Brightsurf Science News & Current Events

December 26, 2006
Alternative materials for radioactive materials containment
Nuclear operations have left behind a wide variety of radioactive waste that needs long-term containment and safe disposal.

New study links western wildfires to Atlantic Ocean surface temperatures
Western US wildfires are likely to increase in the coming decades, according to a new tree-ring study led by the University of Comahue in Argentina and involving the University of Colorado at Boulder that links episodic fire outbreaks in the past five centuries with periods of warming sea surface temperatures in the North Atlantic.

Women on osteoporosis drug can discontinue use with no risk
A long-term study of the most widely used osteoporosis drug has found that many women can discontinue the drug after five years without increasing their fracture risk for as long as five more years.

Pet owners are sick more often and exercise less than other working-aged people
A common perception is that pet owner is a young person who is full of action, exercises a lot, and actively plays with a pet, particularly with a dog.

News tips from the Journal of Neuroscience
This issue includes the following articles: A supersensitive phosphorylation site on Kí2.1; Development without death; Orientation tuning in macaque somatosensory cortex; and Adenosine A2A receptors and L-DOPA-induced dyskinesias.

Acid suppression medication linked with increased risk of hip fracture
Use of the drugs proton pump inhibitors (PPIs) for the treatment of acid-related diseases such as gastro esophageal reflux disease (GERD) is associated with a greater risk of hip fracture, according to a study in the December 27 issue of JAMA.

A reason why video games are hard to give up
Kids and adults will stay glued to video games this holiday season because the fun of playing actually is rooted in fulfilling their basic psychological needs.

MIT creates 3-D scaffold for growing stem cells
Stem cells grew, multiplied and differentiated into brain cells on a new three-dimensional scaffold of tiny protein fragments designed to be more like a living body than any other cell culture system.

Incidence of stroke decreases over last 50 years
The incidence of stroke in the US over the past 50 years has declined, although the severity of stroke has not, according to a study in the December 27 issue of JAMA.

Women may be able to 'take break' from osteoporosis drug without losing benefit
Most postmenopausal women who took the osteoporosis drug alendronate for five years and then stopped did not have an increased risk for nonvertebral fractures in the next five years, suggesting the medication has a lasting effect, according to a study in the December 27 issue of JAMA.

The mathematics of cloaking
The theorists who first created the mathematics that describe the behavior of the recently announced

Polarstern's biggest fish catch in 24 years of research in Antarctic waters
Five tons of marbled Antarctic cod (Notothenia rossii), now that was surely a big surprise to scientists and crew alike considering that previous and subsequent hauls barely ever reaped such plentiful harvests.

Water Treatment and Reuse -- II
Water treatment and reuse are very important issues for both developed and developing countries.

Study identifies glucose 'sensor' that plays dual role in glucose metabolism and fat synthesis
In a new study, scientists at the Scripps Research Institute have described for the first time a glucose-activated sensor that acts as a switch to decrease production of endogenous glucose in the liver, and increase conversion of glucose to fat for storage in adipose tissue.

How does a zebrafish grow a new tail?
New information on how zebrafish regrow their tailfins, including the discovery of a gene that produces a protein that inhibits regeneration, may hold promise for encouraging regeneration in warm blooded animals, including people.
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