The phrase "a one ratio" is not correct in standard written English.
It is typically used in contexts involving comparisons or proportions, but the correct expression would be "a one-to-one ratio."
Example: "In this experiment, we maintained a one-to-one ratio of water to vinegar for optimal results."
Alternatives: "a one-to-one ratio" or "a one-to-one comparison."
Firstly, site-specific models were used, with discrete model M3 and one ratio null model M0, selection model M2a and neutral null model M1a, beta & ω model M8 and beta null model M7 were compared, then branch-specific models were used with a free ratios model and a one ratio model, two ratios models (a f) and one ratio model compared respectively.
The estimates of ω (the ratio of the non-synonymous substitution rate to the synonymous substitution rate) based on a one-ratio model was 0.040 for all mammals (see supplementary Table S3), suggesting strong gene conservation across the tree.
Under a one-ratio model, which assumes the same dN/dS for the entire tree, the cumulative dN/dS for the coding regions of PCSK9 was 0.186 (the log likelihood value l0 = −5109.09).
Second, we estimated ω under a one-ratio model in which the same ratio occurs across the tree, and third, we used the two-ratio 'branch model' to compare the estimated ω ratio on specific foreground branches (ω1) in the phylogeny to the background ratio (ω0) (Figure 1 and Table S3, Supplementary Material online).
All models listed above were tested against a one-ratio model (M0) using LRTs and 1 df.
First, we compared a one-ratio model and a free-ratio model to test whether the dN/dS ratios are different among lineages (Test F; Table 2).
A model (M3) that allows for three discrete classes (k = 3) of ω within the gene was contrasted with a LRT against a one-ratio model (M0) in which the ω ratio averaged over all gene sites.
We fitted two different PD-PS models to our data (see Methods) and contrasted each PD-PS model against a one-ratio model (M0) that assumed that PD branches as well as PS branches were subjected to the same selective pressure.
In the two-ratio model analyses (model B in Table 2), the ω value of the focal branch was 0.40432 and model B fitted the data significantly better than a one-ratio model, which assumed a single ω for all branches (P = 0.024, Table 2).
Morgan Stanley had a Tier One ratio of 12.7percentt.
"We can't live on a sliver of a core tier one ratio," said Booker of the need to raise more capital.
