19 research outputs found

    Seminario: Eurocentrismo y descolonizaci贸n. Aportes para pensar los desaf铆os que atraviesa Nuestra Am茅rica : Programa de Capacitaci贸n y Actualizaci贸n Docente UNICEN-ADUNCE

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    Seminario dictado en el marco del Programa de Capacitaci贸n y Actualizaci贸n Docente UNICEN-ADUNCE. Comprendiendo necesario el desarrollo de las ciencias sociales en v铆nculo a las necesidades del entorno, desde este curso se propone abordar introductoria y sistem谩ticamente los principales aportes de las teor铆as des-coloniales, entendiendo que las mismas abrevan a una comprensi贸n m谩s situada de la realidad que nos circunda.Universidad Nacional del Centro de la Provincia de Buenos Aire

    Accurate circuit modeling of fishnet structures for negative-index-medium applications

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    Metallic plates with a two-dimensional (2D) periodic distribution of sub-wavelength apertures are known to exhibit extraordinary transmission of electromagnetic waves. Stacking two or more of such plates gives place to the so-called fishnet structures, which constitute a popular way of achieving an effective negative index medium at frequencies ranging from microwaves to optics. Unfortunately, a general wideband equivalent circuit has not yet been proposed to facilitate its understanding and design. This work presents this circuit model with closed-form expressions for the circuit elements, thus making it possible to obtain the electrical response for this class of structures in a very efficient way. This procedure is much faster than alternative numerical methods at the same time that it retains a high level of accuracy when compared with some other oversimplified models. The circuit model also provides a simple rationale as well as a good physical insight in order to explain the qualitative behavior of such structures, independently of the number of stacked layers.This work was supported by the Spanish Ministry of Economy and Competitiveness with European Union Feder Funds (under grants TEC2011-28664-C02-01, TEC2014-51902-C2-2-R, TEC2013-41913-P, and Consolider EMET CSD2008-00066, and by the Spanish Junta de Andaluc铆a under Project P12-TIC-1435). The work of M. Beruete was supported by the Spanish Government via RYC-2011-08221

    Seminario: Eurocentrismo y descolonizaci贸n. Aportes para pensar los desaf铆os que atraviesa Nuestra Am茅rica : Programa de Capacitaci贸n y Actualizaci贸n Docente UNICEN-ADUNCE

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    Seminario dictado en el marco del Programa de Capacitaci贸n y Actualizaci贸n Docente UNICEN-ADUNCE. Comprendiendo necesario el desarrollo de las ciencias sociales en v铆nculo a las necesidades del entorno, desde este curso se propone abordar introductoria y sistem谩ticamente los principales aportes de las teor铆as des-coloniales, entendiendo que las mismas abrevan a una comprensi贸n m谩s situada de la realidad que nos circunda.Universidad Nacional del Centro de la Provincia de Buenos Aire

    An谩lisis y dise帽o orientado a objetos del sistema administrativo, financiero y productivo de la empresa industrial naturista PROLAND

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    El presente trabajo comprende la realizaci贸n del an谩lisis y dise帽o orientado a objetos del sistema administrativo, financiero y productivo de la empresa industrial naturista PROLAND. En la parte del negocio comprendida en el cap铆tulo 2 se desarrolla todo lo concerniente al levantamiento de informaci贸n para conocer y determinar los potenciales usuarios del sistema y que es lo que estos necesitan tener constru铆do. Para esto se han identificado actores, modelado los casos de uso esenciales y documentado a detalle las reglas del negocio. En el cap铆tulo 3 concerniente a la etapta de an谩lisis se desarrolla los diagramas de casos de uso del sistema, diagramas de colaboraci贸n y diagramas de actividad, con los cuales se concentra la informaci贸n necesaria de lo que se va construir y se logra un mejor entendimiento del sistema....

    Dise帽o e implementaci贸n de un panel de entrenamiento para programaci贸n de sistemas de automatizaci贸n con controlador l贸gico programable e interfaz hombrem谩quina aplicado a un sistema de envasado, utilizando servomotores para el laboratorio de electr贸nica de potencia

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    El presente proyecto consiste en la implementaci贸n de un panel de entrenamiento para los estudiantes de nuestra carrera en el que puedan llevar a cabo cualquier aplicaci贸n de automatizaci贸n. Tambi茅n se proveer谩 de un sistema de envasado y dosificaci贸n, automatizado por nosotros utilizando dicho panel. Primero explicaremos el dise帽o del panel de entrenamiento, en el cual nos referimos a todos los componentes que son requeridos para el aprendizaje del estudiante; para el presente caso se adquiri贸 el PLC y la HMI de la marca SIEMENS.GuayaquilIngeniero en Electricidad Especializaci贸n Electr贸nica y Automatizaci贸n Industria

    Caracterizaci贸n y propuesta t茅cnica de la acuacultura en la zona de quijos, provincia de Napo

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    Belonging to the province of Napo, Quijos canton is located in the middle of the Sierra and Amazon regions of our country, this strategic location makes the paradise site an attractive addition aquaculture activities specifically to develop the culture of Rainbow Trout (Onchorichus Mykiss). As we麓ve seen through the routes to that site, in the last decade the community has been dedicated to small-scale production of such species, which has contributed to the daily livelihood of many in the sector, but due to the limited training this activity has not developed as it could and indeed is wasting the existing installed capacity. Found 8 fish farm of which are 6 products that contribute to 44 lb/m2. Of annual production, they also offer a research and production development class called CENIAC (Centro Nacional de Investigaci贸n Acu铆cola), located in Papallacta. Of course population growth is generating jobs and lack of income which leads to the search for news sources and this particular case the optimization of current resources to help improve the quality of life for members of the community involved

    Dandy-Walker Malformation in an Asymptomatic 27-Year-Old Woman. A Case Report

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    Introduction: Dandy-Walker malformation (DWM) is a rare congenital disorder that involves the cerebellum and fourth ventricle. Incidentally detected asymptomatic DWM is sparsely reported in literature at extremes of age (from 1 to 75 years) in association with different diseases. We aim to report the case of a patient with an incidental finding of a DWM after a road traffic accident, reinforcing the importance of suspicion, investigation, diagnosis of clinical presentations. The Case: This case report describes a 27-year-old female patient who presented to the emergency room after a motor vehicle collision. She suffered a left kidney and spleen injury. The patient鈥檚 brain CT scan revealed an enlarged cisterna magna with normal cerebellum, partial hypoplasia of the cerebellar vermis and enlargement of the fourth ventricle compatible with DWM. Neurological examination was unremarkable. An exploratory laparotomy was performed, and the left kidney and spleen showed hemorrhage, so a left nephrectomy and splenectomy was done. Conclusions: This case report aimed to characterize the DWM, which is a congenital malformation of the central nervous system. Asymptomatic patients do not require surgical treatment; however, these patients should be followed up once a year
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