Digital Commons Network^™

Physiological And Psychological Responses To 911 Emergency Tapes, Jackie Hammelman

Theses and Dissertations

The news has become a central part of daily culture in the United States and provides up to date information regarding a vast array of topics from weather to war. A specific aspect of the news, emergency 911 tapes, and their influence on viewers' physiological and psychological health was investigated. Research regarding the relationship between physiological arousal and exposure to brief traumatic stimuli, as well as research addressing the development of pathological psychiatric symptoms are discussed in the literature review. This study examined the relationship between exposure to 911 emergency tapes, physiological arousal, and symptoms of psychopathology while considering the …

Atmospheric Patterns And Asian Typhoon Landfalls, Ivetta Abramyan

Theses and Dissertations

The Western North Pacific Ocean (WNP) produces more frequent and intense tropical cyclones (TC) than anywhere else in the world, and these storms greatly impact society. This study examines synoptic scale atmospheric patterns and their effects on landfalling typhoons in Japan, Taiwan and Vietnam using composite analysis at upper and mid-levels of the atmosphere, as well as analyzing teleconnection impacts on tropical cyclone frequency, duration and intensity.

Examined Best Track data (1946-2010) shows an increased likelihood of Taiwan landfalls earlier in the season, Japan landfalls mid-season, and Vietnam landfalls towards the end of the typhoon season. The formation locations also …

Maternal Parenting Stress In Autism, Autism Associated With Fragile X, And Fragile X Alone: An Examination Of Associated Child And Maternal Factors In Three High-Risk Groups, Julie Mcelrath Kellett

Theses and Dissertations

The current study examined the association between specific child and maternal factors and parenting stress in three high-risk groups of mothers - mothers of boys diagnosed with idiopathic autism (IA), mothers of boys diagnosed with autism spectrum disorder (ASD) associated with fragile X syndrome (AFXS), and mothers of boys diagnosed with fragile X syndrome (FXS) alone. These three groups of mothers are thought to share some degree of genetic vulnerability to stress, as well as exposure to varying levels of challenging child behavioral characteristics. Theories of parenting stress incorporate multiple components, including parent, child, and parent-child interaction factors. The current …

Using Multivariate Pattern Analysis To Identify Conceptual Knowledge Representation In The Brain, Jing Wang

Theses and Dissertations

Representation of semantic knowledge is an important aspect of cognitive function. The processing of concrete (e.g., book) and abstract (e.g., freedom) semantic concepts show systematic differences on various behavioral measures in both healthy and clinical populations. However, previous studies examining the difference in the neural substrates correlating with abstract and concrete concept representations have reached inconsistent conclusions. This dissertation used multiple novel data analyses approaches on functional magnetic resonance imaging (fMRI) data, to investigate representational differences of abstract and concrete concepts and to provide converging evidence that the representations of abstract and concrete semantic knowledge in the brain rely on …

The Impact Of The Perceptions Of Fathering On Adult Children's Emotional Well-Being And Satisfaction With Life, Abraham John Bilyeu

Theses and Dissertations

The purpose of the present study was to examine how perceptions of one's father figure impacted reported levels of depression, anxiety, stress, alexithymia, and satisfaction with life. Participants reported that as negative perceptions of their father figure increased so did reported levels of depression, anxiety, and stress. Further, negative perceptions of one's father figure were negatively correlated with life satisfaction, such that as negative perceptions of father increased ones reported satisfaction with life decreased. Participant age was also positively correlated with perceptions of their father, whereas age increased, so did a positive view of one's father figure. When the Attitude …

Microwave Tomography Using Stochastic Optimization And High Performance Computing, Michael William Holman

Theses and Dissertations

This thesis discusses the application of parallel computing in microwave tomography for detection and imaging of dielectric objects. The main focus is on microwave tomography with the use of a parallelized Finite Difference Time Domain (FDTD) forward solver in conjunction with non-linear stochastic optimization based inverse solvers. Because such solvers require very heavy computation, their investigation has been limited in favour of deterministic inverse solvers that make use of assumptions and approximations of the imaging target. Without the use of linearization assumptions, a non-linear stochastic microwave tomography system is able to resolve targets of arbitrary permittivity contrast profiles while avoiding …

Inhibition Of The Ysc Type Iii Secretion System Of Yersinia Pestis By Compound D And Interaction Of Type Iii Secretion System Needle Proteins With Host Receptors, Danielle L. Jessen

Theses and Dissertations

The type III secretion system of gram-negative bacterial pathogens is a major virulence factor and functions to modulate host immune responses. Immune modulation occurs in many ways, including direct injection of effector proteins or indirect methods such as the detection of bacterial components by host immune receptors. Knowledge of these immune modulations allows for development of treatment options in an ever-increasing antibiotic-resistance climate. The studies presented here explore both areas of immune modulation. We identify Compound D as a potent inhibitor of the type III secretion system of Yersinia pestis. Through evaluation of effector secretion by bacteria grown in the …

The Effect Of Health Expenditure And Other Determinants On Health Outcomes, Yi Liu

Theses and Dissertations

A major question in determining health policy is to what extent the additional health care expenditure yields benefits in the form of improved health outcomes. However, establishing relationships between them is very complex, because there are numerous factors besides health expenditure that could contribute to health outcomes, and some data especially individual level nutrition and exercise data, are nearly impossible to gather. Another difficulty involves which indicator we should choose to measure health outcomes.

This study examines life expectancy, all-cause age adjusted mortality rates and infant mortality as the "output" of the health care system, and health expenditure, various life-style, …

Exploring The Impact Of Zebra Mussels (Dreissena Polymorpha) On Residental Lakeshore Property Values In Otter Tail And Becker Counties, Minnesota, Spencer Crowley Mcgrew

Theses and Dissertations

Aquatic invasive species are a major problem in Minnesota. Aquatic invasive species disrupt ecosystems, limit lake recreation, and reduce lakeshore property values. They are expensive to manage, and often impossible to eradicate once established. In this study, I am asking this question: What is the economic impact, in terms of residential shoreline property values, of the introduction of the invasive zebra mussel (Dreissena polymorpha) into large and popular freshwater lakes in west central Minnesota?

Past studies comparing lakeshore property values based on environmental factors such as water quality, clarity, lake size, and depth have shown that these environmental amenities are …

Ticks And Tick-Borne Pathogens In North Dakota, Nathan Russart

Theses and Dissertations

In 2010 a statewide survey of ticks and tick-borne pathogens was conducted in North Dakota. Ticks were collected from the four eco-regions in the state by flagging for questing adults and by collecting feeding immature ticks from trapped small mammals. I collected 1762 individual ticks representing five species: Dermacentor variabilis (1449), Ixodes scapularis (307), Ixodes woodi (3), Ixodes angustus (2), and Amblyomma americanum (1). Dermacentor variabilis were collected in all areas of the state while I. scapularis were restricted to the northeast portion of the state. This provided sufficient evidence that I. scapularis have established populations within the state. Ixodes …

A Case Study Of Elementary Teachers' Conceptions Of Environmental Literacy In Relationship To A Tall Grass Prairie Restoration Project, Teresa Jayne Shume

Theses and Dissertations

The purpose of this qualitative case study was to describe seven elementary teachers' conceptions of environmental literacy in relationship to a tall grass prairie restoration project and to explore ways in which the tall grass prairie restoration project for third grade contributed to enhancing educational learning experiences. The research questions were: 1. What are teachers' conceptions of environmental literacy for third grade students? 2. How does the prairie restoration trip contribute to teachers' capacity to teach for environmental literacy of third grade students? 3. What is the pedagogical value of the prairie restoration project? The theoretical frameworks underpinning this study …

The Impact Of Continuous Prenatal And Early Postpartum Maternal Vitamin D Supplementation On The Vitamin D Status Of Exclusively Breastfed Infants, Doria K. Thiele

Theses and Dissertations

In the United States, at least 50% of breastfeeding mothers are vitamin D deficient, increasing risk for vitamin D deficiency in exclusively breastfed infants. A gap in knowledge exists regarding best practices in maternal vitamin D supplementation during pregnancy and lactation that will yield adequate infant vitamin D levels. The objective of this study was to identify the combined effect of maternal prenatal and postnatal vitamin D supplementation on vitamin D transfer to exclusively breastfed infants. Additionally, due to the immune modulating effects of vitamin D, maternal pro- and anti-inflammatory cytokines were measured across pregnancy and the postpartum. A double-blind, …

Online Self-Injury Forums, Social Support, And Psychological Distress, Kirsten Louise Williams

Theses and Dissertations

Non-suicidal self-injury (NSSI) is a behavior being seen with increasing frequency among clinicians and the general population. Internet forums where people who engage in the behavior may discuss topics related to NSSI have become widespread. The effects of those websites on people who engage in the behavior have not been researched. This study used structural equation modeling to better understand the relationship between identification with these groups, time online, comfort discussing NSSI, social support, and psychological distress. The final model suggests a complicated relationship between Internet use and offline effects. Identification with such an online group appears to lead to …

Historical Genetic Analysis Of Horned Lark (Eremophila Alpestris) Specimens From The Prairie Pothole Region, Gregory Omar Cain

Theses and Dissertations

The Horned Lark (Eremphila alpestris) is a generalist bird species with a global distribution. A previous phylogeographic study of this species from western North America has been completed and identified three distinct mitochondrial DNA clades. This study aims to genetically characterize Horned Larks from the North Dakota region using the mtDNA NADH dehydrogenase subunit 2 (ND2) gene. Horned Larks were sampled from museum collections, with ages ranging from 13 - 120 years old. 5mm x 1mm feather cuttings were removed using a non-invasive feather sampling method from each specimen for genetic analysis.

This sampling method was verified on 15 total …

Targeted Overexpression Of Metallothionein In Endothelial Cells Mitigates Pulmonary Alveolar Basement Membrane Thickening In Transgenic Diabetic Ove Mice: An Unbiased Tem Morphometric Analysis, Holly M. Hewitt

Theses and Dissertations

Damage to small blood vessels in diabetes mellitus (DM) is largely the result of hyperglycemia-driven oxidative stress. This is manifested morphologically by capillary basement membrane (BM) thickening, the hallmark feature of chronic complications of DM. In an effort to demonstrate pulmonary alveolar BM (PABM) thickness increase in DM and to demonstrate for the first time, mitigation of the increase utilizing antioxidant therapy, we crossed the severely diabetic transgenic mouse (OVE) with Jtmt, our recently developed transgenic animal model that overexpresses the antioxidant metallothionein (MT) in endothelial cells. Unbiased TEM morphometry demonstrated that PABM widths in diabetic (OVE) mice were significantly …

Should Girls Play Hockey With Boys? Perspectives From The Usa Women's Olympic Hockey Team, Jocelyne Nicole Lamoureux

Theses and Dissertations

An exploratory descriptive analysis on USA Women's Olympic hockey team player's perspectives on playing with boys during their developmental years was conducted. Fifteen elite women American hockey players completed a questionnaire about their experiences playing on boys' teams, making the transition to girls' hockey, and how they thought playing with boys effected their physical and psychological development. Data analysis included both qualitative and quantitative data. Results showed that all participants had played with both boys and girls. They all started playing on boys' teams and transitioned to girls' teams mainly for safety reasons. Participants reported positive effects from playing with …

Re:Creation, Heather Boone

Theses and Dissertations

This intent of this project is to explore the importance of handmade objects in the age of information.

A Critical Review Of Endometriosis Pathology, Brittany Lauren Cureton

Theses and Dissertations

Endometriosis is a complex, multifactorial, reproductive disorder present in approximately 10-15% of adult women between the ages of 25-35. This disorder occurs when endometrial glands and stroma grow ectopically on the surface of the ovaries, pelvic peritoneum, fallopian tubes, and the uterus. Endometriosis causes varying degrees of painful symptoms and infertility in infected individuals. Three main theories of endometrial accumulation attempt to explain the etiology of this elusive disease. There have been various staging of endometriosis symptoms that attempt to standardize classification as well as predict pain and infertility. Angiogenesis, necessary to the survival of endometrial tissue, along with immune …

Enantioselective Hydrogenation Of Α-Methylcinnamic Acid Over Pd/Al2o3: A Spectroscopic And Kinetic Study, Xiaojing Sun

Theses and Dissertations

Hydrogenation of C=C in α-methylcinnamic acid (MCA) is studied by both kinetic and spectroscopic method. Kinetic study was in a semi-batch reactor. The reaction activity is strongly solvent dependent, while selectivity remains almost unaffected. The reaction is zero order in hydrogen pressure and first order in MCA. The presence of cinchonidine does not affect the reaction order with respect to either acid or H2 pressure, but has a significant inhibiting effect on the reaction rate. The catalyst exhibits stable activity during the reaction with no sign of deactivation. The adsorption and hydrogenation in dichloromethane, isopropanol and 1, 4-Dioxane over the …

Using Singular Value Decomposition In Classics: Seeking Correlations In Horace, Juvenal And Persius Against The Fragments Of Lucilius, Thomas Whidden

Theses and Dissertations

For the purpose of this dissertation, the hypothesis is posited that a programmatic correlation of the poems of Lucilius and the other Satirists reveals a detailed and dense level of intertextuality, especially in those poems which scholars already understand to allude to the genre's inventor. In addition to those poems which are discussed in secondary literature, we have discovered other poems which correlate highly with the corpus of Lucilius, but have been largely ignored. To demonstrate this fact I have devised a method using Singular Value Decomposition. That method is able to discern this subtle intertextuality in both the texts …

A Constructivist Examination Of Counselors' Conceptualization Of "Sexuality": Implications For Counselor Education, Wenndy Dupkoski Mallicoat

Theses and Dissertations

Due to the dialectical dilemma between meeting the demands of the managed health care industry through the adherence to the medical model while promoting an emphasis on wellness, the counseling profession does not promote a consistent definition of sexuality. Using a qualitative, phenomenological approach from a constructivist lens, this study was conducted to examine the construct "sexuality" and "sexuality counseling" from counselors' perspectives. One synchronous online focus group and two online individual interviews were conducted with counselors predominantly in the Southeastern United States. Themes from the data include: Sexuality is multi-dimensional; sexuality is developmental; sexuality counseling is dialectical; and sexuality …

Decision-Support Tool For Residential Pesticides In The South Carolina Coastal Zone, Lisa Claire Wickliffe

Theses and Dissertations

The Environmental Protection Agency (EPA) is charged with ensuring pesticides do not pose unreasonable adverse risks to the public and to the environment. This is a daunting task with over one billion pounds of pesticides used across the nation each year. The U.S. EPA estimates approximately 75% of all pesticide usage in the U.S. are agricultural while 25% is for home, garden, industrial, commercial, and government applications. One area of application of concern to public health and the environment regarding misuse of pesticides is in residential settings. In these instances, individuals may not have any knowledge of identifying whether they …

Geographical Proximity To Health Facilities And Breast Cancer Morbidity And Mortality Among Women In South Carolina's Best Chance Network, Leepao Khang

Theses and Dissertations

Death rates for breast cancer have steadily decreased in women due to early detection, such as mammography, and improved treatments. Despite the benefit of mammography, many women are not up-to-date on screening and do not receive timely follow-up after abnormal mammogram finding. Breast cancer is a major contributor to morbidity and mortality among women in South Carolina. To reduce the disproportionate burden of breast cancer and cervical cancer among women in South Carolina, the South Carolina Best Chance Network (BCN) was established to provide service delivery and ensures timely and complete diagnostic follow-up and treatment initiation for underserved women.

The …

Public Education In A 'Religious State': South Carolina Responds To Engel V. Vitale (1962), Abington V. Schempp (1963), And Murray V. Curlett (1963), Jessica Kathleen Sweeney

Theses and Dissertations

Since its inception in the mid-1800s, public education has been one of the most contested arenas in American life. Among the battles fought in this domain, none have been more heated than the appropriate role of religion in the public schools. From the 1844 Philadelphia Bible Riots, to the 1925 debate over Darwinism and Creationism, to recent skirmishes regarding the Pledge of Allegiance, these and other disputes have been the subject of considerable scholarship. In South Carolina, however, one controversy regarding the intersection of religion and public education has received little attention, namely the trio of harshly criticized Supreme Court …

Perceptions Of Breast Cancer-Related Stigma And Genetic Knowledge Among Latina Women: El Mejor Entendimiento Del Miedo., Jade Cognetti

Theses and Dissertations

Purpose: Breast cancer is the leading cause of cancer death among Latina women, with BRCA1/2 gene mutations accounting for a commensurate proportion of breast/ovarian cancer in Latina women as compared to non-Latina women. Despite this statistic, it has been shown that Latino populations exhibit low awareness and use of genetic services and that they hold culturally-related beliefs which stigmatize cancer. We hypothesized that a simple, culturally-tailored educational flier would improve genetics knowledge as well as decrease breast cancer-related stigma among Latina women in our sample. Method: Two groups of Latina women (N = 19) were provided with a pre-survey, educational …

Childish Figuring: The Child As Symbol And Actor In Lillian Smith's Killers Of The Dream And James Agee's Let Us Now Praise Famous Men, Katherine Eveline Upton

Theses and Dissertations

In this thesis, I examine the presentation of the child in James Agee's Let Us Now Praise Famous Men and Lillian Smith's Killers of the Dream as part of a rhetoric of growth. Both Agee and Smith present southerners as psychologically immature due to their traumatic childhood experiences of sexism, racism and poverty. Childhood is a recurring theme in both texts. Agee and Smith present childhood as a biological, developmental stage and a metaphor for growth in their texts. The child is a real, contextually-specific figure, drawn from Agee's and Smith's observations of children in Depression-era society. Images of children's …

(Mis)Classification And Creole Identity In Alice Dunbar-Nelson's The Goodness Of St. Rocque, Jillian Weber

Theses and Dissertations

particular, it examines The Goodness of St. Rocqueand New Orleans as a site of racial and ethnic confluence. Dunbar-Nelson deals closely with racial and ethnic identities of Creoles in New Orleans during the late nineteenth-century and attempts to show the ways in which markers of ethnicity and connections to other countries upset the black-white racial binary being forced upon residents of New Orleans by outside forces. Dunbar- Nelson uses spatial and sociocultural characteristics of space to comment on the ways in which classification is imposed upon her characters, but shows the disruptive and often dangerous consequences of this imposition. Through …

The Scope Of The Bis-Urea Macrocycle Assembly Motif, Michael F. Geer

Theses and Dissertations

From the formation of rock candy crystals, to the functionality of DNA in the cell, to the cosmic dust throughout the universe, supramolecular chemistry has a great impact and importance in the world around us. In this thesis, we explore the supramolecular interactions and self-assembly of bis¬-urea macrocyclic systems and investigate how their structure and assembly influences bulk properties and functionality. Specifically, in chapter one, we review the factors that guide, limit, and define supramolecular structures from the atomic to the centimeter scale.

In chapter two, we investigate the incorporation of benzophenone, a well known triplet sensitizer, within a bis-urea …

Decoding Prmt1: Studies On The Catalytic Mechanism, Regulation, Inhibition, And Crosstalk Of Prmt1-Dependent Methylation, Heather L. Rust

Theses and Dissertations

Arginine methylation is catalyzed by the protein arginine methyltransferase (PRMT) family of enzymes, which transfer a methyl group from S-adenosylmethionine (SAM) to the guanidinium group of an arginine residue. This reaction first produces monomethylated arginine (MMA) that can then be further methylated to produce either asymmetrically dimethylated arginine (ADMA) or symmetrically dimethylated arginine (SDMA). There are nine PRMT family members described to date, with PRMT1 as the predominant member, suggested to be responsible for ~85% of asymmetric dimethylation. In addition, PRMT1-dependent methylation likely plays a significant role in a plethora of diseases (e.g., cancer, heart disease, and ALS). These observations …

Single Crystal To Single Crystal Polymerization Of A Columnar Assembled Diacetylene Macrocycle, Weiwei Xu

Theses and Dissertations

Organic tubular materials have attracted lots of attentions for their potential applications as nanoscale fluidic transport systems, specific ion sensors, molecular sieves and confined molecular reaction containers. While conjugated polymers, due to delocalized Pi electrons, exhibit interesting solar cells and sensors applications. In this thesis, we developed a conjugated polymer which combines the attributes of conjugated polymers with tubular materials, which should have great potential to work as a sensing material.

We reproduced and scaled-up the synthesis of a polymerizable macrocycle 1 that contains two rigidly separated diacetylene units. We found that, through hydrogen bonding, 1 can assemble into columnar …