• Efectos de un protocolo de alimentación intensiva sobre el crecimiento y salud de becerras y becerros Holstein y Jersey en el trópico 

  Navedo Guzmán, Ninochka (2020-05-26)

  The objective of this research was to assess the growth and health of Holstein and Jersey calves under an intensive feeding protocol (INT) and a traditional feeding protocol (TRA) under tropical conditions. Calves were ...

• Efecto de L-carnitina dietética sobre algunos parámetros repodcutivos en semen de gallos Brown Leghorn 

  Banuchi Valentín, Kiara M. (2020-05-26)

  One hundred thirty-day-old male breeders of the Brown Leghorn breed were randomized to diets with 0, 250 and 500 mg/kg of L-carnitine. All birds were fed equal amounts of their respective diet from the first week until the ...

• Evaluación de tratamientos post-cosecha para reducir lesiones de antracnosis (Colletotrichum gloeosporoides) en frutos de papaya (Carica papaya L.) 

  Cabrera Bartolomei, Yoriann (2020-05-29)

  Papaya (Carica papaya L.) is a fruit, native from Central America. In Puerto Rico, papaya is one of the tropical fruits in greatest demand; given its medicinal benefits and high nutritional value. However, its harvest has ...

• Calidad microbiológica de la leche pasteurizada entera (3.25%) y parcialmente descremada (1%) en Puerto Rico y su efecto en el largo de vida útil 

  Otero Franqui, Angel (2020-05-29)

  Se analizaron 20 muestras de leche pasteurizada (10 enteras, 10 parcialmente descremadas) durante un transcurso de 10 semanas, comenzando en noviembre 2018 y terminando en marzo 2019, para determinar el efecto que tiene ...

• The rise of messaging Apps and their influence on language learning 

  Ríos Hernández, José (2020-05-27)

  Mobile text messaging and its effect on language use has been a well-studied field in past years. However, not until recently have mobile messaging apps and their influence on language learning been researched. Nowadays, ...

• Effects of Mg and Si additions to novel Al-Ce based alloys for aerospace applications 

  de Jesús López, Manny Xavier (2020-07-24)

  The experimental work in this thesis is focused on the alloying effects of Mg and Si in Al-Ce base alloys. The alloys were gravity cast over a 20-point (or target chemical compositions) test matrix. X-ray diffraction, ...

• Alternate texts, alternate pedagogies: Autoethnographic research with graduate teaching assistants in an ESL environment 

  García de la Noceda Vázquez, Laura (2020-07-23)

  The purpose of this thesis is to study the graduate teaching assistants (GTAs) who are instructors of record in undergraduate-level general education courses in the Department of English at the University of Puerto Rico ...

• TNT and MO photodegradation in deionized and salt waters with visible light assisted by photoactivation of modified TiO2 

  Padilla Rivera, Gabriela I. (2020-05-22)

  The release of munitions during military combat events or training exercises represents an alarming situation to the marine environment. Since nitroaromatic compounds (NACs) that are released from these weapons remain in ...

• Molecular and morphological characterization of Rhodobacter sphaeroides 7001 bacteriophages øR3-PR6 and øR3-PR7 

  Román Rodríguez, Franklin (2020-05-26)

  Bacteriophages are ubiquitous viral particles found in most environments, such as oceans, rivers, and soil. This wide distribution makes phages one of the most abundant viral types on the planet. Bacteria are outnumbered ...

• Mechanical, durability and financial analysis of concrete mixtures with nanosilica, silica fume and fly ash 

  González Solá, Luis (2020-05-14)

  This study encompasses the analysis of mechanical properties, durability and cost-effectiveness of concrete mixtures with nanosilica particles, silica fume and fly ash utilized as admixtures. The cost of materials for the ...

• Clustering highly correlated predictors to extract early predictive signatures of CAR-T cell quality 

  Odeh Couvertier, Valerie (2020-07-03)

  Improving accessibility to innovative cancer immunotherapies such as CAR-T cell therapy is imperative to allow treatment for patients in need. The establishment of critical quality attributes and parameters is crucial for ...

• Manejo de malezas, aplicación de gallinaza, y sus efectos en lombrices de tierra, propiedades físicas, químicas de suelo y rendimiento de banana ‘Grand Nain’ (Musa acuminata) 

  Jiménez Prado, Oliver G. (2020-05-28)

  The objective was to determine the effects of chicken manure amendment and control of weeds with glyphosate on the soil and yield of Gran Nain (Musa acuminata) banana. The treatments were: CH (fertilization with 10-20-5-3 ...

• A decision support system for gate operations at Clarence Cannon National Wildlife Refuge (CCNWR) in Pike County, MO 

  Velez Ramos, Oscar A. (2020-05-25)

  The purpose of the project is to create a decision support system (DSS) by developing guidelines on how to operate a gravity drain structure gate (GDSG) in the Clarence Cannon National Wildlife Refuge (CCNWR), located in ...

• Gender, pedagogy, and werewolves: Duality in reading and teaching Quinn Loftis's Prince of Wolves 

  González Díaz, Keyla (2020-05-20)

  For generations werewolves have been a symbol of an uncontrollable male desire, however, Quinn Loftis has changed the civilized-savage binary in her novel, Prince of Wolves, to suggest that in the wake of multiple rape ...

• Efecto de la temperatura de almacenamiento sobre la concentración de compuestos aromáticos en el café Limaní 

  Rivas-Moreno, Nailia (2020-05-20)

  Coffee is the most exported product worldwide after oil and the most consumed beverage after water. The high demand for this product is mainly due to its flavor and aroma characteristics. The aroma is defined by 20 to 30 ...

• A framework with a cost estimation model and the identification of high vehicle crash locations with injured persons in Puerto Rico 

  Bianchi-Santiago, Josie (2020-05-27)

  Según la Organización Mundial de la Salud (2018), 1.35 millones de personas mueren cada año y de 20 a 50 millones de personas resultan heridas o discapacitadas cada año en choques automovilísticos. La Oficina de Estadísticas ...

• Study of the evolution of a lava flow field using ASTER, OLI and Unmanned Aerial Vehicle imagery: the 2013-2017 lava flows from the Santiaguito Dome Complex, Guatemala 

  Nin Hernández, Giovanni Gabriel (2020-05-28)

  A new lava field was emplaced in Santiaguito between May 2014 and February 2015, with an average volume of 8.8 x 106 m3 and a 3.24 km long dacitic lava flow. This was a perfect opportunity to describe and analyze its ...

• Design of a leaky-wave antenna for 5G purposes using gap-waveguide technology 

  Soto Medina, María del Rocío (2020-05-25)

  A quasi-uniform leaky-wave antenna for 5G was designed at 39 GHz using the new holey EBG gap-waveguide structure. The antenna is designed for n260 band, with the requirements that it is compact, low-cost and has high-power ...

• Simple and practical instrumentation systems for research applications 

  Guerrero Cabarcas, Gerardo David (2020-05-28)

  This work presents the design and construction of three electronics devices related to the area of instrumentation. These devices are meant to be used with specific sensors and transducers in the areas of agricultural ...

• Detection and discrimination of high explosives on human hair by Raman scattering 

  Colón González, Francheska M. (2020-05-29)

  High explosives (HE) represent a high risk to the safety and health of the general population. Therefore, there is an ongoing demand for methods of analysis with limits of detection at trace levels for these hazardous ...

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