There's Life After Radiation for Brain Cells - 08/12/2013. There's Life After Radiation for Brain Cells. Scientists have long believed that healthy brain cells, once damaged by radiation designed to kill brain tumors, cannot regenerate.
Pew Research Center. The Pew Research Center is a nonpartisan American fact tank, which is based in Washington, D.C. It provides information on social issues, public opinion, and demographic trends shaping the United States and the world.
As part of a year-long study of polarization, the Pew Research Center has conducted the largest political survey in its history â a poll of more than 10,000 adults between January and March of this year. It finds that Republicans and Democrats are further apart ideologically than at any point in recent history.