methodology non-native participants in this study were sixty ba students majoring in english literature and teaching english as a foreign language at khayyam university of mashhad. they were senior students, between 21 to 24 years old, who had studied english for at least three and a half years and had passed several courses including grammar, reading, conversation, and writing. this was assum...

in the first chapter we study the necessary background of structure of commutators of operators and show what the commutator of two operators on a separable hilbert space looks like. in the second chapter we study basic property of jb and jb-algebras, jc and jc-algebras. the purpose of this chapter is to describe derivations of reversible jc-algebras in term of derivations of b (h) which are we...

abstract in aggregate, active forms of reactive silica with mineral names are sometimes associated with sand and gravel in concrete mixture. alkali hydroxides originated from alkalis in the cement or other resources form an alkaline silica gel with this reactive silica which becomes swallowed and expanded during time causing damage to concrete. there have been growing researches on alkaline r...

the changes in todays world organization, to the extent that instability can be characterized with the most stable organizations called this afternoon. if you ever change management component, an additional value to the organization was considered, today, these elements become the foundation the organization is survival. the definition of the entrepreneur to identify opportunities to exploit a...

AbstractObjectives: Evaluating the association of other types of violence with sexual violence in Iranian couples, as well as assessing the relation of sexual violence and marital attitudes of abused women. Method: 200 couples were selected via a multi-cluster sampling method and completed the Marital Attitude Survey and Conflict Tactic Scale Revised. Results: The experience of physical or psy-...

Background: This study was conducted to validate the "staff attitude toward the use of coercion in the treatment of mentally ill patients" questionnaire and assessed their attitude in selected public psychiatric hospitals in Tehran city. Materials and Methods: This is a descriptive and analytical study which was carried out on three hospitals of Tehran University of Medical Sciences, Iran Univ...