Specifically, fundamental biological and biochemical processes such as homeostasis, nonlinear signal processing, and the law of mass action— influence and govern exposure-dependent responses to both endogenous and exogenous substances, and to both "toxic" and "therapeutic" agents, and need to be carefully considered and appropriately weighted against potentially policy-based supposition.
Fesenko, S. et al. Important factors governing exposure of the population and countermeasure application in rural settlements of the Russian Federation in the long term after the Chernobyl accident.
The orientation of mountain slopes has a major impact on solar radiation receipt and temperature and also governs exposure to wind.
In many provinces there are no existing regulations governing exposure of pregnant women to organic solvents, a state of affairs that she finds very troubling given that her research shows solvent-exposed children have poorer visual acuity and problems with colour vision compared with control groups.
Currently, no occupational exposure limits govern workplace exposure to engineered nanomaterials (Methner 2008).
Health theories and psychological models of persuasion and attitude change specify a variety of mechanisms that govern whether exposure to a message eventuates in changes in thinking and behavior.
But that research didn't necessarily translate into changes in regulatory policies that govern human exposure, argues Lorenz Rhomberg, a principal with Gradient Corporation, a risk assessment consulting firm in Cambridge, Massachusetts.
However, these studies generally focus on variation in state laws governing malpractice exposure.
Written institutional policies governing radiation exposure and work responsibilities for pregnant radiology residents are not uniform and often are nonexistent.
While there are myriad regulations to protect people who work in noisy environments, there are relatively few governing repeated exposure to noise outside the workplace: portable music devices, rock concerts, hair dryers, sirens, lawn mowers, leaf blowers, vacuum cleaners, car alarms and countless other sources.
In 2012, the Obama administration said it anticipated proposing a rule governing beryllium exposure by the following Summer, but it failed to do so until late 2015.
