Assessment of sensor performance

There is an international commitment to develop a comprehensive, coordinated and sustained ocean observation system. However, a foundation for any observing, monitoring or research effort is effective and reliable in situ sensor technologies that accurately measure key environmental parameters. Ultimately, the data used for modelling efforts, management decisions and rapid responses to ocean hazards are only as good as the instruments that collect them. There is also a compelling need to develop and incorporate new or novel technologies to improve all aspects of existing observing systems and meet various emerging challenges. Assessment of Sensor Performance was a cross-cutting issues session at the international OceanSensors08 workshop in Warnemünde, Germany, which also has penetrated some of the papers published as a result of the workshop (Denuault, 2009; Kröger et al., 2009; Zielinski et al., 2009). The discussions were focused on how best to classify and validate the instruments required for effective and reliable ocean observations and research. The following is a summary of the discussions and conclusions drawn from this workshop, which specifically addresses the characterisation of sensor systems, technology readiness levels, verification of sensor performance and quality management of sensor systems

El imaginario medieval en la universidad franquista.

En su visión de la Universidad, al menos en la primera década del Régimen, el franquismo partió de tres lecturas aparentemente contradictorias de la educación superior: el idealismo falangista de preguerra, las posturas de Renovación Española y la derecha reaccionaria en general, y el ejemplo (fascista) italiano. Un elemento común a estos tres universos conceptuales fue la referencia sesgada a la Edad Media universitaria como modelo. Este horizonte cuajó en el mito del Colegio Mayor, eje de la nueva legislación universitaria, nunca aplicada. Hasta avanzado el franquismo se percibe la influencia de este planteamiento singular.In its concept of University, at least during the first decade of power, the franquist regime proposed three apparently contradicting views of post-secundary education: the pre-war falangist idealism, the positions of Renovación Española and the right-wing reactionaries in general, and the (fascist) italian example. One common element to there three conceptual universes was the biased reference to the middle ages university as a model. This visión took sharpe in the muth of Colegio Mayor, turning point of the new university legislation never implemented. Even in late franquism one detects the influence of this singular school of thought.Publicad

Reconstructing the evolutionary path of galaxies: a study of the main properties of early- and late-type galaxies over the redshift range 0.6<z<2.5.

The aim of the analysis carried out in this thesis work is twofold. On the one hand we are interested in addressing whether a sample of morphologically selected early-type galaxies (ETGs) differs from a sample of passive galaxies in terms of galaxy statistics. On the other hand we study how the relative abundance of galaxies, the number density, and, the stellar mass density of different morphological types change over the redshift range 0.6 ≤ z ≤ 2:5. Furthermore, we investigated if these galaxies and their properties can provide evidences on the possible variation of the abundance of low-to-high mass stars in galaxies, i.e. the variation of the IMF, with redshift, stellar mass and colours. From the 1302 galaxies brighter than Ks(AB)=22 selected from the GOODS-MUSIC catalogue, we classified the ETGs, i.e. elliptical (E) and spheroidal galaxies (E/S0), on the basis of their morphology and the passive galaxies on the basis of their specific star formation rate (sSFR≤10-11 yr-1). Since the definition of a passive galaxy depends on the model parameters assumed to fit the spectral energy distribution of the galaxy, in addition to the assumed sSFR threshold, we probed the dependence of this definition and selection on the stellar initial mass function (IMF). We find that spheroidal galaxies cannot be distinguished from the other morphological classes on the basis of their low star formation rate, irrespective of the IMF adopted in the models. In particular, we find that a large fraction of passive galaxies (> 30 %) are disc-shaped objects and that the passive selection misses a significant fraction (~ 26 %) of morphologically classified ETGs. Using the sample of 1302 galaxies morphologically classified into spheroidal galaxies (ETGs) and non-spheroidal galaxies (LTGs), we find that the fraction of these two morphological classes is constant over the redshift range 0:6 ≤ z ≤ 2:5, being 20-30 % the fraction of ETGs and 70-80 % the fraction of LTGs. However, at z 3 - 4 X 1011M) does not increase from z ~ 2:5, contrary to the lower mass galaxies. This suggests that the most massive galaxies formed at z > 2:5 - 3 and that the assembly of such high-mass galaxies is not effective at lower redshift. From the analysis f the galaxy SEDs, reproduced with different IMFs, we found that the bulk (> 80%) of the 1302 galaxies are best-fitted with IMFs that contain a greater relative number of low-mass stars compared to a Salpeter IMF. This trend is constant with redshift and galaxy mass, testifying that from our data we do not observe an IMF variation as function of the cosmic time, galaxy mass and galaxy morphology

La historia de las universidades en los nuevos planes de estudio. La Universidad Pública de Navarra

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Treinta años de historiografía francesa sobre cultura universitaria

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