Background: Since 2002, the definition of intellectual disability was revised about 10 times. American association of intellectual developmental disabilities (2007) replaced the term of mental retardation with intellectual disability. However, in diagnostic and statistical manual of mental disorders 4th revision the term of mental retardation was used. Therefore, both of them use in Persian and...

‏‎‏‎utopia has, for four centuries, accompanied that hope of progress and that striving for betterment. it now straggles against a widespread sense that this has been an illusion, or an impossible dream. the utopian idea can never entirely disappear, but utopia as a form of the social imagination has clearly weakened. if it cannot instill its vision in the public consciousness, the consequences...

employees always concern about losing their job , or in other word , losing their income resources. for this purpose, every government requires strong system for covering these concerns. the unemployment insurance (ui) program’s can be used for achieving this goal. in this thesis, we price ui based on the insurance history of employee and the duration of being unemployed. we use the weibull dis...

In recent decades, the protection of traditional medicine under the intellectual property system has been the subject of many efforts that was made by international community and especially less developed countries which are rich in this field. Since this knowledge has the unique characteristics and other current legal systems of intellectual property can not protect all aspects of it, the worl...

It is often thought that appropriation art doesn’t give rise to its traditional concept and place. Because there are secondary works in the world of visual arts that are taken from the original works. From a legal point of view despite their uniqueness, definite and certain material existence of these works, the situa­tion of the author is not very clear. “How can be explained the authorship re...