perturbation

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per·tur·ba·tion

(pĕrtŭr-bāshŭn)
In physical therapy, an external force applied to a person's center of mass in an attempt to move it from the base of support
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

perturbation

(pĕr″tĕr-bā′shŭn) [L. perturbare, thoroughly disordered]
1. The state of being greatly disturbed or agitated; uneasiness of mind.
2. A disturbance or a change in a structure or function, usually as a result of an external influence.
Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
Caption: Figure 12: Representation of results for each method with perturbations.
30 experiments with the HS method have been performed and also experiments with perturbation and without perturbation in the controller were carried out with the FHS, IT2FHS, and GT2FHS fuzzy harmony search algorithms.
Johnson et al., "Analysis of general geometric scaling perturbations in a transmitting waveguide: fundamental connection between polarization-mode dispersion and group-velocity dispersion," Journal of the Optical Society of America B, vol.
Therefore, the Barnes filter will be selected in the present study to remove the small-scale perturbations in numerical simulated variables to improve the accuracy of simulated TC center.
While perturbations of infinitely small magnitude develop independently, nonlinearity makes different types of a fluid's motion to interact in physical reality which deals with finite-magnitude perturbations.
The analysis we give in sections 3 and 4 proves that the perturbations have a discontinuity which corresponds to zero phase shift and then the string is Polchinski's open string obeying Neumann boundary condition.
The estimation algorithm uses a subroutine to distinguish the controlled perturbations (with a unique duration and amplitude) initiated by another node from variations in the targeted parameters.
The key words were: trip, trips, tripping, slip, slips, slipping, perturbation, perturbations, "perturbation-based balance training", platform, treadmill, "agility training", "dynamic balance training" all linked by the term 'OR'.
When modeling genotype/phenotype relationships caused by perturbations such as disease states or drug toxicity effects, an important aspect that must be considered is that there is considerable redundancy or "promiscuity" within biological networks (Carbonell et al., 2011; Planson et al., 2012a), i.e., there are often several ways to achieve a particular biological phenotype (Payne et al., 2014).
We adopt high precision orbit propagator (HPOP) model and the parameters of the various perturbations are shown in Table 1.
In this work, we focus on the odd parity and even parity gravitational perturbations. As the main component of this paper, Section 3 includes two subsections.

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