Cerebro vascular CO2 Reactivity of the Fast and Slow Clearing Compartments • Regional cerebral blood flow measurements have been made at two levels of Paco, using the clearance of Xenon injected into the internal carotid artery. Specific and percent changes in blood flow per mm Hg change in Paco, (CO2 reactivity) have been calculated for the fast and slow clearing tissue (Ff and Fs) and F initi...

Markets are important coordination mechanisms for multiagent systems, and market clearing has become a key application area of AI algorithms. We study optimal clearing in the ubiquitous setting where there are multiple indistinguishable units for sale. The sellers and buyers express their bids via supply/demand curves. Discriminatory pricing leads to greater profit for the party who runs the ma...

Payments systems are typically characterized by some degree of tiering, with upstream firms (clearing agents) providing settlement accounts to downstream institutions that wish to clear and settle payments indirectly in these systems (indirect clearers). Clearing agents provide their indirect clearers with an essential input (clearing and settlement services), while also competing directly with...

The clearing procedure is a niching method inspired by the principle stated by J.H. Holland in 1975: the sharing of limited resources within subpopulations of individuals characterized by some similarities. But, instead of evenly sharing the available resources among the individuals of a subpopulation, the clearing procedure supplies these resources only to the best individuals of each subpopul...