8 results on '"Maffee, A"'
Search Results
2. Designing Environments for Manageable Wayfinding
- Author
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Wan, Peng-Hui Maffee
- Abstract
Wayfinding is a kind of spatial riddle that people encounter almost daily. Although it has been well documented that wayfinding elements--namely, environmental cues, people and time--significantly influence wayfinding, there has been little work done to examine the effectiveness of those influences. In particular, the notion of wayfindingly manageable environment is investigated in the dissertation. A wayfinding task is termed as manageable, whenever a way-seeker successfully navigates the task. When a significant number of wayfinding tasks in an environment are determined to be wayfindingly manageable, the whole environment can be claimed as wayfindingly manageable. "How cues are arranged so that an environment becomes wayfindingly manageable?" is the main research problem considered in the dissertation. This is illustrated through a consecutive three-step development process of theory, visualization and simulation, which looks at the issue from both environment-centered and people-centered perspectives. The first step, engages in the environment-centered perspective, in developing a measure for calculating manageability for wayfinding, expressed in terms of variables at the level of decision points, pair of decision points, routes, tasks and environment, through a paper-based experiment and statistical analyses. The second step is to develop a visualization/simulation approach to apply the criterion of wayfinding manageability considered from both environment-and people-centered views. As a first pass, the measure of manageability developed in the first step is employed in the visualization to explore the issue at the environment-centered level. From the people-centered view, an agent-based modeling simulation is considered in which people-agents are have settings for wayfinding strategies for different wayfinding tasks and associated with time-based benchmarks. Wayfinding-decision processes involving people-agents, namely, wayfinding strategies and time-based benchmarks are retrieved from a computer-based experiment and statistical analyses. The last step in the development process is implementing an agent-based modeling application in which environmental cues are behavior-control agents, and way-seekers are rule-based people agents. Both one-way passive and two-way interactive environmental cues are captured in the application. Different wayfinding tasks for a single environment with different settings for sign-placement are used as proof of concept for demonstrating wayfinding manageability. The ultimate goal, of course, is for this agent-based modeling application to be a design tool for navigable environments through generative manipulation of wayfinding elements, mostly, environmental cues. This dissertation, developed from studies in psychology, is an attempt to make an original contribution to our understanding of the design of wayfindingly navigable environments, in particular, in architecture and environmental graphic design. The methodology comprising experiments, analyses, visualization, and simulation employed in this dissertation is expected to be applicable to other behavior related studies in the fields of design, architecture and psychology. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com/en-US/products/dissertations/individuals.shtml.
- Published
- 2011
3. Inflammatory myofibroblastic tumor presenting with tracheal obstruction in a pregnant woman
- Author
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Amir, Roy, Danahey, Daniel, Ferrer, Karen, and Maffee, Mahmoud
- Published
- 2002
- Full Text
- View/download PDF
4. Triadic Relationship Of Icon Design For Semi-Literate Communities
- Author
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Peng-Hui Maffee Wan, Klarissa Ting Ting Chang, and Rax Suen Chun Lung
- Subjects
semi-literate ,ComputerApplications_MISCELLANEOUS ,mobile app ,Icon ,GUI - Abstract
Icons, or pictorial and graphical objects, are commonly used in human-computer interaction (HCI) fields as the mediator in order to communicate information to users. Yet there has been little studies focusing on a majority of the world's population – semi-literate communities – in terms of the fundamental knowhow for designing icons for such population. In this study, two sets of icons belonging in different icon taxonomy – abstract and concrete – are designed for a mobile application for semi-literate agricultural communities. In this paper, we propose a triadic relationship of an icon, namely meaning, task and mental image, which inherits the triadic relationship of a sign. User testing with the application and a post-pilot questionnaire are conducted as the experimental approach in two rural villages in India. Icons belonging to concrete taxonomy perform better than abstract icons on the premise that the design of the icon fulfills the underlying rules of the proposed triadic relationship., {"references":["ITU. Measuring the Information Society: The ICT Development Index.\nInternational Telecommunications Union, 2012.","UNCTAD. Information economy report: science and technology for\ndevelopment - The new paradigm of ICT. United Nation Conference on\nTrade and Development, 2012.","Half of India's homes have cellphones, but not toilets.\nhttp://www.thehindu.com/news/national/article2992061.ece, 2012.","Garcia, M., Badre, A. N., and Stasko, J. T. Development and validation\nof icons varying in their abstractness. Interacting with Computers 6,\n(1994), 191-211.","Schroder, S., and Ziefle, M. Effects of icon concreteness and complexity\non semantic transparency: younger vs. older users. Presented at\nconference, ICCHP '08 Proceedings of the 11th international conference\non Computers Helping People with Special Needs. 2008.","Gittins, D. Icon-based human-computer interaction. International\nJournal of Man Machine Studies 24, (1986), 519-543.","McDougall, S. J. P., Curry, M. B., and de Bruijn, O. Exploring the\neffects of icon characteristics on user performance: The role of icon\nconcreteness, complexity and distinctiveness. Journal of Experimental\nPsychology: Applied 6, 3 (2000), 291-306.","Caplin, S. Icon design: Graphics Icons in Computer Interface Design.\nCassell, 2001.","Havelock, E. A. Prologue to Greek Literacy. University of Cincinnati\nPress, 1971.\n[10] Grisedale, S., Graves, M., and Grunsteidel, A. Designing a graphical\nuser interface for healthcare workers in rural India. Presented at\nconference, Proceedings of the ACM Conference on Human Factors in\nComputing Systems (CHI) (1997).\n[11] Parikh, T., Ghosh, K., and Chavan, A. Design considerations for a\nfinancial management system for rural, semi-literate users. Proceedings\nof the ACM Conference on Human Computer Factors in Computer\nSystems (CHI) (2003).\n[12] Medhi, I., Sagar, A., and Toyama, K. Text-Free user interfaces for\nilliterate and semiliterate users. Inf. Technol. Int. Devel 4, 1 (2007),\n37-50.\n[13] Arend, U., Muthig, K.-P., and Wandmacher, J. Evidence for global\nfeature superiority in menu selection by icons. Behavior and Information\nTechnology 6, (1987), 411-426.\n[14] Rogers, Y., and Oborne, D. J. Pictorial communication of abstract verbs\nin related to human-computer interaction. British Journal of\nPshychology 78, (1987), 99-112.\n[15] Stammer, R. B., George, D. A., and Carey, M. S. An Evaluation of\nAbstract and Concrete Icons for A CAD Package. In E. D. Megaw, ed.,\nContemporary ergonomics. Taylor & Francis, 1989.\n[16] Stammer, R. B., and Hoffman, J. Transfer between icon sets and ratings\nof icon concreteness and appropriatness. Proceedings of the Human\nFactors Society 35th Annual Meeting. Santa Monica, (1991).\n[17] Stotts, D. B. The usefulness of icons on the computer interface: Effect of\ngraphical abstraction and functional representation on experienced and\nnovice users. Proceedings of the Human Factors and Ergonomics\nSociety 42nd Annual Meeting. Santa Monica, (1998).\n[18] Rogers, Y. Icons at the interface: their underfulness. Interacting with\nComputers 1, (1989), 105-117.\n[19] Santa, M., Debasis, S., Satya, R. D., et al. Language independent\nicon-based interface for accessing internet. Advanced in Computing and\nCommunications 191, 3 (2011), 172-182.\n[20] Statistics, UNESCO Institue for.\nhttp://www.uis.unesco.org/literacy/Pages/adult-youth-literacy-data-viz.a\nspx.\n[21] Cooper, A., and Reimann, R. About Face 2.0, The Essentials of\nInteraction Design. Wiley Publishing, 2003.\n[22] Chipchase, J. Understanding Non-Literacy as A Barrier to Mobile Phone\nCommunication, 2005.\n[23] Indrani, M., Somani, P., Emma, B., et al. Designing mobile interfaces\nfor novie and low-literacy users. ACM Transactions on\nComputer-Human Interaction 18, 1 (2011), 2-28.\n[24] Ivatury, G. Harnessing technology to transform financial services for the\npoor. Small Enterpr. Devel. 15, 4 (2004), 25-30.\n[25] Thatcher, A., Shaik, F., and Zimmerman, C. Attitudes of semi-literate\nand literate bank account holders to the use of automatic teller machines\n(ATM). Int. J. Industrial Ergonomics 35, (2005), 15-30.\n[26] Thatcher, A., Mahlangu, S., and Zimmerman, C. Accessibility of ATMs\nfor the functionality illiterate through icon-based interfaces. Behav. Inf.\nTechnol. 25, 1 (2006), 65-81.\n[27] Sheetal, K. A., Arun, K., Amit, A. N., et al. User-generated content\ncreation and dissemination in rural areas. USC Annenberg School for\nCommunication & Journalism 6, 2 (2010), 21-37.\n[28] Frohlich, D. M., Rachovides, D., Riga, K., et al. Storybank: mobile\ndigital storytelling in a development context, Human Factors Computing\nSystems (CHI '09), (2009), 1761-1770.\n[29] Andrew, M., Gary, M., and Richard, H. Making the link - providing\nmobile media for novice communities in the developing world.\nInternational Journal of Human-Computer Studies 69, (2011), 647-657.\n[30] Peierce, C. S. Collected Papers. Harvard University Press, 1931.\n[31] Nadin, M. Interface design: a semiotic paradigm. Semiotica 69, 3/4\n(1998), 269-302.\n[32] Buchanan, R. Declaration by design: rhetoric, argument, and\ndemonstration in design practice. Design Issues 2, 1 (1985), 4-22.\n[33] Shneiderman, B. Designing the User Interface: Strategies for Effective\nHuman-Computer Interaction. Addision-Wesley, 1997.\n[34] Siau, K. Human-computer interaction: the effect of application domain\nknowledge on icon visualization. J. of Computer Information Systems 45,\n3 (2005), 53-62.\n[35] Kosslyn, S. M. Scanning visual Images: some structural imagination,\nPerception and Psychophysics, 1979.\n[36] Miller, A. Imagery in Scientific Thought. MIT Press, 1986.\n[37] Anderson, J. R. Cognitive Psychology and Its Implications, 1990.\n[38] Norman, D. Things That Make Us Smart. Addison-Wesley, 1993.\n[39] Blankenbergers, S., and Hahn, K. Effects of icon design on\nhuman-computer interaction. International Journal of Man Machine\nStudies 35, (1991), 363-377.\n[40] Isherwood, S. J., McDougall, S. J. P., and Curry, M. B. Icon\nidentification in context: the changing role of icon characteristics with\nuser experience. Human Factors: The Journal of the Human Factors and\nErgonomics Society 49, 3 (2007), 465-478.\n[41] Wang, H.-F., Hung, S.-H., and Liao, C.-C. A survey on of icon\ntaxonomy used in the interface design. 14th European conference on\nCognitive Ergonomics. London, 2007.\n[42] Lodding, K. N. Iconic interfacing. IEEE Computer Graphics and\nApplications 3, 2 (1983), 11-20.\n[43] Blattner, M. A., Sumikawa, D. A., and Greenberg, R. A. Earcons and\nicons: their structure and common design principles. Human-computer\ninteractions 4, 1 (1989), 11-40.\n[44] Purchase, H. Defining multimedia. IEEE Multimedia 5, 1 (1998), 8-15.\n[45] Lidwell, W., Holden, K., and Butler, J. Universal Principles of Design.\nRockport Publishers, 2003.\n[46] Moyes, J., and Jordan, P. W. Icon design and its effect on guessability,\nlearnability and experienced user performance. People and Computers\nVIII (1993), 49-59.\n[47] Sarah, I. Graphics and semantics: the relationship between what is seen\nand what is meant in icon design. Engin. Psychol. and Cog. Ergonomics\n(2009), 197-205.\n[48] Kim, J. H., and Lee, K. P. Cultural difference and mobile phone\ninterface design: icon recognition according to level of abstraction,\nMobileHCI'05, 2005.\n[49] Pappachan, P., and Ziefle, M. Cultural Influences on the\ncomprehensibility of icons in mobile-computer interaction. Behavior and\nInformation Technology 47, 4 (2008), 331-337.\n[50] Satchell, C., and Ziefle, M. The smart phone as globalizing icon of the\nearly 21st century.\nhttp://www.ucd.smartinternet.com.au/Documents/MobilePhone_Globali\nzing.pdf, 2010.\n[51] Ferguson, A., and Brown, W. Standard symbols - using the iso test\nmethod. In P. T. McCabe, ed., Contemporary Ergonomics. Taylor &\nFrancis, 2003."]}
- Published
- 2015
- Full Text
- View/download PDF
5. Diacylglycerol Kinase is Activated by SRC-Mediated Tyrosine phosphorylation
- Author
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GRAZIANI , ANDREA, Cutrupi S, Maffee A, Baldanzi G, Shaap D, Bussolino F., Graziani, Andrea, Cutrupi, S, Maffee, A, Baldanzi, G, Shaap, D, and Bussolino, F.
- Published
- 1997
6. Multiple Regression and Artificial Neural Network for the Prediction of Crop Pest Risks.
- Author
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Yan, Yingwei, Feng, Chen-Chieh, Wan, Maffee Peng-Hui, and Chang, Klarissa Ting-Ting
- Published
- 2015
- Full Text
- View/download PDF
7. Evaluation of the regional blood circulation of the hindbrain by dynamic computed tomography.
- Author
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Valvassori, Galdino E., Maffee, Mahmood F., Dobben, Glen D., Valvassori, G E, Maffee, M F, and Dobben, G D
- Abstract
Permanent or transient reduction of blood flow to the hindbrain is often responsible for symptoms of disequilibrium, dizziness and occasionally sensorineural hearing loss. Recent advances in CT technology and the development of continuous rapid rotational CT brain scanning now permit a practical and relatively non-invasive method for evaluation of regional brain circulation. It is the purpose of this presentation to review displays of normal CT hindbrain circulation and compare them with displays from patients with hindbrain ischemia. Dynamic CT provides a useful clinical index of brain blood circulation and can be used to detect and differentiate insufficiency due to pathology of the brain, of the artery supplying it, or of the cardiovascular system. Finally, the quantitative hemodynamic benefit from surgery of the carotid or vertebral arteries can be properly evaluated by this technique. [ABSTRACT FROM AUTHOR]
- Published
- 1981
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- View/download PDF
8. Editorial.
- Author
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Maffee, Mahmood F.
- Published
- 2000
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