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Cerium Oxide Nanoparticles Act As A Unique Catalyst And Scavenge Nitric Oxide And Peroxynitrite And Decrease Rns In Vitro And In Vivo, Janet Dowding Jan 2012

Cerium Oxide Nanoparticles Act As A Unique Catalyst And Scavenge Nitric Oxide And Peroxynitrite And Decrease Rns In Vitro And In Vivo, Janet Dowding

Electronic Theses and Dissertations

Cerium oxide nanoparticles (CeO2 NPs)(nanoceria) have been shown to possess a substantial oxygen storage capacity via the interchangeable surface reduction and oxidation of cerium atoms, cycling between the Ce4+ and Ce3+ redox states. Reduction of Ce4+ to Ce3+ causes oxygen vacancies or defects on the surface of the crystalline lattice structure of the particles, generating a cage for redox reactions to occur. The study of the chemical and biological properties of CeO2 NPs has expanded recently, and the methods used to synthesize these materials are also quite diverse. This has led to a plethora of studies describing various preparations of …

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A Study Of The Degradative Capabilities Of The Bimetallic System: Mg(Pd/C) As Applied In The Destruction Of Decafluoropentane, An Environmental Contaminant, Douglas Tomlin Jan 2012

A Study Of The Degradative Capabilities Of The Bimetallic System: Mg(Pd/C) As Applied In The Destruction Of Decafluoropentane, An Environmental Contaminant, Douglas Tomlin

Electronic Theses and Dissertations

Pollution from hydrofluorocarbons (HFC) poses a serious challenge to the environmental community. Released from industrial operations, they have contaminated both the atmosphere and groundwater and are considered persistent in both media.1 For over the past 20 years, the practice of synthesizing hydrofluorocarbons as alternatives to chlorofluorocarbons (CFC) has been conducted in an effort to reverse the effects of stratospheric ozone layer depletion. 2,3 However, in doing so these new fluorinated compounds exhibited an unexpected property as a potent global warming greenhouse gas (GHG) with radiative forcing potentials in the range of 100 to 10,000 equivalents greater than carbon dioxide.4 Conversely, …

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Florida's Cattle Culture: Ethos And Enterprise In The Sunshine State, Corinne E. Zellner Jan 2012

Florida's Cattle Culture: Ethos And Enterprise In The Sunshine State, Corinne E. Zellner

Electronic Theses and Dissertations

Cattle ranching has been of major significance to Florida since the 16th century; however, few are aware of the historic, ecologic, economic and cultural influence of this industry. This study investigates the origins and impacts of the traditional customs and practices of Florida’s cattle ranchers, who preserve and reinvent this rich heritage today. Ranchers live closely with the land and their animals and, due to the often-uncertain and cyclical nature of the business, must possess resourcefulness and initiative to prosper. The image of the stoic cowboy has long been associated with the American West, yet before longhorn cattle ever crossed …

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Conservation And Population Biology: Genetics, Demography And Habitat Requirements Of The Atlantic Coast Beach Mice, Haakon Myklevoll Kalkvik Jan 2012

Conservation And Population Biology: Genetics, Demography And Habitat Requirements Of The Atlantic Coast Beach Mice, Haakon Myklevoll Kalkvik

Electronic Theses and Dissertations

The conservation biology field seeks to preserve biodiversity and the processes shaping that variation. Conservation biology is intimately tied to evolutionary research, in order to identify evolutionary distinct lineages that may be in danger of disappearing. Interestingly, patterns and processes of lineage divergence and persistence change with respect to spatial and temporal scale. I seek to evaluate biodiversity, the factors that have shaped this heterogeneity, and how this variability persists. To accomplish this I used a phylogeographic approach as well as niche and population modeling on the Peromyscus maniculatus species group found widely distributed in North America. My emphasis was …

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When The Alligator Called To Elijah: A Handcrafted Exploration Of The Digital Moving Image, Katherine Shults Jan 2012

When The Alligator Called To Elijah: A Handcrafted Exploration Of The Digital Moving Image, Katherine Shults

Electronic Theses and Dissertations

When the Alligator Called to Elijah is a feature-length video conceptualized and constructed by Kate Shults in partial fulfillment of the requirements for earning a Master of Fine Arts in Entrepreneurial Digital Cinema from the University of Central Florida. The video is the result of an evolving exploration of the aesthetic capabilities of the digital image using Flip Video cameras, found footage and Final Cut Pro. Though originating as an experiment, When the Alligator Called to Elijah became a creation of motion collage with very specific production parameters. This thesis is a record of this video’s progression, from development to …

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Manipulation Of Host Signal Transduction Pathways And Cytoskeleton Functions By Invasive Bacterium Listeria Monocytogenes And Chlamydia Trachomatis, Shahanawaz Jiwani Jan 2012

Manipulation Of Host Signal Transduction Pathways And Cytoskeleton Functions By Invasive Bacterium Listeria Monocytogenes And Chlamydia Trachomatis, Shahanawaz Jiwani

Electronic Theses and Dissertations

Infectious disease remains one of the leading causes of morbidity and mortality worldwide. Many bacteria that cause disease have the capacity to enter into eukaryotic cells such as epithelial cells and tissue macrophages. Gaining access into the intracellular environment is one of the most critical steps in their survival and/or in pathogenesis. The entry mechanisms employed by these organisms vary considerably, but most mechanisms involve sabotaging and manipulating host cell functions. Invasion of epithelial cells involves triggering host signal transduction mechanisms to induce cytoskeleton rearrangement, thereby facilitating bacterial uptake. My work focuses on understanding the molecular mechanisms employed by bacterial …

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Beyond Building A Tree: Phylogeny Of Pitvipers And Exploration Of Evolutionary Patterns, Allyson Fenwick Jan 2012

Beyond Building A Tree: Phylogeny Of Pitvipers And Exploration Of Evolutionary Patterns, Allyson Fenwick

Electronic Theses and Dissertations

As generic and higher-scale evolutionary relationships are increasingly well understood, systematists move research in two directions: 1) understanding specieslevel relationships with dense taxon sampling, and 2) evaluating evolutionary patterns using phylogeny. In this study I address both foci of systematic research using pitvipers, subfamily Crotalinae. For direction one, I evaluate the relationships of 96% of pitvipers by combining independent sets of molecular and phenotypic data. I find the inclusion of species with low numbers of informative characters (i.e. less than 100) negatively impacts resolution of the phylogeny, and the addition of independent datasets has no effect on or a small …

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Assessment Of Molecular Interactions Via Magnetic Relaxation: A Quest For Inhibitors Of The Anthrax Toxin, Oscar Santiesteban Jan 2012

Assessment Of Molecular Interactions Via Magnetic Relaxation: A Quest For Inhibitors Of The Anthrax Toxin, Oscar Santiesteban

Electronic Theses and Dissertations

Anthrax is severe disease caused by the gram-positive Bacillus anthracis that can affect humans with deadly consequences. The disease propagates via the release of bacterial spores that can be naturally found in animals or can be weaponized and intentionally released into the atmosphere in a terrorist attack. Once inhaled, the spores become activated and the anthrax bacterium starts to reproduce and damage healthy macrophages by the release of the anthrax toxin. The anthrax toxin is composed of three virulent factors: (i) anthrax protective antigen (APA), (ii) anthrax lethal factor (ALF), and (iii) anthrax edema factor (AEF) that work in harmony …

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Trade Secrets, Rachel Kolman Jan 2012

Trade Secrets, Rachel Kolman

Electronic Theses and Dissertations

Trade Secrets is a collection of fourteen short stories that explores characters falling in and out of relationships and coping in unusual and even comedic ways. These characters are often obsessive and do not trust one another. They think life is funny, and discover that love is funny, and yeah, sex can be funny too. They don’t feel the right things when they’re supposed to. They find love, and lose love. They find hope, and lose hope. They escape sometimes, but more often are unable to go anywhere. These stories consider relationships through the disconnection between reality and fantasy, exploring …

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Somatechnologies Of Body Size Modification: Posthuman Embodiment And Discourses Of Health, Meghan Griffin Jan 2012

Somatechnologies Of Body Size Modification: Posthuman Embodiment And Discourses Of Health, Meghan Griffin

Electronic Theses and Dissertations

This project focuses on persistent gaps in philosophies of the body: the enduring mindbody divide in accounts of phenomenology, the unfulfilled promises of representing and inhabiting the body in online and virtual spaces, and the difference between health as quantified in medical discourse versus health as lived experience. These tensions are brought to light through the electronic food journal genre where the difficulty in capturing pre-noetic, outsideconsciousness aspects of experience and embodied health are thrown into relief against circulating cultural discourses surrounding health, body size, self-surveillance, and self-care. The electronic food journal genre serves as a space for users to …

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Hidden Variable, Heather Harms Jan 2012

Hidden Variable, Heather Harms

Electronic Theses and Dissertations

Hidden Variable is a novel that blends linear storytelling with the novel-in-stories form. It poses questions about the nature of identity as well as the feasibility of personal power, particularly with respect to disorders of the mind. Darla Pierson, the novel’s protagonist, is a woman in crisis. She is steeped in selfloathing brought on by the knowledge that she has, in effect, become her dead father—a genius with an epic libido, habitually using and discarding people. Her father has another habit that Darla doesn’t share: being struck by lightning. After the second strike kills him, Darla makes a conscious attempt …

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A Discussion Of Robert Schumann's Compositional Process In The Song Cycle Frauenliebe Und -Leben, Brittany Monique Denham Jan 2012

A Discussion Of Robert Schumann's Compositional Process In The Song Cycle Frauenliebe Und -Leben, Brittany Monique Denham

Electronic Theses and Dissertations

Robert Schumann’s compositional work during 1840 stands out as an unexpected turn of events. With relatively no background composing songs, Schumann suddenly produced a plethora of widely successful and monetarily lucrative songs all within one year. Perhaps most fascinating was the amount of detail Schumann placed into each song. This detail can be seen in the sketches which include the composer’s handwritten edits in both the piano and vocal scores. With a focus on Schumann’s song cycle, Frauenliebe und -leben the qualities of Schumann’s songs and the compositional process used to create the songs’ final versions are examined through this …

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Who Do I Play: Appraising The Impact Of Teacher-In-Role With Kindergartners In An Esol Classroom, Kathryn Perkins Brantley Jan 2012

Who Do I Play: Appraising The Impact Of Teacher-In-Role With Kindergartners In An Esol Classroom, Kathryn Perkins Brantley

Electronic Theses and Dissertations

Educators employing process drama, a non-presentational dramatic form, establish memorable classroom environments where students co-author their learning with teachers. Process drama facilitators often use the dramatic structure of teacher-in-role to guide and support the students. An instructor heightens tension, introduces new ideas, and encourages participation by engaging alongside students as a character. An educator employing process drama needs to determine the appropriate type of role to impact the development of a classroom drama; while negotiating tension felt between desires for student-led discovery and the necessity of meeting curriculum benchmarks. Academic studies establish process drama as a tool to aid English …

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The Machine, The Victim, And The Third Thing: Navigating The Gender Spectrum In Margaret Atwood's Oryx And Crake And The Year Of The Flood, Lindsay Mccoy Anderson Jan 2012

The Machine, The Victim, And The Third Thing: Navigating The Gender Spectrum In Margaret Atwood's Oryx And Crake And The Year Of The Flood, Lindsay Mccoy Anderson

Electronic Theses and Dissertations

This thesis explores Atwood's depiction of gender in Oryx and Crake and The Year of the Flood. In an interview from 1972, Margaret Atwood spoke on survival: "People see two alternatives. You can be part of the machine or you can be something that gets run over by it. And I think there has to be a third thing." I assert that Atwood depicts this "third thing" through her characters who navigate between the binaries of "masculine" and "feminine" in a third realm of gender. As the female characters—regardless of their passive or aggressive behavior—engage in a quest for agency, …

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Harvesting The Seeds Of Early American Human And Nonhuman Animal Relationships In William Bartram's Travels, The Travel Diary Of Elizabeth House Trist, And Sarah Trimmer's Fabulous Histories, Leslie Blake Vives Jan 2012

Harvesting The Seeds Of Early American Human And Nonhuman Animal Relationships In William Bartram's Travels, The Travel Diary Of Elizabeth House Trist, And Sarah Trimmer's Fabulous Histories, Leslie Blake Vives

Electronic Theses and Dissertations

This thesis uses ecofeminist and human-animal studies lenses to explore human animal and nonhuman animal relations in early America. Most ecocritical studies of American literature begin with nineteenth-century writers. This project, however, suggests that drawing on ecofeminist theories with a human-animal studies approach sheds light on eighteenth-century texts as well. Early American naturalist travel writing offers a site replete with human and nonhuman encounters. Specifically, naturalist William Bartram's travel journal features interactions with animals in the southern colonial American frontier. Amateur naturalist Elizabeth House Trist's travel diary includes interactions with frontier and domestic animals. Sarah Trimmer's Fabulous Histories, a conduct …

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The Boys' Republic, Jonas Mueller Jan 2012

The Boys' Republic, Jonas Mueller

Electronic Theses and Dissertations

The young men in The Boys’ Republic live in a world that is continually falling apart. Their houses collapse into sinkholes, forest fires carve out chunks of their towns, plague spreads through their communes, the money runs out on the construction project where they work. This decay mirrors their own collapsing identities, as they are forced to question their mastery of nature, their nostalgia for their youth, their relationships with others, and the value of masculinity itself. Drawing on the work of writers like Dennis Cooper, Flannery O’Connor, and Benjamin Percy, The Boys’ Republic depicts men in the midst of …

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Life History Response To Infection And The Potential For Dishonest Signals In The Ground Cricket, Allonemobius Socius, Emily Copeland Jan 2012

Life History Response To Infection And The Potential For Dishonest Signals In The Ground Cricket, Allonemobius Socius, Emily Copeland

Electronic Theses and Dissertations

In order to maximize fitness, individuals must partition their limited resources among competing physiological processes, creating negative statistical associations between processes known as “life-history trade-offs”. Evidence indicates that individuals tend to decrease their reproductive investment when confronted with a significant immunological challenge in order to increase investment in immune defense. This trade-off is often accompanied by a significant decrease in the sexual signal, which provides an honest signal of the male’s infection status to potential mates. However, if individual residual reproductive value is low, they may instead increase their reproductive investment to maximize reproductive success before the end of their …

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Turtle Cam: Live Multimedia Interaction For Engaging Potential Visitor Population To Canaveral National Seashore, Brian Alfred Tortorelli Jan 2012

Turtle Cam: Live Multimedia Interaction For Engaging Potential Visitor Population To Canaveral National Seashore, Brian Alfred Tortorelli

Electronic Theses and Dissertations

This project expands the outreach of the Canaveral National Seashore to its visitors, potential visitors, and virtual visitors through its goals in conservancy and preservation of its natural resources. This paper is involved with the current iteration of a series of digital media projects, the Sea Turtle Nest Camera, also known as, Turtle Cam. It details how and why this project was designed to be an ongoing initiative to assist in those goals.

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Methods And Products For Biasing Cellular Development, Kiminobu Sugaya, Angel Alvarez, Amelia Marutle Dec 2011

Methods And Products For Biasing Cellular Development, Kiminobu Sugaya, Angel Alvarez, Amelia Marutle

UCF Patents

Proper cellular functionand development depends on intrinsic signals and extracellular environmental cues. The interplay of these environmental influences and intracellular dynamics determine cellular ectivity including migration, differentiation and the manner in whihc it interacts with surrounding cells. An object of this invention invloves a way to mofigy cellular activity by gene insertion. Another object of this invention is the application of specially modified cells for therapeutic and research applications. Through gene insertion by means of a delivery system such as transfection we can create specialized cell types from various stem cells including adults these cells can be either be used …

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Rand Takes On The Constitution An Objectivist Perspective Of The United States Constitution, Farin C. Robinson Dec 2011

Rand Takes On The Constitution An Objectivist Perspective Of The United States Constitution, Farin C. Robinson

HIM 1990-2015

Author and philosopher Ayn Rand has gathered a cult like following thanks to her bestselling novels We the Living, Anthem, The Fountainhead and Atlas Shrugged. Through Rand's fictional writings she illustrates the principles of her philosophy objectivism. Objectivism employs five principles; objective reality, reason, self -interest, capitalism and individualism as the truths that govern the philosophy. Objectivists believe that their self-reliant philosophy holds the key to all life's answers. This thesis examines the following question: what would the founder of objectivism Ayn Rand think about the U.S. Constitution? Sadly Ayn Rand passed away in 1982 and never expressed her full …

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Two Conceptions Of The Mind, Benjamin J. Aguda Dec 2011

Two Conceptions Of The Mind, Benjamin J. Aguda

HIM 1990-2015

Since the cognitive revolution during the last century the mind has been conceived of as being computer-like. Like a computer, the brain was assumed to be a physical structure (hardware) upon which a computational mind (software) was built. The mind was seen as a collection of independent programs which each have their own specific tasks, or modules. These modules took sensory input "data" and transduced it into language-like representations which were used in mental computations. Recently, a new conception of the mind has developed, grounded cognition. According to this model, sensory stimulus is saved in the original format in which …

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Using Gis To Determine The Influence Of Wetlands On Cayuga Iroquois Settlement Location Strategies, David J. Birnbaum Dec 2011

Using Gis To Determine The Influence Of Wetlands On Cayuga Iroquois Settlement Location Strategies, David J. Birnbaum

HIM 1990-2015

The archaeological record of the Iroquois supports that settlements were regularly relocated during the protohistoric period (1500-1650 A.D.). With the use of Geographic Information Systems (GIS) computer software, archaeologists may analyze variables potentially resulting in or influencing the movement of settlements. Through the use of spatial analysis, I argue that Cayuga Iroquois settlement locations were influenced by the environmental characteristics of their surrounding landscape. Specifically, wetlands are believed to have influenced settlement location choices in central New York state. This study examines the spatial relationships between wetland habitats and protohistoric period Cayuga Iroquois settlements where swidden maize agriculture comprised most …

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The Role Of Rain In Postclassic Maya Religious Belief, Lillie U. Dao Dec 2011

The Role Of Rain In Postclassic Maya Religious Belief, Lillie U. Dao

HIM 1990-2015

The concept of religion and its practice within ancient societies across the world is a subject that has fascinated scientists for centuries. The pre-Columbian Maya codices, first-hand Postclassic hieroglyphic documents, have been examined by hundreds of anthropologists. Analysis of these books has led scientist to hypothesize that these manuscripts were vitally connected to the Maya Postclassic belief system. Understanding the central focus of a civilization's religion and how, why and under what circumstances the religion is practiced truly distinguishes them as a culture. The intent of this thesis is to examine the role of rain in Maya Postclassic religious belief. …

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Attitude Change Regarding Animal Abuse In Adults The Effect Of Education And Visual Aids, Ashley Carter Dec 2011

Attitude Change Regarding Animal Abuse In Adults The Effect Of Education And Visual Aids, Ashley Carter

HIM 1990-2015

Additionally, images of animals alone immediately increased attitudes regarding treatment of animals. This difference does not appear to increase further over time. Images of animals alone appear to aid in immediately altering individuals' sense of continuity with animals. The attitude that animals and humans share some commonalities and exist in relation to each other could assist in adoption campaigns by allowing the potential owners to place themselves with the animals they are adopting. However, over time information combined with images of humans and animals significantly increase this sense of commonality. The applications for the results depend on what type of …

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What Is The Importance Of Age At Menarche On Adult Height Relative To Other Known Factors?, Pamela M. Kacerosky Dec 2011

What Is The Importance Of Age At Menarche On Adult Height Relative To Other Known Factors?, Pamela M. Kacerosky

HIM 1990-2015

Objectives: To analyze the association between age at menarche, as a measure of sexual maturation, and adult height from ten published studies. Methods: Compared published measurements of age at menarche, adult height, and within-sample relationships observed in ten studies, for women from several societies and socioeconomic backgrounds, living in the 20th century, Results: In these studies, early maturers were taller during pre-puberty, but had shorter adult height then later maturers. Late maturers experience a longer period of pre-pubertal growth and a delayed age of peak height velocity, leading to an extended overall time of growth, until adult stature was obtained. …

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Vortex Tilting And The Enhancement Of Spanwise Flow In Flapping Wing Flight, Spencer Frank Dec 2011

Vortex Tilting And The Enhancement Of Spanwise Flow In Flapping Wing Flight, Spencer Frank

HIM 1990-2015

In summary the tilting mechanism helps to explain the overall flow structure and the stability of the leading edge vortex.; The leading edge vortex has been identified as the most critical flow structure for producing lift in flapping wing flight. Its stability depends on the transport of the entrained vorticity into the wake via spanwise flow. This study proposes a hypothesis for the generation and enhancement of spanwise flow based on the chordwise vorticity that results from the tilting of the leading edge vortex and trailing edge vortex. We investigate this phenomenon using dynamically scaled robotic model wings. Two different …

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Investigation On Interactions Of Unsteady Wakes And Film Cooling On An Annular Endwall, Matthew J. Golsen Dec 2011

Investigation On Interactions Of Unsteady Wakes And Film Cooling On An Annular Endwall, Matthew J. Golsen

HIM 1990-2015

In recent decades, greater interest in the effect of rotational wakes on gas turbine film cooling applications has produced increasing numbers of studies on these unsteady phenomena. Wakes are primarily shed from upstream components such as transition duct walls, stator vanes, and rotors. Studies have shown that in areas of unsteady flow, the best performing parameters in conventional steady investigations may not be the best for unsteady applications. One common method of modeling the unsteady wake interaction in subsonic flows is the use of spoke wheel type wake generators using cylindrical rods to produce the velocity detriment and local increase …

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Safe, In Situ Methodologies For The Destruction Of Triacetone Triperoxide And Other Explosive Peroxides., Christian Clausen, Rebecca Fidler, Michael Sigman, Cherie Yestrebsky Nov 2011

Safe, In Situ Methodologies For The Destruction Of Triacetone Triperoxide And Other Explosive Peroxides., Christian Clausen, Rebecca Fidler, Michael Sigman, Cherie Yestrebsky

UCF Patents

Triacetone triperoxide (TATP) and other explosives of the peroxide family are used extensively by terrorist organizations around the world because they are easy to prepare and very difficult to detect. TATO as an explosive is almost as powerful as TNT, but is extremely sensetive to friction and is one of the most sensetive explosives known.

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Sandspur, Vol 118, No 06, November 03, 2011, Rollins College Nov 2011

Sandspur, Vol 118, No 06, November 03, 2011, Rollins College

The Rollins Sandspur

Rollins College student newspaper, written by the students and published at Rollins College. The Sandspur started as a literary journal.

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Targeting Of Long Chain Triacylglycerol Hydrolase Gene For Tuberculosis Treatment (Con), Pappachan Kolattukudy, Jaiyanth Daniel, Chirajyoti Deb Oct 2011

Targeting Of Long Chain Triacylglycerol Hydrolase Gene For Tuberculosis Treatment (Con), Pappachan Kolattukudy, Jaiyanth Daniel, Chirajyoti Deb

UCF Patents

Disclosed herein are novel methods for screening for compounds useful in treating or preventing tuberculosis. In exemplary embodiments, screening methods are based on the implementation or manipulation of triacylglycerol hydrolase like polypeptides or polynucleotides encoding the same. The methods are useful in identifying agents active against TB infection.

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