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2017

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Articles 19051 - 19080 of 19639

Full-Text Articles in Arts and Humanities

Fabrication, Structure, And Transport Properties Of Alumina Nanofiber-Based Materials, William Anthony Brayer Jan 2017

Fabrication, Structure, And Transport Properties Of Alumina Nanofiber-Based Materials, William Anthony Brayer

All ETDs from UAB

One of the most promising nano-materials is nanofibrous alumina (Al2O3) but current production methods are too slow and too inconsistent for applications outside of laboratory proof of concepts. Alumina structures were fabricated from aluminum nitrate/polyvinylpyrrolidone precursor nanofibers prepared using a novel free-surface alternating current (AC) electrospinning method. Precursor fibers were generated at the rates up to 6.4 g/h and collected as 100–300 m thick sheets suitable for direct conversion into the nanofibrous alumina structures. A computational model of the surrounding electric field was constructed to compare to experimental observations. The effects of process conditions and annealing temperature on the nanofiber …


Patterns Of Cerebellar Connectivity With Intrinsic Connectivity Networks In Autism Spectrum Disorders, Haley Bednarz Jan 2017

Patterns Of Cerebellar Connectivity With Intrinsic Connectivity Networks In Autism Spectrum Disorders, Haley Bednarz

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This study investigated the patterns of functional connectivity between three intrinsic connectivity networks (default mode, executive, salience) and the cerebellum in children with autism spectrum disorder (ASD). There is substantial evidence of cerebellar pathology in ASD, and recent evidence implicates cortico-cerebellar connectivity in the disorder. Three intrinsic connectivity networks (ICNs) of the cortex have particular relevance to the conceptualization of cognitive processing in ASD: the default mode, executive control, and salience networks. In typically developing (TD) adults, the cerebellum is functionally connected with each of these networks. The contributions of the cerebellum to these three ICNs may differ between ASD …


A Comparison Of Novice And Experienced Drivers With Autism Spectrum Disorder, Haley Johnson Bishop Jan 2017

A Comparison Of Novice And Experienced Drivers With Autism Spectrum Disorder, Haley Johnson Bishop

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According to recent estimates, only 33% of individuals with Autism Spectrum Disorder (ASD) successfully achieve licensure compared to nearly 84% of the general population. Despite this decreased number of individuals driving in the ASD population and the importance of driving in increasing independence and quality of life, research in transportation safety among drivers with ASD is limited. Many of the impairments associated with ASD such as anxiety, processing speed and executive function may negatively impact driving performance. This study is among the first to objectively assess possible demographic, cognitive and simulated driving performance differences in individuals with ASD who are …


Connectivity Of The Striatal Resting-State Networks In Autism Spectrum Disorder, Thomas Patrick Deramus Jan 2017

Connectivity Of The Striatal Resting-State Networks In Autism Spectrum Disorder, Thomas Patrick Deramus

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Social deficits and repetitive behaviors and are core features of autism. Structural and functional alterations in the striatum, brain regions highly involved in movement planning, regulation, and motivation, may underlie these core features. However, few studies have examined functional connectivity (FC) of the striatum in autism; and fewer have examined anatomical connectivity despite hypotheses of structural alterations influ-encing FC autism spectrum disorders (ASDs). To address these gaps, the current study examined FC of resting-state brain networks in the striatum in 19 typically developing and 19 children with autism (ages 7-17 years) from the Autism Brain Imaging Database Exchange II. The …


Factors Guiding Cd4 T Cell Fate Bifurcations, Daniel Francis Ditoro Jan 2017

Factors Guiding Cd4 T Cell Fate Bifurcations, Daniel Francis Ditoro

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Naïve CD4 T cells differentiate into a variety of phenotypically and functionally distinct subsets uniquely tailored to the specific inflammatory context. Despite the extraordinary heterogeneity of potential fate outcomes, two distinct but related functional bifurcations appear common to all inflammatory contexts. Following activation, CD4 T cells either home to the site of inflammation and influence peripheral events or remain in the secondary lymphoid tissue to modulate central processes. Similarly, activated cells either drive or suppress inflammation. These functional bifurcations are coincident and sufficiently independent to allow for the simultaneous generation of all four potential outcomes. Pro-inflammatory cells retained in the …


Exploring Prenatal Maternal Self-View, Early Home Environment And Toddler Socioemotional Development In First-Time Teen Low Education And Adult High And Low Education Mothers, Bethany Stenger Jan 2017

Exploring Prenatal Maternal Self-View, Early Home Environment And Toddler Socioemotional Development In First-Time Teen Low Education And Adult High And Low Education Mothers, Bethany Stenger

All ETDs from UAB

Maternal self-perception and children’s early home environment have been linked to a number of areas of child development. This study looked at the influence of both prenatal maternal parenting self-efficacy and personal mastery, coined as the concept maternal self-view (MSV), on children’s 4-month home environment and 1-year socioemotional development. The effect of 4-month home environment, as measured by the Home Observation for Measurement of the Environment (HOME) including the Supplement to the HOME for Impoverished Families (SHIF) and by the Family and Maternal Life History (FMLH), overall and in regards to the presence of television and crowding, on 1-year child …


The Role Of Cognitive Reserve In Recovery From Traumatic Brain Injury, Kayla Steward Jan 2017

The Role Of Cognitive Reserve In Recovery From Traumatic Brain Injury, Kayla Steward

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Objective: To examine whether cognitive reserve (CR) attenuates the initial impact of TBI on cognitive performance (passive model) and results in faster cognitive recovery rates in the first year post-injury (active model), and whether the advantage of CR differs based on the severity of TBI. Setting: Inpatient/outpatient clinics at academic medical center. Participants: Adults with mild TBI (mTBI; n=28), complicated mild TBI (cmTBI; n=24), and moderate-to-severe TBI (msevTBI; n=57), and demographically-matched controls (n=66). Design: Retrospective; longitudinal cohort assessed at 1-, 6-, and 12-months post-injury. Main Measures: Outcomes were 3 cognitive domains: processing speed/executive function, verbal fluency, and memory. Premorbid IQ, …


Substance Abuse Stigma And Engagement In Hiv Care: A Mixed Methods Investigation, Kristi Lynn Stringer Jan 2017

Substance Abuse Stigma And Engagement In Hiv Care: A Mixed Methods Investigation, Kristi Lynn Stringer

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Situated within a fundamental cause theory framework, this study examines the roles of multiple stigmas in HIV treatment behaviors among drug-involved people living with HIV (PLWH). Using a transformative mixed method research design, I synthesized quan-titative and qualitative data to understand the role of two specific types of health-related stigmas, HIV-related stigma and stigma related to drug involvement (SU-related stigma). For the quantitative stage (Phase One), I examined levels of HIV and SU-related stigmas, and the relationship between these stigmas and retention in care and ART adherence us-ing data collected via a self-administered questionnaire matched with data from HIV-clinic records. …


A Black Girl's Song, Marie A. Sutton Jan 2017

A Black Girl's Song, Marie A. Sutton

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A Black Girl’s Song tells of the journey of the late Jimmie Lee Elliott, a Birmingham woman who experiences a series of nearly debilitating relational, emotional and racial experiences, but goes on to become the first woman to reach the level of EAS-22 Postmaster in Alabama’s postal system. Jimmie’s is a life of interruptions, precipitated and agitated by money issues, mental breakdowns and men. But for her cast-iron will, she would have abandoned her thorny path to greatness as it had more dry patches than grassy places.


An Investigation Of The Neurobiological Heterogeneity In Autism, Adhd, And Typical Development, Melissa Thye Jan 2017

An Investigation Of The Neurobiological Heterogeneity In Autism, Adhd, And Typical Development, Melissa Thye

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Standard fMRI studies of healthy as well as clinical populations rely heavily on group-level averages to draw inferences about brain and behavior. This presumes neural and behavioral homogeneity within diagnostic groups resulting in group-level models which may not capture individual variability. This problem is especially relevant for studies of neurodevelopmental disorders such as autism spectrum disorder (ASD) and attention deficit hyperactivity disorder (ADHD) which clinically present with widespread individual differences. The prevalence of comorbidity between these disorders is roughly 28% highlighting the possibility that there may be shared behavioral and neural markers which cut across the diagnostic boundaries delineating the …


Morse Theory In Finite Dimensions, William Smith Tidwell Jan 2017

Morse Theory In Finite Dimensions, William Smith Tidwell

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Morse Theory is a subset of manifold theory that looks at non-degenerate critical points of functions on manifolds. The Morse Lemma allows for a local coordinate system to be made around a non-degenerate critical point to express the function in a standard form. When these properties come together to describe the manifold on a global level it can have significant results related to its various diffeomorphisms. I will discuss some of these unique properties that Morse Theory has in identifying the generalized shape of surfaces, and then expand that into finitely many dimensions. I will show that any smooth function …


Effects Of A Cooking Program On Social Skills, Adaptive Functioning, And Dietary Behavior Of Adolescents With Autism Spectrum Disorder, Eva Phui Phui Trinh Jan 2017

Effects Of A Cooking Program On Social Skills, Adaptive Functioning, And Dietary Behavior Of Adolescents With Autism Spectrum Disorder, Eva Phui Phui Trinh

All ETDs from UAB

Autism Spectrum Disorder (ASD) is characterized by two domains: 1) deficits in social interaction and communication, and, 2) restricted and repetitive behavior, interests, or activities. Poor adaptive functioning skills is an associated feature of ASD and leads to concerns for establishing independence as adolescents with ASD transition into adults. The dietary behavior of adolescents in the United States do not meet national standards for healthy eating, which could lead to poor health outcomes. Eating and feeding problems are more prevalent in children with ASD compared to their typically developing peers. Independent skills and health are a main source of stress …


Delivery Of Deoxyribonucleic Acids As Drugs: A Structural Study, Encapsulation, And Controlled Release Of G-Quadruplex Forming Deoxyoligonucleotides Of The Human Telomeric Sequence, Brenna Alyssa Tucker Jan 2017

Delivery Of Deoxyribonucleic Acids As Drugs: A Structural Study, Encapsulation, And Controlled Release Of G-Quadruplex Forming Deoxyoligonucleotides Of The Human Telomeric Sequence, Brenna Alyssa Tucker

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Nucleic acids are known to play numerous important roles in the cell. Recently, interest in the delivery of DNA to treat disease, also known as gene therapy, has increased with new non-viral encapsulation strategies becoming available. Unfortunately, challenges with sufficient delivery of the DNA still plague these systems causing the need for improved DNA delivery vehicles. To overcome DNA delivery barriers, two-component poly(methacrylic acid) (PMAA)/ poly(N-vinylpyrrolidone) (PVPON) microcapsules were developed using Layer-by-Layer (LbL) technology. G-quadruplex forming deoxyoligonucleotides of the human telomeric sequence were used to model the delivery of the thrombin binding aptamer (TBA), a DNA therapeutic that folds into …


Familial Support And Mental Health Service Use: Differences Among First- And Second-Generation Asian American And Latino Older Adults, Jessica Lynn Valles Jan 2017

Familial Support And Mental Health Service Use: Differences Among First- And Second-Generation Asian American And Latino Older Adults, Jessica Lynn Valles

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While several studies have shown that US-born Asian Americans and Latinos are more likely to use mental health services than their foreign-born counterparts, the effects of generation status and familial support is unclear. Furthermore, little is known about these associations and how they affect older adults. According to the Socioemotional Selectivity Theory (SST), as adults begin transition into advanced age, they begin to withdraw from broader social networks to focus on more intimate relations, such as those with children. In applying modernization theory to the family and aging, this theory would suggest that the status of older adults in families …


Blackbird In Flight, Holly Watson Jan 2017

Blackbird In Flight, Holly Watson

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Set in the fictional town of Raynham, Alabama in the Tennessee Valley region, Blackbird in Flight opens with the voice of Fenton Knox as he reminisces about the day four-year-old Molly Sutherland drowned at the drip hole where he and his family were picnicking with the Sutherlands. Fenton, who was fifteen at the time, sees a snake in the water and inaccurately assumes it is a cottonmouth. In an attempt to catch and kill the snake, Fenton is bitten. As the remaining adults attend to Fenton’s wound and successfully eliminate the snake, Molly wanders out into the water unsupervised and …


Kinetic Mechanisms Of Atp-Dependent Disaggregating Motors Escherichia Coli Clpb And Saccharomyces Cerevisiae Hsp104, Clarissa Lynn Weaver Jan 2017

Kinetic Mechanisms Of Atp-Dependent Disaggregating Motors Escherichia Coli Clpb And Saccharomyces Cerevisiae Hsp104, Clarissa Lynn Weaver

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E. coli ClpB and S. cerevisiae Hsp104 help cells survive and adapt to environmental stress. Extreme stress denatures proteins, causing toxic aggregates to form. ClpB/Hsp104 resolve aggregates, returning damaged proteins to their proper fold and function or releas-ing them for degradation. This function, broadly defined as protein remodeling, is com-mon to AAA+ proteins. This superfamily also shares common structural elements includ-ing Walker A and Walker B motifs in the nucleotide binding domain(s). ClpB/Hsp104 have two NBDs, similar to ClpA. ClpB/Hsp104 also have a middle (M) domain, unique to the disaggregases. Because disaggregases do not covalently modify their substrates, monitoring the …


History, Counter-Memory, And Commemoration: Enacting Remembrance For The Comfort Women Of Wwii, Christina Joan Inman Jan 2017

History, Counter-Memory, And Commemoration: Enacting Remembrance For The Comfort Women Of Wwii, Christina Joan Inman

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The case of the comfort women of East Asia is one of the largest human trafficking epidemics to have taken place in the twentieth century. It remains, however, an issue that is still widely unknown to the general public and has been obscured in both Eastern and Western historical texts up until the early 1990s. Scholars have determined that an estimated two hundred thousand young girls, now referred to as the comfort women, were forced into sexual servitude for the Japanese army during WWII. Of this number, seventy percent of the women did not survive the war. Currently, only forty …


God Is Always There For Me: Spiritual Coping In Adolescents With Cystic Fibrosis And Their Parents - A Qualitative Study, Christina Helen Jagielski Jan 2017

God Is Always There For Me: Spiritual Coping In Adolescents With Cystic Fibrosis And Their Parents - A Qualitative Study, Christina Helen Jagielski

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Cystic Fibrosis is a chronic, life threatening genetic disorder involving complex medical treatments and numerous psychosocial stressors affecting both the patient and his or her family. Spiritual coping strategies provide useful means to solving problems, developing a sense of control, and making meaning of negative events and have been shown to be useful for people living with chronic illness. This qualitative study focused on the use of spiritual coping strategies and the subjective impact of using such strategies for 15 adolescents with cystic fibrosis and their parents. Thematic analysis identified themes regarding personal and collective spiritual coping strategies, the impact …


A Control Theory Examination Of Reentry Programming, Seth Undrea Lewis Jan 2017

A Control Theory Examination Of Reentry Programming, Seth Undrea Lewis

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The United States has a considerable prison population. More than 90 percent of prisoners will be released back into society. Faced with an increasing number of prisoners being released each year, reentry programs have become a popular tool to ensure successful reentry back into society. Research has indicated that successful completion of a reentry program reduces the likelihood that a former prisoner will return to prison. Travis Hirschi argued that when individuals have strong bonds to society they are less likely to exhibit criminal behavior. This study uses Hirschi’s social bond theory as a basis to identify factors that influence …


Polymeric Stimuli-Sensitive Self-Assembled Micro- And Nano-Particles For Controlled Drug Delivery, Fei Liu Jan 2017

Polymeric Stimuli-Sensitive Self-Assembled Micro- And Nano-Particles For Controlled Drug Delivery, Fei Liu

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The research presented in this thesis is focused on the design and development of stimuli-responsive polymeric particles for drug delivery, including tannic acid-based layer-by-layer capsules with pH- and ionic strength-dependent permeability as well as size- and structure-tunable poly-(N-vinylcaprolactam)-based temperature-responsive polymersomes and micelles. Polymer-based particles play essential roles in controlled drug delivery due to their tunable sizes and nanostructures, and can be further advanced through functionalization, allowing pH-, ionic strength- and temperature-sensitivities to alter the therapeutics’ pharmacokinetics and bio-distribution. Two typical pathways for engineering polymeric drug delivery vehicles are introduced in this thesis, layer-by-layer self-assembly at inter-faces and self-assembly from block …


Molecular And Biochemical Characterization Of Cellular Stress Sensing Proteins Gcn2 And Ire1 In Arabidopsis Thaliana Immune Responses, Xiaoyu Liu Jan 2017

Molecular And Biochemical Characterization Of Cellular Stress Sensing Proteins Gcn2 And Ire1 In Arabidopsis Thaliana Immune Responses, Xiaoyu Liu

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Plants are capable of recognizing conserved molecular structures from pathogens and precisely regulates gene expression to establish effective and efficient immune responses. Transcriptional regulation has been extensively characterized in plant immunity, while relatively less is understood on the translational level. Moreover, switching cellular energy from growth- to defense-related activity may result in the buildup of misfolded or unfolded proteins within the endoplasmic reticulum (ER), and activating the unfolded protein response (UPR) is critical for restoringllular homeostasis. My dissertation is set out to understand the function of translational regulatory mechanism and UPR in plant immune responses. As a key transcriptional regulator …


Mounting Mermaids On Alligators: Establishing The Continental Line, Christopher Long Jan 2017

Mounting Mermaids On Alligators: Establishing The Continental Line, Christopher Long

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MOUNTING MERMAIDS ON ALLIGATORS: ESTABLISHING THE GEORGIA CONTINENTAL LINE CHRISTOPHER LONG HISTORY ABSTRACT By the summer of 1776, Georgia was committed to the idea of separation from Great Britain and the formation of a union with twelve other rebelling colonies. Due to its relative youth as a colony and the presence of a popular and dynamic governor, Geor-gia was slow to embrace the revolutionary enthusiasm which gripped the other colonies. However, once the decision was made to rebel against British authorities, Georgia’s revo-lutionary leaders were eager to demonstrate their enthusiasm for the self-described cause of liberty. One method of displaying …


The Effect Of Retouched Media Images On Body Dissatisfaction, Danielle Marie Lorch Jan 2017

The Effect Of Retouched Media Images On Body Dissatisfaction, Danielle Marie Lorch

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Contemporary society, including social and main-stream media, perpetuate unrealistic body ideals through their promotion of slender, thin-ideal body shapes and sizes that are typically photo-shopped to appear even thinner. More specifically, portrayal of the thin-ideal can negatively influence body dissatisfaction. Viewing slender models is associated with increased body dissatisfaction, while viewing average or plus size models is associated with decreased body dissatisfaction. This difference in effect of model size (slender vs. average vs. plus-size) on body dissatisfaction varies based on whether individuals compare themselves to others they view as more or less attractive than themselves. The purpose of this study …


A Metrically Defined Uniformization Map Of Planar Domains, Ivan Holden Mann Jan 2017

A Metrically Defined Uniformization Map Of Planar Domains, Ivan Holden Mann

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Let D be the unit disk in the Riemann sphere C and D ∞ = C\D be its complement. A standard way to uniformize a proper simply connected domain U ⊂ C containing 0 is to consider a Riemann map φ : D → U such that 0 maps to 0. Images in D ∞ of radial line segments are called conformal rays. Brouwer defines metric rays in U using the centers of maximal balls touching ∂U and a function ψ, which we call here the Brouwer map. We use a new definition len of length under which every path …


Fall Out Boys And The Spice Girls: Understanding The Criminal Careers Of Those Who Use Spice, Whitney Julia Marsh Jan 2017

Fall Out Boys And The Spice Girls: Understanding The Criminal Careers Of Those Who Use Spice, Whitney Julia Marsh

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Since the early 2000s, Novel Psychoactive Drugs (NPDs) have been gaining popularity in the illicit drug world. One of the most popular NPDs is synthetic marijuana, commonly referred to as spice. Initially unregulated, spice became popular among and accessible to a diverse array of people throughout the United States. Deleterious health effects, including death, have been attributed to spice use. Recognizing a lack of criminological research available on spice use, this study seeks to understand why individuals use spice—why they began to use spice specifically, why they persisted, and why they quit if applicable. Based on 34 in-depth interviews and …


A Multi-Modal Approach To Sulforaphane-Mediated Chemoprevention Using The Epigenetic Network, Samantha Martin Jan 2017

A Multi-Modal Approach To Sulforaphane-Mediated Chemoprevention Using The Epigenetic Network, Samantha Martin

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Colon cancer is the third most common diagnosed cancer in both women and men in the United States. It is reported that dietary factors are responsible for 70-90% of colon cancer cases. While some investigators have observed a direct correlation in high fat diets and cancer initiation, other studies have observed opposite effects mediated by fruit and vegetable consumption. Recently, studies have highlighted the importance of Epigenetics as it modifies gene expression without changing the DNA sequence. Notably, several nutritive compounds have been reported to alter epigenetic profiles in many cancer forms. SFN, an isothiocyanate found in cruciferous vegetables such …


The Ecology And Evolution Of Invertebrate-Cyanobacterial Symbioses, Kenan Matterson Jan 2017

The Ecology And Evolution Of Invertebrate-Cyanobacterial Symbioses, Kenan Matterson

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Intimate partnerships between marine invertebrates and microbial symbionts have garnered renewed interest, as advances in next generation sequencing have revealed substantial microbial diversity in tropical sponges and ascidians. These datasets have generated a suite of new questions concerning the evolutionary and ecological mechanisms that structure these microbial partnerships. The research presented herein addresses such questions by integrating in situ ecological manipulations with modern molecular techniques to characterize the interactions between the host invertebrate and microbiome and its potential role in structuring marine communities. Implementing in situ manipulative shading experiments alongside replicated bacterial clone libraries, I documented significant variation in host …


Predicting Internalizing And Externalizing Child Behavior: A Comparative Analysis Between Autism Spectrum Disorder And Attention Deficit/Hyperactivity Disorder, Elizabeth Mcrae Jan 2017

Predicting Internalizing And Externalizing Child Behavior: A Comparative Analysis Between Autism Spectrum Disorder And Attention Deficit/Hyperactivity Disorder, Elizabeth Mcrae

All ETDs from UAB

Parent-related and environmental factors are both important variables in predicting and understanding internalizing and externalizing child behaviors. In clinical child populations, these factors are particularly important not only because of the increased demands the child’s disorder places on their caregivers and their environment but also because of the increased levels of internalizing and externalizing child behaviors associated with childhood psychopathology. Two such clinical child populations are Attention Deficit/Hyperactivity Disorder (ADHD) and Autism Spectrum Disorder (ASD). Specifically, parents of children with these disorders are at increased risk of experiencing poorer parental adjustment which affects their parenting behaviors and the routines they …


Diamond-Based Sensors And Diamond Micro-Anvils For Studies On Materials Under Extreme Conditions, Samuel Lawrence Moore Jan 2017

Diamond-Based Sensors And Diamond Micro-Anvils For Studies On Materials Under Extreme Conditions, Samuel Lawrence Moore

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This work encompasses the development and construction of a state of the art Microfabrication facility to produce diamond-based sensors for applications in extreme environments. The facility utilizes maskless lithography housed in a class 7000 clean room and DC-sputter deposition, along with a 1.2 kW Chemical Vapor Deposition system for the encapsulation of metallic micro-probes in single crystal diamond. Extensive research and development has been applied to developing a novel and reproducible method for fabrication of designer diamond anvils, that feature sensing probes integrated into the diamond anvil and are capable of unobtrusively measuring resistivity of a material whilst simultaneously compressing …


The Effects Of Pain Catastrophizing And Hiv-Related Stigma On Pain Sensitivity In Persons Living With Hiv (Plwh), Michael Alexander Owens Jan 2017

The Effects Of Pain Catastrophizing And Hiv-Related Stigma On Pain Sensitivity In Persons Living With Hiv (Plwh), Michael Alexander Owens

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Due to medical advancements in antiretroviral therapy (ART), HIV has transitioned from a terminal illness to a chronic condition requiring long-term management. Despite substantial improvements in life expectancy in the modern treatment era, PLWH still face significant medical comorbidities and threats to their health-related quality of life. HIV appears to sensitize the peripheral nervous system and facilitate sensitivity to a painful stimulus. A growing body of evidence derived from animal models has shown a specific biological basis linking HIV to pain sensitivity. HIV is likely not the only factor contributing to greater pain sensitivity; there are also important psychosocial factors …