Distributed AOA-based source positioning in NLOS with sensor networks

©2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.This paper focuses on the problem of positioning a source using angle-of-arrival measurements taken by a wireless sensor network in which some of the nodes experience non lineof-sight (LOS) propagation conditions. In order to mitigate the errors induced by the nodes in NLOS, we derive an algorithm that combines the expectation-maximization algorithm with a weighted least-squares estimation of the source position so that the nodes in NLOS are eventually identified and discarded. Moreover, a distributed version of this algorithm based on a diffusion strategy that iteratively refines the position estimate while driving the network to a consensus is presented.Peer ReviewedPostprint (author's final draft

Propuesta de un nuevo modelo teórico para la Enfermería del Trabajo adaptado al entorno español

Enfermerí

Perfils de llum a la carta

Una investigació del Grup d'Òptica ha aconseguit obtenir perfils d'intensitat de llum a la carta, un control molt precís del comportament de la llum. La investigació permet incrementar o disminuir a voluntat la profunditat de focus i obtenir múltiples focals, amb aplicacions tecnològiques interessants

Características odontológicas de la parálisis cerebral. Precauciones para su tratamiento

Se revisan las características odontológicas de la parálisis cerebral, tanto de estructuras duras como blandas

Evaluating the pharmacological response in fluorescence microscopy images: The Δm algorithm

Current drug discovery procedures require fast and effective quantification of the pharmacological response evoked in living cells by agonist compounds. In the case of G-protein coupled receptors (GPCRs), the efficacy of a particular drug to initiate the endocytosis process is related to the formation of endocytic vesicles or endosomes and their subsequent internalisation within intracellular compartments that can be observed with high spatial and temporal resolution by fluorescence microscopy techniques. Recently, an algorithm has been proposed to evaluate the pharmacological response by estimating the number of endosomes per cell on time series of images. However, the algorithm was limited by the dependence on some manually set parameters and in some cases the quality of the image does not allow a reliable detection of the endosomes. Here we propose a simple, fast and automated image analysis method?the ?m algorithm- to quantify a pharmacological response with data obtained from fluorescence microscopy experiments. This algorithm does not require individual object detection and computes the relative increment of the third order moment in fluorescence microscopy images after filtering with the Laplacian of Gaussian function. It was tested on simulations demonstrating its ability to discriminate different experimental situations according to the number and the fluorescence signal intensity of the simulated endosomes. Finally and in order to validate this methodology with real data, the algorithm was applied to several time-course experiments based on the endocytosis of the mu opioid receptor (MOP) initiated by different agonist compounds. Each drug displayed a different ?m sigmoid time-response curve and statistically significant differences were observed among drugs in terms of efficacy and kinetic parameters

La restauración en los premios Aga Khan de Arquitectura

Un recorrido por las intervenciones de restauración, que han sido galardonadas durante la historia de los Premios de Arquitectura del Aga Khan, revela la voluntad de reconocimiento de esfuerzos colectivos destinados a la preservación, no sólo de la arquitectura, sino del vasto patrimonio que supone la identidad cultural de cada comunidad. Este recorrido se detiene en la descripción detallada del último galardón, otorgado a la rehabilitación del centro histórico de Hebrón, donde a pesar de los conflictos del presente, se ha realizado una labor considerable orientada a la recuperación integral. Este enfoque social, más extensivo y anónimo de la restauración se presenta como alternativa a las habituales intervenciones estelares de unos pocos monumentos

Heritage restoration in the Aga Khan Awards

[EN] A revision of the restoration works awarded with the Aga Khan Architecture Prizes throughout their history shows us that they strive to acknowledge collective efforts made in preservation, not only of architecture but the vast heritage involved in the cultural identity of every community. This overview includes a detailed description of the most recent prize, awarded for the rehabilitation of the city centre of Hebron, where great work has been done towards recovering its historic integrity in spite of the current conflicts. This more extensive and anonymous social attitude towards restoration is an alternative to the usual “brilliant” interventions on certain monuments.[ES] Un recorrido por las intervenciones de restauración, que han sido galardonadas durante la historia de los Premios de Arquitectura del Aga Khan, revela la voluntad de reconocimiento de esfuerzos colectivos destinados a la preservación, no sólo de la arquitectura, sino del vasto patrimonio que supone la identidad cultural de cada comunidad. Este recorrido se detiene en la descripción detallada del último galardón, otorgado a la rehabilitación del centro histórico de Hebrón, donde a pesar de los conflictos del presente, se ha realizado una labor considerable orientada a la recuperación integral. Este enfoque social, más extensivo y anónimo de la restauración se presenta como alternativa a las habituales intervenciones estelares de unos pocos monumentos.Noguera Giménez, JF.; Vegas López-Manzanares, F. (1999). La restauración en los premios Aga Khan de Arquitectura. Loggia, Arquitectura & Restauración. (8):90-97. doi:10.4995/loggia.1999.5289SWORD9097

Las frutas: Una propuesta didáctica para la escuela inclusiva

Novenes Jornades de Foment de la Investigació de la FCHS (Any 2003-2004