Digital Commons Network^™

The Impact Of An Inclusive Curriculum On Attitudes Toward Sexual Minority Populations, Kirstin Kaylene Johnson

Theses and Dissertations

The current study examined changes in heterosexual individuals’ attitudes toward sexual minority populations when exposed to inclusive curriculum materials. Participants were randomly assigned to receive one of two sets of curriculum materials (i.e., inclusive or non-inclusive). Inclusive materials provided representation of sexual minority individuals, whereas the non-inclusive materials provided representation of only heterosexual individuals. Participants completed a survey that included measures of attitudes toward sexual minority individuals before and after exposure to the curriculum. Hypotheses that individuals exposed to inclusive curriculum would have improved attitudes towards sexual minority individuals from pre-test to post-test were not supported. The hypothesis that several …

Effectiveness Of A Vaccination Education Module For College Freshman, Gavin Robert Behunin

Theses and Dissertations

The purpose of this thesis is to evaluate a vaccination education module and evaluate its effectiveness to improve vaccine beliefs and behaviors among college freshmen. The participants included 177 college freshmen at one Utah university. Participants were eligible for this study if admitted as a new freshman during the 2019-2020 school year. The study was a cross-sectional pre- and post-education evaluation assessing vaccine beliefs and behaviors using a Likert-type scale. After completing the vaccination education module, participants' vaccine beliefs and behavioral intentions improved. Participants reported they were more likely to be up-to-date on personal vaccines and more likely to expect …

Design Of A Pneumatic Soft Robotic Actuator Using Model-Based Optimization, Mahsa Raeisinezhad

Theses and Dissertations

In this thesis, the design and optimization process of a novel soft intelligent modular pad (IntelliPad) for the purpose of pressure injury prevention is presented. The structure of the IntelliPad consists of multiple individual multi-chamber soft pneumatic-driven actuators that use pressurized air and vacuum. Each actuator is able to provide both vertical and horizontal motions that can be controlled independently. An analytical modeling approach using multiple cantilever beams and virtual springs connected in a closed formed structure was developed to analyze the mechanical performance of the actuator. The analytical approach was validated by a finite element analysis. For optimizing the …

Investigation Of Single, Binary, And Ternary Metal Oxides Of Iridium, Rhodium, And Palladium For Neural Interfacing Applications, Gregory Vincent Taylor

Theses and Dissertations

In this dissertation, thin film single, binary, and ternary metal oxides of iridium (Ir), ruthenium (Ru), rhodium (Rh), and palladium (Pd) were synthesized for use as electrode/microelectrode coatings for neural interfacing applications using DC reactive magnetron sputtering. Synthesis conditions which enhanced the electrochemical properties of films as measured by cyclic voltammetry and electrochemical impedance spectroscopy in a phosphate buffered saline solution of the single metal oxides were identified to be 30 mTorr working pressure, 20% oxygen partial pressure, and cathode power densities ≤ 4.9 W/cm². These parameters were then used to develop the binary and ternary metal oxide …

Is Variability In Inhibition-Related Neural Activation After Sleep Restriction Associated With Eating Behavior In Adolescents?, Kimberly A. Barnett

Theses and Dissertations

The primary aim of the present study was to evaluate whether intra-individual variability in inhibition-related neural activation in response to sleep restriction is associated with eating behavior in adolescents aged 12-18 years. In addition, the potential moderating effects of sex and body mass index on the association between sleep and variability in neural activation were examined. This study employed a within-subjects crossover design that randomized subjects to both a 5 hours per night (sleep restricted) and 9 hours per night (well-rested) sleep condition for 5 nights, with experimental conditions separated by four weeks. On the 6th day of each study …

The Use Of Nonword Repetition Tasks In The Assessment Of Developmental Language Disorder In Bilingual Children, Kirsten Kelly

Theses and Dissertations

To address the needs of the growing number of Spanish-English bilingual children in the United States, Nonword Repetition (NWR) tasks were created to reduce testing bias in the assessment and diagnosis of children with developmental language disorder (DLD). Several studies have shown promising results in the use of NWR tasks; however, fewer studies have addressed questions such as the use of different scoring methods or analyzing error patterns. Thus, this study was conducted to address these gaps in the research. An English and a Spanish NWR task were administered to 26 Spanish-English bilingual school aged children (6;0-9;4). Two different scoring …

The Facts Of Life: Professional Identity Narratives Of Expatriate Language Instructors In Egypt, Sierranicole Butler

Theses and Dissertations

This study uses a narrative approach to investigate the lived experiences of two expatriate TESOL instructors at a private university in Egypt. Through the use of observations and interviews, the researcher analyzed how the emotions and beliefs of experienced expatriate TESOL instructors influence, shape, and are shaped by their Language Teacher Professional Identities. Farrell’s (2011) Professional Role Identities codes were used. The study revealed that expatriate language instructors face a number of trying experiences when teaching students, interacting with colleagues, and taking on various leadership roles within their institutions based on a number of factors including their own beliefs, backgrounds, …

Trading The Days Vs. Days Of Trading: An Empirical Literature Survey On Calendar Anomalies Across Markets, Mariam Ashraf Kiryakos

Theses and Dissertations

This thesis provides a comprehensive theoretical and empirical review of over five decades of research on two of the most examined calendar anomalies: the day-of-the-week and weekend effect. The expansive literature is classified into five different phases to demonstrate and review the evolution of research on these two seasonal anomalies. It also reconciles empirically the seemingly contradicting evidence documented by prior studies by adopting the lens of Adaptive Market Hypothesis (AMH) and conducting a cross-market analysis on the two calendar anomalies using the headline stock market indices of the ten largest economies by GDP as of 2019. The main methodology …

Impact Of Second Language Acquisition On Cerebral Matter In Adult Monolinguals, Benjamin D. Jorgensen

Theses and Dissertations

Second language acquisition has proven to impact the brain in many ways. Studies have shown a distinct difference between the monolingual and the bilingual brain. These structural differences have included an observable increase in cortical thickness in bilingual individuals when compared to monolinguals. This is a significant observation since many neurological diseases and impairments have been connected to a decrease in cortical thickness. However, previous studies have focused solely on bilinguals who had acquired their second language early on in life. These studies have failed to focus on the potential impact that could be observed on the cortical thickness of …

Zero-Energy Tuning Of Silicon Microring Resonators Using 3d Printed Microfluidics And Two-Photon Absorption Induced Photoelectrochemical Etching Of Silicon, Kevin Eugene Larson

Theses and Dissertations

This thesis presents a novel method of modulating silicon photonic circuits using 3D printed microfluidic devices. The fluids that pass through the microfluidic device interact directly with the silicon waveguides. This method changes the refractive index of the waveguide cladding, thus changing the effective index of the system. Through using this technique we demonstrate the shift in resonant wavelength by a full free spectral range (FSR) by increasing the concentration of the salt water in the microfluidic device from 0% to 10%. On a 60 μm microring resonator, this equals a resonant wavelength shift of 1.514 nm when the index …

Racist Securitization Of Refugees, Syrian Refugees In Lebanon: A Case Study, Hind Alhelou

Theses and Dissertations

With the growing rates of involuntary (forced) migration and even traditional migration (movement from one country to another in search of work opportunities, better lifestyle, study, etc.); the movement of these bodies raises their vulnerability to be constructed as threats. The same threat they are fleeing from is being attached to them as they attempt to seek security elsewhere. This intersection of migration and securitization studies especially emerged because of the interconnectedness of the world that is majorly facilitated by globalization.

Within this context, this thesis examines how Syrian refugees in Lebanon are racialized because of a securitization process perpetuated …

Behavioral And Neural Correlates Of Sensory Processing And Anxiety In Autistic Children, Kelsey Lee Ustach Tindall

Theses and Dissertations

Children diagnosed with Autism Spectrum Disorder (ASD) are known to experience higher levels of sensory processing differences as well as anxiety, compared to the neurotypical population (NT). Both theory and evidence suggest that there is an interrelationship between sensory processing, anxiety and fear, and prediction abilities in autism. However, much more remains to be discovered about their relationship and especially underlying neural mechanisms. Thus, the purpose of the current study was to examine the behavioral relationship between sensory processing, fear and anxiety, prediction, and related brain activity in autistic children. To this end, 30 autistic children (ages 6-11 years) and …

Taxonomy And Phylogenetics Of Island Damselflies (Odonata: Coenagrionidae: Vanuatubasis), Natalie Anne Saxton

Theses and Dissertations

Odonata is an order of charismatic insects, commonly called dragonflies and damselflies, that provide a rewarding study system to answer questions such as those related to diversity and biogeography. Despite being relatively well-studied compared to other insect orders, odonates have suffered from inconsistencies and disagreements about proper morphological terminology that provide barriers to incoming workers. These disagreements have subsequently led to confusion and the incorrect application of terms. Here, we clarify the terminology and propose standard terminology for terminal appendages. This terminology is employed in a taxonomic revision of Vanuatubasis Ober & Staniczek, 2009. This endemic genus of damselfly found …

Implementation Of Student-Centered Teaching Methods Among Stem Faculty, Melissa Cavan

Theses and Dissertations

Students at the college level need good instruction and active learning has been shown to improve student retention and learning. Science, Technology, Engineering, and Math Faculty Institution (STEMFI) aims to assist faculty in implementing active learning in the classroom. This qualitative case study sought to understand faculty perspectives two years after completion of STEMFI in the areas of active learning implementation, methodology and student attitudes and impact. Data collected reported that the faculty participants still use active learning strategies in their classrooms two years after exiting the STEMFI program. The faculty also felt the need for a refresher course and …

The Influence Of Pause On Listeners' Perceptions In Speech Of People With Aphasia, Emily Wright

Theses and Dissertations

The purpose of this study was to examine how varying pause lengths in speech of people with aphasia (PWA) influences listeners' perceptions. The study specifically assesses listeners' perceptions of communicative effectiveness and speaker likability. Speech samples from six people with nonfluent or fluent aphasia were obtained from a previous study conducted by Harmon (2018). The speech samples were modified to create four sets of stimuli, including the original recordings, normalized within utterance pauses, normalized between utterance pauses, and normalized for both within and between utterance pauses. Forty listeners rated each of the speech samples based on the perceived communicative effectiveness …

An Eye-Movement Examination Of Gender Stereotype Processing, Elva Adriana Garcia

Theses and Dissertations

The purpose of the present study investigates how bilinguals comprehend gender, especially when one of their languages is grammatically marked in gender. This study explored influences of world knowledge, lexical representations, and language activation in a bilingual population. Eye-movements were recorded as bilinguals read sentences containing gender-stereotyped nouns (e.g., surgeon) followed by a male or female pronoun (he/she) that served as an anaphoric referent. Language dominance in Spanish and English dominant and balanced bilinguals, the gender of the stereotype noun (i.e., female or male), and congruency between noun and anaphor (match or mismatch) were included as variables. The following eye …

What Factors Contribute To A Murder Case Being Designated As A Cold Case?, Claudia Yvette Ortiz

Theses and Dissertations

Homicide is the most serious form of crime and unfortunately, if you are murdered in America, there is a one in three chance that the police will not identify your killer (Kaste, 2015). Unsolved homicide cases are often referred to as “cold cases.” Very little is understood about cold cases and the circumstances under which a case may go “cold”. To investigate the characteristics of cold cases, data from one of the largest cities in Texas (Houston) will be used to compare similarities and differences from Houston’s cleared homicide cases and cold cases. The factors that are the focus of …

Minimal Genomes Simplify The Analysis Of Biological Relationships In Medicine, Taxonomy, Ecology, And Astrobiology, Rafael Deliz Aguirre

Theses and Dissertations

As humans, we continuously thrive to determine meaningful biological relationships between living things on the basis of specific characteristics. Taxonomy is the science that studies these connections for the purpose of naming and grouping organisms as well as identifying logical clusters (i.e, clade). Its origin may be traced as far back as ancient Greece and beyond, and while we explore species diversity, most of our attention focuses on the biomedical and ecological applications of taxonomy. The contemporary taxonomical revolution began with Carl Linnaeus. He established the principles of binomial nomenclature and taxonomical hierarchy that we employ now. Relationships were later …

Aesthetics And Religion: Nietzche And Freud On The Value Of Illusions, Carlos Calderon

Theses and Dissertations

This work will examine the psychological function of religious belief, particularly their capacity to provide guidance and relief from the aspects of existence that prove troublesome. Religions, a culturally instituted set of traditions and practices, have played a significant role in shaping the development of civilization. The collective organization of individuals and the shared acceptance of values has made possible the formation of large and complex social arrangements, making existence for the human species a more bearable enterprise. Interested in the lives of the ancient Greeks, the philosopher, Friedrich Nietzsche, sought to apprehend the mystery of their deities as products …

Elucidating Metabolic And Drug Resistance Adaptations Of Morganella Morganii With Possible Links To Virulence, Yuridia Rodriguez

Theses and Dissertations

The human gut microbiome has recently gained more attention due to its possible links to metabolic disorders such as obesity, autoimmune disorders, gastrointestinal disorders, and stress-related disorders such as depression and anxiety. In addition, the gut microbiome is often a cause of nosocomial infections due to the fact that they can be opportunistic pathogens. Therefore, many studies are now focusing on the bacteria that belong to the human gut microbiota. One such bacterium is named Morganella morganii. M. morganii is a gram-negative rod shaped bacterium that belongs to the Enterobacteriaceae family. It is a highly adaptive species of bacteria that …

Generation Of Antibiotic Resistant Mutants In The Minimal Pathogen Mycoplasma Pneumoniae, Bryant De Jesus

Theses and Dissertations

Mycoplasma pneumoniae (MPN) causes community acquired pneumonia (CAP). The inability to identify M. pneumoniae infections through common clinical screenings has added to the global antibiotic resistance problem. MPN characteristically lacks a cell wall, which prevents proper diagnosis in an infected patient. This has led to the inappropriate prescriptions of antibiotics at insufficient dosages, allowing these microorganisms to thrive at sub-lethal concentrations. The small genome size of MPN, makes it a viable candidate for studying and developing tools to understand the genetic mechanisms behind the acquisition of antibiotic resistance by microbes. This study aimed to generate MPN mutants through prolonged exposure …

Impact Of Intracellular Glutathione Depletion On Neutral Sphingomyelinase In Human Hepatoma Hepg2 Cells, Marie Tanios

Theses and Dissertations

Introduction: Incidence of hepatocellular carcinoma (HCC) has been increasing dramaticallyandliver cancer is the fifth most common cancer globally. Increasing sphingomyelin (SM) hydrolysis via activation of the cell surface membrane-associated neutral sphingomyelinase (nSMase) has been linked to cell proliferation and apoptosis. Glutathione (GSH) depletion was reported to mediate induction of apoptosis via nSMase activation. On the other hand, other studies reported that GSH protected cancer cells against apoptosis. We hypothesized that GSH synthesis inhibition with buthioninesulfoximine (BSO) increases HepG2 cell proliferation. Objectives: The aim of the current study wasto investigate the effect of GSH depletion using BSO on HepG2 cell proliferation …

Formulation Of Coffee Extract As Polymeric Nanoparticles And Studying Their Potential Biological Activities, Nouran Sharaf

Theses and Dissertations

Coffee extract was prepared and optimized (by solvent extraction) and subsequently entrapped into PLGA nanoparticles using single emulsion-solvent evaporation method (using Design Expert software). Dynamic Light Scattering, Scanning Electron Microscope, Fourier Transform-Infrared Spectroscopy and Folin Ciocalteau assay were used to characterize the NPs and to aid in selecting the optimum formulation conditions. The optimized NPs were in-vitro evaluated for their antimicrobial (by agar-well diffusion method), antioxidant (by DPPH assay) and anticancer (by MTT assay) activities. Finally, the release rate study was conducted for the NP sample showing the highly promising results.

The succeeded NP sample, in terms of the most …

On Fabric, Feminism And Faulty Legal Systems: Iran’S 1979 Revolution And Its Politics Of Touch, Zeena Amin

Theses and Dissertations

The intersection of body and state is a fascinating phenomenon of modern-day politics. We are continuously subjected to the ingeniousness with which the ruling classes monitor and regulate our bodies; and most times we are not even aware of it. Whether it is for control over resources or political power and authority, the state uses its institutions and various tools available to it for the purpose of maintaining disciplined, uniform populations that could otherwise threaten prevailing power structures. In particular, the patriarchy has perpetuated the notion that a woman’s body is a specific threat to those prevailing power structures. This …

Indeterminacy Of The Best Interest Of The Child And Shari’A Rules In Custody Adjudications: Egypt Case, Hala Ahmed Nour El-Din

Theses and Dissertations

This thesis argues the rigidity of custody adjudications in the Egyptian Law owing to the indeterminate legal terms and Islamic rules that guide the decision-making process of custody cases. It also proposes reconsideration of the best interest principle’s guiding criteria and custody Shari’a presumptive rules in light of the subjective interpretation of the judges in custody related matters. The principle of best interest (BI) which is the prevailing guiding criterion in regulating all matters related to children, particularly in custody-related decisions. Even though the principle has been present in international law at the beginning of the 20th century, there is …

Stock Market Manipulation Detection Using Continuous Wavelet Transform & Machine Learning Classification, Sarah Youssef

Theses and Dissertations

Stock market manipulation detection is important for both investors and regulators. Being able to detect stock manipulation and preventing it gives investors the confidence in the market fairness and integrity. It also helps maintaining liquidity of the stocks and market efficiency. Implementing data mining algorithms in manipulation detection is a relatively recent technique but in the past few years there has been an increasing interest in it's applications in this domain. The benefit of monitoring manipulative trade behavior is that it can be implemented on live feed of stock data, which saves a lot of time in detecting stock price …

Adjudicating Patriarchy In The Nationality Law, Muhammed Samy Ahmed Mr.

Theses and Dissertations

The Egyptian legal structure has long discriminated against women. Taking nationality law as an example, it is obvious that all consecutive nationality laws have ignored women’s right concerning passing on and acquiring nationality. Even after its amendment in 2004, major gender discrimination still exists. This is caused by the fact that the nationality law is only a part of the legal system. Consequently, its essence will not deviate from the patriarchal composition of the overall nature of the legal system. This paper argues that the existing forms of discrimination in the nationality law correlate with the broader legal environment. Hence, …

Cross-Junction Based Metasurfaces: A Roadmap To Fano Resonances, Mirna Soliman

Theses and Dissertations

The first part of the thesis presents a summary of the classification of materials, followed by the development of metamaterials and their salient role. Then, a study of metamaterials and the evolution of these 3D structures to 2D, known as metasurfaces, have been discussed. Moreover, the physics and practical interest behind Fano resonance have been discussed. Furthermore, the physical fundamentals guiding the performance of both the metamaterials and metasurfaces, including the temporal coupled-mode theory and the generalized laws of reflection and refraction, have been intensely investigated, along with some of the outstanding properties of the metamaterials. Then, a comparison between …

The Impact Of Global Crises On Women: The Case Of Covid-19 In Egypt, Nour A. Dokhan

Theses and Dissertations

Any global crisis is expected to affect every human being, but for women it is always twice as hard. In the case of Covid-19, women are more affected across every domain, from social protection to health, simply because if their gender. This research explores the impact of Covid-19 on women, both economically and socially, with the focus on the case of Egypt. It explores the systematic gender inequalities in the economic, social, and health spheres using cases from previous crises, and how this gender inequality and vulnerability has resulted in much worse consequences of Covid-19 than that of men. The …

Fabrication And Characterization Of Translucent Wood Composite Using Egyptian Hardwoods: Casuarina & Eucalyptus, Sherif Elia

Theses and Dissertations

Due to climate change and global warming, there is an increasing need for sustainable solutions in all industries. As one of the most important and growing industries worldwide, the construction industry has a huge responsibility towards the environment. It is responsible for the consumption of vast amounts of resources and consequently generating massive quantities of waste. Also, as the building sector is responsible for consuming large portions of the world energy and electricity, such buildings' efficiency and sustainability must be considered. While the world is working on balancing between consuming less and recycling more while maintaining the construction materials' effectiveness …