Heart attack: Study asks Americans to identify most common signs

Heart attack: Study asks Americans to identify most common signs

Only 53 percent of respondents were aware of all five frequent symptoms
Hemp or marijuana? Scanner can help police and farmers in seconds

Hemp or marijuana? Scanner can help police and farmers in seconds

Handheld device uses Raman spectroscopy to create a quick and accurate test for THC
Ear bones allow researchers to track movement of Pacific bluefin tuna

Ear bones allow researchers to track movement of Pacific bluefin tuna

International team publishes results of four-year study

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