Hydrogen sulfide, recognized by its characteristic rotten egg smell, is synthesized in the respiratory center -- an integral brain region governing respiration. Researchers have identified that ...

A stooped, bespectacled man disembarked last week from the Swedish ship Drottningholm, hurried to the campus of Pennsylvania’s sedate Swarthmore College where he delivered the first of a series of ...

Nitric oxide (NO) is a central molecule in the global cycling of nitrogen, and also toxic. Little is known about if and how microbes can use NO as a substrate for growth. Scientists have now managed ...