Claudiu Lungu

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INTRODUCTION The United Nations has proposed the Globally Harmonized System (GHS) of Classification and Labelling of Chemicals to make hazard communication more uniform and to improve comprehension. METHOD Two experiments were conducted to test whether the addition of hazard and precautionary pictograms to safety data sheets and product labels would(More)
Mathematical modeling is being increasingly used as a means for assessing occupational exposures. However, predicting exposure in real settings is constrained by lack of quantitative knowledge of exposure determinants. Validation of models in occupational settings is, therefore, a challenge. Not only do the model parameters need to be known, the models also(More)
The midbrain dopamine system mediates normal and pathologic behaviors related to motor activity, attention, motivation/reward and cognition. These are complex, quantitative traits whose variation among individuals is modulated by genetic, epigenetic and environmental factors. Conventional genetic methods have identified several genes important to this(More)
Protection of intellectual property against unwanted tampering is a pressing issue to many content providers. Access to sensitive information typically takes the form of copyright violations. To address this issue, owners typically employ different protection mechanisms. Many are weak (e.g., they have single points of failure), rendering them vulnerable to(More)
PS 404‐14 Evaluation of the Benefit of the User Seal Check on N95 Filtering Facepiece Respirator Fit: A Pilot Study D. Viscusi, Z. Zhuang, R. Shaffer, NIOSH, Pittsburgh, PA; M. Bergman, URS Corp., Pittsburgh, PA. Objective: The objective of this study was to better understand the benefit of the user seal check (USC) step in the N95 filtering facepiece(More)
Ozone is an extremely reactive gas molecule composed of three oxygen atoms. The ground-level ozone is formed when nitrogen oxides and volatile organic compounds, released mainly from burning of gasoline or coal, come into contact with sunlight. Ozone is also generated and used in industrial settings such as purification of drinking water, waste treatment,(More)
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