Writing the Abstract in Biology: A Review gan Cárcamo Morales, Benjamín

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Strengthening of variational thinking through a mediated intervention with the use of ICT for ninth grade students gan Martínez-López, Leonardo Geiner, Gualdrón-Pinto, Elgar

Pynciau: “...variational thinking; didactic sequence; ICT mediation; variation; change....”

Simulation of a common source multilevel inverter as frequency variator for induction motors gan Pabón-Fernández, Luis David, Díaz-Rodríguez, Jorge Luis, Pardo-García, Aldo

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Genotype-environment interaction and guata potato yield (Solanum tuberosum L.) in the Department of Nariño (Colombia) gan Santacruz-Benavides, Astrid Viviana, Delgado-Gualmatán, Wilmer Libey, Lagos-Burbano, Tulio César, Duarte-Alvarado, David-Esteban

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Physicochemical variability of agricultural soils in the bulb onion (Allium Cepa L.) crop of the irrigation and drainage district Usochicamocha in Boyacá, Colombia gan Forero-Pineda, Nicolás, Serrano-Cely, Pablo-Antonio, Forero-Ulloa, Fabio-Emilio, Gómez-Palacio, Andrés Mauricio, Acero-Cristancho, José Luis

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Determining of thermal time and base temperature during the reproductive phase of the Japanese plum in the tropical Andes gan Orjuela-Angulo, Mayerlin, Balaguera-Lopez, Helber Enrique, Fischer, Gerhard

Pynciau: “...Minimum coefficient of variation...”

Development of a physical simulation method of steel welds for fatigue crack propagation studies, on heat affected zones gan Atehortua-López, Daniel Fernando, Catacolí-Pereira, Ramiro, Aguilar-Castro, Yesid, Sánchez-Sthepa, Héctor, Sabirov, Ilchat

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Variational thinking mediated with algebraic tiles and virtual manipulators gan Ordóñez-Ortega, Odair, Gualdrón-Pinto, Elgar, Amaya-Franky, Germán

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Physiological performance of nine cacao (Theobroma cacao L.) genotypes under the shadow of three forest species in Santander, Colombia gan Agudelo-Castañeda, Genaro Andrés, Cadena-Torres, Jorge, Almanza-Merchán, Pedro José, Pinzón-Sandoval, Elberth Hernando

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Problem-solving, Numerical and Variational Thinking in Elementary School: A Review gan Barrera, Hugo Fernando

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