Results 1 to 10 of about 363,103 (166)

A New Detecting Method for Underwater Acoustic Weak Signal Based on Differential Double Coupling Oscillator

open access: yesIEEE Access, 2021
For weak signal detection with known frequency, based on the double coupling Duffing oscillator method, a differential double coupling Duffing oscillator and Van der Pol-Duffing oscillator detection method is proposed.
Guohui Li, Jiuyang Cui, Hong Yang
doaj   +3 more sources

Reduced dynamical variability in depression: evidence from EEG and QIF-E network simulation [PDF]

open access: yesFrontiers in Computational Neuroscience
Alterations in neural signal complexity have been consistently reported in Major Depressive Disorder (MDD), suggesting changes in the underlying dynamics of brain activity.
Gabriel Moreno Cunha   +14 more
doaj   +2 more sources

EEG-fMRI Signal Coupling Is Modulated in Subjects With Mild Cognitive Impairment and Amyloid Deposition

open access: yesFrontiers in Aging Neuroscience, 2021
Cognitive impairment indicates disturbed brain physiology which can be due to various mechanisms including Alzheimer's pathology. Combined functional magnetic resonance imaging (fMRI) and electroencephalography (EEG) recordings (EEG-fMRI) can assess the ...
Lars Michels   +15 more
doaj   +1 more source

Constraining coupled quintessence with the 21 cm signal [PDF]

open access: yesJournal of Cosmology and Astroparticle Physics, 2020
The 21cm line probes the evolution of matter perturbations over a wide range of redshifts, from the dark ages down to the completion of reionization. Observing the 21cm cosmological signal will extend our understanding of the evolution of the Universe and it is thus important to investigate the predictions of different cosmological models.
Liu, Xue-Wen   +2 more
openaire   +2 more sources

Weak Quasiperiodic Signal Propagation through Multilayer Feed-Forward Hodgkin–Huxley Neuronal Network

open access: yesComplexity, 2020
Quasiperiodic signal is ubiquitous and entrenched in neuronal networks, and thus taking it into consideration is necessary. The Wiener process with the intensity of σ is used here to model randomly fluctuated phase in external weak quasiperiodic signal ...
Yuangen Yao   +3 more
doaj   +1 more source

Coupling cellular metabolism to neuronal signalling [PDF]

open access: yesThe Journal of Physiology, 2015
Although it has long been appreciated that much of the brain's energy is devoted to neuronal signalling, it is unclear if and how these two processes are coupled. To explore this emerging area of neuroscience, The Journal of Physiology sponsored a symposium at The Physiological Society's annual meeting, Physiology 2014, in London to bring together five
Derek, Bowie, David, Attwell
openaire   +2 more sources

Coupling dynamics of 2D Notch-Delta signalling

open access: yesMathematical Biosciences, 2022
Understanding pattern formation driven by cell-cell interactions has been a significant theme in cellular biology for many years. In particular, due to their implications within many biological contexts, lateral-inhibition mechanisms present in the Notch-Delta signalling pathway led to an extensive discussion between biologists and mathematicians ...
Francisco Berkemeier, Karen Page
openaire   +4 more sources

Digital array radar channel error analysis

open access: yesThe Journal of Engineering, 2019
The amplitude-phase error caused by the channel inconsistency in the actual digital array radar and the mutual coupling error caused by the mutual coupling effect have a great influence on the performance of the array.
Bowen Gong   +5 more
doaj   +1 more source

Upper Limb Cortical-Muscular Coupling Analysis Based on Time-Delayed Back Maximum Information Coefficient Model

open access: yesIEEE Transactions on Neural Systems and Rehabilitation Engineering, 2023
In musculoskeletal systems, describing accurately the coupling direction and intensity between physiological electrical signals is crucial. The maximum information coefficient (MIC) can effectively quantify the coupling strength, especially for short ...
Qingshan She   +5 more
doaj   +1 more source

The BOLD signal and neurovascular coupling in autism

open access: yesDevelopmental Cognitive Neuroscience, 2013
BOLD (blood oxygen level dependent) fMRI (functional magnetic resonance imaging) is commonly used to study differences in neuronal activity between human populations. As the BOLD response is an indirect measure of neuronal activity, meaningful interpretation of differences in BOLD responses between groups relies upon a stable relationship existing ...
Reynell, C, Harris, JJ
openaire   +3 more sources

Home - About - Disclaimer - Privacy