The phrase "serves as a factor" is correct and usable in written English.
You can use it when you want to express that something serves as an element or condition in a given situation. For example: The high cost of living serves as a factor in determining the quality of life in a certain city.
The figure, which gauges production and consumption in the U.S., is heavily watched by the Fed and serves as a factor its decision-making.
"There is a membership fee to my program that serves as a factor in determining just how serious they are about developing a true committed relationship".
Together, these observations suggest that Slit2 serves as a factor utilized by muscle Ctnnb1 to direct presynaptic differentiation.
A and B each bind exclusively to X, and thus X serves as a factor which couples the dynamics of A and B. We formulate the model in a general form, so that the essential insights can be extracted in a transparent and generalisable way.
The slab thickness parameter served as a factor to convert the TEC to foF2.
Grain size is an important trait in breeding, serving as a factor determining rice yield.
PCNA appeared to serve as a factor maintaining the cell replication typical of rapidly growing early embryos.
These differences probably serve as a factor provoking controversy because the GSCs used in experimental studies are neither controlled by the same standard nor from the same source.
In addition to gene mutations [ 9], RNA recombination, at least in some cases, can also serve as a factor helping a virus escape from accumulated deleterious effects in a viral population [ 10].
In this manner, adipose tissue inflammation that induces IKKβ-dependent IL-13 expression from adipocytes would serve as a factor to maintain a chronic low-grade inflammation and thereby limit the magnitude of obesity.
Furthermore, the compound has been shown to inhibit the activation of NFkB transcription factor which serves as a survival factor in some cell types [ 20, 21].
