There were minor variations in how the fee is being applied.
Is it the technology, from SportVision, or the variations in how umpires call balls and strikes?
They found that about 30 variations in how genes were expressed had a significant effect on how fit people became.
The Transportation Security Administration has been hampered in identifying some individuals because of variations in how their names were transliterated from Arabic.
Given the large overlap in the music that the online services carry, slight variations in how they operate may dictate which service wins the most listeners.
As engineers familiar with 40 years of nitinol research might have predicted, Mr. McGregor encountered frustrating variations in how forcefully and quickly the material responded under different conditions.
They have detected slight variations in the glow, in effect, variations in how much sunlight Earth reflects hour by hour, season to season and year to year.
Between and even within families, there are wide variations in how comfortable people are with their own and other people's bodies.
Although the office of prime minister exists in most countries, there are variations in how the office operates and is organized.
With 32 N.F.L. teams, however, each with different budgets and equipment staffs, there appear to be variations in how helmet distributions are handled.
"There are certainly variations in how we empathize," Lamm says.
