The fossil record dates back to the early Paleozoic Era, with the earliest unequivocal records dating back to the Ordovician and Silur [ 28, 29].
The control methods show that using even one misdated taxon in a large dataset can significantly skew estimates of evolutionary parameters and suggest that it is better practice to use smaller datasets composed of taxa with unequivocal isolation dates.
But the fact that it took Mr. Karzai almost a full day to respond to the Taliban's announcement — the most unequivocal signal to date that the insurgents are ready to talk — left lingering doubts about his willingness to play a secondary role in a reconciliation effort that is being propelled, at least for now, by the United States and its allies.
In the wake of Justice John Paul Stevens' most unequivocal pronouncement to date on the subject of his forthcoming retirement, the sharks have begun to circle.
Unlike for T cells, however, there is no unequivocal evidence to date that 'soluble RANKL' in myeloma is either naturally secreted or cleaved from the cell surface by a proteinase.
The evidence to date is unequivocal that significant proportions of young people the world over are exceeding the < 2 hours per day recommendation [ 4].
To date, there is no unequivocal evidence for separate visual computations of object features for performance of goal-directed actions versus perceptual tasks in the neurologically intact human brain.
13 None of the combination studies performed with IFNβ to date have pointed out unequivocal evidence of benefit, including combinations with statins and azathioprine.
Time of diagnosis was defined as the date of first detection of unequivocal inflammatory abnormalities of the intestine, as assessed from radiologic, endoscopic, or operative observations [ 9].
To date, there are no definitive molecular or genetic markers that allow unequivocal diagnosis of ASD, with the exceptions of tuberous sclerosis, Rett's Syndrome, and Fragile X Syndrome [ 2- 12].
