Browsing Facultad de Ciencias de la Tierra y el Mar by Title
Now showing items 671-690 of 1099
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Maternal blood and hair manganese concentrations, fetal growth, and length of gestation in the ISA cohort in Costa Rica
(Environmental Research, 2015-01)Background: Animal studies have shown that both deficiency and excess manganese (Mn) may result in decreased fetal size and weight, but human studies have reported inconsistent results. Methods: We examined the association ... -
Maternal blood and hair manganese concentrations, fetal growth, and length of gestation in the ISA cohort in Costa Rica
(Elsevier, 2015)Background: Animal studies have shown that both deficiency and excess manganese (Mn) may result in decreased fetal size and weight, but human studies have reported inconsistent results. Methods: We examined the association ... -
Maternal residential pesticide use and risk of childhoodleukemia in Costa Rica
(Wiley-Liss Inc., 2018-04-15)Evidence suggests that early-life exposure to pesticides inside the home may be associated with childhood leukemia, howeverdata from Latin American countries are limited. We examined whether self-reported maternal residential ... -
Mechanics of back arc deformation in Costa Rica: Evidence from an aftershock study of the April 22, 1991, Valle de la Estrella, Costa Rica, earthquake (Mw=7.7)
(American Geophysical Union, 1994-10)The April 22, 1991, Mw=7.7 Valle de la Estrella, Costa Rica, earthquake represents back arc thrusting of the Caribbean plate beneath the Panama block along the North Panama Thrust Belt. Large back arc thrusting events are ... -
Mechanisms of Unrest and Eruption at Persistently Restless Volcanoes: Insights From the 2015 Eruption of Telica Volcano, Nicaragua
(Advancing Earh and Space Science, 2019)Many of Earth's volcanoes experience well‐defined states of “quiescence” and “unrest,” with unrest occasionally culminating in eruption. Some volcanoes, however, experience an unusually protracted (i.e., decades‐long) ... -
Medición de la huella de carbono del año 2016 y diseño de medidas para lograr la carbono neutralidad en la Asamblea Legislativa de Costa Rica
(Universidad Nacional, Costa Rica, 2020-10)El presente trabajo consistió en elaborar un inventario de emisiones de gases efecto invernadero para 13 edificios, entre propios y alquilados, de la Asamblea Legislativa de Costa Rica en 2016. Además, se desarrolló un ... -
Mejora genética y costos iniciales asociados al manejo de plantaciones clonales de Swietenia macrophylla en la región noreste de Costa Rica
(Universidad Nacional, Costa Rica, 2020-07-01)El objetivo del presente trabajo es presentar las estimaciones de mejora genética y de los costos asociados al cultivo comercial de plantaciones clonales de S. macrophylla. Para la estimación de los costos, se utilizó, ... -
Mejoras hacia una mayor ecoeficiencia en la implementación del Programa de Gestión Ambiental Institucional (PGAI) de la Municipalidad de Poás
(Universidad Nacional, Costa Rica, 2020)El presente trabajo se elaboró con el fin de aportar al cumplimiento de la legislación ambiental actual, especificamente al Programa de Gestión Ambiental Institucional (PGAI) definido en el Reglamento Nº 36499-S-MINAET, ... -
La meliponicultura como oportunidad de desarrollo local: el caso del grupo de mujeres meliponicultoras en Platanares de Pérez Zeledón y AMACOBAS
(XI Congreso Mesoamericano sobre Abejas Nativas, Puebla, México, 2019)El CINAT-UNA sistematiza el proceso vivido con grupos de mujeres meliponicultoras en la zona de Pérez Zeledón, con distintos puntos de partida y marcadas diferencias en cuanto al nivel de asociatividad y conocimiento técnico ... -
MEMORIA DE LA II FASE. Programa SALTRA. 2012-2015
(2016-02-03) -
Mercury fluxes from volcanic and geothermal sources: an update
(Geological Society, London, Special Publications, 2014-08-02)We review the state of knowledge on global volcanogenic Hg emissions to the atmosphere and present new data from seven active volcanoes (Poa´s, Rinco´n de la Vieja, Turrialba, Aso, Mutnovsky, Gorely and Etna) and two ... -
Mercury fluxes from volcanic and geothermal sources: An update
(The Geological Society of London vol. 410 263 – 285. 2015, 2015-03-01)We review the state of knowledge on global volcanogenic Hg emissions to the atmosphere and present new data from seven active volcanoes (Poás, Rincón de la Vieja, Turrialba, Aso, Mutnovsky, Gorely and Etna) and two geothermal ... -
Mesoamerican nephropathy: Geographical distribution and time trends of chronic kidney disease mortality between 1970 and 2012 in Costa Rica
(BMJ Publishing Group, 2014-06-23)Mesoamerican nephropathy is an epidemic of chronic kidney disease (CKD) unrelated to traditional causes, mostly observed in sugarcane workers. We analysed CKD mortality in Costa Rica to explore when and where the epidemic ... -
Mesoamerican nephropathy: report from the first international research workshop on men
(SALTRA / IRET-UNA, 2013-03)Durante los últimos 20 años en América Central se ha observado un incremento acelerado de la enfermedad renal crónica, que no se puede explicar con los factores de riesgo tradicionales como diabetes e hipertensión arterial. ... -
Mesoamerican Nephropathy: Report from the Second International Research Workshop on Men
(Program on Work, Environment and Health in Central America (SALTRA), 2016-08-01) -
Metodologías participativas: prevención de riesgos laborales en la agroindustria de la caña de azúcar
(SALTRA / IRET-UNA, 2007-10)En la agroindustria de la caña de azúcar los trabajadores están expuestos a gran cantidad de peligros laborales. Como parte de un programa sobre Salud y Trabajo en América Central (SALTRA), se ha desarrollado una metodología ... -
Microbial Community Structure Along a Horizontal Oxygen Gradient in a Costa Rican Volcanic Influenced Acid Rock Drainage System
(Springer, 2020)We describe the geochemistry and microbial diversity of a pristine environment that resembles an acid rock drainage (ARD) but it is actually the result of hydrothermal and volcanic influences. We designate this environment, ... -
Microbial gene exchange on microplastic particles
(University of Potsdam, Germany, 2018)Plastic pollution is ubiquitous on the planet since several millions of tons of plastic waste enter aquatic ecosystems each year. Furthermore, the amount of plastic produced is expected to increase exponentially shortly. ...