Browsing 07th Science Symposium - 2010 by Title

Browsing 07th Science Symposium - 2010 by Title

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  • Analysis of genetic variation of Cinnamomum species by Randomly Amplified Polymorphic DNA (RAPD) 
    Samanthika, K.C.; Abeysinghe, P.D.; Wijesinghe, K.G.G. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2010-12-15)
    The potential use of the Randomly Amplified Polymorphic DNA (RAPD) technique was investigated for Cinnamomum spp. found in Sri Lanka. Immature leaf samples of six wild Cinnamomum spp. (C. dubium, C. litseaefolium, ...
  • Analysis of zooplankton diversity and abundance in Bundala lagoon in Bundala National Park with reference to the aquatic habitat characters 
    Dayasiri, P.B.I.A.K.; Chandana, E.P.S.; Amarasinghe, N.J. De S.; Samayawardhena, L.A. (Faculty of Science, University of Ruhuna, Matara, Si Lanka., 2010-12-15)
    Bundala National Park (BNP) of Sri Lanka has been designated as a Ramsar wetland in 1993. Present study (year 2009) has investigated tht physicochemical parameters and zooplankton diversity in the aquatic environments ...
  • Comparative analysis of protein and lipid contents of two ‘prawn/shrimp’ species in Sri Lanka 
    Thushari, G.G.N.; Munasinghe, D.H.N. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2010-12-15)
    Macrobrachium rosenbergii and Penaeus monodon are two commercially important prawn species in Sri Lanka. Macrobrachium rosenbergii is mainly a fresh water prawn while P. monodon is a marine form. In this study, protein ...
  • Construction of a three-dimensional structural model for tRNA methyltransferase 
    Piyasena, M.D.C.P.; Ubhayasekera, W.; Gangabadage, C.S. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2010-12-15)
    Three-dimensional structures of proteins are essential for understanding their functions. X-ray crystallography and NMR spectroscopy are widely used experimental methods for structure determination of proteins. However, ...
  • Contents 
    Unknown author (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2010-12-15)
  • Cover page 
    Unknown author (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2010-12-15)
  • Dependence of CMC of SDS micelles on Sodium Chloride and in the presence of some amino acids 
    Wanasinghe, W.M.N.S.; Gangabadage, C.S. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2010-12-15)
    Detergents are organic amphipathic molecules containing “hydrophobic tail” and “hydrophilic head” groups. Critical micelle concentration (CMC) is known as the concentration of detergent in bulk at which micelles start ...
  • Details 
    Unknown author (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2010-12-15)
  • A dynamical system for natural resistance against Malaria N. M. 
    Kariyawasam, N.M.B.; Shanthidevi, K.C.N. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2010-12-15)
    Malaria is a parasitic disease that is spread by the Anopheles mosquitoes. There are 2 million deaths from Malaria each year, making it one of the world's deadliest diseases. Most of the fatal cases of Malaria are in ...
  • Effect of pre-sowing treatment on seed germination and seedling vigour in Sri Lankan Exacum trinervium, an endemic herb 
    Vithanage, D.S.; Dissanayaka, N.P.; Dayananda, T.G.; Krishnarajah, S.A.; Rubasinghe, M.K. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2010-12-15)
    Exacum trinervium (Gentianaceae) is a threatened endemic medicinal and ornamental plant for which ex-situ cultivation has been recommended as a conservation strategy. Although the seeds germinate, seedling growth is ...
  • Evidence for geographic heterogeneity and population differentiation in Puntiuschola (Cyprinidae) using morphometric analysis 
    Gunawickrama, K.B. Suneetha; Dilrukshana, D.A.M.; Gunawickrama, S.H.N.P. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2010-12-15)
    Intraspecific variation in selected morphometries was studied in Puntius chola, a freshwater Cyprinid commonly reported Sri Lanka. Linear data on 18 morphometries were obtained from individual fish collected from localities ...
  • Genetic variability of Exacum trinervium complex in Sri Lanka 
    Vithanage, D.S.; Dayananda, T.G.; Dissanayaka, N.P.; Krishnarajah, S.A.; Rubasinghe, M.K. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2010-12-15)
    Exacum walkeri, E. trinervium, E. axillare and E. trinervium complex including four sub species; E. trinervium, subsp. trinervium, subsp. ritigalensis, subsp. pallidum and subsp. macranthum are medicinal and ornamental ...
  • Investigation of first and higher order Finite Difference Schemes for selected ID and 2D Fluid Flow Problems 
    Gomas, D.I.; Abeyratne, M.K. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2010-12-15)
    Numerical simulation nowadays has become an effective tool to obtain quantitative information of flow field (velocity, pressure, etc) in real life fluid dynamics applications. Simulation of free surfaces is an essential ...
  • Investigation of lead (Pb) content in Ipomea aquatica (Kankun) grown in the area around Matara 
    Hemalika, D.V.D.; Bulugahapitiya, Vajira P. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2010-12-15)
    The aquatic plant water spinach, Ipomea aquatica either wild or cultivated, is a widely consumed vegetable throughout the Southeast Asia. Due to the unplanned dumping of the garbage to the environment, industrialization ...
  • Life cycle of the fruit borer in Mangrove Apple, Sonneratia caseolaris (L.) Engl., in Sri Lanka 
    Rajapaksha, A.C.D.; Wickraamsinghe, M.G.V.; Jciyatissa, L.P.; Dahdouh- Guebas, F. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2010-12-15)
    The main objective of the present study was to describe the life cycle of the fruit borer in mangrove apples, a prerequisite for controlling the major pest of mangrove apple fruits as it will pave the way to commercialize ...
  • Morphological relationships of Devario (Family- Cyprinidae) morphotypes/ species 
    Asha, R.L.; De Silva, M.P.K.S.K. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2010-12-15)
    Devario also known as Danio is a fish Genus that contributes to the diversity of freshwater fishes of Sri Lanka. Devario species is also important in aquarium trade mainly because of their bright colouration, body shape ...
  • Numerical Solution of the Schrodinger Equation 
    Damayanthi, E.K.N.; Jayatilaka, K.P.S. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2010-12-15)
    The most basic problem in quantum mechanics is to solve the stationary Schrodinger equation for the energy eigenvalues and the associated energy eigenfunctions. There are number of important cases for which the stationary ...
  • A practical device to reduce the wastage of cooking gas 
    Weerasinghe, W.M.B.P.; Dharmarathna, W.G.D.; Ranatunga, E.M. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2010-12-15)
    A practical low cost device was invented to reduce the wastage of cooking gas. The device can be used in cooking with spherical bottom pans like, "thachchiya”, which are used in many Sri Lankan households. The main objective ...
  • Preliminary study on identification of morphological and genetic differences found in micro-propagated Ambul Banana variety in Sri Lanka 
    Abeykoon, A.M.R.M.; Hemamali, K.K.G.U.; Ketipearachchi, Y.; Edirisinghe, E.S.C. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2010-12-15)
    Ambul banana is an important fruit crop and popular commercial cultivar in the wet zone and the intermediate zone in Sri Lanka. The only improved variety available today is “Nadhe” which is also a local selection o f ...
  • Programming of a simple molecular dynamic simulation using open source software 
    Jayathilakci, R.M.R.M.; Yapa, K.K.A.S.; Dharmarathna, W.G.D. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2010-12-15)
    Molecular Dynamics (MD) simulation is a technique for computing equilibrium and dynamic properties of a classical many-body system. The key ingredients in carrying out a MD simulation are the potentials used to model ...

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