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Establecimiento de cultivos celulares para la regeneración in vitro del ayote (Cucúrbita moschata)
(2012-04-09)
Desarrollar la metodología y los protocolos experimentales para la regeneración de plantas en condiciones de cultivo in vitro, a partir de tejidos somáticos en varios genotipos de Ayote (cucúrbita moshata) de Costa Rica, ...
Widespread tropical agrowastes as novel feedstocks for biochar production: characterization and priority environmental uses
(2020)
Biochar, a carbon-rich pyrolytic product, has demonstrated positive results as a soil improver and carbon sequestration agent. Its production could be an appropriate and innovative practice for agricultural waste management ...
Dual Function of Chip Calls Depending on Changing Call Rate Related to Risk Level in Territorial Pairs of White-Eared Ground-Sparrows
(2017-03)
Different mechanisms have been proposed for encoding information into vocalizations: variation of frequency or temporal characteristics, variation in the rate of vocalization production, and use of different vocalization ...
Latrodectism in Costa Rica
(2017)
Se reporta un accidente causado por la araña Latrodectus geometricus, incluida en el grupo conocido como “viudas negras”, en Costa Rica. El accidente le ocurrió a una mujer de 27 años vecina de la ciudad de Cartago, en su ...
Recomendaciones para mejorar el manejo de comederos artificiales para colibríes
Recommendations to improve the management of artificial hummingbird feeders
(2019)
El uso de comederos artificiales para alimentar a las aves es una práctica extendida y de uso generalizado principalmente en sitios turísticos, tales como hoteles de montaña, parques naturales, y jardines privados. En el ...
Flower consumption, ambient temperature and rainfall modulate drinking behavior in a folivorous-frugivorous arboreal mammal
(2021)
Water is vital for the survival of any species because of its key role in most physiological
processes. However, little is known about the non-food-related water sources exploited
by arboreal mammals, the seasonality of ...
Complex phylogeographic patterns indicate Central American origin of two widespread Mesoamerican Quercus (Fagaceae) species
(2017)
The northern Neotropical region is characterized by a heterogeneous geological and climatic history. Recent studies have shown contrasting patterns regarding the role of geographic elements as barriers that could have ...
Bryophyte and lichen biomass and nitrogen fixation in a high elevation cloud forest in Cerro de La Muerte, Costa Rica
(2021-01)
Cloud forests have been found to lose more nitrogen in stream discharge than they gain from atmospheric deposition. They also support a large diversity and biomass of tree epiphytes, predominately composed of cryptogams. ...
Borrelidin Induces the Unfolded Protein Response in Oral Cancer Cells and Chop-Dependent Apoptosis
(2015)
Oral squamous cell carcinoma (OSCC) is the most common cancer affecting the oral cavity, and US clinics will register about 30,000 new patients in 2015. Current treatment modalities include chemotherapy, surgery, and ...
Plecoptera
(2010-12)
El orden Plecoptera (“Plecos”=“Plegar”, “Pteros”=“Alas”), también conocido como moscas de la piedra, es un grupo relativamente pequeño de insectos. Las ninfas de la región centroamericana se reconocen fácilmente por tener ...