Digital Commons Network^™

Algeria In Perspective: Changing The Understanding Of The Modern Algerian State, Austin Averett

University Honors Theses

Much of the existing literature on the modern state of Algeria reinforces rivalry-based understandings of the politico-linguistic infrastructure that overemphasize the presence of a dichotomy (French v. Arabic) in the linguistic make up of the state. Many studies rely on this construction of an Algerian language dichotomy to predict the future of the state, while; in fact, more attention should be paid to the multilingual, multicultural, and multinational reality of the larger demographic. Algeria’s history of language rationalization has laid the foundation for unique institutional reflections of state power dynamics within a multilingual environment. Discussions of Algeria’s historical background, identity …

A Case Study In Teacher Education: The University Of Canterbury, Nelson Campus, Nelson, New Zealand, Jan Byres, Nicole Day, Jim Parsons

Northwest Journal of Teacher Education

Teaching is far from straightforward. People argue over its classification - is it science or art? Educators and experts often palaver with certitude, but no definitive answer exists. This case study explores the complexity of teacher education programs in terms of epistemology.

The Wild Side : Get Fierce, Get Fit, Get Fun, Mason Goché

University Honors Theses

Have you ever thought about how a wild animal chooses food? How do they pick food that has the exact vitamin or micronutrient that the body needs?

Every wretched food craving that has left you over your ideal weight is to your benefit. Those cravings have kept you alive. They only show that your system is strong; your will to survive is immense. Every extra ounce that you carry signifies your fierce system overtaking you with the will to survive. Your brain taking over your body to get the nutrients it needs is like a horse breaking through barbed wire. …

Consumer Satisfaction With Aging & Disability Resource Connection Of Oregon: Round 4, Diana White, Sheryl Dejoy Elliott

Institute on Aging Publications

The report describes the fourth round of consumer satisfaction surveys that were conducted with people who had been in contact with the Information & Referral/Assistance (I&R/A) Call Center or received Options Counseling (OC) services of Aging and Disabilities Resource Connection (ADRC) of Oregon. Data for this survey were collected in November 2014. This Executive Report summarizes and presents data on overall satisfaction, conclusions, and recommendations for the ADRC program.

Wavelet-Coupled Machine Learning Methods For Drought Forecast Utilizing Hybrid Meteorological And Remotely-Sensed Data, R. Tan, Marek Perkowski

Electrical and Computer Engineering Faculty Publications and Presentations

In this study, a statistical drought early warning method is proposed using novel machine learning algorithms, with the inclusion of multiple drought-related attributes from precipitation, satellite-derived land cover vegetation indices, and surface discharge. The forecast is made for the long-term hydrological drought in the region of Central Valley, California. The wavelet transform analysis is employed in combination with support vector regression and artificial neural network algorithms for improving the drought prediction effectiveness. The performance of the drought prediction is evaluated using three statistical metrics: Coefficient of Determination (R2 ), Root-Mean-Square Error (RMSE), and Mean-Absolute-Error (MAE). The results clearly indicate that …

Estimation Of Transient Temperature Distribution During Quenching, Via A Parabolic Model, Diego E. Lozano, Gabriela Martinez-Solis, Rafael David Mercado-Solis, Rafael Colás, George E. Totten

Mechanical and Materials Engineering Faculty Publications and Presentations

A material-independent model to estimate the transient temperature distribution in a test probe quenched by immersion is presented in this study. This model is based on the assumption that, under one-dimensional unsteady heat conduction, the radial temperature distribution at the end of an interval belongs to the equation of a parabola. The model was validated using AISI 304 stainless steel test probes (Φ8×40 mm and Φ12×60 mm) quenched from 850 to 900 °C in water and in water-based NaNO2 solutions at 25 °C and in canola oil at 50 °C. Additionally, square test probes (20×20×100 mm) were quenched from 550 …

Nonlinear Analysis And Digital Pre-Distortion Of The Sc-Fdma Signals In Lte Uplink System, Changwen Zhu

Dissertations and Theses

Single-carrier frequency division multiple access (SC-FDMA) has become a popular alternative to orthogonal frequency division multiple access (OFDM) in multi-user communication on LTE uplink systems. This is primarily due to the low peak-to-average power ratio (PAPR) of SC-FDMA compared to that of OFDM. Long-term evolution (LTE) uses SC-FDMA on the uplink to exploit this PAPR advantage to reduce transmit power amplifier (PA) back-off in mobile user terminals. However, the latest generation of communication systems requires high power efficiency and a large quantity of capacity in transmitting mobile data, bringing out some other critical problems: 1) the nonlinearity of Radio Frequency …

Pedagogies Of Possibility Within The Disciplines: Critical Information Literacy And Literatures In English, Heidi L. M. Jacobs

Communications in Information Literacy

While most disciplines have responded to the generic openness of the ACRL Standards by creating discipline-specific guidelines and competencies, there is a need for us to consider other ways to approach information literacy in the disciplines. Critical information literacy reminds us to engage ourselves and our students with what Freire described as "problem-posing education," which "bases itself on creativity and stimulates true reflection and action upon reality" (84). This article discusses how information literacy work in literatures in English could engage students and librarians in the act of collective problem-posing about the discipline. Drawing upon critical information literacy's emphasis on …

Information Literacy And The Flipped Classroom: Examining The Impact Of A One-Shot Flipped Class On Student Learning And Perceptions, Andrea Wilcox Brooks

Communications in Information Literacy

This article examines the flipped classroom approach in higher education and its use in one-shot information literacy instruction sessions. The author presents findings from a pilot study of student learning and student perceptions pertaining to flipped model IL instruction. Students from two sections of the same course participated in this study. One section received one-shot information literacy instruction using a flipped approach, while the other section received traditional one-shot instruction. No difference was found between the two groups on a pre- and post-test analysis; however, an analysis of students' final papers from the flipped section showed more bibliography citations to …

Teaching Matters: The Information Literacy Implications Of The Bohannon Sting, Rudy Leon

Communications in Information Literacy

This column looks at the information literacy implications of the John Bohannon Open Access Sting.

Force Chains As The Link Between Particle And Bulk Friction Angles In Granular Material, Adam M. Booth, Ryan Hurley, Michael P. Lamb, José E. Andrade

Geology Faculty Publications and Presentations

From sediment transport in rivers to landslides, predictions of granular motion rely on a Mohr-Coulomb failure criterion parameterized by a friction angle. Measured friction angles are generally large for single grains, smaller for large numbers of grains, and no theory exists for intermediate numbers of grains. We propose that a continuum of friction angles exists between single-grain and bulk friction angles due to grain-to-grain force chains. Physical experiments, probabilistic modeling, and discrete element modeling demonstrate that friction angles decrease by up to 15° as the number of potentially mobile grains increases from 1 to ~20. Decreased stability occurs as longer …

Flight Test Of Pacific Spaceflight Pressure Garment Mark Ii In Bell 206 Jet Ranger, Cameron M. Smith

Anthropology Faculty Publications and Presentations

Pacific Spaceflight’s Mark II pressure garment (model Gagarin) was test flown to 17,200 feet MSL (5,242m) while worn and operated by Dr. C.M. Smith. The garment and its portable life support system (PLSS) maintained appropriate pressure, temperature and carbon dioxide levels throughout the 47-minute flight. The suit also provided sufficient elbow mobility, due to its convolute joints, for the suited person to operate the portable life support system’s manual suit pressure setting valve and the hand-held radio.

Synthesis Of Irreversible Incompletely Specified Multi-Output Functions To Reversible Eosops Circuits With Pse Gates, Robert Adrian Fiszer

Dissertations and Theses

As quantum computers edge closer to viability, it becomes necessary to create logic synthesis and minimization algorithms that take into account the particular aspects of quantum computers that differentiate them from classical computers. Since quantum computers can be functionally described as reversible computers with superposition and entanglement, both advances in reversible synthesis and increased utilization of superposition and entanglement in quantum algorithms will increase the power of quantum computing.

One necessary component of any practical quantum computer is the computation of irreversible functions. However, very little work has been done on algorithms that synthesize and minimize irreversible functions into a …

Portland Spectrum, December 2014, Portland State University. Student Publications Board

Portland Spectrum

Editor: Corinne Hutfilz

Articles in this issue include: GMO: An Informed Right to Know; Aetna: Is it Worth it?; Torrenting on Campus; Food Insecurity Across College Campuses; Raise the Umbrella: Protests in Hong Kong Continued; A Point of View..... Arrival at Tangier (A Snapshot in Time; Meeting a Writer); and ISIS: A History of Terror;

The Impact Of Documentation Status On The Educational Attainment Experiences Of Undocumented Hispanic/Latino Students, Brittanie Alexandria Roberts

Dissertations and Theses

The issue of undocumented immigration has recently taken center-stage in the media and national politics in the United States. A large population of undocumented youth grows up with legal access to public education through high school, following the Supreme Court decision of Plyler vs. Doe, but faces legal and economic barriers to post-secondary education. Following high school, undocumented Hispanic/Latino youth legal protections end, greatly limiting chances for upward mobility through traditional post-secondary education pipelines. In some cases, knowledge of future barriers to post-secondary education leads to a decline in educational motivation.

The current political atmosphere makes this study a bit …

Elaborating Patient Agency In Breast-Cancer Care: A Grounded Theoretical Analysis Of Patients Asserting Treatment Preferences, Rachel Sofia Erdman

Dissertations and Theses

Successful physician-patient communication is increasingly being acknowledged as a vital aspect of healthcare today. Research in the field has not examined all aspects of patient-centered care and the aspects that have been studied have not been grounded in actual patient action. The research done in the field has largely been studied quantitatively. The present thesis research attempts to contribute to the gap in the field of physician-patient communication by qualitatively examining patient assertiveness. This thesis examines conversations between women in Portland, Oregon recently diagnosed with breast cancer talking to their surgeons about their diagnoses and treatment options. Using grounded qualitative …

Understanding Sexual Assault Survivors' Willingness To Participate In The Judicial System, Mildred Ann Davis

Dissertations and Theses

This dissertation examined the relationship between support services for adult survivors of sexual assault and judicial outcomes. Specifically, this study explored survivors' willingness to participate in the judicial process. Although "victim unwilling to participate" is the primary reason given by the police for cases not progressing to prosecution, we know little about most aspects of survivors' willingness to participate in the judicial process, especially beyond initial reporting of the assault. The steps to prosecution are dependent on one another yet a survivor's willingness to participate in these steps is a fluid process. The primary research question explored was Are there …

From The Whiteboard To The Web: Equipping Administrators To Recruit, Hire, And Induct Top Quality K-12 Online Teachers, Daniel Keith Huld

Dissertations and Theses

Online learning is taking our nation by storm and changing the face of education forever. By 2014 we are projected to have 10 million students taking at least one online class (Nagel, 2009). The online revolution is one of the greatest changes the field of education has seen in the last 25 years (Greenway & Vanourek, 2006). This major shift in education also represents a major shift in how our teachers are prepared and what great teaching looks like in online settings.

The online classroom is distinctly different than the brick-and-mortar classroom, and success in the classroom does not necessarily …

Learning To Give A Hoot: Open Access Workflows For Academic Librarians (Oawal), Jill Emery

Library Faculty and Staff Publications and Presentations

Graham Stone and Jill Emery have been working to try to develop an outline of some of the best practices for managing open access workflow management in academic libraries. In March 2014, we went live with OAWAL (pronounced owl): a crowdsourced blog/wiki to develop some of these practices and learn what innovators and experts in the field of scholarly communications and open access management have been doing. Our project is international in scope and relies heavily on countries such as the UK where country mandates are driving the development of workflows and management tools. This presentation will focus on recent …

Strategic Planning Development Team Meeting Notes 12/2/14, Strategic Planning Development Team

Resource Archive

A summary of previous meetings which also addressed further progress of the strategic plan. The group reinforced that Wim Wiewel is present as an observer, not an active member. Coraggio representatives presented their findings and presented what is needed for further advancement in the project. The SPDT questioned the foundation of Portland State University--whether it is too selective or not selective enough--but the team come to a consensus that regardless of selectivity, the students enrolled need to receive the help they need to succeed. Four members of the committee, Crespo, Seltzer, Ruth and Williams, are tasked with crafting a vision …

Vision Statement Research, Strategic Planning Development Team

Resource Archive

This document is a compilation of mission and vision statements from a number of other urban universities in the United States.

Spatial Thinking In Planning Practice: An Introduction To Gis, Yiping Fang, Vivek Shandas, Eugenio Arriaga Cordero

PDXOpen: Open Educational Resources

The goals of this textbook are to help students acquire the technical skills of using software and managing a database, and develop research skills of collecting data, analyzing information and presenting results. We emphasize that the need to investigate the potential and practicality of GIS technologies in a typical planning setting and evaluate its possible applications. GIS may not be necessary (or useful) for every planning application, and we anticipate these readings to provide the necessary foundation for discerning its appropriate use. Therefore, this textbook attempts to facilitate spatial thinking focusing more on open-ended planning questions, which require judgment and …

Selective Indicators For Optical Determination Of Disease Biomarkers, Lovemore Hakuna

Dissertations and Theses

The most abundant biological thiols, homocysteine (Hcy), cysteine (Cys) and glutathione (GSH) have been the subject of intense research due to their association with a wide range of diseases. They play a key role in maintaining the redox status of biological systems. Selective detection methods for these thiols are challenging due to their similar structures and properties. Current commercially available detection methods use separations, fragile and expensive enzymatic or immunogenic materials and complex instrumentation. This has led to a global effort towards developing simple and inexpensive optical probes and indicators selective for specific biological thiols.

Highly selective chemical probes and …

Human Whole-Blood (1)H2o Longitudinal Relaxation With Normal And High-Relaxivity Contrast Reagents: Influence Of Trans-Cell-Membrane Water Exchange, Gregory J. Wilson, Mark Woods, Charles S. Springer Jr., Sarah Bastawrous, Puneet Bhargava, Jeffrey H. Maki

Chemistry Faculty Publications and Presentations

PURPOSE: Accurate characterization of contrast reagent (CR) longitudinal relaxivity in whole blood is required to predict arterial signal intensity in contrast-enhanced MR angiography (CE-MRA). This study measured the longitudinal relaxation rate constants (R₁ ) over a concentration range for non-protein-binding and protein-binding CRs in ex vivo whole blood and plasma at 1.5 and 3.0 Tesla (T) under physiologic arterial conditions.

METHODS: Relaxivities of gadoteridol, gadobutrol, gadobenate, and gadofosveset were measured for [CR] from 0 to 18 mM [mmol(CR)/L(blood)]: the latter being the upper limit of what may be expected in CE-MRA.

RESULTS: In plasma, the ¹H2 O R …

Gender And Sexualities: An Inquiry, Jason Gary Damron, Vicki L. Reitenauer

PDXOpen: Open Educational Resources

Gender and Sexualities: An Inquiry was created to accompany UNST 231 Sophomore Inquiry: Gender and Sexualities at Portland State University.

Adopt/Adapt
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Street Level Food Networks: Understanding Ethnic Food Cart Supply Chains In Eastern Portland, Or, Alexander G. Novie

Dissertations and Theses

Portland, OR, is the site of a unique urban food cart phenomenon that provides opportunities for small business ownership and access points for culturally specific food for the city's foreign-born and minority populations. Known as a "foodie haven," Portland also has an active sustainable food movement with engaged citizens and support from city and regional policies aimed at significantly increasing the consumption of local food. To date, there have been no in-depth studies on the sourcing habits of Portland food cart owners and whether or not these street-level actors are involved in the area's local alternative food movements (AFNs). The …

Antibacterial Gene Transfer Across The Tree Of Life, Jason A. Metcalf, Lisa J. Funkhouser-Jones, Kristen A. Brileya, Anna-Louise Reysenbach, Seth R. Bordenstein

Biology Faculty Publications and Presentations

Though horizontal gene transfer (HGT) is widespread, genes and taxa experience biased rates of transferability. Curiously, independent transmission of homologous DNA to archaea, bacteria, eukaryotes, and viruses is extremely rare and often defies ecological and functional explanations. Here, we demonstrate that a bacterial lysozyme family integrated independently in all domains of life across diverse environments, generating the only glycosyl hydrolase 25 muramidases in plants and archaea. During coculture of a hydrothermal vent archaeon with a bacterial competitor, muramidase transcription is upregulated. Moreover, recombinant lysozyme exhibits broad-spectrum antibacterial action in a dose-dependent manner. Similar to bacterial transfer of antibiotic resistance genes, …

Teachers Teaching Teachers: A Sustainable And Inexpensive Professional Development Program To Improve Instruction, Carol L. Campbell

Dissertations and Theses

School districts face tremendous budget challenges and, as a result, professional development has been "trimmed" from many school budgets. (Habegger & Hodanbosi, 2011). School administrators responsible for planning professional development face a daunting task and often focus on PowerPoints, district mandated training, one-shot presentations, and workshops that are delivered by expensive experts. These types of activities lack teacher collaboration, time for sharing of ideas and opportunity for reflection and analysis (Torff & Byrnes, 2011, Coggins, Zuckerman & Mckelvey, 2010).

The problem addressed in this study is that teacher professional development is usually planned by school administrators who are provided little …

Assessment Of Arbuscular Mycorrhizal Symbiosis On Invasion Success In Brachypodium Sylvaticum, Caitlin Elyse Lee

Dissertations and Theses

The effects that mutualistic soil biota have on invasive species success is a growing topic of inquiry. Studies of the interactions between invasive plants and arbuscular mycorrhizal fungi (AMF) have shown changes in AMF community composition, reductions in AMF associations in invasive plants, and changes in native species fitness and competitive outcomes in invasive-shifted AMF communities. These findings support the degraded mutualist hypothesis, where invasive species alter the mutualist community composition, resulting in detrimental associations with the new mutualist community for native species. Here I present two studies that examine various aspects of the arbuscular mycorrhizal fungal (AMF) mutualism in …

Confined Mesoscopic Fluid-Like Films Analyzed With Frequency Modulation And Acoustic Detection, Rodolfo Fernandez Rodriguez

Dissertations and Theses

Complete understanding of the physics underlying the changes in viscoelasticity, relaxation time, and phase transitions that mesoscopic fluid-like systems undergo at solid-liquid interfaces or under confinement remains one of the major challenges in condensed matter physics. Moreover, studies of confined mesoscopic fluid films are relevant to technological areas like adhesion, wetting processes and nanotribology.

This thesis addresses the interaction between two sliding solids interfaces separated by a nanometer sized gap, with emphasis on the role of the mesoscopic fluid film trapped between them. For this purpose we integrated two acoustic techniques, recently introduced by our group, into a sub-nanometer precision …