?
Connectivity measures applied to human brain electrophysiological data
Journal of Neuroscience Methods. 2012. Vol. 207. No. 1. P. 1–16.
Connectivity measures are (typically bivariate) statistical measures that may be used to estimate interactions between brain regions from electrophysiological data. We review both formal and informal descriptions of a range of such measures, suitable for the analysis of human brain electrophysiological data, principally electro- and magnetoencephalography. Methods are described in the space–time,space–frequency, and space–time–frequency domains. Signal processing and information theoretic measures are considered, and linear and nonlinear methods are distinguished. A novel set of crosstime–frequency measures is introduced, including a cross-time–frequency phase synchronization measure.
Shartova N., Mironova E., Geo Journal 2026 Vol. 91 P. 1–17
The historical timeline of urban development profoundly shapes the contemporary form and functionality of cities. Traditionally, cities were planned with limited consideration for the promotion of a healthy urban environment. Using Nizhny Novgorod, Russia, a city that has evolved from a medieval market town to an industrial centre and later into a multifunctional city with ...
Added: August 9, 2026
Tsydypova M., Современные проблемы дистанционного зондирования Земли из космоса 2026 Т. 23 № 3 С. 263–275
The article presents a methodology for mapping coniferous forest decline, based on the integration of automated remote sensing data interpretation techniques, vegetation indices, remote sensing data on above-ground biomass (Biomass CCI (Climate Change Initiative)), and materials from ground-based forest pathology surveys using forests of the Khamar-Daban ridge (Republic of Buryatia) as a case study. The ...
Added: August 9, 2026
Sandlerskiy R., Elsevier USA, 2026.
Encyclopedia of Ecology, Third Edition, Four Volume Set - with over 300 chapters - once again provides a comprehensive reference work covering the current ideas and practices in ecology.
Ecology is the ideal field for studying complex, adaptive, and self-organizing systems and by observing and understanding ecosystems, it provides valuable insights into creating sustainable systems. This knowledge is ...
Added: August 9, 2026
Kulev Y., Maksaev A., Promyslov V., Linear Algebra and its Applications 2026 Vol. 730 P. 51–72
The notion of λ-th upper scrambling index was introduced by Huang and Liu in 2010, as a generalization of a notion considered by Akelbek and Kirkland in 2009. For a primitive digraph D, it is defined as the smallest positive integer k such that for every λ vertices of D there exist directed paths of lengths k from these vertices to a common vertex. This ...
Added: August 7, 2026
Kanunnikov A., Promyslov V., Vassilieva E., Electronic Journal of Combinatorics 2024 Vol. 31 No. 3 Article P3.6
Introduced by Goulden and Jackson in their 1996 paper, the matchings-Jack conjecture and the hypermap-Jack conjecture (also known as the b-conjecture) are two major open questions relating Jack symmetric functions, the representation theory of the symmetric groups and combinatorial maps. They show that the coefficients in the power sum expansion of some Cauchy sum for ...
Added: August 7, 2026
Dadinova L., Petoukhov M., Mozhaev A. et al., Crystallography Reports 2026 Vol. 71 P. 52–58
Bacterial chromosomes are tightly packed in the cells due to interactions with specific nucleoid-associated proteins. Among them, the IHF protein draws attention due to its presumed influence on intracellular crystallization processes, leading to bacterial resistance to drugs. The crystal structure of the IHF heterodimer is known only in complex with a short DNA fragment, whereas ...
Added: August 6, 2026
Vasilieva E., Bultseva M. A., Trifonova A., Current Psychology 2026 Vol. 45 Article 1320
The current exploratory study aims to reveal identity gaps and interpersonal communication strategies used by Russians to overcome social identity crises. Based on previous research, we assume that many Russians who live both in Russia and abroad face ethnic and national identity threats and experience different social identity crises due to recent geopolitical events. This ...
Added: August 6, 2026
Ulgen H., Journal of International Students 2026 Vol. 16 No. 17 P. 283–312
This study reports a secondary analysis of phenomenologically informed, semistructured interviews with 15 Turkish undergraduate and graduate students at three universities in Moscow and examines how peer networks function beyond emotional buffering to support academic engagement and institutional navigation in Russian–medium higher education. Drawing on social support theory, communities of practice, and community cultural wealth ...
Added: August 5, 2026
Radygina A., Kulikova S., Herald of the Russian Academy of Sciences 2025 Vol. 95 No. 6 P. 963–970
Musical training has a significant impact on brain organization, leading to functional and structural
adaptations that enhance auditory, visual, motor, and cognitive processes. This study investigates how
extensive musical training shapes functional brain connectivity by comparing professional musicians and
non-musicians. Using EEG phase-locking value (PLV) analysis, we examined neural synchronization across
alpha, beta, and gamma frequency ranges during music ...
Added: August 5, 2026
Zolotareva A., Социальные науки и детство 2026 Т. 7 № 2 С. 66–77
Context and relevance. Early detection of anxiety and depression symptoms is a priority task for the child and adolescent mental health system. As Russian practice traditionally relies on separate instruments, assessing anxiety and depression in isolation, there is a need for integrated instruments. Objective. To examine the factor structure of the Russian version of the ...
Added: August 4, 2026
Spiridonov V. P., Belousov N. M., Sarkissian G. A., Analysis and Mathematical Physics 2026 Vol. 16 Article 96
Hyperbolic hypergeometric integrals are defined as Barnes-type integrals of products of hyperbolic gamma functions. Their reduction to ordinary hypergeometric functions is well known. We study in detail their degeneration to complex hypergeometric functions. Namely, using uniform bounds on the integrands, we prove that the univariate hyperbolic beta integral and the conical function degenerate to two-dimensional ...
Added: August 4, 2026
Gayfullin S., Kikteva V., Results in Mathematics 2026 Vol. 81 No. 5 Article 146
In this paper we obtain a criterion of flexibility for an affine complexity-zero horospherical variety. This result generalizes previously known results on flexibility of normal horospherical varieties, horospherical varieties with an action of a semisimple group, and non-normal toric varieties. ...
Added: August 3, 2026
Iskakova B., Kleinlein E. V., Prisyazhniuk D. et al., European Journal of Education 2026 Vol. 61 No. 3 Article e70810
This study examines pre-service teachers' (PSTs) attitudes towards inclusive education in Germany and Russia and investigates how they relate to teacher training curricula and teacher educators' discourse. A mixed-methods design was used, including an online survey of PSTs (n = 460) with an open-ended question, curriculum review and exploratory interviews with university educators in both contexts. The ...
Added: August 3, 2026
Lunts V., Функциональный анализ и его приложения 2026 Т. 60 № 3 С. 127–129
Доказано, что канонические полуортогональные разложения производной категории диаграммной схемы индуцируют аналогичные разложения подкатегории совершенных комплексов. ...
Added: August 3, 2026
Reznichenko S. I., Кияненко И. К., Nartova-Bochaver S. K. et al., Экспериментальная психология 2026 Т. 19 № 2 С. 10–28
Abstract
Context and relevance. In the context of accelerated urbanization and a growing disconnect from the natural
environment, there is increasing interest in biophilic attitudes — a system of stable views, beliefs, and
evaluations that reflect a person’s relationship with living nature and shape their psychological well-being and
environmentally responsible behavior. Existing tools for their measurement, such as the ...
Added: August 3, 2026
Kotenko M., Zaytsev A. I., Pelinovsky E., Pure and Applied Geophysics 2026 Vol. 183 No. 6 P. 2681–2695
On July 29, 2025, a strong earthquake near Kamchatka (Russia) generated a tsunami that spread across the entire
Pacific Ocean. The tsunami had its strongest impact on the coast of the North Kuril Islands (Paramushir and Shumshu), causing significant destruction. During the first days after the earthquake, a field survey of tsunami traces on these islands was conducted in the area ...
Added: August 3, 2026
Belomestny D., Gasnikov A., Gladin E. et al., Russian Mathematical Surveys 2026 Vol. 81 No. 4(490) P. 3–90
Reinforcement learning (RL) is increasingly grounded in tools from probability, optimization, and operator theory. This survey organizes the mathematical structures that underpin the design and analysis of modern algorithms in RL. We begin from Markov decision processes (MDPs) and the Bellman operators, emphasizing contraction mappings, monotonicity, and fixed-point theory that yield convergence guarantees and rates ...
Added: August 3, 2026
A. Radomskii, Mathematical notes 2026 Vol. 119 No. 6 P. 1136–1147
We obtain an upper bound for the sum $\sum_{n\leq N} (a_{n}/\varphi (a_{n}))^{s}$, where $\varphi$ is Euler's totient function, $s\in\mathbb{N}$, and $a_{1},\ldots, a_{N}$ are positive integers (not necessarily distinct) with some restrictions. As applications, for any $t>0$, we obtain an upper bound for the number of $n\in [1,N]$ such that $a_{n}/ \varphi (a_{n})> t$. ...
Added: July 31, 2026
Mikhaylets E. V., Razorenova A. М., Chernyshev V. L. et al., Scientific Reports 2026 Vol. 16 Article 23560
Meditation offers a naturalistic paradigm for studying introspection, yet the neural dynamics of advanced tantric practices remain largely unexplored. Buddhist Highest Yoga Tantra (BHYT) comprises a sequence of eight dissolution stages culminating in the “clear light” state. We recorded EEG during eyes-closed BHYT meditation performed in monasteries and hermitages (51 sessions from 36 male practitioners; ...
Added: July 29, 2026
Chinn L., Momotenko D., Сукманова А. А. et al., Cortex 2023 Vol. 161 P. 93–115
Individuals raised in institutionalized care settings are more likely to demonstrate developmental deficits than those raised in biological families. One domain that is vulnerable to the impoverished environments characteristic of some institutionalized care facilities is language development. We used EEG to assess ERPs and source-localized event-related spectral perturbations (ERSPs) associated with semantic processing at different levels of picture-word conflict and low ...
Added: June 29, 2026
Alenina E., Kristina Terenteva, Kosonogov V., Frontiers in Neuroscience 2026 Vol. 20 Article 1837154
Anxiety, characterized by pervasive feelings of nervousness and worry, may differentially impact cognitive problem-solving across various domains, including spatial and social contexts. This study investigates the relationship between distinct types of anxiety and cognitive performance, aiming to elucidate the underlying neural mechanisms involved. Sixty participants (54 females, Mage = 22.46, SD = 4.50; 6 males, ...
Added: June 19, 2026
Emelianchuk N. N., Leontiev D., В кн.: Смысл жизни и акме: развитие смысловой сферы и специфика жизненного пути личности.: Московский институт психоанализа, 2025. С. 112–118.
The article provides an overview of methodologies aimed at measuring meaning in life, focusing on the Multidimensional Existential Meaning Scale (MEMS) family, and presents the results of the adaptation of the variation developed by V. Kostin and V. Viñoles on a Russian-speaking sample. ...
Added: June 13, 2026
Emelianchuk N. N., Leontiev D., Сибирский психологический журнал 2026 № 99 С. 140–160
Meaning in life has a multidimensional structure and represents one of the key determi-nants of well-being. The aim of the present study was to examine the construct validity of subscales of the Multidimensional Existential Meaning Scale (MEMS). Methods. The ques-tionnaire was translated into Russian and tested on two samples: (1) participants of an interna-tional study ...
Added: June 8, 2026
Kashevnik A., Glekler E., Artemenko E. et al., Scientific data 2026 Vol. 13 Article 850
We present a multimodal dataset containing electroencephalography (EEG), electrocardiography (ECG), and video recordings from 49 participants. Each participant completed a single session lasting approximately 45 minutes. During each session they performed five tasks: resting state, inward concentration (focusing on the center of the forehead), outward concentration (visual search), and mind-wandering. EEG data were recorded from ...
Added: April 23, 2026