Listar Artículos de investigación por título
Mostrando ítems 184-203 de 248
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Physical-chemical study of anthracene selective oxidation by a Fe(III)-phenylporhyrin derivative
(BarranquillaSede Norte, 2019-10-30)In this work, we studied the anthracene oxidation by hydroxyl radicals. Hydroxyl radical was generated by reaction of 5,10,15,20-tetrakis(4-carboxyphenyl)porphyrin Fe (III) (TPPFe) with hydrogen peroxide under visible ...
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Phytochemical Screening of Callus and Cell Suspensions Cultures of Thevetia peruviana
(BarranquillaQuímicaSede Norte, 2020-02-13)Thevetia peruviana is an ornamental shrub grown-up in many tropical region of the world. This plant produces secondary metabolites with biological properties of interest for the pharmaceutical industry. The objective was ...
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Pilot-Scale Anaerobic Digestion of Pig Manure with Thermal Pretreatment: Stability Monitoring to Improve the Potential for Obtaining Methane
(BarranquillaIngeniería MecánicaSede Norte, 2022-08-13)Monitoring and controlling stability in anaerobic digestion (AD) systems are essential, since it allows to obtain information that helps to take corrective actions in case of deviations in the system and to guarantee a ...
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Planificación estratégica situacional: Un proceso metódico-práctico
(BarranquillaSede Norte, 202-01-20)La planificación situacional asume la crítica de la planificación tradicional, por su incapacidad de producir cambios, siendo de auto referencia del hombre de acción, que en última instancia debe resolver problemas ...
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Predicting the Adsorption of Amoxicillin and Ibuprofen on Chitosan and Graphene Oxide Materials: A Density Functional Theory Study
(BarranquillaQuímicaSede Norte, 2021-05-13)The occurrence, persistence, and accumulation of antibiotics and non-steroidal antiinflammatory drugs (NSAIDs) represent a new environmental problem due to their harmful effects on human and aquatic life. A suitable absorbent ...
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Preparation of chitosan/poly(Vinyl alcohol) nanocomposite films incorporated with oxidized carbon nano-onions (multi-layer fullerenes) for tissue-engineering applications
(BarranquillaSede Norte, 2019-11-01)Recently, tissue engineering became a very important medical alternative in patients who need to regenerate damaged or lost tissues through the use of scaffolds that support cell adhesion and proliferation. Carbon ...
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Prevalence of dengue antibodies in healthy children and adults in different Colombian endemic areas
(BarranquillaSede Norte, 2019-05-23)Objectives: Colombia is a dengue hyperendemic country; however, the prevalence of antibodies against dengue in the general population including the inhabitants of rural areas is unknown. This study aimed to determine the ...
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PRIMERA APROXIMACIÓN A LA FAUNA FLEBOTOMÍNEA (PSYCHODIDAE: PHLEBOTOMINAE) DEL DEPARTAMENTO DE ATLÁNTICO
(BarranquillaSede Norte, 2019-09-26)Dentro del género Lutzomyia algunas especies son vectores de la enfermedad llamada leishmaniasis, la cual tiene implicaciones en la salud pública, desarrollando diferentes manifestaciones clínicas como leishmaniasis ...
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Production and characterization of activated carbon from coal for gold adsorption in cyanide solutions
(BarranquillaIngeniería MecánicaSede Norte, 2019-06-06)En este trabajo se produjeron carbones activados utilizando carbón mineral como materia prima procedente de siete zonas carboníferas colombianas. La activación física se efectuó en dos etapas: una etapa de carbonización ...
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Pronombres en wayuunaiki y español: una mirada contrastiva
(BarranquillaMaestría en LingüísticaSede Norte, 2022-02-11)La literatura relacionada con estudios contrastivos entre lenguas nativas de Colombia y el español es muy escasa. En aras de contribuir al cambio de esta realidad, este estudio ofrece un análisis contrastivo de los ...
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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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Recent synthetic efforts in the preparation of 2- (3,4)-alkenyl (aryl) quinoline molecules towards anti-kinetoplastid agents
(BarranquillaQuímicaSede Norte, 2019-12-19)Leishmaniasis, Chagas disease and African sleeping sickness have been considered some of the most important tropical protozoan afflictions. As the number of drugs currently available to treat these human illnesses is ...
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Reduction of Postharvest Quality Loss and Microbiological Decay of Tomato “Chonto” (Solanum lycopersicum L.) Using Chitosan-E Essential Oil-Based Edible Coatings under Low-Temperature Storage
(BarranquillaIngeniería AgroindustrialSede Norte, 2020-08-13)The tomato (Solanum lycopersicum L.) is one of the many essential vegetables around the world due to its nutritive content and attractive flavor. However, its short shelf-life and postharvest losses affect its marketing. ...
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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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Registrar la fiesta: cultura audiovisual LGBTI en Barranquilla
(BarranquillaSede Norte, 2022-01-17)En este artículo se analiza, a partir de un corpus audiovisual seleccionado por el autor, la realidad de las prácticas travestis, transformistas y drag queens en el Carnaval de Barranquilla, que ahora parecen gozar de ...
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Removal of minocycline from high concentrated aqueous medium by nonliving and lipid-free Chlorella sp. biomass
(BarranquillaQuímicaSede Norte, 2021-12-16)This work evaluated the removal of minocycline (MC) by the nonliving Chlorella sp. biomass (NLB) and modified by a lipid extraction procedure (LEB). Both biomasses have different morphology (NLB: globular-like; LEB: flakes ...
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Removal of the direct navy-blue dye on modified coffee bean
(BarranquillaSede Norte, 2019-10-19)The presence of dyes in water bodies inhibits the penetration of light, affecting the flora and fauna of these ecosystems, which is why, greater efforts are made to eliminate them before being poured. This study allowed ...
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Research Trends of Waste Heat Recovery Technologies: A Bibliometric Analysis from 2010 to 2020
(BarranquillaIngeniería MecánicaSede Norte, 2022-09-27)Waste heat recovery (WHR) technologies have become vital to promote efficient operation in energy systems. The present investigation presents a bibliometric analysis of the research trends in the WHR field in the last ...
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Resistencia antibiótica: el papel del hombre, los animales y el medio ambiente
(BarranquillaSede Norte, 2019-05-30)Los microorganismos, especialmente las bacterias, están distribuidos por todo el mundo, desde el suelo, los mares y los ríos hasta el sistema digestivo de los animales y los seres humanos; por lo tanto, las bacterias ...
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Resolución de problemas en química: descifrando métodos, errores, obstáculos, temáticas y aplicabilidad usando N-Vivo
(BarranquillaIngeniería IndustrialSede Norte, 2022-02-15)El alcance de esta investigación fue identificar los métodos, los errores y los obstáculos reconocidos por los estudiantes, y las temáticas y la aplicabilidad que los profesores le otorgan a la resolución de problemas en ...