1- in a search directed to the reaction of compound)23(the cycloaddition reaction of 1,3- diphenylisobenzofurane)14(with p-benzoquinone)19(,followed by addition of cyclopentadiene was carried out.the specific spacial stracture of its ir,nmr,mass spectra. 2- in another attempt the kinetic stability and behavior of compounds)20(and)23(was studied.the main subject of this study was the highly reve...

Reporting of Arab’s battles was an object of consideration in Islamic historiography. About 1400 conflicts between benighted Arab tribes have been recorded in Islamic sources. Accurate reporting of the wars of the Prophet and conquests of the caliphs was also one of the most important topics of interests to Islamic historians in the Islamic era until the gradual emergence of a bunch of military...

Background and Aim: This study is an epistemological account of the collective nature of the problem of obesity prevalence among the military personnel that by reflecting on the existing knowledge and current and future paths that lead to obesity in the military personnel, we sought to give a conceptual model policymaking for tackling obesity. The prevalence of obesity is a serious challenge fo...

the purpose of this study was to investigate the effect of task repetition on accuracy of iranian efl learners ’speaking ability. in order to achieve this purpose, a null hypothesis was developed: there is no statistically significant difference between accuracy speaking ability in iranian efl learners by use of task repetition. ; of course i should mention that, beside this null hypothesis, an...

Certain characteristics of sometimes bear such significance that they bring about change of meaning not only in specific domains but also in the general concepts of mangagement. Close attention to the special concepts of industrial, military, administrative, educational and political management reveals the subtlety, complexity and role of this point when we explain management issues.