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Antifungal Saponins from the Maya Medicinal Plant Cestrum schlechtendahlii G. Don (Solanaceae)
(Wiley, 2015-12-15)
Bioassay-guided fractionation of the crude extract (80% EtOH) of the leaves of Cestrum schlechtendahlii, a plant used by Q'eqchi' Maya healers for treatment of athlete's foot, resulted in the isolation and identification ...
Ethnopharmacology of Souroubea sympetala and Souroubea gilgii (Marcgraviaceae) and identification of betulinic acid as an anxiolytic principle
(Elsevier, 2015-05)
The neotropical lianas Souroubea gilgii and Souroubea sympetala (Marcgraviaceae) were chosen for study as part of a phytochemical discovery strategy focusing on rare plant families in Central America. In participatory ...
Seguro de cosecha para plantaciones forestales de Tectona grandis en Costa Rica
(Universidad Nacional, Costa Rica, 2019-04)
El cultivo de Tectona grandis puede considerarse una excelente inversión económica, pero
podría verse afectada por los acontecimientos ambientales de los últimos años, lo que provoca el aumento de la incertidumbre en los ...
Hypoglycemic and antihyperglycemic effect of Witheringia solanacea in normal and alloxan-induced hyperglycemic rats
(Elsevier, 2011)
Witheringia solanacea is a small shrub that belongs to the Solanaceae family. The plant is used as an antidiabetic in Costa Rican herbal medicine. The aim of this study was to evaluate the hypoglycemic and antihyperglycemic ...
Análisis de la estructura y composición florística de los manglares del Corredor Biológico Costero Baulas-Conchal (CBC-BC) para la elaboración de una propuesta de conectividad ecológica que posibilite implementar acciones de manejo y conservación
(Universidad Nacional, Costa Rica, 2018)
El presente trabajo tiene como objetivo realizar un análisis que compare la estructura y composición florística de los manglares Rejoya, Zapote, Puerto Viejo y Tamarindo (Sitio RAMSAR), del Corredor Biológico Costero ...
Estado del uso del suelo y propuesta de manejo sostenible de los recursos forestales en la subcuenca de los ríos Guineal y Singri en Buenos Aires, Puntarenas
(Universidad Nacional, Costa Rica, 2018-05)
Costa Rica es un país con gran variedad de cuencas hidrográficas, las cuales se definen como la
unidad territorial natural que capta la precipitación y en ella se desarrollan las principales
actividades productivas, por ...
Carbon accumulation in the biomass and soil of different aged secondary forests in the humid tropics of Costa Rica
(Elsevier, 2011-10-15)
Efforts are needed in order to increase confidence for carbon accounts in the land use sector, especially in
tropical forest ecosystems that often need to turn to default values given the lack of precise and reliable
site ...
Carbon accumulation in aboveground and belowground biomass and soil of different age native forest plantations in the humid tropical lowlands of Costa Rica
(Universidad Nacional, Costa Rica, 2012)
Generic or default values to account for biomass and carbon accumulation in tropical forest ecosystems are generally recognized as a major source of errors, making site and species specific data the best way to achieve ...
Concentration of PM10 in the Metropolitan Area of Costa Rica, Central America: chemical composition and potential sources
(Universidad Nacional, Costa Rica, 2010)
Measurements of metals and inorganic ions were carried out on PM10. Sampling was made in five sites distributed in San José, Heredia and Belén cities. Samples were collected using Thermo Andersen PM10 high volume samplers ...
Determination of carbonyls and their sources in three sites of the metropolitan area of Costa Rica, Central America
(Springer Science+Business Media B.V, 2011-03-02)
Ambient levels of carbonyl compounds
and their possible sources were studied at three
places in the metropolitan area of Costa Rica,
including a residential, an industrial, and a com mercial downtown area with high ...