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Modeling Of Solar-Powered Single-Effect Absorption Cooling System And Supermarket Refrigeration/Hvac System, Ammar Bahman 2011 University of South Florida

Modeling Of Solar-Powered Single-Effect Absorption Cooling System And Supermarket Refrigeration/Hvac System, Ammar Bahman

USF Tampa Graduate Theses and Dissertations

This thesis consists of two different research problems. In the first one, the aim is to model and simulate a solar-powered, single-effect, absorption refrigeration system using a flat-plate solar collector and LiBr-H2O mixture as the working fluid. The cooling capacity and the coefficient of performance of the system are analyzed by varying all independent parameters, namely: evaporator pressure, condenser pressure, mass flow rate, LiBr concentration, and inlet generator temperature. The cooling performance of the system is compared with conventional vapor-compression systems for different refrigerants (R-134a, R-32, and R-22). The cooling performance is also assessed for a typical year …


Giving Meaning To Grief: The Role Of Rituals And Stories In Coping With Sudden Family Loss, Julia Janelle Barnhill 2011 University of South Florida

Giving Meaning To Grief: The Role Of Rituals And Stories In Coping With Sudden Family Loss, Julia Janelle Barnhill

USF Tampa Graduate Theses and Dissertations

In this dissertation, I seek to better understand the sensemaking process among surviving family members after a tragic loss of a teenage or young adult child. Using social constructionism (Gergen, 1991) as a theoretical framework, I focused on how meanings of loss are constructed through the use of language and other symbols. I specifically looked at the role of family stories and rituals in making sense of the sudden loss as well as how a survivor's role as a sibling or parent may impact the grieving process. The participants in my research were all members of families in which a …


Influence Of Temperature On Yolk Resorption By Centropomus Undecimalis Larvae, Claudia Catalina Baron-Aguilar 2011 University of South Florida

Influence Of Temperature On Yolk Resorption By Centropomus Undecimalis Larvae, Claudia Catalina Baron-Aguilar

USF Tampa Graduate Theses and Dissertations

In an effort to determine the optimal temperature for rearing Centropomus undecimalis larvae during the yolk resorption period, larval development was measured under four different temperature regimes (23, 25, 28 and 31 °C). The eggs were incubated at 28 °C until hatching, which occurred at about 17 hours post-fertilization. After hatching, temperatures were adjusted to the respective treatment levels. Measurements were collected from 25 individual larvae across rearing temperatures at the following pre-determined time intervals: at hatching, 24 hours post hatch (hph), 48 hph, and 72 hph. Morphometric measurements were obtained from photomicrographs, including yolk sac length and height, oil …


Synthesis And Characterization Of Self-Healing Poly (Carbonate Urethane) Carbon-Nanotube Composites, Roger Wesley Bass 2011 University of South Florida

Synthesis And Characterization Of Self-Healing Poly (Carbonate Urethane) Carbon-Nanotube Composites, Roger Wesley Bass

USF Tampa Graduate Theses and Dissertations

Synthesis of high molar mass polycarbonate polyurethanes using a novel polyol is described. The resulting elastomers demonstrate excellent mechanical properties as well as the capability to re-heal after rupture without the addition of additives or imbedded healing agents. The self-healing functionality is shown to greatly improve with the addition of up to 1% single and multi-walled carbon nanotubes. The interface of the carbon nanotubes and self-healing polymer are probed using Raman techniques and provide an insight into how the self-healing actions are improved with the addition of carbon nanotubes.

Synthesis of polycarbonate polyurethanes and carbon nanotube composites using a novel …


The Portia Project: The Heiress Of Belmont On Stage And Screen, Ann Mccauley Basso 2011 University of South Florida

The Portia Project: The Heiress Of Belmont On Stage And Screen, Ann Mccauley Basso

USF Tampa Graduate Theses and Dissertations

Until now, there has not been a performance history of The Merchant of Venice that focuses on Portia, the main character of the play. Although she has the most lines, the most stage time, and represents the nexus of the action, Portia has often been hidden in Shylock's shadow, and this dissertation seeks to bring her into the spotlight. The Portia Project is a contribution to literary and theatrical history; its primary goal is to provide a tool for scholars and teachers. Moreover, because of Merchant's notoriously problematic nature, the play invites different perspectives. By presenting the diverse ways that …


Drug Courts Work, But How? Preliminary Development Of A Measure To Assess Drug Court Structure And Processes, Blake Barrett 2011 University of South Florida

Drug Courts Work, But How? Preliminary Development Of A Measure To Assess Drug Court Structure And Processes, Blake Barrett

USF Tampa Graduate Theses and Dissertations

The high prevalence of substance use disorders is well-documented among criminal offenders. Drug courts are specialty judicial programs designed to: 1) improve public safety outcomes; 2) reduce criminal recidivism and substance abuse among offenders with substance use disorders; and 3) better utilize scarce criminal justice and treatment resources. Drug courts operate through partnerships between the criminal justice, behavioral health and public health systems. Offenders participate in an intensive regimen of substance abuse treatment and case management while under close judicial supervision. Drug courts' effectiveness in reducing criminal recidivism and drug use has been documented through numerous primary studies as well …


The Role Of Discrete Emotions In Predicting Counterproductive Work Behavior, Jeremy Allen Bauer 2011 University of South Florida

The Role Of Discrete Emotions In Predicting Counterproductive Work Behavior, Jeremy Allen Bauer

USF Tampa Graduate Theses and Dissertations

The current study investigates how discrete negative emotions are related to specific facets of counterproductive work behaviors (CWB). The sample consisted of 241 employees who reported their frequency of experiencing negative emotions and their frequency of committing CWBs in the workplace. For 103 employees, supervisor reports of employee CWB were also obtained. The findings provide evidence that a wide range of negative emotions are related to most of the sub facets of CWB. There was also some evidence that supervisor reports differ systematically from employee reports of CWB. The theoretical, methodological, and organizational implications are discussed.


_Alien_ Thoughts: Spectatorial Pleasure And Mind Reading In Ridley Scott's Horror Film, Cecilia Madeline Bolich 2011 University of South Florida

_Alien_ Thoughts: Spectatorial Pleasure And Mind Reading In Ridley Scott's Horror Film, Cecilia Madeline Bolich

USF Tampa Graduate Theses and Dissertations

Pleasure experienced in an unpleasant film genre, like horror, has prompted numerous discussions in film studies. Noted scholars like Carol J. Clover and Noël Carroll have rationalized spectatorial enjoyment of a genre that capitalizes on human anxieties and complicates cultural categories. Clover admits that horror initially satisfies sadistic tendencies in young male viewers but then pushes them to cross gender lines and identify with the strong female heroine who defeats the film's threat. Carroll provides a basic explanation, citing spectators' cognitive curiosity as the source of pleasure. Both scholars are right to consider emotional, psychological, and cognitive experiences felt by …


Urban Greenways: The Case For The Selmon Greenway, Alana Brasier 2011 University of South Florida

Urban Greenways: The Case For The Selmon Greenway, Alana Brasier

USF Tampa Graduate Theses and Dissertations

Across the country and world, cities are building urban greenways to achieve environmental, economic, and social objectives. Greenways are recreational trails that provide functions beyond recreation, such as stormwater management, economic development, community development, and aesthetic improvements. A plan to build an urban greenway in downtown Tampa is underway. The greenway is proposed to be built underneath and adjacent to the Selmon Expressway, in conjunction with a widening and redecking project. A feasibility study was performed and approved by the Hillsborough County Metropolitan Planning Organization; now the biggest hurdle standing in the way of the Selmon Greenway is finding funding. …


Swirling: An Examination Of Time-To-Degree, Reasons, And Outcomes Associated With Multi-Institutional Transfers, Alytrice Robinson Brown 2011 University of South Florida

Swirling: An Examination Of Time-To-Degree, Reasons, And Outcomes Associated With Multi-Institutional Transfers, Alytrice Robinson Brown

USF Tampa Graduate Theses and Dissertations

Swirling is an emergent transfer pattern among college students. Swirlers are students who may have participated in a combination of reverse transfer, lateral transfer, or traditional transfer patterns. The available research on swirling has been predominately quantitative in nature. This study was designed to obtain qualitative data on multi-institutional transfers from a qualitative perspective.

A heuristic phenomenological approach grounded in the transformational learning theory method was used to obtain data. The data were obtained via an online blog-based interview. The interview revealed six themes in regards to why students swirl. This study also addressed time-to-degree and outcomes associated with students …


Corporate Speech: A Frame Anaylsis Of Cnn, Msnbc, And Fox News Coverage Of Citizens United V. Fec, Emma Rachel Brown 2011 University of South Florida

Corporate Speech: A Frame Anaylsis Of Cnn, Msnbc, And Fox News Coverage Of Citizens United V. Fec, Emma Rachel Brown

USF Tampa Graduate Theses and Dissertations

This study examined how Fox News, CNN, MSNBC, ABC, NBC, and CBS portrayed the Citizens United v. Federal Election Commission decision from the time of the decision, January 21, 2010 until the mid-term elections November 2, 2010. The broadcast transcripts were read for emergent frames to see how the stations framed coverage. The cable channels had the most coverage. MSNBC, ABC, NBC, and CBS framed the decision negatively, Fox News portrayed it positively, and CNN was neutral to negative in coverage.


Initial Ablation Of The Laurentide Ice Sheet Based On Gulf Of Mexico Sediments, Elizabeth A. Brown 2011 University of South Florida

Initial Ablation Of The Laurentide Ice Sheet Based On Gulf Of Mexico Sediments, Elizabeth A. Brown

USF Tampa Graduate Theses and Dissertations

The objective of this project is to reconstruct a picture of initial Laurentide Ice Sheet retreat at the end of the Last Glacial Maximum (LGM) using geochemical proxies in Gulf of Mexico sediments, and place the reconstruction into global perspective. The project asks two questions. (1) Can a time frame be established for initial retreat of the Laurentide Ice Sheet? (2) If so, how does the timing compare to that of other large ice sheets and mountain glaciers in both hemispheres?

Sediment core MD02-2550 from the anoxic Orca Basin offers excellent preservation and a high sediment accumulation rate. Twelve accelerator …


The Existential Compromise In The History Of The Philosophy Of Death, Adam Buben 2011 University of South Florida

The Existential Compromise In The History Of The Philosophy Of Death, Adam Buben

USF Tampa Graduate Theses and Dissertations

I begin by offering an account of two key strains in the history of philosophical dealings with death. Both strains initially seek to diminish fear of death by appealing to the idea that death is simply the separation of the soul from the body. According to the Platonic strain, death should not be feared since the soul will have a prolonged existence free from the bodily prison after death. With several dramatic modifications, this is the strain that is taken up by much of the mainstream Christian tradition. According to the Epicurean strain, death should not be feared since the …


Principals' Content Knowledge: Examining The Relationship Between Principals' Reading Knowledge And Leadership Actions From Principals' And Teachers' Perceptions, Angela Suzanne Butler 2011 University of South Florida

Principals' Content Knowledge: Examining The Relationship Between Principals' Reading Knowledge And Leadership Actions From Principals' And Teachers' Perceptions, Angela Suzanne Butler

USF Tampa Graduate Theses and Dissertations

Principals' leadership content knowledge in reading was investigated by examining the relationship between the perceived reading knowledge of principals and perceived leadership actions principals take to support reading instruction. Survey results from 78 principals and 1,876 teachers were analyzed. Results showed a positive, statistically significant correlation between principals' perceptions of their reading knowledge and principals' perceptions of the actions they take to support reading. A stronger positive, significant correlation between teachers' perceptions of their principal's reading knowledge and teachers' perceptions of their principal's actions was also demonstrated. These correlations substantiated studies that purported principals with more reading knowledge are more …


An Examination Of The Impact Of Preconception Health On Adverse Pregnancy Outcomes Through The Theoretical Lens Of Reciprocal Determinism, Mary Elizabeth Buie 2011 University of South Florida

An Examination Of The Impact Of Preconception Health On Adverse Pregnancy Outcomes Through The Theoretical Lens Of Reciprocal Determinism, Mary Elizabeth Buie

USF Tampa Graduate Theses and Dissertations

Statement of Purpose

The purpose of this study is to examine the impact of preconception health on adverse pregnancy outcomes through the theoretical lens of reciprocal determinism. Thus, this study aims to develop a preconception health conceptual framework that accounts for the interactive relationships among behavior, the environment, and the person.

Rationale for the Study

Women may not recognize a pregnancy until the first or second missed menstrual cycle, a full four to eight weeks or more after conception. Once a woman realizes the possibility of a pregnancy, it takes further time to confirm the pregnancy with a home pregnancy …


A Comparative Historical Analysis Of Post-War Moral Panics And The Construction Of Youth From 1938 To 2010, Judy L. Castillo 2011 University of South Florida

A Comparative Historical Analysis Of Post-War Moral Panics And The Construction Of Youth From 1938 To 2010, Judy L. Castillo

USF Tampa Graduate Theses and Dissertations

For the past 50 years, various moral panics have emerged in response to concerns about children and teens. In particular, interest in entertainment appealing to youth has been the focus of social and legislative changes aimed at protecting youth from increased sexual and violent content associated with comic books, music lyrics, Internet content, and film and television.

The intent of this study is to compare the emergence and progression of moral panics related to entertainment appealing to youth, such as comic books, music lyrics, the Internet, and film and television, since 1938 to 2010 to better understand the ways we …


A Focus Group Study Of Baby Boomers' Processing And Interpretations Of Fear Appeals In Health Care Reform Political Advertising, Allyson Dawn Calandro 2011 University of South Florida

A Focus Group Study Of Baby Boomers' Processing And Interpretations Of Fear Appeals In Health Care Reform Political Advertising, Allyson Dawn Calandro

USF Tampa Graduate Theses and Dissertations

This qualitative research study describes the processing and interpretations of "Baby Boomers" in response to fear appeals from two health care reform political advertisements. Research suggests that scholars continue to disagree on the audience's interpretations of fear appeals, based on studies comparing different levels of fear, emotions, and interpretations by specific members of the population. However, little is known about how "Baby Boomers" interpret fear used in health care reform advertising. The method included six focus groups. Thematic analysis revealed five key themes: "Baby Boomers'" processing produced a range of emotions, they demand more facts, the fear expressed was fear …


A Modeling Analysis Of Dissolved Carbon Dioxide Discharged From Howard F. Curren Advanced Wastewater Treatment Plant, Dustin Capps 2011 University of South Florida

A Modeling Analysis Of Dissolved Carbon Dioxide Discharged From Howard F. Curren Advanced Wastewater Treatment Plant, Dustin Capps

USF Tampa Graduate Theses and Dissertations

Currently, the US Environmental Protection Agency primarily regulates the discharge of dissolved nitrogen and phosphorous from wastewater treatment plants in the United States. A recent study has shown that the treated effluent of many plants contains concentrations of dissolved carbon dioxide well above the expected theoretical equilibrium concentration of 0.6 mg/L, indicating that carbon dioxide may have been overlooked as a possible pollutant in receiving waters. For this reason, it is necessary to examine the possible presence of a discharge plume containing high levels of dissolved CO2 downstream from the outfall of a major wastewater treatment plant in Tampa, Florida. …


Preservice Teachers' Perceptions Of Their Perspective Transformations: A Case Study, Victoria Caruana 2011 University of South Florida

Preservice Teachers' Perceptions Of Their Perspective Transformations: A Case Study, Victoria Caruana

USF Tampa Graduate Theses and Dissertations

Utilizing a case study approach, this study explored the perspectives of preservice teachers as they relate to working with students with disabilities in inclusive classroom settings. Preservice teachers' perceptions about the extent, if any, their learning experiences during teacher preparation contributed to their perspectives was examined through a sequential exploratory design that employed both quantitative and qualitative data. The findings of this case study of six (6) elementary and secondary preservice teachers indicated that the experiences they had during their final student teaching (internship) were the most meaningful triggers of their perspective transformations. The findings further indicated that four (4) …


Sexually Explicit, Socially Empowered: Sexual Liberation And Feminist Discourse In 1960s Playboy And Cosmopolitan, Lina Salete Chaves 2011 University of South Florida

Sexually Explicit, Socially Empowered: Sexual Liberation And Feminist Discourse In 1960s Playboy And Cosmopolitan, Lina Salete Chaves

USF Tampa Graduate Theses and Dissertations

In this thesis, I provide an analysis of 1960s American popular culture by examining Playboy, "The Playboy Philosophy," Cosmopolitan, and Sex and the Single Girl. These cultural artifacts furthered the feminist movement by challenging gender structures and sexuality. I discuss how these publications focused on the advancement of the individual through careerism, consumerism and sexuality. These publications assisted in challenging and breaking down various aspects of gender and sexual boundaries and assisted in reworking social limitations that kept women from advancing themselves outside of the pre-set gender roles of domesticity. Regardless of the traditional feminist critique of …


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