Browsing Facultad de Ciencias de la Tierra y el Mar by Title
Now showing items 588-607 of 1076
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In situ toxicity and ecological risk assessment of agro-pesticide runoff in the Madre de Dios River in Costa Rica
(SpringerEuCheMS Division of Chemistry and the Environment, 2016-10-18)The River Madre de Dios (RMD) and its lagoon is a biodiversity rich watershed formed by a system of streams, rivers, channels, and a coastal lagoon communicating with the Caribbean Sea. This basin sustains a large area of ... -
In Vitro Culture of the Anxiolytic Plant, Souroubea Sympetala
(Universidad Nacional, Costa Rica, 2020)A protocol for the in vitro culture of the anxiolytic medicinal plant Souroubea sympetala (Marcgraviaceae) was developed, representing one of the first in vitro cultures for the family. This species was previously very ... -
In vitro propagation of Albizia guachapele, Cedrela odorata, Platymiscium pinnatum and Guaiacum sanctum
(Bangladesh Association for Plant Tissue Culture and Biotechnology (BAPTC&B), 2008)In Costa Rica Albizia guachapele, Cedrela odorata, Platymiscium pinnatum and Guaiacum sanctum are important plant species in both economic and ecological terms and their wood is precious and reported to be highly resistant ... -
La incandescencia en el Volcán Turrialba (Nota técnica 01 de noviembre 2016)
(Universidad Nacional, Costa Rica, 2016)La incandescencia en los volcanes es tal vez uno de los elementos más visuales y llamativos a larga distancia. Observada en las noches o con un horizonte oscuro la luminosidad que desprenden los materiales y gases calientes ... -
Incidence of childhood cancer in Costa Rica, 2000–2014: An international perspective
(Elsevier, 2018-10-18)Background: Estimating childhood cancer incidence globally is hampered by a lack of reliable data from lowand middle-income countries. Costa Rica is one of the few middle-income countries (MIC) with a long-term high quality ... -
Incidence of childhood cancer in Costa Rica, 2000–2014: An international perspective
(Elsevier, 2018-10)Background: Estimating childhood cancer incidence globally is hampered by a lack of reliable data from low- and middle-income countries. Costa Rica is one of the few middle-income countries (MIC) with a long-term high ... -
Incidencia política desde el Programa SALTRA
(2015-12-18) -
Incidencia y distribución de Impatiens necrotic spot orthotospovirus (INSV) e Iris yellow spot orthotospovirus (IYSV) en el cultivo de cebolla (Allium cepa L.) en Zarcero, Costa Rica
(Universidad Nacional, Costa Rica, 2022-11)Los Orthotospovirus (Orden: Bunyavirales, familia: Tospoviridae) y sus insectos vectores, trips (Thysanoptera: Thripidae), representan una amenaza para la agricultura, debido a que ocasionan severas pérdidas económicas. ... -
Indicadores de importación de plaguicidas por trabajador y área agrícola como herramienta para el monitoreo de peligros para el ambiente y la salud en Costa Rica
(2013-08-22)Costa Rica es uno de los países a nivel mundial con el mayor índice de importación de plaguicidas por habitante y por área agrícola (WRI 2011); para el año 2010 se importaron más de 13, 8 millones de kilogramos de ingrediente ... -
Indicadores de proximidad a servicios urbanos en la ciudad de Heredia
(Universidad Nacional, Costa Rica., 2018)Esta investigación trata sobre la cuantificación del acceso que tienen los residentes de la ciudad de Heredia a algunos servicios básicos en la ciudad, a partir de la distancia a la que viven, calculando que porcentaje de ... -
Indicadores de salud ocupacional y ambiental en América Central
(SALTRA / IRET-UNA, 2014-04)La experiencia de trabajo del Programa SALTRA mediante los “perfiles de salud ocupacional” ha evidenciado la necesidad de contar con indicadores de salud ocupacional y ambiental para medir el progreso y mejora continua en ... -
Indigenous children living nearby plantations with chlorpyrifos-treated bags have elevated 3,5,6-trichloro-2-pyridinol (TCPy) urinary concentrations
(Elsevier, 2012)The US Environmental Protection Agency voluntary phased-out residential use of chlorpyrifos in 2001. In contrast, in Costa Rica, chlorpyrifos-treated bags are increasingly used to protect banana and plantain fruits from ... -
Indigenous Ex Situ Conservation of Q'eqchi' Maya Medicinal Plant Resources at the Itzamma Garden-Indian Creek, Belize, Central America
(Springer Science, 2012-12-27)The Itzamma Garden and Medicinal Plant Project is a collaborative effort focused on identifying traditionally important plants used by the Q'eqchi' Maya of southern Belize. The Garden represents a cornerstone of the project ... -
Infiltración y redistribución de agua en perfiles de la zona no saturada en la cuenca alta del río Páez, Cartago
(Universidad de Costa Rica, 2022)En Costa Rica, la entrada del agua al suelo y su movimiento dentro de él ha sido poco estudiado. Esta entrada de agua puede estudiarse en un espacio geográfico claramente definido como lo es la cuenca hidrográfica. Es por ... -
Influence of human activities on some medium and large-sized mammals’ richness and abundance in the Lacandon Rainforest
(Journal for Nature Conservation, 2016-12)We evaluated the influence of six human activities (related variables) on the richness and abundance of large and medium-sized mammals in the southern portion of the Lacandon Rainforest, including protected and non-protected ... -
Influence of Physico-Chemical Factors on the Efficiency and Metabolite Profile of Adult Pinus radiata D. Don Bud Organogenesis
(Universidad Nacional, Costa Rica, 2022-09-10)Genetic improvement programs for conifer forest species face the challenge of propagating elite individuals with superior characteristics in the present landscape of climate change; the problem is focused on the fact that ... -
Influence of sea turtle nesting on hunting behavior and movements of jaguars in the dry forest of northwest Costa Rica
(Blackwell Publishing Ltd, 2020-11)Jaguars (Panthera onca) are opportunistic predators that prey on large profitable prey items, such as sea turtles at nesting beaches. Here, we use jaguar and sea turtle trackcount surveys, combined with satellite telemetry ... -
Informal employment and health status in Central America
(Springer Nature, 2015-07-24)Background: Informal employment is assumed to be an important but seldom studied social determinant of health, affecting a large number of workers around the world. Although informal employment arrangements constitute a ... -
Informal markets of forest products: characterization and methods for its analysis
(International Union of Forest Research Organizations, 2019)The informal sector is an important source of income for millions of families. It has been estimated that about 60 % of the employed population worldwide are in the informal sector; and specifically, the employment of the ...