Limitations in Risk Assessment Essay Example | Topics and Well Written Essays - 750 words

Limitations in Risk Assessment - Essay Example basis of limited information on chemical contamination and assumptions about the population. Exposure assessments should not be based on a hypothetical maximally exposed individual (MEI). Screening risk assessments should rely on more representative estimates. Risk-management decisions should be based on refined exposure assessments that evaluate the distribution of a population's varied exposures and should address explicitly for any segments of the population that have unusually high exposures. Whenever possible, measurements should be obtained to support or validate any generic values used in exposure assessments, to check modeling results, or to provide more- realistic estimates of exposure than can be obtained with models. Such measurements might include collecting data at locations where exposures are anticipated, monitoring the exposures experienced by individuals, collecting data on the physical and chemical conditions that affect the movement and availability of chemicals, and providing information that relates exposure to effects, possibly using biologic markers. Measurements of exposure can be very different from estimated exposures based on source characteristics "(Risk Assessment and Risk Management in Regulatory Decision- Making, 28) There are two broad types of mathematical models used in exposure assessment: those that predict exposure to the agent, and those that predict the concentration of the agent. Exposure models can be used to estimate the exposures of populations based on small numbers of representative measurements. Models that predict concentration can be combined with information on human time-activity patterns to estimate exposures. Modeling may be done on long-term and short-term exposures, both of...) http://harvardbusinessonline.hbsp.harvard.edu/hbsp/hbr/articles/article.jspml_action=get-article&articleID=96203&ml_page=1&ml_subscriber=true Bernard Goldstein, Director, Environmental and Occupational Health Sciences Institute and Chairman, Department of Environmental and Community Medicine, UMDNJ-Robert Wood Johnson Medical School, Piscataway, NJ

History of the Seventh Day Adventist Church Essay

History of the Seventh Day Adventist Church - Essay Example They stayed awake late into the night, waiting for the Christ and were totally disappointed when the time between sunset and midnight passed and nothing happened. Miller, later in life, realized that miracle is part of spirituality but miracle is not spirituality! This event, since then, is known as the Great Disappointment. Miller served in the American Army in various capacities and later discharged after the war, on June 18, 1815. He, perhaps, had no inkling that more stirring times in the spiritual field awaited him. Miller’s main concern related to question of death and an after-life. Some bitter incidents molded his thinking over this issue. Firstly, his experiences as a soldier; secondly the deaths of his father and sister! What happens to an individual after death?—this bothered him intensely. He concluded two possibilities—annihilation and accountability. â€Å"The inquiring, questioning, restless mind which had begun to reveal itself in early youth was as active as ever. By his own testimony he entered he Army with the hope of find in patriotism one bright spot in a seamy, sinister world. â€Å"But,† he said he, â€Å"two years in service was enough to convince me that I was in error in this thing also. When I left the service I had become completely disgusted wit h man’s public character.†(Nichol, p.9) Miller wobbled between two faiths. Initially, he wished to combine both the faiths, Baptist and Deism. Soon, his involvement in the Baptist church became more intense, and he read sermons during one of the local minister’s frequent absences. During one such religious exercise, on the subject of duties of parents, he happened to relate the topic to the character of a Savior. His emotions led him to the internal search of such a compassionate Being, who has the capacity to save humanity from suffering and penalty of sin. That Being is worth adoration and deserves complete surrender, Miller concluded. But Deism had the upper hand again.