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Features

Heart of the Matter

A particle "factory" for probing a seminal asymmetry

By John Horgan

Challenges for 1994

By Jonathan Piel

From Mice to Men

The burgeoning business of gene therapy

By Tim Beardsley

Bright Future

Porous silicon proves versatile, but is it real?

By Paul Wallich

The Color of Sound

Shedding light on sonoluminescence

By Philip Yam

Clean Definitions

The nation contemplates what to do with Superfund

By Gary Stix

Deliverance

Medicine closes in on an artificial liver device

By W. Wayt Gibbs

Core Questions

Glaciers and oceans reveal a mercurial climate

By Marguerite Holloway

Fractured Functions

Does the brain have a supreme integrator?

By John Horgan

Living Legend

Is the last ground sloth hidden in the Amazon?

By Marguerite Holloway

A Girl's Best Friend

Diamond continues to resist efforts at economic synthesis

By Kristin Leutwyler

When Cells Divide

Making space for the next wave of wireless communications

By W. Wayt Gibbs

Shrinking Sandbox

IBM's woes visit its esteemed research division

By Gary Stix

Wanted: a Defense R&D Policy

Defense researchers seek to redefine their mission

By John Horgan

A Joycean Mutation

Researchers discover a new mechanism for cancer

By Tim Beardsley

The Fertility Decline in Developing Countries

Family size is decreasing in many Third World countries. The reasons provide the key to slowing population growth

By Bryant Robey, Shea O. Rutstein and Leo Morris

The Compton Gamma Ray Observatory

A steady stream of data from this orbiting observatory is painting a portrait of a dynamic and often enigmatic cosmos

By Neil Gehrels, Carl E. Fichtel, Gerald J. Fishman, James D. Kurfess and Volker Schönfelder

MHC Polymorphism and Human Origins

The diversity of human tissue types was generated long before Homo sapiens emerged

By Jan Klein, Naoyuki Takahata and Francisco J. Ayala

Africanized Bees in the U.S.

Africanized honeybees have reached the U.S. from points south As more of them arrive, they will certainly wreak some havoc but perhaps not the type their "killer bee" nickname would imply

By Thomas E. Rinderer, Benjamin P. Oldroyd and Walter S. Sheppard

Drugs by Design

Structure-based design, an innovative approach to developing drugs, has recently spawned many promising therapeutic agents, including several now in human trials for treating AIDS, cancer and other diseases

By Charles E. Bugg, William M. Carson and John A. Montgomery

Coupled Oscillators and Biological Synchronization

A subtle mathematical thread connects clocks, ambling elephants, brain rhythms and the onset of chaos

By Steven H. Strogatz and Ian Stewart

The Death Cults of Prehistoric Malta

New archaeological excavations reveal that as the ancient island societies suffered from environmental decline, they developed an extreme religious preoccupation with life and death

By Caroline Malone, Anthony Bonanno, Tancred Gouder, Simon Stoddart and David Trump

Current Events

Now that the blizzard of hype has stopped, workers are gradually realizing the promise of high-temperature superconductors

By Philip Yam

Departments

  • Cosmic SNUs

  • Letters

    Letters to the Editors, December 1993

  • Erratum

  • 50, 100 & 150 Years Ago

    50 and 100 Years Ago: Penicillin and Molecules in Diamonds

  • Fact or Fiction

    Book Reviews—Science Books for Young People

  • Amateur Scientist

    Electronic Fireflies

  • Departments

    Annual Index 1993

  • Eponymous Science

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