Neuroscience researchers identify a cerebral cortex with two functioning hemispheres: a left hemisphere associated with language and speech and a right hemisphere associated with visual-motor activities. Additionally, neuroscientists argue that contemporary lifestyles favor the verbal, logical left brain and often ignore the truths that present in the right brain. Psychotherapy techniques range in their use of left-brain verbal discourse and right-brain nonverbal discourse. In a case study, the author describes experiences integrating both verbal and nonverbal therapy with a client with severe anxiety and depression. Nonverbal therapy involved annotated scribble drawings. Images in the drawings became the stimuli for verbal discourse with the client. Other client responses to the annotated scribble drawings are described.
This paper presents source-level transformations that improve the performance of programs using synchronous and asynchronous message passing primitives, including remote call to an active process (rendezvous). It also discusses the applicability of these transformations to shared memory and distributed environments. The transformations presented reduce the need for context switching, simplify the specific form of interprocess communication, and/or reduce the complexity of the given form of communication. One additional transformation actually increases the number of processes as well as the number of context switches to improve program performance. These transformations are shown to be generalizable. Results of hand-applying the transformations to SR programs indicate reductions in execution time exceeding 90 % in many cases. The transformations also apply to many commonly occurring synchronization patterns and to other concurrent programming languages such as Ada and Concurrent C. The long term goal of this effort is to include such transformations as an optimization step, performed automatically by a compiler.
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