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Innovation should be about procedures and methods. Little thought is given to proximate, much less ultimate aims. In this article, the authors invite educators to take a break and explore the educational enterprise to which they devote their life's work. They discuss two bits of excerpted writing, both over half a century old. One comes from Jack Kenney, a high school English teacher whose career in Port Colborne and Collingwood, Ontario spanned the years from 1938 to 1974. The other was composed for the September, 1957 issue of the "Royal Bank of Canada Monthly Letter" by James Muir, then Chairman of the Board and President of that venerable financial institution. The first gives advice to students about to enter high school. The second offers counsel to those concerned with even higher education. They argue that education is in trouble if it is not "both" fun "and" practical. They then offer some observations on Jack Kenney's mantra, "The only object is intellect", for reflection.

Groundberries are an important component of the flora of the boreal forest and provide seasonally important food for many birds and mammals, as well as local people in northern Canada. Here, we ask whether there has been a change in the cover of groundberries in the Yukon boreal forest over the last two decades. We monitored five common species at undisturbed forest sites spaced 300 km apart. At our Kluane site, we monitored 710 fixed quadrats per year for 26 years (1997–2022), and at Mayo 500 quadrats per year for 18 years (2005–2022). The cover of four species, Arctostaphylos uva-ursi (L.) Spreng. (bearberry), Arctostaphylos rubra (Rehder & E.H. Wilson) Fernald (red bearberry), Empetrum nigrum L. (crowberry), and Geocaulon lividum (Richardson) Fernald (toadflax), declined annually by 0.2%–0.8% at both sites. In contrast, Vaccinium vitis-idaea L. (lingonberry) increased annually by 0.5% and 0.8%. We tested whether increases in summer temperature and rainfall were correlated with the observed changes but found no significant relationships. These boreal plants are changing in abundance, but we have limited data on the extent and speed of these changes. We recommend experiments to understand the cause(s) of these changes in groundberry productivity. Our study is a start in monitoring important berry species in this critical ecosystem of northern Canada. [ABSTRACT FROM AUTHOR]

Background Early care and education (ECE) settings represent an important point of intervention for childhood obesity prevention efforts. The objective of this paper was to compare ECE licensing regulations for each Canadian province/territory to evidence-based, obesity prevention standards. Methods Two authors reviewed existing ECE regulations for each province/territory and examined whether the regulatory text supported standards for nutrition (n  = 11), physical activity (n  = 5) and screen time (n  = 4). Provinces/territories were evaluated on the strength of regulatory language for each standard (i.e. fully, partially, or not addressed) and a total comprehensiveness score (maximum score of 20). ECE centres and homes were examined separately. Results The majority of provinces/territories required providers to follow Canada's Food Guide, but few had regulations for specific foods or beverages. Most provinces/territories included standards related to written menus and drinking water, but the strength of these standards was weak. Many provinces/territories required physical activity and outdoor opportunities to be provided daily, but few included a time requirement. Only two provinces included any screen time standards. Total comprehensiveness scores averaged 5.7 for centres and 5.4 for homes. Conclusions Canadian provinces/territories have insufficient obesity prevention regulations in ECE settings, highlighting a potential point of intervention to prevent obesity. [ABSTRACT FROM AUTHOR]

Coyotes are one of the major predators of snowshoe hares in the Yukon boreal forest. Lynx are the classic major predator of snowshoe hares because they are well adapted to cold and their large feet are effective snowshoes. Photo credit: Alice J. Kenney. gl GLO:69VH/01apr20:bes21678-fig-0003.jpg PHOTO (COLOR): Snowshoe hare (Lepus americanus). [Extracted from the article]

Long‐term monitoring is critical to determine the stability and sustainability of wildlife populations, and if change has occurred, why. We have followed population density changes in the small mammal community in the boreal forest of the southern Yukon for 46 years with density estimates by live trapping on 3–5 unmanipulated grids in spring and autumn. This community consists of 10 species and was responsible for 9% of the energy flow in the herbivore component of this ecosystem from 1986 to 1996, but this increased to 38% from 2003 to 2014. Small mammals, although small in size, are large in the transfer of energy from plants to predators and decomposers. Four species form the bulk of the biomass. There was a shift in the dominant species from the 1970s to the 2000s, with Myodes rutilus increasing in relative abundance by 22% and Peromyscus maniculatus decreasing by 22%. From 2007 to 2018, Myodes comprised 63% of the catch, Peromyscus 20%, and Microtus species 17%. Possible causes of these changes involve climate change, which is increasing primary production in this boreal forest, and an associated increase in the abundance of 3 rodent predators, marten (Martes americana), ermine (Mustela ermine) and coyotes (Canis latrans). Following and understanding these and potential future changes will require long‐term monitoring studies on a large scale to measure metapopulation dynamics. The small mammal community in northern Canada is being affected by climate change and cannot remain stable. Changes will be critically dependent on food–web interactions that are species‐specific. [ABSTRACT FROM AUTHOR]

Decisions about energy in developing communities are challenging from a technical standpoint, and because of the unique characteristics that typify them, e.g. limited infrastructure and government budgets, complex social and political arrangements, and economic vulnerability. Against the backdrop of these challenges, the government of Canada's Northwest Territories (NWT) is attempting to reform the region's energy system. This paper provides insights from the decision sciences, stemming from our work on the NWT's energy planning process, about how to structure decisions about energy development and delivery so as to effectively meet a range of stakeholders’ objectives in a transparent and inclusive manner. [ABSTRACT FROM AUTHOR]

Background: Upstream social determinants of health (SDH) have become widely acknowledged as lying at the root of poor health outcomes in Canada and globally. The Commission on the Social Determinants of Health maintains that educating the public about the SDH is a key step towards population health equity. Little is known about adolescent perceptions of the determinants of health. Curriculum in Ontario is lacking in SDH content, placing a much greater emphasis on individual, lifestyle behaviors, such as diet, physical activity, and safe sex practices. Identifying a gap in SDH knowledge within the adolescent population is required to advocate for health curriculum revision to include SDH material. Methods: Student sociodemographic information was obtained through a self-administered questionnaire. Concept mapping exercises were used to determine students' knowledge of the determinants of health and the SDH. Knowledge was approximated by the relative number of SDH concepts present in student maps. Poisson regression analysis was used to determine correlations between sociodemographic characteristics and SDH knowledge. Results: Concept maps indicated that students attributed their health primarily to physical determinants versus social determinants; 44% of maps contained no SDH content. Statistical analyses indicated that students' SDH knowledge varied by their relative socioeconomic status (SES). Conclusions: Findings suggest that 1) there is an SDH knowledge gap in the adolescent population, and 2) an inequity in adolescent SDH knowledge exists across socio-economic factors. Current Ontario health curriculum requires revision to include SDH material, which will require greater communication and collaboration from both educational institutions and health agencies in Canada. [ABSTRACT FROM AUTHOR]

Copyright of Canadian Journal of Zoology is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

We investigated nesting behavior, food habits, and interspecific interactions of Short-eared Owls (Asio flammeus) within an arctic tundra raptor community on Herschel Island and Komakuk Beach, northern Yukon, Canada. Short-eared Owls were the least common nesting raptor. We found only three nests, all on Herschel Island. All nests were on relatively elevated sites with fairly substantial vegetative cover. All nests failed in the egg stage, from a combination of human disturbance and possible prédation by Arctic Fox (Vulpes lagopus) or Red Fox (Vulpes vulpes). Short-eared Owls nested only in years when small rodent densities were at least 4 to 5 individuals per hectare in the spring. Short-eared Owls ate Northern Collared Lemmings (Dicrostonyx groenlandicus), Brown Lemmings (Lemmus trimucronatus), and Tundra Voles (Microtus oeconomus) almost exclusively, without clear selectivity. Peregrine Falcons (Falco peregrinus) killed two adult Short-eared Owls. In northern Yukon, the Short-eared Owl remains an uncommon summer resident and uses the region as a migration route. Spring rodent densities and interspecific prédation are prominent limiting factors, and human disturbance also limits nesting success. We recommend restricting access to most tundra areas during periods when the birds are mating, initiating nesting, and incubat-ing eggs. We recommend that human infrastructure be designed so that it cannot support novel nesting (and therefore local range expansion) by other nesting raptors that compete with and prey on Short-earned Owls. [ABSTRACT FROM AUTHOR]

The article discusses the liability emergence of banks to non-customers and the ability to search the freezing of assets by letter in Canada. It notes that the issue of the letter to the bank which offers sufficient fraud details and evidence can lead to a de facto Mareva injunction. It also points out that financial institutions should be prepared to investigate and be active in the assessment of a letter's merit as fraudulent activity occurrence increases through bank services.

Copyright of Canadian Journal of Zoology is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Prevailing explanations of the increase in collective action surrounding victims’ rights in early 1980s Canada generally follow the precepts of political process, resource mobilization, and framing approaches in social-movements research by depicting the movement as a corollary of contemporary organizational, political, and cultural conditions. We find that the increase in activism, while certainly influenced by such factors, also required that victim-advocate groups properly manage, display, and frame the strong emotions associated with the victim experience – grief, fear, injustice, and anger – to maintain the internal integrity of the group as well as its external or public legitimacy. Our analysis contributes to social-movements analyses of how understandings of movement dynamics can be deepened by paying attention to how emotions play out in the process of collective action. [ABSTRACT FROM AUTHOR]

Recently, criminal justice professionals have advocated restorative justice as an alternative to traditional punitive practices. Extant research has not examined the strategic interpersonal dynamics between victims, offenders, supporters, and facilitators during restorative justice sessions. Our ethnographic study addresses this gap. Building on studies of emotion in reintegrative shaming, we explore how shaming emotions are dramaturgically mediated by the rhetorical use of victim roles. We suggest that this micropolitical shame management facilitates apparently meaningful outcomes, undermines them, or results in agreements based more on realpolitik than reintegration. Our data are derived from detailed field notes at 28 youth restorative justice sessions in a mid-sized Canadian city. Our findings reveal a different picture than the frequently idealized images of restorative justice, thus underscoring the need for further analysis in this important area of criminal justice. [ABSTRACT FROM AUTHOR]

Urban forests are where 80% of Canadians live and work and, as such, represent their most intimate contact with their natural environment. The trees and woodlands in and around our cities and towns provide a broad range of environmental and socio-economic benefits to society. A recent survey in Ontario indicates that urbanites in that province not only consider their urban forests to be very important to them; they are also concerned about their conservation and management. A strategy for a collaborative, sustained, and nationally based effort to advance urban forestry in Canada is presented under the themes of community action, interdisciplinary relations, policy, professional development, research, and urban forests and planning. [ABSTRACT FROM AUTHOR]

The Swedish Tundra Northwest Expedition of 1999 visited 17 sites throughout the Canadian Arctic. At 12 sites that were intensively sampled we estimated the standing crop of plants and the densities of herbivores and predators with an array of trapping, visual surveys, and faecal-pellet transects. We developed a trophic-balance model using ECOPATH to integrate these observations and determine the fate of primary and secondary production in these tundra ecosystems, which spanned an 8-fold range of standing crop of plants. We estimated that about 13% of net primary production was consumed by herbivores, while over 70% of small-herbivore production was estimated to flow to predators. Only 9% of large-herbivore production was consumed by predators. Organization of Canadian Arctic ecosystems appears to be more top-down than bottom-up. Net primary production does not seem to be herbivore-limited at any site. This is the first attempt to integrate trophic dynamics over the entire Canadian Arctic. [ABSTRACT FROM AUTHOR]

Population fluctuations may occur in synchrony among several rodent species at a given site, and they may occur in synchrony over large geographical areas. We summarize information on synchrony in lemmings and voles from the Canadian Arctic for the past 20 years. The most detailed available information is from the central Canadian Arctic, where snap-trap samples have been taken annually at several sites for periods of up to 15 years. Geographical synchrony in the same species among different sites was strong, especially for the central and eastern Canadian Arctic. Synchrony among different species at a given site was also generally high. When one species is at high density, densities of all species at that site tend to be high. These results do not easily fit the mobile-predator hypothesis proposed to explain regional synchrony, and are more consistent with the weather hypothesis, which we suggest both entrains synchrony among sites and enforces synchrony among species within a site. We tentatively support the weather hypothesis for geographical synchrony in lemmings, and recommend the establishment of a circumpolar program to monitor lemming cycles and predator movements that would advance our understanding of these large-scale patterns of cyclic synchrony. [ABSTRACT FROM AUTHOR]

Forests patches and forest fragmentation were quantified for seven area municipalities within the Regional Municipality of York for the period from 1975 to 1988. This quantification made it possible to determine the extent of forest changes in space and time. In 1988, forest cover shrank to 30%-50% of its 1975 extent. At the same time, the number of forest patches doubled or tripled and mean patch size and the area of interior (based on a 100 m wide edge) declined indicating a high rate of forest fragmentation. [ABSTRACT FROM AUTHOR]

The pressures created by urban sprawl are leading to a reduction in forested land in Canada and North America. Poorly controlled land-use planning contributes to the haphazard urbanization of many small communities within commuting distance of major urban centers. Urban forests are largely ignored as an asset and the potential benefits they can offer to communities are often not acknowledged in the planning process. Relatively few communities across Canada have any form of urban forest management. A new definition of the urban forest is proposed that recognizes the need for an ecosystem approach to urban forest management and the integral role that humans play in that ecosystem. To facilitate the implementation of urban forest management plans in small communities, a simple strategic planning framework is presented. Using this approach, many small towns can maintain their rural character and benefit from a wealth of environmental, social and economic benefits. [ABSTRACT FROM AUTHOR]

Urban forests are the day-to-day interface between most Canadians and their natural environment. In spite of the many benefits derived from our urban forests, relatively little is understood about their extent, condition and level of management. The results of a survey of Canadian municipalities is used to summaries the level of management and planning in the country's municipally managed forests. The survey indicated that many communities do not have inventories or management plans and the level of funding for the maintenance of municipal forests are insufficient to sustain a supply of benefits to the community. [ABSTRACT FROM AUTHOR]

Examines the evolution of science and technology in Canada. Need for the country to develop its human resources to attain success in science and technology; Technological problems created by the geographical immensity of the country; Significance of the founding of the Royal Society of Canada in 1882 on the development of the nation's science and technology sector; Role of the National Research Council (NRC) in stimulating scientific research in the country; History of NRC; Factors affecting the country's research and development performance; Level of the country's competitiveness in the international research and development area; Role of universities and government laboratories in developing the nation's scientific and technological capabilities.

Reports on the patterns of predation on noncyclic lemmings in Canada. Regressions of live body mass on lengths of tooth rows; Percentage frequency of occurrence of all prey remains in fox scats; Impact of habitat on the lemming population; Response of adult red foxes to the density of collared lemmings.

Background: The effect of many contemporary chemotherapeutic drugs on pregnancy and livebirth is not well established. We aimed to establish the effects of these drugs on pregnancy in male and female survivors of childhood cancer not exposed to pelvic or cranial radiotherapy.Methods: We used data from a subset of the Childhood Cancer Survivor Study cohort, which followed 5-year survivors of the most common types of childhood cancer who were diagnosed before age 21 years and treated at 27 institutions in the USA and Canada between 1970 and 1999. We extracted doses of 14 alkylating and similar DNA interstrand crosslinking drugs from medical records. We used sex-specific Cox models to establish the independent effects of each drug and the cumulative cyclophosphamide equivalent dose of all drugs in relation to pregnancies and livebirths occurring between ages 15 years and 44 years. We included siblings of survivors as a comparison group.Findings: We included 10 938 survivors and 3949 siblings. After a median follow-up of 8 years (IQR 4-12) from cohort entry or at age 15 years, whichever was later, 4149 (38%) survivors reported having or siring a pregnancy, of whom 3453 (83%) individuals reported at least one livebirth. After a median follow-up of 10 years (IQR 6-15), 2445 (62%) siblings reported having or siring a pregnancy, of whom 2201 (90%) individuals reported at least one livebirth. In multivariable analysis, survivors had a decreased likelihood of siring or having a pregnancy versus siblings (male survivors: hazard ratio [HR] 0·63, 95% CI 0·58-0·68; p<0·0001; female survivors: 0·87, 0·81-0·94; p<0·0001) or of having a livebirth (male survivors: 0·63, 0·58-0·69; p<0·0001; female survivors: 0·82, 0·76-0·89; p<0·0001). In male survivors, reduced likelihood of pregnancy was associated with upper tertile doses of cyclophosphamide (HR 0·60, 95% CI 0·51-0·71; p<0·0001), ifosfamide (0·42, 0·23-0·79; p=0·0069), procarbazine (0·30, 0·20-0·46; p<0·0001) and cisplatin (0·56, 0·39-0·82; p=0·0023). Cyclophosphamide equivalent dose in male survivors was significantly associated with a decreased likelihood of siring a pregnancy (per 5000 mg/m(2) increments: HR 0·82, 95% CI 0·79-0·86; p<0·0001). However, in female survivors, only busulfan (<450 mg/m(2) HR 0·22, 95% CI 0·06-0·79; p=0·020; ≥450 mg/m(2) 0·14, 0·03-0·55; p=0·0051) and doses of lomustine equal to or greater than 411 mg/m(2) (0·41, 0·17-0·98; p=0·046) were significantly associated with reduced pregnancy; cyclophosphamide equivalent dose was associated with risk only at the highest doses in analyses categorised by quartile (upper quartile vs no exposure: HR 0·85, 95% CI 0·74-0·98; p=0·023). Results for livebirth were similar to those for pregnancy.Interpretation: Greater doses of contemporary alkylating drugs and cisplatin were associated with a decreased likelihood of siring a pregnancy in male survivors of childhood cancer. However, our findings should provide reassurance to most female survivors treated with chemotherapy without radiotherapy to the pelvis or brain, given that chemotherapy-specific effects on pregnancy were generally few. Nevertheless, consideration of fertility preservation before cancer treatment remains important to maximise the reproductive potential of all adolescents newly diagnosed with cancer.Funding: National Cancer Institute, National Institutes of Health, and the American Lebanese-Syrian Associated Charities. [ABSTRACT FROM AUTHOR]

The pattern and scale of the genetic structure of populations provides valuable information for the understanding of the spatial ecology of populations, including the spatial aspects of density fluctuations. In the present paper, the genetic structure of periodically fluctuating lemmings (Dicrostonyx groenlandicus) in the Canadian Arctic was analysed using mitochondrial DNA (mtDNA) control region sequences and four nuclear microsatellite loci. Low genetic variability was found in mtDNA, while microsatellite loci were highly variable in all localities, including localities on isolated small islands. For both genetic markers the genetic differentiation was clear among geographical regions but weaker among localities within regions. Such a pattern implies gene flow within regions. Based on theoretical calculations and population census data from a snap-trapping survey, we argue that the observed genetic variability on small islands and the low level of differentiation among these islands cannot be explained without invoking long distance dispersal of lemmings over the sea ice. Such dispersal is unlikely to occur only during population density peaks.

Variation in the nucleotide sequence of the mitochondrial control region (250 bp) and the cytochrome b region (870 bp) was examined in collared lemmings (Dicrostonyx groenlandicus) from 19 localities in northern Alaska and the Canadian Arctic. The division of D. groenlandicus in two phylogeographical groups with limited divergence across the Mackenzie River is consistent with the separation of this species in more than one refugial area located to the northwest of the Laurentide ice sheet during the last glaciation. Populations of D.groenlandicus from formerly glaciated areas are no less variable than those in nonglaciated areas. Instead, the low intrapopulation and intraregional diversity estimates in D. groenlandicus are probably a result of regional bottleneck events due to range contractions during Holocene warming events. These results are consistent with findings previously reported on collared lemmings (D. torquatus) from the Eurasian Arctic.