International Research Symposium on Pure and Applied Sciences (IRSPAS): Recent submissions

  • On sum formulas for Mordell - Tornheim zeta values. 
    Pallewatta, M.; Kaneko, M. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    The multiple zeta values are real numbers which are studied by many people in different fields. The multiple zeta values with depth 1 are the Riemann zeta values. The sum formulas are considered as one of the most famous ...
  • Estimation of parameters in mathematical and statistical models and validation and verification of scientific simulations. 
    Jayantha, P. A. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    Mathematical and statistical models that describe real world phenomena consist of many parameters from which, some of the parameters cannot easily be identified. If there is a doubt in how those parameters can be estimated ...
  • Distribution of Pemphis acidula to enhance conservation measures in Puttalam lagoon, Sri Lanka. 
    Gunathilaka, M. D. K. L. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    Pemphis acidula have identified as a mangrove associate species, which is a rare species limited only to Puttalam lagoon area. This is identified as a near threatened species in Sri Lanka. The study aimed to identify the ...
  • Host Plant Preference of Genera Dendrobium and Bulbophyllum (Family: Orchidaceae) in Sri Lanka. 
    Sandamali, P. M. H.; Senanayake, S. P.; Benjamin, S. P.; Rajapakse, S.; Athukorala, N. P. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    Orchids are a well-known plant family for their restricted distribution in the wild. Most epiphytic orchids are hosted by specific trees and hence it’s abundance may be influenced by the availability of suitable host trees ...
  • Growth enhancement of Dracaena fragrans ‘Massangeana’ using Trichoderma species. 
    Kannangara, S. D. P. S.; Dissanayake, D. M. S. K.; Senanayake, R. A. S. P. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    Dracaena fragrans ‘massangeana’ is an ornamental monocot which belongs to the family Asparagaceae, having characteristic shiny green leaves with a yellow streak running down along the center. Although, foliage plant ...
  • Endophytic fungi as growth promoters of rice (variety Ld 368). 
    Priyadarshani, C. D. N.; Deshappriya, N.; Sandamali, T. G. I. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    Chemical fertilizers and pesticides are widely used in agriculture for increased growth and production of plants and for disease management in Sri Lanka. Long term use of these chemicals can cause hazardous effects on the ...
  • Development of a hydroponic test system for rapid screening of plant growth promoting microorganisms. 
    Perera, U. I. D.; Imasha, M. I. N.; Welikala, N. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    Plant-growth-promoting microorganisms (PGPMs) have become increasingly important in the agricultural production of many crops. It is envisioned that in the not too distant future, PGPMs will begin to replace the use of ...
  • Use of natural curcumin extracted from turmeric in determination of boron in steel. 
    Walpita, W. K. D. L. K.; De Silva, R.C.L. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    Boron containing alloy steels are used in constructional, automotive and many other applications. The presence of even trace amounts of boron affects greatly on the properties of steel such as hardness and machinability. ...
  • Production of bio-ethanol using pretreated lignocellulosic materials (rice husk, water hyacinth). 
    Arasaretnam, S.; ayasundara, J. M. P. W. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    Production from food sources such as corn, sugarcane etc. is the most predominant way of producing ethanol. This has led to a shortage in food, imbalance in food chain, increased food price and indirect land use. This study ...
  • Antioxident activitiy and α-amylase activity of pressurized water extract of Cinnamomum zeylanicum (L.) bark oil. 
    Wariyapperuma, W. A. N. M.; Jayawardena, B. M.; Kannangara, S. D. P.; Wijayasinghe, Y. S.; Skandaraja, S. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    Cinnamon (Cinnamomum zeylanicum) is an evergreen plant widely grown across Asia as a spice and to extract its essential oil. The composition of essential oil, obtained from different parts of the plant differ in chemical ...
  • Anticancer activity of Trichoderma harzianum extract against NCI-H292 lung cancer cells. 
    Sinthujah, S.; Samarakoon, S. R.; Tennakoon, K. H.; Attanayake, R. N.; Weerakoon, G.; Gunasegara, D. S.; Paranagama, P. A. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    Cancer is one of the leading causes of death worldwide. Chemotherapy has been the choice of cancer treatment for many years however, it can also affect normal cells and create many undesirable side effects and have the ...
  • RSM approach to study the influence of hard water on natural dyeing of cotton fabric by Punica granatum peels. 
    Khalid, I.; Ali, S.; Hussain, M.T.; Atif, M.; Habiba, U.; Iqbal, M.A. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    Hardness in the ground water poses adverse effects on the dyeing quality of textile products. In wake of a growing trend to adopt natural dyeing at commercial scale, a study was conducted to evaluate influence of water ...
  • Plant pathology in plant biosecurity. 
    Herath, A. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    Detecting and preventing entry of exotic pests at the border is critical for protecting incursions of new plant diseases. Countries which are geographically isolated from any significant landmass (Ex: New Zealand) have ...
  • Rumen microbiome: Exploring the adaptive roles of viruses and bacteria in the rumen. 
    Anderson, C. L.; Fernando, S.C. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    Complex and diverse microbial communities mediate the cycling of nutrients within ruminants. The structure of this complex microbial community is shaped by the highly variable physical, chemical and predatory environment. ...
  • Isolation, purification and structure elucidation of antimicrobial and bio-active compounds of soil fungi. 
    Wijesekara, W. A. M. A.; Wijesinghe, K.D.; Kumara, K. G. N. P.; Manage, P. M. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    Soil fungi are considered as a rich source of bioactive compounds and antibiotics. They are able to produce a great variety of secondary metabolites characterized by a broad spectrum of properties of bioactive compounds ...
  • Method validation of surface sampling. 
    Chamikara, H. J. M. P.; Abeygunawardena, G. A. S. I. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    Various types of solid surfaces are used by the manufacturers to carry out packaging of their healthcare products. In order to control microbial hazards, these surfaces are subjected to de-contamination processes to avoid ...
  • Screening local fungal isolates for their cellulases production: the applicability in producing bioethanol from cellulose. 
    Jayasekara, S. K.; Abayasekara, C. L.; Ratnayake, R. R. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    Being a highly abundant, inexpensive polysaccharide present in the environment, cellulose could be used as a substrate for good bioethanol production. However, the conventional physical and chemical methods of breaking ...
  • Evaluation of fungicide resistance of Sclerotinia sclerotiorum causing cabbage white mold in Sri Lanka. 
    Mahalingam, T.; Somachandra, K. P.; Rajapakse, C. S. K.; Attanayake, R. N. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    Incidence of severe white mold disease was extensively observed in upcountry commercial cabbage fields of Sri Lanka in early 2014. The pathogen was identified as Sclerotinia sclerotiorum, a nectrophic soil borne fungus ...
  • Screening of beach sand for bacterial treasures - A preliminary approach. 
    Joseph, T. T.; Abeygunawardena, S. I. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    Marine microorganisms are of great interest as novel and rich sources of biologically active products. The micro-organisms living in both sea water and sand must be able to survive and grow under harsh conditions. Due to ...
  • Molecular phylogeny of Bipolaris and Curvularia species associated with browntop millet. 
    Manamgoda, D. S.; Bauchan, G. R.; Berry, A.; Walker, S.; Castlebury, L.A. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    Browntop millet (Urochloa ramosa, Poaceae) is a warm season grass commonly used as a cover crop in pasture management systems. This species is inexpensive compared to other forage crops and its ability to easily reseed and ...

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