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Science, New Series, Vol. 243, No. 4898, Mar. 24, 1989


Previous Issue: New Series, Vol. 243, No. 4897, Mar. 17, 1989
Next Issue: New Series, Vol. 243, No. 4899, Mar. 31, 1989


Front Matter (15 pp.)
A New Approach to Faculty Salaries, p. 1533
Daniel E. Koshland


Letters
Vitamin C Papers, p. 1535
Linus Pauling
Native Plants: Conservation Priorities, p. 1535
Robert Ornduff
Teaching Machines, p. 1535
B. F. Skinner
Boreal Forests and the Global Carbon Cycle, pp. 1535-1536
Pekka Kauppi; Maximilian Posch
La Difference, p. 1536
Roland Fischer


News & Comment
Spy Satellites: Entering a New Era, pp. 1541-1543
Daniel Charles
DOD Lists Critical Technologies, p. 1543
Colin Norman
EPA's Plan for Cooling the Global Greenhouse, pp. 1544-1545
Eliot Marshall
German Computer Spy Ring Broken, p. 1545
Eliot Marshall
Fraud Review May be Taken from NIH, p. 1545
Barbara J. Culliton
Next Science Adviser?, p. 1545
Mark Crawford
Japan Lays out Welcome Mat for U.S. Scientists, pp. 1546-1547
Marjorie Sun
Psychiatrists Examine Soviet System, p. 1547
Constance Holden
European Genome Program Delayed?, p. 1548
David Dickson
Marchuk Admits Flaws in Election, p. 1548
David Dickson
Bonn Launches Wind Energy Experiment, p. 1548
Don Kirk
... Britain Picks Site for Wind Farm, p. 1548
David Dickson


Research News
Limits to DNA Fingerprinting, pp. 1549-1551
Roger Lewin
Drug-Resistant Strains of AIDS Virus Found, pp. 1551-1552
Jean L. Marx
Treasuring the Moon for 20 Years, p. 1552
Richard A. Kerr
Is Risk Assessment Conservative?, p. 1553
Leslie Roberts
Pulsar, Pulsar, Where Art Thou, Pulsar?, p. 1553
M. Mitchell Waldrop
New Equipment Roundup dazzles scientists, pp. 1554-1556
Robert Pool


Star Formation in Irregular Galaxies, pp. 1557-1563
D. A. Hunter; J. S. Gallagher

Signal Transduction by the Platelet-Derived Growth Factor Receptor, pp. 1564-1570
Lewis T. Williams

Topology and Formation of Triple-Stranded H-DNA, pp. 1571-1576
Han Htun; James E. Dahlberg

A Multiubiquitin Chain is Confined to Specific Lysine in a Targeted Short-Lived Protein, pp. 1576-1583
Vincent Chau; John W. Tobias; Andreas Bachmair; David Marriott; David J. Ecker; David K. Gonda; Alexander Varshavsky


Reports
Radar Detection of Phobos, pp. 1584-1586
S. J. Ostro; R. F. Jurgens; D. K. Yeomans; E. M. Standish; W. Greiner
Imaging Crystals, Polymers, and Processes in Water with the Atomic Force Microscope, pp. 1586-1589
B. Drake; C. B. Prater; A. L. Weisenhorn; S. A. C. Gould; T. R. Albrecht; C. F. Quate; D. S. Cannell; H. G. Hansma; P. K. Hansma
Cnidocyte Mechanoreceptors are Tuned to the Movements of Swimming Prey by Chemoreceptors, pp. 1589-1591
Glen M. Watson; David A. Hessinger
Major Enhancement of the Affinity of an Enzyme for a Transition-State Analog by a Single Hydroxyl Group, pp. 1591-1593
Warren M. Kati; Richard Wolfenden
Direct Measurements of Sliding between Outer Doublet Microtubules in Swimming Sperm Flagella, pp. 1593-1596
Charles J. Brokaw
Histamine is an Intracellular Messenger Mediating Platelet Aggregation, pp. 1596-1599
Satya P. Saxena; Lorne J. Brandes; Allan B. Becker; Keith J. Simons; Frank S. LaBella; Jon M. Gerrard
Activation of the Cellular Proto-Oncogene Product p21Ras by Addition of a Myristylation Signal, pp. 1600-1603
Janice E. Buss; Patricia A. Solski; James P. Schaeffer; Marsha J. MacDonald; Channing J. Der
Activity-Dependent Enhancement of Presynaptic Inhibition in Aplysia Sensory Neurons, pp. 1603-1606
S. A. Small; E. R. Kandel; R. D. Hawkins
Directed Movement of Latex Particles in the Gynoecia of Three Species of Flowering Plants, pp. 1606-1608
L. C. Sanders; E. M. Lord
Commitment of Neural Crest Cells to the Sensory Neuron Lineage, pp. 1608-1611
Maya Sieber-Blum
Indole-2-Carboxylic Acid: A Competitive Antagonist of Potentiation by Glycine at the NMDA Receptor, pp. 1611-1613
James E. Huettner


Technical Comments
Asymmetries of Clade Shape and the Direction of Evolutionary Time, pp. 1613-1614
Norman L. Gilinsky; Stephen Jay Gould; Rebecca Z. German
Asymmetries of Clade Shape and the Direction of Evolutionary Time: Response, pp. 1614-1615
Jennifer A. Kitchell; Norman MacLeod
Possible Role of Carbamates in Neurotoxicity and Neurotransmitter Inactivation, p. 1615
Edmund A. Mroz
Possible Role of Carbamates in Neurotoxicity and Neurotransmitter Inactivation: Response, p. 1615
John W. Weiss; Dennis W. Choi


Meetings
Gordon Research Conferences, p. 1616


Book Reviews
Cortical Consolidation, p. 1617
Neurobiology of Neocortex
P. Rakic; W. Singer
Review author[s]: Steven P. Wise
The Bee Situation, p. 1618
Africanized Honey Bees and Bee Mites
Glen R. Needham; Robert E. Page; Mercedes Delfinado-Baker; Clive E. Bowman
Review author[s]: Evert E. Lindquist
Water-Formed Structures, pp. 1618-1619
Geomorphology and Hydrology of Karst Terrains
William B. White
Review author[s]: Arthur L. Bloom
Geothermometry, p. 1619
Thermal History of Sedimentary Basins
Nancy L. Naeser; Thane H. McCulloh
Review author[s]: George DeV. Klein


Back Matter (22 pp.)

Previous Issue: New Series, Vol. 243, No. 4897, Mar. 17, 1989
Next Issue: New Series, Vol. 243, No. 4899, Mar. 31, 1989



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