Allen et al. have studied some discrete-time SI, SIR, and SIS epidemic models, compared the dynamics of deterministic and stochastic discrete-time epidemic models, and also applied the discrete epidemic model to the spread of rabies [1 3].
Even if you've never studied it, take some time in advance to learn a polite greeting and "thank you".
Host variables that affect susceptibility to infection, such as age, immunodeficiency, and nutritional status are more easily measured and have been studied for some time, whereas the study of pathogen specific determinants of disease risk is more recent.
I studied theater, moved to New York, and then studied some more; this time, in the even more radically liberal field of Performance Studies, reading queer theorists and pouring over art of the 70s and 80s by artists like Ray Navarro and Keith Haring.
Although the beneficial effects of spices have been studied for some time on hypoglycaemic effects, studies carried out on the likely additional protective effects against diabetic complications are few.
He studied for some time in Belgrade.
Amid speculation that Russia's withdrawal signalled a rift between Moscow and Damascus, Assad's Administration publicly insisted that, in fact, the pullback "happened in complete coördination," and that its implications had been "carefully and accurately studied for some time".
The Volterra and Wiener kernels of non-linear systems have been studied for some time now.
[2] The speciation of Sb in sulfidic solutions has been studied for some time, but new results are still emerging.
Palliative care via videoconferencing has been studied for some time in Canada.
