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An application based on the concept of gamification to promote cultural tourism in the municipality of San Diego in the department of Cesar, Colombia
No full textThe Department of Cesar is a highly important tourist attraction in Colombia where most of its visitors go on vacation, recreation, and leisure. Despite being positioned as a high tourist attraction, it has been possible to identify that there is a lack of public-private articulation, as well as the participation of the academy in the development of projects with a greater regional impact, weaknesses in the working capital of the sector, little entrepreneurship, and innovation around the generation of new tourism products. That is why it is necessary to strengthen and expand the coverage of national or regional programs, projects, and initiatives on these routes, corridors, and infrastructure projects proposed, the development of information systems that allow assertive decision-making, as well as the pertinent regulation by the sustainability framework. One of the sectors that require support and strengthening is the tourism sector which requires support to strengthen and boost the economy. The purpose of this article is to show the development of an application based on gamification that allows the cultural strengthening of the region, which allowed appropriation processes to be generated in the community that is the object of intervention of the department and economic revitalization
An intelligent approach to determine component volume percentages in a symmetrical homogeneous three-phase fluid in scaled pipe conditions
No full textOver time, the accumulation of scale within the transmission pipeline results in a decrease in the internal diameter of the pipe, leading to a decline in efficiency and energy waste. The employment of a gamma ray attenuation system that is non-invasive has been found to be a highly precise diagnostic technique for identifying volumetric percentages across various states. The most appropriate setup for simulating a volume percentage detection system through Monte Carlo N particle (MCNP) simulations involves a system consisting of two NaI detectors and dual-energy gamma sources, namely 241Am and 133Ba radioisotopes. A three-phase flow consisting of oil, water, and gas exhibits symmetrical homogenous flow characteristics across varying volume percentages as it traverses through scaled pipes of varying thicknesses. It is worth mentioning that there is an axial symmetry of flow inside the pipe that creates a homogenous flow pattern. In this study, the experiment involved the emission of gamma rays from one end of a pipe, with photons being absorbed by two detectors located at the other end. The resulting data included three distinct features, namely the counts under the photopeaks of 241Am and 133Ba from the first detector as well as the total count from the second detector. Through the implementation of a two-output MLP neural network utilising the aforementioned inputs, it is possible to accurately forecast the volumetric percentages with an RMSE of under 1.22, regardless of the thickness of the scale. The minimal error value ensures the efficacy of the proposed technique and the practicality of its implementation in the domains of petroleum and petrochemicals
Design of an integrated automation and control system using Petri nets: case study
No full textIntegrated automation and control system (IACS) based on the discrete events control using Petri nets (PN) that encompasses the design, analysis, and validation of models of industrial pumping systems are not commonly used. Our case study is the design, simulation, and initial implementation of a supervision system using GHENeSys PN and EROS software at the "San Juan" Pumping Station in Santiago de Cuba, Cuba. These tools allow describing the models of the states of the local automatic process and the operation of the Supervisor to consider the functions of Preventive Maintenance and Alarm Treatment. The IACS starts from the MatLab simulation of main control loops and later uses the
GHENeSys extended hierarchical net to model a modularly structured integrated automation system that responds to synchronized functional demands. This methodology has the advantages of full hierarchical modularity from local control to production management, various modular verification and validation tools, and full IEC61131 compatibility. This reduces design errors and implementation time with increased integration efficiency
Design of a supply chain-based production and distribution system based on multi-stage stochastic programming
No full textSupply chains are one of the key tools in optimizing production and distribution simultaneously. However, information uncertainty is always a challenge in production and distribution management. The main purpose of this paper is to design a two-echelon supply chain in a multi-cycle state and in conditions of demand uncertainty. The task includes determining the number and location of distribution centers, planning capacity for active distribution centers, and determining the amount of shipments between different levels so that the total costs of the chain are minimized. Uncertainty is applied through discrete scenarios in the model and the problem is formulated by multi-stage stochastic programming method in the form of a mixed integer linear model. The results acquired using two indicators called VMS and VSS demonstrated that modeling the supply chain design problem with the multi-stage stochastic approach can result in significant costs reduction. Plus, utilizing mathematical expectation can generate misleading results, therefore resulting in the development of supply chain designs incapable of satisfying demand due to its overlooked limitations
Critical rare earth metal adsorption onto expanded vermiculite: accurate modeling through response surface methodology and machine learning techniques
No full textThe circular economy of rare earth metals (REM), such as dysprosium, is essential for a sustainable future in clean energy and high-tech fields. Adsorption has gained attention to recover and reintegrate REM into the productive chain; however, accurate modeling of adsorptive processes still needs to be addressed, which delays further scale-up studies. Thus, this paper studied the adsorption of Dy on expanded vermiculite and applied novel empirical methods, such as artificial neural networks (ANN) and adaptive neuro-fuzzy inference system (ANFIS), and the classical response surface methodology (RSM) for modeling of dysprosium recovery as a function of adsorbent size, mass, and pH of the solution, variables often ignored in the mathematical modeling of adsorption. In our work, the effect of each operational parameter on Dy removal efficiency was examined by the RSM approach, in which only the adsorbent dosage and pH were the significant factors. So, ANFIS with two input membership functions (Gaussian type) was the most accurate procedure to predict and model the dysprosium removal efficiency (R2 = 0.99681). Also, vermiculite removed dysprosium with high efficiency (99.2%) under the best experimental conditions, at pH around 3.5 and adsorbent mass of 0.64 g, indicating an effective process optimization. The loaded vermiculite, after the adsorption, was characterized by textural and thermal properties that confirmed the stability of the material. Thus, according to basic operational parameters, accurate modeling of the Dy adsorption on expanded vermiculite (a low-cost, available, and non-toxic material) can improve adsorption technology's maturity to reconcentrate and recover rare earth metals
Análisis de las decisiones de la superintendencia de sociedades sobre el levantamiento del velo corporativo entre el año 2010- 2020
No full textEl presente trabajo de grado se centró en el análisis de las decisiones de la Superintendencia de Sociedades respecto al levantamiento del velo corporativo en Colombia durante el periodo 2010- 2020, siendo el objetivo principal de esta investigación identificar los criterios utilizados para conceder o denegar la desestimación de la personalidad jurídica de las sociedades de capital en Colombia, a fin de determinar el alcance de esta figura legal, reconocer los criterios jurídicos empleados por la Superintendencia y establecer tendencia decisional de la Superintendencia de Sociedades. Para ello se empleó un tipo de investigación descriptiva con enfoque cualitativo, siendo indispensable el análisis documental como instrumento de recolección de datos. Como resultado de investigación se determinó que la tendencia decisional de la Superintendencia de Sociedades durante 2010 y 2020 se encuentra direccionada a no desestimar la personalidad jurídica por no existir suficiente material probatorio que dé cuenta de un verdadero abuso de la sociedad de capital.The main objective of this research is to identify the criteria used to grant or deny the dismissal of the legal personality of corporations in Colombia, in order to determine the scope of this legal figure, to recognize the legal criteria used by the Superintendence and to establish the decisional trend of the Superintendence of Corporations. For this purpose, a descriptive type of research with a qualitative approach was used, being indispensable the documentary analysis as an instrument of data collection. As a result of the research, it was determined that the decisional trend of the Superintendence of Corporations during 2010 and 2020 is directed to not dismiss the legal personality because there is not enough evidentiary material that shows a real abuse of the capital company.Lista de tablas 8 -- Capítulo I 10 -- Introducción 10 Planteamiento Del Problema 11 -- Pregunta Problema 13 – Objetivo 14 -- Objetivo general 14 -- Objetivos específicos 14 -- Justificación 15 – Delimitación 17 -- Delimitación Espacial 17 -- Delimitación temporal 17 -- Delimitación científica 17 -- Paradigma de la investigación 17 -- Método de la investigación 19 -- Corte de la investigación 19 -- Línea de investigación 20 – Sublínea 20 -- Capitulo II 21 -- Marco Teórico 21 -- Antecedentes de investigación 21 -- Bases teóricas 24 -- Personería jurídica en las sociedades de capital 24 -- Sociedades de capital en Colombia 25 -- Velo corporativo 32 -- Desestimación de la personalidad jurídica en Colombia 33 -- Levantamiento del velo corporativo en otros países 39 -- Método de análisis jurisprudencial 46 -- Análisis Jurisprudencial 51 -- Referentes históricos 87 -- Referentes contextuales 88 -- Marco legal 89 -- Capitulo III 90 -- Metodología Propuesta 90 -- Diseño de la investigación-Tipo 90 -- Enfoque 90 – Resultados 92 – Conclusiones 99 -- Recomendaciones 104 -- Referencias 105 --Abogado(a)Pregrad
Estrategias educativas digitales y su incidencia en la resolución de problemas matemáticos en estudiantes de básica primaria en escuelas rurales
No full textLa presente investigación tuvo como finalidad evidenciar la incidencia que tiene la estrategia mediada por las TIC Capsulas educativas digitales en la resolución de problemas aritméticos en el área de las matemáticas en los estudiantes de grado quinto (5°) del Centro educativo del Rubí, del municipio de la Macarena, Meta esto con el fin de poder fortalecer el proceso de aprendizaje de los estudiantes en las matemáticas. La investigación se realiza bajo un paradigma positivista con un enfoque cuantitativo de tipo descriptivo con un diseño cuasi experimental y transversal. Se seleccionó una muestra de 50 estudiantes de grado quinto (5°) donde a los docentes de este grado se les aplicó una ficha de observación para identificar si en él, proceso de enseñanza aprendizaje utilizaban una mediación TIC para fortalecer sus aprendizajes, luego se implementa un Pre-Test para determinar el nivel de resolución de problemas aritméticos de los estudiantes, a partir de esto se aplica la estrategia mediada por las TIC Capsulas educativas Digitales durante un periodo escolar, por último los estudiantes realizan un Post – test para determinar la incidencia que tuvo la estrategia TIC en la resolución de problemas aritméticos en los estudiantes. Por último, se logra evidenciar en los resultados que la estrategia mediada por las TIC Capsulas Educativas Digitales, fue muy pertinente al momento de fortalecer la resolución de problemas matemáticos en los estudiantes de grado quinto del centro educativo el rubí, logrando evidenciar un avance significativo en sus aprendizajes.The purpose of this research was to demonstrate the impact of the strategy mediated by digital educational capsules using ICT (Information and Communication Technology) on the resolution of arithmetic problems in fifth-grade students at a rural educational center. The research was conducted under a positivist paradigm with a quantitative, quasi-experimental, descriptive, cross-sectional, and field approach. A sample of 50 fifth-grade students was selected. An observation form was used to identify the teaching process carried out by the teachers and whether they used ICT mediation to enhance learning. Subsequently, a Pre-Test was administered to determine the level of arithmetic problem-solving skills among the students. Based on this, the strategy mediated by digital educational capsules using ICT was implemented during a school period. Finally, the students took a Post-Test to determine the impact of the ICT strategy on the resolution of arithmetic problems in the students. In the analysis of the results obtained, it is evident that the strategy mediated by digital educational capsules using ICT had a positive impact on fifth-grade students at the El Rubí educational center, demonstrating a significant improvement in the development of arithmetic problem-solving skills.Lista de Figuras y tablas 11 – Introducción 13 -- Capítulo I 15 -- Problema de investigación 15 -- Planteamiento del problema 15 -- Formulación del problema 23 – Objetivos 24 -- Objetivo general 24 -- Objetivos específicos 24 -- Justificación 25 -- Delimitación del problema 27 -- Delimitación espacial y demográfica 27 -- Delimitación temporal 27 -- Hipótesis del proyecto de investigación 28 – Hipótesis 28 -- Hipótesis nula 28 -- Hipótesis alternativa 28 -- Capitulo II 29 -- Marco referencial 29 -- Antecedentes 30 -- Antecedentes Internacionales 30 -- Antecedentes Nacionales 33 – Constructivismo 48 -- Aprendizaje autónomo 53 -- Marco Legal 55 -- Marco conceptual 58 -- Operacionalización de las variables 59 -- Capitulo III 63 -- Diseño metodológico 63 -- Paradigma de la investigación 63 -- Enfoque de la investigación 64 -- Tipo de investigación 65 -- Diseño de investigación 66 -- Población 67 – Muestra 67 -- Técnica de recolección de datos 68 -- Instrumento de recolección de datos 69 -- Capitulo IV 71 – Resultados 71 -- Análisis de los resultados cada uno de los instrumentos en la recolección de datos del proyecto de investigación 71 -- Técnica observación e instrumento ficha de observación 71 -- Técnica Test, instrumento prueba de conocimiento Icfes 72 -- Análisis Post – Test 78 -- Discusión de los resultados de la investigación 84 – Conclusiones 86 -- Dificultades 87 -- Futuras investigaciones 88 – Recomendaciones 88 -- Referencia 90 -- Anexos 98 --Magíster en EducaciónMaestrí
Diseño de un modelo de toma de decisiones multicriterio en la priorización de estrategias a Implementar para la Mejora de la cultura vial de los conductores en la Ciudad de Barranquilla
No full textAutomóviles, motocicletas, buses, entre otros medios, representan una forma de transportase dentro y fuera de las ciudades, debido a que reducen los tiempos de desplazamiento de un lugar a otro. No sólo de seres humanos, sino de todo tipo de cargas, convirtiéndose en una forma de solucionar el traslado de todo tipo de mercancías, facilitando el comercio y la industria, entre otras áreas de la economía nacional. Los medios de transporte terrestres, y consecuentemente los transportadores, pueden ser tanto individuales como masivos, así como privados o públicos, incluso son un medio de subsistencia para millones de colombianos que se dedican al transporte de pasajeros o de carga. En un país como Colombia, con casi 50 millones de habitantes, el transporte terrestre es esencial, sobre todo en las ciudades de gran número de pobladores, dentro de las cuales se concentra la mayor parte del transporte público de pasajeros, así como la mayor cantidad de vehículos privados dedicados al transporte. Es por ello por lo que se requiere de instituciones que se encarguen de establecer y hacer cumplir las normas de tránsito que permitan una mayor y mejor circulación, así como la reducción de accidentes y siniestros que diariamente cobran la vida de muchos ciudadanos. Toda persona que conduzca un vehículo de transporte terrestre debe pasar por un curso de conducción de acuerdo con la categoría del vehículo y posteriormente obtener una licencia de conducción que lo acredite como persona competente para esta función. La finalidad de este curso no es sólo la de aprender a conducir un vehículo, sino la de conocer todas las normas de tránsito ideadas con el propósito de proteger la vida del conductor, sus pasajeros y las de los demás individuos, sean transeúntes u otros conductores y pasajeros. Sin embargo, muchas de estas personas son renuentes al cumplimiento de estas normas, por lo cual a diario ocasionan accidentes que lamentablemente cobran la vida de muchas personas. Es por ello por lo que los funcionarios de las distintas entidades de control de tránsito en el país han sido entrenados para contener este tipo de situaciones, a través de diversos medios, como la imposición de comparendos y diferentes castigos para aquellos que no cumplan las normas, así como medidas de prevención sobre la seguridad vial. En el presente trabajo se analizan diferentes formas de prevención y su efectividad sobre este problema, así como posibles soluciones que permitan incentivar la cultura vial en la ciudad de Barranquilla, en la búsqueda de la formación de ciudadanos conscientes de la necesidad de proteger la vida propia y ajena a través de la seguridad vial.Automobiles, motorcycles, buses, among other means, represent a way of transporting in and out of cities, because they reduce travel times from one place to another. Not only of human beings, but of all types of cargo, becoming a way to solve the transfer of all types of merchandise, facilitating trade and industry, among other areas of the national economy. The means of land transportation, and consequently the transporters, can be both individual and massive, as well as private or public, they are even a means of subsistence for millions of Colombians who are dedicated to the transport of passengers or cargo. In a country like Colombia, with almost 50 million inhabitants, land transport is essential, especially in cities with many inhabitants, within which most of the public passenger transport is concentrated, as well as the largest number of private vehicles dedicated to transportation. That is why institutions are required to be in charge of establishing and enforcing traffic regulations that allow greater and better circulation, as well as the reduction of accidents and accidents that daily claim the lives of many citizens. Every person who drives a land transport vehicle must go through a driving course according to the category of the vehicle and subsequently obtain a driving license that accredits him as a competent person for this function. The purpose of this course is not only to learn to drive a vehicle, but also to know all the traffic regulations designed with the purpose of protecting the life of the driver, his passengers and those of other individuals, whether they are passers-by or other drivers. and passengers. However, many of these people are reluctant to comply with these regulations, which is why they cause accidents on a daily basis that unfortunately take the lives of many people. That is why the officials of the different traffic control entities in the country have been trained to contain this type of situation, through various means, such as the imposition of subpoenas and different punishments for those who do not comply with the rules, as well as preventive measures on road safety. In the present work, different forms of prevention and their effectiveness on this problem are analyzed, as well as possible solutions that allow to encourage road culture in the city of Barranquilla, in the search for the formation of citizens aware of the need to protect their own lives. and foreign through road safetyLista de Tablas y Figuras 12—Introducción 14-- Planteamiento del Problema 15-- Objetivos 24-- Objetivo General 24-- Objetivos específicos 24-- Estado del Arte 25-- Marco Teórico 31-- Herramientas multicriterio para tomas de decisiones 31-- Técnica AHP (Proceso Analítico Jerárquico) 32-- Quality Function Deployment (QFD) 34-- Señales de tránsito 37-- Comparendos 41-- Cultura Vial 43-- Marco Legal 46-- Materiales y métodos 47-- Descripción de la población de estudio 47-- Alcance de la investigación 47-- Enfoque de la Investigación 47-- Técnicas e Instrumentos 47-- Resultados 51-- Análisis diagnóstico sobre los comparendos de tránsito en la ciudad de Barranquilla. 51--Distribución por tipo de comparendo 52-- Servicio 56-- Curso Vial 60-- Estado de los comparendos 62-- Clase de transporte 63-- Definición de las estrategias potenciales para la mejora de la cultura vial de los conductores de la ciudad de Barranquilla 66-- Modelo multicriterio para la priorización de las estrategias a implementar para mejorar la cultura vial de los conductores de la ciudad de Barranquilla 69-- Desafíos para la mejora de la cultura vial de los conductores de la ciudad de Barranquilla 70-- Definición de criterios 71-- Aplicación de AHP 73-- Conclusión y recomendaciones 78-- Referencias 80--Magíster en IngenieríaMaestrí
An artificial bee bare-bone hunger games search for global optimization and high-dimensional feature selection
No full textThe domains of contemporary medicine and biology have generated substantial high-dimensional genetic data. Identifying representative genes and decreasing the dimensionality of the data can be challenging. The goal of gene selection is to minimize computing costs and enhance classification precision. Therefore, this article designs a new wrapper gene selection algorithm named artificial bee bare-bone hunger games search (ABHGS), which is the hunger games search (HGS) integrated with an artificial bee strategy and a Gaussian bare-bone structure to address this issue. To evaluate and validate the performance of our proposed method, ABHGS is compared to HGS and a single strategy embedded in HGS, six classic algorithms, and ten advanced algorithms on the CEC 2017 functions. The experimental results demonstrate that the bABHGS outperforms the original HGS. Compared to peers, it increases classification accuracy and decreases the number of selected features, indicating its actual engineering utility in spatial search and feature selection
A review of the antibiotic ofloxacin: Current status of ecotoxicology and scientific advances in its removal from aqueous systems by adsorption technology
No full textIt is estimated that the growth of the population, the augmented expectancy of life, and the emergence of new pandemics will significantly increase the consumption of pharmaceutical drugs in the coming years. Due to its high efficiency, the group of fluoroquinolones, where the antibiotic ofloxacin hydrochloride (OFL) is found, is widely used to combat bacterial infections in humans and animals. The big problem is concentrated in the effluents generated by industries and hospitals. Additionally, most of the drug is not absorbed by the body and is released directly into domestic effluents. On the other hand, treatment stations have removal limitations for small concentrations. This review analyzed all adsorbents developed and used in OFL removal, listing the main parameters influencing the process. In the end, the other existing technologies in the literature and the gaps and future prospects were described. OFL adsorption in most studies occurs under basic conditions (pH between 6.5 and 8). The increase in concentration provides an increase in adsorption capacity. The adsorbents analyzed showed moderate kinetics, reaching equilibrium before 250 min for most studies. The pseudo-second-order model showed the best statistical fit. In most of the studies, the increase in temperature (313, 315, and 328 K) favored the adsorption of OFL. The Langmuir monolayer model represented most of the isothermal studies. The adsorption capacity varied from 3702 to 0.3986 mg g−1. In this aspect, factors such as OFL concentration and textural characteristics of the adsorbent exerted great influence. The thermodynamic parameters were compatible with the isothermal data, where the endothermic nature of the studies was confirmed. Physical interactions (π-π stacking, H bonding, hydrophobic and electrostatic interactions) governed the main adsorption mechanism. Although some studies stated that chemosorption occurred, thermodynamic parameters cannot validate the same. Coexisting ions in the solution can positively and negatively influence OFL adsorption. The listed studies are all applied to batch processes, where fixed bed studies should be better explored. From this review, it can be concluded that adsorption is a promising technique for OFL removal. However, it is extremely necessary to break the laboratory scale barrier and analyze possible conditions for applying these materials in treating real effluents together with combining technologies