### Recent Submissions

• #### Texas Success Initiative developmental education: A program evaluation using mixed methods action research at a large university ﻿

(2014-05)
The purpose of this dissertation is to investigate the effectiveness of developmental education reforms in a university setting. Since 2010, the Texas Higher Education Coordinating Board and the Texas legislature have begun ...
• #### Proton-induced surface charging and dissolution of pyrolusite (β-MnO2) in NaCl media at 25°C ﻿

(2014-05)
Manganese oxides (Mn-oxides) are ubiquitous in soils and sediments and have been shown to be effective adsorbents of heavy metals from solution. The adsorption of heavy metals by Mn-oxides provides an important sink for ...
• #### Effect of chain length of hybrid lipids on line tension in phase-separated giant unilamellar vesicles ﻿

(2014-08)
Hybrid lipids (HL) are phospholipids with one saturated and one unsaturated chain and they are abundant in cell membranes. HLs are hypothesized to act as linactants and reducing line tension in cell membranes. Here we ...
• #### The aggregation of asphaltene molecules as a function of carbon dioxide concentration ﻿

(2014-08)
Asphaltenes can present problems in production and flow assurance during tertiary enhanced oil recovery projects involving CO2 injection. Despite many years of research, asphaltene behavior remains poorly understood, and ...
• #### Numerical development of a fully coupled non-planar hydraulic fracture simulator ﻿

(2014-08)
Propagation pattern of hydraulic fractures in the complicated reservoirs such as shale is not well understood yet. Analytical models are only useful for solving problems with simple geometry, and only the fracture propagation ...
• #### The effect of low back pain status and a volitional preemptive abdominal contraction on dynamic balance test performance in people iwth low back pain ﻿

(2015-05)
Balance disturbances are commonly observed with low back pain (LBP), and clinical tests are needed to detect balance deficits in this population. The Y-Balance Test (YBT) may detect balance deficits in people with LBP or ...
• #### Cervical nerve root displacement and strain during upper limb nueral tension testing ﻿

(2014-05)
Clinical examination of neural pathology involving cervical nerve roots is difficult due to the transient nature of pathologies such as cervical radiculopathy, entrapment neuropathies, and thoracic outlet syndrome. Significant ...
• #### Reading span test and text recognition: Comparison of quiet and two-talker noise ﻿

(2013-12)
[not available]
• #### Investigating the role of high frequency information in naturally produced male, female, and child vowels ﻿

(2013-12)
The traditional bandwidth presumed to be required for accurately identifying speech, vowels in particular, focuses primarily on frequencies below 3000-4000 Hz. Early research showed that normal-hearing listeners were unable ...
• #### An examination of the effectiveness of video modeling intervention using a speech generating device in preschool children with Austim ﻿

(2011-05)
Individuals with severe speech and language impairment as a result of autism may rely on non-speech communication aids to augment or replace speech. These aids include speech generating devices (SGDs) and graphic symbol ...
• #### The attitudes toward and perceived communicative competence of individuals with Aphasia using speech generating devices ﻿

(2015-08)
Purpose: The purpose of this dissertation was twofold. Study one established the reliability and validity of the Communicative Competence scale (CC scale). Study two investigated the effects of augmentative and alternative ...
• #### Projective Streaming and sand tray: Using conjoint analysis to compare two therapeutic processes ﻿

(2014-08)
A new therapeutic process called Projective Streaming is introduced in this dissertation. Early experience with this process indicates possible benefits for improvements in focus, emotion, memory and perception. It may ...
• #### Phylogeographic structure, diversity, and systematics in the genus Micronycteris (Chiroptera: Phyllostomidae) ﻿

(2014-08)
The New World tropics is a region of high biodiversity that encompasses various landscapes and biomes. The diversity of mammals in the Neotropics comprises almost 30% of all extant mammalian species, and of these, several ...
• #### THERMOPHYSICAL AND RHEOLOGICAL PROPERTIES OF POLYMER NANOCOMPOSITE AND IONIC LIQUIDS ﻿

(2015-05-12)
The viscoelastic bulk modulus K(t) is an important material property for high pressure polymer processing and design of structural components. However, in spite of its importance, experimental investigations of K(t) have ...
• #### Evolution of skunks (Carnivora: Mephitidae) across the Mexican Transition Zone: Understanding the influence of environmental variation on morphological and phylogeographic patterns ﻿

(2014-08)
For this dissertation I used quantitative assessments of morphological and genetic characters to examine how variation in these traits could be used to shed light on the evolutionary history of one the world’s most ubiquitous ...
• #### Westphalian soldiers and the myth of the war of liberation – Evolving notions of identity, francophobia, and soldier-masculinity in Napoleonic Germany ﻿

(2014-08)
Historians have longed depicted the year 1813 as the origin of German nationalism - a time during which the German people finally awoke from their regionally divided slumber and, motivated by a burgeoning, romantic sense ...
• #### Expression and characterization of a kinase from Chilo iridescent virus ﻿

(2014-08)
Despite an annual $40 billion investment, economic losses due to insects average$200 billion a year. Traditional use of chemical pesticides is detrimental to human health due to tainted food and contaminated ground water. ...
• #### To eat or not to eat? Behavioral responses to novelty and aposematic signals ﻿

(2014-08)
Foraging behavior is an integral part of an individual’s life. Without food, organisms will not have the energy needed to find shelter, reproduce, etc.; therefore, understanding the ways in which individuals find and respond ...
• #### Phase stability of XZn (X = Cu, Ag, and Au) B2 phase alloys ﻿

(2014-08)
While CuZn and AgZn have a disordered bcc structure at a high temperature and stoichiometric concentration, this is not the case for AuZn. Moreover, when the temperature is reduced, only CuZn alloys transform to B2 phase, ...
• #### Two essays on initial public offerings ﻿

(2014-08)
In essay I, I test whether there is a difference in the level of efficiency between IPO stocks and a matched sample of seasoned stocks. My findings show that IPO stocks are less efficient than seasoned stocks during my ...