Digital Commons Network^™

Extending Tensor Virtual Machine To Support Deep-Learning Accelerators With Convolution Cores, Yanzhao Wang, Fei Xie

Computer Science Faculty Publications and Presentations

Deep-learning accelerators are increasingly popular. There are two prevalent accelerator architectures: one based on general matrix multiplication units and the other on convolution cores. However, Tensor Virtual Machine (TVM), a widely used deep-learning compiler stack, does not support the latter. This paper proposes a general framework for extending TVM to support deep-learning accelerators with convolution cores. We have applied it to two well-known accelerators: Nvidia's NVDLA and Bitmain's BM1880 successfully. Deep-learning workloads can now be readily deployed to these accelerators through TVM and executed efficiently. This framework can extend TVM to other accelerators with minimum effort.

A Multi-Species Study On Several Types Of Visitor Effects On The Behavior And Physiology Of Animals At The Oregon Zoo, Laurel Berylline Fink

Dissertations and Theses

The visitor effect on zoo animals is one of the expanding research topics in zoo animal research. As visitors are a mandatory feature of zoological institutions, understanding their effects on zoo animals is imperative for maximizing zoo animal welfare. Zoo animals are subject to many anthropogenic influences: visual, olfactory, and audible, for example. This dissertation investigates several of the effects of visitor presence and its relative influence on six mammalian species: cheetahs (Acinonyx jubatus), African painted dogs (Lycaon pictus), Asian elephants (Elephas maximus indicus & Elephas maximus borneensis), giraffes (Giraffa camelopardalis reticulata & …

How Can Blockchain Contribute To Developing Country Economies? A Literature Review On Application Areas, Tom Gillpatrick, Semra Boğa, Oncel Aldanmaz

Business Faculty Publications and Presentations

Blockchain technology originally finding applications in Fintech and supply chain management is rapidly expanding applications to other industries as well as the public sector. “Blockchain has been compared to the invention of the internet and its comprehensive impact on almost every industry.” R. Beck and B. Markey-Towler (2017) A recent study by PWC (2020) found that, “Blockchain technology has the potential to boost global gross domestic product by $1.76 trillion USD over this decade.” It has been argued that the digital revolution has favored more developed nations and that has helped create a “digital divide” with less developed nations. Business …

Who Is On The Bandwagon? Core And Periphery In Mixed Methods Research, David L. Morgan

Sociology Faculty Publications and Presentations

The rapid growth of mixed methods research over the past two decades matches what Fujimura (1989) called a “bandwagon effect.” This study compares articles from the Journal of Mixed Methods Research, representing the core of the field, to a more peripheral set of randomly drawn articles. A content analysis of the two sets of articles shows strong differences, with the random sample dominated by convergent designs and lower integration between the qualitative and quantitative results. This research contributes to the field of mixed methods by showing systematic differences between articles published in its flagship journal versus a broad sample of …

Faculty Senate Monthly Packet May 2022, Portland State University Faculty Senate

Faculty Senate Monthly Packets

The May 2, 2022 Monthly packet includes the May agenda and appendices and the Faculty Senate minutes and attachments from the meeting held April 4, 2022.

Black Carbon Dominated Dust In Recent Radiative Forcing On Rocky Mountain Snowpacks, Kelly E. Gleason, Joseph R. Mcconnell, Monica M. Arienzo, Graham Sexstone, Stefan Rahimi

Environmental Science and Management Faculty Publications and Presentations

The vast majority of surface water resources in the semi-arid western United States start as winter snowpack. Solar radiation is a primary driver of snowmelt, making snowpack water resources especially sensitive to even small increases in concentrations of light absorbing particles such as mineral dust and combustion-related black carbon (BC). Here we show, using fresh snow measurements and snowpack modeling at 51 widely distributed sites in the Rocky Mountain region, that BC dominated impurity-driven radiative forcing in 2018. BC contributed three times more radiative forcing on average than dust, and up to 17 times more at individual locations. Evaluation of …

Proposed Application For An Entity Component System In An Energy Services Interface, Tylor Slay, Grace B. Spitzer, Robert B. Bass

Electrical and Computer Engineering Faculty Publications and Presentations

An Entity Component System is a data-oriented architecture originally developed to streamline video game performance. Despite being quite new, Entity Component Systems are relatively well established within the video game industry due to the cutting edge nature of research into performance, especially around graphics. However, Entity Component Systems have not been widely examined or adopted outside of that industry. We propose adopting an Entity Component Systems framework to serve the needs of an Energy Service Interfaces. We examine the needs of an Energy Service Interface, give an overview of open-source Entity Component Systems (ECSs) libraries, examine some preliminary performance results …

Book Deserts Of Litlandia: A Case Study Of Book Deserts In The Literary City Of Portland, Oregon In Relation To Book Waste From It’S Largest Independent Bookstore, Megan Jessop

Book Publishing Final Research Papers

The goal of this project was to look at book waste from a local independent bookstore, Powell’s Books, in Portland, Oregon and compare local donation and literacy programs—such as Little Free Libraries (LFL), Children’s Book Bank, and programs with the Multnomah County Library (MCL) to see if there were books or print materials that were being thrown away, recycled, and/or turned into pulp that could have been utilized in other ways towards literacy efforts. Through a process of interviews with staff at Portland’s largest local independent bookstore, MCL, a LFL steward, and Children’s Book Bank, as well as analysis of …

Raps Sheet, May 2022, Retirement Association Of Portland State

RAPS Sheet: Monthly Newsletter

No abstract provided.

Demonstration And Acceptability Of A Safer Conception Intervention For Men With Hiv In South Africa: Pilot Cohort Study, Lynn T. Matthews, Christina Psaros, Mxolisi Mathenjwa, Nzwakie Mosery, Letitia Rambally Greener, Hazar Khidir, Madeline Pratt, David Bangsberg, Multiple Additional Authors

OHSU-PSU School of Public Health Faculty Publications and Presentations

Background: Many men with HIV (MWH) want to have children. HIV viral suppression minimizes sexual HIV transmission risks while allowing for conception and optimization of the health of men, their partners, and their infants.

Objective: This study developed and evaluated the feasibility and acceptability of an intervention to promote serostatus disclosure, antiretroviral therapy (ART) uptake and adherence, and viral suppression among MWH who want to have children in South Africa.

Methods: We developed a safer conception intervention (Sinikithemba Kwabesilisa or We give hope to men) to promote viral suppression via ART uptake and adherence, HIV serostatus disclosure, and other safer …

Randomized, Clinical Trials On The Effects Of Robotic-Assisted Gait Training For Stroke Subjects: A Scoping Review, Daniel K. Hufnagel

University Honors Theses

Robotic-assisted gait training has been cited as a potential rehabilitation intervention for the recovery of ambulation in hemiplegic stroke patients. Previous reviews on robotic gait training have elicited a need for more randomized, clinical studies on robotic gait training for the development of evidence-based intervention protocols and elimination of research bias. The purpose of this scoping review was to provide an updated examination of the clinical research on robotic assisted gait training and address any research gaps to be considered for future research. This review included randomized, clinical trials on stroke patients with a robotic-assisted treatment (RAGT) and conventional gait …

Urban Literacy: Learning To Read The City Around You, Leanne Claire Serbulo

PDXOpen: Open Educational Resources

This book introduces students to the basic concepts of urban studies. It is an interdisciplinary text that was developed for lower-division undergraduate students. The book is organized into thematic chapters that explore different aspects of urban life, such as the environment, housing, and culture. Each chapter introduces a new way of conceptualizing the city, presents core theories and concepts, and provides examples and case studies from cities around the globe to illustrate the ideas presented in the text. At the end of each chapter, there are review questions and a series of interactive field activities where students can apply the …

The Connections Between Innovation, Culture, And Expertise In Water Infrastructure Organizations, Alice Brawley-Chesworth

Dissertations and Theses

Infrastructure organizations are notoriously conservative and resistant to change, even when faced with wicked problems that cannot be solved with the same thinking used in the past. In the water sector, this resistance to change has been linked to an industry culture that is based in a single, engineering-oriented knowledge system. Scholars have suggested that diversification of knowledge systems is necessary for implementation of innovations that will move the sector forward to solve wicked problems.

This research used a qualitative case study approach comparing two water sector organizations in Portland, Oregon. One organization included members who shared an engineering knowledge …

Oregon’S Place-Based Integrated Water Resources Planning Program: A Participatory Evaluation, Rebecca Mclain, Sadie Boyers, Jess Downey, Emily Jane Davis

National Policy Consensus Center Publications

In 2015, the Oregon Legislature passed ORS 536.220, which directed the Oregon Water Resources Department (OWRD) to develop an integrated water resources strategy and gave it authority to make grants and provide technical assistance to communities seeking to engage in place-based planning integrated water resources planning (hereafter place-based planning). The legislation provided a means by which Oregon communities could coordinate an assessment of the water needs of instream and out-of-stream water interests in their area and reach agreement on how those needs could be met now and in the future. Legislators structured the program to give persons who live, work, …

A Hybrid Approach To Improve Flood Forecasting By Combining A Hydrodynamic Flow Model And Artificial Neural Networks, Li Li, Kyong Soo Jun

Civil and Environmental Engineering Faculty Publications and Presentations

Climate change is driving worsening flood events worldwide. In this study, a hybrid approach based on a combination of the optimization of a hydrodynamic model and an error correction modeling that exploit different aspects of the physical system is proposed to improve the forecasting accuracy of flood water levels. In the parameter optimization procedure for the hydrodynamic model, Manning’s roughness coefficients were estimated by considering their spatial distribution and temporal variation in unsteady flow conditions. In the following error correction procedure, the systematic errors of the optimized hydrodynamic model were captured by combining the input variable selection method using partial …

So Many Possibilities: A History Of Noodles & Pasta, Nola Lierheimer

Young Historians Conference

There are many foods historians consider to be an important part of history but many have overlooked a food with rich culinary, cultural, and historical impact: the noodle. Much of the history of this food is complex and different throughout the diverse societies it is a part of. This paper focuses on the unique, influential cultures and traditions of Italy and China, through the lens of noodles and pasta. Additionally, it expands to examine surrounding regions and the culmination of ideas that have led to distinct noodle cultures around the world. From prehistoric times to the present day, this food …

Schism And Suppression: Early Threats To The Esperanto Language, And Resulting Impacts On International Acceptance, Anabel E. Cull

Young Historians Conference

The constructed language of Esperanto, created by Polish linguist Ludovic Lazarus Zamenhof in 1887, was founded with the intention of facilitating global peace and unification. Due to the mission and philosophy of the language, known as Esperantism, Zamenhof’s invention gained popularity among political reformers and communities facing religious discrimination. Aiming to resolve conflict through common language, Esperantism inspired hope amidst the increasingly oppressive social and political climate present in Eastern Europe and Russia during the early 1900’s. This paper explores the contributing factors to Esperanto’s decline, and the impact of internal conflict, political affiliation, and religious significance on efforts to …

Operation Mincemeat: The Impact And Influence Of Wwii’S Most Daring Intelligence Operation, Maya N. Dasilva

Young Historians Conference

In 1943, during the height of the Second World War, the dead body of a man in his early thirties was released from HMS Seraph submarine off the southwest coast of Spain. This corpse carried fabricated letters outlining the Allies’ plan to attack Greece and Sardinia which convinced German forces to defend Greece and move away from the real target, Sicily. This successful, radical, and deceptive operation led by Ewen Montegue to disguise the Allied Invasion of Sicily using false-intelligence tactics forwarded the Allied victory and increased the prevalence of deception in war. This paper explores Operation Mincemeat’s revolutionary nature, …

Qur’An And Constitutions: Sharia In Modern Muslim Democracies, Adrian N. Vasquez

Young Historians Conference

In contemporary society there has seen a gradual shift in the politics of the Muslim world toward more democratic constitutions. This shift can be seen in the aftermath of successful uprisings in Tunisia and Egypt during the Arab Spring as well as isolated cases in other countries. The change echoes those that resulted from the Protestant Reformation’s challenge of the Catholic Church’s authority in 16th century European politics. By looking at the ideas of early constitutionalism in Europe that supported liberalism, it is possible to compare those with the goals of constitutions of new Muslim democracies. Though in many cases …

The Failure Of The Anabaptist Kingdom Of Münster, Sonja Cutts

Young Historians Conference

In February 1534, after rebelling against the authority of their Catholic prince-bishop, the German town of Münster fell under Anabaptist rule. During the next sixteen months, the city’s religious leaders would advocate in favor of Münster becoming a “community of goods,” in which all goods are shared in common. However, their egalitarian dream never fully materialized. This paper examines how the hidden motives of Münster’s political leaders both helped the Anabaptist Kingdom of Münster come into being and prevented the accomplishment of its economic goals.

Poetry To Prose: The Influence Of Herodotus On Written History, Frances B. Currie

Young Historians Conference

In his book, The Histories, Herodotus of Halicarnassus expertly displayed his inquiries into the cultures and conflicts that transformed the Mediterranean world during the Greco-Persian Wars of the fifth century BCE. By writing his narrative in prose, citing his work, and providing cultural reasoning for past events, Herodotus earned himself the nicknames “father of history” and “father of comparative ethnography,” but his inclusion of fables also labeled him the “father of lies.” A historian named Thucydides eventually refined the historical genre to focus on politics without the inclusion of myths, narrowing the discipline of history for another thousand years. …

Angels, Snakes, And Everything In Between: The Fall Of The Byzantine Eunuch, Tess E. Nye

Young Historians Conference

Great figures of fascination, eunuchs have mystified ancients and contemporaries alike through their physical mutilation, sexual ambiguity, and distinct roles within civilizations and societies. Underpinning Byzantine imperial court life, eunuchs possessed great influence in domestic and political spheres for much of the empire’s history. Following the Latin occupation of Constantinople in the 13^th century and extending onwards, however, eunuchs and their influence became increasingly obsolete. This paper explores the broad scope of the Byzantine eunuch’s social and political power and the causes for the eunuch’s decline nearing the collapse of the Byzantine empire.

The Troubles: Root Causes Of Tension In Northern Ireland, Eleanor M. Snyder

Young Historians Conference

Since the first British invasion of Ireland in the 12th century, the native Irish people have been negatively affected by British presence and rule. When the English first set out to conquer Ireland, they did so on the notion and basis of religion, aiming to anglicize the Irish people. The ramifications of creating a class of people, who were second to the British colonizers, have remained persistent throughout history and into present times. The modern culmination of this historical conflict occurred in the 1960’s during the time of the Troubles. However, this Northern Irish conflict was not divided on theological …

Bad Blood: Hemophilia And It’S Detriment To The Russian Imperial Family, Tessia A. Hoffman

Young Historians Conference

Monarchies have often defined the flow of history. Their decisions and ideas affect whole countries, which can lead to a crisis if the ruler is unable to lead effectively. A lack of leadership can bring about war, famine, political instability, and political unrest, all of which occurred in Russia during the 19th and 20th centuries. The poor decision-making of Tsar Nicholas II and Tsarina Alexandra brought about civic unrest that eventually led to their downfall. In addition to the unstable country, the Imperial family was also struggling with the state of their only heir, who had inherited the genetic disorder …

Don't Breathe: An Analysis Of The Factors Of The Victorian River Thames' Restoration, Lucie N. Jain

Young Historians Conference

In the summer of 1858, the River Thames of London was polluted beyond recognition, producing an intolerable smell that reached all corners of the city and inspired a surge of rhetoric commenting on the state of the once adored river. Prior to the nineteenth century, the Thames was the jewel of London and the main source of the city’s prosperity. However, industrialism took a toll on the river’s beauty and health, and the once pristine waterway was quickly spoiled in the space of mere decades. Tracing back to nineteenth century London, this paper aims to explore the causes of the …

Paving The Way: Women In Music At Ferrara, Italy During The Late 1500s, Ella Yarris

Young Historians Conference

During the late Renaissance period, musical advancement and development thrived in the courts of dukes around Italy. However, in Ferrara around 1580, a group of women began to gain unprecedented attention for their court performances and dedication to music. Interestingly, this region was also home to a prolific group of cloistered musicians. This paper explores the impact that the Ferrarese madrigal singers would have on the future of music professions for women of all social classes, as well as the relationship of court music to religious music in a time where life as a whole was becoming more secular.

32nd Annual Young Historians Conference, Portland State University History Department, Portland State University Challenge Program

Young Historians Conference

This is the 2022 Young Historians Conference schedule and abstracts.

A Coordinated Approach To Implementing Low-Dose Ct Lung Cancer Screening In A Rural Community Hospital, Jessica Currier, Deb Howes, Cherie Cox, Margaret Bertoldi, Kent Sharman, Bret Cook, Derek Baden, Paige E. Farris, Wesley Stoller, Multiple Additional Authors

OHSU-PSU School of Public Health Faculty Publications and Presentations

Purpose: The authors describe a rural community hospital’s approach to lung cancer screening using low-dose CT (LDCT) to address the high incidence of lung cancer mortality.

Methods: An implementation project was conducted, documenting planning, education, and restructuring processes to implement a lung cancer screening program using LDCT in a rural community hospital (population 64,917, Rural-Urban Continuum Code 5) located in a region with the highest lung cancer mortality in Oregon. The hospital and community partners organized the implementation project around five recommendations for an efficient and effective lung cancer screening program that accurately identifies high-risk patients, facilitates timely …

Quantification Of Motility In Bacillus Subtilis At Temperatures Up To 84°C Using A Submersible Volumetric Microscope And Automated Tracking, Megan M. Dubay, Nikki Johnston, Mark Wronkiewicz, Jake Lee, Chris Lindensmith, Jay Nadeau

Physics Faculty Publications and Presentations

We describe a system for high-temperature investigations of bacterial motility using a digital holographic microscope completely submerged in heated water. Temperatures above 90°C could be achieved, with a constant 5°C offset between the sample temperature and the surrounding water bath. Using this system, we observed active motility in Bacillus subtilis up to 66°C. As temperatures rose, most cells became immobilized on the surface, but a fraction of cells remained highly motile at distances of >100 μm above the surface. Suspended non-motile cells showed Brownian motion that scaled consistently with temperature and viscosity. A novel open-source automated tracking package was used …

Robust Multi-Period Maximum Coverage Drone Facility Location Problem Considering Coverage Reliability, Darshan Rajesh Chauhan, Avinash Unnikrishnan, Miguel A. Figliozzi, Stephen D. Boyles

Civil and Environmental Engineering Faculty Publications and Presentations

This study proposes a multi-period facility location formulation to maximize coverage while meeting a coverage reliability constraint. The coverage reliability constraint is a chance constraint limiting the probability of failure to maintain the desired service standard, commonly followed by emergency medical services and fire departments. Further, uncertainties in the failure probabilities are incorporated by utilizing robust optimization using polyhedral uncertainty sets, which results in a compact mixed-integer linear program. A case study in the Portland, OR metropolitan area is analyzed for employing unmanned aerial vehicles (UAVs) or drones to deliver defibrillators in the region to combat out-of-hospital cardiac arrests. In …