Results 51 to 60 of about 116,655 (206)
Revista Mexicana de Ciencias Forestales, 2019 Durango es el principal estado en México para la producción de madera (28.5 % del total nacional). Se estima que la superficie bajo aprovechamiento es de 2 millones de hectáreas; razón por la cual, la ordenación forestal es una tarea importante para los ...
Sacramento Corral Rivas +2 more
doaj +1 more source
Software Radio para antenas inteligentes en comunicaciones personales multistandard [PDF]
, 1998 Peer ReviewedPostprint (published ...
Cabrera-Bean, Margarita +6 more
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Assessment of risk for pre‐eclampsia at mid‐gestation to define subsequent care
Ultrasound in Obstetrics &Gynecology, Volume 65, Issue 6, Page 694-702, June 2025.ABSTRACT Objective To stratify pregnancy care based on the estimated risk of pre‐eclampsia (PE) from screening at 19–24 weeks' gestation by combinations of maternal risk factors, estimated fetal weight (EFW), mean arterial pressure (MAP) and uterine artery pulsatility index (UtA‐PI).
S. Adjahou +5 more
wiley +1 more source
RESULTADOS DE LA COMPARACIÓN INTERLABORATORIOS DE CALIBRACIÓN DE MULTÍMETROS CAMET 2009
Ingeniería, 2011 Se presentan los resultados de la segunda comparación en calibración de multímetros, organizada en Costa Rica, por el Laboratorio Metrológico de Variables Eléctricas (LMVE) en la que participaron doce laboratorios, con capacidad para calibrar multímetros
Juan Gómez Valverde +1 more
doaj +1 more source
Global Change Biology, Volume 31, Issue 4, April 2025.Remote sensing can monitor plant drought stress across ecosystems but is limited by uncertain links between physiological stress and measurements of water content. We examined how water potential and water content, measured in the field, laboratory, and via airborne imaging, vary over time and space in two oak species.
Indra Boving +5 more
wiley +1 more source
Cuantificación de hormonas en comprimidos farmacéuticos por espectroscopía NIR : comparación de procedimientos de calibración [PDF]
, 2010 Los principales objetivos del presente trabajo son la puesta a punto de un método NIR por reflectancia para la determinación del contenido de los principios activos (API) de un preparado farmacéutico comercial y la comparación del efecto que tiene la ...
Arruabarrena Gamboa, Julen +2 more
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Calibración de instrumentos de evaluación-clasificación en matemáticas en la Universidad Jorge Tadeo Lozano [PDF]
, 2014 Item Response Theory, IRT, is a valuable methodology for analyzing the quality of the instruments utilized in assessment of academic achievement. This article presents an implementation of the mentioned theory, particularly of the Rasch model, in order ...
Barragán Moreno, Sandra Patricia +3 more
core +2 more sources
calibrar: An R package for fitting complex ecological models
Methods in Ecology and Evolution, Volume 16, Issue 3, Page 507-519, March 2025.Abstract The fitting or parameter estimation of complex ecological models is a challenging optimisation task, with a notable lack of tools for fitting complex, long runtime or stochastic models. calibrar is an R package that is dedicated to the fitting of complex models to data.
Ricardo Oliveros‐Ramos +1 more
wiley +1 more source
Monte Carlo simulation of the efficiency response of a well-type HPGe detector at 46.54 keV
Nucleus, 2015 In this paper, we used the Monte Carlo simulations method in a well-type HPGe detector using directly the manufacturer supplied data in order to simulate the effi ciency response at 46.54 keV.
Yasser Morera Gómez +3 more
doaj
Remote Sensing in Ecology and Conservation, Volume 11, Issue 1, Page 100-118, February 2025.Selective logging is known to be widespread in the tropics, but is currently very poorly mapped. To improve this, we used in‐situ measurements of aboveground biomass loss (∆AGB) collected from selectively logged permanent sample plots in the southern Peruvian Amazon.
Chiara Aquino +7 more
wiley +1 more source