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Winnipeg, Canada

Canadian Mennonite University is a Christian university located in Winnipeg, Manitoba, Canada that awards three and four-year degrees in a variety of programs. A member of the Association of Universities and Colleges of Canada , CMU offers classes in three different settings: its Shaftesbury campus in southwest Winnipeg, at Menno Simons College, on the campus of The University of Winnipeg, and Outtatown, a program of cross-cultural study, service, and faith formation with program sites in Guatemala and Africa. Wikipedia.

Derksen R.W.,University of Manitoba | Rogalsky T.,Canadian Mennonite University
Advances in Engineering Software | Year: 2010

The numerical search for the optimum shape of an aerofoil is of great interest for aircraft and turbomachine designers. Unfortunately, this process is very computationally intense and can require a large number of individual flow field simulations resulting in very long CPU run times. One of the core issues that the designer must deal with is how to describe the shape of the airfoil. Clearly, we cannot treat the profile on a point by point basis as the problem would have an infinite number of degrees of freedom. Hence the typical practice is to resort to using a series of curves, such as polynomials and Bezier curves, to describe the profile. This typically reduces the number of degrees of freedom to a much smaller, manageable number. The influence of the selection of the parameterization on the optimization has received relatively little consideration to date. We can anticipate that some parameterizations will be less suitable for describing the profile shape and may result in slower convergence times. Our paper will discuss a new airfoil parameterization, Bezier-PARSEC, that was developed to extend and improve the typical Bezier parameterization found in use. This parameterization was found to fit the known shape of a wide range of existing airfoil profiles as well as resulting in accelerated convergence for aerodynamic optimization using Differential Evolution. Our presentation will present the development and details of the Bezier-PARSEC parameterization and provide evidence that the parameterization is suitable and accelerates convergence. © 2010 Elsevier Ltd. All rights reserved. Source

KRAUSE R.J.,Canadian Mennonite University | KOSKI K.G.,McGill University | PONS E.,Ministry of Health | SINISTERRA O.,Ministry of Health | SCOTT M.E.,McGill University
Parasitology | Year: 2016

This longitudinal study explored whether aspects of subsistence agriculture were associated with presence and intensity of Ascaris and hookworm in preschool children in rural Panama. Questionnaires were used to collect data on household socio-demographics, child exposure to agriculture and household agricultural practices. Stool samples were collected from children (6 months–5 years) at 3 time points, with albendazole administered after each to clear infections, resulting in 1 baseline and 2 reinfection measures. A novel Agricultural Activity Index (AAI) was developed using principal components analysis to measure the intensity of household agricultural practices. Zero-inflated negative binomial regression models revealed baseline hookworm egg counts were higher if children went to the agricultural plot and if the plot was smaller. Baseline and reinfection Ascaris egg counts were higher if children went to the plot and households had higher AAI, and higher at baseline if the plot was smaller. Caregiver time in the plot was negatively associated with baseline Ascaris egg counts, but positively associated with baseline hookworm and Ascaris reinfection egg counts. Children who spent more time playing around the home were less likely to be infected with Ascaris at baseline. We conclude that preschool child exposure to subsistence agriculture increased Ascaris and hookworm intensity. Copyright © Cambridge University Press 2016 Source

Newmaster S.G.,University of Guelph | Ragupathy S.,University of Guelph | Dhivya S.,Bharathiar University | Jijo C.J.,Bharathiar University | And 2 more authors.
Genome | Year: 2013

Our research seeks to investigate genomic diversity of landraces of millet, addressing a key uncertainty that will provide a framework for (i) a DNA barcode method that could be used for fast, sensitive, and accurate identification of millet landraces, and (ii) millet landrace conservation including biocultural diversity. We found considerable intraspecific variation among 15 landraces representing six species of small millets using nuclear regions (ITS, ITS1, and ITS2); there was no variation in plastid regions (rbcL, matK, and trnH-psbA). An efficacious ITS2 DNA barcode was used to make 100% accurate landrace assignments for 150 blind samples representing 15 landraces. Our research revealed that genomic variation is aligned with a fine-scale classification of landraces using traditional knowledge (TK) of local farmers. The landrace classification was highly correlated with traits (morphological, agricultural, and cultural utility) associated with considerable factors such as yield, drought tolerance, growing season, medicinal properties, and nutrition. This could provide a DNA-based model for conservation of genetic diversity and the associated bicultural diversity (TK) of millet landraces, which has sustained marginal farming communities in harsh environments for many generations. © 2013 Published by NRC Research Press. Source

Brubacher J.L.,Canadian Mennonite University | Vieira A.P.,University of Illinois at Urbana - Champaign | Newmark P.A.,University of Illinois at Urbana - Champaign
Nature Protocols | Year: 2014

The flatworm Schmidtea mediterranea is an emerging model species in fields such as stem cell biology, regeneration and evolutionary biology. Excellent molecular tools have been developed for S. mediterranea, but ultrastructural techniques have received far less attention. Processing specimens for histology and transmission electron microscopy (TEM) is notoriously idiosyncratic for particular species or specimen types. Unfortunately, however, most methods for S. mediterranea described in the literature lack numerous essential details, and those few that do provide them rely on specialized equipment that may not be readily available. Here we present an optimized protocol for ultrastructural preparation of S. mediterranea. The protocol can be completed in 6 d, much of which is 'hands-off' time. To aid with troubleshooting, we also illustrate the major effects of seemingly minor variations in fixative, buffer concentration and dehydration steps. This procedure will be useful for all planarian researchers, particularly those with relatively little experience in tissue processing. © 2014 Nature America, Inc. Source

Patel K.,Canadian Mennonite University | Guenther D.,Menno Simons College | Wiebe K.,University of Winnipeg | Seburn R.-A.,University of Winnipeg
Food Security | Year: 2014

Although the street food sector plays an important role in urban food security, state-led food security measures in India have failed to provide a role for poor urban street food vendors to engage in the distribution and consumption of healthy foods. Instead, state-led food security schemes, whether production, distribution, or consumption oriented, have viewed the urban poor simply as beneficiaries of subsidized grain. This case study illustrates how the street food sector, operated by poor urban vendors selling ready-to-eat, healthy millet-based porridges in Madurai, has improved access to nutritious foods and created livelihood opportunities for the urban poor. The paper provides an overview of the informal street food sector, socioeconomic conditions of vendors, gender-based division of labour, as well as the food preferences and health awareness of consumers. Analysis of the data indicates the marginalization of street food vendors under the existing policy environment in urban India. The paper discusses how the state, as a regulatory body and a service delivery agent, as well as research and development organizations can strengthen the rights and capabilities of street vendors and, in doing so, improve urban food security. © 2014, Springer Science+Business Media Dordrecht and International Society for Plant Pathology. Source

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