The phrase "a sharp indication that" is correct and usable in written English.
It can be used to express a clear or strong signal or sign of something, often in a context where evidence or proof is being discussed.
Example: "The sudden drop in sales is a sharp indication that the market is shifting."
Alternatives: "a clear sign that" or "a strong signal that".
While critics of Netanyahu's period in office note that his expansion of Jewish settlement construction in disputed land has always reflected a disinclination to deal honestly with the prospect of a Palestinian state, Monday's remarks are the sharpest indication that he has abandoned the pledge he delivered in 2009.
If we can beat the Saudi arms deal in the House, it will be a sharp, fresh indication that the House doesn't care about geopolitical US leadership blah blah very much.
It has been shown that multiple QTL models, similar to the presented BSSVS model, give a sharper indication of the QTL position [ 11], and a simulation study showed that it is possible to distinguish the effects of two QTL that are only 15 cM apart [ 27].
Yet, the reason for the narrowing of the deficit was primarily a sharp decrease in imports, an indication that consumers had cut their spending drastically.
And if she warns you away with a loud squawk or gives you a sharp peck, this is a good indication that she's broody.
Bruce Bittles, the chief investment strategist for the US wealth management group Baird, who has more than 40 years experience in the industry, agrees, and points out that the recent sharp falls in markets are a good indication that we are nearing the bottom.
Each of these indicators thus has a relatively narrow transition range, and each is capable of giving a sensitive, sharp indication of the completion of a reaction, that is, the end point.
REE patterns for these samples exhibit sharp, seawater-like negative Ce anomalies, providing a clear indication that an authigenic phase is present in the residual component (Fig. 5c).
These graphs show that the sharp N20m and P30m are not present in the difference-waveform plot, a strong indication that these components were unaltered by attention.
The profile of the moisture sorption−desorption isotherm (sharp steps, strong hysteresis between sorption and desorption) is a very clear indication that HH is a "stoichiometric" hydrate.
