We prove that every dynamical system $X$ with a free action of countable amenable group $G$ by homeomorphisms has zero-dimensional extension $Y$ which is faithful and principal, i.e. $G$-invariant measure $\mu $ on exactly one preimage

Chemical Reaction Network theory allows us to decide whether many classes of networks have the capacity for multiple positive equilibria, based on their structural properties. In this way, the deficiency zero theorem asserts that every weakly reversible network of zero deficiency has a unique equilibrium, for any choices of parameter values. We make use of CRNT, aiming not only to discriminate ...

abstract this study was conducted at rudasht research farm in isfahan to evaluate tolerance to zinc (zn) deficiency of 30 spring wheat genotypes, using split plots in a randomized complete blocks design with triplications. main plot consisted of two zn levels (zero and 80 kg zn ha-1 applied as zinc sulfate at planting). the results of anova as well as correlations between tolerance and suscepti...