The phrase "a portion of many" is correct and usable in written English.
It can be used to describe a small part or segment that is part of a larger group or collection.
Example: "The research findings represent a portion of many studies conducted on this topic."
Alternatives: "a part of many" or "a segment of many".
Publishers generally assume they will write off a portion of many authors' advances because they are not earned back in sales.
(IBM's Makovich insists Rexroad's arithmetic is wrong because he used IBM's fully diluted shares in his calculations, adding that "share repurchase is not the only element to consider when comparing diluted share count year to year. A portion of many share repurchase programs, including IBM's, offsets stock options issued and therefore has no impact on diluted EPS").
Home-based business owners can deduct a portion of many home-related expenses, like heat, electricity, maintenance, cleaning materials, home insurance, etc.
Given this large number of potential miR targets in the human genome, identifying allele-specific miR-mRNA interactions may help elucidate functional roles for a portion of the many SNPs identified in genome wide association studies (GWAS) that lack obvious functionality.
It is instructive to note that this article only considers income tax, actually only a portion of the many taxes that we all pay.
As it turned out, all but one of our interviewees had breastfed their infants, and as a result, a substantial portion of many interviews was devoted to discussing women's experiences with and rationales for breastfeeding their babies.
Eric Graves, the vice president of group sales for Crystal Cruises of Los Angeles, on whose ships many of these cruises take place, said the investment seminars attracted from 300 to 800 people a cruise, filling a significant portion of many ships, and represented "the fastest-growing segment of our group business".
In many, perhaps most, libraries, self-service machines cannot be used for borrowing videotapes or CD's, which make up a large portion of many public library collections.
It does not bring to mind the many obligatory trips – weddings, family events and reunions – that sometimes make up a significant portion of many travellers' holiday budgets.
As you can imagine, this is only a small portion of many of Baba Vanga's predictions.
Repeats of high sequence complexity – mostly transposable elements (TEs) – account for a large portion of many eukaryotic genomes.
