Foreign language learners without an immersion experience are advised to partake in activities that enhance their learning outside the classroom. The objectives of this study were explore which forms practice English as a Language (EFL) engage classroom and whether increases proficiency. results showed most frequent academic (e.g., reading textbooks) recreational watching movies). In study, EFL...

In the recent decade, special attention is paid to reverse logistic due to economic benefits of recovery and recycling of used products as well as environmental legislation and social concerns. On the other hand، many researches claim that separately and sequential planning of forward and reverse logistic causes sub-optimality. Effective transport activities are also one of the most important c...

BACKGROUND Diagnosis of Niemann-Pick (A and B) and Krabbe diseases is achieved by measurement of the lysosomal enzymes acid sphingomyelinase (ASM) and galactocerebroside beta-galactosidase (GCG), respectively. Conventional assays use radiolabeled or fluorescent substrates and do not allow simultaneous determination of two or more enzymes in the sample. METHODS We developed a sensitive and spe...