And there is a class of survey that represents an even higher level of difficulty – cohort studies.
After Cash's death, Rubin was searching for a challenge with an even higher degree of difficulty, a greater test for his powers of listening.
The setting of this film does not have the backdrop of his other movies -- boxing, ballroom dancing, con men and/or politics -- though that, in a way, gives it an even higher degree of difficulty.
In other words, she's a really good politician, even playing on a higher difficulty setting than men have to.
As the stellar core continues to shrink and the central temperature and density are forced even higher, a fundamental difficulty is soon reached.
Higher scores denote a higher difficulty level.
In some of these counties, 40 to 50 percent of the sample — and even higher, in some cases — reported difficulty sleeping on at least half of the days in the previous month.
This difficulty is even higher when using OA cartilage samples, since OA cartilage has a smaller number of cells than the healthy one.
A positive value indicates higher ability and higher difficulty; in contrary, a negative value indicates lower ability and lower difficulty.
