Medicine and Health Sciences Commons^™

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 …

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 …

Extending The Family: Roles For Uptake2 Transporters In Regulation Of Monoaminergic Signaling, Paul J. Gasser, Lynette C. Daws

Biomedical Sciences Faculty Research and Publications

No abstract provided.

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. …

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 …

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, …

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 …

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 …

Nursing Students’ Perception Of The Stigma Of Mental Illness, Abir K. Bekhet, Carolyn J. Murrock, Qiyan Mu, Harpreet Singh-Gill

College of Nursing Faculty Research and Publications

Background: Mental health disorders are highly prevalent in the U.S. Nursing students’ perceptions regarding the stigma of mental illness will impact the quality of care delivered and the patients’ outcomes.

Method: Data was collected from 64 sophomore students. Five open ended questions were distributed to the students during the first class. All the surveys were collected by a volunteer student and were placed in the instructor’s mailbox in a sealed envelope.

Results: The results revealed three categories: students ‘perceptions of the causes of mental illness stigmatization, their own perception of mental illness, and their perception on how to break the …

Evaluating Motivational Interviewing In The Physician Assistant Curriculum, Patrick Halbach, Abiola O. Keller

Physician Assistant Studies Faculty Research and Publications

Purpose Motivational interviewing (MI) is an evidence-based technique that enables clinicians to help patients modify health behaviors. Although MI is an essential tool for physician assistants (PAs), the extent to which it is addressed in PA curricula in the United States is unknown. This study is a comprehensive description of MI education in PA programs in the United States.

Methods Data are from the 2014 Physician Assistant Education Association Annual Program Survey. Descriptive statistics were conducted on de-identified data from all 186 PA programs in the United States.

Results Of the 186 PA programs surveyed, 72.58% (n = 135) reported …

The Impact Of Simulation Sequencing On Perceived Clinical Decision Making, Aimee A. Woda, Jamie Hansen, Mary Paquette, Robert V. Topp

College of Nursing Faculty Research and Publications

An emerging nursing education trend is to utilize simulated learning experiences as a means to optimize competency and decision making skills. The purpose of this study was to examine differences in students' perception of clinical decision making and clinical decision making-related self-confidence and anxiety based on the sequence (order) in which they participated in a block of simulated versus hospital-based learning experiences.

A quasi-experimental crossover design was used. Between and within group differences were found relative to self-confidence with the decision making process. When comparing groups, at baseline the simulation followed by hospital group had significantly higher self-confidence scores, however, …

Ethics In Practice: From Moral Distress To Moral Resilience, Kathryn Schroeter

College of Nursing Faculty Research and Publications

No abstract provided.

Debrief In Emergency Departments To Improve Compassion Fatigue And Promote Resiliency, Kristin Haglund, Madeline Schmidt

College of Nursing Faculty Research and Publications

The purpose of this case study was to describe compassion fatigue using one nurse's experience as an example and to present the process of Personal Reflective Debrief as an intervention to prevent compassion fatigue in emergency department (ED) nurses. Debriefing after adverse outcomes using a structured model has been used in health care as a nonthreatening and relatively low-cost way to discuss unanticipated outcomes, identify opportunities for improvement, and heal as a group. There are many methods of debrief tailored to specific timing around events, specific populations of health care workers, and amount of time for debriefing. Debrief with personal …

Pediatric Nurses' Perspectives On Medication Teaching In A Children's Hospital, Cori A. Gibson, Ashley Stelter, Kristin Haglund, Stacee M. Lerret

College of Nursing Faculty Research and Publications

Purpose

To explore inpatient pediatric nurses' current experiences and perspectives on medication teaching.

Design and Methods

A descriptive qualitative study was conducted at a Midwest pediatric hospital. Using convenience sampling, 26 nurses participated in six focus groups. Data were analyzed in an iterative group coding process.

Results

Three themes emerged. 1) Medication teaching is an opportunity. 2) Medication teaching is challenging. Nurses experienced structural and process challenges to deliver medication teaching. Structural challenges included the physical hospital environment, electronic health record, and institutional discharge workflow while process challenges included knowledge, relationships and interactions with caregivers, and available resources. 3) Medication …

Physical Activity, Functional Ability, And Obesity In Older Adults: A Gender Difference, Kimberlee A. Gretebeck, Leann M. Sabatini, David R. Black, Randall J. Gretebeck

College of Nursing Faculty Research and Publications

Disability, institutionalization, and loss of independence may be directly caused or exacerbated by physical inactivity and obesity. The purpose of the current cross-sectional survey was to explore the impact of gender and obesity on functional ability tasks, physical activity, and psychosocial factors in older adults. Participants comprised 964 University retirees (55% female, mean age = 75.3 years, SD = 6.7 years) with a mean body mass index (BMI) of 26.1 kg/m² (SD = 4.7 kg/m²). Results revealed significant gender and BMI interaction effects. Women were less active than men and obese women were most functionally impaired, …

A Minimal Contact Diet And Physical Activity Intervention For White-Collar Workers, Kimberlee A. Gretebeck, Tatiana Bailey, Randall J. Gretebeck

College of Nursing Faculty Research and Publications

Minimal contact lifestyle interventions with multiple components coupled with health screening have the potential to improve worker health. The purpose of this study was to test a minimal contact multiple component lifestyle diet and exercise intervention. The multiple components that were included in this project included a worksite health screening, brief counseling session, emailed newsletter, and a pedometer. In response to the intervention, participants reported an increase in green salad, fruit, and vegetable consumption as well as an increase in self-efficacy for consuming three servings of fruits and vegetables a day. Study participants also demonstrated a significant increase in physical …

Evaluation Of Die Trim Morphology Made By Cad-Cam Technology, Pratiksha Agrawal, Geoffrey A. Thompson, Seok-Hwan Cho, Gerald J. Ziebert

School of Dentistry Faculty Research and Publications

Statement of problem

The die contour can affect the emergence profile of prosthetic restorations. However, little information is available regarding the congruency between a stereolithographic (SLA) die and its corresponding natural tooth.

Purpose

The purpose of this vitro study was to evaluate the shapes of SLA die in comparison with the subgingival contour of a prepared tooth to be restored with a ceramic crown.

Material and methods

Twenty extracted human teeth, 10 incisors, and 10 molars, were disinfected and mounted in a typodont model. The teeth were prepared for a ceramic restoration. Definitive impressions were made using an intraoral scanner …

S-100 Negative Granular Cell Tumor (So-Called Primitive Polypoid Non-Neural Granular Cell Tumor) Of The Oral Cavity, Yeshwant B. Rawal, Thomas B. Dodson

School of Dentistry Faculty Research and Publications

Four cases of cutaneous S-100 negative granular cell tumor were described in 1991. Until now, only 3 cases of oral involvement have been documented in English literature. Two additional cases of oral S-100 negative granular cell tumor are described. Immunohistochemical markers were applied to exclude other lesions that may show the presence of granular cells. The clinical findings were correlated with the histopathological and immunohistochemical features to arrive at the appropriate diagnosis. S-100 negative granular cell tumors are erythematous polypoid masses commonly mistaken for granulation tissue or a pyogenic granuloma. Any part of the oral cavity may be affected. Histopathologically, …

Physiological Response To Firefighting Activities Of Various Work Cycles Using Extended Duration And Prototype Scba, Richard M. Kesler, Ipek Ensari, Rachel E. Bollaert, Robert W. Motl, Elizabeth T. Hsiao-Wecksler, Karl S. Rosengren, Bo Fernhall, Denise L. Smith, Gavin P. Horn

Exercise Science Faculty Research and Publications

Firefighters’ self-contained breathing apparatus (SCBA) protects the respiratory system during firefighting but increases the physiological burden. Extended duration SCBA (>30 min) have increased air supply, potentially increasing the duration of firefighting work cycles. To examine the effects of SCBA configuration and work cycle (length and rest), 30 firefighters completed seven trials using different SCBA and one or two bouts of simulated firefighting following work cycles common in the United States. Heart rate, core temperature, oxygen consumption, work output and self-reported perceptions were recorded during all activities. Varying SCBA resulted in few differences in these parameters. However, during a second …

Ventilation And Neurochemical Changes During Μ-Opioid Receptor Activation Or Blockade Of Excitatory Receptors In The Hypoglossal Motor Nucleus Of Goats, Thomas M. Langer, Suzanne E. Neumueller, Emma Crumley, Nicholas J. Burgraff, Sawan Talwar, Matthew R. Hodges, Lawrence Pan, Hubert V. Forster

Physical Therapy Faculty Research and Publications

Neuromodulator interdependence posits that changes in one or more neuromodulators are compensated by changes in other modulators to maintain stability in the respiratory control network. Herein, we studied compensatory neuromodulation in the hypoglossal motor nucleus (HMN) after chronic implantation of microtubules unilaterally (n = 5) or bilaterally (n = 5) into the HMN. After recovery, receptor agonists or antagonists in mock cerebrospinal fluid (mCSF) were dialyzed during the awake and non-rapid eye movement (NREM) sleep states. During day studies, dialysis of the µ-opioid inhibitory receptor agonist [d-Ala², N-MePhe⁴, Gly-ol]enkephalin (DAMGO; 100 µM) decreased …

The Efficacy Of Pressure Ulcer Treatment With Cathodal And Cathodal-Anodal High-Voltage Monophasic Pulsed Current: A Prospective, Randomized, Controlled Clinical Trial, Anna Polak, Luther C. Kloth, Edward Blaszczak, Jakub Taradaj, Agnieszka Nawrat-Szoltysik, Tomasz Ickowicz, Ewa Hordynska, Andrzej Franek, Cezary Kucio

Physical Therapy Faculty Research and Publications

Background. Studies show that anode and cathode electrical stimulation (ES) promotes the healing of wounds, but specific protocols for both electrodes are not available.

Objective. To compare the effectiveness of cathodal versus cathodal+anodal ES in the treatment of Category II-IV pressure ulcers (PrUs).

Design. Prospective, randomized, controlled, clinical study.

Setting. Three nursing and care centers.

Patients. Sixty-three participants with PrUs were randomly formed into a cathodal ES group (CG: N = 23; mean age of 79.35; SD 8.48), a cathodal+anodal ES group (CAG: N = 20; mean age of 79.65; SD 11.44) and a placebo ES group (PG: N = …

Physical Activity Modulates Corticospinal Excitability Of The Lower Limb In Young And Old Adults, Hamidollah Hassanlouei, Christopher W. Sundberg, Ashleigh E. Smith, Andrew Kuplic, Sandra K. Hunter

Exercise Science Faculty Research and Publications

Aging is associated with reduced neuromuscular function, which may be due in part to altered corticospinal excitability. Regular physical activity (PA) may ameliorate these age-related declines, but the influence of PA on corticospinal excitability is unknown. The purpose of this study was to determine the influence of age, sex, and PA on corticospinal excitability by comparing the stimulus-response curves of motor evoked potentials (MEP) in 28 young (22.4 ± 2.2 yr; 14 women and 14 men) and 50 old adults (70.2 ± 6.1 yr; 22 women and 28 men) who varied in activity levels. Transcranial magnetic stimulation was used to …

Sex Differences In Spatial Accuracy Relate To The Neural Activation Of Antagonistic Muscles In Young Adults, Agostina Casamento-Moran, Sandra K. Hunter, Yen-Ting Chen, Min-Hyuk Kwon, Emily J. Fox, Basma Yacoubi, Evangelos A. Christou

Exercise Science Faculty Research and Publications

Sex is an important physiological variable of behavior, but its effect on motor control remains poorly understood. Some evidence suggests that women exhibit greater variability during constant contractions and poorer accuracy during goal-directed tasks. However, it remains unclear whether motor output variability or altered muscle activation impairs accuracy in women. Here, we examine sex differences in endpoint accuracy during ankle goal-directed movements and the activity of the antagonistic muscles. Ten women (23.1 ± 5.1 years) and 10 men (23 ± 3.7 years) aimed to match a target (9° in 180 ms) with ankle dorsiflexion. Participants performed 50 trials and we …

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 …

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

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. …

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 …

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 …

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 …

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 …