Pervading the artist's work is a wariness and sense of regret at the persistent human impulse to destroy.
The discrepancy between the PSA and iPSA results can again be explained in the context of persistent versus impulse perturbations.
Since the discrepancy between PSA and iPSA arises from a fundamental difference in the manner of which parametric perturbations are realized (i.e. persistent vs. impulse), the same caveat and solution can be generalized to the global PSA, in which the perturbations are no longer infinitesimal.
Faced with a dangerous combination of contagious recessionary impulses, persistent macroeconomic imbalances and a reckless financial sector, the talk was about preserving a world of "solid" fundamentals and open trade and investment regimes.
Obsessions are recurring or persistent thoughts, images, or impulses that, rather than being voluntarily produced, seem to invade a person's consciousness despite his attempts to ignore, suppress, or control them.
But really that's the least of his troubles: tormented by dark memories, suicidal impulses and persistent, unrelieved erections, he's obsessed with a transsexual stripper named Sweet Girl, and is being stalked by the Angel Gabriel, who sometimes assumes the form of a pigeon.
OCD is characterized by intense anxiety caused by unwanted, intrusive, persistent thoughts, images, or impulses (obsessions), leading to repetitive behaviours or mental acts (compulsions) that the patient feels driven to perform to prevent or reduce his or her distress or anxiety [ 2].
It remains a persistent challenge to the generalizing impulse in anthropology and in the academy.
By comparison the play's other strata -- involving things like Richard's lifelong bitterness toward his father, the disconnect between Liu and Erling, who is more interested in rap singing than science, and Minna's persistent anger at the controlling impulses of her mother -- seem like the stuff of rather ordinary domestic melodrama.
The importance of this association lies in the prominent causal role that has been attributed to nodal persistent Na+ conductances in generating ectopic impulse activity in the peripheral nervous system (10, 22).
