In finding all solutions to a constraint satisfaction problem, or proving that there are none, with a search algorithm that backtracks chronologically and forms k-way branches, the order in which the values are assigned is immaterial. However, we show that if the values of a variable are assigned instead via a sequence of binary choice points, and the removal of the value just tried from the do...

The family is the vital source of peace and comfort, love and intimacy. But the family can also be a place of conflict, difference, gap and distance in terms of values ​​and patterns of behavior between children and parents. Virtual social networks are a new generation of social networking space that at the end of the first decade of the 21st century have changed the ways of communic...

Developing countries have embarked on the promotion of “ICT access for all” through subsidized Information and Communication Technologies (ICTs), especially in underserviced areas of such countries. The main aim of the “ICT access for all” is to extend the communication services to the large areas of underserviced regions through subsidized communication services. In some instances, subsidies m...