| Table of contents Ciencia en Desarrollo vol.13 no.1 Tunja Jan./June 2022 Articles | | | | · Hopf Bifurcation in the Study of Synchronous Motor Stability Mesa, Fernando; Correa, Germán; Barba-Ortega, J.
| | | | · Modeling of the Friction Factor in Pressure Pipes Using Bayesian Learning Neural Networks Ladino Moreno, Edgar Orlando; García-Ubaque, César Augusto; García-Vaca, María Camila
| | | | · Effects of the Incoherent Pumping in the Linear Optical Susceptibility of an Spherical Nanostructure Portacio, A. A.; Cano, L. E.; Correa, K. D.
| | | | · Time Study of Earth's Magnetic Field in Colombia: Fúquene Geomagnetic Observatory Hernández González, Hernán Darió; Calderon Rincón, John; Chacón Cardona, César Alexander
| | | | · Optical, Electrical, Structural, and Morphological Properties of KAl4Si2O12/Mg3Si2O9/Fe2O3 Clay Mineral from Machado Mountain Region, Tarairá, Colombia Galíndez, E. F.; Rojas-Venegas, J. A.; Sánchez, D.; Téllez, D. A. Landínez; Roa-Rojas, J.
| | | | · Effect of the Aluminum Concentration on the Second Harmonic Generation in a Quantum Dot of AsGa / AsGa 1-x Al x Montes, A.; Cano, L. E.; Portacio, A. A.
| | | | · Analysis of the Random Effects Estimator of a Hierarchical Model With Heavy Rojas Mora, Jessica María; Ramírez Guevara, Isabel Cristina
| | | | · Comparison of Some Methods to Estimate the Cox Proportional Hazards Model for Interval-Censored Data Bustos-Giraldo, Olga A.; Jaramillo-Elorza, Mario C.; Lopera-Gómez, Carlos M.
| | | | · A Hybrid System Base on Silica-Alumina and Keggin Heteropolyacid as Catalyst in the Suitable 2-(2-Furyl)-Chromones Palermo, V.; Ruiz, D.; Sathicq, A.; Vázquez, P.; Romanelli, G.
| | | | · Bioactivity of Hydroxyapatite Obtained From Eggshell for Potential use as Bone Cement Gárcia-Sánchez, Karen; Quiñones, Iber J.; Gutierrez-M., Jose Oscar; Camargo-Amado, Ruben; Basante-Romo, Mónica J.
| | | | · Analysis of the Technological Maturity Cycle of Antibacterial and Self-Cleaning Surfaces Based on TiO2/ZnO Sinisterra, Santiago; Camargo-Amado, Rubén; Triviño, Diego; Machuca-Martínez, Fiderman
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