• The Neutrophil-Lymphocyte Ratio is an Independent Prognostic Factor for Overall Survival in Hispanic Patients with Gastric Adenocarcinoma 

  Ramos Esquivel, Allan; Cordero García, Eugenia; Brenes Redondo, Dennis; Alpízar Alpízar, Warner (2018-07-13)

  Introduction High values of neutrophil-lymphocyte ratio (NLR) and platelet-lymphocyte ratio (PLR) are related with poor prognosis in patients with gastric cancer. However, this association has been rarely assessed in ...

• Evaluation of pharmacological therapies used in Costa Rica in patients with metastatic gastric cancer: a retrospective study 

  Cordero García, Eugenia; Ramos Esquivel, Allan; Alpízar Alpízar, Warner (2019-01-18)

  Background: Gastric cancer is one of the leading causes of cancer death worldwide. Surgery is regarded as the best curative treatment option for gastric cancer; however, a high proportion of cases are diagnosed at advanced ...

• Evaluation of the expression of the oncogene C-ERBB-2/HER2 in gastric cancer cases from Costa Rica 

  Cordero García, Eugenia; Baéz Astúa, Andrés; Roa Martínez, Yolanda; Ramírez Mayorga, Vanessa; Alpízar Alpízar, Warner (2019-09-19)

  Justification: The prevalence of gastric cancer (GC) with increased expression of the HER2 oncoprotein shows important variations worldwide. Incidence and mortality rates of GC in Costa Rica are among the highest in Latin ...

• Gastric cancer in the era of immune checkpoint blockade 

  Figueroa Protti, Lucía; Soto Molinari, Rebeca; Calderón Osorno, Melany; Mora Rodríguez, Javier Francisco; Alpízar Alpízar, Warner (2019-09-24)

  Gastric cancer (GC) is one of the most important malignancies worldwide because of its high incidence and mortality. The very low survival rates are mainly related to late diagnosis and limited treatment options. GC is the ...

• Propuestas de sostenibilidad para la comunidad de Calle Zamora, desde la gestión institucional del Colegio Técnico Profesional de Calle Zamora, San Ramón, Alajuela, 2018-2019 

  Montero Salas, Marianela (2019-10)

  La presente investigación se elaboró con la intención de crear propuestas de sostenibilidad para la comunidad de Calle Zamora que sean gestionadas por el Colegio Técnico Profesional de la localidad. Para esto se realizó ...

• Exact solution of an ekpyrotic fluid and a primordial magnetic field in an anisotropic cosmological space-time of Petrov D 

  Alvarado Marín, Rodrigo Eduardo (2017)

  This document obtained and analyzed an exact solution of an ekpyrotic fluid (P = 5/3 µ) and a primordial magnetic field, so that the latter does not induce currents or electric fields. It is determined that the main role, ...

• Coral Reef Bioerosion in the Eastern Tropical Pacific 

  Alvarado Barrientos, Juan José; Grassian, Benjamin; Cantera Kintz, Jaime Ricardo; Carballo Cenizo, José Luis; Londoño Cruz, Edgardo (2017)

  Bioerosion, the weakening and erosion of hard substrates by boring, etching, and grazing organisms, is a major structuring force on coral reefs of the Eastern Tropical Pacific (ETP). Bioerosional processes are the main ...

• Essential oils of Baccharis trinervis (Asteraceae) from Costa Rica 

  Chaverri Chaverri, Carlos; Cicció Alberti, José Francisco (2017)

  Baccharis is an Asteraceae genus of flowering plants, which has about 340 to 400 species, ranging from the Southern United States to the Southern extreme of Argentina and Chile through Central America and the Caribbean ...

• Eastern Pacific Coral Reef Provinces, Coral Community Structure and Composition: An Overview 

  Glynn, Peter W.; Alvarado Barrientos, Juan José; Banks, Stuart; Cortés Núñez, Jorge; Feingold, Joshua S.; Jiménez, Carlos E.; Maragos, James E.; Martínez, Priscilla; Maté Touriño, Juan Laurentino; Moanga, Diana A.; Navarrete, Sergio A.; Reyes Bonilla, Héctor; Riegl, Bernhard; Rivera, Fernando; Vargas Ángel, Bernardo; Wieters, Evie A.; Zapata, Fernando A. (2017)

  Advances in our knowledge of eastern tropical Pacific (ETP) coral reef biogeography and ecology during the past two decades are briefly reviewed. Fifteen ETP subregions are recognized, including mainland and island localities ...

• Exact Solutions of a Chaplygin Gas in an Anisotropic Space-Time of Petrov D 

  Alvarado Marín, Rodrigo Eduardo (2017)

  This document obtains two exact solutions to the anisotropic spacetime of Petrov D by using the model of a perfect fluid. These solutions represent a scenario of a universe in which the pressure P and the energetic density ...

• Marine Biodiversity of Eastern Tropical Pacific Coral Reefs 

  Cortés Núñez, Jorge; Enochs, Ian C.; Sibaja Cordero, Jeffrey Alejandro; Hernández, Luis; Alvarado Barrientos, Juan José; Breedy Shadid, Odalisca; Cruz Barraza, José Antonio; Esquivel Garrote, Octavio; Fernández García, Cindy; Hermosillo, Alicia; Kaiser, Kirstie L.; Medina Rosas, Pedro; Morales Ramírez, Álvaro; Pacheco, Cristian; Pérez Matus, Alejandro; Reyes Bonilla, Héctor; Riosmena Rodríguez, Rafael; Sánchez Noguera, Celeste; Wieters, Evie A.; Zapata, Fernando A. (2017)

  The eastern tropical Pacific (ETP) is an isolated oceanic region exposed to extreme oceanographic conditions, including low salinity, low pH, high temperatures during El Niño, and low temperatures during La Niña and seasonal ...

• Essential oil from leaves of Myrcianthes fragrans (Myrtaceae) from Costa Rica. A new chemotype? 

  Chaverri Chaverri, Carlos; Cicció Alberti, José Francisco (2017)

  Myrcianthes is a Myrtaceous genus of flowering plants of about 30 to 40 species, distributed in the American continent. The aim of this work was to study the chemical composition of the foliar essential oil from M. fragrans ...

• A study of a coronal hole associated with a large filament eruption 

  Gutiérrez Garro, Heidy; Taliashvili Enacolopas, Lela; Lazarian, Alexandre; Mouradian, Zadig (2017)

  We report the results of a detailed study of an equatorial coronal hole and a dimming region related to the eruptions of a nearby large filament and subsequent coronal mass ejections (CMEs). The dynamic eruptions of the ...

• Aceptación de un jugo de mora endulzado con estevia en contraste con otros edulcorantes 

  González Torrivilla, César; Hernández Peñaranda, Alicia; Cubero Castillo, Elba María (2017)

  El objetivo de la presente investigación fue desarrollar un jugo de mora (Rubus adenotrichus), endulzado con esteviolglucósidos (glucósidos obtenidos a partir de las hojas de Stevia rebaudina Bertoni) como una bebida ...

• New record of Stellamedusa ventana Raskoff & Matsumoto, 2004 in the Eastern Tropical Pacific 

  Corrales Ugalde, Marco; Morales Ramírez, Álvaro (2019-02)

  Three specimens of the rare scyphozoan Stellamedusa ventana Raskoff & Matsumoto, 2004 were collected during a vertical plankton tow on April 2013 in a shallow bay on the Eastern Tropical Pacific that was sampled eight times ...

• Aposematismo en la rana Phyllobates vittatus (anura: Dendrobatidae): integrando defensas, señales y riesgo de depredación 

  Protti Sánchez, Francesca (2019-10-01)

  El aposematismo es una estrategia defensiva en la cual animales que poseen una defensa lo advierten a los depredadores a través de una señal conspicua. Por ejemplo, algunos animales tóxicos o con poca palatabilidad le ...

• Desarrollo de una metodología tropicalizada de gestión de la calidad orientada a las funciones administrativas que se ejecutan en la Escuela de Química de la Universidad de Costa Rica 

  Ramírez Amador, Sergio Alberto (2019)

  El presente trabajo de investigación surge como una necesidad aparente que tienen las universidades (e instituciones públicas en general) por contar con una metodología de mejora sistemática, eficiente, de alta calidad y ...

• Bonos catastróficos como instrumento de protección financiera ante desastres en Costa Rica 

  Abarca Rojas, Tatiana (2019-08-27)

  La presente investigación pretende plantearuna propuesta de emisión de bonos catastróficos en Costa Rica como un instrumento de protección financiera ante el riesgo de desastres. Diversos países han ...

• Hidrocarburos cuticulares: su potencial como estímulo para el reconocimiento de parentela en dos arañas subsociales anelosimus (Araneae: Theridiidae) y patrones de fijación de hilos de seda en la araña subsocial Anelosimus baeza (Araneae: Theridiidae) 

  Briceño Aguilar, Eduardo (2019-09-27)

  El reconocimiento de parentela en grupos sociales de artrópodos puede ocurrir por diferentes tipos de estímulos, como por ejemplo los compuestos excretados de la cutícula. Un rasgo posiblemente ancestral de las arañas ...

• New record of the starfish Ophidiaster ludwigi (Echinodermata: Asteroidea) from the Pacific of Mexico and Costa Rica 

  Martín Cao Romero, Carolina; Solís Marín, Francisco Alonso; Alvarado Barrientos, Juan José; Laguarda Figueras, Alfredo (2017)

  Ophidiaster ludwigi had been reported only from Panama and Peru. Here we add record of the genus and species for Mexico and Costa Rica; and, first time its bathymetric distribution (0-156 m)

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