Architecture for the Creation of Ubiquitous Services Devoted to Health

Los sistemas ubicuos tienen diversas aplicaciones en diferentes campos tales como la industria, la educación y la salud. Sirven de apoyo a los profesionales de la salud para mejorar la atención, a través del acceso eficiente a información fundamental para el diagnóstico, tratamiento y seguimiento del paciente. La evolución actual de las redes de datos cableadas e inalámbricas en cuanto a confiabilidad y ancho de banda soportado, que permiten usarlas de manera eficiente para el transporte de tráfico multimedia (voz, audio y video), así como el avance en la construcción de sensores y demás dispositivos inalámbricos cada vez más eficientes en términos de consumo de batería, hacen de éste un momento muy propicio para el desarrollo de sistemas ubicuos. El presente artículo muestra el diseño de una arquitectura común para el desarrollo de sistemas ubicuos en el dominio de la salud que permite el monitoreo de variables fisiológicas y de contexto de pacientes bajo control clínicoUbiquitous systems have several applications in many fields such as industry, education and health. In terms of health, they are used to support both the patient and health professionals in order to improve healthcare, through efficient access to critical information, diagnosis, treatment, and monitoring of the patient. Ubiquitous computing is a concept that has gotten great importance around the world where major projects about this topic are being developed. Current developments in data wired and wireless networks in terms of reliability and bandwidth support, that have allowed the efficient use of these networks for the transport of multimedia traffic, as well as progress in building sensors and other wireless devices becoming more efficient in terms of battery consumption, have propitiated the development of ubiquitous systems. This article shows the design of a common architecture for the development of ubiquitous systems in the health domain for monitoring physiological and context variables of patients under clinical contro

Computational and communication infrastructure challenges for resilient cloud services

Fault tolerance and the availability of applications, computing infrastructure, and commu- nications systems during unexpected events are critical in cloud environments. The microservices architecture, and the technologies that it uses, should be able to maintain acceptable service levels in the face of adverse circumstances. In this paper, we discuss the challenges faced by cloud infrastruc- ture in relation to providing resilience to applications. Based on this analysis, we present our approach for a software platform based on a microservices architecture, as well as the resilience mechanisms to mitigate the impact of infrastructure failures on the availability of applications. We demonstrate the capacity of our platform to provide resilience to analytics applications, minimizing service interruptions and keeping acceptable response times

An evaluation of the state of time synchronization on leadership class supercomputers

We present a detailed examination of time agreement characteristics for nodes within extreme‐scale parallel computers. Using a software tool we introduce in this paper, we quantify attributes of clock skew among nodes in three representative high‐performance computers sited at three national laboratories. Our measurements detail the statistical properties of time agreement among nodes and how time agreement drifts over typical application execution durations. We discuss the implications of our measurements, why the current state of the field is inadequate, and propose strategies to address observed shortcoming