Social and Behavioral Sciences Commons^™

Socio-Spatial Transformation And Contested Space At The Street Level In Latin America: The Case Of Cali, Colombia, Maria Janeth Mosquera Becerra

Dissertations and Theses

Since 2008, more than 50% of the world's population has lived in cities and it is projected that by 2050 around 87% will do so. Designing infrastructure in urban spaces has become increasingly critical for achieving human well-being. This dissertation examines socio-spatial transformation processes related to urbanization, economic development and the marginalization of utilitarian cycling in Cali, Colombia, as a particular expression of the struggle for transportation space occurring in urban areas. The research analyzes (a) the socio-spatial processes that have restricted the use of bicycles as a means of transportation in the city of Cali, Colombia; and (b) the …

Using Gist Features To Constrain Search In Object Detection, Joanna Browne Solmon

Dissertations and Theses

This thesis investigates the application of GIST features [13] to the problem of object detection in images. Object detection refers to locating instances of a given object category in an image. It is contrasted with object recognition, which simply decides whether an image contains an object, regardless of the object's location in the image.

In much of computer vision literature, object detection uses a "sliding window" approach to finding objects in an image. This requires moving various sizes of windows across an image and running a trained classifier on the visual features of each window. This brute force method can …

Gender And Prescription Painkiller Misuse: Findings From The 2011 National Survey On Drug Use And Health, Robin Jo Clough

Dissertations and Theses

This study examines the effects of gender and social bonds on the experience of prescription painkiller misuse for men and women. The theoretical framework for the project is Travis Hirschi's social control theory (1969), and the social bond elements of attachment, commitment, involvement, and belief, which emphasizes the importance of these bonds in creating a "stake in conformity" for the individual, leading to acceptance of social norms and desistence from deviance. This theory, however, is relatively silent with regard to gender differences and was developed to examine delinquency in an all male sample of adolescents. The elements of this theory …

Emerging Lexical Organization From Intentional Vocabulary Learning, Adam Jones

Dissertations and Theses

The role that vocabulary learning plays in second language acquisition has been receiving increased attention from both teachers and researchers. However, there is still much that is not known about the processes through which new words become functioning components of the mental lexicon. This study used a word association test (WAT) to investigate how new words are initially integrated into the lexicon immediately after being studied for the first time. This initial lexical organization of new words was compared with the existing lexical organization of well-known items. In addition, this study investigated how sentence writing, thought to encourage deeper levels …

Cross-Cutting Concerns: The Varying Effects Of Partisan Cues In The Context Of Social Networks, Benjamin King Smith

Dissertations and Theses

The theory of motivated reasoning predicts that partisan cues in the media will affect political attitudes, by encouraging individuals to align their views with those of their party's elites. The effect has primarily been tested by looking at issues which have pre-established partisan positions (e.g. immigration reform, gay rights, etc.). This study looks at the effects of partisan cues in the media on attitudes toward a non-partisan issue, the NSA's collection of American's meta-data. Additionally, the study extends research on partisan cues by exploring the moderating role of an individual's political communication network and, specifically, exposure to cross-cutting political communication. …

Determinants Of Recent Mover Non-Work Travel Mode Choice, Arlie Steven Adkins

Dissertations and Theses

Active transportation modes of walking and bicycling have the potential to help mitigate environmental and health concerns ranging from growing greenhouse gas emissions to increasing rates of obesity. This dissertation investigates how new movers make decisions about active transportation, particularly non-work utilitarian walking, in the context of a new home and neighborhood. New movers are an important, yet often overlooked, population in travel behavior research because they provide an opportunity to observe behavior adoption in new contexts, but also because the roughly one-in-ten Americans who move each year are more likely to consider changes to daily routines, including travel behavior, …

Synthesizing The Vertical And The Horizontal: A World-Ecological Analysis Of 'The Industrial Revolution', Part I, Christopher R. Cox

Dissertations and Theses

'The Industrial Revolution' is simultaneously one of the most under-examined and overly-simplified concepts in all of social science. One of the ways it is highly under-examined is in the arena of the ecological, particularly through the lens of critical world-history. This paper attempts to analyze the phenomenon through the lens of the world-ecology synthesis, in three distinct phases: First, the history of the conceptualization of the Industrial Revolution is examined at length, paying special attention to the knowledge foundations that determine these conceptualizations. Secondly, I sift out what I believe is the dominant model throughout most of modern …

Racism, Heterosexism, Depression, And Hiv Risk Behaviors Of Native Men Who Have Sex With Men: Findings From The Honor Project, Matthew Alan Town

Dissertations and Theses

Racial minority men who have sex with men (MSM) experience greater levels of discrimination and higher rates of HIV infection. However, little is known about the associations between racial and heterosexist discrimination and HIV risk behavior. Further, little is known about the mechanisms of the association between racial and heterosexist discrimination and HIV risk behavior. There is some evidence to suggest that depression may be a mechanism that mediates the relationship between racial and heterosexist discrimination and HIV risk behavior. Thus, one purpose of this study was to investigate the extent to which discrimination based on both race and sexual …

Social Networks Of Intimate Partner Violence Perpetrators, Wendy Elaine Viola

Dissertations and Theses

Empirical research in the areas of substance abuse (Beattie & Longabaugh, 1997; Beattie & Longabaugh, 1999; Falkin & Strauss, 2002; Gordon & Zrull, 1991; Humphreys & Noke, 1997; Mohr et al., 2001; Zywiak, Longabaugh & Wirtz, 2002) and general antisocial behavior (Browning, 2002; Capaldi, Dishion, Stoolmiller & Yoerger, 2001; Dishion, Patterson & Griesler, 1994) and a theoretical model of sexual assault perpetration (DeKeseredy & Schwartz, 1993; DeKeseredy, 1990a; DeKeseredy, 1988; Schwartz & DeKeseredy, 1997) highlight the role of peer groups' attitudes and behaviors in shaping those of their members. Intimate partner violence (IPV) among men's parents (Arriaga & Foshee, 2004; …

It's Complicated: The Role Of Facebook In Romantic Relationships Concerning Relational Certainty, Attachment, And Self-Esteem, Jenna Rae Tucker

Dissertations and Theses

Facebook is among the top used websites in the world, and research has shown that Facebook use is related to individual personality characteristics such as well-being and self-esteem. This study builds on previous research, expanding to investigate attachment-related anxiety and avoidance and relational certainty. The current study examined relationships between Facebook use (both general and for surveillance) and relational certainty, attachment-related anxiety and avoidance, and self-esteem in undergraduate students (N = 261). Online methods were used for data collection, and individuals with their relationship displayed on Facebook reported more relational certainty; however, the more time they spent on the site, …

Benevolent Racism? : The Impact Of Race And Sexual Subtype On Ambivalent Sexism, Jean Marie Mcmahon

Dissertations and Theses

How does a woman's race influence perceptions of her sexual behavior? This study investigated how race and sexual behavior intersect within an ambivalent sexism framework. Benevolent sexism characterizes women as pure and defenseless, which contrasts with the cultural stereotype of Black women as aggressive and hypersexual. Gender and racial stereotypes may combine to produce different outcomes for women who behave according to negative (promiscuous) or positive (chaste) sexual subtypes. According to shifting standards theory, evaluations and treatment of these women should vary depending on whether the measured behavior is non-zero sum (limitless) or zero sum (finite). To test this hypothesis, …

Equality, Trust And Universalism In Europe, Canada And The United States: Implications For Health Care Policy, P. Christopher Palmedo

Dissertations and Theses

A number of theoretical explanations seek to describe the factors that have led to the position of the United States as the last industrialized Western nation without a universal health care program. Theories focus on institutional arrangement, historic precedent, and the influence of the private sector and market forces. This study explores another factor: the role of underlying social values. The research examines differences in values among ten European countries, the United States and Canada, and analyzes the associations between the values that have been seen to contribute the individualism-collectivism dynamic in the United States. The hypothesis that equality and …

Beyond The Mcnair Program: A Comparative Study Of Mcnair Scholars' Understandings Of The Impacts Of Program Participation On Their Graduate School Experiences, Cristina Restad

Dissertations and Theses

The Ronald E. McNair Scholars Program is a U.S. Department of Education TRIO Program, funded at 152 institutions across the United States and Puerto Rico. In 2013, total funding reached over $35 million--of which, Portland State University received approximately $211,000 (US Department of Education, 2013). The program's goal is to introduce first-generation, low-income, under-represented group college students to effective strategies for succeeding in doctoral programs so they may become professors and create a more supportive environment for future non-traditional students. One way to explore program effectiveness beyond completion of the McNair Program is to ask the McNair Scholars themselves about …

Bumps Along The Long And Winding Road: Factors Related To Truck Driver Turnover And Job-Induced Tension, Layla Rhiannon Mansfield

Dissertations and Theses

Voluntary turnover rates among truckload carriers are extremely high, ranging from 50% to more than 100% annually (Griffin & Kalnbach, 2002), furthermore, long-haul truck drivers operate in a stressor-filled environment, which exerts enormous adverse influence not only their well-being but also on their intent to quit. This study explores the relational aspects of the driver's work environment to highlight how the relationships that a driver has with their organization, supervisor, and dispatcher can explain turnover and job-induced tension. Drawing on Social Exchange Theory, Conservation of Resources Theory, and concepts from Hirschman's (1970) theoretical framework of Exit, Voice, and Loyalty, this …

The Impact Of Economic Integration Within The European Union As A Factor In Conflict Transformation And Peace-Building, John Umo Ette

Dissertations and Theses

This study examines economic integration within the European Union (EU) as a factor in conflict transformation and peace-building. European responses to causes of frequent conflicts and wars after the end of WWII focused on the search for peace, economic cooperation and prosperity. This thesis will focus on three elements: economic interdependence, the expansion of the free market, and economic integration. In-depth examination of these factors reveals that economic interdependence or the exchange of goods and services across inter-state and international boundaries only, is not sufficient to bring peace among states. Economic inter-dependence may reduce the impact of war, but cannot …

Beyond Black And White: An Examination Of Afrocentric Facial Features And Sex In Criminal Sentencing, Amanda Mae Petersen

Dissertations and Theses

Research on race and sentencing is increasingly moving beyond racial category analyses to include more subtle attributes such as skin tone and facial features. In keeping with this progression, this research examines the extent to which convicted offenders' Afrocentric facial features interact with sex in order to create longer criminal sentences for stereotypically Black males and females. A random sample of Black and White males and females currently serving prison sentences in the state of Oregon were selected for inclusion in the study. A preliminary regression analysis was run in order to determine the effect of broad racial category on …

Implications Of Local And Regional Food Systems: Toward A New Food Economy In Portland, Oregon, Michael Mercer Mertens

Dissertations and Theses

The local food movement in the Portland Metro Region of Oregon is as prevalent as anywhere in the Country. To a large degree this is driven by the Portland Metro area food culture and the diverse agricultural landscape present in the Willamette Valley and throughout the State. Portlanders demand local food and thus far the rural periphery has been able to provide it; driving a new food economy that has economic implications throughout the region. As this regional food economy emerges much attention has been focused on harnessing its power for economic development perpetuated by the belief that there exists …

Cultivating Common Ground? A Case Study Of A Community Garden Organization In Northeast Portland, Oregon, Bryan James Zinschlag

Dissertations and Theses

When it comes to the topic of environmental sustainability, most of us will readily agree that we face a litany of local and global environmental threats in the twenty-first century. As such, we would largely agree that the need to address climate change and other issues is urgent. Where this agreement tends to end, however, is on the question of whether this urgency is so great that we need not address issues of inequality and environmental justice when organizing sustainability efforts. Some are convinced that, because sustainability efforts are "saving the world for everyone", so to speak, issues of environmental …

Participation, Information, Values, And Community Interests Within Health Impact Assessments, Nicole Iroz-Elardo

Dissertations and Theses

Health impact assessment (HIA) has emerged in the U.S. as one promising process to increase social and environmental justice through addressing health equity issues within planning. HIA practice is guided by values such as democracy and equity and grounded in broad social determinants of health. The most readily applied definition of democracy is problematic because it implies an element of direct, participatory engagement with the public. This is at odds with HIA practice that largely relies on stakeholder engagement strategies.

This dissertation critically examines the engagement strategies of three transportation planning HIA cases to more fully understand how the HIA …

Exploring Colonization And Ethnogenesis Through An Analysis Of The Flaked Glass Tools Of The Lower Columbia Chinookans And Fur Traders, Stephanie Catherine Simmons

Dissertations and Theses

At the end of the 18th century, Anglo Americans and Europeans entered the mouth of the Columbia River for the first time. There they encountered large villages of Chinookan and other Native Americans. Soon afterwards, the Chinookan People became involved in the global fur trade. Pelts, supplies, and native made goods were exchanged with fur traders, who in return provided Chinookans with a number of trade goods. Over the next 40 years, life changed greatly for the Chinookans; new trade and political alliances were created, foreign goods were introduced, and diseases killed large portions of the population (Hajda 1984; Gibson …

Stories Of Success: Understanding Academic Achievement Of Hispanic Students In Science, Amanda Harris

Dissertations and Theses

A review of the literature shows that there is much evidence to suggest the challenges facing Hispanic students in American public schools. Hispanic enrollment in K-12 public schools has increased from 6 to 19% in the last thirty years, yet schools have not made adequate adjustments to accommodate this changing population. Issues such as remedial tracking and cultural differences have led to low high school graduate rates for Hispanic students and inequities in schooling experiences (Gay, 2000). Particularly in the area of science, Hispanic students struggle with academic success (Cole & Espinoza, 2008). Despite these obstacles, some Hispanic students are …

A Girl Power Study: Looking And Listening To The Role Of Emotions And Relationality In Developing Critical Consciousness, Jennifer Wallin-Ruschman

Dissertations and Theses

The concept of critical consciousness centers on the capacity for involvement in social change efforts. Its development has been the aim of many recent social movements (e.g., the consciousness raising groups of the women's movement). In this work, critical consciousness is defined as the highest level of socio-political-cultural (SPC) consciousness development. SPC consciousness is characterized by the linking of the personal and the political so that structures and discourses of oppression are not only understood but also lead to critical action and transforming relations of domination. Additionally, critical consciousness includes the ability to tolerate ambivalence and conflict as well as …

The Values, Beliefs, And Attitudes Of Elites In Jordan Towards Political, Social, And Economic Development, Laila Huneidi

Dissertations and Theses

This mixed-method study is focused on the values, beliefs, and attitudes of Jordanian elites towards liberalization, democratization and development. The study aims to describe elites' political culture and centers of influence, as well as Jordan's viability of achieving higher developmental levels. Survey results are presented. The study argues that the Jordanian regime remains congruent with elites' political culture and other patterns of authority within the elite strata. However, until this "cautious liberal" political culture of Jordanian elites changes, a transitional movement cannot arise that would lead Jordan towards greater liberalism, constitutionalism and development. The study concludes with implications for transitional …

Analyses Of Bus Travel Time Reliability And Transit Signal Priority At The Stop-To-Stop Segment Level, Wei Feng

Dissertations and Theses

Transit travel time is affected by many factors including traffic signals and traffic condition. Transit agencies have implemented strategies such as transit signal priority (TSP) to reduce transit travel time and improve service reliability. However, due to the lack of empirical data, the joint impact of these factors and improvement strategies on bus travel time has not been studied at the stop-to-stop segment level.

This study utilizes and integrates three databases available along an urban arterial corridor in Portland, Oregon. Data sources include stop-level bus automatic vehicle location (AVL) and automatic passenger count (APC) data provided by the Tri-County Metropolitan …

The Effects Of Organizational Justice And Exercise On The Relationship Between Job Stressors And Employee Health, Ana Cristina B. Costa

Dissertations and Theses

Recent decades have seen an explosion of research centered on understanding the influential impact that job stressors have on employees' subjective well-being, and now more recently, on objective assessments of physical health. Utilizing baseline data from a larger study funded by the National Institute for Occupational Safety and Health (NIOSH), I conducted a field study on blue-collar employees from two organizations in the construction industry, with the goal of exploring the impact of job stressors on job satisfaction (subjective well-being) and body mass index (objective health), as well as the influence of organizational justice as a moderator and exercise as …

Mediating Academic Success: Race, Class, Gender And Community College Persistence, Schaylee Marie Esparza

Dissertations and Theses

Over the last forty years, the U.S. community college system has expanded, allowing disadvantaged groups greater access to higher education. With that expansion, a body of research has emerged examining community college students' educational outcomes. However, the research is limited in understanding the academic persistence of low-income students and community college student in particular. The purpose of this comparative, qualitative study is to explore some of the unanswered questions about how low income white and Latino students' experience academic persistence similarly and differently and understand how gender influences the challenges students may face during college.

This study draws from interviews …

School District Bond Campaigns: Strategies That Ensure Successful Outcomes, Linda L. Florence

Dissertations and Theses

When the polls close and the ballots are counted, the best sound is the roar of ecstatic cheering from delighted but exhausted campaign committee members. A bond campaign takes an inordinate amount of work, but the results are worth the effort when the campaign is managed in a systematic way. Districts can be successful bond recipients when they effectively market their schools to gain the support of their constituents.

Public schools across the U.S. are in dire need of major repairs, remodeling, and rebuilding to meet the educational needs of students. Unfortunately, passing a school bond election is entrusted to …

Exploring Connections Between Efforts To Restrict Same-Sex Marriage And Surging Public Opinion Support For Same-Sex Marriage Rights: Could Efforts To Restrict Gay Rights Help To Explain Increases In Public Opinion Support For Same-Sex Marriage?, Samuel Everett Christian Dunlop

Dissertations and Theses

Scholarly research on the subject of the swift pace of change in support for same-sex marriage has evolved significantly over the last ten years. The shift has gone beyond the scholarship's initial description amongst demographic groups on how opinion has changed on gay rights issues, like same-sex marriage, to an examination of why the change has occurred. A great deal of the initial research on the topic seemed to focus on demographic traits that suggested a greater propensity toward support for same-sex marriage as time went on. Is the existent literature sufficient to explain why such a dramatic change in …

Black And Blue And Read All Over: News Framing And The Coverage Of Crime, Kalistah Quilla Cosand

Dissertations and Theses

This study explores the representation of crime in the news in relation to expressed emotion and intention for future action. Episodic and thematic framing (Iyengar, 1991) and narrative processing (Singer & Bluck, 2001) served as the theoretical foundations of this study and helped examine how scripted news stories involving crime influence levels of fear, anger, and empathy in individuals, and how these emotions subsequently affect behaviors. To measure these framing effects, an experimental manipulation was employed using three conceptually different news stories all involving gun-related crimes. One news story utilized an episodic format, while the other two stories used a …

A Comparison Of Linguistic Features In The Academic Writing Of Advanced English Language Learner And English First Language University Students, Margo K. Russell

Dissertations and Theses

Writing for an academic purpose is not an easy skill to master, whether for a native English speaker (L1) or an English language learner (ELL). In order to better prepare ELL students for success in mainstream content courses at the university level, more must be known about the characteristics of student writing in the local context of an intensive English program. This information can be used to inform ELL writing instructors of which linguistic features to target so that their students produce writing that sounds appropriate for the academic written register.

Two corpora of 30 research essays each were compiled, …