We measured morphine and codeine in commercially available poppy seeds and in serum and urine samples from healthy adults who had ingested these poppy seeds. Four brands of black poppy seeds, examined by gas chromatography-mass spectroscopy (GC-MS) with deuterated internal standards, contained from 17 to 294 of morphine and 3 to 14 g of codeine per gram of seeds. Morphine was detected by GC-MS ...

Vol. XLII (February 2005), 83–95 83 *J. Miguel Villas-Boas is Professor of Business Administration, Haas School of Business, University of California, Berkeley (e-mail: [email protected]). Ying Zhao is Assistant Professor of Marketing and Wei-Lun Fellow, Department of Marketing, Hong Kong University of Science and Technology (e-mail: [email protected]). The authors gratefully acknowledge co...

An aromatic amino acid decarboxylase DNA fragment was generated from opium poppy (Papaver somniferum L.) genomic DNA by the PCR using primers designed from conserved amino acid sequences of other aromatic amino acid decarboxylase genes. Using this fragment as a probe, a genomic clone was isolated that encodes a new member of the opium poppy tyrosine/3,4-dihydroxyphenylalanine decarboxylase gene...

A major toxicological challenge is distinguishing whether morphine in urine, in the absence of 6-monoacetylmorphine (6-MAM), originates from 'street' heroin use or poppy seed ingestion. Manufacturing byproducts from the synthesis of illicit heroin include those that originate from the reaction of acetic anhydride with the alkaloid impurity, thebaine, which undergoes skeletal rearrangement, resu...

H. Yu, C. Wu, D. Wu, and J. Z. Yu Atmospheric, Marine and Coastal Environment Program, Division of Environment, Hong Kong University of Science&Technology, Clear Water Bay, Kowloon, Hong Kong, China Atmospheric Research Center, HKUST Fok Ying Tung Graduate School, Nansha, Guangzhou 511458, China Institute of Tropical and Marine Meteorology, China Meteorological Administration, Guangzhou 510058,...

W hereas several investigatorP have attempted to measure occlusion for epidemiologic purposes, there is no generally acceptable method. Variations in terminology, concepts, and methodology can be cited as the major reasons for the present lack of a universally acceptable index of occlusion. For these reasons, a study was undertaken to attempt to develop an index of occlusion, This index is call...

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We investigate the magnetic moments of the SU(3) octet baryons in the framework of the SU (3) semibosonized Nambu–Jona–Lasinio model. The ro-tational 1/N c corrections and strange quark mass in linear order are taken into account. We derive general relations between magnetic moments of the SU(3) octet baryons, based on the symmetry of our model. These relations indicate that higher order correc...