Open Source Monitoring System for IT Infrastructures Incorporating IoT-Based Sensors

Presented at the III XoveTIC Congress, A Coruña, Spain, 8–9 October 2020[Abstract] This paper introduces the development of a data center monitoring system based on IoT technologies. The system is meant to work as an administrative tool for system administrators in any environment, but mainly focused on data centers, since it integrates sensor and server status data. We are developing a system that gives a broad view of a data center, integrating server data such as CPU and memory usage or network bandwidth with room health parameters such as temperature, humidity, and power consumption or the presence sensors that indicate if there were people inside the room at the time a certain event occurred. As this is a work in progress, in this paper, we present the state-of-the-art of this subject, as well as what we expect to obtain from this project

Adição ao trabalho e interação familiar em enfermeiros

This study aims to identify the prevalence of workaholism and work-family interaction, their relationship and their variation according sociodemographic and occupational characteristics among nurses. A quantitative, descriptive, correlational and transversal study was conducted with a sample of 839 Portuguese nurses. Regarding workaholism, 27% of workaholic nurses were identified, scoring a higher mean value for excessive work. For work-family interaction, the dimensions showing the highest mean values were the negative work-family interaction and the positive family-work interaction. The variables identified as significant predictors of workaholism were the work-family interaction (39%), occupational variables (10.6%) and sociodemographic variables (1.2%). Among the occupational and professional variables, the women, age equal or less than 37 years and perception of stressful work, were highlighted. The confirmation of workaholism in nurses, as well as its predictive variables are significantly important for professionals and organizations to better understand the impact of this phenomenon, particularly in mental health and to encourage the development of programmes aiming to promote health at the workplace.O objetivo deste estudo foi identificar a prevalência da adição ao trabalho, os níveis de interação trabalho-família e a relação destes com características sociodemográficas e laborais em enfermeiros. Estudo quantitativo, descritivo, correcional e transversal numa amostra de 839 enfermeiros de Portugal continental. Relativamente à adição ao trabalho, identificaram-se 27,1% de enfermeiros adictos, com valor médio superior no trabalho excessivo. No que respeita à interação trabalho-família, as dimensões com médias superiores foram a interação negativa trabalho-família e a interação positiva família-trabalho. As variáveis identificadas como preditores significativos da adição ao trabalho foram a interação trabalhofamília (39%), as variáveis laborais (10,6%) e as sociodemográficas (1,2%). Das variáveis laborais e profissionais salienta-se o sexo feminino, idade igual ou inferior a 37 anos e a perceção de trabalho stressante. A confirmação deste fenómeno em enfermeiros, assim como, das variáveis que o podem potenciar, possibilita ao profissional e às organizações, uma maior consciencialização dos seus impactos, nomeadamente na saúde mental incentivando o desenvolvimento de programas que visem a promoção de saúde no local de trabalho.info:eu-repo/semantics/publishedVersio

Psychometric properties of the Portuguese Dutch Work Addiction Scale

Objective: To analyse the psychometric properties of the Dutch Work Addiction Scale in a sample of Portuguese nurses. Method: A methodological study was conducted with 1,030 Portuguese nurses. A sociodemographic/professional questionnaire and the Dutch Work Addiction Scale applied between October and December 2019. Results: The Confirmatory Factorial Analyses confirmed the factorial structure of two dimensions, namely Working Excessively (α = .730) and Working Compulsively (α = .752), grounded on the theoretical model of workaholism; the reliability values were considered adequate. Nurses presented a moderate level of workaholism, with a higher mean value for Working Excessively. Conclusion: The results raised the issue of workaholism and highlighted the need for further study. The Portuguese version of the DUWAS presented good psychometric characteristics and can be considered a valid and useful instrument to identify this problem.Objetivo Analisar as propriedades psicométricas da Dutch Work Addiction Scale (Duwas) numa amostra de enfermeiros portugueses. Método Foi realizado um estudo metodológico com 1.030 enfermeiros portugueses. Um questionário sociodemográfico/profissional e a Duwas foram aplicados entre outubro e dezembro de 2019. Resultados A Análise Fatorial Confirmatória confirmou a estrutura fatorial de duas dimensões, a saber Trabalhar Excessivamente (α = 0,730) e Trabalhar Compulsivamente (α = 0,752), embasado no modelo teórico de workaholism; os valores de confiabilidade foram considerados adequados. Os enfermeiros apresentaram nível moderado de workaholism, com maior valor médio para Trabalhar Excessivamente. Conclusão Os resultados levantaram a questão da adição ao trabalho e destacaram a necessidade de estudos mais aprofundados. A versão em português do Duwas apresentou boas características psicométricas e pode ser considerada um instrumento válido e útil para identificar esse problema.Objetivo Analizar las propiedades psicométricas de la Dutch Work Addiction Scale (Duwas) en una muestra de enfermeros portugueses. Método Se realizó un estudio metodológico con 1.030 enfermeras portuguesas. Un cuestionario sociodemográfico/profesional y la Duwas fueron aplicados entre octubre y diciembre de 2019. Resultados Los análisis factoriales confirmatorios confirmaron la estructura factorial de dos dimensiones, a saber, Trabajar en exceso (α = .730) y Trabajar de forma compulsiva (α = .752), basado en el modelo teórico de la adicción al trabajo; los valores de fiabilidad se consideraron adecuados. Los enfermeros presentaron un nivel moderado de adicción al trabajo, con un valor medio más alto para Trabajar en exceso. Conclusión Los resultados plantearon el problema de la adicción al trabajo y destacaron la necesidad de realizar más estudios. La versión portuguesa del Duwas presentó buenas características psicométricas y puede considerarse un instrumento válido y útil para identificar este problema.info:eu-repo/semantics/publishedVersio

Workaholism, engagement e interação familiar em enfermeiros: um estudo comparativo

info:eu-repo/semantics/publishedVersio

Preproghrelin expression is a key target for insulin action on adipogenesis.

This study aimed to investigate the role of preproghrelin-derived peptides in adipogenesis. Immunocytochemical analysis of 3T3-L1 adipocyte cells showed stronger preproghrelin expression compared with that observed in 3T3-L1 preadipocyte cells. Insulin promoted this expression throughout adipogenesis identifying mTORC1 as a critical downstream substrate for this profile. The role of preproghrelin-derived peptides on the differentiation process was supported by preproghrelin knockdown experiments, which revealed its contribution to adipogenesis. Neutralization of endogenous O-acyl ghrelin (acylated ghrelin), unacylated ghrelin, and obestatin by specific antibodies supported their adipogenic potential. Furthermore, a parallel increase in the expression of ghrelin-associated enzymatic machinery, prohormone convertase 1/3 (PC1/3) and membrane-bound O-acyltransferase 4 (MBOAT4), was dependent on the expression of preproghrelin in the course of insulin-induced adipogenesis. The coexpression of preproghrelin system and their receptors, GHSR1a and GPR39, during adipogenesis supports an autocrine/paracrine role for these peptides. Preproghrelin, PC1/3, and MBOAT4 exhibited dissimilar expression depending on the white fat depot, revealing their regulation in a positive energy balance situation in mice. The results underscore a key role for preproghrelin-derived peptides on adipogenesis through an autocrine/paracrine mechanism

The Obestatin/GPR39 System Is Up-regulated by Muscle Injury and Functions as an Autocrine Regenerative System

Background: Satellite cell activation is orchestrated by several signals, which induce their differentiation into skeletal muscle fibers. Results: Obestatin and the GPR39 receptor exert an autocrine role on the control of myogenesis. Conclusion: Our data indicate that obestatin/GPR39 is an injury-regulated signal that functions as a myogenic regenerative system. Significance: Strategies to enhance obestatin-mediated signaling could be useful in treating trauma-induced muscle injuries and skeletal muscle myopathies

Fault-tolerant aggregation: Flow-Updating meets Mass-Distribution

Flow-Updating (FU) is a fault-tolerant technique that has proved to be efficient in practice for the distributed computation of aggregate functions in communication networks where individual processors do not have access to global information. Previous distributed aggregation protocols, based on repeated sharing of input values (or mass) among processors, sometimes called Mass-Distribution (MD) protocols, are not resilient to communication failures (or message loss) because such failures yield a loss of mass. In this paper, we present a protocol which we call Mass-Distribution with Flow-Updating (MDFU). We obtain MDFU by applying FU techniques to classic MD. We analyze the convergence time of MDFU showing that stochastic message loss produces low overhead. This is the first convergence proof of an FU-based algorithm. We evaluate MDFU experimentally, comparing it with previous MD and FU protocols, and verifying the behavior predicted by the analysis. Finally, given that MDFU incurs a fixed deviation proportional to the message-loss rate, we adjust the accuracy of MDFU heuristically in a new protocol called MDFU with Linear Prediction (MDFU-LP). The evaluation shows that both MDFU and MDFU-LP behave very well in practice, even under high rates of message loss and even changing the input values dynamically.- A preliminary version of this work appeared in [2]. This work was partially supported by the National Science Foundation (CNS-1408782, IIS-1247750); the National Institutes of Health (CA198952-01); EMC, Inc.; Pace University Seidenberg School of CSIS; and by Project "Coral - Sustainable Ocean Exploitation: Tools and Sensors/NORTE-01-0145-FEDER-000036" financed by the North Portugal Regional Operational Programme (NORTE 2020), under the PORTUGAL 2020 Partnership Agreement, and through the European Regional Development Fund (ERDF).info:eu-repo/semantics/publishedVersio

Reseñas de libros

Carrasca Hortal, José y Millán Gómez, Antonio. La Estructura Gótica Catalana. Sobre los conceptos de media y espacio. El problema de la forma en la cubierta (Por Antonio Millán) pp. 4.-- Verd Herrero, Antonio. Dibujo del natural. Manual de texto docente universitario (Por Antonio Verd) pp.5-6.-- Caninva, Luigi. L'Architettura romana (Por Carlos de San Antonio Gómez) pp.6-7.-- Villalobos Alonso, Daniel. La mirada de Fisac (Por Alberto Grijalba Bengoetxea)pp.8.-- Jiménez Martín, Alfonso et al. La catedral gótica de Sevilla. Fundación y fábrica de la obra nueva (Por Enrique Rabasa Díaz) pp.8-9.-- García-Gutiérrez Mosteiro, Javier. Narciso Pascual y Colomer (1808-1870). Arquitecto del Madrid isabelino (Por Enrique Rabasa Díaz) pp.9-10.-- Valladolid. Bellido Blanco, Santiago. Cuaderno de apuntes (Por Fernando Lmares García) pp.10-11.-- Lopez-Peláez, José Manuel. Maestros cercanos de un arquitecto (Por Javier García-Gutiérrez Masteiro) pp.12.-- Garcia Bueno, Antonio. Dibujando la Alhambra (Por Joaquín Casado de Amezúa Vázquez) pp.13-14.-- Chías Navarro, Pilar y Abad Balboa, Tomás. Eduardo Torroja. Obras y proyectos (Por Jorge Llopis Verdú) pp.14-15.-- Gómez i Serrano, Josep y Font, Juan. La forma de la Villa de Madrid. Soporte gráfico para la información histórica de la ciudad (Por Jorge Llopis Verdú) pp.15-16.-- Nagore, Fernando. Geometría métrica y descriptiva para arquitectos (Por José Antonio Ruiz de le Rosa) pp.16-17.-- Rabasa Diaz, Enrique y el Centro de los Oficios de LeónGuía práctica de la estereotomía de la piedra (Por José CalvoLópez) pp.18-19.-- Hernández Iviartinez, Ascensión. La clonación arquitectónica (Por José Joaquín Parra 8añón) pp.20-21.-- Gentil Baldrich, José María y Yanguas Álvarez de Toledo, Ana. Fernando Barquín y Barón Joaquín Barquín y Barón Imágenes de su archivo en los fondos FIDAS (Por José Manuel Pala) pp.21-22.-- Escoda Pastor, Carmen. El magnetismo del lugar en la arquitectura pp.23.-- Herrero Vázquez, Eduardo Alejandro. Compases de mano, compases de ojo: la Geometrización de la Realidad según Laussedat (POr Adrien Javary) pp.24-25.-- Castaño Perea, Enrique. Arquitectura y música: Policoralidad en la Capilla Real del Alcázar de Madrid pp.25-26.-- Piquer Cases, Juan Carlos. Los modelos digitales en la arquitectura, desarrollo del proyecto e investigación patrimonial. Palacio Real de Valencia (1239-1810): análisis y reconstrucción virtual sobre la planta de Vicente Gascó de 1761 (Por Juan Carlos Piquer Cases) pp.26-28.-- Pérez Naya, Antonia. Arquitectura del silencio y la memoria. Análisis de los cementerios de la Costa da Morte gallega (Por JAfT) pp. 28-29.-- Falcón Meraz, José Manuel. La expresión de una línea museística singular (Por Juan Puebla) pp.29-30.-- 11Seminario Internacional "Color en el Diseño y la Arquitectura" pp.32.-- Taller de Pintura con Antonio López E.T.S. de Pamplona, septiembre de 2006 y 2007 (Por Inmacu/ada .liméne: Cabal/ero) pp.32-35.-- Arquitectura y autopsia: análisis gráficos de algunos restos de la inexistente Universidad laboral de Sevilla (Por José Joaquín Parra Bañón) pp.36-37Milán Gómez, A.; Verd Herrero, A.; De San Antonio Gomez, JC.; Grijalba Bengoetxea, A.; Rabasa Díaz, E.; Linares García, F.; García-Gutiérrez Mosteiro, J.... (2008). Reseñas de libros. EGA Expresión Gráfica Arquitectónica. 13(13):4-37. https://doi.org/10.4995/ega.2008.10266OJS437131

Clinical relevance of timing of assessment of ICU mortality in patients with moderate-to-severe Acute Respiratory Distress Syndrome

Mortality is a frequently reported outcome in clinical studies of acute respiratory distress syndrome (ARDS). However, timing of mortality assessment has not been well characterized. We aimed to identify a crossing-point between cumulative survival and death in the intensive care unit (ICU) of patients with moderate-to-severe ARDS, beyond which the number of survivors would exceed the number of deaths. We hypothesized that this intersection would occur earlier in a successful clinical trial vs. observational studies of moderate/severe ARDS and predict treatment response. We conducted an ancillary study of 1580 patients with moderate-to-severe ARDS managed with lung-protective ventilation to assess the relevance and timing of measuring ICU mortality rates at different time-points during ICU stay. First, we analyzed 1303 patients from four multicenter, observational cohorts enrolling consecutive patients with moderate/severe ARDS. We assessed cumulative ICU survival from the time of moderate/severe ARDS diagnosis to ventilatory support discontinuation within 7-days, 28-days, 60-days, and at ICU discharge. Then, we compared these findings to those of a successful randomized trial of 277 moderate/severe ARDS patients. In the observational cohorts, ICU mortality (487/1303, 37.4%) and 28-day mortality (425/1102, 38.6%) were similar (p = 0.549). Cumulative proportion of ICU survivors and non-survivors crossed at day-7; after day-7, the number of ICU survivors was progressively higher compared to non-survivors. Measures of oxygenation, lung mechanics, and severity scores were different between survivors and non-survivors at each point-in-time (p < 0.001). In the trial cohort, the cumulative proportion of survivors and non-survivors in the treatment group crossed before day-3 after diagnosis of moderate/severe ARDS. In clinical ARDS studies, 28-day mortality closely approximates and may be used as a surrogate for ICU mortality. For patients with moderate-to-severe ARDS, ICU mortality assessment within the first week of a trial might be an early predictor of treatment response