University of Seville

About: University of Seville is a education organization based out in Seville, Andalucía, Spain. It is known for research contribution in the topics: Population & Context (language use). The organization has 20098 authors who have published 47317 publications receiving 947007 citations. The organization is also known as: Universidad de Sevilla.

Halomonas organivorans sp. nov., a moderate halophile able to degrade aromatic compounds.

Abstract: A group of moderately halophilic bacteria able to degrade aromatic organic compounds contaminating hypersaline habitats in southern Spain have been isolated and characterized. The taxonomic position of these strains was determined using phenotypic, phylogenetic and genotypic methods. The G+C content of their DNA ranged from 61·0 to 62·9 mol%. DNA–DNA hybridization studies showed that they constitute a genospecies, having DNA–DNA hybridization values of 90–100 %. Analysis of the complete 16S rRNA gene sequence revealed a high level of similarity with members of the genus Halomonas, sharing 98 % 16S rRNA gene sequence similarity with the type strains of Halomonas salina and Halomonas halophila. However, phenotypic differences and the low level of DNA–DNA hybridization suggest the placement of these strains as a novel species within the genus Halomonas. The name Halomonas organivorans sp. nov. is proposed, with strain G-16.1T (=CECT 5995T=CCM 7142T) as the type strain. This novel species of Halomonas is characterized by its ability to use a wide range of organic compounds (benzoic acid, p-hydroxybenzoic acid, cinnamic acid, salicylic acid, phenylacetic acid, phenylpropionic acid, phenol, p-coumaric acid, ferulic acid and p-aminosalicylic acid), and it could be useful for the decontamination of polluted saline habitats.

Economic growth and energy consumption: The Energy-Environmental Kuznets Curve for Latin America and the Caribbean

Abstract: This paper investigates the relationship between economic growth and energy consumption using the hypothesis postulated for the Energy-Environmental Kuznets Curve, which assumes an inverted-U shape relationship between income and energy consumption. Panel data for 22 Latin American and Caribbean countries for the period 1990–2011 were used. Absolute energy consumption was chosen as an environmental pressure indicator, because energy consumption is the major contributor of emissions pollutants. The results obtained in the estimations show that the hypothesis postulated for the Energy-Environmental Kuznets Curve is not supported for the region. On the contrary, the results show an exponential growth as Gross Value Added grows. Also, notable differences are shown between the analyzed economies.

Distributed model predictive control based on a cooperative game

Abstract: In this work we propose a distributed model predictive control scheme based on a cooperative game in which two different agents communicate in order to find a solution to the problem of controlling two constrained linear systems coupled through the inputs. We assume that each agent only has partial information of the model and the state of the system. In the proposed scheme, the agents communicate twice each sampling time in order to share enough information to take a cooperative decision. We provide sufficient conditions that guarantee practical stability of the closed-loop system as well as an optimization-based procedure to design the controller so that these conditions are satisfied. The theoretical results and the design procedure are illustrated using two different examples. Copyright © 2010 John Wiley & Sons, Ltd.