The phrase "a weak fraction of" is correct and usable in written English.
It can be used to describe a small or insignificant part of a whole, often in contexts discussing proportions or quantities.
Example: "The study revealed that a weak fraction of the participants were aware of the new policy changes."
Alternatives: "a small portion of" or "a minor part of".
In the weak fraction of mitotic cells that die, the cell death does not rely on canonical pathways (i.e., caspase- and Bax/Bak-dependent).
The shield's barrier is overcome when a relatively weak (a fraction of 1 T) external magnetic field is applied and the enzyme and the substrate are merged and forced to interact in the generated nanocompartment.
This vital point about the United States, past and present, also brings home in an especially poignant way the fact that there are still many developing countries that confront, today, the issue of giving their poorest and weakest even a fraction of an acre of the earth's surface to call their own.
For the loosely attached soil fraction, a weak effect of plant cultivar identity was detected, but no significant correlation with the plant phylogeny for either BCD or phylogenetic dissimilarity (MNTD or Unifrac) was found.
Finally, high isotacticity is also required for obtaining qualitative β-form spherulites, demonstrated by increased β-crystal content after removal of weak crystalline fraction of the sample.
It should be noted that here a weak influence of a minor fraction of aggregated molecules (seen at low q values) is neglected, which is not the case for the Zimm diagram shown in Fig. 2.
Still, if all of these penalties reinforce one crucial idea — that reducing the number of human-started fires is an absolute imperative — they nonetheless remain generally far too weak, representing only a fraction of the damage such fires wreak every year.
In this study, a novel soluble polyimide (PI) (6FDA-TFDB) sample with high molecular weight is synthesized; it contains a large fraction of relatively weak interacting groups.
Within each genome compartment, weak selection affects a larger fraction of indels than of SNPs, and, among indels, a larger fraction of deletions than of insertions.
As these events have weak alignment signatures (a small fraction of reads from that locus predicts the insertion), they can be more difficult to identify and to distinguish from background noise.
