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- All Subjects: competition
- Creators: Alvarez, Roberto L
Description
In a 2004 paper, John Nagy raised the possibility of the existence of a hypertumor \emph{i.e.}, a focus of aggressively reproducing parenchyma cells that invade part or all of a tumor. His model used a system of nonlinear ordinary differential equations to find a suitable set of conditions for which these hypertumors exist. Here that model is expanded by transforming it into a system of nonlinear partial differential equations with diffusion, advection, and a free boundary condition to represent a radially symmetric tumor growth. Two strains of parenchymal cells are incorporated; one forming almost the entirety of the tumor while the much more aggressive strain
appears in a smaller region inside of the tumor. Simulations show that if the aggressive strain focuses its efforts on proliferating and does not contribute to angiogenesis signaling when in a hypoxic state, a hypertumor will form. More importantly, this resultant aggressive tumor is paradoxically prone to extinction and hypothesize is the cause of necrosis in many vascularized tumors.
appears in a smaller region inside of the tumor. Simulations show that if the aggressive strain focuses its efforts on proliferating and does not contribute to angiogenesis signaling when in a hypoxic state, a hypertumor will form. More importantly, this resultant aggressive tumor is paradoxically prone to extinction and hypothesize is the cause of necrosis in many vascularized tumors.
ContributorsAlvarez, Roberto L (Author) / Milner, Fabio A (Thesis advisor) / Nagy, John D. (Committee member) / Kuang, Yang (Committee member) / Thieme, Horst (Committee member) / Mahalov, Alex (Committee member) / Smith, Hal (Committee member) / Arizona State University (Publisher)
Created2014
Description
In competitive Taekwondo, Electronic Body Protectors (EBPs) are used to register hits made by players during sparring. EBPs are comprised of three main components: chest guard, foot sock, and headgear. This equipment interacts with each other through the use of magnets, electric sensors, transmitters, and a receiver. The receiver is connected to a computer programmed with software to process signals from the transmitter and determine whether or not a competitor scored a point. The current design of EBPs, however, have numerous shortcomings, including sensing false positives, failing to register hits, costing too much, and relying on human judgment. This thesis will thoroughly delineate the operation of the current EBPs used and discuss research performed in order to eliminate these weaknesses.
ContributorsSpell, Valerie Anne (Author) / Kozicki, Michael (Thesis director) / Kitchen, Jennifer (Committee member) / Electrical Engineering Program (Contributor) / Barrett, The Honors College (Contributor)
Created2016-05
Description
Theme parks have been expanding in size and scope since their inception decades past, a trend that the academic world has begun to notice. There is a wide variety of academic literature on tourism, but not nearly as much on theme parks. As a unique entertainment concept, theme parks have yet to be studied as extensively as other tourism settings. The purpose of this study is to expand on the current academic research concerning theme parks. The researcher applied directed content analysis to dozens of mass media articles in an attempt to identify strategies currently in use in the theme park industry, thereby filling a gap in academic research on the practical application of strategy in the theme park industry. The content analysis consisted of 87 articles from 34 United States-based sources ranging in year from 1985 to 2013, including both large- and small-scale publications, in regards to circulation, spanning the entire country. At the conclusion of the data collection process, the researcher recorded 225 statements demonstrating eight distinct strategies historically present in the theme park industry. The statements from the articles were extracted, analyzed and categorized as discussed below. Those strategies fit into the following eight categories: (1) value, (2) uniqueness, (3) niche, (4) innovation, (5) variety, (6) quality, (7) currency, and (8) convenience. Results from this study introduced two new key strategies being applied in the theme park industry that had not been previously included in the academic literature. The first new strategy discovered was currency. The strategy of providing something current means the theme park attempted to give its guests experiences that were culturally relevant at that time and modern in the theme itself, like creating a ride from a new movie. The second new strategy was convenience, in which case the theme park attempted to make its experiences more accessible for a single member in a party, or the entire group. Both of these new strategies appeared frequently, often more than the six strategies originally identified in the academic literature review. As theme parks continue to grow and diversify in the United States and around the world, it is important for professionals in tourism and business to understand the industry's progression. By combining previous knowledge and adding new research, this study has provided a foundation for future research and analysis on the dynamics of the theme park industry on a national and international scale.
ContributorsLillestol, Tayllor Paige (Author) / Timothy, Dallen (Thesis director) / Goodman, Rebekka (Committee member) / College of Public Programs (Contributor) / Barrett, The Honors College (Contributor) / Walter Cronkite School of Journalism and Mass Communication (Contributor)
Created2014-05