Browsing Theses & Dissertations by Title
Now showing items 5-24 of 3312
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A. Design, synthesis, and anti-tubercular activity of leningosterol and its derivatives B. design, synthesis, and anti-Infective activity of isothiocyanate and isoselenocyanate-functionalized Amphilectane Diterpenes
(2016-07)Saringosterol (1.22), a sterol isolated from the brown algae Sargassum ringgoldianum and Lessonia nigrescens, is a potent anti-tubercular agent with a minimum inhibitory concentration (MIC) of 0.25 µg/mL and low cytotoxicity ... -
(Ab)used, mad, and discarded : successful and failed healing rehearsals in Afro-Caribbean women’s fiction
(2021-05-19)(Ab)Used, Mad, and Discarded: Successful and Failed Healing Rehearsals in Afro-Caribbean Women’s Fiction examines how female characters deal with fracturing oppression and trauma to achieve healing. This dissertation argues ... -
Above ground forest biomass and carbon status in the Rio Grande de Arecibo watershed
(2005)Tropical forest ecosystems, especially young secondary-rapid growing forests, naturally or artificially developed, have great potential for long term carbon sequestration and storage. This ecosystem function helps to ... -
Abrazos a la Tierra: Banco de Actividades y Recursos Ecológicos para Preescolares
(2021-04-30)Abrazos a la Tierra: Banco de actividades y recursos ecológicos para preescolares, es un proyecto dirigido a presentar posibles soluciones y alternativas para una educación basada en una visión ecocéntrica, ante la crisis ... -
Absorción de CD por Brachiaria Brizantha y Chloris Gayana en tres suelos con diferentes propiedades químicas, físicas y mineralógicas.
(2011)Phytoremediation is an ecologically friendly, cost effective technique that uses plants to remediate contaminated soil and water. One of the objectives in this study is to evaluate the absorption of cadmium (Cd) by two ... -
Abundance, composition and survivorship of juvenile corals in the southwestern Puerto Rico, la Parguera
(2006)The distribution, abundance, species composition and survivorship of juvenile corals over natural substratum were quantified in 6 reefs along the insular shelf off La Parguera Puerto Rico from August 2003 to August 2005. ... -
Abundancia y composición de las comunidades zoopláncticas sobre los arrecifes coralinos en Isla Desecheo, Puerto Rico
(2005-05)A study of zooplancton taxonomic composition and abundance was performed in the vicinity of Puerto Canoas and Puerto Botes reefs in Isla Desecheo. The main objective of the study was to examine the influence of the coral ... -
Abundancia y distribución de Pontodrilus litoralis en las costas cercanas al Faro de Cabo Rojo, Puerto Rico
(2010)The purpose of this investigation was to determine the structure and dynamics of the populations of the oligochate Pontodrilus litoralis on the coasts near the Cabo Rojo Lighthouse in Puerto Rico. During the months of ... -
Acceleration of finite field arithmetic with an application to reverse engineering genetic networks
(2008)Finite field arithmetic plays an important role in a wide range of applications. This research is originally motivated by an application of computational biology where genetic networks are modeled by means of finite fields. ... -
Acceso a información y transparencia: su importancia para un mejor funcionamiento en el Departamento de Salud y Departamento de la Vivienda de Puerto Rico
(2020)Los reclamos en Puerto Rico por alcanzar un gobierno transparente siguen en incremento a través de los años. Las instituciones públicas que son responsables de proveer servicios públicos se han caracterizado por años como ... -
Acciones para Ret(Arte) : método para combatir la invisibilización de los derechos culturales en Puerto Rico : sobre una gestión cultural y educativa accesible a comunidades rurales en Puerto Rico.
(2020)This project aims to establish the importance of creating alternative spaces, which I identify as performative spaces, for the concrete enjoyment of cultural rights in our Puerto Rican society, but especially in rural ... -
Accumulation and elimination of copper by the flat-tree oyster Isognomon alatus
(2007-05)A baseline study of copper concentrations in I. alatus from Bioluminescent Bay during May 2004 to June 2005 was conducted. In general, average copper levels were (7.64-17.1 μg/g dry wt), which are lower than those previously ... -
Acerca de las formas torcidas sobre los grupos lineales algebraicos
(2008)Working from the Galois theory, we define linear groups via group schemes. We study different properties of these groups such as connectedness, Lie algebras associated to them, which determine their smoothness. Lastly we ... -
Acercamiento a los profesionales de salud mental: sus explicaciones acerca de los síntomas, tratamientos y etiología del trastorno esquizofrénico
(2021-05-24)Cifras ofrecidas por la Organización Mundial de la Salud, colocan en relieve los altos números de personas diagnosticadas con esquizofrenia a nivel mundial. Cerca de 21 millón de personas al año son diagnosticadas por ... -
Aclimatación precoz y suplementación dietética con vitamina e y zinc como alternativas para el manejo del estrés calórico en pollos de engorde
(2008)The production of broiler chickens in open houses with minimal control of the environment typically takes place in areas of high temperatures causing bird stress and negative effects on the industry. There are diverse ... -
Acople de HSPF - Un modelo de simulación hidrológica con CE-QUAL-W2 de calidad de agua en el Lago Cerrillos, Ponce, Puerto Rico
(2014)Este documento presenta el acople del modelo de simulación hidrológica HSPF (Hydrologic Simulation Program FORTRAN) y el modelo de calidad de agua en lagos (CE-QUAL-W2), realizado en la cuenca del Río Cerrillos y su ... -
An acoustic method for real time air bubble detection in simulated blood vessels
(2012)Exposure to significant changes in ambient pressure commonly occurs in divers during surfacing. These changes induce the formation of nitrogen bubbles in tissues and the presence of these bubbles can cause symptoms of ... -
Acoustic signal representation for environmental surveillance monitoring (esm)
(2007)This work presents an integrated development framework, with scalable and reconfigurable hard- ware/software co-design components, for space-time computational signal processing embed- ded system applications such as ...