Relation of resemblance in information retrieval

A method using the amount of semantic information of query terms as weight in a fuzzy relation of resemblance is presented. The relation can be used to partially order documents in decreasing order of resemblance with the query. Large operational bibliographic data bases are used to test the validity of the approach.     

Modulation of an activity response with associative and nonassociative fear in the rat: A lighting differential influences the form of defensive behavior evoked after fear conditioning

Rats confronted with the onset of a light gradient display a transient increase in locomotion called theactivity response (AR) and a dark preference (Godsil & Fanselow, 2004). These experiments demonstrate that the magnitude of the AR can be blunted with Pavlovian fear-conditioning procedures via associative and nonassociative fear. Although manifested in decreased locomotion, the blunted AR effect was not due to increased freezing or immobility behaviors. Instead, rats displayed reduced rearing and an increase in a class of behaviors calledstationary activity. These results suggest that the lighting differential supplied by the cue influences the topography of defensive behavior and reduces the expression of freezing. This procedure provides a means by which to examine learned and unlearned defensive responses to the same stimulus.     

Root causes of errant ordered radiology exams: Results of a needs assessment

A comprehensive needs assessment was conducted at ATA hospital to determine the root causes of a high number of errant radiology orders from requesting physicians. The Human Performance Technology Model, Gilbert's Behavior Engineering Model, and Rummler and Brache's Nine Performance Variables Model guided the needs assessment process. Three solutions were proposed. The development of the long‐term solution, a software utility, has been initiated. The Behavior Engineering Model was used to identify possible solutions to post‐training performance gaps identified during the evaluation.