The phrase "a proxy for active" is correct and usable in written English.
It can be used in contexts where you want to indicate that something serves as a substitute or representation for something that is active.
Example: "In this study, we used the number of participants as a proxy for active engagement in the program."
Alternatives: "a substitute for active" or "a stand-in for active".
NOS DNA methylation was also associated with wheeze and medication use, a proxy for active disease, in children with asthma.
Cell-associated HIV RNA has been used as a proxy for "active" reservoirs since RNA is short-lived and its presence implies recent transcription (Pasternak et al., 2013).
As a proxy for active disease, patients needed to have at least two UC-specific non-pharmacy claims, at least 30 days of 5-ASA treatment and at least one corticosteroid prescription within the 12-month post-index period.
With non-invasive methods applied to a simple epithelium in vivo, and using myosin fluorescence intensity as a proxy for active force generation, we have been able to quantify relative changes in individual effective mechanical properties.
We thus used myosin fluorescence intensity as a proxy for active force generation and treated cells as natural experiments of mechanical response under cyclic loading, revealing unambiguous mechanical properties from the hysteresis loop relating stress to strain.
The expression of constitutively active Ras via its endogenous promoter in cells of interest in vivo therefore provides a proxy for constitutively active growth factor receptor activation (Tuveson et al., 2004).
The scanner creates a 3D map of the brain split up into tens of thousands of tiny blocks called voxels (like pixels but for volume) and each has a value that describes blood flow – used as a proxy for brain activity as more active areas need more oxygen.
It's a good proxy for active managers like Oberweis that play in that sandbox, and we actually applaud the move.
Levels of HBsAg are a proxy for intrahepatic transcriptionally active covalently closed circular DNA, and a reduction in HBsAg levels may signify a decrease in intrahepatic covalently closed circular DNA and induction of immune control over HBV [ 12].
To do this, we use actiwatches – small accelerometers worn on the wrist that record how much people have moved, which is a proxy for when they're active and not active – and ask all our participants to complete sleep diaries.
First, the expression level serves only as a proxy for the amount of active transcription factor protein.
