portfolios as a means of constructivist learning appear to show great promise in enhancing diverse dimensions of learning and promoting learner motivation. this study is an investigation into the effectiveness of portfolio development on the reading comprehension and academic motivation of undergraduate students majoring in english literature in iran. in order to answer the research questions, ...

purpose: to evaluate the incidence of medication error in patients who underwent intraocular surgery based on different methods of drug instruction (hand-written versus orally explained) at labbafinejad medical center. methods: during a 6-month period, we evaluated 204 postoperative patients who underwent cataract or glaucoma surgery. patients were randomly assigned to two groups; in group i, p...

projects scheduling by the project portfolio selection, something that has its own complexity and its flexibility, can create different composition of the project portfolio. an integer programming model is formulated for the project portfolio selection and scheduling.two heuristic algorithms, genetic algorithm (ga) and simulated annealing (sa), are presented to solve the problem. results of cal...

The current study sought to explore the impact of SFL-oriented register instruction on Iranian EFL learner’ writing performance with a central focus on their English proficiency level. As its secondary aim, the study delved deeply into the learners’ perception of the register-based instruction. To these ends, 50 intermediate and 50 advanced Iranian EFL learners were selected randomly and assign...

Investors use different approaches to select optimal portfolio. so, Optimal investment choices according to return can be interpreted in different models. The traditional approach to allocate portfolio selection called a mean - variance explains. Another approach is Markov chain. Markov chain is a random process without memory. This means that the conditional probability distribution of the nex...

the present study is an attempt toward evaluating the performance of portfolios and assets selecting using modified mean-variance models by utilizing a non-parametric efficiency analysis tool, namely data envelopment analysis (dea). huge amounts of money are being invested in financial market. as a result, portfolio performance evaluation has created a great deal of interest among people. we kn...