Results 51 to 60 of about 3,275,520 (334)
, 2017 Article history: Received 8 February 2017 Received in revised form 2 August 2017 Accepted 4 August 2017 The main objective of this study is to evaluate the mass attenuation coefficients of nine 3D printing materials and to verify the best 3D printing ...
et al. Alssabbagh
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Ultrasonic attenuation of an agar, silicon dioxide, and evaporated milk gel phantom
Journal of Medical Ultrasound, 2021 Background: It has been demonstrated that agar-based gel phantoms can emulate the acoustic parameters of real tissues and are the most commonly used tissue-mimicking materials for high-intensity focused ultrasound applications.
Theocharis Drakos +7 more
doaj +1 more source
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Introduction Neuronal pentraxin 2 (NPTX2) is a synaptic protein involved in synaptic plasticity and regulation of neuronal excitability. Lower baseline cerebrospinal fluid (CSF) NPTX2 levels have been shown to be associated with an earlier onset of mild cognitive impairment (MCI), a pre‐dementia syndrome, even after CSF Alzheimer's Disease (AD)
Juan P. Vazquez +12 more
wiley +1 more source
Italian National Conference on Sensors, 2016 A critical parameter to assess the environmental status of water bodies is the transparency of the water, as it is strongly affected by different water quality related components (such as the presence of phytoplankton, organic matter and sediment ...
R. Bardaji +4 more
semanticscholar +1 more source
Use of Quantitative Ultrasound to Measure Acoustic Properties of Human Skin
Archives of Acoustics, 2014 The scattering of ultrasonic waves depends on the size, shape, acoustical properties and concentration of scatterers in the tissue. The spectrum of the ultrasonic backscatter can be used to characterize non-invasively the structural and ...
Hanna PIOTRZKOWSKA +4 more
doaj
Decreased Serum 5‐HT: Clinical Correlates and Regulatory Role in NMJ of MG
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Although 5‐Hydroxytryptamine (5‐HT) indirectly stimulates muscle contraction and participates in regulating Acetylcholine receptor (AChR) cluster homeostasis in cellular, animal, and clinical studies, evidence regarding its potential to modulate muscle contraction in myasthenia gravis (MG) remains limited.
Xinru Shen +18 more
wiley +1 more source
Representative Elementary Length to Measure Soil Mass Attenuation Coefficient
The Scientific World Journal, 2014 With increasing demand for better yield in agricultural areas, soil physical property representative measurements are more and more essential. Nuclear techniques such as computerized tomography (CT) and gamma-ray attenuation (GAT) have been widely ...
J. A. R. Borges +2 more
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Attenuation coefficient for surface acoustic waves in fluid region
Vietnam Journal of Mechanics, 2012 In recent years, surface acoustic wave devices used in bio-sensing applications have demonstrated high sensitivity in the detection of fluid properties such as density, viscosity, stream velocity.
Bui Thu Hang +3 more
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Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Background Apolipoprotein ε4 (APOE ε4) is a potent genetic risk factor for Alzheimer's disease (AD). However, its role in cerebral small vessel disease (CSVD) remains unclear. Given the clinical and pathological similarities between CSVD and AD, this study aimed to investigate the associations of APOE ε4 gene dosage with cognitive function and
Tingru Jin +6 more
wiley +1 more source
Calculation and Research of γ-ray Air Attenuation Coefficient at Different Altitudes
Journal of Isotopes, 2021 In the process of aviation gamma dose rate measurement, due to the large altitude span, the gamma-ray air attenuation coefficient will be affected by altitude, temperature, air pressure and air density, so corresponding corrections are needed.
WEI Kaidi;XU Yang;GAO Fei;LIU Chuanfeng;HANG Zhongbin;WANG Zilin
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