Digital Commons Network^™

Study Of The Roles Of Lrba In Cancer Cell Proliferation And Ship-1 In Nk Cell Function, Joshua John Gamsby

USF Tampa Graduate Theses and Dissertations

LRBA (LPS Responsive Beige-like Protein Kinase A anchor) gene expression is induced by the mitogen LPS and is a member of the WBW gene family member which is comprised of genes that are involved in cellular proliferation and differentiation. This work provides evidence for the over-expression of LRBA in certain cancers, and that LRBA promoter activity and endogenous LRBA mRNA levels are negatively regulated by the tumor suppressor p53 and positively regulated by E2F transactivators. Furthermore, we demonstrate that inhibition of LRBA expression or function leads to decreased proliferation of cancer cells and that LRBA plays a role in the …

The Role And Regulation Of Argininosuccinate Synthase In Endothelial Function, Bonnie L. Goodwin

USF Tampa Graduate Theses and Dissertations

While cellular levels of arginine greatly exceed the apparent Km for endothelial nitric oxide synthase (eNOS), nitric oxide (NO) production is limited by availability of arginine. Results from this work have provided a unique understanding of endothelial NO production, showing that arginine regeneration, that is the recycling of citrulline back to arginine by argininosuccinate synthase (AS) and argininosuccinate lyase (AL), defines the essential source of arginine for NO production. Using RNA interference analysis, selective reduction of AS expression was shown to directly correspond with a diminished capacity of endothelial cells to produce NO, despite saturating levels of arginine in the …

Full-Page Versus Partial-Page Screen Designs In Web-Based Training: Their Effects On Learner Satisfaction And Performance, Phillip Eulon Grace

USF Tampa Graduate Theses and Dissertations

This is a report on research regarding the screen layout of Web-based training (WBT) programs, conducted with an eye toward providing evidence-based guidance for the design and development of WBT interfaces. Specifically, the study investigated the relative instructional benefits of two general types of WBT screen design, full-page and partial-page, in terms of both learner performance and learner satisfaction. The main hypotheses of the study were that the full-page design option would yield significantly better outcomes in both categories of interest.

The study employed a mixed-method design, generating both quantitative and qualitative data. The main phase of the study was …

Development Of A Dna Vaccine Against Streptococcus Mutans: A Novel Approach To Immunization Against Dental Caries, Thomas Han

USF Tampa Graduate Theses and Dissertations

Streptococcus mutans is the main causative agent of dental caries, which is a widespread infectious disease. A number of surface molecules are involved in the pathogenicity of this organism, including adherence and aggregation factors. The wallassociated protein A (WapA) of Streptococcus mutans GS-5 was previously demonstrated to be a sucrose-dependent adherence and aggregation factor, and is a larger precursor to extracellular antigen A (AgA), a candidate antigen for a dental caries vaccine.

The full-length wapA gene and a C-terminal truncated version agA encoding the AgA were cloned into the mammalian expression vector pcDNA 3.1/V5/His-TOPO. The above constructs were …

A Discourse Concerning Two New Compositions, Stanley D. Harrison

USF Tampa Graduate Theses and Dissertations

This project addresses problems for theorists of writing and composition that arose in the 1990s when capital privatizes the production of internetworked writing and starts operating in the manner of a practicing compositionist. I begin by noting that capital in the 1990s converted internetworked writing machines into fixed capital and started composing its version of the cultural form of the "social" we call the Internet. Thereafter, I argue that composition theorists can best understand the Internet, internetworked writing, and internetworked subjectivities if they regard capital as a formidable compositionist, one capable of making the machinofactured internetworked composition into a privately …

Influence Of Gender On Heart Rate And Core Temperature At Critical Wbgt For Five Clothing Ensembles At Three Levels Of Metabolic Rate, Maeen Zakaria Islam

USF Tampa Graduate Theses and Dissertations

Three main factors that influence heat stress are clothing, work demands and environmental conditions. Gender may also influence the amount of heat stress an individual can tolerate. The purpose of this study was to examine the role of gender in heat stress limits (critical WBGT) and heat strain (heart rate and core temperature). The null hypothesis was that there was no gender difference among critical WBGT, heart rate and core temperature.

Fifteen subjects (11 men and 4 women) wore five different clothing ensembles (cotton work clothes, cotton coveralls, particle barrier Tyvek, water-barrier/vapor permeable NexGen LS417, and vapor barrier Tychem QC …

All The News That’S Fit To Print? Media Reporting Of Environmental Protection Agency Penalties Assessed Against The Petroleum Refining Industry, 1997-2003, Melissa L. Jarrell

USF Tampa Graduate Theses and Dissertations

Although examination of the relationship between the media and crime has received considerable attention in the academic literature, only a few studies have examined news media coverage of environmental crimes. The present study examines print news media coverage of federal penalties assessed against the petroleum refining industry from 1997 to 2003. The Environmental Protection Agency initiated and/or settled 162 cases involving seventy-eight petroleum refining companies from 1997 to 2003. While a news search of the nation’s twenty-five largest newspapers produced seventy-four articles related to petroleum refining industry violations, only seventeen articles matched the EPA cases analyzed in the present study. …

A Comparison Of Traditional Physical Laboratory And Computer Simulated Laboratory Experiences In Relation To Engineering Undergraduate Students’ Conceptual Understandings Of A Communication Systems Topic, Giti Javidi

USF Tampa Graduate Theses and Dissertations

This study was designed to investigate an alternative to the use of traditional physical laboratory activities in a communication systems course. Specifically, this study examined whether as an alternative, computer simulation is as effective as physical laboratory activities in teaching college-level electronics engineering education students about the concepts of signal transmission, modulation and demodulation. Eighty undergraduate engineering students participated in the study, which was conducted at a southeastern four-year university.

The students were randomly assigned to two groups. The groups were compared on understanding the concepts, remembering the concepts, completion time of the lab experiments and perception toward the laboratory …

Occupational Role Portrayals Of African-American Women On Prime-Time Television, Shani Tyhirah Jefferson

USF Tampa Graduate Theses and Dissertations

This study examined portrayals of African-American women shown in professional careers on prime-time network television during the May 2005 sweeps month. Specifically, the study compares these portrayals to actual U.S. Department of Labor workforce statistics to observe a possible similarity. Additionally, the study identifies any behavioral and conversational stereotyped attributes ascribed to AfricanAmerican female characters shown in the workplace. A quantitative content analysis of four broadcast networks (FOX, ABC, UPN, and WB) ranked by Nielsen Media as having the highest rated prime-time television programming among minority households for 2003-2004 revealed that African-American female characters on network television are over-represented in …

Florida: Presidential Elections And Partisan Change, 1952-2004, Matthew Thomas Jefferys

USF Tampa Graduate Theses and Dissertations

The presidential contest of 1952 established a new trajectory for Florida politics. This pivotal election reversed decades of Democratic dominance and signified the beginning of presidential Republicanism in the state. Elections in the second half of the 20th century provided evidence of an increasingly favorable environment for Republican nominees. During this period Democrats were limited to carrying the state’s electoral votes three times. GOP presidential ascendancy in Florida was augmented by partisan conversion and the disproportionate in-migration of white Northerners following World War II. Contrary to unrivaled 1980s support, which created an anchor in a new core Southern Republican electoral …

Polytetrahydrofuran-And Dendrimer-Based Novel Sol-Gel Coatings For Capillary Microextraction (Cme) Providing Parts Per Trillion (Ppt) And Parts Per Quadrillion (Ppq) Level Detection Limits In Conjunction With Gas Chromatography And Flame Ionization Detection (Fid), Abuzar Kabir

USF Tampa Graduate Theses and Dissertations

Sol-gel capillary microextraction (CME) is a new direction in solvent-free extraction and preconcentration of trace analytes. CME presents significant interest in environmental, pharmaceutical, petrochemical, biomedical, agricultural, food, flavor, and a host of other important areas. Sol-gel CME utilizes advanced material properties of organic-inorganic hybrid sol-gel polymers to perform efficient extraction and enrichment of target analytes from a variety of matrices. In this dissertation, two novel sol-gel coatings were developed for CME: (a) sol-gel benzyl-terminated dendrimer coating, and (b) sol-gel polytetrahydrofuran (poly-THF) coating. A detailed investigation was conducted to evaluate the performance of the newly developed sol-gel coatings in solvent-free extraction …

The Role Of Sensation Seeking In Children’S Ability To Learn Alcohol Expectancy Associations, Nicole M. Bekman

USF Tampa Graduate Theses and Dissertations

Sensation seeking is a personality characteristic associated with problematic alcohol use and positive alcohol expectancies, but little research has examined the relationship between sensation seeking and the acquisition of alcohol expectancy information. In a recent study (Steinberg, 2003), sensation seeking was associated with how quickly and accurately college-aged students were able to learn alcohol-expectancy word pairs in a paired associate learning task. In this age group, however, the individuals had fully developed alcohol expectancies that may have influenced their rates of learning.

The current study sought to minimize the influence of previously held alcohol expectancies by exploring this relationship in …

Advertising 'The New Woman': Fashion, Beauty, And Health In Women's World, Pelin Basci

World Languages and Literatures Faculty Publications and Presentations

This study aims to re-examine Women's World, (a Middle Eastern women's publication that was active between 1913 and 1921), from a gender aware, but broadly constructed, interdisciplinary perspective that integrates women's studies with studies of advertising and consumption. A feminist journal with a relatively long publication life, Women's World contained a substantial number of advertisements encouraging the consumption of modem goods and services. Many of these notices promised to address the beauty, health and fashion needs of modem women, thus constructing in effect the public image of "the new woman." of that image, in turn, should facilitate our understanding of …

Cephalosporin Resistant Shigella Flexneri From A Clinical Isolate--A Rare Finding, Nasim Sabir, Afia Zafar

Department of Pathology and Laboratory Medicine

Shigellosis is an important public health problem, especially in developing countries. Antibiotic treatment of dysentery aimed at resolving diarrhea or reducing its duration, and to prevent transmission to other close contacts. Isolates with resistance to first line drugs have been reported throughout world, third generation cephalosporins and quinolones are mainstay of treatment. Shigella flexneri resistant to third generation cephalosporins in a clinical isolate is a rare finding, and this has been reported for the first time in Pakistan.

Manejo De Cipós Na Amazônia, Jeffrey J. Gerwing, Edson Vidal

Environmental Science and Management Faculty Publications and Presentations

Levantamentos florestais revelam que os cipós vêm se tornando cada vez mais abundantes em toda a Amazônia, tanto em florestas intactas quanto nas afetadas por atividades humanas, como a exploração de madeira. Nessa atividade, é recomendado o corte dos cipós ligados à árvore escolhida, para reduzir os danos às demais durante a queda. Conhecer a ecologia desse grupo de plantas e seu adequado manejo é essencial para entender as conseqüências do seu corte e para cumprir as metas de conservação da biodiversidade incluídas nos projetos de manejo de florestas tropicais.

Attacking The Ncaa's Anti-Transfer Rules As Covenants Not To Compete, Ray Yasser, Clay Fees

Articles, Chapters in Books and Other Contributions to Scholarly Works

No abstract provided.

Application Of Phenology To Assist In Hyperspectral Species Classification Of A Northern Hardwood Forest, Gretchen Sprehe

Theses

Tree species have unique spectral reflectance patterns that allows them to be both compared to other objects and to other types of trees. Increasing the spectral separation of such images may assist with surveying and forestry inventories. In past studies, most classifications were done with summer leaves, which darken and become very similar shades of green. This study utilized the phenology of trees to investigate how the changing colors of young or senescing leaves may assist in species classification based on aerial images. Images were taken of the Hubbard Brook Experimental Forest, which is mainly dominated by sugar maple (Acer …

Homosexuality : A Study Of Communication Between Professional Sports And The Media, Laurie Shantz

Master's Theses

No abstract provided.

Al2o3 Hosted Attenuated Phase Shift Mask Materials For 157 Nm, Yang Liu

Theses

The Semiconductor Industry Association Roadmap 2003 has put 157 nm optical lithography as the next generation lithography wavelength for the node of 70 nm integrated circuits and below. The small departure from 193 nm puts more challenge on imaging tools and processes. One of the crucial areas is the exploration of thin film optical materials for mask coatings at vacuum ultraviolet (VUV) wavelength. Attenuated Phase Shift Mask (APSM) is one of the optical enhancement technologies pushing critical dimension of lithography to diffraction limits. As no existing single material satisfies those demanding requirements of APSM, non-stoichiometric composite materials will be explored …

Making Sustainable And Environmental Improvements Through Focused Factories, Kyle Hurst

Theses

The purpose of this thesis is to examine the relationship between environmental strategy, business strategy, and manufacturing strategy. Specifically, this paper evaluates the potential link between a manufacturing strategy known as focused manufacturing (focused factories) and improved environmental performance. The thesis explores the current literature on focused factories and various environmental tools and strategies. Barriers to sustainable and environmental improvements are discussed, as well as the integration of environmental strategy into the overall business strategy of a company. To examine the relationship between focused factories and environmental improvement, statistical analysis is performed on data generated from a web-based survey sent …

The Study Of The Effect Of Shock And Vibration In The Distribution Cycle To The Performance Of Rfid Tags, Chalermlarp Rungkamol

Theses

The purpose of this research was to investigate the effect of shock and vibration during distribution on the performance of a Radio Frequency Identification (RFID) transponder. The RFID system selected for this study was a passive, ultra-high frequency system that complied with the requirements of Wal-Mart and the Department of Defense. The performance of an RFID tag was determined based on a transponder's read range. Two types of experiments were conducted in this research: test protocols used to identify the read range characteristics of the RFID transponder and a simulation of the product distribution cycle based on the ASTM D …

Characteristics Of Reduced Fat Milks As Influenced By The Incorporation Of Folic Acid, Kamalesh Achanta

LSU Master's Theses

Folic acid plays an important role in the prevention of neural tube defects such as spina bifida and anencephaly, heart defects, facial clefts, urinary abnormalities and limb deficiencies. Milk and milk products serve as a potential source for folic acid fortification due to the presence of folate binding proteins which seem to be involved in the folate bioavailability. Though milk is a not a good source of folic acid, fortification could help in the prevention of the above mentioned defects. The objective of this study was to examine the physico-chemical characteristics of reduced fat milks fortified with folic acid. Reduced …

Risk Reporting And Source Credibility: Trying To Make The Readers Interested, Raluca Cozma

LSU Master's Theses

An experiment with 98 participants was conducted to explore the effects of government versus multiple sources on perceived credibility and interest when applied to the same risk stories. It also analyzed the effects of source treatment on participants' assessment of government credibility and source reasonableness. The study investigated the effects of demographic characteristics of participants (age, gender, media use) on the same variables, and tried to determine if there was any statistical correlation between the two dependent variables of credibility and interest. It also analyzed the effects of human-interest reports on credibility and interest. Overall, the study found that participants …

Examining Sponsorship And Cosponsorship In The U.S. House Of Representatives, 1973-2002, Kelly Marie Burke

LSU Master's Theses

The purpose of this paper is to uncover the effects of background characteristics on members of Congress' legislative activity. I intend to measure legislative activity using the total number of bills sponsored and cosponsored during each Congress. Beginning in 1973, this original dataset includes over 6,000 observations and is the most comprehensive study of this subject. Because my dataset begins in 1973, I will be able to identify any effect that the unrestricted ability to cosponsor, which began in 1978, had on legislative activeness. It is my intention to contribute to our scholarly understanding of sponsorship and cosponsorship activity in …

Spalding Gray And The Slippery Slope Of Confessional Performance, David Price Terry

LSU Master's Theses

Beyond Spalding Gray’s iconic position as a confessional performer, he serves as a representative character for a culture increasingly consumed with both self-reflection and self- disclosure, where confessional speech is understood as somehow more “authentic” or “pure” than other forms of discourse. I argue that confession is a performative, not a constative utterance (a doing not a saying) and that it is a productive not a libratory act; it does not free an already existing self, but produces a new self in the act of performance. Consequently, though the confessional performance style typified by Gray can be aesthetically compelling for …

Modeling The Fate And Transport Of Chlorinated Benzenes In Baton Rouge Bayou, Sudheer Nimmagadda

LSU Master's Theses

Knowledge of the fate and transport of chlorinated benzenes is necessary at certain sites for effective remediation of contaminated soils using plants. Current research is examining the capability of wetland plants to catalyze degradation or attenuate migration, but again requires knowledge of the uptake of contaminants from an aqueous environment. A two stage model was used to estimate the rate of uptake of contaminants from sediments. The first stage of the model predicts pollutant leaching rates from sediments to the overlying water, which would then be fed into the plant or bioreactor model systems. In this study the flux from …

Press Street: A Concept For Preserving, Reintroducing And Fostering Local History, Brian J. Mcbride

LSU Master's Theses

To encourage increased stability in declining neighborhoods, government planning agencies and other land developers, continuously search for solutions to improve the quality of life for people living in communities in need of revitalization and a boost to their local economy. Studies have shown that well developed greenways and other public open spaces are improving the economic stability for many neighborhoods. Consequently, it is the creation of successful parks and public open spaces that have been found to be the first steps to improving such communities (The Trust for Public Land). If creating parks is the key to saving neighborhoods, can …

"Is There A Translator In Teh [Sic] House?": Cultural And Discourse Analysis Of A Virtual Speech Community On An Internet Message Board, Tracy Rene Leblanc

LSU Master's Theses

In the newly emergent field of online ethnography, netspeak and online behavior are quickly becoming the next frontier of linguistic anthropology. The discourse analysis and cultural investigation of the virtual speech community of Penismightier.com reveal several salient aspects of culture through the lens of the internet and online human behavior. This thesis focuses on aspects of language use in the discourse on message board threads on the Penismightier website. The Pen speech community has innovated a lexicon of original and modified techie language, such as unique emoticons and alpha-numeric orthography. The orthographic innovations of this virtual speech community blur the …

The Yes Men And Activism In The Information Age, Lani Boyd

LSU Master's Theses

Western history is filled with pranks and trickery intent on enlightening audiences by blending fiction with reality. The Yes Men, an Internet-based activist group, did just that, forging new ground and establishing themselves as political pranksters in a media-dominant global society. With an arsenal of parody, satire, interventions, and tactical obfuscation, the Yes Men attack those who they feel abuse their positions of power. They have impersonated public persons and infamous entities, including President George W. Bush, the World Trade Organization, and Dow Chemical. Their mimicry is so convincing that the audience cannot decipher between satire and the real thing. …

Covering The Revolution Of Roses (Differences And Similarities Between Georgia And Independent Television Companies), Nino Danelia

LSU Master's Theses

The study analyzed how independent and state media's news programs differ in the way they framed the Georgian Revolution of Roses. The paper analyzed what sources, frames and key words journalists used to describe the protest in order to investigate if the coverage was objective or biased in any particular direction. Study provides evidence that by framing protests in a different way, politicians and journalists give different meanings to the same issues and suggest what is at issue. Each party of the political elite tried to promote their own political viewpoints. By preferring sources from the ruling party and their …