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Laboratory animals and respiratory allergies: The prevalence of allergies among laboratory animal workers and the need for prophylaxis
(Hospital Clinicas, Univ Sao PauloSao PauloBrasil, 2013)
Smear layer removal for collagen fiber exposure after citric acid conditionings
(2010-12-01)
Aim: The aim of the present study was to compare the removal of the smear layer and exposure of collagen fibers of the root surface following the application of five citric acid solution concentrations. Methods and Materials: ...
Urinary Mutagenicity in Chemical Laboratory Workers Exposed to Solvents
(Japan Soc Occupational Health, 2008-09-01)
Solvents represent an important group of environmental pollutants to which people are exposed daily in the workplace. The physico chemical properties of solvents may result in disturbances to cellular structures, including ...
Urinary Mutagenicity in Chemical Laboratory Workers Exposed to Solvents
(Japan Soc Occupational Health, 2008-09-01)
Solvents represent an important group of environmental pollutants to which people are exposed daily in the workplace. The physico chemical properties of solvents may result in disturbances to cellular structures, including ...
Thermal degradation of geomembranes after exposure to heat
(Millpress Science Publishers, 2006-01-01)
HDPE and PVC geomembranes are sensitive to changes in their properties when in contact with high temperatures. The effects of hot temperature on polymeric geomembranes are assessed by the ASTM D794 and ASTM D5721.This paper ...
Thermal degradation of geomembranes after exposure to heat
(Millpress Science Publishers, 2006-01-01)
HDPE and PVC geomembranes are sensitive to changes in their properties when in contact with high temperatures. The effects of hot temperature on polymeric geomembranes are assessed by the ASTM D794 and ASTM D5721.This paper ...
Laboratory diagnosis of toluene-based inhalants abuse
(Taylor & Francis Inc, 2007-06-01)
Toluene is the main substance contained in products used as inhalants. the frequent abuse of toluene-based inhalants requires the definition of a simple laboratory parameter that allows acute exposure assessment. This study ...
UV exposure of polymeric geomembranes
(Zhejiang Univ Press, 2008-01-01)
The break of polymer chemical bonds may occur due to penetration of sun short wavelengths. In sanitary landfills for instance, ultraviolet radiation affects uncovered materials and can be dangerous during the installation ...