Abstract Torrential rainfall regimes, among others, are the origin of accelerated soil erosion. The Spanish southeastern Mediterranean region is characterised by an arid climate regime affected extreme erosion episodes with important loss sediments. Soil effects even more noticeable in areas where has been anthropically degraded, as mining district Sierra Minera de Cartagena . present research ...

Introduction: The image quality of computed tomography (CT) can be seriously lowered by metal implants of patients. These implants are known to exert a significant impact on diagnostic accuracy due to artifacts. The current study aimed to assess the usefulness of Metal Artifact Reduction (MAR) software in the reduction of metal artifacts, in comparison to iterative rec...

Coast contains an important environmental value which is subjected to a great pressure, hard to arrange with the intense economic activity that takes place. The sand coasts with low height above sea level are the most sensitive to this stress. It is due to the dynamic nature caused by their interaction with the other systems and the natural values they have. Llobregat river delta is a coastal l...

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The Cananéia-Iguape lagoon-estuarine system, where the Ilha Comprida barrier (IC) is located, one of most dynamic coastal areas on southeastern Brazilian coast. IC island a 63 km-long and it limited by Icapara inlet to north, Cananéia south. This system has been affected intense changes in its morphology since opening Valo Grande artificial channel 1852 A.D., connecting nearby Ribeira de Iguape...

BACKGROUND, AIM AND SCOPE Ria de Aveiro (Portugal) is a shallow coastal lagoon of high economic and ecological importance. Hardly any data on its chemical pollution by polar organic pollutants are available in literature. This study focused on the presence and sources of a series of phenolic endocrine-disrupting compounds (EDCs) in this area, including parabens, alkylphenolic compounds and bisp...

Municipal wastewaters are major sources of pollution for the aquatic biota. The purpose of this study was to determine the levels of some pharmaceutical products and the immunotoxic potential of a municipal wastewater aeration lagoon for the treatment of the domestic wastewaters of a small town with wastewater inputs from a 400-bed hospital complex. Endemic mussels were collected, caged and pla...

There is a need for treatment technologies that can eliminate environmental problems associated with anaerobic lagoons. These technologies must be able to capture nutrients, kill pathogens, and reduce emissions of ammonia and nuisance odors. To meet these needs, a full-scale wastewater treatment plant was installed as a demonstration project on one of three 4360-pig (Sus scrofa) production unit...

Resumo— Dado o enorme número de usuários envolvidos, a distribuição de TV será a aplicação que irá disparar a implantação do serviço multicast na Internet. Um serviço multicast é composto por protocolos de roteamento, que são os responsáveis pela criação da árvore de distribuição do tráfego. Portanto, determinar qual o protocolo é mais adequado à TV na Internet é fundamental. Neste trabalho foi...