Science - May 6 2005.pdf

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6 May 2005

Vol. 308 No. 5723

Pages 741–908

$10

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TEAM LinG - Live, Informative, Non-cost and Genuine !

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GE Healthcare

4x greater binding capacity

in histidine-tagged

protein purification

Ni Sepharose ™ products from GE Healthcare give you the highest binding

capacity available for histidine-tagged protein purification. With up to four times

the binding capacity, it’s no longer pure imagination to dramatically increase your

yield, while saving time and costs. Maximum target protein activity is assured,

thanks to tolerance of a wide range of additives and negligible nickel ion leakage.

The flexibility to use a variety of protocols ensures the highest possible purity.

Ni Sepharose 6 FF is excellent for manual procedures such as gravity/batch and

easy scale-up, while the HP version is designed for high-performance in automated

purification systems – both are available in different formats, including prepacked

columns. Outstanding performance has never been easier to achieve.

www.amershambiosciences.com/his

© 2005 General Electric Company - All rights reserved.

Amersham Biosciences AB, a General Electric company

going to market as GE Healthcare.

GE10-05

TEAM LinG - Live, Informative, Non-cost and Genuine !

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S PECIAL I SSUE

D ISTRIBUTED C OMPUTING

Computers processing data for the Oxford University project ClimatePrediction.net

(see page 810 ). Scientific computing ventures in fields as varied as number theory,

genomics, and particle physics have asked people to donate their computers’ spare

CPU cycles to create a virtual machine that dwarfs the top supercomputers. [Image:

Chris Valentine/hockeyphotos.com; Martin Dzbor/KMi, Open University]

Volume 308

6 May 2005

Number 5723

I NTRODUCTION

809

818 Cyberinfrastructure for e-Science

T. Hey and A. E. Trefethen

822 Cyberinfrastructure: Empowering a “Third Way” in

Biomedical Research

K. H. Buetow

Related Editorial page 757 ; News story page 773

All for One and One for All

N EWS

810

Grassroots Supercomputing

Grid Sport: Competitive Crunching

813

Data-Bots Chart the Internet

V IEWPOINTS

814

For related online content in STKE,

see page 751 or go to

www.sciencemag.org/sciext/computers/

Service-Oriented Science

I. Foster

D EPARTMENTS

N EWS F OCUS

751

S CIENCE O NLINE

778

N EUROSCIENCE

The Dark Side of Glia

753

T HIS W EEK IN S CIENCE

757

E DITORIAL by Edward D. Lazowska and

David A. Patterson

An Endless Frontier Postponed

related Distributed Computing section page 809

782

E MBRYOLOGY

Embryologists Polarized Over Early Cell Fate

Determination

785

T ECHNOLOGY

Electronic Paper: A Revolution About to Unfold?

Shrinking Dimensions Spur Research Into Ever-Slimmer

Batteries

759

E DITORS ’C HOICE

764

C ONTACT S CIENCE

769

N ET W ATCH

877

N EW P RODUCTS

787

A TMOSPHERIC S CIENCE

Changes in the Sun May Sway the Tropical

Monsoon

related Report page 854

884

S CIENCE C AREERS

N EWS OF THE W EEK

770

P UBLIC H EALTH

A Heavyweight Battle Over CDC’s

Obesity Forecasts

788

R ANDOM S AMPLES

L ETTERS

791

771

A STRONOMY

Picture-Perfect Planet on Course for the

History Books

Calling on Scientists to Fight Budget Cuts B. Gordon.

Establishing Indicators for Biodiversity J. Brauer;

B. Czech et al . Response A. P. Dobson et al . Memo to

NASA: Finish What You Start C. J. Robinove. The End

of a Chilean Institute L. Barbeito et al .

B OOKS ET AL .

778

773

C OMPUTING

IBM Offers Free Number Crunching for

Humanitarian Research Projects related

Distributed Computing section page 809

794

A RCHAEOLOGY

The Goddess and the Bull Çatalhöyük: An

Archaeological Journey to the Dawn of Civilization

M. Balter, reviewed by S. Mithen

773

S CIENCE S COPE

774

S CIENCE R ESOURCES

Chemists Want NIH to

Curtail Database

795

Nota Bene on The Cartoon Guide to Chemistry

E SSAY

774

E UROPEAN P OLICY

Panel Gives Thumbs-Down to

European Institute of

Technology

796

G LOBAL V OICES OF S CIENCE

Pleistocene Park: Return of the

Mammoth’s Ecosystem

S. A. Zimov

P ERSPECTIVES

775

G ENOMICS

Celera to End Subscriptions and Give Data

to Public GenBank

796

777

NASA

U.S. Lawmakers Call for New Earth Science

Strategy

799

N EUROSCIENCE

Attractors in Memory

B. Poucet and E. Save

related Report page 873

777

D EPARTMENT OF E NERGY

Two-Thirds of Senate Backs More Research

Contents continued

TEAM LinG - Live, Informative, Non-cost and Genuine !

745

www.sciencemag.org

SCIENCE

VOL 308

6 MAY 2005

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