Browsing JSc - Journal of Science by Issue Date

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Cholesterol lowering effect of Aporosa lindleyana in male Wistar rats.

L.Vijayendran, S.M.D.N. Wichramasinghe (Eastern University, Sri Lanka, 2000)

Aporosa lindleyana is a green leafy vegetable of family Euphorbiaceae grown in tropical countries. In this study the effect of Aporosa lindleyana on the serum cholesterol level of hypercholesterolaemic rats and ...
Projective and part metric techniques in proving the existence of unique positive solutions for non-linear integral equations.

T.Sritharan (Eastern University, Sri Lanka, 2000)

We will present the existence and uniqueness of a non-negative solution of non- linear integral equations of the type u(x) — f^K(x,y) F(y,u(y)} dy, where O is a closed and bounded domain in JJ^, K(., .) is non-negative and ...
Separation techniques of flabelliferins from palmyrah (Borassus flabellifer L.) fruit pulp

D.D Ariyasena, A.M Abeysekera; E.R.Jansz, J.K.Nikawala, (Eastern University, Sri Lanka, 2000)

The flabelliferins (steroidal saponins) ofpalmyrah are of importance due to their significance in foodand bio activity. There are a plethora of flabelliferins and their separation and quantification is a challenge. This ...
Lequme-fish integration: Cultivation of soybean and bush bean under saturated soil condition with blue gourami.

Udani Edirisinghe, L.J.P.D Jayasooriya; K.G. Nandasena (Eastern University, Sri Lanka, 2000)

Benefits of an integrated culture of expensive ornamental fish species with economically important legume crops in rotation with rice could be accrued by farmers at low profit margins. Possibility of developing such an ...
Comparison of analytical techniques for separation of n-linked oligosaccharides in a model glycoprotein (Ribonuclease B)

U.G. Chandrika, G.E. Norris (Eastern University, Sri Lanka, 2000)

Methods for separating oligosaccharides have always been limited by the detection system utilised. Carbohydrates do not naturally contain any chromophores or flourophores and therefore un-derivatised glycans cannot be ...
Analytical studies on irrigation water at Kaluthawalai in the Batticaloa district.

K.Vaheesar, Thevaki Mahendran; H.M.D Namal Priyantha (Eastern University, Sri Lanka, 2000)

An analytical study was carried to determine the suitability of ground water for irrigation. Chemical analysis of sodium, calcium and magnesium were carried out and electrical conductivity was measured during December 1998 ...
Investigation of the free steroid from palmyrah (Borassus flabellifer L.) fruit pulp

J.K.Nikawala, P.Baeckstrom,; E.R.Jansz, A.M.Abeysekera (Eastern University, Sri Lanka, 2000)

The study describes the isolation of a Steroid from, palmyrah fruit pulp(PFP) by MPLC. Spectroscopic studies using 1H-NMR and 13C-NMR showed its structure to be (3 SitosteroL The steroid was isolated from PFP by extracting ...
Preparation and resistance measurements of BSCCO superconductors.

Ganesan, N.Pathmanathan,; J.C.N.Rajendra, B.S.B.Karunaratna. (Eastern University, Sri Lanka, 2000)

Three Bismuth based superconducting samples with the composition.rPbQ.sSrCaCui.sOy were prepared using different solid state reaction techniques. The BiiOz* P6O, SrCOz and CuO powders o/99% purity were used as starting raw ...
Glutathione is an essential metabolite required for resistance to oxidative stress and induction of stress tolerance in yeast Saccharomyces cerevisias

S.Judy Arasanila, Kenneth Watson (Eastern University, Sri Lanka, 2000)

Yeast cells were depleted of glutathione by treatment with iodoacetamide and were markedly more sensitive to damage caused by free radicals generated by AAPH (2,2 f-azobis(2-amidinopropane) dihydrochloride) and H^Oi- However ...
Effect of Canavalia gladiata seed meal on impregnated ICR mice

Sagarika Ekanayake, E.R. Jansz; Sharmini Jeysekar (Eastern University, Sri Lanka, 2001)

he effect of raw Canavalia gladiata (sword bean; awara - Sinhala; avarai - Tamil) whole seed meal on impregnated ICR (Institute of Cancer Research) mice was tested since it is believed that consumption of this variety of ...
AC magnetic susceptibility measurements of Bi (Pb) – Sr – Ca- Cu- O superconductor in DC magnetic fields

N. Pathmanathan, A.L. Thomas (Eastern University, Sri Lanka, 2001)

In this work a Bi based superconductor with the composition Bii.e -Pfeo.4 Srz Cai Cus Oy was prepared using sol-gel method and AC Magnetic Susceptibility measurements \'(T) and x"(T) were carried out on the sample in the ...
Fermentation rates and efficiency of fruit pulps from palmyrah containing different flabelliferin profiles

Dilupi P Vendebona, Errol R.Jansz,; S.Chandrani Wijeyaratne, Nalaka Ileperum (Eastern University, Sri Lanka, 2001)

The potential use of Palmyrah (Borassus flabellifer L.) fruit pulp (PFP) which is largely a waste owing to its bitterness, was studied for alcoholic fermentation. The rate and efficiency of alcoholic fermentation of eight ...
Night human biting mosquitoes during the northeast monsoon in Batticaloa (dry zone) of Sri Lanka

K.Sujarahini, Manthri Ramasamy; Meena Dharmaretnam (Eastern University, Sri Lanka, 2001)

We report for the first time species of mosquitoes from the east coast (dry zone) of Sri Lanka. The study was done in an urban and a rural site during the monsoonal period of October 1993 to January 1994- There was a ...
Environmental impact of Valaichchenai paper mills effluen

Nanthini Selvadurai, S.T.Senthilmohan (Eastern University, Sri Lanka, 2001)

The paper mill situated at Valaichchenai in the Eastern province provides most of Sri Lanka's requirement of paper. A general opinion among the public is that, the effluent from the Valaichchenai paper mill pollutes the ...
A novel synthetic method for fungal melanin biosynthesis intermediate, 1, 3, 6, 8-tetrahydroxynapthalene

M.K.B. Weerasooriya, E.Bardshiri (Eastern University, Sri Lanka, 2001)

A novel route was designed to synthesize 1,3,6,8-Tetrahydroxynaphthalene (T4HN), an intermediate of fungal melanin biosynthesis, using 3,5-dimethoxybenzoic acid as the starting material. The method is efficient and more ...
Nitrate and fluoride content in ground water in the Batticaloa district

K.Vaheesar (Eastern University, Sri Lanka, 2001)

A preliminary investigation was done to determine the nitrate and the fluoride content in ground water in the Batticaloa district. Thirty-three wells have been selected from eight Divisional Secretary (DS) areas in this ...
The diversity of resident birds in the campus of the University of Peradeniya, Sri Lanka

Chaminda Wijesundara, Charles Santiapillai (Eastern University, Sri Lanka, 2001)

The Peradeniya University Campus (80 ° 36 ' E, 7 ° 15 ' N) represents one of the areas rich in bird life, both in number and species. Of the 233 species of resident birds known from Sri Lanka, 83 have been recorded from ...
Collision handling of Polyhedral Objects-A survey

S.Kanaganathan (Eastern University, Sri Lanka, 2003)

A survey of collision detection and collision response algorithms in Virtual Reality environment is given. Data structure to represent objects in Virtual Reality environment are also discussed. A parallel implementation ...
Ranging pattern, feeding and time budget of langurs (semnopithecus entellus) in a recently established home range at Eastern University Campus, Batticaloa, Sri Lanka

Riyas Ahamed, Meena Dharmaaretnam (Eastern University, Sri Lanka, 2003)

Ranging pattern, feeding activity and time budget were studied in a troop of langurs in the Eastern University campus. Locations, feeding preference and activities of members of the troop were recorded for a period of five ...
Effect of burial depth and cultural practices on nutlets emergence and viability of cyperus Rotundus L. under up land conditions in the dry zone, Sri Lanka

S. Rajadurai (Eastern University, Sri Lanka, 2003)

Cyperus rotundus known a,s purple nutsedge is identified as one of the problem weeds. The underground nutlets in the soil bank are the propagules. Vigorous nutlets are capable of emerging from deep soil profile of 30 cm. ...

Browsing JSc - Journal of Science by Issue Date

Browsing JSc - Journal of Science by Issue Date

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