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Aerial application of herbicides continues to be a dominant method of vegetation control in Canadian forest management. In this paper, we describe a suite of relatively modern technologies and emphasize their potential for integrated use in optimization of aerial herbicide treatments. The potential is illustrated using several case studies involving fixed-wing applications of glyphosate-based herbicide in the boreal forest region of Ontario, Canada. Results indicate that integration of geographic information systems, differential global positioning, electronic-guidance, on-site meteorological monitoring and remote sensing can be used to effectively plan, enhance application control and provide detailed post-treatment assessment and archival data for herbicide spray programs. SprayAdvisor, a GIS-based decision support system with the capacity to directly integrate all of these elements is briefly described. [ABSTRACT FROM AUTHOR]

In this article, we discuss findings of an ethnographic exploring how Canadian youth frame health within the context of their life situations. Seventy-one youth (12 to 19 years of age) from diverse ethnic backgrounds and residing in a major city in western Canada took part in the study.We used traditional ethnographic methods of interviewing and fieldwork, as well as photovoice. Sociocultural themes emerging from the study indicate that even though youth have a broad understanding of health that includes acknowledging the many different types of health beyond physical health, lifestyle factors such as healthy eating and exercise nonetheless dominate the talk of health by youth. The results highlight that the concept of health normalized by academics and public policy experts-as being inclusive of the broader determinants of health-might not be congruent with how youth regard health.