This study proposes that the entropy function provides a simple and useful tool for project managers to better cope with project uncertainty, and therefore better manage projects. The entropy function has a long and established history as a measure of uncertainty in information theory. If selected activities on PERT networks are modified by reducing their activity times by one or more time unit...

The classical PERT approach uses the path with the largest expected duration as the critical path to estimate the probability of completing a network by a given deadline. However, in general, such a path is not the most critical path (MCP) and does not have the smallest estimate for the probability of completion time. The main idea of this paper is derived from the domination structure between ...

The traditional PERT (Program Evaluation and Review Technique) model uses beta distribution as the distribution of activity duration and estimates the mean and the variance of activity duration using “pessimistic”, “most likely” and “optimistic” time estimates proposed by an expert. In the past several authors have modified the original PERT estimators to improve the accuracy. In this paper, on...

background: accurate and complete documentation of nursing records is one of the preconditions of the evidence-based cares and is considered as one of the most important professional tasks in nursing. the aim of the present study was to audit the nursing reports in intubated neonates admitted in neonatal intensive care unit of ayatollah rouhani hospital, babol. methods: in this cross-sectional ...

since there are concerns about spread of mycological infection in the society and in order to determine the epidemiology and risk factor for such infections among primary school students in tehran, a research project was proposed to dean of research affairs of shaheed beheshti medical university and 4 medical students undertook to work on the subject as their thesis project. the project was acc...

this paper is to develop a knowledge management (km) model in some iranian academic research centers (arc) based on km critical success factors. general km critical success factors (csf) were identified through literature review. then the research procedure led to the identification of km critical success factors in iranian arcs including 16 different factors. it was done through first stage su...