- News Home
17 April 2014 12:48 pm ,
Vol. 344 ,
Officials last week revealed that the U.S. contribution to ITER could cost $3.9 billion by 2034—roughly four times the...
An experimental hepatitis B drug that looked safe in animal trials tragically killed five of 15 patients in 1993. Now,...
Using the two high-quality genomes that exist for Neandertals and Denisovans, researchers find clues to gene activity...
A new report from the Intergovernmental Panel on Climate Change (IPCC) concludes that humanity has done little to slow...
Astronomers have discovered an Earth-sized planet in the habitable zone of a red dwarf—a star cooler than the sun—500...
Three years ago, Jennifer Francis of Rutgers University proposed that a warming Arctic was altering the behavior of the...
- 17 April 2014 12:48 pm , Vol. 344 , #6181
- About Us
Top Stories: Bleeding Brains, Wily Wolves, and Fighting Flu
31 May 2013 4:45 pm
Microbleeding in Brain May Be Behind Senior Moments
With age comes wisdom—and cognitive decline. The culprit, scientists say, is stiffening arteries that cause microbleeding in the brain. A stiffer aorta can increase blood pressure in the brain, creating the tiny bleeds linked to worsening cognitive function. In fact, researchers found that blood pressure and aorta stiffness were sensitive predictors of a person's cognitive abilities. As experiments continue, researchers will look into whether treatments that keep arteries soft and flexible might help slow our inevitable mental decline.
Who's (Socially) Smarter: The Dog or the Wolf?
The obvious winner in the social intelligence game seems like it has to be dogs—they're not called man's best friend for nothing. But it turns out that although dogs are attuned to human cues, they're not very good at learning from each other. Wolves, on the other hand, are much more socially savvy when interacting with their own kind. Researchers theorize that dogs might have traded their canine social smarts for a better relationship with humans.
Gene Therapy … Against the Flu?
When a pandemic influenza virus surfaces, researchers are in a race against time to make an appropriate vaccine. Now, scientists have developed an entirely new approach to flu protection. The new therapy involves squirting the genes for protective antibodies straight up people's noses, getting their cells to produce antibodies exactly where flu viruses try to establish infection. The catch? So far, the antibodies stick around for just 3 months, which is too short a time for effective influenza protection.
A Better Predictor of Autism
When it comes to predicting whether toddlers with autism will face severe impairment later in life, parents have had only one choice: Wait and see. Now, researchers have discovered distinct brain activity that can predict how well kids with disorders on the autism spectrum will fare long-term. The discovery illuminates the link between language development and social ability and should help doctors develop better early treatments for the disorder.
New Agreement Casts Spotlight on Efforts to Inventory Black Carbon
Scientists agree that black carbon plays an important but so far poorly understood role in climate change and air pollution. Now, an expert U.N. panel has come up with a technical road map to guide the first global effort to create a standardized emissions inventory of tiny soot particles. Countries will start reporting in 2015, and the new data should help scientists better understand black carbon's effect on the world's climate.