Results 51 to 60 of about 267,292 (245)

Pulse contour analysis: a valid assessment of central arterial stiffness in children? [PDF]

, 2018
In adults the contour analysis of peripheral pressure waves in the upper limb reflects central aortic stiffness. Here, we wanted to demonstrate the appropriateness of pulse contour analysis to assess large artery stiffness in children.
Bergmann, Ivo, Eisenberger, Ute, Frey, Felix, Mohaupt, Markus, Simonetti, Giacomo   +4 more
core  

Broader, flatter optical spectra of passively mode-locked semiconductor lasers for a wavelength-division multiplexing source [PDF]

, 1997
Using the time domain master equation for a complex electric-field pulse envelope, we find analytical results for the optical spectra of passively mode-locked semiconductor lasers. The analysis includes the effect of optical nonlinearity of semiconductor
Eliyahu, Danny, Salvatore, Randal A., Yariv, Amnon   +2 more
core   +1 more source

Plasma diagnostics of an EIT wave observed by Hinode/EIS and SDO/AIA

, 2011
We present plasma diagnostics of an EIT wave observed with high cadence in Hinode/EIS sit-and-stare spectroscopy and SDO/AIA imagery obtained during the HOP-180 observing campaign on 2011 February 16.
Asai, Attrill, Chen, Chen, Cohen, Downs, Harra, Harra, Kienreich, Kienreich, Kozarev, Lemen, Liu, Ma, Muhr, Patsourakos, Thompson, Veronig, Veronig, Veronig   +19 more
core   +1 more source

On the measurement of dislocation damping forces at high dislocation velocity [PDF]

, 1972
In direct mobility experiments in single crystals, dislocation velocity is studied as a function of stress by the application of short-duration stress pulses. The stress pulse consists of a loading wave, followed microseconds later, by an unloading wave.
Jassby, K. M., Vreeland, T., Jr.
core   +1 more source

Measuring Blood Pulse Wave Velocity with Bioimpedance in Different Age Groups

Sensors, 2019
In this project, we have studied the use of electrical impedance cardiography as a possible method for measuring blood pulse wave velocity, and hence be an aid in the assessment of the degree of arteriosclerosis. Using two different four-electrode setups,
Shafa Aria, Yassine Elfarri, Marius Elvegård, Adam Gottfridsson, Halvor S. Grønaas, Sigve Harang, Anders Jansen, Thomas Emil Rolland Madland, Ivar Bruvik Martins, Marius Wilhelm Olstad, Tommy Lee Ryan, Anwar Nazih Shaban, Øyvind Løken Svenningsen, Andre Djupvik Sørensen, Emil Holm Ulvestad, Ole Martin Vister, Morten Bratgjerd Øvergaard, Håvard Kalvøy, Fred Johan Pettersen, Hans Henrik Odland, Vegard Munkeby Joten, Øyvind Grannes Martinsen, Christian Tronstad, Ole Elvebakk, Ørjan Grøttem Martinsen   +24 more
doaj   +1 more source

A Comparative Study of Brachial–Ankle Pulse Wave Velocity and Heart–Finger Pulse Wave Velocity in Korean Adults

Sensors, 2020
Arterial stiffness is considered an index of vascular aging. The brachial–ankle pulse wave velocity (baPWV) method is widely used because of its proven effectiveness; and the pulse wave velocity measurement method using both electrocardiogram (ECG) and ...
Jaegeol Cho, Hyun Jae Baek
doaj   +1 more source

Observations of time delayed all-optical routing in a slow light regime

, 2008
We report an observation of a delayed all-optical routing/switching phenomenon based on ultraslow group velocity of light via nondegenerate four-wave mixing processes in a defected solid medium. Unlike previous demonstrations of enhanced four-wave mixing
Byoung S. Ham, F. Xia, M. Sargent III
core   +1 more source

Insulin-resistance HCV infection-related affects vascular stiffness in normotensives [PDF]

, 2015
Background and Aims. Arterial stiffness evaluated as pulse wave velocity, is an early marker of vascular damage and an independent predictor for cardiovascular events.
Adinolfi, Angela Sciacqua, Anna Licata, Benedetto Caroleo, Biddinger, Bugianesi, Ceravolo, Chen, Coresh, Eliezer Joseph Tassone, Francesco Perticone, Giorgio Sesti, Giovanni Tripepi, Go, Higashi, Ilercil, Kraemer, Laurent, Levey, Maio, Maria Perticone, Mattace-Raso, Matthews, Mitchell, Nilsson, Perticone, Perticone, Perticone, Perticone, Petit, Raffaele Maio, Safar, Serena Di Cello, Shintani, Sofia Miceli, Willum-Hansen, Yu   +36 more
core   +1 more source

Effects of bee venom acupuncture on heart rate variability, pulse wave, and cerebral blood flow for types of Sasang Constitution

Journal of Pharmacopuncture, 2009
1. Objectives: To evaluate effects of bee venom acupuncture on cardiovascular system and differences according to each constitution. 2. Methods: Heart rate variability, pulse wave and the velocity of cerebral blood flow were measured before bee venom ...
Lee Sang-min, Kim koo, Oh Seung-yun, Kwon Young-mi, Joo Jong-cheon   +4 more
doaj   +1 more source

The Role of Urate in Cardiovascular Risk in Adolescents and Young Adults With Hypertension, Assessed by Pulse Wave Velocity

Frontiers in Cardiovascular Medicine, 2022
BackgroundUrate is increasingly recognized as a cardiovascular risk factor. It has been associated with hypertension, metabolic syndrome, obesity, chronic kidney disease and diabetes. Its prognostic role is less clear.
Mirjam Močnik, Sonja Golob Jančič, Martina Filipič, Nataša Marčun Varda   +3 more
doaj   +1 more source