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The Colombian press and the San José galleon: A political and legal interest but not numismatic
(Ediciones Hecate, 2018)
This article presents the low interest of the Colombian press in the light of numismatic heritage found in 2015 in the wreck of the San José galleon, warship sunk in Barú (near Cartagena de Indias) in 1708. The opinions ...
A no-hair theorem for black holes in f(R) gravity
(Institute of Physics Publishing, 2018)
In this work we present a no-hair theorem which discards the existence of four-dimensional asymptotically flat, static and spherically symmetric or stationary axisymmetric, non-trivial black holes in the frame of f (R) ...
Wage and subjective conditions assessing tool applied for the quality of work: Case of the manufacturing sector of the Colombian Caribbean region
(International Business Information Management Association, IBIMA, 2018)
Wage and Subjective Conditions Assessing Tool was designed and applied as a tool for assessing psychosocial components of job safety in a sample of 518 employees from different companies in the manufacturing sector of the ...
Optimal power dispatch of DGS in DC power grids: A hybrid gauss-seidel-genetic-algorithm methodology for solving the OPF problem
(World Scientific and Engineering Academy and Society, 2018)
This paper addresses the optimal power flow (OPF) problem in direct current (DC) power grids via a hybrid Gauss-Seidel-Genetic-Algorithm methodology through a master-slave optimization strategy. In the master stage, a ...
Differential diagnosis of dengue and chikungunya in colombian children using machine learning
(Springer Verlag, 2018)
Dengue and chikungunya are vector borne diseases endemic in tropical countries around the world, with very similar clinical presentation, which makes it hard for physicians to tell them apart. Here we propose the use of ...
Organizational cynicism - An exploration analysis-case: Workers in the city of Cartagena de Indias (Colombia)
(Revista Espacios, 2018)
Organizational cynicism is a fact that is present and negative within organizations. In this sense, the present study aims to approach the phenomenon of cynicism in organizations from the study of cynical attitudes composed ...
Black hole-wormhole transition in (2+1)-dimensional Einstein-anti-de Sitter gravity coupled to nonlinear electrodynamics BLACK HOLE-WORMHOLE TRANSITION in (2+1)- ⋯ PEDRO CAÑATE and NORA BRETON
(American Physical Society, 2018)
In this paper we present two results in (2+1) gravity coupled to nonlinear electrodynamics. First we determine the general form of the electromagnetic field tensor in (2+1) gravity coupled to nonlinear electrodynamics in ...
Motion of test particles in a magnetized conformastatic background
(World Scientific Publishing Co. Pte. Ltd., 2018)
A class of exact conformastatic solutions of the Einstein-Maxwell field equations is presented in which the gravitational and electromagnetic potentials are completely determined by a harmonic function only. The motion of ...
Incentivizing alternative fuel vehicles: the influence of transport policies, attitudes and perceptions
(Springer New York LLC, 2018)
This paper aims to evaluate the influence of policies, attitudes and perceptions when incentivizing alternative fuel vehicles. The impact of possible policies such as gasoline taxes increases, purchase price subsidies, tax ...
Control of a SMES for mitigating subsynchronous oscillations in power systems: A PBC-PI approach
(Elsevier Ltd, 2018)
This paper proposes a methodology to control the active and reactive power of a superconducting magnetic energy storage (SMES) system to alleviate subsynchronous oscillations (SSO) in power systems with series compensated ...
Universidad Tecnológica de Bolívar - 2017 Institución de Educación Superior sujeta a inspección y vigilancia por el Ministerio de Educación Nacional. Resolución No 961 del 26 de octubre de 1970 a través de la cual la Gobernación de Bolívar otorga la Personería Jurídica a la Universidad Tecnológica de Bolívar.