For more than three decades, Oxidative Coupling of Methane (OCM) process has been comprehensively investigated as an attractive alternative for the commercially available ethylene production technologies such as ethane and naphtha cracking. Developing a suitable catalyst and proper reactor feeding policy, reviewing and deploying the efficient methods in the separation and purification of the un...

The objective of the article is the comparative analysis of Likert rating scale based on the following range of response categories, i.e. 5, 7, 9 and 11 in context of the appropriate process of factors extraction in exploratory factor analysis (EFA). The problem addressed in the article is related primarily to the methodological aspects, both in selection of the optimal number of response categ...

Critical Discourse Analysis (CDA) could be seen as a theory in qualitative more than in qualitative stud- ies. This might have led to difficulty in doing CDA. Accordingly, this study attempted to develop a quan- titative profile in the form of an analytic rubric. For this purpose, Fairclough’s model of CDA was select- ed as the research framework. The techniques used for structuring analy...

modern societies belief life insurance scheme, which is designed to be backbone of man survival, ensure financial security and offers readymade source of long term capital financing for the infrastructural project is capable of combating the besetting problem of man so that life can be made easy and continuous. the dramatic increase in competition within the insurance sector and the needs of in...

in this paper, it is assumed that the “decision making units“( ) are consist of positive and negative input and output. firstly, the optimistic and pessimistic models have been suggested by using negative data and then units with most productive scale size are measured in optimistic and pessimistic models. these productive values are compared with double frontiers and hurwicz’s criterion to obt...

introduction: anxiety of patients is one of the problems in dentistry which are considered in recent years, and it prevents them from having a treatment out of stress. this study was conducted to specify anxiety prevalence and related elements among endodontic patients. materials and methods: the study was conducted on 150 patients referred to endodontic department of dental school of islamic a...