1,726 research outputs found

    Construction of a taxonomy for requirements engineering commercial-off-the-shelf components

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    This article presents a procedure for constructing a taxonomy of COTS products in the field of Requirements Engineering (RE). The taxonomy and the obtained information reach transcendental benefits to the selection of systems and tools that aid to RE-related actors to simplify and facilitate their work. This taxonomy is performed by means of a goal-oriented methodology inspired in GBRAM (Goal-Based Requirements Analysis Method), called GBTCM (Goal-Based Taxonomy Construction Method), that provides a guide to analyze sources of information and modeling requirements and domains, as well as gathering and organizing the knowledge in any segment of the COTS market. GBTCM claims to promote the use of standards and the reuse of requirements in order to support different processes of selection and integration of components.Peer ReviewedPostprint (published version

    A software service supporting software quality forecasting

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    Software repositories such as source control, defect tracking systems and project management tools, are used to support the progress of software projects. The exploitation of such data with techniques like forecasting is becoming an increasing need in several domains to support decision-making processes. However, although there exist several statistical tools and languages supporting forecasting, there is a lack of friendly approaches that enable practitioners to exploit the advantages of creating and using such models in their dashboard tools. Therefore, we have developed a modular and flexible forecasting service allowing the interconnection with different kinds of databases/data repositories for creating and exploiting forecasting models based on methods like ARIMA or ETS. The service is open source software, has been developed in Java and R and exposes its functionalities through a REST API. Architecture details are provided, along with functionalities’ description and an example of its use for software quality forecasting.Peer ReviewedPostprint (author's final draft

    Bilateral thalamic stroke due to occlusion of the artery of Percheron in a patient with patent foramen ovale: a case report

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    <p>Abstract</p> <p>Introduction</p> <p>Bilateral thalamic infarcts are rare presentations of stroke. They are the result of a complex combination of risk factors and a predisposing vessel distribution. The artery of Percheron, characterized by a single arterial trunk that irrigates both paramedian thalamic regions, can be occluded as a result of embolic diseases leading to bilateral paramedian thalamic infarcts. Clinical and image findings of this uncommon form of posterior circulation infarct are presented along with their anatomic and pathophysiologic correlates.</p> <p>Case presentation</p> <p>A 27-year-old Mexican man with no relevant medical history was admitted to hospital after he was found deeply stuporous. On admission, an urgent neuroimaging protocol for stroke, including magnetic resonance imaging and magnetic resonance imaging angiography, was performed. The scans revealed symmetric bilateral hyperintense paramedian thalamic lesions consistent with acute ischemic events. The posterior circulation was patent including the tip of the basilar artery and both posterior cerebral arteries, making the case compatible with occlusion of the artery of Percheron. Further evaluation with an aim to define the etiology revealed a patent foramen ovale as the cause of embolism.</p> <p>Conclusion</p> <p>Bilateral thalamic infarcts are unusual presentations of posterior circulation stroke; once they are diagnosed by an adequate neuroimaging protocol, a further evaluation to define the cause is necessary. Cardioembolism should always be considered in relatively young patients. A complete evaluation should be conducted by an interdisciplinary team including neurologists, cardiologists and neurosurgeons.</p

    Análisis bioético de la objeción de conciencia en el ámbito sanitario

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    A lo largo de este trabajo fin de grado se va a realizar un análisis sobre la objeción de conciencia en el ámbito sanitario planteando aspectos legales y éticos. Desde un primer plano se realiza un acercamiento al desarrollo de la historia de la objeción de conciencia y posteriormente se centra en el ámbito sanitario, más concretamente en los sectores del aborto, la eutanasia y las transfusiones de sangre desde la regulación legislativa aplicable en cada ámbito. Además, en la estructura del trabajo se diferencia su afectación en el ámbito nacional y europeo. El trabajo finaliza a través de la exposición del posicionamiento de diferentes entidades religiosas para lograr un entendimiento en sus argumentos a la hora de presentar una objeción de conciencia. La finalidad es indagar y analizar un tema complejo y conflictivo que adquiere una dificultad mayor cuando se presenta ante circunstancias sanitarias, y así conseguir visibilidad del marco legislativo, los fundamentos argumentativos y su impacto en la sanidad.Throughout this thesis, an analysis of conscientious objection in the healthcare field will be carried out, it has been considered legal and ethical aspects. Firstly, an approach is made to the development of the history of conscientious objection, and then it is focused on the healthcare field, more specifically on the sectors of abortion, euthanasia and blood transfusions from the legislative regulation applicable in each area. In addition, the structure of this work differentiates between its impact at the national and European scope. The paper concludes with the exposition of different religious entities position in order to achieve an understanding of their arguments when presenting a conscientious objection. The aim is to investigate and analyze a complex and conflictive issue that acquires a greater difficulty when it is presented in health circumstances, and thus achieve visibility of the legislative framework, the argumentative foundations and its impact on health

    VALIDACIÓN DEL PUNTAJE DE DIFICULTAD PARA ANESTESIA ESPINAL DE ATALLAH EN PACIENTE PROGRAMADO PARA CIRUGÍA DE RODILLA Y TOBILLO EN EL CENTRO MÉDICO ISSEMYM ECATEPEC

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    La anestesia espinal es muy utilizada en muchos procedimientos quirúrgicos. Los múltiples intentos en colocar la aguja puede causar disconfort, mayor incidencia de hematoma espinal, cefalea postpunción dural y trauma a estructuras neurales

    Body and diet as sales pitches: Spanish teenagers’ perceptions about influencers’ impact on ideal physical appearance

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    This project sits at the intersection of three axes: (a) influencers as the increasing focus of minors’ attention and trust online, (b) sponsored content about eating habits and physical appearance produced by these influencers, and (c) minors’ ability to discern and identify the persuasive intent of said content. The usefulness of analyzing the interplay of these three axes lies in the impact that consumption of this content has on minors’ self-esteem and on the adoption of certain habits that can directly impact their personal well-being. For this reason, this project seeks to provide insight into the social imaginary that influencers’ sponsored speech creates in minors regarding their physical appearance. To this end, a qualitative study with 12 focus groups of minors aged 11–17 years of age who reside in Spain was proposed. Notable among the key results was that the interviewees recognize that they primarily receive commercial messages about food and products related to physical appearance, such as makeup or clothing, from influencers; likewise, they are aware of persuasive tactics used on social networks, such as the construction of a perfect, aspirational world, which minors absorb and accept as part of the digital environment and end up incorporating into their behavior on social networks. This research aims to help demonstrate that teaching critical thinking is a long-term cultural investment that would make the citizens of tomorrow aware, engaged, and active

    Respuestas de los consumidores a los hoteles certificados medioambientalmente: el efecto moderador de la conciencia medioambiental sobre la formación de intenciones comportamentales

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    Este estudio desarrolla un modelo que explora la relación entre las prácticas verdes, la imagen verde, la conciencia medioambiental y las intenciones comportamentales de los clientes en un contexto hotelero certificado. Para testar empíricamente el modelo propuesto se realizaron 502 encuestas personales a clientes hoteleros en España. Los resultados muestran como las percepciones de los clientes sobre las prácticas verdes tienen un efecto directo y positivo en la imagen verde de las compañías hoteleras. Al mismo tiempo, esta imagen influye directa y positivamente sobre las intenciones de comportamiento de los clientes hacia los hoteles certificados medioambientalmente. También se demuestra que cuanto mayor sea la conciencia medioambiental de los consumidores, mayor será su intención de hospedarse, realizar comentarios positivos y pagar una prima por alojarse en hoteles certificados. Por último, la conciencia medioambiental ejerce un efecto moderador sobre la relación causal entre la imagen verde y las intenciones comportamentales.This study develops a model that investigates the relationship among green practices, green image, environmental consciousness and the behavioral intentions of customers in a certified hotel context. The study examines the direct and the moderating role of environmental consciousness in the formation of behavioral intentions based on green initiatives. To test the proposed model empirically, 502 personal surveys of hotel customers were conducted in Spain. The findings show that customer perceptions of green practices have a positive direct effect on a hotel´s green image. At the same time, this environmental image has positive direct effects on customer behavioral intentions towards certified hotels. The authors also found that the higher the environmental consciousness of consumers, the greater their intention to stay, to spread positive word-of-mouth and pay a premium for environmentally-certified hotels. Finally, consumer environmental consciousness also exerts a moderating effect on the causal relationship between green image and behavioral intentions

    Estrategia didáctica mediada por las TIC para el fortalecimiento de la comprensión lectora

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    Reading comprehension is understood as the ability of an individual to capture as objectively as possible what an author wants to convey through a written text and that this, in turn, is embedded within another broader concept, such as reading competence. From this point of reference, the purpose of the research was to develop a didactic strategy mediated by ICT to strengthen the reading comprehension of elementary school students; it is specifically contextualized in the Rodrigo de Bastidas District Educational Institution in Santa Marta, Magdalena, Colombia. We worked under a mixed approach and a descriptive-explanatory type of research with a pre-experimental design. For which a sample composed of 28 students and 6 teachers was selected in a nonprobabilistic and intentional way. A reading comprehension pre-test was applied to students, an observation sheet and a structured interview to teachers and, finally, a reading comprehension post-test and questionnaire were applied to students and teachers. Among the results, it is highlighted that, once the strategy was applied with the use of ICT, the students improved reading comprehension with respect to the results made in the diagnosis; that is, at the literal and inferential level there was an increase in the average performance from 39% to 53% and 25% to 57% respectively; and the critical level improved the high performance from 36% to 57%. As a conclusion, it was determined that the application of teaching strategies mediated by ICT strengthens reading comprehension, develops skills and abilities in students that contribute to the improvement of the reading process.La comprensión lectora es entendida como la capacidad de un individuo de captar lo más objetivamente posible lo que un autor quiere transmitir a través de un texto escrito y que ésta a su vez, se encuentra inmersa dentro de otro concepto más amplio, como lo es la competencia lectora. Desde este referente, la investigación tuvo como propósito desarrollar una estrategia didáctica mediada por las TIC para el fortalecimiento de la comprensión lectora de los estudiantes de básica primaria; específicamente se contextualiza en la Institución Educativa Distrital Rodrigo de Bastidas de Santa Marta, Magdalena, Colombia. Se trabajó bajo un enfoque mixto y un tipo de investigación descriptivo- explicativo con diseño preexperimental. Para lo cual se seleccionó de manera no probabilística e intencional una muestra compuesta por 28 estudiantes y 6 docentes. Se aplicó un pretest de comprensión lectora a estudiantes, una ficha de observación y una entrevista estructurada a docentes y, por último, se aplicó un post test de comprensión lectora y cuestionario a estudiantes y docentes. Entre los resultados se destaca que, una vez aplicada la estrategia con el uso de las TIC, los estudiantes mejoraron la comprensión lectora con respecto a los resultados realizados en el diagnóstico; es decir, en el nivel literal e inferencial hubo aumento en el desempeño medio de 39% a 53% y 25% a 57% respectivamente; y el nivel crítico mejoró el desempeño alto de 36% a 57%. Como conclusión se determinó que la aplicación de estrategias didácticas mediadas por las TIC fortalece la comprensión lectora, desarrolla habilidades y capacidades en los estudiantes que contribuyen al mejoramiento del proceso lector

    Licenciatura en administración : casos para el curso de mercadotecnia III

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    59 p.Este documento "trata de [la] Mercadotecnia Internacional, campo que requiere de recurrir a información diversa de muchas naciones. Los autores, consideran que el estudio de caso es una estrategia didáctica de enseñanza-aprendizaje, que tiene como objetivo motivar e involucrar a los estudiantes; así como desarrollar en ellos, niveles superiores de aprendizaje. Esta manera de prácticas, ha sido ampliamente desarrollada en la formación de profesionales, teniendo una notable aplicación en el ámbito de las ciencias sociales, por lo cual se pueden anotar las reflexiones siguientes: El estudio de caso, consiste en proporcionar una serie de situaciones problemáticas de la vida real para que se estudien y analicen. De esta manera, se pretende que los estudiantes aprendan a generar soluciones. Se tiene como eje central al alumno y busca que éste aprenda mediante su participación activa, ya que será él quien tendrá que buscar más información para dar soluciones, o según el caso, justificar las respuestas. El caso se presenta con una narración, se describe cómo aconteció el suceso. Al elegir un caso para el desarrollo de un tema en una disciplina o área de conocimiento, se pudieran involucrar aspectos de otras disciplinas o áreas de conocimiento. Ya que los problemas o los hechos de la realidad, difícilmente se pueden circunscribir a un campo del conocimiento. Por lo tanto, los casos son esencialmente interdisciplinarios. Los casos presentan dilemas, situaciones problemáticas de difícil o compleja resolución, lo que estimula el pensamiento y la reflexión y hace comprensible la enseñanza de los diferentes temas de una unidad de enseñanza-aprendizaje (UEA). No se trata solamente de elegir una estrategia, sino de plantear verdaderos problemas."Tema I. Las tendencias de los mercados internacionales como oportunidades comerciales -- Tema II. La mercadotecnia internacional -- Tema III. El entorno de los mercados internacionales -- Tema IV. Sistema de Información de Mercadotecnia Internacional -- Tema V. Estrategias para operar en segmentos de mercados internacionales

    Aplicación de un sistema de información geográfica al análisis del medio físico en el parque natural Los Alcornocales. Aproximación a una cartografía geomorfológica a partir de un modelo digital de elevaciones

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    En el presente trabajo se ha realizado un análisis morfológico del medio físico del Parque Natural Los Alcornocales. Para ello se ha utilizado como fuente de información básica un modelo digital de elevaciones, a partir del cual se han estudiado distintas características topográficas, como la pendiente, el relieve local y la curvatura del terreno. El análisis integrado de estos parámetros mediante SIG ha permitido la clasificación morfológica automática del terreno.A morphological analysis of the physical way of the Natural Park Los Alcornocales has been carried out in this paper. With this goal, a digital elevation model has been used as the main source of basic information, so that different topographic characteristics have been studied, as the slope, the local relief and the curvature of the surface. The integrated analysis of these parameters by GIS has allowed the morphologic automatic classification of the are
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