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    Spoken Sinhala vocalism
    (University of Kelaniya, 1992) Karunatilake, W.S.
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    Buddhism discernible in Science
    (University of Kelaniya, 1992) Ariyarathne, J.K.P.
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    The origin of natural laws, cosmology and fundamental particle
    (University of Kelaniya, 1992) Wolff, M.
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    Use of microbial processes in the extraction of metals
    (University of Kelaniya, 1992) Widanapathirana, G.S.
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    The changing quality of life
    (University of Kelaniya, 1992) Fonseka, C.
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    A treatise on gems
    (University of Kelaniya, 1992) Mudiyanse, N.
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    Sustainable exploitation of brackish water fishery resources of Sri Lanka
    (SILVER JUBILEE COMMEMORATION VOLUME- November 1992, 1992) Wijeyaratne, M.J.S.
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    Role and the function of flower in Buddhism
    (University of Kelaniya, 1992) Marasinghe, M.M.J.
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    Xenobiotic metabolism in animals
    (University of Kelaniya, 1992) Pathiratne, A.
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    Chemical Specification of Nickel-Glycinate Complexation
    (Journal of Science of the University of Kelaniya Sri Lanka, 2003) Liyanage, J.A.
    Analytical techniques which facilitate determination of concentrations of metal ions, solvated protons and hydroxo-complexes or equivalent can be used to study the complexation of metal ions and ligands. Complex speciation measurements using glass electrode potentiometry , which allows a fast, reproducible determination of equilibrium concentrations is an electrometric titration technique used for the determination of formation constants of ligands.The technique does not disturb the labile equilibrium between metal ions, ligands and protons. The computer program ESTA (Equilibrium Simulation for Titration Analysis)is a complex and sophisticated speciation program used to analyse potentiometric titration data and to simulate equilibrium distributions of chemical species. This applies weighted leat squares objective functions to analytical parameters such as titre volume and emf readings. The chemical combination of nickel (Il)-glycinate-proton system has been chosen and activities of component in the equilibrium system were kept constant by working in a medium of high and constant ionic strength of 150 mmol dm-3 sodium chloride inert electrolyte medium, which approximates to that of most biological fluids, in order to express the formation constant in concentration terms. The experimental protonation curve shows that the ligand has two protonation sites and formation and deprotonation curves show that the metal to ligand complexation ratio is up to 1:3. Estimates for the protonation and formation functions obtained were optimized and the refined constants were calculated. Results were further substantiated by the good superimposability of the experimental and simulated curves. The species distribution diagrams confirm that the complexation between nickel (II) and glycinate is up to 1:3.
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    Success factors in Information Technology applications in small and medium scale industries - the Sri Lankan experience
    (Journal of Science of the University of Kelaniya Sri Lanka, 2003) Munasinghe, L.; Jayawardena, D.P.W.
    This paper argues that the industrialist in developing countries should make use of the opportunities made available by the rapid advancement of information technology to enhance the competitiveness. Most of the enterprises that have made an attempt towards this have not realized the expected benefits of implementing Management Information Systems (MISs). The main reason for this being the lack of understanding of the factors which influences the success of MISs. The main objective of this paper is to identify the factors having a positive influence on success of MISs. The present levels of application for each of the potential areas were assessed.The impact of several factors, which are likely to influence the success of the MISs were analysed. This paper identifies the importance of high commitment of management, efficient manual procedures, high level company wide computer literacy, adequate knowledge of management techniques of the systems analysts and a number of other factors for the success of MISs argues the need for a shift of the policy of IT and management education to strengthen the success factors.
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    Arginine Decarboxylase from the pathogenic fungi, Colleotrichum gleosporosides : Purification and Properties
    (Journal of Science of the University of Kelaniya Sri Lanka, 2003) Weerasooriya, M.K.B.; Handagiripathira, H.M.N.L.; Wijewickrama, G.T.
    Arginine decarboxylase, a polyamine biosynthetic enzyme, was isolated from a phytopathogenic fungi, Colletotrichum gleosporoides, which causes Anthracnose in wide range of plants in many parts ofthe world. The enzyme was purified 25 fold with 16.7% recovery by elution through Sepharose 4B gel column and DEAE Cellulose ion exchange column. As determined by Sepharose 4B gel chromatography, the native molecular mass of the purified enzyme was ~265kDa. SDS-PAGE of the purified enzyme showed two bands around 65 kDa and ~25 kDa, suggesting that possibly this enzyme could be a hexamer of above two sub units. Optimum pH and temperature for the enzyme was 5.2 and 40�C respectively . Beyond 50�C enzyme activity slowly declined and was almost deactivated by 80�C. Approximate Km of the enzyme for the substrate arginine was 67mM.
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    The role of Information Technology trends in planning an Information Technology led development strategy for Sri Lanka
    (Journal of Science of the University of Kelaniya Sri Lanka, 2003) Munasinghe, L.; Jayawardena, D.P.W.
    It is important to accurately identify the trends of a technology to formulate realistic policies relevant to it. Number of examples related to IT industry proves that this is no exception to IT. This article discusses the global trends of IT applications in areas like education, acces to information, governance, public services, business & commerce, industry , agriculture, home & leisure and their relevance to Sri Lanka . The potential key impediments and trends with respect to the two main investment opportunities namely the software and IT education & training are also highlighted. Sri Lanka has the potential to take advantage of the emerging trend s in many areas. This paper stresses the need to formulate a national policy on IT that would actively promote its application in as many spheres as possible and eliminate the obstacles stifling their implementation.
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    A statistical analysis of the monthly mean maximum air temperature in Colombo, Sri Lanka
    (Journal of Science of the University of Kelaniya Sri Lanka, 2003) Hewapathirana, T.K.
    The present study was carried out to fit a mathematical model to describe the variation pattern of monthly mean maximum air temperature in Colombo in order to predict the future values. Monthly mean maximum temperature values for a period of over 35 years were used for the analysis : Time series statistical methods were considered to study the trend and seasonal , cyclic and irregular components. The long term pattern in tlie variation of,monthly mean maximum temperature in Colombo appears to be dominated by a pronounced seasonal effect. The highest seasonal effect was found to be in March . It was found that the temprature of a particular month depends on the lagged temperature values of the two preceding months.
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    Harnessing Information Technology for national development: A policy framework for Sri Lanka
    (Journal of Science of the University of Kelaniya Sri Lanka, 2003) Munasinghe, L.; Jayawardena, D.P.W.
    Unprecedented advancements in Information Technology have made mankind very much dependant on it for a wide array of activities. IT also has paved a path for developing countries like Sri Lanka to overcome the severe challenges imposed by the globalisation of economic and financial activities. Therefore, the time is opportune for Sri Lanka to embrace IT and harness its capabilities for national development. Sri Lanka possesses the necessary prerequisites like a literate population and a liberalised economy, which would make this a relatively easy task. This paper discusses the measures needed to strengthen the key enabling factors for proliferation of IT including IT manpower and IT literacy, information infrastructure and legislation, measures needed to promote application of IT for activities falling under the major potential areas including education, access to information, governance, public services, business & commerce, industry, agriculture and home & leisure activities. The paper also presents measures to reap the maximum benefits of the two sectors related to IT having the greatest potential for success i.e., software industry and IT education & training. The paper argues the importance of incorporating the measures discussed under the above categories if Sri Lanka is to successfully harness the opportunities made available by IT for its development.
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    Roost Selection of the Short-Nosed Fruit Bat, Cynopterus spp. in Sri Lanka
    (Journal of Science of the University of Kelaniya Sri Lanka, 2003) Digana, P.M.C.B.; Yapa, W.B.; Randeniya, R.V.; Ratnasooriya, W.D.
    A total of 160 day roosts of short nosed fruit bats (Cynopterus sp.) were examined during a 3 year study in Sri Lanka. Day roosts were found in five species of trees; Talipot palm (Corypha umbraculiferay), Coconut (Cocos nucifera), Banana(Musa sp.), Habarala (Alocasia sp.) and Kitul (Caryota urens). A11 the day roostsfound in this study can be categorized in to three groups, viz, tents, foliage roosts and seed string roosts. Majority (92%) of day roosts were in the form of tents, all of which were found in the talipot palm. Foliage roosts ( 7%) were found in three species of plants (c. nucifera, Musa sp., Alocasia sp.) while two (1%) of the roosts were found in Kitul palm, inside the seed strings. Our observations indicate that the tents are constructed by male bats and serve as the primary roosts of the Cynopterus.