The phrase "absence of factor" is correct and usable in written English.
It can be used in contexts where you are discussing the lack of a specific element or component that is relevant to a situation or analysis.
Example: "The absence of factor X in the experiment led to inconclusive results."
Alternatives: "lack of factor" or "nonexistence of factor".
In the absence of factor H, C3b binds factor B, allowing its cleavage by the serine protease factor D to yield the fragments Ba and Bb.
The total average weight of a series of implants in Factor VIII KO SCID mice was 6.78±2.16gr versus 1.46±0.82gr in the normal SCID (Fig. 1C,), suggesting that the absence of Factor VIII enhanced spleen weight by a factor of 4 (p<0.05).
*Referent is absence of factor.
The presence or absence of factor(s) and IRES RNA is indicated beneath the graph.
Thus, only the presence or absence of factor 1 may be associated to fertility or sterility.
The estimation of space complexity is analogous except of absence of factor N, see sub-section "Space complexity" for details.
We pooled data across studies to further evaluate the validity of the ATI, to further assess the presence or absence of factors (subscales).
Therefore, CO2 variations during stable nights could be complementarily used for categorizing days as suitable or not suitable in GEC monitoring, assuming the absence of factors that could exclusively change PG such as charged clouds overhead and aerosols.
Even more strikingly, Hempel (1988a, 1988b) observed that the application of scientific theories presupposes the absence of factors that might affect the internal principles of the theory, which goes beyond the content of the theory itself.
The expression of SCP1 in the EBs cultured with BMP4 was detected earlier than that in EBs cultured in the absence of factors and with RA.
VASA expression in EBs cultured with RA was slightly higher than that in EBs cultured in the absence of factors, whereas, no significant increase of VASA expression was detected in EBs cultured with BMP4 or SCF in comparison to the EBs in the absence of factors.
