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Articles 1 - 28 of 28
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Through A Veteran's Eyes: The Transition Of The Army Leader Into The Civilian Workforce, Maria Carolina Gonzalez-Prats
Through A Veteran's Eyes: The Transition Of The Army Leader Into The Civilian Workforce, Maria Carolina Gonzalez-Prats
Student Research Symposium
In the next five years, over a million service members will be transitioning back into civilian life, the majority from tours in Afghanistan and Iraq. This qualitative study, completed as a satisfying requirement for the Masters of Psychology in Organization Development degree at Sonoma State University, explored the experiences of leaders, as well as the challenges and enablers that effect their transition from the Army to the Civilian workforce. The thesis also examined the impact on both the military and civilian communities. Data was collected using interviews with ten Army leaders, whose time in service ranged from four to 22 …
Study Of Employment Retention Veterans (Serve): Improving Reintegration Of Oregon National Guard And Reserves In The Workplace, Gilbert Patrick Brady, Jr., Leslie B. Hammer
Study Of Employment Retention Veterans (Serve): Improving Reintegration Of Oregon National Guard And Reserves In The Workplace, Gilbert Patrick Brady, Jr., Leslie B. Hammer
Student Research Symposium
This presentation will provide an overview of the recently funded Department of Defense grant (Principal Investigator, Leslie Hammer, Ph.D.). Since 9/11 over 2.8 million United States military personnel have served in and around Iraq and Afghanistan. By 2018, the number of post-9/11 veterans is projected to top 3.1 million. Of these most recent veterans, 18% have difficulty holding a job and many experience family difficulty. Presently, a third or more of these post-9/11 veterans – some 874,728 service members and counting – have deployed to various global hotspots as active-duty reservists of the U.S. armed forces. Unemployment, underemployment and mental …
Temperature Dependence Of Transcription Initiation In Archaea, Ming-Hsiao Wu
Temperature Dependence Of Transcription Initiation In Archaea, Ming-Hsiao Wu
Student Research Symposium
TFB1 and TFB2 are two Transcription Factor B (TFB) found in Pyrococcus furious (Pfu), a hyperthermophile archaeon. TFB1 is the primary TFB in Pfu, and highly conserved with eukaryotic TFIIB. TFB2 lacks some residues in B-reader region which interacts with promoter DNA and recognizes the transcription start site. Exposure to heat-shock increases the mRNA level of Pfu TFB2 in vivo; however, mRNA level of Pfu TFB1 stays the same. In Pfu, different TFBs may be used for regulating transcription. It is hypothesized that TFB2 is involved in heat-shock reaction and increases the transcription efficiency of heat-shock promoters. In our in …
Evaluation Of Smart Phone Weight-Mile Tax Truck Data For Supporting Freight Modeling, Performance Measures And Planning, Katherine E. Bell, Miguel Andres Figliozzi
Evaluation Of Smart Phone Weight-Mile Tax Truck Data For Supporting Freight Modeling, Performance Measures And Planning, Katherine E. Bell, Miguel Andres Figliozzi
Student Research Symposium
Oregon is one of the few states that currently charge a commercial truck weight-mile tax (WMT). This research serves to evaluate ancillary applications for a system developed by the Oregon Department of Transportation (ODOT) to simplify WMT collection. The data collection system developed by ODOT – Truck Road Use Electronics (TRUE) - includes a smart phone application with a Global Positioning System (GPS) device and microprocessor. The TRUE data has enormous advantages over commercial truck GPS data used in previous research due to its level of disaggregation and its potential to differentiate between vehicle and commodity types. This research evaluates …
Perceptions Of Mexican Residents In Oregon About Mexican Politics, Anabel López Salinas
Perceptions Of Mexican Residents In Oregon About Mexican Politics, Anabel López Salinas
Student Research Symposium
In 2012, the Mexican Consulate in Portland, Oregon, through the local Spanish press announced the guidelines for participating in the election of the president of Mexico held in July of that year. Despite the efforts made by the Mexican authorities to promote voting, 22 interviews with Mexicans living in Oregon determined that the migrant population lacks the necessary tools to exercise their vote from this state. Most respondents think that the Mexican state by not facilitating their participation by providing those required tools, forget the enormous economic contributions of migrants to the country. Oregon is a new destination for Mexican …
Post-Revolution Language Change In The Libyan Media: Tamahaq News Broadcast, Ashour Abdulaziz
Post-Revolution Language Change In The Libyan Media: Tamahaq News Broadcast, Ashour Abdulaziz
Student Research Symposium
This paper examines segments from the very first Tamazight language TV news broadcast in the history of Libya in May 11, 2011. In the analysis, I focus on (a) Tamazight-Arabic code switching and (b) the profound influence of Arabic on the Tamazight spoken in this situation. Before the February 17 Revolution, such a broadcast was unthinkable, as the use of the language in such public contexts was outlawed during Gaddafi's rule. Post Feb. 17, the Tamazight language emerged in the media as a new linguistic spoken and written resource in the Libyan setting itself up as in contrast to and …
The Importance Of Choice: Political Intermediaries And Democratization In Egypt After The Arab Spring, Matthew Lacouture
The Importance Of Choice: Political Intermediaries And Democratization In Egypt After The Arab Spring, Matthew Lacouture
Student Research Symposium
Is post-revolution Egypt demonstrably different from the ancien régime? Where and between whom is political competition currently taking place? In the aggregative conception, democracy requires the presence of substantive political choice, differentiated through 'robust' competition between intermediaries – most often political parties – that serve to effectively aggregate and articulate political preferences. This produces an observable and genuine link between public preferences and government policies. In Egypt, the lack of a coheren and viable alternative to the Muslim Brotherhood-affiliated Freedom and Justice Party (FJP) – itself an amalgamation of conflicting and particularistic interests – has deprived the people of any …
The Story And Song Centered Pedagogy: Teaching Empathy In The Classroom, Parfait Adegboyé Bassalé
The Story And Song Centered Pedagogy: Teaching Empathy In The Classroom, Parfait Adegboyé Bassalé
Student Research Symposium
This presentation was given as part of the Panel Presentation Studies in Education at Portland State University's Research Symposium. The Story and Song Centered Pedagogy (SSCP) is an educational framework that uses songs, stories and reflective questioning to increase empathy with an audience. In a preliminary study conducted with high school students, I tested the prediction that being exposed to the SSCP would increase empathy. I focused on the Emotional Concern (EC) and Perspective Taking (PT) subscales of the renowned empathy measurement tool: the Interpersonal Reactivity Index (IRI). Subjects self-reported their answers to the IRI before and after undergoing the …
Learning & Practice Sessions: Contributing To A Strong Academic Foundation For Undergraduate Csd Students, Erin E. Robling, Susan Ginley, Rik Lemoncello
Learning & Practice Sessions: Contributing To A Strong Academic Foundation For Undergraduate Csd Students, Erin E. Robling, Susan Ginley, Rik Lemoncello
Student Research Symposium
While the scope of practice for speech-language pathologists has expanded dramatically, graduate clinical training remains a two year master’s degree. A solid foundation in undergraduate communication sciences and disorders (CSD) coursework is ever-more essential to prepare students for the breadth of knowledge and skills obtained in graduate school. How are undergraduate/post-baccalaureate CSD programs evolving to meet this challenge? This study proposes one such enhancement. Learning & Practice Sessions are a program by which peer undergraduate and post-baccalaureate students lead weekly, post-class review sessions during which participating students have an opportunity to review the week’s material, discuss challenging concepts, examine anatomical …
Room To Roam: Using Gps To Determine The Effect Of Exhibit Size And Herd Size On Zoo Elephant Movement, Matthew Holdgate, Deborah A. Duffield, David J. Shepherdson
Room To Roam: Using Gps To Determine The Effect Of Exhibit Size And Herd Size On Zoo Elephant Movement, Matthew Holdgate, Deborah A. Duffield, David J. Shepherdson
Student Research Symposium
Asian and African elephants (Elephas maximus and Loxodonta spp.) are particularly susceptible to welfare concerns in zoological institutions due to their high intelligence, complex social structures, and sheer size. Zoo elephants are also limited by the space available to them, and the resulting lack of exercise may contribute to a host of health issues, including obesity and foot disease. Zoos rely largely on changes to the exhibit size and herd size to promote elephant movement, yet the effect of these factors on movement is unknown. Our study used GPS-equipped anklets to track the movement of 80 elephants at 43 zoos …
Exploring The Application Of Reconstructability Analysis To Behavior Expression Data From A Social Network, Martin Zwick, Teresa D. Schmidt
Exploring The Application Of Reconstructability Analysis To Behavior Expression Data From A Social Network, Martin Zwick, Teresa D. Schmidt
Student Research Symposium
Reconstructability analysis (RA) is proposed as a complementary method for evaluating social network-related phenomena. Longitudinal records of social behavior expression among members of a social network are commonly represented as a set of social network analysis (SNA) connections, but might also be usefully represented as a set of associations derived through RA methods. Reconstructability Analysis identifies individuals as being associated when their behavior patterns appear coordinated–a representation that is unavailable with standard SNA. To explore the potential usefulness of RA for analyzing social behaviors, simulated behavior patterns were evaluated with both SNA and RA, and the results were compared. Several …
Fidelity And Adaptation Of A Sibling Relationship Intervention For The Prevention Of Antisocial Behavior, Casadi "Khaki" Marino
Fidelity And Adaptation Of A Sibling Relationship Intervention For The Prevention Of Antisocial Behavior, Casadi "Khaki" Marino
Student Research Symposium
The Supporting Siblings in Foster Care program (SIBS) utilizes a universal recruitment strategy for a RCT skills training program for siblings in foster care at high risk of poor health, disability, and conduct issues. This poster session will examine the process of program adaptation, review the components of intervention fidelity, and explore the challenges of intervention in the context of foster children's lives. Fidelity of implementation and program adaptation are essential to prevention program design. Program adaptation may be required for cultural fit and ecological factors. Focus group data from a group of intervention staff indicated that changes were made …
Unpacking Producer / Consumer Relationships In Ethical Markets: A Look At Portland's Diy Sector, Renée Bogin Curtis
Unpacking Producer / Consumer Relationships In Ethical Markets: A Look At Portland's Diy Sector, Renée Bogin Curtis
Student Research Symposium
This presentation analyzes ethical consumption practices in alternative markets with a sector-specific focus evaluation of indicators and impacts. The paper reviews qualitative research conducted on Portland’s artisan economy with a focus on the independent or do-it-yourself (DIY) craft sector and presents follow up methods. General findings demonstrate ways market perceptions of sector participants reveal value-driven practices, illustrate impacts on production (through the role of place), and highlight impacts of market practices on producer accountability and consumer choices. Specific findings indicate drivers of the DIY market include integrity of production and consumption, communitarian values, minimal concern about competition, and attitudes of …
Computational Capabilities Of Leaky Integrate-And-Fire Neural Networks For Liquid State Machines, Amin Almassian, Christof Teuscher
Computational Capabilities Of Leaky Integrate-And-Fire Neural Networks For Liquid State Machines, Amin Almassian, Christof Teuscher
Student Research Symposium
We analyze the computational capability of Leaky Integrate-and-Fire (LIF) Neural Networks used as a reservoir (liquid) in the framework of Liquid State Machines (LSM). Maass et. al. investigated LIF neurons in LSM and their results showed that they are capable of noise-robust, parallel, and real-time computation. However, it still remains an open question how the network topology affects the computational capability of a reservoir. To address that question, we investigate the performance of the reservoir as a function of the average reservoir connectivity. We also show that the dynamics of the LIF reservoir is sensitive to changes in the average …
Spectroscopic Studies Of Cu2+ And Zn2+ Binding To Prodigiosin Analogs, Karen Chichetu, Papireddy Kancharla, Shilah Bonnett, Kevin Reynolds
Spectroscopic Studies Of Cu2+ And Zn2+ Binding To Prodigiosin Analogs, Karen Chichetu, Papireddy Kancharla, Shilah Bonnett, Kevin Reynolds
Student Research Symposium
Prodigiosins are a family of secondary metabolites that were first isolated from the bacterium Serratia marascens. These natural compounds are red pigmented and characterized by a tri-pyrrole skeleton with a C-4 methoxy group. They have been reported to have good biological properties that include anticancer, antimalarial, antimicrobial and immunosuppressive activities. We have synthesized analogs of the natural prodigiosins (prodiginines) to produce a library of biologically active compounds which have improved biological activity and reduced cytotoxicity in human cells. In this work we studied the interaction between prodiginines and Cu2+ and Zn2+ using UV and Mass Spectroscopy techniques. Early results show …
Polyethylenimine-Enhanced Alumina Nanoscale Adjuvant For Cancer Vaccine, Naoko Uno, Haiyan Li, Hong-Ming Hu, Jun Jiao
Polyethylenimine-Enhanced Alumina Nanoscale Adjuvant For Cancer Vaccine, Naoko Uno, Haiyan Li, Hong-Ming Hu, Jun Jiao
Student Research Symposium
Aluminum oxide nanoparticles (Al2O3 NPs) have been shown to increase the efficiency of cell-mediated immune response. Specifically, CD8 and CD4 immune response is required for T cell activation by dendritic cells. These nanoparticles, when functionalized with peptides and other molecules, can be used as vaccine in cancer treatment. In this study, Al2O3 NPs were attached to E6/E7 proteins. HPV-induced cervical cancer expresses E6/E7 antigens. E6/E7 proteins were attached using surface modification of the Al2O3 NPs; different types of molecules were tested to see which adhered the highest amount of protein and produced the strongest cell response. Protein measurements were done …
Training An Asymmetric Signal Perceptron In An Artificial Chemistry, Peter Banda
Training An Asymmetric Signal Perceptron In An Artificial Chemistry, Peter Banda
Student Research Symposium
Autonomous learning implemented purely by means of a synthetic chemical system has not been previously realized. Learning promotes reusability, and minimizes the system design to simple input-output specification. In this poster, I present a simulated chemical system, the first full-featured implementation of a perceptron in an artificial (simulated) chemistry, which can successfully learn all 14 linearly separable logic functions. A perceptron is the simplest system capable of learning inspired by the functioning of a biological neuron. My newest model called the asymmetric signal perceptron (ASP) is, as opposed to its predecessors such as the weight-race perceptron (WRP), substantially simpler by …
Healthy Snack Availability Near High- And Low-Income Urban Schools, Hayley Pickus, Nancy Findholt, Betty T. Izumi, Thuan Nguyen
Healthy Snack Availability Near High- And Low-Income Urban Schools, Hayley Pickus, Nancy Findholt, Betty T. Izumi, Thuan Nguyen
Student Research Symposium
Children’s snacking habits are influenced by their immediate food environments. Increasingly, findings show that factors such as corner stores near schools are related to obesity. This study was conducted in preparation for a larger, community-based participatory research project to create "healthy snacking zones” near schools in a rural Oregon county. The objective was to assess healthy snack availability in stores located within a half mile radius of high- and low-income elementary and middle schools in Portland, Oregon. Using Geographic Information Systems, convenience and food stores were selected and classified as either high- or low income based on % eligibility to …
Touring The Ancient West: Archaeological Interpretation In Nuwuvi (Southern Paiute) Homelands, Cerinda Survant
Touring The Ancient West: Archaeological Interpretation In Nuwuvi (Southern Paiute) Homelands, Cerinda Survant
Student Research Symposium
Reconciling stewardship and recreational access to public lands is particularly problematic at sites of archaeological and spiritual significance. This poster details the development of a methodology to assess the interpretation of vulnerable archaeological resources on public lands. Using case studies of five existing visitors centers/interpretive areas in the American West, this research uses qualitative and quantitative methods to evaluate different strategies for interpreting landscape, environment, and culture to the visiting public. Case studies include Bandolier National Monument, Mesa Verde National Park, Petroglyph National Monument, Ute Mountain Tribal Park, and Grimes Point Archaeological Site. Areas of investigation include visitorship and visitor …
Finding Rna-Dna Hybrid Viruses, Jeremy Filip, Geoffery S. Diemer, Kenneth M. Stedman
Finding Rna-Dna Hybrid Viruses, Jeremy Filip, Geoffery S. Diemer, Kenneth M. Stedman
Student Research Symposium
Until extremely recently it was thought that recombination between DNA and RNA viruses was practically nonexistent. The discovery of the "RNA-DNA Hybrid Virus" (RDHV) genome in a metavirome from a hightemperature acidic lake changed this view (Diemer and Stedman, 2012). We, and others, have discovered multiple examples of this recombination "hiding in plain sight" in multiple both published and unpublished metagenomes from many different environments and recent publications (Rosario et al., 2012 a Tae Woong Whon et al, 2012, Mitsuhiro Yoshida et al., 2013, and several others through personal communication). Comparing the proteins within these hybrid viruses against each other …
Evaluating A Possible Association Between Déjà Vu Frequency And Memory Performance To Explain Déjà Vu, Duncan Prince, Caleb Archuleta
Evaluating A Possible Association Between Déjà Vu Frequency And Memory Performance To Explain Déjà Vu, Duncan Prince, Caleb Archuleta
Student Research Symposium
Prior research shows that reported frequency of déjà vu declines with age. Memory performance also declines with aging. This study investigated separately a relationship of recollection and familiarity performance with déjà vu frequency, in a sample of college students to control for age. The hypothesis was that there will be a positive correlation between déjà vu frequency and recollection, and there will not be a correlation between familiarity and déjà vu frequency. The Inventory for Déjà Vu Experiences Assessment, a valid and reliable instrument, was used to quantify déjà vu frequency. Recollection and familiarity were quantitated separately by a memory …
Differential Effects Of Membrane Order On Membrane Permeability, Miranda J. Bradley, Marshall J. Colville, Miles J. Crumley, Drake C. Mitchell
Differential Effects Of Membrane Order On Membrane Permeability, Miranda J. Bradley, Marshall J. Colville, Miles J. Crumley, Drake C. Mitchell
Student Research Symposium
Phospholipid membranes segregate into lateral domains of liquid ordered (lo) and liquid disordered (ld) phases when cholesterol and mixed species of lipids with saturated and unsaturated acyl chains are present. To examine membrane permeability and rate of vesicle rupture by Triton in pure lo, pure ld, and mixed lo/ld phases, LUVs were prepared based on the ternary phase diagram of POPC, sphingomyelin, and cholesterol. These LUVs were loaded with 2mM carboxyfluorescein (CF) and formed by extrusion at 65oC. Using a stopped-flow fluorometer, changes in CF fluorescence were measured when LUVs were exposed to sudden osmotic gradients, pH gradients, or 0.1% …
Arts For All Experience: Examining The Experiences Of Individuals Who Receive Snap Benefits As They Access Arts Through The Arts For All Program, Michelle Deparrie, Jana L. Meinhold
Arts For All Experience: Examining The Experiences Of Individuals Who Receive Snap Benefits As They Access Arts Through The Arts For All Program, Michelle Deparrie, Jana L. Meinhold
Student Research Symposium
Status symbols, are behaviors that individuals use to communicate their place in society (Goffman, 1950). A commonly noted status symbol is participation in the high arts. A recent study described types of music in categories ranging from high-brow, to middle-brow, and low-brow. It was found that consumers of music, particularly the high-brow, were motivated to attend concerts for reasons relating to social capital (Roose & Stichele, 2010). Arts for All is a program in Portland Oregon that offers access to high art performances by making five dollar tickets available to those who qualify for SNAP (Supplementary Nutrition Assistance Program). The …
Bicycle-Specific Traffic Signals: Results From State-Of-The-Practice Review, Sam R. Thompson, Christopher Michael Monsere, Miguel Andres Figliozzi, Peter Koonce, Gary Obery
Bicycle-Specific Traffic Signals: Results From State-Of-The-Practice Review, Sam R. Thompson, Christopher Michael Monsere, Miguel Andres Figliozzi, Peter Koonce, Gary Obery
Student Research Symposium
This poster presents the results of a survey of North American jurisdictions with known installations of bicycle-specific traffic signals and a review of available engineering guidance. Surveys were sent to agencies in 21 jurisdictions (19 in the United States and two in Canada) that requested detailed engineering aspects of the signal design such as placement, mounting height, lens diameter, backplate color, type of actuation, interval times, use of louvers, and performance. We reviewed guidance documents produced by the National Association of City Transportation Officials (NACTO); American Association of State Highway and Transportation Officials (AASHTO); Transportation Association of Canada (TAC); the …
The Marxist Stream Of Untouchable, Daniel Blanchard
The Marxist Stream Of Untouchable, Daniel Blanchard
Student Research Symposium
This presentation was given as part of the Panel Presentation Studies in Postcolonial Modernism at Portland State University's Research Symposium. The study investigates Mulk Raj Anand's 1935 novel, Untouchable, through a Marxist lens, following its main character, Bakha, through his trials and tribulations. It argues that through Bakha's religious inquisitions, and frustrations with his experiences as a Hindu outcaste, he comes to realize himself as a class entity, part of the Marxist process of the proletariat's rise to power. Bakha evolves throughout the novel, from being uncritical of his own materialism and egoism, to recognizing his ethics as unrepresentative of …
Magical Realism As A Means Of Expressing Cultural Disjunction In Alejo Carpentier's 'El Reino De Este Mundo', Ryan Saul Cunningham
Magical Realism As A Means Of Expressing Cultural Disjunction In Alejo Carpentier's 'El Reino De Este Mundo', Ryan Saul Cunningham
Student Research Symposium
Cuban writer Alejo Carpentier's 1949 novel El reino de este mundo is considered to be a key work in the development of the magical realist narrative idiom. The narrative includes instances of the fantastic -- including ghosts and animal metamorphoses -- that the novel's Afro-Caribbean characters accept as factual. In keeping with his suggestions that "the entire history of America [is] a chronicle of the marvelous real," Carpentier supposes that these elements elucidate an "authentic" New World mode of perception. However, the novel's narrative structure belies the author's objective. The concurrent presentation of both non-Western/magical and Western/disenchanted cultural paradigms prevents …
Mathematics Orality And Literacy, Beverly Orth
Mathematics Orality And Literacy, Beverly Orth
Student Research Symposium
To become a mathematician, a student must learn how to "do" mathematics and also how to communicate with other mathematicians. Through a special language, both oral and written, mathematicians share a discourse community. This community extends not only across the boundaries of natural language, but also across centuries. My paper explores the following question: How does a person enter the discourse community of mathematicians? My research shows that learning mathematics parallels the learning of natural language reading and writing. Much like learning a foreign language, learning mathematics has been based mostly on oral tradition. The orality of mathematics learning is …
An Alternative Ribozyme For The Rna Hypercycle, Ishak Elkhal
An Alternative Ribozyme For The Rna Hypercycle, Ishak Elkhal
Student Research Symposium
In the quest to forward understanding of the prebiotic world (specifically, the RNA World Hypothesis), one of the most interesting paradigms to consider is the potential for cooperative networks that may have driven molecular evolution forward. Such a network may exist as an RNA hypercycle, as proposed by Eigen (1977). Much progress has been made towards an RNA hypercycle-like system, especially using the Azoarcus ribozyme system demonstrated by Vaidya et al. (2012). The current work is dedicated to constructing a second model as a cooperative RNA network, utilizing a group I intron from Coxiella burnetii (Cbu1917). The intron was constructed …