Because mosquitoes carry diseases like malaria and dengue fever, and irritate us, humans do a lot to avoid them. In most places people have to fend for themselves against the pests by sleeping under mosquito nets or using repellant. A number of new repellant formulas have hit the market in recent years, many with questionable efficacy. Researchers at New Mexico State University decided to compare the effectiveness of different repellants and perfumes, according to a study published recently in the Journal of Insect Science.
Typing in Braille is tricky, requiring clunky and expensive dedicated devices--some costing as much as US$6,000--with limited functionality beyond their primary design purpose. But a team of researchers at Stanford University in California, including an undergrad on loan from New Mexico State University, have created a touchscreen interface that brings the ability to write in Braille to tablet PCs.
