THE DESIGN AND ANALYSIS OF EXPERIMENTS. By Oscar Kempthorne. New York, John Wiley and Sons, Inc., 1952. 631 pp. $8.50. This book by a teacher of statistics (as well as a consultant for \"experimenters\") is a comprehensive study of the philosophical background for the statistical design of experiment. It is necessary to have some facility with algebraic notation and manipulation to be able to use the volume intelligently. The problems are presented from the theoretical point of view, without such practical examples as would be helpful for those not acquainted with mathematics. The mathematical justification for the techniques is given. As a somewhat advanced treatment of the design and analysis of experiments, this volume will be interesting and helpful for many who approach statistics theoretically as well as practically. With emphasis on the \"why,\" and with description given broadly, the author relates the subject matter to the general theory of statistics and to the general problem of experimental inference. MARGARET J. ROBERTSON

The Design and Analysis of Experiments

Assay for lipid peroxides in animal tissues by thiobarbituric acid reaction

The role of probiotics in aquaculture

Cr(VI) and Cr(III) removal from aqueous solution by raw and modified lignocellulosic materials: a review.

http://www.ssu.ac.ir/fileadmin/templates/fa/daneshkadaha/daneshkadah_pezeshki/goroha/rhienonogy/probiotics/artigo2.pdf

Probiotics in aquaculture: The need, principles and mechanisms of action and screening processes

Nitrifying Bioreactors Integrated into Shrimp and Prawn Hatchery Systems: Molecular Characterization of the Nitrifying Consortia,Reactor Kinetics, Modeling and Validation

Coir pith is a polyphenol containing agroindustrial residue which causes land and water pollution. Research programs are advancing by utilising coir pith as a substrate for bio energy production, and oxidative delignificationwas reported as an effective pretreatmentmethod. Oxidative delignification process generates highly coloured ÂÂCoir pith Black LiquorÂÂ (CBL) as effluent and its release to open environment poses pollution risks. Evaluation of toxicity of CBL is of significance for its safe disposal plans. In the present study, we investigated the phytotoxicity of CBL to a standard test species Oryza sativa. A 96 hour bioassay was conducted. Root length, shoot length, seed germination, Germination Index (GI), Seed Vigor Index (SVI) and Shoot toRoot ratio (S:R)were the parameters studied. Data acquisition was done with the help of image analysis software ÂÂFijiÂÂ. Statistical analysis was carried out using ÂÂRÂÂ software. The EC50 (Median Effective Concentration), the concentration at which 50% reduction in growth, compared to control, occurred was calculated for each parameter. The EC50s were converted into Toxic Units (TU) for comparison. All parameters studied were significantly affected by the CBL. The study revealed that CBL was acutely toxic to Oryza sativa. Root length and Germination Index (GI) were the most sensitive endpoints (TUs = 8.9 and 8.8 respectively) whereas seed germinationwas the least sensitive endpoint (TU = 1.73). Based on sensitivity, the parameters were arranged as : Root length=GI>Seedling length=SVI>Shoot length>Germination. The results points towards the necessity of further characterization of toxicants present in the CBL and treatment procedures to eliminate the toxicity.

I. S. Bright Singh

Papers

Nitrifying Bioreactors Integrated into Shrimp and Prawn Hatchery Systems: Molecular Characterization of the Nitrifying Consortia,Reactor Kinetics, Modeling and Validation

Evaluation of phytotoxicity of coir pith black liquor generated by oxidative delignification process to Oryza sativa L

Bioprocess optimization and characterization of phytase from an environmental isolate bacillus mccb 242

Development of cell culture systems from selected species of fish and prawns

Novel Cellulases through culture-dependent and metagenomics based approaches: Discovery and Characterization