Background :Nursing managers and leaders have a vital role in organizing and providing nursing care in medical centers. Effective managers and leaders should guide employees appropriately towards the goals of the organization, increasing the quality of care and increasing the level of society’s health. This study was designed with the aim of explaining nurses' experiences of effective leade...

abstract part one: the electrode oxidation potentials of a series of eighteen n-hydroxy compounds in aqueous solution were calculated based on a proper thermodynamic cycle. the dft method at the level of b3lyp-6-31g(d,p) was used to calculate the gas-phase free energy differences ,and the polarizable continuum model (pcm) was applied to describe the solvent and its interaction with n-hydroxy ...

the present study was conducted to investigate the role of summary in teaching grammar process on pre-university students. to this end, 48 male pre-university students in semnan were participants. they were math class that we called experimental group and science class as control group. in order to make sure there was no significant difference in proficiency level of two groups. a pre-test wa...

the purpose of the research is to examine if integrating cooperative learning into vocabulary learning helps to increase word recognition of students in an elementary school in iran. it tries to investigate whether cooperative learning approach enables students to improve their language learning. this research used stad (students team achievement division) as a cooperative model in this study. ...

The purpose of this study was to explore the fundamental construction for school organizational diagnosis. The nature of this research was a qualitative type of interpretive phenomenology based on the lived experience of principals. Participants in this study were 9 principals with sufficient background and experience to be invited to collaborate with successful target-based sampling and theore...

among the low–dimensional allotropes of carbon, nanotubes and graphene have attracted very much attention from nano–science and nanotechnology specialists. they have been proposed as building blocks in nanometer device engineering. however, these structures are not defect–free. in this thesis, we focused on defective carbon nanotubes and graphene, and studied the effect of couple of very common...

In the current economic conditions of the country, retaining knowledge workers is one of the most important future challenges for organization, especially in the knowledge-based organizations. So, this study aimed at designing a knowledge worker turnover model. The mixed method has been used in this research. In order to collect data, three-stage Delphi technique, semi-structured interviews and...