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On the Cover

July-August 2000 Volume 88, Number 4

Spouting humpback whales are part of the picturesque landscape of Frederick Sound, Alaska. The majesty of these and other marine mammals has captured the attention of conservationists who devote time and money to saving them from possible extinction. ...


FEATURE ARTICLES

Measuring Success in Conservation

Leah Gerber, Douglas DeMaster, Simona Roberts

Assessing efforts to restore populations of marine mammals is partly a matter of epistemology: How do you know when enough is enough?


Mathematical Devices for Getting a Fair Share *

Theodore Hill

Whether the problem involves an estate, a cake or an opportunity for regency, solutions now exist for obtaining an equitable division


Depression and the Birth and Death of Brain Cells

Henriette van Praag, Barry Jacobs, Fred Gage

The turnover of neurons in the hippocampus might help to explain the onset of and recovery from clinical depression


Testing Ecological Patterns *

James Sanderson

A well-known algorithm from computer science aids the evaluation of species distributions


The Heart of the Milky Way *

Fulvio Melia

A visual tour of our Galaxy's center reveals astrophysical oddities seen nowhere else in the Milky Way


* access restricted to members and subscribers


SCIENTISTS’ BOOKSHELF

From Eugenics to Genomics

Michael Yudell

A review of The Meanings of the Gene: Public Debates About Human Heredity, by Celeste Michelle Condit.

See all book reviews for this issue.


DEPARTMENTS

COMPUTING SCIENCE

On the Teeth of Wheels

Brian Hayes

The meshing destinies of gears and computers

MACROSCOPE

Crawfish and Water Birds

Jay V. Huner

An uneasy balance in the Louisiana wetlands

MARGINALIA

Narrative

Roald Hoffmann

A good story can make up for a lack of simplicity

ENGINEERING

Human Factors *

Henry Petroski

A user's history of keypads

SCIENCE OBSERVER

Invisible Lights in the Sky

David Schneider

Sprites, elves, blue jets and other aerial anomalies

Resolving Arguments by Design

Rebecca Sloan Slotnick

Can computers mediate disagreements between humans?

FROM THE PRESIDENT


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