Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Portland State University

Discipline
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 2821 - 2850 of 6481

Full-Text Articles in Entire DC Network

Faculty Senate Monthly Packet March 2017, Portland State University Faculty Senate Mar 2017

Faculty Senate Monthly Packet March 2017, Portland State University Faculty Senate

Faculty Senate Monthly Packets

The March 2017 Monthly packet includes the February agenda and appendices and the Faculty Senate minutes and attachments from the meeting held February 2017.


El Capitalismo Y El Ciudadano Del Distrito Federal: Evolución De La Identidad En La Ciudad De México En Respuesta A Los Cambios Económicos En Dos Épocas Desde La Óptica De La Región Más Transparente De Carlos Fuentes Y Hotel Df De Guillermo Fadanelli, Douglas Mitchell L. Emison Mar 2017

El Capitalismo Y El Ciudadano Del Distrito Federal: Evolución De La Identidad En La Ciudad De México En Respuesta A Los Cambios Económicos En Dos Épocas Desde La Óptica De La Región Más Transparente De Carlos Fuentes Y Hotel Df De Guillermo Fadanelli, Douglas Mitchell L. Emison

University Honors Theses

Throughout the history of Mexico, the country's gradual involvement with capitalism has given rise to different eras of profound economic change which have consequently generated a variety of influences implicating changes in Mexican sociocultural identity. This work investigates two specific eras of novel capitalist engagement to determine the relationship between these economic changes and the evolution of Mexican identity using the urban environment of Mexico City as the socio-spatial center. The sociocultural effects of Mexico's post-revolutionary era of economic development from the 1940s to the 1960s will first be explored, followed by an investigation of the post-NAFTA / WTO era …


The Doormen, Sean Burns Mar 2017

The Doormen, Sean Burns

University Honors Theses

A creative exploration of the ways in which youth development is impacted by the advancements of modern communication technology.


Do Sarcastic Exchanges With Millennial Employees Influence Performance Appraisal Effectiveness?, Karissa Burright Mar 2017

Do Sarcastic Exchanges With Millennial Employees Influence Performance Appraisal Effectiveness?, Karissa Burright

University Honors Theses

This literature review explores the intricacies of sarcasm in the supervisor-employee relationship; particularly, it looks at sarcasm between supervisors and Millennial generation employees and possible ways it influences performance appraisal effectiveness. It focuses on five key intersections, as follows: sarcasm, trust, Leader-Member Exchange (LMX), performance appraisals, and the Millennial generation. The purpose is to identify and define these intersections, their implications, and the gaps in current research. Thus far, there is little research on these intersections, requiring this paper to link the overlapping areas between subjects. Therefore, this research builds upon the work or psychologists, sociologists, human resources management, and …


Root-Enhanced Infiltration In Stormwater Bioretention Facilities In Portland, Oregon, Ted David Hart Mar 2017

Root-Enhanced Infiltration In Stormwater Bioretention Facilities In Portland, Oregon, Ted David Hart

Dissertations and Theses

I evaluated the effectiveness of plant roots to increase infiltration rates within stormwater bioretention facilities (SBFs), roadside planter compartments that filter stormwater. SBFs attenuate harmful effects of stormwater by reducing peak flow and retaining pollutants, with increased infiltration that improves both these functions. Researchers have shown that roots can increase infiltration within greenhouse, lab, field, and test SBF settings. However, no researchers have yet measured either the extent to which different root characteristics can increase infiltration or the variation in root characteristics and their effect on infiltration rates among plant assemblages within currently functioning SBFs.

To determine if root-enhanced infiltration …


The Pacific Sentinel, March 2017, Portland State University. Student Publications Board Mar 2017

The Pacific Sentinel, March 2017, Portland State University. Student Publications Board

The Pacific Sentinel

Editor: Alex Skousen

Articles in this issue include:

  • Senate Bill 540;
  • Game On!;
  • Portland International Film Festival;
  • Tappin' Feet at Portland Jazz Festival;
  • Apple Invests in Artificial Intelligence;
  • Rookie Level Astrology


Video Frame Interpolation Via Adaptive Convolution, Simon Niklaus, Long Mai, Feng Liu Mar 2017

Video Frame Interpolation Via Adaptive Convolution, Simon Niklaus, Long Mai, Feng Liu

Computer Science Faculty Publications and Presentations

Video frame interpolation typically involves two steps: motion estimation and pixel synthesis. Such a two-step approach heavily depends on the quality of motion estimation. This paper presents a robust video frame interpolation method that combines these two steps into a single process. Specifically, our method considers pixel synthesis for the interpolated frame as local convolution over two input frames. The convolution kernel captures both the local motion between the input frames and the coefficients for pixel synthesis. Our method employs a deep fully convolu- tional neural network to estimate a spatially-adaptive con- volution kernel for each pixel. This deep neural …


Improving Antiretroviral Therapy Adherence In Resource-Limited Settings At Scale: A Discussion Of Interventions And Recommendations, Jessica E. Haberer, Lora Sabin, K. Rivet Amico, Catherine Orrell, Omar Galarraga, Alexander C. Tsai, Rachel C. Vreeman, Ira Wilson, Nadia A. Sam-Agudu, Terrence F. Blaschke, Bernard Vrijens, Claude Mellins, Robert H. Remien, Sheri D. Weiser, Elizabeth Lolwenthal, Michael J. Stirratt, Papa Salif Sow, Bruce Thomas, Nathan Ford, Edward Mills, Richard Lester, Jean B. Nachega, Bosco M. Bwana, Fred Ssewamala, Lawrence Mbuagbaw, Paula Munderi, Elvin H. Geng, David Bangsberg Mar 2017

Improving Antiretroviral Therapy Adherence In Resource-Limited Settings At Scale: A Discussion Of Interventions And Recommendations, Jessica E. Haberer, Lora Sabin, K. Rivet Amico, Catherine Orrell, Omar Galarraga, Alexander C. Tsai, Rachel C. Vreeman, Ira Wilson, Nadia A. Sam-Agudu, Terrence F. Blaschke, Bernard Vrijens, Claude Mellins, Robert H. Remien, Sheri D. Weiser, Elizabeth Lolwenthal, Michael J. Stirratt, Papa Salif Sow, Bruce Thomas, Nathan Ford, Edward Mills, Richard Lester, Jean B. Nachega, Bosco M. Bwana, Fred Ssewamala, Lawrence Mbuagbaw, Paula Munderi, Elvin H. Geng, David Bangsberg

OHSU-PSU School of Public Health Faculty Publications and Presentations

INTRODUCTION:

Successful population-level antiretroviral therapy (ART) adherence will be necessary to realize both the clinical and prevention benefits of antiretroviral scale-up and, ultimately, the end of AIDS. Although many people living with HIV are adhering well, others struggle and most are likely to experience challenges in adherence that may threaten virologic suppression at some point during lifelong therapy. Despite the importance of ART adherence, supportive interventions have generally not been implemented at scale. The objective of this review is to summarize the recommendations of clinical, research, and public health experts for scalable ART adherence interventions in resource-limited settings.

METHODS:

In …


Each Medium Tells A Different Story: The Effect Of Message Channel On Narrative Persuasion, Nathan Walter, Sheila T. Murphy, Lauren B. Frank, Lourdes Baezconde-Garbanati Mar 2017

Each Medium Tells A Different Story: The Effect Of Message Channel On Narrative Persuasion, Nathan Walter, Sheila T. Murphy, Lauren B. Frank, Lourdes Baezconde-Garbanati

Communication Faculty Publications and Presentations

Limited attention has been given to the medium of story presentation in this process of narrative persuasion. The present study (N = 243) fills this gap by directly comparing narrative involvement across print and audiovisual versions of the same cervical cancer-related story. The mediation analysis revealed that exposure to an audiovisual narrative was associated with higher levels of cognitive and emotional involvement than exposure to the exact same narrative in its printed form. Yet the higher levels of transportation in the audiovisual condition came at a price of enhancing psychological reactance, eliminating the relative advantage of the film narrative.


Pro-Life Pdx! An Exploration Of Values And Feminism In Portland's Pro-Life Community, Belen H. Chapin Mar 2017

Pro-Life Pdx! An Exploration Of Values And Feminism In Portland's Pro-Life Community, Belen H. Chapin

University Honors Theses

In a study presented by the CDC in 2006, 49% of pregnancies reported were unintended (Finer et al. 2011), accounting for almost half of the US population of women. Debates surrounding the use of abortion services by women in dealing with unintended pregnancies have entered mainstream media in the form of discussions about the usefulness of Planned Parenthood, and whether or not Planned Parenthood should be defunded by the government. On December 3, 2015, the Senate "passed legislation to defund Planned Parenthood... with a 52-47 vote" (Chang 2015), illustrating the divide in the US over abortion politics, and the public’s …


The Nonprofit Nerd (March 2017), The Nonprofit Institute At Portland State University Mar 2017

The Nonprofit Nerd (March 2017), The Nonprofit Institute At Portland State University

The Nonprofit Institute Newsletter

This month’s theme is Evidence‐Based Budgeting!

Whether you’re a newly‐minted nonprofit employee or a seasoned executive director, chances are good that you are impacted by your organization’s budget process. And if you’re like many nonprofit professionals, you might now be in the midst of building a program or organizational budget for your upcoming fiscal year. While there is no universally right or wrong way to write a budget, you can save yourself some headaches later by using good data and information to inform your planning.

This month, we explore the role of data in budget planning! Let the resources …


Modeling And Analyzing The Impact Of Advanced Technologies On Livability And Multimodal Transportation Performance Measures In Arterial Corridors: Phase 2, Miguel A. Figliozzi, Chawalit Tipagornwong Mar 2017

Modeling And Analyzing The Impact Of Advanced Technologies On Livability And Multimodal Transportation Performance Measures In Arterial Corridors: Phase 2, Miguel A. Figliozzi, Chawalit Tipagornwong

TREC Final Reports

Transportation corridors are complex systems. Tradeoffs, particularly in terms of traffic mobility, transit performance, accessibility and pedestrian interactions, are not well understood.When the focus is on motorized vehicle mobility and throughput, high traffic or vehicle speeds are desirable because at high speeds more vehicles can flow per unit of time and roadway section. However, high traffic/vehicles speeds are not desirable for pedestrians who have to cross urban arterials. In particular, pedestrians can be highly vulnerable at unsignalized, marked crosswalks where pedestrians have the right of way but where drivers’ yield rates are significantly lower than at signalized intersections. Pedestrians are …


Program Sustainability: Hearing Loss And Tinnitus Prevention In American Indian Communities, William Hal Martin, Judith L. Sobel, Susan E. Griest, Linda C. Howarth, Thomas Becker Mar 2017

Program Sustainability: Hearing Loss And Tinnitus Prevention In American Indian Communities, William Hal Martin, Judith L. Sobel, Susan E. Griest, Linda C. Howarth, Thomas Becker

Speech and Hearing Sciences Faculty Publications and Presentations

INTRODUCTION: An important goal of any health promotion effort is to have it maintained in delivery and effectiveness over time. The purpose of this study was to establish a community-based noise-induced hearing loss and tinnitus prevention program in three different types of American Indian communities and evaluate them for evidence of long-term sustainability.

METHODS: The target population was fourth- and fifth-grade students from three different models of American Indian communities. The evidenced-based Dangerous Decibels® program was adapted to include local media, classroom education, family and community outreach, and web-based activities. Sustainability was attempted by promoting funding stability, political …


Involving Literacy And Technology: An Action Research Study To Improve Teacher Candidates’ Practice, Todd Cherner, Kristal Curry Mar 2017

Involving Literacy And Technology: An Action Research Study To Improve Teacher Candidates’ Practice, Todd Cherner, Kristal Curry

Curriculum and Instruction Faculty Publications and Presentations

As reflected in the new generation of “college- and career-ready” standards, developing students’ literacy abilities has become an educational initiative. In addition, software developers are continually releasing a range of educational website, apps, and programs intended to support student learning. The challenge then becomes how teachers can use these evolving instructional technologies to develop their students’ literacy abilities by combining them with their content and pedagogical knowledge. In this action research project, two teacher educators set out to study how their candidates used instructional technology during their internship for these purposes. In this article, the researchers will provide a background …


Protection Of The Queuosine Biosynthesis Enzyme Quef From Irreversible Oxidation By A Conserved Intramolecular Disulfide, Adeba Mohammad, Adriana Bon Ramos, Bobby W.K. Lee, Spencer William Cohen, Maryam K. Kiani, Dirk Iwata-Reuyl, Boguslaw Stec, Manal A. Swairjo Mar 2017

Protection Of The Queuosine Biosynthesis Enzyme Quef From Irreversible Oxidation By A Conserved Intramolecular Disulfide, Adeba Mohammad, Adriana Bon Ramos, Bobby W.K. Lee, Spencer William Cohen, Maryam K. Kiani, Dirk Iwata-Reuyl, Boguslaw Stec, Manal A. Swairjo

Chemistry Faculty Publications and Presentations

QueF enzymes catalyze the nicotinamide adenine dinucleotide phosphate (NADPH)-dependent reduction of the nitrile group of 7-cyano-7-deazaguanine (preQ0) to 7-aminomethyl-7-deazaguanine (preQ1) in the biosynthetic pathway to the tRNA modified nucleoside queuosine. The QueF-catalyzed reaction includes formation of a covalent thioimide intermediate with a conserved active site cysteine that is prone to oxidation in vivo. Here, we report the crystal structure of a mutant of Bacillus subtilis QueF, which reveals an unanticipated intramolecular disulfide formed between the catalytic Cys55 and a conserved Cys99 located near the active site. This structure is more symmetric than the substrate-bound structure and exhibits major rearrangement of …


Altruistic Punishment Can Help Resolve Tragedy Of The Commons Social Dilemmas, Garrison W. Greenwood Feb 2017

Altruistic Punishment Can Help Resolve Tragedy Of The Commons Social Dilemmas, Garrison W. Greenwood

Electrical and Computer Engineering Faculty Publications and Presentations

Social dilemmas force individuals to choose between cooperation, which benefits a group, and defection which benefits the individual. The unfortunate outcome in most social dilemmas is mutual defection where nobody benefits. Researchers frequently use mathematical games such as public goods games to help identify circumstances that might improve cooperation levels within a population. Altruistic punishment has shown promise in these games. Many real-world social dilemmas are expressed via a tragedy of the commons metaphor. This paper describes an investigation designed to see if altruistic punishment might work in tragedy of the commons social dilemmas. Simulation results indicate not only does …


Faculty Senate Monthly Packet February 2017, Portland State University Faculty Senate Feb 2017

Faculty Senate Monthly Packet February 2017, Portland State University Faculty Senate

Faculty Senate Monthly Packets

The February 2017 Monthly packet includes the February agenda and appendices and the Faculty Senate minutes and attachments from the meeting held January 2017.


The Pacific Sentinel, February 2017, Portland State University. Student Publications Board Feb 2017

The Pacific Sentinel, February 2017, Portland State University. Student Publications Board

The Pacific Sentinel

Editor: Alex Skousen

Articles in this issue include:

  • Inauguration Day;
  • Sanctuary Campus;
  • US vs. US;
  • First Thursday;
  • Pellegrino;
  • Sacred Breath;
  • Arvie Smith;
  • Gary Hirsch;
  • Man in the High Castle;
  • FFXV;
  • Heavyweight


Cultivating (A) Sustainability Capital: Urban Agriculture, Eco-Gentrification, And The Uneven Valorization Of Social Reproduction, Nathan Mcclintock Feb 2017

Cultivating (A) Sustainability Capital: Urban Agriculture, Eco-Gentrification, And The Uneven Valorization Of Social Reproduction, Nathan Mcclintock

Urban Studies and Planning Faculty Publications and Presentations

Urban agriculture (UA), for many activists and scholars, plays a prominent role in food justice struggles in cities throughout the Global North, a site of conflict between use and exchange values, and rallying point for progressive claims to the right to the city. Recent critiques, however, warn of its contribution to gentrification and displacement. The use/exchange value binary no longer as useful an analytic as it once was, geographers need to better understand UA’s contradictory relations to capital, particularly in the neoliberal Sustainable City. To this end, I bring together feminist theorizations of social reproduction, Bourdieu’s “species of capital”, and …


When Erm Met Alma: The Intricacies Of Content Management In A Shared Consortia Landscape, Siôn Romaine, Jian Wang Feb 2017

When Erm Met Alma: The Intricacies Of Content Management In A Shared Consortia Landscape, Siôn Romaine, Jian Wang

Library Faculty and Staff Publications and Presentations

In 2013, after nearly two decades of operating in a distributed legacy Integrated Library System (ILS) environment on local servers, the Orbis Cascade Alliance, a consortium of public and private academic libraries in Washington, Oregon, and Idaho, began a two-year-long process to migrate its 37 members to a shared implementation of Ex Libris's cloud-based Alma library management system (LMS) and Primo discovery interface. Although much has been written on electronic resource management (ERM) functionality at an institution level, little has been written on serials and ERM functionality and workflows within a shared consortial environment. This article discusses the challenges and …


Divergent Trends In Ecosystem Services Under Different Climate-Management Futures In A Fire-Prone Forest Landscape, Joshua S. Halofsky, Jessica E. Halofsky, Miles A. Hemstrom, Anita T. Morzillo, Xiaoping Zhou, Daniel C. Donato Feb 2017

Divergent Trends In Ecosystem Services Under Different Climate-Management Futures In A Fire-Prone Forest Landscape, Joshua S. Halofsky, Jessica E. Halofsky, Miles A. Hemstrom, Anita T. Morzillo, Xiaoping Zhou, Daniel C. Donato

Institute for Natural Resources Publications

While ecosystem services and climate change are often examined independently, quantitative assessments integrating these fields are needed to inform future land management decisions. Using climate-informed state-and-transition simulations, we examined projected trends and trade-offs for a suite of ecosystem services under four climate change scenarios and two management scenarios (active management emphasizing fuel treatments and no management other than fire suppression) in a fire-prone landscape of dry and moist mixed-conifer forests in central Oregon, USA. Focal ecosystem services included fire potential (regulating service), timber volume (provisioning service), and potential wildlife habitat (supporting service). Projections without climate change suggested active management in …


North Douglas County Community Needs Health Assessment (Phase 2), Callie H. Lambarth, Diane Reid, Beth L. Green Feb 2017

North Douglas County Community Needs Health Assessment (Phase 2), Callie H. Lambarth, Diane Reid, Beth L. Green

Early Childhood

Beginning in August 2016, Phase 2 of the North Douglas County (NDC) Community Health Needs Assessment (CHNA) built on work completed in the Phase 1 planning process, and engaged the communities of Drain, Elkton, and Yoncalla, Oregon in the development and administration of a regional health services survey. The purpose of the survey was to learn from families with children ages 0-8 in the NDC region in order to:

  • Identify service needs across a range of health service types, e.g., dental care, immunizations, prenatal care, well-child care, primary care, and mental health;
  • Identify barriers to access;
  • Prioritize the programs and …


Evaluation Of An Electric Bike Pilot Project At Three Employment Campuses In Portland, Oregon, John Macarthur, Nicholas Kobel, Jennifer Dill, Zakari Mumuni Feb 2017

Evaluation Of An Electric Bike Pilot Project At Three Employment Campuses In Portland, Oregon, John Macarthur, Nicholas Kobel, Jennifer Dill, Zakari Mumuni

TREC Final Reports

Oregon, and Portland in particular, is internationally known for its love for bikes. Not only does the region have some of the highest bike ridership but the Oregon bike manufacturing industry is quickly growing. Oregon’s electric bike (e-bike) market is also growing but little data are available on the potential market and e-bike user behavior and interest. Only a limited amount of research has explored the potential new market segments for e-bikes and the economic, operational, safety, and transportation issues surrounding e-bikes in the United States. This report examines the results of an electric bike (e-bike) pilot project, which took …


Webinar: Improving Walkability At Signalized Intersections With Signal Control Strategies, Edward J. Smaglik, Sirisha Murthy Kothuri Jan 2017

Webinar: Improving Walkability At Signalized Intersections With Signal Control Strategies, Edward J. Smaglik, Sirisha Murthy Kothuri

TREC Webinar Series

The goal of signal timing at an intersection should be to maximize efficiency for all users. In many jurisdictions, however, traffic signals are timed mostly with the goal of reducing vehicular delay.

Other road users, such as pedestrians, deserve similar focus. In legacy transportation systems, pedestrians experience delays much in excess of those that would be deemed acceptable for a motor vehicle at the same location.

Excessive delay can lead to pedestrian frustration, non-compliance and ultimately decreased safety.

In the North American context, implementation of strategies to address pedestrian service varies greatly across jurisdictions, and there has been limited research …


Far-Red And Near-Infrared Seminaphthofluorophores For Targeted Pancreatic Cancer Imaging, Lei Wang, Connor W. Barth, Martha Sibrian-Vazquez, Jorge O. Escodedo, Mark Lowry, John Muschler, Haiyan Li, Summer L. Gibbs, Robert Strongin Jan 2017

Far-Red And Near-Infrared Seminaphthofluorophores For Targeted Pancreatic Cancer Imaging, Lei Wang, Connor W. Barth, Martha Sibrian-Vazquez, Jorge O. Escodedo, Mark Lowry, John Muschler, Haiyan Li, Summer L. Gibbs, Robert Strongin

Chemistry Faculty Publications and Presentations

Molecular probes that selectively highlight pancreatic cancer (PC) tissue have the potential to improve pancreatic ductal adenocarcinoma (PDAC) margin assessment through the selective highlighting of individual PC cells. Herein, we report a simple and unique family of systematically modified red and near-infrared fluorescent probes that exhibit a field-effect-derived redshift. Two of thirteen probes distributed to the normal mouse pancreas following systemic administration. One selectively accumulated in genetically modified mouse models of PDAC. The probe exhibited intracellular accumulation and enabled visualization of four levels of the structure, including the whole organ, resected tissue, individual cells, and subcellular organelles. In contrast to …


Factors Affecting Snowy Plover Chick Survival In A Managed Population, Stephen J. Dinsmore, Eleanor P. Gaines, Scott F. Pearson, David J. Lauten, Kathleen J. Castelein Jan 2017

Factors Affecting Snowy Plover Chick Survival In A Managed Population, Stephen J. Dinsmore, Eleanor P. Gaines, Scott F. Pearson, David J. Lauten, Kathleen J. Castelein

Institute for Natural Resources Publications

Understanding survival of precocial chicks in the period immediately following hatching has important conservation implications because population growth is often sensitive to post-hatching survival. We studied federally threatened Western Snowy Plover (Charadrius nivosus nivosus) broods at the northern limit of their range in coastal Oregon (n ¼ 1,157) and Washington (n ¼ 84) from 1991 to 2011 in an attempt to understand seasonal, annual, and spatial patterns of chick survival. In Oregon, plover chick survival increased with age, varied between sites, and was greater at sites with predator management. The mean probability of surviving from hatch to fledging at 28 …


Charles A. Moose: Race, Community Policing, And Portland's First African American Police Chief, Douglas Jon Kenck-Crispin Jan 2017

Charles A. Moose: Race, Community Policing, And Portland's First African American Police Chief, Douglas Jon Kenck-Crispin

Dissertations and Theses

In 1993, Charles Moose became Portland, Oregon's first black police chief. A nationally recognized student of the developing theories of community policing, Chief Moose's promotion was also hoped to help strengthen the diversity of the Portland Police Bureau. Ultimately, Portlanders were unable to look past Moose's public outbursts and demeanor and recognize his accomplishments. As a city, they missed an opportunity.

This thesis uses transcripts of speeches and policy papers to present some political history to the reader, but also letters to the mayor's office, letters to the editor and the like to consider the social history of 1990's Portland. …


Leyendas Y Arquetipos Del Romanticismo Español, Segunda Edición, Robert Sanders Jan 2017

Leyendas Y Arquetipos Del Romanticismo Español, Segunda Edición, Robert Sanders

PDXOpen: Open Educational Resources

Leyendas y arquetipos del Romanticismo español is an introduction to nineteenth-century Spanish literature with a thematic focus on legends and archetypes. It presents Romanticism in the context of nineteenth-century literary and social movements. It is designed as a first anthology for intermediate Spanish students at American universities. Although brief, it includes poetry, drama in verse and short story. The works have been selected for their literary interest and the social importance of their themes. They are all by canonical authors.

New for the Second Edition: over 4000 vocabulary, historical and cultural annotations to facilitate reading and comprehension.

The Prologue …


Evaluating Simplistic Methods To Understand Current Distributions And Forecast Distribution Changes Under Climate Change Scenarios: An Example With Coypu (Myocastor Coypus), Catherine S. Jarnevich, Nicholas E. Young, Trevor R. Sheffels, Jacoby Carter, Mark D. Sytsma, Colin Talbert Jan 2017

Evaluating Simplistic Methods To Understand Current Distributions And Forecast Distribution Changes Under Climate Change Scenarios: An Example With Coypu (Myocastor Coypus), Catherine S. Jarnevich, Nicholas E. Young, Trevor R. Sheffels, Jacoby Carter, Mark D. Sytsma, Colin Talbert

Environmental Science and Management Faculty Publications and Presentations

Invasive species provide a unique opportunity to evaluate factors controlling biogeographic distributions; we can consider introduction success as an experiment testing suitability of environmental conditions. Predicting potential distributions of spreading species is not easy, and forecasting potential distributions with changing climate is even more difficult. Using the globally invasive coypu (Myocastor coypus [Molina, 1782]), we evaluate and compare the utility of a simplistic ecophysiological based model and a correlative model to predict current and future distribution. The ecophysiological model was based on winter temperature relationships with nutria survival. We developed correlative statistical models using the Software for Assisted Habitat Modeling …


Out In "The Numbers": Youth And Gang Violence Initiatives And Uneven Development In Portland's Periphery, Dirk Kinsey Jan 2017

Out In "The Numbers": Youth And Gang Violence Initiatives And Uneven Development In Portland's Periphery, Dirk Kinsey

Dissertations and Theses

Incidence of youth and gang violence in the Portland, Oregon metro area has increased dramatically over the past five years. This violence has recently become more spatially diffuse, shifting outwards from gentrified, inner city neighborhoods, towards the city's periphery. These incidents exist within the context of a shifting regional political economy, characterized by a process of gentrification associated displacement and growing, and distinctly racialized and spatialized, inequalities. While gang researchers have long argued a corollary between the emergence of gangs and economically and culturally polarized urban landscapes, the ongoing suburbanization of poverty in American cities suggests a new landscape of …