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Portland State University

2018

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Articles 1 - 30 of 394

Full-Text Articles in Social and Behavioral Sciences

Affordances On Facebook, Stress, And Emotional Support, Caitlin Rose Rethwish Dec 2018

Affordances On Facebook, Stress, And Emotional Support, Caitlin Rose Rethwish

Dissertations and Theses

This study discusses Facebook as a social network site and a social media application. It compares perceived emotional support, general life stress, and media affordance-based stress from two participant samples - one that reported using the Facebook desktop site most frequently to reach out for emotional support, and one that reported using the mobile application.

The media affordance measure asked participants if perceiving a media affordance was more likely to increase or decrease their stress. In both samples, persistence was more likely to decrease stress, and personalization was more likely to increase stress. On the Facebook Desktop site, searchability was more ...


Innovations In Leadership Development: Centering Communities Of Color, Ann Curry-Stevens Dec 2018

Innovations In Leadership Development: Centering Communities Of Color, Ann Curry-Stevens

Social Work Faculty Publications and Presentations

With innovative funding from a large local foundation, communities of color in Portland, Oregon developed an array of leadership programs to serve communities of color. This article shares the models they developed, including overviews of curriculum, theories of change, and concrete evidence-based gains achieved by the programs. Innovations include a leadership model that is rooted in community leadership, and the emergence of community priorities to guide the programs, alongside culturally-specific programs that are effective in reaching and supporting the participation of emerging and existing leaders of color. Community priorities included advocacy engagement that resulted in achieving real gains during the ...


Consciousness Against Commodifcation: The Potential For A Radical Housing Movement In The Cully Neighborhood, Cameron Hart Herrington Dec 2018

Consciousness Against Commodifcation: The Potential For A Radical Housing Movement In The Cully Neighborhood, Cameron Hart Herrington

Dissertations and Theses

A right to housing is a central iteration of the broader demand for a democratic right to the city. The perpetual housing crisis for lower-income people results from a commodified system in which access to housing is based on the exchange value interests of property owners, rather than a universal right to a decent, affordable home. This system is a pillar of neoliberal urban governance and justified by a hegemonic ideology that equates speculative homeownership with the American Dream. Achieving a right to housing, even at the local scale, requires a radical movement that cultivates individual and collective consciousness, discredits ...


History In Motion: Seeing Cuba’S Future Through The Past And Present, Kevin Kecskes Dec 2018

History In Motion: Seeing Cuba’S Future Through The Past And Present, Kevin Kecskes

Hatfield Graduate Journal of Public Affairs

This article is a foreword for Volume 3, Issue 1 of the Hatfield Graduate Journal of Public Affairs.


Capturing The Built Environment-Travel Interaction For Strategic Planning: Development Of A Multimodal Travel Module For The Regional Strategic Planning Model (Rspm), Liming Wang, Brian Gregor, Huajie Yang, Tara Weidner, Anthony Knudson Dec 2018

Capturing The Built Environment-Travel Interaction For Strategic Planning: Development Of A Multimodal Travel Module For The Regional Strategic Planning Model (Rspm), Liming Wang, Brian Gregor, Huajie Yang, Tara Weidner, Anthony Knudson

Urban Studies and Planning Faculty Publications and Presentations

Integrated land use and transportation models have evolved along a spectrum from simple sketch planning models to complex microsimulation models. While each has its niche, they are largely unable to balance the flexibility and realism of microsimulation and the speed and interactivity of simple models. The Regional Strategic Planning Model (RSPM) aims to fill this gap by taking a microsimulation approach while making other simplifications in order to model first-order effects quickly. It enables planners to consider the robustness of prospective policies in the face of future uncertainties by accepting a broad range of inputs and allowing rapid simulations of ...


A Multicultural Approach To Digital Information Literacy Skills Evaluation In An Israeli College, Efrat Pieterse, Riki Greenberg, Zahava Santo Dec 2018

A Multicultural Approach To Digital Information Literacy Skills Evaluation In An Israeli College, Efrat Pieterse, Riki Greenberg, Zahava Santo

Communications in Information Literacy

Information literacy is an essential proficiency for success in academic studies, yet many first-year students find it hard to use information sources efficiently and to develop academic information literacy. This study reports findings from first-year students' self-estimation of their information skills according to two information literacy models (Shapiro & Hughes, 1996; Ng, 2012) and presents interesting insights on the differences between the multicultural and multilingual student groups in the study’s population. The researchers found that Hebrew-native speaking students preferred digital sources while Hebrew as second language (Arabic-speaking) students preferred printed sources, and both groups ranked their technological and information literacy skills as ...


Long-Term Variation Of Summer Phytoplankton Communities In An Urban Lake In Relation To Lake Management And Climate Conditions, Yuan Xiao Grund Dec 2018

Long-Term Variation Of Summer Phytoplankton Communities In An Urban Lake In Relation To Lake Management And Climate Conditions, Yuan Xiao Grund

Dissertations and Theses

Eutrophication is one of the primary factors causing harmful cyanobacteria blooms in freshwater lakes; climate change such as warmer temperature can potentially further increase both frequency and intensity of blooms. This study investigated the long-term changes in water quality and summer phytoplankton assemblages in Oswego Lake, OR, in relation to lake management practices (e.g., hypolimnetic aeration and alum treatments), as well as climatic and regional meteorological conditions. Both water quality and phytoplankton assemblages were sampled biweekly during summer seasons between 2001 and 2013. The concentrations of total phosphorus (TP), soluble reactive phosphorus (SRP) and total nitrogen (TN) decreased 66 ...


Working Paper No. 22, Coffee And The American Independence Movement, Ross Bradner Dec 2018

Working Paper No. 22, Coffee And The American Independence Movement, Ross Bradner

Working Papers in Economics

Coffee has a long history as a motivating force in society, as can be seen through its history in different parts of the world. The introduction of coffee houses to western culture would promote the emergence of a public sphere, and would come to influence revolutionary behavior in both Western Europe and the North American colonies.


Working Paper No. 28, Roots Of The American Labor Movement, Lillian Garcia Dec 2018

Working Paper No. 28, Roots Of The American Labor Movement, Lillian Garcia

Working Papers in Economics

This inquiry seeks to establish that early developments in America’s workforce helped to shape the national labor movement that emerged at the end of the 19th Century. The first section discusses the changing social, economic, and legal landscapes from the colonial era to the Industrial Revolution. The second section examines the history of concerted action amongst the free and bound working classes leading up to 1842, when the case Commonwealth v. Hunt established the previously contested per se legality of labor combinations. The final section discusses developments in labor organization during the decades following Hunt, in which, amidst ...


Working Paper No. 29, Lina Khan, New Technologies, And Institutional Reform, Lillian Garcia Dec 2018

Working Paper No. 29, Lina Khan, New Technologies, And Institutional Reform, Lillian Garcia

Working Papers in Economics

This inquiry seeks to establish that Lina Khan’s work brings to light the importance of reforming institutions in order to address the challenges of internet technology. As the dominance of a small number of technology giants has increased to unforeseen proportions, legal mind Lina Khan has emerged as a leading voice in the call for an updated legal framework, as well as a revision of current economic understanding, to address the new forms of monopoly power these firms practice. The first part of this inquiry examines Chicago School dominance over economic thought and its effect on antitrust enforcement over ...


Working Paper No. 10, The Epic Rise And Subtle Fall Of American Herbalism, Julia Schweid Dec 2018

Working Paper No. 10, The Epic Rise And Subtle Fall Of American Herbalism, Julia Schweid

Working Papers in Economics

This inquiry seeks to establish that we can track the development and evolution of herbalism as the initial form of medicine in American economic history. Upon colonization of North America, the indigenous people generously shared their knowledge of plant medicine with the settlers from Europe. The indigenous knowledge combined with the translation of ancient herbal texts created a synthesis of understanding and an important form of cultural exchange. People then began making attempts to standardize the medicine and its potency was compromised with the rise of the industry in patent medicine, or what I have named pseudo herbalism. It was ...


Working Paper No. 02, Marx On British Colonialism In India, Lauren Sweger-Hollingsworth Dec 2018

Working Paper No. 02, Marx On British Colonialism In India, Lauren Sweger-Hollingsworth

Working Papers in Economics

This inquiry seeks to establish that Karl Marx offers a penetrating understanding of British colonialism in India. Marx emphasizes that England essentially leveled the entire foundation of Indian society, separating India from its ancient traditions and history, destroying the basis for the regions agriculture, and undermining their manufacturing industries. The Court of Directors, under the authorization of the Crown, appointed the government of India. The administration allocated the country to the highest bidder, cost Indian citizens large sums of money each year, and perpetuated its abuses. Furthermore, the system of taxation was onerous and more oppressive than any other in ...


Characterizing Temperature Variability States Across Southern South America And Associated Synoptic-Scale Meteorological Patterns, Judah Adam Detzer Dec 2018

Characterizing Temperature Variability States Across Southern South America And Associated Synoptic-Scale Meteorological Patterns, Judah Adam Detzer

Dissertations and Theses

The aim of this thesis is to understand spatiotemporal temperature variability in southern South America by identifying overarching temperature variability states and their associated synoptic-scale meteorological patterns. Further, the temporal frequency of occurrence of those temperature variability states is investigated as is the role of recurrent low-frequency modes of climate variability (El Niño Southern Oscillation and the Southern Annular Mode) on temperature variability. K-means cluster analysis is used to group all months during the period 1980-2015 into four primary categories for summer and winter separately. Monthly maps of temperature anomalies are provided as input to the k-means algorithm and the ...


Vehicle Sensor Data (Vsd) Based Traffic Control In Connected Automated Vehicle (Cav) Environment, Xianfeng Terry Yang, Zhao Zhang, Zhehao Zhang Dec 2018

Vehicle Sensor Data (Vsd) Based Traffic Control In Connected Automated Vehicle (Cav) Environment, Xianfeng Terry Yang, Zhao Zhang, Zhehao Zhang

TREC Final Reports

Connected automated vehicles (CAVs) are typically equipped with communication devices (e.g., dedicated short range communications (DSRC)) and on-board sensors (e.g., Radar, Lidar, Camera, etc.). Communication devices would enable the exchange of real-time information between vehicles and infrastructures via vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) channels. Sensors equipped in vehicles are providing various vehicle sensor data (VSD) such as the CAV’s GPS location, speed and moving direction (trajectory). Existing studies have shown the effectiveness of using CAV trajectories as input in many traffic control models.

However, it can be expected that CAVs and human-driven vehicles (HVs) will co-exist on ...


Interdependent Infrastructure As Linked Social, Ecological, And Technological Systems (Setss) To Address Lock-In And Enhance Resilience, Samuel A. Markolf, Mikhail Chester, Daniel A. Eisenberg, David Iwaniec, Cliff I. Davidson, Rae Zimmerman, Thaddeus R. Miller, Benjamin Ruddell, Heejun Chang Dec 2018

Interdependent Infrastructure As Linked Social, Ecological, And Technological Systems (Setss) To Address Lock-In And Enhance Resilience, Samuel A. Markolf, Mikhail Chester, Daniel A. Eisenberg, David Iwaniec, Cliff I. Davidson, Rae Zimmerman, Thaddeus R. Miller, Benjamin Ruddell, Heejun Chang

Geography Faculty Publications and Presentations

Traditional infrastructure adaptation to extreme weather events (and now climate change) has typically been techno-centric and heavily grounded in robustness—the capacity to prevent or minimize disruptions via a risk-based approach that emphasizes control, armoring, and strengthening (e.g., raising the height of levees). However, climate and nonclimate challenges facing infrastructure are not purely technological. Ecological and social systems also warrant consideration to manage issues of overconfidence, inflexibility, interdependence, and resource utilization—among others. As a result, techno-centric adaptation strategies can result in unwanted tradeoffs, unintended consequences, and underaddressed vulnerabilities. Techno-centric strategies that lock-in today’s infrastructure systems to vulnerable ...


Modeling Mixed Freeway Traffic: Human-Driven And Self-Driven Cars, Xianfeng Terry Yang, Zhao Zhang, Zhehao Zhang Dec 2018

Modeling Mixed Freeway Traffic: Human-Driven And Self-Driven Cars, Xianfeng Terry Yang, Zhao Zhang, Zhehao Zhang

TREC Project Briefs

Connected automated vehicles (CAVs) are typically equipped with communication devices (e.g., dedicated short range communications (DSRC)) and on-board sensors (e.g., Radar, Lidar, Camera, etc.). Communication devices would enable the exchange of real-time information between vehicles and infrastructures via vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) channels. Sensors equipped in vehicles are providing various vehicle sensor data (VSD) such as the CAV’s GPS location, speed and moving direction (trajectory). Existing studies have shown the effectiveness of using CAV trajectories as input in many traffic control models.

However, it can be expected that CAVs and human-driven vehicles (HVs) will co-exist on ...


Engaging Youth To Increase Their Transportation System Support, Understanding, And Use, Autumn Shafer, Jared Macary Dec 2018

Engaging Youth To Increase Their Transportation System Support, Understanding, And Use, Autumn Shafer, Jared Macary

TREC Final Reports

Little is known from research about how to motivate youth to choose non-car mobility, especially specific Portland-area youth. Understanding the current attitudes, beliefs, and behaviors of youth in relation to non-car mobility contributes to the sustainability of a long-term transportation system. Transportation system-related beliefs and behaviors of youth are likely to influence their willingness to access and support transportation services as adults. Today’s youth are tomorrow’s riders, bikers, walkers, voters, and transportation planners. Thus, it is important to develop age-appropriate messaging strategies and tactics that promote youth non-car mobility.

This project seeks to build on the sparse national ...


Environmental And Equity Scenarios For Alternative Fuel Vehicle Ownership And Use In The Portland Region, John Macarthur, Kelly Clifton, Joseph Broach, Baxter Shandobil Dec 2018

Environmental And Equity Scenarios For Alternative Fuel Vehicle Ownership And Use In The Portland Region, John Macarthur, Kelly Clifton, Joseph Broach, Baxter Shandobil

TREC Final Reports

The City of Portland has been looking to understand the mobility profiles and the associated carbon impacts of different communities in the region. In addition, the City is evaluating its electric vehicle strategy, including placement of charging infrastructure based on locations that will have the greatest impact on reducing carbon emissions and encouraging use of electric vehicles (EVs). To help in this effort, the project is looking to answer the following questions: 1) How are carbon impacts from the use of personal vehicles distributed among different neighborhoods in Portland and the Metro region? 2) Do low-income and minority communities have ...


Asymmetric Relationship Of Urbanization And Co2 Emissions In Less Developed Countries, Julius Mcgee, Richard York Dec 2018

Asymmetric Relationship Of Urbanization And Co2 Emissions In Less Developed Countries, Julius Mcgee, Richard York

Sociology Faculty Publications and Presentations

Understanding the relationship between carbon dioxide (CO2) emissions and the urbanization of national populations has been a key concern for environmental scholars for several decades. Although sophisticated modeling techniques have been developed to explore the connection between increases in urban populations and CO2 emissions, none has attempted to assess whether declines in urbanization have an effect on emissions that is not symmetrical with that of growth in urbanization. The present study uses panel data on CO2 emissions and the percentage of individuals living in urban areas, as well as a variety of other structural factors, for less-developed ...


The Influence Of Shared Mobility And Transportation Policies On Vehicle Ownership, Edgar Bertini Ruas Nov 2018

The Influence Of Shared Mobility And Transportation Policies On Vehicle Ownership, Edgar Bertini Ruas

TREC Friday Seminar Series

With the emergence of several new providers of shared mobility services, such as Uber, Biketown and Car2go, there has been the promise of changes to the traditional way of owning and using a vehicle. One potential consequence of the new mobility services is the reduction in vehicle ownership. At the same time, cities are trying to anticipate these changes by reducing the amount of space dedicated to parking. This thesis aims to asses the extent to which new shared mobility and transportation policy strategies (especially parking requirements and transit pass availability) relate to vehicle ownership among residents of multifamily dwellings ...


Webinar: Segmenting The Market For Transportation Demand Management Campaigns, Philip L. Winters, Amy Lester Nov 2018

Webinar: Segmenting The Market For Transportation Demand Management Campaigns, Philip L. Winters, Amy Lester

TREC Webinar Series

Social marketing seeks to develop and integrate marketing concepts with other approaches to influence behaviors that benefit individuals and communities for the greater social good. It is a useful transportation demand management (TDM) planning approach to promote travel behavior change. The purpose of this study was to explore a consumer market segmentation technique successfully used in Europe for its applicability to marketing efforts in the United States. Attitudinal and demographic data were collected from 1900 individuals in Florida, Oregon, and Virginia modeled after the European approach. Clustering analysis was applied to divide the sample into segments so that members of ...


The Role Of The Academic Analyst In Shared Governance, Rebecca Ann Mathern Nov 2018

The Role Of The Academic Analyst In Shared Governance, Rebecca Ann Mathern

Dissertations and Theses

This research explores the roles of academic professionals in higher education, specific to how they engage in decision-making processes. Academic professionals provide important functions in higher education work but there is little in the literature about these actors and their contributions to leadership and governance. A literature review triangulated role theory, organization theory, and the shared-governance field of study to bring together actors within higher education and compare their involvement based on the shared-governance model in operation at different institutions. The researcher introduced the hypothesis that when registrars are not involved in curriculum management, there may be negative effects on ...


Investigating Time During Residential Program Until Transition For Adjudicated Youth: A Mixed Methods Study Using Event History Analysis With Follow-Up Interviews, Emily Carol Lott Nov 2018

Investigating Time During Residential Program Until Transition For Adjudicated Youth: A Mixed Methods Study Using Event History Analysis With Follow-Up Interviews, Emily Carol Lott

Dissertations and Theses

Residential placement is considered the most severe sanction for adjudicated youth, yet there is little consensus on best practices and interventions in residential settings. Demographic trends in the juvenile justice system further exacerbate challenges in studying residential placements. Disparities among minority youth, diverging state definitions of juvenile sex offenses, discrepancies in recidivism measures, and variations in local and state juvenile courts have contributed to a convoluted system that has struggled to identify the meaning of "success" in residential settings.

Building on theories of engagement in residential care and program theory of change, this mixed methods study explores how various components ...


Scenarios For Adoption Of Autonomous Vehicle Technologies In Freight, Sabya Mishra Nov 2018

Scenarios For Adoption Of Autonomous Vehicle Technologies In Freight, Sabya Mishra

TREC Friday Seminar Series

Innovation adoption research has largely ignored organizational adoption, and little work has been done to understand or predict the adoption of innovations by freight organizations. Among the existing innovation adoption theoretical and methodological approaches this seminar will explore which are most appropriate methods for freight organizational adoption. The seminar will present a disaggregate market penetration model for freight transportation organizations adopting connected autonomous vehicle (CAV) technology and demonstrate an application using a case study area in Memphis, TN. The seminar will highlight ongoing and future organizational adoption research for CAVs, and other innovations.


Portland’S Transportation Wallet: How Pricing Parking Can Create New Mobility Options, Sarah Goforth Nov 2018

Portland’S Transportation Wallet: How Pricing Parking Can Create New Mobility Options, Sarah Goforth

TREC Friday Seminar Series

The Transportation Wallet is one of Portland’s newest parking and transportation demand management (TDM) strategies, designed to reduce parking demand while simultaneously offering new mobility options by bundling transit and bike share passes into one consumer product. Two of Portland’s managed parking districts have elected to add a surcharge to the cost of on-street parking permits, a portion of which is used to subsidize the cost of the Transportation Wallet. Residents and employees in the parking districts are eligible to purchase the Transportation Wallet at a fraction of the retail cost. As an added incentive to increase parking ...


Studying The Effects Of Motivated Reasoning On Appraisals Of Message Strength, Aric Christopher Powell Nov 2018

Studying The Effects Of Motivated Reasoning On Appraisals Of Message Strength, Aric Christopher Powell

Dissertations and Theses

This study was designed to investigate decision-making as it relates to message appraisal, and determine what effect, if any, identification with the message source has on those appraisals. For the purpose of study, message appraisal was operationalized as message strength ratings. Furthermore, the study investigated how the political ideology of message receivers and the perceived partisanship of message senders might influence identification, and message appraisal by extension. The study used the theory of motivated reasoning to explain the role of identification in the process of message appraisal. The results indicate that there is a relationship between identification and message strength ...


Judgments Of Lethal Risk: A Comparison Of Visual And Narrative Stimuli, Derek Anthony Bonniksen Nov 2018

Judgments Of Lethal Risk: A Comparison Of Visual And Narrative Stimuli, Derek Anthony Bonniksen

Dissertations and Theses

The nature of how we make judgments has received a great deal of attention in the last few decades. Risk communication research has indicated that risk-related messages can elicit affective responses in audiences, which can then have a significant impact on how such audiences judge risk in general. Using a 2 x 2 between-subjects factorial design, this study found that, contrary to Johnson and Tversky's (1983) findings, presenting narratives about lethal risk does not influence readers' judgments about the frequency that risks occur, nor do such narratives influence participant worry levels about the lethal risks, more generally. Additionally, the ...


Is Public Transit's 'Green' Reputation Deserved?, Justin Beaudoin Nov 2018

Is Public Transit's 'Green' Reputation Deserved?, Justin Beaudoin

TREC Friday Seminar Series

While public transit has a reputation as a potential means to ameliorate the adverse environmental effects of automobile travel, there have been very few empirical studies of the marginal effect of transit supply on air quality. We explore whether any of the substantial improvement in air quality observed in the U.S. from 1991 to 2011 can be attributed to increased public transit supply by developing an equilibrium model of transit and automobile travel volumes as a function of the level of transit supplied. We then empirically analyze the effects of the level of transit supply on observed ambient pollution ...


Yamhill-Carlton School District Enrollment Forecast 2019-20 To 2028-29, Charles Rynerson Nov 2018

Yamhill-Carlton School District Enrollment Forecast 2019-20 To 2028-29, Charles Rynerson

School District Enrollment Forecast Reports

This report presents the results of a demographic study conducted by the Portland State University Population Research Center (PRC) for the Yamhill-Carlton School District (LOSD). The study includes population, housing and enrollment trends affecting the District in recent years, and forecasts of district‐wide school enrollments for the 2019‐20 to 2028‐29 school years. Following are some of the highlights found in this report:

  • Population and Housing Trends
  • Housing and Enrollment
  • Enrollment Trends
  • Enrollment Forecasts


Health Behavior Among Men Occupying Multiple Family Roles And The Moderating Effects Of Perceived Partner Relationship Quality, Nicole Depasquale, Courtney A. Polenick, Jesse Hinde, Jeremy Bray, Steven H. Zarit, Phyllis Moen, Leslie B. Hammer, David M. Almeida Nov 2018

Health Behavior Among Men Occupying Multiple Family Roles And The Moderating Effects Of Perceived Partner Relationship Quality, Nicole Depasquale, Courtney A. Polenick, Jesse Hinde, Jeremy Bray, Steven H. Zarit, Phyllis Moen, Leslie B. Hammer, David M. Almeida

Psychology Faculty Publications and Presentations

Men in the U.S. are increasingly involved in their children’s lives and currently represent 40% of informal caregivers to dependent relatives or friends aged 18 years or older. Yet, much more is known about the health effects of varying family role occupancies for women relative to men. The present research sought to fill this empirical gap by first comparing the health behavior (sleep duration, cigarette smoking, alcohol consumption, exercise, fast food consumption) of men who only occupy partner roles and partnered men who also fill father, informal caregiver, or both father and informal caregiver (i.e., sandwiched) roles ...