Mathematical Methods in the Applied Sciences, Volume 49, Issue 3, Page 2093-2097, February 2026.ABSTRACT These last decades piecewise differential systems have been studied intensively, mainly due to their applications. Inside the study of the dynamics of these differential systems, the limit cycles, that is, the isolated periodic orbits inside the set of all periodic orbits of the system, play a main role.
N. Chachapoyas +3 more
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Hilbert-Huang Transform Embedded Self-Attention Neural Network for EEG-based major depressive disorder vs. healthy controls classification. [PDF]
Front PsychiatryChen J, Tian K, Ye Y, Liu J.
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Muscle &Nerve, Volume 73, Issue 2, Page 319-328, February 2026.ABSTRACT Introduction/Aims Artificial intelligence (AI) has shown potential in analyzing electromyography (EMG) signals, but clinical applicability remains limited by studies based on small, curated datasets, and variable accuracy. This study evaluated AI performance in classifying needle electromyography (EMG) signals as muscle activity versus ...
Mohamed Taha +4 more
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Multi-Method Integration for Spectral Band Importance Analysis in Coal Characterization. [PDF]
Sensors (Basel)Zhang J, Zhao T, Dou Y, Liu Z, Zhou Y.
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Seeger: Semiconductor Physics/Le Comber: Electronic and Structural Properties of Amorphous Semiconductors/Krupicka: Physik der Ferrite und der verwandten magnetischen Oxide/Fedoseev: Advances in Aerosol Physics, Bd. 4 u. 5/Kuttruff: Room Acoustics/Rüdenberg: Hermann Minkowski: Briefe an David Hilbert/Friedrichs: Spectral Theory of Operators in Hilbert Space/Stetter: Analysis of Discretization Methods for Ordinary Differential Equations [PDF]
, 1974 F. Sauter +5 more
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Long‐Term Visual Gist Abstraction Independent of Post‐Encoding Sleep
Journal of Sleep Research, Volume 35, Issue 1, February 2026.ABSTRACT Current theories of memory processing postulate a slow transformation from episodic to abstract, gist‐like memories. We previously demonstrated that sleep shortly after learning improves gist abstraction in healthy volunteers across a one‐year retention interval using a visual version of the Deese‐Roediger‐McDermott (DRM) paradigm.
Nicolas D. Lutz +7 more
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Numerical analysis, spectral graph theory, orthogonal polynomials and quantum algorithms. [PDF]
Philos Trans A Math Phys Eng SciMinenkova A, Mograby G, Zhan H.
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Low Frequency Oscillation Observed in the Ionosphere Around the Substorm Onsets
Geophysical Research Letters, Volume 53, Issue 2, 28 January 2026.Abstract Three substorm events in which Defense Meteorological Satellite Program (DMSP) spacecraft are geomagnetically co‐located with substorm onset locations in IMAGE far ultraviolet auroral images are analyzed. A Hilbert‐Huang Transform is used to decompose the DMSP B⊥ ${B}_{\perp }$ in the ionosphere to its intrinsic mode functions. A dominant mode
Simon Wing +4 more
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