Parallel computing technologies in video stabilization for teaching purposes

[Abstract] In this paper, the development of a video-stabilization program is described as part of the training in the subject Parallel Architectures in the Degree in Computer Engineering of the University of Vigo. The purpose is to take advantage of the parallelism methodologies in processors to teach students about computer vision and use it in applications like vibration sensors for maintenance in Industry 4.0 or computer vision for the autonomous vehicle. The main tool to implement this program is the C programming language and the OpenCV libraryMinisterio de Economía y Competitividad; Project No 586035- EPP-1-2017-1-DZ-EPPKA2-CBHE-JPMinisterio de Ciencia y Tecnología; DPI2016-79278-C2-2-

Analysis of the geometrical influence of ring-opening samples on arterial circumferential residual stress reconstruction

This work consists of analyzing the impact of geometrical features (thickness and curvature) on the estimation of circumferential residual stresses in arteries. For this purpose, a specific sample of lamb abdominal artery is chosen for analysis and, through computational tools based on Python libraries, the stress-free geometry is captured after the ring opening test. Numerical simulations are then used to reconstruct the sample in order to estimate the circumferential residual stresses. Then, four stress-free geometry models are analyzed: an ideal geometry, i.e., constant curvature and thickness; a constant curvature and variable thickness geometry; a variable curvature and constant thickness geometry; and a variable curvature and thickness geometry. The numerical results show that models perform well from a geometric point of view, where the most different feature was the closed outer perimeter that differs about 14% from the closed real sample. As far as residual stress is concerned, differences up to 198% were found in more realistic models taking a constant curvature and thickness model as reference. Thus, the analysis of a realistic geometry with highly variable curvature and thickness can introduce, compared to an idealized geometry, significant differences in the estimation of residual stresses. This could indicate that the characterization of arterial residual stresses is not sufficient when considering only the opening angle and, therefore, it is also necessary to incorporate more geometrical variables

An evaluation of the prevalence of vancomycin-resistant enterococci (VRE) and methicillin-resistant Staphylococcus aureus (MRSA) in hospital food

Los artículos que componen este libro ilustran desde múltiples puntos de vista el concepto de patrimonio biocultural. El contenido de la publicación se estructura en tres espacios sintetizados en las problemáticas asociadas al patrimonio biológico y cultural, el territorio y las disputas territoriales, la construcción identitaria y los problema de carácter socio-históricos de las comunidades afro indoamericanas. Ello permite, por un lado, obtener una aproximación contrastante, holística y compleja de la realidad latinoamericana y por otra lado sumar aportes a un concepto en construcción que no esconde su intencionalidad emancipadora.Agradecimientos; Introducción; PATRIMONIO BIOCULTURAL: Juan Pohlenz Córdova / La disputa por el patrimonio biocultural. Un acercamiento desde Mesoamérica; León Enrique Ávila Romero / La disputa por el patrimonio biocultural, la economía verde y sus impactos en los pueblos indígenas; Bernardo Javier Tobar / Lugares de vida y registros de la memoria biocultural en el Pacífico sur-colombiano; Iskra García Vázquez, Rocío Becerra Montané y Gimena Pérez Ortega / Uso, aprovechamiento social y conservación de las plantas medicinales en México; Kelly Giovanna Muñoz Balcázar / Transformaciones del territorio y el patrimonio biocultural a partir del proceso de industrialización. Recuperación de la finca tradicional en el municipio de Corinto, vereda La Paila; TERRITORIO: Johnny L. Ledezma Rivera / Reflexiones sobre las concepciones y visiones de lo que se entiende por territorio; Sindy Hernández Bonilla / ¿Justicia o legalidad para los q’eqchi’es? Agustín Ávila Romero / Turismo y pueblos indígenas de México: despojo y veredas de apropiación comunitaria; SOCIEDADES AFROINDOAMERICANAS EN MOVIMIENTO Johnny L. Ledezma Rivera / Construcción e implementación de las autonomías indígenas en Bolivia: avances y retrocesos; Stefano Claudio Sartorello / Educar para el arraigo sociocultural. El perfil de egreso de alumn@s indígenas en una propuesta educativa intercultural y bilingüe en Chiapas; Elena Pareja y Virginia Cornalino / La cultura afrodescendiente en la constitución del Estado-nación (1870-1900). La reconstrucción de los mapas de identidad en la frontera uruguayo-brasileña; Karla Chagas y Natalia Stalla / Mano de obra negra en el Estado Oriental: una mirada del trabajo esclavo y libre a través del análisis de casos; Diego E. Piñeiro y Joaquín Cardeillac / Los afro-descendientes en el campo uruguayo; Soledad Figueredo y Matías Carámbula Pareja / Puntos en el mapa: ensayo sobre identidad, inmovilidad y cultura de la población afrodescendiente en el medio rural uruguayo

Predictive Power of the "Trigger Tool" for the detection of adverse events in general surgery: a multicenter observational validation study

Background In spite of the global implementation of standardized surgical safety checklists and evidence-based practices, general surgery remains associated with a high residual risk of preventable perioperative complications and adverse events. This study was designed to validate the hypothesis that a new “Trigger Tool” represents a sensitive predictor of adverse events in general surgery. Methods An observational multicenter validation study was performed among 31 hospitals in Spain. The previously described “Trigger Tool” based on 40 specific triggers was applied to validate the predictive power of predicting adverse events in the perioperative care of surgical patients. A prediction model was used by means of a binary logistic regression analysis. Results The prevalence of adverse events among a total of 1,132 surgical cases included in this study was 31.53%. The “Trigger Tool” had a sensitivity and specificity of 86.27% and 79.55% respectively for predicting these adverse events. A total of 12 selected triggers of overall 40 triggers were identified for optimizing the predictive power of the “Trigger Tool”. Conclusions The “Trigger Tool” has a high predictive capacity for predicting adverse events in surgical procedures. We recommend a revision of the original 40 triggers to 12 selected triggers to optimize the predictive power of this tool, which will have to be validated in future studies

Tecnología HPC en la UNdeC como motor de ciencia

En la actualidad, para abordar problemas de mayor tamaño y complejidad, los estudios de ciencia básica y aplicada utilizan Computación de Altas Prestaciones (HPC - High Performance Computing). El HPC permite mejorar la capacidad, velocidad y precisión en el procesamiento de datos. Con el proyecto que da origen a este trabajo se abordan seis estudios desde la perspectiva del HPC, para explorar los aspectos centrales del paralelismo aplicado desde las Ciencias de la Computación en otras disciplinas. Algunos de estos estudios se realizan exclusivamente en la Universidad Nacional de Chilecito, mientras que otros son en cooperación con otras instituciones nacionales y extranjeras. Entre estos, tres formalizan trabajos finales de postgrado. En todos los casos, el HPC es abordado a través de un proceso metodológico organizado para: - Consolidar una infraestructura de experimentación, desarrollo y producción de soluciones a problemas de HPC - Desarrollar las capacidades científico-tecnológicas del equipo - Fomentar la vinculación y transferencia con los sectores académico, social y productivo Cada problema abordado reúne entre sus integrantes investigadores especialistas en la disciplina del estudio, investigadores de Ciencias de la Computación y estudiantes en sus últimos años de formación de grado. Con esto, se está consolidando un grupo de investigación, desarrollo y transferencia que generará oportunidades de formación de recursos humanos, proveerá de servicios a la comunidad en el área de estudio y potenciará los vínculos de cooperación con otras instituciones.Red de Universidades con Carreras en Informátic

Impact of COVID-19 on cardiovascular testing in the United States versus the rest of the world

Objectives: This study sought to quantify and compare the decline in volumes of cardiovascular procedures between the United States and non-US institutions during the early phase of the coronavirus disease-2019 (COVID-19) pandemic. Background: The COVID-19 pandemic has disrupted the care of many non-COVID-19 illnesses. Reductions in diagnostic cardiovascular testing around the world have led to concerns over the implications of reduced testing for cardiovascular disease (CVD) morbidity and mortality. Methods: Data were submitted to the INCAPS-COVID (International Atomic Energy Agency Non-Invasive Cardiology Protocols Study of COVID-19), a multinational registry comprising 909 institutions in 108 countries (including 155 facilities in 40 U.S. states), assessing the impact of the COVID-19 pandemic on volumes of diagnostic cardiovascular procedures. Data were obtained for April 2020 and compared with volumes of baseline procedures from March 2019. We compared laboratory characteristics, practices, and procedure volumes between U.S. and non-U.S. facilities and between U.S. geographic regions and identified factors associated with volume reduction in the United States. Results: Reductions in the volumes of procedures in the United States were similar to those in non-U.S. facilities (68% vs. 63%, respectively; p = 0.237), although U.S. facilities reported greater reductions in invasive coronary angiography (69% vs. 53%, respectively; p < 0.001). Significantly more U.S. facilities reported increased use of telehealth and patient screening measures than non-U.S. facilities, such as temperature checks, symptom screenings, and COVID-19 testing. Reductions in volumes of procedures differed between U.S. regions, with larger declines observed in the Northeast (76%) and Midwest (74%) than in the South (62%) and West (44%). Prevalence of COVID-19, staff redeployments, outpatient centers, and urban centers were associated with greater reductions in volume in U.S. facilities in a multivariable analysis. Conclusions: We observed marked reductions in U.S. cardiovascular testing in the early phase of the pandemic and significant variability between U.S. regions. The association between reductions of volumes and COVID-19 prevalence in the United States highlighted the need for proactive efforts to maintain access to cardiovascular testing in areas most affected by outbreaks of COVID-19 infection

Development of a mosaic effect for teaching in the course of parallel architectures

Comunicación presentada a las XXXIX Jornadas de Automática, celebradas en Badajoz del 5 al 7 de Septiembre de 2018 y organizada por la Universidad de Extremadura.En este artículo presentamos el desarrollo de un efecto artístico de mosaico entre dos imágenes usado en la enseñanza de técnicas de paralelismo y visión por computador. La implementación del efecto con el uso de paralelismo a nivel de datos e instrucción, el lenguaje de programación C y la biblioteca OpenCV permite que el alumnado descubra las ventajas y limitaciones de este paradigma en el contexto de una aplicación de procesado de imágenes, que consideramos atractiva para el alumnado, brindándole conocimientos prácticos en ambos campos y contribuyendo a afianzar los teóricos.In this article we present the development of an artistic mosaic effect between two images used in the teaching of parallelism and computer vision techniques. The implementation of the effect with the use of parallelism, the programming language C and the OpenCV library allows students to discover the advantages and limitations of this paradigm in the context of an image processing application, which we consider attractive for students. , providing practical knowledge and contributing to improve the theorists.European Project “Argelian National Laboratory for Maintenance Education”. Project 586035-EPP-1-2017-1- DZ-EPPKA2-CBHE-JP.peerReviewe

Development of a mosaic effect for teaching in the course of parallel architectures

[Resumen] En este artículo presentamos el desarrollo de un efecto artístico de mosaico entre dos imágenes usado en la enseñanza de técnicas de paralelismo y visión por computador. La implementación del efecto con el uso de paralelismo a nivel de datos e instrucción, el lenguaje de programación C y la biblioteca OpenCV permite que el alumnado descubra las ventajas y limitaciones de este paradigma en el contexto de una aplicación de procesado de imágenes, que consideramos atractiva para el alumnado, brindándole conocimientos prácticos en ambos campos y contribuyendo a afianzar los teóricos.[Abstract] In this article we present the development of an artistic mosaic effect between two images used in the teaching of parallelism and computer vision techniques. The implementation of the effect with the use of parallelism, the programming language C and the OpenCV library allows students to discover the advantages and limitations of this paradigm in the context of an image processing application, which we consider attractive for students. , providing practical knowledge and contributing to improve the theorists.Comisión Europea; 586035-EPP-1-2017-1-DZ-EPPKA2-CBHE-J