Browsing Theses & Dissertations by Title
Now showing items 809-828 of 4082
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Descomposición de leguminosas coberturas en un oxisol en Isabela, Puerto Rico
(2011)Lablab purpureus cv. Rongai and Mucuna pruriens (dwarf mucuna) are used as cover crops because of their beneficial contribution to physical and chemical soil properties. Two studies were conducted at the Agricultural ... -
Descripción morfológica, efecto de temperatura, efectividad de trampas pegajo- sas y determinación de huéspedes alternos para la Chinche Harinosa del cactus de Harrisia: Hypogeococcus pungens (Hemíptera: Pseudococcidae)
(2013)This study was made to describe the developmental stages of the Harrisia cactus mealybug (HCM), the effects of temperature in its life cycle, the ability to detect immature and males (on their nuptial flights) by the use ... -
Descripción y la aplicación de la teoría de la búsqueda bayesiana: objetos perdidos en el océano utilizando la información sobre la ubicación de barcos, aviones e individuos
(2021-05-14)El propósito de esta investigación es presentar un análisis y utilizar un algoritmo para encontrar los objetos perdidos en los océanos utilizando el Teorema de Bayes. Una parte de este concepto es trabajar en la Teoría de ... -
Description and phylogeny of Azotoctla, a new neotropical genus of Acalyptini (Coleoptera: Curculionidae: Curculioninae) associated with the staminodes of Cyclanthaceae
(2011)The weevil genus Azotoctla gen. nov. (Coleoptera: Curculionidae: Curculioninae: Acalyptini Thomson) is described to accommodate the following 15 new Neotropical species: A. aecuatorialis, sp. nov. (Ecuador), A. anerunca, ... -
Description of the prokaryotic community in the bivalve Lucina pectinata in marine wetlands of Cabo Rojo, Puerto Rico!
(2011)Lucina pectinata is a large bivalve that belongs to the family Lucinidae; it is generally found in marine wetlands of the Caribbean, deeply burrowed in black mud with high sulfide concentrations. L. pectinata prokaryotic ... -
Descriptive analysis of small ruminant meat offers in Puerto Rico and carcass characteristics of locally slaughtered animals
(2011)This study was divided into three parts. The first part consisted of a descriptive analysis of the types of small ruminant meat (SRM) offered at retail in the 7 agricultural regions of Puerto Rico. In the second part, data ... -
A descriptive study of work-related musculoskeletal disorders and other occupational safety & health issues among agricultural workers in Puerto Rico
(2018-05-18)Given the diverse tasks that are performed in a farm, agricultural workers are constantly exposed to injuries, suffer discomforts, and at risk of developing musculoskeletal disorders (MSD). With an estimated population ... -
Desempeño productivo de conejos alimentados con dietas con distinto contenido de almidón y suplementados con ácidos orgánicos en el agua de bebida
(2014)The experiment was conducted in order to evaluate the productive performance of growing rabbits fed diets of different starch content and supplemented with organic acids in the drinking water. Forty-eight New Zealand White ... -
Desempeño sísmico de un puente cimentado sobre fustes barrenados en diferentes tipos de suelo
(2006-05)El uso de los fustes barrenados como alternativa para la fundación profunda en puentes es cada vez más popular debido a que a veces esta tecnología resulta más atractiva sobre los pilotes hincados por sus ventajas económicas ... -
Desglose de Puerto Rico Ilustrado : 1936-1940.
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Design and analysis in modelling reactive separation processes
(2008)This work presents the existence of multiple steady states in equilibrium multistage reactive distillation for methyl tert-butyl ether (MTBE) synthesis. The Rachford-Rice procedure is extended to reactive systems where a ... -
Design and analysis of an accelerated stability test for an in-vitro diagnostic product with lot-to-lot variation
(2009)This work presents a research project performed in Abbott’s Diagnostics Division in Puerto Rico with the purpose of providing an empirical rather than a simulation based method for applying Arrhenius kinetics theory to a ... -
Design and analysis of capacitively-fed folded slot and rectangular patch antenna for body centric wireless comunications
(2015)In this thesis two antenna configurations are designed and modified, to operate in the 2.45 GHz ISM Band, to be used in body centric wireless communication applications. The two configurations were a Capacitively-Fed Folded ... -
Design and analysis of scalable floating point fast fourier transforms on field programmable gate arrays
(2009)This project analyzed the impact on the performance of a floating point Fast Fourier Transform (FFT) of modifying design parameters that included the number of points, precision, and folding factor. The performance parameters ... -
Design and characterization of a passive wireless DNA sensor
(2014)In order to predict and avoid disasters due to gene mutation, reliable DNA information is necessary to be monitored in real time. Existing DNA sensing technologies offer outstanding performance in terms of the resolution ... -
Design and characterization of a pressure differential trapping mechanism for suspended micro-particles in a micro-fluidic device
(2012)The increasing interest for dedicated analysis of single particles at microscopic scales, such as biological cells, has led researchers to create micro-fluidic systems capable of trapping particles in a liquid flow. The ...