Search Results for: assessments
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3,586 results
3,586 results for: assessments
- Planetary Science
After the Tragedy
NASA's plan to return the space shuttles safely to flight after the Columbia accident is coming under intense scrutiny.
- Animals
Leashing the Rattlesnake
Even in the 21st century, there's still room for old-fashioned, do-it-yourself ingenuity in experimental design for studying animal behavior.
- Earth
When Genes Escape
The focus of the debate over transgenic crops has changed from whether genes will escape to what difference it will make when they do.
- Math
Best Guess
Economists are exploring the use of betting markets as tools for predicting the consequences of policy decisions by a government, corporation, or other institution.
- Earth
Danger on Deck?
The Environmental Protection Agency no longer allows residential installation of pressure-treated lumber and recommends the application of sealant to prevent leaching of carcinogens out of existing lumber structures.
- Earth
Killer Waves
Scientists are using sophisticated computer models, field studies of coastal geology, and data from tidal gauges to assess the tsunami risk for coastal residents.
- Tech
Body Builders
By growing stem cells on three- dimensional polymer scaffolds, tissue engineers hope to mimic natural tissue development and ultimately produce replacement body parts.
- Materials Science
Forensics on Trial
A decades-long practice of matching bullets on the basis of their chemical makeup is flawed, and the story behind this forensic technique reveals how science can get distorted in the courtroom.
- Earth
Global Vineyard
Recognizing that continued climate change may leave some renowned grape-growing regions too hot or too dry to support vineyards, growers may turn to new technology and techniques to produce consistently better fruit.
- Earth
Dead Waters
Coastal dead zones—underwater regions where oxygen concentrations are too low for fish to survive—are mushrooming globally, threatening to transform entire ecosystems.
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Deception Detection
Psychologists are trying to see whether the statistically significant deception signals found in laboratory experiments exist in high stakes, realistic lies, and whether real lie detectors, such as police officers and judges, are able to detect them.
