Matching Items (359)
Filtering by
- Resource Type: Text
Description
The properties of materials depend heavily on the spatial distribution and connectivity of their constituent parts. This applies equally to materials such as diamond and glasses as it does to biomolecules that are the product of billions of years of evolution. In science, insight is often gained through simple models with characteristics that are the result of the few features that have purposely been retained. Common to all research within in this thesis is the use of network-based models to describe the properties of materials. This work begins with the description of a technique for decoupling boundary effects from intrinsic properties of nanomaterials that maps the atomic distribution of nanomaterials of diverse shape and size but common atomic geometry onto a universal curve. This is followed by an investigation of correlated density fluctuations in the large length scale limit in amorphous materials through the analysis of large continuous random network models. The difficulty of estimating this limit from finite models is overcome by the development of a technique that uses the variance in the number of atoms in finite subregions to perform the extrapolation to large length scales. The technique is applied to models of amorphous silicon and vitreous silica and compared with results from recent experiments. The latter part this work applies network-based models to biological systems. The first application models force-induced protein unfolding as crack propagation on a constraint network consisting of interactions such as hydrogen bonds that cross-link and stabilize a folded polypeptide chain. Unfolding pathways generated by the model are compared with molecular dynamics simulation and experiment for a diverse set of proteins, demonstrating that the model is able to capture not only native state behavior but also partially unfolded intermediates far from the native state. This study concludes with the extension of the latter model in the development of an efficient algorithm for predicting protein structure through the flexible fitting of atomic models to low-resolution cryo-electron microscopy data. By optimizing the fit to synthetic data through directed sampling and context-dependent constraint removal, predictions are made with accuracies within the expected variability of the native state.
ContributorsDe Graff, Adam (Author) / Thorpe, Michael F. (Thesis advisor) / Ghirlanda, Giovanna (Committee member) / Matyushov, Dmitry (Committee member) / Ozkan, Sefika B. (Committee member) / Treacy, Michael M. J. (Committee member) / Arizona State University (Publisher)
Created2011
Description
Zeolites are a class of microporous materials that are immensely useful as molecular sieves and catalysts. While there exist millions of hypothetical zeolite topologies, only 206 have been recognized to exist in nature, and the question remains: What distinguishes known zeolite topologies from their hypothetical counterparts? It has been found that all 206 of the known zeolites can be represented as networks of rigid perfect tetrahedra that hinge freely at the connected corners. The range of configurations over which the corresponding geometric constraints can be met has been termed the "flexibility window". Only a small percentage of hypothetical types exhibit a flexibility window, and it is thus proposed that this simple geometric property, the existence of a flexibility window, provides a reliable benchmark for distinguishing potentially realizable hypothetical structures from their infeasible counterparts. As a first approximation of the behavior of real zeolite materials, the flexibility window provides additional useful insights into structure and composition. In this thesis, various methods for locating and exploring the flexibility window are discussed. Also examined is the assumption that the tetrahedral corners are force-free. This is a reasonable approximation in silicates for Si-O-Si angles above ~135°. However, the approximation is poor for germanates, where Ge-O-Ge angles are constrained to the range ~120°-145°. Lastly, a class of interesting low-density hypothetical zeolites is evaluated based on the feasibility criteria introduced.
ContributorsDawson, Colby (Author) / Treacy, Michael M. J. (Thesis advisor) / O'Keeffe, Michael (Committee member) / Thorpe, Michael F. (Committee member) / Rez, Peter (Committee member) / Bennett, Peter (Committee member) / Arizona State University (Publisher)
Created2013
Description
My thesis, titled Female Agency in the Canterbury Tales and Telling Tales, compares Geoffrey Chaucer’s fourteenth century work and Patience Agbabi’s modern adaptation in regards to their portrayal of female agency. While each work contained a whole selection of tales, I focus on four tales, which were The Miller’s Tale, The Clerk’s Tale, The Physician’s Tale, and The Wife of Bath’s Tale. I also include relevant historical information to support and assist in the analysis of the literary texts, and secondary sources were also used supplementarily to enhance the analysis. I argue that female agency is irrationally believed to be dangerous, and the consequent attempts at protection manifest as limitations, which are themselves damaging. The paper is divided into two main sections, which are themselves separated into three smaller categories. The first of the two main sections concerns what actions and options are available to women influenced by a distinction of gender; this section is divided into female gender ideals, marriage, and occupation. The second of the two main sections addresses the entities or individuals enacting the limitations upon female agency, and its three subsections are society, men, and women. I ultimately conclude that not only is it irrational to believe that female agency is dangerous, but also that making gender-based judgment on the capacity of a group of people or an individual is inherently flawed.
ContributorsStemmons, Zaydee (Author) / Newhauser, Richard G (Thesis director) / Maring, Heather (Committee member) / Historical, Philosophical & Religious Studies (Contributor) / Department of English (Contributor) / Historical, Philosophical & Religious Studies, Sch (Contributor) / Barrett, The Honors College (Contributor)
Created2021-05
Description
The following study is an attempt to analyze the idea of the abject through the grotesque representation of the female body in contemporary visual art. The focus of the paper will remain within the scheme of the modern Western ideology of physical female beauty, social affirmations, and restraints. My hypothesis is that the grotesque imagery of the female body in modern art redefines beauty and liberates the female subject by turning the gaze upon itself. The proposition of this study emerges from Julia Kristeva’s theory of the abject as it applies to the viewer and the viewed. There is a distinct relationship between grotesque ideas and the female body as it is viewed in the late 20th and 21st centuries. Visual imagery has become increasingly bold in its presentation for good or for bad. I chose the selected artists because they present dark, often socially ‘ugly’ depictions of the female body in honest, straightforward ways. I question why the grotesque is not popularly recognized on the ‘beauty scale’, yet our society craves this kind of imagery. The purpose of this study is to identify and explain abjection within depictions of the grotesque. This exploration of the female figure and its portrayal through the eyes of modern sculptors, painters, and designers aims to highlight that 20th and 21st century aesthetics have moved towards themes of grotesqueness in beauty, amidst cultural objectification and materialization. These themes perhaps present Western culture’s underlying physical insecurities and self-loathing.
ContributorsWillson, Ariane Lolita (Author) / Dove-Viebahn, Aviva (Thesis director) / Miller, April (Committee member) / Barrett, The Honors College (Contributor) / Economics Program in CLAS (Contributor) / Department of English (Contributor)
Created2015-05
Description
The video-on-demand marketplace in film has usually been reserved for independent distributors like Magnolia Pictures and IFC Films, who cannot secure widespread theatrical exhibition like the major studios do (which include Sony, 20th Century Fox, Warner Bros., and Disney, amongst other), therefore opting for the in-home launch of films through on-demand services. These include cable providers, iTunes, Google Play, and even Netflix and Amazon Instant Video. A drastic change to this model came with the launch of The Interview exclusively on VOD platforms and in independent cinemas, challenging the established norm in the industry of major studios releasing their films with major exhibitors like AMC and Regal. Sony's controversial film provided a breakthrough in the VOD marketplace as it became the highest-grossing film ever released on the platform. There remains mystery and secrecy in the VOD realm, though, as independent distributors fail to provide accountable data on their releases and rarely measure financial successes in public. Whereas theatrical box office are available every weekend, VOD numbers do not have to be disclosed at any time, further driving ambiguity behind just how successful the technology must be when the films are often low-key, character-driven efforts rather than the blockbusters that pervade the theatrical landscape around the world. This paper explores the ramifications of video-on-demand on the theatrical marketplace, and attempts to counter the recent claim of The Interview being the game-changing success for VOD.
ContributorsForthun, Eric Matthew (Author) / Sandler, Kevin (Thesis director) / Green, Michael (Committee member) / Barrett, The Honors College (Contributor) / School of Historical, Philosophical and Religious Studies (Contributor) / Department of English (Contributor)
Created2015-05
Description
This thesis examines contemporary cinematic adaptations of the Ovidian Pygmalion story. The films Blade Runner (1981), Lars and the Real Girl (2007), Ruby Sparks (2012), and Her (2013) are analyzed. This thesis seeks to understand why this particular myth is so resonant in today's popular culture and what this relevance reveals about modern society. The roles of female subjugation, sexualization, and relationship with technology will be major areas of concern. Research includes film criticism, Ovidian scholarship, and new advances in computer technology.
ContributorsStory, Sara Katherine (Author) / Corse, Taylor (Thesis director) / Ellis, Lawrence (Committee member) / Barrett, The Honors College (Contributor) / Department of English (Contributor)
Created2015-05
Description
The relationship between mental illness (or "madness," as Socrates labeled psychosis, as well as a wide range of states of thought and emotion [Jamison, 1993]) and creativity has been noted since before the times of Socrates. The questions that this noted relationship pose are significant. Famous authors, poets, artists, and musicians who suffered from various forms of mental illness are littered throughout history. Edgar Allen Poe himself noted, "Men have called me mad but the question is not yet settled, whether madness is or is not the loftiest intelligence \u2014 whether much that is glorious \u2014 whether all that is profound \u2014 does not spring from disease of thought \u2014 from moods of mind exalted at the expense of the general intellect." Only in recent years have researchers begun to classify these disorders of past artists using modern diagnostic measures. While the concept of a relationship between creativity and mental illness is fascinating in and of itself, understanding the implications of a possible correlation is essential to the care and treatment that individuals with the diseases are given. If, indeed, creativity is linked with affective disorders, what does this mean for the treatment of these disorders? By eliminating the symptoms of mood disorders, are we also inadvertently eliminating creativity? It is important to acknowledge the possibility that mental illnesses like bipolar disorder include benefits to those afflicted. How can we treat the negative symptoms of mood disorders while enhancing the positive symptoms? In order to conclude that there is a link between creativity and mood disorders, it is first necessary to reexamine and reestablish the processes by which mood disorders are diagnosed. Although currently diagnosed on a categorical scale \u2014 meaning the patient is diagnosed under the black-and-white category of manic or depressive at a given point in time \u2014 this paper will argue that mood disorders can be better diagnosed and treated on a continuum of mood states. Furthermore, by viewing mood disorders on such a continuum, writers like Anne Sexton and Sylvia Plath, whose diagnoses are debated by historians and professionals, can be established as having a diagnosable affective disorder, since both experienced symptoms of depression and mania, if not in the precise timing and manner proscribed by the Diagnostic Manual. Finally, by determining these writers' diagnoses, a relationship can be explored between their creative states and their mood states.
ContributorsKugler, Danica Eileen (Author) / Montesano, Mark (Thesis director) / Holbo, Christine (Committee member) / Barrett, The Honors College (Contributor) / College of Letters and Sciences (Contributor) / Department of Psychology (Contributor) / Department of English (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