Lower Mortality in Moderate Drinkers VS Abstainers Result...

RESULTS: Without adjustment, meta-analysis of all 87 included studies replicated the classic J-shaped curve, with low-volume drinkers (1.3-24.9 g ethanol per day) having reduced mortality risk (RR = 0.86, 95% CI [0.83, 0.90]). Occasional drinkers (<1.3 g per day) had similar mortality risk (RR = 0.84, 95% CI [0.79, 0.89]), and former drinkers had elevated risk (RR = 1.22, 95% CI [1.14, 1.31]). After adjustment for abstainer biases and quality-related study characteristics, no significant r...

 College Tuition Becoming Unnaffordable

[Report from the National Center for Public Policy and Higher Education] found, published college tuition and fees increased 439 percent from 1982 to 2007 while median family income rose 147 percent. Student borrowing has more than doubled in the last decade, and students from lower-income families, on average, get smaller grants from the colleges they attend than students from more affluent families. [...] “The middle class has been financing it through debt,” he said. “The scenario has be...

 Popular Science Shuts Down Comments

Comments can be bad for science. That's why, here at PopularScience.com, we're shutting them off. [...] ...even a fractious minority wields enough power to skew a reader's perception of a story, recent research suggests. In one study led by University of Wisconsin-Madison professor Dominique Brossard, 1,183 Americans read a fake blog post on nanotechnology and revealed in survey questions how they felt about the subject (are they wary of the benefits or supportive?). Then, through a randoml...

 Public Policy Shouldn't Bet on Science

You ask whether, given a choice, I would put more resources into space or AI. My answer is that either choice would be stupid. Politicians always want to make such choices too soon, because they imagine they can pick winners. Usually they pick losers. The only way to improve the chances for finding winners is to keep all the choices open and try them all. That is particularly true for space and AI, which are not really competing with each other. They are done by different kinds of people in d...