Movement: Molecular to Robotic

On the Move

Lisa Chong, Elizabeth Culotta, and Andrew Sugden
Science 7 April 2000: 79.
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News

Biologists and Engineers Create a New Generation of Robots That Imitate Life

Gary Taubes
Science 7 April 2000: 80-83.
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Better Than Nature Made It

Gary Taubes
Science 7 April 2000: 81.
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Making a Robot Lobster Dance

Gary Taubes
Science 7 April 2000: 82.
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In Nature, Animals That Stop and Start Win the Race

Elizabeth Pennisi
Science 7 April 2000: 83-85.
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Tracking the Movements That Shape an Embryo

Gretchen Vogel
Science 7 April 2000: 86-87.
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Neural Crest's Joyride Through the Embryo

Gretchen Vogel
Science 7 April 2000: 87.
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Reviews

The Way Things Move: Looking Under the Hood of Molecular Motor Proteins

Ronald D. Vale and Ronald A. Milligan
Science 7 April 2000: 88-95.
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Motility Powered by Supramolecular Springs and Ratchets

L. Mahadevan and P. Matsudaira
Science 7 April 2000: 95-99.
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How Animals Move: An Integrative View

Michael H. Dickinson, Claire T. Farley, Robert J. Full, M. A. R. Koehl, Rodger Kram, and Steven Lehman
Science 7 April 2000: 100-106.
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This Week in Science

Editor summaries of this week's papers.
Science 7 April 2000: 9.
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Editorial:
Stop Censuring the Census

Brooks Hanson and Floyd Bloom
Science 7 April 2000: 53.
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Editors' Choice

Highlights of the recent literature.
Science 7 April 2000: 13.
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NetWatch

Best of the Web in science.
Science 7 April 2000: 7.
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 NEW PRODUCTS

Science 7 April 2000: 167-168.

News of the Week

BIOMEDICAL RESEARCH:
Study of HIV Transmission Sparks Ethics Debate

Gretchen Vogel
Science 7 April 2000: 22-23.
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ECOLOGY:
Five Researchers Die in Boating Accident

David Malakoff
Science 7 April 2000: 23.
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ASTROPHYSICS:
New Extrasolar Planets Hint at More to Come

Charles Seife
Science 7 April 2000: 23-25.
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BIOMEDICAL RESEARCH:
AIDS Research Head to Retire From NIH

Jon Cohen
Science 7 April 2000: 25-26.
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ACADEMIC EMPLOYMENT:
Jury Awards $545,000 in Stanford Case

Robert F. Service
Science 7 April 2000: 26.
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ACADEMIC EMPLOYMENT:
UCSF Researchers Leave, Charging Bias

Marcia Barinaga
Science 7 April 2000: 26-27.
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BIOMEDICINE:
Hazel Trees Offer New Source of Cancer Drug

Robert F. Service
Science 7 April 2000: 27-28.
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TAIWAN:
Lee to Remain as Academy President

Dennis Normile
Science 7 April 2000: 28.
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BIOCHEMISTRY:
Chemical Tags Speed Delivery Into Cells

Robert F. Service
Science 7 April 2000: 28-29.
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TV CRITIQUE:
Dinosaur Docudrama Blends Fact, Fantasy

Andrew Watson and Erik Stokstad
Science 7 April 2000: 29-31.
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ScienceScope

Science 7 April 2000: 25.
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Random Samples

Science 7 April 2000: 43.
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News Focus

SPACE SCIENCE:
'Faster, Cheaper, Better' on Trial

Andrew Lawler
Science 7 April 2000: 32-34.
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SPACE SCIENCE:
NASA Returns to the Drawing Board to Plan Next Wave of Mars Missions

Andrew Lawler
Science 7 April 2000: 33.
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CONSERVATION:
Bringing Science to the National Parks

Jocelyn Kaiser
Science 7 April 2000: 34-37.
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GENETICS:
Uphill Battle to Honor Monk Who Demystified Heredity

Robert Koenig
Science 7 April 2000: 37-39.
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GENETICS:
Was Lamarck Just a Little Bit Right?

Michael Balter
Science 7 April 2000: 38.
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MENTAL HEALTH:
Global Survey Examines Impact of Depression

Constance Holden
Science 7 April 2000: 39-40.
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NSF SCHOLARSHIPS:
Demand for Tech Workers Benefits Undergraduates

Jeffrey Mervis
Science 7 April 2000: 40-41.
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Letters

This Week's Letters

Science 7 April 2000: 55.
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 From Cannon Balls to Yeast Cells

Wilfred N. Arnold
Science 7 April 2000: 55.
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 Background on Bruno

David E. Fisher
Science 7 April 2000: 55.
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 HIV-1 Nomenclature Proposal

D. L. Robertson, J. P. Anderson, J. A. Bradac, J. K. Carr, B. Foley, R. K. Funkhouser, F. Gao, B. H. Hahn, M. L. Kalish, C. Kuiken, G. H. Learn, T. Leitner, F. McCutchan, S. Osmanov, M. Peeters, D. Pieniazek, M. Salminen, P. M. Sharp, S. Wolinsky, and B. Korber
Science 7 April 2000: 55.
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 Traces of Symmetric Chaos

Ian Stewart
Science 7 April 2000: 55.
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 Scientists at Brookhaven

Alec Baldwin
Science 7 April 2000: 55.
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 CORRECTIONS AND CLARIFICATIONS

Science 7 April 2000: 55.
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Books et al.

MATHEMATICS:
Connections Through a Matrix

Herbert S. Wilf
Science 7 April 2000: 61.
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ZOOLOGY:
Fishing Stories

Axel Meyer
Science 7 April 2000: 61-62.
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 Browsings

Science 7 April 2000: 62.
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 Books Received

Science 7 April 2000: 62.

Essays on Science and Society

ESSAYS ON SCIENCE AND SOCIETY:
Intimations of Immortality

John Harris
Science 7 April 2000: 59.
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Perspectives

STRUCTURAL BIOLOGY:
Unraveling a Membrane Protein

Jeffrey G. Forbes and George H. Lorimer
Science 7 April 2000: 63-64.
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ASTRONOMY:
New Stars on the Block

Ray Jayawardhana
Science 7 April 2000: 64-65.
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NEUROBIOLOGY:
Enhanced: Receptors as Kissing Cousins

Graeme Milligan
Science 7 April 2000: 65-67.
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PALEOCLIMATE:
"Frozen" Methane Escapes from the Sea Floor

Thomas Blunier
Science 7 April 2000: 68-69.
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 DEVELOPMENT:
Nota Bene: Awakening Aurora

Orla Smith
Science 7 April 2000: 69.
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Research Article

Structure of the S15,S6,S18-rRNA Complex: Assembly of the 30S Ribosome Central Domain

Sultan C. Agalarov, G. Sridhar Prasad, Peter M. Funke, C. David Stout, and James R. Williamson
Science 7 April 2000: 107-112.
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Reports

Monolithic Microfabricated Valves and Pumps by Multilayer Soft Lithography

Marc A. Unger, Hou-Pu Chou, Todd Thorsen, Axel Scherer, and Stephen R. Quake
Science 7 April 2000: 113-116.
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Chain Mobility in the Amorphous Region of Nylon 6 Observed under Active Uniaxial Deformation

Leslie S. Loo, Robert E. Cohen, and Karen K. Gleason
Science 7 April 2000: 116-119.
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Low (Sub-1-Volt) Halfwave Voltage Polymeric Electro-optic Modulators Achieved by Controlling Chromophore Shape

Yongqiang Shi, Cheng Zhang, Hua Zhang, James H. Bechtel, Larry R. Dalton, Bruce H. Robinson, and William H. Steier
Science 7 April 2000: 119-122.
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Dilational Processes Accompanying Earthquakes in the Long Valley Caldera

Douglas S. Dreger, Hrvoje Tkali, and Malcolm Johnston
Science 7 April 2000: 122-125.
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Nonbiological Fractionation of Iron Isotopes

A. D. Anbar, J. E. Roe, J. Barling, and K. H. Nealson
Science 7 April 2000: 126-128.
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Carbon Isotopic Evidence for Methane Hydrate Instability During Quaternary Interstadials

James P. Kennett, Kevin G. Cannariato, Ingrid L. Hendy, and Richard J. Behl
Science 7 April 2000: 128-133.
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Sink or Swim: Strategies for Cost-Efficient Diving by Marine Mammals

Terrie M. Williams, R. W. Davis, L. A. Fuiman, J. Francis, B. J. Le Boeuf, M. Horning, J. Calambokidis, and D. A. Croll
Science 7 April 2000: 133-136.
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Identification of a Coordinate Regulator of Interleukins 4, 13, and 5 by Cross-Species Sequence Comparisons

G. G. Loots, R. M. Locksley, C. M. Blankespoor, Z. E. Wang, W. Miller, E. M. Rubin, and K. A. Frazer
Science 7 April 2000: 136-140.
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Specialized Fatty Acid Synthesis in African Trypanosomes: Myristate for GPI Anchors

Yasu S. Morita, Kimberly S. Paul, and Paul T. Englund
Science 7 April 2000: 140-143.
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Unfolding Pathways of Individual Bacteriorhodopsins

F. Oesterhelt, D. Oesterhelt, M. Pfeiffer, A. Engel, H. E. Gaub, and D. J. Müller
Science 7 April 2000: 143-146.
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Specification of Drosophila Hematopoietic Lineage by Conserved Transcription Factors

Tim Lebestky, Ting Chang, Volker Hartenstein, and Utpal Banerjee
Science 7 April 2000: 146-149.
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Positioning of Longitudinal Nerves in C. elegans by Nidogen

Seonhee Kim and William G. Wadsworth
Science 7 April 2000: 150-154.
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Receptors for Dopamine and Somatostatin: Formation of Hetero-Oligomers with Enhanced Functional Activity

Magalie Rocheville, Daniela C. Lange, Ujendra Kumar, Shutish C. Patel, Ramesh C. Patel, and Yogesh C. Patel
Science 7 April 2000: 154-157.
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Technical Comments

 Serotonin and the Therapeutic Effects of Ritalin

Nora D. Volkow, S. John Gatley, Joanna S. Fowler, Gene-Jack Wang, Jim Swanson;, Raul R. Gainetdinov, William C. Wetsel, and Marc G. Caron;
Science 7 April 2000: 11.
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