An Astrophysical Laboratory: Understanding and Exploiting the Young Massive Cluster Westerlund 1

Westerlund 1 provides a unique opportunity to probe the physics of massive stars, from birth to death and beyond, as well as the formation and evolution of a super star cluster that appears destined to evolve into a globular cluster. We highlight the result of current studies of this cluster, its diverse stellar constituents and immediate environment, concluding with a summary of future research avenues enabled by ESO facilities

The TUCAN3G project: wireless technologies for isolated rural communities in developing countries based on 3G small-cell deployments

Recent years have witnessed a massive penetration of cellular systems in developing countries. However, isolated rural areas (sparsely inhabited by low-income population) have been disregarded because classical access and backhaul technologies do not ensure the return on investment. This article presents innovative techno-economical solutions to provide these areas with cellular voice and data services. We first analyze the general characteristics of isolated rural communities, and based on this information, low-cost solutions are designed for both access (using 3G access points) and backhaul networks (using non-carrier grade equipment as WiFi for long distances or WiMAX in non-licensed bands). Subsequently, a study of population-dependent income vs. costs is presented, and a new business model is proposed involving mobile network operators, rural operators, and infrastructure providers. In order to test these solutions, we have built two demonstration platforms in the Peruvian jungle that have allowed validation of the technical feasibility of the solution, verifying the business model assumptions and the scalability of the initiative.Peer ReviewedPostprint (author's final draft

Efficiency of the cerebroplacental ratio in Identifying high-risk late-term pregnancies

Background and Objectives: Over the last few years, great interest has arisen in the role of the cerebroplacental ratio (CPR) to identify low-risk pregnancies at higher risk of adverse pregnancy outcomes. This study aimed to assess the predictive capacity of the CPR for adverse perinatal outcomes in all uncomplicated singleton pregnancies attending an appointment at 40–42 weeks. Materials and Methods: This is a retrospective cohort study including all consecutive singleton pregnancies undergoing a routine prenatal care appointment after 40 weeks in three maternity units in Spain and the United Kingdom from January 2017 to December 2019. The primary outcome was adverse perinatal outcomes defined as stillbirth or neonatal death, cesarean section or instrumental delivery due to fetal distress during labor, umbilical arterial cord blood pH < 7.0, umbilical venous cord blood pH < 7.1, Apgar score at 5 min < 7, and admission to the neonatal unit. Logistic mixed models and ROC curve analyses were used to analyze the data. Results: A total of 3143 pregnancies were analyzed, including 537 (17.1%) with an adverse perinatal outcome. Maternal age (odds ratio (OR) 1.03, 95% confidence interval (CI) 1.01 to 1.04), body mass index (OR 1.04, 95% CI 1.03 to 1.06), racial origin (OR 2.80, 95% CI 1.90 to 4.12), parity (OR 0.36, 95% CI 0.29 to 0.45), and labor induction (OR 1.79, 95% CI 1.36 to 2.35) were significant predictors of adverse perinatal outcomes with an area under the ROC curve of 0.743 (95% CI 0.720 to 0.766). The addition of the CPR to the previous model did not improve performance. Additionally, the CPR alone achieved a detection rate of only 11.9% (95% CI 9.3 to 15) when using the 10th centile as the screen-positive cutoff. Conclusions: Our data on late-term unselected pregnancies suggest that the CPR is a poor predictor of adverse perinatal outcomes

Uso no estándar e implementación exitosa del Protocolo I2C para un Sistema de Medición de Temperatura en Aldeas Andinas a gran altitud

This article describes the design and development of a compact low energy consumption temperature data acquisition system using the I2C protocol with cables up to eight meters long. This system has been used in the implementation of a Peruvian government project aimed at validating the use of Trombe walls in small towns located at high altitude (4000 - 5000 m.a.s.l.). This article explains the construction of the module, the data acquisition subsystem, and presents an overview of the implementation of the developed system.Este artículo describe el diseño y desarrollo de un sistema de adquisición de datos de temperatura compacto y de bajo consumo energético, el cual emplea el protocolo I2C con cables de hasta ocho metros de largo. Este sistema se ha utilizado en la implementación de un proyecto del Gobierno del Perú con el objetivo de validar el uso de muros Trombe en localidades ubicadas a gran altitud (4000-5000 m s. n. m.). En este artículo se explica la construcción del módulo, el subsistema de adquisición de datos y se ofrece una visión general de la implementación del sistema desarrollado

Miradas sobre Sevilla : mapas sensibles de la ciudad

Proyecto de "Exposición Integral e Innovación Social y Cultural sobre la ciudad de Sevilla". Miradas Sobre Sevilla es un proyecto que abandera otra forma de contar una ciudad, con jóvenes con otras capacidades, con disfunciones motoras o intelectuales, con ojos distintivos y auténticos. Artistas participantes: Paco Broca, Javier Buzón, Amalia Ortega Rodas, María Amparo Pérez-Elliott Fernández ; Adriana Torres, Manuel León, Mar García Ranedo, Mar Muñiz, Eduardo González, Gloria Lomas ; Anuca Aísa, Pierre Gonnord, Emilio Caracafé, María Ortega, Pepe Yañez, Luis Postigo, Ricardo Rojas ; Antonio del Junco, Valentín de Madariaga Parias, Dionisio Gonzále

Sub-millimiter wave receivers

In this article a review is carried out of how technological aspects are affecting the system configuration of a sub-millimeterwave receiver for imaging applications. Throughout the discussion we will emphasize the role that the Schottky diode plays in this type of applications

[Club Deportivo Ensidesa III] [Material gráfico]

Contiene fotografías pertenecientes al archivo fotográfico del diario "Región", publicadas entre 1966 y 1978Algunas fotos no indican autoría; el resto firmadas por Foto E. Gar (Oviedo), Foto Marcos (Avilés), Antonio Rodríguez Fernández (Carbayín, Siero), Foto Paco (Mieres

[Mieres personas] [Material gráfico]

Contiene fotografías pertenecientes al archivo fotográfico del diario "Región", publicadas entre 1973 y 1982Algunas fotos no indican autoría. El resto firmadas por Foto Trapiello (Mieres), Foto Paco (Mieres), Estudios Fotográficos Álvarez (Oviedo), Foto E. Gar (Oviedo), y Estudios Jubar (Mieres