Investigaciones: Envíos recientes
Mostrando ítems 761-780 de 1465
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Phonetic Detection for Hate Speech Spreaders on Twitter
(Cartagena de Indias, 2021-09-24)Nowadays, hate messages have become the object of study on social media. Efficient and effective detection of hate profiles requires various scientific disciplines, such as computational linguistics and sociology. Here, ... -
The rider behavior questionnaire to explore associations of motorcycle taxi crashes in Cartagena (Colombia)
(Cartagena de Indias, 2021-08-16)Objective: This study aimed to identify the association between behavioral factors and crashes of motorcycle taxi riders using the Motorcycle Rider Behavior Questionnaire (MRBQ). Methods: This study was a cross-sectional ... -
Multi-agent CHANS: BDI Farmer Intentions and Decision Making
(Cartagena de Indias, 2021-09-25)This paper extends previous works on multi-agent-based simulation models of Coupled Human and Natural Systems (CHANS), by introducing a farmer agent model capable of interact with environmental, economic, and spatial ... -
Detection and removal of dust artifacts in retinal images via sparse-based inpainting
(Cartagena de Indias, 2021-09-06)Dust particle artifacts are present in all imaging modalities but have more adverse consequences in medical images like retinal images. They could be mistaken as small lesions, such as microaneurysms. We propose a method ... -
A predictive model for the missing people problem
(Cartagena de Indias, 2021-03-01)The disappearance of people is a multidimensional phenomenon, in which several aspects must be considered. It affects people’s security perception and consumes police resources in its treatment. Therefore, does exists an ... -
Perfil del docente inclusivo de básica primaria: orientado a la transformación del proceso formativo en las instituciones educativas oficiales del distrito de Cartagena-Colombia
(Cartagena de Indias, 2021-01-06)El objetivo del presente estudio es definir el perfil del docente inclusivo de básica primaria de instituciones educativas del Distrito de Cartagena, Colombia. Participaron 91 docentes pertenecientes a seis escuelas oficiales. ... -
On the mathematical modeling for optimal selecting of calibers of conductors in DC radial distribution networks: An MINLP approach
(Cartagena de Indias, 2021-01-29)This paper addresses the problem of optimal conductor selection in direct current (DC) distribution networks with radial topology. A nonlinear mixed-integer programming model (MINLP) is developed through a branch-to-node ... -
Prediction of motorcyclist traffic crashes in Cartagena (Colombia): development of a safety performance function
(Cartagena de Indias, 2021-04-05)Motorcyclists account for more than 380 000 deaths annually worldwide from road tra c accidents. Motorcyclists are the most vulnerable road users worldwide to road safety (28% of global fatalities), together with cyclists ... -
Impact of Environmental Pollution in the Sustainability of Architectural Heritage: Case Study from Cartagena of India, Colombia
(Cartagena de Indias, 2021-12-24)Limited studies have been carried out in emerging nations on the correlation among the environmental pollution, economic factors, and architectural heritage. For this reason, this research presents an assessment of ... -
Girls Do Not Sweat: the Development of Gender Stereotypes in Physical Education in Primary School
(Cartagena de Indias, 2020-06-27)Despite efforts towards gender equality, from an early age, girls practice sport less than boys. Explaining this is paramount to psychology. Stereotypes about gender-appropriate behaviour play a key role in doing physical-sports ... -
High impedance fault modeling and location for transmission line
(Cartagena de Indias, 2021-04-07)A fault in a power system generates economic losses, security problems, social problems and can even take human lives. Therefore, it is necessary to have an efficient fault location strategy to reduce the exposure time ... -
Stabilization of MT-HVDC grids via passivity-based control and convex optimization
(Cartagena de Indias, 2021-04-30)This paper presents a model for stabilizing multi-terminal high voltage direct-current (MT-HVDC) networks with constant power terminals (CPTs) interfaced with power electronic converters. A hierarchical structure of ... -
¿Qué es y hacia dónde va la fotografía?
(Cartagena de Indias, 2021-07-01) -
Análisis de la relación entre la conducta de bullying y las funciones ejecutivas en niños y adolescentes escolarizados
(Cartagena de Indias, 2020-12)Si bien es conocida la existencia de asociaciones significativas entre las Funciones Ejecutivas (FFEE) y la agresión, el papel de las FFEE en el contexto del acoso escolar o bullying rara vez se ha examinado en poblaciones ... -
Optimal Selection of Conductors in Three-Phase Distribution Networks Using a Discrete Version of the Vortex Search Algorithm
(Cartagena de Indias, 2021-07-18)In this study, a new methodology is proposed to perform optimal selection of conductors in three-phase distribution networks through a discrete version of the metaheuristic method of vortex search. To represent the problem, ... -
La implementación de la ley de memoria histórica en la ciudad de la Coruña
(Cartagena de Indias, 2020-11-02)Se presenta en el siguiente artículo un estudio exploratorio sobre la aplicación en una ciudad española de tamaño medio de la denominada Ley de la Memoria Histórica (creada en el año 2007). A través de la heráldica y la ... -
Assessment of Steady and Unsteady Friction Models in the Draining Processes of Hydraulic Installations
(Cartagena de Indias, 2021-07-08)The study of draining processes without admitting air has been conducted using only steady friction formulations in the implementation of governing equations. However, this hydraulic event involves transitions from laminar ... -
Integrating perceptions of safety and bicycle theft risk in the analysis of cycling infrastructure preferences
(Cartagena de Indias, 2021-06-30)Cycling infrastructure development is an effective but expensive urban policy to encourage people to use bicycles. Although people usually prefer infrastructure with high cycling priority, authorities in some cities have ... -
Application of the Multiverse Optimization Method to Solve the Optimal Power Flow Problem in Direct Current Electrical Networks
(Cartagena de Indias, 2021-08-04)This paper addresses the optimal power flow problem in direct current (DC) networks employing a master–slave solution methodology that combines an optimization algorithm based on the multiverse theory (master stage) and ... -
Optimal Location and Sizing of DGs in DC Networks Using a Hybrid Methodology Based on the PPBIL Algorithm and the VSA
(Cartagena de Indias, 2021-08-11)In this paper, we propose a master–slave methodology to address the problem of optimal integration (location and sizing) of Distributed Generators (DGs) in Direct Current (DC) networks. This proposed methodology employs a ...
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.
