In this paper we propose an algorithm for computing large primes p and q such that q divides p + p + p + p + p + p + 1 or p − p + p − p + p − p + 1. Such primes are the key parameters for the cryptosystem based on the 7th order characteristic sequences.

evaluation of periodontal status by cpitn among (35-44) – year – old population in khoramabad (2002) dr. f. haghighati* - dr. sh. salehi** - dr. r. valizadeh*** * - associate professor of periodontics dept. - faculty of dentistry – tehran university of medical sciences. **-assistant professor of periodontics dept. - faculty of dentistry – tehran university of medical sciences. ***- dentist. bac...

the effect of applying cold gel pack on the anxiety of sternal incision associated with deep breathing and coughing in cardiac surgery patients    khalkhali hr [1] , ebrahimi rigi z [2] , feizi a * [3] , salehi sh [4] , salmanzadeh hr [5] , bazdar p [6]     received: 26 feb, 2013 accepted: 13 may, 2013    abstract  background & aims : coughing & deep breathing after sternotomy is along with hig...

in this paper, we introduce $p$-semilinear transformations for linear algebras over a field ${bf f}$ of positive characteristic $p$, discuss initially the elementary properties of $p$-semilinear transformations, make use of it to give some characterizations of linear algebras over a field ${bf f}$ of positive characteristic $p$. moreover, we find a one-to-one correspondence between $p$-semiline...