UoK Repository Home
→
Science
→
Symposia & Conferences
→
International Research Symposium on Pure and Applied Sciences (IRSPAS)
→
Recent submissions

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

Now showing items 581-600 of 612

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 ...
Silibinin sensitizes TRAIL-mediated apoptosis by upregulating DR5 through reactive oxygen species mediated endoplasmic reticulum stress-Ca2+-CaMKII-Sp1 pathway

Dilshara, M.G.; Bandara, M.M.K.; Jayawardana, B.C.; Vidanarachchi, J.K.; Jayasooriya, R.G.P.T.; Kim, G.Y. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)

The cytotoxic effect of tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) makes TRAIL a promising candidate for the treatment of various cancers. However, some cancers are resistant to the effects of TRAIL. ...
Camptothecin enhances c-Myc-mediated endoplasmic reticulum stress, leading to cytoprotective autophagy

Dilshara, M.G.; Bandara, M.M.K.; Kumara, M.H.S.R.; Molagoda, I.M.N.; Jayasooriya, R.G.P.T.; Kim, G.Y. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)

Camptothecin (CPT) is known to selectively inhibit the nuclear enzyme DNA topoisomerase I which catalyzes the relaxation of negatively supercoiled DNA and thus leads to cell cycle arrest and apoptosis through DNA damages. ...
Evaluation of nutrient and fiber content of selected invasive plants in Sri Lanka with a potential for preparing compost

Hewavitharana, N.; Kannangara, B.T.S.D.P.; Jayasekera, L.R.; Senanayake, S.P. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)

Based on availability, the amount of above ground bio-mass and the degree of use as compost in traditional farming systems Tithonia diversifolia, Chromolaena odorata, Mikania scandens, Lantana camara, Wedelia trilobata, ...
A preliminary floristic study of Chundikulam forest reserve in Jaffna peninsula

Ekanayake, G.C.M.; Medhavi, P.I.H.R.; Somasiri, R.P.I.V.; Jayalath, W.G.H.; Siriwardhana, K.H.W.; Samarasinghe, D.G.S.N.; Kannangara, S. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)

Chundikulam sanctuary is a reserve which is located in the Northern Province, in Jaffna peninsula. This reserve is situated in the dry zone of Sri Lanka and the area consists of mangroves along the shores and scrub lands ...
Optimization of a genomic DNA extraction technique for genetic diversity studies of selected orchid cvs. with ornamental values

Farook, F.; Attanayake, R.N.; Senanayake, S.P. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)

Orchidaceae is one of the largest and most diverse families of flowering plants and a major export ornamental crop. Cultivar development is the key for the success of ornamental flower industry and therefore, it is vital ...
Pleurostomophora richardsiae associated with decaying woods in a dry zone forest of Sri Lanka

Bandara, R.H.; Deraniyagala, S.R.A.S.; Attanayake, R.N. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)

Wood decay is a biological process by which cellulose and lignin are converted into carbon dioxide and water. This process is important for forest sustainability since it uses cellulose and lignin, the two most abundant ...
Study of pollen germination of Dendrobium cultivars

Silva, W.E.R.; Kahagalla, T.H.; Senanayake, S.P.; Attanayake, R. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)

Orchidaceae family includes more than 25,000 species, among which Dendrobium genus is one of the most numerous with over 1,200 species in the world. Orchid pollen is packaged as pollinia in which the pollen grains are ...
Screening endophytic fungi of Macromitrium sp. for potential degradation of PAHs

Ambadeniya, A.R.P.D.U.K.R.; Kannangara, S.; Abeywickrama, K. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)

With rapid industrialization and urbanization, emission of air pollutants to the atmosphere has been increasing rapidly for several decades. Out of many pollutants, polyaromatic hydrocarbons (PAHs) take a prime advertence ...
Assessment of phytochemicals and antifungal effect of Croton aromaticus against postharvest fungal pathogens isolated from tropical fruits

Wijesundara, S.A.D.T.L.; Kannangara, S.; Abeywickrama, K. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)

Chemical control using synthetic chemical fungicides is still the most common method of controlling postharvest diseases of fruits. Plant extracts which are rich in antimicrobial secondary metabolites such as terpinoids, ...

Recently added

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

Search Digital Repository

Browse

All of DSpace

This Community

My Account