The phrase "a number of background" is not correct in written English.
It should be "a number of backgrounds" if referring to multiple backgrounds.
Example: "In our research, we considered a number of backgrounds to ensure a comprehensive analysis."
Alternatives: "several backgrounds" or "various backgrounds."
These draw on a number of background value principles and tacit assumptions about the empirical world that need to be analyzed.
This result holds true when controlling for quite reliable measures of cognitive abilities, a number of background characteristics, family income and indicators of students' motivation.
Albumin was analyzed spectrophotometrically from the saliva specimens, and values were studied statistically between the groups and regarding a number of background variables.
There is, therefore, a significant risk that multiple stars will be located in a given optimal aperture and thus that a given star is contaminated by a number of background stars.
They must have at least five years of child care service experience, alongside passing a number of background checks, criminal background checks, as well as getting fingerprinted.
The reading literacy framework that IEA uses takes into consideration a number of background scenarios reflecting a variety of national, community, school, classroom, and home contexts.
First, this paper proposes the foreground-mask sampling to localize the candidates of abandoned luggage items by calculating the intersection of a number of background-subtracted frames which are sampled over a period of time.
Despite its initial appeal, objections to the standard theory have been made by theorists from a number of backgrounds.
It has a number of videos, background material, analysis and profiles of those involved.
The procedure is then repeated for a number of discrete background compositions defining composition paths.
In addition, a number of important background factors are held constant for this study population.
