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The Creativity Loophole: Needlework, Social Conventions, And The Permissibility Of Creative Expression For Early American Women, Alyce Graham Aug 2010

The Creativity Loophole: Needlework, Social Conventions, And The Permissibility Of Creative Expression For Early American Women, Alyce Graham

Theses and Dissertations

This thesis investigates creative expression through needlework by wealthy or elite women in the eighteenth- and early nineteenth-century, focusing on women in the United States South. This inquiry begins in broad terms and proceeds to the close examination of one particular needlework sampler held in the collection of the Valentine Richmond History Center. The first chapter uses prescriptive literature popular in the eighteenth century to establish the restrictive, obedient, and subservient expectations for women’s behavior. The second chapter explores the reasons that the same books that prohibited many forms of pleasure promoted needlework as an acceptable activity for women. This …

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Development And Applications Of The Hint Forcefield In Prediction Of Antibiotic Efflux And Virtual Screening For Antivirals, Aurijit Sarkar Aug 2010

Development And Applications Of The Hint Forcefield In Prediction Of Antibiotic Efflux And Virtual Screening For Antivirals, Aurijit Sarkar

Theses and Dissertations

This work was aimed at developing novel tools that utilize HINT, an empirical forcefield capable of quantitating both hydrophobic and hydrophilic (hydropathic) interactions, for implementation in theoretical biology and drug discovery/design. The role of hydrophobicity in determination of macromolecular structure and formation of complexes in biological molecules is undeniable and has been the subject of research across several decades. Hydrophobicity is introduced, with a review of its history and contemporary theories. This is followed by a description of various methods that quantify this all-pervading phenomenon and their use in protein folding and contemporary drug design projects – including a detailed …

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In Vitro Evaluation Of Mechanical Heart Valve Performance Using A Novel Test Chamber In An Automated Mock Circulatory Loop, Antonio Walker Aug 2010

In Vitro Evaluation Of Mechanical Heart Valve Performance Using A Novel Test Chamber In An Automated Mock Circulatory Loop, Antonio Walker

Theses and Dissertations

Valvular heart disease (VHD) continues to have significant effects on many people’s lives, with numbers expected to grow tremendously over the next few years. Individuals suffering from severe valvular heart disease usually require a heart valve transplant in order to restore the native valve’s vital unidirectional flow regulation. Therefore, artificial heart valve (AHV) research is of very high importance. Previous research studies have provided substantial input in the realm of AHV design relative to durability, thrombotic and hemolytic potential, and overall functionality. However, modifications continue to be warranted due to limitations in the accuracy and time efficiency of the in …

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Adam10 Is A Critical Regulator Of B Cell Development, Antibody Production, And Myeloid-Derived Suppressor Cell Expansion: Effects Of B Cell-Specific Adam10 Deletion And Overexpression In Vivo., David Gibb Aug 2010

Adam10 Is A Critical Regulator Of B Cell Development, Antibody Production, And Myeloid-Derived Suppressor Cell Expansion: Effects Of B Cell-Specific Adam10 Deletion And Overexpression In Vivo., David Gibb

Theses and Dissertations

Proteolytic processing of transmembrane receptors and ligands can have dramatic effects on cell signaling and subsequent cellular responses. Previous studies demonstrated that a disintegrin and metalloproteinase 10 (ADAM10) may cleave numerous B cell-expressed receptors, including the low affinity IgE receptor (CD23). However, lethality of ADAM10-deficient embryos has limited examination of these cleavage events in lymphocytes. To investigate their role in B cell development and function, we generated B cell-specific ADAM10 knockout mice. Intriguingly, deletion prevented development of the entire marginal zone B cell (MZB) lineage. Further analysis revealed that ADAM10 is required for S2 cleavage of the Notch2 receptor and …

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[Aura], Stephanie Benassi Aug 2010

[Aura], Stephanie Benassi

Theses and Dissertations

[AURA] is a collection of photographs of landscapes and objects that have been implicated in fringe beliefs, alternative narratives and the strange events that reside beyond the scope of our everyday experiences. These photographs represent the symbols used to describe phenomena and also concentrate on the areas surrounding the events. My investigation also examines how the affect of the landscape has contributed to the interpretations by those that witnessed it. As a photographic collection, [AURA] investigates issues related to truth, as well as the role of subjectivity versus objectivity in my photographic practice. By concentrating this discussion on issues of …

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Image Processing Algorithms For Diagnostic Analysis Of Microcirculation, Sumeyra Ummuhan Demir Aug 2010

Image Processing Algorithms For Diagnostic Analysis Of Microcirculation, Sumeyra Ummuhan Demir

Theses and Dissertations

Microcirculation has become a key factor for the study and assessment of tissue perfusion and oxygenation. Detection and assessment of the microvasculature using videomicroscopy from the oral mucosa provides a metric on the density of blood vessels in each single frame. Information pertaining to the density of these microvessels within a field of view can be used to quantitatively monitor and assess the changes occurring in tissue oxygenation and perfusion over time. Automated analysis of this information can be used for real-time diagnostic and therapeutic planning of a number of clinical applications including resuscitation. The objective of this study is …

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In Vivo Measurement Of Rat Skeletal Muscle Oxygen Consumption Following Brief Periods Of Ischemia With Reperfusion As Assessed By Phosphorescence Quenching Microscopy, William Nugent Aug 2010

In Vivo Measurement Of Rat Skeletal Muscle Oxygen Consumption Following Brief Periods Of Ischemia With Reperfusion As Assessed By Phosphorescence Quenching Microscopy, William Nugent

Theses and Dissertations

Brief periods of skeletal muscle ischemia (ischemic pre-conditioning) alter cellular metabolism in a way that confers protection over subsequent ischemic episodes. The mechanisms behind this effect have been studied indirectly through assays for the byproducts of ATP synthesis and in vitro studies of cellular signaling cascades and ROS generation. There have been no direct, in vivo assessments of the changes in respiration during reperfusion. We employed phosphorescence quenching microscopy in conjunction with a flow-arrest technique to assess the influences of external, pressure-induced 1- to 10-min focal ischemia on interstitial oxygenation (PISFO2) and the consumption of oxygen (VO2) in spinotrapezius muscles …

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Canopy Disturbance And Reproduction In Cornus Florida L., Daniel Carr Aug 2010

Canopy Disturbance And Reproduction In Cornus Florida L., Daniel Carr

Theses and Dissertations

This study examined aspects of local reproductive variation in the flowering dogwood (Cornus florida L.) coincident with recent differences in primary canopy architecture. The dogwood trees in this study were impacted by a hurricane that created numerous treefall gaps, which created fine scale heterogeneity in the primary canopy. Fine scale disturbances in a forest can result in changes for multiple members of the forest community, including the reproductive responses of the trees and interspecific pollination mutualisms. Previously determined differences in offspring genetic structure suggested that pollen movement among genetically unstructured maternal individuals was significantly impacted between open, or disturbed, canopy …

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Variation In Sound Production Of The Blue Catfish, Ictalurus Furcatus., Zachary Ghahramani Aug 2010

Variation In Sound Production Of The Blue Catfish, Ictalurus Furcatus., Zachary Ghahramani

Theses and Dissertations

The blue catfish, Ictalurus furcatus, is an invasive species introduced to Virginia in 1974 and is the largest catfish in the United States. Like other Ictalurids, they are capable of producing disturbance calls via stridulation of the pectoral spine. These sounds can be made in air and water, and catfish can be preyed upon by both aerial and underwater predators. I characterized these putative distress calls by recording them in air and in the fish’s natural habitat. Sounds exhibited a wide variation in acoustic parameters relative to fish ontogeny: larger fish produced higher amplitude sounds with lower frequency bands. Sweep …

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Cannabinoid Receptors In The 3d Reconstructed Mouse Brain: Function And Regulation, Peter Nguyen Aug 2010

Cannabinoid Receptors In The 3d Reconstructed Mouse Brain: Function And Regulation, Peter Nguyen

Theses and Dissertations

CB1 receptors (CB1R) mediate the psychoactive and therapeutic effects of cannabinoids including ∆9-tetrahydrocannabinol (THC), the main psychoactive constituent in marijuana. However, therapeutic use is limited by side effects and tolerance and dependence with chronic administration. Tolerance to cannabinoid-mediated effects is associated with CB1R adaptations, including desensitization (receptor-G-protein uncoupling) and downregulation (receptor degradation). The objectives of this thesis are to investigate the regional-specificity in CB1R function and regulation. Previous studies have investigated CB1Rs in a subset of regions involved in cannabinoid effects, but an inclusive regional comparison of the relative efficacies of different classes of cannabinoids to activate G-proteins has not …

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Volumetric Growth Model Of Human Medulloblastoma In The Nude Mouse Cerebellum, Thomas Gavigan Aug 2010

Volumetric Growth Model Of Human Medulloblastoma In The Nude Mouse Cerebellum, Thomas Gavigan

Theses and Dissertations

Medulloblastoma is the most common brain tumor in children, accounting for 10-20% of primary central nervous system (CNS) neoplasms and approximately 40% of all posterior fossa tumors. It is a highly invasive embryonal neuroepithelial tumor that typically arises in the cerebellar vermis and has a tendency to disseminate throughout the CNS early in its course. The molecular mechanisms of the disease largely remain uncharacterized, as the clinical treatment is still associated with mortality and severe side effects. The development of a clinically relevant in vivo model is important not only to further understand the disease but also to provide a …

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Factors Affecting Gingival Excess, Altered Passive Eruption And Recession In The Mandibular Anterior And Premolar Sites, William Bohlen Aug 2010

Factors Affecting Gingival Excess, Altered Passive Eruption And Recession In The Mandibular Anterior And Premolar Sites, William Bohlen

Theses and Dissertations

Abstract FACTORS AFFECTING GINGIVAL EXCESS, ALTERED PASSIVE ERUPTION AND RECESSION IN THE MANDIBULAR ANTERIOR AND PREMOLAR SITES By William F Bohlen, D.M.D. A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in Dentistry at Virginia Commonwealth University. Virginia Commonwealth University, 2010 Major Director: Thomas Waldrop, DDS, MS Program director, Department of Periodontics, Virginia Commonwealth University AIM: The aim of this study was to determine the factors affecting gingival excess, altered passive eruption and recession. METHODS: 100 subjects were examined clinically and models of their mandible were fabricated. Demographic, periodontal and cast measurements were …

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Klf2/Klf4 Double Knock-Out Mouse Embryos Show Cranial Bleeding With Endothelial Disruption Of The Primary Head Vein, Benjamin Curtis Aug 2010

Klf2/Klf4 Double Knock-Out Mouse Embryos Show Cranial Bleeding With Endothelial Disruption Of The Primary Head Vein, Benjamin Curtis

Theses and Dissertations

Krüppel-like factors (KLFs) are a family of 3 Cys2/His2 zinc finger transcription factors with a diverse set of roles in cellular differentiation, cell cycle regulation, tumor suppression, erythropoiesis, angiogenesis, and other processes. During embryonic development, KLF2 has a role in vessel maturation. Adult conditional KLF4 knockout mouse embryos have thickened arterial intima follow vascular injury. Breeding KLF2+/- and KLF4+/- mice resulted in the generation of KLF2/KLF4 double knockout (DKO) embryos. KLF2/KLF4 DKO embryos died by E10.5 with cranial bleeding. Using immunohistochemistry, embryo whole-mounts were examined for differences in gross vascularization between wild-type (WT), KLF2-/- and KLF2/KLF4 (DKO embryonic day 9.5 …

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Novel Roles For Reelin In Retinogeniculate Targeting, Cheryl Haner Aug 2010

Novel Roles For Reelin In Retinogeniculate Targeting, Cheryl Haner

Theses and Dissertations

In the developing visual system, the axon of a pre-synaptic cell must be guided to a post-synaptic partner. Retinal ganglion cells (RGCs) in the eye are an excellent model to study this process. Multiple classes exist that respond to specific types of light input, and these project to different destinations in the brain that process distinct types of information. The RGC axons that navigate to the lateral geniculate nucleus (LGN) do so in a class-specific manner. Axons from RGCs that mediate non-image forming functions innervate the ventral LGN (vLGN) and the intergeniculate leaflet (IGL). Axons from RGCs that process image-forming …

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The Impact Of Adolescent Nicotine Exposure On Drug Dependence In Adulthood, Mai Alajaji Jul 2010

The Impact Of Adolescent Nicotine Exposure On Drug Dependence In Adulthood, Mai Alajaji

Theses and Dissertations

Nicotine is one of the first and most commonly abused drugs in adolescence. According to The Center for Disease Control, every day more than 6000 adolescents try their first cigarette and over 3000 of them become daily smokers. Smoking among adolescents is a strong predictor of future drug abuse and dependence in adulthood. A number of studies has suggests that adolescents pre-exposed to nicotine may suffer permanent disruption of the brain’s reward systems through changes in dopamine receptor function. We hypothesize that nicotine exposure during adolescence causes long lasting neurobiological alterations that increase the likelihood of cocaine use in adulthood. …

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Membrane-Bound Matrix Metalloproteinases Influence Reactive Synaptogenesis Following Traumatic Brain Injury, Kelly Warren Jul 2010

Membrane-Bound Matrix Metalloproteinases Influence Reactive Synaptogenesis Following Traumatic Brain Injury, Kelly Warren

Theses and Dissertations

Traumatic brain injury (TBI) produces axonal damage and deafferentation, triggering injury-induced synaptogenesis, a process influenced by matrix metalloproteinases (MMP) and their substrates. Here we report results of studies examining the expression and potential role of two membrane-bound MMPs, membrane-type 5-MMP (MT5-MMP) and a disintegrin and metalloproteinase-10 (ADAM-10), along with their common synaptic substrate N-cadherin, during the period of reactive synaptogenesis. Protein and mRNA expression of MT5-MMP, ADAM-10 and N-cadherin were compared in two TBI models, one exhibiting adaptive plasticity (unilateral entorhinal cortex lesion; UEC) and the other maladaptive plasticity (fluid percussion injury + bilateral EC lesions; TBI+BEC), targeting 2, 7, …

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The Relationship Among Maternal Infant Bonding, Spirituality, And Maternal Perception Of Childbirth Experience, Linda Bennington Jul 2010

The Relationship Among Maternal Infant Bonding, Spirituality, And Maternal Perception Of Childbirth Experience, Linda Bennington

Theses and Dissertations

The beginning of life is an intense experience for both mother and baby and sets the foundation for future interactions. Researchers have theorized that maternal infant bonding begins prenatally and continues on through the postnatal period. Mṻller (1996) examined that process to determine if prenatal bonding was related to postnatal bonding and discovered that there was only a modest correlation between the two. This led to speculation as to what variables, besides prenatal bonding, could influence postnatal bonding. Klaus & Kennell (1976) noted the detrimental effects of a lack of bonding in terms of abuse and attachment disorders and emphasized …

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Effects Of Alternative Prey As A Buffer To Predation Of Channel Catfish (Ictalurus Punctatus) By Largemouth Bass (Micropterus Salmoides), Shelley Nellis Jul 2010

Effects Of Alternative Prey As A Buffer To Predation Of Channel Catfish (Ictalurus Punctatus) By Largemouth Bass (Micropterus Salmoides), Shelley Nellis

Theses and Dissertations

Channel catfish have pectoral spines that lock to defend against gape-limited predators such as largemouth bass. Previous work indicated that spines increase survival of channel catfish exposed to bass but did not determine whether bass avoid catfish if less dangerous species are available. We presented bass with channel catfish and two alternatives, bluegill and goldfish, and compared order of ingestion, ingestion time, percent of successful strikes, and time spent chasing each prey species. We also presented the three species in a jar study that standardized position in the water column as well as in a net-pen study. The order of …

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The Effect Of Cobalt Protoporphyrin And Cobalt Chloride On Heme Oxygenase Expression And Protection From Deoxycholate-Induced Apoptosis, Tina Lawson Jul 2010

The Effect Of Cobalt Protoporphyrin And Cobalt Chloride On Heme Oxygenase Expression And Protection From Deoxycholate-Induced Apoptosis, Tina Lawson

Theses and Dissertations

The inner surface of the stomach is lined by a mucous membrane known as the gastric mucosa. The integrity of the gastric mucosa is critical for protecting the stomach from the low pH and proteolytic environment within the lumen. Both clinically and experimentally, exposure of gastric mucosal cells to bile salts is known to cause injury. Bile salts present in duodenogastric reflux are thought to play a significant role in gastric ulcer formation and alkaline gastritis. In vitro, studies using physiologic concentrations of the secondary bile salt, deoxycholic acid, indicate that bile salts can induce apoptosis in cultured human gastric …

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The Development And Use Of A Geographic Information System For Evaluating The Association Between Pesticide Exposure And Prostate Cancer, Kristen Wells Jul 2010

The Development And Use Of A Geographic Information System For Evaluating The Association Between Pesticide Exposure And Prostate Cancer, Kristen Wells

Theses and Dissertations

Abstract 1 – A Geographic Information System for Evaluating Residential Pesticide Exposure and Prostate Cancer Incidence Agricultural pesticide exposure is hypothesized to be a risk factor for prostate cancer, and such exposures are of particular concern for men living in farming communities where large-scale pesticide applications occur. Prostate cancer incidence data were obtained from the State Health Registry of Iowa for the years 1996 through 2006, and county and census tract level age-adjusted incidence rates were calculated. Historical crop-specific land use records and pesticide sales data for the state of Iowa during 1990 were integrated into a geographic information system …

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Vaudeville: A How To Guide, Evan Anderson Jul 2010

Vaudeville: A How To Guide, Evan Anderson

Theses and Dissertations

At the turn of the twentieth century vaudeville was the most prevalent form of theatrical entertainment. With more than 1,500 houses across the country, vaudeville reached in excess of 30 million audience members each year. It directly led to the advent of film and radio. Yet barely one hundred years later vaudeville has been forgotten by the once loyal masses. This guide is meant to help counter vaudeville’s fall. By adding together a basic script consisting of comedy and dramatic sketches, original works and classic vaudeville acts with music and information on the how and whys of vaudeville, this guide …

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The Mechanism Of Obesity In Rai1+/- Mice, Kristie Schmidt Jul 2010

The Mechanism Of Obesity In Rai1+/- Mice, Kristie Schmidt

Theses and Dissertations

Smith-Magenis syndrome (SMS) is a genetic disorder caused by a deletion or mutation of the retinoic acid induced 1 (RAI1) gene on chromosome 17p11.2 that results in haploinsufficiency. SMS patients with a deletion account for 90% of the cases, while the other 10% have a mutation in RAI1. The syndrome is characterized by cognitive impairment, craniofacial abnormalities, sleep disturbances, developmental delay, obesity, and behavioral phenotypes. SMS is thought to affect 1:25,000 live births, although due to similar infantile phenotypes with Down syndrome and Prader-Willi syndrome, SMS may be mis- or under-diagnosed. In a study of 54 children, it was shown …

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Strategies To Employ Androstenediol To Reverse Steroid Inhibited Healing In A Rat Model Of Trauma, Francis Diskin Jul 2010

Strategies To Employ Androstenediol To Reverse Steroid Inhibited Healing In A Rat Model Of Trauma, Francis Diskin

Theses and Dissertations

Much of our current understanding regarding trauma, mechanisms of healing, and treatment strategies have evolved as a result of injuries suffered during armed conflict. While our understanding of these processes has advanced during and since these conflicts, treatment methods of traumatic wound healing have failed to progress significantly in the last forty years. The overall objective of this research was to test the hypothesis that the immune regulating hormone Androstenediol (AED) modulates the host’s immune system to promote wound healing under conditions where it has been inhibited by stress and infection. In an effort to characterize the effects of Androstenediol …

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Factors Influencing The Abundance, Community Composition And Activity States Of Bacterioplankton From The Tidal Freshwater James River, Catherine Luria Jul 2010

Factors Influencing The Abundance, Community Composition And Activity States Of Bacterioplankton From The Tidal Freshwater James River, Catherine Luria

Theses and Dissertations

Aquatic bacteria respond to changing environmental conditions through a variety of mechanisms including changes in abundance, shifts in community composition and variable activity states. In the tidal-freshwater James River, variation in bacterial abundance was linked to nutrient availability and autochthonous production with highest bacterial densities associated with low-nutrient, high-chlorophyll a conditions. Laboratory experiments revealed that bacterial growth rates were nutrient limited at the low-nutrient site, while co-limitation (nutrients, glucose, light) was apparent at the high nutrient site. Despite large differences in abundance, community composition was similar based on TRFLP and 16S rDNA pyrosequencing. Community similarity was lower among rRNA libraries …

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Pathogenic Role Of Phosphodiesterase Type 5 Upregulation In Cardiac Ischemia/Reperfusion Injury, Daniel Hobbs Jul 2010

Pathogenic Role Of Phosphodiesterase Type 5 Upregulation In Cardiac Ischemia/Reperfusion Injury, Daniel Hobbs

Theses and Dissertations

Phosphodiesterase Type 5 (PDE5) inhibitors are cardioprotective against ischemia/reperfusion (I/R) injury. However, it remains uncertain if I/R affects PDE5. We hypothesized that generation of reactive oxygen species (ROS) during I/R leads to upregulation of PDE5, which contributes to pathological changes following acute myocardial infarction (AMI). Adult male ICR mice were subjected to 30 minutes of in vivo or ex vivo I/R. To examine the role of ROS, a subset of hearts were perfused with 100 µM hydrogen peroxide (H2O2). Expression and activity of PDE5, pPDE5, and cGMP-dependent protein kinase (PKG) were measured by Western blots and spectrophotometric assay. The results …

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Sub, Counter And Someothers, Tim Bearse Jul 2010

Sub, Counter And Someothers, Tim Bearse

Theses and Dissertations

Textual accompaniment to the exhibition Blizzard Skitch. This thesis discusses parallels between body cognition in skateboarding and object cognition in sculpture and architecture.

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Commonwealth Times 2010-07-01 Jul 2010

Commonwealth Times 2010-07-01

Commonwealth Times, 1969-

No abstract provided.

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An Assessment Of The Methods That Are Used To Recruit College Students Into The Turkish Hezbollah., Tuncay Unal Jun 2010

An Assessment Of The Methods That Are Used To Recruit College Students Into The Turkish Hezbollah., Tuncay Unal

Theses and Dissertations

This study aims to identify tactics used by the Turkish Hezbollah to recruit college students into joining their terrorist organization. This study based on the assumptions that social networks and institutional structures are two main tools that are used effectively by the Turkish Hezbollah to recruit college educated students. In this sense, the researcher claims that Social Learning theory and Social Control Theories can be used to provide theoretical explanation to the Hezbollah’s recruitment strategy. Parallel to these theories assumptions, while having militants within social networks increases the likelihood of being recruited through social learning theory assumptions, college students who …

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Novel Mechanism In Astrocyte Gene Regulation And Function, Sandeep Singh Jun 2010

Novel Mechanism In Astrocyte Gene Regulation And Function, Sandeep Singh

Theses and Dissertations

This dissertation sheds light on several novel mechanistic findings in astrocyte specific gene regulation and function by the NFI-X transcription factor which can be further extrapolated to astrocyte differentiation and glial tumor invasion. First, we cloned and analyzed human NFI-X3, a novel splice variant of the nfix gene, which contains a unique transcriptional activation (TA) domain completely conserved in primates. In contrast to previously cloned NFI-X1, overexpression of NFI-X3 potently activates NFI reporters, including GFAP reporter, in astrocytes and glioma cells. The expression of NFI-X3 is dramatically upregulated during the differentiation of neural progenitors to astrocytes and precedes the expression …

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Ex Vivo Expansion Of Tumor-Specific T Cells With Sequential Common Gamma Chain Cytokines Render Them Refractory To Mdsc Upon Adoptive Immunotherapy., Debasmita Basu Jun 2010

Ex Vivo Expansion Of Tumor-Specific T Cells With Sequential Common Gamma Chain Cytokines Render Them Refractory To Mdsc Upon Adoptive Immunotherapy., Debasmita Basu

Theses and Dissertations

Myeloid derived suppressor cells (MDSCs) are heterogeneous population of immature cells at various stages of differentiation, characterized by the presence of CD11b and Gr1 in mice. They are major contributors of the tumor-induced immune suppression against the tumors. So far, various strategies have been introduced to overcome the endogenous MDSCs. Most of these approaches rely on the elimination of MDSCs and it is not clear whether tumor-reactive T cells may be differentiated towards phenotypes that are refractory to MDSCc. Our laboratory has previously shown that high affinity T cells derived from tumor-sensitized wild-type FVB mice and expanded ex vivo with …

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