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Science, New Series, Vol. 253, No. 5015, Jul. 5, 1991


Previous Issue: New Series, Vol. 252, No. 5014, Jun. 28, 1991
Next Issue: New Series, Vol. 253, No. 5016, Jul. 12, 1991


Front Matter (12 pp.)
The Handling of Leaked Information, p. 9
Daniel E. Koshland, Jr.


Policy Forum
Accounting for America's Uncounted and Miscounted, pp. 12-15
Kirk M. Wolter


Letters
Triplex RNA, p. 17
Alexander Rich; David R. Davies; Gary Felsenfeld
Separate NSF Directorates, p. 17
Howard J. Silver; David Johnson; Lewis P. Lipsett; Robert J. P. Hauck; Ronald F. Abler; Frederick J. Newmeyer; William V. D'Antonio
New Drug Applications, p. 17
Gerald F. Meyer; John J. Newton


ScienceScope, p. 19
David P. Hamilton


News and Comment
The Patent Game: Raising the Ante, pp. 20-22+23+24
Eliot Marshall
Can Electronic Property Be Protected?, p. 23
David P. Hamilton
Baltimore Case-In Brief, pp. 24-25
David P. Hamilton
New "China Syndrome" Puzzle, p. 26
Ann Gibbons
UK Cold War Warriors Out in the Cold?, pp. 26-27
Jane Bird


Briefings
Shooing the Screwworm Fly, p. 28
Faye Flam
Better Dead in Lead, p. 28
Faye Flam
Brotherhood of Lions, p. 28
Faye Flam
A Brighter Forecast from Kuwait, pp. 28-29
Faye Flam
U.S. Eases the Pressure on RU-486, p. 29
Faye Flam
Health Care: Teens Can Go It Alone, p. 29
Faye Flam
Essence of a Smile, p. 29
Faye Flam


Research News
The High Side of Gravity, pp. 30-32
Ivan Amato
Three Li'l Pigs and the Hunt for Blood Substitutes, pp. 32-34
Anne Simon Moffat
Engineers Open a Dialogue With Neurons, p. 34
Ivan Amato
Early Bird Threatens Archaeopteryx's Perch, p. 35
Alun Anderson
Holy Phylogeny! Did Bats Evolve Twice?, p. 36
Billy Goodman


Reconstruction and Future Trends of the AIDS Epidemic in the United States, pp. 37-42
Ron Brookmeyer

Celestial Mechanics on a Microscopic Scale, pp. 42-48
T. Uzer; David Farrelly; John A. Milligan; Paul E. Raines; Joel P. Skelton

p53 Mutations in Human Cancers, pp. 49-53
Monica Hollstein; David Sidransky; Bert Vogelstein; Curtis C. Harris


Research Articles
Global Suppression of Protein Folding Defects and Inclusion Body Formation, pp. 54-58
Anna Mitraki; Bentley Fane; Cameron Haase-Pettingell; Julian Sturtevant; Jonathan King
The Receptor for Ciliary Neurotrophic Factor, pp. 59-63
Samuel Davis; Thomas H. Aldrich; David M. Valenzuela; Vivien Wong; Mark E. Furth; Stephen P. Squinto; George D. Yancopoulos


Reports
Top Predators in the Southern Ocean: A Major Leak in the Biological Carbon Pump, pp. 64-66
M. E. Huntley; M. D. G. Lopez; D. M. Karl
Evolution of Pollen Morphology, pp. 66-68
Isabelle Dajoz; Irène Till-Bottraud; Pierre-Henri Gouyon
Elimination of Two Reef-Building Hydrocorals Following the 1982-83 El Niño Warming Event, pp. 69-71
P. W. Glynn; W. H. de Weerdt
Identification of the Envelope V3 Loop as the Primary Determinant of Cell Tropism in HIV-1, pp. 71-74
Stephen S. Hwang; Terence J. Boyle; H. Kim Lyerly; Bryan R. Cullen
The ras Oncoprotein and M-Phase Activity, pp. 74-76
Ira Daar; Angel R. Nebreda; Nelson Yew; Philip Sass; Richard Paules; Eugenio Santos; Michael Wigler; George F. Vande Woude
Requirement of Nuclear Prolactin for Interleukin-2-Stimulated Proliferation of T Lymphocytes, pp. 77-79
Charles V. Clevenger; Scott W. Altmann; Michael B. Prystowsky
Deregulation of a Homeobox Gene, HOX11, by the t(10;14) in T Cell Leukemia, pp. 79-82
Masahiko Hatano; Charles W. M. Roberts; Mark Minden; William M. Crist; Stanley J. Korsmeyer
Human Ultrasonic Speech Perception, pp. 82-85
Martin L. Lenhardt; Ruth Skellett; Peter Wang; Alex M. Clarke
Visual Instruction of the Neural Map of Auditory Space in the Developing Optic Tectum, pp. 85-87
Eric I. Knudsen; Michael S. Brainard


Technical Comment
Understanding Hydrophobic Behavior, p. 88
Judith Herzfeld


Book Reviews
Biotechnology and the Environment, pp. 89-90
Introduction of Genetically Modified Organisms into the Environment.
Harold A. Mooney; Giorgio Bernardi
Risk Assessment in Genetic Engineering.
Morris A. Levin; Harlee S. Strauss
Assessing Ecological Risks of Biotechnology.
Lev R. Ginzburg
Review author[s]: Marjorie A. Hoy
Reprints of Books Previously Reviewed, p. 90
Books Received, p. 90


Back Matter (18 pp.)

Previous Issue: New Series, Vol. 252, No. 5014, Jun. 28, 1991
Next Issue: New Series, Vol. 253, No. 5016, Jul. 12, 1991



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