The Royden ideal boundary of a domain is the set of all points in the maximal ideal space of the domain's Royden algebra that do not lie in the domain. Elements of the Royden ideal boundary can be characterized as nets convergent in both the weak and Euclidean topologies that have no subnet which is a sequence. As with other function algebras, boundary bers can be deened as subsets of all point...

We study nite centralizing extensions A H of Noetherian Hopf algebras. Our main results provide necessary and suucient conditions for the bers of the surjection spec H spec A to coincide with the X-orbits in spec H, where X denotes the nite group of characters of H that restrict to the counit of A. In particular, all of the bers are X-orbits if and only if the ber over the augmentation ideal of...

The Cholinergic and GABAergic .bers of the medial septal/diagonal band of Broca (MS/DB) area project to the hippocampus and constitute the septo-hippocampal pathway, which has been proven to play a role in learning and memory. In addition, the hippocampus has bidirectional connections with the septum so that to self-regulate of cholinergic input. The activity of septal and hippocampal neuron...

We present estimates of the e ciency for nding QSOs as a function of limiting mag nitude and galactic latitude From these estimates we have formulated a target selection strategy that should net QSOs in the north galactic cap with an average of bers per plate not including bers reserved for high redshift quasars With this plan we expect of the targets to be QSOs The North Galactic Cap is divide...

We propose a new strategy for reducing the amount of latency and energy consumption in Blocking Expanding Ring Search (BERS) and enhanced Blocking Expanding Ring Search (BERS*) for mobile ad hoc networks (MANETs). BERS and BERS* are respectively energy and energytime efficient route discovery protocols for MANETs as compared to conventional Expanding Ring Search (ERS). In this study, we identif...

A quantitative analysis of the effects of variable ®ber properties on the performance of a cross̄ow hollow ®ber gas separation module is presented. The effects of variations in size, permeance, and selectivity are considered. Fiber variability is detrimental to performance. The recovery and ̄ow rate of an enriched retentate stream decrease as variability increases. Some ®bers may actually stop p...