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THE PLIGHT OF FOREIGN NATIONAL WOMEN IN THE UNITED KINGDOM: COERCION AND TRAFFICKING AS FACTORS OF IMPRISONMENT
Title
THE PLIGHT OF FOREIGN NATIONAL WOMEN IN THE UNITED KINGDOM: COERCION AND TRAFFICKING AS FACTORS OF IMPRISONMENT.
Creator
Lokey, Sarah, Nacarrato-Fromang, Gina, University of Central Florida
Abstract / Description
Within the United Kingdom (UK) prisons exists Foreign National women (FNW), a unique demographic of women who are non-UK citizens who have committed crimes within the UK. It is important to delve deeper into the issue before judgment is made, however, it seems as though in most circumstances, most citizens are not willing or perhaps even unknowledgeable that such a population within prison exists. Therefore, it is important to educate others about the issues that FNW in prison face. This...
Show moreWithin the United Kingdom (UK) prisons exists Foreign National women (FNW), a unique demographic of women who are non-UK citizens who have committed crimes within the UK. It is important to delve deeper into the issue before judgment is made, however, it seems as though in most circumstances, most citizens are not willing or perhaps even unknowledgeable that such a population within prison exists. Therefore, it is important to educate others about the issues that FNW in prison face. This research focuses on the issues such as lack of special services for the women such as translation and family contacts, lack of assistance with applications for asylum, general fear for returning to the home country, and why the women came to the country to begin with. Once the general public becomes aware of these issues, these women can move forward as legislation and assistance can be provided to them. The lack of resources for FNW can lead to isolation, fear, loss of family ties, and even death, should they be forced to return to a dangerous country or situation. While this issue is a worldwide problem, this research will specifically address FNW in prison in the United Kingdom (UK), and the policies and assistance, or lack thereof that the UK has provided thus far. Furthermore, the research will address the issue of the UK's Automatic Deportation Policy and whether or not FNW are being charged with harsher punishment than the UK national women with similar crimes.
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Date Issued
2013
Identifier
CFH0004349, ucf:44987
Format
Document (PDF)
PURL
http://purl.flvc.org/ucf/fd/CFH0004349
Small Nothings
Title
Small Nothings.
Creator
Washburn, Leah, Poissant, David, Milanes, Cecilia, Thaxton, Terry, University of Central Florida
Abstract / Description
Small Nothings is a collection of ten short stories exploring the connection between place, friendship, and family. Set in Missouri's capital, a variety of characters grapple with different types of separation and loneliness. Couples struggle with emotional distance, children try to reconnect with their parents, and an old woman faces the loss of her independence. Through small conflicts and choices, these stories revolve around isolation, disconnection, and absence. How do missing presences...
Show moreSmall Nothings is a collection of ten short stories exploring the connection between place, friendship, and family. Set in Missouri's capital, a variety of characters grapple with different types of separation and loneliness. Couples struggle with emotional distance, children try to reconnect with their parents, and an old woman faces the loss of her independence. Through small conflicts and choices, these stories revolve around isolation, disconnection, and absence. How do missing presences affect family and friendship? How do people deal with change through everyday choices?
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Date Issued
2018
Identifier
CFE0007112, ucf:51932
Format
Document (PDF)
PURL
http://purl.flvc.org/ucf/fd/CFE0007112
Monolithically Integrated InP-based Unidirectional Circulators Utilizing non-Hermiticity and Nonlinearity
Title
Monolithically Integrated InP-based Unidirectional Circulators Utilizing non-Hermiticity and Nonlinearity.
Creator
Aleahmad, Parinaz, Christodoulides, Demetrios, Delfyett, Peter, Likamwa, Patrick, Moya Cessa, Hector Manual, University of Central Florida
Abstract / Description
The need to integrate critical optical components on a single chip has been an ongoing quest in both optoelectronics and optical communication systems. Among the possible devices, elements supporting non-reciprocal transmission are of great interest for applications where signal routing and isolation is required. In this respect, breaking reciprocity is typically accomplished via Faraday rotation through appropriate magneto-optical arrangements. Unfortunately, standard light emitting...
Show moreThe need to integrate critical optical components on a single chip has been an ongoing quest in both optoelectronics and optical communication systems. Among the possible devices, elements supporting non-reciprocal transmission are of great interest for applications where signal routing and isolation is required. In this respect, breaking reciprocity is typically accomplished via Faraday rotation through appropriate magneto-optical arrangements. Unfortunately, standard light emitting optoelectronic materials like for example III-V semiconductors, lack magneto-optical properties and hence cannot be directly used in this capacity. To address these issues, a number of different tactics have been attempted in the last few years. These range from directly bonding garnets on chip, to parametric structures and unidirectional nonlinear arrangements involving ring resonators, to mention a few. Clearly, of importance will be to realize families of non-reciprocal devises that not only can be miniaturized and readily integrated on chip but they also rely on physical processes that are indigenous to the semiconductor wafer itself. Quite recently we have theoretically shown that such unidirectional systems can be implemented, provided one simultaneously exploits the presence of gain/loss processes and optical nonlinearities. In principle, these all-dielectric structures can be broadband, polarization insensitive, color-preserving, and can display appreciable isolation ratios provided they are used under pulsed conditions. In this study, we experimentally demonstrate a compact, monolithically integrated unidirectional 4(&)#215;4 optical circulator, based on non-reciprocal optical transmission through successive amplification/attenuation stages and elements with very large resonance nonlinearities associated with InGaAsP quantum wells. Our results indicate that isolation ratios over 20dB can be experimentally achieved in pulse-mode operation. Our design can be effortlessly extended to other existing optoelectronic device systems beyond InP.
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Date Issued
2016
Identifier
CFE0006522, ucf:51373
Format
Document (PDF)
PURL
http://purl.flvc.org/ucf/fd/CFE0006522
The effects of urbanization on cypress (Taxodium distichum) in central Florida
Title
The effects of urbanization on cypress (Taxodium distichum) in central Florida.
Creator
McCauley, Lisa, Jenkins, David, Quintana-Ascencio, Pedro, Hoffman, Eric, Ewel, Kathy, University of Central Florida
Abstract / Description
Urbanization is accelerating in the United States and is contributing to fragmentation of natural habitats, causing changes in species composition and declines in native species. Human population growth in Orlando is typical of growth in the southeastern United States and throughout the range of cypress (Taxodium distichum). Orlando has numerous isolated cypress wetlands, called cypress domes, and many remain among the current urbanized area. This makes Orlando ideal to study the effects of...
Show moreUrbanization is accelerating in the United States and is contributing to fragmentation of natural habitats, causing changes in species composition and declines in native species. Human population growth in Orlando is typical of growth in the southeastern United States and throughout the range of cypress (Taxodium distichum). Orlando has numerous isolated cypress wetlands, called cypress domes, and many remain among the current urbanized area. This makes Orlando ideal to study the effects of urbanization on cypress domes. Specifically, I tested how urbanization and its effects on fragmentation, hydrology, and fire regime) affected (a) the numbers and spatial pattern of cypress domes in central Florida and (b) the recruitment of cypress within cypress domes. Analysis of historical loss found over 3,000 cypress domes identified in images from1984, of which 26% were lost or degraded (i.e., no longer cypress-dominated) by 2004. Due to changed land use, many remaining cypress domes, formerly surrounded by natural lands, have become surrounded by urban lands causing spatial clustering and homogenization. Surprisingly, I found that both natural and urban cypress domes showed lower recruitment than agricultural cypress domes, where the natural fire regime has not been altered. The probability of cypress recruitment in cypress domes urbanized for more than 20 years is very low. Previous to that, cypress tends to recruit on the edge of cypress domes where there is less competition and hydrological conditions are more favorable. I estimate that only ~50% of the current cypress domes are recruiting and the existence of those wetlands are tied to the lifespan of the current adults. By 2104, I estimate that ~89% of the cypress domes currently recruiting will fail to recruit. I believe that reducing urban sprawl and restoring the natural fire regime to natural cypress domes will mitigate the current fate of cypress domes. Without this, cypress in isolated wetlands in central Florida, and providing Orlando urbanization is typical, throughout urbanized areas of the range, could be at risk. Cypress in urban areas will be then relegated to riparian zones and with unknown consequences for the species that utilize the former cypress dome habitat.
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Date Issued
2011
Identifier
CFE0004136, ucf:49065
Format
Document (PDF)
PURL
http://purl.flvc.org/ucf/fd/CFE0004136
Non-Reciprocal Wave Transmission in Integrated Waveguide Array Isolators
Title
Non-Reciprocal Wave Transmission in Integrated Waveguide Array Isolators.
Creator
Ho, Yat, Likamwa, Patrick, Christodoulides, Demetrios, Vanstryland, Eric, Kaup, David, University of Central Florida
Abstract / Description
Non-reciprocal wave transmission is a phenomenon witnessed in certain photonic devices when the wave propagation dynamics through the device along one direction differs greatly from the dynamics along the counter-propagating direction. Specifically, it refers to significant power transfer occurring in one direction, and greatly reduced power transfer in the opposite direction. The resulting effect is to isolate the directionality of wave propagation, allowing transmission to occur along one...
Show moreNon-reciprocal wave transmission is a phenomenon witnessed in certain photonic devices when the wave propagation dynamics through the device along one direction differs greatly from the dynamics along the counter-propagating direction. Specifically, it refers to significant power transfer occurring in one direction, and greatly reduced power transfer in the opposite direction. The resulting effect is to isolate the directionality of wave propagation, allowing transmission to occur along one direction only.Given the popularity of photonic integrated circuits (PIC), in which all the optical components are fabricated on the same chip so that the entire optical system can be made more compact, it is desirable to have an easily integrated optical isolator. Common free-space optical isolator designs, which rely on the Faraday effect, are limited by the availability of suitable magnetic materials. This research proposes a novel integrated optical isolator based on an array of closely spaced, identical waveguides. Because of the nonlinear optical properties of the material, this device exploits the differing behaviors of such an array when illuminated with either a high power or a low power beam to achieve non-reciprocal wave transmission in the forwards and backwards directions, respectively. The switching can be controlled electro-optically via an integrated gain section which provides optical amplification before the input to the array. The design, fabrication, characterization and testing of this optical isolator are covered in this dissertation. We study the switching dynamics of this device and present its optimum operating conditions. ?
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Date Issued
2012
Identifier
CFE0004305, ucf:49495
Format
Document (PDF)
PURL
http://purl.flvc.org/ucf/fd/CFE0004305
REAL LONELINESS AND ARTIFICIAL COMPANIONSHIP: LOOKING FOR SOCIAL CONNECTIONS IN TECHNOLOGY
Title
REAL LONELINESS AND ARTIFICIAL COMPANIONSHIP: LOOKING FOR SOCIAL CONNECTIONS IN TECHNOLOGY.
Creator
Montalvo, Fernando L, Smither, Janan, University of Central Florida
Abstract / Description
Loneliness among older adults is a problem with severe consequences to individual health, quality of life, cognitive capacity, and life-expectancy. Although approaches towards improving the quality and quantity of social relationships are the prevailing model of therapy, older adults may not always be able to form these relationships due to either personality factors, decreased mobility, or isolation. Intelligent personal assistants (IPAs), virtual agents, and social robotics offer an...
Show moreLoneliness among older adults is a problem with severe consequences to individual health, quality of life, cognitive capacity, and life-expectancy. Although approaches towards improving the quality and quantity of social relationships are the prevailing model of therapy, older adults may not always be able to form these relationships due to either personality factors, decreased mobility, or isolation. Intelligent personal assistants (IPAs), virtual agents, and social robotics offer an opportunity for the development of technology that could potentially serve as social companions to older adults. The present study explored whether an IPA could potentially be used as a social companion to older adults feeling lonely. Additionally, the research explored whether the device has the potential to generate social presence among both young and older adults. Results indicate that while the devices do show some social presence, participants rate the device low on some components of social presence, such as emotional contagion. This adversely affects the possibility of a social relationship between an older adult and the device. Analysis reveals ways to improve social presence in these devices.
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Date Issued
2017
Identifier
CFH2000186, ucf:46005
Format
Document (PDF)
PURL
http://purl.flvc.org/ucf/fd/CFH2000186
A NON-ISOLATED HALF BRIDGE BUCK-BASED CONVERTER FOR VRM APPLICATION AND SMALL SIGNAL MODELING OF A NON-CONVENTIONAL TWO PHASE BUCK
Title
A NON-ISOLATED HALF BRIDGE BUCK-BASED CONVERTER FOR VRM APPLICATION AND SMALL SIGNAL MODELING OF A NON-CONVENTIONAL TWO PHASE BUCK.
Creator
Batarseh, Majd, Batarseh, Issa, University of Central Florida
Abstract / Description
The challenges imposed on Voltage Regulator Modules (VRM) become difficult to be achieved with the conventional multiphase buck converter commonly used on PC motherboards. For faster data transfer, a decrease in the output voltage is needed. This decrease causes small duty cycle that is accompanied by critical problems which impairs the efficiency. Therefore, these problems need to be addressed. Transformer-based non-isolated topologies are not new approaches to extend the duty cycle and...
Show moreThe challenges imposed on Voltage Regulator Modules (VRM) become difficult to be achieved with the conventional multiphase buck converter commonly used on PC motherboards. For faster data transfer, a decrease in the output voltage is needed. This decrease causes small duty cycle that is accompanied by critical problems which impairs the efficiency. Therefore, these problems need to be addressed. Transformer-based non-isolated topologies are not new approaches to extend the duty cycle and avoid the associated drawbacks. High leakage, several added components and complicated driving and control schemes are some of the trade-offs to expand the duty cycle. The objective of this work is to present a new dc-dc buck-based topology, which extends the duty cycle with minimum drawbacks by adding two transformers that can be integrated to decrease the size and two switches with zero voltage switching (ZVS). Another issue addressed in this thesis is deriving a small signal model for a two-input two-phase buck converter as an introduction to a new evolving field of multi-input converters.
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Date Issued
2006
Identifier
CFE0001513, ucf:47130
Format
Document (PDF)
PURL
http://purl.flvc.org/ucf/fd/CFE0001513
SPATIOTEMPORAL VARIATION OF AVIAN POPULATIONS WITHIN GEOGRAPHICALLY ISOLATED FRESHWATER MARSHES
Title
SPATIOTEMPORAL VARIATION OF AVIAN POPULATIONS WITHIN GEOGRAPHICALLY ISOLATED FRESHWATER MARSHES.
Creator
Rodenbeck, Brian, Weishampel, John, University of Central Florida
Abstract / Description
Metacommunity connectivity, i.e., multi-species dispersal events, is vital to metapopulation persistence in patchy landscapes. Assessments of metacommunity connectivity are not trivial. However, a relationship between trophic rank and the species-area relationship has been found in previous studies, allowing for the use of the predator species-area relationship to act as a surrogate measure of actual metacommunity connectivity of prey species in some systems. For this study, avian species...
Show moreMetacommunity connectivity, i.e., multi-species dispersal events, is vital to metapopulation persistence in patchy landscapes. Assessments of metacommunity connectivity are not trivial. However, a relationship between trophic rank and the species-area relationship has been found in previous studies, allowing for the use of the predator species-area relationship to act as a surrogate measure of actual metacommunity connectivity of prey species in some systems. For this study, avian species were selected as they are generalist top predators within the study system. Predator species richness within geographically isolated freshwater marshes is influenced by a number of factors. I explore the relative roles of patch area, seasonality, hydroperiod, isolation, and vegetation structure on habitat use in the isolated freshwater marshes embedded within the dry prairie ecosystem of Central Florida. Predator species richness was surveyed in 50 sites for three seasons: fall 2005, winter 2005/06, and spring 2006 and the observed avian assemblage measures were subdivided into foraging guilds for analysis. Wading guild (e.g., egrets, herons, bitterns) species richness was correlated with hydroperiod and vegetation structural variables while perching guild (e.g., blackbirds, sparrows, meadowlarks) species richness was correlated with isolation, hydroperiod, and area annually. Overall predator and all guild species richness measures were also correlated with patch area for all seasons. These results suggest that while a complex mixture of patch area, hydroperiod and isolation influence habitat utilization that varies by season and at the community, guild and individual species level, the underlying predictors that define habitat use in wetlands annually includes hydroperiod, and is not exclusively patch area. Additionally, seasonal differences in predator species richness were found to be significant in some cases indicating that future avian population studies may benefit by sampling outside of the normally studied spring breeding season. Results of this study support the use of predator species richness as a suitable assay of metacommunity connectivity of prey species. Applications and implications of this approach toward future conservation efforts are discussed.
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Date Issued
2007
Identifier
CFE0001766, ucf:47253
Format
Document (PDF)
PURL
http://purl.flvc.org/ucf/fd/CFE0001766
USING LANDSCAPE GENETICS TO ASSESS POPULATION CONNECTIVITY IN A HABITAT GENERALIST
Title
USING LANDSCAPE GENETICS TO ASSESS POPULATION CONNECTIVITY IN A HABITAT GENERALIST.
Creator
Hether, Tyler, Hoffman, Eric, University of Central Florida
Abstract / Description
Understanding the nature of genetic variation in natural populations is an underlying theme of population genetics. In recent years population genetics has benefited from the incorporation of landscape and environmental data into pre-existing models of isolation by distance (IBD) to elucidate features influencing spatial genetic variation. Many of these landscape genetics studies have focused on populations separated by discrete barriers (e.g., mountain ridges) or species with specific...
Show moreUnderstanding the nature of genetic variation in natural populations is an underlying theme of population genetics. In recent years population genetics has benefited from the incorporation of landscape and environmental data into pre-existing models of isolation by distance (IBD) to elucidate features influencing spatial genetic variation. Many of these landscape genetics studies have focused on populations separated by discrete barriers (e.g., mountain ridges) or species with specific habitat requirements (i.e., habitat specialists). One difficulty in using a landscape genetics approach for taxa with less stringent habitat requirements (i.e., generalists) is the lack of obvious barriers to gene flow and preference for specific habitats. My study attempts to fill this information gap to understand mechanisms underlying population subdivision in generalists, using the squirrel treefrog (Hyla squirella) and a system for classifying 'terrestrial ecological systems' (i.e. habitat types). I evaluate this dataset with microsatellite markers and a recently introduced method based on ensemble learning (Random Forest) to identify whether spatial distance, habitat types, or both have influenced genetic connectivity among 20 H. squirella populations. Next, I hierarchically subset the populations included in the analysis based on (1) genetic assignment tests and (2) Mantel correlograms to determine the relative role of spatial distance in shaping landscape genetic patterns. Assignment tests show evidence of two genetic clusters that separate populations in Florida's panhandle (Western cluster) from those in peninsular Florida and southern Georgia (Eastern cluster). Mantel correlograms suggest a patch size of approximately 150 km. Landscape genetic analyses at all three spatial scales yielded improved model fit relative to isolation by distance when including habitat types. A hierarchical effect was identified whereby the importance of spatial distance (km) was the strongest predictor of patterns of genetic differentiation above the scale of the genetic patch. Below the genetic patch, spatial distance was still an explanatory variable but was only approximately 30% as relevant as mesic flatwoods or upland oak hammocks. Thus, it appears that habitat types largely influence patterns of population genetic connectivity at local scales but the signal of IBD becomes the dominant driver of regional connectivity. My results highlight some habitats as highly relevant to increased genetic connectivity at all spatial scales (e.g., upland oak hammocks) while others show no association (e.g., silviculture) or scale specific associations (e.g., pastures only at global scales). Given these results it appears that treating habitat as a binary metric (suitable/non-suitable) may be overly simplistic for generalist species in which gene flow probably occurs in a spectrum of habitat suitability. The overall pattern of spatial genetic and landscape genetic structure identified here provides insight into the evolutionary history and patterns of population connectivity for H. squirella and improves our understanding of the role of matrix composition for habitat generalists.
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Date Issued
2010
Identifier
CFE0003204, ucf:48580
Format
Document (PDF)
PURL
http://purl.flvc.org/ucf/fd/CFE0003204
Load Transfer in an Isolated Particle Embedded within an Epoxy Matrix
Title
Load Transfer in an Isolated Particle Embedded within an Epoxy Matrix.
Creator
Durnberg, Erik, Raghavan, Seetha, Gou, Jihua, Bai, Yuanli, University of Central Florida
Abstract / Description
Particulate composites are widely used in many aerospace applications such as protective coatings, adhesives, or structural members of a body and their mechanical properties and behavior have gained increasing significance. The addition of modifiers such as alumina generally leads to improved mechanical properties. This addition also enables the non-invasive study of the load transfer between the particle and the matrix. Understanding the load transfer between the particulate and the matrix...
Show moreParticulate composites are widely used in many aerospace applications such as protective coatings, adhesives, or structural members of a body and their mechanical properties and behavior have gained increasing significance. The addition of modifiers such as alumina generally leads to improved mechanical properties. This addition also enables the non-invasive study of the load transfer between the particle and the matrix. Understanding the load transfer between the particulate and the matrix material is the first step to understanding the behavior and mechanical properties of the composite as a whole. In this work, samples with an isolated alumina particle embedded in an epoxy matrix were created to replicate the ideal assumptions for many particulate mechanics models. In separate experiments, both photo stimulated luminescent spectroscopy (PSLS) and synchrotron radiation were used to collect the spectral emission and diffraction rings, respectively, from the mechanically loaded samples. The PSLS data and XRD data are shown to be in qualitative agreement that as particle size is increased, the load transferred to the particle also increased for the range of particle sizes tested. This trend of increasing load transfer with increasing particle size is compared with the classical Eshelby model. Results from this work provide experimental insight into the load transfer properties of particulate composites and can serve to experimentally validate the theoretical load transfer models that currently exist.
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Date Issued
2014
Identifier
CFE0005326, ucf:50535
Format
Document (PDF)
PURL
http://purl.flvc.org/ucf/fd/CFE0005326
BULLYING: OUT OF THE SCHOOL HALLS AND INTO THE WORKPLACE
Title
BULLYING: OUT OF THE SCHOOL HALLS AND INTO THE WORKPLACE.
Creator
Cooney, Lucretia, Huff-Corzine, Lin, University of Central Florida
Abstract / Description
The primary purpose of this study is to identify those people at most risk of being bullied at work. While much research is being conducted on school bullying, little has been conducted on workplace bullying. Using data gathered from a 2004 study conducted by the National Opinion Research Center for the General Social Survey, which included a Quality of Work Life (QWL) module for the National Institute for Occupational Safety and Health (NIOSH), linear regressions indicated significant...
Show moreThe primary purpose of this study is to identify those people at most risk of being bullied at work. While much research is being conducted on school bullying, little has been conducted on workplace bullying. Using data gathered from a 2004 study conducted by the National Opinion Research Center for the General Social Survey, which included a Quality of Work Life (QWL) module for the National Institute for Occupational Safety and Health (NIOSH), linear regressions indicated significant findings. As predicted, workers in lower level occupations, as ranked by prestige scoring developed at National Opinion Research, are more likely to be victimized. Data also suggest that being young, Black, and relatively uneducated may contribute to being bullied in certain situations. Future research is needed to examine influences of socio-economic, legal, and other demographic factors that may predict the chance of being bullied.
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Date Issued
2010
Identifier
CFE0003235, ucf:48512
Format
Document (PDF)
PURL
http://purl.flvc.org/ucf/fd/CFE0003235