indirect plate enzyme-linked immunosorbent assay was standardized and evaluated for its effectivenessin immunodiagnosis of haemonchosis in experimental and clinical cases in sheep by using somatic wholeadult antigen of h. contortus. plate elisa was standardized using 5 μg/well antigen concentration with1:100 and 1:1000 of sera and conjugate dilution. indirect plate elisa was able to demonstrate...

Copper smelting slags are hard materials. Therefore,to recover their copper by flotation method, grinding should be carried out to obtain optimal particle size. Copper smelting slags in the Bardeskan district, with work index of 16.24 kwh/st, were grinded for 65 minutes to reach an acceptable degree of freedom for the flotation tests, with particle size of 80%, smaller than 70 μm. With this gri...

Mouse spleen lymphoblasts, stimulated to divide in vitro, acquired a low cell density and could be separated by isopycnic techniques. Cultured cells were suspended in BPA columns, rho = 1.080, and spun to equilibrium. The method was simple, fast, accomodated large numbers of cells, and was reproducible. It provided lymphoblasts in high yield and purity (at least 80% of the low density cells wer...

Beaches are good indicators for local microplastic distribution and pollution. Multiple methods have been developed extracting microplastics from sediment through density separation. However, the chemicals applied often expensive harmful to user or environment. We briefly review problems associated with use of these present a new floatation medium, potassium carbonate (K 2 CO 3 ), that has many...

Physical and biological treatment technology are considered a highly feasible economic way to treat slaughterhouse wastewater. To achieve the desired effluent quality for disposal or reuse, various technological options were reviewed. However, most practical operations accompanied by several advantages disadvantages. Nevertheless, due presence of biodegradable organic matter in waste, anaerobic...