• Comparison of handline, underwater visual census (UVC), and remote underwater video (RUV) used by fisheries-independent programs to assess reef fish abundance and biomass 

  López-González, Leysa (2022-08-08)

  Concerning declines in fish populations have ecological and socio-economic implications, jeopardizing the source of income and food security of millions of families. The purpose of fisheries independent programs is to ...

• Estimación del impacto económico del vertedero de Peñuelas: Resultados del método de precios hedónicos 

  Nieves Duprey, Edgardo G. (2022-08-15)

  This study used a hedonic price method to estimate the impact of carbon combustion residue deposits on property prices in Peñuelas, Puerto Rico from 2010 to 2019. In addition, the implicit prices of some structural, ...

• Evaluación de la inclusión de vinazas en dietas nutricionales de vacas lecheras y becerras en el trópico 

  Henao Beltran, Juan Sebastian (2022-07-08)

  <div style="text-align:justify">This study evaluated the effect of the inclusion of condensed molasses solubles (CMS), a by-product of the rum industry, on dry matter intake (DMI), milk yield (MY), and income over feed ...

• Percepción y conocimiento de los agentes agrícolas antes y después de participar de un adiestramiento sobre el uso de la aplicación Google Keep como herramienta para mantener registros de producción animal en Puerto Rico 

  Ortiz Ortiz, José Roberto (2022-07-08)

  Este estudio presenta la percepción y el conocimiento de Agentes Agrícolas del Servicio de Extensión Agrícola antes y después de participar de un adiestramiento sobre el uso de Google Keep como herramienta para mantener ...

• Hydrograph Separation Method (HSM) for the design of storm drain inlets 

  Acevedo González, Ihan-Jarek (2022-07-08)

  Urban stormwater drainage systems are part of the urban drainage infrastructure. They encompass the transportation system, structural surroundings, and the topography of the adjacent environment. Adequate stormwater drainage ...

• Percepción de los estudiantes de Ciencias Agrícolas con respecto a las estrategias de enseñanza utilizadas por la Facultad de Ciencias Agrícolas durante la modalidad presencial y en línea 

  Barbosa Ayala, Kenneth J. (2022-07-08)

  This descriptive study measured the teaching strategies used by the Faculty of Agricultural Sciences and those preferred by students in face-to-face and virtual courses. A valid and reliable questionnaire was designed to ...

• Cover crop effects on giant key lime growth on two soil orders in Puerto Rico 

  Alequin Otero, Wilmarie N. (2022-07-08)

  Las prácticas agrícolas intensivas, como el uso excesivo de productos químicos, han causado erosión y contaminación ambiental en los suelos de cultivos frutales económicamente importantes. Los agricultores utilizan técnicas ...

• Exploring synergistic interactions in copper-gallium oxide-zirconium oxide catalysts for CO2 hydrogenation to methanol 

  Turizo Pinilla, Edgar Eduardo (2022-07-08)

  The development of technologies for capturing, storing, and converting carbon dioxide to chemicals and fuels is critical for addressing issues arising from global climate change. The reduction of CO2 to chemicals such as ...

• Mechanochemical synthesis of Lewis acidic-beta zeolite catalysts to convert fructose into alpha-hydroxy-acids using gamma-valerolactone and water as solvent 

  Montaño Herazo, Angela K. (2022-07-08)

  The zeolite synthesis method has a fundamental role on the catalytic performance because it can influence the distribution of active sites in the zeolite structure and sometimes favor the formation of extra framework metal ...

• Dried Puerto Rican sweet potato (i>Ipomoea batatas</i>) and breadfruit (<i>Artocarpus altilis</i>) particles for tablet compaction 

  Torrens Sotomayor, Luis Francisco (2022-07-07)

  The manufacturing sector in Puerto Rico has been severely affected every time an atmospheric event or problems at the marine docks occur. This is because their raw material mostly comes from foreign industries. An alternative ...

• Fertilization practices to overcome the damage of citrus greening in &lsquo;Improved Meyer&rsquo; Lemon (<i>Citrus Meyeri</i>) and &lsquo;Rhode Red Valencia&rsquo; orange (<i>Citrus Sinensis Valencia</i>) in an Oxisol 

  Feliciano Pabón, Paola M. (2022-06-28)

  Citrus greening (CG) is a deadly disease for citrus for which there is no cure but the damage can be mitigated with an integrated management approach. A study was conducted at the Isabela Agricultural Experiment Substation, ...

• Tuning oxygen vacancy formation in Ni/CeO₂ using rare-earth metal dopants for CO₂ methanation 

  Borrero Negron, Justin I. (2022-07-08)

  The production of consumables through In-Situ Recourse Utilization (ISRU) is an essential concept for NASA-Mars exploratory missions. The production of methane as a potential propellant can be achieved through the Sabatier ...

• Stable isotope analyses (&delta;¹³ C and &delta;¹⁵ N) of the invasive lionfish, <i>Pterois volitans</i>, and native groupers, red hind, <i>Epinephelus guttatus</i> and coney, <i>Cephalopholis fulva</i> in Puerto Rico 

  Aragonés Fred, Carolina (2022-07-08)

  Invasive lionfish (Pterois volitans) in the Western Tropical Atlantic are a threat to coral reef ecosystems due to their voracious appetite, prey naivete, as well as their generalist and opportunistic feeding strategy on ...

• Grafos de factores en dominios con integridad 

  Romero Castro, Offir Neil (2022-07-07)

  Anderson y Frazier (2006) definieron la teor&iacute;a de &tau;-factorizaciones o de factorizaciones generalizadas utilizando una relaci&oacute;n sim&eacute;trica &tau; sobre D^#, el conjunto de elementos distintos ...

• Development of integrin-guided substrates to support cardiac cell manufacturing applications 

  Barreto Gamarra, Carlos A. (2022-07-08)

  Human-induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) are a potential cell therapy due to their ability to recover contractile function after myocardial infarction. Despite their therapeutic potential ...

• Seasonal dissolved oxygen fluctuations through the water column in a shallow tropical bioluminescent bay, la Parguera, Lajas 

  Ayala Torres, Rosamar (2022-07-08)

  Oceans are susceptible to low oxygen concentrations due to anthropogenic activities. In the Caribbean, some coastal regions are experiencing extreme incidences of oxygen depletion, jeopardizing the ecosystem. Using continuous ...

• Relación amiga, grafos y generalización 

  Jiménez Franco, Julián Andrés (2022-07-07)

  Anderson y Frazier en 2006 definieron el concepto de factorizaciones generalizadas sobre dominios enteros. Para esto, los autores restringieron la operación multiplicativa de manera que solo permiten multiplicar los elementos ...

• Adaptabilidad y desempeño del cañamo industrial (<i>Cannabis sativa</i> L.) y cuantificación de los principales cannabinoides 

  Álvarez Beauchamp, Michelle Haydee (2022-06-28)

  En tres estudios, dos de invernadero y uno de campo, se evaluaron variedades de cáñamo para determinar su germinación, parámetros de crecimiento y producción de inflorescencia y el contenido de cannabinoides. Las variedades ...

• Recognizing textual entailment 

  Bermejo Ferrer, José Ángel (2022-07-08)

  Understanding meaning and being able to perform inferences based on natural language text is an instinctive, subconscious process for human speakers, as we are able to quickly derive inferences from text, questions and ...

• First integrative study of the diversity and specificity of Metacercariae of <i>Posthodiplostomum</i> Dubois, 1936 from native and introduced fishes in the Caribbean 

  Diaz Pernett, Sandra Cristina (2022-07-08)

  Metacercariae of the genus Posthodiplostomum are often recorded in freshwater fish second intermediate hosts. While the diversity and taxonomy of this genus are receiving increasing attention in molecular phylogenetic ...

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