Sentence examples for be persistent in the from inspiring English sources

Objectives: Dichlorodiphenyl dichloroethene (DDE) and polychlorinated biphenyls (PCB), toxic contaminants known to be persistent in the environment, may affect growth.

Applying Theorem 4.4, x and u will be persistent in the mean.

They also pointed out that a small enough stochastic disturbance could cause the microorganism to die out even if the microorganism could be persistent in the deterministic model.

Definition 4.1 System (1.3) is said to be persistent in the mean, if lim inf t → ∞ 1 t ∫ 0 t I ( r ) d r > 0 a.s.s

(iii) The microorganisms (x_{i}(t)) are said to be persistent in the mean if there exist positive constants (lambda_{i}) such that (liminf_{trightarrow +infty }langle x_{i}(t)rangle geq lambda_{i}) ((i=1,2)) a.s.s .s

System (1.2) is said to be persistent in the mean if liminf_{trightarrowinfty}frac{1}{t} int_{0}^{t} x s),ds>0 quadtext{a.s.,}qquad liminf _{trightarrowinfty}frac{1}{t} int_{0}^{t} y(s),ds>0 quadtext{a.s.}.

Picloram is well known for being persistent in the soil although its persistence alone was not tested here.

In general, the degree of spatial autocorrelations is persistent in the snowmelt season for both years.

The main knick points are mainly due to tectonics and have been persistent in the landscape since the Upper Pliocene.

Pharmaceuticals are designed to have a specific mode of action and many of them are persistent in the body.

The irradiation process was found to induce the formation of a deamination radical which was persistent in the solid state.