31. Soak the tubers several hours ( not overnight ) in tepid water and root stimulator . 32. The high-speed stimulator was manufactured by Caldwell Inc . of Kennewick, Washington. 33. The stimulator is essentially a brain pacemaker. 34. Then the stimulator was turned on again for good, and some patients steadily improved. 35. Borgens and his colleagues began work on the oscillating field stimulator in the late 1980s. 36. It has also been shown as a stimulator of several matrix metalloproteinases ( MMPs ). 37. This experiment showed that an implanted electrical stimulator device could restore some degree of vision. 38. Stimulator is large, conical and narrow.39. The stimulator is narrow, conical, slightly flattened at its end with some papillae. 40. Stimulator 's debut album was licensed by the Lab / Universal Records in 2005.