Results 81 to 90 of about 321,612 (302)

Dehydration accelerates reductions in cerebral blood flow during prolonged exercise in the heat without compromising brain metabolism [PDF]

, 2015
Dehydration hastens the decline in cerebral blood flow (CBF) during incremental exercise, while the cerebral metabolic rate for oxygen (CMRO2) is preserved.
Benjamin Garcia, Gibbs EL, Iñaki Llodio, Johnson JM, José González-Alonso, Kameljit K. Kalsi, Niels H. Secher, Scott T. Chiesa, Steven J. Trangmar   +8 more
core   +2 more sources

Development of ultrasonic methods for hemodynamic measurements [PDF]

A transcutanous method to measure instantaneous mean blood flow in peripheral arteries of the human body was defined. Transcutanous and implanted cuff ultrasound velocity measurements were evaluated, and the accuracies of velocity, flow, and diameter ...
Greene, E. R., Histand, M. B., Mcleod, F. D., Miller, C. W., Wells, M. K., Winter, D.   +5 more
core   +1 more source

A Surface‐engineered Microfluidic Device for Antibody‐Mediated Negative Selection of High‐Quality Sperm for Assisted Reproduction

Advanced Functional Materials, EarlyView.
This study reports a microfluidic device with a functionalized surface utilizing a polyoxazoline coating and covalently immobilized gold nanoparticles and anti‐phosphatidylserine antibody. The device efficiently eliminates pre‐apoptotic and apoptotic spermatozoa and yields sperm with substantially improved quality and low DNA damage, offering a simple ...
Soraya Rasi Ghaemi, David J. Sharkey, Nicole O. McPherson, Markos Negash Alemie, Krasimir Vasilev, Sarah A. Robertson   +5 more
wiley   +1 more source

Kinematic and dynamic forcing strategies for predicting the transport of inertial capsules via a combined lattice Boltzmann-Immersed Boundary method

, 2019
Modeling the transport of deformable capsules under different flow regimens is crucial in a variety of fields, including oil rheology, blood flow and the dispersion of pollutants. The aim of this study is twofold.
Coclite, A., De Tullio, M. D., Decuzzi, P., Pascazio, G., Ranaldo, S.   +4 more
core   +1 more source

Shaping Ti3C2 MXene Nanospheres for Precision Near‐Infrared Photothermal Therapy

Advanced Functional Materials, EarlyView.
In this study, we report producing spherical MXenes via fs laser fragmentation of Ti3C2 flakes in liquid medium. The nanoparticles demonstrated pronounced light absorption and high photothermal conversion efficiencies of 68% and 63% under heating with NIR‐I and NIR‐II lasers, respectively.
Julia S. Babkova, Ivan V. Zelepukin, Konstantin G. Shevchenko, Gleb V. Tikhonowski, Lyubov V. Gorelik, Anton A. Popov, Anna S. Sogomonyan, Alina Yu. Kapitannikova, Ivan S. Kazantsev, Dmitry V. Dyubo, Daria A. Panova, Daniil I. Tselikov, Anton A. Minnekhanov, Aziz B. Mirkasymov, Georgy A. Ermolaev, Alexander V. Syuy, Gleb I. Tselikov, Aleksey V. Arsenin, Andrei V. Kabashin, Kostya S. Novoselov, Sergey M. Deyev, Valentyn S. Volkov   +21 more
wiley   +1 more source

Flow characteristics of the proximal pulmonary arteries and vena cava in patients with chronic thromboembolic pulmonary hypertension: correlation between 3.0 T phase-contrast MRI and right heart catheterization

Diagnostic and Interventional Radiology, 2014
PURPOSEWe aimed to determine the correlation between flow characteristics of the proximal pulmonary arteries and vena cava obtained by 3.0 T phase-contrast magnetic resonance imaging (MRI) and hemodynamic characteristics by right heart catheterization in
Xiaojuan Guo, Min Liu, Zhanhong Ma, Shuangkun Wang, Yuanhua Yang, Zhenguo Zhai, Chen Wang, Renyou Zhai   +7 more
doaj   +1 more source

An investigation on the rheodynamics of human red blood cells using high performance computations [PDF]

, 2014
This paper was presented at the 4th Micro and Nano Flows Conference (MNF2014), which was held at University College, London, UK. The conference was organised by Brunel University and supported by the Italian Union of Thermofluiddynamics, IPEM, the ...
4th Micro and Nano Flows Conference (MNF2014), Avital, E, Ji, C, Kaliviotis, E, Munjiza, A, Williams, J, Xu, D   +6 more
core  

From Clinic to Computation: Multiscale Bioengineering Strategies for Durable Biological Aortic Valve Replacements

Advanced Functional Materials, EarlyView.
Bioprosthetic aortic valves have revolutionized the treatment of aortic stenosis, but their durability is limited by structural valve deterioration (SVD). This review focuses on the pericardial tissue at the heart of these valves, examining how its mechanical properties and calcification drive fatigue and failure.
Gabriele Greco, Pierfrancesco Gaziano, Serena Anglese, Simone Morganti, Carlo de Vincentiis, Ferdinando Auricchio, Michele Marino, Michele Conti   +7 more
wiley   +1 more source

Efficacy evaluation of ultrasound-derived fat fraction in predicting of the severity of women with polycystic ovary syndrome and obesity

Frontiers in Medicine
IntroductionTo investigate the feasibility of ultrasound-derived fat fraction (UDFF) as an evaluation index for obese women with polycystic ovary syndrome (PCOS).MethodsA total of 103 Women with PCOS and obesity (case group) and 108 Women without PCOS ...
LingZhi Meng, JinXia Wang, WenJing Liu, Yue Qin, Zongli Yang, Yan Xu   +5 more
doaj   +1 more source

Functional Ultrasound Speckle Decorrelation‐Based Velocimetry of the Brain

Advanced Science, 2020
A high‐speed, contrast‐free, quantitative ultrasound velocimetry (vUS) for blood flow velocity imaging throughout the rodent brain is developed based on the normalized first‐order temporal autocorrelation function of the ultrasound field signal.
Jianbo Tang, Dmitry D. Postnov, Kivilcim Kilic, Sefik Evren Erdener, Blaire Lee, John T. Giblin, Thomas L. Szabo, David A. Boas   +7 more
doaj   +1 more source