Digital Commons Network^™

Coming Of Age On Social Media: Platforms For Discussion And Critique On The Novels Of Sarah Dessen, Liza M. Soria

Theses and Dissertations

This thesis analyzes the way Tumblr and Twitter users converse about a variety of topics in Sarah Dessen’s novels, not predominantly focused on romance. From 2006 to 2016, tweets and blog posts across Tumblr and Twitter platforms have responded to the twelve novels written by Dessen from 1996 to 2015. Incorporating recent social media commentary on a variety of topics within her first six novels from That Summer (1996) to The Truth About Forever (2004) demonstrates how Dessen’s early novels appeals to readers currently on Twitter and Tumblr. In the last decade of Dessen’s writing career, from Just Listen (2006) …

La Incorporación De Los Elementos Del Latín Y Griego En La Enseñanza Del Español En Las Ciencias Médicas: Un Plan Metodológico Experimental [The Incorporation Of Latin And Greek Elements In The Teaching Of Spanish In Medical Sciences: An Experimental Methodological Plan], Jesus Ramos

Theses and Dissertations

The use of greco-latin etymologies in teaching Spanish medical terminology. An experimental methodological approach bases on grammar, history of medicine, physiological concepts. The exploration of the diverse prefixes and suffixes forming medical scientific terminology in medical specialties, the use of words and its context in medicine and related sciences.

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El uso de etimologías grecolatinas en la enseñanza de la terminología médica española. Un enfoque metodológico experimental basado en la gramática, la historia de la medicina, conceptos fisiológicos. La exploración de los diversos prefijos y sufijos que forman la terminología científica médica en las especialidades médicas, el uso de las …

(Re)Constructing American Linguistic Identity: Disrupting The American Linguistic Standard In First Year Composition, Brittany N. Ramirez

Theses and Dissertations

The thesis is a theoretical and analytical perspective on the construction of American Linguistic Identity through a Nationalist lens. By re-theorizing the concept of the nation as a “text”, and nationalism as the “composition” of that nation, this work challenges the dominant historical American linguistic narrative. This narrative is informed by an American Linguistic memory that is based on an Anglo-Saxon linguistic hegemony throughout American history. American linguistic memory has perpetuated a tacit English-Only policy in higher education, primarily through first year college composition courses. The tacit English-Only policy has influenced educators’ perceptions of students in the composition classroom as …

Añoranza, Victor H. Tijerina

Theses and Dissertations

El objetivo del presente trabajo constituye esta compilación de cuarenta y ocho poemas, la cual lleva por nombre Añoranza, tiene como uno de los principales objetivos invitar al lector a introducirse a la lectura y hacerlo partícipe de ella, y con ello acercar al individuo con los diferentes sujetos, y los cuadros de imágenes que aparecen a lo largo de la colección. Se indicaran algunas influencias de algunos poetas vanguardistas que repercutieron ciertamente en el desarrollo de los poemas. Para contrastar, se presenta la filosofía platónica sobre lo que el filósofo griego considera buena y mala poesía. Del Quijotes resaltan …

Impact Of Virtualization On Cloud Network Security, Koushicaa Sundar

Theses and Dissertations

In this thesis, experimental evaluation of the effect of virtualization on the availability of servers has been performed under Distributed Denial of Service (DDoS) attacks for popular server Operating Systems such as Windows Server 2008 R2, Windows Server 2012 R2 virtualized using Hyper-V. A comparative evaluation of the performance of the servers before and after virtualization under DDoS attacks indicates that after virtualization there is a considerable increase in the vulnerability to attacks and a decline in the performance of the virtualized server compared to when the server is not virtualized.

Analysis And Simulation Of A Social Network, Twitter: A Case Study, Jonatan Reyes

Theses and Dissertations

The use of online social networks empowers its users to efficiently disseminate information across traditional social networks. Typically, the weight and value of messages are relative to its readers’ culture and interests. Nevertheless, in some instances, messages take the form of viral phenomenon, which circulates around the world in very short periods of time. Therefore, despite the actual content of the message spread over the network, the determination of the effectiveness of message dissemination across the social network becomes an attractive opportunity for scientific study. Since a meticulous analysis of a complete online social network would require the acquisition of …

Hydrodesulfurization Of Dibenzothiophene Using Comos2, Jacob S. Sollner

Theses and Dissertations

The hydrodesulphurization (HDS) of crude oils is an important industrial process to remove sulfur from fuels. In this study, DBT was used as a model compound to study the removal of sulfur from a decahydronaphthalene solution. The catalyst was synthesized through low pressure pathways in the absence of H2S. All the synthesized catalyst were investigated using a combination of SEM, RAMAN spectroscopy, and XRD. The materials were studied for their ability to remove DBT from solution and the reaction products were analyzed. It was observed that the major reaction pathway was the direct desulphurization pathway and zero order reaction kinetics …

Molecular Dynamic Simulation Studies Of The Androgen Receptor Complexed With 5Α-Dihydrotestosterone And An Allosteric Ligand, Everardo Villarreal Ii

Theses and Dissertations

Receptors are important drug targets for the pharmaceutical industry, since they are involved in many illnesses. Nuclear receptors are a subset of receptors that control a variety of physiological events, by expression of genes from DNA. One of the nuclear receptors, the androgen receptor, is a steroid binding receptor that controls a variety of regulatory and development functions in the body. It is also the cause of some types of cancer, so the inhibition of this receptor is crucial. One of the processes studied to inhibit the function of the receptor is to see if an allosteric ligand, TRIAC, can …

Profitability And Financial Characteristics Of U.S. Publicly Traded Health Services Companies, Alessandra Rios

Theses and Dissertations

The health industry is affected by economic factors like income and prices. From 2007 to 2013, two turning points affected the healthcare industry, the financial crisis and the Affordable Care Act. This study is an attempt to measure the effects these turning points had on profitability of health services firms. To examine the potential changes the two events had on profitability, quarterly financial data was used to create a basic model that measures the Return on Assets, Return on Equity, Total Margin and Operating Margin of the firms. OLS regressions were run and results indicate that both ROA and ROE …

Understanding Long-Term English Language Learners In The Developmental Classroom Of A Community College, Stanley S. Snelson

Theses and Dissertations

This qualitative, phenomenological study is focused on 13 identified LTELLs currently enrolled in a community college classroom near the Texas-Mexico border. Both male and female students were identified and invited for participation based on an initial questionnaire Through an emic, qualitative lens, this research explores the beliefs that LTELLs hold with regard to language, educational supports, and gender in college. Second, the research looks to understand how these beliefs may impact the education of LTELLs currently enrolled in developmental classes of a community college. The driving overarching questions were: (1.) How do LTELLs perceive their own use of language? (2.) …

Handcrafted Electrocorticography Electrodes For A Rodent Neural Activity, Nishat Tasnim

Theses and Dissertations

Electrocorticography (ECoG) is a minimally invasive neural recording method that has been extensively used for neuroscience applications. Although many neural recording methods exist, ECoG provides a combination of stability, high spatial and temporal resolution with chronic and mobile capabilities. This paper presents an animal study using a low cost and simple handcrafted ECoG electrode that is made of commercially accessible materials. The study is performed on a Lewis rat implanted with a handcrafted 32-channel non-penetrative ECoG electrode covering an area of 3 x 3 mm 2 on the cortical surface. The ECoG electrodes were placed on the motor and somatosensory …

Thermal Conductivity Measurements Of Nanomaterials, Javier Acosta Martinez

Theses and Dissertations

Thermal conductivity “k” can be defined as a material property where heat is diffused due to a temperature gradient within the material. Among the applications for thermal conductivity are: thermoelectrics, thermal interface materials, thin films, insulation, among many others. A study was made to compare the different types of studies of thermal conductivity of nanomaterials, as well as, a comparison among the different types of setups used to measure thermal conductivity. For this study a custom made thermal conductivity tester was built, this tester was validated by measuring materials with both low and high thermal conductivity, and comparing the results …

The Acute Effects Of Aerobic Exercise With Blood Flow Restriction Cuffs On Arterial Compliance In Males And Females, Maria M. Gonzalez

Theses and Dissertations

RESULTS: Significant condition*gender interactions found in in SBP (p<.05), PR (p<.01), SVR (p<.01), SpO2 (p<.05), PWV carotid to femoral (p<.03), and PWV femoral to distal (p<.02). Significant condition*time interactions were found in SBP (p<.01), DBP (p<.01), MAP (p<.01), SV (p<.01), CO (p<.01), SVR (p<.01), TVI (p<.01), HR (p<.01), and SAE (p<.01). Significant condition main effects were found in SBP (p<.02), DBP (p<.03), PR (p<.03), SV (p<.01), CO (p=.01), SVR (p<.01), TVI (p<.01), HR (p<.01), and SAE (p<.03) as well as a condition trend in PWV femoral to distal (p=.06). Significant time main effects were found in SBP (p<.01), MAP (p<.04), PP (p<.01), PR (p<.01), CO (p<.01), SVR (p<.01), TVI (p<.01), HR (p<.01), SpO2 (p<.01), LAE (p<.03), and PWV femoral to distal (p<.01).

CONCLUSION: The 60 min session at a moderate aerobic intensity might have the potential to improve arterial elasticity more than a 20 min BFR session.

Elementary Educators' Perspective Of Physical Education And The Physical Education Teacher, Jennifer M. Garcia

Theses and Dissertations

Physical education continues to have the reputation it has had for years of being a subject of marginalization and of least importance in the school curriculum. The purpose of this study is to gain a better understanding of the perceptions of educators of physical education and the physical education teacher in the Rio Grande Valley. The researcher attempts to find, understand, and describe the perceptions of the educator’s view of this subject matter. Statistical significance was set at the .05 level for both tests of analyses. The researcher offers the null hypothesis of no difference between educator’s perception of PE …

The Relationship Between Entity Beliefs And Socioeconomic Status-Based Rejection Sensitivity: Academic Achievement In A Predominantly Hispanic Sample, Anna Kushner

Theses and Dissertations

Previous research has shown that entity beliefs can moderate or buffer the impact of class-based rejection sensitivity on expected and official grade point averages of low-income college students. This study attempted to replicate previous research, which found that class-based rejection sensitivity (RS-class) and entity beliefs had negative main effects on academic outcomes (grade point average), and that entity beliefs served as a moderator in the relationship between RS-class and academic outcomes. While the predicted relationships were not replicated, this study found that higher acculturation scores are related to greater levels of academic achievement as measured by GPA. This attempted replication …

Mapping Borderlands Horror: Tales In Terror, Trauma, And Latinx Immigrant Experiences In Recent Fiction, Cynthia Saldivar

Theses and Dissertations

This thesis explores how Chicana/o cultural producers redeploy conventions of horror in order to explore the lived experiences of Latinx, particularly in South Texas. To do so, I will examine texts such as Sandra Cisneros's classic 1992 short story "Woman Hollering Creek," Terri de la Peña’s 1996 short story “Refugio” and Christopher Carmona's award-winning 2015 short story "Strange Leaves" and Josefina Lopez’s 2011 play “Detained in the Desert” through the lens of domestic horror. This thesis will demonstrate how the horrific is "differential," that is, how what we consider horrific is thoroughly racialized, gendered, classed, and sexualized. The thesis will …

Essays On The Role Of Institutional Ownership In Bank Governance, Mohammad Jafarinejad

Theses and Dissertations

This dissertation consists of three chapters, focusing on U.S. bank holding companies from 2007 to 2013 to explore the role of institutional ownership in bank governance. In addition to the impact of ownership proportion, I explore the impact of ownership dispersion among institutional investors on bank safety, profitability and performance.

In Chapter I, I show that the proportion of institutional ownership in banks has increased significantly after the recent financial crisis. Moreover, I examine the impact of institutional ownership proportion and dispersion on bank safety using capital ratios (i.e., Tier 1 and Tier 2 capital ratios) and credit risk (i.e. …

Un Testimonio Del Abismo: The Figuring And Disfiguring Effects Of Trauma, Addiction, And Autobiography, Erin D. Knobloch

Theses and Dissertations

This thesis explores the paradox present in trauma, addiction, and autobiography, which are all capable of figuring and disfiguring the self. The object of the study is the written testimonio of Liliana López Cabrera, a Cuban former sex worker, survivor of sexual abuse, and recovering drug-addict, who lives on the U.S.-Mexican border.

Using Paul de Man’s idea of defacement and Jacques Derrida’s concept of pharmakon, which shows how something can embody two opposite essences simultaneously, a critical deconstruction is offered, by acknowledging rather than dismissing the incongruous nature of her work. López Cabrera’s testimonio del abismo, spoken through …

Graphene-Based Nanomaterials For Hydrogen Generation And Storage, Lin Wei

Theses and Dissertations

Hydrogen energy is promising candidate to replace fossil fuel. However, the usage of hydrogen energy was greatly limited due to its generation and storage. In this thesis report, the author synthesized novel metal/carbon nanomaterials used for the hydrogen storage and hydrogen evolution reaction. These materials were characterization by XRD, Raman, XPS, SEM, EDX, etc. And the surface area and the hydrogen storage properties were tested by ASAP 2020, using the BET measurement and hydrogen isotherm curves to discuss the gas adsorption properties. As for hydrogen evolution reaction, the materials were made into electrodes and tested with LSV, CV to shows …

You Either Laugh Or Cry, Laura Espinoza

Theses and Dissertations

You Either Laugh or Cry is a collection of bilingual flash non-fiction stories. Through the use of language the writer has employed code switching and humor to retell memories of her of childhood through young adulthood. Although the collection includes various members of the writer’s family, the short-shorts mainly focus on the mother-daughter relationship.

Global Entropy Based Greedy Algorithm For Discretization, Sai Jyothsna Jonnalagadda

Theses and Dissertations

Discretization algorithm is a crucial step to not only achieve summarization of continuous attributes but also better performance in classification that requires discrete values as input. In this thesis, I propose a supervised discretization method, Global Entropy Based Greedy algorithm, which is based on the Information Entropy Minimization. Experimental results show that the proposed method outperforms state of the art methods with well-known benchmarking datasets. To further improve the proposed method, a new approach for stop criterion that is based on the change rate of entropy was also explored. From the experimental analysis, it is noticed that the threshold based …

Opinion Formation About Childhood Immunization And Disease Spread On Networks, Shan Shan Zhao

Theses and Dissertations

People are physically and socially connected with each other. Those connections between people represent two, probably overlapping, networks: biological networks, through which physical contacts occur, or social network, through which information diffuse. In my thesis research, I am trying to answer that question in the context of pediatric disease spread on the biological network between households as well as within them and its relationship with information sharing on the social network of households (parents in that case) via "Information Cascades." I mainly focus on the Erdos-Renyi network model. In particular, I use two different but overlapping Erdos-Renyi networks for the …

Design Of Three-Dimensional Near-Zero Refractive Index Metamaterials, David Flores Iii

Theses and Dissertations

Near-zero refractive index metamaterials exhibit remarkable electromagnetic properties which can and will be applied in the near future. From the known methods of achieving near-zero refractive index, this work primarily focuses on the design of 3D metamaterials whose permittivity and permeability are both close to zero while maintaining relatively low loss factor. The design of the metamaterials is based on the chiral shape “omega” and designed to weave periodically as a fishnet. Theoretical analysis, computer modeling and simulation are steps taken in the design of metamaterials. A computational tool based on the robust method for effective parameter extraction is successfully …

Save My Sins For Sunday, Gabriel Leal

Theses and Dissertations

This is a collection of poetry that depicts the struggles of family separation, to the street and drug life, to the questioning of faith and religion, to the revelation that education was the only means of escape. Set in the Rio Grande Valley, this collection allows the reader to travel though the rough streets of South Texas where anger, pain, and joy coincide. Embedded in a Tex-Mex voice, I take you through my experiences that allowed me to see that there was no future for me in the streets and that I would rather be institutionalized by universities, rather than …

The Indelible Power Of The Intraverbal: Expanding The Intraverbal Repertoire And Utilizing Conditioned Praise Words To Decrease Problem Behaviors Of Typically Developing Students In Schools, Jose A. Zamudio

Theses and Dissertations

This study tested a disciplinary strategy that aimed at teaching students positive behaviors to decrease (or eliminate) problem behavior at school. In this study, data of five disruptive students from a middle school in South Texas were analyzed to evaluate the outcomes of the disciplinary strategy implemented by a disciplinary program facilitator at the campus. Students were conditioned to be more receptive to particular praise words related to positive thinking, and ten teachers at the campus were trained to deliver the conditioned praise words when the students expressed positive behaviors that corresponded with the conditioned praise words. Positive thinking celerated …