Current limit memory effects

The most accurate method of calculating the dynamical behaviour of surfactants is to integrate the equations of motion of all of the atoms in the system. It is obvious that the molecular dynamics calculations described in this chapter give only a rough estimate of the real situation. Such MD techniques require computer processor speeds and memory capacities that currently limit their applicability to a few nanoseconds of molecular motion. This is inadequate for many chemical processes of surfactants which occur on the microsecond (or longer) time-scales. Effects which are dependent on molecular diffusion cannot be investigated due to the... 

Pharmacotherapy. The currently available treatments for PD are symptomatic, and do not alter the course of the disease. The earliest treatment that is still in limited use today, is with the anticholinergic medications, such as trihexiphenidyl or benzotropine. These drugs are useful, particularly for tremor. However, their use is often prob-lematic because of unpleasant side-effects, such as memory disturbances, blurred vision, sedation, dry mouth, or urinary retention, particularly in older patients. 

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