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.
Pew Research Center has used panels on a number of occasions and now has its own nationally representative survey panel known as the American Trends Panel. Panels have several advantages over alternative methods of collecting survey data.