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Características del nivel del mar en los litorales costarricenses
(Ciencia y Tecnología, 12(1-2): 117-131,1988 San José, Costa Rica, 1988)
La variación del nivel del mar en los litorales costarricenses es un argumento desconocido. Son escasos los estudios que sobre este tema se han realizado y cada vez es mayor la necesidad de entender no sólo la influencia ...
Synthesis of 2-hydroxy-3-substituted naphthoquinones using the Heck reaction
(2007-06)
An efficient Heck coupling of 2-hydroxy-3-iodo-naphthoquinone with a series of electron-deficient alkenes in aqueous solution has been accomplished. The method is characterized by simple conditions and facile work-up to ...
Change in the composition of fauna associated with Pocillopora spp. (Scleractinia, Pocilloporidae) following transplantation
(2023-04-30)
Introduction: Associated fauna comprises most of the diversity of a coral reef and performs ecological functions
essential to the reef’s survival. Since Pocillopora corals harbor an important associated fauna, reef ...
Improved seasonal prediction skill of rainfall for the Primera season in Central America
(2017)
This study explores the predictive skill of seasonal rainfall characteristics for the first rainy (and planting) season, May–June, in Central America. Statistical predictive models were built using a Model Output Statistics ...
Análisis de riesgo de inundación por tsunamis en Puntarenas, Costa Rica
(2001-08)
El análisis de riesgo de inundación por tsunamis en Puntarenas, Costa Rica, revela la vulnerabilidad de la región ante sismos tsunamigénicos que pudiesen ocurrir frente al Golfo de Nicoya y en la zona de subducción de ...
External Morphology of Tagosodes orizicolus (Homoptera: Delphacidae) Revealed by Scanning Electron Microscopy
(2001)
A comprehensive analysis of the ultrastructure of the delphacid rice pest Tagosodes
orizicolus (Muir) was undertaken using scanning electron microscopy to resolve taxonomic problems in the distinction of females and nymphs ...
Presence of microplastics in six bivalve species (Mollusca, Bivalvia) commercially exploited at the Pacific coast of Costa Rica, Central America
(2022-08)
Microplastic pollution represents a serious threat to coastal marine systems. We evaluated the presence of microplastics (MPs) in 168 specimens of six commercially exploited bivalve species in the Golfo de Nicoya, Costa ...
Evaluación de fertilizantes agrícolas en la productividad de la microalga Chlorella sorokiniana
Evaluation of agricultural fertilizers on the productivity of microalgae Chlorella sorokiniana
(2016)
El objetivo del presente trabajo fue evaluar la productividad de la microalga verde Chlorella sorokiniana UTEX 1230 con fertilizantes foliares usados en la agricultura y la comparación con el medio nutritivo Kolwitz (K3). ...
Nomenclatural notes in the Pleurothallidinae (Orchidaceae): Stelis
(2015-03-25)
Nomenclatural changes are made in order to place within Stelis a series of species that belong to it in the sense of Genera Orchidacearum, and without previous available names in that genus. New species, names and combinations ...
Spectroelectrochemical Experiment for Studying Water Oxidation with a Nickel Oxide Catalyst
(2020)
Electrochemical and spectroelectrochemical techniques are very important for characterizing energy materials. In the search for new sources of renewable energy, water splitting for hydrogen production and CO2 reduction is ...