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The Effects Of A Reduced Force Aerial Bucket Control On Upper Extremity Muscular Demands As Assessed With Surface Electromyography, Casey D. Garces Oct 2017

The Effects Of A Reduced Force Aerial Bucket Control On Upper Extremity Muscular Demands As Assessed With Surface Electromyography, Casey D. Garces

Master's Theses (2009 -)

A common control for operating aerial bucket trucks for utility companies in North America is called a pistol grip control. Based upon many anecdotal reports of forearm muscle fatigue from workers using this control, Prof. Richard Marklin began an EPRI-sponsored study in 2016 using EMG to determine muscle fatigue of workers while they used the pistol grip. Muscle activity recorded by EMG is a measure of the magnitude of muscle force under controlled conditions. This study confirmed the reports of muscle fatigue in extensor digitorum communis (EDC) muscle in the right forearm. The next phase of the study was to …


The Mediating Effects Of Positive Thinking And Social Support On Suicide Resilience Among Undergraduate Students, Denise Marie Matel-Anderson Oct 2017

The Mediating Effects Of Positive Thinking And Social Support On Suicide Resilience Among Undergraduate Students, Denise Marie Matel-Anderson

Dissertations (1934 -)

Suicide has been the 2nd leading cause of death for 18-24-year-olds in the US since 2011. The stress experienced by undergraduate college students has the potential to increase ones’ risk for suicide. Resilience theory was used as a theoretical framework to examine the interplay between risk and protective factors. A cross-sectional and correlational design was used to assess the mediating effects of positive thinking and/or social support on suicide resilience in 131 college students 18-24 years old who completed an online survey. An indirect effect of self-esteem on suicide resilience was found through positive thinking and social support indicating that …


Motivational And Intervention Systems And Monitoring With Mhealth Tools, Golam Mushih Tanimul Ahsan Oct 2017

Motivational And Intervention Systems And Monitoring With Mhealth Tools, Golam Mushih Tanimul Ahsan

Dissertations (1934 -)

Use of mobile and telecommunication technologies has become widespread in the last decade. With this development, use of mobile devices in healthcare (mHealth) is also increasing. Mobile phones, smartphones, and other mobile devices are affordable tools for different health-related services. In my research, with my research team, I have helped to develop several mHealth tools to address the quality of life of cancer survivors, cancer patients, and individuals at increased risk for cancer. Tobacco smoking is the major cause of several types of often-fatal cancers and cardio-respiratory diseases. Optimally, we hypothesize that the most effective mHealth tools should be customized …


Muscle Coordination Contributes To Function After Stroke; Proprioception Contributes To Control Of Posture, Movement, Maria Bengtson Oct 2017

Muscle Coordination Contributes To Function After Stroke; Proprioception Contributes To Control Of Posture, Movement, Maria Bengtson

Dissertations (1934 -)

More than half of stroke survivors experience persistent upper extremity motor impairments that can negatively impact quality of life and independence. Effective use of the upper extremity requires coordination of agonist/antagonist muscle pairs, as well as coordination of multiple control actions for stabilizing and moving the arm. In this dissertation, I present three studies in which I recorded isometric torque production, single joint movement and stabilization, and clinical measures of function and impairments after stroke to evaluate the extent to which changes in coordination of agonist/antagonist muscles and of sequential control actions contribute to deficits after stroke. In Aim 1, …


Motion Artifact Evaluation Of Coronary Ct Angiography Images, Hongfeng Ma Oct 2017

Motion Artifact Evaluation Of Coronary Ct Angiography Images, Hongfeng Ma

Dissertations (1934 -)

The objective of this dissertation was to develop and validate an automated algorithm to quantify motion artifact level on coronary CT angiography (CCTA) images. Unlike existing motion artifact reduction techniques that evaluate the relative level of motion artifacts within one exam, this dissertation aims to quantify the absolute level of motion artifacts across exams from varying patients. The ability to quantify absolute motion artifact level enables several potential applications, for example, assessing and comparing two motion artifact reduction techniques. This dissertation includes three specific aims. Aim 1 investigated the absolute motion artifact quantification effectiveness of six motion artifact metrics using …


Nucleotide-Dependent Preferential Localization Of Ras In Model Membranes With Lipid Raft Nanodomains, Anna Shishina Oct 2017

Nucleotide-Dependent Preferential Localization Of Ras In Model Membranes With Lipid Raft Nanodomains, Anna Shishina

Dissertations (1934 -)

Membrane proteins constitute a third of all proteins in the cell and more than 50% of drug targets. However, the analysis of membrane proteins has many challenges owing to their partially hydrophobic surfaces, flexibility and lack of stability. One example of an essential membrane protein is Ras superfamily. Ras is a small monomeric GTPase involved in regulation of cell growth, proliferation and differentiation. Therefore, Ras and its effectors are among the most important targets for cancer therapy. A detailed knowledge of the processes occurring during signal propagation via Ras might help to elucidate the mechanisms of the involved signal cascades. …


Effects Of Random Oscillations On Balance Control In Healthy Young Adults, Jacob Van Dehy Oct 2017

Effects Of Random Oscillations On Balance Control In Healthy Young Adults, Jacob Van Dehy

Master's Theses (2009 -)

In human walking, balance control is managed through proactive changes in spatio-temporal parameters of stepping [1]. It has been suggested that continuous disruptions to healthy young adult balance cause greater changes to overall variability of these parameters than a shift in the mean stepping parameters [2]. This suggests that walking may be occurring in a more reactive manner, modulating to maintain balance without increasing the mean significantly. Work using continuous oscillations to treadmill walking suggest there is an interplay between the predictability of a signal used to disrupt subject balance and the degree to which compensation occurs [3]. To determine …


Effects Of Palatal Expansion On Speech Production, Jason Milton Meinhardt Jul 2017

Effects Of Palatal Expansion On Speech Production, Jason Milton Meinhardt

Master's Theses (2009 -)

Introduction: Rapid palatal expanders (RPEs) are a commonly used orthodontic adjunct for the treatment of posterior crossbites. RPEs are cemented to bilateral posterior teeth across the palate and thus may interfere with proper tongue movement and linguopalatal contact. The purpose of this study was to identify what specific role RPEs have on speech sound production for the child and early adolescent orthodontic patient. Materials and Methods: RPEs were treatment planned for patients seeking orthodontics at Marquette University. Speech recordings were made using a phonetically balanced reading passage (“The Caterpillar”) at 3 time points: 1) before RPE placement; 2) immediately after …


Examining The Durability Of Peers For Adolescents With Asd: Maintenance Of Neurological And Behavioral Effects, Bridget Kathleen Dolan Jul 2017

Examining The Durability Of Peers For Adolescents With Asd: Maintenance Of Neurological And Behavioral Effects, Bridget Kathleen Dolan

Dissertations (1934 -)

To date, there are no known published studies that have assessed the maintenance of treatment effects in the context of neurological changes and their relationship to behavioral outcomes following a social skills intervention for adolescents with Autism Spectrum Disorder (ASD). The few studies that have incorporated long-term assessment into their design have focused exclusively on sustained behavioral responses to treatment. Individuals with ASD across the lifespan exhibit aberrant neural activity, which is thought to underlie social skill deficits noted in persons on the spectrum. Thus, this study sought to examine the impact of a social skills intervention, the Program for …


Aging, Executive Function, Fronto-Parietal Network Cortical Thickness: Insights From Cognitive Reserve, Katherine Reiter Jul 2017

Aging, Executive Function, Fronto-Parietal Network Cortical Thickness: Insights From Cognitive Reserve, Katherine Reiter

Dissertations (1934 -)

Cognitive reserve (CR) indexes the nonlinear relationship between neurological insult and behavioral change. CR is manifested in both static factors (e.g., childhood environment, education) and modifiable lifestyle factors, (e.g., leisure activities). Detailed investigation of the influence of CR on cortical thickness, which indexes neuropathology, and cognitive functioning could be particularly important in understanding the heterogeneity of Alzheimer’s disease (AD). While memory decline is the hallmark of AD, executive functioning (EF) decline often predates memory changes, making EF an important target for investigating CR influences. The current study examines the relationship of CR and genetic risk for AD (ε4) on EF …


Markerless Kinematics Of Pediatric Manual Wheelchair Mobility, Jacob Robert Rammer Jul 2017

Markerless Kinematics Of Pediatric Manual Wheelchair Mobility, Jacob Robert Rammer

Dissertations (1934 -)

Pediatric manual wheelchair users face substantial risk of orthopaedic injury to the upper extremities, particularly the shoulders, during transition to wheelchair use and during growth and development. Propulsion strategy can influence mobility efficiency, activity participation, and quality of life. The current forefront of wheelchair biomechanics research includes translating findings from adult to pediatric populations, improving the quality and efficiency of care under constrained clinical funding, and understanding injury mechanisms and risk factors. Typically, clinicians evaluate wheelchair mobility using marker-based motion capture and instrumentation systems that are precise and accurate but also time-consuming, inconvenient, and expensive for repeated assessments. There is …


The Neural Encoding Of Reward In The Striatal-Pallidal Circuitry, Chung Lung Chan Jul 2017

The Neural Encoding Of Reward In The Striatal-Pallidal Circuitry, Chung Lung Chan

Dissertations (1934 -)

Humans and animals are constantly exposed to external stimuli. The ability to process reward value of a stimulus is critical to guiding appropriate behavior and essential for survival. These processes are regulated by neuronal activity and neurochemical signaling in the reward circuitry, particularly in the nucleus accumbens (NAc). The NAc receives dopaminergic inputs from the midbrain ventral tegmental area (VTA) and sends GABAergic projections to the ventral pallidum (VP). Electrophysiological studies have characterized phasic neuronal responses in the NAc that differential encode appetitive and aversive taste stimuli. Exposure to an appetitive taste stimulus evoked predominantly phasic inhibitory responses in the …


Rediscovery Of The Microtubule System In Chlamydomonas, Yi Liu Jul 2017

Rediscovery Of The Microtubule System In Chlamydomonas, Yi Liu

Dissertations (1934 -)

Extensive studies have revealed the complex mechanisms underlying the roles of the microtubule system in fundamental cellular processes, the severe consequences in development and health resulted from its anomaly, and the irreplaceable therapeutic agents that perturbs this vital yet inherently unstable cytoskeletal system. Most of the concepts derived from a handful of model organisms become dogma of the field despite contrary observations. By overcoming a major limitation of biflagellate green alga Chlamydomonas - the intense autofluorescence common to photosynthetic cells - this dissertation discovered new phenomena of the microtubule system and conceived an invention. The microtubule system of the green …


Neuromuscular Function In Women Postpartum, Rita Deering Jul 2017

Neuromuscular Function In Women Postpartum, Rita Deering

Dissertations (1934 -)

Efficient abdominal muscle function is important for functional mobility in men and women, and dysfunction of these muscles has been associated with impaired function such as low back pain. This dissertation explored abdominal muscle function in healthy young men and young women who have never been pregnant (nulligravid). As pregnancy and child birth also impact the tissues of the abdominal wall, this dissertation will also explore abdominal muscle function in postpartum women. This dissertation involved three primary aims. Aim1 compared abdominal muscle function and experimental pain perception in males and nulligravid females. Maximal strength over a range of trunk angles, …


The Noncanonical Roles Of Two Primordial Molecules In Flagella, Xiaoyan Zhu Jul 2017

The Noncanonical Roles Of Two Primordial Molecules In Flagella, Xiaoyan Zhu

Dissertations (1934 -)

Motile cilia and flagella are ancient organelles that eukaryotic organisms today still rely on to thrive in their natural environment. Not surprisingly, accumulated evidence has shown that the intricate motility machinery, the microtubule-based axoneme, is evolutionarily conserved down to the molecular level. This notion is epitomized by the signature axonemal complex, the radial spoke (RS). The RS is part of a control center conferring the high frequency and tightly regulated movement. Key RS proteins discovered in biflagellate green alga, Chlamydomonas reinhardtii, are also generated by nearly all ciliated organisms, including Homo sapiens. Among them are two subunits from primordial protein …


The Development And Psychometric Analysis Of The Mu- Fertility Knowledge Assessment Scale, Qiyan Mu Jul 2017

The Development And Psychometric Analysis Of The Mu- Fertility Knowledge Assessment Scale, Qiyan Mu

Dissertations (1934 -)

Young women between the ages of 18 to 24 experience disproportionally high rates of negative sexual and reproductive health outcomes. Inadequate and inaccurate fertility knowledge can hinder a young woman’s self-care abilities in managing her sexual and reproductive health. There is no validated instrument to assess young women’s fertility knowledge. The primary purpose of this study is to develop and evaluate the psychometric properties of the MU-fertility knowledge assessment scale (MU-FKAS) for young women. The secondary purpose is to explore the relationships among young women’s individual and contextual factors, self-perceived fertility knowledge, actual fertility knowledge, and fertility health risks. A …


The Effect Of Heat Treatment On The Bending Properties Of A Cobalt-Chromium Orthodontic Wire, Alex Schwab Jul 2017

The Effect Of Heat Treatment On The Bending Properties Of A Cobalt-Chromium Orthodontic Wire, Alex Schwab

Master's Theses (2009 -)

Introduction: Elgiloy, a brand name of the original cobalt-chromium orthodontic wire, has been around for more than 50 years; yet despite this, little literature is available. Most of the literature on Elgiloy wires tends to evaluate the wires in tension. For these reasons, this study aimed to determine the bending properties of the four available tempers of Elgiloy wires and how heat treatment affects the wires’ bending properties. Materials and Methods: All four tempers of Elgiloy (red, yellow, green, and blue) were ordered in straight lengths containing 20 wires per pack that are each 0.018 inches in diameter and 14 …


Reliability Of Digital Dental Cast Measures As Compared To Cone-Beam Computed Tomography For Analyzing The Transverse Dimension, Brian Michel Jul 2017

Reliability Of Digital Dental Cast Measures As Compared To Cone-Beam Computed Tomography For Analyzing The Transverse Dimension, Brian Michel

Master's Theses (2009 -)

The purpose of this study was to assess the consistency in diagnosing the transverse dimension on cone-beam computed tomography (CBCT) images as compared to digital dental models. The study consisted of 11 patients with posterior crossbite at the level of the first molar and 17 patients with no crossbite at the level of the first molar. 13 patients were male and 15 patients were female with an overall mean age of 13.6 years. Eight linear measurements and two angular measurements were made on CBCT images of the patients and six linear measurements were made on the corresponding digital dental casts. …


Development Of Kinematic Templates For Automatic Pronunciation Assessment Using Acoustic-To-Articulatory Inversion, Deriq K. Jones Jul 2017

Development Of Kinematic Templates For Automatic Pronunciation Assessment Using Acoustic-To-Articulatory Inversion, Deriq K. Jones

Master's Theses (2009 -)

Computer-aided pronunciation training (CAPT) is a subcategory of computer-aided language learning (CALL) that deals with the correction of mispronunciation during language learning. For a CAPT system to be effective, it must provide useful and informative feedback that is comprehensive, qualitative, quantitative, and corrective. While the majority of modern systems address the first 3 aspects of feedback, most of these systems do not provide corrective feedback. As part of the National Science Foundation (NSF) funded study “RI: Small: Speaker Independent Acoustic-Articulator Inversion for Pronunciation Assessment”, the Marquette Speech and Swallowing Lab and Marquette Speech and Signal Processing Lab are conducting a …


Direct Visual Approximation Of Arch Length Discrepancy And Cephalometric Measurements, Bradley J. Wurm Jul 2017

Direct Visual Approximation Of Arch Length Discrepancy And Cephalometric Measurements, Bradley J. Wurm

Master's Theses (2009 -)

Introduction: Arch length discrepancy and cephalometric analysis are critical components of orthodontic treatment planning. Both have direct effects on the decision to extract teeth or not and treatment mechanics as well. Visual approximation is the most common method used to analyze arch length discrepancy among practitioners. Current trends show a decrease in the amount of orthodontists completing a cephalometric analysis. Previous studies have shown a tendency for orthodontists to overestimate the degree of crowding when visually approximating on dental casts. No previous study has assessed the ability to visually approximate cephalometric angle measurements. The purpose of this survey was to …


Thermal Properties Of Commonly Used Clear Aligner Systems As-Received And After Clinical Use, Louis Wenger Jul 2017

Thermal Properties Of Commonly Used Clear Aligner Systems As-Received And After Clinical Use, Louis Wenger

Master's Theses (2009 -)

Background/Objectives: The purpose of this study was to investigate the thermal properties, particularly glass transition temperature, of the polymers that are used to fabricate three different types of modern orthodontic aligners. Invisalign, (Align Technology, Inc, Santa Clara, CA, USA), Simpli5 (Allesee Orthodontic Appliances, Sturtevant, WI, USA), and ClearCorrect (ClearCorrect, Round Rock, TX, USA) were examined both as-received and after clinical use to determine if any differences were present both between and within aligners. Materials/Methods: Orthodontic aligners were collected from three different patients using the systems under investigation after two weeks of intraoral use. Duplicate, un-used samples were obtained from the …


Evaluating Wall Shear Stress Indices To Uncover Stimuli For Restenosis And Malapposition In Stented Coronary Arteries, Ali A. Aleiou Jul 2017

Evaluating Wall Shear Stress Indices To Uncover Stimuli For Restenosis And Malapposition In Stented Coronary Arteries, Ali A. Aleiou

Master's Theses (2009 -)

The cause of coronary artery neointimal thickening leading to restenosis in ~10% of drug-eluting stents is unknown. Although research suggests adverse values of traditional wall shear stress (WSS) indices may contribute, studies to date have not accounted for stent geometry, which dictates local WSS patterns influencing drug concentration. Recently proposed WSS indices such as WSS variability and WSS exposure time (WSSET) may shed further light on restenosis or, the opposite effect, resorption. The objective of this investigation was to locally evaluate traditional and recently proposed post-stenting metrics and their respective impact on restenosis or resorption. This study used de-identified data …


The Social And Historical Subject In Sartre And Foucault And Its Implications For Healthcare Ethics, Kimberly Siobhan Engels Jul 2017

The Social And Historical Subject In Sartre And Foucault And Its Implications For Healthcare Ethics, Kimberly Siobhan Engels

Dissertations (1934 -)

This dissertation explores Jean Paul Sartre’s and Michel Foucault’s view that subjectivity is socially and historically constituted. Additionally, it explores their corresponding ethical thought and how these viewpoints can be applied to ethical issues in the delivery of healthcare. Sartre and Foucault both hold the view that human beings as subjects are not just participants or spectators in social practices, rather, they become subjects with ontological possibilities through their interaction with these practices. In Chapter One, I trace Sartre’s views on subjectivity in his two major works Being and Nothingness and The Critique of Dialectical Reason, Volume 1, showing how …


Analysis Of Flexural Strength And Monotonic Load To Failure Following Simulated Chairside Adjustments And Repair In A Lithium Disilicate Glass-Ceramic, Ali Ramadhan Apr 2017

Analysis Of Flexural Strength And Monotonic Load To Failure Following Simulated Chairside Adjustments And Repair In A Lithium Disilicate Glass-Ceramic, Ali Ramadhan

Master's Theses (2009 -)

Introduction: There are no studies regarding e.max Press that evaluate post-adjustment healing protocols and their effect on the load to failure in a clinically relevant test. It is essential to find the ultimate treatment protocol which will help clinicians preserve the physical properties of the ceramic restoration after adjustment. Material and Methods: The total number of samples used in this study was 440 IPS e.max press discs. The discs were 15 mm in diameter and 1 mm of thickness. The material was tested for flexural strength and monotonic load to failure. The test was done in two parts and with …


Speaker-Specific Adaptation Of Maeda Synthesis Parameters For Auditory Feedback, Joseph Vonderhaar Apr 2017

Speaker-Specific Adaptation Of Maeda Synthesis Parameters For Auditory Feedback, Joseph Vonderhaar

Master's Theses (2009 -)

The Real-time Articulatory Speech Synthesizer (RASS) is a research tool in the Marquette Speech and Swallowing lab that simultaneously collects acoustic and articulatory data from human participants. The system is used to study acoustic-to-articulatory inversion, articulatory-to-acoustic synthesis mapping, and the effects of real-time acoustic feedback. Electromagnetic Articulography (EMA) is utilized to collect position data via sensors placed in a subject’s mouth. These kinematic data are then converted into a set of synthesis parameters that controls an articulatory speech synthesizer, which in turn generates an acoustic waveform matching the associated kinematics. Independently from RASS, the synthesized acoustic waveform can be further …


Relationship Of Exposure To Heart Failure Discharge Teaching To Readmission Within 30 Days, Becky Ann Pogacar Apr 2017

Relationship Of Exposure To Heart Failure Discharge Teaching To Readmission Within 30 Days, Becky Ann Pogacar

Dissertations (1934 -)

Heart Failure (HF) patients are at increased risk for higher rates of hospital readmission within 30 days. Previous studies have demonstrated educational interventions delivered by nurses reduce readmission but the relationship of the dose of teaching to HF readmission or ED utilization remains unclear. A retrospective correlational design framed by the General Outcomes Effectiveness Model was utilized to (1) establish a relationship between the dose of discharge teaching documented by acute care nurses and the outcomes of hospital readmission and ED utilization within 30 days of a previous hospital discharge and (2) identify the teaching components included in an evidence-based …


Regulation Of System Xc-By The Neuropeptide Pacap: Implications For Glutamate Transmission In Drug Addiction, Linghai Kong Apr 2017

Regulation Of System Xc-By The Neuropeptide Pacap: Implications For Glutamate Transmission In Drug Addiction, Linghai Kong

Dissertations (1934 -)

Drug addiction is a chronic brain disorder characterized by heightened relapse susceptibility. Drug-induced aberrant glutamate signaling in corticostriatal circuitry contributes to behaviors in virtually every preclinical model of drug seeking and correlates with drug craving in human. Here, we propose that glutamate signaling is a product of integrated activity between neurons and astrocytes, such that disruptions within astrocytes can stem from abnormal neuronal signaling (e.g., altered corticostriatal firing) and be the source of additional disruptions in other neuronal circuits. The astrocytic mechanism studied in these experiments is system xc- (Sxc) since drug-induced changes to this non-vesicular glutamate release mechanism contribute …


The Cry Of The Poor: Anthropology Of Suffering And Justice In Health Care From A Latin American Liberation Approach, Alexandre Andrade Martins Apr 2017

The Cry Of The Poor: Anthropology Of Suffering And Justice In Health Care From A Latin American Liberation Approach, Alexandre Andrade Martins

Dissertations (1934 -)

This dissertation examines the connection between poverty and health inequalities from a liberation theological ethics perspective. It uses Simone Weil’s and Latin American liberation theology’s approaches to suffering and social justice as theoretical sources to address health inequalities and the suffering of the poor because of social injustice, vulnerability to diseases, and lack of healthcare assistance. First of all, these approaches are examined from how they shape an anthropology of suffering that enable us to understand the suffering of the poor and, at the same time, to recognize them as agents of their own liberation and struggle for justice in …


Objective And Subjective Influences On Cognitive Performance In Adolescents With Type 1 Diabetes, Natalie E. Benjamin Apr 2017

Objective And Subjective Influences On Cognitive Performance In Adolescents With Type 1 Diabetes, Natalie E. Benjamin

Master's Theses (2009 -)

Type 1 diabetes mellitus (T1DM) is an increasingly common chronic illness in children and adolescents that can result in short- and long-term health complications. Disease management can be a particular challenge for adolescents seeking autonomy from caregivers. Recently, there has been a significant increase in adolescents’ use of diabetes-related technology to aid in blood glucose (BG) management and insulin administration. Individuals with T1DM also experience symptoms related to their BG levels, and these symptoms can serve as indicators of out-of-range BG levels and guide management decisions. Although research shows that diabetes-related health factors can affect cognitive functioning, no existing research …


The Relationship Between The Military's Masculine Culture And Service Members' Help-Seeking Behaviors, Rachel Reit Apr 2017

The Relationship Between The Military's Masculine Culture And Service Members' Help-Seeking Behaviors, Rachel Reit

Master's Theses (2009 -)

Since the terrorist attacks on September 11, 2001, over 2.5 million active duty U.S. military service members have deployed to Iraq and Afghanistan (Knobloch & Wilson, 2015). Of those who return as veterans, twenty percent experience serious mental health problems, and only 30-40% of them seek help or treatment (Tanielian & Jaycox, 2008; Wilson, Gettings, Hall, & Pastor, 2015). Recently, the military has increased efforts to encourage help-seeking behaviors among service members and to normalize mental health treatment. However, the military’s masculine culture and emphasis on strength and toughness inhibits the success of these efforts. The present studies investigate the …