this method is based on assigning some weghing values for natural, cultural, and recreational resources of a site for national parks. numerical value are used to determine whether a particular area is suitable for the of national parks. delfi technique is also employed to reduce the subjectivity as well as, bias in site selection, criteria used in parts of the world for this p~ are the basis of...

Between 1960 and 1998, bears caused 42 serious or fatal human injuries in the Province of Alberta—29 (69%) by grizzly (brown) bears (Ursus arctos) and 13 (31%) by American black bears (U. americanus). Considering Alberta’s estimated bear population—about 1,000 grizzly bears and 38,000–39,000 black bears—these numbers suggest that the grizzly bears are the more dangerous of the 2 species. Seriou...

he people of the USA love their national parks. Approximately 300 million visits were recorded at national parks in 2000, the vast majority being domestic visitors. The love affair between U.S. citizens and national parks is so intense, in fact, that it is often stated that the parks are “being loved to death.” Of the many challenges facing the National Park Service (NPS) in the 21st century, e...

Background: Accidents caused by children’s play equipment are a severe health threat to them. Implementing the requirements of the safety standards is necessary to ensure the safety of such equipment. The current study aimed to determine the general safety of playground equipment in general parks in Gonabad City, Iran. We also compared the level of the general safety of this equipment with nati...