keyword
MENU ▼
Read by QxMD icon Read
search

Yukon

keyword
https://www.readbyqxmd.com/read/29774975/signals-of-large-scale-climate-drivers-hatchery-enhancement-and-marine-factors-in-yukon-river-chinook-salmon-survival-revealed-with-a-bayesian-life-history-model
#1
Curry J Cunningham, Peter A H Westley, Milo D Adkison
Understanding how species might respond to climate change involves disentangling the influence of co-occurring environmental factors on population dynamics, and is especially problematic for migratory species like Pacific salmon that move between ecosystems. To date, debate surrounding the causes of recent declines in Yukon River Chinook salmon (Oncorhynchus tshawytscha) abundance has centered on whether factors in freshwater or marine environments control variation in survival, and how these populations at the northern extremity of the species range will respond to climate change...
May 18, 2018: Global Change Biology
https://www.readbyqxmd.com/read/29770097/gonorrhea-in-canada-2010-2015
#2
Y Choudhri, J Miller, J Sandhu, A Leon, J Aho
Background: Gonorrhea is the second most commonly reported sexually transmitted infection (STI) in Canada after chlamydia, and rates for this STI have been increasing since 1997. Objective: To summarize trends observed in gonorrhea rates for 2010-2015 in Canada. Methods: Laboratory-confirmed cases of gonorrhea are reported to the Public Health Agency of Canada (PHAC) by all of the Canadian provinces and territories. The overall national rate was computed, as were rates per sex, age group and province/territory...
February 1, 2018: Canada Communicable Disease Report, Relevé des Maladies Transmissibles Au Canada
https://www.readbyqxmd.com/read/29759976/missed-opportunities-for-prevention-of-vertical-hiv-transmission-in-canada-1997-2016-a-surveillance-study
#3
Ari Bitnun, Terry Lee, Jason Brophy, Lindy M Samson, Fatima Kakkar, Wendy Vaudry, Ben Tan, Deborah M Money, Joel Singer, Laura J Sauvé, Ariane Alimenti
BACKGROUND: Vertical HIV transmission has declined in Canada, but missed opportunities for prevention continue to occur. We sought to determine the adequacy, and changes over time in adequacy, of uptake of maternal and neonatal antiretroviral therapy for the prevention of vertical HIV transmission, and to determine the vertical transmission rate over time and according to adequacy of antenatal antiretroviral therapy during the combination antiretroviral therapy era in Canada. METHODS: The Canadian Perinatal HIV Surveillance Program collects data annually through retrospective chart review concerning HIV-infected women and their infants...
May 10, 2018: CMAJ Open
https://www.readbyqxmd.com/read/29723816/semi-passive-in-situ-pilot-scale-bioreactor-successfully-removed-sulfate-and-metals-from-mine-impacted-water-under-subarctic-climatic-conditions
#4
Guillaume Nielsen, Ido Hatam, Karl A Abuan, Amelie Janin, Lucie Coudert, Jean Francois Blais, Guy Mercier, Susan A Baldwin
Mine drainage contaminated with metals is a major environmental threat since it is a source of water pollution with devastating effects on aquatic ecosystems. Conventional active treatment technologies are prohibitively expensive and so there is increasing demand to develop reliable, cost-effective and sustainable passive or semi-passive treatment. These are promising alternatives since they leverage the metabolism of microorganisms native to the disturbed site at in situ or close to in situ conditions. Since this is a biological approach, it is not clear if semi-passive treatment would be effective in remote locations with extremely cold weather such as at mines in the subarctic...
April 23, 2018: Water Research
https://www.readbyqxmd.com/read/29688543/natural-selection-and-origin-of-a-melanistic-allele-in-north-american-gray-wolves
#5
Rena M Schweizer, Arun Durvasula, Joel Smith, Samuel H Vohr, Daniel R Stahler, Marco Galaverni, Olaf Thalmann, Douglas W Smith, Ettore Randi, Elaine A Ostrander, Richard E Green, Kirk E Lohmueller, John Novembre, Robert K Wayne
Pigmentation is often used to understand how natural selection affects genetic variation in wild populations since it can have a simple genetic basis, and can affect a variety of fitness-related traits (e.g., camouflage, thermoregulation, and sexual display). In gray wolves, the K locus, a β-defensin gene, causes black coat color via a dominantly inherited KB allele. The allele is derived from dog-wolf hybridization and is at high frequency in North American wolf populations. We designed a DNA capture array to probe the geographic origin, age, and number of introgression events of the KB allele in a panel of 331 wolves and 20 dogs...
May 1, 2018: Molecular Biology and Evolution
https://www.readbyqxmd.com/read/29674938/a-survey-of-beetles-coleoptera-from-the-tundra-surrounding-the-nunalleq-archaeological-site-quinhagak-southwestern-alaska
#6
Véronique Forbes, Derek Sikes
This paper presents the results of a survey of beetles conducted in the vicinity of the archaeological site of Nunalleq, a pre-contact (16th -17th century AD) indigenous forager settlement located near the modern Yup'ik village of Quinhagak, in the Yukon-Kuskokwim delta, southwestern Alaska. Records and habitat data are reported for 74 beetle taxa collected in tundra, riparian, aquatic and anthropogenic environments from a region of Alaska that has been poorly studied by entomologists. This includes the first mainland Alaskan record for the byrrhid Simplocaria metallica (Sturm)...
2018: Biodiversity Data Journal
https://www.readbyqxmd.com/read/29610336/origins-and-spread-of-fluted-point-technology-in-the-canadian-ice-free-corridor-and-eastern-beringia
#7
Heather L Smith, Ted Goebel
Fluted projectile points have long been recognized as the archaeological signature of early humans dispersing throughout the Western Hemisphere; however, we still lack a clear understanding of their appearance in the interior "Ice-Free Corridor" of western Canada and eastern Beringia. To solve this problem, we conducted a geometric morphometric shape analysis and a phylogenetic analysis of technological traits on fluted points from the archaeological records of northern Alaska and Yukon, in combination with artifacts from further south in Canada, the Great Plains, and eastern United States to investigate the plausibility of historical relatedness and evolutionary patterns in the spread of fluted-point technology in the latest Pleistocene and earliest Holocene...
April 2, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29552455/impact-of-smoke-free-housing-policy-lease-exemptions-on-compliance-enforcement-and-smoking-behavior-a-qualitative-study
#8
Pamela Kaufman, Julie Kang, Ryan David Kennedy, Pippa Beck, Roberta Ferrence
This paper investigates the impacts of smoke-free housing policies on compliance, enforcement and smoking behavior. From 2012 to 2014, we studied two affordable housing providers in Canada with comprehensive smoke-free policies: Waterloo Regional Housing that required new leases to be non-smoking and exempted existing leases, and Yukon Housing Corporation that required all leases (existing and new) to be non-smoking. Focus groups and key informant interviews were conducted with 31 housing and public health staff involved in policy development and implementation, and qualitative interviews with 56 tenants...
June 2018: Preventive Medicine Reports
https://www.readbyqxmd.com/read/29483874/cardiac-autonomic-modulations-and-psychological-correlates-in-the-yukon-arctic-ultra-the-longest-and-the-coldest-ultramarathon
#9
Lea C Rundfeldt, Martina A Maggioni, Robert H Coker, Hanns-Christian Gunga, Alain Riveros-Rivera, Adriane Schalt, Mathias Steinach
Studies on human physical performance in extreme environments have effectively approached the investigation of adaptation mechanisms and their physiological limits. As scientific interest in the interplay between physiological and psychological aspects of performance is growing, we aimed to investigate cardiac autonomic control, by means of heart rate variability, and psychological correlates, in competitors of a subarctic ultramarathon, taking place over a 690 km course (temperatures between +5 and -47°C)...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29479253/changes-in-the-incidence-and-surgical-treatment-of-ankyloglossia-in-canada
#10
Michelle Lisonek, Shiliang Liu, Susie Dzakpasu, Aideen M Moore, K S Joseph
Background: Recent reports show increases in rates of ankyloglossia and frenotomy in British Columbia. We carried out a study to determine temporal trends and regional variations in ankyloglossia and frenotomy in Canada. Methods: The study included all hospital-based live births in Canada (excluding Quebec) between April 2002 and March 2015, with information obtained from the Canadian Institute for Health Information. Information on ankyloglossia and frenotomy was obtained from records of hospital admission for childbirth...
October 2017: Paediatrics & Child Health
https://www.readbyqxmd.com/read/29447202/nitrogen-isotopes-suggest-a-change-in-nitrogen-dynamics-between-the-late-pleistocene-and-modern-time-in-yukon-canada
#11
Farnoush Tahmasebi, Fred J Longstaffe, Grant Zazula
A magnificent repository of Late Pleistocene terrestrial megafauna fossils is contained in ice-rich loess deposits of Alaska and Yukon, collectively eastern Beringia. The stable carbon (δ13C) and nitrogen (δ15N) isotope compositions of bone collagen from these fossils are routinely used to determine paleodiet and reconstruct the paleoecosystem. This approach requires consideration of changes in C- and N-isotope dynamics over time and their effects on the terrestrial vegetation isotopic baseline. To test for such changes between the Late Pleistocene and modern time, we compared δ13C and δ15N for vegetation and bone collagen and structural carbonate of some modern, Yukon, arctic ground squirrels with vegetation and bones from Late Pleistocene fossil arctic ground squirrel nests preserved in Yukon loess deposits...
2018: PloS One
https://www.readbyqxmd.com/read/29407189/community-based-monitoring-as-the-practice-of-indigenous-governance-a-case-study-of-indigenous-led-water-quality-monitoring-in-the-yukon-river-basin
#12
Nicole J Wilson, Edda Mutter, Jody Inkster, Terre Satterfield
No abstract text is available yet for this article.
March 15, 2018: Journal of Environmental Management
https://www.readbyqxmd.com/read/29377127/dental-therapists-linked-to-improved-dental-outcomes-for-alaska-native-communities-in-the-yukon-kuskokwim-delta
#13
Donald L Chi, Dane Lenaker, Lloyd Mancl, Matthew Dunbar, Michael Babb
OBJECTIVES: Dental Health Aide Therapists (DHATs) have been part of the dental workforce in Alaska's Yukon-Kuskokwim (YK) Delta since 2006. They are trained to provide preventive and restorative care such as filling and extractions. In this study, we evaluated community-level dental outcomes associated with DHATs. METHODS: This was a secondary data analysis of Alaska Medicaid and electronic health record data for individuals in Alaska's YK Delta (2006-2015). The independent variable was the number of DHAT treatment days in each community...
January 29, 2018: Journal of Public Health Dentistry
https://www.readbyqxmd.com/read/29332007/impacts-of-canada-s-minimum-age-for-tobacco-sales-mats-laws-on-youth-smoking-behaviour-2000-2014
#14
Russell Clarence Callaghan, Marcos Sanches, Jodi Gatley, James K Cunningham, Michael Oliver Chaiton, Robert Schwartz, Susan Bondy, Claire Benny
BACKGROUND: Recently, the US Institute of Medicine has proposed that raising the minimum age for tobacco purchasing/sales to 21 years would likely lead to reductions in smoking behavior among young people. Surprisingly few studies, however, have assessed the potential impacts of minimum-age tobacco restrictions on youth smoking. OBJECTIVE: To estimate the impacts of Canadian minimum age for tobacco sales (MATS) laws on youth smoking behaviour. DESIGN: A regression-discontinuity design, using seven merged cycles of the Canadian Community Health Survey, 2000-2014...
January 13, 2018: Tobacco Control
https://www.readbyqxmd.com/read/29330602/ecosystem-carbon-emissions-from-2015-forest-fires-in-interior-alaska
#15
Christopher Potter
BACKGROUND: In the summer of 2015, hundreds of wildfires burned across the state of Alaska, and consumed more than 1.6 million ha of boreal forest and wetlands in the Yukon-Koyukuk region. Mapping of 113 large wildfires using Landsat satellite images from before and after 2015 indicated that nearly 60% of this area was burned at moderate-to-high severity levels. Field measurements near the town of Tanana on the Yukon River were carried out in July of 2017 in both unburned and 2015 burned forested areas (nearly adjacent to one-another) to visually verify locations of different Landsat burn severity classes (low, moderate, or high; LBS, MBS, HBS)...
January 8, 2018: Carbon Balance and Management
https://www.readbyqxmd.com/read/29329365/a-formative-evaluation-of-two-fasd-prevention-communication-strategies
#16
David L Driscoll, Victoria R Barnes, Janet M Johnston, Richard Windsor, Ryan Ray
Aims: To evaluate the feasibility, acceptability and effectiveness of placing FASD prevention messages in the women's restrooms of establishments serving alcohol in Alaska and the Yukon, regions with high rates of FASD. Methods: Our team placed an FASD educational poster, and posters affixed to a pregnancy test dispenser, in women's restrooms of bars and restaurants. We compared drinking behaviors and knowledge and beliefs about FASD among participants at baseline and at follow-up...
January 10, 2018: Alcohol and Alcoholism: International Journal of the Medical Council on Alcoholism
https://www.readbyqxmd.com/read/29320572/international-migration-patterns-of-red-throated-loons-gavia-stellata-from-four-breeding-populations-in-alaska
#17
COMPARATIVE STUDY
Sarah E McCloskey, Brian D Uher-Koch, Joel A Schmutz, Thomas F Fondell
Identifying post-breeding migration and wintering distributions of migratory birds is important for understanding factors that may drive population dynamics. Red-throated Loons (Gavia stellata) are widely distributed across Alaska and currently have varying population trends, including some populations with recent periods of decline. To investigate population differentiation and the location of migration pathways and wintering areas, which may inform population trend patterns, we used satellite transmitters (n = 32) to describe migration patterns of four geographically separate breeding populations of Red-throated Loons in Alaska...
2018: PloS One
https://www.readbyqxmd.com/read/29192242/impact-related-microspherules-in-late-pleistocene-alaskan-and-yukon-muck-deposits-signify-recurrent-episodes-of-catastrophic-emplacement
#18
Jonathan T Hagstrum, Richard B Firestone, Allen West, James C Weaver, Ted E Bunch
Large quantities of impact-related microspherules have been found in fine-grained sediments retained within seven out of nine, radiocarbon-dated, Late Pleistocene mammoth (Mammuthus primigenius) and bison (Bison priscus) skull fragments. The well-preserved fossils were recovered from frozen "muck" deposits (organic-rich silt) exposed within the Fairbanks and Klondike mining districts of Alaska, USA, and the Yukon Territory, Canada. In addition, elevated platinum abundances were found in sediment analysed from three out of four fossil skulls...
November 30, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29182486/two-new-species-of-staphylocystoides-yamaguti-1959-cyclophyllidea-hymenolepididae-from-the-masked-shrew-sorex-cinereus-in-north-america
#19
Vasyl V Tkach, John Mike Kinsella, Stephen E Greiman
Two new species of Staphylocystoides are described from masked shrews Sorex cinereus: Staphylocystis oligospinosus n. sp. was collected from the vicinity of Missoula, Montana, United States and Staphylocystoides parasphenomorphus n. sp. was collected from the vicinity of Whitehorse, Yukon Territory, Canada. Morphological differentiation from known species is provided. Both species are morphologically closest to Staphylocystoides sphenomorphus and to each other. Among other characters, Staphylocystoides oligospinosus n...
January 9, 2018: Journal of Parasitology
https://www.readbyqxmd.com/read/29168615/impact-of-rewilding-species-introductions-and-climate-change-on-the-structure-and-function-of-the-yukon-boreal-forest-ecosystem
#20
Rudy Boonstra, Stan Boutin, Thomas S Jung, Charles J Krebs, Shawn Taylor
Community and ecosystem changes are happening in the pristine boreal forest ecosystem of the Yukon for 2 reasons. First, climate change is affecting the abiotic environment (temperature, rainfall and growing season) and driving changes in plant productivity and predator-prey interactions. Second, simultaneously change is occurring because of mammal species reintroductions and rewilding. The key ecological question is the impact these faunal changes will have on trophic dynamics. Primary productivity in the boreal forest is increasing because of climatic warming, but plant species composition is unlikely to change significantly during the next 50-100 years...
March 2018: Integrative Zoology
keyword
keyword
21154
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"