Myringotomy could be relieved by myringotomy, which equalized the pressure on each side of the tympanic membrane. Widespread inappropriate use of the procedure later led to it falling out of use. However, it was reintroduced by Hermann Schwartze in the 19th century. An inherent problem became recognized, namely the tendency of the tympanic membrane to heal spontaneously and rapidly, reversing the beneficial effects of the perforation. In order to prevent this, a tympanostomy tube, initially made of gold foil, was placed through the incision to prevent it from closing. Ádám Politzer, a Hungarian-born otologist practicing in Vienna, experimented with rubber in
River incision River incision River incision is the narrow erosion caused by a river or stream that is far from its base level. River incision is common after tectonic uplift of the landscape. Incision by multiple rivers result in a dissected landscape, for example a dissected plateau. River Incision is the natural process by which a river cuts downward into its bed, deepening the active channel. Though it is a natural process, it can be accelerated rapidly by human factors including land use changes such as timber harvest, mining, agriculture, and road and dam construction. The rate of incision is a function