representing his earlier poetry, theory of kitchen knife was considered as a remarkable accomplishment of the 1970s’ poetry that reflected the society. cell injury and even cell death follow. the bar is usually attached permanently to a ring or staple that is fixed with screws or nails to woodwork or a wall at the same level as the eye screw. the principle of graduated interval recall is based on the concept of distributed learning, where the learner is presented the information to be learned with gradual increases in the length of time between presentation. 