The phrase "a more stringent model" is correct and usable in written English.
It can be used when discussing a model that is stricter or more rigorous in its criteria or requirements compared to another model.
Example: "In our research, we decided to implement a more stringent model to ensure higher accuracy in our results."
Alternatives: "a stricter model" or "a tougher model".
Other companies, like Expedia, use a more stringent model that only allows an individual who has purchased something from their site to leave a review.
HBV transgenic mice have been used as a more stringent model and HBV replication in these animals resembles the clinical condition of chronic HBV infection.
Two alternative models were used for QTL detection: (1) a model (A) without a random polygenic effect, which detected significant QTL in all nine regions and (2) a more stringent model (B) that included a random polygenic effect, which reduced the number of significant QTL to five regions.
In the situation when iTriplet has found too many motifs for the specified model then we can conclude that the model is too lax and so a more stringent model should be used, by increasing l or reducing d or both at the same time.
Using our more stringent model of polarizing the tissue, topical application of formulated tenofovir gel was protective against HIV-1.
In contrast to other studies, the SCM examined here follows a stratified stepped-care approach taking into account patients' needs and preferences which may be clinically more adequate than the more stringent model of stepped care which begins with the least intensive treatment for each patient regardless of symptom severity.
The multi-group analysis by age showed that the same number of factors and factor-loading pattern were equivalent across both age groups, supporting the configural invariance of the bifactor model (SBχ = 256.10; df = 126; CFI = .97; NNFI = .96; RMSEA = .04; 95% C.I. [.03 .05]) and its fit statistics were used as a baseline onto which more stringent models were compared.
However, we were unable to reject a more stringent null model (ω2 = 1; Table 2, line 8).
In a more stringent mouse model of trypanosomiasis, mice were infected with T. brucei rhodesiense (STIB 900), which causes HAT in eastern Africa.
Collectively, these data show that the orthotopic IA localization of TH-MYCN cells impacts the NBL tumor microenvironment, resulting in a more stringent NBL model to study novel immunotherapeutic approaches for NBL.
