The phrase "a straightforward indicator of" is correct and usable in written English.
It can be used when you want to describe something that clearly signifies or points to a particular fact or situation.
Example: "The increase in sales is a straightforward indicator of the success of our new marketing strategy."
Alternatives: "a clear sign of" or "an obvious signal of".
The metal content (when present in the order of magnitude of ∼10 ppm) is not a straightforward indicator of the electrocatalytic performance for this reaction.
The problem of congestion prediction is translated into traffic amount (i.e. the number of vehicles on the individual roads) prediction, as the latter is a straightforward indicator of the former.
In this paper, the problem of congestion prediction is translated to the prediction of traffic amount (i.e. the number of vehicles) on a road link, as high traffic amount is a straightforward indicator of congestion.
Our results imply that density is a complex characteristic of wood rather than a straightforward indicator of plant ecological strategies.
A straightforward indicator of the function of isolated mitochondria is their absolute respiration rate, normalized to protein or cytochrome a, in state 3ADP or state 3u.
In this study we used 16S rRNA gene sequence similarity as a straightforward indicator of genomic relatedness/distance and found that the ability to identify TCS orthologues between genomes was dependent on relatedness (Fig. 3).
As a consequence, the results might not have fully reflected the true range of variability of /dz/ realization, as syllable and word lists can be a fairly straightforward indicator of the study aim, and speakers would consequently be more conscious of their pronunciation [cf. Fon et al. (2011)].
But there is one relatively straightforward indicator of fire risk that can be tracked and mapped.
"This is the most straightforward indicator of why we don't want the government doing this, except in an emergency," said Douglas J. Elliott, an economist at the Brookings Institution who supports the new lending program but worries about its long-term implications.
The epicenter of the problem of vulnerable out-of-school children -- viewed through the straightforward indicator of financing -- is outrageously neglected.
In conclusion, TEER is a straightforward quality indicator which could be routinely used to monitor the differentiation status of oviduct epithelial cells in vitro.
