Articles

 This Week in Science

RUTH LEVY GUYER
Science 15 September 1989: 1159.
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 The Human—Voyager 2 Collaboration

PHILIP H. ABELSON
Science 15 September 1989: 1161.
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 Sleep research

R Szymusiak, D McGinty, and MB Sterman
Science 15 September 1989: 1165.
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 "Soul-Searching" and China

AVRAM GOLDSTEIN
Science 15 September 1989: 1165.
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 Carelessness, or Good Faith?

HEINRICH K. ERBEN
Science 15 September 1989: 1165-1166.
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 O'Toole's charges

HN Eisen
Science 15 September 1989: 1166-1167.
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 Caldera Unrest

C. G. NEWHALL and D. DZURISIN
Science 15 September 1989: 1167.
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Erratum

Science 15 September 1989: 1167.
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Erratum

Science 15 September 1989: 1167.
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 The missing crystallography data

M Barinaga
Science 15 September 1989: 1179-1181.
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 Help wanted: Director, NIH

BJ Culliton
Science 15 September 1989: 1181.
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 High-Energy Management Stirs Up Energy Research: In his drive to keep R&D programs at the Office of Energy Research productive, Robert O. Hunter, Jr., has shaken up scientists and angered many legislators

MARK CRAWFORD
Science 15 September 1989: 1182-1183.
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 Smithsonian, Indian Leaders Call a Truce: An agreement will result in the reburial of part of the Smithsonian's collection of Native Indian remains

ELIOT MARSHALL
Science 15 September 1989: 1184-1186.
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 Old bones solve new problems

E Marshall
Science 15 September 1989: 1185.
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 White House, Congress Push Computer Plan

MARJORIE SUN
Science 15 September 1989: 1186.
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 In Search of the Plastic Potato: Scientists in the emerging field of biopolymer engineering are aiming to produce bacteria and, eventually, food crops that are genetically tailored to yield a whole new breed of plastics

ROBERT POOL
Science 15 September 1989: 1187-1189.
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 Redesigning Nature's Plastics Factories

ROBERT POOL
Science 15 September 1989: 1188.
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 Say It Again in Plain Algebra: The growing use of computer algebra systems has driven mathematicians to find ways of simplifying the horrendously complex expressions number crunchers sometimes spit out

BARRY A. CIPRA
Science 15 September 1989: 1190-1191.
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 Algebra: A Hotbed of Radicalism

BARRY A. CIPRA
Science 15 September 1989: 1190.
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 Computer-Age Stargazing

M. MITCHELL WALDROP
Science 15 September 1989: 1191.
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 Wistar Cleared by Argentina

CONSTANCE HOLDEN
Science 15 September 1989: 1192.
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 Gupta's Defense

CONSTANCE HOLDEN
Science 15 September 1989: 1192.
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 Saving Madagascar Wildlife

CONSTANCE HOLDEN
Science 15 September 1989: 1192.
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 Amateur Hours on Hubble Telescope

CONSTANCE HOLDEN
Science 15 September 1989: 1192.
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 Cocaine Trends

CONSTANCE HOLDEN
Science 15 September 1989: 1192.
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 Cocaine Trends

CONSTANCE HOLDEN
Science 15 September 1989: 1192.
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History of Meteorites from the Moon Collected in Antarctica

O. EUGSTER
Science 15 September 1989: 1197-1202.
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Experiments with High-Energy Neutrino Beams

J. STEINBERGER
Science 15 September 1989: 1202-1208.
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Visuomotor coordination in reaching and locomotion

AP Georgopoulos and S Grillner
Science 15 September 1989: 1209-1210.
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High-Resolution Microwave Images of Saturn

A. W. GROSSMAN, D. O. MUHLEMAN, and G. L. BERGE
Science 15 September 1989: 1211-1215.
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A Near-Optimum Parallel Planarization Algorithm

YOSHIYASU TAKEFUJI and KUO-CHUN LEE
Science 15 September 1989: 1221-1223.
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Shear Forces in Molecularly Thin Films

MARTIN SCHOEN, CHARLES L. RHYKERD, JR., DENNIS J. DIESTLER, and JOHN H. CUSHMAN
Science 15 September 1989: 1223-1225.
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Molecular structure of DNA by scanning tunneling microscopy

A Cricenti, S Selci, AC Felici, R Generosi, E Gori, W Djaczenko, and G Chiarotti
Science 15 September 1989: 1226-1227.
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Aerosols, Cloud Microphysics, and Fractional Cloudiness

BRUCE A. ALBRECHT
Science 15 September 1989: 1227-1230.
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Evidence for a Heterogeneous Upper Mantle in the Cabo Ortegal Complex, Spain

JACQUES GIRARDEAU, JOSÉ IGNAKI GIL IBARGUCHI, and NEJIB BEN JAMAA
Science 15 September 1989: 1231-1233.
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Targeting of nonexpressed genes in embryonic stem cells via homologous recombination

RS Johnson, M Sheng, ME Greenberg, RD Kolodner, VE Papaioannou, and BM Spiegelman
Science 15 September 1989: 1234-1236.
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Foregut Fermentation in the Hoatzin, a Neotropical Leaf-Eating Bird

ALEJANDRO GRAJAL, STUART D. STRAHL, RODRIGO PARRA, MARIA GLORIA DOMINGUEZ, and ALFREDO NEHER
Science 15 September 1989: 1236-1238.
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Neutrophil Mac-1 and MEL-14 adhesion proteins inversely regulated by chemotactic factors

TK Kishimoto, MA Jutila, EL Berg, and EC Butcher
Science 15 September 1989: 1238-1241.
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T cell receptor gene trans-rearrangements: chimeric gamma-delta genes in normal lymphoid tissues

B Tycko, JD Palmer, and J Sklar
Science 15 September 1989: 1242-1246.
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Activation of bacterial porin gene expression by a chimeric signal transducer in response to aspartate

R Utsumi, RE Brissette, A Rampersaud, SA Forst, K Oosawa, and M Inouye
Science 15 September 1989: 1246-1249.
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Acetylcholine and GABA mediate opposing actions on neuronal chloride channels in crayfish

C Pfeiffer-Linn and RM Glantz
Science 15 September 1989: 1249-1251.
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 A Reasonable Outcome: The Politics of Earthquake Prediction.

DANIEL SERWER
Science 15 September 1989: 1259.
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 Views from Chicago: Memoirs of an Unregulated Economist.

WILLIAM J. BAUMOL
Science 15 September 1989: 1259-1261.
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 Geologic Collisions: Impact Cratering.

KEITH A. HOLSAPPLE
Science 15 September 1989: 1261-1262.
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 Interactions at Sea: Seabirds and Other Marine Vertebrates.

GEORGE L. HUNT, JR.
Science 15 September 1989: 1262.
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 Products & Materials

Science 15 September 1989: 1264.
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