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Science, New Series, Vol. 250, No. 4978, Oct. 12, 1990


Previous Issue: New Series, Vol. 250, No. 4977, Oct. 5, 1990
Next Issue: New Series, Vol. 250, No. 4979, Oct. 19, 1990


Front Matter (45 pp.)
The Rational Approach to the Irrational, p. 189
Daniel E. Koshland, Jr.


Letters
Genetics of Small Populations, p. 191
Hampton L. Carson
Venus Phenomena, p. 191
Paul A. Cloutier; Richard A. Kerr
Snail Toxins, pp. 191-192
John B. Pearce
Roddier Wavefront Sensor, p. 192
Horace W. Babcock
Science Curriculum Reform, pp. 192-193
Bill G. Aldridge
"High Risk" Anthropology, p. 193
Warren G. Kinzey


News and Comment
African AIDS: Whose Research Rules?, pp. 199-201
Joseph Palca
OTA Quietly Backs Fetal Tissue Work, p. 201
David P. Hamilton
Gallo Inquiry Takes Puzzling New Turn, pp. 202-203
Barbara J. Culliton
Tobacco Industry Does Slow Burn Over EPA Adviser, p. 203
Eliot Marshall


Briefings
NIH Watch, p. 204
Constance Holden
Anti-Asian Bias Seen at UCLA, p. 204
Constance Holden
Celebrating the Leech, p. 204
Constance Holden
Fusion Fans Keep Fighting, pp. 204-205
Constance Holden
Skepticism Urged on Soviet Psychiatry, p. 205
Constance Holden
Demolishing the Layer Cake, p. 205
Constance Holden
Unraveling Rembrandt, p. 205
Constance Holden


Research News
The High Culture of Neuroscience, pp. 206-207
Marcia Barinaga
Astrophysics in the Abyss, p. 208
M. Mitchell Waldrop
All Worked Up About Buckyballs, p. 209
Robert Pool
Mapping Terra Incognita (Humani Corporis), pp. 210-212
Barbara J. Culliton
Warm Waters, Bleached Corals, p. 213
Leslie Roberts


Sources of Human Psychological Differences: The Minnesota Study of Twins Reared Apart, pp. 223-228
Thomas J. Bouchard, Jr.; David T. Lykken; Matthew McGue; Nancy L. Segal; Auke Tellegen

Transient Particle Acceleration Associated with Solar Flares, pp. 229-236
E. L. Chupp

Mapping the Human Genome: Current Status, pp. 237-244
J. Claiborne Stephens; Mark L. Cavanaugh; Margaret I. Gradie; Martin L. Mador; Kenneth K. Kidd


Research Article
Radiation Hybrid Mapping: A Somatic Cell Genetic Method for Constructing High-Resolution Maps of Mammalian Chromosomes, pp. 245-250
David R. Cox; Margit Burmeister; E. Roydon Price; Suwon Kim; Richard M. Myers


The Human Genome Map 1990, pp. 251-262


Reports
Chaotic Motion of Europa and Ganymede and the Ganymede-Callisto Dichotomy, pp. 263-267
William C. Tittemore
A Plant Leucine Zipper Protein That Recognizes an Abscisic Acid Response Element, pp. 267-271
Mark J. Guiltinan; William R. Marcotte, Jr.; Ralph S. Quatrano
Cleaving Yeast and Escherichia coli Genomes at a Single Site, pp. 271-273
Michael Koob; Waclaw Szybalski
Reversible Root Tip Rotation in Arabidopsis Seedlings Induced by Obstacle-Touching Stimulus, pp. 274-276
Kiyotaka Okada; Yoshiro Shimura
Mutations Affecting TEA Blockade and Ion Permeation in Voltage-Activated K+ Channels, pp. 276-279
Roderick MacKinnon; Gary Yellen
Neurotrophic and Neurotoxic Effects of Amyloid β Protein: Reversal by Tachykinin Neuropeptides, pp. 279-282
Bruce A. Yankner; Lawrence K. Duffy; Daniel A. Kirschner
In Vitro Reconstruction of the Respiratory Central Pattern Generator of the Mollusk Lymnaea, pp. 282-285
N. I. Syed; A. G. M. Bulloch; K. Lukowiak
A Magnesium Current in Paramecium, pp. 285-288
Robin R. Preston
The Primate Hippocampal Formation: Evidence for a Time-Limited Role in Memory Storage, pp. 288-290
Stuart M. Zola-Morgan; Larry R. Squire
Widespread Expression of BDNF But Not NT3 by Target Areas of Basal Forebrain Cholinergic Neurons, pp. 290-294
Heidi S. Phillips; Jeanne M. Hains; Gary R. Laramee; Arnon Rosenthal; John W. Winslow
Induction of a Neuronal Proteoglycan by the NMDA Receptor in the Developing Spinal Cord, pp. 294-296
Robert G. Kalb; Susan Hockfield


Technical Comments
The Meaning of Hydrophobicity, pp. 297-298
Ken A. Dill; Peter L. Privalov; Stanley J. Gill; Kenneth P. Murphy


Inside AAAS, pp. 299-300


Book Reviews
Outward Searchers, p. 303
SETI Pioneers. Scientists Talk about Their Search for Extraterrestrial Intelligence.
David W. Swift
Review author[s]: Woodruff T. Sullivan
An Explanation of Behavior, pp. 303-305
The Triune Brain in Evolution. Role in Paleocerebral Functions.
Paul D. MacLean
Review author[s]: Anton Reiner
----------------, pp. 305-306
Ecological Concepts. The Contribution of Ecology to an Understanding of the Natural World.
J. M. Cherrett
Toward a More Exact Ecology.
Peter J. Grubb; John B. Whittaker
Review author[s]: K. L.
Books Received, p. 306


Back Matter (38 pp.)

Previous Issue: New Series, Vol. 250, No. 4977, Oct. 5, 1990
Next Issue: New Series, Vol. 250, No. 4979, Oct. 19, 1990



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