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Colin Cherry was the first to study the "cocktail party effect" which is the human ability to follow a single conversation in the midst of other conversations and background noises (read more)
The guinea worm is one of the best historically documented human parasites, even noted in the ancient Ebers Papyrus. Once widely spread through tropical Africa and Asia, the incidence of the disease has gone from an estimate of more than 3 million cases a year in 1986 to only 542 reported cases in 2012. It may become the second human disease to be eradicated, after smallpox, and the first parasitic disease eradicated. And this has been accomplished not with vaccines or medical treatment, but largely through education and behavior change, along with treatment of contaminated water with larvicides and provision of clean water.
Marie Antoinette is remembered for her legendary excesses, and for her death: she was executed by guillotine in 1793 for the crime of treason. In recent years some modern historians have attempted to exculpate her image; many of her excesses were common practices among other European royalty of that era; additionally, she displayed tremendous loyalty and courage during the dark and tempestuous days of the French Revolution.