Digital Commons Network^™

Investigating The Physiological And Behavioral Responses To Fear In A Virtual Reality Fear Conditioning Paradigm, Emily Errante

Master's Theses

No abstract provided.

Impacts Of New England Oyster Aquaculture On Sediment Nitrogen Cycling: Implications For Nitrogen Removal And Retention, Amanda Marie Vieillard

Master's Theses

In this three-year, seasonal study of sediment nitrogen (N) biogeochemistry, we used stable isotope techniques to measure the N cycling reactions nitrification, denitrification (DNF), and dissimilatory nitrate reduction to ammonium (DNRA). Rates were compared to dissolved inorganic nitrogen exchanges between the sediment and overlying water to assess denitrification efficiency (DE). All measurements were performed on sediments underlying (oyster) and removed from (control) oyster aquaculture in two oyster farms in the Northeast, USA.

Overall, DNF was small relative to release of DIN from sediment to the overlying water. Based on DE, both sites were found to favor N recycling over N …

Effects Of A Standardized, Freeze-Dried Grape Powder In Adults With Metabolic Syndrome, Quinn Duclos

Master's Theses

Diets rich in fruits and vegetables have been correlated to lower disease risk. This is thought to be due to bioactive components such as: vitamin C, vitamin E, carotenoids, and polyphenols. Grapes are a food source of many bioactive components, including polyphenols. The effects standardized, freeze-dried, grape powder (GRAPE) were examined in adults with metabolic syndrome (MetS). Twenty men and women (aged 30-70 y) were instructed to consume 60 g/day of GRAPE (equivalent to 2.5 cups fresh grapes daily) or nutritionally-matched placebo powder in a randomized, placebo-controlled, crossover intervention study for 13 weeks. This included 2-week run-in, 4-week intervention (GRAPE …

Development Of An In-Situ Passive Sampling Device For Munitions Compounds And Sulfate, Joseph K Warren

Master's Theses

Passive sampling is a novel method of analyte concentration from the environment that strives to bring greater ease to field sampling regimes than traditional liquid-solid phase extractions (SPE). It is easier to deploy than a Niskin bottle or CTD rosette, and easier to recover than hoisting up dozens of liters of water. Passive sampling also offers the opportunity for wider exploratory studies, as compounds can be selectively extracted back in lab, rather than having to select a particular phase SPE and follow phase-specific elution methods. In this study, Ethylene Vinyl Acetate copolymer (EVA) was used as a marine sorption and …

Determinants Of Tree Sway Frequency In Temperate Deciduous Forests Of The Northeast United States, Amanda Bunce

Master's Theses

Trees are the most common cause of utility damage and power outages during storms in the northeastern United States. Previous studies on tree sway and risk-of-wind-throw have largely been conducted in heavily managed, even-aged, monospecific coniferous stands, while relatively little is known for northeastern mixed temperate deciduous forests. Past studies have suggested a relationship of fundamental vibrational frequencies (FVF) to wind-firmness. The objective of this study was to identify factors determining tree sway frequency in temperate deciduous forests from characteristics of tree architecture, stand structure and wind conditions. To this end, the motion of 41 trees across nine different species …

Force-System Generated By Rigid Archwires With V-Bends: A 3-D Analysis Of Varying Activations, Meenakshi Vishwanath

Master's Theses

No abstract provided.

Impacts Of De-Icing Salt Contamination Of Groundwater In A Shallow Urban Aquifer, Lukas Mcnaboe

Master's Theses

No abstract provided.

Investigating Program Evaluation Implemented By Rural Education Systems To Determine The Efficacy Of Speech-Language Telepractice Services, Allyson Doreen Montgomery

Master's Theses

Given the importance of providing speech-language services to students in rural areas, school districts have begun adopting telepractice as a primary service delivery model (American Speech-Language and Hearing Association [ASHA], n.d.b; Forducey, 2006; & Polovoy, 2008). However, as the demand for telepractice grows, so does the need for a strong method of program evaluation (ASHA, 2005a). The purpose of this study was to investigate the methodologies district level administrators use to evaluate effectiveness and ensure the validity of telepractice services. Two district level administrators from distinct rural educational cooperatives participated in this study. Both were from two distinctive Midwestern states …

Effects Of A 12-Week Exercise Intervention On Joint Kinetics During Curb Negotiation In Cancer Survivors, Anastacia Fraijo

Master's Theses

Cancer is very prevalent in the United States and many people who live with cancer are older adults. Cancer and cancer treatments can be very difficult on the body causing many symptoms that can increase the survivor’s risk of falling. Risk of falling can be even greater when people are required to negotiate obstacles such as curbs or stairs. Research has shown that exercise can reduce symptoms of cancer and cancer treatments and potentially decrease risk of falling. Fourteen cancer survivors, recruited from University of Northern Colorado Cancer Rehabilitation Institute, completed a pre assessment session followed by a gait assessment …

The Differential Expression Of Gene Cohorts Over The Course Of Development In Type I And Type Ii Layer V Pyramidal Neurons Of The Mouse Medial Prefrontal And Primary Somatosensory Cortex, Ryan Shaun Pevey

Master's Theses

Two of the most challenging problems in neuroscience may be the characterization of different neuron types and determining the various decision points over the course of development that defines those different cell types. Part of the problem is that for the clear majority of neuron types, no single gene so far has been shown to act as a type marker. Instead it seems that signatures involving multiple genes are necessary to define each type. The identity of the genes in these signatures remains an important gap in our knowledge. However, recent developments in bioinformatics have produced population level transcript sequencing …

How Did We Get Here? An Inquiry Into Pop Culture, Pop Culture Icons, And America's Support Of The Degradation Of Humanity Through Mass Media Consumption, Thomas Steele

Master's Theses

This thesis focuses on the contemporary human condition associated with the consumption of current entertainment media. Sampling on modes of thought from anthropological, biological, psychological, sociological, and biographical points of view I sought to define what it means to be uniquely human. Furthermore, I sought to compare and contrast contemporary human interactions as described through research studies associated with tabloid news sources, and the entertainment industry. The results of this study were then articulated through four works of art that visually describe that which was found amongst a variety of resources. They describe the rise and fall of the careers …

Textural Analysis Of Historical Aerial Photography To Determine Change In Coastal Marsh Extent: Site Of The Present-Day Grand Bay National Estuarine Research Reserve (Gbnerr), Mississippi, 1955-2014, Heather Michelle Nicholson

Master's Theses

Coastal marshlands are among the world’s most highly productive ecosystems but they have diminished greatly in the past several decades owing to sea-level rise and direct anthropogenic influences. An effective means of quantifying loss or gain in marsh area is through the use of aerial image data, which offers synoptic views of the landscape at decadal-scale sampling frequencies. However, a potential problem with older panchromatic, or black-and-white, imagery is the absence of multispectral information that might be used otherwise in remote identification of vegetation types. Nevertheless, the analysis of horizontal variability in image brightness values, or image texture, can be …

"There Was No Sign Of Man In It": Casting Dracula As Posthuman And Valuing The Progressive Vampire, Mary Elizabeth Wolverton

Master's Theses

Although not an immediate commercial success, Dracula has since become a seminal example of Gothic horror at the fin-de-siècle, leading not only to film, stage, and television adaptations, but also to literary reimaginings and a plethora of scholarship. I argue that the vampires in Dracula do not fit into the traditional critical understandings of the vampire; rather, they belong in two different but related categories recently theorized by science fiction studies and related to human evolution: transhuman and posthuman. I suggest that a reading of the novel that prioritizes the pervasive influence of evolutionary theory on Victorian literature encourages …

Biodiversity And Phenology Of The Epibenthic Macroinvertebrate Fauna In A First Order Mississippi Stream, Jamaal Bankhead

Master's Theses

I used Hester-Dendy multiplate samplers and stick and leaf samples to collect the aquatic insects of Granny Creek, a first-order perennial stream in southern Mississippi, on twelve sampling dates from March 2014 to June 2015. The dominant insect/invertebrate group in Granny Creek was the dipteran family Chironomidae. Forty-two distinct taxa of chironomid larvae were collected over the duration of my study. Two of the dominant chironomid subfamilies in my samples, the Orthocladiinae and the Chironominae, displayed a phenological pattern in which the Orthocladiinae were more prevalent, both in terms of number of species and in abundance of individuals, in the …

Effects Of A Function-Based Peer Management Intervention With Middle-School Students With Adhd, Kate A. Helbig

Master's Theses

Attention Deficit/Hyperactivity Disorder (ADHD) is characterized by impairment in functioning due to inattention, hyperactivity, or impulsivity, as well as difficulties in school with social rejection and academic underachievement (American Psychiatric Association, 2013). The purpose of this study was to investigate the effectiveness of a peer-mediated non-contingent reinforcement (NCR) intervention informed by functional assessment data to decrease disruptive behavior for students with a special education classification of OHI-ADHD. Participants included three student dyads in a middle school setting located in the Southeastern United States. An A/B/A/B withdrawal design was used to evaluate the effectiveness of this intervention. The primary dependent variables …

Born To Run: A Grounded Theory Study Of Cheating In The Online Speedrunning Community, Christopher G. Brewer

Master's Theses

Video games represent a growing genre of media quickly becoming one of the leading forms of entertainment (Jordan, 2014). This popularity has allowed new playstyles to emerge across the video game genre, such as e-Sports and speedrunning. In particular, the speedrunning community has somewhat redefined what it means to “cheat” in a video game by accepting the use certain software and hardware violations that could be seen as “cheating” to the general gaming community. This paper examined the social construction of cheating in this digital community through the use of grounded theory methods.

The Effects Of Plickers As Response Cards On Academic Engagement Behavior In High School Students, Morgan G. Mccargo

Master's Theses

Multiple studies have demonstrated the effectiveness of increasing student opportunities to respond for increasing academically engaged behavior. The use of response cards has held the most efficacy in terms of increasing opportunities to respond, yet no research has been done with the addition of a technology component. The purpose of this study is to evaluate the utility of technology-based response cards on increasing academically engaged behavior of students in three high school general education classrooms. It is hypothesized that the use of Plickers® will increase academically engaged behavior classwide and decrease disruptive behavior across students in all three classrooms.

The Influence Of Perceived Job Flexibility And Spousal Support On The Marital Satisfaction Of Parents Of Children With Special Needs, Katie M. Perlowski

Master's Theses

Parents of children with special needs can experience more stress in their marriage than parents of children without special needs. Previous work has focused on the child as a major influence for the marital relationship, however this research sought to examine less commonly discussed factors that influence marital satisfaction for these parents. Perceived job flexibility and perceived spousal support in parenting were targeted as potential influencers. A mediation model was attempted to explain the mediating role of perceived spousal support in parenting in the relationship between perceived job flexibility and marital satisfaction. Results showed no correlation between perceived job flexibility …

"To Mississippi, Alone, Can They Look For Assistance:” Confederate Welfare In Mississippi, Lisa Carol Foster

Master's Theses

In 1860, few destitute white citizens lived in Mississippi, and they were supported by their home counties. The Civil War drastically increased county indigent levels due to the high service and casualty rates of Mississippi soldiers. This thesis explores how Mississippi provided for its soldiers and their families during and immediately after the war (1861-1868), through post-war pensions (1888-1992), and through the Beauvoir Jefferson Davis Memorial Soldiers’ Home (1903-1957). This thesis challenges the existing historiography, showing that Mississippi began aiding indigent soldiers and families as early as 1861, and the 1888 pension law operated outside the Lost Cause movement, providing …

Potential Of Ozone And Hydroxyl Radicals To Degrade Emerging Organic Contaminants, Lisa Elaine Vance

Master's Theses

Advanced water treatment processes are necessary for the treatment of emerging organic contaminants. Traditional treatment processes do not filter or treat these contaminants causing humans and animals to come into contact and ingest them, both causing illness. Advanced oxidation processes are a good alternative method, but are cost and time intensive.

Previous research on ozone and hydroxyl radicals leads to the conclusion that they might be a vial option for advanced water treatment processes. To test the effects of ozone and hydroxyl radicals on the destruction of algae, ozonated phosphate buffer was mixed with Anabaena and modified BG11 culture media …

Strategies For Increasing The Release Of Pigments In Red Wine, Briana Heywood

Master's Theses

The perception of wine’s quality is directly influenced by its color. Anthocyanin molecules are responsible for imparting color to red wines. They are extracted from grape skins during alcoholic fermentation. This work compares the effects of three parameters: berry integrity, enzyme addition, and fermentation temperature, on phenolic compound extraction (total phenol, tannin and anthocyanin) during the production of Paso Robles’ Cabernet Sauvignon wine. Analyses on phenolic compounds were completed during alcoholic fermentation and barrel aging over the course of eighteen months. Berry integrity compared the degree of berry crushing (whole destemmed berries versus fully crushed berries). Results showed that phenolic …

Investigation Of Ammonia And Nitrate Removal From Municipal Wastewater Using Biowish, Emily Holland

Master's Theses

This research entails investigation of ammonia, nitrate, and nitrite removal from wastewater using a proprietary blend of bacteria known as BiOWiSH^TM. The degradation rates of ammonia, nitrate, and nitrite for Aqua were determined using wastewater at the San Luis Obispo Water Resource Recovery Facility (SLO WRRF). Laboratory and field experiments were conducted to test how Aqua compared with natural bacteria for removal of nitrogen compounds. Preliminary data suggested that Aqua performed nitrate removal best in SLO WRRF wastewater at the secondary clarifier. Aqua could perform anoxic and aerobic denitrification in secondary clarifier wastewater. In mineral media, Aqua removed …

Multi-Scale Assembly Methodologies Of Poly(3-Hexylthiophene) Derivative Systems For Enhanced Optoelectronic Anisotropy, David William Bilger

Master's Theses

Conjugated polymers represent a class of semi-conducting materials with numerous applications in optoelectronic devices, including organic light-emitting diodes, field-effect transistors, and photovoltaics. Because of the numerous advantages of macromolecular systems, including solution processing and mechanical flexibility, conjugated polymers have become a burgeoning field of research with the hopes of producing cost-effective solution-based electronics. Importantly, optoelectronic device performance is heavily influenced by conjugated polymer backbone orientation and overall thin film morphology. As such, the processing conditions of these systems are important to the construction of high- performance optoelectronics. Polythiophenes are model conjugated polymers that have been studied extensively in halogenated organic …

Removal Of Nitrates From Stormwater Using Nanoclays, Rubia Siddiqi

Master's Theses

Creeks and rivers are often polluted as a result of stormwater runoff that carries various contaminants in to open water bodies, causing adverse environmental and health effects. Low impact development (LID) techniques are currently employed to treat this runoff prior to discharge. Nitrate, however, is not consistently removed by these LID techniques. This study analyzed the ability of several nanoclays to remove nitrate in runoff and determined the feasibility of using them as a soil supplement for LID implementation. Six different nanoclays and HCl-treated clays were compared (pre-modified trimethyl stearyl ammonium nanoclay, pre-modified dimethyl dialkyl amine nanoclay, unmodified hydrophilic bentonite, …

Effects Of Wave Action On The Structure Of Fish Assemblages Across An Exposure Gradient, Lauren Liddon

Master's Theses

Disturbance affects the function and diversity of ecosystems. Increased wave exposure to salt marsh can disturb sediments and cause a loss of habitat. The purpose of this study was to explore the effects of increased wave exposure on diversity, abundance, and functional ecology of estuarine fishes. If increased wave exposure is acting as a disturbance to these habitats, ecological theory (Intermediate Disturbance Hypothesis) predicts that diversity will peak at intermediate frequencies and intensities of disturbance. Fish were sampled from 10 sites monthly for 6 years. The sites were assigned to different exposure categories (Open, Intermediate, and Sheltered) using an exposure …

The Influence Of Parental Communication About Sexual Health On Quality Of Emerging Adult Romantic Relationships, Jaclyn Denise Powers

Master's Theses

The research on relationships between parent-child communication about sexuality and sexual communication between adult partners is currently lacking. The current study aims to examine the influence of parent-child sexual communication on adult sexual communication when those children reach adulthood and engage in romantic relationships. Parent-child sexual communication, attachment styles, sexual attitudes, and partner sexual communication were examined for influence on the physical and emotional relationship satisfaction of emerging adults. Study 1 included a quantitative analysis with 553 emerging adults participating in an online survey, and study 2 incorporated a qualitative analysis with an additional 7 emerging adults participating in online …

Investigating The Potential Of Plant-Derived Antimicrobials And Probiotic Bacteria For Improving The Microbiological Safety Of Dry Pet Food, Chi-Hung Chen

Master's Theses

No abstract provided.

Comparison Of White Spot Lesions Among Clear Aligners, Self-Ligating Brackets And Conventional Brackets - A Randomized Controlled Clinical Trial, Hussin Alshatti

Master's Theses

No abstract provided.

Neurophysiological Characteristics Of Magnetic Seizure Therapy Vs. Electroconvulsive Therapy In Geriatric Patients With Severe Depression, Monica T. Ly

Master's Theses

Objective: Magnetic seizure therapy (MST) is under development as an alternative to electroconvulsive therapy (ECT), as it offers reduction in depression symptoms with fewer adverse cognitive effects. This study examined the feasibility and efficacy of MST versus ECT in a randomized trial of geriatric patients with severe depression, then compared the neurophysiological characteristics of seizures induced by MST or ECT and investigated potential links between seizure expression and therapeutic response.

Method: Six patients (mean age: 64.8) with severe depression were randomized to receive MST (n=3) or ECT (n=3) until maximal antidepressant effect (mean number of sessions: 14.67). Depression symptoms were …

Two-Implant Supported Maxillary Overdentures: One-Year Assessment Of Patient-Centered Outcomes., Florian R. Kernen

Master's Theses

No abstract provided.