Results 41 to 50 of about 116,655 (206)

Evaluación de la calidad de programas de educación patrimonial: construcción y calibración de la escala Q-Edutage

open access: yesRevista de Psicodidactica, 2020
Resumen Mejorar la evaluacion de la calidad de los programas educativos es uno de los principales objetivos de investigacion en educacion patrimonial.
Olaia Fontal Merillas   +3 more
semanticscholar   +1 more source

Phylogeography of Silver Fir in the Pyrenees Based on Palaeoecological and Genetic Data Shows Westward Colonisation

open access: yesJournal of Biogeography, Volume 53, Issue 2, February 2026.
ABSTRACT Aim To reconstruct the colonisation dynamics of silver fir in the Pyrenees during the Holocene using genetic and paleoecological data. Location Abies alba forests in the Pyrenees and Northeastern Iberia. Taxon Silver fir (Abies alba Mill.).
A. Pèlachs   +11 more
wiley   +1 more source

External Validation of Cardiovascular Risk Scores in the Southern Cone of Latin America: Which Predicts Better? [PDF]

open access: yes, 2018
Introducción: La estimación inexacta del riesgo cardiovascular poblacional puede llevar a un manejo inadecuado de las intervenciones médicas preventivas, como, por ejemplo, el uso de estatinas.
Danaei, Goodarz   +7 more
core  

A practical approach to perform the isotropy test for extremity dosemeters [PDF]

open access: yes, 2016
The requirements for determining extremity dosemeter performance have evolved over the past decade. In 2010, the Spanish Nuclear Safety Council (CSN) adopted a national protocol with performance requirements based on ISO 12794.
Ginjaume Egido, Mercè   +3 more
core   +2 more sources

Quality Infrastructure for Resilient Pharmaceutical Manufacturing in Ethiopia: A Comparative Archival Review

open access: yesJournal of Critical Infrastructure Policy, Volume 7, Issue 1, Spring/Summer 2026.
ABSTRACT The National Quality Infrastructure (NQI) in a given country provides the essential framework for quality assurance integrating standardization, metrology, accreditation, and conformity assessment to create the technical backbone for industry and trade. Hence, building a resilient NQI is fundamental to securing medicine quality, enabling local
Addisu Afrassa Tegegne   +3 more
wiley   +1 more source

Importancia de la calibración en los laboratorios de química analítica [PDF]

open access: yes, 2016
La química analítica tiene como finalidad el estudio de la composición química de una muestra, mediante métodos de laboratorio analíticos. En cualquier laboratorio de química analítica, el objetivo principal es obtener resultados fiables y consistentes ...
Espejo Cuadrado, Manuel
core   +2 more sources

Receta práctica paso a paso para construir dendrómetros de punto de bajo costo

open access: yesEcología Austral, 2020
Los dendrómetros automáticos de punto son equipos de medición que se usan en la actividad forestal para medir en alta resolución espacial y temporal las variaciones en el fuste de los árboles. Esta información con gran nivel de detalle es relevante para
Juan P. Diez   +5 more
doaj   +1 more source

Calibración de Microscopios Confocales [PDF]

open access: yes, 2008
El microscopio confocal ha sido durante mucho tiempo un instrumento de observación tridimensional con múltiples aplicaciones especialmente dentro de la biología.
García-Ballesteros Ramírez, Juan José   +3 more
core   +1 more source

Using microelectrode models for real time cell-culture monitoring [PDF]

open access: yes, 2011
This paper proposes a cell-microelectrode model for cell biometry applications, based on the area overlap as main parameter. The model can be applied to cell size identification, cell count, and their extension to cell growth and dosimetry protocols ...
Cañete, Daniel   +2 more
core   +1 more source

External validation of QUiPP App in three independent European cohorts of symptomatic women

open access: yesUltrasound in Obstetrics &Gynecology, Volume 66, Issue 2, Page 163-174, August 2025.
ABSTRACT Objective To validate externally the QUantitative Innovation in Predicting Preterm birth (QUiPP) App v.2 for the prediction of spontaneous preterm birth (sPTB) in symptomatic women attending tertiary care in Europe. Methods The QUiPP App v.2 was validated in three independent datasets: a prospective European multicenter cohort across five ...
A. M. Fischer   +8 more
wiley   +1 more source

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