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Desarrollo de un proceso experimental de elaboración de espumas metálicas
No full textProyecto financiado dentro de la Convocatoria de Programa Asturias de ayudas a Centros Tecnológicos en el Principado de Asturias durante el periodo 2016-2017 de la Consejería de Empleo, Industria y Turismo. Nº referencia: IDI/2016/0028
Análisis comparativo de los diversos tipos de quemaduras atendidas en urgencias
No full textObjective
Compare the different types of burns.
Method
Burns treated in the emergency room for 2 years were identified. The type, mechanism of
production, treatment and evolution are analyzed.
Results
472 patients were treated. Of these, 43% were chemical, 36.2% were thermal, 12.3% were
solar radiation and welding (UV), 6.8% were abrasion / friction and 1.7% were electrical. The female sex predominates in thermal burns (p=0.036) and domestic accidents in thermal or electric burns (p<0.001). The extent of the burn is less in the chemical than in the electric and ultraviolet ones (p<0.001) and those of grade II are more prevalent in the thermal ones (p<0.001). The chemical burn impacts more on the eyes and thermal on the extremities (p<0.001).
All have received topical treatment except electric ones (p<0.001). Electrical tests and
abrasions needed more tests (p<0.001). Chemical burns remain less time in the Emergency Room (p<0.001). There were no differences in the need and number of follow-up days, or sequelae.
Conclusions
Chemical burns are more frequent. The treatment is determined by the type of burn and the area where it is produced. There are no differences in evolution.Objetivo
Comparar los diferentes tipos de quemaduras.
Método
Se identifican las quemaduras atendidas en urgencias durante 2 años. Se analiza el tipo,
mecanismo de producción, tratamiento y evolución.
Resultados
Se han atendido 472 pacientes. De ellas fueron químicas el 43%, térmicas el 36,2%, por radiación solares y por soldadura (UV) el 12,3%, por abrasión/ fricción el 6,8% y eléctricas el 1,7%. El sexo femenino predomina en las quemaduras térmicas (p=0.036) y el accidente doméstico en las térmicas o eléctricas (p<0.001). La extensión de la quemadura es menor en la química respecto a la eléctrica y ultravioleta (p<0.001) y las de grado II son más
prevalentes en las térmicas (p<0.001). La quemadura química impacta más en los ojos y las térmicas en las extremidades (p<0.001).
Todas han recibido tratamiento tópico excepto las eléctricas (p<0.001). Necesitaron más
pruebas complementarias las eléctricas y las abrasiones (p<0.001). Las quemaduras
químicas permanecen menos tiempo en Urgencias (p<0.001). No hubo diferencias en la
necesidad y número de días de seguimiento, ni en la presentación de secuelas.
Conclusiones
Las quemaduras químicas son más frecuentes. El tratamiento viene determinado por la clase
de quemadura y la zona donde se produce. No hay diferencias en la evolución
Acceleration of Gradient-Based Algorithms for Array Antenna Synthesis with Far Field or Near Field Constraints
No full textThis work presents a technique for the acceleration of gradient-based algorithms that employ finite differences in the calculation of the gradient for the optimization of array antennas. It is based on differential contributions, which takes advantage of the fact that when an array is optimized, each element is analyzed independently from the rest. Thus, the computation of the gradient of the cost function, which is typically the most time consuming operation of the algorithm, can be accelerated. A time cost study is presented and the technique is implemented, as an example, in the generalized Intersection Approach algorithm for array optimization in near and far fields. Several syntheses are performed to assess the improvement of this technique. In the far field, it is compared for periodic and aperiodic arrays using different approaches for the computation of the gradient, including the analytic derivative. A reflectarray is also optimized in the near field with the goal of improving its quiet zone. The technique of differential contributions shows important reductions in the time per iteration in all three syntheses, specially in that of aperiodic arrays and near field optimization, where the time saved in the evaluation of the gradient is greater than 99%.This work was supported in part by the European Space Agency (ESA) under contract ESTEC/AO/1-7064/12/NL/MH; by the Ministerio de Ciencia, Innovación y Universidades under project TEC2017-86619-R (ARTEINE), and through Programa "Clarín" de Ayudas Postdoctorales / Marie Curie-Cofund under project ACA17-09
Observaciones en torno al origen y difusión de la cerámica de Miranda (Avilés)
No full textArtículo científicoBased on a review of pottery collected from various archaeological sites in Asturias and Galicia, we present information that more accurately defines the
development of pottery from Miranda. As in the case of other manufacturing workshops in Asturias, fundamental ethnographic and documentary analysis proved insufficient for tracing initial developments and confirming certain production characteristics, without a corresponding archaeological review.
Our review demonstrates that early pottery from Miranda, before product specialisation, dates to the Late Middle Ages, and that distinctly traditional
production emerged in the sixteenth century.A través de la revisión de las colecciones cerámicas de diversas excavaciones arqueológicas en Asturias y Galicia, proponemos algunos aspectos que puntualizan con mejor definición la evolución de la cerámica de Miranda. Al igual que en otros centros productores asturianos, el simple análisis etnográfico o documental era insuficiente sobre todo a la hora de trazar los orígenes o certificar algunos aspectos de esa producción artesanal sin la consiguiente revisión arqueológica. Nuestra revisión demuestra la existencia de unas primeras producciones preespecializadas de Miranda en la Baja Edad Media, con un surgimiento de las producciones claramente
tradicionales en el siglo XVI
Sustancia adictivas y embarazo: Cuidados de enfermería a la mujer embarazada y al recién nacido para minimizar sus efectos
No full textIntroduction
The consumption of psychoactive substances or drugs by women has negative effects on their health. However, in case of pregnancy, problems will arise in the development of the fetus and dependence on the newborn, which may develop the Neonatal Abstinence Syndrome.
Description
Addiction to drugs during pregnancy has consequences in the development of the fetus and can cause dependence on the neonate, resulting in the Neonatal Abstinence Syndrome, which is characterized by a set of symptoms and signs of hyperexcitability due to cessation of addictive substances. The nurse has an important role, not only in the early recruitment of pregnancy women who are consuming addictive substances, but also in the care of the nerwborn with neonatal abstinence.
Conclusions
Well-trained nurses play an important role in early detection of pregnant women with addiction and in the assessment of susceptible newborns to develop Neonatal Abstinence Syndrome, as well as in the care of those who have already developed it, to minimize the effects and to help to improve the newborns’ well-being.Introducción: El consumo de sustancias o drogas psicoactivas por parte de la mujer tienen efectos negativos para su salud, pero en caso de que esté embarazada se generarán problemas en el desarrollo del feto y dependencia en el recién nacido, pudiendo éste desarrollar el Síndrome de Abstinencia Neonatal.
Descripción: La adicción a las drogas por parte de las mujeres embarazadas tiene consecuencias en el desarrollo del feto y puede llegar a producir dependencia en el neonato, dando lugar al Síndrome de Abstinencia Neonatal, que se caracteriza por un conjunto de síntomas y signos de hiperexcitabilidad debido al cese del aporte de las sustancias adictivas. La enfermera de Atención Primaria tiene una función importante, no solo en la captación precoz de mujeres embarazadas consumidoras de sustancias adictivas, sino que también en la prevención de ese consumo antes del embarazo, con el objetivo de que la mujer realice un cambio en sus conductas de riesgo.
Conclusiones: Las enfermeras debidamente formadas tienen una función importante en la detección precoz de mujeres embarazadas con adicción y en la valoración de los recién nacidos susceptibles de desarrollar Síndrome de Abstinencia Neonatal, así como en el cuidado de los que ya lo han desarrollado, para minimizar sus efectos y ayudar a su bienestar
Efficient and Accurate Modeling of Reflectarray Unit Cells Using SVMs
No full textThis paper presents a technique for an efficient and accurate characterization of dual-polarized reflectarray unit cells by means of Support Vector Machines (SVMs) to accelerate the analysis and optimization of this type of antenna. The goal is to accurately obtain the matrix of complex reflection coefficients using geometrical data of the unit cell. To this end, SVMs are employed to obtain surrogate models of those coefficients in an efficient fashion by employing a novel grid search which accelerates by three orders of magnitude the training process with regard to an exhaustive grid search. In addition, the precision of the surrogate model is tested against full-wave simulations assuming local periodicity obtaining a high degree of agreement.This work was supported in part by the European Space Agency (ESA) under contract ESTEC/AO/1-7064/12/NL/MH; by the Ministerio de Economía y Competitividad (Spanish Government), under projects TEC2017-86619-R (ARTEINE) and TEC2016-75103-C2-1-R (MYRADA); and by the Gobierno del Principado de Asturias through Programa "Clarín" de Ayudas Postdoctorales / Marie Curie-Cofund under project ACA17-09.IEEE International Symposium on Antennas and Propagatio
La stabilità delle istituzioni veneziane nel Trecento. Aspetti politici, economici e culturali nella gestione della congiura di Marino Falier
Get PDFITALIANO: Il saggio intende esaminare la tenuta del sistema politico-costituzionale veneziano nel tardo medioevo, cercando di porre la questione in una nuova prospettiva. L’analisi delle fonti su di uno specifico caso-studio, la congiura di Marino Falier del 1355, ha messo in rilievo l’azione di tre fattori (di tipo politico, economico e culturale) rivelatisi fondamentali per il superamento del
momento di stallo: prontezza degli organismi giudiziari, attenzione al tessuto socioeconomico, gestione dell’immagine e della memoria. Fattori, questi, sempre operanti e che è possibile rintracciare anche durante le altre due gravi crisi politico-costituzionali nel Tre e Quattrocento,
sebbene con una intensità e qualità differente. / ENGLISH: This article aims to examine the stability of Venice’s constitutional and political system during the late Middle Ages, by considering the question from a new perspective. The analysis of the documents relative to Marino Falier’s conspiracy (1355), has elucidated three factors of political, economic, and cultural nature that helped overcome the subsequent impasse: the immediate
reaction of the institutions, the attention to the economic framework, the good management of the image and the memory of the episode. These three factors were ever-present, and are also evident in the other two serious political crises that occurred during the fourteenth and fifteenth centuries, although with a different intensity and quality