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Full-Text Articles in Medicine and Health Sciences
Reappraisal Of Uranium-Series Isotope Data In Kamchatka Lavas: Implications For Continental Arc Magma Genesis, Anthony Dosseto, Simon Turner
Reappraisal Of Uranium-Series Isotope Data In Kamchatka Lavas: Implications For Continental Arc Magma Genesis, Anthony Dosseto, Simon Turner
Faculty of Science, Medicine and Health - Papers: part A
Uranium-series isotopes can be used to determine constraints on the timescale of slab dehydration and melt production at subduction zones. However, interpretations of U–Th–Ra data suggest very different timescales of slab dehydration. Here, we present new U–Th–Ra data from Kamchatka along with a number of alternative models for production of radioactive disequilibrium. Variations in (226Ra/230Th) and (231Pa/235U) activity ratios are best explained by crystal fractionation with host rock assimilation for a duration of less than c. 6000 years. The association of the largest 226Ra excesses with high Sr/Th in the most primitive lavas suggests that Ra–Th fractionation is controlled by …
Cross Sectional Survey Of Human-Bat Interaction In Australia: Public Health Implications, Beverley J. Paterson, Michelle T. Butler, Keith Eastwood, Patrick M. Cashman, Alison Jones, David N. Durrheim
Cross Sectional Survey Of Human-Bat Interaction In Australia: Public Health Implications, Beverley J. Paterson, Michelle T. Butler, Keith Eastwood, Patrick M. Cashman, Alison Jones, David N. Durrheim
Faculty of Science, Medicine and Health - Papers: part A
Background Flying foxes (megachiroptera) and insectivorous microbats (microchiroptera) are the known reservoirs for a range of recently emerged, highly pathogenic viruses. In Australia there is public health concern relating to bats' role as reservoirs of Australian Bat Lyssavirus (ABLV), which has clinical features identical to classical rabies. Three deaths from ABLV have occurred in Australia. A survey was conducted to determine the frequency of bat exposures amongst adults in Australia's most populous state, New South Wales; explore reasons for handling bats; examine reported practices upon encountering injured or trapped bats or experiencing bat bites or scratches; and investigate knowledge of …
Trace Elements And Metal Pollution In Aerosols At An Alpine Site, New Zealand: Sources, Concentrations And Implications, Samuel K. Marx, Karen S. Lavin, Kimberly J. Hageman, Balz S. Kamber, Tadhg O'Loingsigh, Grant H. Mctainsh
Trace Elements And Metal Pollution In Aerosols At An Alpine Site, New Zealand: Sources, Concentrations And Implications, Samuel K. Marx, Karen S. Lavin, Kimberly J. Hageman, Balz S. Kamber, Tadhg O'Loingsigh, Grant H. Mctainsh
Faculty of Science, Medicine and Health - Papers: part A
Atmospheric aerosol samples were collected at a remote site in New Zealand's Southern Alps. Collected samples were found to be a mixture of New Zealand and Australian sourced sediment, using their trace element signatures. Aerosol concentrations and the relative contribution of different sources was found to be a function of specific air-mass trajectories influencing the study site, dust entrainment rates in source areas and rainfall. Results show that Australian dust is a major source of particulate matter in New Zealand, particularly in remote alpine locations; however, locally derived dust is also important. Metal pollutants, including Pb, Cu and Sn, were …