Department of Health-funded research has revealed significant differences in the number of eligible people receiving direct payments and also the hourly payment rates between councils. The study, ...

Large seasonal variation in the rate of change in girth of tropical rain-forest tree species has been described, but its origin is still under debate. We tested whether this variation might be related ...

Variation is the differences between individuals of the same species, caused by genetic and environmental factors. Surveys into variation give data that are continuous, which means to come in a range, ...