Digital Commons Network^™

Toddler Activity Recognition Using Machine Learning, Pinky Sindhu

Master's Theses

Pinky Sindhu

Loyola University Chicago

TODDLER ACTIVITY RECOGNITION USING MACHINE LEARNING

Toddlers behave differently than adults, to say the least. It is valuable to accurately measure the specific types of physical activity (PA) in toddlers; such information can be analyzed to predict future health prospects in relation to conditions like obesity.

We attached ActiGraph accelerometers to the wrist and waist of toddlers and recorded PAs. Toddlers were videotaped, and their movements were annotated as 20 specific activities. These activities were classified into 3 summary activity intensities including sedentary, light intensity PA (LPA), and moderate to vigorous intensity PA (MVPA).

Automated …

Participation In Medical Research: Reasons Provided In Cognitive Interviews Of A Diverse Sample, Silvia Valadez

Master's Theses

Racial and ethnic minority groups are underrepresented in medical and health-related survey research, with implications for the generalizability across diverse populations of evidence gleaned from these studies. However, there is little known about the respondents’ reasons for participating—or not—in medical research studies, and how these reasons might vary across race/ethnicity, age, gender and education. In this thesis, I extend previous research by looking at data collected from cognitive interviewing techniques to examine 1) participants’ reported likelihood of participating in five increasingly invasive types of data collection, including research studies that ask participants to answer questions about themselves or provide samples …

Surveying Host Innate Immune Responses To Interferon Antagonist-Deficient Murine Coronaviruses, Aaron Brian Volk

Master's Theses

Two coronaviruses (CoVs)—severe acute respiratory syndrome (SARS) virus and Middle East respiratory syndrome (MERS) virus—have emerged in the 21st century from animal reservoirs into the human population, each causing an epidemic associated with significant disease and mortality. CoV epidemics are currently only controllable by rigorous public health measures; no targeted therapeutics or vaccines exist to treat or prevent any human CoV infection. One method of generating attenuated CoV strains to be studied as vaccine candidates involves specifically disrupting CoV-encoded interferon (IFN) antagonists, thereby rendering the virus vulnerable to host innate antiviral immunity. Deubiquitinating (DUB) activity encoded within CoV nonstructural protein …

Assessing English Language Learners' Motivation To Participate In Classroom Discussion, Holly Griskell

Master's Theses

This study assesses sixth-grade Spanish-speaking English Language Learners' (ELLs'; m age = 12.15 years old) participation and motivation to participate in classroom discussion through developing a 20-item measure, the Motivation for Classroom Discussion Questionnaire (MCD-Q) (Study 1 n = 258). We examined the relation between ELLs' bi-literacy and MCD-Q scores as well as amount of talk during discussion, measured by audio-recordings of their English Language Arts class (Study 2 n = 149). Study 1 findings indicated that the MCD-Q items cohered into five motivational constructs (value, language-efficacy, extrinsic motivation, social motivation, and interest). Study 2 findings showed the MCD-Q's predictive …

An Exploratory Study Of Factors Influencing The Success Of Refugee Youth In College And University, Lea Tienou-Gustafson

Master's Theses

The educational needs, challenges and outcomes of refugee youth in the United States have been studied a great deal, particularly in regard to primary and secondary education. There is a dearth of research, however, on the refugee experience in higher education in the United States.

This study seeks to add to the body of literature on refugee education by exploring shared features of the refugee experience in higher education. Through an in-depth study of refugee youth in Chicago, the study seeks to understand their experiences before, while entering and during college and university, particularly how these experiences are tied to …

International Student Intersectionality In The Trump Era, Sarah Tolman

Master's Theses

This study examines the impact of the current U.S. presidential administration's policies and rhetoric on international student experiences and identities. The researcher approaches this question through the theoretical lens of intersectionality, with the goal of highlighting the complexity and diversity of international student identities in this unique historical moment. Through in-depth narratives collected from interviews with 8 diverse international students, it becomes clear that the 2016 presidential election and the administration's rhetoric and policies have influenced international student experiences and identities in significant ways. Students perceive the statements and actions of the current government to have shifted their perspectives and …

Taking A Stand On One Knee: A Content Analysis Study Of The San Francisco 49ers' National Anthem Protests, Jack Hunter

Master's Theses

Previous communication studies have examined media bias in the coverage of social protest movements and issues of race in sports, but until now there has not been an opportunity to combine the two topics. This study examined media bias in coverage of the San Francisco 49ers’ national anthem protests, from August 2016 to February 2018. Utilizing articles from eight different publications, four from local San Francisco Bay Area outlets, and four from nationally syndicated outlets, a content analysis was conducted to determine whether coverage of the protests exhibited bias against the players and whether local sources were more supportive of …

Everybody Else, Patricia Gaglia

Master's Theses

Everybody Else is a novel that follows the story of the Promise Scholars, a group of math whizzes thrust into the media spotlight after a tech billionaire launches an engineering program at their low-income, predominantly black, high school. The purpose of this novel is to explore contemporary racism in America, the complex relationship between philanthropy and poverty, and the role of technology in instigating social change. Each chapter is a complete story, representing a unique first person perspective as the students navigate the closure of their school, the dissolution of their benefactor’s interest, and their enrollment in an affluent neighboring …

Application Of Model Predictive Control In Modular Multilevel Converter For Mtpa Operation And Soc Balancing, Mohit Sharma

Master's Theses

In this thesis, a one-step horizon model predictive control strategy (MPC) is implemented in a multilevel modular converter (MMC) to control the speed of an electric vehicle (EV) motor. Maximum torque per ampere (MTPA) and field weakening (FW) control strategies are used to generate reference signals for maximum torque output. The proposed control scheme aims to track the reference signal by independently regulating voltages from the MMC modules. To achieve this, the switches of the MMCs are directly controlled, eliminating the need for a pulse width modulator. A one-step horizon implementation of MPC ensures the robustness of the control system …

Effect Of Quality Health Care And Support Network On Maternal And Children Outcome In Uganda, Chukwuemeka Ugwu

Master's Theses

About 300,000 women mostly of developing countries die due to pregnancy-related birth complications every year (Smith & Rodriguez. 2015). In Uganda, the maternal death is 1 in every 44 women (State of the World's Mothers' Index 2015, by Save the Children). This places the country as 141 out of 179 by the same ranking. Existing data attributes this anomaly mainly to lack of prompt obstetrics services (Wilunda et al, 2015). Thus, this paper presents empirical evidence of the effect of quality health care and support network on the outcome of a mother and her children during maternity. We employed survey …

Language Abilities In Single- And Dual- Language Learners With Autism Or Other Developmental Disorders, Yael Dai

Master's Theses

Parents and providers worry that exposure to two languages will impair language acquisition in children with autism spectrum disorder (ASD) or other developmental delays (DD). However, limited research to date suggests that language milestones and abilities are unaffected. The current study explored language abilities in toddlers with ASD or DD exposed to one versus multiple languages, prior to any intervention. Results showed slower language acquisition in ASD than DD but no main effect of language exposure group or interaction of language group by diagnosis. This study suggests that bilingual parents can communicate with their children in both languages without harm …

Factors Associated With Violence Against Women In Rural India, Jennifer Lardner

Master's Theses

No abstract provided.

Acceptability And Correlates Of Pre-Exposure Prophylaxis Use For Hiv Prevention Among High-Risk Drug Users In Treatment, Pramila Karki

Master's Theses

Background

Although people who use drugs (PWUD) are a key population recommended to receive pre-exposure prophylaxis (PrEP) to prevent HIV, few data are available to guide PrEP delivery in this underserved group. We therefore examined the willingness to initiate PrEP, the anticipation of HIV risk reduction while on PrEP, and the acceptability of PrEP based on a number of known PrEP attributes among high-risk PWUD.

Methods

In a cross-sectional study of 400 HIV-negative, opioid dependent individuals enrolled in a methadone program and reporting recent risk behaviors, we examined independent correlates of being willing to initiate PrEP. Participants also ranked the …

Human Dimensions Of Timber Rattlesnake (Crotalus Horridus) Management In Connecticut, Lindsay Keener-Eck

Master's Theses

No abstract provided.

Factors Influencing Maternal Involvement In Early Childhood: Exploring The Roles Of Maternal Stress And Children’S Narrative Representations Of Mothers, Rahmet Akpolat

Master's Theses

For children from low-income families, parent school involvement can be a crucial protective factor that supports children’s cognitive and emotional development. The present study seeks to explore how maternal stress in early childhood is associated with mothers’ later school involvement and whether children’s internalized positive, disciplinary and negative maternal representations act as potential mediators of this relationship. Currently, little research has been done on the contextual factors influencing parent school involvement in early childhood and this study aims to fill this gap in the literature. The data included 169 children and mothers from low-income families. Mothers completed questionnaires designed to …

Analysis Of A Newly Digitized Long-Term Dataset Of Environmental Observations From Long Island Sound, Jacob Snyder

Master's Theses

Project Oceanology, a non-profit oceanographic educational organization has been collecting data including pH, oxygen, and temperature conditions as well as abundances of benthic invertebrates and near-shore fish catches since 1972 from Eastern Long Island Sound. These data had been stored solely on single-copy paper sheets and were therefore inaccessible to analysis. I digitized more than 100,000 abiotic measurements and 50,000 species abundance and size data collected over the past 45 years, and developed a web-based SQL database housed on the Long Island Sound Integrated Coastal Observing System (LISICOS) server. The database will ultimately become a searchable, downloadable, user-friendly web-based tool …

Traditional Ecological Knowledge In Collaborative Forest Restoration In The Sierra Nevada, Michael Boero

Master's Theses

Forest restoration in the Sierra Nevada is receiving increased attention due to climate change, increasing populations in the wildland-urban interface, and the historical mismanagement of some forests, evidenced in part by the increasing frequency and severity of wildfires in recent years. In response to an urgency to implement restoration in the absence of consensus on the best ways to proceed, public land managers practice collaborative management approaches to ameliorate antagonism between stakeholders and allow restoration projects to proceed when agreement is difficult to achieve. Stakeholders often include representatives from local community groups, environmental organizations, private industry, and—notably—tribal groups, who hold …

Developmental Effects Of Nicotine Exposure In Drosophila Melanogaster, Lisa Janet Wong

Master's Theses

Approximately 12%-20% of pregnant women smoke at some point during pregnancy, and 10% of pregnant women are reported to have smoked during the last 3 months of pregnancy. Smoking during pregnancy leads to developmental health risks for the fetus and child, including increased mortality, low birth weight, and developmental delays. The direct molecular targets of nicotine are nicotinic acetylcholine receptors (nAChRs) due to the similarities in structure between nicotine and acetylcholine. However, in many cases, it remains unclear what molecular events downstream of nAChRs lead to the deleterious effects of nicotine on development. We have established Drosophila melanogaster as a …

A Novel Model Of “Remedy And Elimination Of Tuberculosis”, Akanksha Mishra

Master's Theses

Tuberculosis (TB), is one of the top ten causes of death worldwide. TB is commonly linked to poverty and creates poverty as it is the single largest cause of death in the 15-49-year-old age group in South-East Asia (WHO, 2017). It is also linked to the HIV population, and its leading cause of death. TB is effected by socio-economic factors, cultural factors, and health policy. My goal of this dissertation is to identify systematic approaches that shall support the mission set by World Health Organization (WHO): to eliminate TB globally by the year 2050. Measures might include addressing social barriers …

Youth Sport Development Pathways And Experiences Of Ncaa Division I Women's College Soccer Players, Emily Hardell

Master's Theses

As youth sport has become increasingly professionalized, many believe that the route to elite level play is through early specialization. Early specialization is a contentious issue, and many risk factors have been associated with high levels and intensities of training in youth. Youth today participate in highly competitive sport in pursuit of elite levels of play, recognition, and financial gain. Early specialization is thought to be a requirement for advancement, yet little is known about the early experiences of team sport athletes who grew up in the US. This is the story of 15 elite female athletes who “made it” …

Authentication And Encryption Of Aerial Robotics Communication, Maojie Han

Master's Theses

As designed to accept custom modules, autonomous aircrafts has developed into a fast-paced industry. The remote-control system of aerial robotics is typically based on wireless communications methods, such as 2.4 GHz, 5.8 GHz, or Wi-Fi. Because the services vary with the communication method, users face different kinds of cybersecurity challenges. This thesis provides an innovative solution for the authentication and security methods in proposed aerial robotics communication network. The thesis begins with an introduction to RF drone communications. After a discussion of the MAV Link communication protocol, the thesis will focus on the differences between the existing one-to-one network and …

Hmong In America: An Emergence Of The American Identity, Nkauj Hli Melinda Lo

Master's Theses

The historical background of the Hmong ethnic group and immigration in regards to how the emergence of the American identity has impacted their cultural identity is examined in this thesis. A qualitative study was conducted to better understand the impacts of immigration and the reasons that younger generations have pushed to be one with the American identity. Drawing upon 10 in-depth interviews of second-generation children of Hmong immigrants, the findings show that the Hmong identity has lost its preservation through the Hmong ethnic group’s experiences in the United States. The researcher found that the American identity affects the Hmong cultural …

Effect Of Land Use Types On The Distribution Of Carnivore Species In Santa Clara County, Ca., Logan Thompson

Master's Theses

Anthropogenic pressures such as habitat loss and hunting pressures have caused terrestrial mammalian carnivores to decline by 95–99% in many regions of the world. These species are especially susceptible to fragmented habitats and a diminishing food supply because of their slow reproductive rates and high metabolic demands. In biodiversity hotspots such as California, understanding the range of human impacts to species is critical. This project assessed carnivore species distribution and occupancy by placing remote camera traps in a protected Reserve, agricultural, and developed land use types. Mountain lions were only detected in the protected Reserve, and because of this coyotes …

Eductional Persistence In Latino Male Students Attending University: Their Experiences And Identity Development, Michelle Swartz

Master's Theses

Because Latino male students have lower graduation rates from high school and postsecondary institutions than other demographic groups have, this qualitative research study examined the psychosocial experiences that influence the development of educational persistence. To this end, eight Latino male undergraduate students, who are also low-income and first-generation students at San José State University, participated in semi-structured interviews in which they discussed their identities and school experiences. An analysis of the eight interviews shows how these students made meaning of their education, gender identity, and ethnicity. The constant comparative method for analyzing interview transcripts revealed the following themes: (a) the …

Small Arms: An Applied Approach To Children In Armed Conflict Prevention Initiatives In Africa, Tristan Burger

Master's Theses

For centuries, children have been used in times of war—serving as porters, cooks, spies, sex slaves, and soldiers. Unfortunately, this phenomenon is still pervasive today with an estimated 300,000 children involved in armed conflict as of 2015. This applied project examines a possible method for preventing the illegal practice of using children in combat by employing a new technology centered on community-based early warning theories. I seek to understand if implementing a text-based, mobile crowdsourcing platform in remote communities in Sub-Saharan Africa will be successful in predicting Lord’s Resistance Army raids, thereby reducing the number of children abducted and/or forcibly …

Urbanization, Land Rights And Development: A Case Study Of Waterfront Communities In Lagos, Nigeria., Gideon Olaniyi Omoniyi

Master's Theses

The aim of this study is to examine the root causes of forced evictions and displacement through the current urbanization process in Lagos, Nigeria. My particular attention is devoted to the legal complexities and how ethnolinguistic identities shape land laws, influence land tenure, and construct urban citizenship. Through this process, competing claims to land ownership provide fertile ground for forced evictions and displacement. Existing scholars suggest that poor urban residents lack rights to stay in their neighborhoods, while a powerful capitalist class has emerged and dispossessed the poor from their lands. Yet these existing approaches derived from the neoclassical and …

Transfer Student Experiences At Stanford University And The University Of California, Berkeley, Rachael Madison

Master's Theses

Elite institutions have a long history of serving students from high socioeconomic status families. Transfer students who begin their college career at community colleges are typically from low-income, first-generation, and underrepresented minority status families. This population of students has historically been underrepresented at elite colleges. The purpose of this study was to examine the community college transfer student experience at two elite universities, one public and one private, and how institutional programs and structures affect the transfer student experience. The study gathered information from eight community college transfer students, four from each elite university, interviewed in one-on-one semi-structured interviews. Four …

Exploring Employment Equity: Diversity & Inclusion In Canada’S Legislation & Policy, Vanessa Toussaint Miller

Master's Theses

Multiculturalism is considered very much a part of Canada’s national heritage and identity, becoming the first nation to adopt multiculturalism as an official policy in 1971. Over the last 40 years, the Canadian population has undergone significant changes bringing in immigrants with different cultures, ideologies, religions and ways of life. Despite the various changes in society, the multiculturalism policies have remained the same. This thesis examines Canada’s Employment Equity-a policy intended to eliminate systemic discrimination in the workplace-and its effectivity at creating a diverse and inclusive workforce. The main research question is, in the past five years, has Employment Equity …

Falling Up: Building Language Use And Cultural Awareness Through The Implementation Of Humor In The Esl Classroom, Glen Kovar

Master's Theses

This study examined the importance of explicitly teaching humor to upper-intermediate and advanced adult English language learners (ELLs), and filled in the gap that exists in studies and literature by examining the use, and implementation of humor in English as a second language/foreign language (ESL/EFL) curricula. Humor is an important human behavior, playing a crucial role in communication, social interactions, and comprehension of a second language (L2) culture. High-level ELLs often lack the linguistic and cultural awareness necessary to effectively communicate. Language courses often accentuate test-taking and language strategies, and courses that explicitly engage with and teach humor to students …

How Patriotic Are Albanians? The Comparative Study Of Patriotic Attitudes In Albania And The Albanian Diaspora, Anxhela Spahiu

Master's Theses

In today’s post-modern digital world, patriotism may not be as prevalent as in the past. In this thesis, my principal aim is to investigate to what extent Albanians, a nationality to which I belong, identify with a patriotic attitude toward Albania. I chose to focus not only on Albanians who live in the diaspora, like myself, but also on Albanians who live in Albania. I believe that to understand national pride to its fullest, you must study the attitudes of those who live in the country of origin as well as of those who live in the diaspora. Many people …