The phrase "a rather small fraction" is correct and usable in written English.
It can be used when describing a quantity that is limited or minimal in comparison to a whole or larger group.
Example: "In the survey, only a rather small fraction of participants reported experiencing the issue."
Alternatives: "a relatively minor portion" or "a somewhat limited percentage."
He said that was the predictable result "of a policy geared toward a rather small fraction of the population".
Unfortunately, that describes a rather small fraction of the science-trainee population.
This finite value of H C may be attributed to a rather small fraction of FCT FePt resulting from structural nonuniformity.
In weighing up the options, the good to be achieved by some tough course of action must be multiplied by the probability of achieving it, which is always a fraction of one, and often a rather small fraction at that.
These form a useful resource for benchmarking, but since a rather small fraction of functional sites are likely to be annotated in this database, the benchmark here uses synthetic sequence that contains embedded REDfly footprints as well as synthetic samples from PWMs, as described in Materials and Methods.
The default threshold is very conservative and only a rather small fraction of reads will be eliminated.
Its rather small fraction, impeded by the rather small amount of vaporized Ti, does not allow modifying however the coating hardness.
For a single isolated reserve (horizontal axes in Figures 8), persistence requires larger reserves for most mixtures of adult and larval movement than for adult movement alone, except for rather small fractions in adult movement (<20% of the total movement scale).
Since these two domains should constitute rather small fractions of all-day long communication and language use within the larger family, the observed differences do not seem to have a sufficient impact on language behavior in order to explain interference differences in the picture naming task.
It shall be noted that all regression models have quite low values for the determination coefficient (R) and that the largest part is contributed by the area and sex variables meaning that rather small fractions of the variation in birth weight and growth are explained by the associations with Gap, area and child sex differences and the social and economic variables.
