Digital Commons Network^™

Do Hotel Guests Act According To Their Intentions As It Relates To Sustainability In A Hotel Setting?, Heather A. Price

Honors Theses and Capstones

As humans continue to use our planet’s resources at a rapid pace, we must act quickly to implement solutions and strategies that will create a positive impact on our environment. The hotel industry represents a huge opportunity for increasing sustainability practices, as these establishments tend to consume tremendous amounts of natural resources through energy and water usage; thus creating quite a bit of waste. For this customer-centric industry, change starts with consumer expectations and intentions to act. The purpose of this study was to assess hotel guests’ values and intentions for sustainable hotels, and compare how this aligns with their …

The Importance Of Transparency And Willingness To Share Personal Information, Drew D. Sullivan

Honors Theses and Capstones

This study investigates the extent to which individuals are willing to share their sensitive personal information with companies. The study examines whether skepticism can influence willingness to share information. Additionally, it seeks to determine whether transparency can moderate the relationship between skepticism and willingness to share and whether 1) companies perceived motives, 2) individual’s prior privacy violations, 3) individuals’ propensity to take risks, and 4) individuals self-efficacy act as antecedents of skepticism. Partial Least Squares (PLS) regression is used to examine the relationships between all the factors. The findings indicate that skepticism does have a negative impact on willingness to …

Modeling Momentum-Diffusion In The Solar Wind, Evin C. O'Shea

Honors Theses and Capstones

The Sun is both a resource and a danger. We must be able to predict or have forewarning of large solar flares and coronal mass ejections (CMEs) and their potential threats to astronauts, GPS, radio communications, and power grids. I have used the Energetic Particle Radiation Environment Module (EPREM) code, which is used by PREDICCS, UNH's radiation dosage predictions website, to model interstellar-pickup ions (PUIs). I add to the model by including a momentum-diffusion term which contributes to the change in the distribution as it evolves in time. Here, I investigate how the given model of momentum-diffusion affects the energetic …

Friend From France: The Popular Image Of The Marquis De Lafayette In Early America, Elisabeth Iacono

Honors Theses and Capstones

This paper addresses the impressions the Marquis de Lafayette made upon the American people during the American Revolution and his return tour in 1824. As someone who has admired Lafayette since I was young, I was aware of the fact that many locations are named after the general and that he plays a prominent role in shows such as the Broadway musical Hamilton. I wanted to study why Lafayette had such an impact on the American people, and why he has been memorialized in a positive manner. As a promoter of liberty, Lafayette was embraced by the colonists for his …

Why Do Makers Make? Examining Designer Motivations On Thingiverse.Com, Courtney H. Shaw

Honors Theses and Capstones

Technological advancements have made a once fictitious dream into a reality. 3D printing has become a popular manufacturing and design technique used all over the world. As this industry becomes more popular, users of these 3D printers are reaching out across the web to share designs, seek help, and build communities of users with similar interests. This study is meant to look at what motivates 3D printing users to participate in online user innovation communities such as Thingiverse.com. This study will explore motivations such as personal needs, financial gains, approval of peers, skill development, and enjoyment. Moreover, it will assess …

Modeling Momentum-Diffusion In The Solar Wind, Evin C. O'Shea

Honors Theses and Capstones

Energetic particles accelerated by large solar flares and coronal mass ejections (CMEs) are a threat to astronauts, global positioning systems (GPS), radio communications, and power grids. It is therefore vital that scientists be able to predict how such particles move and gain energy within the interplanetary medium in order to forewarn society impending hazards so that mitigating actions can be taken. In this work, I take a step towards this goal, using the Energetic Particle Radiation Environment Module (EPREM) code, which is used by UNH's radiation-dosage predictions website, I model interstellar-pickup ions (PUIs). I add to the model by including …

On Numerical Stochastic Optimal Control Via Bellman's Dynamic Programming Principle, Prince Osei Aboagye

Open Access Theses & Dissertations

In this work, we present an application of Stochastic Control Theory to the Merton's portfolio optimization problem. Then, the dynamic programming methodology is applied to reduce the whole problem to solving the well-known HJB (Hamilton-Jacobi-Bellman) equation that arises from the Merton's portfolio optimization problem subject to the power utility function. Finally, a numerical method is proposed to solve the HJB equation and the optimal strategy. The numerical solutions are compared with the explicit solutions for optimal consumption and investment control policies.

Impact Of Patient Demographics And Health Insurance On Hospital Discharge, Ana Acosta

Open Access Theses & Dissertations

Based on discharge data collected with 241 patients who received medical care from a fall injury between 2014 and 2015 at the emergency room in a general hospital in El Paso, Texas, I will examine whether individuals over age 55 have health insurance and the type of care that is recommended to patients after being discharged. In particular, I will examine demographics, including ethnicity, age, and language on whether the patient paid with insurance and the disposition of discharge from the emergency department after a fall. Additionally, I will examine which demographic factors are associated with disposition of discharge- facility, …

An Examination Of Student Self-Regulation Learning Strategies In Online Courses At A Hispanic Serving Institution, Ricardo Acevedo

Open Access Theses & Dissertations

The study examined student utilization and application of learning strategies in college level online courses and the context was a Hispanic Serving Institution (HSI) in the Southwest. Even though online courses continue to grow at a steady pace, few research studies have taken the task to analyze the utilization of learning strategies and their utility in online learning programs and under the fold of student success. The overarching purpose of the present study was to delve into important student factors across learning strategies under this instructional format. For the present study a multivariate analysis of covariance with five outcome variables …

Association Of Opioid Metabolism With Aberrant Drug-Related Behaviors Among Non-Malignant Chronic Pain Patients, Eduardo Aguila

Open Access Theses & Dissertations

An estimated 100 million Americans suffer from some form of chronic pain. Chronic opioid therapy (COT) use in non-malignant chronic pain patients (NMCPP) has markedly increased over the past two decades due to growing consensus that COT is suitable for the treatment of moderate-to-severe non-malignant chronic pain. Yet, COT for NMCPP has been widely associated with multiple aberrant drug-related behaviors (ADRB) such as misuse, abuse, diversion, addiction, and pseudoaddiction. One reason for the relative high incidence of ADRB among NMCPP on COT may be genetics-induced medication response variability, which, can result in pharmacotherapy failure and/or toxicity

The present study evaluated …

Computational Modeling Of Ring Dna-Carbon Nanotube Sensors, Aliasghar Alizadehmojarad

Open Access Theses & Dissertations

Non-covalent interactions between single-stranded DNA (ssDNA) oligonucleotides and carbon nanotubes have provided a unique class of tunable chemistries for applications in nanotube chirality purification, gene delivery, electrochemistry, and nanosensor development. However, mechanistic insight into both the photophysical and intermolecular phenomena underlying their utility in such applications is lacking, resulting in non-systematic approaches to producing DNAnanotube based technologies. In this work, we explore the molecular interactions between ssDNA polymers, in particular (GT)6, and single-walled carbon nanotubes (SWNT) in an ultrasensitive nanosensor for a modulatory neurotransmitters dopamine. Classical molecular dynamics simulations show that (GT)6 oligonucleotides adopt ordered, ring-like conformations around SWNT in …

Superpixel-Based Hyperspectral Unmixing With Regional Segmentation, Mohammed Qassim Alkhatib

Open Access Theses & Dissertations

Unsupervised unmixing analysis aims to extract the basic materials, also known as, endmembers, and their fractions (or abundances) from a hyperspectral image. In this work, a new unsupervised unmixing approach based on Low Dimensional representation with regional analysis is developed. A low dimensional image representation is obtained using superpixel segmentation where each superpixel is represented by its mean spectra. Regional analysis is then performed using the quadtree segmentation based on the Shannon entropy. Endmembers are extracted from each region and combined using clustering into endmember classes. The proposed approach is tested and validated using the HyDICE Urban, ROSIS Pavia, and …

The Process Of Adoption Of Disruptive Innovations In Local Health Care Agencies Delivering Primary Care, Aurora Aguirre Polanco

Open Access Theses & Dissertations

The current state of the U.S. health care system is complex and limit access to care to many consumers, thus compromising their health outcomes. The problems of limited access and questionable quality can be addressed by focusing on enhancing the primary health care field. Improvements in both the access and performance of primary health care agencies, derive in better health outcomes and cost savings to the system in the long-term. Disruptive innovations, that make products and services simpler and more affordable, are adopted in agencies and potentially improve access and performance measures. However, the adoption of disruptive innovations in local …

Effects Of Gradation And Moisture Content On Resistivity Of Mechanically Stabilized Earth Wall Backfill Materials, Jose Luis Arciniega

Open Access Theses & Dissertations

The service life of mechanically stabilized earth (MSE) walls depends on the corrosion rate of the metallic reinforcement used in their construction. The resistivity of the backfill aggregates needs to be measured accurately in order to estimate realistically the corrosion rate of the reinforcement. Resistivity testing is usually performed using the traditional soil box on the portion of the aggregates that passes a No. 10 or No. 8 sieve to either select or reject the backfill. For a more reasonable characterization of the corrosivity of coarse backfills, it is desirable to use their actual gradations. To that end, several resistivity …

Differentiating Darkness: Decision-Making Differences Between Psychopathy And Machiavellianism, Jessica R. Carre

Open Access Theses & Dissertations

Machiavellianism and psychopathy are correlated but distinct personality traits that are associated with interpersonal manipulation and selfish behaviors (Paulhus & Williams, 2002). Based on a recent meta-analytic review, researchers have questioned whether these traits are distinct (Miller, Hyatt, Maples-Keller, Carter & Lynam, 2016). These meta-analytic reviews, however, have largely been based on atheoretical studies examining the relationship of these traits with self-reported outcomes. The purpose of the present research was to directly test the differences between Machiavellianism and psychopathy with respect to fundamental decision-making processes. In study one, the difference between psychopathy and Machiavellianism was assessed in terms of passive …

High Recovery Inland Desalination: A Technical And Economic Performance Evaluation Of Zero Discharge Desalination And Other Technologies, Malynda Aragon Cappelle

Open Access Theses & Dissertations

Increasing population and diminishing freshwater resources are leading to increased competition between users of freshwater, both in terms of surface water and groundwater. Desalination can augment the water supply, but conventional approaches like reverse osmosis are usually limited to 70-80% recovery. Inland brine disposal options are often limited, presenting significant technical and economic obstacles to implementing desalination technology. In comparison to conventional desalination technologies, high recovery desalination methods such as Zero Discharge Desalination (ZDD) offer substantially higher potable water yield (i.e., 95-98%) from brackish water. ZDD is a hybrid process that combines reverse osmosis (RO) or nanofiltration (NF) with electrodialysis …

Improving Time-Of-Flight And Other Depth Images: Super-Resolution And Denoising Using Variational Methods, Salvador Canales Andrade

Open Access Theses & Dissertations

Depth information is a new important source of perception for machines, which allow them to have a better representation of the surroundings. The depth information provides a more precise map of the location of every object and surfaces in a space of interest in comparison with conventional cameras. Time of flight (ToF) cameras provide one of the techniques to acquire depth maps, however they produce low spatial resolution and noisy maps. This research proposes a framework to enhance and up-scale depth maps by using two different regularization terms: Total Generalized Variation (TGV) and Total Generalized Variation with a Structure Tensor …

Photo-Induced Charge Transport In Graphene And Semiconducting Wse2 Integrated With Zero-Dimensional Materials For Enhancing Optoelectronic Device Characteristics, Srishti Chugh

Open Access Theses & Dissertations

Two-dimensional (2D) materials encompass a diverse array of properties from the metallic-like character of graphene to the semiconducting nature of many of the transition metal dichalcogenides (TMDCs) such as tungsten diselenide (WSe2). These materials exhibit intriguing interactions with incoming radiation which makes them interesting for electronics and optoelectronics, especially given the high electron mobility and the ballistic nature of the electronic transport under certain conditions. In particular, the semiconducting TMDCs, such as WSe2, express an indirect-to-direct optical transition with scaling from the bulk to monolayers. Despite the enhanced optical absorption characteristics of monolayer WSe2 stemming from its direct band gap, …

Biologically Available Phosphorus In Biocrust-Dominated Soils Of The Chihuahuan Desert, Grace Margaret Crain

Open Access Theses & Dissertations

In desert soils, phosphorus (P) is an important limiting nutrient and its cycling characteristics are less understood compared to nitrogen and carbon. Phosphorus cycling is controlled by both geochemical and biological factors. Traditionally, P availability has been characterized via sequential extraction analyses such as Hedley fractionation, but newly developed extraction methods allow for the examination of more biologically relevant P fractions, providing insight on mechanisms of P acquisition by plants and microbes. We examined these P cycling features in the context of biological soil crusts (biocrusts), which have been found to be important drivers of nutrient cycling and have the …

Design And Experimental Study Of A High Pressure And Supercritical Methane-Oxygen Burner, A S M Arifur Rahim Chowdhury

Open Access Theses & Dissertations

Directly heated supercritical oxy-fuel power cycles have potential to offer a higher thermal efficiency and lower pollutant emissions compared to existing power cycles. Recent thermodynamic analysis of the cycle performed by several groups including the UTEP-Air Liquide research team show that combustion in the vicinity of 300 bar pressure and 1000-1400 K temperature allows for relatively high system efficiencies while operating within the limit of practical combustor materials. However, the realization of directly heated supercritical power cycle requires combustion systems be designed to operate in supercritical conditions and at temperature far below the blowout limit of conventional flames (above 1500 …

Trace Metal And Metalloid Behavior In The Submicron Scale Components Of Coal Fly Ashes: Insights From Combined Microscopic And Microbiological Studies, Matthew Costa

Open Access Theses & Dissertations

For over a century, coal has been used worldwide to meet ever-growing energy demands. Coal combustion accounts for over 30% of electricity generation in the United States. In the U.S., coal combustion produces annually over 100 million tons of coal combustion products (CCPs) of which only 30% are used in beneficial and economic ways. One of the primary CCPs from coal-burning power plants is fly ash, typically fine-sized and enriched in many trace elements (e.g., arsenic, chromium, lead, and vanadium). When disposed in the environment, fly ash may release significant concentrations of trace elements into surrounding ecosystems and induce toxicity …

Nutrition Label Accuracy And The Theory Of Triadic Influence: The Impact Of Knowledge On Healthy Food Choices In A Predominantly Hispanic Sample, Mosi Staudt Dane'el

Open Access Theses & Dissertations

Unhealthy food choices and the outcomes of those choices are a significant concern in the United States. Multiple governmental agencies recommend using nutrition labels to promote healthier food choices. This study investigated this claim using the theory of triadic influence to examine the efficacious use of nutrition labels on food choices. The theory of triadic influence presents a model of variables that affect food choice, including knowledge pathways on which this study focuses. Within the model, we expected increased scores on two measures of health knowledge to predict nutrition label understanding, which predict healthy food attitudes. Next, we expected that …

Twenty-Sixth Report Of The Florida Ornithological Society Records Committee: 2016, Andrew Kratter

Florida Field Naturalist

No abstract provided.

Back Calculation Of Intelligent Compaction Data For Mechanical Properties Of Soil System, Afshin Gholamy

Open Access Theses & Dissertations

For national economy, it is very important to have a reliable infrastructure. Because of this, all over the world, new roads are constantly being built and old roads are being maintained and, if necessary, expanded and/or repaired. Building a good quality road is very expensive, it costs several million dollars per kilometer. It is therefore crucial to make sure that the newly built and newly repaired roads are sufficiently stiff - so that they can withstand the predicted volume of traffic for a sufficient number of years. Current methods of estimating the stiffness are time-consuming and labor-consuming. The most accurate …

A Narrative Inquiry Of Experiences Of Validation Of Graduate Students In Economics, Eva Ximena Quintana

Open Access Theses & Dissertations

The purpose of this study was to understand the experiences of students in a graduate Economics program located at a predominantly Hispanic-serving institution using narrative research design, a methodology that is not used in economics literature. The research question that guided the study was: How are graduate students validated throughout the process of their graduate education at a Master's in Economics program at a predominantly Hispanic-serving institution? The researcher interviewed 3 graduate women economics students, and 3 graduate men economics students to ensure triangulation of data. After conducting the study it became apparent that graduate women economics students and graduate …

Hybrid 3d Printing Demonstrated By Arbitrary 3d Meandering Transmission Lines, Ubaldo Robles

Open Access Theses & Dissertations

This Dissertation focuses on the automation of multi-material direct write three-dimensional (3D) manufacturing of arbitrary metal-dielectric structures. The technology was demonstrated by manufacturing 3D meandering interconnects and transmission lines (TLs). Manufacturing 3D functional electronics with multiple materials required pushing the current state of 3D printing (3DP) technology to utilize simultaneous multi-material processes combined with sophisticated slicing and bonding under one process. Multi material 3DP is known as hybrid 3DP. This research pioneered the process for producing meandering transmission lines, starting with design and manufacturing, using hybrid 3DP through micro-dispensing and fuse deposition modeling. The research starts by 3DP magnetic and …

Public School Based Early Childhood Teachers' Beliefs And Their Approaches To Curriculum: A Naturalistic Case Study, Jessica D. Slade

Open Access Theses & Dissertations

This study explores the beliefs about teaching approaches and classroom practices of public school-based early childhood pre-kindergarten and kindergarten teachers on the U.S. -Mexico border. Additionally, introduced in this work is a new framework for making visible the belief and practices of classroom teachers, as well as theories and approaches to Early Childhood Education, called the process-product continuum. This naturalist multi-case study utilized semi-structured interviews, classroom observations, artifact collection, and construction of visual timelines from three participants; participant narratives are presented, classroom practices and belief statements are analyzed, and mapped on the process-product continuum. Findings indicate that in addition to …

An Integrated Machine Learning Geological Field Tool In The Age Of Big Data And Drones, Guillermo Vargas

Open Access Theses & Dissertations

Unmanned aerial vehicles (UAVs) and machine learning are relatively new research tools in the geosciences that can be used to collect and analyze large data sets rapidly. We combine the power of rapid data collection using unmanned aerial vehicles with machine learning algorithms to develop a field-based system to identify targeted geological features. For data collection, we have used a commercial-grade UAV which carried visible-wavelength and multispectral (visible- infrared) cameras. We analyzed the data with machine learning and machine vision algorithms that can classify rock units exposed in a field area. We have identified algorithms that in previous literature have …

Electrocatalysts Based On Organic Macrocycles For Electrochemical Water Splitting, Yanyu Wu

Open Access Theses & Dissertations

Water splitting, which is the dissociation of water into hydrogen and oxygen gases, can be separated into two half reactions corresponding to the hydrogen evolution reaction and oxygen evolution reaction (HER and OER, respectively). Both reactions offer a promising way for storing energy into the form of chemical bonds, which is an important strategy for the development of clean-energy technologies. A main area of interest while studying HER and OER is to design effective and robust electrocatalysts made from earth-abundant materials. This dissertation describes several homogeneous and heterogeneous systems for the electrocatalytic generation of hydrogen and oxygen gases.

In Chapter …

Testing Of A 1n Af-M315e Thruster, Daniela Ivette Aguilar

Open Access Theses & Dissertations

The Center for Space Exploration and Technology Research (cSETR) at the University of Texas at El Paso (UTEP) is currently pursuing various space propulsion and small satellite projects. One of these projects is called Orbital Factory X (OFX), which mission is to design a 2U Cube-Satellite (Cube Sat) with 4 green mono-propellant thrusters along with multiple micro-cathode arc thrusters. A CubeSat is a small-scale version of a satellite that is usually placed in orbit for near earth missions. However, they have a relative short life and limited maneuverability due to their limited source of power and restricted payload. Now, technologies …