Digital Commons Network^™

Breastfeeding Among Working Mothers In Saudi Arabia, Maryam Suliman Alhabas

Theses and Dissertations

Objective: To examine the relationship of not having breastfeeding support policy in workplace such as employees pumping breast milk or breastfeeding their infant while at work policy to early initiation of formula and cessation of breastfeeding. Design: Crosssectional study. Setting and Subjects: A total of 273 workingwomen, working in 12 different organizations in Riyadh, KSA. Method: An electronic questionnaire survey was administered to 340 workingwomen in 12 different organizations in Riyadh. Questions were about participants’ demographics and employment characteristics, breastfeeding support services in their workplace, knowledge about breastfeeding benefits, breastfeeding duration after return to work, and formula initiation. Results: Having …

Integrative Behavioral Couple Therapy For Intercultural Couples: Helping Couples Navigate Cultural Differences, Caroline Kalai

Theses and Dissertations

Integrative Behavioral Couple Therapy (IBCT), an empirically supported and evidence-based third-wave behavioral approach for treatment of couples, is examined in this multiple case study. Specifically, the qualitative experiences of therapists using IBCT in their work with intercultural couples are examined through each therapist’s typed responses to open-ended questions. Each participating therapist in this study contributes by describing one case in which IBCT was used to help the couple navigate cultural differences as part of treatment. This study describes the various stressors faced by intercultural couples, therapists’ formulations of cultural differences, change processes and change mechanisms during treatment, and similarities and …

Addressing Stress And Well-Being Among Women Of Arab Descent Living In The United States: Development Of A Training Workshop For Mental Health Professionals, Hoda Abou-Ziab

Theses and Dissertations

Due to the increasing number of persons of Arab descent living in the United States, estimated at over 3.5 million in 2012, there has been a recognized need for a deeper understanding of acculturative, gender, and immigration-related stressors that Arab American women face. In response to this need, a one-day workshop for mental health professionals interested in or currently working with women of Arab descent living in the United States was developed. The workshop focuses on increasing knowledge of the various types of stress (e.g., acculturation, discrimination, gender role strain, parent-child relationships, care giver, familial, cultural expectations, work, school, etc.) …

Modification Of The "Gold Standard"? Leadership Selection From An Attachment Lens: A Critical Analysis., Rebecca Pearlstein

Theses and Dissertations

The demands of corporate America are placing increased pressures on supervisors and executives to create and manage optimal organizational cultures. Relational capabilities and emotional intelligence have come to the fore as an essential component of effective and successful business leadership. When leaders are unable to create positive relationships with their working teams and navigate the day-to-day stressors of the workplace, the costs can be significant. In addition to losses in productivity, absenteeism, stress, burnout, and demoralization all take a heavy toll. From the perspective of attachment theory, the ability to connect with others, cope with stress, and engage in productive …

Addressing Mental Health Needs On College Campuses: Utilizing Recovery Principles That Encourage A Holistic Approach, Self-Responsibility, Strengths-Based Practice, Cultural Sensitivity, And Family Support, Michelle B. Jackson

Theses and Dissertations

Research shows that there has been a significant increase in mental health issues within the college student population. Applying recovery-oriented principles as defined by the Substance Abuse and Mental Health Services Administration (SAMHSA) may be an effective approach to creating and adapting mental health resources for college students. In the current study, literature on the following was reviewed: (a) the college culture, (b) the prevalence of mental health issues for college students, and (c) recovery-oriented principles. Then, a critical analysis of the literature was conducted based upon the following recovery-oriented principles: (a) encouraging a holistic approach, (b) self-responsibility and self-empowerment, …

Emerging Pathogens In Cystic Fibrosis Patients At Virginia Commonwealth University Medical Center (Vcumc), Emily M. Hill

Theses and Dissertations

Cystic fibrosis (CF) is an autosomal recessive disorder affecting 70,000 individuals worldwide. This disease is characterized by the buildup of mucus in the airways leading to chronic lung infections resulting in pulmonary failure and death in 95% of CF patients. Routine surveillance of CF pathogens using traditional microbiology culture guides management and treatment of CF patients. Molecular profiling studies have revealed emerging pathogens that may play a role in CF lung disease by either directly causing infection or upregulating the virulence factors of classic CF pathogens, such as P. aeruginosa; however, routine CF culture protocols have not been modified …

Identifying Misconceptions Associated With Inaccurate Survey Reporting In The Combined Use Of Caffeine And Alcohol, Kathryn Polak

Theses and Dissertations

Research on college student use of caffeine combined with alcohol (CAC) and public health concern over such use has been hampered by the absence of psychometrically sound measures of caffeine and CAC use. The present study examined agreement between survey (CAS) and interview (TLFB) methods for collecting data on caffeine, alcohol and CAC use. Participants were N=50 college students randomized to complete CAS followed by TLFB or the reverse. Qualitative follow-up interviews with N=15 participants were used to identify factors contributing to CAS-TLFB discrepancies. Responses varied by method of administration, with largest discrepancy magnitudes found for CAC, followed …

Cancer Health Literacy And Hospitalization In The First Five Years Following A Cancer Diagnosis, Laura A. Cartwright

Theses and Dissertations

BACKGROUND: The field of health literacy research has been focused recently on developing more accurate measurement tools and understanding the relationship between health literacy and health outcomes. Individuals with lower levels of health literacy have worse health outcomes, including hospitalization rates, compared to those with adequate health literacy. This relationship has yet to be examined in the cancer patient population, although significant relationships between health literacy and cancer knowledge, screening behavior and quality of life have been found. This study is the first to examine the relationship between health literacy and hospitalization rates in a cancer patient population, and the …

An Examination Of The Technical And Relational Hypotheses Of Motivational Interviewing In A Sample Of African American Adolescent Girls Seeking Obesity Treatment, Rachel L. Boutte

Theses and Dissertations

Adolescent obesity has increased exponentially over the past three decades in the United States. In response, behavioral interventions have been developed and implemented to address this epidemic; however, treatment adherence is often suboptimal. Motivational interviewing (MI) is a directive, person centered approach to reducing patient ambivalence about change, which has been shown to increase engagement in obesity interventions. The current study investigated the underlying process of MI by exploring two different, but related pathways that explain how change happens (e.g., the technical and relational hypotheses) in the context of a multidisciplinary obesity intervention with African American adolescent girls (N …

Two-Stage Psa System For Co2 Removal And Concentration During Closed-Loop Human Space Exploration Missions, Hanife Erden

Theses and Dissertations

A novel two-stage pressure swing adsorption (PSA) system has been developed to remove metabolic CO2 removal from the spacecraft cabin air of the International Space Station (ISS). This PSA system enriches and recovers the CO2 to make it suitable for use in a Sabatier reactor (CO2 reduction). This two-stage PSA process utilizes Stage 1 to concentrate metabolic CO2 from about 0.2667 vol% to about 40 to 60 vol% and Stage 2 to further enrich the CO2 product from Stage 1 up to > 97 vol% CO2, while recovering at least 95% of it, which corresponds to removing 4.0 kg/day of CO2. …

Predictors Of Caffeine-Related Withdrawal Symptoms In College Freshmen, David J. Pomm

Theses and Dissertations

While caffeine withdrawal has been well-characterized, research on caffeine intake and factors associated with withdrawal has been limited. The present study examined prevalence rates of caffeine use and identified psychosocial factors associated with having caffeine withdrawal headaches (CWH). Participants were N = 1,989 college freshmen who participated in the 2011 Spit for Science project. Caffeine use was reported by 80% of the sample. Females were more likely than males to consume caffeine, and soda was the primary source of caffeine for both genders. As hypothesized, daily caffeine users were more likely to report CWH than non-daily users. When multivariable analyses …

Host Densities And Parasitism Rates In A Forest Defoliator Across A Rural-Urban Landscape, Abigail J. Nelson

Theses and Dissertations

Fall cankerworm (FCW) outbreaks have recently increased in frequency and intensity in the mid-Atlantic region of the United States, especially around cities of Charlotte, NC and Richmond, VA. This study evaluated the effects of two landscape features associated with urbanization, impervious surface and forest cover, on population patterns of FCW and its parasitoids across eastern Virginia. Forest cover was positively related to parasitism rates while impervious surface was positively related to FCW abundance, suggesting that FCW outbreaks may be amplified in urban areas. FCW abundance declined over the two-year period of this study, but parasitism rate increased at most sites. …

College Access: A Case Study Of Latino Charter School Students And Their K-16 Pathways, Victoria Faynblut

Theses and Dissertations

Despite the benefits of a college education and the resources allocated to college preparedness programs, Latino minorities, at 12.7% of college students, continue to be overwhelmingly underrepresented in institutions of higher educational (Zarate & Burciaga, 2010). The graduation gap between lower and higher income students as well as minority students is due in part to lack of academic preparation, underfunding and staffing, and affordability of resources and support (Tinto, 2008). There is a need to increase students attending universities. Individuals with an advanced degrees are more likely to enjoy a higher standard of living, donate time and or money to …

Role Of Altered Gut Microbiota In Tumor Development, Mucus Production And Inflammation In Apc Min/+ Mouse Model, Kamaljeet Kaur

Theses and Dissertations

The microbiome forms an integral part of the gut microenvironment. Once ignored, the topic has gained momentum in research during the past decade, where studies have strongly suggested the association of microbiota with health and a misbalance thereof, to many disease conditions ranging from inflammation and colitis to diabetes, obesity and colon cancer. The Human Microbiome Project (HMP, NIH common fund - 2008) has used a variety of high throughput analyses in order to study gut microbiota in health. The consortium has so far been able to isolate and characterize more than 1,300 reference bacterial strains from the human body. …

A Qualitative Study Of How Communities Think About And Act Upon Hunger In The Presence Of A Food Banking System, Eliza Miriam Fishbein

Theses and Dissertations

Hunger is often addressed by providing food directly to those experiencing symptoms of food insecurity and hunger. Even with the availability of government food assistance programs, food insecurity and hunger rates continue to rise. Many local community organizations (e.g., small food banks, faith-based organizations, schools) across the country have come together to create and implement a variety of nongovernment food programs. Although there is no evidence these programs lower food insecurity and hunger rates, community organizations appear to be strongly committed to sustaining these programs. Little is known about the basis for this commitment, i.e., “ the will to act …

Implementation Processes And Impacts Of School Store Policies In South Korea, Seul Ki Choi

Theses and Dissertations

With the concern of unhealthy school food environments, the South Korean government enacted two school nutrition policies to reduce unhealthy foods in school stores. The first policy banned on soft drinks sales in school stores enacted in 2007. The second policy restricted energy-dense nutrient-poor (EDNP) food sales in school stores enacted in 2009. This study aims to examine the changes in adolescents’ food intake and foods sold in school stores due to the two policies and to understand the policy implementation processes.

The Korea National Health and Nutrition Examination Surveys were used to examine trends in adolescents’ energy intake from …

The Roots Of Perspective In The American Context: News Media Discourse And Stakeholder Perspectives About The Supplemental Nutrition Assistance Program, Nicholas Younginer

Theses and Dissertations

The Supplemental Nutrition Assistance Program serves 46 million people but is controversial. The media is positioned to influence political and public opinions about SNAP policy. This study identifies the SNAP media discourse and investigates perspectives of SNAP participants and frontline workers about the program.

I employed a mixed-methods design with two aims. Aim 1 gathered 295 articles across six news outlets, semi-inductively coding the articles for characters, assignment of responsibility, and framing of the article. I then ran chi-square tests for difference between employed frame and responsibility and employed frame and political ideology.

Aim 2 collected a sample of 20 …

Deserts Will Bloom: Atomic Agriculture And The Promise Of Radioactive Redemption, Chris Fite

Theses and Dissertations

This paper examines the rhetorical and visual strategies used in marketing atomic agriculture to the American public from the 1940s to the 1960s. The term “atomic agriculture” refers to various agricultural research programs that used radioactive materials, particularly radioisotope tracing and mutation breeding. In print and on screen, atomic boosters from government and industry offered the promise of a better world made possible by applying atomic energy to agriculture. I argue that the proponents of atomic agriculture combined futurism and nostalgia to create a techno-pastoral vision. They hearkened back to the nineteenth century while simultaneously imagining a bright postwar future. …

The Effect Of Arsenic On Type 2 Diabetes And Inflammation, Kayla Penta

Theses and Dissertations

Arsenic, a ubiquitous environmental contaminant, has been shown to cause a number of health effects. At high concentrations the inorganic form is a well-known toxin, but at lower concentrations the effects range from various cancers, to cardiovascular disease and type 2 diabetes. At higher concentrations of arsenic (500- 1000μg/L) there have been epidemiological studies conducted demonstrating an increased risk in the development of type 2 diabetes with this exposure. At lower levels of arsenic exposure (<500 μg/L) the epidemiological results are inconclusive. Arsenic is also an immunotoxicant, meaning that it will cause changes in the immune response. The changes in the immune response will vary depending on a number of variables, including amount of arsenic exposure, forms of exposure and route of exposure. We wanted to determine if arsenic could modulate the immune system, and if this change could lead to an increase in susceptibility to type 2 diabetes development. We chose to examine this in C57BL/6 and db/+ mice – two non-susceptible strains. After 8 weeks (4 weeks old to 12 weeks old) of low dose inorganic arsenic exposure (50 μg/kg or 500 μg/kg) we evaluated changes in body composition, glucose tolerance and immune response. We saw that there were differences based on sex, genotype and treatment group present after the 8-week treatment period in body composition, while there were minimal changes in glucose tolerance. Finally, the immune response showed great variability depending on sex, genotype and treatment group. This project has demonstrated that while we are trying to compare differences in in vivo and epidemiological studies to find a link between arsenic and type 2 diabetes, there may be deeper levels of complications based on individual variability to arsenic exposure.

Sustainability Of Food And Nutrition Security Policies During Presidential Transitions: Integrating Socio-Political And Nutritional Sciences, Jessica Liana Escobar-Alegría

Theses and Dissertations

Presidential transitions are uncertain periods in which relationships among power, accountability, and electoral support of a democratic process do not hold. Transitions challenge collaboration towards implementing policies contributing to food and nutrition security (FNSP). Sustaining these policies during transitions is critical for reaching long-term goals. Knowledge gaps remain on how to perform strategic multisectoral work during transitions to maximize FNSP sustainability.

This study aimed to examine what determines FNSP sustainability during presidential transitions and responded to the questions: How do policy actors define sustainability? What are the mechanisms determining policy sustainability? What are the implications of terminal logic behavior (TLB) …

Influence Of Built Environment On Physical Activity Outcomes Among African Americans In Community-Based Obesity Intervention Studies, Amanda Sue Thomas

Theses and Dissertations

More than sixty-five percent of people in the U.S. are considered overweight or obese. African-Americans in the U.S. have a higher risk of obesity than any other racial group. One way to reduce this statistic is physical activity. Recreational green spaces (parks) can serve as an avenue to complete the 150 min/wk of recommended physical activity for adults by the ACSM. Data from SISTAS and HEALS interventions, that recruited overweight/obese African-Americans from Columbia and Florence, SC, was used to assess the association of recreational green space (parks) around a residence and physical activity. Physical activity measures of RAPA questionnaire (self-report), …

The Role Of N-Acetyl-L-Cysteine (Nac) As An Adjuvant To Opioid Treatment In Patients With Inadequately Controlled Chronic Neuropathic Pain, Thomas B. Moore

Theses and Dissertations

Introduction. While opioid medications are commonly prescribed for management of neuropathic pain (NP), long-term use has been associated with increased risk for overdose, drug interactions and addiction. New strategies are necessary to better manage chronic pain, thereby reducing need for opioid medications and their associated adverse consequences. N-acetyl-L-cysteine (NAC), an over-the-counter supplement, has shown promise in the treatment of psychiatric and addictive disorders. In addition, NAC has shown promise for reducing physiological signs of NP in laboratory rat models, prompting this study.

Purpose. The present study was an open-label clinical trial of NAC as an adjuvant to opioid treatment for …

Involvement Of Signal Peptidase I In Streptococcus Sanguinis Biofilm Formation, Jessica Aynapudi

Theses and Dissertations

Biofilm accounts for 65%-80% of microbial infections in humans. Considerable evidence links biofilm formation to oral disease and consequently systemic infections. Eradication of biofilm-associated infections is important. Streptococcus sanguinis, a Gram-positive bacterium, is one of the most abundant species in oral biofilm. It contributes to biofilm development in oral cavities and is one of the recognized causes of infective endocarditis. To study and identify biofilm genes in S. sanguinis, biofilm formation of 51 mutants was compared with the wild type SK36 strain using crystal violet (CV) staining in a microtiter plate. Confocal laser scanning microscopy (CLSM) and image analysis was …

Drug And Vaccine Development For Neisseria Gonorrhoeaea, Devin R. Cash

Theses and Dissertations

Neisseria gonorrhoeae, the causative agent of the STI gonorrhea, is not preventable by vaccination and is rapidly developing resistance to antibiotics. One important strategy for gonococcal survival in the host is iron acquisition in the face of nutritional immunity. To overcome iron limitation, the gonococcus expresses TonB dependent transporters (TdTs), outer membrane proteins that facilitate nutrient acquisition. Of the TdTs, the transferrin (Tf), lactoferrin (Lf), and hemoglobin (Hb) receptors hijack iron directly from host proteins, and studies have already shown that the Tf receptor is essential for the initiation of human infection. Given that the TdTs are virulence factors, …

Serum Vitamin D, Pth, And Calcium Levels In Patients With And Without Early Childhood Caries, Susan A. Meinerz, Harmeet Chiang, Peter C. Moon, Lorin M. Bachmann, Tegwyn Brickhouse, Al M. Best, Tiffany Williams

Theses and Dissertations

Purpose: The purpose was to determine differences in serum vitamin D, parathyroid hormone (PTH), and calcium levels between patients with early childhood caries (ECC) and patients without dental decay.

Materials and Methods: Serum vitamin D, PTH, and calcium levels were obtained from 30 children without dental decay who acted as controls and 60 children with ECC. A questionnaire was filled out by the parent/guardian of each participant consisting of questions regarding medical and dental history, exposure to sources of vitamin D and demographic information.

Results: The difference in the vitamin D levels of the participants was most …

Social Determinants Of Participation In A Home Visitation Fluoride Varnish Program, James E. Puryear, Tegwyn Brickhouse, Caroline Carrico

Theses and Dissertations

Purpose: The purpose of this study is to examine the social determinants of CHIP (Child Health Investment Partnership) of Roanoke Valley children who participated in the preventive oral health program compared to those who did not.

Methods: This is a retrospective cohort study of children (n=2,425) enrolled in CHIP of Roanoke Valley from September 2008-September 2014. Bivariate analysis and multivariable logistic regression models were used to compare age, gender, race, locality, parents’ education level, age at enrollment, and length of enrollment for oral health program participants versus those who did not participate.

Results: Children who were Hispanic …

Embodiment Of Empathy: Experiencing Disease Through Design, Noha Fouad

Theses and Dissertations

Today, more than 400 million individuals around the world have diabetes. This number is expected to grow to more than 600 million by 2023. However, diabetes is more than just a statistic. It is an incurable, psychologically nuanced disease, with daily battles and far-reaching complications. The lives of those afflicted undergo permanent physical and psychological changes.

Reading the stories of diabetics, or hearing them share their experience may elicit an immediate yet often fleeting sense of realization. How, then, can this brief moment of awareness be prolonged? How can a non-diabetic feel diabetes? More importantly, why should they? This research …

Identification Of Size And Shape Changes In Orofacial Development And Disease, Allyson E. Kennedy

Theses and Dissertations

Among the most prevalent and devastating types of human birth defects are those affecting the mouth and face, such as orofacial clefts. Children with malformed orofacial structures undergo multiple surgeries throughout their lifetime and struggle with facial disfigurements, speech, hearing, and eating problems. Therefore, facilitating new research in cranio- and orofacial development is paramount to prevention and treatment of these types of birth defects in humans. Xenopus laevis has emerged as a new tool for dissecting the mechanisms governing facial development. Thus, molecular analyses accompanied by quantitative assessment of morphological changes during orofacial development of this species could be very …

The Microbiome In Light Of Host Evolution, Alexander M. Waldrop Jr.

Theses and Dissertations

Recent advances in sequencing technologies have provided an unprecedented window in the unseen biological world. Accompanying this revolution is a growing appreciation for the ubiquity and diversity of beneficial interactions between animals and the microbes they carry. Given the symbiotic roles of microbes in host nutrition, immunity, behavior, development, and nearly every other facet of host biology, it is becoming increasingly clear that any understanding of hosts and their evolution would be incomplete without also considering the microbial dimension. Yet despite the growing body of evidence that many of these partnerships are rooted deep in evolutionary time, the majority of …

A Neural Circuit Of Appetite Control In C. Elegans, Kristen C. Davis

Theses and Dissertations

Feeding behavior and its associated neural circuitry is complex and intricate in mammalian systems, however, a simple model organism, such as C. elegans provides a more basic approach to understand factors and molecules involved. The fruit-dwelling nematode provides a unique set of resources; it only consists of 959 cells, 302 of which are neurons. In addition, each neuron’s connectivity and position within the worm is known and consistent between animals. Conservation of neurotransmitters and biochemical processes add to this impressive list. These resources provide an excellent background to address feeding behavior and the neural structures governing it.

Feeding behavior in …