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3,585 results
3,585 results for: assessments
- Humans
Pottery cooked from the start
Japanese sites yield late Stone Age evidence of people heating fish in ceramic vessels.
- Life
New bird flu claims more victims
H7N9 influenza spreads to Beijing, may come from poultry and pigeons.
- Earth
Early Earth’s chlorine blown away by giant impacts
Low levels of chlorine on planet's surface have long puzzled scientists.
- Health & Medicine
HIV vaccine trial stopped
Shots-plus-booster strategy deemed ineffective in preventing infection.
- Animals
Fossil illuminates ancestry of swifts and hummingbirds
Spectacularly preserved remains suggest that the two avian groups' predecessors got small before splitting and developing their flying chops.
- Health & Medicine
Highlights from the Pediatric Academic Societies meeting
Highlights from the pediatrics meeting held May 4-7 in Washington, D.C., include adolescent suicide risk and access to guns, a reason to let preemies get more umbilical cord blood and teens' cognitive dissonance on football concussions.
- Earth
With warming, Arctic is losing ground
Scientists anticipate big ecosystem changes as erosion spills nutrients into the sea
- Life
Numbers flap has minor implications for global extinctions
A statistical technique used to estimate rates of species disappearance is flawed, two ecologists charge — but not enough to invalidate recent dire assessments.
- Earth
Tainted by Cleanser: Antimicrobial agent persists in sludge
About 76 percent of a commonly used antimicrobial agent exits sewage-treatment plants as a component of the sludge that's often used as a farm fertilizer.
- Humans
Legal Debate: Assumptions on medical malpractice called into question
The notion that many medical-practice lawsuits are frivolous and intended to generate undeserved riches for their plaintiffs and lawyers isn't borne out in a new study.
- Humans
Roads pose growing danger in poor countries
Although roads are getting safer in many developed countries, traffic accidents are a rising and underestimated killer worldwide.
- Anthropology
Hybrid-Driven Evolution: Genomes show complexity of human-chimp split
A controversial new genetic comparison suggests that human and chimpanzee ancestors interbred for several million years before evolving into reproductively separate species no more than 6.3 million years ago.
