Digital Commons Network^™

Alignment Of Theoretically Grounded Constructs For The Measurement Of Science And Chemistry Identity, Kathryn Nicole Hosbein, Jack Barbera

Chemistry Faculty Publications and Presentations

Identity has been theorized to aid in student persistence within STEM disciplines. In this study, science and chemistry identity were defined as being recognized as a science or chemistry person within the classroom. To generalize the effects that identity has on student persistence, a measurable construct must be defined, operationalized, and tested in multiple settings with different populations. This project addressed the first step in the process, defining the construct and grounding it in an established theoretical framework. This qualitative project utilized a previously described physics identity framework, with sub-constructs of performance/competence, recognition, and interest, as a starting point for …

Faculty Senate Monthly Packet November 2019, Portland State University Faculty Senate

Faculty Senate Monthly Packets

The November 4, 2019 Monthly packet includes the November agenda and appendices and the Faculty Senate minutes and attachments from the meeting held October 7, 2019. Also included are the corrected October minutes and the Academic Affairs Budget Model.

Data From: Updating And Expanding Lrt/Brt/Sct/Crt Data And Analysis, Robert Hibberd, Arthur C. Nelson, Kristina M. Currans

TREC Datasets and Databases

This data supports the LRT/BRT/SCT/CRT Development Outcomes FINAL PHASE.

The FINAL PHASE will allow us to use factor/cluster analysis to create typologies of station areas to assess the extent to which types of stations (as opposed to transit systems as a whole) make a difference in economic development (based on LEHD data), and people (census data) during the periods before, during and after the Great Recession as appropriate for each system and mode. It will also allow us to refine hedonic regression analysis.

Strengthening Your Community By Tackling Challenges Together: Lessons From The High Desert Partnership, Jennifer H. Allen, Connie P. Ozawa, Julia Babcock

National Policy Consensus Center Publications and Reports

The people of Harney County, Oregon, have a story to tell about healing decades of conflict and coming together to ensure their community survives and thrives. Harney County, located in the southeast corner of the state, is the largest and one of the least populated of Oregon’s counties. It is a place of wide open spaces, with sagebrush deserts, rich wetlands, expansive alkali flats, stark mountains, and stately ponderosa pine forests. The economy relies heavily on the land for farming, ranching, and forestry. Yet the majority of Harney’s land is publicly owned. Historically, that was a recipe for heated disagreements …

Plea Decision-Making: The Influence Of Attorney Expertise, Trustworthiness, And Recommendation, Kelsey S. Henderson, Reveka Shteynberg

Criminology and Criminal Justice Faculty Publications and Presentations

Attorney recommendations influence defendant plea decisions; and the degree of influence likely rests on the perceived trustworthiness and level of expertise of the attorney (factors of source credibility). We explored attorney source credibility factors and how these characteristics influence defendants’ plea decision-making. MTurk participants read a hypothetical plea scenario and were asked to imagine themselves as the defendant in a DWI/DUI case making a plea decision; in the scenario, we manipulated the defense attorney’s level of trustworthiness, expertise, and plea recommendation. There was a significant interaction between attorney recommendation and trustworthiness on defendants’ plea decisions; participants who were advised to …

B-Line Sustainable Urban Delivery: Can Last-Mile Bicycle Delivery Survive The E-Commerce Minefield?, Madeleine Pullman, Jacen Greene, Wanying Shi, Stephan Kaplan

Business Faculty Publications and Presentations

As the population of cities in the western United States continues to boom, the demand for retail and wholesale food has followed suit. To deal with the accompanying increase in traffic and congestion from population and business growth, the city of Portland planned to increase bikeways and reduce the use of single-occupant vehicles to less than 30% of total commuters by 2026. Despite efforts to decrease dependence on vehicles, traffic congestion in Portland
continued to increase, and traditional vehicle delivery in the urban area became less and less efficient. As ride-sharing services and online retailers increased their presence in the …

Cul3 Regulates Cyclin E1 Protein Abundance Via A Degron Located Within The N-Terminal Region Of Cyclin E, Brittney Marie Davidge, Katia De Oliveira Rebola, Larry N. Agbor, Curt D. Sigmund, Jeffrey D. Singer

Biology Faculty Publications and Presentations

mammalian cells. Increased levels of cyclin E are found in some cancers. Additionally, proteolytic removal of the cyclin E N-terminus occurs in some cancers and is associated with increased cyclin E–Cdk2 activity and poor clinical prognosis. Cyclin E levels are tightly regulated and controlled in part through ubiquitin-mediated degradation initiated by one of two E3 ligases, Cul1 and Cul3. Cul1 ubiquitylates phosphorylated cyclin E, but the mechanism through which Cul3 ubiquitylates cyclin E is poorly understood. In experiments to ascertain how Cul3 mediates cyclin E destruction, we identified a degron on cyclin E that Cul3 targets for ubiquitylation. Recognition of …

Economic And Development Benefits Of Fixed Route Transit Through Denser Housing: A National Assessment, Arthur C. Nelson, Robert Hibberd

TREC Project Briefs

Building upon seven years of research, NITC investigators used economic analysis to determine development outcomes and land use planning implications of different fixed route transit systems (FRT). They have created, analyzed, and shared a nationwide data repository that explores links between transit station proximity and real estate rents, jobs, people, and housing. Earlier research revealed important differences in development outcomes of FRT’s during the 2000’s, but the significantly expanded data repository offers a more representative look at development outcomes after the Great Recession and with 22 new FRT systems added.

The main takeaway from this expanded analysis? Only 5% of …

Microplastic Occurrence And Effects In Commercially Harvested North American Finfish And Shellfish: Current Knowledge And Future Directions, Britta Baechler, Cheyenne Stienbarger, Dorothy Horn, Jincy Joseph, Allison Taylor, Elise F. Granek, Susanne Brander

Environmental Science and Management Faculty Publications and Presentations

Commercial fisheries yield essential foods, sustain cultural practices, and provide widespread employment around the globe. Commercially harvested species face a myriad of anthropogenic threats including degraded habitats, changing climate, overharvest, and pollution. Microplastics are pollutants of increasing concern, which are pervasive in the environment and can harbor or adsorb pollutants from surrounding waters. Aquatic organisms, including commercial species, encounter and ingest microplastics, but there is a paucity of data about those caught and cultured in North America. Additional research is needed to determine prevalence, physiological effects, and population-level implications of microplastics in commercial species from Canada, the United States, and …

"I Wouldn't Know Where To Start": Perspectives From Clinicians, Agency Leaders, And Autistic Adults On Improving Community Mental Health Services For Autistic Adults, Brenna B. Maddox, Samantha Crabbe, Rinad S. Beidas, Lauren Brookman-Frazee, Carolyn Cannuscio, Judith Miller, Christina Nicolaidis, David Mandell

School of Social Work Faculty Publications and Presentations

Most autistic adults struggle with mental health problems, and traditional mental health services generally do not meet their needs. This study used qualitative methods to identify ways to improve community mental health services for autistic adults for treatment of their co-occurring psychiatric conditions. We conducted semistructured, open-ended interviews with 22 autistic adults with mental healthcare experience, 44 community mental health clinicians, and 11 community mental health agency leaders in the United States. The participants identified clinician-, client-, and systems-level barriers and facilitators to providing quality mental healthcare to autistic adults. Across all three stakeholder groups, most of the reported barriers …

Species-Specific Effects Of Passive Warming In An Antarctic Moss System, Hannah M. Prather, Angélica Casanova-Katny, Andrew F. Clements, Matthew Chmielewski, Mehmet Ali Balkan, Erin Shortlidge, Todd Rosenstiel, Sarah Eppley

Biology Faculty Publications and Presentations

Polar systems are experiencing rapid climate change and the high sensitivity of these Arctic and Antarctic ecosystems make them especially vulnerable to accelerated ecological transformation. In Antarctica, warming results in a mosaic of ice-free terrestrial habitats dominated by a diverse assemblage of cryptogamic plants (i.e. mosses and lichens). Although these plants provide key habitat for a wide array of microorganisms and invertebrates, we have little understanding of the interaction between trophic levels in this terrestrial ecosystem and whether there are functional effects of plant species on higher trophic levels that may alter with warming. Here, we used open top chambers …

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

TREC Final Reports

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

Widespread Severe Wildfires Under Climate Change Lead To Increased Forest Homogeneity In Dry Mixed-Conifer Forests, Brooke Alyce Cassell, Robert M. Scheller, Melissa S. Lucash, Matthew Hurteau, E. Louise Loudermilk

Environmental Science and Management Faculty Publications and Presentations

Climate warming in the western United States is causing changes to the wildfire regime in mixed-conifer forests. Rising temperatures, longer fire seasons, increased drought, as well as fire suppression and changes in land use, have led to greater and more severe wildfire activity, all contributing to altered forest composition over the past century. To understand future interactions among climate, wildfire, and vegetation in a fire-prone landscape in the southern Blue Mountains of central Oregon, we used a spatially explicit forest landscape model, LANDIS-II, to simulate forest and fire dynamics under current management practices and two projected climate scenarios. The results …

Contamination Of Coupling Glass And Performance Evaluation Of Protective System In Vacuum Laser Beam Welding, Yongki Lee, Jason Cheon, Byung-Kwon Min, Cheolhee Kim

Mechanical and Materials Engineering Faculty Publications and Presentations

Vacuum laser beam welding enables deeper penetration depth and welding stability than atmospheric pressure laser welding. However, contaminated coupling glass caused by welding fumes in the vacuum space reduces laser transmittance, leading to inconsistent penetration depth. Therefore, a well-designed protective system is indispensable. Before designing the protective system, the contamination phenomenon was quantified and represented by a contamination index, based on the coupling glass transmittance. The contamination index and penetration depth behavior were determined to be inversely proportional. A cylindrical protective system with a shielding gas supply was proposed and tested. The shielding gas jet provides pressure-driven contaminant suppression and …

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

Urban Studies and Planning Faculty Publications and Presentations

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

Investigating The Accuracy Of One-Dimensional Volcanic Plume Models Using Laboratory Experiments And Field Data, James S. Mcneal, Graham Freedland, L. G. Mastin, Raúl Bayoán Cal, S. A. Solovitz

Mechanical and Materials Engineering Faculty Publications and Presentations

During volcanic eruptions, model predictions of plume height are limited by the accuracy of entrainment coefficients used in many plume models. Typically, two parameters are used, 𝛼 and 𝛽, which relate the entrained air speed to the jet speed in the axial and cross-flow directions, respectively. To improve estimates of these parameters, wind tunnel experiments have been conducted for a range of cross-wind velocities and turbulence conditions. Measurements are compared directly to computations from the 1-D plume model, Plumeria, in the near-field, bending region of the jet. Entrainment coefficients are determined through regression analysis, demonstrating optimal combinations of effective 𝛼 …

Reclaiming A Unified American Narrative Lexical, Grammatical, And Story Metaphors In A Discussion Of Polarized Identities, L. David Ritchie

Communication Faculty Publications and Presentations

As part of an on-going project to apply metaphor analysis to understanding the cultural polarization that has recently obstructed discourse about political and cultural issues in both the United States and Europe, this essay examines the lexical, grammatical, and story metaphors in a recent editorial column, by conservative columnist Ross Douthat, that also focuses on this topic. In a key section of the essay, Douthat uses a blend of complex grammatical and lexical metaphors to highlight the contrast between the traditional American identity narrative of settlement and conquest and a recently emerged liberal counter-narrative, which Douthat epitomizes by quoting former …

Learn Model Of Career Trajectories: Application To The Stem Postdoctoral Scholar, Audrey J. Jaeger, Karen J. Haley, Tara D. Hudson

Educational Leadership and Policy Faculty Publications and Presentations

Postdoctoral scholars constitute a sizeable population within the academic workforce. Given the intended role of a postdoc position as a time of advanced training and professional development for a future academic career, particularly in science, technology, engineering, and math (STEM) fields, it is important to understand whether and how well the career-related needs of postdocs are being met. The purpose of this research was to understand STEM postdoctoral scholars’ career trajectories, with particular attention to the influences on their career-related decision making, by applying the Life Experiences and Role Negotiations (LEARN) model to qualitative data from interviews with 19 STEM …

On The Equality Case Of The Ramanujan Conjecture For Hilbert Modular Forms, Liubomir Chiriac

Mathematics and Statistics Faculty Publications and Presentations

The generalized Ramanujan Conjecture for cuspidal unitary automorphic representations π on GL(2) asserts that |av(π)| ≤ 2. We prove that this inequality is strict if π is generated by a CM Hilbert modular form of parallel weight two and v is a finite place of degree one. Equivalently, the Satake parameters of πv are necessarily distinct. We also give examples where the equality case does occur for primes of degree two.

An Uncultivated Virus Infecting A Symbiotic Nanoarchaeota In The Hot Springs Of Yellowstone National Park, Jacob H. Munson-Mcgee, Colleen Rooney, Mark J. Young

Computer Science Faculty Publications and Presentations

The Nanoarchaeota are small cells with reduced genomes that are found attached to and dependent on a second archaeal cell for their growth and replication. Initially found in marine hydrothermal environments and subsequently in terrestrial geothermal hot springs, the Nanoarchaeota species that have been described are obligate ectobionts, each with a different host species. However, no viruses have been described that infect the Nanoarchaeota. Here we identify a virus infecting Nanoarchaeota using a combination of viral metagenomic and bioinformatic approaches. This virus, tentatively named Nanoarchaeota Virus 1 (NAV1), consists of a 35.6kb circular DNA genome encoding for 52 proteins. We …

Contraceptive Use Following Unintended Pregnancy Among Ugandan Women Living With Hiv, Jana Jarolimova, Jerome Kabakyenga, Kara Bennett, Winnie R. Muyindike, Annet Kembabazi, Jeffrey N. Martin, Peter W. Hunt, Yap Boum, Jessica E. Haberer, David Bangsberg, Angela Kaida, Lynn T. Matthews

OHSU-PSU School of Public Health Faculty Publications and Presentations

Background: Preventing unintended pregnancy is critical for women living with HIV (WLWH) to safely achieve their reproductive goals. Family planning services should support WLWH at risk of repeat unintended pregnancies. We examined the relationship between unintended pregnancy and subsequent contraception use among WLWH in Uganda.

Study design: This was a retrospective analysis of data from a longitudinal cohort of individuals initiating antiretroviral therapy (ART), restricted to women with pregnancy (confirmed via urine β-hcg testing) between 2011–2013. The exposure of interest was intended vs unintended pregnancy, and the outcome was self-report of modern contraceptive use (hormonal methods, intrauterine device, sterilization, and/or …

Communicating Capacity And Expectations Using A Call For Proposals, Karen Bjork

Library Faculty Publications and Presentations

Starting an open textbook publishing initiative? This presentation focuses on communicating capacity and expectations through the Call for Proposals (CFP).

Nineteenth-Century Tides In The Gulf Of Maine And Implications For Secular Trends, Richard D. Ray, Stefan A. Talke

Civil and Environmental Engineering Faculty Publications and Presentations

Since the early twentieth century, the amplitudes of tidal constituents in the Gulf of Maine and Bay of Fundy display clear secular trends that are among the largest anywhere observed for a regional body of water. The M2 amplitude at Eastport, Maine, increased at a rate of 14.1 ± 1.2 cm per century until it temporarily dropped during 1980–1990, apparently in response to changes in the wider North Atlantic. Annual tidal analyses indicate M2 reached an all‐time high amplitude last year (2018). Here we report new estimates of tides derived from nineteenth century water‐level measurements found in the U.S. National …

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

OHSU-PSU School of Public Health Faculty Publications and Presentations

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

Faculty Senate Monthly Packet October 2019, Portland State University Faculty Senate

Faculty Senate Monthly Packets

The October 2019 Monthly packet includes the October agenda and appendices and the Faculty Senate minutes and attachments from the meeting held June 3, 2019.

Three Paths To Scholarly Articles, Kimberly Willson-St. Clair

Library Faculty Publications and Presentations

Participants will gain a better understanding of how to introduce students to scholarly, peer-reviewed articles. Participants will actively engage in searching in order to face some of the pitfalls and highlights of the research experience.

Mixed Signals: The Unintended Effects Of Diversity Initiatives, Tessa L. Dover, Cheryl R. Kaiser, Brenda Major

Psychology Faculty Publications and Presentations

Organizational diversity initiatives—programs and policies intended to increase the fairness of organizations and promote the inclusion, hiring, retention, and promotion of underrepresented groups—are ubiquitous. Despite the widespread implementation of diversity initiatives, several empirical investigations point to challenges associated with these initiatives. We suggest that one of the challenges hindering the effectiveness of diversity management involves the unintended signals that these initiatives send. Specifically, we review social psychological evidence that the mere presence of diversity initiatives can have unintended consequences through the communication of (1) fairness signals, (2) inclusion signals, and (3) competence signals. The presence of organizational diversity initiatives may …

Moving Peer Review Transparency From Process To Praxis, Emily Ford

Library Faculty Publications and Presentations

Scholarly publications often work to provide transparency of peer-review processes, posting policy information to their websites as suggested by the Committee on Publication Ethics’ (COPE) Principles of Transparency and Best Practice in Publishing. Yet this falls short in providing peer-review transparency. Using examples from an interview-based qualitative study, this article argues that scholarly publications should move from peer-review process transparency to a praxis of transparency in peer review. Praxis infers that values inform practices. Scholarly publications should therefore use clear communication practices in all matters of business, and bolster transparency efforts, delineating rights and responsibilities of all players in …

Remote Characterization Of Dominant Wavelengths From Surface Folding On Lava Flows Using Lidar And Discrete Fourier Transform Analyses, Nicholas Deardorff, Adam M. Booth, Katharine Cashman

Geology Faculty Publications and Presentations

Surface folding is common in lava flows of all compositions and is believed to be due to changes in viscosity and flow velocity between the cooling crust and the more fluid flow interior. However, our understanding of the relationship between surface folding and flow rheology is incomplete. In this study we analyze digital terrain models of eight lava flows ranging in composition from basaltic andesite to rhyolite using a discrete Fourier transform analysis to quantitatively determine dominant surface fold wavelengths. Our discrete Fourier transform analyses show that each lava flow has multiple fold generations and that dominant wavelengths are more …

A Profile Of Sophomore Inquiry Students Fall 2019, Portland State University. University Studies Program

University Studies Assessment Research

No abstract provided.