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    • Guía de lectura de la Base de Datos para el Estudio de Inteligencia Tecnológica y Científica del Cannabidiol (CBD) 

      Varela Vásquez, Stefany; Alpízar Segura, Daniel (2023)
      El Excel cuenta con 3 hojas, donde la primera corresponde a Artículos Científicos, la segunda a Patentes y la última a CIP detalle, las cuales son las siglas para Código Internacional de Patentes. De esta manera, en cada ...

    • Guía de los áfidos alados de Costa Rica 

      Voegtlin, David; Villalobos Muller, William; Sánchez Vega, Marco Vinicio; Saborío Rodríguez, Guido Alonso; Rivera Herrero, Carmen (2003-05)
      This guide is a compilation of limited morphological and biological information on the winged morphs of 60 species of aphids that have been collected in Costa Rica. It should not be viewed as a definitive taxnomic treatise ...

    • Guía de mediación pedagógica para aprendizajes comunitarios: comités de agua transfronte- rizos, Costa Rica - Nicaragua : pedagogía social, estrategias para la optimización del uso del agua para consumo humano en las comunidades de La Trocha e Isla Chica en los Chiles, Alajuela 

      Badilla Zamora, Isabel; Barrantes Jiménez, Kenia; Chacón Jiménez, Luz María; Fuentes Schweizer, Paola; Jiménez Corrales, Rafael; Morales Mora, Eric; Segura Esquivel, Sylvia; Solís Sánchez, Gabriela; Vargas Muñoz, Rigoberto; Villalobos Vega, Patricia (2021)
      El equipo de profesores y profesoras de la Universidad Nacional y la Universidad de Costa Rica que elaboró esta guía conforma el proyecto de extensión y acción social universitaria: “Pedagogía social: estrategias para la ...

    • Habenaria Willd. 

      Chinchilla Alvarado, Isler Fabián (2022-12)
      The genus Habenaria was named in 1805 by the famous German botanist, dendrologist, and pharmacist Carl Ludwig Willdenow, a professor at the University of Berlin, member of the Berlin Academy of Sciences and director of the ...

    • Habitat adaptation drives speciation of a Streptomyces species with distinct habitats and disparate geographic origins 

      Wang, Jiao; Li, Yisong; Pinto Tomás, Adrián A.; Cheng, Kun; Huang, Ying (2022-01-11)
      Microbial diversification is driven by geographic and ecological factors, but how the relative importance of these factors varies among species, geographic scales, and habitats remains unclear. Streptomyces, a genus of ...

    • Habitat fragmentation negatively affects effective gene flow via pollen, and male and female fitness in the dioecious tree, Spondias purpurea (Anacardiaceae) 

      Cristóbal Pérez, Edson Jacob; Fuchs Castillo, Eric J.; Martén Rodríguez, Silvana; Quesada Avendaño, Mauricio (2021-03-01)
      Habitat fragmentation is recognized as one of main threats to global biodiversity. Habitat fragmentation negatively affects population size and mutualistic interactions that directly impact plant fitness and genetic ...

    • Habitat fragmentation reduces plant progeny quality: a global synthesis 

      Aguilar, Ramiro; Cristóbal Pérez, Edson Jacob; Balvino Olvera, Francisco Javier; Aguilar Aguilar, María de Jesús; Aguirre Acosta, Natalia; Ashworth, Lorena; Lobo Segura, Jorge Arturo; Martén Rodríguez, Silvana; Fuchs Castillo, Eric J.; Sánchez Montoya, Gumersindo; Bernardello, Gabriel; Quesada Avendaño, Mauricio (2019-05-14)
      Most of the world’s land surface is currently under human use and natural habitats remain as fragmented samples of the original landscapes. Measuring the quality of plant progeny sired in these pervasive environments ...

    • Habituation and spatial memory in the context of emotional regulation: Behavioral and genetic mechanisms underlying context information-processing and de-arousal grooming 

      Rojas Carvajal, Mijail; Rodríguez Villagra, Odir Antonio; Sequeira Cordero, Andrey; Fornaguera Trías, Jaime; Brenes Sáenz, Juan Carlos (2017)
      Habituation is the ability to passively reduce a response after repeated or prolonged exposures to a particular stimulus. From a cognitive perspective, habituation is a basic, information-gating process that contributes ...

    • HACIA LA CREACIÓN DE LA RED DE GEOPARQUES DE LATINOAMÉRICA 

      Campos Bejarano, Lolita (2010)
      Desde el año 2004, la Organización de las Naciones Unidas para la Educación, la Ciencia y la Cultura (UNESCO) promueve la conformación de la Red Global de Geoparques. Para optar a esta certificación, los Geoparques deben ...

    • Hacia un Servicio Geológico de Costa Rica 

      Aguilar Alvarez, Ana Teresita; Soto Bonilla, Gerardo J. (Crisol Revista de Ciencia y Tecnología, 12: 41-42. 2004, 2004)
      En los últimos meses se ha discutido la necesidad de crear un Servicio Geológico de Costa Rica (SGCR) y los ámbitos que abarcaría. El Servicio debería aglutinar todas las funciones que llevan a cabo las entidades de ...

    • Hagfishes of Mexico and Central America: Annotated catalog and identification key 

      Angulo Sibaja, Arturo; Del Moral Flores, Luis Fernando (2016)
      This catalogue contains revised and updated taxonomic and distributional information about hagfishes of Mexico and Central America (Pacific and Caribbean coasts). It includes all nominal species of the family Myxinidae ...

    • Hairy kisses: tactile cheliceral courtship affects female mating decisions in Leucauge mariana (Araneae, Tetragnathidae) 

      Aisenberg Olivera, Anita; Barrantes Montero, Gilbert; Eberhard Chabtree, William G. (2015)
      Sexual selection is thought to be an important force driving the evolution of sexually dimorphic morphology and behavior, but direct experimental tests of the functions of species-specific details of morphology are rare ...

    • Hallazgos fenotípicos por imágenes con Tomografía Dental Volumétrica (TDV) en amelogénesis imperfecta 

      Murillo Knudsen, Gina; Cob Castro, Carla; Mena Barrantes, Natalia; Valverde Badilla, Angie; Barrantes Quesada, Ana Belén; Berrocal, Ana Luisa; Silva de la Fuente, Sandra Maria (2016)
      Amelogénesis imperfecta (AI) se describe como un conjunto de defectos mendelianos en la biomineralización del esmalte dental, los cuales son severos en la mayoría de los casos al presentar anormalidades tales como un grosor ...

    • Harnessing titanium dioxide surface toward novel functional materials 

      Solera Rojas, José Andrés; Rapp, Christin K.; Rivera Martínez, M. Cinthya; Pineda Cedeño, Leslie William (2015)
      The ever-increasing worldwide energy consumption has led the society to quest for novel and functional materials that can be used in the development of solar fuels to some extent lessen the dependence on fossil fuels. In ...

    • HAWC and Fermi-LAT detection of extended emission from the unidentified source 2HWC J2006+341 

      Albert, Andrea; Alfaro Molina, José Rubén; Álvarez Ochoa, César; Ángeles Camacho, José Roberto; Araya Arguedas, Miguel; Arteaga Velázquez, Juan Carlos; Arun Babu, Kollamparambil Paul; Ávila Rojas, Daniel Omar; Ayala Solares, Hugo Alberto; Baghmanyan, Vardan; Belmont Moreno, Ernesto; Brisbois, Chad; Caballero Mora, Karen Salomé; Carramiñana, Alberto; Casanova, Sabrina; Cotti Gollini, Umberto; De la Fuente Acosta, Eduardo; De León Acuña, Cederik León; Diaz Hernández, Raquel; Dingus, Brenda L.; DuVernois, Michael A.; Durocher, Mora; Díaz Vélez, Juan Carlos; Espinoza Hernández, María Catalina; Fleischhack, Henrike; Fraija Cabrera, Nissim Illich; Galván Gámez, Antonio; García, Distefano; García González, José Andrés; Garfias, Fernando; González, María Magdalena; Goodman, Jordán Alvin; Harding, J. Patrick; Hona, Binita; Huang, Dezhi; Hueyotl Zahuantitla, Filiberto; Hüntemeyer, Petra; Iriarte, Arturo; Jardin Blicq, Armelle; Joshi, Vikas; León Vargas, Hermes; Linnemann, James T.; Longinotti, Anna Lía; López Coto, Rubén; Luis Raya, Gilgamesh; Lundeen, Joseph; Malone, Kelly; Martínez Bravo, Oscar Mario; Martínez Castro, Jesús Alberto; Matthews, John A.; Miranda Romagnoli, Pedro; Moreno Barbosa, Eduardo; Mostafá, Miguel Alejandro; Nellen, Lukas; Nisa, Mehr Un; Noriega Papaqui, Roberto; Omodei, Nicola; Peisker, Alison; Pérez Pérez, Eucario Gonzalo; Rho, Chang Dong; Rosa González, Daniel; Salesa Greus, Francisco; Sandoval, Andrés; Schneider, Michael; Springer, Robert Wayne; Tollefson, Kirsten Anne; Torres Aguilar, Ibrahim Daniel; Torres Escobedo, Ramiro; Ureña Mena, Fernando Josué; Villaseñor Cendejas, Luis Manuel; Weisgarber, Thomas; Willox, Elijah Job; Zepeda, Arnulfo; Zhou, Hao (2020)
      The discovery of the TeV point source 2HWC J2006+341 was reported in the second HAWC gamma-ray catalog. We present a follow-up study of this source here. The TeV emission is best described by an extended source with a soft ...

    • Headwaters drive streamflow and lowland tracer export in a large‐scale humid tropical catchment 

      Birkel Dostal, Christian; Correa Barahona, Alicia; Martínez Martínez, Marco Antonio; Granados Bolaños, Sebastián; Venegas Cordero, Nelson; Gutiérrez García, Kenneth; Blanco Ramírez, Sara; Quesada Mora, Rafael; Solano Rivera, Vanessa; Mussio Mora, Jason; Chavarría Palma, Andrés; Vargas Arias, Katherine; Moore, Georgianne W.; Durán Quesada, Ana María; Vasquez Morera, Javier; Soulsby, Chris; Tetzlaff, Doerthe; Espinoza Cisneros, Edgar; Sánchez Murillo, Ricardo (2020)
      Headwaters are generally assumed to contribute the majority of water to downstream users, but how much water, of what quality and where it is generated are rarely known in the humid tropics. Here, using monthly monitoring ...

    • Heat content estimates over sets of finite perimeter 

      Acuña Valverde, Luis Guillermo (2016-09)
      This paper studies by means of standard analytic tools the small time behavior of the heat content over a bounded Lebesgue measurable set of finite perimeter by working with the set covariance function and by imposing ...

    • Heliangolides from Viguiera sylvatica 

      Tamayo Castillo, Giselle; Jakupovic, Jasmin; Bohlmann, Ferdinand; Castro Araya, Víctor H. (1989)
      The extract of the aerial parts of Viguiera sylvatica gave, in addition to known heliangolides, four new heliangolides related to 1-desoxyniveusin A and one to 11,13-dihydrofuroheliangolide as well as three guaianolides, ...

    • Helicobacter pylori Colonization Drives Urokinase Receptor (uPAR) Expression in Murine Gastric Epithelium During Early Pathogenesis 

      Alpízar Alpízar, Warner; Skindersoe, Mette Elena; Rasmussen, Lone; Kriegbaum, Mette Camila; Christensen, Ib J.; Lund, Ida Katrine; Illemann, Martin; Laerum, Ole Didrik; Krogfelt, Karen Angeliki; Andersen, Leif Percival; Ploug, Michael (2020)
      (1) Background: Persistent Helicobacter pylori infection is the most important risk factor for gastric cancer. The urokinase receptor (uPAR) is upregulated in lesions harboring cancer invasion and inflammation. Circumstantial ...

    • Hemidactylus frenatus (Common House Gecko). Diet 

      Barquero Arroyo, Marco David (2017)
      Hemidactylus frenatus is an invasive species in the Americas that has succeeded in establishing populations in Costa Rica (Savage 2002. The Amphibians and Reptiles of Costa Rica: A Herpetofauna between Two Continents, ...