Statistical Modeling and Optimization of the Cyanidation Process of Gold Mineral by Ruiz-Córdoba, Jairo Antonio, Lopez-Cañas, Carlos Alberto, Carmona-Arango, María Eugenia, Bolívar-García, William Hernán

Subjects:

L-cysteine functionalized gold nanoparticles for Arsenic detection in water by González, Edgar E., Acuña, Yesid A., Quiroz, Ana M.

Subjects:

Family, gold and power: The plots of kinship. San Juan (1790-1815). by Fracapani Ríos, Eliana Beatriz

Characterization of copper smelter slag and recovery of residual metals from these residues by Echeverry-Vargas, Luver, Rojas-Reyes, Néstor Ricardo, Estupiñán, Edgar

Subjects:

Diagnosis and Recommendation Integrated System (DRIS) for pineapple (Ananas comosus), Honey Gold variety (MD-2) by López-Montoya, Jennifer, Fernández-Paz, Jéssica Alejandra, Vásquez, Herney Darío, Menjivar-Flores, Juan Carlos

Design of an economically feasible support for the replacement of pillars in Providencia Mine, Antioquia - Stage 1 by Montaño-Chinchilla, Claudia Yasmin, Molina-Escobar, Jorge Martin, Suarez-Burgoa, Ludger Oswaldo, Ceballos-Guerra, Elkin de Jesús

Subjects: “…gold…”

Apoyo en implementación de un sistema de gestión de calidad para el Laboratorio Químico de la Empresa Gran Colombia Gold by López Beltrán, Silvia Yamile

“…Spa: El trabajo tiene como objetivo la implementación de un sistema de gestión de calidad con base a la norma ISO 9001 con herramientas de la ISO 17025, donde se establece los requisitos necesarios, para laboratorio químico de la empresa Gran Colombia Gold, centrando en el monitoreo y control de los equipos, insumos y personal involucrado dentro del proceso en el análisis del ensayo al fuego a través de seguimientos y mediciones cuantificables.…”

Renta negativa y decrecimiento económico by Cante Maldonado, Fredy Eduardo

Lixiviation of copper content in pcb computer cards for the extraction of precious metals by Jiménez Tovar, Ginna Alejandra, Parra Pinilla, Mario

“…The recovery of gold and silver from electronic waste is a friendly alternative to the environment that can complement the industrial production of them, usually obtained from natural ores and also to promote the reduction of such waste1. …”

Methylene blue degradation over M-TiO2 photocatalysts (M= Au or Pt) / Degradación de azul de metileno sobre fotocatalizadores M-TiO2 (M = Au o Pt) by MURCIA MESA, JULIE JOSEANE, Guarín Romero, Jhonatan Ricardo, Cely Macías, Ángela Carolina, Rojas Sarmiento, Hugo Alfonso, Cubillos Lobo, Jairo Antonio, Navío Santos, José Antonio, Hidalgo López, María del Carmen

“…The highest dye degradation was obtained on Au-TiO2 photocatalyst prepared by using 120 min of deposition time, the highest effectiveness of this material in the methylene blue degradation can be mainly due to a combined effect between the presence of gold nanoparticles acting as a sink for the electrons photogenerated during the catalytic reaction and the better adsorption of the dye over the TiO2 surface partially covered by gold particles with the largest sizes.…”

Changes in soil cover in Nechí, Antioquia: An approach to the environmental impact of mining, 1986-2010 by Gómez-Rodríguez, Michael Ezequiel, Molina-Pérez, Francisco José, Agudelo-Echavarría, Diana María, Cañón-Barriga, Julio Eduardo, Vélez-Macías, Fabio de Jesús

“…Both results may be related to the type of gold exploitation in the region.…”

A comparison of direct and indirect methods for estimating leaf area in peach (Prunus persica) and plum (Prunus salicina) cultivars by Casierra-Posada, Fánor, Zapata-Casierra, Valentina, Cutler, Joseph

“…In this work, mathematical functions were applied to estimate leaf area in the plum cultivars Gold Fruly, Ecuatoriano, Methley and Horvin, and in the peach cultivars Dorado, Rubidoux, Diamante and Rey Negro. …”

International Economic Organizations in Retrospect: From Perpetual Peace to Regional Integration by Boundi Chraki, Fahd

“…The purpose of this article is to make a brief retrospective study of international economic organizations on the perpetual peace, the rise of mercantile capital and the consolidation of the monetary system, the institutionalization of the international relations through the gold standard system, and the process of economic integration after the Second World War. …”

Negative Revenue and Economic Degrowth by Cante Maldonado, Freddy Eduardo

“…Specifically, the revenues from fossil fuels, gold, and money are discussed. Finally, some guidelines are shown on how negative revenue would work. …”

Estudio de sistemas bifuncionales para la obtención de 5-(Hidroximetil)-2-Furaldehído y Acido 5-(Hidroximetil)Furan-2-Carboxílico by Aguilera Palacios, Edna Ximena

Structural aspects and vein systems relations of the Segovia-Remedios mining district by Echeverry-Castañeda, Sebastián, Cárdenas-Vera, Alán Fernando, Ordóñez-Carmona, Oswaldo, Muñoz-Aguirre, Oscar

“…Gold mineralizations northeast Antioquia are located in the eastern flank of the Otú-Pericos Fault System, within Segovia Batholith. …”

Characterization of alteration zones and intrusive phases for the prospectus "stock of Piedra Sentada" (Saint Lucia) Cauca, Colombia by Gómez-Gutiérrez, Diego Felipe, Molano-Mendoza, Juan Carlos

“…The stock presents mineralogical and hydrothermal characteristics proper of porphyritic gold-copper deposits, and it is genetically related to the emplacement of 4 intrusive pulses of variable composition between dacite-andesite. …”

Comparación de métodos directos e indirectos para la estimación del área foliar en duraznero (Prunus persica) y ciruelo (Prunus salicina) by Casierra Posada, Fanor, Zapata Casierra, Valentina, Cutler, Joseph

Microwave Frequency Characterization of Barium Titanate Films Obtained Via Sol-Gel by Marulanda-Bernal, José Ignacio, Gallo-Castrillón, Wilson Henry, Mosquera-Palacio, Diana Marybel

“…The coplanar waveguides were manufactured on alumina substrates (Al2O3) with 3 mm of gold (Au) metallization using the laser ablation technique. …”

Evaluación del sistema de ventilación de la mina El Roble by Castillo Aranguren, Daniel Ricardo