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AT&T Rolling Out Its 4G Network to 12 New Markets

AT&T is taking another major step in the expansion of its 4G LTE network. On Monday, the carrier announced it will be rolling out LTE technology to a dozen new markets in the U.S., on the heels of the unveiling of the new, hot-selling iPad with LTE capability. The target markets are Naples, Fla.; St. Louis; New Orleans and Baton Rouge, La.; Bryan/College Station in Texas; Cleveland, Akron, and...

Correcting human mitochondrial mutations

Researchers have identified, for the first time, a generic way to correct mutations in human mitochondrial DNA by targeting corrective RNAs, a finding with implications for treating a host of mitochondrial diseases.

Dish closes on 2 purchases key to broadband plans

(AP) -- Satellite TV provider Dish Network Corp. has completed its purchase of two satellite operators whose licenses it hopes to use to offer broadband access that can help it compete better with cable TV and phone companies.

High-tech companies grapple with rising costs in China

The price to make Silicon Valley gadgets and computers in China - the assembly line for the global tech industry - is going up, forcing tech companies to rejigger supply chains to contain costs and to consider charging more for electronic devices.

Mathematical methods help predict movement of oil and ash following environmental disasters

When oil started gushing into the Gulf of Mexico in late April 2010, friends asked George Haller whether he was tracking its movement. That's because the McGill engineering professor has been working for years on ways to better understand patterns in the seemingly chaotic motion of oceans and air. Meanwhile, colleagues of Josefina Olascoaga in Miami were asking the geophysicist a similar question....

Modeling the miniscule: High-resolution design of nanoscale biomolecules

(PhysOrg.com) -- A key element of both biotechnology and nanotechnology is – perhaps unsurprisingly – computational modeling. Frequently, in silico nanostructure design and simulation precedes actual experimentation. Moreover, the ability to use modeling to predict biomolecular structure lays the foundation for the subsequent design of biomolecules. Historically, the problem has been...

Most experienced US spacewalker retires

A NASA astronaut who spent more hours walking in space than any other American and also set a record for the longest spaceflight mission has retired, the US space agency said Monday.

Why Pooh Bear Loves Honey, But Tigger Doesn't

Cats will ignore your sugary treats, but will literally jump onto the counter at the chance to scarf down some meaty goodness. The behavior stems from a missing sweet-taste receptor on their tongues, and now researchers have found some of their carnivore cousins in the wild, including sea lions and hyenas, also lack the taste for sweetness.