Digital Commons Network^™

Characterization Of Retinol Stabilized In Phosphatidylcholine Vesicles With And Without Antioxidants, Yekaterina G. Chmykh, Jay Nadeau

Physics Faculty Publications and Presentations

Retinol stability has been reported to be improved by encapsulation in liposomes, both with and without cholesterol. However, this improvement is limited because of lipid peroxidation. In this study, we compare the stability of retinol in phosphatidylcholine liposomes under ultraviolet (UV) light or standard room air, with and without the addition of antioxidants. Both butylated hydroxytoluene (BHT) and a proprietary mix (StoppOx) improved the shelf stability from vesicles, including within the aqueous layer. Fluorescence lifetimes were equally heterogeneous. Under UV irradiation, StoppOx protected retinol for significantly longer than BHT and via different mechanisms. This suggests that natural antioxidants work well …

Family Features Of Social Withdrawal Syndrome (Hikikomori), Malagón-Amor, Luis Miguel Martín-López, David Corcoles, Anna González, Magda Bellsolà, Alan R. Teo, Antoni Bulbena, Victor Pérez, Daniel Bergé

Psychology Faculty Publications and Presentations

Background: Family may play an important role in the origin, maintenance, and treatment of people with social withdrawal. The aim of this study is to analyze family factors related to social withdrawal syndrome.

Methods: Socio-demographic, clinical, and family data, including family psychiatric history, dysfunctional family dynamics, and history of family abuse were analyzed in 190 cases of social withdrawal with a minimum duration of 6 months that started an at-home treatment program. Data were analyzed at baseline and at 12 months.

Results: In 36 cases (18%) neither the patient nor the family allowed at home evaluation and treatment by the …

Sediment Interval Velocities From A Monostatic Multibeam Sonar, Charles W. Holland, Samuel Pinson

Electrical and Computer Engineering Faculty Publications and Presentations

Interval velocities for marine sediments are generally obtained from source-receiver separations at various offsets. A method is described for estimating interval velocities using a monostatic configuration. Testing is performed using simulated data from rough layered seabeds and interval velocity is estimated within less than 1% of the true value. Monostatic multibeam data from the Gulf of Lion are also presented which exhibit many characteristics similar to the simulated data. The method applied to the measured data yield an interval velocity of 1569 m/s in an 18m sediment layer. This accords with nearby independent data from cores and wide-angle reflection analysis. …

An Expert Discussion On Structural Racism In Autism Research And Practice, Desiree R. Jones, Christina Nicolaidis, Lisa J. Ellwood, Arianne Garcia, Khalilah R. Johnson, Kristina Lopez, T. C. Waisman

School of Social Work Faculty Publications and Presentations

Autism research has a race problem. Despite improvements in screening and diagnosis, autism continues to be underdiagnosed in Black and Hispanic children , and those who obtain a diagnosis often have limited access to support services. Racial disparities persist during the transition to adulthood, with autistic adults from racial and ethnic minority groups experiencing a number of challenges, including lower rates of employment, social participation, and postsecondary education compared to White autistic adults. While these studies highlight the important intersection between race, ethnicity and autism, people of color remain consistently under-represented in autism research , and dialogues regarding the impact …

Easa Connections: Community-Based Participatory Research To Develop A Peer-Based Early Psychosis Web Resource With Young Adults, Dora Raymaker, Tamara G. Sale, Mariam Rija, Nicholas Buekea, Nybelle Caruso, Ryan P. Melton, Natalie Cohrs, Veronica Gould, Christina Wall, Mirah L. Scharer

School of Social Work Faculty Publications and Presentations

Young adults (YA) who have experienced early psychosis (EP) have valuable information about their recovery process yet are often left out of research. We used a community-based participatory research (CBPR) approach in partnership with the Early Assessment and Support Alliance (EASA) EP program and Portland State University to develop a peer-driven, web-based, recovery resource.We used our CBPR process to collaboratively develop the resource and conducted an iterative usability study to test and refine it. The resource was well-received and accessible. YA partners emphasize the importance of being prepared to learn about research and one’s self, being open to new experiences, …

Parent Health Beliefs, Social Determinants Of Health, And Child Health Services Utilization Among Us School-Age Children With Autism, Katharine Zuckerman, Olivia J. Lindly, Brianna Sinche, Christina Nicolaidis

School of Social Work Faculty Publications and Presentations

Objective—Substantial variation exists in ASD care by race, ethnicity, and socioeconomic status; however, the role of parent health beliefs in this variation is poorly understood. Study goals were to (1) examine variation in parent beliefs about ASD prognosis and treatment according to social determinants of health (SDH) and (2) assess whether this variation was associated with variable health services utilization, among 1420 children with special health care needs (CSHCN) having autism spectrum disorder (ASD). Methods—We used linked data from the 2011 Survey of Pathways to Diagnosis and Treatment and the 2009/10 National Survey of Children with Special Health Care Needs. …

The Importance Of “Being There”: A Qualitative Study Of What Veterans With Depression Want In Social Support, Alan R. Teo, Heather E. Marsh, S. Ono, Christina Nicolaidis, Somnath Saha, Steven K. Dobscha

School of Social Work Faculty Publications and Presentations

Background: Social connectedness exerts strong influences on health, including major depression and suicide. A major component of social connectedness is having individual relationships with close supports, romantic partners and other trusted members of one’s social network. Objective: The objective of this study was to understand how individuals’ relationships with close supports might be leveraged to improve outcomes for primary care patients with depression and at risk for suicide. Design: In this qualitative study, a semi-structured interview guide was used to probe patient experiences, views, and preferences related to social support. Participants: We conducted interviews with 30 primary care patients at …

Syrian Refugees’ Perspectives And Service Providers’ Viewpoints On Major Needs And Future Plans In Jordan, Mitra Naseh, Natalia Liviero, Maryam Rafieifar, Zahra Abtahi, Miriam Potocky

School of Social Work Faculty Publications and Presentations

The ongoing civil war in Syria created the world’s largest refugee crisis since World War II. As exile continues for many Syrians, this study aimed to explore what refugees perceive as their major needs and plans for the future in comparison to what service providers believe is needed and should be planned in Jordan. Phenomenological design and inductive reasoning were used in this study to explore refugees’ needs and future plans from the etic view by interviewing key informants and from the emic view by analyzing interviews with refugees. After coding and comparing the key informants’ interviews and refugees’ narratives, …

Archaeosine Modification Of Archaeal Trna - A Role In Structural Stabilization, Ben Turner, Brett W. Burkhart, Katrin Weidenbach, Robert Ross, Patrick A. Limbach, Ruth A. Schmitz, Valérie De Crécy-Lagard, Kenneth M. Stedman, Thomas J. Santangelo, Dirk Iwata-Reuyl

Biology Faculty Publications and Presentations

Archaeosine (G+) is a structurally complex modified nucleoside found quasi-universally in the tRNA of Archaea and located at position 15 in the dihydrouridine loop, a site not modified in any tRNA outside of the Archaea. G+ is characterized by an unusual 7-deazaguanosine core structure with a formamidine group at the 7-position. The location of G+ at position 15, coupled with its novel molecular structure, led to a hypothesis that G+ stabilizes tRNA tertiary structure through several distinct mechanisms. To test whether G+ contributes to tRNA stability and define the biological role of G+, we investigated the consequences of introducing targeted …

Reemergence Of Guadalupe Fur Seals In The U.S. Pacific Northwest: The Epidemiology Of Tranding Events During 2005–2016, Erin D'Agnese, Dyanna M. Lambourn, James Rice, Debbie Duffield, Jessica L. Huggins, Terry Spraker, Stephen A. Raverty, Tetiana Kuzmina, Micheal E. Grigg, Kristin Wilkinson, Multiple Additional Authors

Biology Faculty Publications and Presentations

Guadalupe fur seals (GFS), Arctocephalus philippii townsendi, an U.S. Endangered Species Act threatened pinniped, have recently reappeared in their historic range along the western seaboard of the continental United States. Starting 2005 through 2016, 169 GFSs stranded in Washington and Oregon, involving two designated unusual mortality events. The circumstances surrounding GFS strandings, mortality, and their increased presence in Oregon and Washington were analyzed during this study. Detailed necropsies, histopathology (n = 93), and epidemiological analysis found three main causes of death (COD): emaciation (44%), trauma (29%), and infectious disease (19%) and the factors associated with overall strandings and …

A Mixed Methods Analysis Of Corpus Data From Reddit Discussions Of "Gay Voice", Sara Elizabeth Mulliner

Dissertations and Theses

In the last decade, there have been a number of public discussions about "gay voice" and "sounding gay." These two phrases often serve as a shorthand for the belief that a listener can determine the sexuality of a speaker based on phonetic qualities found in a speaker's vocal output. However, these expressions are more accurately described as "catch-all" terms for speech that may contain features associated with non-gender conforming stances and personae. Notions about gender and sexuality could be intertwined in complicated ways in this language ideology. Investigating popular discussions of gay-sounding voices could provide information on what people are …

What Is A Learning Ecosystem?, 21cleo Research Team

21CLEO Research Project Blog Posts

During the past year, we've come to realize that the term learning ecosystem is widely used, but not usually defined or widely understood. Rather than taking the term for granted, we crafted this blog post to

• explore the origins of the term,

• discuss what it has come to mean, and its limitations

• explain how and why we are using the term in our study despite its limitations.

A 30-Year Climatology Of Meteorological Conditions Associated With Lightning Days In The Western United States, Dmitri Alexander Kalashnikov

Dissertations and Theses

A 30-year climatology of lightning and associated synoptic meteorological patterns are characterized across the Western United States (WUS), utilizing a comprehensive composite analysis. Results generally show a preferred synoptic meteorological setup with positive 500-hPa geopotential height anomalies to the northeast of the location experiencing a lightning day, and negative sea level pressure anomalies co-located and to the northwest. Variation in preferred anomaly patterns across the western US reflects the divide between those areas affected by the North American monsoon system and areas outside the monsoonal core. Locations in the western Great Basin and northern Rocky Mountains, which are outside the …

Explaining The Sectarian Violence In The Middle East: A Conflict Analysis Of The Case Study Of Saudi Arabia And Iran, Ahmed Elsayed Eltally

Dissertations and Theses

The Middle East has been rife with conflicts, extremism, and sectarianism in recent decades. Many explanations attribute the rise of sectarianism in the Middle East to the historical divide between Sunni and Shia Muslims, while others attribute it to power or identity concerns. This thesis explores the factors that contributed to the rise of contemporary sectarianism in the Middle East through the case study of Saudi-Iranian rivalry. Drawing on the literature on the history of the Middle East, Islam, theories of international relations, and conflict studies, it underlines how Saudi Arabia and Iran use sectarianism to further their interests. This …

Exploring The Transportation And Land Use Impacts Of E-Commerce, Amanda Howell

PSU Transportation Seminars

E-commerce is growing—it is estimated that e-commerce sales now account for more than 10% of total retail sales in the U.S. The continued maturation of the e-commerce market is fueling a significant growth in warehousing, changing the nature of brick-and-mortar retail, and creating a surge in parcel volumes, which means deliveries are up. Way up. The New York Times recently reported that 1.5 million packages are delivered daily in New York City. In order to meet this demand for delivery, businesses are looking for new and creative ways to deliver packages to consumers, including attempting to automate the last mile. …

The Pacific Sentinel, December 2019, Portland State University. Student Publications Board

The Pacific Sentinel

Editor: Jake Johnson

Articles in this issue include:

• Letter from the Editor
• Making Oregon Count
• Sandwich Ministry
• Racist Propaganda at PSU
• Perils of Commuting
• Pricey Parking
• Further Thoughts on Phrases
• Merry Krampus
• Festival Highlights
• Pop up Readings
• Impact of YA on Teens
• Deep River
• Hard Conversations
• Portland Review & Ooligan Press
• Schnitzer Museum
• Exquisite Creatures
• Giant Poop
• 3 From Hell

Assessing The Barriers To Equity In Smart Mobility Systems: A Case Study Of Portland, Oregon, Aaron Golub, Vivian Satterfield, Michael Serritella, Jai Singh, Senna Phillips

Urban Studies and Planning Faculty Publications and Presentations

There is an active debate about the potential costs and benefits of emerging “smart mobility” systems, especially in how they will serve communities already facing transportation challenges. This paper describes the results of an assessment of these equity issues in the context of lower-income areas of Portland, Oregon, based on a mixture of quantitative and qualitative research. The study found that by lowering costs and improving service for public transit, ridesharing and active transportation, smart mobility systems could address many of the needs of transportation disadvantaged communities. Similar to those found in other case studies, significant barriers prevent smart mobility …

Collaborative Features Of Graphic Narratives: Research For "Lovely, Satisfied, Indifferent Eyes", Brigid K. Fitzpatrick

University Honors Theses

Graphic narratives, such as comics and graphic novels, innately include formal features that invite reader participation. Reading a graphic narrative means contributing to the work. I created a graphic novelette, Lovely, Satisfied, Indifferent Eyes, that prioritizes the conceptual collaboration between author and reader. I did this by enhancing the formal features of the gutter, visual voice, braiding, and temporal representation (time). Creating a graphic narrative that relies on reader participation allows the author and the work to benefit from the vast networks of diverse readers, made possible by the internet and the increased communication in our world as a …

Erotic Manga, Its Artists, And The Pressures Of Censorship, Dominique Andrée Lief

University Honors Theses

Erotic manga (エロマンガ), a genre of adult-oriented Japanese comics is subjected to censorship that may seem irrelevant or confusing to people outside of the industry. Why is erotic manga censored? How is erotic manga censored? How does censorship affect erotic manga artists? These questions are examined through use of English academic sources, Japanese academic sources and news articles, and interviews with professional erotic manga artists translated into English.

Recruitment Marketing: How Do Wellness And Work-Life Benefits Influence Employer Image Perceptions, Organizational Attraction, And Job Pursuit Intentions?, Amy Christine Pytlovany

Dissertations and Theses

A global talent shortage is motivating employers to change the way they approach recruitment. To stay competitive, business leaders are strategizing new ways to attract employees and market their organizations to prospective employees. This research examined the impact of work-life and wellness programs on employer image perceptions (instrumental, symbolic, and experiential) and recruitment outcomes (organizational attraction and job pursuit intentions). It integrated these literatures to inform evidence-based organizational decision-making.

Study materials were developed with pilot testing conducted using Amazon Mechanical Turk (MTurk). Pilot 1 (N = 40) assessed the value of 32 types of benefits across traditional (e.g., health …

Support From Inside Out: Exploring Whether Various Social Supports Assist In Reducing Prison Rule Violations, Sarah Renee Lazzari

Dissertations and Theses

Scholars argue that prison rule violations are a way to assess whether individuals are engaging in prosocial behaviors. Individuals who engage in prosocial behaviors, during periods of incarceration, are less likely to engage in behaviors that result in official rule violations. Decreasing rule violations is one way to work towards a safer prison environment, while also preparing individuals for release. The current study uses cross-sectional data form the 2004 Survey of Inmates in State and Federal Facilities, in order to examine whether multiple types of prisons programs, which will be framed as various types of social supports, influence the frequency …

The Death Of Physical Media: The Dangers Of Streaming And The End Of The Home Library, Amelia Eichler

University Honors Theses

This thesis aims to provide an extensive look at the history of collecting film within the home, starting from pre-cinematic optical toys to today's use of streaming platforms. There is an extensive knowledge gap in the history of film collecting. Much of the information is anecdotal and providing an extensive background will close this gap. Contrasting the different technologies in the home allows for people to see how film collecting practices have evolved. Streaming is currently a new phenomena that has taken over the industry and changed the structure of the home library. Rather than aid the home library, this …

Business Continuity Planning At Portland State University: An Adaptive Approach To Planning For Service Recovery After A Disruption, Heather Roberts

University Honors Theses

This paper examines a case study following the development of business continuity plans at Portland State University (PSU). The PSU business continuity planning team explored a new theory of Adaptive Business Continuity and evaluated its usefulness in an academic service industry. The business continuity project team set out to answer these critical questions: 'Could the Adaptive Business Continuity Theory work for PSU? Was it up to the challenge of many departments with varied regulations, rhythms and stakeholders? Could the Adaptive Business Continuity Theory be implemented by a limited emergency management staff? Would there be enough buy-in from the PSU department …

Critique Of European Union Intervention In Mediterranean Migration: An Examination Of How Territory Can Be Used To Understand Migration Phenomena, Erin B. Bangs

University Honors Theses

Migration has existed virtually as long as humans have. Migration as a social phenomenon is nothing new, however, the way migration and migrants themselves have come to be treated in the legal and political sphere has evolved over time. Today, a decent majority of democratic state governments view and respond negatively to migrants attempting to enter their borders. This is painfully obvious in the case of Mediterranean migration, primarily from Africa to Europe by way of the Mediterranean Sea. What is happening in the Mediterranean is a humanitarian crisis. This work critiques the intervention of the European Union in the …

Connections Between Sensory Sensitivities In Autism; The Importance Of Sensory Friendly Environments For Accessibility And Increased Quality Of Life For The Neurodivergent Autistic Minority., Heidi Morgan

PSU McNair Scholars Online Journal

Many adults diagnosed with Autism Spectrum Disorder (ASD) experience sensory processing sensitivities. Research shows that 94.4% of adults with ASD report co-occurring sensory differences that impact their daily life in a significant way. These sensitivities can create accessibility challenges for the autistic neurominority, especially for autistic individuals with hypersensitivities. This literature review has two purposes. First, it seeks to better understand how these sensory differences impact the experience of individuals in the neurodivergent autistic minority and the correlations between sensory overload, accessibility, mental, emotional and physical health. Secondly, the epistemology influencing this review is critical in nature and is aligned …

Investigating The Origins Of Toxins Present In Electronic Cigarette Aerosols, Shawna Vreeke

Dissertations and Theses

The purported safety of electronic cigarettes has come under scrutiny with the significant increase of lung related illnesses starting in the summer of 2019. Public view has started to shift towards understanding the potential negative health impact associated with these devices. While many investigations indicate probable hazards present in e-cigarette aerosols, inter-laboratory assessments are wide ranging and can be contradictory. Due to the novelty of this field, relatively little is known about these products. In this work, the identification and quantification of inhalation toxicants such as formaldehyde, acrolein, acetaldehyde and dihydroxyacetone are reported. Results of the investigation of the ability …

The Link Between Transit Station Proximity And Real Estate Rents, Jobs, People And Housing With Transit And Land Use Planning Implications, Arthur C. Nelson, Robert Hibberd

TREC Final Reports

This report updates and expands prior research in the genre of research that has used economic base analysis (especially shiftshare) and CoStar commercial rent data to estimate the development outcomes to transit. The study period for prior economic base analysis was 2002-2011and census data for 2000 and 2010, as well as CoStar data for 2013. Prior analysis compared development, demographic and housing outcomes associated with those transit systems during the period before the Great Recession (2000 through 2007) and during recession into recovery (2008 through 2011). Though NITC researchers found important differences in outcomes between the study periods of 2000-2007 …

The Pacific Sentinel, November 2019, Portland State University. Student Publications Board

The Pacific Sentinel

Editor: Jake Johnson

Articles in this issue include:

• Letter from the Editor
• PSU Dodges Walkout on the Eve of Fall Term
• 5th Avenue Cinema Then and Now
• Goodbye Maps Collection, Hello Graduate Collaboratory
• Thousands of Students Ditch School to Lead Portlanders in Climate Strike
• Brief Thoughts on Familiar Phrases
• Critiquing the Critic
• Nothing Wrong with Apu
• The Importance of Media Literacy
• Pop Weekend 2019
• (Sandy) Alex G Album Review
• Clairo Album Review
• The Signs of Beloved Celebrity Birds of PSU
• Funny Page

Urban-Rural Surface Temperature Deviation And Intra-Urban Variations Contained By An Urban Growth Boundary, Kevan B. Moffett, Yasuyo Makido, Vivek Shandas

Urban Studies and Planning Faculty Publications and Presentations

The urban heat island (UHI) concept describes heat trapping that elevates urban temperatures relative to rural temperatures, at least in temperate/humid regions. In drylands, urban irrigation can instead produce an urban cool island (UCI) effect. However, the UHI/UCI characterization suffers from uncertainty in choosing representative urban/rural endmembers, an artificial dichotomy between UHIs and UCIs, and lack of consistent terminology for other patterns of thermal variation at nested scales. We use the case of a historically well-enforced urban growth boundary (UGB) around Portland (Oregon, USA): to explore the representativeness of the surface temperature UHI (SUHI) as derived from Moderate Resolution Imaging …

Towards A People’S Social Epidemiology: Envisioning A More Inclusive And Equitable Future For Social Epi Research And Practice In The 21st Century, Ryan J. Petteway, Mahasin Mujahid, Rachel Morello-Frosch, Amani Allen

OHSU-PSU School of Public Health Faculty Publications and Presentations

Social epidemiology has made critical contributions to understanding population health. However, translation of social epidemiology science into action remains a challenge, raising concerns about the impacts of the field beyond academia. With so much focus on issues related to social position, discrimination, racism, power, and privilege, there has been surprisingly little deliberation about the extent and value of social inclusion and equity within the field itself. Indeed, the challenge of translation/action might be more readily met through re-envisioning the role of the people within the research/practice enterprise—reimagining what “social” could, or even should, mean for the future of the field. …