We describe two-dimensional steady propagating flame fronts in the stagnation mixing layer between two opposed streams of the same reactive mixture, the propagation taking place in the direction perpendicular to the plane of strain. The front, which is curved by the nonuniform flow field, separates a chemically frozen region from a region with a twin-flame configuration. The front velocity is c...

The concept that multiple pools of stored catecholamines exist in catechol~ine-containing neurons has been the subject of research interest for a number of years. The initial observations suggesting the existence of more than one pool came from studies utilizing various methods to determine catecholamine turnover. These methods included determination of decline rates of catecholamines after syn...

group dynamic assessment (g-da) grounded in vygotsky’s socio-cultural theory (sct) is believed to have the potential to provide a context for capturing a group of learners’ zone of proximal development (zpd) (poehner & lantolf, 2010; shabani, 2010). the present study aims at testing the applicability of g-da in identifying the mediational strategies offered by a mediator during his g-da int...

Objectives: This case study highlights the applicability of Dynamic Assessment (DA) in exploring the cognitive development and intellectual functioning of a schizophrenic foreign language learner. Methods: The general analytical framework of study to unmask the changes in the learner’s competence is Microgenesis. Results: Analysis of the findings not only supports the Vygotskian view re...

Although oxytocin (OT) has become a major target for the investigation of positive social processes, it can be assumed that it exerts its effects in concert with other neurotransmitters. One candidate for such an interaction is dopamine (DA). For both systems, genetic variants have been identified that influence the availability of the particular substance. A variant of the gene coding for the ...