Theorem 3.1 System (1.1) has a mature predator survival periodic solution ( 0, 0, 0, y 2 ∗ ( t ) ).
In Section 3, sufficient conditions for the global attractivity of a mature predator survival periodic solution are obtained.
Theorem 3.2 implies that increasing T and μ is propitious to the global attractivity of the mature predator survival periodic solution ( 0, 0, 0, y 2 ∗ ( t ) ).
In this section, we shall demonstrate the existence and global attractivity of the mature predator survival periodic solution of system (1.1).
In this paper, by using the comparison theorem of an impulsive differential equation and some analysis techniques, we obtain the sufficient conditions of the mature predator survival periodic solution and permanence of system (1.1).
It is quite clear that the parameters satisfy the conditions of Theorem 3.2, so we can obtain the global attractivity of the mature predator survival periodic solution, which is shown by Figure 1. Figure 1 Dynamical behaviors of system ( 1.1 ) with r = 1, d 1 = 0.5, k = 1, c = 1, d 2 = 0.3, d 3 = 0.2, λ = 0.5, d 4 = 0.4, d 5 = 0.2, p = 0.3, μ = 0.5, τ 1 = 1, τ 2 = 1, T = 1.
If IMCI coverage is to be improved sufficiently to have a beneficial effect on child survival, innovative solutions are urgently required to ensure that newly trained practitioners can transfer their skills to the workplace and maintain these skills over time.
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For example, if two users stay far away from each other in the infection time lines of most cascades, survival analysis-based solutions might still end up with assigning a weak link between them.
Several of these HSPs also seem to be important for survival in hypotonic solutions and blood.
