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Tiny Scrubbers: Nanoparticles Purify Water

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Askwsar Hilonga, Ph.D., a chemical engineer and public health scientist in Tanzania, grew up dealing with waterborne diseases such as cholera that made him ill. According to the World Health Organization, he has used his scientific expertise and local knowledge to develop a purification system based on nanomaterials. While the filter is still under study, stations have been set up throughout Tanzania, mostly managed by women, to help those that otherwise would not have safe drinking water.
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Global Brief: Natural Thinking Spending Time in Nature Increases Cognitive Performance
More of our time is spent indoors than ever before. One of the ways by which nature may improve cognitive function (i.e. the acquisition of and goal-oriented use of knowledge) is by improving memory formation and recall, specifically that of short-term or working memory, and goal-oriented or directed attention; the kind that requires focused effort. By comparing and contrasting 13 studies, a team of researchers has shed light on this complex interaction in research published in Frontiers in Psychology. The studies used the backwards digit span task, which requires participants to invert a series of numbers and repeat them back. All demonstrated significantly improved cognition in nature as compared to urban environments. The benefits of studies like this are two-fold: not only are we learning more about how the brain interacts with its environment, but also how to leverage this interaction to lead healthier, more productive and happier lives.
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