(Helmholtz Association of German Research Centres) Reactive oxygen compounds, including the well-known "free radicals," have an oxidation effect and, thereby, damage cells. However, at low levels, they also regulate key life processes. Scientists at the German Cancer Research Center have developed a highly sensitive biological measuring system for determining the oxidation state of living cells in real time.
Barack Obama said his plan to end the Iraq war was unchanged and he was puzzled by the sharp reaction to his statement that he might "refine" his timetable for withdrawing U.S. combat troops.
AFP - The United States military wanted to test deadly nerve gases on Australian troops in a remote area of far north Queensland in the 1960s but Canberra refused, a report said Sunday.
