Metagenomics is now providing extraordinary datasets that deeply sample natural variation, raising the question, how should this variation be represented?
There is considerable geographic variation in both temperatures and the risk of stroke death, raising the possibility that variations in temperature may either synergize or ameliorate the underlying pattern of geographic disparities in stroke risk.
The Times contribution has been in raising the issue of variations in teacher effectiveness politically, and, as I said last August, the original Song-Felch story was one of those rare "this changes everything" moments in journalism.
Consumption of meat and seafood was significantly higher in the city of Yantai where gout prevalence was the highest, compared with the city of Dongying that had the lowest prevalence of gout - raising the possibility that variations in the prevalence of gout might be directly attributable to lifestyle factors [ 56].
We demonstrate that the low gradient coefficient raises the significant variation of the phase velocity within a certain range of ratios of upper layer thickness to equivalent thickness.
Several researchers have found significant family effects in common garden experiments, raising the possibility of genetic variation in the degree of melanization [ 14, 22].
34, 35, 37 These studies assessed nutrient levels in specific areas of Spain, raising the prospect that regional variation in dietary patterns probably affects calcium intake.
For both ADH and ALDH, the Vmax values showed more than a 10-fold variation, raising the possibility that the uncertainty factor of 10 commonly used to assess human variability may be an underestimation.
We did not observe a consistent dose-response effect with Alu methylation, raising the possibility of chance variations.
On the other hand, Shelley's Dr Frankenstein did indeed exhibit signs of unhealthy obsession and paranoia, raising the intriguing possibility that a variation of the stereotype existed even at the turn of the 19th Century.
