Results 31 to 40 of about 165,150,859 (278)

Inversion of Sound Speed Field in Photoacoustic Imaging Based on Root Mean Square Propagation Algorithm

open access: yesApplied Sciences
The inaccuracy of inhomogeneous sound speed fields in photoacoustic imaging (PAI) can lead to the blurring and distortion of photoacoustic images. To solve this problem, conventional methods build speed models by using some a priori information or ...
Shuoyu Chen   +4 more
doaj   +1 more source

Neurological, Neurodevelopmental and Treatment Outcomes in Patients With Pyruvate Dehydrogenase Complex Deficiency

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective The aim of this study was to characterize intellectual and motor function, neurological features including epilepsy, treatment response, and adaptive behavior in patients with pyruvate dehydrogenase complex deficiency (PDCD) in Sweden.
Antri Savvidou   +6 more
wiley   +1 more source

Sound speed optimization based on fuzzy sets using image texture as quality factors

open access: yesBIO Web of Conferences, 2017
A constant sound speed of 1540 m/s is usually used by ultrasound imaging systems for calculating delay curves in beamforming. A mismatch of this constant system sound speed and the real one in human tissue could result in significant defocusing and ...
He Xingwu
doaj   +1 more source

Development of an Active Sound Generation System for Sound Quality in EVs at Constant Speed Combined with Subjective Evaluation

open access: yesApplied Sciences, 2022
In order to improve the comfort and dynamic sense of the interior sound of PEVs when driving at a constant speed, this paper carried out research on the evaluation method of the interior sound quality of EVs and the development of an active sound ...
Shuai Zhang   +3 more
doaj   +1 more source

Associated Students of the University of Puget Sound Senate Minutes 1991-1992 [PDF]

open access: yes, 1991
Meeting minutes of the Associated Students of the University of Puget Sound from 09/1991 - 04/1992.
Associated Students of the University of Puget Sound,
core  

Cerebrospinal Fluid Over Plasma Links Analytes to Cognitive Decline in Older Adults at Risk for Alzheimer's Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To identify inflammatory analytes in cerebrospinal fluid (CSF) and plasma associated with cognitive decline in cognitively normal (CN) older adults at risk for Alzheimer's disease (AD). Methods In a longitudinal study of 118 CN older adults (65–80 years, 54% APOE ε4, 26% preclinical AD), 1331 CSF and 1501 plasma analytes were ...
Jagan A. Pillai   +13 more
wiley   +1 more source

Associated Students of the University of Puget Sound (ASUPS) Senate Minutes 2020-2021 [PDF]

open access: yes, 2020
Meeting minutes of the Associated Students of the University of Puget Sound from 09/2020 - 05/2021.
Associated Students of the University of Puget Sound (ASUPS)
core  

Associations Between Biomarkers of Alzheimer's Disease and Sleep in Cognitively Unimpaired Older Adults

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Sleep disturbances have been implicated as a risk factor for developing Alzheimer's disease (AD), but evidence linking plasma AD biomarkers to sleep in cognitively unimpaired individuals remains limited. The present study examined associations between evening, morning, and overnight changes in plasma AD biomarkers and measures of ...
Cornelia Sauter   +5 more
wiley   +1 more source

Influence of treatment with alendronate on the speed of sound, an ultrasound parameter, of the calcaneus in postmenopausal Japanese women with osteoporosis: a clinical practice-based observational study

open access: yesTherapeutics and Clinical Risk Management, 2012
Jun Iwamoto,1 Tetsuya Takada,2 Yoshihiro Sato,3 Hideo Matsumoto11Institute for Integrated Sports Medicine, Keio University School of Medicine, Tokyo, 2Department of Internal Medicine, Hiyoshi Medical Clinic, Kanagawa, 3Department of Neurology, Mitate ...
Iwamoto J, Takada T, Sato Y, Matsumoto H
doaj  

Seasonal variation of underwater sound propagation in the Beibu Gulf

open access: yesFrontiers in Marine Science
Variations in the underwater sound speed significantly influence sound propagation in the ocean, thereby impacting both underwater navigation systems and a substantial portion of marine organisms reliant on sound. This study utilizes cruise data from the
Feihong Zeng   +12 more
doaj   +1 more source

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