JSTOR Home Skip to Main Content
  
  
  
  

Science, New Series, Vol. 251, No. 4997, Mar. 1, 1991


Previous Issue: New Series, Vol. 251, No. 4996, Feb. 22, 1991
Next Issue: New Series, Vol. 251, No. 4998, Mar. 8, 1991


Front Matter (42 pp.)
Gordon Research Conferences, p. 1001
Richard S. Nicholson


Policy Forum
U.S. Water Resources Versus an Announced But Uncertain Climate Change, p. 1002
Paul E. Waggoner


Letters
Cool Policy, p. 1005
Jonathan David Cool
Explaining the Avocado Illusion, p. 1005
Maurice Hershenson
High-Temperature Superconductivity Theory, pp. 1005-1007
Robert Schrieffer; P. W. Anderson; E. Abrahams; R. Laughlin; Frank Wilczek


Erratum: Exact Solution of Large Asymmetric Traveling Salesman Problems, p. 1007
Erratum: Viral Etiology of AIDS and the Gallo Probe, p. 1007
ScienceScope, p. 1011
David P. Hamilton


News and Comment
Guidance from Above in the Gulf War, pp. 1012-1014
Vincent Kiernan
Caltech Deals With Fraud Allegations, p. 1014
Leslie Roberts
Down to the Bone: East German Science Gets Cut, pp. 1015-1016
Richard Sietmann
Researchers Protest User Fees at National Labs, p. 1016
Mark Crawford
Do We Need More Ph.D.s, or Is Fewer Really Better?, pp. 1017-1018
Constance Holden
Europeans Push Computer Plan, p. 1018
Jeremy Cherfas


Briefings
Gene Therapy: A New First?, p. 1019
David P. Hamilton
Indoor Radon: A Little Less to Worry About, p. 1019
David P. Hamilton
Practicing What You Preach at Budget Time, p. 1019
David P. Hamilton
Heart Attacks More Severe for Women, p. 1019
David P. Hamilton
British Brains Continuing to Drain, p. 1019
David P. Hamilton

Capital Science: AAAS Meets in Washington, pp. 1020-1025
Ann Gibbons; Marcia Barinaga; Eliot Marshall; M. Mitchell Waldrop; Jean Marx; Robert Langreth; J. B.


Research News
Magellan Paints a Portrait of Venus, pp. 1026-1027
Richard A. Kerr
Music of the Spheres, p. 1028
Barry Cipra


The Evolution of Sex Chromosomes, pp. 1030-1033
Brian Charlesworth

Physics in Strong Magnetic Fields Near Neutron Stars, pp. 1033-1038
Alice K. Harding

Molecular Analysis of Protein Assembly in Muscle Development, pp. 1039-1044
Henry F. Epstein; Donald A. Fischman


Research Article
Control of Alternative Splicing by the Differential Binding of U1 Small Nuclear Ribonucleoprotein Particle, pp. 1045-1050
Hai-Chien Kuo; Faiz-ul H. Nasim; Paula J. Grabowski


Reports
Direct Observation of Global Protein Motion in Hemoglobin and Myoglobin on Picosecond Time Scales, pp. 1051-1054
L. Genberg; L. Richard; G. McLendon; R. J. Dwayne Miller
Reduction of Deepwater Formation in the Greenland Sea During the 1980s: Evidence from Tracer Data, pp. 1054-1056
Peter Schlosser; Gerhard Bönisch; Monika Rhein; Reinhold Bayer
Evidence for a Phytotoxic Hydroxy-Aluminum Polymer in Organic Soil Horizons, pp. 1056-1058
Douglas Hunter; Donald S. Ross
The Greenhouse Effect in Central North America: If Not Now, When?, pp. 1058-1061
Thomas R. Karl; Richard R. Heim, Jr.; Robert G. Quayle
Evidence of Strong Earthquake Shaking in the Lower Wabash Valley from Prehistoric Liquefaction Features, pp. 1061-1063
S. F. Obermeier; N. R. Bleuer; C. A. Munson; P. J. Munson; W. S. Martin; K. M. McWilliams; D. A. Tabaczynski; J. K. Odum; M. Rubin; D. L. Eggert
New Fossil Evidence on the Sister-Group of Mammals and Early Mesozoic Faunal Distributions, pp. 1063-1065
Neil H. Shubin; A. W. Crompton; Hans-Dieter Sues; Paul E. Olsen
Salicornia bigelovii Torr.: An Oilseed Halophyte for Seawater Irrigation, pp. 1065-1067
Edward P. Glenn; James W. O'Leary; M. Carolyn Watson; T. Lewis Thompson; Robert O. Kuehl
Characterization of a Dimerization Motif in AP-2 and Its Function in Heterologous DNA-Binding Proteins, pp. 1067-1071
Trevor Williams; Robert Tijan
Molecular Nature of the Drosophila Sex Determination Signal and Its Link to Neurogenesis, pp. 1071-1074
James W. Erickson; Thomas W. Cline
Enhancement of HIV-1 Cytocidal Effects in CD4+ Lymphocytes by the AIDS-Associated Mycoplasma, pp. 1074-1076
Shyh-Ching Lo; Shien Tsai; Janet R. Benish; James Wai-Kuo Shih; Douglas J. Wear; Dennis M. Wong
A Model for the Adjustment of the Mitotic Clock by Cyclin and MPF Levels, pp. 1076-1078
R. Norel; Z. Agur
Cell Cycle-Dependent Coupling of the Calcitonin Receptor to Different G Proteins, pp. 1078-1082
Munmun Chakraborty; Diptendu Chatterjee; Sakari Kellokumpu; Howard Rasmussen; Roland Baron
Molecular Transfer of a Species-Specific Behavior from Drosophila simulans to Drosophila melanogaster, pp. 1082-1085
David A. Wheeler; Charalambos P. Kyriacou; Mary L. Greenacre; Qiang Yu; Joan E. Rutila; Michael Rosbash; Jeffrey C. Hall


Book Reviews
Risk Abatement, p. 1114
Setting Safety Standards. Regulation in the Public and Private Sectors.
Ross E. Cheit
Review author[s]: Susan G. Hadden
Quest for a Particle, p. 1115
The Higgs Hunter's Guide.
John F. Gunion; Howard E. Haber; Gordon Kane; Sally Dawson
Review author[s]: Roberto Peccei
Embryogenesis, pp. 1115-1116
This Side Up. Spatial Determination in the Early Development of Animals.
Robert Wall
Review author[s]: William R. Jeffery
Archeology in Context, pp. 1116-1117
A History of Archaeological Thought.
Bruce G. Trigger
Review author[s]: Jacob W. Gruber
Books Received, pp. 1117-1118


Back Matter (30 pp.)

Previous Issue: New Series, Vol. 251, No. 4996, Feb. 22, 1991
Next Issue: New Series, Vol. 251, No. 4998, Mar. 8, 1991



©2000-2007 JSTOR