Commercial-scale fermentation for tobramycin manufacture is carried out with Streptomyces tenebrarius. Impurity profiling during various phases of pharmaceutical production is important for evaluating the effectiveness of a processing step and meeting regulatory requirements. High-performance anion-exchange (HPAE) chromatography with integrated pulsed amperometric detection (HPAE-IPAD) is a hig...

this investigation postulatesvygotsky’s (1978) concept of zone of proximal development (zpd) and his related “scaffolding” metaphor as well as norton’s (2006) principles of sociocultural identity as its theoretical foundation.thisresearchintends to scrutinizethe socioculturally-oriented mediationalmechanisms utilized in student-student and student-teacher collaborationsin an iranian efl writing...

identity orientations refer to the relative importance that individuals place on various identity attributes or characteristics such as race, religion, culture and language when constructing their self-definitions (chew, 2007; cheek, 1989). accordingly, the present study aims at identifying the impact of identity aspects on the iranian learners' english language achievements at shiraz universit...

the present study was aimed at examining concerns about the social effects of efl learning, a challenging area of research which has not been discussed sufficiently. it tried to investigate the relationship between efl learning and national identity. in addition, attempt was made to find a relationship between language motivation types and national identity. furthermore, the role of two demogra...

The aim of the present study was the conducting of comparative analysis of allele pool of Ukrainian population of Thoroughbred horses and the populations from England, USA, Russia and South Korea using microsatellite loci of DNA on the basis of our own researches and literary sources. Comparative analysis of allele pool of Thoroughbred populations from different countries was conducted using 6 ...