Digital Commons Network^™

Streaming Video In Higher Education, Jill Emery

Library Faculty and Staff Publications and Presentations

Overview of streaming media use at an institution of higher learning in the United States. Shows the various ways streaming media is selected and utilized at a given institution.

Countywide Bluetooth System: Use Cases & Performance Measures, Shaun Quayle

PSU Transportation Seminars

Washington County has 124 permanent roadside Bluetooth readers, which passively and in an anonymous fashion collect travel time, speed, and origin-destination information across the major arterials in the urban County. This presentation gives an overview of the program purpose, history, some interesting use cases, and the formation of comparative performance metrics to gauge the magnitude and duration of congestion across the County. These metrics and information will help planners improve travel demand models, consultants improve traffic analyses, operations staff prioritize timing, detection, and maintenance functions, agencies inform traveler information data, and leaders better communicate the story of traffic demand, delay, …

Ion Transport Across Biological Membranes By Carborane-Capped Gold Nanoparticles, Marcin P. Grzelczak, Stephen P. Danks, Robert C. Klipp, Domagoj Belic, Adnana Zaulet, Casper Kunstmann-Olsen, Dan F. Bradley, Tatsuya Tsukuda, Clara ViñAs, Francesc Teixidor, Jonathan J. Abramson, Mathias Brust

Physics Faculty Publications and Presentations

Carborane-capped gold nanoparticles (Au/carborane NPs, 2–3 nm) can act as artificial ion transporters across biological membranes. The particles themselves are large hydrophobic anions that have the ability to disperse in aqueous media and to partition over both sides of a phospholipid bilayer membrane. Their presence therefore causes a membrane potential that is determined by the relative concentrations of particles on each side of the membrane according to the Nernst equation. The particles tend to adsorb to both sides of the membrane and can flip across if changes in membrane potential require their repartitioning. Such changes can be made either with …

On The Temporal Effects Of Mobile Blockers In Urban Millimeter-Wave Cellular Scenarios, Margarita Gapeyenko, Mikhail Gerasimenko, Andrey Samuylov, Dmitri Moltchanov, Sarabjot Singh, Mustafa Riza Akdeniz, Ehsan Aryafar, Nageen Himayat, Sergey Andreev, Yevgeni Koucheryavy

Computer Science Faculty Publications and Presentations

Millimeter-wave (mmWave) propagation is known to be severely affected by the blockage of the line-of-sight (LoS) path. In contrast to microwave systems, at shorter mmWave wavelengths such blockage can be caused by human bodies, where their mobility within environment makes wireless channel alternate between the blocked and non-blocked LoS states. Following the recent 3GPP requirements on modeling the dynamic blockage as well as the temporal consistency of the channel at mmWave frequencies, in this paper a new model for predicting the state of a user in the presence of mobile blockers for representative 3GPP scenarios is developed: urban micro cell …

Teaching Undergraduate Students To Visualize And Communicate Public Health Data With Infographics, Justin D. Shanks, Betty Izumi, Christina J. Sun, Allea Martin, Carmen Byker Shanks

OHSU-PSU School of Public Health Faculty Publications and Presentations

The purpose of this study was to explore the degree to which an infographic assignment facilitated student learning around health science issues, as well as the ways in which the assignment was an effective teaching tool. The objectives of the assignment were to (1) understand the purposes of and potential uses for infographics, (2) cultivate creative visual communication skills, and (3) disseminate a complex health topic to diverse audiences. The infographic assignment was developed at Montana State University and piloted at Portland State University. Students were assigned to small groups of three or four to create an infographic focused on …

Implementing The Green Dot Bystander Intervention Program To Promote Respectful Workplaces In The Construction Trades In Oregon: Preliminary Report On Wave One, Maura Kelly, Lindsey Wilkinson

Sociology Faculty Publications and Presentations

Oregon, like all states across the U.S., has faced challenges in recruiting and retaining a diverse construction workforce. In 2011, the Oregon Bureau of Labor and Industries and the Oregon Department of Transportation partnered to fund the BOLI/ODOT Highway Construction Workforce Development Program, which is intended to improve the stability and diversity of the highway construction workforce by promoting recruitment and retention of apprentices (see Wilkinson and Kelly 2015). The program has provided funding for 1) Pre-apprenticeship programs (to improve recruitment and retention of apprentices); Supportive services (to improve retention of apprentices); and 3) Respectful workplaces (to improve retention …

Webinar: Racial Bias In Driver Yielding Behavior At Crosswalks, Kimberly Barsamian Kahn

TREC Webinar Series

This webinar discusses research exploring how social identity factors (race and gender) influence drivers’ behavior in interactions with pedestrians at crosswalks. One dangerous potential point of conflict for pedestrians within the transportation system is interactions with drivers at crosswalks (NHTSA, 2009), and racial minorities are disproportionately represented in pedestrian fatalities (CDC, 2013). This project examines whether racial discrimination occurs at crosswalks, which may lead to disparate crossing experiences and disproportionate safety outcomes.

Our initial research on this topic revealed predicted racial bias in drivers’ yielding behavior at crosswalks: Black male pedestrians were passed by twice as many cars as, and …

A Bibliography For Reimagining Borders, Molly Sherman

A Bibliography for Reimagining Borders

A Bibliography for Reimagining Borders is a collection of resources recommended by students, faculty, and staff at St. Edward’s University. The list is inspired by the University’s 2017–2018 Common Theme program on immigrant voices and seeks to expand the conversation around current social and political concerns about immigration issues on campus and beyond during this critical time in our country. The recommendations are derived from diverse contexts and subject matters that expand, complicate, or make us think differently about what a border is, what it does, or who it affects.

Contributors: Molly Sherman, Quentin Arch, Alex Barron, Harris Bauman, Julie …

La Reproducción De Negritud In Murales Y Estatus En Esmeraldas, Ecuador, Ethan Johnson

Black Studies Faculty Publications and Presentations

En Ecuador y en otras partes de América Latina el racismo Anti-negro se ha estructurado a través del discurso dominante de la identidad nacional, el mestizaje o la mezcla racial y cultural. El discurso dominante de la identidad nacional en América Latina resultó de los esfuerzos de los grupos de élite para desarrollar ideologías en respuesta a la crisis percibida en sus naciones europeas sobre todo no blancas. Para evitar el estigma asociado a las personas negras e indígenas estas elites desarrollaron el concepto de mestizaje, es decir, mezcla racial y cultural. Sin embargo, estas élites también mantuvieron las jerarquías …

Preliminary Findings Of A Technology-Delivered Sexual Health Promotion Program For Black Men Who Have Sex With Men: Quasi-Experimental Outcome Study, Charles H. Klein, Tamara Kuhn, Danielle Huxley, Jamie Kennel, Elizabeth Withers, Carmela Lomonaco

Anthropology Faculty Publications and Presentations

Background: Human immunodeficiency virus (HIV) disproportionately affects black men who have sex with men (MSM), yet there are few evidence-based interventions specifically designed for black MSM communities. In response, the authors created Real Talk, a technology-delivered, sexual health program for black MSM.

Objective: The objective of our study was to determine whether Real Talk positively affected risk reduction intentions, disclosure practices, condom use, and overall risk reduction sexual practices.

Methods: The study used a quasi-experimental, 2-arm methodology. During the first session, participants completed a baseline assessment, used Real Talk (intervention condition) or reviewed 4 sexual health brochures (the standard of …

Herencia Y Memoria Afro En Las Américas. Una Mirada A La Pedagogía Desde Los Saberes Afrodescendientes, Ethan Johnson

Black Studies Faculty Publications and Presentations

Mis pensamientos sobre los aportes de la gente de ascendencia africana en América Latina empiezan de mis ideas del mismo grupo de América del Norte. Primero, quiero decir que no soy un investigador sobre la influencia de la cultura africana en la Américas. No es que no tengo interés en África, solo es que siempre me haya sentido muy lejos de África. Para mi era el racismo, interpersonal e institucional, que era lo más central en mi vida creciendo en los Estados Unidos. Espero que ustedes no lo tomen esto como un ejemplo de lo tanto que estoy colonializado, pero …

Removing Dams, Constructing Science: Coproduction Of Undammed Riverscapes By Politics, Finance, Environment, Society And Technology, Zbigniew J. Grabowski, Ashlie Denton, Mary Ann Rozance, Marissa Matsler, Sarah Kidd

Geography Faculty Publications and Presentations

Dam removal in the United States has continued to increase in pace and scope, transitioning from a dam-safety engineering practice to an integral component of many large-scale river restoration programmes. At the same time, knowledge around dam removals remains fragmented by disciplinary silos and a lack of knowledge transfer between communities of practice around dam removal and academia. Here we argue that dam removal science, as a study of large restoration-oriented infrastructure interventions, requires the construction of an interdisciplinary framework to integrate knowledge relevant to decision-making on dam removal. Drawing upon infrastructure studies, relational theories of coproduction of knowledge and …

Investigating Statistics Teachers' Knowledge Of Probability In The Context Of Hypothesis Testing, Jason Mark Asis Dolor

Dissertations and Theses

In the last three decades, there has been a significant growth in the number of undergraduate students taking introductory statistics. As a result, there is a need by universities and community colleges to find well-qualified instructors and graduate teaching assistants to teach the growing number of statistics courses. Unfortunately, research has shown that even teachers of introductory statistics struggle with concepts they are employed to teach. The data presented in this research sheds light on the statistical knowledge of graduate teaching assistants (GTAs) and community college instructors (CCIs) in the realm of probability by analyzing their work on surveys and …

Evaluating The Performance Of Contech's Stormfilter With Zpg Media Under The City Of Portland's 2016 Stormwater Management Manual Requirements For Manufactured Stormwater Treatment Technologies, Mawj T.H. Khammas

Civil and Environmental Engineering Master's Project Reports

Stormwater runoff is the water generated from excess rainfall or snowmelt that flows over impervious surfaces such as paved roads, parking lots, and on roofs, it often carries a variety of pollutants that adversely affect water quality in that region. Portland is a well-developed city; the majority of the streets are paved and impervious and will consequently generate a tremendous amount of stormwater this creates the necessity for management to help preserve and mimic natural hydrologic cycle through improving water quality. The StormFilter® with ZPG media, manufactured by CONTECH, is a manufactured stormwater treatment technology(MSTT) in which zeolite, perlite, and …

Indigenous Nations Studies Newsletter, Fall 2017, Portland State University. Indigenous Nations Studies

Indigenous Nations Studies Newsletter

Table of Contents:
-- Fall Welcoming
--Scholar in Residence
--Upcoming Events
-- Innas: Proposed Major

Assessment Of Minimum Viable Product Techniques: A Literature Review, Mohammadsaleh Saadatmand

Engineering and Technology Management Student Projects

Although the minimum viable product (MVP) concept provides a means to test ideas and hypothesis at early stages, it does not indicate that it is easy to build. MVP tests whether your idea solves a real problem that customers are willing to pay for. In order to reach the stage of building a product that people want to use and pay for, we need to make sure product passes certain tests. In turn, MVP techniques/methods are designed not only to test technical questions about the product, but also to assess the viability of business model hypothesis. Once the hypothesis that …

Communication Beginnings: An Introductory Listening And Speaking Text For English Language Learners, Della Jean Abrahams

PDXOpen: Open Educational Resources

This textbook is designed for advanced beginning-intermediate English language learners in an academic English program. It is composed of 7 chapters, each of which covers specific speaking and listening learning objectives and includes dialogues, interviews, discussions and conversation activities. Each chapter also focuses on 10 target words from the New General Service List of English vocabulary and reviews basic grammar points. The textbook includes an audio component that consists of recorded conversations of native and non-native English speakers, as well as links to additional listening resources on the web.

Audio files are also available online via PSU Mediaspace.

Please see …

Portland General Electric’S Adoption Of Distributed Energy Resources, Lennae Misiewicz, Jason Carver, Abdalilah Owaishiz, Stephen Macdonald

Engineering and Technology Management Student Projects

For over 100 years, people have been searching for ways to make the electric grid more efficient, resilient, and cost effective. Although there have been many improvements over the years, in the past two decades from; increased concern on climate change, innovation in advance technologies, and political will mounting to become energy independent, there has been a shift in how our grid stakeholders talk future grid improvements for the next 100 years. One of the causes behind this shift is due to greater saturation of Distributed Energy Resources (DERs) on the grid. This disruptive technology creates many challenges to legacy …

A Comparative Assessment Of Projected Meteorological And Hydrological Droughts: Elucidating The Role Of Temperature, Ali Ahmadalipour, Hamid Moradkhani, Mehmet C. Demirel

Civil and Environmental Engineering Faculty Publications and Presentations

The changing climate and the associated future increases in temperature are expected to have impacts on drought characteristics and hydrologic cycle. This paper investigates the projected changes in spatiotemporal characteristics of droughts and their future attributes over the Willamette River Basin (WRB) in the Pacific Northwest U.S. The analysis is performed using two subsets of downscaled CMIP5 global climate models (GCMs) each consisting of 10 models from two future scenarios (RCP4.5 and RCP8.5) for 30 years of historical period (1970–1999) and 90 years of future projections (2010–2099). Hydrologic modeling is conducted using the Precipitation Runoff Modeling System (PRMS) as a …

Elution Tailing Of Nonaqueous Phase Liquids In Porous Media, Louisa Orr

Civil and Environmental Engineering Undergraduate Honors Theses

A variety of porous media were studied to characterize contaminant dispersion over time. This work looked at a compilation of previously published studies to investigate the dependence of long term elution tailing trends on particular soil characteristics. Recession curve analysis was conducted on existing dispersed contaminant literature, to yield the low-concentration recession constant (K). The R² values correlating the soil properties to contaminant concentration ranged from 0.12494 to 0.95429. The low-concentration recession constant (K) values ranged from 0.9745407 0.9999988. The relationship between K and the soil properties porosity, organic carbon, and fines fraction is increasing. Bulk density and the …

Solarworld Amidst Uncertainty, Palak Goel, Roland Richards, Asawari Kulkarni, Nagarjun Hassan Ranganath, Majed Alshamlani

Engineering and Technology Management Student Projects

Solar energy is turning out to be a widely accepted renewable energy alternative. It is considered as the cleanest and abundantly available source of energy. Adoption of this source for energy generation has been made possible by technological advancements. The United States has realized the potential of the solar energy but hasn’t been able to exploit the technology until recently. Since 2009, the US has seen a significant growth in consumption of solar energy. Efficiency of solar cells, tax credits, state policies, increasing public awareness on environmental pollution have resulted in increasing use of solar energy. Although a key reason …

Virtual Teams : Boon Or Bane?, Krishna Priya Muraleedharan, Satvik Vishnubhatta, Smitha Mandhani, Unmesh Deodhar

Engineering and Technology Management Student Projects

A virtual team is a group of people who work together across time, space and organizational boundaries.Virtual teams came into existence as the work expertise is distributed globally and it provides more flexibility to the employees. The members of a virtual team have varied skills and they work towards achieving a common goal.

To explain the challenges faced by virtual teams we have studied research papers and case study for whom the only economically and practically means of communication was asynchronous and synchronous computer-mediated communication. This research paper highlights the challenges of making and keeping trust in a virtual team …

Reb Strategic Plan, Mohamed Sheikh, Catalina Reyes, Oneshin Aiken, Marthed Mohammed, Bhawinee Banchongraksa

Engineering and Technology Management Student Projects

Slides from a presentation outlining the strategic plan for a new skin care enterprise, including strategic planning, customer analysis,marketing plan and forecasting.

Optimizing Distributed Energy Resources On A Distribution Feeder, Bill Henry, Stephen Macdonald, Nicole Wehner, Gabe Mcbride, Tyler Groth

Engineering and Technology Management Student Projects

The purpose of this study is to optimize a set of distributed energy resources (DERs) on an electric utility distribution level feeder. A DER is a decentralized resource, usually located at end-use electric utility customer sites, that stores or generates electricity – such as batteries and rooftop photovoltaic solar, or in the case of demand response, in which the utility has the ability to manage electricity consumption to the benefit of distribution grid operation. The aggregation and optimization of a set of DERs of disparate operating characteristics, over a period of three years is performed and the methods employed explained. …

Spacex Satellite Constellations, Anju Babu, Kevin Camp, Wray Price

Engineering and Technology Management Student Projects

As of June 2017, only 51% of people worldwide have access to the internet. The goal of this project is to deploy the world's first global satellite internet service capable of servicing both internet backbone infrastructure and end consumers across the globe.

Founded in 2002 SpaceX has revolutionized the space launch industry, with the end goal of making Humans a multi planetary species. This effort requires significant funding resources, which has led to the pursuit of business opportunities beyond the launch market where SpaceX currently does the majority of its business. By providing global internet coverage, SpaceX stands to make …

Exclusive Summary: Diabetes Happy Meal, Bhawinee Banchongraksa

Engineering and Technology Management Student Projects

Brief summary of application software designed to assist diabetics to make healthy dietary choices, and to offer means to buy ingredients online.

Flipscreen.Ai, Christopher Davis

Engineering and Technology Management Student Projects

Slides from a presentation outlining a new software product that pushes real time, personalized fantasy data directly to viewers' televisions, allowing them to better play skill based fantasy sports games.

Racial Bias In Drivers' Yielding Behavior At Crosswalks: Understanding The Effect, Kimberly Barsamian Kahn, Jean M. Mcmahon, Tara Goddard, Arlie Adkins

TREC Final Reports

This project explores social identity factors (race and gender) that influence drivers’ behavior in interactions with pedestrians at crosswalks. One dangerous potential point of conflict for pedestrians within the transportation system is interactions with drivers at crosswalks (NHTSA, 2009). In 2010, there was one crash-related pedestrian death every two hours and an injury every eight minutes, and racial minorities are disproportionately represented in these pedestrian fatalities (CDC, 2013). In light of this disparity, this project examines whether racial discrimination occurs at crosswalks, which may lead to disparate crossing experiences and disproportionate safety outcomes. Racial minorities experience racial discrimination across various …

Active And Public Transportation Connectivity Between North Temple Tod And Jordan Park River Trail, Ivis Garcia Zambrana, Christie Oostema

TREC Final Reports

The project seeks to capitalize on existing community assets—several TOD stations and a regional bike and pedestrian trail system—by studying how these can be linked. The overarching goal of this project is to increase scholarship on networking safe routes that can encourage public and active transportation choices and thus, encourage a healthier lifestyle and advance sustainability. By expanding pedestrian, bicycle and transit connections to green space and offering the most potential for TOD, this proposal clearly demonstrates the greatest priorities of NITC. Moreover, nationwide, communities like Salt Lake’s West Side are in greater need of sustainable transportation choices that foster …

Centering Diversity & Inclusion Resources And Dialogues In Self-Reflection Practices, Oscar Fernandez

University Studies Faculty Publications and Presentations

In this presentation, attendance members learn how cross-cultural communication is one way to self-reflect on diversity and inclusion matters