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The article presents a list of various papers on policy studies subjects that were presented at the 1977 annual meetings of the Midwest, New England, Northeastern, Southern, Southwestern, and Western Political Science Association. Philip Abbott of Wayne State University, Detroit, Michigan presented "Philosophy of Political Theory and Public Policy: The Abortion Question in the Classroom." John Shiry of University at Alberta, presented "Policy Type and the Political Process in a Canadian Province: A Test of the Lowi Model."

In the past decade, a large volume of peer‐reviewed papers has examined the potential impacts of oil and gas resource extraction in the Canadian oil sands (OS). A large proportion focuses on terrestrial biology: wildlife, birds, and vegetation. We provide a qualitative synthesis of the condition of the environment in the oil sands region (OSR) from 2009 to 2020 to identify gaps and progress cumulative effects assessments. Our objectives were to (1) qualitatively synthesize and critically review knowledge from the OSR; (2) identify consistent trends and generalizable conclusions; and (3) pinpoint gaps in need of greater monitoring or research effort. We visualize knowledge and terrestrial monitoring foci by allocating papers to a conceptual model for the OS. Despite a recent increase in publications, focus has remained concentrated on a few key stressors, especially landscape disturbance, and a few taxa of interest. Stressor and response monitoring is well represented, but direct monitoring of pathways (linkages between stressors and responses) is limited. Important knowledge gaps include understanding effects at multiple spatial scales, mammal health effects monitoring, focused monitoring of local resources important to Indigenous communities, and geospatial coverage and availability, including higher attribute resolution in human footprint, comprehensive land cover mapping, and up‐to‐date LiDAR coverage. Causal attribution based on spatial proximity to operations or spatial orientation of monitoring in the region is common but may be limited in the strength of inference that it provides. Integr Environ Assess Manag 2022;18:388–406. © 2021 The Authors. Integrated Environmental Assessment and Management published by Wiley Periodicals LLC on behalf of Society of Environmental Toxicology & Chemistry (SETAC). KEY POINTS: We provide a qualitative synthesis of the condition of the environment in the Canadian oil sands region (OSR) in northeastern Alberta from 2009 to 2020 to identify gaps and progress cumulative effects assessments. Despite a recent increase in publications, focus has remained concentrated on a few key stressors and a few taxa of interest, for which monitoring is well represented, though direct monitoring of pathways (linkages between stressors and responses) is limited. Important gaps include a lack of understanding of effects at multiple spatial scales, a lack of focused monitoring of local resources important to Indigenous communities, and geospatial data resolution and availability. Causal attribution based on spatial proximity to oil sands operations or spatial orientation of monitoring in the OSR is common but may be limited in the strength of inference that it provides. [ABSTRACT FROM AUTHOR]

The desire to document and understand the cumulative implications of oil sands (OS) development in the ambient environment of northeastern Alberta has motivated increased investment and release of information in the past decade. Here, we summarize the knowledge presented in the theme‐based review papers in this special series, including air, surface water, terrestrial biology, and Indigenous community‐based monitoring in order to (1) consolidate knowledge gained to date, (2) highlight key commonalities and gaps, and (3) leverage this knowledge to assess the state of integration in environmental monitoring efforts in the OS region and suggest next steps. Among air, water, and land studies, the individual reviews identified a clear focus on describing stressors, including primarily (1) contaminant emission, transport, transformation, deposition, and exposure, and (2) landscape disturbance. These emphases are generally partitioned by theme; air and water studies focus heavily on chemical stressors, whereas terrestrial monitoring focuses on biological change and landscape disturbance. Causal attribution is often stated as a high priority objective across all themes. However, studies often rely on spatial proximity to attribute cause to industrial activity, leaving causal attribution potentially confounded by spatial covariance of both OS‐ and non‐OS‐related stressors in the region, and by the complexity of interacting pathways between sources of environmental change and ecological receptors. Geospatial and modeling approaches are common across themes and may represent clear integration opportunities, particularly to help inform investigation‐of‐cause, but are not a replacement for robust field monitoring designs. Cumulative effects assessment remains a common focus of regional monitoring, but is limited in the peer‐reviewed literature, potentially reflecting a lack of integration among monitoring efforts beyond narrow integrated interpretations of results. Addressing this requires greater emphasis on a priori integrated data collection and integrated analyses focused on the main residual exposure pathways, such as atmospheric deposition. Integr Environ Assess Manag 2022;18:428–441. © 2021 The Authors. Integrated Environmental Assessment and Management published by Wiley Periodicals LLC on behalf of Society of Environmental Toxicology & Chemistry (SETAC). KEY POINTS: Our summary of the peer‐reviewed literature since 2010 from the Alberta oil sands region reveals an emphasis on chemical stressors and their association with atmospheric emissions, transport, transformation, and deposition, as well as an emphasis on landscape disturbance and associated effects.System‐wide gaps in the literature, including topics of concern to local Indigenous communities, derive from a disconnect between theme areas (air, water, land), contribute to an incomplete knowledge of functional linkages, and may undermine the ability to inform regulatory or policy action.Combining papers not explicitly designed together creates interpretative and analytical challenges, and overcoming these may require future optimization of and integration between targeted monitoring projects and entire theme areas. [ABSTRACT FROM AUTHOR]

Over the past decades, concerns regarding the local and cumulative impacts of oil sands development have been increasing. These concerns reflect the industry's emissions, land disturbance, water use, and the resulting impacts to Indigenous Rights. Effective environmental management is essential to address and ultimately manage these concerns. A series of ambient regional monitoring programs in the oil sands region (OSR) have struggled with scope and governance. In the last 10 years, monitoring has evolved from a regulatory‐driven exercise implemented by industry into a focused, collaborative, multistakeholder program that attempts to integrate rigorous science from a multitude of disciplines and ways of knowing. Monitoring in the region continues to grapple with leadership, governance, data management, scope, and effective analysis and reporting. This special series, "A Decade of Research and Monitoring in the Oil Sands Region of Alberta, Canada," provides a series of critical reviews that synthesize 10 years of published monitoring results to identify patterns of consistent ecological responses or effects, significant gaps in knowledge, and recommendations for improved monitoring, assessment, and management of the region. The special series considered over 300 peer‐reviewed papers and represents the first integrated critical review of the published literature from the region. This introductory paper of the series introduces the history of ambient environmental monitoring in the OSR and discusses historic and ongoing challenges with the environmental monitoring effort. While significant progress has been made in areas of governance, expanded geographical scope, and inclusion of Indigenous communities in monitoring in the region, significant issues remain regarding a lack of integrated reporting on environmental conditions, public access to data, and continuity of monitoring efforts over time. Integr Environ Assess Manag 2022;18:319–332. © 2021 The Authors. Integrated Environmental Assessment and Management published by Wiley Periodicals LLC on behalf of Society of Environmental Toxicology & Chemistry (SETAC). KEY POINTS: This article introduces a special series that reviews over 300 manuscripts published over 10 years across environmental disciplines in the oil sands region of Alberta.The series is the first integrated critical review of published literature in the region.We discuss the history of ambient environmental monitoring in the region and the historic and ongoing challenges including how western science and Indigenous knowledge have been considered.While some progress has been made, significant issues remain regarding a lack of integrated reporting on environmental conditions, lack of public access to data, and discontinuity of monitoring efforts over time due, in part, to political influence. [ABSTRACT FROM AUTHOR]

Objectives: To evaluate a new prenatal education program evaluation tool, the UpStart Parent Survey – Prenatal, in terms of: (a) reliability and validity; (b) sensitivity to change over time; (c) whether results differed for mothers versus fathers; and (d) whether results differed when using an electronic tablet‐computer versus a paper survey. Design and Sample: Psychometric study. Participants were 277 expectant mothers (n = 161) and fathers (n = 106) enrolled in Childbirth Essentials, a 6‐week prenatal education program. Measures: The UpStart Parent Survey – Prenatal is a retrospective pretest/posttest survey with three scales: Parenting Knowledge, Parenting Experience, and Program Satisfaction, and three open‐ended questions. Results: The UpStart Parent Survey – Prenatal is sensitive to change and demonstrated significant positive differences in parenting knowledge and parenting experience. There was no difference in results whether the survey was completed by mothers or fathers. Results were similar whether paper or electronic formats were used. The survey was easy to complete. Conclusion: The UpStart Parent Survey – Prenatal holds promise as a reliable and valid evaluation tool to capture outcomes of brief prenatal education programs that target the general population of expectant parents. [ABSTRACT FROM AUTHOR]

Background: Inflammatory bowel diseases (IBDs) are chronic gastrointestinal diseases that negatively affect the enjoyment of food and engagement in social and cultural gatherings. Such experiences may promote psychosocial challenges, an aspect of IBD often overlooked and under‐supported in clinical settings and research. Objectives: This study explored the psychosocial experiences that young adults with IBD have with food via a qualitative patient‐led research process. Methods: Trained patient researchers conducted this study by engaging peers via semi‐structured interviews and focus groups in a three‐step co‐design process. Participants (n = 9) identified the research topic (SET), explored the topic and identified emerging themes (COLLECT), refined themes and made recommendations for healthcare system change (REFLECT). Results: Themes that emerged included: 'Experimenting with Food', 'Evolution Over Time', 'Diet Changes are Emotional' and 'Role of Stigma'. Participants identified the significance and frustrations of repeated testing and experimenting with food compatibility, and noted nuances in food relationships as they gain knowledge and experience over time. They emphasized the importance of maintaining a sense of hope throughout and wished to impart this to newly diagnosed patients. Conclusion: Participants experience numerous psychosocial challenges as they strive to manage their diet, noting gaps in support available from IBD practitioners. Participants made practical recommendations for healthcare system change to improve patient outcomes, highlighting the importance of sharing stories and collaboratively including patients in the development of new services and protocols. Authors recommend further research in this area to build a body of knowledge and support that helps IBD patients maintain hope while navigating challenges with food. Patient or Public Contribution: The first four authors on this paper were the lead researchers in this study's design and analysis and identify as patients; they conducted the research with this identity at the forefront following a peer‐to‐peer research model. These authors were mentored by patient researchers who also contributed to the manuscript, and the research process itself was co‐lead and directed by other patient participants and consultants. Results and recommendations coming from this paper came directly from patient participants. [ABSTRACT FROM AUTHOR]

A paper published in this journal, 'Measuring the short-term impact of fluoridation cessation on dental caries in Grade 2 children using tooth surface indices,' by McLaren et al had shortcomings in study design and interpretation of results, and did not include important pertinent data. Its pre-post cross-sectional design relied on comparison of decay rates in two cities: Calgary, which ceased fluoridation, and Edmonton, which maintained fluoridation. Dental health surveys conducted in both cities about 6.5 years prior to fluoridation cessation in Calgary provided the baseline. They were compared to decay rates determined about 2.5 years after cessation in a second set of surveys in both cities. A key shortcoming was the failure to use data from a Calgary dental health survey conducted about 1.5 years prior to cessation. When this third data set is considered, the rate of increase of decay in Calgary is found to be the same before and after cessation of fluoridation, thus contradicting the main conclusion of the paper that cessation was associated with an adverse effect on oral health. Furthermore, the study design is vulnerable to confounding by caries risk factors other than fluoridation: The two cities differed substantially in baseline decay rates, other health indicators, and demographic characteristics associated with caries risk, and these risk factors were not shown to shift in parallel in Edmonton and Calgary through time. An additional weakness was low participation rates in the dental surveys and lack of analysis to check whether this may have resulted in selection biases. Owing to these weaknesses, the study has limited ability to assess whether fluoridation cessation caused an increase in decay. The study's findings, when considered with the additional information from the third Calgary survey, more strongly support the conclusion that cessation of fluoridation had no effect on decay rate. Consideration of the limitations of this study can stimulate improvement in the quality of future fluoridation effectiveness studies. [ABSTRACT FROM AUTHOR]

This review is part of a series synthesizing peer‐reviewed literature from the past decade on environmental monitoring in the oil sands region (OSR) of northeastern Alberta. It focuses on atmospheric emissions, air quality, and deposition in and downwind of the OSR. Most published monitoring and research activities were concentrated in the surface‐mineable region in the Athabasca OSR. Substantial progress has been made in understanding oil sands (OS)‐related emission sources using multiple approaches: airborne measurements, satellite measurements, source emission testing, deterministic modeling, and source apportionment modeling. These approaches generally yield consistent results, indicating OS‐related sources are regional contributors to nearly all air pollutants. Most pollutants exhibit enhanced air concentrations within ~20 km of surface‐mining activities, with some enhanced >100 km downwind. Some pollutants (e.g., sulfur dioxide, nitrogen oxides) undergo transformations as they are transported through the atmosphere. Deposition rates of OS‐related substances primarily emitted as fugitive dust are enhanced within ~30 km of surface‐mining activities, whereas gaseous and fine particulate emissions have a more diffuse deposition enhancement pattern extending hundreds of kilometers downwind. In general, air quality guidelines are not exceeded, although these single‐pollutant thresholds are not comprehensive indicators of air quality. Odor events have occurred in communities near OS industrial activities, although it can be difficult to attribute events to specific pollutants or sources. Nitrogen, sulfur, polycyclic aromatic compounds (PACs), and base cations from OS sources occur in the environment, but explicit and deleterious responses of organisms to these pollutants are not as apparent across all study environments; details of biological monitoring are discussed further in other papers in this special series. However, modeling of critical load exceedances suggests that, at continued emission levels, ecological change may occur in future. Knowledge gaps and recommendations for future work to address these gaps are also presented. Integr Environ Assess Manag 2022;18:333–360. © 2021 The Authors. Integrated Environmental Assessment and Management published by Wiley Periodicals LLC on behalf of Society of Environmental Toxicology & Chemistry (SETAC). KEY POINTS: Air emissions from oil sands activities are regional contributors to nearly all air pollutants, with most exhibiting enhanced concentrations within ~20 km of surface‐mining activities, and some enhanced at greater distances (>100 km) downwind.Temporal trends identified in ambient air‐monitoring data vary with the statistical analysis applied; existing ambient air quality guidelines and standards are rarely exceeded; however, single‐pollutant thresholds are not comprehensive indicators of air quality.Co‐located deposition‐ and ecological‐effects monitoring identify a link between nitrogen deposition and ecological changes in jack pine, bog, and poor fen ecosystems—there is limited evidence of acidification to date, but predictive modeling indicates areas exceeding critical loads of acidification.Knowledge gaps are synthesized and recommendations for future work to address these gaps are presented. [ABSTRACT FROM AUTHOR]

Historically, environmental research and monitoring in the Alberta oil sands region (OSR) located in northeastern Alberta, Canada, have largely neglected, meaningful Indigenous participation. Through years of experience on the land, Indigenous knowledge (IK) holders recognize change on the landscape, drawing on inextricable links between environmental health and practicing traditional rights. The cumulative impacts of crude oil production are of great concern to Indigenous communities, and monitoring initiatives in the OSR provide unique opportunities to develop Indigenous community‐based monitoring (ICBM). A review of ICBM literature on the OSR from 2009 to 2020 was completed. Based on this review, we identify best practices in ICBM and propose governance structures and a framework to support meaningful integration of ICBM into regulatory environmental monitoring. Because it involves multimedia monitoring and produces data and insights that integrate many aspects of the environment, ICBM is important for natural science research. ICBM can enhance the relevance of environmental monitoring by examining relationships between physical and chemical stressors and culturally relevant indicators, so improving predictions of long‐term changes in the environment. Unfortunately, many Indigenous communities distrust researchers owing to previous experiences of exploitive use of IK. In the present paper, we recommend important practices for the integration of IK into regional environmental monitoring programs. ICBM is important to communities because it includes conditions to which communities can exercise traditional rights, and highlight how industrial activities affect this ability. Equally important, ICBM can generate a resurgence of Indigenous languages and subsequently traditional practices; it can also revive the connection with traditional lands and improve food security. Integr Environ Assess Manag 2022;18:407‐427. © 2021 The Authors. Integrated Environmental Assessment and Management published by Wiley Periodicals LLC on behalf of Society of Environmental Toxicology & Chemistry (SETAC). KEY POINTS: The paper provides a unique way of organizing the integration of Indigenous knowledge (IK) and Western science (WS) using a conceptual model, which can allow regional monitoring programs to constantly evaluate research objectives and identify gaps.It is not the intention of this paper to adapt IK or WS to any model or monitoring program, but to discuss the integrative ability of both to better understand pressure/stressor‐pathways and response relationships of environmental impacts in the oil sands region.Contextualizing each program into the conceptual model is useful for large monitoring programs, such as the Oil Sands Monitoring (OSM) program, to integrate large amounts of data assessing different aspects of the environment over time and space.Indigenous community‐based monitoring approaches, such as those led by the Mikisew Cree and Athabasca Chipewyan First Nations, support regional monitoring where data are easily captured in regional‐scale models. [ABSTRACT FROM AUTHOR]

The implementation of school reforms to advance reconciliation with Indigenous peoples provides an opportunity to explore what Canadians think is important in framing their identities and values. This paper draws on data from a survey of public perspectives on education for reconciliation activities in two Canadian provinces, Alberta and Saskatchewan. We consider the broader community context within which schools are located. By examining public perspectives, we are able to assess how curricular initiatives related to reconciliation are understood by community members, both as a priority in itself and in relation to other key curricular areas. Informed by critical race theory, our findings suggest that reconciliation is restricted to activities that do not involve extensive change to existing curricular and ideational frameworks. These perspectives exist alongside extensive opposition to reconciliation justified by claims that Indigenous experiences and perspectives are receiving undue attention relative to more pressing educational priorities. Our findings suggest that aims to transform dominant understandings about Canadian history and identity remain far from being fulfilled. [ABSTRACT FROM AUTHOR]

Presents abstracts of second- and third-place undergraduate papers in agricultural economics. 'Factors affecting the price paid for breeding bulls: a case study of the UBIA performance bull test and sale,' by Shane Ellis; 'Attitudes towards establishing a new organic grain cooperative in Alberta,' by Chantelle L'Hoir.

This paper provides insights into the little‐explored gendered perspective of the parenting practices of Somali immigrant mothers in a Canadian province (Alberta). We use a critical ethnographic methodology and a transnational feminist framework. Semi‐structured interviews were conducted with ten Somali mothers aged 18 to 50. Mothers were interviewed about their parenting practices in a post‐migration context, including challenges. Our results show immigrant mothers combine their cultural values with new values from Canada that they find effective. We find gendered differences in how parenting experiences are perceived. Our results suggest the need for anti‐racist and culturally safe health, education, and child policies and practices. [ABSTRACT FROM AUTHOR]

The response of critically stressed dormant faults to fluid perturbation, by oil and gas production, has been a major public concern because of its link to induced seismicity. In this paper, we study the hydrogeological factors that affect a nearby fault response, during and after hydraulic fracturing (HF) operations, evaluated by the change in Coulomb Failure Stress (CFS) and the rate of seismicity (R) through coupling solid deformation and fluid flow. Our results show that the pore pressure increases rapidly in a fault that is close (hydraulically connected) to HF operations, which might lead to its activation when the injection rate is high. When the fault is adjacent to HF but distant from it, its shallow region is subjected to a stabilizing deformation‐induced normal compressive stress and its deeper region is destabilized under extension. In this case, the fault orientation and damage zone size have a significant effect on the fault's stability and response. On the other hand, decreasing the rate of injection can either increase or decrease the CFS values depending on the fault location and the dominant stresses. Therefore, serious attention should be given to the fault position, its architecture, and the injection rate to help reduce the potential for induced seismicity from HF. Our findings are verified and confirmed using the case of the Duvernay formation in Alberta, Canada, where the reported seismic data correlate with high CFS and R values. Plain Language Summary: The main cause for the induced seismic events occurring during or after hydraulic fracturing (HF) operations can be attributed to fluid diffusion and/or stress changes along critically stressed dormant faults located near the operations. Different factors can affect the response of pre‐existing faults to HF operations including the distance between the fault and HF operations, fault orientation, size of its damage zone, and the injection rate of HF. Based on our simulations, we conclude that when the fault is far from the operations, its shallow region (i.e., closer to HF) is subjected to a stabilizing deformation‐induced compressive normal stress and its deeper region is destabilized under extension. However, for a close fault that is hydraulically connected to HF, the pore pressure increases rapidly which might lead to fault activation. Moreover, we found that decreasing the rate of injection can either increase or decrease the risk of induced seismicity depending on the fault location with respect to HF. Hence, besides avoiding fracturing rocks near faults, operators need to give serious attention to the location of faults relative to the operations, its architecture and the injection parameters to limit induce seismic events. Key Points: Faults can be destabilized by pressure diffusion if close to hydraulic fracturing and by increase in tensile and shear stresses if distantDamage zone size is important when normal and shear stresses dominate the fault response to hydraulic fractuirng (HF)Lowering injection rates does not necessarily reduce seismicity rates of faults that are stabilized by normal compressive stress during HF [ABSTRACT FROM AUTHOR]

This paper presents an analysis of the demand for hunting licenses in Alberta from 1968 to 2004. Regression analysis was used to estimate the effects of some of the commonly thought reasons for the decline in hunting participation in Alberta; specifically, the effects of changes in wildlife certificate prices, species license prices, income levels, and the proportion of the population living in urban areas. I found that hunting appears to be an inferior good since the income elasticity of demand was elastic—as provincial income levels increase, it is expected that less people will participate in hunting. In addition, the price elasticity of demand was inelastic indicating that raising license prices could theoretically generate increased revenues for wildlife management. I further hypothesize that if hunting participation needs to be increased for wildlife management purposes, it can be accomplished by decreasing the prices of licenses without directly affecting the revenue generated. Ultimately, we must realize that many of the hypothesized reasons for the decline in hunting participation in Alberta are qualitative and non-economic in nature and are thus difficult to include in most analyses. Whereas price and income are important determinants of hunting demand, they are only part of the story. In an attempt to increase household expenditure on shell eggs, producers have differentiated production to offer consumers a multitude of specialty egg varieties. These varieties lie in one of two general classifications; eggs which are nutritionally enhanced, and those which are produced under alternate production techniques yet are otherwise nutritionally equivalent to their generic counterparts. This study uses two surveys developed in 2005 and 2006 focusing on consumer attitudes, potentially impacting egg preferences. The data were then analyzed with a multinomial logit regression utilizes attitude factor scores and demographic characteristics. This study reveals what consumer attitudes and demographic traits are associated with preferences for vegetarian, free-run, organic, vitamin-enhanced and omega-3-enhanced egg types with two significant conclusions. It is first shown that consumers have a strong preference for free-run eggs and second that there appears to be confusion surrounding egg attributes. This is revealed by the result that health conscious consumers show a greater willingness to pay (WTP) for free-run, vegetarian or organic eggs, while revealing a negative WTP for nutritionally enhanced varieties (omega-3 and vitamin-enhanced). Deciphering consumer attitudes towards egg varieties is an important aspect of developing marketing strategies, predicting policy change implications and in understanding consumer views towards industry directions. Proliferation of differentiated products may not increase demand in the targeted segments, it may confuse consumers. [ABSTRACT FROM AUTHOR]

In this paper, new polygeneration processes co‐producing electricity, methanol, dimethyl ether (DME), and Fischer–Tropsch (FT) fuels from different feedstock ratios of biomass, natural gas, and nuclear hydrogen generated through a copper‐chlorine (CuCl) cycle are analyzed for operation in Canada to produce transportation fuels. This combination of carbonless heat and a 'carbon neutral' biomass feedstock would contribute to the net reduction in greenhouse gas (GHG) emissions. In Part I of this work, the model for this biomass‐gas‐and‐nuclear‐to‐liquids (BGNTL) process was developed. This work expands on it and evaluates the economic and environmental impacts this plant would have in both Ontario and Alberta based on their local costs and resource availability. The analysis demonstrates that an increase in the ratio of biomass to natural gas in feedstock reduces the emissions of the process but increases the cost of carbon dioxide equivalents (CO2e) avoided. The results show that the BGNTL concept can be an economically attractive way of reducing net transportation sector GHG emissions in both Ontario and Alberta in meaningful quantities. [ABSTRACT FROM AUTHOR]

BACKGROUND: Sulfolane, an industrial solvent commonly used for sweetening natural gas, has recently emerged as a contaminant of concern in Alberta because of its widespread detection around many gas processing sites. In the work reported in this paper, the aerobic biodegradation of sulfolane by Pseudomonas strain or Archaea strain and mixed bacterial cultures was studied. The evaluation was furtherly conducted using Pseudomonas which had been acclimated to water contaminated with sulfolane. The impacts of co‐contaminant, initial sulfolane concentration and soil content on biodegradation of sulfolane using acclimated Pseudomonas were also investigated. RESULTS: The results showed that Pseudomonas degraded sulfolane at a rate of 2.03 mg L−1 h−1 while Archaea strain degraded sulfolane at a rate of 0.04 mg L−1 h−1. Pseudomonas and Archaea inoculated with aquifer sediments containing indigenous microbes achieved a higher sulfolane degradation rate. Acclimation of Pseudomonas to sulfolane environment sufficiently mitigated the lag period before the onset of the biodegradation process. CONCLUSIONS: Pseudomonas is a good candidate for aerobic biodegradation of sulfolane in groundwater. Aerobic biodegradation of sulfolane by Pseudomonas can be significantly enhanced through inoculation with sulfolane‐contaminated sediments or acclimatization to sulfolane environment. © 2022 Society of Chemical Industry [ABSTRACT FROM AUTHOR]

Methane emission quantification from gas migration (GM) and surface casing vent flow (SCVF) is needed to support strategic methane reduction targets and mitigate explosion and groundwater quality risks. This paper assessed which of 451 990 Alberta oil and gas wells should have been (or will be) tested for SCVF and/or GM according to regulations, and compared the results with the provincial GM testing database. As of 2017, GM testing was required on 3.5%, and reported for 0.75%, of Alberta's energy wells. Similarly, SCVF testing was required on 58.2%, and reported for 6.2%, of all wells. An estimated 14.5% of all wells were legally abandoned before GM and SCVF testing regulations existed. All of the remaining wells will require SCVF testing prior to legal abandonment, and an estimated 32.9% to 75.5% of the total will not require GM testing before abandonment based on current regulations. The cumulative number of 'serious' GM reports that have remained open since submission has continuously been increasing each year, which contradicts the requirement for repair within 90 days, suggesting regulations are not enforced. The GM testing procedure is inadequate for quantitative testing. We conclude that fugitive methane emissions, and in particular gas migration, are not well constrained in Alberta. © 2020 Society of Chemical Industry and John Wiley & Sons, Ltd. [ABSTRACT FROM AUTHOR]

African immigrant children and youth have some of the poorest social and mental health outcomes in Canada. Although parenting challenges have been widely documented as a key driver of these outcomes, limited systematic research has investigated this phenomenon. In this paper, we report the results of a study examining parenting challenges among a sample of African immigrant parents in Alberta, Canada. We relied on the theoretical lens of transnationalism to collect and analyse data from a purposive sample of African community leaders (n = 14), African immigrant parents (n = 32), and a range of stakeholders (n = 30). Our thematic data analysis revealed several intricately intertwined parenting challenges, organized around six overarching themes, namely, cultural incompatibility, family tension, state interference, limited social supports, poor access to services, and low socioeconomic status. We present these themes and the policy and service implications of our findings. [ABSTRACT FROM AUTHOR]

Mathematical programming models of farmers' cropping decisions must first be calibrated before they can be used to examine agricultural producer responses to policy changes. In this paper, we compare three calibration approaches for disentangling the risk parameter from the parameters of the cost function: one assumes a logarithmic utility function, while the others employ an exponential utility function. Historical crop insurance data for southern Alberta, Canada, are used to assess the calibration performance of the three approaches, and sensitivity analysis is implemented to test whether the changes in the optimal land allocation caused by the changes in the values of the parameters are practically reasonable. Only one of the three models is of practical use for policy analysis because it can recover the true values of the parameters and the results of sensitivity analysis are reasonable. [ABSTRACT FROM AUTHOR]

Aims: To model regional vegetation cycles through data fusion methods for creating a 30‐m daily vegetation product from 2000 to 2018 and to analyze annual vegetation trends over this time period. Location: The Yellowhead Bear Management Area, a 31,180‐km2 area in west central Alberta, Canada. Methods: In this paper, we use Dynamic Time Warping (DTW) as a data fusion technique to combine Landsat 5, 7 and 8 satellite data and Moderate Resolution Image Spectroradiometer (MODIS) Aqua and Terra imagery, to quantify daily vegetation using Enhanced Vegetation Index at a 30‐m resolution, for the years 2000–2018. We validated this approach, entitled DRIVE (Daily Remote Inference of VEgetation), using imagery acquired from a network of ground cameras. Results: When DRIVE was compared to start and end of season dates (SOS and EOS respectively) derived from ground cameras, correlations were r = 0.73 at SOS and r = 0.85 at EOS with a mean absolute error of 7.17 days at SOS and 10.76 days at EOS. Results showed that DRIVE accurately increased spatial and temporal resolution of remote‐sensing data. We demonstrated that SOS is advancing at a maximum rate of 0.78 days per year temporally over the 18‐year time period for varying elevation gradients and land cover classes over the region. Conclusions: With DRIVE, we demonstrate the utility of DTW in quantifying vegetation cycles over a large heterogeneous region and determining how changing climate is affecting regional vegetation. DRIVE may prove to be an important method to determine how carbon sequestration is varying within fine‐scale individual plant communities in response to changing climate and likely will be beneficial to wildlife movement and habitat selection studies examining the varying response of wildlife species to changing vegetation cycles under shifting climatic conditions. [ABSTRACT FROM AUTHOR]

Copyright of Canadian Review of Sociology is the property of Wiley-Blackwell 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.)

Copyright of Canadian Review of Sociology is the property of Wiley-Blackwell 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.)

This paper has examined the relative significance of uncertainty in future climate projections from a subset of the coupled model intercomparison project phase 5 (CMIP5) global climate models for the Prairie Provinces of western Canada. This was undertaken by determining: (a) the contribution of model and scenario uncertainty and natural variability to the total variance of these future projections, and (b) the timing of climate signal emergence from the background noise of natural climate variability. We examined future projections of mean temperature, precipitation and summer climate moisture index (CMI). In this region, natural climate variability plays an important role in future uncertainty until the end of this century, particularly for precipitation and to a lesser extent, summer CMI. Model uncertainty also contributes to total uncertainty for these variables throughout this century, while scenario uncertainty becomes more important towards the end of the century. For the region as a whole, significant climate change (i.e., signal/noise >2) occurs earliest for summer mean temperature, with median time of emergence around 2035 for the RCP8.5 radiative forcing scenario. Although the median precipitation signal emerges from the noise (i.e., signal/noise >1) around the 2070s in winter and the 2080s in spring, significant values do not occur in any season for this variable before 2100. For summer CMI, the median time of emergence for significant change is around 2085. At the grid scale, signal‐to‐noise ratios are significant for all seasons for mean surface air temperature, with earliest times of emergence occurring in summer. In contrast, the summer precipitation signal is not significant this century; for summer CMI, significant values are obtained in the eastern half of the region, occurring from about 2065 onwards. Median times of emergence are towards the end of the century for summer CMI in western Saskatchewan and in Alberta, although some areas of Alberta do not exhibit significant signals this century. [ABSTRACT FROM AUTHOR]

Aim: This paper outlines the transformation of youth mental health services in Edmonton, Alberta, a large city in Western Canada. We describe the processes and challenges involved in restructuring how services and care are delivered to youth (11‐25 years old) with mental health needs based on the objectives of the pan‐Canadian ACCESS Open Minds network. Methods: We provide a narrative review of how youth mental health services have developed since our engagement with the ACCESS Open Minds initiative, based on its five central objectives of early identification, rapid access, appropriate care, continuity of care, and youth and family engagement. Results: Building on an initial community mapping exercise, a service network has been developed; teams that were previously age‐oriented have been integrated together to seamlessly cover the age 11 to 25 range; early identification has thus far focused on high‐school populations; and an actual drop‐in space facilitates rapid access and linkages to appropriate care within the 30‐day benchmark. Conclusions: Initial aspects of the transformation have relied on restructuring and partnerships that have generated early successes. However, further transformation over the longer term will depend on data demonstrating how this has impacted clinical outcomes and service utilization. Ultimately, sustainability in a large urban centre will likely involve scaling up to a network of similar services to cover the entire population of the city. [ABSTRACT FROM AUTHOR]

Polycyclic aromatic hydrocarbons (PAHs) are persistent pollutants of concern. A process-based model of the PAH degradation can improve our understanding of ecological drivers and processes. In this paper, a process-based biogeochemistry model, DeNitrification-DeComposition (DNDC) is modified to simulate the dynamics of PAHs degradation in soils at abandoned oil and gas well sites. This new version of DNDC-Organic Pollutants, called DNDC-OP, coupled the rates of PAH degradation with dynamics of soil, vegetation and climate, such as soil moisture and temperature. The model was parameterized and validated against datasets of four soil PAHs: pyrene, fluorene, chrysene and anthracene, at three different abandoned oil and gas well site locations in Alberta, Canada. The sensitivity of the parameters was analyzed and tested. The simulated results were in good agreement with the measured data with a coefficient of determination (R²) of 70 to 97%, and the root mean square error (RMSE) of 4.5 to 9.1 at all three sites. We also evaluated the influence of environmental factors, such as soil temperature and moisture, on the degradation of PAHs. An increased degradation of all four PAHs occurred with increasing soil moisture content. An increase of soil temperature from 10 to 20°C and subsequently to 25°C resulted in a decreased appearance of all four PAHs from the three well sites. The result shows that this model can be used as a tool for evaluating PAH degradation for effective reclamation strategies. [ABSTRACT FROM AUTHOR]

As boreal forests rapidly warm due to anthropogenic climate change, long‐term baseline community data are needed to effectively characterize the corresponding ecological changes that are occurring in these forests. The combined seasonal dynamics (SEADYN) and annual dynamics (ANNDYN) data set, which documents the vegetative changes in boreal forests during the snow‐free period, is one such source of baseline community data. These data were collected by George H. La Roi and colleagues in Alberta, Canada from 1980 to 2015 within permanent sampling plots established in the Hondo‐Slave Lake area (eight stands; 1980–2015) in central Alberta and the Athabasca Oil Sands (AOS) region (17 stands; 1981–1984) near Fort McMurray in northeastern Alberta. Various data were collected, with temporal and spatial coverage differing by data set. These data sets include, but are not limited to, cover of each identified vascular plant and bryoid (moss, liverwort, and lichen) species; forest mensuration; forest litter production; and soil temperature and moisture. Notably, permanent sampling plots were set up as a grid, which will facilitate analyses of spatial relations. These data can be used to analyze long‐term changes in seasonal dynamics and succession within boreal forest communities and serve as a baseline for comparison with future forest conditions in unmanaged, managed, and reclaimed forests. Data are released under a CC‐BY license; please cite this data paper when using the data for analyses. [ABSTRACT FROM AUTHOR]

Abstract: Price volatility complicates price discovery and creates risks for cattle producers. This paper analyzes volatility spillovers in the western Canadian beef cattle supply chain. A modified bivariate VAR‐BEKK‐GARCH model is used to examine spillovers and account for asymmetries associated with rising versus falling markets. The spillovers that are found are unidirectional from input to output markets. Spillovers tended to be stronger when cattle prices are depressed and feed costs are rising. Volatility transmission is also flows from feed barley to feeder cattle markets, but volatility does not flow in the opposite direction nor does it advance by more than one level in the supply chain. La volatilité des prix complique la découverte des prix et crée des risques pour les éleveurs de bétail. Cet article analyse les répercussions de la volatilité au sein de la chaîne d'approvisionnement des bovins d'élevage. Un modèle VAR‐BEKK‐GARCH modifié à deux variables sert à l'examen des répercussions et tient compte des asymétries associées aux marchés à la hausse et à la baisse. Les répercussions décelées sont unidirectionnelles du marché des intrants aux produits. Les répercussions semblent plus fortes lorsque les prix des bovins sont bas, et les coûts de fourrage à la hausse. Le transfert de la volatilité se fait aussi sentir de l'orge de fourrage aux marchés de bovins d'engraissement, mais l'inverse ne survient pas et elle ne progresse pas de plus d'un niveau dans la chaîne d'approvisionnement. [ABSTRACT FROM AUTHOR]

Abstract: Background: The increase in the incidence of dementia in the aging population and the decrease in the availability of informal caregivers put pressure on continuing care systems to care for a growing number of people with disabilities. Policy changes in the continuing care system need to address this shift in the population structure. One of the most effective tools for assessing policies in complex systems is system dynamics. Nevertheless, this method is underused in continuing care capacity planning. Methods: A system dynamics model of the Alberta Continuing Care System was developed using stylized data. Sensitivity analyses and policy evaluations were conducted to demonstrate the use of system dynamics modelling in this area of public health planning. We focused our policy exploration on introducing staff/resident benchmarks in both supportive living and long‐term care (LTC). Results: The sensitivity analyses presented in this paper help identify leverage points in the system that need to be acknowledged when policy decisions are made. Our policy explorations showed that the deficits of staff increase dramatically when benchmarks are introduced, as expected, but at the end of the simulation period, the difference in deficits of both nurses and health care aids are similar between the 2 scenarios tested. Modifying the benchmarks in LTC only versus in both supportive living and LTC has similar effects on staff deficits in long term, under the assumptions of this particular model. Conclusion: The continuing care system dynamics model can be used to test various policy scenarios, allowing decision makers to visualize the effect of a certain policy choice on different system variables and to compare different policy options. Our exploration illustrates the use of system dynamics models for policy making in complex health care systems. [ABSTRACT FROM AUTHOR]

This paper examines the demand for hockey game trips among metropolitan and nonmetropolitan residents of Alberta, Canada. Using data on both revealed and stated preference game-trip behavior from a telephone survey conducted throughout Alberta, we estimate the effect of ticket prices, team quality, arena amenities, and capacity on the latent demand for National Hockey League hockey games. We find that lower ticket prices, higher team quality, and additional capacity encourage attendance. In the status quo scenario, consumer surplus per game is $50 for those who had attended hockey games and about 50% less for those who had not attended games. Exploiting the stated preference data, we develop a number of other consumer surplus estimates. We also include travel costs in the estimation of the demand function and estimate the full value of the game trip considering both ticket prices and travel costs. Sold-out arenas in Calgary and Edmonton generate annual consumption benefits of $40 and $35 million when only ticket prices are used to calculate consumer surplus (i.e., excluding travel costs). Considering the full-price consumer surplus for the Calgary Flames of $103 per game trip, the annual consumption benefits may be as high as $82 million. [ABSTRACT FROM AUTHOR]

Shaft sinking through solid rock, which contains little or no water, poses little difficulty. However, when loose, water-bearing strata have to be contended with, water control measures and pumping facilities are needed. Shaft sinking in the Athabasca Basin requires sinking through water bearing sandstone which can be highly fractured. Intersection of local zones of extensive fracturing results in the potential for high water inflows with hydrostatic pressures of up to 5 MPa. Typically cementitious grouting is carried out ahead of each shaft sinking interval as a water control strategy. Shaft sinking performance which can be quantified in terms of rate of advance is highly dependent on the days spent at each interval grouting before sinking can advance to the next interval. This paper presents the shaft sinking experience in Athabasca Basin and how some of this is translated into geoscientific investigations for future shafts. A comparison of geoscientific data collected from future shafts at McArthur River and other Cameco Corporation operations and project sites. The paper concludes with the strategies for better integration of hydrogeological, geotechnical and geophysical data. Schachtbau im standfesten Gebirge, das wenig oder kein Bergwasser aufweist, bereitet geringe Schwierigkeiten. Wenn jedoch lockere, wasserführende Schichten angetroffen werden, sind Wasserhaltungsmaßnahmen und Pumpeinrichtungen erforderlich. Beim Schachtteufen im Athabasca Becken werden wasserführende Sandsteine angetroffen, die stark zerlegt sein können. Lokale Verschnitte zwischen hoch zerlegten Zonen können zu starken Wasserzutritten mit Drücken bis zu 5 MPa führen. In der Regel werden Zementinjektionen vor jedem Abteufschritt ausgeführt, um die Wasserzutritte zu minimieren. Die Teufleistung hängt sehr stark von der Zeit ab, die für die Injektion benötigt wird, bevor der nächste Ausbruchschritt gemacht werden kann. Dieser Beitrag behandelt die Erfahrungen mit Schachtabteufen im Athabasca Becken, und wie ein Teil dieser Erfahrung in geowissenschaftliche Erkundungen für künftige Schächte einfließt. Geowissenschaftliche Daten von künftigen Schächten bei der McArthur River Mine und anderen Cameco Corporation Betrieben und Projekten werden verglichen. Der Beitrag schließt mit Strategien für eine bessere Integration von hydrogeologischen, geotechnischen und geophysikalischen Daten. [ABSTRACT FROM AUTHOR]

Presents a program of the 26th Annual Meeting of the American Society of Primatologists hosted by the Department of Anthropology and the University of Calgary in Alberta. Highlights of the program; Board of directors; Participants of the annual meeting.

When, why and how do policy mixes change and evolve? Much of the contemporary interest in such mixes is focused on distinguishing simple policies from more complex policy mixes, evaluating the relationships between single and multiple policy tools within a mix, and developing criteria to assess the likely performance of particular mixes. These are important and necessary analytical tasks. However, another required step in understanding policy mixes is to understand how and why mixes evolve and change over time and to determine whether any changes are an improvement. In this paper, we analyse the development of a complex policy mix in the case of reclamation and remediation of the Alberta oil sands from an earlier 'simple goal, single instrument' policy regime to a more complex one. This case study reveals the presence of at least two dynamic processes at work in policy mix development, with significant implications for the nature of the changes that result from them. Copyright © 2017 John Wiley & Sons, Ltd and ERP Environment [ABSTRACT FROM AUTHOR]

Implementing policies and laws is difficult in areas where there are interested parties with differing values, attitudes, and perceptions. Another challenge is the democratization of policy and including those who have been systematically excluded from the conversation. The main topic of this paper is human interactions with free-roaming horses (FRH) in Alberta. A multidimensional approach to policymaking is suggested by using situational mapping approaches that visually position and represent diverse perspectives on FRH. Drawing upon qualitative interviews with 24 landowners, business leaders, and First Nations/Métis who share land with FRH, we analyze four key themes: rural alienation, First Nations and the branding of horses, managing FRH on grazing leases, and the representation of FRH interests. Together, the four thematic foci illustrate diverse perspectives and shifting allegiances that exist within and between policy 'stakeholder' groups. We present situational mapping as a useful tool to be used by policymakers to address complex environmental problems that include multidimensional perspectives. Les problèmes liés aux politiques, les « audiences » et le pouvoir de la définition : les discours contradictoires et le cas des chevaux en liberté en Alberta La mise en œuvre des politiques et des lois est difficile dans les domaines où il y a des parties intéressées qui ont des valeurs, des attitudes et des perceptions différentes. Un autre problème est la démocratisation des politiques et l'inclusion de celles qui ont été systématiquement exclues de la conversation. Le thème principal de cette communication est celui des interactions humaines avec les chevaux en liberté (CL) en Alberta. Une approche multidimensionnelle à l'égard de l'élaboration des politiques est suggérée en utilisant des approches de cartographie situationnelle qui positionnent et représentent visuellement divers points de vue sur les CL. Nous appuyant sur des entrevues qualitatives avec 24 propriétaires fonciers, chefs d'entreprises et Premières Nations/Métis qui partagent le territoire avec les CL, nous analysons quatre thèmes principaux : l'aliénation rurale, les Premières Nations et le marquage des chevaux, la gestion des CL sur des baux de pâturages et la représentation des intérêts des CL. Ensemble, les quatre axes thématiques illustrent divers points de vue et allégeances changeantes qui existent au sein et entre les groupes « d'intervenants » s'intéressant aux politiques. Nous présentons la cartographie situationnelle comme un outil utile que les personnes qui élaborent des politiques peuvent utiliser pour résoudre des problèmes environnementaux complexes qui incluent des points de vue multidimensionnels. [ABSTRACT FROM AUTHOR]

Land use change models based on historical behavior have proven useful in predicting and understanding determinants of change. Such approaches are not possible where land use change data are absent. In this paper, we develop a normative spatial model that considers option values associated with land conversion between agriculture and forestry and their differing time scales. The model is applied in a case study regarding the potential for a cellulosic biofuel industry in Alberta. Results indicate the importance of future patterns of prices in influencing decisions to switch from agriculture to bioenergy production, and suggest that cellulosic plantations are not likely to prevail over agricultural land uses. Les modèles de changement d'affectation des terres basés sur les comportements historiques se sont avérés utiles pour la prédiction et la compréhension des facteurs de changements. Ces approches sont impossibles là où les données concernant les changements d'affectation des terres sont absentes. Cet article présente un modèle normatif spatial qui tient compte des valeurs d'option associées à la conversion des terres agricoles en terres forestières et à leurs différentes échelles de temps. L'application du modèle se fait dans une étude de cas au sujet du potentiel pour une industrie du biocarburant cellulosique en Alberta. Les résultats montrent l'importance de l'influence des futures structures de prix sur le choix de passer de l'agriculture à la production de bioénergie, et suggèrent que les plantations cellulosiques ne l'emporteront pas sur les affectations agricoles des terres. [ABSTRACT FROM AUTHOR]

Context An increasing number of medical schools around the world are implementing longitudinal integrated clerkships ( LICs). The University of Alberta's third-year LIC admits a small group of each class. Those not in the LIC undertake a rotation-based clerkship ( RBC). All students have a fourth-year RBC. Meaningful participation in patient care and guidance have been identified as affordances for work-based learning. Methods This qualitative study is part of an ongoing research programme conducted in a hermeneutic phenomenological frame. The overarching research question is: What is the lived experience of integrated community clerkship ( ICC) students in their clerkships? This paper focuses on an emic question, that is, one arising from the analysis, which was: What was the experience of ICC students in their transitioning to the fourth year? One-to-one reflective conversations with LIC students when they were at the end of their fourth year were the source of the material analysed. Transcripts were first analysed by each researcher and then co-analysed with an emphasis on overall meaning. Results are from conversations with 33 students from the first five LIC cohorts. Socio-cultural learning theory was used as an interpretive framework. Results This study identifies that the length and nature of placements led to continuity relationships for students with patients and teachers and meaningful participation in patient care. These are an interwoven set of affordances that facilitate learning in the ICC. Participants described the loss of these affordances in the RBC, resulting in diminished confidence, disruption of the learning trajectory and a re-forming of identity. Conclusion It is important for all medical schools with LICs followed by RBCs to consider the differences between these two clerkships as experienced by students in order to determine how best to support students as they navigate through both. Medical educators need to examine all of their clerkships to identify the affordances that support learning. [ABSTRACT FROM AUTHOR]

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This paper analyzes cattle killing by First Nations in Southern Alberta in the 1890s m light of different theoretical approaches to the issue of First Nations crime. This paper suggests that this form of criminal behaviour was not a result of cultural differences or cultural misunderstandings between First Nations and Europeans. Rather, this type of First Nations criminality was rooted in material circumstances characterized by extreme hunger, and was reflective of a process of resistance to state policies. The crime of cattle killing was, in part, a political act that was part of Treaty Seven First Nations efforts to oppose and change the Department of Indian Affairs rations policy. [ABSTRACT FROM AUTHOR]

Abstract. In our earlier studies of the supermarket industry in Edmonton, Alberta, we tested for predation in a spatial setting and found evidence which supported the predation hypothesis. In this paper we use data on the locations, entry, exit and market area populations of supermarkets in Edmonton to test whether the entry deterrence and timing-of-expansion implications of the reputation hypothesis are confirmed. We find that our time series data are consistent with entry's being deterred and with delayed opening of new supermarkets by the dominant established firm. [ABSTRACT FROM AUTHOR]

The findings reported in this paper were based on a representative, city wide sample ( N = 708) of Calgary youths (aged 15-24). Twenty six per cent of the respondents reported having used marijuana "in the past six months". Contrary to Smart' s (1970) differential school drop out hypothesis, no decline in drug use was reported by 17 and 18 year old students, As measured by Rotter's concept, internally oriented respondents were less apt than externals to use marijuana. As predicted, this correlation was stronger among high school than college respondents. Several other demographic correlates of marijuana use were found. [ABSTRACT FROM AUTHOR]

Though language manifests linearly, one word at a time, children must learn that words are embedded in constituents, which are in turn embedded in larger constituents. That is, they must learn that syntax is hierarchically structured. Prosody-speech melody and rhythm-is likewise hierarchically organized, with smaller prosodic constituents embedded in larger ones. This paper presents results showing that 20-month-olds ( N = 40) can use modifier + clause prosody to learn constituents at multiple levels in a hierarchically structured artificial grammar, but that they fail to learn from clause + modifier prosody. We consider several explanations for this asymmetry, and suggest that it may be due to the frequency of the two constructions in the input. Two parallel experiments with adults suggest that older learners may not be able to learn the prosodically marked constituents. Instead, adult responses are likely based on perceptually prominent boundary words. [ABSTRACT FROM AUTHOR]

Terrestrial conservation offsets have become a leading solution to the ecological consequences of Alberta's oil sands boom. The broad-based support for terrestrial offsets in the province is representative of a larger global trend toward the rescaling of environmental governance and greater use of market-based conservation models. A well-developed critical literature now documents some of the overarching logics and material implications of these 'neoliberal' approaches to conservation. Much of this scholarship has drawn on Marxian notions of accumulation by dispossession to raise concern that the use of market-based approaches serves to widen dispossession through increased enclosure and privatisation of both nonhuman nature and political discourse on issues of environment. While in many instances these concerns are justified, the mechanisms through which market-based conservation channels benefits to powerful societal actors may be more complicated than often assumed. Drawing from recent empirical research on attempts to establish markets in terrestrial conservation offsets in Alberta, Canada, this paper complicates some of the dominant narratives of privatisation associated with market-based conservation initiatives. Market-based conservation may, in some instances, be employed to expand a functionally public domain as a means of lubricating private wealth generation, suggesting the need for a more nuanced understanding of the relationship between market-based conservation, dispossession and accumulation. [ABSTRACT FROM AUTHOR]

Canada's post-mined oil sands will have a higher concentration of salts compared with freshwater peatlands that dominate the landscape. While rare, naturally occurring saline wetlands do exist in Alberta's Boreal Plains and may function as analogues for reclamation, however, little is known about their hydrology. This paper investigates the geochemical and hydrologic characteristics of a natural saline-spring peatland in Alberta's oil sands region. The fen is located within a saline groundwater discharge area connected to the erosional edge of the Grand Rapids Formation. Na+ (195-25,680 mgl−1) and Cl− (1785-56,249 mg l−1) were the dominant salts, and the fen transitioned sharply to freshwater along its margins because in part of subsurface mineral ridges that restricted shallow groundwater exchange. Salinity decreased from hypersaline to brackish along the local groundwater flow path but no active spring outlets were observed over the two-year study. Vertical groundwater discharge was minimal because of the very low permeability of the underlying sediments. Subsurface storage was exceeded during periods of high flow, resulting in flooding and surface runoff that was enhanced by the ephemerally connected pond network. These findings have implications for reclamation, as mechanisms such as subsurface mineral ridges may function as effective saline groundwater-control structures in the post-mined environment. Incorporating saline wetlands into regional monitoring networks will help to better quantify natural discharge, which has implications for belowground wastewater storage related to in situ bitumen extraction. Copyright © 2015 John Wiley & Sons, Ltd. [ABSTRACT FROM AUTHOR]

Introduction: Our objective was to explore the relation between patient age and postoperative opioid use up to 24 hours following pelvic organ prolapse (POP) surgery. Material and methods: We conducted a prospective cohort study following 335 women ranging in age from 26 to 82 years who underwent surgery for multi‐compartment POP at a tertiary center in Alberta, Canada. Patient characteristics were measured using baseline questionnaires. Perioperative data were collected from medical chart review during and up to 24 hours following surgery. We used logistic regression to analyze the odds of being opioid‐free and linear regression to analyze mean differences in opioid dose, measured as total morphine equivalent daily dose, exploring for a potential non‐linear effect of age. Adjusted models controlled for preoperative pain, surgical characteristics and patient health factors. Results: Overall, age was positively associated with greater odds of being opioid‐free in the first 24 hours after surgery (adjusted odds ratio per increasing year of age = 1.07, 95% confidence interval [CI] 1.04–1.09, n = 332 women). Among opioid users, age was inversely associated with total opioid dose (adjusted mean difference per increasing year of age = 0.71 mg morphine equivalent daily dose, 95% CI −0.99 to −0.44, n = 204 women). There was no evidence of a non‐linear relation between age and postoperative opioid use or dose. Conclusions: In the context of POP surgery, we found that younger women were more likely to use opioids after surgery and to use a higher dose in the first 24 hours when compared with older women. These findings support physicians to consider age when counseling POP patients regarding pain management after surgery, and to direct resources aimed at opioid‐free pain control towards younger patients. [ABSTRACT FROM AUTHOR]

Improving the calculation of land‐atmosphere fluxes of heat and water vapor in mountain terrain requires better resolution of thermally driven diurnal winds (i.e., valley, slope winds) due to differential heating by terrain and radiative fluxes. In this study, the Weather Research and Forecasting model is used to simulate flow in large‐eddy simulation (LES) mode over the complex terrain of the Fortress Mountain and Marmot Creek research basins, Kananaskis Valley, Canadian Rockies, Alberta in mid‐summer. The model was used to examine the temporal and spatial evolution of local winds and near‐surface boundary layer processes with variability in topography and elevation. Numerically resolving complex terrain wind flow effects require smaller grid cell size. However, the use of terrain‐following coordinates in most numerical weather prediction models results in large numerical errors when flow over steep terrain is simulated. These errors propagate through the domain and can result in numerical instability. To avoid this issue when simulating flow over steep terrain a local smoothing approach was used, where smoothing is applied only where slope exceeds some predetermined threshold. LES results from local smoothing were compared with a mesoscale model and LES with global smoothing. Simulations are evaluated using sounding data and meteorological stations. The differences in flow patterns and reversals in two mountain basins suggest that valley geometry and volume is relevant to the break up of inversion layers, removal of cold‐air pools, and strength of thermally driven winds. Key Points: Large‐eddy simulations in complex terrain utilizing smoothing techniques resolve thermally driven mountain flowsMesoscale flow interactions with mountainous terrain can influence valley windsTopographical differences in mountain basins affects local flows and cold‐air pooling [ABSTRACT FROM AUTHOR]

The objectives of this paper were to develop, evaluate, and apply the remote sensing based models for Canadian Water Quality Index (CWQI) and turbidity for the Bow River of Alberta. We used 31 scenes of Landsat-5 TM satellite data to establish the relationship between the planetary reflectance and the monthly ground measured data for the period of 5 years (i.e. 2006-2010). The four spectral bands (i.e. blue, green, red, and near infrared) were used to obtain the most suitable models from 26 different band combinations. The co-efficients of determination on the basis of red band were 0.91 for the CWQI model and 0.82 for the turbidity model. The best-fit models were validated with ground measured data and found that: 72% of the data showed 100% matching for the CWQI model and 83% of the data for the turbidity model. The Landsat-5 TM based CWQI and turbidity models were applied on all the scenes to obtain five CWQI classes (i.e. excellent, good, fair, marginal and poor), and six classes of turbidity (i.e. 0-10 NTU, 10-20 NTU, 20-30 NTU, 30-40 NTU, 40-50 NTU, >50 NTU). On the basis of percentages obtained for CWQI and turbidity classes, the ranks of years in terms of water quality from best to worst were: 2009, 2006, 2008, 2010, and 2007 respectively. The variation of river water quality in different years of interest was associated with the climatic changes. The most deteriorated water quality noted in two natural sub-regions included mixed grass and dry mixed grass, which could be related to irrigation-based farming. [ABSTRACT FROM AUTHOR]

Although market-based incentives have helped resolve many environmental challenges, conservation markets still play a relatively minor role in wildlife management. Establishing property rights for environmental goods and allowing trade between resource extractors and resource conservationists may offer a path forward in conserving charismatic species like whales, wolves, turtles, and sharks. In this paper, we provide a conceptual model for implementing a conservation market for wildlife and evaluate how such a market could be applied to three case studies for whales (minke [Balaenoptera acutorostrata], bowhead [Balaena mysticetus], and gray [Eschrictius robustus]). We show that, if designed and operated properly, such a market could ensure persistence of imperiled populations, while simultaneously improving the welfare of resource harvesters. [ABSTRACT FROM AUTHOR]

Please cite this paper as: Krauss et al. (2012) Respiratory tract versus cloacal sampling of migratory ducks for influenza A viruses: are both ends relevant? Influenza and Other Respiratory Viruses DOI: . Background Early studies in dabbling ducks showed that cloacal swabs yielded a larger number of avian influenza virus (AIV) isolates than did respiratory tract swabs. Historically, AIV surveillance has been performed by collecting cloacal or environmental fecal samples only. Highly pathogenic avian influenza H5N1 virus emerged in 1996 and replicated to higher titers in the respiratory rather than the gastrointestinal tract of ducks, prompting the collection of respiratory samples in addition to cloacal swabs from wild birds. Studies confirmed that some virus subtypes, especially H9 and highly pathogenic H5, are shed primarily through the respiratory tract and may not be detected in cloacal swabs. Objectives To examine prevalence and subtype differences for AIV isolates from cloacal or respiratory swabs of wild ducks and to determine whether individual respiratory tract samples should be included in AIV surveillance studies in wild birds. Methods Individual respiratory tract and cloacal swabs were collected from each of 1036 wild ducks in Alberta, Canada, during the month of August from 2007 to 2010 in an ongoing surveillance study. Virus isolation in eggs and subtype identification by antigenic and molecular methods were performed. Results and conclusions Respiratory tract and cloacal swabs yielded ten influenza virus HA subtypes representing 28 HA-NA combinations. Three HA-NA subtype combinations were found exclusively in respiratory tract samples. Only four HA subtypes (H1, H3, H4, and H7) were recovered from respiratory samples, but respiratory shedding was associated with the dominance of 1 year's subtype. Might respiratory shedding provide a risk assessment indicator? [ABSTRACT FROM AUTHOR]

Sociologists are increasingly directing attention toward social responses to climate change. As is true of any new field of inquiry, theoretical frameworks guiding the research to date have room for improvement. One advance could be achieved through closer engagement with Reflexivity Theory, particularly the work of Margaret Archer, who asks just how individuals come to give attention to certain problems, and formulate responses to them. Individuals vary significantly in regard to their understanding of and concern for anthropogenic climate change, and these standpoints in turn influence commitment to mitigation and adaptation. The emergent social interactions among all such agents in turn influence the morphogenetic trajectories through which social structures will evolve, but the role of 'meta-reflexives' is particularly crucial. Identifying pathways of individual climate change reflexivity can make a valuable contribution to our understanding of the potential for and nature of collective responses. In this paper, I explore climate change reflexivity, with particular attention to climate change meta-reflexives, through a qualitative analysis of personal interviews with residents of two small communities in Alberta, Canada. Applying Reflexivity Theory to this context articulates dimensions of reflexive processing not elaborated in current theoretical treatments, including future outlook and comfort with uncertainty, among others. [ABSTRACT FROM AUTHOR]