Digital Commons Network^™

Development And Cost-Effectiveness Of A Malnutrition Screening Program In A Skilled Nursing Setting, Emily Salas-Groves

Master's Theses

Malnutrition increases the cost of healthcare and is commonly unrecognized and untreated. These facts are especially true for healthcare settings that provide care to the elderly. Research emphasizes the need for malnutrition prevention in extended care facilities such as skilled nursing facilities (SNFs) so that patients receive timely and appropriate intervention(s).

The purpose of this study was to retroactively screen SNF patients using four alternative malnutrition screening tools and to compare results to those from the facility screening tool. A second purpose was to estimate differences in potential Medicare reimbursement based on the number of patients identified at risk for …

Finding Our "Happily Ever After": How Poor Fairy-Tale Parenting Breeds A Better Child, Brandie Crain

Master's Theses

This thesis shows how problematic parenting in fairy tales can have a positive influence on children by building their independence and giving them a more realistic and less naïve outlook on life. Fairy tales should not only be present in the childhood of our lives, but throughout every season. Problematic parents are prevalent throughout fairy tales, catalysts for the harm which inevitably comes to their children. However, this harm is usually not their end, as they are forced to self-parent. “All Fur,” “Cinderella,” “Snow White,” “The Juniper Tree,” and “Hansel and Gretel” create the idea that parents are sometimes a …

Design And Fabrication Of Fdm 3d Printed Strain Sensors, Austin Smith

Master's Theses

As technology related to virtual reality, prosthetics, and robotics advances there appears a need for better sensor technology to augment these systems. In particular, many of the systems must interphase with the human body or the environment while maintaining large amounts of mobility and flexibility. This creates the demand for flexible electronics in particular flexible strain sensors to monitor movement. The work presented here explores the feasibility of commercially available elastic filament and desktop Fused Deposition Modeling (FDM) 3D printing as a simple and cost-effective route to develop flexible single-axis strain sensors. 3D printing allows for the rapid production and …

Metal Segregation During The Solidification Of Titanium-Aluminum Alloys For 3d Printing Applications, Jwala Parajuli

Master's Theses

Titanium-Aluminum alloys are one of the widely used alloys in multiple engineering applications. They are highly preferred in Selective Laser Melting (SLM) processes due to their low density, high melting temperature, and good strength. Segregation occurs during the solidification of most alloys and produces a non-uniform distribution of atoms. In SLM, segregation may depict the type of adhesion between the two deposited interfacial layers and the strength between the interphase between an already solidified layer and a new one, and overall, the quality of the printed part. In order to avoid segregation, the understanding of the segregation behavior at atomistic …

Assessing The Adequacy Of The Rate Based System Of Enteral Nutrition Infusion In The Icu Of A Community Hospital, Callie Betman

Master's Theses

The rate based system for delivering enteral nutrition has been found to result in an average delivery of 60-65% of estimated energy and protein needs in ICU patients. Interruptions in tube feedings for surgery, intolerances, and turning/bathing cause underfeeding as the rate based system does not allow the rate to be adjusted for any lost volume. At Northwest Hospital, protocol is to calculate the hourly tube feeding rate over 20 hours, and run over 24 hours, in order to adjust for an expected 4 hours of interruptions per day; however, the effectiveness of this protocol has not been studied. The …

Phytonutrient Intake And Body Composition Color Correlations, Ryan Orgeron

Master's Theses

This study evaluated the role of phytonutrient intake on body composition. Both the quantity and types of phytonutrients in diets were analyzed. Fifty (50) subjects (15 males; 35 females) from Thibodaux, Louisiana, were randomly selected to participate. All participants completed three 24-hour food recalls to gather intake data (food and calorie intake). The phytonutrient index (PI) was an established formula used to calculate the percentage (%) of the diet comprised of phytonutrient rich foods. Three different body assessment tools were used to determine body adiposity (body mass index [BMI], waist circumference, and fat percentage).

Participants who met healthy standards for …

Physiological Response Of The Giant Acorn Barnacle, Balanus Nubilus, To Air Exposure, Emily Jane Resner

Master's Theses

The giant acorn barnacle, Balanus nubilus, is a resident of the subtidal and low intertidal rocky shoreline on the Pacific Coast of North America (Alaska to Baja California). B. nubilusis notable for having the largest muscle fibers in the animal kingdom; fiber diameters that can exceed 3mm in adults! At such extreme sizes these muscle cells may be at risk for insufficient oxygen delivery to mitochondria owing to low SA:V ratios and long intracellular diffusion distances. Oxygen limitation to these muscles may be further exacerbated during low tide air exposure (emersion) or environmental hypoxia events, which are increasing …

Measuring Liquefied Residual Strength Using Full-Scale Shake Table Cyclic Simple Shear Tests, Taylor R. Honnette

Master's Theses

This research consists of full-scale cyclic shake table tests to investigate liquefied residual strength of #2/16 Monterey Sand. A simple shear testing apparatus was mounted to a full-scale one-dimensional shake table to mimic a confined layer of saturated sand subjected to strong ground motions. Testing was performed at the Parson’s Geotechnical and Earthquake Laboratory at California Polytechnic State University, San Luis Obispo. T-bar penetrometer pullout tests were used to measure residual strength of the liquefied soil during cyclic testing. Cone Penetration Testing (CPT) was performed on the soil specimen throughout testing to relate the laboratory specimen to field index test …

Optimizing A Quantitative Real-Time Polymerase Chain Reactionprotocol For The Characterization Of Gene Expression In Blood Vesselmimics, Tristin Mcguffick

Master's Theses

Blood vessel mimics (BVMs) are tissue engineered blood vessels that are intended as an intermediate testing environment for intravascular devices, such as stents. Specifically, Cal Poly’s Tissue Engineering Lab hypothesizes that BVMs can be used to test endothelial cell and smooth muscle cell responses to existing and new vascular stents. Characterization techniques are required for BVMs to be accepted as a valid testing model, prior to being employed as an in vitro model to determine the effects of medical treatments. Quantitative real-time polymerase chain reaction (qPCR) is one available option for evaluating gene expression of tissues. qPCR can be performed …

Covering A Killer: A Content Analysis Of Newspaper Coverage Of White Male Mass Murderers In The U.S, Rhys Hall

Master's Theses

White men represent a disproportionate number of mass murderers via guns/bombings in the U.S. Though, there may be disparities in how often white masculinity is probed as a conflictual site of socialization when compared with other social racial and gender identities. Holding concern for how masculine violence is criminalized across racial lines, I conduct a review of racial typificiations of Black crime in newspapers to juxtapose with contemporary discourse of white masculine crime.

Using content analysis, I examine hundreds of newspaper publications released from 2011-2016 covering mass killers. I look for tendencies from paper writers to minimize sociological similarities between …

Prophecy For Sale: On American Rails, Erik Bryan White

Master's Theses

Prophecy for Sale: On American Rails follows the poetic tradition of Walt Whitman and Lawrence Ferlinghetti. This collection contains five numbered sections which show a progression of the human consciousness. Drawing on the works of Sylvia Plath, Weldon Kees, Jack Spicer, and others, the works in this collection exhibit a strong poetic American voice. Section “I: How Much Longer?” addresses class separation, racism, and inequality. Form mirrors content, confronting a world which seems bent on its own destruction. Section “II: The New Garden,” explores the human impact on nature in more detail and sets up solutions to the problems of …

Ban The Box: Outcomes Of Mandatory Disclosure And Predictors Of Voluntary Disclosure Of Criminal History In Job Applications, Ginevra Marta Scherini

Master's Theses

The present study was conducted in order to examine the outcomes of mandatory disclosure of criminal history on the individual during the job application process and predictors of the likelihood of voluntary disclosure. It was hypothesized that having to disclose criminal history would predict higher levels of self-identification with criminal history, higher levels of experienced discrimination, higher levels of perceived stigma, lower levels of attraction towards the organization, lower confidence in obtaining employment, and lower levels of likelihood of voluntary disclosure. It was also hypothesized that environmental support, employment self-efficacy, self-identification with criminal history, and less experienced discrimination would predict …

A Biochemical Study Of The Autocatalytic Nature Of A Serine Protease (Early Trypsin) From The Aedes Aegypti Female Mosquito, Rachael Marie Lucero

Master's Theses

The female Aedes aegypti mosquito requires specific midgut proteases to digest

blood meals in a biphasic manner for completion of the gonotrophic cycle. The anautogenous nature of the female mosquito has led to the mosquito in becoming an efficient vector in transmitting several bloodborne pathogens: Chikungunya, Yellow Fever, Dengue and the Zika virus. With the many flaws associated with current vector control strategies, our research lab is focused on the development of a potential novel vector control strategy by targeting midgut proteases involved in blood meal digestion. The role of one of the four most abundantly expressed proteases, AaET, an …

(T)Witch Hunting: A Crusade Against Women And Femininity In The Digital Age, Marcus Garcia

Master's Theses

The digital world is an integral part of everyday life regarded as an extension of the self and the physical world. The advent of live video streaming services offers a more interactive form of social media than existing photo and video sharing platforms, like Facebook or Instagram. Twitch, a social video streaming service where people watch live broadcasts of video game play and other various forms of creative content, has contributed to the creation and growth of online communities where variations and similarities between online and offline self are made visible. Early research, specifically concerned with cyberbullying, identifies age, gender, …

A Numerical Study Of The Van Roosbroeck System For Semiconductors, Alan Ghazarians

Master's Theses

Since the 1950s, semiconductors have played a significant and daily role in our lives, as they are the foundation of our computers, phones, and other electronic devices. Aside from their obvious uses, the equations that govern semiconductors have peaked the interest of mathematicians and numerical analysts. In 1950, van Roosbroeck described the fundamental semiconductor device equations as a system of three nonlinear coupled partial di↵erential equations. The van Roosbroeck system poses a challenge numerically because of its strong nonlinearity and coupled equations. Its diculties lie in simultaneously solving drift-di↵usion equations for electrons and holes and using their solutions to solve …

Autonomy In Video Games And Gamification, Jonathan Leventhal

Master's Theses

In the past decade, gamification (using game elements in non-gaming tasks to enhance motivation and engagement) has become a popular concept in many industries, but few studies have explored the principles under which it works. Self-determination theory suggests three psychological needs that gamification fulfills: competence, relatedness, and autonomy. Autonomy, a person's perception that they have the ability to act however they choose, has emerged as an important, yet less-studied aspect in gamification. Inclusion of autonomy in gamification should foster engagement, enjoyment, and better performance. An experiment inspired by the above was carried out in which a sample of college students …

Computational Models Exploring The Role Of Flexibility In Binding Tat Peptide To Tar Rna, Thanh Quoc Le

Master's Theses

Viral-encoded regulatory proteins interacting with RNA target sequences control the gene expression of lentiviruses, notably the human immunodeficiency virus (HIV) and bovine immunodeficiency virus (BIV). The latter provides a simpler interaction model between the viral trans-activator protein (Tat) and trans-activation response RNA element (TAR), including Tat peptides binding to TAR RNA fragments. This model may offer insights into clinical approaches for treatment, initially through theoretical consideration of the role of peptide flexibility in binding as evidenced by literature-based binding assays and NMR. It has more recently been suggested that DNA-protein binding may also be enhanced by increases in conformational entropy. …

Heat Transfer Interface To Graphitic Foam, Fang-Ming Lin

Master's Theses

The A Toroidal LHC ApparatuS (ATLAS) strip tracking detector is scheduled to be upgraded in 2025. The order of magnitude for the hit densities and the radiation damage are expected to increase. When radiation increases, the leakage current increases and the heat generated at the silicon trackers can lead to thermal runaway. Cooling is critical in these detectors.

In this study, a glassy graphitic foam was developed by AllComp Inc.~as a precursor to the adhesives (glues). Graphene\textsc{\char13}s highly anisotropic thermal properties result in high thermal conductivity in the planar direction, while it is low in the normal direction. In these …

An Examination Of The Demographic Antecedents And Job Outcomes Of Participation In Employee Resource Groups (Ergs), Emily Erin Lopez

Master's Theses

Employee resource groups (ERGs) are voluntary, employee-led groups formed in the workplace that focus on providing mutual support for members and that educate the organization about its members’ culture, identity, or experiences. The study’s purpose was to examine demographic antecedents and job outcomes associated with ERG participation. Specifically, this study examined gender identity and professional tenure as demographic antecedents of ERG participation and the relationship between ERG participation and employee outcomes, including job embeddedness and organizational commitment. Participants included 154 individuals employed at a technology company in the Northwestern United States who completed a survey regarding their personal characteristics and …

Characterization Of Four Type-C Silica Columns Using Resveratrol Analogues, Joshua Topete

Master's Theses

High performance liquid chromatography (HPLC) is an analytical technique used to separate, identify and quantify components in a solution based on the affinities between analyte, mobile phase and stationary phase. The main goal of my research is to characterize four Type-C silica columns by comparing the retention of resveratrol analogues. The four columns included are functionalized with either Diamond Bidentate C18 (DBC18), Bidentate C18 (BC18), phenyl hydride or diol groups. Retention maps displaying mobile phase composition compared to compound retention times were compared between columns. In addition to this, two organic solvents (acetonitrile and methanol) were compared. Considering that the …

Numerical Studies Of Turbulence Effects In Cross-Flow Ventilation, Mina Mohammadmirzaei

Master's Theses

Natural ventilation systems reduce a building’s utilization of energy in terms of electricity consumption and fossil fuel usage. Many factors including building shape, window style and configuration, and wind turbulence impact the efficacy of natural ventilation. In order to investigate the effect of turbulence on natural ventilation, twelve different conditions of a cross-flow ventilated room were studied numerically using computational fluid dynamics. Wind tunnel studies of tracer gases in a scale model were used to validate the numerical results. A comparison of twelve investigated cases shows that air circulation inside a natural ventilated room is only slightly affected by turbulence, …

Changes In The Elasmobranch Assemblage In A California Estuary, Catarina Pien

Master's Theses

Elkhorn Slough is an estuarine system that provides habitat for several elasmobranch species. During the past century, the hydrography and habitat of Elkhorn Slough have dramatically changed. Previous studies suggest shifts in the species composition and habitat usage patterns of elasmobranchs. This study characterizes the elasmobranch species composition, and examines the abiotic conditions associated with differences in distribution by sex and life stage. Elasmobranchs were sampled from 2015 –2016 by longline and gillnet. Bat rays (Myliobatis californicus), leopard sharks (Triakis semifasciata), and thornback rays (Platyrhinoidis triseriata) were most commonly observed, and were generally more abundant during the dry seasons and …

All Eyes On You: The Impact Of Increased Surveillance And Media Publicity On Police Identity, Sara Serpa Rodrigues

Master's Theses

The recent surge in media footage surrounding police killings of unarmed black men clearly signifies the national concern for police violence, yet researchers have yet to study police identity in connection with such publicized inequality. This qualitative study closes this gap in research by addressing the following questions: “How do patrolling officers think about and experience their jobs at this particular historical juncture of increased internet and media exposure?” and, “How does the mass exposure and scrutiny of police violence shape police perceptions of their work and impact their work identity?” Face to face semi-structured interviews, symbolic interactionism, and interpretive …

Personality, Motivation, And The War Between Facebook And Twitter, Elizabeth Shallal

Master's Theses

Social networking sites (SNSs) have recently become integrated in modern lives as entertainment, communication, and even careers have become more reliant on them. The current study explored the relationship between Facebook and Twitter attachment and demographic, motivation, and personality traits. Differing psychological relationships may explain why people become more attached to specific SNSs as well as explain their continuance of use. Using online self-report measures, this study measured motivations to use Facebook and Twitter, the Big Five personality traits, and Facebook/Twitter attachment of 109 participants who have been users of both Facebook and Twitter. Results of hierarchical multiple regressions showed …

Job Level And Job Family As Predictors Of Preferences For The Physical Environment, Rachel Smith

Master's Theses

Previous research shows that the physical work environment is related to various work-related employee outcomes. However, researchers have not focused on employee preferences for the physical work environment, nor predictors of such preferences. The current study proposed that job level and job family might predict employee preferences for the layout and design of work environments. The study also examined gender and age as moderators of the relationship between job level and employee preferences, and the relationship between job family and employee preferences. The results of online surveys from 157 employees of a medical technology company showed that job level predicted …

The Effect Of Automating Routine Tasks On Air Traffic Controller Conflict Detection Performance, Lauren Claudatos

Master's Theses

The growing demand for air transportation necessitates the integration of automated support tools to assist air traffic controllers in managing the increase in number of flights. Using archival data from a human-in-the-loop simulation, the current study examined the potential consequence of integrating automated support on eight retired air traffic controllers’ performance and workload in current and projected future levels of air traffic. Two-way repeated measures ANOVA were used to examine workload and conflict detection performance across two levels of simulated air traffic density and two levels of automated routine task support. The participant controllers reported significantly higher workload and exhibited …

Cloud Microphysical Properties Based On Airborne In Situ Observations And Evaluation Of A Weather Forecasting Model And A Global Climate Model, John D'Alessandro

Master's Theses

Global cloud coverage has a substantial impact on local and global radiative budgets. It is necessary to correctly represent clouds in numerical weather models to improve both weather and climate predictions. This study evaluates in situ airborne observations of cloud microphysical properties and compares results with the Weather Research and Forecasting model (WRF) and Community Atmosphere Model version 5 (CAM5). Dynamical conditions producing supersaturated conditions with respect to ice at high altitudes in regions diagnosed by convective activity are explored using observations taken from the Deep Convective Clouds and Chemistry (DC3) campaign, and results are compared with simulated data from …

Micrometeorological Observations Of Fire-Atmosphere Interactions And Fire Behavior On A Simple Slope, Jonathan Marc Contezac

Master's Theses

An experiment was designed to capture micrometeorological observations

during a fire spread on a simple slope. Three towers equipped with a variety of

instrumentation, an array of fire-sensing packages, and a Doppler lidar was

deployed to measure various aspects of the fire. Pressure and temperature

perturbations were analyzed for each of the grid packages to determine if the fire

intensity could be observed in the covariance of the two variables. While two of

the packages measured a covariance less than -15 °C hPa, there was no clear

trend across the grid. The fire front passage at each of the three …

A Glottometric Subgrouping Of The Early Germanic Languages, Joshua Agee

Master's Theses

Historical Glottometry, introduced by Alexandre François (2014), is a wave-based quantitative approach to language subgrouping that is used to calculate the overall strength of a linguistic subgroup using metrics that capture the contributions of linguistic innovations of various scopes to language diversification, in consideration of the reality of their distributions. It primarily achieves this by acknowledging the contribution of areal diffusion to language diversification, which has traditionally been overlooked in cladistic (tree-based) models. In this thesis, the development of the Germanic language family, from the breakup of Proto-Germanic to the latest period of the early attested daughter languages (namely Gothic, …

Objects Of Politics, Objects Of Art: Three Studies On The Display Of American Political Prints, Ricardo Chavez

Master's Theses

Fueled by the radical political thinking of the 1960s and beyond, people in the United States produced artistic responses in the form of political prints and posters for both documenting and actively galvanizing the popular movements of this era. This study analyzes the display of these prints and posters within an art-viewing context. It argues that, with characteristics of both objects of politics and objects of art, these works possess dynamic meaning that can be impacted by the institutional narratives of the locations in which they reside. Looking at three examples of political print exhibitions organized individually by the Museum …