This Week in Science

Editor summaries of this week's papers.
Science 27 September 1996: 1773.
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Editorial:
Cooperation, Competition, and Science Policy

Erich Bloch
Science 27 September 1996: 1779-0.
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 ScienceScope|

Science 27 September 1996: 1787-0.
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 Random Samples|Health of Native Americans * Rabies Death for Poe? * Micromanaging Atoms

Science 27 September 1996: 1805-0.
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 Book Reviews|Frontiers of Illusion, reviewed by D. H. Guston * The Evolution and Extinction of the Dinosaurs and Dinosaur Extinction and the End of an Era, D. A. Russell * The Great Dinosaur Extinction Controversy * Vignettes * Books Received

Science 27 September 1996: 1806-1808.
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 AAAS News & Notes|

Science 27 September 1996: 1880-1881.
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 Products & Materials|

Science 27 September 1996: 1882-1883.
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 Quarterly Index|

Science 27 September 1996: 1884-1894.

News and Comment

Genetics: Whose Genome Is It, Anyway?

Eliot Marshall
Science 27 September 1996: 1788-1789.
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France: Research Is Spared the Budget Ax

Michael Balter
Science 27 September 1996: 1790-0.
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Germany: No Respite for International Labs

Robert Koenig
Science 27 September 1996: 1790-0.
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Computer Networks: Explosive Growth Helps Japan Take Its Place on Global Team

Lori Valigra
Science 27 September 1996: 1791-1792.
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Information Science: New Networks Aren't Good Enough

Lori Valigra
Science 27 September 1996: 1791-0.
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Natural History Museums: A Plea to Protect Threatened Collections

Nigel Williams
Science 27 September 1996: 1792-1793.
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Science Policy: Congressional Scorecard Sparks Furor

Andrew Lawler
Science 27 September 1996: 1793-1794.
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Undergraduate Education: In Boston, a Revolutionary Experience

Wade Roush
Science 27 September 1996: 1794-0.
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Research News

Microbiology: Biofilms Invade Microbiology

Carol Potera
Science 27 September 1996: 1795-1797.
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Microbiology: Linking Microbiology and Engineering

Carol Potera
Science 27 September 1996: 1796-0.
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AIDS Research: Receptor Mutations Help Slow Disease Progression

Jon Cohen
Science 27 September 1996: 1797-1798.
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AIDS Research: Quick Work Draws Scientific Praise, Colleagues' Complaints

Jon Cohen
Science 27 September 1996: 1798-0.
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 MEETING BRIEFS: Hubble Spectrograph Takes a Hard Look in the Ultraviolet

Gretchen Vogel
Science 27 September 1996: 1799-1800.
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Astrophysics: Birth of B and Be

Gretchen Vogel
Science 27 September 1996: 1799-0.
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Astronomy: Hints of Distant Comets?

Gretchen Vogel
Science 27 September 1996: 1799-1800.
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Astronomy: Aurora on Ganymede

Gretchen Vogel
Science 27 September 1996: 1799-0.
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Materials Science: Plastics May Add New Colors to Lasers' Light Show

Robert F. Service
Science 27 September 1996: 1800-1801.
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Neurobiology: How the Songbird Makes His Song

Elizabeth Pennisi
Science 27 September 1996: 1801-1802.
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Particle Physics: Politics Meets Technology in Next Collider

Alexander Hellemans
Science 27 September 1996: 1802-1803.
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Letters

 This Week's Letters

Science 27 September 1996: 1781-1785.
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 Interleukin-1 Research

Thomas P. Hopp
Science 27 September 1996: 1781-1785.
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 On Sociological Biophobia

Andrew Abbott; and John H. Gagnon
Science 27 September 1996: 1781-1785.
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 Morality Play

Leslie Z. Benet;, Walter R. Debler;, James R. Thomen;, Ernest B. Hook;, Carter Eckert;, and Dorothy S. Zinberg
Science 27 September 1996: 1781-1785.
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 On Sociological Biophobia

John H. Gagnon
Science 27 September 1996: 1782.

 Morality Play

Leslie Z. Benet
Science 27 September 1996: 1782.

 Morality Play

Walter R. Debler
Science 27 September 1996: 1783.
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 Morality Play

James R. Thomen
Science 27 September 1996: 1783-1784.
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 Morality Play

Ernest B. Hook
Science 27 September 1996: 1784.
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 Morality Play

Carter Eckert
Science 27 September 1996: 1784.
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 Response: Morality Play

Dorothy S. Zinberg
Science 27 September 1996: 1784-1785.
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Books et al.

 Paleovertebrates: The Evolution and Extinction of the Dinosaurs.

Dale A. Russell
Science 27 September 1996: 1807-1808.
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 Also Noteworthy: The Great Dinosaur Extinction Controversy.

Katherine Livingston
Science 27 September 1996: 1808.
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 Books Received

Science 27 September 1996: 1808.
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Perspectives

Flux Lattice Melting

David J. Bishop
Science 27 September 1996: 1811-0.
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Is Neural Noise Just a Nuisance?

David Ferster
Science 27 September 1996: 1812-0.
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A Parallel Spliceosome

Timothy W. Nilsen
Science 27 September 1996: 1813-0.
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Articles

 Noble Gases and Earth's Accretion

Charles L. Harper, Jr. and Stein B. Jacobsen
Science 27 September 1996: 1814-1818.
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 Copper Sources, Metal Production, and Metals Trade in Late Postclassic Mesoamerica

Dorothy Hosler and Andrew Macfarlane
Science 27 September 1996: 1819-1824.
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Research Article

 Highly Diverged U4 and U6 Small Nuclear RNAs Required for Splicing Rare AT-AC Introns

Woan-Yuh Tarn and Joan A. Steitz
Science 27 September 1996: 1824-1832.
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Reports

Semiconducting Polymers: A New Class of Solid-State Laser Materials

Fumitomo Hide, María A. Díaz-García, Benjamin J. Schwartz, Mats R. Andersson, Qibing Pei, and Alan J. Heeger
Science 27 September 1996: 1833-1836.
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Nanorod-Superconductor Composites: A Pathway to Materials with High Critical Current Densities

Peidong Yang and Charles M. Lieber
Science 27 September 1996: 1836-1840.
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Methane Hydrate and Free Gas on the Blake Ridge from Vertical Seismic Profiling

W. Steven Holbrook, Hartley Hoskins, Warren T. Wood, Ralph A. Stephen, Daniel Lizarralde, and Leg 164 Science Party
Science 27 September 1996: 1840-1843.
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Peculiarities of Methane Clathrate Hydrate Formation and Solid-State Deformation, Including Possible Superheating of Water Ice

Laura A. Stern, Stephen H. Kirby, and William B. Durham
Science 27 September 1996: 1843-1848.
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A Trinuclear Intermediate in the Copper-Mediated Reduction of O₂: Four Electrons from Three Coppers

Adam P. Cole, David E. Root, Pulakesh Mukherjee, Edward I. Solomon, and T. D. P. Stack
Science 27 September 1996: 1848-1850.
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Age and Paleogeographical Origin of Dominican Amber

Manuel A. Iturralde-Vinent and R. D. E. MacPhee
Science 27 September 1996: 1850-1852.
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Initiation of Runaway Cell Death in an Arabidopsis Mutant by Extracellular Superoxide

Thorsten Jabs, Robert A. Dietrich, and Jeffery L. Dangl
Science 27 September 1996: 1853-1856.
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Genetic Restriction of HIV-1 Infection and Progression to AIDS by a Deletion Allele of the CKR5 Structural Gene

Michael Dean, Mary Carrington, Cheryl Winkler, Gavin A. Huttley, Michael W. Smith, Rando Allikmets, James J. Goedert, Susan P. Buchbinder, Eric Vittinghoff, Edward Gomperts, Sharyne Donfield, David Vlahov, Richard Kaslow, Alfred Saah, Charles Rinaldo, Roger Detels, Hemophilia Growth and Development Study, Multicenter AIDS Cohort Study, Multicenter Hemophilia Cohort Study, San Francisco City Cohort, ALIVE Study, and Stephen J. O'Brien
Science 27 September 1996: 1856-1862.
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CD40 Ligand-Dependent T Cell Activation: Requirement of B7-CD28 Signaling Through CD40

Yiping Yang and James M. Wilson
Science 27 September 1996: 1862-1864.
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Requirement for CD40 Ligand in Costimulation Induction, T Cell Activation, and Experimental Allergic Encephalomyelitis

Iqbal S. Grewal, Harald G. Foellmer, Kate D. Grewal, Jianchao Xu, Fridrika Hardardottir, Jody L. Baron, Charles A. Janeway, Jr., and Richard A. Flavell
Science 27 September 1996: 1864-1867.
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Dynamics of Ongoing Activity: Explanation of the Large Variability in Evoked Cortical Responses

Amos Arieli, Alexander Sterkin, Amiram Grinvald, and Ad Aertsen
Science 27 September 1996: 1868-1871.
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Temporal Hierarchical Control of Singing in Birds

Albert C. Yu and Daniel Margoliash
Science 27 September 1996: 1871-1875.
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Conformational States of the Nuclear Pore Complex Induced by Depletion of Nuclear Ca²⁺ Stores

Carmen Perez-Terzic, Jason Pyle, Marisa Jaconi, Lisa Stehno-Bittel, and David E. Clapham
Science 27 September 1996: 1875-1877.
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Technical Comments

 Sm-Nd Isotopic Data and Earth's Evolution

S. Moorbath, M. J. Whitehouse;, S. A. Bowring, and T. Housh
Science 27 September 1996: 1878-1879.

 Sm-Nd Isotopic Data and Earth's Evolution

S. Moorbath and M. J. Whitehouse
Science 27 September 1996: 1878.
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 Response: Sm-Nd Isotopic Data and Earth's Evolution

Samuel A. Bowring and Todd Housh
Science 27 September 1996: 1878-1879.
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