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Multicriteria hierarchical ranking for investment selectrion in Latin American countries
No full textThe article aims to evaluate a set of Latin American countries to identify the level of risk as an investment option. Financial indicators and macroeconomic variables that present two grouping levels are considered to generate a ranking of prospective investment countries using the multicriteria hierarchical approach based on the ELECTRE III method. This approach allows countries to be sorted by dimensions in a group of indicators applied as decision criteria. The main contribution is identifying countries with investment viability in specific evaluation dimensions. As a result, an ordering is obtained at a global level, and a subgroup ordering of criteria the preferences of investors
Formación inicial docente en educación física y su relación con la gestión y administración deportiva
No full textChanges in Televisit Modalities Due to the COVID Pandemic in Chile: A Comparison of Patient Satisfaction
Get PDFBackground: The coronavirus disease 2019 (COVID-19) pandemic has impacted healthcare guidelines and modalities of patient consultation worldwide. The frequent cycles of quarantine confinement in Chile have caused mobility restrictions for patients and physicians, forcing the Hospital Las Higueras de Talcahuano (HHT) to replace the assisted televisit modality with a more classic televisit program. Here we have described if this change in televisit modality and type of outpatient may have impacted patients’ satisfaction.
Methods: The patient’s perception of satisfaction was evaluated through self-administered survey questionnaires previously validated in Spanish. Cohorts were grouped according to the following two relational models: (i) assisted televisit, 503 neurology patients from 2018 to 2019, and (ii) televisit, 831 patients from different specialties treated during 2020. Perception of satisfaction was compared by gender, age, and type of televisit, and internal consistency (Cronbach alpha) and reliability (factorial analysis of principal components) were assessed. Finally, we compared the patient satisfaction of both modalities.
Results: Questionnaires showed excellent internal consistency; all items showed point biserial correlations greater than 0.30. Assisted televisit and televisit cohorts comprised 64.2% and 67.6% females, respectively, and patients under the age of 65 years were 62.2% and 75%, respectively. Assisted televisit patients showed very high 94.4% (n=475) and high 5.2% (n=26) satisfaction levels, while televisit patients showed very high 22.3% (n=185), high 63.9% (n=531), and moderate 13.1% (n=109) satisfaction levels; this difference was statistically significant at p<0.001.
Conclusion: Lower perception of satisfaction due to the change in televisit relational modality underscores the importance of primary care professionals who support the specialist in the assisted televisit model. However, the televisit modality showed high patient satisfaction and suggested that this modality can be a plausible alternative according to each location's reality. The results of this study indicate that both assisted televisit and televisit contribute to delivering an integrative solution that helps to alleviate the system's fragmentation
El acontecimiento de una verdadera vida: La filosofía de François Jullien y el recurso cristiano
Get PDFEl pensamiento de François Jullien ha realizado valiosos aportes a la filosofía contemporánea, principalmente, nutriendo la interpretación de algunas temáticas clásicas desde la originalidad de la milenaria sabiduría china. Este enfoque ha revelado aspectos que la filosofía occidental, con su metafísica centrada en el ser, ha pasado por alto. Entre estos aspectos, Jullien ha llamado la atención sobre cómo han quedado impensados, al menos para la filosofía, una serie de recursos de lo se podría llamar ‘pensamiento cristiano’. La pregunta central de esta investigación es si esta lógica cristiana representa un recurso más, entre varios, que Jullien ha explotado en su trabajo intelectual o si, además, constituye una de las fuentes fundamentales de su propia obra y el comienzo de posibles des-coincidencias con la filosofía del ser. Las conclusiones indican una presencia notable e indispensable de estas nociones cristianas en su propuesta argumental, aunque sin pasar por la fe. Este estudio comenzará revisando las principales tesis del filósofo francés y, al mismo tiempo, describirá cómo él mismo las ha ido poniendo en relación y discusión con la doctrina cristiana
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Get PDFEnhancing the evidence on the significance of supervised physical exercise in alleviating fatigue among breast cancer patients
No full textPropiedades psicométricas de las subescalas de inatención e hiperactividad/Impulsividad de la VADTRS para evaluación del TDAH en niños y adolescentes en Chile
Get PDFIntroducción: Este estudio busca evaluar psicométricamente las subescalas de inatención e hiperactividad/impulsividad de la Vanderbilt ADHD Teacher Rating Scale (VADTRS) para el diagnóstico del Trastorno por Déficit de Atención con Hiperactividad (TDAH) en niños y adolescentes en Chile.
Método: La muestra incluyó a 353 estudiantes de 2° de primaria a 3° de secundaria de tres escuelas en la provincia de Biobío, seleccionados mediante muestreo no probabilístico por conveniencia. La VADTRS es un cuestionario de observación conductual con 18 ítems que evalúan síntomas de inatención e hiperactividad/impulsividad. Se realizaron análisis estadísticos descriptivos, se evaluó la validez de contenido y se calculó la consistencia interna. Además, se llevó a cabo un análisis factorial confirmatorio para validar la estructura de la escala.
Resultados: Los resultados mostraron una alta concordancia inter-observador (v de Aiken = .96) y alta fiabilidad en la escala total (ω = .97) y subescalas de inatención (ω = .96) e hiperactividad/impulsividad (ω = .94). El análisis factorial confirmatorio validó la estructura de dos factores correspondientes a los síntomas del TDAH.
Discusión y conclusiones: La VADTRS demostró ser una herramienta confiable y válida para detectar el TDAH en estudiantes chilenos. Su fácil aplicación la convierte en una opción viable para identificar a quienes puedan enfrentar esta condición, permitiendo una intervención temprana y apoyo adecuado para mejorar su adaptación y desarrollo académico. La validación de esta escala es relevante, dado que la investigación sobre la detección del TDAH en Chile es limitada, y este estudio contribuye al campo de la salud mental infantil y adolescente. Implementar la VADTRS en el contexto educativo podría mejorar la detección temprana y proporcionar una atención más efectiva a aquellos estudiantes que presenten este trastorno, impactando positivamente en su bienestar y rendimiento académico. En conclusión, este estudio aporta conocimientos valiosos para la práctica clínica y la investigación en el área del TDAH en Chile
Taguatagua 3: A new late Pleistocene settlement in a highly suitable lacustrine habitat in central Chile (34°S)
Get PDFWe present the results of the excavations and analyses of the diverse and exceptional archaeological assemblage of Taguatagua 3, a new late Pleistocene site located in the ancient Tagua Tagua lake in Central Chile (34°S). The anthropogenic context is constrained in a coherently dated stratigraphic deposit which adds new information about the mobility, subsistence strategies, and settlement of the early hunter-gatherers of southern South America. The age model constructed, as well as radiocarbon dates obtained directly from a combustion structure, indicate that the human occupation occurred over a brief time span around 12,440–12,550 cal yr BP. Considering taphonomic, geoarchaeological, lithic, archaeobotanical, and zooarchaeological evidence, as well as the spatial distribution combined with ethnographic data, we interpret Taguatagua 3 as a logistic and temporary camp associated mainly with gomphothere hunting and butchering. Nevertheless, several other activities were carried out here as well, such as hide and/or bone preparation, small vertebrate and plant processing and consumption, and red ochre grinding. Botanical and eggshell remains suggest that the anthropic occupation occurred during the dry season. Considering the contemporaneous sites recorded in the basin, we conclude that the ancient Tagua Tagua lake was a key location along the region’s early hunter-gatherer mobility circuits. In this context, it acted as a recurrent hunting/scavenging place during the Late Pleistocene due to its abundant, diverse, and predictable resources
An augmented mixed FEM for the convective Brinkman-Forchheimer problem: A priori and a posteriori error analysis
No full textWe propose and analyse an augmented mixed finite element method for the pseudo stress–velocity formulation of the stationary convective Brinkman–Forchheimer problem inRd, d∈ {2,3}. Since the convective and Forchheimer terms forces the velocity to live in a smaller space than usual, we augment the variational formulation with suitable Galerkin type terms. The resulting augmented scheme is written equivalently as a fixed point equation, so that the well-known Schauder and Banach theorems, combined with the Lax–Milgram theorem, allow to prove the unique solvability of the continuous problem. The finite element discretization involves Raviart–Thomas spaces of order k≥0 for the pseudostress tensor and continuous piecewise polynomials of degree ≤k+1 for the velocity. Stability, convergence, and a priori error estimates for the associated Galerkin scheme are obtained. In addition, we derive two reliable and efficient residual-based a posteriori error estimators for this problem on arbitrary polygonal and polyhedral regions. The reliability of the proposed estimators draws mainly upon the uniform ellipticity of the form involved, a suitable assumption on the data, a stable Helmholtz decomposition, and the local approximation properties of the Clément and Raviart–Thomas operators. In turn, inverse inequalities, the localization technique based on bubble functions, and known results from previous works, are the main tools yielding the efficiency estimate. Finally, some numerical examples illustrating the performance of the mixed finite element method, confirming the theoretical rate of convergence and the properties of the estimators, and showing the behaviour of the associated adaptive algorithms, are reported. In particular, the case of flow through a 2D porous media with fracture networks is considered