Brightsurf Science News & Current Events

November 20, 2011
Severity of heart attack is dependent on the time of day
The size of a heart attack and subsequent left-ventricular function are significantly different based on the time of day onset of ischemia, according to a first of its kind study in humans, published online Nov.

Scripps Research team finds a weak spot on deadly ebolavirus
Scientists from the Scripps Research Institute and the US Army's Medical Research Institute of Infectious Diseases have isolated and analyzed an antibody that neutralizes Sudan virus, a major species of ebolavirus and one of the most dangerous human pathogens.

Effects of climate change to further degrade fisheries resources: UBC researchers
A new study led by University of British Columbia researchers reveals how the effect of climate change can further impact the economic viability of current fisheries practices.

Evolutionary practices in schools can benefit at-risk students
Helping at-risk high schoolers succeed in the classroom has always been difficult.

Carbon cycling was much smaller during last ice age than in today's climate
A reconstruction of plants' productivity and the amount of carbon stored in the ocean and terrestrial biosphere at the last ice age is published today in Nature Geoscience.

Novel ALS drug slows symptom progression, reduces mortality in phase 2 trial
Results of a phase 2 clinical trial indicate that treatment with dexpramipexole -- a novel drug believed to prevent dysfunction of mitochondria, the subcellular structures that provide most of a cell's energy -- appears to slow symptom progression in the neurodegenerative disease amyotrophic lateral sclerosis (ALS).

Limited options for meeting 2°C warming target, warn climate change experts
We will only achieve the target of limiting global warming to within two degrees of pre-industial temperatures if carbon dioxide emissions begin to fall within the next two decades and eventually decrease to zero.

Nerve cells key to making sense of our senses
The human brain is bombarded with a cacophony of information from the eyes, ears, nose, mouth and skin.

Recipient's immune system governs stem cell regeneration
A new University of Southern California-led study, published in Nature Medicine, describes how different types of immune system T-cells alternately discourage and encourage stem cells to regrow bone and tissue, bringing into sharp focus the importance of the transplant recipient's immune system in stem cell regeneration.

Huskies lend insight into mercury risk
Researchers have highlighted the serious health risks associated with the diets of indigenous people by linking the accumulation of mercury in their primary food source to a decrease in the power of antioxidants.

Climate change effect on release of CO2 from peat far greater than assumed
Writing in Nature Geosciences, Dr Nathalie Fenner and Professor Chris Freeman of Bangor University explain how the drought causes an increase in the rate of release of CO2 for possibly as long as a decade.

Molecular barcodes - identification of 16 new species of Caenorhabditis
Caenorhabditis are usually thought of as soil nematodes, happily living in compost heaps.

Study finds sex a significant predictor of happiness among married seniors
The more often older married individuals engage in sexual activity, the more likely they are to be happy with both their lives and marriages, according to new research presented in Boston at the Gerontological Society of America's (GSA) 64th Annual Scientific Meeting.

UGA scientists invent long-lasting, near infrared-emitting material
Materials that emit visible light after being exposed to sunlight are commonplace and can be found in everything from emergency signage to glow-in-the-dark stickers.

A failing sense of smell can be reversed
In a new study scientists at NYU Langone Medical Center have shown that the sense of smell can be improved.

Discovery of new muscle repair gene
An international team of researchers from Leeds, London and Berlin has discovered more about the function of muscle stem cells, thanks to next-generation DNA sequencing techniques.

U-M researchers find genetic rearrangements driving 5 to 7 percent of breast cancers
Researchers at the University of Michigan Comprehensive Cancer Center have discovered two cancer-spurring gene rearrangements that may trigger 5 to 7 percent of all breast cancers.

Scripps research scientists develop brand new class of small molecules through innovative chemistry
Inspired by natural products, scientists on the Florida campus of the Scripps Research Institute have created a new class of small molecules with the potential to serve as a rich foundation for drug discovery.
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