Universidad Tecnológica de Bolivar UTB (Colombia): últimos ingresos
Mostrando ítems 261-280 de 11668
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Galvis, L. A., Rodríguez, G., & Ovallos, S. (2021). Quality of work life in Cartagena, Barranquilla, and Santa Marta. Cuadernos de Economía, 40(82), 307-338.
(Cartagena de Indias, 2021)The main cities of the Colombian Caribbean have recently reached the lowest unemployment figures in the country. However, they exhibit the highest informality rates. The objective of this paper is to analyse the situation ... -
Gender differences in math and reading: Performance, self-concept and expectations
(Cartagena de Indias, 2020)Previous studies show gender differences in math and language performance, mainly in adolescents. In this study, we aim to evaluate gender differences in self-concept, subjective value, expectations and academic performance, ... -
Generative Adversarial Networks for Cell Segmentation in Human Corneal Endothelium
(Cartagena de Indias, 2022)We generate synthetic images with a generative adversarial network (GAN) model trained with image patches from specular microscopy corneal endothelial cells. Preliminary results show it may be a suitable approach for ... -
Girls Do Not Sweat: the Development of Gender Stereotypes in Physical Education in Primary School
(Cartagena de Indias, 2021)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 ... -
Guidance and support of women in engineering programs at Universidad Tecnologica de Bolivar
(Cartagena de Indias, 2023)Gender equality is one of the sustainable development goals. In STEM areas, it is a requirement to expand and improve women's careers. To increase the participation of women in STEM it is not enough to attract more young ... -
Heterogeneous Photocatalytic Pilot Plant for Cyanide Decontamination: A Novel Solar Rotary Photoreactor
(Cartagena de Indias, 2022)During the gold extraction in opencast mining, many hazardous substances, such as cyanide, are spilled into the water bodies. This study’s aim was to develop a novel rotary photocatalytic TiO2-based reactor to remove cyanide ... -
Recursive Convex Model for Optimal Power Flow Solution in Monopolar DC Networks
(Cartagena de Indias, 2022-10-05)This paper presents a new optimal power flow (OPF) formulation for monopolar DC networks using a recursive convex representation. The hyperbolic relation between the voltages and power at each constant power terminal ... -
Highway Planning Trends: A Bibliometric Analysis
(Cartagena de Indias, 2022)An efficient highway infrastructure network is a determining factor in promoting the socio-economic development of countries and regions. Highway planning activities are highly important because their results ensure that ... -
Hybrid Materials Based on Nanoparticles Functionalized with Alkylsilanes Covalently Anchored to Epoxy Matrices
(Cartagena de Indias, 2022)In this work, the surface modification of zinc oxide nanoparticles (ZnO-NPs) with 3-glycidyloxy-propyl-trimethoxysilane (GPTMS) was investigated. The ZnO-NPs were synthesized using the physical method of continuous arc ... -
Recursive convex approximations for optimal power flow solution in direct current networks
(Cartagena de Indias, 2022-08-12)The optimal power flow problem in direct current (DC) networks considering dispersal generation is addressed in this paper from the recursive programming point of view. The nonlinear programming model is transformed into ... -
Identification and Quantification of Bioaerosols in a Tropical Coastal Region: Cartagena de Indias, Colombia
(Cartagena de Indias, 2018) -
II Workshop on Modeling and Simulation for Science and Engineering
(Cartagena de Indias, 2020)II Workshop on Modeling and Simulation for Science and Engineering (II WMSSE) was a conference conducted at Universidad Tecnológica de Bolívar, in the city of Cartagena de Indias, Colombia, on September 24, 25 and 26, ... -
Recovery of (Z)-13-Docosenamide from Industrial Wastewater and Its Application in the Production of Virgin Polypropylene to Improve the Coefficient of Friction in Film Type Applications
(Cartagena de Indias, 2023-01-09)Additives play an important role in the production of plastic materials through their application, in which the mechanical, thermal, and physical properties of polymers are improved, making them last longer and be more ... -
Impact of emotional states on the effective range of electric vehicles
(Cartagena de Indias, 2023)Over the last decade, a large interest in reducing transportation dependence on fossil fuels as well as the cost reduction in battery technologies, have driven the electric cars market uptake. However, information is scarce ... -
Implementation model of Digital Transformation projects in Boutique Hotels
(Cartagena de Indias, 2020)Digital transformation has become an imperative of competitiveness for companies. However, there is a knowledge gap on the subject mainly in countries like Colombia and more in industry sectors where the use of information ... -
Implementation of an Annual Goal´s Plan for the improvement of scientific production in a Colombian university. Positives and negatives aspects
(Cartagena de Indias, 2020)We present in the following investigation, a detailed descriptive analysis of the high-impact scientific production (defined this as all research indexed in the Scopus) database of a Colombian private university, the ... -
Rapid Filling Analysis with an Entrapped Air Pocket in Water Pipelines Using a 3D CFD Model
(Cartagena de Indias, 2023-02-21)A filling operation generates continuous changes over the shape of an air–water interface, which can be captured using a 3D CFD model. This research analyses the influence of different hydro-pneumatic tank pressures and ... -
Indexing of Colombian psychology journals in Spanish scientific databases: an exploratory study
(Cartagena de Indias, 2021)An exploratory work that analyzes the relevance of the principal Colombian psychology journals [those that are indexed in the most important national (Publindex) and international (Web of Science and Scopus) indicators], ... -
Influence of Family Communication on Perceived Stress during the COVID-19 Pandemic
(Cartagena de Indias, 2021)Objective: This descriptive-correlational study analyzed the relationship between family communication and perceived stress during the Covid-19 pandemic in Colombia. Methods: The participants were 800 Colombians, between ... -
Influence of survey engagement and multiple-choice heuristics in the estimation of the value of a statistical life
(Cartagena de Indias, 2023)Estimating the value of non-market goods, such as reductions in mortality risks due to traffic accidents or air pollution, is typically done using stated choice (SC) data. However, issues with potential estimation biases ...