Digital Commons Network^™

Securing Food And Livelihoods: Opportunities And Constraints To Sustainably Enhancing Household Food Production In Santa Familia Village, Belize, Siobhan B. Lozada

Graduate Student Theses, Dissertations, & Professional Papers

Rural households play an active role in reorganizing their livelihood strategies to respond to external stresses and shocks. What is unclear is the extent to which rural households can remain resilient in the face of continued external stresses and how policy actions at larger scales can more effectively encourage rural food and livelihood sustainability. Economic and ecological stresses and shocks have negatively impacted livelihood security and wider economic stability in Belize. This has increased the number of people below the poverty line to 41.3 percent, who remain disproportionately located in rural areas. With a high degree of import dependency, global …

Neuroplasticity, Dosage, And Repetition Priming Effects In Individuals With Stroke-Induced Aphasia, Jenna Ray Griffin

Graduate Student Theses, Dissertations, & Professional Papers

Intensity significantly impacts aphasia treatment efficacy, yet research protocols have not answered questions about optimal intensity and/or dosage. A single-subject ABA design investigated the influence of repetition priming on naming performance for four individuals with stroke-induced aphasia. The participants completed an intensive training protocol with repeated attempts to name pictures. Independent variables included training status and stimulus dosage. The dependent variable was response accuracy. Response accuracy increased for all participants during the training phase, and training effects persisted through the maintenance phase for all participants. Stimulus dosage did not consistently influence response accuracy for the participants.

Just Leftovers, Sarah Elizabeth Tancred

Graduate Student Theses, Dissertations, & Professional Papers

Just Leftovers is intended to offer an understanding of the woman’s role within the domestic realm and its evolution over time in American society. My ultimate goal is to create an awareness of women’s inequality historically, but also to expose the inequality, biases, and double standards that continue to exist in our contemporary society. I choose to create this awareness through visual art with the manipulation of recognizable objects that the general public, stereotypically speaking, would associate with femininity and domesticity. I am fascinated by how these “feminine” objects and their historical content [e.g. bread pan] have been socially constructed …

Use And Effectiveness Of Wildlife Crossing Structures With Short Sections Of Wildlife Fencing, Elizabeth Rose Fairbank

Graduate Student Theses, Dissertations, & Professional Papers

Our growing transportation infrastructure in the United States has many direct and indirect impacts to wildlife populations. Humans are also impacted by the interaction of roads and wildlife in terms of wildlife-vehicle collisions (WVC’s); which annually result in: hundreds of human fatalities, tens of thousands of human injuries, and billions of dollars in property damage. In response to concerns for wildlife and human safety, road mitigation measures are becoming an increasingly important tool for transportation agencies to minimize the risks of WVC’s. The construction of multiple wildlife crossing structures in combination with wildlife fencing have been shown to reduce WVC’s …

Coordinate Systems In Gã, Kurt Erbach

Graduate Student Theses, Dissertations, & Professional Papers

This thesis presents a comprehensive description and analysis of Gã coordinate systems. Gã is spoken primarily in Accra, the capital of Ghana, and no previous research on Gã has addressed the specific type of locative language described as coordinate systems (Lewis, Simmons, & Fennig, 2013). The current study is based on a corpus of Gã locative descriptions collected through interview-style elicitation sessions with a Gã speaker. Analysis of this corpus has revealed coordinate system morphemes ŋwɛ͂ı͂ ‘up’, shĩshĩ ‘down’, hı͂ɛ͂ ‘front’, sɛ̀ɛ̀ ‘back’, nı͂nè-jwurɔ͂ ‘right’, and àbɛ̀kú ‘left’. In describing the use of these morphemes I use Levinson’s (2003) framework …

The Effect Of Fluoxetine On Self-Control In Betta Splendens, Kathryn Gwen Lamp

Graduate Student Theses, Dissertations, & Professional Papers

The present study examined the effect of fluoxetine on self-control in Siamese fighting fish (Betta splendens). The subjects included 17 male Betta splendens that were exposed to varying levels of fluoxetine, a selective serotonin reuptake inhibitor that increases levels of serotonin, and instrumental choice trials were run. A subject began each trial in the start box and, when a guillotine divider door was lifted, entered one side of a divided goal box. The checkerboard side of the choice door represented either the smaller-sooner choice (SS) or the larger-later choice (LL). When the subject had entered one side of the goal …

Sea Blue Sea: The Creation And Performance Of Educational Children's Music, Kevin Cashman

Graduate Student Theses, Dissertations, & Professional Papers

The making of Sea Blue Sea began in August, 2013 with the creation of the album’s first song ‘Blue Whale’ and was completed in March, 2014. The project’s scope was broad, including a ten-track album about endangered marine wildlife. I researched endangered marine wildlife, including eleven endangered marine species were chosen as subjects for songs, I began the writing process. I wrote six songs with minimal outside assistance and collaborated with The Whizpops for the remainder of the ten tracks included on the album. We fundraised through a Kickstarter campaign. In order to do so, we created a short film …

A Different Kind Of Vision: The Critique Of Consumerism In Flannery O'Connor's Wise Blood, Nicholas L. Eilts

Graduate Student Theses, Dissertations, & Professional Papers

In the tradition of Jon Lance Bacon and Steve Pinkerton, this work endeavors to show how Flannery O’Connor, along with her secular humanist contemporaries, voices a critique of modern American culture that depicts the conflicting elements of consumerism as detrimental to an individual’s personal and social well-being. This study will focus on Wise Blood, in particular, as it represents a consumerist way of life as antithetical to a religious way of life. By illustrating the emptiness of materialism and the nihilism of consumerism, O’Connor hopes to persuade her readers that Christianity is a preferable alternative. The body of this study …

An Emprirical Test Of The Effectiveness Of An Indirect Management Tool In Increasing Optional Shuttle Use At Glacier National Park, Alex Benjamin Weinberg

Graduate Student Theses, Dissertations, & Professional Papers

Glacier National Park instituted an optional, free shuttle system on the Going-to-the-Sun Road in 2007.It was recently discovered that the shuttle system was having an adverse impact on parking congestion at the Logan Pass parking lot. This was occurring because visitors were able to park at Logan Pass all day while they performed a looped hike from the Highline trailhead to the Loop trailhead. Upon completion of their hike, visitors would take the shuttle back to their vehicles. A variety of data suggests that the shuttle system may be inadvertently adding 40-60 day-long passenger vehicles to the Logan Pass parking …

Use Of Climatic Water Balance Metrics As Site Productivity Predictors, Matthew Dilsworth Perry

Graduate Student Theses, Dissertations, & Professional Papers

Estimates of long-term forest site productivity are required to inform multiple forest management objectives including growth and yield assessments, silvicultural planning, and biomass/carbon projections. Estimates traditionally have been quantified in the form of site index by measuring the average height-age relationships of dominant and codominant trees or using regional site index equations. Site index implementation requires that trees are free from suppression and that height growth results from the integration of the biological determinants of growth. While useful in even-aged stands, early age height growth suppression is common in uneven-aged forest structures making existing site indices difficult to assess. Additionally, …

Women And Horses: Three Centuries Of Patriarchal Control In British And American Literature, Kaitlynn Hanna Hirst

Graduate Student Theses, Dissertations, & Professional Papers

Both literary representations of horsewomen and critical responses to such characterizations have largely failed to expose the full complexity of the cultural constraints brought to bear on women’s interactions with horses. In this thesis therefore I will argue that in response to feminist activity to dispel stereotypes of any group of women, the long development of strong, capable representations of women on horseback spanning the nineteenth through the early twenty-first century prove to be little more than repetitive archetypal images which serve to reaffirm patriarchal controls in western culture. If only threaded together by the ways the literary figure of …

Commodity Or Dignity? Nurturing Managers' Courtesy Nurtures Workers' Productivity, Montana Rafferty Moss

Graduate Student Theses, Dissertations, & Professional Papers

Dignity is the measure of people's worth determined through social interactions (Neal, 2012). As people must enjoy core capabilities to possess dignity (Ward & Syversen, 2009), work is one activity through which core capabilities provide a sense of worth (Venkatapuram, 2013). Workplace managers must enact dignity affirming discourse so their workers perceive ownership of core capabilities that afford a sense of worth and fulfillment. Dignity disaffirming (or violating) discourse obstructs core capabilities, leaving work unsatisfying and workers physiologically, psychologically, and emotionally damaged. Not only do such people suffer, but so do their organizations (Ghoshal, 2005). This study reveals that women …

Public Power, Private Matters: The American Social Hygiene Association And The Policing Of Sexual Health In The Progressive Era, Kayla Blackman

Graduate Student Theses, Dissertations, & Professional Papers

In 1914, a group of professionals chartered the American Social Hygiene Association (ASHA), a private reform agency dedicated to the eradication of venereal disease. Over the next several years, the ASHA formed partnerships with other reform organizations and championed education and legal reform. In 1917, during World War I, the ASHA partnered with the federal government to set standards of sexual health for all American citizens. Chapter One explores the origins of the ASHA, focusing on the organization’s attention to international issues surrounding prostitution as well as its organizational partnerships with like-minded domestic reform agencies. By placing itself in dialogue …

'This Disc Is Not For A Bird Bath, It's For My Tractor': Exploring Gender, Sustainable Agriculture, And Networks In Western Montana, Eva Kathryn Rocke

Graduate Student Theses, Dissertations, & Professional Papers

Women’s presence in agriculture as farmers, consumers, advocates, and activists has become ever more apparent over the last two decades as census data, popular media, and academic literature increasingly reflect their work. Many of the farmers in western Montana practicing sustainable agriculture are women and have built relationships with other women farmers in the region through existing agriculture-focused organizations like Homegrown and the Western Montana Growers’ Cooperative. Even with the strong presence of these organizations, some women farmers feel there is potential for the formalization of a women farmer network in western Montana that would increase the opportunities for socialization …

The Effects Of Estrogen In Atrazine-Mediated Foxp3 Induction And Inhibition Of Cd4+ T Effector Cells, Tiffany Emmons

Graduate Student Theses, Dissertations, & Professional Papers

Atrazine (ATR) is a chlorotriazine herbicide that is heavily used in agricultural areas. Atrazine was banned in Europe in 2006 but it is still used in the United States. It is also the most common drinking water contaminant in the United States. Atrazine has been linked to adverse health effects and displays immunotoxicity. It is a potent phosphodiesterase inhibitor and has been shown to induce aromatase activity leading to elevated estrogen levels. Previous studies demonstrated that in vitro atrazine exposure inhibits CD4+ T cell activation and proliferation and increases the frequency of Foxp3+ CD4+ T cells with more severe phenotypes …

Modeling Northern Goshawk (Accipiter Gentilis) Nesting Habitat On The Lewis And Clark National Forest Using Eigenvector Filters To Account For Spatial Autocorrelation, Morganne Marie Lehr

Graduate Student Theses, Dissertations, & Professional Papers

Habitat suitability modeling has become a valuable tool for wildlife managers to identify areas of suitable habitats for management and conservation needs. The Northern goshawk (Accipiter gentilis) has been the focus of many modeling efforts, however, the current models guiding goshawk management on the Lewis and Clark National Forest may not fully capture the unique habitat characteristics that the goshawk is actually selecting for nesting habitat. Therefore, the first objective of this study was to explore the use of Maxent for modeling suitable goshawk nesting habitat on the Lewis and Clark National Forest in central Montana. However, goshawk territoriality and …

Understanding Traditions And Practices Of Medicinal Plant Use In Carhuamayo, Junin, Peru, Anastasia Orkwiszewski

Graduate Student Theses, Dissertations, & Professional Papers

Understanding and preserving Traditional Ecological Knowledge and Practices (TEKP) are essential for the continued resilience and cultural diversity of humanity. TEKP faces a multitude of threats from habitat loss, growth of the market economy, globalization, and acculturation. Medicinal plant use in the high Andean town of Carhuamayo, Junín, was studied to assess the vibrancy of that particular branch of TEKP in that area, in what parts of the population it was held, and what factors influence its loss or growth. Gender, age, migrant status, and acculturation levels were not found to be statistically significant in predicting medicinal plant knowledge. Analysis …

The Comet Mine: An Engendered Study Of Victorian Consumption Practices And Material Culture On A Small Mining Landscape, Ryan E. Wendel

Graduate Student Theses, Dissertations, & Professional Papers

The Comet mine is an early 20th-century, largely undocumented mining

community that existed along the periphery of the Coloma Mining District in the Garnet Range of western Montana. During the summer of 2010, archaeological excavations occurred at multiple features at the site. Through an analysis of cultural material found in deposits at the Comet, this study interprets the way in which patterns of refuse can reveal information about consumption behavior and evolving gender roles in mining communities in Montana, during late Victorian era.

Virtual Screening And Discovery Of Lead Compounds As Potential Dna Methyltransferase 1 Inhibitors And Anticancer Agents, Ogar Ofuka Ichire

Graduate Student Theses, Dissertations, & Professional Papers

Epigenetic changes consist of DNA methylation, histone modification, micro RNA and genome imprinting. DNA methylation of the CpG islands is one of the main methods of epigenetic inactivation of genes and aberrant methylations at promoter regions of tumor suppressor genes can alter gene expression and play an important role in cancer development. DNA methyltransferase I (Dnmt1) is the enzyme responsible for maintaining methylation patterns during cell division and it is overexpressed in many cancers. Thus, Dnmt1 is a promising therapeutic target for development of novel anticancer agents and epigenetic modulators. We have developed two promising class of lead candidates, compounds …

Characterization Of Nipah Virus Pathogenicity In Vitro And In Vivo And Protection From Disease Using A Single Dose Recombinant Vaccine, Blair Lynn Debuysscher

Graduate Student Theses, Dissertations, & Professional Papers

Nipah virus is a zoonotic pathogen that infects a wide species range including humans. It was first discovered in Malaysia in 1998 during a large outbreak, but since has spread to Bangladesh and India causing almost yearly outbreaks in the region since 2001. The distinct geographic locations have led to two genetically varied strains. Infection of humans by Nipah virus leads to respiratory distress and acute encephalitis. Pathology caused by the virus is characterized by vasculitis, necrosis, and edema of small vessels of the lung and brain primarily. This work investigates differences of pathology and clinical signs in the hamster …

P115-Snare Interactions Reveal A New Model Of Function For The Tethering Factor P115, Ting Wang

Graduate Student Theses, Dissertations, & Professional Papers

The endomembrane system consists of several connected yet distinct compartments, constantly exchanging material via the flow of membrane-enclosed vesicles. Protein transport between the endoplasmic reticulum (ER) and the Golgi is one of the most fundamental trafficking pathways in eukaryotic cells, as well as the first step in the secretory pathway. The fusion between vesicles and target membranes requires the orchestration of tethers, Rabs, SM proteins and SNAREs. Tethering factors regulate the targeting of membrane-enclosed vesicles and enhance the efficiency as well as specificity of membrane fusion. P115, a Golgin family tether, has been shown to participate in multiple stages of …

Theophylline And Ambrisentan Combination: Effects On Human Performance, Ams And Physiological Responses To Altitude, Hilary Linda Palakovich

Graduate Student Theses, Dissertations, & Professional Papers

Recent research efforts have attempted to determine the effectiveness of the combination of a pharmacological cardiac stimulant (theophylline) and pulmonary vasodilator (ambrisentan) in attenuating performance losses and mountain sickness at altitude. This combination has been observed to improve hypoxic exercise performance in rats, but never tested in human subjects. In the current study, 30 male participants were tested in a paired fashion to assess whether this drug combination would improve exercise performance and/or decrease symptoms of AMS. The experimental group (EXP, n = 15) received a treatment of 400 mg theophylline and 5 mg ambrisentan, while the placebo group (PLA, …

Understanding The Nature Of Interactions Between Visitors And Mountain Goats (Oreamnos Americanus) On The Hidden Lake Trail, Glacier National Park, Sarah Ilene Markegard

Graduate Student Theses, Dissertations, & Professional Papers

This study examined interactions between visitors and mountain goats on the most heavily used trail in Glacier National Park. The primary objective was to give park managers a baseline of unbiased, reliable data with which to make informed decisions and improve the quality of interactions between visitors and mountain goats. Secondarily, this research was intended to achieve a thorough understanding of both human and wildlife responses during interactions on publically protected lands. The study was conducted over a two month period during the summer of 2013, and it was purely observational. Observations were recorded five days a week for approximately …

Emerging Models In Environmental Volunteerism: The Domestic Volunteer Vacation, John Andrew Stegmaier

Graduate Student Theses, Dissertations, & Professional Papers

For well over two decades, land management agencies in the U.S. have experienced trends of flat if not otherwise declining budgets with which to fulfill their respective missions. Consequently, public land management agencies at various levels have sought creative strategies such as using volunteers to extend quality services without incurring added expense. An increasingly popular form of multi-day volunteer engagements, often referred to as a ‘volunteer vacation,’ is nearly absent from the literature when it comes to domestic project settings as opposed to international and often exotic locales.

A qualitative research study was conducted in the summer of 2013 on …

Biological Invasions: Insights Into Ecology And Evolution, Jennifer Naomi Smith

Graduate Student Theses, Dissertations, & Professional Papers

Introductions of exotic species commonly restructure native communities, but the mechanisms driving native species responses are poorly understood. Invasion biology has focused its research on the negative impacts of invaders, yet invaders can also have positive interactions. A holistic understanding of how biological invasions can have a full range of potential responses from negative to neutral to positive. Understanding the mechanics that underlie native species responses to invasions can help elucidate those factors structuring the native communities we see today. I used a combination of experimental and observational studies in the field and laboratory to determine the effects of spotted …

Perceptions Of Local Hospitals And Food Producers On Opportunities And Barriers To Implementing A Farm-To-Hospital Program, Allison Perline

Graduate Student Theses, Dissertations, & Professional Papers

The purpose of this study was to explore current perceptions and attitudes of local food producers and hospital staff towards incorporating locally-sourced foods into hospital food service programs. Perceived opportunities and challenges to procuring and using local products in the hospital setting were identified. Additionally, perceived enablers and barriers of local producers were identified around working directly with institutions. The goal of this study was to integrate perceptions of producers and hospital staff to develop locally relevant suggestions for strengthening producer-hospital relationships and increase the amounts of local foods in hospital food service programs. Qualitative data was collected by conducting …

Orphic Ecology: Melancholy And The Poetics Of Robert Duncan, Robert Nolan Knapp

Graduate Student Theses, Dissertations, & Professional Papers

This paper explores the poetry of Robert Duncan and the political potential of melancholy. Relying on Judith Butler’s examination of the difference between “mourning” and “melancholy” in Precarious Lives, I argue that Robert Duncan enacts a condition of melancholia that he might respond to what Catriona Mortimer-Sandilands identifies in Queer Ecologies as “the psychically ungrievable”: homosexual desire and the environment. I contend in this thesis that one might enact an active experience of melancholy as both a preservative and rejuvenative force. In the first chapter of the thesis I explore Robert Duncan’s revisitation of a passage from Ovid’s Metamorphoses in …

Care And Companionism: Animal Ethics At The End Of Life, Casie Jean Dunleavy

Graduate Student Theses, Dissertations, & Professional Papers

In this philosophical project, I discuss the different kinds of companion animal and human relations, or in other words, and provide an argument that specifies our ethical obligations to the animals we live with—-our ‘pets.’ In the first chapter, I suggest that there are three types of relationships that humans can have with animals. These are a relation of instrumentalism, paternalism, and companionism, respectively. Such relations rest along a spectrum, but I will argue that companionism is the ideal. After making and defending such conceptual distinctions between human-animal relations, the next chapter will tackle the problem of animal minds. Specifically, …

Novel Ribosome Biogenesis In The Lyme Disease Spirochete Borrelia Burgdorferi, Melissa Lynn Hargreaves

Graduate Student Theses, Dissertations, & Professional Papers

Here we demonstrate the first characterization of an RNase III enzyme from a spirochete and its role in processing rRNA transcripts from the unusual rRNA gene operons of Borrelia burgdorferi. In most bacteria, the three rRNA transcripts (16S, 23S, and 5S rRNAs) that form the ribosome are produced as a single transcript from an operon with minimal spacing between genes. In the B. burgdorferi genome, however, a single 16S rRNA gene is encoded more than 3 kb from the bicistronic 23S-5S rRNA operons. The 23S-5S operons are tandemly duplicated, yielding an uneven number of rRNA genes, a feature unique to …

Examining Skewed Sex Ratio In The Mountain Plover (Charadrius Montanus) Population, Margaret Mercedes Riordan

Graduate Student Theses, Dissertations, & Professional Papers

Skewed sex ratios can have negative implications for population growth or persistence if not congruous for a species system. A skewed tertiary sex ratio (2.3 males per female) has been detected in the breeding population of a grassland shorebird experiencing population declines, the mountain plover (Charadrius montanus). To evaluate the ontogeny of the observed male skew this study examined the early life stages, from laying to fledging, of mountain plover young during their breeding season from 2010 – 2012 in eastern Colorado. The life stages between laying and fledging that allows for differentiation between production and survival of males and …