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Science, New Series, Vol. 237, No. 4813, Jul. 24, 1987


Previous Issue: New Series, Vol. 237, No. 4812, Jul. 17, 1987
Next Issue: New Series, Vol. 237, No. 4814, Jul. 31, 1987


Front Matter (46 pp.)
TPA and PDQ, p. 341
Daniel E. Koshland


Letters
Uranium Enrichment, pp. 349-350
B. Jeanine Hull
Indictment of Soviet Physicist, p. 350
G. C. Vezzoli
Is Female Math Anxiety Real?, p. 350
Sanford L. Segal


News & Comment
Congress Considers Upgrading Labs, pp. 351-352
John Walsh
Corporations on Campus, pp. 353-355
Wayne Biddle
AIDS and Insects, pp. 355-356
William Booth
Some Refuseniks See No Glasnost, pp. 356-357
John Walsh


Briefing
SSC Deadline Extended, p. 357
M.C.
``Greens'' Challenge French Gene Research, p. 357
D.D.
France to Boost Research Spending, p. 357
D.D.


Research News
Who Owns the Human Genome?, pp. 358-361
Leslie Roberts
A Younger Universe is Seen in the Stars, pp. 361-362
M. Mitchell Waldrop
New Tumor Factor May Disrupt Calcium Levels, pp. 363-364
Deborah M. Barnes


Off-Design Performance of Power Plants: An Integrated Gasification Combined-Cycle Example, pp. 379-383
M. R. Erbes; J. N. Phillips; M. S. Johnson; J. Paffenbarger; M. Gluckman; R. H. Eustis

The Shapes of Random Walks, pp. 384-389
Joseph Rudnick; George Gaspari

The 30-Kilodalton Gene Product of Tobacco Mosaic Virus Potentiates Virus Movement, pp. 389-394
Carl M. Deom; Melvin J. Oliver; Roger N. Beachy

Engineering Enzyme Specificity by ``Substrate-Assisted Catalysis'', pp. 394-399
Paul Carter; James A. Wells


Reports
Parallel and Serial Processes in Motion Detection, pp. 400-402
Miri Dick; Shimon Ullman; Dov Sagi
Adipsin: A Circulating Serine Protease Homolog Secreted by Adipose Tissue and Sciatic Nerve, pp. 402-405
Kathleen Sue Cook; Hye Yeong Min; David Johnson; Robert J. Chaplinsky; Jeffrey S. Flier; Clayton R. Hunt; Bruce M. Spiegelman
Severely Impaired Adipsin Expression in Genetic and Acquired Obesity, pp. 405-408
Jeffrey S. Flier; Kathleen Sue Cook; Patricia Usher; Bruce M. Spiegelman
Linear Plasmids of the Bacterium Borrelia burgdorferi Have Covalently Closed Ends, pp. 409-411
Alan G. Barbour; Claude F. Garon
Neuronal pp60 c-src Contains a Six-Amino Acid Insertion Relative to its Non-Neuronal Counterpart, pp. 411-415
Ricardo Martinez; Bernard Mathey-Prevot; André Bernards; David Baltimore
The Molecular Basis of the Sparse Fur Mouse Mutation, pp. 415-417
Gabor Veres; Richard A. Gibbs; Steven E. Scherer; C. Thomas Caskey
Physiological Evidence for Serial Processing in Somatosensory Cortex, pp. 417-420
T. P. Pons; P. E. Garraghty; D. P. Friedman; M. Mishkin
The Fragile X Site in Somatic Cell Hybrids: An Approach for Molecular Cloning of Fragile Sites, pp. 420-423
Stephen T. Warren; Fuping Zhang; Greg R. Licameli; Jeanne F. Peters
Smooth Muscle-Mediated Connective Tissue Remodeling in Pulmonary Hypertension, pp. 423-426
Robert P. Mecham; Loren A. Whitehouse; David S. Wrenn; William C. Parks; Gail L. Griffin; Robert M. Senior; Edmond C. Crouch; Kurt R. Stenmark; Norbert F. Voelkel


Book Reviews
Phylogeny and Coevolution, pp. 441-442
Coevolution and Systematics
A. R. Stone; D. L. Hawksworth
Review author[s]: Douglas J. Futuyma; Junhyong Kim
High Energy Cosmic Photons, p. 442
Gamma-Ray Astronomy
Poolla V. Ramana Murthy; Arnold W. Wolfendale
Review author[s]: Floyd W. Stecker
Ancient Soils, pp. 442-443
Paleosols
V. Paul Wright
Review author[s]: Ronald D. Stieglitz
Ion Transport, pp. 443-444
Proteins of Excitable Membranes
Bertil Hille; Douglas M. Fambrough
Review author[s]: Christopher Miller


Back Matter (21 pp.)

Previous Issue: New Series, Vol. 237, No. 4812, Jul. 17, 1987
Next Issue: New Series, Vol. 237, No. 4814, Jul. 31, 1987



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