<p> This paper discusses real estate activity in Hamilton, for the period 1973 - 80, in an attempt to identify predictors. Particularly of interest is activity in the older central city neighborhoods which have been declining for a number of years. After reviewing the literature on the inner city, and the process operating in it, the Hamilton situation is explored. Seventeen census tracts emerge from the analysis as experiencing reinvestment activity during the above time period. The characteristics which are predictive, and most distinct, deal with the housing in, and location of, the census tracts. Socio-economic characteristics are neither predictive nor significant, for the most part. </p> / Thesis / Bachelor of Arts (BA)

No description available.

<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)

Aspergillus fumigatus is an opportunistic fungus known to cause a group of life-threatening infections collectively known as aspergillosis. In this thesis, multilocus sequence and microsatellite markers, among others, were used to study global and local A. fumigatus population structures. We examined the roles of sexual and asexual reproduction in the initiation of azole resistance globally. Furthermore, we investigated the origin of multi-triazole resistance in India and whether the use of fungicides on farms propagates resistance in environmental strains of clinical importance in Hamilton, Ontario. We characterized for the first time the A. fumigatus population in Cameroon while concomitantly screening for environmental resistance. Our results showed that sexual reproduction plays a key role in the development of triazole resistance globally. We found that multi-triazole resistance in India has multiple origins, which include mutational, recombinational and exotic origins. Our results provided little to no evidence that azole fungicides are the origin, or increase the frequency of triazole resistance in clinical A. fumigatus in Hamilton. Additionally, we identified a significantly unique A. fumigatus population in Cameroon. Our findings will potentially contribute towards developing effective long-term management strategies against aspergillosis. / Thesis / Doctor of Philosophy (PhD) / Aspergillus fumigatus is a mold capable of causing severe infection in humans. Infections caused by A. fumigatus can often be treated using antifungals. However, there have been several reported cases of treatment failure around the world over the last two decades. Generally speaking, treatment failure in patients is often associated with antifungal resistance in A. fumigatus. My thesis aims at better understanding the distribution and investigating the origin of resistance in A. fumigatus at both global and local levels. Here, we analyze A. fumigatus strains from 15 countries, including strains from Hamilton, Ontario. Our findings will potentially contribute towards establishing effective long-term management strategies against A. fumigatus infections locally and globally.

This thesis focuses on the lithic assemblage of a fortified Late Prehistoric site (AD 1260-1440) in Strawtown, Indiana, that was inhabited by the Oneota, a culture that migrated from their core area in Wisconsin, Iowa, and Illinois to other Midwestern locales such as Missouri, Nebraska, Indiana, Minnesota and Michigan (Theler and Boszhardt 2006: 435) . The types of lithic materials that they were using give insights into mobility, trade, and exchange for this unique group in central Indiana. Research centered on three questions:  What lithic raw materials are present in the two Taylor Village collections?  How might the Oneota at Taylor Village have acquired these lithic raw materials?  What might exotic lithic materials tell archaeologists about trade and exchange in the Late Prehistoric period of Indiana? The primary methods used in this research include literature review and macro- and microscopic methods for identifying chert types to determine where the Oneota were traveling to obtain their raw materials. Research from this thesis contributes to information about the Strawtown locality where multiple cultures were living in close quarters; in addition it contributes to Oneota literature where almost nothing is written about the Oneota in Indiana; this data may provide information about how and why they migrated into central Indiana in the Late Prehistoric period and potentially where they migrated from. / The Oneota -- Taylor Village -- Methods -- Raw material acquisition -- Data -- Discussion -- Summary and recommendations. / Department of Anthropology

No description available.

No description available.

Doctor en Ciencias de la Ingeniería, Mención en Modelación Matemática / El objetivo de esta Tesis es analizar el espectro de un operador Hamiltoniano definido en la red hexagonal del grafeno. Se describen completamente las regiones donde las soluciones son acotadas y no acotadas, se define una base que permite determinar las soluciones en toda la red hexagonal y se estudia el soporte de ciertas funciones definidas en esta red. / Este trabajo ha sido parcialmente financiado por Becas Conicyt, el Centro de Modelamiento Matemático (CMM) y el Instituto de Ciencias Matemáticas (ICMAT)

In this study, options for restoring fish populations in Hamilton City (37.47'S, 175.19'E) were explored. Habitat and fish populations in Hamilton urban streams were manipulated using a two-fold experimental design. Firstly, habitat was enhanced in ten urban streams with three continuous treatments in a 60-m reach at each site (20 m with 10 ponga logs, 20 m with 20 hollow clay pipes, and 20 m with no added structure). Secondly, juvenile farm-reared giant kokopu (Galaxias argenteus), were stocked into five of the enhanced stream sections. Giant kokopu are threatened and occur naturally in Hamilton urban streams in sparse populations. The abundance of wild fish was monitored before and after enhancement and fish release from November 2006 to November 2007. Stocked fish were monitored for eight months, from April to November 2007. Over this time electric fishing was conducted three times, trap nets (Gee minnow and fyke nets) were set monthly and spotlighting was conducted monthly at three release sites where water clarity allowed. Anticipated outcomes of this research were; to determine whether giant kokopu abundance in Hamilton urban streams is limited by recruitment or by habitat, and to assist with the development of methods to restore fish populations in Hamilton City urban streams. Logs used as enhancement structures in Hamilton urban streams provided more stable habitat for fish and created more suitable microhabitat than pipe structures. Pipes moved considerably during high flows, and their instability made them less effective at providing habitat. Within the study sites there appeared to be complex interactions with turbidity, stream width and depth, which complicated the effect of the habitat structures. The limited replication and variability among sites contributed to statistically insignificant results using analysis of variance. Retention and recapture rates of stocked juvenile giant kokopu were greatest at Site M11, where the stream was narrow, shallow, clear and had lower numbers and biomass of shortfin eels, compared to other survey sites. Marked and released giant kokopu were retained in the release reaches at four of the five sites, for a minimum of four months, and exhibited substantial growth. Daily growth of juvenile giant kokopu ranged from 0.19 to 0.33 mm day-1 and from 0.03 to 0.11 g day-1, exhibiting substantial growth over winter. Giant kokopu appeared to have a slight bias to the log section of enhanced habitat, but habitat selection appeared to be overwhelmingly controlled by initial habitat selection. The stocking of farm-reared fish into urban streams was largely successful, but the success of the habitat enhancement was variable and further work is required to determine better techniques for habitat enhancement in these urban environments. It is concluded that releasing farm-reared giant kokopu can be used to restore populations especially where recruitment limitations control fish abundance and diversity.

Texte remanié de: Diss. Ph.D.--University of North Carolina, 1999. Titre de soutenance : "Ashes of greatness" : politics and reputation in the antebellum world of James Hamilton. / Bibliogr. p. 271-286. Index.