• Canada
• Research dataclose
• 2013-2022close
• Open Access close
• Dataset close
• MSpace at the University of Manitoba close

Dataset includes power and thrust coefficients of a 19.8 cm diameter horizontal axis hydrokinetic model turbine measured experimentally in a water tunnel. Tests are done at 0.7, 0.9, and 1.1 m/s water speeds for three turbine configurations: turbine blade alone and then with two shrouds. Output power of the turbine and its thrust force are measured experimentally. Results are corrected using a theoretical model that accounts for free surface proximity and blockage effects of the water tunnel. Please see the description file on details of the experiment.

The data was collected during laboratory experiments in a 2-D porous media, in a 0.9 m x 0.3 m x 0.12 m box. Sand hydraulic conductivity was 2.3E-3 m/s. A salt core was placed along the bottom third of the tank. A constant head boundary was applied at the top left and top right corners of the tank. Gradients of 2%, 5% and 10% were used. Salt concentrations were collected using resistance measurements which were calibrated against standards.

Abstract BACKGROUND: Comprehensive, population-based data on ERCP use over the last 30 years in North America are lacking. OBJECTIVE: To establish crude and age-adjusted population-based rates of ERCP, evaluate for changing indications for ERCP, and evaluate for interactions between cholecystectomy technique and ERCP use from 1984 to 2009. DESIGN: Retrospective, comprehensive, population-based study. SETTING: All inpatient and outpatient ERCPs and cholecystectomies in Manitoba, Canada from 1984 to 2009. PATIENTS: All residents of Manitoba, Canada with a history of ERCP and/or cholecystectomy. INTERVENTION: None. MAIN OUTCOME MEASUREMENTS: Yearly crude and age-adjusted rates of ERCP (diagnostic and therapeutic) and cholecystectomy (open, laparoscopic, and with open bile duct exploration), and patient and/or procedure demographics. RESULTS: The rate of ERCP/10,000 people increased from 7.70 (1984) to 13.86/10,000 (2009) (P = .001). Diagnostic ERCP declined from 7.28/10,000 (1984) to 1.11/10,000 (2009), and therapeutic ERCP increased from 0.42/10,000 (1984) to 12.75/10,000 (2009) (P 80 years), with rates of therapeutic ERCP reaching 62.58/10,000 in the elderly. The primary indication for ERCP has changed over time, with biliary indications increasing from 50.3% to 67.3% and pancreatic indications decreasing from 18.3% to 8.1% (P < .05). The rate of therapeutic ERCP increased during the transition from open to laparoscopic cholecystectomy (1991-1994), whereas open bile duct exploration (OBDE) decreased from 2.0 to 0.18/10,000 (P < .001). LIMITATIONS: Retrospective analysis, administrative data. CONCLUSION: ERCP use increased steadily from 1984 to 2009, and changed from a diagnostic modality to a therapeutic one. Changes in cholecystectomy technique may have influenced therapeutic ERCP use and likewise, the availability of therapeutic ERCP has decreased the need for OBDE.

These data were used to examine the relationship between parasite abundance, host diet, and host body condition in gray wolves from southeastern Manitoba. This study, published in the Journal of Animal Ecology, found wolves that consumed a higher proportion of beaver and caribou, estimated using stable isotope mixing models, had lower cestode abundance than wolves consuming moose and deer, the predominant ungulate prey in this area, suggesting the use of these alternative prey can reduce parasite loads.

The tropical buckeye, Junonia zonalis (Lepidoptera: Nymphalidae) is a recent addition to the butterfly fauna of mainland Florida. It appears that this species began to invade the mainland from the Florida Keys or Cuba by the 1930s, hybridizing with J. coenia and bringing with it mitochondrial haplotype group A, which is common in the Caribbean but is essentially absent from North American Junonia. By the 1940s, J. zonalis appears to have established populations in Miami, but eventually may have been extirpated. Later, new populations of J. zonalis may have become established on mainland Florida by subsequent waves of J. zonalis migrants. Substantial fluctuations in both population size and mitochondrial haplotype group A frequency seem to be characteristic of Florida mainland populations of J. zonalis. Populations of J. zonalis in the Florida Keys and Cuba have maintained nearly constant mitochondrial haplotype group A frequencies over many decades and may be more stable than those on the Florida mainland. Junonia zonalis specimens attributed to Chokoloskee, Florida, from the early 1900s have questionable provenance. Based on their haplotype frequency and other evidence these Chokoloskee specimens may have been collected in Cuba. Similarly, one specimen of J. zonalis likely collected during the 1880s and labeled “Indian River, Fla.” probably also originated from outside of Florida.

Dataset includes power and thrust coefficients of a 19.8 cm diameter horizontal axis hydrokinetic model turbine in yaw operation. Tests were done at 0.7, 0.9, and 1.1 m/s water speeds for three turbine configurations: the unshrouded turbine and the turbine with two different shrouds. Experiments were done for yaw angles from 5° to 25° in 5° intervals. Output power of the turbine and its thrust force are measured experimentally in a water tunnel. Results are corrected using a theoretical model that accounts for free surface proximity and blockage effects of the water tunnel.

We aimed to describe medication use in pregnancies that resulted in births and abortions. Rates of medication use among women with a pregnancy outcome (2001-2013) were described using the Manitoba Population Research Data Repository at the Manitoba Centre for Health Policy. Use was determined as > 1 prescription filled during pregnancies that resulted in births (livebirth/stillbirth) and abortions (spontaneous/induced). Rates were calculated at any time during pregnancy and after a pregnancy-related visit. Rates were additionally characterized by risk in pregnancy using Briggs classification (2017). Of 174,848 birth pregnancies, 64.9% filled > 1 prescription during pregnancy and 55.4% filled > 1 prescription after a pregnancy-related visit. Of 71,967 abortions, 44.7% filled > 1 prescription. Only 3.7% of birth pregnancies had ≥1 prescription for a contraindicated medication, whereas 10.8% of abortions filled a prescription for a contraindicated medication. The most common drugs used in pregnancy were amoxicillin, doxylamine, and codeine.