Basis Science, the San Francisco-based company that makes the Basis Band wristworn activity tracker and heart monitor, has raised $11.5 million in its second round of funding. The round, led by the Mayfield Fund, is the company's first public funding round since it raised $9 million in 2011, bringing the company's total funding to $20.5 million. Previous investors DCM and Norwest Venture Partners...
