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Region growing segmentation of ultrasound images using gradients and local statistics
(SPIE, 2017)This paper describes a region growing segmentation algorithm for medical ultrasound images. The algorithm starts with anisotropic diffusion filtering to reduce speckle noise without blurring the edges. Then, region growing ... -
Relational Agreement Measures for Similarity Searching of Cheminformatic Data Sets
(Institute of Electrical and Electronics Engineers Inc., 2016)Research on similarity searching of cheminformatic data sets has been focused on similarity measures using fingerprints. However, nominal scales are the least informative of all metric scales, increasing the tied similarity ... -
Relationship between magnetic rigidity cutoff and chaotic behavior in cosmic ray time series using visibility graph and network analysis techniques
(Cartagena de Indias, 2024-01-18)Cosmic rays are highly energetic particles originating from astrophysical events outside the Solar System. In this study, we analyze the time series of cosmic ray flux measured by neutron detectors at 16 monitoring stations ... -
Relaxed convex model for optimal location and sizing of DGs in DC grids using sequential quadratic programming and random hyperplane approaches
(Elsevier Ltd, 2020)This report addresses the problem of optimal location and sizing of constant power sources (distributed generators (DGs)) in direct current (DC) networks for improving network performance in terms of voltage profiles and ... -
Religion as a coping stRategy in univeRsity students. a theoRetical Review
(Cartagena de Indias, 2022-07-01)This scientific article presents an analysis of the existing documentation obtained in Scopus (2012-2020) about the religious coping strategies possessed by university students and their usefulness. The study has as objective ... -
La religión como estrategia de afrontamiento en los estudiantes universitarios : una revisión teórica
(Cartagena de Indias, 2022-05-01)Se presenta en este artículo científico un análisis de la documentación existente obtenida en Scopus (2012-2020) acerca de las estrategias de afrontamiento religioso que poseen los estudiantes universitarios y su utilidad. ... -
Removing Omissions and Inconsistencies from the ISA 5.1 Narratives of Industrial Processes
(Cartagena de Indias, 2020-12-25)This work is concerned with the modelling of industrial processes, described by Pipe and Instrumentation Diagrams (P&ID) and narratives as specified in the norm ISA 5.1, by Interpreted Petri Nets (IPN). In a previous work, ... -
Renewable energy production and demand dataset for the energy system of Colombia
(Elsevier Inc., 2020)During the last decades, an increasing number of studies have focused their attention on the development of energy system models in order to facilitate sustainable energy planning strategies and understand the technical ... -
Reply to: Effectiveness of a visual noise warning system on noise levels in a surgical ICU
(Lippincott Williams and Wilkins, 2020) -
Representación de la historia de España por medio de la filatelia. Estudio de los sellos diseñados por Gallego y Rey
(Cartagena de Indias, 2020)Se presenta un análisis pormenorizado de todos los sellos postales españoles elaborados por los humoristas gráficos Gallego y Rey, los cuales pretendieron reflejar la historia española. Este peculiar tipo de producto ... -
Representation of the spanish's history through the philately. Study of the stamps designed by gallego & rey
(Cartagena de Indias, 2020-10-01)The research presents a detailed analysis of all Spanish postage stamps created by the humorists Gallego and Rey, which intended to reflect the Spanish history. This peculiar kind of philatelic product, based on the ... -
Representations of ancient hellenist culture in the videogames civilization (1991-2018)
(Cartagena de Indias, 2020-01-31)The present scientific article deals with the representations of the ancient Hellenic world that a saga of videogames (of the genre of turn-based strategy) of enormous popularity and historical trajectory as Civilization ... -
Research on energy indexes of cogenerated plants with gas turbines and heat recuperator steam generators
(2012)The main objective of this paper is the experimental investigation of the energy indexes of a cogeneration plant with Gas Turbines (GT) and Heat Recuperator Steam Generators (HRSGs) while changing its operational load. The ... -
Resilience in the academic context. A phenomenological proposal about the exceed one’s self
(Cartagena de Indias, 2021-05)Introduction: This article describes the results of a phenomenological study, which aimed to understand the dynamics of resilience in students who have been in an academic risk situation in three universities at Cartagena ... -
Resources and strategies for teaching statistics and data analytics in higher education
(Cartagena de Indias, 2022-06)The purpose of this study is to present a literature review analysis on the teaching of statistics and data analytics in higher education. The assessment includes examining the role played by specific factors as mediators ... -
Restoration of retinal images with space-variant blur
(2014)Retinal images are essential clinical resources for the diagnosis of retinopathy and many other ocular diseases. Because of improper acquisition conditions or inherent optical aberrations in the eye, the images are often ... -
Resultados de aprendizaje y mecanismos de evaluación en los programas académicos de educación superior en Colombia
(Cartagena de Indias, 2022-02-01)El propósito de este estudio es diseñar un sistema de resultados de aprendizaje y determinar su importancia en los programas de educación superior en Colombia. La investigación fue racional propositiva y se contrastan el ... -
Rethinking environmental news coverage through Agenda-Setting and the normative function of attributes
(Cartagena de IndiasCampus TecnológicoComunicación Social, 2023-05-07)Examinamos los atributos sustantivos y afectivos dominantes en 358 noticias relacionadas con la gestión del agua y los residuos en Colombia durante cinco años. Los resultados revelaron que los textos estudiados se centraron ... -
Rethinking professional autonomy: Autonomy to develop and to publish news in Mexico and Colombia
(SAGE Publications Ltd, 2017)Professional autonomy has usually been defined in terms of journalists' perceptions of their control over their work vis-à-vis organizational supervisors. Using surveys of journalists in Colombia and Mexico, we identify ... -
Retinal image analysis oriented to the clinical task
(Universitat Autonoma de Barcelona, 2014)
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.