Brightsurf Science News & Current Events

August 05, 2007
Disabling a sensory organ prompts female mice to act like male mice
By short-circuiting the sensory organ that detects the chemical cues mice use to attract mates, a team of Howard Hughes Medical Institute researchers has prompted female mice to behave like male mice in the throes of courtship.

See what you're spewing as you speed along
In the future, drivers may only have to glance at the dashboard to see the pollution spewing out of their vehicle's exhausts.

Defects in critical gene lead to accelerated lung tumor growth
Scientists at the University of North Carolina at Chapel Hill School of Medicine and Harvard Medical School have found that a mutated tumor suppressor gene, LKB1, may result in lung tumors that are more aggressive and more likely to spread throughout the body.

Study identifies source of fever
With the finding that fever is produced by the action of a hormone on a specific site in the brain, scientists have answered a key question as to how this adaptive function helps to protect the body during bacterial infection and other types of illness.

UCSD researchers discover cause of rosacea
A team of researchers, led by Richard L. Gallo, M.D., Ph.D., professor of medicine and chief of the Division of Dermatology at the University of California, San Diego School of Medicine and the dermatology section of the Veterans Affairs San Diego Healthcare System, has determined that it is not one, but a combination of two abnormal factors, that result in rosacea.

Why nectar-feeding bats need a 'power drink' to fly
Nectar-feeding bats burn sugar faster than any other mammal on Earth -- and three times faster than even top-class athletes -- ecologists have discovered.

A sensory organ, not the brain, differentiates male and female behavior in some mammals
Biologists at Harvard University have found that the epicenter of sex-specific behavior in many species may be a small sensory organ found in the noses of all terrestrial vertebrates except higher primates.

Discovery of novel nerve cell modulator offers potential for mood disorders, epilepsy treatments
The discovery of a novel molecular switch that powerfully modulates nerve cell activity offers the potential for new mood disorder and epilepsy treatments, University of California, Irvine researchers report.

Human knowledge is based upon directed connectivity between brain areas
Which brain processes enable humans to rapidly access their personal knowledge?

Sunspot abundance linked to heavy rains in East Africa
A new study reveals correlations between plentiful sunspots and periods of heavy rain in East Africa.

Multicenter study nets new lung tumor-suppressor gene
Collaborating scientists in Boston and North Carolina have found that a particular gene can block key steps of the lung cancer process in mice.

Exercise and mental stimulation bothboost mouse memory late in life
Physical exercise is known to be good for the aging brain, but what about mental stimulation?

Census of Marine Life historians detail collapse of bluefin tuna population off northern Europe
Census of Marine Life researchers have chronicled the decimation of North Atlantic bluefin tuna populations in the first half of 20th century.

MIT study: Maturity brings richer memories
MIT neuroscientists exploring how memory formation differs between children and adults have found that although the two groups have much in common, maturity brings richer memories.

Happier hospitals means healthier patients
The National Inquiry into Management and Medicine looked at hospitals across the UK, focusing on the often troubled relationships between doctors and NHS managers.
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