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The impact of working memory, tags, and tag clouds, on search of websites

Description

Although there are many forms of organization on the Web, one of the most prominent ways to organize web content and websites are tags. Tags are keywords or terms that are assigned to a specific piece of content in order to help users understand the common relationships between pieces of…

Although there are many forms of organization on the Web, one of the most prominent ways to organize web content and websites are tags. Tags are keywords or terms that are assigned to a specific piece of content in order to help users understand the common relationships between pieces of content. Tags can either be assigned by an algorithm, the author, or the community. These tags can also be organized into tag clouds, which are visual representations of the structure and organization contained implicitly within these tags. Importantly, little is known on how we use these different tagging structures to understand the content and structure of a given site. This project examines 2 different characteristics of tagging structures: font size and spatial orientation. In order to examine how these different characteristics might interact with individual differences in attentional control, a measure of working memory capacity (WMC) was included. The results showed that spatial relationships affect how well users understand the structure of a website. WMC was not shown to have any significant effect; neither was varying the font size. These results should better inform how tags and tag clouds are used on the Web, and also provide an estimation of what properties to include when designing and implementing a tag cloud on a website.

ContributorsBanas, Steven (Author) / Sanchez, Christopher A (Thesis advisor) / Branaghan, Russell (Committee member) / Cooke, Nancy J. (Committee member) / Arizona State University (Publisher)

Created2011

The power of the virtual pen and the development of college freshmen: exploring the impact of university website messaging on the situated identities of first-year college students

Description

As enrollment in postsecondary education increases, colleges and universities increasingly rely heavily on the use of the Internet as a means of communication with their students. Upon students' admission, institutional webpage messaging shifts to messages about students' new affiliation with the institution in their situated identity - a college student.…

As enrollment in postsecondary education increases, colleges and universities increasingly rely heavily on the use of the Internet as a means of communication with their students. Upon students' admission, institutional webpage messaging shifts to messages about students' new affiliation with the institution in their situated identity - a college student. Unlike continuing-generation students, first-generation college students are not institutional legacies and must learn how and what it means to be a college student through other means. This study examined the situated identity construction and website experiences of 23 first-year first- and continuing-generation college freshmen attending a summer transition program at Western University (WU). Using a multifaceted approach, this study analyzed how first-generation students made meaning of and used institutional website messaging as they constructed their college student identities. The following steps were used to collect data: a questionnaire, eight observations, a focus group with first-generation participants, one-on-one interviews with two focus group participants, and three interviews with WU staff members responsible for their college or unit webpages for first-year students. Findings utilizing critical discourse analysis revealed answers to several guiding questions focusing on situated identities construction and enactment; multiple and salient identities are at work; the Discourses and impact of WU webpages on first-generation students; how first-generation students experience, make meaning of, and use WU website messaging as they construct their situated identity; and feelings of belonging, marginalization, and mattering experienced by first-generation students through website messaging. Results highlighted differences between the first-generation and continuing-generation students' perception and enactment of the situated identity. Although first-generation students used the website as a tool, they used different ways to gain access into the WU Discourse. Both students and staff members enacted multiple salient identities as they enacted their situated identities, and the multiple salient identities of the WU website designers were highly influential in the website Discourse. Findings have implications for WU institutional practices that could facilitate earlier and more simplified access to the WU Discourse, and findings generated a new model of situated identity construction in Discourse.

ContributorsSumner, Carol A (Author) / Rund, James A. (Thesis advisor) / Ewing, Kris (Thesis advisor) / Gee, James P. (Committee member) / Arizona State University (Publisher)

Created2011

Leonard Hayflick (1928- )

Description

Leonard Hayflick studied the processes by which cells age during the twentieth and twenty-first centuries in the United States. In 1961 at the Wistar Institute in the US, Hayflick researched a phenomenon later called the Hayflick Limit, or the claim that normal human cells can only divide forty to sixty…

Leonard Hayflick studied the processes by which cells age during the twentieth and twenty-first centuries in the United States. In 1961 at the Wistar Institute in the US, Hayflick researched a phenomenon later called the Hayflick Limit, or the claim that normal human cells can only divide forty to sixty times before they cannot divide any further. Researchers later found that the cause of the Hayflick Limit is the shortening of telomeres, or portions of DNA at the ends of chromosomes that slowly degrade as cells replicate. Hayflick used his research on normal embryonic cells to develop a vaccine for polio, and from HayflickÕs published directions, scientists developed vaccines for rubella, rabies, adenovirus, measles, chickenpox and shingles.

ContributorsBartlett, Zane (Author) / Turriziani Colonna, Federica (Editor) / Elliott, Steve (Editor) / Arizona State University. School of Life Sciences. Center for Biology and Society. Embryo Project Encyclopedia. (Publisher) / Arizona Board of Regents (Publisher)

Created2014-07-20

Thomas Hunt Morgan (1866-1945)

Description

Although best known for his work with the fruit fly, for which he earned a Nobel Prize and the title "The Father of Genetics," Thomas Hunt Morgan's contributions to biology reach far beyond genetics. His research explored questions in embryology, regeneration, evolution, and heredity, using a variety of approaches.

ContributorsSunderland, Mary E. (Author) / Arizona State University. School of Life Sciences. Center for Biology and Society. Embryo Project Encyclopedia. (Publisher) / Arizona Board of Regents (Publisher)

Created2007-09-25