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Estudio de la transición de fase metal-semiconductor en dióxido de vanadio
(2015)
In this thesis we made a study about the Metal-Insulator phase transition with the
purpose to determine, particularly, the parameters to play a important rol in the
transition. For this we made a study of theories or ...
Catastro de hongos endófitos miceliales en Thrinax morrisii H. Wendl. en el Bosque Estatal de Susúa, Sabana Grande, Puerto Rico
(2005)
Endophytic fungi are organisms that, during all or part of their life cycle, invade
the internal tissues of plants without causing symptoms of disease. A survey of
endophytic micelial fungi in leaves of Thrinax morrisii ...
A bioluminescent bacterial survey from marine ecosystems of Puerto Rico for the determination of their potential use as biosensors
(2011)
Bioluminescence is the phenomenon by which living organisms emit light through an organic
oxidation catalyzed by the enzyme luciferase. These luminescent organisms have been
discovered in all kinds of ecosystems. Among ...
Análisis dinámico y evaluación sísmica de la represa de contrafuertes Guayabal
(2008-11)
Esta tesis presenta el análisis dinámico y la evaluación sísmica de la represa de contrafuertes Guayabal ubicada en Juana Díaz, Puerto Rico para establecer conclusiones preliminares en cuanto a su integridad estructural ...
Characterization of A 1-D small-phased-array-fed discrete lens array (SPAF-DLA)
(2017)
In this thesis, the characterization of the Small-Phased-Array-Fed Discrete Lens Array (SPAF-DLA) was developed, for the purpose of analyzing an alternative architecture to improve antenna array technology. SPAF-DLA is ...
Síntesis y caracterización estructural y magnética del sistema Zn1-xCoxFe2O4
(2005)
Zno is a wide band gap semiconductor (Eg=3.6eV) with direct transition, thus magnetic ion substituted ZnO could be useful for spin-based applications. With this motivation, I investigated Zn1-xCoxFe2O4 including synthesis ...
Entre mitos, archivos y haches: un acercamiento a la novela El hombre, la hembra y el hambre de Daína Chaviano
(2010)
La tesis examina la novela El hombre, la hembra y el hambre (1998) de la escritora
cubana Daína Chaviano conforme a la perspectiva teórica propuesta por Roberto González
Echevarría en Mito y Archivo. De acuerdo con esta ...
Percentile curves in binary longitudinal data
(2006)
This work presents different alternatives for modeling binary longitudinal data for continuous and categorical outcomes. Using a logistic model with random inter- cept, we propose the Percentile Curves concept, which are ...
Effect of exotic canopy on understory species composition in degrades subtropical Dry Forest of Puerto Rico
(2007)
Most of the forest in the dry zone of Puerto Rico is relatively young secondary forest dominated by exotic species. This pattern is the result of the abandonment of lands that were intensively used for agriculture and other ...
Disease assessment, inferences on virus movement, and seedling development in tropical pumpkin (Cucurbita moschata) infected with papaya ringspot virus and zucchini yellow mosaic virus
(2018-05)
Papaya ringspot virus (PRSV) and Zucchini yellow mosaic virus (ZYMV) frequently infect tropical pumpkin (Cucurbita moschata) in Puerto Rico. Breeding programs depend on the development of efficient and reliable methods of ...