663 research outputs found
The European roots of Canadian identity
No full text"What makes Canada a different kind of society from the United States? In this book-length essay, Philip Resnick argues that, in more ways than one, Canada has been profoundly marked by its European origins. This is most apparent where the European historical underpinnings both of English-speaking and French-speaking Canada are concerned, but it is no less true when one examines Canada's multiple national identities, robust social programs, increasingly secular values, and multilateral outlook on international affairs today. As the war in Iraq brought home, and the 2004 federal election reinforced, Canada is a more European-type society than is our neighbour to the south." "The author argues that Canada needs Europe as an effective counter-weight to the influence of the United States. He further argues that, at a deeper existential level, Canadians need relevant European references to better understand what makes them the kind of North Americans that they are."--BOOK JACKET
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A cost-effective comparison between a multipurpose water resource project and a group of equally effective water resource projects proposed for Arcadia Wash watershed, Tucson, Arizona
No full textThe cost-effective method is utilized for comparing a multipurpose water resource design with a group of equally effective single-purpose designs in the floodplain of Arcadia Watershed in Tucson, Arizona. The multipurpose water resource design is an integrated water-related recreation facility bordering Arcadia Wash providing flood control, irrigation, and recreation benefits. The single-purpose designs are a flood detention facility, park and lake which provide the same benefits as the multipurpose design, but are apart. The multipurpose design reduces a 50-year summer thunderstorm flood flow from 1700 cubic feet per second to 1078 cubic feet per second by diverting a portion of storm runoff from Arcadia Wash and routing it over grass and through a lake. The use of storm runoff in place of city water in the multipurpose design for irrigation and the lake reduces annual water costs by about 60 percent and total annual costs by about 10 percent as compared with the single-purpose designs. The multipurpose design is clearly more cost-effective as shown by its lower annual cost, namely 197,000 for the single-purpose facilities. Reductions in land price substantially reduce the cost-effective advantage of the multipurpose design.hydrology collectio
Using situated learning and multimedia to investigate higher-order thinking
No full textThis paper describes a qualitative study into students' use of higher-order thinking as they use an interactive multimedia program based on a situated learning framework. The analysis of types of talk used by students as they worked with the program clearly shows that the majority of their thinking was higher order, as defined by Resnick (1987) and other theorists. Social, procedural and lower-order talk was less evident but present in their talk in reduced proportions. These findings suggest that a multimedia program based on a situated learning approach can provide a learning environment capable of supporting and maintaining substantial levels of higher-order thinking
MR arthrography of the glenohumeral joint: Modified posterior approach without imaging guidance
No full textInstitutional review board approval and informed consent were obtained. The purpose of the study was to prospectively perform magnetic resonance (MR) arthrography of the glenohumeral joint by using modified posterior approach without ultrasonographic or fluoroscopic guidance. A solution containing 0.1 mL of gadolinium chelate, 15 mL of saline, and 5 mL of 2% lidocaine was subsequently injected into the glenohumeral joint in 147 patients (81 men, 66 women; age range, 20 - 79 years). A 21-gauge needle was advanced along a trajectory connecting a skin mark 3 - 4 cm below and 2 cm medially to the posterolateral margin of the acromion and the coracoid process, as assessed with palpation, proceeding in posteroanterior direction. The joint was successfully entered at first attempt in 125 (85%) patients, at second attempt in 19 (13%), and at third attempt in three (2%). Contrast material - enhanced images were evaluated for presence, site, and maximal extent of contrast material extravasation; route of diffusion of the extravasation; compromised or noncompromised diagnostic quality; and presence of gas bubbles. Extravasation occurred in seven patients: at the interval between the teres minor muscle and infraspinatus muscle in five and within the infraspinatus muscle belly in two; extravasation had diffused along the teres minor muscle and infraspinatus muscle in five (71%) and along the teres minor muscle in two (29%). The mean extension of extravasation was 15 mm. Image quality was not compromised, and no gas bubbles were detected. The procedure was successful in all patients, with no complications
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Evaluation of alternative water resources management systems for the Sonoita Creek watershed
No full textA water resources management study for the Sonoita Creek watershed is conducted in order to develop a viable water resources management plan for the area and to resolve possible conflict among the different water demands in the basin. These water demands are grouped under municipal and domestic, recreation, and agriculture. Six potential water resources management alternatives are developed and compared using the standardized cost-effectiveness methodology. This approach enables thorough and efficient comparison of the alternatives with respect to both quantifiable and unquantifiable criteria. Each alternative considers developing either the ground water or the surface water resources of the watershed. Also, each alternative considers some method of treated sewage effluent disposal. The algorithm ELECTRE I is used to select the most suitable plan for the watershed. This procedure is used because of its simplicity and its proven usefulness in analyzing multiobjective decision problems. With the available information on the ground and surface water resources of the watershed, the choice of alternatives is reduced to one, namely, construction of a small reservoir at Redrock Canyon. Evaporation control measures are needed in order to reduce evaporation losses from the reservoir. This reservoir would serve as a supplemental source of water for the town of Patagonia and for the Sonoita Creek Sanctuary.hydrology collectio
Debating the 'inevitable': Cherokees, Senecas, and rhetoric in the era of removal
No full textThis dissertation is about the use of the rhetoric of inevitability to justify the Jacksonian policy of “Indian Removal” and attempts of participants to grapple with the extent of their responsibility for the tragedies, like the infamous “Trail of Tears,” that resulted from this policy. Many participants in Indian Removal struggled with their moral responsibility, but ultimately decided that Indian removal was an inevitable historical development. Some Cherokee and Seneca chiefs embraced the same logic in order to justify their decisions to sign removal treaties against the overwhelming opposition of their own nations. Because of the overwhelming trend of colonial expansion and native land loss, claims of inevitability had a great deal of plausibility to them. However, the victory of the Senecas over determined attempts to remove them reveals that removal was not “inevitable” across the board. This project locates the points at which human beings took concrete actions in this struggle—making laws and treaties, voting for candidates, mustering troops, organizing resistance—to demonstrate that historical determinist thinking played a major role in justifying Indian removal, and in attempts to convince the wavering to drop their qualms and cooperate in its implementation. Further, this dissertation shows that a conscious rejection of such logic was an important ingredient in (at times successful) resistance to removal.Ph.D.Includes bibliographical referencesby Benjamin Todd Resnick-Da
Incidental vertebral compression fractures in imaging studies: Lessons not learned by radiologists
No full textTo assess radiologists reporting rates of incidental vertebral compression fractures in imaging studies.We performed a review of the current literature on the prevalence and reporting rates of incidental vertebral compression fractures in radiologic examinations.The bibliographic search revealed 12 studies: 7 studies using conventional radiology and 5 using multidetector computed tomography (MDCT). The loss of height cut-off to define a vertebral fracture varied from 15\% to 25\%. Fracture prevalence was high (mean 21.1\%; range 9.5\%-35\%) in both radiographic and MDCT studies (mean 21.6\% and 20.2\%, respectively). Reporting rates were low with a mean value of 27.4\% (range 0\%-66.3\%) and were significantly lower in MDCT than in radiographic studies (mean 8.1\% vs 41.1\%). Notably, recent studies showed lower reporting rates than older studies.Many scientific studies have confirmed a high prevalence of vertebral compression fractures as incidental findings on imaging studies. However, the underreporting of these fractures, as determined in our study, may negatively affect patient care
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