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A Selective Ion HPLC-APCI-MS Method for the Quantification of Pentacyclic Triterpenes in an Anxiolytic Botanical Dietary Supplement for the Animal Health Market
(Natural Product Incorporation, 2019)
A new anti-anxiety dietary supplement was developed for the animal health market, by combining 2 triterpene containing botanicals, Souroubea sympetala
(Marcgraviaceae) with Platanus occidentalis (Platanaceae) A validated ...
Deciphering key processes controlling rainfall isotopic variability during extreme tropical cyclones
(2019-09)
The Mesoamerican and Caribbean (MAC) region is characterized by tropical cyclones (TCs), strong El Niño-Southern Oscillation events, and climate variability that bring unique hazards to socio-ecological systems. Here we ...
GPS PrecipitableWater Vapor Estimations over Costa Rica: A Comparison against Atmospheric Sounding and Moderate Resolution Imaging Spectrometer (MODIS)
(MDPI, 2019)
The quantification of water vapor in tropical regions like Central America is necessary to estimate the influence of climate change on its distribution and the formation of precipitation. This work reports daily estimations ...
Climate And Water Conflicts Coevolution From Tropical Development And Hydro-Climatic Perspectives: A Case Study Of Costa Rica
(American water resources Association, 2018)
Costa Rica is a nation with a vast wealth of water resources; however, recently the country has
faced water conflicts (WC) due to social, economic, legal, and political impediments in response to limited water
availability ...
Hydrogeological responses in tropical mountainous springs
(Taylor and Francis Ltd., 2018)
This study presents a hydrogeochemical analysis of spring
responses (2013–2017) in the tropical mountainous region of the
Central Valley of Costa Rica. The isotopic distribution of δ18O and
δ2
H in rainfall resulted ...
Key drivers controlling stable isotope variations in daily precipitation of Costa Rica: Caribbean Sea versus Eastern Pacific Ocean moisture sources
(Elsevier, 2016)
Costa Rica is located on the Central American Isthmus, which receives moisture inputs directly from the Caribbean Sea and the Eastern Pacific Ocean. This location includes unique mountainous and lowland microclimates, but ...
Tracking the water fingerprints of Cocos Island: A stable isotope analysis of precipitation, surface water, and groundwater
(Revista de Biología Tropical, 2016)
The use of stable isotopes of water, both δ2H and δ18O has provided novel insights in hydrological studies, ecological applications, understanding climate variability, and reconstructing paleoclimate. However, information ...
Biocomposite Films of Polylactic Acid Reinforced with Microcrystalline Cellulose from Pineapple Leaf Fibers
(Tech Science Press, 2019)
Poly(lactic acid) (PLA) composite films reinforced with
microcrystalline cellulose (MCC) extracted from pineapple leaf fibers (PALF) were prepared by a solution casting procedure. In an attempt to improve the interaction ...
First Measurements of Biogenic Hydrocarbons in Air in a Tropical Cloudy Forest, Monteverde, Costa Rica
(David Publishing Compan, 2011)
Measurements of biogenic hydrocarbons in ambient air were carried out during 2008 in a cloud y tropical forest in Monteverde, Costa Rica. Isoprene, α-pinene, β-pinene, 3-carene, d-limonene and γ-terpinene were sampled by ...
Analysis of energy transfer and ternary non-covalent filler/matrix/UV stabilizer interactions in carbon nanofiber and oxidized carbon nanofiber filled poly(methyl methacrylate) composites
(Elsevier, 2011-10-27)
Ternary non-covalent interactions between carbon nanofibers (CNFs), oxidized carbon nanofibers (ox-
CNFs), poly(methyl methacrylate) (PMMA) chains, and benzotriazole-containing UV stabilizers were
analyzed using ...