The Experts below are selected from a list of 11016 Experts worldwide ranked by ideXlab platform
Chungmin Liao - One of the best experts on this subject based on the ideXlab platform.
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health risk assessment on human exposed to environmental polycyclic aromatic hydrocarbons pollution sources
Science of The Total Environment, 2006Co-Authors: Szuchich Chen, Chungmin LiaoAbstract:To assess how the human exposure to environmental carcinogenic polycyclic aromatic hydrocarbons (PAHs) pollution sources generated from industrial, traffic and rural settings, we present a probabilistic risk model, appraised with reported empirical data. A probabilistic risk assessment framework is integrated with the potency equivalence factors (PEFs), age group-specific Occupancy Probability and the incremental lifetime cancer risk (ILCR) approaches to quantitatively estimate the exposure risk for three age groups of adults, children, and infants. The benzo[a]pyrene equivalents based PAH concentrations in rural, traffic, and industrial areas associated with age group-specific Occupancy Probability at different environmental settings are used to calculate daily exposure level through inhalation and dermal contact pathways. Risk analysis indicates that the inhalation-ILCR and dermal contact-ILCR values for adults follow a lognormal distribution with geometric mean 1.04 � 10 � 4 and 3.85 � 10 � 5 and geometric standard deviation 2.10 and 2.75, respectively, indicating high potential cancer risk; whereas for the infants the risk values are less than 10 � 6 , indicating no significant cancer risk. Sensitivity analysis indicates that the input variables of cancer slope factor and daily inhalation exposure level have the greater impact than that of body weight on the inhalation-ILCR; whereas for the dermalILCR, particle-bound PAH-to-skin adherence factor and daily dermal exposure level have the significant influence than that of body weight. D 2005 Elsevier B.V. All rights reserved.
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health risk assessment on human exposed to environmental polycyclic aromatic hydrocarbons pollution sources
Science of The Total Environment, 2006Co-Authors: Szuchich Chen, Chungmin LiaoAbstract:To assess how the human exposure to environmental carcinogenic polycyclic aromatic hydrocarbons (PAHs) pollution sources generated from industrial, traffic and rural settings, we present a probabilistic risk model, appraised with reported empirical data. A probabilistic risk assessment framework is integrated with the potency equivalence factors (PEFs), age group-specific Occupancy Probability and the incremental lifetime cancer risk (ILCR) approaches to quantitatively estimate the exposure risk for three age groups of adults, children, and infants. The benzo[a]pyrene equivalents based PAH concentrations in rural, traffic, and industrial areas associated with age group-specific Occupancy Probability at different environmental settings are used to calculate daily exposure level through inhalation and dermal contact pathways. Risk analysis indicates that the inhalation-ILCR and dermal contact-ILCR values for adults follow a lognormal distribution with geometric mean 1.04 � 10 � 4 and 3.85 � 10 � 5 and geometric standard deviation 2.10 and 2.75, respectively, indicating high potential cancer risk; whereas for the infants the risk values are less than 10 � 6 , indicating no significant cancer risk. Sensitivity analysis indicates that the input variables of cancer slope factor and daily inhalation exposure level have the greater impact than that of body weight on the inhalation-ILCR; whereas for the dermalILCR, particle-bound PAH-to-skin adherence factor and daily dermal exposure level have the significant influence than that of body weight. D 2005 Elsevier B.V. All rights reserved.
Szuchich Chen - One of the best experts on this subject based on the ideXlab platform.
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health risk assessment on human exposed to environmental polycyclic aromatic hydrocarbons pollution sources
Science of The Total Environment, 2006Co-Authors: Szuchich Chen, Chungmin LiaoAbstract:To assess how the human exposure to environmental carcinogenic polycyclic aromatic hydrocarbons (PAHs) pollution sources generated from industrial, traffic and rural settings, we present a probabilistic risk model, appraised with reported empirical data. A probabilistic risk assessment framework is integrated with the potency equivalence factors (PEFs), age group-specific Occupancy Probability and the incremental lifetime cancer risk (ILCR) approaches to quantitatively estimate the exposure risk for three age groups of adults, children, and infants. The benzo[a]pyrene equivalents based PAH concentrations in rural, traffic, and industrial areas associated with age group-specific Occupancy Probability at different environmental settings are used to calculate daily exposure level through inhalation and dermal contact pathways. Risk analysis indicates that the inhalation-ILCR and dermal contact-ILCR values for adults follow a lognormal distribution with geometric mean 1.04 � 10 � 4 and 3.85 � 10 � 5 and geometric standard deviation 2.10 and 2.75, respectively, indicating high potential cancer risk; whereas for the infants the risk values are less than 10 � 6 , indicating no significant cancer risk. Sensitivity analysis indicates that the input variables of cancer slope factor and daily inhalation exposure level have the greater impact than that of body weight on the inhalation-ILCR; whereas for the dermalILCR, particle-bound PAH-to-skin adherence factor and daily dermal exposure level have the significant influence than that of body weight. D 2005 Elsevier B.V. All rights reserved.
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health risk assessment on human exposed to environmental polycyclic aromatic hydrocarbons pollution sources
Science of The Total Environment, 2006Co-Authors: Szuchich Chen, Chungmin LiaoAbstract:To assess how the human exposure to environmental carcinogenic polycyclic aromatic hydrocarbons (PAHs) pollution sources generated from industrial, traffic and rural settings, we present a probabilistic risk model, appraised with reported empirical data. A probabilistic risk assessment framework is integrated with the potency equivalence factors (PEFs), age group-specific Occupancy Probability and the incremental lifetime cancer risk (ILCR) approaches to quantitatively estimate the exposure risk for three age groups of adults, children, and infants. The benzo[a]pyrene equivalents based PAH concentrations in rural, traffic, and industrial areas associated with age group-specific Occupancy Probability at different environmental settings are used to calculate daily exposure level through inhalation and dermal contact pathways. Risk analysis indicates that the inhalation-ILCR and dermal contact-ILCR values for adults follow a lognormal distribution with geometric mean 1.04 � 10 � 4 and 3.85 � 10 � 5 and geometric standard deviation 2.10 and 2.75, respectively, indicating high potential cancer risk; whereas for the infants the risk values are less than 10 � 6 , indicating no significant cancer risk. Sensitivity analysis indicates that the input variables of cancer slope factor and daily inhalation exposure level have the greater impact than that of body weight on the inhalation-ILCR; whereas for the dermalILCR, particle-bound PAH-to-skin adherence factor and daily dermal exposure level have the significant influence than that of body weight. D 2005 Elsevier B.V. All rights reserved.
Allan H Macdonald - One of the best experts on this subject based on the ideXlab platform.
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double Occupancy errors adiabaticity and entanglement of spin qubits in quantum dots
Physical Review B, 2001Co-Authors: John Schliemann, Daniel Loss, Allan H MacdonaldAbstract:Quantum gates that temporarily increase singlet-triplet splitting in order to swap electronic spins in coupled quantum dots lead inevitably to a finite double-Occupancy Probability for both dots. By solving the time-dependent Schr\"odinger equation for a coupled dot model, we demonstrate that this does not necessarily lead to quantum computation errors. Instead, the coupled dot ground state evolves quasiadiabatically for typical system parameters so that the double-Occupancy Probability at the completion of swapping is negligibly small. We introduce a measure of entanglement that explicitly takes into account the possibilty of double occupancies and provides a necessary and sufficient criterion for entangled states.
John Schliemann - One of the best experts on this subject based on the ideXlab platform.
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double Occupancy errors adiabaticity and entanglement of spin qubits in quantum dots
Physical Review B, 2001Co-Authors: John Schliemann, Daniel Loss, Allan H MacdonaldAbstract:Quantum gates that temporarily increase singlet-triplet splitting in order to swap electronic spins in coupled quantum dots lead inevitably to a finite double-Occupancy Probability for both dots. By solving the time-dependent Schr\"odinger equation for a coupled dot model, we demonstrate that this does not necessarily lead to quantum computation errors. Instead, the coupled dot ground state evolves quasiadiabatically for typical system parameters so that the double-Occupancy Probability at the completion of swapping is negligibly small. We introduce a measure of entanglement that explicitly takes into account the possibilty of double occupancies and provides a necessary and sufficient criterion for entangled states.
James T Anderson - One of the best experts on this subject based on the ideXlab platform.
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influence of the agricultural conservation easement program wetland practices on winter Occupancy of passerellidae sparrows and avian species richness
PLOS ONE, 2019Co-Authors: Katharine E Lewis, Christopher T Rota, Christopher M. Lituma, James T AndersonAbstract:Wetlands enrolled in the Agricultural Conservation Easement Program (ACEP) are established as a means of restoring wetland ecosystems and wildlife habitat on private, agricultural land. In West Virginia, USA, ACEP wetlands have never been evaluated to determine how they function as wildlife habitat in comparison to other available wetland habitat in the state. We measured the wintering Occupancy of Passerellidae species and apparent avian species richness on ACEP wetlands and a set of reference wetlands located on public land in West Virginia to evaluate if ACEP wetlands are being used similarly by avian species to other available wetland habitat in the state. Apparent avian species richness and the Occupancy Probability of four Passerellidae species-song sparrows (Melospiza melodia), dark-eyed juncos (Junco hyemalis), swamp sparrows (Melospiza georgiana), and white-throated sparrows (Zonotrichia albicollis)-did not differ between ACEP and reference sites. In addition to other vegetative and habitat associations for each species, dark-eyed junco Occupancy was negatively correlated with wetland size while swamp sparrow Occupancy and apparent avian species richness were positively associated with wetland size. These results indicate that ACEP wetlands are providing winter avian habitat as well as another source of wetland habitat in the state. Maintaining and expanding ACEP wetlands in West Virginia would continue to provide wetland systems in areas that are otherwise lacking these habitats.
