Spraying a plant hormone on broccoli boosts its cancer-fighting potential

A new study has found that liquid waste from hydraulic fracturing, or “fracking,” that was treated and released into local streams in Pennsylvania still contained elevated levels of salts and other contaminants, which could be dangerous to aquatic life and human health.

Scientists are reporting an advance in smartphone-based imaging that could help physicians in far-flung and resource-limited locations monitor how well treatments for infections are working by detecting, for the first time, individual viruses. Their study on the light-weight device, which converts the phone into a powerful mini-microscope, appears in the journal ACS Nano.

The world’s largest scientific society today issued guidelines to better ensure the safety of the tens of thousands of personnel who work in research laboratories around the country.