Humans
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We summarize the week's scientific breakthroughs every Thursday.
- Health & Medicine
Malaria vaccine yields protection
In its first large-scale test, the experimental immunization cuts risk of disease in about half of the children getting it and limits severe infections, researchers report.
By Nathan Seppa - Health & Medicine
Teen brains’ growing pains
Testing captures substantial changes in some youths’ IQs and gray matter.
- Life
Stopping a real-life ‘Contagion’
An antibody treatment fends off the lethal Hendra virus in monkeys and may also work against the equally dangerous Nipah virus.
By Nathan Seppa - Humans
Plague bug not so fierce after all
DNA analysis shows bacterium was fairly ordinary but thrived in pestilent conditions of medieval Europe.
By Nick Bascom - Health & Medicine
A mind for optimism
When predicting the risk of unfortunate events, people heed positive news better than ill tidings.
- Humans
Stone Age paint shop unearthed
The discovery of tools for making a substance possibly used in body decoration suggests humans could invent and plan by 100,000 years ago.
By Bruce Bower - Humans
Columbus’ arrival linked to carbon dioxide drop
The depopulation of the Americas due to introduced European diseases may have spurred Europe's Little Ice Age.
By Devin Powell - Health & Medicine
Vaccine makes headway against trachoma
An experimental immunization might someday aid public health efforts to counter a blinding disease.
By Nathan Seppa - Health & Medicine
Reviving A Tired Heart
With a bit of encouragement, the life-giving muscle may renew itself.
By Laura Beil - Humans
Really bad year for Arctic sea ice
On October 4, the National Snow and Ice Data Center posted information on its website indicating that the summer melt of sea ice in the Arctic, this year, approached — but did not quite match — the record set four years ago. A team of European scientists now concludes NSIDC underestimated those Arctic losses.
By Janet Raloff - Humans
Inca takeovers not usually hostile
Skeletal evidence suggests that war was not the answer for Inca imperialists.
By Bruce Bower - Humans
Study recalibrates trees’ carbon uptake
Photosynthesis appears to be somewhat speedier than conventional wisdom had suggested, a new study finds. If true, this suggests computer projections are at risk of overestimating the potential for trees to sop up carbon dioxide, a major greenhouse gas.
By Janet Raloff