Digital Commons Network^™

Are Managed Retreat Programs Successful And Just? A Global Mapping Of Success Typologies, Justice Dimensions, And Trade-Offs, Idowu Ajibade, Meghan Sullivan, Chris Lower, Lizzie Yarina, Allie Reilly

Geography Faculty Publications and Presentations

As managed retreat programs expand across the globe, there is an urgent need to assess whether these programs are reducing exposure to climatic hazards, enhancing adaptive capacity, and improving the living conditions of communities in a just and equitable manner or are they exacerbating existing risks and vulnerabilities? Strictly speaking, are retreat programs successful? Using an expansive intersectional justice approach to examine 138 post-resettlement case studies published between 2000 and 2021 across the Global North and South, we identified five typologies of success – techno-managerial, eco-restorative, compensatory, reformative, and transformative – and their trade-offs and synergies. Our meta-analysis incorporated a …

Understanding Perspectives On Climate Hazards, Water Management, And Adaptive Transformation In An Exurban Community, Alexander Ross, Heejun Chang, Alida Cantor

Geography Faculty Publications and Presentations

Climate change and exurban development pose challenges for water resources. This paper examines the perceptions and adaptive responses to those stressors among stakeholders engaging in exurban water management. Drawing on 42 interviews with planners, water managers, and local experts, we analyze perspectives on water-related hazards in the Hood River watershed, Oregon, and identify contrasting approaches to adaptation. Interview subjects identified climate-related hazards as most significant, with relatively less – although not insignificant – concern about development. Interviewees understood the role of the Watershed Group in four different ways: resistance to change, sustaining the present system, adapting to improve resilience, or …

Skills Gap In The Information Technology Sector In Kosovo, Erze Ahmeti

Theses

The main focus of this research project is to identify the extent to which companies in the IT sector in Kosovo are being affected by the skill gaps and the ways through which they are trying to bridge these skill gaps. While the IT industry in Kosovo shows great growth potential, the skill gap appears to be a prevailing problem that hinders this sector’s development. The study analyzes the implications of the skill gap for the growth of private companies and the sector in general; as well as the ways used by the sector to narrow the skill gap. To …

Unreliable Automated Complete Blood Count Results: Causes, Recognition, And Resolution, Gene Gulati, Guldeep Uppal, Jerald Z. Gong

Department of Pathology, Anatomy, and Cell Biology Faculty Papers

Automated hematology analyzers generate accurate complete blood counts (CBC) results on nearly all specimens. However, every laboratory encounters, at times, some specimens that yield no or inaccurate result(s) for one or more CBC parameters even when the analyzer is functioning properly and the manufacturer's instructions are followed to the letter. Inaccurate results, which may adversely affect patient care, are clinically unreliable and require the attention of laboratory professionals. Laboratory professionals must recognize unreliable results, determine the possible cause(s), and be acquainted with the ways to obtain reliable results on such specimens. We present a concise overview of the known causes …

Patient-Specific Genome-Scale Metabolic Models For Individualized Predictions Of Liver Disease, Alexandra Manchel, Jan B. Hoek, Ramon Bataller, Radhakrishnan Mahadevan, Rajanikanth Vadigepalli

Department of Pathology, Anatomy, and Cell Biology Faculty Papers

The prevalence of liver disease is steadily increasing, coupled with the limited availability of therapeutic treatments. Recent literature points to metabolic reprogramming as a key feature of liver failure. Hence, we sought to uncover the metabolic pathways and mechanisms associated with liver disease and acute liver failure. We generated patient-specific genome scale metabolic models by integrating RNA-seq data from patient liver samples with a generalized human metabolic model. Flux balance analysis simulations showed a distinct separation of non-alcohol associated and alcohol-associated disease states. Our analysis suggests that the alcohol associated liver has an increased flux through nucleotide and glycerophospholipid metabolic …

The Performance Of Biomimicry Architecture In Sustainable Design For A Mixed-Use Workplace In Shanghai (Sustainable Design), Weihong Liu

Theses

Abstract Sustainable architecture design is becoming more and more popular all over the world, especially in China. Active sustainable strategies play an important role in sustainable architecture design such as solar panels, wind turbines, and roof gardens. However, this Thesis will find some new passive ways to improve the sustainability of buildings by proving bionic technology. The thesis seeks to integrate living organisms into buildings to improve the sustainability of buildings and generate sustainable resources. This main focus is biomimetics. The technology used in the design of architecture sustainability. Bionics or biomimicry refers to artificial processes or systems that mimic …

Dean's Update, September 2022, Jerry L. Nadler

SOM Dean's Research Newsletter

No abstract provided.

21st Century Learning Ecosystem Opportunities: Research And Findings, Jill Castek, Kathy Harris, Gloria Jacobs, Jen Vanek,

21CLEO Presentations and Publications

The 21st Century Learning Ecosystem Opportunities (21 CLEO) research was launched to increase understanding of the complexities of learning ecosystems. This report is a summary that aims to share insights about working learners employed in frontline service work, the types of education and training initiatives offered to them, and the outcomes from participating in such employer supported education and training initiatives. The findings shared here are drawn from the collection of presentations, blog posts, and other publications through which we have shared our insights along the way (cited throughout), as well as new material developed as part of our final …

Ecological Homogenization Of Oil Properties In The American Residential Macrosystem, Christopher D. Ryan, Peter M. Groffman, J. Morgan Grove, Sharon J. Hall, James B. Heffernan, Sarah E. Hobbie, Dexter H. Locke, Jennifer L. Morse, Rinku Roy Chowdhury, Tara Trammell, Multiple Additional Authors

Environmental Science and Management Faculty Publications and Presentations

The conversion of native ecosystems to residential ecosystems dominated by lawns has been a prevailing land-use change in the United States over the past 70 years. Similar development patterns and management of residential ecosystems cause many characteristics of residential ecosystems to be more similar to each other across broad continental gradients than that of former native ecosystems. For instance, similar lawn management by irrigation and fertilizer applications has the potential to influence soil carbon (C) and nitrogen (N) pools and processes. We evaluated the mean and variability of total soil C and N stocks, potential net N mineralization and nitrification, …

Predicting Springtime Herbicide Exposure Across Multiple Scales In Pacific Coastal Drainages (Oregon, Usa), Kaegan Michael Scully-Engelmeyer, Elise F. Granek

Environmental Science and Management Faculty Publications and Presentations

Identification of non-point sources of watershed pollution such as pesticide runoff is challenging due to spatial and temporal variation in landscape patterns of land use and environmental conditions. Regional case study monitoring investigations can document region-specific conditions and processes to inform managers about pesticide movement through watersheds. Additionally, modeling field-collected data within these contexts can be used to predict pesticide presence in un-sampled areas. During a 45 day period in the spring of 2019, we sampled sixteen coastal watersheds in Oregon, USA for current-use water-borne herbicides commonly used in forestland vegetation management. At 80 % of sampling locations, at least …

High Prevalence Of Osteopathy In Chronic Pancreatitis: A Cross-Sectional Analysis From The Proceed Study, Phil A Hart, Dhiraj Yadav, Liang Li, Savi Appana, William Fisher, Evan Fogel, Chris E Forsmark, Walter G Park, Stephen Pandol, Mark D Topazian, Stephen K Van Den Eden, Santhi Swaroop Vege, David Bradley, Jose Serrano, Darwin L Conwell

Center for Medical Ethics and Health Policy Staff Publications

Background & aims: Chronic pancreatitis (CP) is associated with osteopathy (osteoporosis or osteopenia). However, existing literature is mostly limited to retrospective or administrative studies that have not clearly defined the prevalence and risk factors. Our aim was to identify patient- and disease-related associations with osteopathy in a prospective cohort study of CP.

Methods: We studied 282 subjects with definitive CP enrolled in the PROCEED study who had a baseline dual-energy X-ray absorptiometry (DXA) scan. Osteopenia and osteoporosis were defined using the lowest T-scores. Clinical data were collected using standardized case report forms. Comparisons were performed with a multivariate logistic regression …

Book Review Of: The Concealed Influence Of Custom: Hume's Treatise From The Inside Out, Angela M. Coventry

Philosophy Faculty Publications and Presentations

Review of the book, Jay L. Garfield, The Concealed Influence of Custom: Hume's Treatise from the Inside Out, Oxford University Press, 2019.

Can Fiscal Recentralization Strengthen Local Government? The Case Of Thailand, Bruce Gilley, Sirisak Laochankham

Political Science Faculty Publications and Presentations

Thailand in 2018 became the latest developing country to impose mandatory rules on its fiscal policy that included a national limit on the accumulation of public debt and direct control of local government budgets. Such fiscal recentralization is generally assumed in the literature on multi-level finance to weaken local economic, fiscal, and policy conditions. Yet a newer emphasis in this literature asserts the potential value of central governments in steering and constraining local governments through public finance. Such central steering may strengthen rather than weaken local governments via fiscal, economic, and policy conditions. In this paper, we use the emergent …

Raps Sheet, September 2022, Retirement Association Of Portland State

RAPS Sheet: Monthly Newsletter

No abstract provided.

Shaheen Bagh: Muslim Women Contesting And Theorizing Citizenship And Belonging During Covid-19, Priya Kapoor

International & Global Studies Faculty Publications and Presentations

This paper documents an important slice of global South COVID-19 history, of primarily Muslim women's protests against the Indian Government and Legislature for taking away their constitutional rights as citizens. The Shaheen Bagh mobilization has already become an important disruption in contemporary Indian history stirring public intellectuals to probe the question: “who is a citizen of India?” in their scholarship and public-community work. By virtue of the disruption the event has caused in the enactment of the citizenship law, including other biometric directives, CAA-NRC-NPR, it has ceased to be regarded a minority or marginalized occurrence. This paper examines the writings …

Do Parents Matter For Student Loan Repayment After Graduation?, Byeongdon Oh

Sociology Faculty Publications and Presentations

Previous studies suggest that a college degree is the great equalizer leveling the playing field. However, the rapidly growing educational debt of college graduates might restrict their life chances throughout adulthood, particularly for those raised in socioeconomically disadvantaged families. This study uses data from the National Survey of College Graduates to examine whether parents’ socioeconomic status is related to their children’s student loan repayment after graduation. Holding the amount borrowed for completing higher education constant, college graduates with less educated parents hold a larger amount of educational debt in adulthood compared with their counterparts with more educated parents. The association …

Equity And Exclusion Issues In Cashless Fare Payment Systems For Public Transportation, Aaron Golub, Anne Brown, Candace Brakewood, John Macarthur, Sangwan Lee, Abubakr Ziedan

Urban Studies and Planning Faculty Publications and Presentations

Many transit agencies in the United States plan to automate their fare collection and limit–or even eliminate–the use of cash fares, with the goals of expediting boarding, collecting data, and lowering costs. Yet about 10% of US adults lack a bank account or credit card, and many rely on restrictive cellphone data plans or do not have access to the internet or a smartphone. These riders will find it difficult to access transit in the future. This paper examines transit users’ experiences with fare technologies using a survey of riders in three cities. Our analysis reveals which riders are most …

Issues With Variability In Electronic Health Record Data About Race And Ethnicity: Descriptive Analysis Of The National Covid Cohort Collaborative Data Enclave, Lily A. Cook Ma, David A. Dorr, Nicole G. Weiskopf, Nisha Mathews, Kelly L. Gonzales, Adam Wilcox, Charisse Madlock-Brown, N3c Consortium

OHSU-PSU School of Public Health Faculty Publications and Presentations

Background:The adverse impact of COVID-19 on marginalized and under-resourced communities of color has highlighted the need for accurate, comprehensive race and ethnicity data. However, a significant technical challenge related to integrating race and ethnicity data in large, consolidated databases is the lack of consistency in how data about race and ethnicity are collected and structured by health care organizations.

Objective:This study aims to evaluate and describe variations in how health care systems collect and report information about the race and ethnicity of their patients and to assess how well these data are integrated when aggregated into a large clinical database. …

Evaluating The Effect Of San Francisco’S Paid Parental Leave Ordinance On Birth Outcomesf, Deborah Karasek, Sarah Raifman, Rita Hamad, William H. Dow, Julia M. Goodman

OHSU-PSU School of Public Health Faculty Publications and Presentations

Since 2017, San Francisco’s Paid Parental Leave Ordinance (PPLO) has allowed parents who work for private-sector employers to take 6 weeks of fully paid postnatal parental leave. Previous studies have linked paid parental leave with health improvements for birthing people and babies, although evidence for birth outcomes is limited. We hypothesized that the PPLO may have improved birth outcomes via reduced stress during pregnancy due to anticipation of increased financial security and postnatal leave. We used linked California birth certificate and hospital discharge records from January 2013 to December 2018 (n = 1,420,781). We used quasi-experimental difference-in-difference (DD) models to …

A New Classification Network For Diagnosing Alzheimer’S Disease In Class-Imbalance Mri Datasets, Ziyang Chen, Zhuowei Wang, Meng Zhao, Qin Zhao, Xuehu Liang, Jiajian Li, Xiaoyu Song

Electrical and Computer Engineering Faculty Publications and Presentations

Automatic identification of Alzheimer’s Disease (AD) through magnetic resonance imaging (MRI) data can eectively assist to doctors diagnose and treat Alzheimer’s. Current methods improve the accuracy of AD recognition, but they are insufficient to address the challenge of small interclass and large intraclass dierences. Some studies attempt to embed patch-level structure in neural networks which enhance pathologic details, but the enormous size and time complexity render these methods unfavorable. Furthermore, several self-attention mechanisms fail to provide contextual information to represent discriminative regions, which limits the performance of these classifiers. In addition, the current loss function is adversely aected by outliers …

Adding Chinese Herbal Medicine To Routine Care Is Associated With A Lower Risk Of Rheumatoid Arthritis Among Patients With Asthma: A Population-Based Retrospective Cohort Study, Wei-Chiao Chang, Hanoch Livneh, Wei-Jen Chen, Chang-Cheng Hsieh, Yu-Han Wang, Ming-Chi Lu, How-Ran Guo, Tzung-Yi Tsai

Counselor Education Faculty Publications and Presentations

Objective: Due to the shared pathogenesis of asthma and rheumatoid arthritis (RA), patients with asthma were found to have a higher risk of RA. While the benefits and safety of Chinese herbal medicine (CHM) for asthma have been reported, the scientific evidence regarding its effect on RA is limited. This longitudinal cohort study aimed to determine the relation between CHM use and RA risk in patients with asthma.

Methods: Using the nationwide claims data, we enrolled 33,963 patients 20–80 years of age who were newly diagnosed with asthma and simultaneously free of RA between 2000 and 2007. From this sample, …

Analyzing Microarchitectural Residue In Various Privilege Strata To Identify Computing Tasks, Tor J. Langehaug

Theses and Dissertations

Modern multi-tasking computer systems run numerous applications simultaneously. These applications must share hardware resources including the Central Processing Unit (CPU) and memory while maximizing each application’s performance. Tasks executing in this shared environment leave residue which should not reveal information. This dissertation applies machine learning and statistical analysis to evaluate task residue as footprints which can be correlated to identify tasks. The concept of privilege strata, drawn from an analogy with physical geology, organizes the investigation into the User, Operating System, and Hardware privilege strata. In the User Stratum, an adversary perspective is taken to build an interrogator program that …

Enabling Rapid Chemical Analysis Of Plutonium Alloys Via Machine Learning-Enhanced Atomic Spectroscopy Techniques, Ashwin P. Rao

Theses and Dissertations

Analytical atomic spectroscopy methods have the potential to provide solutions for rapid, high fidelity chemical analysis of plutonium alloys. Implementing these methods with advanced analytical techniques can help reduce the chemical analysis time needed for plutonium pit production, directly enabling the 80 pit-per-year by 2030 manufacturing goal outlined in the 2018 Nuclear Posture Review. Two commercial, handheld elemental analyzers were validated for potential in situ analysis of Pu. A handheld XRF device was able to detect gallium in a Pu surrogate matrix with a detection limit of 0.002 wt% and a mean error of 8%. A handheld LIBS device was …

Multichannel Blind Deconvolution Of Circularly Polarized Imagery, Patrick B. Cunningham

Theses and Dissertations

Current methods can be used to recreate an expected Stokes polarization vector from measured light for characterization purposes. However, this only applies to three of the Stokes parameters, that is, the linear polarization components. Circular polarization is not currently being utilized for object characterization because the mathematical complexity is greater than for that of linear polarization. This research will analyze a way to expand existing algorithms to include circular polarization and enable the complete reconstruction of the Stokes vector from the measured light into a blind deconvolution algorithm for Stokes estimation and image reconstruction.

Quantum Error Detection Without Using Ancilla Qubits, Nicolas Guerrero

Theses and Dissertations

Quantum computers are beset by errors from a variety of sources. Although quantum error correction and detection codes have been developed since the 1990s, these codes require mid-circuit measurements in order to operate. In order to avoid these measurements we have developed a new error detection code that only requires state collapses at the end of the circuit, which we call no ancilla error detection (NAED). We investigate some of the mathematics behind NAED such as which codes can detect which errors. We then run NAED on three separate types of circuits: Greenberger–Horne–Zeilinger circuits, phase dependent circuits, and a quantum …

Additive Manufacturing Of Molybdenum For High Temperature Structural Applications, Megan L. Bustin

Theses and Dissertations

This research considered additive manufactured (AM) molybdenum (Mo) and the effect of three variables on microstructure, mechanical properties, and the relationship between the two. Test temperature, laser speed, and shield gas or build atmosphere were varied, and samples tested and analyzed using a three-point bending test, chemical composition, and optical and scanning electron microscopy. The relationship among variables and results using a Design of Experiments was limited compared to the inclusion of every tested sample. Most effects were expected: samples tested at room temperature were brittle without statistical significance; increasing laser speed resulted in decreased ductility and strain, smaller grain …

Mechanical Properties And Tension-Tension Fatigue Behavior Of A Novel Additively Manufactured Polymer Matrix Composite At Room And Elevated Temperature, Grayson M. Harber

Theses and Dissertations

The tension-tension fatigue behavior of a novel additively manufactured AM carbon fiber reinforced polymer matrix composite was studied. This novel material system consists of T1100 carbon fibers, and a UV photocured resin developed by Continuous Composites and Sartomer. Tensile properties and tension-tension fatigue were investigated for the 090 fiber orientation as well as for the ±45 fiber orientation. Specimens with 0/90 fiber orientation were tested at ambient laboratory temperature 23 °C and at elevated temperature 150 °C, while the specimens with the ±45 fiber orientation were tested only at ambient laboratory temperature. Tension-tension fatigue testing was carried out with a …

Leveraging Subject Matter Expertise To Optimize Machine Learning Techniques For Air And Space Applications, Philip Y. Cho

Theses and Dissertations

We develop new machine learning and statistical methods that are tailored for Air and Space applications through the incorporation of subject matter expertise. In particular, we focus on three separate research thrusts that each represents a different type of subject matter knowledge, modeling approach, and application. In our first thrust, we incorporate knowledge of natural phenomena to design a neural network algorithm for localizing point defects in transmission electron microscopy (TEM) images of crystalline materials. In our second research thrust, we use Bayesian feature selection and regression to analyze the relationship between fighter pilot attributes and flight mishap rates. We …

Orthogonal Arrays And Legendre Pairs, Kristopher N. Kilpatrick

Theses and Dissertations

Well-designed experiments greatly improve test and evaluation. Efficient experiments reduce the cost and time of running tests while improving the quality of the information obtained. Orthogonal Arrays (OAs) and Hadamard matrices are used as designed experiments to glean as much information as possible about a process with limited resources. However, constructing OAs and Hadamard matrices in general is a very difficult problem. Finding Legendre pairs (LPs) results in the construction of Hadamard matrices. This research studies the classification problem of OAs and the existence problem of LPs. In doing so, it makes two contributions to the discipline. First, it improves …

Orbit Determination With Event-Based Cameras To Improve Space Domain Awareness, Conor M. Wisentaner

Theses and Dissertations

The objective of this research is to assess the utility of a COTS EBC for SDA applications by evaluating its ability to produce data for orbit updates of resident space objects. Unlike traditional frame-based imaging sensors, the pixels on an EBC activate independently when a change in brightness is detected to produce a continuous data flow on a per pixel basis. This unique functionality provides much higher temporal resolution than traditional frame-based sensors, such that an EBC can generate far more data points from a single observation than a frame-based sensor. However, current COTS EBCs have less spatial resolution than …