Results

A collection of graduate theses by UPEI masters and doctoral students.

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To secure the safety of international trade of animal and their derived products, it is required that animals should be proven infection-free using a validated diagnostic test certified by the World Organization for Animal Health (OIE). Test validation involves a multi-step evaluation process to as...
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There are currently four invasive tunicate species which are causing significant challenges to the aquaculture industry in Atlantic Canada: Ciona intestinalis, Styela clava, Botryllus schlosseri and Botrylloides violaceus. These tunicates foul mussel socks, aquaculture gear, boat hulls and wharves. ...
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There is limited scientific information on relationships among smallholder dairy group membership duration, sustainable livelihoods, food and nutrition security in developing countries, and whether nutrition education of women dairy farmers enhances the nutritional benefits of being a dairy group me...
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The objectives of this thesis were: 1) to determine which factors and biological samples were associated with the estimated amount of total arsenic (As) consumed from water and food; 2) to determine which factors were associated with the concentration of total and speciated As ([As]) in urine; 3) to...
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The Newfoundland and Labrador (NL) aquaculture industry is a major contributor of salmon products that help meet protein needs for the world’s growing population. The industry in NL continues to grow and evolve and now includes emerging species in its production such as Atlantic cod. In a growing ...
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The Atlantic Canadian aquaculture industry is dominated by Atlantic salmon production. In recent years, infectious disease, parasitic infestations, and price fluctuations from international competition have caused disruptions to the industry. Diversification of the industry away from Atlantic salmon...
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Syndromic surveillance is a tool for continuous, automated extraction of surveillance information from health data sources. The research documented in this dissertation aimed at exploring informatics and data mining tools in order to develop and implement techniques to harvest additional surveillanc...
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The host parasite system of the MSX parasite, Haplosporidium nelsoni, in the eastern oyster, Crassostrea virginica, poses many challenges for experimental study. The interactions that are involved in the development of the typically high prevalence and intensities of disease encountered in certain e...
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Natural products have long been recognized for their medicinal value in traditional medicine and remain an important component of modern drug discovery. Known for their immense structural diversity, natural products are secondary metabolites that often exhibit unique pharmacological properties. In t...
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Effective control of parasitic sea lice (including Lepeophtheirus salmonis and Caligus elongatus), is a major challenge currently facing sea cage salmon aquaculture. Emamectin benzoate (EMB; SLICE®), a macrocyclic lactone (ML), has been the drug of choice for sea lice treatment over the past decade...
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Alcyonacean octocorals (Order Alcyonacea, amended from Order, Gorgoniidae) are both dominant on Caribbean reefs and prolific sources of bioactive natural products. Although extensive literature has been published with respect to stony coral-associated bacteria, very little is known regarding bacteri...
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The field of fungal taxonomy has been enduring in recent years due to the progress and application of molecular tools used in concert with morphological analysis. The fungal kingdom is extremely diverse and estimated to include 1.5 million species. Only 11% of these fungi are currently described in ...
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Obesity has become an increasingly common health condition over the last several decades. It has been estimated that this largely preventable disease affects over one billion people worldwide and that its prevalence will have doubled by the year 2030. Currently, obesity is the leading cause of preve...
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Marine invertebrates, including octocorals, are a prolific source of marine natural products (MNPs) and are also known to host diverse microbial communities. It is well-established that marine microbes are producers of bioactive secondary metabolites. Accordingly, it is hypothesized that bioactive m...
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The American lobster (Homarus americanus) is the most economically significant commercial fishery species in Canada. The Canadian lobster fishery provides tens of thousands of jobs, and is the economic driver of hundreds of rural communities in Atlantic Canada and Quebec. The adult lobster is suscep...
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Allergic diseases are a major medical concern with increasing prevalence in the world. Inflammation is one of the hallmarks of allergic diseases. Long chain n-3 polyunsaturated fatty acids (PUFAs) have been shown to inhibit allergic inflammation, but their direct effect on activation of the mast cel...
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The purpose of this research was to evaluate herd and cow-level Mycobacterium avium subspecies paratuberculosis (MAP) diagnostic tests within non-infected and low to moderate within-herd prevalence MAP-infected herds. Specific objectives were to estimate herd-level sensitivity and specificity of env...
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Approximately 60% of human pathogens and emerging infectious diseases are zoonotic. Simulation models are increasingly being used to investigate the spread of diseases, evaluate intervention strategies and guide the decisions of policy makers. In this thesis a systematic review of modeling methods a...
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Mast cells are crucial effector cells in host defense and immunoregulation. They are equipped with an impressive array of receptor systems which allows them to rapidly respond to pathogen-associated signals. G protein-coupled receptors (GPCRs) mediate mast cell activation and mediator release in res...
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Following stroke, impairments in arm function are common motor deficits in survivors, affecting thousands of people each year. A useful technique used in clinical rehabilitation of patients with arm impairments is to force use of the impaired arm through constraint of the unaffected (or less affecte...
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Neuropsychiatric disorders affect a significant number of people across the globe and are a serious economic and social burden. As a class of diseases they are often poorly understood, difficult to treat, and can lead to a significant decline in normal function and quality of life. Recent evidence s...
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An in vitro comparison of the osteogenic potential of equine stem cell populations and subpopulations from multiple tissue sources was made to identify the ideal equine donor tissue as a source of MSCs to promote bone healing. Equine muscle tissue– and periosteal tissue–derived cells where chara...
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As an alternative to blanket dry cow therapy (BDCT), selective dry cow therapy (SDCT) is considered a more judicious approach to antimicrobial use for the purpose of mastitis control during the non-lactating period. The purpose of this research was to evaluate the utility of a 3M Petrifilm-based on-...
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One of the major limitations of the use of optoacoustics (OA) for the imaging of prostate cancer is the relatively low resolution when performed in real time. The work presented in this thesis aims to address this limitation by applying frequency-based analyses, which contribute additional informati...
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Natural products and their mimics have a high probability of engaging with biological targets. Hence, natural products have historically been a valuable source of medicines. They continue to inspire the synthesis of biologically relevant compound libraries, useful for drug discovery. Over 50 % of th...