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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
41

Structural health monitoring of the Traffic Bridge in Saskatoon using strain gauges

MacLeod, Alison Barbara 15 April 2011 (has links)
The steel through-truss Traffic Bridge, located in Saskatoon, Saskatchewan is over one hundred years old. The bridge has been subject to ongoing maintenance throughout its service life. However, inspection reports from 2005 and 2006 highlighted the severe deterioration experienced primarily by the steel members immediately above and below the deck surface. These reports prompted the City of Saskatoon (COS) to implement a rehabilitation project that involved the installation of a post-tensioning system to relieve the badly corroded bottom chord members of the axial loads due to the self-weight of the structure, in 2006. Due to the severe deterioration and the structural modifications that the Traffic Bridge has endured, a limited scope structural health monitoring (SHM) system, based on strain measurements, was implemented to reduce some of the uncertainty regarding the active load paths occurring at the deck level. The objectives of the SHM study were to obtain more information regarding the actual load paths and ascertain possible types of structural redundancy, to determine how to best model this type of structure, and to find ways to track ongoing deterioration using instrumentation. The SHM study involved controlled truck loading scenarios to permit measurement of the load paths and provide data to compare the measured results to a finite element (FE) model of the instrumented span. In addition, random loading scenarios were used to capture the vertical dynamic response of the structure in order to further refine the FE model. This study focused on the response of one-half of one interior span. A total of 72 strain gauges were installed. The downstream truss was highly instrumented at ten locations, three members of the upstream truss were instrumented to measure the distribution, and the floor joists in the downstream lane were instrumented to establish possible redundancy paths. Using an FE model in combination with the measured strain data, it was found that redundant load paths only existed at the level of the deck. The bottom chord members experienced non-zero strains once the control vehicle was past the span, possibly indicating some level of redundancy. The members believed to relieve a portion of the bottom chord tensile forces included the car joists, edge joists, and the timber deck. The amount of force transferred from the bottom chord to the deck members was found by FE analysis to be highly related to the lateral stiffness of the floor beams. The FE model was adjusted to match the measured results by modifying various modelling parameters. The most important features of the model were that all deck elements were modelled to be located at the elevation of the bottom chord, that the lateral stiffness of the floor beams was reduced by 50% to best represent the transfer of forces to deck elements, and that the stiffness of bottom chord members was reduced to 80% of their pristine values. In combination with calibrated modification factors applied to the measured values, this FE model is believed to be a useful tool to represent the behaviour of the structure to assist in detecting further damage by modelling the strain differential between members, and components of members.
42

Flavonoids in Saskatoon Fruits, Blueberry Fruits, and Legume Seeds

Jin, Lihua Unknown Date
No description available.
43

Developing a "presence" view of communion at Lawson Heights Pentecostal Assembly, Saskatoon, Saskatchewan

Puls, David William. January 1900 (has links)
Thesis (D.W.S.)--Institute for Worship Studies, 2006. / Abstract. Includes bibliographical references (leaves 177-193).
44

Serviceberry: Potential North Dakota Accessions for the Nursery Industry

Hinrichsen, Jorden January 2017 (has links)
Saskatoon serviceberry (Amelanchier alnifolia Nutt.) is an ornamental Rosaceous shrub producing delicate white flowers that yield fruit similar in appearance and nutrition to blueberry (Vaccinium spp.). Most serviceberry are propagated in Canada and, as imported stocks are often expensive, clones were accessed from 70 locations in North Dakota. Following establishment, a replicated field trial of wild biotypes of serviceberry was initiated at the North Dakota State University Horticulture Research Farm (NDSU HRF) near Absaraka, ND and at the Williston Research and Extension Center (WREC) in Williston, ND. Yield data was taken upon harvest in summers 2014-2017 at NDSU HRF and 2016 at WREC. ND 1-2, ND 1-4, ND 1-6, ND 1-7, ND 48-2 often out-yielded market genotypes. ND 15-2 was high in sugar content and gelling ability, ideal for processing. Through continued selection, North Dakota growers may have quality serviceberry from a local source.
45

"We Have Never Allowed Such A Thing Here...": Social Responses to Saskatchewan's Early Sex Trade, 1880 to 1920

2013 August 1900 (has links)
Despite what the title suggests, Saskatchewan had a booming sex trade in its early years. The area attracted hundreds of women sex workers before Saskatchewan had even become a province in 1905. They were drawn to the area by the demands of bachelors who dominated Canada's prairie west. According to Saskatchewan's moral reformers, however, the sex trade was a hindrance to the province's Christian potential. They called for its abolishment and headed white slavery campaigns that characterized prostitution as a form of slavery. Their approach stood in contrast with law enforcement's stance on the trade. The police took a tolerant approach, allowing its operation as long as sex workers and their clients remained circumspect. Law enforcement's approach reflected their own propensity to use the services of sex workers as well as community attitudes toward the trade. Some communities were more welcoming of sex workers, while others demanded that police suppress the trade. Saskatchewan's newspapers also reflected differing attitudes toward the trade. While Regina's Leader purveyed a no tolerance view of the sex trade, Saskatoon's Phoenix and Star held more tolerant views. Saskatchewan's newspapers reveal that as the province's population increased and notions of moral reform gained popularity, police were challenged to take a less tolerant approach. However, reformers' efforts to end the sex trade dwindled with the onset of the First World War and attitudes toward sex workers shifted drastically as responsibility for venereal disease was placed largely on women who sold sex. Using government and police records, moral reform and public health documents, and media sources such as newspapers, as well as intersectional analysis of gender, race, class, and ethnicity, this examination of Saskatchewan’s sex trade investigates the histories and social responses to the buying and selling of sex, revealing the complex and, at times, contradictory place of sex workers and the sex trade in Saskatchewan’s early history.
46

Structural health monitoring the Traffic Bridge in Saskatoon using strain gauges

MacLeod, Alison Barbara 12 April 2011
The steel through-truss Traffic Bridge, located in Saskatoon, Saskatchewan is over one hundred years old. The bridge has been subject to ongoing maintenance throughout its service life. However, inspection reports from 2005 and 2006 highlighted the severe deterioration experienced primarily by the steel members immediately above and below the deck surface. These reports prompted the City of Saskatoon (COS) to implement a rehabilitation project that involved the installation of a post-tensioning system to relieve the badly corroded bottom chord members of the axial loads due to the self-weight of the structure, in 2006. Due to the severe deterioration and the structural modifications that the Traffic Bridge has endured, a limited scope structural health monitoring (SHM) system, based on strain measurements, was implemented to reduce some of the uncertainty regarding the active load paths occurring at the deck level.<p> The objectives of the SHM study were to obtain more information regarding the actual load paths and ascertain possible types of structural redundancy, to determine how to best model this type of structure, and to find ways to track ongoing deterioration using instrumentation. The SHM study involved controlled truck loading scenarios to permit measurement of the load paths and provide data to compare the measured results to a finite element (FE) model of the instrumented span. In addition, random loading scenarios were used to capture the vertical dynamic response of the structure in order to further refine the FE model.<p> This study focused on the response of one-half of one interior span. A total of 72 strain gauges were installed. The downstream truss was highly instrumented at ten locations, three members of the upstream truss were instrumented to measure the distribution, and the floor joists in the downstream lane were instrumented to establish possible redundancy paths.<p> Using an FE model in combination with the measured strain data, it was found that redundant load paths only existed at the level of the deck. The bottom chord members experienced non-zero strains once the control vehicle was past the span, possibly indicating some level of redundancy. The members believed to relieve a portion of the bottom chord tensile forces included the car joists, edge joists, and the timber deck. The amount of force transferred from the bottom chord to the deck members was found by FE analysis to be highly related to the lateral stiffness of the floor beams.<p> The FE model was adjusted to match the measured results by modifying various modelling parameters. The most important features of the model were that all deck elements were modelled to be located at the elevation of the bottom chord, that the lateral stiffness of the floor beams was reduced by 50% to best represent the transfer of forces to deck elements, and that the stiffness of bottom chord members was reduced to 80% of their pristine values. In combination with calibrated modification factors applied to the measured values, this FE model is believed to be a useful tool to represent the behaviour of the structure to assist in detecting further damage by modelling the strain differential between members, and components of members.
47

Structural health monitoring the Traffic Bridge in Saskatoon using strain gauges

MacLeod, Alison Barbara 12 April 2011 (has links)
The steel through-truss Traffic Bridge, located in Saskatoon, Saskatchewan is over one hundred years old. The bridge has been subject to ongoing maintenance throughout its service life. However, inspection reports from 2005 and 2006 highlighted the severe deterioration experienced primarily by the steel members immediately above and below the deck surface. These reports prompted the City of Saskatoon (COS) to implement a rehabilitation project that involved the installation of a post-tensioning system to relieve the badly corroded bottom chord members of the axial loads due to the self-weight of the structure, in 2006. Due to the severe deterioration and the structural modifications that the Traffic Bridge has endured, a limited scope structural health monitoring (SHM) system, based on strain measurements, was implemented to reduce some of the uncertainty regarding the active load paths occurring at the deck level.<p> The objectives of the SHM study were to obtain more information regarding the actual load paths and ascertain possible types of structural redundancy, to determine how to best model this type of structure, and to find ways to track ongoing deterioration using instrumentation. The SHM study involved controlled truck loading scenarios to permit measurement of the load paths and provide data to compare the measured results to a finite element (FE) model of the instrumented span. In addition, random loading scenarios were used to capture the vertical dynamic response of the structure in order to further refine the FE model.<p> This study focused on the response of one-half of one interior span. A total of 72 strain gauges were installed. The downstream truss was highly instrumented at ten locations, three members of the upstream truss were instrumented to measure the distribution, and the floor joists in the downstream lane were instrumented to establish possible redundancy paths.<p> Using an FE model in combination with the measured strain data, it was found that redundant load paths only existed at the level of the deck. The bottom chord members experienced non-zero strains once the control vehicle was past the span, possibly indicating some level of redundancy. The members believed to relieve a portion of the bottom chord tensile forces included the car joists, edge joists, and the timber deck. The amount of force transferred from the bottom chord to the deck members was found by FE analysis to be highly related to the lateral stiffness of the floor beams.<p> The FE model was adjusted to match the measured results by modifying various modelling parameters. The most important features of the model were that all deck elements were modelled to be located at the elevation of the bottom chord, that the lateral stiffness of the floor beams was reduced by 50% to best represent the transfer of forces to deck elements, and that the stiffness of bottom chord members was reduced to 80% of their pristine values. In combination with calibrated modification factors applied to the measured values, this FE model is believed to be a useful tool to represent the behaviour of the structure to assist in detecting further damage by modelling the strain differential between members, and components of members.
48

Health care and reference to Vietnam: experiences of immigrants and refugees in Saskatoon

2015 June 1900 (has links)
This thesis focuses on the experiences of Vietnamese immigrants and refugees in accessing health care services in Saskatoon. Within Canada, terms such as immigrant and refugee are assigned to reflect the differing circumstances that “newcomers,” i.e. foreign-born residents, arrive under, who are typically classified as either temporary or permanent residents (Gushulak et al. 2011). Research has suggested that newcomers to Canada from non-European countries tend to under-utilize health services (Curtis and MacMinn 2008; Luu, Leung and Nash 2009; O’Mahony and Donnelly 2007; Whitley, Kirmayer and Groleau 2006), while language and cultural differences are cited as barriers to health care (Asanin and Wilson 2008; Gushulak et al. 2011; Kirmayer et al. 1996). Qualitative health research regarding Vietnamese immigrants and refugees in Saskatchewan is currently lacking. The purpose of this study was to elicit a deeper understanding of experiences in accessing health care services through open-ended interviews. A total of 14 interviews were conducted regarding the health care experiences of members of the Vietnamese community in Saskatoon. The aim was to examine the possible socio-cultural determinants affecting the experiences of this study’s participants, to explore whether or not these determinants resulted in health care under-utilization, and to determine areas for future research, particularly, in working to resolve barriers to care for immigrant and refugee groups. Participants iterated the challenges that newcomers face in accessing health care, such as language, cultural, geographical, and socio-economic differences, as identified within the literature. However, the most elaborate responses given by the Vietnamese-born participants in this study were built around references to Vietnam (their country of origin). In particular, they described their experiences in Saskatoon through comparisons of health care and larger socio-economic circumstances in Vietnam. While participants described both positive and negative experiences, the consensus was that health care is generally better in Canada than in Vietnam. This thesis illustrates the value of examining the participants’ descriptions of Vietnam in understanding their experiences with health care in Saskatoon. These findings contribute to a contextual understanding of the socio-cultural determinants affecting the experiences of immigrants and refugees. I follow previous research studies to suggest that the cross-cultural contexts of health and illness need to be continually explored in health research regarding immigrants and refugees.
49

ARE PEOPLE RESPONSIVE TO WATER RATIONING POLICIES?

2015 September 1900 (has links)
It is difficult for policymakers to predict the behavior of people in response to a water rationing policy. The public may not necessarily behave as expected or in accordance with market rules or policy mandates. In this research, I will ask whether people were responsive to a summer 2011 City of Saskatoon legal restrictions to reduce their outdoor water consumption due to reduced capacity at the water treatment plant resulting from excessive solids in the river water. I will try to explore the policy response - which can be expressed as a reduction of outdoor water consumption in 2011 in response to the water mandate - while holding constant other factors, including environmental variables (temperature and rainfall), socio-economic factors (income and education level), lot size, and an annual downward trend in water consumption that appeared in many North American cities during the past two decades. Monthly water consumption data for the period from 2004 to 2012 for the City of Saskatoon were analyzed to detect if there is a policy response from the water mandate during June and July 2011. Regression analysis with water consumption as the dependent variable and lot size, temperature, rainfall, education index, income, consumption trend, and policy as independent variables was conducted to test whether there is a policy response in the Saskatoon water records, holding other factors relevant to water consumption constant. Results showed there was a statistically significant reduction in Saskatoon water consumption during June and July 2011 as a result of the water rationing mandate, with considerable variations through different neighborhoods. In addition, there is a positive relationship between water consumption and lot size and a reduction in water consumption over the research period from 2004 to 2012. The policy response varied widely across neighborhoods, and there was relationship between policy and annual income per capita, and household size; households with more income per capita are less responsive to the policy while bigger household sizes showed more policy responsiveness. Key words: City of Saskatoon, water rationing, water policy, water mandate, outdoor water use.
50

Impact of alternative payment plans on professional equity and daily distress of physicians

2014 December 1900 (has links)
The way physicians are paid for the provision of care is a relevant aspect of health care systems. Fee-for-service (FFS) payment system has been criticized for affecting quality of care, contributing to the fragmentation of health care, and for rising costs of health care systems. Alternative payment plans (APP) have been introduced as options to the traditional FFS payment scheme. Despite the link between payment methods and behavior of physicians that has been established; there is a lack of evidence about the impact of payment systems on wellness of physicians, specifically on their perception of professional equity and daily distress of physicians. The purpose of this study was to explore the effects of APP on physicians’ perceptions of professional equity and daily distress. The following questions guided this dissertation: 1) Does professional equity perceived by physicians vary among practitioners paid by FFS, APP, or blended alternatives? 2) Is the payment method associated with daily distress of medical practitioners? and 3) Are levels of professional equity, daily distress, and career satisfaction of physicians different by gender and payment methods? In 2011, a cross-sectional study was conducted with physicians practicing in the Saskatoon Health Region (SHR), the largest health authority of Saskatchewan, Canada. Physicians completed a questionnaire evaluating their perceptions of professional equity and daily distress. Analyses of variances (ANOVA) were performed to assess differences in professional equity (overall and by its fulfillment, financial, and recognition dimensions) and daily distress among physicians paid by FFS, APP, and blended schemes. As multivariable analyses, a linear regression was used to test the interaction between specialty and payment methods on the perception of professional equity, controlling for the number of patients, gender, and age group. A mixed linear regression model was built to predict daily distress, testing demographics, workload, complexity of patients, payment method, career satisfaction, and practice profile; the random component of the model considered the influence of geographic area of practice. Also, a multivariate analysis of variance (MANOVA) was conducted to evaluate differences among professional equity, daily distress, and career satisfaction by payment method and gender. In total, 382 (48.1%) physicians participated in the study. Response bias was tested and found to be negligible (Appendix F). The ANOVA identified that physicians paid by APP perceived higher professional equity than those paid by FFS (p=0.005), as well as higher levels of income (p=0.03) and recognition (p=0.001) equity than those with FFS. In the multivariable analyses, a higher level of professional equity was predicted among family practitioners (FPs) paid by APP and blended schemes in comparison to those paid by FFS. Additionally, the payment method was a predictor of daily distress when adjusted by other factors. Lower levels of distress were found among physicians who had more than 75% of patients with complex conditions and were paid by APP compared to those paid by FFS and blended methods. The MANOVA identified that female physicians had poorer wellness indicators than male practitioners. Multiple comparisons identified higher levels of equity among male physicians paid by APP than those with FFS, although this benefit was not observed among female ones. In conclusion, physicians paid by APP perceived higher professional equity (fair economic rewards and appropriate recognition) in comparison to those paid by FFS. Particularly, FPs paid by APP perceived higher professional equity than those FPs paid by FFS. Additionally, the payment method was identified as an associated factor with distress; lower levels of daily distress were predicted among physicians paid by APP who see high proportions of patients with complex conditions. Notwithstanding, female physicians had poorer wellness indicators and the impact of APP on professional equity was only distinguished among males. A potential unequal impact of APP must be recognized between female and male physicians.

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