News
- Health & Medicine
Gene Variant Tied to Human Aging
Variants of a gene linked to mouse aging are more prevalent in elderly people than in newborns, suggesting that the gene influences human aging or specific age-related illnesses.
- Health & Medicine
Cloning’s ups and downs
Dolly, the world's first cloned mammal, has developed arthritis, and two biotech firms have turned to cloning in their attempt to create pigs with organs that human bodies won't reject when transplanted.
- Health & Medicine
Cancer fighter reveals a dark side
Overactivity of a tumor-suppressing gene shortens the lifespan of mice.
- Anthropology
Stone Age signs of complexity
Ancient engravings found in South Africa support the theory that humans began to think and behave in symbolic ways a surprisingly long time ago.
- Anthropology
The gene that came to stay
A gene thought by some scientists to foster a bold, novelty-seeking personality, as well as attention-deficit hyperactivity (ADHD), apparently spread substantially in human populations over roughly the past 40,000 years.
- Health & Medicine
Viruses stop antibiotic-resistant bacteria
Bacteriophages, viruses that destroy bacteria, can protect mice from bacteria that are impervious to antibiotics.
- Chemistry
New structure reveals catalysts’ details
Researchers have created a new compound that contains a palladium atom bonded in a unique way to six silicon atoms.
- Earth
Earth’s inner core could include silicon
Laboratory experiments investigating the crystal structure of iron-silicon alloys at high temperatures and pressures may yield new insights into the mineral composition of Earth's core.
- Animals
Hanging around Mom’s web helps everybody
For nearly grown spiderlings, lingering in their mother's web instead of setting off on their own turns out to be a boon for the mom, as well as themselves.
- Health & Medicine
Genes make potential target in lymph cancer
Scientists looking for DNA variations in a cancer called diffuse large B-cell lymphoma have found that excess activity in certain genes may indicate whether the disease will be fatal.
- Astronomy
Milky Way galaxy: Cloaked in a hot shroud?
Spacecraft observations indicate that a vast, unseen halo of hot gas envelopes our home galaxy, the Milky Way, and could literally be brushing up against its nearest neighbors.
- Humans
Record science budget evaded proposed cuts
Congress and the Bush administration have now agreed on unprecedented rises in funding for research and development programs.
