The phrase "a substantially smaller number" is correct and usable in written English.
It can be used when comparing quantities to indicate that one number is significantly less than another.
Example: "The survey revealed a substantially smaller number of participants this year compared to last year."
Alternatives: "a significantly lower number" or "a considerably reduced number".
Within seven out of these eight loci, we found that, on average, a substantially smaller number of variants was correlated (r2 > 0.5) with the most significant SNP in AA than in EA populations (16 versus 55).
We have decided not to use the second question as our main dependent variable since it is asked to a substantially smaller number of respondents.
We also plan to investigate the possibility of using a substantially smaller number of strongest FFT bins, as well optimized search strategy considering all the possible PRN codes.
The phenomenon is the result of a multi-year process during which agricultural lands and farms were concentrated in a substantially smaller number of farms (Fig. 4a).
In our analyses, this meant that the lower bound comprised information of a substantially smaller number of studies than the higher bound, thus presenting a rather unstable measure.
This analysis was based on a substantially smaller number of cancers (3,188) than Table 3.
Indeed, we found that application of LASST resulted in a smaller p-value threshold and substantially smaller number of DEGs for both IL1 and PGC-1beta experiments.
For the coupled FSI problem, these fictitious terms have a significant effect, leading to better convergence rate and hence substantially smaller number of sub-iterations.
Moreover, the substantially smaller number of junction fragments in degenerative embryos was likely a result of a higher fraction of fragments overlapped with introns (Table 1).
The substantially smaller number of questions in LSIA 3 relative to LSIA 1 and 2 makes it difficult to carry out the analysis over the three cohorts.
Both the proliferative activity and clonogenicity were inhibited, as reflected by the substantially smaller number and size of the blast colonies (Fig. 6F1 F3).
