Uncategorized
- Math
Mathematician answers Supreme Court plea
New, fair method for dividing states into congressional districts could reduce political squabbles.
- Health & Medicine
B vitamins, folic acid may protect vision
Vitamin B and folic acid supplements might defend against macular degeneration, the leading cause of blindness in the elderly.
By Nathan Seppa - Health & Medicine
Sunshine vitamin diminishes risk of colds, flu
A study of nearly 19,000 adults shows that people with low levels of vitamin D are more likely to develop colds, flu and pneumonia.
By Janet Raloff - Health & Medicine
Breast cancer drug gets boost
Natural protein could make the most aggressive breast cancers vulnerable tamoxifen, and may even prevent the cancer’s spread.
- Health & Medicine
Taking age stereotypes to heart
A long-term investigation indicates that young and middle-aged adults who hold negative attitudes about the elderly are more likely to have heart ailments and strokes later in life.
By Bruce Bower - Space
Satellite collision: brief update on Hubble and debris
In an unprecedented collision, two large satellites crashed into each other in low-Earth orbit on February 10. The effect on a planned Hubble repair mission remains unclear.
By Ron Cowen - Space
New window on the high-energy universe
New telescope finds strange behavior in gamma-ray bursts, and also documents the highest energy burst known.
By Ron Cowen - Tech
Catalyst knocks out a smog maker
Unique system could help truckers meet new emissions standards.
By Janet Raloff - Plants
Animals’ jaundice pigment found in plants
Bilirubin, a compound well known in animals, gives seed fuzz its intense orange.
By Susan Milius - Physics
Physics could unite plankton
Oceanic version of wind shear can disorient marine microorganisms and trigger formation of thin, densely populated layers.
By Sid Perkins - Life
Anti-aging: A little stress may keep cells youthful
The aging-related Sirtuin 1 protein also regulates heat shock response, a mechanism cells use to combat stress.
- Health & Medicine
Possible genetic flag for brain cancer
Mutations in IDH genes show up in many brain cancers, but the genes’ role remains unclear.
By Nathan Seppa