Digital Commons Network^™

Structure-From-Motion Derived Snow Cover In Burned Forests Of The Western Oregon Cascades, Siobhan Ciafone

Dissertations and Theses

Forest fire occurrence in the western US has increased rapidly since the 1980s, and most western US fires occur in the seasonal snow zone. Burned forests influence snow accumulation and melt patterns for years following fire, and understanding drivers of variability in snow cover across a burned landscape at the basin-scale is necessary for accurate hazard prediction and water resource forecasting. Basin-scale surveys of snowpack are possible with remote sensing, but accurate sensing methods such as Light Detection and Ranging (LiDAR) are often cost-prohibitive. In the last decade, structure-from-motion (SfM), an optical remote sensing technique, has emerged as an affordable …

The Affective Discourses Of Eviction: Right To Counsel In New York City, Hadley Savana Bates

Dissertations and Theses

This study explores the interrelationships of urban policy, affect, and power through a critical discourse analysis of New York City's "Universal Access to Legal Services" / "Right to Counsel" ordinance, a 2017 initiative that has persisted amidst the evolving landscape of eviction diversion following the outbreak of Covid-19. By examining archival documents regarding the groundbreaking policy, this research reveals how affective discourses regarding vulnerability, stress, and solidarity situate political actors in relation to urban policy, political movement, and the material conditions of survival. Drawing upon critical policy studies and affect theory, this study underscores the affective dimensions of policy mobility …

A Just Futures Framework: Insurgent Roller-Skating In Portland, Oregon, Célia Camile Beauchamp

Dissertations and Theses

Since the beginning of the COVID-19 pandemic in 2020, insurgent roller-skating has 're-emerged' as a popular use of urban space. Drawing on spatial justice theories, futures literature, and queer spatial theory, this study theorizes a four-part just futures framework to analyze the nuance and tension within the roller-skating scene in Portland, Oregon. The just futures framework: 1) creates a space for expanding planning practice to reflect overlooked and suppressed perspectives on urban space; 2) explores insurgent urbanism’s contradiction between the reification of hegemonic systems and its counter-hegemonic and subversive qualities; and 3) assesses the spatial and planning implications of insurgent …

A Mixed Methods Approach To Understanding The Links Between Mining, Climate Change And Selected Health Outcomes In India, Mary J. Cheruvillil

Dissertations and Theses

Despite ample evidence of the significant role that mining activities play in determining health outcomes, in India there is a dearth of comprehensive health studies that draw linkages between mining and health. The purpose of the following study is to investigate the impact of mining activities on population health in India using three different methods: ecological multivariable regression, exploratory spatial data analysis (ESDA) and content analysis of government documents using a phenomenological approach. The first aim uses the ecological multivariable regression to examine associations between mining activities and children’s malnutrition outcomes at the district level. Census data, the Demographic Health …

The Impact Of Climate Change On Selected Pnw Watersheds Through The Lens Of Western Red Cedar Habitat, Jordan T. Hamann

Dissertations and Theses

Climate change is a real phenomenon that is exacerbating existing natural processes and developing into a new normal for the planet. This change may be devastating for Pacific Northwest populations of Western Red Cedar (WRC) west of the Cascade Mountain range in the states of Oregon and Washington. WRC is a valuable tree species for reasons both economic and cultural. Dieback among WRC is following an accelerating trend. Since dieback is usually followed by tree mortality, understanding its causes and distribution is beneficial to the overall success of the species going into the future.

Through the use of ESRI's ArcGIS …

Developing Public Service Leadership: Understanding The Field Immersion/Comparative Cases Model For Mid-Career Professional Education In Environment And Natural Resources Leadership, Erin M. Steinkruger

Dissertations and Theses

Public administrators in the United States face increasingly complex challenges and are called to leadership by position and in practice. In a hyper-pluralistic society, individuals must lead from where they sit, arbitrating value differences in day-to-day functions and taking on adversity and uncertainty in pursuit of the public good. These individuals are served by a variety of leadership training programs both internal and external to their organizations. This study characterizes the field immersion/comparative cases (FICC) model for public service leadership development and uses a grounded theory approach to build understanding about how individuals learn about leadership; what learning outcomes emerge …

Disentangling Groundwater Dynamics At Oregon's Mckenzie River Headwaters, Taylor Nicole Salazar

Dissertations and Theses

Widespread mountain snowpack declines have been occurring across the western United States over the last century, and are increasing in duration and severity, with several record-breaking low-snowpack years in the last decade. In the Pacific Northwest, summer streamflow is largely a result of melting snow and groundwater discharge, as summers are typically dry and warm in this Mediterranean bioclimate, thus making spring-fed rivers critical for regional water resources. However, current trends and predictions in hydroclimate modeling indicate spring-fed rivers will experience reduced summer discharge driven by the increasingly larger impact of anthropogenic climate change (warming) on (decreased) mountain snowpack. A …

Radical Urban Natures: Mitigating Urban Heat With Nature-Based Techniques In Portland, Oregon, Heather Day-Melgar

Dissertations and Theses

Anthropogenic rising heat associated with climatic changes in the built environment has become a serious global issue. The built environment is often comprised of impermeable, paved surfaces, lack of vegetation to make way for development, tree removal, and loss or alteration of urban waterways, which leads to a degraded ecosystem for humans and non-human life, and less of an ability for carbon capture, all of which contribute to higher urban temperatures. This alteration of the existing natural environment leads to populations often unable to conceptualize that a built environment is still an ecosystem, and restoration is possible and necessary for …

Participatory Mapping Of Tree Equity, Preferences, And Environmental Justice In Portland, Or, Katharine Vezin Gregory

Dissertations and Theses

Studies have shown that marginalized communities do not have the same access as more privileged groups to urban tree canopy cover due to historic and current processes of discrimination and disinvestment. This study explores the lived experiences, narratives, and values related to trees and greenspaces for residents of Portland, OR, through participatory mapping focus groups. It uses an environmental justice and urban political ecology framework to examine how values, lived experiences, and narratives compare for Portland residents across neighborhoods, socio-economic status, and racial or ethnic identity and how the changes that matter to residents can inform more just urban greening …

Who Puts The "Support" In Supportive Housing? The Impact Of Housing Staff On Resident's Well-Being, And The Potential Moderating Role Of Self-Determination, Kenna Estell Dickard

Dissertations and Theses

The provision of residential and community-based services for individuals with serious mental illness (SMI) has become increasingly important following the deinstitutionalization movement. Much of the existing research on supportive housing focuses on housing outcomes rather than exploring how the program helps its residents thrive in the broader community. This study draws upon data collected from 176 people with SMI residing in 16 supportive housing locations in Portland, Oregon. Analyses employed an ecological approach, exploring how housing staff support relates to residents' well-being at three levels of analysis: loneliness (interpersonal level), residential satisfaction (housing and neighborhood level), and sense of community …

An Integrated Analysis Of Urban Sustainability In Portland: Issues, Indicators, Stakeholders, And Geospatial Assessment, Arun Kumar Pallathadka

Dissertations and Theses

This dissertation presents three individual studies that collectively explore the concept of urban sustainability. The research is grounded in the recognition that many cities worldwide are striving to achieve sustainable development, yet existing sustainability frameworks often lack comprehensive definition and consideration. Moreover, the existing sustainability frameworks and methods are often not clearly structured to allow for their replication and adaptation to meet the unique needs of diverse local settings. To address this gap, the dissertation utilizes the Social-Ecological-Technological Framework, with particular emphasis on equity, to investigate key issues in urban sustainability, such as indicators, stakeholder engagement, tradeoffs, and assessment. The …

Inequalities In Infant Birthweight By Social Position And Residential Neighborhood Characteristics In New York City, 2012-2018, Christina I. Nieves

Dissertations and Theses

BACKGROUND: Birthweight is an important indicator of health for infants, as low birthweight is associated with adverse health outcomes for infants and children. In the United States (U.S.), there are significant birthweight inequities by several maternal characteristics including maternal race/ethnicity, age, education, and nativity status. For example, the prevalence of low birthweight among Black infants is double the prevalence among white infants (14% vs. 6.9%, respectively). These health inequities are caused, in part, by unjust systems, policies, and practices rooted in interlocking systems of oppression, like racism. These systems of oppression affect individuals directly as well as the contexts in …

Kurdish Filmmaking In Turkey: History And Narratives, Omar Sadik

Dissertations and Theses

This research investigates the history and politics of cultural production by examining Kurdish filmmaking in Turkey. Sadik provide an analysis of contemporary films and filmmakers to explore how Kurdish cinema in Turkey is situated in broader, global political-economic structures. By examining this important case through the lens of history and memory, Sadik clarify how production and aesthetics in Kurdish cinema point to important systemic processes. Sadik uses three main research strategies in this study: a historical survey of Kurds in Turkey, an analysis of ten semi-structured interviews with contemporary Kurdish directors and an analysis of films directed by Kurdish filmmakers …

Stories Of Midwest Higher Education Public Safety Administrators, The Clery Act, And Keeping Campuses Safe, Bryant Jackson

Dissertations and Theses

The purpose of this narrative inquiry qualitative analysis study is to examine the lived experiences of Midwest higher education public safety administrators regarding the Clery Act. Since 1990 when the Clery Act became law, higher education public safety administrators have been required to implement this law at their institutions. While research on the Clery Act has been limited, it is critical to examine the lived experiences of those tasked with its implementation and compliance. Three themes were identified when examining the lived experiences of the Midwest public safety administrators experiences with the Clery Act. The first theme explored overall impressions …

Disconnected, Frustrated And Withdrawn: Institutional Policy Implications For Equity In Student And Faculty Community, Jessica Marie Welsh

Dissertations and Theses

DFW rates at intuitions of higher education for students from underrepresented populations trended higher than majority students. A single explanatory case study provides insight to the factors impacting DFW rates in first-year gateway courses at a four-year, public, comprehensive institution. The study employed the use of focus groups of students, non-tenure-track faculty, and tenure-track faculty. In addition, institutional data was collected and used to triangulate to the data collected from focus groups. The inductive results showed multiple institutional barriers causing DFW rates among first-generation, Pell Grant, and/or students of color. Using Turner and Angulo’s (2018) theoretical framework of high-risk decision-making …

Spectres Of Women In Wuthering Heights, Corinne H. Shearer

Dissertations and Theses

Central to Emily Brontë’s Wuthering Heights (1847) is its famous haunting scene. As this paper suggests, it is in the haunting scene that the novel’s themes are at their most potent and where Brontë is at her most daring, challenging the socially prescribed, gendered binaries of her time. The primary interest of this paper is in describing the particular power of Brontë’s feminine ghost, an archetypal figure of the female Gothic, using theoretical frameworks from poststructuralism and psychoanalysis. I propose a feminist interpretation of the novel which emphasizes the catalyzing effect of the haunting scene and its reversals– and which …

Carceral Form And Social Critique In Zadie Smith's Nw, Wesley Hackman

Dissertations and Theses

No abstract provided.

Pakistan, India And The Indus River Basin, Muquadas Ilyas

Dissertations and Theses

Water is a fundamental need of all living things. The right to clean water is classified as a human right under United Nations Resolution 64/292.As such it is the responsibility of governments to ensure its citizens are not deprived of this essential resource. In doing so, effective water management is crucial to provide clean water that is accessible to everyone regardless of any challenges such as geographical constraints or political disputes. This thesis explores the water management efforts of Pakistan and India. These countries are facing a water crisis, whereby numerous citizens have died due to dehydration and diseases contracted …

Urban Freight Transportation: The Interaction Of Home Deliveries In Cities, Carla A. Tejada

Dissertations and Theses

The movement of freight in urban areas is a key factor in the sustainable development of cities. If managed correctly, it can potentiate economic growth and support urban lifestyles. Nevertheless, the movement of goods in cities is usually in conflict with other urban flows and is generally perceived as having more negative externalities, above all for environmental and social sustainability. While the first focuses on measuring the impact on the environment, the latter focuses on measuring the impacts of business decisions on people. The main goal of this dissertation is to study the relationship that urban goods movements, mainly residential …

Most Recent Rupture On The Boulder Creek Fault Triggered Bedrock Landsliding In The Nooksack Watershed, Whatcom County, Washington, Abigail Catherine Underwood

Dissertations and Theses

Catastrophic bedrock landslides with volumes ranging from 10⁶ to 10⁸ m³ contribute to rapid landscape evolution, often resulting in erosion rates that exceed the long-term average rates caused by tectonic uplift. Understanding the spatiotemporal trends of large bedrock landslides helps us understand previous drivers of landscape evolution as well as predict how the landscape will respond in the future. The Nooksack Watershed, Whatcom County, Washington, is particularly susceptible to large slope failures because of its high relief, seismic activity, local geology, and relatively abundant precipitation. Specifically, folded and faulted bedrock structures conducive to landsliding in addition to …

Urban Nesting Biology, Population Viability And Ecology Of The Willow Flycatcher, Empidonax Traillii, Stephanie Alexandra Byrne Doorly

Dissertations and Theses

Reproductive success, in any species, relies both on the habitat utilized to reproduce and on the successful reproductive output of individual animals within a population. Populations in turn rely on the reproductive fitness of the individual. Whether populations remain stable, grow, or decline ultimately relies on the combined reproductive output of the individuals within that population.

We studied the Willow Flycatcher (Empidonax traillii; henceforth WIFL), a well-studied Neartic-Neotropical migrant passerine whose breeding range extends from the east to west coast of North America. Across much of their range, and in particular in the western regions, breeding population are …

Short Warm-Side Wet-Bulb Temperature Distribution Tails Lead To Accelerated Increases In Extreme Threshold Exceedances Under Global Warming, Yianna Sotirios Bekris

Dissertations and Theses

Humid-heat extremes threaten human health and are increasing in frequency with global warming, so elucidating factors affecting their rate of change is critical. This thesis examines the role of historical (1985-2014) wet-bulb temperature distribution tail shape on the probability of wet-bulb temperature extreme threshold exceedances under 2°Celsius global warming. Analysis of global climate models and reanalysis reveals that non-Gaussian wet-bulb temperature distribution tails are common worldwide across extensive, spatially coherent regions. More rapid increases in the number of days exceeding the historical 95th percentile are projected in locations with shorter-than-Gaussian warm-side tails. Of the two primary components of wet-bulb temperature, …

An Assessment Model Of The Healthcare Entrepreneurship Ecosystem To Foster Solutions For Underserved Communities, Abdalilah Saleh Owaishiz

Dissertations and Theses

There are significant disparities in access to healthcare treatment and this study investigates the healthcare entrepreneurship ecosystem and the challenges and considerations associated within. There is a lack of research on how to evaluate and assess the healthcare entrepreneurship ecosystem especially when applying multi-criteria decision-making (MCDM) methods. The Hierarchical Decision Model (HDM) has been utilized to identify several perspectives and factors grouped under them by the expert’s quantification. This research concentrates on underserved communities because that is where the biggest needs and impact can be made to support achieving health equity and universal health coverage. The findings of this research …

Understanding Distruptive Change In Health Care: Perspectives From The Front Lines Of Covid, Wendy Vaughon

Dissertations and Theses

COVID-19 dramatically stressed an already overburdened healthcare system. Physicians, susceptible to burnout, bore the brunt of this threat as frontline providers. Limited data are available describing how the pandemic may have affected physician perceptions and beliefs, including experiences of burnout and plans to exit the field. Reddit, a social media website, allows physicians the ability to interact with their peers pseudonymously on a purpose-driven, publicly viewable subreddit (r/medicine). By providing a space for “physicians and other medical professionals” to interact, it is possible to observe unfiltered discourse.

This dissertation explores physician-peer discourse on Reddit prior to and during the COVID-19 …

Spatial Analysis Of Burn Severity And Streamflow Response In The Western Conus, Will Brendan Long

Dissertations and Theses

Wildfire increases the magnitude of runoff in catchments, which can lead to the degradation of ecosystems, risk to infrastructure, and loss of life. The Labor Day Fires of 2020 provided an opportunity to compare multiple large and severe wildfires with the objective of determining potential changes to hydrologic processes in Oregon Cascades watersheds. Geographic information systems (GIS) were implemented to determine the total percentage burned and percentage of high burn severity class of six watersheds on the west-slope of the Oregon Cascade Range. In addition, two control watersheds were included to contrast the influence of climatic effects. Spatial arrangement of …

Reconceiving The Relationship Between The Built Environment And Walking Behavior: Examining The Samples, Scales, And Methods In Travel Behavior Research, Jaime Pablo Orrego-Oñate

Dissertations and Theses

This dissertation aims to formulate a mechanism for the relationship between the urban form and walking choice that can be consistent across contexts. The motivation is the lack of concordant results in the magnitude of the environmental influence on walking choice in urban areas found in the literature. The dissertation identifies a series of limitations in previous research that could cause mixed results in the magnitudes of the association. This research elaborates an approach to overcome these limitations by proposing a mechanism of the activity density over walking modal share by controlling for trip distance distribution. The aim is an …

Examining Emergency Citizen Response To The Covid-19 Pandemic: Emergent Groups Addressing Food Insecurity In Portland, Oregon, Aliza Ruth Tuttle

Dissertations and Theses

Emergency response agencies commonly focus on how hard infrastructure will interact with extreme climatic and geologic events: bridges during an earthquake and buildings following a tornado, for example. Peoples' actual experience of these extreme events vary, however, based on socially constructed consequences of natural hazard events and their interaction with a depleted or robust social safety net.

Previous research shows people living with depleted social safety nets and who experience a natural hazard event are likely to help where they see disaster. Individuals consistently form groups, called emergent groups, to organize their efforts. This research explored emergent groups that formed …

Arbuscular Mycorrhizal Fungi Colonization Response To Dike Removal In The Salmon River Estuary, Elinore Webb

Dissertations and Theses

Arbuscular mycorrhizal fungi (AMF) form symbiotic relationships with wetland plants and are important to the restoration of coastal estuaries. The purpose of this study was to assess the presence and colonization of arbuscular mycorrhizal fungi in Distichlis spicata from three formerly diked areas of the Salmon River Estuary to determine an initial understanding of the mycorrhizal community in tidal wetlands post-restoration. AMF were present in all four sample areas and total colonization ranged on average 39-72%. The reference site had the lowest levels of total colonization, which is contrary to the findings of studies of younger wetland restorations. Most importantly, …

Efficiency In The Upper Deschutes Basin: Understanding The Hydrosocial Implications Of Irrigation Canal Piping, Rebecca Anderson

Dissertations and Theses

In response to water scarcity, irrigation efficiency projects aim to conserve water for in-stream flow and agricultural use. Piping irrigation canals is a common irrigation efficiency method which reduces the loss of incidental recharge, resulting in trade-offs within a hydrosocial system. Few studies have focused on the consequences of canal piping and none have integrated a critical analysis of the social factors involved in deciding what constitutes 'efficient' water use. This study seeks to fill this gap by combining natural and social science to give attention to the scales and perspectives involved in irrigation efficiency canal piping and the material …

Erasure Through Engagement: The Community Resettlement Of Isle De Jean Charles, Meghan Elizabeth Sullivan

Dissertations and Theses

The State of Louisiana and the national media have claimed that the community resettlement of Isle de Jean Charles (IDJC) is an example of a 'model resettlement' for communities experiencing the impacts of climate change. At the outset, the project was advocated and led by the tribal leadership of the Isle de Jean Charles Band of the Biloxi-Chitimacha-Choctaw Tribe. Although, through the course of the resettlement the supposed partnership between the State of Louisiana and the Tribe has dissolved. This study seeks to provide a robust and in-depth understanding of the planning and implementation process of the IDJC resettlement to …