regression toward the mean
1.(3)The mean neurite length of the experimental group was statistically longer than that of the control and reference group. (4)The neurites of some DRGs in experimental grorp extended toward the explant of spinal lamina Ⅱ. (5)There was no significant difference of the mean neurite length between control and reference group.
7.Research and determination were directed toward the biomass and productivity of arbor and shrub layers of an artificial spruce (Picea likiangensis var. balfauriana)forest aged 28 years and situated in an alpine forest area of western Sichuan with 2900 m ASL. Additionally,regression equations haye been established for estimating the biomass of all organs of a single tree of the arbor layer.
10.For the regression estimation when the auxiliary variate is correlated with the disturbance, the bias and mean square error (MSE) of the regression estimator are obtained, and the estimator of the MSE is presented.


