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Hypertension And Hiv In An Urban Slum Setting, Port-Au-Prince, Haiti, Olga Tymejczyk

Dissertations and Theses

Background: Rapidly growing urban slum settings increasingly face co-occurring communicable and non-communicable health crises, against the backdrop of extreme poverty, and social and environmental vulnerability. In Haiti, sparse data suggest a growing burden of hypertension and cardiovascular disease (CVD), along with substantial prevalence of HIV, increasingly recognized as a major CVD risk factor. As life-saving antiretroviral treatment (ART) is extended to more people living with HIV (PLWH), their risk of CVD increases with longer life expectancy and possibly cumulative ART exposure. Pregnant HIV-positive women may face additional cardiovascular vulnerability, due to the risk of gestational hypertension and pre-eclampsia. Integration of …

The Impact Of Integrating Traditional Ecological Knowledge In Summer Camps On Middle School Students' Understanding Of The Nature Of Science, SapoóQ'Is WiíIt'es Ciarra Solina Greene

Dissertations and Theses

The Nature of Science (NOS) and traditional ecological knowledge (TEK) have commonalities in the knowledge bases: they are both ways of explaining the natural world; founded on a set of practices and the historical accumulation of knowledge; and part of the education is learning practices and developing knowledge of the concepts that are foundational to the disciplines. Throughout the United States, schools are attempting to strengthen students' understanding of NOS through various approaches, although few have adopted the integration of TEK into curriculum. This research assesses two summer camps for middle school students that are science focused, one with TEK …

Extreme Obesity Among Adults In The United States: Spatial Variation And The Association With Mortality, Carrie Mills

Dissertations and Theses

Objectives: The purpose of this dissertation was to create small area estimates to describe and explore the county-level spatial variation of extreme obesity among adults in the United States and to assess the county-level association and spatial variation of extreme obesity and mortality.

Methods: The Behavioral Risk Factor Surveillance System was used in conjunction with data from the Census Bureau to estimate county-level model-predicted prevalence of extreme obesity using multilevel regression and poststratification. Spatial dependence of estimates was assessed using global Moran’s Index, and local Moran’s Indices were used to identify clusters of higher and lower rates of extreme obesity …

Connecting Local-Scale Heavy Precipitation To Large-Scale Meteorological Patterns Over Portland, Oregon Using Observations And Climate Models, Christina Marie Aragon

Dissertations and Theses

Precipitation timing and magnitude is essential to human, ecological, and economic systems. Climate change may be altering the character of precipitation locally to globally, thus it is vital that resource managers, practitioners, and decision makers understand the nature of this change. This thesis was conducted in partnership with the City of Portland Bureau of Environmental Services (BES), and the Portland Water Bureau (PWB) in order to support resiliency planning around precipitation and precipitation extremes.

This work has two primary phases, which are discussed in chapter 2 and 3 of this thesis. The first phase of this research entails characterization of …

Concrete Bridge Deck Performance Data And Metrics For The State Of Oregon, Jael Wettach-Glosser

Dissertations and Theses

Bridge decks are a critical element of a bridge that support and distribute vehicle loads to the superstructure. Because of the requirements of this role, bridge decks are exposed to severe conditions that typically lead to structural deficiency in bridges which is both costly and disruptive. Therefore, to keep bridges and highways in good repair, developing optimal preservation decisions for concrete bridge decks is key. In order to develop effective performance monitoring and preservation schedules, the parameters affecting bridge deck deterioration need to be better understood.

With guidance from the literature and Oregon Department of Transportation (ODOT) personnel, two datasets …

Manufacturing In Place: Industrial Preservation In The Us, Jamaal William Green

Dissertations and Theses

In the face of growing economic inequality and population growth, several large cities in the US have started to proactively protect vital industrial lands from conversion to non-industrial uses. These new policies signal a potentially dramatic shift in both land-use and economic development practices.

In the first essay of this dissertation I present a typology of existing industrial land protective policies after reviewing the comprehensive plans and zoning codes of the United States' fifty largest cities. I identify 11 cities with protective policies and highlight the variance of these policies by offering a simple two part typology based upon a …

The Cosmological Empire Of Pliny The Elder: An Examination Of Political Themes In The Second Book Of The Historia Naturalis, Kevin Alan Mccormick

Dissertations and Theses

Pliny the Elder's Historia Naturalis, written in the 70s CE and perhaps left unfinished at its author's death in 79, is among the largest documents to have survived down to us from antiquity. It comprises some thirty-seven books on a breadth of topics about the natural world, and man's interaction with the world and marshalling of its resources. The work has often been referred to as the world's first encyclopedia. Recent scholarship has rescued Pliny's reputation from its degradation among the scholars of the early twentieth century, and modern scholars have approached the document via several analytical avenues, including …

Annual And Seasonal Variation In Hydrologic Performance Of Ecoroofs Of Multiple Depths, Portland, Or, Ashley Michelle Baker

Dissertations and Theses

It is essential that cities adopt new approaches to stormwater management in the face of changing precipitation regime. In some locations, ecoroofs have been incorporated into city plans as a stormwater control measure, and thus their real-world performance under current conditions can assist with adequate planning. In this study rainfall retention data collected during a three year period, between 2014-2017, is analyzed for 75mm and 125mm ecoroof plots in Portland, Oregon, USA. There is no difference in annual rainfall retention performance between the shallower and deeper plots. However, the 36% mean annual retention of the ecoroof plots is a significant …

Understanding The Politicization Of Oromo Identity In The Diaspora: Re/ Locating The Bones Of The Oromo, Madeline Jaye Bass

Dissertations and Theses

The Oromo people of Ethiopia share a common language, worldview, set of sacred meanings, and a historic system of governance. The rise of the Abyssinian Empire in the late 1800s led to the colonization of the Oromo; their language and religion were made illegal, their homeland was expropriated and renamed, and they were forced to live as slaves on their own land. After the end of the Abyssinian colonial era, historic discrimination was institutionalized into the new Ethiopian state form through the politicization of identities. Ethnic identities become political identities when cultural traits are used by the state as criteria …

Relationship Between Empathy And Language Proficiency In Adult Language Learners, Mika Sakai

Dissertations and Theses

This study reviews concepts and the mechanism of empathy, and the relationship between empathy and language proficiency, focusing on the aspect of cognitive empathy. It also discusses whether empathy levels could be developed by learning language to a highly proficient level. I compared the empathy levels between high and low proficiency second-language learners to determine if there was correlation between empathy and other factors such as gender, studying abroad, education background, and usage of a second language. I found that there was no relationship between empathy level and language proficiency level; however, there was one between empathy and gender. For …

An Examination Of Non-Waged Labor And Local Food Movement Growth In The Southern Appalachians, Amy Kathryn Marion

Dissertations and Theses

Farmers have traditionally depended on their families or paid employees to cover their extensive labor needs. Today, non-waged labor models are gaining popularity, especially among small, ecologically-oriented farms. Apprenticeships and internships can be a primary form of training for a population of new and beginning farmers, many of whom are entering the field without farming backgrounds. However, many question the sustainability and justness of these arrangements. As a new phenomenon, very little research examines the relationship between non-waged labor models like agricultural apprenticeships and alternative food movements. In this exploratory study, the author surveyed nearly 250 farmers growing for local …

Spatial Analysis Of Burglary And Robbery Crime Concentration Near Mass-Transit In Portland, Bryce Edward Barthuly

Dissertations and Theses

The relationship between mass-transit and the concentration of burglary and robbery crimes is inconsistent within the available literature in environmental criminology. A number of studies have provided evidence of crime concentration at and near mass transit locations where paths intersect, referred to as a node. These empirical studies bring in environmental criminology theory with the idea that crime is clustered, and the pattern of the concentrations is substantially influenced by how and why people travel and move in a city. It is suggested that public transit allows for a large proportion of the population to move around the community along …

Politics In The San Clemente Dam Removal, Aylan Matthew Lee

Dissertations and Theses

This study examines the role of politics in the removal of the 106-foot tall San Clemente Dam. The removal project and negotiations provide a case study of the contemporary phenomenon of dam removal. My analysis joins a growing body of social science literature on the social, political, and human dimensions of removal. The San Clemente Dam, which impounded the Carmel River near Monterey, California, was removed in 2015, the largest such project completed in California. Drawing on political ecology and science and technology studies, and using a mixed qualitative approach, I assess both the role of politics in shaping the …

Forest Structure, Composition, And Regeneration After High-Severity And Rapidly Repeated Wildfires In The Central Cascade Range, Sebastian Upton Busby

Dissertations and Theses

Within mid-to-high elevation conifer forests in the Cascade Range, wildfire extent, severity, and frequency are expected to rise due to increasingly drier forest fuels under climate change. Considering dominant species composition, existing forests may be poorly adapted to absorb stress and recover following altered wildfire patterns. We tested the hypothesis that increased fire activity may disrupt the recovery of upper-montane and subalpine forest types by quantifying post-fire forest structure and conifer regeneration after spatially large, severe, and rapidly repeated wildfires in the Central Cascade Range. A stratified random sampling design was used to select field plots (n=122) and drivers of …

Hydrologic Trends And Spatial Relationships Of Stream Temperature And Discharge In Urbanizing Watersheds In The Portland Metropolitan Area Of The Pacific Northwest, Emma Lee Brenneman

Dissertations and Theses

This study explores various relationships of streamflow and stream temperature over the Portland Metropolitan area in two urbanizing watersheds. Four stream temperature and discharge metrics were derived from USGS stream gauges in the Tualatin River and Johnson Creek watersheds and were analyzed for monotonic trends. Additionally, this study explored the sensitivity of stream temperature to air temperature and streamflow to assess where locations throughout the watershed may be more sensitive to these changes. Relationships among stream temperature, air temperature, and streamflow were assessed using linear and nonlinear bivariate regression for yearly values and summer months. Additionally, this study seeks to …

Evaluating Project Assessment Techniques For High-Profile Transportation Projects Development And Delivery: Case Of State Departments Of Transportation (Dots) In The United States, Rafaa Ibrahim Khalifa

Dissertations and Theses

Time delays and cost overruns in construction projects are generally due to factors such as inappropriate planning, design errors, unexpected site conditions, inadvisable tools selection, change scope, weather conditions, lack of resources, and other project changes. Time delays and cost overruns are of concern to most project managers, owners, and governments. These elements of time and cost are two of the critical defects that impact the construction project delivery. These defects can lead to project failures and to various negative issues like increasing in disagreements among the project team, the contractor, suppliers, and the owner.

State Departments of Transportation (DOTs) …

Dynamics Of Wet-Season Turbidity In Relations To Precipitation, Discharge, And Land Cover In Three Urbanizing Watersheds, Oregon, Junjie Chen

Dissertations and Theses

Frequent intense precipitation events can mobilize and carry sediment and pollutants into rivers, degrading water quality. However, how seasonal rainfall and land cover affect the complex relationship between discharge and turbidity in urban watersheds is still under investigation. Using hourly discharge, rainfall, and turbidity data collected from six stations in three adjacent watersheds between 2008 and 2017, we examined the temporal variability of the discharge-turbidity relationship along an urban-rural gradient. We quantified hysteresis between normalized discharge and turbidity by a Hysteresis Index (HI) and classified hysteresis loops during 377 storm events in early, mid, and late wet season. Hysteresis loop …

Tree Canopy Cover And Potential In Portland, Or: A Spatial Analysis Of The Urban Forest And Capacity For Growth, Jeff Ramsey

Dissertations and Theses

Urban forests have positive impacts on human and ecosystem health, reduce stress on aging stormwater infrastructure, increase property values, and reduce energy consumption. The scale of these benefits ranges from the hyper-local to the global. While the benefits of urban forests can extend well beyond the boundaries of cities, they often do not reach all residents of the city equally. Urban forest policies do not adequately address environmental equity or employ planting strategies with knowledge of the social and political factors that determine the spatial variations of tree canopy extent in cities. Chapter I analyzes the determinants of current canopy …

Making Imaginaries: Identity, Value, And Place In The Maker Movement In Detroit And Portland, Stephen Joseph Marotta

Dissertations and Theses

This dissertation explores the maker economy and culture in Detroit, MI and Portland, OR and queries the "Made in Place" branding strategy that relies so heavily on a shared imagination of cities, identities, and values. Bridging the gap between urban economic development, political economy, and affect theory, this dissertation is centrally concerned with how imagination works as a commons and how such "imaginaries" shape each city's milieu of small, entrepreneurial, artisanal producers ("makers"). The constituent elements of "Made in" branding "made" and "place" suggest common understandings of each; this sense of coherence is critical for how value is added to …

Learning From Culturally Specific Programs And Their Impact On Latino Parent Engagement, Analucia Lopezrevoredo

Dissertations and Theses

Latinos are the largest and fastest growing ethnic minority group in the United States. Academically, they are significantly trailing their non-Latino peers in graduation and overall educational attainment. Among many socioeconomic factors, parent engagement has been identified as being a defining indicator of student success. Reflective of racial and class disparities, this study explored with the use of critical race and intersectionality theory, that low Latino parent engagement is a result of the historical devaluing and omission of Latino culture, history and language from formal academic settings, and compounding social factors that make engagement complex for Latino immigrants in America …

Closing The Loop: The Capacities And Constraints Of Information And Communication Technologies For Development (Ict4d), Phillip Nicholas Turman-Bryant

Dissertations and Theses

As a mechanism for collecting and sharing information, information and communications technologies (ICT) hold immense potential for individuals and institutions in low- and middle-income countries. Currently the distribution and adoption of ICTs--particularly mobile devices--has far outpaced the provision of other household services like clean water, sanitation, hygiene, or energy services. At the same time, the development and deployment of Internet of Things (IoT) devices including cellular- and satellite-connected sensors is facilitating more rapid feedback from remote regions where basic services are most limited. When used in conjunction with economic development or public health interventions, these devices and the feedback they …

Examining Human Behavior And Tool Use Through Experimental Replications And A Technological Analysis Of Ground Stone In The Lower Columbia, Kelley Prince Martinez

Dissertations and Theses

While ground stone tools represent diverse activities, the technology is analyzed at a coarse level in the Pacific Northwest. Conducting more detailed analyses of ground stone assemblages can inform on regional Indigenous raw material knowledge, resource use, and tool manufacturing and maintenance practices.

In this thesis I addressed questions regarding ground stone technology, including manufacturing time investments, tool recycling, and how ground stone tools were used through the application of experimental tool replication, use studies, and in depth analyses. I replicated tools that are common in the region, including a banded and notched net weight, a maul, two bowls, and …

Can Churches Change A Neighborhood? A Census Tract, Multilevel Analysis Of Churches And Neighborhood Change, David E. Kresta

Dissertations and Theses

This study examines the role of local churches in neighborhood change, analyzing the relationship between Christian churches and changes in household median incomes from 1990 to 2010 in the census tract in which each church is located. Based on a nationally representative sample of churches from 2006 and 2012, the study uses hierarchical linear modeling and statistical matching techniques to analyze how key church characteristics such as social service involvement, social capital generation, residential patterns of attendees, and demographic composition are related to changes in neighborhoods. Two primary research questions were addressed: 1) How have patterns of church location changed …

Gentrification And Student Achievement: A Quantitative Analysis Of Student Performance On Standardized Tests In Portland's Gentrifying Neighborhoods, Justin Joseph Ward

Dissertations and Theses

Across the United States one would be hard pressed to find an urban center that has been unaffected by the phenomenon known as gentrification. From substantial economic growth to the displacement of long-term residents, the benefits and criticisms of the process of gentrification are wide ranging and extend over a thorough body of literature. Commonly associated with increasing levels of education and higher resident incomes, gentrification should be a boon to struggling public schools that are continually plagued by generational poverty. Unfortunately, the continued widening of the education gap and increasing racial segregation in our public schools suggest that any …

"The Most Difficult Vote": Post-Roe Abortion Politics In Oregon, 1973-2001, Tanya Trangia Monthey

Dissertations and Theses

The abortion debate in the United States has come to split the contemporary electorate among party lines. Since the late 1970s, the Republican Party has taken a stand against abortion and has worked through various routes of legislation to pass restrictions on access to the procedure. Oregon however, provides a different interpretation of this partisan debate. Though Oregon has seen both Republican and Democratic leadership in all houses of state government and pro-life conservative groups have lobbied to restrict the procedure, no abortion restriction has been passed in the state since the United States Supreme Court invalidated many state abortion …

Lidar Predictive Modeling Of Kalapuya Mound Sites In The Calapooia Watershed, Oregon, Tia Rachelle Cody

Dissertations and Theses

Archaeologists grapple with the problematic nature of archaeological discovery. Certain types of sites are difficult to see even in the best environmental conditions (e.g., low-density lithic scatters) and performing traditional archaeological survey is challenging in some environments, such as the dense temperate rain forests of the Pacific Northwest. Archaeologists need another method of survey to assess large areas and overcome environmental and archaeological barriers to site discovery in regions like the Pacific Northwest. LiDAR (light detection and ranging) technology, a method for digitally clearing away swaths of vegetation and surveying the landscape, is one possible solution to some of these …

Stratospheric Polar Vortex Variability In The Northern Hemisphere: The Effects Of Climate Change On Polar Vortex Trends And Future Projections, John Earl Rogers

Dissertations and Theses

Regions that have experienced recent successive cold winters such as the Northeast of North America and Siberia have endured critical social and economic impacts from anomalous low temperatures in recent years, despite warming global temperatures. It is well known that the Tropospheric Polar Vortex (TPV), or jet stream, is a primary influence on many mid-latitude winter weather patterns. However, the strong circumpolar westerlies that maximize at around 60° latitude just above the tropopause, known as the Stratospheric Polar Vortex (SPV), can affect tropospheric circulation and thus winter weather in the Northern Hemisphere. Strong upward propagating waves can affect the geographic …

Recognizing And Addressing Risk Ambiguity In Sea Level Rise Adaptation Planning: A Case Study Of Miami-Dade County, Florida, Mary Ann Rozance

Dissertations and Theses

As coastal cities around the world identify and implement adaptations to sea level rise, they are faced with competing interests around what should be done and how to prioritize actions. Often, environmental problems--like confronting the challenge of sea level rise--are posed as requiring expert driven, technical solutions to identify and mitigate risks across the landscape. This framing, however, ignores the way in which diverse knowledge can help inform long-term planning horizons that address complex ways that sea level rise affects communities. The failure to integrate diverse knowledge into sea level rise adaptation can result in barriers to implementation and outcomes …

Evaluating The Impact And Distribution Of Stormwater Green Infrastructure On Watershed Outflow, Benjamin Fahy

Dissertations and Theses

Green Stormwater Infrastructure (GSI) has become a popular method for flood mitigation as it can prevent runoff from entering streams during heavy precipitation. In this study, a recently developed neighborhood in Gresham, Oregon hosts a comparison of various GSI projects on runoff dynamics. The study site includes dispersed GSI (rain gardens, retention chambers, green streets) and centralized GSI (bioswales, detention ponds, detention pipes). For the 2017-2018 water year, hourly rainfall and observed discharge data is used to calibrate the EPA's Stormwater Management Model to simulate rainfall-runoff dynamics, achieving a Nash-Sutcliffe efficiency of 0.75 and Probability Bias statistic of 3.3%. A …

Child Psychological Maltreatment, Alison Boughn

Dissertations and Theses

Child psychological maltreatment (PM) is challenging to define and difficult for a child to articulate. This study introduces the development and initial implementation of the Psychological Maltreatment Inventory (PMI) with child participants. The PMI consists of 16 items validated by subject matter experts. The pilot study sample (N = 21) and large sample (N = 166) consisted of child participants currently involved in open child maltreatment cases at a Child Advocacy Center (CAC) in the Midwest. Quantitative research was used to explore the descriptive characteristics of the PMI to participant demographic information and correlational design to explore the relationship between …