Introduction: One of the important issues of aging is social isolation, which has adverse effects on the quality of life of the elderly, so the present study was designed with the aim of the Social isolation and related factors in the elderly of Gonabad city in 2022. Methods: The current cross-sectional descriptive study was conducted on 403 elderly people who met the inclusion criteria. The da...

the methods which are used to analyze microstrip antennas, are divited into three categories: empirical methods, semi-empirical methods and full-wave analysis. empirical and semi-empirical methods are generally based on some fundamental simplifying assumptions about quality of surface current distribution and substrate thickness. thses simplificatioms cause low accuracy in field evaluation. ful...

the rationale behind the present study is that particular learning strategies produce more effective results when applied together. the present study tried to investigate the efficiency of the semantic-context strategy alone with a technique called, keyword method. to clarify the point, the current study seeked to find answer to the following question: are the keyword and semantic-context metho...