But regional variations in health care have been controversial because it is not clear whether they reflect true differences in patient needs or in health care practices or regional differences in health care payment rules, Dr. Bach said.
This is particularly true for the yield models because they reflect the accumulated uncertainty from composition, pretreatment, and enzymatic hydrolysis measurements.
The possibility that they might reflect true wander of the poles was discarded, because it implies separate wanderings of many magnetic poles over the same period.
They therefore demand careful attention: because they reflect not merely reality, but the times and places in which they were created, and because they have consequences.
They are on the agenda because they reflect facts: objective environmental conditions that can be observed.
— Ed B., New York Brantley: All awards are arrived at by compromise, which means they seldom reflect true originality or excellence.
This is because the observed differences not only reflect sequencing errors, which are expected to occur at similar rates across species, but they also reflect true genomic differences between the individuals sequenced for the 2× and ENCODE projects, which will depend on the diversity of the sampled populations, the relatedness of the sampled individuals, and other factors.
In practice, however, the use of breeding values predicted from animal models can introduce serious biases in the analyses and conclusions reached regarding microevolution, because they do not always adequately reflect true breeding values.
