Vol. 33 No. 1: Continous publication

Published: 2025-07-21

Original Research Papers

Original article: Municipal wastewater treatment plants as sources of microplastic pollution

Elsa María de Fátima Reyes Morales, Flor Mayarí Barreno Ortíz, Jaqueline Graciela Rodriguez Samol, Joseline Mishelle López Par
Relationship between body mass index and serum vitamin D levels in Guatemalan adults

Erika Viktoria Poitán Us, Krista Zaret Valladares Dominguez, Karla Rosángel Cordón-Arrivillaga, Cecilia Liska de Leon
Quality control of a brand of echinacea root herbal teas commercialized in Costa Rica using the RTCA 11.03.56:09

Dayanna Marín Sánchez, Arlene Loria Gutierrez, Jeimy Blanco Barrantes, Juan José Mora Román

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Scientific Essays

Scientific essay: Exploring qualitative methodologies that contribute to strengthening the scientific research process

Wener Armando Ochoa Orozco

Case Reports

Case report: Olive-backed Euphonia (Euphonia gouldi) with deformed beak in Guatemala

Daniel Tenez