Articles

 This Week in SCIENCE

RUTH LEVY GUYER
Science 23 August 1991: 831.
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 Resources of Plant Germplasm

PHILIP H. ABELSON
Science 23 August 1991: 833.
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 Women lab heads

M Freistadt
Science 23 August 1991: 834.
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 Shaking the family tree

GN van Vark and A Bilsborough
Science 23 August 1991: 834.
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 EC Biotechnology Policy

STEPHEN COONEY
Science 23 August 1991: 834-836.
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 Support for Jenny Harrison

PATRICIA ST. LAWRENCE
Science 23 August 1991: 836.
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Erratum

Science 23 August 1991: 836.
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Erratum

Science 23 August 1991: 836.
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 The End of Mandatory Retirement for Tenured Faculty

ALBERT REES and SHARON P. SMITH
Science 23 August 1991: 838-839.
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 SCIENCESCOPE

Science 23 August 1991: 841.
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 Get-the-lead-out guru challenged

J Palca
Science 23 August 1991: 842-844.
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 Boston loses 1992 AIDS meeting

M Hoffman
Science 23 August 1991: 845.
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 Boston Loses 1992 AIDS Meeting

MICHELLE HOFFMAN
Science 23 August 1991: 845.
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 Jawboning prehistory

A Gibbons
Science 23 August 1991: 846.
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 Has Challenger Knocked Out Galileo?

ANN GIBBONS
Science 23 August 1991: 846-847.
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 Policy-making: getting better data

DP Hamilton
Science 23 August 1991: 847.
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 Small Is Beautiful for University Space Outfit

JANE BIRD
Science 23 August 1991: 848-849.
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 In Search of a Free Launch

JANE BIRD
Science 23 August 1991: 849.
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 Post-mortem on Storb resignation

DP Hamilton
Science 23 August 1991: 850.
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 A Reprieve for MIT's Magnet Lab

DAVID P. HAMILTON
Science 23 August 1991: 850.
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 A Changing of the Guards

JOSEPH. PALCA
Science 23 August 1991: 850.
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 Gene Zapping

Science 23 August 1991: 851.
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 The Case of the Missing Milkweed

Science 23 August 1991: 851.
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 Searching for the Perfect Fit

Science 23 August 1991: 851.
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 African Research Waning

Science 23 August 1991: 851.
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 Forecasting the global AIDS epidemic

E Culotta
Science 23 August 1991: 852-854.
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 The Education of Silicon Linguists

RICHARD STONE
Science 23 August 1991: 854-855.
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 Speculating in Precious Computronium

IVAN AMATO
Science 23 August 1991: 856-857.
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 New clue found to Alzheimer's

J Marx
Science 23 August 1991: 857-858.
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 Quantum Cryptography's Only Certainty: Secrecy

FAYE FLAM
Science 23 August 1991: 858.
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 Sigma factor relatives in eukaryotes

JA Jaehning
Science 23 August 1991: 859.
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 Declining Amphibian Populations

DAVID B. WAKE
Science 23 August 1991: 860.
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Laser Manipulation of Atoms and Particles

STEVEN CHU
Science 23 August 1991: 861-866.
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Ex Situ Conservation of Plant Genetic Resources: Global Development and Environmental Concerns

JOEL I. COHEN, J. TREVOR WILLIAMS, DONALD L. PLUCKNETT, and HENRY SHANDS
Science 23 August 1991: 866-872.
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Atomic structure of acetylcholinesterase from Torpedo californica: a prototypic acetylcholine-binding protein

JL Sussman, M Harel, F Frolow, C Oefner, A Goldman, L Toker, and I Silman
Science 23 August 1991: 872-879.
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Impact-Induced Cleaving and Melting of Alkali-Halide Nanocrystals

RAINER D. BECK, PAMELA ST. JOHN, MARGIE L. HOMER, and ROBERT L. WHETTEN
Science 23 August 1991: 879-883.
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¹³C NMR Spectroscopy of K_xC₆₀: Phase Separation, Molecular Dynamics, and Metallic Properties

R. TYCKO, G. DABBAGH, M. J. ROSSEINSKY, D. W. MURPHY, R. M. FLEMING, A. P. RAMIREZ, and J. C. TULLY
Science 23 August 1991: 884-886.
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(Rb_xK₁–x)₃C₆₀ Superconductors: Formation of a Continuous Series of Solid Solutions

CHIA-CHUN CHEN, STEPHEN P. KELTY, and CHARLES M. LIEBER
Science 23 August 1991: 886-888.
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Interpretation of Snow-Climate Feedback as Produced by 17 General Circulation Models

R. D. CESS, G. L. POTTER, M. -H. ZHANG, J. -P. BLANCHET, S. CHALITA, R. COLMAN, D. A. DAZLICH, A. D. DEL GENIO, V. DYMNIKOV, V. GALIN, D. JERRETT, E. KEUP, A. A. LACIS, H. LE TREUT, X. -Z. LIANG, J. -F. MAHFOUF, B. J. MCAVANEY, V. P. MELESHKO, J. F. B. MITCHELL, J. -J. MORCRETTE, P. M. NORRIS, D. A. RANDALL, L. RIKUS, E. ROECKNER, J. -F. ROYER, U. SCHLESE, D. A. SHEININ, J. M. SLINGO, A. S. SOKOLOV, K. E. TAYLOR, W. M. WASHINGTON, R. T. WETHERALD, and I. YAGAI
Science 23 August 1991: 888-892.
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Declining Amphibian Populations: The Problem of Separating Human Impacts from Natural Fluctuations

JOSEPH H. K. PECHMANN, DAVID E. SCOTT, RAYMOND D. SEMLITSCH, JANALEE P. CALDWELL, LAURIE J. VITT, and J. WHITFIELD GIBBONS
Science 23 August 1991: 892-895.
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A Polypeptide from Tomato Leaves Induces Wound-Inducible Proteinase Inhibitor Proteins

GREGORY PEARCE, DANIEL STRYDOM, SCOTT JOHNSON, and CLARENCE A. RYAN
Science 23 August 1991: 895-897.
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Evidence of lactate dehydrogenase-B allozyme effects in the teleost, Fundulus heteroclitus

L DiMichele, KT Paynter, and DA Powers
Science 23 August 1991: 898-900.
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Related RNA polymerase-binding regions in human RAP30/74 and Escherichia coli sigma 70

S McCracken and J Greenblatt
Science 23 August 1991: 900-902.
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Requirement for positive selection of gamma delta receptor-bearing T cells

FB Wells, SJ Gahm, SM Hedrick, JA Bluestone, A Dent, and LA Matis
Science 23 August 1991: 903-905.
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Targets for cell cycle arrest by the immunosuppressant rapamycin in yeast

J Heitman, NR Movva, and MN Hall
Science 23 August 1991: 905-909.
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Factor XI activation in a revised model of blood coagulation

D Gailani and GJ Broze, Jr
Science 23 August 1991: 909-912.
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Stimulation of protein tyrosine phosphorylation by NMDA receptor activation

H Bading and ME Greenberg
Science 23 August 1991: 912-914.
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 Proliferative breast disease: diagnosis and implications

DL Page and WD Dupont
Science 23 August 1991: 915-916.
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 Proliferative Breast Disease: Diagnosis and Implication

DAVID L. PAGE and WILLIAM D. DUPONT
Science 23 August 1991: 915-916.
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 Critical Velocity of Stick-Slip Motion

MARK O. ROBBINS and PETER A. THOMPSON
Science 23 August 1991: 916.
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 Scientific Adventuresses

NANCY G. SLACK
Science 23 August 1991: 917-918.
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 Underrepresentations

EVELYNN M. HAMMONDS
Science 23 August 1991: 919.
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 Some Other Books of Interest

K. L.
Science 23 August 1991: 919.
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 Books Received

Science 23 August 1991: 920.
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 Products & Materials

Science 23 August 1991: 921.
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