A method is described for ochratoxin B analysis, which is adapted to the earlier described method of ochratoxin A analysis, using carboxypeptidase A (K. Hult and S. Gatenbeck, J. Assoc. Off. Anal. Chem. 59:128-129, 1976). The fluorescence spectra of ochratoxins A and B coincide too much to allow direct discrimination of the two compounds. A method using the differences in kinetic parameters of ...

By “listening in” to ongoing dialogues between customers and Web-based virtual advisers (e.g., Kelley Blue Book’s Auto Choice Advisor), the authors identify new product opportunities based on new combinations of customer needs. The data are available at little incremental cost and provide the scale necessary for complex products (e.g., 148 trucks and 129 customer needs in the authors’ applicati...

The intermediate role of hydroxylamine in nitrate assimilation has been suggested by observations that different organisms form ammonia from hydroxylamine in vivo, and that hydroxylamine occurs in nutrient media and cells. In further support are recent investigations describing enzymatic preparations which catalyze the reduction of hydroxylamine to ammonia. Taniguchi et al. (J. Biochem. (Japan)...

Many insects are able to detect the polarization pattern of the blue sky and use this capability for spatial orientation (Wehner R 1984, Annu. Rev. Entomol. 29, 277-298; Wehner R, Michel B and Antonsen P 1996, J. Exp. Biol. 199, 129-140). Ommatidia specialized to detect skylight polarization are confined to a small dorsal rim area (DRA) of the compound eye. The desert locust Schistocerca gregar...

CAN J ANESTH 55: 6 www.cja-jca.org June, 2008 References 1 Melarkode K, Prinzhausen H. Hemoglobin M variant and congenital methemoglobinemia: methylene blue will not be effective in the presence of hemoglobin M. Can J Anesth 2008; 55: 129–30. 2 Schweitzer SA. Spurious pulse oximeter desaturation due to methaemoglobinaemia. Anaesth Intensive Care 1991: 19: 269–71. 3 Cassady G. Transcutaneous mon...

The aim of this study was to compare and analyze the site-specific accuracy of mixture of lipiodol and methylene blue (MLM) (0.6 ml, 1:5) and pure methylene blue (0.5 ml) on the rabbit lungs. In this study, CT-guided percutaneous injection of MLM and methylene blue. Compare the staining degree by biopsy of lung tissue. Use 4 points system to evaluate the site-specific accuracy at 6h and 24 h af...