Determining the bioaccumulation of 9 metals in aquatic invertebrates in mining areas

A new study has proposed an ecological threshold concentration of 9 metals for 10 taxa of aquatic macroinvertebrates from clean sites in the Nalón river basin (Asturias). This is the first step towards incorporating into river management plans quality criteria relating to the bioaccumulation of hazardous substances, as required by the EU.

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Anesthesia, surgery linked to decline in memory and thinking

In adults over 70, exposure to general anesthesia and surgery is associated with a subtle decline in memory and thinking skills, according to new research. The study analyzed nearly 2,000 people and found that exposure to anesthesia after age 70 was linked to long-term changes in brain function.

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Computer model predicts how fracturing metallic glass releases energy at the atomic level

Metallic glasses are an exciting research target, but the difficulties associated with predicting how much energy these materials release when they fracture is slowing down development of metallic glass-based products. Recently, researchers developed a way of simulating to the atomic level how metallic glasses behave as they fracture. This modeling technique could improve computer-aided materials design and help researchers determine the properties of metallic glasses.

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A social tool for evaluating the environmental impact of residential buildings

for the first time, an open-source computing tool can, simply and intuitively, calculate the CO2 emissions in each phase of a building project, in order to obtain a global picture of its carbon footprint from its conception and to help decide every variable in the construction process.

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