Digital Commons Network^™

Sociocultural Influences On Perceived Risk In Latinos At Risk Of Developing Type 2 Diabetes, Allyson S. Hughes

Open Access Theses & Dissertations

Previous studies have shown that perceived risk is a predictor of positive health behaviors to avert preventative chronic conditions. As a major factor in the Health Belief Model, high levels of perceived risk may operate as a "perceived susceptibility" to disease and may function as a "perceived threat" that triggers action towards preventing the onset of disease (Champion & Skinner, 2008). Following an Ecodevelopmental Model approach in an effort to prevent prediabetes and type 2 diabetes (Castro, Shaibi & Boehm-Smith, 2009) includes understanding the potential protective effects of certain cultural factors (including sources of social support that can promote healthy …

Study Of Materials And Machines For 3d Printed Large-Scale, Flexible Electronic Structures Using Fused Deposition Modeling, Seyeon Hwang

Open Access Theses & Dissertations

The 3 dimensional printing (3DP), called to additive manufacturing (AM) or rapid prototyping (RP), is emerged to revolutionize manufacturing and completely transform how products are designed and fabricated. A great deal of research activities have been carried out to apply this new technology to a variety of fields. In spite of many endeavors, much more research is still required to perfect the processes of the 3D printing techniques especially in the area of the large-scale additive manufacturing and flexible printed electronics.

The principles of various 3D printing processes are briefly outlined in the Introduction Section. New types of thermoplastic polymer …

Rents, Loyalty, And The Economy: How An Unstable Economy Plays A Role In The Occurrence Of Coups D'État, Alexandra Elizabeth Infanzon

Open Access Theses & Dissertations

This Thesis examines why coups d'état still occur, regardless of institution type, in some states but not others. Building off Wintrobe's and Hiroi and Omori's observations, an elite theory is presented that attributes the success of avoiding coups lies in both the stability of economic growth and a system of internal incentives that create a direct link between the government and the people. Without either present, the elite in government are not constrained from engaging in undemocratic behavior and usurping power, ultimately resulting in coups. Using a zero-inflated negative binomial logistic regression, indicators of economic stability and internal loyalty systems …

Communication Of Self And Cyberlife Through Avatars In Second Life Online Communities, Kyron Joseph

Open Access Theses & Dissertations

Virtual worlds are becoming more and more recognized for its social capabilities. It's making a splash on the global scale as the use for virtual worlds is surpassing the expected means of the creators. The purpose of this study is to investigate how users in the virtual world of Second Life identify themselves with fellow users through their Avatars through the theory of narrative identity. In the virtual world of Second Life, there are many different avenues that users can express themselves, through the narrative plot analysis these avenues will show the relation to the users and self.

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Keywords: …

Transition Metal Carbide (Tmc) Novel Materials For Novel Catalytic Applications, Svetlana Lagoykina

Open Access Theses & Dissertations

Transition metal carbides (TMC) constitute a diverse class of materials and traditionally have many technological applications. TMC became a subject of extensive research since 1973, when their platinum -like properties were discovered. They demonstrated high catalytical activity and selectivity in a variety of chemical reaction and have potential for some novel catalytic application.

This research is an effort to design new high effective, selective and stable bimetal or alkali promoted TMC catalyst. After extensive theoretical research a wide range of TMC, including bimetal and alkali promoted carbides, were synthesized by different methods. All solids were characterized by XRD and microscopy. …

The Role Of P62/Imp2 In Breast Cancer Progression, Yang Li

Open Access Theses & Dissertations

Breast cancer is one of the most common types of cancer in women. In most patients with breast cancer, it is not the primary tumor that leads to death, but rather metastatic tumors. Once breast cancer spreads to other organs in the body, the disease becomes almost incurable. It is estimated that about 20% to 50% of patients diagnosed with primary breast cancer will develop metastatic disease. Considering this, it is important to understand the molecular and cellular mechanisms behind metastatic breast cancer and to identify new proteins that regulate the metastatic process. These proteins may be used as targets …

Damas Y Caballeros, Guadalupe Mendez

Open Access Theses & Dissertations

Collected Poetry - Manuscript over socio - political and culturally relevant context.

Bayesian Adaptive Penalized Splines In Nonparametric Regression And In Spectral Time Series Analysis, Luis Angel Mora

Open Access Theses & Dissertations

A Bayesian approach to nonparametric regression using Penalized splines (P-splines) is presented. The approach uses the linear mixed model formulation of P-spines. The usual model assumes a single value for the smoothing parameter controlling the amount of smoothing of the fitted function. The main focus of the Thesis is on spatially adaptive smoothing where the smoothing parameter is a function of the covariate so that different amounts of smoothing are applied in different regions of the covariate. An application to spectral time series analysis will be demonstrated. Markov chain Monte Carlo methods are used to make inference based on the …

Sexual Self-Esteem And Its Relation To Substance Use And Sexual Risk In A Sample Of Latino Men Who Have Sex With Men And Who Are Living With Hiv, Miriam Pando

Open Access Theses & Dissertations

The objective of the present study was to assess whether sexual self-esteem -- an individual's tendency to feel sexually pleased, attractive, and in control of their sexual thoughts, feelings, and behaviors -- influences the relationship between substance use and sexual risk behavior in a sample of men who have sex with men (MSM) and who are living with HIV. We sampled 106 Latino adult MSM living with HIV who were being treated at a clinic in El Paso, Texas that offers comprehensive HIV/AIDS services. We assessed demographic variables, as well as two domains of sexual self-esteem (i.e., overall feeling of …

A Tectonic Analysis On The Central Region Of The Himalaya Collision Zone Using Double Difference Tomography, Chanel Perez

Open Access Theses & Dissertations

The Himalaya mountain range remains the only place on Earth undergoing continuous effects from the continental-continental collision between India and Asia. Because of this, the Himalayas have been subjected to extensive deformation and transpression, and contain five major shear zones. Extensive seismic analysis of the region, however, is lacking due to sparse seismograph coverage and complexity of the crustal structure. I examined seismic event data from two temporary seismic networks deployed in the central Himalaya, the HIMNT deployment from 2001-2003, and the Bhutan deployment from 2002-2003. Using this data I develop a 3-D earth model for the region using double-difference …

Punto Ciego, Adelmar Alvin Ramirez

Open Access Theses & Dissertations

Ciudad Juarez, another type of history shown through newspaper articles and headlines, going against the stereotypical values of violence and feminicides.

Novel Classification Of Slow Movement Objects In Urban Traffic Environments Using Wideband Pulse Doppler Radar, Berta Rodriguez Hervas

Open Access Theses & Dissertations

Every year thousands of people are involved in traffic accidents, some of which are fatal. An important percentage of these fatalities are caused by human error, which could be prevented by increasing the awareness of drivers and the autonomy of vehicles. Since driver assistance systems have the potential to positively impact tens of millions of people, the purpose of this research is to study the micro-Doppler characteristics of vulnerable urban traffic components, i.e. pedestrians and bicyclists, based on information obtained from radar backscatter, and to develop a classification technique that allows automatic target recognition with a vehicle integrated system. For …

Carbon Based Nano-Composite Materials For Energy Storage Applications, Gerardo Rodriguez Melo

Open Access Theses & Dissertations

Energy storage systems and devices are an integral part of advanced electronic technology. Electronic technology is ever-advancing, but in order to do so, it must be supported by all its systems. The energy storage system is one key system that may dictate the performance and limitation of such electronics. Thus, research emphasis on energy storage devices has been on improving the performance of energy storage devices, such as: improved energy and power density, increased stability and cycle life, as well as reduced costs. Lithium-ion-batteries, and supercapacitors offer the potential to meet energy storage demands and to be improved further upon. …

Visual Arts Teacher Preparation, Lucina Rodriguez Zarate

Open Access Theses & Dissertations

Studies have found that visual arts education is an essential part of students' overall educational development. Students exposed to a robust visual arts education develop critical and analytical thinking skills, learn to evaluate their own work and the work of their peers, learn to interpret subject matter in various ways, and are encouraged to engage in their community, all of which help students develop a higher self-esteem and create a positive attitude towards learning. However, to achieve such positive results, visual arts educators need to acquire the proper training to learn how to develop and deliver well-rounded curricula with the …

Development Of A Yeast-Based Assay For The Functional Characterization Of Fkbp52/ Î?-Catenin Interactions With The Androgen Receptor, Theresa Anne Rodriguez

Open Access Theses & Dissertations

Prostate cancer development is uniquely dependent on the androgen receptorâ??s (ARâ??s) transcriptional regulation in response to hormone binding. Current therapies directly target AR acting as an antagonist at androgen binding sites. However, once androgen-dependence is lost, meaning the patient has progressed into a late-stage hormone resistant phenotype, all current treatments are essentially ineffective. Utilizing the yeast strain Saccharomyces cerevisiae we are capable of creating a model system that allows for the exogenous expression of AR while still retaining the chaperone components needed for this steroid receptor complex. The 52kDa FK506 binding protein (FKBP52) has been shown to be an important …

Performance Life Of Various Hot Mix Asphalt Mixtures In Texas, Danniel David Rodriguez

Open Access Theses & Dissertations

Typically, pavement engineers in subjectively estimate the service lives of various hot-mix asphalt (HMA) mixtures as part of the life-cycle cost analysis considering the staged design and rehabilitation of flexible pavements. This study proposes the performance lives for the various dense-graded (conventional) mixtures, stone-matrix asphalts (SMA), permeable friction courses (PFC), performance design mixtures and other mixtures placed in Texas. A necessary and significant aspect of the approach involved data mining and merging several pavement management databases (Letting Database, DCIS and PMIS) to obtain mixture longevity data along with historical PMIS information. The product of the linking process resulted in the …

Mobile Professional Development: Taxonomic Levels Of Learning On Teachers' Tpack Perceptions And Acquisition Of Technology Competencies, Raul Saldana Jr.

Open Access Theses & Dissertations

As it stands, the integration of technology can be advantageous for teachers, students, administrators, and parents, yet teachers are expected to teach and facilitate learning with new technologies in order to prepare students to succeed in a global economy. As the Part D of the Enhancing Education Through Technology Act of 2001 (Part D - Enhancing Education Through Technology, n.d) states, one of its purposes is to "enhance ongoing professional development of teachers, principals, and administrators by providing constant access to training and updated research in teaching and learning through electronic means," one of its goals is to "encourage effective …

The New Dynamics Of El Paso's Post Industrial Development: An Analysis Of The El Paso Chihuahua's Ballpark Controversy, Alan Matthew Serna

Open Access Theses & Dissertations

This Thesis has sought to highlight a controversial event that occurred in El Paso, Texas when a wealthy group of local business interests, entered into a public/ private agreement with the City of El Paso to bring Triple-A baseball to the city. In doing so, the partnership drew large amounts opposition to their plan, when it was revealed that the city hall building would be demolished to make way for a new stadium, and that the issue would not be put to a vote. After analyzing all of the behaviors utilized by both opponents and proponents of the ballpark during …

Contributions To The Solution Of Large Nonlinear Systems Via Model-Order Reduction And Interval Constraint Solving Techniques, Leobardo Valera

Open Access Theses & Dissertations

Many engineering problems boil down to solving partial differential equations (PDEs) that describe real-life phenomena. Nevertheless, efficiently and reliably solving such problems constitutes a major challenge in computational sciences and in engineering in general.

PDE-based systems can reach sizes so large after they are discretized. The large size in these problems generate several issues, among them we can mention: large space of storing, computing time, and the most important, lost of accuracy. A popular approach to solving such problems is assume that the PDE's solution is in a subspace, and the solution is sought there. This assumption and later searching …

The Impact Of Accented English On Speech Comprehension, Benigno Valles

Open Access Theses & Dissertations

ABSTRACT

In the context of shifting demographics in the United States and with an increasing multicultural workforce, the verbal exchange of information is vital especially between health care providers and patients. Although English is the official language in the United States, many individuals from different national origins speak English with some degree of accent. Before we can address health care provider/patient communication, it is necessary to investigate the potential impact of accented English on speech comprehension and its implications on basic communicative interactions. The verbal exchange of information between health care providers and patients is important in diagnostics, treatment, patient …

Effective Number Of Parties And Mass Political Behavior In Europe, Jakub Pawel Zajakala

Open Access Theses & Dissertations

Participation is perhaps the most essential component of democracy, as its humane facet, people, is indispensable for it to occur. However, some aspects of this phenomenon have been disregarded in the existing literature. A discernible decrease in the quality and quantity of democratic participation is deemed to endanger the representative capacity of democracy, and consequently, stability of parliamentary and presidential regimes. Using Prais-Winsten regression, the condition of democratic institutions, with an emphasis on the number of parties, is examined by looking at all the European democracies between 1946 and 2014. This Thesis posits that the number of effective actors on …

A Heterogeneous Multiscale Method For Poroelasticity, Paul M. Delgado

Open Access Theses & Dissertations

In this Thesis, we develop and analyze a heterogeneous multiscale model for coupled fluid flow and solid deformation in porous media based on operator splitting and finite volume method. The splitting method results in two elliptic multiscale PDE's in the form of a reaction diffusion equation and a linear elasticity equation. We extend our previous multiscale method from 1D to higher dimensions and develop new approaches for the inclusion of mixed boundary conditions and source terms. We derive an error estimate for our multiscale method and analyze the stability of our splitting method. We also test the effectiveness of our …

Modeling Of The Response Of A Memcapacitor For An Impulse, Step, Ramp, And Sinusiodal Inputs, Ghassan Khalil Kachmar

Open Access Theses & Dissertations

Micro-Electro-Mechanical Systems, or MEMS, is a technology of very small scale devices. The dimensions of MEMS can vary from below one micron to several millimeters. MEMS have some mechanical functionalities such as the moving plate of a parallel plate capacitor (memcapacitor). MEMS researchers and developers have demonstrated an extremely large number of microsensors for almost every possible sensing modality including temperature, pressure, inertial forces, and chemical species. The equation of motion of the moving plate of a memcapacitor is governed by a non-linear differential equation with no known exact solution. Most research into determining the theoretical response of a memcapacitor …

The Effects Of Baby Sign Training On Child Development, Bethany Iris Urquidi

Open Access Theses & Dissertations

Introduction: Baby sign has gained the attention of many researchers and parents. Relatively little is known about the use of baby sign and the impact it has on the development of children. As the use of baby sign increases in popularity, research studies have had limited and inconsistent results regarding its influence. Purpose: The purpose of this study is to measure the effects of baby sign training on the overall development of normally hearing children while improving on the limitations of current studies (between group study). Methods: Participants in the study included 22 children, ages 6 months to 2 years; …

Progress On A Compact Accelerator Design For A Compton Light Source, K. Deitrick, J. R. Delayen, B.R.P. Gamage, Geoffrey A. Krafft, T. Satogata

Physics Faculty Publications

A compact Compton light source using an electron linear accelerator is in design at the Center for Accelerator Science at Old Dominion University and Jefferson Lab. We report on the current design, including beam properties through the entire system based on a full end-to-end simulation, compare current specifications to design goals, and target areas for improvement.

Evaluation Of Pediatric Manual Wheelchair Mobility Using Advanced Biomechanical Methods, Brooke A. Slavens, Alyssa J. Schnorenberg, Christine M. Aurit, Adam Graf, Joseph J. Krzak, Kathryn Reiners, Lawrence C. Vogel, Gerald F. Harris

Biomedical Engineering Faculty Research and Publications

There is minimal research of upper extremity joint dynamics during pediatric wheelchair mobility despite the large number of children using manual wheelchairs. Special concern arises with the pediatric population, particularly in regard to the longer duration of wheelchair use, joint integrity, participation and community integration, and transitional care into adulthood. This study seeks to provide evaluation methods for characterizing the biomechanics of wheelchair use by children with spinal cord injury (SCI). Twelve subjects with SCI underwent motion analysis while they propelled their wheelchair at a self-selected speed and propulsion pattern. Upper extremity joint kinematics, forces, and moments were computed using …

Rumination: Cognitive Consequences Of Training To Inhibit The Negative, Shimrit Daches, Nilly Mor, Paula T. Hertel

Psychology Faculty Research

Background and Objectives: To explore cognitive factors in ruminative thinking, we assessed the effect of a single-session of inhibition training on subsequent biases in attention and interpretation.

Methods: We randomly assigned participants to either inhibit or attend to negative stimuli. Inhibition was assessed by using assessment trials embedded throughout the training, and interpretation bias was assessed following the training.

Results: Trait rumination moderated training effects on both measures. Low ruminators in the inhibition-training condition maintained their level of inhibition of negative stimuli, but those in the attention-training condition showed a non-significant trend for decreased inhibition. Participants also …

When People Evaluate Others, The Level Of Others’ Narcissism Matters Less To Evaluators Who Are Narcissistic, Harry M. Wallace, Andrew Grotzinger, Tyler J. Howard, Nousha Parkhill

Psychology Faculty Research

Prior studies have documented how people in general respond to others’ narcissism, but existing research offers few clues about whether and how evaluator narcissism influences judgments of traits associated with narcissism. Participants completed the Narcissistic Personality Inventory and then evaluated hypothetical target persons. Target narcissism was conveyed through a single trait description (Study 1), a list of traits (Study 2), or Facebook content (Study 3). Narcissistic qualities were reliably viewed unfavorably, but narcissistic participants were comparatively less bothered by target narcissism and less positive in their judgments of targets without narcissistic qualities. In each study, symptoms of the presence or …

Possibilities For Advanced Practice Nursing Through The Eyes Of Physicians: A Descriptive Qualitative Study In Enugu State, Nigeria, Gabriella Tayo Adjapon-Yamoah

Yale School of Nursing Digital Theses

Nigeria’s critical health care needs and shortage of physicians have led to the independent practice of experienced registered nurses (RNs). These nurses practice without having studied a curriculum specifically geared toward this advanced level, which is not optimal for health outcomes. However, given that Nigeria has not adopted an official advanced practice nurse (APN) role, such training is currently not available.

APNs could provide a skilled, competent choice for Nigerian primary care, but the views of stakeholders like Nigerian physicians may impact official adoption of this role. This paper describes a sample of 12 physicians’ knowledge and attitudes toward the …

Evolution Of A 90-Day Model Of Care For Bundled Episodic Payments For Congestive Heart Failure In Home Care, April Feld

Yale School of Nursing Digital Theses

CMMI’s Episode Based Payment initiatives propose a large opportunity to reduce cost from waste and variation and stand to align hospitals, physicians and post acute providers in the redesign of care that achieves savings and improve quality. Community-based organizations are at the forefront of this care redesign through innovative models of care aimed at bridging gaps in care coordination and reducing hospital readmissions. This article describes a community-based provider’s approach to participation under the Bundled Payment for Care Improvement Initiative and a 90-day model of care for Congestive Heart Failure in home care.