University of Manitoba

About: University of Manitoba is a education organization based out in Winnipeg, Manitoba, Canada. It is known for research contribution in the topics: Population & Health care. The organization has 31888 authors who have published 66592 publications receiving 2095493 citations.

Some sensory effects of hydrocolloid sols on sweetness

Abstract: SUMMARY: Sweetness-texture interactions in cornstarch, guar and carboxymethylcellulose were assessed by a trained sensory panel. Viscosity curves over a range of sucrose levels from 2.5 to 5.5% in the three gums were determined using a Brookfield viscometer. The relationship between viscosity curves and sweetness perception determined by rates of sweetness recognition, matching of equisweetness in different gums, apparent levels of sweetness and ranking of series of gums in order of sweetness indicated that gums with less viscosity drop as shear rates increase tend to mask sweetness perception.

Changes in shoreline vegetation over a 50-year period in the Delta Marsh, Manitoba in response to water levels

Abstract: Prior to 1961, the water levels of Lake Manitoba and the adjacent Delta Marsh fluctuated synchronously with a range of more than 2.2 m. Since 1961, the water level of Lake Manitoba has been regulated to fluctuate less than 0.6 m. Aerial photographs were used to quantify changes between the pre- and postregulation distribution ofTypha species,Phragmites australis, andScolochloa festucacea along elevation gradients in the marsh. Pre-regulation shorelines were dominated byPhragmites. After regulation,Typha expanded up the elevation gradient, encroaching onPhragmites, and expanded down the gradient, invading shallow water. This study suggests that with continued stable water levelsTypha will expand further along the elevation gradient leading to the eventual in-filling of the Delta Marsh.

H2-antihistamines for the treatment of anaphylaxis with and without shock: a systematic review.

Abstract: Background Anaphylaxis is a serious allergic or hypersensitivity reaction, which is rapid in onset and sometimes can prove fatal. Although H 2 -antihistamines are often administered for emergency treatment in anaphylaxis, there is uncertainty about their effectiveness in this disease. Objective To assess the benefits and harms of H 2 -antihistamines in the treatment of anaphylaxis. Methods A systematic review was performed of randomized controlled trials and quasi-randomized controlled trials comparing H 2 -antihistamines with placebo or no intervention in patients with anaphylaxis. Results The authors failed to identify any eligible studies for inclusion in this systematic review. Conclusion When H 2 -antihistamines are recommended for anaphylaxis treatment, the status of the evidence base supporting their use should be described. Well-designed randomized controlled trials investigating the role of H 2 -antihistamines in anaphylaxis treatment are urgently needed.