Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

University of Central Florida

Discipline
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 2611 - 2640 of 6994

Full-Text Articles in Entire DC Network

Degradation Of Hydrazine And Monomethylhydrazine For Fuel Waste Streams Using Alpha-Ketoglutaric Acid, Carolina Franco Jan 2014

Degradation Of Hydrazine And Monomethylhydrazine For Fuel Waste Streams Using Alpha-Ketoglutaric Acid, Carolina Franco

Electronic Theses and Dissertations

Alpha-ketoglutaric acid (AKGA) is an organic acid important for the metabolism of essential amino acids as well as for the transfer of cellular energy. It is a precursor of glutamic acid which is produced by the human body during the Krebs Cycle. AKGA has a specific industrial interest as it can be taken as a dietary supplement and is also widely used as a building block in chemical synthesis. Collectively termed as hydrazine (HZs), hydrazine (HZ) and monomethylhydrazine (MMH) are hypergolic fuels that do not need an ignition source to burn. Because of the particular HZs' characteristics the National Aeronautics …

Go to article

Application Of Two-Photon Absorbing Fluorene-Containing Compounds In Bioimaging And Photodyanimc Therapy, Xiling Yue Jan 2014

Application Of Two-Photon Absorbing Fluorene-Containing Compounds In Bioimaging And Photodyanimc Therapy, Xiling Yue

Electronic Theses and Dissertations

Two-photon absorbing (2PA) materials has been widely studied for their highly localized excitation and nonlinear excitation efficiency. Application of 2PA materials includes fluorescence imaging, microfabrication, 3D data storage, photodynamic therapy, etc. Many materials have good 2PA photophysical properties, among which, the fluorenyl structure and its derivatives have attracted attention with their high 2PA cross-section and high fluorescence quantum yield. Herein, several compounds with 2PA properties are discussed. All of these compounds contain one or two fluorenyl core units as part of the conjugated system. The aim of this dissertation is to discuss the application of these compounds according to their …

Go to article

Genetic And Biochemical Characterization Of The Roles Of Two Putative Purine Transporters In The Infectious Cycle Of Borrelia Burgdorferi, Sunny Jain Jan 2014

Genetic And Biochemical Characterization Of The Roles Of Two Putative Purine Transporters In The Infectious Cycle Of Borrelia Burgdorferi, Sunny Jain

Electronic Theses and Dissertations

Lyme disease, the most common tick borne disease in United States, is caused by the bacterial pathogen Borrelia burgdorferi. In nature, B. burgdorferi exists in an enzootic infectious cycle between an arthropod vector and mammalian hosts. Identification and characterization of the genes essential for B. burgdorferi survival throughout its infectious cycle is an important step toward understanding the molecular mechanisms involved in B. burgdorferi pathogenesis. B. burgdorferi contains a small genome, which lacks the genes encoding for the enzymes required for de novo synthesis of amino acids, fatty acids and nucleic acid precursors. Therefore, the spirochete is dependent upon the …

Go to article

The U.S. Environmental Movement 1890-2002: Discourse Divisions, Environmental Crisis Events, And Strategic Concessions, Wendi Kane Jan 2014

The U.S. Environmental Movement 1890-2002: Discourse Divisions, Environmental Crisis Events, And Strategic Concessions, Wendi Kane

Electronic Theses and Dissertations

The U.S. Environmental Movement is facing a paradox: increased mobilization over the last 100 years has not been entirely effective in halting environmental degradation. This research suggests that discourse divisions among environmental movement organizations constitute a fundamental obstacle to progressive change. The discourse divisions are evident in movement organizing patterns during periods of increased environmental crisis over the history of the modern environmental movement. In addition, evidence suggests that federal environmental policy is an outcome of increased organizing among movement organizations with more transformative visions of change. However, policy outcomes from increased pressure among transformative organizations are significantly correlated with …

Go to article

Effect Of Acute L-Alanyl-L-Glutamine (Sustamine) And Electrolyte Ingestion On Plasma Electrolytes, Physiologic Measures, And Neuromuscular Fatigue During Endurance Exercise, William Mccormack Jan 2014

Effect Of Acute L-Alanyl-L-Glutamine (Sustamine) And Electrolyte Ingestion On Plasma Electrolytes, Physiologic Measures, And Neuromuscular Fatigue During Endurance Exercise, William Mccormack

Electronic Theses and Dissertations

The purpose of this study was to compare the efficacy of two dose levels of L-Alanyl-LGlutamine in a commercially available sports drink to the sports drink only on time to exhaustion, neuromuscular fatigue and physiological measures during prolonged endurance exercise. Twelve endurance-trained males (23.5±3.7 yrs; 175.5±5.4 cm; 70.7±7.6 kg) performed four trials, each consisting of 1 hr treadmill runs at 75% of VO2peak followed by a run to exhaustion at 90% of VO2peak. The trials differed in type of hydration. One trial consisted of no hydration (NHY), another required ingestion of only a sports drink (ET), and two trials required …

Go to article

Validation Of A Novel Hypothesis Of Generating Foam Cells By Its Use To Study Reverse Cholesterol Transport, Bhaswati Sengupta Jan 2014

Validation Of A Novel Hypothesis Of Generating Foam Cells By Its Use To Study Reverse Cholesterol Transport, Bhaswati Sengupta

Electronic Theses and Dissertations

Generation of foam cells, an essential step for reverse cholesterol transport (RCT) studies, uses the technique of receptor dependent macrophage loading with radiolabeled acetylated Low Density Lipoprotein (Ac-LDL). In this study, we used the ability of a biologically relevant detergent molecule, Lysophosphatidylcholine (Lyso PtdCho), to form mixed micelles with cholesterol or cholesteryl ester (CE) to generate macrophage foam cells. Fluorescent or radiolabelled cholesterol / Lyso PtdCho mixed micelles were prepared and incubated with RAW 264.7 or mouse peritoneal macrophages. Results showed that such micelles were quite stable at 4°C and retained the solubilized cholesterol during one month storage. Macrophages incubated …

Go to article

A Time-Course Analysis Of Behavioral Plasticity And Differential Gene Expression Patterns In Response To Density In Schistocerca Americana (Orthoptera: Acrididae), Steven Gotham Jan 2014

A Time-Course Analysis Of Behavioral Plasticity And Differential Gene Expression Patterns In Response To Density In Schistocerca Americana (Orthoptera: Acrididae), Steven Gotham

Electronic Theses and Dissertations

Phenotypic plasticity is the ability of the genotype to express alternative phenotypes in response to different environmental conditions and this is considered to be an adaptation in which a species can survive and persist in a rapidly changing environment. Some grasshoppers and locusts are capable of expressing an extreme form of density-dependent phenotypic plasticity, known as locust phase polyphenism. At low population density, the individuals typically have a cryptic coloration as nymphs, are less active, and only seek out conspecifics for reproductive purposes. At high density, however, they develop a drastically different phenotype in which they have a conspicuous coloration, …

Go to article

Chemical Differentiation Of Human Osseous, Non-Human Osseous, And Non-Osseous Materials Using Scanning Electron Microscopy - Energy Dispersive X-Ray Spectrometry (Sem/Edx) And Multivariate Statistical Analysis, Cayli Meizel-Lambert Jan 2014

Chemical Differentiation Of Human Osseous, Non-Human Osseous, And Non-Osseous Materials Using Scanning Electron Microscopy - Energy Dispersive X-Ray Spectrometry (Sem/Edx) And Multivariate Statistical Analysis, Cayli Meizel-Lambert

Electronic Theses and Dissertations

Identification of osseous materials is generally established on gross anatomical factors; however, highly fragmented or taphonomically altered materials are often problematic and alternative methods, such as biological, histological, or chemical analysis, must be utilized. Recently, chemical methods have been proposed to sort unknown materials according to their Ca/P ratios. Ubelaker and colleagues (2002) proposed using SEM/EDX to achieve this distinction and Christensen and colleagues (2012) have validated X-ray Fluorescence Spectrometry (XRF) for this application. An alternative method of analysis involves performing principal component analysis (PCA) on element spectra to classify unknown materials based on their trace element composition. Zimmerman (2013) …

Go to article

Diet At Medieval Alytus, Lithuania: Stable Carbon And Nitrogen Isotope Analysis Of Bone And Dentin Collagen, Katie Whitmore Jan 2014

Diet At Medieval Alytus, Lithuania: Stable Carbon And Nitrogen Isotope Analysis Of Bone And Dentin Collagen, Katie Whitmore

Electronic Theses and Dissertations

The Baltic region was a vibrant center of power and economic prosperity in medieval Europe; Lithuania in particular. Until now, little stable isotopic analysis has been utilized to assess diet in this region during this time period. The aim of this study was to undertake a preliminary assessment of the composition of diet at late medieval Alytus (late 14th to early 18th centuries) from bone (N=35) and dentin (N=38) collagen samples. The stable carbon isotopic data suggest a diet primarily comprised of C3 plants such as barley, rye, wheat, and flax, and animals consuming C3 plants. The stable nitrogen isotopic …

Go to article

To Better Understand The Theater Of The Middle Ages By An In-Depth Study Of The Old Testament Plays Of The York Cycle Of Corpus Christi Plays, Carole Casey Jan 2014

To Better Understand The Theater Of The Middle Ages By An In-Depth Study Of The Old Testament Plays Of The York Cycle Of Corpus Christi Plays, Carole Casey

Electronic Theses and Dissertations

Scholastic texts on theater move from the Greeks and Romans to the theater of Shakespeare's time with little or no acknowledgment of the Middle Ages. From the late thirteenth century until the reformation an active community theater known as the mystery plays existed throughout much of Europe. The York Corpus Christi Cycle was part of that movement. The play was produced by the guilds of York under the supervision of the chamber of commerce with the Church monitoring the theology and morals. Performed yearly on the Feast Day of Corpus Christi, the subject of the play was the salvation of …

Go to article

Blivits!, Charles Sutter Jan 2014

Blivits!, Charles Sutter

Electronic Theses and Dissertations

Blivits! is a feature-length documentary produced, written, and directed by Charles Sutter in pursuit of the Master of Fine Arts in Film & Digital Media from the University of Central Florida. This thesis examines the ethical questions of making a documentary in the digital era. In accordance with the restrictions of the program's guidelines, this film was completed a budget of less than $50,000. The film was shot over 18 days, in various locations up and down the east coast of the United States. This thesis is the record of Blivits!'s journey through development until completion of picture lock.

Go to article

Gayme: The Development, Design And Testing Of An Auto-Ethnographic, Documentary Game About Quarely Wandering Urban/Suburban Spaces In Central Florida., David Moran Jan 2014

Gayme: The Development, Design And Testing Of An Auto-Ethnographic, Documentary Game About Quarely Wandering Urban/Suburban Spaces In Central Florida., David Moran

Electronic Theses and Dissertations

GAYME is a transmedia story-telling world that I have created to conceptually explore the dynamics of queering game design through the development of varying game prototypes. The final iteration of GAYME is @deadquarewalking'. It is a documentary game and a performance art installation that documents a carless, gay/queer/quare man's journey on Halloween to get to and from one of Orlando's most well-known gay clubs - the Parliament House Resort. "The art of cruising" city streets to seek out queer/quare companionship particularly amongst gay, male culture(s) is well-documented in densely, populated cities like New York, San Francisco and London, but not …

Go to article

Pnmt As A Novel Marker For Progenitor Cells, Steven Ebert, Karl Pfeifer Dec 2013

Pnmt As A Novel Marker For Progenitor Cells, Steven Ebert, Karl Pfeifer

UCF Patents

In certain aspects, the present invention provides methods and compositions relating to a Pnmt-positive progenitor cell. In certain aspects, the present invention relates to methods for isolating and transplanting the subject progenitor cells, and methods for treating diseases such as myocardiac injuries and neurodegenerative disorders.

Go to article

Stat3 Inhibitor Having Anti-Cancer Activity And Methods (Us), James Turkson, Andrew Hamilton, Richard Jove, Said Sebti Dec 2013

Stat3 Inhibitor Having Anti-Cancer Activity And Methods (Us), James Turkson, Andrew Hamilton, Richard Jove, Said Sebti

UCF Patents

A small-molecule Stat3 dimerization inhibitor, S3I-M2001, is described and the dynamics of intracellular processing of activated Stat3 within the context of the biochemical and biological effects of the Stat3 chemical probe inhibitor are elucidated. S3I-M2001 is a newly-identified oxazole-based peptidomimetic of the Stat3 Src Homology (SH) 2 domain-binding phosphotyrosine peptide that selectively disrupts active Stat3:Stat3 dimers. Stat3-dependent malignant transformation, survival, and migration and invasion of mouse and human cancer cells harboring persistently-activated Stat3 were inhibited by S3I-M2001. S3I-M2001 inhibited Stat3-dependent transcriptional regulation of tumor survival genes, such as Bcl-xL. The disclosed compound is useful as a new potential treatment for …

Go to article

A Preliminary Study For Estimating Postmortem Interval Of Fabric Degradation In Central Florida, Lorraine L. Humbert Dec 2013

A Preliminary Study For Estimating Postmortem Interval Of Fabric Degradation In Central Florida, Lorraine L. Humbert

HIM 1990-2015

Forensic anthropologists rely on forensic evidence to estimate the postmortem interval of a decedent. This may include the study of the degree of deterioration of the human body, the life stage of insects, and the degradation of associated material evidence. Material evidence comes in many forms, and certain taphonomic processes will affect the material and must be considered when making inferences about a PMI. These include variables such as the characteristics of the soil, microorganisms, and the presence of a decaying organic material. Previous research has undertaken studies in how fabric degrades over time; however, there is no standard methodology …

Go to article

The Glycine And Proline Reductase Systems: An Evolutionary Perspective And Presence In Enterobacteriaceae, Joshua Witt Dec 2013

The Glycine And Proline Reductase Systems: An Evolutionary Perspective And Presence In Enterobacteriaceae, Joshua Witt

HIM 1990-2015

The Glycine and Proline Reduction systems are two of the best characterized selenoenzymes in bacteria and have been found to occur in a wide variety of clostridia [1-5]. These enzymes are utilized to reduce glycine or D-proline to obtain energy via substrate level phosporylation or membrane gradients, respectively [6, 7]. This includes the pathogens C. difficile and C. botulinum [5, 8]. Strains of C. difficile are activate toxigenic pathways whenever either of these pathways is active within the cell [5, 8]. Though evolutionary studies have been conducted on ammonia producing bacteria [9] none has been done to directly characterize these …

Go to article

Survey Of Comparative Human And Non-Human Osteology: Common Florida Species, Jennifer Dewey Dec 2013

Survey Of Comparative Human And Non-Human Osteology: Common Florida Species, Jennifer Dewey

HIM 1990-2015

Forensic anthropologists are tasked with the responsibility of identifying human remains in a forensic context. This includes differentiating between human and non-human osteological remains, and further determining a species-specific identification when presented with nonhuman material. Previous research has provided manuals that are typically limited to one class of animal and includes either photographs or descriptions of cranial or post-cranial skeletal elements. Further, the available resources generally cover a limited number of species from Florida#s diverse habitat. Therefore, the intent of this thesis was to compile a comprehensive comparative osteological guide of local Florida species that addressed both cranial and postcranial …

Go to article

Development And Validation Of An Absorption Sensor For Time-Resolved Measurements Of Co And Co2, Kyle Thurmond Dec 2013

Development And Validation Of An Absorption Sensor For Time-Resolved Measurements Of Co And Co2, Kyle Thurmond

HIM 1990-2015

A sensor was developed for simultaneous measurements of carbon monoxide and carbon dioxide fluctuations in internal combustion engine exhaust gases. This sensor utilizes low-cost and compact LEDs that emit in the 3-5[micro]m wavelength range which are more appropriate for practical applications than the more traditionally used lasers. An affordable, fast response sensor that can measure these gases has broad application that can lead to more efficient, fuel flexible engines and regulations of harmful emissions. LEDs have a more spectrally broad and diverging emission than lasers which presented many design challenges. The optical design software ZEMAX was utilized to overcome these …

Go to article

Ebbing Winds: Life Rituals At Home And Abroad, Asya Fergiani Dec 2013

Ebbing Winds: Life Rituals At Home And Abroad, Asya Fergiani

HIM 1990-2015

The intent of this thesis was to write a memoir of my five month trip to Libya that explores cultural differences through my experiences as an American with Western ideals. This memoir is focused on the cultural norms of marriage in the rural town of Msalata, in the central rural farming belt north of the ever expanding Sahara Desert of North Africa. My goal was to produce a work that is informational while showing the humanity of the local people through my perceptions as an outsider with different expectations. It was a time of discovery for me about the value …

Go to article

Sandspur, Vol 120, No 11, November 21, 2013, Rollins College Nov 2013

Sandspur, Vol 120, No 11, November 21, 2013, 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.

Go to article

Compounds That Suppress Cancer Cells And Exhibit Antitumor Activity (Us), James Turkson, Patrick Gunning Nov 2013

Compounds That Suppress Cancer Cells And Exhibit Antitumor Activity (Us), James Turkson, Patrick Gunning

UCF Patents

The present invention provides compounds S3I-201.1066 (Formula 1) and S3I-201.2096 (Formula 2) as selective Stat3 binding agents that block Stat3 association with cognate receptor pTyr motifs, Stat3 phosphorylation and nuclear translocation, Stat3 transcriptional function, and consequently induced Stat3-specific antitumor cell effects in vitro and antitumor response in vivo.

Go to article

Sandspur, Vol 120, No 10, November 14, 2013, Rollins College Nov 2013

Sandspur, Vol 120, No 10, November 14, 2013, 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.

Go to article

Sandspur, Vol 120, No 09, November 07, 2013, Rollins College Nov 2013

Sandspur, Vol 120, No 09, November 07, 2013, 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.

Go to article

Sandspur, Vol 120, No 07, October 24, 2013, Rollins College Oct 2013

Sandspur, Vol 120, No 07, October 24, 2013, 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.

Go to article

The Overlooked Victims Of Domestic-Violence Cases: Pets, Leandra Preston-Sidler Oct 2013

The Overlooked Victims Of Domestic-Violence Cases: Pets, Leandra Preston-Sidler

UCF Forum

Many of us consider pets as family members. Some refer to pets as “children” and treat them as such. I am guilty of the latter and will do anything for my dogs, including spending too much money on their needs, letting them sleep in our bed (pillows included) and generally spoiling them rotten.

Go to article

In Vitro Model Of Latent Mycobacterial Infection, Pappachan Kolattukudy, Jaiyanth Daniel, Chirajyoti Deb, Tatiana Sirakova Oct 2013

In Vitro Model Of Latent Mycobacterial Infection, Pappachan Kolattukudy, Jaiyanth Daniel, Chirajyoti Deb, Tatiana Sirakova

UCF Patents

A new in vitro culture model for latency of tuberculosis pathogen suitable for screening chemical libraries was developed by subjecting the pathogen to multiple stresses that the pathogen is thought to encounter in the host. When subjected to these stress factors, the pathogen develops key features characteristic of latency, drug resistance and lipid storage. Using the culture, a method to screen chemicals was developed. This method is suitable for high through put screening.

Go to article

Sandspur, Vol 120, No 04, September 26, 2013, Rollins College Sep 2013

Sandspur, Vol 120, No 04, September 26, 2013, 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.

Go to article

Sandspur, Vol 120, No 03, September 19, 2013, Rollins College Sep 2013

Sandspur, Vol 120, No 03, September 19, 2013, 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.

Go to article

University Of Central Florida Libraries, Annual Report 2012-2013, Ucf Libraries Sep 2013

University Of Central Florida Libraries, Annual Report 2012-2013, Ucf Libraries

Libraries' Documents

No abstract provided.

Go to article

Dataset Metadata, Sai Deng Sep 2013

Dataset Metadata, Sai Deng

Faculty Scholarship and Creative Works

No abstract provided.

Go to article

First Prev Next Last