In order to study the effect of altitude on some quantitative and qualitative characteristic of Populus deltoides in Mazandaran province, three sites were selected with elevations between 150 and 1200 m above sea level in Sari city. In each site, some tree traits such as diameter at breast height, total height, basal area, volume, form factor and qualitative variables including trunk heal...

Background & Aims: Empowerment is the most important challenge for managers in this era. Because organizations are subject to rapid and unpredictable changes. Among the most important factors of these changes, we can mention the increasing global competition, the development and expansion of information technology, and changes in the characteristics and demands of customers. The change in the c...

educational researchers have provided evidence that teachers’ emotional intelligence has strong effects on various aspects of teaching and learning. yet, in the field of teaching english to speakers of other languages (tesol), inquiry into teachers’ emotional intelligence is nearly limited. given its documented powerful impact on teaching practices and student learning, it is critical to pursue...

The aim of this study is to design a model based on the paradigm role of education management in the excellence of educational organizations in the twenty regions of Iran. Therefore, the mixed research method was used and data were collected in two quantitative and qualitative stages.In the first stage, interviews with 16 experts of railway training , practical implementation of ten commandme...