André Akoun (1929-2010)

A conjecture of Yves André . ∗

The introduction to [2] (and references contained therein) contains a comprehensive exposition of terminology and notations relative to this conjecture. Since we use the same terminology and notations, we do not reproduce them here. The introduction to [2] also contains an exposition of results on this conjecture obtained before the article [3] came out. In this article we prove the following t...

François Bach and André Herbelin

Reals which Compute Little André

We investigate combinatorial lowness properties of sets of natural numbers (reals). The real A is super-low if A′ ≤tt ∅′, and A is jump-traceable if the values of {e}A(e) can be effectively approximated in a sense to be specified. We investigate those properties, in particular showing that super-lowness and jump-traceability coincide within the r.e. sets but none of the properties implies the o...

Frank Ruddle (1929-2013).

Frank Ruddle, a pioneer in science and versatile in human gene mapping, transgenic technology, and several other fields in biology, has left a significant legacy. Frank was born August 19, 1929, in West New York, New Jersey, to parents who emigrated from the United Kingdom. He dropped out of high school to join the Air Force, where he served with distinction from 1946 to 1949. Like many other v...

Op-brhe130245 1929..1930

The musculoskeletal community has struggled to secure from health policymakers and providers the level of engagement the disease burden demands. Considerable effort has been expended to define boundaries of conditions within which there is a spectrum of severity but between which there is substantial overlap. Acknowledging this, rheumatologists have long debated the value of lumping vs splittin...