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Almeria, Spain

The University of Almeria is a public university situated in Almeria, Spain. Located on the shore of the Mediterranean Sea, it belongs to the La Cañada de San Urbano district of Almeria City. In 2008 the University offered 38 different degree programmes, with 871 lecturers, and 11,628 students. At the time of its foundation, its initial governing was assigned to D. Alberto Fernández Gutiérrez, as Vice-Chancellor.The current Vice-Chancellor is D .Pedro Roque Molina García, elected by the university community in the elections that took place on Monday 26 March 2007, taking over from D. Alfredo Martinez Almécija. The student participation in these elections was 23%. Wikipedia.

Agulleiro J.I.,University of Almeria
PloS one | Year: 2012

Tomography allows elucidation of the three-dimensional structure of an object from a set of projection images. In life sciences, electron microscope tomography is providing invaluable information about the cell structure at a resolution of a few nanometres. Here, large images are required to combine wide fields of view with high resolution requirements. The computational complexity of the algorithms along with the large image size then turns tomographic reconstruction into a computationally demanding problem. Traditionally, high-performance computing techniques have been applied to cope with such demands on supercomputers, distributed systems and computer clusters. In the last few years, the trend has turned towards graphics processing units (GPUs). Here we present a detailed description and a thorough evaluation of an alternative approach that relies on exploitation of the power available in modern multicore computers. The combination of single-core code optimization, vector processing, multithreading and efficient disk I/O operations succeeds in providing fast tomographic reconstructions on standard computers. The approach turns out to be competitive with the fastest GPU-based solutions thus far. Source

Rodrigo F.S.,University of Almeria
International Journal of Climatology | Year: 2010

In this study trends in the probability of extreme rainfall in the Iberian Peninsula at a daily scale from 1951 to 2002 have been analysed. A simple statistical model of daily precipitation based on the gamma distribution is applied to data from 22 stations in the Iberian Peninsula from 1951 to 2002. The Mann-Kendall test was applied to look for trends of the distribution parameters. It is shown that the scale parameter remains stable, while the shape parameter is most variable, spatially and temporally, with significant negative trends in many stations. As a consequence, the trend of the probability of daily rainfall lesser than the 5th percentile is positive, mainly to the north and to the south of the Iberian Peninsula; meanwhile the probability of daily rainfall higher than the 95th percentile is negative. This behaviour, with slight spatial differences, is observed in the four seasons of the year. Results corresponding to the probability of heavy rainfalls are confirmed using the stretched exponential distribution. The possible influence of teleconnection patterns (North Atlantic Oscillation, East Atlantic, Mediterranean Oscillation pattern) is analysed calculating the correlation coefficients between teleconnection indices and the gamma distribution parameters. The winter NAO index shows significant relationships with the scale parameter, but not with the shape parameter. The East Atlantic pattern shows significant correlation coefficients with the shape parameter of 5 stations in winter, and 5 stations in autumn, but these results are not conclusive. These results suggest that the decrease of this parameter, and the behaviour of extreme rainfall probabilities, must be explained by other mechanisms. © 2009 Royal Meteorological Society. Source

Puertas A.M.,University of Almeria
Journal of Physics Condensed Matter | Year: 2010

We present simulations of the aging of a quasi-hard-sphere glass, with Newtonian and Brownian microscopic dynamics. The system is equilibrated at the desired density (above the glass transition in hard spheres) with short-range attractions, which are removed at t = 0. The structural part of the decay of the density correlation function can be time rescaled to collapse onto a master function independent of the waiting time, tw, and the timescale follows a power law with tw, with exponent z ∼ 0.89; the non-ergodicity parameter is larger than that of the glass transition point (the localization length is smaller) and oscillates in harmony with Sq. The aging with both microscopic dynamics is identical, except for a scale factor from the age in Newtonian to the age in Brownian dynamics. This factor is approximately the same as that which scales the α-decay of the correlation function in fluids close to the glass transition. © 2010 IOP Publishing Ltd. Source

Urrestarazu M.,University of Almeria
Journal of Food, Agriculture and Environment | Year: 2012

Technology for the establishment of an urban canopy has advanced rapidly in recent years, but our understanding of how these systems will develop over time remains limited. We have designed and built a sustainable green wall prototype that provides architectural and environmental benefits through the use of independent modular units, renewable energy, a closed system, environmentally friendly substrates, and a single type of Mediterranean native vegetation. This system has several advantages over other systems on the market and less risk of plant health problems. Source

Oller I.,CIEMAT | Malato S.,CIEMAT | Sanchez-Perez J.A.,University of Almeria
Science of the Total Environment | Year: 2011

Nowadays there is a continuously increasing worldwide concern for development of alternative water reuse technologies, mainly focused on agriculture and industry. In this context, Advanced Oxidation Processes (AOPs) are considered a highly competitive water treatment technology for the removal of those organic pollutants not treatable by conventional techniques due to their high chemical stability and/or low biodegradability. Although chemical oxidation for complete mineralization is usually expensive, its combination with a biological treatment is widely reported to reduce operating costs. This paper reviews recent research combining AOPs (as a pre-treatment or post-treatment stage) and bioremediation technologies for the decontamination of a wide range of synthetic and real industrial wastewater. Special emphasis is also placed on recent studies and large-scale combination schemes developed in Mediterranean countries for non-biodegradable wastewater treatment and reuse. The main conclusions arrived at from the overall assessment of the literature are that more work needs to be done on degradation kinetics and reactor modeling of the combined process, and also dynamics of the initial attack on primary contaminants and intermediate species generation. Furthermore, better economic models must be developed to estimate how the cost of this combined process varies with specific industrial wastewater characteristics, the overall decontamination efficiency and the relative cost of the AOP versus biological treatment. © 2010 Elsevier B.V. Source

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