3D geovisualisation techniques applied in spatial data mining

The increase in the number of spatial data collected has motivated the development of geovisualisation techniques, aiming to provide an important resource to support the extraction of knowledge and decision making. One of these techniques are 3D graphs, which provides a dynamic and flexible increase of the results analysis obtained by the spatial data mining algorithms, principally when there are incidences of georeferenced objects in a same local. This work presented as an original contribution the potentialisation of visual resources in a computational environment of spatial data mining and, afterwards, the efficiency of these techniques is demonstrated with the use of a real database. The application has shown to be very interesting in interpreting obtained results, such as patterns that occurred in a same locality and to provide support for activities which could be done as from the visualisation of results. © 2013 Springer-Verlag.

Informe del Taller de Trabajo sobre Cooperación Técnica y Económica para el Sector Minero-Metalúrgico de América Latina = Report of the Workshop on Technical and Economic Co-operation for the Latin American Mining and Metallurgical Sector

Contiene la asistencia, organizacion de los trabajos y resumen de los debates sobre los temas: 1) posibilidades de incrementar el comercio internacional de minerales y metales de America Latina; 2) politicas de desarrollo del sector minero; y 3) posibilidades de complementacion regional e interregional en la industria minero- metalurgica y metalmecanica.

Role of the public sector and transnational corporations in the development of mining in Latin America

Includes bibliography

Propuestas de proyectos de cooperación horizontal para el desarrollo del sector minero-metalúrgico de América Latina: listado preliminar = Proposals for horizontal co-operation projects for the development of the mining and metallurgical sector of Latin America: preliminary list

Presenta proyectos de cooperacion horizontal para el desarrollo del sector minero-metalurgico propuestos por Argentina, Bolivia, Colombia, Ecuador, Guatemala, Panama, Paraguay, Peru y Republica Dominicana, los cuales han sido clasificados en proyectos de caracter regional o subregional y en proyectos de caracter multinacional.

Evolución y perspectivas del sector minero en América Latina: versión preliminar = Evolution of, and prospects for, the mining sector in Latin America: preliminary version

Incluye Bibliografía

Demanda de maquinaria y equipo de la minería metalífera en algunos países de América Latina = Demand for machinery and equipment by the metal mining industry in some countries of Latin America

Incluye Bibliografía

Opciones de integración vertical de la minería en América Latina = Options of vertical integration of mining in Latin America

Incluye Bibliografía

Fomento de las inversiones y financiamiento de la minería en América Latina = Investment promotion and financing of mining in Latin America

Incluye Bibliografía

Technical assistance and technology transfer in the Latin American mining and metallurgical sector

Includes bibliography

The metal exchanges and their incidence in the development of mining in Latin America and the Caribbean

Includes bibliography

Evolución y perspectivas del sector minero en América Latina: versión preliminar = Evolution of, and prospects for, the mining sector in Latin America: preliminary version

Incluye Bibliografía

The structure of bird communities in areas revegetated after mining in southern Brazil

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Cumulative influences of a small city and former mining activities on the sediment quality of a subtropical estuarine protected area

This study aimed to evaluate the sediment quality in the estuarine protected area known as Canan,ia-Iguape-Peruibe (CIP-PA), located on the southeastern coast of Brazil. The study was designed considering possible negative effects induced by the city of Canan,ia on the sediment quality of surrounding areas. This evaluation was performed using chemical and ecotoxicological analyses. Sediments were predominantly sandy, with low CaCO3 contents. Amounts of organic matter varied, but higher contents occurred closer to the city, as well as did Fe and Total Recoverable Oils and Greases (TROGs) concentrations. Contamination by Cd and Cu was revealed in some samples, while concentrations of Zn were considered low. Chronic toxicity was detected in all tested sediments and acute toxicity occurred only in sediments collected near the city. The principal component analysis (PCA) revealed an association among Cd, Cu, Fe, TROG, fines, organic matter, CaCO3, and chronic toxicity, whereas acute toxicity was found to be associated with Zn and mud. However, because Zn levels were low, acute toxicity was likely due to a contaminant that was not measured. Results show that there is a broad area within the CIP-PA that is under the influence of mining activities (chronic toxicity, moderate contamination by metals), whereas poorer conditions occur closer to Canan,ia (acute toxicity); thus, the urban area seems to constitute a relevant source of contaminants for the estuarine complex. These results show that contamination is already capable of producing risks for the local aquatic biota, which suggests that the CIP-PA effectiveness in protecting estuarine biota may be threatened.