Digital Commons Network^™

Methods For Ethanol Production From The Enzymatic Hydrolysis And Fermentation Of Sugar Beet Pulp, Rachel Elizabeth Rorick

Agribusiness and Biosystems Engineering

Sugar beet pulp (SBP), the residue remaining after sucrose extraction, is currently sold as an animal feed. Humans cannot digest the cellulose in the pulp unlike ruminant animals. The pulp is primarily comprised of cellulose, hemicellulose, and pectin which can be hydrolyzed with commercial enzymes into fermentable sugars such as, glucose, arabinose, galacturonic acid, xylose, and galactose. These sugars can be fermented to produce ethanol. This research tested the variation of several enzymes, enzyme loading rates, solids loading rates, and fermenting organisms to increase ethanol yields from sugar beet pulp. Several commercial enzymes (cellulases, hemicellulases, pectinases, and proteases) were tested …

Rapid Evaluation Of Canola Lines For Cold Soak Filterability In Biodiesel, Hongjian Lin

Agribusiness and Biosystems Engineering

Worldwide concerns about fossil fuel depletion and energy security have recently triggered a research interest in biodiesel, which is renewable, biodegradable, and has several other advantages as an alternative to petro diesel. However, biodiesel may cause engine problems, especially fuel filter plugging, associated with its use in cold weather conditions. Trace contaminants such as glycerin, saturated monoglycerides (SMG), and soap compromise cold weather performance of biodiesel. A cold soak filtration test was recently included in the U.S. specifications for biodiesel (ASTM D 6751-09) to evaluate biodiesel cold weather performance. Canola seed has good potential to be a locally important biodiesel …

Characterization Of Salmonella Spp. Isolated From Beef Cattle Post-Weaning To Slaughter, Brenton Fred Nesemeier

Animal Sciences

The occurrence of Salmonella in cattle has been well documented, but little is known of tracking its prevalence and antimicrobial resistance (AMR) from postweaning to slaughter. This study follows a longitudinal approach, allowing for the best analysis of Salmonella prevalence and AMR in cattle. It was carried out to monitor variation in Salmonella prevalence and AMR patterns in beef cattle from range (calves post weaning in North Dakota (ND)) and feedlot cattle up to slaughter (Nebraska). Two separate groups were analyzed, cattle which remained at the Dickinson Research Extension Center (DREC) throughout the course of the study and calves which …

Serum Antibodies To Human Papillomavirus Type 6, 11, 16 And 18 And Their Role In The Natural History Of Hpv Infection In Men, Beibei Lu

USF Tampa Graduate Theses and Dissertations

Our understanding of humoral immune response to human papillomavirus (HPV) infection has been mainly derived from studies in women. Very little is known about humoral immune response to HPV in men. There is also a growing interest in understanding the burden of HPV exposure in the subgroups of the male population, including men who have sex with women (MSW), men who have sex with men (MSM) and men who have sex with both men and women (MSMW). This dissertation was undertaken to understand and characterize humoral immune response, measured by detectable serum antibody IgG, to HPV 6, 11, 16 and …

School Choice At The Crossroads Of Race, Class, And Accountability: An Analysis Of The Effects Of Voluntary School Choice On Elementary Schools In A Large District In The Southeastern United States, Teresa Craig Evans

USF Tampa Graduate Theses and Dissertations

In recent years, the responsibility for the desegregation of American public schools has transitioned from federal court mandates to school board programs and policies. There is widespread belief that this has resulted in the resegregation of schools across the country. One popular policy that is purported to provide the opportunity for voluntary integration, along with accountability for academic quality, is school choice. The purpose of this study was to consider the implications of such a policy in one large school district. There is an extensive body of research exploring who participates in school choice, how they make their choices, and …

Children/Youth With Disabilities: Their Parents Are Your Employees Training Manual And Workbook, Julie M. Rosenzweig, Anna M. Malsch, Eileen M. Brennan, Kathryn L. Mills, Lisa Maureen Stewart

School of Social Work Faculty Publications and Presentations

The training manual and workbook, including the survey, were originally designed as supplemental materials to a workshop delivered to human resource professionals by the Work-Life Integration Project. Once the materials were compiled and reviewed, we decided to make the document available as a printed resource for a more general audience. While the materials were initially developed for use with human resource professionals, they are readily adaptable for use with other groups of employees, such as supervisors, managers, or teams of co-workers. The manual is also suitable to be used by members of family support organizations and other individuals interested in …

Work-Life Integration And The Path To Social Sustainability, Eileen M. Brennan

School of Social Work Faculty Publications and Presentations

PDF version of a presentation given at Understanding Sustainability: Perspectives from the Humanities - The Second International Conference, Portland, OR, May 2010.

Review Of Three Recent Randomized Trials Of School-Based Mentoring: Making Sense Of Mixed Findings, Marc E. Wheeler, Thomas E. Keller, David L. Dubois

School of Social Work Faculty Publications and Presentations

Between 2007 and 2009, reports were released on the results of three separate large-scale random assignment studies of the effectiveness of school-based mentoring programs for youth. The studies evaluated programs implemented by Big Brothers Big Sisters of America (BBBSA) affiliates (Herrera et al., 2007), Communities in Schools of San Antonio, Texas (Karcher, 2008), and grantees of the U.S. Department of Education's Student Mentoring Program (Bernstein et al., 2009). Differences in the findings and conclusions of the studies have led to varying responses by those in practice and policy roles. The results of the BBBSA trial led the organization to undertake …

Communities Of Color In Multnomah County: An Unsettling Profile, Ann Curry-Stevens, Amanda Cross-Hemmer, Coalition Of Communities Of Color

School of Social Work Faculty Publications and Presentations

Existing data that informs decision making in Multnomah County inadequately captures the lived experiences of communities of color. Rarely do existing reports include dimensions of race and ethnicity. Much research has been undertaken without the involvement of those most affected by the decisions guided by the research. The impact is that communities of color are rarely visible at the level of policy. Data has been used to obscure and oppress rather than to empower communities and eliminate disparities. This is not acceptable, and leads to inequitable policy and devastating outcomes for people of color.

"Communities of Color in Multnomah County: …

Understanding School Travel: How Residential Location Choice And The Built Environment Affect Trips To School, Yizhao Yang, Marc Schlossberg, Robert Parker, Bethany Johnson

TREC Final Reports

This project investigates issues related to parents’ decisions about children’s school transportation. This has become an important area of research due to the growing concerns that increased reliance on private automobile in school travel has led to adverse health impacts on children and negative impacts on environment. This study examines school transportation in the context of where families live and how families make decisions about school travel in the process of choosing their residence.

Using a middle-sized school district in Oregon State, we conducted a 5500-household survey and a number of interviews and focus groups. The study shows that parents …

Growing Zenger Farm, Turhan Sonmez, Elizabeth Milner, Stacey Glenewinkel, Kate Carone

Master of Urban and Regional Planning Workshop Projects

Zenger Farm is a working urban farm in outer southeast Portland, Oregon, that promotes sustainable food systems, environmental stewardship and local economic development. Currently operating on 6 acres of farmland and 10 acres of wetland, the farm has an opportunity to expand onto 4 additional acres of adjacent land, and has asked Ecotone to help maximize the potential of that expansion. Growing Zenger Farm is a unique opportunity to learn how urban agriculture can best address the needs of communities. Food security, community development, education, economic development and environmental stewardship are components of Zenger's stated mission and goals and are …

Harvesting Opportunity: A Strategic Vision For Farmworker Housing And Microenterprise In Washington County, Nadine Appenbrink, Raihana Ansary, Elizabeth Decker, Kate Mcquillan, Karla Nelson, Emily Picha

Master of Urban and Regional Planning Workshop Projects

Farmworkers in Washington County face stagnant incomes, limited opportunities and a shortage of affordable, quality housing. In this six month workshop project, Tierra Planning explored the connection between quality affordable housing and economic development opportunities for farmworkers in Washington County. We worked with stakeholders, regulators, landowners and farmworkers to identify barriers, opportunities and alternatives. Our final product was a "strategic vision" that included both general recommendations and recommendations specific to Washington County based on extensive research, outreach, and alternatives analysis. Our hope is that our work will spark discourse among local farmers, housing developers, and policy makers in the Portland …

Gateway Ecodistrict Pilot Study, Michael Budds, Erin Reome, Dan Schauer, Aaron Wilson

Master of Urban and Regional Planning Workshop Projects

The Gateway EcoDistrict Pilot Study used site conditions, community priorities, and plans for future growth and development to recommend catalyst projects. The study’s objectives included raising awareness about the EcoDistrict concept, mapping physical and social assets conducive to an EcoDistrict, and identifying organizations interested in management of the pilot EcoDistrict. An assessment of opportunities and constraints to establishing an EcoDistrict in Gateway served as a corollary part of the study. This project was conducted under the supervision of Sumner Sharpe and Ellen Bassett.

Oak Grove Neighborhood Center Plan, Adam Bartini, Åsa Bergman, Alicia Crain, Carley Francis, Kathryn Mcgovern, Nathan Mcneil

Master of Urban and Regional Planning Workshop Projects

Foothill Planning worked with the Oak Lodge Community Council and Clackamas County Urban Green to create an Oak Grove Neighborhood Center Plan. The plan sought to foster a more livable and sustainable community by strengthening the Oak Grove historic business district and improving its connections with the planned Park Avenue MAX station via two transportation corridors, McLoughlin Boulevard and the Trolley Trail. The project articulated ways that these corridors can serve as gateways into the Oak Grove neighborhood and help to revitalize the community. Cognizant of neighborhood concerns regarding previous planning process, the project relied on community input to shape …

Willamette Park Assessment And Recommendations, Julia Babcock, Bernadette Le, Maren Murphy, Amy Rossa

Master of Urban and Regional Planning Workshop Projects

The vision of the project was to prioritize park improvements that balance the long-term sustainability and viability of the park with growing user demands. As a hybrid park, Willamette Park has a unique set of challenges related to its operations and management, as it is managed for both recreation and natural areas. The final report documents the process QPG undertook to explore opportunities and constraints in Willamette Park, and provides recommendations to guide the future planning of the park.

This project was conducted under the supervision of Sumner Sharpe and Ellen Bassett.

“Why Are Those Leaves Red?” Making Sense Of The Complex Symbols: Ecosemiotics In Education, Creeping Snowberry, Sean Blenkinsop, Veronica Hotton

University Studies Faculty Publications and Presentations

Deciphering complex signals of constructed educational systems requires symbolic interpretation; deciphering complex signals that are inherently ignorant of their ecological roots requires a modification of a semiotic approach, which we call ecosemiotics. This paper examines one of many average classrooms through this veil of perception. As part of a larger reevaluation of learning in modern culture, we take apart some of the symbols of the classroom and its contained learning. The paper ends with the positing of several more ecosophically inclined teacher responses.

Symbolic Structures As Systems: On The Near Isomorphism Of Two Religious Symbols, Martin Zwick

Complex Systems Faculty Publications and Presentations

Many symbolic structures used in religious and philosophical traditions are composed of “elements” and relations between elements. Similarities between such structures can be described using the systems theoretic idea of “isomorphism.” This paper demonstrates the existence of a near isomorphism between two symbolic structures: the Diagram of the Supreme Pole of Song Neo-Confucianism and the Kabbalistic Tree of medieval Jewish mysticism. The similarities of these two symbols in form and meaning are remarkable in the light of the many differences that exist between Chinese and Judaic thought. Intercultural influence might account for these similarities, but there is no historical evidence …

Connecting Students And The Community, Lynn Weigand

TREC Project Briefs

Nationwide, few university courses focus specifically on planning and design for pedestrian and bicycle facilities. Before this project, Portland State University had only one three-credit course on the subject, which did not provide adequate time to cover all aspects of bicycle and pedestrian transportation planning, policy, design and practice. Although the course provided a useful introduction to the topic and received excellent student reviews, faculty members saw a need to expand the curriculum to provide an opportunity for practical application of the theory and practice and increase the course’s academic rigor.

This project broadened the course offerings on bicycle and …

Pushing Pedalers: What Drives Bicycling?, Jennifer Dill, John Gliebe

TREC Project Briefs

Using a bicycle instead of a motor vehicle for a portion of regular travel could increase people’s physical activity and help improve the nation’s health. Over 60% of personal trips are five miles or less – a reasonable distance to ride a bike – and nearly 40% are two miles or less. Yet current rates of bicycling for transportation are very low, despite the popularity of recreational cycling. Given the potential of bicycling as a means of everyday travel, why aren’t more people cycling? Very little information has been available on the relationship between different types of infrastructure, such as …

Decision-Making In Secondary And Tertiary Interventions Of School-Wide Systems Of Positive Behavior Support, Terrance M. Scott, Peter J. Alter, Michael Rosenberg, Christopher Borgmeier

Special Education Faculty Publications and Presentations

Although the conceptual foundations of PBS at the universal level have been widely described and presented in the literature, secondary and tertiary interventions have been presented through very limited examples. This paper defines the key features of secondary and tertiary interventions and presents a decision-making process to guide schools through a continuum of strategies at these levels. The continuum is described in terms of a recursive loop, repetitively asking four questions: what is predictable about student failure, what is the simplest effective intervention, how can consistent implementation be achieved, and is it working? With each pass through this set of …

Deaf-Blind Young Adults In Action: Legislative Advocacy And Leadership, Amy T. Parker, Susan M. Bruce, Elizabeth Spiers, Suzanne V. Ressa, Roseanna C. Davidson

Special Education Faculty Publications and Presentations

In June 2009, six young adults who are deaf-blind traveled to Washington, D.C. for a one-week course on leadership and advocacy. The young adults were briefed on four legislative topics in deaf-blindness: the need for Support Service Providers (SSPs); increased support for the state technical assistance projects; inclusion in the Twenty-First Century Communications and Video Accessibility Act of 2009; and increased support for the Helen Keller National Center for Deaf-Blind Youths and Adults (HKNC). Each young adult selected one or two of the legislative topics as the focus of advocacy during Congressional visits. The participants further refined their communication, self-determination, …

Heard On The Net: Top Five Things To Watch In 2010, Jill Emery

Library Faculty and Staff Publications and Presentations

This column identifies the top five things to watch for in 2010.

Technology In Practice. Brand Perception 2.0, Meredith G. Farkas

Library Faculty and Staff Publications and Presentations

The article discusses the importance of a good online identity that will have an impact on young adults' future job prospects, as well as an organization's brand consciousness. It cites the efforts done by many librarians to teach the young adults on how to develop social networking sites and the importance of maintaining a good online identity. It presents the bad effects of having derogatory posts and other things such as compromising photographs. It also offers suggestions on what libraries can do when faced by bad publicity online.

Institutional Grey Literature In The University Environment, Gretta E. Siegel

Library Faculty and Staff Publications and Presentations

Historically, attention to grey literature in the academic library was focused on external collections – documents produced by government agencies or research centers. Little, if any, systematic attention was paid to the grey literature that was produced on university campuses. The advent of the Web, while bringing more interest to grey literature in general did not change this situation much. However, the trend toward the creation of institutional repositories has caused a considerable shift in interest. The formalization of collecting, processing, and integrating academic institutional grey literature should be critical to the mission of the University, regardless of format, and …

Book Review Of Does The Land Remember Me?: A Memoir Of Palestine By Aziz Shihab, Kristen Kern

Library Faculty and Staff Publications and Presentations

Reviews the book, Does the land remember me?: a memoir of Palestine by Aziz Shihab.

Portland State Library Newsletter; Winter 2010, Portland State University Library

Library Newsletters

In this issue: Making the Right Connections...; Navigating the Library; Exhibits & Events; Library’s Map Collection; Publications from the Library; and Donor Honor Roll

Brew To Bikes: Portland's Artisan Economy, Charles H. Heying

Urban Studies and Planning Faculty Publications and Presentations

Brew to Bikes: Portland's Artisan Economy explains how post-industrial economic transformations have created a space for artisan enterprises to flourish. Dissatisfied with passive consumption, many residents of Portland, OR take matters into their own hands. Associate Professor of Urban Studies Charles Heying noticed these local artisans prospering all over the city and set out to study their thriving economy. Profiling hundreds of local businesses, and with an eye on Portland's unique penchant for sustainability and urban development, Brew to Bikes is about everything from bike manufacturers to microbreweries, from do-it-yourself to traditional crafts. A treatise to local, ethical business practices, …

Manufactured Home Parks: Norcs Awaiting Discovery, Andrée Tremoulet

Urban Studies and Planning Faculty Publications and Presentations

This paper examines manufactured home parks as a type of naturally occurring retirement community and considers the potential for adding social service programs (NORC-SSP) to enable further aging in place. An analysis of six focus group interviews with 48 residents found that the physical and social environment promoted a sense of safety and community, and that this housing option was an intentional lifestyle choice. Risks included the possibility of bad management and park closure. Manufactured home parks were found to offer an attractive option for exploring a NORC-SSP model that builds on residents' assets and community capacity.

Integrating Education, Evaluation & Partnerships Into Large-Scale Sustainable Stormwater Management Programs, Vivek Shandas, Anne Nelson, Carine Arendes

Urban Studies and Planning Faculty Publications and Presentations

Integrated stormwater management using green infrastructure shows promise in saving money and mitigating environmental impacts caused by urban development. Equally important are the potential community benefits, including better understanding of ecological systems, increased access to urban green spaces, safer and healthier neighborhoods, and informed residents that are equipped to take action to improve watershed health. As a partnership between the City of Portland Environmental Services, Portland State University, and residents of the Tabor to the River (T2R) neighborhood, we conducted a survey to understand the role of civic ecology in green infrastructure projects. The survey results indicate a high interest …

A Brief Portrait Of Multimodal Transportation Planning In Oregon And The Path To Achieving It, 1890-1974, Carl Abbott, Sam Lowry

Urban Studies and Planning Faculty Publications and Presentations

This project was designed to outline transportation chapters of a planned written history of Oregon land use planning, written in ways that would make the transportation planning profession relevant to a popular audience. The writing would focus on stories from the profession, and on historical facts and events in Oregon transportation planning history that would surprise or enlighten popular reading audiences. Technology transfer would occur through publication of one or more written pieces of work.

The result is a topical and historical tale entitled "A Brief Portrait of Multimodal Transportation Planning in Oregon and the Path to Achieving It, 1890-1974." …