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https://www.readbyqxmd.com/read/29155712/minimum-burning-pressures-of-water-based-emulsion-explosives
#1
Richard Turcotte, Christopher M Badeen, Sandra Goldthorp
This manuscript describes a protocol to measure the minimum pressure required for sustained burning of water-based emulsion explosives. Pumping water-based emulsion explosives for blasting applications can be very hazardous, as demonstrated by a number of pump accidents around the globe in the last decades, including some that resulted in fatalities. In Canada, the recognition of this hazard has led to the development of pumping guidelines that were endorsed by both the explosives industry and the Explosive Regulatory Division of the Canadian government...
October 31, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29154932/correlation-of-virtual-reality-simulation-and-dry-lab-robotic-technical-skills
#2
Laura K Newcomb, Megan S Bradley, Tracy Truong, Michelle Tang, Bryan Comstock, Yi-Ju Li, Anthony G Visco, Nazema Y Siddiqui
STUDY OBJECTIVE: To examine whether a set of virtual reality (VR) surgical simulation drills have correlative validity when compared to the validated Robotic Objective Structured Assessment of Technical Skills (R-OSATS) dry lab drills. DESIGN: A prospective methods comparison study (Canadian Task Force II-2). SETTING: A teaching hospital. PARTICIPANTS: Thirty current residents, fellows, and faculty from the departments of OB/GYN, Urology, and General Surgery...
November 14, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/29154750/global-perspectives-on-ensuring-the-safety-of%C3%A2-pharmaceutical-products-in-the-distribution-process%C3%A2
#3
Sohyun Jeong, Eunhee Ji
OBJECTIVE: The distribution of counterfeit or falsified drugs is increasing worldwide. This can contribute to the high burden of disease and cost to society and is of global concern with the worldwide circulation of pharmaceuticals. The preparation and implementation of good distribution practice should be one of the most important aspects of ensuring safe drug circulation and administration. This research aimed to compare and analyze good distribution practice guidelines from advanced countries and international organizations, and to evaluate the status of the current good distribution practice guidelines in the world...
November 20, 2017: International Journal of Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/29154686/a-retrospective-summary-of-raptor-mortality-in-ontario-canada-1991-2014-including-the-effects-of-west-nile-virus
#4
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/29154301/a-closer-look-at-subjective-caloric-sensations-is-there-more-to-vertigo-than-spinning
#5
Tamara Mijovic, Andrew Remillard, Erica Helena Zaia, Yvette Marie Reid, Jolene Kim Harrington, Brian David Westerberg, Jane Lea
BACKGROUND: There is a prevailing opinion that spinning sensations signify a peripheral vestibular pathology while non-spinning sensations are not of vestibular origin. OBJECTIVES: 1) Characterize the subjective sensations reported by patients during caloric testing. 2) Assess if the sensation was correlated with the peak slow phase velocity (SPV). METHODS: Retrospective chart review at a Canadian adult tertiary-quaternary care balance centre for patients undergoing diagnostic caloric testing between December 2014 and September 2015...
November 14, 2017: Journal of Vestibular Research: Equilibrium & Orientation
https://www.readbyqxmd.com/read/29154222/exploring-innovative-possibilities-of-recovering-the-value-of-dark-cutting-beef-in-the-canadian-grading-system
#6
N Prieto, Ó López-Campos, S P Suman, B Uttaro, A Rodas-González, J L Aalhus
No abstract text is available yet for this article.
November 10, 2017: Meat Science
https://www.readbyqxmd.com/read/29153927/1hz-rtms-of-the-right-orbitofrontal-cortex-for-major-depression-safety-tolerability-and-clinical-outcomes
#7
Kfir Feffer, Peter Fettes, Peter Giacobbe, Zafiris J Daskalakis, Daniel M Blumberger, Jonathan Downar
Conventional rTMS in major depressive disorder (MDD) targets the dorsolateral prefrontal cortex (DLPFC). However, many patients do not respond to DLPFC-rTMS. Recent evidence suggests that the right lateral orbitofrontal cortex (OFC) plays a key role in 'non-reward' functions and shows hyperconnectivity in MDD. OFC-rTMS has been used successfully in obsessive-compulsive disorder, and achieved remission in an MDD case nonresponsive to DLPFC- and DMPFC-rTMS. Here, we assess the safety and tolerability of right OFC-rTMS, and examine the effectiveness of inhibitory right OFC-rTMS in MDD, particularly among patients with previous nonresponse to DMPFC-rTMS...
November 16, 2017: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29153857/predicting-the-atopic-march-results-from-the-canadian-healthy-infant-longitudinal-development-study
#8
Maxwell M Tran, Diana L Lefebvre, Christoffer Dharma, David Dai, Wendy Y W Lou, Padmaja Subbarao, Allan B Becker, Piush J Mandhane, Stuart E Turvey, Malcolm R Sears
BACKGROUND: The atopic march describes the progression from atopic dermatitis during infancy to asthma and allergic rhinitis in later childhood. In a Canadian birth cohort we investigated whether concomitant allergic sensitization enhances subsequent development of these allergic diseases at age 3 years. METHODS: Children completed skin prick testing at age 1 year. Children were considered sensitized if they produced a wheal 2 mm or larger than that elicited by the negative control to any of 10 inhalant or food allergens...
November 1, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29153439/number-of-pulses-or-number-of-sessions-an-open-label-study-of-trajectories-of-improvement-for-once-vs-twice-daily-dorsomedial-prefrontal-rtms-in-major-depression
#9
Laura Schulze, Kfir Feffer, Christopher Lozano, Peter Giacobbe, Zafiris J Daskalakis, Daniel M Blumberger, Jonathan Downar
BACKGROUND: Repetitive transcranial magnetic stimulation (rTMS) shows efficacy in the treatment of major depressive episodes (MDEs), but can require ≥4-6 weeks for maximal effect. Recent studies suggest that multiple daily sessions of rTMS can accelerate response without reducing therapeutic efficacy. However, it is unresolved whether therapeutic effects track cumulative number of pulses, or cumulative number of sessions. OBJECTIVE: This open-label study reviewed clinical outcomes over a 20-30 session course of high-frequency bilateral dorsomedial prefrontal cortex (DMPFC)-rTMS among patients receiving 6000 pulses/day delivered either in twice-daily sessions 80 min apart (at 20 Hz) or single, longer, once-daily sessions (at 10 Hz)...
November 7, 2017: Brain Stimulation
https://www.readbyqxmd.com/read/29152527/novel-lrpprc-mutation-in-a-boy-with-mild-leigh-syndrome-french-canadian-type-outside-of-qu%C3%A3-bec
#10
Velda Xinying Han, Teresa S Tan, Furene S Wang, Stacey Kiat-Hong Tay
Background: Leigh syndrome, French-Canadian type is unique to patients from a genetic isolate in the Saguenay-Lac-Saint-Jean region of Québec. It has also been recently described in 10 patients with LRPPRC mutation outside of Québec. It is an autosomal recessive genetic disorder with fatal metabolic crisis and severe neurological morbidity in infancy caused by LRPPRC mutation. Methods and Results: The authors report a boy with a novel LRPPRC compound heterozygous missense mutations c...
January 2017: Child neurology open
https://www.readbyqxmd.com/read/29151389/bevacizumab-in-recurrent-high-grade-gliomas-a-canadian-retrospective-study
#11
Mary Jane Lim Fat, Catherine Maurice, Manjula Maganti, Warren P Mason
BACKGROUND: Bevacizumab has been used in recurrent glioblastoma (rGBM) since 2010 in Canada. Given its cost, potential toxicities, and unclear efficacy, further studies are required to better define suitable candidates for therapy. METHODS: A single-center retrospective review of patients started on bevacizumab for rGBM from 2012 to 2015 was performed. Patient demographics, tumor characteristics, treatment regimen, and dates of clinical progression and death were collected...
November 20, 2017: Canadian Journal of Neurological Sciences. le Journal Canadien des Sciences Neurologiques
https://www.readbyqxmd.com/read/29151382/exposure-and-perceptions-of-marketing-for-caffeinated-energy-drinks-among-young-canadians
#12
David Hammond, Jessica L Reid
OBJECTIVE: To examine exposure to energy drink marketing among youth and young adults, and test perceptions of energy drink advertisements (ads) regarding target audience age and promoting energy drink use during sports. DESIGN: A between-group experiment randomly assigned respondents to view one of four energy drink ads (sport-themed or control) and assessed perceptions of the ad. Regression models examined marketing exposure and perceptions. SETTING: Online survey (2014)...
November 20, 2017: Public Health Nutrition
https://www.readbyqxmd.com/read/29151185/mercury-in-organs-of-pacific-walruses-odobenus-rosmarus-divergens-from-the-bering-sea
#13
Alexey M Trukhin, Mikhail V Simokon
The Pacific walrus (Odobenus rosmarus divergens) is still used as an important source of protein-rich food by indigenous peoples of Chukotka, Alaska, and other Arctic regions. Total mercury (THg) concentration was measured in eight internal organs of walruses. Samples were taken from 22 individuals (11 males and 11 females). Age of the animals ranged from 1 to 30 years. All the walruses were harvested by local hunters from the coastal waters off the Chukchi Peninsula (Russia) during the autumn of 2011. Total mercury concentration in the samples was determined by atomic absorption method...
November 18, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29151096/jumping-frenchmen-miryachit-and-latah-culture-specific-hyperstartle-plus-syndromes
#14
Douglas J Lanska
In the late 19th century, jumping (French Canadians in Maine, USA), miryachit (Siberia), and latah (Southeast Asia) were among a group of similar disorders described around the world, each of which manifests as an exaggerated startle response with additional late-response features that were felt by some to overlap with hysteria or tics. The later features following the exaggerated startle reaction variably include mimesis (e.g., echopraxia, echolalia) and automatic obedience. These reaction patterns tended to persist indefinitely in affected individuals...
2018: Frontiers of Neurology and Neuroscience
https://www.readbyqxmd.com/read/29150875/treatment-of-acquired-thrombotic-thrombocytopenic-purpura-in-the-u-s-remains-heterogeneous-current-and-future-points-of-clinical-equipoise
#15
Marshall A Mazepa, Jay S Raval, Mark E Brecher, Yara A Park
BACKGROUND: The purpose of this survey was to describe current practices in the U.S. for treatment of acquired Thrombotic Thrombocytopenic Purpura (TTP), compare these with prior U.S. and current Canadian practices, and identify areas of clinical equipoise. STUDY DESIGN AND METHODS: A research team member administered the survey by telephone. Questions included an estimate of the annual patient volume treated, apheresis and medical therapy practices for acquired TTP...
November 18, 2017: Journal of Clinical Apheresis
https://www.readbyqxmd.com/read/29150787/the-young-investigator-retreat-of-the-canadian-critical-care-trials-group-mentorship-and-self-discovery
#16
EDITORIAL
Ian M Ball, Lisa Burry, Peter Dodek, Jamie S Hutchison, Jeanna Parsons Leigh, Victoria McCredie, Srinivas Murthy, Bram Rochwerg, Deborah Cook
No abstract text is available yet for this article.
November 17, 2017: Canadian Journal of Anaesthesia, Journal Canadien D'anesthésie
https://www.readbyqxmd.com/read/29150778/withholding-and-withdrawing-life-sustaining-treatment-the-canadian-critical-care-society-position-paper
#17
Natalie Bandrauk, James Downar, Bojan Paunovic
No abstract text is available yet for this article.
November 17, 2017: Canadian Journal of Anaesthesia, Journal Canadien D'anesthésie
https://www.readbyqxmd.com/read/29149279/impact-of-isolating-clostridium-difficile-carriers-on-the-burden-of-isolation-precautions-a-time-series-analysis
#18
Yasi Xiao, Bianka Paquet-Bolduc, Christophe Garenc, Philippe Gervais, Sylvie Trottier, Jean-François Roussy, Jean Longtin, Vivian G Loo, Yves Longtin
Background: The isolation of asymptomatic Clostridium difficile (CD) carriers may decrease the incidence of hospital-associated C. difficile infections (CDI), but its impact on isolation precaution needs is unknown. Methods: Time series analysis to investigate the impact of isolating CD carriers on the burden of isolation precautions from 2008 to 2016 in a Canadian hospital. To account for the changes in C. difficile infection control policies, the series was divided into three intervention periods...
November 15, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29149202/intraspecific-evolutionary-relationships-among-peregrine-falcons-in-western-north-american-high-latitudes
#19
Sandra L Talbot, George K Sage, Sarah A Sonsthagen, Meg C Gravley, Ted Swem, Jeffrey C Williams, Jonathan L Longmire, Skip Ambrose, Melanie J Flamme, Stephen B Lewis, Laura Phillips, Clifford Anderson, Clayton M White
Subspecies relationships within the peregrine falcon (Falco peregrinus) have been long debated because of the polytypic nature of melanin-based plumage characteristics used in subspecies designations and potential differentiation of local subpopulations due to philopatry. In North America, understanding the evolutionary relationships among subspecies may have been further complicated by the introduction of captive bred peregrines originating from non-native stock, as part of recovery efforts associated with mid 20th century population declines resulting from organochloride pollution...
2017: PloS One
https://www.readbyqxmd.com/read/29148883/gammaherpesvirus-type-1-ruminant-rhadinovirus-in-muskox-ovibos-moschatus-in-greenland
#20
Kjell Handeland, Lajos Zoltan Muzs, Christine Cuyler, Marianne Heum, Faisal Suhel, Carlos G das Neves
The world's native distribution of muskox (Ovibos moschatus) is restricted to Canada and Greenland, and a muskox-specific gammaherpesvirus has been described from Canadian populations. We analyzed spleen samples from the Kangerlussuaq muskox population in Greenland and identified muskox gammaherpes by PCR and sequencing.
November 17, 2017: Journal of Wildlife Diseases
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