Humans
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We summarize the week's scientific breakthroughs every Thursday.
- Archaeology
Ancient hominids may have been seafarers
Researchers have discovered hundreds of African-style stone hand axes on Crete, suggesting that sea-going hominids reached the island hundreds of thousands of years ago en route to Europe.
By Bruce Bower - Health & Medicine
New test could discern serious condition early after bone marrow transplant
Protein level in blood reveals graft-versus-host disease, may indicate severity of this complication
By Nathan Seppa - Health & Medicine
Celebrex combats skin cancer in vulnerable group
Anti-inflammatory drug limits number of tumors in patients with hereditary condition
By Nathan Seppa - Humans
Pet tarantulas can pose a hairy threat
A new medical case report reaffirms why even largely non-venomous tarantulas can make questionable pets. Some respond to stress by expelling a cloud of barbed hairs that can lodge in especially vulnerable tissues. Like your eyeball.
By Janet Raloff - Earth
Danish sustainability: From coats to undies
The United Nations climate change conference may be over, but Denmark’s interest in climate-protection issues isn’t. Case in point: an exhibit at the Danish Design Center. Across the street from Copenhagen’s famed Tivoli Gardens, local fashion-design students are showcasing their idea of another type of greens – fashion-forward clothes that are kind to Mother Nature.
By Janet Raloff - Health & Medicine
Texting and driving don’t mix, just as suspected
Sending or receiving messages proves even worse than cell phone calls for young adults on simulators.
By Nathan Seppa - Life
Lupus not identical in twins
Differences in DNA methylation may account for why one sibling gets the autoimmune disease while the other stays healthy.
- Chemistry
Climate deal reached, importance debated
“Finally, we sealed the deal. And it is a real deal,” said United Nations Secretary General Ban ki-Moon this morning at an 11:15 press briefing. He was referring to a new climate accord – one aimed at reducing global greenhouse-gas emissions and setting up a green trust fund for mitigation and adaptation programs in the world’s poorest countries, ones that are already being hammered by a changing climate.
By Janet Raloff - Climate
Climate: Deal or no deal?
We’ve got a climate accord, President Barack Obama said at a parting press conference tonight (at about 11 to 11:30 p.m. local time, before leaving Denmark). Not so fast, argue a number of other negotiating blocs...like the G77.
By Janet Raloff - Health & Medicine
2009 Science News of the Year: Nutrition
Natural vanilla extract comes from pods (shown), but most vanillin is synthesized in the lab. Credit: De-Kay/istockphoto That yeast smells good Yeast has long been pressed into service for making beer and bread. Now the fungus has been tapped for a loftier flavor: vanillin, vanilla’s dominant compound (SN: 5/23/09, p. 9). Natural vanilla comes from […]
By Science News - Health & Medicine
2009 Science News of the Year: Body & Brain
Numbers of passengers arriving from Mexico in March and April 2008 show which cities would have been most vulnerable to H1N1 transmission. Credit : The New England Journal of Medicine ©2009 H1N1 strikes and spreads Like the years 1957 and 1968, 2009 will be known as a pandemic flu year. The springtime eruption of a […]
By Science News - Humans
2009 Science News of the Year: Humans
An artist’s illustration shows how a female Ardipithecus may have looked. An analysis of Ardi’s bones, uncovered from 1992 through 1997, was released this year. Credit: J.H. Matternes Ardi puts new spin on hominid evolution A 4.4-million-year-old partial female skeleton discovered in Africa, along with fossils from at least 36 of her comrades, provide the […]
By Science News