The Ritter reaction has been successfully extended to the direct preparation of N-glycosidic bond-linked nonionic carbohydrate-based surfactants from carbohydrates and nitriles in the presence of trimethylsilyl trifluoromethanesulfonate (TMSOTf) and silver perchlorate (AgClO 4 ) on a high-speed

In response to a clinical vignette, non-PEM physicians were more likely to self-report the use of screening CT in pediatric trauma patients than PEM physicians.

The performances of 70 children, 35 from kindergarten and 35 from first grade, were studied on four auditory measures and one oral sensory discrimination task. Each group of 35 children included seven subjects with superior articulation, seven with deviant articulation and poor speech sound stimulability, seven with deviant articulation and good stimulability, seven with articulation defects and poor stimulability, and seven with articulation defects and good stimulability. Performances on a speech sound stimulability task were not found to be related to performances on any of the auditory measures and only slightly to the oral sensory task. Superior articulators had significantly better scores than the deviant and defectives on the oral sensory discrimination task, but scores on the auditory tasks were not significantly different. Comparison of the performances of /s/ and /r/ defectives revealed the latter group to be inferior on some auditory tasks compared with the superior articulators. Some relationships were found between subject performances on certain auditory tasks.

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This documentassessesand comparesthe environmentalimpactsof variousal-Ib ternativesfor remedial action at the Gunnisonura_i,;m mill tailingssite located O.S miles south of Gunnison, Colorado. The site covers 56 acres and contains 35 acres of tailings, 2 of the original mill buildings[tj and a water tower.