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The Former Asarco Demolition Fallout, A Post Study On Lead Soil Concentrations And Environmental Agents Of Redistribution In El Paso, Texas, Stephanie A. Robinson

Open Access Theses & Dissertations

The former El Paso ASARCO Smelting and Refining Co. operated between 1877 and 1999, the pyrometallurgic activity was estimated to have discharged excess of a 1,000 tons of lead (Pb) into the atmosphere from 1969-71. It was estimated 96 tons of (Pb) were emitted on an annual basis from the standing ore and fluid beds. The Environmental Protection Agency (EPA) determined that lead (Pb) is the heavy metal of the highest concentration within the vicinity of the smelter. After the smelter production ceased, flash flooding common to the southwest, such as the 2006 historic flood, increased transportation of superficial contaminants …

With Great Power Comes Great Responsibility: Navigating Through Year One Of The Principalship, Angela Marie Reyna

Open Access Theses & Dissertations

Given the intense pressures, expectations, and public scrutiny, school principals now undertake even greater roles and responsibilities than their predecessors (DuFour & Mattos, 2013; Kellough & Hill, 2014; Hale & Moorman, 2003; Fullan, 2003; Deal & Peterson, 2010; Koozes & Posner, 2012). New, or neophyte, principals are expected to step in and maintain or increase test scores while navigating intricacies of the new position and school. The socialization experience into a new work environment, which can be magnified for neophyte principals, is a large indicator of principal success (Shaver, 2007). Developing trustworthy relationships with the school community has direct impact …

Investigating A University Classroom Where The Participants Are Purposely Invited, Included, And Engaged Through Liberating Structures, Vanessa Sandoval

Open Access Theses & Dissertations

The purpose of this research was to investigate how a classroom that employs Liberating Structures (LS) is perceived and experienced by class participants. Liberating Structures (LS) are simple protocols of how people interact while they work and learn together, allowing for inclusion and engagement of all participants at the same time. The research examined how the use of LS practices and processes in a classroom influences participants’ sense of inclusion and engagement, their sense of being part of a learning community, and their perceptions of the learning and relational outcomes that accrue. Various methods of data collection and analysis—participant observation …

Experimental Investigation Of Cryogenic Convection And Boiling In Traditionally And Additively Manufactured Rocket Engine Cooling Channels, Armando Sandoval

Open Access Theses & Dissertations

The Center for Space Exploration and Technology Research at the University of Texas at El Paso, has designed, built, and optimized an experimental high heat flux test facility to investigate the heat transfer coefficient of liquid methane and other cryogenic propellants for regenerative cooled rocket engine design. The system is composed of a copper conduction based thermal concentrator that delivers heat flow into a single sub-scaled cooling channel (test article). This study focuses on optimizing this design of the high heat flux test facility to develop a more accurate method for measuring the conductive heat flow going into the cooling …

Pyroelectric Ceramics As Temperature Sensors For Energy System Applications, Jorge Luis Silva

Open Access Theses & Dissertations

Temperature is continuously monitored in energy systems to ensure safe operation temperatures, increase efficiency and avoid high emissions. Most of energy systems operate at high temperature and harsh environments to achieve higher efficiencies, therefore temperature sensing devices that can operate under these conditions are highly desired. The interest has increased in temperature sensors capable to operate and in harsh environments and temperature sensors capable to transmit thermal information wirelessly. One of the solutions for developing harsh environment sensors is to use ceramic materials, especially functional ceramics such as pyroelectrics. Pyroelectric ceramics could be used to develop active sensors for both …

Exposure Of Commercial Titanium Dioxide And Copper Hydroxide Nanomaterials On Basil (Ocimum Basilicum): A Life Cycle And Transgenerational Study, Wenjuan Tan

Open Access Theses & Dissertations

Although thousands of reports have shown that engineered nanomaterials (ENMs) can alter several agronomical, physiological, and biochemical parameters in plant and mammal systems, the effects of long-term exposure and varietal responses are scarce. Titanium dioxide nanoparticles (nano-TiO2) and copper hydroxide nanoparticles [nano-Cu(OH)2], which are widely used in agriculture, medicine, food industry, textile, among other areas, are among the ENMs with high production and consumption globally. Though reports indicate that these ENMs affected plant development and metabolism, their interactions with basil (Ocimum basilicum) are unknown. Basil is a popular culinary herb worldwide, featured in Asian and European cuisine and has more …

Design & Analysis Of A 500 Lbf Liquid Oxygen And Liquid Methane Rocket Engine, Daniel Eduardo Vargas

Open Access Theses & Dissertations

The rapid growth in demand for spacecraft technologies has spawned a need for a variety of new and innovative research. The utilization of liquid oxygen (LOX) and liquid methane (LCH4) in rocket engines have played an important role in space exploration efforts to promote missions to Mars with in-situ resource utilization for propellant production. This will allow the production of fuel needed to come back to Earth making the overall mission more cost effective by enabling larger usable mass.

The Center for Space Exploration and Technology Research has focused its efforts to developing Liquid Oxygen (LOX) and Liquid Methane (LCH4) …

Near-Surface And High Resolution Seismic Imaging Of The Bennett Thrust Fault In The Indio Mountains Of West Texas, Alan Thomas Vennemann

Open Access Theses & Dissertations

My research investigates the structure of the Indio Mountains in southwest Texas, 34 kilometers southwest of Van Horn, at the UTEP (University of Texas at El Paso) Field Station using newly acquired active-source seismic data. The area is underlain by deformed Cretaceous sedimentary rocks that represent a transgressive sequence nearly 2 km in total stratigraphic thickness. The rocks were deposited in mid Cretaceous extensional basins and later contracted into fold-thrust structures during Laramide orogenesis. The stratigraphic sequence is an analog for similar areas that are ideal for pre-salt petroleum reservoirs, such as reservoirs off the coasts of Brazil and Angola …

Comprehensive Finite Element Modeling Of Ti-6al-4v Cellular Solids Fabricated By Electron Beam Melting, Edel Arrieta

Open Access Theses & Dissertations

Additive manufacturing permits the fabrication of cellular metals which are materials that can be highly customizable and possess multiple and extraordinary properties such as damage tolerance, metamorphic and auxetic behaviors, and high specific stiffness. This makes them the subject of interest for innovative applications. With interest in these materials for energy absorption applications, this work presents the development of nonlinear finite element models in commercial software platforms (MSC Patran/Nastran) that permit the analysis of the deformation mechanisms of these materials under compressive loads. In the development of these models, a detailed multiscale study on the different factors affecting the response …

The Human Mitochondrial Chaperonin: It Takes Two Single-Rings To Tango, Adrian Sergio Enriquez

Open Access Theses & Dissertations

The human mitochondrial chaperonin is a macromolecular machine that catalyzes the proper folding and assembly of newly imported mitochondrial proteins into their biologically active state. It is composed of two proteins from the highly conserved heat shock protein family, hsp10 and hsp60, that assemble into large oligomeric complexes responsible for mediating the folding of non-native polypeptides in an ATP dependent manner. In addition to its innate role in protein folding, human mitochondrial hsp60 has been implicated in numerous moonlighting cellular activities that have been linked to diseases conditions such as cancer and neurodegeneracy. In light of its cellular importance, the …

Dft Study Of Adsorption Of Trimetallic Endohedral Fullerenes On Graphene, Nakul Nitin Karle

Open Access Theses & Dissertations

A density functional theory (DFT) study on the geometric and electronic structure of C60 and Sc3N@C80 along with their adsorption on pristine single layer graphene (SLG) is presented. C60 is found to adsorb in two nearly degenerate configurations: (i) with a pentagon facing the SLG, which is the most stable one, and (ii) with a hexagon facing the SLG in a face-to-face perfect alignment, rarely common in Ï?â??Ï? interactions, 0.06 eV higher in energy. The calculated binding energy of 0.76 eV, which includes dispersion effects, is in good agreement with previous theoretical and experimental reports. On the contrary, Sc3N@C80 adsorption …

An Environmental Scan Of Diagnostic Practices For Children With Disabilities In El Paso, Alezandra Martinez

Open Access Theses & Dissertations

With the prevalence of developmental disabilities in the rise in the United States, it is important that these children are identified and diagnosed as soon as possible so that they may receive appropriate medical treatment and intervention. However, research suggests that there are several factors that influence screening, referral, and diagnostic practices. This study aimed to analyze key themes that arose when parents of children with disabilities and pediatric healthcare providers discussed screening, referral, and diagnostic practices for children in El Paso, a medically underserved community. Researchers conducted a 2- phase study that employed both quantitative and qualitative methodology. Results …

The Rhetoric Of Mental Health: An Examination Of The Recategorization Of Autism Spectrum Disorder In The Dsm-5 And Its Absorption Into Public Discourse, Elsa Martin

Open Access Theses & Dissertations

This Dissertation explores the discourse of mental health across genres and public spaces. The research of this project is situated within the overlap of the fields of Disability Studies (Brewer, Selfe, Yergeau, 2014; Brueggeman and Kleege, 2003; Kerschbaum, 2012; Lewiecki-Wilson, 2003) and Rhetorics of Health and Medicine (Keränen, 2013; Kopelson, 2009; Segal, 1994; Scott, Segal, & Keränen, 2013), a space that focuses on the rhetoric of mental health (Chrisman, 2008; Emmons, 2008; Hacking, 2009). Following the principles of these fields, this project deconstructs the recategorization of autism in the DSM-5, the media coverage it received, and the public reception of …

The Texas Sales Tax Rebate Program, Jose Angel Moreno

Open Access Theses & Dissertations

The sale tax rebate program has existed in states along the U.S. â?? Mexico border for over 60 years and, in Texas, it has been the subject of much debate regarding both its legitimacy and its efficacy in stimulating real retail sales particularly in border cities. No empirical research exists, though, that provides insight into the statistical relationships between the Texas retail sector and total certificates issued by Private Customs Brokers (PCBs) in border cities. This study fills this research gap by creating a model that tests the statistical significance of real retail sales on total certificates issued in Texas. …

Source Monitoring In Bilinguals, Renee Michelle Penalver

Open Access Theses & Dissertations

Source memory is memory for the context in which a particular target item is learned (Parker, 1995). The source-monitoring framework is the leading model of source memory (Johnson, Hashtroudi, & Lindsay, 1993). It remains unknown at what level context-to-word associations are made (e.g., at the word form level or conceptual level). Three experiments examined the effects of word frequency and language proficiency on source memory, with each experiment addressing one of the different types of source monitoring identified in this framework. In Experiment 1, we examined how language proficiency and word frequency affect external source discrimination. Participants had to discriminate …

Deep Learning Method Vs. Hand-Crafted Features For Lung Cancer Diagnosis And Breast Cancer Risk Analysis, Wenqing Sun

Open Access Theses & Dissertations

Breast cancer and lung cancer are two major leading causes of cancer deaths, and researchers have been developing computer aided diagnosis (CAD) system to automatically diagnose them for decades. In recent studies, we found that the techniques in CAD system can also be used for breast cancer risk analysis, like feature design and machine learning. Also we noticed that with the development of deep learning methods, the performance of CAD system can be improved by using computer automatically generated features. To explore these possibilities, we conducted a series of studies: the first two studies focused on transferring the original CAD …

Evaluation Of A Nutrition Education Program Targeting Home-Based Child Care Centers, Cassandra Nicole Urrutia

Open Access Theses & Dissertations

Background: The development of a highly obesogenic culture promoting sedentary behavior and the consumption of calorie-dense foods has led to increased levels of overweight and obesity globally. While children and adults are both at increased risk of developing obesity, the risk is even higher in minority and low socioeconomic populations. Changes in familial structure and an increase in mothers of younger children (below the age of 6) entering the workforce have created a new demand for child care services. Although some studies have researched the effectiveness of nutrition programs to increase healthy eating within the child care setting, few have …

The Effect Of Yoga Practice On Glucose Control, Physiological Stress, And Well-Being In Type 2 Diabetes: Exploring A Mechanism Of Action, Maricarmen Vizcaino

Open Access Theses & Dissertations

Multiple studies have found yoga practice to be effective in improving glucose control and other health markers of adults with type 2 diabetes mellitus (T2DM). However, current findings cannot reach a consensus given multiple methodological inconsistencies. The primary purpose of this Dissertation work was to investigate the impact of yoga practice on the glucose control of participants with T2DM through two different approaches in two separate exploratory studies. The first study, a quasi-experimental design, examined the effect of eight weeks of yoga practice on glucose control taking into account previous limitations in the literature. The second study, a single-subject design, …

"Afterword" In Library Information And Resource Sharing: Transforming Services And Collections, Beth Posner

Publications and Research

The concept, practice, challenges and opportunities of information sharing through libraries is explored. Traditional interlibrary loan lending and borrowing remain essential, as do new ways of sharing information among libraries and information seekers.

Schrödinger Theory Of Electrons In Electromagnetic Fields: New Perspectives, Viraht Sahni, Xiao-Yin Pan

Publications and Research

The Schrödinger theory of electrons in an external electromagnetic field is described from the new perspective of the individual electron. The perspective is arrived at via the time-dependent "Quantal Newtonian" law (or differential virial theorem). (The time-independent law, a special case, provides a similar description of stationary-state theory). These laws are in terms of "classical" fields whose sources are quantal expectations of Hermitian operators taken with respect to the wave function. The laws reveal the following physics: (a) in addition to the external field, each electron experiences an internal field whose components are representative of a specific property of the …

Emancipatory Rural Politics: Confronting Authoritarian Populism, Ian Scooner, Marc Edelman, Saturnino M. Borras Jr., Ruth Hall, Wendy Wolford, Ben White

Publications and Research

A new political moment is underway. Although there are significant differences in how this is constituted in different places, one manifestation of the new moment is the rise of distinct forms of authoritarian populism. In this opening paper of the JPS Forum series on ‘Authoritarian Populism and the Rural World’, we explore the relationship between these new forms of politics and rural areas around the world. We ask how rural transformations have contributed to deepening regressive national politics, and how rural areas shape and are shaped by these politics. We propose a global agenda for research, debate and action, which …

Biological Research On Burnout-Depression Overlap: Long-Standing Limitations And On-Going Reflections, Renzo Bianchi, Irvin Sam Schonfeld, Eric Laurent

Publications and Research

In this commentary, we discuss seldom-noticed methodological problems affecting biological research on burnout and depression and make recommendations to overcome the limitations of past studies conducted in this area. First, we suggest that identified subtypes of depression (e.g., depression with melancholic features and depression with atypical features) should be taken into account in future biological research on burnout and depression, given that different subtypes of depression have been associated with distinct autonomic and neuroendocrine profiles. Second, we underline that research on burnout-depression overlap is made difficult by the absence of a consensual conceptualization and operationalization of burnout. In order to …

Fisher V. Ebay, District Of Connecticut

Historical and Topical Legal Documents

No abstract provided.

In Re Cain (Gonzalez V. Twitter), Southern District Of New York

Historical and Topical Legal Documents

No abstract provided.

Bartolucci V. 1-800 Contacts, District Court Of The District Of Columbia

Historical and Topical Legal Documents

No abstract provided.

Vigil V. Take-Two Interactive, Southern District Of New York

Historical and Topical Legal Documents

No abstract provided.

Sojourner Center V. Backpage, District Of Arizona

Historical and Topical Legal Documents

No abstract provided.

Florida Abolitionist V. Backpage, Middle District Of Florida

Historical and Topical Legal Documents

No abstract provided.

Shetty V. Alphabet, Northern District Of California

Historical and Topical Legal Documents

No abstract provided.

Rivera V. Google, Northern District Of Illinois

Historical and Topical Legal Documents

No abstract provided.