Another function of the jig is to steady the piece of wood being cut to prevent excess cutting or inaccurate cuts. The size, shape, and function of a woodworking jig will vary significantly according to how it is being used and with what tool it is being used.
WMAP image of the (extremely tiny) anisotropies in the cosmic background radiation. Anisotropy /ËÃ¦naÉªËsÉtrÉpi/ is the property of being directionally dependent, which implies different properties in different directions, as opposed to isotropy.
Fractional anisotropy is a method that is used to emphasize and evaluate white matter fiber tracts. This method has been applied to MRI scans in diffusion weighted images. If full tensor data acquisition is applied, the fractional anisotropy (FA) is calculated from the eigenvalues Î» 1, Î» 2, and Î» 3 of the diffusion tensor: where Î» is the mean diffusivity (trace/3). FA takes on values between 0 (perfectly isotropic diffusion) and 1 (the hypothetical case of an infinite cylinder) and is thus directly comparable between subjects. Here FA is multiplied by 1,000.