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Madrid, Spain

Uned 5 was a BAFTA award-winning teenage magazine show, broadcast live every week on Welsh channel S4C. The programme was the channel's flagship youth magazine for over sixteen years.The show was broadcast from a purpose built 'house' at a studio in Caernarfon, and featured celebrity guests, news items, lively chat, bands, sketches and filmed interviews. Despite the obvious ties to The Big Breakfast, the show originally had more in common with the BBC's Blue Peter, until later relaunches saw Uned 5 target an older, teenage audience.On 24 November 2009, S4C announced that the programme would be axed as part of a major revamp of the station's youth programming. The very last edition of Uned 5 was broadcast on Sunday 30 May 2010. Wikipedia.

Heterogeneity and disorder univocally leads to distortion phenomena in the immittance response of a system. The analysis of this response in terms of a distribution of relaxation times (DRT) has become an important topic of basic and applied research. In this work we theoretically and numerically study the impact of the mathematical properties of a distribution function of relaxation times (DFRT) on the frequency dispersion displayed by the immittance response of a distributed model for an ideal dielectric system such as an ideally-polarized electrode, paying special attention to constant-phase-element (CPE) behavior. The analysis of the problem encompasses both explicit and implicit results reported in the literature, and a number of new findings. It is shown, for instance, that CPE exponent is upper bounded by 1, as found in experiments. Conditions to be fulfilled by the DFRT in order to give frequency dispersion are revealed, and CPE behavior is related to scale invariance. The extent of this capacitance dispersion on the frequency spectrum of the response is also addressed for both infinite and finite systems. © 2015 Elsevier Ltd. All rights reserved. Source

Sebastian R.,Spanish University for Distance Education (UNED)
International Journal of Electrical Power and Energy Systems

Wind Diesel Hybrid Systems (WDHS) are isolated power systems which combine Diesel Generators (DG) with Wind Turbine Generators (WTG). Depending on the generators which are supplying, high penetration (HP) WDHS have three operation modes: Diesel Only (DO), Wind Diesel (WD) and Wind Only (WO). The HP-WDHS presented in this article consists of a Diesel Engine (DE), a Synchronous Machine (SM), a Wind Turbine Generator, the consumer load, a Ni-Cd Battery based Energy Storage System (BESS) and a Dump Load. The DE can be engaged (DO and WD modes) or disengaged (WO mode) from the SM by means of a clutch. All the models of the previously mentioned components are presented and the performance of the WDHS has been tested through dynamic simulation. Simulation results with graphs for the frequency and voltage of the isolated power system, active powers generated/absorbed by the different elements and the battery voltage/current/state of charge are presented for a load change in WO mode and for the transition from WO to WD mode in order to substitute a supplying BESS for the DE as the active power source. © 2010 Elsevier Ltd. All rights reserved. Source

Gomez A.,Spanish University for Distance Education (UNED)
Personality & social psychology bulletin

Two experiments integrated research on the roles of common identity and social norms in intergroup orientations. Experiment 1 demonstrated that learning that ingroup members categorized the ingroup (Spaniards) and outgroup (Eastern European immigrants) within a common identity (European) produced more positive intergroup orientations toward immigrants. By contrast, learning that outgroup members held the same position elicited less positive orientations compared with a condition in which the information came from a neutral source. The effects were mediated by one-group representations. Experiment 2 also found that endorsement of a common identity generated more positive intergroup orientations when it was expressed by ingroup than outgroup members and revealed how this effect may be sequentially mediated by personal one-group representations and symbolic threat. Source

Alvarez-Alonso D.,Spanish University for Distance Education (UNED)
Quaternary International

This paper presents the results of the analysis carried out on different assemblages and stratigraphic contexts dated before MIS 4 in Cantabrian Region (in the northern of the Iberian Peninsula). Despite the reduced corpus available, it was possible to establish the existence of Mousterian settlements throughout the Cantabrian region at the end of the Middle Pleistocene, particularly during interstadial MIS 5e and MIS 6. Whereas the evidence for the Lower Palaeolithic is limited to a few sites such as Louselas, Cabo Busto or Irikaitz, which contain characteristic Acheulean tools, the Cantabrian coast was densely populated by Neanderthal settlements during the MIS 5e Climatic Optimum. This settlement pattern seems to include open air sites, together with uninterrupted habitat in caves from MIS 6 to the end of the Mousterian period in the region.This paper shows the results and conclusions of techno-typological, geoarchaeological and spatial analysis of the Final Middle Pleistocene and Upper Pleistocene assemblages and settlements in the Cantabrian Region. The results of this analysis established some differences between two kinds of settlements in the area: Acheulean assemblages and sites; and the first Middle Palaeolithic evidence in the final Middle Pleistocene and in MIS 5e. © 2012 Elsevier Ltd and INQUA. Source

One of the drawbacks we face up when analyzing gene to phenotype associations in genomic data is the ugly performance of the designed classifier due to the small sample-high dimensional data structures (n ≪ p) at hand. This is known as the peaking phenomenon, a common situation in the analysis of gene expression data. Highly predictive bivariate gene interactions whose marginals are useless for discrimination are also affected by such phenomenon, so they are commonly discarded by state of the art sequential search algorithms. Such patterns are known as weak/marginal strong bivariate interactions. This paper addresses the problem of uncovering them in high dimensional settings. We propose a new approach which uses the quadratic discriminant analysis (QDA) as a search engine in order to detect such signals. The choice of QDA is justified by a simulation study for a benchmark of classifiers which reveals its appealing properties. The procedure rests on an exhaustive search which explores the feature space in a blockwise manner by dividing it in blocks and by assessing the accuracy of the QDA for the predictors within each pair of blocks; the block size is determined by the resistance of the QDA to peaking. This search highlights chunks of features which are expected to contain the type of subtle interactions we are concerned with; a closer look at this smaller subset of features by means of an exhaustive search guided by the QDA error rate for all the pairwise input combinations within this subset will enable their final detection. The proposed method is applied both to synthetic data and to a public domain microarray data. When applied to gene expression data, it leads to pairs of genes which are not univariate differentially expressed but exhibit subtle patterns of bivariate differential expression. We have proposed a novel approach for identifying weak marginal/strong bivariate interactions. Unlike standard approaches as the top scoring pair (TSP) and the CorScor, our procedure does not assume a specified shape of phenotype separation and may enrich the type of bivariate differential expression patterns that can be uncovered in high dimensional data. Source

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