Results 51 to 60 of about 1,922,963 (250)

Non-invasive evaluation of aortic regurgitation by Doppler echocardiography in children: comparison with contrast angiography

The Turkish Journal of Pediatrics, 2003
Doppler indexes have been used successfully to determine the severity of aortic regurgitation (AR) in adults but have not been evaluated in children.
Dursun Alehan, Huda Elshershari, Arman Bilgiç   +2 more
doaj  

Use of ultrasonography for fetal circulation assessment in canine pregnancy: A review [PDF]

Revista Brasileira de Saúde e Produção Animal
This literature review discusses advances in gestational ultrasound in bitches, focusing on the use of Doppler technology for maternal-fetal hemodynamic assessment.
Maíra Planzo Fernandes, Gleice Mendes Xavier, Miguel Ferreira Bomfim Baptista, Marcus Vinícius Galvão Loiola, Antonio de Lisboa Ribeiro Filho   +4 more
doaj   +1 more source

Improvement of diastolic dysfunction after percutaneous coronary intervention in patients with ischemic cardiomyopathy

Journal of Medicine in Scientific Research, 2018
Introduction Impaired systolic cardiac function in patients with ischemic cardiac disease is well known. Diastolic cardiac dysfunction is also found in these patients, so we aimed to show whether percutaneous coronary intervention (PCI) could improve ...
Amir S M. Melika
doaj   +1 more source

Electric fields in plasmas under pulsed currents

, 2007
Electric fields in a plasma that conducts a high-current pulse are measured as a function of time and space. The experiment is performed using a coaxial configuration, in which a current rising to 160 kA in 100 ns is conducted through a plasma that ...
A. Fruchtman, A. S. Kingsep, A. V. Gordeev, B. Knyazev, E. Stambulchik, K. Tsigutkin, R. Doron, R. J. Commisso, S. Kingsep, U. Rebhan, V. Bernshtam, V. Gordeev, Y. Maron   +12 more
core   +1 more source

Acute hemodialysis effects on doppler echocardiographic indices

Saudi Journal of Kidney Diseases and Transplantation, 2014
Conventional echocardiographic (ECHO) parameters of systolic and diastolic func-tion of the left ventricular (LV) have been shown to be load dependent.
Leila Abid, Hajer Rekik, Fayçal Jarraya, Ilyes Kharrat, Jamil Hachicha, Samir Kammoun   +5 more
doaj   +1 more source

UV frequency metrology on CO (a3Pi); isotope effects and sensitivity to a variation of the proton-to-electron mass ratio [PDF]

, 2011
UV frequency metrology has been performed on the a3Pi - X1Sigma+ (0,0) band of various isotopologues of CO using a frequency-quadrupled injection-seeded narrow-band pulsed Titanium:Sapphire laser referenced to a frequency comb laser.
Bethlem, Hendrick L., de Nijs, Adrian J., Eikema, Kjeld S. E., Salumbides, Edcel J., Ubachs, Wim   +4 more
core   +2 more sources

Discovery of optical pulsations in V2116 Ophiuchi/GX 1+4 [PDF]

, 1997
We report the detection of pulsations with $\sim 124$ s period in V2116 Oph, the optical counterpart of the low-mass X-ray binary GX 1+4. The pulsations are sinusoidal with modulation amplitude of up to 4% in blue light and were observed in ten different
Braga J., Bruch A., Cieslinski D., Clemens D. Gneiding, Francisco J. Jablonski, Glass I. S., Greenhill J. G., Ilovaisky S. A., João Braga, Krzeminski W., Laurent P., Manchanda R. K., Marildo G. Pereira, Mony B., Nagase F., Predehl P., Rao A. R., Shahbaz T.   +17 more
core   +2 more sources

Blood Scattering Model for Pulsed Doppler

Archives of Acoustics, 2014
The subject of this paper is a new software simulating ultrasound signal scattered on moving blood cells during Doppler examination of blood flow velocity using pulsed technique.
Piotr KARWAT, Andrzej NOWICKI, Marcin LEWANDOWSKI   +2 more
doaj  

On the accuracy of retrieved wind information from Doppler lidar observations [PDF]

, 2003
A single pulsed Doppler lidar was successfully deployed to measure air flow and turbulence over the Malvern hills, Worcester, UK. The DERA Malvern lidar used was a CO2 µm pulsed Doppler lidar.
Browning, C. G. Collier, Eberhard, F. Davies, G. N. Pearson, Gal-Chen, K. E. Bozier, Kuettner, Kunkel, Panofsky, Pearson, Price, Stull, Wilks, Wilson   +14 more
core   +2 more sources

Laser Doppler technology applied to atmospheric environmental operating problems [PDF]

Carbon dioxide laser Doppler ground wind data were very favorably compared with data from standard anemometers. As a result of these measurements, two breadboard systems were developed for taking research data: a continuous wave velocimeter and a pulsed ...
Bilbro, J. W., Dunkin, J. A., Jeffreys, H. B., Weaver, E. A.   +3 more
core   +1 more source