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Iran's Nuclear Puzzle

Rich in fossil-fuel resources, Iran is pursuing a nuclear power program difficult to understand in the absence of military motives

By David A. Schwarzbach

Configurable Computing

Computers that modify their hardware circuits as they operate are opening a new era in computer design. Because they can filter data rapidly, they excel at pattern recognition, image processing and encryption...

By John Villasenor and William H. Mangione-Smith

Early Hominid Fossils from Africa

A new species of Australopithecus, the ancestor of Homo, pushes back the origins of bipedalism to some four million years ago

By Alan Walker and Meave Leakey

Panoramas of the Seafloor

Modern sonar techniques map the continental margins of the U.S. and reveal the richly varied scenery usually hidden underwater

By Lincoln F. Pratson and William F. Haxby

Searching for Digital Pictures

Computers that can reason about images may be able to pick out distinct features of a person, place or object from photograph archives

By David Forsyth, Jitendra Malik and Robert Wilensky

Overcoming the Obstacles to Gene Therapy

Treating disease by providing needed genes remains a compelling idea, but clinical and basic researchers still have much to do before gene therapy can live up to its promise

By Theodore Friedmann

Nonviral Strategies for Gene Therapy

Many drawbacks of viral gene delivery agents might be overcome by nonviral systems. Studies in patients suggest these systems have potential as therapies and as vaccines

By Philip L. Felgner

Gene Therapy for Cancer

Inserted genes could in theory arrest tumor growth or even AIDS

By R. Michael Blaese

Gene Therapy for the Nervous System

Inserting genes into brain cells may one day offer doctors a way to slow, or even reverse, the damage from degenerative neurological disease

By Dora Y. Ho and Robert M. Sapolsky

What Cloning Means for Gene Therapy

By John Rennie and Steve Mirsky

Bringing Schrdinger's Cat to Life

By Philip Yam


  • From the Editor

    Recognizing Technological Genius

  • Letters

    Letters to the Editors, June 1997

  • Recommended

    Reviews And Commentaries: Thinking and Feeling

  • Anti Gravity

    Small Fry

  • 50, 100 & 150 Years Ago

    50, 100 and 150 Years Ago: Competition for Lead, Fluorine Liquefied and Astrophotography

  • Wonders

    Wrapping up Science and Art

  • In Brief

    In Brief, June 1997

  • Profile

    Scanning the Horizon

  • Mathematical Recreation

    The Sifting Sands of Factorland

  • Amateur Scientist

    Getting Inside an Ant's Head

  • Science and the Citizen

    War Without End?

  • Bee Blight

  • When Nutrients Turn Noxious

  • Sex, Flies and Videotape

  • By the Numbers

    Lung Cancer in U.S. Males

  • Working Knowledge

    Decaffeinating Coffee--Working Knowledge

  • Connections

    Notice the Difference?

  • Departments

    The 1997 National Medal of Technology

  • Cyber View

    Disliking the Internet

  • Technology and Business

    Seller Beware

  • Floating Giants

  • Spying Saucer

  • Medical Mismatch

  • Attacking Arthritis

  • In Focus

    Pinning Down Inflation

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