Results 81 to 90 of about 1,593,608 (336)

Shape: A 3D Modeling Tool for Astrophysics

open access: yes, 2010
We present a flexible interactive 3D morpho-kinematical modeling application for astrophysics. Compared to other systems, our application reduces the restrictions on the physical assumptions, data type and amount that is required for a reconstruction of ...
Koning, Nicholas   +4 more
core   +2 more sources

Endothelial GPR68 Is Essential for Arteriogenesis and Represents a Therapeutic Target in a Model of Peripheral Artery Disease

open access: yesAdvanced Science, EarlyView.
Endothelial GPR68 is identified as a critical regulator of collateral artery growth in peripheral artery disease. Genetic and pharmacological evidence demonstrates that GPR68 integrates hemodynamic cues to drive monocyte recruitment and inflammatory remodeling, thereby promoting collateral arteriogenesis and tissue perfusion after ischemia ...
Yiyan Song   +12 more
wiley   +1 more source

Tissue Tracking Imaging for Identifying the Origin of Idiopathic Ventricular Arrhythmias: A New Role of Cardiac Ultrasound in Electrophysiology [PDF]

open access: yes, 2005
Several strategies for mapping ventricular outflow tract tachycardia have been reported as useful indices for differentiating between those originating from the right and the left side.
Roy TN, Sunil   +3 more
core  

Bichromatic Slowing of Metastable Helium

open access: yes, 2012
We examine two approaches for significantly extending the velocity range of the optical bichromatic force (BCF), to make it useful for laser deceleration of atomic and molecular beams.
A. P. Kazantsev   +8 more
core   +1 more source

Photonuclear Population of 229m,gTh in Th‐Doped Crystals Toward Nuclear Clock Development

open access: yesAdvanced Science, EarlyView.
This study demonstrates a novel photonuclear approach for producing the nuclear clock isomer 229mTh in thorium‐doped crystals, overcoming current supply limitations. Through cross‐section calculations and Monte Carlo simulations, we identify optimal crystal materials and irradiation conditions, achieving high signal‐to‐noise ratios.
Hao‐Yang Lan   +9 more
wiley   +1 more source

Ultrasound and Doppler examination capabilities in adult portal hypertension type definition

open access: yesPatologìâ, 2015
Early portal hypertension type diagnostics is an ultimate factor concerning kind and tactics of treatment. Aim. To objectify ultrasound examination capabilities, portal hemodynamics were studied in 97 patients using impulse and color doppler ...
N. V. Tumanskaya   +4 more
doaj   +1 more source

Retired A Stars and Their Companions: Exoplanets Orbiting Three Intermediate-Mass Subgiants [PDF]

open access: yes, 2007
We report precision Doppler measurements of three intermediate-mass subgiants from Lick and Keck Observatories. All three stars show variability in their radial velocities consistent with planet-mass companions in Keplerian orbits.
Debra A. Fischer   +10 more
core   +2 more sources

Robot‐Assisted Doppler Optical Coherence Tomography for Intraoperative Evaluation of Microvascular Anastomoses

open access: yesAdvanced Intelligent Systems, EarlyView.
This work presents a robot‐assisted Doppler optical coherence tomography system for autonomous, wide‐field intraoperative assessment of microvascular anastomoses. Machine‐vision–guided probe positioning and adaptive scan planning enable three‐dimensional structural and hemodynamic imaging over extended vessel segments.
Xiaochen Li   +10 more
wiley   +1 more source

Antenatal diagnosis of myometrial invasion in anterior placenta previa by transabdominal color Doppler ultra sound

open access: yesمجله كليه طب الكندي, 2011
Background: The incidence of maternal mortality in placenta previa accrete is 7%,and its preoperative diagnosis is of a great value. Objective: to evaluate the efficacy of transabdominal color Doppler ultrasound in diagnosing placenta previa accreta and
Jwan N. Sulaiman
doaj  

Ecografia Doppler a côres. Aplicações Clínicas.

open access: yesActa Médica Portuguesa, 1996
The enormous success of Ultrasound is derived from its good spatial resolution and diagnostic accuracy. The most recent and most important application of Ultrasound is Color Doppler.
L Castelo, M Reis, R Aguiar
doaj   +1 more source

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