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Articles 991 - 1020 of 13953
Full-Text Articles in Entire DC Network
Readiness Of Cybersecurity In The Usa Energy Industry, Aaron Cavanaugh
Readiness Of Cybersecurity In The Usa Energy Industry, Aaron Cavanaugh
Dissertations and Theses
Cybersecurity Readiness shows an organizations ability of applicant and application to be able to fully utilize computing resources through behaviors (e.g., training employees), practices, and processes, while managing risk through efficient controls in order to prevent, detect, and respond to outage scenarios using audit and assessment techniques. An evaluation of cybersecurity readiness for the USA energy industry assists industry decision makers to comprehensively assess readiness gaps for prioritizing a risk-based cybersecurity implementation plan. There is a currently a lack of a Multi-Criteria Decision Model (MCDM) to assist decision makers to comprehensively assess Readiness of Cybersecurity in the USA Energy Industry. …
Effects Of Spontaneous Curvature On Interfacial Adsorption And Collapse Of Phospholipid Monolayers, Bret A. Brandner, Shankar B. Rananavare, Stephen B. Hall
Effects Of Spontaneous Curvature On Interfacial Adsorption And Collapse Of Phospholipid Monolayers, Bret A. Brandner, Shankar B. Rananavare, Stephen B. Hall
Chemistry Faculty Publications and Presentations
To function effectively, pulmonary surfactant must adsorb rapidly to the alveolar air/water interface but avoid collapse from the surface when compressed to high interfacial densities. Prior studies show that phospholipids in the cylindrical monolayers of the inverse hexagonal (HII) phase adsorb quickly. The monolayers have negative curvature, defined by the concave shape of the hydrophilic face. Formation of the HII structures, however, involves significant disruption of chain-packing. Samples with significant spontaneous curvature, formed in the absence of applied force, may nonetheless have lamellar structures that optimize chain-packing. The experiments here tested whether planar lamellar bilayers formed by phospholipids with negative …
Exploring Determinants Of Transit Recovery After The Covid-19 Pandemic, Udit Khandelwal
Exploring Determinants Of Transit Recovery After The Covid-19 Pandemic, Udit Khandelwal
Dissertations and Theses
The COVID-19 pandemic significantly disrupted public transit systems across the US, resulting in substantial declines in ridership and revenue. At the same time, ridership has increased to different levels in cities. This thesis explores the determinants of transit recovery in American cities post-pandemic. It analyzes data from the National Transit Database (NTD) and employs a two-stage least squares (2SLS) regression model first laid out by Taylor et al. (2008) for data from 2000. Similar to the results of that paper, the thesis finds strong correlation between transit ridership and variables for transit supply and urban and demographic characteristics for 2019 …
Graph Regularized Sparse L2,1 Semi-Nonnegative Matrix Factorization For Data Reduction, Anthony Rhodes, Bin Jiang, Jenny Jiang
Graph Regularized Sparse L2,1 Semi-Nonnegative Matrix Factorization For Data Reduction, Anthony Rhodes, Bin Jiang, Jenny Jiang
Mathematics and Statistics Faculty Publications and Presentations
Non-negative Matrix Factorization (NMF) is an effective algorithm for multivariate data analysis, including applications to feature selection, pattern recognition, and computer vision. Its variant, Semi-Nonnegative Matrix Factorization (SNF), extends the ability of NMF to render parts-based data representations to include mixed-sign data. Graph Regularized SNF builds upon this paradigm by adding a graph regularization term to preserve the local geometrical structure of the data space. Despite their successes, SNF-related algorithms to date still suffer from instability caused by the Frobenius norm due to the effects of outliers and noise. In this paper, we present a new L2,1 SNF algorithm that …
Book Review Of, Calling Family: Digital Technologies And The Making Of Transnational Care Collectives, Michele Gamburd
Book Review Of, Calling Family: Digital Technologies And The Making Of Transnational Care Collectives, Michele Gamburd
Anthropology Faculty Publications and Presentations
Book Review: Calling Family: Digital Technologies and the Making of Transnational Care Collectives
Cross-Track Seabed Imaging And Buried Object Detection With A Multibeam Sonar, Charles W. Holland, Samuel Pinson, Daniel L. Orange, Cody R. Henderson
Cross-Track Seabed Imaging And Buried Object Detection With A Multibeam Sonar, Charles W. Holland, Samuel Pinson, Daniel L. Orange, Cody R. Henderson
Electrical and Computer Engineering Faculty Publications and Presentations
What lies underneath the ocean floor is of interest to a wide variety of disciplines. The focus here is imaging the upper tens of meters of material beneath the seafloor. The sub-bottom profiler is a valuable tool to that end, producing a 2-D image in depth below the seafloor and along the track of the ship. Geoscientists and engineers are frequently interested in not only the subseabed beneath the ship but also either side or cross-track of the ship. We show an approach to cross-track imaging using a low-frequency multibeam sub-bottom profiler. The main result is the detection of a …
Causal Effect Estimation In Survival Analysis With High Dimensional Confounders, Fei Jiang, Ge Zhao, Rosa Rodriguez-Monguio, Yanyuan Ma
Causal Effect Estimation In Survival Analysis With High Dimensional Confounders, Fei Jiang, Ge Zhao, Rosa Rodriguez-Monguio, Yanyuan Ma
Mathematics and Statistics Faculty Publications and Presentations
With the ever advancing of modern technologies, it has become increasingly common that the number of collected confounders exceeds the number of subjects in a data set. However, matching based methods for estimating causal treatment effect in their original forms are not capable of handling high-dimensional confounders, and their various modified versions lack statistical support and valid inference tools. In this article, we propose a new approach for estimating causal treatment effect, defined as the difference of the restricted mean survival time (RMST) under different treatments in high-dimensional setting for survival data. We combine the factor model and the sufficient …
The Carbon Crater: Comparing Anthropogenic Greenhouse Gas Emissions To Historical Planetary Events, Hal T. Nelson, Paul Reynolds, Brian W. Jewett
The Carbon Crater: Comparing Anthropogenic Greenhouse Gas Emissions To Historical Planetary Events, Hal T. Nelson, Paul Reynolds, Brian W. Jewett
Public Administration Faculty Publications and Presentations
Equilibrium climate sensitivity modeling relies heavily on paleoclimate records that were affected by meteorite impacts and volcanic explosions. This paper conducts a thought experiment by re-assembling known data and theories to shed new light on anthropogenic carbon waste. Anthropogenic activity, meteorite impacts and volcanic explosions all extract material from the Earth’s crust and deposit it in the atmosphere. This thought experiment tests if the mass of anthropogenic greenhouse gas emissions from 1851 to 2021 is comparable to the mass of atmospheric emissions from historical planetary events. Approximately 3.60 trillion tons of anthropogenic carbon dioxide equivalents are converted into volume and …
Re-Evaluating Hypertragulid Diversity In The John Day Basin, Oregon, Usa, Nicholas A. Famoso, Lana K. Jewell
Re-Evaluating Hypertragulid Diversity In The John Day Basin, Oregon, Usa, Nicholas A. Famoso, Lana K. Jewell
Geology Faculty Publications and Presentations
Despite their relative abundance, members of the family Hypertragulidae (Artiodactyla, Mammalia) have proved a conundrum regarding species diversity in the Turtle Cove Member (Oligocene) of the John Day Formation, located in central and eastern Oregon. Three species and two separate genera are described in the area, but previous research lacks statistical support for this level of variation. We use coefficients of variation (V) on measurements of dentition and astragali of hypertragulid specimens designated Hypertragulus hesperius, Hypertragulus minutus, and Nanotragulus planiceps as a metric for determining whether there were multiple species present in the population. Asymptotic and modified signed-likelihood ratio V …
Planting The Seed: Using Research As A Tool To Revitalize Puberty Ceremonies In Anishinaabe Communities, Miigis B. Gonzalez, Alexandra Ziibiins Johnson, Lisa Awan Martin, Jillian Naawakwe, Jillian Fish, Lalaine Sevillano, Melissa L. Walls, Lee Obizaan Staples
Planting The Seed: Using Research As A Tool To Revitalize Puberty Ceremonies In Anishinaabe Communities, Miigis B. Gonzalez, Alexandra Ziibiins Johnson, Lisa Awan Martin, Jillian Naawakwe, Jillian Fish, Lalaine Sevillano, Melissa L. Walls, Lee Obizaan Staples
School of Social Work Faculty Publications and Presentations
Purpose: The purpose of this work is to honor the wisdoms of Anishinaabe Elders, community and culture by interweaving these teachings with my own (first author) Anishinaabe experiences and a research project. Ceremonies are an important health practice for Anishinaabe people. This project aimed to gain a clearer conceptualization of the protective role of Anishinaabe puberty ceremonies on health in adolescence and across the lifespan. Design/methodology/approach Spiritual offerings guided this project at every stage including inviting Elders and community members into shared spaces of storytelling and teaching elicitation and grounding me as I carefully adopted the use of a western …
Oregon State Rank Assessment For Sheldon Tui Chub (Siphateles Bicolor Eurysoma), Eleanor P. Gaines
Oregon State Rank Assessment For Sheldon Tui Chub (Siphateles Bicolor Eurysoma), Eleanor P. Gaines
Institute for Natural Resources Publications
Oregon state conservation status assessment for Sheldon tui chub (Siphateles bicolor eurysoma) using NatureServe methodology, 2024.
Characterizing The Influence Of Metabolism On Steady State Water Exchange In Yeast As A Potential Mri Diagnostic Biomarker, Samantha Mumford
Characterizing The Influence Of Metabolism On Steady State Water Exchange In Yeast As A Potential Mri Diagnostic Biomarker, Samantha Mumford
Dissertations and Theses
Under conditions of ionic equilibrium with the environment a cell maintains a constant volume yet rapidly exchanges water molecules with the extracellular space. The rate constant for steady state water efflux, kio, can be measured using contrast enhanced magnetic resonance (CE-MR). The active water cycling (AWC) hypothesis is puts forward that kio is primarily influenced by cellular ATP levels and H+ ATPase activity at the cell membrane. Due to the correlation between kio and ATP levels, kio is thought to be a probable MRI biomarker for metabolic diseases such as cancer. Yet, the molecular …
Stability Analysis For Acoustic Waveguides. Part 3: Impedance Boundary Conditions, Leszek Demkowicz, Jay Gopalakrishnan, Norbert Heuer
Stability Analysis For Acoustic Waveguides. Part 3: Impedance Boundary Conditions, Leszek Demkowicz, Jay Gopalakrishnan, Norbert Heuer
Mathematics and Statistics Faculty Publications and Presentations
A model two-dimensional acoustic waveguide with lateral impedance boundary conditions (and outgoing boundary conditions at the waveguide outlet) is considered. The governing operator is proved to be bounded below with a stability constant inversely proportional to the length of the waveguide. The presence of impedance boundary conditions leads to a non self-adjoint operator which considerably complicates the analysis. The goal of this paper is to elucidate these complications and tools that are applicable, as simply as possible. This work is a continuation of prior waveguide studies (where self-adjoint operators arose) by J. M. Melenk et al. (2023), and L. Demkowicz …
Under Pressure: Employee Work Stress, Supervisory Mentoring Support, And Employee Career Success, Berrin Erdogan, Selin Kudret, Emily D. Campion, Talya N. Bauer, Julie Mccarthy, Bonnie Hayden Cheng
Under Pressure: Employee Work Stress, Supervisory Mentoring Support, And Employee Career Success, Berrin Erdogan, Selin Kudret, Emily D. Campion, Talya N. Bauer, Julie Mccarthy, Bonnie Hayden Cheng
Business Faculty Publications and Presentations
Despite consistent findings that stressed employees benefit from social support, these employees do not always have access to such support. We propose and test a conceptual model suggesting employee work stress will negatively affect supervisory career and psychosocial mentoring support. Drawing from social exchange theory, we predict this will indirectly affect employee career success (lower career satisfaction and promotability ratings, fewer promotions), and that the relationship between employee work stress and lower supervisory mentoring support can be explained by lower levels of work engagement experienced by, and attributed to, stressed employees. We tested our model across three studies. In Study …
Faculty Senate Monthly Packet October 2024, Portland State University Faculty Senate
Faculty Senate Monthly Packet October 2024, Portland State University Faculty Senate
Faculty Senate Monthly Packets
The October 7, 2024 monthly packet includes the October agenda, appendices, and the Faculty Senate minutes and attachments from the meeting held October 7, 2024.
Searching For Authentic Cultural Engagement In The Classroom, James H. Lyle Jr.
Searching For Authentic Cultural Engagement In The Classroom, James H. Lyle Jr.
Northwest Journal of Teacher Education
Many teachers in the current public education system in the United States do not fully consider the unique societal and cultural aspects of African American and Latinx learners. As a result, many teachers could benefit from developing skills that strengthen their understanding of authentic engagement, cultural competency, and cultural congruency to aid in implementing culturally relevant and sustaining pedagogical practices that benefit the diverse learning styles of these students. Additionally, some African American/Black teachers have adopted a standalone Eurocentric approach to teaching that could further alienate and disenfranchise students of Color. To address these issues, I describe and explain the …
Critical Conversations On Teaching And Learning Decolonial Narratives: A Duoethnography Of Firekeeper’S Daughter, Erica England, Shain Wright, Dion Crommarty
Critical Conversations On Teaching And Learning Decolonial Narratives: A Duoethnography Of Firekeeper’S Daughter, Erica England, Shain Wright, Dion Crommarty
Northwest Journal of Teacher Education
Exploring the role of diverse young adult (YA) literature in fostering social justice awareness, this paper focuses on the YA novel Firekeeper’s Daughter as a tool for understanding decolonization and our own individual privileges and responsibilities as they relate to colonization. Three researchers, each with differing positionalities and worldviews, employ a polyvocal methodology of duoethnography to examine the text's challenges to settler colonialism and its illumination of historical and systemic injustices. Through our dialogic exchange, we aim to contribute to a wider conversation about the potential of literature storytelling, and authentic, vulnerable conversations to inspire transformative change.
Education And Tolerance Of Homosexuality In Diverse Islamic Contexts, Camila Swift
Education And Tolerance Of Homosexuality In Diverse Islamic Contexts, Camila Swift
Dissertations and Theses
This study examines the relationship between educational attainment and moral tolerance of homosexuality among Muslims in Algeria, Malaysia, Pakistan, and Turkey. Utilizing human development theory to understand how educational attainment affects social values, the analysis draws on data from over 5,000 respondents from the Pew Research Center's "World's Muslims" dataset, which includes responses from a nationally representative sample of Muslims in these four countries. Logistic regression models and predicted probabilities are used to explore how educational attainment relates to moral tolerance of homosexuality, adjusting estimates for various alternate explanations through the use of control variables. The findings reveal that the …
Oregon State Rank Assessment For Goose Lake Tui Chub (Siphateles Bicolor Thalassinus), Jesse Laney
Oregon State Rank Assessment For Goose Lake Tui Chub (Siphateles Bicolor Thalassinus), Jesse Laney
Institute for Natural Resources Publications
Oregon state conservation status assessment for Goose Lake tui chub (Siphateles bicolor thalassinus) using NatureServe methodology, 2024.
Projected Loss Of Rock Glacier Habitat In The Contiguous Western United States With Warming, Abigail C. Lute, John T. Abatzoglou, Andrew G. Fountain, Timothy C. Bartholomaus
Projected Loss Of Rock Glacier Habitat In The Contiguous Western United States With Warming, Abigail C. Lute, John T. Abatzoglou, Andrew G. Fountain, Timothy C. Bartholomaus
Geology Faculty Publications and Presentations
Rock glaciers support alpine biodiversity and may respond more slowly to warming than snow or glaciers. While responses of snow and glaciers to climate change are relatively well understood, a robust assessment of rock glacier environmental niche, future distributions of rock glaciers and potential for development of rock glaciers from current glaciers is lacking. Using process-relevant, high-resolution environmental descriptors, we develop a species distribution model of the topographic, geologic and hydroclimatic niche of rock glaciers that provides novel estimates of potential rock glacier distributions for different climates. We identify mean annual air temperature and headwall area as the dominant controls …
Online Crime Reporting: A New Threat To Police Legitimacy?, Kris Henning, Kimberly Kahn, Kathryn Wuschke, Christian Peterson, Stephen Yakots
Online Crime Reporting: A New Threat To Police Legitimacy?, Kris Henning, Kimberly Kahn, Kathryn Wuschke, Christian Peterson, Stephen Yakots
Criminology and Criminal Justice Faculty Publications and Presentations
Police are more likely to be perceived as legitimate when officers are procedurally just during interactions with the public (i.e. impartial, transparent, fair and respectful). Efforts to reinforce these skills have largely focused on contacts initiated by officers. Less attention has been paid to interactions with crime victims. Moreover, in recent years many police departments have sought to increase efficiency by directing victims to report online, rather than communicating directly with an officer. Very little is known about how victims experience online reporting systems. This study surveyed 1,198 property crime victims who used a large US police department’s online reporting …
The Hydraulically Smooth Limit Of Flow Over Surfaces With Spanwise Heterogeneity, Haosen Xu, George Ilhwan Park, Xiang Yang, Xiaowei Zhu
The Hydraulically Smooth Limit Of Flow Over Surfaces With Spanwise Heterogeneity, Haosen Xu, George Ilhwan Park, Xiang Yang, Xiaowei Zhu
Mechanical and Materials Engineering Faculty Publications and Presentations
Wall slip is conventionally obtained through riblets or grooves. As riblets are macroscopic objects, it is usually not practical to discuss slip patterns at the hydraulically smooth limit. Per Nikuradse, the smooth limit is when the characteristic length of the surface pattern is comparable to the viscous length scale. Recent studies show the possibility of slip at the microscopic scale, making slip patterns at the hydraulically smooth limit relevant. In this study, we leverage a high-fidelity pseudo-spectral code and study flow over surfaces featuring alternating strips of slip and no-slip wall conditions. The wavelength of the surface pattern, denoted as …
On Localization Of Eigenfunctions Of The Magnetic Laplacian, Jeffrey S. Ovall, Hadrian Quan, Robyn Reid, Stefan Steinerberger
On Localization Of Eigenfunctions Of The Magnetic Laplacian, Jeffrey S. Ovall, Hadrian Quan, Robyn Reid, Stefan Steinerberger
Mathematics and Statistics Faculty Publications and Presentations
Let Ω ⊂ ℝd and consider the magnetic Laplace operator given by H(A) = (–i∇ – A(x))2, where A : Ω → ℝd, subject to Dirichlet boundary conditions. For certain vector fields A, this operator can have eigenfunctions, H(A)ψ = λψ, that are highly localized in a small region of Ω. The main goal of this paper is to show that if |ψ| assumes its maximum at x0 ∈ Ω, then A behaves 'almost' like a conservative vector field in a -neighborhood of x0 in a precise sense. In particular, we expect localization in regions where |curl A| is small. …
Tabular Data-Centric Ai: Challenges, Techniques And Future Perspectives, Yanjie Fu, Dongjie Wang, Hui Xiong, Kunpeng Liu
Tabular Data-Centric Ai: Challenges, Techniques And Future Perspectives, Yanjie Fu, Dongjie Wang, Hui Xiong, Kunpeng Liu
Computer Science Faculty Publications and Presentations
Tabular data are the most widely used data formats in almost every application domain, such as, biology, ecology, and material science. The purpose of tabular data-centric AI is to use AI to augment the predictive power of tabular data to get better AI. Tabular data-centric AI is essential because it can reconstruct distance measures, reshape discriminative patterns, and improve data AI readiness (structural, predictive, interaction, and expression levels), which is significant in industries and real-world deployments. Therefore, our tutorial is designed to capture the interest of professionals with expertise in artificial intelligence, machine learning, and data mining, as well as …
Stalemate At Port Arthur: William James On War, Vulnerability, And Pluralist Personalism, Bennett Gilbert
Stalemate At Port Arthur: William James On War, Vulnerability, And Pluralist Personalism, Bennett Gilbert
History Faculty Publications and Presentations
Using a close reading of a single clause and its context in a section in A Pluralist Universe, we see the moral dangers James saw in traditional ontology, in particular its relation to war and peace. This analysis opens up James’s combining the personalist philosophy of his friend Borden Bowne (and others) with the pluralism he developed late in his career. This leads, further, to reflection of James’s performative philosophizing. Finding in James a theory of “pluralistic personalism” gives us a fresh look at the far-reaching power of his basic concepts of moral philosophy.
Pathos, Fall 2024, Portland State University. Student Publications Board
Pathos, Fall 2024, Portland State University. Student Publications Board
Pathos
Editor: Adriana Stanzione
A Magical Symbiosis: The Advent Of Witchcraft In The Age Of Social Technology, James Dryden
A Magical Symbiosis: The Advent Of Witchcraft In The Age Of Social Technology, James Dryden
University Honors Theses
This paper investigates the relationship between social media and witchcraft practitioners in online communities. After providing a landscape of how other researchers have studied similar phenomenon, interviews with anonymous witches who utilize online platforms such as TikTok and Instagram were conducted by the author. Using these testimonies in conjunction with the research of others, the author identifies trends and similar stories between American witches regarding Wicca, the commodification of the craft, and how witchcraft practice continues in the modern day.
Holistic Methodologies For Fusing The Material And The Ideological: Tracing The Sociotechnical Imaginaries That Enable The World’S Fastest Supercomputer, Sarah Read, Jordan Firth
Holistic Methodologies For Fusing The Material And The Ideological: Tracing The Sociotechnical Imaginaries That Enable The World’S Fastest Supercomputer, Sarah Read, Jordan Firth
English Faculty Publications and Presentations
When the Aurora supercomputer launches at Argonne National Laboratory it will operate at the exascale and be one of the fastest supercomputers in the world. We have been invited by Argonne to do field work to understand both the day-to-day processes that maintain supercomputing (e.g. user documentation, government reporting, user testing) and the sociotechnical national imaginaries [11], –in particular the increasingly tense global competition between the US and China in the supercomputing race–that shaped the development of Aurora. This article proposes our work-in-progress methodological approach that accounts for both higher-level imaginaries and the everyday practices of supercomputing. We also describe …
Bht-Qaoa: The Generalization Of Quantum Approximate Optimization Algorithm To Solve Arbitrary Boolean Problems As Hamiltonians, Ali Al-Bayaty, Marek Perkowski
Bht-Qaoa: The Generalization Of Quantum Approximate Optimization Algorithm To Solve Arbitrary Boolean Problems As Hamiltonians, Ali Al-Bayaty, Marek Perkowski
Electrical and Computer Engineering Faculty Publications and Presentations
A new methodology is introduced to solve classical Boolean problems as Hamiltonians, using the quantum approximate optimization algorithm (QAOA). This methodology is termed the “Boolean-Hamiltonians Transform for QAOA” (BHT-QAOA). Because a great deal of research and studies are mainly focused on solving combinatorial optimization problems using QAOA, the BHTQAOA adds an additional capability to QAOA to find all optimized approximated solutions for Boolean problems, by transforming such problems from Boolean oracles (in different structures) into Phase oracles, and then into the Hamiltonians of QAOA. From such a transformation, we noticed that the total utilized numbers of qubits and quantum gates …
Exploring The Radical Potential Of Queer Azn And Pasifika Crt For Clinical Social Work Praxis, Antonia R. G. Alvarez, Gita R. Mehrotra, Sameena Azhar, Anne S. J. Farina, Alma M. Ouanesisouk Trinidad
Exploring The Radical Potential Of Queer Azn And Pasifika Crt For Clinical Social Work Praxis, Antonia R. G. Alvarez, Gita R. Mehrotra, Sameena Azhar, Anne S. J. Farina, Alma M. Ouanesisouk Trinidad
School of Social Work Faculty Publications and Presentations
In the wake of the COVID-19 pandemic, the crisis in Palestine, and the continued rise in hate crimes against Asian American and Pacific Islander (AAPI) communities, clinical social work praxis centering on the intersectional identities of queer and transgender AAPI communities has never been more vital. Through the visioning of an approach that addresses these intersecting identities and our own experiences with racism, cisheterosexism, and transphobia, we propose a theoretical framework, Queer AZN and Pasifika Critical Race Theory (CRT), for clinical social work praxis. Specifically, we describe six tenets of a Queer AZN and Pasifika CRT approach, which include (1) …