Sentence examples for are highly persistent from inspiring English sources

The new flame retardants products represent contaminants of emerging concerns and the persistence of the older ones such as PCBs and PBDEs are highly persistent in the environment and still an environmental problem particularly in aquatic systems where sediments are recognized as a sink for this class of contaminant.

We find that R&D (input) and innovation (output) are highly persistent at the firm level.

Conventional QR econometric techniques lose their validity when predictors are highly persistent.

Some perfluoroalkyl acids (PFAAs) are highly persistent and bioaccumulative, resulting in their broad coexisting distribution in humans and the environment.

Polycyclic aromatic hydrocarbons (PAHs), especially those having four or more rings, are abundant and toxic environmental contaminants that are highly persistent and difficult to remove from contaminated ecosystems.

While some toxic substances degrade and pose little long-term harm to ecosystems, others are highly persistent and find their way up the food chain and can affect human health.

Hepatitis C virus (HCV) infection is highly persistent and presents an unmet medical need requiring more effective treatment options.

If EPS and sales growth were highly persistent and, therefore, dependent on factors the company could control, the points would cluster tightly on a straight line.

CONCLUSIONS: Neuropsychiatric symptoms in dementia overall were highly persistent.

Diuron is highly persistent in the aquatic environment due to its photochemical stability.

Since the dependent variable in (5.1), ({widetilde{a}}_{it},) could be highly persistent, our fixed-effects estimation method relies on Blundell and Bond (1998) System-GMM approach (Sys-GMM hereafter).