<p> Over the past decade public decision makers have become increasingly concerned with the potential impacts of their decisions upon values associated with fish resources. These impacts can often involve large-scale alternation of natural habitats. Recreation is an important use of the fisheries resource. Anglers in Ontario spent more than 43 million days engaged in sport fishing expending more than 650 million dollars within the Province in 1980 (Government of Ontario, 1980). This paper deals largely with conceptual methods of measuring the economic benefits of recreational fishing. It is intended to serve several purposes: to present a review of the economic evaluations of recreational fishing and to expand certain conceptual concepts of the subject. High priority steps that should be taken to develop appropriate fishing values which can be used in policy decisions are also presented.</p> / Thesis / Candidate in Philosophy

The Subject of this thesis is English/Teaching. / This project examines modem pedagogy in Ontario in the critical light of traditions established by Renaissance Humanist thinkers on education. From the Renaissance to the present day, the project highlights aspects and theories of education in the nineteenth century, with special emphasis on Mary Shelley's cautionary tale, Frankenstein. / Thesis / Master of Arts (MA)

<p> The primary purpose of this thesis is to provide an in-depth analysis of a political interest group. In doing so, some of the theoretical studies that attempt to explain why groups arise and why individuals freely join them have been empirically tested. It is noteworthy that most of the members surveyed would not renew their membership if the group stopped lobbying and only supplied "Selective incentives". </p> <p> The secondary purpose of this thesis is to contribute to the literature on the politicalization of health care. The Medical Reform Group of Ontario is a relatively small, yet highly politicized group of progressive doctors who want to make the health care system more democratic and preventative in nature. As far as the author knows, this is the first academic investigation of any kind into the Medical Reform Group. </p> <p> In carrying out these two purposes, it is argued that the Medical Reform Group is a product of social changes which took place in medical practice over the last decade and that, despite assumptions to the contrary, "rational men" will voluntarily join a political interest group to solely advance its political (or collective) goals. </p> / Thesis / Master of Arts (MA)

<p> Dofasco started producing steel on their Hamilton bayfront property around 1952. Much of the iron ore and coal required for their blast furnace operations was delivered by ship. Two Ore Bridges, probably fabricated in 1951 and in continuous service since, were used to unload the ships.</p> <p> On Tuesday March 28th, 1995 at approximately 8:40am, the No.2 Ore Bridge collapsed. </p> <p> At the time, the Ore Bridge appeared to be stationary. The operator was also not performing any specified operation. The collapse initiated with the failure of the tie-plate which keeps the Shear Leg from spreading at its base. The tie-plate is a critical member. As the structure contained no reasonable alternative load path for the tension in the tieplate, the failure of the tie-plate resulted in the collapse of the Ore Bridge. </p> <p> Initial calculations indicated there was no obvious structural overload that should have precipitated the catastrophic failure of the tie-plate. A metallurgical investigation of the tie-plate material was then initiated. </p> <p> The metallurgical investigation found the steel in the tie-plate was susceptible to brittle fracture at the approximate air temperature at the time of the collapse. Using a fracture mechanics approach it was concluded the failure of the tie-plate was the consequence of fatigue cracks initiating in corrosion pits on the underside of the plate, along the toe of the reinforcing fillet weld connecting the tie-plate to the rocker block. The fatigue cracks grew and combined until they created a flaw which reached a critical dimension, allowing a brittle fracture to initiate and run rapidly across the width of the plate. </p> <p> Over the years, the Ore Bridges have seen several alterations which increased the tension load in the tie-plate. In 1968 the apron was extended. In 1975 the trolley payload was increased. In 1990, increases in dead weight on the main span were recognised. </p> <p> In 1990 however, Dofasco also modified their method of handling iron ore pellets on the bayfront, which required the addition of a hopper into the Shear Leg of the Ore Bridges. The addition of the hopper was critical, as it created unbalanced lateral loadings on the sill truss which were cyclical in nature. The hopper forced the tie-plate to resist these lateral loads by bending horizontally, a loading condition for which it was not originally designed. The cyclic bending stresses resulting from the addition of the hopper led directly to the failure of the tie-plate and the resulting collapse of the No.2 Ore Bridge. </p> / Thesis / Master of Engineering (ME)

No description available.

Note:

Thesis (M.C.P.)--Massachusetts Institute of Technology, Dept. of Urban Studies and Planning; and, (M. Arch. in Advanced Studies)--Massachusetts Institute of Technology, Dept. of Architecture, 1980. / MICROFICHE COPY AVAILABLE IN ARCHIVES AND ROTCH. / Bibliography: leaves 179-184. / by Mohamed Iqbal Hoosen. / M.C.P.

No description available.

Research for a dissolved nitrogen budget was conducted at Mer Bleue bog near Ottawa, ON, from May 20, 2003 to May 21, 2004. Mer Bleue is located within an area experiencing the highest levels of atmospheric nitrogen deposition in North America, although these levels are only low to moderate compared to those in Europe. Continuous measurements of precipitation, evapotranspiration, bog water table level and outflow water depth were used in conjunction with discrete measurements of precipitation and outflow to determine the hydrologic budget. Water samples were taken from precipitation collectors, piezometers at various depths and locations throughout the bog, and an outflow point in order to gauge changes and patterns in chemical concentrations at various points throughout the bog. The nature of the bog morphology and landscape allowed for collection of water samples from a single outflow point. / Chemical analysis combined with the water budget revealed that the majority of the dissolved nitrogen is entering the bog as NO3-N and NH 4-N (inorganic nitrogen), and leaving the bog as dissolved organic nitrogen (DON). Export of nitrogen was generally low relative to the input, and was only a very small fraction of the huge amount of nitrogen stored in the bog. Bog porewater concentrations were dominated by DON and did not show spatial patterns in relation to the bog edge. When comparing the annual accretion of nitrogen at the bog to the long-term storage numbers, it was apparent that there is a missing source of nitrogen. From the literature and patterns in the bog, it appears that this missing input at Mer Bleue is likely due to a combination of previously unmeasured nitrogen fixation and more diverse usage of DON by bog vegetation.

The intent of this study was to gain an appreciation for the experiences of mothers whose parental rights have been permanently severed through child welfare court orders of Crown Wardship with No Access. The study utilized an explorative, qualitative design approach and included semi-structured, in-depth interviews with four women. Participant text and found poetry presented the voice of mothers, something not often the focus in the child welfare literature. Themes of betrayal, loss, anger, and disenfranchised grief were reported in the research findings. The role of the social worker emerged as an important factor influencing the mothers. This study found that mothers need acknowledgment for their losses and support for their grief. Consideration for social work implications and further research are also discussed.