Design, construction and commissioning of a laboratory type drum type magnetic concentrator por 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 por Tesche Roa, Paula, González, Javier

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

Materias: “…Concentration of power…”

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

Materias: “…Minimum inhibitory concentration…”

Review. Applications of whey and its proteins derivatives por 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 por 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 por Estupiñán Corredor, Wilmer Alejandro

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