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https://www.readbyqxmd.com/read/29164278/metals-and-organohalogen-contaminants-in-bald-eagles-haliaeetus-leucocephalus-from-ontario-1991-2008
#1
P A Martin, K D Hughes, G D Campbell, J L Shutt
We examined the degree of exposure of lead (Pb), mercury (Hg), and several organohalogen contaminants and its potential impact on survival of bald eagles in Ontario from 1991 to 2008. Overall, results for 43 dead or dying bald eagles collected in the province indicate that 23% (10/43) of birds died of Pb poisoning and 9% (4/43) died of suspected Hg poisoning. Pb poisoning was diagnosed based on exceedances of toxicity thresholds in liver and kidney and supported by clinical observations, necropsy results, and histology findings when available...
November 21, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/29160219/complete-sequences-of-4-viral-hemorrhagic-septicemia-virus-ivb-isolates-and-their-virulence-in-northern-pike-fry
#2
Rodman G Getchell, Emily R Cornwell, Steven Bogdanowicz, Jose Andrés, William N Batts, Gael Kurath, Rachel Breyta, Joanna G Choi, John M Farrell, Paul R Bowser
Four viral hemorrhagic septicemia virus (VHSV) genotype IVb isolates were sequenced, their genetic variation explored, and comparative virulence assayed with experimental infections of northern pike Esox lucius fry. In addition to the type strain MI03, the complete 11183 bp genome of the first round goby Neogobius melanostomus isolate from the St. Lawrence River, and the 2013 and 2014 isolates from gizzard shad Dorosoma cepedianum die-offs in Irondequoit Bay, Lake Ontario and Dunkirk Harbor, Lake Erie were all deep sequenced on an Illumina platform...
November 21, 2017: Diseases of Aquatic Organisms
https://www.readbyqxmd.com/read/29154686/a-retrospective-summary-of-raptor-mortality-in-ontario-canada-1991-2014-including-the-effects-of-west-nile-virus
#3
Kathryn A Smith, G Douglas Campbell, David L Pearl, Claire M Jardine, Fernando Salgado-Bierman, Nicole M Nemeth
The causes of mortality of free-ranging raptors range from anthropogenic (e.g., trauma) to dynamic environmental conditions that may affect habitat suitability and prey availability. The province of Ontario, Canada, is vulnerable to anthropogenic and environmental changes because of its northern latitudes and expanding human populations, both of which may impact wildlife. We retrospectively evaluated diagnostic data from raptors submitted to the Ontario-Nunavut node of the Canadian Wildlife Health Cooperative (CWHC) from 1991 to 2014 (n=1,448)...
November 20, 2017: Journal of Wildlife Diseases
https://www.readbyqxmd.com/read/29117991/availability-of-naloxone-in-canadian-pharmacies-a-population-based-survey
#4
Alex M Cressman, Graham Mazereeuw, Qi Guan, Wenting Jia, Tara Gomes, David N Juurlink
BACKGROUND: Naloxone is life-saving when administered after opioid overdose. In March 2016, the Canadian government made the antidote available without prescription, but anecdotal reports suggest members of the public have difficulty in procuring it. We examined the availability of naloxone in community pharmacies across Canada. METHODS: We identified community pharmacies in Canada (n = 10 296) and randomly selected 506, stratified using proportionate allocation by population size...
November 8, 2017: CMAJ Open
https://www.readbyqxmd.com/read/29117234/compensatory-selection-for-roads-over-natural-linear-features-by-wolves-in-northern-ontario-implications-for-caribou-conservation
#5
Erica J Newton, Brent R Patterson, Morgan L Anderson, Arthur R Rodgers, Lucas M Vander Vennen, John M Fryxell
Woodland caribou (Rangifer tarandus caribou) in Ontario are a threatened species that have experienced a substantial retraction of their historic range. Part of their decline has been attributed to increasing densities of anthropogenic linear features such as trails, roads, railways, and hydro lines. These features have been shown to increase the search efficiency and kill rate of wolves. However, it is unclear whether selection for anthropogenic linear features is additive or compensatory to selection for natural (water) linear features which may also be used for travel...
2017: PloS One
https://www.readbyqxmd.com/read/29074166/association-between-high-environmental-heat-and-risk-of-acute-kidney-injury-among-older-adults-in-a-northern-climate-a-matched-case-control-study
#6
Rebecca K McTavish, Lucie Richard, Eric McArthur, Salimah Z Shariff, Rey Acedillo, Chirag R Parikh, Ron Wald, Piotr Wilk, Amit X Garg
BACKGROUND: An association between high heat and acute kidney injury (AKI) has been reported in warm climates. However, whether this association generalizes to a northern climate, with more variable temperatures, is unknown. STUDY DESIGN: Matched case-control study. SETTING & PARTICIPANTS: Our study focused on older adults (mean age, 80 years) in the northern climate of Ontario, Canada. 52,913 case patients who had a hospital encounter with AKI in April through September 2005 to 2012 were matched with 174,222 controls for exact date, age, sex, rural residence, income, and history of chronic kidney disease...
October 23, 2017: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/29064242/inferring-past-trends-in-lake-water-organic-carbon-concentrations-in-northern-lakes-using-sediment-spectroscopy
#7
Carsten Meyer-Jacob, Neal Michelutti, Andrew M Paterson, Don Monteith, Handong Yang, Jan Weckström, John P Smol, Richard Bindler
Changing lake water total organic carbon (TOC) concentrations are of concern for lake management because of corresponding effects on aquatic ecosystem functioning, drinking water resources and carbon cycling between land and sea. Understanding the importance of human activities on TOC changes requires knowledge of past concentrations; however, water-monitoring data are typically only available for the past few decades, if at all. Here, we present a universal model to infer past lake water TOC concentrations in northern lakes across Europe and North America that uses visible-near-infrared (VNIR) spectroscopy on lake sediments...
November 3, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/29043760/retail-food-environments-shopping-experiences-first-nations-and-the-provincial-norths
#8
Kristin Burnett, Kelly Skinner, Travis Hay, Joseph LeBlanc, Lori Chambers
INTRODUCTION: This paper looks at the market food environments of First Nations communities located in the provincial Norths by examining the potential retail competition faced by the North West Company (NWC) and by reporting on the grocery shopping experiences of people living in northern Canada. METHODS: We employed two methodological approaches to assess northern retail food environments. First, we mapped food retailers in the North to examine the breadth of retail competition in the provincial Norths, focussing specifically on those communities without year-round road access...
October 2017: Health Promotion and Chronic Disease Prevention in Canada
https://www.readbyqxmd.com/read/29043084/multi-species-genetic-connectivity-in-a-terrestrial-habitat-network
#9
Robby R Marrotte, Jeff Bowman, Michael G C Brown, Chad Cordes, Kimberley Y Morris, Melanie B Prentice, Paul J Wilson
BACKGROUND: Habitat fragmentation reduces genetic connectivity for multiple species, yet conservation efforts tend to rely heavily on single-species connectivity estimates to inform land-use planning. Such conservation activities may benefit from multi-species connectivity estimates, which provide a simple and practical means to mitigate the effects of habitat fragmentation for a larger number of species. To test the validity of a multi-species connectivity model, we used neutral microsatellite genetic datasets of Canada lynx (Lynx canadensis), American marten (Martes americana), fisher (Pekania pennanti), and southern flying squirrel (Glaucomys volans) to evaluate multi-species genetic connectivity across Ontario, Canada...
2017: Movement Ecology
https://www.readbyqxmd.com/read/28973088/association-between-immigrant-status-and-end-of-life-care-in-ontario-canada
#10
Christopher J Yarnell, Longdi Fu, Doug Manuel, Peter Tanuseputro, Therese Stukel, Ruxandra Pinto, Damon C Scales, Andreas Laupacis, Robert A Fowler
Importance: People who immigrate face unique health literacy, communication, and system navigation challenges, and they may have diverse preferences that influence end-of-life care. Objective: To examine end-of-life care provided to immigrants to Canada in the last 6 months of their life. Design, Setting, and Participants: This population-based cohort study (April 1, 2004, to March 31, 2015) included 967 013 decedents in Ontario, Canada, using validated linkages between health and immigration databases to identify immigrant (since 1985) and long-standing resident cohorts...
October 17, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/28934993/can-a-single-primary-care-paramedic-configuration-safely-transport-low-acuity-patients-in-air-ambulances
#11
Homer Tien, Bruce Sawadsky, Michael Lewell, Sean Moore, Michael Peddle, Alun Ackery, Brodie Nolan, Russell D MacDonald
OBJECTIVE: To determine if utilizing a single paramedic crew configuration is safe for transporting low acuity patients requiring only a primary care paramedic (PCP) level of care in Air Ambulances. METHODS: We studied single-PCP transports of low acuity patients done by contract air ambulance carriers, organized by Ornge (Ontario's Air Ambulance Service) for one year. We only included interfacility transports. We excluded all scene calls, and all Code 4 (emergent) calls...
September 22, 2017: CJEM
https://www.readbyqxmd.com/read/28925913/how-underserviced-rural-communities-approach-physician-recruitment-changes-following-the-opening-of-a-socially-accountable-medical-school-in-northern-ontario
#12
Oxana Mian, John C Hogenbirk, Wayne Warry, Roger P Strasser
INTRODUCTION: The Northern Ontario School of Medicine (NOSM) opened in 2005 with a social accountability mandate to address a long history of physician shortages in northern Ontario. The objective of this qualitative study was to understand the school's effect on recruitment of family physicians into medically underserviced rural communities of northern Ontario. METHODS: We conducted a multiple case study of 8 small rural communities in northern Ontario that were considered medically underserviced by the provincial ministry of health and had successfully recruited NOSM-trained physicians...
2017: Canadian Journal of Rural Medicine
https://www.readbyqxmd.com/read/28915430/care-interrupted-poverty-in-migration-and-primary-care-in-rural-resource-towns
#13
Kathleen Rice, Fiona Webster
Internationally, rural people have poorer health outcomes relative to their urban counterparts, and primary care providers face particular challenges in rural and remote regions. Drawing on ethnographic fieldnotes and 14 open-ended qualitative interviews with care providers and chronic pain patients in two remote resource communities in Northern Ontario, Canada, this article examines the challenges involved in providing and receiving primary care for complex chronic conditions in these communities. Both towns struggle with high unemployment in the aftermath of industry closure, and are characterized by an abundance of affordable housing...
September 4, 2017: Social Science & Medicine
https://www.readbyqxmd.com/read/28884406/similarities-and-differences-in-barriers-and-opportunities-affecting-climate-change-adaptation-action-in-four-north-american-landscapes
#14
Whitney R Lonsdale, Heidi E Kretser, Cheryl-Lesley B Chetkiewicz, Molly S Cross
Climate change presents a complex set of challenges for natural resource managers across North America. Despite recognition that climate change poses serious threats to species, ecosystems, and human communities, implementation of adaptation measures is not yet happening on a broad scale. Among different regions, a range of climate change trajectories, varying political contexts, and diverse social and ecological systems generate a myriad of factors that can affect progress on climate change adaptation implementation...
December 2017: Environmental Management
https://www.readbyqxmd.com/read/28861091/insufficient-chilling-effects-vary-among-boreal-tree-species-and-chilling-duration
#15
Rongzhou Man, Pengxin Lu, Qing-Lai Dang
Insufficient chilling resulting from rising winter temperatures associated with climate warming has been an area of particular interest in boreal and temperate regions where a period of cool temperatures in fall and winter is required to break plant dormancy. In this study, we examined the budburst and growth of trembling aspen (Populus tremuloides Michx.), balsam poplar (Populus balsamifera L.), white birch (Betula papyrifera Marsh.), black spruce (Picea mariana (Mill.) B.S.P.), white spruce (Picea glauca (Moench) Voss), jack pine (Pinus banksiana Lamb...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28817789/teach-our-children-stroke-education-for-indigenous-children-first-nations-ontario-canada-2009-2012
#16
Mary Ellen Hill, Pauline Bodnar, Robert Fenton, Brenda Mason, Grace Bandoh
BACKGROUND: Because of the heightened risk for stroke among indigenous people, we conducted this multiyear community case study from 2009 through 2012 to address stroke education needs among children aged 11 to 13 years residing in northern urban, rural, and remote First Nations in Ontario, Canada. The goal was to determine what young people understand about stroke and to develop an age-appropriate and culturally appropriate educational product. COMMUNITY CONTEXT: This project responded to First Nations requests that we educate their young people about the signs and symptoms of stroke and the need for early response...
August 17, 2017: Preventing Chronic Disease
https://www.readbyqxmd.com/read/28808682/effects-of-population-dispersal-on-regional-signaling-networks-an-example-from-northern-iroquoia
#17
John P Hart, Jennifer Birch, Christian Gates St-Pierre
The dispersal of Iroquoian groups from St. Lawrence River valley during the 15th and 16th centuries A.D. has been a source of archaeological inquiry for decades. Social network analysis presented here indicates that sites from Jefferson County, New York at the head of the St. Lawrence River controlled interactions within regional social signaling networks during the 15th century A.D. Measures indicate that Jefferson County sites were in brokerage liaison positions between sites in New York and Ontario. In the network for the subsequent century, to which no Jefferson County sites are assigned, no single group took the place of Jefferson County in controlling network flow...
August 2017: Science Advances
https://www.readbyqxmd.com/read/28799798/abstracts-from-dietetic-research-event-june-8-and-9-2017
#18
(no author information available yet)
St John's, Newfoundland was the host city of the 2017 Dietitians of Canada Annual Conference. Through the support of Dietitians of Canada and CFDR, the 2017 event was both an exciting and informative exchange of research and experience-sharing efforts that inspired attendees. The submissions for this year's Canadian Foundation for Dietetic Research (CFDR) event represented the diversity of dietetic research conducted within Canada. The topics highlighted from this year's abstracts included: Clinical Research; Community-based Nutritional Care; Determinants of Food Choice; Dietary Intake; Dietetic Practice and Education; Food Security; Nutrition and Health Education; Nutritional Assessment and Therapy; Nutrition Attitudes; Nutrition Strategy Development Patient Services; Professional Development; Vulnerable Groups and their Nutritional Needs; and, Wellness and Public Health...
September 2017: Canadian Journal of Dietetic Practice and Research
https://www.readbyqxmd.com/read/28798552/mental-health-perceptions-and-practices-of-a-cree-community-in-northern-ontario-a-qualitative-study
#19
David Danto, Russ Walsh
This project is a qualitative study of the mental health perceptions and practices of one Aboriginal community in the northern Ontario James and Hudson Bay region. Despite a shared history of trauma and oppression with the other five Cree communities in this area, as well as an added trauma of natural disaster and subsequent relocation, this community has been reported to have markedly lower rates of mental health services utilization and suicide. Interviews with eight community leaders and mental health services providers were conducted and analyzed in order to identify the features that distinguish this community...
2017: International Journal of Mental Health and Addiction
https://www.readbyqxmd.com/read/28763781/past-year-cannabis-use-and-problematic-cannabis-use-among-adults-by-ethnicity-in-ontario
#20
Andrew Tuck, Hayley A Hamilton, Branka Agic, Anca R Ialomiteanu, Robert E Mann
BACKGROUND: Rates of cannabis use differ around the world; in Ontario, the rate of use has been stable since about 2005. Understanding which population groups are at greater risk for problematic cannabis use can help reduce long-term health effects and service expenses. The aim of this study was to explore differences in cannabis use among Canadian adults of different ethnic origins living in Ontario. METHODS: Data are based on telephone interviews with 11,560 respondents and are derived from multiple cycles (2005-2011) of the Centre for Addiction and Mental Health's (CAMH) Monitor survey, an ongoing cross-sectional survey of adults in Ontario, Canada, aged 18 years and older...
July 20, 2017: Drug and Alcohol Dependence
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