The Editor in Chief has retracted this paper because of significant overlaps with a previously published article by different authors [1]. Specifically, Figures 1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 13, 14, and 17 and all the tables overlap with those in [1], as does the list of references from 1 to 74.

V. Viswanatha disagrees with this retraction. A. C. Ramachandra and R. Venkata Siva Reddy have not responded to any correspondence from the editor about this retraction.

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