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Noninvasive Assessment Of Tumor Hypoxia Using Oxygen Sensitive Mri In Prostate Tumor Models, Rashmi Reddy Pabhathi Reddy Jan 2013

Noninvasive Assessment Of Tumor Hypoxia Using Oxygen Sensitive Mri In Prostate Tumor Models, Rashmi Reddy Pabhathi Reddy

Bioengineering Theses - Archive

A variety of solid tumors reveal oxygen deficiency as a result of rapid growth and insufficient tumor angiogenesis. Hypoxia in solid tumors appears to speed up malignant progression and metastatic potential of primary tumors thus leading to resistance against anticancer drugs and decreased response to radiotherapy.Of various in vivo non-invasive techniques to assess tumor hypoxia, oxygen-sensitive MRI (BOLD and TOLD) is an attractive and reliable option. Blood Oxygen Level Dependent (BOLD) and Tissue Oxygen Level Dependent (TOLD) MRI offer potential insight into tumor hypoxia. BOLD (Blood Oxygen Level Dependant) contrast MRI which measures R2* (1/T2*) is sensitive to endogenous paramagnetic …

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Hire For Personality, Train For Skill: The Relationship Between Cognitive And Non-Cognitive Human Capital, Desired Employee Behaviors, And Performance, Brian Martinson Jan 2013

Hire For Personality, Train For Skill: The Relationship Between Cognitive And Non-Cognitive Human Capital, Desired Employee Behaviors, And Performance, Brian Martinson

Management Dissertations - Archive

This study proposes to examine the relationship between cognitive and noncognitive human capital and work performance as mediated by desired employee behaviors. The study will also explore the moderating effects of high performance work practices (HPWPs) on this relationship. The goal of this study is to explain the distal relationship between human capital and firm performance through the more proximal relationship of the human resources practices used to manage human capital by activating individual employee behaviors. The study uses the individual level inputs of knowledge, skills, abilities, personality, and values, combined with application of HPWPs to test a set of …

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Tmt Characteristics That Position Family Firms For Success: Examining The Effects Of Human Capital, Non-Familiness, Entrepreneurial Orientation, And Transactive Memory Systems, Drake Stevenson Mullens Jan 2013

Tmt Characteristics That Position Family Firms For Success: Examining The Effects Of Human Capital, Non-Familiness, Entrepreneurial Orientation, And Transactive Memory Systems, Drake Stevenson Mullens

Management Dissertations - Archive

Entrepreneurship is critical to family firm growth, profitability, and survival (Zahra 2005); however, entrepreneurship remains understudied in the family business context (Zahra and Sharma, 2004). Limited extant research suggests family firms act less entrepreneurially than their non-family counterparts but performance enhancements result from entrepreneurial actions (Litz and Klesen, 2001). Consequently, I explored the effects of human capital and non-familiness in the top management team on the group's transactive memory system (Wegner, 1987) and the organization's entrepreneurial orientation. In my sample, human capital in the top management team was positively related to the team's transactive memory system. Similarly, human capital was …

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Development Of Non-Invasive Methods For Imaging Inflammatory Response, Yi-Ting Tsai Jan 2013

Development Of Non-Invasive Methods For Imaging Inflammatory Response, Yi-Ting Tsai

Bioengineering Dissertations - Archive

Persistent inflammatory cell reactions are responsible for the pathogenesis of a variety of inflammatory diseases. Although many non-invasive imaging methods have been used in the clinics to monitor the extent of inflammatory responses, almost all of them are based on indirect detection of inflammation-associated anatomical or structure changes of tissues and organs. To fill the gap, our laboratory has focused research efforts on detecting different processes of inflammatory responses. Our results can be summarized in the sequence of inflammatory responses - edema formation, inflammatory cell recruitment, inflammatory product release, and cell death. Shortly after medical device implantation or injury, edema …

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Kinetics Analyses Of Interactions Between Oncogenic And Tumor Suppressor Proteins By Quantitative High Resolution Microscopy Methods, Shu-Fen Tseng Jan 2013

Kinetics Analyses Of Interactions Between Oncogenic And Tumor Suppressor Proteins By Quantitative High Resolution Microscopy Methods, Shu-Fen Tseng

Bioengineering Dissertations - Archive

DAB2IP is correlated to the risk of aggressive prostate cancer and loss of DAB2IP not only leads to epithelial-to-mesenchymal transition (EMT), but also makes cells radioresistant. These observations support the notion that improved knowledge of DAB2IP involvement in cellular pathways could be of help to cancer therapy. The goal of this work was to enable the study of how DAB2IP and some of its known key molecular partners interact in the cell by a combination of molecular biology techniques and recently reported quantitative fluorescence microscopy methods. The first part of this work was dedicated on investigating the interaction of DAB2IP …

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A Qualitative Analysis Of Mexican-Immigrant Mothers' Involvement In A High-Performing Low-Income Elementary School, Isela Russell Jan 2013

A Qualitative Analysis Of Mexican-Immigrant Mothers' Involvement In A High-Performing Low-Income Elementary School, Isela Russell

Educational Leadership & Policy Studies Dissertations - Archive

This qualitative study explores how low-income first- and second-generation Mexican-immigrant mothers, the largest sub-group of the Latino population, support the academic success of their children who are in a low-income successful elementary school. The specific setting was Roosevelt Elementary located in North Texas. Participants were selected through purposeful sampling, with a total of 10 participants: six Mexican-descent mothers and four teachers. The intent is to provide an understanding of the mother's role in home-based and school-based involvement and why they are involved in the academic success of their children. Moreover, Bandura's theory (1989) of self-efficacy is selected to guide this …

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Delights And Dangers: The Pursuit Of The Oceanic In Thelma & Louise And Lost, Christine Kyle Jan 2013

Delights And Dangers: The Pursuit Of The Oceanic In Thelma & Louise And Lost, Christine Kyle

English Theses - Archive

The oceanic is a sensation of unity, eternal connectedness, and oneness with the universe. The sensation can manifest itself in a variety of ways, and it is a pervasive one which has affected many people throughout the ages; however, while the desire for this sensation and evidence of its existence are vast, it often goes unnoticed.In this paper, I explore the oceanic sensation in two contemporary visual texts: the film Thelma & Louise and the television show Lost. An understanding of the oceanic contributes valuable insights into the meaning, historical significance, and popular appeal of these two works, and, in …

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The Feminine Alternative: Men And Women In Modernist European Literature, Kara Nicole Purschwitz Jan 2013

The Feminine Alternative: Men And Women In Modernist European Literature, Kara Nicole Purschwitz

English Theses - Archive

My work examines four seminal pieces of modernist European literature: Dostoevsky's Notes from Underground, Conrad's Heart of Darkness, Gide's The Immoralist, and Woolf's Mrs. Dalloway. I show two aspects of gender representation within the characters of these novels. First, these novels follow the trend in much of canonical modernism of representing modernist traits through their male characters and pre-modern, 19th-century traits to their female characters. Second, despite this gendered representation of modernism, and at times because of it, the hegemonic gender norms for both sexes are defied.

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Implementation Of Fast Residual Quadtree Coding And Fast Intra Prediction In High Efficiency Video Coding, Sapna Vasudevan Jan 2013

Implementation Of Fast Residual Quadtree Coding And Fast Intra Prediction In High Efficiency Video Coding, Sapna Vasudevan

Electrical Engineering Theses - Archive

High Efficiency Video Coding, one of the latest video compression schemes proposed by Joint Collaborative Team on Video Coding (JCT-VC) which is a partnership between International Telecommunication Union Video Coding Experts Group (ITU T-VCEG) and International Organization for Standardization Moving Picture Experts Group (ISO/IEC MPEG), has been promoted to Final Draft International Standard (FDIS) on January 25, 2013. With three profiles: main, main10 and still-frame, it achieves far better compression ratio than already existing schemes, while maintaining visual quality.However, this superior bitrate savings is achieved at the expense of huge computational complexity which in turn means higher encoding time. One …

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Breaking Trauma's Empire: Trauma And Resolution In Boardwalk Empire And Breaking Bad, Lindsey Barlow Jan 2013

Breaking Trauma's Empire: Trauma And Resolution In Boardwalk Empire And Breaking Bad, Lindsey Barlow

English Theses - Archive

The purpose of this research is to analyze the performance of trauma and its resolutions in television, generally, and in Boardwalk Empire and Breaking Bad, specifically. The first chapter of this project analyzes Jacques Lacan's theory of trauma and introduces his terminology. In addition, the first chapter connects trauma's atemporality with Kenneth Burke's dramatistic pentad and explores Julia Kristeva's discussion of division and the abject. Subsequently, it analyzes the repetitiveness of trauma, its quilting point, and the emotion of abjection as the nature of trauma. The first chapter ends in a discussion of television's involvement with trauma, what television can …

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Investigation And Modeling Of Voltage And Current Unbalance On A Three-Phase Submersible Pump, James Andrew Reed Jan 2013

Investigation And Modeling Of Voltage And Current Unbalance On A Three-Phase Submersible Pump, James Andrew Reed

Electrical Engineering Theses - Archive

During the summer months of 2011, a North Texas subdivision experienced tripping difficulty with the submersible pump which is used to transfer water from an underground well to an above ground water storage tank. The tripping events were random in nature but occurred often. Under the suspicion that unbalanced phase voltages/currents are to blame, the local electrical cooperative sampled the line voltages/currents for several days in order to confirm the suspicions and better understand what the cause of the tripping events were. This thesis will discuss the analysis of that data and the development of a Simulink® based computer aided …

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Discriminant Processing In Multi-Class Pattern Recognition Systems, Soumitro Swapan Auddy Jan 2013

Discriminant Processing In Multi-Class Pattern Recognition Systems, Soumitro Swapan Auddy

Electrical Engineering Theses - Archive

Multi-Layer Perceptron neural network classifiers face problems when applications have numerous output classes. A major problem is the fact that the MLP discriminant values given by the MLP differ considerably from the posterior probabilities of the Bayes decision rule. A non-linear mapping technique is developed in this thesis, which warps the neural network outputs into posterior probabilities. A second problem is that when the neural network is given inputs for classes it is not trained to handle, the output discriminant values become very noisy, as compared to the values seen for correct inputs. Variance based methods are investigated for detecting …

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Implementation Of An Out-Of-The Loop Post-Processing Technique For Hevc Decoded Depth Maps, Parashar Nayana Karunakar Jan 2013

Implementation Of An Out-Of-The Loop Post-Processing Technique For Hevc Decoded Depth Maps, Parashar Nayana Karunakar

Electrical Engineering Theses - Archive

When depth-maps are compressed using the existing video codecs, the compression artifacts introduce distortions in the rendered views. To get better rendering, it is important to get rid of these compression artifacts. The thesis achieves this by using a post-processing frame-work on HEVC decoded depth maps. The proposed method is based on compression artifact analysis of depth maps. It implements a post-processing filter frame-work with an edge-adaptive joint trilateral filter [43] which can effectively minimize the effects of compression artifacts from the HEVC decoded depth-maps. The rendered views before and after applying the post-processing filter are compared with respect to …

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A Two Stage, Three Step Approach To Mobile Robot Path Planning And Control, John Robert Konderla Jan 2013

A Two Stage, Three Step Approach To Mobile Robot Path Planning And Control, John Robert Konderla

Electrical Engineering Theses - Archive

The potential field control model provides a powerful, yet mathematically simple method to motivate a mobile robot. It is a local control method based on simple physical principles. This allows the robot to proceed toward a target while avoiding obstacles following a naturally smooth path. It ensures the robot will behave according to Newtonian principles that have been studied for centuries. The potential field model has several weaknesses however. Most of the weaknesses can be lessened through careful modification of the potential field but the success of this approach is limited. For further improvements, global methods must be employed. These …

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Efficient Hevc Loss Less Coding Using Sample Based Angular Intra Prediction (Sap), Pavan Gajjala Jan 2013

Efficient Hevc Loss Less Coding Using Sample Based Angular Intra Prediction (Sap), Pavan Gajjala

Electrical Engineering Theses - Archive

High Efficiency Video Coding (HEVC) [3] is the next generation video compression standard being jointly developed by the Joint Collaborative Team on Video Coding (JCT-VC) of ITU-T WP3/16 and ISO/IEC JTC 1/SC 29/WG 11. The loss less coding is prominent in real-time applications like automotive vision, video conferencing and in web collaboration for remote desktop sharing. HEVC with the lossless mode can help in these applications effectively by providing content with certain level of compression when compared to other lossless compression techniques. This thesis focuses on improving the compression efficiency for the lossless coding mode of HEVC by using a …

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Enhancement Of Security And Reliability With Mimo Communication For The Smart Grid, Amit Abhimanyu Deokar Jan 2013

Enhancement Of Security And Reliability With Mimo Communication For The Smart Grid, Amit Abhimanyu Deokar

Electrical Engineering Theses - Archive

In smart grid applications, developing appropriate wireless communication architecture is extremely important as wireless communication faces security and reliability challenges. To combat severe communication impairment induced by invader, it is proposed to implement space-time block coding over virtual MIMO. With an increment of diversity in virtual MIMO, BER performance has been improved by 18dB. Furthermore, with more redundant copies of transmitted signals at receiver, reliability of system has increased by 4 times in 4x1 V-MIMO and by 8 times in 8x1 V-MIMO than traditional SISO case. Security challenges from malicious additive attack and data piracy have been examined. Simulations show …

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Intra Frame Luma Mode Prediction Using Neural Networks In Hevc, Dilip Prasanna Kumar Jan 2013

Intra Frame Luma Mode Prediction Using Neural Networks In Hevc, Dilip Prasanna Kumar

Electrical Engineering Theses - Archive

High Efficiency Video Coding, the latest video coding standard proposed by the JVT-VC and three profiles- HEVC main, main 10 and main intraframe were adopted in January 2013, provides significant amount of compression compared to older standards, while retaining similar visual quality. This is achieved at the cost of a computationally expensive encoding method.Intra frame coding contributes to a large portion of the computational complexity. In this research, a way to speed up the intra frame prediction mode decision using Artificial Neural Networks is proposed. The search for the correct prediction mode is simplified by using neural networks to analyze …

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Modeling And Characterization Of The Insulated Gate Bipolar Transistor In The Near-Threshold Region, Farah P. Vandrevala Jan 2013

Modeling And Characterization Of The Insulated Gate Bipolar Transistor In The Near-Threshold Region, Farah P. Vandrevala

Electrical Engineering Theses - Archive

The Insulated Gate Bipolar Transistor (IGBT) is a power semiconductor device widely used in high-speed switching applications. Due to aging and internal heating, the device is prone to a failure mechanism known as latch-up in which, changes in the threshold voltage and the on-state voltage of the device may ultimately lead to loss of switching control.Since IGBTs are typically operated at high voltages and currents, the datasheets do not provide information on the static characteristics of the device for voltages close to the threshold, which is a useful region for understanding the underlying device physics.In this thesis a simplified IGBT …

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Complexity Reduction In Hevc Intra Coding And Comparison With H.264/Avc, Vinoothna Gajula Jan 2013

Complexity Reduction In Hevc Intra Coding And Comparison With H.264/Avc, Vinoothna Gajula

Electrical Engineering Theses - Archive

ITU-T (VCEG) and ISO/IEC (MPEG) collaborated and formed the joint collaborative team on video coding (JCT-VC) in April 2010 to develop the next-generation video coding (NGVC) standard.. HEVC standard doubles the coding efficiency and the approximately 50% less bit rate with respect to H.264/AVC, at nearly the same video quality at expense of increased complexity. In this thesis, a technique is proposed to reduce the complexity of HEVC intra coding to get better encoding time, involving two steps - first by optimizing the PU (prediction unit) size decision process using texture complexity analysis by intensity gradients and second to obtain …

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Concurrent Validity And Test Retest Reliability Of Three Postural Control Assessments, William Shane Warren Jan 2013

Concurrent Validity And Test Retest Reliability Of Three Postural Control Assessments, William Shane Warren

Kinesiology Theses - Archive

Context: In the United States an estimated 1.6 to 3.8 million sports-related mild traumatic brain injuries occur annually (Broglio, 2008). The accurate and timely diagnosis of concussion using a comprehensive test battery that includes symptom inventories, postural control screening, a physical and neurological screen and a neurocognitive assessment have been recommended. Postural control assessments vary in type, and have a range of reported sensitivities. The Sensory Organization Test (SOT), the Balance Error Scoring System (BESS), and the Stability Evaluation Test (SET) are three measures of postural control. Objective: To determine the test-retest reliability and concurrent validity of three postural control …

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Chemostratigraphy Of The Upper Cretaceous From Central And South Texas With Focus On The Eagle Ford Group, Brett Huffman Jan 2013

Chemostratigraphy Of The Upper Cretaceous From Central And South Texas With Focus On The Eagle Ford Group, Brett Huffman

Earth & Environmental Sciences Theses - Archive

The fine-grained organic-rich rocks of the Eagle Ford (Cenomanian-Turonian) were deposited during the Upper Cretaceous in the shallow waters of the Western Interior Seaway. Five drill cores recovered from two counties, four from Travis County, Texas and one from Frio County, Texas, have been scanned from between two foot and half foot intervals with a hand-held energy-dispersive x-ray fluorescence (HH-ED-XRF) spectrometer to acquire major (e.g. Ca, Si, Al) and trace (e.g. Mo, V, Ni) element data for quantitative analysis. Additionally, gamma ray logs have been analyzed for two of the cores. Major element geochemistry indicates the Eagle Ford deposited in …

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Sleep Experiences Of Hospitalized Antepartum Patients, Andrea M. Erwin Jan 2013

Sleep Experiences Of Hospitalized Antepartum Patients, Andrea M. Erwin

Nursing Dissertations - Archive

For many women, pregnancy can be a time of sleep disturbance. Physiological, hormonal, and emotional changes associated with pregnancy often lead to sleep disturbance. Women who develop antepartum complications frequently are prescribed bed rest and hospitalization. Both pregnancy and hospitalization can influence sleep. This study examined the sleep experience of hospitalized antepartum women. The purposes of this descriptive correlational study were to determine whether being in the hospital affects sleep in pregnant women, gestational age influences sleep while hospitalized, and patient's usual sleep patterns influence sleep during hospitalization. A conceptual model of impaired sleep for the childbearing family provided theoretical …

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Factors Of Attrition In Cohort Doctoral Education: A Self Determination Theory Perspective, Linda Ann Garcia Jan 2013

Factors Of Attrition In Cohort Doctoral Education: A Self Determination Theory Perspective, Linda Ann Garcia

Educational Leadership & Policy Studies Dissertations - Archive

Attrition rates, completion rates, and time to degree are the key areas researchers have sought to examine influencing factors and patterns of behavior that describe the departure process of students in doctoral study. Through the lens of self-determination theory (Deci & Ryan, 1985), the purpose of this phenomenological qualitative study was to examine and describe the intrinsic motivation experiences of doctoral level education cohort program students, those who are still in process and those who have completed. Specifically, this study focuses on investigating the variables of autonomy, competence, and relatedness in nine doctoral-level education cohort program participants who are in …

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Politeness Devices In The Tuvan Language, Vitaly Voinov Jan 2013

Politeness Devices In The Tuvan Language, Vitaly Voinov

Linguistics & TESOL Dissertations - Archive

Whereas a few core areas of the Tuvan language (such as phonology and morphology) have been fairly well described by linguists, pragmasemantic topics in the language, including politeness, have until now not been probed deeply. Using insights from theories of linguistic politeness proposed by Brown & Levinson (1978, 1987) and by their numerous critics (e.g., Ide 1989; Nwoye 1992; Watts 2003; Lakoff & Ide 2005; LPRG 2011), in this dissertation I investigate the morphosyntactic, pragmatic and sociolinguistic aspects of some of the primary verbal means that Tuvans use in conversation to express politeness to each other. The language material is …

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Investigating The Effectiveness Of Problem-Based Learning In 3d Virtual Worlds. A Preliminary Report On The Hadrian’S Villa Project, Lee Taylor-Helms, Lynne. Kvapil, John Fillwalk, Bernard Frischer Jan 2013

Investigating The Effectiveness Of Problem-Based Learning In 3d Virtual Worlds. A Preliminary Report On The Hadrian’S Villa Project, Lee Taylor-Helms, Lynne. Kvapil, John Fillwalk, Bernard Frischer

Scholarship and Professional Work - LAS

This paper discusses a recent study to test the effectiveness of combining 3D virtual worlds (VWs) with Problem Based Learning (PBL) in archaeological education of undergraduate college students at two American universities. The testbed used was a virtual world of Hadrian’s Villa at Tivoli (Italy), a World Heritage Site dating to the reign of Hadrian (117-138 CE). At both universities courses were offered on the villa using a PBL approach in such a way that the relative strengths and weaknesses of learning based on face-to-face, 2D, and VW presentations could be assessed. The study helped to clarify ways in which …

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Practical End-To-End Performance Evaluation Of Backend Software Applications, Tuli Nivas Jan 2013

Practical End-To-End Performance Evaluation Of Backend Software Applications, Tuli Nivas

Computer Science and Engineering Dissertations - Archive

This dissertation makes contributions to four areas of performance testing - the test process itself, monitoring, automation and end-to-end performance evaluation of backend applications. The first contribution deals with the testing process. Performance testing is a key element of industrial software development, but we still encountered the following two problems. (1) While testing textbooks prescribe writing tests against performance goals, we find that it is impractical to gather from business analysts performance goals that are detailed enough for finding subtle performance bugs. (2) Once performance tests are conducted, we were asked questions such as - how do you make sure …

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New Matrix Completion Models For Social Information Retrieval Application, Jin Huang Jan 2013

New Matrix Completion Models For Social Information Retrieval Application, Jin Huang

Computer Science and Engineering Dissertations - Archive

Many popular social web sites have emerged during the past decade and completely changed many users' everyday live. Recently, social information retrieval models, where conventional information retrieval meets the social context of search and recommendation, have become the central topic in machine learning, data mining, information retrieval and many other areas.A particular application of social information retrieval is the recommendation. Such recommendation ranges from classic recommendation movie rating recommendation in user-item matrices, trust and reputation modeling between members in any social network. If we model such recommendation in the form of matrices, then such recommendation can be formulated as recovering …

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Quantitative Analysis Of Surface Enhanced Raman Spectra, Shuo Li Jan 2013

Quantitative Analysis Of Surface Enhanced Raman Spectra, Shuo Li

Computer Science and Engineering Dissertations - Archive

Quantitative analysis of Raman spectra using surface-enhanced Raman scattering (SERS) nanoparticles has shown the potential and promising trend of development in vivo molecular imaging. One of the key job is from the intensities of Raman signals to predict the quantities of analytes. Direct classical least squares (DCLS) and multivariate calibration (MC) are commonly used methods. DCLS relies on source Raman signals as the references. But the inherent Instability of Raman signals make the DCLS model not robust enough. MC model relies on a batch of training mixture Raman signals together with the ground truth mixing concentrations to build the multivariate …

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Bending The Cost Curve On College Textbooks, Joseph M. Moxley Jan 2013

Bending The Cost Curve On College Textbooks, Joseph M. Moxley

English Faculty Publications

No abstract provided.

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Mesenchymal Stem Cells As Targeted Cell Vehicles To Deliver Drug-Loaded Nanoparticles For Cancer Therapy, Kytai Truong Nguyen Jan 2013

Mesenchymal Stem Cells As Targeted Cell Vehicles To Deliver Drug-Loaded Nanoparticles For Cancer Therapy, Kytai Truong Nguyen

Bioengineering Faculty Publications - Archive

No abstract provided.

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