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This variation is called vignetting, and can be corrected by selectively brightening the perimeter of the image. Flat-field correction ( FFC) is a digital imaging technique to mitigate the image detector pixel-to-pixel sensitivity and distortions in the optical path. It is a standard calibration procedure in everything from personal digital ...
Refractive surgery. Refractive surgery is optional eye surgery used to improve the refractive state of the eye and decrease or eliminate dependency on glasses or contact lenses. This can include various methods of surgical remodeling of the cornea ( keratomileusis ), lens implantation or lens replacement.
It has to be noted, though, that the iterative Cochrane–Orcutt procedure might converge to a local but not global minimum of the residual sum of squares. This problem disappears when using the Prais–Winsten transformation instead, which keeps the initial observation. See also. Hildreth–Lu estimation; Newey–West estimator
Operation Scarlift. Operation Scarlift (also known as Project 500 or The Bond Issue Program [1]) was a program carried out by the Pennsylvania government in the 1960s and 1970s. [2] Its mission was to repair environmental damage caused by abandoned mine lands, acid mine drainage, and other issues associated with historic mining.
Senning procedure. The Senning procedure is an atrial switch heart operation performed to treat transposition of the great arteries. It is named after its inventor, the Swedish cardiac surgeon Åke Senning (1915–2000), also known for implanting the first permanent cardiac pacemaker in 1958.
Prism is a studio album by English jazz bassist Dave Holland. The record was released via the Dare2 label on September 2, 2013. [10] [11] This album is a milestone of Dave Holland's career as a leader—the forty year anniversary of his debut, the album Conference of the Birds released in 1973. [12]
Scheffé's method is a single-step multiple comparison procedure which applies to the set of estimates of all possible contrasts among the factor level means, not just the pairwise differences considered by the Tukey–Kramer method. It works on similar principles as the Working–Hotelling procedure for estimating mean responses in regression ...
The effect of Yates's correction is to prevent overestimation of statistical significance for small data. This formula is chiefly used when at least one cell of the table has an expected count smaller than 5. Unfortunately, Yates's correction may tend to overcorrect.