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Description
Contrast agents in medical imaging can help visualize structural details, distributions of particular cell types, or local environment characteristics. Multi-modal imaging techniques have become increasingly popular for their improved sensitivity, resolution, and ability to correlate structural and functional information. This study addresses the development of dual-modality (magnetic resonance/fluorescence) and dual-functional (thermometry/detection) nanoprobes for enhanced tissue imaging.
ContributorsHemzacek, Katherine Leigh (Author) / Kodibagkar, Vikram (Thesis director) / Stabenfeldt, Sarah (Committee member) / Barrett, The Honors College (Contributor) / Harrington Bioengineering Program (Contributor)
Created2015-05
Description
This study examined how second-generation Mexican American students talked about negotiating bilingualism in Arizona, where Spanish is associated with a social group considered to be problematic in the local anti-immigrant context. Using tools and approaches from narrative analysis, I analyzed testimonies collected through interviewing, a method within the field of sociolinguistics to elicit qualitative data, to understand how the narratives reveal insight into the social processes and ideological structures that are present in any given context. I modeled my study after Anna de Fina (2003) and her analysis of immigrant discourse. Anna de Fina (2003) along with Koven (2001), and Bamberg (2011) all devise frameworks in which narratives emerge through interactional contexts during interviews where the interviewee engages in constructing not only a narrative along with the interview but also the representation of his/her identity. Contributing to this literature, my analysis demonstrates the role of language ideologies in narrative constructions of identity, the fluid nature of identity performances, and the power of autobiographical storytelling to challenge or contest dominant discourses about a language and its speakers. Findings show that participants began to value their own bilingualism more after entering into dominant culture, where their negotiation of identity stood on intermediary ground and was conceived as a process, belonging was found with other bilinguals, and bilingualism was viewed as a resource capable of providing innovative ways of conceiving of belonging and identity.
ContributorsGarcia, Jorge Jesus (Author) / Warriner, Doris (Thesis director) / Adams, Karen (Committee member) / Barrett, The Honors College (Contributor) / Department of English (Contributor) / School of Historical, Philosophical and Religious Studies (Contributor)
Created2015-05
Description
The amount of connection one has, whether it is digitally or in-person can have an overall affect on a person's business, their being, and their interaction- these interactions are considered social capital. The main premise of social capital is that social networks have value. This means that the collective value of which people know will affect their inclination to do things for each other. In this case, social capital is not about the warm feeling one gets when someone does something for them, it refers to the information flow and mutual aid that bonds people who are interested in the same things. With technology at an all time high, these connections are made infinitely possible through social media. This project uses Cuisine of Arizona, a regional restaurant guide, to exemplify how strategies of social capital can be used via social media in order to build trustworthy and valuable connections and build a larger audience for the brand. Research on the benefits of Facebook, Instagram, and Twitter for social media marketing was conducted and was then adapted to benefit the Cuisine of Arizona restaurant guide. A social media calendar was implemented for organizational purposes and the social media sites were updated to keep their look current. Research on how business websites keep their audience was conducted as well. The current Cuisine of Arizona website was outdated, but still useful. A mock-up website was created on Wix.com to give the website a new look and bring in new interactive features, like the online flipbook version of the restaurant guide and a dynamic homepage, but still gave the audience the same useful information as the old site. The mock-up website was also mobile optimized for use on smartphones and tablets. The three social media methods were chosen because of their capabilities to interact with one another. For example, Instagram posts can be shared on both Facebook and Twitter, resulting in more unique viewers for each site. If the website's content is shared on any of these sites, it will build a larger audience for the Cuisine of Arizona website as well. If used carefully, the proposed social media plan will draw a larger audience to the entire Cuisine of Arizona brand and in turn, build trust and credibility among its audience.
ContributorsGuillen, Alejandra (Author) / Gilpin, Dawn (Thesis director) / Bovio, Sonia (Committee member) / Barrett, The Honors College (Contributor) / Department of English (Contributor) / Walter Cronkite School of Journalism and Mass Communication (Contributor)
Created2015-05
Description
The depiction of mental illness, schizophrenia in particular, within film is a unique phenomenon that film directors have decided to undertake more so in the last 20 years than ever before in cinematic history (Wedding & Niemic, 2014; Robinson, 2004; Gabbard & Gabbard, 1999; Wahl, 1997). Countless filmmakers have taken on the challenge of depicting this complex, yet degenerative condition that entails auditory and visual hallucinations, disorganized thought and speech, and delusions. Its portrayals are usually exaggerated and romanticized, and convey a sense of separate "Otherness" with those who have a mental disorder. And while filmmakers try to encapsulate the schizophrenic experience, it is not without psychiatric error and regarding the person who has schizophrenia as a spectacle. This unfair and ostracizing view of people who have schizophrenia is fueled by films like A Beautiful Mind and The Shining where the film either creates impossibly high standards for schizophrenics to perform at, or the film paints the character as a violent savage. In either case, the end result is the marking and, usually, denouncement of the schizophrenic for their illness. What filmmakers tend to overlook is how much the public learns from the cinematic portrayals of these disorders, and that their films are contributing to an overarching issue of public presumptions of actual schizophrenia and how it is perceived. While the Hollywood approach offers a depiction that is usually more tangible and enjoyable for masses of audiences, spectators should recognize that these are artistic interpretations that take liberties in their depictions of schizophrenia. Viewing these films with an objective mindset to better understand the inner workings of schizophrenia is absolutely crucial in arriving anything close to the truth behind this mental illness that has been demonized long enough.
ContributorsFraga, Nicholas Andrew (Author) / Miller, April (Thesis director) / Cavanaugh Toft, Carolyn (Committee member) / Barrett, The Honors College (Contributor) / Department of Psychology (Contributor) / Department of English (Contributor)
Created2015-05
Description
The Undoing Project is an ongoing educational feminist YouTube channel that serves as an introduction to feminism and feminist theory. The objective for this project is to present feminist theory and feminist ideology in an accessible and entertaining way. Through this project I sought to accomplish three goals: to challenge the negative image of feminism, bridge the gap between the language of academia and the public, and to acknowledge and unlearn ingrained prejudices. The videos focus on theory, history, legislation, current events, and pop culture. The initial project consists of ten videos addressing the feminist wave models, a brief history of the feminist movement, and discussions of concepts like hegemony, intersectionality, masculinity, femininity, and race.
ContributorsBuchholtz, Kaylee Marie (Author) / Brian, Jennifer (Thesis director) / Grzanka, Patrick (Committee member) / Brouwer, Dan (Committee member) / Barrett, The Honors College (Contributor) / College of Public Service and Community Solutions (Contributor) / School of Social Transformation (Contributor) / Department of English (Contributor)
Created2015-05
Description
Along with the number of technologies that have been introduced over a few years ago, gesture-based human-computer interactions are becoming the new phase in encompassing the creativity and abilities for users to communicate and interact with devices. Because of how the nature of defining free-space gestures influence user's preference and the length of usability of gesture-driven devices, defined low-stress and intuitive gestures for users to interact with gesture recognition systems are necessary to consider. To measure stress, a Galvanic Skin Response instrument was used as a primary indicator, which provided evidence of the relationship between stress and intuitive gestures, as well as user preferences towards certain tasks and gestures during performance. Fifteen participants engaged in creating and performing their own gestures for specified tasks that would be required during the use of free-space gesture-driven devices. The tasks include "activation of the display," scroll, page, selection, undo, and "return to main menu." They were also asked to repeat their gestures for around ten seconds each, which would give them time and further insight of how their gestures would be appropriate or not for them and any given task. Surveys were given at different time to the users: one after they had defined their gestures and another after they had repeated their gestures. In the surveys, they ranked their gestures based on comfort, intuition, and the ease of communication. Out of those user-ranked gestures, health-efficient gestures, given that the participants' rankings were based on comfort and intuition, were chosen in regards to the highest ranked gestures.
ContributorsLam, Christine (Author) / Walker, Erin (Thesis director) / Danielescu, Andreea (Committee member) / Barrett, The Honors College (Contributor) / Ira A. Fulton School of Engineering (Contributor) / School of Arts, Media and Engineering (Contributor) / Department of English (Contributor) / Computing and Informatics Program (Contributor)
Created2015-05
Description
In the United States, the past thirty years have brought with them a substantial rise in income and wealth inequality rates. Inequality in the U.S. has risen to levels not seen for nearly a century and shows no signs of decreasing in the near future. Conversely, Canada has experienced lower levels of inequality during this same period despite many similarities and ties to the U.S. Therefore, the purpose of this paper will be to examine the extent to which these two countries differ in this area and identify some of the more salient factors that have contributed to this divergence, including tax policies, unionization rates, and financial industry regulation, as well as the deeper, more fundamental elements of each nation's identity.
ContributorsPetrusek, Nicholas Anthony (Author) / Puleo, Thomas (Thesis director) / Sivak, Henry (Committee member) / Thomas, George (Committee member) / Barrett, The Honors College (Contributor) / School of Politics and Global Studies (Contributor) / Department of English (Contributor)
Created2015-05
Description
Medical Humanities is a growing field and much scholarship focuses on the promotion of empathy in professionals. I argue incorporation of literature is crucial as it develops critical thinking skills that guard against the dangers of collective thought. A Foucauldian analysis of three literary works, my own creative non-fiction short story, William Carlos Williams' "The Use of Force," and Alexander Solzhenitsyn's Cancer Ward offer the student perspective, the doctor perspective and the institutional perspective, respectively, and subversive undertones offer an example of the analytical thought developed in humanities education by challenging assumptions and elucidating implicit power relations in the medical institution.
ContributorsBlock, Courtney Samantha (Author) / Lussier, Mark (Thesis director) / Fox, Cora (Committee member) / Barrett, The Honors College (Contributor) / Department of English (Contributor)
Created2015-05
Description
Abstract: Purpose: The dose-dependent effects of isoflurane anesthesia on insulin inhibition and insulin resistance were compared in rats. Methods: Three rats were entered into the procedure with each rat being subjected to 3 different doses of steady state concentrations of isoflurane (1.75%, 2.0%, and 2.50%). A surgical plane of anesthesia was induced by continuous infusion of isoflurane via an induction box at 4.0% isoflurane and when anesthesia was achieved the infusion of anesthesia was lowered to the steady state concentrations of isoflurane. Plasma glucose concentrations were measured every 10 minutes until two or three consistent peak values were observed. After assurance of reaching peak values sub-cutaneous insulin (0.75 units/kg) was injected between the scapulas. Following the insulin injection plasma glucose concentrations were obtained every 10 minutes via pinprick until peak minimal glucose values were reached. If the plasma glucose of any animal reached a level approximately 50 mg/dL, subcutaneous glucose was injected (2.0 grams/kg) to prevent adverse effects of hypoglycemia. Results: For absolute plasma glucose post-anesthetic values a comparison of multiple mean glucose concentrations (single factor ANOVA) yielded p=8.06 x 10-6. A post-hoc analysis revealed significant p values between 3 pairs of means: 1.75%/2.0%= 0.004; 1.75%/2.5%= 0.03; 2.0%/2.5%= 0.02 . For normalized plasma glucose values post-anesthetic a comparison of multiple means (ANOVA) yielded a p value of 0.03. Post-hoc analysis indicated that the peak response was at 2.0% with significant difference between 1.75%/2.0% =0.03 and 2.0%/2.5%=0.02. There was no significance between glucose values 1.75%/2.50%=0.68. For plasma glucose values post-insulin both absolute and normalized a mean comparison analysis (ANOVA) concluded that during post insulin the data was not statistically significant as p=0.68. Conclusions: When absolute plasma glucose concentrations were normalized by the baseline taken at conscious state the dose-dependency disappeared and concluded the largest change in plasma glucose at 2.0%. Although the data post-insulin injection was not statistically significant it can be concluded that there was normal glucose uptake and that there was no impaired insulin action on the skeletal muscle.
ContributorsBrown, Cole Truman (Author) / Herman, Richard (Thesis director) / Towe, Bruce (Committee member) / Barrett, The Honors College (Contributor) / Harrington Bioengineering Program (Contributor)
Created2015-05
Description
Classroom communication is imperative in the creation of a classroom environment that encourages participation and inter-student relationships. Several factors that may influence these variables, such as female-to-male sex ratio, have not been studied in depth. This study examined the impact of class size, female-to-male ratio, and teaching method on individual participation and class interactions. Class size was negatively related to individual verbal participation, classroom connection, classroom animation, and classroom intimacy and positively related to classroom nonimmediacy. Female-to-male sex ratio was positively associated with classroom connection, animation, and intimacy. Class activities were positively related to individual verbal participation, classroom connection, classroom animation, and classroom intimacy and positively related to classroom nonimmediacy. The use of videos in the classroom was positively associated with classroom animation and intimacy while other technologies were not significantly correlated with any variables. These findings suggest that the ideal classroom should have a small number of students and utilize interactive class activities. Furthermore, women should be encouraged to take classes that are traditionally dominated by men and future research should focus on how gender is connected to the variables in this study.
ContributorsHanks, April Nicole (Author) / Guerrero, Laura (Thesis director) / Martin, Judith (Committee member) / Barrett, The Honors College (Contributor) / Department of English (Contributor) / Hugh Downs School of Human Communication (Contributor)
Created2015-05