In this work, the continuously controlled techniques developed by Carlsson and Pedersen are used to prove that the Baum-Connes map is a split injection for groups satisfying certain geometric conditions.

In this paper, we use the KK-theory of Kasparov to prove exactness of sequences relating the K-theory of a real C∗ -algebra and of its complexification (generalizing results of Boersema). We use this to relate the real version of the Baum-Connes conjecture for a discrete group to its complex counterpart. In particular, the complex Baum-Connes assembly map is an isomorphism if and only if the re...

The main thrust of present note is a volume formula for hyperbolic surface bundle with the fundamental group G. The novelty consists in a purely algebraic approach to the above problem. Initially, we concentrate on the Baum-Connes morphism μ : K•(BG)→ K•(C ∗ redG) for our class of manifolds, and then classify μ in terms of the ideals in the ring of integers of a quadratic number field K. Next, ...

With the announcement of the NLM Administrative Supplement Grant, the informationists at the Welch Medical Library found an interested and enthusiastic Principal Investigator (PI) in the Department of Radiology at The Johns Hopkins School of Medicine. Although the PI had not used the services of a Welch informationist before, he was eager to collaborate with an informationist on the grant “Dose...

T he actin cytoskeleton powers a variety of processes, from cell migration to intracellular membrane transport. Pathogens often harness their host's actin network to their own ends, hijacking the cytoskeleton to drive cell entry, survival, and intercellular spread. Matthew Welch studies the many different mechanisms that host cells and pathogens use to initiate actin fi lament assembly at the r...

A doctor has a duty to give his patient what he believes to be the best treatment. An ethical prerequisite of recommending her to enter a randomised clinical trial (RCT), in which his patient will be randomly allotted to one of two or more treatments, is, as Michael Baum in his chapter stresses, that he is ignorant about their relative efficacy and, hence, justifiably indifferent as to which sh...