perturbation


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Related to perturbation: Perturbation theory
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  • noun

Synonyms for perturbation

Synonyms for perturbation

an unhappy and worried mental state

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(physics) a secondary influence on a system that causes it to deviate slightly

activity that is a malfunction, intrusion, or interruption

a disposition that is confused or nervous and upset

Synonyms

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the act of causing disorder

References in classic literature ?
When Don Quixote heard this his amazement was redoubled and his perturbation grew greater than ever, for it suggested itself to his mind that Sancho must be dead, and that his soul was in torment down there; and carried away by this idea he exclaimed, "I conjure thee by everything that as a Catholic Christian I can conjure thee by, tell me who thou art; and if thou art a soul in torment, tell me what thou wouldst have me do for thee; for as my profession is to give aid and succour to those that need it in this world, it will also extend to aiding and succouring the distressed of the other, who cannot help themselves.
I was very curious to know what I had said or done to cause her so much perturbation a moment before and so I continued to importune her to enlighten me.
With backward looks of perturbation, they hastened.
While these newly-born notions were passing in their heads, the perturbation of Elizabeth's feelings was at every moment increasing.
Nevertheless, even in my present state of perturbation, I protest that I feel happy.
Little did I imagine, my dear Mother, when I sent off my last letter, that the delightful perturbation of spirits I was then in would undergo so speedy, so melancholy a reverse.
Natures that have much heat, and great and violent desires and perturbations, are not ripe for action, till they have passed the meridian of their years; as it was with Julius Caesar and Septimius Severus.
Also, there were comings and goings, and the erstwhile placid atmosphere of the cabin was vexed with strange perturbations and unrest.
La SONEDE a explique dans un communique publie vendredi a Tunis que cette perturbation est due aux travaux de maintenance sur la conduite principale de distribution situee sur la route de la Marsa (route perturbations, coupure d'eau, distribution, eau potable, Tunis, SONEDEnationale 9).
The behavior of the perturbations in both backgrounds is as follows: in flat space (section 3), the perturbations are disappearing because of the presence of E and when E [approximately equal to] 1/[lambda] we end by no perturbation and our system is stable; and in curved space (section 4) we did not get any perturbation for all E which means the presence of the super-gravity does not allow any perturbation to appear in the same way that E does in flat space.
To accurately predict the risk for ID from a persons complete DNA sequence, it is essential to know how and when genetic perturbation of a gene regulatory element causes abnormal neurodevelopment.
A controlled excitation or perturbation of the input parameters is used to obtain a suitable variation in the node measurements thus ensuring convergence and improving accuracy.
This has led some researchers and clinicians to consider the efficacy of 'perturbation' training, which involves unexpected external perturbations during walking (Shapiro & Melzer, 2010) that mimic environmental slips and trips.
To tackle the complexity in biological systems, we need to use multi-scale approaches combining small-scale models, centered in a faithful mechanistic description of the mode of action of the perturbation, with large-scale models, being the more common approach for genome-scale metabolic models (GEMs), which essentially capture all enzymatic and transport reactions possible within a cell (O'Brien et al.
The lowest effect concentration (LEC) for each chemical and end point was calculated as the concentration that produced a fold change perturbation at least one standard deviation (i.