Design and implementation of an opportunistic network based on IEEE 802.15.4

Les xarxes de sensors sense fils constitueixen un dels principals àmbits on s'han focalitzat els esforços dels entorns acadèmics i de la indústria. Les xarxes de sensors sense fils possibiliten un ampli ventall d'aplicacions de control i monitorització, que permeten l'automatització de tasques i donen pas a nous paradigmes, com l'anomenada "intel·ligència ambiental", o "La Internet de les coses". Un dels escenaris d'interès dins de les xarxes de sensors, i també en altres tipus de xarxes, és el de les xarxes formades per dispositius que es mouen i que realitzen algun tipus de trajectòria repetitiva. Un exemple és el dels autobusos municipals, que segueixen una ruta preestablerta. Es pot aprofitar el fet que l'autobús passa tard o d'hora per tota la ruta, per recollir i transportar dades dels punts pels quals ha passat. En aquest tipus d'escenaris, es pot fer servir un encaminament anomenat oportunístic, que es basa en aprofitar la connectivitat entre els nodes en aquells moments en dos o més nodes són prou a prop. Aquest projecte proposa el disseny i implementació en dispositius reals IEEE 802.15.4 d'un sistema de xarxa oportunística per a la recollida de dades ambientals

Translating modernist language: the case of Gertrude Stein’s repetition

The present dissertation offers a comparative analysis of the two translations into Spanish of Gertrude Stein’s The Making of Americans (1925). The following pages study the different translations of the last chapter of the novel, History of a Family’s Progress: the first translation done by Antolín-Rato (1974), and the second and last translation by Aragón (2005). The focus of this project will be centered in analyzing one of the most representative language experimentation techniques in expatriate modernist Gertrude Stein, the repetition. We will compare how both translators face the challenge of translating Stein’s repetitions and in so doing, which techniques they use.El presente Trabajo de Fin de Grado ofrece un análisis comparativo de las dos traducciones al español que existen de The Making of Americans (1925) de Gertrude Stein. A lo largo del presente trabajo se estudian las distintas traducciones del último capítulo del libro, History of a Family’s Progress. La primera traducción por AntolínRato (1974) y la segunda y última traducción hecha por Aragón (2005). El objetivo de esta investigación se centrará en analizar una de las técnicas de experimentación con el lenguaje más representativas de la modernista expatriada Gertrude Stein, la repetición. Se comparará cómo los traductores afrontan el reto de traducir la repetición de Stein, y qué técnicas de traducción utilizan para ello.Departamento de Filología InglesaGrado en Estudios Inglese

Construction of three new Gateway® expression plasmids for Trypanosoma cruzi

We present here three expression plasmids for Trypanosoma cruzi adapted to the Gateway® recombination cloning system. Two of these plasmids were designed to express trypanosomal proteins fused to a double tag for tandem affinity purification (TAPtag). The TAPtag and Gateway® cassette were introduced into an episomal (pTEX) and an integrative (pTREX) plasmid. Both plasmids were assayed by introducing green fluorescent protein (GFP) by recombination and the integrity of the double-tagged protein was determined by western blotting and immunofluorescence microscopy. The third Gateway adapted vector assayed was the inducible pTcINDEX. When tested with GFP, pTcINDEX-GW showed a good response to tetracycline, being less leaky than its precursor (pTcINDEX).Fil: Alonso, Victoria Lucia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Biología Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Biología Molecular y Celular de Rosario; Argentina. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmaceuticas. Departamento de Microbiología; ArgentinaFil: Ritagliati, Carla. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Biología Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Biología Molecular y Celular de Rosario; ArgentinaFil: Cribb, Pamela. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmaceuticas. Departamento de Microbiología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Biología Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Biología Molecular y Celular de Rosario; ArgentinaFil: Serra, Esteban Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Biología Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Biología Molecular y Celular de Rosario; Argentina. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas; Argentin

Nonlinear model predictive control for hydrogen production in an ethanol steam reformer with membrane separation

© 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 worksThis paper presents a new Nonlinear Model Predictive Control (NMPC) design for an Ethanol Steam Reformer with Pd-Ag membrane separation stage. The reformer is used to produce pure hydrogen able to feed a Proton Exchange Membrane Fuel Cell. Mass and energy balances are used to obtain the nonlinear dynamic model of both the reforming and the separation stages. Constraints, system nonlinearities and flexible cost function are the main reasons to select an NMPC controller, which is tested against the ordinary differential equations as simulation model, and has an internal model based on the sample data technique.Accepted versio

A aplicabilidade das redes neuronais no prognóstico vital de doentes com insuficiência cardíaca, pela análise da variabilidade da frequência cardíaca

The cardiovascular system in healthy individuals possesses an intrinsic rythm, which varies considerably throughout time. This propriety is fundamental to the adaptability of the system to constant changes, and is denominated as variability. Several theories and descoveries concerning the variability of signals of the cardiovascular systems have been published by several authors, over the last thirty years. These studies call into question the significance of homeostasis of the system. Throughout these investigations, several types of analysis and characterizations were proposed to corrolate how certain pathologies diminish the variability of cardiovascular parameters, leading to the emergence of periodical and poorly adaptable patterns, which took over this system. One of the clinical entities that has already been proven to affect the variability of cardiac frequency, is heart failure. This disease, which affects 1 to 2% of the World's population, presents, in Portugal, an intra-hospital mortality rate of 12,5%. Considering this problematic, an idea to train an artificial inteligence, the neuronal networks, was proposed in order to detect and evaluate the periodicity patterns in the evolution of the cardiovascular parameters (specifically, the cardiac frequency), in a heart failure background. With this analysis, the network transmits its evaluation of the vital prognostic of the patients. After the training and testing phases of the neuronal network, the prognostics were correct in 96,385% of the cases, with a percentage of response certainty of 81,07%. We concluded that this analysis of the variability of the cardiac frequency using a neuronal network, is possible. Moreover, we predict that this may prove to be a very useful tool in clinical practice in the future, and that it might also have several important applications.O sistema cardiovascular de indivíduos saudáveis apresenta um ritmo intrínseco que varia consideravelmente ao longo do tempo. Esta propriedade, que se revela fundamental para a adaptabilidade do sistema às constantes mudanças às quais o corpo humano se encontra sujeito, tem o nome de variabilidade. As teorias e descobertas sobre a variabilidade dos sinais do sistema cardiovascular têm sido publicadas por vários autores, ao longo dos últimos trinta anos. Estes estudos, vieram pôr em causa o significado de homeostasia do sistema. No decorrer destas investigações, foram lançados vários tipos de análises e caracterizações da forma como certas patologias diminuem a variabilidade dos parâmetros cardiovascular, o que leva ao aparecimento de padrões periódicos e pouco adaptáveis, que se apoderam deste sistema. Uma das entidades clínicas, que está comprovada que afeta a variabilidade da frequência cardíaca, é a insuficiência cardíaca. Esta doença que afeta entre 1 a 2% da população mundial, é responsável, em Portugal, por uma taxa de mortalidade intra-hospitalar de 12,5%. No seguimento desta lógica, surgiu a ideia de tentar treinar uma inteligência artificial, as redes neuronais, para detetar e avaliar os padrões de periodicidade, na evolução de parâmetros cardiovasculares (neste caso, a frequência cardíaca), próprios da insuficiência cardíaca. Com esta análise, a rede transmite a sua avaliação do prognóstico vital dos doentes. Após o treino e teste da rede neuronal, obteve-se uma previsão acertada do prognóstico em 96,385% dos casos, com uma percentagem de certeza de resposta de 81,07%. Concluiu-se então, que esta análise da variabilidade da frequência cardíaca, por parte de uma rede neuronal, é possível. Para além disso, prevê-se que esta seja uma útil ferramenta no meio clínico e que esta possa ter várias aplicações no futuro

Modular evolution of the carnivoran pelvic girdle: a three-dimensional morphometric approach

Martín-Serra, A., Figueirido, B., Serrano, F., Palmqvist, P. MODULAR EVOLUTION OF THE CARNIVORAN PELVIC GIRDLE: A THREE-DIMENSIONAL MORPHOMETRIC APPROACH. 75th meeting of Vertebrate Palaeontology. Dallas (Texas). Journal of Vertebrate Palaeontology Supplement (Program and Abstracts) P. 176The pelvic girdle is a key skeletal structure within the appendicular skeleton in quadrupedal mammals. The pelvis anchors many important muscles and connects the hind limb to the axial skeleton. However, unlike other appendicular bones, each hemipelvis is composed of three different girdle bones: ilium, ischium and pubis. Here we investigate if the functional and developmental interactions among these bones accounts for the integration and modularity of the pelvis in mammalian carnivores. We use carnivorous mammals as a case study because our recent work has demonstrated that their appendicular skeleton is also integrated by functional reasons. A series of landmarks in 3D on one half of the pelvic girdle were digitized in a wide sample of living carnivorans. The landmarks were divided into four basic developmental units: illium, ischium, pubis and acetabulum. The latter was considered as a different unit because it interacts with the femoral head during development. Later, we tested different modularity hypotheses that consider all possible modules formed by the combination of these four developmental units. For each hypothesis, we calculated the RV coefficient, a proxy for morphological covariation. We compared each specific hypothesis with a distribution of RV coefficients resulting from randomly-defined modules to assess for statistical significance. One of the hypotheses with more statistical support separates the four original units as modules, which indicates a strong influence of development. Other supported hypotheses clearly point towards an association between the ischium and the pubis, with the illium and acetabulum more or less independent. However, these hypotheses cannot be unequivocally ascribed to functional interactions, because the ischium and the pubis also share some developmental processes. These results clearly indicate that the carnivoran pelvic girdle preserves a developmental modular structure with little modification attributable to functional adaptations, which agrees with previous studies that showed that the pelvis is conservative within each carnivoran family.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tec

A crónica em Ernesto Lara, Filho: baseado nas crónicas da Roda Gigante

Tese de mestrado, Estudos Românicos, Universidade de Lisboa, Faculdade de Letras, 2009Sem a penetração da Língua Portuguesa por terras africanas, concretamente em Angola, desde o período da Expansão por navegantes, marinheiros e religiosos portugueses, não teria sido possível desenvolver este trabalho, que numa perspectiva cultural aborda a alteração que a escrita da crónica produzida no jornal num determinado momento, teria provocado, e, os efeitos que se registaram desde aí na sociedade angolana e na Literatura Portuguesa. Primeiro pelos intervenientes em contacto e depois pela escolarização disponibilizada naquele território, os africanos souberam aproveitar dos portugueses um sistema literário que lhes era oferecido e alterar um paradigma civilizacional, o passar do conhecimento através da escrita. Demonstraram com essa aquisição, serem capazes não só de desenvolver a sua cultura, como também de prosseguir a criação de uma literatura de raízes africanas capaz de se distinguir da original. Desta sua capacidade de aceitação e de adaptação à nova realidade, os angolanos procuraram criar no seu espaço, por oposição a uma forma expressa pelo colonizador, elementos que haveriam de constituir a base dos seus valores identitários e, com estes afirmarem-se no espaço cultural comum. Assistimos por esta via, ao crescimento da obra de Ernesto Lara (Filho) através da crónica desenvolvida no campo jornalístico, e não só, que esta não perdeu a marca de uma escrita literária, participando dessa forma singular no processo de criação da literatura. Por essas razões se determinou a importância de que se revestia o estudo da crónica como parte tradicionalmente vocacionada no jornal, tornando-se numa das vias seleccionadas para a divulgação da Língua Portuguesa e do pensamento angolano, contribuindo dessa forma para a definição dos elementos que configuram o padrão cultural angolano. Fica-nos que a Língua Portuguesa ao ser aceite pela comunidade angolana, passou também, a configurar um novo espaço e a prestar um tributo que a faz ganhar novos contornos no enriquecimento gerado a partir do convívio de que desfruta naquelas paragens.Without the penetration of Portuguese language through African land, particularly in Angola, since the period of expansion by Portuguese navigators, sailors and clergy, it wouldn't have been possible to develop this work, that in a cultural perspective addresses the change that the written chronic produced in the paper at a given time would have caused, and the effects that occurred since then in the Angolan society and Portuguese Literature. First by the contact of direct players and then by the education released there, the Africans were able to take advantage of the Portuguese literary system that was offered, and changed a civilization paradigm, the passing of knowledge through writing. They demonstrated with this, being able not only to develop their culture, but also to pursue the creation of a literature with African roots capable to distinguish itself from the original. From this ability to accept and adapt to the new reality, the Angolans searched to create in their space, opposing to a form expressed by the colonizer, elements that would form the basis of their identity values, and with this, assert themselves in the common cultural area. We had watched the growth of the work of Ernesto Lara (Filho), that through chronic developed in the journalistic field and other elements, didn't lost the mark of a literary writing, participating in the natural process of creating literature. For these reasons is determined the importance of the study of chronic traditionally aimed at the newspaper. It had become one of the routes selected for the dissemination of Portuguese language and Angolan thought, thereby contributing to the definition of the elements that shape the Angolan cultural standard. The Portuguese language being accepted by the Angolan community passed also, to be part of a new space and provided a tribute that made it win new outlines in the enrichment generated from the meeting enjoyed between the two cultures

On the Metacognitive dimension of suspended syntactic constructions. A descriptive study on aphasic Spanish speakers

By taking into consideration conversational outputs from aphasic Spanish speakers, a functional characterisation of suspended syntactic constructions will be provided here. Suspensions of syntactic constructions may be initially thought of as attributed to a language processing deficit in people with aphasia, which is, in fact, only partly the case. An examination of conversational data demonstrates, however, that a comprehensive explanation of syntactic suspensions requires a re-assessment of this phenomenon in the realm of meta-cognitive processes associated with language behaviour. Five general types of procedures and contexts for suspended syntactic constructions will be proposed and discussed in this paper. They differentially involve a series of metacognitive processes such as monitoring for anticipation and prevention of foreseeable mistakes, intersemiotic control of language production and communication by the use of gesturing, motivational and intentional aspects associated with language use, collaborative tasks in language production and theory of mind phenomena

Fast model predictive control for hydrogen outflow regulation in ethanol steam reformers

© 20xx 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.In the recent years, the presence of alternative power sources, such as solar panels, wind farms, hydropumps and hydrogen-based devices, has significantly increased. The reasons of this trend are clear: contributing to a reduction of gas emissions and dependency on fossil fuels. Hydrogen-based devices are of particular interest due to their significant efficiency and reliability. Reforming technologies are among the most economic and efficient ways of producing hydrogen. In this paper we consider the regulation of hydrogen outflow in an ethanol steam reformer (ESR). In particular, a fast model predictive control approach based on a finite step response model of the process is proposed. Simulations performed using a more realistic non-linear model show the effectiveness of the proposed approach in driving the ESR to different operating conditions while fulfilling input and output constraints.Peer ReviewedPostprint (author's final draft