An experimental investigation on growth stimulation (+) and inhibition (-) of algae (oscillatoria.chlorina and scenedesmus.quadricauda) treated with pulp and paper mill effluents.

The growth stimulation (+) and inhibition (-) of algae treated with pulp and paper mill effluent was investigated in laboratory culture condition. The result revealed that the effect of paper mill effluent on algae was species specific. Effluents were stimulatory as well as inhibitory to the growth of test algae . Oscillatoria chlorina tolerated higher concentration where as Scenedesmus quadricauda tolerated lower concentration of effluent. At 100% effluent concentration growth was retarded and inhibition was the result. During investigation significant algal growth was observed between concentration and treatment days of which 21 days incubation period was considered as final yield.

Biochemical Markers of Myocardial Injury during Coronary Artery Bypass Grafting with and without Cardiopulmonary Bypass.

Minimally invasive cardiac surgical techniques have been applied recently in the management of variety of cardiac lesions. Between December 1998 and February 1999, fifty patients underwent coronary artery bypass grafting (CABG) under two different techniques. In group A (twenty five patients), CABG was done under cardiopulmonary bypass (CPB) and in group B (twenty three patients), CABG was performed on a 'beating heart' without CPB. Serum concentration of cardiac specific enzymes CPZ-MB and Troponin-T were estimated in all the patients from pre-induction period to 72 hours after the bypass graft. Group A patients exhibited a significant (P<0.05) elevation in the CPK-MB and Troponin-T level as compared to group B. Our results show that the extent of myocardial damage following CABG is significantly less when the procedure is done on a 'beating heart'.