sábado, 18 de junio de 2011

Ciencia, salud


SCIENTIST AT WORK BLOG
Zachary Baldwin.

Fish With Sensitive Hearing

Scientists in Madagascar look for a species of Ptychochromis that has only been collected once before, and these fish have never been examined alive.
Opinion
DOT EARTH BLOG

More on Sunspots and Sushi Choices

A deeper look at debates over sushi and sunspots.
Science Columns
OBSERVATORY
The water spider weaves a silk bubble, known as a diving bell.

The Diving Bell and the Underwater Spider

Water spiders can safely stay underwater for a day or more at a time, longer than previously thought.
OBSERVATORY

Tracing of Rice Genomes Reveals Cross-Breeding

Two rice subspecies appear to have been independently bred, but they also share each other’s stronger traits, suggesting farmers exchanged their strains of rice repeatedly over the years.
OBSERVATORY
A cell, shown in black and white, emits green light that, with the help of mirrors, can act as a laser.

Scientists Create Laser With Mirrors and a Cell

The world’s first living laser produces a green fluorescent protein that is then channeled into a beam with the help of two mirrors.
Q & A

As Old as Dirt

The age of dirt depends on where you look and how deep you dig, according to one geochemist.
From Opinion
EDITORIAL

Bias and the Beholder

In a study of brain volume, intelligence and race, there may have been a prejudice, all right. But, if so, a surprising one.
Podcast: Science Times
Science Times Podcast
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This week: Your brain on drugs, underwater spiders, and sex and social media.
Health Columns
WELL

Digital Dalliance: Easy to Do and Easy to Get Caught

As online flirtation enters the mainstream, therapists are debating whether it facilitates infidelity.
PERSONAL HEALTH

Marching Through Life With Parkinson’s

Parkinson’s patients are pursuing whatever it takes to remain as healthy and functional as possible.
REALLY?

The Claim: A Sunscreen Chemical Can Have Toxic Side Effects

The chemical oxybenzone is a concern for some.

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