Vincent Lowy, Marcel Ophuls

Frank Lowy Streptococci and Enterococci

The genus Streptococcus includes a heterogeneous group of different Gram positive species (>30) that are identified on Gram stain by their spherical or ovoid shape and their tendency to grow in pairs and chains. They are nonmotile, non-spore forming, and mostly facultatively anaerobic. Streptococci are a heterogeneous group that includes a variety of species capable of causing a diverse array o...

Marcel Arnold * and Marie

EPIDEMIOLOGY Cervical artery dissection accounts for up to 20% of strokes in patients under 30 years of age (Bogousslavsky et al. 1987). The incidence of carotid dissection is about 2–3 per 100 000 per year (Schievink et al. 1993; Giroud et al. 1995); the incidence of cervical dissection must be higher because these fi gures do not take into account vertebral dissection (about 25% of all dissec...

Roman Liepelt1, & Marcel Brass1,2

There is recent evidence that we directly map observed actions of other agents onto our own motor repertoire, referred to as direct matching (Iacoboni et al., 1999). This was shown when we are actively engaged in joint action with others' (Sebanz et al. 2003) and also when observing irrelevant movements while executing congruent or incongruent movements (Brass et al., 2000). However, an open qu...

Vincent Walsh

Vincent Walsh is Professor of Human Brain Research at University College London. He was a Royal Society University Research Fellow for 10 years and now leads the Visual Cognition Group in the Institute of Cognitive Neuroscience (ICN). His interests span visual perception, learning, time, space and number processing and synaesthesia. He engages widely in public communication projects and is a re...

Vincent Yeung