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Science, New Series, Vol. 259, No. 5095, Jan. 29, 1993


Previous Issue: New Series, Vol. 259, No. 5094, Jan. 22, 1993
Next Issue: New Series, Vol. 259, No. 5096, Feb. 5, 1993


Front Matter (32 pp.)
Editorial: Basic Research (II): Organization, p. 579
Daniel E. Koshland, Jr.


Letters
Fossil Collecting and Government Regulation, pp. 581-582
Clayton E. Ray; C. S. Churcher; Clement W. Meighan
Super Collider, 2000 B.C., p. 582
John M. Rowell; Dietrich Schroeer; Jeffrey F. Friedman
Pitohui: How Toxic and to Whom?, pp. 582-583
John I. Glendinning; John P. Dumbacher; Bruce M. Beehler; Thomas F. Spande; H. Martin Garraffo; John W. Daly


Corrections and Clarifications: Getting it Together at the Synapse, p. 583
Corrections and Clarifications: Will Fermilab Find Its Future by Looking to the Stars, p. 583


Policy Forum
The Definition of Misconduct in Science: A View from NSF, pp. 584-585+647-648
Donald E. Buzzelli


ScienceScope, p. 587
Richard Stone


News
Supreme Court to Weigh Science, pp. 588-590
Eliot Marshall
Healy Stays, Fetal Tissue Ban Goes, p. 591
Christopher Anderson
Disease Gene Search Goes Big Science, pp. 591-592
Peter Aldhous
MSU Officials Criticized for Mishandling Data Dispute, pp. 592-594
Eliot Marshall
Pinatubo Global Cooling on Target, p. 594
Richard A. Kerr
New Technique Offers a Window On Bacteria's Secret Weapons, p. 595
Marcia Barinaga
Is Japan a Boon or a Burden To U.S. Industry's Leadership?, pp. 596-598
June Kinoshita
Kohl Replaces Science Minister, p. 598
Peter Aldhous


Random Samples, p. 599
Constance Holden


Special Report
The Politics of Breast Cancer, pp. 616-617
Eliot Marshall
Search for a Killer: Focus Shifts from Fat to Hormones, pp. 618-621
Eliot Marshall
Zeroing In on a Breast Cancer Susceptibility Gene, pp. 622-625
Leslie Roberts
Cellular Changes on the Route to Metastasis, pp. 626-629
Jean Marx


Perspectives
Current Approaches to Breast Cancer Prevention, pp. 630-631
Maureen Henderson
The Development of Biological Therapies for Breast Cancer, pp. 631-632
Marc E. Lippman


Hormonal Chemoprevention of Cancer in Women, pp. 633-638
Brian E. Henderson; Ronald K. Ross; Malcolm C. Pike

Demic Expansions and Human Evolution, pp. 639-646
Luigi L. Cavalli-Sforza; Paolo Menozzi; Alberto Piazza


Reports
Heliocentric Zoning of the Asteroid Belt by Aluminum-26 Heating, pp. 653-655
Robert E. Grimm; Harry Y. McSween, Jr.
Isotope Effect and Superconductivity in Metal-Doped C 60, pp. 655-658
Chia-Chun Chen; Charles M. Lieber
Element-Specific Magnetic Microscopy with Circularly Polarized X-Rays, pp. 658-661
J. Stohr; Y. Wu; B. D. Hermsmeier; M. G. Samant; G. R. Harp; S. Koranda; D. Dunham; B. P. Tonner
Reaction of a Tantalum Alkylidene Complex with Dinuclear Metal Carbonyls: Formation of C3 Ligands, pp. 661-663
Grant Proulx; Robert G. Bergman
Shock Amorphization of Cristobalite, pp. 663-666
A. J. Gratz; L. D. DeLoach; T. M. Clough; W. J. Nellis
Microstructural Observations of α-Quartz Amorphization, pp. 666-669
Kathleen J. Kingma; Charles Meade; Russell J. Hemley; Ho-kwang Mao; David R. Veblen
The Hydrolytic Water Molecule in Trypsin, Revealed by Time-Resolved Laue Crystallography, pp. 669-673
Paul T. Singer; Arne Smalås; Robert P. Carty; Walter F. Mangel; Robert M. Sweet
Structure of the Regulatory Complex of Escherichia coli III Glc with Glycerol Kinase, pp. 673-677
James H. Hurley; H. Rick Faber; David Worthylake; Norman D. Meadow; Saul Roseman; Donald W. Pettigrew; S. James Remington
Patchiness and Correlations in DNA Sequences, pp. 677-680
Samuel Karlin; Volker Brendel
The Skipping of Constitutive Exons in Vivo Induced by Nonsense Mutations, pp. 680-683
Harry C. Dietz; David Valle; Clair A. Francomano; Raymond J. Kendzior, Jr.; Reed E. Pyeritz; Garry R. Cutting
The Effect of Posttranslational Modifications on the Interaction of Ras2 with Adenylyl Cyclase, pp. 683-686
Yuichi Kuroda; Noboru Suzuki; Tohru Kataoka
Selection of Bacterial Virulence Genes That Are Specifically Induced in Host Tissues, pp. 686-688
Michael J. Mahan; James M. Slauch; John J. Mekalanos
CNTF Protection of Oligodendrocytes Against Natural and Tumor Necrosis Factor-Induced Death, pp. 689-692
Jean-Claude Louis; Ella Magal; Seiji Takayama; Silvio Varon
Inhibition of Neural Crest Cell Attachment by Integrin Antisense Oligonucleotides, pp. 692-695
Thomas Lallier; Marianne Bronner-Fraser


Technical Comments
A Truncated Erythropoietin Receptor and Cell Death, p. 696
Ralph Schwall; Yukio Nakamura; Hiromitsu Nakauchi


Inside AAAS, pp. 697-698
Karen Hopkin


Book Reviews
When Telephony Was Young, pp. 699-701
America Calling. A Social History of the Telephone to 1940.
Claude S. Fischer
Review author[s]: Glenn Porter
Collapsed Stellar Objects, pp. 701-702
High-Energy Radiation from Magnetized Neutron Stars.
Peter Mészáros
Review author[s]: Joseph Daugherty
Palynology, p. 702
Pollen and Spores. Patterns of Diversification.
S. Blackmore; S. H. Barnes
Review author[s]: Michael G. Simpson


Back Matter (30 pp.)

Previous Issue: New Series, Vol. 259, No. 5094, Jan. 22, 1993
Next Issue: New Series, Vol. 259, No. 5096, Feb. 5, 1993



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