the main objective in sampling is to select a sample from a population in order to estimate some unknown population parameter, usually a total or a mean of some interesting variable. a simple way to take a sample of size n is to let all the possible samples have the same probability of being selected. this is called simple random sampling and then all units have the same probability of being ch...

cultural iran is a scope that is more extended than the political territories of iran as a political unit. this concept means that cultural geography(mehdi moghanlo-1383-1) of iran is greater than its political geography which, according to history, has a long history extending west-east from kandahar to the euphrates and north-south from the persian gulf to the caucasus including transoxiana a...

iv abstract this study examined the linguistic behaviors of two iranian efl teachers each of them teaching learners of two similar proficiency levels, a beginner level and an intermediate level, to investigate the relationship between the learners proficiency levels and the amounts and purposes for l1 use by the two teachers. the study was carried out to investigate whether there were differe...

abstract: about 60% of total premium of insurance industry is pertained?to life policies in the world; while the life insurance total premium in iran is less than 6% of total premium in insurance industry in 2008 (sigma, no 3/2009). among the reasons that discourage the life insurance industry is the problem of adverse selection. adverse selection theory describes a situation where the inf...

One of the most important social activities of the members of the society is the operations related to the contracts that they conclude. Pursuant to the principle of contractual freedom, individuals are free to act in accordance with their wishes.  One of the obstacles to enforcing this principle is public order. COVID 19 disease as a disease with a high epidemic rate with potentially fatal eff...

In this article, we has surveyed The evolution of nature of dissolution of contract Shi’it Jurisprudence, Sunni Jurisprudence schools and Iranian Law, with Comparative Study in England and French Law. Goal of this research was explaining the legal nature of dissolution of contract and effect of dissolution of contract in determining the rules and effects of this legal entity, and also ind...