Zimbabwe opposition leader Morgan Tsvangirai says he will leave the Dutch embassy in Harare over the next 48 hours.

Sunbathing tree frogs may hold the key to understanding how a deadly fungus is wiping out amphibians around the world.

I Don't Believe in Imaginary Property writes "Members of this community may want to venture out of the basement more often, because Dr. Harald Dobnig and his team have found that vitamin D deficiency leads to increased mortality. These results still hold when they take into account such factors as exercise and heart disease. Low vitamin D status has 'other significant negative effects in terms of incidence of cancer, stroke, sudden cardiac death and death of heart failure,' Dr. Dobnig said. The evidence of ill effects from low vitamin D 'is just becoming overwhelming at this point.' Vitamin D3 is usually produced by exposure to the UV-B in sunlight, but in high latitudes, especially in the fall and winter, insufficient UV-B gets through the atmosphere to produce enough vitamin D3, even with hours of exposure. The researchers are recommending that people at risk for deficiency take 800 IU of vitamin D3 daily. Just don't go overboard — as a fat-soluble vitamin, D3 is more capable of causing adverse effects at unnaturally high dosages. The human body tops out at producing about 10,000 IU per day."

Read more of this story at Slashdot.

Israeli forces kill two Palestinians, including a militant, in the West Bank city of Nablus, Palestinian sources say.

Some general anaesthetics could actually worsen the pain following surgery, say scientists.

Boy George's US summer tour is in doubt after authorities refuse him a visa, citing looming legal issues overseas.

Andy Murray will begin his Wimbledon campaign on Tuesday, along with Rafael Nadal and Venus Williams.

A top aide to John McCain apologises for saying a terror attack on US soil would help his presidential campaign.

Premature babies undergoing medical procedures may be in pain even if there is no obvious sign, a study suggests.

British energy firm BG Group makes a $13.15bn hostile bid for Australian power company Origin Energy.

Officials from more than 40 countries meet in Berlin to earmark funds for the Palestinian police and justice system.

A senior FBI officer says more arrests will be made as part of its probe into mortgage fraud and the credit crunch.

snydeq writes "The Linux kernel development community has released a statement emphasizing the need for open source drivers. The statement, signed by 135 developers, is aimed at preventing future vendors from following the closed source path. One holdout cited is Nvidia. The Linux Foundation has also released a statement in support: 'The Linux Foundation recommends that hardware manufacturers provide open source kernel modules. The open source nature of Linux is intrinsic to its success. We encourage manufacturers to work with the kernel community to provide open source kernel modules in order to enable their users and themselves to take advantage of the considerable benefits that Linux makes possible.'"

Read more of this story at Slashdot.

Taleban insurgents in Afghanistan took more than $100m from the opium trade in 2007, a top UN official tells the BBC.

A Japanese warship is to arrive in southern China for a five-day port call, the first such visit since World War II.

Divers found bodies but no survivors as they began searching a capsized ferry in the Philippines, navy personnel say.

The UN Security Council unanimously condemns the violence against Zimbabwe's main opposition party.

grrlscientist writes "In response to what appears to be a growing problem of scientific misconduct, a group of people at the Institute of Medical Science at University of Toronto in Canada wrote a scientist's version of the Hippocratic oath. This oath (which is cited in the story) was recited by all graduate students in the biological sciences at the beginning of the 2007-2008 academic year." This blogger argues that merely reciting an oath is not going to help much when "...the corruption in 'science' is systemic. It is due to corporate science being run according to a business model instead of in accordance to an educational paradigm. It is due to unrestrained corporate greed combined with a tremendous disparity in power and income..."

Read more of this story at Slashdot.

Xeth writes "I'm a consultant with DARPA, and I'm working on an initiative to push the boundaries of neuromorphic computing (i.e. artificial intelligence). The project is designed to advance ideas all fronts, including measuring and understanding biological brains, creating AI systems, and investigating the fundamental nature of intelligence. I'm conducting a wide search of these fields, but I wanted to know if any in this community know of neat projects along those lines that I might overlook. Maybe you're working on a project like that and want to talk it up? No promises (seriously), but interesting work will be brought to the attention of the project manager I'm working with. If you want to start up a dialog, send me an email, and we'll see where it goes. I'll also be reading the comments for the story."

Read more of this story at Slashdot.

A certificate scheme that shows which firms have made genuine carbon cuts is launched by the UK's Carbon Trust.