University of Colombo Sri Lanka Annual Research Symposium 2016 Empowering Humanity: Challenges and Responses PROCEEDINGS 11
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University of Colombo Sri Lanka Annual Research Symposium 2016 Empowering Humanity: Challenges and Responses PROCEEDINGS 11 - 22 October, 2016 PROCEEDINGS ANNUAL RESEARCH SYMPOSIUM 2016 UNIVERSITY OF COLOMBO The material in this publication has been supplied by the authors through the Faculty Representatives, as the final approved documents. Neither the University of Colombo nor the Editorial Committee is responsible for any material produced in this publication. October 2016 ISSN 2386-1916 Symposium logo design: FOS media Cover design: Shamanthi Rajasingham University of Colombo Annual Research Symposium 2016 ii UNIVERSITY OF COLOMBO, SRI LANKA OUR MOTTO ‘Buddhi Sarvathra Bhrajate’ Wisdom Enlightens OUR VISION A centre of excellence in the knowledge society OUR MISSION To be a benchmark setter in disseminating, creating and applying multi-disciplinary knowledge in the global presence producing human talents of high quality while upholding national values University of Colombo Annual Research Symposium 2016 iii University of Colombo Annual Research Symposium 2016 iv Organising Committee Symposium Committee Prof. Lakshman Dissanayake, Vice-Chancellor Prof. Marie Perera, Chairperson Dr. R.C.K. Hettiarachchi, Rector, Sri Palee Campus Prof. Athula Ranasinghe, Dean, Faculty of Arts Prof. Manjula Vidhanapathirana, Dean, Faculty of Education Prof. Nayani Melegoda, Dean, Faculty of Graduate Studies Ms. Indira Nanayakkara, Dean, Faculty of Law Dr. R. Senathirajah, Dean, Faculty of Management and Finance Prof. Jennifer Perera, Dean, Faculty of Medicine Prof. K.R.R. Mahanama, Dean, Faculty of Science Dr. Pradeepa Wijetunga, Librarian Mr. K.A.S. Edward, Registrar Mr. S.M.S.S. Nagahapitiya, Acting Bursar Ms. T.D.D. Pathiranage, SAR, Academic & Publications (Convener) Editorial Committee Dr. Shravika Amarasekara, Editor Dr. Naazima Kamardeen, Co-Editor Prof. Dushyanthi Mendis, Faculty of Arts Dr. Iresha Lakshman, Faculty of Arts Ms. E.S. Neranjani, Faculty of Education Dr. Achala Jayatillake, Faculty of Graduate Studies Dr. D.T.K. Kodagoda, Faculty of Management and Finance Prof. Priyanjali de Zoysa, Faculty of Medicine Dr. Ramal Coorey, Faculty of Science Dr. R.D. Gunaratne, Faculty of Science Dr. Dharmakeerthi Sri Ranjan, Sri Palee Campus Ms. Sajeewani Somaratne, Library University of Colombo Annual Research Symposium 2016 v Inauguration Committee Dr. Dilushan Jayasundara, Co-Chair Dr. Shrinika Weerakoon, Co-Chair Mr. A. Sarveswaran Dr. Kokila Konasinghe Dr. Manori Weeratunga Dr. Nirmali Wijayagunawardana Mr. Kapila Bandara Ms. G.Y. Ekanayake Dr. Shreenika Weliange Dr. Aashani Tilekeratne Dr. Gayani Perera Dr. Janaka Wansapura Dr. Ireshika de Silva Dr. Sugath Senarath Ms. Kalpana Manatunga Publicity Committee Dr. Hiran Jayaweera, Co-Chair Mr. Jude Nonis, Co-Chair Prof. Priyadarshani Galappatthy Prof. Samantha Herath Prof. Roshini Sooriyarachchi Prof. Deepthi Wickramasinghe Food and Refreshments Committee Dr. Dilrukshi Abeysinghe, Co-Chair Dr. Ashoka Ramananayake, Co-Chair Ms. Jeevani Herath Dr. Gayani Galhena Ms. S. Buvanendra Ms. M.A.L. Silva Ms. Kasuni Ranasinghe University of Colombo Annual Research Symposium 2016 vi CONTENTS Message from the Vice-Chancellor 9 Message from the Chairperson, Symposium Committee 11 Introduction to the Chief Guest 13 Introduction to the Keynote Speaker 14 Address by the Keynote Speaker 15 FACULTY SESSIONS Faculty of Arts 17 Message from the Dean, Faculty of Arts 18 Programme 19 Introduction to the Keynote Speaker 20 Keynote Address 21 Abstracts 23 Faculty of Education 83 Message from the Dean, Faculty of Education 84 Programme 85 Introduction to the Keynote Speaker 86 Keynote Address 87 Abstracts 88 Faculty of Graduate Studies 103 Message from the Dean, Faculty of Graduate Studies 104 Programme 105 Introduction to the Keynote Speaker 106 Keynote Address 107 Abstracts 110 University of Colombo Annual Research Symposium 2016 vii Faculty of Law 171 Message from the Dean, Faculty of Law 172 Programme 173 Introduction to the Keynote Speaker 174 Keynote Address 175 Abstracts 177 Faculty of Management and Finance 205 Message from the Dean, Faculty of Management and Finance 206 Programme 207 Introduction to the Keynote Speaker 208 Keynote Address 209 Abstracts 210 Faculty of Medicine 217 Message from the Dean, Faculty of Medicine 218 Programme 219 Introduction to the Keynote Speaker 220 Keynote Address 221 Abstracts 222 Faculty of Science 249 Message from the Dean, Faculty of Science 250 Abstracts 251 Sri Palee Campus 305 Message from the Rector 306 Abstracts 307 University of Colombo Annual Research Symposium 2016 viii Message from the Vice-Chancellor University of Colombo Professor Lakshman Dissanayake I am very happy to issue this message on the occasion of the Annual Research Symposium 2016 of the University of Colombo. The state of the research-teaching nexus affects the quality of the education provided by universities. Research has a clear potential to make significant contributions to the quality of education. Therefore, universities have an obligation to make the research-teaching nexus as strong as possible. The Annual Research Symposium provides an opportunity for the sharing of knowledge created through research across disciplines. This year, the theme of the Symposium is ‘Empowering Humanity: Challenges and Responses’. Empowerment can be defined as a means of improving the quality of life and expanding the basis of human well-being. In short, empowerment can serve as a mechanism for effecting deep and broad-based social transformation. Building the capacity of the world’s people and social institutions to create a prosperous and just society will require a vast increase in the access to knowledge. This will entail approaches that facilitate the generation, application, and diffusion of knowledge at the local level. Rather than unquestioningly adopting “solutions” developed elsewhere, an emphasis on strengthening local capacity to generate, apply, and disseminate knowledge can help put into place an ongoing process of action and reflection; one which encourages respect of the existing knowledge base of a community, raises the community’s confidence in its ability to devise, implement and assess solutions, and helps to systematize and expand local knowledge. If empowerment is to lead to social transformation, it must involve the ability to recognize the forces shaping one’s social reality, to identify the possibilities and challenges presented by that reality, and to devise initiatives for the betterment of society. The Annual Research Symposium of the University of Colombo has now become a regular feature in the University calendar and the large number of abstracts received this year by our academics and students shows the vibrant research culture in our university. I hope that the Annual Research Symposium 2016 will generate knowledge that will contribute to empower humanity. While congratulating the presenters and thanking the organising committee, I wish the Annual Research Symposium 2016 of the University of Colombo all success. University of Colombo Annual Research Symposium 2016 9 University of Colombo Annual Research Symposium 2016 10 Message from the Chairperson, Annual Research Symposium 2016 Professor Marie Perera On behalf of the Organising Committee, I warmly welcome you to the inaugural session and the technical sessions of the Annual Research Symposium of the University of Colombo, 2016. The Annual Research Symposium is a university - wide event which provides a platform to researchers of all disciplines to disseminate their findings, exchange knowledge and build partnerships. This year, the Symposium is held from 11th to 22nd October at the different Faculties and the Sri Palee Campus. While the overall theme of the Annual Research Symposium 2016 is ‘Empowering Humanity: Challenges and Responses,’ each Faculty has its own theme, which signifies its identity. About 220 abstracts are included in this year’s Symposium after double-blind peer review, under the guidance of the Editorial Committee. I am thankful to His Excellency Mr. Jörn Rohde, Ambassador of the Federal Republic of Germany to Sri Lanka, for gracing this occasion as our Chief Guest and Ms. Una McCauley, UN Resident Coordinator and UNDP Resident Representative in Sri Lanka for accepting our invitation as the Keynote Speaker for this year’s Symposium. I thank the Vice-Chancellor, Senior Professor Lakshman Dissanayake for his guidance and support in organizing this event. The success of any event depends ultimately on the people who have worked in planning and organizing it. I had an excellent team to help me in organising the Research Symposium 2016 and I thank them most sincerely. Finally, I would like to congratulate all paper presenters and wish them all an enriching and enjoyable experience. University of Colombo Annual Research Symposium 2016 11 University of Colombo Annual Research Symposium 2016 12 Introduction to the Chief Guest H. E. Mr. Jörn Rohde The Ambassador of the Federal Republic of Germany to Sri Lanka His Excellency Mr. Jörn Rohde assumed duties as the Ambassador of the Federal Republic of Germany to Sri Lanka in July 2016. Prior his appointment, Mr. Rohde served as the Consul General of the German Consulate General in Bangalore, India from 2013-2016. Mr. Rohde obtained his Bachelor’s Degree from Trent University, Canada and has studied Economics, Politics and Modern History. He has also obtained a Master’s Degree from Freiburg University Germany and a Diploma in Advanced European Studies from the College