In this month's issue of Nature
, Haruko Obokata and colleagues have made a breakthrough in the field of stem cell research, where they describe a unique cellular reprogramming phenomenon in which skin and blood cells could be converted into stem cells without the need to physically manipulate the nucleus or over-express reprogramming genes. Rather, the researchers subjected them to stress "almost to the point of death", by exposing them to various events including trauma, low oxygen levels and acidic environments. One of these "stressful" situations was simply to bathe the cells in a weak acid solution for about 30 minutes. Within days, the scientists found the cells had not only survived but had also recovered by naturally reverting into a state similar to that of an embryonic stem cell.
The research suggests human cells could in future be reprogrammed by the same technique, offering a simpler way to replace damaged cells or grow new organs for sick and injured people. [more inside]
posted by kisch mokusch
on Jan 30, 2014 -
If you follow the usual crop of technology news sites, you will have read yesterday morning that Google had apparently acquired a little-known WiFi hotspot company for $400 million. This story spread with the help of the most popular (and most reputable) sites, like TechCrunch
, The Verge
, The Next Web
, and others. Only one small detail: the story wasn't actually true. [more inside]
posted by nickheer
on Nov 27, 2012 -
Fresh on the heels of Lockheed Martin's delivery
of the first production F-35 to the USAF, you might be wondering how much it actually costs. It depends on who you ask.
Blackfive takes a crack at it
, prompting a rather snippy response
from Bill Sweetman over at Ares. Throw in additional commentary
and a rebuttal
, and head down the rabbit hole into the wonderful world of defense acquisition.
posted by kjars
on May 17, 2011 -
HP shareholders vote to acquire Compaq... or not?
Stop me if you've heard this one before: One side has already declared victory while the other won't concede defeat until all the votes are counted. The margin appears to be less than one half of one percent, and a manual count is in the works.
posted by jjg
on Mar 19, 2002 -