Testing Human Limits

From the Ignoble to the Sublime

Richard Stone
Science 30 July 2004: 631.
Summary »|   PDF »|  

News

A Race to the Starting Line

Gretchen Vogel
Science 30 July 2004: 632-635.
Summary »|   Full Text »|   PDF »|  

Mighty Mice: Inspiration for Rogue Athletes?

Gretchen Vogel
Science 30 July 2004: 633.
Summary »|   Full Text »|   PDF »|  

Do Pool Sharks Swim Faster?

Kim Krieger
Science 30 July 2004: 636-637.
Summary »|   Full Text »|   PDF »|  

Peering Under the Hood of Africa's Runners

Constance Holden
Science 30 July 2004: 637-639.
Summary »|   Full Text »|   PDF »|  

An Everlasting Gender Gap?

Constance Holden
Science 30 July 2004: 639-640.
Summary »|   Full Text »|   PDF »|  

Graceful, Beautiful, and Perilous

Erik Stokstad
Science 30 July 2004: 641-642.
Summary »|   Full Text »|   PDF »|  

Engineering Peak Performance

Adrian Cho
Science 30 July 2004: 643-644.
Summary »|   Full Text »|   PDF »|  

Long Gone or Gone Wrong?

Adrian Cho
Science 30 July 2004: 644.
Summary »|   Full Text »|   PDF »|  

This Week in Science

Editor summaries of this week's papers.
Science 30 July 2004: 569.
|Full Text »

Editorial:
Here Come the Olympics

Donald Kennedy
Science 30 July 2004: 573.
Summary »|   PDF »|  

Editors' Choice

Highlights of the recent literature.
Science 30 July 2004: 575.
|Full Text »

NetWatch

Best of the Web in science.
Science 30 July 2004: 585.
|Full Text »

 AAAS News & Notes

Science 30 July 2004: 625.

 New Products

Science 30 July 2004: 687.
PDF »|  

News of the Week

THEORETICAL PHYSICS:
Hawking Slays His Own Paradox, But Colleagues Are Wary

Charles Seife
Science 30 July 2004: 586.
Summary »|   Full Text »|   PDF »|  

U.S. SCIENCE BUDGET:
Caught in a Squeeze Between Tax Cuts and Military Spending

Jeffrey Mervis
Science 30 July 2004: 587.
Summary »|   Full Text »|   PDF »|  

BIOMEDICINE:
An End to the Prion Debate? Don't Count on It

Jennifer Couzin
Science 30 July 2004: 589.
Summary »|   Full Text »|   PDF »|  

ARCHAEOLOGY:
Wisconsin Dig Seeks to Confirm Pre-Clovis Americans

Terrence Falk
Science 30 July 2004: 590.
Summary »|   Full Text »|   PDF »|  

ENVIRONMENT:
States Sue Over Global Warming

Erik Stokstad
Science 30 July 2004: 590.
Summary »|   Full Text »|   PDF »|  

KENNEWICK MAN:
Court Battle Ends, Bones Still Off-Limits

Constance Holden
Science 30 July 2004: 591.
Summary »|   Full Text »|   PDF »|  

U.S. SCIENCE POLICY:
Congressmen Clash on Politics and Scientific Advisory Committees

Jeffrey Mervis
Science 30 July 2004: 593.
Summary »|   Full Text »|   PDF »|  

NATIONAL LABS:
Los Alamos Suspends 19 Employees

David Malakoff
Science 30 July 2004: 593.
Summary »|   Full Text »|   PDF »|  

ScienceScope

Science 30 July 2004: 589.
|Full Text »

Random Samples

Science 30 July 2004: 603.
|Full Text »

News Focus

VIROLOGY:
Tiptoeing Around Pandora's Box

Martin Enserink
Science 30 July 2004: 594-595.
Summary »|   Full Text »|   PDF »|  

NEUROSCIENCE:
Crime, Culpability, and the Adolescent Brain

Mary Beckman
Science 30 July 2004: 596-599.
Summary »|   Full Text »|   PDF »|  

NEUROSCIENCE:
Adolescence: Akin to Mental Retardation?

Mary Beckman
Science 30 July 2004: 599.
Summary »|   Full Text »|   PDF »|  

SOLAR PHYSICS:
Solar Physicists Expose the Roots of the Sun's Unrest

Robert Irion
Science 30 July 2004: 600-601.
Summary »|   Full Text »|   PDF »|  

Letters

This Week's Letters

Science 30 July 2004: 607.
Summary »|  

 NIOSH and the CDC Reorganization

Marcus M. Key, Anthony Robbins, J. Donald J. Millar, and Linda Rosenstock
Science 30 July 2004: 607.
Full Text »|  

 NIOSH's Work on Firefighting

Harold A. Schaitberger
Science 30 July 2004: 607.
Full Text »|  

 International Students at Vanderbilt

Roger G. Chalkley
Science 30 July 2004: 607-609.
Full Text »|  

 Foreign-Born Physician-Scientists

Roberto Mendoza-Londono
Science 30 July 2004: 609.
Full Text »|  

 Asian Brains: U.S. v. Europe

Carl Djerassi
Science 30 July 2004: 609.
Full Text »|  

 Steps to End the Obesity Epidemic

Michael F. Jacobson
Science 30 July 2004: 611.
Full Text »|  

 The Virtues of Teaching

Arthur W. Galston
Science 30 July 2004: 611.
Full Text »|  

Books et al.

EVOLUTION:
How Species Arise

Benjamin K. Blackman and Loren H. Rieseberg
Science 30 July 2004: 612-613.
Summary »|   Full Text »|   PDF »|  

EVOLUTION:
Hunting for Origins

R. Andrew Cameron
Science 30 July 2004: 613-614.
Summary »|   Full Text »|   PDF »|  

 Books Received

Science 30 July 2004: 613.

Policy Forum

CLIMATE:
The Bush Administration's Approach to Climate Change

Spencer Abraham
Science 30 July 2004: 616-617.
Summary »|   Full Text »|   PDF »|  

Perspectives

ECOLOGY:
Enhanced: Ecogenomics Benefits Community Ecology

Marcel Dicke, Joop J. A. van Loon, and Peter W. de Jong
Science 30 July 2004: 618-619.
Summary »|   Full Text »|   PDF »|  

ECOLOGY:
Herbivores Rule

Robert J. Marquis
Science 30 July 2004: 619-621.
Summary »|   Full Text »|   PDF »|  

GEOLOGY:
A New Period for the Geologic Time Scale

Andrew H. Knoll, Malcolm R. Walter, Guy M. Narbonne, and Nicholas Christie-Blick
Science 30 July 2004: 621-622.
Summary »|   Full Text »|   PDF »|  

PLANETARY SCIENCE:
A Unique Chunk of the Moon

Randy L. Korotev
Science 30 July 2004: 622-623.
Summary »|   Full Text »|   PDF »|  

MATERIALS SCIENCE:
Watching the Nanograins Roll

E. Ma
Science 30 July 2004: 623-624.
Summary »|   Full Text »|   PDF »|  

Review

The Pathophysiology of Mitochondrial Cell Death

Douglas R. Green and Guido Kroemer
Science 30 July 2004: 626-629.
Abstract »|   Full Text »|   PDF »|   Supporting Online Material »|  

Brevia

APOBEC-Mediated Editing of Viral RNA

Kate N. Bishop, Rebecca K. Holmes, Ann M. Sheehy, and Michael H. Malim
Science 30 July 2004: 645.
A member of a family of proteins able to cause mutations in reverse-transcribed viral DNA can also edit viral RNA. Abstract »|   Full Text »|   PDF »|   Supporting Online Material »|  

Reports

Engineered Interface of Magnetic Oxides

Hiroyuki Yamada, Yoshihiro Ogawa, Yuji Ishii, Hiroshi Sato, Masashi Kawasaki, Hiroshi Akoh, and Yoshinori Tokura
Science 30 July 2004: 646-648.
A technique is introduced that allows the magnetic properties of buried interfaces to be characterized and manipulated in a controlled manner. Abstract »|   Full Text »|   PDF »|   Supporting Online Material »|  

Real-Space Observation of Molecular Motion Induced by Femtosecond Laser Pulses

Ludwig Bartels, Feng Wang, Dietmar Möller, Ernst Knoesel, and Tony F. Heinz
Science 30 July 2004: 648-651.
Published online 24 June 2004 [DOI: 10.1126/science.1099770] (in Science Express Reports)
Fast laser pulses and scanning tunneling microscopy show that electronically excited CO molecules diffuse across rows of copper atoms, not along the rows as do those excited by thermal diffusion. Abstract »|   Full Text »|   PDF »|  

Nanoparticles: Strained and Stiff

Benjamin Gilbert, Feng Huang, Hengzhong Zhang, Glenn A. Waychunas, and Jillian F. Banfield
Science 30 July 2004: 651-654.
Published online 1 July 2004 [DOI: 10.1126/science.1098454] (in Science Express Reports)
Because of strain induced by their small surfaces, zinc sulfide nanoparticles are stiffer and more disordered than the bulk material. Abstract »|   Full Text »|   PDF »|   Supporting Online Material »|  

Grain Boundary-Mediated Plasticity in Nanocrystalline Nickel

Zhiwei Shan, E. A. Stach, J. M. K. Wiezorek, J. A. Knapp, D. M. Follstaedt, and S. X. Mao
Science 30 July 2004: 654-657.
Unlike coarser grained nickel, nanocrystalline nickel accommodates deformation mainly by rotation of the tiny grains. Abstract »|   Full Text »|   PDF »|   Supporting Online Material »|  

Pinpointing the Source of a Lunar Meteorite: Implications for the Evolution of the Moon

Edwin Gnos, Beda A. Hofmann, Ali Al-Kathiri, Silvio Lorenzetti, Otto Eugster, Martin J. Whitehouse, Igor M. Villa, A. J. Timothy Jull, Jost Eikenberg, Bernhard Spettel, Urs Krähenbühl, Ian A. Franchi, and Richard C. Greenwood
Science 30 July 2004: 657-659.
Before it was ejected from a small crater in the Lalande area of the Moon, a lunar meteorite experienced three impact events over nearly 4 billion years. Abstract »|   Full Text »|   PDF »|   Supporting Online Material »|  

Foundering Lithosphere Imaged Beneath the Southern Sierra Nevada, California, USA

Oliver S. Boyd, Craig H. Jones, and Anne F. Sheehan
Science 30 July 2004: 660-662.
Seismic imaging reveals that a piece of layered, dense lower crust may be delaminating and dropping into the mantle deep beneath the Sierra Nevada. Abstract »|   Full Text »|   PDF »|   Supporting Online Material »|  

Herbivores Promote Habitat Specialization by Trees in Amazonian Forests

Paul V. A. Fine, Italo Mesones, and Phyllis D. Coley
Science 30 July 2004: 663-665.
When protected from pests, plants from clay-rich soils outgrow those from white sandy soils on either soil type, but if pests are present, each flourishes only in its native habitat. Abstract »|   Full Text »|   PDF »|   Supporting Online Material »|  

Silencing the Jasmonate Cascade: Induced Plant Defenses and Insect Populations

André Kessler, Rayko Halitschke, and Ian T. Baldwin
Science 30 July 2004: 665-668.
Published online 1 July 2004 [DOI: 10.1126/science.1096931] (in Science Express Reports)
Genetic elimination of a biochemical defense system in tobacco not only increases damage from its usual pests but also attracts new pests. Abstract »|   Full Text »|   PDF »|   Supporting Online Material »|  

Osedax: Bone-Eating Marine Worms with Dwarf Males

G. W. Rouse, S. K. Goffredi, and R. C. Vrijenhoek
Science 30 July 2004: 668-671.
A previously undescribed female marine worm harbors small males within its body and, lacking a gut, feeds on whale carcasses with the aid of commensal bacteria. Abstract »|   Full Text »|   PDF »|   Supporting Online Material »|  

The Complete Genome Sequence of Propionibacterium Acnes, a Commensal of Human Skin

Holger Brüggemann, Anke Henne, Frank Hoster, Heiko Liesegang, Arnim Wiezer, Axel Strittmatter, Sandra Hujer, Peter Dürre, and Gerhard Gottschalk
Science 30 July 2004: 671-673.
The bacterium that causes acne contains 2333 genes; some code for enzymes that attack and degrade host molecules, and others code for cell-surface molecules that may yield clues to skin inflammation. Abstract »|   Full Text »|   PDF »|   Supporting Online Material »|  

Synthetic Mammalian Prions

Giuseppe Legname, Ilia V. Baskakov, Hoang-Oanh B. Nguyen, Detlev Riesner, Fred E. Cohen, Stephen J. DeArmond, and Stanley B. Prusiner
Science 30 July 2004: 673-676.
Synthetic, protein-only prions can cause a mad cow–like disease in mice, as can brain tissue from these mice, demonstrating that misfolded proteins are the infectious agents in prion disease. Abstract »|   Full Text »|   PDF »|   Supporting Online Material »|  

Host-to-Parasite Gene Transfer in Flowering Plants: Phylogenetic Evidence from Malpighiales

Charles C. Davis and Kenneth J. Wurdack
Science 30 July 2004: 676-678.
Published online 15 July 2004 [DOI: 10.1126/science.1100671] (in Science Express Reports)
A parasitic flowering plant has acquired at least one gene from its unrelated plant host, explaining previous confusion about its true phylogeny. Abstract »|   Full Text »|   PDF »|   Supporting Online Material »|  

KIF1A Alternately Uses Two Loops to Bind Microtubules

Ryo Nitta, Masahide Kikkawa, Yasushi Okada, and Nobutaka Hirokawa
Science 30 July 2004: 678-683.
Two loops of a cellular motor protein alternately bind to tubulin, propelling it along the microtubule. Abstract »|   Full Text »|   PDF »|   Supporting Online Material »|  

Crystal Structures of Human Cytochrome P450 3A4 Bound to Metyrapone and Progesterone

Pamela A. Williams, Jose Cosme, Dijana Matak Vinkovic, Alison Ward, Hayley C. Angove, Philip J. Day, Clemens Vonrhein, Ian J. Tickle, and Harren Jhoti
Science 30 July 2004: 683-686.
Published online 15 July 2004 [DOI: 10.1126/science.1099736] (in Science Express Reports)
The major enzyme that breaks down drugs in the human liver has a binding site distant from the active site that may recognize substrates in a preliminary screening step. Abstract »|   Full Text »|   PDF »|   Supporting Online Material »|