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Resources:
Sigma-Aldrich
Manufacturer of laboratory reagents in all fields of life sciences, including biochemistry, molecular biology, cell culture and cell biology.
http://www.sigmaaldrich.com/
Sigma Xi
The Scientific Research Society is a non-profit membership society of more than 80,000 scientists and engineers
http://www.sigmaxi.org/
Sigma Corporation of America
Maker of cameras, lenses, and flash units; FAQ, news, and where-to-buy information.
http://www.sigmaphoto.com/
Sigma Designs, Inc.
Designs, manufactures and markets multimedia products, including a technology which provides full-screen, full-motion video combined with stereo audio play back for desktop personal computers. (Nasdaq: SIGM).
http://www.sigmadesigns.com/
Sigma Theta Tau International Honor Society of Nursing
Honor society. Includes membership information, news, conference schedule, awards, educational resources, and strategic plan.
http://www.nursingsociety.org/
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