Under state law, all of New York's roughly 700 school districts must develop a system for evaluating teachers based on a mix of standardized test scores, classroom observations and other measures.

WSJ: Albany Eyeing Ways to Shield Teacher Data

Just one square inch, the chip contains 2, 056 microvalves that can selectively mix reagents together (in this case to test for the activity of a particular enzyme in a bacterium) in 256 reaction chambers, each one holding less than one-billionth of a liter of fluorescent dye.

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That mix of pragmatism and idealism was put to the test during the crisis in Egypt.

CNN: Can Clinton remake U.S. diplomacy?

As HGS unearthed new proteins, he would mix them with various immune-system cells in test tubes to see what happened.

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We take a million of these small molecules--they are not drugs but the starting points for drugs--and mix each one of those prototype drugs with a protein we have in a test tube.

FORBES: Magazine Article

The Halliburton information also disclosed an additional test in early April, prior to the explosion, that involved the same mix that was used on the Macondo well and also found it to be unstable, the letter said.

CNN: STORY HIGHLIGHTS

The test for Portugal and indeed for the euro-zone crisis response will be to calibrate the mix of market money and public money as it leaves its bailout behind.

WSJ: Good Omens But No Guarantees for Portugal