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https://www.readbyqxmd.com/read/28434190/mixed-severity-fire-history-at-a-forest-grassland-ecotone-in-west-central-british-columbia-canada
#1
Jill E Harvey, Dan J Smith, Thomas T Veblen
This study examines spatially variable stand structure and fire-climate relationships at a low elevation forest-grassland ecotone in west central British Columbia, Canada. Fire history reconstructions were based on samples from 92 fire-scarred trees and stand demography from 27 plots collected over an area of about 7 km(2) . We documented historical chronologies of widespread fires and localized grassland fires between AD 1600 and 1900. Relationships between fire events, reconstructed values of the Palmer Drought Severity Index and annual precipitation were examined using superposed epoch and bivariate event analyses...
April 23, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28426426/pseudopecoelus-mccauleyi-n-sp-and-podocotyle-sp-digenea-opecoelidae-from-the-deep-waters-off-oregon-and-british-columbia-with-an-updated-key-to-the-species-of-pseudopecoelus-von-wicklen-1946-and-checklist-of-parasites-from-lycodes-cortezianus-perciformes-zoarcidae
#2
REVIEW
Charles K Blend, Norman O Dronen, Gabor R Racz, Scott L Gardner
Pseudopecoelus mccauleyi n. sp. (Opecoelidae: Opecoelinae) is described from the intestine of the bigfin eelpout, Lycodes cortezianus (Gilbert, 1890) (Perciformes: Zoarcidae), collected at 200-800 m depths in the Northeastern Pacific Ocean off Oregon and Vancouver Island, British Columbia. The new species is distinguished by possessing a unique combination of the following diagnostic characters: vitelline fields that extend to the posterior margin of the ventral sucker; a slender, tubular and sinuous seminal vesicle that extends some distance into the hindbody; an unspecialized, protuberant ventral sucker; a genital pore at pharynx level; lobed to deeply multilobed testes; a lobed ovary; and an egg size of 68-80 μm × 30-46 μm...
June 1, 2017: Acta Parasitologica
https://www.readbyqxmd.com/read/28425904/-testing-is-healthy-timeplay-campaign-evaluation-of-sexual-health-promotion-gamification-intervention-targeting-young-adults
#3
Qinya Zhang, Kim J Huhn, Andy Tan, Rachel E Douglas, Helen Guiyun Li, Michelle Murti, Victoria Lee
OBJECTIVES: The objectives of the study were to 1) describe the implementation of the "Testing is Healthy" campaign in four locations in British Columbia (BC) and 2) report process evaluation indicators for the campaign. PARTICIPANTS: Young adults ages 20-29 years, the age group with the highest reported rates of chlamydia and gonorrhea in BC. SETTINGS: Movie theatres located in Langley, Burnaby, Coquitlam and Surrey, which are communities served by the Fraser Health Authority (FHA) in BC...
April 20, 2017: Canadian Journal of Public Health. Revue Canadienne de Santé Publique
https://www.readbyqxmd.com/read/28425903/improving-linkage-to-hiv-care-at-low-threshold-sti-hiv-testing-sites-an-evaluation-of-the-immediate-staging-pilot-project-in-vancouver-british-columbia
#4
Bobbi Brownrigg, Darlene Taylor, Felicia Phan, Irvine Sandstra, Rochelle Stimpson, Rolando Barrios, Richard Lester, Gina Ogilvie
OBJECTIVES: The objective of the Immediate Staging Pilot Project (ISPP) was to improve linkage to human immunodeficiency virus (HIV) care by increasing the number of referrals made to HIV care, and to decrease the time between diagnosis and linkage to care for newly diagnosed HIV clients. This pilot had the potential to decrease HIV transmission at a population level by engaging clients in treatment earlier. SETTING: The Bute Street Clinic and Health Initiative for Men Clinic on Davie in Vancouver, British Columbia are low-threshold public health facilities providing HIV/STI testing primarily to men who have sex with men (MSM)...
April 20, 2017: Canadian Journal of Public Health. Revue Canadienne de Santé Publique
https://www.readbyqxmd.com/read/28424206/extending-the-fossil-record-of-polytrichaceae-early-cretaceous-meantoinea-alophosioides-gen-et-sp-nov-permineralized-gametophytes-with-gemma-cups-from-vancouver-island
#5
Alexander C Bippus, Ruth A Stockey, Gar W Rothwell, Alexandru M F Tomescu
PREMISE OF THE STUDY: Diverse in modern ecosystems, mosses are dramatically underrepresented in the fossil record. Furthermore, most pre-Cenozoic mosses are known only from compression fossils, lacking detailed anatomical information. When preserved, anatomy vastly improves resolution in the systematic placement of fossils. Lower Cretaceous deposits at Apple Bay (Vancouver Island, British Columbia, Canada) contain a diverse anatomically preserved flora that includes numerous bryophytes, many of which have yet to be characterized...
April 19, 2017: American Journal of Botany
https://www.readbyqxmd.com/read/28421914/seeing-the-forest-but-not-the-trees-heterogeneity-in-community-size-effects-in-canadian-ice-hockey-players
#6
N Wattie, J Schorer, J Baker
The community size effect (or birthplace effect) suggests that high-performance athletes are less likely to emerge from regions with population sizes that are very small or very large. However, previous research on elite Canadian ice hockey players has not considered the influence of intra-national regional variation of population distributions with respect to community size effects. Therefore, the purpose of the current study was to test the heterogeneity of the community size effect between Canadian National Hockey League draftees (2000-2014: n = 1505), from 7 provincial regions within Canada (i...
April 19, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28420368/outcomes-following-percutaneous-coronary-revascularization-among-south-asian-and-chinese-canadians
#7
Martha H Mackay, Robinder Singh, Robert H Boone, Julie E Park, Karin H Humphries
BACKGROUND: Previous data suggest significant ethnic differences in outcomes following percutaneous coronary revascularization (PCI), though previous studies have focused on subgroups of PCI patients or used administrative data only. We sought to compare outcomes in a population-based cohort of men and women of South Asian (SA), Chinese and "Other" ethnicity. METHODS: Using a population-based registry, we identified 41,792 patients who underwent first revascularization via PCI in British Columbia, Canada, between 2001 and 2010...
April 19, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28411868/high-resolution-stream-water-quality-assessment-in-the-vancouver-british-columbia-region-a-citizen-science-study
#8
Scott M Shupe
Changing land cover and climate regimes modify water quantity and quality in natural stream systems. In regions undergoing rapid change, it is difficult to effectively monitor and quantify these impacts at local to regional scales. In Vancouver, British Columbia, one of the most rapidly urbanizing areas in Canada, 750 measurements were taken from a total of 81 unique sampling sites representing 49 streams located in urban, forest, and agricultural-dominant watersheds at a frequency of up to 12 times per year between 2013 and 2016...
April 12, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28410587/overview-of-cancer-incidence-and-mortality-among-people-living-with-hiv-aids-in-british-columbia-canada-implications-for-haart-use-and-nadm-development
#9
Connie G Chiu, Danielle Smith, Kate A Salters, Wendy Zhang, Steve Kanters, David Milan, Julio S G Montaner, Andy Coldman, Robert S Hogg, Sam M Wiseman
BACKGROUND: The objective of this study is to evaluate the incidence of non-AIDS defining malignancies (NADMs) among people living with HIV/AIDS (PLWHA) in British Columbia, focusing on clinical correlates, highly active antiretroviral therapy (HAART) use, and survival, in order to elucidate mechanisms for NADM development. METHODS: A retrospective population based analysis was carried out for individuals with HIV/AIDS that began their treatment between 1996 and 2008...
April 14, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28409696/collaborative-occupational-therapy-teachers-impressions-of-the-partnering-for-change-p4c-model
#10
A L Wilson, S R Harris
AIMS: Occupational therapists (OTs) often face barriers when trying to collaborate with teachers in school-based settings. Partnering for change (P4C), a collaborative practice model designed to support children with developmental coordination disorder, could potentially support all students with special needs. Therefore, the aim of this study was to explore how teachers experience OT services delivered using the P4C model to support children with a variety of special needs. METHODS: P4C was implemented at one elementary school in Courtenay, British Columbia...
April 14, 2017: Physical & Occupational Therapy in Pediatrics
https://www.readbyqxmd.com/read/28408111/management-of-pet-diagnosed-thyroid-incidentalomas-in-british-columbia-canada-critical-importance-of-the-pet-report
#11
Jordan Wong, Kaidi Liu, Celia Siu, Steven Jones, Marlise Sovka, Don Wilson, Sam M Wiseman
BACKGROUND: PET diagnosed thyroid incidentalomas (TI) should undergo prompt evaluation due to a high risk of underlying malignancy. Our study reviewed physician management of PET diagnosed TIs in British Columbia (BC), Canada. METHODS: All PET reports from BC between 2011 and 2014 were reviewed. Clinical and demographic data was obtained for TI patients through chart review and mail out surveys to physicians. Statistical analysis was performed to identify factors associated with further TI investigation...
March 24, 2017: American Journal of Surgery
https://www.readbyqxmd.com/read/28404135/incidence-risk-factors-and-prevention-of-hepatitis-c-reinfection-a-population-based-cohort-study
#12
Nazrul Islam, Mel Krajden, Jean Shoveller, Paul Gustafson, Mark Gilbert, Jane A Buxton, Jason Wong, Mark W Tyndall, Naveed Zafar Janjua
BACKGROUND: People remain at risk of reinfection with hepatitis C virus (HCV), even after clearance of the primary infection. We identified factors associated with HCV reinfection risk in a large population-based cohort study in British Columbia, Canada, and examined the association of opioid substitution therapy and mental health counselling with reinfection. METHODS: We obtained data from the British Columbia Hepatitis Testers Cohort, which includes all individuals tested for HCV or HIV at the British Columbia Centre for Disease Control Public Health Laboratory during 1990-2013 (when data were available)...
March 2017: Lancet. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28401135/the-effects-of-catastrophic-drug-plan-deductibles-on-older-women-s-use-of-cardiovascular-medicines-a-retrospective-cohort-study
#13
Steven G Morgan, Emilie J Gladstone, Deirdre Weymann, Nadia Khan
BACKGROUND: In recent years, some provinces have implemented income-based catastrophic drug coverage in an effort to provide universal drug coverage while limiting government liability for the escalating costs of medicines needed for an aging population. We sought to examine the effects of income-based deductibles under British Columbia's Fair PharmaCare system on older patients' use of cardiovascular medicines in 2013, 10 years after the province's policy change. METHODS: Using linked administrative databases, we studied rates of hypertension and cholesterol medication used by 2 cohorts of older, married women who had different levels of public drug subsidy based solely on their spouses' ages...
January 2017: CMAJ Open
https://www.readbyqxmd.com/read/28401119/long-term-sedative-use-among-community-dwelling-adults-a-population-based-analysis
#14
Deirdre Weymann, Emilie J Gladstone, Kate Smolina, Steven G Morgan
BACKGROUND: Chronic use of benzodiazepines and benzodiazepine-like sedatives (z-drugs) presents substantial risks to people of all ages. We sought to assess trends in long-term sedative use among community-dwelling adults in British Columbia. METHODS: Using population-based linked administrative databases, we examined longitudinal trends in age-standardized rates of sedative use among different age groups of community-dwelling adults (age ≥ 18 yr), from 2004 to 2013...
January 2017: CMAJ Open
https://www.readbyqxmd.com/read/28399819/comparison-of-atazanavir-ritonavir-and-darunavir-ritonavir-based-antiretroviral-therapy-for-antiretroviral-na%C3%A3-ve-patients
#15
Tony Antoniou, Leah Szadkowski, Sharon Walmsley, Curtis Cooper, Ann N Burchell, Ahmed M Bayoumi, Julio S G Montaner, Mona Loutfy, Marina B Klein, Nima Machouf, Christos Tsoukas, Alexander Wong, Robert S Hogg, Janet Raboud
BACKGROUND: Atazanavir/ritonavir and darunavir/ritonavir are common protease inhibitor-based regimens for treating patients with HIV. Studies comparing these drugs in clinical practice are lacking. METHODS: We conducted a retrospective cohort study of antiretroviral naïve participants in the Canadian Observational Cohort (CANOC) collaboration initiating atazanavir/ritonavir- or darunavir/ritonavir-based treatment. We used separate Fine and Gray competing risk regression models to compare times to regimen failure (composite of virologic failure or discontinuation for any reason)...
April 11, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28397269/asian-and-non-asian-disparities-in-outcomes-of-non-nasopharyngeal-head-and-neck-cancer
#16
Jason D Kim, Jennifer T Chang, Ali Moghaddamjou, Emily A Kornelsen, Jenny Y Ruan, Robert A Olson, Winson Y Cheung
OBJECTIVES/HYPOTHESIS: To evaluate disparities in overall survival (OS) between Asian and non-Asian patients diagnosed with non-nasopharyngeal head and neck cancer (HNC). STUDY DESIGN: This was a population-based, retrospective study of patients diagnosed with non-nasopharyngeal HNC of squamous cell carcinoma histology between 2001 and 2010 in British Columbia, Canada. METHODS: Using Kaplan-Meier methods and Cox regression models, we examined the relationship between race and OS...
April 11, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28393387/dental-students-reflections-about-long-term-care-experiences-through-an-existing-model-of-oral-health
#17
Mario Brondani, Komkham Pattanaporn
OBJECTIVE: The aim of this study was to explore students' reflective thinking about long-term care experiences from the perspective of a model of oral health. MATERIALS AND METHODS: A total of 186 reflections from 193 second-year undergraduate dental students enrolled between 2011/12 and 2014/15 at the University of British Columbia were explored qualitatively. Reflections had a word limit of 300, and students were asked to relate an existing model of oral health to their long-term care experiences...
April 10, 2017: Gerodontology
https://www.readbyqxmd.com/read/28392140/estimated-protective-effectiveness-of-intramuscular-immune-serum-globulin-post-exposure-prophylaxis-during-a-measles-outbreak-in-british-columbia-canada-2014
#18
Mark Bigham, Michelle Murti, Christina Fung, Felicity Hemming, Susan Loadman, Robert Stam, Paul Van Buynder, Marcus Lem
INTRODUCTION: Intramuscular Immune Serum Globulin (IM ISG) is recommended as post-measles exposure prophylaxis (PEP) when administered within 6days of initial exposure, with variable effectiveness in preventing measles disease. Effectiveness of IM ISG PEP in preventing clinical measles was assessed during a 2014 measles outbreak among a religious-affiliated community in British Columbia, Canada. MATERIAL AND METHODS: Fifty-five self-reporting measles susceptible contacts were offered exclusively IM ISG PEP within an eligibility period best surmised to be within 6days of initial measles case exposure...
April 6, 2017: Vaccine
https://www.readbyqxmd.com/read/28389739/does-socioeconomic-status-affect-lengthy-wait-time-in-canada-evidence-from-canadian-community-health-surveys
#19
Mohammad Hajizadeh
Reasonable access to health services without financial or other barriers is a primary objective of the Canadian health system. Notwithstanding such concern about accessibility of services, long waiting times for health services have been a prominent health policy issue in recent years. Using pooled data from four nationally representative Canadian Community Health Surveys (CCHSs, 2000/01, 2003, 2005 and 2010; n = 266,962) we examine socioeconomic inequality in lengthy wait time (LWT) to health care among adults (aged 18-65) in Canada...
April 7, 2017: European Journal of Health Economics: HEPAC: Health Economics in Prevention and Care
https://www.readbyqxmd.com/read/28388352/health-related-quality-of-life-and-receipt-of-women-centred-hiv-care-among-women-living-with-hiv-in-canada
#20
Allison Carter, Mona Loutfy, Alexandra de Pokomandy, Guillaume Colley, Wendy Zhang, Paul Sereda, Nadia O'Brien, Karène Proulx-Boucher, Valerie Nicholson, Kerrigan Beaver, Angela Kaida, On Behalf Of The Chiwos Research Team
We measured health-related quality-of-life (HRQOL) using the SF-12 among women living with HIV (WLWH) in Canada between August 2013 and May 2015. We investigated differences by perceived receipt of women-centered HIV care (WCHC), assessed using an evidence-based definition with a 5-point Likert item: "Overall, I think that the care I have received from my HIV clinic in the last year has been women-centred" (dichotomized into Agree vs. Disagree/Neutral). Of 1308 participants, 26.3% were from British Columbia, 48...
April 7, 2017: Women & Health
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