منابع مشابه
Pollutants Hazard Potential and Environmental Vulnerability of Qarah Su River
The main purpose of the study is determination of the pollutants hazard potential as well as environmental vulnerability of Qarah Su River. First the most significant pollutant sources in the Qarah Su river watershed were identified and then accordingly the pollution hazard potential rate was calculated in Universal Ranking System Model setting. Then, by generalizing the algebraic sum of the re...
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This review is concerned with the concentrations of lead in human whole blood, erythrocytes, plasma, serum, soft tissues, bone, and urine. The extent to which redistribution of some of the bound lead occurs is outlines. The effects of lead on enzyme activities and on the accumulation of metabolic intermediates in the blood and urine are described. A brief section deals with the range of signs a...
متن کاملLaser and Its Hazard Potential
Laser-induced eye injuries have been reported more and more often in the past years, yet the laser is not a modern invention. Based on stimulated emission, the wavelength, energy dose and pulse duration of the laser are the determining factors for its possible hazard potential. The eye, which is the most vulnerable body part for laser radiation, can be affected. As medical treatment is discusse...
متن کاملUsing a facemask during anaesthesia
Anna Negus Anaesthetic Fellow Starship Hospital Grafton Auckland New Zealand INTRODUCTION The facemask has been used since the origins of anaesthesia and it remains an essential and versatile piece of equipment. It offers a simple, non-invasive method for delivering both oxygen and anaesthetic gases and vapours to the patient and it is widely used for both induction and maintenance of general a...
متن کاملEarly and late facemask therapy.
The purpose of this study was to determine the dental and skeletal effects of facemask therapy, and to evaluate the effect of age on treatment response. The material consisted of lateral cephalometric radiographs of 34 subjects with Class III malocclusions treated with a Delaire type facemask. Two groups of 17 patients each were formed: an early (six girls, 11 boys) and a late treatment group (...
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ژورنال
عنوان ژورنال: Anaesthesia
سال: 2007
ISSN: 0003-2409,1365-2044
DOI: 10.1111/j.1365-2044.1988.tb05646.x