Because of the differing population and Twitter penetration rates (share of people using Twitter) in each county, we normalize the number of tweets by the total number of tweets counted.
In the case of social security, differing states have differing population sizes and differing numbers of retirees, complicating the allocation of spending between states.
There are several nodule management protocols proposed by different LCS trials[ 5 8, ], but currently it is difficult to determinate the most accurate protocol for LCS because of differing patient populations and study designs.
15 A matched non-Māori sample was not recruited from the small non-Māori population because of differing demographics between the two ethnic groups, especially the younger population profile of Māori.
They concluded that an accident there with the same emissions as in Fukushima would cause 25% more deaths, despite the region's much lower population density, because of differing meteorological conditions.
Finally, generalizing surname lists to populations outside of the areas in which they were derived is problematic, because of differing immigration patterns to different parts of the world.
Although several medical treatments have been reported for the condition, the evidence is quite difficult to interpret because of differing study methods, non-homogeneous patient populations, variability in outcome measures, and failure to control for spontaneous regrowth.
This same information is essential to risk assessments and meta-analyses because they pool results across epidemiological studies that consider populations of differing age ranges, sex, or races.
Milgram himself replicated the experiment numerous times, in many different populations, with groups of differing backgrounds.
Unfortunately, because this species is becoming so rare, it is extremely difficult to test this possibility directly by comparing insular and continental Egyptian vulture populations of differing densities.
