Mathematicians Open a New Front on an Ancient Number Problem

Mathematicians Open a New Front on an Ancient Number Problem

He delved into the literature, coming across a 1974 paper by Carl Pomerance, a mathematician now at Dartmouth College, which proved that any OPN must have at least seven distinct prime factors.“Seeing that progress could be made on this problem gave me hope, in my naiveté, that maybe I could do something,” Nielsen said.

How DNA Testing at the US-Mexico Border Will Actually Work

How DNA Testing at the US-Mexico Border Will Actually Work

Megan Molteni covers biotechnology, medicine, and genetic privacy for WIRED.DHS officials say the pilot is just a small-scale evaluation to see if the technology can help root out cases of criminal fraud, including human trafficking and “child recycling.” Last month, former DHS Secretary Kirstjen Nielsen told a congressional committee that the agency had discovered multiple incidences of young people being passed around, or “recycled,” to help migrants gain illegal entry.

FDA Cracks Down on E-Cigarettes to Curb Teen-Vaping 'Epidemic'

FDA Cracks Down on E-Cigarettes to Curb Teen-Vaping 'Epidemic'

Now, recent data, like a report from the Centers for Disease Control and Prevention showing that 2.1 million middle- and high-school students used e-cigarettes in 2017, is prompting the agency to rethink its position.“The FDA won’t tolerate a whole generation of young people becoming addicted to nicotine as a tradeoff for enabling adults to have unfettered access to these same products,” he said.Gottlieb’s offensive seems primarily aimed at Juul, the most popular of the e-cigarettes, with an estimated 70 percent share of the retail market according to Nielsen data.