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Science, New Series, Vol. 287, No. 5457, Feb. 25, 2000


Previous Issue: New Series, Vol. 287, No. 5456, Feb. 18, 2000
Next Issue: New Series, Vol. 287, No. 5458, Mar. 3, 2000


Front Matter (31 pp.)
Netwatch, p. 1359
Jocelyn Kaiser

Editors' Choice, pp. 1365+1367
Gilbert Chin


News


News of the Week
Fruit Fly Genome Yields Data and a Validation, p. 1374
Elizabeth Pennisi
HHS Probes Genesis of Gene Sequencer, pp. 1374-1375
Jon Cohen
Patent on HIV Receptor Provokes an Outcry, pp. 1375+1377
Eliot Marshall
ScienceScope, p. 1377
Jeffrey Mervis; David Malakoff
Spider Genes Reveal Flexible Design, p. 1378
Erik Stokstad
NEAR Finds a Battered but Unbroken Eros, pp. 1378-1379
Richard A. Kerr
New Stroke Treatment Strategy Explored, pp. 1379+1381
Laura Helmuth
Death Triggers Regrowth of Zebra Finch Neurons, p. 1381
Gretchen Vogel


News Focus
Meltdown on Long Island, pp. 1382-1388
Andrew Lawler
The Unbearable Capriciousness of Bering, pp. 1388-1389
Robert A. Saar
New Corn Plant Draws Fire from GM Food Opponents, p. 1390
Dan Ferber
Getting a More Precise Grip on the Physical World, pp. 1391+1393
Andrew Watson


Random Samples, p. 1395
Constance Holden


Science's Compass


Editorial
In Search of Stem Cell Policy, p. 1397
Mark S. Frankel


Letters
Limits to Our Knowledge, p. 1399
Walter Makous
Transgenic Maize in Mexico: No Need for Concern, p. 1399
Juan Pablo Ricardo Martínez-Soriano; Diana Sara Leal-Klevezas
Firearms the Target, pp. 1399-1400
Joseph C. Oefelein; Peter Birner; S. B. Sorenson


Policy Forum
Interesting Times-Biology, European Science, and EMBL, pp. 1401+1403
Fotis C. Kafatos


Books et al.
A Sheep and a Metaphor, pp. 1404-1405
The Second Creation The Age of Biological Control by the Scientists Who Cloned Dolly
Ian Wilmut; Keith Campbell; Colin Tudge
Review author[s]: Lee M. Silver
Big Synapse Stories, p. 1405
The Squid Giant Synapse A Model for Chemical Trasmission
Rodolfo R. Llinás
Review author[s]: George J. Augustine


Perspectives
The Refugial Debate, pp. 1406-1407
K. J. Willis; R. J. Whittaker
Catalysis on Oxide Surfaces, pp. 1407+1409
Helmut Knözinger
Mice Are Not Furry Petri Dishes, pp. 1409-1410
James Bull; Bruce Levin
Galaxy-Scale Mergers and Globular Custers, pp. 1410-1411
François Schweizer


Stem Cell Research and Ethics
Stem Cells Branch Out, p. 1417
Pamela J. Hines; Beverly A. Purnell; Jean Marx


News
Can Old Cells Learn New Tricks?, pp. 1418-1419
Gretchen Vogel
The Business of Stem Cells, pp. 1419-1421
Eliot Marshall
Fetal Neuron Grafts Pave the Way for Stem Cell Therapies, pp. 1421-1422
Marcia Barinaga


Viewpoints
Patients' Voices: The Powerful Sound in the Stem Cell Debate, p. 1423
Daniel Perry
A Time for Restraint, p. 1424
Frank E. Young
Europe Confronts the Embryonic Stem Cell Research Challenge, pp. 1425-1427
Noëlle Lenoir


Reviews
Out of Eden: Stem Cells and Their Niches, pp. 1427-1430
Fiona M. Watt; Brigid L. M. Hogan
Stem Cells in Epithelial Tissues, pp. 1431-1433
J. M. W. Slack
Mammalian Neural Stem Cells, pp. 1433-1438
Fred H. Gage
Why Stem Cells?, pp. 1439-1441
Derek van der Kooy; Samuel Weiss
Translating Stem and Progenitor Cell Biology to the Clinic: Barriers and Opportunities, pp. 1442-1446
Irving L. Weissman


Research


Research Articles
The Atom-Cavity Microscope: Single Atoms Bound in Orbit by Single Photons, pp. 1447-1453
C. J. Hood; T. W. Lynn; A. C. Doherty; A. S. Parkins; H. J. Kimble
An Oral Vaccine against NMDAR1 with Efficacy in Experimental Stroke and Epilepsy, pp. 1453-1460
Matthew J. During; Charles W. Symes; Patricia A. Lawlor; John Lin; Jane Dunning; Helen L. Fitzsimons; David Poulsen; Paola Leone; Ruian Xu; Bridget L. Dicker; Janusz Lipski; Deborah Young


Reports
Shaped Ceramics with Tunable Magnetic Properties from Metal-Containing Polymers, pp. 1460-1463
Mark J. MacLachlan; Madlen Ginzburg; Neil Coombs; Thomas W. Coyle; Nandyala P. Raju; John E. Greedan; Geoffrey A. Ozin; Ian Manners
Superplastic Extensibility of Nanocrystalline Copper at Room Temperature, pp. 1463-1466
L. Lu; M. L. Sui; K. Lu
Room Temperature Magnetic Quantum Cellular Automata, pp. 1466-1468
R. P. Cowburn; M. E. Welland
Rippling Instability of a Collapsing Bubble, pp. 1468-1471
Rava da Silveira; Sahraoui Chaïeb; L. Mahadevan
Control of Thickness and Orientation of Solution-Grown Silicon Nanowires, pp. 1471-1473
Justin D. Holmes; Keith P. Johnston; R. Christopher Doty; Brian A. Korgel
Atomic-Scale Structure and Catalytic Reactivity of the RuO2(110) Surface, pp. 1474-1476
H. Over; Y. D. Kim; A. P. Seitsonen; S. Wendt; E. Lundgren; M. Schmid; P. Varga; A. Morgante; G. Ertl
Molecular Architecture and Evolution of a Modular Spider Silk Protein Gene, pp. 1477-1479
Cheryl Y. Hayashi; Randolph V. Lewis
Effects of Environment on Compensatory Mutations to Ameliorate Costs of Antibiotic Resistance, pp. 1479-1482
J. Björkman; I. Nagaev; O. G. Berg; D. Hughes; D. I. Andersson
Parental Care and Clutch Sizes in North and South American Birds, pp. 1482-1485
Thomas E. Martin; P. R. Martin; C. R. Olson; B. J. Heidinger; J. J. Fontaine
Translocation of C. elegans CED-4 to Nuclear Membranes during Programmed Cell Death, pp. 1485-1489
Fangli Chen; Bradley M. Hersh; Barbara Conradt; Zheng Zhou; Dieter Riemer; Yosef Gruenbaum; H. Robert Horvitz
Regulation of Cell Fate Decision of Undifferentiated Spermatogonia by GDNF, pp. 1489-1493
Xiaojuan Meng; Maria Lindahl; Mervi E. Hyvönen; Martti Parvinen; Dirk G. de Rooij; Michael W. Hess; Anne Raatikainen-Ahokas; Kirsi Sainio; Heikki Rauvala; Merja Lakso; José G. Pichel; Heiner Westphal; Mart Saarma; Hannu Sariola
General Acid-Base Catalysis in the Mechanism of a Hepatitis Delta Virus Ribozyme, pp. 1493-1497
Shu-ichi Nakano; Durga M. Chadalavada; Philip C. Bevilacqua
Translocation of Helicobacter pylori CagA into Gastric Epithelial Cells by Type IV Secretion, pp. 1497-1500
Stefan Odenbreit; Jürgen Püls; Bettina Sedlmaier; Elke Gerland; Wolfgang Fischer; Rainer Haas
Virus-Induced Neuronal Apoptosis Blocked by the Herpes Simplex Virus Latency-Associated Transcript, pp. 1500-1503
Guey-Chuen Perng; Clinton Jones; Janice Ciacci-Zanella; Melissa Stone; Gail Henderson; Ada Yukht; Susan M. Slanina; Florence M. Hofman; Homayon Ghiasi; Anthony B. Nesburn; Steven L. Wechsler
Porphyrin and Phthalocyanine Antiscrapie Compounds, pp. 1503-1506
Suzette A. Priola; Anne Raines; Winslow S. Caughey
Mirror-Image Confusion in Single Neurons of the Macaque Inferotemporal Cortex, pp. 1506-1508
J. E. Rollenhagen; C. R. Olson


AAAS News and Notes, p. 1509
Tiffany Ayers

Back Matter (35 pp.)

Previous Issue: New Series, Vol. 287, No. 5456, Feb. 18, 2000
Next Issue: New Series, Vol. 287, No. 5458, Mar. 3, 2000



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