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Radiological Population Monitoring: Views Of Public Health Professionals In The Southeastern United States, Gwendolyn N. Hudson Jan 2011

Radiological Population Monitoring: Views Of Public Health Professionals In The Southeastern United States, Gwendolyn N. Hudson

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In the immediate aftermath of a radiological disaster, it is essential to rapidly screen the population to identify contaminated persons, those needing urgent medical treatment, and those requiring long-term follow-up. This process, known as "radiological population monitoring," is vital to reducing morbidity and mortality and effectively addressing people's health needs and concerns. Radiological population monitoring has become a significant new focus of attention and responsibility for government agencies in recent years, due in large part to growing concerns about the possibility of a terrorist attack involving radioactive materials. The primary responsibility for radiological population monitoring resides within state and local …

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Relationships Among Self-Efficacy, Social Support, Social Problem-Solving, And Self-Management Behaviors Of People Living With Type 2 Diabetes In Rural Alabama, Caralise Weeks Hunt Jan 2011

Relationships Among Self-Efficacy, Social Support, Social Problem-Solving, And Self-Management Behaviors Of People Living With Type 2 Diabetes In Rural Alabama, Caralise Weeks Hunt

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Self-management behaviors are the cornerstone for control of type 2 diabetes mellitus (T2DM). Patients living with T2DM manage their own care on a daily basis using a variety of self-care strategies. Rural people living with diabetes are diagnosed later and receive less than optimal care compared to people living with T2DM in urban areas. Research evidence supports a relationship between self-efficacy and self-management behaviors of people living with T2DM. Determining mediators of the relationship between self-efficacy and self-management can provide direction for development of interventions to improve participation in self-management behaviors, which can in turn improve diabetes outcomes. The purpose …

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Neighborhood Characteristics And Weight Status In Preschool Children, Cynthia Irwin Joiner Jan 2011

Neighborhood Characteristics And Weight Status In Preschool Children, Cynthia Irwin Joiner

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Introduction: Childhood obesity is increasing at an alarming rate particularly among minority and low-income populations. More than 12 million children and adolescents are obese (Ogden, Carroll, Curtin, Lamb, & Flegal, 2010). Research on the neighborhood and built environment is relatively new. Few studies have examined the relationship of neighborhood characteristics and weight status, and studies in the preschool population are limited. Study Purpose: The study had three aims: 1) to examine the relationship between neighborhood characteristics (number of grocery stores and fast food restaurants, and number and quality of parks) and weight status (overweight and obese) in low income, preschool …

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Gender, Race, Power And Condom-Use: Understanding Relationship Power And Condom-Use Among Young Heterosexually-Active Adults, Tara L. Jones Jan 2011

Gender, Race, Power And Condom-Use: Understanding Relationship Power And Condom-Use Among Young Heterosexually-Active Adults, Tara L. Jones

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GENDER, RACE, POWER AND CONDOM-USE: UNDERSTANDING RELATIONSHIP POWER AND CONDOM-USE AMONG YOUNG HETEROSEXUALLY-ACTIVE ADULTS HIV/AIDS continues to be a significant public health threat among heterosexual-ly-active females in the United States, particularly among Black females. Rates of HIV infection among heterosexually-active, non-injection drug using females have been in-creasing since the 1990s. Previous research recommends the need to consider the gen-dered and cultural context within which these infections are occurring. This research re-sponds to these recommendations by using Connell's (1987) theory of gender and power as a theoretical guide to test the following research questions: 1. Does relationship power differ by sex …

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Explaining Racial Differences In Mci Classification In The Active Sample, Bridgett Hill Kennedy Jan 2011

Explaining Racial Differences In Mci Classification In The Active Sample, Bridgett Hill Kennedy

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Mild cognitive impairment (MCI) is 2 to 5 times more common than dementia and can be a predisposing marker for the development of dementia. African Americans are reported to be at an increased risk for developing MCI when compared to Caucasians. The purpose of the present study was to examine reasons for racial disparity in rates of MCI classification and, in particular, whether preservation of functional abilities over time occurs among African Americans so classified, suggesting possible misclassification. Level and quality of education and prevalence of vascular disease were examined as mediators of the racial disparity in MCI classification. Previously …

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Low And High Let Irradiation Of Human Aortic Endothelial Cells Induces Dose And Time Dependent Adhesion Of Monocytes Which Is Mediated By Chemokines Expressed By The Irradiated Endothelium., Saman Fatima Khaled Jan 2011

Low And High Let Irradiation Of Human Aortic Endothelial Cells Induces Dose And Time Dependent Adhesion Of Monocytes Which Is Mediated By Chemokines Expressed By The Irradiated Endothelium., Saman Fatima Khaled

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Exposure to radiation from a variety of sources is associated with increased risk of heart disease and stroke. Since radiation also induces inflammation, a possible mechanism is a change in the adhesiveness of vascular endothelial cells, triggering pro-atherogenic accumulation of leukocytes. To investigate this mechanism at the cellular level, the effect of xrays, iron (Fe56) ions, and protons on adhesiveness of cultured human aortic endothelial cells (HAECs) was determined. HAECs were grown as monolayers and exposed to 0 to 30 Gy X-rays, 0, 2, and 5 Gy Fe56 ions, and 0, 0.5, and 2 Gy protons followed by measurement of …

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Fmri Reactivity To Trial Difficulty On A Delay Discounting Task Predicts Weight Gain In Obese Women, Felix Kishinevsky Jan 2011

Fmri Reactivity To Trial Difficulty On A Delay Discounting Task Predicts Weight Gain In Obese Women, Felix Kishinevsky

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Obesity is a serious public health issue. Obesity may be accompanied by abnor-malities in executive function circuitry related to impulsivity. A useful task for studying impulsivity is the delay discounting (DD) of money task, in which an individual chooses in a series of trials between an immediate and a delayed, but greater, amount of money. On the DD task, individuals with various addictions make more immediate than delayed choices, compared to controls. Similar results have been observed in obese compared to healthy-weight women. Functional neuroimaging studies in addicted individuals have found that lower activation in executive function/inhibitory control areas during …

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The Role Of Trib3 In Insulin Resistance: Its Action As Nutrient Sensor And Regulator Of Insulin Action, Jiarong Lamiquiz Jan 2011

The Role Of Trib3 In Insulin Resistance: Its Action As Nutrient Sensor And Regulator Of Insulin Action, Jiarong Lamiquiz

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THE ROLE OF TRIB3 IN INSULIN RESISTANCE: ITS ACTION AS NUTRIENT SENSOR AND REGULATOR OF INSULIN ACTION JIARONG LIU LAMIQUIZ PATHOLOGY ABSTRACT Insulin resistance is a hallmark of Type 2 diabetes (T2DM). A reduced capacity for insulin to stimulate increases in glucose uptake and glucose oxidation in insulin sensitive tissues, such as skeletal muscle and adipose tissue, are common defects in patients with insulin resistance, T2DM, and other related diseases. Tribbles homolog 3 (TRIB3) has been demonstrated to play a role in insulin resistance by serving as a negative regulator of Akt in mouse liver, fat, and pancreas. In a …

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Three Dimensional Comparison Of Facial Morphology Of A Native Egyptian Population And A Native Brazilian Population, Ethan Larson Jan 2011

Three Dimensional Comparison Of Facial Morphology Of A Native Egyptian Population And A Native Brazilian Population, Ethan Larson

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Introduction: The purpose of this study was to assess the use of three dimensional facial averages in determining facial morphological differences between a native adult Egyptian population and a native adult Brazilian population. Methods: Three- dimensional images were acquired through a commercially available stereo-photogrammetric camera system. The 3dMDfaceTM system was used to capture images from 186 subjects from two population groups (Egypt and Brazil). Each image was obtained as a facial mesh and orientated along a triangulated axis. All facial images were overlaid and superimposed, and a complex mathematical algorithm was performed to create a composite facial average of one …

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Elucidation Of The Elongated Fibrillar Structure Of Streptococcus Mutans Antigen I/Ii, Matthew Rodney Larson Jan 2011

Elucidation Of The Elongated Fibrillar Structure Of Streptococcus Mutans Antigen I/Ii, Matthew Rodney Larson

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Streptococcus mutans (S. mutans) is the causative agent behind dental caries, an infectious disease also known as tooth decay or dental cavities. S. mutans has a cell wall-attached protein known as Antigen I/II (AgI/II) utilized for bacterial adhesion to the tooth surface. Here we have solved the structures of both amino- and carboxy-terminal regions of the AgI/II molecule using X-ray crystallography. Using this structural information we have now built a tertiary model for AgI/II as a fibrillar protein. Further, we have functionally characterized AgI/II and determined minimal regions of AgI/II that are implicated in its adherence to the salivary agglutinin …

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Bayesian Hierarchical Generalized Linear Models For Detecting (Rare) Haplotype-Haplotype And Haplotype-Environment Interactions In Genetic Association Analysis, Jun Li Jan 2011

Bayesian Hierarchical Generalized Linear Models For Detecting (Rare) Haplotype-Haplotype And Haplotype-Environment Interactions In Genetic Association Analysis, Jun Li

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This dissertation research focuses on genetic association analysis based on haplotypes in the context of both population-based and family-based studies. Haplotype-based association analysis is powerful in the discovery and characterization of the genetic basis of complex human diseases. However, statistical models that fit haplotype-haplotype and haplotype-environment interactions have not yet been fully developed. Furthermore, statistical methods for detecting the association between rare haplotypes and disease have not kept pace with their counterpart of common haplotypes. For both population-based and family-based association analyses, we herein propose two efficient and robust methods to separately tackle these problems based on Bayesian hierarchical generalized …

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Functional Imaging Of Excitable Cells: Retinal Neurons And Pancreatic Islet Beta Cells, Yichao Li Jan 2011

Functional Imaging Of Excitable Cells: Retinal Neurons And Pancreatic Islet Beta Cells, Yichao Li

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Stimulus-evoked fast intrinsic optical signals (IOSs) have time courses comparable to electrophysiological kinetics, and thus promise a sub-cellular and sub-second resolution method for functional evaluation of excitable biological tissues. The objective of my thesis research is to validate and characterize IOS imaging of stimulus-evoked activities in the retina and pancreatic islet ß-cells. In order to achieve this objective, three sets of experiments have been conducted. 1) Simultaneous measurement of retinal neurons functioning can enhance our understanding of the visual signal processing. In this stage of my study, I propose to demonstrate IOS imaging of retina slices that allows simultaneous monitoring …

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Erythropoiesis In The Absence Of Adult Hemoglobin, Shanrun Liu Jan 2011

Erythropoiesis In The Absence Of Adult Hemoglobin, Shanrun Liu

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The mammalian erythrocyte is a highly specialized blood cell that differentiates via an orderly series of committed progenitors in the bone marrow in a process termed erythropoiesis. During erythroid development, hemoglobin synthesis increases from early erythroid progenitors to mature enucleated red blood cells (RBCs). Although hemoglobin is the most extensively studied protein in history, the role, if any, that hemoglobin plays in erythroid development remains obscure. In this study, I ask the question what happens during erythropoiesis in the absence of hemoglobin. I demonstrate that my original hypothesis that excess free heme would accumulate in the absence of globin chain …

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Sexual Orientation And Risk: Patterns Of Association Across Outcomes, Penny S. Loosier Jan 2011

Sexual Orientation And Risk: Patterns Of Association Across Outcomes, Penny S. Loosier

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This study highlights associations between sexual orientation and risk outcomes in late adolescence and early adulthood using an expanded measure of sexual orientation. Recent data indicate higher levels of risk behavior in a newly identified population, mostly heterosexuals, as compared to heterosexuals. Comparisons among groups using an expanded measure of sexual orientation such as this, however, often do not include all possible groups or may restrict comparisons between groups. Data were derived from the National Longitudinal Study of Adolescent Health (Add Health); participants identified as heterosexual, mostly heterosexual, bisexual, mostly gay, or gay. Risk outcomes were parental mistreatment, home displacement, …

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Identification Of Putative Gene Targets Of Pgc-1alpha In The Brain: Insights Into Inhibitory Neuron Maturation, Physiology, And Behavior, Elizabeth Lucas Jan 2011

Identification Of Putative Gene Targets Of Pgc-1alpha In The Brain: Insights Into Inhibitory Neuron Maturation, Physiology, And Behavior, Elizabeth Lucas

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The transcriptional coactivator peroxisome proliferator activated receptor γ coactivator 1α (PGC-1α) is a master regulator of energy homeostasis in peripheral tissues, and it has been assumed that PGC-1α plays a similar role in the brain. Previous work has shown that PGC-1α localizes to neurons that express high levels of the enzyme glutamic acid decarboxylase of 67 kDa (GAD67) during early postnatal development, leading us to hypothesize that PGC-1α regulates gene expression primarily in GABAergic neurons. We initially investigated the distribution of inhibitory neuron markers in PGC-1α -/- mice and observed a striking reduction in expression of the Ca2+-binding protein parvalbumin …

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The Effects Of Simvastatin On Learning And Memory Mechanisms In Mice, Robert Mans Jan 2011

The Effects Of Simvastatin On Learning And Memory Mechanisms In Mice, Robert Mans

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Statins, a widely prescribed class of cholesterol-lowering drug, inhibit HMG-CoA reductase, the rate-limiting enzyme in the cholesterol biosynthetic pathway. Due to the identification of cholesterol as a risk factor for developing Alzheimer's disease (AD), a number of studies have examined whether statins are neuroprotective against developing AD or dementia. While some epidemiological studies do indicate a lower prevalence of AD in people taking statins, other reports are contradictory. A consensus has therefore not been reached regarding the neuroprotective effects of statin treatment. Aside from the well-characterized reduction in circulating cholesterol resulting from statin therapy, numerous cholesterol-independent, pleiotropic effects have been …

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Analysis Of Nphp Complex Genetic Interactions Associated With Human Cilia Disorders, Svetlana Viktorovna Masyukova Jan 2011

Analysis Of Nphp Complex Genetic Interactions Associated With Human Cilia Disorders, Svetlana Viktorovna Masyukova

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Primary cilia are antenna-like organelles that extend from the surface of almost all mammalian cell types. They regulate many signaling pathways and sense physical and chemical changes in the extracellular environment. Defects in primary cilia cause several human disorders of different severity collectively called ciliopathies, including nephronophthisis (NPHP), Joubert syndrome (JBTS), and Meckel-Gruber syndrome (MKS). Numerous MKS, JBTS and NPHP genes have been identified but in most cases of these ciliopathies the genetic defect is unknown. Despite the fact that NPHP, JBTS and MKS patients present with distinct clinical features, they have mutations in identical genes. This can be explained …

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Hemoglobin Switching, Thalassemia And Sickle Cell Disease In Humanized Knockin Mice, Sean Mcconnell Jan 2011

Hemoglobin Switching, Thalassemia And Sickle Cell Disease In Humanized Knockin Mice, Sean Mcconnell

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In this dissertation we describe knockin mouse models for the study of human hemoglobin disorders. These knockin human globin genes, in contrast to transgenes, replace the adult mouse globin genes, remain under control of endogenous mouse globin enhancer sequences and are inherited in a manner identical to globin alleles in man. Starting with various knockin alleles composed of unique human alpha, beta and gamma globin gene sequences, we evaluate several allele combinations towards our goal of generating improved models of thalassemia and sickle cells disease. We show that humanized knockin mice complete a fetal to adult hemoglobin switch during postnatal …

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Alcoholic Women In Recovery: A Phenomenological Inquiry Of Spirituality And Recidivism Prevention, Jennifer Irene Mcleod Jan 2011

Alcoholic Women In Recovery: A Phenomenological Inquiry Of Spirituality And Recidivism Prevention, Jennifer Irene Mcleod

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In the United States, 7-12% of women compared to 20% of men, abuse alcohol, yet the social and medical consequences impact women much harder and faster than men. Women aggrieved by alcoholism have unique health and social consequences which are not well understood because women have been marginalized in studies of alcoholism. Little is known about the nature of the lived experience of the recovery process in women who have achieved a stable recovery and prevented recidivism. The aim of this study was to describe the lived experiences of alcoholic women in a stable recovery, defined as sustained abstinence for …

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Developmental Factors For Different Strains Of Medically Important Mosquitoes, Joel Abraham Morris Jan 2011

Developmental Factors For Different Strains Of Medically Important Mosquitoes, Joel Abraham Morris

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Competition between northern sympatric mosquitoes, Culex restuans and Culex pipiens pipiens, was evaluated in Illinois using different ratios of the two species. Similarly, competition between southern sympatric species, Culex restuans and Culex pipiens quinquefasciatus, was evaluated in Alabama. Species ratios were repeated at biologically relevant temperatures and densities. Results for the northern study suggested that Cx. restuans survival was greater than Cx. pipiens across all treatment variables, whereas survival did not differ between the southern strains. Survival of both northern and southern strains of Cx. restuans increased with increasing competition, but southern strains of this species had poor survival in …

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Factors Associated With Prescribing Antiviral Medications For Treatment Of Influenza Among Primary Care Physicians In The United States, Payal Patel Jan 2011

Factors Associated With Prescribing Antiviral Medications For Treatment Of Influenza Among Primary Care Physicians In The United States, Payal Patel

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Influenza is a contagious respiratory illness that affects millions each year. The illness, if not contained, can be a paramount public health threat in the U.S. and the world. Primary care physicians play an essential role in administering antiviral medications as a treatment for influenza yet the factors that influence their prescribing of these medications remain unclear. The present study aims to identify factors associated with physicians' prescribing of antiviral medications in the ambulatory care setting. The data utilized for this study were obtained from the National Ambulatory Medical Care Survey for each influenza season between the years of 2005-2008. …

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A Psychometric Analysis Of The Leader Resilience Profile©, Pamela E. Paustian Jan 2011

A Psychometric Analysis Of The Leader Resilience Profile©, Pamela E. Paustian

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This study assesses the validity and reliability of the Leader Resilience Profile (LRP©), a quantitative survey instrument designed to measure the strength of multiple dimensions of resilience typically evident in leaders. Although content of the LRP© was initially tested for construct validity by a panel of experts, reliability and internal validity were not tested. The current research uses data gathered in a cross-sectional survey to analyze the individual instrument items and the instrument as a whole for internal consistency, validity, and reliability utilizing exploratory factor analysis. The study sample consisted of 327 LRP© surveys completed from January 2011 through August …

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Knowledge Of Management Of Musculoskeletal Problems: Assessment Of Students Enrolled In Four Professional Programs At The University Of Alabama At Birmingham, Patricia Lee Perez Jan 2011

Knowledge Of Management Of Musculoskeletal Problems: Assessment Of Students Enrolled In Four Professional Programs At The University Of Alabama At Birmingham, Patricia Lee Perez

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Background: Previous studies point to inadequate knowledge of musculoskeletal medicine for both student and practicing physicians and physical therapists. Professions with practice regulations that allow direct access by the consumer to healthcare should be assessed to determine competence in managing musculoskeletal conditions. Objective: The objective of this study was to determine if there is a difference in knowledge of the management of musculoskeletal conditions in students enrolled in four professional programs at the University of Alabama at Birmingham (UAB). Methods: Students enrolled in the last semester of medical school (MD), adult nurse practitioner (NP), physical therapy (PT) and physician assistant …

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Robust Nonparametric Regression Approach For Competing Cause Censored Survival Mortality Data With Covariates, Milind Arvind Phadnis Jan 2011

Robust Nonparametric Regression Approach For Competing Cause Censored Survival Mortality Data With Covariates, Milind Arvind Phadnis

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In the case of two or more competing risks when only the time to the event due to one risk is observable with times due to the other outcomes treated as censored observations, standard methods of survival analysis fall short of assessing the association of a set of predictors with the outcomes of interest. This problem is particularly severe when there is a differential association of a predictor with two competing risks (harmful for one risk and protective for the other risk) such as stroke and myocardial infarction and in situations where the predictor is associated with only one risk …

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The Association Between The Body Mass Index (Bmi) Of African American College Women And Their Exposure To Magazine Advertisements, Candice P. Prince Jan 2011

The Association Between The Body Mass Index (Bmi) Of African American College Women And Their Exposure To Magazine Advertisements, Candice P. Prince

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The primary purpose of this study was to examine the association between body mass index (BMI) and exposure to magazine advertisements among African-American college women aged 19 to 29. This study also sought to determine how personal, behavioral, and environmental factors affect the BMI of African-American college women. A sample of 252 African-American college women enrolled in undergraduate degree programs in the Southeast United States completed a web-based survey on their weight-related health behaviors and magazine usage. Descriptive statistics, bivariate correlations, and multivariable regression analysis were used to analyze the data. Bivariate correlations showed significant associations between BMI and several …

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How Do Proponents And Opponents Of The United Nations Convention On The Rights Of The Child Explain Their Views Regarding Children's Participatory Rights? A Multiple Case Study, Marilee Manning Ransom Jan 2011

How Do Proponents And Opponents Of The United Nations Convention On The Rights Of The Child Explain Their Views Regarding Children's Participatory Rights? A Multiple Case Study, Marilee Manning Ransom

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The United Nations Convention on the Rights of the Child (CRC), an international human rights treaty, has been ratified by every State except the United States and Somalia. It contains enumerated rights, including five articles pertaining to children's participation rights such as the right to speech, privacy, association, and religion. Ratification of the CRC is controversial, particularly because religious and social conservatives deem the CRC potentially harmful to families. Major education groups are among the myriad of CRC supporters in the Untied States. Thus far, supporters have been unable to achieve ratification. The purpose of this multiple case study was …

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Parental Influences On Late Adolescents' Autonomous Motivation And Sexual Risk Knowledge And Behavior, Bettina Hornbuckle Riley Jan 2011

Parental Influences On Late Adolescents' Autonomous Motivation And Sexual Risk Knowledge And Behavior, Bettina Hornbuckle Riley

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Adolescent risky sexual behavior is associated with unprotected sex, unplanned pregnancy, abortion, and contraction of sexually transmitted diseases (STDs) such as chlamydia, syphilis, gonorrhea, and HIV/AIDS. During their time of transition to adulthood, late adolescents make decisions about their sexual health that may or may not be motivated by parental (mother and father) sexual risk communication and autonomy support. While the adolescent may be physically independent or semi-independent from his/her parents, parents continue to influence their adolescents through past and present endorsement of certain behaviors. This research examined how parent-sexual risk communication and parental autonomy support may individually and collectively …

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Design Space Decomposition Using Concept Maps, David E. Robbins Jan 2011

Design Space Decomposition Using Concept Maps, David E. Robbins

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Decomposition of engineering design spaces has been performed primarily through statistical and system identification techniques. However, no approach has yet attempted to capture the semantics of a design through decomposition. This thesis presents graphical techniques for capturing the semantics of a design by developing an information architecture through design space decomposition using concept maps. In particular, concept maps are used to begin identifying the top layers of the information architecture of a problem, which has the dual effects of performing an initial decomposition of the design space and refining the parameters that will define more detailed design spaces for further …

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Survival Analysis With Censored Outcomes, Henry T. Robertson Jan 2011

Survival Analysis With Censored Outcomes, Henry T. Robertson

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This dissertation is arranged in the three-paper format. The unifying theme of the dissertation is estimating longevity in terms of years of life lost (YLL). The papers are presented in order of increasing methodological focus. The first paper, No compelling evidence that sibutramine prolongs life in rodents despite providing a dose-dependent reduction in body weight, was published in the International Journal of Obesity in 2010. Although sibutramine reduced food intake and body weight, it had no association with longevity. The conclusions were based on data from a 2-year toxicology trial required by the FDA. Although this paper was largely applied …

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The Impact Of Stressful Neighborhoods On The Mental Health Of Emerging Adolescents, Vicki P. Winstead Jan 2011

The Impact Of Stressful Neighborhoods On The Mental Health Of Emerging Adolescents, Vicki P. Winstead

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Life within the ecological context of a disadvantaged and disordered neighborhood is characterized by daily exposure to chronic stressors which are often outside the realm of control of the individual and have negative consequences for the mental health of its residents and in particular, adolescents Using data from Healthy Passages, a multilevel, multi-method longitudinal study which examines health trajectories of adolescents over a ten year period, this paper examines whether daily exposure to a threatening environment in disadvantaged and disordered neighborhoods lead to depression in young people who are on the verge of adolescence. The current study tested the relationships …

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