Alexander Stephan: Christa Wolf

Quicktree - SD Stephan

Phylogenetic methods are becoming part of the standard methodologies used in the analyses of biological sequence data, but several of the classical tools of phylogenetic inference were not designed with high throughput applications in mind. During our surveys, we haven't found software for the fast inference of neighbor joining trees from sequence alignments which could use biologically realist...

Uncertainty as knowledge Stephan Lewandowsky

This issue of Philosophical Transactions examines the relationship between scientific uncertainty about climate change and knowledge. Uncertainty is an inherent feature of the climate system. Considerable effort has therefore been devoted to understanding how to effectively respond to a changing, yet uncertain climate. Politicians and the public often appeal to uncertainty as an argument to del...

Achim Stephan Are Animals Capable of Concepts?

Often, the behavior of animals can be better explained and predicted, it seems, if we ascribe the capacity to have beliefs, intentions, and concepts to them. Whether we really can do so, however, is a debated issue. Particularly, Donald Davidson maintains that there is no basis in fact for ascribing propositional attitudes or concepts to animals. I will consider his and rival views, such as Col...

Stephan ’ s Quintet with XMM - Newton

The prototype compact group known as Stephan's Quintet (SQ) was observed with XMM-Newton in order to complement the excellent resolution of Chandra with high sensitivity to extended emission. SQ is a dynamic environment whose main effect, at both X-ray and optical wavelengths, appears to be ISM stripping. This is manifested by: 1) secular evolution of morphological types towards earlier types a...

Wolf Wolf--The Ramifications of Frivolous Appeals