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The Impact Of Simulated Microgravity On The Growth Of The Model Legume Plant Medicago Truncatula, Gemma Elizabeth Lionheart Jan 2017

The Impact Of Simulated Microgravity On The Growth Of The Model Legume Plant Medicago Truncatula, Gemma Elizabeth Lionheart

Electronic Theses and Dissertations

Simulated microgravity has been a useful tool to help understand plant development in altered gravity conditions. Thirty-one genotypes of the legume plant Medicago truncatula were grown in either simulated microgravity on a rotating clinostat, or a static, vertical environment. Twenty morphological features were measured and compared between these two gravity treatments. Within-species genotypic variation was a significant predictor of the phenotypic response to gravity treatment in 100% of the measured morphological and growth features. In addition, there was a genotype–environment interaction (G×E) for 45% of the response variables, including shoot relative growth rate (p < 0.0005), median number of roots (p ∼ 0.02), and root dry mass (p < 0.005). These findings are discussed in the context of improving future studies in plants space biology by controlling for genotypic differences, and by connecting traits to their underlying genetic causes by using genome-wide association (GWA) mapping. In the long-term, manipulation of genotype effects, in combination with M. truncatula’s symbiotic relationships with rhizobacteria and arbuscular mycorrhizal fungi, will be important for optimizing legumes for cultivation on long-term space missions.


Risk, Reward, And The Role Of Habitat Selection On Community Dynamics In Temporary Ponds, Matthew Robert Pintar Jan 2017

Risk, Reward, And The Role Of Habitat Selection On Community Dynamics In Temporary Ponds, Matthew Robert Pintar

Electronic Theses and Dissertations

The processes that generate patterns of species diversity within and among habitat patches are a fundamental topic of interest in ecology. Traditionally, there was a focus on post-colonization effects such as predation, however, pre-colonization processes, such as habitat selection, are equally important determinants of community structure. In freshwater systems, the lethal effects of dominant predators (particularly fish) are well established, while the transition from permanent to temporary ponds is a defining characteristic. This transition produces distinct communities characterized by organisms with complex life cycles and plastic developmental strategies. This means that many organisms occupying habitat patches arrive there by the …


Nickel Reduces Calcium Dependent Dimerization In Neural Cadherin, Matthew Paul Dukes Jan 2017

Nickel Reduces Calcium Dependent Dimerization In Neural Cadherin, Matthew Paul Dukes

Electronic Theses and Dissertations

Cadherins are the primary transmembrane component in adherens junctions, structures that link the actin cytoskeleton in adjacent cells within solid tissues including neurological synapses, epithelium and endothelium. Cell-cell adhesion by cadherins requires the binding of calcium ions to specific sites in the extracellular region. Given the complexity of the cell adhesion microenvironment, we are investigating whether other divalent cations might affect calciumdependent dimerization of neural-(N-) cadherin. The first chapter focuses on studies to characterize the impact of binding physiological magnesium (II) or neurotoxic nickel (II) on calcium-dependent N-cadherin function. Physiological levels of magnesium have only a small effect on the …


Exploring The Relationship Among Minority Stress, Internalized Homophobia, Mental Health Concerns, Social Support, And Relationship Satisfaction In Female Same-Sex Couples, Kassie Rose Terrell Jan 2017

Exploring The Relationship Among Minority Stress, Internalized Homophobia, Mental Health Concerns, Social Support, And Relationship Satisfaction In Female Same-Sex Couples, Kassie Rose Terrell

Electronic Theses and Dissertations

No abstract provided.


The Impact Literacy Coaches Have On Mississippi's Lower-Performing Schools, Barbara Ann Trivelli-Bowen Jan 2017

The Impact Literacy Coaches Have On Mississippi's Lower-Performing Schools, Barbara Ann Trivelli-Bowen

Electronic Theses and Dissertations

The purpose of this study was to explore the impact literacy coaches had on Mississippi’s lower-performing schools. To guide the study, the researcher developed four research questions and four null hypotheses. The population of this study was derived from a sample of Mississippi students in Grades K-3 who were administered the Early Literacy STAR assessment for kindergartners and the STAR assessment for first through third-graders. This assessment was administered twice during the 2015-2016 school year. The pretest was given in August; the posttest was given in April/May. These students came from four different schools; two schools had literacy coaches and …


The Creation Of Choctaw Central High School And Its Transition To A Bureau Of Indian Affairs Contract School: An Oral History, Fredrick L. Hickmon Jan 2017

The Creation Of Choctaw Central High School And Its Transition To A Bureau Of Indian Affairs Contract School: An Oral History, Fredrick L. Hickmon

Electronic Theses and Dissertations

The members of the Mississippi Band of Choctaw Indians are the invisible heroes of Mississippi. Because of the limited attention placed on the Tribe in Mississippi high school social studies curriculum, and no course of study in any post-secondary institutions in the State, citizens who do not live in close proximity are oblivious to the Choctaws’ existence. Absent is any thought on Mississippi Choctaws deep, rich, background, as the original defenders of the State, or their feelings and contributions toward education. As such this work explored the history of the Mississippi Choctaw with emphasis on education using data collected from …


The Relationship Between The Mississippi Adequate Education Program And Student Achievement In Mississippi Schools, Avence Pittman Jr Jan 2017

The Relationship Between The Mississippi Adequate Education Program And Student Achievement In Mississippi Schools, Avence Pittman Jr

Electronic Theses and Dissertations

The dissertation research examined the effects of school funding upon student achievement in Mississippi public schools from 2011-2012, 2012-2013, and 2013-2014. The detailed description of the MAEP and its relationship to revenues derived from ad valorem taxes and how they explain the primary basis for revenues that support public education in Mississippi. Hence, a secondary problem in this study identified a prediction equation based upon selected school characteristics and derived funding levels (using MAEP data) to predict student achievement. Six hypotheses were examined in the study to determine the effects of school funding upon academic achievement.


Impact Of Hydration On Collegiate Athletic Performance, Fatigue, And Recovery, Lauren Woodard Jan 2017

Impact Of Hydration On Collegiate Athletic Performance, Fatigue, And Recovery, Lauren Woodard

Electronic Theses and Dissertations

The impact of dehydration on several key physiological functions that are critical for athletic performance is well studied. Hydration monitoring has been known to have significant value on impaired physical functions by maximizing performance during training and competition. Impaired physical functions has been suggested as a limitation on explosive strength, musculoskeletal output, cardiovascular output, and proper technique in contact sports. The purpose of this study was to investigate the relationship between hydration levels and physiological profiles that can be used as a proactive approach in monitoring a collegiate athlete’s athletic performance, fatigue, and recovery status. It was hypothesized that insufficient …


The Relationship Between Caring For Individuals Diagnosed With Prader-Willi Syndrome And Caregiver Stress, Michael Andrew Vice Jan 2017

The Relationship Between Caring For Individuals Diagnosed With Prader-Willi Syndrome And Caregiver Stress, Michael Andrew Vice

Electronic Theses and Dissertations

Background/Purpose: Chronic stress is related to numerous health risks such as causing an individual to age more rapidly than an individual with less stress (Oliveira, et al., 2010; Bauer, 2009; McEwen, 2002). Other aging problems related to chronic stress are Alzheimer’s disease (Peterson et al., 2007) and premature death (Canizzo et al., 2011). Stress can lead to mental health issues such as depression (Wiegner, 2015; Hammen, 2005) and anxiety (Wiegner et al., 2015). Stress has also been linked to cardiovascular disease (Seldenrijk, 2015), asthma (Rod et al., 2012; Chen & Miller, 2007), obesity (McInnis et al., 2014), diabetes (Salpea, 2010), …


Succeeding King: Ralph David Abernathy, Sclc, And The Long Civil Rights Movement, Scott Blusiewicz Jan 2017

Succeeding King: Ralph David Abernathy, Sclc, And The Long Civil Rights Movement, Scott Blusiewicz

Electronic Theses and Dissertations

As president of the Southern Christian Leadership Conference, Martin Luther King Jr. emerged as America’s most prominent civil rights activist during the late 1950s and the 1960s. Due to his eloquent speeches and ability to organize large-scale nonviolent protests, King inspired numerous individuals to participate in a grassroots movement for equal rights. After earning two landmark victories with the passage of the Civil Rights Act of 1964 and the Voting Rights Act of 1965, King and his SCLC colleagues shifted the focus of their work to improving economic opportunities for America’s poor citizens. To combat poverty, King planned an ambitious …


Investigating The Glass Ceiling: How Women In Top Media Management Shattered The Glass Ceiling, Jessica Frenshea Love Jan 2017

Investigating The Glass Ceiling: How Women In Top Media Management Shattered The Glass Ceiling, Jessica Frenshea Love

Electronic Theses and Dissertations

This paper explores the successful experiences of women in top media management and their attitudes toward factors of the glass ceiling to identify which factors they perceive as most important, those that remain prominent, and other factors that may have aided in their success. The glass ceiling is the “unseen, yet unbreachable barrier that keeps minorities and women from rising to the upper rungs of the corporate ladder, regardless of their qualifications or achievements” (Cotter, Hermsen, Ovadia, & Vanneman, 2001). This ceiling persists for women in top media management, despite increased feminization in these fields. Previous studies conclude that family …


Virginia-Gene Rittenhouse: The History And Organization Of The New England Youth Ensemble, Valencia Collins Thevenin Jan 2017

Virginia-Gene Rittenhouse: The History And Organization Of The New England Youth Ensemble, Valencia Collins Thevenin

Electronic Theses and Dissertations

This study focuses on Virginia-Gene Rittenhouse and the history and organization of the New England Youth Ensemble (NEYE). Born in Lacombe, Canada in 1922, Virginia-Gene Rittenhouse was a violinist, pianist, composer, and notable music educator in the Seventh-day Adventist Church who established the New England Youth Ensemble in 1969. The ensemble has toured internationally since the early 1970s and it is the resident orchestra at Washington Adventist University in Takoma Park, Maryland. The youth orchestra has played numerous times under the baton of John Rutter and has performed frequently in Carnegie Hall under the auspices of MidAmerica Productions. The author …


Preparation And Characterization Of Acitretin-Loaded Niosomes For Psoriasis Treatment, Marey Abdulmootani Almaghrabi Jan 2017

Preparation And Characterization Of Acitretin-Loaded Niosomes For Psoriasis Treatment, Marey Abdulmootani Almaghrabi

Electronic Theses and Dissertations

Psoriasis is a chronic skin disease that manifests as impaired epidermal differentiation. The disease is typically treated with acitretin, an effective oral cytotoxic agent. However, due to its side effects, its use is highly limited. Topical delivery of acitretin may decrease the systemic toxicity and increase the drug’s bioavailability at the pathological site. However, this approach has some limitations. The decrease in skin integrity due to psoriasis could lead to escape of drug into the systemic circulation system and consequently compromise the topical approach. Also, the high instability of acitretin in the presence of heat could limit its topical application. …


The Decision To Pursue Pharmacy Residency Training: Motivators, Barriers, And The Fear Of Missing Out (Fomo), Ashley Stubblefield Crumby Jan 2017

The Decision To Pursue Pharmacy Residency Training: Motivators, Barriers, And The Fear Of Missing Out (Fomo), Ashley Stubblefield Crumby

Electronic Theses and Dissertations

To examine the influence of Fear of Missing Out (FoMO) on student pharmacists when making postgraduate career decisions, including whether to pursue a residency. Data collection involved survey self-report (mixed mode approach) among student pharmacists (P2-P4) at four participating universities, to identify postgraduate residency intentions as well as the motivators and barriers associated with this choice. The survey included a 14-item FoMO scale designed to examine the influence of this factor in the residency decision. 42% indicated an intention to pursue residency training; the desire to gain experience was identified as the main motivating factor driving this decision. Other important …


Final Muon Cooling For A Muon Collider, John Gabriel Acosta Castillo Jan 2017

Final Muon Cooling For A Muon Collider, John Gabriel Acosta Castillo

Electronic Theses and Dissertations

To explore the new energy frontier, a new generation of particle accelerators is needed. Muon colliders are a promising alternative if muon cooling can be made to work. Muons are 200 times heavier than electrons, so they produce less synchrotron radiation, and they behave like point particles. However, they have a short lifetime of 2.2 μs and the beam is more difficult to cool than an electron beam. The Muon Accelerator Program (MAP) was created to develop concepts and technologies required by a muon collider. An important effort has been made in the program to design and optimize a muon …


Natural Disasters, Incidents Of Mass Violence, And Preparedness On A College Campus: A Study Of University Faculty And Staff, Marcela Caroline Weber Jan 2017

Natural Disasters, Incidents Of Mass Violence, And Preparedness On A College Campus: A Study Of University Faculty And Staff, Marcela Caroline Weber

Electronic Theses and Dissertations

The objective of this study was to examine previous disaster impact, threat perception, self-efficacy, and sex as predictors of university employees’ preparedness for natural disasters and incidents of mass violence. A cross-sectional survey was conducted with faculty and staff members (N = 410) at a medium-sized university located in the southern United States. Employees’ sex, disaster experience, impact of that experience, perceived threat, and self-efficacy were examined as predictors of actual preparedness, across a range of natural disasters and incidents of mass violence. Drawing from the Extended Parallel Process Model (EPPM; Figure 1), a moderated mediation model (Figure 2) was …


Sex-Related Alcohol Expectancies And Perceptions Of Sexual Assault: Recognition Response Latency And Blame Attribution, Walter Thomas Rueff Jan 2017

Sex-Related Alcohol Expectancies And Perceptions Of Sexual Assault: Recognition Response Latency And Blame Attribution, Walter Thomas Rueff

Electronic Theses and Dissertations

Alcohol use has often been linked with sexual violence. Pumphrey-Gordon and Gross (2007) note that “among the numerous factors that have been associated with the occurrence of sexual assault, the use of alcohol is the most reliable” (p. 476). Novel autonomy places undergraduates at a nexus alcohol use and sexual experiences, as well as the potential negative consequences of both. This confluence of factors contributes to proportionally higher rates of risky sexual behaviors and sexual assaults among undergraduates. Alcohol expectancies, beliefs about the outcomes and consequence of drinking alcohol, have been shown to influence drinking behaviors, which have, in turn, …


Stereotypes And The Self-Perceptions Of Black Women: How Places And Identity Strategies Matter, Brieann Avery Jan 2017

Stereotypes And The Self-Perceptions Of Black Women: How Places And Identity Strategies Matter, Brieann Avery

Electronic Theses and Dissertations

Black women are one of the most oppressed groups in America because they possess two qualities of being a minority in terms of race and gender. Whether it is magazines, television shows, or music videos, controlling images are established in the preservation of hegemonic power and to condone the remaining marginalization of black women. Black women are seen mostly sexually exploited in hip-hop. Black women are continuously being oppressed through hip-hop’s constructions created to reinforce ideals about race and gender positioning and inferiority in a hegemonic masculine world, Hip-hop promotes negative images of black women as sexual objects and the …


Native Music And Regular Gigs: A History Of The Maple Leaf Bar, Pieter Frank Kossen Jan 2017

Native Music And Regular Gigs: A History Of The Maple Leaf Bar, Pieter Frank Kossen

Electronic Theses and Dissertations

The purpose of this work is to construct a history of the Maple Leaf Bar in New Orleans, Louisiana in order to determine its place and establish its importance in the musical history of New Orleans. Opened in early 1974, the Maple Leaf Bar is the oldest continually-functioning music club in the city of New Orleans outside of the French Quarter, and is accorded a share of the credit for the current popularity in New Orleans of the roots music of New Orleans and Louisiana. This will be accomplished by identifying and examining comtraits the Maple Leaf Bar shares with …


One Or Two Things I Know About Us: Narrative Strategies For Autoethnography, Self-Representation And Healing In Four Memoirs By Poor-White Women From The U.S. South, Joseph Aaron Farmer Jan 2017

One Or Two Things I Know About Us: Narrative Strategies For Autoethnography, Self-Representation And Healing In Four Memoirs By Poor-White Women From The U.S. South, Joseph Aaron Farmer

Electronic Theses and Dissertations

This dissertation examines autobiographical writings by formerly poor white Southern women, who are rarely considered as a group and are more typically studied with “rough South” male writers, which would suggest that few women have contributed their own gendered experience to discussions of class, race, and sexuality vis-à-vis Southern poverty. Correcting this assumption, I examine formative statements by women from poor white backgrounds, including Roxanne Dunbar-Ortiz’s Red Dirt, Janisse Ray’s Ecology of a Cracker Childhood and Wild Card Quilt, Dorothy Allison’s Trash, and Jeannette Walls’s The Glass Castle. Each of these writers engage in narrative strategies that do not defend …


Native Speaker Stance-Taking In A Multinational Conference Call, Vanessa Cristina Revheim Cunha Jan 2017

Native Speaker Stance-Taking In A Multinational Conference Call, Vanessa Cristina Revheim Cunha

Electronic Theses and Dissertations

The present study examines the stance-taking measures of a native speaker director in a conference call, focusing on social contexts where foreign speakers are also involved. The transcript used in this study is comprised of a global departmental team meeting call from a multinational company based in Austin, TX. Subjects are native and nonnative co-workers or specialists in the field of home vacation rental and a native director. The analysis aims at finding what different stance-taking measures are enacted by the director throughout this conference call, what linguistic strategies are used to claim authority, and whether different strategies or stances …


Sicilians In Detroit: How Do They Speak?, Giovanna Brunetti Jan 2017

Sicilians In Detroit: How Do They Speak?, Giovanna Brunetti

Electronic Theses and Dissertations

The present study focuses on the linguistic analysis of the varieties of the Sicilian dialect spoken in the city of Detroit, Michigan. The city has witnessed, starting from the early 19th century, a steady process of immigration and settlement involving speakers mainly arriving from the two Sicilian coastal towns of Terrasini and Cinisi. The varieties they speak appear to have never been the subject of systematic observation. The present study, thus, focuses on the preservation, attrition and/or loss of the phonological features of the Sicilian dialect spoken by a community of Sicilian immigrants of different generations living in Detroit. Native …


Designing Framework For The Computer Aided Design Of Silicon Carbide Jfet Circuits In Bleo Environments, Venkata Vinay Naidugari Jan 2017

Designing Framework For The Computer Aided Design Of Silicon Carbide Jfet Circuits In Bleo Environments, Venkata Vinay Naidugari

Electronic Theses and Dissertations

Abstract: circuit design and testing are two essential processes to synthesis of an efficient and reliable circuit. Real-time testing of a circuit through circuit fabrication and development is an expensive and a risky procedure whereas testing the circuit by modelling and simulating is more efficient and inexpensive. Silicon-based semiconductors are the basic components of any modern day electronic devices, and their usage has dominated the marketplace. But these conventional cmos devices cannot exist in an environment consisting of harsh radiation, high temperature and many other environmental conditions, such as venus or mars. However, 6h-sic jfets, which are basic logic gate …


Detection Of Sedimentary Depositional Cycles In The Salado Formation, Southeastern New Mexico, Scott Paul Milo Jan 2017

Detection Of Sedimentary Depositional Cycles In The Salado Formation, Southeastern New Mexico, Scott Paul Milo

Electronic Theses and Dissertations

An abundance of evaporitic features is preserved throughout the approximately 2,000-foot-thick Salado formation that is present across west Texas and southeastern New Mexico. The formation and preservation of evaporitic features are largely influenced by hydrology, and so those found in the Salado represent an uninterrupted record of hydrogeologic conditions in what is now the southwestern United States during the late Permian. Because it is home to the Waste Isolation Pilot Plant (WIPP) repository chamber, the salado has been the subject of countless studies ranging from areas of sedimentology, to geochemistry, to geotechnical engineering, to hydrology. However, until now there have …


Burden Of Depression Among Individuals With Irritable Bowel Syndrome(Ibs) In The Medicaid Population, Kaustuv Bhattacharya Jan 2017

Burden Of Depression Among Individuals With Irritable Bowel Syndrome(Ibs) In The Medicaid Population, Kaustuv Bhattacharya

Electronic Theses and Dissertations

Objective: to determine the period prevalence of IBS and comorbid depression among individuals with Irritable Bowel Syndrome (IBS) in multi-state Medicaid population, and to assess the impact of comorbid depression on healthcare utilization and costs among individuals with IBS enrolled in fee-for-service Medicaid program. Methods: a retrospective cohort study was conducted using 2006-2008 Medicaid analytic extract files for 39 states. Beneficiaries with IBS were identified based on any medical claims for the disease. Beneficiaries with one or more medical claims for depression during the study period were considered to have had comorbid depression. For each beneficiary, the first claim for …


Effective Interactions Between Local Hopping Modulations On The Square Lattice, Huu T. Do Jan 2017

Effective Interactions Between Local Hopping Modulations On The Square Lattice, Huu T. Do

Electronic Theses and Dissertations

No abstract provided.


Ask Your Doctor About Exposure Therapy!: Direct-To-Consumer Marketing Of Empirically Supported Psychological Treatments For Anxiety, Joshua C. Fulwiler Jan 2017

Ask Your Doctor About Exposure Therapy!: Direct-To-Consumer Marketing Of Empirically Supported Psychological Treatments For Anxiety, Joshua C. Fulwiler

Electronic Theses and Dissertations

Despite efforts to disseminate Evidence-Based Psychological Interventions (EBPIS) to mental health practitioners, most individuals with psychological disorders do not receive any form of treatment, and many others who do seek treatment do not receive EBPIS. The success of the pharmaceutical industry in effectively marketing prescription drugs directly to consumers is considered as a model for advancing dissemination of EBPIS. Utilizing undergraduate students as participants, the current study examined how potential consumers of mental health services respond to internet-based marketing information about EBPIS. Participants vieinformation about anxiety disorders and a specific type of treatment (i.e., cognitive-behavioral therapy) in both text and …


Towards A Better Understanding Of Secondary Metabolite Production In Toxic Marine Algae, Thuy My Nguyen Jan 2017

Towards A Better Understanding Of Secondary Metabolite Production In Toxic Marine Algae, Thuy My Nguyen

Electronic Theses and Dissertations

Roseofilum reptotaenium is a marine cyanobacteria responsible for the loss of 50% of corals worldwide due to Black Band Disease (BBD). Investigating the basis for secondary metabolite production by R. reptotaenium cultures revealed a suite of potent anti-malarial and anticancer compounds that likely include dolastatin 10 and monomethyl auristatin D (MMAD). These R. reptotaenium cultures are non-axenic (not pure monocultures) and R. reptotaenium appears to require the presence of several heterotrophic bacteria to survive. Scanning Election Microscope (SEM) images show closely associated bacteria. Preliminary metagenomic analysis indicates three dominant non-cyanobacterial phyla: Bacteroidetes, Planctomycetes, and Proteobacteri (?-proteobacteria accounted for >50% of …


An Evaluation Of The Mississippi Recipes For Success Resource From The Perspective Of Child Nutrition Directors, Chelsea L. Bell Jan 2017

An Evaluation Of The Mississippi Recipes For Success Resource From The Perspective Of Child Nutrition Directors, Chelsea L. Bell

Electronic Theses and Dissertations

The Mississippi Recipes for Success (MRS), A Guide for Child Nutrition Programs provides printed and online resources for child nutrition directors. These resources include recipes and methods to assist directors in effectively implementing United States Department of Agriculture (USDA) nutrition standards. The purpose of this study was to investigate if child nutrition directors utilize these resources, as well as assess child nutrition directors’ perceptions of the helpfulness, satisfaction, and importance of the various components of the online and 2014 printed versions of the MRS. Data collection for this study involved an online survey that evaluated directors’ usage of the resources …


Re-Evaluating The Tectonic Model For The Arbuckle Mountains, Oklahoma By Spatial And Geometric Analysis Of Stratigraphic And Structural Trends, Dakota James Kolb Jan 2017

Re-Evaluating The Tectonic Model For The Arbuckle Mountains, Oklahoma By Spatial And Geometric Analysis Of Stratigraphic And Structural Trends, Dakota James Kolb

Electronic Theses and Dissertations

Understanding the spatial distribution and geometric relations between stratigraphy and structural features can allow for a more accurate tectonic timeline to be considered for not only the Arbuckle Mountains but for the assembly of modern North America. The Arbuckle Mountains in south central Oklahoma exhibit structurally complex stratigraphy associated with regional features like the Southern Oklahoma Aulacogen, the Arbuckle Anticline and the Washita Valley fault. Camp Classen YMCA and Turner Falls city park in Davis, OK, hosts observed, but largely unmapped, small scale structural features that best represent the magnitude of deformation. The goal of this study was to determine …