It also causes inflammation in the brain, find University of Washington researcher Suzanne Craft, PhD, and colleagues.

Dr. Michael Kühl of the University of Copenhagen and colleagues have solved the mystery.

But a new study by Dr. Jost Wendt of the University of Arizona and colleagues shows that the idea may have potentially harmful effects.

Imke de Pater of the University of California, Berkeley, and colleagues have studied these newest rings and found that the outermost one holds a surprise.

University of Aberdeen researcher Graham Devereux, MD, PhD, and colleagues have been following 2,000 women since early pregnancy.

The question for a researcher at the University of Glasgow and colleagues was whether a parrot's fluorescence serves some function.

For that, Roman Biek of the University of Montana and colleagues used a different kind of tag - a virus.

A 2004 phylogenetic analysis, performed by Paul Sereno of the University of Chicago and several colleagues, obtained the following results:

Junping Chen of the University of Oklahoma and colleagues have found a candidate, from the automotive and jewelry industries.

James O. Prochaska of the University of Rhode Island and colleagues developed the Transtheoretical Model beginning in 1977.