This dissertation examines the role of affect and emotion in contemporary citizenship practices along the US-Mexico border. Drawing from mixed qualitative methods, this dissertation employs inter-subjective research practice to understand the entanglement between the state, objects, citizen, and non-citizen along the border. This study presents two interrelated findings: 1) state security objects "impress" and mediate citizen movements, and 2) a dual masculinity of offensive and defensive emerges around compassionate actions toward or distancing actions from migrants in need of aid or assistance. Drawing on Slavoj Žižek, this dissertation explores the border-as-parallax-object to reveal the ways that the border is inscribed beyond the material fence. In this way, this dissertation connects disparate literature within human geography concerning materiality and psychoanalytic theory. By psychoanalytically reading and coding research interviews, this dissertation also develops the concepts of the face-of-the-state and ambivalent citizenship to elucidate the impact of security objects on citizen practices. The findings build toward a new subfield in political geography: emotional border studies.

Although existing cross-border M&A research suggests that national pride is associated with higher bid premiums, the underlying rationale behind these national pride bids is unclear. We study two plausible explanations for this phenomenon: payment for a prearranged expansion strategy (real options) and bidders’ lack of experience in a target country (organization learning). Using a sample of cross-border acquisitions of developed-country targets by developing-country acquirers, we perform an extensive media search to identify 36 acquisitions that involve national pride. We divide these 36 acquisitions into those with zero bids completed in that particular country prior to the national pride bid (non-foothold bidders) and those with at least one bid completed in that country before the national pride acquisition (foothold bidders). We find that the higher premium paid in so-called national pride bids is primarily attributable to the non-foothold acquirers. Since non-foothold characteristics can proxy for either lack of experience or higher value of embedded real options, or both, we perform further tests which confirm that the higher premium of national pride bids can be attributed to both channels, supporting both organizational learning theory and real options explanation. We further demonstrate that national pride acquirers underperform operationally post-acquisition, and such underperformance is also attributable to the non-foothold acquirers. One explanation for this finding is the lack of prior acquisition experience of non-foothold bidders.

The farm workers who diligently tend and harvest the US fields and produce is a major component of the agriculture industry. This research explores the current issues and challenges that domestic, seasonal farm workers face through the lenses of embodiment and habitus theory. Narratives and insights from interviews were integrated with current literature to present a complete picture of the cyclical life of the domestic farm worker in San Luis, Arizona. This thesis argues that farm work is a unique profession which has left its mark on the body and the behavior. Those in the border region have added agency due to the opportunities the border presents. As this research highlights, additional attention and research is needed to redesign policies and initiatives to adequately assist and provide for a population that provides so much.

Background: Historically, US immigration policy, including border enforcement, has served to define national belonging and through this process, has constructed particular groups as undesirable or threatening to the nation. Such political-economic strategies contribute to oppression through gender, ethnic, and class discrimination and economic and political exclusion. This dissertation is based on three studies that collectivity explored these issues as structural determinants of health (SDH) and forms of structural and everyday violence. Objectives: These studies aimed to (1) examine the relations between immigration related mistreatment and practices of ethno-racial profiling by immigration officials on health of Mexican immigrants of the Arizona border (2) contextualize the structural and everyday violence of such institutional practices through mistreatment narratives and (3) evaluate the impact of an intensive Border Health Service Learning Institute (BHSLI) on public health students' ability to locate such forms of violence and identify the role of public health advocacy. Methods: Study one and two are a secondary analysis of quantitative and qualitative data drawn from a random household sample of 299 Mexican-origin farmworkers. Study three is a qualitative analysis of 25 BHSLI student reflection journals from 2010-2012. Results: Farmworkers were US permanent residents and citizens, employed in US agriculture for 20 years. Approximately 25% reported immigration related mistreatment, more than 50% were personally victimized and 75% of mistreatment episodes occurred in a community location while residents engaged in routine activities. Immigration mistreatment was associated with a 2.3-increased risk for stress in adjusted models (OR 2.3, CI 1.2, 4.1). After a week at the US-Mexico border, BHSLI students articulated aspects of immigration and economic policy impacting health. Students framed economic and immigration policies as health policy and found the role of public health to convene stakeholders toward multi-institutional policy solutions. Conclusion: Immigration related mistreatment and ethno-racial profiling are historically embedded at institutional and individual levels and reproduce inequality overtime. Such institutional practices of discrimination are SDH and forms of structural and everyday violence. Academic public health programs, engaged in service learning strengthen students' abilities to learn and act on such SDH and contribute to campus-community engagement on related ethno-racial health disparities.

The racial violence between Navajos and whites in Farmington, New Mexico is historical. One of the first documented acts of racial violence was in 1875, when white settlers would take gunshots at Navajos for entertainment. This violent atmosphere continued throughout the years, and most notoriously in 1974 with the murders of three Navajo men by three white teenagers. This violence was part of an ongoing cycle of racism and hostility between Navajos and whites. The murders ignited local and national media frenzy, and Farmington was dubbed the "Selma, Alabama of the Southwest." Navajo citizens responded to the murders with activism and demonstrations in the streets of Farmington, and demanded justice and change. Throughout subsequent years, racism and racial violence continues and Navajos are still the targets of hate crimes. The purpose of this study is to examine and investigate the hate crimes that have been committed against Navajo people in Farmington and its neighboring towns. This study, in particular, analyzes the impacts that hate crime has on Navajo citizens. Interviews with Navajo victims of hate crime expand on the findings of a pilot interview. The research in this dissertation shows that the affects of hate crime are long lasting and impact not only the victims but also the entire Navajo Nation. As a result of the unrelenting hate crimes in Farmington, the Navajo Nation has created a human rights commission to investigate race relations in Navajo Nation border towns. This study addresses what steps the Navajo Nation and Navajo citizens have taken to combat and recover from racism and racial violence. Finally, this study proposes interventions to improve race relations.

Residents of the region just north of the U.S.-Mexico border experience migration and smuggling activities through constantly changing found objects on the desert landscape--a pair of shoes neatly arranged on a trail; a cross hung in a tree; a can of food balanced on a rock. Consideration of some found objects as placed objects, set down with apparent care by travelers unseen and unmet, demonstrates how the objects uniquely inform the perceptions and practices of residents who find them. Such finders speculate about the lives and movements of others by utilizing the objects as metaphoric figures of practice, tools that uniquely but only partially help them bridge knowledge gaps among multiple constantly changing variables in their everyday lives. The finding-speculating dynamic confounds a direct and easy association of found items with trash, of migrants with threat, and of a border wall with hopelessness. Residents instead craft a sophisticated and practical cultural memory of place in a region that is inhabited differently by day than by night, where tragedy, grace, danger, and hope fuse in unexpected ways. The objects and events that erupt into rural border life inspire a poetics that matches the territory. In a landscape of uncertainty, placed objects secure and extend situational understandings beyond common conceptual frames of epidemic, normalized patterns of violence and collateral damage that are often considered necessary conditions of life in the region.

This study investigates how the relationship between nationalism and language learning is manifested in discourse at an English language classroom facilitated in Nogales Sonora along the Mexico/US border. Employing ethnographically-sensitive critical discourse analysis, this study contributes to the fields of English Language Teaching (ELT), Border Studies, and Nationalism Studies by introducing three analytical terms that provide a means to document the social construction of nation-states (termed herein as imagined national communities of practice). The three terms are (1) nationalist practices, which refers to social practice that presupposes nationalist principles, (2) nationalist border practices, which refers to discerning self/other along nationalist lines, and (3) nationalist standard practices, which refers to the articulation of nationalist standards of language and subjectivity. The students attending the class under analysis comprise a unique population in that they are adults who occupy positions of economic and social privilege in the Nogales Sonora community because of their management-level employment at maquila factories. Reflecting their status, the students are invested in nationalist practices of border and standard in order to align themselves with nation-state institutions and to distance themselves from cultural and linguistic liminality (e.g., Mexican-American, paisano, code-switching, and Spanglish) characteristic of border regions. The classroom under observation upheld nationalist borders and standards, with important consequences. First, nationalist notions of border led classroom participants to disavow the bilingual language use that was clearly necessary for successful classroom operations, despite an English immersion classroom policy. Second, nationalist practices established the local classroom space as indexically linked to an imagined American community of practice, understood by students to be authentically monolingual, monocultural, and distinct from Mexico. Association with--but not full incorporation into--this particular understanding of the American nation-state is advantageous to students for maintaining their elevated social and economic positioning in the local Nogales Sonora community. Thus, this classroom serves as a site of nationalist border reproduction and the reinforcement of hierarchies of privilege. The study encourages teacher reflection on what nationalism can mean to formal language learning contexts and suggests directions for re-aligning classroom practice to approaches that embrace multilingual realities of language learning contexts.

Purpose/Aims: The aim of this study was to understand the health issues of a rural Southeastern Arizona border community. More specifically, this study used community assessment with ethnographic principles to: 1) Conduct a community assessment centered on definitions of health, access to care, quality of care, and health needs in a rural Southeastern Arizona border community; and 2) Compared the findings of this study to previous studies, models, and theories of rural nursing and rural health.Background: It is important to understand that each community has a unique set of health priorities that are dictated by these factors; making every rural community different. Much of the work that has been done in rural America has been performed in the Midwest, Southeast, or Northern states. There is limited information regarding Arizona or even Southern US border communities and whether previous work can be generalized to areas that have not been studied.Sample and Methodology: This study utilized community assessment with ethnographic underpinnings through the use of focus groups, key informant interviews, participant observation, and secondary data analysis of existing community data. Sampling for the focus groups and key informants was purposive. Focus groups included: 1) participants who use local health services and 2) participants who do not.Analysis: Lincoln and Guba's (1985) guidelines for rigor in qualitative studies was utilized. Thematic analysis and thick description were used to analyze data. Theoretical triangulation was performed between individual, group, and community level data with theoretical linkages made to community capacity theory and rural nursing key concepts.Implications and Conclusions: The location of this project, rural Arizona community, near the US-Mexico border, posed an interesting contrast to the proposed concepts widely being used today. From this study, healthcare leaders in this community are better equipped to provide relevant, high-quality, and safe services; but an informed community emerged that has an interest in promoting the health and well-being of the community as a whole.

Soilborne plant pathogens are responsible for many of the major crop diseases worldwide. However, plant root tips are generally resistant to pathogen infections. The goal of this dissertation research is to understand the mechanism of this natural resistance by testing the hypothesis that root caps and root border cells control the rhizosphere community through the biological products which they deliver to the soil. Specific objectives of this dissertation project are 1) identifying, isolating, and characterizing the genes important for border cell development and for root exudates delivery, and 2) analyzing the function of extracellular macromolecules in root exudates in root tip-fungal pathogen interaction. The expression of a primary cell wall synthesis gene, PsFut1, encoding Pisum sativum fucosyltransferase, was characterized during border cell production, and the impact of silencing this gene on border cell development was examined. Another gene, BRDgal1, encoding β-galactosidase, was identified and characterized in Pisum sativum during this study. It was shown that this β-galactosidase is specifically produced in and secreted from root border cells. The microarray transcriptional profiling in M. truncatula and mRNA differential display analysis in pea plants were carried out following the induction of border cell production to gain a broader understanding of the genes which potentially influence border cell development. In order to study the commonality of border cell production across different plant species, the expression of rcpme1, the marker gene for border cell production, was compared between the garden pea and a gymnosperm species, the Norway spruce (Picea abies). To accomplish the second objective, the focus of this study was shifted from border cell development to mucilaginous root exudates excreted by border cells and root cap cells. This resulted in a breakthrough in the understanding of the mechanisms of root tip resistance. The presence of extracellular DNA in the root mucilage was discovered and its requirement for root tip resistance to fungal infection was demonstrated. Extracellular proteins in the root mucilage were identified and they were shown to be also required for the root tip resistance to fungal infection. This work provided new insights into understanding plant defense mechanisms.

This dissertation applies economic theories and econometric methods to analyze the interactions between government policies and economic agents in two important and current topics: the protection of the environment and illegal migration.Following the introduction, the second chapter studies the empirical strength of bi-directional linkages between environmental standards and performance, on the one hand, and environmental innovation, on the other. Our empirical results reveal that environmental R&D both spurs the tightening of government environmental standards and is spurred by the anticipation of such tightening, suggesting that U.S. environmental policy (at least in the context of the manufacturing industries that we study) has been responsive to innovation and effective in inducing innovation.The third chapter studies whether a voluntary reduction pollution programs can prompt firms to develop new environmental technologies that yield future emission reduction benefits. Conversely, a VRP may induce a participating firm to divert resources from environmental research to environmental monitoring and compliance activities that yield short-term benefits in reduced emissions. We find evidence that higher rates of program participation are associated with significant reductions in the number of successful environmental patent applications four to six years after the program ended.The fourth chapter examines the migration duration of Mexican immigrants in the U.S. using data from the Mexican Migration Project (MMP). In the past, temporary migrations were frequent, and often the rule rather than the exception in the case of Mexican immigrants. This pattern may be changing due to the tightening of the border between Mexico and the Unites States. Moreover, this paper examines whether migration experience, demographic characteristics, economic conditions or social networks drive the time Mexican immigrants to reside illegally in the United States. The empirical analysis shows that the migration duration increases as the U.S. expected real wage increases. Tighter U.S. migration policies have an ambiguous effect on the migration duration while longer distances decrease the hazard of return to their state of origin.In the final chapter of this dissertation, the general findings are concluded and some future avenues of research are discussed.