the main purpose of this paper is formulating the comprehensive model for identify factors that impact on develop of organizational citizenship behavior in iranian petrol national firm. to achieve the purpose mentioned above, questionnaire survey method is used. participant in this research are 2500 people in staff of firms and 100 people are selected as sample. in this research is examined imp...

the most important goal of each society, is to reach economic development. as the goal and agent of development, man has got an important responsibility, which responsibility is realized by way of education, specially higher education, because the universities are the main factors for progress, production of knowledge and education of specialized human forces and they play a significant role in...

Compression of data in traditional relational database management systems significantly improves the system performance by decreasing size that results less transfer time within communication environment and higher efficiency I/O operations. The column-oriented should perform even better since each attribute is stored a separate column, so its sequential values are accessed sequentially on disk...

Volunteerism is a means of contributing either to the society, organization or individual. Either for satisfying individual’s self-interest altruistically helping others, volunteering creates value. The study aims examine impact self versus other-oriented messages on intentions and attitudes existing potential volunteers. Two studies were designed using fictitious foundations, find out effects ...

abstract controversy has not been yet resolved among l2 researchers as how to enhance higher-order thinking skills (hotss) in efl contexts. responding to the growing need to foster thinking skills, many l2 educators have recently attempted to investigate the effect of diverse teaching strategies on hots. yet, few studies have focused on the infusion of gardner’s (1999) theory of multiple intell...

Service-Oriented Architecture (SOA) is a promising approach for developing enterprise applications. While the concept of SOA has been described in research and industry literature, the techniques for determining optimal granularity of services and encapsulating business logic in software are unclear. This paper explores this problem using a case study developed with two contrasting approaches t...