Digital Commons Network^™

The Almohad: The Rise And Fall Of The Strangers, David Michael Olsen

Dissertations and Theses

The Almohad (1120-1269) displaced the Almoravid dynasty (1040-1147) as the rulers of the Maghreb and Andalusia in 1147 and created the largest Berber kingdom in history. They conquered the first indigenous rulers of the Maghreb by aggregating the Masmuda tribes from the High Atlas Mountains and enlisting the Zenata and Arab tribes from the Northern Maghreb. The Almohad rule built upon the existing Almoravid infrastructure; however, their cultural, administrative, and military approach entailed a more integrated tribal organization, centralized authority, and an original Islamic ideology. In creating this empire they envisioned the Maghreb as a consolidated political center and not …

Trailblazing Transformation: Pioneering Transformative Peacebuilding In Academic Labor Conflicts, Sam Frazier Hediger

Dissertations and Theses

Unionized contingent faculty in the United States face an increasingly difficult economic landscape in their labor-management conflicts with university administrations. These unions, comprised of graduate student employees and adjunct instructors, won significant victories for their members but have failed to shift the broader patterns of casualization, unsustainable compensation, and job precarity, stemming from the systemic debasement of higher education institutions and the American labor movement, both of which pose significant challenges to conventional conflict resolution strategies. To find a path forward, this thesis explores the nature and possibility of transforming of the academic labor conflict, using a transformative peacebuilding approach …

Archaeologists, The Public, And Collectors: Establishing A Regional Database Of Archaeological Sites On Private Land And Collections With A Process For Professional-Public Archaeological Research In The Portland, Oregon Area, Katherine Louise Tipton

Dissertations and Theses

Over the course of daily life, people engage with archaeology in various ways, including experiences with archaeology on their own land and as part of family collections of archaeological material. As a result, members of the public often hold considerable archaeological knowledge that professionals have historically overlooked. Recent scholarship focuses on the issue of incorporating the public and collectors into archaeological research and ways for capturing that information. Professional-public collaboration is particularly important in the Portland, Oregon area, where many archaeological sites are located on private land and there is a long history of collecting.

The goal of this thesis …

Black Freedom Beyond Borders: Memories Of Abolition Day, Amber Butts, Ayize Jama-Everett, Calvin Williams, Donte Clark, Lisa K. Bates, Naudika Williams, Shawn Taylor, Walidah Imarisha, Amir Kadar

Urban Studies and Planning Faculty Publications and Presentations

The anthology is available here for download, and the YouTube video of authors reading excerpts is embedded.

Wakanda Dream Lab and PolicyLink present a storyworld of safety and freedom in a future without prisons and policing.

While debates about “defunding” raise the question of what a new public safety system might look like, authors and artists are showing us what is possible through speculative fiction. In the spirit of visionary fiction, we convened future-bending Black storytellers for a Black Speculative Writer's Room Project, and together, we created an anthology of freedom dream stories exploring a world after the abolition of …

Adherence To Hiv Antiretroviral Therapy Among Pregnant And Postpartum Women During The Option B+ Era: 12-Month Cohort Study In Urban South Africa And Rural Uganda, Lynn T. Matthews, Catherine Orrell, Mwebesa B. Bwana, Alexander C. Tsai, Christina A. Psaros, Stephen Asiimwe, Gideon Amanyire, Nicholas Musinguzi, Kathleen Bell, David Bangsberg, Jessica E. Haberer

OHSU-PSU School of Public Health Faculty Publications and Presentations

Introduction: We conducted a cohort study to understand patterns of anti-retroviral therapy (ART) adherence during pregnancy, postpartum and non-pregnancy follow-up among women initiating ART in public clinics offering Option B+ in rural Uganda and urban South Africa. Methods: We collected survey data, continuously monitored ART adherence (Wisepill), HIV-RNA and pregnancy tests at zero, six and twelve months from women initiating ART in Uganda and South Africa, 2015 to 2017. The primary predictor of interest was follow-up time categorized as pregnant (pregnancy diagnosis to pregnancy end), postpartum (pregnancy end to study exit) or non-pregnancy-related (neither pregnant nor postpartum). Fractional regression …

Impact And Mortality Of Covid-19 On People Living With Dementia: Cross-Country Report, Aida Suárez-González, Gill Livingston, Lee Fay Low, Suzanne Cahill, Niamh Hennelly, Walter D. Dawson, Wendy Weidner, Martina Bocchetta, Cleusa P. Ferri, Jordi A. Matias-Guiu, Multiple Additional Authors

Institute on Aging Publications

This report brings together international evidence on the impact of the COVID-19 pandemic on people living with dementia and an overview of international policy and practice measures to mitigate the impact of COVID-19 among people living with dementia.

Key Findings

• We have collected data on impact and mortality of COVID-19 in people living with dementia in 9 countries: The United Kingdom (UK), Spain, Ireland, Italy, Australia, the United States (US), India, Kenya and Brazil.
• The share of people whose deaths were linked to COVID-19 in care homes who had dementia ranges from 29% to 75% across those countries. Within countries, …

Catholic Social Teaching And Sustainable Development: What The Church Provides For Specialists, Anthony Philip Stine

Dissertations and Theses

The principles of Catholic Social Teaching as represented by the writings of 150 years of popes as well as the theorists inspired by those writings are examined, as well as the two principal schools of thought in the sustainability literature as represented by what is classically called the anthropocentric or managerial approach to sustainability as well as the biocentric school of thought.

This study extends previous research by analyzing what the Catholic Church has said over the course of centuries on issues related to society, economics, and the environment, as embodied in the core concepts of subsidiarity, solidarity, stewardship, the …

Late-Night Political Comedy's Impact On Audience Political Attentiveness, Public Opinion, And Civic Engagement, Molly J. Olmstead

University Honors Theses

This thesis examines the relationship between late-night comedy news shows and their audiences, in terms of how they impact public opinion, political attentiveness and civic engagement. It looks at how the genre of late night political comedy is not a monolith, and neither is its audiences, and addresses the different ways these two interact with one another. Through an in-depth literature review, this thesis finds that late night political comedy has the most impact on politically inattentive audiences who end up learning about politics inadvertently, and that the jokes featured on these shows actively primes these viewers to hold certain …

Dynamic Through-Silicon Via Clustering In 3d Ic Floorplanning For Early Performance Optimization, Sucheta Mohapatra

Dissertations and Theses

Through-silicon via (TSV)-based three-dimensional integrated circuits (3D ICs) are expected to be the breakthrough technology for keeping up with the scaling trends of Moore's law, while also offering the unique opportunity for functional diversification through heterogenous integration. TSVs are vertical metal interconnects enabling communication across stacked and thinned dies. The dramatic reduction in global wirelength and chip footprint in 3DICs, directly improves delay, device density, bandwidth and routing congestion. Even with the current maturation of TSV process, the roadmap for industry adoption of 3DICs remains largely uncertain due to lack of standardized 3D tools capable of handling the sheer complexity …

A New Perspective On Blue-Collar Work: Examining The Relevance Of Common Career Development Theories For Blue-Collar Workers In Manufacturing, Sarah J. Barber

University Honors Theses

Blue-collar career development has been overlooked in academia. This study investigates blue-collar career development based on four career development theories including: Holland's theory of vocational types, social cognitive career theory, Super's developmental self-concept theory, and crystallization of vocational self-concept.

Investigating The Needs Of Foreign Language Learners Of Tuvan, Rossina Soyan

World Languages and Literatures Faculty Publications and Presentations

Where do you start the course design for a minority language? One starting point is identifying and surveying a community of possible learners. This paper explores the needs of learners of Tuvan, a language spoken primarily in the Republic of Tuva, Southern Siberia, Russia. The study was conducted in two steps: an online questionnaire (March 2019) and semi-structured interviews (April 2019). The results showed a limited interest in Tuvan as a foreign language (13 responses) on the one hand, but a long-standing one on the other, more than two decades in some cases. The identified learner needs fell into three …

Ronald E. Mcnair Scholars Program Profiles And Abstracts 2020, Mcnair Scholars Program

McNair Symposium

This is the complete event program and provides presentation abstracts and biographies of McNair scholars and their mentors.

The Experiences Of Teachers Successfully Teaching Reading To Black Students, Kevin Michael Walker

Dissertations and Theses

Racist laws and subsequent educational policies and practices have resulted in schools in the United States failing to teach Black students reading. Historically, a racial achievement gap in elementary reading has existed throughout the history of the United States and has persisted to current times. As the population of students of color increases in the United States, we must investigate how teachers create equitable educational outcomes for students who have been historically underserved and oppressed by our education system. Teachers who are successful in ensuring our Black students have the opportunity to experience success in reading are actively disrupting the …

No Water, No Problem: Stage-Specific Metabolic Responses To Dehydration Stress In Annual Killifish Embryos, Daniel E. Zajic, Jonathon P. Nicholson, Jason Podrabsky

Biology Faculty Publications and Presentations

Annual killifish survive in temporary ponds by producing drought-tolerant embryos that can enter metabolic dormancy (diapause). Survival of dehydration stress is achieved through severe reduction of evaporative water loss. We assessed dehydration stress tolerance in diapausing and developing embryos. We measured oxygen consumption rates under aquatic and aerial conditions to test the hypothesis that there is a trade-off between water retention and oxygen permeability. Diapausing embryos survive dehydrating conditions for over 1.5 years, and post-diapause stages can survive over 100 days. Diapausing embryos respond to dehydration stress by increasing oxygen consumption rates while post-diapause embryos exhibit the same or reduced …

Metabolomics Analysis Of Annual Killifish (Austrofundulus Limnaeus) Embryos During Aerial Dehydration Stress, Daniel Zajic, Jason Podrabsky

Biology Faculty Publications and Presentations

The annual killifish, Austrofundulus limnaeus, survives in ephemeral ponds in the coastal deserts of Venezuela. Persistence through the dry season is dependent on drought-resistant eggs embedded in the pond sediments during the rainy season. The ability of these embryos to enter drastic metabolic dormancy (diapause) during normal development enables A. limnaeus to survive conditions lethal to most other aquatic vertebrates; critical to the survival of the species is the ability of embryos to survive months and perhaps years without access to liquid water. Little is known about the molecular mechanisms that aid in survival of the dry season. This study …

Image Object Extraction Based On Semantic Segmentation And Label Loss, Xiaoru Wang, Peirong Xu, Zhihong Yu, Fu Li

Electrical and Computer Engineering Faculty Publications and Presentations

Object extraction refers to the operation of obtaining an object area from an image based on a small amount of mark information given by users, which is a key step in image processing. In order to obtain a complete object profile, current methods usually require a large number of manual annotations, especially for objects with irregular contours. Since traditional algorithms rely on low-level pixel features without semantic information, and are based on obvious mathematical assumptions (ie, strong inductive bias), it is difficult to completely identify objects. At present, in order to improve the integrity of object extraction, semantic segmentation-based methods …

An Introductory Overview Of The Koyukon (Athabaskan) Verb, Jonathan K. Vincent

University Honors Theses

The Athabaskan languages of western North America are notorious for exhibiting highly complex verbal morphology. Koyukon, a language spoken along the Yukon River in Alaska, and a member of the Northern branch of the Athabaskan family, is one such example. This overview seeks to introduce students and language practitioners to the theoretical fundamentals of Koyukon's verbal morphology, including the parts that constitute the discontinuous verbal base, or 'verb theme,' as well as the inflectional and derivational processes under which a verb theme may go in order to render morphologically complex surface forms with richly engineered meaning. These principles are amply …

The Development Of Immigrants In Education, Kayla R. Guerrero

University Honors Theses

Being an essential part of American community, immigrants face several challenges as they adjust to life away from their home country. Many of those challenges begin when immigrant students start school in the United States education system. This exploratory research investigates the school experiences of immigrants and whether or not they were supported by their peers, teachers, parents, and community and how that influenced their development. Adult immigrants will reflect back on their education experience through interviews in order for the researcher to contribute a new foundation for immigrant student development research from the perspective of actual immigrants. This will …

The Performativity And Dynamics Of H.P. Grice's "Logic And Conversation": An Interdisciplinary Re-Conceptualization, Linnea Alexander

University Honors Theses

The following paper covers an interdisciplinary examination and re-conceptualization of philosopher H.P. Grice's Logic and Conversation. By way of interdisciplinary analysis and theory building, this paper breaks down Grice's philosophical understandings of conversational pragmatics as well as significant components of speech act theory, as put forth by philosopher J. L. Austin and revisited by J. R. Searle, and interactive frame theory as understood in sociocultural linguistic anthropology by Deborah Tannen and Cynthia Wallat. It interrogates shortcomings of Grice’s understanding of conversation and draws from speech act and frame theory to fill these shortcomings and expand on Grice's original …

How Does The Effect Of Hurricane Katrina Influence Healthcare Infrastructure And Resilience?, Sean Y. Wei

University Honors Theses

In August 2005, Hurricane Katrina brought upon the city of New Orleans, LA one of the costliest natural disasters in U.S. history. This paper looks at how hospitals were prepared before Katrina, responded to, and grappled with the aftermath of this natural disaster. In the aftermath of Katrina, careful investigation of the healthcare system along with its hospitals, physicians, patients, and residents allow us to take innovative measures and provide guidance to create recommendations to better monitor and care for individuals in the future. Frameworks of resilience theories, studies, and recommendations display how and why disaster planning is essential. The …

The Effects Of Variations In Confession Evidence And Need For Cognition On Jurors' Decisions, Kelsey S. Henderson, Lora M. Levett

Criminology and Criminal Justice Faculty Publications and Presentations

The reliability of a confession partially depends on the interrogation methods used and the confession’s content. Confronting suspects with evidence gives a suspect knowledge of nonpublic details, increasing the likelihood of a false confession (Gudjonsson & Pearse, 2011; Leo, 2009), and makes the confession harder to judge as more or less reliable. That is, if a confession is consistent with case facts but details of the crime were communicated to the suspect during interrogation, it is difficult to judge whether the confession is a product of the suspect’s knowledge of the crime or the details that were communicated during the …

A Unified Spectrum Formulation For Ofdm, Fbmc, And F-Ofdm, Xianzhen Yang, Siyuan Yan, Xiao Li, Fu Li

Electrical and Computer Engineering Faculty Publications and Presentations

Although orthogonal frequency division multiplexing (OFDM) has been standardized for 5G, filter bank multi-carrier (FBMC) and filtered orthogonal frequency division multiplexing (F-OFDM) remain competitive as candidates for future generations of wireless technologies beyond 5G, due to their reduced spectrum leakage and thus enhanced spectrum efficiency. In this article, we developed a unified spectrum expression for OFDM, FBMC, and F-OFDM, which provides comparative insights into those techniques. A representative sideband quantification is included at the end of this article.

Combating Covid On College Campuses: The Impact Of Structural Changes On Viral Transmissions, Jared Knofczynski, Aria Killebrew Bruehl, Ben Warner, Ryne Shelton

altREU Projects

One of the most significant issues in the COVID-19 pandemic is the reopening of schools while minimizing the transmission of coronavirus. Opportunities for evaluating the effectiveness of policies that might be utilized at such institutions are limited, as the necessary empirical data has not been gathered yet. Agent-based modeling, where various entities within an environment are simulated as agents, offers an opportunity to examine the effectiveness of various policies in a way that drastically minimizes the health and economic risks involved. Agent-based modeling is common within biology, ecology and other fields; and has seen some use within the coronavirus literature. …

Analyzing Network Topology For Ddos Mitigation Using The Abelian Sandpile Model, Bhavana Panchumarthi, Monroe Ame Stephenson

altREU Projects

A Distributed Denial of Service (DDoS) is a cyber attack, which is capable of triggering a cascading failure in the victim network. While DDoS attacks come in different forms, their general goal is to make a network's service unavailable to its users. A common, but risky, countermeasure is to blackhole or null route the source, or the attacked destination. When a server becomes a blackhole, or referred to as the sink in the paper, the data that is assigned to it "disappears" or gets deleted. Our research shows how mathematical modeling can propose an alternative blackholing strategy that could improve …

Update To Methodology For Setting Speed Limits In Urban Areas: Spr 827, Miguel Figliozzi, Avinash Unnikrishnan, Jaclyn S. Schaefer

Civil and Environmental Engineering Faculty Publications and Presentations

Many cities in Oregon are requesting a comprehensive review of speed zoning guidelines and existing procedures for streets with high volumes of active travelers. The main goal of this research is to develop recommendations for alternate criteria for setting speed zones on roadways with a high percentage of active travelers. Literature pertaining to factors affecting operating speed, speed and safety, speed management, and current speed zone practices is reviewed. The selection of the site and performance criteria is discussed. Qualities and characteristics of the speed data utilized are given. Distinctions between neighborhood and non-neighborhood greenways are noted. A before and …

A Practical Guide To Intergovernmental Entities In Oregon: Creating And Managing An Intergovernmental Entity Under Ors 190.010(5), Jim Johnson

National Policy Consensus Center Publications

The National Policy Consensus Center houses programs that work with government entities and their stakeholders to resolve public policy disputes or implement collaborative solutions to community problems. At times, government collaboration projects evolve into a more permanent arrangement that leads to formation of an intergovernmental entity. This guide addresses the most common questions the National Policy Consensus Center receives about forming intergovernmental entities. The guide provides general answers based on the center’s years of experience with collaborative groups, but it does not provide legal advice. It is meant as a tool for considering the use of an intergovernmental entity. You …

Publishing During The Pandemic: Strengthening Relationships, Removing Barriers, Reaching New Heights, Sherry Buchanan, Maika Yeigh

Library Faculty and Staff Publications and Presentations

Library-supported open access journal publishing has been flourishing amidst the pandemic, but we recognize that our work is rapidly evolving and will never be “business as usual” as we extend our services to meet new needs and challenges. PSU Library has always been empathetic and service-oriented, but now we find ourselves going the extra mile for editors and authors whose lives have been disrupted ‒ doing whatever it takes to maintain sustainable publishing and highlight social justice. Our focus is directly aimed at helping the underdogs and fostering change, reasserting our relationship with readers by working with authors and editors …

Connexin-46/50 In A Dynamic Lipid Environment Resolved By Cryoem At 1.9 Å, Jonathan A. Flores, Bassam G. Haddad, Kimberly A. Dolan, Janette Bernadette Myers, Craig C. Yoshioka, Jeremy Yoshioka, Daniel M. Zuckerman, Steve L. Reichow

Chemistry Faculty Publications and Presentations

Gap junctions establish direct pathways for cells to transfer metabolic and electrical messages. The local lipid environment is known to affect the structure, stability and intercellular channel activity of gap junctions; however, the molecular basis for these effects remains unknown. Here, we incorporate native connexin-46/50 (Cx46/50) intercellular channels into a dual lipid nanodisc system, mimicking a native cell-to-cell junction. Structural characterization by CryoEM reveals a lipid-induced stabilization to the channel, resulting in a 3D reconstruction at 1.9 Å resolution. Together with all-atom molecular dynamics simulations, it is shown that Cx46/50 in turn imparts long-range stabilization to the dynamic local lipid …

A New Look At The Quantum Liouville Theorem, P. T. Leung, G. I. Ni

Physics Faculty Publications and Presentations

We clarify certain confusions in the literature of the density operator in quantum mechanics, and demonstrate that the quantum Liouville theorem has the same form in both the Schrodinger and the Heisenberg pictures. Our starting point is to treat the density operator as an observable which has its specific time dependence in each of the two pictures. It is further shown that such a formulation will provide the exact correspondence between classical and quantum statistical mechanics with the Liouville theorem being interpreted as a conservation law, which is derivable from the equation of motion only in the quantum case.

The Scicommdiversity Travel Fellowship: The Challenge Of Creating A Sustainable Intervention, Alberto I. Roca, Cynthia-Lou Coleman, Tara S. Haelle, Danielle N. Lee

Communication Faculty Publications and Presentations

Diversifying a community requires outreach, recruitment, and retention which in this case targets the science communication (SciComm) workforce. Establishing a strategy to accomplish such diversification includes designing, launching, and sustaining the new intervention. Here we review the 6-years history of the DiverseScholar SciCommDiversity Travel Fellowship. This intervention was designed to build a community of minority science communicators that would interact with experienced professionals at the ScienceWriters conference. The travel fellowship reduces the financial burden of conference attendance while introducing the fellows to mentors who facilitate networking and knowledge-building during the event’s professional development opportunities. The first two years of the …