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Articles 1 - 30 of 1256
Full-Text Articles in Entire DC Network
Curriculum Change 2018-2019, Portland State University
Curriculum Change 2018-2019, Portland State University
Bulletin & Curriculum Change Documents
No abstract provided.
The Effect Of Rare Variants In Trem2 And Pld3 On Longitudinal Cognitive Function In The Wisconsin Registry For Alzheimer's Prevention, Corinne D. Engelman, Burcu F. Darst, Murat Bilgel, Eva Vasiljevic, Rebecca L. Koscik, Bruno M. Jedynak, Sterling C. Johnson
The Effect Of Rare Variants In Trem2 And Pld3 On Longitudinal Cognitive Function In The Wisconsin Registry For Alzheimer's Prevention, Corinne D. Engelman, Burcu F. Darst, Murat Bilgel, Eva Vasiljevic, Rebecca L. Koscik, Bruno M. Jedynak, Sterling C. Johnson
Mathematics and Statistics Faculty Publications and Presentations
Recent studies have found an association between functional variants in TREM2 and PLD3 and Alzheimer's disease (AD), but their effect on cognitive function is unknown. We examined the effect of these variants on cognitive function in 1449 participants from the Wisconsin Registry for Alzheimer's Prevention, a longitudinal study of initially asymptomatic adults, aged 36–73 years at baseline, enriched for a parental history of AD. A comprehensive cognitive test battery was performed at up to 5 visits. A factor analysis resulted in 6 cognitive factors that were standardized into z scores (∼N [0, 1]); the mean of these z scores was …
“Listen To What Your Jotería Is Saying”: Coverage Of The 2016 Orlando Shooting By English- And Spanish-Language Media, Julian A. Bugarín Quezada
“Listen To What Your Jotería Is Saying”: Coverage Of The 2016 Orlando Shooting By English- And Spanish-Language Media, Julian A. Bugarín Quezada
PSU McNair Scholars Online Journal
This study will focus on coverage of the 2016 Pulse nightclub shooting by multiple English- and Spanish-language media sources in the month following the attack. The study assesses the extent through which following the shooting, coverage of the event often ignored the victims’ and survivors’ queerness, Latinidad, or both. Did these actions diminish the intersectional experiences of queer Latinx people? Were stories of the victims and survivors of the shooting accurately represented? How did this event shape queerness, gender identity, and Latinidad in the year after the attack? Through the frameworks of Latino critical race theory and queer theory, this …
Workers Of The Word Unite!: The Powell's Books Union Organizing Campaign, 1998-2001, Ryan Thomas Wisnor
Workers Of The Word Unite!: The Powell's Books Union Organizing Campaign, 1998-2001, Ryan Thomas Wisnor
Dissertations and Theses
The labor movement's groundswell in the 1990s accompanied a period of intense competition and conglomeration within the retail book sector. Unexpectedly, the intersection of these two trends produced two dozen union drives across the country between 1996 and 2004 at large retail bookstores, including Borders and Barnes & Noble. Historians have yet to fully examine these retail organizing contests or recount their contributions to the labor movement and its history, including booksellers' pioneering use of the internet as an organizing tool. This thesis focuses on the aspirations, tactics, and contributions of booksellers in their struggles to unionize their workplaces, while …
The Downward Spiral: Postmodern Consciousness As Buddhist Metaphysics In The Dark Souls Video Game Series, Paolo Xavier Machado Menuez
The Downward Spiral: Postmodern Consciousness As Buddhist Metaphysics In The Dark Souls Video Game Series, Paolo Xavier Machado Menuez
Dissertations and Theses
This paper is about locating the meaning of a series of games known as the Dark Souls series in relation to contemporary social conditions in Japan. I argue that the game should be thought of as an emblem of the current cultural zeitgeist, in a similar way one might identify something like Jack Kerouac's The Dharma Bums as an emblem of the counter cultural 60s. I argue that the Dark Souls series expresses in allegorical form an anxiety about living in a time where the meaning of our everyday actions and even society itself has become significantly destabilized. It does …
Hospital Variation In Costs – A Challenge To The Value Proposition, Aaron B. Caughey, Jonathan M. Snowden
Hospital Variation In Costs – A Challenge To The Value Proposition, Aaron B. Caughey, Jonathan M. Snowden
OHSU-PSU School of Public Health Faculty Publications and Presentations
Mini Commentary on 2017-OG-19978R1: Hospital Variation in Cost of Childbirth and Contributing Factors: A Cross-Sectional Study. To view this article visit https://doi.org/10.1111/1471-0528.15007.
Investigating The Role Of Small Noncoding Rnas In Vertebrate Anoxia Tolerance, Claire Louise Riggs
Investigating The Role Of Small Noncoding Rnas In Vertebrate Anoxia Tolerance, Claire Louise Riggs
Dissertations and Theses
Very few vertebrates survive extended periods of time without oxygen. Entry into metabolic depression is central to surviving anoxia, which is supported by overall suppression of protein synthesis, yet requires increased expression of specific proteins. Studying the rapid and complex regulation of gene expression associated with survival of anoxia may uncover new mechanisms of cellular biology and transform our understanding of cells, as well as inform prevention and treatment of heart attack and stroke in humans. Small non-coding RNAs (sncRNAs) have emerged as regulators of gene expression that can be rapidly employed, can target individual genes or suites of genes, …
Treatment And Prevention Of Opioid Use Disorder: Challenges And Opportunities, Dennis Mccarty, Kelsey C. Priest, P. Todd Korthuis
Treatment And Prevention Of Opioid Use Disorder: Challenges And Opportunities, Dennis Mccarty, Kelsey C. Priest, P. Todd Korthuis
OHSU-PSU School of Public Health Faculty Publications and Presentations
Treatment for opioid use disorder in the United States evolved in response to changing federal policy and advances in science. Inpatient care began in 1935 with the US Public Health Service Hospitals in Lexington, Kentucky, and Fort Worth, Texas. Outpatient clinics emerged in the 1960s to provide aftercare. Research advances led to opioid agonist and opioid antagonist therapies. When patients complete opioid withdrawal, return to use is often rapid and frequently deadly. US and international authorities recommend opioid agonist therapy (i.e., methadone or buprenorphine). Opioid antagonist therapy (i.e., extended-release naltrexone) may also inhibit return to use. Prevention efforts emphasize public …
Microstructure And Mechanical Properties Of Additive Manufacturing Titanium Alloys After Thermal Processing, Ahmet Alptug Tanrikulu
Microstructure And Mechanical Properties Of Additive Manufacturing Titanium Alloys After Thermal Processing, Ahmet Alptug Tanrikulu
Dissertations and Theses
Titanium alloys are widely used for aerospace and biomaterial applications since their high specific strength, and high corrosion resistivity. Besides these properties, titanium is an excellent biocompatible material widely used for internal body implants. Because the products have complex geometries in both applications, Additive Manufacturing (AM) methods have been recently applied for production. AM methods can process a direct 3-D shape of the final product, decrease total production time and cost. However, high residual stress of the final product limits the application of AM components, especially the ones that are exposed to cyclic loading. In the present study, the initial …
Responsible Pet Ownership: Dog Parks And Demographic Change In Portland, Oregon, Matthew Harris
Responsible Pet Ownership: Dog Parks And Demographic Change In Portland, Oregon, Matthew Harris
Dissertations and Theses
Dog parks are the fastest growing type of park in U.S. cities; however, their increasing popularity has been met with increasing criticism of pets in public space. Dogs have shown to be a deep source of neighborhood conflict, and the provision of dog parks, or off-leash areas, is a seemingly intractable controversy for city officials. In 2003, Portland, Oregon established a network of 33 off-leash areas which remains the second largest both in count and per capita in the country. The purpose of my research is to understand the public debate over off leash dogs during the establishment of Portland's …
Living Between Worlds: Arrival And Adjustment Experiences Of The Somali Community In Portland, Oregon, Neil A. Panchmatia
Living Between Worlds: Arrival And Adjustment Experiences Of The Somali Community In Portland, Oregon, Neil A. Panchmatia
Dissertations and Theses
Since the early 1990s Oregon has witnessed an economic and politically based influx of immigrants and refugees. Most refugees resettled in Oregon initially settled in the greater Portland metro area, and Portland currently ranks eleventh among cities around the country that resettle international refugees. This research focuses on the reception and resettlement experiences of one sub-group of refugees and immigrants: those from Somalia. In the Portland area, Somalis are a largely marginalized social group. They live on the peripheries of society and are often segregated (physically as well as culturally) in what is historically a racially and culturally homogenous state. …
Spatial Transferability Assessment Of A Composite Walkability Index: The Pedestrian Index Of The Environment (Pie), Gabriel Lefebvre-Ropars, Catherine Morency, Patrick A. Singleton, Kelly J. Clifton
Spatial Transferability Assessment Of A Composite Walkability Index: The Pedestrian Index Of The Environment (Pie), Gabriel Lefebvre-Ropars, Catherine Morency, Patrick A. Singleton, Kelly J. Clifton
Civil and Environmental Engineering Faculty Publications and Presentations
This paper analyzes the transferability of a composite walkability index, the Pedestrian Index of the Environment (PIE), to the Greater Montréal Area (GMA). The PIE was developed in Portland, Oregon, and is based on proprietary data. It combines six urban form variables into a score ranging from 20 to 100. The measure introduces several methodological refinements which have not been applied concurrently in previous efforts: a wide coverage of the different dimensions of the urban form, together with the use of a distance-based decay function and modelling-based weighing of the variables.
Patient-Provider Relationship And Perceived Provider Weight Bias Among American Indians And Alaska Natives, Kelly L. Gonzales, Ginny Garcia, Michelle M. Jacob, C. Muller, Lonnie A. Nelson, Spero M. Manson
Patient-Provider Relationship And Perceived Provider Weight Bias Among American Indians And Alaska Natives, Kelly L. Gonzales, Ginny Garcia, Michelle M. Jacob, C. Muller, Lonnie A. Nelson, Spero M. Manson
OHSU-PSU School of Public Health Faculty Publications and Presentations
Objective The objective of this study was to examine patient–provider relationships among American Indians and Alaska Native (AI/AN) patients by examining associations between patient activation, perceived provider weight bias and working alliance. Patient activation is generally defined as having the knowledge, skills and confidence to manage one's health.
Methods Among a sample of 87 AI/AN adults presenting for general medical care at an urban clinic in the north-west region of the USA, ordinary least squares regression analysis was completed to examine associations.
Results Better working alliance scores were associated with increased patient activation, while perceived provider weight bias was associated …
Drinking Motives And Alcohol Use: The Serve Study Of U.S. Current And Former Service Members, Cynthia D. Mohr, Cameron T. Mccabe, Sarah N. Haverly, Leslie B. Hammer, Kathleen F. Carlson
Drinking Motives And Alcohol Use: The Serve Study Of U.S. Current And Former Service Members, Cynthia D. Mohr, Cameron T. Mccabe, Sarah N. Haverly, Leslie B. Hammer, Kathleen F. Carlson
Psychology Faculty Publications and Presentations
Objective: Hazardous drinking in the armed forces is a signifi cant problem. Alcohol use motivations, known risk factors for problem drinking, have been underexplored in this population. Our study extends knowledge about drinking motives among current and former U.S. service members and provides recommendations on their utility in identifying alcohol-related problems by examining the factor structure of multidimensional drinking motives and their association to alcohol use.
Method: Post-9/11 separated service members and current reservists were recruited from 35 Oregon employers to participate in a workplace study of supervisor support. The resulting sample (N = 509; 84% male; mean age = …
Translation And Transformation: Uncovering The Source Of Alchemy’S Association With Magic Through A Study Of Its Translation Into Latin In The High Medieval Period, Morgan Taylor Greer
Translation And Transformation: Uncovering The Source Of Alchemy’S Association With Magic Through A Study Of Its Translation Into Latin In The High Medieval Period, Morgan Taylor Greer
University Honors Theses
Alchemy is one of the longest lived ideas and practices in intellectual history and one of the most habitually misunderstood. Until the 1950's historians of science considered alchemy to be pseudoscience or a facet of magic. Since then historians of alchemy have produced a considerable body of work that is mostly concerned with making corrections and establishing the scientific character of alchemy. Alchemists made significant contributions to chemistry, theology, and medicine. Alchemy itself influenced art, literature, and pop culture. The current literature on alchemy lacks one component, a study of the source of alchemy’s association with magic and relegation to …
Structural Behavior Of Lap Shear Connections With Thermally Insulating Filler Plates, Salih Qasim Mahmood
Structural Behavior Of Lap Shear Connections With Thermally Insulating Filler Plates, Salih Qasim Mahmood
Dissertations and Theses
This research consists of experimental load tests and numerical simulations of structural steel connections with various filler materials to study the effect of non-steel fillers on the connection strength. Non-steel fillers are used in the steel connections to provide thermal insulation by reducing thermal bridging. Eight specimens having steel and polypropylene filler plates of various thicknesses were tested in the laboratory. The collected data were compared to a Finite Element Analysis (FEA) using ABAQUS to validate the numerical results. After validation, three parametric studies were conducted using ABAQUS to provide insight into general behavior of connections with a variety of …
Exploring The Determinants Of Vulnerable Road Users' Crash Severity In State Roads, Àlvaro Alfonso Caviedes Cómbita
Exploring The Determinants Of Vulnerable Road Users' Crash Severity In State Roads, Àlvaro Alfonso Caviedes Cómbita
Dissertations and Theses
Pedestrians and bicyclists are the most vulnerable road users and suffer the most severe consequences when crashes take place. An extensive literature is available for crash severity in terms of driver safety, but fewer studies have explored non-motorized users' crash severity. Furthermore, most research efforts have examined pedestrian and bicyclist crash severity in urban areas. This study focuses on state roads (mostly outside major urban areas) and aims to identify contributing risk factors of fatal and severe crashes involving pedestrians and bicyclists in state roads. Two ordinal regression models were developed (one for pedestrian and the other for bicyclist crashes) …
How Do Slums Change The Relationship Between Urbanization And The Carbon Intensity Of Well-Being?, Julius Mcgee, Christina Ergas, Patrick Trent Greiner, Matthew Thomas Clement
How Do Slums Change The Relationship Between Urbanization And The Carbon Intensity Of Well-Being?, Julius Mcgee, Christina Ergas, Patrick Trent Greiner, Matthew Thomas Clement
Sociology Faculty Publications and Presentations
This study examines how the relationship between urbanization (measured as the percentage of total population living in urban areas) and the carbon intensity of well-being (CIWB) (measured as a ratio of carbon dioxide emissions and life expectancy) in most nations from 1960±2013 varies based on the economic context and whereabouts of a substantial portion of a nation's urban population. To accomplish this, we use the United Nations' (UN) definition of slum households to identify developing countries that have substantial slum populations, and estimate a Prais-Winsten regression model with panel-corrected standard errors (PCSE), allowing for disturbances that are heteroskedastic and contemporaneously …
The Impact Of Religious Diversity Management Strategies On Employee Attitudes, Moises E. Rios Jr.
The Impact Of Religious Diversity Management Strategies On Employee Attitudes, Moises E. Rios Jr.
University Honors Theses
The following research article utilizes the four frameworks (faith-avoiding, faith-based, faith-safe, faith-friendly) discussed by previous researchers Miller and Ewest (2015) in order to evaluate the effects of religious diversity management strategies on varying employee attitudes. An evaluation of the previous research in the field of religion and its effects on management strategies with a basis in title VII laws is also addressed. Based on a sample of 300 participants, significant results in the frameworks and their corresponding variables were found. Of the four frameworks utilized the faith-friendly framework was found to be by far the most favored of all regardless …
Genetic Analysis Of The Major Capsid Protein Of The Archaeal Fusellovirus Ssv1: Mutational Flexibility And Conformational Change, Eric A. Iverson, David A. Goodman, Madeline E. Gorchels, Kenneth M. Stedman
Genetic Analysis Of The Major Capsid Protein Of The Archaeal Fusellovirus Ssv1: Mutational Flexibility And Conformational Change, Eric A. Iverson, David A. Goodman, Madeline E. Gorchels, Kenneth M. Stedman
Biology Faculty Publications and Presentations
Viruses with spindle or lemon-shaped virions are rare in the world of viruses, but are common in viruses of archaeal extremophiles, possibly due to the extreme conditions in which they thrive. However, the structural and genetic basis for the unique spindle shape is unknown. The best-studied spindle-shaped virus, Sulfolobus Spindle-shaped Virus 1 (SSV1), is composed mostly of the major capsid protein VP1. Similar to many other viruses, proteolytic cleavage of VP1 is thought to be critical for virion formation. Unlike half of the genes in SSV1, including the minor capsid protein gene VP3, the VP1 gene does not tolerate …
Designing In-Headset Authoring Tools For Virtual Reality Video, Cuong Nguyen
Designing In-Headset Authoring Tools For Virtual Reality Video, Cuong Nguyen
Dissertations and Theses
Virtual Reality (VR) video is emerging as a new art form. Viewing VR video requires wearing the VR headset to fully experience the immersive surrounding of the content. However, the novel viewing experience of VR video creates new challenges and requirements for conventional video authoring tools, which were designed mainly for working with normal video on a desktop display. Designing effective authoring tools for VR video requires intuitive video interfaces specific to VR.
This dissertation develops new workflows and systems that enable filmmakers to create and improve VR video while fully immersed in a VR headset. We introduce a series …
Sleep And Young Children's Development Of Self-Regulation And Academic Skills, Emily Michelle Weiss
Sleep And Young Children's Development Of Self-Regulation And Academic Skills, Emily Michelle Weiss
Dissertations and Theses
School readiness incorporates children's academic abilities and their ability to self-regulate in the classroom. Prior research shows that sleep is related to children's development of these skills, although the mechanisms through which sleep affects school readiness are not well understood. Research also indicates that economically disadvantaged children and children of color may have poorer academic and regulatory skills at school entry and may sleep less and sleep less well on a regular basis.
The current study explores the role of sleep quantity and quality in young children's development of two skills critical for school success: self-regulation and academic abilities. This …
Technology Planning For Aligning Emerging Business Models And Regulatory Structures: The Case Of Electric Vehicle Charging And The Smart Grid, Kelly R. Cowan
Technology Planning For Aligning Emerging Business Models And Regulatory Structures: The Case Of Electric Vehicle Charging And The Smart Grid, Kelly R. Cowan
Dissertations and Theses
Smart grid has been described as the Energy Internet: Where Energy Technology meets Information Technology. The incorporation of such technology into vast existing utility infrastructures offers many advantages, including possibilities for new smart appliances, energy management systems, better integration of renewable energy, value added services, and new business models, both for supply- and demand-side management. Smart grid also replaces aging utility technologies that are becoming increasingly unreliable, as the average ages for many critical components in utility systems now exceed their original design lives. However, while smart grid offers the promise of revolutionizing utility delivery systems, many questions remain about …
Utilizing High-Resolution Archived Transit Data To Study Before-And-After Travel-Speed And Travel-Time Conditions, Travis Bradley Glick
Utilizing High-Resolution Archived Transit Data To Study Before-And-After Travel-Speed And Travel-Time Conditions, Travis Bradley Glick
Dissertations and Theses
Travel times, operating speeds, and service reliability influence costs and service attractiveness. This paper outlines an approach to quantify how these metrics change after a modification of roadway design or transit routes using archived transit data. The Tri-County Metropolitan Transportation District of Oregon (TriMet), Portland's public transportation provider, archives automatic vehicle location (AVL) data for all buses as part of their bus dispatch system (BDS). This research combines three types of AVL data (stop event, stop disturbance, and high-resolution) to create a detailed account of transit behavior; this probe data gives insights into the behavior of transit as well as …
Non-Native Mangroves (Rhizophora Mangle) Of Moloka'i, Hawai'i: A Socio-Ecological Analysis, Casey Lynette Lewis
Non-Native Mangroves (Rhizophora Mangle) Of Moloka'i, Hawai'i: A Socio-Ecological Analysis, Casey Lynette Lewis
Dissertations and Theses
The formation of novel ecosystems by non-native species poses management challenges that are both socially and ecologically complex. This complexity necessitates consideration of both ecological dynamics and social attitudes and perceptions. Red mangrove propagules were introduced to Moloka'i, Hawaii in 1902 to mitigate the effects of soil erosion and they have since spread along the coast and to adjacent islands creating novel habitat. Non-native mangroves in Hawai'i present a unique case study to examine diverse social attitudes and perceptions resulting from a long history of land cover transformations on the Hawaiian Islands, socio-cultural diversity of involved stakeholders, and the potential …
Copper Nanowires Synthesis And Self-Assembly For Interconnect Applications, Srikar Rao Darmakkolla
Copper Nanowires Synthesis And Self-Assembly For Interconnect Applications, Srikar Rao Darmakkolla
Dissertations and Theses
One-dimensional (1D) nanomaterial self-assembly offers an excellent approach to the fabrication of highly complex nanodevices. Despite considerable effort and research, precisely controlling the orientation and positioning of nanowires (NWs) on a large-scale area and assembling into a functional device is still a state of the art problem. This thesis focuses on the dimensionally controlled copper nanowires (Cu NWs) synthesis, and magnetic field assisted self-assembly of cupronickel nanowires (Cu/Ni NWs) into interconnect structures on a carbon doped silicon dioxide (CDO) wafer.
CDO is a low dielectric constant (k) material used for copper interconnects in multilayered complex integrated circuits (ICs). …
Open Textbook Publishing: Accelerating Scholarly Research And The Impact On Students, Karen Bjork
Open Textbook Publishing: Accelerating Scholarly Research And The Impact On Students, Karen Bjork
Library Faculty Publications and Presentations
This presentation discusses the rising cost of textbooks in higher education, provides background on how Portland State University Library got started in open textbook publishing, discusses where we are with our program, provides detail on the services offered, and looks at the impact of open access textbooks on faculty and students.
Faculty Senate Monthly Packet December 2017, Portland State University Faculty Senate
Faculty Senate Monthly Packet December 2017, Portland State University Faculty Senate
Faculty Senate Monthly Packets
The December 2017 Monthly packet includes the December agenda and appendices and the Faculty Senate minutes and attachments from the meeting held November 6, 2017.
Investigation Of Aerosol Optical And Chemical Properties Using Humidity Controlled Cavity Ring-Down Spectroscopy, Xijing Zhu
Dissertations and Theses
Scientists have been observing a change in the climate since the beginning of the 20th century that cannot be attributed to any of the natural influences of the past. Natural and anthropogenic substances and processes perturb the Earth's energy budget, contributing to climate change. In particular, aerosols (particles suspended in air) have long been recognized to be important in processes throughout the atmosphere that affect climate. They directly influence the radiative balance of the Earth's atmosphere, affect cloud formation and properties, and are also key air pollutants that contribute to a variety of respiratory and cardiovascular diseases. Despite their …
Physics Based Approach For Seafloor Classification, Phu Duy Nguyen
Physics Based Approach For Seafloor Classification, Phu Duy Nguyen
Dissertations and Theses
The seafloor properties are of high importance for many applications such as marine biology, oil and gas exploration, laying cables, dredging operations and off-shore construction. Several approaches exist to classify the properties of the seabed. These include taking direct samples of the seabed (e.g., coring), however, these methods are costly and slow. Underwater acoustic remote sensing techniques are of interest because they are lower cost and faster. The information about the seabed properties can be extracted by studying the energy of single beam echo sounders (SBES). This can be done by either phenomenological or numerical methods [1], [2]. This research …