// process_cell(cell_p+x+y*x_cell+z*x_cell*y_cell);
process_cell(cell_p,x,y,z,x_cell,y_cell,z_cell,a_p_range,a_p_faktor,a_p_p0,&c_conc);
// process_cell(cell_p+x+y*x_cell+z*x_cell*y_cell);
process_cell(cell_p,x,y,z,x_cell,y_cell,z_cell,a_p_range,a_p_faktor,a_p_p0,&c_conc);