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Discover LudwigThe phrase "an sirs" is not correct in written English.
It is likely a mistaken combination of articles and nouns, as "sirs" is a plural noun and should not be preceded by "an."
Example: "I would like to address you, sirs, regarding the matter at hand."
Alternatives: "dear sirs" or "to the gentlemen."
Exact(10)
In this paper, an SIRS model with diffusion is studied.
We study an SIRS epidemic model with diffusion and nonlinear incidence rate is studied.
This paper addresses an SIRS model with direct immunization and an infective vector in complex networks and performs the dynamical analysis for this model.
By investigating an SIRS epidemic model [24] with direct immunization on complex networks, the result shows that the direct immunization can increase the epidemic threshold and reduce the prevalence of infectious disease.
Considering the feasibility of the loss of immunity for the recovered computers, Gan et al. [8] proposed an SIRS computer propagation model and studied the stability of the model.
Ruan and Wang [15] considered the fixed infection force (frac{aI^{2}}{b+I^{2}}), which corresponds to a saturated infection force, and obtained rich dynamical behaviors in an SIRS model.
Similar(49)
This first model is without antigenic evolution, so is given by an SIR (not SIRS) model.
A compartmental model based on these assumptions is customarily called a SIR or SIRS model.
A) Sir David Bruce B Robert Koch CC) Sir William Osler D Sir Ronald Ross E Theobald Smithth Decide first.
He remains a sir, and a yacht owner.
Another fear: Calling a sir "ma'am," or a ma'am "sir".
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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com