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Articles 31 - 60 of 388
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"In The Drowning City" And Other Stories, Malyn Matilde Segarra
"In The Drowning City" And Other Stories, Malyn Matilde Segarra
Electronic Theses and Dissertations
In the Drowning City and Other Stories is a collection of fiction written and revised during Malyn Segarra's graduate studies at the University of Central Florida. Most of the collection examines the transient nature and fragility of identity and shifting roles within the family unit. All focus on a particular span of time, the transition into young adulthood. Each character is faced with an obstacle or event that tests his or her beliefs, integrity and sense of self. As each one struggles to make a unique and permanent impression in the world, he or she must come to terms with …
Russian Cultural Factors Related To Perceived Criminal Procedure Fairness: The Juxtaposition Of Policy And Practice, Olga B. Semukhina
Russian Cultural Factors Related To Perceived Criminal Procedure Fairness: The Juxtaposition Of Policy And Practice, Olga B. Semukhina
Electronic Theses and Dissertations
The purpose of this study is to investigate the relationship between the Russian culture and citizens' perceived fairness of the new Criminal Procedural Code of Russia of 2001 (CPC of 2001). The CPC of 2001 is a key policy in the Russian criminal law reform with the purpose of implementing adversarial procedure elements in Russia. The existing literature has documented the lack of public support along with observed violations of the CPC's major provisions which as made this an important area for study. It is theorized that the apparent contradiction between the underlying values of the Russian culture, and CPC's …
Image-Space Approach To Real-Time Realistic Rendering, Musawir Shah
Image-Space Approach To Real-Time Realistic Rendering, Musawir Shah
Electronic Theses and Dissertations
One of the main goals of computer graphics is the fast synthesis of photorealistic image of virtual 3D scenes. The work presented in this thesis addresses this goal of speed and realism. In real-time realistic rendering, we encounter certain problems that are difficult to solve in the traditional 3-dimensional geometric space. We show that using an image-space approach can provide effective solutions to these problems. Unlike geometric space algorithms that operate on 3D primitives such as points, edges, and polygons, image-space algorithms operate on 2D snapshot images of the 3D geometric data. Operating in image-space effectively decouples the geometric complexity …
Optimization Models For Emergency Relief Shelter Planning For Anticipated Hurricane Events, Abeer Tarief Sharawi
Optimization Models For Emergency Relief Shelter Planning For Anticipated Hurricane Events, Abeer Tarief Sharawi
Electronic Theses and Dissertations
Natural disasters, specifically hurricanes, can cause catastrophic loss of life and property. In recent years, the United States has endured significant losses due to a series of devastating hurricanes (e.g., Hurricanes Charley and Ivan in 2004, and Hurricanes Katrina and Wilma in 2005). Several Federal authorities report that there are weaknesses in the emergency and disaster planning and response models that are currently employed in practice, thus creating a need for better decision models in emergency situations. The current models not only lack fast communication with emergency responders and the public, but are also inadequate for advising the pre-positioning of …
Optical And Physical Properties Of Ceramic Crystal Laser Materials, Jed Simmons
Optical And Physical Properties Of Ceramic Crystal Laser Materials, Jed Simmons
Electronic Theses and Dissertations
Historically ceramic crystal laser material has had disadvantages compared to single crystal laser material. However, progress has been made in the last decade and a half to overcome the disadvantages associated with ceramic crystal. Today, because of the promise of ceramic crystal as a high power laser material, investigation into its properties, both physical and optical, is warranted and important. Thermal expansion was measured in this thesis for Nd:YAG (yttrium aluminum garnet) ceramic crystal using an interferometric method. The interferometer employed a spatially filtered HeNe at 633 nm wavelength. Thermal expansion coefficients measured for the ceramic crystal samples were near …
The Impact Of Computer Based Simulation Training On Leadership Development, Stanley Sidor
The Impact Of Computer Based Simulation Training On Leadership Development, Stanley Sidor
Electronic Theses and Dissertations
The purpose of this study was to investigate the relationship between measures of emotional intelligence after participation in a simulation based leadership development program as applied to a student cohort at a community college. Additionally, this study was conducted to investigate significant differences in emotional intelligence subscales when compared to the categorical variables of age, race, gender, position type, number of years employed, and time. All 300 students in the introductory management classes in the Bachelors of Applied Science business principles classes in the Business program were invited to participate. A total of 201 questionnaires representing 103 individuals were returned, …
Identification Of Genes Encoding Acyl-Coa Reductases And Aldehyde Reductases In Mycobacterial Genome By Characterization Of The Reductases Expressed In E. Coli, Harminder Singh
Electronic Theses and Dissertations
Mycobacterium tuberculosis has been long known to produce wax esters. However, the enzymes involved in their biosynthesis have not been identified. Here we report the identification of Rv3391 and Rv1543 as genes that encode fatty acyl-CoA reductases and Rv1544 as one that encodes an aldehyde reductase. When expressed in E.coli, the products of Rv3391 and Rv1543 catalyzed reduction of fatty acyl-CoA to fatty alcohol with the corresponding aldehyde as an intermediate with an optimal pH of 7.0. Both enzymes showed a strong preference for NADPH over NADH as a reductant. Apparent Km for NADPH was 38 [micro]M for Rv3391 product …
Social Pathogenic Sources Of Poor Community Health, Hayden Smith
Social Pathogenic Sources Of Poor Community Health, Hayden Smith
Electronic Theses and Dissertations
The United States currently provides a health care system that is neither efficient nor equitable. Despite outspending the world on health care, over three-fourths of developed countries produce better health outcomes (Auerbach et al., 2000). Simultaneously, the "Ecological School of Thought" has documented the large impact that social, economic, and environmental circumstances play in health outcomes. Unfortunately, these 'ecological" studies are frequently conducted without theoretical justification, and rely solely on a cross-sectional research design and a myriad of unrelated variables. This study represents an important step towards the development of a true theory of "ecology". More specifically, we argue that …
Does Success For All Impact Reading Achievement Of Students With Learning Disabilities?, Stacey Smith-Davis
Does Success For All Impact Reading Achievement Of Students With Learning Disabilities?, Stacey Smith-Davis
Electronic Theses and Dissertations
This dissertation seeks an answer to the question: "Will students with learning disabilities who were provided reading instruction through the Success For All reading program demonstrate higher reading achievement on selected reading assessments (Florida Comprehensive Assessment Test and the Qualitative Reading Inventory-3) than the students with learning disabilities who were provided reading instruction through other reading programs?" Determining the impact of the Success For All reading program on reading assessment scores will add to the research about effective reading instruction methods for use with students with learning disabilities. The target population of this study was third grade students with learning …
Broken Open, Taylor Kistler Stannard
Broken Open, Taylor Kistler Stannard
Electronic Theses and Dissertations
Broken Open is a collection of short stories, four of which deal with culpability and the unexpected transformations that occur when blame, either unintended or deliberately invoked, is exposed and finally understood. The remaining two stories concern relationships that turn out to be gifts, as well as painful learning experiences. In "Other Living Creatures," one family contends with post traumatic stress disorder as another implodes following the death of a young soldier in Vietnam. "Hunters" deals with the unconscious motivations that leave a father resentful and unable to forge a relationship with his son. In "Bardenbrook," an accidental death is …
Characterization Of Pigment Cell Specific Genes In The Sea Urchin Embryo (Strongylocentrotus Purpuratus), Tricia Stephens
Characterization Of Pigment Cell Specific Genes In The Sea Urchin Embryo (Strongylocentrotus Purpuratus), Tricia Stephens
Electronic Theses and Dissertations
In sea urchin development, cell fate specification appears by the 60-cell stage embryo when several embryonic territories are recognized: the small micromeres, the large micromeres which will generate primary mesenchyme cells, the vegetal2 layer that will give rise to pigment cells, immunocytes, and muscle cells, the vegetal1 layer, as well as the oral and aboral ectoderm. A Delta-Notch signaling event is required for the differential specification of mesodermal cells that will give rise to secondary mesenchyme cells (SMCs). SMCs produce four cell types: pigment cells, blastocoelar cells, circumesophageal muscle cells, and coelomic pouch cells. Pigment cells are the first to …
Behavior Of Variable-Length Genetic Algorithms Under Random Selection, Harold Stringer
Behavior Of Variable-Length Genetic Algorithms Under Random Selection, Harold Stringer
Electronic Theses and Dissertations
In this work, we show how a variable-length genetic algorithm naturally evolves populations whose mean chromosome length grows shorter over time. A reduction in chromosome length occurs when selection is absent from the GA. Specifically, we divide the mating space into five distinct areas and provide a probabilistic and empirical analysis of the ability of matings in each area to produce children whose size is shorter than the parent generation's average size. Diversity of size within a GA's population is shown to be a necessary condition for a reduction in mean chromosome length to take place. We show how a …
Responses Of Small Rodents To Restoration And Management Techniques Of Florida Scrub At Cape Canaveral Air Force Station, Florid, Alexis Suazo
Electronic Theses and Dissertations
Proper habitat management is essential for the survival and reproduction of species, especially those listed under state or federal laws as endangered, threatened or of special concern, and those with small local populations. Land managers use a combination of mechanical cutting and prescribed burning to manage and restore degraded scrub habitat in east central Florida. This approach improves habitat for the endangered Florida scrub-jay (Aphelocoma coerulescens), but little is known about its effects on other taxa, especially the threatened southeastern beach mouse (Peromyscus polionotus niveiventris). This single species approach may not be beneficial to other taxa, and mechanical cutting and …
Airport Security: Examining The Current State Of Acceptance Of Biometrics And The Propensity Of Adopting Biometric Technology Fo, Kristine Sumner
Airport Security: Examining The Current State Of Acceptance Of Biometrics And The Propensity Of Adopting Biometric Technology Fo, Kristine Sumner
Electronic Theses and Dissertations
The terrorist attacks of September 11, 2001 propelled the issue of aviation security to the forefront of the U.S. domestic agenda. Although hundreds of individual airports exist in the U.S., the travel activities at each of these airports combine to holistically comprise an aviation system that represents a significant portion of the U.S. social and economic infrastructure. Disruption at one airport resulting from a criminal act, such as terrorism, could exert detrimental effects upon the aviation system and U.S national security (9/11 Commission, 2004). Each U.S. airport is individually responsible for various aspects of security including the control of physical …
Nonlinear Optical Properties Of Organic Chromophores Calculated Within Time Dependent Density Functional Theory, Sergio Tafur
Nonlinear Optical Properties Of Organic Chromophores Calculated Within Time Dependent Density Functional Theory, Sergio Tafur
Electronic Theses and Dissertations
Time Dependent Density Functional Theory offers a good accuracy/computational cost ratio among different methods used to predict the electronic structure for molecules of practical interest. The Coupled Electronic Oscillator (CEO) formalism was recently shown to accurately predict Nonlinear Optical (NLO) properties of organic chromophores when combined with Time Dependent Density Functional Theory. Unfortunately, CEO does not lend itself easily to interpretation of the structure activity relationships of chromophores. On the other hand, the Sum Over States formalism in combination with semiempirical wavefunction methods has been used in the past for the design of simplified essential states models. These models can …
Defining A Character Through Voice Quality: An Analysis Of The Character "George" In Sondheim And Lapine's Sunday In The Park With George Using The Estill Voice Model, Michael Swickard
Electronic Theses and Dissertations
This thesis explores the use of the Estill Voice Model, in particular six voice qualities (Speech, Twang, Falsetto, Cry/Sob, Belt and Opera) and their permutations, to define character, character traits and emotions. Traits and emotions that specific voice qualities can influence are, but are not limited to, location, age, background, socioeconomic status, genre, intelligence, nationality, class, culture, gender, promiscuity, disposition, pain and revelations. In particular, this thesis explores the use of voice qualities to show specific human qualities of the character "George" from Sondheim and Lapine's "Sunday in the Park with George" and the people he imitates in his painting …
The Effects Of Trivalent Arsenicals And Thioredoxin Reductase Inhibitors On Selenium Metabolism In Lung Cell Culture Models, Sarah Ryann Talbot
The Effects Of Trivalent Arsenicals And Thioredoxin Reductase Inhibitors On Selenium Metabolism In Lung Cell Culture Models, Sarah Ryann Talbot
Electronic Theses and Dissertations
Arsenic exposure, through various routes, is associated with the development of cancer of the skin, lung, liver, kidney, and bladder. Treatment of cells in culture with trivalent arsenicals has been shown to increase reactive oxygen species (ROS). In particular, monomethylarsonous acid (MMAIII), a trivalent metabolite of arsenite, is highly cytotoxic and possibly carcinogenic. Three trivalent arsenicals; arsenite, arsenic trioxide (ATO), and MMAIII, are also known inhibitors of the selenoprotein thioredoxin reductase (TrxR). Selenium, an essential micronutrient in mammals, is needed in the form of selenocysteine for activity of this enzyme and other selenoproteins. TrxR is part of a key component …
A Multi-Layer Fpga Framework Supporting Autonomous Runtime Partial Reconfiguration, Heng Tan
A Multi-Layer Fpga Framework Supporting Autonomous Runtime Partial Reconfiguration, Heng Tan
Electronic Theses and Dissertations
Partial reconfiguration is a unique capability provided by several Field Programmable Gate Array (FPGA) vendors recently, which involves altering part of the programmed design within an SRAM-based FPGA at run-time. In this dissertation, a Multilayer Runtime Reconfiguration Architecture (MRRA) is developed, evaluated, and refined for Autonomous Runtime Partial Reconfiguration of FPGA devices. Under the proposed MRRA paradigm, FPGA configurations can be manipulated at runtime using on-chip resources. Operations are partitioned into Logic, Translation, and Reconfiguration layers along with a standardized set of Application Programming Interfaces (APIs). At each level, resource details are encapsulated and managed for efficiency and portability during …
Vacancy Engineered Doped And Undoped Nanocrystalline Rare Earth Oxide Particles For High Temperature Oxidation Resistant Coating, Ranjith Thanneeru
Vacancy Engineered Doped And Undoped Nanocrystalline Rare Earth Oxide Particles For High Temperature Oxidation Resistant Coating, Ranjith Thanneeru
Electronic Theses and Dissertations
Rare earth oxides with trivalent lattice dopants have been of great interest to researchers in the recent years due to its potential applications in catalysis and high temperature protective coatings. The ability to store oxygen in rare earths is the basis for catalysis because of the ability to change valence states which causes the presence of intrinsic oxygen vacancies in the crystal lattice. Although, several doped-rare earth oxide systems in micron scale have been investigated, the doping effect in cerium oxide nanoparticles with well characterized particle size has not been studied. The doping of ceria at that small size can …
Accomplishment Of Dual Focus In Exploration And Exploitation: The Influential Role Of The Customer Relationship Management (Crm, Janet Tinoco
Electronic Theses and Dissertations
Organizations that can successfully develop both radical and incremental innovations positively impact sustained competitive advantage, dramatically improving their chances of survival and success in both dynamic and stable environments (Han et al. 2001; Tushman and O'Reilly 1996). Experimentation and radical innovation are mandatory knowledge assets for competitive play in emerging markets, but efficiency and incremental innovation are essential for mature markets (He and Wong 2004; Tushman and O'Reilly 1996). The attainment of dual focus between radical and incremental innovation is challenging and calls for organizational architectures of sometimes conflicting processes, structure, and culture (cf, Tushman and O'Reilly 1996; Wind and …
Discovering My Artistic Voice Through The Stage Adaptation Of Winners Don't Quit, Evelyn Tyler
Discovering My Artistic Voice Through The Stage Adaptation Of Winners Don't Quit, Evelyn Tyler
Electronic Theses and Dissertations
The writings of this thesis will expose the recent account of an actor's journey while working as a writer, director, & actress. Historical facts, journal entries, personal cast photos, an excerpt of the WDQ script, highlights of the first excerpt premiere of Winners Don't Quit, and so much more are just a few features this thesis uncovers while relating to the actress process as she discovers her artistic voice. Instead of finding an acting opportunity she's created one for herself, and other aspiring artists. The scope of the research was done on a local and national level featuring a collection …
Analytical Evaluation Of The Fluorescence Characteristics Of Metabolites Of Polycyclic Aromatic Hydrocarbons At Room, Liquid Nitrogen And Liquid Helium Temperatures, Keerthika Vatsavai
Analytical Evaluation Of The Fluorescence Characteristics Of Metabolites Of Polycyclic Aromatic Hydrocarbons At Room, Liquid Nitrogen And Liquid Helium Temperatures, Keerthika Vatsavai
Electronic Theses and Dissertations
Although environmental monitoring of polycyclic aromatic hydrocarbons (PAH) is an essential step to prevent human exposure to contaminated sites, it provides little information on the actual human uptake and subsequent risks. To this end, urine analysis of short-term biomarkers such as PAH metabolites fill an important niche. The general approach follows the sequence of urine hydrolysis, sample clean-up and pre-concentration, chromatographic separation and determination. Whereas chromatographic methods are based on well established laboratory techniques, the development of easy-to-use, cost-effective and large sample throughput techniques is becoming increasingly relevant to investigate adverse PAH effects on large human populations. This thesis compares …
Microwave Synthesis Of Nanocrystalline Hydroxy Apatite And Comparison Of Its Biomechanical Properties With Tio2 Structures, Saurabh Verma
Microwave Synthesis Of Nanocrystalline Hydroxy Apatite And Comparison Of Its Biomechanical Properties With Tio2 Structures, Saurabh Verma
Electronic Theses and Dissertations
Nanocrystalline hydroxyapatite (HAp) powder of size 10-20 nm was synthesized applying microwave radiation using calcium nitrate tetrahydrate and sodium phosphate dibasic anhydrous as the starting materials. Microwave power of 600 W and Ca/P ratio of 1.66 in the starting chemicals served as the major factors in the synthesis of nanocrystalline HAp powder. Phase composition and evolution were studied using X-ray diffraction (XRD) technique. Morphology, agglomeration and particle-size of the synthesized powder were studied using Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM) techniques. Energy Dispersive Spectrum (EDS) was used to determine the elemental composition of the powder. Thermal properties …
Plasma Processing For Retention Of Nanostructures, Viswanathan Venkatachalapathy
Plasma Processing For Retention Of Nanostructures, Viswanathan Venkatachalapathy
Electronic Theses and Dissertations
Plasma spray processing is a technique that is used extensively in thermal barrier coatings on gas and steam turbine components, biomedical implants and automotive components. Many processing parameters are involved to achieve a coating with certain functionality. The coating could be required to function as thermal barrier, wear resistant, corrosion resistant or a high temperature oxidation resistant coating. Various parameters, such as, nozzle and electrode design, powder feeding system, spray distances, substrate temperature and roughness, plasma gas flow rates and others can greatly alter the coating quality and resulting performance. Feedstock (powder or solution precursor) composition and morphology are some …
Shock-Tube Investigation Of Ignition Delay Times Of Blends Of Methane And Ethane With Oxygen, Brian Christopher Walker
Shock-Tube Investigation Of Ignition Delay Times Of Blends Of Methane And Ethane With Oxygen, Brian Christopher Walker
Electronic Theses and Dissertations
The combustion behavior of methane and ethane is important to the study of natural gas and other alternative fuels that are comprised primarily of these two basic hydrocarbons. Understanding the transition from methane-dominated ignition kinetics to ethane-dominated kinetics for increasing levels of ethane is also of fundamental interest toward the understanding of hydrocarbon chemical kinetics. Much research has been conducted on the two fuels individually, but experimental data of the combustion of blends of methane and ethane is limited to ratios that recreate typical natural gas compositions (up to ~20% ethane molar concentration). The goal of this study was to …
A Study Of Equatorial Ionopsheric Variability Using Signal Processing Techniques, Xiaoni Wang
A Study Of Equatorial Ionopsheric Variability Using Signal Processing Techniques, Xiaoni Wang
Electronic Theses and Dissertations
The dependence of equatorial ionosphere on solar irradiances and geomagnetic activity are studied in this dissertation using signal processing techniques. The statistical time series, digital signal processing and wavelet methods are applied to study the ionospheric variations. The ionospheric data used are the Total Electron Content (TEC) and the critical frequency of the F2 layer (foF2). Solar irradiance data are from recent satellites, the Student Nitric Oxide Explorer (SNOE) satellite and the Thermosphere Ionosphere Mesosphere Energetics Dynamics (TIMED) satellite. The Disturbance Storm-Time (Dst) index is used as a proxy of geomagnetic activity in the equatorial region. The results are summarized …
Cognitive Learning From Computer-Based Information Systems By Incorporating Knowledge Construction Interventions, Wajdi Wazzan
Cognitive Learning From Computer-Based Information Systems By Incorporating Knowledge Construction Interventions, Wajdi Wazzan
Electronic Theses and Dissertations
The aim of the present study was to develop and empirically evaluate different categories of instructional activities, which stimulate the generation and construction of knowledge on the part of an individual student. These generative activities are primed by prompts or scaffolds, which can easily be inserted into specific curriculum addressing any domain of knowledge. To assess the manner in which the knowledge construction interventions influence the learning outcomes from computerized information systems, we have developed an online computer-based information system that describes the functions and mechanisms associated with the bus system of the US army Abrams M1A2 tank. Seven versions …
The Effect Of In-Vehicle Warning Systems On Driverresponse In Work Zones, James James Whitmire Ii
The Effect Of In-Vehicle Warning Systems On Driverresponse In Work Zones, James James Whitmire Ii
Electronic Theses and Dissertations
This research investigated the effectiveness of in-vehicle information technologies on driver behavior in work zones. In-vehicle information devices can increase driver awareness to an oncoming change in traffic flow and provide specific guidelines for driving speed requirements, lane merging strategies, or unexpected changes in the roadway (e.g., detours and lane shifts). The overall conditional effects for vehicle speed are significant; that is, both the audio and visual groups out performed the control group within the simulated work zone. Participants in audio group did outperform the visual group, not significantly though. The overall conditional effects for total time in violation are …
Assessment Of The Contribution Of Game-Based Simulation In The Advancement Of Individual Soldier Intelligence Gathering Skills, Carlos Wiley
Assessment Of The Contribution Of Game-Based Simulation In The Advancement Of Individual Soldier Intelligence Gathering Skills, Carlos Wiley
Electronic Theses and Dissertations
Self-directed Learning Internet Modules based on gaming technology are making tremendous strides as tools to current training system for our military services. Currently, the US Army is testing the Every Soldier is a Sensor Simulation software (ES3) as part of the Every Soldiers a Sensor program that focuses on intelligence gathering and maintaining situational awareness. The primary training goal of this simulation is the training of individual soldiers on conducting "Active Surveillance" and "Threat Indicator Identification" where the soldier is an active participant in the process. Traditional training in intelligence gathering is based largely on cold war models. As a …
The Relationship Between Admission Credentials And The Success Of Students Admitted To A Physics Doctoral Program, Teresa Wilkerson
The Relationship Between Admission Credentials And The Success Of Students Admitted To A Physics Doctoral Program, Teresa Wilkerson
Electronic Theses and Dissertations
The researcher developed this study based on the Hardgrave, et al. (1993)statement that for a doctoral student, it was "more than just standardized scores, previous academic performance, and past work experience ultimately affects whether the candidate will be successful in the program" (p. 261). This study examined both the subjective and quantifiable aspects of application materials to a physics doctoral program to explore potential relationships between the credentials presented in the application and the ultimate success of the admitted students. The researcher developed questions with the goals of addressing the problem of attrition in doctoral programs and gaining a better …