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Interactive Part Selection For Mesh And Point Models Using Hierarchical Graph-Cut Partitioning, Steven W. Brown Jun 2008

Interactive Part Selection For Mesh And Point Models Using Hierarchical Graph-Cut Partitioning, Steven W. Brown

Theses and Dissertations

This thesis presents a method for interactive part selection for mesh and point set surface models that combines scribble-based selection methods with hierarchically accelerated graph-cut segmentation. Using graph-cut segmentation to determine optimal intuitive part boundaries enables easy part selection on complex geometries and allows for a simple, scribble-based interface that focuses on selecting within visible parts instead of precisely defining part boundaries that may be in difficult or occluded regions. Hierarchical acceleration is used to maintain interactive speeds with large models and to determine connectivity when extending the technique to point set models.


Intravenous Administration Of Perfluorocarbon Emulsions As A Non-Recompression Therapy For Decompression Sickness, Cameron Smith Jun 2008

Intravenous Administration Of Perfluorocarbon Emulsions As A Non-Recompression Therapy For Decompression Sickness, Cameron Smith

Theses and Dissertations

Decompression sickness (DCS) results from a sudden decrease in ambient pressure leading to super-saturation of tissues with inert gas and subsequent bubble formation within both tissues and blood. Perfluorocarbons (PFC) are able to dissolve vast amounts of non-polar gases. The administration of intravenous (I.V.) PFC emulsions reduce both morbidity and mortality of DCS, but the mechanism of this protective effect has not yet been demonstrated. Juvenile Dorper cross sheep between 16 and 24 kg (n=31) were anaesthetized and instrumented for physiological monitoring, the administration of I.V. fluids and sampling of arterial and mixed venous blood. Animals were placed in a …


Developing Network Situational Awareness Through Visualization Of Fused Intrusion Detection System Alerts, Serafin A. Avitia V Jun 2008

Developing Network Situational Awareness Through Visualization Of Fused Intrusion Detection System Alerts, Serafin A. Avitia V

Theses and Dissertations

With networks increasing in physical size, bandwidth, traffic volume, and malicious activity, network analysts are experiencing greater difficulty in developing network situational awareness. Traditionally, network analysts have used Intrusion Detection Systems to gain awareness but this method is outdated when analysts are unable to process the alerts at the rate they are being generated. Analysts are unwittingly placing the computer assets they are charged to protect at risk when they are unable to detect these network attacks. This research effort examines the theory, application, and results of using visualizations of fused alert data to develop network situational awareness. The fused …


Sympathetic Observations: Widowhood, Spectatorship, And Sympathy In The Fiction Of Henry James, George Michael Gordon-Smith Jun 2008

Sympathetic Observations: Widowhood, Spectatorship, And Sympathy In The Fiction Of Henry James, George Michael Gordon-Smith

Theses and Dissertations

This thesis explores the roles of widowhood and sympathy in Henry James's short and long fiction. By the time James established himself as a writer of fiction, the culture of sentiment and its formation of sympathetic identification had become central to American and British writers. Critically, however, sympathy in James's fiction has been overlooked because he chose to write about rich expatriates and European nobility. James's pervasive use of widowed characters in his fiction suggests the he too participated in the same aesthetic agenda as William Dean Howells and George Eliot to evoke sympathy in their readers as a means …


Oral Retelling As A Measure Of Reading Comprehension: The Generalizability Of Ratings Of Elementary School Students Reading Expository Texts, Rachel Clinger Burton Jun 2008

Oral Retelling As A Measure Of Reading Comprehension: The Generalizability Of Ratings Of Elementary School Students Reading Expository Texts, Rachel Clinger Burton

Theses and Dissertations

The purpose of this study was to refine a rating procedure used to assess intermediate elementary school students' ability to orally retell what they had read from two expository passages. Oral retellings from 28 fourth grade students were tape-recorded and rated on two different occasions by each of 4 raters. A four-facet (passage, day of test administration, rater, and rating occasion) generalizability study was conducted using a partially nested design. The six largest sources of variability identified in the G-study included (a) students, (b) the student-by-day interaction, (c) the interaction of passage with rater (nested within student and day), (d) …


The Man In The Transatlantic Crowd: The Early Reception Of Edgar Allan Poe In Victorian England, Brian Robert Wall Jun 2008

The Man In The Transatlantic Crowd: The Early Reception Of Edgar Allan Poe In Victorian England, Brian Robert Wall

Theses and Dissertations

An important anomaly in transatlantic criticism is the contrast between transatlantic theory and the applied criticism of literature through a transatlantic lens. While most transatlantic scholars assert the value of individual strands of thought throughout the globe and stress the importance of overcoming national hegemonic barriers in literature, applied criticism generally favors an older model that privileges British literary thought in the nineteenth century. I claim that both British and American writers can influence each other, and that mutations in thought can travel both ways across the Atlantic. To argue this claim, I begin by analyzing the influence of Blackwood's …


Time-Frequency Analysis Of Terahertz Radar Signals For Rapit Heart And Breath Rate Detection, Melody L. Massar Jun 2008

Time-Frequency Analysis Of Terahertz Radar Signals For Rapit Heart And Breath Rate Detection, Melody L. Massar

Theses and Dissertations

We develop new time-frequency analytic techniques which facilitate the rapid detection of a person's heart and breath rates from the Doppler shift the movement of their body induces in a terahertz radar signal. In particular, the Doppler shift in the continuous radar return is proportional to the velocity of the person's body. Thus, a time-frequency analysis of the radar return will yield a velocity signal. This signal, in turn, may undergo a second time-frequency analysis to yield any periodic components of the velocity signal, which are often related to the heart and breath rates of the individual. One straightforward means …


Performance Analysis Of Effective Range And Orientation Of Uhf Passive Rfid, Paul N. Roque Jun 2008

Performance Analysis Of Effective Range And Orientation Of Uhf Passive Rfid, Paul N. Roque

Theses and Dissertations

The purpose of this research is to characterize the performance of UHF passive RFID tags. Factors of importance are the impact of tag orientation and distance from the RFID reader. Within this study, a comprehensive literature review of RFID technology is presented as well as the methodology used for the research. Furthermore, an analysis of RFID tag experiments is discussed and the results reviewed. To accomplish this task, two main objectives have been established as goals for the study. The first objective is to determine an optimum tag orientation within the RFID reader’s normal read range. Once the optimum tag …


Ranking Search Results For Translated Content, Brian Edwin Hawkins May 2008

Ranking Search Results For Translated Content, Brian Edwin Hawkins

Theses and Dissertations

Translation Memory (TM) is a valuable tool that helps human translators in doing their job. TM consists of a collection of previously translated texts, called translation units, that may prove useful in the translation of new text. The main problem faced by translators who wish to take advantage of TM is that, although search tools do exist, there is no standardized way of effectively ranking search results. This thesis proposes a method for ranking TM search results together with a novel approach to efficiently finding common substrings that is used in the ranking process.


The Relationship Between Psychological Well-Being And Work Productivity: Validation Of The Oq Productivity Index, Vinessa Kaye Trotter May 2008

The Relationship Between Psychological Well-Being And Work Productivity: Validation Of The Oq Productivity Index, Vinessa Kaye Trotter

Theses and Dissertations

Managed Mental Health Care (MMHC) began blanketing the United States when cost of care rose exponentially. MMHC is one avenue many employers and insurance companies have chosen to provide employees with mental health treatment at controlled costs. However, not all employers view supplying their employees with mental health treatment beneficial, as they do not know mental health problems can significantly decrease work productivity. Brown and Jones (2005) used the Social Role Scale (SR) of the Severe Outcome Questionnaire (SOQ) to estimate work productivity in employees under the assumption that the scale measures work productivity. The purpose of this study was …


Perceptions Of General Education Teachers In Inclusive Settings, Katherine A. Conner May 2008

Perceptions Of General Education Teachers In Inclusive Settings, Katherine A. Conner

Theses and Dissertations

The purpose of this study was to examine the collaborative relationships between general education teachers and their colleagues in school psychology and special education when in inclusive environments and to determine the effects of their perceptions on student-teacher relationships. Specifically, the researcher hypothesized that teachers with more knowledge and positive perceptions of their colleagues would have more positive relationships with the ASD included children in their classrooms. Consequently, those who have had children with ASD in their classes in the past were expected to be more knowledgeable about the field of school psychology and the special education department. Thirdly, training …


An Investigation On Emergent Literacy Skills Of Preschool Children With Disabilities, Susan Biesz May 2008

An Investigation On Emergent Literacy Skills Of Preschool Children With Disabilities, Susan Biesz

Theses and Dissertations

The purpose of this study was to investigate the relationship between home literacy activities provided by parents and their children's emergent literacy skills. A total of 11 parents and their preschool children with disabilities participated in the study. A survey was provided to obtain parents' strategies used during parent-child joint reading activities in the home. The Emergent Literacy Skills Assessment was administered to participating children to evaluate their emergent literacy skills in six areas including identifying primary shapes and colors, letter identification, reciting the alphabet, identifying the parts of a book and identifying their own name in print. The surveyed …


Effect Of Hemoglobin-Based Oxygen Carriers On Arterial Pressure And Vasoactivity In The Rat Mesentery, Michael Kim May 2008

Effect Of Hemoglobin-Based Oxygen Carriers On Arterial Pressure And Vasoactivity In The Rat Mesentery, Michael Kim

Theses and Dissertations

Hemoglobin-based oxygen carriers provide a promising future as an alternative to human blood transfusions. Hemoglobin-based oxygen carriers, HBOCs, provide a lowcost, easy to maintain, and safe solution. They require no refrigeration and are universally compatible, and the required transfusion volume is less than that of a normal transfusion. HBOCs have been known to have adverse side effects such as renal toxicity, gastrointestinal dismotility, and hypertension. Many of these problems stem from the lack of a membrane, which protects the hemoglobin from dissociating and extravasating into the blood vessel wall. Extracellular hemoglobin, like that found in HBOCs, has a greater affinity …


Unamunian Microcosms: Four Short Stories In A New Translation Into English, Emily A. Davis May 2008

Unamunian Microcosms: Four Short Stories In A New Translation Into English, Emily A. Davis

Theses and Dissertations

Spanish writer Miguel de Unamuno's short fiction is neglected in both the academic and nonacademic communities, and it is especially underrepresented in English-language translation. This thesis constitutes a comprehensive approach to four short stories: "El que se enterró," "La manchita de la uña," "Mecanópolis," and "Batracófilos y batracófobos." A detailed exploration of thematic resonances among them, and between these and other works by Unamuno, precedes side-by-side translations of all four texts, of which only "Mecanópolis" has been previously published in English translation.


An Investigation Of Paraoxonase-1 Activities In The Serum Of Southerners As Related To Gender And Race, Kimberly Ann Davis May 2008

An Investigation Of Paraoxonase-1 Activities In The Serum Of Southerners As Related To Gender And Race, Kimberly Ann Davis

Theses and Dissertations

Paraoxonase-1 (PON1) has an anti-oxidative function in preventing the formation of oxidized lipoproteins (LDL and HDL) and hydrolyzing the active metabolites of some organophosphate insecticides (e.g., paraoxon and diazoxon) and other non-physiological substrates. PON1Q192R affects PON1 hydrolytic activity and its protective role against oxidative stress, thereby influencing susceptibility to cardiovascular disease among individuals. The objectives of this study were to determine the effect of race, gender, and age on PON1 activities and PON1192 genotypes in Caucasian and African American Southerners. Serum samples from 200 individuals (equally distributed race and gender classes, ages 25-55) were assayed spectrophotometrically for paraoxon and diazoxon …


Causes Of Whitening Of Ivy Geraniums (Pelargonium Peltatum), Ritu Dhir May 2008

Causes Of Whitening Of Ivy Geraniums (Pelargonium Peltatum), Ritu Dhir

Theses and Dissertations

The development of whitening of the youngest leaves of actively growing ivy geranium (Pelargonium peltatum L.) has been observed as the season changes from late spring to summer. This study was conducted to determine the specific environmental causes of whitening, if micronutrients deficiencies cause similar whitening, whether low night temperatures can reverse whitening, and whether salicylic acid affects growth and whitening in ivy geraniums. Two cultivars, ‘Beach’ and ‘Butterfly’, with different susceptibility to whitening were chosen for this study. Elevated air temperature, but not elevated root-zone temperature, was found to be the environmental cause of whitening in ivy geranium. Elevated …


Oxidation Of Lipids In A Supercriticalluid Medium, Darrell Lynn Sparks May 2008

Oxidation Of Lipids In A Supercriticalluid Medium, Darrell Lynn Sparks

Theses and Dissertations

Efficient use of renewable feedstocks for production of chemicals and intermediates is necessary to reduce dependence upon petroleum. A large portion of these chemicals could be produced using lipids from renewable feedstocks such as vegetable oils, animal fats, and bacterial lipids. For example, many lipid sources contain unsaturated fatty acids, which can be oxidized to form a variety of products such as diacids and epoxides. These chemicals are used to formulate herbicides, detergents, plasticizers, lubricants, paints, and other useful products. One of the most common unsaturated fatty acids is oleic acid, and it can be oxidized with an ozone/oxygen mixture …


A Comparison Of Academic Achievement And Retention Of Community College Students In College Algebra After Completion Of Traditional Or Technology-Based Instruction, Jennifer Ferrill Seal May 2008

A Comparison Of Academic Achievement And Retention Of Community College Students In College Algebra After Completion Of Traditional Or Technology-Based Instruction, Jennifer Ferrill Seal

Theses and Dissertations

This study was designed to compare the success rates in College Algebra between two groups of students attending a Mississippi community college. Eighty students enrolled in a College Algebra course were taught using traditional instructional techniques, and 70 students received technology-enhanced instruction. This study considered the effects of grade scores on a mathematics-achievement pretest and posttest, student attitudes toward mathematics, time-on-task while using technology during mathematics study, mathematics subscores on the American College Test, and withdrawal rates. Data collected for this study were derived from the official transcripts of students enrolled in spring 2007 College Algebra classes of a Mississippi …


Effect Of Phosphorous Poisoning On Catalytic Cracking Of Lipids For Green Diesel Production, Stephen Thomas Dufreche May 2008

Effect Of Phosphorous Poisoning On Catalytic Cracking Of Lipids For Green Diesel Production, Stephen Thomas Dufreche

Theses and Dissertations

Biodiesel is one of the most widely used biofuels in the world, due in part to its simplicity of production, compatibility with existing engines, and reduction of green house gas emissions. However, technical difficulties with biodiesel include: (1) the need of highly refined oil for ASTM compliance, (2) incompatibility with the petroleum-diesel pipeline distribution system, and (3) a relatively small inventory of expensive feedstocks. Issues (1) and (2) could be overcome by the production of biofuels using chemical processes associated with petroleum refining. Catalytic lipid cracking could result in green diesel, a fuel chemically similar to conventional diesel but derived …


Deception In Super Bowl Advertisements: An Analysis Of Deceptive Story Lines, Christopher R. Near May 2008

Deception In Super Bowl Advertisements: An Analysis Of Deceptive Story Lines, Christopher R. Near

Theses and Dissertations

Many ethical studies have focused on advertising; however, they have yet to focus specifically on Super Bowl advertisements. This thesis examines the ethical issue of portraying deceptive acts within the storylines of Super Bowl advertisements from 1988-2008. Results indicate that 196 of the 2,172 advertisements studied, contain deceptive storylines. Most often the advertisements depicted white males, ages 30-64, using deception. Also, deception was usually done out of self interest at the expense of others. The deception often led to negative social, material, and emotional consequences for the person being deceived, with mostly positive outcomes being shown for the person doing …


The Investigation Of Innate Immune System Memory In Rag1-/- Mutant Zebrafish, Claudia M. Hohn May 2008

The Investigation Of Innate Immune System Memory In Rag1-/- Mutant Zebrafish, Claudia M. Hohn

Theses and Dissertations

The innate immune system in vertebrates is considered to lack specific memory. To investigate innate immune system based immunological protection mediated by cells that are not part of the acquired immune system the Tübingen recombination activation gene1 (rag1)t26683 mutant (MT) zebrafish was chosen. Molecular analysis demonstrated MT zebrafish kidney cells expressed Non-specific Cytotoxic cell receptor protein-1 (NCCRP-1) and Natural Killer cell (NK) lysin but lacked T cell receptor (TCR) and immunoglobulin (Ig) VH1, VH2, VH3 and VH4 expression. Differential counts of peripheral blood leukocytes indicated that MT fish had decreased lymphocyte populations (34.7%) compared to rag1+/+ wild-type (WT) fish (70.5%), …


The Study Of The Life Cycle Of Bolbophorus Damnificus And Its Pathology In The Channel Catfish (Ictalurus Punctatus), Marlena Catherine Yost May 2008

The Study Of The Life Cycle Of Bolbophorus Damnificus And Its Pathology In The Channel Catfish (Ictalurus Punctatus), Marlena Catherine Yost

Theses and Dissertations

In channel catfish (Ictalurus punctatus), the digenetic trematode B. damnificus, causes morality and reduced growth. Previous research has documented the hosts for B. damnificus are: the American white pelican (Pelecanus erythrorhynchos), the snail (Planorbella trivolvis) and the channel catfish. The goals of this research were to confirm the life cycle of B. damnificus in a single life cycle study fulfilling Koch’s postulates; determine if the snail, Biomphalaria havanensis-obstructa, could serve a host for B. damnificus, and examine the pathology of B. damnificus in channel catfish. American white pelicans (AWP) were artificially infected with B. damnificus metacercariae which matured to the …


Product Formulation And Sensory Acceptance Of Three Soy Concept Foods Utilizing Three Different Soy Derivatives, Aditya Samala May 2008

Product Formulation And Sensory Acceptance Of Three Soy Concept Foods Utilizing Three Different Soy Derivatives, Aditya Samala

Theses and Dissertations

The objective of this study was to develop soy concept foods with potential marketability in the food industry for health conscious consumers. Fourteen commercial soy protein isolate samples were obtained from various processors. The flavor profiles of the soy protein isolates were evaluated by five expert panelists. The three soy protein isolate samples with the most acceptable flavor profiles were utilized for further analysis and the development of soy concept foods including cranberry nut soy pudding, two bean soy dip and a soy based meal replacer. Based on consumer acceptability studies, it appears that two bean soy dip may have …


Productivity Of Raised Seedbeds For Soybean [Glycine Max. (L.) Merr.] Production On Clayey Soils Of The Mississippi Delta, James Brewer Blessitt May 2008

Productivity Of Raised Seedbeds For Soybean [Glycine Max. (L.) Merr.] Production On Clayey Soils Of The Mississippi Delta, James Brewer Blessitt

Theses and Dissertations

Early planting of indeterminate soybean varieties has increased yield potential in Mississippi. Narrow row patterns have effectively alleviated canopy closure problems and maximized light interception. Stresses related to inadequate drainage persist. Field experiments were conducted in 2006 and 2007 to evaluate productivity and profitability of bedding systems to minimize stresses related to poor drainage. Soybean planted on a conventional 100 cm bedding system provided a higher degree of growth and development and higher seed yields than flat plantings when border irrigated both years. Raised 100 cm-wide beds offered 23 to 45% greater net returns above input costs relative to flat …


Reading Nature, Reading Eve: Reading Human Nature In John Milton's Paradise Lost, Maria Lynn Dunser May 2008

Reading Nature, Reading Eve: Reading Human Nature In John Milton's Paradise Lost, Maria Lynn Dunser

Theses and Dissertations

Renaissance England was a period of tremendous flux; ideas about science, gender and knowledge or how we come to knowledge come under examination. These areas of flux intersect with the text examined here in their relationship to the key concept of nature. In John Milton’s, Paradise Lost, nature appears in various forms over sixty times. By first examining the word nature in relation to the ideas in flux during the period and next examining Milton’s use of the word in the epic, an overlooked yet significant aspect of his epic emerges. Milton uses the mutability of nature to further “justify …


Salmonella Enterica Serovar Enteritidis Requires The Type Three Secretion System-1/2 To Invade/Survive In Chicken Oviduct Epithelial Cells And To Modulate Innate Immune Responses, Shuhui Li May 2008

Salmonella Enterica Serovar Enteritidis Requires The Type Three Secretion System-1/2 To Invade/Survive In Chicken Oviduct Epithelial Cells And To Modulate Innate Immune Responses, Shuhui Li

Theses and Dissertations

Contaminated poultry and egg products are major sources of Salmonella enterica serovar Enteritidis (S. enteritidis, SE) infections in humans. Colonization of SE in chicken reproductive tract results in the production of contaminated commercial shell-eggs and fertilized hatchery eggs. The complex pathogen-host interactions during SE colonization of chicken reproductive tract are largely unknown. This study was aimed at determining the pathogenic roles of the type three secretion systems (TTSS-1 and TTSS-2) in SE infection of chicken oviduct epithelial cells (COEC). A series of SE strains carrying mutations in the genes encoding structure or effector proteins of TTSS-1 and TTSS-2 were constructed. …


Nmr Structure Calculation Of The Halophilic Binary Hvdhfr1:Folate Complex, Arezue Fatemeh Bekrai Boroujerdi May 2008

Nmr Structure Calculation Of The Halophilic Binary Hvdhfr1:Folate Complex, Arezue Fatemeh Bekrai Boroujerdi

Theses and Dissertations

Dihydrofolate reductase is an enzyme that catalyzes the reaction of dihydrofolate to tetrahydrofolate with nicotinamide adenine dinucleotide phosphate. Haloferax volcanii is a “salt-loving” microorganism found in the Dead Sea. Such microorganisms have adapted to their extreme environments and now require extremely high salt concentrations to survive. The study of dihydrofolate reductase from Haloferax volcanii with the substrate folate bound, which is the focus of the work presented in this dissertation, offers further understanding of this adaptation. The effect that high salt concentration has on this enzyme is not fully understood; however, this dissertation includes the investigation of the structure of …


Creature Comfort: Anthropomorphism, Sexuality And Revitalization In The Furry Fandom, Matt Morgan May 2008

Creature Comfort: Anthropomorphism, Sexuality And Revitalization In The Furry Fandom, Matt Morgan

Theses and Dissertations

This paper attempts to describe and analyze the culture of the furry fandom within the context of anthropologist Anthony Wallace’s model of cultural revitalization movements. This paper argues that the furry fandom represents a modern, subcultural revitalization movement in which values, identity, and sexuality are transformed through the mechanism of zoomorphic symbolism. Over one-hundred interviewees were formally and/or informally interviewed during the course of this study. Interviewees generally expressed a deep affinity for childhood and a negative perspective on adolescent culture. This paper argues that the transformation of identity present in the furry fandom is based on a synthesis of …


Development Of A Heterogeneously Catalyzed Chemical Process To Produce Biodiesel, Alok Kumar Singh May 2008

Development Of A Heterogeneously Catalyzed Chemical Process To Produce Biodiesel, Alok Kumar Singh

Theses and Dissertations

It is well known fact that energy is a big issue for this world and substantial amount of research is going on worldwide for alternative fuels that are environmentally friendly, especially because of the fact that crude petroleum reserves are dwindling. Also, research on alternative fuels is essential for increased energy security. Biodiesel is a renewable, biodegradable, and nontoxic fuel. At present, when homogeneous catalysts are used, biodiesel is primarily produced in batch reactors in which the required energy is provided by heating accompanied by mechanical mixing. Alternatively, ultrasonic processing could be an effective way to attain required mixing while …


Effects Of Body Mass, Physiographic Region, And Environmental Cues On Reproductive Timing In Deer, Michael Paul Dye May 2008

Effects Of Body Mass, Physiographic Region, And Environmental Cues On Reproductive Timing In Deer, Michael Paul Dye

Theses and Dissertations

The reproductive timing and success of white-tailed deer are important to managers. I evaluated the reproductive variability of pen-raised deer and wild populations within Mississippi and investigated effects of age, body condition and moon phase on conception dates. I also examined the reproductive potential of doe fawns from 3 regions of Mississippi. Individual conception dates varied more than expected and were not related to moon phase. Age affected individual conception date, although the effect may have been confounded by estimated gestation length. Population level variation was less than reported and could not be explained by moon phase or late-winter body …