Digital Commons Network^™

Veteran Wellness And Reintegration: Factors Contributing To Their Success In The Community, Melissa A. Escamilla

Theses and Dissertations

The purpose of the following study is to determine if there is a relationship between veteran wellness based on gender, discharge status, theatre of operations, substance use disorder, veteran self-efficacy, community reintegration post discharge, stigma and veteran physical and psychosocial factors. Military veteran wellness has been the focal point of service providers for ensuring post-discharge veterans' success. During the last decade there has been an increase in military veterans reintegrating into society with chronic ailments and undiagnosed conditions. The study examined 85 Texas veterans: (a) the relationship between veterans' substance abuse and their perception of stigma, (b) the relationship between …

Effects Of Elevated Temperature On Gonadal Functions, Cellular Apoptosis, And Oxidative Stress In Atlantic Sea Urchin (Arbacia Punctulata), Jackson B. Johnstone

Theses and Dissertations

Increasing surface sea water temperatures effect on growth, reproduction and development in marine organisms. Sea urchins are excellent indicator species and ideal model organisms to focus on. In this study, I tested the effect of higher temperatures on reproductive functions, heat shock protein (HSP, a chaperone protein produced by cells in response to heat stress) and nitrotyrosine protein (NTP, an indicator of reactive nitrogen species, RNS) expressions, cellular apoptosis, and ceolomic fluid (CF, a body fluid which regulates important physiological processes) conditions in Atlantic sea urchin at three different temperatures. Ten sea urchins were placed in each of six aquariums …

Contributions Of Historical Ecology To Ecological Services Assessments In The Lower Rio Grande Valley Texas, Julianna Katherine Schaefer Kurpis

Theses and Dissertations

Historic and current anthropogenic land-use activities affect ecological functions and ecosystem services quality. The clearing of native Tamaulipan thorn forest and riparian forests for agricultural use and expansion followed by rapid urbanization and population growth resulted in profound ecological impacts to the Lower Rio Grande Valley (LRGV), Texas. The goals of this study are 1) document trends in land use change and vegetation health in the LRGV 2) evaluate and demonstrate the application of the Ecosystem Services Identification & Inventory Tool (ESII Tool) for collecting ecological data and measuring percent ecological performance and 3) use historical ecology indicators to compare …

Aac Device Use In School-Aged Special Education Students, Vanessa Medina

Theses and Dissertations

This investigation analyzes how often AAC users typically utilize their devices throughout their day in their school setting. A survey method was implemented where elementary school educators were asked to report on their special education students use of their device during their school day. To identify special education educators' perceptions regarding the use of AAC devices in the public-school system, special education educators in the public-school system were contacted via email to conduct a survey in regard to current practice in their school setting regarding AAC use.

A letter of consent was obtained from the University of Texas Rio Grande …

Early Educator Awareness Of Autism Spectrum Disorder In Preschool Hispanic Populations, Karla Cecilia Vidaurri

Theses and Dissertations

Christensen et al. (2016) highlights how "there are disparities by race/ethnicity in estimated ASD prevalence, particularly for Hispanic children, as well as disparities in the age of earliest comprehensive evaluation and presence of a previous ASD diagnosis or classification, suggesting that access to treatment and services might be lacking or delayed for some children" With an increase in autism prevalence and Hispanic population, there's a crucial demand for effective servicing and referrals for early identification of Autism.

The aim of this study was to analyze how prepared early educators are in identifying children that fall under the category of autism …

Effects Of Global Warming On Gonadal Functions, Cellular Apoptosis, And Oxidative Stress In The American Oyster, Sarah B. Nash

Theses and Dissertations

Global warming due to climate change is predicted to intensify the heat stress in marine and coastal organisms, affecting their development, growth and reproductive functions. In this study. I analyzed gonadal development, heat shock protein 70 (HSP70), nitrotyrosine protein (NTP), dinitrophenyl (DNP) expressions, cellular apoptosis, and coelomic fluid (CF) conditions in American oyster. Oysters were placed in six aquariums and exposed to control (24°C), medium (28°C), and high (32°C) temperatures for one week. Higher temperature significantly decreased the number of eggs and sperm. CF protein concentrations also declined compared to control. In contrast, CF pH and HSP70 expression in gonad …

A Snapshot Of The Age, Growth, And Reproductive Status Of Gray Triggerfish (Balistes Capriscus, Gmelin 1789) On Three Artificial Reefs In The Northwest Gulf Of Mexico, Adam M. Lee

Theses and Dissertations

Age, growth, and reproductive status of gray triggerfish (Balistes capriscus) were identified from 2015-2016 on artificial reefs in the northwest Gulf of Mexico. Individuals ranged from 232-432 mm fork length with and a mean fork length of 319 mm. Individuals from age 0.2 to 5.2 yrs were observed with a weight to length relationship of Wg = 1.1 x -104 x FL2.7 (r2 = 0.94, n = 112), where FL = fork length (mm) and Wg = weight (g). A von Bertalanffy growth equation of Lt = 326(1 - e - 0.9 (t + 1.71)) was calculated irrespective …

Comparison Of Knowledge And Diagnostic Practices Relating To Autism Spectrum Disorder Between The United States And Mexico, Maria F. Valdez

Theses and Dissertations

The present study examined and compared the knowledge, screening, and diagnostic practices of health care practitioners from Mexico and the United States of America (U.S.) as they relate to autism spectrum disorder (ASD). The participants included 56 healthcare professionals from U.S. and 16 healthcare professionals from Mexico. Data was collected via an online survey. Overall, participants achieved a mean knowledge accuracy of 0.58 (SD = 0.13). The mean accuracy of knowledge in Mexico was 0.52 (SD = 0.13) and the mean accuracy of knowledge in the U.S. was 0.60 (SD = 0.13). Location, years of experience, patient contact, and comfort …

Measuring Connective Capacity Throughout The Gulf Of Mexico Fishery Management Network, Anthony Rocha Lima

Theses and Dissertations

The Gulf of Mexico provides substantial resources along its 1,680-mile coastline, spanning 5 U.S. states and providing millions of pounds of seafood and hundreds of millions in revenue annually. Continued success of the fishery relies on the ability of a large, complex, multiagency network to find the best solutions to balance the needs of humans, as well as ensure long-term sustainability. Organizations with varying objectives require effective communication when addressing intricate ecosystem-based management topics such as endangered species and regional economies.

To better understand the connectivity within the Gulf fishery management network, an IRB reviewed survey was dispersed to the …

Does Machismo Culture Influence Latina/O Attitudes On Mental Health?, Amanda R. Mercado

Theses and Dissertations

This study represents an attempt to contribute to the identified gap in knowledge towards the effects of machismo on both Latina women and Latino men and how it effects their attitudes towards mental health. The idea that previous research on machismo has been so one-sided, but has revealed that psychological distresses were present and ignored, leaves room for my research to explore how Latina women are affected because they are just as susceptible to psychological distresses as men. By using a research based framework to explain the effects of machismo on both Latina women and Latino men, my study will …

Co-Infection Of Zika And Dengue Virus In Aedes Aegypti And Aedes Albopictus Mosquitoes, Felicia Vazquez

Theses and Dissertations

The term co-infection describes an event when multiple pathogens infect a single host. For vector-borne diseases, a vector may become co-infected by feeding either on a single host that has multiple pathogens or feeding multiple hosts, each of which may be infected. Co-infection in non-vector hosts has been shown to influence immune response and eventual outcome of disease, and is likely to have a similar impact on vector species. With multiple vector-borne diseases circulating in South Texas, the potential for co-infection exists. We examined when mosquitoes are infected with one virus and subsequently infected with another. We hypothesized that the …

Vocational Rehabilitation Counselors' Experiences, Perceptions, And Readiness Related To Self-Employment Of People With Disabilities, Deborah Ashley

Theses and Dissertations

The purpose of this dissertation study was to explore the experiences, perceptions, and readiness (EPR) of vocational rehabilitation counselors (VRCs) supporting people with disabilities (PWD) in self-employment. While PWD are twice as likely to be self-employed than the general population, self-employment case closure rates within vocational rehabilitation remain historically low around 2%.

Descriptive, inferential, and correlational statistical analysis were used to investigate the EPR of 205 Certified Rehabilitation Counselors across the nation via an online survey, the Vocational Rehabilitation Counselor Self-Employment Process Survey (VRC-SEPS). The VRC-SEPS consists of demographic items, two Likert-type scales examining experiences and readiness, and a set …

Longitudinal And Temporal Comparison Of Beach Sand On The Rio Grande Delta System, Samantha B. Moore

Theses and Dissertations

The Rio Grande is the 5th longest river in North America and defines a significant extent of the United States-Mexico border. It extends for 2830 km from its headwaters in the Rocky Mountains of Colorado to the Gulf of Mexico. The Rio Grande is fed by streams from the Sangre de Cristo Mountains, the Rio Conchos, the Pecos River, runoff from the Sacramento Mountains area, Devils River, the Rio Salado, and the Rio San Juan. This study addresses how the composition of sand forming the Rio Grande river delta into the Gulf of Mexico at Boca Chica Beach is changed …

Impacts Of Habitat Attributes And Community Gardens On Urban Bird Communities, Samuel Glenn Ortiz

Theses and Dissertations

The Rio Grande Valley of Southern Texas is a major agricultural region yet has some of the highest hunger rates in the USA. Urbanization and agriculture affect biodiversity, which is well studied, but little is known about how agriculture affects biodiversity in urban areas. We investigated how different urban attributes, including those related to urban farming, impact bird communities in Brownsville and Harlingen, TX, and compared sites that have community gardens to those that do not. To study three key urban habitat characteristics, we identified sites that exhibited all possible combinations of these factors, quantified land cover classes related to …

A Systematic Approach To High Blood Pressure Risk Analysis And Healthcare Cost Reduction In Young Adults [Metodología Sistemática Para El Análisis De Riesgo Y Reducción De Costos De Servicios Médicos De Hipertensión En Adultos Jóvenes], Francisco Rafael Torres Diaz

Theses and Dissertations

The purpose of this research is to utilize publicly available data to estimate the current rate of occurrence of undiagnosed High Blood Pressure (HBP) in young adults (18 to 24 years old) and the out-of-pocket healthcare expenses associated with complications of HBP, to provide feasible alternatives to mitigate the effects on a region's economy. This has been done by building a Risk Factor Simulation Model that utilizes known HBP risk factors’ correlation to HBP, insurance coverage data, and rate of diagnosis to formulate the average Risk Factor Value for a region, which through an Annual Expected Cost Function estimates the …

The Relationship Between The Distance Of An External Focus Of Attention And Lower Body Power In Rugby Athletes, Donald Pump

Theses and Dissertations

The purpose of this investigation is to examine the relationship between the distance effect on power output during countermovement jumps in Rugby athletes. Hypothesis Testing was conducted utilizing a Repeated Measures Analysis of Variance (RM ANOVA) at a .05 significance level. A Pairwise comparison was conducted to determine if one variable had a greater amount of quantitative property. Statistical insignificance was determined after all data was analyzed Results were unable to show a positive relationship between the distance of an external focus of attention and lower body power output in rugby athletes.

Factors Contributing To Successful Employment Outcomes For Individuals Who Are Hard-Of-Hearing, Sergio Cuevas

Theses and Dissertations

This study examined the relationship between demographic variables (gender, race and ethnicity, age, level of education, and secondary disability), state-federal vocational rehabilitation (VR) services, and VR employment outcomes among individuals who are hard-of-hearing. This study also explored what VR services contribute to employment outcomes for individuals who are hard-of-hearing. Data from The U.S. Department of Education Rehabilitation Service Administration Case Service Report (RSA-911) FY 2014 was used to focus on individuals who are hard-of-hearing. Logistic regression, Chi-square, and Chi-square Automatic Interaction Detector (CHAID) analyses were used to analyze the RSA-911 dataset.

Certified Rehabilitation Counselors' Self-Perceived Competency In Facilitating End-Of-Life Care Services, Miranda Lopez

Theses and Dissertations

As of 2010, certified rehabilitation counselors (CRC) have been provided ethical guidelines addressing end-of-life care (EOL) service delivery for persons with disabilities. Due to the plethora of pertinent knowledge and skills sets needed to facilitate comprehensive EOL issues, it is vital to examine rehabilitation counselors’ self-perceived competence in facilitating EOL care service delivery. The study was conducted as a non-experimental exploratory design. Based on the study’s sample (N = 188), descriptive statistics reported 70% of counselors lacked education while 69% had not participated in EOL training. Approximately 81% of the participants reported the need for EOL education and training. …

A Study Of Counselor Trainees' Self-Perceived Competency In Social Justice Advocacy, Mary Ann Rocha

Theses and Dissertations

The purpose of the study is to examine the social justice advocacy competencies of rehabilitation counselor trainees. The study aims to explore rehabilitation counselor trainees’ self-perceived social justice advocacy competencies. More specifically, counselor trainees’ demographic and training variables will be examined to understand the process of social justice advocacy competency. Also, the study will explore the correlation between social justice advocacy competency and ethical awareness. A convenience sample of counselor trainees who are in a master’s-level or doctoral level rehabilitation counseling program or related counseling program was utilized for this study. In total, 132 counselors in training completed the online …

Characterizing Polychlorinated Biphenyl Degradation Potential In Surface Water Bacteria From Rio Grande Valley, Texas Reservoirs, Alisha M. Janiga

Theses and Dissertations

The Donna Reservoir in Donna, Texas is contaminated with polychlorinated biphenyl (PCB) pollution. This reviews the current understanding of PCBs and investigate the potential of PCB degradation by native bacteria communities in the Donna Reservoir. The metabolic diversity, biphenyl tolerance, bphA1 presence were tested on surface water samples from the Donna Reservoir. The Ecoplate data suggest that the communities have a diverse metabolic capacity and the degree of plant life may interact with carbon type metabolism but not the rate of growth. Biphenyl growth curves showed that all the samples from the Donna Reservoir are tolerant to the average PCB …

Improving The Active Straight Leg Raise By Active And Passive Partner Assisted Stretching, Cortney R. Payne

Theses and Dissertations

The Functional Movement Screen has been a very popular tool for assessing athlete’s movements and predicting future risk of injury. In the hierarchy of this screen, the active straight leg raise reigns supreme. They have shown that improvements in this movement correlate to improvements in other movements but not vise versa. It is important to find a way to quickly improve this functional movement, so it can be utilized in group settings to help potentially reduce the risk of injury in athletes. The findings of this study will serve to be valuable in sports injury and improvement in performance. The …

Survey Assessment Of Community Knowledge And Prevention Of Chagas Disease And Its Vector In Hidalgo And Cameron Counties, Adam Dennis Wiejaczka

Theses and Dissertations

Chagas disease, caused by the parasite Trypanosoma cruzi, kills thousands of people annually and is the dominant cause of infectious myocarditis worldwide. Kissing bugs are vectors that carry T. cruzi . and are found in the Lower Rio Grande Valley (LRGV). There is no vaccination nor cure for Chagas. The best mechanism of prevention is to control vector infestations. Little research is available regarding the level of understanding local communities have about Chagas.

Our goal was to test the knowledge of several communities in the LRGV on Chagas disease. Our hypothesis states that local communities do not have sufficient …

An Exploratory Factor Analysis: Factors That Influence Employers Disposition To Hire And Retain Persons With Disabilities, Javier Nazario Rodriguez

Theses and Dissertations

Despite the laws that are in place to ensure equal employment opportunities for persons with disabilities, there continues to be a disparity in employment rates for persons with disabilities when compared to persons without disabilities. Understanding factors that influence employers disposition to hire and retain persons with disabilities is the first step towards developing a guide for professionals that provide direct job placement services to this population in developing an educational intervention plan that is conducive to employers being more receptive to hiring persons with disabilities.

Currently there are many studies that focus on employers’ attitudes towards hiring and retaining …

Perceptions Of Applied Behavioral Analysis In Speech-Therapy With Individuals With Autism, Irene Cortez

Theses and Dissertations

Speech language pathologists in the pediatric setting will typically find themselves working with children with autism and implementing behavior management strategies in order to implement the most effective therapy. Many of these behavior management strategies fall under the category of applied behavioral analysis, however applied behavioral analysis is not widely implemented as a whole in speech therapy. This thesis reviews current literature regarding autism, behavior management, and Applied Behavioral Analysis in speech therapy; and how speech language pathologists currently perceive applied behavioral analysis and its usefulness in speech therapy. General findings of this thesis revealed that the majority of speech …

Cultural Awareness: Latinos Perceptions In A Multicultural Counseling Course [Concientización Cultural: Percepciones De Estudiantes Latinos En Un Curso De Consejería Multicultural], Leila Flores-Torres

Theses and Dissertations

This study explored the experiences and perceptions from a multicultural counseling course of Latino graduate counseling students at a Hispanic Serving Institution (HSI). The purpose of the study was to understand the students’ lived experience and its impact in developing their multicultural counselor identity and competencies. The research questions included the following: What course experiences and personal values do Latino graduate students identify as relevant to their multicultural counseling preparation? What psychological process do Latino graduate students use to make meaning of their experiences and values in their multicultural counseling preparation to serve the needs of culturally diverse clients?

The …

Knowledge And Attitudes Toward Persons With Schizophrenia Among Hispanic University Students Enrolled In Mental Health And Non-Mental Health Disciplines, Manisha Sharma

Theses and Dissertations

The present study was designed to examine university students’ knowledge regarding schizophrenia and factors that can influence university students’ attitudes toward persons with schizophrenia. An attribution questionnaire ([AQ-27], Corrigan, Markowitz, Watson, Rowan, & Kubiak, 2003), the Error Choice Test ([ECT], Michaels & Corrigan, 2013), and the Social Desirability Scale ([SDS-13], Reynolds, 1982) were utilized to collect data from undergraduate students attending The University of Texas Rio Grande Valley (UTRGV), the largest U.S. Hispanic serving university located on the Texas-Mexico border. Descriptive and inferential statistics were utilized to analyze the survey data. Results indicated a non-significant relationship between students’ knowledge regarding …

The Effects Of Dance Therapy On Voice In Patients With Parkinson's Disease In A Multicultural Population, Ivon N. Ramirez

Theses and Dissertations

Current literature suggests that dance therapy in individuals with Parkinson’s disease shows noticeable improvement in motor functions, for example gait and balance improvement. Additionally, patients with Parkinson’s disease who participate in dance therapy may perceive positive benefits on their quality of life. Therefore, it is believed that increases in core support and improvements in posture, as a result of dance therapy, will have effects on the voice in patients with PD.

This thesis pulls from literature supporting treatment approaches in the field of speech-language pathology for voice patients with Parkinson’s disease. The aim of this study was to evaluate the …

Removal Of Chromium(Vi) And Chromium(Iii) Ions From Aqueous Solution Using Bio-Char Generated From Agricultural Waste Products, Diego Fernando Gonzalez

Theses and Dissertations

Heavy metals are one of the most persistent and prevalent contaminants in the aquatic environment. The removal of chromium from aqueous solution, especially in the hexavalent form is difficult. New technologies, techniques and/or new materials have been designed in order to effectively and efficiently remove chromium from the aqueous environment. The project focuses on the comparison of the effects of pH, time, temperature, binding capacity on bio-char’ generated from agricultural waste produces vs an amino modified derivative of the bio-char. Pineapple skins were dried, ground, sieved, and pyrolyzed to produce a bio-char material. The bio-char was analyzed using FTIR to …

Increasing Awareness Of Autism Spectrum Disorders In Law Enforcement In Hispanic Communities, Annette M. Cano

Theses and Dissertations

The aim of the present study was to study autism awareness amongst law enforcement officers (LEO) and first responders (FR) serving the Rio Grande Valley (RGV). A 17-question survey was conducted to collect demographic data, knowledge, and level of training that officers and responders have when serving individuals with Autism Spectrum Disorder (ASD).

Speech-Language Pathologist's Perspectives On The Efficacy Of Bilingual Education Programs In South Texas Public Schools For English As A Second Language Learners, Alexandra Rosas

Theses and Dissertations

Current research in regard to the assessment and treatment of ESLs is limited. Other problems found within the school setting, is that fact that SLPs have very limited resources and large caseloads. Hence, the fact that previous studies have found that SLPS working the school setting do not feel competent in serving ESL students.

The aim of this study is to investigate the efficacy of bilingual programs and explore the factors that impact English as a second language learners (ESLs), in public schools across the Rio Grande Valley. School based speech-language pathologists were surveyed for information concerning their perceptions and …