A push-pull ventilation system is effective for hazardous material exhaustion. Although a push-pull ventilation system has advantages over a local exhaust hood, some laborious adjustments are required. The pertinence of the adjustments is uncertain because it is difficult to evaluate the performance of a push-pull ventilation system quantitatively. In this study, a measurement of the capture ef...

The action of growth substances in causing cell elongation is closely linked to respiration, and many respiratory inhibitors also inhibit growth (COMMONER and THIMANN, 3, BONNER, 1, 2). In the study -of the way in which growth substances act to bring about growth it is therefore useful to have inhibitors which will suppress the action of growth substances without affecting respiration of the tr...

Since the late 1990s the debate in The Netherlands on the transport of hazardous materials by rail has intensified. The reason for this debate is the fact that most of the Dutch railway nodes are located in city centres. Risk is described by a formula in which the probability of an accident is multiplied by its effect. Although the probability might not be large, the effects of an accident can ...

conclusions in psychoactive substance dependents, serum routine biochemistry parameters can be used to predict the need for intensive monitoring and treatment programs. results there was a statistically significant difference in the gamma-glutamyl transferase (ggt), uric acid, creatinine, urea, albumin, aspartate aminotransferase (ast) medians between the dependent and control groups (p < 0.05)...

background: ingestion of caustic agents can cause serious damages of the upper gastrointestinal tract and in some cases this kind of poisoning may have fatal outcomes. acute caustic intoxications are one of the main problems in the modern clinical toxicology since they mainly affect young people with psychic disorders, suicidal intent, and alcohol addiction. text: in diagnostic evaluation of th...

Specialities (Syntex) Co. Inc., New York City, for corticosterone and hydrocortisone; and to Dr W. J. Tindall of Organon Laboratories Ltd. for deoxycorticosterone. Dr K. Hallas-M0ller ofthe Novo Terapeutisk Laboratorium, Copenhagen, kindly gave us generous supplies of crystalline insulin free from glucagon. The technical assistance of Messrs S. C. Watson and B. W. E. Peaple is much appreciated,...

Annex 12 addresses definitions, general principles, programs, monitoring, early warning system, human health, research, and reporting. This annex embraces the philosophy of zero discharge and the goal of virtual elimination, and the Parties have achieved considerable success in controlling direct, point source discharges of toxic chemicals to the lakes. The Commission finds, however, that there...

Promethazine (phenergan) has two methyl groups, which in these derivatives are associated with strong antihistaminic power, while chlorpromazine is a propylamine phenothiazine, which has more marked central nervous system effects but only one-hundredth of the antihistamine potency of promezathine. The Department of Pharmacology at Oxford has pointed out (Burns, 1948; Burns and Dutta, 1948; Dews...