Digital Commons Network^™

Bootcmatch: A Software Package For Bootstrap Amg Based On Graphweighted Matching, Pasqua D'Ambra, Salvatore Filipone, Panayot S. Vassilevski

Mathematics and Statistics Faculty Publications and Presentations

This article has two main objectives: one is to describe some extensions of an adaptive Algebraic Multigrid (AMG) method of the form previously proposed by the first and third authors, and a second one is to present a new software framework, named BootCMatch, which implements all the components needed to build and apply the described adaptive AMG both as a stand-alone solver and as a preconditioner in a Krylov method. The adaptive AMG presented is meant to handle general symmetric and positive definite (SPD) sparse linear systems, without assuming any a priori information of the problem and its origin; the …

Clustering And Multifacility Location With Constraints Via Distance Function Penalty Methods And Dc Programming, Mau Nam Nguyen, Thai An Nguyen, Sam Reynolds, Tuyen Tran

Mathematics and Statistics Faculty Publications and Presentations

This paper is a continuation of our effort in using mathematical optimization involving DC programming in clustering and multifacility location. We study a penalty method based on distance functions and apply it particularly to a number of problems in clustering and multifacility location in which the centers to be found must lie in some given set constraints. We also provide different numerical examples to test our method.

Associative Learning In Biochemical Networks, Yasmin S. Sepulveda

REU Final Reports

Emerging evidence suggests that biochemical networks can be modeled by exploiting their ability to learn through associative learning. This type of learning in biomolecular structures gives it a the advantage to be able to be computationally model, and condition. Associative learning in biochemical networks is a developing area of study that once understood, can further develop diagnostic applications, and be used as tools for data analysis. Although it is a open ended project the motive of this research was to find the the best method of association learning being used in current work. After reading current work three associative learning …

The Transport Of Non-Spherical Particles In A Simulated Ocean Environment, Hannah Reed

REU Final Reports

Plastic particles contaminating the world’s oceans and accumulating in oceanic gyres has become a ubiquitous problem and the solution involving how to clean up the debris efficiently has still not been found. One particular issue is understanding where the greatest densities of debris may be. It is known that floating trash will tend to accumulate in large circular systems of ocean water called gyres, however these areas span thousands of miles of ocean. The present study aims to understand the transport of anisotropic particles in conditions similar to an oceanic environment using experimental methods in an effort to better predict …

Day Laborers & Extreme Heat: Recommendations For Reducing Heat Stress, Sandra Mena

REU Final Reports

The Intergovernmental Panel on Climate Change (IPCC) has various Global Climate Models (GCM). One of them, models three greenhouse gases. The increasing amount of greenhouse gases are just a fraction of factors that fuel global climate change. According to the IPCC 2014, climate related extremes such as heatwaves are likely to occur more regularly and are likely to increase in duration. Since 1979, there has been over 9000 deaths that occurred from heat-related incidents in the United States (U.S. Environmental Protection Agency, 2016). Which brings attention to population groups who are exposed to hot temperatures on a frequent basis due …

Hydro-Climatological Summer Trends In The Continental United States, Naya Mairena Flores

REU Final Reports

We investigated trends in air temperature, stream temperature and discharge for rivers across the continental United States from the summer months of 1996 to 2016. Using GAGES II from USGS and PRISM and programming language R we analyzed specific hydrological trends in Mann-Kendall’s tests. After collecting the slope values whether they were negative or positive and the P-Values, the significance of that slope, we mapped slopes of trends in GIS. Stream temperature increased 12% of stations across the summer, while air temperature increased 22% of stations, and discharge decreased 15% of stations, respectively. Seven day moving average of daily maximum …

Deciphering The Rules Of Cell-To-Cell Coupling By Molecular Modeling And Simulation, Linda D. Lee

REU Final Reports

Intercellular communication is vital for quick adjustments and maintenance for cell function and development. Gap junctions are membranes channel proteins that enable this direct communication between adjacent cells throughout the body. The compatibility of connexins (Cx), which make up a gap junction, determines whether a gap junction can form. Though many studies show which connexins are compatible, the molecular basis is not known (Bai & Wang, 2014). Through computational modeling, we identify the residues that energetically contribute most favorably at the docking interface of homotypic and heterotypic combinations of Cx43, Cx46, and Cx50 gap junctions. However, due to instability of …

Derivation Of The Hellinger-Reissner Variational Form Of The Linear Elasticity Equations, And A Finite Element Discretization, Bram Fouts

REU Final Reports

In this paper we are going to derive the linear elasticity equations in the Strong Form to the Hellinger Reissner Form. We find a suitable solution to solve our stress tensor. Then we will use finite element discretization from. We will run tests on a unit cube and multiple other shapes, which are described at the end. We view the different magnitudes of the displacement vector of each shape.

On Habits And Functions In Everyday Aesthetics, Kalle Puolakka

Contemporary Aesthetics (Journal Archive)

A group of theorists in everyday aesthetics, named restrictivists, have explicated the notion of the everyday in terms of a particular stance of everydayness that they believe, in time, comes to characterize people’s relationships to their daily things and environments. The everyday is revealed to be something habitual and routine that, despite its ordinariness, provides a pleasurable sense of safety and trust. In this paper, I present a series of considerations drawing on John Dewey’s notion of habit, on the one hand, and Jane Forsey’s account of the aesthetics of design, on the other, that call into question the general …

The Aesthetics Of Silence: A Matter Of Spatial Critique In The Works Of Marcel Broodthaers, Elsbeth Dekker

Contemporary Aesthetics (Journal Archive)

In 1967 Susan Sontag published her essay, "The Aesthetics of Silence,” on the craving towards silence in artistic movements of the nineteenth and twentieth centuries. Even though it appears that notions of silence are still influential within the visual arts, theoretical writings on silence are nearly absent. This article explores how notions of silence emerged in the early works of Marcel Broodthaers, by scrutinizing his works, related to Pense-Bête, together with the writings of Susan Sontag and related ideas from Stéphane Mallarmé and Theodor Adorno. Through a vivisection of these early works of Broodthaers, this article argues how silence …

Assessment As Critical Programmatic Reflection, Vicki Reitenauer, Rowanna L. Carpenter

Women, Gender, and Sexuality Studies Faculty Publications and Presentations

This article argues that general education assessment is an opportunity for engaging faculty and the general education program as a whole in critical reflection on the practices and pedagogies that affect the entire undergraduate body. Through intentional assessment practices tied to learning outcomes, pedagogical expectations, and faculty and student classroom experience, an assessment program can meet accreditation expectations while serving as a rich location for critical reflection and continuous improvement. To illustrate, this article takes the reader through a year in the life of University Studies' assessment at Portland State University. It provides details about the individual elements of our …

"Diversity," Anti-Racism, And Decolonizing Service Learning In The Capstone Experience, W. Tracy Dillon, Judy Bluehorse Skelton, Vicki Reitenauer

Women, Gender, and Sexuality Studies Faculty Publications and Presentations

This retrospective on service learning in the development of University Studies Capstones, the senior-level requirement in the University Studies general education program at Portland State University, explores how the original framers of University Studies anticipated the pitfalls of "pedagogies of whiteness" in deploying service learning as the hallmark pedagogical feature of the program; includes a case study of a Capstone course that centers on Indigenous ways of knowing, learning, and teaching through its pedagogy; and identifies the formative presence of Capstone faculty committed to anti-racist and anti-imperialist pedagogies. From a variety of institutional and disciplinary standpoints and through long association …

X-Rated And Excessively Long: Ji-Amari In Hayashi Amari's Tanka, Jon P. Holt

World Languages and Literatures Faculty Publications and Presentations

As a fixed 31-syllable form of short poetry, Japan's tanka is one of the world's oldest forms of still-practiced poetry, with examples perhaps dating back to the fifth century. In the modern periods of Meiji (1868-1912) and Taishō (1912-1926), poets radically reformed the genre, expanding diction beyond millennium-old classical limits, thereby allowing poets to write not only about cherry blossoms and tragic love but also about things like steam trains and baseball games; although today many tanka poets in practicing circles still employ classical Japanese, many modern masters innovated the genre by skillfully blending in colloquial language. Like their modern …

Prospective Comparison Of Point-Of-Care Device And Standard Analyzer For Monitoring Of International Normalized Ratio In Outpatient Oral Anticoagulant Clinic, Bushra Moiz, Ahmed Raheem, Anila Rashid, Muhammad Hasan, Lena Jafri

Department of Pathology and Laboratory Medicine

Point-of-care testing (POCT) coagulometers are increasingly being used in the hospital setting and patients’ self-testing. We determined the agreement of prothrombin time international normalized ratio (INR) results by POCT coagulometer and laboratory instrument through a comparative analysis and investigated whether the results of POCT coagulometer can reliably be used without being confirmed by standard laboratory analyzer. A total of 200 INR measurements by POCT coagulometer (CoaguChek XS Pro) and laboratory analyzer (Sysmex CS2000i) were compared using Passing-Bablok regression analysis and Bland-Altman plot. Agreement of the INR measurement was further analyzed in relation to dosing decision. The correlation of INR measurements …

Neurological Involvement Associated With Plasmodium Vivax Malaria From Pakistan, Yousaf Abdullah Khan, Usman Hameed Mian, Najia Karim Ghanchi, Ali Bin Sarwar Zubairi, Mohammad Asim Beg

Department of Pathology and Laboratory Medicine

Plasmodium vivax is the most common specie causing malaria outside Africa with approximately 13.8 million reported cases worldwide. We report case of P. vivax infection with cerebral involvement. A nine year old boy presented with high grade fever accompanied by projectile vomiting and abnormal behavior later he developed seizures, shock, and unconsciousness. P. vivax monoinfection was diagnosed based on peripheral smears and PCR. After antimalarial therapy, patient made full recovery. Current case highlights increasing trend of cerebral complications caused by P. vivax.

High Heterotrophic Counts In Potable Water And Antimicrobial Resistance Among Indicator Organisms In Two Peri-Urban Communities Of Karachi, Pakistan, Sadia Shakoor, Imran Ahmed, Saima Mukhtiar, Israr Ahmed, Farzeen Hirani, Shazia Sultana, Rumina Hasan

Department of Pathology and Laboratory Medicine

Objective: Fecal contamination of potable water leads to unsafe water supply. Although many urban areas of large metropolitan cities receive safe water, peri-urban areas are often not monitored by public health authorities and water supply and quality remain unknown. We assessed microbiological quality and rates of antimicrobial resistance in viable indicator bacteria in two peri-urban communities of Karachi, Pakistan. Water samples were collected over 5 months (October 2015 to February 2016) from these peri-urban communities and samples were processed for microbiological quality as per Standing Committee of Analysts, United Kingdom and World Health Organization guidelines and criteria for drinking water. …

Executive Summary, Jill Castek, Gloria Jacobs, Cindy Gibbon, Tyler Frank, Amy Honisett, Judy Anderson

Presentations and Publications

The Advancing Digital Equity in Public Libraries: Assessing Library Patrons’ Problem Solving in Technology Rich Environments research project was supported by a National Leadership Grant from the Institute of Museum and Library Services (IMLS) grant. It was conducted over the course of 3 years in cooperation with the Multnomah County Library in Portland, Oregon. The research was guided by a national advisory group made up of scholars and practitioners in the fields of adult education, digital literacies, online reading and research, and library services.

Digital Problem Solving: The Literacies Of Navigating Life In The Digital Age, Gloria Jacobs, Jill Castek

Presentations and Publications

Digital problem solving reflects an individual’s ability to navigate and use multiple digital resources in order to accomplish goals across domains including work, personal interests, educational pursuits, social or professional networking, civic participation, and for future uses not yet conceptualized. To accomplish these goals, individuals need to enact everyday literacies (Knobel, 1999) that include: “asking questions, constructing meaning from [information and] data, generating [and sharing] creative solutions, and reflecting on how to improve these solutions for different contexts” (Manderino & Castek, 2016, p. 79). As individuals move through daily lives, they are constantly traversing disciplines as they collect information and …

Project Summary, Jill Castek, Gloria Jacobs, Cindy Gibbon, Tyler Frank, Amy Honisett, Judy Anderson

Presentations and Publications

Summary of the project, Advancing Digital Equity in Public Libraries: Assessing Library Patrons’ Problem Solving in Technology Rich Environments.

The purpose of the research was to examine and understand the digital problem solving processes of vulnerable adults.

Documenting Digital Problem Solving: Qualitative Results Strategies And Approaches For Digital Problem Solving, Jill Castek, Gloria Jacobs, Cindy Gibbon, Tyler Frank, Amy Honisett, Judy Anderson

Data

This document shares qualitative analysis and findings from a 3 year research effort focused on digital problem solving. Key concepts emerging from the analysis are operationally defined. The document describes how individuals engaged in digital problem solving and describes their cognitive and affective strategies. The analysis reveals the vital role of examining digital problem solving through a diversity of contexts. Different contexts require the use of a range of approaches applied in different ways for different purposes. Data suggest that the number, frequency, and complexity of contexts in which an individual is familar plays an important role in how individuals …

Observing Digital Problem Solving Checklist, Jill Castek, Gloria Jacobs, Cindy Gibbon, Tyler Frank, Amy Honisett, Judy Anderson

Digital Problem Solving Toolkit

This adaptable tool was developed from research findings from a 3 year research study exploring digital problem solving. It is intended to be used by a librarian/staff/volunteer during an in-person interview and observation context. It is designed to better understand how to shape interactions with a library user when they come into the library for assistance that requires gathering, exploring, and making sense of online resources. The tool can be used to support individual or small group interactions. It contains a series of questions that provide insight into the knowledge and experiences of the library user as well as the …

Defining Digital Problem Solving, Jill Castek, Gloria Jacobs, Cindy Gibbon, Tyler Frank, Amy Honisett, Judy Anderson

Digital Problem Solving Toolkit

This document introduces the definition of digital problem solving that emerged from a three year long research project. Digital problem solving is described as being related to, but unique from, digital literacies and basic digital skills. Specifically, digital problem solving involves the use of the skills, strategies, and approaches (including mindsets) needed to navigate online in everyday contexts, including the library, and use novel resources, tools, and interfaces in efficient and flexible ways to accomplish personal and professional goals. Authors describe how the definition of digital problem solving was developed and applications within libraries, Adult Education, and Lifelong Learning.

On Monetary And Non-Monetary Interventions To Combat Corruption, Ritwik Banerjee, Arnab Mitra

Economics Faculty Publications and Presentations

We study the relative effectiveness of extrinsic monetary disincentives and intrinsic non-monetary disincentives to corruption, using a harassment bribery game. In doing so, we also test the Beckerian prediction that at the same level of expected payoff, a low probability of detection with high fine is a stronger deterrent to corruption than a high probability of detection with low fine. In Experiment 1, two treatments are designed to study the effect of a low probability of detection with high fine and a high probability of detection with low fine, on bribe taking behavior. In Experiment 2, subjects participate in the …

Privilege And Oppression In Counselor Education: An Intersectionality Framework, Christian D. Chan, Deanna N. Cor, Monica P. Band

Counselor Education Faculty Publications and Presentations

Multiculturalism and social justice are considered major forces in the counseling profession, revolutionizing the complexity of social identity, cultural identity, and diversity. Although these major forces have influenced the profession, many challenges exist with their implementation within counselor education curriculum and pedagogy. A major challenge is the complex dynamics of privilege and oppression that both counselor educators and counseling students face. This article discusses the use of intersectionality to approach counselor education pedagogy and practice.

Chinese Herbal Medicine Therapy And The Risk Of Mortality For Chronic Hepatitis B Patients With Concurrent Liver Cirrhosis: A Nationwide Population-Based Cohort Study, Tzung-Yi Tsai, Tsung-Hsing Hung, Hanoch Livneh, I-Hsin Lin, Ming-Chi Lu, Chia-Chou Yeh

Counselor Education Faculty Publications and Presentations

Chronic hepatitis B (CHB) is increasingly recognized as a public health problem in Taiwan. After affected patients are diagnosed with contaminant liver cirrhosis (LC), adverse clinical outcomes, especially death, are common. This study aimed to investigate the effect of Chinese herbal medicine (CHM), an essential branch of Traditional Chinese medicine (TCM), on the mortality risk among CHB patients with contaminant LC. This longitudinal cohort study used the Taiwanese National Health Insurance Research Database to identify 1522 patients 20–70 years of age with newly diagnosed CHB with LC during 1998–2007. Among them, 508 (33.37%) had received CHM products after the onset …

A Pilot Randomized Clinical Trial Comparing Three Brief Group Interventions For Individuals With Tinnitus, Erin Martz, Margaret Chesney, Hanoch Livneh, Chennettee Jelleberg, Bret Fuller, James A. Henry

Counselor Education Faculty Publications and Presentations

Background: Tinnitus (ie, ear or head noises not caused by external sounds) is common among the general population and is the most prevalent service-connected disability in the United States’ Department of Veterans Affairs system. While numerous clinical interventions have been created to systematically address the range of issues caused by tinnitus, only a few tinnitus interventions have focused on both teaching and assessing coping strategies. The present pilot study involved a randomized clinical trial comparing 3 brief group interventions to a usual-care (UC) group (ie, a wait-list control group): the first intervention based on acceptance and commitment therapy (ACT), a …

Tinnitus, Depression, Anxiety, And Suicide In Recent Veterans: A Retrospective Analysis, Erin Martz, Chennettee Jelleberg, Deborah D. Dougherty, Charles Wolters, Aaron Schneiderman

Counselor Education Faculty Publications and Presentations

Objectives: The purpose of this project was to investigate whether there is an association between tinnitus diagnosis and suicide and whether depression and anxiety strengthen that association. Given that tinnitus is the top service-connected disability among U.S. Veterans (Veterans Benefits Administration, 2016) and that suicide among Veterans has been occurring at a higher frequency as compared with community suicide rates (Hoffmire et al., 2015), the possible associations between tinnitus and suicide will be explored. Co-occurring physical conditions also will be examined to determine if they increase the risk of suicide in the context of tinnitus.

Design: …

Epithelial Cell Lysates Induce Exos Expression And Secretion By Pseudomonas Aeruginosa, Victoria Hritonenko, Matteo Metruccio, David J. Evans, Suzanne Fleiszig

Faculty Publications & Research of the TUC College of Pharmacy

No abstract provided.

Il-1r And Myd88 Contribute To The Absence Of A Bacterial Microbiome On The Healthy Murine Cornea, Stephanie J. Wan, Aaron B. Sullivan, Peyton Shieh, Matteo M. E. Metruccio, David J. Evans, Carolyn R. Bertozzi, Suzanne M. J. Fleiszig

Faculty Publications & Research of the TUC College of Pharmacy

Microbial communities are important for the health of mucosal tissues. Traditional culture and gene sequencing have demonstrated bacterial populations on the conjunctiva. However, it remains unclear if the cornea, a transparent tissue critical for vision, also hosts a microbiome. Corneas of wild-type, IL-1R (-/-) and MyD88 (-/-) C57BL/6 mice were imaged after labeling with alkyne-functionalized D-alanine (alkDala), a probe that only incorporates into the peptidoglycan of metabolically active bacteria. Fluorescence in situ hybridization (FISH) was also used to detect viable bacteria. AlkDala labeling was rarely observed on healthy corneas. In contrast, adjacent conjunctivae harbored filamentous alkDala-positive forms, that also labeled …

Evaluation Of Alternative Methods For Leafy Spurge Control In The Northern Great Plains, Tracy Lynn Ellig

Range Science

Leafy spurge (Euphorbia esula L.) is a costly noxious weed to manage in the Northern Great Plains; it invades rangelands and displaces native and desirable vegetation. Our first objective was to test the recommended full rate and half rate of selected herbicides applied in September following a spring burn on a leafy spurge invaded plant community. Our second objective was to determine if raffinate (desugared beet molasses) applied to leafy spurge invaded rangeland would attract cattle to consume leafy spurge. The aminocyclopyrachlor with chlorosulfuron treatment had the best leafy spurge control at the full rate, with stem density reductions of …