UNT Theses and Dissertations - 402 Matching Results

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9-Lipoxygenase Oxylipin Pathway in Plant Response to Biotic Stress

Description: The activity of plant 9-lipoxygenases (LOXs) influences the outcome of Arabidopsis thaliana interaction with pathogen and insects. Evidence provided here indicates that in Arabidopsis, 9-LOXs facilitate infestation by Myzus persicae, commonly known as the green peach aphid (GPA), a sap-sucking insect, and infection by the fungal pathogen Fusarium graminearum. in comparison to the wild-type plant, lox5 mutants, which are deficient in a 9-lipoxygenase, GPA population was smaller and the insect sp… more
Date: May 2012
Creator: Nalam, Vamsi J.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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3D Reconstruction Using Lidar and Visual Images

Description: In this research, multi-perspective image registration using LiDAR and visual images was considered. 2D-3D image registration is a difficult task because it requires the extraction of different semantic features from each modality. This problem is solved in three parts. The first step involves detection and extraction of common features from each of the data sets. The second step consists of associating the common features between two different modalities. Traditional methods use lines or ortho… more
Date: December 2012
Creator: Duraisamy, Prakash
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Absorptive Capacity: An Empirical Examination of the Phenomenon and Relationships with Firm Capabilities

Description: The field of strategic management addresses challenges that firms encounter in an attempt to remain competitive. The ability to explain variation in firm success through examination of knowledge flows has become a prominent focus of research in the strategic management literature. Specifically, researchers have sought to further examine how firms convert knowledge, a phenomenon conceptualized as absorptive capacity. Absorptive capacity is the firm’s ability to acquire, assimilate, transform, … more
Date: May 2012
Creator: Daspit, Josh
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Acculturation and Depression in Older Mexican American Adults: the Role of Social Support

Description: Despite socioeconomic disadvantages, less acculturated Mexican Americans tend to exhibit better mental health than their more acculturated counterparts. However, in the case of older Mexican American adults, research has demonstrated the opposite to be true (Gonzalez, Haan, & Hinton, 2001). A variable of interest potentially responsible for this difference is social support. Thus, the current study proposed to investigate the mediation and moderation effects that social support has on the relat… more
Date: August 2012
Creator: Caballero, Daniela
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Adoptive Parenthood: an Exploratory Study of the Influence of Pre-adoption Communication Satisfaction on Post-adoption Family Adjustment and Coping

Description: There are over a million adopted children in the United States, which makes up over 2% of the population. in spite of the fact that the majority of children are adopted into loving and caring homes, early life trauma puts them at higher risk for developing behavioral and emotional problems than non-adopted children. Due to these issues, many adoptive parents encounter post-adoption stress. This stress is often linked to minimal education regarding short- and long-term challenges associated w… more
Date: May 2012
Creator: Seebeck, Lara N.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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The Affect of Mobile Performance Support Devices on Anxiety and Self-Efficacy of Hospital Float Staff

Description: Floating describes the act of staff moving from one unit to another based on the needs of the patients in a hospital. Many staff who float to different units express negative feelings, including anxiety and lack in self-efficacy. However, floating is both an economical and efficient method to use staff across the hospital, especially with current staffing shortages in the United States. This study investigated how the use of mobile performance support devices may help reduce anxiety and incre… more
Date: May 2012
Creator: McKee, Megan Riley
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Affective Forecasting: the Effects of Immune Neglect and Surrogation

Description: Studies of affective forecasting examine people’s ability to predict (forecast) their emotional (affective) responses to future events. Affective forecasts underlie nearly all decisions people make and the actions they take. However, people engage in systematic cognitive errors when making affective forecasts and most often overestimate the intensity and duration of their emotional responses. Understanding the mechanisms that lead to affective forecasting errors (e.g., immune neglect) and exami… more
Date: August 2012
Creator: Burkman, Summer Dae
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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After the Planes

Description: The dissertation consists of a critical preface and a novel. The preface analyzes what it terms “polyvocal” novels, or novels employing multiple points of view, as well as “layered storytelling,” or layers of textuality within novels, such as stories within stories. Specifically, the first part of the preface discusses polyvocality in twenty-first century American novels, while the second part explores layered storytelling in novels responding to World War II or the terrorist attacks of 9/11. T… more
Date: May 2012
Creator: Boswell, Timothy
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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“Almost Astronauts”: Short Stories

Description: In this collection of short stories, I abduct experiences from my own life and take them on an imaginative journey. I experiment with elements of structure and point of view, often incorporating the magical or surreal to amplify the narrator’s internal landscape. As demonstrated in the title story, “Almost Astronauts,” these stories all deal with a sudden and sometimes destructive shift in the narrator’s perspective.
Date: May 2012
Creator: Miller, Laura I.
Item Type: Refine your search to only Thesis or Dissertation
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Alterations in Fatty Acid Amide Hydrolase (Faah) Transcript Levels and Activity Lead to Changes in the Abiotic Stress Susceptibility of Arabidopsis Thaliana

Description: N-Acylethanolamines (NAEs) are a class of bioactive lipids, and FAAH is one of the enzymes responsible for degrading NAEs in both plants and animals. in plants, FAAH appears to be closely associated with ABA, a phytohormone which has long been associated with plant stress responses, since the overexpression of FAAH in Arabidopsis results in ABA hypersensitivity. Therefore, it is reasonable to speculate that alterations in FAAH transcript levels will result in altered stress responses in plant… more
Date: May 2012
Creator: Gonzalez, Gabriel
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Alternative Complementation in Partially Schematic Constructions: a Quantitative Corpus-based Examination of COME to V2 and GET to V2

Description: This paper examines two English polyverbal constructions, COME to V2 and GET to V2, as exemplified in Examples 1 and 2, respectively. (1) the senator came to know thousands of his constituents (2) Little Johnny got to eat ice cream after every little league game. Previous studies considered these types of constructions (though come and get as used here have not been sufficiently studied) as belonging to a special class of complement constructions, in which the infinitive is regarded as instanti… more
Date: May 2012
Creator: Lester, Nicholas A.
Item Type: Refine your search to only Thesis or Dissertation
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American Blitzkrieg: Courtney Hodges and the Advance Toward Aachen (August 1 - September 12, 1944)

Description: This is an analysis of combat operations of US First Army under the command of Courtney Hodges, between August 1 and September 12, 1944, with an emphasis upon 1st, 4th, 9th, and 30th Divisions. However, other formations are necessarily discussed in order to maintain context. Indeed, many historians have failed to emphasize the complex interdependent nature of these efforts, and the traditional narrative has been distorted by inadequate situational awareness. This study argues that the army's op… more
Date: December 2012
Creator: Rinkleff, Adam J.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Analysis of Roger-ducasse’s Pastorale Pour Orgue

Description: Pastorale pour Orgue (1909) is Jean Jules Aimable Roger-Ducasse’s only solo organ composition, which demonstrates skillful use of organ colors and demands a virtuoso technique for performance. Writing Pastorale in 1909, Roger-Ducasse synthesized compositional styles and techniques of two very different compositional approaches – impressionism and classicism. This study examines the stylistic characteristics of Pastorale by Roger-Ducasse as examples of both of these influences. the synthesis in … more
Date: May 2012
Creator: Kim, Jung-Won
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Analysis of Sources Affecting Ambient Particulate Matter in Brownsville, Texas

Description: Texas is the second largest state in U.S.A. based on geographical area, population and the economy. It is home to several large coastal urban areas with major industries and infrastructure supporting the fossil-fuel based energy sector. Most of the major cities on the state have been impacted by significant air pollution events over the past decade. Studies conducted in the southern coastal region of TX have identified long range transport as a major contributor of particulate matter (PM) pol… more
Date: May 2012
Creator: Diaz Poueriet, Pablo
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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An Analysis of the Correspondence Between the Measures Collected by an Autism Treatment Center and its Stated Mission Goals

Description: This study was a program evaluation for an autism treatment center for the period of April 2008 through August 2011. the study extended previous evaluations of the autism treatment center. the purpose of this evaluation was to determine the degree to which the center’s measures corresponded with its stated mission goals. a number of data sources were reviewed including client records of demographic and outcome information. Findings suggest the center maintained records that allow for the evalu… more
Date: May 2012
Creator: Kowalchuk, Holly M.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Analyzing Visitors’ Discourse, Attitudes, Perceptions, and Knowledge Acquisition in an Art Museum Tour After Using a 3D Virtual Environment

Description: The main purpose of this mixed methods research was to explore and analyze visitors’ overall experience while they attended a museum exhibition, and examine how this experience was affected by previously using a virtual 3dimensional representation of the museum itself. The research measured knowledge acquisition in a virtual museum, and compared this knowledge acquired between a virtual museum versus a real one, employing a series of questionnaires, unobtrusive observations, surveys, personal a… more
Date: May 2012
Creator: D’ Alba, Adriana
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Antigravity

Description: This dissertation contains two parts: Part I, which discusses the elegy of possessive intent, a subgenre of the contemporary American elegy; and Part II, Antigravity, a collection of poems. English elegies have been closely rooted to a specific grief, making the poems closer to occasional poems. The poet—or at least the poet’s speaker—seeks some kind of public consolation for (often) a private loss. The Americanized form does stray from the traditional elegy yet retains some of its charact… more
Date: August 2012
Creator: Bowen, Ashley Hamilton
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Partner: UNT Libraries
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Aphorismen, Capriccio, and Heptameron for Piano Solo By Jürg Baur: a Performer's Guide

Description: The purpose of this dissertation is to give instruction regarding the performance of three important piano works by Jürg Baur (1918-2010). Aphorismen, Capriccio, and Heptameron stand out as his most significant piano works both because of their length and because of their pianistic complexity. Since Baur had a successful career as both teacher and composer during his lifetime, his acclaimed works received many honors in Germany. His works can be performed by intermediate to advanced students. I… more
Date: December 2012
Creator: Park, Esther
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Are They Ready? a Multi-case Study of Traditional and Innovative Texas Teacher’s Perceptions of 21St Century Skills in Teaching and Learning

Description: The 21st century is now in the second decade and the need for 21st century skills is discussed at all levels of education as necessary for student success in the future. Federal, state, and districts are addressing this need and have written technology plans to address 21st century skills needed. the purpose of this dissertation is to contribute to the knowledge of 21st century educational technology. the data includes seven recorded interviews from two separate research projects covering two m… more
Date: May 2012
Creator: Royal, Joy
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Partner: UNT Libraries
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The Argei: Sex, War, and Crucifixion in Rome and the Ancient Near East

Description: The purpose of the Roman Argei ceremony, during which the Vestal Virgins harvested made and paraded rush puppets only to throw them into the Tiber, is widely debated. Modern historians supply three main reasons for the purpose of the Argei: an agrarian act, a scapegoat, and finally as an offering averting deceased spirits or Lares. I suggest that the ceremony also related to war and the spectacle of displaying war casualties. I compare the ancient Near East and Rome and connect the element of … more
Date: May 2012
Creator: Foust, Kristan Ewin
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Partner: UNT Libraries
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The Art Car Spectacle: a Cultural Display and Catalyst for Community

Description: This auto-ethnographic study focuses on Houston’s art car community and the grassroots movement’s 25 year relationship with the city through an art form that has created a sense of community. Art cars transform ordinary vehicles into personally conceived visions through spectacle, disrupting status quo messages of dominant culture regarding automobiles and norms of ownership and operation. An annual parade is an egalitarian space for display and performance, including art cars created by indivi… more
Date: August 2012
Creator: Stienecker, Dawn
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An Assessment of Fruit Offerings for 7Th and 8Th Grade Students in Texas

Description: Childhood obesity in America is reaching epidemic proportions. This study explored whether daily online lunch menu information was sufficient to enable parents to advise their children about healthy and unhealthy menu choices in 350 Texas middle schools and whether online menu information strongly correlated with the descriptions of the offerings given by 52 school cafeteria managers in telephone interviews. Although schools are making efforts to describe their offerings, they are not vigorousl… more
Date: August 2012
Creator: Paschal, Ryan Tyler
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Auditors’ Information Search and Documentation: Does Knowledge of the Client Preference Or PCAOB Accountability Pressure Matter?

Description: Auditors regularly make judgments regarding whether a client’s chosen accounting policy is appropriate and in accordance with generally accepted accounting Principles (GAAP). However, to form this judgment, auditors must either possess adequate topic-specific knowledge or must gain such knowledge through information search. This search is subject to numerous biases, including a bias toward confirmation of a client’s preference. It is important to further our understanding of bias in audito… more
Date: May 2012
Creator: Olvera, Renee M.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Automated Classification of Emotions Using Song Lyrics

Description: This thesis explores the classification of emotions in song lyrics, using automatic approaches applied to a novel corpus of 100 popular songs. I use crowd sourcing via Amazon Mechanical Turk to collect line-level emotions annotations for this collection of song lyrics.  I then build classifiers that rely on textual features to automatically identify the presence of one or more of the following six Ekman emotions: anger, disgust, fear, joy, sadness and surprise. I compare different classificatio… more
Date: December 2012
Creator: Schellenberg, Rajitha
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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