The isolation and characterization of microorganisms involved in the degradation of sawdust waste in Rivers State was carried out. The sawdust waste samples were collected from various locations in Rivers State. The media used were nutrient agar for total

In large organizations the flow of individuals between the various ranks is a task which requires careful and detailed monitoring. Here to consider only single graded organization. The recruitment can be made by the organization itself or by some external agencies to avoid delay and huge overhead cost. The expected time to recruitment in the organization is obtained using shock model approach, assuming that the threshold follows gamma distribution. Numerical illustrations are provided for a better understanding of the model.