HADAS: Asistente de eco-eficiencia con repositorio de consumo energético

El interés por la Ingeniería del Software "verde", o sea, sensible al consumo de energía, es relativamente reciente. Su objetivo es concienciar a los desarrolladores de software de la influencia que tienen sus decisiones de diseño e implementación en el gasto energético del producto final. Hasta el momento se han publicado muchos resultados experimentales que comparan el consumo de energía de varias soluciones alternativas, y que demuestran que se puede reducir dicho consumo hasta en un 70 %. Aunque estos resultados sean de libre disposición, no es sencillo que un desarrollador aplique este conocimiento a sus aplicaciones. En consecuencia, en este artículo presentamos el eco-asistente HADAS cuya utilidad es: (i) los investigadores almacenarán sus resultados en un repositorio de libre disposición; (ii) los desarrolladores podrán razonar y obtener las configuraciones que menos energía consuman y que satisfaga sus requisitos. Nos centraremos en mostrar los elementos principales de nuestra propuesta y como se aplica a casos de estudio reales.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech. Proyectos MAGIC P12-TIC1814 y HADAS TIN2015-64841-

Low-Cost Piezoelectric Sensors for Time Domain Load Monitoring of Metallic Structures During Operational and Maintenance Processes

The versatility of piezoelectric sensors in measurement techniques and their performance in applications has given rise to an increased interest in their use for structural and manufacturing component monitoring. They enable wireless and sensor network solutions to be developed in order to directly integrate the sensors into machines, fixtures and tools. Piezoelectric sensors increasingly compete with strain-gauges due to their wide operational temperature range, load and strain sensing accuracy, low power consumption and low cost. This research sets out the use of piezoelectric sensors for real-time monitoring of mechanical strength in metallic structures in the ongoing operational control of machinery components. The behaviour of aluminium and steel structures under flexural strength was studied using piezoelectric sensors. Variations in structural behaviour and geometry were measured, and the load and μstrains during operational conditions were quantified in the time domain at a specific frequency. The lead zirconium titanate (PZT) sensors were able to distinguish between material types and thicknesses. Moreover, this work covers frequency selection and optimisation from 20 Hz to 300 kHz. Significant differences in terms of optimal operating frequencies and sensitivity were found in both structures. The influence of the PZT voltage applied was assessed to reduce power consumption without signal loss, and calibration to μstrains and loads was performed.This research was funded by Basque Government, grant number KK-2019/00051-SMARTRESNAK and by the European Commission, grant number 869884- RECLAIM

Thin Client Technology in the Academic Environment

From research groups at the universities of developed countries there is a growing interest in providing solutions to problems of developing countries. In this context we have studied typical problems in many (educational) institutions, such as the lack of technicians who repair the computers, the administration of the machines, and also the difficulty to maintain and configure the old hardware available due to the variety of characteristics of the different machines and the amount of hardware breakdowns and software issues (viruses, administration issues) that the local staff has to face up to with their equipments. We propose a thin client approach that takes into account the human, hardware and software characteristics of developing institutions to provide a complete service for a computer network. The network administration is reduced to the administration of one server only. The maintenance of the machines is simplified and old computers can simulate the running of a powerful computer. Our proposal results in a cheap, simple (from the support point of view) and powerful (in terms of achieved functionalities) design

Key-Value vs Graph-based data lakes for realizing Digital Twin systems

Digital twins constitute virtual representations of physically existing systems, synchronized at a specified frequency and fidelity. One way to connect physical and digital twins is through data lakes, which are efficient storage and query processing systems to manage the data exchanged between the twins. Existing digital twin systems make use of NoSQL or time databases for realizing their data lakes. Although very efficient, these proposals present some limitations for implementing non-trivial queries over highly connected data. In this paper we explore the use of graph databases for implementing data lakes, compare them with similar NoSQL proposals, and discuss the situations where one solution outperforms the other.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tec

Aplicación web para mejorar el proceso de adopción de animales sin hogar en los albergues de Trujillo, 2022

La presente investigación trató sobre el proceso de adopción de animales sin hogar en los albergues de Trujillo, la característica principal de este proceso, fue que no cuenta con una metodología única, además, se presentó un desorden en la recolección de información. Para analizar esta problemática fue necesario mencionar sus causas. La principal causa, fue el desorden de información con respecto a los tiempos y satisfacción de cada proceso de adopción realizado. La investigación se realizó por el interés de saber, que tanto mejoró los tiempos de adopción y búsqueda de animales, y saber cuál fue el nivel de satisfacción del voluntariado, ante la implementación de una solución tecnológica, como lo fue una aplicación web, la cual fue desarrollada mediante la metodología SWIRL (Software Web Iterativo Relacional Lógico). Para la recolección de información, la investigación utilizó una serie de fichas de observación y encuestas, los cuales fueron aplicados a una muestra de 115 procesos de adopción y 89 voluntariados, respectivamente. El tipo y diseño de investigación es aplicada y experimental, del tipo pre experimental. Donde, se observaron que los datos no siguen una distribución normal, por lo que se priorizó el uso de pruebas no paramétricas. En conclusión, la implementación llegó a reducir el tiempo promedio del proceso de adopción en 1442.58 segundos (83.13%), de igual forma, se redujo el tiempo promedio de búsqueda de mascotas en 1003.86 segundos (74.75%) y aumentar el nivel de satisfacción del voluntariado en una puntuación total de 26.83 (148.32%), para finalmente, cumplir con mejorar el proceso de adopción, gracias a la implementación de una aplicación web

Alcohol in suicide victims in Sao Paulo

CONTEXTO: A tendência a comportamentos violentos e impulsivos é aumentada após o consumo de álcool, sendo importante para a etiologia de mortes por causas externas. Nesse contexto, os suicídios aparecem como uma atitude impulsionada pelo consumo de álcool, ou como uma expressão da mesma patologia que leva ao abuso de substância. OBJETIVOS: Como carecemos de dados nacionais sobre suicídios sob a influência de álcool, o objetivo do presente estudo foi analisar a prevalência do consumo de álcool previamente ao suicídio. MÉTODOS: Leitura direta de 632 laudos necroscópicos de vítimas de suicídios necropsiadas no Instituto Médico-Legal do Estado de São Paulo no ano de 2005. RESULTADOS: Dos 632 casos analisados, 33,1% apresentaram alcoolemia positiva, sendo essa prevalência maior para os homens (37,1%) do que para as mulheres (20,1%). Os enforcamentos apresentaram a maior prevalência de alcoolizados, com 38,9% dos casos; as intoxicações apresentaram a maior média, com 1,78 g/L. CONCLUSÕES: Os resultados mostram que cerca de um terço dos suicídios na amostra foram cometidos subseqüentemente ao consumo de álcool, com diferenças entre os diversos métodos.BACKGROUND: A tendency toward violent and impulsive behavior is enhanced following the consumption of alcohol and is important in determining the etiology of deaths by external causes. In this context suicide appears to result from an attitude brought about by alcohol consumption or an expression of that same pathology which leads to substance abuse. OBJECTIVES: Considering the inexistence nationwide of data on suicides occurring under the influence of alcohol, the aim of the present study was to analyze the prevalence of alcohol consumption prior to suicide. METHODS: Direct analysis of 632 medical examiner’s reports on suicide victims autopsied at the Examiner’s Office (Instituto Médico-Legal) of the State of Sao Paulo, in the year 2005. RESULTS: Of the 632 cases reviewed, 33,1% presented a positive Blood Alcohol Concentration (BAC), with a higher occurrence in the case of men (37,1%) than that of women (20,1%). Hangings presented the highest prevalence of intoxicated victims, at a rate of 38,9% of the cases; intoxications presented the highest BAC mean, at 1,78 g/L. CONCLUSIONS: The results demonstrate that roughly speaking, about one third of the suicides in our sample carried out by differing methods were subsequent to alcohol consumption

El Estudio DiSA-UMH: Estudio de cohorte prospectivo en estudiantes de ciencias de la salud de la Universidad Miguel Hernández

Introduction: Young adulthood is an important stage to establish dietary habits and lifestyle behaviors that could be linked to the long-term development of chronic diseases in later life. The 3 years follow-up prospective cohort DiSA-UMH study was set up with the main objectives of determining the nutritional status, lifestyle behaviors and health status, assessing the possible changes during the follow-up, and estimating their influence on the occurrence and development of chronic diseases.Material and Methods: Baseline information of 1204 health science students from Universidad Miguel Hernández (UMH) aged between 17 and 35 years was collected during the period from 2006 to 2012. All the participants completed a general questionnaire divided into separate sections that included a food frequency questionnaire, specific questions on physical activity, tobacco consumption, nutritional labelling use, weight, height, health status, and questions about the diagnosis of several diseases. In order to validate self-reported data, several reliability/validity investigations with different subsamples were specifically conducted. After baseline questionnaire, students were asked to obtain anthropometric measurements and fasting blood samples. To evaluate our assessment of dietary intake, between three and nine 24-hour recalls administered by telephone were conducted over one year.Results: The first follow-up period of 3-years finished in 2015 and the second 3-year follow-up period is still ongoing. Although the retention rates during these assessment periods were 59.2% and 52.2% respectively, the losses of follow-up happened in a random way because of characteristics of participants and non-participants during follow-up were similar.Introducción: La edad adulta es una etapa importante para el establecimiento de hábitos dietéticos y estilos de vida que pueden estar implicados en el desarrollo de enfermedades crónicas posteriormente. El estudio de cohortes prospectivo con seguimiento a 3 años DiSA-UMH nació con el objetivo de determinar el estado nutricional, estilos de vida y la salud, evaluar los posibles cambios de estos durante el seguimiento y ver cómo influyen en la aparición y desarrollo enfermedades crónicas.Material y Métodos: La información basal de 1204 estudiantes de ciencias de la salud de entre 18 y 35 años de la Universidad Miguel Hernández fue recogida entre los años 2006 y 2012. Todos los participantes autocumplimentaron un cuestionario que incluía un cuestionario de frecuencia de alimentos, preguntas sobre actividad física, consumo de tabaco, alcohol, uso del etiquetado nutricional, peso, talla, tensión arterial sistólica y diastólica y estado de salud, así como preguntas sobre la presencia de diversas enfermedades. Con el fin de validar la información autoaportada, se realizaron específicamente diversos estudios de validación con diferentes submuestras. Tras el cuestionario basal, se les preguntó a los estudiantes para obtener medidas antropométricas y muestra de sangre en ayunas. Para valorar la evaluación de ingesta dietética se recogieron entre 3 y 9 recordatorios de 24 horas realizados por teléfono durante un año.Resultados: En 2015 finalizó el trabajo de campo del primer seguimiento de 3 años, estando aún en marcha el segundo periodo de 3 años de seguimiento. Aunque las tasas de retención durante estos periodos fueron de 59,2% y 52,2% respectivamente, las pérdidas de seguimiento se produjeron de forma aleatoria, ya que las características generales de los que participan y no participan en el seguimiento eran similares

Uso de anfetamínicos por motoristas profissionais brasileiros: aspectos gerais

Vários estudos mostram a relação do uso de anfetamínicos e a ocorrência de acidentes de transito. Os motoristas profissionais de transporte rodoviário de cargas no Brasil fazem uso indiscriminado de medicamentos à base dessas substâncias, conhecidos popularmente como “rebites”, objetivando aumentar o tempo de vigília para cumprir prazos e horários estabelecidos pelas empresas contratantes. Este trabalho busca contribuir com informações a respeito dos anfetamínicos, bem como as implicações do seu uso por condutores de veículos, sobretudo os caminhoneiros.Various epidemiological studies have been performed to show the relationship between the use of amphetamines and motor vehicle accidents. Truck drivers in Brazil use stimulant drugs, known as “rebites”, to reduce fatigue and enhance their performance to achieve dead lines and schedules agreed with the companies. The aim of the present article is to contribute with information about amphetamines and how these psychoactive substances affect the drivers, mainly the truckers

Mirroring the Zika epidemics in Cuba: The view from a European imported diseases clinic

Dear Editor, the changing epidemiology of Zika virus infection has been described before and in this letter we would like to show how the local epidemiology of Zika in Cuba is reflected in imported cases in returning travellers to Barcelona. The spread of the 2015 Zika epidemic was mostly reported in South America and the Caribbean. While increasing numbers of cases raised in South-America, Cuba was still free of cases. On 2nd March 2016 the first imported case from Cuba (Artemisa province) was reported. The first autochthonous case was reported on 16th March 2016 in La Habana. Onwards, cases were reported in Camagüey, Cienfuegos, Guantánamo, Havana and Santiago. During 2017 transmission has been reported in municipalities of Arroyo Naranjo and Regla in the province of Havana