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Aplicación de las técnicas de componentes principales y componentes independientes como herramientas en los métodos de regresión lineal múltiple y clasificación no supervisada a partir de variables socio-económicas de Puerto Rico
(2015-06)
Studying the socio-economic aspect of Puerto Rico is of utmost importance for decision-making in the country. This thesis presents different findings, by applying the techniques of: Principal Components, Independent ...
La trasmisión de la epidemia de VIH/SIDA en Puerto Rico: modelos de regresión
(2009-05)
This research considered statistical modeling to forecast the number of deaths by AIDS in Puerto Rico using as predictors variables the number of diagnosed cases classified by transmission modes. For this study data was ...
The effect of the ARRA infrastructure funds to the economic cycles of the 50 U.S. states and Puerto Rico
(2011-05)
This study is dedicated to examine how the distribution and expenditure of the funds of the American Recovery and Reinvestment Act (ARRA) of 2009 destined to infrastructure projects impacted the economic cycles of the 50 ...
Estimation of relative humidity in Mesoamerica and Caribbean region using satellite data
(2017)
This work addresses the estimation of the relative humidity (RH), which is related to the way the body reacts under extreme hot events, and in consequence has influence in human health. RH is commonly obtained from ground ...
Enfoque Bayesiano de un modelo semiparamétrico mixto con distribución Beta
(2017-05)
En este trabajo se propone un modelo semiparamétrico mixto con distribución beta con un enfoque bayesiano usando algoritmos de Monte Carlo vía Cadenas de Markov (MCMC, por sus siglas en inglés). En el modelo propuesto se ...
Population monitoring and morphometrics of Helicoverpa armigera (Hübner), Helicoverpa zea (Boddie), and their hybrids (Lepidoptera: Noctuidae) in Puerto Rico
(2018-07-20)
Helicoverpa armigera and H. zea are serious pests in many crops; H. armigera was detected in 2014 in Puerto Rico. In the period February 2016 to January 2017, 112 traps with a lure for H. armigera were installed in Guanica, ...
Tortuosity index based on dynamic mechanical properties of polyimide foam for aerospace application
(2014)
The aerospace industry has focused on the development of high performance polyimide foams because these materials are known for their thermal and acoustic insulation properties. Tortuosity is defined as a parameter that ...
Rendimiento de los estudiantes del Recinto Universitario de Mayagüez en su primer curso de matemáticas : una aplicación de análisis multivariado
(2010-12)
We obtained data from 6,924 freshmen admitted to the University of Puerto Rico at Mayagüez since 2005 to 2007. For each one of these students we registered information about the following variables: Type of high school ...
Analysis of roadway factors associated with motorcycles crashes in Puerto Rico
(2010)
Increases in registered motorcycles and related crashes and fatalities have been recorded in recent years in Puerto Rico. Road crashes are generally associated with human behavior, roadway design, and vehicle type. This ...
Redes neuronales artificiales y funciones de transferencia aplicados a la estimación de humedad de suelo y temperatura del aire
(2007)
Statistical, mathematical and artificial neural networks techniques were used to estimate the
behavior of the following variables: the air temperature (AT) and the soil moisture (SM).
The AT plays an important role in ...