market structure is one of the most important characteristics of every industry. although, there exist different indices such as concentration, economies of scale, entry of firms, product differentiation, etc. for the evaluation of market structure, but most of the studies in the subject have used only one of these indices (usually concentration). in this study, by application of fuzzy inferenc...

BACKGROUND Caucasian norms are still used in the orthodontic treatment of Iranian patients, despite the different ethnic backgrounds of Iranians. The aims of this study were to evaluate the cephalometric features of an Iranian population and to establish cephalometric norms for Iranian living in the central region of Iran (Isfahan). MATERIALS AND METHODS A total of 238 lateral cephalometric r...

This study reports an investigation of Iranian test-takers’ use of cognitive and metacognitive strategies while performing on IELTS reading tests. Specifically, the study set out to investigate: a) the relationship between Iranian test-takers’ use of cognitive and metacognitive strategies and their L2 reading test performance on the reading section of the IELTS test; and b) the role gender migh...

The genomes of Pseudomonas aeruginosa isolates of the new sequence type ST-1146, three environmental (P37, P47 and P49) and one clinical (SD9) isolates, with differences in their antibiotic susceptibility profiles have been sequenced and analysed. The genomes were mapped against P. aeruginosa PAO1-UW and UCBPP-PA14. The allelic profiles showed that the highest number of differences were in "Rel...

In a 1945 monograph, Hrdlička argued that, at 1,000 BP, Paleo-Aleut people on Umnak Island were replaced by NeoAleut groups moving west along the island chain. His argument was based on cranial measurements of skeletal remains from Chaluka Midden and mummified remains from Kagamil and Ship Rock burial caves. By the 1980s, researchers had concluded that the transition demonstrated by Hrdlička, f...

processing of minerals and production of metals has increased greatly in recent years. as a result, the quantities of waste material and pollutants have also increased. in many cases technology has changed to cope with the problem. processes have been either modified to decrease emissions, or replaced by others that are less polluting even if at a higher cost. this paper briefly reviews example...