Results 41 to 50 of about 3,443,010 (236)

Epileptogenic focus detection in intracranial EEG based on delay permutation entropy [PDF]

open access: yes, 2013
Epileptogenic localization is a critical factor for successful epilepsy surgery. Determining the epileptogenic hippocampus with single channel intracranial electroencephalography (iEEG) recording is beneficial to decrease the risk of infection compared ...
Peng Paul Wen   +9 more
core   +1 more source

Applying Improved Multiscale Fuzzy Entropy for Feature Extraction of MI-EEG

open access: yesApplied Sciences, 2017
Electroencephalography (EEG) is considered the output of a brain and it is a bioelectrical signal with multiscale and nonlinear properties. Motor Imagery EEG (MI-EEG) not only has a close correlation with the human imagination and movement intention but ...
Ming-ai Li   +3 more
doaj   +1 more source

Comparative Evaluation of Hemodiafiltration, Hemoperfusion, and Standard Hemodialysis on Efficacy, Inflammatory Control, Dialysis Adequacy, and Safety in End‐Stage Renal Disease: A Prospective Observational Study

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Chronic micro‐inflammation in patients with end‐stage renal disease (ESRD) is a significant driver of cardiovascular complications and diminished quality of life. While standard hemodialysis (SHD) effectively manages small‐molecule clearance, its ability to remove medium‐to‐large uremic toxins—the primary catalysts of systemic ...
Hongwei Zuo   +5 more
wiley   +1 more source

Classifying Epileptic EEG Signals with Delay Permutation Entropy and Multi-scale K-Means

open access: yes, 2014
Most epileptic EEG classification algorithms are supervised and require large training datasets, that hinder their use in real time applications. This chapter proposes an unsupervised Multi-Scale K-means (MSK-means) algorithm to distinguish epileptic EEG
Zhu, Guohun   +7 more
core   +1 more source

Anesthesia Assessment Based on ICA Permutation Entropy Analysis of Two-Channel EEG Signals [PDF]

open access: yes, 2019
Inaccurate assessment may lead to inaccurate levels of dosage given to the patients that may lead to intraoperative awareness that is caused by under dosage during surgery or prolonged recovery in patients that is caused by over dosage after the surgery ...
Sivakumar, Prashanth   +5 more
core   +1 more source

Permutation Entropy: New Ideas and Challenges

open access: yes, 2017
Over recent years, some new variants of Permutation entropy have been introduced and applied to EEG analysis, including a conditional variant and variants using some additional metric information or being based on entropies that are different from the ...
Karsten Keller   +3 more
core   +1 more source

The Optimized Multi-Scale Permutation Entropy and Its Application in Compound Fault Diagnosis of Rotating Machinery

open access: yesEntropy, 2019
Multi-scale permutation entropy (MPE) is a statistic indicator to detect nonlinear dynamic changes in time series, which has merits of high calculation efficiency, good robust ability, and independence from prior knowledge, etc.
Xianzhi Wang   +3 more
doaj   +1 more source

Working Memory Classification Enhancement of EEG Activity in Dementia: A Comparative Study

open access: yesAl-Khawarizmi Engineering Journal, 2023
The purpose of the current investigation is to distinguish between working memory ( ) in five patients with vascular dementia ( ), fifteen post-stroke patients with mild cognitive impairment ( ), and fifteen healthy control individuals ( ) based on ...
Noor Kamal Al-Qazzaz   +2 more
doaj   +1 more source

The human gut microbiome across the life course

open access: yesFEBS Letters, EarlyView.
Despite significant individual variation and continuous change throughout life, the human gut microbiome follows some life stage‐specific trends. This article provides a brief overview of how gut microbiome composition shifts across different phases of life. Created in BioRender. Özkurt, E. (2026) https://BioRender.com/8q4nrnc.
Alise J. Ponsero   +4 more
wiley   +1 more source

On Rényi Permutation Entropy

open access: yes, 2021
Among various modifications of the permutation entropy defined as the Shannon entropy of the ordinal pattern distribution underlying a system, a variant based on Rényi entropies was considered in a few papers.
Karsten Keller, Tim Gutjahr
core   +1 more source

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