abstract there is not much sources about ancient carnival and ceremonies , but some information can be gain from documents . as a matter of fact the ceremonies were a part of zarartiyan principles which zartosht had taken them to his religion . it should be mentioned that the oldest ceremonies are about poster and agriculture principles this seasonal ceremonies were very important for agri...

in this thesis, first the notion of weak mutual associativity (w.m.a.) and the necessary and sufficient condition for a $(l,gamma)$-associated hypersemigroup $(h, ast)$ derived from some family of $lesssim$-preordered semigroups to be a hypergroup, are given. second, by proving the fact that the concrete categories, semihypergroups and hypergroups have not free objects we will introduce t...

Safavid era is a glorious period in the history of Iranian urbanization and architecture in which the gardens and palaces constructed in the mentioned era have been architecturally very important and their remains such as Naqsh-e Jahan Square, Hashtbehesht garden and palace, Chehelsotoon palace, etc. have been valuable works in the city texture. However some ruined palaces in Isfahan are su...

like any other learning activity, translation is a problem solving activity which involves executing parallel cognitive processes. the ability to think about these higher processes, plan, organize, monitor and evaluate the most influential executive cognitive processes is what flavell (1975) called “metacognition” which encompasses raising awareness of mental processes as well as using effectiv...

Changes in a river's geomorphologic pattern would be considered in all environmental plannings because this change has special consequences on land ownership properties, the use of cultivable lands on rivers' banks and supply of constructional materials. Sand and gravelmining of the river beds are among factors that lead to changes in river bed patterns. In this research, we investigate geomorp...

insurers have in the past few decades faced longevity risks - the risk that annuitants survive more than expected - and therefore need a new approach to manage this new risk. in this dissertation we survey methods that hedge longevity risks. these methods use securitization to manage risk, so using modern financial and insurance pricing models, especially wang transform and actuarial concepts, ...