Earthquake is one of disaster that when happened causes many problems in economic and society in Iran, so earthquake disaster management is necessary for decreasing these problem effects. Because of most related data with earthquake and its effects have spatial properties, so GIS can be used as effective tool for managing and decision making in disaster. In some countries such as Iran, disaster...

In this article we generalize the notion of complete parts, by introducing a weaker condition in definition. Using this generalization we define and analyse a new class of semihypergroups, which are called weak complete semihypergroups. Complete parts were introduced about 40 years ago by M. Koskas and they represent a basic notion of hyperstucture theory, utilized in constructing an important ...

in this note first we define the notions of fuzzy positive implicativehyper bck-ideals of types 1,2,3 and 4. then we prove some theorems whichcharacterize the above notions according to the level subsets. also we obtainthe relationships among these notions, fuzzy (strong, weak, reflexive) hyperbck-ideals and fuzzy positive implicative hyper bck-ideals of types 5,6,7and 8. then, we define the no...

Pediatric disaster preparedness implies that systems are in place to ensure the rapid triage and emergency management of children as patients in a natural, manmade, or terrorist-initiated disaster. Children are a vulnerable population for a number of reasons that include anatomic, physiologic, immunologic, developmental and psychologic issues that are important for planning for the care of chil...