Articles

 THIS WEEK IN SCIENCE

Science 9 September 1994: 1505.
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 Risk assessments of low-level exposures

PH Abelson
Science 9 September 1994: 1507.
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 Genetic testing

JA Lowden
Science 9 September 1994: 1509-1510.
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 Biodiversity questions

PR Epstein and GP Chikwenhere
Science 9 September 1994: 1510.
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 Mechanism of scrapie replication

PT Lansbury
Science 9 September 1994: 1510.
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 Genetic testing

JE Cleaver
Science 9 September 1994: 1510-1511.
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 Protein configurations

JE Blalock
Science 9 September 1994: 1511.
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 Protein Configurations

J. Edwin Blalock
Science 9 September 1994: 1511.
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Corrections and Clarifications

Science 9 September 1994: 1511.
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 SCIENCESCOPE

Science 9 September 1994: 1515.
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 NSF gears up for a building boom

J Mervis
Science 9 September 1994: 1516-1518.
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 USDA Holds Up Grants to Make a Political Point

Eliot Marshall
Science 9 September 1994: 1518-1519.
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 EPA campaigns for safer chemicals

F Flam
Science 9 September 1994: 1519.
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 Agreements Set Rules of the Road for Global Collaboration

Robert F. Service
Science 9 September 1994: 1520-1521.
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 Ecologists Draft Plan to Dig in the Dirt

Peter Aldhous
Science 9 September 1994: 1521.
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 Triggering the first line of defense

RF Service
Science 9 September 1994: 1522-1524.
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 Microscopy. A new way of seeing proteins in motion

J Kaiser
Science 9 September 1994: 1525.
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 Tuna Stocks: East Meets West

Constance Holden
Science 9 September 1994: 1525-1526.
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Astronomers Gossip About The (Cosmic) Neighborhood

Ray Jayawardhana
Science 9 September 1994: 1526-1527.
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 Climate Modeling's Fudge Factor Comes Under Fire

Richard A. Kerr
Science 9 September 1994: 1528.
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 Eight Get Medal of Science

Science 9 September 1994: 1529.
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 Diet Chemistry

Science 9 September 1994: 1529.
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 Recycling Elephants

Science 9 September 1994: 1529.
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 Confluence of Interest

Science 9 September 1994: 1529.
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 Which Whales Are Hunted? A Molecular Genetic Approach to Monitoring Whaling

C. S. Baker and S. R. Palumbi
Science 9 September 1994: 1538-1539.
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 Thumbs up for our early ancestors

LC Aiello
Science 9 September 1994: 1540-1541.
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 Attractive axon guidance molecules

H Baier and F Bonhoeffer
Science 9 September 1994: 1541-1542.
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First Images of Asteroid 243 Ida

M. J. S. Belton, C. R. Chapman, J. Veverka, K. P. Klaasen, A. Harch, R. Greeley, R. Greenberg, J. W. Head, III, A. McEwen, D. Morrison, P. C. Thomas, M. E. Davies, M. H. Carr, G. Neukum, F. P. Fanale, D. R. Davis, C. Anger, P. J. Gierasch, A. P. Ingersoll, and C. B. Pilcher
Science 9 September 1994: 1543-1547.
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Catastrophes, Phase Shifts, and Large-Scale Degradation of a Caribbean Coral Reef

Terence P. Hughes
Science 9 September 1994: 1547-1551.
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Simultaneous Observation of Columnar Defects and Magnetic Flux Lines in High-Temperature Bi₂Sr₂CaCu₂O₈ Superconductors

Hongjie Dai, Seokwon Yoon, Jie Liu, Ramesh C. Budhani, and Charles M. Lieber
Science 9 September 1994: 1552-1555.
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Lattice location of trace elements within minerals and at their surfaces with X-ray standing waves

Y Qian, NC Sturchio, RP Chiarello, PF Lyman, TL Lee, and MJ Bedzyk
Science 9 September 1994: 1555-1557.
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Reduction of Permeability in Granite at Elevated Temperatures

Diane E. Moore, David A. Lockner, and James D. Byerlee
Science 9 September 1994: 1558-1561.
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Grain Size—Dependent Alteration and the Magnetization of Oceanic Basalts

Dennis V. Kent and Jeff Gee
Science 9 September 1994: 1561-1563.
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Rapid Emplacement of Young Oceanic Lithosphere: Argon Geochronology of the Oman Ophiolite

Bradley R. Hacker
Science 9 September 1994: 1563-1565.
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Milankovitch Forcing of the Last Interglacial Sea Level

Thomas J. Crowley and Kwang-Yul Kim
Science 9 September 1994: 1566-1568.
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Carbon Dioxide Supersaturation in the Surface Waters of Lakes

Jonathan J. Cole, Nina F. Caraco, George W. Kling, and Timothy K. Kratz
Science 9 September 1994: 1568-1570.
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Fossil evidence for early hominid tool use

RL Susman
Science 9 September 1994: 1570-1573.
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Requirement of transcription factor PU.1 in the development of multiple hematopoietic lineages

EW Scott, MC Simon, J Anastasi, and H Singh
Science 9 September 1994: 1573-1577.
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Direct observation of enzyme activity with the atomic force microscope

M Radmacher, M Fritz, HG Hansma, and PK Hansma
Science 9 September 1994: 1577-1579.
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Detection of endogenous malondialdehyde-deoxyguanosine adducts in human liver

AK Chaudhary, M Nokubo, GR Reddy, SN Yeola, JD Morrow, IA Blair, and LJ Marnett
Science 9 September 1994: 1580-1582.
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Control of angiogenesis in fibroblasts by p53 regulation of thrombospondin-1

KM Dameron, OV Volpert, MA Tainsky, and N Bouck
Science 9 September 1994: 1582-1584.
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Mutations in aquaporin-1 in phenotypically normal humans without functional CHIP water channels

GM Preston, BL Smith, ML Zeidel, JJ Moulds, and P Agre
Science 9 September 1994: 1585-1587.
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Reduced rate of disease development after HIV-2 infection as compared to HIV-1

R Marlink, P Kanki, I Thior, K Travers, G Eisen, T Siby, I Traore, CC Hsieh, MC Dia, EH Gueye, and al. et
Science 9 September 1994: 1587-1590.
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Analysis of sequence transfers resembling gene conversion in a mouse antibody transgene

B Xu and E Selsing
Science 9 September 1994: 1590-1593.
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Involvement of nitric oxide in the elimination of a transient retinotectal projection in development

HH Wu, CV Williams, and SC McLoon
Science 9 September 1994: 1593-1596.
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Activation of the sphingomyelin cycle through the low-affinity neurotrophin receptor

RT Dobrowsky, MH Werner, AM Castellino, MV Chao, and YA Hannun
Science 9 September 1994: 1596-1599.
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 Entropic elasticity of lambda-phage DNA

C Bustamante, JF Marko, ED Siggia, and S Smith
Science 9 September 1994: 1599-1600.
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 Explicit and implicit learning and maps of cortical motor output

MA Stadler
Science 9 September 1994: 1600-1601.
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 Response

Alvaro Pascual-Leone, Jordan Grafman, and Mark Hallett
Science 9 September 1994: 1601.
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 The Statistics of HIV

Ira M. Longini, Jr.
Science 9 September 1994: 1602-1603.
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 Vignettes: Retrospective on Washington

Science 9 September 1994: 1603.
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 Lowell's Venture

John Lankford
Science 9 September 1994: 1604.
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 Other Books of Interest

Katherine Livingston
Science 9 September 1994: 1604-1605.
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 Other Books of Interest

Katherine Livingston
Science 9 September 1994: 1605.
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Updating and Correction

Science 9 September 1994: 1605.
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 PRODUCTS & MATERIALS

Science 9 September 1994: 1606.
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