The population Research Institute, a Virginia-based group linked to anti-abortion organisations in America, last week welcomed the news that the world's population was set to hit 7 billion this month.
Using estimates from the Italian data, the authors of the new study created a computer simulation of how American athletes 14 to 22 years old would be affected by screening.
If we had rock samples to study, we'd know whether these small craters were formed by impacts during the final stages of planetary formation, or if they resulted from later meteor showers.
Falling marriage rates and falling divorce rates could be two sides of the same coin, says Kathleen Kiernan, a professor of social policy at York University.
Closer examination revealed the two hull sections had split exactly where the ship broke in two, making them a possible key to the mystery of the ship's final moments.
However the researchers can? T be absolutely sure that the two signals they measured were dark matter and not some other particle, which they call background.