Medicine and Health Sciences Commons^™

Safety And Effectiveness Of Stoss Therapy In Children With Vitamin D Deficiency, Paul Tannous

Theses

Objectives: Paediatric vitamin D (25-hydroxyvitamin D - 25OHD) deficiency can lead to nutritional rickets and extra-skeletal complications. Compliance with daily therapy can be difficult, making high dose, short-term vitamin D (stoss) therapy attractive to correct vitamin D deficiency. We compared the effectiveness and safety of standard versus stoss therapy in treating childhood 25OHD deficiency.

Study Design: Children aged 2 - 16 years with 25OHD <50nmol/L were randomized to either standard (5,000IU daily for 80 days) or stoss (100,000 IU weekly for 4 weeks) cholecalciferol. Participants underwent evaluation of effectiveness and safety. 25OHD, random spot calcium: creatinine ratio (Ca:Cr) and compliance were measured at 12 weeks.

Results: 151 children were enrolled in the study (68 standard and 83 stoss), median age 9 years (IQR: 6 - 12 years). Baseline 25OHD levels were 26 nmol/L (IQR: 19 - 35 nmol/L) and 32 nmol/L …

Optimising Refurbishment In Australian Residential Aged Care Facilities Using A Mixed Methods Approach, S Neylon

Theses

The growth in ageing populations in addition to an increase in rates of chronic diseases such as dementia, has led to projections that this upsurge will be matched by increased demand for residential aged care placements for the foreseeable future. Currently, significant proportions of aged care government funding both locally and internationally are directed towards the residential sector. Australia has recently released Aged Care Quality Standards whereby the outcomes to residents need to be verified specifically across a range of domains (including the living and built environment) in order to maintain this government funding. Building new facilities is not always …

Incorporating An Interdisciplinary Approach To Examine The Relationship Between Physical Capacity, Perceptual Motor Skill, Mental Toughness And Match Performance In Australian Football, Benjamin Piggott

Theses

Performance in sports involves a combination of components such as physiological, psychological and perceptual-cognitive-motor. Yet, despite a call in the literature dating back more than 20 years for an interdisciplinary approach, the majority of studies in sports science have used a monodisciplinary approach focusing on one component to understand sport performance. Accordingly, the primary aim of this thesis was to investigate the value of an interdisciplinary approach to understand match performance using Australian Football (AF) as the exemplar sport. The secondary aim of this thesis was to quantify individual differences in performance and representative task design (RTD) of tests used …

Study Of The Health Needs Of Older Women Experiencing Homelessness In The Perth Metropolitan Area, Gloria Sutherland

Theses

Women aged over 50 years represent the most rapidly growing cohort of the Australian homeless population. Despite an increasing awareness of older Australian women being at risk of homelessness, little is known of how their health contributes to, and changes due to their homelessness. Drawing on the principles of the World Health Organisation’s social determinants of health, this study sought to investigate the personal life circumstances of older homeless women who live in the Perth metropolitan area, their healthcare needs and to identify any barriers to their accessing healthcare.

The study used a convergent mixed methods approach using quantitative and …

A Western Australian Story: A Mixed Method Study Exploring Nutrition Knowledge, Food Intake, Influences On Food Choice, Body Image And Eating Attitudes Of University Students, Michelle Lambert

Theses

Emerging adults are fast gaining recognition as an important target group for health promotion as previous research indicates very few are meeting dietary guidelines, often consuming foods that have increased saturated fats, sugar and sodium. These eating patterns place this group at higher risk of developing chronic illnesses such as obesity, diabetes, cardiovascular disease and cancer. Understanding how and why these eating patterns develop is important to help establish healthy eating behaviours and greater compliance to Australian Dietary Guidelines – Recommended Daily Serves (ADG-RDS) for emerging adults. International research has focused on eating habits, weight gain patterns and possible influences …

Moral Competence In Nursing: An Exploration Of The Giving Voice To Values Curriculum, Catherine Costa

Theses

The development of moral competence is central to the profession of nursing and its practice. Nurses engage in moral decision making that impacts the health of people, families, and communities. It is important, then, to ensure that nursing graduates possess the necessary moral development for engaging in professional practice. To this end, research was conducted, the principle premise of which was to explore the use of the introduction of the Giving Voice to Values curriculum (Gentile, 2010) and its contribution to the development of moral competence in nursing. The Giving Voice to Values curriculum is a values-based methodology enabling students …

Understanding Falls In People With Intellectual Disability In Western Australia, Portia Ho

Theses

Adults with intellectual disability (ID) experience earlier age-related changes, compared with other age-matched populations, but concurrently their life expectancy is increasing. Falls often result in serious injuries and reduced health-related quality of life, however there is limited research regarding falls in older adults with ID. The purpose of this research was to investigate falls among community dwelling older adults with ID, including the epidemiology, risk factors and experiences when engaging with health services after a fall.

A meta-analysis of the incidence and prevalence of falls in adults with ID was initially conducted to inform the research aims. Prospective research was …

Exploring The Validity Of Script Concordance Testing To Assess The Clinical Reasoning Of Medical Students, Micahel Sh Wan

Theses

Assessment of clinical reasoning is often challenging, as it is a complex process of thinking and decision making. Script Concordance Testing (SCT), using authentic clinical scenarios with diagnostic or management uncertainties, has been developed to assess clinical reasoning. As SCT is a relatively new assessment modality, more empirical evidence is needed to support the validity of SCT scores.

This thesis examines key aspects of the validity of SCT scores in the assessment of the clinical reasoning ability of medical undergraduates. A review of the current literature informs the use, design and standard setting of SCT, as well as evidence for …

The Importance Of Environmental Interventions In Eliminating Trachoma Infection In Africa: The Case Of Gashoho Health District, Burundi, Desire Ndisabiye

Theses

Gashoho Health District, Burundi, has not achieved the World Health Organisation (WHO) target of elimination of the blinding infectious disease, trachoma, by 2020. The work in this thesis addresses this problem using three different approaches.

Firstly, a cross-sectional study was undertaken to establish the current trachoma prevalence in Gashoho and whether poor sanitation was a risk factor for infection. 468 individuals from 117 households across four villages were clinically examined for signs of trachoma infection, and completed a questionnaire about environmental risk factors. The current prevalence of trachoma in Gashoho was 7.9% (95 % CI 5.0 - 10.6%). Children under …

Early Post-Operative Rises In Serum Metal Ion Levels In Total Hip Arthroplasty: A Prospective Cohort Study, Michael Le

Theses

Background: Serum Cobalt (Co) and Chromium (Cr) forms part of the diagnostic process for metallosis following Total Hip Arthroplasty (THA). While knowledge exists on longer term metal ion levels, expected early post-operative rises in serum Co and Cr in Metal-on-Polyethylene (MoP) THAs are currently unknown. This study aims to describe early rises in serum Co and Cr at 6 months post-operatively.

Methods: A prospective cohort study of 84 consecutive patients with an uncemented titanium stem from a single THA manufacturer was performed. Patients had either a metal (n=43) or ceramic (n=41) head articulating with a highly cross-linked polyethylene. Serum Co …

Pilot Study Of Behavioral Activation As Adjunct Treatment For Depression In Primary Care, Lindsay Ellen Toler

Graduate Theses, Dissertations, and Problem Reports (ETD)

Many individuals receiving care at a predominantly free primary health care clinic in the northern part of West Virginia are experiencing depression, and medication therapy is the most common form of management with limited resources for psychosocial treatment. Brief psychosocial therapy interventions provided by the primary care provider should be explored as an adjunct treatment for this population in the primary care setting.

A pilot study was conducted to explore the integration of behavioral activation, a brief psychosocial intervention focused on decreasing depressed behavior by increasing nondepressed behavior to reinforce corresponding improvements in mood. Eligible patients were invited to attend …

Understanding The Host Immune Response Against Pseudomonas Aeruginosa To Develop Novel Therapeutics And Vaccines, Emel Sen Kilic

Graduate Theses, Dissertations, and Problem Reports (ETD)

Pseudomonas aeruginosa is a Gram-negative opportunistic bacterium that causes a broad range of acute and chronic infections. The high adaptability and emergence of multidrug-resistant strains of this bacterium pose a significant threat to human health. Particularly, pneumonia caused by this pathogen is associated with high morbidity and mortality in immunocompromised patients. To prevent these infections, we aimed to develop novel vaccine strategies by characterizing the host immune response against P. aeruginosa. During respiratory infections, P. aeruginosa first contacts with epithelial cells along the respiratory tract. Using RNA-sequencing, we were able to characterize transcriptional changes of the epithelial cells in …

Health Outcomes Associated With Gulf War Illness, Shannon K. Barth

Graduate Theses, Dissertations, and Problem Reports (ETD)

Background:

Nearlythirty years after the 1990-1991 Persian Gulf War a definitive case definition for Gulf War Illness (GWI) is lacking. The objective is to explore health outcomes associated with GWI using currently accepted classifications in order to better understand GWI by examining pre-war medical conditions as predictors of probable GWI, mortality outcomes of veterans with probable GWI, and female-specific medical conditions among women with probable GWI. Additionally, we utilize an alternative GWI case definition.

Methods:

Data come from theDepartment of Veterans Affairs (VA)1995-1997 National Health Survey of Persian Gulf War Era Veterans, a population-based survey of deployed …

Performance Study Of Five Different Cabin Air Filters In The Laboratory And On-Road Drive, Fahad Alqahtani

Graduate Theses, Dissertations, and Problem Reports (ETD)

One of the aims of installing ventilation filters in a car is to prevent vehicle occupants from inhaling potentially harmful aerosols emanating from the environment. Vehicle cabin filters are essential in ensuring that a vehicle's air conditioning system provides clean air to its occupants. The purpose of the cabin filter is to improve air quality inside the car to provide better comfort and better protect occupants from experiencing unwanted respiratory problems. Using cabin filters in air conditioning systems is a common practice in modern vehicle manufacturing. Scientists and engineers are continually seeking new ways of improving the efficiency and effectiveness …

Tobacco Cessation In A Dental School Setting, Kerri T. Simpson

Graduate Theses, Dissertations, and Problem Reports (ETD)

Introduction

Tobacco use remains the single largest preventable cause of death in the United States. Currently, the prevalence of tobacco use is 20.7% in adults (≥18 years old) and 31.2% among high school students. According to various studies, over 60% of Americans want to quit tobacco, but it takes a person several attempts to quit before they are successful. There is limited data in the literature that discusses the effectiveness of tobacco cessation programs in US dental schools. Therefore, information on the effectiveness of a tobacco cessation program in a dental school setting could benefit this state and the problem …

A Phenomenological Photovoice Exploration Of Female Exercisers’ Experiences Of Their Body In Fitness Center Environments, Katherine E. Fairhurst

Graduate Theses, Dissertations, and Problem Reports (ETD)

For many women, the relationship with their body and exercise is complex. Exercise can have positive effects on body image, however, not all women appear to benefit positively from all types of exercise. To date, body image research has focused on exercise as an activity and less so on the context in which exercise is performed. Women frequently exercise in fitness centers as young adults which, unfortunately, is associated with body dissatisfaction. Using an Interpretative Phenomenological Analysis (IPA) approach with Photovoice methodology, we explored young adult women’s lived body experiences while exercising in fitness centers. A purposive sample of 11 …

The Effects Of Intrinsic Foot Muscle Strengthening On Foot Posture, Balance, And Agility In Ice Hockey Players, Rebecca Eve Veltrie

Graduate Theses, Dissertations, and Problem Reports (ETD)

Context: Research has shown that intrinsic foot muscle strengthening over a 4-week period is beneficial for improvements in dynamic postural control, function, stability and foot posture. Ice hockey is a sport that requires immense levels of balance, stability and performance on the lateral aspect of the skate. With research lacking on the impact of intrinsic foot muscle strengthening on ice hockey athletes’ balance, foot posture and performance, implementation of such a program may be beneficial for ice hockey players. Objective: The purpose of this study was to explore the effects of foot intrinsic muscle strengthening versus a traditional …

Clear Aligner Therapy Vs. Traditional Brackets On Smile Arc, Sarah Elizabeth Larue

Graduate Theses, Dissertations, and Problem Reports (ETD)

Background and Objectives: More so than ever, the public is becoming exceedingly aware of esthetics, and will evaluate their treatment outcome based upon the improvement to their smile and overall enhancement of their facial appearance. Smile arc is considered to be a key component of facial esthetics. Literature has demonstrated that orthodontic treatment mechanics utilizing traditional brackets and wires can cause flattening of the smile arc and that smiles with flatter arcs are judged to be less attractive. The aim of this study was to determine whether clear aligner therapy can help to preserve or improve the smile arc …

Hepatitis B In At-Risk Groups: Three Studies To Guide Education, Testing, And Vaccination Efforts In West Virginia, Stacy Tressler

Graduate Theses, Dissertations, and Problem Reports (ETD)

Background and Objectives: For over a decade, West Virginia’s (WV) rate of acute hepatitis B has been the highest in the United States (US). In 2017, WV’s rate was 11.7 per 100,000 population, almost 12 times higher than the national rate. The increase in acute hepatitis B cases is largely due to substance misuse, including injection drug use (IDU). Hepatitis B is a vaccine preventable disease yet many at-risk adults remain unvaccinated and susceptible to infection. The objectives of our studies are to 1) describe yearly changes in acute hepatitis B incidence in WV and assess county-level impact of the …

Adherence To A Home Exercise Programme Following A Clinical Programme For Non-Acute Non-Specific Low Back Pain: An Exploratory Study, Judith L'Heureux, Marie-France Coutu, Djamal Berbiche, Christian Larivière

Études primaires

Purpose:Lack of adherence to home exercise programmes is hypothesised to partially explain the modest clinical effects seen in patients with low back pain. This study explored the association between the main biopsychosocial factors and adherence using a theory-driven approach including the fear-avoidance model, the common-sense model and the working alliance concept.

Methods: A repeated measures design was used. During and after an eight-week clinical exercise programme, 48 participants with non-acute and disabling low back pain followed a home exercise programme. Questionnaires assessed home exercise adherence and biopsychosocial factors at baseline, after the eight-week clinical programme and at the six-month follow-up. …

Comparative Performance Of The Nanoscan And The Classic Smps In Determining N95 Filtering Facepiece Efficiency Against Nanoparticles, Clothilde Brochot, Fariborz Haghighat, Ali Bahloul

Études primaires

Nanoparticles are defined as particles with at least one dimension in the range of 1–100 nm. Due to the special properties of nanoparticles, they are used in many workplaces, thus leading to occupational exposure. Filtering facepieces (FFPs) are generally used in these workplaces to reduce the exposure. Many studies have measured FFP efficiency in laboratories using a scanning mobility particle sizer (SMPS). The aim of this study was to determine whether a NanoScan could be used to measure FFP efficiency against nanoparticles in workplaces for one type of N95 FFP. The results showed that the NanoScan gave maximum penetration and …

On Site Comparison Of The Osha 42, Asset Ez4-Nco, Iso-Chek, Dan And Cip10 Methods For Measuring Toluene Diisocyanate (Tdi) At A Polyurethane Foam Factory, Simon Aubin, El Mekki Hamdi, Audrey Joly, Philippe Sarazin, Jacques Lesage, Livain Breau, Mark Spence, Sébastien Gagné

Études primaires

Because of the semi-volatile nature of diisocyanates (being airborne in both physical vapor and particulate phases), their high reactivity and low occupational exposure limits, diisocyanate exposure evaluation has been challenging for industrial hygienists and laboratories. The objective of this study was to compare the toluene diisocyanate (2,4 and 2,6 isomers, TDI) concentration measured by five methods in a flexible polyurethane foam factory using different collection or derivatization approaches. The methods used were: OSHA 42 modified (filter, 1-(2-pyridyl)piperazine) (OSHA), Asset EZ4-NCO (denuder and filter, dibutylamine) (Asset), Iso-Chek (double-filter, 9-(N-methylaminomethyl) anthracene and 1,2-methoxyphenylpiperazine), DAN (filter, 1,8-diaminonaphthalene), and CIP10 (centrifugation, 1,2-methoxyphenylpiperazine). Particle real-time …

On-Site Comparison Of The Osha 47, Asset Ez4-Nco, Iso-Chek, Dan, And Cip10 Methods For Measuring Methylene Diphenyl Diisocyanate (Mdi) At An Oriented-Strand Board (Osb) Factory, Simon Aubin, El Mekki Hamdi, Audrey Joly, Philippe Sarazin, Jacques Lesage, Livain Breau, Mark Spence, Sébastien Gagné

Études primaires

Diisocyanates are occupational contaminants and known sensitizers causing irritation (skin and respiratory tract) as well as occupational asthma. Because of their physicochemical properties (semi-volatile and high reactivity) and low occupational limits, diisocyanate exposure evaluation is still a challenge nowadays for industrial hygienists and laboratories. The objective of this study was to compare the methylene diphenyl diisocyanate (MDI) concentrations measured by five methods using different collection or derivatization approaches in an oriented-strand board (OSB) factory. The methods used were: OSHA 47 (filter, 1-(2-pyridyl)piperazine) (OSHA), Asset EZ4-NCO (denuder and filter, dibutylamine) (Asset), Iso-Chek (double-filter, 9-(N-methylaminomethyl) anthracene and 1,2-methoxyphenylpiperazine), DAN (filter, 1,8-diaminonaphthalene), and …

Qualitative Knowledge Of Filtering Facepiece Respirators For Filtration Performance Tests During The Covid-19 Pandemic, Clothilde Brochot, Mohamed Nejib Saidi, Ali Bahloul

Études primaires

Background: During the COVID-19 pandemic, the pressure on health centers to obtain certified N95 filtering facepiece respirators (N95 FFRs) and the pressure on the FFRs production sector led to a diversification of FFRs’ supply chains, with the approval of several government authorities.

Objective: The main issue then becomes whether these purchased FFRs are as effective as the FFRs commonly used in the pre-COVID-19 period.

Methods: The most efficient way is to test these FFRs under normative conditions. The setup used here allows to measure the pressure drop Δp (mbar) and the filtration efficiency E (%) of FFRs with a constant …

Structural Remodelling Of The Lumbar Multifidus, Thoracolumbar Fascia And Lateral Abdominal Wall Perimuscular Connective Tissues: A Cross-Sectional And Comparative Ultrasound Study, Christian Larivière, Richard Preuss, Dany H. Gagnon, Hakim Mecheri, Sharon M. Henry

Études primaires

Introduction

With low back pain (LBP), remodelling of the lumbar soft tissues involves both trunk muscles and neighbouring passive connective tissues. The aim of the present study was to compare three quantitative measures of these tissues, using ultrasound imaging (USI), among healthy controls and individuals with LBP.

Methods

USI measures from 30 healthy subjects and 34 patients with non-acute LBP were compared between groups and sexes. The measures employed were (1) lumbar multifidus echogenicity (fatty/fibrosis infiltration) at three vertebral levels; (2) posterior layer thickness of the thoracolumbar fascia, and (3) thickness of the perimuscular tissues surrounding the external oblique, internal …

Three-Month Efficacy Of Three Knee Braces In The Treatment Of Medial Knee Osteoarthritis In A Randomized Crossover Trial, Xavier Robert-Lachaine, Yoann Dessery, Étienne L. Belzile, Sylvie Turmel, Philippe Corbeil

Études primaires

Immediate biomechanical and functional effects of knee braces are often reported, however, the duration and type of knee brace treatment for knee osteoarthritis (KOA) remain unclear. The objective was to evaluate usage, comfort, pain, and knee adduction moment (KAM) of three knee braces each worn 3 months by patients. Twenty-four patients with KOA were assigned in a randomized crossover trial a valgus three-point bending system brace (V3P-brace), an unloader brace with valgus and external rotation functions (VER-brace) and a stabilizing brace used after ligament injuries (ACL-brace). Functional questionnaires and gait assessment were carried out before and after each brace wear …

Validation Of A Low-Cost Inertial Motion Capture System For Whole-Body Motion Analysis, X. Robert-Lachaine, H. Mecheri, A. Muller, C. Larue, A. Plamondon

Études primaires

While some low-cost inertial motion capture (IMC) systems are now commercially available, generally, they have not been evaluated against gold standard optical motion capture (OMC). The objective was to validate the low-cost Neuron IMC system with OMC. Whole-body kinematics were recorded on five healthy subjects during manual handling of boxes for about 32 min while wearing 17 magnetic and inertial measurement units with Optotrak clusters serving as a reference. The kinematical model was calibrated anatomically for OMC and with poses for IMC. Local coordinate systems were aligned with angular velocities to dissociate differences due to technology or kinematical model. Descriptive …

Determining Effects Of The Paf-R And Anti-Hypertensive Drugs Mediated Microvesicle Particle Release In Modulating Anti-Tumor Response Of Lung Cancer, Andrew Stephen Forino

Browse all Theses and Dissertations

Lung cancer is one of the world’s leading causes of cancer-related deaths with poor prognosis, and difficult to treat malignancy. Several genetic, and environmental factors including cigarette smoking and hypertension have been linked as the common risk factors for lung cancer. To that end, multiple mechanisms have been proposed in regulating tumor growth, angiogenesis, and metastasis, as well as the efficacy of cancer therapy in experimental lung cancer models. Importantly, studies including ours, have shown that exposure to reactive oxygen species (ROS)-generating stimuli such as cigarette smoking, and cancer therapy produced oxidized lipids with platelet-activating factor (PAF) agonistic activity from …

Discovery And Characterization Of Pathways Involved In Fus And Tdp43-Induced Toxicity In Yeast, Weston Joseph Shaw

Browse all Theses and Dissertations

High-throughput genome-scale studies are becoming increasingly common as a means to discover genetic interactions. This methodology is particularly efficient when performed in the budding yeast Saccharomyces cerevisiae. Here, we (1) overexpress a large human gene library in yeast to assess how many of them are toxic, and (2) use the list of genes generated above to refine and analyze human genes previously identified to enhance toxicity of two ALS-associated proteins, FUS and TDP-43. By introducing each of 13,500 human genes into yeast, we demonstrated that the majority of these genes (about 97%) are not toxic to yeast when overexpressed. These …

Variability In Antibacterial Activity In The Caribbean Sponge Amphimedon Compressa, Mackenzie Reilly

Honors Theses

Coral reefs are essential ecosystems that provide an abundance of natural resources. Sponges, common reef inhabitants, produce a diversity of secondary metabolites that are known to serve as chemical defenses. Secondary metabolites often have ecological functions, such as antipredator and antibacterial activities. I studied the common Caribbean sponge species, Amphimedon compressa, which is known to be chemically defended. Samples were collected from three sites in Belize, two sites in Grand Cayman, and three sites in St. Croix, U.S. Virgin Islands. To determine whether antibacterial activity varied across broad or local geographic scales, sponge extracts were tested against four bacterial strains …