86 research outputs found

    Evaluation of efficiency of repulsion in speed-and-strength types of athletics

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    Efficiency of repulsion in speed-and-strength types of athletics is an integral measure of skill, since the performance of repulsive movements involves interaction of almost all organs and body systems. Dynamic repulsion lays the foundation for high sports results and the conditions of effective interaction of internal and external forces. With the special test exercises, one can determine the level of functioning of individual systems, on which the result of an exercise depends, which during training sessions provides focused opportunity to influence the stimulation of individual systems, increasing their level of activity. The article presents an electromyographic evaluation of the effectiveness of repulsion during the high jump at a run. The implementation of this method will make it possible to objectively evaluate the level of technical skills of athletes and purposefully influence the improvement of basic biomechanical characteristics of sports exercises

    Management of technical skills of highly qualified female athletes specializing in athletic jumps

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    Significant improvement of efficiency in managing technical mastery of female athletes-jumpers depend on the operational response to the emerging new technologies, their approbation and implementation in practice. The article introduces new opportunities for the use of simulators in the process of technical training of highly qualified female jumpers. The authors demonstrate the principal possibility of the applied use of the "facilitating-the-leadership" simulator for improvement of motor actions of female athletes. Obtained results show evident prospects of further expanding of the use of technology and simulators in the system of present-day preparation of highly skilled female athletes

    Frontiers, challenges, and solutions in modeling of swift heavy ion effects in materials

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    Since a few breakthroughs in the fundamental understanding of the effects of swift heavy ions (SHI) decelerating in the electronic stopping regime in the matter have been achieved in the last decade, it motivated us to review the state-of-the-art approaches in the modeling of SHI effects. The SHI track kinetics occurs via several well-separated stages: from attoseconds in ion-impact ionization depositing energy in a target, to femtoseconds of electron transport and hole cascades, to picoseconds of lattice excitation and response, to nanoseconds of atomic relaxation, and even longer macroscopic reaction. Each stage requires its own approaches for quantitative description. We discuss that understanding the links between the stages makes it possible to describe the entire track kinetics within a multiscale model without fitting procedures. The review focuses on the underlying physical mechanisms of each process, the dominant effects they produce, and the limitations of the existing approaches as well as various numerical techniques implementing these models. It provides an overview of ab-initio-based modeling of the evolution of the electronic properties; Monte Carlo simulations of nonequilibrium electronic transport; molecular dynamics modeling of atomic reaction on the surface and in the bulk; kinetic Mote Carlo of atomic defect kinetics; finite-difference methods of tracks interaction with chemical solvents describing etching kinetics. We outline the modern methods that couple these approaches into multiscale multidisciplinary models and point to their bottlenecks, strengths, and weaknesses. The analysis is accompanied by examples of important results improving the understanding of track formation in various materials. Summarizing the most recent advances in the field of the track formation process, the review delivers a comprehensive picture and detailed understanding of the phenomena.Comment: to be submitte

    Engineering Education in the Context of Digitalization and Transition to a Green Economy (SYNERGY 2022 Conference Results Review)

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    The article summarizes the results of the plenary session of the international network conference β€œEngineering education in the context of digitalization and transition to a green economy – SYNERGY-2022” held at the Nizhnekamsk Chemical Technology Institute of Kazan National Research Technological University from October 13 to 14, 2022. The forum was devoted to the training of engineers in the conditions of digitalization and the transition to a green economy. It brought together representatives of universities and industrial enterprises of Russia and abroad. Among the participants were representatives of national research universities and supporting universities of PJSC Gazprom, state authorities and industrial enterprises of Tatarstan. It was possible to observe the work of the plenary session in real time via the Internet in all the main universities of Gazprom. The organizers of the event were the Ministry of Science and Higher Education of the Russian Federation, the International Society for Engineering Pedagogy (IGIP), the Association of Engineering Education of Russia (AEER), as well as the Ministry of Industry and Trade of the Republic of Tatarstan and the Kazan National Research Technological University. Gazprom PJSC was the general sponsor. In total, the conference gathered more than 200 participants (120 online and 80 in person) from 15 universities in Russia, Germany and Kazakhstan. Representatives of 12 industrial enterprises spoke, 42 reports were made

    Innovative entrepreneurship in education: A new look in the students training content and existing problems

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    Β© 2016, Econjournals. All rights reserved.This article is aimed at scientific and methodological justification of students’ training content to innovative entrepreneurship. The leading method in the study of this problem is the analysis of students’ innovative entrepreneurship learning experience in Russian universities, which reveals the predominance of the traditional approach in the content of students’ training, as well as unwillingness of the teaching staff and students to innovate. The article identified the necessary competences in the field of innovative entrepreneurship (professional, business, functional, social and communicative), as well as entrepreneurial qualities (integrity, credibility, intelligence, presence of imagination, ability to make decision, ability to organize control, to provide justification of decisions); the methodology of students’ gradual of entrepreneurial competences is developed; factors blocking the effectiveness of the students’ entrepreneurial competences’ formation are revealed

    Physical Health of Males Residents from the Lowland Districts of Ukrainian Transcarpathia During the Post-Pubertal Period Depending on the Component Body Composition

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    Objective of the research was to determine the aerobic and anaerobic productivity of males from the lowland districts of Ukrainian Transcarpathia during the post-pubertal period, depending on the component composition of body weight. Physical health status of 112 subjects was assessed by indicators of aerobic and anaerobic productivity depending on the component composition of the body, which was determined by impedance measurements. Physical health status was assessed by indicators of the aerobic productivity of the body, namely, the maximum oxygen consumption was measured (VО2 max) using the bicycle ergometry method. To evaluate the level of aerobic productivity, the Pyarnat’s rating scale was used. Indicators of anaerobic productivity of the body were studied by: the power of anaerobic alactic energy supply processes by the Peak Power Output in 10 s (WAnT10); the power of anaerobic lactic energy supply processes by the Peak Power Output in 30 s (WAnT30), using the Wingate anaerobic test described by Yu.M. Furman et al. The highest level of aerobic productivity in terms of the relative value of maximal oxygen consumption was found in young males who have normal body weight with a very high relative content of skeletal muscle, a low relative content of fat, and a normal level of visceral fat. An increase in the fat component has a negative effect on the body's aerobic energy supply among young males from lowland districts of Ukrainian Transcarpathian region. On the contrary, the growth of the muscle component of the body weight helps to increase the aerobic capacity of the body. Among all examined males, no individuals with Β«excellentΒ» or Β«goodΒ» level of aerobic productivity of the body were found

    Optimization of routine immunohistochemical diagnostics of Hodgkin’s lymphoma in a large oncomorphology department

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    Π’ΠΎ determine the panel of immunohistochemical (IHC) markers, suitable for morphological confirmation of Hodgkin's lymphoma (HL). Materials and Methods: Verification of the 300 cases was based on histological and IHC analysis using antibodies to CD30, CD15, PAX-5, CD45, CD20, CD3, fascin, BLA-36. Results: 'Molecular portrait* of Reed-Stemberg cells in cases of 'classic' HL varied: the frequency of positivity to CD30 was 98%, C015 - 74%, PAX5 - 96%, CD45 - 3%, the CD20 -13%, fascin - 96%, BLA-36 - 78%. The most common histological types of HL was nodular sclerosis (NS). Less commonly diagnosed mixed-ceilularity HL - 90 (30%), the classic lymphocyte predominant -10 (3.3%) and lymphocyte depleted - 5 (1.7%). Nodular lymphocyte predominant variant was diagnosed in 5 (1.7%) cases. Conclusion: IHC method allows reliable verification of Hodgkin's lymphoma and its variant. We can recommend assessment of CD30, PAX5, CD15, fascin as first-line diagnostic markers of HL, and antibodies BLA36, CD20, CD45 as auxiliary markers.ЦСль: ΠžΠΏΡ€Π΅Π΄Π΅Π»ΠΈΡ‚ΡŒ панСль иммуногистохимичСских (Π˜Π“Π₯) ΠΌΠ°Ρ€ΠΊΠ΅Ρ€ΠΎΠ² для диагностики Π»ΠΈΠΌΡ„ΠΎΠΌΡ‹ Π₯ΠΎΠ΄ΠΆΠΊΠΈΠ½Π° (Π›Π₯). ΠœΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»Ρ‹ ΠΈ ΠΌΠ΅Ρ‚ΠΎΠ΄Ρ‹: ΠŸΡ€ΠΎΠ²ΠΎΠ΄ΠΈΠ»ΡΡ гистологичСский ΠΈ Π˜Π“Π₯ Π°Π½Π°Π»ΠΈΠ· 300 случаСв Π›Π₯ с Π°Π½Ρ‚ΠΈΡ‚Π΅Π»Π°ΠΌΠΈ ΠΊ Π‘ΠžΠ—Πž, CD15, PAX-5, CD45, CD20, CD3, фасцину, BLA-36. Π Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹: Β«ΠœΠΎΠ»Π΅ΠΊΡƒΠ»ΡΡ€Π½Ρ‹ΠΉ ΠΏΠΎΡ€Ρ‚Ρ€Π΅Ρ‚Β» ΠΊΠ»Π΅Ρ‚ΠΎΠΊ Π ΠΈΠ΄-Π¨Ρ‚Π΅Ρ€Π½Π±Π΅Ρ€Π³Π° Π² случаях «классичСской» Π›Π₯ Π²Π°Ρ€ΡŒΠΈΡ€ΠΎΠ²Π°Π»: частота позитивности Π½Π° CD30 составила 98%, CD15 - 74%, РАΠ₯5 - 96%, ΠžΠ›Π - 3%, CD20 -13%, фасцин - 96%, BLA-36 - 78%. Π‘Π°ΠΌΡ‹ΠΌ частым гистологичСским Π²Π°Ρ€ΠΈΠ°Π½Ρ‚ΠΎΠΌ Π»ΠΈΠΌΡ„ΠΎΠΌΡ‹ Π₯ΠΎΠ΄ΠΆΠΊΠΈΠ½Π° оказался нодулярный склСроз (NS). Π Π΅ΠΆΠ΅ диагностировался смСшанно-ΠΊΠ»Π΅Ρ‚ΠΎΡ‡Π½Ρ‹ΠΉ Π²Π°Ρ€ΠΈΠ°Π½Ρ‚ - 90 (30%), классичСский Π²Π°Ρ€ΠΈΠ°Π½Ρ‚ Π±ΠΎΠ³Π°Ρ‚Ρ‹ΠΉ Π»ΠΈΠΌΡ„ΠΎΡ†ΠΈΡ‚Π°ΠΌΠΈ -10 (3,3%) ΠΈ Π²Π°Ρ€ΠΈΠ°Π½Ρ‚ с ΠΏΠΎΠ΄Π°Π²Π»Π΅Π½ΠΈΠ΅ΠΌ Π»ΠΈΠΌΡ„ΠΎΠΈΠ΄Π½ΠΎΠΉ Ρ‚ΠΊΠ°Π½ΠΈ - 5 (1,7%). Π’ 5 (1,7%) случаях выявлСн нодулярный Π²Π°Ρ€ΠΈΠ°Π½Ρ‚ с ΠΏΡ€Π΅ΠΎΠ±Π»Π°Π΄Π°Π½ΠΈΠ΅ΠΌ Π»ΠΈΠΌΡ„ΠΎΠΈΠ΄Π½ΠΎΠΉ Ρ‚ΠΊΠ°Π½ΠΈ. Π’Ρ‹Π²ΠΎΠ΄: Π˜Π“Π₯ ΠΌΠ΅Ρ‚ΠΎΠ΄ позволяСт Π²Π΅Ρ€ΠΈΡ„ΠΈΡ†ΠΈΡ€ΠΎΠ²Π°Ρ‚ΡŒ Π΄ΠΈΠ°Π³Π½ΠΎΠ· Π›Π₯ ΠΈ ΡƒΡ‚ΠΎΡ‡Π½ΠΈΡ‚ΡŒ Π΅Ρ‘ Π²Π°Ρ€ΠΈΠ°Π½Ρ‚. Π’Π½Π°Ρ‡Π°Π»Π΅ ΠΌΠΎΠΆΠ½ΠΎ Ρ€Π΅ΠΊΠΎΠΌΠ΅Π½Π΄ΠΎΠ²Π°Ρ‚ΡŒ ΠΎΠΏΡ€Π΅Π΄Π΅Π»Π΅Π½ΠΈΠ΅ CD30, РАΠ₯5, CD15, фасцина, Π½Π° Π²Ρ‚ΠΎΡ€ΠΎΠΌ этапС-Π°Π½Ρ‚ΠΈΡ‚Π΅Π»Π° ΠΊ BLA36, CD20, ΠžΠ›Π

    DIFFERENTIAL CALCULATION METHOD OF A UNIVERSAL-MILLING TRACTOR

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    The article provides a methodology for calculating the differential parts for strength and crushing. Studies have shown that at the stage of designing a differential according to the method described, using the above expressions, you can previously check the semi-axial gears, satellites and axles of the satellites for strength and crushing. The calculations of the semi-axial gears, satellites and the axis of the satellites of the advanced symmetric gear differential developed for installation on a universal-row tractor, carried out by this technique, showed that they are efficient and meet the strength requirements

    LOCAL BLOOD FLOW AND MOTOR ACTIVITY JEJUNUM IN PATIENTS WITH EXTENSIVE PERITONITIS

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    Assessment of changes in local blood flow and motor activity of the jejunum in the early postoperative periodΒ  in patients with diffuse peritonitis helps to identifyΒ  intraabdominale complications and to clarify the indications for relaparotomy
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