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- Title
- THE LACK OF DIVERSITY ON THE BENCH IN FLORIDA'S STATE COURTS.
- Creator
-
Wells, Verlinda, Handberg, Roger, University of Central Florida
- Abstract / Description
-
Diversity in the judiciary is essential to ensure impartiality, public confidence, and the perception that all members of society are represented on the bench. Minorities and women are significantly underrepresented as judges in Florida in proportion to their numbers in the general population. Because we live in an increasingly global world, diversity is best described when people of different races, colors, ethnicity and genders work to develop a mutual respect for each other. It was...
Show moreDiversity in the judiciary is essential to ensure impartiality, public confidence, and the perception that all members of society are represented on the bench. Minorities and women are significantly underrepresented as judges in Florida in proportion to their numbers in the general population. Because we live in an increasingly global world, diversity is best described when people of different races, colors, ethnicity and genders work to develop a mutual respect for each other. It was important to use diversity in this research because it required recognition, understanding, and acceptance of the special contribution that each member of a group can make. The documentation review method was used to measure the data collected in this research. The advantages for using this method were first, to obtain comprehensive and historical information that already exists and secondly, to obtain data which demonstrates few biases about the information. I used correlation as a non-experimental, description method because the variables are not directly manipulated, as they would be if used in an experimental method. This method of research is really more of a mathematical technique for summarizing data. This study was designed to determine the degree and direction of relationship between two or more variables or measures of behavior. Diversity in 2004 judicial appointments is a high priority in Florida's present administration. Their goal is to have a judicial system composed of judges who reflect the people they serve. Since judges have so much influence over the lives of people of the state, it is important that all Floridians perceive the judiciary legitimate. Having a diverse judiciary serves the goal. The Bush/Jennings team appointed; 1) the first African American woman, Judge Peggy Quince to the Florida Supreme Court (with the agreement of Governor Lawton Chiles); 2) minorities to 53 judicial positions including the first Hispanic Supreme Court Justice Raoul Cantero to the Supreme Court; 3) 26 African American, 26 Hispanics, 1 other); 4) women to 66 judicial position; and, 5) the first Haitian-American judge, Judge Fred Seraphin to the Miami Dade County Court. The judicial system has an obligation to provide equal opportunity to the extent that females, minorities, and people of color have the temperament, the legal educational background, the skills, and the abilities necessary to sit on Florida's bench. The legal profession also has an obligation to encourage more minorities and women to consider a career in law. The governor's most recent selections indicate that he is serious about improving diversity on the Florida bench.
Show less - Date Issued
- 2004
- Identifier
- CFE0000206, ucf:46261
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0000206
- Title
- Can mutual trust explain the diversity-performance relationship? A meta-analysis.
- Creator
-
Feitosa Pereira, Jennifer, Salas, Eduardo, Joseph, Dana, Fritzsche, Barbara, Burke, Shawn, University of Central Florida
- Abstract / Description
-
Trust is gaining attention for its benefits to both teams and organizations as a whole (Fulmer (&) Gelfand, 2012). The difficulty of building it in comparison to the ease of destroying it calls for a deeper understanding of trust, as well as its relationship with critical team outcomes (Colquitt, LePine, Piccolo, Zapata, (&) Rich, 2012). Unfortunately, current research has progressed in a disjointed manner that requires the integration of findings before a more parsimonious and descriptive...
Show moreTrust is gaining attention for its benefits to both teams and organizations as a whole (Fulmer (&) Gelfand, 2012). The difficulty of building it in comparison to the ease of destroying it calls for a deeper understanding of trust, as well as its relationship with critical team outcomes (Colquitt, LePine, Piccolo, Zapata, (&) Rich, 2012). Unfortunately, current research has progressed in a disjointed manner that requires the integration of findings before a more parsimonious and descriptive understanding of trust at the team-level can be developed. Beyond this basic understanding, research is needed to explore the nature of trust in teams comprised of diverse members, as multi-national, multi-cultural, and interdisciplinary teams are increasingly characterizing the modern landscape. Thus, this article uses meta-analytic techniques to examine the extent to which mutual trust can serve as an underlying mechanism that drives the diversity-team performance relationship. First, surface-level and deep-level diversity characteristics varied in their impact on trust. Value diversity emerged as the most detrimental, along with the moderating effect of time. Second, 95 independent samples comprising 5,721 teams emphasized the importance of trust to team performance with a moderate and positive relationship. Third, mediation analyses answered recent calls (e.g., van Knippenberg (&) Schippers, 2007) to examine underlying mechanisms that can explain the diversity-outcomes relationship. This showed age, gender, value, and function diversity to be related to performance through mutual trust. Furthermore, this study explores whether contextual (e.g., team distribution) as well as measurement (e.g., referent) issues pose systematic differences in the diversity-trust and trust-performance relationships. Surprisingly, the construct of trust at the team-level proved to be generalizable across a number of unique conditions. In addition to this extensive quantitative review, implications and future research are discussed.
Show less - Date Issued
- 2015
- Identifier
- CFE0005792, ucf:50070
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0005792
- Title
- PARENTAL INVOLVEMENT: TEACHERS' AND PARENTS' VOICES.
- Creator
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Shearer, Karen, Brown, Susan, University of Central Florida
- Abstract / Description
-
Parents have been involved in the education of their children since the early days of our nation. Their roles have evolved from teaching the basics of reading writing and arithmetic in Colonial times to overseeing the selection of teachers and designing the curriculum during the early 1800s to providing academic support in the home up through the present time. Although educators are generally viewed as professionals and in charge of their students' education, the importance of parental...
Show moreParents have been involved in the education of their children since the early days of our nation. Their roles have evolved from teaching the basics of reading writing and arithmetic in Colonial times to overseeing the selection of teachers and designing the curriculum during the early 1800s to providing academic support in the home up through the present time. Although educators are generally viewed as professionals and in charge of their students' education, the importance of parental involvement is readily acknowledged. Confusing to both parents and educators is what constitutes parental involvement. The research revealed numerous definitions for the term, but none that were universally agreed upon. This lack of a clear delineation of roles has both parties struggling to make sense of their separate and joint responsibilities. Add to this confusion the complex issues surrounding linguistic and cultural diversity and both sides become mired in their differences rather than building upon their commonalities. Barriers to parental involvement can come from the family as well as the school. The purpose of this study was to examine those barriers from the perspective of educators as well as parents. A convenience sample was taken from the population of elementary schools in a Central Florida county. Parents of students from ethnic minorities were asked to complete a survey questionnaire regarding their experiences with the classroom teacher as well as involvement in their child's education. Elementary school teachers from the same county were given the opportunity to respond to an online survey questionnaire regarding their attitudes about cultural and language diversity and parental engagement at school and with learning. Five hundred and fifty parent surveys and one hundred sixty-six teacher surveys were completed. The data analysis will show which factors influence parent involvement and how similarly parents and teachers feel about parent involvement.
Show less - Date Issued
- 2006
- Identifier
- CFE0001506, ucf:47127
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0001506
- Title
- Employee Perceptions of Diversity Management in the Hospitality and Tourism Industry: Scale Development and Model Testing.
- Creator
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Mistry, Trishna, Okumus, Fevzi, Torres Areizaga, Edwin, Orlowski, Marissa, Madera, Juan, University of Central Florida
- Abstract / Description
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The purpose of this dissertation is to create a holistic diversity management measurement scale and to analyze the impact of diversity management on employees' attitudes and behavior in the hospitality and tourism industry. Effective diversity management can have a multitude of positive outcomes in the hospitality and tourism industry. However, there is little research conducted regarding the direct and indirect impacts of diversity management on the attitudes and behavior of hospitality and...
Show moreThe purpose of this dissertation is to create a holistic diversity management measurement scale and to analyze the impact of diversity management on employees' attitudes and behavior in the hospitality and tourism industry. Effective diversity management can have a multitude of positive outcomes in the hospitality and tourism industry. However, there is little research conducted regarding the direct and indirect impacts of diversity management on the attitudes and behavior of hospitality and tourism industry employees. This dissertation used a mixed-method approach to create a measurement scale to evaluate diversity management practices for the hospitality and tourism field. The first study of this dissertation included a scale development process using a qualitative and then a quantitative phase. Literature review and semi-structured interviews were conducted for developing the items for the diversity management scale. These items were then refined to finalize the diversity management measurement scale through a quantitative phase using exploratory factor analyses. The impact of diversity management on hospitality and tourism industry employees' job performance, service innovation behavior, and engagement were analyzed through a quantitative study using this measurement instrument. Structural equation modeling was used to test the hypothesized research model. The present research is the first of its kind in the hospitality and tourism field. The measurement scale developed in this study will expand the boundaries of diversity management research in the hospitality and tourism industry. This current research further establishes a link between diversity management and positive employee-related outcomes in the hospitality and tourism industry. The assessment of these relationships should extend the literature and open new models of academic research with additional organizational outcomes. Leaders in the hospitality and tourism industry can gain vital insight regarding the importance of effective diversity management through the study results.
Show less - Date Issued
- 2019
- Identifier
- CFE0007688, ucf:52468
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0007688
- Title
- THE COST OF BEING ME: ASSESSING THE CONSEQUENCES OF COMPLIANCE WITH PERCEIVED PRESSURE TO ASSIMILATE IN WORK ROLES.
- Creator
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Phillips, Tangela, Jones, Foard, University of Central Florida
- Abstract / Description
-
Acculturation refers to the process of change and adaptation that occurs between members of cultural groups, especially when one or more minority groups merge with the majority (Berry, 1980). In order to effectively manage diversity, organizational leaders are beginning to realize the importance of understanding the dynamics associated with cross cultural interactions in the workplace. This dissertation focuses on the acculturation mode of assimilation relative to the experiences of 101...
Show moreAcculturation refers to the process of change and adaptation that occurs between members of cultural groups, especially when one or more minority groups merge with the majority (Berry, 1980). In order to effectively manage diversity, organizational leaders are beginning to realize the importance of understanding the dynamics associated with cross cultural interactions in the workplace. This dissertation focuses on the acculturation mode of assimilation relative to the experiences of 101 African Americans employed in faculty and staff positions in colleges and universities located in the Southeastern United States. Specifically, the moderating role of ethnic identity on the relation between perceived pressure to assimilate and compliance, and the relations between compliance and both work stress and turnover intentions were assessed. The concept of perceived pressure to assimilate in organizations suggests that employees perceive that they are expected to deny their ethnic identities, or at least their expression, at work in order to conform to the norms of the organization. However, for employees with strong ethnic identities, their ethnicity is an essential component of their self-concept and pressure to deny that aspect of themselves may result in a conflict where they must decide whether to comply or to leave the organization. A Model of the Individual Consequences of Assimilation Pressure is presented based upon the Role Taking Model (Katz & Kahn, 1978), the Model of the Effects of Culture on Role Behavior (Stone-Romero, Stone and Salas, 2003), the Acculturation Typology (Berry, 1980), and the Model of Social Influence (Kelman, 1958). The participants completed questionnaires designed to assess the following constructs: perceived pressure to assimilate, ethnic identity, compliance, work stress, and turnover intentions. In order to obtain an additional assessment of compliance, the primary participants' compliance behavior was rated by their coworkers. As hypothesized, the results supported a positive relation between compliance and work stress. The other hypothesized relations were not supported. The implications of these results, a discussion of the study's limitations, and directions for future research are presented.
Show less - Date Issued
- 2008
- Identifier
- CFE0002499, ucf:47692
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0002499
- Title
- ANALYZING CHILDREN'S LITERATURE AWARDS, LITERARY CRITERIA, AND DISTRICT DEMOGRAPHICS TO CREATE A DIVERSE AND INCLUSIVE ELEMENTARY SCHOOL CLASSROOM LIBRARY.
- Creator
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Lavallee, Casey L, Trimble Spalding, Lee-Anne, University of Central Florida
- Abstract / Description
-
Future elementary school teachers are tasked with the responsibility to ensure that the children in their classrooms have access to high quality books every day. This can be accomplished by building classroom libraries with titles that are not only of high literary quality but are also inclusive of the students in the classroom as well as the people these children will encounter outside of the classroom. Children should be able to see themselves represented in the literature they read, and...
Show moreFuture elementary school teachers are tasked with the responsibility to ensure that the children in their classrooms have access to high quality books every day. This can be accomplished by building classroom libraries with titles that are not only of high literary quality but are also inclusive of the students in the classroom as well as the people these children will encounter outside of the classroom. Children should be able to see themselves represented in the literature they read, and they should also be able to develop empathy for people who are different than they are. Diverse literature can have a huge impact on children and their outlook on themselves and the world. Because of the importance of quality diverse books for young children, this thesis outlines the resources, such as the plethora of children's literature awards for diverse books, that are available to teachers. It also includes a checklist for teachers to follow as they build their classroom libraries. This checklist helps teachers ensure that the books they choose meet the needs of the diverse population in their class. Once teachers know the resources available to them, they have a checklist that they can follow to build or evaluate their library, and they are aware of the diverse populations represented in their districts, schools, and classes, they are able to create an inclusive and impactful collection of books for their students.
Show less - Date Issued
- 2018
- Identifier
- CFH2000426, ucf:45813
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFH2000426
- Title
- GENETIC DIFFERENTIATION AMONG FLORIDA POPULATIONS OF DIADEMA ANTILLARUM.
- Creator
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Chandler, Luke M, Hoffman, Eric, University of Central Florida
- Abstract / Description
-
This project used molecular genetic markers (microsatellites) to determine the amount of genetic diversity within populations and whether significant differentiation exists among Florida populations of the long-spined sea urchin, Diadema antillarum. Specifically, this project aimed to (1) compare genetic diversity of D. antillarum from six populations in south Florida ranging from Biscayne Bay, the Florida Keys, and Dry Tortugas, and (2) determine whether two broodstock populations of D....
Show moreThis project used molecular genetic markers (microsatellites) to determine the amount of genetic diversity within populations and whether significant differentiation exists among Florida populations of the long-spined sea urchin, Diadema antillarum. Specifically, this project aimed to (1) compare genetic diversity of D. antillarum from six populations in south Florida ranging from Biscayne Bay, the Florida Keys, and Dry Tortugas, and (2) determine whether two broodstock populations of D. antillarum contain variation indicative of native Florida populations. Together, these questions can address whether broodstock populations contain the genetic variation necessary to meet the Florida Fish and Wildlife Conservation Commission�s (FWC�s) genetic policies for reintroduction throughout south Florida. Global FST among native populations was 0.0004 with a highest pairwise FST of 0.0025 between the Upper Keys and the area west of Key West, showing an overall trend of little natural differentiation between populations. Global FST for all populations inclusive of the broodstock samples was 0.0019 with a highest pairwise FST between a native population and broodstock of 0.0066 between Dry Tortuga and Mote�s broodstock, indicating little differentiation resulting from captive breeding. Average allelic richness and heterozygosity ranged from 22.6�24.4 and 0.937�0.956, respectively, for each population. Two-way ANOVAs comparing genetic diversity between native and broodstock populations showed no statistical difference in allelic richness (F= 3.892, p= 0.0535) or heterozygosity (F=1.43, p=0.237). The computer program STRUCTURE estimated the most likely number of genetic clusters to be k=1, inclusive of broodstock populations, further indicating a lack of differentiation either among native populations or between native and broodstock populations. These data suggest that captive-bred individuals of D. antillarum could be used for reintroduction as part of a plan to re-establish healthy urchin populations throughout the Florida Keys.
Show less - Date Issued
- 2016
- Identifier
- CFH2000044, ucf:45558
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFH2000044
- Title
- An examination of beta diversity indices and their predictors in two large-scale systems.
- Creator
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Schroeder, Philip, Jenkins, David, King, Joshua, Fedorka, Kenneth, Myers, Jonathan, University of Central Florida
- Abstract / Description
-
Biodiversity is what conservation biology was developed to conserve. It is the physical manifestation of life as a concept and, be it for practical or idealistic reasons, all conservationists seek to protect or, in some cases, enhance it. Because of its monolithic importance to the field, much effort has been expended trying to better measure and understand it. Recently, greater attention has been paid to the partition of diversity; the observation that the total diversity of a system (?) can...
Show moreBiodiversity is what conservation biology was developed to conserve. It is the physical manifestation of life as a concept and, be it for practical or idealistic reasons, all conservationists seek to protect or, in some cases, enhance it. Because of its monolithic importance to the field, much effort has been expended trying to better measure and understand it. Recently, greater attention has been paid to the partition of diversity; the observation that the total diversity of a system (?) can be broken down into within-site diversity (?) and between-site diversity (?). In particular, it has been noticed that the ? component of diversity is not as well studied or understood as the ? component. In this study I attempt to address this shortfall, by examining two questions: (1) how is ? is best measured and (2) what drives ?? To answer the first question, I look to find the measure of ? that is most robust to sampling error. While many ? indices have been proposed, few have considered how our methods of data gathering might affect those indices. Datasets collected from the real world will all likely have some sort of error within them as a result of the way they were sampled. Those errors will affect some indices more than others, and the indices that are least affected will be the most reliable for actual data. Once robust indices were identified, I used them to identify possible predictors of ? in two large, national datasets. The first dataset was the National Lakes Assessment created by the USEPA, in which diatoms were sampled from over 1000 lakes across the country. The second was the eBird dataset from the Cornell Lab of Ornithology, which used citizen science to generate a continuous dataset spanning both the last decade and the boundaries of the conterminous United States. ? calculated from these sources was regressed against relevant environmental variables to create a clearer understanding of the effects of the environment on the ? of two very different ecological systems.
Show less - Date Issued
- 2018
- Identifier
- CFE0007367, ucf:52088
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0007367
- Title
- STATE LEGISLATURES: DIVERSITY, INNOVATION, AND POLICY ADOPTION.
- Creator
-
Souvorova, Janna, Martin, Lawrence, University of Central Florida
- Abstract / Description
-
The question of policy origination is the very essence of state public policy analysis. This study provides an overview of the previous research on innovation, as defined by Rogers (1962, 2003) and Walker (1969), and determinants models of state policy formulation, as they relate to innovation and policy adoption on the state level. The literature review indicates that previous research mostly focused on the internal state characteristics such as political and socioeconomic variables to...
Show moreThe question of policy origination is the very essence of state public policy analysis. This study provides an overview of the previous research on innovation, as defined by Rogers (1962, 2003) and Walker (1969), and determinants models of state policy formulation, as they relate to innovation and policy adoption on the state level. The literature review indicates that previous research mostly focused on the internal state characteristics such as political and socioeconomic variables to explain state differences in policy adoption. The literature also indicates a general lack of empirical research relating diversity to innovation and policy adoption. State governments have to deal with diversified populations and workforces whether they want to or not. The number of immigrants from other countries as well as migrants from other states is constantly growing. For instance, in just the five years from 2000 to 2005, we added almost 5.5 million immigrants, and that figure represents only those who are documented. These people are coming from all over the world. They speak different languages, are accustomed to different foods, and have different religious affiliations. It would be unrealistic to expect them to have social and political values similar to those of people born and raised in the United States. The impact and the overall influence of such diversity on state policy formulation have not yet been fully explained. The growing importance of diversity in the United States calls for its inclusion into state policy adoption models. This study proposes a new model including a construct of diversity as one of the determinants of state policy adoption. The reasoning for the new model is twofold: first, to determine the potential influence of diversity on innovation, and second, to determine whether diversity also influences state policy adoption. Structural Equation Modeling (SEM) is used to test the proposed model in five different policy areas: education, health care, criminal justice, economic development, and environmental policies. Results of the analysis indicate that, while state diversity is positively associated with state innovation and state policy adoption, inclusion of state socioeconomic and political variables in the analysis decreases the relative influence of state diversity on innovation and policy outcomes. Furthermore, the relative influence of diversity, socioeconomic, and political variables differs among the policy areas used in this study. Three major themes are noticed here: the overwhelming significance of state political characteristics to state innovation, the relatively moderate significance of state socioeconomic characteristics to state policy outcomes and state innovation, and the low significance of state diversity variables to state policy outcomes.
Show less - Date Issued
- 2011
- Identifier
- CFE0003726, ucf:48791
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0003726
- Title
- Grandma got passed over by a manager: The intersection of age and gender in hiring.
- Creator
-
Perez, Alyssa, Fritzsche, Barbara, Dawson, Nicole, Shoss, Mindy, University of Central Florida
- Abstract / Description
-
Research has demonstrated how age stereotypes influence judgment and decision making at work, but older workers are more than just older. All individuals are members of multiple demographic categories, yet we know surprisingly little about how multiple category membership affects judgments and decision making at work. Competing models have been suggested, such as the category activation and inhibition model (Kulik et al., 2007) and the intersectional salience of ageism at work model (Marcus (...
Show moreResearch has demonstrated how age stereotypes influence judgment and decision making at work, but older workers are more than just older. All individuals are members of multiple demographic categories, yet we know surprisingly little about how multiple category membership affects judgments and decision making at work. Competing models have been suggested, such as the category activation and inhibition model (Kulik et al., 2007) and the intersectional salience of ageism at work model (Marcus (&) Fritzsche, 2015). However, empirical tests of these models are scarce. In the present study, the age and gender of job applicants were manipulated in a mock job interview. Job context was also manipulated through a recruitment ad that described the ideal applicant using age and gender stereotypic language. One hundred and seventy-three human resource professionals rated the mock interview. It was expected that when the demographic characteristics of the job applicant matched the stereotypes identified by the job ad, hiring professionals would rate the applicant as more suitable in hireability, qualifications, and recommended starting salary. Results showed a bias against older job applicants, as they were rated as less qualified and as requiring higher starting salaries than younger job applicants, even though their interview transcripts were identical. Moreover, a 3-way interaction showed that the highest salaries were suggested for older job applicants whose gender matched the gender stereotypes presented in the job ad. These results illustrate a hurdle faced by older workers; they will be perceived as less capable yet more expensive. Ageism emerged as the most salient category in this study of individuals seeking re-employment beyond traditional working age, but the results suggest intersectional effects as well. Future research should further examine how ageism is experienced by different multi-group members in other job contexts.
Show less - Date Issued
- 2019
- Identifier
- CFE0007511, ucf:52637
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0007511
- Title
- IMPROVING PARENT INVOLVEMENT FOR CULTURALLY AND LINGUSTICALLY DIVERSE PARENTS OF MIDDLE SCHOOL STUDENTS WITH DISABILITIES FROM URBAN SETTINGS IN SUBURBAN SCHOOLS.
- Creator
-
Urquhart, Michelle, Dieker, Lisa, University of Central Florida
- Abstract / Description
-
This study was designed to address the need for improved collaborative experiences for culturally and linguistically diverse (CLD) parents of students with disabilities. Historically, these individuals have had limited interactions with special education services and professionals, particularly at the middle school level. To improve the collaborative relationship between CLD families and schools, the study offered collaborative training sessions designed to provide opportunities for parents...
Show moreThis study was designed to address the need for improved collaborative experiences for culturally and linguistically diverse (CLD) parents of students with disabilities. Historically, these individuals have had limited interactions with special education services and professionals, particularly at the middle school level. To improve the collaborative relationship between CLD families and schools, the study offered collaborative training sessions designed to provide opportunities for parents to build on their current knowledge base and skills for effective partnerships with school personnel. The goal of the training was to increase the types and frequency of school involvement by CLD parents. The participants for this study consisted of teachers and parents of culturally diverse groups of middle grade students in special education transitioning from an urban elementary school into a suburban middle school. Hence, the researcher evaluated parent perceptions of the collaborative experience to determine the effects it had on future efforts to collaborate. Student perceptions of both the collaborative process and the teacher's ability to provide services that embrace cultural differences and reflect high expectations were also assessed. Overall evaluation of Parent Collaborative Training (PCT) demonstrated a direct influence on the behaviors of parents as well as students and teachers, who were indirectly affected by the parenting behaviors. The training influenced parents' knowledge and skills, opinions of students regarding their parents and teachers, and showed higher ratings for students across three domains: student behaviors, student capabilities, and teacher expectations.
Show less - Date Issued
- 2006
- Identifier
- CFE0001310, ucf:47016
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0001310
- Title
- GENERAL INTERFERENCE SUPPRESSION TECHNIQUE FOR DIVERSITY WIRELESS RECEIVERS IN FADING CHANNELS BASED ON INDEPENDENT COMPONENT ANALYSIS.
- Creator
-
Yang, Tianyu, Mikhael, Wasfy, University of Central Florida
- Abstract / Description
-
The area of wireless transceiver design is becoming increasingly important due to the rapid growth of wireless communications market as well as diversified design specifications. Research efforts in this area concentrates on schemes that are capable of increasing the system capacity, providing reconfigurability/reprogrammability and reducing the hardware complexity. Emerging topics related to these goals include Software Defined Radio, Multiple-Input-Multiple-Output (MIMO) Systems, Code...
Show moreThe area of wireless transceiver design is becoming increasingly important due to the rapid growth of wireless communications market as well as diversified design specifications. Research efforts in this area concentrates on schemes that are capable of increasing the system capacity, providing reconfigurability/reprogrammability and reducing the hardware complexity. Emerging topics related to these goals include Software Defined Radio, Multiple-Input-Multiple-Output (MIMO) Systems, Code Division Multiple Access, Ultra-Wideband Systems, etc. This research adopts space diversity and statistical signal processing for digital interference suppression in wireless receivers. The technique simplifies the analog front-end by eliminating the anti-aliasing filters and relaxing the requirements for IF bandpass filters and A/D converters. Like MIMO systems, multiple antenna elements are used for increased frequency reuse. The suppression of both image signal and Co-Channel Interference (CCI) are performed in DSP simultaneously. The signal-processing algorithm used is Independent Component Analysis (ICA). Specifically, the fixed-point Fast-ICA is adopted in the case of static or slow time varying channel conditions. In highly dynamic environment that is typically encountered in cellular mobile communications, a novel ICA algorithm, OBAI-ICA, is developed, which outperforms Fast-ICA for both linear and abrupt time variations. Several practical implementation issues are also considered, such as the effect of finite arithmetic and the possibility of reducing the number of antennas.
Show less - Date Issued
- 2004
- Identifier
- CFE0000231, ucf:46260
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0000231
- Title
- OWNERSHIP DIVERSITY WITHIN THE MEDIA INDUSTRY: TRENDS AND CURRENT CONDITIONS.
- Creator
-
Vizcarrondo, Thomas E, Costain, Gene, University of Central Florida
- Abstract / Description
-
This study seeks to determine if media ownership diversity remains at levels widely considered to be competitive and acceptable, despite consolidation within the media industry. The research augments the many studies analyzing programming diversity within the U. S. media industry. Rather than analyzing programming content, this study addresses ownership diversity by examining the diversity of media ownership within the context U. S. model, considered to be more of a decentralized, market...
Show moreThis study seeks to determine if media ownership diversity remains at levels widely considered to be competitive and acceptable, despite consolidation within the media industry. The research augments the many studies analyzing programming diversity within the U. S. media industry. Rather than analyzing programming content, this study addresses ownership diversity by examining the diversity of media ownership within the context U. S. model, considered to be more of a decentralized, market-driven media industry when compared to other countries such as the United Kingdom or Canada. To measure diversity, the Herfindahl-Hirschman Index (HHI)--a measure of economic diversity widely used by economists as well as government regulatory agencies--is used. Suggestions are presented for the future of media and regulation to insure a competitive, diverse, and healthy media industry.
Show less - Date Issued
- 2004
- Identifier
- CFE0000122, ucf:46189
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0000122
- Title
- ASSESSING THE IMPACT OF OYSTER REEF AND LIVING SHORELINE RESTORATION ON MACROINVERTEBRATE COMMUNITY ASSEMBLAGES IN MOSQUITO LAGOON, FLORIDA.
- Creator
-
Searles, Adam, Cook, Geoffrey, University of Central Florida
- Abstract / Description
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As the world continues to experience substantial rates of habitat loss, habitat restoration has become of prime interest to ecologists worldwide. Restoration has shown to be successful in recovering targeted components of certain ecosystems but it is important to achieve a holistic understanding of the resulting ecological impacts it has on communities. To address this, four oyster reefs and three living shorelines were restored during the summer of 2017. These sites, along with four dead...
Show moreAs the world continues to experience substantial rates of habitat loss, habitat restoration has become of prime interest to ecologists worldwide. Restoration has shown to be successful in recovering targeted components of certain ecosystems but it is important to achieve a holistic understanding of the resulting ecological impacts it has on communities. To address this, four oyster reefs and three living shorelines were restored during the summer of 2017. These sites, along with four dead oyster reefs, four living oyster reefs, and three undisturbed (control) living shorelines, were sampled before restoration and regularly post-restoration for one year using lift nets. Macroinvertebrates were collected and enumerated in the lab. Diversity indices, community composition, and similarity percentages were then calculated and compared across treatments, time, and treatment-by-time. Live reefs displayed significantly higher species richness and Shannon diversity than restored and dead reefs. Simpson diversity did not differ between live and restored oyster reefs but both were significantly higher than dead reefs. Though not statistically detectable, species richness and Shannon diversity on restored reefs were relatively similar to dead reefs before restoration but became increasingly similar to live reefs over the course of the study. Additionally, analyses revealed significantly different community compositions between live reefs and restored reefs, as well as between live and dead reefs. Living shorelines showed no significant differences in diversity indices but did experience similar seasonal fluctuations in diversity across treatments. Just as with oyster reefs, restored and control living shorelines harbored significantly different communities across time. The findings of this study emphasize the need for dedication to thorough monitoring and multi-metric evaluation of success in restoration efforts. This study and future research will equip resource managers with ways to quantify the effects of restoration that will consider several important ecosystem components.
Show less - Date Issued
- 2019
- Identifier
- CFH2000545, ucf:45646
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFH2000545
- Title
- Necessary Conditions for Open-Ended Evolution.
- Creator
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Soros, Lisa, Stanley, Kenneth, Gonzalez, Avelino, Wiegand, Rudolf, Cash, Mason, University of Central Florida
- Abstract / Description
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Evolution on Earth is widely considered to be an effectively endless process. Though this phenomenon of open-ended evolution (OEE) has been a topic of interest in the artificial life communitysince its beginnings, the field still lacks an empirically validated theory of what exactly is necessary to reproduce the phenomenon in general (including in domains quite unlike Earth). Thisdissertation (1) enumerates a set of conditions hypothesized to be necessary for OEE in addition to (2)...
Show moreEvolution on Earth is widely considered to be an effectively endless process. Though this phenomenon of open-ended evolution (OEE) has been a topic of interest in the artificial life communitysince its beginnings, the field still lacks an empirically validated theory of what exactly is necessary to reproduce the phenomenon in general (including in domains quite unlike Earth). Thisdissertation (1) enumerates a set of conditions hypothesized to be necessary for OEE in addition to (2) introducing an artificial life world called Chromaria that incorporates each of the hypothesizednecessary conditions. It then (3) describes a set of experiments with Chromaria designed to empirically validate the hypothesized necessary conditions. Thus, this dissertation describes the firstscientific endeavor to systematically test an OEE framework in an alife world and thereby make progress towards solving an open question not just for evolutionary computation and artificial life,but for science in general.
Show less - Date Issued
- 2018
- Identifier
- CFE0007247, ucf:52205
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0007247
- Title
- Is Proactive Behavior Always Positive? An Examination of Leader Reactions Based on Employee Gender and Organizational Crisis.
- Creator
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Carusone, Nicole, Shoss, Mindy, Fritzsche, Barbara, Reynolds Kueny, Clair, University of Central Florida
- Abstract / Description
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Organizations are increasingly looking to hire employees who are willing to take initiative and go above and beyond expectations (Campbell, 2000). To that aim, proactive behaviors have been increasingly considered as a potentially important characteristic of today's workers (Campbell, 2000). With workplaces becoming more decentralized and work becoming increasingly innovative and self-directed, organizations require employees who are able and willing to be proactive (Campbell, 2000; Frese (&)...
Show moreOrganizations are increasingly looking to hire employees who are willing to take initiative and go above and beyond expectations (Campbell, 2000). To that aim, proactive behaviors have been increasingly considered as a potentially important characteristic of today's workers (Campbell, 2000). With workplaces becoming more decentralized and work becoming increasingly innovative and self-directed, organizations require employees who are able and willing to be proactive (Campbell, 2000; Frese (&) Fay, 2001). Researchers have found many benefits to proactive behavior, including increases in individual performance and innovation (Seibert, Kraimer, (&) Crant, 2001; Tornau (&) Frese, 2013). While proactive behavior may have many benefits, there is some research that suggests, under certain circumstances, proactive behavior may have negative consequences for the enacting employee (Fuller, Marler, Hester, (&) Otondo, 2015; A. M. Grant, Parker, (&) Collins, 2009). This study investigated boundary conditions on the relationship between proactive behavior and positive outcomes for enacting employees. Specifically, it looked at the role of employee gender and organizational crisis on leader reactions to proactive behavior. A sample of college students participated in a laboratory experiment, where they role played as managers working with proactive employee confederates. With increased emphasis being placed on proactive behavior in the workplace, it is greatly important to understand conditions in which proactive behavior may be negatively received by leadership. Implications for theory and practice are discussed.
Show less - Date Issued
- 2018
- Identifier
- CFE0007317, ucf:52129
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0007317
- Title
- EVALUATING THE IMPACT OF OOCEA'S DYMANIC MESSAGE SIGNS (DMS) ON TRAVELERS' EXPERIENCE USING MULTINOMIAL AND ORDERED LOGIT FOR THE POST-DEPLOYMENT SURVEY.
- Creator
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Lochrane, Taylor, Al-Deek, Haitham, University of Central Florida
- Abstract / Description
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The purpose of this thesis was to evaluate the impact of dynamic message signs (DMS) on the Orlando-Orange County Expressway Authority (OOCEA) toll road network using the Post-Deployment DMS Survey analysis. DMS are electronic traffic signs used on roadways to give travelers information about travel times, traffic congestion, accidents, disabled vehicles, AMBER alerts, and special events. The particular DMS referred to in this study are large rectangular signs installed over the travel lanes...
Show moreThe purpose of this thesis was to evaluate the impact of dynamic message signs (DMS) on the Orlando-Orange County Expressway Authority (OOCEA) toll road network using the Post-Deployment DMS Survey analysis. DMS are electronic traffic signs used on roadways to give travelers information about travel times, traffic congestion, accidents, disabled vehicles, AMBER alerts, and special events. The particular DMS referred to in this study are large rectangular signs installed over the travel lanes and these are not the portable trailer mount signs. The OOCEA has added twenty-nine fixed DMS to their toll road network from 2006-2008. At the time of the post-deployment survey, a total of twenty-nine DMS were up and running on the OOCEA toll road network. Since most of the travelers on the OOCEA toll roads were from Orange, Osceola, and Seminole counties, this study was limited to these counties. This thesis documents the results for the post-deployment survey analysis. The instrument used to analyze the travelers' perception of DMS was a survey that utilized computer aided telephone interview. The post-deployment survey was conducted during the month of May, 2008. Questions pertaining to the acknowledgement of DMS on the OOCEA toll roads, satisfaction with travel information provided on the network, formatting of the messages, satisfaction with different types of messages, diversion questions (Revealed and Stated preferences), and classification/socioeconomic questions (such as age, education, most traveled toll road, county of residence, and length of residency) were asked to the respondents. This thesis is using results of the multinomial logit model for diversion of traffic. This model takes into account the different diversion decisions from the post development survey (stay vs. divert all the way vs. divert and come back vs. abandon trip) and explains the differences in the diversion behavior. Drivers that use SunPass or Epass tend to stay on the toll road during unexpected congestion. Frequent SR 408 users are more likely to divert and stay off the toll road and frequent SR 417 users are more likely to divert and get back on the toll road. Drivers whose stated preference was to divert off the toll road were more likely to do the same in the real world. However, not too many of the respondents were likely to abandon their trips in the real world even if they said they would in a hypothetical congestion scenario. Users of 511 were more likely to divert and get back on the toll road or abandon their trips due to unexpected congestion. OOCEA can use this study to concentrate on keeping their toll roads more attractive during unexpected congestion to keep drivers from diverting all the way or abandoning their trips. For example, better incident management in clearing accidents more efficiently (thereby decreasing delay) and encouraging the use of SunPass or EPass could help drivers stay than divert or abandon their trip. This thesis also used ordered logit model for satisfaction. This model explains the levels of magnitude of satisfaction with traveler information on OOCEA toll roads. Drivers who acquired traveler information from DMS were less likely to be dissatisfied with traveler information provided on toll roads than other respondents. Drivers who were satisfied with accuracy and information on hazard warnings on DMS were more likely to be satisfied with information provided on toll roads than other respondents. This thesis provides a microscopic insight on the driver behavior on toll roads. This thesis expands the diversion and satisfaction models from previous studies in a way that OOCEA can identify specific groups of drivers related to a given response behavior (i.e., diverts off toll roads or dissatisfied with traveler information). Such analysis can be conducted in the future in the same study area or replicated in other areas to quantify the effects of individual and choice related attributes on choice behavior.
Show less - Date Issued
- 2009
- Identifier
- CFE0002711, ucf:48169
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0002711
- Title
- Hybrid Integrated Photonic Platforms and Devices.
- Creator
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Chiles, Jeffrey, Fathpour, Sasan, Vodopyanov, Konstantin, Khajavikhan, Mercedeh, Chanda, Debashis, University of Central Florida
- Abstract / Description
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Integrated photonics has the potential to revolutionize optical systems by achieving drastic reductions in their size, weight and power. Remote spectroscopy, free-space communications and high-speed telecommunications are critical applications that would benefit directly from these advancements. However, many such applications require extremely wide spectral bandwidths, leading to significant challenges in their integration. The choice of integrated platform influences the optical...
Show moreIntegrated photonics has the potential to revolutionize optical systems by achieving drastic reductions in their size, weight and power. Remote spectroscopy, free-space communications and high-speed telecommunications are critical applications that would benefit directly from these advancements. However, many such applications require extremely wide spectral bandwidths, leading to significant challenges in their integration. The choice of integrated platform influences the optical transparency and functionality which can be ultimately achieved. In this work, several new platforms and technologies have been developed to meet these needs. First, the silicon-on-lithium-niobate (SiLN) platform is discussed, on which the first compact, integrated electro-optic modulator in the mid-infrared has been demonstrated. Next, results are shown in the development of the all-silicon-optical-platform (ASOP), an ultra-stable suspended membrane approach which offers broad optical transparency from 1.2 to 8.5 um and enables efficient nonlinear frequency conversion in the mid-IR. This fabrication approach is then taken further with (")anchored-membrane waveguides,(") (T-Guides) enabling single-mode and single-polarization waveguiding over a span exceeding 1.27 octaves. Afterward, a new photonic technology enabling integrated polarization beam-splitters and polarizers over unprecedented bandwidths is introduced, called topographically anisotropic photonics (TAP). Next, results on high-performance microphotonic chalcogenide glass waveguides are presented. Finally, several integrated photonics concepts suitable for further work will be discussed, such as augmentations to T-Guides and a novel technique for quasi-phase-matching.
Show less - Date Issued
- 2016
- Identifier
- CFE0006447, ucf:51408
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0006447
- Title
- ATTITUDES TOWARD DIVERSITY AND LIFE IN THE U.S. HELD BY CHILDREN OF HISPANIC IMMIGRANTS: DO THEIR PARENTS PLAY A ROLE?.
- Creator
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Ruiz, Vanessa, Negy, Charles, University of Central Florida
- Abstract / Description
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The present study explores how children of Hispanic immigrants (CHIs) perceive life in the U.S., and how they view cultural diversity. Questionnaires were given to 92 non-U.S. born CHIs and one of their non-U.S. born Hispanic immigrant parents (HIPs) who have lived in the U.S. between 1 and 17 years (M yrs = 8.43); their views of the U.S. were assessed along with their acceptance of diversity, acculturative stress, and levels of acculturation. In this study, I found that CHIs generally hold...
Show moreThe present study explores how children of Hispanic immigrants (CHIs) perceive life in the U.S., and how they view cultural diversity. Questionnaires were given to 92 non-U.S. born CHIs and one of their non-U.S. born Hispanic immigrant parents (HIPs) who have lived in the U.S. between 1 and 17 years (M yrs = 8.43); their views of the U.S. were assessed along with their acceptance of diversity, acculturative stress, and levels of acculturation. In this study, I found that CHIs generally hold positive views of the lives in the U.S. and also hold favorable views toward cultural diversity. Furthermore, this study hypothesized that HIPs significantly influence their CHIs attitudes toward both the U.S. and toward cultural diversity. Overall, my findings validated the theoretically based expectation that demonstrates the power of parental attitudes on their children's attitudes. A significant correlation was found between HIPs' attitudes toward the U.S. and their children's attitudes, as well as, CHIs' attitudes toward the U.S. correlating significantly with their perceptions of their parents' attitudes toward the U.S. Multiple and stepwise regressions further confirmed the importance of parental attitudes toward their children's attitudes toward the U.S. and their openness to cultural diversity. Findings from this study provide implications for future research.
Show less - Date Issued
- 2015
- Identifier
- CFH0004875, ucf:45413
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFH0004875
- Title
- MIXED SIGNALS AT THE INTERSECTION: THE EFFECT OF ORGANIZATIONAL COMPOSITION ON RATINGS OF BLACK WOMEN'S MANAGEMENT SUITABILITY.
- Creator
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Bowens, Laticia, Fritzsche, Ph.D., Barbara, University of Central Florida
- Abstract / Description
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Historically, Black women's workplace experiences have been understudied, partially due to an implicit assumption that their experiences are subsumed by research on Black men and/or White women. This oversight is even more evident in the field of management. However, considerable attention has been given to the debate about whether Black women are at a double advantage (i.e., as supposed affirmative action "two-for-one bargains") or at a double disadvantage due to their double marginalizing...
Show moreHistorically, Black women's workplace experiences have been understudied, partially due to an implicit assumption that their experiences are subsumed by research on Black men and/or White women. This oversight is even more evident in the field of management. However, considerable attention has been given to the debate about whether Black women are at a double advantage (i.e., as supposed affirmative action "two-for-one bargains") or at a double disadvantage due to their double marginalizing characteristics. Empirical research in the area has found support for each side, furthering the debate, but also advancing an overly simplistic explanation for a set of experiences that is certainly much more complicated. Therefore, the purpose of this study was to investigate the conditions under which Black women, when seeking managerial employment, are at a double advantage or disadvantage, using Critical Race Feminism, Cox's Interactional Model of Cultural Diversity (IMCD; 1994), and theories of social categorization as the theoretical foundation. A 2 (sex) x 2 (race) x 2 (demographic composition of the workplace) between-subjects design was used to test the hypotheses that the Black female applicant would have a double disadvantage in a more demographically balanced organization and double advantage in an organization that is more White and male. Participants (N = 361) reviewed information about an organization (where demographic composition was manipulated) and three available management positions. They also reviewed a fictional professional networking profile of a job applicant where race and sex were manipulated through photos, and job qualifications and experience were held constant. Based on all of the information, they rated the applicant on his/her suitability for the jobs. Results of planned contrasts and ANOVAs showed partial support for the hypotheses. In the balanced organization, the Black female applicant was rated lower in suitability for entry-level management than the Black male and White female applicants. Likewise, she was rated higher than the Black male and White female applicants in the less diverse organization, when evaluated for upper-level management. Thus, the study clarifies the theories of double advantage and double disadvantage by identifying organizational composition as a moderator of the relationship between applicant race/sex and employment outcomes (i.e., management suitability ratings). The implications of these findings are discussed.
Show less - Date Issued
- 2011
- Identifier
- CFE0003761, ucf:48761
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0003761
