Published: 2015-08-07

Differences water harness and longevity rates in the peninsula of nicoya of Guanacaste and the otrher districts

Darner A. Mora-Alvarado, Carlos Felipe Portuguez-Barquero, Nuria Alfaro-Herrera, Michael Hernández-Miraulth

pág. 3-14

Geovisión: una infraestructura abierta de datos espaciales

Carlos A. Campos-Vargas, Rodolfo Mora-Zamora, Andrés Segura-Castillo

pág. 15-24

Multimeter as Alternative Measurement System in the Potentiometric Titrations

José de Jesús Pérez-Saavedra, Sonia Rincón-Arce, Miguel Ángel Cisneros-Valladares

pág. 25-44

2014 Stopwatch Interlaborator y Comparison

Oscar Fallas-Cordero, Isabel Castro-Blanco, Harold Sánchez-Vargas

pág. 64-73

Environmental education for water conservation through a statistical analysis of variables

Cristian Moreira-Segura, Freddy Araya-Rodríguez, Claudia Charpentier-Esquivel

pág. 74-85