Results 71 to 80 of about 27,406 (291)

CSF Monoamine Metabolites and Cognitive Trajectory in Early Parkinson's Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Imaging and postmortem studies indicate that abnormalities in monoaminergic neurotransmission contribute to cognitive impairment in Parkinson's disease (PD). However, it remains uncertain if cerebrospinal fluid (CSF) monoamine metabolites can serve as biomarkers of cognitive decline in early PD.
Jing‐Yu Shao   +7 more
wiley   +1 more source

Calculation Method for the Relaxation Time Spectra of Viscoelastic Fluids Using Dynamic Moduli

open access: yesJournal of Applied Science and Engineering
The influence of different error functions (standard deviation, normalized standard deviation, and chi-square) as objective functions in the calculation of the relaxation time spectrum is studied, as well as the influence of different minimization ...
Luis Hamel, Sergio D. Rosales-Anzola
doaj   +1 more source

A Design Program For The Linear Equalizer That Minimizes The Mean Square Error

open access: yesJurnal Teknologi, 1985
A design program with detailed illustrative example, for the linear equalizer that minimizes the mean square error due to intersymbol interference in its output signal, is presented. The results are evaluated for many types of distortion channels which have been selected from a wide range of common signal distortions.This includes the various ...
openaire   +1 more source

White Matter Hyperintensity Burden and Short‐Interval Change Associated With Sleep Apnoea in the UK Biobank

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background and Purpose White matter hyperintensities (WMH) are a core neuroimaging marker of cerebral small vessel disease (CSVD). Sleep apnoea (SA) is a recognized vascular risk factor, but its associations with regional WMH burden, short‐interval WMH change and cognitive performance in population‐based cohorts remain incompletely defined. We
Peng Cheng   +4 more
wiley   +1 more source

Iterative methods in electromagnetic scattering based on the minimization of the root mean square error [PDF]

open access: yes, 1989
Thesis (M. Eng.) -- University of Stellenbosch, 1989.ENGLISH ABSTRACT: Iterative schemes based on the minimization of the error in scattering problems are presented. In particular, scattering by impenetrable objects is considered.
Steyn, Pierre
core   +1 more source

Influenza Vaccination Responses in Disabled Stroke Patients: A Single‐Center Prospective Observational Study

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective This study aimed to investigate the immunological response to influenza vaccination, the incidence and severity of influenza infection, and the side effects of the vaccination in patients with ischemic stroke. Methods This prospective observational study was conducted between 2023 and 2024 at Ramathibodi Hospital.
Achiraya Pakngao   +5 more
wiley   +1 more source

Mean square error of direction finding of sources of super-broadband signals at spatial filtering of hindrances

open access: yesФизика волновых процессов и радиотехнические системы, 2014
With use of estimates of maximum likelihood of time of arrival and the characteristics of transfer reception of non-harmonic wave processes the mean square error of determination of angular coordinates of super-broadband sources of a radio emission in ...
S.N. Razin’kov
doaj  

Green Beamforming Design for Integrated Sensing and Communication Systems: A Practical Approach Using Beam-Matching Error Metrics [PDF]

open access: yes, 2023
In this paper, we propose a green beamforming design for the integrated sensing and communication (ISAC) system, using beam-matching error to assess radar performance.
Xu, Ke   +3 more
core   +1 more source

Memory and Resting‐State Connectivity in Acute Transient Global Amnesia: A Case–Control fMRI Study

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background and Objectives Transient global amnesia (TGA) is a striking model of isolated amnesia. While hippocampal lesions are well described, the network‐level mechanisms and the precise neuropsychological profile remain debated. Our objective was thus to characterize functional and neuropsychological correlates of acute TGA and their ...
Elias El Otmani   +10 more
wiley   +1 more source

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