• Functionalization of titanium surfaces with lysine, aspartic acid, vitamins C and D3: a micro raman study of intermolecular interactions 

  Manrique Bastidas, Cesar Augusto (2019-05-14)

  Titanium (Ti) has been used since 1964 in manufacturing of Ti implants because of its optimal mechanical properties and good biocompatibility. Nevertheless, this biomaterial can have failures due to poor osseointegration ...

• Glacial tillites as proxies for ancient environments: Evidence of impact, erosion, and deposition processes 

  Pincus, Maya (2019-05-14)

  The Vredefort Dome impact structure in South Africa is the oldest and largest verified impact structure on Earth. Because it is fairly well-preserved for its age, it serves as an integral repository for information about ...

• Finding the path: The library as labyrinth in Umberto Eco's The Name of the Rose 

  Cruz Maldonado, Jose A. (2019-05-13)

  This thesis focuses on the labyrinth found within the library in the award-winning novel by Italian author Umberto Eco, The Name of the Rose. This research explores how the library labyrinth represents a postmodern embodiment ...

• Red hind Epinephelus guttatus vocal repertoire characterization, temporal patterns and call detection with micro accelerometers 

  Zayas Santiago, Carlos Mario (2019-05-14)

  Passive acoustic monitoring has been used to study groupers that produce courtship associated sounds (CAS) when they aggregate to spawn. This technique has revealed patterns of sound production during red hind (Epinephelus ...

• The effect of two potyviruses on development and yield in tropical pumpkin and the inheritance of resistance to papaya ringspot virus 

  Seda-Martinez, Wilfredo (2019-05-02)

  Viruses of the Potyviridae can infect all cucurbit crops. General symptoms are well-described, but there are no known studies documenting yield and fruit quality loss in tropical pumpkin (Cucurbita moschata Duchesne). ...

• Evaluation of the lateral stiffness for the seismic analysis and design of squat RC walls 

  Ocampo Escobar, Andrés Fernando (2019-05-15)

  Reinforced concrete (RC) squat walls provide most of the structure lateral strength and stiffness to resist earthquakes and wind loadings in nuclear power plants and other buildings. A reduction factor is usually applied ...

• Niche partitioning strategies of two endemic Sphaerodactylus (Squamata:Gekkota) species found at the Salt Flats Refuge in Cabo Rojo, Puerto Rico 

  Smith Dorr, Rhianna F. (2019-05-15)

  The conservation of endemic reptiles is essential to maintain balance in fragile island ecosystems. My research aimed to provide novel information regarding the ecology of the geckos Sphaerodactylus nicholsi and S. roosevelti ...

• Fertilizer-nitrogen and cover-crop rotation effects on inbred maize (Zea mays L.) yield and soil quality 

  Vilches-Ortega, Ada (2019-02-05)

  This thesis evaluates the effects of fertilizer-nitrogen (N) and cowpea (Vigna unguiculata (L.) Walp.) cover crop (CC) rotation on inbred maize production, microbial community structure and activity and soil quality. The ...

• Quinoa and amaranth: multi-purpose agro-industrial crops 

  Vidal Torres, Edil (2019-03-19)

  Studies were conducted in 2018 with two multi-purpose agro-industrial crops [quinoa (Chenopodium quinoa Willd.) and amaranth (Amaranthus sp.)] to characterize its chemical composition. Limited information is available on ...

• Utilización del suero de mantequilla y suero ácido para la elaboración del yogurt griego 

  Figueroa Nieves, Jesenia M. (2019-05-14)

  El YG es un yogurt regular al cual se le remueve el suero. Es más costoso producirlo debido a su bajo rendimiento. El objetivo de esta investigación es sustituir la leche por SM y SA en su elaboración. Se realizaron 3 ...

• Evaluation of potential living cover crops under a banana canopy and their short-term effects on soil microbial activity 

  Rivera-Ocasio, Zoelie (2019-05-15)

  The use of cover crops has been widely promoted as a strategy to enhance soil quality and health. The main objective of this research was to evaluate three common plant species in Puerto Rico (Heterotis rotundifolia, ...

• Incidencia de Pseudomonas spp. y grupo Bacillus cereus, en leche cruda y leche procesada por ultra alta temperatura 

  Sanchez Leger, Maickol Rafael (2019-05-15)

  Psychrotrophic bacteria levels are one of the most important aspects when processing UHT milk, since these levels will have a negative impact on the shelf-life of the product. To study the incidence of psychrotrophic ...

• Rendimiento y valor nutricional de especies forrajeras en sistemas de almacenamiento 

  Velasco Yaselga, Mayra Cristina (2019-05-08)

  Se realizaron experimentos durante el 2017 y 2018 en las Estaciones Experimentales Agrícolas (EEA)-Isabela y Lajas, y en conjunto con Tai South Farm. Experimento 1. En Puerto Rico (Isabela y Lajas) se establecieron soyas ...

• Christopher Marlowe’s Faustian codes in Eighteenth-century Gothic literature 

  Rivera, María (2019-05-14)

  This thesis explores Renaissance Faustian codes seen in the eighteenth-century Gothic novel using selected works of three writers of the Gothic Revival. I argue that by looking at William Beckford’s Vathek, Matthew G. ...

• Algoritmos de Dithering con tiempo de procesamiento reducido 

  Ortiz-Rodríguez, Samira E (2016)

  En esta investigación se trabajó con el algoritmo Pendiente Máxima (SD o Steepest Descent, por sus siglas en inglés) para hallar una señal de dither (señal aleatoria) que hace que el ruido de cuantización (diferencia entre ...

• Algorithms for image classification using wavelets and fusion methods 

  Yunes-Saito, Yuki C. (2005)

  This work presents a set of algorithms for feature extraction and image classification using wavelet transform and fusion methods. First we use wavelet transform as a feature extraction method. We present some basic ...

• Implementation of a phased array antenna using digital beamforming 

  Torres-Rosario, Juan A. (2005)

  This work presents the design of a transmitter/receiver Digital Beamformer (DBF) based on the mathematical model of a far-field plane wave incident on a sensor array. Simulations of a DBF transmitter and receiver are ...

• A switched opamp comparator to improve the conversion rate of low-power low-voltage successive approximation adcs 

  Vega-de la Cruz, Carlos A. (2005)

  The continued drive toward technology scaling in VLSI design has provided greater integration levels in silicon chips. Thanks to the reduction in minimum feature size and the corresponding decrease in power supply voltage, ...

• Risk assessment of an electric power system using intelligent power routers 

  Torres-Ortolaza, Carlos M. (2005)

  We seek to determine the reliability of Intelligent Power Routers (IPR) and the reliability change of an electric power system (PS) operated with and without IPR. The IPR is our module to provide scalable coordination in ...

• Ice water content and reflectivity retrieval from cirrus clouds using millimeter-wave radar and in-situ ice crystal airborne data 

  Morales-Fernández, José (2005)

  Data collected in March 2000 during the Department of Energy (DOE) Atmospheric Radiation Measurement (ARM) Cloud Intensive operational period (Cloud IOP) at the Cloud and Radiation Testbed (CART) site in Lamont, Oklahoma ...

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