Background: Shift work can cause problems for workers’ health, especially nurses. This study was done to assess the problems caused by shift work and the nature of the job in nurses of the educational hospitals of Kerman University of Medical Sciences, Iran. Materials and Methods: This was a descriptive study carried out in 2013. The research participants were 159 nurses with and without...

zno nanorods and nanoparticles have been easily prepared via the decomposition of two simple schiff base zinc (ii) complexes, namely (n,n'–disalicylalethylenediamine)zince(ii) and (n,n'–disalicylalphenylenediamine)zince(ii) under microwave irradiation. the decomposition products of the complexes were characterized by ft-ir, xrd, sem, edx and uv-visible spectroscopy.  ft-ir, xrd and edx results ...

A k-ary de Bruijn sequence of order n is a cyclic sequence of length k in which each k-ary string of length n appears exactly once as a substring. A shift rule for a de Bruijn sequence of order n is a function that maps each length n substring to the next length n substring in the sequence. We present the first known shift rule for k-ary de Bruijn sequences that runs in O(1)-amortized time per ...

An arithmetic or with-carry analog of Blahut’s theorem is presented. This relates the length of the smallest feedback with carry shift register to the number of nonzero classical Fourier coefficients of a periodic binary sequence.