But a final answer remained elusive, a certain test of the fatalism that Mr. Bush had expressed at the beginning of what was clearly his longest day.
The United States and Western Europe offered infusions of money, expertise and, just as important, a new status: the prospect, if the novice democracies met certain tests, of membership in the great clubs of civilized nations, NATO and the European Union.
Indeed, even outside the video game world, people who trained with NeuroRacer saw improvements on certain tests of memory and attention, the group reports online today in Nature.
The Primary Atomic Reference Clock in Space (PARCS) mission is designed to perform certain tests of relativity theory, to study the performance of individual GPS space-vehicle clocks, to study the dynamics of atom motion in microgravity, to advance the state-of-the art for space clocks, and to serve as a pathfinder for precision instruments based on laser cooling of atoms.
Of course, a properly skeptical person does not accept just any "evidence" that matches his/her preconceptions and ignores the rest; evidence must pass certain tests of verity and must be verifiable independently and abundantly.
Improvement in the entire cohort of subjects after shunting was most significant on certain tests of executive function, attention, and speeded psychomotor action (category fluency, digit symbol, and trails A time), and not memory.
Finally, Herman Capellen and Ernie Lepore (2003) argue that, according to certain tests for the genuine context-sensitivity of a term, 'know(s)' just does not pass muster.
The limitations of our practice are that we could not procure an enough number of participants to measure the learning effects and could not conduct a certain test for the evaluation of the effects.
It was difficult to conduct a certain test for the evaluation of the learning effect with TEDViT because the participants in the practice were not students, but engineers already employed.
Meanwhile, the National Cancer Institute is conducting a study with nearly 155,000 people to determine if certain tests reduce the number of deaths from some cancers, including colorectal cancer.
