Statistical Evaluation of the Levels of Mercury Detected in Billfish in Costa Rica, for 2003-2013

by Rodríguez-Yáñez, Javier, Piedra-Marín, Gilberto
Published 2016

Utilización de Microsoft Excel en un taller de orbitales atómicos con docentes de ciencias exactas y naturales

by Piedra Marín, Gilberto, Vargas González, Xinia, Castillo Rodríguez, Kenneth
Published 2016

Physico-chemical assessment of sediments of Tamarindo estuary and its tributaries, Guanacaste, Costa Rica

by Bravo Chaves, Francela María, Piedra Marín, Gilberto, Piedra Castro, Lilliana
Published 2012

Nutrient uptake by leaf

by Murillo Castillo, Ritma Giordana, Piedra Marín, Gilberto, León, Ramón G.
Published 2013

Chemical reageants management in laboratories of the Universidad Nacional

by Mora Barrantes, José Carlos, Benavides Ramírez, David, Piedra Marín, Gilberto
Published 2013

Chemical and technological hazards of the Great Metropolitan Area of Costa Rica

by Sánchez-Murillo, Ricardo, Piedra-Marín, Gilberto, León-Coto, Sandra, Solís-Delgado, Alexander
Published 2013

ASSESSMENT OF HYDROCARBON LEVELS IN MARINE SEDIMENTS COLLECTED FROM THE GULF OF NICOYA REGION LOCATED BETWEEN PUNTA MORALES AND COSTA DE PAJAROS AND THEIR POSSIBLE ORIGIN (BIOGENIC...

by Rodríguez-Chaves, Daniela, Saravia-Arguedas, Ana, Pacheco-Urpí, Oscar, Piedra-Marín, Gilberto
Published 2015

Análisis de las estrategias de enseñanza utilizadas por docentes de educación secundaria costarricense en el tema configuración electrónica 

by Piedra-Marín, Gilberto, Pereira Chaves, José, Cervantes Altamirano, Adrián, López Rodríguez, Merilin
Published 2025

Effect of the city of Limón marine residual waters outfall discharges on water quality and phytoplankton abundance and diversity in the surroundings of Uvita Island, Costa Rica

by Muñoz-Simon, Nelson, Piedra-Castro, Liliana, Jiménez-Montealegre, Ricardo, Pereira-Chaves, José, Guevara-Mora, Meyer, Piedra-Marín, Gilberto
Published 2020

Student Camps to Promote Scientific Vocations in STEM: The Quimi Camp Case

by Sandoval-Barrantes, Manuel, Vega-Baudrit, José Roberto, Piedra-Marín, Gilberto, Syedd-León, Randall, Rivera-Álvarez, Andrea, Bermúdez Campos, Katya, Coy Herrera, Ricardo
Published 2023