Variability analysis is the science of measuring the degree and character of patterns of variation of a time-series of a biologic parameter, in order to evaluate the state of the underlying complex system responsible for the biologic signal.
Thus, despite the use of a 7-point rating scale, we replicated the bimodal rating pattern reported by Sergent and Dehaene (2004) and, to some extent, the all-or-none character of that pattern, although "discontinuous transition" is perhaps a safer description.
A bit, in this vector, is set to one if the character of the pattern matches one of the alphabet characters.
Here the quadratic term (gamma u^{2}) plays an essential role; it was first introduced into the GSH equation mathematically in [3] in order to model the threshold character of periodic pattern formation.
Neural crest cells are a defining character of vertebrates, patterning the face and much of the head and pharyngeal or gill region in the embryo.
We then provide evidence that a two dimensional model is already adequate for describing power law statistics of avalanches and fractal character of dislocation patterning.
For a sequence S∈ Σ ℓ and 0< i≤ ℓ, S[ i] denotes the i-th character of S. A pattern of length ℓ is a word P∈{0,1} ℓ, i.e. a sequence over {0,1} of length ℓ.
The character of the respiratory pattern and effort was also noted on each occasion (resting respiratory rate had previously been assessed as highly variable from time to time in each animal and so was not routinely recorded).
Our approaches to questions of that kind have been strongly influenced in recent years by evolutionary psychology, which tells us that we are endowed with traits of character and patterns of feeling that were "adaptive" in the conditions from which human societies first emerged.
Such cases can easily be extended to other examples worldwide due to the general character of urban settlement patterns.
