920 resultados para Western Canada Irrigation Association.


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At head of title: Dept. of the Interior of Canada ... Irrigation Branch.

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This study examined how Outward Bound Western Canada (OBWC) course outcomes are achieved by exploring the relationships among course components, students' characteristics, and course outcomes. OBWC is a wilderness-based adventure education organization that helps students achieve outcomes such as increased self-awareness, self-confidence, motivation, interpersonal skills, concern for others, and concern for the environment. This study explored the ways in which the various components of courses and the characteristics of students contribute to determining the outcomes students experience as a result of their courses. The purpose of the study was to gain a better understanding of how OBWC course outcomes are achieved in order to strengthen adventure education theory, enhance practice at OBWC and other adventure education organizations, and provide a foundation for further research on this topic. As an interpretive case study, this study sought to describe how OBWC course outcomes are achieved and to provide interpretations of the research findings. Data was gathered from OBWC students and instructors using the quantitative and qualitative data collection techniques of questionnaire, interview, and observation. Data collected from 98 participants ensured a considerable breadth to the study, while interviews with a number of participants also enabled the collection of in-depth data. Analysis and triangulation of the data from the various sources allowed discernment of the research findings. A comprehensive and detailed picture of how course outcomes are achieved emerged from the findings. Twenty-nine course components were found to influence course outcomes, including various aspects of course activities, the physical environment, instructors, and the group. The findings indicated that certain course components were most influential in determining increases to students' self-awareness, self-confidence, self-reliance, self-esteem, self-concept, motivation, self-responsibility, interpersonal skills, concern for others, and concern for the environment. A number of course components were found to indirectly contribute to positive course outcomes by helping maximize the effectiveness of other components, by increasing students' motivation while on course, or by facilitating the processing and transference of new information. The findings also suggested that several course components either directly or indirectly affected course outcomes in negative ways. In addition, the gender, age, population, and expectations of students were found to play a role in determining the course outcomes they experienced and in determining which course components caused those outcomes. Interpretation of the findings resulted in the generation of research-based theory. The main theoretical argument derived from the results of the study was that course outcomes are influenced by a combination of course components and characteristics of students. More specifically, the theory generated by the study indicated that five groupings of factors contribute to course outcomes, including course activities, the physical environment, instructors, the group, and students' characteristics. The study was considered in relation to existing adventure education literature and larger theoretical issues. The generated theory and research findings were then used to develop suggestions for improving practice at OBWC and other adventure education organizations, as well as for enhancing future research studies.

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Drought is not an unusual phenomenon on the Canadian prairies or the U.S. Great Plains. There were many short-term droughts in the prairies during the 20th century that generally lasted one to two years (e.g., 1961, 1988). The Canadian prairies multi-year drought event (1999-2003+) has been considered similar in severity to the 1930s drought years. The 2004 Prairie Drought Workshop resulted in 76 scientists and resource managers gathering in Calgary, Alberta, to share information on drought science, impacts, and monitoring. Presenters examined the impacts on agriculture, stream flow, forests, and ground water, including potential impacts under a changed climate. Though focused on the Canadian prairies, the information presented could be applied to many parts of the U.S. Great Plains.

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Re-Os and Pb-Pb isotopic analysis of reduced varved sediments cored in the deeper basin of Saanich Inlet (B.C.) are presented. From core top to 61 cm down-core, spanning approximately the last 100 yrs of sedimentation, 187Os/188Os ratio and Os concentration respectively increase from ~0.8 to ~0.9 and from 55 to 60 ppt, whereas Re concentration decreases from 3600 to 2600 ppt. Re correlates with Corg (R2=0.6) throughout the entire section, whereas Os follows Re and Corg trends deeper down-core, suggesting a decoupling of a Re- and Os-geochemistry during burial and/or very early diagenesis. No systematic compositional differences are observed between seasonal laminae. 204Pb-normalized lead isotope ratios increase from sediment surface down to 7 cm down-core, then decrease steadily to pre-industrial levels at ~50 cm down-core. This pattern illustrates the contamination from leaded gasoline until the recent past. The measured Pb isotopic ratios point primarily toward gasoline related atmospheric lead from the USA. The osmium isotopic values measured are significantly lower than those of modern seawater-Os. In comparison with other anoxic environments, the osmium content of Saanich Inlet sediments is low, and its Os isotopic composition suggests significant inputs from unradiogenic sources (detrital and/or dissolved). Ultramafic lithologies in the watershed of the Fraser River are suspected to contribute to sedimentary inputs as well as to the input of dissolved unradiogenic osmium in the water of Saanich Inlet. The presence of some unradiogenic Os from anthropogenic contamination cannot be discounted near the core top, but since deeper, pre-anthropogenic levels also yielded unradiogenic Os results, one is led to conclude that the overall low 187Os/188Os ratios result from natural geochemical processes. Thus, the bulk sediment of Saanich Inlet does not appear to record 187Os/188Os composition of the marine end-member of the only slightly below normal salinity, fjord water. The low seawater-derived Os content of the sediment, coupled with unradiogenic Os inputs from local sources, explains the overall low isotopic values observed. As a consequence, such near-shore anoxic sediments are unlikely to record changes in the past ocean Os isotopic composition.

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Mode of access: Internet.

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Cover-title: Farming and ranching in western Canada.

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Mode of access: Internet.

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At head of title: Dominion of Canada. Department of agriculture. Branch of the live stock commissioner

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Mode of access: Internet.