Digital Commons Network^™

Bicycle-Friendly Policies, Michael Lewyn

Scholarly Works

A review of Copenhagenize by Mikael Colville-Andersen

Explaining Market Urbanism, Michael Lewyn

Scholarly Works

Compares Market Urbanism to New Urbanism and Landscape Urbanism

The Opiod Epidemic: Clinical Dental Update, Matthew Hearing

Biomedical Sciences Faculty Research and Publications

No abstract provided.

What Does The Fos Say? Using Fos-Based Approaches To Understand The Contribution Of Stress To Substance Use Disorders, Jayme R. Mcreynolds, John P. Christianson, Jordan M. Blacktop, John Mantsch

Biomedical Sciences Faculty Research and Publications

Despite extensive research efforts, drug addiction persists as a largely unmet medical need. Perhaps the biggest challenge for treating addiction is the high rate of recidivism. While many factors can promote relapse in abstinent drug users, the contribution of stress is particularly problematic, as stress is uncontrollable and pervasive in the lives of those struggling with addiction. Thus, understanding the neurocircuitry that underlies the influence of stress on drug seeking is critical for guiding treatment. Preclinical research aimed at defining this neurocircuitry has, in part, relied upon the use of experimental approaches that allow visualization of cellular and circuit activity …

17Β-Estradiol Potentiates The Reinstatement Of Cocaine Seeking In Female Rats: Role Of The Prelimbic Prefrontal Cortex And Cannabinoid Type-1 Receptors, Elizabeth M. Doncheck, Luke A. Urbanik, Margot C. Debaker, Laura M. Barron, Gage T. Liddiard, Jennifer J. Tuscher, Karyn M. Frick, Cecilia J. Hillard, John Mantsch

Biomedical Sciences Faculty Research and Publications

Clinical observations imply that female cocaine addicts experience enhanced relapse vulnerability compared with males, an effect tied to elevated estrogen phases of the ovarian hormone cycle. Although estrogens can enhance drug-seeking behavior, they do not directly induce reinstatement on their own. To model this phenomenon, we tested whether an estrogen could augment drug-seeking behavior in response to an ordinarily subthreshold reinstatement trigger. Following cocaine self-administration and extinction, female rats were ovariectomized to isolate estrogen effects on reinstatement. Although neither peak proestrus levels of the primary estrogen 17β-estradiol (E2; 10 μg/kg, i.p., 1-h pretreatment) nor a subthreshold cocaine dose …

An Emerging Contradiction: Non-Farm Activity Within Exclusive Farm Use Zones, Nicholas Chun

Metroscape

This installment of the Periodic Atlas of the Metroscape examines Oregon land use policy and non-farm use activities on agricultural lands that are zoned for exclusive farm use.

Something Borrowed... Total Annual Circulation Of All Library Materials, Including Renewals, Per Capita, By County, Portland Msa, 2001-2016, Institute Of Portland Metropolitan Studies

Metroscape

This installment of Indicators of the Metroscape examines library usage data in the Portland Metropolitan Area.

The Landscape: Cully Neighborhood, Eavan Moore

Metroscape

This installment of The Landscape focuses on Portland's Cully neighborhood, briefly reviewing its history, demographic trends, and current planning efforts.

Growing Deeper Roots: Toward Resilient Urban Forests, Sachi Arakawa

Metroscape

This article examines the urban forest in Portland, Oregon, as part of a complex system that requires management, education and outreach to remain healthy and sustainable. It also reviews the economic and ecological benefits of a health urban forest.

The Nuts And Bolts Of Broadband, Institute Of Portland Metropolitan Studies

Metroscape

This Sidebar looks at defining broadband internet access and gives a basic introduction to how it works as well as its implementation at the local level.

Effects Of A Peer-Assisted Physical Activity Program On Depression And Anxiety In College Students, Crystal Stroud

Cal Poly Humboldt theses and projects

The purpose of this qualitative study was to examine the effects of a peer-assisted, self-selected physical activity program on depression and anxiety in students at a four-year university, and to explore the various possible mechanisms by which depression and anxiety were affected. These mechanisms included physical activity, self-efficacy, relatedness, competence, and autonomy. A secondary purpose was to examine the benefits of participation for the physical activity buddies who provided the peer-support. In-depth interviews were conducted with three program participants with depression and/or anxiety, six physical activity buddies who supported the participants, and three referring professional healthcare providers. A qualitative data …

Stress And Frailty In Medieval Prussia: Interpretations From Skeletal Remains At Bezławki, Katherine E. Gaddis

Cal Poly Humboldt theses and projects

Health is routinely studied in living populations using quantifiable measurements such as allostatic load and frailty. In recent years, particularly since the introduction of the osteological paradox, there has been increased interest among bioarchaeologists in how these concepts can be applied to the study of health in past populations. Although health is not directly observable in skeletal remains, assessment of frailty can be useful for understanding the implications of long-term exposures to stress on well-being and mortality. This study builds upon past research in this area by incorporating commonly observed indicators of physiological stress, such as dental disease and osteoarthritis, …

What's So Great About The Alternative? Understanding Motivations For Participating In Humboldt County Alternative Food Networks, Jessica Smith

Cal Poly Humboldt theses and projects

Participation in alternative food networks such as farmer’s markets, community supported agriculture (CSA), and community gardens has become an increasingly popular way to express opposition to the current industrial food system. Food justice scholars often criticize alternative food networks for operating within a neoliberal economic framework and suggest that structural inequalities within the food system are not able to be addressed by alternative food networks in the same way they are through food justice or food sovereignty. The goal of this research is to discover individual motivation behind participation in local alternative food networks in Humboldt County. I am curious …

Technical Feasibility And Life Cycle Cost Assessment Of A Photovoltaic Array On Trinity Dam, Trinity County, Ca, Caleb Aaron Patrick

Cal Poly Humboldt theses and projects

Public lands owned by the Bureau of Land Management are increasingly being used for photovoltaic (PV) system development. Although numerous policies support PV deployment on public lands, those managed by the Bureau of Reclamation have not been considered for PV development. Hydro-electric embankment dams, both publicly and privately owned, may have the potential to be development sites for distributed PV systems. A technical feasibility report was conducted for a case study of a PV installation on Trinity Dam, Trinity County, CA, and found embankment dams could potentially be feasible development sites. A mounting analysis found that a concrete slab reinforced …

Differences In Hair Significance Among Black And White Women: An Exploratory Study On Black Hair, Yasmine S. Keen

Cal Poly Humboldt theses and projects

In Western culture, standards of beauty are often based on European characteristics that Black women are inherently unable to meet. African American history and anecdotal accounts suggest that hair in particular can have a significant impact on the perception and body image of Black women, though whether that impact is positive or negative is not clear. The current study takes a quantitative approach to examining women’s relationship with their hair. Black women (n = 146) and White women (n = 1,116) participated in an anonymous online survey regarding time devoted to hair maintenance, money spent on hair upkeep, …

Post-Fire Regeneration And Fuel Succession Patterns In Hesperocyparis Bakeri Forests, Bret Anthony Mcnamara

Cal Poly Humboldt theses and projects

Climate change is predicted to cause widespread redistribution of suitable tree habitats, as well as increase the size and frequency of wildfires in the western United States during the forthcoming century. Rare serotinous conifers may have heightened sensitivity to the impacts of both fire regime and climate shifts for multiple reasons. First, the rapid spatial rearrangement of suitable habitat will disproportionately affect trees with constrained seed dispersal capabilities, and limited dispersal is a trait associated with some genera of serotinous trees. Second, a number of serotinous conifers depend on fire disturbances for regeneration, though with the expected increase in annual …

The Effects Of Descending Resistance Sets Compared To Constant Resistance Sets On The Volume Completed During A High Intensity Free Weight Back Squat Exercise, Jason E. Meyer

Cal Poly Humboldt theses and projects

Improving anabolic hormone production is an important training adaptation in resistance training; however, no previous research has developed optimized descending resistance sets to increase training volume. The purpose of this research was to compare two different loading protocols of constant resistance sets (CRS) and descending resistance sets (DRS) on the free weight back squat. Eleven resistance trained male participants (mean ± SD, age = 22 ± 3 yr, and back squat 1RM ratio (1RM/body weight) = 1.65 ± 0.2) completed 4 experimental sessions over 2 weeks, during which 4 sets of the back squat were performed with 85% 1RM and …

Religiosity And Feminism: Navigating Gender Constructions And Ideologies, Molly Noble

Cal Poly Humboldt theses and projects

Religious women and feminist women are large demographics around the world, but relatively little is known about women who identify as both religious and feminist. In this thesis I ask: How do religious women hold feminist ideals when religion is seen by many feminists as an inherently patriarchal and oppressive institution? How does the interplay of their feminism and religiosity affect their life decisions and how they worship? How does having a religious feminist identity affect interactions with people in their lives? To address these issues I interviewed eleven (11) religious feminist women from a small rural community in Northern …

Religion, Language, Gender, And Culture: Challenges Experienced By Saudi International Students In Humboldt County, Dafer Sahab Alqarni

Cal Poly Humboldt theses and projects

The effects of culture shock on individuals living abroad are well known. Less well known, however, are the specific experiences, needs, and challenges of Saudi Arabian students studying internationally, especially in Western nations. In this study, I used qualitative research to explore the needs and difficulties of Saudi international students in Humboldt County and at Humboldt State University (HSU). Using semi-structured interviews with eight participants, diversified by gender and marital status, I provide a holistic view of HSU Saudi international students’ experiences and challenges which could help to understand Saudi students’ experiences abroad generally, and in Humboldt County specifically. I …

Negatively Correlated Abundance Suggests Competition Between Red Abalone (Haliotis Rufescens) And Red Sea Urchins (Mesocentrotus Franciscanus) Inside And Outside Established Mpas Closed To Commercial Sea Urchin Harvest In Northern California, Johnathan Centoni

Cal Poly Humboldt theses and projects

Red abalone and sea urchins are both important herbivores that potentially compete with each other for resources like food and space along the California coast. Red abalone supported a socioeconomically important recreational fishery during this study (which was closed in 2018) and red sea urchins support an important commercial fishery. Both red sea urchins and red abalone feed on the same macroalgae (including Pterygophora californica, Laminaria setchellii, Stephanocystis osmundacea, Costaria costata, Alaria marginata, Nereocystis leutkeana), and a low abundance of this food source during the period of this project may have created a highly competitive environment for urchins and …

Hobby Preferences And Physical Activity Participation Among Children With And Without Autism Spectrum Disorder, Scott M. Russell

Cal Poly Humboldt theses and projects

BACKGROUND: Children diagnosed with Autism Spectrum Disorder (ASD) exhibit low physical activity levels and are at an increased risk for health problems related to sedentary behaviors. Hobby preferences have been shown to influence physical activity participation. PURPOSE: The purpose of this study is to examine the hobby preferences of children with ASD and determine if there are differences depending on the children’s physical activity level and the nature of their preferred activities. A secondary purpose is to describe the hobby preferences of children with ASD. METHODS: Participants include 98 nine-year-old children (with and without ASD) from the National Growing up …

The Entangled Student: Identity Control Theory And Student Identity, Joshua Smith

Cal Poly Humboldt theses and projects

This study examines the strengths and opportunities in applying the frame of Identity Control Theory (ICT) to understanding the first-year experiences of students in higher education. Through thirty-one semi-structured interviews with undergraduate and graduate students during their first term in the program of study, different components of the ICT model are explored and tested. Results indicate ICT is modestly effective in explaining the first term experience for these students, but could be enhanced through further development in the areas of identity connectedness, identity exploration and resources/resilience. Recommendations for higher education programming and suggestions for a potential research agenda for ICT …

Utility-Scale Solar Photovoltaic Hosting Potential Of Historic Mill Sites In Humboldt County, California, Michael Avcollie

Cal Poly Humboldt theses and projects

The adoption of Redwood Coast Energy Authority’s (RCEA’s) Community Choice Energy program in May of 2017 across Humboldt County has sparked interest in locally produced energy from solar photovoltaics (PV). RCEA has a goal of bringing 5 Megawatts (MW) of local, utility-scale, solar PV under contract by 2018 and 15 MW by 2023. Humboldt County’s former mill sites offer features that make them suitable for hosting PV development. This study performed an inventory and analysis of these sites to answer two questions: Can Humboldt County’s former mill sites provide the hosting capacity for15 MW of local, utility-scale solar PV? Which …

Impacts Of The Changes Made To Solar Net Metering By Northern California Community Choice Aggregators, Steven Benton Shoemaker

Cal Poly Humboldt theses and projects

When Northern California Community Choice Aggregation Programs (CCAs) took over the role of sourcing electricity from the incumbent utility (Pacific Gas and Electric, or PG&E), they also made changes to how solar customers were treated. In the Humboldt, Sonoma, Marin, and San Mateo County regions, solar customers that were net exporters of electricity received an additional $0.01/kWh credit on the generation portion of their bill. This policy is inherited from one CCA to another, and, given the CCAs are projected to serve 18 million Californians by 2020 (Cal CCA, 2018), understanding its impact - on a solar customer's bottom line …

Children's Mental Health Care Needs Assessment In Six Rural Northern California Counties, Brandi L. Goodspeed

Cal Poly Humboldt theses and projects

Mental health problems affect millions of children and adolescents each year. Furthermore, the prevalence of these difficulties may be higher among children living in rural communities. Primary care providers are playing a larger role in the treatment of mental health challenges in youth. The present study examined the experiences and knowledge of rural parents and primary care providers regarding children’s mental health care.

While providers practicing in six counties were invited, all respondents (N = 19) practiced in Humboldt County. Parents were recruited through schools which agreed to distribute the survey. Ten principals in four counties agreed, including Del …

The Positive Effects On Attitude Among High School Students Towards Students With Autism Spectrum Disorder, Mario Castillo-Urbina

Cal Poly Humboldt theses and projects

Inclusion in the classroom requires that the local education agency provide services (i.e., direct, related) to support each student’s needs. The philosophy guiding inclusion is that these services will allow each student to keep pace or catch-up with his or her typically developing peers (Elkins, Van Kraayenoord, & Jobling, 2003). Students’ attitudes towards their peers with disabilities have been researched and reported through the years however, little work has examined these attitudes in a physical education setting (Archie & Sherrill, 1989; Block & Malloy, 1998; Block & Zeman, 1996; Tripp, French, & Sherrill, 1995). Researchers have reported that individuals avoid …

We Break Our Bodies To Save Our Souls: Identity Construction Through The Participation In Flat Track Roller Derby, Torisha Stone

Cal Poly Humboldt theses and projects

While sociology of sport has been growing steadily over the last few decades, with an increased focus on how sports participation allow for active identity construction, research on roller derby is incredibly limited. I argue that research on roller derby provides an important window for understanding gendered sports construction and participation. Derby also provides a space where identities are created through performance in addition to the creation of unique personas or in some cases primary identities. In this study, I conducted 15 semi-structured open ended interviews using non-probability and snowball sampling techniques of a rural roller derby league as well …

Using Functional Infrared Thermal Imaging To Measure Stress Responses, Julia Tenaya Kandus

Cal Poly Humboldt theses and projects

The stress response reflects a coordinated pattern of physiological changes that serves the adaptive function of increasing an organism’s ability to cope with situations that require action or defense. The changes in blood flow associated with the stress response may be detectable using the relatively new research technique of functional infrared thermal imaging (fITI). The present study was designed to determine the time-course and topography of temperature changes in human faces during the experience of a stressor. Infrared images were taken from 29 female participants while they completed the mental arithmetic component of the Trier Social Stress Test (TSST). Continuously …

Learning From A Restoration Innovator: Building Community Capitals And Resilience Through The Restoration Economy, Marisa Formosa

Cal Poly Humboldt theses and projects

In the Mattole River Watershed of northern California, in response to a history of resource extraction, poor land-management practices, and the back-to-the-land movement, a restoration economy has emerged. This economy includes nonprofit watershed groups, individual landowners, local residents, state and federal agencies, foundations and for-profit consulting firms. Utilizing both qualitative and quantitative research methods, this study seeks to reveal how the 40-year community-based restoration economy in the Mattole Watershed has contributed to community well-being and local livelihoods, and how it has changed over time. Results suggest the restoration economy has contributed to a resilient and vibrant community and has enhanced …

Legacies Of Industrial Contamination: Voices Of Resistance In White Lake, Michigan, Elizabeth A. Revord

Cal Poly Humboldt theses and projects

This research presents a case study of resistance to contamination from three large chemical plants by activists in the communities of Montague and Whitehall located on White Lake, Michigan. Although clean-up efforts have met state and federal guidelines for brownfield and Superfund sites, the people and community of White Lake have continued to be vigilant regarding environmental protection and harbor many concerns regarding their future and redevelopment of sites that are likely still contaminated.

The connection to place and sense of community that the residents of White Lake honor is the foundation of their resistance. Using data collected from semi-structured …