keyword
MENU ▼
Read by QxMD icon Read
search

Columbia

keyword
https://www.readbyqxmd.com/read/29341857/development-of-visibility-forecasting-modelling-framework-for-the-lower-fraser-valley-of-british-columbia-using-canada-s-regional-air-quality-deterministic-prediction-system
#1
Rita So, Andrew Teakles, Jonathan Baik, Roxanne Vingarzan, Keith Jones
Visibility degradation, one of the most noticeable indicators of poor air quality, can occur despite relatively low levels of particulate matter when the risk to human health is low. The availability of timely and reliable visibility forecasts can provide a more comprehensive understanding of the anticipated air quality conditions to better inform local jurisdictions and the public. This paper describes the development of a visibility forecasting modelling framework, which leverages the existing air quality and meteorological forecasts from Canada's operational Regional Air Quality Deterministic Prediction System (RAQDPS) for the Lower Fraser Valley of British Columbia...
January 17, 2018: Journal of the Air & Waste Management Association
https://www.readbyqxmd.com/read/29341442/motivating-influences-and-ability-based-outcomes-of-dental-hygiene-baccalaureate-education-in-canada
#2
Z Kanji, D M Laronde
BACKGROUND: There is a scarcity of studies on Canadian baccalaureate dental hygienists. As discussions about baccalaureate education for dental hygiene continue on a national level, examining outcomes of earning a dental hygiene degree is paramount. OBJECTIVE: To investigate the motivating reasons and ability-based outcomes of earning a Bachelor of Dental Science in Dental Hygiene (BDSc) degree from the University of British Columbia (UBC), Canada. METHODS: UBC dental hygiene entry-to-practice (ETP) and degree-completion (DC) graduates (n = 116; 32%) from 1994 to 2016 participated in an online mixed-methods survey...
January 17, 2018: International Journal of Dental Hygiene
https://www.readbyqxmd.com/read/29340914/structural-effects-on-hiv-risk-among-youth-a-multi-level-analysis
#3
Robin Lin Miller, Trevor Strzyzykowski, Kyung-Sook Lee, Danielle Chiaramonte, Ignacio Acevedo-Polakovich, Hannah Spring, Olga Santiago-Rivera, Cherrie B Boyer, Jonathan M Ellen
We proposed a multilevel model of structural influences on HIV-risky sexual partnerships in a diverse sample of 1793 youth residing in 23 states and the District of Columbia. We examined the influence of concentrated disadvantage, HIV stigma, and sexual and gender minority stigma on engagement in HIV risky sexual partnerships and whether youth's participation in opportunity structures, anticipation of HIV stigma, and perceptions of their community as youth-supportive settings mediated structural effects. After controlling for age, HIV status, and race, we found structural HIV stigma had deleterious indirect effects on youth's participation in HIV-risky sexual partnerships...
January 16, 2018: AIDS and Behavior
https://www.readbyqxmd.com/read/29340236/dna-barcode-based-survey-of-trichoptera-in-the-crooked-river-reveals-three-new-species-records-for-british-columbia
#4
Daniel J Erasmus, Emily A Yurkowski, Dezene P W Huber
Anthropogenic pressures on aquatic systems have placed a renewed focus on biodiversity of aquatic macroinvertebrates. By combining classical taxonomy and DNA barcoding we identified 39 species of caddisflies from the Crooked River, a unique and sensitive system in the southernmost arctic watershed in British Columbia. Our records include three species never before recorded in British Columbia: Lepidostoma togatum (Lepidostomatidae), Ceraclea annulicornis (Leptoceridae), and possibly Cheumatopsyche harwoodi (Hydropsychidae)...
2018: PeerJ
https://www.readbyqxmd.com/read/29337773/prognostic-factors-for-locoregional-recurrence-in-neuroendocrine-tumors-of-the-rectum
#5
Erica S Tsang, Yarrow J McConnell, David F Schaeffer, Yaling Yin, Caroline H Speers, Hagen F Kennecke
BACKGROUND: Optimal management of rectal neuroendocrine tumors is not yet well defined. Various pathologic factors, particularly tumor size, have been proposed as prognostic markers. OBJECTIVE: We characterized sequential patients diagnosed with rectal neuroendocrine tumors in a population-based setting to determine whether tumor size and other pathologic markers could be useful in guiding locoregional management. DESIGN: This study is a retrospective analysis of data from the British Columbia provincial cancer registry...
February 2018: Diseases of the Colon and Rectum
https://www.readbyqxmd.com/read/29335445/trophic-ecology-of-glass-sponge-reefs-in-the-strait-of-georgia-british-columbia
#6
Amanda S Kahn, Jackson W F Chu, Sally P Leys
Sponges link the microbial loop with benthic communities by feeding on bacteria. Glass sponge reefs on the continental shelf of western Canada have extremely high grazing rates, consuming seven times more particulate carbon than can be supplied by vertical flux alone. Unlike many sponges, the reef building species Aphrocallistes vastus has no microbial symbionts and removes little dissolved organic carbon. To determine how reef sponges therefore get enough food to sustain such substantial grazing we measured stable carbon and nitrogen isotope signatures of water, sediment and sponge tissues...
January 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29331972/cohort-profile-the-comparative-outcomes-and-service-utilization-trends-coast-study-among-people-living-with-and-without-hiv-in-british-columbia-canada
#7
Oghenowede Eyawo, Mark W Hull, Kate Salters, Hasina Samji, Angela Cescon, Paul Sereda, Viviane D Lima, Bohdan Nosyk, David G T Whitehurst, Scott A Lear, Julio S G Montaner, Robert S Hogg
PURPOSE: The Comparative Outcomes And Service Utilization Trends (COAST) Study in British Columbia (BC), Canada, was designed to evaluate the determinants of health outcomes and health care services use among people living with HIV (PLHIV) as they age in the period following the introduction of combination antiretroviral therapy (cART). The study also assesses how age-associated comorbidities and health care use among PLHIV may differ from those observed in the general population. PARTICIPANTS: COAST was established through a data linkage between two provincial data sources: The BC Centre for Excellence in HIV/AIDS Drug Treatment Program, which centrally manages cART dispensation across BC and contains prospectively collected data on demographic, immunological, virological, cART use and other clinical information for all known PLHIV in BC; and Population Data BC, a provincial data repository that holds individual event-level, longitudinal data for all 4...
January 13, 2018: BMJ Open
https://www.readbyqxmd.com/read/29331283/the-influx-of-marine-debris-from-the-great-japan-tsunami-of-2011-to-north-american-shorelines
#8
Cathryn Clarke Murray, Nikolai Maximenko, Sherry Lippiatt
Marine debris is one of the leading threats to the ocean and the Great East Japan Earthquake and tsunami on March 11, 2011 washed away an estimated 5million tons of debris in a single, tragic event. Here we used shoreline surveys, disaster debris reports and ocean drift models to investigate the temporal and spatial trends in the arrival of tsunami marine debris. The increase in debris influx to surveyed North American and Hawaiian shorelines was substantial and significant, representing a 10 time increase over the baseline in northern Washington State where a long term dataset was available...
January 10, 2018: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/29330990/association-of-quality-of-sleep-with-cognitive-decline-among-the-patients-of-chronic-kidney-disease-undergoing-haemodialysis
#9
Usama Bin Zubair, Batool Butt
BACKGROUND: This study was conducted to determine the association between the subjective quality of sleep and cognitive decline among the patients of chronic kidney disease (CKD) undergoing haemodialysis. METHODS: In this cross-sectional study 106 patients of chronic kidney disease (CKD) undergoing haemodialysis at a tertiary care hospital in Rawalpindi, Pakistan were included in the final analysis. Cognitive decline was measured by British Columbia Cognitive Complaints Inventory (BC-CCI)...
October 2017: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/29330820/effect-of-ion-exchange-on-the-rate-of-aerobic-microbial-oxidation-of-ammonium-in-hyporheic-zone-sediments
#10
Ailan Yan, Chongxuan Liu, Yuanyuan Liu, Fen Xu
Microbially mediated ammonium oxidation is a major process affecting nitrogen transformation and cycling in natural environments. This study investigated whether ion exchange process can affect microbially mediated aerobic oxidation of ammonium in a hyporheic zone (HZ) sediments from the Columbia River at US Department of Energy's Hanford site, Washington State. Experiments were conducted using synthetic groundwater and river water to investigate their effect on ammonium oxidation. Results indicated that ammonium sorption through ion exchange reactions decreased the rate of ammonium oxidation, apparently resulting from the influence of the ion exchange on dissolved ammonium concentration, thus decreasing the bioavailability of ammonium for microbial oxidation...
January 12, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29328654/country-level-life-cycle-assessment-of-greenhouse-gas-emissions-from-liquefied-natural-gas-trade-for-electricity-generation
#11
Adebola S Kasumu, Vivian Li, James W Coleman, Jeanne Liendo, Sarah M Jordaan
In the determination of the net impact of Liquefied Natural Gas (LNG) on greenhouse gas emissions, Life Cycle Assessments (LCA) of electricity generation have yet to combine the effects of transport distances between exporting and importing countries, country-level infrastructure in importing countries, and the fuel sources displaced in importing countries. To address this, we conduct a LCA of electricity generated from LNG export from British Columbia, Canada with a three-step approach: (1) a review of viable electricity generation markets for LNG, (2) the development of results for greenhouse gas emissions that account for transport to importing nations as well as the infrastructure required for power generation and delivery, and (3) emissions displacement scenarios to test assumptions about what electricity is being displaced in the importing nation...
January 12, 2018: Environmental Science & Technology
https://www.readbyqxmd.com/read/29326307/mycophenolate-mofetil-in-combination-with-steroids-for-treatment-of-c3-glomerulopathy-a-case-series
#12
Rupali S Avasare, Pietro A Canetta, Andrew S Bomback, Maddalena Marasa, Yasar Caliskan, Yasemin Ozluk, Yifu Li, Ali G Gharavi, Gerald B Appel
BACKGROUND AND OBJECTIVES: C3 glomerulopathy is a form of complement-mediated GN. Immunosuppressive therapy may be beneficial in the treatment of C3 glomerulopathy. Mycophenolate mofetil is an attractive treatment option given its role in the treatment of other complement-mediated diseases and the results of the Spanish Group for the Study of Glomerular Diseases C3 Study. Here, we study the outcomes of patients with C3 glomerulopathy treated with steroids and mycophenolate mofetil. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: We conducted a retrospective chart review of patients in the C3 glomerulopathy registry at Columbia University and identified patients treated with mycophenolate mofetil for at least 3 months and follow-up for at least 1 year...
January 11, 2018: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/29324725/west-nile-virus-and-other-nationally-notifiable-arboviral-diseases-united-states-2016
#13
Alexis Burakoff, Jennifer Lehman, Marc Fischer, J Erin Staples, Nicole P Lindsey
Arthropod-borne viruses (arboviruses) are transmitted to humans primarily through the bites of infected mosquitoes and ticks. West Nile virus (WNV) is the leading cause of domestically acquired arboviral disease in the continental United States (1,2). Other arboviruses, including La Crosse, Powassan, Jamestown Canyon, St. Louis encephalitis, and eastern equine encephalitis viruses, cause sporadic cases of disease and occasional outbreaks. This report summarizes surveillance data reported to CDC for 2016 for nationally notifiable arboviruses...
January 12, 2018: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/29321874/conservation-planning-for-freshwater-marine-carryover-effects-on-chinook-salmon-survival
#14
Jennifer L Gosselin, Richard W Zabel, James J Anderson, James R Faulkner, António M Baptista, Benjamin P Sandford
Experiences of migratory species in one habitat may affect their survival in the next habitat, in what is known as carryover effects. These effects are especially relevant for understanding how freshwater experience affects survival in anadromous fishes. Here, we study the carryover effects of juvenile salmon passage through a hydropower system (Snake and Columbia rivers, northwestern United States). To reduce the direct effect of hydrosystem passage on juveniles, some fishes are transported through the hydrosystem in barges, while the others are allowed to migrate in-river...
January 2018: Ecology and Evolution
https://www.readbyqxmd.com/read/29321471/author-correction-signatures-of-the-topological-s-superconducting-order-parameter-in-the-type-ii-weyl-semimetal-t-d-mote2
#15
Z Guguchia, F von Rohr, Z Shermadini, A T Lee, S Banerjee, A R Wieteska, C A Marianetti, B A Frandsen, H Luetkens, Z Gong, S C Cheung, C Baines, A Shengelaya, G Taniashvili, A N Pasupathy, E Morenzoni, S J L Billinge, A Amato, R J Cava, R Khasanov, Y J Uemura
The original version of this article omitted the following from the Acknowledgements: "CAM and AL were supported by the NSF MRSEC program through Columbia in the Center for Precision Assembly of Superstratic and Superatomic Solids (DMR-1420634). Additionally, this research used resources of the National Energy Research Scientific Computing Center, a DOE Office of Science User Facility supported by the Office of Science of the U.S. Department of Energy under 'Contract No. DE-AC02-05CH11231'." This has now been corrected in both the PDF and HTML versions of the article...
January 10, 2018: Nature Communications
https://www.readbyqxmd.com/read/29320518/increased-mitochondrial-dna-diversity-in-ancient-columbia-river-basin-chinook-salmon-oncorhynchus-tshawytscha
#16
Bobbi M Johnson, Brian M Kemp, Gary H Thorgaard
The Columbia River and its tributaries provide essential spawning and rearing habitat for many salmonid species, including Chinook salmon (Oncorhynchus tshawytscha). Chinook salmon were historically abundant throughout the basin and Native Americans in the region relied heavily on these fish for thousands of years. Following the arrival of Europeans in the 1800s, salmon in the basin experienced broad declines linked to overfishing, water diversion projects, habitat destruction, connectivity reduction, introgression with hatchery-origin fish, and hydropower development...
2018: PloS One
https://www.readbyqxmd.com/read/29319475/drug-overdose-deaths-in-the-united-states-1999-2016
#17
Holly Hedegaard, Margaret Warner, Arialdi M Miniño
Data from the National Vital Statistics System, Mortality: -In 2016, there were more than 63,600 drug overdose deaths in the United States. -The age-adjusted rate of drug overdose deaths in 2016 (19.8 per 100,000) was 21% higher than the rate in 2015 (16.3). -Among persons aged 15 and over, adults aged 25-34, 35-44, and 45-54 had the highest rates of drug overdose deaths in 2016 at around 35 per 100,000. -West Virginia (52.0 per 100,000), Ohio (39.1), New Hampshire (39.0), the District of Columbia (38.8), and Pennsylvania (37...
December 2017: NCHS Data Brief
https://www.readbyqxmd.com/read/29319472/state-variations-in-infant-mortality-by-race-and-hispanic-origin-of-mother-2013-2015
#18
T J Matthews, Danielle M Ely, Anne K Driscoll
Data from the National Vital Statistics System: -In 2013-2015, the infant mortality rate by state ranged from 4.28 per 1,000 live births in Massachusetts to 9.08 in Mississippi. -Among the 50 states and the District of Columbia (D.C.), the mortality rate for infants of non-Hispanic white women ranged from 2.52 in D.C. to 7.04 in Arkansas. -For infants of non-Hispanic black women, the mortality rate ranged from 8.27 in Massachusetts to 14.28 in Wisconsin. -The mortality rate for infants of Hispanic women ranged from 3...
January 2018: NCHS Data Brief
https://www.readbyqxmd.com/read/29315154/characteristics-and-comorbidities-of-inpatients-without-celiac-disease-on-a-gluten-free-diet
#19
John W Blackett, Meghana Shamsunder, Norelle R Reilly, Peter H R Green, Benjamin Lebwohl
OBJECTIVES: Despite the increasing popularity of gluten-free diet (GFD), the demographic characteristics and medical features of patients without celiac disease on this diet have not been extensively investigated.We aimed to characterize the medical conditions and demographic backgrounds of hospitalized patients without celiac disease who adhere to a GFD, to further understand their reasons for gluten avoidance. MATERIALS AND METHODS: We performed an observational cohort study on all inpatients at Columbia University Medical Center on a GFD in 2011-2016, excluding those with celiac disease, compared with age-matched and sex-matched inpatients on a regular diet...
January 8, 2018: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/29313949/cancer-statistics-2018
#20
Rebecca L Siegel, Kimberly D Miller, Ahmedin Jemal
Each year, the American Cancer Society estimates the numbers of new cancer cases and deaths that will occur in the United States and compiles the most recent data on cancer incidence, mortality, and survival. Incidence data, available through 2014, were collected by the Surveillance, Epidemiology, and End Results Program; the National Program of Cancer Registries; and the North American Association of Central Cancer Registries. Mortality data, available through 2015, were collected by the National Center for Health Statistics...
January 4, 2018: CA: a Cancer Journal for Clinicians
keyword
keyword
75506
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"