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The intention of a chiropractic adjustment is to affect or correct the alignment, motion and/or function of a vertebral joint. Specifically, adjustments are intended to correct "vertebral subluxations", a non-scientific term given to the signs and symptoms that are said by chiropractors to result from abnormal alignment of vertebrae. [2] In 2005, the chiropractic "subluxation" was defined by ...
Aberration (astronomy) A diagram showing how the apparent position of a star viewed from the Earth can change depending on the Earth's velocity. The effect is typically much smaller than illustrated. In astronomy, aberration (also referred to as astronomical aberration, stellar aberration, or velocity aberration) is a phenomenon where celestial ...
Laser-assisted new attachment procedure ( LANAP) is a surgical therapy for the treatment of periodontitis, intended to work through regeneration rather than resection. This therapy and the laser used to perform it have been in use since 1994. [citation needed] It was developed by Robert H. Gregg II [1] [2] and Delwin McCarthy .
The Heckman correction is a statistical technique to correct bias from non-randomly selected samples or otherwise incidentally truncated dependent variables, a pervasive issue in quantitative social sciences when using observational data. [1] Conceptually, this is achieved by explicitly modelling the individual sampling probability of each observation (the so-called selection equation ...
TikTok has come under scrutiny due to data privacy violations, mental health concerns, misinformation, offensive content, and its role during the Israel–Hamas war. [9] Countries have fined, banned, or attempted to restrict TikTok to protect children or out of national security concerns over possible user data collection by the Chinese government through ByteDance. [9] [10] TikTok has been ...
Dunnett's test is performed by computing a Student's t-statistic for each experimental, or treatment, group where the statistic compares the treatment group to a single control group. [8] [9] Since each comparison has the same control in common, the procedure incorporates the dependencies between these comparisons. In particular, the t-statistics are all derived from the same estimate of the ...
Atmospheric correction is the process of removing the scattering and absorption effects of the atmosphere on the reflectance values of images taken by satellite or airborne sensors. [1] [2] Atmospheric effects in optical remote sensing are significant and complex, dramatically altering the spectral nature of the radiation reaching the remote sensor. [3] The atmosphere both absorbs and scatters ...
Batch effect. In molecular biology, a batch effect occurs when non-biological factors in an experiment cause changes in the data produced by the experiment. Such effects can lead to inaccurate conclusions when their causes are correlated with one or more outcomes of interest in an experiment. They are common in many types of high-throughput ...