The new second-order accurate methods are free of numerical diffusion.
As a result, the presently developed methods are free from other complicated methods used earlier by various workers to determine the solutions of such integral equations.
Interestingly, all methods tend to err more often to the positive side, i.e., they overestimate life expectancy, although the non-classical methods are free from the classical method's sources of error that is nested in the stationarity assumption.
These systems on the contrary to other chemical methods are free of any biocides and toxic chemicals and remove all kinds of microorganisms in a short time in a very low temperature.
Statistical methods including SDNN, SDANN and RMSSD are affected by the quality of the QRS, but geometrical methods are free of these artifacts.
Ab initio QM methods are free of empirical parameters and offer a systematic (and controllable) tuning of their quality by improving the underlying basis sets of atomic orbitals together with a balanced inclusion of electronic correlation effects.
