Results 31 to 40 of about 15,531 (235)

Changes in dynamic and static brain fluctuation distinguish minimal hepatic encephalopathy and cirrhosis patients and predict the severity of liver damage

Frontiers in Neuroscience, 2023
PurposeMinimal hepatic encephalopathy (MHE) is characterized by mild neuropsychological and neurophysiological alterations that are not detectable by routine clinical examination.
Jiang Ji, Jiang Ji, Yi-yang Liu, Guo-Wei Wu, Yan-Long Hu, Chang-Hua Liang, Xiao-dong Wang   +6 more
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Aberrant spontaneous static and dynamic amplitude of low‐frequency fluctuations in cerebral small vessel disease with or without mild cognitive impairment

Brain and Behavior, 2023
Background Cerebral small vessel disease (CSVD) is considered an age‐related degenerative neurological disorder and the most common risk factor for vascular cognitive impairment (VCI).
Xulian Zhang, Zhigang Wang, Darui Zheng, Xuan Cao, Wenzhang Qi, Qianqian Yuan, Da Zhang, Xuhong Liang, Yiming Ruan, Shaojun Zhang, Weijie Tang, Qingling Huang, Chen Xue   +12 more
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Potential dynamic regional brain biomarkers for early discrimination of autism and language development delay in toddlers

Frontiers in Neuroscience, 2023
BackgroundThe early diagnosis of autism in children is particularly important. However, there is no obvious objective indices for the diagnosis of autism spectrum disorder (ASD), especially in toddlers aged 1–3 years with language development delay (LDD).
Shengjuan Wu, Zhi Wen, Wenzhong Yang, Chengcheng Jiang, Yurong Zhou, Zhiwei Zhao, Aiqin Zhou, Xinglian Liu, Xiaoyan Wang, Yue Wang, Hong Wang, Fuchun Lin   +11 more
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Abnormal static and dynamic amplitude of low-frequency fluctuations in multiple brain regions of methamphetamine abstainers

Mathematical 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, Xiang Li, Hang Yuan, Min Sun, Sijun Qin, Benzheng Wei   +5 more
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Numerical Analysis of Aeroacoustic Characteristics around a Cylinder under Constant Amplitude Oscillation

Energies, 2022
The present study numerically investigated a cylinder under oscillating motions at a low Reynolds number. The effects of two oscillation frequencies and amplitudes on the lift drag coefficient, near-field surface pressure fluctuation, and far-field noise
Peixun Yu, Jiakuan Xu, Heye Xiao, Junqiang Bai   +3 more
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Dynamic local metrics changes in patients with toothache: A resting-state functional magnetic resonance imaging study

Frontiers in Neurology, 2022
ObjectiveTo study the dynamic changes of local metrics in patients with toothache (TA, Toothache) in the resting state, in order to further understand the changes of central neural mechanism in patients with dental pain and its effect on cognition and ...
Mengting Wang, Xin Tang, Bin Li, Tianyi Wan, Xuechao Zhu, Yuping Zhu, Xunfu Lai, Yulin He, Guojin Xia   +8 more
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Abnormal Static and Dynamic Local-Neural Activity in COPD and Its Relationship With Pulmonary Function and Cognitive Impairments

Frontiers in Human Neuroscience, 2021
Patients with chronic obstructive pulmonary disease (COPD) are characterized by attenuated pulmonary function and are frequently reported with cognitive impairments, especially memory impairments.
Zhi Lv, Zhi Lv, Qingqing Chen, Yinling Jiang, Panpan Hu, Lei Zhang, Tongjian Bai, Kai Wang, Yongsheng Wang, Xiaoyun Fan   +9 more
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The Cavitation-Induced Pressure Fluctuations in a Mixed-Flow Pump under Impeller Inflow Distortion

Machines, 2021
To reduce cavitation-induced pressure fluctuations in a mixed-flow pump under impeller inflow distortion, the dynamic pressure signal at different monitoring points of a mixed-flow pump with a dustpan-shaped inlet conduit under normal and critical ...
Huiyan Zhang, Fan Meng, Yunhao Zheng, Yanjun Li   +3 more
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Modeling and Analysis of Amplitude-Frequency Characteristics of Torsional Vibration for Automotive Powertrain

Shock and Vibration, 2020
In the present paper, the amplitude-frequency characteristics of torsional vibration are discussed theoretically and experimentally for automotive powertrain.
Jinli Xu, Jiwei Zhu, Feifan Xia
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Low phase variation digital controlled attenuator with amplitude calibration function

Dianzi Jishu Yingyong, 2023
This paper presents a high accuracy and low phase variation 5-bit digital controlled attenuator (DCA) for Ka-band phased-array system applications.
Li Xiang
doaj   +1 more source