузки и давление со стороны грунтового массива. Конструктивно-технологические решения покрытий подземных сооружений, в том числе покрытия пристраиваемых к возводимому зданию подземных автостоянок, отличаются малой материалоемкостью и повышенной технологичностью. Выводы: для подземных сооружений, устраиваемых в открытых котлованах, над которыми отсутствуют надземные этажи, в качестве альтернативных традиционным проектным решениям рекомендуется использовать многослойные покрытия c теплоизоляционным слоем из бетона низкой теплопроводности. Конкурентоспособные конструктивно-технологические решения покрытий и перекрытий малозаглубленных подземных сооружений получены на основе компьютерного моделирования напряженно-деформированного состояния c применением современных программных конечно-элементных комплексов

Construction of high-rise building with underground parking in Moscow

Paper presents results of scientific support to construction of unique residential building 108 m high with one storey underground part under high-rise section and 3-storey underground parking connected by underground passage. On-site soils included anthropogenic soil, clayey soils soft-stiff, saturated sands of varied grain coarseness. Design of retaining structure and support system for high-rise part excavation was developed. It suggested installation of steel pipes and struts. Construction of adjacent 3-storey underground parking by “Moscow method” is described in the paper. This method involves implementation of retaining wall consisted of prefabricated panels, truss structures (used as struts) and reinforced concrete slabs. Also design and construction technology is provided for foundations consisted of bored piles 800 MM in diameter joined by slab with base widening diameter of 1500 MM. Experiment results of static and dynamic load testing (ELDY method) are considered. Geotechnical monitoring data of adjacent building and utility systems settlement caused by construction of presented high-rise building were compared to numerical modelling results, predicted and permissible values

Construction of high-rise building with underground parking in Moscow

Paper presents results of scientific support to construction of unique residential building 108 m high with one storey underground part under high-rise section and 3-storey underground parking connected by underground passage. On-site soils included anthropogenic soil, clayey soils soft-stiff, saturated sands of varied grain coarseness. Design of retaining structure and support system for high-rise part excavation was developed. It suggested installation of steel pipes and struts. Construction of adjacent 3-storey underground parking by “Moscow method” is described in the paper. This method involves implementation of retaining wall consisted of prefabricated panels, truss structures (used as struts) and reinforced concrete slabs. Also design and construction technology is provided for foundations consisted of bored piles 800 MM in diameter joined by slab with base widening diameter of 1500 MM. Experiment results of static and dynamic load testing (ELDY method) are considered. Geotechnical monitoring data of adjacent building and utility systems settlement caused by construction of presented high-rise building were compared to numerical modelling results, predicted and permissible values