Michael P. Johnson

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BACKGROUND Research suggests that limitations in the hip motion of baseball players may lead to altered motion at the glenohumeral joint to maintain throwing velocity, thereby predisposing the upper extremity to injury. PURPOSE To measure and evaluate the correlation between hip and shoulder rotational range of motion (ROM) in healthy professional(More)
As more and more of the items that people carry around with them become electronic and require electricity, the issue of portable power becomes important. This is especially true for the large power demands of the emerging eld of Wearable Computing. Starner has done a study on the possibility of leeching power normally wasted by the human body through(More)
The generalization error of a function approximator, feature set or smoother can be estimated directly by the leave-one-out cross-validation error. F or memory-based methods, this is computationally feasible. We describe an initial version of a general memory-based learning system GMBL: a large collection of learners brought into a widely applicable(More)
BACKGROUND Evaluation studies of clinical decision support systems (CDSS) have tended to focus on assessments of system quality and clinical performance in a laboratory setting. Relatively few studies have used field trials to determine if CDSS are likely to be used in routine clinical settings and whether reminders generated are likely to be acted upon by(More)
Schizophrenia is often associated with emotional blunting--the diminished ability to respond to emotionally salient stimuli--particularly those stimuli representative of negative emotional states, such as fear. This disturbance may stem from dysfunction of the amygdala, a brain region involved in fear processing. The present article describes a novel animal(More)
OBJECTIVE To study how social interactions influence physician adoption of an electronic health records (EHR) system. DESIGN A social network survey was used to delineate the structure of social interactions among 40 residents and 15 attending physicians in an ambulatory primary care practice. Social network analysis was then applied to relate the(More)