The phrase "a rather higher level of" is not correct in standard English usage.
It can be used when discussing a comparative degree of something, but the word "rather" is redundant when paired with "higher."
Example: "The project requires a higher level of expertise than we initially anticipated."
Alternatives: "a significantly higher level of" or "a considerably higher level of".
Unsurprisingly, protein samples of C169DHydA1 and C299DCpI both retain a rather high level of H2 release activity (30 80%, Fig. 1).
In some ancient civilizations surgery reached a rather high level of development, as in India, China, Egypt, and Hellenistic Greece.
The judge, Curtis L. Wagner Jr., who is expected to hear testimony in the case all week at the Federal Energy Regulatory Commission here, said that if the market consisted only of Southern California, then El Paso had a "rather high level" of concentration in that market.
My only regret was not bringing a real bicycle (they don't have calorie counters, and nature has already set a rather high level of difficulty for the area, but the scenery is better than a stepping machine) to explore the countryside around Three Choirs.
Its starting point is the decade of 1930, when the country displayed a rather high level of inequality above other advanced economies.
The third group of girls (20.8 %) started with a rather high level of headache as compared to all other classes without significant changes of headache days across time (s = 3.882, p = 0.386; q = − 1.557, p = 0.262; class 1: 'high pain class').
Yet in other cases, mtDNAs with identical control region sequences within a community, generally indicative of very recent common ancestry, showed a rather high level of heterogeneity at their coding regions, consistent with a considerably more remote shared ancestry.
This conclusion is supported by Southern blot analysis of the isolated mitochondria from senescent strains which show a rather high level of mtDNAs with no rearrangements in the investigated mtDNA region (Fig. 1B).
