Search Results for: assessments
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3,586 results
3,586 results for: assessments
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- Math
Logic in the Blocks
Sliding-block puzzles can be surprisingly difficult to solve and can even serve as theoretical models of computation.
- Health & Medicine
Cooking Up a Carcinogen
The discovery that acrylamide—a known animal carcinogen—forms in many foods as they fry or bake has prompted the development of an international research network to investigate whether it poses a threat.
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- Earth
Taming Toxic Tides
A growing international cadre of scientists is exploring a simple strategy for controlling toxic algal blooms: flinging dirt to sweep the algae from the water.
- Earth
Electronic Jetsam
Oceanographers are developing and deploying a variety of seafaring probes—including drifters, gliders, and scientific torpedoes—that will enable them to explore and monitor the ocean remotely.
- Earth
Proof of Burden
Two teams of scientists report that the blood and urine of most Americans contain toxic cocktails of metals, artificial hormones, and chemical ingredients of plastics, flame retardants, pesticides, herbicides, and disinfectants.
- Ecosystems
Cultivating Weeds
Some formerly mild-mannered plants turn into horticultural bullies when planted far outside their native range.
- Computing
Minding Your Business
By means of novel sensors and mathematical models, scientists are teaching the basics of human social interactions to computers, which should ease the ever-expanding collaboration between people and machines.
- Health & Medicine
Predicting Prostate Cancer’s Moves
To guide treatment decisions in individual cases of prostate cancer, medical researchers are using gene-expression profiling and other novel techniques to develop better predictive markers of how a given tumor will behave.
