The stability of transmembrane aggregates of simple proteins is often only marginal and can therefore be regulated by environmental signals or small sequence modifications.
The modifications in spatial phase are large, but do not exceed the criterion of 50% difference.
Pharmacological probes were used to control levels of postsynaptic activity and induce activity-dependent modifications in adult visual cortex.
Experiments 2 and 3 introduced modifications that, it was hoped, would enhance learning.
How effective are input modifications such as glossing?
We explored several modifications, all of which could be derived from an initial stage similar to the energy model.
Several groups have reported biochemical modifications in the vitelline envelope of amphibians.
The present results demonstrate that this process produces extensive ultrastructural modifications at cytoplasmic and nuclear levels.
