Digital Commons Network^™

Using Long-Short-Term-Memory Recurrent Neural Networks To Predict Aviation Engine Vibrations, Abdelrahman Elsaid

Theses and Dissertations

This thesis examines building viable Recurrent Neural Networks (RNN) using Long Short Term Memory (LSTM) neurons to predict aircraft engine vibrations. The different networks are trained on a large database of flight data records obtained from an airline containing flights that suffered from excessive vibration. RNNs can provide a more generalizable and robust method for prediction over analytical calculations of engine vibration, as analytical calculations must be solved iteratively based on specific empirical engine parameters, and this database contains multiple types of engines. Further, LSTM RNNs provide a “memory” of the contribution of previous time series data which can further …

Cntf Potentiates Survival And Sprouting Of Axotomized Magnocellular Neurons, Kathryn E. Erickson

Theses and Dissertations

Ciliary neurotrophic factor (CNTF) is believed to promote neuronal sprouting and survival within the magnocellular neurosecretory system (MNS) by means of astrocyte activation following injury. When CNTF binds to its receptor complex, CNTF receptor alpha, located on the extracellular surface of the astrocyte, it initiates the Jak/STAT3 pathway. The activation of this pathway and the translocation of phosphorylated STAT3 (pSTAT3) to the nucleus is believed to lead to the release of multiple factors that act in a paracrine manner to influence survival and sprouting of MNS neurons. To confirm the ability of CNTF to activate the astrocyte, the three receptor …

Bicycle Transit And The Journey To Work: An Exploration Of Bicycle Accessiblity In 10 Large U.S. Cities, Brandon Lee Andreasen

Theses and Dissertations

This thesis examines the access to bicycle infrastructure from home locations and the locations of employment opportunities. The accessibility of bicycle infrastructure to employment is calculated using distance thresholds of 1, 3, 5, 7, and 9 kilometers and compared using the road network, all bicycle infrastructure, and only bicycle paths for 10 United States cities. Findings indicate that on average, 71 percent of jobs in a city have access to bicycle infrastructure, which is found to be statistically significant at the 0.05 level in relation to the bicycle commute mode share, as opposed to 66 percent of residents which was …

The Protective Roles Of Primary And Secondary Control Strategies Among Familial Caregivers Of Older Adults With Dementia, Nicole Haverstock

Theses and Dissertations

Caring for an older family member with dementia can be extremely stressful, often resulting in diminished psychological health. Prior research has shown that a strong sense of control protects well-being during stressful times. Therefore, greater perceived control may serve to buffer the effects of stress on familial caregivers’ psychological health. According to control theorists (Heckhausen & Schulz, 1995; Rothbaum, Weisz, & Snyder, 1982), a general sense of control is maintained through a dual process involving direct attempts to change the environment (i.e., primary control strategies) and attempts to inwardly adjust cognitions to align with the environment (i.e., secondary control strategies). …

The Relationship Between Experiential Avoidance, Eating Expectancies, And Eating Psychopathology In University Students; A Preliminary Test Of An Adaption Of The Ap Model Of Eating Disorder Risk, Nicole Marie Della Longa

Theses and Dissertations

Avoiding unpleasant internal experiences may be associated with eating disorder symptomatology, and college students may be especially at risk. However, the process through which the avoidance of uncomfortable experiences relates to eating psychopathology is unknown. By evaluating experiential avoidance and learned expectancies of eating outcomes, the present study investigated the potential mechanism through which maladaptive avoidant strategies relate to eating psychopathology. Participants included 244 undergraduate students enrolled in psychology courses from a Midwestern university. The participants completed a battery of questionnaires through an online research system managed by the university. Preacher and Hayes’s (2008) bootstrapping method of mediation and structural …

Microcalcifications Detection Using Image And Signal Processing Techniques For Early Detection Of Breast Cancer, Md Shafiul Islam

Theses and Dissertations

Breast cancer has transformed into a severe health problem around the world. Early diagnosis is an important factor to survive this disease. The earliest detection signs of potential breast cancer that is distinguishable by current screening techniques are the presence of microcalcifications (MCs). MCs are small crystals of calcium apatite and their normal size ranges from 0.1mm to 0.5mm single crystals to groups up to a few centimeters in diameter. They are the first indication of breast cancer in more than 40% of all breast cancer cases, making their diagnosis critical. This dissertation proposes several segmentation techniques for detecting and …

School Experiences Of Middle School Adolescents With Autism Spectrum Disorder, Shannon D. Grave

Theses and Dissertations

This phenomenological study examined the school experiences of adolescents with high functioning Autism Spectrum Disorder (ASD) in sixth through eighth grade. Two research questions guided this study: what were the participants’ day to day experiences and what were their perceptions of those experiences? The results of the study yielded three conclusions. First, school can be a confusing and unpredictable source of stress. This stress can be ameliorated through increased predictability in the classroom and through adaptations to materials based on individualized needs and preferences. Specific classroom based strategies were identified and discussed, with clear shared preferences emergent. Participants indicated preferences …

Concealing Stigmatized Sexual Orientation, Accepting Versus Non-Accepting Attitudes, And Ego Depletion, Nicole Gigi Giordano

Theses and Dissertations

The current study was designed with the aim of increasing the understanding of

how concealing or disclosing a stigmatized sexual identity to a perceived accepting/non- accepting person affects ego depletion. Ego Depletion, (Baumeister, 1998) refers to the idea that certain tasks exhaust a limited pool of cognitive resources. Previous literature has explored how concealing a stigmatized identity is ego depleting; however, an examination of the relationship between ego depletion and the concealment of the specific identity as a sexual minority has not yet been explored. LGBQ individuals are often faced with the challenge of navigating social situations to determine if …

Anomie In The Oil Patch? An Examination Of Durkheim’S Anomie Theory Through A Case Study Of The Bakken Region, Fred Matthew Jones

Theses and Dissertations

Emile Durkheim serves as one of the seminal contributors to the field of sociology; his contributions to criminology are numerous as well. Many authors consider Durkheim’s concept of anomie to be his most important contribution to the field of criminology (Lunden, 1972). Durkheim’s anomie theory has been subject to extensive empirical examination, these efforts have resulted in disparate findings. Graeff and Mehlkop (2007) insist this lack of coherence is due to improper operationalization of Durkheim’s anomie by some researchers. In particular, it is the utilization of cross sectional data in these previous studies which contributes to these disparate results. The …

The Development Of Hostile Cognitive Schemas And Adult Aggressive Tendencies, Kristin Elisabeth Matson

Theses and Dissertations

This dissertation research served as an exploration into the relationships between childhood maltreatment, personality factors (i.e. negative affect and antagonism), cognitive biases (i.e. hostile attribution bias and hypermasculinity), adult aggression, and gun enthusiasm. Previous literature has shown relationships between these variables individually and this research attempted to provide more insight into the complicated interplay between numerous factors often present in the life of an aggressive adult. The participants included 885 men over the age of 18 and residing in the United States who were recruited through Amazon Mechanical Turk survey service to complete eight assessments online. Results indicated aggressive ideation …

A Hydrometeorological And Geospatial Analysis Of Precipitation Within The Glacial Ridge Wildlife Refuge Using The R2ain-Gis Tool, William John Mokry

Theses and Dissertations

Weather radar (radio detection and ranging) is a specialized meteorological tool used to sample and track meteorological objects. This tool is critical for meteorologists and public decision-makers to inform and provide for their constituents in a timely manner, often with the protection of lives and property on the line. With the application of using meteorological and geospatial data in the realm of geographic information systems (G.I.S.), the task of blending the two sciences to inhibit further research and dissemination of information occurs.

This study focuses on the creation and implementation of a new geospatial tool, the Radar and Rainfall Analyzed …

Executive Functioning And Drinking: The Impact Taxing Working Memory Has On Alcohol Consumption, Mara Catherine Norton-Baker

Theses and Dissertations

The prevalence rates of binge drinking and heavy drinking among college-aged students have reached alarming levels. The negative consequences for these behaviors range from relatively minor annoyances (e.g., hangovers) to life-changing incidents (e.g., DUI) to accidental death. Deficits in executive cognitive function (ECF), especially deficits in working memory capabilities, have been linked repeatedly to problematic alcohol use. Given that it appears problematic drinkers with ECF deficits are more susceptible to the effects of alcohol and experience a greater loss of behavior control when experiencing cognitively taxing situations than problematic drinkers with greater ECF, further study of the impact of taxing …

New Mothers' Perceptions Of Breastfeeding, The Transition To Parenthood, And The Partner Alliance: A Grounded Theory Study, Jennifer Amy Munch

Theses and Dissertations

The purpose of this study was to examine first-time mothers’ perceptions of the interaction between their partner relationship, transition to parenthood, and breastfeeding. The study utilized the qualitative method of constructivist grounded theory (CGT) to achieve these means. Participants included eight primiparous and cohabiting and partnered mothers. Each participant was between 3 to 8 months postpartum when they completed a semi-structured 1.5 to 2 hour phone interview. They were asked questions related to their experiences with becoming new parents and breastfeeding, including changes, challenges, and overcoming barriers. They were also asked to share their views and feelings related to their …

Improving Forecasts Of Winter Storm Tracks Using A Local Ensemble, Brittany A. Peterson

Theses and Dissertations

Winter storms can affect millions of people, with impacts such as disruptions to transportation, hazards to human health, reduction in retail sales, and structural damage. Blizzard forecasts for Alberta Clippers can be a particular challenge in the Northern Plains, as these systems typically depart from the Canadian Rockies, intensify, and impact the Northern Plains all within 24 hours. The purpose of this study is to determine whether probabilistic forecasts derived from a local physics-based ensemble can improve specific aspects of winter storm forecasts for three Alberta Clipper cases.

Verification is performed on the ensemble members and ensemble mean with a …

Britain's First War With Kandy: Landscape, Violence, And Conquest In Colonial Sri Lanka, Elizabeth Anne Mjelde

Theses and Dissertations

Accounts of travel to Sri Lanka published during the period of British conquest (1796 through 1818) reveal a consistent yet problematic tendency: despite ongoing military conflict, visual artists constructed representations of the island as a peaceful and orderly place. The contradiction is heightened when travelers’ uniformly tranquil images of Sri Lanka are juxtaposed with documented acts of destruction to land and property, undertaken by troops during Britain’s first war with the inland kingdom of Kandy, a conflict which eventually led to the island’s complete colonization. The present study reconciles this contradiction through analysis of publications by each of five artists …

Teacher Referral Following Natural Disasters, Melissa Anne Quincer

Theses and Dissertations

Previous research has shown that teachers are common referral points for children

experiencing mental health difficulties. This is especially true in rural communities and a

major time of intervention has been following natural disasters, when there are not

enough mental health services in an area, or they are too taxed. This study sought to

explore teachers’ referral habits and determine if there is any difference when rural

challenges are present or if the teacher has previously experienced a disaster. To this end,

teachers were recruited, presented with vignettes that either contained rural challenges or

did not contain rural challenges and …

Not Your Business: Pedagogical Lessons Of Activist Resistance To Neoliberalism In Canadian Higher Education, Jorunn Thordarson

Theses and Dissertations

The growing power and permeation of neoliberal ideology across all facets of social life has been instrumental in promoting and orchestrating a shift among Canadian post-secondary institutions towards a reductive view of schooling at the expense of a more liberatory vision of education. The aim of this study was to examine the connections between power, education, and democracy in relation to the neoliberal restructuring of higher education in Canada, while simultaneously exploring discourses of resistance to neoliberal hegemony. Using critical discourse analysis, this study begins by establishing the promotion and naturalization of neoliberal ideology within the policy landscape of Canadian …

A Morphological Approach To Identify Respiratory Phases Of Seismocardiogram, Nasim Taghizadeh Alamdari

Theses and Dissertations

Respiration affects the cardiovascular system significantly and the morphology of signals relevant to the heart changes with respiration. Such changes have been used to extract respiration signal from electrocardiogram (ECG). It is also shown that accelerometers placed on the body can be used to extract respiration signals. It has been demonstrated that the signal morphology for seismocardiogram, the lower frequency band of chest accelerations, is different between inhale and exhale. For instance, systolic time intervals (STI), which provide a quantitative estimation of left ventricular performance, vary between inhale and exhale phases. In other words, heart beats happening in exhale phase …

A Dual-Level Approach To Enrollment Management, Jason Trainer

Theses and Dissertations

Increasing institutional dependency on tuition revenue paired with rising political pressures towards student success outcomes has many institutions turning to enrollment management (EM) to improve their institution’s enrollment outcomes. EM is a comprehensive and inclusive process focused on achieving the optimum recruitment, retention, and graduation institutional outcomes. The academic community remains at the epicenter of this EM process. Chief enrollment officers failing to create an institutional partnership with the academic community will unlikely attain desired enrollment outcomes.

This study seeks to assist institutions by assessing how a “shared sense of responsibility” for enrollment outcomes is developed through the eyes of …

Examining Multiple Methods Of Analysis To Guide The Development Of A Postsecondary Institution Rating System, Eddie Gene Walker Ii

Theses and Dissertations

Rankings of higher education institutions have been developed as a method for evaluating universities and colleges as the competition for students, faculty, and financial support grew stronger (Shin & Toutkoushian, 2011). Historically these rankings relied mostly upon institutional reputation, but recently there has been a call for quantifiable data. US President Obama (2013) discussed the need for a postsecondary institution ratings system that holds universities accountable to provide accurate information related to accessibility, affordability, and educational outcomes. Once a method of rating institutions is developed, the ratings can be utilized to rank similar institutions, which results in a ranking system …

The Effects Of Resistance Training Programs On Physical Self-Perceptions In College Females, Kelsey Lauren Zachman

Theses and Dissertations

The effects of resistance training on females’ self-perception. Introduction: It is generally accepted that exercise enhances physical self-perceptions, but the impact of resistance training programs on females’ self-perceptions is unclear. Because exercise is an important public health behavior, and because physical self-perceptions have motivational implications, this study has potential to add knowledge that is relevant to exercise promotion. Purpose: The primary aim of the study was to explore the effect of two different types of resistance training programs on physical self-perceptions of college age females. Methods: Participants (n=30) were randomized to muscular strength, muscular endurance resistance training groups or a …

Differential Executive Functioning, Impulsivity, And Motivation In Adulthood As A Function Of Experienced Child Abuse, Christopher Anton Mark

Theses and Dissertations

Introduction: While child abuse can only occur before the ages 18, there are long term neurological repercussions that can cause severe detriment to the abused individual. More specifically, normative neurological development during childhood is impeded upon, thus resulting in cognitive and emotional abnormalities in adulthood. Methods: The present study recruited 43 students from the University of North Dakota (Females = 23) with an age range of 18-23 years of age (M = 19.6 years, SD = 1.545). The participants were administered several prescreening measures, including a measure of physical child abuse, emotional child abuse, and sexual child abuse. Based on …

Abortion And Birth Control—United States Supreme Court Declares Texas’ Restrictions On Abortion Facilities Unconstitutional: Impact On States With Similar Abortion Restrictions Whole Women’S Health V. Hellerstedt, 136 S. Ct. 2292 (2016), Dennis Pathroff

North Dakota Law Review

No abstract provided.

Constitutional Law—The Reaffirmation Of The Lack Of Sixth Amendment Protections For Indigent Native American Defendants In Tribal Court Proceedings United States V. Bryant, 136 S. Ct. 1954 (2016), Allyssa Wall

North Dakota Law Review

No abstract provided.

Civil Rights—Morbid Obesity As A Disability Under The Ada Morriss V. Bnsf Ry. Co., 817 F.3d 1104 (8th Cir. 2016), Mary Batcheller

North Dakota Law Review

No abstract provided.

A Tribute To Justice Antonin Scalia, Michael S. Mcginniss

North Dakota Law Review

No abstract provided.

Technology Competence: The New Ethical Mandate For North Dakota Lawyers And The Practice Of Law, Tracy Vigness Kolb

North Dakota Law Review

No abstract provided.

Variation Of Occludin Expression In As3+ And Cd 2+-Transformed Urotsa Cells And Corresponding Putative Cancer Stem Cells, Kaylee Scott

Undergraduate Theses and Senior Projects

No abstract provided.

Inequality In North Dakota : An Investigation, Colin Mummery

Undergraduate Theses and Senior Projects

No abstract provided.

Characterizing The Response Of Primary Human Microglia To The Lyme Disease Causing Bacteria, Borrelia Burgdorferi, Jacob Greenmyer

Undergraduate Theses and Senior Projects

No abstract provided.