684 Works

Investigation of Graphene and other Low Dimensional Materials

Jacob Alexander Tosado
This thesis describes experiments to characterize defects in two-dimensional materials and understand their effect on electrical conductivity. Defects limit the electrical conductivity through a material by scattering electrons. Understanding the physics of defects is therefore essential to building materials and structures with novel electronic properties. This dissertation has focused on low dimensional materials because they are simple thereby allowing for more advanced theory and they will act as a foundation for understanding higher dimensional systems....

Gender Identity and Psychological Adjustment in Men with Serious Mental Illnesses

Peter M. Selby
Masculine gender identity and its relationship with self-concept and psychological adjustment was studied for men with serious mental illnesses. Two hundred and thirty-eight men with serious mental illnesses from 15 psychosocial rehabilitation centers in Maryland and Northern Virginia rated a set of 47 masculine beliefs and attributes. Items were derived from a previous study (Keller, 1994) which generated a set of 78 beliefs about masculinity through a series of 9 focus groups with men in...

The Doxastarion of Markos Domestikos in the New Analytical Method: A Critical Analysis of a Musical Legacy

Christina Indianos Filis
The New Analytical Method that was created by Chrysanthos Madytos (1770-1846), Gregorios Protopsaltis (d. 1821), and Chourmouzios Chartophylax (d. ca. 1840), came from an effort to simplify and standardize the system of neumatic notation and modal theory of old Byzantine chant notation in a more precise type of notation that would help to simplify the transmission of melodies. This reform was adopted by the Ecumenical Patriarchate in 1814 and led to the transcription of numerous...

PREGNANCY AND WORK: A MIXED-METHODS STUDY OF JOB SATISFACTION AND TURNOVER INTENTIONS DURING A FIRST PREGNANCY

Katherine Ross
Despite the prevalence of working mothers and mothers-to-be, there is a paucity of research on the intersection of pregnancy and work. This study used a mixed methods approach to examine the workplace experiences of women who were working full-time during their first pregnancy. Participants (N = 166) represented a diverse sample in terms of geographic location (36 states), income level ($25,000 to over $200,000), education level (less than high school through doctorate) and age range...

THE CULMINATION OF THE RUSSIAN ROMANTIC PIANO SCHOOL AS REPRESENTED BY EARLY AND LATE WORKS OF RACHMANINOFF, SCRIABIN, AND MEDTNER

Ekaterina Zaitseva
Rachmaninoff, Medtner, and Scriabin are the most significant composers of the Russian Romantic piano school in the first half of the twentieth century. Their aesthetics, inspirations, and approaches to composition are each unique, and the representative works from their early and late periods provide an excellent opportunity to examine their differences. A disciple of Tchaikovsky, Rachmaninoff composed most of his works before immigrating to the West in 1917. Unlike the emotionally charged, melodically directed compositions...

Instituting Violence: Spaces of Exception in Twentieth- and Twenty-First Century American Fiction

Nicholas Allen Slaughter
Since the War on Terror’s onset, American studies have popularized philosopher Giorgio Agamben’s argument in the treatises Homo Sacer (1995) and State of Exception (2003) that modern governments have come to operate in a permanent state of emergency. Agamben terms this phenomenon a “state of exception” in which law may be set aside at any time. Critics have productively applied this theory to post-9/11 U.S. government actions like surveillance programs, torture, and military interventions. Scholarship...

\"The voice of duty is the voice of God\": The spatial manifestation of the religious duty of health in Seventh-day Adventism

Nathan R. Burtch
The Seventh-day Adventists are a millennial Christian denomination that traces its lineage to the Millerites of the mid-nineteenth century. Among the various theological differences espoused by Adventism is a predilection towards healthful living and providing healthcare services to those in need; a religious duty of health. This research studies the intersection of religious behavior, health, and space within Adventism. A content analysis of the writings of Ellen G. White, a particularly important voice in the...

I Am But I Do Not See: Color-Blind Racial Ideology in College Millennials

Jonathan Cox
Research suggests that in the midst of pervasive claims of a post-racial society, it is mostly whites who ascribe to color-blind ideology, while people of color still point to the significance of race. However, we know relatively little about the views of young adults, who have largely come of age during the time of the U.S.’ first black-identifying president. Building upon research done by Bonilla-Silva (2003), and drawing upon from literature on racial ideology and...

FOREIGN VERSUS U.S.-BORN BLACK ADULT OBESITY AND DEPRESSION: AN ANALYSIS OF ENDURING PATTERNS AND MECHANISMS

Shanna Brewton-Tiayon
Foreign-born Blacks have better health outcomes than U.S.-born Blacks. The extent to which the health status of foreign-born Blacks change with increased exposure to the U.S. socio-cultural environment is less known than for other immigrant groups. Two prominent theories used to understand foreign and U.S.-born health disparities are the immigrant health paradox theory and immigrant health assimilation theory. The literature is conclusive that foreign-born Blacks have better health outcomes than U.S.-born Blacks, but this dissertation...

Measuring Transactive Memory Systems Using Network Analysis

Kylie Goodell King
Transactive memory systems (TMSs) describe the structures and processes that teams use to share information, work together, and accomplish shared goals. First introduced over three decades ago, TMSs have been measured in a variety of ways. This dissertation proposes the use of network analysis in measuring TMS. This is accomplished by describing the creation and administration of a TMS network instrument, evaluating the relation of the proposed network measures and performance, and considering the validity...

Compañeros del exilio: Una cartografía de resistencia después de la Guerra Civil española

Kathryn Taylor
Title of Dissertation: COMPAÑEROS DEL EXILIO: UNA CARTOGRAFÍA DE RESISTENCIA CULTURAL DESPUÉS DE LA GUERRA CIVIL ESPAÑOLA Kathryn Taylor, Ph.D., 2017 Dissertation directed by: Professor José María Naharro-Calderón, Department of Spanish and Portuguese This dissertation studies the cultural production of three intellectual couples following the Spanish Civil War. Using a variety of genres, my project explores and problematizes traditional approaches to the study of literary and artistic productions in the Post-Civil War period. While previous...

Examining Labor Union Political Mobilization Tactics in the Modern Campaign Context

Genevieve Mayhew
In this project, I will discuss topics in American political behavior, specifically, the role labor unions play in determining the political participation of their membership. In the face of diminishing resources, declining membership, and unfriendly state legislatures, labor unions employ a whole host of mobilization tactics to achieve desired electoral outcomes. Traditional strategies such as in-person or member-to-member contact, mail or phone contact, and online digital engagement has all required a fresh start to keep...

Theoretical Studies of the Workings of Processive Molecular Motors

Huong Thuy Vu
Processive molecular motors, such as kinesins, myosins and helicases, take multiple discrete steps on linear polar tracks such as microtubules, filamentous actin, and DNA/RNA substrates. Insights into the mechanisms and functions of this important class of biological motors have been obtained through observations from single-molecule experiments and structural studies. Such information includes the distribution of n, the number of steps motors take before dissociating, and v, the motor velocity, in the presence and absence of...

THE WEIGHT OF EVIDENCE IN DRUG CASES: A MULTI-METHOD STUDY OF DISCRETION AND SENTENCING IN TEXAS

Jacqueline Lee
While guilty pleas dominate criminal sentencing, researchers are still working to understand the inner workings of plea bargaining. Furthermore, much sentencing research focuses on guideline jurisdictions and many readily-available datasets do not include information on evidence or arrest circumstances, which are likely important for prosecutorial decisions. This dissertation starts to fill these gaps with a multi-method study using newly collected set of drug cases from a large, urban county in a state (Texas) with an...

Essays on the Management and Organizational Practices Survey

Scott William Ohlmacher
This dissertation examines the role that management practices play in plant performance and addresses the many challenges that accompany efforts to measure accurately the adoption of management practices. I first provide background on a recent Census Bureau survey, the Management and Organizational Practices Survey (MOPS), which measures management and organizational practices at manufacturing plants in the United States. Economists have long hypothesized that management is an important component of firm success, but until recently, the...

Sexuality, Gender, and the Performance of Wrestling Fan Culture

Jessica Lloyd Krenek
This dissertation focuses on fan culture in the world of professional wrestling, specifically the perspectives and experiences of female and AFAB (assigned female at birth) non-binary fans . The project explores broader themes about empowerment, female sexuality, and representation through the lens of fans of American professional wrestling, particularly World Wrestling Entertainment (WWE). The dissertation looks at the performance of self and the performance of fandom on social media sites (such as Tumblr, Twitter, and...

Becoming a Physicist: How Identities and Practices Shape Physics Trajectories

Gina Quan
This dissertation studies the relationships and processes which shape students' participation within the discipline of physics. Studying this early disciplinary participation gives insight to how students are supported in or pushed out of physics, which is an important step in cultivating a diverse set of physics students. This research occurs within two learning environments that we co-developed: a physics camp for high school girls and a seminar for undergraduate physics majors to get started in...

ARE SUICIDE BOMBINGS REALLY UNIQUE? A MULTI-LEVEL ANALYSIS OF WORLDWIDE TERRORIST INCIDENTS, 1980-2015

Michael Robert Distler
Suicide bombing is a lethal terrorism tactic that kills over 8 people per attack and injures 21 other people, on average. Suicide bombings have also been used more frequently in 2015 than they have in any one year since the tactic was first introduced in Iraq in 1981 and they were also used in more countries and by more groups than ever before. Even though the tactic is continuing to grow around the globe, there...

LURKING IN THE SHADOWS OF HOME: HOMELESSNESS, CARCERALITY, AND THE FIGURE OF THE SEX OFFENDER

Terrance Wooten
This dissertation is a multi-methodological and interdisciplinary project that examines how those who have been designated as "sex offenders" and are homeless in the Maryland/DC area are managed and regulated by various technologies of governance such as social policies, sex offender registries, and civil commitment statutes. By looking at the cultural, social, and political geography of shelters, the suburbs, and the city, I challenge scholars to reconsider how we understand stigma, belonging, and home. More...

An Investigation of the Parameterized Prediction of Lightning in Cloud-Resolved Convection and the Resulting Chemistry

Kristin Smith
The Deep Convective Clouds and Chemistry (DC3) field campaign provided a unique set of observations to further investigate the role lightning and lightning-generated nitrogen oxides (LNOx) have on the composition of the upper troposphere. With the Weather Research and Forecasting model coupled with Chemistry (WRF-Chem), a cloud-resolved simulation of the 29-30 May 2012 severe supercell system investigated 18 flash rate parameterization schemes (FRPSs), the mean LNOx production per flash, and the transport and distribution of...

Worlds Unto Themselves: Tightness-Looseness and Social Class

Jesse Ryan Harrington
Past research has convincingly demonstrated that social classes are culturally distinct entities with their own identities, values, beliefs, and customs. In short, they are “worlds unto themselves.” In this dissertation, I argue that social class cultural differences—particularly between the middle class and the working class—are also expressed in terms of tightness-looseness, or the degree to which a cultural entity has strong norms and low tolerance for norm deviance (tight) or weak norms and high tolerance...

COMPACT LASER DRIVEN ELECTRON AND PROTON ACCELERATION WITH LOW ENERGY LASERS

George Albert Hine
Laser-driven particle accelerators offer many advantages over conventional particle accelerators. The most significant of these is the magnitude of the accelerating gradient and, consequently, the compactness of the accelerating structure. In this dissertation, experimental and computational advances in laser-based particle acceleration in three intensity regimes are presented. All mechanisms investigated herein are accessible by “tabletop” ultrashort terawatt-class laser systems found in many university labs, with the intention of making them available to more compact and...

Testing a Dual Path Framework of the Boomerang Effect: Proattitudinal versus Counterattitudinal Messages

Xinyan Zhao
This dissertation aims to differentiate two types of boomerang effects on belief and attitude change: a boomerang effect under a proattitudinal message and a boomerang effect under a counterattitudinal message. By employing a 2 (Message valence: anti-policy vs. pro-policy) × 2 (Issues: legal age for drinking vs. legal age of marriage) × 2 (Threat to freedom: low threat vs. high threat) × 2 (Argument quality: low quality vs. high quality) plus 2 (Control groups: no-message...

BIOPHYSIOLOGICAL PREDICTORS OF POLITICAL ATTITUDES, AGGRESSION, AND VIOLENCE

Katherine Michelle Sawyer
This dissertation consists of three essays examining the development of aggressive and violent political attitudes and actions. The first paper examines the relationship between genetic variation, volumetric changes in the ventral diencephalon, and aggressive attitudes towards outgroup members. Results from a mediation analysis demonstrate the role of brain development in the formation of hostile political attitudes. The second paper uses a formal model to explore the matching of potentially politically violent persons with organizations engaged...

The Rhetoric of Eco-Revolutionary Activism: Constructing the Earth Liberation Front

Jade Olson
In the mid-1990s, a new voice of environmental protest emerged in the United States. Frustrated by the failures of both mainstream and radical environmental activism to protect the Earth from the catastrophic effects of industrial capitalism, a small group of clandestine activists identifying as the Earth Liberation Front (ELF) utilized vandalism, arson, and other means of property destruction to articulate a rhetoric of revolutionary environmental resistance. An unlikely coalition of voices from industry, government, and...

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