science · sectionofamural (dated 700a.d.)foundin anarcheo- logical siteatcacaxtia,...
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ISSN 0036-807512 JULY 1996VOLUME 273NUMBER 5272 SCIENCE AMERICAN
AssOCIATION FORTHEADVANCEMENT OFSCIENCE
NEWSThe Decline of German UniversitiesForeign Students Bypassing Germany
Disputed Results Now Just a Footnote
Panel Backs Joint Bion Mission
Earmark for New Ship Puts AcademicsOver Pork Barrel
Italian Bioethics: Embryo ReportOpens Old Wounds
Publisher Draws Censorship Charge
Tobacco Studies: UC Objects toResearch Restrictions
Silver Thread Boosts Current Capacity
Unruly Sun Emerges inSolar Observatory's First ResultsSpying On the Sun-on the Cheap
Evolutionary and Systematic BiologistsConverge
Twinkle, Twinkle, Little Quasar
THIS WEEK IN SCIENCE
EDITORIALScientific Imagination and IntegrityK. J. Ryan
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LETTERS 165Not the "Dark Ages": W. C. Barker and R. S. Ledley* Dinosaurs and Their Youth: M. A. Norell andJ. M. Clark; N. R. Geist and T. D. Jones * TobaccoResearch: J. F. Glenn; J. Cohen; T. D. Sterling *
Uninterrupted Electric Power: D. N. Baker and J.G. Kappenman
SCIENCESCOPE 171
Protein Matchmaker May LeadNew Gene Therapy to the Altar
RANDOM SAMPLES 191High Court Won't Review Hopwood * ManateeKiller Revealed * Canada Considers Gene Law
BOOK REVIEWS 196Bendectin and Birth Defects, reviewed by S.Bartlett Foote * The Mismeasure of Man * TheWorld According to Wavelets * Wavelets * Vignette* Books Received
PRODUCTS & MATERIALS 262
SCIENCE'S NEXT WAVE 265Bioinformatics: New Frontier Calls Young Scien-tists
r 183
SPECIAL NEWS REPORTPutting Prions to the TestFlipping YeastPrusiner and the Press
184186188
PERSPECTIVESIf a Tree Falls in the Forest... 201M. Keller, D. A. Clark, D. B. Clark, A. M.Weitz, E. Veldkamp
The Shrewd Grasp of RNA r 202PolymeraseR. Landick and J. W. Roberts
Rho Returns: Its Targets in Focal O 203AdhesionsH. Bussey
ARTICLENew Designs of MacroporousPolymers and Supports: From Separationto BiocatalysisF. Svec and J. M. J. Frechet
205
MWOWWWWWWW AAAS Board ofRita R. ColwellRetiring President, Chairman
Jane LubchencoPresident
Mildred S. DresselhausPresident-elect
Directors __Sheila JasanoffWilliam A. Lester Jr.Simon A. LevinMarcia C. LinnMichael J. NovacekAnna C. RooseveltJean E. TaylorNancy S. Wexler
William T. GoldenTreasurer
Richard S. NicholsonExecutive Officer
* SCIENCE (ISSN 0036-8075) is published weekly on Friday, except the last week inDecember, by the American Association for the Advancement of Science, 1200 New YorkAvenue, NW, Washington, DC 20005. Periodicals Mail postage (publication No. 484460) paid atWashington, DC, and additional mailing offices. Copyright © 1996 by the American Association forthe Advancement of Science. The title SCIENCE is a registered trademark of the AAAS. Domesticindividual membership and subscription (51 issues): $102 ($55 allocated to subscription). Domesticinstitutional subscription (51 issues): $250. Foreign postage extra: Mexico, Caribbean (surface mail)$55; other countries (air assist delivery) $90. First class, airmail, student, and emeritus rates onrequest. Canadian rates with GST available upon request, GST #1254 88122. Printed in the U.S.A.
SCIENCE * VOL. 273 * 12 JULY 1996
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Section of a mural (dated 700 A.D.) found in an archeo-logical site at Cacaxtia, Mexico [under protection of theInstituto Nacional de Antropologia e Historia (INAH)].The quetzal (70 centimeters, head to tail) is painted withMaya blue dye, a dye first discovered at Mayan sites. It is
.COVER
a mixture of clay, indigo, and metal particles in a silicatesubstrate. The clay and indigo form a superlattice, andscattered metal particles disperse light, producing thislong-lasting blue color. See page 223. [Photo: Autho-rized reproduction of the INAH, under its responsibility.]
RESEARCH ARTICLE
Transcription Processivity: VI 21 1
Protein-DNA Interactions HoldingTogether the Elongation ComplexE. Nudler, E. Avetissova, V. Markovtsov, A.Goldfarb
REPORTS
Compression of Ice to 2 0 Gigapascals: 218
Infrared Evidence for a SymmetricHydrogen-Bonded PhaseA. F. Goncharov, V. V. Struzhkin, M. S.Somayazulu, R. J. Hemley, H. K. Mao
220Making DNA AddF. Guarnieri, M. Fliss, C. Bancroft
Maya Blue Paint: An Ancient 223Nanostructured MaterialM. Jos6-Yacamdn, L. Rend6n, J. Arenas, M. C.Serra Puche
Formation of Atomically Flat Silver 226Films on GaAs with a "Silver Mean"Quasi PeriodicityA. R. Smith, K.-J. Chao, Q. Niu, C.-K. Shih
Mechanism of Suppression of 228Cell-Mediated Immunity by Measles VirusC. L. Karp, M. Wysocka, L. M. Wahl, J. M.Ahearn, P. J. Cuomo, B. Sherry, G. Trinchieri,D. E. Griffin
Structure of the Amino-Terminal 231Core Domain of the HIV- Capsid ProteinR. K. Gitti, B. M. Lee, J. Walker, M. F. Summers,S. Yoo, W. I. Sundqulist
Polar Overdominance at the Ovine 236callipyge LocusN. E. Cockett, S. P. Jackson, T. L. Shay, F.Farnir, S. Berghmans, G. D. Snowder, D. M.Nielsen, M. Georges
Structure of the FKBP 1 2-Rapamycin P' 239Complex Interacting with Binding Domainof Human FRAP
J. Choi, J. Chen, S. L. Schreiber, J. Clardy
Long-Term Lymphohematopoietic 242Reconstitution by a Single CD34-Low/Negative Hematopoietic Stem CellM. Osawa, K.-i. Hanada, H. Hamada, H. Nakauchi
Regulation of Myosin Phosphatase by F 245Rho and Rho-Associated Kinase (Rho-Kinase)K. Kimura, M. Ito, M. Amano, K. Chihara, Y.Fukata, M. Nakafuku, B. Yamamori, J. Feng, T.Nakano, K. Okawa, A. Iwamatsu, K. Kaibuchi
Bipartite Ca2'-Binding Motif in 248C2 Domains of Synaptotagmin andProtein Kinase CX. Shao, B. A. Davletov, R. B. Sutton, T. C.Sudhof, J. Rizo
Platelet-Mediated Lymphocyte Delivery 252to High Endothelial VenulesT. G. Diacovo, K. D. Puri, R. A. Warnock, T.A. Springer, U. H. von Andrian
TECHNICAL COMMENTS
On Catching Fly Balls 256J. L. Dannemiller, T. G. Babler, B. L. Babler; T.M. Jacobs, M. D. Lawrence, K. Hong, N. GiordanoJr., N. Giordano Sr.; M. K. McBeath, D. M.Shaffer, M. K. Kaiser
252Homing to thelymph nodes
O Indicates accompanying feature X0 -XChange of address: allow 4 weeks, giving old and new addresses and 8-digit account number.Postmaster: Send change of address to Science, P.O. Box 1811, Danbury, CT 06813-1811.Single copy sales: $7.00 per issue prepaid includes surface postage; bulk rates on request.Authorization to photocopy material for internal or personal use under circumstances not fallingwithin the fair use provisions of the Copyright Act is granted by AAAS to libraries and other users
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On the WebBioinformatics As a Careerhttp://sci.aaas.org/nextwave/niches-bioinformatics/
SCIENCE * VOL. 273 * 12 JULY 1996
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273 (5272)
(5272), 157-263.273Science
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