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Science, New Series, Vol. 251, No. 4995, Feb. 15, 1991


Previous Issue: New Series, Vol. 251, No. 4994, Feb. 8, 1991
Next Issue: New Series, Vol. 251, No. 4996, Feb. 22, 1991


Front Matter (21 pp.)
The Saving of Yosemite, p. 721
Daniel E. Koshland, Jr.


Letters
Virus Hunting and the Scientific Method, p. 724
Peter Duesberg
Radon Risk and EPA, pp. 724-726
Richard J. Guimond; Henry Hurwitz, Jr.; Dade W. Moeller; Bernard L. Cohen
Ubiquitous Neuroscientists, p. 726
John T. Durkin


Erratum: ACh Receptor-Rich Membrane Domains Organized in Fibroblasts by Recombinant 43-Kildalton Protein, p. 726
ScienceScope, p. 733
David P. Hamilton


News and Comment
John Dingell Takes on Stanford, pp. 734-737
Marcia Barinaga
It Ain't Broke, But Why Not FCCSET?, pp. 737-738
Joseph Palca
Creationist School Lives On, p. 738
Yvonne Baskin
Biotech Nightmare: Does Cetus Own PCR?, pp. 739-740
Marcia Barinaga
British Science Under the Ax-Again, p. 740
Jeremy Cherfas
The SSC Gets Its (Official) Price Tag: $8.3 Billion, p. 741
David P. Hamilton


Briefings
Right Handers Live Longer, p. 742
Constance Holden
Smooth Ride for Nominee, p. 742
Constance Holden
Juggling Robot, p. 742
Constance Holden
New Genome Centers, pp. 742+743
Constance Holden
Social Scientists Get a Man at OSTP... and an NSF Directorate?, pp. 742-743
Constance Holden
Log On, Ye Clinicians, p. 743
Constance Holden
Biotech Directory, p. 743
Constance Holden


Research News
Biologists Turn on to "Off-Enzymes", pp. 744-746
Jean Marx
Did a Burst of Volcanism Overheat Ancient Earth?, pp. 746-747
Richard A. Kerr
New Center To Study Therapies and Ethnicity, p. 748
Constance Holden


Perspective
Retroposons-Seeds of Evolution, p. 753
Jürgen Brosius


Exact Solution of Large Asymmetric Traveling Salesman Problems, pp. 754-761
Donald L. Miller; Joseph F. Pekny

The myoD Gene Family: Nodal Point During Specification of the Muscle Cell Lineage, pp. 761-766
Harold Weintraub; Robert Davis; Stephen Tapscott; Matthew Thayer; Michael Krause; Robert Benezra; T. Keith Blackwell; David Turner; Ralph Rupp; Stanley Hollenberg; Yuan Zhuang; Andrew Lassar


Research Article
Light-Directed, Spatially Addressable Parallel Chemical Synthesis, pp. 767-773
Stephen P. A. Fodor; J. Leighton Read; Michael C. Pirrung; Lubert Stryer; Amy Tsai Lu; Dennis Solas


Reports
Detection of CN Emission from (2060) Chiron, pp. 774-777
Schelte J. Bus; Michael F. A'Hearn; David G. Schleicher; Edward Bowell
Constraints on the Diameter and Albedo of 2060 Chiron, pp. 777-780
Mark V. Sykes; Russell G. Walker
A-Axis-Oriented YBa2Cu3O7/PrBa2Cu3O7 Superlattices, pp. 780-783
C. B. Eom; A. F. Marshall; J.-M. Triscone; B. Wilkens; S. S. Laderman; T. H. Geballe
Determination of Membrane Protein Structure by Rotational Resonance NMR: Bacteriorhodopsin, pp. 783-786
F. Creuzet; A. McDermott; R. Gebhard; K. Van Der Hoef; M. B. Spijker-Assink; J. Herzfeld; J. Lugtenburg; M. H. Levitt; R. G. Griffin
Baddeleyite-Type High-Pressure Phase of TiO2, pp. 786-788
H. Sato; S. Endo; M. Sugiyama; T. Kikegawa; O. Shimomura; K. Kusaba
Endothelial Expression of a Mononuclear Leukocyte Adhesion Molecule During Atherogenesis, pp. 788-791
Myron I. Cybulsky; Michael A. Gimbrone, Jr.
Human Immunodeficiency Virus Infection of Human-PBL-SCID Mice, pp. 791-794
Donald E. Mosier; Richard J. Gulizia; Stephen M. Baird; Darcy B. Wilson; Deborah H. Spector; Stephen A. Spector
The Assimilation of Elements Ingested by Marine Copepods, pp. 794-796
John R. Reinfelder; Nicholas S. Fisher
Senescence of Nickel-Transformed Cells by an X Chromosome: Possible Epigenetic Control, pp. 796-799
Catherine B. Klein; Kathleen Conway; Xin Wei Wang; Rupinder K. Bharma; Xinhua Lin; Mitchell D. Cohen; Lois Annab; J. Carl Barrett; Max Costa
Effect of Cytochrome P450 Arachidonate Metabolites on Ion Transport in Rabbit Kidney Loop of Henle, pp. 799-802
Bruno Escalante; David Erlij; John R. Falck; John C. McGiff
Identification of the Hepatocyte Growth Factor Receptor as the c-met Proto-Oncogene Product, pp. 802-804
Donald P. Bottaro; Jeffrey S. Rubin; Donna L. Faletto; Andrew M.-L. Chan; Thomas E. Kmiecik; George F. Vande Woude; Stuart A. Aaronson
Regulation of Polyphosphoinositide-Specific Phospholipase C Activity by Purified Gq, pp. 804-807
Alan V. Smrcka; John R. Hepler; Kendall O. Brown; Paul C. Sternweis
Translational Potentiation of Messenger RNA with Secondary Structure in Xenopus, pp. 807-810
Loning Fu; Ruiqiong Ye; Leon W. Browder; Randal N. Johnston


Technical Comment
Conserved Sequence and Structural Elements in the HIV-1 Principal Neutralizing Determinant: Corrections and Clarifications, p. 811
Gregory J. LaRosa; Joseph P. Davide; Kent Weinhold; Julie A. Waterbury; Albert T. Profy; John A. Lewis; Alphonse J. Langlois; Gordon R. Dreesman; R. Neal Boswell; Philip Shadduck; L. Howard Holley; Martin Karplus; Dani P. Bolognesi; Thomas J. Matthews; Emilio A. Emini; Scott D. Putney


Book Reviews
The Continuing Question of Animal Awareness, pp. 813-814
Cognitive Ethology. The Minds of Other Animals. Essays in Honor of Donald R. Griffin
Carolyn A. Ristau
Review author[s]: Charles T. Snowdo
The Dinosaurs of '47, p. 814
The Age of Reptiles. The Great Dinosaur Mural at Yale.
Vincent Scully; Rudolph F. Zalinger; Leo J. Hickey; John H. Ostrom
Review author[s]: Dale A. Russell
A Puritan of Science, p. 815
Science and Cultural Crisis. An Intellectual Biography of Percy Williams Bridgman (1882-1961).
Maila L. Walter
Review author[s]: Albert E. Moyer
Medical Assessment, pp. 815-816
Effective Care in Pregnancy and Childbirth
Iain Chalmers; Murray Enkin; Mark J. N. C. Keirse
A Guide to Effective Care in Pregnancy and Childbirth.
Murray Enkin; Marc J. N. C. Keirse; Iain Chalmers
Review author[s]: Michael S. Kramer
Books Received, pp. 816-817


Back Matter (27 pp.)

Previous Issue: New Series, Vol. 251, No. 4994, Feb. 8, 1991
Next Issue: New Series, Vol. 251, No. 4996, Feb. 22, 1991



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