The present invention provides fusion proteins for the detection and treatment of neuroectodermal tumors. A pumpable cementitious slurry is formed, the slurry is mixed with a gas such as air, and is subjected to mechanically created turbulence to generate gas bubbles and create a foam, which preferably is stabilized by a foam stabilizing agent such as polyvinyl alcohol present in the slurry. The water directing device is positioned so that its second body portion is both beneath and present after the terminal edge of a roof cover. Not only can a current or future deviation be determined, but also a source of the deviation is identified allowing for a focused preventative maintenance effort. The camera can be used in a method of image enhancement with contextual data.