intrinsic signals and fMRI, and more recently with optogenetic methods (Lee et al., 2010) have permitted remarkable insights into the organization of brain activity and the underlying neuronal mechanisms, suggesting that, within reasonable approximation, this assumption is correct. However, recent reports seem to challenge this assumption. How much? Schummers et al. (2008) recently reported tha...

Assumption{Commitment paradigms for speciication and veriication of concurrent programs have been proposed in the past. We show that two typical parallel composition rules for shared variable and message passing programs 8, 12] which hitherto required diierent formulations are instances of one general rule mainly inspired by Abadi & Lamport's composition theorem 1].

The total order assumption (TOA) is the assumption that all execution sequences of observable actions or events are totally ordered by precedence. As long as in some cases TOA is to the point, total order and partial order semantics are both legitimate but lead to different theories. I argue that TOA is a simplifying assumption, and present an example of a total order theory without interleavin...

It has been a remarkable text, Wilfred Bion's Experiences in Groups (1961); a landmark in thought and conceptualization of the unconscious functioning of human beings in groups. The working hypotheses he formulated on the mental activity of members of groups have robustly stood the test of time. In part, this has been because of the Working Conferences on Group Relations which started from his ...