There's a kind of rice growing in some test plots in the Philippines that's unlike any rice ever seen before. It's yellow. Its backers call it "golden rice." It's been genetically modified so that it contains beta-carotene, the source of vitamin A.
Scientists say that understanding how the cocktail party effect works could help people who have trouble deciphering sounds in a noisy environment. Guests make it look easy at a Dolce and Gabbana Lounge party in London in 2010.
Scientists are beginning to understand how people tune in to a single voice in a crowded, noisy room.
This ability, known as the "cocktail party effect," appears to rely on areas of the brain that have completely filtered out unwanted sounds, researchers report in the journal Neuron. So when a person decides to focus on a particular speaker, other speakers "have no representation in those [brain] areas," says Elana Zion Golumbic of Columbia University.
Benjamin Franklin said the only certain things are death and taxes. Let's add a third thing: Interviews. At many points, starting with school admissions or a new job, you're going to sit down before someone else and answer their questions.
Which is what NPR's Shankar Vedantam is about to do with us because he's got some new research relating to this topic. Hi, Shankar.
SHANKAR VEDANTAM, BYLINE: Hi, Steve.
INSKEEP: And let's begin this interview. What's the new research about?
A new study of Central African forest elephants has found their numbers down by 62 percent between 2002 and 2011. The study comes as governments and conservationists meet in Thailand to amend the Convention on International Trade in Endangered Species.
Now, to some alarming findings about wildlife in Africa. A 10-year survey looked at the population of forest elephants and found that it fell 62 percent in that time. The study is the largest of its kind, spanning five countries: Cameroon, Central African Republic, Democratic Republic of Congo, its neighbor the Republic of Congo and Gabon. The Wildlife Conservation Society, which helped organize the effort, is saying that extinction looms for the forest elephant because of poaching.
An iceberg in or just outside the Ilulissat fjord, which likely calved from Jakobshavn Isbrae, the fastest glacier in western Greenland, in May 2012. Polar ice sheets are now melting three times faster than in the 1990s.
Credit Ian Joughin / AP
A graphic excerpted from <a href="http://www.pnas.org/content/early/2013/02/27/1214212110.full.pdf+html">the original PNAS study</a>.
Originally published on Tue March 5, 2013 12:22 pm
Climate change will make commercial shipping possible from North America to Russia or Asia over the North Pole by the middle of the century, a new study says.
Two researchers at the University of California ran seven different climate models simulating two classes of vessels to see if they could make a relatively ice-free passage through the Arctic Ocean. In each case, the sea routes are sufficiently clear after 2049, they say.
This image represents a chunk, or "cube," of brain. Each different color represents a different neuron, and the goal of the EyeWire game is to figure out how these tangled neurons connect to each other. Players look at a slice from this cube and try to identify the boundaries of each cell. It isn't easy, and it takes practice. You can try it for yourself at eyewire.org.
An image from Foldit's Puzzle 48.
Daniel Berger, a researcher at MIT, traced these neurons using the EyeWire game.
In the EyeWire game, participants identify different neurons by coloring in their shapes using a Web-based 3-D interface.
People can get pretty addicted to computer games. By some estimates, residents of planet Earth spend 3 billion hours per week playing them. Now some scientists are hoping to make use of all that human capital and harness it for a good cause.
Right now I'm at the novice level of a game called EyeWire, trying to color in a nerve cell in a cartoon drawing of a slice of tissue. EyeWire is designed to solve a real science problem — it aims to chart the billions of nerve connections in the brain.
A child born with HIV has been cured of the virus, researchers say. Audie Cornish talks to Richard Knox about what was different about this child among the millions who've been treated in the past and what it means for the prospect of an HIV cure in adults.
If they can block the Keystone XL pipeline, they can keep Canada from developing more of its dirty tar sands oil. It takes a lot of energy to get it out of the ground and turn it into gasoline, so it has a bigger greenhouse gas footprint than conventional oil.
Scientists believe a little girl born with HIV has been cured of the infection.
She's the first child and only the second person in the world known to have been cured since the virus touched off a global pandemic nearly 32 years ago.
Doctors aren't releasing the child's name, but we know she was born in Mississippi and is now 2 1/2 years old — and healthy. Scientists presented details of the case Sunday at a scientific conference in Atlanta.