the square map is one of the functions used in cryptography. for instance, the square map is used in rabin encryption scheme, block cipher rc6 and stream cipher rabbit, in different forms. in this paper, we study statistical properties of the output of the square map as a vectorial boolean function. we obtain the joint probability distribution of arbitrary number of the upper and the lower bits...

The ever dynamic nature of the world of work requires that organisations constantly review factors that energise managers (particularly middle level managers) towards achievement of set goals. This category of employees translates strategic decisions by top management into action through the operational employees. They (middle level managers) therefore serve as a link between top management and...

OBJECTIVE: The aim of this study to evaluate the incidence and localization of facial nerve dehiscence in patients undergoing middle ear surgery. MATERIALS AND METHODS: A retrospective study done at our ENT center consists of 103 patients undergoing various middle ear surgery. The patients who have been operated in our ENT center for middle ear problems in last 3 years were enrolled for the stu...

The water quality of the Karaj River was studied through collecting 2137 experimental data set gained by 20 sampling stations. The data included different parameters such as T (temperature), pH, NTU (turbidity), hardness, TDS (total dissolved solids), EC (electrical conductivity) and basic anion, cation concentrations. In this study a multi-layer perceptron artificial neural network model was d...