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The Extent Of Social Disparities In Black And Hispanic Neighborhoods, Monique Coleman Jan 2013

The Extent Of Social Disparities In Black And Hispanic Neighborhoods, Monique Coleman

Planning Theses - Archive

The argument of race and segregation is an age-old debate. Nevertheless, in 2013 there are still segregated black and Hispanic neighborhoods experiencing high levels of poverty despite the Fair Housing Act, inclusionary housing practices, and other methods that strive to create mixed-income and mixed-race neighborhoods. Since segregation appears to be a phenomenon that eludes a simple explanation, this research offers to shed light on the subject matter and guide others researching the subject matter to help ascertain the root(s) of social disparities in minority neighborhoods. This report is an extensive review of 2007-2011 American Community Survey (ACS) data for Dallas …

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Real Time Motion Control For Natural Human Robot Interaction, Suresh Sampathkumar Jan 2013

Real Time Motion Control For Natural Human Robot Interaction, Suresh Sampathkumar

Electrical Engineering Theses - Archive

In this thesis, we present the research work performed with various robots including Android PKD, Zeno and the Atlas robot. The main focus of this thesis is to develop algorithms for vision based natural human robot interaction in real time. Zeno is a childlike robot that we use for the research related to Autism in children. Children with Autism who lack motor skills tend to shy away from humans. In this project we use the robot Zeno that is capable of facial expressions, arm and body motions to teach motor skills to them. For this purpose we developed a program …

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Transfer-Printed Photonic Crystal Nanomembrane Fano Resonance Filters And Modulators, Yi-Chen Shuai Jan 2013

Transfer-Printed Photonic Crystal Nanomembrane Fano Resonance Filters And Modulators, Yi-Chen Shuai

Electrical Engineering Dissertations - Archive

This dissertation presents the research work on photonic crystal nanomembrane Fano resonance devices based on transfer printing techniques. Ultra-compact high quality (Q) factor optical filters have been design, fabricated, and characterized based on single-layer and coupled double-layer photonic crystal slabs (PCS). Optical filters have also been designed and investigated for potentially high speed spatial lighting modulations. Fano resonance membrane reflectors with operation wavelength bands cover from near-infrared to mid and far-infrared have also been fabricated based on both reaction ion-etching and magnetic field guided metal-assisted chemical etching processes.Based on crystalline semiconductor nanomembrane transfer printing technique, we designed and experimentally demonstrated …

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Cmos Analog Correlator Based Glucose Sensor Readout Circuit, Varun K. Shenoy Jan 2013

Cmos Analog Correlator Based Glucose Sensor Readout Circuit, Varun K. Shenoy

Electrical Engineering Dissertations - Archive

Recent investigations show research and development of alternative methods of glucose sensing using electrochemical biosensors to help significantly reduce the difficulties associated with treating diabetes. The integration of microelectronic circuit technology with biosensors is generating greater research interest. The advantages of small size and less power consumption of integrated circuits (ICs) are helping with the realization of biosensors for improved performance. The major challenges involving designing of readout ICs for the electrochemical biosensors are accuracy and range. In this research work, an analog correlator based readout circuit for amperometric glucose electrochemical biosensors is designed and implemented. It is designed to …

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Predictors Of Adjustment To September 11th, 2001 And The Anthrax Attacks, Jeffrey Nathanael Swanson Jan 2013

Predictors Of Adjustment To September 11th, 2001 And The Anthrax Attacks, Jeffrey Nathanael Swanson

Psychology Dissertations - Archive

While the effects of September 11th, 2001 have been heavily studied, effects of the Anthrax attacks that directly followed has not been a widespread focus of research. This set of events, however, may be more representative of terrorism as it exists across the world, and there is both theoretical and empirical evidence indicating that responses to the Anthrax attacks may be worse than to 9/11. The following secondary data analysis was conducted to identify factors that predict adjustment to the Anthrax attacks among individuals with only vicarious exposure. Based on available empirical and theoretical data, it was hypothesized that individual …

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Repeated Decision-Making With High And Low Affect For Monetary And Social Resources, Patrick A. Ramirez Jan 2013

Repeated Decision-Making With High And Low Affect For Monetary And Social Resources, Patrick A. Ramirez

Psychology Dissertations - Archive

This research was a continuation of studies that considered the role of affect for repeated decision-making under two different conditions while maintaining similar magnitudes of gains and losses. For the two situations the resources at risk (life versus money) are deemed to be high or low in affect. These designations are relevant because past findings have shown systematic deviation in choices on single-shot or one time gambles for resources based on levels of affect associated with the potential prize. This research considers possible ceiling effects in self reports about pleasure and displeasure and considers behavior assessments of negative affect as …

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Measuring Corporate Social Responsibility Through Organizational Values: A Scale Validation Study, Adria D. Toliver Jan 2013

Measuring Corporate Social Responsibility Through Organizational Values: A Scale Validation Study, Adria D. Toliver

Psychology Dissertations - Archive

There is increasing interest in corporate social responsibility among researchers and practitioners. The corporate social responsibility construct has been around for several decades, but recent public corporate scandals have brought corporate social responsibility back to the forefront of many discussions. The most prominent conceptualization of corporate social responsibility suggests that an organization has economic, legal, ethical, and philanthropic responsibilities to fulfill (Carroll, 1979). The problem with current models of corporate social responsibility is that they are skewed towards the financial responsibility of an organization. Although this is one important aspect of an organization's responsibilities, it is not the only or …

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Missed Identity: Collective Memory, Adina De Zavala, And The Tejana Heroine Who Wasn't, Suzanne Seifert Cottraux Jan 2013

Missed Identity: Collective Memory, Adina De Zavala, And The Tejana Heroine Who Wasn't, Suzanne Seifert Cottraux

History Theses - Archive

As greater attention is paid to Hispanic and Tejano contributions to Southwest history, many journalists, Tejano activists, and even historians have commandeered Adina De Zavala's life and legacy as an example of Tejano leadership and accomplishment. The grand-daughter of Texas's first interim vice president, Lorenzo de Zavala, Adina dedicated her ninety-three-year life to ensuring Texas's early history would not be forgotten amidst the state's explosive commercial growth. A reverent Catholic, she devoted her efforts to the preservation of the Spanish missions and corresponding histories in and around San Antonio that pre-dated Texas independence from Mexico, with a special concentration on …

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Atomic And Molecular Adsorptions Of Hydrogen And Oxygen On Silicon Nanotubes: An Ab Initio Study, Haoliang Chen Jan 2013

Atomic And Molecular Adsorptions Of Hydrogen And Oxygen On Silicon Nanotubes: An Ab Initio Study, Haoliang Chen

Physics Dissertations - Archive

A systematic ab initio study of silicon nanotubes (SiNTs) in single-walled, double-walled armchair and zigzag configurations will be presented. Electronic and structural properties of all these nanostructures have been calculated using hybrid density functional B3LYP and 3-21G* basis set as implemented in the GAUSSIAN 03/09 suite of software. The binding energy increases as diameter of the nanotube increases generally for both armchair and zigzag SiNTs. The HOMO-LUMO gaps of the armchair and zigzag SiNTs are in the range from 0.20 to 1.81 eV and do not show any metallic behavior. Radial buckling calculations indicate that the armchair SiNTs all have …

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Predicting A New Quaternary Photocatalyst Suitable For Pec Process To Produce Hydrogen And Determnation Of Its Structural, Electronics, And Optical Properties Using Density Functional Theory, Pranab Sarker Jan 2013

Predicting A New Quaternary Photocatalyst Suitable For Pec Process To Produce Hydrogen And Determnation Of Its Structural, Electronics, And Optical Properties Using Density Functional Theory, Pranab Sarker

Physics Theses - Archive

Our present work represents a comprehensive theoretical and computational research in quest for predicting new photocatalysts suitable for photoelectrochemical process (PEC) to produce hydrogen by splitting water. We predict a new photocatalyst, CuBiW₂O₈ that exhibits some promising photocatalytic features seemed elusive to date. It is well known that all physical properties are calculated once ground state structure is known. However, knowing crystal structure is extremely challenging and was considered unpredictable before the material is synthesized. Our density functional theory (DFT) determines the crystal structure of CuBiW₂O₈ to be monoclinic which was later found energetically equivalent to its experimental counterpart. In …

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The Electronic Properties Of Noble Metal Doped Silicon Nanocrystals Using Hybrid Density Functional Theory, Cedric Leon Mayfield Jan 2013

The Electronic Properties Of Noble Metal Doped Silicon Nanocrystals Using Hybrid Density Functional Theory, Cedric Leon Mayfield

Physics Theses - Archive

One of the most challenging issues in semiconductor physics is to engineer band structures for a particular device. Contemporary photovoltaic (PV) and photoelectrochemical (PEC) devices rely on defect energy levels and nano-scaling to customize their band structures. As the length scale of a material becomes comparable to the exciton Bohr radius the free particle behavior of charge carriers transition to bound states where energy levels are quantized. In this thesis, hybrid density functional theory has been used to study the electronic properties of silicon nanocrystals (SiNCs) having 75, 150 and 300 silicon atoms. The atomic coordinates were defined by two …

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A Numerical Study Of Incompressible Fluid Flow Over A Forward Facing Step At Various Grades, Peter Andrew Martinez Jan 2013

A Numerical Study Of Incompressible Fluid Flow Over A Forward Facing Step At Various Grades, Peter Andrew Martinez

Mechanical and Aerospace Engineering Theses - Archive

The study of the effect of natural forces on hydraulic structures is of great concern for the accurate prediction of when a design could be at risk of failure. In recent times the use of the shallow water equations to predict the behavior of the free surface for flow over a step has proven inaccurate because only a hydrostatic pressure distribution is considered. One of the phenomena that will not be accounted for with the shallow water equations in such a setup is the formulation of undular bore type waves on the surface. In order for a more accurate representation …

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Design, Fabrication And Test Of Surface Tension-Driven Microboats And Thermally Oscillatory Bubble-Propelled Microsubmarines, Lei Qiao Jan 2013

Design, Fabrication And Test Of Surface Tension-Driven Microboats And Thermally Oscillatory Bubble-Propelled Microsubmarines, Lei Qiao

Mechanical and Aerospace Engineering Dissertations - Archive

In this work, we develop microboats and microsubmarines, which are capable of moving on and under water, respectively. The microboat is propelled due to the difference between surface tensions around stern and bow. This difference is generated by releasing a liquid with lower surface tension than water from the stern. We explore both horizontal and vertical motions of the microboats through a combination of experimental and theoretical investigations. It has a length of 8 mm and weight of 20 mg with the highest speed of 25 cm/s and travel distance of 85 cm. Moreover, we design, fabricate and test microboats …

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Effect Of Suction On Dynamic Properties Of Unsaturated Soils At Mid- To High-Shear Strain Amplitudes, Alejandro Hernan Pino Bravo Jan 2013

Effect Of Suction On Dynamic Properties Of Unsaturated Soils At Mid- To High-Shear Strain Amplitudes, Alejandro Hernan Pino Bravo

Civil Engineering Theses - Archive

This paper presents the results from an experimental study that has been designed to assess the effect of the suction and net mean stress on the dynamic properties of poorly graded sand with silt subjected to small- to mid-shear strains. The practical implication of this study includes determining the effect on soil stiffness properties of increased matric suction (transpiration of water) at different net mean stresses (or depths) in the field. The engineering analysis of earth structures subjected to static and non-static loading under unsaturated conditions requires knowing the relevant parameters of the soil, such as shear wave velocity, shear …

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Lrfd Pullout Resistance Factor Calibration For Soil Nails Incorporating Survival Analysis And Plaxis 2d, Brett Devries Jan 2013

Lrfd Pullout Resistance Factor Calibration For Soil Nails Incorporating Survival Analysis And Plaxis 2d, Brett Devries

Civil Engineering Theses - Archive

The use of soil nail walls (SNWs) in the United States has increased since their introduction in the mid-1970's, to where currently the analysis, design and construction are commonly performed (Lazarte, 2011). These SNW designs were mostly based on ASD methods and LRFD-based methodologies were lacking until the 1998 FHWA manual on SNW design (Byrne, Cotton, Porterfield, Wolschlag and Ueblacker, 1998), which provided uncalibrated resistance factors developed from ASD safety factors. As a result, little improvement was made toward a more efficient design, until fully calibrated LRFD pullout resistance factors were provided in the NCHRP Report 701 (Lazarte, 2011). These …

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The Structure Of Jarai Clauses And Noun Phrases, Joshua Martin Jensen Jan 2013

The Structure Of Jarai Clauses And Noun Phrases, Joshua Martin Jensen

Linguistics & TESOL Dissertations - Archive

This dissertation provides a syntactic account for the Jarai noun phrase and for the three regions of the Jarai clause: the operator domain, the inflectional domain, and the theta domain. Within the noun phrase, I argue that demonstrative-final word order involves phrasal movement of the demonstrative's complement into Spec,D, where it identifies null definite D. Jarai classifiers, rather than being heads in the functional spine of the DP, are shown to form a constituent with numerals, and this classifier--numeral phrase merges as the specifier of a number (plurality) head. In the operator domain, three head positions can be identified: a …

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A Corpus-Based Analysis Of Discourse Anaphora In English And Korean: A Neo-Gricean Pragmatic Approach, Sok-Hun Kim Jan 2013

A Corpus-Based Analysis Of Discourse Anaphora In English And Korean: A Neo-Gricean Pragmatic Approach, Sok-Hun Kim

Linguistics & TESOL Dissertations - Archive

This dissertation explores discourse anaphora in English and Korean by using a neo-Gricean pragmatic approach with corpus-based data. Very little study of Korean discourse anaphora has yet taken place at the inter-sentential level, except works looking at zero anaphor and a logophoric reflexive pronoun caki`self'. This research fills this gap by examining two types of discourse anaphora at the discourse level: discourse anaphoric patterns (by order of mention of the referent and by placement of the paragraph) and sentential anaphors. Two quantitative methods were adopted to verify the distribution and the selection of anaphora: natural data collection and a survey. …

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Form Interference Effects During Silent Reading, Iya Khelm, Naoko Witzel, Jeffrey Witzel Jan 2013

Form Interference Effects During Silent Reading, Iya Khelm, Naoko Witzel, Jeffrey Witzel

Linguistics & TESOL Faculty Publications & Presentations - Archive

Although many studies have shown that phonological repetition causes reading comprehension difficulties, the nature of these processing costs remains unclear. Purpose of the study: to shed light on this issue by examining (i) the time-course of form interference effects, (ii) the interaction of these effects with syntactic processing difficulty, (iii) the extent to which these effects relate to phonological or orthographic overlap.

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Evaluation Of Provider Strategies To Promote Adherence To Childhood Obesity Clinical Guidelines, Gigi T. Thomas Jan 2013

Evaluation Of Provider Strategies To Promote Adherence To Childhood Obesity Clinical Guidelines, Gigi T. Thomas

Doctor of Nursing Practice (DNP) Scholarly Projects - Archive

The American population is rapidly becoming ethnically diverse with an increase in Hispanics. As the number of Hispanics increase, so is the prevalence of obesity among Hispanic children, adolescents, and adults, indicating a need for early prevention. Regardless of guidelines from an array of professional organizations, translating evidence-based research into practice remains a challenge for providers. The purpose of this study is to examine how a practice intervention influences provider adherence to childhood obesity guidelines on preventing, assessing, and treating obesity among Hispanic children ages 6 to 12 years old. The practice intervention consisted of provider awareness of current practice …

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Written Asthma Action Plan (Wap): An Educational Color-Coded Bilingual Pictorial Pediatric Asthma Action Plan, Kathy Thompson Jan 2013

Written Asthma Action Plan (Wap): An Educational Color-Coded Bilingual Pictorial Pediatric Asthma Action Plan, Kathy Thompson

Doctor of Nursing Practice (DNP) Scholarly Projects - Archive

Refer to the document.

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The Correspondence Theory Of Truth: The Root Cause Of Fundamentalism In America, Peyton Mclain Tune Jan 2013

The Correspondence Theory Of Truth: The Root Cause Of Fundamentalism In America, Peyton Mclain Tune

Philosophy & Humanities Theses - Archive

Christian fundamentalism in America is alive and well and serves as an impediment to the progress of a democratic society because of its tendency to seek universal subordination of all truth to "Biblical truth". In this paper I argue the source of strength for the resilience of this religious movement comes from their implicit adherence to the correspondence theory of truth as they apply it to their interpretation of the Bible. Furthermore, I will argue Richard Rorty's attack on the correspondence theory of truth provides a challenge to fundamentalism and reveals an alternative to fundamentalists who might join him in …

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Transitions In Public Administration Theory Through Presidential Approaches To Healthcare Policy, Clifford Smith Blumberg Jan 2013

Transitions In Public Administration Theory Through Presidential Approaches To Healthcare Policy, Clifford Smith Blumberg

Public Affairs Theses - Archive

Through interdisciplinary research of twelve presidential administrations and their various approaches to national healthcare policy, a better understanding of the borderless transitions (which I term "melting points") within Public Administration Theory can be pursued. Can key components or characteristics of these transitions in Public Administration be revealed through a President's approach to healthcare policy?

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Community Garden Suitability Analysis For A South Dallas Community, Tiffany Mcleod Jan 2013

Community Garden Suitability Analysis For A South Dallas Community, Tiffany Mcleod

Public Affairs Theses - Archive

Community gardens have been proposed as a solution to combat the ongoing and escalating food desert problem in low-income communities. As planners, community leaders and residents look to implement this solution and convert vacant property into gardens they need to be aware of the potential conflicts that can arise when the area starts to develop. This paper offers an analysis tool and uses it to determine vacant sites that are appropriate for community gardens in a particular South Dallas neighborhood that do not conflict with the future development of the area. It also identifies the grocery store gap in the …

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Effects Of Discrete Time Delays And Parameters Variation On Dynamical Systems, Ibrahim Oumar Diakite Jan 2013

Effects Of Discrete Time Delays And Parameters Variation On Dynamical Systems, Ibrahim Oumar Diakite

Mathematics Dissertations - Archive

To understand the effects of discrete time delays and of parameters variation on certain biological system models, we first consider a Delay Differential Equation model of human immunodeficiency virus (HIV). We investigate the effects of the discrete time on the virulence of the HIV strain, and present sufficient and necessary condition for the virulence of the pathogen to change as the time delay changes. We also consider the same delay differential model for HIV infection, and we investigate analytically and numerically the stability of the endemically infected equilibrium. Our analysis shows that certain key parameters, such as the rate of …

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Haplotype-Based Statistical Inference For Case-Control Genetic Association Studies With Complex Sampling, Daoying Lin Jan 2013

Haplotype-Based Statistical Inference For Case-Control Genetic Association Studies With Complex Sampling, Daoying Lin

Mathematics Dissertations - Archive

With the advances in human genome research, it is now believed that the risks of many complex diseases are triggered by the interplay of genetic susceptibilities and environmental exposures. The population-based case-control study (PBCCS) is widely used to investigate the role of genetic variants and environmental exposures in the etiology of complex diseases. There are numerous ways to implement the selection process of cases and controls. In its simplest form, a simple random sampling (SRS) design is used to choose cases and controls from diseased and disease-free population, respectively. Though SRS is easy to conduct and relevant statistical methodologies are …

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The Polynomial Chaos Method With Applications To Random Differential Equations, Juan Antonio Licea Salazar Jan 2013

The Polynomial Chaos Method With Applications To Random Differential Equations, Juan Antonio Licea Salazar

Mathematics Dissertations - Archive

The role of randomness in mathematical models is of paramount importance, with emphasis placed upon the accuracy and reliability of predictions a rational approach is the use of differential equations with random parameters to describe natural phenomena. Well known methods such as Monte Carlo methods and the method of moments have been implemented to approximate the solutions to random differential equations in the last few decades. In this work, analytic solutions to a particular Riccati type dierential equation and discrete delay dierential equation with random coefficients are derived, also, due to its spectral rate of convergence and simplicity, the polynomial …

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Numerical Studies For M-Matrix Algebraic Riccati Equations, Weichao Wang Jan 2013

Numerical Studies For M-Matrix Algebraic Riccati Equations, Weichao Wang

Mathematics Dissertations - Archive

A new doubling algorithm - Alternating-Directional Doubling Algorithm (ADDA) - is developed for computing the unique minimal nonnegative solution of an M-Matrix Algebraic Riccati Equation (MARE). It is argued by both theoretical analysis and numerical experiments that ADDA is always faster than two existing doubling algorithms - SDA of Guo, Lin, and Xu (Numer. Math., 103 (2006), pp. 393-412) and SDA-ss of Bini, Meini, and Poloni (Numer. Math., 116 (2010), pp. 553-578) for the same purpose. A deflation technique is then presented for an irreducible singular M-matrix Algebraic Riccati Equation (MARE). The technique improves the rateof convergence of a doubling …

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An Exploration Of Social Media's Influence In Parasocial Relationships Between Sports Fans And Sports Figures, Melinda Annette Valero Jan 2013

An Exploration Of Social Media's Influence In Parasocial Relationships Between Sports Fans And Sports Figures, Melinda Annette Valero

Communication Theses - Archive

This study used sixteen in-depth interviews with sports fans who claimed to have a favorite sports figure in order to explore parasocial relationships. Parasocial interaction theory was the framework used to explore these relationships through qualitative work. The study examined the development and maintenance of the relationship through social media, development and maintenance through media other than social media, and the possible causes of a parasocial breakup between a sports fan and a sports figure. By applying Owen's Thematic Analysis, themes were found in response to research questions regarding the development and maintenance of parasocial relationships and parasocial breakups. Findings …

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Negotiating Identity Creation Through Personal Narrative In A Christian Recovery Group, James N. Dunning Jan 2013

Negotiating Identity Creation Through Personal Narrative In A Christian Recovery Group, James N. Dunning

Communication Theses - Archive

Alcohol and substance abuse affects 23 million Americans each year and many seek treatment through mutual help groups and rehabilitation centers. Similar to Alcoholics Anonymous (AA), Celebrate Recovery (CR) is a mutual help recovery group with an emphasis on Christian identity. This study builds on previous research surrounding AA and examines how group members within CR utilize personal narrative to establish and cultivate their individual identity. Historically, Twelve Step programs such as AA and CR enable individuals to foster a new identity as members admit wrongdoings and trust in their higher power to repair their character flaws. Group members take …

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On The Concept Of Earthquake Resistant Hybrid Steel Frames, Seyed Mohammad Razavi Jan 2013

On The Concept Of Earthquake Resistant Hybrid Steel Frames, Seyed Mohammad Razavi

Civil Engineering Dissertations - Archive

The concept of hybrid steel frame system is presented in which mixtures of fully-rigid and semi-rigid steel connections are used in the 3-, 9- and 20-story SAC frames. Several different patterns and locations of semi-rigid connection replacements within the frame are examined in order to identify hybrid frames with the best seismic performance. The effective connection stiffness is identified by performing a parametric study on the initial stiffness of the semi-rigid connections. Then, the cyclic behavior of the connections with the most effective stiffness is obtained using nonlinear finite element analysis. Inelastic dynamic analyses are conducted on the proposed selected …

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