Estudo de demanda de informação no setor de geociências e tecnologia mineral

Objetivando oferecer insumos para a criação do Sistema Nacional de lnformação em Geociências e Tecnologia Mineral realizou-se um estudo sobre a demanda de informação nesse setor baseado em uma amostra representativa de todos os segmentos a ele ligados e localizados em todos os estados brasileiros. Questionários foram enviados a diversas instituições e a análise das respostas permitiu avaliar e concluir sobre dados referentes às empresas/instituições do setor; à formação acadêmica dos respondentes e suas principais atividades: aos recursos de informação disponíveis e à demanda e uso de informação. Obteve-se uma visão global e sistemática das características dos usuários (individuais e institucionais) e das necessidades de informação no setor e apontam-se também várias ações e recomendações para estudos posteriores. Study on information demand in the area ofGeosciences and Mineral Technology With the aim to offer inputs for the establishment of the National System of Information on Geosciences and Mineral Technology a survey was carried out on information needs based on a representative sample of users located in all Brazilian states. Questionnaires were sent to several institutions and the analysis of answers allowed to evaluate and conclude about data referring to the institution; to the respondents academic background and their main activities; to the available information resources and the needs anduse of information. A coherent and comprehensiveview of the users characteristics and the information needs in the sector was reached. Several actions and recommendations are made for further studies

Elementos de construcción a partir de residuos de construcción y demolición en Bogotá

Trabajo de investigaciónEl sector de la construcción en la ciudad de Bogotá, ha crecido constantemente al igual que los Residuos de construcción y Demolición (RCD) que esta industria genera, debido a esta problemática se realiza una contextualización de los RCD que se generan en la ciudad de Bogotá, identificando su posible utilización como materia prima de nuevos elementos para esta industria por lo tanto se investiga en bases de datos que materiales se producen en la actualidad con los RCD y se presenta un análisis PESTEL identificando algunas variables macro económicas que pueden tener influencia en el aprovechamiento y comercialización de los materiales producidos a partir de RCD.INTRODUCCIÓN 1. GENERALIDADES 2. CARACTERIZACIÓN DE LOS RESIDUOS DE CONSTRUCCIÓN Y DEMOLICIÓN QUE SE GENERAN EN LA CIUDAD DE BOGOTÁ 3. MATERIALES QUE SE PRODUCEN A PARTIR DE RESIDUOS DE CONSTRUCCIÓN Y DEMOLICIÓN Y SUS COMPONENTES 4. DETERMINAR LA APLICABILIDAD DE LOS RCD PARA PRODUCTOS QUE SE PUEDEN REALIZAR DADA LA EXISTENCIA EN EL MERCADO 5. CONCLUSIONES 6. RECOMENDACIONES BIBLIOGRAFÍAPregradoIngeniero Civi

Assessment of impacts on ecosystem services provided by geodiversity in highly urbanised areas: a case study of the Taubaté Basin, Brazil

This work presents a method to identify, to evaluate and to quantify the losses of the offer of ecosystem services provided by geodiversity, using as a case study the Taubaté Basin region, a highly urbanized portion of southeastern São Paulo State, Brazil. Our method considers not only the qualitative analysis of the abiotic as- pects, but also the historical and cultural context, in which the geodiversity elements are crucial for local economy development. The method is based on: i) Qualitative evaluation and definition of six Essential Geodiversity Variables (EGVs), used as the basis for the identification of 53 ecosystem services distributed into four functions: regulating, supporting, provisioning, and cultural; ii) Definition of land use categories based on two land use maps elaborated in order to compare the transformation occurred in the region between 1986 and 2016; iii) Quantification and evaluation of the impacts on the offer of ecosystem services caused by land use transformations occurred in region in a 30–year gap. The results showed that anthropogenic action is the main factor that alter the availability of local services, with emphasis on the supply of water, soils and mineral resources, and its potentially influence on the quality of life of certain species. We reinforce the view that public policies on land management and planning should consider the ecosystem assessment, as it provides evidence to propose actions to mitigate impacts and for environmental compensation, favoring the sustainable use of re- sources by society.The authors would like to thank CAPES for the Academic Mobility Program PDSE Scholarship / Process Nr. 88,881.135227 / 2016–01 and for the PhD research scholarship in Brazil awarded to the first author

Length-weight relationships for freshwater fish species from humid forest enclaves at the Brazilian semiarid

We report the length-weight relationships (LWR) for 11 fish species inhabiting headwater streams in the Araripe and Ibiapaba plateaus, Brazilian semiarid. Values of r2, a and b ranged respectively from.953 to.998, 0.010 to 0.043 and 2.81 to 3.69. Our reports on LWR are pioneer in humid forest enclaves at the Caatinga biome. Such enclaves of forest can be a checkpoint to climate change, but are under strong human pressure and remain under low investigation. © 2017 Blackwell Verlag GmbH