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Hormesis Revisited: New Insights Concerning the Biological Effects of Low-Dose Exposures to Toxins

One of the most fundamental tenets of toxicology is that "the dose determines the poison." This simple phrase provides the basis for the belief that all agents—chemicals and physical phenomena that are capable of producing some effect—have the potential to cause toxicity. Whether toxicity actually occurs is principally a matter of dose: the greater the exposure to a given agent, the more pronounced or severe the response of a cell or organism.

Russell County Sportsmen v. United States Forest Service

The Ninth Circuit reversed a lower court decision invalidating the U.S. Forest Service's 2007 travel management plan for parts of the Lewis and Clark National Forest. Nothing in the Montana Wilderness Study Act of 1977, which requires the Service to manage a wilderness study area so as to "maintain"...