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Entropy Estimation From Ranked Set Samples With Application to Test of Fit
(Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ciencias - Departamento de Estadística, 2017-07-01)
This article deals with entropy estimation using ranked set sampling (RSS). Some estimators are developed based on the empirical distribution function and its nonparametric maximum likelihood competitor. The suggested ...
Recent Advances in Visualizing Multivariate Linear Models
(Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ciencias - Departamento de Estadística, 2014-07-01)
This paper reviews our work in the development of visualization methods (implemented in R) for understanding and interpreting the effects of predictors in multivariate linear models (MLMs) of the form Y = XB + U, and some ...
Effects of pyrolysis atmosphere on the porous structure and reactivity of chars from middle and high rank coals
(Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ingeniería, 2018-01-01)
The influence of a CO2 or N2-based atmosphere on the porous structure and microstructure of the chars obtained from the slow devolatilization (10°C/min) of two coals of different rank (Semi-Anthracite (SA) and High Volatile ...
Efectos del consumo de marihuana en escolares sobre funciones cerebrales demostrados mediante pruebas neuropsicológicas e imágenes de neuro-SPE
(Instituto Nacional de Psiquiatria Ramon de la Fuente, 2013)
Comparative study based on 565 adolescent school children coming from four schools in the metropolitan area of Santiago, Chile. All were interviewed in order to select a sample that was stratified for sex, class and condition ...
Bioactivity of Solanum melongena L. and Capsicum annuum L. on Callosobruchus maculatus (Coleoptera: Bruchidae)
(Universidad Nacional de Colombia - Sede Bogotá - Faculdad de Ciencias - Departamento de Biología, 2016-01-01)
The continuous and indiscriminate use of chemicals in agriculture can bring serious problems to human health and the environment. One option is the use of plants with insecticidal action. Given the above, the aim of this ...
Análisis del nivel de competitividad empresarial en el panorama publicitario colombiano fundamentada en el éxito creativo y la responsabilidad ética y jurídicaAnalysis of the level of competitiveness business in the Colombian advertising scene based on creative success
(Corporación Universidad de la Costa, 2019)
A hydromechanical relation governing internal stability of cohesionless soil
(CANADIAN SCIENCE PUBLISHING, 2011-03)
Results are presented from permeameter tests involving unidirectional seepage flow through reconstituted specimens of four widely graded cohesionless soils. The onset of instability is defined by a significant decrease in ...
Survival analysis after hip fracture: higher mortality than the general population and delayed surgery increases the risk at any time
(SAGE, 2020)
Purpose: To estimate survival curves in patients with hip fracture according to gender, age, type of fracture, and waiting time for surgery and to compare them with the life expectancy of the general population. The study ...
Resultados del tratamiento de leucemia linfoblástica aguda en niños.
(2014-02-03)
El objetivo general de este estudio fue evaluar los resultados de las fases de inducción,
consolidación y reinducción del tratamiento de la leucemia linfoblástica aguda (LLA),
utilizado en el Hospital Universitario del ...
Aplicación de Ondas Sónicas y Ultrasónicas como Medio de Control del Ataque de Termitas Subterráneas Reticulitermes fl avipes (Kollar) en Madera de Pino Radiata.
(UNIV BIO-BIO, WOOD ENGINEERING DEPT, 2008)
The behavior of the termites was analyzed when applying sonic and Ultrasonic waves with different frequencies, levels of energy. and waveform to establish the conditions to create a physical barrier to the action of the ...