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How to Advertise     News Of The Week Lakes on Mars Cover Story World Chemical Outlook Government & Policy Air Pollution Research Science & Technology Most Proficient Enzyme Table of Contents December 11, 2000 Volume 78, Number 50 CENEAR 78 50 p. 3 NEWS OF THE WEEK Radical Film Photosensitization concept doubles sensitivity of photographic materials. Chemistry Chief To Leave NSF Search is on for new division director, as Osteryoung announces retirement. StarLink Still Plagues Aventis Federal agencies ponder next steps while farmers seek damages. Hudson River PCB Cleanup EPA calls for $500 million dredging project; GE mounts brisk challenge. ICI Completes Transformation Firm sells off the last of its commodities businesses for $470 million. Learning Math and Science Eighth graders, while above the international average, don't score as well as they did in fourth grade. Lakes on Mars Sedimentary rock layers provide best evidence yet of watery past. BUSINESS Business Concentrates e-Business COVER STORY World Chemical Outlook Uncertainty in U.S. economy casts cloud over continued worldwide industry growth. Ending an Era General Chemical is closing the last Solvay-process soda ash plant in North America. GOVERNMENT & POLICY Government Concentrates Air Pollution Research New EPA lab measures human health effects of air contaminants to support the agency's clean air regulations. Chemical Hindsights Why do developers and advocates of agbiotech make things more difficult for themselves than they need be? SCIENCE/TECHNOLOGY Science/Technology Concentrates New Lab at Oxford Chemistry department strikes innovative deal with venture capitalist to finance construction of $100 million lab. R&D Paradigm Shift  Industrial R&D emphasizes alliances, moves from improvement of existing products to creation of new ones. Most Proficient Enzyme Orotidine 5'-monophosphate decarboxylase owes its effect to transition-state stabilization. "Molecular Break Lights" Fragments of hairpin-shaped DNAs break off and light up in the presence of DNA-cleaving agents. Taxol Biosynthesis Four research groups reveal remarkable single-step mechanism. ACS COMMENT Make A Difference: Join The ACS Legislative Action Network ACS NEWS Chemical Landmark A century of nucleic acid and protein chemistry at Rockefeller University is celebrated. THE DEPARTMENTS Editor's Page Software/Online Briefs Awards People   Newscripts

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