Reviews & Previews
Near the end of Ouellette’s new book — a personal journey exploring what shapes people’s sense of self — she pops a candy tablet of LSD and settles in for her first psychedelic experience. Ouellette had heard that once the drug wore off and the acid-induced wonderland slipped away, the “self” came barreling back.03/07/2014 - 09:32 Neuroscience
“I had to experience this firsthand,” she writes. “After all, it was ‘...
Reviews & Previews
The hottest thing in human evolution studies right now is DNA extracted from fossils of Neandertals and other long-gone populations. Pääbo, the dean of ancient-gene research, explains in his book how it all began when he bought a piece of calf liver at a supermarket in 1981.03/03/2014 - 18:23 Genetics
In those days, DNA had been successfully pulled only from living animals. Pääbo modified the methods to...
With mighty bursts of rehydration, bacterial spores offer a new source of renewable energy.
Bacillus spores quickly shrivel in dry times and bloat with a blast of humidity. The transitions, which take about half a second, pack a powerful punch that biophysicist Ozgur Sahin at Columbia University realized could translate to usable energy. By smearing spores onto a flat piece of rubber...
Of the 51 tons of antibiotics consumed every day in the United States, about 80 percent goes into animal production (above). The widespread use of antibiotics in livestock may be contributing to growing resistance to the drugs by bacteria such as Salmonella (below). In December, the U.S. Food and Drug Administration enacted a voluntary program phasing out antibiotics used to make livestock...
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Corals may whip up whirlpools to spin specks of food in and bits of waste out. Scientists had known that hairlike bristles, or cilia, on coral help sweep nutrients in, but the purpose of bristles lining the valleys between coral polyps had been more mysterious. Using video microscopy, MIT environmental engineer Vicente Fernandez and colleagues recorded two short clips...