We extracted from the nationwide commuting dataset the commuting flows for which both the residence tract and the work tract belong to our surveillance region.
In [ 4], other non-commuting types of mobility were also taken into account and therefore the exposure tract could be different from both the residential and the work tract.
The key observation employed in the incorporation of commuting in simulation is that if a release occurs during working hours, a worker would be exposed at the dosage level corresponding to his/her work tract rather than the dosage level of his/her home tract.
After generating the number of cases for each tract, BARD-C computhe thED-visititimeme of each simulated case by, again, taking into account the fact that a worker would be exposed at the dosage level of his/her work tract.
This idea is implemented in BARD-C by ensuring that in the Step 4(a) of Algorithm 1 the time of ED visit for a worker case is computed as a random deviate from the lognormal distribution that corresponds to the dosage level at his/her work tract.
A vision of the place my grandmother always called the old country was lodged in Mother's mind throughout her life: hillside villages of stone huts surrounding a solitary church, horse-drawn carts plying dirt roads, babushka-clad women and hardened, stocky men working tracts of land.
These data were collected during the 2000 Census, have national coverage and are provided at the census tract level: each commuting flow denotes the average daily number of commuters between a home census tract and a work census tract.
Finally, c ij, i ≠ j, denotes the number of cases who live in tract i and work in tract j, c ii denotes number of cases who either don't work, or who both live and work in tract i and θ j denotes the probability that a person who is exposed in tract j will visit an ED, given that a release has occurred.
In his first substantial political work, Two Tracts on Government (composed in 1660 but not published until 1967), Locke defended a very conservative position: in the interest of political stability, a government is justified in legislating on any matter of religion that is not directly relevant to the essential beliefs of Christianity.
He was a prolific author of scholarly works, political tracts and essays which bridged both modes of discourse.
