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Cambios en el periodismo y su impacto en la autonomía profesional: evidencia del estudio The Worlds of Journalism en siete países de América Latina
(2022-12-28)
Los debates en torno al futuro del periodismo posibilitaron numerosas investigaciones sobre sus cambios en el nuevo contexto hiperdigitalizado. Sin embargo, se desconoce su impacto en la libertad de prensa, específicamente ...
Effect of the non-stationarity of rainfall events on the design of hydraulic structures for runoff management and its applications to a case study at Gordo Creek watershed in Cartagena de Indias, Colombia
(MDPI AG, 2018)
The 24-h maximum rainfall (P 24h-max ) observations recorded at the synoptic weather station of Rafael Núñez airport (Cartagena de Indias, Colombia) were analyzed, and a linear increasing trend over time was identified. ...
Professional Autonomy and Structural Influences: Exploring How Homicides, Perceived Insecurity, Aggressions Against Journalists, and Inequalities Affect Perceived Journalistic Autonomy in Colombia
(2020)
Journalistic autonomy has been studied more frequently in countries with secure democracies in terms of journalists’ perceptions of freedom and independence to work in the midst of the controls, pressures, and influences ...
Quasi-static flow model for predicting the extreme values of air pocket pressure in draining and filling operations in single water installations
(2020)
Inertial models have been used by researchers to simulate the draining and filling processes in water pipelines, based on the evolution of the main hydraulic and thermodynamic variables. These models use complex differential ...
Optimal Economic–Environmental Operation of BESS in AC Distribution Systems: A Convex Multi-Objective Formulation
(2021-12-10)
This paper deals with the multi-objective operation of battery energy storage systems
(BESS) in AC distribution systems using a convex reformulation. The objective functions are CO2
emissions, and the costs of the daily ...
A quadratic convex approximation for optimal operation of battery energy storage systems in DC distribution networks
(2021-11-07)
This paper proposes a quadratic convex model for optimal operation of battery energy storage systems in a direct current (DC) network that approximates the original nonlinear non-convex one. The proposed quadratic convex ...
Exact relativistic magnetized haloes around rotating disks
(Hindawi Publishing Corporation, 2015)
The study of the dynamics of magnetic fields in galaxies is one of important problems in formation and evolution of galaxies. In this paper, we present the exact relativistic treatment of a rotating disk surrounded by a ...
Effective Perihelion Advance and Potentials in a Conformastatic Background with Magnetic Field
(Hindawi Limited, 2016)
Exact solutions of the Einstein-Maxwell field equations for a conformastatic metric with magnetized sources are investigated. In this context, effective potentials are studied in order to understand the dynamics of the ...
A preface to the 70&70 Gravity Fest
(Institute of Physics Publishing, 2017)
[No abstract available]
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.