James C. Cain

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BACKGROUND Persons with vision loss may have limited ability to experience visual arts and difficulty navigating unfamiliar environments. The Center for Advanced Visual Studies at Massachusetts Institute of Technology developed a Retinal Imaging Machine Vision System (RIMVS) "seeing machine" to project "word-images" onto the retina and permit navigation(More)
TO THE EDITOR: Financial incentives can reinforce consumer behavior (for example, offering money back for using a specific credit card), and these procedures are gaining traction to modify health behaviors. Patel and colleagues' study examining the efficacy of incentives to reinforce walking 7000 steps daily (1) is commendable, and the results underscore(More)
Precipitins to pancreatic homogenates, presumably representing isoantibodies, have been found in 28 of 33 patients with various pancreatic exocrine diseases. In 4 of 5 patients without demonstrable precipitins, pancreatic damage had either occurred more than 3 years previously or had just begun at the time of the study. Similar precipitins were found in 7(More)