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On the Cover

January-February 2003 Volume 91, Number 1

The light-sensitive portions of rod and cone photoreceptors are shown in a colored scanning electron micrograph. The photoreceptors are the sensory cells in vertebrate retinas; they contain rhodopsin, a protein whose shape changes when struck by packets of light. ...

FEATURE ARTICLES

H₂O *

David Goldes

Experiments in black and white

Bayh-Dole Reform and the Progress of Biomedicine *

Arti Rai, Rebecca Eisenberg

Allowing universities to patent the results of government-sponsored research sometimes works against the public interest

Mud, Marine Snow and Coral Reefs *

Eric Wolanski, Robert Richmond, Laurence McCook, Hugh Sweatman

The survival of coral reefs requires integrated watershed-based management activities and marine conservation

How the Retina Works

Helga Kolb

Much of the construction of an image takes place in the retina itself through the use of specialized neural circuits

The Hubble Constant and the Expanding Universe *

Wendy Freedman

A newly refined value of H₀, the expansion rate of the universe, may herald a first step toward a new era of "precision" cosmology

* access restricted to members and subscribers

SCIENTISTS’ BOOKSHELF

Information Inspiration

Alice Benessia

Stephen Wilson's Information Arts: Intersections of Art, Science, and Technology reexamines the relationship of art to scientific and technological research

See all book reviews for this issue.