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Trace metal risk assessment and environmental quality standard definition require realistic models that quantify metal exposure and accumulation by biota. In the present study we propose a novel trait-based approach to predict whole body concentrations of metals in aquatic invertebrates from concentrations measured in different environmental compartments. Field data from a large riverine floodplain...
An image was taken by the XMM telescope to better understand galaxy clusters. We model the data as a high dimensional Poisson inverse problem and develop a lasso type estimator with a composite penalty (with two thresholds) to handle both estimation of the gas density in the cluster and detection of point sources.
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