Volume 31 (2020)
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Volume 1 (1989)
1. Potentiometric Determination of Acidity Constants of Some Synthesized Organic Compounds in Organic-Water Media

Sh. Baluja; P. Ramavat; K. Nandha

Volume 27, Issue 4 , Autumn 2016, , Pages 321-328

Abstract
  The acidity constants of some synthesized protonated pyrazolo quinazoline compounds were determined potentiometrically at ionic strength of 0.1 M in DMF: water (60:40 v/v) system at different temperatures (298.15 K to 318.15 K). The pKa values have been found to increase with increasing electron-donating ...  Read More

2. Entropy Estimate for Maps on Forests

M. Sabbaghan

Volume 21, Issue 1 , Winter 2010

Abstract
  A 1993 result of J. Llibre, and M. Misiurewicz, (Theorem A [5]), states that if a continuous map f of a graph into itself has an s-horseshoe, then the topological entropy of f is greater than or equal to logs, that is h( f ) ? logs. Also a 1980 result of L.S. Block, J. Guckenheimer, M. Misiurewicz and ...  Read More