Effect of colombian coal rank and its feeding technology on substitute natural gas production by entrained gasification by Pérez-Bayer, Juan Fernando, Barrera-Zapata, Rolando, Salazar-Jiménez, Carlos Alberto

“…Ten coals from important Colombian mines were selected. The process is modeled under thermochemical equilibrium using Aspen Plus, and its performance is evaluated in function of output parameters that include SNG heating value, Wobbe index, coal conversion efficiency, cold gas efficiency, process efficiency, global efficiency, and SNG production rate, among others. …”

General Systems Theory in the Dialogue between Peasant Knowledge from the Colombian Altiplano Cundiboyacense and Climatology/Edaphology by Lamprea Quiroga, Pedro Simón, Sanabria Marin, Rigaud

Inhibition of Colletotrichum gloeosporioides in yam crops at the Colombian Caribbean using essential oils of Curcuma longa and Zingiber officinale by Pérez Cordero, Alexander, Chamorro Anaya, Leonardo, Gomez, Jorge Mercado

Proposal of an empirical model to estimate the productivity of ‘Valencia’ orange (Citrus sinensis L. Osbeck) in the Colombian low tropics by Cleves-Leguizamo, José Alejandro, Ramírez-Castañeda, Leila Nayibe, Díaz, Eliecer David

Determination of rural economic concentration areas (RECAs) through spatial analysis for designing the Colombian economic census framework by García Vélez , Gustavo Adolfo, Durán Gil , Carlos Alberto

Colombian pedagogical thought: Martín Restrepo Mejía. A glance at his concepts of pedagogy, childhood, teacher and school by Jiménez Becerra, Absalon

“…This article is part of a nascent line of research: History of Colombian pedagogical thought. This proposal aims to recover the work of a group of intellectuals of education; whose reflections, interventions, conferences, essays, and books have contributed to the reflective exercise upon local and regional education. …”

JOSÉ FÉLIX DE RESTREPO, PROFESSOR AND POLITICIAN by Uribe, Jorge Tomás

Subjects:

Human rights: their presence in Colombian Constitutions. Part I About the analysis of content of the texts corresponding to the Constitutions of 1886 and 1991 by Sierra-Baena, Miguel Ángel, Sierra-Londoño, Alonso, Zapata-Ocampo, Óscar de Jesús

Subjects:

Fruit productivity and quality in yellow passion fruit orchards with different trellis systems and planting density in the Colombian low tropics by Cleves-Leguízamo, José Alejandro

“…Based on the Colombian technical standard (NTC 1279), weekly records of production volume were taken once production began, considering the quality grades: first, second, and industrial. …”

The representation of women and the ideals of Colombian thought in the late 19th and early 20th centuries: the metaphor of false inclusion by Suárez Reina, Adriana Yamile

Calibration of rising plate meter in prairie kikuyo grass (Pennisetum Clandestinum Hochst.Ex Chiov) in the high colombian tropics by Moreno, Diego, Fonseca, Carolina, Rodríguez-Molano, Carlos Eduardo, Pulido-Suarez, Néstor Julián

“…The Colombian Andean region, in the department of Boyacá at 2,560 meters above sea level in the Colombian dairy belt, livestock farms are characterized by the predominant perennial forage species known as Kikuyo (Pennisetum clandestinum Hochst.ex Chiov), a stoloniferous growth grass. …”

Effects of forced displacement on access to education in Colombia by Castiblanco-Castro, Carolina Andrea

Subjects:

Luis Enrique Osorio (1915-1930): Cultural Transfer and his Juvenile Mobility by Agudelo Ochoa, Ana María

Subjects:

Imaginaries of corruption in Perder es cuestión de método [Losing is a Matter of Method] by Santiago Gamboa by Avilés Arenas, Leonor

Subjects:

Cowpea Bean (Vigna unguiculata L. Walp): socioeconomic and technological perspective in the Colombian Caribbean: Economic and technological analysis of Caupí bean productio by MARTINEZ REINA, Antonio Maria, Tordecilla Zumaque, Lilibeth, Grandett Martínez, Lina María, Rodríguez Pinto, María del Valle, Cordero Cordero, Carina Cecilia

“…In this study, local technology and socioeconomic aspects of the Caupí bean production system in the producing regions of the Colombian Caribbean were characterized. To do this, structured surveys and a consensus cost workshop were applied to 30 producers selected through simple random sampling.…”

Growth analysis during the vegetative phase of five phenotypes of copoazú Theobroma grandiflorum (Willd ex Spreng) Schum. in the Colombian western Amazonia by Guerrero, Diana Carolina, Barrera, Jaime Alberto, Hernández, María Soledad, Vargas, Guillermo

Volatile chemical composition of Colombian Plectranthus amboinicus (Lour.) Spreng essential oil and its biocidal action against Tribolium castaneum (Herbst) by Jaramillo-Colorado, Beatriz Eugenia, Vega-Díaz, Rafael, Pino-Benítez, Cruz Nayibe

Diversity and physiognomic structure at two riparian forest fragments associated toward dry ecosystems at the Colombian Caribbean (Montes de María - Sucre) by Luna-Blanco, Cindy P., Álvarez-Pérez, Pedro J., Gómez, Jorge Mercado

Flocculation with Chitosan of Microalgae Native of the Colombian Plateau. (Floculación con quitosano de las microalgas nativas de la altillanura Colombiana.) by Moreno, L. M., Muñoz Prieto, E., Casanova, H.

“…Two freshwater microalgae (Chlorella sp. and Scenedesmus sp.)native from the Colombian plateau, with low/medium biomass concentrations, were selected for this study. …”

Economic Analysis of the Production of Eggplant (Solanum melongena L.) in Two Producing Areas of the Colombian Caribbean: Sucre Savannas and Sinú Valley in Córdoba by Martínez-Reina, Antonio María, Tordecilla-Zumaqué, Lilibet, Grandett-Martínez, Liliana María, Rodríguez-Pinto, María del Valle, Cordero-Cordero, Carina Cecilia, Silva-Acosta, Gabriel Ernesto, Romero-Ferrer, Jorge Luis, Correa-Álvarez, Ender Manuel, Orozco-Guerrero, Alfonso Rafael