Search

The article offers information on the Archives of Manitoba acquiring the personal, legal, business, and political records of John A. Macdonald, former Prime Minister of Canada, and his son Hugh John Macdonald. John served as the first Prime Minister of Canada for about nineteen years, while his son, Hugh, served as Premier of Manitoba for less than a year. Records related to John include materials from his legal practice in Kingston, Canada.

Introduction: Rural recruitment and retention continues to present challenges to health workforce planners. This paper reports and analyzes the results of a survey sent to physicians in Manitoba, eliciting their opinions regarding rural jobs. Methods: A survey was sent to all physicians in Manitoba. Part 1 of the survey included questions about background and demographic information; part 2 was a set of job satisfaction questions regarding respondents' current job; and part 3 included 2 sets of stated-choice questions eliciting preferences for a set of attributes relevant to rural recruitment and retention. Results: Of the 2487 physicians who received surveys, 561 (22.6%) responded. Respondents indicated that income, hours worked and on-call frequency are very important: overall job satisfaction increased with income and decreased with hours worked. Income, hours and on-call frequency were ranked "very important" by the largest proportions of physicians. The estimated compensation for on-call more frequent than 1-in-4 was very high (82% of average income), and additional hours worked were worth $183 per hour. Other attributes that were important included professional interaction, housing availability and community incentives during the first year, which were valued at 11%-31% of annual income. Conclusion: Work--life balance is a key consideration for rural jobs, and there are incentives that can compensate for less desirable attributes. . [ABSTRACT FROM AUTHOR]

There are a myriad of laws, regulations, and policies governing the operating weights and dimensions of trucks. In Canada and many northern states, these regulations form a continuum of basic limits, seasonal variations, and overweight/overdimension limits that are legally permitted. This paper deals with the seasonal aspects of weight limits (winter weight premiums and spring weight restrictions) governing trucking within and to and from the prairie region. This region encompasses Manitoba, Saskatchewan, and Alberta, and the northern tier states of Minnesota, North Dakota, and Montana. The paper presents results of research conducted for the transportation departments of the three prairie provinces and Public Works and Government Services Canada. It discusses existing winter weight premium and spring weight restriction regulations, as well as basic weight regulations in the region, and their technical rationale. It examines possibilities for using advanced technologies to help harmonize and rationalize seasonal truck size and weight regulations and enforcement practices, and identifies immediate opportunities for rationalization and harmonization of spring weight restrictions and winter weight premiums. [ABSTRACT FROM AUTHOR]

The use of fiber-reinforced composite materials for the construction and rehabilitation of civil engineering structures is relatively new. Structural members are routinely joined by bolted connections. Bolted connections are relatively easy to assemble and maintain, and are capable of transferring the high loads that typically occur in civil engineering structures. Currently there is a serious lack of knowledge on the behavior and design of bolted connections for fiber-reinforced composites. In light of this, a comprehensive experimental and analytical investigation was conducted at the University of Manitoba to study the behavior of bolted connections in composite materials appropriate for civil engineering applications. A total of 102 single-bolt connections were tested up to failure. The various parameters investigated were the width of the structural member, the edge distance, the thickness, and the direction of the fibers with respect to the applied load. The experimental program also included comprehensive material testing to determine the various in-plane material properties. This paper discusses the experimental program, test results, and various modes of failure as affected by the foregoing parameters. From the test results an analytical model and design procedure were developed as proposed in a companion paper. [ABSTRACT FROM AUTHOR]

In the 1920s some 3,800 Mennonites who had settled in Manitoba in the 1870s left their farms to migrate to the Bustillos Valley of northern Mexico. While conflict over education was the main stimulus for the move, this paper argues that the migration also offered an opportunity to restore the system of land tenure Mennonites had practiced in Imperial Russia. Conservative Mennonites had reified a tsarist-imposed system of semi-communal land tenure, making it a requirement of faithful religious and social practice. These sensibilities were, however, incompatible with the land tenure system of the new Dominion of Canada giving rise to tension and conflict. When migration became a reality, conservative Mennonites sought to reestablish the colony and village tenure system by seeking a block sale of their individual lands in Manitoba and by purchasing land in Mexico under colony title, thereby restoring semi-communal land tenure. [ABSTRACT FROM AUTHOR]

Abstract: This paper describes an algorithm that has been developed to process field data from two upward looking sonars, one high (546kHz) and one low (235kHz) frequency, a 2MHz current profiler and a monitoring station, to measure surface ice characteristics on the North Saskatchewan River in the north east of Edmonton, AB, Canada, during the 2009/2010 freeze-up season. The algorithm used to calculate pans/rafts drafts and lengths, and the surface ice concentration is described. The validity and the accuracy of this technique were tested and computed surface ice conditions are presented. For the purpose of examining the effects of hydro-meteorological conditions on measured pan characteristics, the freeze-up period was divided into three distinct stages depending on the measured surface ice concentration. Pan/raft drafts were found to range from 0.1 to 1.0m and pan/raft lengths from 0.6 to 8.0m. The sonar proved to be very accurate in detecting the exact surface ice conditions locally above the sonar beam. However, interpretation of the results can sometimes be challenging, especially when physical processes such as bridging affect local ice conditions. Therefore, additional visual observations (e.g. time lapse photography) of surface ice conditions are recommended to aid in the interpretation of sonar measurements. [Copyright &y& Elsevier]

Abstract: The Balloon-borne Experiment with a Superconducting Spectrometer (BESS) was flown from Lynn Lake, Manitoba, Canada in August, 2000, during the maximum solar modulation period, with an average residual atmospheric overburden of 4.3g/cm2. Precise spectral measurements of cosmic ray hydrogen isotopes from 0.178GeV/n to 1.334GeV/n were made during the 28.7h of flight. This paper presents the measured energy spectra and their ratio, 2H/1H. The results are also compared with previous measurements and theoretical predictions. [Copyright &y& Elsevier]

This paper has two purposes. First, it documents the historical context of MINCOME, a Canadian guaranteed annual income field experiment (1974 to 1979). Second, it uses routinely collected health administration data and a quasi-experimental design to document an 8.5 percent reduction in the hospitalization rate for participants relative to controls, particularly for accidents and injuries and mental health. We also found that participant contacts with physicians declined, especially for mental health, and that more adolescents continued into grade 12. We found no increase in fertility, family dissolution rates, or improved birth outcomes. We conclude that a relatively modest GAI can improve population health, suggesting significant health system savings. [ABSTRACT FROM AUTHOR]

This paper extends analyses of the declining social assistance participation rate in Canada since the mid-1990s using rich Manitoba administrative data for the period since 1999. We examine trends in Manitoba to mid-2008, separately analyze the entry and continuation rates, and include for the first time information about the growing number of adults with a disability on social assistance. Our results show that the declining participation rate is due entirely to a declining entry rate and that the continuation rate has actually risen since 1999, mainly because of the dramatic growth in the number of adults with a disability on social assistance but also because of the rising duration of spells on assistance by those without a disability. Our results raise questions about the policy, pursued in all jurisdictions in Canada, that keeps social assistance benefits low to discourage welfare use. [ABSTRACT FROM AUTHOR]

The Thompson Nickel Belt marks the boundary between the Archean Superior Province and the Trans-Hudson Orogen in Canada. It comprises Archean gneisses, and Paleoproterozoic rocks with metasediments and metavolcanites (Ospwagan Group) and intrusions. The gneisses are frequently migmatitic and host numerous pegmatites. The western belt boundary is a fault contact with the Kisseynew Domain of the Reindeer Zone. In the south, the transition zone between the belt and the Kisseynew Domain comprises granitoids and a detrital sequence (Grass River Group), part of which grades into turbidites in the Kisseynew Domain. The eastern belt boundary is a diffuse zone where the Archean east-west (E-W) structural trend changes into the north-northeast (NNE) trend of the belt. This paper presents U-Pb ages for granitoids and 207Pb/206Pb detrital zircon ages from the Ospwagan and Grass River groups. Ages and a comparison of events in the belt and in the eastern Reindeer Zone have major implications. The change from stable platform deposits to syn-tectonic filling and emplacement of mafic intrusions in the Ospwagan Group are attributed to the convergence between the Reindeer Zone and the Superior Province at 1891-1885 Ma. At ca. 1850 Ma, continuing convergence led to drowning of marginal basins of the Superior craton and to the development of a transpressive regime in the belt, the onset of which could be as old as ca. 1885 Ma. Metamorphic ages of 1818-1785 record closure of the Kisseynew basin and crustal thickening. Collision of the new continental block with the Superior Province was accommodated by transpression until 1750-1720 Ma. La ceinture de Thompson est située entre le Craton archéen du Supérieur et l'orogène paléoprotérozoïque du Trans-Hudson, au Canada. Elle comprend des gneiss archéens souvent migmatitiques, et des roches paléoprotéroïques, métasédiments et métavolcanites (Groupe Ospwagan), et intrusions. A l'ouest, une zone de faille marque le contact entre la ceinture et le domaine Kisseynew de la Zone de Reindeer. Vers le sud, cette zone de transition entre la ceinture et le domaine Kisseynew comprends des granitoïdes et une séquence détritique (Groupe Grass River), qui passe graduellement aux turbidites du domaine Kisseynew. Sur la bordure orientale de la ceinture, le grain structural E-W du Craton archéen se réoriente dans le grain NNE de la ceinture. Cet article présente des âges U-Pb pour différents granitoïdes et des âges 207Pb/206Pb pour les zircons détritiques des groupes Ospwagan et Grass River. Les âges et une comparaison des événements affectant la ceinture et l'est de la zone Reindeer ont des implications importantes. Dans le groupe Ospwagan, le passage de dépôts de type plate-forme à des dépôts syn-tectoniques, et l'intrusion de roches basiques, sont attribuées à la convergence entre la zone Reindeer et le Craton du Supérieur vers 1891-1885 Ma. Vers 1850 Ma, la convergence conduit à l'enfouissement des bassins de la marge du Craton et à un régime transpressif pouvant avoir débuté dès ca. 1885 Ma. La fermeture du bassin de Kisseynew et l'épaississement crustal sont enregistrés par des âges de métamorphisme entre 1818 et 1785 Ma. Le régime transpressif se poursuit jusqu'à ca. 1750-1720 Ma. [ABSTRACT FROM AUTHOR]

Abstract: An extensive research project is currently being carried out at the University of Manitoba, Canada, involving the development of glass fiber-reinforced polymer (GFRP) wind turbine towers. The towers consist of multi-cell segments, each segment constructed from eight filament wound cells jointed together with resin applied over their interface. The present paper mainly addresses the static and dynamic characteristics, such as failure static loads, modes of failure, fundamental frequencies and periods of such segmented composite towers. Both experimental and numerical results are presented. The experimental investigation involved the testing of two jointed scaled towers. These specimens had a total height of 4.88-m (16-ft) and were tested as cantilevers under static and dynamic loading. The testing was conducted at the W.R. McQuade Structural Engineering Laboratory of the University of Manitoba. Finally, finite element models were developed to analyze the structural behavior, static and dynamic, of single and multi-cell composite segments and towers. The results from the finite element models under static loading were validated through comparison with the experimental results. [Copyright &y& Elsevier]

Abstract: Blowing snow is a frequent and significant winter weather event, and there is currently a need for more observations and measurements of blowing snow, especially in arctic and subarctic environments. This paper is the second part in a two part series studying blowing snow in Churchill, Manitoba, and Franklin Bay, NWT. In this part, the development and use of a camera system to measure the relative blowing snow density profile near the snow surface is described. This system has been used, along with standard meteorological instruments and optical particle counters, during a field campaign at Franklin Bay, NWT. A best-fit to the mass density profile in the saltation layer is derived, assuming a half-normal distribution of the vertical ejection velocity of saltating particles. Within the saltation layer, the observed vertical profile of mass density is found to be proportional to the function exp(− 0.61z/h̄), where h̄ is the average height of the saltating particles. For the range of conditions studied, h̄ varies from 1.0 to 10.4 mm, while the extent of the saltation layer varies from 17 to over 85 mm. There is a weak correlation between h̄ and the square of friction velocity. There are weak negative correlations between h̄ and temperature and relative humidity. No correlation is seen between h̄ and the snow age. At greater heights, z >0.2 m, the blowing snow density varies according to a power law (ρ s ∝z − γ), with a negative exponent 0.5<γ<3. Between these saltation and suspension regions, results suggest that the blowing snow density decreases following a power law with an exponent possibly as high as γ≈8. [Copyright &y& Elsevier]

Abstract: Blowing snow is a frequent and significant winter weather event, and there is currently a need for more observations and measurements of blowing snow, especially in arctic and subarctic environments. This is the first paper in a two part series studying blowing snow in Churchill, Manitoba, and Franklin Bay, NWT. In this part, the development and use of a camera system to measure the shape, size and velocity of blowing snow particles is described. This system was used, along with standard meteorological instruments and optical particle counters, during field campaigns at Churchill, MB, which took place in March, 2005 and December, 2006. Measurements of blowing snow particle shape demonstrate that blowing snow particles are generally non-spherical, with an average ratio of the longest particle profile length to the perpendicular width of 1.41. Measurement of particle velocity with the camera system is shown to be inaccurate. However, measurements of particle number correlate well (r 2 =0.85) with simultaneous measurements made with a particle counter at the same height as the camera. The particle size distributions generally follow a Gamma distribution, with an average shape parameter of α =1.9. The shape parameter, α, shows no trend with height. The blowing snow particle number density decreases with height as approximately N ∝ z −1.4. The blowing snow particle number densities, interpolated to a height of 0.1 m, are in the range of 1.4×105 < N <4.7×107 m−3. Particle number densities are shown to generally increase over a limited range of wind speeds, corresponding to 10-m wind speeds in the range of 13< U 10 <17 m s−1. Over this range of wind speeds, the average particle size at a given height does not change significantly with wind speed. However, at a lower wind speed of U 10 ≈9 m s−1, the average particle size is generally smaller. Particle sizes generally decrease with height between 0.06 and 1 m. Above 0.2 m, the average particle diameters found in this study (120 µm< d―<154 µm) are similar to or generally larger than the range of sizes found in previous studies. Below 0.15 m, the average particle diameters in this study (103 µm< d―<172 µm) are similar to or generally smaller than the sizes found in previous studies. There is a large variation in the mean particle sizes of this and other studies, suggesting that particle sizes may be dependent on a number of other factors, such as upwind snow conditions and surface characteristics. [Copyright &y& Elsevier]

Although bridges were among the first civil engineering structures to use structural health monitoring (SHM) technologies, research is now expanding to explore other types of applications, including Manitoba's famous Golden Boy statue. Global research is identifying the value of using SHM technologies for civil engineering applications. Structural health monitoring uses a variety of sensors to gather information about the behaviour of a structure. The information creates a valuable knowledge base that can be analyzed to help identify potential structural risks, develop safer and more efficient new structures, and determine more effective ways to rehabilitate existing structures. This paper briefly describes the history of the Manitoba Legislative Building and the Golden Boy and also the use of SHM technologies to help preserve the Golden Boy statue, an icon of provincial heritage. [ABSTRACT FROM AUTHOR]

Discusses the abstract of the research paper 'First Report on the Presence of Leptosphaeria maculans Pathogenicity Group-3, the Causal Agent of Blackleg of Canola in Manitoba,' by W.G.D. Fernando and Y. Chen, and published in the October 2003 issue of 'Plant Disease.'

Presents an interview with Dr. Peter Warren, associate dean, undergraduate education at the University of Manitoba medical school. His most influential teacher; The research paper that has had the most influence on his career; The last book he read; The make and year of car he drives.