Become a fan of Slashdot on Facebook

 


Forgot your password?
Close
typodupeerror
Biotech

Scientists Make Artificial Protein Mimic Blood 94

Posted by timothy from the this-is-cool-stuff dept.
Al writes "Researchers at the University of Pennsylvania have created a protein that can carry and deliver oxygen — a useful step towards developing artificial blood. This would avoid the problems involved with donor blood — contamination, limited storage, and short supply — and lead to easier and faster blood transfusions on the battlefield and in trauma cases. The Penn researchers used three amino acids to make a four-helix columned protein structure put a smaller structure, called a heme, inside it. The heme is a large flat molecule that has an iron atom at its center, which oxygen binds to. The researchers also made the protein structure flexible, so that it can open to receive the oxygen and close again without letting any water in. They did this by linking together the helical columns with loops to restrict their motions, giving the final structure a candelabra shape."
Space

Cold War Standoff Over ISS Toilet 417

Posted by timothy from the can't-even-agree-on-a-name dept.
Hugh Pickens writes "The International Space Station, once a place where astronauts would share food and facilities, is said to be embroiled in a Cold War-like stand-off after a Russian cosmonaut complained he is no longer allowed to use a US toilet or the US gym machine. Gennady Padalka, a veteran Russian cosmonaut, says that space officials from Russia, the United States and other countries now require cosmonauts and astronauts to eat their own food and follow stringent rules on access to other facilities, including lavatories. Padalka, who will be the station's next commander, says the arguments date back to 2003, when Russia started charging other space agencies for the resources used by their astronauts and other partners in space station responded in kind. 'Cosmonauts are above the ongoing squabble, no matter what officials decide,' says Padalka. 'We are grown-up, well-educated and good-mannered people and can use our own brains to create normal relationship. It's politicians and bureaucrats who can't reach agreement, not us, cosmonauts and astronauts.' While sharing food in the past helped the crew feel like a team, the new rules oblige Russian cosmonauts and US astronauts to eat their own food. 'They also recommend us to only use national toilets,' says Padalka. 'What is going on has an adverse effect on our work.'"

Feed Schneier: DHS Reality Show (schneier.com)

From feed by bsfeed
On ABC: Every day the men and women of the Department of Homeland Security patrol more than 100,000 miles of America's borders. This territory includes airports, seaports, land borders, international mail centers, the open seas, mountains, deserts and even cyberspace. Now viewers will get an unprecedented look at the work of these men and women while they use the newest...
Media

Submission + - New Contest Looks for Best "I'm Linux" Vid (linuxfoundation.org)

Submitted by LinuxScribe
LinuxScribe writes: From Apple's ubiquitous "I'm a Mac" to Jerry Seinfeld to Microsoft's "I'm a PC" retort, operating system commercials have been flooding the airways. Except one OS has been notably absent--Linux. Now the Linux Foundation is holding a video contest to rectify this absence on their new video site. The winner gets a trip to Tokyo and some serious geek cred.
Programming

Submission + - Hardware is Cheap, Programmers are Expensive (magheap.com)

Submitted by Sportsqs
Sportsqs writes: Given the rapid advance of Moore's Law, when does it make sense to throw hardware at a programming problem? As a general rule, I'd say almost always.
Consider the average programmer salary here in the US:
You probably have several of these programmer guys or gals on staff. I can't speak to how much your servers may cost, or how many of them you may need. Or, maybe you don't need any — perhaps all your code executes on your users' hardware, which is an entirely different scenario. Obviously, situations vary. But even the most rudimentary math will tell you that it'd take a massive hardware outlay to equal the yearly costs of even a modest five person programming team.
Businesses

Submission + - Abit to Close Its Doors Forever on Dec 31, 2008 (xbitlabs.com) 1

Submitted by ki1obyte
ki1obyte writes: Earlier this year, Abit, once leading-edge maker of computer mainboards and other components, was slated to shut down motherboard production by the end of 2008 and focus on consumer electronics devices. X-bit labs reports that Abit will cease to exist entirely starting the first of January, 2009, as the owner of the brand — Universal Scientific Industrial — is in the process of restructuring and cutting down the costs.

Slashdot Top Deals

"Mr. Watson, come here, I want you." -- Alexander Graham Bell

Close