Digital Commons Network^™

Me, Myself, And I: The Impact Of Metacognitive Strategies On Student Locus Of Control And Critical Thinking Skills, Danielle Kuchler

All Master's Theses

We live in an era when a college degree is essentially required for entry into good-paying careers, and yet achievement of a college degree is unacceptably low. Only 60% of students who enroll go on to graduate from 4-year colleges and universities in 6 years or fewer (National Center for Higher Education 2018). Why is this happening? What are the long-term intellectual and economic implications of ill-prepared students? We must ask ourselves if students are really prepared with the knowledge, skills, and dispositions to be successful in college and whether those attributes are developed while in college. Two of the …

Diversity Analysis Of Soil Fungus Communities In Disturbed, Nursery, And Mature Forest Conditions, Dana Whitmore

All Master's Theses

Populations of soil fungi were examined in Derby Canyon Natives, Coeur d’Alene Forest Service nursery, Swamp Lake, and the Keechelus Lake wildlife overcrossing soils. All sampling sites were connected by their relation to the revegetation and native soil plug inoculation of the wildlife overpass. This study was an effort to describe soil fungi communities present on the overpass before plant introduction, those that plants would be bringing in their pots, and the fungi that could be introduced via soil plug transplantation. DNA was extracted from soil samples, then sequenced using next-generation sequencing methods, allowing for the analysis of species richness …

Comparing Students' Perspectives On A Rural University's Special District Police Department And Student's Traditional Hometown Police Departments, Angela Pierce

All Master's Theses

Understanding the public perceptions of police is not a new topic, but it is one that has not focused on that of university students. This current study aims to fill the gap in knowledge by comparing student’s perceptions of two different police departments; traditional hometown police departments and special district police. This study targeted a specific population, college students, that needs additional research to understand what factors contribute to their perceptions of police. This study gathered students’ perceptions of police using an email survey of all on-campus students in a regional state university. Using OLS regression, I was able to …

Effects Of Western Spruce Budworm Herbivory On Forest Soils And Litter Decomposition In Central Washington, Izak R. Neziri

All Master's Theses

Disturbances by herbivores can drive nutrient cycling in forest ecosystems by adding frass, carcasses, and molts to the forest floor which are broken down into nitrogen, phosphorous, and other elements to be recycled into biomass. Western spruce budworms are defoliators native to the central Cascades and their herbivory could increase the decomposition rate of forest materials by adding essential nutrients and/or by increasing light and rainfall penetration to the forest floor by thinning the forest canopy during outbreaks. Budworm defoliation events are expected to increase in severity as the climate warms, potentially altering forest ecosystem function. The purpose of this …

Chimpanzee Early Life Experiences And Responses To Caregiver Use Of Species-Specific Behavior, Emily Patton

All Master's Theses

More than 1,400 chimpanzees live in captivity in the US and each has complex social needs. The humans who care for captive chimpanzees occupy a place within chimpanzee social structures and their actions have consequences on chimpanzee behavior and welfare. Two studies compared chimpanzee responses between a condition in which humans used chimpanzee behaviors (CB) and another in which they use human behaviors (HB) during informal interactions. The chimpanzees showed more affiliative behavior during the CB condition in one study and strong individual variation in responses to the two conditions in both studies. Individual variation in adult primate behavior can …

The Seasonality And Parasite Richness And Prevalence Of The Weddelli’S Saddleback Tamarin (Leontocebus Weddelli), Krista Banda

All Master's Theses

This study surveyed the intestinal helminths (parasitic worms) of Weddelli’s saddleback tamarins (Leontocebus weddelli), focusing on seasonality in parasite prevalence and richness. The collaborative study with Field Projects International took place at the Estación Biológica Rio Los Amigos (EBLA) in southeastern Peru. Fecal samples were collected by following semi-habituated groups of tamarins, yielding 16 samples in the dry season of 2015 and 11 samples in the wet season of 2015-2016. Findings were interpreted to understand trends for parasite prevalence and richness between the two seasons; however, novel helminths for the study species were observed. Trends were interpreted with …

Distribution Of Invasive Plant Species On Debris Cones At Mount Rainier National Park, Shaun Morrison

All Master's Theses

Invasive plant populations within Mount Rainier National Park are a biological and ecological threat to the unique mountain landscape. A better understanding of their distribution and transport within the landscape is needed to improve invasive species monitoring for National Park Service management. This study investigates how invasive plant populations in Stevens Canyon are utilizing the debris cone disturbances and associated geomorphic processes to facilitate movement within the park. Vegetation transects were performed along Stevens Canyon Road (to observe the roadside community composition) and on the debris cone features (to observe species movement from the roadside). These vegetation observations are presented …

Hand Preference For Holding, Tapping, Probing And Digit-Feeding In Captive Adult Aye-Ayes (Daubentonia Madagascariensis), Robert Shaun Mayo

All Master's Theses

Aye-ayes are a species of lemur with several unique characteristics. They have the largest brain to body size ratio of any lemur and are the largest nocturnal primate. Insect larvae are a dietary staple. They use their elongated third digit to tap on structures such as tree bark and their large ears to listen for auditory changes caused by the larvae burrowing through the wood, which creates cavities in the wood. They use their rodent-like incisors to chew a hole in the wood and insert their third digit to probe the cavities, feeling for the larvae. After locating their prey, …

Ecological And Genetic Connectivity Of Shrews (Sorex Spp.) Across Interstate-90 In The Washington Cascade Range, Jordan Ryckman

All Master's Theses

Roads negatively affect wildlife by degrading and fragmenting habitat. The I-90 Snoqualmie Pass East project was established to improve traffic safety for both humans and wildlife. Here, the Washington State Department of Transportation is constructing wildlife crossing structures to increase ecosystem connectivity as part of this project. The goal of my study was to investigate shrews – very small mammals with presumably low mobility and dispersal capacity – at sites on the eastern slopes of the Cascade Range where wildlife crossing structures will be built in the future. My main objectives were to verify shrew species composition, assess population genetic …

Late Holocene Paleoflood Hydrology Of The Snake River In The Lower Hells Canyon, Idaho, Kent C. Allen

All Master's Theses

The Snake River watershed spans a large geographic region from the Rocky Mountains to the inland Pacific Northwest, and a comprehensive paleoflood chronology on the mainstem of the river is key to identifying the frequency and magnitude of large prehistoric floods within the region. We examined and compared four sites of slackwater deposits along a 20-km reach of the Lower Hells Canyon on the Snake River, Idaho. The sites contain evidence of up to 34 paleofloods within the last 1700 years. Stratigraphic breaks, soils, and in-situ plant or archaeological materials demarcate distinct layers that represent discrete paleoflood events. Radiocarbon dates …

Selective Synthesis Of Trans-Fused Lactam-Lactones By Vicinal Difunctionalization Of Readily Affordable Allylic Lactams, Morgan J. Rodriguez

All Master's Theses

With intrinsic versatility and an overwhelming presence in natural products, nitrogen- and oxygen-containing heterocycles boast a plethora of medicinal properties. Specifically, lactams and lactones are the respective luminaries of the antibiotic and flavor worlds. However, the synthesis of fused lactams-lactones, especially those bearing trans-fusion, is challenging from the standpoints of chemoselectivity, stereoselectivity, and regioselectivity. In this thesis, the highly-selective, cost-effective, and high-yielding conversion of readily affordable allylic lactams into trans-fused lactam-lactones by intramolecular vicinal difunctionalization is explored. The approach is highly divergent and requires only two steps, which bodes well for the construction of medicinally pertinent fragments. It …

Dynamic Written Corrective Feedback Among Graduate Students: The Effects Of Feedback Timing, Grant Eckstein, Maureen Estelle Sims, Lisa Rohm

Faculty Publications

Dynamic written corrective feedback (DWCF) is a pedagogical approach that offers meaningful, manageable, constant, and timely corrective feedback on student writing (Hartshorn et al., 2010). It emphasizes indirect and comprehensive written error correction on short, daily writing assignments. Numerous studies have demonstrated that its use can lead to fewer language errors among undergraduate and pre-matriculated college writers (see Kurzer, 2018). However, the benefits of DWCF among second language (L2) graduate writers and the role of feedback timing have not been well examined. We analyzed timed writing samples over a 12-week intervention from 22 L2 graduate students who either received biweekly …

Naming Convention, Interchangeability, And Patient Interest In Biosimilars, Mariana P. Socal, Jace B. Garrett, William B. Tayler, Ge Bai, Gerard F. Anderson

Faculty Publications

Although biosimilars may offer cost savings over their comparable biologics, use of biosimilars in the United States remains relatively low. This study investigates two barriers to uptake of biosimilars in the United States. First, the U.S. Food and Drug Administration requires that four-letter suffixes be added to the nonproprietary names of all biosimilars, as well as to the nonproprietary names of all biologics approved after March 2020. Second, biosimilars are not interchangeable with their reference biologic product at the pharmacy counter; a new prescription is needed for the biosimilar to be dispensed in place of the biologic. We conducted two …

Aging And Efficacy Of Disease-Modifying Therapies In Multiple Sclerosis: A Meta-Analysis Of Clinical Trials, Yinan Zhang, Natalia Gonzalez Caldito, Afsaneh Shirani, Amber Salter, Gary Cutter, William Culpepper, Mitchell Wallin, Peter Kosa, Bibiana Bielekova, Fred Lublin, Olaf Stuve

2020-Current year OA Pubs

Background: Disease-modifying therapies (DMTs) for multiple sclerosis (MS) are approved for the treatment of disease activity and are effective in reducing relapses and new magnetic resonance imaging (MRI) lesions. However, disease activity generally subsides with time, and age-dependent changes in DMT efficacy are not well-established. We aimed to investigate whether age impacts the efficacy of DMTs in treating disease activity in patients with relapsing-remitting MS (RRMS).

Methods: DMT efficacy related to age was assessed through a meta-analysis of clinical trials that evaluated the efficacy of DMTs in RRMS patients as measured by reductions in the annualized relapse rate (ARR), new …

Who Deserves To Be In Stem? How Threat And Confirmation Of The Gender Hierarchy Impact Helping Behavior Towards Prospective Stem Majors, Samantha A. Gnall

College of Graduate Studies: Theses & Dissertations

Current events that either threaten or confirm the current gender hierarchy may impact people differently. This can depend upon one’s group membership and their attitudes towards a fair and just society. When people are asked to help others while facing uncertainty of the hierarchy, they may choose to help or lash out in an effort to re-establish the hierarchy or dismantle the hierarchy. STEM faculty were presented with information that either did not threaten the gender hierarchy (i.e., maintaining gender inequality) or that threatened the current gender hierarchy (i.e., reaching gender equality). Participants were then given an opportunity to offer …

Close Quarters: Seasonal Cestode-Microbe Interactions Within The Guts Of Two North American Sorex Shrew Species, Timothy L. Odom Jr

College of Graduate Studies: Theses & Dissertations

The mammalian gut microbiome has shown to be essential to host fitness and health assisting in both nutrient acquisition from diet as well as protection from pathogens and can include beneficial bacteria as well as parasites such as helminths and protozoans. In this study, I analyzed the cestode and bacterial communities found in the intestines of two North American species of shrew, Sorex monticola and Sorex cinereus. Specimens were collected approximately every three weeks from May to October during 2016 and 2017 as well as during April and May of 2018 and September of 2009 from the Sangre de …

Plasticity And The Impact Of Increasing Temperature On A Tropical Ectotherm, Adam A. Rosso

College of Graduate Studies: Theses & Dissertations

Organisms may respond to climate change through behavior, genetic adaptation, and/or phenotypic plasticity. Tropical ectotherms are thought to be especially vulnerable to climate change because most have a narrow range of thermal tolerance while living close to their upper thermal tolerance limits. Additionally, many tropical species live in closed-canopy forests, which provide homogenous thermal landscapes that prevent behavioral compensation for stressfully warm temperatures. Finally, tropical ectotherms are thought to have decreased capacity for phenotypic plasticity because they have evolved in thermally stable environments. We tested gene expression patterns and phenotypic plasticity in the Panamanian slender anole by a) measuring changes …

Imagined Communities: The Individual And The Nation In Aw's Map Of The Invisible World And Rushdie's Midnight's Children, Yu Chia Chang

College of Graduate Studies: Theses & Dissertations

This thesis focuses on the relationship between the individual and the nation in Tash Aw’s Map of the Invisible Worldand Salman Rushdie’s Midnight’s Children. Incorporated Benedict Anderson’s theory of “imagined communities” into the reading of both of the novels, this thesis discusses the limitation of nationalism and the imagination of individuals, aiming to show that it is the diversity of a nation that turns the stagnant imagined communities into fluid imagining communities.

Racial Differences In Factors Influencing Childhood Overweight And Obesity In The Us, Brendan C. Ibe

College of Graduate Studies: Theses & Dissertations

Background: Childhood overweight and obesity in the US has persisted as a serious public health concern despite efforts to address it. Children today are now estimated to live shorter life expectancy than their parents due to the consequences of childhood overweight and obesity. The earlier focus on healthy diets and an increase in physical activity have proved inadequate in reversing the trend. Using the social ecologic model (SEM), this study assessed the ecological and behavioral influences on childhood overweight and obesity among Non-Hispanic white, Non-Hispanic black, and Hispanic children. Methods: The study data were derived from the 2016 National Survey …

Assessing Public Health Workforce Informatics Competencies: A Study Of Three Health Departments In Metro Atlanta, Olatanwa Adewale

College of Graduate Studies: Theses & Dissertations

Background: There is a need for the public health workforce to be current and versatile in technology usage. Public health leveraging technology usage in service delivery has the potential to improve efficiency and bring it to the forefront in the provision of healthcare services. The purpose of this study was to assess public health workforce informatics competencies in select Atlanta health districts and determine the correlates of public health informatics proficiency.

Methods: A 10-item instrument adapted from the recommendations of a Working Group document by the Centers for Disease Control and Prevention and the 2015 Informatics Capacity and …

Nitroxide Human Serum Albumin Incorporated Nanoflowers With Dual Enzyme-Like Activities, Can Cai

College of Graduate Studies: Theses & Dissertations

In this work, nitroxide 2,2,6,6-tetramethylpiperdine 1-oxyl (Tempo), human serum albumin (HSA), CuSO₄ and phosphate buffered saline (PBS) were used to synthesis the hybrid nanoflowers. Scanning electron microscopy (SEM), electron paramagnetic resonance (EPR), and Fourier-transform infrared spectroscopy (FTIR) were used for characterization of the nanoflowers.The SEM spectra illustrated the morphologies of the hybrid nanoflowers. The FTIR spectra corroborated the presence of PNA in the hybrid nanoflowers, while the EPR spectra confirmed the intermolecular interaction of nitroxides bound to the human serum albumin incorporated into the nanoflowers. The catalase mimetic activity and corresponding kinetic parameters of nanoflowers were determined using the …

Smart Distributed Generation System Event Classification Using Recurrent Neural Network-Based Long Short-Term Memory, Shuva Das

College of Graduate Studies: Theses & Dissertations

High penetration of distributed generation (DG) sources into a decentralized power system causes several disturbances, making the monitoring and operation control of the system complicated. Moreover, because of being passive, modern DG systems are unable to detect and inform about these disturbances related to power quality in an intelligent approach. This paper proposed an intelligent and novel technique, capable of making real-time decisions on the occurrence of different DG events such as islanding, capacitor switching, unsymmetrical faults, load switching, and loss of parallel feeder and distinguishing these events from the normal mode of operation. This event classification technique was designed …

Association Rules Patterns Discovery From Mixed Data, Welendawa Acharige Charith A. Elson

College of Graduate Studies: Theses & Dissertations

Finding Association Rules has been a popular unsupervised learning technique for dis covering interesting patterns in commercial data for well over two decades. The method seeks groups of data attributes and their values where their probability density of these attributesattherespectivevaluesismaximized. Therearecurrentlywell-establishedmeth ods for tackling this problem for data with categorical (discrete) attributes. However, for the cases of data with continuous variables, the techniques are largely focusing on cate gorizing continuous variables into intervals of interest and then relying on the categorical data methods to address the problem. We address the problem of finding association rules patterns in mixed data by …

Perceptions Of Physical Activity Engagement Among African American Emerging Adults At Georgia Southern University - Statesboro Campus, Addison Mickens

College of Graduate Studies: Theses & Dissertations

Introduction: Physical Activity (PA) is critical to the health and well-being of African American emerging adults, ages 18-25. Research suggests that African American (AA) college students engage in less PA than other racial/ethnic groups. Few studies have examined the relationship between the collegiate built environment (CBE) impact on PA in this population. The Social Ecological Model (SEM) and the Social Cognitive Theory (SCT) were used to show how the environment facilitates influence on the behavior through physical and social factors affecting the behavior of engaging in PA. Methods: The purpose of this cross-sectional, concurrent multi-method study was to determine barriers …

Predicting Student Sustainability Knowledge, Attitudes, And Behaviors: Effects Of Demography, Environmental Science Education, And Sustainability Intervention Programs At Georgia Southern University, Bailey Chandler

College of Graduate Studies: Theses & Dissertations

This mixed-methods research approach assesses trends in sustainability knowledge, attitudes, and behaviors in the student population at Georgia Southern University (GS). Students completed a baseline survey in order to determine their knowledge and attitudes about sustainability and what sustainable behaviors they perform. A total of 1,328 useable responses to the baseline survey were gathered. Effects of race, academic class, gender, and prior completion of an environmental science course were tested, as well as the effect of campus (Statesboro and Armstrong). Previously taking an environmental science course and race/ethnicity were the two strongest indicators of knowledge score. Males scored higher than …

Rey-Ifying A New Heroine: Interrogating The Curriculum Of Femininity In Star Wars Films, Rebekah S. Morgan

College of Graduate Studies: Theses & Dissertations

The Star Wars film trilogies are a cross-generational phenomenon. Due to its powerful and pervasive nature, the messages within Star War’s films must be problematized. As a cultural artifact, Star Wars was used to explore the representations of women across time and three generations. Using a conceptual framework based on cultural curriculum studies and feminist theory, this study explored the significance of Star Wars as gender text by interrogating the representations of women in the Star Wars film saga and what these representations teach about gender and femininity. By focusing on the themes of agency, empowerment, and identity, this work …

The Effect Of Patient And Hospital-Level Factors On 30-Day Readmission After Initial Hospitalization Due To Stroke, Emmanuel Akowuah

College of Graduate Studies: Theses & Dissertations

Background: Hospital readmissions account for a large part of healthcare costs, especially among stroke patients. Readmission is common among disabled stroke survivors because they often suffer some neurological deficits, functional impairment, and other preexisting cardiovascular conditions. Although previous studies have explored the relationship between hospital readmissions after initial hospitalization due to stroke and a set of predictors using various analytical models, it often remains uncertain which predictors are most influential or essential. This study aimed to assess the effect of patient and hospital-levels factors on 30-day readmission after initial hospitalization due to stroke using the Anderson model of healthcare …

Artificial Neural Network Models For Pattern Discovery From Ecg Time Series, Mehakpreet Kaur

College of Graduate Studies: Theses & Dissertations

Artificial Neural Network (ANN) models have recently become de facto models for deep learning with a wide range of applications spanning from scientific fields such as computer vision, physics, biology, medicine to social life (suggesting preferred movies, shopping lists, etc.). Due to advancements in computer technology and the increased practice of Artificial Intelligence (AI) in medicine and biological research, ANNs have been extensively applied not only to provide quick information about diseases, but also to make diagnostics accurate and cost-effective. We propose an ANN-based model to analyze a patient's electrocardiogram (ECG) data and produce accurate diagnostics regarding possible heart diseases …

Reduced Dataset Neural Network Model For Manuscript Character Recognition, Mohammad Anwarul Islam

College of Graduate Studies: Theses & Dissertations

The automatic character recognition task has been of practical interest for a long time. Nowadays, there are well-established technologies and software to perform character recognition accurately from scanned documents. Although handwritten character recognition from the manuscript image is challenging, the advancement of modern machine learning techniques makes it astonishingly manageable. The problem of accurately recognizing handwritten character remains of high practical interest since a large number of manuscripts are currently not digitized, and hence inaccessible to the public. We create our repository of the datasets by cropping each letter image manually from the manuscript images. The availability of datasets is …

Predator-Based Selection And The Impact Of Edge Sympatry On Components Of Coralsnake Mimicry, Lauren E. Wilson

College of Graduate Studies: Theses & Dissertations

Studying warning coloration and mimicry is an effective way to understand predator-driven selection and phenotypic diversity. The presence (sympatry) or absence (allopatry) of a toxic model plays a role in shaping mimetic phenotypes. However, the impact of edge sympatry and allopatry on predation of mimetic phenotypes is not well understood. We studied coralsnake mimicry to test how edge sympatry and allopatry affect predation on mimetic phenotypes. Specifically, we tested 1) if overall attack rates varied with edge sympatry of coralsnakes 2) which color patterns conferred a fitness advantage 3) which specific mimetic signal components are important in driving predatory attacks …