Artículos de investigación: Envíos recientes
Mostrando ítems 21-40 de 248
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Synthesis and fabrication of films including graphene oxide functionalized with chitosan for regenerative medicine applications
(BarranquillaQuímicaSede Norte, 2021-06-12)Graphene oxide (GO) has recently gained attention as a scaffold reinforcing agent for tissue engineering. Biomechanical and biological properties through a synergistic effect can be strengthened when combined with other ...
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Limited evidence of coupling between above and belowground functional traits in tropical dry forest seedlings
(BarranquillaBiologíaSede Norte, 2021-06-30)Introduction: Water availability is one of the main factors determining the distribution of woody species in the tropics. Although the functional mechanisms that determine the species tolerance to water deficit have been ...
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Transcritical Bifurcations and Algebraic Aspects of Quadratic Multiparametric Families
(BarranquillaMatemáticasSede Norte, 2021-01-05)This article reveals an analysis of the quadratic systems that hold multiparametric families therefore, in the first instance the quadratic systems are identified and classified in order to facilitate their study and ...
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Matrix Effects of the Hydroethanolic Extract of Calyces of Physalis peruviana L. on Rutin Pharmacokinetics in Wistar Rats Using Population Modeling
(BarranquillaFarmaciaSede Norte, 2021-02-28)Rutin is the rutinose conjugate of quercetin. It presents several biological activities and is the major flavonoid in the hydroalcoholic extract of the calyces of Physalis peruviana L. It also shows hypoglycemic activity ...
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Gestión de la experiencia de las unidades principales de internacionalización en las instituciones de educación superior
(BarranquillaMaestría en EducaciónSede Norte, 2020-06-24)El objetivo del presente estudio es analizar la gestión de la experiencia de las unidades principales de internacionalización en las instituciones de educación superior de Barranquilla (Colombia). Se utiliza un enfoque ...
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Ecopathogenic complexes of American trypanosomiasis in endemic areas of Venezuela: Diagnosis and variability of Trypanosoma cruzi
(BarranquillaBiologíaSede Norte, 2019-08-21)Background & objectives: Trypanosoma cruzi, the causative agent of American trypanosomiasis, has been reported in 180 mammalian species and 154 triatomines species of Neotropic. This is a clonal parasite with variable ...
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Transperiferismo, necropolítica y sufrimiento social. Etnografía experimental sobre las condiciones de vida de inmigrantes venezolanos en el Caribe colombiano
(BarranquillaLicenciatura en Ciencias SocialesSede Norte, 2020-06-21)Objetivos En este trabajo exploramos la crueldad y el sufrimiento que experimentan inmigrantes venezolanos que habitan en un asentamiento irregular llamado Villa Caracas, en la periferia de Barranquilla. Nuestro objetivo ...
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On Soft b-w-Open Sets
(BarranquillaMatemáticasSede Norte, 2020-06-13)In this paper, it used the notions of soft ω-open sets to introduce and study the concepts of soft b-ω-open sets. Moreover, some of their properties are shown. Furthermore, the concepts of soft b-T1 and soft b-T2 spaces ...
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Fractional discrete vortex solitons
(BarranquillaFísicaSede Norte, 2021-02-09)We examine the existence and stability of nonlinear discrete vortex solitons in a square lattice when the standard discrete Laplacian is replaced by a fractional version. This creates a new, effective site-energy term, and ...
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Prospects for beyond the Standard Model physics searches at the Deep Underground Neutrino Experiment
(BarranquillaFísicaSede Norte, 2020-11-10)The Deep Underground Neutrino Experiment (DUNE) will be a powerful tool for a variety of physics topics. The high-intensity proton beams provide a large neutrino flux, sampled by a near detector system consisting of a ...
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Performance assessment and economic perspectives of integrated PEM fuel cell and PEM electrolyzer for electric power generation
(BarranquillaIngeniería MecánicaSede Norte, 2020-12-07)The study presents a complete one-dimensional model to evaluate the parameters that describe the operation of a Proton Exchange Membrane (PEM) electrolyzer and PEM fuel cell. The mathematical modeling is implemented in ...
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Influence of Compression Rings on the Dynamic Characteristics and Sealing Capacity of the Combustion Chamber in Diesel Engines
(BarranquillaIngeniería MecánicaSede Norte, 2021-02-11)Internal combustion engines are widely implemented in several applications; however, they still face significant challenges due to the sealing capacity of the compression rings. Gas leakage through the crankcase, also known ...
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Diverging functional strategies but high sensitivity to an extreme drought in tropical dry forests
(BarranquillaMaestría en Ciencias AmbientalesSede Norte, 2020-12-14)Extreme drought events have negative effects on forest diversity and functioning. At the species level, however, these effects are still unclear, as species vary in their response to drought through specific functional ...
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Effect of Pretreatment with Low-Frequency Ultrasound on Quality Parameters in Gulupa (Passiflora edulis Sims) Pulp
(BarranquillaIngeniería QuímicaSede Norte, 2021-02-16)The Gulupa (Passiflora edulis f. edulis Sims) is an expression of South America’s tropics’ biodiversity, and a source of B vitamins and amino acids. It is a climacteric export fruit for which it is necessary to incorporate ...
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Intervención didáctica tecnológica para el estudio de las secciones cónicas basada en el potencial semiótico
(BarranquillaLicenciatura en MatemáticasSede Norte, 2021-02-15)El objetivo del presente estudio es identificar, analizar y caracterizar los registros semióticos en el estudio de las secciones cónicas con profesores en formación. La metodología con enfoque mixto, diseño basado en ...
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Packham’s Triumph Pears (Pyrus communis L.) Post-Harvest Treatment during Cold Storage Based on Chitosan and Rue Essential Oil
(BarranquillaIngeniería AgroindustrialSede Norte, 2021-01-30): Pears (Pyrus communis L.) cv. Packham’s Triumph are very traditional for human consumption, but pear is a highly perishable climacteric fruit with a short shelf-life affected by several diseases with a microbial origin. ...
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Chromatographic analysis of phytochemicals in the peel of Musa paradisiaca to synthesize silver nanoparticles
(BarranquillaSede Norte, 2021-05-21)This research work usedMusa paradisiaca(banana) peels as a natural solvent,assorted with the precursorAgNO3(10 mM) to perform the green synthesis of silvernanoparticles. The phytochemical components present in theMusa ...
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Regenerative Organic Rankine Cycle as Bottoming Cycle of an Industrial Gas Engine: Traditional and Advanced Exergetic Analysis
(BarranquillaIngeniería MecánicaSede Norte, 2020-06-27)This investigation shows a traditional and advanced exergetic assessment of a waste heat recovery system based on recuperative ORC (organic Rankine cycle) as bottoming cycle of a 2 MW natural gas internal combustion ...
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A comparative study of the energy, exergetic and thermo-economic performance of a novelty combined Brayton S-CO2-ORC configurations as bottoming cycles
(BarranquillaIngeniería MecánicaSede Norte, 2020-07-10)This paper presents a comparative study on the energy, exergetic and thermo-economic performance of a novelty thermal power system integrated by a supercritical CO2 Brayton cycle, and a recuperative organic Rankine ...
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Localized vortex beams in anisotropic Lieb lattices
(BarranquillaFísicaSede Norte, 2020-07-01)We address the issue of nonlinear modes in a two-dimensional waveguide array, spatially distributed in the Lieb lattice geometry, and modeled by a saturable nonlinear Schr odinger equation. In particular, we analyze the ...
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