• Método conservativo de diferencias finitas para sistemas de ecuaciones de Schrödinger no lineales 

  Aguilera Martinez, Axi Fabricio (2022-06-28)

  We present a high-order finite difference method to approximate the solution of a strongly coupled general system of nonlinear Schrödinger equations. From the symmetry of the discrete Laplacian and a special discretization ...

• Zeolitic based adsorbents for the removal of siloxanes and derivatives from water 

  Vega Santander, Dariana R. (2022-06-28)

  Low molecular weight siloxanes and derivatives have been identified as problematic compounds in different environments, especially those detected in water bodies. The elimination of these contaminants is essential as it ...

• Proteomic profiles of two threatened Caribbean coral species <i>Acropora palmata</i> and <i>Orbicella faveolata</i> 

  Ricaurte Chica, Martha Lucia (2022-06-30)

  This dissertation consists of three studies related to scleractinian corals to understand how they respond at the molecular and cellular level to changes in temperature. The first study was designed to examine the proteomic ...

• El retrato del Maestro Pedro Albizu Campos en la obra Román Baldorioty de Castro de Cesáreo Rosa Nieves 

  Ramírez Valentín, Mirelis (2022-05-20)

  The purpose of this master’s thesis is to study the historical drama Román Baldorioty de Castro written by the Puerto Rican writer of the Literary Generation of the 1930’s, Cesáreo Rosa Nieves. This project aims to rescue ...

• Evaluation of activated biochar versus organic amendments in an Oxisol (Dag&uuml;ey series) of Puerto Rico and their effect on soil health and growth of Phaseolus vulgaris 

  Rodriguez Torres, Paola Marie (2022-05-19)

  Soil organic amendments have been wieldy used to restore soil health. The main objective of this research was to evaluate the short-term effects of three organic amendments (compost, compost tea and active biochar), on a ...

• Hongos pertenecientes a la familia Botryosphaeriaceae, asociados a la muerte descendente en mango (Mangifera indica linn.), luego del Huracán María en Puerto Rico 

  Quimbita Reyes, Alexis Marcelo (2022-04-25)

  Entre 2019 y 2020 se muestrearon árboles de mango de los cultivares ‘Keitt’ y ‘Palmer’ con síntomas asociados a muerte descendente en Juana Diaz y Santa Isabel, Puerto Rico, con el propósito de identificar hongos de la ...

• Effect of cover crops on soil quality parameters of a Fraternidad soil (Typic Haplusterts) at Lajas Valley Agricultural Reserve, Puerto Rico 

  Rivera Alejandro, Adriana (2022-05-09)

  Efforts to develop better soil management practices are the key for achieving sustainable ecosystems. Cover crops are one of the many tools available to achieve this goal, that is why we evaluated the effect of ten species ...

• Efecto del periodo de días en alimentación para alcanzar el peso al sacrificio sobre características productivas, rendimiento de la canal y cortes, calidad de la carne y parámetros de la salud de ovinos criollos alimentados con raciones totales 

  Bayne Hernández, Alana G. (2022-05-19)

  Se comparó el efecto del periodo de días en alimentación (DIA) para alcanzar el peso al sacrificio y el peso final a la matanza sobre características productivas, rendimiento de la canal caliente y fría, y rendimiento de ...

• High precision detection of LINE-1s in human genomes 

  López Gerena, Juan Omar (2022-05-20)

  Long interspersed elements 1 (LINE-1s or L1s) are autonomous retrotransposons that make up about 17% of the human genome. Strong correlations between abnormal L1 expression and several human diseases have been reported, ...

• Incidencia, severidad y viabilidad de la roya de la hoja del cafeto (Hemileia vastatrix Berk. et Br.) en la zona cafetalera de Puerto Rico 

  Esparra-Rivera, Eileen (2022-05-18)

  La roya de la hoja del cafeto (Hemileia vastatrix Berk. et Br.) es la enfermedad más limitante en la producción mundial de Coffea arabica. Monitorear el estatus y progreso de la enfermedad es la herramienta más eficaz para ...

• Interlacing the evaluation of mechanical properties of mortar cement with near-infrared spectroscopy using multivariate data analysis 

  Florian Algarin, Luis Fernando (2022-05-20)

  This thesis focuses on the development of near-infrared spectroscopy methods to investigate the mineralogical evolution and compressive strength resistance of Portland cement type I present in cement mortar during the ...

• Biophysical studies: Interaction of the Aptamer-protein complexes 

  Heredia Negron, Frances L. (2022-05-16)

  Aptamers are synthetic nucleotides used as probes for a plethora of molecules. Their applications include therapeutics, biosensors, drug delivery, among others. Aptamers bind strongly and selectively to a target because ...

• Estudio de la estabilidad y aceptabilidad general del desarrollo de una barra cereal lista para el consumo utilizando harina de batata mameya (Ipomoea batatas) 

  Ávila Basabe, Cristina Michelle (2022-05-20)

  La presente investigación tiene como principal objetivo desarrollar una barra lista para el consumo que reúna las nuevas demandas de conveniencia del consumidor. Se realizaron tres formulaciones y se evaluó la preferencia ...

• Identificación de Pseudocercospora fijiensis mediante amplificación isotérmica mediada por bucle 

  Román Zea, Denisse (2022-05-20)

  El mayor ingreso agrícola en Puerto Rico proviene de los cultivos farináceos, siendo los bananos y plátanos los principales cultivos de este grupo. Las musáceas se ven afectadas por muchos patógenos, pero la enfermedad más ...

• Comparison between VR and CAD product representation on subject preference via discrete choice experimentation 

  Gutiérrez Villarreal, Luis Enrique (2022-05-20)

  This research compares Virtual Reality (VR) vs. Computer Aided Design (CAD) using a simple product and analyzing three factors of a coffee cup: its height, radius and curvature. The representations were conducted in 108 ...

• DNA barcoding of Adiantum (Pteridaceae: Vittarioideae) in Puerto Rico 

  Grafals Nieves, Karlyn (2022-05-20)

  Adiantum L. (Pteridaceae), commonly known as the “maidenhair ferns,” is one of the more readily recognized genera of ferns. It includes species that are native to the Caribbean islands, with 15 species reported from Puerto ...

• Graviola leaf extract toxicity to tongue squamous cell carcinomas 

  Barreto Diaz, Mairan Alejandra (2022-05-12)

  Annona Muricata (Graviola) is a tropical tree that is common in the Puerto Rican landscape. The anticancer properties of molecules extracted from different parts of the graviola tree have been reported in various cell ...

• A hydrogeochemical analysis to evaluate the water-rock interaction in the North Coast Limestone Aquifer System of Puerto Rico 

  Vargas Serrano, Kateleen (2022-05-20)

  Analyzing the mineralogical composition, and saturation indices in springwaters helps to understand the internal structure of karst aquifers since they affect the porosity, the permeability and the rock alterations (including ...

• The effect of CaS/DMSO nanoparticle dispersion in the cytoskeleton and focal adhesion points of the human melanoma fibroblast adherent cell line Hs 895.T (ATCC CRL7637) and human normal skin fibroblasts adherent cell line CCD-1090Sk (ATCC CRL2106) 

  Rodriguez Martinez, Olga M. (2022-05-20)

  The Skin Cancer Foundation highlights that melanoma is the most dangerous form of skin cancer and there are different treatments for each type. These treatments are invasive and not all patients can control the side effects. ...

• Translanguaging as a practice in the writing of basic English students at the University of Puerto Rico at Mayaguez 

  Buitrago García, Laura (2022-04-13)

  The topic of translanguaging has gained great relevance in the field of second language acquisition in the last few years. Authors such as Blackledge and Creese (2010), Mazak and Herbas-Donoso (2015), Velasco and García ...

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