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Item Anthropometric measurements of Sri Lankan newborns(University of Colombo. Colombo, 1998) Nanayakkara, D.A study was conducted with the aim of establishing the mean birth weight, crown heel length and head circumference for Sri Lankan newborns. A total of 1325 normal, singleton babies (993 sinhalese and 332 moor) with ultrasonically confirmed period of gestation, born at the Maternity unit of the Base hospital Kegalle, were selected. Means and standard deviations for the above measurements of the sinhalese and moor babies were established. Since the number of babies were established. Since the number of babies belonging to the Tamil ethnic group was small for statistical analysis. they were excluded from the study. For all three measurements, the mean values of male newborns were higher than those of the female newborns. when compared with the sinhalese the moor, males and females had highly significant higher values for birth weight crown heel length and head circumfereence (P0.001) simple linear regression analyses were carried out between the baby's weight age and parity. A significant relationship was observed between the baby's weight and mothers weight.Item Brain death confirmed by Tc 99m DTPA scan in a case of subarachnoid haemorrhage following a krait bite(Elsevier. New Delhi, 2005) Balasuriya, B.M.A.C.; Nanayakkara, D.; Goonesekara, C.D.A.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 Assessment of submergence stress responses and mining allelic variations of submergence tolerance gene Sub1A in Sri Lankan rice germplasm(NSF:Colombo, 2023-03) Kariyawasam, T.; Nanayakkara, D.; Sumanarathna, A.; Weerasinghe, D.; Suriyagoda, L.; Jayatilake, D.Item Craniofacial anthropometry of Sri Lankans(University of Colombo. Colombo, 1998) Nanayakkara, D.The data available on craniofacial anthropometry of Sri Lankans are very scanty. These measurements are an important consideration to the clinician and the anthropologist. A total of 8409 children , 3954 males and 4450 females in the age range of 6-18 years, belonging tot eh three major ethnic groups in Sri Lanka. Moors were examined with the aim of establishing the normal values for a series of seven craniofacial measurements obtained using holtain anthropometric instruments. Norms were established for 1 year age categories from 6-18 years. for males and females in the three ethnic groups. The singhlese males and females showed higher values for head circumference head breadth and bicondylar breadth than the Sri Lankan tamils and moors, differences which were statistically significant (p0.001) the facial height of the Sri Lankan moors were significatly greater that of the sinhalese and Sri Lankan tamils.