Iveson J.,Sheridan College
CSEDU 2015 - 7th International Conference on Computer Supported Education, Proceedings | Year: 2015
Task-based language teaching (TBLT) is a widely applied approach in second language education. The benefits and challenges of TBLT have been debated over the past thirty years. The advent of technology enhanced learning (TEL) and the use of TBLT in online and blended contexts have revealed further benefits and challenges with this approach. This study briefly summarises the historical background of TBLT, common approaches to TBLT and definitions of tasks. The paper then reviews recent literature relating to TBLT and TEL with specific reference to challenges involving student participation, negotiated meaning and focus on form. The study argues for a comprehensive reaßeßment of TBLT frameworks in order to addreß technology related challenges of the TBLT approach.
Ghobeity A.,Sheridan College |
Mitsos A.,RWTH Aachen
Current Opinion in Chemical Engineering | Year: 2014
An overview of recent advancements in systematic optimization of the design and operation of water desalination is presented. A brief summary of various techniques and optimization tools that have recently been applied to desalination to optimize the design and/or operation, and some of the findings of various optimization case studies are discussed. Decoupling of equation-oriented, physics-based models from the optimization algorithm has allowed for simulation and optimization of rather complex concepts. These concepts include time-variable operation and superstructure optimization via MINLP. Novel hybrid desalination configurations based on MED, multi stage flash (MSF), and thermal vapor compression (TVC) have been developed. There are new challenges and opportunities for advancement of desalination technologies, including the need for treatment of frack water as well as microgrid/off-grid and renewable energy based desalination. © 2014 Published by Elsevier Ltd. All right reserved.
Sinnock H.J.,Sheridan College
WEEC 2015 - World Energy Engineering Congress | Year: 2015
In 2010, the Office for Sustainability at a large community college in Ontario, Canada made its proposal to the Chief Financial Officer to undertake a strategic planning process which would examine the long-term economic and environmental risks surrounding energy use at the institution and provide a new vision for the institution's energy future. This process kicked off a two-year journey that would ultimately lead to Executive and Board approval of the team's recommendation to invest $30.6M over 7 years in a comprehensive energy and greenhouse gas reduction solution, on the basis of anticipated financial returns, the boost to the college's reputation, and possibilities for leading-edge curriculum. The resulting plan anticipates breakthrough performance targets including reducing site energy by at least 50% before 2020, reducing GHG emissions by at least 40% by 2020, generating an acceptable financial return, creating a campus-wide energy culture, ensuring reliability of energy supply, and using the college as a "living laboratory" to develop sustainability, energy and climate curricula. After two years of implementation, work and savings are progressing as described in the planning documents. The college has saved hundreds of thousands of dollars and is on track to save millions per year by 2018. The process of developing these breakthrough targets and paving the path to successful approval is repeatable and innovative. It eliminates many of the pitfalls that can turn an extraordinary plan with breakthrough goals into an incremental, budget-driven project wish list.
Halket A.,McMaster University |
Halket A.,Sheridan College |
Stratford P.W.,McMaster University |
Kennedy D.M.,McMaster University |
And 3 more authors.
Journal of Arthroplasty | Year: 2010
Hierarchical linear modeling was used to establish differences in, and the average pattern of, recovery of the pain subscale of the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) and 2 composite performance-specific measures of pain as well as to determine if significant individual variations exist in the growth curves for each measure. Predictors of postoperative pain were also of interest. One hundred forty-seven patients undergoing unilateral primary hip or knee arthroplasty completed 4 performance measures-self-paced 40-m walk, timed up and go, stair test, and 6-minute walk-and the WOMAC prearthroplasty and at multiple points in time between 2 and 27 weeks postarthroplasty. Although patients reported different levels of postoperative pain initially, similar recovery patterns were noted. Predictive variables were found to be site of joint arthroplasty and WOMAC prearthroplasty pain scores for the WOMAC pain subscale, the site of joint arthroplasty and sex for the first composite pain score, and sex for the second composite. © 2010 Elsevier Inc. All rights reserved.
Ginter J.K.,Sheridan College |
Ginter J.K.,Trent University |
Krithika S.,University of Toronto |
Gozdzik A.,Li Ka Shing Knowledge Institute |
And 3 more authors.
BMC Geriatrics | Year: 2013
Background: Physiological and lifestyle factors put older adults at an increased risk of vitamin D insufficiency and resulting negative health outcomes. Here we explore the vitamin D status in a sample of community dwelling older adults of diverse ancestry living in the Greater Toronto area (GTA). Methods. Two hundred and twenty-four (224) adults over 60 years of age were recruited from the Square One Older Adult Centre, in Mississauga, Ontario. Circulating 25-hydroxyvitamin D (25(OH)D) concentrations were measured from dried blood spot cards. Dietary and supplemental intakes of vitamin D were assessed via questionnaires. Skin pigmentation was assessed quantitatively by measuring melanin levels using a reflectometer. Results: The mean 25(OH)D concentration in the total sample was 82.4 nmol/L. There were no statistically significant differences in serum 25(OH)D concentrations, supplemental or dietary vitamin D intakes between the three major ancestral groups (East Asians, Europeans and South Asians). Females had significantly higher 25(OH)D concentrations than males (84.5 nmol/L vs. 72.2 nmol/L, p = 0.012). The proportion of participants with 25(OH)D concentrations below 50 nmol/L and 75 nmol/L were 12.1%, and 38.8%, respectively. The mean daily supplemental intake of vitamin D was 917 IU/day. Vitamin D intake from supplements was the major factor determining 25(OH)D concentrations (p < 0.001). Conclusions: Mean concentration of 25(OH)D in a sample of older adults of diverse ancestry living in the GTA exceeded 80 nmol/L, and there were no significant differences in 25(OH)D levels between ancestral groups. These results sharply contrast with our recent study focused on young adults of diverse ancestry living in the same geographic area, in which we found substantially lower 25(OH)D concentrations (mean 39.5 nmol/L), low supplemental vitamin D intake (114 IU/day), and significant differences in 25(OH)D levels between ancestral groups. High daily intake of supplemental vitamin D in this sample of older adults likely accounts for such disparate findings with respect to the young adult sample. © 2013 Ginter et al.; licensee BioMed Central Ltd.