Results 31 to 40 of about 2,120,679 (341)
NeuroImage: Clinical, 2021 Background: Cognitive decline has been found to be associated with gray matter atrophy and disruption of functional neural networks in Alzheimer’s disease (AD) in structural and functional imaging (fMRI) studies.
Chimezie O. Amaefule +32 more
doaj +1 more source
Diagnosis of autism spectrum disorder based on functional brain networks and machine learning
Scientific Reports, 2023 Autism is a multifaceted neurodevelopmental condition whose accurate diagnosis may be challenging because the associated symptoms and severity vary considerably.
C. Alves +7 more
semanticscholar +1 more source
Study on coal origin traceability technology based on infrared spectrum
地质科技通报, 2022 With the increasing dependence of China's coal on the outside world, the problem of coal import adulteration and coal filling is becoming increasingly serious, so it is imperative to establish the accurate, fast, convenient, safe, and environmentally ...
Yang Lin, Jing Li, Wenhao Xia
doaj +1 more source
Functional Time Series Forecasting: Functional Singular Spectrum Analysis Approaches
, 2020 In this paper, we propose two nonparametric methods used in the forecasting of functional time-dependent data, namely functional singular spectrum analysis recurrent forecasting and vector forecasting. Both algorithms utilize the results of functional singular spectrum analysis and past observations in order to predict future data points where ...
Trinka, Jordan +2 more
openaire +2 more sources
NeuroImage, 2020 Resting state fMRI (rsfMRI) is frequently used to study brain function, including in clinical populations. Similarity of blood-oxygen-level-dependent (BOLD) fluctuations during rsfMRI between brain regions is thought to reflect intrinsic functional ...
A.C. Linke +10 more
doaj +1 more source
Axially Harmonic Functions and the Harmonic Functional Calculus on the S-spectrum [PDF]
Journal of Geometric Analysis, 2022 The spectral theory on the S-spectrum was introduced to give an appropriate mathematical setting to quaternionic quantum mechanics, but it was soon realized that there were different applications of this theory, for example, to fractional heat diffusion ...
F. Colombo +3 more
semanticscholar +1 more source
Nature Neuroscience, 2023 Autism spectrum disorder (ASD) is a neurodevelopmental disorder characterized by heterogeneous cognitive, behavioral and communication impairments. Disruption of the gut–brain axis (GBA) has been implicated in ASD although with limited reproducibility ...
J. Morton +42 more
semanticscholar +1 more source
A meta-analysis comparing cognitive function across the mood/psychosis diagnostic spectrum [PDF]
Psychological Medicine, 2020 AbstractBackgroundThe nature and degree of cognitive impairments in schizoaffective disorder is not well established. The aim of this meta-analysis was to characterise cognitive functioning in schizoaffective disorder and compare it with cognition in schizophrenia and bipolar disorder.
Amy J. Lynham +3 more
openaire +3 more sources
Synthesis, spectroscopic characterization, X-ray structure, and DFT calculations of some new 1,4-dihydro-2,6-dimethyl-3,5-pyridinedicarboxamides. [PDF]
PLoS ONE, 2014 A series of novel 1,4-dihydro-2,6- dimethyl-3,5-pyridinedicarboxamides were synthesized and characterized by infrared absorption spectrum (IR), proton nuclear magnetic resonance (1H NMR), elemental analysis, ultraviolet spectrum (UV), and fluorescence ...
Yi Li +4 more
doaj +1 more source
PLoS ONE, 2015 Autism spectrum traits exist on a continuum and are more common in males than in females, but the basis for this sex difference is unclear. To this end, the present study draws on the extreme male brain theory, investigating the relationship between sex ...
Minyoung Jung +6 more
doaj +1 more source