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

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

נושאים: "...Concentration of power..."

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

נושאים: "...Minimum inhibitory concentration..."

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

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