Costa

O. Costa de Beauregard, La Second Principe de la Science du Temps, De Seuil, Paris, 1963. 

Fernandez-Abedul, M Costa-Garcia, A. Anal Chim. Acta 1996, 328, 67-71. 

P. Buffa, V. Guarriero-Bobyleva, and R. Costa-Tiozzo, Fimride 6, 224 (1973). 

Radioactive tracers account for about 20% of the worldwide market for consumables and reagents for life science research. In 1994 the value was estimated at about 300 million. The principal fuU line manufacturers are Du Pont—NEN Research Products (Boston, Massachusetts) and Amersham International (Amersham, U.K.). These companies share roughly equaHy about 85% of the radiochemicals worldwide market. In addition to an extensive line of catalog products, these suppHers offer custom labeling and custom synthesis services. The rest of the market is shared by producers of a limited range of products or services, such as ICN Biomedicals (Costa Mesa, California) and American Radiolabeled Chemicals (St. Louis, Missouri). 

Jojoba. Jojoba oil [61789-91-1] is obtained from the seeds of the jojoba plant grown in semiarid regions of Costa Rica, Israel, Mexico, and the United States. The oil is made up of ca 80 wt % of esters of eicos-ll-enoic and docos-13-enoic acids, and eicos-ll- -l-ol, and docos-13- -l-ol, ca 17 wt % of other hquid esters, with the balance being free alcohols, free acids, and steroids. Jojoba oil is used primarily in the formulation of cosmetics. Hydrogenated jojoba oil is a wax used in candles and other low volume specialty apphcations. 

M. Klein and R. Costa, "Electrolytic Regenerative H2—O2 Secondary Fuel CeU," Proceedings of Space Technology Conference, ASME, June 1970. 

Costasem Seminar, Feb. 14—16, Costasem SA, San Jose, Costa Rica, 1990. 

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