The variability in the time points at which thresholds changed in response to ethanol was accounted for in the statistical analyses (Fig. 1).
No abrupt or threshold changes in hydrologic characteristics were identified along the urban land use gradient.
The power function, in contrast, describes a more gradual increase in energy use with increasing swimming speed, and does hence not predict any threshold changes in the relationship.
Given the lack of ABR threshold changes in these mice, it is apparent that the adult afferent system is functionally intact, further suggesting that within the cochlea, changes induced by loss of α9 gene expression as described here are most likely limited to the efferent cholinergic system.
This suggests that below the density threshold, changes in snow depth will have a lesser effect on the population than changes in temperature.
Significantly increased threshold changes in depolarizing threshold electrotonus were established in patients with severe spinal muscular atrophy from the present study, most likely reflecting a reduction in fast K+ conductances.
A number of molecular effects might determine the plasticity of this threshold: changes in gene transcription, in neuronal connectivity, or in growth of new neuronal cell bodies or in migration of circulating monocytes to form new glial elements.
When intracranial pressure rises to a critical threshold, changes in blood pressure due to dysfunctional autonomic reflexes may produce a syndrome of position-evoked crescendo headache, visual obscurations, lightheadedness, and exacerbation of focal symptoms.
Furthermore, to establish whether or not there is evidence of a threshold change in ecosystem functioning coincident with the change in climate at 11,700 cal.
Interestingly, the mechanism by which the species interacted with nitrogen remained stable across this threshold change in climate and in the dominant tree species.
