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Biodiesel in a caustic flash

Biodiesel represents a potentially cleaner and more sustainable fuel than those derived from crude oil. Now, scientists have developed a high-speed conversion that turns waste cooking oil into fuel using ultrasound and caustic ...

dateFeb 29, 2016 in Energy & Green Tech
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Study—Berkeley soda tax falls flat

A Cornell-University of Iowa analysis of a soda tax passed last fall by voters in Berkeley, California – the first such city ordinance in the country – found the measure so far has fizzled, raising retail prices for high-calorie ...

dateAug 18, 2015 in Economics & Business
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Video: Is aspartame safe?

It's been around for decades and it's probably in your diet soda - for a little while longer anyway. PepsiCo announced recently it was removing the artificial sweetener aspartame from its Diet Pepsi products in the U.S. starting ...

dateJun 15, 2015 in Other
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The first caffeine-'addicted' bacteria

Some people may joke about living on caffeine, but scientists now have genetically engineered E. coli bacteria to do that—literally. Their report in the journal ACS Synthetic Biology describes bacteria being "addicted" ...

dateMar 27, 2013 in Biochemistry
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