Digital Commons Network^™

Patterns Of Substance Use Before And After Hospitalization Among Patients Seen By An Inpatient Addiction Consult Service: A Latent Transition Analysis, Caroline King, Christina Nicolaidis, P. Todd Korthuis, Kelsey C. Priest, Honora Englander

School of Social Work Faculty Publications and Presentations

Background and aims: Polysubstance use is common and contributes to morbidity and mortality of hospitalized patients, and yet little is known about patterns of substance use among hospitalized patients, or how an addiction consult service (ACS) might impact polysubstance use after discharge. The objective of this study was to identify patterns of substance use at admission and after discharge among hospitalized patients with substance use disorders who saw an ACS.

Design: Prospective cohort study. We used latent transition analysis of substance use scores at the time of hospital admission and 30 to 90 days posthospitalization.

Setting: Single, …

An Expert Discussion On Structural Racism In Autism Research And Practice, Desiree R. Jones, Christina Nicolaidis, Lisa J. Ellwood, Arianne Garcia, Khalilah R. Johnson, Kristina Lopez, T. C. Waisman

School of Social Work Faculty Publications and Presentations

Autism research has a race problem. Despite improvements in screening and diagnosis, autism continues to be underdiagnosed in Black and Hispanic children , and those who obtain a diagnosis often have limited access to support services. Racial disparities persist during the transition to adulthood, with autistic adults from racial and ethnic minority groups experiencing a number of challenges, including lower rates of employment, social participation, and postsecondary education compared to White autistic adults. While these studies highlight the important intersection between race, ethnicity and autism, people of color remain consistently under-represented in autism research , and dialogues regarding the impact …

It’S About Time: Staff Support Contacts And Mentor Volunteer Experiences, Thomas E. Keller, Alison Drew, Hyuny Clark-Shim, Renee Spencer, Carla Herrera

School of Social Work Faculty Publications and Presentations

Formal youth mentoring programs typically rely on volunteers to serve as mentors to young people, with training and guidance from agency staff. A fundamental program practice is to provide ongoing support and supervision to volunteer mentors by engaging in regular contact to monitor the progress of the mentoring relationship and offer guidance and encouragement. Using data from mentors (n = 504) in multiple mentoring programs (n = 55), the current study investigated how the amount of time devoted to these match support contacts was associated with mentor perceptions regarding the nature of their volunteer experience, specifically: the quality of supervision …

Assessing Refugees' Multidimensional Poverty In The United States, Mitra Naseh, Miriam Potocky, Shanna L. L. Burke, Paul H. Stuart, Fatma Huffman

School of Social Work Faculty Publications and Presentations

Background: This study is among the first to calculate refugee poverty using the capability approach in the United States. The concept is novel as it avoids limitations of the monetary approach to poverty and provides a more comprehensive perspective on multiple deprivations that refugees might experience within their first five years of arrival to the United States. As the majority of refugees flee war or conflict-affected areas, they frequently escape with limited assets (Jacobsen, 2005; Potocky & Naseh, 2019). Often they spend their last resources on paying the smugglers to reach safety (Jacobsen, 2005) and arrive to host countries with …

Easa Connections: Community-Based Participatory Research To Develop A Peer-Based Early Psychosis Web Resource With Young Adults, Dora Raymaker, Tamara G. Sale, Mariam Rija, Nicholas Buekea, Nybelle Caruso, Ryan P. Melton, Natalie Cohrs, Veronica Gould, Christina Wall, Mirah L. Scharer

School of Social Work Faculty Publications and Presentations

Young adults (YA) who have experienced early psychosis (EP) have valuable information about their recovery process yet are often left out of research. We used a community-based participatory research (CBPR) approach in partnership with the Early Assessment and Support Alliance (EASA) EP program and Portland State University to develop a peer-driven, web-based, recovery resource.We used our CBPR process to collaboratively develop the resource and conducted an iterative usability study to test and refine it. The resource was well-received and accessible. YA partners emphasize the importance of being prepared to learn about research and one’s self, being open to new experiences, …

Challenging Aggressive Behaviors Experienced By Personal Support Workers In Comparison To Home Care Workers: Relationships Between Caregiver Experiences And Psychological Health, Kelsey N. Womack, Teala W. Alvord, Caitlyn F. Trullinger-Dwyer, Sean P.M. Rice, Ryan Olson

OHSU-PSU School of Public Health Faculty Publications and Presentations

Personal support workers (PSW) are caregivers for children and adults with intellectual and developmental disabilities (IDDs) or adults experiencing mental illness or other behavioral health conditions. The work can be very meaningful, but many PSWs must prepare for, monitor, and manage challenging behaviors, including aggression. This study was designed to estimate the prevalence of aggression experienced by PSWs in Oregon, and compare it to a previous sample of Oregon home care workers (HCWs). This comparison included an analysis of relationships between exposures to aggression and psychological health factors. PSWs in Oregon (N = 240) were surveyed electronically at a single …

Strong Men, Strong Communities: Design Of A Randomized Controlled Trial Of A Diabetes Prevention Intervention For American Indian And Alaska Native Men, Ka‘Imi Sinclair, Cara Carty, Kelly L. Gonzales, Cassandra Nikolaus, Lucas Gillespie, Dedra Buchwald

OHSU-PSU School of Public Health Faculty Publications and Presentations

Type 2 diabetes is a serious global epidemic that disproportionately affects disadvantaged populations. American Indians and Alaska Natives (AIs/ANs) have the highest rates of diabetes in the nation with a prevalence of 14.7% in 2018, more than twice that of non-Hispanic Whites. AI/AN men have the highest prevalence of diagnosed type 2 diabetes (14.5%) compared to non-Hispanic Black (11.4%), non-Hispanic Asian (10.0%), and non-Hispanic White (8.6%) men. Several landmark clinical trials have shown that lifestyle interventions can effectively prevent or delay the onset of diabetes among those at risk, including in AIs/ANs. Despite positive outcomes for AIs/ANs in these studies, …

Severability As Deregulation: The Construction Of A New Doctrine Through Affordable Care Act Litigation, George Horvath

Faculty Scholarship

Scholars have sharply criticized the plaintiffs' severability argument in the ongoing challenge to the Affordable Care Act (ACA), California v. Texas, as a flawed application of contemporary severability doctrine that would disrupt broad swaths of the U.S. healthcare system. This Article argues that the severability argument put forward by the Texas plaintiffs, as well as the District Court's severability analysis in that case, the Department of Justice's severability argument on appeal, and the severability argument made by the so-called "Joint Dissent" in National Federation of Business v. Sebelius together represent an emerging doctrinal alternative to the traditional, Alaska Airlines severability …

Off-Label Drug Risks: Toward A New Fda Regulatory Approach, George Horvath

Faculty Scholarship

No abstract provided.

Sentenced To Surveillance: Fourth Amendment Limits On Electronic Monitoring, Kate Weisburd

Faculty Scholarship

As courts and legislatures increasingly recognize that “digital is different” and attempt to limit government surveillance of private data, one group is conspicuously excluded from this new privacy-protective discourse: the five million people in the United States on probation, parole, or other forms of community supervision. This Article is the first to explore how warrantless electronic surveillance is dramatically transforming community supervision and, as a result, amplifying a growing privacy-protection disparity: those in the criminal legal system are increasingly losing privacy protections even while those not in the system are increasingly gaining privacy protections. The quickly expanding use of GPS-equipped …

Enhancing Final Image Contrast In Off-Axis Digital Holography Using Residual Fringes, Manuel Bedrossian, Kent Wallace, Eugene Serabyn, Chris Lindensmith, Jay Nadeau

Physics Faculty Publications and Presentations

We show that background fringe-pattern subtraction is a useful technique for removing static noise from off-axis holographic reconstructions and can enhance image contrast in volumetric reconstructions by an order of magnitude in the case for instruments with relatively stable fringes. We demonstrate the fundamental principle of this technique and introduce some practical considerations that must be made when implementing this scheme, such as quantifying fringe stability. This work also shows an experimental verification of the background fringe subtraction scheme using various biological samples.

Characterization Of Retinol Stabilized In Phosphatidylcholine Vesicles With And Without Antioxidants, Yekaterina G. Chmykh, Jay Nadeau

Physics Faculty Publications and Presentations

Retinol stability has been reported to be improved by encapsulation in liposomes, both with and without cholesterol. However, this improvement is limited because of lipid peroxidation. In this study, we compare the stability of retinol in phosphatidylcholine liposomes under ultraviolet (UV) light or standard room air, with and without the addition of antioxidants. Both butylated hydroxytoluene (BHT) and a proprietary mix (StoppOx) improved the shelf stability from vesicles, including within the aqueous layer. Fluorescence lifetimes were equally heterogeneous. Under UV irradiation, StoppOx protected retinol for significantly longer than BHT and via different mechanisms. This suggests that natural antioxidants work well …

The Characteristics Of Japanese Manga, Jon Holt, Teppei Fukuda

World Languages and Literatures Faculty Publications and Presentations

In the field of manga studies, Natsume Fusanosuke is widely known as an important critic and scholar. Not only does he maintain a brutally prolific publication record, but one must keep in mind he was of a new wave of manga commentators, critics, and scholars that made their impact on Japanese culture by bringing public acceptance to manga in the 1990s. Many scholars in comics studies are aware of Manga no yomikata (How to Read Manga [Takarajima, 1995]), a co-authored book that consists of a considerable contribution by Natsume, and of its importance in establishing certain types of approaches to …

Do Farmers Manage Weeds On Owned And Rented Land Differently? Evidence From U.S. Corn And Soybean Farms, George Frisvold, Joshua Albright, David Ervin, Micheal Owen, Jason Norsworthy, Katherine E. Dentzman, Terrance M. Hurley, Raymond A. Jussaume, Jeffrey Gunsolus, Wesley Everman

Economics Faculty Publications and Presentations

BACKGROUND

It has been frequently argued that growers have less incentive to manage the evolution and spread of herbicide‐resistant weeds on leased than on owned land. This is because resistance management provides long‐term rather than short‐term benefits that operators may be less assured of capturing on land they do not own. Yet, empirical evidence supporting this argument has been lacking.

RESULTS

This study reports on results from a large‐scale national survey of weed management and other crop production practices on US agricultural fields. Up to 11 weed management practices were compared across owner‐operated versus renter‐operated fields. Analysis of survey data …

Wage Differences Matter: An Experiment Of Social Comparison And Effort Provision When Wages Increase Or Decrease, Jose A. Rojas-Fallas, J. Forrest Williams

Economics Faculty Publications and Presentations

Wage rates, efficiency wages, and gift exchange in a labor market are all crucial aspects in regard to designing contracts to ensure high effort from workers. We extend this literature by discussing the relationship between known differences in wages (social comparison) and workers’ effort provision. We conduct an experiment in which subjects perform effort tasks for piece-rates. All subjects are paid the same wage rate in the first half of the experiment, but in the second half are paid different wage rates; the primary variable we study is the information about others’ wage rates given to a subset of subjects. …

Non-Uniformity Of Projection Distributions Attenuates Resolution In Cryo-Em, Philip R Baldwin, Dmitry Lyumkis

Faculty, Staff and Students Publications

Virtually all single-particle cryo-EM experiments currently suffer from specimen adherence to the air-water interface, leading to a non-uniform distribution in the set of projection views. Whereas it is well accepted that uniform projection distributions can lead to high-resolution reconstructions, non-uniform (anisotropic) distributions can negatively affect map quality, elongate structural features, and in some cases, prohibit interpretation altogether. Although some consequences of non-uniform sampling have been described qualitatively, we know little about how sampling quantitatively affects resolution in cryo-EM. Here, we show how inhomogeneity in any projection distribution scheme attenuates the global Fourier Shell Correlation (FSC) in relation to the number …

The Longitudinal Parallel Process Analysis Of Biomarkers Of Oxidative Stress, Symptom Clusters, And Cognitive Function In Children With Leukemia, Mary C Hooke, Daniel Hatch, Marilyn J Hockenberry, Susan Whitman, Ida Moore, David Montgomery, Kari Marano, Pauline Mitby, Michael E Scheurer, Olga Taylor, Wei Pan

Faculty, Staff and Students Publications

Background: During treatment for acute lymphoblastic leukemia (ALL), children report co-occurring symptoms of fatigue, sleep disturbance, pain, nausea, and depression as a symptom cluster. Central nervous system–directed ALL therapies also put children at risk for cognitive impairments. Cancer therapies can cause an increase in oxidative stress, which may contribute to treatment-related symptoms. This study examined the longitudinal relationships between biomarkers of oxidative stress in the cerebrospinal fluid, the Childhood Cancer Symptom Cluster–Leukemia (CCSC-L), and cognition, in children over the first year of ALL treatment. Methods: Glutathione (GSH) biomarkers of oxidative stress were measured in cerebrospinal fluid collected during treatment lumbar …

Aromatase Inhibitors Plus Weight Loss Improves The Hormonal Profile Of Obese Hypogonadal Men Without Causing Major Side Effects, Georgia Colleluori, Rui Chen, Christie G Turin, Francesca Vigevano, Clifford Qualls, Biju Johnson, Sanjay Mediwala, Dennis T Villareal, Reina Armamento-Villareal

Faculty, Staff and Students Publications

Objective: In obese men, the increased expression of the aromatase enzyme in adipose tissue leads to high conversion of androgens to estrogens contributing to hypogonadotropic hypogonadism (HHG). Our objective is to evaluate efficacy and safety of weight loss (WL) plus aromatase inhibitor (AI) therapy in severely obese men with HHG. We hypothesize that AI+WL will be more effective as compared to WL alone in improving the hormonal profile, thus muscle strength and symptoms of HHG (primary outcomes), with no significant adverse effects on lean mass, metabolic profile, and bone mineral density (secondary outcomes).

Design: Randomized double-blind placebo-controlled pilot trial.

Methods: …

Association Of Use Of Rehabilitation Services With Development Of Dementia Among Patients With Rheumatoid Arthritis: Analysis Of Domestic Data In Taiwan, Ming-Chi Lu, Hanoch Livneh, Chieh-Tsung Yen, Hua-Lung Huang, Miao-Chiu Lin, Shu-Wen Yen, Ning-Sheng Lai, Tzung-Yi Tsai

Counselor Education Faculty Publications and Presentations

Objectives: Rheumatoid arthritis (RA) was found to trigger the higher risk of dementia. Limited information, however, is available on whether the use of rehabilitation services (RS), an integral part of healthcare programs, can lessen dementia risk for RA subjects. The aim of this study was to determine the relationship of RS use to the development of dementia in RA patients.

Methods: We identified 2,927 newly diagnosed patients with RA, 20–70 years of age between 1998 and 2007, from a national health insurance database. 965 patients from this sample received RS, and 1,962 patients were designated as a control group (non-RS …

Perioperative Acute Kidney Injury, Sam D Gumbert, Felix Kork, Maisie L Jackson, Naveen Vanga, Semhar J Ghebremichael, Christy Y Wang, Holger K Eltzschig

Faculty, Staff and Students Publications

Perioperative organ injury is among the leading causes of morbidity and mortality of surgical patients. Among different types of perioperative organ injury, acute kidney injury occurs particularly frequently and has an exceptionally detrimental effect on surgical outcomes. Currently, acute kidney injury is most commonly diagnosed by assessing increases in serum creatinine concentration or decreased urine output. Recently, novel biomarkers have become a focus of translational research for improving timely detection and prognosis for acute kidney injury. However, specificity and timing of biomarker release continue to present challenges to their integration into existing diagnostic regimens. Despite many clinical trials using various …

Gamebird Management In Southwestern North Dakota, Alexander Curtis Rischette

Range Science

Grassland biodiversity is threatened by habitat loss associated with human expansion. In response, land managers need to collect wildlife data more efficiently and implement management practices that promote wildlife habitat. To assess methods and land use practices for managing game birds in the Northwestern Great Plains, we quantified the behavioral response of sharp-tailed grouse (Tympanucus phasianellus) to small unmanned aerial systems (sUAS) exposure and measured production of upland nesting ducks on former Conservation Reserve Program land. We found survey altitudes ≥ 121 m above ground level and moderate wind speeds reduced behavior response of grouse. For waterfowl production, we found …

Butterfly Community And Behavioral Responses To Restored Disturbance Regimes, Brooke Karasch

Range Science

Grassland organisms evolved alongside the interaction of fire and grazing, but modern management often decouples these disturbances. In order to analyze the effects of reintroducing this interaction, we implemented four treatments. Two of these treatments were variations of patch-burn grazing, one was modified rest-rotation grazing, and one was season-long grazing. We chose to monitor the butterfly response to these treatments because butterflies have short generations, require a wide variety of resources, and are easily identifiable as adults. We quantified both the butterfly community and the behavioral time budgets of two species. We found that the butterfly community is more species-rich …

A Quantum Algorithm For Automata Encoding, Edison Tsai, Marek Perkowski

Electrical and Computer Engineering Faculty Publications and Presentations

Encoding of finite automata or state machines is critical to modern digital logic design methods for sequential circuits. Encoding is the process of assigning to every state, input value, and output value of a state machine a binary string, which is used to represent that state, input value, or output value in digital logic. Usually, one wishes to choose an encoding that, when the state machine is implemented as a digital logic circuit, will optimize some aspect of that circuit. For instance, one might wish to encode in such a way as to minimize power dissipation or silicon area. For …

Multi-Scale Decision Network With Feature Fusion And Weighting For Few-Shot Learning, Xiaoru Wang, Bing Ma, Zhihong Yu, Fu Li, Yali Cai

Electrical and Computer Engineering Faculty Publications and Presentations

Learning from limited labelled examples is key a research hotspot with excellent scenarios and potential applications. Currently, most of metric learning-based few-shot models still have the problem of low recognition accuracy. This is mainly because that they only use the top-layer abstract feature with semantic information, which ignores the low-layer features that are also critical for the few-shot recognition. Therefore, the extracted features do not have abundant representation ability, and it is difficult to recognize easily confusing objects. Moreover, they usually adopt a fixed distance function or train a comparable network to measure features. These methods lack adaptability, cannot sufficiently …

Defending Against Adversarial Attacks In Transmission- And Distribution-Level Pmu Data, Jun Jiang, Xan Liu, Eduardo Cotilla-Sanchez, Robert B. Bass, Xinghui Zhao

Electrical and Computer Engineering Faculty Publications and Presentations

Phasor measurement units (PMUs) provide highfidelity data that improve situation awareness of electric power grid operations. PMU datastreams inform wide-area state estimation, monitor area control error, and facilitate event detection in real time. As PMU data become more available and increasingly reliable, these devices are found in new roles within control systems, such as remedial action schemes and early warning detection systems. As with other cyber physical systems, maintaining data integrity and security pose a significant challenge for power system operators. In this paper, we present a comprehensive analysis of multiple machine learning techniques to detect malicious data injection within …

Jost Delbrück: My Friend, Roger B. Dworkin

Articles by Maurer Faculty

A profile and tribute to the international legal scholar Jost Delbrück (1935-2020), written by his good friend and colleague Roger Dworkin. Delbrück was not only a graduate of the Indiana University School of Law, but was also a Maurer faculty member.

Rights Should Not Vary Based On Offense Severity, Russell L. Christopher

Articles, Chapters in Books and Other Contributions to Scholarly Works

Some constitutional rights of criminal procedure apply unequally, varying based on offense (or punishment) severity. Of these, some vary proportionally, attaching or strengthening as offense severity increases. For example, the Sixth Amendment guarantees the rights to appointed counsel for indigents and jury trial for defendants charged with any felony but only some misdemeanors. In contrast, other rights are inversely proportional. For example, the strength or applicability of some aspects of the Fourth Amendment right against unreasonable searches and seizures and the Eighth Amendment right against excessive bail decrease as offense severity increases. This Article examines whether such rights should vary …

Large Sinus Of Valsalva Aneurysm Complicated By Thrombus Formation, Milan Ravishankar, Ali Ghergherehchi, Jing Liu, Ernesto Jimenez, Umair Khalid

Faculty, Staff and Students Publications

Sinus of Valsalva aneurysm (SOVA) is an unusual cardiac anomaly that is potentially fatal with rupture. It is often asymptomatic but has various presentations. We describe a case of a 67-year-old male who presented with atypical chest pain. Transthoracic echocardiogram and cardiac computed tomography scan confirmed a large SOVA complicated by thrombus formation and compression of the left atrium and left ventricular outflow tract. The patient successfully underwent a Bentall procedure-surgical aortic aneurysm repair with mechanical aortic valve conduit. We discuss several clinical decision-making branch points to highlight the complexity of managing this condition. Even in asymptomatic or minimally symptomatic …

Hypogonadism, Type-2 Diabetes Mellitus, And Bone Health: A Narrative Review, Vittoria Russo, Rui Chen, Reina Armamento-Villareal

Faculty, Staff and Students Publications

One of the complications from chronic hyperglycemia and insulin resistance due to type 2 diabetes mellitus (T2DM) on the hypothalamic-pituitary-gonadal axis in men is the high prevalence of hypogonadotropic hypogonadism (HH). Both T2DM and hypogonadism are associated with impaired bone health and increased fracture risk but whether the combination results in even worse bone disease than either one alone is not well-studied. It is possible that having both conditions predisposes men to an even greater risk for fracture than either one alone. Given the common occurrence of HH or hypogonadism in general in T2DM, a significant number of men could …

Tigard-Tualatin School District Enrollment Forecast 2020-21 To 2029-30, Portland State University. Population Research Center, Charles Rynerson, Joshua Ollinger

School District Enrollment Forecast Reports

This report presents the results of a demographic study conducted by the Portland State University Population Research Center (PRC) for the Tigard‐Tualatin School District (TTSD). The study includes analyses of population, housing and enrollment trends affecting the District in recent years, estimates of the impacts of housing development on TTSD enrollment, and forecasts of district‐wide and individual school enrollments for the 2020‐21 to 2029‐30 school years.