Heuristic evaluation of an IoMT system for remote health monitoring in senior care

This paper presents the usability assessment of the design of an Internet of Medical Things (IoMT) system for older adults; the evaluation, using heuristics, was held early on the design process to assess potential problems with the system and was found to be an efficient method to find issues with the application design and led to significant usability improvements on the IoMT platform

Recent Progress in the Development of Composite Membranes Based on Polybenzimidazole for High Temperature Proton Exchange Membrane (PEM) Fuel Cell Applications

[EN] The rapid increasing of the population in combination with the emergence of new energy-consuming technologies has risen worldwide total energy consumption towards unprecedent values. Furthermore, fossil fuel reserves are running out very quickly and the polluting greenhouse gases emitted during their utilization need to be reduced. In this scenario, a few alternative energy sources have been proposed and, among these, proton exchange membrane (PEM) fuel cells are promising. Recently, polybenzimidazole-based polymers, featuring high chemical and thermal stability, in combination with fillers that can regulate the proton mobility, have attracted tremendous attention for their roles as PEMs in fuel cells. Recent advances in composite membranes based on polybenzimidazole (PBI) for high temperature PEM fuel cell applications are summarized and highlighted in this review. In addition, the challenges, future trends, and prospects of composite membranes based on PBI for solid electrolytes are also discussed.The authors acknowledge the Spanish Ministerio de Economía y Competitividad (MINECO) for the financial support under the project ENE/2015-69203-R.Escorihuela, J.; Olvera-Mancilla, J.; Alexandrova, L.; Del Castillo, LF.; Compañ Moreno, V. (2020). Recent Progress in the Development of Composite Membranes Based on Polybenzimidazole for High Temperature Proton Exchange Membrane (PEM) Fuel Cell Applications. Polymers. 12(9):1-41. https://doi.org/10.3390/polym12091861S141129Kraytsberg, A., & Ein-Eli, Y. (2014). Review of Advanced Materials for Proton Exchange Membrane Fuel Cells. Energy & Fuels, 28(12), 7303-7330. doi:10.1021/ef501977kLi, Q., Jensen, J. O., Savinell, R. F., & Bjerrum, N. J. (2009). High temperature proton exchange membranes based on polybenzimidazoles for fuel cells. 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Factores familiares asociados a los Trastornos Alimentarios: una revisión

From a multifactorial perspective this study present a review about the family factors associated to eating disorders, considering theoretical and empirical contributions in national and international journals articles . The find of the research about the Eating Disorders and Family, indicate that the principal topics investigated are: family functioning, daughters and fathers relationships, stressful experiences, family psychopathology, attitudes and behaviors about weigh, eating and body image in the affected families. We conclude recognizing the heterogeneity of the families with Eating Disorders and the complex combination of family factors associated to eating psychopathology. More research is suggested about: family functioning in EDNOS patients, the father´s role, protective factors, coping stress, body image and family food

Enterobacteriaceae bacteremias among cancer patients: an observational cohort study

SummaryBackgroundEnterobacteriaceae bacteremia is a common complication in patients with neoplasm. The cancer itself, chemotherapy-induced immunosuppression, and other cancer-related procedures play a role as predisposing factors for this condition. However, despite the clear association between cancer and Enterobacteriaceae bacteremia, the distinctive clinical characteristics of patients with cancer presenting with Enterobacteriaceae bacteremia have not been well established.MethodsThe population studied was a prospective cohort of adult hospitalized patients with Enterobacteriaceae bacteremia in a tertiary care hospital. We compared the clinical variables and microbiological features between patients with an underlying neoplasm (n=203) and those without (n=259). STATA software was used for statistical association analysis.ResultsIn a bivariate analysis, older age, prior exposure to aminopenicillins, fewer days of symptoms, biliary source of bacteremia, greater severity of APACHE II score, lower white blood cell and platelet counts, and the presence of Klebsiella pneumoniae were more common in the neoplasm group. In a multivariable analysis, K. pneumoniae bacteremia (odds ratio (OR) 6.13, 95% confidence interval (CI) 1.65–22.71; p=0.007), APACHE II score (OR 1.18, 95% CI 1.05–1.34; p=0.007), and exposure to aminopenicillins (OR 28.84, 95% CI 1.94–429.3; p=0.015) were associated with neoplasm. K. pneumoniae bacteremia was more commonly present in patients with lung and gastrointestinal cancers.ConclusionsWe have confirmed the association of K. pneumoniae bacteremia with underlying neoplastic disease, especially with gastrointestinal malignancies, which may allow stratification for initial empiric antibiotic therapy in this subset of patients. Prior exposure to aminopenicillins in the neoplasm group might contribute to this finding

Utilización de la cestilla de Moss en el tratamiento de fracturas patológicas vertebrales

Las fracturas patológicas vertebrales pueden inducir radículo o mielopatía compresiva, inestabilidad y deformidad, de tal forma que el objetivo del tratamiento consistiría en restablecer lo más rápidamente posible la anatomía y función. En este sentido la utilización de una malla cilindrica de titanio como la «cestilla de Moss» consigue una estabilidad inmediata y permite la carga precoz. Presentamos un estudio retrospectivo de 6 pacientes afectos de fractura patológica vertebral intervenidos mediante abordaje anterior y estabilización instrumentada combinada con la «cestilla de Moss» rellena de injerto óseo o cemento acrílico. La valoración clínica se realiza subjetivamente por la presencia de dolor y neurológicamente según los grados de Frankel pre y postoperatorios. Radiológicamente se valora la corrección de la cifosis/lordosis/acuñamiento según el método de Cobb. La utilización de la «cestilla de Moss» en fracturas patológicas vertebrales consigue una estabilidad completa sin dependencia de la fusión ósea.Pathological spinal fractures could induce neurological deficit, instability and deformity. Therefore, the objective of the treatment consists of re-establishing the most quickly possible the anatomy and normal function. In this sense, the utilization of a cylindrical mesh of titanium, like the Moss's mesh, provide an immediate stability permiting early loading. We report a retrospective study of 6 patients with pathological spinal fracture operated by anterior decompression and spine stabilization using the Moss's mesh padded of bone graft acrylic cement. Clinical assessment was made subjectively for the presence of pain and neurologic ally according to pre and postoperatively Frankel's grades. The correction of the kyphosis, lordosis and vertebral collapse was assessed according to the Cobb's method. The utilization of the Moss's mesh in pathological spinal fractures provides a complete stability without dependence of the status of bone fusion

SAgric-IoT: an IoT-based platform and deep learning for greenhouse monitoring

The Internet of Things (IoT) and convolutional neural networks (CNN) integration is a growing topic of interest for researchers as a technology that will contribute to transforming agriculture. IoT will enable farmers to decide and act based on data collected from sensor nodes regarding field conditions and not purely based on experience, thus minimizing the wastage of supplies (seeds, water, pesticide, and fumigants). On the other hand, CNN complements monitoring systems with tasks such as the early detection of crop diseases or predicting the number of consumable resources and supplies (water, fertilizers) needed to increase productivity. This paper proposes SAgric-IoT, a technology platform based on IoT and CNN for precision agriculture, to monitor environmental and physical variables and provide early disease detection while automatically controlling the irrigation and fertilization in greenhouses. The results show SAgric-IoT is a reliable IoT platform with a low packet loss level that considerably reduces energy consumption and has a disease identification detection accuracy and classification process of over 90%

The practices of the teachers in the B.A. in Modern Languages at Pontificia Universidad Javeriana when approaching pronunciation from the Elementary to the Pre-intermediate level of English classes

La relevancia que se le ha dado a la pronunciación en las clases de EFL ha aumentado o disminuido de acuerdo con el enfoque histórico a través del cual se imparten las clases de idiomas. En algunos enfoques, la pronunciación juega un papel crucial en el proceso de aprendizaje, mientras que en otros depende de los maestros decidir cuándo y cómo enseñarlo de acuerdo con los objetivos de la clase. Este estudio tuvo como objetivo identificar, analizar y describir las prácticas para enseñar pronunciación de cuatro profesores en los primeros tres niveles de inglés del programa de Licenciatura en Lenguas Modernas con Énfasis en Inglés y Francés de la Pontificia Universidad Javeriana. Para recopilar los datos, fueron utilizados tres instrumentos: entrevistas iniciales, observaciones de clase (con notas de campo) y encuestas finales. Después del proceso de codificación y un análisis exhaustivo de la información recopilada, encontramos que las creencias de los profesores con respecto a la pronunciación están en parte alineadas con lo que se observó. Esto significa que los profesores tienen ideas firmes sobre cómo se debe abordar la pronunciación, pero en su práctica diaria, encuentran muchas dificultades para hacerlas realidad. Además, descubrimos que, en todos los casos, las prácticas para enseñar y abordar la pronunciación dependen completamente de la elección del profesor, ya que no hay un componente de pronunciación explícito en el Currículum de inglés de la Licenciatura. El estudio aporta una visión más fresca sobre el tema, ya que esta habilidad apenas se aborda en los proyectos de investigación de la Licenciatura. Finalmente, esta investigación puede allanar el camino para comenzar a considerar incluir la pronunciación como un componente más "activo" del programa de estudios y ayudar a los profesores a tener enfoques más sistemáticos para enseñarla y evaluarla. Palabras claves: enseñanza de la pronunciación, creencias de los profesores, prácticas de los profesores.The relevance given to pronunciation in EFL classrooms has increased or decreased according to the historical approach through which the language classes are delivered. In some approaches, pronunciation plays a crucial role in the learning process, while in others it is up to the teachers to decide when and how to teach it according to the class objectives. This study aimed at identifying, analyzing and describing the practices that four teachers in the first three levels of English of the B.A. in Modern Languages with an Emphasis on English and French Program at Pontificia Universidad Javeriana used to teach pronunciation. To gather the data, we sued three instruments: initial interviews, class observations (with field notes), and final surveys. After the coding process and a thorough analysis of the gathered information, we found that the teachers’ beliefs regarding pronunciation are somewhat aligned to what was observed. This somewhat means that teachers hold firm ideas about how pronunciation should be addressed, but in their daily practice, they find many difficulties to make them come true. Additionally, we found that, in all the cases, the practices to teach and address pronunciation depend entirely on the teacher’s choice, as there is not an explicit pronunciation component in the B.A. English Curricula. The study brings a fresher view on the matter, as this skill is hardly addressed in research projects of the B.A. Finally, it may pave the way to start considering including pronunciation as a more ‘active’ component of the syllabus and to help teachers have more systematic approaches to teach and to assess it. Keywords: teaching pronunciation, teachers’ beliefs, teachers’ practices.Licenciado (a) en Lenguas ModernasPregrad