G. Barrett

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Foreword The Washington State Department of Health (DOH) prepared this health consultation under a cooperative agreement with the Agency for Toxic Substances and Disease Registry (ATSDR). ATSDR is part of the U.S. Department of Health and Human Services. ATSDR is responsible for health issues related to hazardous substances The purpose of a health(More)
INTRODUCTION The Odonata (dragonflies and damselflies) of Halton Region have been historically under-surveyed, especially when compared with both odonate work in nearby areas (in 2000 Peel Region had 71 documented species, Metropolitan Toronto had 81, while Halton had only 49 [Cading & Brownell 2000)), and with work within Halton on other groups (e.g.(More)
Using audiovisual tapes of 150 actual dental treatment sessions, five dental teams working with handpieces positioned in the 8-o'clock location were compared with five dental teams working with hand pieces positioned in the 12-o'clock location. Criteria used for analysis were frequency and duration of instrument transfer, critical incidents that interfered(More)
The detailed timing and recording of the sequence of tasks for dental restorative procedures was used to evaluate the effects of the location of the hand-piece and three-way syringe on the dental team performance. Sixty-four audiovisual tapes of ten dental teams, performing complete, actual restorative procedures, were made in two dental operatories that(More)
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