Digital Commons Network^™

Benchmarking Oecd Countries’ Sustainable Development Performance: A Goal-Specific Pca Approach, Shyam Lamichhane

Master's Theses

In this thesis, the current status of the Organisation for Economic Co-operation and Development (OECD) countries’ sustainable development performance towards reaching the recently announced 2030 Agenda (17 UN Sustainable Development Goals (SDGs)) was investigated. Over 90 social, economic and environmental sustainability indicators were considered for the performance assessment of OECD countries towards reaching the targeted SDGs. The current weighted averaging approach used in the recent SDG Index and Dashboards Report was used as the benchmark and its limitations were discussed. To overcome the limitations, a novel Goal Specific Principal Component Analysis (GS-PCA) approach was proposed to create composite sustainability index …

A Partial, Age-Graded Examination Of Agnew’S General Theory Of Crime And Delinquency, Jessie Slepicka

Master's Theses

Previous examinations of Agnew’s (2005) general theory of crime and delinquency have garnered mixed results for the theoretical construct. These previous investigations have concentrated on a singular stage of an individual’s life—with analyses focusing on either the adolescent (Muftić, Grubb, Bouffard, & Maljević, 2014; Ngo & Paternoster, 2014; Roh & Marshall, 2018; Zhang, Day, & Cao, 2012) or the adult (Cochran, 2017; Ngo, Paternoster, Cullen, & Mackenzie, 2011) time juncture—failing to empirically assess the variability hypothesis centrally proposed by Agnew. Using data from a nationally representative sample of participants—the National Longitudinal Study of Adolescent to Adult Health [n = 20,745 …

The Impact Of Shod Versus Unshod Walking On Center Of Pressure Variability, Zachary Barrons

Master's Theses

The purpose of the present investigation was to examine the influence of footwear on walking stability. Twenty healthy women walked at 1.3 m/s on an instrumented treadmill. One hundred steps (50-right, 50-left) were analyzed from two walking conditions (shod, unshod). The variability of the center of pressure (COP) for each step was calculated for quadrants of the contact period. Significant differences in variability were seen between shod and unshod conditions in all quadrants as well as differences between left and right feet in quadrants one and four. Restricted foot motion while shod may explain the differences seen in COP variability. …

Comparative Thermal Ecology Of Coastal And Inland Pacific Rattlesnakes (Crotalus Oreganus), Hayley Layne Crowell

Master's Theses

Global biodiversity is declining as a direct result of anthropogenic climate change. Ectothermic species have become focal organisms for studying the ecological effects of altered climates due to the clear relationship between environmental temperatures and ectotherms’ basic physiological functions. Historically, examinations of these effects have focused heavily on heliothermic lizards, and most others have tended to focus on single populations or sympatric species within a single community. Addressing the longterm energetic implications of environmental temperature variation will provide valuable insight into the cascading physiological effects that certain populations or species may experience as a result of altered climates.

In this …

Magnetic Minerals Of The Lower Poleslide Member Of The Brule Formation, Badlands National Park, Rebecca V. Kipf

Master's Theses

The White River Group in Badlands National Park is significant because it contains abundant mammal fossils. Many of these fossils are unique to the Great Plains and one of the major challenges has been to learn where these fossils fit in the geologic global time scale. Paleomagnetic studies have been instrumental in correlating and dating these faunas. The purpose of this study is to look at the specific magnetic mineralogy for a complete stratigraphic column of the lower Poleslide Member of the Brule Formation at Cedar Pass. This study attempts to determine what minerals provide the paleomagnetic remanence in these …

Exploring The Influence Of School-Based Sexuality Education Settings On Lgbtq+ Sexual Identity Development, Lauren Marie Guyer

Master's Theses

Previous research on sexual identity development demonstrates that there are five discernible, non-linear statuses in which individuals may pass through as they develop their sexual identity: compulsory heterosexuality, active exploration, diffusion, deepening and commitment, and synthesis (Dillon, Worthington, and Moradi 2011). Moreover, prior research on school-based sexuality education (SBSE) demonstrates that no matter its formal designation or political perspective, SBSE is exclusionary, inadequate, and habitually reproduces social inequalities (Bay-Cheng 2003; Elia and Eliason 2010b). SBSE programs within the United States are insufficient because they unvaryingly promote a heteronormative discourse and do not address the sexual health needs or experiences of …

First Thirty Days Of Life: Examining Calf Behavioral Development In Beluga Whales (Delphinapterus Leucas) And Pacific White-Sided Dolphins (Lagenorhyncus Obliquidens) At One Zoological Facility, Kendal Smith

Master's Theses

Cetacean development is important for general comparative understanding and the implementation of informed husbandry policies. Due to the inaccessibility of many of these species in the wild, researchers can study managed care populations to better understand basic developmental patterns of cetaceans, as well as to improve husbandry policies for facility animals. However, no previous studies have attempted to observe the behavioral development of Pacific white-sided dolphins (Lagenorhyncus obliquidens). Eight beluga whale calves and four Pacific white-sided dolphin calves were observed for the first 30 days of life to determine the developmental trajectory of several typically monitored behaviors. The …

Evaluating Alternate Management Strategies For Spotted Seatrout (Cynoscion Nebulosus) In The North-Central Gulf Of Mexico, Nathaniel Wallace Jermain

Master's Theses

Spotted Seatrout (Cynoscion nebulosus) receive considerable fishing pressure as the most popular saltwater target species in the north-central Gulf of Mexico. The potential for alternate management strategies, including stock enhancement and reducing discard mortality, to support the sustainability of the stocks and the desires of stakeholders is unknown. The purpose of this study was to provide an objective evaluation of the efficacy of alternate management strategies for Spotted Seatrout in Louisiana, Mississippi, and Alabama. I used a management strategy evaluation (MSE) to measure the performance of 18 alternate management scenarios relative to control scenarios. Scenarios with a high …

A Comparison Of Social Learning In Domestic Canines, Beatrice Chenkin

Master's Theses

Domestic canines (Canis familiaris) provide a unique insight into the processes by which species can grow to cooperate efficiently with humans. Few studies have compared whether their behavior is more affected by humans or other canines. This study uses a two-action feeder (an apparatus that can be opened in one of two ways) to look into the methods of social learning they use and compares how they learn from humans vs. other canines. Sixty-four dogs from the Humane Society of varying backgrounds, ages, sexes, and reproductive statuses were tested on their ability to open the two-action feeder and the amount …

Geographical Analysis Of Offender Vulnerability: Modeling Coastal Hazards And Social Disorganization In Southern Mississippi, Ashleigh Nicole Price

Master's Theses

Hazards research continually examines how specific groups are affected by damaging events and how their unique sociodemographic characteristics contribute to variations in resilience and recovery. Studies have shown that underprivileged communities suffer more adversely and take longer to recover from hazard events. Probationers and parolees are uniquely disadvantaged regarding demographics and economic opportunity, both of which contribute to increased vulnerability and reduced resilience. Numerous legal restrictions and widespread discrimination towards former criminals means offenders are often relegated to underserved, criminogenic neighborhoods. Given such severe social and financial limitations, offenders have little capacity to prepare for or recover from disasters.

The …

Posture Affects Affordance Perception Of Reachability In Virtual Reality, Hannah Masoner

Master's Theses

Tasks such as standing and reaching require differing levels of postural stability. Postural equilibrium is necessary to perceive the location of objects (Lee, Pacheco, & Newell, 2018). Visual perception of whether an object is within reach was investigated while standing upright. Participants viewed a 3D virtual reality (VR) environment with a stimulus object (red ball) placed at different egocentric distances. Participants made affordance judgements while in a standard stance condition as well as two separate active balance conditions (yoga tree pose, and toe-to-heel pose). Feedback on accuracy was not provided, and participants were not allowed to attempt to reach. Response …

Gogo: An Improved Algorithm To Measure The Semantic Similarity Between Gene Ontology Terms, Chenguang Zhao

Master's Theses

Measuring the semantic similarity between Gene Ontology (GO) terms is an essential step in functional bioinformatics research. We implemented a software named GOGO for calculating the semantic similarity between GO terms. GOGO has the advantages of both information-content-based and hybrid methods, such as Resnik’s and Wang’s methods. Moreover, GOGO is relatively fast and does not need to calculate information content (IC) from a large gene annotation corpus but still has the advantage of using IC. This is achieved by considering the number of children nodes in the GO directed acyclic graphs when calculating the semantic contribution of an ancestor node …

Investigating Diel Periodicity In Export Flux In The Gulf Of Mexico Using A Particulate Imaging System, Justin Edward Blancher

Master's Theses

To estimate the diurnal periodicity in the biological pump, a floating array with a marine snow camera system at 150 m depth was used, and particles were imaged at a 40 second interval for a 24 to 30 hour period at five sites in the Gulf of Mexico in June 2017. Each image was processed to identify and size all the particles within the frame, which was then processed to determine diameter, an estimated volume, and settling speed for each particle. Using these parameters, particle mass was estimated using algebraically rearranged calculations for settling speed. Each hour during the deployment …

Soldaten Des Westens: An Analysis Of The Wartime Experiences Of Three German-American Regiments From The St. Louis-Bellville Region, John Sarvela

Master's Theses

During the Civil War, Germans from the Greater St. Louis region enthusiastically volunteered for service in the Union Army and filled the companies of three regiments examined here: the 30^th and 43^rd Illinois and 12^th Missouri Volunteer Infantry Regiments. This thesis argues that German-American soldiers serving in these regiments joined the army to save the Union and end slavery. Once mustered into service, they experienced less nativism within the Union Army of the Tennessee than Germans in the Union Army of the Potomac. In contrast to the predominantly German 43^rd Illinois and 12^th Missouri, the …

Organized Chaos: Daily Routines As A Potential Mechanism Linking Household Chaos And Child Behavior Problems, Kristy L. Larsen

Master's Theses

Children living in chaotic households exhibit more externalizing behaviors. Child externalizing behavior, exhibited as early as the toddler and preschool years, is a risk factor for later maladjustment. Understanding the mechanisms linking household chaos to early externalizing behaviors is important since those mechanisms could be targeted as a point of intervention. The primary aim of this study was to examine daily routines as a potential mediator of the relation between household chaos and both child externalizing behavior and bedtime resistant behavior. A secondary aim was to examine different levels of routines (family routines, general daily child routines, and specific bedtime …

Exploring The Moderating Effects Of Aggression On The Relationship Between Negative Urgency And Suicidal Desire, Rachel L. Martin

Master's Theses

Suicide is a health concern with 44,965 deaths in 2016. Typical assessment of risk factors relies on self-report, which can be susceptible to underreporting. As such, non-face valid measures and innovative assessment approaches such as implicit association tests may help identify risk factors by eliminating conscious underreporting. The Interpersonal-Psychological Theory of Suicidal Behavior is an empirically supported theory hypothesizing why individuals die by suicide. The theory comprises three elements: thwarted belongingness, perceived burdensomeness, and capability for suicide. Thwarted belongingness and perceived burdensomeness have been found to be non-face valid measures and less susceptible to conscious underreporting. Objective measures, such as …

The Effects Of Salinity On Zootechnical Performance Of Spotted Seatrout (Cynoscion Nebulosus) In Recirculating Aquaculture Systems, Eric Gigli

Master's Theses

The spotted seatrout (Cynoscion nebulosus) is a euryhaline finfish candidate for marine aquaculture in the northern Gulf of Mexico. Aquaculture of this species currently uses salinities of 25 psu or greater making production challenging in areas where high salinity water is not available. This study aimed to document the effects of salinity on zootechnical performance of spotted seatrout embryos, early larvae, and juveniles in recirculating aquaculture systems to assist with the development of protocols for low salinity culture.

Embryos obtained from a volitional spawn at 29 psu were incubated at three salinities (12.5, 18.75, or 25 psu) until …

Hope For Struggling School Districts, Mary D. Travis

Master's Theses

Education improves the opportunities and life-chance outcomes of our children, and is a key factory in both economic and community development. Although high school graduation rates have shown improvement nationwide in recent years, public education is suffering from increasing inequality between different school districts and within the same school districts. Such inequalities widen academic outcome gaps and can result in entire school districts being branded as academic failures. However, there is also encouraging evidence of struggling schools and school districts moving toward improvement. Innovative leaders who are committed to inclusive and rigorous academics, shared leadership, and an in-depth understanding of …

A Machine Learning Approach To Network Intrusion Detection System Using K Nearest Neighbor And Random Forest, Ilemona S. Atawodi

Master's Theses

The evolving area of cybersecurity presents a dynamic battlefield for cyber criminals and security experts. Intrusions have now become a major concern in the cyberspace. Different methods are employed in tackling these threats, but there has been a need now more than ever to updating the traditional methods from rudimentary approaches such as manually updated blacklists and whitelists. Another method involves manually creating rules, this is usually one of the most common methods to date.

A lot of similar research that involves incorporating machine learning and artificial intelligence into both host and network-based intrusion systems recently. Doing this originally presented …

The Road To Recovery: Injured Athlete's Perspectives On Recovery Through Social Support, Brooke Kuhn

Master's Theses

Injured athletes’ perspectives on different aspect of their recovery process were analyzed using concepts such as social support, responsiveness, and self-disclosure based on three different sources: coaches, trainers, and teammates. 39 participants were used for this study. With an age range from 18-44 years old, the participants are both current college and former college athletes. Many of them ranged from the different types of sports played and at different divisional levels. 82.1% of participants were Caucasian, 12.8% were African American, and 5.1% selected other as their ethnicity. The results exemplify, through linear regression, that trainers are the most effective source …

Predicting College Students' Career Interests To Be A Police Investigator Rather Than A Patrol Officer, Alyssa Viator

Master's Theses

In the field of criminal justice, much research has been dedicated to investigating policing in the 21^stcentury. However, there is a lack of research regarding predictions of career preference among college students, more specifically, millennials. This study was designed to fill that gap in the literature by examining interests in police patrol careers. The methodology involved included multiple regression as a way to potentially predict career preference for a police investigator rather than a patrol officer. The results provided promising results for the overall understanding of career preference for millennials. This study also provided crucial discussions for policy …

A Framework To Analyze Energy Efficiency Of Multi-Band Spectrum Sensing Algorithms, Jay Bhadresh Patel

Master's Theses

Cognitive radio (CR) is a device which can detect wireless communication channels that are not in use and adapt its parameters intelligently. Networks with CRs use the available frequency bands much more efficiently and hence have higher data rates compare to traditional radios. Spectrum sensing is the class of techniques used by CRs to understand its wireless environment. Recent research on evaluating multi-band spectrum sensing algorithms is limited to only algorithm complexity and optimization; therefore, the primary goal of the study is to devise a novel framework that analyzes a multi-band spectrum sensing algorithm in terms of energy consumption and …

Exploring The Gamification Paradox: Why Does Improved Engagement Not Lead To Improved Performance?, Katarzyna Maria Sliwinska

Master's Theses

Gamification is the application of game elements to non-game environments (Deterding, 2012), and is often used to engage people and make their experiences more enjoyable in areas ranging from fitness and education to psychological research. Previous studies have shown that adding gamification to new environments can result in increased motivation (Hamari, Koivisto, & Sarsa, 2014). However, increased motivation from gamification does not seem to increase performance in terms of accuracy or response times (Hawkins et al., 2013). This research study examined this “gamification paradox” by testing the performance of 87 participants on a visual search task both with and without …

Pedagogies Of Play: An Ethnographic Analysis Of Activity-Based Learning In Two Elementary Classrooms, Chelsea Lynn Halliwell

Master's Theses

In this document I discuss the relationship between education standards for curriculum and structured play in the elementary classroom. I discuss the various forms of teacher-initiated structured play, and student-initiated informal play and resistance strategies - through participant observation, digital analysis, spatial analysis, semi-structured ethnographic interviews, and unstructured conversations - to understand the full range of learning strategies in elementary classroom settings. I analyze how these strategies relate to curricular standards, or how they might deviate from or transform those standards, which are partially shaped by federal and state education policy. I also outline and develop two hypotheses in an …

The Life History Of The Southern Lanternshark, Etmopterus Granulosus, From The Southwestern Indian Ocean, Melissa Nehmens

Master's Theses

The Southern Lanternshark, Etmopterus granulosus, is a deep-sea shark that associates with seamounts and ridges between 220-1500 m throughout the southern oceans. Though not a targeted species, it is frequently incidentally caught in several fisheries, and comprises the highest amount of bycatch by number in the Orange Roughy (Hoplostethus atlanticus) fishery in the Southwestern Indian Ocean. Despite how frequently this species is encountered, surprisingly little is known about it beyond basic biology. The lack of life history information is partially attributed to the difficulty in obtaining samples and is compounded by a lack of methods to appropriately assess traditional life …

On-Demand Label Production, Robert A. Zimmerman

Master's Theses

The production and approval process for the various labels used in clinical trials wastes significant time and resources through the need to outsource label production or rely on large reams of pre-cut label stock for each revision throughout the process. An in-house, on-demand label printing and cutting system is a potential remedy to this waste. Previous work by Cheadle et al. resulted in a functional electomechanical prototype of the label cutting aspect of this research, capable of rudimentary linear cuts. In this continued research, emphasis was placed on improved label cutting capabilities and creating PC control software for label design. …

Comparison Of Lqr And Lqr-Mrac For Linear Tractor-Trailer Model, Kevin Richard Gasik

Master's Theses

The United States trucking industry is immense. Employing over three million drivers and traveling to every city in the country. Semi-Trucks travel millions of miles each week and encompass roads that civilians travel on. These vehicles should be safe and allow efficient travel for all. Autonomous vehicles have been discussed in controls for many decades. Now fleets of autonomous vehicles are beginning their integration into society. The ability to create an autonomous system requires domain and system specific knowledge. Approaches to implement a fully autonomous vehicle have been developed using different techniques in control systems such as Kalman Filters, Neural …

Creating A Cultural Context For Dong And Miao Folk Music Using An Orff-Inspired Methodology, Ke Guo

Master's Theses

As children grow up surrounded by various ethnicities, races, and religious beliefs, we teach them music and dance to cultivate respect and empathy for the diverse people in our multicultural society. On the other side of the globe, China is also a multi-ethnic country and is home to 56 ethnic minority groups that speak multiple different languages. “Chinese music” is thus a collective term for the many disparate styles and genres of music in the country, which is especially rich in the varieties of folk music heard and played. Although Chinese folk music frequently appears in music textbooks in elementary …

Green Stormwater Infrastructure Assessments In Santa Clara County, Ca: An In-Situ Analysis Of Select Bioretention Projects, Laura Bates

Master's Theses

Stormwater runoff, defined as rainwater that flows over impervious surfaces, is both an under-harnessed groundwater resource and the leading contributor to water body impairments due to the number of pollutants it can transport. One widely successful strategy to capture and treat stormwater runoff is to implement Green Stormwater Infrastructure (GSI): engineered green spaces to enhance the overall environmental quality of an urban landscape. GSI projects, particularly bioretention systems, capture and treat stormwater runoff through infiltration and plant absorption before it reaches receiving bodies of water. In order to operate efficiently, GSI systems require specific maintenance procedures. The purpose of this …

Avocado Root Rot: Steep, Rocky Terrain And Biodiversity Help Protect Small Farmers In Post-Conflict Colombia, Morgan Frankel

Master's Theses

In recent years, small avocado producers in coastal Colombia returned to their farms after decades of war to discover they must battle the pathogen Phytophthora cinnamomi devastating their trees. While this disease is well-described in the U.S., Australia, and Europe, no previous research has examined environmental correlates of P. cinnamomi in avocado in the diverse tropical agroecosystem of the Colombian Montes de Maria. I used agroecosystem inventory, in-field diagnostics, and disease observations to describe avocado agroecosystem diversity and identify relationships among P. cinnamomi presence, root rot disease, slope, pH, soil compaction, elevation, and distance to the household in remote smallholder …