Summary Polio immunization has faced challenges of refusal from care givers in recent times despite the efforts put in to ensure its success. To identify the role of service providers in this attitudinal shift, a survey describing the perception of health workers about the supplemental immun ization activities was carried out among 265 health workers who participated in the 3rd round of the 2003 sub-national immunization days in Gombe local government area (LGA) of Gombe state, Nigeria: Data...
Abstract Nature has inspired many optimization technique/methods. This paper is directed to introduce some of these methods to the reader and emphasis was laid on the Ant algorithm by discussing its properties and what it entails. Also some of the problems that Ant algorithm has been used to solve was listed while two of them were discussed in fully. The TSP which the writer worked on and Network routing.