Calcium Is Initial Trigger in Our Immune Response to Healing
Posted on February 14, 2013 at 06:19:40 pm
For the first time scientists studying the cellular processes underlying the body's response to healing have revealed how a flash of calcium is the very first step in repairing damaged tissue.
Deep Space Missions Using Shielded Ion Beams?
Posted on February 13, 2013 at 03:34:09 pm
Electric rocket engines known as Hall thrusters, which use a super high-velocity stream of ions to propel a spacecraft in space, have been used successfully onboard many missions for half a century
Combustible Gases Power Leaping Machines
Posted on February 13, 2013 at 03:29:03 pm
They can already stand, walk, wriggle under obstacles, and change colors. Now researchers are adding a new skill to the soft robot arsenal: jumping
A War Without End, With Earth's Carbon Cycle Held in the Balance
Posted on February 13, 2013 at 03:25:10 pm
The greatest battle in Earth's history has been going on for hundreds of millions of years -- it isn't over yet -- and until now no one knew it existed, scientists reported Feb. 13 in the journal Nature.
Rare Explosion Made Galaxy's Youngest Black Hole
Posted on February 13, 2013 at 03:14:05 pm
New data from NASA's Chandra X-ray Observatory suggest a highly distorted supernova remnant may contain the most recent black hole formed in the Milky Way galaxy
Cell Circuits Remember Their History
Posted on February 12, 2013 at 07:08:43 pm
MIT engineers have created genetic circuits in bacterial cells that not only perform logic functions, but also remember the results, which are encoded in the cell's DNA and passed on for dozens of generations
Time Machine to Reconstruct Ancient Languages
Posted on February 12, 2013 at 07:04:00 pm
Ancient languages hold a treasure trove of information about the culture, politics and commerce of millennia past. Yet, reconstructing them to reveal clues into human history can require decades of painstaking work
TB Infection Rates Set to 'Turn Clock Back to 1930s'
Posted on February 12, 2013 at 09:54:20 am
During the 1930s, dedicated sanitaria and invasive surgery were commonly prescribed for those with the infection -- usually caused by Mycobacterium tuberculosis, which the editors describe as "the most successful human pathogen of all time."
Carbon Sponge Could Soak Up Coal Emissions
Posted on February 12, 2013 at 09:48:52 am
Emissions from coal power stations could be drastically reduced by a new, energy-efficient material that adsorbs large amounts of carbon dioxide, then releases it when exposed to sunlight
One-2 Punch Against Bacteria and Cancer
Posted on February 11, 2013 at 10:55:22 pm
Cancer researchers from Rice University suggest that a new human-made drug that's already proven effective at killing cancer and drug-resistant bacteria could best deliver its knockout blow when used in combination with drugs made from naturally occurring