k1 = k1
k2 = K_I
k3 = q
k4 = k2
k5 = k3
k6 = k4
k7 = k5
k8 = k6
k9 = k
k10 = J0
k11 = J_cell_1
k12 = j_cell_2
k13 = kappa
k14 = phi
k15 = Cell_1
k16 = Cell_2
k17 = Compartment
k18 = A
k19 = N