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Comment: Do it (Score 1) 491

by raktul (#30579736) Attached to: China Debuts the World's Fastest Train
This is why you need to ask the electric companies to build solar panels over top of their power lines and give them a big% of the power that they create.The extra power will be used to power the high speed trains with green energy. Its a nice investment since you could make a lot of money on cheap transportation.
Biotech

Prehistoric Gene Reawakened To Battle HIV 360

Posted by kdawson
from the learning-from-our-distant-cousins dept.
Linuss points out research published in PLoS Biology that demonstrates the reawakening of latent human cells' ability to manufacture an HIV defense. A group of scientists led by Nitya Venkataraman began with the knowledge that Old World monkeys have a built-in immunity to HIV: a protein that can prevent HIV from entering cell walls and starting an infection. They examined the human genome for any evidence of a latent gene that could manufacture such a protein, and found the capability in a stretch of what has been dismissively termed "junk DNA." "In this work, we reveal that, upon correction of the premature termination codon in theta-defensin pseudogenes, human myeloid cells produce cyclic, antiviral peptides (which we have termed 'retrocyclins'), indicating that the cells retain the intact machinery to make cyclic peptides. Furthermore, we exploited the ability of aminoglycoside antibiotics to read-through the premature termination codon within retrocyclin transcripts to produce functional peptides that are active against HIV-1. Given that the endogenous production of retrocyclins could also be restored in human cervicovaginal tissues, we propose that aminoglycoside-based topical microbicides might be useful in preventing sexual transmission of HIV-1."
Medicine

New HIV Strain Discovered 263

Posted by kdawson
from the evolution-in-action dept.
reporter and barnyjr were among the readers alerting us to the discovery of a new strain of the HIV virus, found in a woman from the west central African nation of Cameroon. "It differs from the three known strains of human immunodeficiency virus and appears to be closely related to a form of simian virus recently discovered in wild gorillas, researchers report in Monday's edition of the journal Nature Medicine. ... The most likely explanation for the new find is gorilla-to-human transmission, Plantier's team said. But... they cannot rule out the possibility that the new strain started in chimpanzees and moved into gorillas and then humans, or moved directly from chimpanzees to both gorillas and humans. ... Researchers said it could be circulating unnoticed in Cameroon or elsewhere. The virus's rapid replication indicates that it is adapted to human cells, the researchers reported."
Transportation

Nissan Unveils All-Electric LEAF 586

Posted by kdawson
from the made-right-here-in-the-U-S-of-A dept.
MojoRilla writes "In Japan, Nissan unveiled their all-electric LEAF (press release, and Flash site). Slated to launch in late 2010 in Japan, the US, and Europe, this car will have a 100-mile range, seats 5, has an advanced computer system with remote control by IPhone, and promises to be competitively priced. While this car's range won't work for everyone, it could be a game changer as a commuter car." Recharge time is 8 hours with a 200-volt power source, and "just under 30 minutes with a quick charger" (no further details given) to charge to 80% of capacity.

Comment: Two questions (Score 2, Interesting) 33

by raktul (#28911821) Attached to: How To Make Electronic Displays With Mood Ring Ink
What temperatures are needed to change the ink? Obviously if it needs to be really hot that is bad since it might burn the person holding it, while cooler temperatures can be affected by the atmosphere around the page causing problems. Would it make more sense to use a different material then paper to print the ink on to avoid accidental colour changes?

Gee, Toto, I don't think we're in Kansas anymore.

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