Research

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  • Thinking through the basics: What we shouldn't take for granted about devices and networks delivering digital health services
    Thinking through the basics: What we shouldn't take for granted about devices and networks delivering digital health services
    • This presentatIon outlines some questIons and observatIons to encourage critIcal thought about what how digital technologies can be brought into healthcare. • The context is the use of smartphones and applicatIons to support patIent engagement with the healthcare system., Thinking through the basics: What we shouldn't take for granted about devices and networks delivering digital health services. Digital Potentials For Health: Narrowing The Divide. Canberra. May 2016.
    Third Sector Restructuring and the New Contracting Regime: The Case of Immigrant Serving Agencies in Ontario
    Third Sector Restructuring and the New Contracting Regime: The Case of Immigrant Serving Agencies in Ontario
    Many are aware of declining capacity in the NGO sector with respect to advocacy and community development, but to date there has been relatively little analysis of the causes and consequences of this alarming trend. As this paper will demonstrate, however, much more is at work in the service providing sector than simple “overload” due to expansion of service demands beyond available funding. We will document and analyse the ways that the NGO service sector in Canada, and with Ontario based immigrant serving agencies in particular, are being deliberately restructured through the shift from “core” to “program” funding, the de legitimization of community development work as a fundable service, and the imposition of complex and burdensome accountability schemes disguised as evaluation measures. We will also examine the consequences of this restructuring in terms of growing monopolisation within the sector and the consequent reduction of diversity of service alternatives, as well as reduced capacity for public education and community development. The paper will explore the paradox inherent in the fact that such restructuring is being imposed without public debate in the name of the public good, and propose potential solutions related to this crucial issue of Canadian public policy. As essential background to the analysis we will provide an overview of the growing and changing role of the “third sector” as the preferred delivery agent for human services within a downsized and globalized economy. Keywords: CVSS, Centre for Voluntary Sector Studies, Working Paper Series,TRSM, Ted Rogers School of Management Citation:, Richmond, T., & Shields, J. (2004). Third Sector Restructuring and the New Contracting Regime: The case of immigrant serving agencies in Ontario (Working Paper Series Volume 2004 (1)). Toronto: Ted Rogers School of Management, Centre for Voluntary Sector Studies, Ryerson University.
    Through a lens darkly: how the news media perceive and portray evangelicals
    Through a lens darkly: how the news media perceive and portray evangelicals
    Studying news is a guarantee against running out of research ideas. Who could have predicted the uproar over the behaviour of a Canadian prime minister at a Catholic funeral for a former Governor General? Perhaps only David Haskell, author of a new book, Through a Lens Darkly: How the News Media Perceive and Portray Evangelicals, that examines how Canadian journalists report on evangelical Christians., Smith, J. (2010). Through a Lens Darkly: How the News Media Perceive and Portray Evangelicals. Canadian Journal Of Communication, 35(1). Retrieved from http://www.cjc-online.ca/index.php/journal/article/view/2270/2153, Through a Lens Darkly: How the News Media Perceive and Portray Evangelicals. By David M. Haskell. Toronto: Clements Academic, 2009. 289 pp. ISBN 9781894667920
    Throughput Maximization Based on Optimal Access Probabilities in Cognitive Radio System
    Throughput Maximization Based on Optimal Access Probabilities in Cognitive Radio System
    Well-established fact shows that the fixed spectrum allocation policy conveys to the low spectrum utilization. The cognitive radio technique promises to improve the low efficiency. This paper proposes an optimized access strategy combining overlay scheme and underlay scheme for the cognitive radio. We model the service state of the system as a continuous-time Markov model. Based on the service state, the overlay manner or/and the underlay manner is/are used by the secondary users. When the primary user is not transmitting and only one secondary user has the requirement to transmit, the secondary system adopts the overlay scheme. When the primary user is transmitting and the secondary users want to transmit simultaneously, an underlay scheme with an access probability is adopted. We obtain the optimal access probability in a closed form which maximizes the overall system throughput, M. Elalem and L. Zhao, "Throughput Maximization Based on Optimal Access Probabilities in Cognitive Radio System," Communications and Network, Vol. 5 No. 3, 2013, pp. 204-210. doi: 10.4236/cn.2013.53024.
    TiO2 Nanofibrous Interface Development For Raman Detection of Environmental Pollutants
    TiO2 Nanofibrous Interface Development For Raman Detection of Environmental Pollutants
    Sensor development has been reliant on planar Au and Ag nanoparticle research. The current findings explored a unique 3-D network of crystalline TiO2nanoparticles linked as nanofibers. In addition to the favorability of using TiO2 for chemical and bio-molecular sensing, the nanofiber network provides molecular diffusion control and an increased confocal volume signal. Controlled femtosecond laser synthesis is also demonstrated that directly impacts surface-enhanced Raman spectroscopy detection of two common environmentally harmful chemicals: bisphenol A and diclofenac sodium salt. These findings assert that 3-D nanofibrous network porosity optimization is crucial for Raman monitoring of drinking water.
    Time-varying window length for correlation forecasts
    Time-varying window length for correlation forecasts
    Forecasting correlations between stocks and commodities is important for diversification across asset classes and other risk management decisions. Correlation forecasts are affected by model uncertainty, the sources of which can include uncertainty about changing fundamentals and associated parameters (model instability), structural breaks and nonlinearities due, for example, to regime switching. We use approaches that weight historical data according to their predictive content. Specifically, we estimate two alternative models, ‘time-varying weights’ and ‘time-varying window’, in order to maximize the value of past data for forecasting. Our empirical analyses reveal that these approaches provide superior forecasts to several benchmark models for forecasting correlations. Keywords: model uncertainty; variance and correlation forecasts; time-varying window length, Jeon, Y., & McCurdy, T. (2017). Time-Varying Window Length for Correlation Forecasts. Econometrics, 5(4), 54., (This article belongs to the Special Issue Volatility Modeling)
    Timing for delivering individualized patient education intervention to coronary artery bypass graft patients: an RCT
    Timing for delivering individualized patient education intervention to coronary artery bypass graft patients: an RCT
    Background: The primary focus of this study is on the timing of the delivery of education to patients who had CABG surgery. Aim: To determine the efficacy of an individualized telephone patient education intervention, delivered at two different points in time (1–2 days pre-discharge versus 1–2 days post-discharge) in enhancing the CABG patient's knowledge of self-care behaviours, performance of self-care behaviours, and symptom frequency. Method: A randomized clinical trial that included a convenience sample of first time CABG patients. Individuals who received education pre-discharge were compared to individuals who received education post-discharge on the outcomes. Results: Results indicated no statistically significant difference in outcomes between the two time points. As well, anxiety levels were found to be significantly higher in the pre-discharge group than the post-discharge group. Conclusions: The individualized nature of the educational intervention may have accounted for non-significant findings reported in outcomes between the two time points. Practice implications: Nurses may consider assessing anxiety levels prior to delivery of educational interventions, implement interventions aimed at reducing anxiety levels, and provide individualized teaching., Fredericks, S. (2009). Timing for delivering individualized patient education intervention to coronary artery bypass graft patients: An RCT. European Journal of Cardiovascular Nursing, 8(2), 144-150.
    Timing of surgical antibiotic prophylaxis administration: Complexities of analysis
    Timing of surgical antibiotic prophylaxis administration: Complexities of analysis
    Background The timing of prophylactic antibiotic administration is a patient safety outcome that is recurrently tracked and reported. The interpretation of these data has important implications for patient safety practices. However, diverse data collection methods and approaches to analysis impede knowledge building in this field. This paper makes explicit several challenges to quantifying the timing of prophylactic antibiotics that we encountered during a recent study and offers a suggested protocol for resolving these challenges.Challenges Two clear challenges manifested during the data extraction process: the actual classification of antibiotic timing, and the additional complication of multiple antibiotic regimens with different timing classifications in a single case. A formalized protocol was developed for dealing with incomplete, ambiguous and unclear documentation. A hierarchical coding system was implemented for managing cases with multiple antibiotic regimens.Interpretation Researchers who are tracking prophylactic antibiotic timing as an outcome measure should be aware that documentation of antibiotic timing in the patient chart is frequently incomplete and unclear, and these inconsistencies should be accounted for in analyses. We have developed a systematic method for dealing with specific problematic patterns encountered in the data. We propose that the general adoption of a systematic approach to analysis of this type of data will allow for cross-study comparisons and ensure that interpretation of results is on the basis of timing practices rather than documentation practices., BMC Medical Research Methodology 2009, 9:43. doi:10.1186/1471-2288-9-43
    Tonality of Low-Frequency Synthesized Piano Tones
    Tonality of Low-Frequency Synthesized Piano Tones
    The influences of inharmonicity and bandwidth on sensitivity to tonality in the low- frequency range (A0 to G#1 ) were tested in a listening experiment. Participants were presented a key-defining context (do-mi-do-so) and were asked to rate the goodness of fit of probe tones to the context. Probe tones were the 12 tones of the chromatic scale beginning on do. The set of 12 ratings, called the probe-tone profile, was compared to an established standardized pro- file for the Western tonal hierarchy. Prior research employing this method with real (sampled) piano tones has suggested that sensitivity to tonality is influenced by inharmonicity, partic- ularly in the lowest octaves of the piano where inharmonicity levels are substantially above the detection threshold. In the present experiment, sensitivity to tonality was tested using syn- thesized piano-like tones that were either harmonic or inharmonic. Participants were tested in either a broadband (no filtering) or low-pass (low-pass filtered at 1 KHz) condition. Sensitiv- ity to tonality was highest in the broadband harmonic condition followed by the broadband inharmonic condition. No sensitivity to tonality was found for the low-pass conditions; rather, for both harmonic and inharmonic tones, participants rated probe tones as increasingly good fit as pitch distance from do decreased.
    Tools for educators: strategies and ideas for facilitating online group work using project management principles.
    Tools for educators: strategies and ideas for facilitating online group work using project management principles.
    Group work can be used as an effective tool to help students learn from each other, build community and engage with the course content. The key to the success of a group is in the planning and understanding of the purpose of the work needed. The Technology Enhanced Collaborative Group Work (TECGW) indicated through their research on group work that the way in which instructors facilitate a group project has a major impact on the success of the group. Many educators incorporate group work in their courses, but they may not provide the necessary support to students working in these groups; consequently, students get discouraged, and may decline working in groups. In the online learning environments, with the elimination of physical presence, it is necessary to bring students simultaneously to collaborate on various activates of the course to enhance their engagement with each other, the content and the instructor. As technology plays a vital role in online environments, instructors need to develop strategies for students could help them in planning, collaborating and communicating, synchronously and asynchronously, effectively within a group. Project management concepts could effectively be utilized to help in facilitating students' group work. This paper, introduces effective strategies that will help instructors in facilitating group work by providing tools that students could utilize to understand and define their roles in the group. Additionally, the paper will introduce practices in creating group work assignments, supporting students in groups and enhancing communication among students in online environments. The paper provides some practices in using Web 2.0 tools that could facilitate the production of group work, and how these tools could facilitate learning among students working together on face-to-face and online courses. Keywords: Group Work, Project Management, Collaboration, Online Learning, Technology, Virtual Teams, Instructional Design, Web 2.0, Wikis, Google Drive, Blogs, Assessment, Rubrics., Hanna, D. (2013). Tools for Educators: Strategies and Ideas for Facilitating Online Group Work Using Project Management Principles. Proceedings from: The 5th International Conference on education and new Learning Technologies (EDULEARN13). Barcelona, Spain: IATED.
    Toronto's Little India: A Brief Neighbourhood History
    Toronto's Little India: A Brief Neighbourhood History
    This report explores the history of the area known as Toronto’s Little India. In particular, it investigates the contexts of urbanization, residential change, and business and work related to Little India from early settlement to the contemporary period. The aim is to understand the identity of the neighbourhood and provide a resource to the community.
    Toronto-Area Ethnic Newspapers and Canada's 2011 Federal Election: An Investigation of Content, Focus and Partisanship
    Toronto-Area Ethnic Newspapers and Canada's 2011 Federal Election: An Investigation of Content, Focus and Partisanship
    Canada's political class is embracing ethnocultural news media with increasing zeal, highlighting the need to understand the role of these news organizations in the political process. This study investigated coverage of Canada's 2011 federal election in five Toronto-area ethnocultural newspapers. The publications, which carried campaign news to varying degrees, provided coverage that was distinct in many ways from mainstream media. Content such as the focus on ingroup candidates had the potential to strengthen community bonds while more general election news equipped readers with information that would facilitate participation in society through informed voting. Analysis of reporting about the Conservative Party of Canada, which pursued an aggressive ethnic media strategy, identified no clear pattern of stories with explicitly biased content. In most newspapers, however, the CPC did enjoy an advantage in that it received more coverage than the competition., Lindgren, A. (2014). Toronto-area ethnic newspapers and canada's 2011 federal election: An investigation of content, focus and partisanship. Canadian Journal of Political Science, 47(4), 667. doi:10.1017/S0008423914000912