Results 71 to 80 of about 502,047 (291)

Radial Pulse Wave Analysis in Young Male Elite Athletes

Artery Research, 2020
Background: Indicators obtained from the analysis of the radial pulse wave allow an indirect evaluation of the interaction between cardiac ejection and arterial walls.
Fernando Clara, José Alfie, Gustavo Blanco, Cecilia Resina, Meschino Gustavo, Mariana Fita   +5 more
doaj   +1 more source

Aortic Pressure Levels and Waveform Indexes in People Living With Human Immunodeficiency Virus: Impact of Calibration Method on the Differences With Respect to Non-HIV Subjects and Optimal Values

Frontiers in Cardiovascular Medicine, 2021
Background: There are scarce and controversial data on whether human immunodeficiency virus (HIV) infection is associated with changes in aortic pressure (aoBP) and waveform-derived indexes.
Alejandro Diaz, Marina Grand, Marina Grand, Juan Torrado, Federico Salazar, Yanina Zócalo, Daniel Bia   +6 more
doaj   +1 more source

Quantum-electrodynamical parametric instability in the incoherent photon gas [PDF]

, 2013
We present a theory for the quantum-electrodynamical (QED) parametric scattering instability of an intense photon pulse in an incoherent radiation background.
Eliasson, Bengt, Shukla, Padma, Wang, Yunliang   +2 more
core   +1 more source

Nanoscale Mapping of Plasmonic Charge Transport in Nano‐Resonators Based on Resistive Switching Materials

Advanced Functional Materials, EarlyView.
In this strategy, a conductive nano‐probe is employed to induce nanoscale phase transitions and map the nanoscale conductivity and trap density of GST films. By utilizing the contrasting properties of phase‐change states, nano‐resonators are fabricated that exhibit plasmonic conduction and dramatically different transport characteristics.
Sunwoo Bang, Seunghyo Park, Shashank Shekhar, Yuhyeon Oh, Seunghun Hong   +4 more
wiley   +1 more source

Analysis of pulse-wave propagation characteristics in abdominal aortic sclerosis disease

Theoretical and Applied Mechanics Letters
In this work, a bidirectional fluid‒structure coupling finite element analysis model of the abdominal aorta was established, with the various vascular elastic modulus as the main parameters for atherosclerosis, taking into consideration blood's dynamic ...
Xuehang Sun, Bensen Li, Yicheng Lu, Xiabo Chen, Wenbo Gong, Fuxing Miao   +5 more
doaj   +1 more source

Optical polarization rogue waves from supercontinuum generation in zero dispersion fiber pumped by dissipative soliton [PDF]

, 2019
Optical rogue waves emerge in nonlinear optical systems with extremely large amplitudes, and leave without a trace. In this work, we reveal the emergence of optical polarization rogue waves in supercontinuum generation from a zero-dispersion fiber ...
Cao, Yulong, Gao, Lei, Huang, Ligang, Huang, Wei, Kong, Lingdi, Li, Yujia, Liu, Min, Ran, Hongqing, Wabnitz, Stefan, Zhu, Tao   +9 more
core   +1 more source

Cardiac‐Derived ECM Microspheres for Enhanced hiPSC‐CMs Maturation

Advanced Functional Materials, EarlyView.
Cardiac extracellular matrix microspheres derived from decellularized porcine heart provide a biomimetic 3D microenvironment for human induced pluripotent stem cell–derived cardiomyocytes (hiPSC‐CMs). This platform supports short‐ and long‐term culture, enhances structural organization, and promotes electrophysiological and functional maturation of ...
Jiazhu Xu, Joel Aboagye, Marcella Edwards, Nick Rogozinski, Yufeng Wen, Angello Huerta Gomez, Zui Pan, Ge Zhang, Huaxiao Yang, Yi Hong   +9 more
wiley   +1 more source

Domain Wall Rebounds Driven by Competing Entropic and Spin‐Transfer Torques in Cylindrical Nanowires

Advanced Functional Materials, EarlyView.
Domain‐wall motion in cylindrical magnetic nanowires driven by nanosecond current pulses. Low current densities efficiently displace domain walls, whereas higher currents cause rebound at the wire ends. The effect results from the interplay between spin‐transfer torque and thermally induced processes, highlighting the role of thermal gradients in ...
Elias Saugar, Jorge Marqués‐Marchán, Sara Catalano, Agustina Asenjo, Michael Foerster, Miguel Angel Niño, Manuel Vazquez, Fèlix Casanova, Arantxa Fraile Rodríguez, Rafael P. Del Real, Oksana Chubykalo‐Fesenko, Cristina Bran   +11 more
wiley   +1 more source

Pulse wave propagation rate and dynamics of matrix metalloproteinase in patients with myocardial infarction and arterial hypertension in the presence or absence of diabetes mellitus

Медицинский вестник Юга России
Objective: to study the pulse wave propagation rate and the level of matrix metalloproteinase type 9 in patients with ST-segment elevation myocardial infarction who underwent percutaneous coronary intervention in the presence of hypertension and diabetes
V. A. Suroedov, A. A. Pirozhenko, L. A. Khaisheva, K. A. Khaishev   +3 more
doaj   +1 more source

Numerical study of acoustic oscillations and combustion instabilities in solid propellant rocket [PDF]

, 1997
A numerical analysis of unsteady motions in solid rocket motors has been conducted. A fully coupled implicit scheme based on a dual time-stepping integration algorithm has been adopted to solve the governing equations and associated boundary conditions.
Culick, F. E. C., Roh, T. S.
core