Browsing by Author "Wimalasiri, W.R."
Now showing 1 - 14 of 14
- Results Per Page
- Sort Options
Item A novel cyperane acid from Croton aromaticus Euphorbiaceae(1987) Bandara, B.M.R.; Wimalasiri, W.R.Item A novel diterpenoid from Croton officinalis (Euphorbiaceae)(1987) Bandara, B.M.R.; Wimalasiri, W.R.Item Antimicrobial activity of some marine algae of Sri Lanka(National Science Council:Colombo, 1988) Ratnayake Bandara, B.M.; Gunatilake, A.A.L.; Savitrikumar, N.; Wimalasiri, W.R.Item Bioavailability of dietary zinc and its relationship to phytate, tannin and calcium concentrations(1994) Wimalasiri, W.R.; Perera, P.A.J.Item The bioavailability of trace elements in foods of Sri Lanka(Natural Resources Energy Science Authority of Sri Lanka:Colombo, 1995) Wimalasiri, W.R.Item Chemotaxonomic studies of Croton species in Sri Lanka(National Science Council:Colombo, 1988) Ratnayake, B.M.; Wimalasiri, W.R.; Balasubramaniam, S.Item Dental fluorosis and caries incidence in rural children residing in a high fluoride area in the dry zone of Sri Lanka(University of Colombo. Colombo, 1999) Nanayakkara, D.; Chandrasekera, M.; Wimalasiri, W.R.A study was conducted to establish the prevalence and severity of dental fluorosis and to investigate its relationship to dental caries in 222. , 12-14 year old children who have been life long residents in a rual area in teh dry zone of Sri Lanka where the drinking water contains a above optimal fluoride concentration. Dental fluorosis was assessed using the WHO criteia. Samples of water used for drinking by them were analysed for fluoride levels. The results revealed that 97precent of the children were affected with dental fluorosis. While about 20per cent had extensive fluorosis (scores of 3 and 4). Fluoride levels int he drinking water samples varied from 0.21-9.8ppm. Higher fluorosis scores were observed in children drinking water with higher fluoride content. The prevalence of caries increased as the degree of cluorosis increased. The mean DMFT was 0.43 in children showing no foluorosis but increased up to 1.65 in children showing a fluorosis score of 3.Item Fingitoxic and insecticidal properties of three Croton species Euphorbiaceae(1987) Bandara, B.M.R.; Wimalasiri, W.R.; Adikaram, N.K.B.; Balasubramaniam, S.; Ranasinghe, M.A.S.K.; Bandara, K.A.N.P.Item Insecticidal constituentes of croton Lacciferus (Euphorbiaceae)(1987) Bandara, B.M.R.; Wimalasiri, W.R.; Bandara, K.A.N.P.Item Iron, zinc and copper contents in foods of Sri Lanka(1994) Wimalasiri, W.R.Item Separation and estimation of pro-vitamin A carotenoids from common green leafy vegetables in Sri Lanka(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 1993) Ratnayake, R.M.S.; Wimalasiri, W.R.; Perera, P.A.J.; Weligama, K.N.H.Item Study of total glucose and cholesterol in the serum collected from patients with moderate to severe adult periodontitis(1999) Galhena, B.P.; Ruwanpura, S.M.P.M.; Wimalasiri, W.R.; Chandrasekera, A.Item The bioavailability of dietary iron, copper and zinc and its relationship to the phytate, tannin and calcium concentrationNiroshana, C.; Wimalasiri, W.R.