The goal of CBT-I is to target those factors that may maintain insomnia over time, such as dysregulation of sleep drive, sleep-related anxiety, and sleep-interfering behaviors.
As a result, species interacting in a geographical mosaic may co-evolve faster and towards different equilibrial states than under panmictic conditions, and may maintain polymorphisms over a longer term than those interacting locally (J. Thompson in Grant et al. 2010, and refs. therein).
Interestingly, each area is dominated by a single cluster, suggesting founder individuals may maintain an advantage over other isolates, whether subsequently introduced or locally generated.
Most PCR-positive rodents were positive only once, suggesting that rodent infections are generally short-lived and that ticks rather than rodents may maintain the infection over winter.
In addition, resistance accumulation reduces viral fitness and may maintain CD4 cell counts over prolonged periods associated with clinical non-progression for some time.
Similarly, large paracentric chromosomal inversions in A. gambiae [26] may maintain LD and differentiation over only parts of the genome, or may be a driving force in ecological population differentiation [27], [28].
51 However, this approach has been based on the concept that statins with a longer half-life may maintain their lipid lowering effect over a longer period of time.
Extrinsic factors causing increased density-independent mortality (d) may maintain the population abundance below its carrying capacity over longer time periods.
ADA may maintain this balance.
The presence of elevated CXCL13 levels in seropositive patients from two distinct cohorts composed of patients with established and recent-onset RA suggests that this abnormality may be maintained over the course of the disease and may not be extensively influenced by disease duration or prior therapy.
