Digital Commons Network^™

Network Structure, Network Flows And The Phenomenon Of Influence In Online Social Networks: An Exploratory Empirical Study Of Twitter Conversations About Youtube Product Categories, Nitin Venkat Mayande

Dissertations and Theses

Traditional marketing models are swiftly being upended by the advent of online social networks. Yet, practicing firms that are engaging with online social networks neither have a reliable theory nor sufficient practical experience to make sense of the phenomenon. Extant theory in particular is based on observations of the real world, and may thus not apply to online social networks. Practicing firms may consequently be misallocating a large amount of resources, simply because they do not know how the online social networks with which they interact are organized.

The purpose of this dissertation is to investigate how online social networks …

The Influence Of Surface Chemistry On The Photoelectrochemical Properties Of Fes(2) Photoanodes, Qi Tong

Dissertations and Theses

The recurring theme of this dissertation is the correlation between FeS₂ surface chemistry and key electrical and electronic properties of FeS₂. Efforts have been made to identify and characterize the FeS₂ surface, investigate the photoelectrochemistry of FeS₂ photoanodes under anhydrous and anoxic conditions, and investigate the influence of deliberate surface chemistry on FeS₂ photoelectrochemistry.

Infrared reflection-absorption spectroscopy (IRRAS) was used to investigate a thin adsorbate layer on pyrite. The results showed that the combination of angle-dependent studies and computational efforts are a powerful tool for characterizing the pyrite surface.

The photoelectrochemistry of FeS_{2 …}

Scalable Equivalence Checking For Behavioral Synthesis, Zhenkun Yang

Dissertations and Theses

Behavioral synthesis is the process of compiling an Electronic System Level (ESL) design to a register-transfer level (RTL) implementation. ESL specifications define the design functionality at a high level of abstraction (e.g., with C/C++ or SystemC), and thus provide a promising approach to address the exacting demands to develop feature-rich, optimized, and complex hardware systems within aggressive time-to-market schedules. Behavioral synthesis entails application of complex and error-prone transformations during the compilation process. Therefore, the adoption of behavioral synthesis highly depends on our ability to ensure that the synthesized RTL conforms to the ESL description. This dissertation provides an end-to-end scalable …

Implementation Plan. Reducing Student Costs: A Report On Textbooks And Course Materials, Reducing Student Costs Implementation Plan

Reducing Student Costs Initiative

This is the implementation plan for the Reducing Student Costs: A Report on Textbooks and Course Materials. The plan is divided into two sections: 0-12 completion goals and 12-36 month goals.

An Examination Of Factors That Catalyze Lgbtq Movements In Middle Eastern And North African Authoritarian Regimes, Michael Anthony Figueredo

Dissertations and Theses

Citizens' increased access to the internet is transforming political landscapes across the globe. The implications for civil society, culture, religion, governmental legitimacy and accountability are vast. In nations where one does not typically expect "modern" or egalitarian ideals to be prevalent among highly religious and conservative populations, those with motivations to unite around socially and culturally taboo causes are no longer forced to silently acquiesce and accept the status quo. The internet has proven to be an invaluable tool for those aiming to engage in social activism, as it allows citizens in highly oppressive authoritarian regimes to covertly mobilize and …

Promising Practices For Long-Term Community Engagement, Meg Merrick, Andrée Tremoulet, Tina Dippert

Institute of Metropolitan Studies Publications

Washington County has initiated a planning process to rethink the structure and support system for its ongoing, long-term community participation program. The impetus for this planning process began with a fall 2014 announcement by the service provider that had supported the county’s Citizen Participation Organizations (CPOs) and the Committee for Citizen Involvement (CCI) for several decades, Oregon State University Extension, that it would no longer continue this role effective fall 2015. The planning process has since evolved into an opportunity to take a thorough look at the program and plan a system of engagement for the 21st century.

Washington County …

Historical And Existing Vascular And Bryophyte Flora, Former Blue Heron Paper Mill, Willamette Falls, Oregon City, Oregon, John A. Christy, Philip Gaddis

Institute for Natural Resources Publications

Willamette Falls has long been a focus of botanical interest, but industrial development at the site has limited public access for over a century. The closure of the Blue Heron paper mill on the south bank of the river, and proposed redevelopment of the site, has given planners an opportunity to revisit this part of the falls and identify its current flora. As part of the preconstruction planning process for public access to the falls, Metro contracted John Christy to document the historical and existing vascular flora on the site, and Philip Gaddis joined us to document the bryophyte flora. …

Evaluation Of The Kindergarten Readiness Partnership & Innovation Grants, Beth L. Green, Lindsey Brianna Patterson, Mackenzie Morris, Lindsey Anne Cochran, Callie H. Lambarth

Early Childhood

In July 2014, Oregon’s Early Learning Division provided first-time funding for sixteen communities across the state to implement Kindergarten Readiness Partnership & Innovation (KRPI) projects. The KRPI projects share the common goal of improving children’s school readiness and, ultimately, improving school success and reducing the achievement gap. To achieve these goals, grantees were given considerable local flexibility to implement innovative approaches in one or more of the following areas:

1. Supporting kindergarten readiness skills and smooth transitions to kindergarten;

2. Increasing family engagement in children’s learning and connecting families and schools;

3. Providing professional development to early learning and/or elementary …

Raps Sheet, Summer 2015, Retirement Association Of Portland State

RAPS Sheet: Monthly Newsletter

No abstract provided.

Disrupting The City: Using Urban Screens To Remediate Public Space, Jean Dubois, Dave Colangelo, Claude Fortin

School of Film Faculty Publications and Presentations

For over a decade, human-computer interaction (HCI) research placed a great deal of emphasis on studying interaction, engagement, and appropriative practices in online technology-mediated social environments. Moving forward, however, we see computing systems increasingly designed to support digitally-augmented face-to-face interactions in public settings. As far back as the nineteen seventies, new media artists anticipated this interactive potential of digital public displays to foster new forms of situated interactions in urban space, quite distinct from mobile computing in that they altogether exclude online connections or exchanges. Drawing on examples of practice, this paper discusses and show-cases some of the key creative …

Pseudocapacitors For Energy Storage, Anuradha Venkataraman

Dissertations and Theses

Fluctuation in the demand for electrical power and the intermittent nature of the supply of energy from renewable sources like solar and wind have made the need for energy storage a dire necessity. Current storage technologies like batteries and supercapacitors fall short either in terms of power output or in their ability to store sufficient energy. Pseudocapacitors combine features of both and offer an alternative to stabilize the power supply. They possess high rates of charge and discharge and are capable of storing much more energy in comparison to a supercapacitor. In the quest for solutions that are economical and …

Steps Towards Deciphering The Post-Polyketide Synthase Tailoring Steps In The Phoslactomycin Biosynthesis Pathway, Patience Marimo

Dissertations and Theses

Phoslactomycins (PLMs) are a group of natural products belonging to a polyketides class. These polyketides are synthesized by sequential reaction catalyzed by a collection of enzymes activities called polyketide synthases. A polyketide is a large class of diverse compounds that are characterized by more than two carbonyl groups connected by single intervening carbon atoms. In other words, a polyketide is a polymer whose monomer is a ketide. The PLMs are also known as phosphazomycins or phospholines. These compounds were isolated based on antifungal and antitumor activities. This array of promising biological activities has stimulated research into the field of PLMs …

Multivalent Rechargeable Batteries, Sudhaprasanna Kumar Padigi

Dissertations and Theses

Li⁺ ion batteries have been the mainstay of high energy storage devices that have revolutionized the operating life time of consumer electronic devices for the past two decades. However, there is a steady increase in demand for energy storage devices with the ability to store more energy and deliver them at high power at low cost, without comprising safety and lifetime.

Li-ion batteries have had significant challenges in increasing the amount of stored energy without affecting the overall lifetime and the ability to deliver stored energy. In order to store and deliver more energy, more lithium ions need to …

A Critical Race Analysis Of Travel For Transformation: Pedagogy For The Privileged Or Vehicle For Socio-Cultural Transformation?, James Arthur Gambrell

Dissertations and Theses

Transformative learning theory (TLT) describes the process of reframing discriminative, untenable worldviews with a more inclusive, permeable, and reflective epistemology. Although TLT has been around for more than 50 years, few studies empirically engage critical theoretical frameworks to move beyond personal learning to identify the impacts of transformation on society. Through a critical race theory (CRT) framework, this study analyzed how the participants' socio-cultural identities (race, class, gender, sexuality, and heritage language) impacted the transformative learning of eight study-abroad students from a medium-sized, rural Midwestern university. Focusing on the extent to which the participants experienced the elements of transformative …

An Evaluation Of The Neighborhood Traffic Management Program Of Centennial, Colorado, Rolando Gabriel Melgoza

Civil and Environmental Engineering Master's Project Reports

Residential neighborhoods throughout the United States seek to maintain a quality of life where residents can live free of traffic factors adversely affecting their safety. Many communities have adopted a Neighborhood Traffic Management Program (NTMP) to address concerns over cut-through traffic, speeding, and safety. The City of Centennial, Colorado, incorporated in 2001, is a young city and has its own NTMP. Four traffic mitigation projects have been implemented. The objective of this research is to conduct a before and after comparison study of each Centennial NTMP project, to review the NTMP policies of American cities with similar suburban characteristics to …

The Landscape: Equity, Elizabeth Morehead

Metroscape

Elizabeth Morehead uses data from Greater Portland Pulse to point to educational and economic disparities as well as the disproportionate involvement of racial and ethnic minorities in the region's criminal justice system.

Book Review Of, Black Woman Reformer: Ida B. Wells, Lynching, And Transatlantic Activism, Patricia A. Schechter

History Faculty Publications and Presentations

Reviews the book by Sarah L. Silkey. "Black Woman Reformer: Ida B. Wells, Lynching, and Transatlantic Activism". Athens: University of Georgia Press, 2015.

A Decade Of Critical Information Literacy: A Review Of The Literature, Eamon Tewell

Communications in Information Literacy

As information literacy continues in its centrality to many academic libraries' missions, a line of inquiry has developed in response to ACRL's charge to develop information literate citizens. The literature of critical information literacy questions widely held assumptions about information literacy and considers in what ways librarians may encourage students to engage with and act upon information's complex and inherently political nature. This review explores the research into critical information literacy, including critical pedagogy and critiques of information literacy, in order to provide an entry point for this emerging and challenging approach to information literacy.

Education Theory And Pedagogy For Practical Library Instruction: How To Learn What We Really Need To Know, Molly Montgomery

Communications in Information Literacy

The majority of librarians who have taken on instruction responsibilities have had little to no formal training in educational theories or pedagogical practices. We do the best we can without a foundation for our teaching. This Perspectives column looks at how much theory we really need to know, and how can we gain this knowledge in order to become effective and engaging instructors.

Connecting Inspiration With Information: Studio Art Students And Information Literacy Instruction, Katie Greer

Communications in Information Literacy

This article discusses the partnership between the library and the studio art faculty at [Institution name], that led to the integration of information literacy instruction into the studio art curriculum. The author outlines the importance of information literacy to artistic practice and student success, and discusses the program of instruction and learning outcomes. Early assessment of student needs and the program's effectiveness, using both citation analysis and anecdotal feedback, reveals that the program has contributed to the maturation of student research and inquiry skills, and positively affected the relationship between the department and the library, and provides preliminary conclusions about …

Teaching And Learning Information Synthesis: An Intervention And Rubric Based Assessment, Kacy Lundstrom, Anne R. Diekema, Heather Leary, Sheri Haderlie, Wendy Holliday

Communications in Information Literacy

The purpose of this research was to determine how information synthesis skills can be taught effectively, and to discover how the level of synthesis in student writing can be effectively measured. The intervention was an information synthesis lesson that broke down the synthesis process into sequenced tasks. Researchers created a rubric which they used to assess a student's level of information synthesis demonstrated in their final research essays. A form of counting analysis was also created to see if other methods could help in measuring synthesis. Findings from the rubric analysis revealed that students appear to benefit from the synthesis …

Therapy And The Nontraditional Transgender Narrative, Dylan Ellingson Waller

Dissertations and Theses

The history of transgender identity is inextricable from the mental health industry. Since the late 1970's transgender people have required permission from mental health professionals to make medical modifications to their sex characteristics. During the time of this research, it was difficult for transgender individuals to receive the hormones or surgeries they desire without first being diagnosed with Gender Identity Disorder (GID).

This study applies labeling theory to the label of GID. Labeling theory poses that if an individual is labeled with a mental illness, they will either reject or accept the label. Acceptance of the mentally ill label will …

Portland Spectrum, June 2015, Portland State University. Student Publications Board

Portland Spectrum

Editor: Corinne Hutfilz

Articles in this issue include: 25 Years of ADA; A Superhuman Future with Nanotechnology; Accountability Now; Literacy in the Information Age; The Right to Preach on College Campus; Got Gas; Higher One at High Risk; Two Sides of the Same Coin: Disparity Between American Aid Organizations; Up, Up, and Away: Superhero Movies are Just Getting Started; and ASPSU Election Recap

Characterization Of The Role That Alternative Ribonucleotide Reductases Play In Restoring Replication In The Presence Of Hydroxyurea In Escherichia Coli, Michael Sadek

PSU McNair Scholars Online Journal

DNA replication is essential for cells to grow and divide. Ribonucleotide reductase is an essential enzyme that is responsible for the formation of deoxyribonucleotides that are used in DNA synthesis during replication. Hydroxyurea is a chemotherapeutic agent that is thought to work by specifically inhibiting the ribonuceotide reductase to prevent replication. However, recent studies in E. coli have shown that following an initial period of inhibition, DNA synthesis then recovers in the presence of hydroxyurea, suggesting that the mode of death and cellular response to hydroxyurea is more complex than originally proposed. The E.coli genome encodes three ribonucleotide reductases that …

Co-Curriculum And Esl Student Success: A Case Study In An Intensive English Language Program, James D. Mitchell

PSU McNair Scholars Online Journal

This project examines the relationship between co-curricular activities and ESL student success in an intensive English language program. Extracurricular and co-curricular activities have been linked to the improvement of several factors, such as self-esteem, retention, and grade point average (Astin, 1984, 1999; Bergen-Cico & Viscomi, 2013). Research in second language acquisition has suggested that meaningful interaction between individuals in the target language (L2) will increase a student’s proficiency. Therefore, a ESL student’s further involvement in an intensive English program could have a major impact on not only their academic success (operationalized in this study by the amount of classes that …

The Media’S Presentation Of The Second Chance Act: Funding For Reentry Following Prison, Ailene Joyce Farkac

PSU McNair Scholars Online Journal

The US prison system has multiplied by four since 1980; each year about 730,000 people enter state and federal prisons and 700,000 people exit. As a result of this expansion, there is a massive increase of formerly incarcerated people reentering local communities every year. Budget cuts in prison programs and in local government’s social services are causing these individuals to be less educated and less prepared for reintegration; communities are also ill prepared to absorb them. The Second Chance Act was signed into law by President Bush on April 9, 2008. It authorized a pool of about $393m (renewed in …

Front Matter Volume 9, 2015, Mcnair Scholars Program

PSU McNair Scholars Online Journal

Front matter includes program background, Table of Contents, and a complete listing of 2015 Portland State McNair Scholars.

Nationalism In United States Foreign Policy In The Post 9/11 Era, Chris W. Baum

Dissertations and Theses

One year after the terror attacks of September 11, 2001, the administration of President George W. Bush introduced a revolutionary foreign policy strategy--the Bush Doctrine. Proponents of this strategy advocated the use of American 'hard power' as a tool to promote freedom and democracy, beginning with the invasions of Afghanistan and Iraq. Opponents of the doctrine saw it as dangerously nationalistic, with the potential to entangle the United States in a myriad of protracted international conflicts. This thesis will identify aspects of nationalism within post-9/11 American foreign policy and illuminate the incompatibility of nationalism and the fundamental tenets of conflict …

Empowering All Who Teach: A Portrait Of Two Non-Native English Speaking Teachers In A Globalized 21st Century, Rosa Dene David

Dissertations and Theses

One of most prevalent issues surrounding English education internationally is the differentiation between Native English-Speaking Teachers (NESTs) and Non-native English-Speaking Teachers (NNESTs). What is sometimes termed the "Native speaker fallacy" is the notion that in order to be a proficient teacher of the English language one must either be a native speaker or possess native like fluency (Phillipson, 1992). This position is furthered by Hollidays Native Speakerism (Holliday, 2006) which suggests that within the field of English Language Teaching (ELT) there is an assumption that NESTs are better equipped to teach English language learners due to language proficiency and Western …

Investigations Of Larval Pacific Lamprey Entosphenus Tridentatus Osmotic Stress Tolerance And Occurrence In A Tidally-Influenced Estuarine Stream, Gregory Shell Silver

Dissertations and Theses

Pacific lamprey is a culturally valuable species to indigenous people, and has significant ecological importance in freshwater and marine ecosystems. Over the past several decades, constrictions in range and reductions in Pacific lamprey abundance have been observed in Western North America, and may be indicators of range-wide declines. In the face of declining populations, the U.S. Fish and Wildlife Service has partnered with tribal, state, federal, and local entities to implement a regional Pacific lamprey conservation agreement aimed at reducing threats to Pacific lamprey and improving their habitats and population status. Research needs identified in the conservation agreement include assessing …