&K_\alpha \left[\frac{k_0}{k_0+k_0} \;_0D_t^{0-\alpha}+ \frac{k_0}{k_0+k_0} \;_0\mathcal{T}_t^{0-\alpha}(k_0+k_0) \right] \Delta A(x,t)\nonumber \\ &+&K_\alpha \left[\frac{k_0}{k_0+k_0} \;_0D_t^{0-\alpha}- \frac{k_0}{k_0+k_0} \;_0\mathcal{T}_t^{0-\alpha}(k_0+k_0) \right] \Delta B(x,t)  