The phrase "an impressive data" is not correct in standard written English.
The word "data" is typically treated as a plural noun in formal contexts, so it should be "an impressive piece of data" or "impressive data" without the article.
Example: "The research presented an impressive piece of data that supported the hypothesis."
Alternatives: "an impressive set of data" or "remarkable data."
An impressive, data-rich piece on the likely impact of rising sea levels.
"This is a very thought-provoking find based on a really impressive data set," said Josh Van Buskirk, a zoologist at the University of Zurich who was the lead author of the only other paper investigating changes in bird size in North America.
Estate agents might also find this an effective way of showing impressive data to potential commercial tenants.
To conclude, PIM-Trip-TB provides highly impressive data for a number of commercially relevant gas pairs including O2/N2, H2/N2 and CO2/CH4 in terms of permeability, selectivity and position relative to the Robeson upper bound.
Although an impressive 1672 data points were recorded, these should have been analyzed per patient and summary data subsequently analyzed for all 22 patients combined or with all data presented for each individual participant.
There aren't any explicit parameters for winning the Heisman Trophy other than doling out quantifiably impressive data and playing a position that the voters consider having merit (QB, RB, CB, WR).
But at least the researchers put that massive pile of verbiage to good use: With an average size of 11 words, the 1 billion tweets posted in 2008 and 2009 add up to an impressive cultural data set.
"I waited with anticipation for this … impressive data set," comments Agnar Helgason, a biological anthropologist with deCODE Genetics in Reykjavik, Iceland.
Now, a cynic would argue that all this rather impressive data leads only to one rather gruesome conclusion: we're due for a big, deadly crash any time now.
