Results 41 to 50 of about 712,797 (209)
ABSTRACT Objectives To investigate the impact of aspirin administration on the incidence of preterm birth, according to the type of delivery and gestational age at preterm birth, and to examine the hypothesis that aspirin delays preterm delivery. Methods This was a secondary analysis of a multicenter stepped‐wedge cluster randomized trial of a first ...
H. H. Y. Leung +29 more
wiley +1 more source
Using neural networks to estimate wave and wind parameters from an HF radar [PDF]
High-frequency (HF) radar systems are used to provide measurements of waves, winds and currents from the sea. By the Doppler Effect the radars interpret the backscattered signal from the sea surface.
Sawaqed Herrero, Víctor
core +2 more sources
ABSTRACT Objective Placental dysfunction can result in small‐for‐gestational age (SGA) or fetal growth restriction (FGR). The aim of this prospective cohort study was to assess the association of the cerebroplacental ratio (CPR) and other more conventional fetoplacental Doppler indices, circulating placental growth factor (PlGF) levels and soluble fms ...
J. Hong +6 more
wiley +1 more source
ABSTRACT Objective A soluble fms‐like tyrosine kinase‐1 (sFlt‐1)‐to‐placental growth factor (PlGF) ratio cut‐off of 38 is currently considered optimal for ruling out pre‐eclampsia (PE); however, implementation of this ratio in clinical practice is limited.
M. N. Nan +15 more
wiley +1 more source
ABSTRACT Objective To determine the diagnostic accuracy of prenatal ultrasound in detecting coarctation of the aorta (CoA). Methods An individual participant data meta‐analysis was performed to report on the strength of association and diagnostic accuracy of different ultrasound signs in detecting CoA prenatally.
C. Villalaín +20 more
wiley +1 more source
La enseñanza de la física a través de módulos experimentales
Esta propuesta de enseñanza y aprendizaje de la Física fue desarrollada en dos instituciones educativas privadas de la ciudad de Bogotá, Colombia, con estudiantes de noveno, décimo e undécimo grado, con edades entre los 13 y 18 años.
Ronald Avendaño +3 more
doaj +1 more source
Aplicaciones del láser Doppler en odontología [PDF]
El flujómetro de láser Doppler es un método no invasivo que proporciona una medida continua del registro del flujo sanguíneo a nivel microvascular. Un haz de luz láser incidente en cualquier tejido humano, es dispersado tanto en las estructuras estáticas
Berini Aytés, Leonardo +3 more
core
ABSTRACT Objectives To determine the incremental diagnostic yield of exome sequencing (ES) after negative chromosomal microarray analysis (CMA) in cases of prenatally diagnosed agenesis of the corpus callosum (ACC) and to identify the associated genes and variants.
H. J. Mustafa +8 more
wiley +1 more source
Remote sensing mediante LIDAR en la UPC [PDF]
Peer ...
Agishev, Ravil R. +7 more
core +5 more sources
Los trabajos prácticos de laboratorio sobre efecto Doppler óptico no son una tarea sencilla, tanto en el diseño como en su realización para fines didácticos.
Esteban Guillermo Szigety +2 more
doaj

