Arts and Humanities Commons^™

Effect Of Intensity Increment On P300 Amplitude, Tim Skinner

USF Tampa Graduate Theses and Dissertations

The purpose of this study was to determine the effects of task difficulty on the amplitude and latency of the P300 by altering the intensity of the oddball stimulus. A P300 was obtained on 22 adult subjects ranging in age from 21 to 34 years of age (mean = 24 years) with normal hearing. The "frequent stimulus" was a 1000 Hz or 4000 Hz tone burst, gated with a rise and fall time of 10 msec and 20 msec plateau, presented at 75 dBn HL The "oddball stimulus" was a tone burst of the same frequency (1000 Hz or 4000 …

Mediational Tool Use And Strategic Behaviors During Collaborative Online Reading: A Microgenetic Case Study Of Beginning Students Of German, Sabine Siekmann

USF Tampa Graduate Theses and Dissertations

This study investigated collaborative online reading from a Sociocultural Theory (SCT) perspective. Building on, yet transcending, research into learning strategies, the research focused on the concepts of mediational tool use, strategic behavior, and patterns of dialogic engagement of college student dyads as they completed a series of three collaborative WebQuests in a beginning German as a Foreign Language (GFL) class.

On-screen actions and verbal interaction of six dyads of beginning GFL students were recorded during three short-term, collaborative WebQuests. Full motion screen recordings were transcribed, and relevant episodes were coded for mediational tool use and strategic behaviors.

All dyads used …

Investigation Of Spatial Filtering For Planar Range-Resolved Pulsed Laser Ablated Plume Imaging, James F. Winslow

USF Tampa Graduate Theses and Dissertations

This thesis presents a study of the intensified charge-coupled device (ICCD) imaging of pulsed laser ablated plumes. Two-dimensional imaging of laser ablated plumes is a very important diagnostic for PLD. ICCD array photography is a useful tool for imaging PLD. The images obtained using the standard technique are characterized and compared with ICCD images of an altered plume, ICCD images intentionally violating standard imaging procedures, and film thickness. The depth resolving properties of a pinhole was investigated with the intention of applying it to PLD plume imaging. This results in a more thorough understanding of the depth resolving property of …

Social And Behavioral Aspect Of Mother’S Health Behaviors And Neonatal Health: Risk Factor Analysis Of Neonatal Septicemia In Urban Slums Of Muntinlupa, Philippines, Chisaki Sato

USF Tampa Graduate Theses and Dissertations

Reducing neonatal mortality can contribute to the further reduction of infant mortality rates in international health as it is responsible for about half of the mortality rate for those underfive today. The situation of infant mortality in the Philippines is no exception to this global trend. This study of the social demographic aspects of sepsis neonatorum in the Philippines has explored the conditions of the urban environment, and local cultures related to newborn illnesses and the patterns of health seeking behaviors of urban poor mothers which can affect the survival of newborns. The mix of qualitative and quantitative research methods …

Apocalypth Pentagram, Matthew Alan Guest

USF Tampa Graduate Theses and Dissertations

Altars.

Joy! Rapture! I’Ve Got A Brain!, Thomas Hallock

USF St. Petersburg campus Faculty Publications

No abstract provided.

Race, Religion, And Attitudes Toward Capital Punishment: A Test Of Attribution Theory, Sheila M. Schlaupitz

USF Tampa Graduate Theses and Dissertations

The present study attempts to provide a more thorough understanding of public attitudes toward capital punishment. Two theories are tested toward this end, utilizing a random sample taken from the jury pool in Hillsborough County, Florida.

First, An indirect test of reference group theory demonstrates the degree to which faith group, religiosity, and race affect public attitudes toward the death penalty. Surprisingly, there is little, albeit mixed, support for reference group theory as it attempts to explain attitudes toward capital punishment. Using the relationships between religion and capital punishment attitudes that we presumed would emerge from the test of reference …

Influence Of C3S Content Of Cement On Concrete Sulfate Durability, Natalya G. Shanahan

USF Tampa Graduate Theses and Dissertations

The influence of tricalcium silicate content of cement on concrete durability has long been a topic of discussion in the literature. The objective of this investigation was to determine whether increasing tricalcium silicate content of cement has a negative effect on concrete sulfate durability. Several mill certificates were reviewed to select cements with similar tricalcium aluminate content and variable tricalcium silicate contents. Cements selected for this study were randomly labeled as cements C, D, D2, E, and P.

The following properties were assessed for the as-received cements: Blaine fineness, particle size distribution, chemical oxide content, and mineralogical content. Three different …

Effects Of Early Acoustic Stimulation On Prepulse Inhibition In Mice, Lisa Tanner

USF Tampa Graduate Theses and Dissertations

The purpose of this study was to determine the effects of an atypical pattern of early acoustic stimulation on auditory development. Previous human research suggests that the acoustic environment of pre-term human infants in the Neonatal Intensive Care Unit (NICU) negatively affects some aspects of auditory development. Animal research suggests that premature auditory stimulation interrupts auditory development. Because mice are born before their auditory systems are developed, they make an excellent model for research on fetal and postnatal plasticity of the auditory system. The premature auditory state of newborn mice is similar to that of the NICU pre-term infant, albeit, …

Managerial Decision Making And Stockholder Wealth Maximization: A Limited Dependent Variables Model Of The Choice Between Dividends And Stock Repurchases, Noel Reynolds

USF Tampa Graduate Theses and Dissertations

This research attempts to provide an explanation for the firm's choice of using either a dividend or a stock repurchase for distributing cash to its stockholders. It also provides an examination of the impact of the firm's disbursement decision on the stock market's resulting reassessment of the value of the firm.

Before analyzing the disbursement decision, I examine the stock market effects of dividends and stock repurchases using an event study methodology that corrects for the possible variance change effects of cash distribution announcements. I find that the measured wealth effects are statistically significant and similar, for the most part, …

A Comparative Simulation Of Type I Error And Power Of Four Tests Of Homogeneity Of Effects For Random- And Fixed-Effects Models Of Meta-Analysis, Lisa Therese Aaron

USF Tampa Graduate Theses and Dissertations

In a Monte Carlo analysis of meta-analytic data, Type I and Type II error rates were compared for four homogeneity tests. The study controlled for violations of normality and homogeneity of variance. This study was modeled after Harwell (1997) and Kromrey and Hogarty's (1998) experimental design. Specifically, it entailed a 2x3x3x3x3x3x2 factorial design. The study also controlled for between-studies variance, as suggested by Hedges and Vevea's (1998) study.

As with similar studies, this randomized factorial design was comprised of 5000 iterations for each of the following 7 independent variables: (1) number of studies within the meta-analysis (10 and 30); (2) …

Treatment Of Benign Paroxysmalvertigo: Necessity Of Post-Maneuver Prohibition, Jennifer L. Deboodt

USF Tampa Graduate Theses and Dissertations

Benign paroxysmal positional vertigo (BPPV), characterized by a history of brief attacks of intense positional vertigo and rotary nystagmus, results from otoconial migration into the semicircular canals, making the sensory structures in the canal gravity sensitive. Treatment methods include positioning maneuvers, which return the otoconia back into the otolith, and typically include a variety of activity limitations for the subsequent 24-48 hours. Previous studies suggest BPPV treatment can be successful without any limitations of the patient post- therapy. The purpose of this study was to determine the necessity of post-maneuver restrictions on BPPV patients treated with the Canalith Repositioning Maneuver. …

Mediating The Model: Women's Microenterprise And Microcredit In Tobago, West Indies, Cheryl A. Levine

USF Tampa Graduate Theses and Dissertations

From the perspectives of economic anthropology, feminist anthropology, and feminist theory, this applied anthropological study is an evaluation of a popular international development model targeting poor women. Based on the celebrated Grameen Bank of Bangladesh, the so-called "microcredit" model is designed as a poverty alleviation strategy to provide small loans to poor women in rural settings and is designed to facilitate microenterprise development. Due to the popularity of the microcredit model with the international development community, it is being replicated in different settings. Through an analysis of microenterprise development among Afro-Caribbean women, this study presents the argument that successful application …

The Relationship Between Optokinetic Nystagmus And Caloric Weakness, D'Arcy D. Cyr

USF Tampa Graduate Theses and Dissertations

Traditionally, results from caloric testing and optokinetic nystagmus (OKN) testing are analyzed separately because caloric testing is a measure of peripheral function and OKN testing is considered to be a measure of central function. However, there is a connection between the visual system and the vestibular system in the vestibular nucleus of the brainstem. The purpose of this paper was to determine whether a relationship exists between optokinetic nystagmus results and unilateral caloric weakness results. This was determined by conducting a retrospective study of forty patients who exhibited a unilateral caloric weakness greater than or equal to twenty percent and …

In Search Of David Paul Davis, Rodney Kite-Powell

USF Tampa Graduate Theses and Dissertations

The 1920s land boom in Florida produced a wide variety of characters. Among the most important, but lesser known, of those was David Paul Davis. Davis was born in November 1885 in Green Cove Springs, Florida. His family moved to Tampa in 1895, where he attended school and held a number of different jobs. He left Tampa in 1908 and reappeared in Jacksonville in 1915. That same year, in Jacksonville, he married Marjorie H. Merritt.

The young couple moved to Miami in 1920, where Davis began to sell real estate. He became quite adept, developing a number of subdivisions in …

Film In The Classroom: Toward A More Effective Pedagogy, Jonathan Godwin

USF Tampa Graduate Theses and Dissertations

The postmodern critique has effectively called on anthropologists to reevaluate ethnographic authority when representing others. However, what is often found lacking in this criticism is an exploration of the ways in which audiences interpret anthropological knowledge. One crucial area that can be easily researched is audience reception of film in introductory anthropology classes. As professors of anthropology increasingly rely on film for illustrating anthropological concepts, we must have an understanding of how this medium is interpreted by student audiences. Film's ability to convey complex information without additional contextualization has yet to be substantiated and previous research has indicated that visual …

Frequency Distributions Of Escherichia Coli Subtypes In Various Fecal Sources Over Time And Geographical Space: Application To Bacterial Source Tracking Methods, Matthew A. Anderson

USF Tampa Graduate Theses and Dissertations

Bacterial source tracking (BST) methods often involve the use of phenotypic or genotypic fingerprinting techniques to compare indicator bacteria such as Escherichia coli isolated from unknown sources against a library of fingerprints from indicator bacteria found in the feces of various known source animals. The predictive capability of a library is based in part on how well the library isolates reflect the true population diversity of indicator bacteria that can potentially impact a water body. The purpose of this study was to compare the behavior of E. coli population structures in the feces of humans, beef cattle and horses across …

Studies On Antibacterial Activities Of N-Thiolated Β-Lactams And Their Polymeric Nanoparticles Against Mrsa, Jeung-Yeop Shim

USF Tampa Graduate Theses and Dissertations

Methicillin-resistant Staphylococcus Aureus (MRSA) is now the most challenging bacterial pathogen affecting patients in hospitals and in care centers, and has brought on the need to develop new drugs for MRSA. This thesis centers on studies of N-thiolated β-lactams, a new family of potent antibacterial compounds that selectively inhibit the growth of methicillin-resistant Staphylococcus aureus (MRSA).

Chapter 1 describes MRSA in more detail. Chapter 2 outlines experiments on the effect of a fatty ester group (CO₂R) on the C₄-phenyl ring of N-methylthio β-lactams, expecting that attachment of long chain ester moieties might increase the hydrophobicity, …

"Insolent And Contemptuous Carriages": Re-Conceptualizing Illegitimacy In Colonial British America, John Watkins

USF Tampa Graduate Theses and Dissertations

This Master's thesis investigates one particular aspect of sexuality in colonial Anglo America--the products of non-marital intercourse. Earlier historical research emphasized the importance of economic considerations in the creation of bastardy laws and the prosecution and punishment for violators of these statutes. Undoubtedly, financial anxieties were a major concern in out-of-wedlock births, but they were only one concern of many. Class, race, and gender dynamics were prominent in colonists' conceptualization of illegitimacy and largely defined who was at risk for having an "insolent and contemptuous carriage" and the resulting punishment for the debauched act. Elite, white officials made women, servants, …

Characterization Of Obsidian Sources In Pantelleria, Italy, Barbara A. Vargo

USF Tampa Graduate Theses and Dissertations

The study of prehistoric trade and exchange networks in the Western Mediterranean is directly linked to the identification and location of commodities available to Neolithic communities in that region. One of these commodities is a volcanic glass commonly known as obsidian.

This investigation focused on the procurement, processing, and distribution of obsidian from the island of Pantelleria, situated between the southwestern coast of Sicily in the Straits of Sicily and the northeastern coast of Africa near Cape Bon, Tunisia. Previous studies indicate that there are several chemically different source areas on the island.

Research involved the identification of primary obsidian …

Phylogeography And Evolution Of The Florida Crown Conch (Melongena Corona), Kenneth A. Hayes

USF Tampa Graduate Theses and Dissertations

Melongena corona and closely related congeners are a conspicuous part of the marine intertidal benthic communities of Florida and southeastern Alabama. Significant genetic differentiation among adjacent populations has been conjectured based on variation in shell morphology, habitat discontinuity, low levels of adult motility, and the presence of an aplanic lecithotrophic larval stage. Furthermore, studies of the highly variable shell morphology often have resulted in confusing specific and subspecific definitions of these gastropods, which are often referred to as the "corona complex". Variation in shell morphology may indicate local adaptation or environmentally induced phenotypic plasticity. In this study I utilized mitochondrial …

Analytical Strategies In Deciding Bus Route Alignments, Sandeep Seshan Iyer

USF Tampa Graduate Theses and Dissertations

In this research a heuristic algorithm is developed for searching and identifying preferred actions as applied to the bus route design problem. The search routine evaluates each subsequent segment added to the route in the context of the value of that segment and also the value of future decisions and opportunities for subsequent segments. The total overall maximum accessibility of the system is calculated using a minimum path network between each node pair and adding the accessibility of all route segments. This is equivalent to assuming that there was a direct shortest path route between every two destinations in the …

The Omar Torrijos Regime: Implications For The Democratization Process In Panama, Emma Scribner

USF Tampa Graduate Theses and Dissertations

Since gaining independence from Colombia in 1903, Panama has witnessed both elitist democratic governments and authoritarian populist governments. The oligarchic system in place throughout much of Panama's history was a significant hindrance to real democracy taking hold within the country. Democracy was further set back by the inordinate power exerted by the US presence on the isthmus throughout the twentieth century. Omar Torrijos's time as head of the Panamanian government from 1969 to 1981 exhibited populist, paternalistic and personalistic characteristics. His government marked an attempt to establish a form of government based on popular democracy. While a number of social …

Towards A Single-Mode Dispensed Polymer Optical Waveguide, Jill Michelle Kalajian

USF Tampa Graduate Theses and Dissertations

Dispensed organic polymer optical waveguides suitable for single-mode operation were recently fabricated. Different dispensing pressures, polymers, and dispensing tips were used in the drawing method.

The waveguides were measured to be approximately 16[mu] wide and 0.8[mu] tall. This is significantly smaller than previously reported dimensions of 300[mu] x 3.5[mu] waveguides fabricated with a similar dispensed polymer method. The waveguides were also found to be suitable for single-mode operation through a series of approximate calculations . This is also something previously not achieved with the larger waveguides.

This novel approach to waveguide fabrication could reduce the expense and time of creating …

Otherness And Blackness, Chioke A. M I'Anson

USF Tampa Graduate Theses and Dissertations

The purpose of this paper is to provide a phenomenological examination of Otherness as it relates to the experience of being black in the America. The project begins with a summary of the Otherness theories of Emmanuel Levinas, Jean-Paul Sartre, and Simone de Beauvoir. I then compare these accounts to "Black Consciousness" with a criticism of Sartre from Frantz Fanon. I use this criticism to construct new concepts that will help to better understand the experience of blackness.

Optimizing Long-Term Retention Of Abstract Learning, Danielle Mazur

USF Tampa Graduate Theses and Dissertations

In a distributed learning strategy, study time is spread across multiple study sessions, without increasing total study time. The benefits of distributed practice, also known as spaced practice, on learning of rote-memory tasks (e.g., spelling, addition, and cued-recall of word pairs) are well known. However, few researchers have looked at the effects of distributed practice on the learning of abstract materials (e.g., physics problems, logical deductions, and algebra). We examined the effects of distributed practice on learning the abstract task of matrix multiplication. In Experiment 1, we taught participants matrix multiplication in either a massed (i.e., 0-day interstudy gap), or …

N-Thiolated Β-Lactams: Chemistry And Biology Of A Novel Class Of Antimicrobial Agents For Mrsa, Timothy E. Long

USF Tampa Graduate Theses and Dissertations

N-Methylthio beta-lactams represent a promising new family of antibacterial agents whose in vitro activity is confined largely to Staphylococcus species, including multidrug-resistant forms of S. aureus. Originally developed in the 1980's for use as synthetic intermediates, N-methylthio beta-lactams have recently been shown in these laboratories to possess intriguing biological properties which are addressed in Chapters I-IV. In terms of the antibacterial activities, the structural features and species specificities exhibited by these compounds are unlike those of any existing family of beta-lactam drugs. The lactams seem to exert their effects intracellularly, requiring passage of the bioactive species through the …

Design And Construction Of Plasma Enhanced Chemical Vapor Deposition Reactor And Directed Assembly Of Carbon Nanotubes, Joshua David Schumacher

USF Tampa Graduate Theses and Dissertations

The goals of this research project were the design and construction of a carbon nanotube (CNT) reactor based on the plasma enhanced chemical vapor deposition (PECVD) principle and the development of a method for directed assembly of CNTs by catalyst patterning. PECVD was selected as the growth method due to the requirement of a catalyst for the growth process, thereby facilitating directed assembly and controlled diameter CNT growth at well-defined locations.

The reactor was built in accord with horizontal flow design using standard ultra high vacuum components. The controllable parameters of the reactor include sample temperature, DC plasma intensity, chamber …

Characterization And Correlation Analysis Of Pharmaceutical Gelatin, Pascal Georges Felix

USF Tampa Graduate Theses and Dissertations

The properties of the aged gel and subsequent softgels were examined using mechanical and chemical testing methods. Our hypothesis was that a negligible variation will exist between the aged gel of the same type. The greater difference is expected to be seen between the types of gels described as 150 Bloom (alkaline treated collagen) and 195 Bloom (acid treated collagen).

The types of gelatin used were the acid processed (195 Acid Bone) and alkaline processed (150 Lime Bone). Because of the differences expressed as the result of their manufacture sequence (namely their molecular weights), it follows that physical attributes will …

Empirical Mass Balance Calibration Of Analytical Hydrograph Separation Techniques Using Electrical Conductivity, Joseph A. Cimino

USF Tampa Graduate Theses and Dissertations

Analytical baseflow separation techniques such as those used in the automated hydrograph separation program HYSEP rely on a single input parameter that defines the period of time after which surface runoff ceases and all streamflow is considered baseflow. In HYSEP, this input parameter is solely a function of drainage basin contributing area. This method cannot be applied universally since in most regions the time of surface runoff cessation is a function of a number of different hydrologic and hydrogeologic basin characteristics, not just contributing drainage area.

This study demonstrates that streamflow conductivity can be used as a natural tracer that …