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In Silico Identification Of Potential Biomass And Cell Wall Degrading Enzymes In The Microbial Community Of The Red Sea Atlantis-Ii Brine Pool Using Metagenomic Approach, Norhan Mohammed Magdy Mofeed
In Silico Identification Of Potential Biomass And Cell Wall Degrading Enzymes In The Microbial Community Of The Red Sea Atlantis-Ii Brine Pool Using Metagenomic Approach, Norhan Mohammed Magdy Mofeed
Theses and Dissertations
Atlantis II is the largest brine pool in the Red Sea. It lies at 2,200m deep with an area of about 60km2. The lower convective layer of the Atlantis II brine pool (ATII-LCL) is characterized by extreme conditions, the temperature reaches 68.2°C, salinity of 270 psu, and there is high concentration of heavy metals. Microbial communities inhabiting this harsh environment are expected to have enzymes and proteins that are adapted to these conditions. Such proteins and enzymes would be very attractive candidates not just to understand the structural alteration that lead to their adaptation to these abiotic factors, but also …
The Image Of Woman In Pre-Islamic Qasida: The Mu’Allaqat Poetry As A Case Study., Yakubu Zahrrah Kamaldeen
The Image Of Woman In Pre-Islamic Qasida: The Mu’Allaqat Poetry As A Case Study., Yakubu Zahrrah Kamaldeen
Theses and Dissertations
This study is intended to examine the depiction of woman in the pre-Islamic poetic collection known as the Mu'allaqat; which are considered the best piece of poetic collection in literary Arabic. The significance of this study is to identify the true rationale behind the poets' over emphasis on woman in their odes. A combination of both empirical and library-based method is adopted in this study and Discourse and Qualitative contents Analysis are the techniques applied in interpreting the data. The study identifies two different types of women in the odes, the ideal woman who is not a specific woman per …
The Dynamics Of Oppression Portrayed In Harold Pinter's One For The Road And Salah Abdul-Saboor's Night Traveller, Salma Zohdi
The Dynamics Of Oppression Portrayed In Harold Pinter's One For The Road And Salah Abdul-Saboor's Night Traveller, Salma Zohdi
Theses and Dissertations
This thesis comparatively analyzes the dynamics of oppression portrayed in Harold Pinter's One for the Road, and Salah Abdul-Saboor's Night Traveller, using Augusto Boal's Theatre of the Oppressed, Frantz Fanon's The Wretched of the Earth, and â Theater of the Absurdâ for the critical framework. With oppressive regimes regenerating themselves, and morphing into new types of practices, the power of art remains an essential motivation for the masses to resist those regimes. This applies particularly to theater, due its vitality. Whilst one may utilize a theatrical performance to entertain, others may utilize it to either inspire resistance, or chronicle and …
The Occupy Wall Street Movement As A 'Space Of Profanation', Alberto Rinaldi
The Occupy Wall Street Movement As A 'Space Of Profanation', Alberto Rinaldi
Theses and Dissertations
Born in a crucial historical moment - the decennial of 9/11, and more than ten years after the anti-globalization movement of Seattle - the Occupy Wall Street movement (OWS) has awaken again protest and dissent, for the first time at the heart of the largest financial centre of world. More â mature' than its predecessor and also increasingly more encompassing, this movement is presently working as a sort of â sounding board' of protest and dissent, finding its inspiration in the Arab Spring, the Spanish indignados, and in all other forms of systemic protests that have flared around the world …
Trickle Down This Effect: Negotiations Of Culture, Care, And Freedom In Contemporary Cairo International Schools, Anne Caldwell
Trickle Down This Effect: Negotiations Of Culture, Care, And Freedom In Contemporary Cairo International Schools, Anne Caldwell
Theses and Dissertations
This thesis attempts to analyze the contradictions and practices of a neoliberal ethical project among a privileged class in contemporary Cairo. The growing presence and availability of international schools in Cairo has reconfigured particular aspects of culture, care, and freedom for elite subjects over the past forty years. The main research question is: how are globalized notions of well being, self-realization, and personal fulfillment transmitted through the work of neoliberal discourse and staff at international schools in Cairo. It has been identified in this thesis that certain forms of care and responsibility are tightly bound and shaped by a neoliberal …
The Attitude Of Egyptian Nubian University Students Towards Arabic And Nubian Languages, Sanaa Gamal Abou-Ras
The Attitude Of Egyptian Nubian University Students Towards Arabic And Nubian Languages, Sanaa Gamal Abou-Ras
Theses and Dissertations
This research investigates the attitude of Egyptian Nubian university students towards the Arabic and the two Nubian languages, Nobiin and Kenuzi-Dongola. The Nubian languages are called by Egyptian Nubians, Fadijja/Fadicca and Kenzi, respectively. Nubians are people who live in the Nubia area which lies between Egypt's southern borders with the northern part of Sudan. Nubia is divided into two parts - one under the Egyptian regime, and the other under the Sudanese regime. The number of participants used in the study was forty - half male and half female. Twenty of these participants live in the Nubian region and are …
Otx But Not Mitf Transcription Factors Are Required For Zebrafish Rpe Development, Brandon Lane
Otx But Not Mitf Transcription Factors Are Required For Zebrafish Rpe Development, Brandon Lane
Theses and Dissertations
Mitf and Otx transcription factors have been identified as essential to the development of the retinal pigmented epithelium (RPE), but the relationship between these factors and their specific role in the RPE developmental pathway have not been clearly defined. The role of the two Mitf transcription factors (Mitfa and Mitfb) and two Otx transcription factors (Otx1a and Otx2) in zebrafish RPE development was explored in these experiments. The loss of Mitf activity in mitfa, mitfb, or double mitf null mutant fish lines had no effect on RPE pigmentation or development. The loss of Otx2 activity through morpholino knockdown produced a …
An Agent Based Model Of Tumor Growth And Response To Radiotherapy, Nicole O'Neil
An Agent Based Model Of Tumor Growth And Response To Radiotherapy, Nicole O'Neil
Theses and Dissertations
An agent based model was developed to examine the growth of a tumor in a healthy cell population. Response to radiation and impact of mutation and bystander effects were studied. In the growth model, the cancer cells proliferated outward becoming invasive. The mass of cancer cells developed a necrotic core. Various treatment protocols of radiation were compared. Timing of treatments was critical to the success of therapy. The event of mutation was rare. When mutation occurred, either unsuccessful treatment or re-growth could result. Multiple rounds of radiation potentially led to increased mutation. Low levels of the bystander effect had little …
The Antinociceptive Effects Of Alpha 7 Nicotinic Acetylcholine Receptor Positive Allosteric Modulators In Different Animal Pain Models, Kelen Freitas
The Antinociceptive Effects Of Alpha 7 Nicotinic Acetylcholine Receptor Positive Allosteric Modulators In Different Animal Pain Models, Kelen Freitas
Theses and Dissertations
The α7 nicotinic acetylcholine receptor (nAChR) subtype is abundantly expressed in the central nervous system (CNS) and in the periphery. Positive allosteric modulators (PAMs) of the α7 increase the response to an agonist and are divided into two types depending on whether they also decrease desensitization of the receptor (type II) or not (type I). Therefore, this study aims to investigate whether the enhancement of endogenous α7 nAChR function will result in a beneficial effect in nociceptive, inflammatory and chronic neuropathic pain models. While NS1738 and PNU-120596 were not active to reduce acute thermal pain, measured by hot-plate and tail-flick …
T-Bet-Dependent Regulation Of T Cell Responses During Trypanosoma Cruzi Infection, Dustin Cobb
T-Bet-Dependent Regulation Of T Cell Responses During Trypanosoma Cruzi Infection, Dustin Cobb
Theses and Dissertations
The human pathogen Trypanosoma cruzi is an intracellular parasite and the etiological agent of Chagas disease. Protective immune responses to T. cruzi are highly dependent on T helper 1 and CD8+ T cells which produce interferon-gamma. A deficiency in these responses has severe consequences on the ability to control infection. Our investigation into the role of the Th1 transcription factor, T-bet, during murine T. cruzi infection revealed that T-bet is required for resistance. Contrary to our expectations, T-bet was not required for the development of Th1 immunity during infection, as T-bet-deficient mice still developed interferon-gamma-producing T cells. However, T-bet was …
Seeing (The Other) Through A Terministic Screen Of Spirituality: Emotional Integrity As A Strategy For Facilitating Identification, Jarron Benjamin Slater
Seeing (The Other) Through A Terministic Screen Of Spirituality: Emotional Integrity As A Strategy For Facilitating Identification, Jarron Benjamin Slater
Theses and Dissertations
Although philosopher Robert Solomon and rhetorician Kenneth Burke wrote in isolation from one another, they discuss similar concepts and ideas. Since its introduction in Burke's A Rhetoric of Motives, identification has always been important to rhetorical theory, and recent studies in emotion, such as Solomon's, provide new insight into modes of identification—that human beings can identify with one another on an emotional level. This paper places Solomon and Burke in conversation with one another, arguing that both terministic screens and emotions are ways of seeing, acting, engaging, and judging. Hence, terministic screens and emotions affect ethos, or character, both …
Characterization Of Altered Epithelial Cell Turnover And Differentiation In Embryonic Murine Lungs That Over-Express Receptors For Advanced Glycation End-Products (Rage), Jeffrey Alan Stogsdill
Characterization Of Altered Epithelial Cell Turnover And Differentiation In Embryonic Murine Lungs That Over-Express Receptors For Advanced Glycation End-Products (Rage), Jeffrey Alan Stogsdill
Theses and Dissertations
Receptors for advanced glycation end-products (RAGE) are multi-ligand cell surface receptors highly expressed in the lung that modulate pulmonary inflammation during disease. However, the contributions of RAGE signaling are unknown during pulmonary organogenesis. In order to test the hypothesis that RAGE misexpression adversely affects lung morphogenesis, conditional transgenic mice were generated that over-express RAGE in alveolar type II cells of the lung. When RAGE is over-expressed throughout embryogenesis, severe lung hypoplasia ensues, culminating in perinatal lethality. Flow cytometry and immunohistochemistry employing cell-specific markers for various distal cell types demonstrated anomalies in key epithelial cell populations resulting from RAGE up-regulation through …
Validation Of 3'-Deoxy-3'-[18f]-Fluorothymidine Positron Emission Tomography For Image-Guidance In Biologically Adaptive Radiotherapy, Marian Axente
Validation Of 3'-Deoxy-3'-[18f]-Fluorothymidine Positron Emission Tomography For Image-Guidance In Biologically Adaptive Radiotherapy, Marian Axente
Theses and Dissertations
Accelerated tumor cell repopulation during radiation therapy is one of the leading causes for low survival rates of head-and-neck cancer patients. The therapeutic effectiveness of radiotherapy could be improved by selectively targeting proliferating tumor subvolumes with higher doses of radiation. Positron emission tomography (PET) imaging with 3´-deoxy-3´-[18F]-fluorothymidine (FLT) has shown great potential as a non-invasive approach to characterizing the proliferation status of tumors. This thesis focuses on histopathological validation of FLT PET imaging specifically for image-guidance applications in biologically adaptive radiotherapy. The lack of experimental data supporting the use of FLT PET imaging for radiotherapy guidance is addressed by developing …
Reflections Of Self, Melissa Athey
Reflections Of Self, Melissa Athey
Theses and Dissertations
I vacillate between all extremes, beauty vs. ugly, internal vs. external, micro vs. macro. It is these disparate notions that inspire what I make. We cannot ever see ourselves objectively, but does that mean we shouldn’t try? This thesis is my attempt to dissect what I created in my 2 years at Virginia Commonwealth University, my exploration of the illness within and the psychological nature of how we go about hiding our insecurities.
Testing Crayfish Evolutionary Hypotheses With Phylogenetic Methods, Jesse W. Breinholt
Testing Crayfish Evolutionary Hypotheses With Phylogenetic Methods, Jesse W. Breinholt
Theses and Dissertations
This dissertation focuses on increasing the understanding of the evolution processes that have contributed to the diversification of freshwater crayfish. Chapter one estimates the divergence time of the three crayfish families and tests the hypothesis that diversification is tied to the break-up of Pangaea, Gondwanna, and Laurasia. I find that the families of crayfish diverged prior to or in association with the break-up of the three super continents. Chapter two addresses the evolutionary history of the genus Cambarus, using molecular data to test hypotheses of relationships based on chela and carapace morphology. The results provide evidence that the morphology used …
Effects Of Soybean-Derived Phytoestrogens On Reproductive Tract Development In Neonatal Male And Female Pigs:, Kevin Wade Necaise
Effects Of Soybean-Derived Phytoestrogens On Reproductive Tract Development In Neonatal Male And Female Pigs:, Kevin Wade Necaise
Theses and Dissertations
The objective of this study was to evaluate the effects of orally administered soy-derived extracts on normal reproductive development in neonatal pigs as a model for infants on soy formula. Yorkshire-Landrace crossbred sows were randomly assigned to a lactating diet supplemented with either Novasoy 70 or without. Feed was top-dressed from d 100 of gestation until farrowing. Neonatal pigs (NPs) were weighed on post natal day (PND) six then randomly assigned to one of four treatments 1) control, 2) estradiol, 3) low, or 4) high genistein dose. This study demonstrates that oral exposure of NPs to estradiol but not genistein …
A Study Of Selection On Microsatellites In The Helianthus Annuus Transcriptome, Sreepriya Pramod
A Study Of Selection On Microsatellites In The Helianthus Annuus Transcriptome, Sreepriya Pramod
Theses and Dissertations
The ability of populations to continually respond to directional selection even after many generations instead of reaching response plateaus suggests the presence of mechanisms for rapidly generating novel adaptive variation within organismal genomes. The contributions of cis regulation are now being widely studied. This study details the contributions of one such mechanism capable of generating adaptive genetic variation through transcribed microsatellite mutation. Microsatellites are abundant in eukaryotic genomes, exhibit one of the highest known mutation rates; and mutations involve indels that are reversible. These features make them excellent candidates for generating variation in populations. This study explores the functional roles …
A Ten-Millennia Lens: Landscape, Culture And History At Russell Cave National Monument, Jesse Randall English
A Ten-Millennia Lens: Landscape, Culture And History At Russell Cave National Monument, Jesse Randall English
Theses and Dissertations
Developed out of a need for a reliable methodology of documenting historic landscapes, the National Park Service uses Cultural Landscape Reports to determine the significance and integrity of historic landscapes. Treatment recommendations developed from an analysis of site history and existing conditions guide the management decisions of cultural landscapes. Russell Cave National Monument, located in Bridgeport, Alabama, contains one of the oldest continuous archeological records in North America. A cultural landscape report for the park had not yet been completed. This research consists of a historical narrative covering the 10,000 years of human occupation in the cave, a documentation of …
An Applied Investigation Of Corn-Based Distillers Dried Grains With Solubles In The Production Of Natural Fiber-Plastic Composites, Hugo Eudosio Castillo
An Applied Investigation Of Corn-Based Distillers Dried Grains With Solubles In The Production Of Natural Fiber-Plastic Composites, Hugo Eudosio Castillo
Theses and Dissertations
The main objective of this research was to examine uses for distillers dried grains with solubles (DDGS), a coproduct of ethanol production plant, in the fiber-reinforced plastic composites industry. Initially the effort intended to take advantage of the DDGS components, using chemical reactions, to produce coupling agents to improve the physical properties of the composite. Four different chemicals plus water were used to convert proteins into soluble amino acids. The results were not as expected, and appeared to show an early pyrolysis of DDGS components. This may be due to regeneration of proteins when pH of solutions is neutralized. Procedures …
An Assessment Of Student Performance In Career And Technical Education Programs And On Core Academic Subject Areas, Annie Jeanette Snow
An Assessment Of Student Performance In Career And Technical Education Programs And On Core Academic Subject Areas, Annie Jeanette Snow
Theses and Dissertations
The purpose of this study was to examine the quality of career and technical education programs on high school students. Specifically, the study addressed the percentage of CTE completers meeting Carl Perkins’ placement indicators in the areas of post secondary education, employment in the field trained or related field, and the military. The study examined whether the percentage of dropout for CTE students was reduced between 2006 and 2010. The study examined whether significant differences existed between CTE participants and non-CTE participants (regular high school students) based on their scores in United States History, English II Writing, English II Multiple …
Assessment Of Management Factors Prior To Breeding And Their Impact On Bovine Fertility, Kathryn Erin Pfeiffer
Assessment Of Management Factors Prior To Breeding And Their Impact On Bovine Fertility, Kathryn Erin Pfeiffer
Theses and Dissertations
Management of female infertility is a primary determinant of economic efficiency in the cattle industry. Management factors involved in impacting fertility include identification of females with suboptimal fertility and reducing the period of anestrus, prior to pubescence and after parturition. The use of anti-Müllerian hormone in the identification of females with suboptimal follicular populations allows for selection of females with optimal follicular populations and could reduce infertility resulting from a decrease in the quantity of follicles. A reduction in the period of anestrus also impacts fertility and management strategies that induce an ovulatory response in anestrous females improves fertility. Biostimulation …
Biomechanical Evaluation Of Locking Compression Plate/Rod Constructs And Limited Contact-Dynamic Compression Plate/Rod Constructs In A Gap Model, Wilburn Maret Maxwell
Biomechanical Evaluation Of Locking Compression Plate/Rod Constructs And Limited Contact-Dynamic Compression Plate/Rod Constructs In A Gap Model, Wilburn Maret Maxwell
Theses and Dissertations
Fractures occur commonly in veterinary medicine and are usually the result of vehicular trauma. Traditionally, comminuted mid-diaphyseal fractures are repaired with an interlocking nail, dynamic compression plate, or combination of a bone plate with an intramedullary pin. In recent years, the locking compression plate has gained popularity in human orthopedics due to its biomechanical characteristics and stability in osteoporotic or periprosthetic bone. In addition, the plate may be applied in a percutaneous manner, thereby allowing for biological osteosynthesis. This study evaluates the combination of a locking compression plate and an intramedullary pin in a Delrin rod gap model. Modalities tested …
Bird, Plant, And Herpetofaunal Associations In Cove Forests And Pine Plantations In Mississippi, Aaron Weston Posner
Bird, Plant, And Herpetofaunal Associations In Cove Forests And Pine Plantations In Mississippi, Aaron Weston Posner
Theses and Dissertations
I investigated plant and animal community characteristics on 14 forest stands in north central Mississippi. Study sites included 9 pine plantations, 3 streamside management zones, and 2 hardwood cove forests. I estimated relationships between faunal metrics and habitat characteristics. I measured vegetation characteristics within quadrant and nested plot designs to estimate understory, midstory, and overstory species composition and structure. I inventoried breeding birds using point count surveys and sampled herpetofauna diversity using area-constrained searches within belt transects during 2008 and 2009. I detected 39 species of birds in 2008, 43 species of birds in 2009, 11 species of amphibians, and …
Development Of An Innovative Detection Technology For Escherichia Coli O157:H7, Qian Gu
Development Of An Innovative Detection Technology For Escherichia Coli O157:H7, Qian Gu
Theses and Dissertations
Escherichia coli O157:H7 detection in food is conducted mainly by DNA/PCR, immunoassay or conventional methods. However, all the methods require multiple incubation steps. Antibiotic and isolation agars were found as the main factors that lead to false-positive results. An improved rapid detection method was developed by decreasing detection time and enhancing easiness of detection without the need for any analytical instrumentation. A combination of selective ingredients and temperature was utilized to allow the growth of Escherichia coli O157:H7 in the detection. The detection method minimized the effects of the main false positive bacteria, Pseudomonas spp. and Enterobacter spp. The sensitivity, …
Effects Of Different Oral Doses Of Cyclosporine On T-Lymphocyte Biomarkers Of Immunosuppression In Normal Dogs, Todd Marlow Archer
Effects Of Different Oral Doses Of Cyclosporine On T-Lymphocyte Biomarkers Of Immunosuppression In Normal Dogs, Todd Marlow Archer
Theses and Dissertations
Cyclosporine is a potent immunosuppressive agent used to treat a wide range of canine inflammatory diseases. Unfortunately, optimal dosing protocols for achieving immunosuppression with cyclosporine in dogs remain unclear, and standard methods that objectively monitor effectiveness of immunosuppression have not been established. We evaluated an already established panel of biomarkers of immunosuppression in vivo with two oral dosages of cyclosporine in seven normal dogs, a high dosage known to induce immunosuppression and a lower dosage used to treat atopy, with a washout period between the two dosages. The biomarker panel included the flow cytometric evaluation of T-lymphocyte cytokine expression (IL-2, …
Efficacy And Biodegradability Of Pentachlorophenol In Conventional And Biodiesel Amended Carriers, Saeed Keshani Langroodi
Efficacy And Biodegradability Of Pentachlorophenol In Conventional And Biodiesel Amended Carriers, Saeed Keshani Langroodi
Theses and Dissertations
Pentachlorophenol (PCP) is widely used as a wood preservative for wood products. It has been proposed that a modified PCP carrier system based on a diesel/biodiesel mixture should be used in place of the conventional diesel/KB3 carrier, but there is some question as to whether or not this modified carrier system can provide the same service life for wood products treated with PCP. The main objectives of this research were to evaluate: 1) the comparative biodegradability of PCP in soil containing either diesel/KB3 or diesel/biodiesel, and 2) the comparative decay resistance of wood treated with formulations containing either diesel/KB3 or …
Impact And Management Of Twospotted Spider Mite In Pre-Flowering Cotton, William Sidney Scott
Impact And Management Of Twospotted Spider Mite In Pre-Flowering Cotton, William Sidney Scott
Theses and Dissertations
Experiments were conducted to determine the impact of twospotted spider mite, Tetranychus urticae Koch, on cotton injury and yield. Artificial infestations were initiated at the three leaf stage of cotton growth and removed after specified durations of infestation. Yields were reduced for durations of infestation 21 days or greater. In a second experiment, the interactions between twospotted spider mite, thrips, at-planting insecticides, and foliar insecticides were studied to determine their impact on cotton yields. Twospotted spider mites and thrips reduced cotton yield. In a third experiment, twospotted spider mites were released from a central point in 0.024 hectare blocks of …
Control Of Salmonella Biofilms By Essential Oils And Reduction Of Salmonella In Ground Turkey By Lauric Arginate And Carvacrol, Ademola Oladunjoye
Control Of Salmonella Biofilms By Essential Oils And Reduction Of Salmonella In Ground Turkey By Lauric Arginate And Carvacrol, Ademola Oladunjoye
Theses and Dissertations
Salmonella is often associated with retail poultry products. Our research evaluated the effect of temperature on the biofilm formation by Salmonella spp. and the efficacy of essential oils in controlling these biofilms on stainless steel surfaces. The sublethal concentrations of thyme, oregano and carvacrol at 0.006-0.012% suppressed biofilm formation by Salmonella spp. while concentrations at 0.05-0.1% reduced the biofilms of a three-strain mixture of Salmonella spp. by 7 logs. Carvacrol was evaluated in combination with lauric arginate for controlling the three-strain mixture of Salmonella spp. in ground turkey containing 1%, 7% or 15% fat. Higher concentrations of carvacrol (1%) or …
Cow-Calf Operations In The Southeastern United States: An Analysis Of Farm Characteristics And Production Risks, Tracey Scott Adkins
Cow-Calf Operations In The Southeastern United States: An Analysis Of Farm Characteristics And Production Risks, Tracey Scott Adkins
Theses and Dissertations
Beef cattle production in the southeastern United States differs in size, practice, and production type from other U.S. regions. Smaller, cow-calf type operations dominate in this region because the climate, forage availability, and other land use practices of farmers make this type of cattle operation more ideal for the Southeast. This research summarizes the current practices and characteristics that define the Southeastern cow-calf operation of today’s market and operating environment; it also examines the factors that influence the variability of beef production in these operations. Results indicate the following major points: 1.) 53.0% of respondents with commercial cows have fewer …
Cultivation Of Oleaginous Microorganism Consortium On Municipal Wastewater For The Production Of Lipids, Jacqueline Isonhood Hall
Cultivation Of Oleaginous Microorganism Consortium On Municipal Wastewater For The Production Of Lipids, Jacqueline Isonhood Hall
Theses and Dissertations
Alternative fuels are necessary to meet the increasing demands for fuels. Alternative fuels such as biodiesel are produced using vegetable oils, which are prominentt in the food industry. An alternate feedstock could be oil-producing microorganisms. These oleaginous microorganisms are defined as accumulating more than 20% of their weight in oil as lipids. Cultivating these microorganisms for oil production is not economical due to the high production costs from the sugars in the culture medium. Municipal wastewater could be a potential growth medium that has not previously been considered for cultivating oleaginous microorganisms. However, municipal wastewater contains a low concentration of …