'Are these ones to taste?' : critical moments in Persian shops in Sydney

This article aims to examine potential and actual ‘critical moments’ that have occurred in one of the Persian ethnic shops in Sydney with the pseudonym, Persia, that had a bearing on the participants’ social inter¬actions. Specifically, this paper explores how service interactions occur in a site of engagement at a nexus of some aggregate of discourse in real time and space. Such discourse itineraries, R. Scollon (2008) argues, are always mediated by text, action and the material world, for ‘the rela¬tionship of text to text, language to language, is not a direct relationship but is always mediated by the actions of social actors as well as through material objects of the world’ (p. 223). Hence, bringing language use into its social context has an important contribution in casting light on how a social space like Persian ethnic shops, for instance, is replete with cultural-social meaning

Analysis Protocol for Dynamic Contrast Enhanced (DCE) MRI of Renal Perfusion and Filtration

Here we present an analysis protocol for dynamic contrast enhanced magnetic resonance imaging (DCE-MRI) data of the kidneys. It covers comprehensive steps to facilitate signal to contrast agent concentration mapping via T1 mapping and the calculation of renal perfusion and filtration parametric maps using model-free approaches, model free analysis using deconvolution, the Toft's model and a Bayesian approach.This chapter is based upon work from the COST Action PARENCHIMA, a community-driven network funded by the European Cooperation in Science and Technology (COST) program of the European Union, which aims to improve the reproducibility and standardization of renal MRI biomarkers. This analysis protocol chapter is complemented by two separate chapters describing the basic concept and experimental procedure