Articles

 Giant panda paternity

SJ O'Brien, D Goldman, J Knight, HD Moore, DE Wildt, M Bush, RJ Montali, and D Kleiman
Science 16 March 1984: 1127-1128.
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 Ediacaran Fossils

KENNETH E. CASTER
Science 16 March 1984: 1129-1131.
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 Ediacaran Fossils

ROGER LEWIN
Science 16 March 1984: 1131.
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 Acetylene on Titan

DONALD S. MATTESON
Science 16 March 1984: 1131.
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 Acetylene on Titan

JONATHAN I. LUNINE, DAVID J. STEVENSON, and YUK L. YUNG
Science 16 March 1984: 1131.
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 Federal R & D Budget: Guns Versus Butter

F. A. LONG
Science 16 March 1984: 1133.
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Impact Theory of Mass Extinctions and the Invertebrate Fossil Record

Walter Alvarez, Erle G. Kauffman, Finn Surlyk, Luis W. Alvarez, Frank Asaro, and Helen V. Michel
Science 16 March 1984: 1135-1141.
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Hydrogen-Evolving Solar Cells

Adam Heller
Science 16 March 1984: 1141-1148.
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Herbicide-Resistant Mutants from Tobacco Cell Cultures

R. S. Chaleff and T. B. Ray
Science 16 March 1984: 1148-1151.
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 Juarez: an unprecedented radiation accident

E Marshall
Science 16 March 1984: 1152-1154.
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 Soviets Drop Farther Back in Weapons Technology

R. Jeffrey Smith
Science 16 March 1984: 1154.
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 Better Living Through Chemistry?

MARJORIE SUN
Science 16 March 1984: 1154-1155.
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 Dingell warns Reagan on cancer appointments

C Holden
Science 16 March 1984: 1155.
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 Russian Influence in Science Diminishing

CONSTANCE HOLDEN
Science 16 March 1984: 1155.
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 Agent Orange study is like a chameleon

JL Fox
Science 16 March 1984: 1156-1157.
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 VA to study twins

C Holden
Science 16 March 1984: 1157.
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 "Science Shops" Flourish in Europe: Organizations intent on focusing more university research on social problems have gained important political and financial support

DAVID DICKSON
Science 16 March 1984: 1158-1160.
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 Europeans Back Computer Plan

DAVID DICKSON
Science 16 March 1984: 1159.
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 States want stiffer EDB rules

M Sun
Science 16 March 1984: 1160.
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 Does vitamin A prevent cancer?

G Kolata
Science 16 March 1984: 1161.
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 Can Multibond Reactions Be Synchronous?: A maverick theoretician touches off a debate on both synchronicity and the relative efficacies of molecular orbital calculations

THOMAS H. MAUGH, II
Science 16 March 1984: 1162-1163.
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 Computing Without Dissipating Energy: Computers are machines and should be subject to thermodynamics; what is the minimum energy needed for computation?

ARTHUR L. ROBINSON
Science 16 March 1984: 1164-1166.
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 AAAS Annual Meeting New York, 24-29 May 1984: Tours and Special Events

Science 16 March 1984: 1167-1169.
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 Monopoles: Magnetic Monopoles.

JEFFREY A. HARVEY
Science 16 March 1984: 1170.
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 Solar Physics: Weather and Climate Responses to Solar Variations.

W. C. LIVINGSTON
Science 16 March 1984: 1170-1171.
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 Tropical Biology: Costa Rican Natural History.

EGBERT GILES LEIGH, JR.
Science 16 March 1984: 1171-1172.
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 A Maya Site: Coba.

DAVID L. WEBSTER
Science 16 March 1984: 1172-1173.
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 Books Received

Science 16 March 1984: 1173-1204.
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End-Cretaceous Brachiopod Extinctions in the Chalk of Denmark

FINN SURLYK and MARIANNE BAGGE JOHANSEN
Science 16 March 1984: 1174-1177.
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Terminal Cretaceous Extinctions in the Hell Creek Area, Montana: Compatible with Catastrophic Extinction

J. SMIT and S. VAN DER KAARS
Science 16 March 1984: 1177-1179.
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Geologic Framework of Nonmarine Cretaceous-Tertiary Boundary Sites, Raton Basin, New Mexico and Colorado

C. L. PILLMORE, R. H. TSCHUDY, C. J. ORTH, J. S. GILMORE, and J. D. KNIGHT
Science 16 March 1984: 1180-1183.
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The End of the Cretaceous: Sharp Boundary or Gradual Transition?

W. ALVAREZ, L. W. ALVAREZ, F. ASARO, and H. V. MICHEL
Science 16 March 1984: 1183-1186.
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Mass Spawning in Tropical Reef Corals

PETER L. HARRISON, RUSSELL C. BABCOCK, GORDON D. BULL, JAMES K. OLIVER, CARDEN C. WALLACE, and BETTE L. WILLIS
Science 16 March 1984: 1186-1189.
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Phenylalanine transfer RNA: molecular dynamics simulation

SC Harvey, M Prabhakaran, B Mao, and JA McCammon
Science 16 March 1984: 1189-1191.
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Bioassay of solubilized Bacillus thuringiensis var. israelensis crystals by attachment to latex beads

DJ Schnell, MA Pfannenstiel, and KW Nickerson
Science 16 March 1984: 1191-1193.
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The enzymatic synthesis of 5-amino-4-imidazolecarboxamide riboside triphosphate (ZTP)

RL Sabina, EW Holmes, and MA Becker
Science 16 March 1984: 1193-1195.
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Novel viral sequences related to human T-cell leukemia virus in T cells of a seropositive baboon

HG Guo, F Wong-Stall, and RC Gallo
Science 16 March 1984: 1195-1197.
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A transforming ras gene in tumorigenic guinea pig cell lines initiated by diverse chemical carcinogens

S Sukumar, S Pulciani, J Doniger, JA DiPaolo, CH Evans, B Zbar, and M Barbacid
Science 16 March 1984: 1197-1199.
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Isolation, structure, and synthesis of a human seminal plasma peptide with inhibin-like activity

K Ramasharma, MR Sairam, NG Seidah, M Chretien, P Manjunath, PW Schiller, D Yamashiro, and CH Li
Science 16 March 1984: 1199-1202.
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 Health effects of dioxin

TD Sterling
Science 16 March 1984: 1202.
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 Health Effects of Dixon

PHILIP H. ABELSON
Science 16 March 1984: 1202.
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