1,721,206 research outputs found

    Diseño de un modelo de simulación para la mejora de la oportunidad de atención en urgencias de una Clínica de Barranquilla

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    El tiempo de espera es una medida de rendimiento crucial en los departamentos de A & E. En este sentido, los tiempos de espera más largos están relacionados con la baja satisfacción del paciente, altas tasas de mortalidad y complicaciones de salud física más graves. Este trabajo tiene como objetivo diseñar y pre-test de escenarios de mejora a la atención de la atención ED a través de la utilización de la simulación de eventos discretos (DES). En primer lugar, se realiza el análisis de datos de entrada. Posteriormente, se desarrolla y valida el modelo DES para establecer si es estadísticamente comparable con el mundo real. A continuación, se calculan y analizan los indicadores de rendimiento del sistema actual. Finalmente, las estrategias de mejora son propuestas y evaluadas mediante modelos de simulación y pruebas estadísticas. Se presenta un estudio de caso de un departamento de A & E de una clínica general del distrito para validar el marco propuesto. En particular, validaremos la eficacia de la introducción de un sistema de triaje (Escenario 3), una estrategia que no es actualmente adoptada por la clínica. Los resultados demostraron que los tiempos de espera podrían disminuir significativamente sobre la base de los enfoques propuestos en este documentoWaiting time is a crucial performance metric in A&E departments. In this regard, longer waiting times are related to low patient satisfaction, high mortality rates and more severe physical health complications. This paper aims to design and pretest improvement scenarios to ED care delivery via using Discrete Event Simulation (DES). First, input data analysis is carried out. Afterward, the DES model is developed and validated to establish whether it is statistically comparable with the real-world. Then, performance indicators of the current system are computed and analyzed. Finally, improvement strategies are proposed and evaluated by simulation modelling and statistical tests. A case study of an A&E department from a district general clinic is presented to validate the proposed framework. In particular, we will validate the effectiveness of introducing a triage system (Scenario 3), a strategy that is not currently adopted by the clinic. Results demonstrated that waiting times could be meaningfully diminished based on the proposed approaches within this paper.Núñez Pérez, Nixon De Jesús-391495e5-7111-49cf-9e0c-6e1364f0ff74-

    Diseño de alcantarillado y tratamiento de aguas residuales para los barrios Miguel Cordero y el Quinche de la parroquia Ricaurte

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    La presente Tesis es un trabajo practico que contempla el diseño de un alcantarillado sanitario para los barrios Miguel Cordero y Quinche de la parroquia Ricaurte y un sistema de tratamiento de aguas residuales que consiste en el diseño de una fosa séptica y de zanjas filtrantes, para ello se han realizado los respectivos estudios poblacionales, se han determinado los parámetros de diseño necesarios para la realización del trabajo, además se calculó el presupuesto de las diferentes obras y se realizó los planos respectivos del proyecto, además se anexan encuestas sanitarias realizadas a los moradores del sector, los trabajos topográficos realizados, análisis de precios y especificaciones técnicasIngeniero CivilCuenca, Ecuado

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed

    Variations on the Author

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    “Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship

    Diseño de estrategias multifactoriales para la mejora de los procesos de ventas en empresas comercializadoras de electrodomésticos durante el COVID - 19

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    The companies from the electrical appliance sector have been widely affected by the Covid-19 pandemics, a fact that is evident through the reduction of sales and the low effectiveness of commercial strategies adopted during the incursion in markets depressed by the current socioeconomic scenario. It is then necessary to assess the preparedness level of their sales departments when facing future Covid-19 waves and other pandemic scenarios as well as the design of multifactorial strategies increasing their commercial effectiveness. For this purpose, the primary aim of this project is two-fold: i) to provide a methodological approach for measuring the preparedness level of sales departments from the electrical appliance sector during their future incursion in markets depressed by new Covid-19 waves and other pandemics, and ii) to propose intervention plans augmenting the effectiveness of their commercial strategies during pandemic scenarios. To do these, the present work suggests the implementation of a multi-criteria model comprised of 8 criteria and 29 sub-criteria. For its deployment, the AHP technique is applied to calculate the relative importance of criteria and sub-criteria. Following this, the Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) was employed to estimate the preparation index of the sales departments and detect their intervention points. Ultimately, a real application of the model with the involvement of 7 multinational companies from the electrical appliance sector is depicted to validate the effectiveness of the proposed approach in the real commercial scenario. In this case study, multifactorial strategies are recommended for incrementing the efficacy in the incursion of these companies within contexts plagued by future Covid-19 waves and other pandemics.Las compañías del sector electrodoméstico se han visto ampliamente afectadas por la pandemia del Covid-19 hecho que se hace evidente a través de la disminución en los índices de ventas y la poca efectividad de las estrategias comerciales adoptadas durante la incursión en mercados deprimidos por el escenario socio-económico actual. Lo anterior hace necesario evaluar el nivel de preparación de sus departamentos de ventas ante futuros rebrotes del virus y otros escenarios pandémicos, así como el diseño de estrategias multifactoriales que eleven su nivel de efectividad comercial. Por tal motivo, el objetivo de este proyecto es doble: i) suministrar un enfoque metodológico para la medición del nivel de preparación de los departamentos de ventas del sector electrodoméstico durante su futura incursión en mercados deprimidos por rebrotes del virus Covid-19 y otras pandemias y ii) proponer planes de intervención que eleven la efectividad de sus estrategias comerciales durante la aparición de escenarios pandémicos. Ante esto, el presente trabajo propone la implementación de un modelo multicriterio integrado por 8 criterios y 29 sub-criterios. Para su operacionalización, se implementa el Proceso Analítico Jerárquico (AHP) que permite calcular la importancia relativa de criterios y sub-criterios. Seguidamente, se aplica la Técnica de Orden de Preferencia por Similitud a la Solución Ideal (TOPSIS) para calcular el índice de preparación de los departamentos de ventas y detectar sus puntos de intervención. Finalmente, se presenta una aplicación real del modelo con la participación de 7 empresas multinacionales del sector electrodoméstico a fin de validar su efectividad en el escenario comercial. En dicha aplicación, se proponen estrategias multifactoriales para el incremento de la efectividad en la incursión comercial de estas compañías durante futuros rebrotes del virus Covid-19 y otras pandemias.Borrego Areyanes, Arlen AlaineGómez Villar, Iván Darí

    Diseño de estrategias para la mejora de la atención ginecobstétrica en los hospitales del Atlántico

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    Gynecobstetrics departments (GDs) are in charge of diagnosing, monitoring, and treating female reproductive diseases as well as assisting women during pregnancy. Their importance motivates the creation of suitable performance evaluation approaches for identifying weaknesses and designing focused interventions. Therefore, the aim of this paper is two-fold: i) provide an approach for GD performance evaluation and ii) propose interventions tackling the GDs’ weaknesses.The implemented approached for evaluating the overall performance of DGs is a Hybrid decision making model based on FAHP, DEMATEL and TOPSIS. The Fuzzy Analytic Hierarchy Process (FAHP) was first applied to calculate the initial criteria and sub-criteria weights under vagueness. Then, the Decision-Making Trial and Evaluation Laboratory (DEMATEL) was implemented to evaluate interrelations. FAHP and DEMATEL were later combined to estimate the final criteria and sub-criteria weights under vagueness and interdependency. Finally, the Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) was used to rank the GDs and detect improvement opportunities. Finally, a case study of a cluster including three GDs is presented to validate the proposed approach, in which performance comparisons were made and the weak points were identified for each GD. From a literary review, the possible causes separating these DGs from the desired performance were identified, and action plans were constructed aimed to improve the healthcare cluster performance.Los departamentos de ginecobstetricia (DG) se encargan de diagnosticar, monitorear, y tratar enfermedades reproductivas femeninas, así como de ayudar a las mujeres durante el embarazo. Su importancia motiva la creación de enfoques adecuados de evaluación del desempeño para identificar debilidades y diseñar intervenciones enfocadas a su mejora. Por lo tanto, el objetivo de este documento es doble: i) proporcionar un enfoque para la evaluación del rendimiento de los DG y ii) proponer intervenciones que afronten las debilidades de los DG. El enfoque utilizado para la evaluación del desempeño de los DG es la implementación de un modelo hibrido de decisión multicriterio basado en FAHP, DEMATEL y TOPSIS. El Proceso de Jerarquía Analítica Difusa (FAHP) se aplicó para calcular los pesos de los criterios y los subcriterios iniciales bajo vaguedad. A continuación, se implementó el Laboratorio de Ensayo y Evaluación de Toma de Decisiones (DEMATEL) para evaluar las interrelaciones. FAHP y DEMATEL se combinaron más tarde para estimar los pesos finales de los criterios y subcriterios bajo vaguedad e interdependencia. Por último, la Técnica de Orden de Preferencia por Similitud a la Solución Ideal (TOPSIS) se utilizó para clasificar los DGs y detectar oportunidades de mejora. Finalmente, se presenta un caso práctico de un clúster que incluye tres DGs para validar la aplicación propuesta, en el cual se compararon los rendimientos de cada uno y se identificaron las falencias presentes. A partir de una revisión literaria, se identificaron las posibles causas que separan a estos DGs del rendimiento deseado y se construyeron planes de acción con el objetivo de mejorar el rendimiento de los DGs del clúster

    Appropriate Similarity Measures for Author Cocitation Analysis

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    We provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis

    Dispelling the Myths Behind First-author Citation Counts

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    We conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more sophisticated methods
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