# Alumni Dissertations and Theses

• ### Gold and Zinc Oxide Nanoparticle Coated Peptide Nanotubes Fabrication and Their Electrical Transport Properties Study

Author:
Luona Anjia
Year of Dissertation:
2012
Program:
Chemistry
Hiroshi Matsui
Abstract:

There is a growing interest in attempts in using biomolecular as the 1D nanotube templates to grow inorganic nanoparticles (NPs) in controlled morphology and structure. One of the research motivations for this combination is to take advantage of the catalytic activity for the room-temperature material growth and the ability of self-assembly into controlled structures on a large scale. One approach to fabricate such nanotube is by using a glycine-based peptide nanotube as template, and on template sidewall immobilizing biomineralizing peptide, which can selectively bind to the target metal/semiconductor precursor and mediate the formation of the inorganic material on templates incorporating these peptides. By optimizing the experiment conditions, we successfully fabricated high yield of nanotubes with full coverage of high-density monodispersed Au and ZnO NPs coating. Using drop casting technique, we built electronic device with these nanotubes and found very interesting electrical transport properties: the temperature-dependent current-voltage characteristic of Au NPs nanotube; and the negative differential resistance property (current decreases with increasing bias voltage) of ZnO NPs coated nanotube. These results are of great impact on the future development of bio-nanoelectronic devices. Besides, a new biomimetic approach for one-pod synthesis of ZnO nanotube at neutral pH and room temperature is introduced; by self-assembling peptides which possess the catalytic mineralization function for the specific oxide metal, ZnO nanotube can be grown as the peptides are simultaneously assembled into a rod structure and template ZnO growth in gels formed by the peptides and Zn precursors. Traditionally, biomineralizing peptides are coated on 1D templates and then grow ZnO at room temperature, however this new method allows one to grow ZnO nanotubes in one step without using 1D templates since the Zn-mineralizing peptide itself can be assembled into the 1D structure.

• ### The Actor and the Playwright: Adaptation on the Early Eighteenth-Century, English Stage

Author:
Ellen Anthony-Moore
Year of Dissertation:
2011
Program:
Theatre
Judith Milhous
Abstract:

Abstract The Actor and the Playwright: Play Adaptation on the Early Eighteenth-Century, English Stage By Ellen Anthony-Moore Advisor: Prof. Judith Milhous This dissertation examines the ways in which classical, neoclassical and Renaissance plays were adapted and staged on the early eighteenth-century, London stage. The plays that became box office successes were generally the ones that best displayed the talents and attributes of popular performers. By understanding the lives and careers of the greatest actors of this generation, and their role in the commercial theatre, we can better understand why the now canonized plays of ancient Greece, France, or the Elizabethan period were modified in ways that most modern scholars find puzzling. By the beginning of the eighteenth century in England, actors and actresses were becoming public personalities in an unprecedented way. From the time of Thomas Betterton's death in 1709, to the end of the triumvirate management of Drury Lane by Colley Cibber, Robert Wilks and Barton Booth in 1727, there were a handful of actors who can lay claim to being the most well known and respected performers of this generation. In chapter one, I outline what is known about eighteenth-century acting methods and techniques as well as the lines of certain key actors. Chapters two and three explore the genres of tragedy and historical tragedy, emphasizing the importance of the celebrity actress and the recent vogue for she-tragedy. Chapter four is centrally concerned with trends in comedy and farce and the preoccupation with the misadventures of young rakes, fops, cheats and the like. This dissertation ultimately concludes that by looking at the way contemporary authors adapted the most prominent playwrights of previous generations, we can better understand the theatre of the eighteenth-century. Ultimately, the process of play adaptation was one that was highly influenced by the demands of a commercial, celebrity centered theatre rather than by literary ideals or political ideology.

• ### Forms of Generic Common Knowledge

Author:
Evangelia Antonakos
Year of Dissertation:
2013
Program:
Mathematics
Sergei Artemov
Abstract:

In multi-agent epistemic logics, common knowledge has been a central consideration of study. A generic common knowledge (G.C.K.) system is one that yields iterated knowledge I(φ): ‘any agent knows that any agent knows that any agent knows…φ’ for any number of iterations. Generic common knowledge yields iterated knowledge, G.C.K.(φ)→I(φ), but is not necessarily logically equivalent to it. This contrasts with the most prevalent formulation of common knowledge C as equivalent to iterated knowledge. A spectrum of systems may satisfy the G.C.K. condition, of which C is just one. It has been shown that in the usual epistemic scenarios, G.C.K. can replace conventional common knowledge and Artemov has noted that such standard sources of common knowledge as public announcements of atomic sentences generally yield G.C.K. rather than C.

In this dissertation we study mathematical properties of generic common knowledge and compare them to the traditional common knowledge notion. In particular, we contrast the modal G.C.K. logics of McCarthy (e.g. M4) and Artemov (e.g. S4nJ) with C-systems (e.g. S4nC) and present a joint C/G.C.K. implicit knowledge logic S4nCJ as a conservative extension of both. We show that in standard epistemic scenarios in which common knowledge of certain premises is assumed, whose conclusion does not concern common knowledge (such as Muddy Children, Wise Men, Unfaithful Wives, etc.), a lighter G.C.K. can be used instead of the traditional, more complicated, common knowledge. We then present the first fully explicit G.C.K. system LPn(LP). This justification logic realizes the corresponding modal system S4nJ so that G.C.K., along with individual knowledge modalities, can always be made explicit.

• ### The Foundations of American Regional Theatre

Author:
Tomoko Aono
Year of Dissertation:
2010
Program:
Theatre
Judith Milhous
Abstract:

Since the early 1960s, regional theatre has grown into one of the major sectors of contemporary American theatre culture. Why have so many regional theatres existed for years? Why have they attracted such a large audience? Partially through a survey of the regional theatre sector as a whole, and mainly through case studies of the four individual theatres, this study aims to answer these questions. American regional theatres are unique in that they offer more than the artistic merit and entertainment value of their productions. This study proposes the hypothesis that, the very foundations of American regional theatres lie not in their productions' artistic or entertainment values, but in their contributions to their communities. Chapter 1 provides an overview of the development of the regional theatre sector as well as the basic terminology and the scope of the field. Chapter 2 examines the regional theatres' evolving relationship with Broadway from the early 1960s through the 1980s. Chapters 3 and 4 examine four regional theatres, Arena Stage, the Guthrie Theater, the Seattle Repertory Theatre, and the Milwaukee Repertory Theater, to look into regional theatres' relationship with the communities in which they are located. The case studies demonstrates that, once expected to pay their own way through the box office revenues alone, these theatres switched to local, non-governmental sources to supplement their box office revenues and/or to make up for the loss of the foundation grants by the early 1970s. Since then, they have been successfully obtaining annual contributions from local donors by nurturing a shared sense of ownership of the theatres within the communities. Chapter 5 summarizes the research findings and revisits the hypothesis proposed in Chapter 1. The study concludes that regional theatres have been able to secure their long-term continuation within their communities and continue to attract large audiences only because they have assumed the position of public theatres responsive to communities at large for the first time on a large scale in the history of American theatre.

• ### Electrodynamics of Nearly Ferroelectric Superconductors in the local London and non-local Pippard limits

Author:
Upali Aparajita
Year of Dissertation:
2010
Program:
Physics
Joseph Birman
Abstract:

In this work, electrodynamics of a Nearly Ferroelectric Superconduct- ing (NFE-SC) material in local London limit and nonlocal Pippard limit is reported. NFE-SC materials exhibit superconductivity and are in a nearly- ferroelectric state. One example of such materials is 'n' or 'p' doped $SrTiO_3$ . The structure of a single vortex in an NFE-SC thin film is explored. Taking $n-SrTiO_3$ as our sample of choice, the frequency dependent magnetic field and current within the sample are calculated. The expulsion of the vortex from the sample at resonances is observed. The interaction between two vortices due to the presence of high background dielectric is explored. The effect of finite thickness on the vortex structure is explored for an NFE-SC film. With increase in film thickness, the resonances become sharper and as a result the system undergoes oscillatory transition between ferroelectric, superconducting and Meissner-like states. Nonlocal effects in the NFE-SC thin film are explored in the Pippard limit. Specular Reflection and Random scattering are studied. Analytical as well as numerical methods are used to investigate the nature of the material and solve for the current and magnetic field within the sample. The current is found to be non-zero within the sample. The material properties can be manipulated to enhance or expel the current from within the sample with the change in frequency. The material shows complex transitions between Type-I, Type-II superconducting as well as Dielectric states. Numerical codes developed for the solution of the integro-differential equations are given.

• ### GUILTY STEREOTYPES: THE SOCIAL PSYCHOLOGY OF RACE AND SUSPICION IN POLICE INTERVIEWS AND INTERROGATIONS

Author:
Sara Appleby
Year of Dissertation:
2015
Program:
Psychology
Maria Hartwig
Abstract:

Over 300 people have been exonerated by post conviction DNA testing, unequivocally proving their innocence. Nearly 70% of these post conviction DNA exonerees are members of minority groups, and approximately 69% of those convicted as a result of false confessions are racial/ethnic minorities (www.innocenceproject.org). To date, there is little research on the role of race in police interviews and interrogations. The present research had two goals. First, we examined Black and White participants' experiences during a mock crime interview. Second, using the interviews from Study 1, we evaluated the role suspect race plays in police officers' veracity judgments. Using a sample of community members, Black and White suspects in Study 1 reported similar levels of anxiety and exhibited similar rates of nonverbal behaviors commonly believed to be cues to deception. Similarly, Black and White suspects cooperated with the investigation at similar rates. Police officers in Study 2 exhibited chance levels of accuracy in their culpability decisions. However, police officers were significantly more likely to misjudge innocent Black suspects as guilty than innocent White suspects, while showing no difference in their accuracy rates for guilty suspects. Additionally, police officers judged Black suspects to be less cooperative and less forthcoming than White suspects. These results suggest that being questioned about a crime is stressful regardless of a suspect's race or ethnicity. They also suggest that innocent Black suspects are at a greater risk of being erroneously judged as guilty during police interviews and interrogations. Implications and directions for future research are discussed.

• ### Adonis' Poetics of Vision and Modernity

Author:
Rasha Arabi
Year of Dissertation:
2015
Program:
Middle Eastern Studies
Christopher Stone
Abstract:

• ### Designing Social Production Models to Support Producer-Consumer Collaboration and Innovation in Digital Social Spaces

Author:
Reina Arakji
Year of Dissertation:
2009
Program:
Karl Lang
Abstract:

The first decade of the twenty-first century has seen dramatic advances in Internet technologies. Digital social spaces have emerged as popular Internet applications that are radically changing how firms and consumers of digital content interact. In the first chapter "Research Agenda" I introduce my research and the context within which it is developed. In the second chapter "Digital Consumer Networks and Producer-Consumer Collaboration: Innovation and Product Development in the Video Game Industry", I show how producers may partially open proprietary content to consumers to allow them to co-create derivative products. By re-appropriating these derivatives, the firms are successfully outsourcing parts of their design and development process to consumer networks. Applying economic analysis, I explore the potential benefits and risks of co-creation and derive the optimal combination of copyright enforcement and consumer compensation levels. In the third chapter "Firms and Innovative Digital Consumer Networks: An Analysis of Social Network Structure and Innovation Selection Mechanism", I explore how word of mouth effects are an important indicator of the popularity and economic potential of newly available digital goods. I present three selection mechanisms that firms can employ in order to identify user-generated product innovations that are fit for re-appropriation. The first is based on direct peer-review, the second uses a simple evolutionary game theoretic model, and the third proposes a stochastic epidemiological innovation diffusion model. In the fourth chapter "The Evolution of Innovation in Digital Social Spaces through Mutation, Natural Selection and Reuse of Novel Synthetic Routines", I examine the particular question of how innovations diffuse across digital social space designs and affect change on the industry level. I apply evolutionary theory as a theoretical lens and develop a stochastic process model that allows studying the factors that determine which innovations survive in the market and which do not. Analytical analysis of the proposed process model enables the examination of how organizational strategies affect industry trends and the determination of the conditions under which standardization in the industry is achieved. In the fifth chapter "Strategic Implications" I discuss the risks faced by firms in the digital social space industry that are adopting co-creation approaches. My research suggests that effective management of the collaboration between producers and consumers is key for sustainable co-creation business models. I conclude with the sixth chapter and present directions for future research.

• ### Reframing the Narrative of Dada in New York, 1910-1926

Author:
Sarah Archino
Year of Dissertation:
2012
Program:
Art History
Rose-Carol Long
Abstract:

• ### The geometry and combinatorics of closed geodesics on hyperbolic surfaces

Author:
Chris Arettines
Year of Dissertation:
2015
Program:
Mathematics
Ara Basmajian
Abstract:

In this thesis, we obtain combinatorial algorithms that determine the minimal number of self-intersections necessary for a free homotopy class $[\gamma]$ on an orientable surface, using algebraic input. Using this same input, we describe another algorithm which determines whether or not a minimally intersecting curve in $[\gamma]$ is \textit{filling}, that is, whether or not the complement is a disjoint union of disks or punctured disks. Next, we use these algorithms as inspiration for proving the existence of filling curves which self-intersect $2g-1$ times, which is the minimal number of intersections possible. The combinatorial viewpoint that is developed can then be used to obtain geometric information about the curves, which is the subject of the last chapter. Among other things, we obtain a sharp lower bound on the length of a filling curve with the minimal number of self-intersections on a surface of genus g.