??C??mo suenan las islas? : taller sobre ecolog??a ac??stica destinado a alumnos de altas capacidades

Se presenta un taller que lleva por t??tulo ?????C??mo suenan las islas???? que fue dise??ado para dar respuesta a la convocatoria del Gobierno de Canarias en el a??o 2009 dentro del programa PREMUN (Programa de Enriquecimiento y Mentor??a Universitaria para el alumnado con altas capacidades intelectuales de Educaci??n Secundaria). En la isla de Lanzarote se programaron cinco talleres destinados a 12 alumnos y alumnas (de 1.?? a 4.?? de la ESO) a desarrollar durante cuatro s??bados durante los meses de abril y mayo. Se profundiz?? en la ecoac??stica para sumergir al alumnado en la complejidad del paisaje sonoro, para intervenir en ??l buscando el bienestar de cuantos habitamos el planeta (incluidos los animales).

Herramienta para la evaluaci??n ac??stica de la voz en entornos hostipalarios : EVALUA

Resumen basado en el de la publicaci??n

L'Àmbit urbà i periurbà de Rhode entre el 195 aC i el segle II dC

Aquest projecte de recerca es planteja, com a objectiu principal, elaborar una contextualització de Rhode entre el 195 aC i mitjan segle II dC. Es tracta d’assolir noves hipòtesis sobre el final relativament sobtat que pateix la fundació massaliota, quin són els motius del seu abandonament, si aquest es produeix totalment, quins fets porten a la recuperació d’aquest espai i quin paper pot jugar l'àmbit periurbà de Rhode durant tot aquest període. Alhora, es cerca posar en relació els esdeveniments que passen a Rhode amb el procés de romanització que pateix el territori

Els precedents de la Catedral de Santa Maria de Girona. De la plaça religiosa del fòrum romà al conjunt arquitectònic de la seu romànica (ss. I aC - XIV dC)

S'estudia els precedents de l'actual edifici de la Catedral de Girona prenent com a guia bàsica les restes físiques detectades en el sector, combinant-les amb nombroses notícies procedents de la documentació escrita i la consideració de paral·lels. Un apartat historiogràfic posa de relleu les diferents opinions sobre la història de la Catedral i dels seus edificis d'ençà del segle XVII. El conjunt d'època romana consistia en la plaça religiosa del fòrum de la ciutat. Com que els segles de l'Antiguitat Tardana i Alta Edat Mitjana no deixaren rastre físic identificable, el següent conjunt arquitectònic estudiat és el de la catedral del segle XI (iniciada vers 1010), detallada en cadascuna de les seves parts així com en els seus aspectes generals (implantació, tècnica constructiva, decoració). Finalment, l'estudi del conjunt claustral (configuració i funcions) permet aclarir determinats aspectes de la història institucional del capítol de la Catedral.

An analysis of the relationship between immittance results and AC/BC

This paper analyzes subjects with air bone (A/B) gaps (a comparison of air-conducted thresholds and bone-conducted thresholds) and whether tympanometry (the type of tympanogram, static admittance, or peak pressure) can predict the size of the A/B gap.

Remote sensing of intertidal morphological change in Morecambe Bay, U.K., between 1991 and 2007

Tidal Flats are important examples of extensive areas of natural environment that remain relatively unaffected by man. Monitoring of tidal flats is required for a variety of purposes. Remote sensing has become an established technique for the measurement of topography over tidal flats. A further requirement is to measure topographic changes in order to measure sediment budgets. To date there have been few attempts to make quantitative estimates of morphological change over tidal flat areas. This paper illustrates the use of remote sensing to measure quantitative and qualitative changes in the tidal flats of Morecambe Bay during the relatively long period 1991–2007. An understanding of the patterns of sediment transport within the Bay is of considerable interest for coastal management and defence purposes. Tidal asymmetry is considered to be the dominant cause of morphological change in the Bay, with the higher currents associated with the flood tide being the main agency moulding the channel system. Quantitative changes were measured by comparing a Digital Elevation Model (DEM) of the intertidal zone formed using the waterline technique applied to satellite Synthetic Aperture Radar (SAR) images from 1991–1994, to a second DEM constructed from airborne laser altimetry data acquired in 2005. Qualitative changes were studied using additional SAR images acquired since 2003. A significant movement of sediment from below Mean Sea Level (MSL) to above MSL was detected by comparing the two Digital Elevation Models, though the proportion of this change that could be ascribed to seasonal effects was not clear. Between 1991 and 2004 there was a migration of the Ulverston channel of the river Leven north-east by about 5 km, followed by the development of a straighter channel to the west, leaving the previous channel decoupled from the river. This is thought to be due to independent tidal and fluvial forcing mechanisms acting on the channel. The results demonstrate the effectiveness of remote sensing for measurement of long-term morphological change in tidal flat areas. An alternative use of waterlines as partial bathymetry for assimilation into a morphodynamic model of the coastal zone is also discussed.

Transgenic approaches to crop improvement

Transgenic crops are now grown commercially on several million hectares, principally in North America. To date, the predominant crops are maize (corn), soybean, cotton, and potatoes. In addition, there have been field trials of transgenics from at least 52 species including all the major field crops, vegetables, and several herbaceous and woody species. This review summarizes recent data relating to such trials, particularly in terms of the trends away from simple, single gene traits such as herbicide and insect resistance towards more complex agronomic traits such as growth rate and increased photosynthetic efficiency. Much of the recent information is derived from inspection of patent databases, a useful source of information on commercial priorities. The review also discusses the time scale for the introduction of these transgenes into breeding populations and their eventual release as new varieties.

A benchmark method for global optimization problems in structure determination from powder diffraction data

Quasi-Newton-Raphson minimization and conjugate gradient minimization have been used to solve the crystal structures of famotidine form B and capsaicin from X-ray powder diffraction data and characterize the chi(2) agreement surfaces. One million quasi-Newton-Raphson minimizations found the famotidine global minimum with a frequency of ca 1 in 5000 and the capsaicin global minimum with a frequency of ca 1 in 10 000. These results, which are corroborated by conjugate gradient minimization, demonstrate the existence of numerous pathways from some of the highest points on these chi(2) agreement surfaces to the respective global minima, which are passable using only downhill moves. This important observation has significant ramifications for the development of improved structure determination algorithms.

Formulating generalised 'goal games' against nature: An illustration from decision-making under uncertainty in agriculture

The games-against-nature approach to the analysis of uncertainty in decision-making relies on the assumption that the behaviour of a decision-maker can be explained by concepts such as maximin, minimax regret, or a similarly defined criterion. In reality, however, these criteria represent a spectrum and, the actual behaviour of a decision-maker is most likely to embody a mixture of such idealisations. This paper proposes that in game-theoretic approach to decision-making under uncertainty, a more realistic representation of a decision-maker's behaviour can be achieved by synthesising games-against-nature with goal programming into a single framework. The proposed formulation is illustrated by using a well-known example from the literature on mathematical programming models for agricultural-decision-making. (c) 2005 Elsevier Inc. All rights reserved.