Infección por el VIH e inmigración

La inmigración es un fenómeno relativamente reciente en España que ha ido tomando forma en los últimos 10 años y que plantea numerosos retos sociales: la prevención del VIH es uno de ellos. Los aspectos relacionados con la infección VIH en inmigrantes y minorías étnicas deben contemplarse desde una perspectiva amplia que permita comprender algunos de los problemas específicos de estos colectivos y como éstos van a condicionar actividades de prevención y asistencia. Existen problemas específicos del grupo poblacional de los inmigrantes ,como son las barreras legales y de comunicación, que van a condicionar de manera significativa las actividades de prevención y asistencia de estos pacientes. Creemos que el abordaje sanitario de los pacientes inmigrantes y concretamente la infección por el VIH debe hacerse desde los recursos sanitarios existentes tanto de atención primaria como de atención especializada. Como recomienda el grupo de Atención al Inmigrante de semFYC para poder abordar las necesidades de salud de la población inmigrantes, la repuesta más apropiada no puede venir de dispositivos específicos distintos, sino de su abordaje integral desde la atención primaria, que puede ofrecer continuidad asistencial. La salud de los inmigrantes debe ser considerada desde una óptica interdisciplinar, flexible y dinámica y se deben llevar a cabo estudios de investigación epidemiológica

1.2V, 1.96mW @ 2.4GHz CMOS-90nm switched-transconductor mixer

This paper presents the design of a fully differential double balanced switched transconductor mixer for ZigBee applications in the 2.4GHz band. It provides programmable conversion gain by using an active load stage. The design includes RF and LO input matching networks. It has been implemented in a 90nm 1P9M CMOS process. Post-layout simulations show conversion gains of 12dB/20dB, NF of 18.9dB/18.1dB and power consumption of 4.1mW/4.4mW at high and low gain mode respectively from a 1.2V power supply. It also offers very good linearity performance.España, Gobierno TEC2007- 68072 / MICEspaña, Junta de Andalucía ACATEX (P09-TIC-5386

A 2.5MHz bandpass active complex filter With 2.4MHz bandwidth for wireless communications

Trabajo presentado al 23rd DCIS celebrado en grenoble del 12 al 14 de noviembre de 2008.This paper presents a fully differential 8th order transconductor-based active complex filter with 2.4MHz bandwidth and centered at 2.5MHz, designed in a 90nm 2.5V 7M and MIM capacitors CMOS process technology. The filter compliants with the requirements of the IEEE802.15.4 standard. Simulation results including mismatching and process variations over the extracted view of the circuit are shown. The filter has a nominal gain of 12dB, good selectivity (20dB@2MHz offset), high image rejection (51dB nominal) and low power consumption (3.6mA @2.5V).This work has been founded in part by the EC through the project A109-Medea+ WITNESS (Wireless technologies for small area networks with embedded security and safety), the Spanish Regional Government of Junta de Andalucía under project TIC-927 and the Spanish Government under project TEC2007-68072.Peer reviewe

Design considerations for a low-noise CMOS image sensor

This paper reports a Low-Noise CMOS Image Sensor. Low-noise operation is achieved owing to the combination of a noise-enhanced pixel, the use of a two-step ADC architecture and the analysis, and the optimization thereof, of the noise contributed by the readout channel. The paper basically gathers the sensor architecture, the ADC converter architecture, the outcome of the noise analysis and some basic characterization data. The general low-noise design framework is discussed in the companion presentation.Junta de Andalucía TIC 2012-2338Office of Naval Research (USA) N00014141035

A 2.5MHz bandpass active complex filter With 2.4MHz bandwidth for wireless communications

This paper presents a fully differential 8thorder transconductor-based active complex filter with 2.4MHz bandwidth and centered at 2.5MHz, designed in a 90nm 2.5V 7M and MIM capacitors CMOS process technology. The filter compliants with the requirements of the IEEE802.15.4 standard. Simulation results including mismatching and process variations over the extracted view of the circuit are shown. The filter has a nominal gain of 12dB, good selectivity (20dB@2MHz offset), high image rejection (51dB nominal) and low power consumption (3.6mA @2.5V).Junta de Andalucía TIC-927Gobierno de España TEC2007-6807

Competencia informacional

Guía de la Competencia Informacional como competencia transversal de la Universidad de Almería. Se define a la competencia informacional, se marcan sus objetivos y los resultados de su aprendizaj

Red GNSS de InlandGEO en la Comunidad de Madrid: Aplicaciones en Tiempo Real

Se exponen aquí los desarrollos llevados a cabo para instalar y hacer operativa una red de Estaciones Permanentes GNSS, en la Comunidad de Madrid, con el fin de generalizar la disponibilidad pública, en todo el ámbito geográfico de la CAM, de las correcciones diferenciales de GNSS, contribuir a la densificación del Marco de Referencia ETRS89, y disponer de una Red GPS de altas prestaciones (GPS, GLONASS y la paulatina entrada GALILEO) con una idónea geometría, para proyectos de investigación en el marco de la CAM, tanto en Postproceso como en Tiempo Real. Se comentan aquí los pasos realizados para su instalación y entrada en operación, el cálculo preciso de sus coordenadas con el software BERNESE, análisis de precisiones y el desarrollo de un test de calidad a fin de comprobación las soluciones que da la red en tiempo real, comprobación de las soluciones en postproceso y comprobación del alcance de precisión del sistema. Crear un entorno de precisión sobre nuevas aplicaciones de Redes GPS de TOPCON en Agricultura de Precisión, Control de Maquinaria y posicionamiento de equipos topográficos para empresas, organismos y particulares de la CAM

Chloride Nutrition Regulates development, Water Balance and Drought Resistance in Plants

6 páginas.-- 5 figuras.-- 9 referencias.-- Poster presentado en el XII Luso-Spanish Symposium on Plant Water Relations – Water to Feed the World. 30th of September – 3rd of October (Evora) PortugalCl- is a strange micronutrient since actual Cl- concentration in plants is about two orders of magnitude higher than the content required as essential micronutrient. This accumulation requires a high cost of energy, and since Cl- is a major osmotically active solute in the vacuole, we propose that Cl- plays a role in the regulation of water balance in plants. We show here that, when accumulated to macronutrient levels, Cl- specifically regulates leaf cell elongation and water balance parameters, improving water relations at both the leaf tissue and the whole plant levels, increasing drought resistance in higher plants.This work was supported by the Spanish Ministry of Science and Innovation-FEDER grant AGL2009-08339/AGR.Peer Reviewe

Induction of estrus as a strategy to improve the economic efficiency of the sheep flock

Productivity and profitability in sheep production systems are strongly influenced by the reproductive capacity of the flock. Objective: To evaluate the use of reproductive biotechnologies (e.g., the induction of estrus) and its impact on the economic efficiency and the productive and reproductive performance of technified sheep production systems, during the seasonal anestrus. Design/Methodology/Approach: Four-hundred recently weaned (60 days postpartum) ewes of the Katahdin breed were randomly divided into two treatments: T1 = natural mating (n= 200) and T2 = induction of estrus (n=200). Estrus was induced through the application of intravaginal sponges, impregnated with 20 mg of chronolone, plus the injection of 400 IU of Equine Chorionic Gonadotropin. The aim was to evaluate the reproductive and economic efficiency of the flock. Results: The induction of estrus during the seasonal anestrus recorded increases (p<0.001) in prolificacy (32%), fertility (86%), and kilograms of lamb weaned per year per ewe (48%), while decreases (p <0.05) were recorded in the number of open days (25%), calving interval (11%), cost per open days (23%), and the kilograms of lamb required per ewe per year (10%). Study Limitations/Implications: The constant variations in the price of supplies and services caused changes in the economic indicators. Findings/Conclusions: The use of reproductive biotechnologies (such as estrus induction) has a positive impact on production units, improving their profitability