Related topics: high blood pressure · blood vessels

Minimizing ammonia fuel emissions

New simulations indicate that swirling ammonia in combustion chambers can help reduce harmful emissions – insight that may help on-going efforts to develop ammonia as a carbon-free fuel source.

Exploring greener approaches to nitrogen fixation

About half of the nitrogen in our bodies today comes from bacteria via the enzyme nitrogenase, which converts, or "fixes," unreactive nitrogen gas in the atmosphere into a form that plants can use for growth. The other half ...

Image: Airway monitoring experiment for astronauts

In recognition of World Asthma Day, here is ESA astronaut Alexander Gerst preparing to take preflight measurements for the Airway Monitoring experiment, which looks into inflammation of the airway.

Snatching at the cradle of life

Silence of the WA outback key in detecting low-frequency radio waves and, maybe, the precursors of life itself.

Heavy nitrogen molecules reveal planetary-scale tug-of-war

Nature whispers its stories in a faint molecular language, and Rice University scientist Laurence Yeung and colleagues can finally tell one of those stories this week, thanks to a one-of-a-kind instrument that allowed them ...

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