The days of students leafing through test-prep material are almost a thing of the past.

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Several companies in America scan their employees' e-mail for unpleasant or disloyal material, or test them to see if they have been taking drugs.

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This was turned into a cancer test by attaching small amounts of radioactive material to the antibody.

BBC: One test may 'find many cancers'

The test literally untwists the virus' genetic material, allowing researchers to create a gene-by-gene sequence of it.

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And before students will be awarded credit, they will have to pass a test to prove they have mastered the material.

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To help neo-literate police officers test their reading ability with informative and relevant material, UNESCO publishes a monthly newspaper, Khedmat (which means "service" in the Pashto and Dari languages).

UNESCO: EDUCATION

First, ending the stalemates on the Fissile Material Cut-off Treaty and the Comprehensive Nuclear Test Ban Treaty.

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The deluge may test the capacity of law enforcement to catalog and analyze so much material, but crucial clues are likely hiding in the digital files of marathon-goers who were unfortunate enough to be near Monday's explosions.

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In its design we took care that the test can cope with the challenges of forensic DNA analysis such as low amounts of material.

BBC: Forensic test can predict hair and eye colour from DNA

Each one, Vogt said, is like a Rorschach test for the theorists, offering plenty of ways to look at this brand-new material and many new thoughts on the origins of the stars, their planets, their orbits and their life spans.

CNN: Astronomers spy new neighbors outside solar system