World Topics

Mar 30, 2014

'Designer chromosome' created

Scientists have built the first synthetic chromosome for a complex-celled organism after a seven-year effort, a step toward man-made genomes that some hailed on Friday but others viewed warily. The artificial chromosome was inserted into a brewer’s yeast cell, which continued to function as ...

Mar 29, 2014

Two Britons catch TB from pet cat

In the first transmission of its kind, England’s public health agency says two people have caught tuberculosis from a cat. Public Health England said in a report Thursday that tuberculosis samples taken from the cat and two people were indistinguishable and that the feline ...

If you want to fake pain, don't do it around this computer

Mar 29, 2014

If you want to fake pain, don't do it around this computer

In the ever-expanding contest between artificial intelligence and the ordinary human mind, you can chalk up another one for the computer. Scientists have developed a computer system with sophisticated pattern recognition abilities that performed much better than humans in differentiating between people experiencing genuine ...

Experts warn over Nigerian 'Viagra' drinks

Mar 28, 2014

Experts warn over Nigerian 'Viagra' drinks

Nike Ajibade and three of her colleagues sit on a Lagos sidewalk with small plastic bottles of liquids tucked inside weather-beaten plastic buckets. The hidden bottles of so-called Viagra drinks sell for about $2 and are much sought after for their supposed aphrodisiac qualities. ...

New CO₂ capture tech to aid climate

Mar 28, 2014

New CO₂ capture tech to aid climate

A little-known technology that may be able to take the equivalent of China’s greenhouse gas emissions out of the carbon cycle could be the radical policy shift needed to slow climate change this century, a draft U.N. report shows. Using the technology, power plants ...

Costs, uncertainty hamper Ebola vaccine

Mar 28, 2014

Costs, uncertainty hamper Ebola vaccine

Almost 40 years after the Ebola virus was identified in humans by scientists in a microbiology laboratory in Belgium, pharmaceutical researchers have yet to develop an effective drug or vaccine to fight it. Part of the problem is that the deadly virus is rare ...

Mar 28, 2014

Distant hunter of comets to awaken

A fridge-size robot lab hurtling through the solar system aboard a European probe is about to wake from hibernation and prepare for the first landing by a spacecraft on a comet. The delicate operation, starting Friday, marks the next phase in the European Space ...

Autism begins in the womb: study

Mar 27, 2014

Autism begins in the womb: study

Autism may begin when certain brain cells fail to properly mature within the womb, according to new research by U.S. scientists. The scientists, studying postmortem brain tissue taken from children, found that those diagnosed with autism lacked key genetic markers for brain cells that ...