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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.
Gusev I., Maksaev A., Promyslov V., Journal of Mathematical Sciences 2025 Vol. 299 No. 6
The regular graph of the space of n × m matrices over a field F is defined as the undirected graph whose vertices are matrices of rank min(n, m), and distinct matrices A and B are connected by an edge if and only if rk(A + B) < min(n, m). In this paper, for |F| ...
Added: May 25, 2026
Dorri Sedeh S., Kosonogov V., Kerimova N. et al., Frontiers in Psychology 2026 Vol. 17 Article 1710257
Introduction:
As cities continue to grow, access to natural environments is becoming more limited, contributing to increased stress levels in urban populations. Panoramic 360° videos provide a creative and scalable means of simulating natural environments, potentially reducing stress in city residents under controlled settings. Here, we examined whether short immersive experiences in different urban environments support ...
Added: May 25, 2026
Kochetkova Ekaterina, Kostanian D., Martynova O. et al., Brain Topography 2026 Vol. 39 No. 4 Article 51
Letter recognition is assumed to involve several levels of analysis, including coarse tuning for category and novelty and more fine tuning for specific features, related to letter orientation. We employed an oddball fast periodic visual stimulation (FPVS) paradigm with magnetoencephalography (Elekta VectorView, 306 sensors) to study neural discrimination responses in the source space. Using contrasts ...
Added: May 24, 2026
Tyukin I., Tyukina T., van Helden D. P. et al., Information Sciences 2024 Vol. 678 Article 120856
AI errors pose a significant challenge, hindering real-world applications. This work introduces a novel approach to cope with AI errors using weakly supervised error correctors that guarantee a specific level of error reduction. Our correctors have low computational cost and can be used to decide whether to abstain from making an unsafe classification. We provide ...
Added: May 23, 2026
Zaikin A., Sviridov I., Sosedka A. et al., Technologies 2026 Vol. 14 No. 2 Article 84
High-dimensional tabular data are common in biomedical and clinical research, yet conventional machine learning methods often struggle in such settings due to data scarcity, feature redundancy, and limited generalization. In this study, we systematically evaluate Synolitic Graph Neural Networks (SGNNs), a framework that transforms high-dimensional samples into sample-specific graphs by training ensembles of low-dimensional pairwise ...
Added: May 23, 2026
Kibkalo Vladislav, Chertopolokhov V., Mukhamedov A. et al., IEEE Access 2026 Vol. 14 P. 14369–14392
This study presents on-the-fly identification and multi-step prediction of nonlinear systems with delayed inputs using a dynamic neural network combined with a smooth projection onto ellipsoids. The projection enforces parameter constraints that guarantee stability, while a Lyapunov–Krasovskii analysis yields computable ultimate error bounds. Riccati-type matrix inequalities are derived, providing an efficient vectorization–projection–devectorization implementation suitable for ...
Added: May 22, 2026
Морозов С. В., Calcolo 2026 Vol. 63 No. 2 Article 23
The approximation of tensors in a low-para metric format is a crucial component in many mathematical modelling and data analysis tasks. Among the widely used low-parametric representations, the canonical polyadic (CP) decomposition is known to be very efficient. Nowadays, most algorithms for CP approximation aim to construct the approximation in the Frobenius norm; however, some ...
Added: May 22, 2026
Селянин Ф. И., Journal of Dynamical and Control Systems 2026 Vol. 32 No. 2 P. 1–16
A B-facet is a lattice -dimensional polytope in the positive octant with a positive normal covector, such that every -dimensional simplex with vertices in it is a B-simplex (i.e., a pyramid of height one with base on a coordinate hyperplane). B-facets were introduced in [2] in the context of the monodromy conjecture. In this paper, we complete the ...
Added: May 21, 2026
Kadieva D., Blagoveshchensky E., Agranovich O. et al., Frontiers in Psychology 2026 Vol. 17 Article 1832623
Embodied and embedded cognition (EEC) theory proposes that language and cognitive development emerge from bodily interactions with the environment, yet empirical tests of this claim in clinical developmental populations remain rare. This mini-review synthesizes behavioral, electrophysiological, and structural neuroimaging evidence from children with serious early motor disorders—obstetric brachial plexus palsy and arthrogryposis multiplex congenita—which restrict ...
Added: May 20, 2026
Ausubel L., Baranov O., Journal of Economic Theory 2026 Vol. 235 No. 106192
The Vickrey-Clarke-Groves (VCG) mechanism is one of the most compelling constructs in mechanism design, but the presence of complementary goods creates the possibility of non-core and even zero-revenue outcomes. In this article, we show that joint feasibility constraints on allocations offer a second pathway to ill-behaved outcomes in the VCG mechanism, even when all bidders ...
Added: May 20, 2026
Кияненко И. К., Клиническая и специальная психология 2026 Т. 15 № 1 С. 7–19
Context and relevance. The problem of the impact of urban stress factors on mental health is becoming increasingly relevant in the context of urbanization. Living in cities is accompanied by increased psychophysiological stress, which leads to an increase in the prevalence of mental disorders among urban residents. Objective. The purpose of the article is to ...
Added: May 19, 2026
Denis Seliutskii, Russian Journal of Mathematical Physics 2025 Vol. 32 No. 2 P. 399–407
In this paper, we find an upper bound for the first Steklov eigenvalue for a surface of revolution with boundary consisting of two spheres of different radii. Moreover, we prove that, in some cases, this boundary is sharp. ...
Added: May 19, 2026
Alenina E., Kristina Terenteva, Kosonogov V., Behavioral Sciences 2026 Vol. 16 No. 5 Article 806
Anxiety is a multidimensional construct that influences cognitive performance in complex ways, yet its factor structure and domain-specific effects remain unclear. This study examined (1) the psychometric structure of general and specific anxiety measures, (2) their associations with cognitive performance across different domains, and (3) the predictive power of machine learning models in classifying cognitive ...
Added: May 18, 2026
Жакупов О. Б., European Journal of Mathematics 2025 Vol. 11 Article 84
We provide examples of smooth three-dimensional Fano complete intersections of degree 2, 4, 6, and 8 that have absolute coregularity 0. Considering the main theorem of Avilov, Loginov, and Przyjalkowski (CNTP 18:506–577, 2024) on the remaining 101 families of smooth Fano threefolds, our result implies that each family of smooth Fano threefolds has an element of absolute ...
Added: May 18, 2026
Андреева О. С., Росмэн-Пресс, 2026.
«Деньги. Энциклопедия российского школьника» кратко и емко расскажет:
· Чем в древности платили за товары
· Как выглядели первые деньги, из чего их делали и где хранили
· Как найти клад и можно ли выиграть в лотерею
· Как работает банк
· Как дети и подростки могут зарабатывать и распоряжаться личным бюджетом
· И еще сотни интересных научно-обоснованных фактов
Книга поможет мальчикам ...
Added: May 18, 2026
Андреева О. С., Просвещение, 2024.
В книге собраны рекомендации и практические советы приёмным родителям, с помощью которых можно сформировать у детей правильное отношение к денежным средствам, рассказывается, какими словами объяснять понятные взрослым истины относительно личных и семейных финансов ребёнку любого возраста. Одной из задач книги стала необходимость объяснения этого феномена — потребительского отношения приёмных детей к труду замещающих родителей, к ...
Added: May 18, 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
Ananin D., Сувирова А. Ю., Высшее образование в России 2024 Т. 33 № 5 С. 112–135
Immersive technologies (ImT) are becoming more and more widespread in the R&D sector and more often in the academic agenda of higher education. The paper provides a systematic overview of the educational practices of Russian universities in the use of ImT in teaching. The study focuses on the institutional and didactic aspects of the ImT ...
Added: November 18, 2025
Polikanova I., Ксензов М. Ю., Меликов Р. Т., Вестник Московского университета. Серия 14: Психология 2025 Т. 48 № 4 С. 158–197
Актуальность. В научной литературе, посвященной функциональной реорганизации восприятия пространства у ампутантов, основное внимание сосредоточено на ампутантах верхних конечностей, в то время как последствия ампутаций нижних конечностей недостаточно изучены. Однако особенности перестройки восприятия пространства при ампутации верхних и нижних конечностей различаются, что подчеркивает необходимость дополнительных исследований для лучшего понимания происходящих изменений и разработки методов их компенсации. Цель. Цель работы — выявить особенности ...
Added: October 31, 2025
Реан А. А., Шевченко А. О., Ставцев А. А., Педагогика 2022 Т. 86 № 10 С. 17–27
Based on the data obtained by Russian and foreign psychologists, the effectiveness of ap- plying digital gamification to learning is analyzed. The aim of implementation is to form an additional motivational component of learning. This paper also examines the use of virtual reality systems as an effective springboard for gamification. This paper analyzes the connection ...
Added: October 2, 2025
Беспалов Б. И., Леонов С. В., Мухамедов А. М. et al., Экспериментальная психология 2025 Т. 18 № 1 С. 200–221
Context and relevance. One of the urgent tasks of sports psychology is to develop virtual diagnostic simulators with the inclusion of a battery of chronometric tests aimed at assessing the perceptual and motor processes of athletes and possessing a high level of reliability and validity. Objective. The purpose of this work was to develop such ...
Added: April 17, 2025
Гасанов А. А., Одинцов М. А., Леонов С. В. et al., Национальный психологический журнал 2025 Т. 20 № 2 С. 130–149
Background. The rapid growth of virtual reality (VR) and motion tracking technologies in recent years has allowed them to find applications in many fields of science, including elite sports. With the advancement of VR technologies, it becomes possible to address an increasing range of tasks for athlete training. Objectives. To develop and test a virtual ...
Added: April 15, 2025
Karpenko I., В кн.: IV конгресс Русского общества истории и философии науки «Наука, технологии и ценности в неустойчивом мире».: Русское общество истории и философии науки, 2024. Гл. 21 С. 75–78.
The idea of Edmund Husserl about regional ontologies is taken as a basis and is used for the interdisciplinary synthesis of several subject areas dealing with the development of problems lying at the junction of these areas. The simulation hypothesis and the related concept of virtual reality and the concept of multiple worlds are analyzed. ...
Added: March 12, 2025