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قدرات النياندرتاليني العقلية

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42<br />

50<br />

MATHEMATICS<br />

The Whole Universe Catalog<br />

By Stephen Ornes<br />

There exists a mathematical proof<br />

of a theorem so all-embracing and<br />

complex that only a handful of aging<br />

mathematicians actually understand it.<br />

They are racing the clock to pass along<br />

their secrets to a new generation.<br />

PUBLIC HEALTH<br />

Ebola War<br />

By Helen Branswell<br />

Africa’s crisis has jump-started efforts to<br />

develop critically needed vaccines and<br />

treatments.<br />

EDITOR IN CHIEF: Mariette DiChristina<br />

MANAGING EDITOR: Ricki L. Rusting<br />

CHIEF NEWS EDITOR: Philip M. Yam<br />

SEnIor writeR: Gary Stix<br />

EDITORS: Davide Castelvecchi,<br />

Graham P. Collins, Mark Fischetti,<br />

Steve Mirsky, Michael Moyer, George Musser,<br />

Christine Soares, Kate Wong<br />

CONTRIBUTING EDITORS: Mark Alpert,<br />

Steven Ashley, Stuart F. Brown, W. Wayt Gibbs,<br />

Marguerite Holloway, Christie Nicholson,<br />

Michelle Press, John Rennie, Michael Shermer,<br />

Sarah Simpson<br />

ASSOCIATE EDITORS, ONLINE: David Biello,<br />

Larry Greenemeier<br />

news Reporter, ONLINE: John Matson<br />

ART DIRECTOR, online: Ryan Reid<br />

ART DIRECTOR: Edward Bell<br />

ASSISTANT ART DIRECTOR: Jen Christiansen<br />

PHOTOGRAPHY EDITOR: Monica Bradley<br />

58<br />

HUMAN EVOLUTION<br />

Neandertal Minds<br />

By Kate Wong<br />

COPY DIRECTOR: Maria-Christina Keller<br />

Editorial Administrator: Avonelle Wing<br />

SENIOR SECRETARY: Maya Harty<br />

Our Neandertal cousins were much more<br />

intelligent than you probably think.<br />

COPY and PRODUCTION, nature publishing<br />

group:<br />

Senior COPY editor, npg: Daniel C. Schlenoff<br />

COPY editor, npg: Michael Battaglia<br />

editorial assistant, npg: Ann Chin<br />

managing pRODUCTION EDITOR, npg:<br />

Richard Hunt<br />

senior pRODUCTION EDITOR, npg: Michelle Wright<br />

67<br />

TECHNOLOGY<br />

Sound Bytes<br />

By Ron Cowen<br />

Ears are such terrific pattern finders that<br />

scientists are using them to find cancer<br />

cells and particles from space.<br />

72 Subject Index<br />

2015<br />

Editor In Chief<br />

Adnan Hamoui<br />

PRODUCTION MANAGER: Christina Hippeli<br />

ADVERTISING PRODUCTION MANAGER:<br />

Carl Cherebin<br />

PREPRESS AND QUALITY MANAGER:<br />

Silvia De Santis<br />

CUSTOM PUBLISHING MANAGER:<br />

Madelyn Keyes-Milch<br />

pRESIDENT: Steven Inchcoombe<br />

VICE PRESIDENT, operations and<br />

Administration: Frances Newburg<br />

Vice president, finance and<br />

BUSINESS DEVELOPMENT: Michael Florek<br />

BUSINESS MANAGER: Marie Maher<br />

Letters to the Editor<br />

Scientific American<br />

75 Varick Street, 9th Floor,<br />

New York, NY 10013-1917<br />

or editors@SciAm.com<br />

Letters may be edited for length and clarity. We<br />

regret that we cannot answer each one. Post a<br />

comment on any article instantly at<br />

www.ScientificAmerican.com/<br />

sciammag

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