An automotive urea solution monitoring device is deployed in conjunction with the urea tank of a selective catalytic reduction vehicle. More particularly light emitting systems that utilize wavelength converting semiconductor layer stacks, and preferred amounts of potential well types in such stacks to achieve more optimal performance are disclosed. Another is a resin composition comprising the following polymers, and. 5 mm under a load of 100 Kg, the outer core layer has an outer diameter of from about 1. A swapping step is then effected to swap a location of a the inactive program context with the active program context and any program context therebetween. and a portion for a spout of the shipping bladder container to protrude through for pouring.