Results 51 to 60 of about 1,429,141 (363)

257. Interposición de tejido aórtico sobre homoinjerto pulmonar en operación de ross

open access: yesCirugía Cardiovascular, 2012
La operación de Ross es una alternativa para pacientes jóvenes con valvulopatía aórtica. Uno de sus problemas a corto plazo es la tendencia a la estenosis del homoinjerto pulmonar.
M.L. Cámara   +6 more
doaj   +1 more source

Modelación numérica de losas de concreto hidráulico para pavimentos rígidos considerando la variación de los esfuerzos debido a los gradientes de temperatura [PDF]

open access: yes, 2018
Trabajo de investigaciónMediante el programa de elementos finitos EverFE 2.24 se realizó la modelación numérica de losas de concreto hidráulico utilizando diferentes geometrías y espesores de losa,diferentes posiciones de la carga y diferentes gradientes
Castiblanco-Quintero, Mario Alejandro
core  

Predicting Chronicity in Children and Adolescents With Newly Diagnosed Immune Thrombocytopenia at the Timepoint of Diagnosis Using Machine Learning‐Based Approaches

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Objectives To identify predictors of chronic ITP (cITP) and to develop a model based on several machine learning (ML) methods to estimate the individual risk of chronicity at the timepoint of diagnosis. Methods We analyzed a longitudinal cohort of 944 children enrolled in the Intercontinental Cooperative immune thrombocytopenia (ITP) Study ...
Severin Kasser   +6 more
wiley   +1 more source

Demografía y crecimiento primario durante la regeneración de tres especies de pino a lo largo de gradientes climáticos [PDF]

open access: yes, 2013
13 páginas, 4 figuras y 3 tablasLa regeneración es un proceso crítico en la dinámica de los bosques, que presenta una marcada heterogeneidad temporal y espacial.
Benavides, Raquel   +11 more
core   +1 more source

DELP Treatment on Vision and Retinal Microcirculation in Patients With Acute Ischemic Stroke: Report of Five Cases and Literature Review

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background The delipid extracorporeal lipoprotein filter from plasma (DELP) treatment can effectively reduce blood lipid, increase blood flow, and improve neurological deficits in patients with acute ischemic stroke (AIS). However, its effect on vision and retinal microcirculation in stroke patients has never been reported.
Ning Li   +9 more
wiley   +1 more source

Estructura y composición de las bandadas mixtas de aves invernales a lo largo del gradiente latitudinal en las selvas montanas de las Yungas, Argentina

open access: yesActa Zoológica Lilloana, 2021
Las bandadas mixtas (BM) son asociaciones de diferentes especies que se forman como estrategia para aumentar la eficiencia de forrajeo y/o reducir el riesgo de predación.
María Elisa Fanjul   +2 more
doaj   +1 more source

Influence of the Azores high on sea level pressure and wind, and on precipitation, in the Eastern Tropical Pacific Ocean [PDF]

open access: yes, 1966
ENGLISH: Intensification of the Azores high pressure cell in mid-year, with concomitant air flow from the Caribbean into the Pacific, is shown to be responsible for a secondary minimum of precipitation observed along the tropical Pacific coast of the ...
Bennett, Edward B.
core  

Predicting the Future Burden of Renal Replacement Therapy in Türkiye Using National Registry Data and Comparative Modeling Approaches

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Chronic kidney disease is a growing public health problem worldwide, and the number of patients requiring renal replacement therapy is steadily increasing. Türkiye has experienced a similar rise in both the incidence and prevalence of renal replacement therapy over the past decades; however, national‐level projections of future ...
Arzu Akgül   +2 more
wiley   +1 more source

INFLUÊNCIA DE GRADIENTES GEOGRÁFICOS NA ESTIMATIVA DO ESTOQUE DE CARBONO EM FLORESTA ESTACIONAL SEMIDECIDUAL

open access: yesBIOFIX Scientific Journal, 2019
Diante da importância das formações florestais na fixação de CO2 da atmosfera faz-se necessário o conhecimento da variação do estoque de carbono nos diferentes ecossistemas.
Hortênsia Vilas Bôas   +5 more
doaj   +1 more source

Thermal Gradient Changes Caused by Water in the Soil [PDF]

open access: yes, 2012
The heat flow density data published in the Geothermal Atlas of Europe (1992) show relatively high values for temperature gradients measured in holes in the SW area (Portugal and Spain) of the Iberian Peninsula.
Duque, M. R., Malico, I.
core  

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