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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.
Nersisyan A., Frontiers in Molecular Biosciences 2026 Vol. 13 Article 1995001
Antiviral activity is commonly summarized using endpoint measures such as EC50 or EC90, yet these quantities emerge from a dynamic biological system and depend on viral replication kinetics, host-cell properties, experimental design, and the assay used to quantify infection. Infectious-virus titers, viral RNA, infected-cell fractions, viability measurements, and immune readouts capture different components of the ...
Added: October 15, 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
Батова О. Н., Савинецкая Л. Е., Проявка С. В. et al., Nature Conservation Research. Заповедная наука 2026 Т. 11 № 4 С. 25–39
Spermophilus suslicus is a threatened species listed in Red Data Books at all levels (from regional Red Data
Books to the IUCN Red List of Threatened Species), and it currently requires special conservation activity.
Over the past 30–50 years, its range has changed from continuous to mosaic, and its population has declined
everywhere. In 2015, in Russia experimental ...
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
Ari G., Liu X., Jiang L. et al., Ecological Indicators 2026 Vol. 191 Article 115592
Snow drought has become a research hotspot due to its widespread impacts on ecosystems and water resources, yet its effects on vegetation phenology remain relatively understudied. Focusing on the Mongolian Plateau, this study used the Snow Water Equivalent Index and the start of growing season (SOS) to assess the associations between snow drought and vegetation ...
Added: October 12, 2026
Temereva E., Zoologischer Anzeiger 2026 Vol. 325 P. 182–195
Brachiopoda is a group of animals, that is still insufficiently studied at the ultrastructural level, despite the significance of ultrastructure of tissues and organs for analysing the functional morphology, reconstructing the organisation and biology of numerous extinct brachiopods, and establishing relationships among major taxa. In the present study, we provide a revised reconstruction of the ...
Added: October 11, 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
Aleskerov F. T., Вайншток А. П., Делахова А. М. et al., Информационные процессы 2026 Т. 26 № 3 С. 895–913
The development and effective management of territorial entities are priority issues for all states, particularly in the context of the digital transformation of public administration. Over the past decade, the integration of information technologies into municipal and regional planning has significantly altered approaches to strategic development, service delivery, and public engagement. This paper describes the ...
Added: October 9, 2026
Сизикова Т. Э., Леонов С. В., Polikanova I., Национальный психологический журнал 2026 Т. 21 № 4 С. 79–89
Background.
The relevance of this study is driven by the rapid increase in anxiety disorders in modern society. According to WHO data from 2021, 359 million people worldwide suffered from anxiety disorders. In psychological practice, there is a growing number of techniques being applied, including those aimed at reducing anxiety, but their effectiveness is not always scientifically proven. Thus, ...
Added: October 6, 2026
Neklyudova A., Smirnov K., Rebreikina A. et al., Genes 2022
Added: October 5, 2026
Neklyudova A., Soghoyan G., Martynova O. et al., Language, Cognition and Neuroscience 2025
Added: October 5, 2026
Soghoyan G., Neklyudova A., Martynova O. et al., Neuroimage 2025
Added: October 5, 2026
Neklyudova A., Rebreikina A., Sysoeva O., International Journal of Psychophysiology 2025
Added: October 5, 2026