One of the most famous methods for recommendation is user-based Collaborative Filtering (CF). This system compares active user’s items rating with historical rating records of other users to find similar users and recommending items which seems interesting to these similar users and have not been rated by the active user. As a way of computing recommendations, the ultimate goal of the user-ba...

The present study was an attempt to investigate the significance of environmental changes on the develo p- ment of writing in English as a Foreign Language (EFL) context with respect to the individual. This study also compared the impacts of collaboration and asynchronous computer mediation (ACM) on the writing complexity of EFL learners. To this end, three intact writing classes were designate...

This study sought to investigate dynamic assessment (DA) - an assessment approach that embeds inter- vention within the assessment process and that yields information about the learner’s responsiveness to this intervention - and the writing performance of the second language (L2) learners in Web 2.0 contexts. To this end, pre and post-treatment writings of 45 par...

background and objective: co-authorship on writing articles is one of the indicators of reliability in scientific articles. due to the lack of information regarding to the rate of participation of the authors of articles in the ” iranian journal of pathology” this research with the aim of the survey of collaborative coefficients of article authors in this journal  from 2006 to 2012 was performe...

Background: Nowadays, due to ineffectiveness of interventions in the prevention of obesity in school-age children, collaborative approach in order to prevent and control the obesity seems necessary. Aim: to assess the impact of health promotion programs with collaborative approach on physical activity levels of overweight school-age girls. Methods: This quasi-experimental and pretest/post-test ...