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- Title
- Is Conflict a Factor in a Population's Quality of Life? A Comparative Study of University Students in the Palestinian Territories and Jordan.
- Creator
-
Asi, Yara, Unruh, Lynn, Ramirez, Bernardo, Liu, Albert/Xinliang, Sadri, Houman, University of Central Florida
- Abstract / Description
-
As nearly one third of the world's population lives in an area that is in some way touched by war, researchers have long been interested in the varied impacts of conflict on civilians. Many indicators, measuring both physical and mental constructs, have been assessed in war-torn populations from around the world, one of which is health-related quality of life (HRQoL). The occupied Palestinian Territories (oPt) are one region in which copious research on health indicators has been undertaken...
Show moreAs nearly one third of the world's population lives in an area that is in some way touched by war, researchers have long been interested in the varied impacts of conflict on civilians. Many indicators, measuring both physical and mental constructs, have been assessed in war-torn populations from around the world, one of which is health-related quality of life (HRQoL). The occupied Palestinian Territories (oPt) are one region in which copious research on health indicators has been undertaken in an effort to understand how long-term conflict manifests itself in noncombatant populations. However, existing studies focus primarily on indicators within the Palestinian population itself that impact HRQoL, and not on the extent to which the presence of the conflict and its consequences disturb physical and mental health outcomes compared to areas without conflict. The purpose of this study is to evaluate the impact of long-term conflict by comparing HRQoL in the oPt and the neighboring country of Jordan, as well as to assess how demographic factors such as socioeconomic status and household size can moderate or aggravate this impact. The potential mediating factors of insecurity and perceived stress will also be assessed. This study found that the presence of conflict was not the most significant predictor of low HRQoL. The mitigating factor of a traditional foundation of mental resilience in Palestinian culture is addressed as a potential explanation for this result. The implications of this study are wide-ranging, particularly in their ability to contribute to healthcare policy recommendations in war-affected areas, and to bolster our understanding of the health status and needs of those living in these areas.
Show less - Date Issued
- 2015
- Identifier
- CFE0005574, ucf:50233
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0005574
- Title
- The role of freedom in assessing the relationship between tourism competitiveness and quality of life: The case of Central America.
- Creator
-
Kubickova, Marketa, Croes, Robertico, Nusair, Khaldoon, Rivera, Manuel, Robinson, Edward, Santana, Maria, University of Central Florida
- Abstract / Description
-
The purpose of this dissertation study is to investigate the relationship among tourism competitiveness, quality of life, and freedom. The main premise is that the degree of freedom shapes the relationship between tourism development and quality of life. The study hypothesized that the greater the degree of freedom is, the greater impact tourism development will have on quality of life of residents of a destination. The theoretical framework of this study is based on combining Sen's...
Show moreThe purpose of this dissertation study is to investigate the relationship among tourism competitiveness, quality of life, and freedom. The main premise is that the degree of freedom shapes the relationship between tourism development and quality of life. The study hypothesized that the greater the degree of freedom is, the greater impact tourism development will have on quality of life of residents of a destination. The theoretical framework of this study is based on combining Sen's capability approach with the tourism competitiveness theory. Tourism competitiveness aims at enhancing the quality of life, while Sen's capability approach provides the ingredients for how to improve quality of life through freedom. Thus, the main premise is that the combination of the two theoretical frameworks is possible through the construct of quality of life. The study is applied to the Central American region as tourism has become an important driver for socio-economic progress and growth. The study applied panel data analyses and comparative regression analyses to decipher and understand the context of tourism competitiveness and quality of life. The study built a tourism competitiveness index and investigated the intertemporal effects of tourism competitiveness, quality of life, and freedom.The major findings of this study are as follow. First, long term bi-directional causality was found between tourism competitiveness and quality of life. In other words, tourism not only positively impacts quality of life, but high levels of quality of life have positive influence on tourism competitiveness in the Central American region. This is a major contribution as such assumptions have been mainly hypothesized. Second, economic freedom was found to act as a moderating variable between tourism competitiveness and quality of life. This finding allows us to further understand what impact such relationship between tourism competitiveness and quality of life. Third, economic freedom was found not to have an impact on quality of life as originally thought. However, quality of life was found to have a short-term impact on economic freedom. Finally, economic freedom had a bi-directional relationship with tourism competitiveness. This is a major contribution as such relationship was not previously discussed in the academic literature. The theoretical implication of this study is in terms of combining the capability approach and the competitiveness theory. In terms of managerial implications, governments of the Central American region can work on strategies, such as marketing, to promote tourism which in turn will improve residents' quality of life. At the same time, the government can work on improving residents' well-being while impacting tourism competitiveness.
Show less - Date Issued
- 2014
- Identifier
- CFE0005364, ucf:50476
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0005364
- Title
- Sustainability Assessment of Wind Energy for Buildings.
- Creator
-
Noori, Mehdi, Tatari, Mehmet, Oloufa, Amr, Nam, Boo Hyun, University of Central Florida
- Abstract / Description
-
Due to increasing concerns for global climate change, onshore and offshore wind energy technologies have stimulated a tremendous interest worldwide, and are considered as a viable solution to mitigate the environmental impacts related to electricity generation. Although wind energy technologies have been considered as one of the cleanest energy sources, they have a wide range of direct and indirect environmental impacts when the whole supply chain is considered. This study aims to quantify...
Show moreDue to increasing concerns for global climate change, onshore and offshore wind energy technologies have stimulated a tremendous interest worldwide, and are considered as a viable solution to mitigate the environmental impacts related to electricity generation. Although wind energy technologies have been considered as one of the cleanest energy sources, they have a wide range of direct and indirect environmental impacts when the whole supply chain is considered. This study aims to quantify the direct and indirect environmental impacts of onshore and offshore wind power technologies by tracing all of the economy-wide supply chain requirements. To accomplish this goal, we developed a comprehensive hybrid life cycle assessment (LCA) model in which process-based LCA model is combined with the economic input-output (EIO) analysis. The analysis results show that on average, concrete and steel and their supply chains are responsible for 37% and 24% of carbon footprint, consequently. On average, offshore wind turbines produce 48% less greenhouse gas emissions per kWh produced electricity than onshore wind turbines. For the onshore wind turbines, concrete, aggregates, and crushed stone approximately consume 95% of total water in this construction phase. On the other hand, concrete, lead, copper, and aggregate are responsible for around 90% of total water for the offshore wind turbines. It is also found that the more capacity the wind turbine has, the less environmental impact the wind turbine generates per kWh electricity. Moreover, based on the economic and environmental impacts of studied wind turbines and also three more nonrenewable energy sources, this study develops a decision making framework to understand the best energy source mix for a building in the state of Florida. This framework accounts for the uncertainty in the input material by deploying a Monte Carlo simulation approach. The results of decision making framework show that natural gas is a better option among nonrenewable sources. On the other hand, V90-3.0 MW offshore wind turbine is the best source of energy among renewable energy sources for a building.The findings of this research are critical for policy makers to understand the direct and indirect environmental impacts of different onshore and offshore wind energy systems. Also this study furnishes the decision maker with a range of possible energy mixes based on different economic and environmental weights.
Show less - Date Issued
- 2013
- Identifier
- CFE0005038, ucf:50017
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0005038
- Title
- The Contribution of School Counselors' Self-Efficacy and Professional Quality of Life to their Programmatic Service Delivery.
- Creator
-
Mullen, Patrick, Lambie, Glenn, Robinson, Edward, Van Horn, Stacy, Conley, Abigail, University of Central Florida
- Abstract / Description
-
The purpose of this investigation was to examine the directional relationship between practicing school counselors' level of professional quality of life and self-efficacy to their programmatic service delivery activities. This investigation tested the theoretical model that practicing school counselors' level of professional quality of life (as measured by the Professional Quality of Life Scale [ProQOLs; Stamm, 2010]) and their self-efficacy (as measured by the School Counselor Self-Efficacy...
Show moreThe purpose of this investigation was to examine the directional relationship between practicing school counselors' level of professional quality of life and self-efficacy to their programmatic service delivery activities. This investigation tested the theoretical model that practicing school counselors' level of professional quality of life (as measured by the Professional Quality of Life Scale [ProQOLs; Stamm, 2010]) and their self-efficacy (as measured by the School Counselor Self-Efficacy Scale [SCSEs; Bodenhorn (&) Skaggs, 2005]) contributes to their service delivery activity (as measured by the School Counselor Activity Rating Scale [SCARS; Scarborough, 2005]). Specifically, this study examined the hypothesized directional relationship that school counselors who have higher ProQOL scores (e.g., less burnout and compassion fatigue and higher compassion satisfaction) and higher self-efficacy scores (e.g., more confident about counseling skills) have increased levels of programmatic service delivery facilitation (e.g., they provide high levels of school counseling activities for students and stakeholders). In addition, this investigation examined the relationship between practicing school counselors' demographic factors and the constructs of professional quality of life, self-efficacy, and programmatic service delivery. Furthermore, the investigation examined the difference in response rate and school counselors' total mean score (as measured by the ProQOLs, SCSEs, and SCARS) based upon the: (a) sampling method (e.g., email web-based, paper-pencil mail-out survey, face-to-face survey administration), (b) token incentive type (e.g., monetary [$1.00, $2.00, or no incentive] or non-monetary [$1.00 donation to the American Red Cross or no donation]), and (c) sampling population (e.g., ASCA dataset or Common Core Dataset)?A review of the literature is presented, which provides conceptual theory and empirical research to support the constructs and their hypothesized relationship. A descriptive, correlational research design was employed to investigate the research hypothesis and exploratory research questions. The data was collected through diverse survey methodologies (e.g., email web-based, paper-pencil mail-out survey, face-to-face survey administration). The research hypothesis was tested through the utilization of structural equation modeling (SEM). In addition, multiple linear regression, spearmen rho correlation, Mann-Whitney U tests, Kruscal-Wallis H tests, and Chi Square tests of independence were used to analyze the data for the exploratory questions. The results of the investigation are presented and compared to current literature and prior research. Additionally, the limitations of the study are discussed and recommendations for future research are presented. Last, implications from this investigation are discussed in regards to practicing school counselors, school counselor educators, and school counseling researchers.The sample size for this investigation was 690 with 577 used for the data analysis after data cleaning. The results of the SEM analyses identified that practicing school counselors' professional quality of life contributed to their programmatic service delivery (1.21% of the variance explained). In addition, the results identified that practicing school counselors' self-efficacy contributed to their programmatic service delivery (34.81% of the variance explained). Furthermore, the analysis indicated that the covariance between professional quality of life and self-efficacy accounted for 26% of the shared variance between these two constructs of interest.Implications of the findings from the study include (a) school counselors' self-efficacy contributes to their programmatic service delivery (large effect size), (b) school counselors' professional quality of life and self-efficacy contribute to one another (medium to large effect size), and (c) school counselors' professional quality of life contributes to their service delivery (small effect size). Additionally, this study provides implications in regards to: (a) the psychometric properties of the ProQOLs, SCSEs, and SCARS with a national sample of practicing school counselors and (b) research methodology related to differences in school counselors' response rates and total mean score on the ProQOLs, SCSEs, and SCARS based upon the sampling method, incentive type, and sampling population.
Show less - Date Issued
- 2014
- Identifier
- CFE0005218, ucf:50627
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0005218
- Title
- PUBS, PUNTERS, AND PINTS: ANTHROPOLOGICAL REFLECTIONS ON PUB LIFE IN IRELAND.
- Creator
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Cucchiara, Jason, Matejowsky, Ty, University of Central Florida
- Abstract / Description
-
Ireland is a country with a rich and unique cultural heritage. It is difficult to imagine that certain facets of Irish culture (e.g. Saint Patrick's Day, the Blarney Stone, or the Ring of Kerry) can ever be taken for granted since they are so widely recognized internationally. One common feature of Irish life that possibly warrants more scholarly attention is the public house or pub. Much has been written about pubs as quaint institutions in popular literature and fiction. Curiously, they...
Show moreIreland is a country with a rich and unique cultural heritage. It is difficult to imagine that certain facets of Irish culture (e.g. Saint Patrick's Day, the Blarney Stone, or the Ring of Kerry) can ever be taken for granted since they are so widely recognized internationally. One common feature of Irish life that possibly warrants more scholarly attention is the public house or pub. Much has been written about pubs as quaint institutions in popular literature and fiction. Curiously, they remain largely overlooked as vital aspects of Irish culture by anthropologists and others in the social sciences. In many ways, socio-cultural research on pub life in Ireland is woefully under examined. In an effort to better evaluate the significance of traditional pub life to Irish culture, my thesis seeks to integrate and critically assess the existing socio-cultural literature on Irish pub life. Such work will not only help highlight both the commonalities and discrepancies within this area of study, it will more significantly identify those areas of Irish pub life that can benefit from further academic investigation. Two recent trips to Ireland in September 2004 and May 2006, allowed me to observe important aspects of pub life first hand. It became apparent from these encounters that, like the history of Ireland itself, local pubs have a rich historical foundation. Many of the pubs that I visited have been in existence or operational since the Middle Ages. Based on this longevity, one can reasonably argue that pubs in Ireland function largely as locales of social significance and cultural reproduction, not just centers of recreational drinking. Using my travel experience as a starting point for the critical analysis phase of this thesis project, I have developed three general research questions that I will explore to varying degrees in the context of this work. These are: (1) what are the origins of pubs in Ireland?; (2) what explicit and implicit functions do pubs serve in Irish communities?; and (3) what possible developments are likely to affect Irish pubs in the near and distant future?
Show less - Date Issued
- 2009
- Identifier
- CFE0002578, ucf:48255
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0002578
- Title
- Cosas de los Estados Unidos.
- Creator
-
Camacho, Simón
- Description
- The author Simón Camacho wrote the book under the pseudonym "Nazareno." Edited by James Durand. It contains letters and sketches covering the years 1856 to 1863. Includes the author's portrait, engraved by J.A. O'Neill from a photograph by Fredericks. Also contains a reproduction of the author's signature. Spine title: Cosas de los E. Unidos.
- Date Created
- 1864
- Identifier
- DP0010866, E166.C17 1864
- Format
- E-book
- PURL
- http://purl.flvc.org/ucf/fd/DP0010866
- Title
- ANTHONY NEWLEY: AN ACTOR'S ANALYSIS OF A MUSICAL THEATRE LEGACY.
- Creator
-
Layton, Christopher, Bell, John, University of Central Florida
- Abstract / Description
-
Letters of Life, Lust, and Love: The Music of Anthony Newley will be focused entirely on the writing, performance, and private life of Anthony Newley. The show's book will connect each of the musical numbers through a series of letters written to his mother, Frances "Gracie" Newley. This will serve as the dramatic through-line correlating both his professional and private lives. The actor in this piece will be performing as "Mr. Newley," and will intensely focus on his mannerisms and...
Show moreLetters of Life, Lust, and Love: The Music of Anthony Newley will be focused entirely on the writing, performance, and private life of Anthony Newley. The show's book will connect each of the musical numbers through a series of letters written to his mother, Frances "Gracie" Newley. This will serve as the dramatic through-line correlating both his professional and private lives. The actor in this piece will be performing as "Mr. Newley," and will intensely focus on his mannerisms and personality. Costume and make-up will also be used to augment his physicality. The actor will be accompanied by a pianist. Newley's unusual and innovative writing and performance abilities are often ones that are underestimated due to a smaller body of work. Further study would reveal the autobiographical inspiration behind his unique librettos, mastery of performance, and scope of abilities extending into both commercial and artistic areas of theatre. The writing is filled with social and economic issues, religious references, and metaphorical concepts inviting audiences to think. These productions were holding their own during the period of Styne, Bernstein, and the beginnings of Sondheim. Before and after the performance, observers will have a chance to peruse through a display consisting of posters, articles, photos, and other Newley memorabilia to supplement further understanding of the subject. Observers will leave with a fresh (if not entirely new) idea of the experiences that drove this remarkably talented showman to contributing his part in the American musical theatre spotlight.
Show less - Date Issued
- 2006
- Identifier
- CFE0000950, ucf:46759
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0000950
- Title
- An Investigation of College Student-Athletes' Mental Health Stigma, Help-Seeking Attitudes, Depression, Anxiety, and Life Stress Scores Using Structural Equation Modeling.
- Creator
-
Tabet, Saundra, Lambie, Glenn, Barden, Sejal, Taylor, Dalena, Wood, Eric, Jahani, Shiva, University of Central Florida
- Abstract / Description
-
The purpose of this study was to investigate the directional relationship between student-athletes' degree of mental health stigma, help-seeking attitudes, depression, anxiety, and life stress scores. This investigation tested the theoretical model that student-athletes' (N = 621) degree of mental health stigma (as measured by the Perceived Devaluation-Discrimination Scale (-) Adapted [PDD-A; Eisenberg et al., 2009]) contributed to their attitudes towards help-seeking (as measured by the...
Show moreThe purpose of this study was to investigate the directional relationship between student-athletes' degree of mental health stigma, help-seeking attitudes, depression, anxiety, and life stress scores. This investigation tested the theoretical model that student-athletes' (N = 621) degree of mental health stigma (as measured by the Perceived Devaluation-Discrimination Scale (-) Adapted [PDD-A; Eisenberg et al., 2009]) contributed to their attitudes towards help-seeking (as measured by the Attitudes Toward Seeking Professional Psychological Help (-) Short Form [ATSPPH-SF; Fisher (&) Farina, 1995]) and levels of depression (as measured by the Patient Health Questionnaire (-) 9 [PHQ-9; Kroenke et al., 2001]), anxiety (as measured by the Generalized Anxiety Disorder - 7 [GAD-7; Spitzer et al., 2006]), and life stress (as measured by the College Student-Athlete Life Stress Scale [CSALSS; Lu et al., 2012]). Specifically, the researcher tested the hypothesized directional relationship that student-athletes with a greater amount of mental health stigma would have (a) decreased positive help-seeking attitudes and (b) increased levels of depression, anxiety, and life stress. The results of the structural equation model (SEM) analyses identified that student-athletes' amount of mental health stigma contributed to help-seeking attitudes (25.6% of the variance), but not levels of depression (.16% of the variance), anxiety (.09% of the variance), or life stress (.81% of the variance). Specifically, student-athletes' degree of mental health stigma shared a strong negative relationship (-.506) with attitudes towards seeking professional psychological help. Further, the results identified that personal stigma mediates the relationship between public stigma and help-seeking attitudes. Implications of the findings include (a) greater knowledge of the importance student-athletes' mental health stigma and attitudes toward receiving help; (b) increased understanding for counselors of student-athletes mental health needs; and (c) insight into practices for institutions of higher education as they implement mental health initiatives within intercollegiate athletics.
Show less - Date Issued
- 2019
- Identifier
- CFE0007538, ucf:52597
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0007538
- Title
- PROFESSIONAL SCHOOL COUNSELORS' PERSPECTIVES ON THE EFFECTS OF MILITARY PARENTAL DEPLOYMENT ON SCHOOL-AGE CHILDREN AND ADOLESCENTS.
- Creator
-
McCloud, Cheryl, Robinson, E.H. Mike, University of Central Florida
- Abstract / Description
-
This qualitative study used an exploratory phenomenological approach to examine professional school counselors' perspectives on the effects of military parental deployment on school aged children and adolescents. The voices of school counselors who work with military connected children are absent from the literature. The research site was a professional counseling conference in Germany in the fall of 2010. Participants consisted of 12 professional school counselors who work with school-aged...
Show moreThis qualitative study used an exploratory phenomenological approach to examine professional school counselors' perspectives on the effects of military parental deployment on school aged children and adolescents. The voices of school counselors who work with military connected children are absent from the literature. The research site was a professional counseling conference in Germany in the fall of 2010. Participants consisted of 12 professional school counselors who work with school-aged children and adolescents who have experienced parental military deployment. Participants adopted pseudonyms though several indicated an affiliation with Department of Defense Dependent Schools (DODDS) and therefore offered their unique perspectives as school counselors living in military communities and working almost exclusively with military connected children and families. Data collection consisted of individual interviews with counselor participants. Data analysis consisted of coding meaningful words and phrases and yielded 33 preliminary categories that became new codes. Analysis of relationships between codes resulted in the emergence of four distinct themes: Military Life, Stages of Deployment, Role of the Counselor, and Children and Adolescents. Themes were supported by quotations of meaningful statements, thus participant voices provide thick, rich descriptions of the phenomenon. Validity strategies included peer debriefing, researcher positionality, and multiple examinations of the data set.
Show less - Date Issued
- 2011
- Identifier
- CFE0004046, ucf:49128
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0004046
- Title
- Environmental Study of Solid Waste Collection.
- Creator
-
Maimoun, Mousa, Reinhart, Debra, Mccauley Bush, Pamela, Cooper, Charles, University of Central Florida
- Abstract / Description
-
The growing municipal solid waste generation rates have necessitated more efficient, optimized waste collection facilities. The majority of the US collection fleet is composed of diesel-fueled vehicles which contribute significant atmospheric emissions including greenhouse gases. In order to reduce emissions to the atmosphere, more collection agencies are investigating alternative fuel technologies such as natural gas, biofuels (bio-gas and bio-diesel), and hybrid electric technology. This...
Show moreThe growing municipal solid waste generation rates have necessitated more efficient, optimized waste collection facilities. The majority of the US collection fleet is composed of diesel-fueled vehicles which contribute significant atmospheric emissions including greenhouse gases. In order to reduce emissions to the atmosphere, more collection agencies are investigating alternative fuel technologies such as natural gas, biofuels (bio-gas and bio-diesel), and hybrid electric technology. This research is an in-depth environmental analysis of potential alternative fuel technologies for waste collection vehicles.This study will evaluate the use of alternative fuels by waste collection vehicles. Life-cycle emissions, cost, fuel and energy consumption were evaluated for a wide range of fossil and bio-fuel technologies. Moreover, the energy consumption and the tail-pipe emissions of diesel-fueled waste collection vehicles were estimated using MOVES 2010a software. Emission factors were calculated for a typical waste collection driving cycle as well as constant speed. Finally, the selection of fuel type by the waste collection industry requires consideration of environmental, security, financial, operational, and safety issues. In this study, a qualitative comparison between alternative fuels was performed; a multifactorial assessment of these factors was conducted taking into account the opinion of the waste collection industry of the importance of each factor.Liquid-petroleum fuels have higher life-cycle emissions compared to natural gas; however landfill natural gas has the lowest life-cycle emissions compared to all other fuel categories. Compressed natural gas waste collection vehicles have the lowest fuel cost per collection vehicle mile travel compared to other fuel categories. Moreover, the actual driving cycle of waste collection vehicles consists of repetitive stops and starts during waste collection; this generates more emissions than constant speed driving. Finally, the multifactorial assessment indicates that natural gas and landfill gas have better environmental, economical, and energy security performance than current liquid-petroleum fuels.
Show less - Date Issued
- 2011
- Identifier
- CFE0004133, ucf:49115
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0004133
- Title
- Sustainability Analysis of Intelligent Transportation Systems.
- Creator
-
Ercan, Tolga, Tatari, Mehmet, Al-Deek, Haitham, Oloufa, Amr, University of Central Florida
- Abstract / Description
-
Commuters in urban areas suffer from traffic congestion on a daily basis. The increasing number of vehicles and vehicle miles traveled (VMT) are exacerbating this congested roadway problem for society. Although literature contains numerous studies that strive to propose solutions to this congestion problem, the problem is still prevalent today. Traffic congestion problem affects society's quality of life socially, economically, and environmentally. In order to alleviate the unsustainable...
Show moreCommuters in urban areas suffer from traffic congestion on a daily basis. The increasing number of vehicles and vehicle miles traveled (VMT) are exacerbating this congested roadway problem for society. Although literature contains numerous studies that strive to propose solutions to this congestion problem, the problem is still prevalent today. Traffic congestion problem affects society's quality of life socially, economically, and environmentally. In order to alleviate the unsustainable impacts of the congested roadway problem, Intelligent Transportation Systems (ITS) has been utilized to improve sustainable transportation systems in the world. The purpose of this thesis is to analyze the sustainable impacts and performance of the utilization of ITS in the United States. This thesis advances the body of knowledge of sustainability impacts of ITS related congestion relief through a triple bottom line (TBL) evaluation in the United States. TBL impacts analyze from a holistic perspective, rather than considering only the direct economic benefits. A critical approach to this research was to include both the direct and the indirect environmental and socio-economic impacts associated with the chain of supply paths of traffic congestion relief. To accomplish this aim, net benefits of ITS implementations are analyzed in 101 cities in the United States. In addition to the state level results, seven metropolitan cities in Florida are investigated in detail among these 101 cities. For instance, the results of this study indicated that Florida saved 1.38 E+05 tons of greenhouse gas emissions (tons of carbon dioxide equivalent), $420 million of annual delay reduction costs, and $17.2 million of net fuel-based costs. Furthermore, to quantify the relative impact and sustainability performance of different ITS technologies, several ITS solutions are analyzed in terms of total costs (initial and operation (&) maintenance costs) and benefits (value of time, emissions, and safety). To account for the uncertainty in benefit and cost analyses, a fuzzy-data envelopment analysis (DEA) methodology is utilized instead of the traditional DEA approach for sustainability performance analysis. The results using the fuzzy-DEA approach indicate that some of the ITS investments are not efficient compared to other investments where as all of them are highly effective investments in terms of the cost/benefit ratios approach. The TBL results of this study provide more comprehensive picture of socio-economic benefits which include the negative and indirect indicators and environmental benefits for ITS related congestion relief. In addition, sustainability performance comparisons and TBL analysis of ITS investments contained encouraging results to support decision makers to pursue ITS projects in the future.
Show less - Date Issued
- 2013
- Identifier
- CFE0004994, ucf:49549
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0004994
- Title
- Determinants of Health-related Quality of Life of Patients with End-stage Renal Disease.
- Creator
-
Varghese, Shabu, Dziegielewski, Sophia, Burg, Mary Ann, Zhang, Ning, Jacinto, George, University of Central Florida
- Abstract / Description
-
End-stage Renal Disease (ESRD) or Chronic Kidney Disease (CKD) constitutes a serious public health problem in the United States. According to the United States Renal Data System (USRDS), in 2013, Medicare spending alone accounts for $30.9 billion for the treatment-related expenses for ESRD. The purpose of this study was to examine the causal relationship of two important determinants, perceived social support and treatment adherence with health-related quality of life (HRQOL) of ESRD patients...
Show moreEnd-stage Renal Disease (ESRD) or Chronic Kidney Disease (CKD) constitutes a serious public health problem in the United States. According to the United States Renal Data System (USRDS), in 2013, Medicare spending alone accounts for $30.9 billion for the treatment-related expenses for ESRD. The purpose of this study was to examine the causal relationship of two important determinants, perceived social support and treatment adherence with health-related quality of life (HRQOL) of ESRD patients. Using the health belief model and Bandura's self-efficacy theory, the study explained the theoretical underpinnings of the causal relationships of the patient's perspectives of perceived social support and treatment adherence in predicting the HRQOL of ESRD patients. The study utilized a non-experimental research design and the statistical tool Structural Equation Modeling (SEM), in evaluating the causal relationships between the variables. With a convenience sample size of 413 ESRD patients from the Central West region of Florida, the findings of the study validated a statistically significant relationship between perceived social support and HRQOL as well as between perceived social support and treatment adherence in ESRD patients. However, the study didn't find any significant relationships between treatment adherence and HRQOL. The results of the study enhanced the body of knowledge relating to HRQOL of ESRD patients, provided foundation for interventions and policy formation in improving the HRQOL of patients with ESRD.
Show less - Date Issued
- 2016
- Identifier
- CFE0006512, ucf:51366
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0006512
- Title
- Life-cycle Greenhouse Gas Emissions and Water Footprint of Residential Waste Collection and Management Systems.
- Creator
-
Maimoun, Mousa, Reinhart, Debra, McCauley, Pamela, Cooper, David, University of Central Florida
- Abstract / Description
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Three troublesome issues concerning residential curbside collection (RCC) and municipal solid waste (MSW) management systems in the United States motivated this research. First, reliance upon inefficient collection and scheduling procedures negatively affect RCC efficiency, greenhouse gas (GHG) emissions, and cost. Second, the neglected impact of MSW management practices on water resources. Third, the implications of alternative fuels on the environmental and financial performance of waste...
Show moreThree troublesome issues concerning residential curbside collection (RCC) and municipal solid waste (MSW) management systems in the United States motivated this research. First, reliance upon inefficient collection and scheduling procedures negatively affect RCC efficiency, greenhouse gas (GHG) emissions, and cost. Second, the neglected impact of MSW management practices on water resources. Third, the implications of alternative fuels on the environmental and financial performance of waste collection where fuel plays a significant rule. The goal of this study was to select the best RCC program, MSW management practice, and collection fuel. For this study, field data were collected for RCC programs across the State of Florida. The garbage and recyclables generation rates were compared based on garbage collection frequency and use of dual-stream (DS) or single-stream (SS) recyclables collection system. The assessment of the collection programs was evaluated based on GHG emissions, while for the first time, the water footprint (WFP) was calculated for the most commonly used MSW management practices namely landfilling, combustion, and recycling. In comparing alternative collection fuels, two multi-criteria decision analysis (MCDA) tools, TOPSIS and SAW, were used to rank fuel alternatives for the waste collection industry with respect to a multi-level environmental and financial decision matrix. The results showed that SS collection systems exhibited more than a two-fold increase in recyclables generation rates, and a ~2.2-fold greater recycling efficiency compared to DS. The GHG emissions associated with the studied collection programs were estimated to be between 36 and 51 kg CO2eq per metric ton of total household waste (garbage and recyclables), depending on the garbage collection frequency, recyclables collection system (DS or SS) and recyclables compaction. When recyclables offsets were considered, the GHG emissions associated with programs using SS were estimated between -760 and -560, compared to between -270 and -210 kg CO2eq per metric ton of total waste for DS programs. In comparing the WFP of MSW management practices, the results showed that the WFP of waste landfilling can be reduced through implementing bioreactor landfilling. The WFP of electricity generated from waste combustion was less than the electricity from landfill gas. Overall, the WFP of electricity from MSW management practices was drastically less than some renewable energy sources. In comparing the WFP offsets of recyclables, the recycling of renewable commodities, e.g. paper, contributed to the highest WFP offsets compared to other commodities, mainly due to its raw material acquisition high WFPs. This suggests that recycling of renewable goods is the best management practice to reduce the WFP of MSW management. Finally, the MCDA of alternative fuel technologies revealed that diesel is still the best option, followed by hydraulic-hybrid waste collection vehicles (WCVs), then landfill gas (LFG) sourced natural gas, fossil natural gas and biodiesel. The elimination of the fueling station criterion from the financial criteria ranked LFG-sourced natural gas as the best option; suggesting that LFG sourced natural gas is the best alternative to fuel WCV when accessible. In conclusion, field data suggest that RCC system design can significantly impact recyclables generation rate and efficiency, and consequently determine environmental and economic impact of collection systems. The WFP concept was suggested as a method to systematically assess the impact of MSW management practices on water resources. A careful consideration of the WFP of MSW management practices and energy recovered from MSW management facilities is essential for the sustainable appropriation of water resources and development.
Show less - Date Issued
- 2015
- Identifier
- CFE0005656, ucf:50174
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0005656
- Title
- Life Cycle Sustainability Assessment Framework for the U.S. Built Environment.
- Creator
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Kucukvar, Murat, Tatari, Mehmet, Oloufa, Amr, Behzadan, Amir, Al-Deek, Haitham, Pazour, Jennifer, University of Central Florida
- Abstract / Description
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The overall goals of this dissertation are to investigate the sustainability of the built environment, holistically, by assessing its Triple Bottom Line (TBL): environmental, economic, and social impacts, as well as propose cost-effective, socially acceptable, and environmentally benign policies using several decision support models. This research is anticipated to transform life cycle assessment (LCA) of the built environment by using a TBL framework, integrated with economic input-output...
Show moreThe overall goals of this dissertation are to investigate the sustainability of the built environment, holistically, by assessing its Triple Bottom Line (TBL): environmental, economic, and social impacts, as well as propose cost-effective, socially acceptable, and environmentally benign policies using several decision support models. This research is anticipated to transform life cycle assessment (LCA) of the built environment by using a TBL framework, integrated with economic input-output analysis, simulation, and multi-criteria optimization tools. The major objectives of the outlined research are to (1) build a system-based TBL sustainability assessment framework for the sustainable built environment, by (a) advancing a national TBL-LCA model which is not available for the United States of America; (b) extending the integrated sustainability framework through environmental, economic, and social sustainability indicators; and (2) develop a system-based analysis toolbox for sustainable decisions including Monte Carlo simulation and multi-criteria compromise programming. When analyzing the total sustainability impacts by each U.S. construction sector, (")Residential Permanent Single and Multi-Family Structures" and "Other Non-residential Structures" are found to have the highest environmental, economic, and social impacts compared to other construction sectors. The analysis results also show that indirect suppliers of construction sectors have the largest sustainability impacts compared to on-site activities. For example, for all U.S. construction sectors, on-site construction processes are found to be responsible for less than 5 % of total water consumption, whereas about 95 % of total water use can be attributed to indirect suppliers. In addition, Scope 3 emissions are responsible for the highest carbon emissions compared to Scope 1 and 2. Therefore, using narrowly defined system boundaries by ignoring supply chain-related impacts can result in underestimation of TBL sustainability impacts of the U.S. construction industry.Residential buildings have higher shares in the most of the sustainability impact categories compared to other construction sectors. Analysis results revealed that construction phase, electricity use, and commuting played important role in much of the sustainability impact categories. Natural gas and electricity consumption accounted for 72% and 78% of the total energy consumed in the U.S. residential buildings. Also, the electricity use was the most dominant component of the environmental impacts with more than 50% of greenhouse gases emitted and energy used through all life stages. Furthermore, electricity generation was responsible for 60% of the total water withdrawal of residential buildings, which was even greater than the direct water consumption in residential buildings. In addition, construction phase had the largest share in income category with 60% of the total income generated through residential building's life cycle. Residential construction sector and its supply chain were responsible for 36% of the import, 40% of the gross operating surplus, and 50% of the gross domestic product. The most sensitive parameters were construction activities and its multiplier in most the sustainability impact categories.In addition, several emerging pavement types are analyzed using a hybrid TBL-LCA framework. Warm-mix Asphalts (WMAs) did not perform better in terms of environmental impacts compared to Hot-mix Asphalt (HMA). Asphamin(&)#174; WMA was found to have the highest environmental and socio-economic impacts compared to other pavement types. Material extractions and processing phase had the highest contribution to all environmental impact indicators that shows the importance of cleaner production strategies for pavement materials. Based on stochastic compromise programming results, in a balanced weighting situation, Sasobit(&)#174; WMA had the highest percentage of allocation (61%), while only socio-economic aspects matter, Asphamin(&)#174; WMA had the largest share (57%) among the WMA and HMA mixtures. The optimization results also supported the significance of an increased WMA use in the United States for sustainable pavement construction. Consequently, the outcomes of this dissertation will advance the state of the art in built environment sustainability research by investigating novel efficient methodologies capable of offering optimized policy recommendations by taking the TBL impacts of supply chain into account. It is expected that the results of this research would facilitate better sustainability decisions in the adoption of system-based TBL thinking in the construction field.
Show less - Date Issued
- 2013
- Identifier
- CFE0005018, ucf:50007
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0005018