• The Types, Morphology and Population Patterns of Metazoan Parasites of Amblygaster clupeoides in Sri Lanka 

  Piyasiri, Swarna; Wijesinghe, Sujatha L.A. (1989)

  The present investigation is a survey of endo- and ecto-parasites of the marine fish Amblygaster clupeoides, Gal Hurulla, from Trincomalee. The scope of the survey is to record the types of parasites found in A. clupeoides, ...
• Stable Ultra-fast High Power CO2 Laser Pulse Generation 

  Perera, I.K. (1989)

  Some possible approaches towards the generation of ultra-fast infra - red COI laser pulses are discussed. Of these the technique of injection modelocking in particular, which has been applied to a wide range of CO2 ...
• Effects of Atropine on Fertility of Male Rats 

  Ratnasooriya, W.D. (1989)

  Insertion of silastic rods containing 25% and 50% atropine adjacent to the epididymis of rats produced a significant suppression in fertility which was temporary with the lower dose and permanent with the higher dose. Both ...
• Effect of Two Methods of Sampling on the Oothecal Parasites of Periplaneta americana (L.) 

  Kumarasinghe, N.C.; Edirisinghe, J.P. (1989)

  Empty and live oothecae of P. americana found in houses were separately sampled to determine natural parasitism levels of the two oothecal parasites E. appendigaster and T. hagenowii. When a quarter of the live oothecae ...
• Effect of Gluten Addition to Rice Flour in Developing a New Rice Flour Bread 

  Rajapakse, D.; Gunatileke, K.G.; Bamunuarachchi, A. (1989)

  It was observed that the minimum quantity of vital wheat gluten required to mix with rice flour in bread making to be 20 %. Studies on the chemical composition of this bread showed higher moisture and protein levels than ...
• Contents 

  Unknown author (1989)
• Blood respiratory parameters in three species of cultivated fish 

  Amarasinghe, I.C.; Attygalle, M.V.E. (1989)

  The study was oarried out on three species of fish which are commercially important and presently cultivated in Sri Lanka. These are Oreochromis mossambicus, Oreochromis niloticus and Chanos chanos. Blood parameters measured ...
• A Genetic Study of Two Sex-linked Recessive Mutants, Marginal Cell Less (MCL) Wing Cut (CT) Wing of Drosophila ananassae 

  De Silva, B.G.D.N.K. (1989)

  The present study was made in order to carry out further genetic investigations of two mutants ct wing and mcl wing isolated by Bogabawatta in 1982. These two mutants were observed to be recessive and sex-linked, but ...

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