Design, construction and commissioning of a laboratory type drum type magnetic concentrator per Forero-Pinilla, Álvaro, Alarcón-Sichacá, Héctor Hely, Acosta-Hernández, Yesid Rolando

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Political resistance in the saltpetre works of Chacabuco (1973-1975), Antofagasta region, Chile per Tesche Roa, Paula, González, Javier

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Presidentialism in times of pandemic: Ecuador per Torres Maldonado, Ángel Eduardo

Matèries: “…Concentration of power…”

Potential use of electrochemically synthesized silver nanoparticles on rice panicle blight pathogen, Burkholderia glumae per Chaves-Bedoya, Giovanni, Padilla, Hilda Angélica, Ortiz-Rojas, Luz Yineth, Peña-Rodríguez, Gabriel

Matèries: “…Minimum inhibitory concentration…”

Review. Applications of whey and its proteins derivatives per Aponte Colmenares, Angela Patricia, Prieto Suárez, Gloria Astrid, Castellanos Báez, Yeimy Tatiana, Muvdi Nova, Carlos de Jesús, Yurievich Sakharov, Iván

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Business Groups in Ecuador: a Historical, Economic and Political Analysis per Vanoni Martínez, Giuseppe, Rodriguez Romero, Carlos

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Efecto en fuerza explosiva de miembros inferiores de un plan por modelamiento en pandemia para jugadoras de Fútbol-Sala FIFA per Estupiñán Corredor, Wilmer Alejandro

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