A new semi-quantitative analytical method for mercury determination in gold prospecting areas, and 16 new local users, 5 in Itaituba-Brazil and 11 in ManadoIndonesia, were trained for using it as an alternative and low cost method for mercury determination in fish in August and September 2003. This experience demonstrated the spreading potential throughout those areas of such low-cost method an...

A PCR method suitable for the isolation of lipase genes directly from environmental DNA is described. The problems associated with the low levels of similarity between lipase genes were overcome by extensive analysis of conserved regions and careful primer design. Using this method, a lipase gene (oli-lipase) was isolated directly from environmental DNA. This lipase showed less than 20% similar...

– Magnetic signatures of urban structures. Understand water distribution in a megalopolis thanks to geophysics prospecting.

Dynamical systems are the paradigm for the representation of complex systems. The fixed encoding in a closed set of equations, however, contrasts with the openness of biogeochemical systems. Parameter identification is a major problem in biogeochemical systems and calibration of parameters converts models into ‘fitting machines’. Openness, self-modification, and historicity of biogeochemical sy...

Co-Investigators: John D. Aber, University of New Hampshire William R. Emanuel, University of Virginia Leonard A. Fisk, University of Michigan Changsheng Li, University of New Hampshire Jerry M. Melillo, Marine Biological Laboratory Bruce J. Peterson, Marine Biological Laboratory Barrett N. Rock, University of New Hampshire David L. Skole, University of New Hampshire Charles J. Vorosmarty, Univ...