This phrase is correct and usable in written English.
You can use it when you want to introduce an assumption you are making that is based on logic or reason. For example, "It is valid to assume that the recent weather conditions will have an effect on crop production this year."
It is valid to assume that LIVE could be compared to an ARS.
Then, it is valid to assume that the rectilinear bore hole is horizontal and the infinitely long DS is prestressed by the axial force F z (s) remaining unchanged throughout its length.
It is valid to assume that (cos(theta_{1} )/cos(theta_{2} ) sim 1.0) because cos does not change significantly due to the very small value of θ in the microscopic test volume.
It is appropriate to study research impact using a project as the unit of enquiry only if it is valid to assume a single research study can or should prompt a change to health care or the health system.
The experiments reported here were designed to establish whether, in studies where bones in one limb are loaded artificially, it is valid to assume that the (re)modelling in the contra-lateral bones is uninfluenced by such loading, thus allowing them to be used as non-loaded controls.
From the body of evidence in the literature it is valid to assume that the stifled DNA repair observed with quinacrine is mediated by the inhibition of other enzymes, for instance repair-specific UV endonucleases, DNA helicases [ 154], or DNA polymerases [ 147], but not topoisomerases.
While it would be valid to assume a SOCC value of 0 for bare rock areas and deserts59, there are some zero-value areas, especially in the Canadian high Arctic, where a shallow organic cover may exist.
Unfortunately, a direct application of this method to the methylation tiling array data may be suboptimal since it may not be valid to assume that the majority of the genome is not methylated.
b) Toxicology assumes that it is valid to extrapolate linearly from high doses over a very wide dose range to predict responses at doses within the physiological range of receptor occupancy for an EEDC; however, because receptor-mediated responses saturate, this assumption is invalid.
On the other hand, it is equally valid to assume that both are underestimates.
This has major implications for interpretation of energy balance in murine metabolic studies, as if activity does not appear as an independent predictor of EE in WT control mice, it is not valid to assume that alterations in activity can drive differences in energy balance between animals with different genotypes.
