it is well known that in operations research‎, ‎degeneracy can cause a cycle in a network‎ ‎simplex algorithm which can be prevented by maintaining strong‎ ‎feasible bases in each pivot‎. ‎also‎, ‎in a network consists of n arcs‎ ‎and m nodes‎, ‎not considering any new conditions on the entering‎ ‎variable‎, ‎the upper bound of consecutive degenerate pivots is equal‎ $left( ‎begin{array}{c}‎ ‎n...

Communicative competence and awareness of communicative strategies are vital factors in EFL learning. Due to their importance, this study aimed investigate the used by teachers learners. To end, 10 were randomly selected. One hundred fifty learners attending these classes also subjected study. The utterances produced participants recorded, transcribed, coded based on Dornyei’s taxonomy (1995). ...