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

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

Sujets: “…Concentration of power…”

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

Sujets: “…Minimum inhibitory concentration…”

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

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