Digital Commons Network^™

The Effects Of Friendship And Discussion On Individuals' Responses To Anti-Sugary Drinks Television Ads, Kaitlin R. Lilienthal

Theses and Dissertations

The current study tested if friendship and discussion would interact with anti-sugary drinks television ads exposure to promote attitudes, intentions, and behaviors consistent with sugary drinks consumption reduction. College students (N= 109) viewed anti-sugary drinks ads either with or without a friend, and either discussed or did not discuss the ads after viewing them. Changes in baseline sugary drinks health knowledge, attitudes toward reducing sugary drinks consumption, sugary drink consumption social norm perceptions, and intentions to reduce sugary drinks consumption were examined at post-exposure and one week follow-up. Changes in baseline self-reported sugary drinks consumption were also examined at one …

Artificial Soil Formation And Stabilization Of Material Cycles In Closed Ecological Systems For Mars Habitats, Joshua D. Borchardt

Theses and Dissertations

Scientists are increasingly pressured to investigate novel ways in which to feed astronauts for the first mission to Mars in the 2030s. It is the aim of this thesis to conduct a preliminary investigation for soil formation of NASA JSC Mars-1A Regolith Simulant in an environmentally closed ecosystem to simulate plant growth within these initial habitats, and the prospect of soil formation from a Mars parent material for agricultural purposes. The rhizosphere and plant stress will be the main regions of research focus. It is hypothesized rhizosphere activity will determine the rate of stable soil formation adequate to support the …

Economic Attainment By Religion, Emma Wetten

Theses and Dissertations

Religion is an important determinant of the socioeconomic behavior of individuals. This thesis is an attempt to describe how various religious denominations in the United States have differing levels of education, different patterns in college degree attainment, and different household incomes even when certain demographic factors are controlled. This thesis describes differences in economic outcomes among religions and uses regression models of college attainment and average years of education with demographic controls including race, gender, region, and parents' educational attainment from the early 1980s through 2012. The results suggest that differences in economic attainment between American religious denominations in terms …

Songbird Response To Mixed Ungulate Herd Reduction Through Changes In Vegetation At Sullys Hill National Game Preserve, Bethany J. Walters

Theses and Dissertations

Big game management traditionally focused on single species management with less emphasis, until recently, on community interactions. Sullys Hill National Game Preserve (SHNGP) is a 678 hectare preserve where extirpated Plains bison (Bison bison) were reintroduced along with Rocky Mountain elk (Cervus elaphus) and white-tailed deer (Odocoileus virginianus). These large ecosystem engineers have been managed at varying densities within a fenced area of deciduous woods, wetlands, and native prairie since 1918. Grazing, browsing, and rubbing by ungulates, along with additional refuge management prescriptions (e.g. prescribed fire), shape the understory and midstory and in turn …

Novel Approaches Investigating Predisposition For Maternal Group B Streptococcus Colonization, Michelle Lynn Wright

Theses and Dissertations

Group B streptococcus (GBS) is the leading cause of infectious neonatal morbidity and mortality in the United States. Maternal GBS colonization is the primary risk factor associated with neonatal infection. However, maternal risk factors for GBS colonization are ambiguous. A conceptual framework of gene-environment interactions guided the approach for this study analyzing DNA methylation, serum cytokines, and vitamin D levels. The purpose of this study was to identify potential maternal biomarkers associated with GBS colonization. Descriptive statistics were conducted to depict sample characteristics (n=42 pregnant women) and identify potential confounding variables including, but not limited to: medical history, race, weight, …

The Interplay Between Aging, Growth Hormone, The Methionine Pathway, And Epigenetic Methylation Marks And Mechanisms, Vanessa Louise Armstrong

Theses and Dissertations

Methylation reactions are important for the establishment and maintenance of epigenetic methylation tags on DNA and histone molecules that are critical for the development and life-long function of an organism. While epigenetics has been studied extensively during embryological development and age-related disease such as cancer, little is known about whether epigenetic methylation enzyme expression change in normally aging or long-living mammals. Because growth hormone (GH) plays an important role in determining the lifespan of many organisms, we have focused our studies on the long-living growth hormone deficient model the Ames dwarf mouse. We focused our studies on epigenetic methylation in …

A Ten-Year Study Of Earned Income Tax Credit Utilization In Western South Dakota: Where You Live Matters, Lizabeth Ann Diers

Theses and Dissertations

The Earned Income Tax Credit (EITC) is one of the largest government anti-poverty programs, helping low-income families to build and maintain economic security. The purpose of this mixed methods study was to determine if where taxpayers live in western South Dakota impacts the utilization of EITC. Results of analysis of tax return information, higher education accounting programs, and interview records were combined to answer the study questions.

Ten years of data (tax return averages) were retrieved from the Brookings Institution and were analyzed to determine if geography was a predictor of the likelihood of filing for EITC and the amount …

Impact Of Reverse Ethnocentrism On Competence Regarding Food Related Behaviors As A Function Of Attachment Style, Ethnic Identity, And Locus Of Control, Sheryl Holter Vogel

Theses and Dissertations

The present study investigated associations between attachment styles, locus of control (LOC), ethnic identity, and competence regarding food-related behavior (competence) among 168 White and 61 American Indian participants. An experimental manipulation was also conducted in which the concept of reverse ethnocentrism was tested. Attachment style accounted for the most significant variance of competence at 9% followed by ethnicity at 2%. Ethnic identity and LOC accounted for nonsignificant variance at 4% and less than 1% respectively. Prior to the experimental manipulation, results found competence was significantly negatively associated with low anxiety and high avoidance (dismissing attachment style), and American Indian participants …

The Role Of Authoritative Parenting In Type 1 Diabetes Adolescent Outcomes, Zach Radcliff

Theses and Dissertations

Due to psychosocial and hormonal changes, adolescents with Type 1 Diabetes (T1D) are at risk for poorer regimen adherence, quality of life (QOL), and glycemic control (HbA1c). Authoritative parenting (AP) supports youth development during the transition into adolescence. To date, the mechanisms behind authoritative parenting and better HbA1c are yet to be examined. Parent-youth dyads completed measures of authoritative parenting, adherence, and QOL. As hypothesized, more authoritative parenting related to higher socioeconomic status (SES; β = -.13, p = .04) rather than ethnicity. Further, more authoritative parenting related to better glycemic control via the mechanisms of higher youth QOL (β …

The Comparative Effectiveness Of Group Prenatal Care On Women's Psychosocial Health, Emily Heberlein

Theses and Dissertations

Background: High rates of adverse birth outcomes persist in the United States despite increased access to individual prenatal care (IPNC). Psychosocial factors influence birth outcomes and affect infant and child development and maternal functioning. Group prenatal care (GPNC) combines individual physical assessments and facilitated group education and support. Studies of GPNC show promising results, including lowered preterm birth rates, but the GPNC psychosocial mechanisms influencing birth outcomes are unclear.

Methods: Surveys at study enrollment (N=248), late pregnancy, and six weeks postpartum assessed psychosocial effects of each PNC model. Multiple regression models and planned moderator analyses tested whether GPNC participants had …

Anthropogenic Ecological Impacts Of 17th And 18th Century Chickasaw Through A Study Of Faunal Remains, Marybeth Harte

Theses and Dissertations

A diachronic analysis of five faunal assemblages from Chickasaw sites is carried out to evaluate their anthropogenic ecological impacts during the colonial time period (A.D. 1650-1750). Change in faunal exploitation, diversity measures and disturbance taxa frequencies are analyzed to gauge these impacts. A comparison with late Mississippian period faunal use provides a benchmark to examine how shifts in the cultural system initiated new ecological impacts. Results from the faunal analysis are also compared with reports of faunal utilization and landscape management practices in the historical record. These reports provide a basis for assessing change in prey preferences according to the …

Best Practices In The Management Of Pediatric Obesity In Primary Care Clinics, Lori Moseley

Theses and Dissertations

Obesity prevalence among children and adolescents has nearly tripled since 1980. Children and adolescents are at risk for developing the comorbidities seen in obese and overweight adults such as hypertension, type 2 diabetes, and sleep apnea. Traditional treatment for obese and overweight children involved counseling children and their families. Current recommendations include a comprehensive staged approach to weight management that includes prevention plus structured weight management, comprehensive multidisciplinary intervention and tertiary care intervention. Unfortunately structured weight management programs have not been widely available, leaving the primary provider with limited options.

The purpose of this project was to analyze the literature …

An Evolutionary Perspective On Infectious And Chronic Disease, John Eberth

Theses and Dissertations

The integration of evolutionary biology with traditional medicine can elucidate novel mechanisms of contemporary disease. Whereas the goal of traditional medicine is to treat and cure the proximate causes, evolutionary biology aims to understand the driving forces behind why humans are susceptible to disease. To form the basis of this hypothesis we postulate that modern man's current genetic information was programmed at a time, and in an environment, that is not relevant to today's human populations. The discordance between these genes of our ancestors and the environment of contemporary humans is thought to be a major reason for the increase …

The Use Of Social Media And The Impact Of Support On The Well-Being Of Adult Cystic Fibrosis Patients, Margaret Anne Faust

Theses and Dissertations

Cystic fibrosis (CF) is the most common, life-limiting autosomal recessive condition disorder of Caucasians. CF is a chronic condition that requires daily treatment of symptoms, the stress of which can have mental health consequences. Due to the potential for cross contamination of bacterial infections, individuals with CF are discouraged from meeting in person and must find other venues to receive support. Social media provides the opportunity for individuals with CF to communicate and provide support. We hypothesized a positive correlation between the patients' health-related quality of life and the amount of time spent on CF-related social media sites. We expected …

Lead Exposure And Crime, Tara Elaine Martin

Theses and Dissertations

While lead exposure during childhood has been linked to criminal activity later in life, prior research has failed to develop a theoretical foundation explaining why lead and crime rates are positively related at the aggregate level. Utilizing tract-level data, I examine the relationship among elevated blood lead level rates, levels of concentrated disadvantage, and crime rates. Through a biosocial approach, I explore the lead-crime relationship using a measure of concentrated disadvantage to account for the variations across tracts. Finally, I discuss the results of this study as well as implications for public policy and future research.

Hepatitis B, C Virus And Hiv Co-Infection Among Reported Female Cases In South Carolina, 2004 - 2011: An Epidemiological Analysis Of Pregnancy Outcomes, Afiba Manza-Azele Agovi

Theses and Dissertations

HIV, hepatitis B and C virus (HBV, HCV) are three of the most common blood-borne infections and they continue to be a major public health problem in the United States (US) and globally. It is not well understood if maternal infection with either HBV or HCV has an adverse impact on pregnancy outcomes as findings from previous studies have provided some mixed results. The overall goal of this study was to assess the risk of preterm birth, low birth weight (LBW), small for gestational age (SGA) and admission into neonatal intensive care unit (NICU) for babies born to HBV- and …

Food Insecurity And Physical Activity Among U.S. Populations, Quyen G. To

Theses and Dissertations

Objectives: Examine the association between food insecurity (FI) and physical activity (PA) in the U.S. population.

Methods: Accelerometry (PAM) and self-report PA (PAQ) data from NHANES 2003-2006 were used. Those aged less than six years or were older than 65 years, pregnant, with physical limitations, or with family income above 350% of the poverty line were excluded. FI was measured by the USDA Household Food Security Survey Module. Crude and adjusted odd ratios were calculated from logistic regression to identify the association between FI and adherence to the PA recommendation. Crude and adjusted coefficients were calculated from linear regression to …

Antibiotic Usage In Relation To Resistant Bacterial Infections And Liver And Kidney Cancer Outcomes In South Carolina, Prea Thathiah

Theses and Dissertations

Antibiotics are one of the most beneficial discoveries in medicine and public health. However, the use, overuse, and misuse of these drugs have led to increases in antibiotic resistant bacterial infections (ARI). Furthermore, previous epidemiological studies have linked antibiotic use to breast cancer, but these studies have not included effects on metabolic organs, such as the liver and kidneys. This dissertation investigates the role of antibiotic use in infections and liver and kidney cancers in the state of South Carolina. Using ecological study methods and Poisson regression to determine relative risk ratios, it was found that antibiotic use is a …

A Community-Driven Approach To The Development Of A Digital Decision Aid To Facilitate Informed Decision Making For Prostate Cancer Screening Among African-American Men In Communities Of Faith, Otis Lashaun Owens

Theses and Dissertations

Background: African American (AA) men are significantly more likely to die of prostate cancer (PrCA) than other racial groups. Therefore, it is critical to identify effective strategies for providing information about the risks, benefits, and uncertainties of PrCA screening and the importance of informed decision making (IDM). To assess whether a computer-based IDM decision aid (DA) for PrCA screening would be appropriate for middle-age and older AA men, this formative evaluation study examined participants (1) PrCA risk and screening knowledge, 2) decision-making processes for PrCA screening, and 3) usage of, attitudes toward, and access to interactive communication technologies (ICTs). The …

Characterization Of The Hippocampal Acetylcholine System In A Rodent Model Of Fetal Alcohol Syndrome, Amy Elizabeth Perkins

Theses and Dissertations

Fetal alcohol spectrum disorders (FASD) are a major public health concern, as it is estimated that 2-5% of children are exposed to alcohol at some point during prenatal development. FASD have been shown to cause damage to multiple brain regions, but research shows that the hippocampus is especially sensitive to alcohol exposure. This damage to the hippocampus explains, in part, deficits in learning and memory that are hallmark symptoms of FASD. The acetylcholine neurotransmitter system plays a major role in learning and memory, and the hippocampus is one of its main targets. This experiment used a rodent model of Fetal …

The Extent Of The Use Of Data-Driven Instruction Techniques In Middle School Instruction, Scheherazade Dedman

Theses and Dissertations

This study investigated whether data-driven instruction affects or informs strategies that middle school teachers use in their planning, teaching strategies, and assessments, and explored whether teachers use these data in order to make changes in their classroom and instruction. In addition, this study examined the types of data middle school teachers use in order to inform their instruction, whether the number of years taught had an effect on how they used data-driven instruction, and whether they found it effective. To this effect, teachers at a middle school in Southern California were asked to complete an online survey. This study provided …

Perceptions Of Humanity: College Students On Homelessness, Emily Ann Burdett

Theses and Dissertations

Initially focused on previous research regarding the demographics of the homeless population over the past three decades to develop a deeper understanding of issues homeless people face, a brief study was done to gather college students' beliefs regarding the homeless population and demographics of the students. It was found that ethnicity and political affiliation both had significant effects on the students' perceptions of homelessness. Beliefs in the causes of homelessness were effected by political affiliation. Ethnicity affected scores regarding students' willingness to affiliate with homeless individuals. Social Dominance Orientation scores also correlated negatively with Distributive Justice Beliefs of Others. No …

Measuring The Effect Of Weighted Devices On Exercise Enjoyment, Nicholas Kruse

Theses and Dissertations

Physical activity provides an important health benefit for both males and females. Seven out of every ten U.S. deaths are from chronic disease and many of those deaths could have been preventable. With a lack of physical activity and poor diet, chronic illnesses such as obesity, cancer, cardiovascular disease, and type II diabetes were reported, (CDC, 2004). There is a steep decline in exercise from high school to college, which indicates that exercise adherence in college students is an issue. In this study, three conditions were examined with students at the University of North Dakota going through a plyometric protocol …

Treatment Of Infectious Mastitis, Elizabeth Sandberg,

Theses and Dissertations

Mastitis is a complication of breast feeding encountered often by primary care providers. The goal of treating mastitis is not only resolution of the infection, but also the continuation of lactation so that both mother and child may continue to enjoy the innumerable health benefits of breastfeeding. The patient discussed in this case study is a first time mother who is exclusively breastfeeding, but whose planned change in feeding schedules places her at risk for developing mastitis as a result of engorgement or plugged milk ducts. This case report examines current recommendations and evidence for treatment of infectious mastitis. Attention …

The Psychometric Utility Of The Drug Abuse Screening Test Among Treatment-Seeking, Homeless Men, Brittany N. Winters

Theses and Dissertations

Homelessness in the United States is recognized as a grave societal problem with longstanding and pervasive implications. A substantial body of research has shown that substance use disorders occur at higher rates among homeless adults than among housed persons. Mental disorders, particularly depressive disorders, are also known to occur at substantially higher rates among the homeless. Given the prevalence of these conditions, it is important that clinicians working with homeless adults have access to reliable and valid assessment tools. The purpose of this study was to examine the usefulness of the Drug Abuse Screening Test-20 (DAST-20) in a sample of …

Developing C. Elegans As A Model To Study Type 2 Diabetes Mellitus, Jheesoo Ahn

Theses and Dissertations

Caenorhabditis elegans has been studied as a model organism in various areas of biomedical research because it shares many conserved functions at molecular and genetic levels with humans. Specifically, it is an ideal organism to study heterogeneous metabolic syndromes such as Type 2 Diabetes Mellitus (T2DM) as C. elegans can be used to delineate molecular pathways that are at the core of its problems. A growing number of populations worldwide are faced with chronic T2DM, which also manifests several complications, such as blindness, neuropathy and cardiovascular diseases. Currently, metformin is the first-line drug of choice administered to treat T2DM. While …

The Association Between The Social Context Of Mealtime, Children's Diet, Caregiver's Experiences With Discrimination And Household Food Insecurity, Michael Patrick Burke

Theses and Dissertations

The social context of mealtime---defined as the social interactions and practices during mealtime---plays an important role in children's diet. Household food insecurity disrupts or causes worry about the household food supply, and therefore may negate the positive effect of the social context of meals; however, little research has examined household food security and the social context of mealtime. The purpose of this study was to examine the association between various aspects of the social context of mealtime---dietary modeling, parenting style, eating together, mealtime screen time, and priority and atmosphere of mealtime---and dietary quality among children within food-insecure households. The results …

Examination Of Food Choice Motives: The Influence Of An Innovative, Interdisciplinary Learning Community Related To Environmental Sustainability, Kelly J. Billingsley

Theses and Dissertations

What and how much an individual eats largely defines his/her health. The most used dietary intervention models target individuals' concern for personal health, thereby undermining the interdisciplinary trajectory of the nutrition field. The purpose of this study was to compare the food choice motives of students enrolled in an interdisciplinary learning community (LCOM) to students enrolled in a non-integrated nutrition course and gain insight into student experiences with interdisciplinary nutrition education. A two-phase sequential mixed methods design was used. The first phase compared the personal health and ethical concern motives of the LCOM (n = 13) and non-integrated students (n …

The Effect Of Using A Workplace Fitness Center On Employees' Nutrition And Fitness Behaviors, Valarie Bartelme

Theses and Dissertations

In an increasingly difficult environment to eat right and exercise and in light of various studies conducted concerning the benefits of workplace wellness programs, this study focuses on fitness and nutrition behaviors demonstrated by employees at an energy company. It researches whether users of a workplace fitness center (WFC) tend to demonstrate healthier behaviors than those of non-WFC users. Data were collected via online surveys and in-person interviews. The findings generated from this research project did not show differences in fitness or nutrition behaviors for the two groups, with one minor exception whereby WFC users tend to walk to speak …

The Assessment Of Alcohol Use Disorders Among Homeless Men In Residential Treatment, Stacy L. Pike

Theses and Dissertations

Homelessness continues as a grim reality that has devastating effects upon individuals and families from diverse cultures and backgrounds. Alcohol abuse is one of the most common problems reported by homeless individuals in the U.S. Additionally, research has consistently demonstrated a significant relationship between homelessness and mental disorders such as depression. Given the rates of alcohol abuse among homeless persons, it is important that clinicians providing mental health services to the homeless have reliable, valid methods for assessing substance abuse. The main focus of this archival study was to examine the usefulness of the Alcohol Use Disorders Identification Test (AUDIT) …