Science Symposium - Faculty of Science: Recent submissions

Now showing items 21-40 of 163

Consumption of Cow Milk and Goat Milk: A study among 1AB School A/L Students in Jaffna Municipal Council Area

Guberan, G.; Sarmini, N.; Silva, K.F.S.T. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2013-01-09)

This paper presents the investigation on availability, consumption pattern, and factors affecting the consumption of cow milk and goat milk among A/L students of 1AB schools in Jaffna Municipal Area. From each school more ...
Morphological variation in some populations of Systomus sarana in Sri Lanka and a comparative analysis with Systomus sarana from Kerala-India

Irfan, F. Inaza; Gunawickrama, K.B. Suneetha (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2013-01-09)

The freshwater cyprinid fish that has long been identified as Systomus sarana (Puntius sarana) is a widespread species in Sri Lanka. Taxonomic complexity of this species has been indicated by previous literature, but no ...
Checklist of Siganids from the Jaffna lagoon, Sri Lanka

Tharmine, N.; Sivashanthini, K. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2013-01-09)

Jaffna lagoon in Northern Province of Sri Lanka is an important fishing area which also harbours high marine biodiversity. Members of the family Siganidae are commercially and economically important species among mangroves ...
Gill and Liver histological alterations in juvenile Oreochromis niloticus exposed to contaminated sediment from a fisheries harbour

Gunawickrama, S.H.N.P.; Hettiarachchi, D.D.; Gunawickrama, K.B. Suneetha (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2013-01-09)

Histo-pathological biomarkers are widely used to elucidate potential toxicological impact of contaminated sediments on organisms, including fish. A controlled laboratory experiment of sediment toxicity was carried out ...
Growth performance of Wedelia trilobata in Matara District and its competition and allelopathic effect on Axonopus compressus

Dissanayaka, N.P.; Lakmini, T.G.I.; Masakorala, K. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2013-01-09)

Invasive alien plants have caused extensive economic and ecological damages throughout the world. Many coconut cultivated lands which dominated with grasses in Southern Sri Lanka have been invaded by recently introduced ...
Superheated steam blasting for cleaning and sterilization of clay pots used for curd packaging

Dharmasena, D.A.N.; Pandithage, D.D.C.; Fernando, G. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2013-01-09)

Use of hygienic packaging materials is very important to avoid microbial contaminations that lead to poor shelf life of curd. Microbial and dust contaminations in clay pots are found to be a major problems in using ...
Effect of fertilizer on agronomic characters and yield in forty traditional rice cultivars in Sri Lanka

Amarasinghe, U.G.S.; Ranawake, A.L.; Senanayake, S.G.J.N. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2013-01-09)

Traditional rice gene pool in Sri Lanka consists of various biotic and abiotic stress tolerant cultivars. Some of the traditional rice cultivars have been studied in systematic way to understand their ability to withstand ...
Design and construction of an Anemometer with a Wind Vane

Udayani, M.K.S.; Ranatunga, E.M.; Mahanama, G.D.K. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2013-01-09)

An Anemometer is a device for measuring wind speed and is a common instrument used at weather stations. Weather stations such as Meteorology department need to measure both wind speed and the wind dkection for making ...
Analyzing persistence of life insurance policy using survival model

Hasanthika, N.H.E.; Jayasekara, L.A.L.W.; Gunnathilake, B.B.G. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2013-01-09)

The objective of this study is to identify the risk factors those caused for increasing the persistence of life insurance policy, based on one of the wellknown insurance company in Matara. In this study, the life ...
Risk factors of the childhood asthma in the Colombo Municipal Council area: Bayesian approach on logistic regression model

Prasangika, K.D.; Jayasekara, L.A.L.W.; Piyathilake, I.T.S.; Samarasinghe, A.I.P.; Fonseka, P.H. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2013-01-09)

Asthma is one of the most common chronic diseases in the child-hood in both developing and developed countries. The objective of this study was to examine the relationship between the childhood asthma and the risk ...
An Improved Method of Kernel Smoothing with Boundary Corrections in Nonparametric Regression Analysis

Vimalajeewa, H.D.; Abeyratne, M.K. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2013-01-09)

Besides the classical parametric regression methods, the nonparametric regression is a widely used alternative method of which any predefined functions of finite number of parameters are not required. In nonparametric ...
Wireless Multiple Choice Question/Answer evaluation system for classrooms

Vitharana, V.H.P.; Abeywickrama, S.S.; Dharmarathna, W.G.D.; Yapa, K.K.A.S. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2013-01-09)

Multiple Choice Questions (MCQs) have become a routine question answering method to assess student readiness for lectures in aedassroom. The task of developing a wireless system to do such a testing procedure has been ...
Information geometry of mean-field approximation for third-order classical and quantum Boltzmann machines

Yapage, N.; Rathnayake, K.W. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2013-01-09)

We apply the concepts of information geometry to study the mean-field approximation for a general class of quantum statistical models namely the third-order quantum Boltzmann machines (QBMs). The states we consider are ...
Monthly changes in gonad, muscle and liver lipid of female Scomberoides lysan from Northern waters of Sri Lanka

Sutharshiny, S. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2013-01-09)

The present study was carried out to assess the monthly fluctuation of lipid content in gonad, muscle and liver tissues of Scomberoides lyan. Monthly fish samples of 442 adult female fish captured from the northern waters ...
Estimation of growth parameters for tropical Scomberoides lysan (Carangidae)

Thulasitha, W.S.; Sivashanthini, K. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2013-01-09)

The present study was carried out to understand the growth parameters of the tropical double spotted queen fish, Scomberoides lysan. Growth parameters of S. lysan such as asymptotic length, growth coefficient and age ...
Recolonization of anuran amphibians in the Knuckles Mountain Forest Range in Sri Lanka: A success story

Weerawardhena, Senarathge R.; Russell, Anthony P. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2013-01-09)

The vast majority of the virgin forest in the Central Region in Sri Lanka, including that in the Knuckles Mountain Forest Range (KMFR), has been cleared for agricultural purposes. As a result of these uncontrolled ...
A study on the effect of some factors on rooting and plantlet regeneration of Chirita zeylanica and C. walkeri leaf cuttings

Welmillage, S.U.; Dissanayake, N.P.; Rubasinghe, M.K. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2013-01-09)

Chirita zeylanica and Chirita walkeri (Gesneriaceae) are endemic wild flowering plant species found in Sri Lanka having an exploitation potential within commercial floriculture. Both species can be propagated by seedlings, ...
Effect of submerged and exposed aeration on dissolved oxygen in soaking water and germination of paddy grains

Kannan, N.; Dharmasena, D.A.N.; Mannapperuma, J.D. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2013-01-09)

Rice is the staple food grain in Sri Lanka and therefore 34% of the total cultivated land is under paddy. About 70% of people in Sri Lanka consume parboiled rice and the cold water soaking in parboiling process utilizes about ...
Variability of noise levels at the main bus stand at Matara, Sri Lanka: Preliminary results

Sethunga, S.M.N.; Bodhika, J.A.P.; Dharmaratna, W.G.D. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2013-01-09)

standardized B&K hand held Analyzer type-2250. A-weighted average sound pressure level, LAeq, and C-weighted peaks sound pressure level, Lcpeak, were measured at four locations inside the bus stand where the traffic volume ...
Three-dimensional structural model of rRNA (guanine-N (2)- ) - methyltransferase by homology modeling

Godakumbura, K.K.D.T.D.; Ubhayasekera, W.; Gangabadage, C.S. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2013-01-09)

The biological function of a protein is largely determined by its threedimensional structure. However, to date only -16% of protein threedimensional structures, from existing protein sequences, «have been deposited in ...

Now showing items 21-40 of 163

Search DSpace

Advanced Search

Browse

All of DSpace
This Community
- By Issue Date
- Authors
- Titles
- Subjects

Recently added

Science Symposium - Faculty of Science: Recent submissions

Search DSpace

Browse

All of DSpace

This Community

My Account