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Science, New Series, Vol. 248, No. 4953, Apr. 20, 1990


Previous Issue: New Series, Vol. 248, No. 4952, Apr. 13, 1990
Next Issue: New Series, Vol. 248, No. 4954, Apr. 27, 1990


Front Matter (19 pp.)
Planetary Fluids, p. 281
R. Brooks Hanson


Perspective
Sodium-Calcium Exchange in Excitable Cells: Fuzzy Space, p. 283
W. Jonathan Lederer; Ernst Niggli; Robert W. Hadley


Letters
Greenland Ice Sheet: Is It Growing or Shrinking?, pp. 288-289
Bruce C. Douglas; Robert E. Cheney; Laury Miller; Russell W. Agreen; William E. Carter; Douglas S. Robertson; H. Jay Zwally; Anita C. Brenner; Judy A. Major; Robert A. Bindschadler; James G. Marsh
Fish, Money, and Science in Puget Sound, pp. 290-291
Charles J. Gagen; John L. Pitts


News and Comment
Stanford Erupts Over Indirect Costs, pp. 292-294
Marcia Barinaga
East Germany Struggles to Clean Its Air and Water, pp. 295-296
Jeremy Cherfas
NIH: The Endless Search, p. 296
Barbara J. Culliton
Scientific Misconduct Cases Revealed, p. 297
Joseph Palca
Bromley Promises Small Science Focus, p. 297
Colin Norman
Gordon & Breach Impanels a Journal Jury, pp. 298-299
Constance Holden
How the United States Stacks Up in Key Technologies, p. 299
Colin Norman


Research News
A Generational Rift in Geophysics, pp. 300-302
Richard A. Kerr
Is AIDS Dementia Due to Increases in Calcium?, p. 303
Ann Gibbons
Polymer Chemists Are Having a ROMP, pp. 304-305
M. Mitchell Waldrop
"Hairy Enzymes" Stay in the Blood, p. 305
Robert Pool


Briefings
Update: RU 486, p. 306
Constance Holden
Math Students Needed, p. 306
Constance Holden
AIDS Meeting: Visas, p. 306
Constance Holden
Ordinary is Beautiful, p. 306
Constance Holden
The Dimmest "Star", p. 307
Constance Holden
Social Science: NSF's Poor Relation, p. 307
Constance Holden
Changing U.S. Demography, p. 307
Constance Holden
Truth in Labelling, p. 307
Constance Holden


Planetary Fluids
Atmospheric Dynamics of the Outer Planets, pp. 308-315
Andrew P. Ingersoll
The Dynamics of the Oceanic Subtropical Gyres, pp. 316-322
Joseph Pedlosky
Scales and Effects of Fluid Flow in the Upper Crust, pp. 323-329
Lawrence M. Cathles III
Fluid Processes in Subduction Zones, pp. 329-337
Simon M. Peacock
Mantle Oxidation State and Its Relationship to Tectonic Environment and Fluid Speciation, pp. 337-345
Bernard J. Wood; L. Taras Bryndzia; Kathleen E. Johnson
Paleomagnetism and the Nature of the Geodynamo, pp. 345-350
R. T. Merrill; P. L. McFadden


Reports
Seismic-Wave Attenuation Associated with Crustal Faults in the New Madrid Seismic Zone, pp. 351-354
R. M. Hamilton; W. D. Mooney
Theory of Spontaneous Vesicle Formation in Surfactant Mixtures, pp. 354-356
S. A. Safran; P. Pincus; David Andelman
Developmental Arrest During Larval Life and Life-Span Extension in a Marine Mollusc, pp. 356-358
S. E. Miller; M. G. Hadfield
Rational Design of Peptide-Based HIV Proteinase Inhibitors, pp. 358-361
Noel A. Roberts; Joseph A. Martin; Derek Kinchington; Anne V. Broadhurst; J. Charles Craig; Ian B. Duncan; Sarah A. Galpin; Balraj K. Handa; John Kay; Antonin Kröhn; Robert W. Lambert; John H. Merrett; John S. Mills; Kevin E. B. Parkes; Sally Redshaw; Alison J. Ritchie; Debra L. Taylor; Gareth J. Thomas; Peter J. Machin
Immunobiology and Pathogenesis of Heptocellular Injury in Hepatitis B Virus Transgenic Mice, pp. 361-364
Takashi Moriyama; Stephane Guilhot; Kathleen Klopchin; Bernard Moss; Carl A. Pinkert; Richard D. Palmiter; Ralph L. Brinster; Osami Kanagawa; Francis V. Chisari
HIV-1 Coat Protein Neurotoxicity Prevented by Calcium Channel Antagonists, pp. 364-367
Evan B. Dreyer; Peter K. Kaiser; Jeffrey T. Offermann; Stuart A. Lipton
Defective Presentation of Endogenous Antigen by a Cell Line Expressing Class I Molecules, pp. 367-370
Nancy A. Hosken; Michael J. Bevan
Shared Actions of Endotoxin and Taxol on TNF Receptors and TNF Release, pp. 370-372
Aihao H. Ding; Françoise Porteu; Elizabeth Sanchez; Carl F. Nathan
Sodium Current-Induced Release of Calcium from Cardiac Sarcoplasmic Reticulum, pp. 372-376
Normand Leblanc; Joseph R. Hume
The Relationship between Charge Movements Associated with I Ca and I Na-Ca in Cardiac Myocytes, pp. 376-378
John H. B. Bridge; John R. Smolley; Kenneth W. Spitzer
Erythropoietin Retards DNA Breakdown and Prevents Programmed Death in Erythroid Progenitor Cells, pp. 378-381
Mark J. Koury; Maurice C. Bondurant


Book Reviews
Perspectives on Education, p. 388
American Teachers. Histories of a Profession at Work.
Donald Warren
Review author[s]: Sally Schwager
Views of Exchanges, pp. 389-390
Science Between the Superpowers.
Yakov M. Rabkin
Techno-Diplomacy. US-Soviet Confrontations in Science and Technology.
Glenn E. Schweitzer
Review author[s]: Paul R. Josephson
----------------, p. 390
Red Panda Biology.
A. R. Glatston
Review author[s]: K. L.
----------------, p. 390
Physiology of Cold Adaptation in Birds.
Claus Bech; Randi Eidsmo Reinertsen
Review author[s]: K. L.
Books Received, p. 390


Back Matter (22 pp.)

Previous Issue: New Series, Vol. 248, No. 4952, Apr. 13, 1990
Next Issue: New Series, Vol. 248, No. 4954, Apr. 27, 1990



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