The quotient of a biautomatic group by a subgroup of the center is shown to be biautomatic. The main tool used is the Neumann-Shapiro triangulation of S, associated to a biautomatic structure on Zn. As an application, direct factors of biautomatic groups are shown to be biautomatic. Biautomatic groups form a wide class of finitely presented groups with interesting geometric and computational pr...

OBJECTIVE Poisoning events, including exposures to hazardous materials, can involve multiple victims. Regional poison centers often are contacted in such events involving multiple victims. METHODS We searched our poison center database over a nine-year time period for all calls involving a poisoning event in which more than two people were exposed to the same substance. We then matched each p...

The Pharmacy Services Department of King Khalid University Hospital (KKUH) established a poison control service in conjunction with their drug information center in October 1983. The primary goal of the poison information service was to offer expert advice from well-trained clinical pharmacists in the management of poisoning cases throughout the Kingdom of Saudi Arabia. The service was made ava...

In 1983, the American Association of Poison Control Centers (AAPCC) piloted a project to collect epidemiological data on poison exposures reported to poison centers nationwide.’ Sixteen participating poison centers reported 25 1,012 human poison exposures during that year. Forty-seven centers participated in the National Data Collection System in 1984, reporting 730,224 human poison exposures.2...

Objective This paper describes analyses of health seeking behaviors from two surveillance datastreams: Poison Control Center (PCC) calls and Emergency Department (ED) visit records. These analyses were conducted in order to quantify behaviors following the development of symptoms after water contamination exposure and to understand the motivation, decision-making and timing behind healthcare se...