Results 271 to 280 of about 777,747 (311)
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Performance function for equally-spaced digital spectrum analysis
IEEE Transactions on Instrumentation and Measurement, 2001A different procedure for evaluating the errors introduced by the equally-spaced sampling technique in the asynchronous spectral analysis of a periodic signal was introduced. It is based on the assumption that the initial sampling instant can be randomized so that each estimated spectral component can be considered a random variable characterized by ...
Domenico Mirri +3 more
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Functional brain connectivity as revealed by singular spectrum analysis
2012 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2012Correlation based measures have widely been used to characterize brain connectivity. In this paper, a new approach based on singular spectrum analysis is proposed to characterize brain connectivity. It is obtained by deriving the common basis vector of two or more trajectory matrices associated with functional brain responses.
Abd-Krim Seghouane, Adnan Shah
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Spatial and temporal spectra of periodic functions for spectrum analysis
Applied Optics, 1984Both the spatial and the temporal spectra of reference signals used in interferometric spectrum analyzers affect the system performance. We define a class of bandlimited reference signals that have N discrete frequency components of equal magnitude. We show that the system performance is primarily determined by the aperture weighting function and is ...
A, VanderLugt, A M, Bardos
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Motor Functioning in Autistic Spectrum Disorders: A Preliminary Analysis
The Journal of Neuropsychiatry and Clinical Neurosciences, 2012The study sought to identify differences in motor functioning between autism and Asperger syndrome while also assessing the diagnostic contribution of such assessment. A sample of 16 individuals with autism and 10 with Asperger syndrome completed the Dean-Woodcock Sensory-Motor Battery, and outcomes were compared.
Aniruddh, Behere +3 more
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Executive Function in High-Functioning Autism Spectrum Disorder: A Meta-analysis of fMRI Studies
Journal of Autism and Developmental Disorders, 2020Abnormalities in executive function (EF) are clinical markers for autism spectrum disorder (ASD). However, the neural mechanisms underlying abnormal EF in ASD remain unclear. This meta-analysis investigated the construct, abnormalities, and age-related changes of EF in ASD. Thirty-three fMRI studies of inhibition, updating, and switching in individuals
Zheng, Zhang, Peng, Peng, Delong, Zhang
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Comparative Analysis of the Effect of Renal Function on the Spectrum of Coronary Artery Disease
The American Journal of Medicine, 2020We aim to assess the differential effect of renal impairment across the spectrum of patients with ischaemic heart disease and to study if any established risk factors may modify this risk.A total of 2013 patients who underwent revascularization for ST-segment elevation myocardial infarction or invasive physiology assessment were included.
Mohammad Alkhalil +7 more
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Spectrum Analysis of Mesons using Nikiforov-Uvarov Functional Analysis Method
Materials Research Proceedings, 2022Abstract. The analytical expressions for the energy eigenvalues and eigenfunctions are computed for Coulomb perturbed potential by solving the Schrodinger equation within the framework of the Nikiforov-Uvarov functional analysis method and applying the Greene-Aldrich approximation.
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Developmental Neurorehabilitation, 2023
Elopement is one of the most common forms of problem behavior for individuals with autism spectrum disorder (ASD) and is associated with the greatest probability of a lethal outcome. This study evaluated the effects of a function-based treatment package on elopement for two teenage boys with ASD who eloped frequently from caregivers.
Benjamin R. Thomas +3 more
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Elopement is one of the most common forms of problem behavior for individuals with autism spectrum disorder (ASD) and is associated with the greatest probability of a lethal outcome. This study evaluated the effects of a function-based treatment package on elopement for two teenage boys with ASD who eloped frequently from caregivers.
Benjamin R. Thomas +3 more
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Narratives of children with high-functioning autism spectrum disorder: A meta-analysis
Research in Developmental Disabilities, 2016The aim of this meta-analysis was to analyze the narrative performance of children and adolescents with high-functioning Autism Spectrum Disorders (ASD) in terms of microstructure, macrostructure and internal state language.A systematic literature search yielded 24 studies that met the predetermined inclusion criteria.
Baixauli Fortea, Inmaculada +3 more
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A Multi-Factorial Assessment of Functional Human Autistic Spectrum Brain Network Analysis
2021 IEEE International Conference on Bioinformatics and Biomedicine (BIBM), 2021The variability of the results obtained by the statistical analysis of functional human brain networks depend on multiple factors such as: the source of the fMRI data, the brain parcellations, the graph theory measures, and the threshold values applied to the functional connectivity matrices to obtain adjacency matrices of sparse graphs. Therefore, the
Oswaldo Artiles, Fahad Saeed
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