central to vygotsky-inspired sociocultural theory (sct) is the notion of zpd seen by sla researchers as a useful framework within which l2 teaching and learning can take place. van lier (2004) argues that the zpd could be activated in diverse proximal contexts (pcs) and is not limited to the expert-novice scenario. . this study probed whether iranian efl learners' collaborative task performance...

BACKGROUND This study was performed to develop a functional poly(D,L-lactide-co-glycolide)-poly(ethylene glycol) (PLGA-PEG)-bearing amino-active end group for peptide conjugation. METHODS AND RESULTS PLGA was preactivated following by copolymerization with PEG diamine. The resulting amphiphilic PLGA-PEG copolymer bearing 97.0% of amino end groups had a critical micelle concentration of 3.0 × ...

intellectual capital (ic) is organizational intangible asset which is frequently associated with performance. ic is commonly categorized into three core components: human capital, structural capital and relational capital. this study takes a step further in the evolution of the ic model for the hotel industry and divides relationship capital into two categories: end customer- relationship capit...

background: canine parvovirus (cpv) infection is one ofthe most common causes of infectious gastroenteritis in dogs andis a highly contagious, often fatal disease. the original virus(cpv type 2) has had some mutations since its emergence andnew variants (cpv-2a, 2b and 2c) have been reported from manycountries all around the world. early diagnosis and treatment canprofoundly affect the disease ...