Browsing Facultad de Ciencias de la Tierra y el Mar by Title
Now showing items 1005-1024 of 1099
-
Thin-skinned mass-wasting responsible for widespread deformation at Arenal volcano
(Frontiers Media, 2014-12-03)The shape and stability of a volcano’s edifice depends on the relationship between eruption rate and the loss or redistribution of material due to erosion, mass-wasting or deformation. This work provides measurements of ... -
Tomographic evidence for a subducted seamount beneath the Gulf of Nicoya, Costa Rica: The cause of the 1990 Mw = 7.0 Gulf of Nicoya earthquake
(American Geophysical Union, 2002-04-26)Tomographic images constrain the existence of a subducted seamount beneath the Gulf of Nicoya, Costa Rica. The subducted seamount is found at a depth of 30 km within the rupture area of the March 25, 1990, Mw = 7.0 Gulf ... -
Tools for strengthening productive capacities in beekeepers from the Central Pacific Region of Costa Rica
(Universidad Nacional, Costa Rica, 2023)The aim was to promote the empowerment and productive improvement of beekeepers operating in an area of high ecological degradation and marked poverty levels in the Central Pacific Region of Costa Rica, for whom beekeeping ... -
El trabajo infantil y los riesgos laborales: un abordaje interinstitucional para su atención en Costa Rica
(SALTRA / IRET-UNA, 2015-09-09) -
Trampa de fondo como una alternativa en el control integrado del ácaro Varroa destructor en colmenas de abejas africanizadas
(Revista de Ciencias Veterinarias, UNA, 2023-11-09)Se midió la efectividad de la trampa de fondo en el control del ácaro Varroa destructor en colmenas de abejas africanizadas, de junio a setiembre 2017, en Atenas, Alajuela. Se registró la caída natural de ácaros durante ... -
Transformaciones bioquímicas asociadas a la calidad de algunos grupos genéticos de cacao (Theobroma cacao L.) mediante un proceso de fermentación controlada
(Universidad Nacional, Costa Rica, 2020)La fermentación de cacao es un proceso de gran importancia para la formación de características aromáticas y sensoriales del cacao. El estudio de la diversidad de microorganismos involucrados en la fermentación ha sido ... -
Transport properties of glassy and molten lavas as a function of temperature and composition
(Elsevier, 2016-11-15)We provide measurements of thermal diffusivity (D), heat capacity (CP), and viscosity (η) for 12 remelted natural lavas and 4 synthetic glasses and melts, ranging in composition from leucogranite to low-silica basalt, and ... -
TRATO ANIMAL SIN MAL
(Universidad Nacional (Costa Rica). Escuela de Filosofía., 2018)Elabora un manual bioético basado en el principio de no maleficencia, casos de tenencia en cautiverio de animales silvestres y la legislación nacional, para contribuir a la erradicación del maltrato animal en Costa Rica. ... -
El Turismo Rural Comunitario: una alternativa productiva para la comunidad de Copal, Quebrada Honda de Nicoya, Guanacaste.
(Universidad Nacional, Costa Rica. Facultad de Ciencias de la Tierra y el Mar. Escuela de Ciencias Agrarias, 2009)En Costa Rica en la última década, el Turismo Rural Comunitario (TRC) ha surgido como un sector del turismo que se asocia a esfuerzos de organización comunitaria para la conservación y recuperación de recursos, desarrollando ... -
Turmoil at Turrialba Volcano (Costa Rica): Degassing and eruptive processes inferred from high-frequency gas monitoring
(Wiley, 2016-08-28)Eruptive activity at Turrialba Volcano (Costa Rica) has escalated significantly since 2014, causing airport and school closures in the capital city of San José. Whether or not new magma is involved in the current unrest ... -
Two new species and three morphospecies of Ficophagus Davies & Bartholomaeus, 2015 (Nematoda: Aphelenchoididae) from Ficus subgenus Pharmacosycea (Moraceae) in Central America
(Brill & The Hague Academy of International Law, 2017-03-15)Aphelenchoidid nematodes were collected from the sycones of Ficus subgenus Pharmacosycea from Central America. Two new species of Ficophagus were recovered, and are described herein as F. maxima sp. n. and F. yoponensis ... -
Ubicación de sitios turísticos y recreación del Cantón de Poás
(Escuela de Ciencias Geográficas, 2007)Ubicación de sitios turísticos y de recreación del cantón de Poás, parte de la propuesta de Plan Regulador. -
Understanding and forecasting phreatic eruptions driven by magmatic degassing
(Springer Nature, 2018-05-18)This paper examines phreatic eruptions which are driven by inputs of magma and magmatic gas. We synthesize data from several significant phreatic systems, including two in Costa Rica (Turrialba and Poás) which are currently ... -
Understanding how access shapes the transformation of ecosystem services to human well-being with an example from Costa Rica
(Elsevier, 2017-10-26)Increasingly, ecosystem services have been applied to guide poverty alleviation and sustainable develop-ment in resource-dependent communities. Yet, questions of access, which are paramount in determiningbenefits from the ... -
Use of cholinesterase activity as a biomarker of pesticide exposure used on Costa Rican banana plantations in the native tropical fish Astyanax aeneus (Günther, 1860)
(Journal of Environmental Biology, 2014-01)In Costa Rica, thousands of tones of agricultural pesticides have been used for decades and their use is continuously increasing due to intensive and expanding production of coffee, pineapple, rice, ornamental plants and ... -
Usefulness of the working conditions and health survey in central America in prevention. Author response to comments by Jensen
(BMJ Publishing Group, 2015-06-05)We appreciate Dr Jensen's comments1 on the Central American Survey on Working Conditions and Health (ECCTS)2 and his concern that our sampling methodology may have produced biased results. The ECCTS has broadly followed ... -
Using the sulfide replacement petrology in lunar breccia 67915 to construct a thermodynamic model of S-bearing fluid in the lunar crust
(Elsevier, 2015-12-15)In this work, we investigate the compositions and origin of metasomatic fluids responsible for the formation of sulfide replacement textures in Mg-Suite lithologies of lunar samples 67915-149 and 67915-150. We have constructed ... -
Uso de atrayentes olfativos para el trampeo y manejo de Stomoxys calcitrans en campos de almacenamiento de broza de café en la Zona de los Santos
(Universidad Nacional, Costa Rica, 2022-03)El siguiente trabajo de investigación se realizó en la Zona de Los Santos en los cantones de Tarrazú, Dota y León Cortez, en los beneficios de café, La Candelilla, Don Oscar, La Roca, Don Mayo, La Cabaña, UNDECAF, Farami ... -
Uso de Beauveria bassiana en el control de tecla [Strymon megarus (Lepidoptera: Lycaenidae)] en piña (Ananas comosus (L.) Merr.)
(Universidad de Costa Rica, 2022)El incremento en la producción de piña (Ananas comosus (L.) Merr.) exige al mercado frutas de buena calidad, con menor impacto ambiental y mínimo uso de productos químicos. Objetivo. Determinar la dosis efectiva del hongo ...