Listar Artículos de investigación por título
Mostrando ítems 147-166 de 248
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Mamíferos del departamento del Atlántico, Colombia
(BarranquillaSede Norte, 2020-07-16)We presents the first taxonomic list of wild mammals for the Atlántico department, in the Caribbean coast of Colombia. We recorded 92 species distributed in 11 orders, 37 families, and 74 genera, which represents 16.5 % ...
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Matrix effects of the hydroethanolic extract and the butanol fraction of calyces from Physalis peruviana L. on the biopharmaceutics classification of rutin
(BarranquillaFarmaciaSede Norte, 2020-02-09)Objectives The Biopharmaceutics Classification System (BCS) categorizes active pharmaceutical ingredients according to their solubility and permeability properties, which are susceptible to matrix or formulation effects. ...
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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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Measurement of neutrino-induced neutral-current coherent π0 production in the NOvA near detector
(BarranquillaSede Norte, 2020-07-09)The cross section of neutrino-induced neutral-current coherent π0 production on a carbon-dominated target is measured in the NOvA near detector. This measurement uses a narrow-band neutrino beam with an average neutrino ...
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Medidas de Capacidad en una Práctica Artesanal de Pinar del Río, Barranquilla, Atlántico
(BarranquillaLicenciatura en MatemáticasSede Norte, 2022-06-23)Introducción: El problema de investigación consistió en la identificación de medidas de capacidad, involucradas en los procesos de la práctica artesanal de la elaboración del bollo de mazorca en el barrio Pinar del Río en ...
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Metabolismo urbano: Reflexiones sobre el crecimiento urbano y el consumo energético
(BarranquillaSede Norte, 2019-01-24)RESUMEN/ El estudio de los impactos que los distintos modelos de ciudad ejercen sobre los ecosistemas es una tendencia marcada en las reflexiones actuales del urbanismo. Sobre esta base y a partir de una reflexión teórica ...
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Methodological Approach to Improve Energy Efficiency by Concentrating Operation Points an Electrical Transformer Maintenance Company
(BarranquillaIngeniería MecánicaSede Norte, 2021-05-28)In recent years, companies have developed strategies to improve the environment through the efficient use of their energy resources (Rodríguez Toscano et al., 2019). This practice has been widely used in the goods ...
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Methylene Blue Photodegradation under Visible Irradiation on Ag-Doped ZnO Thin Films
(BarranquillaSede Norte, 2019-09-04)This study synthesized and characterized Ag-doped ZnO thin films. Doped ZnO powders were synthesized using the sol-gel method, and thin films were fabricated using the doctor blade technique. The Ag content was determined ...
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Método de control estadístico multivariante para valorar las dimensiones de calidad en una empresa de lavado de tanques industriales
(BarranquillaIngeniería IndustrialSede Norte, 2020-10-01)Esta investigación propone un método para valorar las dimensiones de calidad del servicio en una empresa de lavado de tanques industriales, articulando una carta de control y un nuevo indicador de calidad multivariante. ...
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Mid-Infrared Laser Spectroscopy Detection and Quantification of Explosives in Soils Using Multivariate Analysis and Artificial Intelligence
(BarranquillaQuímicaSede Norte, 2020-06-20)A tunable quantum cascade laser (QCL) spectrometer was used to develop methods for detecting and quantifying high explosives (HE) in soil based on multivariate analysis (MVA) and artificial intelligence (AI). For ...
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Monitoreo y control del rendimiento de las dimensiones de calidad de un centro de atención del servicio en una institución de educación superior
(BarranquillaIngeniería IndustrialSede Norte, 2020-06-01)En esta investigación se diseñó un método de control para el rendimiento de las dimensiones de calidad de un centro de atención del servicio en una institución de educación superior. Se apoyó en los planteamientos teóricos ...
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Multiple Linear Regression Model Applied to the Projection of Electricity Demand in Colombia
(BarranquillaSede Norte, 2019-10-10)The exigencies as soon as to competitiveness and productivity have influenced in the energetic consumption and the demand of electrical energy in Colombia, reason why at the present time it is of much interest and utility ...
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Nanocomposite Films of Chitosan-Grafted Carbon Nano-Onions for Biomedical Applications
(BarranquillaSede Norte, 2020-03-07)The design of sca olding from biocompatible and resistant materials such as carbon nanomaterials and biopolymers has become very important, given the high rate of injured patients. Graphene and carbon nanotubes, for ...
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Neutrino interaction classification with a convolutional neural network in the DUNE far detector
(BarranquillaSede Norte, 2020-11-10)The Deep Underground Neutrino Experiment is a next-generation neutrino oscillation experiment that aims to measure CP-violation in the neutrino sector as part of a wider physics program. A deep learning approach based ...
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Neutrino Oscillation Analysis of 217 Live Days of Daya Bay and 500 Live Days of RENO
(BarranquillaSede Norte, 2020-01-22)We present a neutrino oscillation analysis of two particular data sets from the Daya Bay and RENO reactor neutrino experiments aiming to study the increase in precision in the oscillation parameters sin22θ13 and the effective ...
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NEW BIPARAMETRIC FAMILIES OF APOSTOL-FROBENIUS-EULER POLYNOMIALS OF LEVEL m
(BarranquillaMatemáticasSede Norte, 2020-10-27)We introduce two biparametric families of Apostol-Frobenius-Euler polynomials of level m. We give some algebraic properties, as well as some other identities which connect these polynomial class with the generalized ...
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NEW GENERALIZED APOSTOL-FROBENIUS-EULER POLYNOMIALS AND THEIR MATRIX APPROACH
(BarranquillaSede Norte, 2019-01-25)In this paper, we introduce a new extension of the generalized ApostolFrobenius-Euler polynomials H [m−1,α] n (x; c, a; λ; u). We give some algebraic and differential properties, as well as, relationships between this ...
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New records of eight species of ground beetles (Coleoptera, Carabidae) from Colombia
(BarranquillaBiologíaSede Norte, 2020-09-01)We report new records of eight species of ground beetles (Coleoptera, Carabidae) from Colombia originated from recent field trips and from museum specimens: Amblygnathus suturalis Putzeys, 1845 (Atlántico), Bembidion ...
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Non-Automatic Weighing Instruments Calibration: Parametric Methods for Outliers Assessments
(BarranquillaIngeniería MecánicaSede Norte, 2020-06-10)In the experimental calibration processes, several error of measure can be obtained. Usually, these values are called as outliers. The outliers impact in the instruments’ metrological reliability and, consequently, in the ...
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Nuevos registros y estado del conocimiento de heterobranquios marinos (Mollusca: Gastropoda) en el departamento del Atlántico, Caribe colombiano
(BarranquillaLicenciatura en Ciencias NaturalesSede Norte, 2022-06-28)La subclase Heterobranchia es una de las más diversas entre los moluscos gasterópodos; está presente en ambientes marinos, de agua dulce y terrestres, e incluye babosas intersticiales, nudibranquios, lapas intermareales, ...