Мотивация, заинтересованность, удовлетворенность – движущие силы на занятиях студентов по лыжной подготовке

The study addresses the issue of how to attract the students of non-physical specialties to ski training – a physical, health and socially significant type of activity; there is also an explanation of how such arguments in favor of such activities, increasing interest and motivation. The work contains the survey results, obtained from the second-year students (n=150): the first stage includes motivational factors in ski training – increasing a cold-resistance capacity of body (4.78±0.27), free move following the rules of safe social distance (4.65 ± 0.58), opportunity spend time in the nature, to get aesthetic pleasure (4.44 ± 0.90), opportunity to increase the aerobic capacity of the cardiovascular system through skiing (3.60 ± 1.23), when more than 90 % of the muscles are involved. Further, the main trends in improving the features and technique of ski training, which turned to be the most interesting for students, are identified: skiing at a steady pace by classical style (4.24 ± 1.23) accompanying with the desire to eliminate the technical errors – double-support sliding (143 people = 95.3 %); lack of slide (141 people = 94.0 %); poor sticks work (138 people = 92.0 %). The respondents have shown a real interest in mastering and improving the up-and-down move with different degrees (4.16 ± 0.45). The result of the study lies in defining a simple and easy-to-learn methods for improving the technique of skiing, focusing on the health improvement and dealing with the ski slopesРассмотрена проблема привлечения студентов нефизкультурных специальностей вузов к лыжной подготовке как физкультурно-оздоровительному и социально значимому виду физической нагрузки. Обоснована необходимость поиска аргументов в пользу таких занятий, повышения интереса и усиления мотивации. Приведены результаты социологического исследования среди студентов второго курса (n=150), где на первом этапе были определены факторы мотивации к лыжной подготовке: усиление степени закаливания организма и устойчивость к простудным заболеваниям (4,78±0,27), возможность свободного перемещения с необходимостью соблюдения санитарных норм (4,65±0,58), возможность побывать на природе в лесном массиве, получить эстетическое удовольствие от ее созерцания (4,44±0,90), возможность без ограничения пространства повышать аэробные возможности сердечно-сосудистой системы организма посредством ходьбы на лыжах (3,60±1,23), когда в работу вовлекается более 90 % мышц организма. Далее были определены актуальные направления совершенствования специфических качеств и технических элементов лыжной подготовки, наиболее значимые и интересные для студентов: ходьба на лыжах в равномерном темпе традиционным классическим стилем (4,24±1,23) с желанием устранить грубые ошибки в технике лыжного хода – двухопорное скольжение, отмеченное у 143 чел.– 95,3 %; практически отсутствие проката на скользящей лыже у 141 чел.– 94,0 %; очень слабое отталкивание палками у 138 чел.– 92,0 %. Очевидную заинтересованность студенты проявили в освоении и совершенствовании техники передвижения на спусках и подъемах разной крутизны (4,16±0,45). Итогом исследования стало определение простых и доступных в освоении методов совершенствования техники ходьбы на лыжах оздоровительной направленности, преодоление подъемов и спусков на лыжных трасса

Лыжная подготовка и спортивное ориентирование в блоковой программе учебной дисциплины «Физическая культура и спорт»

Together with the general health care, the training classes in Physical Culture and Sports for non-majors should focus on personal self-fulfillment thorough various forms of physical culture and sports. This has always been in the universities’ academic plans, and the current State Educational Standard (3++), which provides with 400 academic hours for Physical Culture and Sports, is not an exception. These days, the outdoor classes for students are more relevant than ever against the background of the ongoing COVID‑19 and restrictive social and sanitary measures (social distance). This work presents a module-base program and methodological support of teaching within the framework of Physical Culture and Sports discipline, including ski training, orienteering and general physical training. Each training module, which includes 8–13 comprehensive classes, is designed to implement an independent part of educational material following specific natural and climatic conditions. Its usefulness is tested through a pedagogical experiment on the students of Polytechnic School, Siberian Federal UniversityЦель учебных занятий по дисциплине «Физическая культура и спорт» для студентов нефизкультурных специальностей наряду с общим оздоровительным эффектом должна учитывать направленость на личностную самореализацию в разных формах физкультурно-спортивной практики. Это всегда находило отражение в программах обучения вузов, включая и ныне действующий Государственный образовательный стандарт третьего поколения, предусматривающий 400 академических часов для освоения программы учебной дисциплины «Физическая культура и спорт». Сегодня как никогда актуальны занятия для студентов на открытых пространствах на фоне продолжающейся эпидемии и ограничительных мер, вводимых для обеспечения безопасного расстояния между занимающимися по санитарным нормам. В данном исследовании представлено блоковое программно-методическое обеспечение учебного процесса в рамках общего курса дисциплины «Физическая культура и спорт», включающее лыжную подготовку, спортивное ориентирование и общую физическую подготовку. Каждый учебный блок, включающий 8–13 однонаправленных занятий, предназначен для реализации автономной доли учебного материала в соответствии с конкретными природно-климатическими условиями. Его эффективность подтверждена проведенным педагогическим экспериментом в учебном процессе студентов политехнического института СФ

Present-day and mid-Holocene biomes reconstructed from pollen and plant macrofossil data from the former Soviet Union and Mongolia

Fossil pollen data supplemented by tree macrofossil records were used to reconstruct the vegetation of the Former Soviet Union and Mongolia at 6000 years. Pollen spectra were assigned to biomes using the plant-functional-type method developed by Prentice et al. (1996). Surface pollen data and a modern vegetation map provided a test of the method. This is the first time such a broad-scale vegetation reconstruction for the greater part of northern Eurasia has been attempted with objective techniques. The new results confirm previous regional palaeoenvironmental studies of the mid-Holocene while providing a comprehensive synopsis and firmer conclusions. West of the Ural Mountains temperate deciduous forest extended both northward and southward from its modern range. The northern limits of cool mixed and cool conifer forests were also further north than present. Taiga was reduced in European Russia, but was extended into Yakutia where now there is cold deciduous forest. The northern limit of taiga was extended (as shown by increased Picea pollen percentages, and by tree macrofossil records north of the present-day forest limit) but tundra was still present in north-eastern Siberia. The boundary between forest and steppe in the continental interior did not shift substantially, and dry conditions similar to present existed in western Mongolia and north of the Aral Sea

Are Hamsters a Suitable Model for Evaluating the Immunogenicity of RBD-Based Anti-COVID-19 Subunit Vaccines?

Currently, SARS-CoV-2 spike receptor-binding-domain (RBD)-based vaccines are considered one of the most effective weapons against COVID-19. During the first step of assessing vaccine immunogenicity, a mouse model is often used. In this paper, we tested the use of five experimental animals (mice, hamsters, rabbits, ferrets, and chickens) for RBD immunogenicity assessments. The humoral immune response was evaluated by ELISA and virus-neutralization assays. The data obtained show hamsters to be the least suitable candidates for RBD immunogenicity testing and, hence, assessing the protective efficacy of RBD-based vaccines

Self-Assembled Particles Combining SARS-CoV-2 RBD Protein and RBD DNA Vaccine Induce Synergistic Enhancement of the Humoral Response in Mice

Despite the fact that a range of vaccines against COVID-19 have already been created and are used for mass vaccination, the development of effective, safe, technological, and affordable vaccines continues. We have designed a vaccine that combines the recombinant protein and DNA vaccine approaches in a self-assembled particle. The receptor-binding domain (RBD) of the spike protein of SARS-CoV-2 was conjugated to polyglucin:spermidine and mixed with DNA vaccine (pVAXrbd), which led to the formation of particles of combined coronavirus vaccine (CCV-RBD) that contain the DNA vaccine inside and RBD protein on the surface. CCV-RBD particles were characterized with gel filtration, electron microscopy, and biolayer interferometry. To investigate the immunogenicity of the combined vaccine and its components, mice were immunized with the DNA vaccine pVAXrbd or RBD protein as well as CCV-RBD particles. The highest antigen-specific IgG and neutralizing activity were induced by CCV-RBD, and the level of antibodies induced by DNA or RBD alone was significantly lower. The cellular immune response was detected only in the case of DNA or CCV-RBD vaccination. These results demonstrate that a combination of DNA vaccine and RBD protein in one construct synergistically increases the humoral response to RBD protein in mice