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UNIVERSITY OF COLOMBO SRI LANKA ANNUAL RESEARCH SYMPOSIUM 2019 Health and Well-Being PROCEEDINGS 22 November 2019 i PROCEEDINGS ANNUAL RESEARCH SYMPOSIUM 2019 UNIVERSITY OF COLOMBO, SRI LANKA 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. November 2019 ISSN 2386-1916 Symposium logo design: Nadeesha Keragala Cover design: FOS Media Formatting: Minoli Wijetunga and Sandani Yapa Abeywardena ii UNIVERSITY OF COLOMBO, SRI LANKA OUR MOTTO ‘Buddhi Sarvathra Bhrajate’ Wisdom Enlightens OUR VISION To be a center of global excellence in education, research and stakeholder engagement to enrich human potential for the betterment of society. OUR MISSION To discover and disseminate knowledge; enhance innovation; and promote a culture of broad inquiry throughout and beyond the university through engagement and collaboration with industry and community. iii iv ORGANISING COMMITTEE Main Committee Symposium Committee Prof. Chandrika N Wijeyaratne, Vice-Chancellor Prof. Naazima Kamardeen, Chairperson Prof. R. C. K Hettiarachchi, Rector, Sri Palee Campus Prof. Premakumara de Silva, Dean, Faculty of Arts Dr. L. M. Kapila Bandara, Dean, Faculty of Education Prof. Nayani Melegoda, Dean, Faculty of Graduate Studies Prof. W. I. Nanayakkara, Dean, Faculty of Law Dr. M. P. P. Dharmadasa, Dean, Faculty of Management and Finance Prof. Jennifer Perera, Dean, Faculty of Medicine Prof. K. R. R. Mahanama, Dean, Faculty of Science Prof. J. K. D. S. Jayanetti, Dean, Faculty of Technology Prof. Devaka Weerakoon, Dean, Faculty of Nursing Mr. K. A. S. Edward, Registrar Dr. Pradeepa Wijetunga, Librarian Ms. K. S. T. S. Jayasooriya, Bursar Ms. T. D. D. Pathiranage, SAR, Academic & Publications (Convener) Editorial Committee Dr. Dinithi Karunanayake, Editor Dr. Chamila Dalpatadu, Co- Editor Dr. Kaushalya Perera, Faculty of Arts Ms. Jeevani Herath, Faculty of Education Dr. Ravinda Tissa Kumara, Faculty of Management & Finance Dr. Dushyanthi Jayawardena, Faculty of Medicine Dr. S. Warnakulasuriya, Faculty of Nursing Dr. Kanchana Abeysekara, Faculty of Technology Prof. S. P. Premaratne, Faculty of Graduate Studies Ms. Danushka Medawatte, Faculty of Law Prof. Ramanie Wijesekara, Faculty of Science Dr. Jayantha Wannisinghe, Sri Palee Campus Dr. Ruwan Gamage, NILIS Ms. P. K. S. Manatunga, Library Network v Inauguration Committee Prof. Kumudinie Dissanayake, Faculty of Graduate Studies Dr. Dilushan Jayasundara, Faculty of Science Dr. Aashani Tillekaratne, Faculty of Science Dr. Santhushi Amarasuriya, Faculty of Medicine Dr. Anushka Elvitigala, Faculty of Nursing Dr. Jayani Wewelwala, Faculty of Technology Ms. Yuganthi Subasinghe, Faculty of Arts Ms. Sithari Thilakaratne, Faculty of Education Mr. U. G. Chandrajith, Faculty of Education Ms. Udapadie Liyanage, Faculty of Law Ms. Uthpala Herath, Sri Palee Campus Ms. Sajeewani Somaratne, Library Network Ms. Nadeesha Perera, Library Network Ms. W. Eranga Iroshani, SDC Publicity Committee Prof. Samantha Herath, Journalism Unit Dr. Hiran Jayaweera, Department of Physics Ms. Sajitha Lakmali, Sri Palee Campus Mr. Layan Chathuranga, NOC Ms. Nadeesha Keragala, Faculty of Medicine Food & Refreshments Committee Dr. Wimal Hewamanne, Department of Buddhist Studies Dr. Tharusha Goonaratne, Department of Accounting Ms. Shiroma Malkanthi, Faculty of Nursing Dr. Udara Muthugala, Faculty of Technology Ms. Uthpala Herath, Sri Palee Campus Mr. Chaminda Padmakumara, Faculty of Graduate Studies vi CONTENTS Message from the Vice Chancellor, University of Colombo 01 Message from the Symposium Chair 03 Message from the Minister, City Planning, Water Supply and Higher 05 Education Message from the Secretary, Ministry of City Planning, Water Supply 07 and Higher Education FACULTY SESSIONS Faculty of Arts 09 Message from the Dean, Faculty of Arts 11 Programme 13 Introduction to the Keynote Speaker 14 Keynote Abstract 16 List of Abstracts 18 Abstracts 22 Faculty of Education 53 Message from the Dean, Faculty of Education 55 Programme 56 Introduction to the Keynote Speaker 57 Keynote Abstract 58 List of Abstracts 59 Abstracts 61 vii Faculty of Graduate Studies 75 Message from the Dean, Faculty of Graduate Studies 77 Programme 78 List of Abstracts 79 Abstracts 83 113 Faculty of Law Message from the Dean, Faculty of Law 115 Programme 116 Introduction to the Keynote Speaker 117 Keynote Abstract 119 List of Abstracts 121 Abstracts 124 Faculty of Management and Finance 147 Message from the Dean, Faculty of Management and Finance 149 Programme 150 Introduction to the Keynote Speaker 151 Keynote Abstract 152 List of Abstracts 153 Abstracts 154 Faculty of Medicine 159 Message from the Dean, Faculty of Medicine 161 Introduction to the Keynote Speaker 163 Abstract 164 List of Abstracts 165 Abstracts 168 viii Faculty of Nursing 187 Message from the Dean, Faculty of Nursing 189 Introduction to the Keynote Speaker 190 Message from the Keynote Speaker 192 List of Abstracts 193 Abstracts 194 Faculty of Science 199 Message from the Dean, Faculty of Science 201 List of Abstracts 202 Abstracts 207 Faculty of Technology 243 Message from the Dean, Faculty of Technology 245 Programme 246 Introduction to the Keynote Speaker 247 Keynote Abstract 248 List of Abstracts 250 Abstracts 252 Sri Palee Campus 261 Message from the Rector, Sri Palee Campus 263 List of Abstracts 264 Abstracts 265 ix Library Network 271 Message from the Librarian 273 Programme 274 Introduction to the Keynote Speaker 275 Keynote Abstract 276 List of Abstracts 277 Abstracts 279 National Institute of Library and Information Sciences (NILIS) 291 Message from the Director 293 Programme 294 Introduction to the Keynote Speaker 295 Keynote Abstract 296 List of Abstracts 297 Abstracts 299 x MESSAGE FROM THE VICE CHANCELLOR UNIVERSITY OF COLOMBO Senior Professor Chandrika N. Wijeyaratne It is my privilege and pleasure to pen this message of felicitation for the flagship event in our annual calendar – the Annual Research Symposium. Teaching, research and scholarship are the fundamental constituents that reveal the quality and relevance of any seat of higher learning. The Annual Research Symposium of our university provides an ideal opportunity to highlight the research capability and potential of our own academic staff and students. This year’s symposium portrays these attributes with a greater magnitude in scope and outlook, by being conducted as the culmination of the two key events of the Asian Universities Alliance (AUA). The University of Colombo is the only Sri Lankan university among the fifteen-member consortium that comprises this esteemed alliance. Our university has the added privilege of holding the Executive Presidency in 2019, which brings with it the responsibility of hosting the Executives’ Meeting and the Youth Forum of the Alliance. Our symposium this year is centred around the chosen theme “Health and Well-Being” that serendipitously provides the perfect platform to celebrate the 150th anniversary of the birth of this institution in the form of the Ceylon Medical College. Therefore, the symposium and the AUA events that are occurring simultaneously give us an opportunity to truly celebrate our university and its potential. Almost all the events are scheduled to take place within the university precincts, with College House – a symbol of our cultural heritage – as the focal point. Our events are strengthened by the support and collaboration of the Ministry of Higher Education and the World Health Organisation. This indeed has raised the bar of our academic profile with a clear validation of the relevance of our outputs from a national context. We are honoured by the presence and participation of the Presidents and key decision makers of the best universities in Asia, who are our partners in the AUA. 1 Their contributions have added value to our programmes. It is my fervent wish that the initiatives taken at these fora will not be confined to fostering closer ties between our institutions, but will also lead to effective networking and more productive collaborations that would benefit the wider society in which we live and serve. I also take this opportunity to felicitate the organizing team of academics, researchers, administrators and students, so ably led by Chairperson Prof Naazima Kamardeen and by the administrative lead for research and development Ms Tharushika Pathiranage, and the multitude of administrators and support staff alike. I thank our sponsors and well-wishers, chief among them our alumni. My very best wishes for fruitful deliberations go out to all of you. 2 MESSAGE FROM THE SYMPOSIUM CHAIR ANNUAL RESEARCH SYMPOSIUM 2019 Professor Naazima Kamardeen It is with great pleasure that I pen these words on the occasion of the Annual Research Symposium of the University of Colombo for 2019. This annual event showcasing the research capabilities of our staff has taken a new dimension this year, as it coincides with the Executives Meeting and Youth Forum of the Asian Universities Alliance, which our University is proud to host. In keeping with the timely theme “Health and Well-Being” which connects meaningfully with the 150th anniversary of our university’s oldest institution, the Faculty of Medicine, our annual research symposium this year promises a stimulating array of events that highlight the role of the University of Colombo as the premier research institution in Sri