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TRANSFORMATIVE CONNECTIONS: EXAMINING SUPPLY CHAIN RELATIONSHIPS AND NETWORK STRUCTURE CHANGES IN TIMES OF CRISIS
No full textThis dissertation consists of two essays that conceptually and empirically investigate how supply chain relationships and network structures evolve in response to external challenges. The rapidly changing global landscape, characterized by geopolitical tensions and crises, highlights the need for a comprehensive approach to understanding supply chain management. The two essays explore distinct facets of supply chain management, employing different theoretical frameworks, research methods, and datasets. In Essay One, I focus on the challenges posed by uncertainty and asymmetric information in supply chain management. Drawing on Information Processing Theory (IPT), I conceptually and empirically disentangle these challenges and explore how firms implement bridging and buffering strategies to navigate them. A systematic literature review of supply chain response strategies reveals conflicting findings regarding the impacts of uncertainty and asymmetric information. Through two studies, using primary and secondary data, I provide cross-validated research findings that clarify the unique effects of these challenges on response strategies. This enriches the current understanding of how firms adapt to external disruptions and offers practical guidance for managing uncertainty and information asymmetry. While Essay One focuses on specific strategies for addressing external challenges, Essay Two shifts to a broader perspective, exploring the strategic objectives of supply chain management. In Essay Two, I utilize Panarchy Theory from ecology to examine how external shocks, such as geopolitical conflicts, influence the strategic objectives - efficiency and flexibility - in supply chain management. Leveraging data from the FactSet Revere Supply Chain Relationship and Compustat databases, I analyze the dynamics of supply chain networks, focusing on the interplay between potential and connectedness. By viewing supply chains through the lens of social-ecological systems and their adaptive cycles, I develop actionable strategies for building sustainable supply chains in an increasingly volatile and unpredictable global environment. Together, these essays provide a multifaceted perspective on supply chain management, offering theoretical advancements and practical strategies for navigating external challenges. By integrating insights from Information Processing Theory and Panarchy Theory, this dissertation contributes to the broader discourse on strategic decision-making, equipping firms to thrive in complex and uncertain environments
AMERICAN INDIAN MEN AND THE ROAD TO GAINING COLLEGE ACCESS
No full textThis study investigates American Indian men's stories of college access and rationales for pursuing college. In addition, this research study will investigate American Indian men and college access roads and the significance behind the access roads. This study is situated in qualitative research and utilizes Tribal Critical Race Theory (TribalCrit) as the theoretical framework to provide a lens for the American Indian men's stories in this study regarding college access. This research study is theoretically conceptualized in the Indigenous research paradigm and will be utilized as a supporting framework for TribalCrit. The methodological approach of Indigenous storywork will be utilized and intertwined with the eleven American Indian men's conversations about their college access stories
The Compositional Analysis of Shell-Filled Pits Found at Silver Glen Springs Locus A (8LA1W)
No full textIn this thesis, I hypothesize that the shell-filled pits of Silver Glen Springs Locus A(8LA1W), will have generalized characteristics that are shared over multiple cultural periods in the region. The pits are mechanisms for cultural perpetuation that modified the landscape through social practices. On a detailed level, the shell-fill material of the pits will differ between the pits due to changes over time in the environment and the methods used to harvest the Viviparus sp. snails. I argue that shell sites, particularly shell-filled pits, are multifaceted in function and integral to connecting a community to their environment and cultural past through place-making. To support this narrative, I analyzed material from shell-filled pits that span multiple cultural phases in early Middle Archaic (8990-8600 cal BP) to Episode II of the Mt. Taylor period (6350-5700 cal BP) and compared this information to other research that analyzed material from the early Middle Archaic (8900-7400 cal BP) and the later Orange period (4600- 3500 cal BP). More specifically, I examine the contents of excavated shell-filled pits from Locus A of Silver Glen Springs (8LA1W) in central Florida. I analyze and compare the composition of the features based on their material sizes, shell species composition, and measurements of the Viviparus sp. shells. These attributes were interpreted to understand pit function. The data collected from this research revealed patterns in the sizing of materials within the shell-filled pits of the features, as well as variations in the quantity of different mollusk species between features. Typologies were identified to explain the correlation between mollusk species and the cultural phases of the Mt. Taylor period. I conclude that the general material deposited into the pits of Silver Glen Springs remained consistent throughout its occupation from the early Middle Archaic (8990-8600 cal BP) to Episode II of the Mt. Taylor period (6350-5700 cal BP), indicating cultural continuity in pit use, resource utilization, and cultural practices
Life Cycle Assessment and Environmental Optimization of Alternative Aviation Fuels
No full textThe aviation sector is a significant and growing source of global greenhouse gas emissions (GHGs), accounting for about 2.5% of global CO₂ and up to 4% of total climate impact when non-CO₂ effects are included. In response to the urgency of decarbonizing this sector, this thesis conducts a comprehensive Life Cycle Assessment (LCA) of fourteen alternative aviation fuel pathways, using the GREET 2024 model to evaluate their emissions, energy use, and environmental trade-offs. The study covers a wide range of fuels, including Alcohol-to-Jet (ATJ), Sugar-to-Jet, Hydroprocessed Esters and Fatty Acids (HEFA) from various feedstocks (canola, corn, soy, palm), and hydrogen-based systems, including hydrogen for fuel cell applications. Emissions are assessed across Well-to-Pump (WTP), Pump-to-Wake (PTW) and Well-to-Wake (WTW) stages, for two aircraft classes: Single Aisle (SA) and Large Quad (LQ). In the Well-to-Pump (WTP) analysis, Alcohol-to-Jet fuel from cellulosic biomass emerged as the most sustainable option, with the lowest total CO₂ emissions (14.11 g), no land use change emissions, and the highest energy efficiency (3258 kJ), supported by renewable energy credits in the GREET 2024 model. In contrast, corn-based standalone SAF showed the highest WTP emissions (57.84 g CO₂), along with significant land use change impacts (9.01 g CO₂e) and elevated CH₄ and NOₓ emissions. Sugar-to-Jet (STJ) fuels offered intermediate performance, with the biological route showing lower total CO₂ (21.29 g) but higher total energy use (4537 kJ). The lignocellulosic forest residue pathway showed the lowest GHG-100 emissions (1.93 g CO₂e) and total energy input (1026 kJ), confirming that waste-derived fuels are environmentally preferable. These findings highlight that feedstock type and conversion method significantly affect upstream emissions, positioning cellulosic and residue-based pathways as leading candidates for decarbonizing aviation fuel production. The normalized results show that HEFA from corn oil has the lowest WTW emissions, with emissions (0.0914 gCO_2e/kg·km) for SA and emissions (0.1050 gCO_2e/kg·km) for LQ, reducing GHG emissions by more than 85% compared to conventional jet fuel. ATJ from cellulosic biomass also performs exceptionally well, reaching emission (0.1400 gCO_2e/kg·km) for SA and (0.1440 gCO_2e/kg·km) for LQ, reflecting over 81–85% emission reductions. Hydrogen as a fuel for fuel cells produce the lowest use-phase emissions, achieving near-zero emissions (0.015 gCO_2e/kg·km) for SA, though their total WTW emissions (0.2350–0.2520 gCO_2e/kg·km) depend on the hydrogen production method. Fuels based on coal and natural gas using Fischer-Tropsch synthesis show the highest normalized emissions, with WTW values of emission (0.9635 gCO_2e/kg·km) ` for SA and emission (1.0000 gCO_2e/kg·km) for LQ, making them the least sustainable options. Energy and water use were also analyzed. For instance, ATJ-Cellulosic had the lowest total energy demand (3258 kJ), mostly sourced from renewables, and the highest energy delivery efficiency, exceeding 99.6%. In contrast, STJ pathways consumed more energy (up to 4537 kJ), and soy-based HEFA required the most water (2358 cm³/MJ), due to irrigation. In conclusion, the study identifies waste-based and renewable fuels—especially ATJ-cellulosic, HEFA-corn oil, and hydrogen fuel cells—as the most promising solutions for reducing aviation emissions. While each fuel type has limitations in cost, infrastructure, or feedstock availability, these options offer the strongest potential for decarbonizing air travel and achieving long-term climate goals
Provenance of Upper Cretaceous to Paleocene strata in the Alberta foreland basin using detrital zircon U-Pb geochronology and (U-Th)/He thermochronology double dating
No full textFlexural foreland basins hold sedimentary records of paleoenvironment and hinterland erosion, making them useful for reconstructing the evolution of orogenic systems. The Turonian–Coniacian Cardium to Paleocene Paskapoo formations have been described in terms of their sedimentary facies and paleoenvironments, but the relationship to fold-thrust belt shortening is contested. Geochronology and low-temperature thermochronology datasets allow us connect Alberta foreland basin strata to tectonic and eustatic events. Here, we present a 1780 meter measured stratigraphic section and new detrital zircon U-Pb geochronology ages and (U-Th)/He thermochronology (ZHe) dates from Turonian–Coniacian formations. Turonian–Campanian sandstones interrupt marine shales and yield ZHe date populations that young up-section (Cardium Fm, ~148 Ma and ~319 Ma; Marshybank Fm, ~124 and ~278 Ma; Chinook Mbr, ~74 and ~139 Ma), reflecting progressive erosion into the fold-thrust belt. U-Pb ages indicate a Proterozoic-Ordovician fold-thrust belt source in the Turonian, and a shift to a more easterly Devonian-Triassic fold-thrust belt source in the Coniacian–Campanian, corresponding to punctuated transpression in the distal fold-thrust belt. Campanian–Paleocene sandstones record deltaic–nonmarine environments and fold-thrust shortening known as the “Rundle Pulse.” These units share age spectra indicating a dominant Neoproterozoic–Ordovician fold-thrust source, supporting unroofing of new sources following proximal uplift. ZHe date populations become older moving up-section in the Maastrichtian–Paleocene (Coalspur, ~59 Ma and ~187 Ma; Paskapoo, ~152 and ~226 Ma), reflecting foreland basin cannibalization. Reconstruction of the Alberta foreland basin clarifies sedimentary responses to climate, distal pulses of transpression, and fold-thrust belt shortening
HIDDEN ASSETS: AN INTERPRETATIVE PHENOMENOLOGICAL ANALYSIS OF TRANSLANGUAGING AS A WRITING RESOURCE FOR BILINGUAL COMMUNITY COLLEGE STUDENTS IN COMPOSITION I
No full textThis study explores how Spanish-English bilingual students navigated the “Standard English” language policy of their community college’s Composition I course by drawing on their natural translanguaging capabilities. Data was collected through semi-structured interviews with students who completed the course within the past two years. Using Interpretative Phenomenological Analysis and an asset perspective, the analysis revealed that the students leveraged five key assets to meet the language use expectations of Composition I: 1) Metalinguistic and Contextual Language Use Awareness, 2) Language Agency, 3) Self-Sufficiency, 4) Positive Bilingual Identity, and 5) Translanguaging. These findings advance the perception of translanguaging as a valid, effective, and linguistically equitable ideology and pedagogical approach in First-Year Writing instruction. This study ultimately demonstrates that translanguaging was a natural and vital aspect of the writing process for study participants. It suggests that First-Year Writing instructors should recognize multilingual students as skilled “translanguagers” who possess an inherent repertoire of abilities that support academic writing development, even when the students themselves may not fully recognize these skills. By embracing a translingual ideology, instructors can resist defaulting to deficit perceptions of language variety while respecting students’ rights to self-determination and language agency
Unions, Race, and the Uneven Rewards of Teaching
No full textThis study examines how racial income inequality persists within the teaching profession, a field often considered a pathway to stable, middle-class employment due to its standardized pay structures and strong union presence. This makes teaching a particularly revealing case for examining wage stratification within a predominantly public-sector and highly unionized occupation. Public-sector jobs are often noted for their government oversight, and unions are also recognized for promoting pay equity among union members. However, both systems operate within larger structures of inequality, which can limit their effectiveness in addressing wage disparities. By investigating the intersection of race and ethnicity, union membership, and wages, this research uncovers several mechanisms that disrupt or perpetuate wage disparities among teachers. This study uses data from the Current Population Survey Merged Outgoing Rotation Group (CPS MORG) from 1989 to 2023 to address the question: how does union membership intersect with race to influence wages among teachers? The analysis highlights the dual role unions play in disrupting and perpetuating wage disparities, revealing a nuanced relationship between union membership, race and ethnicity, and wages within the teaching profession. This underscores the complexities of labor stratification even in regulated environments. The teaching profession illustrates how institutional mechanisms like unionization interact with broader patterns of inequality, sometimes reproducing disparities they aim to dismantle. By focusing on the intersection of union membership and racial inequality in a public-sector profession, this study adds nuance to current debates on labor equity. It highlights how unions can both alleviate and reproduce disparities, depending on the broader institutional and historical contexts in which they operate
"A Dangerous Element": Politics of White Citizenship and Land Use in the Chickasaw Nation, 1866-1890
No full textIn 1866, the Chickasaw Nation signed a treaty with the United States that ushered in an era defined by access to Chickasaw land and citizenship. Chickasaw law stipulated that any citizen of the nation could utilize the land held in common so long as they could afford to work it. Chickasaws built homes, businesses, and a thriving economy through this process. But citizenship was not reserved only for Chickasaws-by-birth. Article 38 of the 1866 Treaty stipulated that any White person who married a Chickasaw citizen would be treated as though they were Chickasaw themselves. With the addition of non-citizens living in the nation, demand for land increased. Chickasaw politicians faced and resisted this demand and pressure to relinquish their sovereignty to non-citizens by constructing permit systems and limiting White access to Chickasaw lands. However, two competing visions of Chickasaw sovereignty emerged within the nation that culminated in the election of 1888. This thesis examines the political conflict of 1888, illustrating how Chickasaw politicians sought to preserve their nation’s autonomy and future in Indian Territory
"I am not mundane, I am divine" : a historical analysis of the women's spirituality movement in the United States from the 1970s to the 2020s
No full textThis thesis connects the Women’s Spirituality Movements that began in the 1970s and continued to develop through to the 2000s to the popularization of alternative spirituality in the more recent age of social media. Specifically, I examine the Women’s Spirituality movement that began in the 1970s which has maintained relevancy both academically and socially in varying degrees since its conception. My work will make relevant connections through a variety of different interdisciplinary methods such as historical analysis with primary source archival documents, an IRB approved survey, and oral history interviews. Throughout this thesis I illustrate the evolution of theories of religious development as feminist methodology and the ways in which this shift proved relevant to different social and political movements. The Women’s Spirituality Movement marked an important arc of feminist and lesbian spiritual development and culture. Indeed, the Women’s Spirituality Movement was able to establish legitimacy through the academic discoveries and theories of the women and the feminine divine as the spiritually significant. However, the Women’s Spirituality Movement encountered issues due to divergent viewpoints on transgender inclusion, and today many of the perspectives have become confused with conservative and influencer wellness content and the concept of "conspirituality.
