Results 151 to 160 of about 850,191 (349)

Aggregation and Insurance Mortality Estimation [PDF]

open access: yes
One goal of government health insurance programs is to improve health, yet little is known empirically about how important such government interventions can be in explaining health transitions.
Kristine A. Gonzalez   +2 more
core  

Subduction-zone structure and magmatic processes beneath Costa Rica constrained by local earthquake tomography and petrological modelling [PDF]

open access: yes, 2017
A high-quality data set of 3790 earthquakes were simultaneously inverted for hypocentre locations and 3-D P-wave velocities in Costa Rica. Tests with synthetic data and resolution estimates derived from the resolution matrix indicate that the velocity ...
Hacker, B.   +3 more
core  

A global review of the conservation status of true quails (Families Odontophoridae and Phasianidae)

open access: yesWildlife Biology, EarlyView.
Understanding the conservation status of species is imperative to stem global declines. To better inform conservation, we summarized the global conservation status of New World (Family Odontophoridae) and Old World (Family Phasianidae) true quail species.
Kathan Bandyopadhyay, Jeffrey L. Beck
wiley   +1 more source

Caracterización de la calidad del agua de la Quebrada Sanatorio en Tierra Blanca ubicada en una zona agrícola de la provincia de Cartago y sus implicaciones para la salud pública#

open access: yesO Mundo da Saúde, 2012
Se monitoreó la calidad del agua de la Quebrada Sanatorio (Tierra Blanca, Cartago, Costa Rica), durante abril, junio, agosto y octubre de 2011. Se establecieron tres puntos de muestreo utilizando una metodología de estratificación. Se realizó un análisis
Juan Salvador Chin Pampillo   +4 more
doaj  

Cicada as a food for mammals: a global review and implications for mammal behaviour and populations

open access: yesWildlife Biology, EarlyView.
Cicadas (Hemiptera: Cicadidae) are among the most important insect prey for many vertebrate predators, including birds and mammals, owing to their large size and high nutritional value. Although the ecological roles of cicadas as prey for birds have been well documented, the interactions between mammals and cicadas are relatively unknown.
Kanzi M. Tomita
wiley   +1 more source

Metates and Hallucinogens in Costa Rica

open access: yesPapers from the Institute of Archaeology, 1991
Metates are grinding stones on which corn and other substances are ground with hand-held stones called manos. A clue that grinding stones were associated with mushroom rituals is, for example, provided by a tripod metate from NW Costa Rica belonging to the period of the 2nd or 3rd century AD.
openaire   +4 more sources

Optimizing fecal DNA collection and storage techniques for noninvasive genetic sampling of river otters

open access: yesWildlife Society Bulletin, EarlyView.
This study compared 2 non‐invasive DNA collection methods for river otters and found that fecal swabbing consistently outperformed DETs buffer storage across both temperate and tropical environments. Swabbing yielded higher PCR and genotyping success rates while reducing genotyping errors, particularly when sampling anal jelly in tropical conditions ...
Manuel Santiago‐Plata   +5 more
wiley   +1 more source

Patogenicidad y frecuencia de especies de Fusarium asociadas a la planta y al fruto de piña en Costa Rica

open access: yesAgronomía Mesoamericana
Introducción. Costa Rica es uno de los mayores productores y exportadores de piña a nivel mundial, sin embargo, la producción y el manejo poscosecha se dificultan por problemas fitosanitarios ocasionados por hongos del género Fusarium.
María Díaz-Gutiérrez   +4 more
doaj   +1 more source

On Birds collected in Costa Rica.

open access: yesProceedings of the Zoological Society of London, 1878
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +3 more sources

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