Results 11 to 20 of about 7,137 (227)

Dynamic changes of amplitude of low-frequency in systemic lupus erythematosus patients with cognitive impairment

open access: yesFrontiers in Neuroscience, 2022
BackgroundCognitive dysfunction (CI) is frequently reported in patients with systemic lupus erythematosus (SLE), but the identification and assessment of SLE-related CI remain challenging. Previous studies have focused on changes in static brain activity,
Yifan Yang   +7 more
doaj   +1 more source

Abnormal static and dynamic amplitude of low-frequency fluctuations in multiple brain regions of methamphetamine abstainers

open access: yesMathematical Biosciences and Engineering, 2023
<abstract> <p>Methamphetamine (meth) addiction is a significant social and public health problem worldwide. The relapse rate of meth abstainers is significantly high, but the underlying physiological mechanisms are unclear. Therefore, in this study, we performed resting-state functional magnetic resonance imaging (rs-fMRI) analysis to ...
Guixiang Liang   +5 more
openaire   +3 more sources

Response analysis of 3D braided two-stage gear system excited by different frequency signals

open access: yesAdvances in Mechanical Engineering, 2021
The knitting principle of 3D braided gear was studied, and the dynamic model of the two-stage gear system was established. The fourth-order Runge-Kutta method was used to numerically simulate the dynamic characteristics of common gear and 3D braided gear.
Weiliang Zhang   +6 more
doaj   +1 more source

Impact of anesthesia on static and dynamic functional connectivity in mice

open access: yesNeuroImage, 2021
A few studies have compared the static functional connectivity between awake and lightly anesthetized states in rodents by resting-state fMRI. However, impact of light anesthesia on static and dynamic fluctuations in functional connectivity has not been ...
Tomokazu Tsurugizawa, Daisuke Yoshimaru
doaj   +1 more source

Altered Temporal Dynamics of the Amplitude of Low-Frequency Fluctuations in Comitant Exotropia Patients

open access: yesFrontiers in Human Neuroscience, 2022
PurposeGrowing evidence reported that patients with comitant exotropia (CE) were accompanied by static cerebral neural activity changes. However, whether the dynamic time-varying of neural activity changes in patients with CE remains unknown.MethodsA ...
Ri-Bo Chen   +3 more
doaj   +1 more source

Amplitude of low-frequency fluctuation after a single-trigger pain in patients with classical trigeminal neuralgia

open access: yesThe Journal of Headache and Pain, 2022
Objective This study aimed to explore the central mechanism of classical trigeminal neuralgia (CTN) by analyzing the static amplitude of low-frequency fluctuation (sALFF) and dynamic amplitude of low-frequency fluctuation (dALFF) in patients with CTN ...
Xiuhong Ge   +8 more
doaj   +1 more source

Altered Dynamic Functional Connectivity of Cuneus in Schizophrenia Patients: A Resting-State fMRI Study

open access: yesApplied Sciences, 2021
Objective: Schizophrenia (SZ) is a functional mental condition that has a significant impact on patients’ social lives. As a result, accurate diagnosis of SZ has attracted researchers’ interest.
Charles Okanda Nyatega   +4 more
doaj   +1 more source

Tensile Properties Analysis of 3D Flat-Knitted Inlay Fabric Reinforced Composites Using Acoustic Emission

open access: yesAUTEX Research Journal, 2023
In this work, based on the quasi-static tensile test and acoustic emission technology, the tensile properties of two types of three-dimensional flat-knitted inlay fabrics reinforced composites are investigated, and the acoustic emission characteristic ...
Tan Jiangtao   +3 more
doaj   +1 more source

Machine Learning-Based Identification of Suicidal Risk in Patients With Schizophrenia Using Multi-Level Resting-State fMRI Features

open access: yesFrontiers in Neuroscience, 2021
BackgroundSome studies suggest that as much as 40% of all causes of death in a group of patients with schizophrenia can be attributed to suicides and compared with the general population, patients with schizophrenia have an 8.5-fold greater suicide risk (
Bartosz Bohaterewicz   +10 more
doaj   +1 more source

Dynamics and Concordance Abnormalities Among Indices of Intrinsic Brain Activity in Individuals With Subjective Cognitive Decline: A Temporal Dynamics Resting-State Functional Magnetic Resonance Imaging Analysis

open access: yesFrontiers in Aging Neuroscience, 2021
Individuals with subjective cognitive decline (SCD) are more likely to develop into Alzheimer disease (AD) in the future. Resting-state functional magnetic resonance imaging (rs-fMRI) studies have shown alterations of intrinsic brain activity (IBA) in ...
Yiwen Yang   +13 more
doaj   +1 more source

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