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Основные характеристики постурального баланса стойки профессиональных хоккеистов и новичков
Национальный психологический журнал. 2022. Т. 46. № 2. С. 65–79.
Background. Stance (or posture) is the fundamental posture of a hockey player, allowing him to perform various movements during training and playing processes. However, studies of postural balance of hockey players are scarce. Objective. Ye main aim of the study was to test methods of tracking a hockey player’s posture using the DTrack2 and SteamVR Tracking 2.0 systems, as well as to compare static postural characteristics of professional hockey players and beginners, based on the analysis of changes in knee and hip joint angles and head position, during a Zve-minute stance-keeping task. Results. Analysis of movements with the DTrack2 system and the SteamVR Tracking 2.0 system showed identical results, allowing further use of the SteamVR Tracking 2.0 system. Analysis of the positional tracking data showed that professional hockey players were characterized by a greater amplitude of oscillation (1–2 degrees) than novices (no more than 1 degree) when maintaining their stance. Professional hockey players are also characterized by a signiZcantly smaller amplitude of oscillation of the head position during performance of tasks. Qualitative analysis of changes in angles of knee and hip joints showed that professional hockey players, in contrast to beginners, have a higher and more stable amplitude of movement parameters [uctuations during the whole study, which in turn allows to optimize energy expenditure and provide better posture stabilization. Conclusions. Yus, the results of the study indicate the importance of correct head positioning in stabilizing the postural balance of a hockey player. For posture maintenance, the hip strategy of postural balance maintenance, associated with a greater amplitude of hip joint oscillation, is the most optimal.
Naumov A., Рубцов А. С., Samsonov S. et al., Успехи математических наук 2026 Т. 81 № 4 (490) С. 161–162
Краткое сообщение рассматривает Моментные оценки для стохастической аппроксимации ...
Added: October 17, 2026
Roman Avdeev, Yulia Zaitseva, Mediterranean Journal of Mathematics 2026 Vol. 23 No. 7 Article 224
We provide an infinite series of commutative finite-dimensional Gorenstein local algebras A_n for n ≥ 2. We give an elementary proof that the maximal ideal of every algebra A_n possesses a one-dimensional subspace that is different from the socle and invariant under the automorphism group of A_n. The latter implies that the algebras A_n fail ...
Added: October 17, 2026
Gordin V. A., Efremenko D., Boundary-Layer Meteorology 2026 Vol. 192 No. 51
An inverse problem of reconstructing the turbulent exchange tensor from large archives of observed wind profiles within the Åkerblom–Ekman (A-E) model framework is investigated using high-vertical-resolution radiosonde observations. The reconstructed tensor provides improved agreement between modeled and observed wind profiles compared to classical formulations based on real turbulent exchange coefficient. Instead of the classical A-E ...
Added: October 16, 2026
Petrovskiy V., Психология. Журнал Высшей школы экономики 2016 Т. 13 № 3 С. 612 – 622
Два открывателя новизны, два мыслителя, один в науке, другой в искусстве — Владимир
Лефевр и Антонио Гауди — обнаруживают глубинное персональное сходство: нестандартность решений, многообразие компетенций, проницательность интуиции, эстетику мысли,
смелость фантазии — все это «их общее». Архитектор новаторской рефлексивной теории,
В.А. Лефевр перебросил мост между двумя реалиями – по ту и по сю сторону Я человека.
Теоретики-предшественники имели ...
Added: October 16, 2026
V. A. Petrovsky, Scientific and Technical Information Processing 2022 Vol. 49 No. 6 P. 472 – 480
This paper focuses on reflexive problematic statements represented by modal judgments of validity (subjective truth) and their combinations. It is proposed to describe these statements at three levels: reflexive problematic statements per se, modal judgments that characterize the validity of sentences constituting complex statements, and matrix representations of modal judgments. Modal judgments, as part of ...
Added: October 16, 2026
Kuznetsov A. P., Sedova Y. V., Stankevich N., Chaos, Solitons and Fractals 2026 Vol. 213 No. 12 Article 119309
We analyze the interaction of a quasi-periodic subsystem, in which two-, three-, and four- frequency quasi-periodic oscillations are possible, with a chaotic subsystem. A discrete version is obtained via the Euler scheme from the corresponding flow model. The dynamics of individual subsystems are discussed, including quasi-periodic bifurcations of invariant tori and the occur rence of ...
Added: October 16, 2026
Aleksei Samarin, Nazarenko A., Nazarenko D. et al., Machine Learning and Knowledge Extraction 2026 Vol. 8 No. 10 Article 330
Automated microscopic image analysis is essential for quantitative microbiology, yet manual acquisition and generic recognition models struggle with morphological variability and scene artifacts. We address both ends of this pipeline. First, we present a low-cost, open-source acquisition system, based on an Arduino UNO R3 microcontroller and NEMA 17 stepper motors, that automates focusing, magnification, and ...
Added: October 14, 2026
Parkhomenko V., Kulikova S., Buzmakov A. V., Lobachevskii Journal of Mathematics 2026 Vol. 47 No. 6 P. 2979–2992
The stability of formal concepts and its generalization as robustness are considered in the paper. We use an approximation of stability in the form of Δ-measure for fast calculations. A computationally efficient method for calculating robustness based on subcontexts is presented. We also present a new method to analytically evaluate the number of preimages for ...
Added: October 14, 2026
Kuznetsov A. P., Sedova Y. V., Sataev I. R. et al., Mathematics and Computers in Simulation 2027 Vol. 2 P. 574–592
Universal bifurcation structures on the parameter plane of nonlinear systems, known as shrimps, are discussed. An overview of numerous examples from various fields of science is given. Shrimps are typical for both maps of different dimensions and flows. The varieties of shrimp are discussed and relevant examples are given. The similarity property on the parameter ...
Added: October 14, 2026
Zolotareva A., Kazennaya E., Углова А. А., Вопросы психологии 2026 Т. 72 № 1 С. 108–118
Шкала проэкологического поведения (Pro-Environmental Behavior Scale, PEBS) оценивает как индивидуальные его проявления, так и участие в проэкологической деятельности совместно с другими людьми. Целью настоящего исследования является адаптация русскоязычной версии PEBS в условиях реальной экологической катастрофы. Волонтеры, ликвидирующие последствия разлива нефти в Керченском заливе (n = 205), а также респонденты, не занимающиеся волонтерской деятельностью (n = ...
Added: October 13, 2026
Zalyubovsky E., Petrovskiy V., Культурно-историческая психология 2023 Т. 19 № 3 С. 13 – 22
The paper substantiates the concept of the existence of a “transvital Self”, a particular form of an individual’s existence beyond the apparent forms of vital function and the processes of reproducing self as a psychophysical integrity. The author uses the term “transvitality” (as in A. Akopyan’s “transvital meanings”) to more generally address this concept as ...
Added: October 13, 2026
Petrovskiy V., Культурно-историческая психология 2023 Т. 19 № 1 С. 35 – 40
The concept of the I that is present in the scholarly and mundane consciousness is inwardly paradoxical, as it contains the risk of regression to “bad infinity”. Thus, “I see an object” obviously creates in me the image of the object; by implication, “someone” inside me sees the image of the perceived object and, consequently, ...
Added: October 13, 2026
Gusein-Zade S., Campillo A., Delgado F., Mathematische Zeitschrift 2026 Vol. 314 No. 1 P. 1–22
For a subfield $\K$ of the field $\C$ of complex numbers, we consider curve and divisorial valuations on the algebra $\K[[x,y]]$ of formal power series in two variables with the coefficients in $\K$. We compute the semigroup Poincar\'e series and the classical Poincar\'e series of a (discrete, rank one) valuation on it. ...
Added: October 13, 2026
Vikhrova E., Petrovskiy V., Высшее образование в России 2025 Т. 34 № 12 С. 10 – 32
This paper examines the psychological well-being of university students across various learning formats (in-person, online, and hybrid) and reflects on the role artificial intelligence (AI) tools play in supporting this well-being. The paper analyzes the impact of the learning formats on the dynamics of anxiety and depression levels in students, on their coping strategies for ...
Added: October 12, 2026
Mishuris G., Meylan M. H., Pelinovsky E., Journal of Fluid Mechanics 2026 Vol. 1045 Article A4
In this paper, we revisit the classic problem of a wave field on a sloping beach of an arbitrary angle and propose a general approach that allows the computation of regular solutions of the problem regardless of the angle. We use the Mellin-transform technique, reducing the problem to singular integral equations with fixed-point singularities of ...
Added: October 12, 2026
Yusupova E., Ogundele K. S., Durodola F. A., Social Psychology of Education 2026 No. 29 Article 127
This study examines the association between teacher expectations and mathematics growth among first-grade students in Russia. The sample included 1,155 students and 48 teachers from public schools in two Siberian regions. Students’ mathematics performance was assessed using START, with vertical test alignment used to measure individual growth. Multilevel regression models estimated on 20 multiply imputed ...
Added: October 12, 2026
Gusein-Zade S., М.: МЦНМО, 2026.
Книга содержит курс лекций по дифференциальной геометрии и топологии, читавшихся автором на механико-математическом факультете МГУ в разные годы. В дополнениях приводятся некоторые сюжеты (связности в расслоениях, теорема Фробениуса, производные Ли и др.), которые были включены в курс в отдельные годы либо содержались в аналогичных курсах лекций в Независимом московском университете.
Для студентов математических и физических специальностей. ...
Added: October 12, 2026
WANG P., YANG Y., ZHANG Y. et al., Chinese Journal of Applied Psychology 2025 Vol. 31 No. 1 P. 45–53
Objective: To revise The Developmental Crisis Questionnaire (DCQ) and test its reliability and validity in adult age groups. Methods: The Chinese version of DCQ was determined by item analysis and exploratory factor analysis, and its structure was determined by confirmatory factor analysis. Finally, the reliability and validity of the scale were tested. Results: The 10 items of Chinese DCQ ...
Added: October 11, 2026
Брычков М. Е., Незнанов А.А., Программирование 2026 № 4 С. 50–66
The matrix profile (MP) quickly became one of the most important time series preprocessing methods when it was introduced in 2016, facilitating the solution of a wide range of time series analysis problems, in particular anomaly and pattern detection problems. The high significance has led to the emergence of various tools for MP calculating, but ...
Added: October 9, 2026
М.: Юрайт, 2026.
The Collection of Olympiad Problems (COP) in Probability Theory and Mathematical Statistics (PTMS) is offered as a teaching aid primarily for university students and faculty as a developmental supplementary resource, expanding the range of problems to be solved in lectures, seminars, and out-of-class independent work with students in various formats, including (as the title suggests) ...
Added: October 9, 2026
Kirasirova L., Tugin S., Gorin A. et al., Journal of Visualized Experiments 2026
This protocol describes an approach to investigate cardiac phase-dependent modulation of visual event-related potentials utilizing simultaneous electroencephalography and electrocardiography recordings. The protocol details stimulus synchronization, cardiac phase segmentation, and event-related potentials analysis during systole and diastole, and is applicable in both conventional two-dimensional and immersive virtual reality environments. ...
Added: October 2, 2026
Лескина Э. И., Panarina M., Закон 2026 № 5 С. 142–153
Статья посвящена анализу правовых аспектов использования персональных данных в современном искусстве в условиях цифровой трансформации гражданского оборота. Авторы исследуют эволюцию искусства от традиционных форм к иммерсивному цифровому искусству (VR/AR), где биометрические данные, предпочтения и поведенческие характеристики зрителей становятся основой для создания интерактивных цифровых произведений. Рассматриваются отдельные принципы оборота данных, этические вызовы (манипуляция информацией, риски для ...
Added: June 12, 2026
СПб.: АО "ЦТСС", 2025.
В научном издании представлены труды Двенадцатой всероссийской научно-практической конференции по имитационному моделированию и его применению в науке и промышленности «Имитационное моделирование. Теория и практика» (ИММОД-2025) по следующим направлениям: - теоретические основы и методология имитационного и комплексного моделирования; - методы исследования и оценки качества моделей, валидация и верификации моделей; - методы и системы распределенного моделирования; - ...
Added: April 17, 2026
Eremenko J., Kosonogov V., Aksiotis V. et al., Frontiers in Human Neuroscience 2025 Vol. 19 Article 1635673
SD analysis identified cross-modal associations between sensory stimuli and retail zones, allowing refinement of semantic positioning. VR experiments revealed that HRV significantly increased in pleasant environments, indicating enhanced parasympathetic activation. HR and EDA showed no significant correlation with emotional valence, though both displayed trends toward reduction in pleasant conditions. ...
Added: November 26, 2025