Digital Commons Network^™

A Study Of Osteocyte Apoptosis In Mechanically Loaded And Unloaded Murine Tibiae, Josiah Elihu Kessler

Master's Theses

Previous research has provided evidence in support of apoptotic osteocytes playing a role in the bone remodeling process. In this study, we examined the regional and quadrantal variations of apoptotic and viable osteocytes in cyclically loaded and unloaded samples. Left tibias of C57 Black 6 Taconic mice (C57Bl/6) were cyclically loaded for either 2 weeks or 5 weeks, with the right tibias being used as controls. After loading, tibias were resected, processed, and then stained using either a TUNEL stain, to show apoptotic osteocytes, or a 2.0% methyl green solution, to reveal viable cells. Cross-sectional images from each tibia were …

Alluvial Sedimentation Associated With Logging In Low Gradient Watersheds In Desoto National Forest, Mississippi, Andrew W. Simmons

Master's Theses

Forestry and related businesses are an important factor of Mississippi’s economy, contributing between $11 and $14 billion annually (Mississippi Forestry Commission, 2006). The timber industry is not only important in Mississippi but is an important sector of the economy throughout the Gulf Coast region. While providing positive economic benefits to the region, the forestry industry can also negatively affect soil properties, hillslope stability, and increase sedimentation rates in local streams and rivers. The aim of this research is to determine if forestry removal causes an increase of soil erosion and how it affects floodplain sedimentation in the low gradient watershed …

Age, Growth, Reproduction, And Diet Of The Finetooth Shark, Carcharhinus Isodon, In The Northern Gulf Of Mexico, Jeremy Michael Higgs

Master's Theses

The current study examined life history parameters of the finetooth shark, Carcharhinus isodon, in the northern Gulf of Mexico (nGOM) to provide an accurate description of the species’ reproductive biology, age, growth and diet composition. A total of 1,489 finetooth sharks (830 female; 659 male) were collected from coastal waters of the nGOM between Apalachicola Bay, Florida (29.873° N and 84.514° W) and East Bay, Louisiana (28.959° N and 89.279° W) from June 2006 through October 2013. Peak reproductive development occurred during May/June for both males and females, which was followed by mating and an 11-12 month gestation period. …

Mississippi College Towns: Assessing The Geography Of Collegiate Culture, Jordan Glynn Moore

Master's Theses

This study assesses the appearance of collegiate culture on the landscape of college towns in Mississippi. The research will add to the understanding of this phenomenon by contributing more focused studies of college towns not yet explored. Refining and adding to the concept of a “college town” by identifying physical and cultural factors that characterize it will open opportunities and provide options that will serve as a gateway for more pointed cross-disciplinary research. Not only are these towns havens for geographic research, but also for cross-disciplinary research pursuits due to their unique cultural characteristics. Using U.S. Census-derived maps and a …

Effects Of A Twelve Week Aerobic And Strength Training Intervention On Chemotherapy-Induced Peripheral Neuropathy, Sherilyn M. Sommerville

Master's Theses

Chemotherapy is one of the most effective cancer treatments to date; however, it has the potential to produce debilitating life-long side effects. Chemotherapy-induced peripheral neuropathy is a side effect caused by toxic chemotherapy agents that deteriorate the peripheral nerves of the body. Research has suggested that aerobic and strength training may be able to alleviate some of the symptoms associated with chemotherapy-induced peripheral neuropathy. Some of the benefits of both aerobic and strength training include increasing blood and nutrient flow to the peripheral nerves, which could help restore sensation and alleviate the some symptoms of chemotherapyinduced peripheral neuropathy. However, to …

Sex-Related Alcohol Expectancies, Alcohol Consumption, And Risky Sexual Behavior Among African American College Women, Danielle P. Cottonham

Master's Theses

African American college women are experiencing sex-related negative consequences (e.g., contracting sexually transmitted diseases or human immunodeficiency virus, having an unplanned pregnancy) at disproportionate rates in comparison to Caucasian college women. Furthermore, African American college women are likely engaging in risky sexual behaviors (e.g., unprotected anal, vaginal, oral sex) that may be placing them at a greater risk for experiencing sex-related negative consequences. Research suggests that increased alcohol consumption is predictive of more risky sexual behavior among college women. Additionally, sex-related alcohol expectancies, or beliefs about the effects of alcohol on sexual behavior, are positively associated with increased alcohol consumption …

Congruence With College Major In Light Of Cognitive Influence And Work Roles, Erica L. Mathis

Master's Theses

Using Holland’s theory, the author examined moderators that may influence students’ academic success and satisfaction while accounting for cognitive influence. Data from 233 undergraduate students was analyzed using a series of hierarchical multiple regressions. The study sought to determine if student employment and the level of interest profile elevation were significant moderators of the relationship between congruence with college major and academic major satisfaction, as well as academic major success. Uniquely, academic major success was determined through GPA and a 10-subscale self-report measure. Cognitive influences were operationalized as positive and negative thinking and accounted for in all analyses. Correlation results …

The Scripture Of Helices, Jessica M. Ramer

Master's Theses

This thesis comprises poems written during my two years of study for the Master of Arts Degree in English with a creative writing emphasis. The majority of the poems are written in either a received or contemporary form, although a substantial minority are written in free verse. Many of the poems deal with extreme circumstances such as combat and imprisonment. Others address family stresses due to birth, death, remarriage, and clashes of values. Some poems have a religious emphasis while others are firmly rooted in the natural world. All, however, are explorations of human nature.

Social Interactions Among Two Males In A Captive Group Of Rough-Toothed Dolphins (Steno Bredanesis), Pepper Reid Hanna

Master's Theses

There is relatively little known about the social behavior of rough-toothed dolphins (Steno bredanensis) particularly in comparison to information on the Atlantic bottlenose dolphin, (Tursiops truncates). The purpose of the current study is to describe the social behavior of two juvenile male rough-toothed dolphins housed at Gulf World Marine Park in Panama City Beach, FL. Rates of affiliative social behaviors were greater between the two males within this group compared to the other pairs of dolphins. The males exhibited a high rate of association, calculated using the half-weight index. Following aggressive behavior within the overall group, the …

Fishery And Population Dynamics Of Mississippi’S Spotted Seatrout, David Arthur Dippold

Master's Theses

Spotted Seatrout (Cynoscion nebulosus) is the most popular recreational inshore fishery in Mississippi coastal waters. Because of the popularity of Spotted Seatrout in Mississippi as a recreational target and the magnitude of harvest, quantitative approaches to describe the population and fishery dynamics of the Mississippi stock are needed to continue the sustainability of the stock. Quantitative approaches to describing stock dynamics are useful because they can help describe population characteristics, assess the current status of the stock, and be used to evaluate alternative management strategies. In this thesis, I use a suite of quantitative methods to describe, evaluate, …

Attention-Deficit/Hyperactivity Disorder Symptoms As A Mediator Of The Relation Between Social Perception And Social Skills And Adaptability In Preschoolers, Brandi Michelle Ellis

Master's Theses

ADHD symptoms have been linked empirically to both social perception deficits as well as impairments in social skills and adaptability. The current study built on existing literature by examining whether social perception abilities indirectly predicted social skills and adaptability through ADHD symptoms in preschool-aged children. The sample consisted of 3- to 6-year-old children attending Head Start Programs and private preschools (N = 76). It was expected that social perception abilities would positively relate to both social skills and adaptability. It was also expected that these relations would occur indirectly through ADHD symptoms. Specifically, social perception abilities would relate negatively …

Effects Of Intermittent Pneumatic Compression On Leg Blood Flow And Vascular Function After Spinal Cord Injury, Lena Marie Cialdella

Master's Theses

Intermittent pneumatic compression (IPC) can increase leg blood flow (BF) in able-bodied persons. Whether IPC can alter leg BF, and improve vascular function in people with SCI is currently unknown. PURPOSE: Test the hypothesis that acute IPC will increase leg BF, and improve vascular function in SCI. METHODS: Participants (n=8; injury level: T3 and below; A.S.I.A. class A-C; age: 41±17 yrs) were recruited for a 1-hour IPC session performed in one leg (experimental leg; EXP), with the other serving as a control (CON). IPC consisted of sequential, foot-to-calf compressions (4-s inflate, 16-s deflate; 3 compressions/min). Posterior-tibial artery BF (Doppler-ultrasound) was …

The Effects Of Errorless Compliance Training Interventions On Compliance Behavior On Students In The Home And Generalization In The School Setting, Hannah Jeanne Cavell

Master's Theses

Errorless Compliance Training (ECT) is a procedure used to lessen disruptive behavior using a gradual and noncorecive approach. In this study, parents of three school-aged children who demonstrated high levels of disruptive behavior in the home and the classroom were trained on the ECT procedure. ECT sessions took place in the home, with parents delivering requests. Generalized effects of ECT were assessed in the school setting. Baseline data were used to arrange requests into grouped Levels, ranging from Level 1 (requests of which individual is typically compliant) to Level 4 (requests in which individual is typically noncompliant). Using the ECT …

Predicting Dna Methylation State Of Cpg Dinucleotide Using Genome Topological Features And Deep Networks, Yiheng Wang

Master's Theses

The hypo- or hyper-methylation of the human genome is one of the epigenetic features of leukemia. However, experimental approaches have only determined the methylation state of a small portion of the human genome. We developed deep learning based (stacked denoising autoencoders, or SdA) software named “DeepMethyl” to predict the methylation state of DNA CpG dinucleotides using features inferred from three-dimensional genome topology (based on Hi-C) and DNA sequence patterns. We used the experimental data from immortalised myelogenous leukemia (K562) and healthy lymphoblastoid (GM12878) cell lines to train the learning models and assess prediction performance. We have tested various SdA architectures …

Numerical Development And Optimization Of A Phase Change Material Solar Thermal Storage Unit System Model, Jared Tower

Master's Theses

In this work, the feasibility of a phase change material (PCM) thermal storage unit is determined, and the design is then optimized to minimize the time it takes for the PCM to completely melt. The PCM provides a large energy density due to its characteristically large heat of fusion, but has a low thermal conductivity, leading to slow transient responses. Thus, a heatsink is employed to increase the melt rate. The heatsink is analyzed using three different methods to determine which method provides the best results in the least amount of time. First, SolidWorks’ simulation tool with a variable specific …

Ism S-Band Cubesat Radio Designed For The Polysat System Board, Craig Lee Francis

Master's Theses

Cal Poly’s PolySat CubeSat satellites have begun to conduct more complex and scientifically significant experiments. The large data products generated by these missions demonstrate the necessity for higher data rate communication than currently provided by the PolySat UHF radio. This thesis leverages the proliferation of consumer wireless monolithic transceivers to develop a 250kbps to 2000kbps, 2W CubeSat radio operating within the 2.45GHz Industrial, Scientific, and Medical (ISM) radio band.

Estimating a link budget for a realistic CubeSat leads to the conclusion that this system will require a large deployable CubeSat antenna, large earth station satellite dish, and a fine-pointing attitude …

Optimization Of Rfid System Coverage In A Manufacturing Environment, Scott D. Malatesta

Master's Theses

This paper compiles existing ideas, theories, and experiments across multiple disciplines to provide guidance for a company looking to implement an optimal RFID system in their production facility. The desire is to maximize the information received by the system while minimizing the cost. Four potential layouts of RFID antennas, two with overlapping antenna coverage and two with non-overlapping layouts, are first analyzed to understand the special coverage and the number of antennas required. The value of information is then quantified to determine whether higher coverage layouts are worth the additional costs associated with the higher number of antennas required. It …

Pre- And Post-Partum Whistle Production Of A Bottlenose Dolphin (Tursiops Truncatus) Mother-Calf Dyad, Audra Elizabeth Ames

Master's Theses

Whistle use pre- and post-partum in an Atlantic bottlenose dolphin (Tursiops truncatus) mother-calf dyad has rarely been studied. The current study is the first to investigate signature whistle production by the mother pre- and post-partum, as well as whistle use by other members of the social group during calf development, and how exposure to these whistles may affect the calf’s vocal repertoire. Findings showed that the mother increased her rates both pre- and post-delivery, while other group members produced their whistles at decreased rates until the calf’s second week of life. After the calf’s second week, whistle rates of …

The Dark Triad And Hexaco Model Of Personality In Relational Aggression, Niki M. Knight

Master's Theses

Past research has linked relational aggression (RA) to many forms of psychological maladjustment among children and early adolescents. Although less is known about RA among emerging adults, there is a growing body of research demonstrating a number of adverse correlates. This literature has sparked an interest in examining the role of personality in RA. Most investigations to date have focused on the Five Factor Model; however, the six factor HEXACO model of personality (Ashton et al., 2004) may offer some advantages in studying RA. Moreover, the manipulative and often covert nature of RA among emerging adults has theoretical overlap with …

Parenting Practices And Young Adults’ Emotional Distress: The Moderating Roles Of Family Structure And Race, Nathan Alexander Winner

Master's Theses

Authoritarian parenting practices are more common among African American families, and appear to include fewer disadvantages in regards to child outcomes compared to White/non-Hispanic families who use these same practices. Little is known about why these racial differences occur, although family structure may play a role. The present study sought to understand the role of family structure and race in moderating the effects of parenting practices on college student mental health outcomes. College students reported on the parenting practices of their caregivers, as well as their race, family structure, characteristics of their familial environment, and socioeconomic status. Levels of depression, …

Fire And Fuels: Vegetation Change Over Time In The Zuni Mountains, New Mexico, Luke Wylie

Master's Theses

The Zuni Mountains are a region that has been dramatically changed by human interference. Anthropogenically, fire suppression practices have allowed a buildup of fuels and caused a change in the fire-adapted ponderosa pine ecosystem such that the new ecosystem now incorporates many fire-intolerant species. As a result, the low-severity fires that the ecosystem once depended on to regenerate the forest are much reduced, and these low-severity fires are now replaced by crown-level infernos that threaten the forest and nearby towns. In order to combat these effects, land managers are implementing fuel reduction practices and are striving to better understand the …

Effects Of A Brief Mindfulness Induction On Death-Related Anxiety, David Matthew Schultz

Master's Theses

Terror management theory postulates that the behavior and beliefs of individuals are influenced on some level by an underlying aversion to death. Mortality salience, the conscious awareness of one’s own impending death, creates behavioral changes in individuals compared to non-mortality salient individuals. These changes in behavior are referred to as distal and proximal defense mechanisms. Relatively little research has investigated mechanisms to buffer effects of mortality salience. Mindfulness refers to a conscious awareness and acceptance of moment-to-moment experiences. By allowing individuals to take a regulated view of difficult situations, mindfulness may attenuate the negative effects of mortality salience. The present …

Crops Or Crafts? Changes In Land Use In The Imbabura Valley Of Ecuador, Christopher Richard Hair

Master's Theses

In rural societies where urbanization and modernization are contributing to rapid growth, changes in land use can both reflect and bring about broader changes within a community. This study seeks to investigate changes in land use in the Imbabura valley of Ecuador from the perspective of the local inhabitants. To accomplish this, three data collection techniques were employed: repeat photography, ethnographic interviews, and archival research. Repeat photography involves re-photographing historic photographs from the original site. A combination of 35 historic photographs taken in the 1950s were re-photographed during the summer of 2015. The resulting repeat photo pairs were used in …

Student Perceptions Of Mentally Ill Offenders, Kimberly Nicole Rayborn

Master's Theses

Since deinstitutionalization, the responsibility for mentally ill members of society has shifted to the criminal justice system in a process of trans-institutionalization or “criminalization of mental illness” (Slate & Johnson, 2008). Though various groups have been studied to ascertain their perception of mentally ill individuals and offenders, previous research focuses largely on students of psychology, social work, and medicine. Little research has been conducted regarding the perceptions of students of criminal justice toward mental illness, despite the increasing involvement of the criminal justice system in treating and handling mentally ill individuals in the past thirty years. This exploratory research serves …

Anger And Sadness Rumination And Their Impact On Momentary Changes In Impulsivity And Pain Tolerance: Implications For The Development Of Suicide Risk, Keyne Catherine Law

Master's Theses

Recent research in suicide has called for an increased focus on factors that facilitate an individual’s transition from suicidal ideation to action (Klonsky & May, 2014). Rumination, the repetitive fixation on negative emotional material, has been associated with not only increased suicidal ideation but also a history of self-injury and suicide attempts (Morrison & O’Connor, 2008), suggesting that it may contribute to the ability to inflict lethal and non-lethal self-harm. Given that past research has found physiological differences between low (ex. sadness) and high (ex. anger) arousal negative affective states, the present thesis project sought to examine the effects of …

Geometric Energies For Haptic Assembly, Morad Behandish

Master's Theses

Haptic-assisted virtual assembly and prototyping has seen significant attention over the past two decades. However, in spite of the appealing prospects, the adoption has been slower than expected. Putting hardware limitations aside, the main roadblocks faced in software development can be traced to the lack of effective and efficient computational models. Such models must 1) accommodate the inherent geometric complexities faced when assembling objects of arbitrary shape; and 2) conform to the computation time limitation imposed by the frame rate requirements---namely, 1 kHz for haptic feedback compared to the more manageable 30-60 Hz for graphic rendering. The fulfillment of these …

Exploring The Experiences Of Novice Athletic Trainers As They Gain Role Inductance Into Their First Full-Time Position, Mclain M. Whitney

Master's Theses

Context: While current literature suggests novice athletic trainers enter the workforce with the necessary clinical skills and experience to begin practice, little is known in how they handle other aspects of their job or life outside of the workplace.

Objective: To examine the level of preparedness and quality of work-life balance of recently-credentialed athletic trainers and examine the challenges they face in the professional socialization process.

Design: Qualitative Study.

Setting: I conducted semi-structured phone interviews with all participants.

Patients or Other Participants: A total of 20 recently-certified (within past four years) athletic trainers (12 women, 8 men) working within the …

Preschool Predictors Of School-Age Academic Achievement In Autism Spectrum Disorder, Lauren Miller

Master's Theses

Objective: Characterization of academic functioning in children with autism spectrum disorder (ASD), particularly predictors of achievement, may have important implications for intervention. The current study aimed to characterize achievement profiles, confirm associations between academic ability and concurrent intellectual and social skills, and explore preschool predictors of school-age academic achievement in a sample of children with ASD.

Method: Children with ASD (N = 26) were evaluated at the approximate ages of two, four, and ten years. Multiple regression was used to predict school-age academic achievement in reading and mathematics from both concurrent (i.e., school-age) and preschool variables.

Results: Children with …

Analysis Of Transit Oriented Development Compatibility For Light Rail Station Areas Adjacent To U.S. Interstate Freeways, Eric D. Dorsey

Master's Theses

In 2006, the city of Denver completed a major phase of the T-REX project that included expanding a Light Rail Transit (LRT) system, building 13 stations along the corridors of Interstates 25 and 225. The expansion brought mixed concerns about whether locating the system alongside interstate freeways would produce transit-oriented developments (TOD), or if it intended to have stations that serve multiple purposes, some functioning as destinations and others serving as feeder stations to generate ridership for the system. This prompted a study to (1) create a typology of station areas and determine what type of station areas are located …

The Use Of Cone Beam In Private Dental Practices In The United States: Cost And Reporting Patterns, Andrew J. Pakchoian Dds

Master's Theses

No abstract provided.