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Selecting life: Scientists find new way to search for origin of life
11-09-2006 · EurekAlert!Over the last half century, researchers have found that mineral surfaces may have played critical roles activating molecules that would become essential ingredients to life. Identifying which biomolecule/ mineral surface pairs, however, has stumped scientists for years because of countless possible combinations. Now a team of researchers, led by Robert Hazen of the Carnegie Institution's Geophysical Laboratory, has developed new protocols and procedures for adapting DNA microarray technology to rapidly identify promising molecule/mineral pairs.
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Keywords: selecting, life, scientists, way, search, origin, scientist
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- Origins of life
11-17-2006 · EurekAlert!
The origin of life lies in unique ocean reefs, and Rosenstiel School scientists have developed an approach to help investigate them better. An article published in Geology this month reveals how Dr. Miriam Andres' stromatolite investigation -- the first of its kind -- has begun to "fingerprint" ancient microbial pathways, increasing the understanding of how these reef-like structures form and offering a new way to explore the origins of these living records.
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- Scientists discover novel way to remove iron from ferritin
11-02-2007 · EurekAlert!
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- Finding that 1-in-a-billion that could lead to disease
08-19-2007 · EurekAlert!
Errors in the genetic code can give rise to cancer and a host of other diseases, but finding these errors can be more difficult than looking for the proverbial needle in the haystack. Now, scientists at Johns Hopkins have uncovered how the tiny protein-machines in cells tasked to search for such potentially life-threatening genetic damage actually recognize DNA errors.
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- Smithsonian study concludes Caribbean extinctions occurred 2M years after apparent cause
03-12-2007 · EurekAlert!
Smithsonian scientists and colleagues report a new study that may shake up the way paleontologists think about how environmental change shapes life on Earth. The researchers summarized the environmental, ecological and evolutionary consequences for Caribbean shallow-water marine communities when the Isthmus of Panama was formed. They concluded that extinctions resulting when one ocean became two were delayed by 2 million years.
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- Comet probes reveal evidence of origin of life, scientists claim
08-14-2007 · EurekAlert!
New evidence about the interiors of comets suggests it is overwhelmingly likely that life began in space, accordingto a new paper by Cardiff University scientists.
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- Hot springs microbes hold key to dating sedimentary rocks, researchers say
01-22-2008 · EurekAlert!
Scientists studying microbial communities and the growth of sedimentary rock at Mammoth Hot Springs in Yellowstone National Park have made a surprising discovery about the geological record of life and the environment.Their discovery could affect how certain sequences of sedimentary rock are dated, and how scientists might search for evidence of life on other planets.
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03-23-2007 · EurekAlert!
Oral cancer is diagnosed in more than 30,000 individuals in the US annually, claiming 10,000 lives each year. Early detection remains the best way to ensure patient survival and quality of life. Today, during the 85th General Session of the International Association for Dental Research, scientists from the University of California-Irvine present two novel, non-invasive, ultra-fast imaging approaches to oral cancer detection, diagnostic screening and mapping.
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- Scientists look at those in evolutionary race who don’t make it 'out of the gate'
01-22-2008 · EurekAlert!
In the race of evolution, scientists until now have only looked at winners and losers. Now, they've come up with a way to look at the contenders who never made it out of the gate.It's the organisms that die early in life, before scientists can assess what they might bring to the reproduction game, and that have gone uncounted in the effort to quantify genetic fitness. This group has been dubbed the "invisible fraction."
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- Plants and stress -- key players on the thin line between life and death revealed
08-01-2007 · EurekAlert!
Scientists from VIB, associated with the K. U. Leuven, have revealed a mechanism demonstrating the ways in which plants deal with stress. The discovered control system has a remarkable way of orchestrating activity of hundreds of genes, forcing the plant into "safety mode." This may have negative impact on growth, but allows the plant to temporarily safeguard itself against stress conditions. These findings also may prove to be valuable in understanding disorders such as cancer and diabetes.
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- Life elsewhere in Solar System could be different from life as we know it
07-06-2007 · EurekAlert!
The search for life elsewhere in the solar system and beyond should include efforts to detect what scientists sometimes refer to as "weird" life -- that is, life with an alternative biochemistry to that of life on Earth -- says a new report from the National Research Council.
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