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Spring 2015
In many applications, it is desired to separate unwanted fine particulates from a liquid by gravity settling. An efficient separation, however, will be feasible only if a combination of aggregation and sedimentation occurs. To understand the kinetics of such a process, a mathematical model that...
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Spring 2021
At different stages during the extraction of bitumen from the Athabasca oil sands, the removal of unwanted fine solids whether suspended in aqueous or non-aqueous liquids continues to present serious challenges to the oil sands industry. These fine solids are unique in that their colloidal...
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An experimental investigation of the impact of fat taxes: Price effects, food stigma, and information effects on economic instruments to improve dietary health
DownloadFall 2009
This thesis investigates how a tax and warning label on less healthy snack food products may affect consumer behaviour when the imposition of the tax is a source of consumer information. A survey that included choice experiments was implemented in supermarkets. Participants were asked to choose...
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Appetite-Regulating Hormones and Eating Behaviors in Children with Autism Spectrum Disorder
DownloadFall 2020
Autism Spectrum Disorder (ASD) is a complex neurodevelopmental disorder that involves deficits in social, behavioral, and communicative domains. As an increasing number of children are diagnosed with ASD, within Canada and globally, there has also been increased findings of higher rates of...
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Fall 2012
Glancing angle deposition (GLAD) is a physical vapour deposition (PVD) technique capable of fabricating highly porous thin films with controllable film morphology on the 10 nm length scale. The GLAD process is flexible and may be used on virtually any PVD-compatible material. This makes GLAD a...
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Fall 2012
This thesis explored the properties of asphaltene nano-aggregates in crude oil and toluene based solutions and fouling at process furnace temperatures, and the links between these two phenomena. The link between stability of asphaltenes at ambient conditions and fouling at the conditions of a...
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Spring 2012
The growing prevalence of overweight and obesity in adolescents is of great concern. The objective of this research was to assess the relationship between body mass index (BMI) and individual factors such as: dietary intake, physical activity and sedentary behaviours; and to assess the...
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Body Composition Assessment in Pediatric Obesity: Reliability, Validity, and Clinical Applications
DownloadFall 2020
Adipose tissue and skeletal muscle have unique metabolic roles. Despite body mass index for age and sex (BMI z-score) being historically widely used to evaluate and monitor health status in children with obesity, it does not depict adiposity and muscularity (or their changes) during growth or...
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Cardiovascular Disease Risk factors in Canadian-born and Immigrant Children and Youth in the Canadian Health Measures Survey
DownloadFall 2014
Immigrants make up almost 20% of Canada’s population. Recent adult immigrants to Canada are generally in better health than those born in Canada. However, we know little about whether this is also the case in children. We compared mean levels and prevalence of adverse levels of CVD risk factors...