Critical Path method (CPM) is widely used in project scheduling and controlling. In conventional project scheduling problem, the crisp numbers are used for the activity times. But in reality, in an imprecise and uncertain environment, it is an unrealistic assumption. To represent the uncertainty involved we have considered the interval-valued numbers to represent the activity times. In this pap...

In this paper Algorithm is presented to perform critical path method in a fuzzy environment. The trapezoidal fuzzy number given by decision makers or characterized by historical data are utilized to assess the activity time in a project network. The fuzzy shortest path problem thus obtained is compared with conventional method.

Several protocols have been proposed to synchronize the logical processes (LP’s) of a parallel discrete event simulation (PDES). While most protocols have been known to perform well under certain conditions, the general observation has been that the performance of protocols is sensitive to the application being simulated, sometimes even to a particular instance of it. In this technical note, we...

Critical sections are well known potential performance bottlenecks in multithreaded applications and identifying the ones that inhibit scalability are important for performance optimizations. While previous approaches use idle time as a key measure, we show such a measure is not reliable. The reason is that idleness does not necessarily mean the critical section is on the critical path. We intr...

Burgeoning concerns regarding patient safety, variable health care quality and increasing health care costs have led to the introduction of clinical management tools that have their origins outside of the traditional health care sector. Primary among these innovations has been the implementation of critical pathways, administrative models that streamline work and production processes. Critical ...

programmed cell death, which can be classified into apoptosis, autophagy, and oncosis, based on the cellular signalling pathways involved in the process, plays a critical role in cellular house-keeping. aberrant cell death regulation leads to body malformations, as well as to numerous diseases. here, we describe the effects of cytototoxins isolated from marine organisms on the various programme...