Digital Commons Network^™

Use Of Turkish Verbal Morphology By Children With Primary Language Impairment And Their Typically Developing Peers, Treysi Terziyan

Master's Theses

Language impairment in languages other than English has not been exhaustively studied. In the current study, we developed tasks that elicit productions of verbal morphemes from Turkish-speaking children. In the first part of the study we developed the tasks and piloted them on adults and school-aged children. In the second part of the study, we compared the performance of younger children with and without primary language impairment on the tasks we had developed. Our results suggested that adults and school-aged children were at or near ceiling on our tasks. Furthermore, the younger typically developing children performed near ceiling, whereas the …

A Physiologically Motivated Approach To The Classification Of Natural Sounds Using High Order Sound Statistics, Brian B. Bishop

Master's Theses

The ability of humans and animals to classify sounds into behaviorally relevant categories is an ongoing field of study in auditory neuroscience and psychophysics. We employed a physiologically motivated signal processing scheme to extract time-varying statistics from a large database of real sounds. Our hypothesis is that two sound statistics, intensity and contrast, will be sufficient to classify broad categories of sounds using a naïve Bayesian classifier. We seek to evaluate this hypothesis, determine to what extent these two time-varying statistics can be used to classify sounds and to evaluate the limitations of the technique. The sounds themselves were organized …

Hydrologic Characteristics Of Summer Stream Temperatures In Little Creek And Scotts Creek At The Swanton Pacific Ranch, Justin M. Louen

Master's Theses

Stream temperature impacts have resulted in increased restrictions on land management such as timber harvest and have created considerable uncertainty for future planning and management of redwood forestlands. Challenges remain in the assessment of downstream cumulative effects given the complexity of stream temperature dynamics. The goal of this research is to identify the risk of downstream temperature heating based on the summer low flow residence times, stream morphological characteristics, stream water storage, and heat budget exchanges. Stream temperature, hydrologic, climatic, and channel morphological data were collected on two, approximately 800 m stream reaches on Little Creek and Scotts Creek located …

Risk-Based Approach To Assessment Of Advanced Technologies For Conceptual Design, Adipratnia Asmady

Master's Theses

The conceptual design phase of an aerospace system development program is typically characterized by short duration and relatively limited resources, yet design decisions are made that have critical implications on program risk. To address the more aggressive requirements, one of these decisions is the selection of advanced technologies. System developers need to assess advanced technologies early on, but are faced with uncertainties surrounding the potential net benefits. The concept introduced in this study is uncertainty characterization as a way to better understand the associated risk. A framework was developed to guide the interaction between the technology developer and the system …

Characterization Of Etbe + Cl And Isooctane + Cl Combustion Products Using Synchrotron Photoionization, Rong Yao

Master's Theses

The low temperature (298 – 700 K) oxidation characterizations of a series of fuel additives (ETBE and isooctane) were studied at advanced light source in Lawrence Berkley National lab, using a multiplexed chemical kinetics photoionization mass spectrometer with tunable synchrotron radiation. Using Cl atoms as initiators in presence of oxygen, photoionization data were collected. Data analysis was performed via characterization of the reaction species photoionization spectra and kinetic traces, from which the products and also the intermediates were identified. Relevant reaction dynamics on potential energy surfaces were calculated, reaction enthalpies of each individual step were presented using the CBS-QB3 composite …

Inducing Emotional Response In Interactive Media, Keenan M. Reimer

Master's Theses

Video games, and entertainment media have been developed for many years, and eliciting emotional experiences is an integral part of that process. Producing and editing game content in order to affect desired emotional experiences can be expensive and cumbersome to developers. This paper presents a study intended to show that such experiences can be affected with simple after-the-fact audio-visual effects. As subjects of the study, participants experience three different emotional states, fear, peace, and none, over three rounds and in three different game environments. They are given a simple narrative in each environment that directs them to gather various objects. …

The Poet's Corpus: Memory And Monumentality In Wilfred Owen's "The Show", Charles Hunter Joplin

Master's Theses

Wilfred Owen is widely recognized to be the greatest English “trench poet” of the First World War. His posthumously published war poems sculpt a nightmarish vision of trench warfare, one which enables Western audiences to consider the suffering of the English soldiers and the brutality of modern warfare nearly a century after the armistice. However, critical readings of Owen’s canonized corpus, including “The Show” (1917, 1918), only focus on their hellish imagery. I will add to these readings by demonstrating that “The Show” is primarily concerned with the limitations of lyric poetry, the monumentality of poetic composition, and the difficulties …

"Black And White Together, We Shall Win": Southern White Activists In The Mississippi Civil Rights Movement, Olivia Bethany Moore

Master's Theses

During the Civil Rights Movement, Mississippi has often been characterized as a simple battle of white racists against black activists. Drawing heavily on oral histories, personal publications, and Mississippi Sovereignty Commission reports, this thesis examines the unconventional stories of white southerners who transcended the segregationist environments in which they were born. As southern white activism took many forms, this work offers biographical insights to three individuals who have received little scholarly attention: journalist P.D East, National Association for the Advancement of Colored People (NAACP) activist Buford Posey, and William Carey president Ralph Noonkester. While their contributions between 1950-1971 differed, being …

Correlation Of Polymer Performance And Hansen Solubility Parameters, Daniel Jobse Mania

Master's Theses

Ready-to-use (RTU) grout is becoming more important to the finish and remodeling construction industry. Market research shows it is a fast-growing product that not only is creating its own space, but is beginning to supplant existing technology.

The original intent of this research was to investigate formulation parameters and how they affect grout performance. It was learned that particle size and oil absorption (OA) value are important filler properties that affect performance as much as adequate packing density and optimal pigment volume concentration (PVC) without going beyond critical PVC (CPVC).

Polymer architecture was also determined to be extremely important, but …

Mr. Jefferson's Army In Mr. Madison's War: Atrophy, Policy, And Legacy In The War Of 1812, David Alan Martin

Master's Theses

President Thomas Jefferson is a well-known figure, who is not well understood. His military policies are under-examined in the historiography. Yet, he had a tremendous impact on martial development in the Early Republic. Jefferson reshaped the military to suite his pragmatic republican ideals. His militia system expanded while the regulars were disbanded. The Navy was greatly decreased, and the remainder of his military was used for frontier exploration, riverine trade, road development, and other public works. This disrupted the precedent of strong federal military development as set by his predecessors: George Washington and John Adams. His reforms also left the …

Prejudice And Discrimination In U.S. Graduate Geography Programs: Reports From Domestic And International Students, Karen C. Johnson

Master's Theses

This thesis focuses on domestic and international students and their experiences of discrimination and prejudice while enrolled in graduate geography programs in the United States. This is an issue that relates to three important and interrelated trends in graduate education in the United States: increasing numbers of international students; growing efforts to reduce and eliminate discrimination and prejudice in higher education; and rising awareness of the role that academic “climate and culture” play in sustaining or changing current patterns of participation by students of diverse backgrounds. A web-based survey was developed and used to collect data from 420 students in …

The Organization Of Technology In The Pine Hills Of Mississippi, Ronald W. Wise Jr.

Master's Theses

This thesis details the use of experimental flintknapping to better understand stone tool production and the organization of technology among Woodland period hunter-gatherers within the Pine Hills region of Mississippi. The Pine Hills region is characterized archaeologically by the presence of numerous sites consisting of flake scatters and little other material remains. Local tool stone resources consist of high grade chert in the form of small river cobbles, which restricts potential tool forms available to users.

Research for this project focused on the statistical analysis of debitage created during the experimental replication of stone tools using local chert cobbles. Special …

"Your Reclamation”: The Gothic Child And Moral Restoration In Charles Dickens’S A Christmas Carol, Ashten Roberts

Master's Theses

Charles Dickens’s A Christmas Carol (1843), an example of Victorian Gothic literature, portrays spirits escorting Ebenezer Scrooge on a journey through time in order to transform him from a miser to a benefactor. Dickens’s text has received much critical attention, and while most critics agree that the novella includes various elements of the gothic, few draw attention to the possibility of the child characters as gothic elements. I argue that Carol’s child characters can be read in terms of what Margarita Georgieva calls “the gothic child.” According to Georgieva, the gothic child can be an adult’s memory from childhood …

Reconstitution Of Munc18-Dependent Mast Cell Degranulation, Matthew Grant Arnold

Master's Theses

Mast cells are specialized secretory leukocytes that play diverse roles in the body, mediated by release of histamine and other pharmacologically active substances. Although offering essential protection in innate and adaptive immunity, mast cells are also essential to the progression of inflammatory diseases, including allergy and asthma, (Theoharides et al., 2012). Exocytosis of pro-inflammatory mast cell mediators in response to otherwise innocuous antigens relies on evolutionarily-conserved membrane fusion machinery. These proteins, called SNAREs are regulated by the Sec1/Munc18 (SM) protein family (Axle Lorentz, Baumann, Vitte, & Blank, 2012). Mast cells express three mammalian Munc18 isoforms (a, b, and c), which …

Decolonizing The Ya North: Environmental Injustice In Sherri L. Smith’S Orleans, Micah-Jade M. Coleman

Master's Theses

Young Adult (YA) dystopias, in recent years, have imagined a future world fueled by the overuse and misuse of technology, the advancement of science for human gain, as well as societies ruled by governments that govern based on their own self-interests and economic gain. Such novels have opened the door for discussion about how the present-day actions of societies can impact the future of the environment; yet many only focus their attention on societies in the North— regions considered “developed” by the western world. In her YA novel, Orleans (2014), Sherri L. Smith focuses attention on the aftermath of Hurricane …

Are Countries In Environmental Cooperation Concerned About Relative Gains?, Vivian Chinua Olivia Ike

Master's Theses

A country’s decision to join or withdraw from environmental cooperation has been argued by interest based theories to be influenced by the economic cost of international agreements, national interest of countries and the free-rider problem. However, this thesis argues that relative gains is a more decisive factor that influences the decision of countries in international arrangements. It hypothesizes that countries in environmental cooperation are concerned about relative gains. A content analysis of the statements of fifteen countries in international climate change cooperation are analyzed. The countries include the United States, Russian Federation, Canada, Japan, Australia, China, Brazil, South Africa, India, …

Effects Of Fire On Soil Co₂ Efflux In A Mature Longleaf Pine Forest, Knox Lemee Flowers

Master's Theses

This study was conducted from 2012-2013 in a 96 year old longleaf pine at the Lake Thoreau Environmental Center located Lamar County, MS. Measurements of soil CO₂ efflux (i.e., soil respiration or SR) rates (µmol m^-2 sec^-1) were taken across 8 field plots (4 burned, 4 unburned) before and after a prescribed fire on that occurred in May, 2012. These measurements were taken over diurnal cycles using a LICOR LI-8100A automated soil gas flux system with long term chambers. SR rates and soil temperature measurements were collected during 3 sampling periods in 2012 and 1 sampling period …

Effects Of Prebiotics On Gut Bacterial Communities And Healing Of Induced Colitis In Mice, Krystyn Elizabeth Davis

Master's Theses

Inflammatory Bowel Diseases (IBD) cause chronic inflammation of the gastrointestinal tract and debilitating symptoms in those suffering from the diseases. After inducing colitis in a mouse model using Dextran Sulfate Sodium (DSS), prebiotics inulin and oligofructose enriched inulin (OEI) were used as treatments to determine their effects on the gut microbial community, physiological healing process, and immune response in the mice after initial inflammation and before subsequent inflammation, or relapse. The treatment with inulin led to an increase in regulatory T cell number, but this increase was not as significant as the increase induced by the OEI. Inulin increased the …

Growth And Reproduction Of Southern Flounder (Paralichthys Lethostigma) In The North-Central Gulf Of Mexico, Morgan Marie Corey

Master's Theses

Southern Flounder Paralichthys lethostigma is the most commonly harvested flatfish in the north-central Gulf of Mexico (GOM) and supports a major inshore recreational fishery, yet knowledge of the species’ life history is greatly limited. The objective of this research was to describe the growth and reproduction of Southern Flounder in the Mississippi stock. Fish were collected during September 2014 to March 2016 using primarily recreational fishing techniques. Otoliths (n = 313) were sectioned to estimate age, and multiple length-at-age models were fit to total length (TL, mm) and age estimate (y) data. Gonadal tissue samples (n = 221) …

Determining The Viability Of Recent Storms As Modern Analogues For North-Central Gulf Of Mexico Paleotempestology Through Sedimentary Analysis And Storm Surge Reconstruction, Joshua Caleb Bregy

Master's Theses

The northern Gulf of Mexico has been devastated by recent intense storms. Camille (1969) and Katrina (2005) are two notable hurricanes that made landfall in virtually the same location in Mississippi. However, fully understanding the risks and processes associated with hurricane impacts is impeded by a short and fragmented instrumental record. Paleotempestology could potentially use modern analogues from intense storms in this region to extend the hurricane record back to pre-observational time. Existing empirically based models can back-calculate surge heights over coastal systems as a function of transport distance, particle settling velocity, and gravitational acceleration. We collected cores in a …

"Too Big To Swallow All At Once": Consumption And Posthuman Healing In Ceremony And House Made Of Dawn, Matthew Thomas Craft

Master's Theses

This project examines the roles of animals and animal figures in the Native American novels House Made of Dawn (1968)by N. Scott Momaday and Ceremony (1977) by Leslie Marmon Silko. Both novelists consistently evoke animal imagery within their respective texts often pairing this imagery alongside symbolic and metaphorical depictions of cannibalistic identity violence. Through the use of posthuman and postcolonial methodologies and ideas, I contend that the pairing of these two distinct types of imagery that both Momaday and Silko intentionally align the animal figures with premodern, indigenous belief systems while the cannibalistic violence is more often envisioned as …

The Invisible People Of The Invisible Coast: The Resilience Of People Experiencing Homelessness To Disasters On The Alabama, Louisiana, And Mississippi Gulf Coasts, Nicole Elizabeth Callais

Master's Theses

While extensive research has been conducted on vulnerability and resilience with regard to hazards, very few studies have researched the resilience of homeless populations. The Gulf Coast region is densely populated and susceptible to natural and anthropogenic hazards. Climate change studies indicate that this region will experience an increase in severe and intense tropical cyclones[1], thereby increasing the risk of experiencing adverse impacts from future coastal hazards. While local government agencies in this region have policies in place to protect communities, these policies tend to exclude any action regarding the evacuation and safety of the homeless population.

In …

The Effects Of 4-Nonylphenol On The Immune Response Of The Pacific Oyster, Crassostrea Gigas, Following Bacterial Infection (Vibrio Campbellii), Courtney Hart

Master's Theses

Endocrine disrupting chemicals (EDCs) are compounds that can interfere with hormone signaling pathways and are now recognized as pervasive in estuarine and marine waters. One prevalent EDC in California’s coastal waters is the xenoestrogen 4-nonylphenol (4-NP), which has been shown to impair reproduction, development, growth, and in some cases immune function of marine invertebrates. To further investigate effects of 4-NP on marine invertebrate immune function we measured total hemocyte counts (THC), relative transcript abundance of immune-relevant genes, and lysozyme activity in Pacific oysters (Crassostrea gigas) following bacterial infection. To quantify these effects we exposed oysters to dissolved phase …

The Effectiveness Of Periodically-Harvested Closures In Meeting Ecological And Socioeconomic Objectives, Paul G. Carvalho

Master's Theses

Periodically-harvested fisheries closures (PHCs) are a widespread form of community-based marine spatial management used throughout the Indo-Pacific that also is currently being intensively advocated by conservation organizations for supporting productive fisheries and healthy marine ecosystems. However, local implementation of PHCs has historically been designed to support occasional and efficient exploitation of fish stocks, and not necessarily sustainable fisheries yields and stock conservation. The efficacy of PHCs for achieving their historical cultural objectives of periodicity and efficiency of harvest, simultaneously with achieving contemporary fisheries objectives of fisheries productivity and conservation is undetermined. As a result, the utility of PHCs for supporting …

Effects Of Experimental Noise Exposure On Songbird Nesting Behaviors And Nest Success, Tracy I. Mulholland

Master's Theses

Anthropogenic noise is an increasingly prevalent global disturbance. Animals that rely on the acoustical environment, such as songbirds, are especially vulnerable to these sounds. Traffic noise, in particular, overlaps with the frequency range of songbirds, creating masking effects. We investigated the effects of chronic traffic noise on provisioning behaviors and breeding success of nesting western bluebirds (Sialia mexicana) and ash-throated flycatchers (Myiarchus cinerascens). Because anthropogenic noise exposure has the potential to interrupt parent-offspring communication and alter vigilance behaviors, we predicted that traffic noise would lead to changes in provisioning behaviors, such as fewer visits to the …

Family Influences On Ethnic Identity Development Among Transracial Adoptees, Holly Mee Seong Stangle

Master's Theses

This study focused on the experiences of transracial adoptees in the United States, in an effort to examine the roles of cultural socialization and family influences on adoptees’ ethnic identity development. This study explored these issues through in-depth interviews with 11 adult transracial adoptees. Qualitative data analysis indicated various factors influencing participants’ ethnic identity development. Analysis compared levels of parental connection to adoptees’ birth culture, according to participants’ responses to interview questions. Analysis also compared socialization activities perceived by participants as meaningful to those that participants described as superficial or lacking in meaning. Themes included freedom of choice, opportunities for …

Fluid Flow Characterization And In Silico Validation In A Rapid Prototyped Aortic Arch Model, Alexandra Mariel Knauer

Master's Theses

Transcatheter aortic heart valve replacement (TAVR) is a procedure to replace a failing aortic valve and is becoming the new standard of care for patients that are not candidates for open-heart surgery [2]. However, this minimally invasive technique has shown to cause ischemic brain lesions, or “silent infarcts”, in 90% of TAVR patients, which can increase the patient’s risk for stroke by two to four times in future years [3]. Claret Medical Inc., a medical device company, has developed a cerebral protection system that filters and captures embolic debris released during endovascular procedures, such as TAVR. This thesis utilized CT …

The Preservation And Protection Of Native Biodiversity In The Guadalupe Nipomo Dunes Complex, Lindsey M. Whitaker, Matthew Ritter, Scott J. Steinmaus, Jonathan Hall

Master's Theses

The Guadalupe Nipomo Dunes Complex (GNDC) is located within the California Floristic Province, a biodiversity hotspot characterized by high rates of endemism and exceptional loss of habitat. In 1980, the US Fish and Wildlife Service described the GNDC as, “the most unique and fragile ecosystem in the State of California,” and ranked it first on a list of 49 habitat areas needing state protection. It is the largest coastal dune area in California and it is one of the last remaining, relatively intact ecosystems of its type and size in the western United States. The growing recognition of species decline …

Material Selection And Testing For A Radiation Therapy Catheter, Philip James Wadlow

Master's Theses

Three different polymers (a high-density polymer and two other polymers) were tested for use as an x-ray catheter in a radiation therapy application. This report describes the testing of these three materials to determine which material is the best option for a long use catheter. Tests included tensile, simulated clinical life, and other tests. Some testing was performed using nitrogen and an industrial coolant. Testing revealed significant non-circularities for some catheters. With increasing pressure, the circularity of these catheters increased. The tensile tests were performed on samples with varying doses of radiation. Tensile testing showed significant decreases in ultimate tensile …

The Proteomic Response Of Gill Tissue In Tidally And Subtidally-Acclimated California Mussels, Mytilus Californianus, To Acute Emersion-Induced Anoxia, Aubrie N. Fowler, Lars Tomanek

Master's Theses

Intertidal mussels regularly experience emersion-induced anoxia, in contrast to normoxic conditions experienced during submersion. We therefore hypothesized that acclimation to a tidal rhythm, as opposed to a rhythm of constant submersion, preconditions the proteome of the California mussel, Mytilus californianus, to respond differently to emersion-induced anoxia. Following acclimation, mussels either continued to receive the acclimation conditions (control) or were exposed to 100% nitrogengas (anoxia) during aerial emersion. We collected gill tissue for subsequent analysis of protein abundance with 2D gel electrophoresis and protein identification with tandem mass spectrometry. Relative to subtidally-acclimated mussels, tidally-acclimated mussels showed a greater propensity to …