IRSPAS 2016: Recent submissions

  • Modelling the material cost of newspaper industry in Sri Lanka 
    Jayasinghe, J.M.T.N.; Abeygunawardana, R.A.B. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)
    Pricing of a product is the most critical issue that confronts most of firms. In order to make a product price, the company has to master all product cost information as well as the product cost structure. In newspaper ...
  • Impact of mathematics on academic performance of engineering students: A canonical correlation Analysis 
    Nanayakkara, K.A.D.S.A.; Peiris, T.S.G. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)
    Mathematics plays a key role in higher education as it is particularly essential to develop the analytical thinking of students. Mathematical skills would certainly assist to enhance students’ knowledge in a wide range ...
  • A novel, ultra-fast electrochemical tool to study speciation of trace metals in aqueous solution 
    Pathirathna, P.; Siriwardhane, T.; McElmurry, S.P.; Morgan, S.L.; Hashemi, P. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)
    Trace metals play important roles in biological and ecological systems. In biology, trace metals act as catalytic or structural cofactors and regulate biochemical processes. In the environment, natural and anthropogenic ...
  • Surface characterization of chemically modified biochar derived from rice straw 
    Irosha, K.P.C.; de Silva, D.S.M.; Rathnaweera, D.R. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)
    Biochar produced by decomposing variety of biomass feedstock is a carbon rich product that act as an efficient material for various applications such as contaminant management in soil and water, soil amendment in agriculture ...
  • Electrodeposition of well-adhered CdTe thin films for solar cell applications 
    Atapattu, H.Y.R.; de Silva, D.S.M.; Pathiratne, K.A.S. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)
    Among the second generation thin film photovoltaics, CdS/CdTe based solar cell device is one of the leading contenders for large scale commercialization. Since the CdTe is the crucial absorber material of the foregoing ...
  • An investigation of the adsorption of dye (Bromothymol Blue) by Sri Lankan montmorillonite clay 
    Premaratne, W.A.P.J.; Perera, V.M. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)
    Textile industries use dyes and pigments to color their products and thus produce wastewater containing organics with a strong color. However most of the synthetic dyes used in textile industry usually composed of aromatic ...
  • Extraction of copper from copper bearing sulfide ores (chalcopyrite) by oxidative chemical leaching 
    Premaratne, W.A.P.J.; Dharmarathna, A.C.S. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)
    The extraction of copper from primary copper sulfide ores is much complicated and expensive. However, the successful metal extraction from natural mineral resources is very important, both environmentally and economically. ...
  • Isolation and identification of naphthalene degrading bacteria from a polluted environment 
    Bandara, M.M.K.; Bamunuarachchige, T.C. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)
    Hydrocarbon pollution is one of the major environmental problems and this has led to studies on use of hydrocarbon degrading bacteria for bioremediation. Isolation of hydrocarbon degrading bacteria from a polluted ...
  • Isolation and identification of some members of skin flora 
    Thushani, B.G.V.; Edirisinghe, E.A.A.D. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)
    Skin is the largest organ of the human body and provides habitat for a diverse flora of microorganisms although it is an inhospitable place for many microorganisms because of the acidity and antimicrobial secretions of ...
  • Construction of biosensors using lux operon 
    Munasinghe, D.T.P.; Gunawardane, M.M. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)
    The lux operon is the cluster of genes that encode luminescence in light emitting bacteria. Expression of this operon or parts of it can be utilized in the construction of biosensors, which are genetically modified ...
  • Comparison of different culture media in MPN method for the estimation of coliforms and E. coli in tea and herbs 
    Perera, W.D.H.N.; Asalaarachchi, G.; Abeygunawardena, S.I. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)
    Estimation of coliforms and E coli are two major parameters that are used in microbial quality processes in food and, generally these organisms are tested via Most Probable Number (MPN) method. This method is one of the ...
  • Toxic effects of 2,2’,3,5’,6 polychlorinated biphenyls (PCB-95) on startle response of Zebrafish larvae 
    Ransinghe, P.; Chapman, S.; Lee, C.M. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)
    Epigenetic factors influence the early neurodevelopment of an organism with longlasting effects on brain function and behavior. But underlying mechanisms of these factors interactions are not fully elucidated. Polychlorinated ...
  • Efficacy of Dummaladi lepa on fissuring in Vipadika 
    Jayakody, J.A.D.P.P.; Abegunasekara, N.S. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)
    "Vipadika" is a dry skin disease on feet with severe itching and pain, This study was aimed to determine the efficacy of "Dummaladi lepa" which is very safe, effective and curative external mode of therapy without side ...
  • Effect of different storage conditions on the nitrite levels of human saliva 
    Sewwandi, A.L.S.; Jayathilaka, N.; Seneviratne, K.N. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)
    Nitric oxide (NO) is an intracellular messenger molecule that plays an important role in biological systems as a physiological and pathophysiological mediator. Therefore, levels of NO in biological fluids reflect ...
  • Use of miR-33a in human plasma as a potential biomarker for severe Dengue infection 
    Hapugaswatta, H.; Seneviratne, K.N.; Jayathilaka, N. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)
    MicroRNAs (miRNAs) are small noncoding RNAs about 22 nucleotides long that can regulate the gene expression at mRNA level by RNA silencing. As such, differential expression of miRNA leading to regulation of gene expression ...
  • In vivo expression of H69-targeting peptides in bacteria 
    Muthunayake, N.; Dremann, D.; Colangelo, W.; Cunningham, P.R.; Chow, C.S. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)
    Identifying novel drug targets within the bacterial ribosome is an important approach to overcome the well-known problem of antibiotic resistance. The specific region of the ribosome under investigation in this study is ...
  • Antioxidant activities in extracts of five plant sources on stabilization of stripped sunflower oil and egg yolk homogenate 
    Senanayake, C.M.; Seneviratne, K.N. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)
    out to evaluate the antioxidant potential of five natural sources namely, coconut cake (A), Psidium guajava L. leaf (Guava) (B), Psidium guineense Sw. leaf (Ambul guava) (C), rice bran (D) and sesame cake (E) in both ...
  • Determination of polyphenol content in coconut milk by modified Folin-Denis assay 
    Nadeeshani, R.; Seneviratne, K.N.; Jayathilaka, N. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)
    Polyphenols are micronutrients which has nutritional value owing to their antioxidant activity. Polyphenol content is usually determined by the standard Folin-Denis Assay. Water soluble compounds commonly present in ...
  • Isolation and characterization of rhizobia from leguminous plants 
    Wijesundera, S.H.; Halmillawewa, A.P. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)
    Rhizobia play a significant role in agriculture. Their ability to fix atmospheric nitrogen through formation of root nodules in leguminous plants contributes in increasing legume yield. The present study was carried out ...
  • Survey on ethnomedicinal uses of Eriocaulon ceylanicum in a selected division in Kuliyapitiya 
    Wijesinghe, W.A.M.S.; Jayakody, J.A.D.P.P. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)
    Therapeutic effects and medicinal efficacy of the wild herbs were identified and administered by the ancient people to cure various ailments.Recently, the practice of herbal medicine has been diminishing, which may lead ...

Search Digital Repository


Browse

My Account