Digital Commons Network^™

Nutrition And Health-Related Quality Of Life In Older Adults In The Us, Nhanes 2009–2012, Jessica Anne Hews

Master's Theses

Few studies have investigated the relationship between diet quality and health-related quality of life (HRQOL), especially in the older adult population that is most at risk for poor diet and health. Self-perceived HRQOL is a more powerful predictor of morbidity and mortality than objective measures of health. The aim of this thesis was to examine the association between nutrition-related factors (especially diet quality) and HRQOL in community-dwelling older adults aged 60 and above. This research used cross-sectional data from the National Health and Nutrition Examination Survey (NHANES) 2009-2010 and 2011-2012 cycles to select and include diet quality variables, meal-related variables, …

How Organizational Communication Shaped The Hearst Ranch Conservation Easement, Mo Tehrani

Master's Theses

The purpose of this study was to show how organizations involved with the Hearst Ranch Conservation Easement negotiations might have used the feedback loop characteristic of two-way Symmetrical communication theory to reach consensus on the Hearst Ranch Conservation Agreement.

Conservation easements are complex situations and each has separate and distinct goals, constraints, compromises, funding mechanisms, and public values.

This study analyzed public documents from seven different organizations that provided input in the public consultations regarding the Hearst Ranch Conservation Easement, which completed in 2005. This study concluded that one of the communication methods adopted during the Hearst Ranch Conservation Negotiation …

Pink And Dude Chefs: Impact Of A Nutrition And Culinary Education Program With Middle School Students In An Afterschool Setting, Jessie R. Bierlich-Wesch

Master's Theses

The epidemic of adolescent obesity has become one of the greatest public health concerns in the United States. Approximately 20.5% of adolescents of both sexes aged 12-19 years are considered obese. Higher rates of obesity are evident in ethnic minority and lower income status children with the highest prevalence among Hispanic/Latino and Black populations. The causes for obesity are multifactorial in nature and highlight disparities nationwide. These factors include socioeconomic status, education, environment, availability and access to fresh fruits and vegetables, and behavior patterns. Successful intervention methods that have reduced the impact of adolescent obesity have incorporated nutrition knowledge and …

Automated Vehicles: A Guide For Planners And Policymakers, Charlie Coles

Master's Theses

Automated vehicles are those which are capable of sensing their environments in order to perform at least some aspects of the safety-critical control (like steering, throttling, or braking) without direct human input. As a guide for planners and policymakers, the objective of this thesis is to develop a strong foundation for anticipating the potential impacts resulting from advancements in vehicle automation. To establish the foundation, this thesis uses a robust qualitative methodology, coupling a review of literature on the potential advantages and disadvantages of vehicle automation and lessons from past innovations in transportation, with recent trends of the Millennial Generation, …

Exploring Transit Ridership Using Census, Routing & Scheduling, And Stop Characteristic Data, Douglas Harvey Moody

Master's Theses

This study develops, analyzes, and a­­­­­pplies transit-system-specific regression tree models that identify and prioritize transit system improvements through analysis and application of ridership, Census, routing and scheduling, and transit stop characteristic data. Regression trees identify and rank independent variables that split dependent variable datasets into meaningful subsets according to significant relationships with independent variable datasets, and regression tree models can be used to identify and prioritize transit system improvements. In this study, ridership datatypes are the dependent variables (i.e., boardings and alightings) and Census, routing and scheduling, and transit stop characteristic datatypes are the independent variables. Data associated with the …

Structural Damage Detection By Comparison Of Experimental And Theoretical Mode Shapes, William George Rosenblatt

Master's Theses

Existing methods of evaluating the structural system of a building after a seismic event consist of removing architectural elements such as drywall, cladding, insulation, and fireproofing. This method is destructive and costly in terms of downtime and repairs. This research focuses on removing the guesswork by using forced vibration testing (FVT) to experimentally determine the health of a building. The experimental structure is a one-story, steel, bridge-like structure with removable braces. An engaged brace represents a nominal and undamaged condition; a dis-engaged brace represents a brace that has ruptured thus changing the stiffness of the building. By testing a variety …

Fluid Flow Characterization In Rapid Prototyped Common Iliac Artery Aneurysm Molds, Daniel Cole Greinke

Master's Theses

The goal of this project was to determine whether i) fused deposition modeling could be employed to manufacture molds for vascular constructs, ii) whether vascular constructs could be created from these molds, and iii) to verify practical equivalence between observed fluid velocities. Dye tracking was to be employed to characterize fluid velocity profiles through the in vitro vascular constructs, including a half-vessel model and a full vessel model of an iliac artery aneurysm. A PDMS half-vessel construct was manufactured, and the movement of dye through the construct was tracked by a cellphone camera. Thresholds were applied to each video in …

Toward High Performance Nanocarbon Fibers, Michaela R. Pfau

Master's Theses

High performance carbon fibers (CFs) have been a commercially available since their commercial boom in the 1970s, and are generally produced via carbonization of poly (acrylonitrile) (PAN). More recently, carbon nanomaterials like graphene and carbon nanotubes (CNTs) have been discovered and have shown excellent mechanical, thermal, and electrical properties due to their sp² carbon repeating structure. Graphene and CNTs can both be organized into macroscopic fibers using a number of different techniques, resulting in fibers with promising mechanical performance that can be readily multifunctionalized. In some cases, the two materials have been combined, and the resulting hybrid fibers have …

Peering In: Improving Existing Buildings With Colorful Increments, Daire Heneghan

Master's Theses

Existing office buildings’ embodied energy, history and culture offer something a newly constructed building cannot. On the other hand, new office buildings’ adoption of new technologies and building philosophies offer a range of sustainable efficiencies previously unavailable. Combining these efficiencies with elements that embrace human diversity and well- being offer the opportunity to not only mend our existing buildings’ deteriorating physical bodies but aid in creating workplaces that promote good physical and mental health.

This project provides recommendation on how an existing high-rise commercial building can incorporate a number of incremental improvements that continually evolve to meet rapidly changing market …

Adolescents’ Emotion Disclosure To Same-Sex And Cross-Sex Friends And Associations With Empathetic Distress And Latino Boys’ Machismo, Janill Marquez

Master's Theses

Friendships are important for social and emotional adjustment. Friendships are adaptive, as they help in the maturation of social skills (Asher, Parker, & Walker, 1996; Berndt, 1982; Sullivan, 1953) and provide emotional and cognitive resources for support and coping (Berndt, 1982). However, not all friendships are created equal. Differences exist across the sexes, particularly in regards to emotion disclosure. The current study assesses girls’ and boys’ emotion disclosure to same-sex and cross-sex friends. It also explores the relationship between emotion disclosure and empathetic distress- a maladaptive form of empathizing with a friend. In a subsample of Latino boys, this study …

Becoming Adults: Trajectories Of Adult Identity Development Among Undergraduate Students With Implications For Mental Health, Jenna Shapiro

Master's Theses

One of the defining developmental processes that occur during the unique stage of emerging adulthood is the emergence of adult identity, or the subjective sense of adulthood. Adult identity has been hypothesized to grow gradually, linearly, and at different rates for subgroups of individuals over the course of this stage (Arnett, 2006; Côté, 2006). Differences have also been suggested to predict wellbeing and distress (Côté, 2006; Kroger, 1996; Kroger, Martinussen, & Marcia, 2010). The goals of the current study were to examine heterogeneity in adult identity development over four years in college and to examine differences in self-esteem and negative …

Metrics Dashboard Services: A Framework For Analyzing Free/Open Source Team Repositories, Fnu Shilpika

Master's Theses

Software engineering as practiced today (especially in the industry) is no longer about the stereotypical monolithic life cycle processes (e.g. waterfall, spiral, etc.) found in most software engineering textbooks. These heavyweight methods historically have impeded progress for small/medium sized development teams owing to their inherent complexity and rather limited data collection strategies that predominated the 1980s until relatively recently in the mid-2000s. The discipline and practice of software engineering includes software quality, which has an established theoretical foundation for doing software metrics. Software metrics are a critical tool which provide continuous insight to products and processes and help build reliable …

Activity Recognition For Incomplete Spinal Cord Injury Subjects Using Hidden Markov Models, Pichleap Sok

Master's Theses

Successful activity recognition in patients with motor disabilities can improve patient care by providing researchers and clinicians with valuable information on patient movements and quality of life in real-world settings. Understanding the everyday activities of patients is important for rehabilitation. For researchers, having convenient, objective, and continuous data can drastically improve outcome measures to better compare therapies, and ultimately make recommendations. For clinicians, individual assessment of compliance and outcomes outside the clinic can be more objective, permitting much more tailored recommendations to patients. Most importantly, for individual patients, activity recognition can make this improved health care possible by simply having …

Cortical And Psychological Mechanisms Of Visceral Pain, Kelly L. Polnaszek

Master's Theses

Objective: Dysmenorrhea is an incapacitating type of visceral pain that affects numerous menstruating women and is defined by painful menstrual cramps and often occurs in the absence of pelvic pathology. Women with dysmenorrhea have reported higher sensitivity to experimental pain, and vulnerability to pain sensitivity may be a primary risk factor for developing chronic pelvic pain for women with dysmenorrhea. Cross-organ sensitization (COS), or the theory that uterine inflammation during menstruation can contribute to chronic pelvic pain by generating neurogenic inflammation in other organs, may be a primary mechanism associated with pelvic pain in women with dysmenorrhea. Dysmenorrhea sufferers with …

Lipoate Metabolism In Staphylococcus Aureus Pathogenesis, Maria Azul Zorzoli

Master's Theses

Lipoate is an essential cofactor of several proteins involved in cellular energy homeostasis and catabolism. Lipoate metabolism has been linked to pathogenesis in some microbial species, but its role in Staphylococcus aureus infections had not been explored. In this thesis, we tested the hypothesis that lipoate acquisition mechanisms promote S. aureus infectivity. We used a bacterial genetics approach to elucidate the biological function of the S. aureus genes involved in lipoate metabolism. Our findings allowed us to propose a model for lipoic acid de novo biosynthesis and salvage pathways in S. aureus. Moreover, we detail hitherto undescribed genetic arrangements of …

The Relation Between Appearance Evaluation And Disordered Eating Attitudes Throughout College: Trajectories And Moderators, Amy Heard

Master's Theses

The college years are a time of increased risk for body image concerns and disordered eating in both men and women. Studies have shown that body image concerns may emerge in childhood, increase throughout adolescence, and become more stable in middle adulthood, but less is known about the changes that happen during the college years that may cause these concerns to level off. One of the most common ways of assessing body image is by measuring appearance evaluation, or global satisfaction with appearance. While problematic appearance evaluation and disordered eating attitudes are often associated with one another, all individuals who …

Popularity Prediction Of Reddit Texts, Tracy Rohlin

Master's Theses

Popularity prediction is a useful technique for marketers to anticipate the success of marketing campaigns, to build recommendation systems that suggest new products to consumers, and to develop targeted advertising. Researchers likewise use popularity prediction to measure how popularity changes within a community or within a given timespan. In this paper, I explore ways to predict popularity of posts in reddit.com, which is a blend of news aggregator and community forum. I frame popularity prediction as a text classification problem and attempt to solve it by first identifying topics in the text and then classifying whether the topics identified are …

A Wholistic Model Of Apologetics For Equipping The Youth, Selim Kesmez

Master's Theses

Problem

While available studies indicate that biblical world view among young adults decreases in years of secular education Adventist education system in Germany is struggling to address the needs of the young adults. The question arises what kind of needs can be identified why they leave faith and church behind and how the Church may counteract this process and provide valuable assistance. The urgency of this question emerges in considering the high rate of de-conversion among Adventist youth.

Method

This study analyzes various studies and statistical reports regarding the condition of the spiritual life of young adults in both the …

Diagnostic Practices Of Autism Spectrum Disorders In Brazil, Ana Claudia Vespa Mainer Dias

Master's Theses

In Brazil, in spite of over half a million students with special needs in primary education, little research has been conducted about ASD diagnostic practices. This involves learning about the training that professionals are receiving, what diagnostic practices are being implemented on the field, and whether those are being contextualized according to the Brazilian culture. Students with special needs are directly affected by the results of diagnostic practices, since identifying the individuals is one of the first steps. Lack of understanding about that stage may lead to the problematic realities of underidentification or overidentification, exclusion of children who should receive …

Perceived Stress And Self-Efficacy As Correlates Of Satisfaction With The Dissertation Process Among Doctoral Students In Educational Psychology In Selected Universities In The United States, Gabriela A. Dumitrescu

Master's Theses

Purpose of the Study

The purpose of this study is to investigate the role of perceived stress and self efficacy on student satisfaction with the dissertation process among doctoral students in educational psychology in selected universities in the United States.

Method

Survey research method was used as the research platform for this study. Online surveys using Survey Monkey were administered to doctoral student in Educational Psychology from selected universities in the United States. Dissertation self-efficacy was measured with the Dissertation Self-Efficacy Scale (DSES; Varney, 2003). Perceived Stress was measured with the Perceived Stress Scale-10 (PSS-10; Cohen, Kamarch & Mermelstein, 1983). …

A Study Regarding Organizational Health, Leadership Styles And Practices And Job Satisfaction In The Associacao Central Amazonas Of The Seventh-Day Adventist Church According To The Perception Of The Pastoral Ministry, Sergio Alan Alves Caxeta

Master's Theses

Problem

Due to the perceived partial insatisfaction on the part of the district pastors and local church leaders in the Associação Central Amazonas (ACeAm) based on the amount of work added to the annual planning and the Organization activities calendar, it was decided to investigate the health organization, the leadership practices and styles, as well as the job satisfaction accrding to the perception of the ACeAm pastoral ministry which may be at the basis of the problem

Method

The study was conducted among AceAm 59 pastors divided in three leadership categories described as Top Leadership, Management and Work Force according …

A Study Regarding Organizational Health, Leadership Styles And Practices And Job Satisfaction Within The West Central Brazil Union Mission Of Seventh-Day Adventist Church According To The Perception Of The Employees Of The Administrative Office, Alijofran Lima Brandao

Master's Theses

Problem

Evaluations done at the West Central Brazil Union Mission office in 2015 found that the items related to proactive attitude and job satisfaction of the employees had the lowest score. Both the general evaluation and the self-evaluation revealed that creativity, conflict resolution, praises and rebuke, and self-development were the least developed items. It was assumed that the above described situation may reflect leadership practices and styles within UCOB.

Method

The study was conducted among 48 UCOB’s administrative office employees divided in three categories as described by the OLA research instrument (Top Leadership, Management and Work Force), which analyses the …

Understanding Academic Achievement Among Low-Income, Urban, Black Adolescents: The Role Of Father Involvement, Patrick Henry

Master's Theses

Although the Black-White test score gap has improved over time, it still persists. Furthermore, this academic risk for Black youth is compounded by the disproportionate representation of Blacks among low-income families in the U.S. Thus, the present study aims to shed light on factors related to greater academic success among adolescents in low-income, urban, Black families. Overall, this study addresses the following question. How does the presence of a biological father and positive father involvement impact the academic achievement of their adolescent children? Data from the Welfare, Children, and Families: A Three-City Study (TCS) were analyzed in order to address …

Waiting On You: A Study Of Tipped Minimum Wages' Effects On Job Tenure Among White Restaurant Servers, John Henry Sienkiewicz

Master's Theses

Many restaurant servers do not make adequate earnings under the current tipped wage system in America. On top of this, restaurant servers largely lack benefits such as paid sick days and health insurance. Unsurprisingly, those in the food and accommodation industry exhibit among the highest rates of voluntary turnover. As research has shown that raising the non-tipped, standard minimum wage decreases employee turnover and increases overall job tenure, it follows that increases in the tipped minimum wage may increase job tenure for restaurant servers. Using survey data from nearly 1700 white restaurant servers from 2006, this multiple regression analysis shows …

An Qualitative Study Of The Meaning High School Students Ascribe To Occult Media Consumption, Jalisha Tolbert

Master's Theses

This qualitative research design explored how high school students ascribe meaning to occult media in pop culture, and it explore possible effects of occult consumption impacting their life aspirations. The research conducted at a high school located on the west side of Chicago, Illinois with a sample size of 10 students from the eleventh grade. First, an exploratory assessment will show how youth ascribe meaning to occult media consumption, and in turn, qualitative interviews presented whether it imposed any effects on life aspirations. The qualitative methods included a qualitative interview, where the researcher asked each participant to explore the meaning …

Global Human Trafficking: New Insights On An Old Crime, Joanna Surma

Master's Theses

Thousands of men, women, and children become victims to human trafficking each year. Almost every country in the world is affected by this heinous crime. Human trafficking exists in many different forms including sexual exploitation, slavery, forced labor or servitude, the removal of organs, child soldiers, etc. Despite the age-old practice being traced back to the 13th century, it continues to exist and even grow today. Unfortunately, not much research is available on the topic. Combating human trafficking is a growing priority for many governments; however, certain obstacles to data collection and analysis continue to exist. Recently, a new study …

Lactobacillus Crispatus Produces A Bacteridical Molecule That Kills Uropathogenic E. Coli, Katherine Diebel

Master's Theses

As many as 1 in 2 women will have at least one urinary tract infection (UTI) in their lifetime. UTIs can cause complications in pregnancy and decrease quality of life, and their treatment and prevention are expensive. Uropathogenic E. coli (UPEC) is the primary cause of UTI. The probiotic and bactericidal capacities of gut and vaginal Lactobacillus isolates have been studied, but the same attention has not been paid to urinary strains. These urinary isolates of L. crispatus appear to have a greater killing capacity against UPEC and this bactericidal activity does not depend on the cells themselves, consistent with …

Examining Urban African American Adolescent Perceptions Of Neighborhood And Time Spent In Risky Contexts: Cross-Sectionally And Longitudinally, Kevin Michael Miller

Master's Theses

The purpose of the current study was to cross-sectionally and longitudinally examine the relationship between adolescent perceptions of their neighborhood and time spent in “risky contexts.” Specifically, the relationship between adolescent perceptions of neighborhood danger and the percent of time spent with older peers or outside was examined. In addition, this study analyzed the relationship between youth perceptions of neighborhood support and the percent time they spent with older peers or outside. All these relationships were also explored in regard to the moderating impact of gender and parental monitoring. An Experience Time Sampling technique (ESM) was utilized to determine how …

A Study Of Immune-Regulation Of Microbiota Supernatant On Macrophage Function, An N. Nguyen

Master's Theses

The diverse human microbial ecosystem colonizes many different body sites. The gastrointestinal (GI) tract, especially, is a major region that that harbors a complex microbial community composed of trillions of commensal bacteria. Interactions between the commensal bacteria and the host immune system begin at birth and continue through the human lifespan. In the gut, commensal bacteria help the host to ensure the maintenance of intestinal homeostasis as well as the mucosal barrier structure through host stimulation of mucus and antimicrobial molecules. The secretion of these host factors functions to inhibit pathogenic invasion and maintain the population of commensal bacteria. The …

Characterization Of Il-22-Producing Cells In The Human Thymus And The Mechanism By Which Il-22 Expression Is Modulated By Thymic Epithelial Cells., Nadine N. Morgan

Master's Theses

Thymic epithelial cells (TECs) are indispensable for T cell development and maturation. Therefore, damages to the thymic epithelial cells are detrimental to thymic function and immune response. In young healthy individuals, TECs have a high regenerative potential and are capable of renewal from serious damage; however, the molecular mechanism of this recovery is unclear. A recent study has shown that IL-22-producing ILCs are present in the mouse thymus and can regenerate thymic epithelial cells following radiation induced injuries. However, it is unknown whether IL-22-producing cells are also found in the human thymus. Thus, the goal of this study is to …