Research

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  •  A Unified Model for the Prediction of Yield Strength in Particulate-Reinforced Metal Matrix Nanocomposites
    A Unified Model for the Prediction of Yield Strength in Particulate-Reinforced Metal Matrix Nanocomposites
    Lightweighting in the transportation industry is today recognized as one of the most important strategies to improve fuel efficiency and reduce anthropogenic climate-changing, environment-damaging, and human death-causing emissions. However, the structural applications of lightweight alloys are often limited by some inherent deficiencies such as low stiffness, high wear rate and inferior strength. These properties could be effectively enhanced by the addition of stronger and stiffer reinforcements, especially nano-sized particles, into metal matrix to form composites. In most cases three common strengthening mechanisms (load-bearing effect, mismatch of coefficients of thermal expansion, and Orowan strengthening) have been considered to predict the yield strength of metal matrix nanocomposites (MMNCs). This study was aimed at developing a unified model by taking into account the matrix grain size and porosity (which is unavoidable in the materials processing such as casting and powder metallurgy) in the prediction of the yield strength of MMNCs. The Zener pinning effect of grain boundaries by the nano-sized particles has also been integrated. The model was validated using the experimental data of magnesium- and titanium-based nanocomposites containing different types of nano-sized particles (namely, Al2O3, Y2O3, and carbon nanotubes). The predicted results were observed to be in good agreement with the experimental data reported in the literature., Mirza, F. A., & Chen, D. L. (2015). A unified model for the prediction of yield strength in particulate-reinforced metal matrix nanocomposites. Materials, 8(8), 5138-5153. doi:10.3390/ma8085138, (This article belongs to the Section Advanced Composites)
     An action-based approach to improving pain management in long-term care
    An action-based approach to improving pain management in long-term care
    Purpose: The study purposes were twofold: (1) to explore barriers to pain management and those associated with implementing a pain management program in long-term care (LTC); and (2) to develop an interprofessional approach to improve pain management in LTC. Methods: A case study approach included both qualitative and quantitative components. We collected data at two LTC sites using six focus groups for the licensed nurses, unregulated care providers, and 10 interviews with other health care provider groups, administration, and residents. We reviewed documents and administered a short survey to study participants to assess perceptions of barriers to pain management. Results: The findings revealed barriers to effective LTC pain management at the resident/family, health care provider, and system levels. We then developed a six-tiered model with proposed interventions to address these barriers. Conclusions: This model can guide the development of innovative approaches to improving pain management in LTC settings., Kaasalainen, S., Brazil, K., Coker, E., Ploeg, J., Martin-Misener, R., Donald, F., . . . Burns, T. (2010). An action-based approach to improving pain management in long-term care. Canadian Journal on Aging, 29(4), 503-17.
     Educational intervention reduces complications and re-hospitalizations after heart surgery.
    Educational intervention reduces complications and re-hospitalizations after heart surgery.
    The effectiveness of in-hospital self-care patient education, delivered to patients following heart surgery, is questionable, as evidence indicates individuals are not able to absorb and/or retain information at this time. In the absence of adequate instruction, individuals will not have the relevant information to engage in specific self-care behaviors, resulting in the onset of complications and/or hospital readmissions. The purpose of this pilot study was to collect preliminary evidence to demonstrate the impact of an individualized education intervention given above and beyond usual care, delivered, at two points in time, following hospital discharge. A randomized controlled trial was used in which 34 patients were randomly assigned to one of two groups. Chi-square analyses to examine differences between groups on complications and hospital readmission rates were conducted. Findings point to the impact of the intervention in reducing the number of hospital readmissions and complications at 3 months following hospital discharge., Fredericks, S. & Yau, T. (2013). Educational intervention reduces complications and re-hospitalizations after heart surgery. Western Journal of Nursing Research, vol. 35, no. 10, 1251-1265.
     The Dardenne Brothers and the Invisible Ethical Drama: Faith without Faith
    The Dardenne Brothers and the Invisible Ethical Drama: Faith without Faith
    The cinema of the Dardenne brothers represents a new kind of cinema, one that challenges a number of our conventional ways of thinking about the distinction between religion and secularism, belief and unbelief. Their films explore the intricacies of spiritual and ethical transformations as they are experienced within embodied, material life. These features of their cinema will be examined primarily through the lens of Emmanuel Levinas’s philosophy of the imbrication of the drama of existence and the ethical intrigue of self and Other. The work of the Dardenne brothers can be understood as an attempt to express what I describe as a “faith without faith”—a recognition of the absolute centrality of belief for the development of a responsible subject but in the absence of a traditional faith in a personal deity., Caruana, J. (2016). The Dardenne brothers and the invisible ethical drama: Faith without faith. Religions, 7(5), 43. doi:10.3390/rel7050043, (This article belongs to the Special Issue Film and Lived Theology)
    "Suit the Action to the Word, the Word to the Action": An Unconventional Approach to Describing Shakespeare's Hamlet
    "Suit the Action to the Word, the Word to the Action": An Unconventional Approach to Describing Shakespeare's Hamlet
    In this paper, we will provide a summary of conventional and alternative AD practices. We will discuss a case account of an alternative AD strategy that was prepared for a live production of Hamlet using the subjective, emotional style proposed by Fels, Udo, Diamond & Diamond (2006a and b) and used by Udo & Fels (in press)., This is a post refereed version of a paper published in the Journal of Vision Impairment & Blindness. The published version of this paper can be found at http://www.afb.org/afbpress/pubjvib.asp?DocID=jvib0303toc
    'I Am Deeply Sorry’: An Exploration of the  Application of Apologetic Moves and Image Repair Strategies in the Celebrity Apology
    'I Am Deeply Sorry’: An Exploration of the Application of Apologetic Moves and Image Repair Strategies in the Celebrity Apology
    The apology is a component of post-crisis communication that has become a prominent subject of study (Slocum et al., 2011). Specifically, scholars agree that the proliferation of the official apology suggests that it is a genre of speech that is on the rise in the Western world (Wooten, 2009). While an extensive amount of literature on apology focuses on its use by organizations and political figures, little of it fails to address how celebrities apply the crisis response strategy to repair their reputation and/or restore relationships. For this reason, a qualitative content analysis rooted in a grounded theory approach was used to explore in what ways the celebrity apology conforms to or breaks the patterns of apology that have been established by scholars.
    (Free) Single Sign On Solution
    (Free) Single Sign On Solution
    Presented at ECIUG 09 - Ryerson University, April 3rd 2009
    3-D aluminum nanostructure with microhole array synthesized by femtosecond laser radiation for enhanced light extinction
    3-D aluminum nanostructure with microhole array synthesized by femtosecond laser radiation for enhanced light extinction
    This article presents 3-D aluminum micro-nanostructures for enhanced light absorption. Periodic microhole arrays were created by firing a train of femtosecond laser pulses at megahertz pulse frequency onto the surface of an aluminum target at ambient conditions. The laser trains ablated the target surface and created microholes leading to the generation of deposited nanostructures inside and around the microholes. These micro-nanostructures showed enhanced light absorption, which is attributed to surface plasmonics induced by the generation of both nano- and microstructures. These micro-nanostructures may be promising for solar cell applications., Mahmood, A. S., Venkatakrishnan, K., & Tan, B. (2013). 3-D aluminum nanostructure with microhole array synthesized by femtosecond laser radiation for enhanced light extinction. Nanoscale Research Letters, 8(1), 1-8.
    4D WATBAK: Adapting Research Tools and Epidemiological Findings to Software for Easy Application by  Industrial Personnel
    4D WATBAK: Adapting Research Tools and Epidemiological Findings to Software for Easy Application by Industrial Personnel
    We have extended the research methods used in epidemiological studies of low back pain into assessment software that is suitable for use by industrial personnel. The system we are developing extends the capability of current biomechanical modelling approaches in two ways. We now have the ability to calculate shift-long cumulative loading (load integrals) on the spine as well the peak hand forces and peak spine load forces. We can also use epidemiological evidence to provide insight into low back injury risk in the presence of multiple, proven injury risk factors. This decision support aspect of the tool helps users apply current scientific evidence to make better decisions about job design and ergonomic program performance in industrial settings., For a more in-depth look on this subject, please see: Norman, R., Wells, R., Neumann, W.P., Frank, J., Shannon, H. and Kerr, M., 1998. A comparison of peak vs cumulative physical work exposure risk factors for the reporting of low back pain in the automotive industry. Clinical Biomechanics, 13(8): 561-573. doi:10.1016/S0268-0033(98)00020-5
    A Canadian perception of the nursing practice, research, and theoretical implications associated with Autologous Cell Transplantation
    A Canadian perception of the nursing practice, research, and theoretical implications associated with Autologous Cell Transplantation
    Heart failure is a progressive disorder. An estimated 400,000 Canadians are diagnosed annually with heart failure, and a quarter experience severe heart failure that is unresponsive to medical therapy. Autologous cell transplantation (ACT) has been proposed as a new approach for cardiac repair, and holds enormous potential for the regeneration of injured myocardium cells. Currently, ACT is under investigation in Canada. The use of ACT as a treatment alternative for heart failure patients has been established over the past 5 years across Europe and the United States. This paper will present a Canadian perception of the nursing practice, research, and theoretical implications associated with this new and innovative therapy., Fredericks, S., & DaSilva, M. (2007). A Canadian perception of the nursing practice, research, and theoretical implications associated with Autologous cell transplantation. The Journal of Cardiovascular Nursing, 22, 5, pp. 375-379.
    A Case Study of the Ergonomic Consequences of Engineering Decisions
    A Case Study of the Ergonomic Consequences of Engineering Decisions
    For a more in-depth look on this subject, please see: Neumann, W.P., Kihlberg, S., Medbo, P., Mathiassen, S.E. and Winkel, J., 2002. A case study evaluating the ergonomic and productivity impacts of partial automation strategies in the electronics industry. International Journal of Production Research, 40(16): 4059- 4075. ://000180117700003.
    A Comparative Study of Conflicts Experienced Between Immigrant Parents in Canada and in Israel and Professionals in Educational Institutions about Appropriate Responses to Children's Misbehavior
    A Comparative Study of Conflicts Experienced Between Immigrant Parents in Canada and in Israel and Professionals in Educational Institutions about Appropriate Responses to Children's Misbehavior
    Online version of an article originally published as: Shor, R. & Bernhard, J. K. (2003). A comparative study of conflicts experienced between immigrant parents in Canada and in Israel and professionals in educational institutions about appropriate responses to children's misbehavior. Intercultural Education, 14:385-396. Publisher URL: http://www.informaworld.com/smpp/content~db=all~content=a715701495