Science/AAAS | Table of Contents: 25 April 1997; 276 (5312)

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About the Cover

25 April 1997
Vol 276, Issue 5312, Pages 497-644

This Week in Science
Editorial
News and Comment
Research News

Letters
Policy Forum
Perspectives

Articles
Research Articles
Reports

For all checked items

This Week in Science: Editor summaries of this week's papers.
Science 25 April 1997: 505.
|Full Text »

Editorial:
Improved Fossil Energy Technology: Philip H. Abelson
Science 25 April 1997: 511.
Summary »|

Book Reviews
Amniote Origins, reviewed by J. A. Ruben * The Neurobiology of an Insect Brain, S. N. Zill * Browsings: Science 25 April 1997: 541.
AAAS News & Notes: Science 25 April 1997: 618.
Products & Materials: Science 25 April 1997: 619.

News and Comment

AIDS Trials Ethics Questioned: Jon Cohen
Science 25 April 1997: 520-523.
Summary »| Full Text »|
Publishing Sensitive Data: Who Calls the Shots?: Science 25 April 1997: 523.
Science and Commerce: Secrecy Dispute Pits Brown Researcher Against Company: Wade Roush
Science 25 April 1997: 523-525.
Summary »| Full Text »|
Science and Commerce: Journals Joust Over Conflict-of-Interest Rules: SCIENTIFIC COMMUNITY
Science 25 April 1997: 523-525.
Summary »| Full Text »|
Science and Commerce: Secretiveness Found Widespread in Life Sciences: SCIENTIFIC COMMUNITY
Science 25 April 1997: 523-525.
Summary »| Full Text »|
Science and Commerce: Long-Suppressed Study Finally Sees Light of Day: Gretchen Vogel
Science 25 April 1997: 523-525.
Summary »| Full Text »|
: Science 25 April 1997: 525.
Earthquake Prediction: Warnings Precede Chinese Temblors: Li Hui and Richard A. Kerr
Science 25 April 1997: 526.
Summary »| Full Text »|
Genetics: Merck Gives Researchers Knockout Deal: Elizabeth Pennisi and Richard A. Kerr
Science 25 April 1997: 527.
Summary »| Full Text »|
Plasma Physics: Report Says ITER Ignition Not Assured: Andrew Lawler
Science 25 April 1997: 527.
Summary »| Full Text »|

ScienceScope: Science 25 April 1997: 519.
|Full Text »

Random Samples: Science 25 April 1997: 537.
|Full Text »

Research News

Cell Biology: The Telomerase Picture Fills In: Marcia Barinaga
Science 25 April 1997: 528-529.
Summary »| Full Text »|
Gamma-Ray Bursts: Visible 'Source' Teases Observers: James Glanz
Science 25 April 1997: 529-530.
Summary »| Full Text »|
Physics: Doubts Greet Claim of Cosmic Axis: James Glanz
Science 25 April 1997: 530.
Summary »| Full Text »|
Cancer Research: Possible Function Found for Breast Cancer Genes: Jean Marx
Science 25 April 1997: 531-532.
Summary »| Full Text »|
Mathematics: New Test Sizes Up Randomness: Charles Seife
Science 25 April 1997: 532.
Summary »| Full Text »|
Medical Research: New Vaccines May Ward Off Urinary Tract Infections: Robert F. Service
Science 25 April 1997: 533.
Summary »| Full Text »|
Human Genetics: Putative Cancer Gene Shows Up in Development Instead: Wade Roush
Science 25 April 1997: 534-535.
Summary »| Full Text »|
Meeting Briefs: Ideas on Human Origins Evolve At Anthropology Gathering: Science 25 April 1997: 535.
Anthropology: Back to Africa: Ann Gibbons
Science 25 April 1997: 535-536.
Summary »| Full Text »|
Anthropology: Why Life After Menopause?: Ann Gibbons
Science 25 April 1997: 535.
Summary »| Full Text »|
: Science 25 April 1997: 535.

Letters

Location, location: Science 25 April 1997: 513-517.
Summary »|
Misplaced Crabs: Hugh Smith;, John K. Fox;, and John K. Fox;
Science 25 April 1997: 513-517.
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Tritium Supply: Harold M. Agnew
Science 25 April 1997: 513-517.
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Rutherford's Contribution: Alexander Small
Science 25 April 1997: 513-517.
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Endangered Species "Hot Spots": Christopher P. Dunn, Marlin L. Bowles, George B. Rabb, Kris S. Jarantoski;, A. Dobson J. P. Rodriguez W. M. Ehrenfeld, A. Dobson J. P. Rodriguez W. M. Ehrenfeld, A. Dobson J. P. Rodriguez W. M. Ehrenfeld, A. Dobson J. P. Rodriguez W. M. Ehrenfeld, and D. S. Wilcove;
Science 25 April 1997: 513-517.
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Corrections and Clarifications: Science 25 April 1997: 513-517.
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Policy Forum

Current Problems and the Future of Antiretroviral Drug Trials: Joep M. A. Lange
Science 25 April 1997: 548-550.
Abstract »| Full Text »|

Perspectives

Chemistry: Enhanced: Putting Molecules Behind Bars: Steven C. Zimmerman
Science 25 April 1997: 543-544.
Summary »| Full Text »|
Geochemistry and Geophysics: The Rise of Plants and Their Effect on Weathering and Atmospheric CO2: Robert A. Berner
Science 25 April 1997: 544-546.
Summary »| Full Text »|
RNA Events: Ribozymes in Wonderland: Andrew D. Ellington, Michael P. Robertson, and Jim Bull
Science 25 April 1997: 546-547.
Summary »| Full Text »|
Cellular and Molecular Neuroscience: Nota Bene: Seeing the Synapse: Katrina L. Kelner
Science 25 April 1997: 547.
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Articles

U-Th Isotopes in Arc Magmas: Implications for Element Transfer from the Subducted Crust: C. J. Hawkesworth, S. P. Turner, F. McDermott, D. W. Peate, and P. van Calsteren
Science 25 April 1997: 551-555.
Abstract »| Full Text »| PDF »|

Research Articles

Antarctic Tectonics: Constraints From an ERS-1 Satellite Marine Gravity Field: David McAdoo and Seymour Laxon
Science 25 April 1997: 556-561.
Abstract »| Full Text »| PDF »|
Reverse Transcriptase Motifs in the Catalytic Subunit of Telomerase: Joachim Lingner, Timothy R. Hughes, Andrej Shevchenko, Matthias Mann, Victoria Lundblad, and Thomas R. Cech
Science 25 April 1997: 561-567.
Abstract »| Full Text »| PDF »|

Reports

Vesicle-Specific Noble Gas Analyses of "Popping Rock": Implications for Primordial Noble Gases in Earth: Pete Burnard, David Graham, and Grenville Turner
Science 25 April 1997: 568-571.
Abstract »| Full Text »| PDF »|
Climatic Limits on Landscape Development in the Northwestern Himalaya: Nicholas Brozovi $c$ , Douglas W. Burbank, and Andrew J. Meigs
Science 25 April 1997: 571-574.
Abstract »| Full Text »| PDF »|
Nanoporous Molecular Sandwiches: Pillared Two-Dimensional Hydrogen-Bonded Networks with Adjustable Porosity: Victoria A. Russell, Cara C. Evans, Wenjie Li, and Michael D. Ward
Science 25 April 1997: 575-579.
Abstract »| Full Text »| PDF »|
Scanning Single-Electron Transistor Microscopy: Imaging Individual Charges: M. J. Yoo, T. A. Fulton, H. F. Hess, R. L. Willett, L. N. Dunkleberger, R. J. Chichester, L. N. Pfeiffer, and K. W. West
Science 25 April 1997: 579-582.
Abstract »| Full Text »| PDF »|
Early Forest Soils and Their Role in Devonian Global Change: Gregory J. Retallack
Science 25 April 1997: 583-585.
Abstract »| Full Text »| PDF »|
Neurogenesis in Postnatal Rat Spinal Cord: A Study in Primary Culture: Lois J. Kehl, Carolyn A. Fairbanks, Tinna M. Laughlin, and George L. Wilcox
Science 25 April 1997: 586-589.
Abstract »| Full Text »| PDF »|
Control of Inflammation, Cytokine Expression, and Germinal Center Formation by BCL-6: Alexander L. Dent, Arthur L. Shaffer, Xin Yu, David Allman, and Louis M. Staudt
Science 25 April 1997: 589-592.
Abstract »| Full Text »| PDF »|
Activation of Auditory Cortex During Silent Lipreading: Gemma A. Calvert, Edward T. Bullmore, Michael J. Brammer, Ruth Campbell, Steven C. R. Williams, Philip K. McGuire, Peter W. R. Woodruff, Susan D. Iversen, and Anthony S. David
Science 25 April 1997: 593-596.
Abstract »| Full Text »| PDF »|
Repression of c-myc Transcription by Blimp-1, an Inducer of Terminal B Cell Differentiation: Yi Lin, Kwok-kin Wong, and Kathryn Calame
Science 25 April 1997: 596-599.
Abstract »| Full Text »| PDF »|
Maintenance of Acetylcholine Receptor Number by Neuregulins at the Neuromuscular Junction in Vivo: Alfred W. Sandrock, Jr., Stuart E. Dryer, Kenneth M. Rosen, Shai N. Gozani, Rainer Kramer, Lars E. Theill, and Gerald D. Fischbach
Science 25 April 1997: 599-603.
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Identification of $alpha$ -Fodrin as a Candidate Autoantigen in Primary Sjögren's Syndrome: Norio Haneji, Takanori Nakamura, Koji Takio, Kumiko Yanagi, Hiroyuki Higashiyama, Ichiro Saito, Sumihare Noji, Hiromu Sugino, and Yoshio Hayashi
Science 25 April 1997: 604-607.
Abstract »| Full Text »| PDF »|
Prevention of Mucosal Escherichia coli Infection by FimH-Adhesin-Based Systemic Vaccination: Solomon Langermann, Susan Palaszynski, Michelle Barnhart, Gale Auguste, Jerome S. Pinkner, Jeanne Burlein, Philip Barren, Scott Koenig, Simon Leath, C. Hal Jones, and Scott J. Hultgren
Science 25 April 1997: 607-611.
Abstract »| Full Text »| PDF »|
Partitioning of Large and Minichromosomes in Trypanosoma brucei: Klaus Ersfeld and Keith Gull
Science 25 April 1997: 611-614.
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Continuous in Vitro Evolution of Catalytic Function: Martin C. Wright and Gerald F. Joyce
Science 25 April 1997: 614-617.
Abstract »| Full Text »| PDF »|