Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 8 of 8 for “"Reference Dose"”.
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Theoretical Considerations in the Estimation of the Signal-to-Noise Crossover Dose
… risk assessment is the determination of the reference dose. The estimation of the point of departure plays an important role in the derivation of the reference dose. The method of benchmark dose has been widely employed in the determination of the point of departure. However, due to some …
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Moment Constraints in Radiation Therapy Planning Optimization Incorporating Patient-Specific Anatomical Geometry
… healthy structures. In inverse planning, dose-volume histogram (DVH) is a key concept for measuring and restricting collateral radiation damage to healthy tissues. Interpreting the DVH as a probability distribution, a framework is proposed to assess the deviation from a reference …
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Characterization of a 6 MV photon beam in terms of primary and scattered dose components
… linear accelerator into primary and scattered dose components in water. The two quantities that are necessary to define the primary beam component are a reference dose DR and a primary linear attenuation coefficient μ 0. DR describes the magnitude of the primary dose as a fraction of the …
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Verification of methodologies for estimating human exposure to high levels of mercury pollution in the environment
… were applied to simulate the daily Hg intake doses which were verified by comparing the estimates to those established from measured Hg concentrations in the hair of 289 participants. The results showed that the single-value deterministic method for simulating Hg exposure levels overestimated …
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Exposure Assessment of Mercury in Fish from Kentucky Surface Waters
… U.S. at this level. Also, they determined the reference dose of methylmercury to be 0.1 (J.g/kg of body weight/day. The result of categorizing Kentucky fishes according to EPA monthly risk-based fish consumption limits indicated that 22.8% of the fishes caught from lakes and 31.44% of the …
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Studies on the excretion of pesticides in human milk as a means of investigating exposure and assessing the risk to infants in Indonesia
… (ADI) for Dieldrin, 90% exceeded the acute reference dose for total DDT and 24% for Endosulfan.
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The Influence of Farm Advisory Services and Socio-Economic and Physical Factors on the Toxicity of Pesticides Used for Cotton and Peanuts in the Albemarle-Pamlico Watershed
The research undertaken in this study is an attempt to determine the influence of farm advisory services, socio-economic factors, and physical factors on the aggregate toxicity of pesticides used by cotton and peanut farmers in the Albemarle-Pamlico Watershed of Virginia and North Carolina. An …
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ASSESSMENT OF POLYCYCLIC AROMATIC HYDROCARBON BIOAVAILABILITY FROM SOIL USING THE JUVENILE SWINE MODEL
… ingested in soil compared to PAHs ingested in reference dose media, leading to environmental cleanup guidelines that are potentially too conservative. This research intended to use the juvenile swine model to assess PAH bioavailability from impacted soil to better inform bioavailability …