Results 111 to 120 of about 73,555 (300)

A flexible organic reflectance oximeter array. [PDF]

, 2018
Transmission-mode pulse oximetry, the optical method for determining oxygen saturation in blood, is limited to only tissues that can be transilluminated, such as the earlobes and the fingers.
Arias, Ana C, Bovo, Gianluca, Han, Donggeon, Khan, Yasser, Lochner, Claire M, Newsome, Chris, Pierre, Adrien, Ting, Jonathan, Wang, Xingchun, Wilson, Richard, Yaacobi-Gross, Nir   +10 more
core   +1 more source

A critical reappraisal of the carotid sinus and carotid bulb: Distinguishing neurohistological function from vascular geometry

The Anatomical Record, EarlyView.
This review redefines the carotid bulb (CB) as a variable geometric dilation shaped by hemodynamics and the carotid sinus (CS) as a conserved neurohistological baroreceptor field. Distinguishing these entities clarifies a century of anatomical confusion and links geometry, neurohistology, and clinical interpretation within a unified framework ...
Răzvan Costin Tudose, Nicolae Radu, Mugurel Constantin Rusu   +2 more
wiley   +1 more source

Analytical Solutions for Unsteady Pipe Flows with Slip Boundary Condition

Journal of Applied Fluid Mechanics, 2020
In this paper analytical expressions for time-dependent velocity profiles and pressure gradient are obtained for fully-developed laminar flows with given volume flow-rate conditions in circular pipe flows with slip boundary conditions.
Anek. V. Pillai, K. V. Manu
doaj  

Optimizing biophysical properties of cellular niches to enhance stem cell‐derived extracellular vesicle function in musculoskeletal regeneration

BMEMat, EarlyView.
Extracellular vesicles (EVs) derived from stem cells show promise for applications in regenerative medicine, but their scalability and yield remain challenges. This review explores the approaches for biophysical modulations within cell niches on EV properties, discusses the current clinical application of EVs, and provides an outlook on the existing ...
Yang Xu, Chung Yin Matthew Cheung, Liling Liu, Hoi Pan Harry Cheung, Kam Yu Tam, Dai Fei Elmer Ker, Sarah H. Cartmell, Chuanbin Mao, Zhiyong Zhang, Dan Michelle Wang   +9 more
wiley   +1 more source

Newtonian and Non-Newtonian Pulsatile Flows through an Artery with Stenosis

The Journal of Engineering Research, 2017
The current study presents three-dimensional modeling and analysis of blood flow through artery stenosis under several variants of pulsatile flow to mimic the atherosclerosis artery disease.
Abdus Samad, A. Husain, M. Zunaid, A. Samad   +3 more
doaj   +1 more source

Radial capacity and hemodynamics evaluation in vitro and implantable feasibility validation in vivo of thinner bioresorbable polymer vascular stents

BMEMat, EarlyView.
A series of in vitro experiments, numerical simulations and in vivo experiments were conducted to jointly evaluate the effects of different thicknesses of bioabsorbable polymer vascular stents on their radial capacity, hemodynamics and in vivo outcomes.
Chong Chen, Tao Li, Zhongyou Li, Jingyuan Zhou, Zhuo Zhang, Yan Xiong, Rifang Luo, Yu Chen, Yunbing Wang, Ping Fu   +9 more
wiley   +1 more source

Chiari I Malformation: Review and Update of Current Treatment Options

Clinical Anatomy, EarlyView.
ABSTRACT The pathophysiology of Chiari malformation type I (CM‐I) is complex, involving structural abnormalities at the craniovertebral junction that result in herniation of the cerebellar tonsils through the foramen magnum. In this study, we aim to present and evaluate current treatment options for CM‐I, with a focus on evidence‐based clinical ...
Jordan J. Lo, Shuhei Shiino, Stephen Z. Shapiro, Brianna L. Hines, Noritaka Komune, Carmine Antonio Donofrio, Filippo Badaloni, Antonio Fioravanti, Joseph Lockwood, C. J. Bui, Aaron S. Dumont, R. Shane Tubbs   +11 more
wiley   +1 more source

Posture-dependent cerebrospinal fluid flow measurement in the optic nerve subarachnoid space using multi-delay 2D interslice saturation MRI

Brain Research Bulletin
Recent studies have indicated that CSF dynamics within the optic nerve subarachnoid space (ONSAS) may play an important role in the progression of optic diseases.
Minjae Kim, Sung-Hong Park
doaj   +1 more source

The Impact of Aging on the Anatomical Course of the Azygos Vein: A Retrospective, Computed Tomography Study

Clinical Anatomy, EarlyView.
ABSTRACT The azygos vein (AV) is typically described as ascending vertically to the right of the vertebral column before arching anteriorly to drain into the superior vena cava. However, a small number of studies suggest that it is found leftward in older adults.
Lauren R. Hector, Hania Paverd, Arthikkaa Thavakumar, Cecilia Brassett, Timothy J. Sadler   +4 more
wiley   +1 more source

Effect of stent position on flow characteristics in a cerebral aneurysm [PDF]

, 2012
The position of an intracranial stent in relation to the ostium of a cerebral aneurysm can significantly affect the blood flow characteristics through the ostium and inside the aneurysm.
Atherton, MA, Collins, M, Frangi, A, Larrabide, I, Pereira, VM, Saxter, T   +5 more
core