Table Of Contents: Volume 84, Number 29: July 17, 2006

COVER STORY
Epigenetics
Chemical signposts on the genome's chromatin landscape turn genes on and off.
COVER: The cell's basic DNA packaging unit, the nucleosome, is shown in an artist's rendition. Courtesy of Joseph Roland
News of the Week

A Comet's Chemical Composition
Space-based IR telescope reveals assortment of substances in Tempel 1.
Vertellus Debuts
Arsenal Capital combines Reilly and Rutherford to form new specialties firm.
Silver Bromide Shines In Bacteria-Fighting Coating
Polymer-nanoparticle composite could ward off infections associated with implanted biomedical devices.
EPA's Dioxin Review Is Criticized
National Research Council report says agency may have overstated cancer risks.
Environment
China Calls Its Chemical Industry Unsafe.
China Wins Chemistry Olympiad
Taiwan, South Korea, and the Russian Federation tie for second place.
Psilocybin Studies Turn A New Leaf
Scientists aim to set psychedelics research on a sound scientific footing.
Dow, BASF Pursue Joint Ventures
Firms' projects aim to increase presence in regions where chemical production is growing fast.
Pharma Deal
German software mogul is leading the merger of two biopharma companies into one firm.
Business (Subscriber Content)
Changing Tides
Breakthroughs in manufacturing are making large-scale synthesis of peptides a viable proposition.

New Lines Drawn At Chemspec Europe
Exhibitors have segregated fine and specialties operations, but both sectors still matter.
Stock Indexes Fall In Second Quarter
Shares of most chemical and pharmaceutical companies drop; shares of biotech firms plunge.
Government & Policy (Subscriber Content)

Uranium Plant Gets License
New Mexico centrifuge uranium enrichment plant seen as key to expanding U.S. nuclear power industry.
Painting A Picture Of Global R&D
UN organization and Toronto researchers report on spending, gender, and immigration trends.
Science & Technology (Subscriber Content)
Still Blazing Trails At 75
Gordon Research Conferences celebrate a rich history of nurturing the frontiers of science.
Education
Mixing It Up
New courses combine multiple disciplines in single classroom.
ACS News
Green Summer School
Graduate students, postdocs deepen their knowledge of chemistry and engineering that is benign by design.
Meetings

Preliminary Program - 232nd ACS National Meeting
Listing of technical symposia, general meeting information, and more for San Francisco, Sept. 10–14.
Employment
Chemical Informatics
Informaticians help scientists cope with data overload.
The Departments
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