Rennie has written and edited articles on biology, technology and medicine and helped Scientific American produce award-winning single-topic issues for a variety of publications.

Hippocrates, for single-topic issues, for "Choices of the Heart," May/June.

Another food magazine, Bon Appetit, won for a single-topic issue, on Mediterranean food.

The first disk, due in January, will be a single-topic issue on the environment.

The prize for a single-topic issue went to Discover magazine for an issue entitled "The Science of the Race."

Recent single-topic issue include traumatic brain injury, dysphagia, cochlear implants, and posttraumatic stress disorder.

The magazine's Katrina coverage also won the award for a single-topic issue.

Business Week won the single-topic issue for "The Quality Imperative," on problems that American businesses face in offering high-quality services.

The Philosophical Forum often publishes single-topic issues.

Life won two awards, for design and for single-topic issue, the latter for its fall 1987 issue, "The Constitution."