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251.
Electrical responses of the human retina 总被引:1,自引:0,他引:1
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This article examines a comprehensive model of information seeking (CMIS) resulting from the synthesis of three theoretical research streams: the health belief model, uses and gratifications research, and a model of media exposure and appraisal. The model postulates that four health-related factors—demographics, direct experience, salience, and beliefs—determine two information carrier factors—perceptions of information carrier characteristics and utility—which, in turn, determine information-seeking actions. A sample of 366 adult women drawn from a medium-size midwestern city was surveyed by telephone on the issue of mammography use and cancer-related information seeking. The model resulted in an excellent fit to the data received. However, the values of the paths associated with the health-related factors were extremely low, suggesting that models of information seeking from mass media, such as magazines, should focus on purely communicative factors. These results are discussed in terms of future research and the pragmatic benefits of this theoretical framework. 相似文献
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The lack of conceptual frameworks available for integrating research on organizational computer-based communication technologies is documented. An integrated model for studying communication support phenomena in organizations is formalized from a knowledge management perspective using set-theoretic notation. Key constructs for understanding and exploring communication support systems are identified, such as knowledge workers, knowledge management activities, communicate-abilities, and knowledge management episodes. The implications associated with the identification and formalization of each of the foregoing constructs is discussed and further research avenues are explored. The model provides researchers and system developers with a means of studying both human and computer-based knowledge workers in organizations. Two types of communication support systems are defined. 相似文献
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FERN L. JOHNSON 《人类交流研究》1977,3(2):135-145
This study investigated role-taking and referential communication abilities in children. The effects of age, sex, and IQ on both abilities were tested, and the effect of age of receiver on referential communication ability was also examined. Multiple regression analyses were utilized to determine how well the independent variables predict the measures of role-taking and referential communication. Finally, the relationship between role-taking and referential communication was assessed. The participants were 32 first-graders and 32 third-graders. At each grade level, there were equal numbers of boys and girls. Age was found to affect performance on role-taking and communication tasks. Both sex of the child and IQ were found to affect referential communication performance. The relationship between role-taking and referential communication abilities was low. Interpretation of significant results is given, and testing procedures are discussed. 相似文献
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