142 research outputs found

    Análisis de la capacidad de carga turística como estrategia para la gestión de un aviturismo sostenible

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    Objective: to determine the tourist carrying capacity through the analysis of the current concept; identifying the necessary propositions and explaining the sufficient meaning for the strategic management of sustainable and sustainable avitourism in Colombia, which has an important potential for diversification. Method. The methodology of documentary analysis and the technique of tracking, indexing, annotation, extraction, organization, translation and systematization of reviews of articles and electronic documents were applied, establishing the convergences and divergences of the theoretical and methodological constructs assumed in the ways of understanding, describing and evaluating the tourist carrying capacity of avitourism. Results: In the literature reviewed, the most referenced theoretical and conceptual approaches to tourism carrying capacity applied to avitourism are identified, as well as some of the scopes and limitations of the methodological models used and an approach to the analysis of this method from a multidisciplinary perspective. Conclusion. It concludes with the determination of the key and essential elements that should be present in the tourist carrying capacity as a tool for the management of sustainable bird watching tourism.Objetivo. Determinar la capacidad de carga turística mediante el análisis del concepto vigente, identificando las proposiciones necesarias y explicando el significado suficiente para la gestión estratégica del aviturismo sostenible y sustentable en Colombia, que cuenta con un potencial importante de diversificación. Métodos. Se aplicó la metodología de análisis documental y la técnica del rastreo, indización, anotación, extracción, organización traducción y sistematización de reseñas de artículos y documentos electrónicos, estableciendo las convergencias y divergencias de los constructos teóricos y metodológicos asumidos en los modos de comprender, describir y evaluar la capacidad de carga turística del aviturismo. Resultados. En la literatura revisada se indentifican los enfoques teóricos y conceptuales más referenciados con respecto a la capacidad de carga turística aplicada al aviturismo, así como se indican algunos de los alcances y limitaciones de los modelos metodológicos utilizados y se realiza una aproximación al análisis de este método desde una perspectiva multidisciplinar. Conclusión. Se concluye con la determinación de los elementos claves y esenciales que, deben estar presentes en la capacidad de carga turística como una herramienta para la gestión de un aviturismo sostenible

    Viabilidad jurídica del reconocimiento expreso del menor de edad por parte de los abuelos

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    T 346.017 R61;80 p.Se analiza la viabilidad jurídica del reconocimiento del menor de edad por parte del abuelo paterno en caso de que el padre falleciere y para protección del derecho fundamental del menor. Se propone la posibilidad de un procedimiento administrativo que permita un acceso pronto y oportuno al menor de edad a su filiación natural real.Universidad Libre de Pereir

    El Turismo creativo como dinamizador de las economías locales: Estudio de caso en una comunidad afrodescendiente

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    Creative tourism is currently emerging as a differential and alternative proposal for experiences to vindicate the cultural, environmental and artistic aspects, while the tourist simulates immersive interaction with social, cultural and natural landscapes. This article develops a case study with the village community of La Puerta, San Nicolás de quebrada seca, municipality of Sopetrán, Antioquia, in order to analyze the possibilities of tourism use, which can be accessed by the inhabitants of the Afro-descendant collective territory of the village of La Puerta, in Sopetrán, Antioquia, from the approach of the orange economy. For this purpose, a qualitative research method was applied, from a participatory and interactive methodological approach, with the predominance of techniques such as sociographic analysis and group discussion. Recognition of the modes of representation and territorial action of the community of La Puerta, in terms of the dynamization of social and community processes, which advocate for the protection of the ecosystemic patrimony, La Bramadora wetland. 2. Description of the process of insertion of a sustainable, creative and vindicating tourism, through conservation practices, such as bird watching, that stimulate and dynamize the development of the local economy. It is concluded that orange tourism is a dynamizer of local economic development par excellence, besides being one of the clearest bets in the process of economic recovery of the tourism sector in general.El turismo creativo emerge en la actualidad como una propuesta diferencial, alternativa y de cocreación para potenciar la vivencia de experiencias en función de reivindicar lo cultural, lo ambiental y lo artístico, al tiempo que el turista y el anfitrión se sumergen en una relación de interacción que les permite reconocerse, reunirse, desdibujarse, leerse y transitar desde la complicidad del saber por paisajes sociales, culturales y naturales. Se desarrolla en este artículo, un estudio de caso con la comunidad negra de La Puerta, corregimiento de San Nicolás de quebrada seca, municipio de Sopetrán, Antioquia, con el fin de analizar las posibilidades de aprovechamiento turístico, a las que pueden acceder los habitantes del territorio colectivo afrodescendiente de la vereda La Puerta, en Sopetrán, Antioquia, a partir del enfoque de la economía naranja. Para ello se aplicó un método de investigación cualitativo, desde un abordaje metodológico participativo e interactivo, con el predominio de técnicas como el análisis sociográfico y la discusión grupal. Se obtienen como resultados: 1. Reconocimiento de los modos de representación y actuación territorial propios de la comunidad de La Puerta, en función de la dinamización de procesos sociales y comunitarios, que propendan por la protección del patrimonio ecosistémico, humedal La Bramadora. 2. Descripción del proceso de inserción de un turismo sostenible, creativo y reivindicador, a través de prácticas de conservación, como el avistamiento de aves, que estimulen y dinamicen el desarrollo de la economía local. Se concluye que el turismo naranja es un dinamizador del desarrollo económico local por excelencia, además de ser unas de las apuestas más claras en el proceso de recuperación económica del sector turismo en general

    Highly-parallelized simulation of a pixelated LArTPC on a GPU

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    The rapid development of general-purpose computing on graphics processing units (GPGPU) is allowing the implementation of highly-parallelized Monte Carlo simulation chains for particle physics experiments. This technique is particularly suitable for the simulation of a pixelated charge readout for time projection chambers, given the large number of channels that this technology employs. Here we present the first implementation of a full microphysical simulator of a liquid argon time projection chamber (LArTPC) equipped with light readout and pixelated charge readout, developed for the DUNE Near Detector. The software is implemented with an end-to-end set of GPU-optimized algorithms. The algorithms have been written in Python and translated into CUDA kernels using Numba, a just-in-time compiler for a subset of Python and NumPy instructions. The GPU implementation achieves a speed up of four orders of magnitude compared with the equivalent CPU version. The simulation of the current induced on 103 pixels takes around 1 ms on the GPU, compared with approximately 10 s on the CPU. The results of the simulation are compared against data from a pixel-readout LArTPC prototype

    Identification and reconstruction of low-energy electrons in the ProtoDUNE-SP detector

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    Measurements of electrons from νe interactions are crucial for the Deep Underground Neutrino Experiment (DUNE) neutrino oscillation program, as well as searches for physics beyond the standard model, supernova neutrino detection, and solar neutrino measurements. This article describes the selection and reconstruction of low-energy (Michel) electrons in the ProtoDUNE-SP detector. ProtoDUNE-SP is one of the prototypes for the DUNE far detector, built and operated at CERN as a charged particle test beam experiment. A sample of low-energy electrons produced by the decay of cosmic muons is selected with a purity of 95%. This sample is used to calibrate the low-energy electron energy scale with two techniques. An electron energy calibration based on a cosmic ray muon sample uses calibration constants derived from measured and simulated cosmic ray muon events. Another calibration technique makes use of the theoretically well-understood Michel electron energy spectrum to convert reconstructed charge to electron energy. In addition, the effects of detector response to low-energy electron energy scale and its resolution including readout electronics threshold effects are quantified. Finally, the relation between the theoretical and reconstructed low-energy electron energy spectra is derived, and the energy resolution is characterized. The low-energy electron selection presented here accounts for about 75% of the total electron deposited energy. After the addition of lost energy using a Monte Carlo simulation, the energy resolution improves from about 40% to 25% at 50 MeV. These results are used to validate the expected capabilities of the DUNE far detector to reconstruct low-energy electrons

    Low exposure long-baseline neutrino oscillation sensitivity of the DUNE experiment

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    The Deep Underground Neutrino Experiment (DUNE) will produce world-leading neutrino oscillation measurements over the lifetime of the experiment. In this work, we explore DUNE's sensitivity to observe charge-parity violation (CPV) in the neutrino sector, and to resolve the mass ordering, for exposures of up to 100 kiloton-megawatt-years (kt-MW-yr). The analysis includes detailed uncertainties on the flux prediction, the neutrino interaction model, and detector effects. We demonstrate that DUNE will be able to unambiguously resolve the neutrino mass ordering at a 3σ\sigma (5σ\sigma) level, with a 66 (100) kt-MW-yr far detector exposure, and has the ability to make strong statements at significantly shorter exposures depending on the true value of other oscillation parameters. We also show that DUNE has the potential to make a robust measurement of CPV at a 3σ\sigma level with a 100 kt-MW-yr exposure for the maximally CP-violating values \delta_{\rm CP}} = \pm\pi/2. Additionally, the dependence of DUNE's sensitivity on the exposure taken in neutrino-enhanced and antineutrino-enhanced running is discussed. An equal fraction of exposure taken in each beam mode is found to be close to optimal when considered over the entire space of interest

    A Gaseous Argon-Based Near Detector to Enhance the Physics Capabilities of DUNE

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    This document presents the concept and physics case for a magnetized gaseous argon-based detector system (ND-GAr) for the Deep Underground Neutrino Experiment (DUNE) Near Detector. This detector system is required in order for DUNE to reach its full physics potential in the measurement of CP violation and in delivering precision measurements of oscillation parameters. In addition to its critical role in the long-baseline oscillation program, ND-GAr will extend the overall physics program of DUNE. The LBNF high-intensity proton beam will provide a large flux of neutrinos that is sampled by ND-GAr, enabling DUNE to discover new particles and search for new interactions and symmetries beyond those predicted in the Standard Model

    Identification and reconstruction of low-energy electrons in the ProtoDUNE-SP detector

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    Measurements of electrons from νe\nu_e interactions are crucial for the Deep Underground Neutrino Experiment (DUNE) neutrino oscillation program, as well as searches for physics beyond the standard model, supernova neutrino detection, and solar neutrino measurements. This article describes the selection and reconstruction of low-energy (Michel) electrons in the ProtoDUNE-SP detector. ProtoDUNE-SP is one of the prototypes for the DUNE far detector, built and operated at CERN as a charged particle test beam experiment. A sample of low-energy electrons produced by the decay of cosmic muons is selected with a purity of 95%. This sample is used to calibrate the low-energy electron energy scale with two techniques. An electron energy calibration based on a cosmic ray muon sample uses calibration constants derived from measured and simulated cosmic ray muon events. Another calibration technique makes use of the theoretically well-understood Michel electron energy spectrum to convert reconstructed charge to electron energy. In addition, the effects of detector response to low-energy electron energy scale and its resolution including readout electronics threshold effects are quantified. Finally, the relation between the theoretical and reconstructed low-energy electron energy spectrum is derived and the energy resolution is characterized. The low-energy electron selection presented here accounts for about 75% of the total electron deposited energy. After the addition of lost energy using a Monte Carlo simulation, the energy resolution improves from about 40% to 25% at 50~MeV. These results are used to validate the expected capabilities of the DUNE far detector to reconstruct low-energy electrons.Comment: 19 pages, 10 figure

    Snowmass Neutrino Frontier: DUNE Physics Summary

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    The Deep Underground Neutrino Experiment (DUNE) is a next-generation long-baseline neutrino oscillation experiment with a primary physics goal of observing neutrino and antineutrino oscillation patterns to precisely measure the parameters governing long-baseline neutrino oscillation in a single experiment, and to test the three-flavor paradigm. DUNE's design has been developed by a large, international collaboration of scientists and engineers to have unique capability to measure neutrino oscillation as a function of energy in a broadband beam, to resolve degeneracy among oscillation parameters, and to control systematic uncertainty using the exquisite imaging capability of massive LArTPC far detector modules and an argon-based near detector. DUNE's neutrino oscillation measurements will unambiguously resolve the neutrino mass ordering and provide the sensitivity to discover CP violation in neutrinos for a wide range of possible values of δCP. DUNE is also uniquely sensitive to electron neutrinos from a galactic supernova burst, and to a broad range of physics beyond the Standard Model (BSM), including nucleon decays. DUNE is anticipated to begin collecting physics data with Phase I, an initial experiment configuration consisting of two far detector modules and a minimal suite of near detector components, with a 1.2 MW proton beam. To realize its extensive, world-leading physics potential requires the full scope of DUNE be completed in Phase II. The three Phase II upgrades are all necessary to achieve DUNE's physics goals: (1) addition of far detector modules three and four for a total FD fiducial mass of at least 40 kt, (2) upgrade of the proton beam power from 1.2 MW to 2.4 MW, and (3) replacement of the near detector's temporary muon spectrometer with a magnetized, high-pressure gaseous argon TPC and calorimeter
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