Arturo Pavón, recorrido diacrónico y análisis musicológico

Esta comunicación es la síntesis del análisis musicológico del corpus musical de uno de los máximos representantes de la “generación canónica” del piano flamenco: Arturo Pavón. El objetivo principal es realizar un recorrido diacrónico analizando sus grabaciones, ya que destapa por qué se convertiría prácticamente en la única referencia para la generación posterior, destacando etapas y obras claves, como las colaboraciones con sus familiares –Pepe Pinto, Luisa Ortega y Manolo Caracol–, la Suite Flamenca y otros trabajos posteriores. De esta manera, se presentan las bondades y problemáticas de su obra, para que futuras investigaciones puedan resolver cuestiones tan primordiales como una cronología exhaustiva.This communication is the synthesis of Arturo Pavon’s work musicological analysis, one of the leading representatives of the flamenco pianists “canonical generation”. His recordings diachronic tour uncover why he would practically become the only reference for the following generation, emphasizing stages and key works, as the collaborations with his relatives –Pepe Pinto, Luisa Ortega and Manolo Caracol–, Suite Flamenca and later works. The paper aim is to present his work goodness and problems, so future researchers can resolve some of the key issues such as an exhaustive chronology

E-Sports : evolución y tratamiento en los medios. El caso League of Legends

Este Trabajo Fin de Grado (TFG) tiene como objetivo definir qué son los deportes electrónicos (eSports) y cuál ha sido su la evolución desde sus inicios hasta nuestros días centrándose en la repercusión mediática, tanto a nivel nacional como internacional, recibida y la importancia de las redes sociales y las Tecnologías de la Información y la Comunicación (TIC). Proponemos una investigación centrada en la revisión del contexto en el que se produce el fenómeno de los deportes electrónicos, unas manifestaciones sociales que se articulan alrededor de los videojuegos multijugador en línea, donde las relaciones con el resto de jugadores son fundamentales. A lo largo de nuestro trabajo nos acercaremos a los cambios que han experimentado los hábitos de consumo de los videojuegos desde la popularización de Internet y las herramientas derivadas de la Web 2.0, pues los deportes electrónicos responden a una rica y variada fenomenología social que ha cambiado la forma de consumir videojuegos como entretenimiento, pasando de su consumo a la expectación de la competición en los mismos, igual que ocurre con los deportes profesionales. Para ello, nos centraremos en el estudio de caso del videojuego online League of Legends, el juego más jugado del mundo y que cuenta por millones los espectadores que atrae en las competiciones. Finalmente, se constata la relación existente entre la dimensión social de los videojuegos y la cultura participativa, fijando la mirada de futuras líneas de investigación construidas alrededor del fenómeno de los deportes electrónicos.Universidad de Sevilla. Grado en Periodism

Validation and quality assurance applied to goat milk chemical composition: minerals and trace elements measurements

In the present study, quality assurance programmes were implemented to validate and control the analytical methodologies used for the characterization of minerals and trace elements in goat milk from Portuguese breeds. With the exception of chloride that was determined by potentiometric titration, all the other elements were determined by spectroscopic techniques after different sample decomposition: P was measured by ultraviolet-visible molecular absorption spectrometry, Ca, Fe, K, Mg, Mn, Na and Zn by flame atomic absorption spectrometry and Cd, Co, Cr, Cu, Mo, Ni and Pb by electrothermal atomic absorption spectrometry. The methods performance characteristics, namely specificity, limit of detection, limit of quantification, working range, precision and trueness were evaluated. Measurement uncertainty was expressed in terms of precision and trueness. Precision under intralaboratory reproducibility conditions was estimated from triplicate analysis, and the trueness component was estimated in terms of overall recovery using either skim milk powder certified reference materials or spiked samples. The results obtained are discussed on the basis of the performance criteria required by EC regulations to verify when a method is suitable for food control. The methods used for the characterization of minerals and trace elements in goat milk complied with EC requirements since there was no matrix influence, the Horrat values were < 2.0, recoveries were within the interval 1.00 ± 0.10 for minerals and 1.00 ± 0.20 for trace elements and the combined uncertainty of the results were lower than the maximum standard uncertainty calculated using the uncertainty function approach. In relation to the limits of detection and quantification, the limits obtained for Pb were lower than those specified by EC regulation

Screening for RAG activity in haematopoietic tumours using a novel reporter strategy

Tese de mestrado, Biologia (Biologia Molecular Humana), 2009, Universidade de Lisboa, Faculdade de CiênciasResumo alargado em português disponível no documentoRecombination-Activating Genes (RAG) 1 and 2, form the site specific recombinase that mediates V(D)J recombination at the antigen receptor loci, a process responsible for lymphocyte diversity. RAG can also interact with degenerated recognition signal sequences (cRSSs) distributed throughout the genome and potentially induce genomic instability. To this date, no available reporter of RAG activity has gathered the versatile features of a molecular tool with a simple method of readout. Our laboratory has recently generated GFPi, a novel episomal/retroviral fluorescence-based molecular tool that allows for fast assessment of RAG activity in various cell types. We have found that the GFPi reporter can not only provide in vitro quantitative measurement transiently, being sensitive to RSS sequence degeneration, but also ex vivo in its integrated form as a stable substrate. We have also optimized the in vitro recombination assay (IVRA) for the detection of a broader window of RAG activity values. This novel assay allowed us to quantify the efficiency of RAG recombination of a selected set of cRSSs, namely a previously undetected cRSS found in the first exon of the phosphatase and tensin homologue deleted on chromosome 10 (PTEN) gene, which is known to be involved in leukemogenesis. PTEN cRSS was proved to be as functional as other V(D)J loci RSSs, and this activity correlates with a novel mutation which was recently found in a leukaemic patient in this same site. We also made use of the retroviral-based form of GFPi in order to quantify endogenous RAG activity in human haematopoietic tumour cell lines of lymphoid and myeloid origin. Although we have found lineage-specific differences on RAG activity (namely in Reh B-cell line which presented intense RAG activity), we found no signs of promiscuous endogenous RAG activity in myeloid cell lines in a short timespan. Thus, we believe the GFPi reporter gathers all the requisites for an efficient RAG activity reporter, coupled with a fast and direct method of readout. Moreover, we now possess a robust tool that is suitable for a number of applications, namely unravelling the relation between RAG promiscuous activity and leukaemogenesis, which was preliminary addressed in this work

Real-time Video Fusion for Surveillance Applications

A área da vigilância está cada vez mais presente nas nossas vidas. Desde em ambientes urbanos para prevenção, detecção e resolução de crimes, prevenção de vandalismo e controlo de tráfego rodoviário até em ambientes mais remotos como é o caso de aplicações militares para identificação e localização de forças inimigas. Com a evolução da tecnologia a área da vigilância está também a ficar mais sofisticada, os sistemas cada vez têm melhor qualidade, são mais seguros, os custos são mais baixos, há uma maior escalabilidade de sistemas e uma melhor integração entre vários tipos de sistemas de vigilância diferentes. Um dos principais tipos de vigilância é a vídeo-vigilância. Como o nome indica, esta técnica consiste na constante captura de imagens de forma a obter uma sequência dos acontecimentos num determinado local. No entanto, uma das desvantagens deste sistema é a dependência das condições de visibilidade no local. No ambiente desta dissertação foi desenvolvido um sistema em tempo real que seja capaz de recolher imagens com informação útil mesmo em condições de pouca visibilidade, isto inclui, por exemplo, ambientes nocturnos, de nevoeiro ou com fumo. Para tal foi usada a técnica de fusão de imagens, neste caso entre uma imagem no espectro infravermelho e uma imagem no espectro visível. A recolha complementar de imagens no espectro infravermelho vai introduzir mais informação sobre o ambiente, nomeadamente acerca da temperatura. Esta informação extra vai depois ser fundida com a imagem do espectro visível de forma a gerar uma só imagem que contém as informações de ambas as imagens visível e infravermelha.Surveillance is becoming a really important element in our daily lives. From urban environments as crime prevention, detection and resolution, vandalism prevention and traffic flow control to more remote environments such as military applications, for instance, to identify and locate enemy forces. As technology develops, the surveillance subject is also getting more sophisticated. The systems are improving quality wise, are getting safer, costs are getting lower, there is higher scalability of systems and there is better integration between different types of surveillance systems. One of the main types of surveillance is known as video surveillance. As the name states, this technique consists of a constant capture of images in order to obtain a sequence of events happening in a given location. However, one of the main disadvantages of these systems is the dependency on the visibility conditions available in the location. In the scope of this dissertation a real-time system capable of capturing images containing useful information even in low visibility conditions, such as nighttime, fog or smoke, was developed. For this purpose, a technique known as image fusion was used. In this case, a fusion between an image contained in the infrared spectrum and another contained in the visible spectrum. Sensing a complementary image of the environment in the infrared spectrum will provide extra information, such as the temperature. This extra information will then be fused with the visible spectrum image, generating just one image containing the information from both the visible and infrared images

Assessing User Expertise in Spoken Dialog System Interactions

Identifying the level of expertise of its users is important for a system since it can lead to a better interaction through adaptation techniques. Furthermore, this information can be used in offline processes of root cause analysis. However, not much effort has been put into automatically identifying the level of expertise of an user, especially in dialog-based interactions. In this paper we present an approach based on a specific set of task related features. Based on the distribution of the features among the two classes - Novice and Expert - we used Random Forests as a classification approach. Furthermore, we used a Support Vector Machine classifier, in order to perform a result comparison. By applying these approaches on data from a real system, Let's Go, we obtained preliminary results that we consider positive, given the difficulty of the task and the lack of competing approaches for comparison.Comment: 10 page

ν-inflaton dark matter

We present a unified model where the same scalar field can drive inflation and account for the present dark matter abundance. This scenario is based on the incomplete decay of the inflaton field into right-handed neutrino pairs, which is accomplished by imposing a discrete interchange symmetry on the inflaton and on two of the right-handed neutrinos. We show that this can lead to a successful reheating of the Universe after inflation, while leaving a stable inflaton remnant at late times. This remnant may be in the form of WIMP-like inflaton particles or of an oscillating inflaton condensate, depending on whether or not the latter evaporates and reaches thermal equilibrium with the cosmic plasma. We further show that this scenario is compatible with generating light neutrino masses and mixings through the seesaw mechanism, predicting at least one massless neutrino, and also the observed baryon asymmetry via thermal leptogenesis.publishe