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Science, New Series, Vol. 250, No. 4986, Dec. 7, 1990


Previous Issue: New Series, Vol. 250, No. 4985, Nov. 30, 1990
Next Issue: New Series, Vol. 250, No. 4987, Dec. 14, 1990


Front Matter (50 pp.)
Clean Coal Technology, p. 1317
Philip H. Abelson


Letters
All-Women Conference: Did It Discriminate?, p. 1319
Alison Galloway; Craig H. Kinsley
Epidermal Growth Factor, p. 1319
Russell F. Doolittle
Zebrafish as Developmental Models, p. 1320
Lawrence M. Page


Erratum: Mapping Terra Incognita (Humani Corporis), p. 1320
Erratum: Indirect Costs and Merit Review, p. 1320
Erratum: The Embryo Takes Its Vitamins, p. 1320


News and Comment
Can Science Education Be Saved?, pp. 1327-1330
Elizabeth Culotta
Computer Security: NAS Sounds the Alarm, p. 1330
Eliot Marshall
Publishing by-and for?-the Numbers, pp. 1331-1332
David P. Hamilton
Biomedical Funds: IOM Strikes Back, p. 1332
Joseph Palca
Hubble Hubris: A Case of "Certified" Blindness, p. 1333
M. Mitchell Waldrop


Briefings
Now Even Mummies Go Digital, p. 1334
Constance Holden
Congress Hungry for NAS Advice, p. 1334
Constance Holden
AIDS Virus Target, p. 1334
Constance Holden
French Genome Project, pp. 1334-1335
Constance Holden
Darwin Back on the Books, p. 1335
Constance Holden
TV Attachment Inherited?, p. 1335
Constance Holden
Domestic Math Ph.D.'s Hit All-Time Low, p. 1335
Constance Holden
Primate Secret to Longevity, p. 1335
Constance Holden


Research News
Large-Scale Sequencing Trials Begin, pp. 1336-1338
Leslie Roberts
Did Cooler Heads Prevail?, pp. 1338-1339
Ann Gibbons
Materials Jamboree, pp. 1340-1341
Robert Pool
Calculating the Original Family-of Exons, p. 1342
Ann Gibbons


The Concept of Probability in Safety Assessments of Technological Systems, pp. 1359-1364
George Apostolakis

Astrophysics from the Moon, pp. 1365-1370
Bernard F. Burke


Research Articles
Spacing Differentiation in the Developing Drosophila Eye: A Fibrinogen- Related Lateral Inhibitor Encoded by scabrous, pp. 1370-1377
Nicholas E. Baker; Marek Mlodzik; Gerald M. Rubin
How Big Is the Universe of Exons?, pp. 1377-1382
Robert L. Dorit; Lloyd Schoenbach; Walter Gilbert


Reports
A Possible Younger Dryas Record in Southeastern Alaska, pp. 1383-1385
D. R. Engstrom; B. C. S. Hansen; H. E. Wright, Jr.
El Niño-Southern Oscillation Displacements of the Western Equatorial Pacific Warm Pool, pp. 1385-1388
M. J. McPhaden; J. Picaut
Preceramic Occupations in the Orinoco River Valley, pp. 1388-1390
William P. Barse
Oxygen Isotope Effect and Structural Phase Transitions in La2CuO4- Based Superconductors, pp. 1390-1394
M. K. Crawford; W. E. Farneth; E. M. McCarron; R. L. Harlow; A. H. Moudden
Realized Reproductive Success of Polygynous Red-Winged Blackbirds Revealed by DNA Markers, pp. 1394-1397
H. Lisle Gibbs; Patrick J. Weatherhead; Peter T. Boag; Bradley N. White; Lisa M. Tabak; Drew J. Hoysak
A Trans-Acting Factor That Binds to a GT-Motif in a Phytochrome Gene Promoter, pp. 1397-1399
Katayoon Dehesh; Wesley B. Bruce; Peter H. Quail
Sequence Requirements for Coiled-Coils: Analysis with λ Repressor- GCN4 Leucine Zipper Fusions, pp. 1400-1403
James C. Hu; Erin K. O'Shea; Peter S. Kim; Robert T. Sauer
Identification of a Specialized Adenylyl Cyclase That May Mediate Odorant Detection, pp. 1403-1406
Heather A. Bakalyar; Randall R. Reed
Isotope-Edited NMR of Cyclosporin A Bound to Cyclophilin: Evidence for a Trans 9,10 Amide Bond, pp. 1406-1409
S. W. Fesik; R. T. Gampe, Jr.; T. F. Holzman; D. A. Egan; R. Edalji; J. R. Luly; R. Simmer; R. Helfrich; V. Kishore; D. H. Rich
Detection of Radial Crossbridge Force by Lattice Spacing Changes in Intact Single Muscle Fibers, pp. 1409-1411
G. Cecchi; M. A. Bagni; P. J. Griffiths; C. C. Ashley; Y. Maeda
Inhibition of HIV-1 Replication by a Nonnucleoside Reverse Transcriptase Inhibitor, pp. 1411-1413
Vincent J. Merluzzi; Karl D. Hargrave; Mark Labadia; Karl Grozinger; Mark Skoog; Joseph C. Wu; Cheng-Kon Shih; Kristine Eckner; Susan Hattox; Julian Adams; Alan S. Rosehthal; Ronald Faanes; Robert J. Eckner; Richard A. Koup; John L. Sullivan
gCap39, a Calcium Ion- and Polyphosphoinositide-Regulated Actin Capping Protein, pp. 1413-1415
Fu-Xin Yu; Paul A. Johnston; Thomas C. Südhof; Helen L. Yin
Requirement of ets-2 Expression for Xenopus Oocyte Maturation, pp. 1416-1418
Zhang-Qun Chen; Laura A. Burdett; Arun K. Seth; James A. Lautenberger; Takis S. Papas
The Function of a Leader Peptide in Translocating Charged Amino Acyl Residues Across a Membrane, pp. 1418-1421
Jack Rohrer; Andreas Kuhn
Efficient Incorporation of Human CD4 Protein Into Avian Leukosis Virus Particles, pp. 1421-1423
John A. T. Young; Paul Bates; Karl Willert; Harold E. Varmus
The Role of β2-Microglobulin in Peptide Binding by Class I Molecules, pp. 1423-1426
Antonella Vitiello; Terry A. Potter; Linda A. Sherman
Disruption of the Human SCL Locus by "Illegitimate" V-(D)-J Recombinase Activity, pp. 1426-1429
Peter D. Aplan; Donald P. Lombardi; Ann M. Ginsberg; Jeffrey Cossman; Virginia L. Bertness; Ilan R. Kirsch
D1 and D2 Dopamine Receptor-Regulated Gene Expression of Striatonigral and Striatopallidal Neurons, pp. 1429-1432
Charles R. Gerfen; Thomas M. Engber; Lawrence C. Mahan; Zvi Susel; Thomas N. Chase; Frederick J. Monsma, Jr.; David R. Sibley


Technical Comments
Formation of Ozone by Irradiation of Oxygen at 248 Nanometers, pp. 1432-1434
D. E. Freeman; K. Yoshino; W. H. Parkinson; Tom G. Slanger; G. E. Gadd
Fetal Brain Grafts and Parkinson's Disease, pp. 1434-1435
William J. Freed; Robert S. Miletich; Krzysztof S. Bankiewicz; Robert J. Plunkett; Olle Lindvall; Patrik Brundin; Håkan Widner; Stig Rehncrona; Björn Gustavii; Richard Frackowiak; Klaus L. Leenders; Guy Sawle; John C. Rothwell; C. David Marsden; Anders Björklund


Book Reviews
Irrationalities in the Ranks, pp. 1455-1456
Arms and the Enlisted Woman.
Judith Hicks Stiehm
Review author[s]: Patricia A. Roos
The Bones from Zhoukoudian, p. 1456
The Story of Peking Man. From Archaeology to Mystery.
Jia Lanpo; Huang Weiwen
Review author[s]: Paul A. Erickson
Natural Clones, pp. 1456-1457
A Functional Biology of Clonal Animals.
Roger N. Hughes
Review author[s]: C. Drew Harvell
----------------, p. 1457
Some Mathematical Questions in Biology. Sex Allocation and Sex Change: Experiments and Models.
Review author[s]: K. L.
----------------, p. 1457
The Cerebral Cortex of the Rat.
Bryan Kolb; Richard C. Tees
Review author[s]: K. L.
----------------, p. 1458
Horns, Pronghorns, and Antlers. Evolution, Morphology, Physiology, and Social Significance.
George A. Bubenik; Anthony B. Bubenik
Review author[s]: K. L.
Reprints of Books Previously Reviewed, p. 1458
Books Received, pp. 1458-1459


Inside AAAS, pp. 1460-1461
Cynthia Lollar

Back Matter (27 pp.)

Previous Issue: New Series, Vol. 250, No. 4985, Nov. 30, 1990
Next Issue: New Series, Vol. 250, No. 4987, Dec. 14, 1990



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