News tagged with organic systems
Astrobiologists discover 'sweet spots' for the formation of complex organic molecules in the galaxy
(PhysOrg.com) -- Scientists within the New York Center for Astrobiology at Rensselaer Polytechnic Institute have compiled years of research to help locate areas in outer space that have extreme potential for ...
Nov 02, 2011 |
5 / 5 (6) |
1
|
Self or non-self: Social amoeba rely on genetic 'lock and key' to identify kin
The ability to identify self and non-self enables cells in more sophisticated animals to ward off invading infections, but it is critical to even simpler organisms such as the social amoebae Dictyostelium discoideum.
Jun 23, 2011 |
not rated yet |
0
|
Meteorite holds clues to organic chemistry of the early Earth: study
(PhysOrg.com) -- Carbonaceous chondrites are a type of organic-rich meteorite that contain samples of the materials that took part in the creation of our planets nearly 4.6 billion years ago, including materials ...
Space & Earth / Space Exploration
Jun 09, 2011 |
4.7 / 5 (6) |
1
|
Formaldehyde: Poison could have set the stage for the origins of life
(PhysOrg.com) -- Formaldehyde, a poison and a common molecule throughout the universe, is likely the source of the solar system's organic carbon solids—abundant in both comets and asteroids. Scientists ...
Apr 04, 2011 |
4.5 / 5 (4) |
0
|
Scientists construct synthetic proteins that sustain life
(PhysOrg.com) -- In a groundbreaking achievement that could help scientists "build" new biological systems, Princeton University scientists have constructed for the first time artificial proteins that enable ...
Jan 06, 2011 |
4.9 / 5 (27) |
29
|
Water discovered on second asteroid, may be even more common
Water ice on asteroids may be more common than expected, according to a new study that will be presented today at the world's largest gathering of planetary scientists.
Space & Earth / Space Exploration
Oct 07, 2010 |
4.7 / 5 (13) |
2
|
Study challenges long-held assumption about competition in disturbed ecosystems
Hurricanes, wildfires and influxes of pollutants create disturbances that can put ecological systems under extreme stress. Ecologists had believed that at times like these, competition between species becomes ...
Jun 28, 2010 |
not rated yet |
0
|
Scientists Explain Why Computers Crash But We Don't
(PhysOrg.com) -- Nature and software engineers face similar design challenges in creating control systems. The different solutions they employ help explain why living organisms tend to malfunction less than ...
May 03, 2010 |
4.7 / 5 (67) |
26
|
Scientists Reproduce a Building Block of Life in Laboratory
(PhysOrg.com) -- NASA scientists studying the origin of life have reproduced uracil, a key component of our hereditary material, in the laboratory.
Nov 06, 2009 |
4.9 / 5 (28) |
0
Multiple sclerosis successfully reversed in animals
(PhysOrg.com) -- A new experimental treatment for multiple sclerosis (MS) completely reverses the devastating autoimmune disorder in mice, and might work exactly the same way in humans, say researchers at ...
Medicine & Health / Medical research
Aug 11, 2009 |
4.9 / 5 (61) |
17
Unifying The Animate And The Inanimate Designs Of Nature
(PhysOrg.com) -- Living beings and inanimate phenomena may have more in common than previously thought.
Apr 28, 2009 |
4 / 5 (10) |
4
New study finds titan cells protect Cryptococcus
Giant cells called "titan cells" protect the fungus Cryptococcus neoformans during infection, according to two University of Minnesota researchers. Kirsten Nielsen, Ph.D., an assistant professor in the department of microb ...
May 28, 2012 |
4.3 / 5 (3) |
0
|
A cell's first steps: Building a model to explain how cells grow
A collaboration between Lehigh University physicists and University of Miami biologists addresses an important fundamental question in basic cell biology: How do living cells figure out when and where to grow?
May 18, 2012 |
5 / 5 (2) |
0
|
Biologists predict extinction for organisms with poor quality genes
Evolutionary biologists at the University of Toronto have found that individuals with low-quality genes may produce offspring with even more inferior chromosomes, possibly leading to the extinction of certain ...
Apr 16, 2012 |
3 / 5 (2) |
3
|
Water, water everywhere – but is it essential to life?
Proteins are large organic molecules that are vital to every living thing, allowing us to convert food into energy, supply oxygen to our blood and muscles, and drive our immune systems. Since proteins evolved in a water-rich ...
Apr 13, 2012 |
4 / 5 (6) |
7
|
