The online market for drugs is already substantial, with probably more than a million Americans regularly participating.
But over the same period, nearly all of Britain's more familiar garden birds showed substantial increases, probably reflecting the popularity of garden feeding and warmer winters.
Although official census figures suggest that China's overall population remained remarkably stable in Ming times at a total of about 60 million, modern scholars have estimated that there was in fact substantial growth, probably to a total well in excess of 100 million and perhaps almost as high as 150 million in the early 17th century.
Whiplash injuries, which from an emergency point of view are regarded as minor injuries (AIS 1) have been frequently present, but show a substantial decrease, probably associated with the penetration of better neck restraints in the vehicle fleet and frequent building of roundabouts in recent decades.
Although differences in the composition of the starting materials between the previous studies and our experiments would have caused the difference in carbonate species, it seems likely that carbonate minerals formed during serpentinization under CO2-rich conditions contain substantial FeO, probably at temperatures below approximately 300 350 °C.
"I suspect that the challenges that South Gate faces, which I think are substantial, are probably something that he relished taking on," said Mayor Dave Golonski.
The developing lower canine crown, C1, is substantial, but probably no more than half its eventual size.
Considered together, these data indicate that use of IV vitamin C was both substantial and probably underestimated.
The global improvements in nutrition may be encouraging, but substantial inequalities probably underlie the summary figures.
