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The phrase "a significant fraction is" is correct and usable in written English.
It can be used when discussing proportions or percentages in a context where you want to emphasize that a notable part of a whole is being referenced.
Example: "In the recent survey, a significant fraction is in favor of implementing the new policy."
Alternatives: "a considerable portion is" or "a notable percentage is".
Exact(7)
In this study, this carbon material was characterized and a significant fraction is graphene with a low oxygen content.
A significant complication, however, is that although the vast majority of chemistry uses English nomenclature, a significant fraction is in other languages.
Whenever firms generate profits, a significant fraction is transferred to the public purse through corporate income taxation.10 For example, in 2016 central government statutory corporate tax rates in the OECD ranged between 8.5% in Switzerland and 35% in the US (OECD 2016a).
However, their number is huge and a significant fraction is extremely difficult to study using classical structural methods such as NMR and X-ray crystallography.
A significant fraction is also related to metabolic pools with longer turnover times, for example starch degradation and re-fixation of mitochondrial CO2.
However, of the large number of predicted targets for each microRNA a significant fraction is false, indicating there are also other parameters, yet to be discovered, that determine microRNA-target association.
Similar(53)
"A significant fraction were terminated," says NSF Director Arden Bement.
In contrast, HNA initially was more readily desorbed from sediment and humic fractions, but a significant fraction was not recovered in repeated desorption runs.
Biotinylated KV10.1 was preferentially found in the nuclear fractions, and a significant fraction was resistant to Triton X-100 extraction, indicating INM localization (Fig. 9).
Suzuki and coworkers recently exploited this step of ERAD to show that a significant fraction was modified by the Golgi mannosyltransferase Och1p [20].
Of these ura3Δ isolates, a significant fraction were found to incorporate the mutation (Fig. 2, second column).
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com