In Survival analysis, the Area compatibility factor, F, is used in Indirect Standardisation of population mortality rates. Survival analysis is a branch of statistics which deals with death in biological organisms and failure in mechanical systems. ...
where:
is the standardised central exposed to risk from age x to x+t for the standard population,
is the central exposed to risk from age x to x+t for the population under study and
smx,t is the mortality rate in the standard population for ages x to x+t.
F is then multiplied by the Crude Mortality Rate to arrive at the Indirectly Standardised mortality rate. Jump to: navigation, search Mortality rate (the word mortality comes from mortal, which originates from Latin mors, death) is the annual number of deaths (from a disease or at general) per 1000 people. ...
Conventionally, the area A under the curve y = f(x) between the two values x = a and x = b is symbolized by A = baf(x)dx, called the definite integral of f(x) from a to b.
The area is approximated by summing the products of f(x) and dx for each of the infinitely small distances (dx) that comprise the measurable distance between a and b.
The degree to which an explosive fills the cross section of a borehole or is in intimate contact with a target surface; in conventional drilling/load shoot operations, bulk-loaded explosives are completely coupled; untamped cartridges are decoupled; in the case of linear shaped cutting charges, these are uncoupled.
Perpetuity is the drive or impulse to survive, and compatibility is the constraint that results from the dependence of a species upon a system and interdependence of associated and interacting species.
Further, the formula requires that each consideration in determining the i-factor be strictly between the two species involved so that such i-factors relate to that specific interaction and cannot be compared directly.
Compatible (cooperative) behaviour results through natural selection at the level of the individual, because compatible behaviour in its many forms is the fittest possible survival mechanism.
is the standardised central exposed to risk from age x to x+t for the standard population,
is the central exposed to risk from age x to x+t for the population under study and
Feeds |
Contact