GUMCARS: General User Model for Context-Aware Recommender Systems

Context-Aware Recommender Systems (CARS) are extensions of traditional recommender systems that use information about the context of the user to improve the recommendation accuracy. Whatever the specific algorithm exploited by the CARS, it can provide high-quality recommendations only after having modeled the user and context aspects. Despite the importance of the data models in CARS, nowadays there is a lack of models and tools to support the modeling and management of the data when developing a new CARS, leaving designers, developers and researchers the work of creating their own models, which can be a hard and time-consuming labor, and often resulting in overspecialized or incomplete models. In this paper, we describe GUMCARS - a General User Model for Context-Aware Recommender Systems, where the main goal is to help designers and researchers when creating a CARS by providing an extensive set of User, Context and Item aspects that covers the information needed by different recommendation domains. To validate GUMCARS, two experiments are performed; first, the completeness and generality of the model are evaluated showing encouraging results as the proposal was able to support most of the information loaded from real-world datasets. Then the structural correctness of the model is assessed, the obtained results strongly suggest that the model is correctly constructed according to Object-Oriented design paradigm

Factores asociados a la ictericia neonatal y su respuesta al tratamiento, en recién nacidos del Hospital Vicente Corral Moscoso de la ciudad de Cuenca, durante el año 2020

El presente estudio busca determinar los factores asociados al desarrollo de la ictericia neonatal y como los recién nacidos responden al tratamiento, en el área de Neonatología del Hospital Vicente Corral Moscoso, durante el año 2020, mediante el análisis estadístico de variables obtenidas a partir de la revisión de Historias clínicas y resultados de laboratorio. Para determinar la relación entre las variables estudiadas se aplicó el test estadístico Chi- Cuadrado, el comportamiento de las variables que mostraron correlación y la respuesta al tratamiento se analizó utilizando los programas SPSS v 26.0 y Excel 2016. Las variables determinadas como factores asociadas al desarrollo de ictericia neonatal fueron: Edad gestacional, Peso, Incompatibilidad de grupo sanguíneo, Enfermedades de la madre durante el embarazo, Tipo de parto y Complicaciones, Traumas obstétricos, Comorbilidad y Tipo de alimentación. Respecto al tratamiento, la medida terapéutica más frecuentemente aplicada fue Fototerapia Simple, el mayor descenso de la concentración sérica de bilirrubina se logró con el empleo de Fototerapia Intensiva + Fenobarbital, reservado para pacientes con mayor riesgo. El principal efecto adverso registrado fue la deshidratación, el tratamiento que presentó mas efectos adversos fue la Fototerapia Intensiva + Fenobarbital, mientras que la Fototerapia simple fue el tratamiento que menos efectos adversos reportó. Los resultados obtenidos demuestran que la ictericia neonatal es un importante problema de salud pública por la elevada prevalencia encontrada, gran parte de los neonatos fueron diagnosticados posterior a las 24 horas de nacido y estaban en riesgo de desarrollar un cuadro encefalopatía bilirrubínica, además se observaron discrepancias entre la Evaluación clínica y los resultados de laboratorio, lo que tiene relación con la alta tasa de reingresos asociada a este trastorno.The present study seeks to determine the factors associated with the development of jaundice and how newborns respond to treatment, in the Neonatology area of the Vicente Corral Moscoso Hospital, during the year 2020, through the statistical analysis of variables obtained from the review of clinical histories and laboratory results. To determine the relationship between the variables studied, the Chi-Square statistical test was applied, the behavior of the variables that showed correlation and the response to treatment was analyzed using the following programs: SPSS v 26.0 and Excel 2016. The variables determined as factors associated with the development of neonatal jaundice were: gestational age, weight, blood group incompatibility, maternal illness during pregnancy, type of delivery and complications, obstetric trauma, comorbidity and type of feeding. Regarding treatment, the most frequently applied therapeutic measure was Simple Phototherapy, the greatest decrease in serum bilirubin concentration was achieved with the use of Intensive Phototherapy + Phenobarbital, reserved for patients at higher risk. The main adverse effect recorded was dehydration, the treatment that presented the most adverse effects was Intensive Phototherapy + Phenobarbital, while Simple Phototherapy was the treatment that reported the least adverse effects. The results obtained show that neonatal jaundice is an important public health problem due to the high prevalence found, most of the neonates were diagnosed after 24 hours of birth and were at risk of developing bilirubin encephalopathy, in addition discrepancies were observed between the clinical evaluation and laboratory results, which is related to the high rate of readmissions associated with this disorder.Bioquímico FarmacéuticoCuenc

Estéticas no visuales: procesos creativos en las artes plásticas desde personas con discapacidad visual

El presente proyecto pretende realizar una investigación de campo que permita comprender la estética no visual en el arte plástico. Asumiendo un carácter crítico desde la percepción de los diferentes sentidos por parte de las personas con discapacidad visual, en todas las variables existentes del fenómeno. La intención es crear un proyecto en donde un grupo focal pueda generar propuestas resultantes de prácticas artísticas que evidencien la sensibilidad estética en la plástica contemporánea.The present project aims to carry out an investigation on non-visual aesthetics, assuming a critical character in the face of the perception of the senses by people with visual disabilities, in all the existing variables of the phenomenon. The intention is to create a project where a focus group can generate proposals resulting from artistic practices that demonstrate aesthetic sensibility in contemporary art.Licenciado en Artes VisualesCuenc

Analysis of the Sustainable Development Goals (SDG) in a selected group of European countries

For this year 2020, the European Union will have managed to reach its objectives within the climate and energy framework, bringing them closer to achieving the eradication of this environmental crisis. Since 1987, the words "sustainability" and "development" have been present in every plan to combat various world problems, one of them being climate change. In 2015, the Sustainable Development Goals (SDG) were established, 17 goals aimed at solving these global problems, 6 of those being related to the environment. Apart from the SDG’s, the EU has established its own climate and energy targets to sustain the achievement of these 6 environmental related goals. The analysis of the achieved progress of these targets in relations to the SDG’s is the main purpose of this project. While doing a descriptive analysis, a multi factorial analysis has been made to see the similarities and characteristic between different EU countries. The results revealed great progress achieved since the implementation of the SDG's, however not all member states have progressed at the same pace or to the same degree as others, for example the states most affected by the 2008 financial crisis have had great difficulty achieving the goals for this year 2020. Nevertheless, small progress is better than no progress at all

Un sistema para diseñar de presentaciones para promover la interacción profesor-audiencia en clases

Slides are material that supports the information expressed by a speaker. Slides have increased their importance in education due to the multimedia information that we can represent in them and their easy access. Most conference or class presentations do not engage participants in an adequate way. Therefore, this research aims to develop a presentation and survey system in a real-time web application that allows interaction between the teacher-lecturer and the audience in an active way during the session. This research evaluated the system from three approaches: usability, acquired knowledge and user experience. The results suggested that SlideCheck could be an excellent option to encourage students to participate during classes, improve knowledge acquisition and improve interaction with the teacher during the session, making the lesson more dynamic.Las diapositivas son material que apoya la información expresada por un conferencista. Las diapositivas han aumentado su importancia en la educación debido a la información multimedia que podemos representar en ellas y su fácil acceso. La mayoría de las presentaciones en conferencias o clases no involucran a los participantes de una forma adecuada. Por lo que, esta investigación tiene como objetivo desarrollar un sistema de presentación y encuestas en una aplicación web en tiempo real que permita la interacción entre el profesor-conferencista y la audiencia de una manera más activa durante la sesión. Esta investigación evaluó el sistema desde tres enfoques: usabilidad, conocimiento adquirido y experiencia de usuario. Los resultados sugirieron que SlideCheck podría ser una excelente opción para alentar a los estudiantes a participar durante las clases, mejorar la adquisición de conocimientos y mejorar la interacción con el profesor durante la sesión, haciendo que la lección sea más dinámica

ASHuR: Evaluation of the Relation Summary-Content Without Human Reference Using ROUGE

In written documents, the summary is a brief description of important aspects of a text. The degree of similarity between the summary and the content of a document provides reliability about the summary. Some efforts have been done in order to automate the evaluation of a summary. ROUGE metrics can automatically evaluate a summary, but it needs a model summary built by humans. The goal of this study is to find a quantitative relation between an article content and its summary using ROUGE tests without a model summary built by humans. This work proposes a method for automatic text summarization to evaluate a summary (ASHuR) based on extraction of sentences. ASHuR extracts the best sentences of an article based on the frequency of concepts, cue-words, title words, and sentence length. Extracted sentences constitute the essence of the article; these sentences construct the model summary. We performed two experiments to assess the reliability of ASHuR. The first experiment compared ASHuR against similar approaches based on sentences extraction; the experiment placed ASHuR in the first place in each applied test. The second experiment compared ASHuR against human-made summaries, which yielded a Pearson correlation value of 0.86. Assessments made to ASHuR show reliability to evaluate summaries written by users in collaborative sites (e.g. Wikipedia) or to review texts generated by students in online learning systems (e.g. Moodle)

Exploring the effect of the O -(1-heptylnonyl) benzene sulfonate surfactant on the nature of the linear hydrocarbons/water interface by means of an atomistic molecular dynamics simulation

Using molecular dynamics simulations a systematic study of the binding energy per cross sectional area for the water/n-alkane (hexane, octane, decane, dodecane and tetradecane) interfaces was performed. The effect of the Sodium p-(1-heptylnonyl) benzene sulfonate surfactant, on the adhesion forces of the water/n-hydrocarbon (decane, undecane, dodecane, and tetradecane) interfaces was studied. Scanning of the binding energy per area against n-alkanes shows that the magnitude of this parameter for the surfactant tail-alkane interactions at the interface systematically increases with the chain length of the alkane, whereas it shows a maximum at undecane for the water-surfactant head interactions at the interface. This maximum of head adhesion forces thus agrees with the reported minimum value of the interfacial tension at undecane for the p-(1-heptylnonyl) benzene sulfonate, suggests that for the water/alkane interface it is this trend in surfactant head adhesion at the interface that defines that interfacial tension minimum value

Carlos Manuel Valdés. Los bárbaros, el rey, la Iglesia. Los nómadas del noreste novohispano frente al Estado español

Review about the book Los bárbaros, el rey, la Iglesia. Los nómadas del noreste novohispano frente al Estado español.Carlos Manuel Valdés. Los bárbaros, el rey, la Iglesia. Los nómadas del noreste novohispano frente al Estado español. México: Fondo de Cultura Económica, 2022, 356 pp. ISBN 978607167403

Los múltiples significados de lo escolar desde la visión de la nueva ruralidad

El significado de lo escolar que los jóvenes de zonas rurales construyen en torno al bachillerato es el resultado de la interacción con su entorno tanto a nivel escolar como de su realidad social, dando lugar a comportamientos heterogéneos que surgen de la interrelación entre las prácticas culturales y prácticas pedagógicas que le dan sentido a lo escolar. Desde un enfoque etnográfico, de una investigación que permitió conservar la riqueza de las relaciones particulares del contexto, se muestra el significado que los jóvenes rurales le otorgan a estudiar el bachillerato y sus expectativas al egresar, aunado a la satisfacción con la escuela y sus necesidades de formación académica y profesional. Por lo tanto, fue importante tomar como referentes teóricos los estudios socioculturales que tienen su origen en la teoría de Lev Vygotsky, la línea de investigación sobre juventud y escolarización en México, además del enfoque de los “Nuevos Estudios de Literacidad”; que permitieron dar sustento a los modos culturales de concebir la educación y evidenciar los significados otorgados a la escuela, como un espacio para el aprendizaje, un lugar de formación propedéutica, un espacio para la promoción social, un lugar de reconocimiento social y un espacio de vida juvenil

Experimental Enhancement of Feelings of Transcendence, Tenderness, and Expressiveness by Music in Christian Liturgical Spaces

In western cultures, when it comes to places of worship and liturgies, music, acoustics and architecture go hand in hand. In the present study, we aimed to investigate whether the emotions evoked by music are enhanced by the acoustics of the space where the music was composed to be played on. We explored whether the emotional responses of western naïve listeners to two vocal pieces from the Renaissance, one liturgical and one secular, convolved with the impulse responses of four Christian temples from the United Kingdom, were modulated by the appropriate piece/space matching. In an alternative forced choice task where participants had to indicate their preference for the original recording of the piece (not convolved with any temple-like acoustics) vs. the convolved one, no significant differences were found. However, in the tasks where participants rated their emotional in response to each piece and acoustic condition, the factorial ANCOVA analyses performed on the results revealed significant effects. We observed that, across pieces and spaces, participants found the temple-like acoustics as more transcendent, compared to the acoustics of the original version of the pieces. In addition, they rated the secular piece as more tender and the liturgical piece as more expressive in its original versions, compared to the convolved ones. We conclude that the acoustic signature of the four Christian temples causes an exaltation of certain emotions on listeners, although this effect is not associated to one or another musical piece. Keywords: archaeoacoustics; auralization; emotion; music; psychoacoustics